diff --git a/conversations/conv_000003.json b/conversations/conv_000003.json
deleted file mode 100644
index 5753492931614e1ccfb8ba2d86e01c0a7a7ab04e..0000000000000000000000000000000000000000
--- a/conversations/conv_000003.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.553737857626352,
-      "duration": 6.553737857626352,
-      "start_frame": 0,
-      "duration_frames": 104859,
-      "overlap": false,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.282209620114036,
-      "end_time": 12.647695455668106,
-      "duration": 5.365485835554072,
-      "start_frame": 116515,
-      "duration_frames": 85847,
-      "overlap": false,
-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.87736986725478,
-      "end_time": 16.686690081226324,
-      "duration": 3.8093202139715454,
-      "start_frame": 206037,
-      "duration_frames": 60949,
-      "overlap": false,
-      "utterance_id": "52-123202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-123202.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.803856734737238,
-      "end_time": 20.51857893704554,
-      "duration": 3.714722202308301,
-      "start_frame": 268861,
-      "duration_frames": 59435,
-      "overlap": true,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 104859
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.374186677068423,
-      "end_time": 26.44242389156455,
-      "duration": 5.068237214496128,
-      "start_frame": 341986,
-      "duration_frames": 81091,
-      "overlap": true,
-      "utterance_id": "52-123202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-123202.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 60949
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.571864059860058,
-      "end_time": 32.0,
-      "duration": 4.428135940139942,
-      "start_frame": 441149,
-      "duration_frames": 70850,
-      "overlap": false,
-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 85847
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
-      "start_time": 5.668837119090823
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
-      "duration": 3.0230913354768436,
-      "start_time": 4.364239830943262
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3400/cough/0000.wav",
-      "duration": 0.46259342271461373,
-      "start_time": 12.813581229754902,
-      "speaker_id": "3400"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1849/laugh/0073.wav",
-      "duration": 0.6796201827507978,
-      "start_time": 15.987699282676608,
-      "speaker_id": "1849"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3400/laugh/0076.wav",
-      "duration": 1.1548725826127366,
-      "start_time": 26.37768709165218,
-      "speaker_id": "3400"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000015.json b/conversations/conv_000015.json
deleted file mode 100644
index c451e6f37b8843f738a34a90d3ac476f267c75fd..0000000000000000000000000000000000000000
--- a/conversations/conv_000015.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99835390309829,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.421488016049101,
-      "duration": 5.421488016049101,
-      "start_frame": 0,
-      "duration_frames": 86743,
-      "overlap": false,
-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.016008130825984,
-      "end_time": 10.789204253579314,
-      "duration": 4.77319612275333,
-      "start_frame": 96256,
-      "duration_frames": 76371,
-      "overlap": false,
-      "utterance_id": "501-125128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.419612717412356,
-      "end_time": 17.132651229761418,
-      "duration": 5.713038512349063,
-      "start_frame": 182713,
-      "duration_frames": 91408,
-      "overlap": false,
-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 86743
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.44268289735508,
-      "end_time": 21.940540593920822,
-      "duration": 4.497857696565743,
-      "start_frame": 279082,
-      "duration_frames": 71965,
-      "overlap": false,
-      "utterance_id": "501-125128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 76371
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.803680329304044,
-      "end_time": 27.94275405289562,
-      "duration": 5.139073723591577,
-      "start_frame": 364858,
-      "duration_frames": 82225,
-      "overlap": false,
-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 178151
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.12647545253006,
-      "end_time": 31.99835390309829,
-      "duration": 3.8718784505682318,
-      "start_frame": 450023,
-      "duration_frames": 61950,
-      "overlap": false,
-      "utterance_id": "501-125128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 148336
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
-      "duration": 2.0669614512471655,
-      "start_time": 7.916355647845847
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
-      "duration": 1.129308425963366,
-      "start_time": 3.5977962810172297
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/501/cough/0007.wav",
-      "duration": 0.9891480386445826,
-      "start_time": 6.840327142330733,
-      "speaker_id": "501"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3259/cough/0113.wav",
-      "duration": 0.4852481894888865,
-      "start_time": 10.736514182227557,
-      "speaker_id": "3259"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/501/cough/0078.wav",
-      "duration": 0.6220176806982596,
-      "start_time": 22.007650219822086,
-      "speaker_id": "501"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3259/cough/0089.wav",
-      "duration": 0.84,
-      "start_time": 21.866842912716642,
-      "speaker_id": "3259"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000019.json b/conversations/conv_000019.json
deleted file mode 100644
index 8f87f37455073f3c1b09eb673010bc8f62232862..0000000000000000000000000000000000000000
--- a/conversations/conv_000019.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.346719935969695,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.441478873553049,
-      "duration": 5.441478873553049,
-      "start_frame": 0,
-      "duration_frames": 87063,
-      "overlap": false,
-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.364826395664331,
-      "end_time": 10.340767203558098,
-      "duration": 4.975940807893766,
-      "start_frame": 85837,
-      "duration_frames": 79615,
-      "overlap": true,
-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.19513307856829,
-      "end_time": 17.609061391369735,
-      "duration": 5.4139283128014455,
-      "start_frame": 195122,
-      "duration_frames": 86622,
-      "overlap": false,
-      "utterance_id": "2688-144986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144986.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.253538172422772,
-      "end_time": 22.323211974620214,
-      "duration": 4.069673802197443,
-      "start_frame": 292056,
-      "duration_frames": 65114,
-      "overlap": false,
-      "utterance_id": "3825-134160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.845013743329798,
-      "end_time": 25.961887396754864,
-      "duration": 3.116873653425066,
-      "start_frame": 365520,
-      "duration_frames": 49869,
-      "overlap": false,
-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 79615
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.474535094876572,
-      "end_time": 30.214548689641262,
-      "duration": 3.740013594764691,
-      "start_frame": 423592,
-      "duration_frames": 59840,
-      "overlap": false,
-      "utterance_id": "6726-56640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.09559896161616,
-      "end_time": 31.346719935969695,
-      "duration": 1.2511209743535332,
-      "start_frame": 481529,
-      "duration_frames": 20017,
-      "overlap": true,
-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 129484
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
-      "start_time": 1.4300979646443557
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
-      "duration": 1.144754416061431,
-      "start_time": 21.983459572333945
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
-      "duration": 0.2008390022675737,
-      "start_time": 16.596913478427943
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2688/laugh/0066.wav",
-      "duration": 1.32,
-      "start_time": 8.198100128142016,
-      "speaker_id": "2688"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2688/cough/0063.wav",
-      "duration": 0.6113859864816317,
-      "start_time": 26.114207710605065,
-      "speaker_id": "2688"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2688/laugh/0109.wav",
-      "duration": 0.5243584879239971,
-      "start_time": 29.562446436427898,
-      "speaker_id": "2688"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000023.json b/conversations/conv_000023.json
deleted file mode 100644
index 371347b4e5797a55b8b76f7a67b9300d87129c5a..0000000000000000000000000000000000000000
--- a/conversations/conv_000023.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.593135643898957,
-      "duration": 5.593135643898957,
-      "start_frame": 0,
-      "duration_frames": 89490,
-      "overlap": false,
-      "utterance_id": "64-76974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76974.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.743584500838207,
-      "end_time": 10.584708758093136,
-      "duration": 4.84112425725493,
-      "start_frame": 91897,
-      "duration_frames": 77457,
-      "overlap": true,
-      "utterance_id": "8396-120281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120281.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.870855843536262,
-      "end_time": 18.14054054762657,
-      "duration": 6.269684704090308,
-      "start_frame": 189933,
-      "duration_frames": 100314,
-      "overlap": false,
-      "utterance_id": "64-76974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76974.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 89490
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "7001-12337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7001-12337.flac |",
-      "real_speaker_id": "7001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-73712.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 30.4171456717168,
-      "end_time": 32.0,
-      "duration": 1.5828543282832008,
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-      "utterance_id": "64-76973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76973.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
-      "duration": 19.11394302076122,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
-      "duration": 1.9501132196362096,
-      "start_time": 10.005466656026178
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_10.wav",
-      "duration": 0.3551020408163265,
-      "start_time": 25.175702709284575
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8396/cough/0066.wav",
-      "duration": 1.2879783706217998,
-      "start_time": 5.763543406000553,
-      "speaker_id": "8396"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/64/laugh/0055.wav",
-      "duration": 1.08,
-      "start_time": 10.517344343905297,
-      "speaker_id": "64"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/64/cough/0111.wav",
-      "duration": 0.9263995705152774,
-      "start_time": 26.46626225163373,
-      "speaker_id": "64"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000024.json b/conversations/conv_000024.json
deleted file mode 100644
index dc9137cc6d18e75bd638a3f3b7203c3efe1d355a..0000000000000000000000000000000000000000
--- a/conversations/conv_000024.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.775493239103316,
-      "duration": 6.775493239103316,
-      "start_frame": 0,
-      "duration_frames": 108407,
-      "overlap": false,
-      "utterance_id": "4064-19132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-19132.flac |",
-      "real_speaker_id": "4064",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.702882133357752,
-      "end_time": 12.553902418081048,
-      "duration": 5.851020284723297,
-      "start_frame": 107246,
-      "duration_frames": 93616,
-      "overlap": true,
-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.570579329198843,
-      "end_time": 17.759798577477007,
-      "duration": 4.189219248278166,
-      "start_frame": 217129,
-      "duration_frames": 67027,
-      "overlap": false,
-      "utterance_id": "1963-142393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1963-142393.flac |",
-      "real_speaker_id": "1963",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.23352894717243,
-      "end_time": 24.980655030890034,
-      "duration": 6.747126083717603,
-      "start_frame": 291736,
-      "duration_frames": 107954,
-      "overlap": false,
-      "utterance_id": "4064-19132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-19132.flac |",
-      "real_speaker_id": "4064",
-      "position_frames": 108407
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.890541351053166,
-      "end_time": 31.178866436959957,
-      "duration": 5.2883250859067905,
-      "start_frame": 414248,
-      "duration_frames": 84613,
-      "overlap": false,
-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 93616
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.543980798048672,
-      "end_time": 32.0,
-      "duration": 0.45601920195132806,
-      "start_frame": 504703,
-      "duration_frames": 7296,
-      "overlap": false,
-      "utterance_id": "4064-77779",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-77779.flac |",
-      "real_speaker_id": "4064",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
-      "duration": 11.097293985122167,
-      "start_time": 5.337080075898789
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
-      "duration": 2.991069742830463,
-      "start_time": 3.8426505606863652
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4064/laugh/0028.wav",
-      "duration": 0.756059212312266,
-      "start_time": 0.607411081212614,
-      "speaker_id": "4064"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4064/cough/0041.wav",
-      "duration": 0.6105107480758475,
-      "start_time": 4.5475279527446775,
-      "speaker_id": "4064"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000032.json b/conversations/conv_000032.json
deleted file mode 100644
index a3d16740d21cef517c87c9350173f9f02f29429e..0000000000000000000000000000000000000000
--- a/conversations/conv_000032.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4643041177710083,
-      "duration": 3.4643041177710083,
-      "start_frame": 0,
-      "duration_frames": 55428,
-      "overlap": false,
-      "utterance_id": "1374-133833",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1374-133833.flac |",
-      "real_speaker_id": "1374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.7872462593030605,
-      "end_time": 7.569900745042725,
-      "duration": 3.7826544857396645,
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-      "duration_frames": 60522,
-      "overlap": false,
-      "utterance_id": "5375-40170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40170.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.090425109931465,
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-      "duration": 5.067669160924868,
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-      "duration_frames": 81082,
-      "overlap": false,
-      "utterance_id": "1374-133833",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1374-133833.flac |",
-      "real_speaker_id": "1374",
-      "position_frames": 55428
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.205239101560412,
-      "end_time": 18.47707270135343,
-      "duration": 4.271833599793017,
-      "start_frame": 227283,
-      "duration_frames": 68349,
-      "overlap": false,
-      "utterance_id": "5375-40162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40162.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.9907174367456,
-      "end_time": 23.35716449707077,
-      "duration": 4.366447060325168,
-      "start_frame": 303851,
-      "duration_frames": 69863,
-      "overlap": false,
-      "utterance_id": "167-68704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-68704.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.360621296325775,
-      "end_time": 28.341641025042854,
-      "duration": 4.981019728717079,
-      "start_frame": 373769,
-      "duration_frames": 79696,
-      "overlap": true,
-      "utterance_id": "1374-133833",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1374-133833.flac |",
-      "real_speaker_id": "1374",
-      "position_frames": 136510
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.34336722261348,
-      "end_time": 32.0,
-      "duration": 2.6566327773865197,
-      "start_frame": 469493,
-      "duration_frames": 42506,
-      "overlap": false,
-      "utterance_id": "5375-40169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40169.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "start_time": 7.759078461119812
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
-      "duration": 1.06432560801689,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1374/laugh/0007.wav",
-      "duration": 1.16,
-      "start_time": 13.457664046638904,
-      "speaker_id": "1374"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000035.json b/conversations/conv_000035.json
deleted file mode 100644
index 9c54d2a3ad854d5fe23328c5b3cc42c1bb010d1d..0000000000000000000000000000000000000000
--- a/conversations/conv_000035.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.175880394612029,
-      "duration": 6.175880394612029,
-      "start_frame": 0,
-      "duration_frames": 98814,
-      "overlap": false,
-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.119583844755609,
-      "end_time": 12.463060868811073,
-      "duration": 5.343477024055463,
-      "start_frame": 113913,
-      "duration_frames": 85495,
-      "overlap": false,
-      "utterance_id": "7318-96151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.941481712852887,
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-      "duration": 5.585102134252512,
-      "start_frame": 207063,
-      "duration_frames": 89361,
-      "overlap": true,
-      "utterance_id": "2397-162238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162238.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.96117182281596,
-      "end_time": 22.349582288953926,
-      "duration": 4.388410466137966,
-      "start_frame": 287378,
-      "duration_frames": 70214,
-      "overlap": true,
-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 98814
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.63824820602472,
-      "end_time": 28.788586424764855,
-      "duration": 5.150338218740134,
-      "start_frame": 378211,
-      "duration_frames": 82405,
-      "overlap": false,
-      "utterance_id": "2397-162238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162238.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 89361
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.439909163912834,
-      "end_time": 32.0,
-      "duration": 2.5600908360871664,
-      "start_frame": 471038,
-      "duration_frames": 40961,
-      "overlap": false,
-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 169028
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
-      "duration": 2.4975736961451247,
-      "start_time": 21.004625685327905
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7318/laugh/0057.wav",
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-      "start_time": 7.859160014985565,
-      "speaker_id": "7318"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5445/laugh/0039.wav",
-      "duration": 0.9879480266483072,
-      "start_time": 20.20897854103114,
-      "speaker_id": "5445"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000039.json b/conversations/conv_000039.json
deleted file mode 100644
index 576fb0b202597c0bde760b1b4b026030b925c3a2..0000000000000000000000000000000000000000
--- a/conversations/conv_000039.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.492941364127556,
-      "duration": 4.492941364127556,
-      "start_frame": 0,
-      "duration_frames": 71887,
-      "overlap": false,
-      "utterance_id": "712-123606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.658627960683603,
-      "end_time": 8.685531972477733,
-      "duration": 4.026904011794129,
-      "start_frame": 74538,
-      "duration_frames": 64430,
-      "overlap": false,
-      "utterance_id": "548-126961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.21868290107895,
-      "end_time": 13.42887429501954,
-      "duration": 4.210191393940591,
-      "start_frame": 147498,
-      "duration_frames": 67363,
-      "overlap": false,
-      "utterance_id": "712-123606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 71887
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.325228034997114,
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-      "duration_frames": 94439,
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-      "utterance_id": "548-126959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126959.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.15856522784168,
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-      "real_speaker_id": "5840",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 4.2043275527504775,
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-      "duration_frames": 67269,
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-      "utterance_id": "548-126961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 64430
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
-      "duration": 1.0443083900226757,
-      "start_time": 9.549770105421784
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
-      "duration": 4.2288762986752015,
-      "start_time": 8.827671769566962
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/712/laugh/0040.wav",
-      "duration": 0.5978930843695944,
-      "start_time": 4.50192000480289,
-      "speaker_id": "712"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/548/laugh/0021.wav",
-      "duration": 1.34,
-      "start_time": 6.020496871952974,
-      "speaker_id": "548"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000042.json b/conversations/conv_000042.json
deleted file mode 100644
index 75b373c2cdfba5728483d251909c4ae1d373c753..0000000000000000000000000000000000000000
--- a/conversations/conv_000042.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8197033869505796,
-      "duration": 3.8197033869505796,
-      "start_frame": 0,
-      "duration_frames": 61115,
-      "overlap": false,
-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.304023839027764,
-      "end_time": 8.191586521797225,
-      "duration": 3.8875626827694614,
-      "start_frame": 68864,
-      "duration_frames": 62201,
-      "overlap": false,
-      "utterance_id": "1291-138109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138109.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.812651464686013,
-      "end_time": 14.398388038272941,
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-      "duration_frames": 89371,
-      "overlap": false,
-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.971666042120955,
-      "end_time": 19.08621122762352,
-      "duration": 4.114545185502563,
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-      "overlap": false,
-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 61115
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.162458454735383,
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-      "utterance_id": "1291-138109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138109.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 62201
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.54033359514376,
-      "end_time": 30.920250770064154,
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-      "overlap": false,
-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 89371
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.346650138313468,
-      "end_time": 32.0,
-      "duration": 0.6533498616865323,
-      "start_frame": 501546,
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-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 126947
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1446/laugh/0050.wav",
-      "duration": 0.5369472587194339,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8404/laugh/0024.wav",
-      "duration": 1.32,
-      "start_time": 24.17702104405629,
-      "speaker_id": "8404"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "1446"
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-}
\ No newline at end of file
diff --git a/conversations/conv_000054.json b/conversations/conv_000054.json
deleted file mode 100644
index 241614dae6073aff7f744e75a4cacb2aab1d33b0..0000000000000000000000000000000000000000
--- a/conversations/conv_000054.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "1152-126550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126550.flac |",
-      "real_speaker_id": "1152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.47041318266,
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-      "utterance_id": "7997-111638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111638.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.856398901457982,
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-      "start_frame": 205702,
-      "duration_frames": 109758,
-      "overlap": false,
-      "utterance_id": "7997-111777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111777.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.532815499851605,
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-      "duration_frames": 95638,
-      "overlap": false,
-      "utterance_id": "4948-28002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28002.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.263744373798207,
-      "end_time": 32.0,
-      "duration": 4.7362556262017925,
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-      "utterance_id": "7997-111777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111777.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 109758
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000058.json b/conversations/conv_000058.json
deleted file mode 100644
index 905454018060fb42c54da4f6e6dfd1eda1939b61..0000000000000000000000000000000000000000
--- a/conversations/conv_000058.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.625206122617648,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.336002816647004,
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-      "overlap": false,
-      "utterance_id": "5514-19192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19192.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.9805847650224235,
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-      "utterance_id": "1569-141081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.003803282157524,
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-      "utterance_id": "1569-141081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 50150
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "7147-80028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.95627414637507,
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-      "utterance_id": "7147-80028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 69058
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_000062.json b/conversations/conv_000062.json
deleted file mode 100644
index 620cc9688bf82a3990882a68d2b6e62b249764c8..0000000000000000000000000000000000000000
--- a/conversations/conv_000062.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.62228557914857,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 1,
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-      "duration": 6.949276582300801,
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-      "overlap": false,
-      "utterance_id": "6993-83606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83606.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.954196156038621,
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-      "utterance_id": "7190-90542",
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-      "real_speaker_id": "7190",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.170112374605313,
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-      "start_frame": 226721,
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-      "utterance_id": "1088-134315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134315.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "start_time": 31.253346073273658,
-      "end_time": 31.62228557914857,
-      "duration": 0.36893950587491275,
-      "start_frame": 500053,
-      "duration_frames": 5903,
-      "overlap": true,
-      "utterance_id": "7190-90542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90542.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 174916
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.012322882934864,
-      "start_time": 6.25435735348701
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7190/laugh/0010.wav",
-      "duration": 0.8201608153091436,
-      "start_time": 13.139104899985798,
-      "speaker_id": "7190"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1088/laugh/0043.wav",
-      "duration": 1.2,
-      "start_time": 16.11096737431934,
-      "speaker_id": "1088"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6993/cough/0092.wav",
-      "duration": 0.33669074103700497,
-      "start_time": 22.580332105373913,
-      "speaker_id": "6993"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7190/cough/0093.wav",
-      "duration": 1.4255121891086722,
-      "start_time": 30.574487810891327,
-      "speaker_id": "7190"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7190/laugh/0078.wav",
-      "duration": 1.2107911487117125,
-      "start_time": 30.005447723584968,
-      "speaker_id": "7190"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000065.json b/conversations/conv_000065.json
deleted file mode 100644
index b1aadfd1c92c64926a0e7b37fc6127f93e85c2ce..0000000000000000000000000000000000000000
--- a/conversations/conv_000065.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.158720834434934,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.37891627960732,
-      "duration": 5.37891627960732,
-      "start_frame": 0,
-      "duration_frames": 86062,
-      "overlap": false,
-      "utterance_id": "1353-121397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-121397.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.432260363365722,
-      "end_time": 10.196062072331218,
-      "duration": 3.7638017089654965,
-      "start_frame": 102916,
-      "duration_frames": 60220,
-      "overlap": false,
-      "utterance_id": "4931-28242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28242.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.344081317813707,
-      "end_time": 15.102552335381763,
-      "duration": 4.758471017568055,
-      "start_frame": 165505,
-      "duration_frames": 76135,
-      "overlap": true,
-      "utterance_id": "6670-112764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.260380498081908,
-      "end_time": 20.39308195534599,
-      "duration": 4.132701457264083,
-      "start_frame": 260166,
-      "duration_frames": 66123,
-      "overlap": false,
-      "utterance_id": "4931-28242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28242.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 60220
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.8973679806328,
-      "end_time": 25.650718617902914,
-      "duration": 4.753350637270112,
-      "start_frame": 334357,
-      "duration_frames": 76053,
-      "overlap": false,
-      "utterance_id": "6670-112764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 76135
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.549517585467576,
-      "end_time": 31.158720834434934,
-      "duration": 4.609203248967357,
-      "start_frame": 424792,
-      "duration_frames": 73747,
-      "overlap": false,
-      "utterance_id": "4931-28242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28242.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 126343
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
-      "start_time": 0.9550615406882316
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
-      "duration": 2.5541043083900226,
-      "start_time": 21.678481841957783
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
-      "duration": 0.6348979591836734,
-      "start_time": 14.461364653580056
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4931/laugh/0088.wav",
-      "duration": 1.44,
-      "start_time": 10.308052768995225,
-      "speaker_id": "4931"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6670/cough/0075.wav",
-      "duration": 1.0758658103105212,
-      "start_time": 19.696918167755822,
-      "speaker_id": "6670"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4931/laugh/0071.wav",
-      "duration": 1.1601689748926864,
-      "start_time": 28.082336370286964,
-      "speaker_id": "4931"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000073.json b/conversations/conv_000073.json
deleted file mode 100644
index bfefc1de3053039cdbe1a1b922640adc4475ce1f..0000000000000000000000000000000000000000
--- a/conversations/conv_000073.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration_frames": 74529,
-      "overlap": false,
-      "utterance_id": "561-126312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126312.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.054670310347807,
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-      "utterance_id": "7777-106366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.340954018742782,
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-      "duration_frames": 93213,
-      "overlap": false,
-      "utterance_id": "561-126312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126312.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 74529
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.624970004841565,
-      "end_time": 22.240124814431173,
-      "duration": 3.615154809589609,
-      "start_frame": 297999,
-      "duration_frames": 57842,
-      "overlap": false,
-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.076243833965517,
-      "end_time": 26.08296098400802,
-      "duration": 4.006717150042504,
-      "start_frame": 353219,
-      "duration_frames": 64107,
-      "overlap": true,
-      "utterance_id": "561-126313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126313.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.719628831980827,
-      "end_time": 32.0,
-      "duration": 3.2803711680191725,
-      "start_frame": 459514,
-      "duration_frames": 52485,
-      "overlap": false,
-      "utterance_id": "4290-14526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_11.wav",
-      "duration": 0.31777777777777777,
-      "start_time": 15.803747547912465
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/561/laugh/0057.wav",
-      "duration": 1.075206491212501,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/561/laugh/0079.wav",
-      "duration": 1.52,
-      "start_time": 26.13816675824879,
-      "speaker_id": "561"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4290/cough/0021.wav",
-      "duration": 0.6119005205684303,
-      "start_time": 28.7241160345596,
-      "speaker_id": "4290"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000074.json b/conversations/conv_000074.json
deleted file mode 100644
index ec8efc830734377f3cc0abe53fdcc1963f16bd0f..0000000000000000000000000000000000000000
--- a/conversations/conv_000074.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.248900046880178,
-      "duration": 5.248900046880178,
-      "start_frame": 0,
-      "duration_frames": 83982,
-      "overlap": false,
-      "utterance_id": "7520-258954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.993100155799679,
-      "end_time": 12.475628841396645,
-      "duration": 6.482528685596966,
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-      "duration_frames": 103720,
-      "overlap": false,
-      "utterance_id": "4352-16038",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-16038.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.117486704029133,
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-      "start_frame": 209879,
-      "duration_frames": 94184,
-      "overlap": false,
-      "utterance_id": "7520-258954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 83982
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.39099735636645,
-      "end_time": 24.361448105750295,
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-      "overlap": false,
-      "utterance_id": "412-126975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.600693762492007,
-      "end_time": 29.374951337322056,
-      "duration": 4.774257574830049,
-      "start_frame": 393611,
-      "duration_frames": 76388,
-      "overlap": false,
-      "utterance_id": "7520-258986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.723775404681884,
-      "end_time": 32.0,
-      "duration": 2.2762245953181157,
-      "start_frame": 475580,
-      "duration_frames": 36419,
-      "overlap": false,
-      "utterance_id": "4352-893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-893.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "duration": 1.3349821786334823,
-      "start_time": 0,
-      "speaker_id": "7520"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4352/cough/0088.wav",
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-      "start_time": 12.503965859917464,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4352/laugh/0137.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "4352"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000078.json b/conversations/conv_000078.json
deleted file mode 100644
index 3768e1c870d75c41c923fa64ef12bc05fef7c9c9..0000000000000000000000000000000000000000
--- a/conversations/conv_000078.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.2040994153535727,
-      "duration": 3.2040994153535727,
-      "start_frame": 0,
-      "duration_frames": 51265,
-      "overlap": false,
-      "utterance_id": "3319-173247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-173247.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.405428196874537,
-      "end_time": 8.93121344095247,
-      "duration": 5.525785244077934,
-      "start_frame": 54486,
-      "duration_frames": 88412,
-      "overlap": false,
-      "utterance_id": "1569-141081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.314736445839038,
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-      "start_frame": 149035,
-      "duration_frames": 67204,
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-      "utterance_id": "3319-173247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-173247.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 51265
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "duration": 4.716573150789978,
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-      "utterance_id": "1569-141081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 88412
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.697155370929085,
-      "end_time": 23.938551911459687,
-      "duration": 4.2413965405306016,
-      "start_frame": 315154,
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-      "utterance_id": "2496-156087",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156087.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.222375707034306,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 163877
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.73826629352161,
-      "end_time": 32.0,
-      "duration": 1.2617337064783882,
-      "start_frame": 491812,
-      "duration_frames": 20187,
-      "overlap": false,
-      "utterance_id": "3319-173247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-173247.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 118469
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_000081.json b/conversations/conv_000081.json
deleted file mode 100644
index 1784a92994914e77ced4359dff3c80b04e4caa17..0000000000000000000000000000000000000000
--- a/conversations/conv_000081.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.714879915920953,
-      "duration": 4.714879915920953,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3486-166446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.300248931263618,
-      "end_time": 10.486051010478807,
-      "duration": 5.18580207921519,
-      "start_frame": 84803,
-      "duration_frames": 82972,
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-      "utterance_id": "7408-256039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-256039.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.871699917960166,
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-      "duration": 6.269849267666687,
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-      "duration_frames": 100317,
-      "overlap": true,
-      "utterance_id": "7408-255932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-255932.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.550525757978242,
-      "end_time": 21.29384026241875,
-      "duration": 3.7433145044405083,
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-      "duration_frames": 59893,
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-      "utterance_id": "3486-166424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.927031201397995,
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-      "duration": 4.363490255597329,
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-      "overlap": false,
-      "utterance_id": "3486-166424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 59893
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.242447798045177,
-      "end_time": 32.0,
-      "duration": 4.757552201954823,
-      "start_frame": 435879,
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-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3486/laugh/0060.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "3486"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.5738230828020263,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000097.json b/conversations/conv_000097.json
deleted file mode 100644
index 558c5c8086d6aba5b99616d8cb1fbfd928998bcd..0000000000000000000000000000000000000000
--- a/conversations/conv_000097.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.2978567027571,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2758-161217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-161217.flac |",
-      "real_speaker_id": "2758",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "5906-52158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-52158.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.751568745919712,
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-      "duration_frames": 101680,
-      "overlap": false,
-      "utterance_id": "5906-59283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-59283.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.577632252949783,
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-      "utterance_id": "2758-86039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86039.flac |",
-      "real_speaker_id": "2758",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.04992336842208,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-59283.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 101680
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_000107.json b/conversations/conv_000107.json
deleted file mode 100644
index e09129f35cea134d6bcb5ff2fa3a32163962c030..0000000000000000000000000000000000000000
--- a/conversations/conv_000107.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6553.flac |",
-      "real_speaker_id": "3894",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 83927
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 90433
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7383-95441",
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-      "real_speaker_id": "7383",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6552.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_000111.json b/conversations/conv_000111.json
deleted file mode 100644
index 33e19ec8f7c7506648a6dfffc10ce0411b4474d9..0000000000000000000000000000000000000000
--- a/conversations/conv_000111.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6627-67844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67844.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.198216808780846,
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-      "utterance_id": "7177-120275",
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-      "real_speaker_id": "7177",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6627-67850",
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-    {
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-    {
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.908276383745072,
-      "end_time": 32.0,
-      "duration": 4.091723616254928,
-      "start_frame": 446532,
-      "duration_frames": 65467,
-      "overlap": false,
-      "utterance_id": "6627-67850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 155621
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.35784089319084,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7177/laugh/0044.wav",
-      "duration": 0.7553753261368779,
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-      "speaker_id": "7177"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6627/laugh/0046.wav",
-      "duration": 0.6501216243819635,
-      "start_time": 22.559499330030093,
-      "speaker_id": "6627"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6627/laugh/0005.wav",
-      "duration": 0.922937589546355,
-      "start_time": 29.14249603114192,
-      "speaker_id": "6627"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6627/cough/0040.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "6627"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000120.json b/conversations/conv_000120.json
deleted file mode 100644
index 226e43bb5a818899b311722e24f3044c5111c0ed..0000000000000000000000000000000000000000
--- a/conversations/conv_000120.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.46772345729819,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.376714396315943,
-      "duration": 5.376714396315943,
-      "start_frame": 0,
-      "duration_frames": 86027,
-      "overlap": false,
-      "utterance_id": "6377-34630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34630.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.179136061720685,
-      "end_time": 12.093453552122305,
-      "duration": 5.91431749040162,
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-      "duration_frames": 94629,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.591424032826302,
-      "end_time": 17.67266226785316,
-      "duration": 4.0812382350268575,
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-      "utterance_id": "6377-34619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34619.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.433570919629247,
-      "end_time": 22.864613417918655,
-      "duration": 4.431042498289408,
-      "start_frame": 294937,
-      "duration_frames": 70896,
-      "overlap": false,
-      "utterance_id": "8023-286253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286253.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.405978199338662,
-      "end_time": 27.255350019319714,
-      "duration": 3.8493718199810507,
-      "start_frame": 374495,
-      "duration_frames": 61589,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 94629
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.64435258856998,
-      "end_time": 31.46772345729819,
-      "duration": 3.823370868728211,
-      "start_frame": 442309,
-      "duration_frames": 61173,
-      "overlap": false,
-      "utterance_id": "6377-34619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34619.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 65299
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_15.wav",
-      "duration": 0.5719954648526077,
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
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-      "speaker_id": "8023"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/807/laugh/0019.wav",
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-      "speaker_id": "807"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6377/laugh/0042.wav",
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-      "start_time": 25.898245689014246,
-      "speaker_id": "6377"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000127.json b/conversations/conv_000127.json
deleted file mode 100644
index 12f2ed6e3ab951a984f87e9013de1dd99c2bdb0a..0000000000000000000000000000000000000000
--- a/conversations/conv_000127.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 98111,
-      "overlap": false,
-      "utterance_id": "6978-92936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-92936.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.489199988014662,
-      "end_time": 10.67891002729574,
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-      "utterance_id": "6978-86037",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-86037.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.35012071709857,
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-      "overlap": false,
-      "utterance_id": "6978-92211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-92211.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.750711810212326,
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-      "duration": 5.041566445225871,
-      "start_frame": 268011,
-      "duration_frames": 80665,
-      "overlap": false,
-      "utterance_id": "7708-293973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-293973.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.58295929824604,
-      "end_time": 28.913134604511868,
-      "duration": 6.33017530626583,
-      "start_frame": 361327,
-      "duration_frames": 101282,
-      "overlap": false,
-      "utterance_id": "2361-165622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-165622.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.551530653971007,
-      "end_time": 32.0,
-      "duration": 2.4484693460289932,
-      "start_frame": 472824,
-      "duration_frames": 39175,
-      "overlap": false,
-      "utterance_id": "6978-92936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-92936.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 98111
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6978/laugh/0063.wav",
-      "duration": 1.02,
-      "start_time": 28.51853011508134,
-      "speaker_id": "6978"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000131.json b/conversations/conv_000131.json
deleted file mode 100644
index c01fd95b89d146ea02abae69b75f65ff803c3502..0000000000000000000000000000000000000000
--- a/conversations/conv_000131.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.437293493127751,
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-      "start_frame": 0,
-      "duration_frames": 70996,
-      "overlap": false,
-      "utterance_id": "7338-92154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92154.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.953849251059301,
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-      "duration": 4.462430025372801,
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-      "duration_frames": 71398,
-      "overlap": false,
-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.926172776881682,
-      "end_time": 16.540166454856344,
-      "duration": 5.613993677974662,
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-      "duration_frames": 89823,
-      "overlap": false,
-      "utterance_id": "3214-167607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167607.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.429845071748296,
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-      "start_frame": 278877,
-      "duration_frames": 52878,
-      "overlap": false,
-      "utterance_id": "7338-92139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92139.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.02749967860254,
-      "end_time": 24.947542239498954,
-      "duration": 3.920042560896416,
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-      "duration_frames": 62720,
-      "overlap": false,
-      "utterance_id": "3214-167607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167607.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 89823
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 4.396950658063174,
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-      "duration_frames": 70351,
-      "overlap": false,
-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.091622004224725,
-      "end_time": 32.0,
-      "duration": 0.9083779957752753,
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-      "duration_frames": 14534,
-      "overlap": false,
-      "utterance_id": "3214-167602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167602.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7338/cough/0022.wav",
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-      "speaker_id": "7338"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3214/laugh/0032.wav",
-      "duration": 1.1824831973553893,
-      "start_time": 16.6128372287554,
-      "speaker_id": "3214"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3214/cough/0006.wav",
-      "duration": 1.028380527001337,
-      "start_time": 16.716124105434044,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3214/cough/0069.wav",
-      "duration": 0.8132383819323334,
-      "start_time": 25.087664528649565,
-      "speaker_id": "3214"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000136.json b/conversations/conv_000136.json
deleted file mode 100644
index aee9c352ca6c45a086b816d0020a3b42b197f233..0000000000000000000000000000000000000000
--- a/conversations/conv_000136.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.423839744140008,
-      "duration": 6.423839744140008,
-      "start_frame": 0,
-      "duration_frames": 102781,
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-      "utterance_id": "6685-70976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70976.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.642956845960981,
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-      "utterance_id": "3781-156973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3781-156973.flac |",
-      "real_speaker_id": "3781",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4687-28005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-28005.flac |",
-      "real_speaker_id": "4687",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 20.24283060995884,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "4687-28005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-28005.flac |",
-      "real_speaker_id": "4687",
-      "position_frames": 93626
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.07778686447667,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 66974
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 19.150980357075852,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.7562581736613545,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6685/laugh/0055.wav",
-      "duration": 1.0120828669362059,
-      "start_time": 19.1515949996473,
-      "speaker_id": "6685"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6685/cough/0052.wav",
-      "duration": 0.5441455770132071,
-      "start_time": 22.111811171144318,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6685/laugh/0090.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "6685"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000146.json b/conversations/conv_000146.json
deleted file mode 100644
index ba11f174750a10bf81995864fbd6fce5491d5ecd..0000000000000000000000000000000000000000
--- a/conversations/conv_000146.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.900521930394023,
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-      "start_frame": 0,
-      "duration_frames": 94408,
-      "overlap": false,
-      "utterance_id": "8057-271826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-271826.flac |",
-      "real_speaker_id": "8057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.171450802042399,
-      "end_time": 10.428346261987684,
-      "duration": 4.256895459945286,
-      "start_frame": 98743,
-      "duration_frames": 68110,
-      "overlap": false,
-      "utterance_id": "2769-176256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2769-176256.flac |",
-      "real_speaker_id": "2769",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.097012152260387,
-      "end_time": 14.438256225203293,
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-      "overlap": false,
-      "utterance_id": "8057-296395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-296395.flac |",
-      "real_speaker_id": "8057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.127892870355382,
-      "end_time": 20.68001314264903,
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-      "duration_frames": 88833,
-      "overlap": false,
-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.26853321441076,
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-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 88833
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-271826.flac |",
-      "real_speaker_id": "8057",
-      "position_frames": 94408
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.161572292330234,
-      "end_time": 32.0,
-      "duration": 1.8384277076697657,
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-      "duration_frames": 29414,
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-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 167491
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
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-    {
-      "event_class": "cough",
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-      "duration": 1.0,
-      "start_time": 20.834071695919093,
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-    {
-      "event_class": "laugh",
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000150.json b/conversations/conv_000150.json
deleted file mode 100644
index f9c0c9c6c08f0ad807fc0dcfdb2489cdbb612efd..0000000000000000000000000000000000000000
--- a/conversations/conv_000150.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.744236973082863,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7147-80028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.911487786608119,
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-      "overlap": true,
-      "utterance_id": "4693-28003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4693-28003.flac |",
-      "real_speaker_id": "4693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.738169379520329,
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-      "start_frame": 203810,
-      "duration_frames": 72409,
-      "overlap": false,
-      "utterance_id": "4693-17508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4693-17508.flac |",
-      "real_speaker_id": "4693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "4693-17503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4693-17503.flac |",
-      "real_speaker_id": "4693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.99268472243705,
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-      "overlap": true,
-      "utterance_id": "8148-3956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8148-3956.flac |",
-      "real_speaker_id": "8148",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4693/cough/0109.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_000161.json b/conversations/conv_000161.json
deleted file mode 100644
index 3877dd37ee73b960138db2fa9452b0e322e28cd3..0000000000000000000000000000000000000000
--- a/conversations/conv_000161.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.016486126915783,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3955-181692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-181692.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.566280878994581,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.707958910103892,
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-      "utterance_id": "3955-181687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-181687.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.111539059533428,
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-      "utterance_id": "7226-86964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86964.flac |",
-      "real_speaker_id": "7226",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.29709699311198,
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-      "utterance_id": "7226-86964",
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-      "position_frames": 91834
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "713-291178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/713/laugh/0028.wav",
-      "duration": 1.36,
-      "start_time": 28.96960246440846,
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-}
\ No newline at end of file
diff --git a/conversations/conv_000166.json b/conversations/conv_000166.json
deleted file mode 100644
index 9868f990848e0bb0fadf76960b1c4ed5329584c9..0000000000000000000000000000000000000000
--- a/conversations/conv_000166.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.565137829380234,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.5191579832379585,
-      "duration": 4.5191579832379585,
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-      "overlap": false,
-      "utterance_id": "5649-40567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40567.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.182128923199052,
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-      "utterance_id": "7962-110061",
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-      "real_speaker_id": "7962",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "5649-40563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40563.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 48023
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-      "segment_id": "seg0004",
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-      "start_time": 19.918635577013283,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40563.flac |",
-      "real_speaker_id": "5649",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "laugh",
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-      "speaker_id": "229"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000170.json b/conversations/conv_000170.json
deleted file mode 100644
index e37fc7973cff2f5a7d52ee79f801826f332f0e62..0000000000000000000000000000000000000000
--- a/conversations/conv_000170.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.8690516511312945,
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-      "utterance_id": "6135-41994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41994.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.193930694980758,
-      "end_time": 11.429526482344958,
-      "duration": 6.2355957873642005,
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-      "overlap": true,
-      "utterance_id": "1841-159771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-159771.flac |",
-      "real_speaker_id": "1841",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.790778035837814,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41994.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 93904
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "984-137141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137141.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6135-41995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41995.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.6653407935545,
-      "end_time": 32.0,
-      "duration": 0.33465920644550096,
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-      "utterance_id": "1841-150351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-150351.flac |",
-      "real_speaker_id": "1841",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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\ No newline at end of file
diff --git a/conversations/conv_000177.json b/conversations/conv_000177.json
deleted file mode 100644
index bd09384bf847f8e20c2f53f62bde75c4003065f9..0000000000000000000000000000000000000000
--- a/conversations/conv_000177.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.361485347970394,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-14909.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
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-      "utterance_id": "3290-179163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-179163.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "5082-16015",
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-      "real_speaker_id": "5082",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_000185.json b/conversations/conv_000185.json
deleted file mode 100644
index 46c7e5c93dac9adc0abb4f2dd0407a1a1d50f55b..0000000000000000000000000000000000000000
--- a/conversations/conv_000185.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "791-127519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/791-127519.flac |",
-      "real_speaker_id": "791",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.896940400716623,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 97282
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/791-127519.flac |",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7367-86737",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_000189.json b/conversations/conv_000189.json
deleted file mode 100644
index 9a3cd856598305add8e9729c2c472ec388991322..0000000000000000000000000000000000000000
--- a/conversations/conv_000189.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.537200743473687,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1482-140067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140067.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7155-249840",
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-      "real_speaker_id": "7155",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1482-140072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140072.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "overlap": false,
-      "utterance_id": "4057-12085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-12085.flac |",
-      "real_speaker_id": "4057",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 26.553401360544218,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.546140218487031,
-      "start_time": 6.3193352336203
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4057/laugh/0074.wav",
-      "duration": 0.532996310849644,
-      "start_time": 24.932758874270423,
-      "speaker_id": "4057"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4057/cough/0014.wav",
-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "4057"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000193.json b/conversations/conv_000193.json
deleted file mode 100644
index e498a7b88dc6f3c0048e6f197e2d696f19eed78d..0000000000000000000000000000000000000000
--- a/conversations/conv_000193.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.378288226140986,
-      "duration": 4.378288226140986,
-      "start_frame": 0,
-      "duration_frames": 70052,
-      "overlap": false,
-      "utterance_id": "699-132864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132864.flac |",
-      "real_speaker_id": "699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.7455569614744935,
-      "end_time": 9.745787936905693,
-      "duration": 5.0002309754312,
-      "start_frame": 75928,
-      "duration_frames": 80003,
-      "overlap": false,
-      "utterance_id": "1373-132103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.170935668793437,
-      "end_time": 13.828166245759483,
-      "duration": 3.6572305769660476,
-      "start_frame": 162734,
-      "duration_frames": 58515,
-      "overlap": false,
-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.89989656764029,
-      "end_time": 20.398796571209807,
-      "duration": 5.498900003569517,
-      "start_frame": 238398,
-      "duration_frames": 87982,
-      "overlap": false,
-      "utterance_id": "699-132866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132866.flac |",
-      "real_speaker_id": "699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.934370692344064,
-      "end_time": 25.90525447193447,
-      "duration": 4.9708837795904035,
-      "start_frame": 334949,
-      "duration_frames": 79534,
-      "overlap": false,
-      "utterance_id": "1373-132103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 80003
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.023280381905344,
-      "end_time": 32.0,
-      "duration": 4.976719618094656,
-      "start_frame": 432372,
-      "duration_frames": 79627,
-      "overlap": false,
-      "utterance_id": "699-132866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132866.flac |",
-      "real_speaker_id": "699",
-      "position_frames": 87982
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.833241053396886,
-      "start_time": 8.288230165268514
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/699/cough/0075.wav",
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-      "start_time": 4.440239786405948,
-      "speaker_id": "699"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1373/cough/0008.wav",
-      "duration": 0.4537128804632786,
-      "start_time": 4.170547290174185,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6411/laugh/0066.wav",
-      "duration": 1.162742877486224,
-      "start_time": 13.910144713300513,
-      "speaker_id": "6411"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/699/cough/0080.wav",
-      "duration": 1.3532526289542277,
-      "start_time": 13.490464642912094,
-      "speaker_id": "699"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/699/laugh/0023.wav",
-      "duration": 1.36,
-      "start_time": 29.174265073981452,
-      "speaker_id": "699"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/699/cough/0024.wav",
-      "duration": 0.41114227291347705,
-      "start_time": 26.50778571296593,
-      "speaker_id": "699"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000198.json b/conversations/conv_000198.json
deleted file mode 100644
index 84c68cd417248f7740a1cb0d1d034eafefdbae46..0000000000000000000000000000000000000000
--- a/conversations/conv_000198.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.263108676794715,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.105428180917294,
-      "duration": 5.105428180917294,
-      "start_frame": 0,
-      "duration_frames": 81686,
-      "overlap": false,
-      "utterance_id": "289-121665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121665.flac |",
-      "real_speaker_id": "289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.313663114631671,
-      "end_time": 10.770862610903203,
-      "duration": 5.457199496271532,
-      "start_frame": 85018,
-      "duration_frames": 87315,
-      "overlap": false,
-      "utterance_id": "2598-4662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4662.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.538770039145462,
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-      "duration": 4.471203454996289,
-      "start_frame": 168620,
-      "duration_frames": 71539,
-      "overlap": true,
-      "utterance_id": "289-121652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121652.flac |",
-      "real_speaker_id": "289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.0270068550985,
-      "end_time": 19.819848483537506,
-      "duration": 3.792841628439006,
-      "start_frame": 256432,
-      "duration_frames": 60685,
-      "overlap": false,
-      "utterance_id": "1870-164330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164330.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.482286089777244,
-      "end_time": 25.202016265332862,
-      "duration": 4.719730175555617,
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-      "duration_frames": 75515,
-      "overlap": false,
-      "utterance_id": "289-121665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121665.flac |",
-      "real_speaker_id": "289",
-      "position_frames": 81686
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.86568794175558,
-      "end_time": 30.263108676794715,
-      "duration": 5.397420735039136,
-      "start_frame": 397851,
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-      "overlap": true,
-      "utterance_id": "1870-164330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164330.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 60685
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1870/cough/0049.wav",
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-      "speaker_id": "1870"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000202.json b/conversations/conv_000202.json
deleted file mode 100644
index fc509f84f703fea9b7972cb99e0bab0d79fe2768..0000000000000000000000000000000000000000
--- a/conversations/conv_000202.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.6432196899002784,
-      "duration": 5.6432196899002784,
-      "start_frame": 0,
-      "duration_frames": 90291,
-      "overlap": false,
-      "utterance_id": "1165-135216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135216.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.713214806158947,
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-      "overlap": false,
-      "utterance_id": "2074-147193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-147193.flac |",
-      "real_speaker_id": "2074",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.397151069270734,
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-      "duration": 4.408163085353729,
-      "start_frame": 214354,
-      "duration_frames": 70530,
-      "overlap": false,
-      "utterance_id": "1165-135220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135220.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.024352224613384,
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-      "duration_frames": 75326,
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-      "utterance_id": "1165-135220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135220.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 70530
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "2074-159371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-159371.flac |",
-      "real_speaker_id": "2074",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.482120930278676,
-      "end_time": 32.0,
-      "duration": 1.5178790697213245,
-      "start_frame": 487713,
-      "duration_frames": 24286,
-      "overlap": false,
-      "utterance_id": "2074-147193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-147193.flac |",
-      "real_speaker_id": "2074",
-      "position_frames": 90814
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2074/laugh/0004.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.32,
-      "start_time": 26.766171193801657,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2074/cough/0064.wav",
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-      "start_time": 31.424020853258277,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000209.json b/conversations/conv_000209.json
deleted file mode 100644
index 090ff4644e0fa047278abd52901d057bd0104efd..0000000000000000000000000000000000000000
--- a/conversations/conv_000209.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.473952348743272,
-      "duration": 5.473952348743272,
-      "start_frame": 0,
-      "duration_frames": 87583,
-      "overlap": false,
-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.208055238778783,
-      "end_time": 9.022623493014562,
-      "duration": 3.814568254235779,
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-      "duration_frames": 61033,
-      "overlap": true,
-      "utterance_id": "1463-134465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 87583
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 61033
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1463",
-      "position_frames": 148028
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.423958518289716,
-      "end_time": 32.0,
-      "duration": 2.576041481710284,
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-      "duration_frames": 41216,
-      "overlap": false,
-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 197144
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.76,
-      "start_time": 0.3357556480232044,
-      "speaker_id": "311"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/311/laugh/0058.wav",
-      "duration": 0.7252294497587264,
-      "start_time": 17.195312339105826,
-      "speaker_id": "311"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/311/laugh/0059.wav",
-      "duration": 0.6566277801493434,
-      "start_time": 31.343372219850657,
-      "speaker_id": "311"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000214.json b/conversations/conv_000214.json
deleted file mode 100644
index 603e1a2418fca2f68865b4e93f4b0a23c9e38da6..0000000000000000000000000000000000000000
--- a/conversations/conv_000214.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.285174760935003,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3609631735442242,
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-      "overlap": false,
-      "utterance_id": "359-133630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-133630.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.7324725634661955,
-      "end_time": 9.67570452449265,
-      "duration": 5.943231961026455,
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-      "utterance_id": "1653-142374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142374.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.875188324480936,
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-      "utterance_id": "5570-73847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73847.flac |",
-      "real_speaker_id": "5570",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.077891905911159,
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-      "overlap": false,
-      "utterance_id": "359-128761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.800202998889567,
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-      "duration_frames": 72686,
-      "overlap": false,
-      "utterance_id": "359-133630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-133630.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 53775
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.506368906873895,
-      "end_time": 27.438731130172766,
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-      "start_frame": 376101,
-      "duration_frames": 62917,
-      "overlap": false,
-      "utterance_id": "1653-141272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-141272.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.69990653806867,
-      "end_time": 31.285174760935003,
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-      "duration_frames": 57364,
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-      "utterance_id": "359-128761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 53989
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_000218.json b/conversations/conv_000218.json
deleted file mode 100644
index 250bfe7c6208356385c304bde2b962dc5ed64d03..0000000000000000000000000000000000000000
--- a/conversations/conv_000218.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.793654149780703,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.101014273832477,
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-      "start_frame": 0,
-      "duration_frames": 81616,
-      "overlap": false,
-      "utterance_id": "2943-171001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171001.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.585798156055177,
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-      "duration_frames": 49456,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7238-107675.flac |",
-      "real_speaker_id": "7238",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2943-171000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171000.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.38701133429311,
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-      "duration_frames": 94240,
-      "overlap": false,
-      "utterance_id": "345-1120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.60952434685806,
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-      "utterance_id": "2943-171000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171000.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 54560
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.134576570978872,
-      "end_time": 31.793654149780703,
-      "duration": 6.659077578801831,
-      "start_frame": 402153,
-      "duration_frames": 106545,
-      "overlap": false,
-      "utterance_id": "2943-171000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171000.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 134528
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7238/cough/0130.wav",
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-      "start_time": 4.6320610644857805,
-      "speaker_id": "7238"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/345/laugh/0078.wav",
-      "duration": 1.28,
-      "start_time": 16.612824082755687,
-      "speaker_id": "345"
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-    {
-      "event_class": "cough",
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-      "duration": 0.43313610473219477,
-      "start_time": 12.81043189916758,
-      "speaker_id": "345"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000222.json b/conversations/conv_000222.json
deleted file mode 100644
index 99ef8424fc743a31dbd1aad7c6663f6fb6e65117..0000000000000000000000000000000000000000
--- a/conversations/conv_000222.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4145-14013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-14013.flac |",
-      "real_speaker_id": "4145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.411794611278793,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279764.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.555866201185864,
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-      "overlap": false,
-      "utterance_id": "7594-91192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7594-91192.flac |",
-      "real_speaker_id": "7594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.635157990320522,
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-      "duration": 6.118955717349453,
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-      "duration_frames": 97903,
-      "overlap": false,
-      "utterance_id": "4145-104606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-104606.flac |",
-      "real_speaker_id": "4145",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7594-81881.flac |",
-      "real_speaker_id": "7594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "4145-34497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-34497.flac |",
-      "real_speaker_id": "4145",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4145/cough/0044.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7594/cough/0097.wav",
-      "duration": 1.3106554195595062,
-      "start_time": 9.166071659226372,
-      "speaker_id": "7594"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4145/cough/0032.wav",
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-      "speaker_id": "4145"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7594/cough/0066.wav",
-      "duration": 0.7125165675195428,
-      "start_time": 21.43042981201979,
-      "speaker_id": "7594"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000234.json b/conversations/conv_000234.json
deleted file mode 100644
index 84e7ee268f12be45723718c4879649d596ba1cc6..0000000000000000000000000000000000000000
--- a/conversations/conv_000234.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.341233192230234,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.397278026655377,
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-      "start_frame": 0,
-      "duration_frames": 86356,
-      "overlap": false,
-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8924.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-11266.flac |",
-      "real_speaker_id": "243",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "4474"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3845/laugh/0129.wav",
-      "duration": 1.064937567652092,
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-      "speaker_id": "3845"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4474/laugh/0102.wav",
-      "duration": 1.24,
-      "start_time": 26.811214718484315,
-      "speaker_id": "4474"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000235.json b/conversations/conv_000235.json
deleted file mode 100644
index 4602bc58e063e7011f4b861292c05441eef12836..0000000000000000000000000000000000000000
--- a/conversations/conv_000235.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5628-47240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47240.flac |",
-      "real_speaker_id": "5628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.006014681187844,
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-      "duration": 6.861508639001121,
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-      "utterance_id": "6436-111962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-111962.flac |",
-      "real_speaker_id": "6436",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.771037895595857,
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-      "duration_frames": 105614,
-      "overlap": false,
-      "utterance_id": "1536-138488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1536-138488.flac |",
-      "real_speaker_id": "1536",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.868620192165885,
-      "end_time": 27.276273014165866,
-      "duration": 5.4076528219999815,
-      "start_frame": 349897,
-      "duration_frames": 86522,
-      "overlap": false,
-      "utterance_id": "5628-47241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47241.flac |",
-      "real_speaker_id": "5628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 28.124127147423838,
-      "end_time": 32.0,
-      "duration": 3.875872852576162,
-      "start_frame": 449986,
-      "duration_frames": 62013,
-      "overlap": false,
-      "utterance_id": "1536-141791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1536-141791.flac |",
-      "real_speaker_id": "1536",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.8,
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-      "event_class": "laugh",
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-      "speaker_id": "5628"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000238.json b/conversations/conv_000238.json
deleted file mode 100644
index ca2afe0239940360fdecca3c28f4c7e1d730b1b6..0000000000000000000000000000000000000000
--- a/conversations/conv_000238.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.774098763348146,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5487-4873",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-4873.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5322-7678.flac |",
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-      "utterance_id": "1235-135887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135887.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5322-7678.flac |",
-      "real_speaker_id": "5322",
-      "position_frames": 55686
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1235-135883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135883.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.554957583265246,
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-      "overlap": true,
-      "utterance_id": "5322-7680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5322-7680.flac |",
-      "real_speaker_id": "5322",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1235/cough/0081.wav",
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-      "speaker_id": "1235"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000243.json b/conversations/conv_000243.json
deleted file mode 100644
index 63d55b9b42b33f060493ff355aa397f033814e9a..0000000000000000000000000000000000000000
--- a/conversations/conv_000243.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.631304341681319,
-      "end_time": 10.095933605555379,
-      "duration": 3.4646292638740595,
-      "start_frame": 106100,
-      "duration_frames": 55434,
-      "overlap": false,
-      "utterance_id": "3909-11695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-11695.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 70679,
-      "overlap": false,
-      "utterance_id": "3698-256231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-256231.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.15889173601017,
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-      "duration_frames": 67130,
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-      "utterance_id": "3698-256231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-256231.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 70679
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.95585954548855,
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 97817
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.856591512019637,
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-      "duration_frames": 88989,
-      "overlap": false,
-      "utterance_id": "3698-41990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-41990.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.689704399604636,
-      "end_time": 32.0,
-      "duration": 1.3102956003953636,
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-      "duration_frames": 20964,
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 156287
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3909/cough/0066.wav",
-      "duration": 1.24,
-      "start_time": 7.185738575477738,
-      "speaker_id": "3909"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3698/cough/0090.wav",
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-      "start_time": 20.427821820549116,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1413/laugh/0028.wav",
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-      "start_time": 21.103075230894106,
-      "speaker_id": "1413"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000248.json b/conversations/conv_000248.json
deleted file mode 100644
index fb3b001517620973b4a3fd943bafa4cc0811478a..0000000000000000000000000000000000000000
--- a/conversations/conv_000248.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.9480087482786645,
-      "duration": 3.9480087482786645,
-      "start_frame": 0,
-      "duration_frames": 63168,
-      "overlap": false,
-      "utterance_id": "8414-284674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8414-284674.flac |",
-      "real_speaker_id": "8414",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.634052542283458,
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-      "start_frame": 74144,
-      "duration_frames": 48435,
-      "overlap": false,
-      "utterance_id": "3912-3831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-3831.flac |",
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-      "real_speaker_id": "3912",
-      "position_frames": 48435
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-      "segment_id": "seg0006",
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-      "utterance_id": "2238-121415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-      "speaker_id": "8414"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3912/cough/0130.wav",
-      "duration": 0.88,
-      "start_time": 25.596393915986397,
-      "speaker_id": "3912"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2238/laugh/0038.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "2238"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000255.json b/conversations/conv_000255.json
deleted file mode 100644
index d9a1abac4b9ee71e17aebd595eed8a58ab3e678f..0000000000000000000000000000000000000000
--- a/conversations/conv_000255.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126233.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.193858650737615,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
-      "real_speaker_id": "82",
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-      "overlap": true,
-      "utterance_id": "899-126232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126232.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.256269341718603,
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-      "utterance_id": "82-121544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-121544.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.44854861592799,
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-      "utterance_id": "4931-28242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28242.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 0
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-      "start_time": 30.163220039469852,
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-      "utterance_id": "82-122859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 92304
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "event_class": "Dog",
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-      "start_time": 9.91017249125499
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_000259.json b/conversations/conv_000259.json
deleted file mode 100644
index 385dae08cde84e1fb0ca7574c55745cb2844f89c..0000000000000000000000000000000000000000
--- a/conversations/conv_000259.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "3914-10088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
-      "real_speaker_id": "58",
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-    {
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-      "real_speaker_id": "831",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 156094
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3914-10089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "831-130739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
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-      "position_frames": 57979
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-      "start_time": 17.896219431264942
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_000262.json b/conversations/conv_000262.json
deleted file mode 100644
index 27a360d6084a058960c063192603d7406ef10743..0000000000000000000000000000000000000000
--- a/conversations/conv_000262.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "451-126829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126829.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.595450539776772,
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-      "duration_frames": 61080,
-      "overlap": false,
-      "utterance_id": "4594-902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-902.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.566877628330044,
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-      "duration_frames": 67601,
-      "overlap": false,
-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.867038220980415,
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-      "duration_frames": 85460,
-      "overlap": false,
-      "utterance_id": "451-126826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126826.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.838343818441963,
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-      "utterance_id": "4594-901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-901.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.08760419864864,
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-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 67601
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.80267311470986,
-      "end_time": 32.0,
-      "duration": 3.1973268852901384,
-      "start_frame": 460842,
-      "duration_frames": 51157,
-      "overlap": false,
-      "utterance_id": "4594-902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-902.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 61080
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4594/laugh/0096.wav",
-      "duration": 1.24,
-      "start_time": 4.325279915016002,
-      "speaker_id": "4594"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4594/cough/0060.wav",
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-      "start_time": 5.947911129963005,
-      "speaker_id": "4594"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4594/cough/0088.wav",
-      "duration": 0.9344576027249893,
-      "start_time": 24.424736935545024,
-      "speaker_id": "4594"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000263.json b/conversations/conv_000263.json
deleted file mode 100644
index 5348e99dc86e8322f434bf90924f59e81a9f564f..0000000000000000000000000000000000000000
--- a/conversations/conv_000263.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.10382871785253,
-      "duration": 6.10382871785253,
-      "start_frame": 0,
-      "duration_frames": 97661,
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-      "utterance_id": "6513-67788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-67788.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-67788.flac |",
-      "real_speaker_id": "6513",
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-      "start_time": 16.497299090137286,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71946.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.62888703083902,
-      "end_time": 32.0,
-      "duration": 1.3711129691609791,
-      "start_frame": 490062,
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-      "overlap": false,
-      "utterance_id": "3790-140725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 107083
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 15.843508322794635
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_3.wav",
-      "duration": 1.2866495052279823,
-      "start_time": 4.478905723359389
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6513/laugh/0136.wav",
-      "duration": 1.138533450300726,
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-      "speaker_id": "6513"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2284/laugh/0036.wav",
-      "duration": 0.916488777579761,
-      "start_time": 6.471370039899436,
-      "speaker_id": "2284"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6513/laugh/0008.wav",
-      "duration": 1.2,
-      "start_time": 13.052129222210269,
-      "speaker_id": "6513"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6513/laugh/0141.wav",
-      "duration": 1.32,
-      "start_time": 22.34350358439646,
-      "speaker_id": "6513"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000275.json b/conversations/conv_000275.json
deleted file mode 100644
index 475a2981c009954d46398479147556578ca42cad..0000000000000000000000000000000000000000
--- a/conversations/conv_000275.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.1825230552134425,
-      "duration": 6.1825230552134425,
-      "start_frame": 0,
-      "duration_frames": 98920,
-      "overlap": false,
-      "utterance_id": "1417-1539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.35893387892433,
-      "end_time": 9.401359028094138,
-      "duration": 4.042425149169809,
-      "start_frame": 85742,
-      "duration_frames": 64678,
-      "overlap": true,
-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.552968947420474,
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-      "overlap": false,
-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1417-1539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 98920
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 64678
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.419588402528777,
-      "end_time": 31.12182694243711,
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-      "overlap": false,
-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 80806
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.65756649990056,
-      "end_time": 32.0,
-      "duration": 0.34243350009943896,
-      "start_frame": 506521,
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-      "utterance_id": "1417-1532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1532.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "start_time": 5.419860732665697,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "2735"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000279.json b/conversations/conv_000279.json
deleted file mode 100644
index 981b185f04f0ac46f60de93ca9cfa4523ed77b3e..0000000000000000000000000000000000000000
--- a/conversations/conv_000279.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.953624524733005,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6683-67218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-67218.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 4.113231536945285,
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-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 85027
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 90204
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 4.215448721916967,
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-      "duration_frames": 67447,
-      "overlap": false,
-      "utterance_id": "6683-63841",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-63841.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7654/laugh/0010.wav",
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-      "start_time": 20.8889103545674,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7654/cough/0009.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6003/laugh/0017.wav",
-      "duration": 1.11468571042619,
-      "start_time": 27.530997948897884,
-      "speaker_id": "6003"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000280.json b/conversations/conv_000280.json
deleted file mode 100644
index 630f15431b7f4685d8d545bf18a7f307230e2a04..0000000000000000000000000000000000000000
--- a/conversations/conv_000280.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "end_time": 3.3096013122615093,
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-      "overlap": false,
-      "utterance_id": "5731-50778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50778.flac |",
-      "real_speaker_id": "5731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.453211423669682,
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-      "utterance_id": "2674-155968",
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-      "real_speaker_id": "2674",
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-    {
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-      "utterance_id": "6788-111574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-111574.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50778.flac |",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 56213
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
-      "duration": 0.254421768707483,
-      "start_time": 23.867257090858004
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6788/laugh/0082.wav",
-      "duration": 1.6790046009519426,
-      "start_time": 9.93808215459968,
-      "speaker_id": "6788"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6788/cough/0063.wav",
-      "duration": 1.1705581876215685,
-      "start_time": 25.6339438047257,
-      "speaker_id": "6788"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000296.json b/conversations/conv_000296.json
deleted file mode 100644
index b36d33edab8d84f5ae10e7ab0a05a46a317b7a3b..0000000000000000000000000000000000000000
--- a/conversations/conv_000296.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.258126093798456,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.399407515083051,
-      "duration": 6.399407515083051,
-      "start_frame": 0,
-      "duration_frames": 102390,
-      "overlap": false,
-      "utterance_id": "475-125002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125002.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.723788989509371,
-      "end_time": 13.562540021251438,
-      "duration": 5.838751031742067,
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-      "duration_frames": 93420,
-      "overlap": false,
-      "utterance_id": "7982-110054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-110054.flac |",
-      "real_speaker_id": "7982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.201427102221256,
-      "end_time": 19.33099185027562,
-      "duration": 5.1295647480543645,
-      "start_frame": 227222,
-      "duration_frames": 82073,
-      "overlap": false,
-      "utterance_id": "7009-83683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-83683.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.642132236414838,
-      "end_time": 25.450527711408846,
-      "duration": 5.808395474994006,
-      "start_frame": 314274,
-      "duration_frames": 92934,
-      "overlap": false,
-      "utterance_id": "7009-2331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.15182692011849,
-      "end_time": 31.258126093798456,
-      "duration": 5.106299173679965,
-      "start_frame": 418429,
-      "duration_frames": 81700,
-      "overlap": false,
-      "utterance_id": "7982-245691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-245691.flac |",
-      "real_speaker_id": "7982",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
-      "duration": 2.5680725623582767,
-      "start_time": 16.057230340384624
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7009/laugh/0108.wav",
-      "duration": 1.04,
-      "start_time": 19.4593981835774,
-      "speaker_id": "7009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000306.json b/conversations/conv_000306.json
deleted file mode 100644
index e2bdb82eefa8afa0005524d9b73d638d3513dea6..0000000000000000000000000000000000000000
--- a/conversations/conv_000306.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.175196169612849,
-      "duration": 6.175196169612849,
-      "start_frame": 0,
-      "duration_frames": 98803,
-      "overlap": false,
-      "utterance_id": "5993-19639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19639.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.861859976260492,
-      "end_time": 12.165369734469841,
-      "duration": 5.303509758209349,
-      "start_frame": 109789,
-      "duration_frames": 84856,
-      "overlap": false,
-      "utterance_id": "7843-110055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7843-110055.flac |",
-      "real_speaker_id": "7843",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.500745319301522,
-      "end_time": 16.454097818932546,
-      "duration": 3.9533524996310216,
-      "start_frame": 200011,
-      "duration_frames": 63253,
-      "overlap": false,
-      "utterance_id": "5993-36961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-36961.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.155031371698364,
-      "end_time": 24.04036987305791,
-      "duration": 6.885338501359545,
-      "start_frame": 274480,
-      "duration_frames": 110165,
-      "overlap": false,
-      "utterance_id": "5993-36961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-36961.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 63253
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.310802813773808,
-      "end_time": 30.806798796591927,
-      "duration": 5.495995982818117,
-      "start_frame": 404972,
-      "duration_frames": 87935,
-      "overlap": false,
-      "utterance_id": "8108-280354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280354.flac |",
-      "real_speaker_id": "8108",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.48249260485484,
-      "end_time": 32.0,
-      "duration": 0.5175073951451594,
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-      "duration_frames": 8280,
-      "overlap": false,
-      "utterance_id": "7843-110055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7843-110055.flac |",
-      "real_speaker_id": "7843",
-      "position_frames": 84856
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 12.35316995292247,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7843/laugh/0003.wav",
-      "duration": 0.84,
-      "start_time": 5.8392777337850355,
-      "speaker_id": "7843"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5993/laugh/0083.wav",
-      "duration": 1.6,
-      "start_time": 24.170002120353583,
-      "speaker_id": "5993"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8108/laugh/0079.wav",
-      "duration": 0.6598486092091645,
-      "start_time": 30.92192013353989,
-      "speaker_id": "8108"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000310.json b/conversations/conv_000310.json
deleted file mode 100644
index 61549acee6c0a9fc919c271983829bc21c85c45f..0000000000000000000000000000000000000000
--- a/conversations/conv_000310.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.46941763060955,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.865311968978898,
-      "start_frame": 0,
-      "duration_frames": 93844,
-      "overlap": false,
-      "utterance_id": "5038-56723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-56723.flac |",
-      "real_speaker_id": "5038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.679774486001274,
-      "end_time": 11.476670893105357,
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-      "start_frame": 106876,
-      "duration_frames": 76750,
-      "overlap": false,
-      "utterance_id": "1384-130459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130459.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.40720723273484,
-      "end_time": 16.750524350226748,
-      "duration": 4.3433171174919085,
-      "start_frame": 198515,
-      "duration_frames": 69493,
-      "overlap": false,
-      "utterance_id": "1384-130461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130461.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.41681262400232,
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-      "duration": 3.070089105646461,
-      "start_frame": 278669,
-      "duration_frames": 49121,
-      "overlap": false,
-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.17708694218689,
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-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 49121
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.0465431962279,
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-      "duration_frames": 70765,
-      "overlap": true,
-      "utterance_id": "5038-15789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-15789.flac |",
-      "real_speaker_id": "5038",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-      "start_time": 16.25651629141894
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_000326.json b/conversations/conv_000326.json
deleted file mode 100644
index ecad66edef6c77554c83a900c816ff62cc2c992f..0000000000000000000000000000000000000000
--- a/conversations/conv_000326.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.483068012574076,
-      "duration": 4.483068012574076,
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-      "overlap": false,
-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.212087095327246,
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-      "utterance_id": "1641-130505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130505.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.543889165268931,
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-      "duration_frames": 110978,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 71729
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.131280730289834,
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-      "duration_frames": 91089,
-      "overlap": false,
-      "utterance_id": "1641-130503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130503.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.404870062804047,
-      "end_time": 29.794046703439502,
-      "duration": 4.389176640635454,
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-      "duration_frames": 70226,
-      "overlap": false,
-      "utterance_id": "1641-130503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130503.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 91089
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.64402052871437,
-      "end_time": 32.0,
-      "duration": 1.3559794712856288,
-      "start_frame": 490304,
-      "duration_frames": 21695,
-      "overlap": false,
-      "utterance_id": "3780-177788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177788.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "Dishes",
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-      "duration": 0.2245124716553288,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1641/laugh/0060.wav",
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-      "start_time": 10.972269401590326,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3780/laugh/0022.wav",
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-      "start_time": 30.61770686676481,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3780/cough/0113.wav",
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-      "start_time": 29.195642688538623,
-      "speaker_id": "3780"
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\ No newline at end of file
diff --git a/conversations/conv_000327.json b/conversations/conv_000327.json
deleted file mode 100644
index e59b9a357364402fcd9096f946a1aec33d9ea066..0000000000000000000000000000000000000000
--- a/conversations/conv_000327.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.446493477998612,
-      "duration": 6.446493477998612,
-      "start_frame": 0,
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-      "utterance_id": "593-126928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126928.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.9354500300109745,
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\ No newline at end of file
diff --git a/conversations/conv_000330.json b/conversations/conv_000330.json
deleted file mode 100644
index 86d79f0096d92d30396946f380e04b5cab4998e8..0000000000000000000000000000000000000000
--- a/conversations/conv_000330.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "3008",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_000347.json b/conversations/conv_000347.json
deleted file mode 100644
index e67646f2d609be834d5f290816509b003e593156..0000000000000000000000000000000000000000
--- a/conversations/conv_000347.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_000351.json b/conversations/conv_000351.json
deleted file mode 100644
index 16d559e840e3b4be414dcb63c7a063d5a1d18d4a..0000000000000000000000000000000000000000
--- a/conversations/conv_000351.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
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-      "real_speaker_id": "2598",
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-      "real_speaker_id": "102",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_000367.json b/conversations/conv_000367.json
deleted file mode 100644
index e0426b64dff72e88ba523c8ea1722591e60322c4..0000000000000000000000000000000000000000
--- a/conversations/conv_000367.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "4967",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 105148
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "4967-26520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-26520.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 195770
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.73140151162544,
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-      "duration": 3.268598488374561,
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-      "utterance_id": "4967-28868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-28868.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
-      "duration": 0.5608390022675737,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1717/laugh/0050.wav",
-      "duration": 0.9550974822090847,
-      "start_time": 6.768987776245582,
-      "speaker_id": "1717"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000370.json b/conversations/conv_000370.json
deleted file mode 100644
index 09dd3d81b6ec52cb57ada9a6c50fea7350fa278f..0000000000000000000000000000000000000000
--- a/conversations/conv_000370.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.481056770250962,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.001700946855285,
-      "duration": 6.001700946855285,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5949-54612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-54612.flac |",
-      "real_speaker_id": "5949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.985241565653589,
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-      "duration": 3.0615742640843853,
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-      "duration_frames": 48985,
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-      "utterance_id": "5949-65529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65529.flac |",
-      "real_speaker_id": "5949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.554588410417832,
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-      "duration_frames": 78541,
-      "overlap": false,
-      "utterance_id": "4546-16781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.941644065768006,
-      "end_time": 20.256449175551644,
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-      "overlap": false,
-      "utterance_id": "5290-26685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-26685.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.528194835836793,
-      "end_time": 25.520983535519044,
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-      "start_frame": 328451,
-      "duration_frames": 79884,
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-      "utterance_id": "4546-16781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 78541
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.972978549734513,
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-      "duration": 4.508078220516449,
-      "start_frame": 431567,
-      "duration_frames": 72129,
-      "overlap": false,
-      "utterance_id": "5290-26685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-26685.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 69036
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_000371.json b/conversations/conv_000371.json
deleted file mode 100644
index 15dbdfba2a6006dc89f2ea447f2755ccf6b4588b..0000000000000000000000000000000000000000
--- a/conversations/conv_000371.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.8440180327286,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8195-117382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.0551729412777915,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 104323
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.4375676899864,
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-      "duration": 4.995398268481726,
-      "start_frame": 343001,
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-      "overlap": true,
-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 59428
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.942725473259372,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 181277
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_9.wav",
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-      "duration": 1.2,
-      "start_time": 5.680319107390843,
-      "speaker_id": "2100"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8195/laugh/0094.wav",
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-      "event_class": "cough",
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-      "speaker_id": "1446"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000384.json b/conversations/conv_000384.json
deleted file mode 100644
index d11c632f587880a68e0496d4e4e2123bfa9c5317..0000000000000000000000000000000000000000
--- a/conversations/conv_000384.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.446877589698977,
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-      "start_frame": 0,
-      "duration_frames": 71150,
-      "overlap": false,
-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-120274.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "4005-7262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7262.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 22.442271611621457,
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-      "real_speaker_id": "1098",
-      "position_frames": 71150
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "start_frame": 455443,
-      "duration_frames": 56556,
-      "overlap": false,
-      "utterance_id": "8441-120274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-120274.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 51291
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_5.wav",
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-    {
-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 28.40850470701585,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1098/cough/0062.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8441/laugh/0041.wav",
-      "duration": 1.2,
-      "start_time": 30.057416143184007,
-      "speaker_id": "8441"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000388.json b/conversations/conv_000388.json
deleted file mode 100644
index fdbc300233f6036136d7932f7da85734235a7120..0000000000000000000000000000000000000000
--- a/conversations/conv_000388.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.4667787161661785,
-      "duration": 5.4667787161661785,
-      "start_frame": 0,
-      "duration_frames": 87468,
-      "overlap": false,
-      "utterance_id": "3001-160952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160952.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.182751046819818,
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-      "utterance_id": "7314-93277",
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-      "real_speaker_id": "7314",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_000392.json b/conversations/conv_000392.json
deleted file mode 100644
index 65dcf7789ee99cf218ba71defcaf1167d10177ca..0000000000000000000000000000000000000000
--- a/conversations/conv_000392.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "real_speaker_id": "5772",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-123167.flac |",
-      "real_speaker_id": "192",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32901.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 18.417479554949132,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43331.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128345.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_000404.json b/conversations/conv_000404.json
deleted file mode 100644
index 766ab8d4ebc1baed3ed82188a667bdae274897c7..0000000000000000000000000000000000000000
--- a/conversations/conv_000404.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "3650",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_000408.json b/conversations/conv_000408.json
deleted file mode 100644
index 52ab7e728bbc06db4332e65f9a8c0eaa11eb2335..0000000000000000000000000000000000000000
--- a/conversations/conv_000408.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.559790285694643,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145138.flac |",
-      "real_speaker_id": "3307",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3307",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 103506
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1487-133273",
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\ No newline at end of file
diff --git a/conversations/conv_000412.json b/conversations/conv_000412.json
deleted file mode 100644
index f0dc022ba2db484611b994b355e15a280eb05459..0000000000000000000000000000000000000000
--- a/conversations/conv_000412.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3541-174236",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3541",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.26572311442479,
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-      "duration": 5.251707387433992,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 78229
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3541-174236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174236.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 78572
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.061043741262544,
-      "end_time": 32.0,
-      "duration": 2.9389562587374556,
-      "start_frame": 464976,
-      "duration_frames": 47023,
-      "overlap": false,
-      "utterance_id": "613-132862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-132862.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
-      "duration": 4.978551628403469,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3541/laugh/0145.wav",
-      "duration": 1.32,
-      "start_time": 5.181468323914298,
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "3541"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3541/laugh/0114.wav",
-      "duration": 1.48,
-      "start_time": 17.444506054800136,
-      "speaker_id": "3541"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5918/cough/0033.wav",
-      "duration": 0.45077988635190924,
-      "start_time": 19.96703481053007,
-      "speaker_id": "5918"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3541/laugh/0067.wav",
-      "duration": 1.0405421314263834,
-      "start_time": 22.778850044226875,
-      "speaker_id": "3541"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000423.json b/conversations/conv_000423.json
deleted file mode 100644
index 66f92481f70909d926fb7215c51dfe24fe2825bc..0000000000000000000000000000000000000000
--- a/conversations/conv_000423.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.686835765649481,
-      "duration": 5.686835765649481,
-      "start_frame": 0,
-      "duration_frames": 90989,
-      "overlap": false,
-      "utterance_id": "4434-73957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73957.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.137476596887093,
-      "end_time": 10.326074351214547,
-      "duration": 4.188597754327454,
-      "start_frame": 98199,
-      "duration_frames": 67017,
-      "overlap": false,
-      "utterance_id": "4434-73958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73958.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.033334723546607,
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-      "overlap": false,
-      "utterance_id": "1870-164330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164330.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.18005979217706,
-      "end_time": 19.97869956472476,
-      "duration": 3.7986397725476992,
-      "start_frame": 258880,
-      "duration_frames": 60778,
-      "overlap": false,
-      "utterance_id": "7069-246893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246893.flac |",
-      "real_speaker_id": "7069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.374119925996013,
-      "end_time": 25.14438883816471,
-      "duration": 4.770268912168697,
-      "start_frame": 325985,
-      "duration_frames": 76324,
-      "overlap": false,
-      "utterance_id": "4434-73957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73957.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 90989
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.700273915943228,
-      "end_time": 32.0,
-      "duration": 6.299726084056772,
-      "start_frame": 411204,
-      "duration_frames": 100795,
-      "overlap": false,
-      "utterance_id": "1870-164323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164323.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "1870"
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-      "event_class": "laugh",
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-      "start_time": 20.01837811705213,
-      "speaker_id": "7069"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4434/laugh/0095.wav",
-      "duration": 1.6405444121478285,
-      "start_time": 25.20111594059569,
-      "speaker_id": "4434"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000424.json b/conversations/conv_000424.json
deleted file mode 100644
index 251b40d23ffb0ad6befd91f3b0ad5bd10cee6dd8..0000000000000000000000000000000000000000
--- a/conversations/conv_000424.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1392-135659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135659.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.680783762401354,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-25901.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1392-128226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-128226.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.075291570275112,
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-      "duration_frames": 94288,
-      "overlap": false,
-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.279509417040398,
-      "end_time": 28.94521778552483,
-      "duration": 6.66570836848443,
-      "start_frame": 356472,
-      "duration_frames": 106651,
-      "overlap": false,
-      "utterance_id": "4748-28399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-28399.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.21018429819675,
-      "end_time": 32.0,
-      "duration": 2.7898157018032492,
-      "start_frame": 467362,
-      "duration_frames": 44637,
-      "overlap": false,
-      "utterance_id": "1392-135654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135654.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-      "start_time": 18.30363668536955
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377982.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1392/laugh/0080.wav",
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-      "start_time": 2.0881072087212895,
-      "speaker_id": "1392"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1392/cough/0106.wav",
-      "duration": 0.37675849546438384,
-      "start_time": 5.426667868298395,
-      "speaker_id": "1392"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000428.json b/conversations/conv_000428.json
deleted file mode 100644
index c5821f5924e1edd715ea8186b89f4b12a9ff2e01..0000000000000000000000000000000000000000
--- a/conversations/conv_000428.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.01201624398734,
-      "duration": 4.01201624398734,
-      "start_frame": 0,
-      "duration_frames": 64192,
-      "overlap": false,
-      "utterance_id": "118-124588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-124588.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.1540648723922375,
-      "end_time": 8.065988295355028,
-      "duration": 3.911923422962791,
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-      "duration_frames": 62590,
-      "overlap": false,
-      "utterance_id": "118-47824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.516357571985054,
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-      "start_frame": 136261,
-      "duration_frames": 102157,
-      "overlap": false,
-      "utterance_id": "1283-129808",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-129808.flac |",
-      "real_speaker_id": "1283",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.136171513952515,
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-      "duration_frames": 87157,
-      "overlap": false,
-      "utterance_id": "118-47824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 62590
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.301473619427878,
-      "end_time": 27.002234438732053,
-      "duration": 5.700760819304176,
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-      "duration_frames": 91212,
-      "overlap": false,
-      "utterance_id": "3541-174240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174240.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.408943533624424,
-      "end_time": 32.0,
-      "duration": 4.591056466375576,
-      "start_frame": 438543,
-      "duration_frames": 73456,
-      "overlap": false,
-      "utterance_id": "118-47824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 149747
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
-      "start_time": 17.968859026184248
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/118/laugh/0123.wav",
-      "duration": 1.36,
-      "start_time": 4.0651581371585275,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/118/laugh/0121.wav",
-      "duration": 0.9629850990937487,
-      "start_time": 3.1414149923874897,
-      "speaker_id": "118"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000432.json b/conversations/conv_000432.json
deleted file mode 100644
index de66b99c7f8db2a3dffd8d1f654987c162afa3c2..0000000000000000000000000000000000000000
--- a/conversations/conv_000432.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.590674562651404,
-      "duration": 6.590674562651404,
-      "start_frame": 0,
-      "duration_frames": 105450,
-      "overlap": false,
-      "utterance_id": "4706-18009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-18009.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "1187",
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-      "real_speaker_id": "4706",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136238.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
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-      "real_speaker_id": "4706",
-      "position_frames": 187341
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136238.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 57532
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
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-      "duration": 1.28,
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-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 19.452021493903363,
-      "speaker_id": "1187"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1187/laugh/0100.wav",
-      "duration": 0.8275076698187975,
-      "start_time": 31.172492330181203,
-      "speaker_id": "1187"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000435.json b/conversations/conv_000435.json
deleted file mode 100644
index 7ce3de9253362a787b3a54a2e68f1cdb98220f16..0000000000000000000000000000000000000000
--- a/conversations/conv_000435.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.661214360707866,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.379636488761525,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4993-40688.flac |",
-      "real_speaker_id": "4993",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 69021
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 132055
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.308718851071962,
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-      "utterance_id": "6233-61743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61743.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6233-61741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61741.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.67885716127609,
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-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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\ No newline at end of file
diff --git a/conversations/conv_000445.json b/conversations/conv_000445.json
deleted file mode 100644
index d338f0e219f779359aa4075e8c1519f19d05c811..0000000000000000000000000000000000000000
--- a/conversations/conv_000445.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-24734.flac |",
-      "real_speaker_id": "4863",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 97574
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.08461750593446,
-      "end_time": 24.568875854512335,
-      "duration": 5.4842583485778755,
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-      "utterance_id": "4863-258985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-258985.flac |",
-      "real_speaker_id": "4863",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.173541460552293,
-      "end_time": 32.0,
-      "duration": 6.826458539447707,
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-      "overlap": false,
-      "utterance_id": "3214-167607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167607.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
-      "duration": 4.991497370424078,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4863/cough/0113.wav",
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-    {
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-      "speaker_id": "4863"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000449.json b/conversations/conv_000449.json
deleted file mode 100644
index 505a22a27b6519a3c6179f224d3529360ebe09d7..0000000000000000000000000000000000000000
--- a/conversations/conv_000449.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.339086616208754,
-      "duration": 4.339086616208754,
-      "start_frame": 0,
-      "duration_frames": 69425,
-      "overlap": false,
-      "utterance_id": "4979-26551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26551.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.976635166462805,
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-      "duration_frames": 95085,
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-      "utterance_id": "7055-87276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-87276.flac |",
-      "real_speaker_id": "7055",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4979-26563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26563.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.510953266923078,
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-      "duration": 4.893022450983676,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-87276.flac |",
-      "real_speaker_id": "7055",
-      "position_frames": 95085
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "4979",
-      "position_frames": 69425
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.727275590755387,
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-      "duration_frames": 52363,
-      "overlap": false,
-      "utterance_id": "7055-85634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-85634.flac |",
-      "real_speaker_id": "7055",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_1.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7055/laugh/0054.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7055/laugh/0073.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4979/cough/0031.wav",
-      "duration": 0.8,
-      "start_time": 23.375149072092782,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7055/laugh/0051.wav",
-      "duration": 1.28,
-      "start_time": 29.802758761624858,
-      "speaker_id": "7055"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000453.json b/conversations/conv_000453.json
deleted file mode 100644
index 7f762b757be10456a29bec14e5d1d40ce6dc9412..0000000000000000000000000000000000000000
--- a/conversations/conv_000453.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-44937.flac |",
-      "real_speaker_id": "4358",
-      "position_frames": 65600
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 25.287674829597467,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 154641
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.58458276357056,
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-      "utterance_id": "3798-16984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16984.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "6411"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3798/laugh/0064.wav",
-      "duration": 1.12,
-      "start_time": 30.43438238529001,
-      "speaker_id": "3798"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000462.json b/conversations/conv_000462.json
deleted file mode 100644
index 37f9440f22fee28a921fbe02130c09efc4f9dbfc..0000000000000000000000000000000000000000
--- a/conversations/conv_000462.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.306863554324774,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.422736446691115,
-      "duration": 6.422736446691115,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.2406469175072905,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
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-      "start_time": 12.786272898263466,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
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-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.012757450981766,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 186538
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.59738280734997,
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-      "utterance_id": "26-495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "speaker_id": "26"
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\ No newline at end of file
diff --git a/conversations/conv_000465.json b/conversations/conv_000465.json
deleted file mode 100644
index ab4345be13ee96f2cf84799ba00fd591f596a7bc..0000000000000000000000000000000000000000
--- a/conversations/conv_000465.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3381-9921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111572.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "7073-83692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-83692.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.48801494102126,
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-      "overlap": false,
-      "utterance_id": "3381-9921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
-      "position_frames": 93343
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.97467858668443,
-      "end_time": 27.545034098310378,
-      "duration": 5.570355511625948,
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-      "duration_frames": 89125,
-      "overlap": false,
-      "utterance_id": "7923-258989",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-258989.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.25992169955001,
-      "end_time": 32.0,
-      "duration": 3.7400783004499907,
-      "start_frame": 452158,
-      "duration_frames": 59841,
-      "overlap": false,
-      "utterance_id": "7073-114963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_5.wav",
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-  "paralinguistic_events": [
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-      "start_time": 11.209758647448428,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7923/laugh/0105.wav",
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-      "speaker_id": "7923"
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-}
\ No newline at end of file
diff --git a/conversations/conv_000469.json b/conversations/conv_000469.json
deleted file mode 100644
index 9e30050d5c7a8c1f506d2a52cbc3957bee751d5b..0000000000000000000000000000000000000000
--- a/conversations/conv_000469.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 51747,
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-      "utterance_id": "5886-27508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5886-27508.flac |",
-      "real_speaker_id": "5886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.079022101319883,
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-      "duration_frames": 90010,
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-      "utterance_id": "3792-176660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "5886-27508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5886-27508.flac |",
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-      "position_frames": 51747
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5886-27508.flac |",
-      "real_speaker_id": "5886",
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-    {
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-      "position_frames": 90010
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
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-      "speaker_id": "5886"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000473.json b/conversations/conv_000473.json
deleted file mode 100644
index df4c72ba9e5edf86e9fbb9f5bc4e2f3d8885fed4..0000000000000000000000000000000000000000
--- a/conversations/conv_000473.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-130164.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-3966.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34570.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 19.329404648210996,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-3966.flac |",
-      "real_speaker_id": "8142",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.77219279359974,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-130164.flac |",
-      "real_speaker_id": "1195",
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-      "utterance_id": "8142-276732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-276732.flac |",
-      "real_speaker_id": "8142",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "8142"
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\ No newline at end of file
diff --git a/conversations/conv_000474.json b/conversations/conv_000474.json
deleted file mode 100644
index 34fef8c52ed0e6624f1fa396c6be7b1532bb24bc..0000000000000000000000000000000000000000
--- a/conversations/conv_000474.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
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-      "real_speaker_id": "6550",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53343.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.3004887617922,
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-      "utterance_id": "3063-138652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138652.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_000486.json b/conversations/conv_000486.json
deleted file mode 100644
index 4c8ee1cc78ff1a444c05c505c34f9709c18363b9..0000000000000000000000000000000000000000
--- a/conversations/conv_000486.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7667.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_000490.json b/conversations/conv_000490.json
deleted file mode 100644
index 7e98800a4a30cf6bf775ec610de868e4de400391..0000000000000000000000000000000000000000
--- a/conversations/conv_000490.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5439/laugh/0003.wav",
-      "duration": 0.7627449332273062,
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-      "speaker_id": "5439"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/85/cough/0138.wav",
-      "duration": 1.2909814641385873,
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-      "speaker_id": "85"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 20.52460099764798,
-      "speaker_id": "5439"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000500.json b/conversations/conv_000500.json
deleted file mode 100644
index 13c3ee1e0f09e02c971c9089df10058eeabbed12..0000000000000000000000000000000000000000
--- a/conversations/conv_000500.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0979990290823443,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4484-37119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-37119.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.5158514504214233,
-      "end_time": 9.350882092569321,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1746-143015.flac |",
-      "real_speaker_id": "1746",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.849885162339508,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1746-143015.flac |",
-      "real_speaker_id": "1746",
-      "position_frames": 93360
-    },
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-      "speaker_id": 0,
-      "start_time": 17.76700521848265,
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-      "utterance_id": "8631-283727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.397356839471485,
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-      "duration": 3.1059543564757983,
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-      "utterance_id": "1746-143015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1746-143015.flac |",
-      "real_speaker_id": "1746",
-      "position_frames": 193400
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.672685411070397,
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-      "duration": 3.9004781330294027,
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-      "overlap": false,
-      "utterance_id": "8631-281208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-281208.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.73854194894733,
-      "end_time": 32.0,
-      "duration": 1.2614580510526707,
-      "start_frame": 491816,
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-      "utterance_id": "1746-143015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1746-143015.flac |",
-      "real_speaker_id": "1746",
-      "position_frames": 243095
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 0.5091418163115882,
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-      "speaker_id": "1746"
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\ No newline at end of file
diff --git a/conversations/conv_000516.json b/conversations/conv_000516.json
deleted file mode 100644
index 38b28ee49cbf8dfc707ad2b487b97ae78f3e5001..0000000000000000000000000000000000000000
--- a/conversations/conv_000516.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4262-14486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14486.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-111797.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "4262-14486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14486.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 83714
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4262-14487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14487.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.07335303649373,
-      "end_time": 28.5494111486827,
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-      "overlap": false,
-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.4442033067158,
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-      "duration": 2.5557966932842007,
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-      "overlap": false,
-      "utterance_id": "6065-109178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-109178.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4262/cough/0051.wav",
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-      "start_time": 18.47064535015476,
-      "speaker_id": "4262"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000520.json b/conversations/conv_000520.json
deleted file mode 100644
index 4c43bff6c7bcf9d8710f2c8d00f297f506e2a7ae..0000000000000000000000000000000000000000
--- a/conversations/conv_000520.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1469-168608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-168608.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71946.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "2269-165387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-165387.flac |",
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-      "speaker_id": 1,
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-      "real_speaker_id": "1469",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6513-71944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71944.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.047238222574634,
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-      "utterance_id": "1469-163403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-163403.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 67718
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1469/laugh/0025.wav",
-      "duration": 1.2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_000527.json b/conversations/conv_000527.json
deleted file mode 100644
index 4c42f0321c1a6e017f69829e14574721eee1a58a..0000000000000000000000000000000000000000
--- a/conversations/conv_000527.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8087-118726",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118726.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.97052768700483,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118180.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6540",
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-      "position_frames": 63457
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.941180018082928,
-      "end_time": 32.0,
-      "duration": 4.058819981917072,
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-      "overlap": false,
-      "utterance_id": "816-2301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/816/laugh/0002.wav",
-      "duration": 1.44,
-      "start_time": 6.918607480818045,
-      "speaker_id": "816"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000531.json b/conversations/conv_000531.json
deleted file mode 100644
index 770d87fa966df0dc987f0a104e2a49c12fc73da1..0000000000000000000000000000000000000000
--- a/conversations/conv_000531.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.924466810322872,
-      "duration": 4.924466810322872,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.598715026781361,
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-      "duration_frames": 93528,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-86683.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.148705615480191,
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-      "duration_frames": 92448,
-      "overlap": false,
-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.062642491967544,
-      "end_time": 23.04451223132522,
-      "duration": 4.981869739357678,
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-      "utterance_id": "6553-86683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-86683.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 93528
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.11912135175703,
-      "end_time": 28.480031135726634,
-      "duration": 4.360909783969602,
-      "start_frame": 385905,
-      "duration_frames": 69774,
-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 78791
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.047184917124994,
-      "end_time": 32.0,
-      "duration": 2.9528150828750057,
-      "start_frame": 464754,
-      "duration_frames": 47245,
-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 148565
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.7660084506289513,
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1733/laugh/0076.wav",
-      "duration": 1.64,
-      "start_time": 5.048328619568976,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8531/cough/0012.wav",
-      "duration": 1.2,
-      "start_time": 18.010235681071155,
-      "speaker_id": "8531"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1733/laugh/0044.wav",
-      "duration": 1.3394808485802399,
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-      "speaker_id": "1733"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000536.json b/conversations/conv_000536.json
deleted file mode 100644
index 41951731ff8f6e77d1b6c3794800007b27479916..0000000000000000000000000000000000000000
--- a/conversations/conv_000536.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.501850861466963,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7354-87667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 57153
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "103-1240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1240.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.323724270511457,
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-      "overlap": false,
-      "utterance_id": "7354-87667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 109542
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.019954604296046,
-      "end_time": 24.498378851869155,
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-      "duration_frames": 87654,
-      "overlap": false,
-      "utterance_id": "103-1240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1240.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 91358
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.25227845213287,
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-      "duration": 6.249572409334094,
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-      "utterance_id": "7354-87676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87676.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "7354"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/103/cough/0033.wav",
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-      "speaker_id": "103"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7354/laugh/0018.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7354/cough/0147.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "7354"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000541.json b/conversations/conv_000541.json
deleted file mode 100644
index 5449913497f9dee3adf147309b55317b1d544fd4..0000000000000000000000000000000000000000
--- a/conversations/conv_000541.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.100318209903895,
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-      "start_frame": 0,
-      "duration_frames": 49605,
-      "overlap": false,
-      "utterance_id": "7687-107687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.2230730275319224,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
-      "position_frames": 49605
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "3285-121401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121401.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.84088561652344,
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-      "duration": 6.490062128986954,
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-      "overlap": false,
-      "utterance_id": "7687-107687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
-      "position_frames": 128103
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.84556760712767,
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-      "duration_frames": 71059,
-      "overlap": true,
-      "utterance_id": "3285-121400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121400.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.54376337830287,
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-      "duration": 4.4057616937487865,
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-      "overlap": true,
-      "utterance_id": "3285-121400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121400.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 71059
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.030189869366943,
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-      "duration": 1.969810130633057,
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-      "utterance_id": "7687-107687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
-      "position_frames": 231943
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7687/laugh/0079.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3285/cough/0035.wav",
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-    {
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-      "start_time": 11.85559535572046,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3285/laugh/0079.wav",
-      "duration": 1.12,
-      "start_time": 23.279828655646202,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3285/cough/0107.wav",
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-      "start_time": 23.552822162845573,
-      "speaker_id": "3285"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000557.json b/conversations/conv_000557.json
deleted file mode 100644
index 7acbd388d7f0e42993774dad48eca850e3ea2ad1..0000000000000000000000000000000000000000
--- a/conversations/conv_000557.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.426655219468103,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.972736108484666,
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-      "real_speaker_id": "7843",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110522.flac |",
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-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 160573
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "event_class": "laugh",
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-      "start_time": 30.7340377033743,
-      "speaker_id": "7843"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8028/laugh/0055.wav",
-      "duration": 1.24,
-      "start_time": 28.86134946482633,
-      "speaker_id": "8028"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000561.json b/conversations/conv_000561.json
deleted file mode 100644
index 44894c37ddbd0434035cfc2c7851efb61b9c721b..0000000000000000000000000000000000000000
--- a/conversations/conv_000561.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.732569824504605,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8312734643962125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163436.flac |",
-      "real_speaker_id": "2930",
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-      "position_frames": 0
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-      "utterance_id": "6668-34648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34648.flac |",
-      "real_speaker_id": "6668",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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\ No newline at end of file
diff --git a/conversations/conv_000566.json b/conversations/conv_000566.json
deleted file mode 100644
index f7db68772b9321486933f698d56bf00a3a43944a..0000000000000000000000000000000000000000
--- a/conversations/conv_000566.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 0
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-      "position_frames": 66969
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86814.flac |",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_000570.json b/conversations/conv_000570.json
deleted file mode 100644
index ae40e8f90288d1866995e4ba4e69d9f6cd069a24..0000000000000000000000000000000000000000
--- a/conversations/conv_000570.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6139-58868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58868.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "3001",
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6139/laugh/0003.wav",
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-      "start_time": 17.622741936847895,
-      "speaker_id": "6139"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6139/cough/0098.wav",
-      "duration": 1.1479394218176668,
-      "start_time": 17.5725026308915,
-      "speaker_id": "6139"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000577.json b/conversations/conv_000577.json
deleted file mode 100644
index 049dcde63473e0a5186b7eb223730bc8c199c1f7..0000000000000000000000000000000000000000
--- a/conversations/conv_000577.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.46533341409013,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.932348258175338,
-      "duration": 4.932348258175338,
-      "start_frame": 0,
-      "duration_frames": 78917,
-      "overlap": false,
-      "utterance_id": "2089-133059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-133059.flac |",
-      "real_speaker_id": "2089",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.554817093433126,
-      "end_time": 11.879378629624501,
-      "duration": 6.324561536191374,
-      "start_frame": 88877,
-      "duration_frames": 101192,
-      "overlap": false,
-      "utterance_id": "6284-63091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.284496568926038,
-      "end_time": 16.461791061322657,
-      "duration": 4.177294492396619,
-      "start_frame": 196551,
-      "duration_frames": 66836,
-      "overlap": false,
-      "utterance_id": "2089-133059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-133059.flac |",
-      "real_speaker_id": "2089",
-      "position_frames": 78917
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.908336697021976,
-      "end_time": 21.012346972690374,
-      "duration": 4.104010275668398,
-      "start_frame": 270533,
-      "duration_frames": 65664,
-      "overlap": false,
-      "utterance_id": "6284-63091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 101192
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.45812350580272,
-      "end_time": 27.260193423809277,
-      "duration": 5.802069918006555,
-      "start_frame": 343329,
-      "duration_frames": 92833,
-      "overlap": false,
-      "utterance_id": "8194-89390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.197974559057982,
-      "end_time": 31.46533341409013,
-      "duration": 3.2673588550321453,
-      "start_frame": 451167,
-      "duration_frames": 52277,
-      "overlap": false,
-      "utterance_id": "2089-148996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-148996.flac |",
-      "real_speaker_id": "2089",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 10.843128744223923
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 2.247641723356009,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2089/laugh/0040.wav",
-      "duration": 1.72,
-      "start_time": 0,
-      "speaker_id": "2089"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6284/laugh/0016.wav",
-      "duration": 1.32,
-      "start_time": 15.304020064233942,
-      "speaker_id": "6284"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8194/laugh/0012.wav",
-      "duration": 1.28,
-      "start_time": 27.53540851651304,
-      "speaker_id": "8194"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000582.json b/conversations/conv_000582.json
deleted file mode 100644
index c866644d0eacf743fa04113e22f5769b71e61603..0000000000000000000000000000000000000000
--- a/conversations/conv_000582.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.698998403124693,
-      "duration": 5.698998403124693,
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-      "duration_frames": 91183,
-      "overlap": false,
-      "utterance_id": "1845-147962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-147962.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.402901763354444,
-      "end_time": 12.189041641828869,
-      "duration": 5.786139878474426,
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-      "utterance_id": "6627-67844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67844.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.5526189407886,
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-      "duration": 4.220632521881586,
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-      "duration_frames": 67530,
-      "overlap": false,
-      "utterance_id": "1845-145083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145083.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.867836279378267,
-      "end_time": 23.724346004135604,
-      "duration": 6.856509724757336,
-      "start_frame": 269885,
-      "duration_frames": 109704,
-      "overlap": true,
-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.508837772568157,
-      "end_time": 30.175774408852547,
-      "duration": 5.666936636284391,
-      "start_frame": 392141,
-      "duration_frames": 90670,
-      "overlap": false,
-      "utterance_id": "1845-147962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-147962.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 91183
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.642249247277086,
-      "end_time": 32.0,
-      "duration": 1.3577507527229145,
-      "start_frame": 490275,
-      "duration_frames": 21724,
-      "overlap": false,
-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 109704
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
-      "duration": 3.202230600794093,
-      "start_time": 5.903462668977182
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1845/cough/0099.wav",
-      "duration": 0.32617913029466256,
-      "start_time": 0,
-      "speaker_id": "1845"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1845/cough/0001.wav",
-      "duration": 1.0258897825288262,
-      "start_time": 16.908069777106665,
-      "speaker_id": "1845"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000589.json b/conversations/conv_000589.json
deleted file mode 100644
index b74242d7fb0b3f6f80fa440273a72500d85845c1..0000000000000000000000000000000000000000
--- a/conversations/conv_000589.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.500696435320923,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5951-233090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-233090.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.075229412115968,
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-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.51974419242077,
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-      "duration_frames": 82370,
-      "overlap": true,
-      "utterance_id": "2960-155152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.52167815720607,
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-      "duration_frames": 78560,
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-      "utterance_id": "6378-61780",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61780.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.760381437270695,
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-      "overlap": false,
-      "utterance_id": "2960-155151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155151.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.335411192155284,
-      "end_time": 32.0,
-      "duration": 0.6645888078447157,
-      "start_frame": 501366,
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-      "overlap": false,
-      "utterance_id": "6378-61780",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61780.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 78560
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
-    {
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6378/laugh/0085.wav",
-      "duration": 1.36,
-      "start_time": 20.084172365099295,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2960/laugh/0113.wav",
-      "duration": 1.44,
-      "start_time": 23.102114949059047,
-      "speaker_id": "2960"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6378/laugh/0062.wav",
-      "duration": 1.0384042942219185,
-      "start_time": 30.96159570577808,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6378/cough/0057.wav",
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-      "start_time": 30.653063302700268,
-      "speaker_id": "6378"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000594.json b/conversations/conv_000594.json
deleted file mode 100644
index 83f6cc13b3b646982be668dfc0f6a712d9a2069e..0000000000000000000000000000000000000000
--- a/conversations/conv_000594.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.006644250008039,
-      "duration": 5.006644250008039,
-      "start_frame": 0,
-      "duration_frames": 80106,
-      "overlap": false,
-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.561422612404599,
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-      "utterance_id": "6836-61804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61804.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.55856375443814,
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-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 80106
-    },
-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "6836-76549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-76549.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 69116
-    }
-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "3230"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3230/laugh/0064.wav",
-      "duration": 1.08,
-      "start_time": 29.598297309330917,
-      "speaker_id": "3230"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3230/cough/0076.wav",
-      "duration": 0.7999384420898015,
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-      "speaker_id": "3230"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000598.json b/conversations/conv_000598.json
deleted file mode 100644
index a32d030faf211b65229c5fca32868dbf30dafb02..0000000000000000000000000000000000000000
--- a/conversations/conv_000598.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.475804670201146,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.48654854598283,
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-      "start_frame": 0,
-      "duration_frames": 103784,
-      "overlap": false,
-      "utterance_id": "5379-44344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-44344.flac |",
-      "real_speaker_id": "5379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.03840318518928,
-      "end_time": 12.522090235715813,
-      "duration": 5.483687050526534,
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-      "utterance_id": "5379-15784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-15784.flac |",
-      "real_speaker_id": "5379",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.079180504551864,
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-      "utterance_id": "8776-270778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.179981510504145,
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-      "duration_frames": 83495,
-      "overlap": false,
-      "utterance_id": "5379-15784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-15784.flac |",
-      "real_speaker_id": "5379",
-      "position_frames": 87738
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.7531397024257,
-      "end_time": 28.099479095921353,
-      "duration": 3.3463393934956542,
-      "start_frame": 396050,
-      "duration_frames": 53541,
-      "overlap": false,
-      "utterance_id": "8776-270778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
-      "position_frames": 91182
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.708240086922945,
-      "end_time": 31.475804670201146,
-      "duration": 2.767564583278201,
-      "start_frame": 459331,
-      "duration_frames": 44281,
-      "overlap": true,
-      "utterance_id": "5379-15784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-15784.flac |",
-      "real_speaker_id": "5379",
-      "position_frames": 171233
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5379/laugh/0094.wav",
-      "duration": 1.52,
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-      "speaker_id": "5379"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.84,
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-      "event_class": "laugh",
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-      "duration": 1.32,
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-      "event_class": "cough",
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-      "duration": 0.30356850770735394,
-      "start_time": 31.525775790899772,
-      "speaker_id": "5379"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000605.json b/conversations/conv_000605.json
deleted file mode 100644
index 654fb589668986e19aa3d00de9c96dd1628c93ce..0000000000000000000000000000000000000000
--- a/conversations/conv_000605.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8208-256238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.833950139755702,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "2587-160609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-160609.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.397963295549895,
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-      "overlap": false,
-      "utterance_id": "8208-256238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 85752
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.183838258466444,
-      "end_time": 29.112439845649824,
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-      "overlap": false,
-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 81956
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.76173714353359,
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-      "duration": 2.2382628564664095,
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-      "overlap": false,
-      "utterance_id": "2587-54186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-54186.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 0,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "8208"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000609.json b/conversations/conv_000609.json
deleted file mode 100644
index 49874bcb94f1e2ef2d6963524b97fede539dbbb8..0000000000000000000000000000000000000000
--- a/conversations/conv_000609.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.90937079260849,
-      "start_frame": 0,
-      "duration_frames": 62549,
-      "overlap": false,
-      "utterance_id": "720-173578",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/720-173578.flac |",
-      "real_speaker_id": "720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.212573250270518,
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-      "utterance_id": "1092-134568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134568.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 96067,
-      "overlap": false,
-      "utterance_id": "5671-50486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50486.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.26626705395258,
-      "end_time": 23.996259906353785,
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-      "overlap": false,
-      "utterance_id": "1092-134579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134579.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5671-50454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.346717558833678,
-      "end_time": 32.0,
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-      "start_frame": 469547,
-      "duration_frames": 42452,
-      "overlap": false,
-      "utterance_id": "720-173579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/720-173579.flac |",
-      "real_speaker_id": "720",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1092/laugh/0022.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1092/cough/0114.wav",
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-      "start_time": 16.957687297508556,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5671/laugh/0063.wav",
-      "duration": 0.8977738994178146,
-      "start_time": 26.365415387573748,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/720/laugh/0001.wav",
-      "duration": 1.16,
-      "start_time": 27.95581283350816,
-      "speaker_id": "720"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000613.json b/conversations/conv_000613.json
deleted file mode 100644
index b487ef6b0b6c6b652950f3679580a23d52f41ac5..0000000000000000000000000000000000000000
--- a/conversations/conv_000613.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6123771675080674,
-      "duration": 3.6123771675080674,
-      "start_frame": 0,
-      "duration_frames": 57798,
-      "overlap": false,
-      "utterance_id": "6330-62851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62851.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.74970778285203,
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-      "utterance_id": "2113-132485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132485.flac |",
-      "real_speaker_id": "2113",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.304571726367438,
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-      "duration": 5.855403416568555,
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-      "duration_frames": 93686,
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-      "utterance_id": "6330-62851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62851.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 57798
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-    {
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-      "utterance_id": "2113-132485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132485.flac |",
-      "real_speaker_id": "2113",
-      "position_frames": 99009
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.758106220972778,
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-      "utterance_id": "6330-62851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62851.flac |",
-      "real_speaker_id": "6330",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2113-132484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132484.flac |",
-      "real_speaker_id": "2113",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
-      "duration": 0.21675736961451247,
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2113/laugh/0008.wav",
-      "duration": 0.8468084504336899,
-      "start_time": 31.15319154956631,
-      "speaker_id": "2113"
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-}
\ No newline at end of file
diff --git a/conversations/conv_000618.json b/conversations/conv_000618.json
deleted file mode 100644
index 20b37c55b905fb4d3c89e3b38e7ca83de37e896e..0000000000000000000000000000000000000000
--- a/conversations/conv_000618.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.549610214345528,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5101-40462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5101-40462.flac |",
-      "real_speaker_id": "5101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.187167830333278,
-      "end_time": 10.380882311209405,
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-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 9.940316599485776,
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-      "overlap": true,
-      "utterance_id": "7794-295955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295955.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.887734888748588,
-      "end_time": 21.96147838778933,
-      "duration": 6.073743499040742,
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-      "duration_frames": 97179,
-      "overlap": false,
-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 67099
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.571430607441872,
-      "end_time": 27.678251808576736,
-      "duration": 5.106821201134863,
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-      "duration_frames": 81709,
-      "overlap": false,
-      "utterance_id": "7794-295948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295948.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.202642768577842,
-      "end_time": 32.0,
-      "duration": 3.7973572314221578,
-      "start_frame": 451242,
-      "duration_frames": 60757,
-      "overlap": false,
-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 164278
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "duration": 1.22,
-      "start_time": 22.08852721835737,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7794/laugh/0080.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/576/laugh/0080.wav",
-      "duration": 1.2982197796882855,
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-      "speaker_id": "576"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000625.json b/conversations/conv_000625.json
deleted file mode 100644
index d00bb00690c616ac556af29f28e75d14a77728fc..0000000000000000000000000000000000000000
--- a/conversations/conv_000625.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.020651555431039,
-      "duration": 5.020651555431039,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.552754138695445,
-      "end_time": 12.304335944300636,
-      "duration": 6.751581805605191,
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-      "duration_frames": 108025,
-      "overlap": false,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 80330
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.995466493454671,
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-      "utterance_id": "1347-164338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.596489695107167,
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-      "start_frame": 281543,
-      "duration_frames": 78584,
-      "overlap": false,
-      "utterance_id": "1347-164338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 60306
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.60621515294271,
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-      "overlap": false,
-      "utterance_id": "1347-164338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 138890
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.85667949858717,
-      "end_time": 32.0,
-      "duration": 3.1433205014128305,
-      "start_frame": 461706,
-      "duration_frames": 50293,
-      "overlap": false,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 188355
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1347/cough/0019.wav",
-      "duration": 1.0,
-      "start_time": 16.892211668575623,
-      "speaker_id": "1347"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1347/laugh/0062.wav",
-      "duration": 0.7227428140219836,
-      "start_time": 22.64893757622316,
-      "speaker_id": "1347"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6853/cough/0052.wav",
-      "duration": 1.3410013704161436,
-      "start_time": 30.658998629583856,
-      "speaker_id": "6853"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000629.json b/conversations/conv_000629.json
deleted file mode 100644
index 97ac11a35ddc1b01f94033d70e8278fd2f260297..0000000000000000000000000000000000000000
--- a/conversations/conv_000629.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.943360107806214,
-      "duration": 4.943360107806214,
-      "start_frame": 0,
-      "duration_frames": 79093,
-      "overlap": false,
-      "utterance_id": "8625-211892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-211892.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.730598362383377,
-      "end_time": 12.677776681765893,
-      "duration": 6.947178319382516,
-      "start_frame": 91689,
-      "duration_frames": 111154,
-      "overlap": false,
-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.821347794448743,
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-      "overlap": false,
-      "utterance_id": "8625-211892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-211892.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 79093
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.194831882153345,
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-      "duration": 5.028635676292636,
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-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 111154
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.542587385078473,
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-      "overlap": false,
-      "utterance_id": "8625-268295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-268295.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.031711846258716,
-      "end_time": 32.0,
-      "duration": 2.968288153741284,
-      "start_frame": 464507,
-      "duration_frames": 47492,
-      "overlap": false,
-      "utterance_id": "8625-268295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-268295.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 78785
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 22.46623063748708,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8625/cough/0042.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7208/laugh/0000.wav",
-      "duration": 1.28,
-      "start_time": 4.3058615435035765,
-      "speaker_id": "7208"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7208/laugh/0003.wav",
-      "duration": 0.9233902026397885,
-      "start_time": 23.236465463005636,
-      "speaker_id": "7208"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8625/laugh/0105.wav",
-      "duration": 0.5968994684622855,
-      "start_time": 22.73771211122911,
-      "speaker_id": "8625"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000632.json b/conversations/conv_000632.json
deleted file mode 100644
index 88a4e7d44e27f10e58a3bfeb80c6d1d578d39183..0000000000000000000000000000000000000000
--- a/conversations/conv_000632.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.957184819124275,
-      "duration": 5.957184819124275,
-      "start_frame": 0,
-      "duration_frames": 95314,
-      "overlap": false,
-      "utterance_id": "6459-70120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70120.flac |",
-      "real_speaker_id": "6459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.518520558344616,
-      "end_time": 10.800377629751754,
-      "duration": 4.281857071407138,
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-      "duration_frames": 68509,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7584-101856.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81609.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 61335
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.13219421543583,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70120.flac |",
-      "real_speaker_id": "6459",
-      "position_frames": 95314
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-  "background_events": [
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-      "event_class": "Frying",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 1.2555008594100396,
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-      "duration": 1.44,
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-      "speaker_id": "6459"
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\ No newline at end of file
diff --git a/conversations/conv_000633.json b/conversations/conv_000633.json
deleted file mode 100644
index 58ae0de00778472d4b1e18b4796a62f219803ce2..0000000000000000000000000000000000000000
--- a/conversations/conv_000633.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.979908315918788,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4196-23924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23924.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.001305373079005,
-      "end_time": 7.7865407348036495,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-280362.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23955.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 59059
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "4734-220951",
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-  "background_events": [
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-      "speaker_id": "4196"
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-}
\ No newline at end of file
diff --git a/conversations/conv_000644.json b/conversations/conv_000644.json
deleted file mode 100644
index 0bcf47e8ef6c12c16999af366a33c4c89f9e0d72..0000000000000000000000000000000000000000
--- a/conversations/conv_000644.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "949",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "1054-143005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
-      "real_speaker_id": "1054",
-      "position_frames": 165897
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000648.json b/conversations/conv_000648.json
deleted file mode 100644
index c942ae06b24155fe62fc67d23712ce23c96a59dc..0000000000000000000000000000000000000000
--- a/conversations/conv_000648.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": "472"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000652.json b/conversations/conv_000652.json
deleted file mode 100644
index 4f306e3ffa7ca1e6f714ed2bc780ae4cf34bf101..0000000000000000000000000000000000000000
--- a/conversations/conv_000652.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.644852426295223,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.745639568437529,
-      "duration": 4.745639568437529,
-      "start_frame": 0,
-      "duration_frames": 75930,
-      "overlap": false,
-      "utterance_id": "5092-28465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.04083244055276,
-      "end_time": 9.776402090250567,
-      "duration": 4.735569649697807,
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-      "overlap": false,
-      "utterance_id": "166-126302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-126302.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.620603418544029,
-      "end_time": 14.303326801477144,
-      "duration": 3.6827233829331165,
-      "start_frame": 169929,
-      "duration_frames": 58923,
-      "overlap": false,
-      "utterance_id": "5092-28465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 75930
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.190603395190095,
-      "end_time": 21.750746760950282,
-      "duration": 6.560143365760187,
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-      "duration_frames": 104962,
-      "overlap": false,
-      "utterance_id": "3638-696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.909925310935744,
-      "end_time": 26.114370314901908,
-      "duration": 3.2044450039661645,
-      "start_frame": 366558,
-      "duration_frames": 51271,
-      "overlap": false,
-      "utterance_id": "5092-28465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 134853
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.11128076183141,
-      "end_time": 31.644852426295223,
-      "duration": 5.533571664463814,
-      "start_frame": 417780,
-      "duration_frames": 88537,
-      "overlap": true,
-      "utterance_id": "5092-28465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 186124
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 19.833881301709525,
-      "start_time": 8.656943120182966
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
-      "duration": 0.6519047619047619,
-      "start_time": 24.106327762129588
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3638/cough/0014.wav",
-      "duration": 1.04,
-      "start_time": 21.78343647420345,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5092/cough/0061.wav",
-      "duration": 1.0340708140538672,
-      "start_time": 30.965929185946134,
-      "speaker_id": "5092"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000659.json b/conversations/conv_000659.json
deleted file mode 100644
index 167681b82f0c7cfd8ec7116e332b4b721c6c3687..0000000000000000000000000000000000000000
--- a/conversations/conv_000659.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.736036176695521,
-      "duration": 4.736036176695521,
-      "start_frame": 0,
-      "duration_frames": 75776,
-      "overlap": false,
-      "utterance_id": "2485-143898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-143898.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.8450262832846915,
-      "end_time": 8.690311734286873,
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-      "overlap": true,
-      "utterance_id": "3361-1133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-1133.flac |",
-      "real_speaker_id": "3361",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.4915835367891,
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-      "duration_frames": 65596,
-      "overlap": false,
-      "utterance_id": "2485-151993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-151993.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.258846426911918,
-      "end_time": 19.483997085433916,
-      "duration": 5.225150658521999,
-      "start_frame": 228141,
-      "duration_frames": 83602,
-      "overlap": false,
-      "utterance_id": "2485-151993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-151993.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 65596
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.393446384613014,
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-      "start_frame": 310295,
-      "duration_frames": 83272,
-      "overlap": true,
-      "utterance_id": "3361-1133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-1133.flac |",
-      "real_speaker_id": "3361",
-      "position_frames": 61524
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.775902379708374,
-      "end_time": 29.40238465465791,
-      "duration": 3.626482274949539,
-      "start_frame": 412414,
-      "duration_frames": 58023,
-      "overlap": false,
-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.55006077448344,
-      "end_time": 32.0,
-      "duration": 2.449939225516559,
-      "start_frame": 472800,
-      "duration_frames": 39199,
-      "overlap": false,
-      "utterance_id": "3361-130131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-130131.flac |",
-      "real_speaker_id": "3361",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 1.5074587484437805,
-      "start_time": 12.467562864457786
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2485/cough/0071.wav",
-      "duration": 1.1006718785466267,
-      "start_time": 0,
-      "speaker_id": "2485"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3361/laugh/0041.wav",
-      "duration": 1.28,
-      "start_time": 20.266500037998984,
-      "speaker_id": "3361"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3361/cough/0113.wav",
-      "duration": 0.46199698471636963,
-      "start_time": 29.05907212210559,
-      "speaker_id": "3361"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000664.json b/conversations/conv_000664.json
deleted file mode 100644
index 3c092307edc3cf183d544d6bfe01de8fc5022d9a..0000000000000000000000000000000000000000
--- a/conversations/conv_000664.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2967-4902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4902.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.525646067671662,
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-      "duration": 3.057210771317109,
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-      "overlap": true,
-      "utterance_id": "6060-106611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-106611.flac |",
-      "real_speaker_id": "6060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 66703,
-      "overlap": false,
-      "utterance_id": "2967-4901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4901.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 11.668327461659654,
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-      "overlap": true,
-      "utterance_id": "6784-76152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76152.flac |",
-      "real_speaker_id": "6784",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "6784-76151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76151.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.385402811008127,
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-      "overlap": false,
-      "utterance_id": "6060-106611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-106611.flac |",
-      "real_speaker_id": "6060",
-      "position_frames": 48915
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.068567850579417,
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-      "duration": 1.9314321494205835,
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-      "utterance_id": "2967-4902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4902.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 58505
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2967/laugh/0002.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6784/laugh/0075.wav",
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-      "start_time": 23.010704969503855,
-      "speaker_id": "6784"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000665.json b/conversations/conv_000665.json
deleted file mode 100644
index 94d6abbc752bda529046b09f395bd263f4f66999..0000000000000000000000000000000000000000
--- a/conversations/conv_000665.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.158396270335964,
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-      "overlap": false,
-      "utterance_id": "4344-22232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4344-22232.flac |",
-      "real_speaker_id": "4344",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.206033304562709,
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-      "utterance_id": "216-122441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122441.flac |",
-      "real_speaker_id": "216",
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "4344-53906",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4344-53906.flac |",
-      "real_speaker_id": "4344",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-127369.flac |",
-      "real_speaker_id": "215",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "start_time": 27.765865034683213,
-      "speaker_id": "215"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000668.json b/conversations/conv_000668.json
deleted file mode 100644
index ba8e80427885885a4b17ca0ff33ac5384019750c..0000000000000000000000000000000000000000
--- a/conversations/conv_000668.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.46199902593811,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.562422531440128,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41611.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41619.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.55617460627611,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 91855
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.19657771506005,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41619.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 105662
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-      "speaker_id": "587"
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\ No newline at end of file
diff --git a/conversations/conv_000672.json b/conversations/conv_000672.json
deleted file mode 100644
index 3479f932f926085e313065c8582e52fa5a3c10ec..0000000000000000000000000000000000000000
--- a/conversations/conv_000672.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
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-      "real_speaker_id": "1290",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_000687.json b/conversations/conv_000687.json
deleted file mode 100644
index bf372a59497d423efb900f35085e5faab1d6132c..0000000000000000000000000000000000000000
--- a/conversations/conv_000687.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-132996.flac |",
-      "real_speaker_id": "551",
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-    {
-      "segment_id": "seg0003",
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-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_000691.json b/conversations/conv_000691.json
deleted file mode 100644
index 04a4d947d165953253beb7c9f93d1cf9e2db328b..0000000000000000000000000000000000000000
--- a/conversations/conv_000691.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2294-169656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-169656.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161707.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19188.flac |",
-      "real_speaker_id": "4640",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2294/laugh/0098.wav",
-      "duration": 1.1545229880995076,
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-      "event_class": "cough",
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-      "duration": 1.094898461826779,
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-      "speaker_id": "2294"
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-}
\ No newline at end of file
diff --git a/conversations/conv_000701.json b/conversations/conv_000701.json
deleted file mode 100644
index 3cb5c5d5b674e16a4f0f81ad4bf21788e09f3731..0000000000000000000000000000000000000000
--- a/conversations/conv_000701.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.698310906245123,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.0042590173970654,
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-      "utterance_id": "5448-19209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19209.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.1674624860008795,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.003333254511952,
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-      "utterance_id": "5448-19208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.11313016354476,
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-      "duration": 3.4555804388591476,
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-      "overlap": false,
-      "utterance_id": "764-132272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132272.flac |",
-      "real_speaker_id": "764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.212039630768622,
-      "end_time": 24.730256138280552,
-      "duration": 6.518216507511928,
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-      "duration_frames": 104291,
-      "overlap": false,
-      "utterance_id": "5448-19209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19209.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 48068
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.130025396416926,
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-      "utterance_id": "764-132272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132272.flac |",
-      "real_speaker_id": "764",
-      "position_frames": 55289
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.465867602958497,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132272.flac |",
-      "real_speaker_id": "764",
-      "position_frames": 123437
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5448/laugh/0095.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_000717.json b/conversations/conv_000717.json
deleted file mode 100644
index 745073512ac9720762c9a5f97ef1a88b3b1c6d1a..0000000000000000000000000000000000000000
--- a/conversations/conv_000717.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6308-68359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
-      "real_speaker_id": "6308",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.097609688699907,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 0
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-      "start_time": 8.83459803146171,
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-      "overlap": false,
-      "utterance_id": "17-363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.840452988339399,
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-      "overlap": false,
-      "utterance_id": "17-363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 90057
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.60946296045534,
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-      "duration": 5.081087943970673,
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-      "duration_frames": 81297,
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-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 66479
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.32080359602398,
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-      "utterance_id": "17-362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-      "event_class": "cough",
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-      "duration": 1.32,
-      "start_time": 20.401970353012242,
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\ No newline at end of file
diff --git a/conversations/conv_000720.json b/conversations/conv_000720.json
deleted file mode 100644
index 922a6818b88c5cd72d89d03d167ccaa88ffc24e3..0000000000000000000000000000000000000000
--- a/conversations/conv_000720.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "448-135065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-135065.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.005117810901245,
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-      "utterance_id": "3227-24784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "448-135065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-135065.flac |",
-      "real_speaker_id": "448",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.04427102922146,
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-      "utterance_id": "448-122800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.80338024522672,
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-      "utterance_id": "3227-24784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
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-  "foreground_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/448/cough/0010.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8015/laugh/0013.wav",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_000721.json b/conversations/conv_000721.json
deleted file mode 100644
index fc340cb9522c7d2014bd696c6832b67d63d396f4..0000000000000000000000000000000000000000
--- a/conversations/conv_000721.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3899911473305178,
-      "duration": 3.3899911473305178,
-      "start_frame": 0,
-      "duration_frames": 54239,
-      "overlap": false,
-      "utterance_id": "5910-53143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53143.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5910-53143",
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-      "real_speaker_id": "5910",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8172-281515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281515.flac |",
-      "real_speaker_id": "8172",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-167024.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.328336878802176,
-      "end_time": 32.0,
-      "duration": 3.671663121197824,
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-      "utterance_id": "8172-281515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281515.flac |",
-      "real_speaker_id": "8172",
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 0.8928935465015619,
-      "start_time": 31.10710645349844,
-      "speaker_id": "8172"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000737.json b/conversations/conv_000737.json
deleted file mode 100644
index a2917cb667f19936f7b17bf83a2386c665153485..0000000000000000000000000000000000000000
--- a/conversations/conv_000737.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1938-180290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-180290.flac |",
-      "real_speaker_id": "1938",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 3.8010085005247314,
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-      "utterance_id": "8312-279791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279791.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.548955236158289,
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-      "overlap": false,
-      "utterance_id": "1938-176228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-176228.flac |",
-      "real_speaker_id": "1938",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.10486233211948,
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-      "duration": 5.9716236607701,
-      "start_frame": 289677,
-      "duration_frames": 95545,
-      "overlap": false,
-      "utterance_id": "1938-176228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-176228.flac |",
-      "real_speaker_id": "1938",
-      "position_frames": 89478
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.30960525025999,
-      "end_time": 28.590227792832803,
-      "duration": 4.280622542572811,
-      "start_frame": 388953,
-      "duration_frames": 68489,
-      "overlap": false,
-      "utterance_id": "8312-279791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279791.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 110036
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.76169625057029,
-      "end_time": 32.0,
-      "duration": 3.2383037494297113,
-      "start_frame": 460187,
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-      "utterance_id": "1938-180290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-180290.flac |",
-      "real_speaker_id": "1938",
-      "position_frames": 56898
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 4.156676007530239
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 5.2009729840123065,
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-      "event_class": "cough",
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-      "speaker_id": "1938"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000740.json b/conversations/conv_000740.json
deleted file mode 100644
index c38e79c8886320abdc7b9340a00c5ed6284258c1..0000000000000000000000000000000000000000
--- a/conversations/conv_000740.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.71233199470577,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.287019395481943,
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-      "overlap": false,
-      "utterance_id": "6882-79975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-79975.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22437.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.268518353330007,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-86794.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22436.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.835456235501606,
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-      "utterance_id": "6882-79975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-79975.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 68592
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-      "duration": 1.02,
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-      "speaker_id": "413"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000756.json b/conversations/conv_000756.json
deleted file mode 100644
index a9ed0f2dbc5d79de64dbf2c69a4e4c5b41fc9b08..0000000000000000000000000000000000000000
--- a/conversations/conv_000756.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.567802840451154,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.91378002942875,
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-      "duration_frames": 62620,
-      "overlap": false,
-      "utterance_id": "3119-163519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163519.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.077620843521811,
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-      "utterance_id": "3379-132601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132601.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "3119-163519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163519.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 62620
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132601.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 68793
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3379-132592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3379-132592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 77036
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_5.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3119/laugh/0069.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "3119"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3119/laugh/0080.wav",
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-      "start_time": 8.647828282240154,
-      "speaker_id": "3119"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000760.json b/conversations/conv_000760.json
deleted file mode 100644
index 5d206bf7ee3e994e96b41e9cc99804e6f8d5e347..0000000000000000000000000000000000000000
--- a/conversations/conv_000760.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.3329721567961474,
-      "duration": 4.3329721567961474,
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-      "utterance_id": "4108-12546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-12546.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "911-128684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-128684.flac |",
-      "real_speaker_id": "911",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6009-57643",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57643.flac |",
-      "real_speaker_id": "6009",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-12546.flac |",
-      "real_speaker_id": "4108",
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-}
\ No newline at end of file
diff --git a/conversations/conv_000776.json b/conversations/conv_000776.json
deleted file mode 100644
index 07a45a096b3cab8e8220205dbcfe235e5ea2d0c0..0000000000000000000000000000000000000000
--- a/conversations/conv_000776.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 0
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-      "real_speaker_id": "7383",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 183516
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_000777.json b/conversations/conv_000777.json
deleted file mode 100644
index d05cce4d3fca6e84eea82739ba07e52be6fc8608..0000000000000000000000000000000000000000
--- a/conversations/conv_000777.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19371.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_000783.json b/conversations/conv_000783.json
deleted file mode 100644
index 24d2e6c75109d10b099e8ccd76baafa2283a01fe..0000000000000000000000000000000000000000
--- a/conversations/conv_000783.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": "3928"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7197/laugh/0052.wav",
-      "duration": 1.6,
-      "start_time": 14.172842807467651,
-      "speaker_id": "7197"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6950/cough/0082.wav",
-      "duration": 0.3798699074961308,
-      "start_time": 19.95725559270972,
-      "speaker_id": "6950"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6950/laugh/0010.wav",
-      "duration": 1.34,
-      "start_time": 22.73273365517465,
-      "speaker_id": "6950"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000794.json b/conversations/conv_000794.json
deleted file mode 100644
index 61b2bd6dfd5d218be2bd71309fa5b4f8d4cdd1a2..0000000000000000000000000000000000000000
--- a/conversations/conv_000794.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.271291387896129,
-      "duration": 4.271291387896129,
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-      "overlap": false,
-      "utterance_id": "1463-134463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134463.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.037862329637795,
-      "end_time": 10.58853316087266,
-      "duration": 6.550670831234864,
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-      "utterance_id": "5719-233352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.684961473068856,
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-      "duration": 5.1604107530782075,
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-      "duration_frames": 82566,
-      "overlap": false,
-      "utterance_id": "4156-12155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.272203863983677,
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-      "duration": 4.85335098235618,
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-      "duration_frames": 77653,
-      "overlap": true,
-      "utterance_id": "5719-41217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-41217.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.979941142481888,
-      "end_time": 27.826073334678284,
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-      "start_frame": 367679,
-      "duration_frames": 77538,
-      "overlap": false,
-      "utterance_id": "1463-134465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.052410625911048,
-      "end_time": 32.0,
-      "duration": 3.9475893740889525,
-      "start_frame": 448838,
-      "duration_frames": 63161,
-      "overlap": false,
-      "utterance_id": "5719-233361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233361.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
-      "start_time": 15.49161308363313
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
-      "duration": 1.9068353143007024,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5719/cough/0118.wav",
-      "duration": 0.8540126032807425,
-      "start_time": 10.602945199405703,
-      "speaker_id": "5719"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5719/laugh/0129.wav",
-      "duration": 1.2133330246296072,
-      "start_time": 14.925176254623846,
-      "speaker_id": "5719"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1463/laugh/0107.wav",
-      "duration": 0.9328460788796198,
-      "start_time": 24.007105908944865,
-      "speaker_id": "1463"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000795.json b/conversations/conv_000795.json
deleted file mode 100644
index 00197fe5ea8d22e71c3bed738acd30e69adc5a90..0000000000000000000000000000000000000000
--- a/conversations/conv_000795.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.4589205031119175,
-      "duration": 4.4589205031119175,
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-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.992855556271206,
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-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 71342
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.980278749035516,
-      "end_time": 16.77420535859848,
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-      "duration_frames": 76702,
-      "overlap": false,
-      "utterance_id": "4172-25907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-25907.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.346549214221117,
-      "end_time": 22.38152132029659,
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-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 176945
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.909431243657462,
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-      "duration": 3.242200996258747,
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-      "overlap": false,
-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.278354009715002,
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-      "duration": 3.716996164463982,
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-      "duration_frames": 59471,
-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 257504
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.18586787613813,
-      "end_time": 32.0,
-      "duration": 0.8141321238618708,
-      "start_frame": 498973,
-      "duration_frames": 13026,
-      "overlap": false,
-      "utterance_id": "4172-185480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-185480.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
-      "duration": 1.5361063931740575,
-      "start_time": 17.737211646420725
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
-      "duration": 0.4961451247165533,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/laugh/0108.wav",
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-      "speaker_id": "2676"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/cough/0076.wav",
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-      "start_time": 3.97023564557163,
-      "speaker_id": "2676"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4172/laugh/0042.wav",
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-      "speaker_id": "4172"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/cough/0026.wav",
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-      "start_time": 22.547086721855102,
-      "speaker_id": "2676"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.2510008646362158,
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-      "speaker_id": "4964"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/laugh/0023.wav",
-      "duration": 1.28,
-      "start_time": 28.55147785276528,
-      "speaker_id": "2676"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000798.json b/conversations/conv_000798.json
deleted file mode 100644
index 9feb2fc9d60b864667e407d273445262efad3fc1..0000000000000000000000000000000000000000
--- a/conversations/conv_000798.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "duration": 4.9051708480027525,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6747-76145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76145.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.226292679781054,
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-      "duration_frames": 62701,
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-      "utterance_id": "6747-76145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76145.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 78482
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1298-142233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-142233.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.675422412424158,
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-      "utterance_id": "6747-76101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76101.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.176531310232058,
-      "end_time": 24.523829586491125,
-      "duration": 5.347298276259067,
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-      "duration_frames": 85556,
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-      "utterance_id": "6747-76145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76145.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 141183
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.59628044739435,
-      "end_time": 32.0,
-      "duration": 6.403719552605651,
-      "start_frame": 409540,
-      "duration_frames": 102459,
-      "overlap": false,
-      "utterance_id": "1298-142233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-142233.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 71576
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
-      "duration": 1.0774603174603175,
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1298/laugh/0081.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6747/cough/0032.wav",
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-    },
-    {
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-      "duration": 1.4317553657109618,
-      "start_time": 17.546729506254938,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1298/laugh/0007.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1298/cough/0033.wav",
-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "1298"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000799.json b/conversations/conv_000799.json
deleted file mode 100644
index 1c216cdd303d1c30e4bec2e5af2d448e3201eb6e..0000000000000000000000000000000000000000
--- a/conversations/conv_000799.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "1535-141644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141644.flac |",
-      "real_speaker_id": "1535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8421",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6104-58845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58845.flac |",
-      "real_speaker_id": "6104",
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\ No newline at end of file
diff --git a/conversations/conv_000804.json b/conversations/conv_000804.json
deleted file mode 100644
index 80d1a3c3a70ac840e8f621573b0eef96a3eaced5..0000000000000000000000000000000000000000
--- a/conversations/conv_000804.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "831",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.387967197731207,
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-      "utterance_id": "6818-68772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
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-      "utterance_id": "1259-137770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1259-137770.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_000808.json b/conversations/conv_000808.json
deleted file mode 100644
index 9404438c5052557c886dab5db0abde1a9bab6209..0000000000000000000000000000000000000000
--- a/conversations/conv_000808.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-274756.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 194249
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-      "utterance_id": "7957-39967",
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-      "speaker_id": "7957"
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\ No newline at end of file
diff --git a/conversations/conv_000812.json b/conversations/conv_000812.json
deleted file mode 100644
index 19b1c82b0f28897423f14a9a443040b7807347ad..0000000000000000000000000000000000000000
--- a/conversations/conv_000812.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "3242-67168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3242-67168.flac |",
-      "real_speaker_id": "3242",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3242-67153.flac |",
-      "real_speaker_id": "3242",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "5224",
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-    },
-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "4492-8907",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_000823.json b/conversations/conv_000823.json
deleted file mode 100644
index 4a5a8c9d2e594a9f8234d778cba3cba9fd8ab084..0000000000000000000000000000000000000000
--- a/conversations/conv_000823.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3008-164328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159362.flac |",
-      "real_speaker_id": "3679",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 10.897502537464556,
-      "speaker_id": "3008"
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-      "event_class": "laugh",
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-      "duration": 1.12,
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-      "speaker_id": "3679"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_000824.json b/conversations/conv_000824.json
deleted file mode 100644
index e33465bb0856a3644f9b5e0359fecdc8fab0b3fc..0000000000000000000000000000000000000000
--- a/conversations/conv_000824.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4706-18009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-18009.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.649076224879389,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3934-102415.flac |",
-      "real_speaker_id": "3934",
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-      "utterance_id": "7073-83692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-83692.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.03771977980574,
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-      "overlap": false,
-      "utterance_id": "4706-18009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-18009.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 69946
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.399617926121458,
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-      "overlap": false,
-      "utterance_id": "3934-102413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3934-102413.flac |",
-      "real_speaker_id": "3934",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.2257206838635,
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-      "duration": 2.7742793161365,
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-      "utterance_id": "4706-28495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28495.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_3.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000828.json b/conversations/conv_000828.json
deleted file mode 100644
index 43bff28eebc72015efa0d63ecf37f212481c925f..0000000000000000000000000000000000000000
--- a/conversations/conv_000828.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7463-96494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-96494.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.660962514776591,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159362.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159362.flac |",
-      "real_speaker_id": "3679",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 54180
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.757755459125843,
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-      "utterance_id": "2652-157644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 120055
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-    {
-      "event_class": "cough",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000832.json b/conversations/conv_000832.json
deleted file mode 100644
index 5f5438eeacf67227bbbf31da77ca753e3471d2ab..0000000000000000000000000000000000000000
--- a/conversations/conv_000832.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3179-7142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7142.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.167276649082213,
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-      "utterance_id": "4205-11977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7142.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 84413
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4205-11977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 83662
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3179-7135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7135.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5049/laugh/0094.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3179/cough/0031.wav",
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-      "start_time": 22.15868499455645,
-      "speaker_id": "3179"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000835.json b/conversations/conv_000835.json
deleted file mode 100644
index 1ca99adb0a4ef6648cc052eea22d2248d2f8c40c..0000000000000000000000000000000000000000
--- a/conversations/conv_000835.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.4760625384902895,
-      "duration": 4.4760625384902895,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "915-163370",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163370.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_000845.json b/conversations/conv_000845.json
deleted file mode 100644
index 2725551329959efa0181bf615defcbd8f8f4a744..0000000000000000000000000000000000000000
--- a/conversations/conv_000845.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8242",
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\ No newline at end of file
diff --git a/conversations/conv_000848.json b/conversations/conv_000848.json
deleted file mode 100644
index 506199f0107a38439fbfccb3d443c55312c88a2e..0000000000000000000000000000000000000000
--- a/conversations/conv_000848.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.125,
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-      "segment_id": "seg0007",
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-}
\ No newline at end of file
diff --git a/conversations/conv_000849.json b/conversations/conv_000849.json
deleted file mode 100644
index f4f2026fc05ed0c40527b4b7d39d2cca5d16a917..0000000000000000000000000000000000000000
--- a/conversations/conv_000849.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1556/cough/0050.wav",
-      "duration": 0.7644711098654342,
-      "start_time": 13.65209559337804,
-      "speaker_id": "1556"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4179/cough/0021.wav",
-      "duration": 1.1920873240286918,
-      "start_time": 23.191353145017484,
-      "speaker_id": "4179"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000853.json b/conversations/conv_000853.json
deleted file mode 100644
index 7164311b5a61de417f33d9f89c6a4f71117c78f5..0000000000000000000000000000000000000000
--- a/conversations/conv_000853.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8139791811283117,
-      "duration": 3.8139791811283117,
-      "start_frame": 0,
-      "duration_frames": 61023,
-      "overlap": false,
-      "utterance_id": "5319-84357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-84357.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.175939524200496,
-      "end_time": 8.134509223876393,
-      "duration": 3.958569699675896,
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-      "overlap": false,
-      "utterance_id": "4701-15046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15046.flac |",
-      "real_speaker_id": "4701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.473424954759412,
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-      "overlap": false,
-      "utterance_id": "4959-28865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.922323774498981,
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-      "duration": 5.516321765886969,
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-      "overlap": false,
-      "utterance_id": "4701-15046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15046.flac |",
-      "real_speaker_id": "4701",
-      "position_frames": 63337
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.21032887727767,
-      "end_time": 25.094591291601972,
-      "duration": 3.8842624143243,
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-      "duration_frames": 62148,
-      "overlap": true,
-      "utterance_id": "4959-28865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 82493
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.132344009911264,
-      "end_time": 30.28448456049068,
-      "duration": 4.152140550579413,
-      "start_frame": 418117,
-      "duration_frames": 66434,
-      "overlap": false,
-      "utterance_id": "5319-42637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-42637.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.117158252641616,
-      "end_time": 32.0,
-      "duration": 0.882841747358384,
-      "start_frame": 497874,
-      "duration_frames": 14125,
-      "overlap": false,
-      "utterance_id": "5319-84357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-84357.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 61023
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 14.31471412882508,
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
-      "duration": 2.1073469387755104,
-      "start_time": 2.982764795890678
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-    {
-      "event_class": "Vacuum_cleaner",
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-      "start_time": 16.352132249988863
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4701/cough/0004.wav",
-      "duration": 1.1,
-      "start_time": 20.53631312365087,
-      "speaker_id": "4701"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4959/cough/0029.wav",
-      "duration": 0.7848117844752192,
-      "start_time": 20.24408712990435,
-      "speaker_id": "4959"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000858.json b/conversations/conv_000858.json
deleted file mode 100644
index 258fc3b5b0a0130b3c1ed9cb34e3668699c4db1b..0000000000000000000000000000000000000000
--- a/conversations/conv_000858.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.940440915232976,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.360962798938189,
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-      "start_frame": 0,
-      "duration_frames": 69775,
-      "overlap": false,
-      "utterance_id": "318-124224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.740810067360636,
-      "end_time": 11.295595833405343,
-      "duration": 6.5547857660447075,
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-      "overlap": false,
-      "utterance_id": "4836-26485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.058467120840287,
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-      "duration": 3.537037192606859,
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-      "duration_frames": 56592,
-      "overlap": false,
-      "utterance_id": "6006-60489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60489.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.00880359480989,
-      "end_time": 20.886010953007766,
-      "duration": 4.877207358197875,
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-      "duration_frames": 78035,
-      "overlap": false,
-      "utterance_id": "318-124164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124164.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.1012541588006,
-      "end_time": 26.784656044934014,
-      "duration": 5.683401886133414,
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-      "duration_frames": 90934,
-      "overlap": false,
-      "utterance_id": "318-124224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 69775
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.13298854543823,
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-      "duration": 4.8074523697947456,
-      "start_frame": 434127,
-      "duration_frames": 76919,
-      "overlap": false,
-      "utterance_id": "4836-26485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 104876
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 16.386652402869757,
-      "start_time": 14.73776056637424
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_0.wav",
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-      "start_time": 3.044398529801191
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
-      "duration": 4.733809762693113,
-      "start_time": 8.528750251952976
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/318/laugh/0034.wav",
-      "duration": 0.8520464664143683,
-      "start_time": 2.7742943286540913,
-      "speaker_id": "318"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6006/cough/0039.wav",
-      "duration": 1.1679466617607996,
-      "start_time": 10.73365222052922,
-      "speaker_id": "6006"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/318/laugh/0103.wav",
-      "duration": 0.7196763403143747,
-      "start_time": 25.635643015034287,
-      "speaker_id": "318"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4836/laugh/0064.wav",
-      "duration": 0.6322361774715954,
-      "start_time": 26.41918866074652,
-      "speaker_id": "4836"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000862.json b/conversations/conv_000862.json
deleted file mode 100644
index a1b234e54dcd0478c813dea3d2a4ddf7ad2ab5b7..0000000000000000000000000000000000000000
--- a/conversations/conv_000862.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3261-154309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.80893401909039,
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-      "duration_frames": 83918,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.881243937488048,
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-      "overlap": false,
-      "utterance_id": "5141-26943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26943.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.77061865982575,
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-      "overlap": true,
-      "utterance_id": "1473-135657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 83918
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.381027100234377,
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-      "utterance_id": "3261-154309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 73195
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.347978546875098,
-      "end_time": 32.0,
-      "duration": 2.6520214531249025,
-      "start_frame": 469567,
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-      "overlap": false,
-      "utterance_id": "5141-26932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26932.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1473/cough/0100.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5141/laugh/0140.wav",
-      "duration": 1.8,
-      "start_time": 11.76483914423616,
-      "speaker_id": "5141"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1473/laugh/0011.wav",
-      "duration": 1.2,
-      "start_time": 15.42979024984527,
-      "speaker_id": "1473"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1473/cough/0073.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3261/laugh/0049.wav",
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-      "start_time": 23.66025190317835,
-      "speaker_id": "3261"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000865.json b/conversations/conv_000865.json
deleted file mode 100644
index 9c975f2f0598307bde40906a4be416916221585c..0000000000000000000000000000000000000000
--- a/conversations/conv_000865.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1923-155646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-155646.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1923",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161975.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
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-      "start_time": 22.20640500717258,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161972.flac |",
-      "real_speaker_id": "1923",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_000869.json b/conversations/conv_000869.json
deleted file mode 100644
index 63c95010282a46145559017cf341d80ea7f1f49d..0000000000000000000000000000000000000000
--- a/conversations/conv_000869.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.863368542289475,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.976543930278104,
-      "duration": 6.976543930278104,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1348-135832",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1348-135832.flac |",
-      "real_speaker_id": "1348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.979460769468364,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-50266.flac |",
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-      "position_frames": 0
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-      "utterance_id": "5756-305216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-305216.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.420488534625495,
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-      "duration_frames": 91077,
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-      "utterance_id": "5756-305216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-305216.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 67300
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.393082451573953,
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-      "utterance_id": "8152-282985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-282985.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.082889491123446,
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-      "duration_frames": 76487,
-      "overlap": false,
-      "utterance_id": "1348-135826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1348-135826.flac |",
-      "real_speaker_id": "1348",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_000873.json b/conversations/conv_000873.json
deleted file mode 100644
index 927f6de11ed5b686ee043ed91a62f504d993d3d5..0000000000000000000000000000000000000000
--- a/conversations/conv_000873.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "204-162375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-162375.flac |",
-      "real_speaker_id": "204",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-146197.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-162375.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-287139.flac |",
-      "real_speaker_id": "204",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "event_class": "laugh",
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-      "duration": 1.2812252811088671,
-      "start_time": 23.91449946849016,
-      "speaker_id": "845"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000874.json b/conversations/conv_000874.json
deleted file mode 100644
index 98c010169a2e2053ce24e2f64850615871cdb3cb..0000000000000000000000000000000000000000
--- a/conversations/conv_000874.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "3703-71531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 75479
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1154-134886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134886.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.30063506215215,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134886.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 103092
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.3456060850973692,
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-      "utterance_id": "3703-71550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71550.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "duration": 1.44,
-      "start_time": 30.104926770146676,
-      "speaker_id": "3703"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000886.json b/conversations/conv_000886.json
deleted file mode 100644
index 8693f95a53c6ab47171c0c146e3d179128206cf5..0000000000000000000000000000000000000000
--- a/conversations/conv_000886.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "end_time": 3.4459086444871523,
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-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3238-134398",
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-      "real_speaker_id": "3238",
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-      "real_speaker_id": "49",
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-      "speaker_id": 0,
-      "start_time": 16.996580221908193,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 85926
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.57721503751726,
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-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.233247616217767,
-      "end_time": 32.0,
-      "duration": 4.766752383782233,
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-      "duration_frames": 76268,
-      "overlap": false,
-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 148943
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3238/cough/0034.wav",
-      "duration": 0.5424731883479941,
-      "start_time": 20.985135259699458,
-      "speaker_id": "3238"
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-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 26.94825151786035,
-      "speaker_id": "6685"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000890.json b/conversations/conv_000890.json
deleted file mode 100644
index 313834c97b4c20dd9a5ac4e9eb3225f49e6f1b5a..0000000000000000000000000000000000000000
--- a/conversations/conv_000890.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.643467639061201,
-      "duration": 6.643467639061201,
-      "start_frame": 0,
-      "duration_frames": 106295,
-      "overlap": false,
-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.927489524351018,
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-      "utterance_id": "3926-174988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-174988.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.406645198536676,
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-      "duration": 6.410201113049995,
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-      "duration_frames": 102563,
-      "overlap": false,
-      "utterance_id": "5772-43331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43331.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.96481188941876,
-      "end_time": 23.610560537575083,
-      "duration": 4.645748648156326,
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-      "duration_frames": 74331,
-      "overlap": false,
-      "utterance_id": "3926-891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-891.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.74767376026238,
-      "end_time": 28.609240170488235,
-      "duration": 4.861566410225857,
-      "start_frame": 379962,
-      "duration_frames": 77785,
-      "overlap": false,
-      "utterance_id": "5772-43331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43331.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 102563
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.134586661778258,
-      "end_time": 32.0,
-      "duration": 2.8654133382217424,
-      "start_frame": 466153,
-      "duration_frames": 45846,
-      "overlap": false,
-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 106295
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "speaker_id": "3926"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000900.json b/conversations/conv_000900.json
deleted file mode 100644
index d087a896546715f0e9dbb8c2364aa72026f5ae54..0000000000000000000000000000000000000000
--- a/conversations/conv_000900.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 98845
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-      "segment_id": "seg0002",
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-      "utterance_id": "1874-143361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-143361.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.152879220304413,
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-      "utterance_id": "5913-40745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
-      "real_speaker_id": "5913",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.967409731090182,
-      "end_time": 28.864652359224266,
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-      "duration_frames": 94355,
-      "overlap": true,
-      "utterance_id": "1874-89898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-89898.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.10476662611874,
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-      "utterance_id": "1874-165702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-165702.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 25.83918918143066,
-      "speaker_id": "1874"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1874/laugh/0028.wav",
-      "duration": 1.030102858191866,
-      "start_time": 28.94006590113686,
-      "speaker_id": "1874"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000916.json b/conversations/conv_000916.json
deleted file mode 100644
index 4225ee67b521d71a7c3d653c9c27670611c6d186..0000000000000000000000000000000000000000
--- a/conversations/conv_000916.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.3655295496425,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.829053030491554,
-      "duration": 4.829053030491554,
-      "start_frame": 0,
-      "duration_frames": 77264,
-      "overlap": false,
-      "utterance_id": "8494-244443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244443.flac |",
-      "real_speaker_id": "8494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.514072119701421,
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-      "utterance_id": "453-129306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-129306.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.060900585378626,
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-      "utterance_id": "8494-244443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244443.flac |",
-      "real_speaker_id": "8494",
-      "position_frames": 77264
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "3370-724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-724.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 21.095985201658788,
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-      "utterance_id": "453-131332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-131332.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.01713943632369,
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-      "overlap": false,
-      "utterance_id": "3370-756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-756.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3370/laugh/0102.wav",
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-      "start_time": 30.44,
-      "speaker_id": "3370"
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-}
\ No newline at end of file
diff --git a/conversations/conv_000920.json b/conversations/conv_000920.json
deleted file mode 100644
index 1bdeec5af2cb4500418706e0ccdd1f81036f8a22..0000000000000000000000000000000000000000
--- a/conversations/conv_000920.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.500316558341647,
-      "duration": 5.500316558341647,
-      "start_frame": 0,
-      "duration_frames": 88005,
-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.73900667928716,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110705.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 88005
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-246932.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.73174950340963,
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-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 148557
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.76370870085754,
-      "end_time": 32.0,
-      "duration": 2.2362912991424615,
-      "start_frame": 476219,
-      "duration_frames": 35780,
-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 248586
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8975/cough/0112.wav",
-      "duration": 0.6640132571261901,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7868/laugh/0057.wav",
-      "duration": 1.28,
-      "start_time": 11.621029358966565,
-      "speaker_id": "7868"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7868/laugh/0110.wav",
-      "duration": 1.24,
-      "start_time": 22.542019508298313,
-      "speaker_id": "7868"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8975/laugh/0053.wav",
-      "duration": 1.04,
-      "start_time": 29.083370348279097,
-      "speaker_id": "8975"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000927.json b/conversations/conv_000927.json
deleted file mode 100644
index 7c3df6588c962e146ab14c64b4ec09ed5d468bad..0000000000000000000000000000000000000000
--- a/conversations/conv_000927.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.989384962049444,
-      "duration": 3.989384962049444,
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-      "duration_frames": 63830,
-      "overlap": false,
-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.038435997880599,
-      "end_time": 11.297197178664737,
-      "duration": 6.258761180784138,
-      "start_frame": 80614,
-      "duration_frames": 100140,
-      "overlap": false,
-      "utterance_id": "596-127685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.169967543543457,
-      "end_time": 18.134794059249913,
-      "duration": 5.964826515706455,
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-      "duration_frames": 95437,
-      "overlap": false,
-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 63830
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.423988048651374,
-      "end_time": 22.732369464066785,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 159267
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.398771111614476,
-      "end_time": 27.64693736207182,
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-      "utterance_id": "596-139612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-139612.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.816071584300698,
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-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 228201
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/278/laugh/0054.wav",
-      "duration": 0.8091843585522915,
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-      "speaker_id": "278"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "278"
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 18.259254008299738,
-      "speaker_id": "278"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/596/laugh/0025.wav",
-      "duration": 1.0425134666396434,
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-      "speaker_id": "596"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/596/cough/0055.wav",
-      "duration": 0.8592653837811499,
-      "start_time": 27.778514656396666,
-      "speaker_id": "596"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/278/laugh/0050.wav",
-      "duration": 1.848978873341611,
-      "start_time": 30.15102112665839,
-      "speaker_id": "278"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000931.json b/conversations/conv_000931.json
deleted file mode 100644
index 7fccd14b60b63d3df4d8402bce6fe828f12d20ac..0000000000000000000000000000000000000000
--- a/conversations/conv_000931.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.52533424063468,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.042267502680323,
-      "end_time": 8.69537024147025,
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-      "overlap": false,
-      "utterance_id": "6749-53256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-53256.flac |",
-      "real_speaker_id": "6749",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.09693137489868,
-      "end_time": 13.8475030817551,
-      "duration": 4.75057170685642,
-      "start_frame": 145550,
-      "duration_frames": 76009,
-      "overlap": false,
-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 75448
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.131488723397359,
-      "end_time": 19.824640942596716,
-      "duration": 5.693152219199355,
-      "start_frame": 226103,
-      "duration_frames": 91090,
-      "overlap": false,
-      "utterance_id": "6749-53254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-53254.flac |",
-      "real_speaker_id": "6749",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.98562509807435,
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-      "duration_frames": 72392,
-      "overlap": false,
-      "utterance_id": "2574-128282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128282.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.34266209314688,
-      "end_time": 31.52533424063468,
-      "duration": 5.1826721474878,
-      "start_frame": 421482,
-      "duration_frames": 82922,
-      "overlap": false,
-      "utterance_id": "6749-53254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-53254.flac |",
-      "real_speaker_id": "6749",
-      "position_frames": 91090
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.553932354194244,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6749/laugh/0142.wav",
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-      "start_time": 8.783406278729494,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6749/cough/0029.wav",
-      "duration": 0.94,
-      "start_time": 3.976924627520118,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1740/cough/0058.wav",
-      "duration": 0.8145952295807464,
-      "start_time": 10.917366796346393,
-      "speaker_id": "1740"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6749/laugh/0017.wav",
-      "duration": 1.28,
-      "start_time": 20.09992070833258,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6749/cough/0043.wav",
-      "duration": 1.190732257670528,
-      "start_time": 30.80926774232947,
-      "speaker_id": "6749"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000936.json b/conversations/conv_000936.json
deleted file mode 100644
index d9f9b59a77ae8d0643583d222620262480eb1f8d..0000000000000000000000000000000000000000
--- a/conversations/conv_000936.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.876572017489019,
-      "duration": 6.876572017489019,
-      "start_frame": 0,
-      "duration_frames": 110025,
-      "overlap": false,
-      "utterance_id": "1383-130532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130532.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.006095545693911,
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-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration": 5.462123508125882,
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-      "duration_frames": 87393,
-      "overlap": false,
-      "utterance_id": "1383-130532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130532.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 110025
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "8474-281187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8474-281187.flac |",
-      "real_speaker_id": "8474",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "1383",
-      "position_frames": 197418
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "end_time": 32.0,
-      "duration": 1.5649394048059122,
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-      "overlap": false,
-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 71302
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_13.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2051/laugh/0051.wav",
-      "duration": 1.12,
-      "start_time": 5.751887739724301,
-      "speaker_id": "2051"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8474/laugh/0060.wav",
-      "duration": 1.0166842496143969,
-      "start_time": 16.603033086245098,
-      "speaker_id": "8474"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8474/cough/0114.wav",
-      "duration": 0.47176607483486643,
-      "start_time": 22.764782693492137,
-      "speaker_id": "8474"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000941.json b/conversations/conv_000941.json
deleted file mode 100644
index f51a3e2716547fb730fd5e9887f52386c73d445b..0000000000000000000000000000000000000000
--- a/conversations/conv_000941.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.681281252632223,
-      "duration": 5.681281252632223,
-      "start_frame": 0,
-      "duration_frames": 90900,
-      "overlap": false,
-      "utterance_id": "5172-29468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.08186986774227,
-      "end_time": 11.335102133737536,
-      "duration": 5.253232265995265,
-      "start_frame": 97309,
-      "duration_frames": 84051,
-      "overlap": false,
-      "utterance_id": "3665-8589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3665-8589.flac |",
-      "real_speaker_id": "3665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.827481412345971,
-      "end_time": 17.192411873357262,
-      "duration": 5.364930461011292,
-      "start_frame": 189239,
-      "duration_frames": 85838,
-      "overlap": false,
-      "utterance_id": "5172-29468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 90900
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.76825094293834,
-      "end_time": 24.211166224173766,
-      "duration": 6.4429152812354245,
-      "start_frame": 284292,
-      "duration_frames": 103086,
-      "overlap": false,
-      "utterance_id": "3665-8587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3665-8587.flac |",
-      "real_speaker_id": "3665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.310491250728507,
-      "end_time": 28.06695568674333,
-      "duration": 3.7564644360148227,
-      "start_frame": 388967,
-      "duration_frames": 60103,
-      "overlap": true,
-      "utterance_id": "23-124439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.01818286518337,
-      "end_time": 32.0,
-      "duration": 2.9818171348166302,
-      "start_frame": 464290,
-      "duration_frames": 47709,
-      "overlap": false,
-      "utterance_id": "3665-8589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3665-8589.flac |",
-      "real_speaker_id": "3665",
-      "position_frames": 84051
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
-      "duration": 4.9170995513135045,
-      "start_time": 16.91329747192005
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
-      "duration": 4.459499731703931,
-      "start_time": 11.485827025729831
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3665/laugh/0136.wav",
-      "duration": 1.045142227796935,
-      "start_time": 10.233370839360093,
-      "speaker_id": "3665"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5172/laugh/0041.wav",
-      "duration": 1.552262421044795,
-      "start_time": 13.631917462318457,
-      "speaker_id": "5172"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3665/laugh/0027.wav",
-      "duration": 0.5610261775421699,
-      "start_time": 24.377800510985082,
-      "speaker_id": "3665"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/23/laugh/0022.wav",
-      "duration": 1.32,
-      "start_time": 28.24163410915091,
-      "speaker_id": "23"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/23/cough/0073.wav",
-      "duration": 1.18,
-      "start_time": 23.055967196020635,
-      "speaker_id": "23"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3665/laugh/0014.wav",
-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "3665"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000957.json b/conversations/conv_000957.json
deleted file mode 100644
index 76450603b22427da72cf278d5078fd4418b18e2c..0000000000000000000000000000000000000000
--- a/conversations/conv_000957.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.06988174870177,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.013579074410364,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4352-893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-893.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.455949473206552,
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-      "utterance_id": "4352-893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-893.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 96217
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.752530999606057,
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-      "duration": 4.318468526318533,
-      "start_frame": 220040,
-      "duration_frames": 69095,
-      "overlap": false,
-      "utterance_id": "8396-120281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120281.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.536117734171512,
-      "end_time": 24.078173173927077,
-      "duration": 5.542055439755565,
-      "start_frame": 296577,
-      "duration_frames": 88672,
-      "overlap": false,
-      "utterance_id": "3526-176653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3526-176653.flac |",
-      "real_speaker_id": "3526",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.514661716062967,
-      "end_time": 30.496349434279356,
-      "duration": 5.981687718216389,
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-      "duration_frames": 95707,
-      "overlap": false,
-      "utterance_id": "4352-10940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-10940.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.13701540652456,
-      "end_time": 31.06988174870177,
-      "duration": 0.9328663421772099,
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-      "duration_frames": 14925,
-      "overlap": true,
-      "utterance_id": "8396-240992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-240992.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4352/laugh/0078.wav",
-      "duration": 1.16,
-      "start_time": 5.0540598830678825,
-      "speaker_id": "4352"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4352/laugh/0123.wav",
-      "duration": 0.8622965248548586,
-      "start_time": 23.549593586792955,
-      "speaker_id": "4352"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8396/laugh/0095.wav",
-      "duration": 0.8775467013777484,
-      "start_time": 30.170965868023107,
-      "speaker_id": "8396"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000961.json b/conversations/conv_000961.json
deleted file mode 100644
index afa2ad5e0b30d45eb477398d62dba1f97fdb904c..0000000000000000000000000000000000000000
--- a/conversations/conv_000961.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.333701902116555,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4085-11515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11515.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 2.668337847520556,
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-      "duration": 5.5833724890890135,
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-      "overlap": true,
-      "utterance_id": "6104-58845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58845.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.21797541223609,
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-      "duration_frames": 77696,
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-      "utterance_id": "4085-11515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11515.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 53513
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.216985906727476,
-      "end_time": 19.677168660950905,
-      "duration": 3.460182754223427,
-      "start_frame": 259471,
-      "duration_frames": 55362,
-      "overlap": false,
-      "utterance_id": "6104-58845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58845.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 89333
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.88283042720329,
-      "end_time": 26.257046334825887,
-      "duration": 6.3742159076225935,
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-      "duration_frames": 101987,
-      "overlap": false,
-      "utterance_id": "6104-58843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58843.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.511719503389756,
-      "end_time": 31.333701902116555,
-      "duration": 4.821982398726799,
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-      "duration_frames": 77151,
-      "overlap": true,
-      "utterance_id": "6104-58845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58845.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 144695
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_14.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6104/laugh/0003.wav",
-      "duration": 1.002547978048287,
-      "start_time": 19.857936885884254,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000966.json b/conversations/conv_000966.json
deleted file mode 100644
index 5885b366d0c2e3707f64531058f887c6dab06374..0000000000000000000000000000000000000000
--- a/conversations/conv_000966.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.084887004814016,
-      "duration": 5.084887004814016,
-      "start_frame": 0,
-      "duration_frames": 81358,
-      "overlap": false,
-      "utterance_id": "175-129587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-129587.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.6950020351770805,
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-      "utterance_id": "6918-47541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 64664,
-      "overlap": false,
-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.925732608043273,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
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-    {
-      "segment_id": "seg0004",
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 124660
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6918/cough/0006.wav",
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-      "start_time": 15.1607168260019,
-      "speaker_id": "6918"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6694/laugh/0053.wav",
-      "duration": 1.6559250863694004,
-      "start_time": 29.543216638860347,
-      "speaker_id": "6694"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000970.json b/conversations/conv_000970.json
deleted file mode 100644
index fe6a50ca654771dad14196ece5aeba810b57ce7a..0000000000000000000000000000000000000000
--- a/conversations/conv_000970.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.785819989873147,
-  "num_speakers": 3,
-  "overlap_rate": 0.6666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.016532197989038,
-      "duration": 4.016532197989038,
-      "start_frame": 0,
-      "duration_frames": 64264,
-      "overlap": false,
-      "utterance_id": "3738-176680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176680.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.829502538696904,
-      "end_time": 9.509050408524114,
-      "duration": 4.67954786982721,
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-      "utterance_id": "3244-10691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10691.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.459991785196982,
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-      "duration_frames": 104388,
-      "overlap": true,
-      "utterance_id": "3738-176680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176680.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 64264
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.02259708500879,
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-      "duration": 5.431043089485385,
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-      "overlap": true,
-      "utterance_id": "1107-133727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133727.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.01413755989877,
-      "end_time": 27.313024106850133,
-      "duration": 5.298886546951363,
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-      "duration_frames": 84782,
-      "overlap": true,
-      "utterance_id": "3738-176682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176682.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.26837734679929,
-      "end_time": 31.785819989873147,
-      "duration": 3.5174426430738563,
-      "start_frame": 452294,
-      "duration_frames": 56279,
-      "overlap": true,
-      "utterance_id": "1107-134311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-134311.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 14.266669813412825,
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3738/cough/0061.wav",
-      "duration": 1.217770002512322,
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-      "event_class": "cough",
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-      "speaker_id": "3738"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000977.json b/conversations/conv_000977.json
deleted file mode 100644
index 70b8e2506511a0055e272364cdb9c22a5872e7e2..0000000000000000000000000000000000000000
--- a/conversations/conv_000977.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.83018844792101,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6341-64956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6341-64956.flac |",
-      "real_speaker_id": "6341",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.324089345398356,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 0
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-      "utterance_id": "6341-64956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6341-64956.flac |",
-      "real_speaker_id": "6341",
-      "position_frames": 100458
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.6187767500418,
-      "end_time": 20.955538564885742,
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-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 68105
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.699411712489365,
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-      "duration": 3.806726271240946,
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-      "overlap": false,
-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 121493
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.130689890601197,
-      "end_time": 30.83018844792101,
-      "duration": 4.699498557319813,
-      "start_frame": 418091,
-      "duration_frames": 75191,
-      "overlap": false,
-      "utterance_id": "6341-64956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6341-64956.flac |",
-      "real_speaker_id": "6341",
-      "position_frames": 180305
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6341/laugh/0037.wav",
-      "duration": 0.6610713893714197,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1780/cough/0016.wav",
-      "duration": 1.1772571000383014,
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-      "speaker_id": "1780"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000982.json b/conversations/conv_000982.json
deleted file mode 100644
index 7a816807b6db34d84a039b06f00d85ba5e8934bc..0000000000000000000000000000000000000000
--- a/conversations/conv_000982.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "duration_frames": 86846,
-      "overlap": false,
-      "utterance_id": "5093-39749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-39749.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.413850227379541,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67844.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "5093-48377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-48377.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.965452317800203,
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-      "utterance_id": "5093-26496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-26496.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 23.873468444937767,
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-      "real_speaker_id": "5093",
-      "position_frames": 87630
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.771807566015916,
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-      "duration_frames": 44348,
-      "overlap": false,
-      "utterance_id": "6627-67850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5093/laugh/0071.wav",
-      "duration": 1.36,
-      "start_time": 20.642336583285072,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6627/laugh/0009.wav",
-      "duration": 1.12,
-      "start_time": 29.521608822038026,
-      "speaker_id": "6627"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_000989.json b/conversations/conv_000989.json
deleted file mode 100644
index e835647e583872fb8d41f3972c922864653ff579..0000000000000000000000000000000000000000
--- a/conversations/conv_000989.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 30.77747255569613,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "1754-137004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-137004.flac |",
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-    {
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-      "utterance_id": "1754-140639",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-111962.flac |",
-      "real_speaker_id": "6436",
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\ No newline at end of file
diff --git a/conversations/conv_000994.json b/conversations/conv_000994.json
deleted file mode 100644
index c1f00047682e9470c010004e45680b0ea05993a8..0000000000000000000000000000000000000000
--- a/conversations/conv_000994.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4662.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 0
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-      "start_time": 6.064603592659635,
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-      "utterance_id": "730-359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-359.flac |",
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-      "speaker_id": 1,
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-      "utterance_id": "1313-135022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135022.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.24608922801741,
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-      "utterance_id": "2598-4662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4662.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 93086
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_000998.json b/conversations/conv_000998.json
deleted file mode 100644
index 5756bd73b188162d99116d77bafbe16654d20edc..0000000000000000000000000000000000000000
--- a/conversations/conv_000998.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-123269.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-122025.flac |",
-      "real_speaker_id": "176",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2504-154289.flac |",
-      "real_speaker_id": "2504",
-      "position_frames": 110183
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-122025.flac |",
-      "real_speaker_id": "176",
-      "position_frames": 81259
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4859-26870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-26870.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/176/laugh/0025.wav",
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-      "start_time": 25.754543484260203,
-      "speaker_id": "176"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001002.json b/conversations/conv_001002.json
deleted file mode 100644
index 913b669b80c3fc213d48055dfff5713372e8238e..0000000000000000000000000000000000000000
--- a/conversations/conv_001002.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.624781359156884,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7333-94829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94829.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.4052872046456137,
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-      "duration_frames": 83120,
-      "overlap": true,
-      "utterance_id": "6555-398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 0
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-    {
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-      "utterance_id": "8250-279777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-279777.flac |",
-      "real_speaker_id": "8250",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-397.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 0
-    },
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-      "start_time": 21.279154429816323,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-279777.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 50275
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 83120
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6555/laugh/0015.wav",
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-      "start_time": 25.435496349580216,
-      "speaker_id": "6555"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001009.json b/conversations/conv_001009.json
deleted file mode 100644
index 8f6ce272a7605044236cadac8e54f0bf81f4b5a9..0000000000000000000000000000000000000000
--- a/conversations/conv_001009.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
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-      "real_speaker_id": "4005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1179-136599.flac |",
-      "real_speaker_id": "1179",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.679515714141843,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7262.flac |",
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-      "segment_id": "seg0005",
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-      "segment_id": "seg0006",
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-      "position_frames": 148936
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-      "start_time": 1.872746772587481
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_001014.json b/conversations/conv_001014.json
deleted file mode 100644
index d35827c4bfbac6ba7595b5f1b1f5d3226ba7ea3a..0000000000000000000000000000000000000000
--- a/conversations/conv_001014.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1110-134828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134828.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
-    },
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-      "start_time": 5.101196033521481,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "1110-136055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-136055.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.917344552740243,
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-      "utterance_id": "1734-142311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
-      "position_frames": 79402
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1110-134829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134829.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1734-142311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
-      "position_frames": 178922
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_001018.json b/conversations/conv_001018.json
deleted file mode 100644
index 52042d4cbadf0593be069b47b2313dc0feec42eb..0000000000000000000000000000000000000000
--- a/conversations/conv_001018.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1750-142369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-142369.flac |",
-      "real_speaker_id": "1750",
-      "position_frames": 0
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-      "position_frames": 99518
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-      "segment_id": "seg0003",
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-      "utterance_id": "8506-287660",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "2272-152282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152282.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "1750",
-      "position_frames": 0
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001022.json b/conversations/conv_001022.json
deleted file mode 100644
index 4794e40f78bf4704dff0b41d639a957ae52f87e8..0000000000000000000000000000000000000000
--- a/conversations/conv_001022.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "6311-63718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6311-63718.flac |",
-      "real_speaker_id": "6311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "3274-167023",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3274-167023.flac |",
-      "real_speaker_id": "3274",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6311-63718.flac |",
-      "real_speaker_id": "6311",
-      "position_frames": 76354
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3274",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6713-56749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 106423
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-  "background_events": [
-    {
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_001023.json b/conversations/conv_001023.json
deleted file mode 100644
index 61e59dee8551b12c299f2ff47251db40430180eb..0000000000000000000000000000000000000000
--- a/conversations/conv_001023.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.400839994374355,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
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\ No newline at end of file
diff --git a/conversations/conv_001034.json b/conversations/conv_001034.json
deleted file mode 100644
index 6e8d556731e86959938fe30aa0d89d4d4acbb0f6..0000000000000000000000000000000000000000
--- a/conversations/conv_001034.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.21366575809628,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_001038.json b/conversations/conv_001038.json
deleted file mode 100644
index d777f0692b1b61731421eab506016d054e9cc846..0000000000000000000000000000000000000000
--- a/conversations/conv_001038.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_001043.json b/conversations/conv_001043.json
deleted file mode 100644
index 71fea59b17570401377eaeccc478c055336bac1d..0000000000000000000000000000000000000000
--- a/conversations/conv_001043.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 1.332903583410935,
-      "speaker_id": "4422"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4235/cough/0022.wav",
-      "duration": 0.312740866264424,
-      "start_time": 8.064205751540143,
-      "speaker_id": "4235"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 20.096659567558614,
-      "speaker_id": "4235"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001048.json b/conversations/conv_001048.json
deleted file mode 100644
index bbea107421d0966db44a23e1fdee1b6ab12ddcd9..0000000000000000000000000000000000000000
--- a/conversations/conv_001048.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.456285774903193,
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-      "utterance_id": "1924-132576",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132576.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.0895717709085915,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.10552269265144,
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-      "overlap": false,
-      "utterance_id": "1924-132574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132574.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.88843358634722,
-      "end_time": 22.457337678646887,
-      "duration": 5.56890409229967,
-      "start_frame": 270214,
-      "duration_frames": 89102,
-      "overlap": false,
-      "utterance_id": "4799-25950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25950.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.623457597309223,
-      "end_time": 27.40677486852173,
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-      "overlap": false,
-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.65237760063124,
-      "end_time": 32.0,
-      "duration": 3.3476223993687597,
-      "start_frame": 458438,
-      "duration_frames": 53561,
-      "overlap": false,
-      "utterance_id": "1924-132576",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132576.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 71300
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
-      "duration": 2.0470748299319728,
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-      "duration": 1.936306128763654,
-      "start_time": 20.710512907503578
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_001055.json b/conversations/conv_001055.json
deleted file mode 100644
index e0251d434cf5b892936c81bbf5bbe71b697276b9..0000000000000000000000000000000000000000
--- a/conversations/conv_001055.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.8322442043659,
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-      "duration_frames": 77315,
-      "overlap": false,
-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.159234158978116,
-      "end_time": 8.577708460398231,
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-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "8005-113331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113331.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.847188797499967,
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-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 54695
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 77315
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.04441720350812,
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-      "overlap": false,
-      "utterance_id": "8005-113328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113328.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.762795300822987,
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-      "duration": 2.2372046991770134,
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-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 147630
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 3.2749047473237898,
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4138/laugh/0001.wav",
-      "duration": 1.24,
-      "start_time": 0.5947222007969186,
-      "speaker_id": "4138"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8005/laugh/0145.wav",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8005/laugh/0049.wav",
-      "duration": 1.04,
-      "start_time": 23.753622746593553,
-      "speaker_id": "8005"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001058.json b/conversations/conv_001058.json
deleted file mode 100644
index 4189bea2d3051d07e4213527f9f730ba5be347d4..0000000000000000000000000000000000000000
--- a/conversations/conv_001058.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-136983.flac |",
-      "real_speaker_id": "1283",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110742.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 0
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-    {
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "7867-110528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110528.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.047135782794307,
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-      "utterance_id": "1283-129808",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-129808.flac |",
-      "real_speaker_id": "1283",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001059.json b/conversations/conv_001059.json
deleted file mode 100644
index 830b9b950ccb52a711f96075299c09400fa2d090..0000000000000000000000000000000000000000
--- a/conversations/conv_001059.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.68722683191755,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7246-275881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-275881.flac |",
-      "real_speaker_id": "7246",
-      "position_frames": 0
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-    {
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-      "position_frames": 149392
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
-      "duration": 0.14183673469387756,
-      "start_time": 26.84940024420116
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1740/cough/0017.wav",
-      "duration": 0.47034612015843136,
-      "start_time": 12.862234647252885,
-      "speaker_id": "1740"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001063.json b/conversations/conv_001063.json
deleted file mode 100644
index 2a2e66bfbed59f220bc9c7c720b902d5d29b920d..0000000000000000000000000000000000000000
--- a/conversations/conv_001063.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.453012395459837,
-      "duration": 5.453012395459837,
-      "start_frame": 0,
-      "duration_frames": 87248,
-      "overlap": false,
-      "utterance_id": "8758-291170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-291170.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.749475028258225,
-      "end_time": 12.97803038724388,
-      "duration": 6.228555358985654,
-      "start_frame": 107991,
-      "duration_frames": 99656,
-      "overlap": false,
-      "utterance_id": "7138-291964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291964.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.746425273528104,
-      "end_time": 19.702847460083063,
-      "duration": 5.956422186554958,
-      "start_frame": 219942,
-      "duration_frames": 95302,
-      "overlap": false,
-      "utterance_id": "4358-44937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-44937.flac |",
-      "real_speaker_id": "4358",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.676987812172264,
-      "end_time": 26.310717369502065,
-      "duration": 5.633729557329801,
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-      "duration_frames": 90139,
-      "overlap": false,
-      "utterance_id": "7138-73705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-73705.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.659651228999863,
-      "end_time": 32.0,
-      "duration": 4.340348771000137,
-      "start_frame": 442554,
-      "duration_frames": 69445,
-      "overlap": false,
-      "utterance_id": "7138-291964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291964.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 99656
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_3.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_12.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8758/laugh/0030.wav",
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-      "speaker_id": "8758"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7138/cough/0080.wav",
-      "duration": 1.3152612454920758,
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-      "speaker_id": "7138"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7138/cough/0136.wav",
-      "duration": 0.822653837877283,
-      "start_time": 26.829414385525798,
-      "speaker_id": "7138"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001074.json b/conversations/conv_001074.json
deleted file mode 100644
index d9ea8d1451c715b5cb920c585df24f558eb7df9e..0000000000000000000000000000000000000000
--- a/conversations/conv_001074.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.234247719328106,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.254997636730957,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-109656.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.9122191180217,
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-      "overlap": false,
-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 92562
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.848673891945738,
-      "end_time": 20.699696498810916,
-      "duration": 4.851022606865177,
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-      "duration_frames": 77616,
-      "overlap": false,
-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.95849813828677,
-      "end_time": 25.564086605096247,
-      "duration": 3.6055884668094746,
-      "start_frame": 351335,
-      "duration_frames": 57689,
-      "overlap": false,
-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 167927
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.8515820542443,
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-      "duration": 5.382665665083806,
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-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 77616
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/164574.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7688/laugh/0090.wav",
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-      "event_class": "cough",
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-      "start_time": 5.728885486025479,
-      "speaker_id": "7688"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001075.json b/conversations/conv_001075.json
deleted file mode 100644
index 1743ef57afaa06f6c541f833765f4f4213ad10cd..0000000000000000000000000000000000000000
--- a/conversations/conv_001075.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1160-139730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1160-139730.flac |",
-      "real_speaker_id": "1160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.240362341602576,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.403135800892137,
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-      "duration": 5.667988679097879,
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-      "duration_frames": 90687,
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-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 92357
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 83578,
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-      "utterance_id": "1160-139717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1160-139717.flac |",
-      "real_speaker_id": "1160",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "159-135897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-135897.flac |",
-      "real_speaker_id": "159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.767481402745034,
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-      "duration_frames": 51720,
-      "overlap": false,
-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 183044
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8476/laugh/0064.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001079.json b/conversations/conv_001079.json
deleted file mode 100644
index 6593bb24c554972331dc89300f586f56eadbf737..0000000000000000000000000000000000000000
--- a/conversations/conv_001079.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.445337835001894,
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-      "utterance_id": "8705-290361",
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-      "real_speaker_id": "8705",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 56676,
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-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 118211
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-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
-      "duration": 0.6518367346938776,
-      "start_time": 0.9886069886898148
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1780/cough/0041.wav",
-      "duration": 0.8330829363770313,
-      "start_time": 14.196653048231083,
-      "speaker_id": "1780"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1780/cough/0057.wav",
-      "duration": 0.8200812397719961,
-      "start_time": 15.858208008131824,
-      "speaker_id": "1780"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5727/laugh/0034.wav",
-      "duration": 0.6587147411848155,
-      "start_time": 31.341285258815184,
-      "speaker_id": "5727"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001080.json b/conversations/conv_001080.json
deleted file mode 100644
index 292ed7d1257797d751ff9d79d7ecffc03803a56c..0000000000000000000000000000000000000000
--- a/conversations/conv_001080.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.693544275287874,
-      "duration": 4.693544275287874,
-      "start_frame": 0,
-      "duration_frames": 75096,
-      "overlap": false,
-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.954574892247106,
-      "end_time": 11.163649965930409,
-      "duration": 6.209075073683303,
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-      "duration_frames": 99345,
-      "overlap": false,
-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.674300023098827,
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-      "start_frame": 186788,
-      "duration_frames": 56334,
-      "overlap": false,
-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.59197058732294,
-      "end_time": 21.200385905364122,
-      "duration": 5.608415318041182,
-      "start_frame": 249471,
-      "duration_frames": 89734,
-      "overlap": false,
-      "utterance_id": "7120-76055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.666509510640807,
-      "end_time": 25.896237933936003,
-      "duration": 4.229728423295196,
-      "start_frame": 346664,
-      "duration_frames": 67675,
-      "overlap": false,
-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 75096
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.29923774515986,
-      "end_time": 29.65645810793861,
-      "duration": 3.3572203627787527,
-      "start_frame": 420787,
-      "duration_frames": 53715,
-      "overlap": true,
-      "utterance_id": "548-126961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.521750350515063,
-      "end_time": 32.0,
-      "duration": 0.47824964948493687,
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-      "duration_frames": 7651,
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-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 56334
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_6.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/548/cough/0072.wav",
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-      "speaker_id": "548"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8718/cough/0088.wav",
-      "duration": 0.92,
-      "start_time": 31.08,
-      "speaker_id": "8718"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001096.json b/conversations/conv_001096.json
deleted file mode 100644
index ed7acbcd2cba76b90bf5f47c043727dc087c5ff3..0000000000000000000000000000000000000000
--- a/conversations/conv_001096.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.877035699722775,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.221498518192649,
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-      "start_frame": 0,
-      "duration_frames": 51543,
-      "overlap": false,
-      "utterance_id": "2229-152842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152842.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.83794969219156,
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-      "overlap": false,
-      "utterance_id": "1806-143946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143946.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.63419053238658,
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-      "duration_frames": 91737,
-      "overlap": false,
-      "utterance_id": "1806-2536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-2536.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.594004275991253,
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-      "duration": 5.052247217854838,
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-      "duration_frames": 80835,
-      "overlap": false,
-      "utterance_id": "2229-152842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152842.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 51543
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.896053401814175,
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-      "duration_frames": 77846,
-      "overlap": true,
-      "utterance_id": "1806-143946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143946.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 60288
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.035531787596877,
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-      "duration": 5.841503912125896,
-      "start_frame": 400568,
-      "duration_frames": 93464,
-      "overlap": true,
-      "utterance_id": "2229-152842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152842.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 132378
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 2.2666183603890198,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2229/laugh/0030.wav",
-      "duration": 0.81565454942655,
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-      "speaker_id": "2229"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001106.json b/conversations/conv_001106.json
deleted file mode 100644
index efbdec1fd82b8d5717a22f721f1525c2ca68f453..0000000000000000000000000000000000000000
--- a/conversations/conv_001106.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "end_time": 6.382604286936742,
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-      "overlap": false,
-      "utterance_id": "7502-100440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100440.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.6657329121099895,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177641.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.303920940635312,
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-      "utterance_id": "7502-100439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100439.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.294989923070577,
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-      "duration_frames": 64386,
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-      "utterance_id": "3490-177638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177638.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.69597619504487,
-      "end_time": 27.029063609519284,
-      "duration": 6.333087414474411,
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-      "overlap": false,
-      "utterance_id": "3490-177638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177638.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 64386
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.84044555151936,
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-      "duration": 4.159554448480641,
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-      "utterance_id": "7502-100426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100426.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3490/cough/0054.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001110.json b/conversations/conv_001110.json
deleted file mode 100644
index 75a0d8d278bfbb38fc33e8d4ce8865c82faa1e97..0000000000000000000000000000000000000000
--- a/conversations/conv_001110.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.2256261862670215,
-      "duration": 4.2256261862670215,
-      "start_frame": 0,
-      "duration_frames": 67610,
-      "overlap": false,
-      "utterance_id": "6610-70916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-70916.flac |",
-      "real_speaker_id": "6610",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.028635812203888,
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-      "utterance_id": "4813-248641",
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-      "real_speaker_id": "4813",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "766-127195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127195.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 155091
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.324810883971132,
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-      "duration": 2.675189116028868,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-34596.flac |",
-      "real_speaker_id": "6610",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_7.wav",
-      "duration": 0.32034013605442174,
-      "start_time": 10.400668368133402
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
-      "duration": 1.0774603174603175,
-      "start_time": 1.3473465033483047
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4813/cough/0054.wav",
-      "duration": 0.9918724723982619,
-      "start_time": 3.894864440036251,
-      "speaker_id": "4813"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001126.json b/conversations/conv_001126.json
deleted file mode 100644
index 88f7ce46be4fe89e73b48cbe7c176a19adcc2504..0000000000000000000000000000000000000000
--- a/conversations/conv_001126.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19989369626605,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.015705397540952,
-      "duration": 4.015705397540952,
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-      "duration_frames": 64251,
-      "overlap": false,
-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.009045397905572,
-      "end_time": 9.111984496218533,
-      "duration": 4.10293909831296,
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-      "overlap": false,
-      "utterance_id": "4894-7788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.639946138624758,
-      "end_time": 14.309801207868642,
-      "duration": 4.669855069243884,
-      "start_frame": 154239,
-      "duration_frames": 74717,
-      "overlap": false,
-      "utterance_id": "7688-109656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-109656.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.957012415845304,
-      "end_time": 19.30446410045957,
-      "duration": 4.347451684614265,
-      "start_frame": 239312,
-      "duration_frames": 69559,
-      "overlap": false,
-      "utterance_id": "4894-7788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
-      "position_frames": 65647
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.93197124169192,
-      "end_time": 26.186786990024796,
-      "duration": 6.254815748332876,
-      "start_frame": 318911,
-      "duration_frames": 100077,
-      "overlap": false,
-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 64251
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.363263099366982,
-      "end_time": 31.19989369626605,
-      "duration": 4.836630596899067,
-      "start_frame": 421812,
-      "duration_frames": 77386,
-      "overlap": true,
-      "utterance_id": "6943-64094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-64094.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
-      "duration": 13.380126177362989,
-      "start_time": 10.298177616640253
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
-      "duration": 0.6496145124716554,
-      "start_time": 17.501932688217764
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_001130.json b/conversations/conv_001130.json
deleted file mode 100644
index aabc4486b7b05d010e5d2721f0b7243ab537a65e..0000000000000000000000000000000000000000
--- a/conversations/conv_001130.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5892245247673813,
-      "duration": 3.5892245247673813,
-      "start_frame": 0,
-      "duration_frames": 57427,
-      "overlap": false,
-      "utterance_id": "766-127195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127195.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.089284070045335,
-      "end_time": 9.807886385225984,
-      "duration": 5.71860231518065,
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-      "duration_frames": 91497,
-      "overlap": true,
-      "utterance_id": "7511-102420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102420.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.326573802709841,
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-      "overlap": true,
-      "utterance_id": "4108-2777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2777.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.102130553448806,
-      "end_time": 21.60733111172533,
-      "duration": 5.505200558276524,
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-      "duration_frames": 88083,
-      "overlap": false,
-      "utterance_id": "766-127195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127195.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 57427
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.651595932135955,
-      "end_time": 28.447829954259216,
-      "duration": 5.7962340221232616,
-      "start_frame": 362425,
-      "duration_frames": 92739,
-      "overlap": false,
-      "utterance_id": "4108-2777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2777.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 77949
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.819835835955427,
-      "end_time": 32.0,
-      "duration": 3.180164164044573,
-      "start_frame": 461117,
-      "duration_frames": 50882,
-      "overlap": false,
-      "utterance_id": "766-127193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127193.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
-      "duration": 13.59391079757472,
-      "start_time": 16.994000015898493
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "start_time": 1.764909339983955
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7511/laugh/0094.wav",
-      "duration": 1.24,
-      "start_time": 4.871460109223205,
-      "speaker_id": "7511"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4108/laugh/0087.wav",
-      "duration": 1.12,
-      "start_time": 7.956518394002465,
-      "speaker_id": "4108"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4108/cough/0030.wav",
-      "duration": 0.5126542265038163,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/766/laugh/0069.wav",
-      "duration": 1.0363820372282213,
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-      "speaker_id": "766"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001131.json b/conversations/conv_001131.json
deleted file mode 100644
index 24e06e2a8f08fcff19d009f0e9517a054324752a..0000000000000000000000000000000000000000
--- a/conversations/conv_001131.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.076737339595038,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.660934978129359,
-      "duration": 6.660934978129359,
-      "start_frame": 0,
-      "duration_frames": 106574,
-      "overlap": false,
-      "utterance_id": "5929-48603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.9506628879596155,
-      "end_time": 12.592073153948544,
-      "duration": 5.641410265988929,
-      "start_frame": 111210,
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-      "overlap": false,
-      "utterance_id": "3656-168609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168609.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.086498476310709,
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-      "duration": 5.542831788037353,
-      "start_frame": 209383,
-      "duration_frames": 88685,
-      "overlap": false,
-      "utterance_id": "1379-130486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1379-130486.flac |",
-      "real_speaker_id": "1379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.994291791458096,
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-      "utterance_id": "3656-168648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168648.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5929-48603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 106574
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.68008193657895,
-      "end_time": 31.076737339595038,
-      "duration": 4.396655403016087,
-      "start_frame": 426881,
-      "duration_frames": 70346,
-      "overlap": true,
-      "utterance_id": "3656-168648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168648.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 69020
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_8.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5929/cough/0060.wav",
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-    {
-      "event_class": "laugh",
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-      "start_time": 18.641640552354392,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1379/cough/0068.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5929/cough/0057.wav",
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-      "speaker_id": "5929"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001147.json b/conversations/conv_001147.json
deleted file mode 100644
index 4244307731152905311c930c67d5095c13f24d5b..0000000000000000000000000000000000000000
--- a/conversations/conv_001147.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.228917251747583,
-      "duration": 5.228917251747583,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6568-68352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-68352.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 0
-    },
-    {
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6568-79375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-79375.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "4738",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "2574",
-      "position_frames": 0
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-      "utterance_id": "6568-68352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-68352.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 83662
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.87560916739022,
-      "end_time": 32.0,
-      "duration": 1.1243908326097802,
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-      "utterance_id": "4738-291957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-291957.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_5.wav",
-      "duration": 0.23666666666666666,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6568/laugh/0040.wav",
-      "duration": 0.84,
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-      "speaker_id": "6568"
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-      "event_class": "laugh",
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-      "duration": 1.1,
-      "start_time": 19.580040430958633,
-      "speaker_id": "2574"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001151.json b/conversations/conv_001151.json
deleted file mode 100644
index c5c3cb737af7c8c6c1d892831c1ecdadb99790a0..0000000000000000000000000000000000000000
--- a/conversations/conv_001151.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-179163.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.289844807948963,
-      "end_time": 8.23458558973007,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-283126.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-283126.flac |",
-      "real_speaker_id": "8245",
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-      "overlap": false,
-      "utterance_id": "3290-14909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-14909.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.781648858572638,
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-      "duration": 2.2183511414273624,
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-      "utterance_id": "8245-274393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-274393.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001166.json b/conversations/conv_001166.json
deleted file mode 100644
index a9f4a79a50bbf3fcc72a55edde89f51db12de962..0000000000000000000000000000000000000000
--- a/conversations/conv_001166.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.154490771106172,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "489-75909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75909.flac |",
-      "real_speaker_id": "489",
-      "position_frames": 0
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-      "real_speaker_id": "489",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 75591
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.401127235285585,
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-      "utterance_id": "489-75912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75912.flac |",
-      "real_speaker_id": "489",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Dishes",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001167.json b/conversations/conv_001167.json
deleted file mode 100644
index 38f877f16b35d1ec15e3b7fbbeedc5346200669b..0000000000000000000000000000000000000000
--- a/conversations/conv_001167.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6418-39655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39655.flac |",
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-    {
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001171.json b/conversations/conv_001171.json
deleted file mode 100644
index 081c054cc27fe585ae822c6096acc9aa2480dc81..0000000000000000000000000000000000000000
--- a/conversations/conv_001171.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_001184.json b/conversations/conv_001184.json
deleted file mode 100644
index e3d84e1d4091889c67f22a22dac93045535b626a..0000000000000000000000000000000000000000
--- a/conversations/conv_001184.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12544.flac |",
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-      "real_speaker_id": "7597",
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\ No newline at end of file
diff --git a/conversations/conv_001188.json b/conversations/conv_001188.json
deleted file mode 100644
index eae5598e990a6d4bd1942f40be0350799a7a4c08..0000000000000000000000000000000000000000
--- a/conversations/conv_001188.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_001189.json b/conversations/conv_001189.json
deleted file mode 100644
index e77c7afc8c3f457f2c3811086c4588f99b0b76f9..0000000000000000000000000000000000000000
--- a/conversations/conv_001189.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 25.85451558979935,
-      "speaker_id": "3230"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1629/laugh/0111.wav",
-      "duration": 1.28,
-      "start_time": 24.79645272984911,
-      "speaker_id": "1629"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1629/cough/0091.wav",
-      "duration": 0.3986577917712282,
-      "start_time": 30.02717865785779,
-      "speaker_id": "1629"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001192.json b/conversations/conv_001192.json
deleted file mode 100644
index e890fb1a333e8c6d7af553b12bb1f1574efcd571..0000000000000000000000000000000000000000
--- a/conversations/conv_001192.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.502109030553644,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.446560883347754,
-      "duration": 4.446560883347754,
-      "start_frame": 0,
-      "duration_frames": 71144,
-      "overlap": false,
-      "utterance_id": "3285-121400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121400.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.662251196136886,
-      "end_time": 8.641237369637022,
-      "duration": 3.9789861735001355,
-      "start_frame": 74596,
-      "duration_frames": 63663,
-      "overlap": false,
-      "utterance_id": "1291-138273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138273.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.763899637101403,
-      "end_time": 15.015154548387112,
-      "duration": 5.251254911285709,
-      "start_frame": 156222,
-      "duration_frames": 84020,
-      "overlap": false,
-      "utterance_id": "3285-121400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121400.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 71144
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.369855478494156,
-      "end_time": 19.093921570872954,
-      "duration": 3.7240660923787985,
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-      "duration_frames": 59585,
-      "overlap": false,
-      "utterance_id": "3285-121401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121401.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.201597780756483,
-      "end_time": 25.9483314884071,
-      "duration": 5.746733707650614,
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-      "duration_frames": 91947,
-      "overlap": false,
-      "utterance_id": "3285-121401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121401.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 59585
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.813706933876393,
-      "end_time": 30.165381877331633,
-      "duration": 3.351674943455242,
-      "start_frame": 429019,
-      "duration_frames": 53626,
-      "overlap": false,
-      "utterance_id": "1291-138096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138096.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.84726628300627,
-      "end_time": 31.502109030553644,
-      "duration": 1.6548427475473737,
-      "start_frame": 477556,
-      "duration_frames": 26477,
-      "overlap": true,
-      "utterance_id": "4442-2868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3285/cough/0037.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0804125990160696,
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-      "speaker_id": "3285"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3285/laugh/0041.wav",
-      "duration": 1.6,
-      "start_time": 19.380147838724017,
-      "speaker_id": "3285"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3285/cough/0047.wav",
-      "duration": 1.2,
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-      "speaker_id": "3285"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1291/laugh/0027.wav",
-      "duration": 0.6948509864616479,
-      "start_time": 26.100019446717543,
-      "speaker_id": "1291"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001203.json b/conversations/conv_001203.json
deleted file mode 100644
index ef6d11c0253c71fc9095bbaa5d8d42b080e19f9c..0000000000000000000000000000000000000000
--- a/conversations/conv_001203.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6614-67847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67847.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.854109777568572,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67846.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "7246-275881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-275881.flac |",
-      "real_speaker_id": "7246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.22123751653138,
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-      "overlap": true,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.217955789356825,
-      "end_time": 27.80723660644484,
-      "duration": 4.589280817088015,
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-      "duration_frames": 73428,
-      "overlap": false,
-      "utterance_id": "6614-67846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67846.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 90078
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.57213301064102,
-      "end_time": 32.0,
-      "duration": 3.4278669893589786,
-      "start_frame": 457154,
-      "duration_frames": 54845,
-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 83056
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79638.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7246/laugh/0109.wav",
-      "duration": 1.1411958292153237,
-      "start_time": 13.159326277586898,
-      "speaker_id": "7246"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5459/laugh/0084.wav",
-      "duration": 1.532078076755952,
-      "start_time": 29.460094441154958,
-      "speaker_id": "5459"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001215.json b/conversations/conv_001215.json
deleted file mode 100644
index 48d346e454f70aca2c446791ab6adfb6cfe8288a..0000000000000000000000000000000000000000
--- a/conversations/conv_001215.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.302739013226685,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1806-143946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143946.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.935130764680589,
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-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.93615361141103,
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-      "duration_frames": 109130,
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-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.971655776717023,
-      "end_time": 19.23424076207112,
-      "duration": 3.262584985354098,
-      "start_frame": 255546,
-      "duration_frames": 52201,
-      "overlap": false,
-      "utterance_id": "2256-137627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137627.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.841451360331636,
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-      "utterance_id": "1806-143946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143946.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 52830
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.339121169946516,
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-      "duration": 4.96361784328017,
-      "start_frame": 421425,
-      "duration_frames": 79417,
-      "overlap": true,
-      "utterance_id": "7525-92915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-92915.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_001218.json b/conversations/conv_001218.json
deleted file mode 100644
index 5323f7bab274c05f82a86c93b022a06ce5bf27ca..0000000000000000000000000000000000000000
--- a/conversations/conv_001218.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.747207199107253,
-      "duration": 5.747207199107253,
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-      "duration_frames": 91955,
-      "overlap": false,
-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-    {
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-      "utterance_id": "5118-40456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-40456.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
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-    {
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-  "background_events": [
-    {
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.3725658479296277,
-      "start_time": 23.735933527885898
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2517/cough/0097.wav",
-      "duration": 0.7406072813903277,
-      "start_time": 5.84369187908735,
-      "speaker_id": "2517"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001219.json b/conversations/conv_001219.json
deleted file mode 100644
index 62b08da52c3d2f237429e81d4be7466ef3eb4576..0000000000000000000000000000000000000000
--- a/conversations/conv_001219.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.895712386252384,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.831641232078908,
-      "duration": 4.831641232078908,
-      "start_frame": 0,
-      "duration_frames": 77306,
-      "overlap": false,
-      "utterance_id": "2026-81608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.123677269437145,
-      "end_time": 11.306220131339014,
-      "duration": 5.182542861901868,
-      "start_frame": 97978,
-      "duration_frames": 82920,
-      "overlap": false,
-      "utterance_id": "5914-52088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.549077016877956,
-      "end_time": 18.104904369947267,
-      "duration": 5.555827353069311,
-      "start_frame": 200785,
-      "duration_frames": 88893,
-      "overlap": false,
-      "utterance_id": "5914-52088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 82920
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.87969280865557,
-      "end_time": 26.255409551364252,
-      "duration": 6.375716742708683,
-      "start_frame": 318075,
-      "duration_frames": 102011,
-      "overlap": false,
-      "utterance_id": "5914-52088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 171813
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.489622084885088,
-      "end_time": 30.895712386252384,
-      "duration": 5.4060903013672945,
-      "start_frame": 407833,
-      "duration_frames": 86497,
-      "overlap": true,
-      "utterance_id": "3733-140718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
-      "duration": 16.848412698412698,
-      "start_time": 7.812585413068934
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.874023131975864,
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
-      "duration": 1.0095479914216905,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2026/laugh/0086.wav",
-      "duration": 1.419185449168216,
-      "start_time": 4.976493339258425,
-      "speaker_id": "2026"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5914/laugh/0088.wav",
-      "duration": 1.4141510830230004,
-      "start_time": 9.255289886196167,
-      "speaker_id": "5914"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5914/laugh/0072.wav",
-      "duration": 1.0396590363417066,
-      "start_time": 18.745931223953345,
-      "speaker_id": "5914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001223.json b/conversations/conv_001223.json
deleted file mode 100644
index 3dcb9813c6ab73b50b1b5947cd9860d60f59a0be..0000000000000000000000000000000000000000
--- a/conversations/conv_001223.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5263689820404287,
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-      "overlap": false,
-      "utterance_id": "3112-9554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9554.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.1550467836276415,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2110-161100.flac |",
-      "real_speaker_id": "2110",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.420122598336675,
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-      "overlap": false,
-      "utterance_id": "1750-142369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-142369.flac |",
-      "real_speaker_id": "1750",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.267197523704652,
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-      "duration": 6.49979042225373,
-      "start_frame": 260275,
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-      "overlap": false,
-      "utterance_id": "3112-9555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9555.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.264820869736575,
-      "end_time": 28.2610011086657,
-      "duration": 4.996180238929124,
-      "start_frame": 372237,
-      "duration_frames": 79938,
-      "overlap": false,
-      "utterance_id": "2110-161100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2110-161100.flac |",
-      "real_speaker_id": "2110",
-      "position_frames": 69994
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.240983534474747,
-      "end_time": 32.0,
-      "duration": 2.759016465525253,
-      "start_frame": 467855,
-      "duration_frames": 44144,
-      "overlap": false,
-      "utterance_id": "3112-9554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9554.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 56421
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3112/laugh/0021.wav",
-      "duration": 1.86,
-      "start_time": 0.2516638639420013,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2110/cough/0096.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3112/laugh/0004.wav",
-      "duration": 1.3427015422900932,
-      "start_time": 30.657298457709906,
-      "speaker_id": "3112"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001224.json b/conversations/conv_001224.json
deleted file mode 100644
index 2b5df15def7b49220044df2f30223bea1967e980..0000000000000000000000000000000000000000
--- a/conversations/conv_001224.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.235878541665116,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.894616326242723,
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-      "overlap": false,
-      "utterance_id": "1958-144503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.650185770285068,
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-      "overlap": false,
-      "utterance_id": "421-124401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 7.917245618486266,
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-      "duration": 6.781451256426643,
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-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "421-128336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.572519031241725,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 62313
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.13609330335975,
-      "end_time": 31.235878541665116,
-      "duration": 6.0997852383053655,
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-      "overlap": false,
-      "utterance_id": "421-124401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 50039
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.613995563634226,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 148467
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_001232.json b/conversations/conv_001232.json
deleted file mode 100644
index 32b08bbc5cea7404ca94f4d18075f969f6ed9200..0000000000000000000000000000000000000000
--- a/conversations/conv_001232.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.381685280282138,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "start_frame": 0,
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-      "utterance_id": "5198-204975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204975.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4710-17347",
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-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5198/cough/0084.wav",
-      "duration": 0.48701071619681063,
-      "start_time": 18.102782560358396,
-      "speaker_id": "5198"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001235.json b/conversations/conv_001235.json
deleted file mode 100644
index 16e41cf58b1ead47d6a69b18a7a26c98e52bbb7c..0000000000000000000000000000000000000000
--- a/conversations/conv_001235.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.25717681169252,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.717601855367309,
-      "duration": 5.717601855367309,
-      "start_frame": 0,
-      "duration_frames": 91481,
-      "overlap": false,
-      "utterance_id": "5044-30602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30602.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.090076273220924,
-      "end_time": 10.767819392936259,
-      "duration": 4.677743119715335,
-      "start_frame": 97441,
-      "duration_frames": 74843,
-      "overlap": false,
-      "utterance_id": "8879-300343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300343.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.475585248403736,
-      "end_time": 14.889990122723031,
-      "duration": 3.414404874319296,
-      "start_frame": 183609,
-      "duration_frames": 54630,
-      "overlap": false,
-      "utterance_id": "5044-30602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30602.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 91481
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.11589090494416,
-      "end_time": 19.830559356738533,
-      "duration": 3.7146684517943744,
-      "start_frame": 257854,
-      "duration_frames": 59434,
-      "overlap": false,
-      "utterance_id": "8879-300234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300234.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.287056846498952,
-      "end_time": 24.211173012616303,
-      "duration": 3.9241161661173494,
-      "start_frame": 324592,
-      "duration_frames": 62785,
-      "overlap": false,
-      "utterance_id": "5044-30592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30592.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.687387317595697,
-      "end_time": 29.332737825613645,
-      "duration": 4.645350508017947,
-      "start_frame": 394998,
-      "duration_frames": 74325,
-      "overlap": false,
-      "utterance_id": "8879-300343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300343.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 74843
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.139781259750304,
-      "end_time": 31.25717681169252,
-      "duration": 2.1173955519422165,
-      "start_frame": 466236,
-      "duration_frames": 33878,
-      "overlap": true,
-      "utterance_id": "2911-7601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-7601.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
-      "duration": 17.37816326530612,
-      "start_time": 1.436615044611946
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
-      "duration": 0.19419501133786848,
-      "start_time": 27.132738899254576
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.574175321164813,
-      "start_time": 10.119894992915826
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8879/laugh/0053.wav",
-      "duration": 1.1,
-      "start_time": 14.901257353083002,
-      "speaker_id": "8879"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8879/cough/0074.wav",
-      "duration": 0.3790319888123367,
-      "start_time": 15.5984357097172,
-      "speaker_id": "8879"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5044/cough/0084.wav",
-      "duration": 1.0981898717375804,
-      "start_time": 19.098921384636764,
-      "speaker_id": "5044"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8879/laugh/0089.wav",
-      "duration": 1.1729020824418377,
-      "start_time": 27.03774312951797,
-      "speaker_id": "8879"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001239.json b/conversations/conv_001239.json
deleted file mode 100644
index 547c49c44c65de20fb9d9d2dc7ed5d6dcb7713a6..0000000000000000000000000000000000000000
--- a/conversations/conv_001239.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.3168857001254946,
-      "duration": 4.3168857001254946,
-      "start_frame": 0,
-      "duration_frames": 69070,
-      "overlap": false,
-      "utterance_id": "1165-135220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135220.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.682541892920533,
-      "end_time": 10.335941454665836,
-      "duration": 5.653399561745302,
-      "start_frame": 74920,
-      "duration_frames": 90454,
-      "overlap": false,
-      "utterance_id": "7189-77777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-77777.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.733207838962258,
-      "end_time": 14.995669128985291,
-      "duration": 4.262461290023033,
-      "start_frame": 171731,
-      "duration_frames": 68199,
-      "overlap": false,
-      "utterance_id": "1165-135216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135216.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.654201825089572,
-      "end_time": 18.88612856767584,
-      "duration": 3.231926742586266,
-      "start_frame": 250467,
-      "duration_frames": 51710,
-      "overlap": false,
-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.001228227057883,
-      "end_time": 25.207467529046426,
-      "duration": 6.206239301988543,
-      "start_frame": 304019,
-      "duration_frames": 99299,
-      "overlap": false,
-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 51710
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.638237464650253,
-      "end_time": 30.911547885937694,
-      "duration": 5.273310421287439,
-      "start_frame": 410211,
-      "duration_frames": 84372,
-      "overlap": false,
-      "utterance_id": "7189-77777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-77777.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 90454
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.05939938671996,
-      "end_time": 32.0,
-      "duration": 0.94060061328004,
-      "start_frame": 496950,
-      "duration_frames": 15049,
-      "overlap": false,
-      "utterance_id": "1165-135216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135216.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 68199
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
-      "duration": 13.848490497482047,
-      "start_time": 6.001442046091319
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
-      "duration": 3.176839684600306,
-      "start_time": 9.50293409273794
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1165/laugh/0069.wav",
-      "duration": 1.0321832891505498,
-      "start_time": 3.1224870447003044,
-      "speaker_id": "1165"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7189/laugh/0050.wav",
-      "duration": 1.0860611688839192,
-      "start_time": 3.381260582255729,
-      "speaker_id": "7189"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6620/laugh/0054.wav",
-      "duration": 0.8943410614815617,
-      "start_time": 19.06419668292235,
-      "speaker_id": "6620"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6620/laugh/0033.wav",
-      "duration": 0.8692533728627131,
-      "start_time": 18.0784408199324,
-      "speaker_id": "6620"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7189/laugh/0125.wav",
-      "duration": 0.7519276061034157,
-      "start_time": 24.739844355391927,
-      "speaker_id": "7189"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001242.json b/conversations/conv_001242.json
deleted file mode 100644
index 3c56479eae6361964db15233cd4094bf98997f8e..0000000000000000000000000000000000000000
--- a/conversations/conv_001242.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0861715824191793,
-      "duration": 3.0861715824191793,
-      "start_frame": 0,
-      "duration_frames": 49378,
-      "overlap": false,
-      "utterance_id": "4010-10801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10801.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.576828859829808,
-      "end_time": 8.899104906747139,
-      "duration": 5.322276046917331,
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-      "duration_frames": 85156,
-      "overlap": false,
-      "utterance_id": "177-55218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-55218.flac |",
-      "real_speaker_id": "177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.490665974334586,
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-      "overlap": false,
-      "utterance_id": "4010-10822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10822.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.23274068106741,
-      "end_time": 19.228918585859635,
-      "duration": 5.996177904792225,
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-      "duration_frames": 95938,
-      "overlap": true,
-      "utterance_id": "177-122839",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-122839.flac |",
-      "real_speaker_id": "177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.110607569041136,
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-      "duration_frames": 82014,
-      "overlap": false,
-      "utterance_id": "4010-10822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10822.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 62452
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.62774613272603,
-      "end_time": 31.01558033688881,
-      "duration": 5.387834204162779,
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-      "duration_frames": 86205,
-      "overlap": false,
-      "utterance_id": "4010-10822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10822.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 144466
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.67067254328247,
-      "end_time": 32.0,
-      "duration": 0.32932745671752883,
-      "start_frame": 506730,
-      "duration_frames": 5269,
-      "overlap": false,
-      "utterance_id": "177-55218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-55218.flac |",
-      "real_speaker_id": "177",
-      "position_frames": 85156
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/177/laugh/0074.wav",
-      "duration": 1.08,
-      "start_time": 5.259132267675222,
-      "speaker_id": "177"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4010/laugh/0107.wav",
-      "duration": 1.04,
-      "start_time": 20.32488483286346,
-      "speaker_id": "4010"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001254.json b/conversations/conv_001254.json
deleted file mode 100644
index 320e888984d52800c1e526f2e4fddb1b82b8c194..0000000000000000000000000000000000000000
--- a/conversations/conv_001254.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.167297140388804,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6773-76039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.724843724830514,
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-      "utterance_id": "317-130243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130243.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.758984532960362,
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-      "utterance_id": "317-130243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130243.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 83809
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.227864423423597,
-      "end_time": 24.502510568207224,
-      "duration": 5.2746461447836275,
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-      "duration_frames": 84394,
-      "overlap": false,
-      "utterance_id": "2067-143535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.894591905748563,
-      "end_time": 31.167297140388804,
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-      "overlap": true,
-      "utterance_id": "6773-76039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 86975
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
-      "duration": 1.275966230390961,
-      "start_time": 6.255237913120439
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-      "event_class": "Alarm_bell_ringing",
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-      "duration": 1.007687074829932,
-      "start_time": 22.369900393460075
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6773/cough/0022.wav",
-      "duration": 0.5407296538793409,
-      "start_time": 0,
-      "speaker_id": "6773"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 5.974512581749845,
-      "speaker_id": "317"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/317/cough/0035.wav",
-      "duration": 0.6684627915185093,
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-      "speaker_id": "317"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/317/cough/0132.wav",
-      "duration": 1.1819267830101166,
-      "start_time": 18.54769359769094,
-      "speaker_id": "317"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6773/laugh/0063.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "6773"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6773/cough/0037.wav",
-      "duration": 1.2050687885816487,
-      "start_time": 23.54459513122793,
-      "speaker_id": "6773"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001258.json b/conversations/conv_001258.json
deleted file mode 100644
index 828f1374bc963b36109bf473affb87e59232d5c6..0000000000000000000000000000000000000000
--- a/conversations/conv_001258.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.354870088746487,
-      "duration": 4.354870088746487,
-      "start_frame": 0,
-      "duration_frames": 69677,
-      "overlap": false,
-      "utterance_id": "1460-138290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.597224854510263,
-      "end_time": 8.937862034028889,
-      "duration": 4.340637179518626,
-      "start_frame": 73555,
-      "duration_frames": 69450,
-      "overlap": false,
-      "utterance_id": "5796-49594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-49594.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.412540982579138,
-      "end_time": 16.20304247324962,
-      "duration": 6.790501490670484,
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-      "duration_frames": 108648,
-      "overlap": false,
-      "utterance_id": "1460-138289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138289.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.814334199619644,
-      "end_time": 22.968394623432253,
-      "duration": 6.154060423812609,
-      "start_frame": 269029,
-      "duration_frames": 98464,
-      "overlap": false,
-      "utterance_id": "5796-49594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-49594.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 69450
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.84253048209751,
-      "end_time": 30.32499703928934,
-      "duration": 6.482466557191831,
-      "start_frame": 381480,
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-      "overlap": false,
-      "utterance_id": "426-122819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122819.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.75721233674442,
-      "end_time": 32.0,
-      "duration": 1.24278766325558,
-      "start_frame": 492115,
-      "duration_frames": 19884,
-      "overlap": false,
-      "utterance_id": "426-122819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122819.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 103719
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 18.58748994453416,
-      "speaker_id": "5796"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.412793350674301,
-      "start_time": 22.264182516178813,
-      "speaker_id": "426"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001262.json b/conversations/conv_001262.json
deleted file mode 100644
index 3ed3fdb531aa2b24137f6bcecbbe33b97dd308c7..0000000000000000000000000000000000000000
--- a/conversations/conv_001262.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7026-86946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86946.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.783858993360975,
-      "end_time": 12.944144286574812,
-      "duration": 6.160285293213837,
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-      "overlap": false,
-      "utterance_id": "1290-135762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.999321078424806,
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-      "duration": 6.2193920507907885,
-      "start_frame": 223989,
-      "duration_frames": 99510,
-      "overlap": false,
-      "utterance_id": "7026-86941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.40086359196905,
-      "end_time": 26.832183146554044,
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-      "start_frame": 326413,
-      "duration_frames": 102901,
-      "overlap": false,
-      "utterance_id": "1290-135762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 98564
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 28.501300272785823,
-      "end_time": 32.0,
-      "duration": 3.498699727214177,
-      "start_frame": 456020,
-      "duration_frames": 55979,
-      "overlap": false,
-      "utterance_id": "1290-135762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 201465
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "duration": 3.205589485724948,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1290/laugh/0088.wav",
-      "duration": 1.3800783053180241,
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-      "speaker_id": "1290"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1290/cough/0083.wav",
-      "duration": 1.28,
-      "start_time": 9.851792533796573,
-      "speaker_id": "1290"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7026/cough/0094.wav",
-      "duration": 1.16,
-      "start_time": 14.647860017027437,
-      "speaker_id": "7026"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001265.json b/conversations/conv_001265.json
deleted file mode 100644
index 98e2618cd3bf27d2cc0a3b20d2f7af03efa75d18..0000000000000000000000000000000000000000
--- a/conversations/conv_001265.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.614687732665622,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7050219333612704,
-      "duration": 3.7050219333612704,
-      "start_frame": 0,
-      "duration_frames": 59280,
-      "overlap": false,
-      "utterance_id": "1804-170447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-170447.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.721454610806042,
-      "end_time": 11.192450113735914,
-      "duration": 6.470995502929872,
-      "start_frame": 75543,
-      "duration_frames": 103535,
-      "overlap": false,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.007804079979916,
-      "end_time": 15.883533024598018,
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-      "start_frame": 192124,
-      "duration_frames": 62011,
-      "overlap": false,
-      "utterance_id": "3962-721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3962-721.flac |",
-      "real_speaker_id": "3962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.07522880028274,
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-      "utterance_id": "1804-131527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-131527.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.042892612021898,
-      "end_time": 27.720008238556783,
-      "duration": 5.677115626534886,
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-      "duration_frames": 90833,
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-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 103535
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.940292569529042,
-      "end_time": 31.614687732665622,
-      "duration": 3.6743951631365803,
-      "start_frame": 447044,
-      "duration_frames": 58790,
-      "overlap": true,
-      "utterance_id": "1804-170447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-170447.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 59280
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1804/cough/0045.wav",
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-      "start_time": 30.894340905979522,
-      "speaker_id": "1804"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001273.json b/conversations/conv_001273.json
deleted file mode 100644
index 613a068e265265d8bf52df476a6ea46352fc89f9..0000000000000000000000000000000000000000
--- a/conversations/conv_001273.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.09200267647315,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.1546584983927675,
-      "duration": 5.1546584983927675,
-      "start_frame": 0,
-      "duration_frames": 82474,
-      "overlap": false,
-      "utterance_id": "3879-173592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.809482721720566,
-      "end_time": 9.12428571820173,
-      "duration": 3.3148029964811645,
-      "start_frame": 92951,
-      "duration_frames": 53036,
-      "overlap": false,
-      "utterance_id": "5993-19639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19639.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.433230595487593,
-      "end_time": 15.042549911373904,
-      "duration": 5.609319315886311,
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-      "duration_frames": 89749,
-      "overlap": false,
-      "utterance_id": "6418-39656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39656.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.618178868140944,
-      "end_time": 19.48560430915342,
-      "duration": 3.8674254410124753,
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-      "overlap": false,
-      "utterance_id": "5993-19685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19685.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.189564474657463,
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-      "utterance_id": "6418-39654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39654.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.803783814396763,
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-      "utterance_id": "3879-174923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-174923.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.38269096391099,
-      "start_time": 16.095858656177246
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3879/laugh/0088.wav",
-      "duration": 0.855703861988858,
-      "start_time": 25.87970307603697,
-      "speaker_id": "3879"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001274.json b/conversations/conv_001274.json
deleted file mode 100644
index b6d106856c0f679d4d676d5bfe8f191949b88b0a..0000000000000000000000000000000000000000
--- a/conversations/conv_001274.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.91321670580492,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.487545805176606,
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-      "overlap": false,
-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.061583918858583,
-      "end_time": 9.758712088129915,
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-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 87800
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.770537067869633,
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-      "overlap": false,
-      "utterance_id": "7228-98238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98238.flac |",
-      "real_speaker_id": "7228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.09355132817359,
-      "end_time": 19.519995463321163,
-      "duration": 3.426444135147573,
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-      "duration_frames": 54823,
-      "overlap": false,
-      "utterance_id": "7228-98238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98238.flac |",
-      "real_speaker_id": "7228",
-      "position_frames": 66799
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.18813902598839,
-      "end_time": 24.480925232343658,
-      "duration": 5.292786206355266,
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-      "duration_frames": 84684,
-      "overlap": true,
-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 146954
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.925915572936113,
-      "end_time": 31.91321670580492,
-      "duration": 5.987301132868809,
-      "start_frame": 414814,
-      "duration_frames": 95796,
-      "overlap": false,
-      "utterance_id": "7228-98227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98227.flac |",
-      "real_speaker_id": "7228",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2276/cough/0038.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7228/cough/0036.wav",
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-      "start_time": 19.706794103540076,
-      "speaker_id": "7228"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001278.json b/conversations/conv_001278.json
deleted file mode 100644
index c734df55af4e64246e79ddf694597e2f85a2749a..0000000000000000000000000000000000000000
--- a/conversations/conv_001278.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.956409851990577,
-      "duration": 6.956409851990577,
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-      "overlap": false,
-      "utterance_id": "7833-102239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.401567532625639,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-139612.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.267805568539519,
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-      "duration": 3.7875765885000705,
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-      "overlap": false,
-      "utterance_id": "7833-102239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 111302
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.93720516308253,
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-      "start_frame": 398995,
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-      "overlap": false,
-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 83579
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.81976469288029,
-      "end_time": 32.0,
-      "duration": 1.180235307119709,
-      "start_frame": 493116,
-      "duration_frames": 18883,
-      "overlap": false,
-      "utterance_id": "596-127685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
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-      "event_class": "cough",
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-      "speaker_id": "596"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1731/cough/0108.wav",
-      "duration": 1.2166589261320224,
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-      "event_class": "cough",
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-      "start_time": 30.53392073067272,
-      "speaker_id": "1731"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001281.json b/conversations/conv_001281.json
deleted file mode 100644
index 841c550378ae3c12a1737fd5ad86029ea4c4cb26..0000000000000000000000000000000000000000
--- a/conversations/conv_001281.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.949886679789607,
-      "duration": 4.949886679789607,
-      "start_frame": 0,
-      "duration_frames": 79198,
-      "overlap": false,
-      "utterance_id": "5390-30102",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.006360438842059,
-      "end_time": 9.758743714549116,
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-      "overlap": true,
-      "utterance_id": "1629-139707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139707.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.710720755519544,
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-      "duration": 3.7911467770290512,
-      "start_frame": 171371,
-      "duration_frames": 60658,
-      "overlap": false,
-      "utterance_id": "1629-139707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139707.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 76038
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.917596636720145,
-      "end_time": 18.512624504186434,
-      "duration": 3.595027867466288,
-      "start_frame": 238681,
-      "duration_frames": 57520,
-      "overlap": false,
-      "utterance_id": "5390-30102",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 79198
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.802350690360573,
-      "end_time": 24.44906840373202,
-      "duration": 5.646717713371449,
-      "start_frame": 300837,
-      "duration_frames": 90347,
-      "overlap": false,
-      "utterance_id": "7314-77782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-77782.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.203139205744286,
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-      "overlap": false,
-      "utterance_id": "5390-30096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30096.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.46381907473591,
-      "end_time": 32.0,
-      "duration": 0.536180925264091,
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-      "duration_frames": 8578,
-      "overlap": false,
-      "utterance_id": "7314-77782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-77782.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 90347
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_2.wav",
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-      "start_time": 15.138703611613213
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1629/laugh/0033.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1629/cough/0032.wav",
-      "duration": 0.31966700693347977,
-      "start_time": 11.095072681897923,
-      "speaker_id": "1629"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5390/laugh/0075.wav",
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-      "start_time": 18.526871263828582,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5390/cough/0114.wav",
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-      "start_time": 18.642700973371163,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7314/cough/0098.wav",
-      "duration": 1.02,
-      "start_time": 17.589789923777722,
-      "speaker_id": "7314"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5390/laugh/0002.wav",
-      "duration": 1.08,
-      "start_time": 23.880801834773617,
-      "speaker_id": "5390"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7314/laugh/0082.wav",
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-      "start_time": 31.206038446390078,
-      "speaker_id": "7314"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001297.json b/conversations/conv_001297.json
deleted file mode 100644
index ea3057df767884594c734746d585fd38d767ef67..0000000000000000000000000000000000000000
--- a/conversations/conv_001297.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.58886369166484,
-      "duration": 4.58886369166484,
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\ No newline at end of file
diff --git a/conversations/conv_001307.json b/conversations/conv_001307.json
deleted file mode 100644
index 987e84e6ccfbb799f7b6d983b379f7f1180454fa..0000000000000000000000000000000000000000
--- a/conversations/conv_001307.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1401-146770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-146770.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_001311.json b/conversations/conv_001311.json
deleted file mode 100644
index e86fe1b7faac71e354b0190a77b999d84ebc7df6..0000000000000000000000000000000000000000
--- a/conversations/conv_001311.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_001320.json b/conversations/conv_001320.json
deleted file mode 100644
index 25a2b10ce1eeab7c875a0940dc6c17ac66e613b6..0000000000000000000000000000000000000000
--- a/conversations/conv_001320.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.161035173926358,
-  "num_speakers": 3,
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_6.wav",
-      "duration": 0.11859410430839003,
-      "start_time": 20.941844413127185
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1647/cough/0033.wav",
-      "duration": 0.8894333043543992,
-      "start_time": 0,
-      "speaker_id": "1647"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1473/cough/0104.wav",
-      "duration": 0.8937093792511384,
-      "start_time": 18.102681268396456,
-      "speaker_id": "1473"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3479/laugh/0006.wav",
-      "duration": 1.44,
-      "start_time": 24.153772281056156,
-      "speaker_id": "3479"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1473/laugh/0005.wav",
-      "duration": 1.0525878421485098,
-      "start_time": 25.788497509161353,
-      "speaker_id": "1473"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001327.json b/conversations/conv_001327.json
deleted file mode 100644
index cbfd6e122ab07367ee33c4a63089639c1d4e6098..0000000000000000000000000000000000000000
--- a/conversations/conv_001327.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.46186984508546,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.598550187388943,
-      "duration": 6.598550187388943,
-      "start_frame": 0,
-      "duration_frames": 105576,
-      "overlap": false,
-      "utterance_id": "3871-693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-693.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.366918122691972,
-      "end_time": 14.00989715699953,
-      "duration": 6.642979034307558,
-      "start_frame": 117870,
-      "duration_frames": 106287,
-      "overlap": false,
-      "utterance_id": "3871-693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-693.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 105576
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.809769755617982,
-      "end_time": 20.84613190783793,
-      "duration": 6.036362152219948,
-      "start_frame": 236956,
-      "duration_frames": 96581,
-      "overlap": false,
-      "utterance_id": "3967-292604",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-292604.flac |",
-      "real_speaker_id": "3967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.88255169172753,
-      "end_time": 28.100623226563833,
-      "duration": 6.218071534836302,
-      "start_frame": 350120,
-      "duration_frames": 99489,
-      "overlap": false,
-      "utterance_id": "3871-692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.715426720725507,
-      "end_time": 31.46186984508546,
-      "duration": 3.7464431243599527,
-      "start_frame": 443446,
-      "duration_frames": 59943,
-      "overlap": true,
-      "utterance_id": "3967-292604",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-292604.flac |",
-      "real_speaker_id": "3967",
-      "position_frames": 96581
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
-      "duration": 17.334692858537025,
-      "start_time": 11.676573845719696
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
-      "duration": 2.577443184304103,
-      "start_time": 3.3568573382013667
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.304571416593218,
-      "start_time": 8.931205634978813
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3871/cough/0112.wav",
-      "duration": 1.3931488566440655,
-      "start_time": 28.105085680259144,
-      "speaker_id": "3871"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001331.json b/conversations/conv_001331.json
deleted file mode 100644
index c6890f80e5536025f8f32ba748983c9f0a3a0b41..0000000000000000000000000000000000000000
--- a/conversations/conv_001331.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.971553872517755,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "253-124400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-124400.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "690-133452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-133452.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.059796941140782,
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-      "overlap": false,
-      "utterance_id": "8506-287659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-287659.flac |",
-      "real_speaker_id": "8506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.631154313822698,
-      "end_time": 21.313899811418246,
-      "duration": 5.682745497595549,
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-      "duration_frames": 90923,
-      "overlap": true,
-      "utterance_id": "690-128665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-128665.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.91127453979486,
-      "end_time": 27.94655360786412,
-      "duration": 5.0352790680692605,
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-      "overlap": false,
-      "utterance_id": "253-124400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-124400.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 79544
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.435137447833778,
-      "end_time": 32.0,
-      "duration": 3.564862552166222,
-      "start_frame": 454962,
-      "duration_frames": 57037,
-      "overlap": false,
-      "utterance_id": "690-133452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-133452.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 66938
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/253/laugh/0003.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/690/laugh/0050.wav",
-      "duration": 0.6703538032695304,
-      "start_time": 6.640989979069245,
-      "speaker_id": "690"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001336.json b/conversations/conv_001336.json
deleted file mode 100644
index 0766fc6a7aa9647dc955aff1178991143b116ac2..0000000000000000000000000000000000000000
--- a/conversations/conv_001336.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.053230968684755,
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-      "start_frame": 0,
-      "duration_frames": 96851,
-      "overlap": false,
-      "utterance_id": "810-130096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130096.flac |",
-      "real_speaker_id": "810",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.20446340169789,
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-      "overlap": true,
-      "utterance_id": "3119-163519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163519.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.404943522325379,
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-      "start_frame": 182479,
-      "duration_frames": 104832,
-      "overlap": false,
-      "utterance_id": "1107-1042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-1042.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.259754913611292,
-      "end_time": 24.071568620674277,
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-      "start_frame": 308156,
-      "duration_frames": 76989,
-      "overlap": false,
-      "utterance_id": "3119-163519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163519.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 70358
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.777555984032386,
-      "end_time": 29.043880516808546,
-      "duration": 4.266324532776159,
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-      "duration_frames": 68261,
-      "overlap": false,
-      "utterance_id": "1107-1042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-1042.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 104832
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.086822431126553,
-      "end_time": 32.0,
-      "duration": 1.9131775688734471,
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-      "overlap": false,
-      "utterance_id": "810-130095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130095.flac |",
-      "real_speaker_id": "810",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "810"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001346.json b/conversations/conv_001346.json
deleted file mode 100644
index 5dbd9ea8f037bc8eac4fb59120141ad94271c6c0..0000000000000000000000000000000000000000
--- a/conversations/conv_001346.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.93890542713022,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.216226610462095,
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-      "utterance_id": "5719-233361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233361.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.882713951064027,
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-      "duration_frames": 75211,
-      "overlap": true,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
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-      "position_frames": 72334
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "5719-233352",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "4425",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 98774
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1704/laugh/0092.wav",
-      "duration": 1.08,
-      "start_time": 9.571162038803015,
-      "speaker_id": "1704"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4425/laugh/0070.wav",
-      "duration": 1.0,
-      "start_time": 20.419202390075135,
-      "speaker_id": "4425"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001350.json b/conversations/conv_001350.json
deleted file mode 100644
index a07e66e39c79f4efbf7ca701b0c803e9e910a114..0000000000000000000000000000000000000000
--- a/conversations/conv_001350.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.085987817277342,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.635686406369463,
-      "duration": 4.635686406369463,
-      "start_frame": 0,
-      "duration_frames": 74170,
-      "overlap": false,
-      "utterance_id": "6954-76168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76168.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.422788456965673,
-      "end_time": 9.14370293961993,
-      "duration": 3.720914482654257,
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-      "duration_frames": 59534,
-      "overlap": false,
-      "utterance_id": "5723-43306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-43306.flac |",
-      "real_speaker_id": "5723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.623756666925932,
-      "end_time": 15.651422003740008,
-      "duration": 6.027665336814076,
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-      "overlap": false,
-      "utterance_id": "6954-76168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76168.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 74170
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.78409357002764,
-      "end_time": 22.551361701406677,
-      "duration": 6.767268131379039,
-      "start_frame": 252545,
-      "duration_frames": 108276,
-      "overlap": false,
-      "utterance_id": "5723-43296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-43296.flac |",
-      "real_speaker_id": "5723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.34531832126226,
-      "end_time": 29.716504213827708,
-      "duration": 6.3711858925654505,
-      "start_frame": 373525,
-      "duration_frames": 101938,
-      "overlap": false,
-      "utterance_id": "6954-76168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76168.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 170612
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.374300122800953,
-      "end_time": 31.085987817277342,
-      "duration": 1.7116876944763888,
-      "start_frame": 469988,
-      "duration_frames": 27387,
-      "overlap": true,
-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 10.472599548474498,
-      "start_time": 15.823004024503327
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-  ],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
-      "duration": 1.2095691609977324,
-      "start_time": 14.35266997076872
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5723/laugh/0048.wav",
-      "duration": 1.3024193043844592,
-      "start_time": 7.084395036397121,
-      "speaker_id": "5723"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6954/laugh/0079.wav",
-      "duration": 1.12,
-      "start_time": 8.227548141248157,
-      "speaker_id": "6954"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001361.json b/conversations/conv_001361.json
deleted file mode 100644
index 2fa64757613c3d6bc434e5ee73eabddebbe56131..0000000000000000000000000000000000000000
--- a/conversations/conv_001361.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.772421435802139,
-      "duration": 3.772421435802139,
-      "start_frame": 0,
-      "duration_frames": 60358,
-      "overlap": false,
-      "utterance_id": "3567-7276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3567-7276.flac |",
-      "real_speaker_id": "3567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.152075467755823,
-      "end_time": 10.998515791660624,
-      "duration": 6.846440323904801,
-      "start_frame": 66433,
-      "duration_frames": 109543,
-      "overlap": false,
-      "utterance_id": "4839-15307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15307.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.250214945072184,
-      "end_time": 16.17272225584397,
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-      "duration_frames": 78760,
-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.543373117532898,
-      "end_time": 22.11219521307649,
-      "duration": 5.568822095543592,
-      "start_frame": 264693,
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-      "overlap": false,
-      "utterance_id": "4839-15304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15304.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.608117746338266,
-      "end_time": 26.83116730756109,
-      "duration": 4.2230495612228225,
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-      "duration_frames": 67568,
-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 78760
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.94532235721934,
-      "end_time": 32.0,
-      "duration": 5.054677642780661,
-      "start_frame": 431125,
-      "duration_frames": 80874,
-      "overlap": false,
-      "utterance_id": "4839-15305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15305.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 2.9391697973035233
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2774/laugh/0093.wav",
-      "duration": 0.5479709482765511,
-      "start_time": 21.997248209106445,
-      "speaker_id": "2774"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2774/cough/0085.wav",
-      "duration": 0.41737175659237385,
-      "start_time": 26.844387658183418,
-      "speaker_id": "2774"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001366.json b/conversations/conv_001366.json
deleted file mode 100644
index f96419bdfae8aa5e24b53a4c338d1f1276dbc951..0000000000000000000000000000000000000000
--- a/conversations/conv_001366.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.781309755397764,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.843350309966512,
-      "duration": 3.843350309966512,
-      "start_frame": 0,
-      "duration_frames": 61493,
-      "overlap": false,
-      "utterance_id": "5979-42002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42002.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.690065772119463,
-      "end_time": 9.920974630477666,
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-      "duration_frames": 83694,
-      "overlap": false,
-      "utterance_id": "119-129513",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129513.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.376006117531913,
-      "end_time": 13.630370397466212,
-      "duration": 3.2543642799342987,
-      "start_frame": 166016,
-      "duration_frames": 52069,
-      "overlap": true,
-      "utterance_id": "3290-14909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-14909.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.58216731736884,
-      "end_time": 18.051245559623467,
-      "duration": 3.4690782422546285,
-      "start_frame": 233314,
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-      "overlap": false,
-      "utterance_id": "119-129514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129514.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.28822173269516,
-      "end_time": 24.13632888129051,
-      "duration": 5.84810714859535,
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-      "duration_frames": 93569,
-      "overlap": false,
-      "utterance_id": "3290-179163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-179163.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.44596605960558,
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-      "start_frame": 391135,
-      "duration_frames": 101365,
-      "overlap": false,
-      "utterance_id": "5979-42000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42000.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
-      "duration": 4.327483625642309,
-      "start_time": 2.052481737518877
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_001370.json b/conversations/conv_001370.json
deleted file mode 100644
index 0e1a788331af4d198143eba3bb096758161ddd5a..0000000000000000000000000000000000000000
--- a/conversations/conv_001370.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.409039319216362,
-      "duration": 5.409039319216362,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4863-24734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-24734.flac |",
-      "real_speaker_id": "4863",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.236690106732355,
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-      "duration": 5.101168787942651,
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-      "duration_frames": 81618,
-      "overlap": true,
-      "utterance_id": "8631-283727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.241203144130504,
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-      "duration": 5.122689266697435,
-      "start_frame": 195859,
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-      "utterance_id": "4863-258985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-258985.flac |",
-      "real_speaker_id": "4863",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.77397900648293,
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-      "duration_frames": 72854,
-      "overlap": false,
-      "utterance_id": "8631-281208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-281208.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.862744711122993,
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-      "utterance_id": "4863-258982",
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-      "real_speaker_id": "4863",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.356727318173398,
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-      "overlap": false,
-      "utterance_id": "8631-281208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-281208.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 72854
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.896524585028104,
-      "end_time": 32.0,
-      "duration": 1.1034754149718964,
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-      "utterance_id": "4863-32138",
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-      "real_speaker_id": "4863",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.4778637785653213,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8631/laugh/0074.wav",
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\ No newline at end of file
diff --git a/conversations/conv_001377.json b/conversations/conv_001377.json
deleted file mode 100644
index f4424eb03c458aab96fb31e6e1a4bdf5f8e3ba66..0000000000000000000000000000000000000000
--- a/conversations/conv_001377.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "3394-168627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-168627.flac |",
-      "real_speaker_id": "3394",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-168627.flac |",
-      "real_speaker_id": "3394",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.12291248986031,
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-      "duration": 3.8770875101396918,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001385.json b/conversations/conv_001385.json
deleted file mode 100644
index e5fcfd8e71461d9b0cacbaf33f5e710fa1c72234..0000000000000000000000000000000000000000
--- a/conversations/conv_001385.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.68570188461098,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6189-64708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2562-157263.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 82372
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
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-  "background_events": [
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_001389.json b/conversations/conv_001389.json
deleted file mode 100644
index 9da59f41511164678edc090e3ecd59694044738e..0000000000000000000000000000000000000000
--- a/conversations/conv_001389.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "6509",
-      "position_frames": 0
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-      "real_speaker_id": "5000",
-      "position_frames": 61127
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_001393.json b/conversations/conv_001393.json
deleted file mode 100644
index 70d4dc477244e2db40f71093c16651423bae3a88..0000000000000000000000000000000000000000
--- a/conversations/conv_001393.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.051097887882893,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.967043963219837,
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-      "utterance_id": "101-126859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126859.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/101/laugh/0079.wav",
-      "duration": 1.24,
-      "start_time": 29.489504073820555,
-      "speaker_id": "101"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001398.json b/conversations/conv_001398.json
deleted file mode 100644
index 34deb506bb94f7e16521a4b835b42e94f4177d73..0000000000000000000000000000000000000000
--- a/conversations/conv_001398.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.0998303772995754,
-      "duration": 4.0998303772995754,
-      "start_frame": 0,
-      "duration_frames": 65597,
-      "overlap": false,
-      "utterance_id": "8705-290361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290361.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8416115059392624,
-      "end_time": 7.034952016435335,
-      "duration": 3.1933405104960735,
-      "start_frame": 61465,
-      "duration_frames": 51093,
-      "overlap": true,
-      "utterance_id": "7883-113275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113275.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.468914669285397,
-      "end_time": 15.079758342594854,
-      "duration": 6.610843673309457,
-      "start_frame": 135502,
-      "duration_frames": 105773,
-      "overlap": false,
-      "utterance_id": "8705-290363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.336863513112268,
-      "end_time": 19.939730389152725,
-      "duration": 4.602866876040456,
-      "start_frame": 245389,
-      "duration_frames": 73645,
-      "overlap": true,
-      "utterance_id": "4967-28868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-28868.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.384810041117596,
-      "end_time": 27.580688695832293,
-      "duration": 6.195878654714697,
-      "start_frame": 342156,
-      "duration_frames": 99134,
-      "overlap": true,
-      "utterance_id": "8705-290363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 105773
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.754499283177967,
-      "end_time": 32.0,
-      "duration": 3.2455007168220327,
-      "start_frame": 460071,
-      "duration_frames": 51928,
-      "overlap": false,
-      "utterance_id": "7883-113275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113275.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 51093
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.7809447221089822,
-      "start_time": 19.474436362438727
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_001405.json b/conversations/conv_001405.json
deleted file mode 100644
index 8fa39cce9ca3c031c0dcd7b405346b8369d5e209..0000000000000000000000000000000000000000
--- a/conversations/conv_001405.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.23495059819147,
-      "duration": 6.23495059819147,
-      "start_frame": 0,
-      "duration_frames": 99759,
-      "overlap": false,
-      "utterance_id": "403-126855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.580902479187027,
-      "end_time": 10.174993018224654,
-      "duration": 3.5940905390376274,
-      "start_frame": 105294,
-      "duration_frames": 57505,
-      "overlap": false,
-      "utterance_id": "2060-150855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2060-150855.flac |",
-      "real_speaker_id": "2060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.240435470052226,
-      "end_time": 14.81627661779287,
-      "duration": 3.5758411477406438,
-      "start_frame": 179846,
-      "duration_frames": 57213,
-      "overlap": true,
-      "utterance_id": "403-126855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 99759
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.51631588236902,
-      "end_time": 21.97799377297878,
-      "duration": 5.46167789060976,
-      "start_frame": 264261,
-      "duration_frames": 87386,
-      "overlap": false,
-      "utterance_id": "2544-3070",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-3070.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.351884662768995,
-      "end_time": 26.702958715359408,
-      "duration": 4.351074052590414,
-      "start_frame": 357630,
-      "duration_frames": 69617,
-      "overlap": false,
-      "utterance_id": "2544-27475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-27475.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.235265619275175,
-      "end_time": 32.0,
-      "duration": 4.764734380724825,
-      "start_frame": 435764,
-      "duration_frames": 76235,
-      "overlap": false,
-      "utterance_id": "2060-150843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2060-150843.flac |",
-      "real_speaker_id": "2060",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 19.719464687979006
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
-      "duration": 0.7175510204081633,
-      "start_time": 8.782999271472505
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.4810241834078122,
-      "start_time": 21.575416546268144
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/403/laugh/0053.wav",
-      "duration": 1.36,
-      "start_time": 0.19395096575689535,
-      "speaker_id": "403"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/403/cough/0006.wav",
-      "duration": 0.7806945918892909,
-      "start_time": 12.28058887910753,
-      "speaker_id": "403"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2544/cough/0082.wav",
-      "duration": 0.7424341811646968,
-      "start_time": 22.091359204917506,
-      "speaker_id": "2544"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2544/cough/0098.wav",
-      "duration": 0.7490658414793125,
-      "start_time": 26.738086761506608,
-      "speaker_id": "2544"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001408.json b/conversations/conv_001408.json
deleted file mode 100644
index 4dc03b067293220e71911d89d8a2eab4a65d24b0..0000000000000000000000000000000000000000
--- a/conversations/conv_001408.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.363285812720269,
-      "duration": 6.363285812720269,
-      "start_frame": 0,
-      "duration_frames": 101812,
-      "overlap": false,
-      "utterance_id": "8063-274116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274116.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.376351773859249,
-      "end_time": 11.03158534474932,
-      "duration": 4.65523357089007,
-      "start_frame": 102021,
-      "duration_frames": 74483,
-      "overlap": true,
-      "utterance_id": "8063-274117",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274117.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.269719021810037,
-      "end_time": 16.341174253540004,
-      "duration": 4.071455231729965,
-      "start_frame": 196315,
-      "duration_frames": 65143,
-      "overlap": false,
-      "utterance_id": "6818-76332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.75572833659039,
-      "end_time": 21.376329336449178,
-      "duration": 4.620600999858787,
-      "start_frame": 268091,
-      "duration_frames": 73929,
-      "overlap": false,
-      "utterance_id": "6818-76332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 65143
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.332357426541517,
-      "end_time": 27.430644586117584,
-      "duration": 5.098287159576067,
-      "start_frame": 357317,
-      "duration_frames": 81572,
-      "overlap": false,
-      "utterance_id": "6818-68772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.63978063646893,
-      "end_time": 32.0,
-      "duration": 4.360219363531069,
-      "start_frame": 442236,
-      "duration_frames": 69763,
-      "overlap": false,
-      "utterance_id": "6818-76332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 139072
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
-      "duration": 3.610519203581339,
-      "start_time": 15.049744991140269
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6818/laugh/0000.wav",
-      "duration": 1.24,
-      "start_time": 15.240368108639903,
-      "speaker_id": "6818"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6818/cough/0055.wav",
-      "duration": 0.92,
-      "start_time": 26.629749508676955,
-      "speaker_id": "6818"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001409.json b/conversations/conv_001409.json
deleted file mode 100644
index 61b0818a81bec2aa05ad932188358335693843b7..0000000000000000000000000000000000000000
--- a/conversations/conv_001409.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.171747005037194,
-      "duration": 6.171747005037194,
-      "start_frame": 0,
-      "duration_frames": 98747,
-      "overlap": false,
-      "utterance_id": "7766-109658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-109658.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.063644335322324,
-      "end_time": 9.873215222073268,
-      "duration": 3.8095708867509446,
-      "start_frame": 97018,
-      "duration_frames": 60953,
-      "overlap": true,
-      "utterance_id": "2740-288813",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-288813.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.795560098832294,
-      "end_time": 16.84652995547687,
-      "duration": 6.050969856644578,
-      "start_frame": 172728,
-      "duration_frames": 96815,
-      "overlap": false,
-      "utterance_id": "2740-162051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.103401656670314,
-      "end_time": 23.149610876646875,
-      "duration": 6.046209219976562,
-      "start_frame": 273654,
-      "duration_frames": 96739,
-      "overlap": false,
-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.59748819543532,
-      "end_time": 27.918027654889613,
-      "duration": 4.320539459454291,
-      "start_frame": 377559,
-      "duration_frames": 69128,
-      "overlap": true,
-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 96739
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.529244843628508,
-      "end_time": 32.0,
-      "duration": 3.4707551563714922,
-      "start_frame": 456467,
-      "duration_frames": 55532,
-      "overlap": false,
-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
-      "duration": 1.805348546290948,
-      "start_time": 18.022346850106274
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7766/laugh/0022.wav",
-      "duration": 1.2667064766742626,
-      "start_time": 6.196705266073536,
-      "speaker_id": "7766"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2740/cough/0058.wav",
-      "duration": 0.4409320440909838,
-      "start_time": 11.682475654619429,
-      "speaker_id": "2740"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7766/cough/0061.wav",
-      "duration": 0.691162248686291,
-      "start_time": 23.229459481387778,
-      "speaker_id": "7766"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001413.json b/conversations/conv_001413.json
deleted file mode 100644
index e816d7a122fd2ad0131e814c4fdedbb37e972aec..0000000000000000000000000000000000000000
--- a/conversations/conv_001413.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.779397438653348,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.564197633846958,
-      "duration": 4.564197633846958,
-      "start_frame": 0,
-      "duration_frames": 73027,
-      "overlap": false,
-      "utterance_id": "7717-104491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7717-104491.flac |",
-      "real_speaker_id": "7717",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.465748359111045,
-      "end_time": 11.86833854232664,
-      "duration": 6.402590183215594,
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-      "overlap": false,
-      "utterance_id": "1777-142745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142745.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.217611897497129,
-      "end_time": 18.974974783754863,
-      "duration": 6.757362886257734,
-      "start_frame": 195481,
-      "duration_frames": 108117,
-      "overlap": true,
-      "utterance_id": "7389-292563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-292563.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.756430579472504,
-      "end_time": 26.174897682159333,
-      "duration": 6.418467102686831,
-      "start_frame": 316102,
-      "duration_frames": 102695,
-      "overlap": false,
-      "utterance_id": "1777-142745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142745.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 102441
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.67553295268486,
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-      "duration": 5.103864485968488,
-      "start_frame": 426808,
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-      "utterance_id": "7389-295014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-295014.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
-      "duration": 0.5608390022675737,
-      "start_time": 0.150946261739706
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_14.wav",
-      "duration": 0.11190476190476191,
-      "start_time": 20.964456826706673
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_001418.json b/conversations/conv_001418.json
deleted file mode 100644
index 205642ea27ca691c55b065536390cb78b87b1f38..0000000000000000000000000000000000000000
--- a/conversations/conv_001418.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.125947683933094,
-      "duration": 5.125947683933094,
-      "start_frame": 0,
-      "duration_frames": 82015,
-      "overlap": false,
-      "utterance_id": "6753-76097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76097.flac |",
-      "real_speaker_id": "6753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.933965441050364,
-      "end_time": 11.649330631842854,
-      "duration": 5.7153651907924905,
-      "start_frame": 94943,
-      "duration_frames": 91445,
-      "overlap": false,
-      "utterance_id": "2518-154826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154826.flac |",
-      "real_speaker_id": "2518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.658736373625018,
-      "end_time": 17.807936152329745,
-      "duration": 5.149199778704727,
-      "start_frame": 202539,
-      "duration_frames": 82387,
-      "overlap": false,
-      "utterance_id": "2270-156684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-156684.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.14689802882358,
-      "end_time": 24.017771636195956,
-      "duration": 5.870873607372378,
-      "start_frame": 290350,
-      "duration_frames": 93933,
-      "overlap": false,
-      "utterance_id": "6753-76098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76098.flac |",
-      "real_speaker_id": "6753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.98107637809442,
-      "end_time": 28.75712801967358,
-      "duration": 4.77605164157916,
-      "start_frame": 383697,
-      "duration_frames": 76416,
-      "overlap": true,
-      "utterance_id": "2270-156683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-156683.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.89357978576394,
-      "end_time": 32.0,
-      "duration": 2.10642021423606,
-      "start_frame": 478297,
-      "duration_frames": 33702,
-      "overlap": false,
-      "utterance_id": "2270-156683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-156683.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 76416
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
-      "duration": 18.20948901129002,
-      "start_time": 11.664219205603368
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_6.wav",
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-      "start_time": 8.712504515027245
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2518/cough/0068.wav",
-      "duration": 1.0214650500467617,
-      "start_time": 4.724544294430706,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6753/laugh/0011.wav",
-      "duration": 0.8778162550314149,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2270/laugh/0074.wav",
-      "duration": 0.8854164839135645,
-      "start_time": 28.828650463574476,
-      "speaker_id": "2270"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2270/cough/0102.wav",
-      "duration": 0.861542243533516,
-      "start_time": 30.885054836438517,
-      "speaker_id": "2270"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001424.json b/conversations/conv_001424.json
deleted file mode 100644
index 046af8cfd4e4cf00098c0b385c657ba68c0e7f00..0000000000000000000000000000000000000000
--- a/conversations/conv_001424.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.2412706628143235,
-      "duration": 3.2412706628143235,
-      "start_frame": 0,
-      "duration_frames": 51860,
-      "overlap": false,
-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.144574480407589,
-      "end_time": 10.12716868356678,
-      "duration": 5.982594203159191,
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-      "duration_frames": 95721,
-      "overlap": false,
-      "utterance_id": "6539-66421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66421.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.431356522159145,
-      "end_time": 15.864159822150794,
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-      "start_frame": 166901,
-      "duration_frames": 86924,
-      "overlap": false,
-      "utterance_id": "6539-66420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66420.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.64622860777239,
-      "end_time": 20.298480036798978,
-      "duration": 4.652251429026588,
-      "start_frame": 250339,
-      "duration_frames": 74436,
-      "overlap": true,
-      "utterance_id": "6539-66420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66420.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 86924
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.41139955508263,
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-      "duration": 4.873452763873457,
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-      "overlap": false,
-      "utterance_id": "7460-92002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-92002.flac |",
-      "real_speaker_id": "7460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.81896389443427,
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-      "duration_frames": 60336,
-      "overlap": false,
-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 51860
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.073136501480555,
-      "end_time": 32.0,
-      "duration": 0.9268634985194453,
-      "start_frame": 497170,
-      "duration_frames": 14829,
-      "overlap": false,
-      "utterance_id": "6539-66420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66420.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 161360
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
-      "duration": 24.63777692470985,
-      "start_time": 1.6398751443705368
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "start_time": 31.09612518137962
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
-      "duration": 0.31501133786848073,
-      "start_time": 13.319882211057557
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6539/laugh/0099.wav",
-      "duration": 1.28,
-      "start_time": 10.369652527775408,
-      "speaker_id": "6539"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5883/cough/0008.wav",
-      "duration": 0.9226416457115609,
-      "start_time": 28.287306672222112,
-      "speaker_id": "5883"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001425.json b/conversations/conv_001425.json
deleted file mode 100644
index 2043d46510aa130fb004f11181475a10783fed5f..0000000000000000000000000000000000000000
--- a/conversations/conv_001425.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.5517197519364,
-      "duration": 5.5517197519364,
-      "start_frame": 0,
-      "duration_frames": 88827,
-      "overlap": false,
-      "utterance_id": "5319-84357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-84357.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.565013532454545,
-      "end_time": 10.031240505339927,
-      "duration": 3.466226972885382,
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-      "overlap": false,
-      "utterance_id": "3380-64298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3380-64298.flac |",
-      "real_speaker_id": "3380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.795663210914755,
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-      "overlap": false,
-      "utterance_id": "5319-64075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-64075.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.219578621217572,
-      "end_time": 20.749809445863292,
-      "duration": 6.530230824645722,
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-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.61317109425522,
-      "end_time": 26.303901115933737,
-      "duration": 4.690730021678515,
-      "start_frame": 345810,
-      "duration_frames": 75051,
-      "overlap": false,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 104483
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.893870585426416,
-      "end_time": 32.0,
-      "duration": 5.106129414573584,
-      "start_frame": 430301,
-      "duration_frames": 81698,
-      "overlap": false,
-      "utterance_id": "5319-84357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-84357.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 88827
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
-      "duration": 20.061201814058958,
-      "start_time": 6.228493600985251
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_0.wav",
-      "duration": 3.735442176870748,
-      "start_time": 9.177487759600139
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/583/cough/0031.wav",
-      "duration": 0.6083441019384632,
-      "start_time": 23.43484897351912,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5319/cough/0042.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "5319"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001429.json b/conversations/conv_001429.json
deleted file mode 100644
index 38fa859b1c7b9da4db5723e8b3b60b22539460fe..0000000000000000000000000000000000000000
--- a/conversations/conv_001429.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.437208601111628,
-      "duration": 5.437208601111628,
-      "start_frame": 0,
-      "duration_frames": 86995,
-      "overlap": false,
-      "utterance_id": "1819-144391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144391.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "1819",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.642695682609485,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135068.flac |",
-      "real_speaker_id": "1200",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_001433.json b/conversations/conv_001433.json
deleted file mode 100644
index 4b0b1f60e1191265beafb841700bad82831fa20b..0000000000000000000000000000000000000000
--- a/conversations/conv_001433.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1977-133046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.6310459394044035,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61803.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
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-      "utterance_id": "1977-133046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 103940
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-      "speaker_id": 2,
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-      "utterance_id": "6836-61804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61804.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 26.609992421788327,
-      "end_time": 29.92528006506228,
-      "duration": 3.3152876432739546,
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-      "overlap": false,
-      "utterance_id": "1225-129527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129527.flac |",
-      "real_speaker_id": "1225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.039926679331117,
-      "end_time": 32.0,
-      "duration": 0.960073320668883,
-      "start_frame": 496638,
-      "duration_frames": 15361,
-      "overlap": false,
-      "utterance_id": "1977-133046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 188913
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1977/laugh/0075.wav",
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-      "speaker_id": "1977"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001444.json b/conversations/conv_001444.json
deleted file mode 100644
index af0ee008314e2079be3cddfa67330173f360936a..0000000000000000000000000000000000000000
--- a/conversations/conv_001444.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.445216954217404,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4235-7632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7632.flac |",
-      "real_speaker_id": "4235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.864750776497171,
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-      "overlap": false,
-      "utterance_id": "684-141263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-141263.flac |",
-      "real_speaker_id": "684",
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-      "utterance_id": "4235-7633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7633.flac |",
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-      "utterance_id": "1559-139353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "4235-7631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7631.flac |",
-      "real_speaker_id": "4235",
-      "position_frames": 88911
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1559/cough/0063.wav",
-      "duration": 1.4135247621521734,
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-      "speaker_id": "1559"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001448.json b/conversations/conv_001448.json
deleted file mode 100644
index ab3f160b29840a2fef50ee9d8846b634a9f9649d..0000000000000000000000000000000000000000
--- a/conversations/conv_001448.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.981045741765933,
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-      "overlap": false,
-      "utterance_id": "511-131228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131228.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.4463000891704425,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
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-      "overlap": true,
-      "utterance_id": "511-131228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131228.flac |",
-      "real_speaker_id": "511",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.05750112891145,
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-      "utterance_id": "3125-163698",
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-      "real_speaker_id": "3125",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131228.flac |",
-      "real_speaker_id": "511",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "511-131226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131226.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.061458508333946,
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-      "duration": 1.9385414916660544,
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-      "utterance_id": "3314-138053",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-138053.flac |",
-      "real_speaker_id": "3314",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3125/laugh/0114.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/511/cough/0019.wav",
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-      "start_time": 29.872731163187975,
-      "speaker_id": "511"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001452.json b/conversations/conv_001452.json
deleted file mode 100644
index 66779e889053e2ef28cc205cccd6ceb4af0fd562..0000000000000000000000000000000000000000
--- a/conversations/conv_001452.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.41352489056905,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "6557",
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-      "real_speaker_id": "4681",
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-      "segment_id": "seg0002",
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-      "segment_id": "seg0003",
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-      "position_frames": 95217
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "speaker_id": "4681"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_001459.json b/conversations/conv_001459.json
deleted file mode 100644
index bdc1b032c87212193ee87f79ed9002dbab894fb9..0000000000000000000000000000000000000000
--- a/conversations/conv_001459.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
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-      "start_time": 0.0,
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-      "utterance_id": "3070-166421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166421.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.998853133086058,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "5390-30102",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.233363477340568,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 87289
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.20963505842581,
-      "end_time": 26.911610429610754,
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-      "utterance_id": "3070-166423",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166423.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.368141679951588,
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-      "duration": 4.631858320048412,
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-      "overlap": false,
-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 160390
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.06,
-      "start_time": 26.202128314674457,
-      "speaker_id": "6620"
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\ No newline at end of file
diff --git a/conversations/conv_001464.json b/conversations/conv_001464.json
deleted file mode 100644
index 00b428442f3b020798bd4610bba692999d8fe982..0000000000000000000000000000000000000000
--- a/conversations/conv_001464.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.026047083745024,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 53849
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 65498
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.10478627024122,
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 152499
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
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-      "position_frames": 223372
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001468.json b/conversations/conv_001468.json
deleted file mode 100644
index 3adcea0e4248d51e33bd5ad19ef6cfe57784ce9d..0000000000000000000000000000000000000000
--- a/conversations/conv_001468.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.759753824072547,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8012-273137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273137.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4991-6181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4991-6181.flac |",
-      "real_speaker_id": "4991",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4991-6181.flac |",
-      "real_speaker_id": "4991",
-      "position_frames": 63360
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8012",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.47847024593077,
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-      "duration": 5.281283578141779,
-      "start_frame": 423655,
-      "duration_frames": 84500,
-      "overlap": false,
-      "utterance_id": "7848-275169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275169.flac |",
-      "real_speaker_id": "7848",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8012/cough/0009.wav",
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001472.json b/conversations/conv_001472.json
deleted file mode 100644
index 2b577125a55deb86b5e90431dd7301709c42a2c5..0000000000000000000000000000000000000000
--- a/conversations/conv_001472.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.151426330408477,
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-      "utterance_id": "3757-134143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134143.flac |",
-      "real_speaker_id": "3757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4017-231846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-231846.flac |",
-      "real_speaker_id": "4017",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134143.flac |",
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-      "real_speaker_id": "4017",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-231846.flac |",
-      "real_speaker_id": "4017",
-      "position_frames": 88069
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-  "background_events": [
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-      "speaker_id": "3757"
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-      "event_class": "laugh",
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-      "duration": 0.9330883462467456,
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-      "speaker_id": "6189"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001473.json b/conversations/conv_001473.json
deleted file mode 100644
index a6cfb6c7c74421d069265616683058ee81ec596d..0000000000000000000000000000000000000000
--- a/conversations/conv_001473.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.967856970494253,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.2473630679126355,
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-      "overlap": false,
-      "utterance_id": "8770-295462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295462.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.019167825855142,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "8770-295462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295462.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 67957
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.5666654536917,
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-      "utterance_id": "663-128991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128991.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.438358113983615,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128991.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 88222
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 92370
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "663"
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\ No newline at end of file
diff --git a/conversations/conv_001487.json b/conversations/conv_001487.json
deleted file mode 100644
index 7b987c7767132006774582c9b4f12d10ceba46f2..0000000000000000000000000000000000000000
--- a/conversations/conv_001487.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.207828115853076,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-1196.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14486.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "5045",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14486.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 65564
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_001491.json b/conversations/conv_001491.json
deleted file mode 100644
index f6b578710e6ff9a5c06f68d6c7862952b98fc311..0000000000000000000000000000000000000000
--- a/conversations/conv_001491.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.812954139743965,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4358-44937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-44937.flac |",
-      "real_speaker_id": "4358",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-20034.flac |",
-      "real_speaker_id": "4358",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4839-15305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15305.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "4358",
-      "position_frames": 94085
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4839-15307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15307.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.378695053269603,
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-      "utterance_id": "4839-15307",
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-      "real_speaker_id": "4839",
-      "position_frames": 69917
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4358/laugh/0060.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001501.json b/conversations/conv_001501.json
deleted file mode 100644
index da56d7439cda47332fc628aa3dd3ca0e46301f56..0000000000000000000000000000000000000000
--- a/conversations/conv_001501.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.935675469578376,
-      "duration": 3.935675469578376,
-      "start_frame": 0,
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-      "utterance_id": "7338-92154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92154.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.637037113259865,
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-      "duration_frames": 84485,
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-      "utterance_id": "8543-280375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 80259
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.656762937040867,
-      "end_time": 32.0,
-      "duration": 0.34323706295913325,
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-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 150181
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-      "speaker_id": "2068"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001517.json b/conversations/conv_001517.json
deleted file mode 100644
index 376f4484d9c810d60950d42a75f4c256e30c78bd..0000000000000000000000000000000000000000
--- a/conversations/conv_001517.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-129808.flac |",
-      "real_speaker_id": "1283",
-      "position_frames": 0
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-      "start_time": 4.9333982492453075,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-114605.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-129808.flac |",
-      "real_speaker_id": "1283",
-      "position_frames": 78663
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-114606.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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\ No newline at end of file
diff --git a/conversations/conv_001521.json b/conversations/conv_001521.json
deleted file mode 100644
index 40eb0447e2c4add80314ae6b173e3fad4fb23a9c..0000000000000000000000000000000000000000
--- a/conversations/conv_001521.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "utterance_id": "1363-135842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 0
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 76478
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-      "real_speaker_id": "1363",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001536.json b/conversations/conv_001536.json
deleted file mode 100644
index a71ff2a63649e9e53dfbd4b254f050ca57af21fc..0000000000000000000000000000000000000000
--- a/conversations/conv_001536.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.12156003988975,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "3245-62828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-62828.flac |",
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-      "position_frames": 0
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6437/laugh/0002.wav",
-      "duration": 1.0185447887295656,
-      "start_time": 29.351070808486366,
-      "speaker_id": "6437"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6978/cough/0064.wav",
-      "duration": 0.8445209379323766,
-      "start_time": 28.195380761182417,
-      "speaker_id": "6978"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001537.json b/conversations/conv_001537.json
deleted file mode 100644
index 0c442ee5ea749c81ff3118be343bb5b9f89ca95c..0000000000000000000000000000000000000000
--- a/conversations/conv_001537.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.43258438872863,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.225818825925308,
-      "duration": 3.225818825925308,
-      "start_frame": 0,
-      "duration_frames": 51613,
-      "overlap": false,
-      "utterance_id": "55-121068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121068.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.4722810731920353,
-      "end_time": 7.4395893251331575,
-      "duration": 3.9673082519411222,
-      "start_frame": 55556,
-      "duration_frames": 63476,
-      "overlap": false,
-      "utterance_id": "2194-141248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141248.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.112414927726281,
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-      "duration": 5.412508264519903,
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-      "duration_frames": 86600,
-      "overlap": false,
-      "utterance_id": "55-121069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.571520222003752,
-      "end_time": 19.13559770310902,
-      "duration": 5.564077481105268,
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-      "duration_frames": 89025,
-      "overlap": true,
-      "utterance_id": "5765-231845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5765-231845.flac |",
-      "real_speaker_id": "5765",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.490828045696357,
-      "end_time": 25.745379848980747,
-      "duration": 5.254551803284389,
-      "start_frame": 327853,
-      "duration_frames": 84072,
-      "overlap": false,
-      "utterance_id": "2194-141235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141235.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.113961871527696,
-      "end_time": 30.43258438872863,
-      "duration": 5.318622517200931,
-      "start_frame": 401823,
-      "duration_frames": 85097,
-      "overlap": true,
-      "utterance_id": "55-121069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 86600
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
-      "duration": 27.40257468039264,
-      "start_time": 4.208915251235857
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 4.467619047619047,
-      "start_time": 23.535309455532534
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.615653344782972,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/55/laugh/0107.wav",
-      "duration": 1.12,
-      "start_time": 8.342720129194642,
-      "speaker_id": "55"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5765/cough/0043.wav",
-      "duration": 1.18,
-      "start_time": 19.239388426082737,
-      "speaker_id": "5765"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2194/cough/0095.wav",
-      "duration": 0.7258668215004971,
-      "start_time": 19.63212279722628,
-      "speaker_id": "2194"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001540.json b/conversations/conv_001540.json
deleted file mode 100644
index b982cf5009ea7840b0024b564854122c970ba950..0000000000000000000000000000000000000000
--- a/conversations/conv_001540.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.4882103997207845,
-      "duration": 3.4882103997207845,
-      "start_frame": 0,
-      "duration_frames": 55811,
-      "overlap": false,
-      "utterance_id": "62-121084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.268832751438225,
-      "end_time": 8.83355663248895,
-      "duration": 4.564723881050725,
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-      "utterance_id": "5935-55927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-55927.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.859426787227417,
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-      "duration_frames": 98539,
-      "overlap": false,
-      "utterance_id": "3790-140725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.506472484209645,
-      "end_time": 21.316805979991045,
-      "duration": 4.810333495781401,
-      "start_frame": 264103,
-      "duration_frames": 76965,
-      "overlap": false,
-      "utterance_id": "5935-43322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-43322.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.940879386642095,
-      "end_time": 27.0537061032015,
-      "duration": 5.112826716559404,
-      "start_frame": 351054,
-      "duration_frames": 81805,
-      "overlap": false,
-      "utterance_id": "3790-140725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 98539
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.569812381756073,
-      "end_time": 32.0,
-      "duration": 4.430187618243927,
-      "start_frame": 441116,
-      "duration_frames": 70883,
-      "overlap": false,
-      "utterance_id": "62-121084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 55811
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
-      "start_time": 14.655903449191326
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
-      "duration": 0.29401360544217686,
-      "start_time": 24.2890016951029
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/62/laugh/0050.wav",
-      "duration": 0.892824775954709,
-      "start_time": 0,
-      "speaker_id": "62"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5935/laugh/0007.wav",
-      "duration": 1.28,
-      "start_time": 2.733619951969599,
-      "speaker_id": "5935"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/laugh/0036.wav",
-      "duration": 1.6028272589717802,
-      "start_time": 10.98304919389884,
-      "speaker_id": "3790"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/cough/0086.wav",
-      "duration": 0.4783432231863011,
-      "start_time": 27.169571768107442,
-      "speaker_id": "3790"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/62/cough/0005.wav",
-      "duration": 0.8333856844322374,
-      "start_time": 26.63520759780625,
-      "speaker_id": "62"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001556.json b/conversations/conv_001556.json
deleted file mode 100644
index cf1042235b5feccd159bd514d4f5c566c52032d8..0000000000000000000000000000000000000000
--- a/conversations/conv_001556.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.793502142357533,
-      "duration": 5.793502142357533,
-      "start_frame": 0,
-      "duration_frames": 92696,
-      "overlap": false,
-      "utterance_id": "5983-39666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39666.flac |",
-      "real_speaker_id": "5983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.105299692136945,
-      "end_time": 11.02645168505354,
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-      "duration_frames": 78738,
-      "overlap": false,
-      "utterance_id": "5684-46240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5684-46240.flac |",
-      "real_speaker_id": "5684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "5983-39652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39652.flac |",
-      "real_speaker_id": "5983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.650274430346204,
-      "end_time": 24.640365259978665,
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-      "overlap": false,
-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.22036601877337,
-      "end_time": 30.757403162727073,
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-      "utterance_id": "5684-46240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5684-46240.flac |",
-      "real_speaker_id": "5684",
-      "position_frames": 78738
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.209234514479665,
-      "end_time": 32.0,
-      "duration": 0.7907654855203354,
-      "start_frame": 499347,
-      "duration_frames": 12652,
-      "overlap": false,
-      "utterance_id": "5983-39666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39666.flac |",
-      "real_speaker_id": "5983",
-      "position_frames": 92696
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 6.0702221421869105,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5684/laugh/0109.wav",
-      "duration": 1.28,
-      "start_time": 9.584657532403007,
-      "speaker_id": "5684"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5983/laugh/0047.wav",
-      "duration": 1.08,
-      "start_time": 17.391426466841246,
-      "speaker_id": "5983"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5684/laugh/0075.wav",
-      "duration": 1.735233261809469,
-      "start_time": 23.23429744770632,
-      "speaker_id": "5684"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001560.json b/conversations/conv_001560.json
deleted file mode 100644
index 904ea6909d484a12ae1b2d63aa7f7104b5a01366..0000000000000000000000000000000000000000
--- a/conversations/conv_001560.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.682646897212203,
-      "duration": 4.682646897212203,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3257-169288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169288.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.085086041620184,
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-      "duration": 3.185956294882375,
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-      "duration_frames": 50975,
-      "overlap": true,
-      "utterance_id": "608-123155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123155.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.260574124261943,
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-      "duration": 6.559926508815821,
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-      "overlap": false,
-      "utterance_id": "608-123154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123154.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.158621684163435,
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-      "utterance_id": "3905-149791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 19.87892247712368,
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-      "position_frames": 50975
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169288.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 74922
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-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "608"
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-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 14.179653851653809,
-      "speaker_id": "3905"
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_001561.json b/conversations/conv_001561.json
deleted file mode 100644
index 31fc941bed70788d68b0028dec49539fb9dc90a4..0000000000000000000000000000000000000000
--- a/conversations/conv_001561.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.822537194203683,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2751-142362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142362.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "5340-8682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8682.flac |",
-      "real_speaker_id": "5340",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.622062146116068,
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-      "duration_frames": 99267,
-      "overlap": false,
-      "utterance_id": "2751-142362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142362.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 82782
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.41830866342252,
-      "end_time": 27.174483901715938,
-      "duration": 6.756175238293418,
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-      "duration_frames": 108098,
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-      "utterance_id": "1815-143388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143388.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.51925257825159,
-      "end_time": 31.822537194203683,
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-      "utterance_id": "5340-8685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8685.flac |",
-      "real_speaker_id": "5340",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_14.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "5340"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001576.json b/conversations/conv_001576.json
deleted file mode 100644
index 7f1390821a546ab721e24edaa0e4d9648e5daba3..0000000000000000000000000000000000000000
--- a/conversations/conv_001576.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.62629385521322,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-135249.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7198",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-139314.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 100356
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-    {
-      "segment_id": "seg0004",
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-      "end_time": 26.650003686859748,
-      "duration": 3.567173098634485,
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-      "overlap": false,
-      "utterance_id": "7198-80654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80654.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.170047461051116,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-135249.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 65058
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001583.json b/conversations/conv_001583.json
deleted file mode 100644
index dba271477daff8f020689b2cb5fdc01bf84e7565..0000000000000000000000000000000000000000
--- a/conversations/conv_001583.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73974.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "4969",
-      "position_frames": 65733
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "4969-58757",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_2.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001595.json b/conversations/conv_001595.json
deleted file mode 100644
index 2a38f4e26204693f67c68658f30b5de99799c0c5..0000000000000000000000000000000000000000
--- a/conversations/conv_001595.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.560192116624773,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5979-42000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42000.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.196458245992927,
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-      "real_speaker_id": "8328",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42000.flac |",
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-      "position_frames": 96421
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47032.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.25606492094486,
-      "end_time": 31.560192116624773,
-      "duration": 2.3041271956799143,
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-      "duration_frames": 36866,
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-      "utterance_id": "8328-280925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
-      "position_frames": 192887
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
-      "duration": 0.2440362811791383,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5979/laugh/0074.wav",
-      "duration": 0.98,
-      "start_time": 0,
-      "speaker_id": "5979"
-    },
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5979/laugh/0119.wav",
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-      "duration": 1.28,
-      "start_time": 17.164795900977445,
-      "speaker_id": "8328"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5727/laugh/0086.wav",
-      "duration": 0.84,
-      "start_time": 25.148646831141075,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "8328"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001599.json b/conversations/conv_001599.json
deleted file mode 100644
index 14eec44b69a2d4d59140ce907f6bf353455e9473..0000000000000000000000000000000000000000
--- a/conversations/conv_001599.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5306193250810995,
-      "duration": 3.5306193250810995,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3490-177641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177641.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.650584346106727,
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-      "duration": 4.487591368151083,
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-      "utterance_id": "2289-152257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152257.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.898361408554735,
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-      "duration_frames": 94915,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-145077.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.109092551305396,
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-      "utterance_id": "3490-177627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177627.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.615023268619566,
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-      "utterance_id": "1084-151395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-151395.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.535627457072795,
-      "end_time": 29.44722504801949,
-      "duration": 4.911597590946693,
-      "start_frame": 392570,
-      "duration_frames": 78585,
-      "overlap": false,
-      "utterance_id": "3490-177638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177638.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.853398410983907,
-      "end_time": 32.0,
-      "duration": 2.146601589016093,
-      "start_frame": 477654,
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-      "utterance_id": "1084-151395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-151395.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 85747
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001604.json b/conversations/conv_001604.json
deleted file mode 100644
index a66a9af9d0f068f6cb08242f8e4cd446e7af523b..0000000000000000000000000000000000000000
--- a/conversations/conv_001604.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.064863181101365,
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-      "start_frame": 0,
-      "duration_frames": 65037,
-      "overlap": false,
-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.6170151085751865,
-      "end_time": 8.529381605379172,
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-      "overlap": false,
-      "utterance_id": "3557-8341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8341.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 65037
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.82571703507522,
-      "end_time": 16.826886175084404,
-      "duration": 3.0011691400091838,
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-      "overlap": false,
-      "utterance_id": "3557-8341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8341.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 62597
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 17.895186892666114,
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-      "duration": 6.29377773736775,
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-      "overlap": false,
-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 123207
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.947401359635563,
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-      "duration": 5.580739306842848,
-      "start_frame": 399158,
-      "duration_frames": 89291,
-      "overlap": false,
-      "utterance_id": "2751-142363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.244264806961006,
-      "end_time": 32.0,
-      "duration": 0.7557351930389942,
-      "start_frame": 499908,
-      "duration_frames": 12091,
-      "overlap": false,
-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 223907
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 21.05861678004535,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.656560123482443,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
-      "duration": 1.0019274376417233,
-      "start_time": 29.25113019040514
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3557/cough/0122.wav",
-      "duration": 1.0540579913603692,
-      "start_time": 16.896497085595733,
-      "speaker_id": "3557"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2751/laugh/0074.wav",
-      "duration": 1.0,
-      "start_time": 30.70453143621898,
-      "speaker_id": "2751"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001608.json b/conversations/conv_001608.json
deleted file mode 100644
index 8c0632b4371c3427902ec28afca7231473bf9eea..0000000000000000000000000000000000000000
--- a/conversations/conv_001608.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.552576638066493,
-      "duration": 4.552576638066493,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3857-180923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.2591069006089,
-      "end_time": 9.663190429971166,
-      "duration": 4.404083529362265,
-      "start_frame": 84145,
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-      "overlap": false,
-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.823147468690467,
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-      "duration_frames": 76766,
-      "overlap": true,
-      "utterance_id": "3857-180923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 72841
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.47098301620941,
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-      "duration": 3.7673368387352326,
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-      "duration_frames": 60277,
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-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 70465
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 19.84202038437837,
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-      "utterance_id": "3857-182315",
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-      "real_speaker_id": "3857",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 87695,
-      "overlap": true,
-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 130742
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 0.9342543074089065,
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-      "overlap": false,
-      "utterance_id": "3857-182317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182317.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
-      "duration": 1.5510979352258416,
-      "start_time": 6.2220061011486125
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3857/laugh/0096.wav",
-      "duration": 0.8138765102461097,
-      "start_time": 1.476128448643954,
-      "speaker_id": "3857"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3857/cough/0087.wav",
-      "duration": 0.8604947925100985,
-      "start_time": 8.837098865770468,
-      "speaker_id": "3857"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7391/laugh/0152.wav",
-      "duration": 1.28,
-      "start_time": 17.221251885520196,
-      "speaker_id": "7391"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001612.json b/conversations/conv_001612.json
deleted file mode 100644
index a2bb82fd6c48e87a320872e4069c0251b50f6e0d..0000000000000000000000000000000000000000
--- a/conversations/conv_001612.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129596.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126600.flac |",
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-      "real_speaker_id": "1648",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126851.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/208/laugh/0034.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001623.json b/conversations/conv_001623.json
deleted file mode 100644
index 775adaffbcddf664b7ae2b9055d9f43aabedbdaa..0000000000000000000000000000000000000000
--- a/conversations/conv_001623.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "9022-282357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 6.616970378732477,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7264-92310.flac |",
-      "real_speaker_id": "7264",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122150.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 99742
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "9022-282383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282383.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 1.5920404347331463,
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-      "utterance_id": "196-122152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122152.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_6.wav",
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-      "speaker_id": "9022"
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\ No newline at end of file
diff --git a/conversations/conv_001624.json b/conversations/conv_001624.json
deleted file mode 100644
index 629981b4f7a02cb5901e58719896b64a53eb589f..0000000000000000000000000000000000000000
--- a/conversations/conv_001624.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
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-      "utterance_id": "8534-216567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216567.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 181024
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 277141
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001628.json b/conversations/conv_001628.json
deleted file mode 100644
index a8ac54ac0b9f62177c26dee365ff6a79a4d4f271..0000000000000000000000000000000000000000
--- a/conversations/conv_001628.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4133-6541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76974.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
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-      "overlap": false,
-      "utterance_id": "8152-258993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-258993.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.672284051189287,
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-      "start_frame": 266756,
-      "duration_frames": 62347,
-      "overlap": false,
-      "utterance_id": "4133-6541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
-      "position_frames": 97288
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.777482980948555,
-      "end_time": 24.639635798097803,
-      "duration": 3.8621528171492487,
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-      "duration_frames": 61794,
-      "overlap": false,
-      "utterance_id": "8152-258993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-258993.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 95812
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.384545118154143,
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-      "duration": 4.752025769433538,
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-      "duration_frames": 76032,
-      "overlap": false,
-      "utterance_id": "64-76973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76973.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.86820063811736,
-      "end_time": 32.0,
-      "duration": 1.1317993618826385,
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-      "utterance_id": "8152-282985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-282985.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_001632.json b/conversations/conv_001632.json
deleted file mode 100644
index 902d8e8d761f8139e680669ef49e3adeeb322a67..0000000000000000000000000000000000000000
--- a/conversations/conv_001632.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.416833391088065,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.948715272240233,
-      "duration": 5.948715272240233,
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-      "utterance_id": "331-135126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-135126.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-33410.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-26564.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-135126.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 95179
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.426476275553583,
-      "end_time": 31.416833391088065,
-      "duration": 2.990357115534483,
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-      "utterance_id": "6567-53342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
-      "position_frames": 57225
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
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-      "start_time": 11.147077304887205
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/331/laugh/0090.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5132/laugh/0069.wav",
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-      "start_time": 5.184681425795435,
-      "speaker_id": "5132"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6567/laugh/0024.wav",
-      "duration": 1.56,
-      "start_time": 15.838531364906679,
-      "speaker_id": "6567"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/331/cough/0131.wav",
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-      "start_time": 22.05302270746717,
-      "speaker_id": "331"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6567/laugh/0057.wav",
-      "duration": 1.56,
-      "start_time": 29.3443961831319,
-      "speaker_id": "6567"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001635.json b/conversations/conv_001635.json
deleted file mode 100644
index 9ad26a07c4b2bfc02a63e3d7b560658fc384dd05..0000000000000000000000000000000000000000
--- a/conversations/conv_001635.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.203907393884083,
-      "duration": 4.203907393884083,
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-      "duration_frames": 67262,
-      "overlap": false,
-      "utterance_id": "7713-106729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106729.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.4099306249364565,
-      "end_time": 8.750005677476704,
-      "duration": 4.340075052540248,
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-      "duration_frames": 69441,
-      "overlap": false,
-      "utterance_id": "1844-144486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.971830468688493,
-      "end_time": 14.059213386519103,
-      "duration": 5.08738291783061,
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-      "duration_frames": 81398,
-      "overlap": false,
-      "utterance_id": "7713-106733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106733.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.621761732943673,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-122804.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.15807050201392,
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-      "utterance_id": "1844-144486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 69441
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-122804.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 82948
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.457119197916178,
-      "end_time": 32.0,
-      "duration": 0.5428808020838218,
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-      "utterance_id": "313-128021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-128021.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 1.7008594639055943,
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "313"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001645.json b/conversations/conv_001645.json
deleted file mode 100644
index 7572aa09c9ea8430a7fb5664b797a0be24ff5551..0000000000000000000000000000000000000000
--- a/conversations/conv_001645.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "4340-15220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.677631440155413,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7480-93348.flac |",
-      "real_speaker_id": "7480",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.364176800371425,
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-      "utterance_id": "3830-12529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12529.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.529703028450903,
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-      "utterance_id": "3830-12535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12535.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.474892907137168,
-      "end_time": 24.07665039375297,
-      "duration": 3.601757486615802,
-      "start_frame": 327598,
-      "duration_frames": 57628,
-      "overlap": false,
-      "utterance_id": "4340-15220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 69619
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.346869686679355,
-      "end_time": 31.20385233663155,
-      "duration": 6.8569826499521955,
-      "start_frame": 389549,
-      "duration_frames": 109711,
-      "overlap": false,
-      "utterance_id": "3830-12531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12531.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.7611436966848495,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7480/laugh/0083.wav",
-      "duration": 1.04,
-      "start_time": 3.4847108364304393,
-      "speaker_id": "7480"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7480/cough/0040.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3830/laugh/0061.wav",
-      "duration": 1.32,
-      "start_time": 22.897672158212824,
-      "speaker_id": "3830"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001648.json b/conversations/conv_001648.json
deleted file mode 100644
index 87cbcbf4db3807ce887a0b9a8e98aed91563d40c..0000000000000000000000000000000000000000
--- a/conversations/conv_001648.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "3394-168627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-168627.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7702",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2967-4902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4902.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4901.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.513444289511675,
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-      "position_frames": 66295
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-      "start_time": 20.934141687633
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-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.3697855319273065,
-      "start_time": 2.751268224264341
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3394/laugh/0008.wav",
-      "duration": 1.24,
-      "start_time": 5.061625528056055,
-      "speaker_id": "3394"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7702/laugh/0066.wav",
-      "duration": 0.8278795849166918,
-      "start_time": 16.607810976875374,
-      "speaker_id": "7702"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7702/laugh/0067.wav",
-      "duration": 0.9352467459213252,
-      "start_time": 28.478790198704832,
-      "speaker_id": "7702"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7702/cough/0009.wav",
-      "duration": 0.40669951104139995,
-      "start_time": 31.5933004889586,
-      "speaker_id": "7702"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001649.json b/conversations/conv_001649.json
deleted file mode 100644
index b967a63aea1a2ff64fc09fb2c557c3fced5015bb..0000000000000000000000000000000000000000
--- a/conversations/conv_001649.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.3804186099549,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.30020222891732,
-      "duration": 6.30020222891732,
-      "start_frame": 0,
-      "duration_frames": 100803,
-      "overlap": false,
-      "utterance_id": "5894-64100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64100.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.036972547498428,
-      "end_time": 12.654971250653023,
-      "duration": 5.617998703154594,
-      "start_frame": 112591,
-      "duration_frames": 89887,
-      "overlap": false,
-      "utterance_id": "2012-139358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139358.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.860000124344246,
-      "end_time": 19.059096882903404,
-      "duration": 6.199096758559156,
-      "start_frame": 205760,
-      "duration_frames": 99185,
-      "overlap": true,
-      "utterance_id": "4423-16011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-16011.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.74376220110287,
-      "end_time": 26.62450102407815,
-      "duration": 6.880738822975278,
-      "start_frame": 315900,
-      "duration_frames": 110091,
-      "overlap": false,
-      "utterance_id": "2012-139355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139355.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.81786817811255,
-      "end_time": 31.3804186099549,
-      "duration": 4.56255043184235,
-      "start_frame": 429085,
-      "duration_frames": 73000,
-      "overlap": true,
-      "utterance_id": "5894-64095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64095.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "start_time": 0.806332386785625
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 1.9049318468733083,
-      "start_time": 5.647212350612226
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5894/cough/0002.wav",
-      "duration": 0.367723722966917,
-      "start_time": 0,
-      "speaker_id": "5894"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5894/cough/0131.wav",
-      "duration": 1.3570027248639585,
-      "start_time": 30.642997275136043,
-      "speaker_id": "5894"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001653.json b/conversations/conv_001653.json
deleted file mode 100644
index 485494d0a8c308cb2983ed5a6dee62756525b473..0000000000000000000000000000000000000000
--- a/conversations/conv_001653.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.530505036407025,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.0371964009303065,
-      "duration": 5.0371964009303065,
-      "start_frame": 0,
-      "duration_frames": 80595,
-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.459919644633827,
-      "end_time": 11.945583602033153,
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-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.193233877801944,
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-      "duration": 5.447506508780201,
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-      "duration_frames": 87160,
-      "overlap": false,
-      "utterance_id": "2498-134786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134786.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.953561496793903,
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-      "duration": 5.484901664461518,
-      "start_frame": 287256,
-      "duration_frames": 87758,
-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 80595
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.103426076966493,
-      "end_time": 30.533264848929484,
-      "duration": 6.4298387719629915,
-      "start_frame": 385654,
-      "duration_frames": 102877,
-      "overlap": false,
-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 103770
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.490319051389836,
-      "end_time": 31.530505036407025,
-      "duration": 1.0401859850171888,
-      "start_frame": 487845,
-      "duration_frames": 16642,
-      "overlap": true,
-      "utterance_id": "2498-134785",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134785.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1695/laugh/0112.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1695/cough/0064.wav",
-      "duration": 1.4,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1695/laugh/0057.wav",
-      "duration": 0.7630288471024641,
-      "start_time": 30.784769966630567,
-      "speaker_id": "1695"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1695/cough/0097.wav",
-      "duration": 1.36,
-      "start_time": 27.633893655650198,
-      "speaker_id": "1695"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001662.json b/conversations/conv_001662.json
deleted file mode 100644
index dc614ef4690e385269254b481280fa19d8226642..0000000000000000000000000000000000000000
--- a/conversations/conv_001662.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.429558750329156,
-      "duration": 5.429558750329156,
-      "start_frame": 0,
-      "duration_frames": 86872,
-      "overlap": false,
-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.099359671361495,
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-      "utterance_id": "4910-14124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-14124.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.582010399174116,
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-      "duration_frames": 61307,
-      "overlap": false,
-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.78511449996517,
-      "end_time": 21.73613549287601,
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-      "start_frame": 252561,
-      "duration_frames": 95216,
-      "overlap": false,
-      "utterance_id": "4910-27683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-27683.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.055228696679382,
-      "end_time": 27.926047083241293,
-      "duration": 5.8708183865619095,
-      "start_frame": 352883,
-      "duration_frames": 93933,
-      "overlap": false,
-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 61307
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.21926227959136,
-      "end_time": 32.0,
-      "duration": 3.7807377204086414,
-      "start_frame": 451508,
-      "duration_frames": 60491,
-      "overlap": false,
-      "utterance_id": "4910-27683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-27683.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 95216
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.7599429705040386,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4910/laugh/0113.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4910/laugh/0015.wav",
-      "duration": 1.1967661624874522,
-      "start_time": 29.90218145923175,
-      "speaker_id": "4910"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001665.json b/conversations/conv_001665.json
deleted file mode 100644
index 9bdf0364386e9d8a09dd1175ea346182d47fb78e..0000000000000000000000000000000000000000
--- a/conversations/conv_001665.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.331679714213245,
-      "duration": 5.331679714213245,
-      "start_frame": 0,
-      "duration_frames": 85306,
-      "overlap": false,
-      "utterance_id": "1772-135621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.697402985655195,
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-      "duration": 5.718293126720791,
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-      "duration_frames": 91492,
-      "overlap": true,
-      "utterance_id": "1246-124548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-124548.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.098312365524372,
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-      "duration_frames": 59082,
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-      "utterance_id": "7826-107634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-107634.flac |",
-      "real_speaker_id": "7826",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1772-135621",
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-    {
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-      "utterance_id": "7826-271808",
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-      "real_speaker_id": "7826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-  ],
-  "background_events": [
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-      "event_class": "Dishes",
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-      "event_class": "Dog",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1246/laugh/0004.wav",
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-      "start_time": 31.00538832329044,
-      "speaker_id": "1246"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001669.json b/conversations/conv_001669.json
deleted file mode 100644
index a6ec7a5b5cc1b4ae6480953db5d56da6525ffaa1..0000000000000000000000000000000000000000
--- a/conversations/conv_001669.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.584108777403884,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.1843950954064635,
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-      "overlap": false,
-      "utterance_id": "3906-191426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-191426.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.348445954031151,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.556109781959098,
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-      "overlap": false,
-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.507014510357234,
-      "end_time": 22.49412895032023,
-      "duration": 4.987114439962999,
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-      "duration_frames": 79793,
-      "overlap": false,
-      "utterance_id": "7956-245687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 103515
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.085243699253777,
-      "end_time": 28.210099412312104,
-      "duration": 6.124855713058327,
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-      "duration_frames": 97997,
-      "overlap": true,
-      "utterance_id": "816-2301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.107729790578585,
-      "end_time": 31.584108777403884,
-      "duration": 2.4763789868252992,
-      "start_frame": 465723,
-      "duration_frames": 39622,
-      "overlap": true,
-      "utterance_id": "3906-23193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-23193.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3906/laugh/0035.wav",
-      "duration": 1.16,
-      "start_time": 6.247185196764624,
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-    {
-      "event_class": "cough",
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-      "duration": 1.4590030687781743,
-      "start_time": 29.29648009887713,
-      "speaker_id": "3906"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001673.json b/conversations/conv_001673.json
deleted file mode 100644
index f641b795a8b360a92f778025dfd42b1fb18caba9..0000000000000000000000000000000000000000
--- a/conversations/conv_001673.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2182-181183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.287305165832801,
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-      "utterance_id": "26-495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2182-181183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 91516
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.28817401944286,
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-      "duration_frames": 91682,
-      "overlap": false,
-      "utterance_id": "26-495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 59444
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.624322649172946,
-      "end_time": 32.0,
-      "duration": 3.375677350827054,
-      "start_frame": 457989,
-      "duration_frames": 54010,
-      "overlap": false,
-      "utterance_id": "2182-181173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181173.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/laugh/0063.wav",
-      "duration": 1.76,
-      "start_time": 1.1295961671970507,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/laugh/0085.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/26/laugh/0109.wav",
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-      "start_time": 16.469044328869575,
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/cough/0031.wav",
-      "duration": 1.185748046556601,
-      "start_time": 30.22941394537823,
-      "speaker_id": "2182"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001674.json b/conversations/conv_001674.json
deleted file mode 100644
index 32bf6ebca3399961fb1231867026056ab385f4d1..0000000000000000000000000000000000000000
--- a/conversations/conv_001674.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.25157770445204,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration_frames": 57156,
-      "overlap": false,
-      "utterance_id": "4381-14904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14904.flac |",
-      "real_speaker_id": "4381",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.971205720589126,
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-      "utterance_id": "7246-110053",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-110053.flac |",
-      "real_speaker_id": "7246",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3242-67153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3242-67153.flac |",
-      "real_speaker_id": "3242",
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-    {
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-      "start_time": 17.06580931947294,
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-      "utterance_id": "7246-86779",
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-      "real_speaker_id": "7246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.397417744820228,
-      "end_time": 27.29840180062434,
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-      "utterance_id": "4381-14897",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7246-63505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-63505.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4381/cough/0021.wav",
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-      "speaker_id": "4381"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001686.json b/conversations/conv_001686.json
deleted file mode 100644
index 076c4b64da934e87a5ccc0a74edc52314f4785f6..0000000000000000000000000000000000000000
--- a/conversations/conv_001686.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.10675947109006,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3178695399340596,
-      "duration": 3.3178695399340596,
-      "start_frame": 0,
-      "duration_frames": 53085,
-      "overlap": false,
-      "utterance_id": "5909-107621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-107621.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.458341835320795,
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-      "utterance_id": "7995-280250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-280250.flac |",
-      "real_speaker_id": "7995",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "17-363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7995-276907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-276907.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.207114202994692,
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-      "duration": 5.4070406251071095,
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-      "overlap": false,
-      "utterance_id": "5909-111961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-111961.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.77560467765751,
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-      "overlap": true,
-      "utterance_id": "7995-276908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-276908.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7995/laugh/0092.wav",
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-      "speaker_id": "7995"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/17/cough/0049.wav",
-      "duration": 0.9430842324343329,
-      "start_time": 7.719839692694656,
-      "speaker_id": "17"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5909/laugh/0106.wav",
-      "duration": 0.737258930724604,
-      "start_time": 20.310712813480034,
-      "speaker_id": "5909"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5909/cough/0095.wav",
-      "duration": 1.16,
-      "start_time": 22.165244499917993,
-      "speaker_id": "5909"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001690.json b/conversations/conv_001690.json
deleted file mode 100644
index 28670e8031decd22b0ff327d75815b4e9a8fb5b0..0000000000000000000000000000000000000000
--- a/conversations/conv_001690.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.829905448268751,
-      "duration": 5.829905448268751,
-      "start_frame": 0,
-      "duration_frames": 93278,
-      "overlap": false,
-      "utterance_id": "639-124526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-124526.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.475521707503893,
-      "end_time": 9.52306990539083,
-      "duration": 3.047548197886937,
-      "start_frame": 103608,
-      "duration_frames": 48760,
-      "overlap": false,
-      "utterance_id": "622-128666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128666.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.925493887417293,
-      "end_time": 14.564326238757111,
-      "duration": 4.638832351339818,
-      "start_frame": 158807,
-      "duration_frames": 74221,
-      "overlap": false,
-      "utterance_id": "5379-15784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-15784.flac |",
-      "real_speaker_id": "5379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.062784336516614,
-      "end_time": 21.323094940715478,
-      "duration": 6.260310604198866,
-      "start_frame": 241004,
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-      "overlap": false,
-      "utterance_id": "639-143022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.579484509062596,
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-      "duration": 4.422210410137508,
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-      "overlap": false,
-      "utterance_id": "622-121659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-121659.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.292169354196393,
-      "end_time": 32.0,
-      "duration": 5.707830645803607,
-      "start_frame": 420674,
-      "duration_frames": 91325,
-      "overlap": false,
-      "utterance_id": "639-124526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-124526.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 93278
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
-      "duration": 0.31396825396825395,
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-      "start_time": 5.965783602002494,
-      "speaker_id": "639"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/622/laugh/0027.wav",
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-      "speaker_id": "622"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5379/laugh/0111.wav",
-      "duration": 1.0187625272304817,
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-    {
-      "event_class": "cough",
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-      "duration": 0.6802217581201777,
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-      "speaker_id": "5379"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001700.json b/conversations/conv_001700.json
deleted file mode 100644
index 4610d652e32b54ac78ab8faa2987888f9d7d9ad0..0000000000000000000000000000000000000000
--- a/conversations/conv_001700.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.486320984828893,
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-      "utterance_id": "1337-156963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-156963.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.082623211831436,
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-      "duration": 5.626799899199641,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.64594578037568,
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-      "utterance_id": "1337-156963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-156963.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 87781
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.591956517339007,
-      "end_time": 26.485369259062402,
-      "duration": 6.893412741723397,
-      "start_frame": 313471,
-      "duration_frames": 110294,
-      "overlap": false,
-      "utterance_id": "339-132718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132718.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.06529358502159,
-      "end_time": 32.0,
-      "duration": 4.934706414978411,
-      "start_frame": 433044,
-      "duration_frames": 78955,
-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 90028
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5459/laugh/0047.wav",
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-      "start_time": 11.724159731501615,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5459/cough/0032.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5459/laugh/0051.wav",
-      "duration": 0.6507190145661783,
-      "start_time": 30.865408491725255,
-      "speaker_id": "5459"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001716.json b/conversations/conv_001716.json
deleted file mode 100644
index 1b339d332ebc4935998449aec97d47607f660e15..0000000000000000000000000000000000000000
--- a/conversations/conv_001716.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.113311453809395,
-      "duration": 4.113311453809395,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2998-160954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2998-160954.flac |",
-      "real_speaker_id": "2998",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.384198608411401,
-      "end_time": 10.80791381854121,
-      "duration": 6.423715210129808,
-      "start_frame": 70147,
-      "duration_frames": 102779,
-      "overlap": false,
-      "utterance_id": "7553-101278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.509858160510076,
-      "end_time": 17.624708442182964,
-      "duration": 6.1148502816728865,
-      "start_frame": 184157,
-      "duration_frames": 97837,
-      "overlap": false,
-      "utterance_id": "7786-118675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-118675.flac |",
-      "real_speaker_id": "7786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.718936913206715,
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-      "start_frame": 283502,
-      "duration_frames": 76595,
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-      "utterance_id": "7786-118675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-118675.flac |",
-      "real_speaker_id": "7786",
-      "position_frames": 97837
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.691356555697162,
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-      "duration_frames": 66879,
-      "overlap": true,
-      "utterance_id": "2998-160954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2998-160954.flac |",
-      "real_speaker_id": "2998",
-      "position_frames": 65812
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.660141507808504,
-      "end_time": 32.0,
-      "duration": 3.339858492191496,
-      "start_frame": 458562,
-      "duration_frames": 53437,
-      "overlap": false,
-      "utterance_id": "2998-160955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2998-160955.flac |",
-      "real_speaker_id": "2998",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2998/laugh/0048.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "2998"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2998/cough/0050.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7553/cough/0063.wav",
-      "duration": 1.32,
-      "start_time": 2.9068452416813915,
-      "speaker_id": "7553"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001720.json b/conversations/conv_001720.json
deleted file mode 100644
index 1ef2ae25ae2f6a21103b1af313ae7998c6e95b59..0000000000000000000000000000000000000000
--- a/conversations/conv_001720.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.24861846032802,
-      "duration": 4.24861846032802,
-      "start_frame": 0,
-      "duration_frames": 67977,
-      "overlap": false,
-      "utterance_id": "47-122796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.47861004718726,
-      "end_time": 9.425356644625673,
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-      "duration_frames": 79147,
-      "overlap": false,
-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 79147
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
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-      "segment_id": "seg0004",
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-      "start_time": 21.208226549525353,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
-      "position_frames": 131888
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 177371
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 14.91100643704338,
-      "speaker_id": "47"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001727.json b/conversations/conv_001727.json
deleted file mode 100644
index 1bd4ae2c18efb04beaa4fc45a0236ab2be49aab1..0000000000000000000000000000000000000000
--- a/conversations/conv_001727.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8422-283572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-283572.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.063122538813011,
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-      "utterance_id": "492-131887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/492-131887.flac |",
-      "real_speaker_id": "492",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1258-135062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135062.flac |",
-      "real_speaker_id": "1258",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.914361531374425,
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-      "utterance_id": "492-131899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/492-131899.flac |",
-      "real_speaker_id": "492",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.51551744886019,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/492-131890.flac |",
-      "real_speaker_id": "492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8422-283572",
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-      "real_speaker_id": "8422",
-      "position_frames": 82336
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.43319532108602,
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-      "utterance_id": "492-131890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/492-131890.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_001731.json b/conversations/conv_001731.json
deleted file mode 100644
index 75f28b2b690bc6d88b71d095b76a9f008fc716d0..0000000000000000000000000000000000000000
--- a/conversations/conv_001731.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.37335307600061,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3835-178029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178029.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156098.flac |",
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-      "segment_id": "seg0002",
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-      "start_time": 13.085940098316104,
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-      "utterance_id": "2526-156098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156098.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 102065
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3835-178030",
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-      "real_speaker_id": "3835",
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_001736.json b/conversations/conv_001736.json
deleted file mode 100644
index 2b1e06ec4fda09fad4619b92ea54c7652a81a249..0000000000000000000000000000000000000000
--- a/conversations/conv_001736.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8722-296473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8722-296473.flac |",
-      "real_speaker_id": "8722",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135540.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "8722-296473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8722-296473.flac |",
-      "real_speaker_id": "8722",
-      "position_frames": 108373
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-    {
-      "segment_id": "seg0003",
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-      "duration_frames": 80560,
-      "overlap": false,
-      "utterance_id": "1184-135532",
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-      "real_speaker_id": "1184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.99837054446103,
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-      "overlap": false,
-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.97858425469046,
-      "end_time": 32.0,
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-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 90342
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001741.json b/conversations/conv_001741.json
deleted file mode 100644
index 0ed1d52e8b18f58aa0c764be1b2499f86603fec8..0000000000000000000000000000000000000000
--- a/conversations/conv_001741.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "79-121541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.930997355490443,
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-      "utterance_id": "1182-134316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134316.flac |",
-      "real_speaker_id": "1182",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.573542138506323,
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-      "utterance_id": "3656-168648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168648.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "79-121541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
-      "position_frames": 87135
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168609.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "event_class": "Cat",
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-      "speaker_id": "1182"
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\ No newline at end of file
diff --git a/conversations/conv_001757.json b/conversations/conv_001757.json
deleted file mode 100644
index 2f72dbc78fb78a865b8e45425b2e60cdbc2ba7a1..0000000000000000000000000000000000000000
--- a/conversations/conv_001757.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1621-141593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141593.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 5.364181746131418,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-123602.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-159359.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1621-141593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141593.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 64429
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-      "utterance_id": "3557-8342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8342.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.68215646819779,
-      "end_time": 32.0,
-      "duration": 0.31784353180221103,
-      "start_frame": 506914,
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-      "utterance_id": "398-130093",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-130093.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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\ No newline at end of file
diff --git a/conversations/conv_001761.json b/conversations/conv_001761.json
deleted file mode 100644
index c4a0976b0f7d860dc9812f5cabfdf6bde86fbd3a..0000000000000000000000000000000000000000
--- a/conversations/conv_001761.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1050-134120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1050-134120.flac |",
-      "real_speaker_id": "1050",
-      "position_frames": 0
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-      "real_speaker_id": "2988",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1050-134119.flac |",
-      "real_speaker_id": "1050",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-7587.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 80022
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.680141483633992,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "5641-39772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-39772.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5641/laugh/0043.wav",
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-      "speaker_id": "5641"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001766.json b/conversations/conv_001766.json
deleted file mode 100644
index 0f01910b69ca4a89155a806dd4b852ed0fe1f863..0000000000000000000000000000000000000000
--- a/conversations/conv_001766.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "836-130900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-130900.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-130900.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 107393
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "836",
-      "position_frames": 199256
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 85654
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.820784821031253,
-      "end_time": 32.0,
-      "duration": 1.1792151789687466,
-      "start_frame": 493132,
-      "duration_frames": 18867,
-      "overlap": false,
-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/836/laugh/0013.wav",
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-      "start_time": 6.758635449712774,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1311/cough/0059.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1311/laugh/0087.wav",
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-      "speaker_id": "1311"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001770.json b/conversations/conv_001770.json
deleted file mode 100644
index 0edb87c97222d1c5ac9e274e19e493f465067661..0000000000000000000000000000000000000000
--- a/conversations/conv_001770.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.281205233832334,
-      "duration": 6.281205233832334,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_001777.json b/conversations/conv_001777.json
deleted file mode 100644
index b244d2c16702c4f9a66488cfec6e257ef9006c8a..0000000000000000000000000000000000000000
--- a/conversations/conv_001777.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 0
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-      "real_speaker_id": "1374",
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\ No newline at end of file
diff --git a/conversations/conv_001782.json b/conversations/conv_001782.json
deleted file mode 100644
index 91a977ddc0c35297e14cb89bdc9924b741779806..0000000000000000000000000000000000000000
--- a/conversations/conv_001782.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "4959",
-      "position_frames": 173079
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_001789.json b/conversations/conv_001789.json
deleted file mode 100644
index bda25a608441f8b8199aba528eeff765c42678fb..0000000000000000000000000000000000000000
--- a/conversations/conv_001789.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.220807640681183,
-  "num_speakers": 3,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4576/cough/0098.wav",
-      "duration": 0.38579935345144195,
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-      "speaker_id": "4576"
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-      "event_class": "cough",
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-      "speaker_id": "2882"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001794.json b/conversations/conv_001794.json
deleted file mode 100644
index 098fc9c3f9f20b1ceebc539c5a2ab73a2257e12e..0000000000000000000000000000000000000000
--- a/conversations/conv_001794.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-144137.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 17.645611796044747,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 156667
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.60649725379658,
-      "end_time": 26.234082831284674,
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-      "duration_frames": 74041,
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-      "utterance_id": "3109-165420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.137112254422195,
-      "end_time": 32.0,
-      "duration": 3.8628877455778046,
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-      "overlap": false,
-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 226779
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001798.json b/conversations/conv_001798.json
deleted file mode 100644
index edfe658e9e43f8002afc49e16845c61f4d7d9403..0000000000000000000000000000000000000000
--- a/conversations/conv_001798.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4693-28003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4693-28003.flac |",
-      "real_speaker_id": "4693",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-163609.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-165435.flac |",
-      "real_speaker_id": "3554",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 18.476819378448937,
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-      "utterance_id": "4693-17503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4693-17503.flac |",
-      "real_speaker_id": "4693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.518037049269687,
-      "end_time": 28.996868090617564,
-      "duration": 4.478831041347878,
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-      "overlap": false,
-      "utterance_id": "3554-163609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-163609.flac |",
-      "real_speaker_id": "3554",
-      "position_frames": 70665
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.191984857343982,
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-      "duration": 2.808015142656018,
-      "start_frame": 467071,
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-      "overlap": false,
-      "utterance_id": "6696-73295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73295.flac |",
-      "real_speaker_id": "6696",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001805.json b/conversations/conv_001805.json
deleted file mode 100644
index bfabd6de4a95ffc63cc41159273a81f65b7b4197..0000000000000000000000000000000000000000
--- a/conversations/conv_001805.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.408443812982846,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.597725236114936,
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-      "utterance_id": "6937-112761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-112761.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 13.953902441974474,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 110792
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
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-      "position_frames": 177856
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "speaker_id": "3180"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001809.json b/conversations/conv_001809.json
deleted file mode 100644
index c9e22054003cca7149183c3b54492686a0b90ec7..0000000000000000000000000000000000000000
--- a/conversations/conv_001809.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7717-104491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7717-104491.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5023",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143946.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.898407781051787,
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-      "utterance_id": "5023-33399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-33399.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7717-104491.flac |",
-      "real_speaker_id": "7717",
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 10.883357547993937,
-      "speaker_id": "5023"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7717/laugh/0017.wav",
-      "duration": 1.38,
-      "start_time": 17.03201651434564,
-      "speaker_id": "7717"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5023/laugh/0005.wav",
-      "duration": 1.24,
-      "start_time": 22.65620239550964,
-      "speaker_id": "5023"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001813.json b/conversations/conv_001813.json
deleted file mode 100644
index 66afcebaf8ad1ea6f44d8d83f3e765074079c7b6..0000000000000000000000000000000000000000
--- a/conversations/conv_001813.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.897052235088754,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.730715628652017,
-      "duration": 5.730715628652017,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6120-14976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6120-14976.flac |",
-      "real_speaker_id": "6120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.412057946841264,
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-      "overlap": false,
-      "utterance_id": "6120-56179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6120-56179.flac |",
-      "real_speaker_id": "6120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.36409702722393,
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-      "duration": 5.675057637057387,
-      "start_frame": 181825,
-      "duration_frames": 90800,
-      "overlap": true,
-      "utterance_id": "4116-3582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-3582.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.9335678377466,
-      "end_time": 24.13188063771263,
-      "duration": 6.19831279996603,
-      "start_frame": 286937,
-      "duration_frames": 99173,
-      "overlap": false,
-      "utterance_id": "4071-39913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39913.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.074540855074694,
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-      "duration": 6.822511380014061,
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-      "duration_frames": 109160,
-      "overlap": true,
-      "utterance_id": "4116-3582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-3582.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 90800
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-      "start_time": 0.02872122903696501
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-      "start_time": 26.365153887521437
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6120/laugh/0013.wav",
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-      "speaker_id": "4071"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001818.json b/conversations/conv_001818.json
deleted file mode 100644
index 6084045f113972f136b40c8b306913459473435f..0000000000000000000000000000000000000000
--- a/conversations/conv_001818.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.60357010147479,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.402885126316689,
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-      "overlap": false,
-      "utterance_id": "6749-76160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-76160.flac |",
-      "real_speaker_id": "6749",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.225808933760214,
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-      "overlap": true,
-      "utterance_id": "6418-39655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39655.flac |",
-      "real_speaker_id": "6418",
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-      "overlap": false,
-      "utterance_id": "4425-14497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.679105183526023,
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-      "utterance_id": "6418-39656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39656.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.21882067807066,
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-      "utterance_id": "6749-53256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-53256.flac |",
-      "real_speaker_id": "6749",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6418-39654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39654.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "cough",
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-      "speaker_id": "6418"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001825.json b/conversations/conv_001825.json
deleted file mode 100644
index be45a1eb3ba5790bc896356b439e09a421eb73a0..0000000000000000000000000000000000000000
--- a/conversations/conv_001825.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132710.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "8710-286293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8710-286293.flac |",
-      "real_speaker_id": "8710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.232070808048995,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 107593
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.509511089606175,
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-      "duration_frames": 88255,
-      "overlap": false,
-      "utterance_id": "948-132705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132705.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.34699053511857,
-      "end_time": 32.0,
-      "duration": 3.6530094648814284,
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-      "duration_frames": 58448,
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-      "utterance_id": "8710-286293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8710-286293.flac |",
-      "real_speaker_id": "8710",
-      "position_frames": 90870
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1495/laugh/0002.wav",
-      "duration": 0.96,
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001829.json b/conversations/conv_001829.json
deleted file mode 100644
index 58e033870ab108c4c4a5d8e9a6b262976a9bdba2..0000000000000000000000000000000000000000
--- a/conversations/conv_001829.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.0765363631520763,
-      "duration": 3.0765363631520763,
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-      "utterance_id": "3221-9174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.569249935237398,
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-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8316-279798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 61590
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "8316-279798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001832.json b/conversations/conv_001832.json
deleted file mode 100644
index 8b49191d7a5b75ca9db716ffcbe68f0b861c1407..0000000000000000000000000000000000000000
--- a/conversations/conv_001832.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6954-76168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76168.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8596531127674627,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 11.0742005587013,
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-      "overlap": false,
-      "utterance_id": "727-124443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
-      "position_frames": 99853
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.211861289141993,
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-      "overlap": false,
-      "utterance_id": "727-124443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
-      "position_frames": 200648
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.070777319523998,
-      "end_time": 29.81598399308156,
-      "duration": 5.7452066735575595,
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-      "overlap": false,
-      "utterance_id": "6954-76579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76579.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.421529621792597,
-      "end_time": 32.0,
-      "duration": 1.5784703782074025,
-      "start_frame": 486744,
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-      "overlap": false,
-      "utterance_id": "2299-6525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001833.json b/conversations/conv_001833.json
deleted file mode 100644
index 9e1a56eba9d02040f563266e58ca8baaa3c7baa7..0000000000000000000000000000000000000000
--- a/conversations/conv_001833.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7348-86748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-86748.flac |",
-      "real_speaker_id": "7348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86822.flac |",
-      "real_speaker_id": "6950",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-294687.flac |",
-      "real_speaker_id": "7348",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86822.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 62891
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "4710-24607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-24607.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.95383073333079,
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-      "duration": 2.04616926666921,
-      "start_frame": 479261,
-      "duration_frames": 32738,
-      "overlap": false,
-      "utterance_id": "6950-86822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86822.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 172376
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 25.600045925380336,
-      "speaker_id": "4710"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001844.json b/conversations/conv_001844.json
deleted file mode 100644
index b8aca599b8e7bc3d0b06a33f6c04206b6d2c9c7f..0000000000000000000000000000000000000000
--- a/conversations/conv_001844.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7178-34644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34644.flac |",
-      "real_speaker_id": "7178",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "6965",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34644.flac |",
-      "real_speaker_id": "7178",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6965-277898",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.267405968614014,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34644.flac |",
-      "real_speaker_id": "7178",
-      "position_frames": 134855
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6965-291718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-291718.flac |",
-      "real_speaker_id": "6965",
-      "position_frames": 104373
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6965/laugh/0028.wav",
-      "duration": 1.32,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6965/laugh/0007.wav",
-      "duration": 1.32,
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-      "speaker_id": "6965"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001848.json b/conversations/conv_001848.json
deleted file mode 100644
index f7b185352cccfc7d5dea8387d65e861dde951c00..0000000000000000000000000000000000000000
--- a/conversations/conv_001848.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "3228-4691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4691.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "2284",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-42010.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4687.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 79259
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 76656
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_15.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001852.json b/conversations/conv_001852.json
deleted file mode 100644
index ecd2e3e4a8c072ef1f5d1375bc7deed2e2f6d019..0000000000000000000000000000000000000000
--- a/conversations/conv_001852.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "806-124221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-124221.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.6312617935483935,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3097-165354.flac |",
-      "real_speaker_id": "3097",
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-      "overlap": false,
-      "utterance_id": "5840-54193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54193.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-124221.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 75647
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.283446660639814,
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-      "utterance_id": "5840-54188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54188.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.007439020734637,
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-      "utterance_id": "806-123715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "laugh",
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-      "start_time": 29.094341978144307,
-      "speaker_id": "806"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001859.json b/conversations/conv_001859.json
deleted file mode 100644
index a91be3f363e6086e7635b0ec34b5280237c7c5b7..0000000000000000000000000000000000000000
--- a/conversations/conv_001859.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132307.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6120-14976.flac |",
-      "real_speaker_id": "6120",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132307.flac |",
-      "real_speaker_id": "923",
-      "position_frames": 110757
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-24734.flac |",
-      "real_speaker_id": "4863",
-      "position_frames": 49946
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "position_frames": 170316
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "Vacuum_cleaner",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/923/laugh/0024.wav",
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-      "start_time": 7.18835969189769,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4863/laugh/0000.wav",
-      "duration": 1.2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_001864.json b/conversations/conv_001864.json
deleted file mode 100644
index ceb5eb5655082e4da2888da0fa24b1ba2b591bd4..0000000000000000000000000000000000000000
--- a/conversations/conv_001864.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7553-101289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101289.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "613-121900",
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-      "real_speaker_id": "613",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.362314233626392,
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-      "utterance_id": "3717-21493",
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-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-121900.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 86412
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_001865.json b/conversations/conv_001865.json
deleted file mode 100644
index b429d9110d04197a6e8e4345bc764f1569d5b962..0000000000000000000000000000000000000000
--- a/conversations/conv_001865.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.2947450107866008,
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-      "utterance_id": "4915-113765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-113765.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "7480",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "4915",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7480-93348.flac |",
-      "real_speaker_id": "7480",
-      "position_frames": 59766
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_001868.json b/conversations/conv_001868.json
deleted file mode 100644
index 7dd4c08160563aa55cecf21428aae3dd9ab6e4fb..0000000000000000000000000000000000000000
--- a/conversations/conv_001868.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.97806418713603,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1603-140931",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-140931.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "start_time": 3.8613589900423437,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
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-      "position_frames": 69871
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-      "speaker_id": 2,
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-      "utterance_id": "1603-139324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139324.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.496810804384292,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 87144
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-  "background_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_001872.json b/conversations/conv_001872.json
deleted file mode 100644
index ad8caffa2c212986da38eaaf3048766d1f66ff6d..0000000000000000000000000000000000000000
--- a/conversations/conv_001872.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4757-1811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
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-      "real_speaker_id": "2999",
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-      "real_speaker_id": "5242",
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-      "utterance_id": "4757-1811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 128646
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.16668927323238,
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-      "position_frames": 70806
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "start_time": 7.933078632203117,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4757/laugh/0070.wav",
-      "duration": 1.16,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001886.json b/conversations/conv_001886.json
deleted file mode 100644
index 82e36943f3ff3b6c25f4b3161e254a6c226beff5..0000000000000000000000000000000000000000
--- a/conversations/conv_001886.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.668391432463067,
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-      "position_frames": 0
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-      "utterance_id": "6906-65918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6906",
-      "position_frames": 70955
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1641-130505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130505.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 80258
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1641/cough/0008.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001887.json b/conversations/conv_001887.json
deleted file mode 100644
index 3702b64edfe274a7531bc4b629eb224091205d84..0000000000000000000000000000000000000000
--- a/conversations/conv_001887.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "2229-152864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152864.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 5.127504866160967,
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-      "utterance_id": "1505-1303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1303.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "real_speaker_id": "2229",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1303.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 63113
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172388.flac |",
-      "real_speaker_id": "8430",
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-      "utterance_id": "2229-152864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152864.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 75969
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8430/laugh/0123.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001891.json b/conversations/conv_001891.json
deleted file mode 100644
index 42dbca1a581001dd8de50b2f12cc8711eab21143..0000000000000000000000000000000000000000
--- a/conversations/conv_001891.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.833742449072417,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-408.flac |",
-      "real_speaker_id": "2952",
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-      "real_speaker_id": "1572",
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-      "utterance_id": "5164-19198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-19198.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1572-141718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 57081
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_001901.json b/conversations/conv_001901.json
deleted file mode 100644
index 80f626eee4ed495a4eaa0b8c6c5dc019ce86ac23..0000000000000000000000000000000000000000
--- a/conversations/conv_001901.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138548.flac |",
-      "real_speaker_id": "1323",
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-      "position_frames": 100740
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "1323",
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-    {
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_001917.json b/conversations/conv_001917.json
deleted file mode 100644
index 9795d3194b4cf2928d6bb2984f304f7f8c9bf3b9..0000000000000000000000000000000000000000
--- a/conversations/conv_001917.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7946-111913",
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-      "position_frames": 0
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-    {
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3294/laugh/0008.wav",
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-      "speaker_id": "3294"
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-      "speaker_id": "3294"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5152/laugh/0025.wav",
-      "duration": 1.4727273302323092,
-      "start_time": 27.670889608806,
-      "speaker_id": "5152"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5152/laugh/0102.wav",
-      "duration": 0.7321435301299319,
-      "start_time": 28.620225274157203,
-      "speaker_id": "5152"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001920.json b/conversations/conv_001920.json
deleted file mode 100644
index 3274831b8c440e2da58667422e10e4518862837f..0000000000000000000000000000000000000000
--- a/conversations/conv_001920.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.650791092658782,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3839139102301248,
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-      "duration_frames": 54142,
-      "overlap": false,
-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.388978956091394,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.100687611402801,
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-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 71741
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 54142
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.053021131425865,
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-      "duration_frames": 95604,
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-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 136164
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.602196572255785,
-      "end_time": 30.68065220097682,
-      "duration": 3.0784556287210347,
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-      "duration_frames": 49255,
-      "overlap": false,
-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 162283
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.2106025903289,
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-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "start_time": 15.047600460271532,
-      "speaker_id": "1813"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "845"
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-}
\ No newline at end of file
diff --git a/conversations/conv_001921.json b/conversations/conv_001921.json
deleted file mode 100644
index a2986a81708c271af379444021d4a869a6953313..0000000000000000000000000000000000000000
--- a/conversations/conv_001921.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6418-39655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39655.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.905364318323092,
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-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3606-6850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3606-6850.flac |",
-      "real_speaker_id": "3606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.434218364418228,
-      "end_time": 19.505431729770002,
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-      "overlap": false,
-      "utterance_id": "3606-6850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3606-6850.flac |",
-      "real_speaker_id": "3606",
-      "position_frames": 69777
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.293420644113283,
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-      "overlap": false,
-      "utterance_id": "6418-39654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39654.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.844513741166875,
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-      "duration": 5.155486258833125,
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-      "utterance_id": "3606-6850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3606-6850.flac |",
-      "real_speaker_id": "3606",
-      "position_frames": 150916
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3606/laugh/0005.wav",
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-      "start_time": 12.53927641681352,
-      "speaker_id": "3606"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001937.json b/conversations/conv_001937.json
deleted file mode 100644
index b69a50557d99d042b2f43146db870734735fd092..0000000000000000000000000000000000000000
--- a/conversations/conv_001937.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.224984661058322,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 4.703301369793651,
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-      "overlap": false,
-      "utterance_id": "4599-21274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.217863951052698,
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-      "overlap": false,
-      "utterance_id": "927-132466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132466.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.432014256280326,
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-      "start_frame": 166912,
-      "duration_frames": 103153,
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-      "utterance_id": "4599-21274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
-      "position_frames": 75252
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.379835874139193,
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-      "utterance_id": "927-132462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132462.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.406166118810148,
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-      "overlap": false,
-      "utterance_id": "3691-178109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178109.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.253622690274664,
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-      "duration_frames": 47541,
-      "overlap": true,
-      "utterance_id": "3691-178109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178109.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 86212
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_5.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.3,
-      "start_time": 0,
-      "speaker_id": "4599"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4599/cough/0073.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4599/cough/0004.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3691/laugh/0101.wav",
-      "duration": 1.52,
-      "start_time": 29.092741103203416,
-      "speaker_id": "3691"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001940.json b/conversations/conv_001940.json
deleted file mode 100644
index 3888918727276ddd27e3eae1bf2390c72d9cf49b..0000000000000000000000000000000000000000
--- a/conversations/conv_001940.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.49030108847804,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.03154264885706,
-      "start_frame": 0,
-      "duration_frames": 48504,
-      "overlap": false,
-      "utterance_id": "5002-70998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-70998.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.3757423793977623,
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-      "duration": 4.829596596619295,
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-      "utterance_id": "5002-72876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-72876.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.583341583420683,
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-      "utterance_id": "8545-273050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-72876.flac |",
-      "real_speaker_id": "5002",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 48280
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4137-11701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4137-11701.flac |",
-      "real_speaker_id": "4137",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-      "start_time": 29.205477903673607,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-72876.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5002/cough/0034.wav",
-      "duration": 0.8608675516354984,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4137/laugh/0031.wav",
-      "duration": 1.04,
-      "start_time": 21.33416504180696,
-      "speaker_id": "4137"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_001956.json b/conversations/conv_001956.json
deleted file mode 100644
index 0af9384f306a3aad06387b3db0940569b88f9988..0000000000000000000000000000000000000000
--- a/conversations/conv_001956.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.2379313450898,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2053-138888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.613741054819285,
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-      "utterance_id": "8225-274376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274376.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.53162334688631,
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-      "overlap": false,
-      "utterance_id": "2053-138888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 81181
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.319697846654112,
-      "end_time": 23.242722389028902,
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-      "duration_frames": 62768,
-      "overlap": false,
-      "utterance_id": "8222-274379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274379.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.882921085690896,
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-      "utterance_id": "2053-138888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 182783
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.698576232259118,
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-      "utterance_id": "8225-274375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274375.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_001960.json b/conversations/conv_001960.json
deleted file mode 100644
index c6b6ace10c2de82e0efe89b0e1747013c27e7427..0000000000000000000000000000000000000000
--- a/conversations/conv_001960.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6882-79969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-79969.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123154.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.159387554881718,
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-      "overlap": false,
-      "utterance_id": "6882-79975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-79975.flac |",
-      "real_speaker_id": "6882",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.148804505132986,
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-      "utterance_id": "608-123155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123155.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.623099326956492,
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-      "duration": 3.376900673043508,
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-      "utterance_id": "6882-86794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-86794.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.14,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6882/laugh/0123.wav",
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-      "event_class": "cough",
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-      "speaker_id": "6882"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001976.json b/conversations/conv_001976.json
deleted file mode 100644
index 32e5ef38b0759e052f5965740fe18c3198814252..0000000000000000000000000000000000000000
--- a/conversations/conv_001976.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 93994,
-      "overlap": false,
-      "utterance_id": "2185-150124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150124.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "8066-114256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-114256.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2185-150123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-290901.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.38496622484287,
-      "end_time": 30.509849708339274,
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-      "overlap": false,
-      "utterance_id": "2185-150124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150124.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 93994
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 0.9047804508898061,
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-      "utterance_id": "8066-290901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-290901.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 104906
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2185/laugh/0012.wav",
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-      "start_time": 10.748772774501429,
-      "speaker_id": "2185"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001977.json b/conversations/conv_001977.json
deleted file mode 100644
index 4a841ab84d698270430912f0be62d8751621bc38..0000000000000000000000000000000000000000
--- a/conversations/conv_001977.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.2249100173452145,
-      "duration": 5.2249100173452145,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3021-121438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.381015095511364,
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-      "utterance_id": "3021-121438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 83598
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3021-121440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121440.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.190308410207344,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-85640.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.08622528459253,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121439.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.085385661918647,
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-      "duration": 1.9146143380813534,
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-      "utterance_id": "7061-85635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-85635.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_4.wav",
-      "duration": 0.2465986394557823,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3021/cough/0132.wav",
-      "duration": 1.34,
-      "start_time": 9.796266082399868,
-      "speaker_id": "3021"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3021/laugh/0142.wav",
-      "duration": 0.9154342894066703,
-      "start_time": 18.359828265984962,
-      "speaker_id": "3021"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7061/laugh/0114.wav",
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-      "start_time": 30.200829607671146,
-      "speaker_id": "7061"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_001983.json b/conversations/conv_001983.json
deleted file mode 100644
index 1552415b9e1e8252cbe3da8f346e47d37f916179..0000000000000000000000000000000000000000
--- a/conversations/conv_001983.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.13395957715391,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.2206345376586025,
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-      "duration_frames": 99530,
-      "overlap": false,
-      "utterance_id": "1961-149739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-149739.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.104471424362547,
-      "end_time": 10.672404654028293,
-      "duration": 3.5679332296657464,
-      "start_frame": 113671,
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-      "overlap": false,
-      "utterance_id": "2487-169011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169011.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.255357619619634,
-      "end_time": 16.35352465360703,
-      "duration": 5.0981670339873935,
-      "start_frame": 180085,
-      "duration_frames": 81570,
-      "overlap": false,
-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.761563219651528,
-      "end_time": 22.367996020981035,
-      "duration": 5.6064328013295075,
-      "start_frame": 268185,
-      "duration_frames": 89702,
-      "overlap": false,
-      "utterance_id": "1961-145733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-145733.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.924731932734076,
-      "end_time": 27.86973914488828,
-      "duration": 4.945007212154202,
-      "start_frame": 366795,
-      "duration_frames": 79120,
-      "overlap": false,
-      "utterance_id": "2487-162474",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.671293203574827,
-      "end_time": 31.13395957715391,
-      "duration": 3.4626663735790832,
-      "start_frame": 442740,
-      "duration_frames": 55402,
-      "overlap": true,
-      "utterance_id": "1961-145733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-145733.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 89702
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "start_time": 29.196371355189946
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-  "paralinguistic_events": [
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-      "speaker_id": "2733"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001995.json b/conversations/conv_001995.json
deleted file mode 100644
index bfcea059e5f9ab1532a4aa4729cd66e0a9ce5382..0000000000000000000000000000000000000000
--- a/conversations/conv_001995.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.43010781341062,
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-      "start_frame": 0,
-      "duration_frames": 86881,
-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.06613869806759,
-      "end_time": 12.201194948566041,
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-      "utterance_id": "5712-48842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48842.flac |",
-      "real_speaker_id": "5712",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5712-48848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48848.flac |",
-      "real_speaker_id": "5712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.346041993476273,
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-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 86881
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5712-48848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48848.flac |",
-      "real_speaker_id": "5712",
-      "position_frames": 76088
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.193214089980952,
-      "end_time": 32.0,
-      "duration": 2.806785910019048,
-      "start_frame": 467091,
-      "duration_frames": 44908,
-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 165991
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Dishes",
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-    {
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-    {
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-      "duration": 1.28,
-      "start_time": 16.858243460662727,
-      "speaker_id": "6160"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001998.json b/conversations/conv_001998.json
deleted file mode 100644
index 845763906b329a8406cede0b9bfce4180f46d323..0000000000000000000000000000000000000000
--- a/conversations/conv_001998.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.219712504347683,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.547835156636377,
-      "duration": 3.547835156636377,
-      "start_frame": 0,
-      "duration_frames": 56765,
-      "overlap": false,
-      "utterance_id": "5412-39899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.1590233284318465,
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-      "utterance_id": "6981-70843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
-      "real_speaker_id": "6981",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.914233071644045,
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-      "duration_frames": 49973,
-      "overlap": false,
-      "utterance_id": "7683-103530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.927184570670997,
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-      "utterance_id": "5412-39899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 56765
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.467995955314528,
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-      "duration_frames": 95160,
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-      "utterance_id": "7683-103530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 49973
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.91480607777072,
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-      "duration": 5.304906426576963,
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-      "duration_frames": 84878,
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-      "utterance_id": "5412-39899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 144508
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 22.94501715163569,
-      "speaker_id": "7683"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_001999.json b/conversations/conv_001999.json
deleted file mode 100644
index bac964ecc83a6755a3fabe1e2b421a558306be59..0000000000000000000000000000000000000000
--- a/conversations/conv_001999.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.4275772407922185,
-      "duration": 5.4275772407922185,
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-      "overlap": false,
-      "utterance_id": "8097-108005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-108005.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.429131696057924,
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-      "utterance_id": "1913-147989",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-147989.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-108005.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 86841
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-    {
-      "segment_id": "seg0006",
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-      "start_time": 31.491396222440137,
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-      "utterance_id": "8097-108005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-108005.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 30.88,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "8097"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002004.json b/conversations/conv_002004.json
deleted file mode 100644
index 5d6e9215464de6bdcddbe47b6b4dfb0b966e5bc5..0000000000000000000000000000000000000000
--- a/conversations/conv_002004.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.661881800448458,
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-      "overlap": false,
-      "utterance_id": "6248-91255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-91255.flac |",
-      "real_speaker_id": "6248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.9608681140807676,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-91255.flac |",
-      "real_speaker_id": "6248",
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "6248-302581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-302581.flac |",
-      "real_speaker_id": "6248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.72817788480205,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163521.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2149-8912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-8912.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.739863091107935,
-      "end_time": 32.0,
-      "duration": 1.2601369088920649,
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-      "duration_frames": 20162,
-      "overlap": false,
-      "utterance_id": "2448-163521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163521.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 68126
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002008.json b/conversations/conv_002008.json
deleted file mode 100644
index 927ff956cebf29f657a6ac8573f1f39d9520b5b2..0000000000000000000000000000000000000000
--- a/conversations/conv_002008.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.673220148984253,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2992-164100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164100.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.8312343026377125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164101.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.90240783912155,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 103692
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.828937900690562,
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-      "overlap": false,
-      "utterance_id": "2992-164101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164101.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 89174
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54613.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002012.json b/conversations/conv_002012.json
deleted file mode 100644
index 475ecdbd7501e40f0d3d7859602b140b1a718203..0000000000000000000000000000000000000000
--- a/conversations/conv_002012.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.18477295621058,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5009-29143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.227114960159156,
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-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "5009-29142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29142.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.243758959724587,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.226833593079366,
-      "end_time": 24.933469739072628,
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-      "duration_frames": 91306,
-      "overlap": true,
-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 89642
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.060733260975,
-      "end_time": 31.18477295621058,
-      "duration": 5.124039695235582,
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-      "overlap": false,
-      "utterance_id": "5009-29143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 60379
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5009/laugh/0117.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5009/cough/0075.wav",
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-      "speaker_id": "5009"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002019.json b/conversations/conv_002019.json
deleted file mode 100644
index 8434d4d62ecfd6cda9107596e287ceeee82a6b0d..0000000000000000000000000000000000000000
--- a/conversations/conv_002019.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4076548991375377,
-      "duration": 3.4076548991375377,
-      "start_frame": 0,
-      "duration_frames": 54522,
-      "overlap": false,
-      "utterance_id": "2691-156750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156750.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-29108.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 9.36332211705297,
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-      "utterance_id": "2691-156745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156745.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156745.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 94899
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.513479844257557,
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-      "duration": 6.008341294804753,
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-      "utterance_id": "3641-134615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-134615.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.062424001810374,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-29108.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 82350
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4848/cough/0035.wav",
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-      "start_time": 6.525226413729891,
-      "speaker_id": "4848"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002023.json b/conversations/conv_002023.json
deleted file mode 100644
index 9f5d017aa5cabf3fe967a5aefbe8f38ed678a4f1..0000000000000000000000000000000000000000
--- a/conversations/conv_002023.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.747052535904185,
-      "duration": 4.747052535904185,
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-      "duration_frames": 75952,
-      "overlap": false,
-      "utterance_id": "7126-59167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59167.flac |",
-      "real_speaker_id": "7126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.039114510437274,
-      "end_time": 8.754516772450291,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
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-      "utterance_id": "8312-279791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279791.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59175.flac |",
-      "real_speaker_id": "7126",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.409658939414165,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279791.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 78996
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 4.7345425575811895,
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-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 59446
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "start_time": 3.6911527095426884,
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-      "speaker_id": "8312"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002024.json b/conversations/conv_002024.json
deleted file mode 100644
index 9a6381a01c590bddd2b15cb31b93e1591af6a2da..0000000000000000000000000000000000000000
--- a/conversations/conv_002024.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "4744-31668",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4744-31668.flac |",
-      "real_speaker_id": "4744",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "4744-4158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4744-4158.flac |",
-      "real_speaker_id": "4744",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "964-124570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/964-124570.flac |",
-      "real_speaker_id": "964",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.296948271569505,
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-      "overlap": false,
-      "utterance_id": "2975-151995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2975-151995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
-      "position_frames": 68584
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-  ],
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-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-      "duration": 1.48,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 26.85363847828307,
-      "speaker_id": "2975"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002028.json b/conversations/conv_002028.json
deleted file mode 100644
index f40751336d7ccc3c5c1268cc7a9478704dbd3515..0000000000000000000000000000000000000000
--- a/conversations/conv_002028.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.927870733175684,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3717-21493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21493.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.405713820327128,
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-      "utterance_id": "6746-72302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6746-72302.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3717-21493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21493.flac |",
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-      "position_frames": 60822
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-    {
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-    {
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-      "utterance_id": "3717-178149",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "start_time": 27.645129978189278,
-      "speaker_id": "3717"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002032.json b/conversations/conv_002032.json
deleted file mode 100644
index 20ae2a623c217c6d10b5a5a6400dae8629b001fb..0000000000000000000000000000000000000000
--- a/conversations/conv_002032.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.790618925331633,
-      "duration": 4.790618925331633,
-      "start_frame": 0,
-      "duration_frames": 76649,
-      "overlap": false,
-      "utterance_id": "4719-25765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.427934927060714,
-      "end_time": 10.058675934374772,
-      "duration": 4.630741007314058,
-      "start_frame": 86846,
-      "duration_frames": 74091,
-      "overlap": false,
-      "utterance_id": "7433-89646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89646.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.815725980070761,
-      "end_time": 17.712767578159333,
-      "duration": 6.897041598088572,
-      "start_frame": 173051,
-      "duration_frames": 110352,
-      "overlap": false,
-      "utterance_id": "4719-25765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 76649
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.29677617374626,
-      "end_time": 23.586259358309796,
-      "duration": 5.289483184563537,
-      "start_frame": 292748,
-      "duration_frames": 84631,
-      "overlap": false,
-      "utterance_id": "7433-261115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-261115.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.416998493711944,
-      "end_time": 29.718528053964892,
-      "duration": 5.301529560252949,
-      "start_frame": 390671,
-      "duration_frames": 84824,
-      "overlap": false,
-      "utterance_id": "4719-25766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.043226561732638,
-      "end_time": 32.0,
-      "duration": 1.956773438267362,
-      "start_frame": 480691,
-      "duration_frames": 31308,
-      "overlap": false,
-      "utterance_id": "7433-89646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89646.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 74091
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.398099174331362,
-      "start_time": 23.882528907511084
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4719/laugh/0039.wav",
-      "duration": 1.04,
-      "start_time": 9.709588476929673,
-      "speaker_id": "4719"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4719/cough/0095.wav",
-      "duration": 1.2363157406507745,
-      "start_time": 9.543206487881823,
-      "speaker_id": "4719"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7433/cough/0002.wav",
-      "duration": 0.6020130891202566,
-      "start_time": 17.629216240070512,
-      "speaker_id": "7433"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7433/laugh/0124.wav",
-      "duration": 1.107503960159164,
-      "start_time": 28.701956957302613,
-      "speaker_id": "7433"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002033.json b/conversations/conv_002033.json
deleted file mode 100644
index d3a419ff94d726d7a4d0446846f6abb0fbae9039..0000000000000000000000000000000000000000
--- a/conversations/conv_002033.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.661096453256965,
-      "duration": 5.661096453256965,
-      "start_frame": 0,
-      "duration_frames": 90577,
-      "overlap": false,
-      "utterance_id": "5951-233090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-233090.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.999693152075196,
-      "end_time": 10.350119742214092,
-      "duration": 4.3504265901388965,
-      "start_frame": 95995,
-      "duration_frames": 69606,
-      "overlap": false,
-      "utterance_id": "5951-233090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-233090.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 90577
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.29903959243526,
-      "end_time": 14.858088771218421,
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-      "start_frame": 180784,
-      "duration_frames": 56944,
-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.837378293252094,
-      "end_time": 21.26579205051582,
-      "duration": 5.428413757263727,
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-      "duration_frames": 86854,
-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 56944
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.72267294986633,
-      "end_time": 28.25406970800356,
-      "duration": 6.531396758137229,
-      "start_frame": 347562,
-      "duration_frames": 104502,
-      "overlap": false,
-      "utterance_id": "5951-233090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-233090.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 160183
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.156361426904912,
-      "end_time": 32.0,
-      "duration": 2.843638573095088,
-      "start_frame": 466501,
-      "duration_frames": 45498,
-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 143798
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
-      "duration": 2.249795918367347,
-      "start_time": 13.419278898872893
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
-      "duration": 0.14183673469387756,
-      "start_time": 31.18032844865703
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5951/laugh/0102.wav",
-      "duration": 0.823055209101619,
-      "start_time": 5.0715656236569995,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5951/cough/0051.wav",
-      "duration": 1.401972306047966,
-      "start_time": 4.414673756315524,
-      "speaker_id": "5951"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6160/laugh/0025.wav",
-      "duration": 1.0801404518445594,
-      "start_time": 15.018211497703508,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6160/cough/0063.wav",
-      "duration": 1.0561021321942858,
-      "start_time": 21.310583797964906,
-      "speaker_id": "6160"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6160/laugh/0081.wav",
-      "duration": 1.64,
-      "start_time": 30.36,
-      "speaker_id": "6160"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002045.json b/conversations/conv_002045.json
deleted file mode 100644
index 965c7b3b3f71ba58b63dd8a7e4b688b3c901eca7..0000000000000000000000000000000000000000
--- a/conversations/conv_002045.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.827152350642468,
-      "duration": 6.827152350642468,
-      "start_frame": 0,
-      "duration_frames": 109234,
-      "overlap": false,
-      "utterance_id": "8799-291938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-291938.flac |",
-      "real_speaker_id": "8799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.874216572799526,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-144137.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 71190
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 23.615578030471855,
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-      "overlap": false,
-      "utterance_id": "3109-165420",
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-      "real_speaker_id": "3109",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.574244615283945,
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-      "overlap": false,
-      "utterance_id": "3109-144137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-144137.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 57374
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
-    {
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/229/laugh/0005.wav",
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-      "start_time": 22.122677991985253,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002049.json b/conversations/conv_002049.json
deleted file mode 100644
index f5c3a8aa6176b72a79eca410f758d31f43f6c5aa..0000000000000000000000000000000000000000
--- a/conversations/conv_002049.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "5152-81827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5152-81827.flac |",
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-      "position_frames": 0
-    },
-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54007.flac |",
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-    {
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-    {
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6078/cough/0124.wav",
-      "duration": 0.4277231917626261,
-      "start_time": 9.697908082417198,
-      "speaker_id": "6078"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3588/laugh/0029.wav",
-      "duration": 0.92,
-      "start_time": 18.62974058031288,
-      "speaker_id": "3588"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002053.json b/conversations/conv_002053.json
deleted file mode 100644
index 572cf4b821d5dda5ff764e61008da419f65fd8a1..0000000000000000000000000000000000000000
--- a/conversations/conv_002053.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.346872356093672,
-      "duration": 5.346872356093672,
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-      "overlap": false,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.540406344334238,
-      "end_time": 11.390811464071874,
-      "duration": 4.850405119737635,
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-      "utterance_id": "4238-12895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12895.flac |",
-      "real_speaker_id": "4238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.219255426937362,
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-      "overlap": false,
-      "utterance_id": "6242-26941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.612595877285326,
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-      "duration": 6.045096222026776,
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-      "duration_frames": 96721,
-      "overlap": true,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 85549
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.667288455508306,
-      "end_time": 27.882327188087395,
-      "duration": 5.215038732579089,
-      "start_frame": 362676,
-      "duration_frames": 83440,
-      "overlap": true,
-      "utterance_id": "6242-26941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
-      "position_frames": 69979
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.334994441791203,
-      "end_time": 32.0,
-      "duration": 2.6650055582087973,
-      "start_frame": 469359,
-      "duration_frames": 42640,
-      "overlap": false,
-      "utterance_id": "4238-12895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12895.flac |",
-      "real_speaker_id": "4238",
-      "position_frames": 77606
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "Dishes",
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-      "speaker_id": "4238"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002058.json b/conversations/conv_002058.json
deleted file mode 100644
index d3ec9786016fce32779d82cc4f2e8a4a1fbdc54d..0000000000000000000000000000000000000000
--- a/conversations/conv_002058.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.586760021613608,
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-      "overlap": false,
-      "utterance_id": "8180-274724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274724.flac |",
-      "real_speaker_id": "8180",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "4379-18034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18034.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
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-      "utterance_id": "4379-18040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18040.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.793580185405016,
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-      "duration_frames": 79984,
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-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 62745
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.968514185135284,
-      "end_time": 29.51982465526594,
-      "duration": 5.551310470130654,
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-      "duration_frames": 88820,
-      "overlap": false,
-      "utterance_id": "4379-18040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18040.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 92109
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.776665023724867,
-      "end_time": 32.0,
-      "duration": 2.223334976275133,
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-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 142729
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "duration": 0.96,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4379/cough/0109.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002065.json b/conversations/conv_002065.json
deleted file mode 100644
index a317fb4b6e29b4a5a1444da116500b77ebf54aab..0000000000000000000000000000000000000000
--- a/conversations/conv_002065.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2790-142824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.708626643685845,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 64960
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "5164-19197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-19197.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2790",
-      "position_frames": 96154
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 36686,
-      "overlap": false,
-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 148224
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002069.json b/conversations/conv_002069.json
deleted file mode 100644
index 16b8f4ccb3e163355800ac4e6769c5639e90f8b3..0000000000000000000000000000000000000000
--- a/conversations/conv_002069.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.21831214325786,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "8138-293529",
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-    {
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-      "segment_id": "seg0002",
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-    {
-      "segment_id": "seg0003",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
-      "duration": 1.226863778064447,
-      "start_time": 28.745903902891364
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8138/laugh/0057.wav",
-      "duration": 0.7940080910710914,
-      "start_time": 6.679096848082932,
-      "speaker_id": "8138"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4806/laugh/0024.wav",
-      "duration": 1.12,
-      "start_time": 11.778548240971102,
-      "speaker_id": "4806"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002073.json b/conversations/conv_002073.json
deleted file mode 100644
index 6ab967378a343155a6c2a81d074757fed1e53c99..0000000000000000000000000000000000000000
--- a/conversations/conv_002073.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.270684269375447,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.501006923352822,
-      "duration": 3.501006923352822,
-      "start_frame": 0,
-      "duration_frames": 56016,
-      "overlap": false,
-      "utterance_id": "5802-66347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-66347.flac |",
-      "real_speaker_id": "5802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.34867535714984,
-      "end_time": 10.23125120553232,
-      "duration": 5.882575848382481,
-      "start_frame": 69578,
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-      "overlap": false,
-      "utterance_id": "3135-166688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3135-166688.flac |",
-      "real_speaker_id": "3135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.534585775302851,
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-      "duration": 4.6462606245739915,
-      "start_frame": 168553,
-      "duration_frames": 74340,
-      "overlap": false,
-      "utterance_id": "2533-149939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.54919266049345,
-      "end_time": 21.75573958798852,
-      "duration": 6.206546927495069,
-      "start_frame": 248787,
-      "duration_frames": 99304,
-      "overlap": false,
-      "utterance_id": "5802-76044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-76044.flac |",
-      "real_speaker_id": "5802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.036317543375745,
-      "end_time": 27.358675755981366,
-      "duration": 4.322358212605623,
-      "start_frame": 368581,
-      "duration_frames": 69157,
-      "overlap": false,
-      "utterance_id": "5802-76044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-76044.flac |",
-      "real_speaker_id": "5802",
-      "position_frames": 99304
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.17436959115396,
-      "end_time": 31.270684269375447,
-      "duration": 4.096314678221489,
-      "start_frame": 434789,
-      "duration_frames": 65541,
-      "overlap": true,
-      "utterance_id": "3135-166688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3135-166688.flac |",
-      "real_speaker_id": "3135",
-      "position_frames": 94121
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
-      "duration": 22.674643891999278,
-      "start_time": 6.399929643144678
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3135/laugh/0107.wav",
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-      "start_time": 10.479235827589047,
-      "speaker_id": "3135"
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-    {
-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 10.366080101454129,
-      "speaker_id": "3135"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5802/cough/0032.wav",
-      "duration": 0.9019740275247827,
-      "start_time": 21.759084787230925,
-      "speaker_id": "5802"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3135/laugh/0094.wav",
-      "duration": 0.709139240156244,
-      "start_time": 29.015469889308385,
-      "speaker_id": "3135"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002086.json b/conversations/conv_002086.json
deleted file mode 100644
index e2c5cd80b78d9be6282612bbc66bae2b45f22b2d..0000000000000000000000000000000000000000
--- a/conversations/conv_002086.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.156017943271859,
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-      "start_frame": 0,
-      "duration_frames": 98496,
-      "overlap": false,
-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.952066551510475,
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-      "duration": 4.676602631946275,
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-      "utterance_id": "5439-31625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31625.flac |",
-      "real_speaker_id": "5439",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration": 5.537832298036234,
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-      "duration_frames": 88605,
-      "overlap": true,
-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 98496
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.690158595175113,
-      "end_time": 23.608583017767966,
-      "duration": 5.918424422592852,
-      "start_frame": 283042,
-      "duration_frames": 94694,
-      "overlap": false,
-      "utterance_id": "1239-138254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1239-138254.flac |",
-      "real_speaker_id": "1239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.86972007296686,
-      "end_time": 28.052452467860725,
-      "duration": 4.182732394893865,
-      "start_frame": 381915,
-      "duration_frames": 66923,
-      "overlap": false,
-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 187101
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.847437371626754,
-      "end_time": 32.0,
-      "duration": 3.1525626283732464,
-      "start_frame": 461558,
-      "duration_frames": 50441,
-      "overlap": false,
-      "utterance_id": "1239-138254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1239-138254.flac |",
-      "real_speaker_id": "1239",
-      "position_frames": 94694
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
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-      "start_time": 19.651089903900083
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5439/laugh/0120.wav",
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-      "start_time": 7.275728731966258,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7481/laugh/0084.wav",
-      "duration": 1.48,
-      "start_time": 9.325493602311331,
-      "speaker_id": "7481"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002090.json b/conversations/conv_002090.json
deleted file mode 100644
index 5fcacdcb83ffd40b0ac02ca9d0876ec0c7a6671b..0000000000000000000000000000000000000000
--- a/conversations/conv_002090.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.155812386440804,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.16697285044498,
-      "duration": 5.16697285044498,
-      "start_frame": 0,
-      "duration_frames": 82671,
-      "overlap": false,
-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.161061709882287,
-      "end_time": 11.289094608551782,
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-      "utterance_id": "7945-112011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7945-112011.flac |",
-      "real_speaker_id": "7945",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.483735895669422,
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-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5604-26982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26982.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.99114126285024,
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-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 82671
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.676270891344885,
-      "end_time": 31.155812386440804,
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-      "start_frame": 474820,
-      "duration_frames": 23672,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7945-112011.flac |",
-      "real_speaker_id": "7945",
-      "position_frames": 82048
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.5,
-      "start_time": 0,
-      "speaker_id": "4406"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5604/laugh/0029.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5604/laugh/0021.wav",
-      "duration": 1.04,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7945/cough/0028.wav",
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-      "speaker_id": "7945"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002100.json b/conversations/conv_002100.json
deleted file mode 100644
index cde335de60f1b44150e6a3458a4509d4178fbf3b..0000000000000000000000000000000000000000
--- a/conversations/conv_002100.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.27705819919006,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.967845946885541,
-      "duration": 3.967845946885541,
-      "start_frame": 0,
-      "duration_frames": 63485,
-      "overlap": false,
-      "utterance_id": "8042-245695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-245695.flac |",
-      "real_speaker_id": "8042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.389446831901487,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-245695.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 148062
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.265879870987106,
-      "end_time": 31.27705819919006,
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-      "utterance_id": "3379-132592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
-      "duration": 3.8041826084185306,
-      "start_time": 16.597044158164515
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-      "event_class": "Cat",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8042/laugh/0137.wav",
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-      "speaker_id": "8042"
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-    {
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-      "duration": 1.32,
-      "start_time": 23.608992301288133,
-      "speaker_id": "5328"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3379/laugh/0101.wav",
-      "duration": 1.28,
-      "start_time": 28.302179966282452,
-      "speaker_id": "3379"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002116.json b/conversations/conv_002116.json
deleted file mode 100644
index 7cda21b7de2129a6e146bd48ed42e2fbb075086c..0000000000000000000000000000000000000000
--- a/conversations/conv_002116.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.249464837467588,
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-      "overlap": false,
-      "utterance_id": "949-138545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-138545.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.196356289971981,
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-      "duration": 5.334707638383511,
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-      "duration_frames": 85355,
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-      "utterance_id": "949-138545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-138545.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 83991
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "111-126265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126265.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.825211185780425,
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-      "utterance_id": "949-134657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134657.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.57752010880062,
-      "end_time": 30.342328359472646,
-      "duration": 5.7648082506720275,
-      "start_frame": 393240,
-      "duration_frames": 92236,
-      "overlap": false,
-      "utterance_id": "949-134657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134657.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 108543
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.7876246776731,
-      "end_time": 32.0,
-      "duration": 1.2123753223268992,
-      "start_frame": 492601,
-      "duration_frames": 19398,
-      "overlap": false,
-      "utterance_id": "8324-286682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286682.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
-      "duration": 0.8380952380952381,
-      "start_time": 11.69239726271167
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_17.wav",
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-      "start_time": 29.70378312514535
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/949/laugh/0115.wav",
-      "duration": 0.9102141181177574,
-      "start_time": 8.67825473853469,
-      "speaker_id": "949"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8324/laugh/0020.wav",
-      "duration": 1.3351601316293107,
-      "start_time": 30.664839868370688,
-      "speaker_id": "8324"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002120.json b/conversations/conv_002120.json
deleted file mode 100644
index 469c45630044a76c7f2cea6cd3b2cc72b82f5a55..0000000000000000000000000000000000000000
--- a/conversations/conv_002120.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.687089944737869,
-      "duration": 4.687089944737869,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6288-63105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63105.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.277057031071941,
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-      "overlap": true,
-      "utterance_id": "296-142727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-142727.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.768282086473498,
-      "end_time": 15.68208825276697,
-      "duration": 4.9138061662934716,
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-      "duration_frames": 78620,
-      "overlap": false,
-      "utterance_id": "1069-133709",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1069-133709.flac |",
-      "real_speaker_id": "1069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.952328788806941,
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-      "duration": 3.509276127891723,
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-      "overlap": false,
-      "utterance_id": "6288-63105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63105.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 74993
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.142729836567185,
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-      "duration": 5.7029974270436785,
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-      "overlap": false,
-      "utterance_id": "296-142727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-142727.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 85753
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.392982654016155,
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-      "start_frame": 422287,
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-      "overlap": false,
-      "utterance_id": "6288-63105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63105.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 131141
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.252904851462162,
-      "end_time": 32.0,
-      "duration": 0.7470951485378379,
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-      "overlap": false,
-      "utterance_id": "6288-63111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63111.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "start_time": 4.087894416306698
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/232915.wav",
-      "duration": 4.068775510204081,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/296/laugh/0036.wav",
-      "duration": 1.28,
-      "start_time": 7.126648764552808,
-      "speaker_id": "296"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1069/cough/0021.wav",
-      "duration": 1.1786222687649206,
-      "start_time": 15.739031302723875,
-      "speaker_id": "1069"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/296/cough/0106.wav",
-      "duration": 1.164305692479754,
-      "start_time": 18.783417697796587,
-      "speaker_id": "296"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6288/cough/0052.wav",
-      "duration": 1.04,
-      "start_time": 25.224647831090326,
-      "speaker_id": "6288"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6288/cough/0087.wav",
-      "duration": 1.1765507394038495,
-      "start_time": 30.82344926059615,
-      "speaker_id": "6288"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002136.json b/conversations/conv_002136.json
deleted file mode 100644
index 6201b3c79751653fe69511524f1a6c20a3e3981e..0000000000000000000000000000000000000000
--- a/conversations/conv_002136.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.9058446984594335,
-      "duration": 4.9058446984594335,
-      "start_frame": 0,
-      "duration_frames": 78493,
-      "overlap": false,
-      "utterance_id": "2775-161226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-161226.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.627327156773565,
-      "end_time": 9.850711953058882,
-      "duration": 5.223384796285317,
-      "start_frame": 74037,
-      "duration_frames": 83574,
-      "overlap": true,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.948851843867264,
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-      "duration": 4.858618994445181,
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-      "duration_frames": 77737,
-      "overlap": false,
-      "utterance_id": "2775-134792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-134792.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.047482255854494,
-      "end_time": 20.16569644801425,
-      "duration": 3.1182141921597553,
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-      "duration_frames": 49891,
-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.586218259301518,
-      "end_time": 25.198067126908825,
-      "duration": 3.611848867607308,
-      "start_frame": 345379,
-      "duration_frames": 57789,
-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 49891
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.491433774578887,
-      "end_time": 30.068161058890723,
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-      "duration_frames": 57227,
-      "overlap": false,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 83574
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.08085360639599,
-      "end_time": 32.0,
-      "duration": 0.9191463936040094,
-      "start_frame": 497293,
-      "duration_frames": 14706,
-      "overlap": false,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 140801
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 17.603120467075247,
-      "start_time": 7.231874229000953
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
-      "duration": 3.734579056091038,
-      "start_time": 6.7179605295053815
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2775/laugh/0088.wav",
-      "duration": 0.6737529755792739,
-      "start_time": 0,
-      "speaker_id": "2775"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5290/laugh/0015.wav",
-      "duration": 1.0362620864036882,
-      "start_time": 15.899498329725958,
-      "speaker_id": "5290"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5290/cough/0020.wav",
-      "duration": 1.4,
-      "start_time": 15.558281769576013,
-      "speaker_id": "5290"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6853/cough/0079.wav",
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-      "start_time": 25.667802064084952,
-      "speaker_id": "6853"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002141.json b/conversations/conv_002141.json
deleted file mode 100644
index 8ff4078670fed20a1624b9f9414649faa02d1097..0000000000000000000000000000000000000000
--- a/conversations/conv_002141.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.1160348974025,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.553153543391282,
-      "duration": 6.553153543391282,
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-  "foreground_events": [
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_002157.json b/conversations/conv_002157.json
deleted file mode 100644
index 41c59d0747abee017cf2b5258ffd7a7f6a778aa8..0000000000000000000000000000000000000000
--- a/conversations/conv_002157.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132462.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155524.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112691.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155524.flac |",
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-      "utterance_id": "2488-155524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155524.flac |",
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_002161.json b/conversations/conv_002161.json
deleted file mode 100644
index 51f6800002ff928e1db050d5bfe83f420e02fc12..0000000000000000000000000000000000000000
--- a/conversations/conv_002161.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "4742",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_002166.json b/conversations/conv_002166.json
deleted file mode 100644
index adbac5551a696f57c2c359f7c1aef1e297152522..0000000000000000000000000000000000000000
--- a/conversations/conv_002166.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "4734-220951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220951.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4009-43910.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7881",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-110131.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 98393
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_002176.json b/conversations/conv_002176.json
deleted file mode 100644
index d06123edab8998b9b51dcceb98b43c8d75c4c820..0000000000000000000000000000000000000000
--- a/conversations/conv_002176.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.4854256477009,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43301.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 0
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-    {
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-      "utterance_id": "5678-43303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43303.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.082731368700077,
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-      "utterance_id": "5933-73033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-73033.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 76684
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.467430741995102,
-      "end_time": 31.4854256477009,
-      "duration": 5.017994905705798,
-      "start_frame": 423478,
-      "duration_frames": 80287,
-      "overlap": true,
-      "utterance_id": "5678-43302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43302.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
-      "duration": 3.8129542134572043,
-      "start_time": 8.54114266821328
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5678/laugh/0069.wav",
-      "duration": 0.92,
-      "start_time": 4.193949149802721,
-      "speaker_id": "5678"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5678/laugh/0039.wav",
-      "duration": 0.8780568624665486,
-      "start_time": 8.841638357339475,
-      "speaker_id": "5678"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5933/cough/0004.wav",
-      "duration": 1.291182749569094,
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-      "speaker_id": "5933"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5678/cough/0088.wav",
-      "duration": 1.098082855046164,
-      "start_time": 30.901917144953835,
-      "speaker_id": "5678"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002177.json b/conversations/conv_002177.json
deleted file mode 100644
index 146c0ed44085e46976e982a503a9425cea18588b..0000000000000000000000000000000000000000
--- a/conversations/conv_002177.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.576653540133186,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.813900043893318,
-      "duration": 5.813900043893318,
-      "start_frame": 0,
-      "duration_frames": 93022,
-      "overlap": false,
-      "utterance_id": "948-132710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132710.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.693392642449409,
-      "end_time": 11.565989825208405,
-      "duration": 4.872597182758996,
-      "start_frame": 107094,
-      "duration_frames": 77961,
-      "overlap": false,
-      "utterance_id": "4161-185349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.443420335190206,
-      "end_time": 17.149502141715026,
-      "duration": 4.7060818065248196,
-      "start_frame": 199094,
-      "duration_frames": 75297,
-      "overlap": false,
-      "utterance_id": "480-126292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126292.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.622128333357953,
-      "end_time": 24.30908522452581,
-      "duration": 6.6869568911678545,
-      "start_frame": 281954,
-      "duration_frames": 106991,
-      "overlap": false,
-      "utterance_id": "948-132707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132707.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.780095405816905,
-      "end_time": 31.576653540133186,
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-      "utterance_id": "480-123176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-123176.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
-      "duration": 0.14183673469387756,
-      "start_time": 16.012710414144316
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/480/laugh/0121.wav",
-      "duration": 0.6795964943207236,
-      "start_time": 29.316227429010535,
-      "speaker_id": "480"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002182.json b/conversations/conv_002182.json
deleted file mode 100644
index d9aa77f4bea2da7e23af0ce57b8e29f65d4fda8a..0000000000000000000000000000000000000000
--- a/conversations/conv_002182.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.50536481307263,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6333-39676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39676.flac |",
-      "real_speaker_id": "6333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.870653811044225,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-39664.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6368-230929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-230929.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.481884735923547,
-      "end_time": 24.61441286477693,
-      "duration": 4.132528128853385,
-      "start_frame": 327710,
-      "duration_frames": 66120,
-      "overlap": false,
-      "utterance_id": "8225-274374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274374.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.562914166052714,
-      "end_time": 30.50536481307263,
-      "duration": 5.942450647019919,
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-      "duration_frames": 95079,
-      "overlap": true,
-      "utterance_id": "6333-39671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39671.flac |",
-      "real_speaker_id": "6333",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
-      "duration": 0.35356009070294786,
-      "start_time": 6.277604433835466
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8225/laugh/0033.wav",
-      "duration": 1.2,
-      "start_time": 24.641663766729724,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8225/cough/0022.wav",
-      "duration": 0.3640675485851135,
-      "start_time": 24.72153292914449,
-      "speaker_id": "8225"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002189.json b/conversations/conv_002189.json
deleted file mode 100644
index 37c38328ea91e4158caf914706aef09c7db7e985..0000000000000000000000000000000000000000
--- a/conversations/conv_002189.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.34755646499415,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.524473172140334,
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-      "start_frame": 0,
-      "duration_frames": 104391,
-      "overlap": false,
-      "utterance_id": "5185-24772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5185-24772.flac |",
-      "real_speaker_id": "5185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.971817152209924,
-      "end_time": 10.311020092419675,
-      "duration": 3.3392029402097507,
-      "start_frame": 111549,
-      "duration_frames": 53427,
-      "overlap": false,
-      "utterance_id": "593-126928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126928.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.001058882733062,
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-      "start_frame": 176016,
-      "duration_frames": 77455,
-      "overlap": true,
-      "utterance_id": "5185-24763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5185-24763.flac |",
-      "real_speaker_id": "5185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.92946900502346,
-      "end_time": 20.571246398457433,
-      "duration": 3.641777393433971,
-      "start_frame": 270871,
-      "duration_frames": 58268,
-      "overlap": false,
-      "utterance_id": "593-126928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126928.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 53427
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.03001519669106,
-      "end_time": 24.204794483843287,
-      "duration": 3.174779287152226,
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-      "utterance_id": "5185-24772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5185-24772.flac |",
-      "real_speaker_id": "5185",
-      "position_frames": 104391
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.078067388440736,
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-      "duration": 4.126603301106146,
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-      "duration_frames": 66025,
-      "overlap": false,
-      "utterance_id": "8172-281514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281514.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.918450843512407,
-      "end_time": 31.34755646499415,
-      "duration": 2.4291056214817424,
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-      "duration_frames": 38865,
-      "overlap": true,
-      "utterance_id": "5185-24772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5185-24772.flac |",
-      "real_speaker_id": "5185",
-      "position_frames": 155187
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "start_time": 10.319383655626925,
-      "speaker_id": "593"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8172/laugh/0057.wav",
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-      "speaker_id": "8172"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5185/laugh/0138.wav",
-      "duration": 1.38,
-      "start_time": 27.26006727387837,
-      "speaker_id": "5185"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002194.json b/conversations/conv_002194.json
deleted file mode 100644
index f98fb7b5aaa0e33f40039324973fed861b805a93..0000000000000000000000000000000000000000
--- a/conversations/conv_002194.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.358780987747095,
-      "duration": 5.358780987747095,
-      "start_frame": 0,
-      "duration_frames": 85740,
-      "overlap": false,
-      "utterance_id": "115-121720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121720.flac |",
-      "real_speaker_id": "115",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.092896264231555,
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-      "duration_frames": 77718,
-      "overlap": false,
-      "utterance_id": "4116-3582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-3582.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.031454002292113,
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-      "utterance_id": "115-121896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121896.flac |",
-      "real_speaker_id": "115",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.38882145430197,
-      "end_time": 23.77669282516957,
-      "duration": 6.387871370867601,
-      "start_frame": 278221,
-      "duration_frames": 102205,
-      "overlap": false,
-      "utterance_id": "217-122443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/217-122443.flac |",
-      "real_speaker_id": "217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.33406080459985,
-      "end_time": 29.38363706855417,
-      "duration": 5.049576263954317,
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-      "overlap": false,
-      "utterance_id": "4116-13265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-13265.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.090976442264353,
-      "end_time": 32.0,
-      "duration": 1.9090235577356474,
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-      "utterance_id": "217-122443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/217-122443.flac |",
-      "real_speaker_id": "217",
-      "position_frames": 102205
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
-      "duration": 0.31396825396825395,
-      "start_time": 5.162044236416048
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4116/cough/0043.wav",
-      "duration": 0.92,
-      "start_time": 9.621849950993862,
-      "speaker_id": "4116"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002198.json b/conversations/conv_002198.json
deleted file mode 100644
index 6ae9a261ca875cb95a86aaebe0c7dc4a23bebed0..0000000000000000000000000000000000000000
--- a/conversations/conv_002198.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.422625211300147,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.5906707075735405,
-      "duration": 4.5906707075735405,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1264-135033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-135033.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.129616836644147,
-      "end_time": 10.007110824877124,
-      "duration": 4.877493988232976,
-      "start_frame": 82073,
-      "duration_frames": 78039,
-      "overlap": false,
-      "utterance_id": "2416-152139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.187379396766381,
-      "end_time": 14.817184772848222,
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-      "duration_frames": 74076,
-      "overlap": false,
-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.753739775927034,
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-      "overlap": false,
-      "utterance_id": "1264-129805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-129805.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.85380371471026,
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 74076
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.30646665251131,
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-      "duration": 5.116158558788837,
-      "start_frame": 404903,
-      "duration_frames": 81858,
-      "overlap": false,
-      "utterance_id": "2416-152137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
-      "start_time": 3.077200996424664
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
-      "duration": 0.2008390022675737,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.8913998948349922,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1264/laugh/0095.wav",
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-      "start_time": 14.552168292318582,
-      "speaker_id": "1264"
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "start_time": 30.458507586630468,
-      "speaker_id": "2416"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002199.json b/conversations/conv_002199.json
deleted file mode 100644
index 94a36ed39df44f5c67927a68a0e2d03a0525f2a7..0000000000000000000000000000000000000000
--- a/conversations/conv_002199.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.163865840713873,
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-      "start_frame": 0,
-      "duration_frames": 50621,
-      "overlap": false,
-      "utterance_id": "2624-88360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.397511393357001,
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-      "utterance_id": "909-131044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131044.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8879-300343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300343.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.792677541360732,
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-      "start_frame": 252682,
-      "duration_frames": 94178,
-      "overlap": false,
-      "utterance_id": "8879-300234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300234.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.960347159688318,
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-      "overlap": false,
-      "utterance_id": "2624-88360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 50621
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.100804540120183,
-      "end_time": 32.0,
-      "duration": 4.899195459879817,
-      "start_frame": 433612,
-      "duration_frames": 78387,
-      "overlap": false,
-      "utterance_id": "909-131044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131044.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 81892
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-      "start_time": 1.3948179185381235
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8879/laugh/0025.wav",
-      "duration": 1.1113993019109836,
-      "start_time": 10.503635360854394,
-      "speaker_id": "8879"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8879/laugh/0092.wav",
-      "duration": 0.642040277597045,
-      "start_time": 14.892566704025862,
-      "speaker_id": "8879"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8879/cough/0046.wav",
-      "duration": 1.04,
-      "start_time": 21.844183332941572,
-      "speaker_id": "8879"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002205.json b/conversations/conv_002205.json
deleted file mode 100644
index 9d995440f0e7d286d7c8653e3a4111c7a0a9e47a..0000000000000000000000000000000000000000
--- a/conversations/conv_002205.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.811074451172191,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6798-77740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77740.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.96856359676716,
-      "end_time": 9.42718992036358,
-      "duration": 4.45862632359642,
-      "start_frame": 79497,
-      "duration_frames": 71338,
-      "overlap": true,
-      "utterance_id": "6784-76152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76152.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.012222752418166,
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-      "start_frame": 160195,
-      "duration_frames": 105072,
-      "overlap": false,
-      "utterance_id": "2148-6981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6981.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.633212383732797,
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-      "duration_frames": 66682,
-      "overlap": false,
-      "utterance_id": "6798-77739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77739.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.21514239954702,
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-      "overlap": false,
-      "utterance_id": "2148-6983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6983.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.669388751900435,
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-      "overlap": false,
-      "utterance_id": "6798-77739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77739.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 66682
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.35614352507125,
-      "end_time": 32.0,
-      "duration": 1.64385647492875,
-      "start_frame": 485698,
-      "duration_frames": 26301,
-      "overlap": false,
-      "utterance_id": "2148-6981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6981.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 105072
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 15.283898649146996,
-      "start_time": 3.5439552115886537
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.0880507074206713,
-      "start_time": 16.603872093529784
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6798/laugh/0103.wav",
-      "duration": 0.8252674081862374,
-      "start_time": 21.855285281628095,
-      "speaker_id": "6798"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6798/cough/0086.wav",
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-      "start_time": 21.898369615723485,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6798/cough/0093.wav",
-      "duration": 1.12,
-      "start_time": 24.407480194343353,
-      "speaker_id": "6798"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002208.json b/conversations/conv_002208.json
deleted file mode 100644
index 2de875f9845012c4119b33bcda49b337eed4691c..0000000000000000000000000000000000000000
--- a/conversations/conv_002208.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-161226.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2775/laugh/0106.wav",
-      "duration": 1.12,
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-      "speaker_id": "2775"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
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-      "event_class": "laugh",
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-      "start_time": 21.26601285315918,
-      "speaker_id": "412"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002209.json b/conversations/conv_002209.json
deleted file mode 100644
index 1baee2c16ee60c81408dc86f0fe668743be368a8..0000000000000000000000000000000000000000
--- a/conversations/conv_002209.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "781-126737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-126737.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.304617769047727,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-126737.flac |",
-      "real_speaker_id": "781",
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-    {
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-      "utterance_id": "6904-262291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
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-      "real_speaker_id": "781",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164330.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 84209
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164323.flac |",
-      "real_speaker_id": "1870",
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002213.json b/conversations/conv_002213.json
deleted file mode 100644
index 04883965a9dcbb935d2cda45895656a084890687..0000000000000000000000000000000000000000
--- a/conversations/conv_002213.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "811-130148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
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-    {
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-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 92350
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.72982383224056,
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-      "duration_frames": 79942,
-      "overlap": false,
-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 51694
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.64490265145004,
-      "end_time": 32.0,
-      "duration": 4.355097348549961,
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-      "duration_frames": 69681,
-      "overlap": false,
-      "utterance_id": "1977-133046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 65716
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_002222.json b/conversations/conv_002222.json
deleted file mode 100644
index eaf010921067c9df1f0502487712fdb548a166bd..0000000000000000000000000000000000000000
--- a/conversations/conv_002222.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.753513228640955,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "128-134883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
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-    },
-    {
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-    {
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-    {
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-    {
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-      "utterance_id": "294-130872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 128926
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/laugh/0021.wav",
-      "duration": 1.24,
-      "start_time": 3.1942493149614135,
-      "speaker_id": "4428"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/128/laugh/0083.wav",
-      "duration": 1.12,
-      "start_time": 18.324813490823338,
-      "speaker_id": "128"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002225.json b/conversations/conv_002225.json
deleted file mode 100644
index c9439ca095dfdf9dea848e92a131a433f6fb6d17..0000000000000000000000000000000000000000
--- a/conversations/conv_002225.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.594617304906445,
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-      "overlap": false,
-      "utterance_id": "483-125116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125116.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.46812060163823,
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-      "duration": 5.867548774751296,
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-      "utterance_id": "7502-100425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100425.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.794956974045014,
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-      "duration_frames": 65008,
-      "overlap": true,
-      "utterance_id": "8394-96177",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.511035667221492,
-      "end_time": 20.646549906060805,
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-      "start_frame": 248176,
-      "duration_frames": 82168,
-      "overlap": true,
-      "utterance_id": "483-125126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125126.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.68280037465938,
-      "end_time": 27.846307203265738,
-      "duration": 6.16350682860636,
-      "start_frame": 346924,
-      "duration_frames": 98616,
-      "overlap": false,
-      "utterance_id": "7502-100439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100439.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.203377256348183,
-      "end_time": 32.0,
-      "duration": 3.7966227436518167,
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-      "duration_frames": 60745,
-      "overlap": false,
-      "utterance_id": "483-125126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125126.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 82168
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7502/laugh/0000.wav",
-      "duration": 0.5985029541880369,
-      "start_time": 23.52139045901561,
-      "speaker_id": "7502"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002229.json b/conversations/conv_002229.json
deleted file mode 100644
index fc7309406406fdb2b93f12ddaa622714338380ef..0000000000000000000000000000000000000000
--- a/conversations/conv_002229.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-123202.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "7389-175357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-175357.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.74311611123707,
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 89269
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.393951938875897,
-      "end_time": 28.503703765820628,
-      "duration": 5.109751826944731,
-      "start_frame": 374303,
-      "duration_frames": 81756,
-      "overlap": false,
-      "utterance_id": "7389-295014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-295014.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.741779845786386,
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-      "duration": 3.258220154213614,
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-      "duration_frames": 52131,
-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 189557
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_002233.json b/conversations/conv_002233.json
deleted file mode 100644
index 25b1ca983613cc12e544fe28445e68cb02ba4d9f..0000000000000000000000000000000000000000
--- a/conversations/conv_002233.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.253216022401748,
-  "num_speakers": 3,
-  "overlap_rate": 0.5714285714285714,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2581-157857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-157857.flac |",
-      "real_speaker_id": "2581",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.625622564577242,
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-      "duration_frames": 89871,
-      "overlap": true,
-      "utterance_id": "313-127997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-127997.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.011775741597855,
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-      "duration_frames": 81233,
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-      "utterance_id": "313-127992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-127992.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "4681-13056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4681-13056.flac |",
-      "real_speaker_id": "4681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-128021.flac |",
-      "real_speaker_id": "313",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 76800,
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-      "utterance_id": "2581-157858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-157858.flac |",
-      "real_speaker_id": "2581",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.806771201544414,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/313/laugh/0107.wav",
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-      "start_time": 25.997499884987363,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/313/cough/0007.wav",
-      "duration": 1.0,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002234.json b/conversations/conv_002234.json
deleted file mode 100644
index fad41ddda530c7f586870cc624e6fcead15f8af0..0000000000000000000000000000000000000000
--- a/conversations/conv_002234.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.671563852314312,
-      "duration": 6.671563852314312,
-      "start_frame": 0,
-      "duration_frames": 106745,
-      "overlap": false,
-      "utterance_id": "3172-166439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
-      "real_speaker_id": "3172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.095897492734793,
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-      "utterance_id": "8825-292253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292253.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.71425363236882,
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-      "utterance_id": "4335-15082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15082.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
-      "real_speaker_id": "3172",
-      "position_frames": 106745
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.950158628307552,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292253.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 92433
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "paralinguistic_events": [
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-      "start_time": 23.861176772752206,
-      "speaker_id": "8825"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3172/laugh/0039.wav",
-      "duration": 1.1796557658918199,
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-    {
-      "event_class": "cough",
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-      "start_time": 31.049507270996482,
-      "speaker_id": "8825"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002244.json b/conversations/conv_002244.json
deleted file mode 100644
index a3587000042b0471c1c06dbcfd1955d29368f849..0000000000000000000000000000000000000000
--- a/conversations/conv_002244.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.00197462268647,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.9424811870119703,
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-      "overlap": false,
-      "utterance_id": "2473-157859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157859.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.371883520624626,
-      "end_time": 8.270208835478362,
-      "duration": 3.898325314853737,
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-      "utterance_id": "5045-1196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-1196.flac |",
-      "real_speaker_id": "5045",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.558558119655498,
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-      "overlap": false,
-      "utterance_id": "2473-157861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157861.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.701770839702935,
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-      "utterance_id": "3356-132542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3356-132542.flac |",
-      "real_speaker_id": "3356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.045275186802908,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157861.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 92674
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.342393908727402,
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-      "utterance_id": "5045-1197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-1197.flac |",
-      "real_speaker_id": "5045",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_5.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "2473"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2473/laugh/0090.wav",
-      "duration": 1.16,
-      "start_time": 16.65383654779828,
-      "speaker_id": "2473"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002248.json b/conversations/conv_002248.json
deleted file mode 100644
index 19ac3559d82d4522dc523d8f18063031d369054a..0000000000000000000000000000000000000000
--- a/conversations/conv_002248.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "5136-53512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-53512.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-71320.flac |",
-      "real_speaker_id": "5968",
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-      "segment_id": "seg0002",
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-      "start_time": 13.16102845128955,
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-      "overlap": false,
-      "utterance_id": "7215-91630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.26606593833769,
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-      "overlap": false,
-      "utterance_id": "5968-61356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-61356.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.682465619841764,
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-      "duration": 4.792976846010567,
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-      "duration_frames": 76687,
-      "overlap": false,
-      "utterance_id": "7215-91630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 91209
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.423737480493195,
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-      "utterance_id": "5968-61356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-61356.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 75556
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002252.json b/conversations/conv_002252.json
deleted file mode 100644
index 37778671bd2c1d028038756baa4c7086c0b03d56..0000000000000000000000000000000000000000
--- a/conversations/conv_002252.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.5462109495052,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3798-16984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16984.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.554845394890478,
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-      "utterance_id": "8337-284523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-284523.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.965546942642277,
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-      "utterance_id": "2494-156018",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156018.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3798-16981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16981.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.791852146207887,
-      "end_time": 27.39248656869666,
-      "duration": 3.600634422488776,
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-      "overlap": false,
-      "utterance_id": "8337-280361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-280361.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.22169693239809,
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-      "duration_frames": 53192,
-      "overlap": false,
-      "utterance_id": "3798-16981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16981.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 62546
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8337/laugh/0006.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002263.json b/conversations/conv_002263.json
deleted file mode 100644
index fb875c3b60305970683f708d4f7e2407923b9a49..0000000000000000000000000000000000000000
--- a/conversations/conv_002263.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.79372444269574,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.384501293792788,
-      "duration": 5.384501293792788,
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-      "utterance_id": "6519-231834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-231834.flac |",
-      "real_speaker_id": "6519",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.144091231996333,
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-      "start_frame": 98305,
-      "duration_frames": 102900,
-      "overlap": true,
-      "utterance_id": "3607-29116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-29116.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.837629277578268,
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-      "start_frame": 221402,
-      "duration_frames": 55592,
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-      "utterance_id": "6519-231834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-231834.flac |",
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-      "position_frames": 86152
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
-    {
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-      "speaker_id": "6519"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6519/laugh/0093.wav",
-      "duration": 1.0019910548088387,
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-      "speaker_id": "6519"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3607/laugh/0088.wav",
-      "duration": 1.3037707029798056,
-      "start_time": 24.314339544506062,
-      "speaker_id": "3607"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002264.json b/conversations/conv_002264.json
deleted file mode 100644
index af3ec91884503ad5a7137e9dc430aa1b10253bad..0000000000000000000000000000000000000000
--- a/conversations/conv_002264.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.02315244458864,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.150503445086877,
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-      "overlap": false,
-      "utterance_id": "1053-289242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-289242.flac |",
-      "real_speaker_id": "1053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.40813465881725,
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-      "utterance_id": "5731-50777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50777.flac |",
-      "real_speaker_id": "5731",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.333059070969163,
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-      "start_frame": 213328,
-      "duration_frames": 69272,
-      "overlap": false,
-      "utterance_id": "1053-132821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-132821.flac |",
-      "real_speaker_id": "1053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.3409295202072,
-      "end_time": 22.97914307158673,
-      "duration": 4.638213551379528,
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-      "duration_frames": 74211,
-      "overlap": false,
-      "utterance_id": "1053-132850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-132850.flac |",
-      "real_speaker_id": "1053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.62929669116107,
-      "end_time": 29.017790120635524,
-      "duration": 5.388493429474455,
-      "start_frame": 378068,
-      "duration_frames": 86215,
-      "overlap": false,
-      "utterance_id": "5076-284283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-284283.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.742840777458945,
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-      "duration": 2.280311667129695,
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-      "duration_frames": 36484,
-      "overlap": true,
-      "utterance_id": "1053-289242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-289242.flac |",
-      "real_speaker_id": "1053",
-      "position_frames": 98408
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1053/laugh/0048.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1053/cough/0004.wav",
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-      "speaker_id": "1053"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002268.json b/conversations/conv_002268.json
deleted file mode 100644
index 42bba85acfda93785f98e172a47491c4acdd0372..0000000000000000000000000000000000000000
--- a/conversations/conv_002268.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-132753.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
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-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 96898
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1595-138031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.655587432442967,
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-      "overlap": false,
-      "utterance_id": "5448-19208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.40855403451124,
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-      "duration": 4.591445965488759,
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-      "overlap": false,
-      "utterance_id": "1322-137589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137589.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1322/laugh/0098.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002272.json b/conversations/conv_002272.json
deleted file mode 100644
index 20bf3d85b0cbaa71ccd99c7ca40ab34332b76616..0000000000000000000000000000000000000000
--- a/conversations/conv_002272.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-129578.flac |",
-      "real_speaker_id": "104",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "104-132092",
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-      "real_speaker_id": "104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.799955468007497,
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_002275.json b/conversations/conv_002275.json
deleted file mode 100644
index 5824fee0d0b0bb93891a1d82147643b6a4630b17..0000000000000000000000000000000000000000
--- a/conversations/conv_002275.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.50371081660949,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1757-128103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128103.flac |",
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-    {
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-      "segment_id": "seg0006",
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-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6906/cough/0095.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6906/cough/0033.wav",
-      "duration": 0.6188437702028518,
-      "start_time": 20.90099445818617,
-      "speaker_id": "6906"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002287.json b/conversations/conv_002287.json
deleted file mode 100644
index 10b7da681207cf43beddbc94abfe787cad2b060f..0000000000000000000000000000000000000000
--- a/conversations/conv_002287.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.63490990321255,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.141634930645224,
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-      "overlap": false,
-      "utterance_id": "3967-292604",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-292604.flac |",
-      "real_speaker_id": "3967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.82629020015551,
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-      "duration": 4.784863428748109,
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-      "utterance_id": "5776-46889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5776-46889.flac |",
-      "real_speaker_id": "5776",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.052283232043147,
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-      "duration_frames": 85480,
-      "overlap": true,
-      "utterance_id": "3699-175950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-175950.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.203115176768378,
-      "end_time": 20.706371688423474,
-      "duration": 4.5032565116550956,
-      "start_frame": 259249,
-      "duration_frames": 72052,
-      "overlap": false,
-      "utterance_id": "3967-292604",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-292604.flac |",
-      "real_speaker_id": "3967",
-      "position_frames": 66266
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.182709389646444,
-      "end_time": 25.794443545235314,
-      "duration": 4.611734155588871,
-      "start_frame": 338923,
-      "duration_frames": 73787,
-      "overlap": false,
-      "utterance_id": "3699-19402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-19402.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.614128065710016,
-      "end_time": 31.63490990321255,
-      "duration": 5.020781837502533,
-      "start_frame": 425826,
-      "duration_frames": 80332,
-      "overlap": false,
-      "utterance_id": "3967-292604",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-292604.flac |",
-      "real_speaker_id": "3967",
-      "position_frames": 138318
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "3699"
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\ No newline at end of file
diff --git a/conversations/conv_002291.json b/conversations/conv_002291.json
deleted file mode 100644
index f847751060d715f2d1eccc304527b3a9454189e5..0000000000000000000000000000000000000000
--- a/conversations/conv_002291.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.436375681453118,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5656-44577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5656-44577.flac |",
-      "real_speaker_id": "5656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.3602431592373376,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5656-44577.flac |",
-      "real_speaker_id": "5656",
-      "position_frames": 49039
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.774654409350601,
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-      "utterance_id": "6914-119258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-119258.flac |",
-      "real_speaker_id": "6914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.833883198684774,
-      "end_time": 24.18805608485222,
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-      "overlap": false,
-      "utterance_id": "6914-119258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-119258.flac |",
-      "real_speaker_id": "6914",
-      "position_frames": 85665
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.46512766652656,
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-      "duration": 6.971248014926558,
-      "start_frame": 391442,
-      "duration_frames": 111539,
-      "overlap": false,
-      "utterance_id": "5656-44576",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5656-44576.flac |",
-      "real_speaker_id": "5656",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5656/laugh/0025.wav",
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-      "start_time": 13.976591834763099,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6914/cough/0124.wav",
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-      "duration": 1.16,
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-      "speaker_id": "5656"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002301.json b/conversations/conv_002301.json
deleted file mode 100644
index 78fd3e414850028d45e9d462776dbc63c79246a3..0000000000000000000000000000000000000000
--- a/conversations/conv_002301.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.024867288133202,
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-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.660174028509071,
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-      "real_speaker_id": "6126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.058037481833727,
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-      "overlap": true,
-      "utterance_id": "8066-290047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-290047.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.516775282754635,
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-      "duration_frames": 71328,
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-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 80397
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.118754016647745,
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-      "duration": 5.123780961951126,
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-      "utterance_id": "5791-31920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31920.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6126-10992",
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-      "real_speaker_id": "6126",
-      "position_frames": 65360
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.124710757165495,
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-      "utterance_id": "8066-290901",
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-      "real_speaker_id": "8066",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6126/cough/0022.wav",
-      "duration": 1.28,
-      "start_time": 4.362163004134177,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6126/laugh/0076.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8066/laugh/0062.wav",
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-      "speaker_id": "8066"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002317.json b/conversations/conv_002317.json
deleted file mode 100644
index 8a10937a86fc14e9f7cee6bfc215d6bb25d6fff6..0000000000000000000000000000000000000000
--- a/conversations/conv_002317.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "64-76973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76973.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133212.flac |",
-      "real_speaker_id": "543",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "64-76974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76974.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "543-133211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133211.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.06657022203556,
-      "end_time": 27.520163769371457,
-      "duration": 6.453593547335897,
-      "start_frame": 337065,
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-      "overlap": false,
-      "utterance_id": "64-76973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76973.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 93431
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.794940537537112,
-      "end_time": 32.0,
-      "duration": 4.205059462462888,
-      "start_frame": 444719,
-      "duration_frames": 67280,
-      "overlap": false,
-      "utterance_id": "543-137106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-137106.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.121924564085157,
-      "start_time": 23.558210836943516
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
-      "duration": 0.16043083900226757,
-      "start_time": 10.547418403712157
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/64/cough/0016.wav",
-      "duration": 0.7645618373874637,
-      "start_time": 0,
-      "speaker_id": "64"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/543/laugh/0012.wav",
-      "duration": 0.5638620249007011,
-      "start_time": 12.186059590056537,
-      "speaker_id": "543"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/543/laugh/0099.wav",
-      "duration": 0.8289233747937748,
-      "start_time": 20.522691742894224,
-      "speaker_id": "543"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002321.json b/conversations/conv_002321.json
deleted file mode 100644
index 679939465c78d021fa5856ba1cabe7cb4e661ae9..0000000000000000000000000000000000000000
--- a/conversations/conv_002321.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.03214221122388,
-      "duration": 5.03214221122388,
-      "start_frame": 0,
-      "duration_frames": 80514,
-      "overlap": false,
-      "utterance_id": "6037-59234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59234.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.93642744111918,
-      "end_time": 10.803714158082643,
-      "duration": 4.867286716963463,
-      "start_frame": 94982,
-      "duration_frames": 77876,
-      "overlap": false,
-      "utterance_id": "6010-56787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56787.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.880775704046327,
-      "end_time": 16.135623214742555,
-      "duration": 5.254847510696227,
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-      "duration_frames": 84077,
-      "overlap": true,
-      "utterance_id": "6037-59239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59239.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.59103854177015,
-      "end_time": 21.94603417734266,
-      "duration": 4.35499563557251,
-      "start_frame": 281456,
-      "duration_frames": 69679,
-      "overlap": false,
-      "utterance_id": "6010-56787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56787.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 77876
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.48237861403654,
-      "end_time": 26.454180638502834,
-      "duration": 3.9718020244662924,
-      "start_frame": 359718,
-      "duration_frames": 63548,
-      "overlap": false,
-      "utterance_id": "6037-59239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59239.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 84077
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.065445908351016,
-      "end_time": 32.0,
-      "duration": 4.934554091648984,
-      "start_frame": 433047,
-      "duration_frames": 78952,
-      "overlap": false,
-      "utterance_id": "6037-59239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59239.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 147625
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
-      "duration": 24.436349206349206,
-      "start_time": 4.997143855725562
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
-      "duration": 4.618674339576897,
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
-      "duration": 1.5977110213684909,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6010/laugh/0067.wav",
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-      "start_time": 4.893359435686286,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6037/laugh/0002.wav",
-      "duration": 1.4,
-      "start_time": 14.686649942203932,
-      "speaker_id": "6037"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6037/cough/0019.wav",
-      "duration": 0.971836649429187,
-      "start_time": 16.25312143408357,
-      "speaker_id": "6037"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6010/laugh/0089.wav",
-      "duration": 0.6922394304108435,
-      "start_time": 19.109449697214004,
-      "speaker_id": "6010"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002326.json b/conversations/conv_002326.json
deleted file mode 100644
index 42c3f4df0d3cfab28842839d7397bedca1f6d726..0000000000000000000000000000000000000000
--- a/conversations/conv_002326.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 29.678218248123027,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 6.599229682330773,
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-      "overlap": false,
-      "utterance_id": "1681-142313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142313.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.466507022986924,
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-      "start_frame": 103464,
-      "duration_frames": 75203,
-      "overlap": true,
-      "utterance_id": "7777-106366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.328221917728692,
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-      "duration": 5.189548679403951,
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-      "duration_frames": 83032,
-      "overlap": false,
-      "utterance_id": "1681-142301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.962448668134076,
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-      "duration": 3.8080923777905955,
-      "start_frame": 287399,
-      "duration_frames": 60929,
-      "overlap": false,
-      "utterance_id": "1681-142313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142313.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 105587
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.006354396340377,
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-      "duration": 4.1646417271593394,
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-      "duration_frames": 66634,
-      "overlap": false,
-      "utterance_id": "16-122828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122828.flac |",
-      "real_speaker_id": "16",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.84234435636361,
-      "end_time": 29.678218248123027,
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-      "start_frame": 413477,
-      "duration_frames": 61373,
-      "overlap": true,
-      "utterance_id": "7777-106367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106367.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 22.887713119547684,
-      "start_time": 1.4418820567735835
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
-      "duration": 4.3363619219165805,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7777/laugh/0063.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1681/laugh/0014.wav",
-      "duration": 0.77665632274015,
-      "start_time": 11.507733427520547,
-      "speaker_id": "1681"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1681/cough/0108.wav",
-      "duration": 0.4707921909330778,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1681/cough/0068.wav",
-      "duration": 1.1162076605557254,
-      "start_time": 16.72127782636538,
-      "speaker_id": "1681"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/16/laugh/0061.wav",
-      "duration": 1.48,
-      "start_time": 22.49798711459779,
-      "speaker_id": "16"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/16/cough/0044.wav",
-      "duration": 1.4035788418451656,
-      "start_time": 20.403782436044438,
-      "speaker_id": "16"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002330.json b/conversations/conv_002330.json
deleted file mode 100644
index 05e9200287b6b4e1db3ec54dcfa524339ec4a43c..0000000000000000000000000000000000000000
--- a/conversations/conv_002330.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.157056021377915,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.767352642908631,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "14-212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-212.flac |",
-      "real_speaker_id": "14",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.510216866664353,
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-      "utterance_id": "6818-76332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.379686892502956,
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-      "utterance_id": "7478-98645",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98645.flac |",
-      "real_speaker_id": "7478",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.351169824142367,
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-      "utterance_id": "14-208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-208.flac |",
-      "real_speaker_id": "14",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.724412365620214,
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-      "overlap": false,
-      "utterance_id": "7478-98644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98644.flac |",
-      "real_speaker_id": "7478",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.42886547386936,
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-      "duration": 1.7281905475085537,
-      "start_frame": 470861,
-      "duration_frames": 27651,
-      "overlap": true,
-      "utterance_id": "6818-68772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7478/laugh/0097.wav",
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-      "start_time": 26.2866817580995,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6818/cough/0005.wav",
-      "duration": 0.7124650928534861,
-      "start_time": 29.993653676336493,
-      "speaker_id": "6818"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002337.json b/conversations/conv_002337.json
deleted file mode 100644
index 8a1fce53ccafc5ceb669dd28c97dd783839ee679..0000000000000000000000000000000000000000
--- a/conversations/conv_002337.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.9626640667627555,
-      "duration": 6.9626640667627555,
-      "start_frame": 0,
-      "duration_frames": 111402,
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-      "utterance_id": "1572-141718",
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-      "real_speaker_id": "82",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 111402
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.77028944651677,
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-      "overlap": false,
-      "utterance_id": "82-122859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.061045811661113,
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-      "duration": 1.9389541883388866,
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-      "utterance_id": "774-127930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 86950
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.36,
-      "start_time": 29.12114335558929,
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-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 28.96012930134633,
-      "speaker_id": "82"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_002340.json b/conversations/conv_002340.json
deleted file mode 100644
index 8d0d2ecb3875bc8140eb5cdb1a47f54876a4f477..0000000000000000000000000000000000000000
--- a/conversations/conv_002340.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.852232336476323,
-      "duration": 5.852232336476323,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4051-11217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11217.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.41429169591675,
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-      "duration": 4.3628047150208795,
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-      "duration_frames": 69804,
-      "overlap": true,
-      "utterance_id": "4051-11217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11217.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 93635
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155524.flac |",
-      "real_speaker_id": "2488",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-10927.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2488-155526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155526.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002356.json b/conversations/conv_002356.json
deleted file mode 100644
index 7128b1fd2e0b87b4f40bbcd727cc4822f7b8a834..0000000000000000000000000000000000000000
--- a/conversations/conv_002356.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
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-      "utterance_id": "4898-28461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-28461.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
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-      "real_speaker_id": "7585",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4358-44937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-44937.flac |",
-      "real_speaker_id": "4358",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.7230789377096727,
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-      "utterance_id": "4898-28461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-28461.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 93813
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7585/laugh/0079.wav",
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-      "speaker_id": "7585"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002360.json b/conversations/conv_002360.json
deleted file mode 100644
index 28c62adc32a6a4cf00a5adeb795c799f08915fab..0000000000000000000000000000000000000000
--- a/conversations/conv_002360.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
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-    {
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-    {
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-    {
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/937/cough/0045.wav",
-      "duration": 1.3718271786723135,
-      "start_time": 18.201755724841732,
-      "speaker_id": "937"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7502/laugh/0023.wav",
-      "duration": 0.5620076823629865,
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-      "speaker_id": "7502"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7502/laugh/0006.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "7502"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002367.json b/conversations/conv_002367.json
deleted file mode 100644
index 559b268d022ebbc9acfadd1ee8f6e6d7532d7bed..0000000000000000000000000000000000000000
--- a/conversations/conv_002367.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.342305945874614,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.536468271717947,
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-      "overlap": false,
-      "utterance_id": "1027-125140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.698180462414011,
-      "end_time": 9.169363504670486,
-      "duration": 3.471183042256474,
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-      "utterance_id": "317-130248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130248.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.039522207032594,
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-      "duration": 5.992532774918566,
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-      "utterance_id": "317-127219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-127219.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.624169872464513,
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-      "utterance_id": "3054-128242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.6396542887893,
-      "end_time": 25.85050056368189,
-      "duration": 4.210846274892591,
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-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.262620073168918,
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-      "duration": 5.079685872705696,
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-      "utterance_id": "3054-128244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-      "event_class": "laugh",
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-      "duration": 0.9089517058231177,
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-      "speaker_id": "3054"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002371.json b/conversations/conv_002371.json
deleted file mode 100644
index 764e388f07cc179c6e9960a7fb38161d2d81c0f2..0000000000000000000000000000000000000000
--- a/conversations/conv_002371.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.92369468107266,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-78885.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
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-      "utterance_id": "6188-73024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-73024.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.157008782656504,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.13737378572318,
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-      "duration_frames": 88090,
-      "overlap": false,
-      "utterance_id": "6184-61313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-61313.flac |",
-      "real_speaker_id": "6184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8193-116804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 67130
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "laugh",
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-      "speaker_id": "6188"
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-    {
-      "event_class": "cough",
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-      "start_time": 24.3691771108332,
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\ No newline at end of file
diff --git a/conversations/conv_002376.json b/conversations/conv_002376.json
deleted file mode 100644
index 9139f84721349f5a43f38822a55bdb92b594c972..0000000000000000000000000000000000000000
--- a/conversations/conv_002376.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.38142756708546,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "202-129387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-129387.flac |",
-      "real_speaker_id": "202",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-122857.flac |",
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-      "utterance_id": "8180-274724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274724.flac |",
-      "real_speaker_id": "8180",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-129387.flac |",
-      "real_speaker_id": "202",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "5361-27492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5361-27492.flac |",
-      "real_speaker_id": "5361",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 28.106172348769768,
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-      "utterance_id": "202-130622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_002383.json b/conversations/conv_002383.json
deleted file mode 100644
index 5152cf9569e37b29d3bf781be1370e76057d85d4..0000000000000000000000000000000000000000
--- a/conversations/conv_002383.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2895",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
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-      "event_class": "Running_water",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_0.wav",
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-      "start_time": 18.243351157375496
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2895/laugh/0082.wav",
-      "duration": 0.8605756854951538,
-      "start_time": 5.067327538535892,
-      "speaker_id": "2895"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/986/laugh/0039.wav",
-      "duration": 1.4860737767059178,
-      "start_time": 30.51392622329408,
-      "speaker_id": "986"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002388.json b/conversations/conv_002388.json
deleted file mode 100644
index fc46364fdd00c1e7eed9b373838a5425c2c95a25..0000000000000000000000000000000000000000
--- a/conversations/conv_002388.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.0951208611416385,
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-      "start_frame": 0,
-      "duration_frames": 81521,
-      "overlap": false,
-      "utterance_id": "2136-5147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5147.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.32336571940009,
-      "end_time": 11.301519054071171,
-      "duration": 5.978153334671083,
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-      "duration_frames": 95650,
-      "overlap": false,
-      "utterance_id": "4519-6171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.831897249799233,
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-      "duration": 5.235734418899978,
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-      "utterance_id": "2136-5147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5147.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 81521
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.28540374528551,
-      "end_time": 22.305789306188963,
-      "duration": 5.0203855609034544,
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-      "utterance_id": "6035-58142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-58142.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.67447219868965,
-      "end_time": 29.567322797303724,
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-      "start_frame": 362791,
-      "duration_frames": 110285,
-      "overlap": false,
-      "utterance_id": "4519-6171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 95650
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.093995927733367,
-      "end_time": 32.0,
-      "duration": 1.906004072266633,
-      "start_frame": 481503,
-      "duration_frames": 30496,
-      "overlap": false,
-      "utterance_id": "2136-5140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5140.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.9447845804988662,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2136/laugh/0010.wav",
-      "duration": 1.2,
-      "start_time": 3.1249533299508974,
-      "speaker_id": "2136"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2136/cough/0016.wav",
-      "duration": 0.8758968072850888,
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-      "speaker_id": "2136"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2136/laugh/0070.wav",
-      "duration": 1.46,
-      "start_time": 30.54,
-      "speaker_id": "2136"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002395.json b/conversations/conv_002395.json
deleted file mode 100644
index f1c2ea718bf77fc0a126c6aaf355d655ab693a3e..0000000000000000000000000000000000000000
--- a/conversations/conv_002395.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1851-148962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.288927961492103,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.948408027154226,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.689319885709278,
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-      "overlap": false,
-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 98583
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.45704984313798,
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-      "overlap": false,
-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 183925
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.450248009837654,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "1851-148312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148312.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1851/laugh/0093.wav",
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-      "speaker_id": "1851"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002399.json b/conversations/conv_002399.json
deleted file mode 100644
index d925e25e94afd50f80b30a78fd62360f493db83b..0000000000000000000000000000000000000000
--- a/conversations/conv_002399.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.77601003530736,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
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-      "utterance_id": "8605-276939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-276939.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.351140190970029,
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-      "utterance_id": "1469-168608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-168608.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.463300063388857,
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-      "duration_frames": 111751,
-      "overlap": false,
-      "utterance_id": "7073-114963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
-      "real_speaker_id": "7073",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "1469-163403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-163403.flac |",
-      "real_speaker_id": "1469",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
-      "real_speaker_id": "7073",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_002403.json b/conversations/conv_002403.json
deleted file mode 100644
index 97c3ec66ae148ffeea5a8e07ad46b32df4a3aace..0000000000000000000000000000000000000000
--- a/conversations/conv_002403.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.698812016310878,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "8346-244446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244446.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1447-130550",
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-      "real_speaker_id": "1447",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0004",
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-      "speaker_id": "8346"
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-    {
-      "event_class": "cough",
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-      "duration": 0.3430939661081825,
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-      "speaker_id": "1447"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "8346"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002408.json b/conversations/conv_002408.json
deleted file mode 100644
index b7247972863cbc192c5851b85fd7f032a1855c49..0000000000000000000000000000000000000000
--- a/conversations/conv_002408.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.986875142052807,
-      "duration": 6.986875142052807,
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-      "overlap": false,
-      "utterance_id": "4741-27757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4741-27757.flac |",
-      "real_speaker_id": "4741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.59856251992915,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 84602,
-      "overlap": false,
-      "utterance_id": "4741-27757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4741-27757.flac |",
-      "real_speaker_id": "4741",
-      "position_frames": 111790
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.454097793982623,
-      "end_time": 23.71071650052947,
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-      "duration_frames": 84105,
-      "overlap": false,
-      "utterance_id": "6567-53342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
-      "position_frames": 73054
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.57042364704117,
-      "end_time": 28.82915301442877,
-      "duration": 4.258729367387598,
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-      "utterance_id": "4741-27757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4741-27757.flac |",
-      "real_speaker_id": "4741",
-      "position_frames": 196392
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.00249838840707,
-      "end_time": 32.0,
-      "duration": 2.9975016115929307,
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-      "duration_frames": 47960,
-      "overlap": false,
-      "utterance_id": "4741-27757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4741-27757.flac |",
-      "real_speaker_id": "4741",
-      "position_frames": 264531
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-      "duration": 0.9988322004098953,
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-      "speaker_id": "4741"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4741/laugh/0054.wav",
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-      "speaker_id": "4741"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002415.json b/conversations/conv_002415.json
deleted file mode 100644
index 4189b744c1f3c82a01e5cb425440475de53684d3..0000000000000000000000000000000000000000
--- a/conversations/conv_002415.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2334-150915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150915.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "4660-25054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25054.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1926-143879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-143879.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.52858773485292,
-      "end_time": 24.921472559484634,
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-      "start_frame": 328457,
-      "duration_frames": 70286,
-      "overlap": true,
-      "utterance_id": "1926-147987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.706524335797774,
-      "end_time": 32.0,
-      "duration": 5.2934756642022265,
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-      "overlap": false,
-      "utterance_id": "2334-150915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150915.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 100587
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1926/laugh/0055.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1926/cough/0130.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002419.json b/conversations/conv_002419.json
deleted file mode 100644
index a57c23312ee524c2da5fad0b15daa7ffd4a53476..0000000000000000000000000000000000000000
--- a/conversations/conv_002419.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1421-8539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8539.flac |",
-      "real_speaker_id": "1421",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135022.flac |",
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-      "utterance_id": "1313-135020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135020.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-136054.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "1421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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\ No newline at end of file
diff --git a/conversations/conv_002423.json b/conversations/conv_002423.json
deleted file mode 100644
index 2512e6fb8aef59a55101d422d8169144015ecfa8..0000000000000000000000000000000000000000
--- a/conversations/conv_002423.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7762-280917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.499111573026771,
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-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141717.flac |",
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "7762"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6196/cough/0023.wav",
-      "duration": 0.311623268536158,
-      "start_time": 6.067708758954165,
-      "speaker_id": "6196"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002435.json b/conversations/conv_002435.json
deleted file mode 100644
index 3ce9316d90d22b66ea55d092e688dc0d87d0b60c..0000000000000000000000000000000000000000
--- a/conversations/conv_002435.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.056162002564724,
-      "duration": 4.056162002564724,
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-      "duration_frames": 64898,
-      "overlap": false,
-      "utterance_id": "5809-58763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-58763.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.974981654547778,
-      "end_time": 9.787471431774243,
-      "duration": 4.812489777226466,
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-      "duration_frames": 76999,
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-      "utterance_id": "5977-46900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.968959984888965,
-      "end_time": 16.2745758992214,
-      "duration": 6.305615914332434,
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-      "duration_frames": 100889,
-      "overlap": false,
-      "utterance_id": "5809-58763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-58763.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 64898
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.81504341113895,
-      "end_time": 21.775331232624197,
-      "duration": 5.960287821485249,
-      "start_frame": 253040,
-      "duration_frames": 95364,
-      "overlap": true,
-      "utterance_id": "3318-164981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164981.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.89020152807616,
-      "end_time": 27.089086102470656,
-      "duration": 4.198884574394494,
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-      "overlap": true,
-      "utterance_id": "5809-51162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51162.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.98842602167703,
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-      "duration": 4.011573978322971,
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-      "utterance_id": "3318-185499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-185499.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5809/laugh/0031.wav",
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-      "speaker_id": "5809"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002439.json b/conversations/conv_002439.json
deleted file mode 100644
index 71e7e64d51a019fc98b00817882c672ecd214172..0000000000000000000000000000000000000000
--- a/conversations/conv_002439.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.151723333660851,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 102177
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 85955
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.929868221994308,
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-      "overlap": false,
-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 198944
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.29479438915773,
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-      "overlap": false,
-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 173619
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3911/laugh/0053.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/60/laugh/0083.wav",
-      "duration": 1.2763253016111515,
-      "start_time": 30.723674698388848,
-      "speaker_id": "60"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002442.json b/conversations/conv_002442.json
deleted file mode 100644
index 08f4fd36a91bcda90f769dcdc9c7fff2d7abafc9..0000000000000000000000000000000000000000
--- a/conversations/conv_002442.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2159-179157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179157.flac |",
-      "real_speaker_id": "2159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.34731223569443,
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-      "overlap": false,
-      "utterance_id": "2999-156968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2999-156968.flac |",
-      "real_speaker_id": "2999",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2159-179154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179154.flac |",
-      "real_speaker_id": "2159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "8123-275209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275209.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8123-275193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275193.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2999-156967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2999-156967.flac |",
-      "real_speaker_id": "2999",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.09010787270109,
-      "end_time": 32.0,
-      "duration": 0.9098921272989102,
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-      "overlap": false,
-      "utterance_id": "8123-275209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275209.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 63775
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "start_time": 5.30490547853157,
-      "speaker_id": "2159"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2999/cough/0113.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8123/laugh/0100.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002449.json b/conversations/conv_002449.json
deleted file mode 100644
index 67992cb88bce6ca441e4bad0001726daa2ff3c4a..0000000000000000000000000000000000000000
--- a/conversations/conv_002449.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "end_time": 6.888846183974739,
-      "duration": 6.888846183974739,
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-      "utterance_id": "5093-48377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-48377.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "4583-16044",
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-      "real_speaker_id": "4583",
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-    {
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-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
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-    {
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-    {
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-      "duration": 1.2,
-      "start_time": 23.03621855695351,
-      "speaker_id": "5093"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4583/laugh/0040.wav",
-      "duration": 0.7257611463798189,
-      "start_time": 31.27423885362018,
-      "speaker_id": "4583"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002454.json b/conversations/conv_002454.json
deleted file mode 100644
index 32cfde49b2026c1726a0c25f5ac697f27975dcb3..0000000000000000000000000000000000000000
--- a/conversations/conv_002454.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3650-168643",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168643.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.855717699815842,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6512-67886.flac |",
-      "real_speaker_id": "6512",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.434437781374388,
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-      "overlap": false,
-      "utterance_id": "3650-168646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168646.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.279786051278307,
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-      "duration": 4.555852650329363,
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-      "overlap": false,
-      "utterance_id": "6512-72577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6512-72577.flac |",
-      "real_speaker_id": "6512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.10833949354085,
-      "end_time": 26.251370545756554,
-      "duration": 5.143031052215704,
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-      "duration_frames": 82288,
-      "overlap": false,
-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.404340203849873,
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-      "duration": 4.595659796150127,
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-      "utterance_id": "3650-168636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168636.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3650/laugh/0106.wav",
-      "duration": 1.4502807641354079,
-      "start_time": 28.85028921610497,
-      "speaker_id": "3650"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002458.json b/conversations/conv_002458.json
deleted file mode 100644
index 356f8fec7c21c9817cca3fd4ea02d3770e7ab1e9..0000000000000000000000000000000000000000
--- a/conversations/conv_002458.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.843143184176592,
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-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60801.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 77490
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.76004155455096,
-      "end_time": 27.511136317669077,
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-      "duration_frames": 108017,
-      "overlap": false,
-      "utterance_id": "1482-140071",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140071.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.012027668761263,
-      "end_time": 32.0,
-      "duration": 3.987972331238737,
-      "start_frame": 448192,
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-      "overlap": false,
-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 162279
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "event_class": "Frying",
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-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 13.174163107877503,
-      "speaker_id": "1721"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002462.json b/conversations/conv_002462.json
deleted file mode 100644
index d4160625d9c70732378211205103db7673793bf8..0000000000000000000000000000000000000000
--- a/conversations/conv_002462.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-284029.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124146.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_002463.json b/conversations/conv_002463.json
deleted file mode 100644
index 2003c31d87989246f329b84e13a97f76d17fa0a2..0000000000000000000000000000000000000000
--- a/conversations/conv_002463.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.574650488667267,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "374-180298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180298.flac |",
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/374/cough/0070.wav",
-      "duration": 0.8250787497734207,
-      "start_time": 27.033501780567487,
-      "speaker_id": "374"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002474.json b/conversations/conv_002474.json
deleted file mode 100644
index ecdf991a1d2c5cf3f83b4954b416ac83a3ae6128..0000000000000000000000000000000000000000
--- a/conversations/conv_002474.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.29285454929286,
-      "duration": 4.29285454929286,
-      "start_frame": 0,
-      "duration_frames": 68685,
-      "overlap": false,
-      "utterance_id": "4039-184266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.961249433512174,
-      "end_time": 9.440947893843317,
-      "duration": 4.479698460331143,
-      "start_frame": 79379,
-      "duration_frames": 71675,
-      "overlap": false,
-      "utterance_id": "2397-162238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162238.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.506771508372104,
-      "end_time": 12.584185544857863,
-      "duration": 3.0774140364857594,
-      "start_frame": 152108,
-      "duration_frames": 49238,
-      "overlap": true,
-      "utterance_id": "4039-184265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184265.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.614086998882986,
-      "end_time": 19.326077805429676,
-      "duration": 4.711990806546693,
-      "start_frame": 233825,
-      "duration_frames": 75391,
-      "overlap": false,
-      "utterance_id": "2397-162238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162238.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 71675
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.869032258254176,
-      "end_time": 26.0307942198353,
-      "duration": 6.161761961581123,
-      "start_frame": 317904,
-      "duration_frames": 98588,
-      "overlap": false,
-      "utterance_id": "1544-41167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-41167.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.792462728170463,
-      "end_time": 32.0,
-      "duration": 5.207537271829537,
-      "start_frame": 428679,
-      "duration_frames": 83320,
-      "overlap": false,
-      "utterance_id": "4039-184266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 68685
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
-      "duration": 1.1875523505575956,
-      "start_time": 1.5423313694300989
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
-      "duration": 0.5431292517006803,
-      "start_time": 14.754676644141334
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2397/laugh/0116.wav",
-      "duration": 0.680308498149963,
-      "start_time": 4.146180436421662,
-      "speaker_id": "2397"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4039/cough/0102.wav",
-      "duration": 0.6556020781516883,
-      "start_time": 12.734465943374987,
-      "speaker_id": "4039"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1544/laugh/0114.wav",
-      "duration": 0.6456324405995623,
-      "start_time": 22.041177657853822,
-      "speaker_id": "1544"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002478.json b/conversations/conv_002478.json
deleted file mode 100644
index 57ca6489995a70d2d499971042bb91927255c5c9..0000000000000000000000000000000000000000
--- a/conversations/conv_002478.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.448544239182006,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.758842344930001,
-      "duration": 4.758842344930001,
-      "start_frame": 0,
-      "duration_frames": 76141,
-      "overlap": false,
-      "utterance_id": "5154-26559",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26559.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.926543006541845,
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-      "utterance_id": "568-126452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-126452.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.646402221216238,
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-      "duration": 4.19956904884668,
-      "start_frame": 154342,
-      "duration_frames": 67193,
-      "overlap": false,
-      "utterance_id": "8808-283205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-283205.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.666007514969117,
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-      "duration": 5.056838873964758,
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-      "duration_frames": 80909,
-      "overlap": false,
-      "utterance_id": "568-126452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-126452.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 68744
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.904291689492908,
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-      "duration": 5.214600141242909,
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-      "overlap": false,
-      "utterance_id": "8808-283205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-283205.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 67193
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.443739258374848,
-      "end_time": 29.27374291597514,
-      "duration": 3.8300036576002956,
-      "start_frame": 407099,
-      "duration_frames": 61280,
-      "overlap": false,
-      "utterance_id": "568-126446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-126446.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.375541764536877,
-      "end_time": 31.448544239182006,
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-      "overlap": true,
-      "utterance_id": "5154-26559",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26559.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 76141
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5154/laugh/0059.wav",
-      "duration": 1.24,
-      "start_time": 1.5076801074357566,
-      "speaker_id": "5154"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8808/laugh/0100.wav",
-      "duration": 1.44,
-      "start_time": 18.354736661847642,
-      "speaker_id": "8808"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002481.json b/conversations/conv_002481.json
deleted file mode 100644
index 1d6ce28167760c43a82e36555034cbee72cc78b4..0000000000000000000000000000000000000000
--- a/conversations/conv_002481.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.702798018948442,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.562516399635283,
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-      "overlap": false,
-      "utterance_id": "3411-187012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3411-187012.flac |",
-      "real_speaker_id": "3411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.35677885707626,
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-      "duration_frames": 87128,
-      "overlap": false,
-      "utterance_id": "3411-187007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3411-187007.flac |",
-      "real_speaker_id": "3411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.63480198683802,
-      "end_time": 17.303332665459997,
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-      "duration_frames": 90696,
-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.63485822228001,
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-      "start_frame": 298157,
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-      "utterance_id": "3411-187012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3411-187012.flac |",
-      "real_speaker_id": "3411",
-      "position_frames": 73000
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.537023067078458,
-      "end_time": 31.702798018948442,
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-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 90696
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "start_time": 4.118524088541066,
-      "speaker_id": "3411"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002497.json b/conversations/conv_002497.json
deleted file mode 100644
index 18142a0b04b283d88429423ee9776f4884ae4302..0000000000000000000000000000000000000000
--- a/conversations/conv_002497.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.146956234010476,
-      "duration": 6.146956234010476,
-      "start_frame": 0,
-      "duration_frames": 98351,
-      "overlap": false,
-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.401631764413442,
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-      "duration": 6.911682404676647,
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-      "duration_frames": 110586,
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-      "utterance_id": "7242-275146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275146.flac |",
-      "real_speaker_id": "7242",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7242-275160",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
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-  "foreground_events": [
-    {
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5049/cough/0044.wav",
-      "duration": 0.88,
-      "start_time": 25.57770817338375,
-      "speaker_id": "5049"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1502/cough/0049.wav",
-      "duration": 1.350298193929097,
-      "start_time": 29.989365305252928,
-      "speaker_id": "1502"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002507.json b/conversations/conv_002507.json
deleted file mode 100644
index 2eae7a860e59e2bcc2ee0f7050b8452be8b5636f..0000000000000000000000000000000000000000
--- a/conversations/conv_002507.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.593381496871764,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.261632685696094,
-      "duration": 6.261632685696094,
-      "start_frame": 0,
-      "duration_frames": 100186,
-      "overlap": false,
-      "utterance_id": "2691-156755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156755.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.182370960236586,
-      "end_time": 13.695878426216243,
-      "duration": 6.513507465979658,
-      "start_frame": 114917,
-      "duration_frames": 104216,
-      "overlap": false,
-      "utterance_id": "4926-23311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23311.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.999533404169611,
-      "end_time": 20.026409640448545,
-      "duration": 6.026876236278934,
-      "start_frame": 223992,
-      "duration_frames": 96430,
-      "overlap": false,
-      "utterance_id": "7085-2327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-2327.flac |",
-      "real_speaker_id": "7085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.404201982855092,
-      "end_time": 24.332810633304994,
-      "duration": 3.9286086504499007,
-      "start_frame": 326467,
-      "duration_frames": 62857,
-      "overlap": false,
-      "utterance_id": "4926-23311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23311.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 104216
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.027093708162443,
-      "end_time": 31.593381496871764,
-      "duration": 6.566287788709322,
-      "start_frame": 400433,
-      "duration_frames": 105060,
-      "overlap": false,
-      "utterance_id": "7085-75810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-75810.flac |",
-      "real_speaker_id": "7085",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 19.1692161313091,
-      "start_time": 11.314979416599813
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
-      "duration": 3.5619559511910324,
-      "start_time": 4.689843397392699
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
-      "start_time": 3.128127211440173
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4926/laugh/0082.wav",
-      "duration": 0.6377433184279846,
-      "start_time": 13.958148437691204,
-      "speaker_id": "4926"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7085/cough/0051.wav",
-      "duration": 0.72585735086523,
-      "start_time": 31.27414264913477,
-      "speaker_id": "7085"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002511.json b/conversations/conv_002511.json
deleted file mode 100644
index 6e47b8e29b5c1a88bf74457d9ee2e1c92e3363b7..0000000000000000000000000000000000000000
--- a/conversations/conv_002511.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.034591225291601,
-      "duration": 6.034591225291601,
-      "start_frame": 0,
-      "duration_frames": 96553,
-      "overlap": false,
-      "utterance_id": "4406-16883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16883.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.244622186300203,
-      "end_time": 11.45486520917752,
-      "duration": 4.210243022877316,
-      "start_frame": 115913,
-      "duration_frames": 67363,
-      "overlap": false,
-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.685048256421176,
-      "end_time": 17.797287537103156,
-      "duration": 6.1122392806819805,
-      "start_frame": 186960,
-      "duration_frames": 97795,
-      "overlap": false,
-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.347322956136825,
-      "end_time": 25.029634851367796,
-      "duration": 6.6823118952309715,
-      "start_frame": 293557,
-      "duration_frames": 106916,
-      "overlap": true,
-      "utterance_id": "6248-298838",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-298838.flac |",
-      "real_speaker_id": "6248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.22402447741524,
-      "end_time": 32.0,
-      "duration": 5.775975522584758,
-      "start_frame": 419584,
-      "duration_frames": 92415,
-      "overlap": false,
-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 97795
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
-      "duration": 12.759365079365079,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.1950491176425246,
-      "start_time": 10.530222171301011
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
-      "duration": 4.054542675449913,
-      "start_time": 14.817792728228817
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/728/cough/0050.wav",
-      "duration": 0.5599609836869153,
-      "start_time": 11.481438442719092,
-      "speaker_id": "728"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4406/cough/0072.wav",
-      "duration": 1.34,
-      "start_time": 17.966184776428697,
-      "speaker_id": "4406"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4406/laugh/0050.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "4406"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002526.json b/conversations/conv_002526.json
deleted file mode 100644
index d257b1285a11d6240c240e4b825c3eaa71052f01..0000000000000000000000000000000000000000
--- a/conversations/conv_002526.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.72324808139027,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.067426503965782,
-      "duration": 6.067426503965782,
-      "start_frame": 0,
-      "duration_frames": 97078,
-      "overlap": false,
-      "utterance_id": "9023-296468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.6822601915232696,
-      "end_time": 12.043048702819377,
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-      "overlap": false,
-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.960468436040646,
-      "end_time": 18.146421261643965,
-      "duration": 5.1859528256033185,
-      "start_frame": 207367,
-      "duration_frames": 82975,
-      "overlap": false,
-      "utterance_id": "1058-133263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-133263.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.433330585614538,
-      "end_time": 23.65239977211542,
-      "duration": 5.219069186500881,
-      "start_frame": 294933,
-      "duration_frames": 83505,
-      "overlap": false,
-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 85772
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.357636628526897,
-      "end_time": 28.111080482078346,
-      "duration": 3.75344385355145,
-      "start_frame": 389722,
-      "duration_frames": 60055,
-      "overlap": false,
-      "utterance_id": "9023-296468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 97078
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.37811747752712,
-      "end_time": 31.72324808139027,
-      "duration": 3.3451306038631508,
-      "start_frame": 454049,
-      "duration_frames": 53522,
-      "overlap": true,
-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 169277
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-      "start_time": 6.990189631678057
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/9023/laugh/0107.wav",
-      "duration": 0.9411728393940393,
-      "start_time": 0,
-      "speaker_id": "9023"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2401/cough/0013.wav",
-      "duration": 1.3822885986913498,
-      "start_time": 5.289448691056827,
-      "speaker_id": "2401"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002527.json b/conversations/conv_002527.json
deleted file mode 100644
index d76f3765839851c8fe5ecc23137e8e4ee2f7a110..0000000000000000000000000000000000000000
--- a/conversations/conv_002527.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.529577649079175,
-      "duration": 6.529577649079175,
-      "start_frame": 0,
-      "duration_frames": 104473,
-      "overlap": false,
-      "utterance_id": "3479-153281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153281.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.128549680229832,
-      "end_time": 11.759835231588681,
-      "duration": 4.63128555135885,
-      "start_frame": 114056,
-      "duration_frames": 74100,
-      "overlap": false,
-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.048100443956873,
-      "end_time": 18.589016398957867,
-      "duration": 6.540915955000995,
-      "start_frame": 192769,
-      "duration_frames": 104654,
-      "overlap": false,
-      "utterance_id": "1403-138552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.94378158104706,
-      "end_time": 25.184081455075194,
-      "duration": 6.240299874028135,
-      "start_frame": 303100,
-      "duration_frames": 99844,
-      "overlap": false,
-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 74100
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.766258946388973,
-      "end_time": 30.237699339255187,
-      "duration": 4.471440392866212,
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-      "duration_frames": 71543,
-      "overlap": false,
-      "utterance_id": "1403-135907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-135907.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.64855934581025,
-      "end_time": 32.0,
-      "duration": 0.35144065418975146,
-      "start_frame": 506376,
-      "duration_frames": 5623,
-      "overlap": false,
-      "utterance_id": "3479-153280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153280.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
-      "duration": 4.886432978235973,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8527/laugh/0030.wav",
-      "duration": 1.0,
-      "start_time": 7.577751249655393,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1403/laugh/0053.wav",
-      "duration": 1.12,
-      "start_time": 24.38463910188295,
-      "speaker_id": "1403"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002531.json b/conversations/conv_002531.json
deleted file mode 100644
index 698337eea6f01fc0c6e676ca5bea4f254883c230..0000000000000000000000000000000000000000
--- a/conversations/conv_002531.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_002536.json b/conversations/conv_002536.json
deleted file mode 100644
index a48b509151ac377d494157fa990fc7dbe6e36f63..0000000000000000000000000000000000000000
--- a/conversations/conv_002536.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.984708659047385,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294554.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 0
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-      "utterance_id": "8725-294554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294554.flac |",
-      "real_speaker_id": "8725",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127539.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 82133
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_002546.json b/conversations/conv_002546.json
deleted file mode 100644
index 3108a63f322f2b068730de1a159b27534ab94a4e..0000000000000000000000000000000000000000
--- a/conversations/conv_002546.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "real_speaker_id": "1107",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
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-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002550.json b/conversations/conv_002550.json
deleted file mode 100644
index 5bc3703158d5d578206fe970f771fb1ebb18e6e8..0000000000000000000000000000000000000000
--- a/conversations/conv_002550.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.146491102672464,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "4959-28865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3638-696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
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-    {
-      "segment_id": "seg0003",
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-      "duration": 0.507840724763263,
-      "start_time": 12.341329843938002,
-      "speaker_id": "3638"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3638/laugh/0071.wav",
-      "duration": 0.6321463861053932,
-      "start_time": 29.47922418580021,
-      "speaker_id": "3638"
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-      "event_class": "cough",
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-      "speaker_id": "3638"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_002566.json b/conversations/conv_002566.json
deleted file mode 100644
index ac8abc7cca4746ccfe1c281994228f17dfe7f8d2..0000000000000000000000000000000000000000
--- a/conversations/conv_002566.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4196-23955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23955.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.6232525997001694,
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-      "utterance_id": "3698-256231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-256231.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 7.953759714494961,
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-      "duration_frames": 48477,
-      "overlap": false,
-      "utterance_id": "2673-162130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-162130.flac |",
-      "real_speaker_id": "2673",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 11.15403484193658,
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-      "duration": 4.545750989506045,
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-      "utterance_id": "4196-23955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23955.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 52987
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 16.445982691537026,
-      "end_time": 21.54807373361928,
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-      "utterance_id": "3698-29401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-29401.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 22.36128345217176,
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-      "utterance_id": "3698-41990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-41990.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.77540530985658,
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-      "utterance_id": "4196-23901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23901.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 9.963014507849138,
-      "speaker_id": "4196"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002570.json b/conversations/conv_002570.json
deleted file mode 100644
index 187ee95e3aa52333a960028b0fdf230589da9902..0000000000000000000000000000000000000000
--- a/conversations/conv_002570.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-33409.flac |",
-      "real_speaker_id": "5132",
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-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 58006
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.745742487904245,
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-      "overlap": false,
-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.035518983065902,
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-      "overlap": true,
-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 127997
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.82048213209219,
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-      "utterance_id": "5132-28304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-28304.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_002585.json b/conversations/conv_002585.json
deleted file mode 100644
index 8ff9f2bd27bfa9a3fbc34a3776b932822c3312bc..0000000000000000000000000000000000000000
--- a/conversations/conv_002585.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "984-137141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137141.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137154.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "7800-283493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283493.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-66016.flac |",
-      "real_speaker_id": "6330",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.65627009314122,
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-      "overlap": false,
-      "utterance_id": "7800-283492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283492.flac |",
-      "real_speaker_id": "7800",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.368892005780605,
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-      "duration": 5.631107994219395,
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-      "utterance_id": "984-137141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137141.flac |",
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-      "position_frames": 64780
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-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_002589.json b/conversations/conv_002589.json
deleted file mode 100644
index 24d446d05293caa9da4cf3913caa2c2dbae88b80..0000000000000000000000000000000000000000
--- a/conversations/conv_002589.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3717-178149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-178149.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "5661-32891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32891.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "4397-15666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15666.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5661",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.178939924431173,
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-      "duration": 0.8210600755688269,
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-      "utterance_id": "3717-21498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21498.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_10.wav",
-      "duration": 0.3551020408163265,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3717/laugh/0085.wav",
-      "duration": 0.9392721440353378,
-      "start_time": 0,
-      "speaker_id": "3717"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4397/cough/0093.wav",
-      "duration": 0.8836341514288342,
-      "start_time": 26.4708318292787,
-      "speaker_id": "4397"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3717/laugh/0056.wav",
-      "duration": 0.5085351409469091,
-      "start_time": 30.564493298158723,
-      "speaker_id": "3717"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002593.json b/conversations/conv_002593.json
deleted file mode 100644
index f76f93ef1976b13d1157023025a7bb150cd62996..0000000000000000000000000000000000000000
--- a/conversations/conv_002593.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.982922554500142,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.480888654322724,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.204005410143254,
-      "end_time": 12.212951712970785,
-      "duration": 6.008946302827531,
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-      "duration_frames": 96143,
-      "overlap": true,
-      "utterance_id": "3072-155948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155948.flac |",
-      "real_speaker_id": "3072",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.981540264856406,
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-      "duration": 4.270515158994652,
-      "start_frame": 207704,
-      "duration_frames": 68328,
-      "overlap": false,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 87694
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.67925651652222,
-      "end_time": 21.466914894466747,
-      "duration": 3.787658377944527,
-      "start_frame": 282868,
-      "duration_frames": 60602,
-      "overlap": false,
-      "utterance_id": "3072-155949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155949.flac |",
-      "real_speaker_id": "3072",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.651964393457916,
-      "end_time": 27.46338869101458,
-      "duration": 5.811424297556664,
-      "start_frame": 346431,
-      "duration_frames": 92982,
-      "overlap": true,
-      "utterance_id": "149-125750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125750.flac |",
-      "real_speaker_id": "149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.0647032470337,
-      "end_time": 31.982922554500142,
-      "duration": 3.9182193074664395,
-      "start_frame": 449035,
-      "duration_frames": 62691,
-      "overlap": false,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 156022
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 8.35928158791849
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 5.537503097774801,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5005/laugh/0062.wav",
-      "duration": 1.497289858591853,
-      "start_time": 14.64838889652163,
-      "speaker_id": "5005"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3072/cough/0017.wav",
-      "duration": 0.92,
-      "start_time": 18.903918811255778,
-      "speaker_id": "3072"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002602.json b/conversations/conv_002602.json
deleted file mode 100644
index e8b2d4b872586ba0b36a8118c3eedd146680e339..0000000000000000000000000000000000000000
--- a/conversations/conv_002602.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7569-102240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102240.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.253427506757462,
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-      "overlap": false,
-      "utterance_id": "954-130627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/954-130627.flac |",
-      "real_speaker_id": "954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.206353115633163,
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-      "overlap": false,
-      "utterance_id": "7569-102232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.28848551864982,
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-      "duration": 4.486142004331425,
-      "start_frame": 260615,
-      "duration_frames": 71778,
-      "overlap": false,
-      "utterance_id": "954-130627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/954-130627.flac |",
-      "real_speaker_id": "954",
-      "position_frames": 55966
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.612330822889472,
-      "end_time": 27.008756842157887,
-      "duration": 5.396426019268413,
-      "start_frame": 345797,
-      "duration_frames": 86342,
-      "overlap": false,
-      "utterance_id": "954-130627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/954-130627.flac |",
-      "real_speaker_id": "954",
-      "position_frames": 127744
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.18562991013425,
-      "end_time": 32.0,
-      "duration": 3.8143700898657507,
-      "start_frame": 450970,
-      "duration_frames": 61029,
-      "overlap": false,
-      "utterance_id": "1553-140048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140048.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_9.wav",
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-      "start_time": 2.9956973733495715
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7569/laugh/0114.wav",
-      "duration": 1.36,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/954/cough/0046.wav",
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-      "speaker_id": "954"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002603.json b/conversations/conv_002603.json
deleted file mode 100644
index 3814c0d0ebd7fcfd9b2e00fe596ab0164a5c14ce..0000000000000000000000000000000000000000
--- a/conversations/conv_002603.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.385930775381098,
-      "duration": 4.385930775381098,
-      "start_frame": 0,
-      "duration_frames": 70174,
-      "overlap": false,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.793371162683857,
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-      "overlap": false,
-      "utterance_id": "5248-34499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34499.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.37647425550276,
-      "end_time": 17.975302324154054,
-      "duration": 5.598828068651294,
-      "start_frame": 198023,
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-      "overlap": false,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 70174
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.937998425006462,
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-      "duration_frames": 68118,
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-      "utterance_id": "5248-34499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34499.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 107750
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.36086082573135,
-      "end_time": 27.017155068849114,
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-      "overlap": false,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 159755
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.766203152944072,
-      "end_time": 32.0,
-      "duration": 4.2337968470559275,
-      "start_frame": 444259,
-      "duration_frames": 67740,
-      "overlap": false,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 218255
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/laugh/0020.wav",
-      "duration": 0.84,
-      "start_time": 27.076833998823417,
-      "speaker_id": "845"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/cough/0001.wav",
-      "duration": 1.0,
-      "start_time": 22.161885752197012,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/laugh/0008.wav",
-      "duration": 0.7628361102953463,
-      "start_time": 31.237163889704654,
-      "speaker_id": "845"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002614.json b/conversations/conv_002614.json
deleted file mode 100644
index 963f79145f4015cfc5142e38d9e6b34bcfce268b..0000000000000000000000000000000000000000
--- a/conversations/conv_002614.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.793911851662365,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.2952844769504495,
-      "duration": 6.2952844769504495,
-      "start_frame": 0,
-      "duration_frames": 100724,
-      "overlap": false,
-      "utterance_id": "969-134363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134363.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.841696286208947,
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-      "duration_frames": 66877,
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-      "utterance_id": "7478-98644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98644.flac |",
-      "real_speaker_id": "7478",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 58149,
-      "overlap": false,
-      "utterance_id": "969-134362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134362.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.42187990323794,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98644.flac |",
-      "real_speaker_id": "7478",
-      "position_frames": 66877
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129796.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98645.flac |",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "7478"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002618.json b/conversations/conv_002618.json
deleted file mode 100644
index c53961e785037ad2ae5ff1f75a5052dfb1b739fb..0000000000000000000000000000000000000000
--- a/conversations/conv_002618.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.967266822672967,
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-      "overlap": false,
-      "utterance_id": "1179-136599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1179-136599.flac |",
-      "real_speaker_id": "1179",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.527489872638043,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1179-138367.flac |",
-      "real_speaker_id": "1179",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 13.961838313716093,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 50361
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-    {
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-      "speaker_id": 0,
-      "start_time": 19.274925721895784,
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-      "overlap": false,
-      "utterance_id": "1179-136599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1179-136599.flac |",
-      "real_speaker_id": "1179",
-      "position_frames": 79476
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.770807355937052,
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-      "duration": 4.605930768899896,
-      "start_frame": 364332,
-      "duration_frames": 73694,
-      "overlap": false,
-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 122616
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.41627066332825,
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-      "utterance_id": "4813-248638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248638.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_16.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_002622.json b/conversations/conv_002622.json
deleted file mode 100644
index 8122a56867cd7425143ab34453cb2ec20dbb8c54..0000000000000000000000000000000000000000
--- a/conversations/conv_002622.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5886-27508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5886-27508.flac |",
-      "real_speaker_id": "5886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5886-27508.flac |",
-      "real_speaker_id": "5886",
-      "position_frames": 75084
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.43627300158845,
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-      "duration": 3.56372699841155,
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-      "overlap": false,
-      "utterance_id": "6242-26941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
-      "position_frames": 148388
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.24,
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-      "speaker_id": "2361"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 30.72,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6242/cough/0109.wav",
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-      "speaker_id": "6242"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002625.json b/conversations/conv_002625.json
deleted file mode 100644
index 58a9953fadc9bf214f8d0e9b1372d8f2a333bc87..0000000000000000000000000000000000000000
--- a/conversations/conv_002625.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.459190974951067,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.114490935201263,
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-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1061-142358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-142358.flac |",
-      "real_speaker_id": "1061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.844552652947758,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 77184
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.47645374973785,
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-      "duration": 5.982737225213216,
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-      "overlap": false,
-      "utterance_id": "1061-142358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-142358.flac |",
-      "real_speaker_id": "1061",
-      "position_frames": 49970
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 11.471190056056024,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/60/laugh/0017.wav",
-      "duration": 1.467908195131503,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1061/laugh/0061.wav",
-      "duration": 1.44,
-      "start_time": 23.878739908015103,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002633.json b/conversations/conv_002633.json
deleted file mode 100644
index b0bd7cf144732e3745c6bbc0c3a70f2179f4eb90..0000000000000000000000000000000000000000
--- a/conversations/conv_002633.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.579242506918735,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 4.762203320128555,
-      "start_frame": 0,
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-      "utterance_id": "1717-142305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74243.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74244.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
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-      "utterance_id": "4967-26553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-26553.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.63263058026987,
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-      "duration_frames": 62861,
-      "overlap": true,
-      "utterance_id": "6705-74243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74243.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 90115
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.719623498984358,
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-      "duration": 4.859619007934377,
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-      "overlap": true,
-      "utterance_id": "4967-28868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-28868.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 25.74705215419501,
-      "start_time": 4.118488041027801
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
-      "duration": 0.19673469387755102,
-      "start_time": 25.71501497474761
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
-      "duration": 0.6236734693877551,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4967/laugh/0100.wav",
-      "duration": 1.56,
-      "start_time": 22.32985298471473,
-      "speaker_id": "4967"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002634.json b/conversations/conv_002634.json
deleted file mode 100644
index 1103617f7e6c22ac83508112efbf87004e7241f4..0000000000000000000000000000000000000000
--- a/conversations/conv_002634.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.5757632155563,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3746158533527755,
-      "duration": 3.3746158533527755,
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-      "duration_frames": 53993,
-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.685608642960715,
-      "end_time": 9.283970244053513,
-      "duration": 5.598361601092799,
-      "start_frame": 58969,
-      "duration_frames": 89573,
-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 53993
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.424459070672192,
-      "end_time": 13.24414956497861,
-      "duration": 3.819690494306418,
-      "start_frame": 150791,
-      "duration_frames": 61115,
-      "overlap": false,
-      "utterance_id": "8123-275216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275216.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.64841364975908,
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-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 143566
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.781924677561424,
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-      "overlap": false,
-      "utterance_id": "8123-275209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275209.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.337217296137094,
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-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 215796
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.663079702003657,
-      "end_time": 31.5757632155563,
-      "duration": 1.9126835135526434,
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-      "duration_frames": 30602,
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-      "utterance_id": "8123-275193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275193.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 2.1572795056779124,
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1645/laugh/0015.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8123/laugh/0103.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8123/laugh/0092.wav",
-      "duration": 1.4914890817011104,
-      "start_time": 24.576475554898636,
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-    {
-      "event_class": "cough",
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-      "duration": 0.4063897816694342,
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-      "speaker_id": "1645"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002638.json b/conversations/conv_002638.json
deleted file mode 100644
index ed50db4f7a5890837d2e21fbd50e9098e2850604..0000000000000000000000000000000000000000
--- a/conversations/conv_002638.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3119-163527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163527.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9367858859228044,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163527.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 59977
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.102306250430532,
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-      "utterance_id": "3032-19361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.477133662188033,
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-      "duration": 4.131469906648251,
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-      "overlap": false,
-      "utterance_id": "3119-163527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163527.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 108008
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-119258.flac |",
-      "real_speaker_id": "6914",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
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-      "start_time": 24.041283435173263,
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-      "duration": 5.097354943087674,
-      "start_frame": 384660,
-      "duration_frames": 81557,
-      "overlap": false,
-      "utterance_id": "3119-163519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163519.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.67480487873963,
-      "end_time": 32.0,
-      "duration": 2.3251951212603714,
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-      "duration_frames": 37203,
-      "overlap": false,
-      "utterance_id": "6914-119258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-119258.flac |",
-      "real_speaker_id": "6914",
-      "position_frames": 64985
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_0.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.0800176886929451,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3032/laugh/0043.wav",
-      "duration": 1.0,
-      "start_time": 5.910330184538864,
-      "speaker_id": "3032"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6914/laugh/0132.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3119/cough/0019.wav",
-      "duration": 1.08,
-      "start_time": 25.53923736382204,
-      "speaker_id": "3119"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002643.json b/conversations/conv_002643.json
deleted file mode 100644
index 535edd62b4c34f849dd25825e7cb895bbd90ca91..0000000000000000000000000000000000000000
--- a/conversations/conv_002643.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.594034880920211,
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-      "utterance_id": "3285-121401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121401.flac |",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0002",
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "6695-252334",
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-      "position_frames": 0
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-  "background_events": [
-    {
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6695/laugh/0126.wav",
-      "duration": 0.92,
-      "start_time": 31.08,
-      "speaker_id": "6695"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002655.json b/conversations/conv_002655.json
deleted file mode 100644
index d08afd79978bf866eb22241ae3f6278346409e8e..0000000000000000000000000000000000000000
--- a/conversations/conv_002655.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.359303601055576,
-      "duration": 5.359303601055576,
-      "start_frame": 0,
-      "duration_frames": 85748,
-      "overlap": false,
-      "utterance_id": "3557-8341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8341.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.21113248778174,
-      "end_time": 9.958369015560184,
-      "duration": 4.747236527778442,
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-      "duration_frames": 75955,
-      "overlap": true,
-      "utterance_id": "8490-284269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284269.flac |",
-      "real_speaker_id": "8490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.828727432466394,
-      "end_time": 15.82459588790875,
-      "duration": 4.995868455442355,
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-      "overlap": false,
-      "utterance_id": "3557-8342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8342.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.35415004475832,
-      "end_time": 22.58700677834181,
-      "duration": 6.232856733583491,
-      "start_frame": 261666,
-      "duration_frames": 99725,
-      "overlap": false,
-      "utterance_id": "8490-284268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284268.flac |",
-      "real_speaker_id": "8490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.029640903191492,
-      "end_time": 27.57894891370547,
-      "duration": 5.549308010513979,
-      "start_frame": 352474,
-      "duration_frames": 88788,
-      "overlap": true,
-      "utterance_id": "3557-159359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-159359.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.958855886856743,
-      "end_time": 32.0,
-      "duration": 3.0411441131432575,
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-      "duration_frames": 48658,
-      "overlap": false,
-      "utterance_id": "3557-8341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8341.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 85748
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3557/cough/0125.wav",
-      "duration": 1.12,
-      "start_time": 0,
-      "speaker_id": "3557"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3557/laugh/0115.wav",
-      "duration": 1.36,
-      "start_time": 27.46652429640201,
-      "speaker_id": "3557"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002658.json b/conversations/conv_002658.json
deleted file mode 100644
index 5b87d0c7174be45c67f8d091c656d5e9f85c0dda..0000000000000000000000000000000000000000
--- a/conversations/conv_002658.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.6077019865688005,
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-      "utterance_id": "7069-246904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246904.flac |",
-      "real_speaker_id": "7069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8337-280361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-280361.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.23395873014893,
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-      "overlap": false,
-      "utterance_id": "8337-284519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-284519.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.960900600530994,
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-      "utterance_id": "3288-7157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3288-7157.flac |",
-      "real_speaker_id": "3288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.398024885229177,
-      "end_time": 28.889139841460583,
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-      "overlap": false,
-      "utterance_id": "8337-283569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-283569.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.826488110000895,
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-      "overlap": false,
-      "utterance_id": "7069-246889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246889.flac |",
-      "real_speaker_id": "7069",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "duration": 1.16,
-      "start_time": 23.556595995600407,
-      "speaker_id": "3288"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002659.json b/conversations/conv_002659.json
deleted file mode 100644
index c333f47b4247aca878a32661601883bead61722d..0000000000000000000000000000000000000000
--- a/conversations/conv_002659.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.716105563844255,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1804-170447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-170447.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7702-96101",
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-      "real_speaker_id": "7702",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-170447.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 75001
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "954",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1804-131527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-131527.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002663.json b/conversations/conv_002663.json
deleted file mode 100644
index 459f206d17caf2f31c4046f4eed8245627570718..0000000000000000000000000000000000000000
--- a/conversations/conv_002663.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3148-4666",
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-      "position_frames": 0
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3148/cough/0075.wav",
-      "duration": 1.0207222199981638,
-      "start_time": 30.979277780001837,
-      "speaker_id": "3148"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002664.json b/conversations/conv_002664.json
deleted file mode 100644
index 587724b7f0b7f782f1d09fa8a51d2e013cdf00b3..0000000000000000000000000000000000000000
--- a/conversations/conv_002664.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.537876724370888,
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-      "utterance_id": "1757-128127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128127.flac |",
-      "real_speaker_id": "1757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.103436011386205,
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-      "duration": 5.679190611178098,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-43296.flac |",
-      "real_speaker_id": "5723",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "201-127786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.461558967767825,
-      "end_time": 23.80518969675817,
-      "duration": 6.343630728990345,
-      "start_frame": 279384,
-      "duration_frames": 101498,
-      "overlap": false,
-      "utterance_id": "5723-43296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-43296.flac |",
-      "real_speaker_id": "5723",
-      "position_frames": 90867
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.81665108503968,
-      "end_time": 30.62674414756146,
-      "duration": 5.810093062521778,
-      "start_frame": 397066,
-      "duration_frames": 92961,
-      "overlap": false,
-      "utterance_id": "201-122255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-122255.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.191386853432803,
-      "end_time": 32.0,
-      "duration": 0.8086131465671968,
-      "start_frame": 499062,
-      "duration_frames": 12937,
-      "overlap": false,
-      "utterance_id": "201-127786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 95545
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_1.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.0006632551925558,
-      "start_time": 30.895548923366817,
-      "speaker_id": "201"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002672.json b/conversations/conv_002672.json
deleted file mode 100644
index 51d07a958183a3b61d127341df61cdb559303582..0000000000000000000000000000000000000000
--- a/conversations/conv_002672.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2607-177749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177749.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.621090857653127,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-139733.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.069420345233098,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-139733.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 65838
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.178673678971556,
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-      "start_frame": 354858,
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-      "overlap": false,
-      "utterance_id": "2607-177749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177749.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 76317
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.203391960762353,
-      "end_time": 32.0,
-      "duration": 2.796608039237647,
-      "start_frame": 467254,
-      "duration_frames": 44745,
-      "overlap": false,
-      "utterance_id": "2208-10076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 105381
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/cough/0054.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1456/cough/0111.wav",
-      "duration": 0.7161722521502474,
-      "start_time": 4.747925648836593,
-      "speaker_id": "1456"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2208/cough/0058.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/cough/0032.wav",
-      "duration": 1.0311604280606244,
-      "start_time": 28.98757676455177,
-      "speaker_id": "2607"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002675.json b/conversations/conv_002675.json
deleted file mode 100644
index 119eea18b0fe9d9008f5a62b0a82561af9c24fd6..0000000000000000000000000000000000000000
--- a/conversations/conv_002675.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.977714425252295,
-      "duration": 4.977714425252295,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6206-14958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14958.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.779202725347389,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-294690.flac |",
-      "real_speaker_id": "7910",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14958.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 79643
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.93693729866858,
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-      "utterance_id": "598-127703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
-      "real_speaker_id": "598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.02590348629286,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-294690.flac |",
-      "real_speaker_id": "7910",
-      "position_frames": 62806
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.90210618813355,
-      "end_time": 32.0,
-      "duration": 3.0978938118664487,
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-      "duration_frames": 49566,
-      "overlap": false,
-      "utterance_id": "7910-294690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-294690.flac |",
-      "real_speaker_id": "7910",
-      "position_frames": 160213
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
-    {
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-      "event_class": "Vacuum_cleaner",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/598/laugh/0022.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "7910"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002679.json b/conversations/conv_002679.json
deleted file mode 100644
index 13131546dd7e26a17d3e81f9854868a26bcc8077..0000000000000000000000000000000000000000
--- a/conversations/conv_002679.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.681351592273202,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.70645757175625,
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-      "start_frame": 0,
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3079/cough/0030.wav",
-      "duration": 0.7445303598918964,
-      "start_time": 1.9373271862011932,
-      "speaker_id": "3079"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3615/laugh/0060.wav",
-      "duration": 1.4,
-      "start_time": 3.4176591383068375,
-      "speaker_id": "3615"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3079/laugh/0027.wav",
-      "duration": 1.18,
-      "start_time": 13.582750421908177,
-      "speaker_id": "3079"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002680.json b/conversations/conv_002680.json
deleted file mode 100644
index a044b9af434c672129b3fe10684fa0cfd219df17..0000000000000000000000000000000000000000
--- a/conversations/conv_002680.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.552624983968068,
-      "duration": 4.552624983968068,
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-      "overlap": false,
-      "utterance_id": "1171-134968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-134968.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.240735832384905,
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-      "duration": 6.338108499959518,
-      "start_frame": 83851,
-      "duration_frames": 101409,
-      "overlap": false,
-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.906296078607888,
-      "end_time": 16.674837590127645,
-      "duration": 4.768541511519758,
-      "start_frame": 190500,
-      "duration_frames": 76296,
-      "overlap": false,
-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.237087102483443,
-      "end_time": 23.11751324536122,
-      "duration": 5.880426142877777,
-      "start_frame": 275793,
-      "duration_frames": 94086,
-      "overlap": false,
-      "utterance_id": "1171-130776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.833905865387717,
-      "end_time": 30.26172323411802,
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-      "duration_frames": 102845,
-      "overlap": false,
-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 101409
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.397972210950115,
-      "end_time": 32.0,
-      "duration": 0.6020277890498846,
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-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 204254
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7215/laugh/0080.wav",
-      "duration": 1.091295215315431,
-      "start_time": 14.668515977639162,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/679/laugh/0047.wav",
-      "duration": 1.64,
-      "start_time": 26.747890075728638,
-      "speaker_id": "679"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002696.json b/conversations/conv_002696.json
deleted file mode 100644
index 6f9569cbd4a41e6429add061efaeb26ac531dda5..0000000000000000000000000000000000000000
--- a/conversations/conv_002696.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "115-121896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121896.flac |",
-      "real_speaker_id": "115",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.085637129404536,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173555.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 9.77069352513275,
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-      "utterance_id": "115-121720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121720.flac |",
-      "real_speaker_id": "115",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.401950462157956,
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-      "utterance_id": "3094-136458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.531375159067778,
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-      "duration": 5.280925352839924,
-      "start_frame": 312502,
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-      "overlap": false,
-      "utterance_id": "115-121896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121896.flac |",
-      "real_speaker_id": "115",
-      "position_frames": 88651
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.47224177311537,
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-      "utterance_id": "3094-136458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 53658
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.216658373200975,
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-      "utterance_id": "115-121720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121720.flac |",
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-      "position_frames": 68586
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_002706.json b/conversations/conv_002706.json
deleted file mode 100644
index 2074b3914cf0f1785bde24a58c16228866a767a3..0000000000000000000000000000000000000000
--- a/conversations/conv_002706.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "4957-23295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-23295.flac |",
-      "real_speaker_id": "4957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8710",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1200-135059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135059.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "4957",
-      "position_frames": 51795
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.016849608415686,
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-      "utterance_id": "8710-295447",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "4957-36386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-36386.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_002710.json b/conversations/conv_002710.json
deleted file mode 100644
index e24be7d51329f462bdc9b798f67a80f284d8d433..0000000000000000000000000000000000000000
--- a/conversations/conv_002710.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.280418087262919,
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-      "real_speaker_id": "7107",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
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-    {
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6782/laugh/0059.wav",
-      "duration": 1.48,
-      "start_time": 0,
-      "speaker_id": "6782"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7107/laugh/0079.wav",
-      "duration": 0.7189038413793243,
-      "start_time": 5.963762635618731,
-      "speaker_id": "7107"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7107/cough/0054.wav",
-      "duration": 0.6263958579623836,
-      "start_time": 14.902146144798854,
-      "speaker_id": "7107"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6782/laugh/0051.wav",
-      "duration": 0.7061007817889452,
-      "start_time": 23.70454245901678,
-      "speaker_id": "6782"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002721.json b/conversations/conv_002721.json
deleted file mode 100644
index 1b872b1590d08aaebf25cbffef293da871d0d5d5..0000000000000000000000000000000000000000
--- a/conversations/conv_002721.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.385565826571225,
-      "duration": 4.385565826571225,
-      "start_frame": 0,
-      "duration_frames": 70169,
-      "overlap": false,
-      "utterance_id": "5778-54535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-54535.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.823004482031251,
-      "end_time": 10.430037019092026,
-      "duration": 5.607032537060774,
-      "start_frame": 77168,
-      "duration_frames": 89712,
-      "overlap": false,
-      "utterance_id": "6627-67850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.914714625851788,
-      "end_time": 14.195620520007274,
-      "duration": 3.280905894155487,
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-      "duration_frames": 52494,
-      "overlap": false,
-      "utterance_id": "5778-12761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-12761.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.742094572976047,
-      "end_time": 20.35846652204192,
-      "duration": 5.616371949065871,
-      "start_frame": 235873,
-      "duration_frames": 89861,
-      "overlap": false,
-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.49947521302064,
-      "end_time": 24.415487175045172,
-      "duration": 3.9160119620245313,
-      "start_frame": 327991,
-      "duration_frames": 62656,
-      "overlap": false,
-      "utterance_id": "5778-12761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-12761.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 52494
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.108641863295194,
-      "end_time": 29.13734918678982,
-      "duration": 4.028707323494625,
-      "start_frame": 401738,
-      "duration_frames": 64459,
-      "overlap": false,
-      "utterance_id": "6627-67844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67844.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.639342385655574,
-      "end_time": 32.0,
-      "duration": 2.360657614344426,
-      "start_frame": 474229,
-      "duration_frames": 37770,
-      "overlap": false,
-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 89861
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
-      "duration": 0.6165759637188208,
-      "start_time": 2.899493986122152
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5778/cough/0096.wav",
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-      "speaker_id": "5778"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5778/cough/0092.wav",
-      "duration": 1.1130777869737036,
-      "start_time": 11.368128685479556,
-      "speaker_id": "5778"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2946/laugh/0076.wav",
-      "duration": 1.2162108899936592,
-      "start_time": 20.415421666622894,
-      "speaker_id": "2946"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6627/cough/0013.wav",
-      "duration": 1.3724512511049753,
-      "start_time": 26.824319852255478,
-      "speaker_id": "6627"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002726.json b/conversations/conv_002726.json
deleted file mode 100644
index 117d7c29c9a65d16930df9cc6c30f476725dbe5a..0000000000000000000000000000000000000000
--- a/conversations/conv_002726.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.575304780631704,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.689675125723507,
-      "duration": 4.689675125723507,
-      "start_frame": 0,
-      "duration_frames": 75034,
-      "overlap": false,
-      "utterance_id": "481-123720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123720.flac |",
-      "real_speaker_id": "481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.242882018482856,
-      "end_time": 9.681312533363162,
-      "duration": 4.438430514880305,
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-      "overlap": false,
-      "utterance_id": "8666-293945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293945.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.558127295279778,
-      "end_time": 14.600938460300508,
-      "duration": 5.042811165020731,
-      "start_frame": 152930,
-      "duration_frames": 80684,
-      "overlap": true,
-      "utterance_id": "8666-293945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293945.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 71014
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.162856012261162,
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-      "duration": 5.798465881922652,
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-      "duration_frames": 92775,
-      "overlap": false,
-      "utterance_id": "481-123719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123719.flac |",
-      "real_speaker_id": "481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.91759272686827,
-      "end_time": 26.191207734621166,
-      "duration": 4.2736150077528965,
-      "start_frame": 350681,
-      "duration_frames": 68377,
-      "overlap": true,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.100237282996428,
-      "end_time": 31.575304780631704,
-      "duration": 4.475067497635275,
-      "start_frame": 433603,
-      "duration_frames": 71601,
-      "overlap": true,
-      "utterance_id": "8666-293943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293943.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8666/cough/0039.wav",
-      "duration": 1.28,
-      "start_time": 8.11072004002985,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/481/laugh/0116.wav",
-      "duration": 0.5001242356153436,
-      "start_time": 22.207039408888292,
-      "speaker_id": "481"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2056/laugh/0078.wav",
-      "duration": 0.92,
-      "start_time": 20.859090172058607,
-      "speaker_id": "2056"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002730.json b/conversations/conv_002730.json
deleted file mode 100644
index effeb109e2669740348c32f06aa1b42ca70ee780..0000000000000000000000000000000000000000
--- a/conversations/conv_002730.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 96470,
-      "overlap": false,
-      "utterance_id": "8011-111754",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-111754.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.676031856102659,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220951.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8011-117866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.04835788806036,
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-      "start_frame": 288773,
-      "duration_frames": 102236,
-      "overlap": false,
-      "utterance_id": "4734-220952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220952.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.622744005101136,
-      "end_time": 29.893949059018762,
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-      "overlap": false,
-      "utterance_id": "8011-291458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-291458.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.500909726645066,
-      "end_time": 32.0,
-      "duration": 1.499090273354934,
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-      "utterance_id": "4734-220951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220951.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 86086
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 2.2977074650363964,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4734/laugh/0030.wav",
-      "duration": 0.96,
-      "start_time": 9.208256437827755,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4734/cough/0032.wav",
-      "duration": 1.0176938224472518,
-      "start_time": 30.982306177552747,
-      "speaker_id": "4734"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002737.json b/conversations/conv_002737.json
deleted file mode 100644
index 6456edaafed696669f9bc7dc70392e8691cdd7f2..0000000000000000000000000000000000000000
--- a/conversations/conv_002737.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4820704354115115,
-      "duration": 3.4820704354115115,
-      "start_frame": 0,
-      "duration_frames": 55713,
-      "overlap": false,
-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.2097547505014905,
-      "end_time": 7.650017967201977,
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-      "duration_frames": 55044,
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-      "utterance_id": "3470-116548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3470-116548.flac |",
-      "real_speaker_id": "3470",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 55713
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
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-      "position_frames": 65315
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\ No newline at end of file
diff --git a/conversations/conv_002747.json b/conversations/conv_002747.json
deleted file mode 100644
index 8fd85a1de6e8651d86015b7449b2f9881df38920..0000000000000000000000000000000000000000
--- a/conversations/conv_002747.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-102886.flac |",
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-      "segment_id": "seg0004",
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-      "start_time": 19.12121928027625,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-29401.flac |",
-      "real_speaker_id": "3698",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105213.flac |",
-      "real_speaker_id": "6402",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_002751.json b/conversations/conv_002751.json
deleted file mode 100644
index 067afd4521968e5c101e736adfb0e08855726173..0000000000000000000000000000000000000000
--- a/conversations/conv_002751.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
-      "real_speaker_id": "7208",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172388.flac |",
-      "real_speaker_id": "8430",
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-      "real_speaker_id": "7434",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172387.flac |",
-      "real_speaker_id": "8430",
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-      "real_speaker_id": "7208",
-      "position_frames": 79215
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "7208"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002760.json b/conversations/conv_002760.json
deleted file mode 100644
index b1bf06d469846cd3815193ebc21f93a645c6b1e4..0000000000000000000000000000000000000000
--- a/conversations/conv_002760.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3021-121439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121439.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "3021",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "real_speaker_id": "7294",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3021-121438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_002767.json b/conversations/conv_002767.json
deleted file mode 100644
index fa95d0e0fb210de3f2e677551204e85c8fc8b683..0000000000000000000000000000000000000000
--- a/conversations/conv_002767.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.20486190888594,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.87860698559146,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26894.flac |",
-      "real_speaker_id": "4806",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "speaker_id": "1985"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002771.json b/conversations/conv_002771.json
deleted file mode 100644
index 3455e16310fa89cf20d4709831d57aa5e4021a66..0000000000000000000000000000000000000000
--- a/conversations/conv_002771.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.25,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4156-12155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.451957490175758,
-      "end_time": 6.929473560482673,
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-      "duration_frames": 55640,
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-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12351.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
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-      "speaker_id": 1,
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-      "utterance_id": "4156-12155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 50636
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 20.27618523646265,
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-      "utterance_id": "8138-293529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293529.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 24.8447063153446,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 119032
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-    {
-      "segment_id": "seg0007",
-      "speaker_id": 2,
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-      "utterance_id": "8138-293531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293531.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_002776.json b/conversations/conv_002776.json
deleted file mode 100644
index 0ca8b6acb9337b6edc77603001df53656bd8e99b..0000000000000000000000000000000000000000
--- a/conversations/conv_002776.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4487-1803.flac |",
-      "real_speaker_id": "4487",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145138.flac |",
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-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4487-1803.flac |",
-      "real_speaker_id": "4487",
-      "position_frames": 72132
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.04292777018422,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145138.flac |",
-      "real_speaker_id": "3307",
-      "position_frames": 84202
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.931792940750242,
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-      "utterance_id": "4487-1799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4487-1799.flac |",
-      "real_speaker_id": "4487",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 28.267561764728786,
-      "speaker_id": "3307"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002784.json b/conversations/conv_002784.json
deleted file mode 100644
index 7f1e72e9ae1c11c003f27e0f07d292305c1e6afa..0000000000000000000000000000000000000000
--- a/conversations/conv_002784.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7777-106366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
-      "real_speaker_id": "7777",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 80900
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 96094
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 77840
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6411/laugh/0013.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6411/laugh/0093.wav",
-      "duration": 0.84,
-      "start_time": 16.49087210607808,
-      "speaker_id": "6411"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002788.json b/conversations/conv_002788.json
deleted file mode 100644
index 57c35014467918bc0a83f99c3209135480107650..0000000000000000000000000000000000000000
--- a/conversations/conv_002788.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.875296328558899,
-      "start_frame": 0,
-      "duration_frames": 94004,
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "1815"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002792.json b/conversations/conv_002792.json
deleted file mode 100644
index 03e8fc54869a1923ab43b90fab762435ca090230..0000000000000000000000000000000000000000
--- a/conversations/conv_002792.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.253981496920265,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16002.flac |",
-      "real_speaker_id": "4490",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 7.148344430963474,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16002.flac |",
-      "real_speaker_id": "4490",
-      "position_frames": 100010
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-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1165-135220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135220.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135216.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16020.flac |",
-      "real_speaker_id": "4490",
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\ No newline at end of file
diff --git a/conversations/conv_002799.json b/conversations/conv_002799.json
deleted file mode 100644
index 1554ebe67de814549be022ddb716cb84621c22f8..0000000000000000000000000000000000000000
--- a/conversations/conv_002799.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1028-133395",
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-      "real_speaker_id": "1028",
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-    {
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-      "real_speaker_id": "5405",
-      "position_frames": 145588
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-      "position_frames": 111800
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-  "foreground_events": [
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-      "event_class": "cough",
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-      "duration": 1.12,
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-      "speaker_id": "5405"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002803.json b/conversations/conv_002803.json
deleted file mode 100644
index 543c6b8e976499e7ae97a6ecfc88a132e779bbcd..0000000000000000000000000000000000000000
--- a/conversations/conv_002803.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "8072-284670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9582244399370907,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123216.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
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-      "real_speaker_id": "8072",
-      "position_frames": 53191
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-    {
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-      "real_speaker_id": "112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-127936.flac |",
-      "real_speaker_id": "231",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.995603496686968,
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-      "utterance_id": "112-121671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-121671.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 26.704322909169953,
-      "speaker_id": "231"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002808.json b/conversations/conv_002808.json
deleted file mode 100644
index 06b0d2d67cc8076ee5d69163c511a744a7bdb8e0..0000000000000000000000000000000000000000
--- a/conversations/conv_002808.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "200-124139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124139.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-126784.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8445-281203",
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-      "real_speaker_id": "8445",
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-      "real_speaker_id": "8445",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124140.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "8445-281202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8445-281202.flac |",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8445/laugh/0043.wav",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_002815.json b/conversations/conv_002815.json
deleted file mode 100644
index d767d1ecdf9acbe28d4c589a37412175e5690572..0000000000000000000000000000000000000000
--- a/conversations/conv_002815.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3796-6400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-6400.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7301-92166.flac |",
-      "real_speaker_id": "7301",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-6400.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 79904
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.71549877545727,
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-      "overlap": false,
-      "utterance_id": "8421-283462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.915795829612158,
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-      "utterance_id": "3796-6400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-6400.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 161373
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.835500828847408,
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-      "utterance_id": "8421-283462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 73468
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "cough",
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-      "speaker_id": "8421"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002819.json b/conversations/conv_002819.json
deleted file mode 100644
index 3778e4d824f0439b430edf368761e80515532a23..0000000000000000000000000000000000000000
--- a/conversations/conv_002819.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.412192643857157,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2050-164332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160964.flac |",
-      "real_speaker_id": "2823",
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-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "2050-157659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.767121050230195,
-      "end_time": 25.001143857921548,
-      "duration": 5.234022807691353,
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-      "duration_frames": 83744,
-      "overlap": false,
-      "utterance_id": "2050-164332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 60364
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.787729100336513,
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-      "overlap": false,
-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 57515
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2882/laugh/0107.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002823.json b/conversations/conv_002823.json
deleted file mode 100644
index 6ce7303d38ff3c77b77cafc60ffbbfa97c97d285..0000000000000000000000000000000000000000
--- a/conversations/conv_002823.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.03528060265402,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.383280538112517,
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-      "start_frame": 0,
-      "duration_frames": 86132,
-      "overlap": false,
-      "utterance_id": "2374-155651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.700733710365244,
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-      "overlap": false,
-      "utterance_id": "1874-89898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-89898.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.636724651319659,
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-      "utterance_id": "8635-295761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295761.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.459698516685084,
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-      "duration_frames": 75760,
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-      "utterance_id": "1874-89898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-89898.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 58994
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8635-295761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295761.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 105085
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.280362763032436,
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-      "duration": 2.7549178396215837,
-      "start_frame": 452485,
-      "duration_frames": 44078,
-      "overlap": true,
-      "utterance_id": "1874-165702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-165702.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-      "start_time": 5.558419516772424,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1874/laugh/0085.wav",
-      "duration": 1.16,
-      "start_time": 9.220952600207935,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1874/laugh/0001.wav",
-      "duration": 0.786873934558736,
-      "start_time": 20.89664412459065,
-      "speaker_id": "1874"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002835.json b/conversations/conv_002835.json
deleted file mode 100644
index f5aa3bda8da3a11407a744ecd22e5dffc09364d5..0000000000000000000000000000000000000000
--- a/conversations/conv_002835.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.41015274254854,
-      "duration": 6.41015274254854,
-      "start_frame": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
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-      "start_time": 6.611808844380539,
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-      "position_frames": 0
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-      "real_speaker_id": "8468",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 95223
-    },
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "duration": 0.7106985305311326,
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-      "utterance_id": "8468-286673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8468-286673.flac |",
-      "real_speaker_id": "8468",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-      "start_time": 8.195013890254648
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-      "start_time": 1.655629458920025
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7957/laugh/0085.wav",
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-      "start_time": 22.644773708848213,
-      "speaker_id": "7957"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8468/laugh/0067.wav",
-      "duration": 0.6236842801952212,
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-      "speaker_id": "8468"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2971/laugh/0014.wav",
-      "duration": 1.0950324838209116,
-      "start_time": 26.13122563316331,
-      "speaker_id": "2971"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002839.json b/conversations/conv_002839.json
deleted file mode 100644
index 147ebb1b8c49a4e5867761bff2f9bcb2c26dd51f..0000000000000000000000000000000000000000
--- a/conversations/conv_002839.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.803369810433461,
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-      "start_frame": 0,
-      "duration_frames": 76853,
-      "overlap": false,
-      "utterance_id": "2285-149890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-149890.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.9730435103575505,
-      "end_time": 11.106795910005332,
-      "duration": 6.13375239964778,
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-      "duration_frames": 98140,
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-      "utterance_id": "365-84340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.638248549926516,
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-      "overlap": false,
-      "utterance_id": "2285-163380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-163380.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.77042053997839,
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-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.455908544260883,
-      "end_time": 25.542986539461445,
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-      "overlap": false,
-      "utterance_id": "365-126328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126328.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.762379659446147,
-      "end_time": 32.0,
-      "duration": 5.237620340553853,
-      "start_frame": 428198,
-      "duration_frames": 83801,
-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 72778
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-      "start_time": 6.4697169297755455
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/232915.wav",
-      "duration": 1.5698904845835768,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2285/laugh/0048.wav",
-      "duration": 0.6025361855786895,
-      "start_time": 4.922001040801845,
-      "speaker_id": "2285"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/365/laugh/0071.wav",
-      "duration": 0.9267197565439331,
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-    {
-      "event_class": "cough",
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-      "duration": 1.14,
-      "start_time": 10.368582385933578,
-      "speaker_id": "2285"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/365/laugh/0108.wav",
-      "duration": 1.4884268823322109,
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-      "speaker_id": "365"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3540/laugh/0060.wav",
-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "3540"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002842.json b/conversations/conv_002842.json
deleted file mode 100644
index 11a8b01f366d3cbd18989b33adde2cfddfef8c44..0000000000000000000000000000000000000000
--- a/conversations/conv_002842.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7839-109872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109872.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "3537-5703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5703.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7839-109876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109876.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.79549723980532,
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-      "overlap": false,
-      "utterance_id": "3537-5703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5703.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 74962
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.75809844632764,
-      "end_time": 28.6245408032888,
-      "duration": 6.866442356961158,
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-      "utterance_id": "7839-110063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-110063.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.19048895779328,
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-      "duration": 2.8095110422067187,
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-      "utterance_id": "6351-65787",
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-      "real_speaker_id": "6351",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7839/cough/0067.wav",
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-      "start_time": 0,
-      "speaker_id": "7839"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3537/laugh/0042.wav",
-      "duration": 0.9338603580378235,
-      "start_time": 8.392444966465234,
-      "speaker_id": "3537"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7839/laugh/0116.wav",
-      "duration": 0.9147461592410664,
-      "start_time": 16.052976652543805,
-      "speaker_id": "7839"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7839/laugh/0043.wav",
-      "duration": 1.28,
-      "start_time": 28.861535806031647,
-      "speaker_id": "7839"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7839/cough/0015.wav",
-      "duration": 1.08,
-      "start_time": 28.677683653171265,
-      "speaker_id": "7839"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6351/laugh/0072.wav",
-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "6351"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002849.json b/conversations/conv_002849.json
deleted file mode 100644
index 3a7b35ac78e3f0e225f0ba5aaf42adec707b23fd..0000000000000000000000000000000000000000
--- a/conversations/conv_002849.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "8443-294707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 6.6275939192992865,
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-      "utterance_id": "1618-220956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-220956.flac |",
-      "real_speaker_id": "1618",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "3546-175390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 18.595000577206914,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-220956.flac |",
-      "real_speaker_id": "1618",
-      "position_frames": 79207
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3546-9342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-9342.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.064107779940677,
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-      "utterance_id": "1618-32403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-32403.flac |",
-      "real_speaker_id": "1618",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1618/cough/0033.wav",
-      "duration": 0.34553265642678627,
-      "start_time": 6.280325811156,
-      "speaker_id": "1618"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3546/laugh/0036.wav",
-      "duration": 1.02,
-      "start_time": 11.203174659566766,
-      "speaker_id": "3546"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002854.json b/conversations/conv_002854.json
deleted file mode 100644
index 6873bdeff3ab1fe443e4b489d0931b2d684364d7..0000000000000000000000000000000000000000
--- a/conversations/conv_002854.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.49253119091654,
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-      "overlap": false,
-      "utterance_id": "7995-276907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-276907.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.645040683207771,
-      "end_time": 11.238046291459238,
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-      "overlap": true,
-      "utterance_id": "6534-64469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64469.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.889867766371374,
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-      "start_frame": 206237,
-      "duration_frames": 88732,
-      "overlap": false,
-      "utterance_id": "8500-258286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258286.flac |",
-      "real_speaker_id": "8500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.102490590341887,
-      "end_time": 23.59473309885682,
-      "duration": 5.492242508514936,
-      "start_frame": 289639,
-      "duration_frames": 87875,
-      "overlap": true,
-      "utterance_id": "7995-276907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-276907.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 71880
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.9857070866584,
-      "end_time": 30.47570081629302,
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-      "utterance_id": "6534-71091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-71091.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.997354156117083,
-      "end_time": 32.0,
-      "duration": 1.0026458438829167,
-      "start_frame": 495957,
-      "duration_frames": 16042,
-      "overlap": false,
-      "utterance_id": "8500-258286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258286.flac |",
-      "real_speaker_id": "8500",
-      "position_frames": 88732
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "7995"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002858.json b/conversations/conv_002858.json
deleted file mode 100644
index aff0dcbb0b496b193cb793551333bd541b163855..0000000000000000000000000000000000000000
--- a/conversations/conv_002858.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.605988600750738,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "192-128344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128344.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.349422075336916,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 0
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-      "utterance_id": "94-3793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3793.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.89047763028539,
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-      "utterance_id": "192-123167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-123167.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.4648395935881,
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-      "utterance_id": "94-3794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3794.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.31421851366863,
-      "end_time": 31.605988600750738,
-      "duration": 5.2917700870821065,
-      "start_frame": 421027,
-      "duration_frames": 84668,
-      "overlap": true,
-      "utterance_id": "7134-67233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 67172
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.44,
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-    {
-      "event_class": "laugh",
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-      "start_time": 28.295511723245298,
-      "speaker_id": "7134"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002862.json b/conversations/conv_002862.json
deleted file mode 100644
index 9b421133929763f02321ffdff88889f569bf7a16..0000000000000000000000000000000000000000
--- a/conversations/conv_002862.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.9900342495404955,
-      "duration": 5.9900342495404955,
-      "start_frame": 0,
-      "duration_frames": 95840,
-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.791383114173702,
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-      "overlap": false,
-      "utterance_id": "1898-145715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145715.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "3852-175448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.185185947731718,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 95840
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 194820
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.360496639046797,
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-      "duration": 0.6395033609532028,
-      "start_frame": 501767,
-      "duration_frames": 10232,
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-      "utterance_id": "1898-145715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145715.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 77825
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1898/cough/0099.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002865.json b/conversations/conv_002865.json
deleted file mode 100644
index e4c50c9abd157833ab2524bbdc3de935c699b533..0000000000000000000000000000000000000000
--- a/conversations/conv_002865.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.712582569001054,
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-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.284504358414266,
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-      "real_speaker_id": "7879",
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-    {
-      "segment_id": "seg0002",
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-    {
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-      "real_speaker_id": "1166",
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-    {
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-      "duration_frames": 81622,
-      "overlap": false,
-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 183504
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.797775701491698,
-      "end_time": 32.0,
-      "duration": 3.202224298508302,
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-      "overlap": false,
-      "utterance_id": "7879-274163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274163.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 61637
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
-      "duration": 3.0985034013605444,
-      "start_time": 12.475192939323223
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7879/laugh/0035.wav",
-      "duration": 0.9710379310147708,
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-      "speaker_id": "7879"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8404/cough/0069.wav",
-      "duration": 0.6138234546808436,
-      "start_time": 9.643169203953963,
-      "speaker_id": "8404"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8404/laugh/0058.wav",
-      "duration": 1.68,
-      "start_time": 25.50947321061753,
-      "speaker_id": "8404"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002874.json b/conversations/conv_002874.json
deleted file mode 100644
index 8ccec5db55963ee07c2dccdf1d5ab48ab5e93e09..0000000000000000000000000000000000000000
--- a/conversations/conv_002874.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.2280405281650415,
-      "duration": 3.2280405281650415,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6189-64708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.7979532054188447,
-      "end_time": 7.505166794425287,
-      "duration": 3.707213589006443,
-      "start_frame": 60767,
-      "duration_frames": 59315,
-      "overlap": false,
-      "utterance_id": "6367-74004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-74004.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.887317018300532,
-      "end_time": 11.370687999804034,
-      "duration": 3.483370981503502,
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-      "duration_frames": 55733,
-      "overlap": false,
-      "utterance_id": "3433-718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-718.flac |",
-      "real_speaker_id": "3433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.73129251344956,
-      "end_time": 16.36870427852905,
-      "duration": 3.6374117650794933,
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-      "duration_frames": 58198,
-      "overlap": false,
-      "utterance_id": "6189-64708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 51648
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 16.471811075957426,
-      "end_time": 19.848266748823953,
-      "duration": 3.3764556728665287,
-      "start_frame": 263548,
-      "duration_frames": 54023,
-      "overlap": false,
-      "utterance_id": "3433-20043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-20043.flac |",
-      "real_speaker_id": "3433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 20.716282015258663,
-      "end_time": 24.759083146376,
-      "duration": 4.042801131117335,
-      "start_frame": 331460,
-      "duration_frames": 64684,
-      "overlap": false,
-      "utterance_id": "6367-65536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 25.265239627012626,
-      "end_time": 30.276020674583904,
-      "duration": 5.010781047571276,
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-      "overlap": false,
-      "utterance_id": "6189-64708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 109846
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 1,
-      "start_time": 30.415588479079094,
-      "end_time": 32.0,
-      "duration": 1.5844115209209058,
-      "start_frame": 486649,
-      "duration_frames": 25350,
-      "overlap": false,
-      "utterance_id": "3433-20043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-20043.flac |",
-      "real_speaker_id": "3433",
-      "position_frames": 54023
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.984236199810403,
-      "start_time": 28.42244955417009
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6189/laugh/0036.wav",
-      "duration": 1.5,
-      "start_time": 0,
-      "speaker_id": "6189"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6367/laugh/0011.wav",
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-      "start_time": 4.195109499819562,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6367/cough/0005.wav",
-      "duration": 0.3441217230051073,
-      "start_time": 4.5298143905257096,
-      "speaker_id": "6367"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3433/laugh/0084.wav",
-      "duration": 1.12,
-      "start_time": 19.98748311746289,
-      "speaker_id": "3433"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002875.json b/conversations/conv_002875.json
deleted file mode 100644
index 710b4a403977e6102b2e22009a528f4d6e007f13..0000000000000000000000000000000000000000
--- a/conversations/conv_002875.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.900274182487392,
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-      "duration_frames": 66894,
-      "overlap": false,
-      "utterance_id": "103-1240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1240.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.131911815657846,
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-      "duration_frames": 101086,
-      "overlap": false,
-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 58229
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.870103696747012,
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-      "duration": 4.486306005583461,
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-      "overlap": false,
-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 159315
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.58348047886753,
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-      "duration": 5.906902612454271,
-      "start_frame": 329335,
-      "duration_frames": 94510,
-      "overlap": false,
-      "utterance_id": "126-125084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/126-125084.flac |",
-      "real_speaker_id": "126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.04594946704698,
-      "end_time": 30.427627127049092,
-      "duration": 3.38167766000211,
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-      "duration_frames": 54106,
-      "overlap": false,
-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 231095
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.78832032650379,
-      "end_time": 32.0,
-      "duration": 1.21167967349621,
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-      "duration_frames": 19386,
-      "overlap": false,
-      "utterance_id": "103-1241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
-      "duration": 0.236984126984127,
-      "start_time": 2.4611969449596875
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5980/laugh/0059.wav",
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-      "start_time": 30.59404999849055,
-      "speaker_id": "5980"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002878.json b/conversations/conv_002878.json
deleted file mode 100644
index e402b937d9597bc9372d000a73a22a1b346ff65d..0000000000000000000000000000000000000000
--- a/conversations/conv_002878.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "end_time": 4.202043308963752,
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-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "1559-139347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.175069362002422,
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-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 67232
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "duration_frames": 91787,
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-      "utterance_id": "1559-139353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.180659726182306,
-      "end_time": 27.733281167239635,
-      "duration": 6.55262144105733,
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-      "duration_frames": 104841,
-      "overlap": false,
-      "utterance_id": "7392-94500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-94500.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.633417293632842,
-      "end_time": 32.0,
-      "duration": 3.366582706367158,
-      "start_frame": 458134,
-      "duration_frames": 53865,
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-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 146263
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 21.866605547503998
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7392/laugh/0053.wav",
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-      "start_time": 20.382824458924574,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7392/cough/0072.wav",
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-      "start_time": 27.825669831797967,
-      "speaker_id": "7392"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002881.json b/conversations/conv_002881.json
deleted file mode 100644
index 10454277f32dd82255d4fbb69f8b4b40c974218f..0000000000000000000000000000000000000000
--- a/conversations/conv_002881.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.669020267963354,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.9081074255818775,
-      "duration": 6.9081074255818775,
-      "start_frame": 0,
-      "duration_frames": 110529,
-      "overlap": false,
-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.283134164195395,
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-      "duration_frames": 80566,
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-      "utterance_id": "3912-3831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-3831.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132530.flac |",
-      "real_speaker_id": "2411",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-82271.flac |",
-      "real_speaker_id": "3912",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-3831.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 80566
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-  "background_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2411/laugh/0036.wav",
-      "duration": 1.4,
-      "start_time": 21.65900083413034,
-      "speaker_id": "2411"
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-      "duration": 1.0,
-      "start_time": 23.097117898778535,
-      "speaker_id": "3912"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_002897.json b/conversations/conv_002897.json
deleted file mode 100644
index 4a52117b1e801efb9c695bab5a1c0fef03c14c5e..0000000000000000000000000000000000000000
--- a/conversations/conv_002897.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.100012758896357,
-      "end_time": 12.868256259238445,
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-      "overlap": false,
-      "utterance_id": "2062-109873",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2062-109873.flac |",
-      "real_speaker_id": "2062",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 14.082953235323904,
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-      "overlap": false,
-      "utterance_id": "56-1732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1732.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.872467973868034,
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-      "duration_frames": 61881,
-      "overlap": true,
-      "utterance_id": "2062-143900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2062-143900.flac |",
-      "real_speaker_id": "2062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.664961260546185,
-      "end_time": 25.94743509796782,
-      "duration": 3.2824738374216356,
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-      "duration_frames": 52519,
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-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 93696
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2062-143900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2062-143900.flac |",
-      "real_speaker_id": "2062",
-      "position_frames": 61881
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.938571596304655,
-      "end_time": 32.0,
-      "duration": 1.061428403695345,
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-      "utterance_id": "56-1733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1733.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4652/laugh/0028.wav",
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-      "start_time": 0,
-      "speaker_id": "4652"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002907.json b/conversations/conv_002907.json
deleted file mode 100644
index 1be9ea27ca8bd27d29c3060a9532cb14629943a8..0000000000000000000000000000000000000000
--- a/conversations/conv_002907.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6590-64282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64282.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6590-64283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64283.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.141177405316277,
-      "end_time": 27.123295508580714,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 66129
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.9785206895348892,
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-      "overlap": false,
-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 107971
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002911.json b/conversations/conv_002911.json
deleted file mode 100644
index 4fa66b6699b908f9d36630c4dff9626cead21959..0000000000000000000000000000000000000000
--- a/conversations/conv_002911.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.661817195909585,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 5.620199910751721,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.5163980019235765,
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-      "utterance_id": "5045-1197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-1197.flac |",
-      "real_speaker_id": "5045",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4848-101836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-101836.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "5104",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-1197.flac |",
-      "real_speaker_id": "5045",
-      "position_frames": 55676
-    },
-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4848/laugh/0109.wav",
-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "4848"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002920.json b/conversations/conv_002920.json
deleted file mode 100644
index 553a8617ffd537a37ed2301397b036c59e62fcd8..0000000000000000000000000000000000000000
--- a/conversations/conv_002920.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.764501450419199,
-      "duration": 5.764501450419199,
-      "start_frame": 0,
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-      "utterance_id": "7199-84006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84006.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.996718483653651,
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-      "utterance_id": "7507-100660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100660.flac |",
-      "real_speaker_id": "7507",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84007.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 21.30403662000104,
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-      "utterance_id": "5840-54193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54193.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.40111564181739,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84008.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.25935276666776,
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-      "utterance_id": "7507-100422",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100422.flac |",
-      "real_speaker_id": "7507",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 0,
-      "speaker_id": "7199"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7199/cough/0127.wav",
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-      "speaker_id": "5840"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002927.json b/conversations/conv_002927.json
deleted file mode 100644
index f3551dfedb353dee531c928e2c3bda8a67475551..0000000000000000000000000000000000000000
--- a/conversations/conv_002927.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.91844560061266,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8705-290361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290361.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.506830244001552,
-      "end_time": 10.227973181452153,
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-      "utterance_id": "7766-109658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-109658.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.610839337875042,
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-      "utterance_id": "8705-290361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290361.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 107430
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.2371680014435,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-109658.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 59538
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8705-290361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290361.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 175901
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.40233295457677,
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-      "duration": 3.5161126460358902,
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-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8705/laugh/0013.wav",
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-      "speaker_id": "7766"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002930.json b/conversations/conv_002930.json
deleted file mode 100644
index c5f3f732ea5b88caaf192f57bc041832660911ac..0000000000000000000000000000000000000000
--- a/conversations/conv_002930.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.6551326676737,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "56-1730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1730.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1733.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1733.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 95177
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.207171963694186,
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-      "utterance_id": "8575-290349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290349.flac |",
-      "real_speaker_id": "8575",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.692008952070616,
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-      "utterance_id": "8575-290349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290349.flac |",
-      "real_speaker_id": "8575",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "77-121518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121518.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_002931.json b/conversations/conv_002931.json
deleted file mode 100644
index 46894569cc2a1eea1e413c82bf9a9f4751e6bd57..0000000000000000000000000000000000000000
--- a/conversations/conv_002931.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "359-133630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-133630.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "6877-77361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6877-77361.flac |",
-      "real_speaker_id": "6877",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "30-4445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/30-4445.flac |",
-      "real_speaker_id": "30",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6877-77361.flac |",
-      "real_speaker_id": "6877",
-      "position_frames": 106364
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6877-77361.flac |",
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-      "position_frames": 187662
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 35535,
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-      "utterance_id": "359-133630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-133630.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 83420
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "359"
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-}
\ No newline at end of file
diff --git a/conversations/conv_002946.json b/conversations/conv_002946.json
deleted file mode 100644
index 8f8060a411e20b9024bc1c932274778cc08abbd8..0000000000000000000000000000000000000000
--- a/conversations/conv_002946.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7147-80028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "5290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.211229631316257,
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-      "utterance_id": "7147-80028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 98814
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-61958.flac |",
-      "real_speaker_id": "6224",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7147/laugh/0075.wav",
-      "duration": 1.0,
-      "start_time": 17.201967230515496,
-      "speaker_id": "7147"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_002950.json b/conversations/conv_002950.json
deleted file mode 100644
index 0912ec75aa1fb92efb1e6f5bb1df0c20540e02a2..0000000000000000000000000000000000000000
--- a/conversations/conv_002950.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.625013373130447,
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-      "utterance_id": "8424-284526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8424-284526.flac |",
-      "real_speaker_id": "8424",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.040054405265218,
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-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-274557.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.573514072275575,
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-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 135874
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-      "speaker_id": 0,
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-      "utterance_id": "8466-285142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.25274657239836,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_002966.json b/conversations/conv_002966.json
deleted file mode 100644
index 0657050ac26ad360dd11db648ce9a3bba3682452..0000000000000000000000000000000000000000
--- a/conversations/conv_002966.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.083582820778748,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 0
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-      "real_speaker_id": "3242",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/240-144999.flac |",
-      "real_speaker_id": "240",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "240",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_002967.json b/conversations/conv_002967.json
deleted file mode 100644
index f2403ad6be23070387f79cefbf227310d483dd65..0000000000000000000000000000000000000000
--- a/conversations/conv_002967.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.67796930402998,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "end_time": 6.786363024165075,
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-      "overlap": false,
-      "utterance_id": "8015-112691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112691.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1052-132776",
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-      "real_speaker_id": "1052",
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-      "segment_id": "seg0002",
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-      "utterance_id": "3979-10701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
-      "real_speaker_id": "3979",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "3979",
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-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_002970.json b/conversations/conv_002970.json
deleted file mode 100644
index 3a43bda165b45d1217521b666a815ffe352dbfb1..0000000000000000000000000000000000000000
--- a/conversations/conv_002970.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.716972857050816,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "246-122825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-122825.flac |",
-      "real_speaker_id": "246",
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-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "246-224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-224.flac |",
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-    {
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-      "utterance_id": "6102-56170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56170.flac |",
-      "real_speaker_id": "6102",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.804191441076078,
-      "end_time": 23.710446187208817,
-      "duration": 4.906254746132737,
-      "start_frame": 300867,
-      "duration_frames": 78500,
-      "overlap": false,
-      "utterance_id": "246-122825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-122825.flac |",
-      "real_speaker_id": "246",
-      "position_frames": 63034
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.529086811574707,
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-      "utterance_id": "6102-56170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56170.flac |",
-      "real_speaker_id": "6102",
-      "position_frames": 55461
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
-      "duration": 4.911070455350456,
-      "start_time": 8.885018757079441
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
-      "duration": 0.7175510204081633,
-      "start_time": 25.785378359753434
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/246/cough/0064.wav",
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-      "start_time": 1.8593189157780847,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6102/laugh/0009.wav",
-      "duration": 0.9,
-      "start_time": 13.370600154705466,
-      "speaker_id": "6102"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002985.json b/conversations/conv_002985.json
deleted file mode 100644
index 4db292ea92368ec7198ee5fe5a9859c767c0254c..0000000000000000000000000000000000000000
--- a/conversations/conv_002985.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.007505011323555,
-      "duration": 5.007505011323555,
-      "start_frame": 0,
-      "duration_frames": 80120,
-      "overlap": false,
-      "utterance_id": "1343-139681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-139681.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.4431892549830945,
-      "end_time": 10.961744565793133,
-      "duration": 5.518555310810038,
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-      "duration_frames": 88296,
-      "overlap": false,
-      "utterance_id": "3650-168637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168637.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.803209487596938,
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-      "overlap": false,
-      "utterance_id": "1343-158781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158781.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.477373045764377,
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-      "overlap": true,
-      "utterance_id": "3650-168637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168637.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 88296
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.730145254750422,
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-      "duration": 6.736813460733342,
-      "start_frame": 347682,
-      "duration_frames": 107789,
-      "overlap": false,
-      "utterance_id": "3650-168646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168646.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.57243596140419,
-      "end_time": 32.0,
-      "duration": 2.4275640385958113,
-      "start_frame": 473158,
-      "duration_frames": 38841,
-      "overlap": false,
-      "utterance_id": "1343-139681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-139681.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 80120
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3650/cough/0015.wav",
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-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 28.486046621350674,
-      "speaker_id": "3650"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002989.json b/conversations/conv_002989.json
deleted file mode 100644
index 4fdba6ab3c0dba35ff35301c38187382a44c058a..0000000000000000000000000000000000000000
--- a/conversations/conv_002989.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.228810223599673,
-      "duration": 4.228810223599673,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3793-33942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-33942.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.953175275181811,
-      "end_time": 10.264363418180094,
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-      "utterance_id": "2790-142824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 0
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-    {
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-      "overlap": true,
-      "utterance_id": "8307-120456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120456.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.351373902876134,
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-      "overlap": false,
-      "utterance_id": "3793-10683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-10683.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.260082768800153,
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-      "duration_frames": 104778,
-      "overlap": true,
-      "utterance_id": "8307-120456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120456.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 66360
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.57305011133318,
-      "end_time": 32.0,
-      "duration": 3.426949888666819,
-      "start_frame": 457168,
-      "duration_frames": 54831,
-      "overlap": false,
-      "utterance_id": "3793-33942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-33942.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 67660
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.988183138291667,
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3793/cough/0066.wav",
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-      "start_time": 4.234853068318598,
-      "speaker_id": "3793"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2790/laugh/0069.wav",
-      "duration": 0.6202141806434107,
-      "start_time": 3.123955281438056,
-      "speaker_id": "2790"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8307/laugh/0004.wav",
-      "duration": 1.32,
-      "start_time": 26.81197916603032,
-      "speaker_id": "8307"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_002993.json b/conversations/conv_002993.json
deleted file mode 100644
index f8b642869e4ee2838ef2e7bce65ef9956591aa00..0000000000000000000000000000000000000000
--- a/conversations/conv_002993.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.323399472960035,
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-      "start_frame": 0,
-      "duration_frames": 85174,
-      "overlap": false,
-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.8412963480832945,
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-      "duration": 5.067228332971579,
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-      "duration_frames": 81075,
-      "overlap": false,
-      "utterance_id": "8786-276749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276749.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.562547369098974,
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-      "start_frame": 185000,
-      "duration_frames": 106906,
-      "overlap": false,
-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.219489008554213,
-      "end_time": 25.216464050028286,
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-      "start_frame": 307511,
-      "duration_frames": 95951,
-      "overlap": false,
-      "utterance_id": "8786-276749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276749.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 81075
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "duration": 4.448112420988304,
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-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 106906
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.84773215113141,
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-      "duration": 1.1522678488685898,
-      "start_frame": 493563,
-      "duration_frames": 18436,
-      "overlap": false,
-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
-      "start_time": 2.1883239140179436
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
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-      "start_time": 8.22859078312208
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
-      "duration": 1.1220516942696728,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8786/laugh/0076.wav",
-      "duration": 1.02,
-      "start_time": 4.719688277751277,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8786/laugh/0051.wav",
-      "duration": 1.08,
-      "start_time": 25.37220216053513,
-      "speaker_id": "8786"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/173/laugh/0032.wav",
-      "duration": 0.6282740331357207,
-      "start_time": 24.566283977830725,
-      "speaker_id": "173"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7555/laugh/0052.wav",
-      "duration": 0.8019653311143494,
-      "start_time": 29.804721550833364,
-      "speaker_id": "7555"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003005.json b/conversations/conv_003005.json
deleted file mode 100644
index 9682d54c0cbbbddd9ee3325dd10b925e387e186f..0000000000000000000000000000000000000000
--- a/conversations/conv_003005.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.241092076400781,
-      "duration": 4.241092076400781,
-      "start_frame": 0,
-      "duration_frames": 67857,
-      "overlap": false,
-      "utterance_id": "245-122647",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122647.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.871245902531463,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-121416.flac |",
-      "real_speaker_id": "2010",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.154212557132915,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122647.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 67857
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.77562326998402,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-147045.flac |",
-      "real_speaker_id": "2010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.148149925161167,
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-      "duration": 4.851850074838833,
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-      "utterance_id": "8591-284445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284445.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8591/laugh/0039.wav",
-      "duration": 1.08,
-      "start_time": 4.2646995454241665,
-      "speaker_id": "8591"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2010/laugh/0040.wav",
-      "duration": 1.16,
-      "start_time": 26.365993019182522,
-      "speaker_id": "2010"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003009.json b/conversations/conv_003009.json
deleted file mode 100644
index a18fb9bfaba6ca0ebce429eb988370fdc6be36e7..0000000000000000000000000000000000000000
--- a/conversations/conv_003009.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.474256122280055,
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-      "overlap": false,
-      "utterance_id": "5653-46266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46266.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.704680630710227,
-      "end_time": 8.722393082870722,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.06021985910022,
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-      "overlap": false,
-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.14985907132212,
-      "end_time": 23.271097682118125,
-      "duration": 6.121238610796007,
-      "start_frame": 274397,
-      "duration_frames": 97939,
-      "overlap": false,
-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 48283
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.84816973173751,
-      "end_time": 28.75590149711035,
-      "duration": 4.907731765372842,
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-      "overlap": false,
-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.324187728740426,
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-      "duration": 2.6758122712595735,
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-      "duration_frames": 42812,
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-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 101654
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/953/laugh/0005.wav",
-      "duration": 1.28,
-      "start_time": 26.418879432153215,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5653/cough/0058.wav",
-      "duration": 1.32,
-      "start_time": 30.62265510144524,
-      "speaker_id": "5653"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003013.json b/conversations/conv_003013.json
deleted file mode 100644
index 89ff809ccdc43fe0cba518199affdea1cb172339..0000000000000000000000000000000000000000
--- a/conversations/conv_003013.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.3427201955917,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.430662039408007,
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-      "overlap": false,
-      "utterance_id": "215-122798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-122798.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.5070296103027445,
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-      "overlap": true,
-      "utterance_id": "17-363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "duration_frames": 88344,
-      "overlap": true,
-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "start_frame": 267962,
-      "duration_frames": 83915,
-      "overlap": false,
-      "utterance_id": "17-362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.813360077191383,
-      "end_time": 28.66892457851418,
-      "duration": 5.855564501322794,
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-      "overlap": false,
-      "utterance_id": "215-127369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-127369.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.512613933171178,
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-      "duration": 2.8301062624205215,
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-      "duration_frames": 45281,
-      "overlap": true,
-      "utterance_id": "17-363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 89357
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
-      "duration": 0.16043083900226757,
-      "start_time": 4.055475472148073
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/17/laugh/0046.wav",
-      "duration": 1.3125387477155774,
-      "start_time": 10.173225949899027,
-      "speaker_id": "17"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/215/cough/0052.wav",
-      "duration": 1.0,
-      "start_time": 21.668602774377675,
-      "speaker_id": "215"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003022.json b/conversations/conv_003022.json
deleted file mode 100644
index b2935564450be291f408c6bec7f57778b9c5d740..0000000000000000000000000000000000000000
--- a/conversations/conv_003022.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.661856476447067,
-      "duration": 5.661856476447067,
-      "start_frame": 0,
-      "duration_frames": 90589,
-      "overlap": false,
-      "utterance_id": "6127-53038",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-53038.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.340015018817245,
-      "end_time": 10.45963582436766,
-      "duration": 4.119620805550416,
-      "start_frame": 101440,
-      "duration_frames": 65913,
-      "overlap": false,
-      "utterance_id": "3989-182402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182402.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.273824744601011,
-      "end_time": 16.483204773428824,
-      "duration": 5.209380028827813,
-      "start_frame": 180381,
-      "duration_frames": 83350,
-      "overlap": false,
-      "utterance_id": "6127-14967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-14967.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.079025942832846,
-      "end_time": 22.511851151601412,
-      "duration": 5.432825208768568,
-      "start_frame": 273264,
-      "duration_frames": 86925,
-      "overlap": false,
-      "utterance_id": "3989-182402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182402.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 65913
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.93087152727722,
-      "end_time": 26.364814914400572,
-      "duration": 3.433943387123353,
-      "start_frame": 366893,
-      "duration_frames": 54943,
-      "overlap": false,
-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.47356957889736,
-      "end_time": 32.0,
-      "duration": 4.5264304211026385,
-      "start_frame": 439577,
-      "duration_frames": 72422,
-      "overlap": false,
-      "utterance_id": "3989-182389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182389.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
-      "duration": 1.7417913832199547,
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/laugh/0004.wav",
-      "duration": 1.0252311294582346,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3989/laugh/0031.wav",
-      "duration": 1.3430223650194475,
-      "start_time": 10.65101926534768,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3989/laugh/0069.wav",
-      "duration": 0.883120750704449,
-      "start_time": 15.947024647659978,
-      "speaker_id": "3989"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/454/laugh/0004.wav",
-      "duration": 1.76,
-      "start_time": 20.940503695976215,
-      "speaker_id": "454"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3989/laugh/0096.wav",
-      "duration": 1.1939608531948789,
-      "start_time": 27.827773550580382,
-      "speaker_id": "3989"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3989/cough/0009.wav",
-      "duration": 0.4955870849718042,
-      "start_time": 31.504412915028198,
-      "speaker_id": "3989"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003025.json b/conversations/conv_003025.json
deleted file mode 100644
index f23fdaa2d261b67cae3ac0e18c106a82a7ff5c39..0000000000000000000000000000000000000000
--- a/conversations/conv_003025.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_003029.json b/conversations/conv_003029.json
deleted file mode 100644
index 2251c971dde4071d5e38f4717f10fd4e82673438..0000000000000000000000000000000000000000
--- a/conversations/conv_003029.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.5058181638061,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8341.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-71407.flac |",
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-      "position_frames": 95398
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-      "utterance_id": "3557-159359",
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-      "utterance_id": "6695-252334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252334.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_003033.json b/conversations/conv_003033.json
deleted file mode 100644
index ac05a5a9769ad76d007df88b857b1f017ded3576..0000000000000000000000000000000000000000
--- a/conversations/conv_003033.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.36947293342597,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43316.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-55211.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0006",
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-    {
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "6000"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6000/cough/0075.wav",
-      "duration": 0.5788644311466016,
-      "start_time": 31.046149585921242,
-      "speaker_id": "6000"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003034.json b/conversations/conv_003034.json
deleted file mode 100644
index 35363a983a977437d797d2973a54d711db84e9d2..0000000000000000000000000000000000000000
--- a/conversations/conv_003034.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
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-      "position_frames": 0
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-    {
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-113769.flac |",
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-      "position_frames": 85731
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-  "background_events": [
-    {
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-      "event_class": "Cat",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/laugh/0091.wav",
-      "duration": 1.2,
-      "start_time": 16.21353187772441,
-      "speaker_id": "8291"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/cough/0060.wav",
-      "duration": 1.4212457110870085,
-      "start_time": 16.23045255570828,
-      "speaker_id": "8291"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003044.json b/conversations/conv_003044.json
deleted file mode 100644
index c3e4b9a04a4c99acb32fb27e179b85806438aeba..0000000000000000000000000000000000000000
--- a/conversations/conv_003044.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.588804721941069,
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-      "overlap": false,
-      "utterance_id": "6904-262305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262305.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "7139-75360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75360.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.01565243964917,
-      "end_time": 19.57079092847562,
-      "duration": 6.555138488826451,
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-      "overlap": false,
-      "utterance_id": "6904-262305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262305.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 89420
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.94508015365209,
-      "end_time": 25.55323623827321,
-      "duration": 5.608156084621122,
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-      "duration_frames": 89730,
-      "overlap": false,
-      "utterance_id": "6904-262291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.82679019476751,
-      "end_time": 29.67867118316408,
-      "duration": 3.8518809883965686,
-      "start_frame": 413228,
-      "duration_frames": 61630,
-      "overlap": false,
-      "utterance_id": "7139-75360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75360.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 91626
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.073565866737276,
-      "end_time": 32.0,
-      "duration": 1.926434133262724,
-      "start_frame": 481177,
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-      "overlap": false,
-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "2997"
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\ No newline at end of file
diff --git a/conversations/conv_003048.json b/conversations/conv_003048.json
deleted file mode 100644
index 7a0f69d7403d1b28303420ab727bef0830ea420d..0000000000000000000000000000000000000000
--- a/conversations/conv_003048.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7828-105171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105171.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 0
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-      "utterance_id": "5660-101884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5660-101884.flac |",
-      "real_speaker_id": "5660",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.98195460695701,
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-      "utterance_id": "8240-283234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-283234.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.97147675085011,
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-      "overlap": false,
-      "utterance_id": "7828-105179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 86842
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.299055445877137,
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-      "duration": 2.700944554122863,
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-      "duration_frames": 43215,
-      "overlap": false,
-      "utterance_id": "8240-283234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-283234.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 65058
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/84654.wav",
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-      "start_time": 31.36367603877366,
-      "speaker_id": "8240"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003049.json b/conversations/conv_003049.json
deleted file mode 100644
index 9d08bba3aa8e6e7b7360494166b37fce4b4f3ad1..0000000000000000000000000000000000000000
--- a/conversations/conv_003049.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.66971356670177,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.72343994843121,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7135-80033.flac |",
-      "real_speaker_id": "7135",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.467389109161795,
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-      "utterance_id": "886-123273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123273.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "position_frames": 85616
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.87986344580598,
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-      "overlap": false,
-      "utterance_id": "886-123273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123273.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 61623
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
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-  "background_events": [
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-  "paralinguistic_events": [
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-    {
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-      "start_time": 24.64799611733888,
-      "speaker_id": "886"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003052.json b/conversations/conv_003052.json
deleted file mode 100644
index c99a638d1f3a05149123ad4aa1019ff8bf0b7759..0000000000000000000000000000000000000000
--- a/conversations/conv_003052.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.7243751257168105,
-      "duration": 6.7243751257168105,
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-      "utterance_id": "6211-66279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-66279.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "1463-134463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134463.flac |",
-      "real_speaker_id": "1463",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6211-66280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-66280.flac |",
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-    {
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-    {
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-      "real_speaker_id": "6211",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_10.wav",
-      "duration": 0.3551020408163265,
-      "start_time": 29.24140461457107
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_2.wav",
-      "duration": 1.5157596371882087,
-      "start_time": 23.98756173711957
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1463/laugh/0041.wav",
-      "duration": 0.880927792460986,
-      "start_time": 11.262322437602695,
-      "speaker_id": "1463"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003063.json b/conversations/conv_003063.json
deleted file mode 100644
index 8f06795f430bd73be92fe2cd2a4fcd105ff44d24..0000000000000000000000000000000000000000
--- a/conversations/conv_003063.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.175416970987353,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.007647580468962,
-      "duration": 6.007647580468962,
-      "start_frame": 0,
-      "duration_frames": 96122,
-      "overlap": false,
-      "utterance_id": "5390-24512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-24512.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.702184174869644,
-      "end_time": 10.94199761933897,
-      "duration": 4.239813444469327,
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-      "utterance_id": "3607-135982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-135982.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.670576286218022,
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-      "duration": 6.475668183055885,
-      "start_frame": 186729,
-      "duration_frames": 103610,
-      "overlap": false,
-      "utterance_id": "5390-24512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-24512.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 96122
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.134460878371527,
-      "end_time": 24.972922825026345,
-      "duration": 5.838461946654817,
-      "start_frame": 306151,
-      "duration_frames": 93415,
-      "overlap": false,
-      "utterance_id": "2545-135235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.444169767569214,
-      "end_time": 31.175416970987353,
-      "duration": 5.731247203418138,
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-      "duration_frames": 91699,
-      "overlap": false,
-      "utterance_id": "5390-24512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-24512.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 199732
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.544673243318286,
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-      "start_frame": 488714,
-      "duration_frames": 9177,
-      "overlap": true,
-      "utterance_id": "3607-135982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-135982.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 67837
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
-      "duration": 0.5431292517006803,
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5390/laugh/0034.wav",
-      "duration": 1.48,
-      "start_time": 29.3264785407869,
-      "speaker_id": "5390"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003064.json b/conversations/conv_003064.json
deleted file mode 100644
index c6445369e5500fb9e16440ffcc3856405c711ba4..0000000000000000000000000000000000000000
--- a/conversations/conv_003064.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.687714768431534,
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-      "overlap": false,
-      "utterance_id": "4111-184447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.4321273496176,
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-      "utterance_id": "1664-137600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "318-124224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.68508399255174,
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-      "overlap": false,
-      "utterance_id": "1664-122623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.099394995438395,
-      "end_time": 22.695475729027258,
-      "duration": 3.596080733588863,
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-      "duration_frames": 57537,
-      "overlap": true,
-      "utterance_id": "318-124224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 104586
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.317956165905592,
-      "end_time": 27.274862745923755,
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-      "overlap": false,
-      "utterance_id": "4111-184448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184448.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.41586154542547,
-      "end_time": 32.0,
-      "duration": 3.5841384545745285,
-      "start_frame": 454653,
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-      "utterance_id": "4111-184447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 59003
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4111/laugh/0117.wav",
-      "duration": 0.9048075459076497,
-      "start_time": 27.357708660537067,
-      "speaker_id": "4111"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003065.json b/conversations/conv_003065.json
deleted file mode 100644
index cf80d4e1c5fd307675edbaa556e05dd1fda92330..0000000000000000000000000000000000000000
--- a/conversations/conv_003065.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2149-7235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-7235.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.683509405649097,
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-      "utterance_id": "4853-27670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-27670.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.469175970859059,
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-      "overlap": true,
-      "utterance_id": "2149-8912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-8912.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.606900257151402,
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-      "duration_frames": 62954,
-      "overlap": false,
-      "utterance_id": "4853-29413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-29413.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2149-7235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-7235.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 92081
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4853-29413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-29413.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 62954
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "duration_frames": 14174,
-      "overlap": false,
-      "utterance_id": "6099-67860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-67860.flac |",
-      "real_speaker_id": "6099",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4853/laugh/0039.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4853/laugh/0015.wav",
-      "duration": 1.24,
-      "start_time": 21.584763686705305,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2149/laugh/0103.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4853/laugh/0026.wav",
-      "duration": 1.52,
-      "start_time": 24.825438217825628,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6099/cough/0027.wav",
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-      "start_time": 31.491816070272158,
-      "speaker_id": "6099"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003068.json b/conversations/conv_003068.json
deleted file mode 100644
index e763a22a0e99c3548570634b1f109e37f86e7891..0000000000000000000000000000000000000000
--- a/conversations/conv_003068.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6415",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6415-111615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 73756
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-27565.flac |",
-      "real_speaker_id": "4321",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "speaker_id": "4321"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003072.json b/conversations/conv_003072.json
deleted file mode 100644
index 08fb5e08015af65f8cdce34f6283fa1cb81a5cd2..0000000000000000000000000000000000000000
--- a/conversations/conv_003072.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4860-13185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4860-13185.flac |",
-      "real_speaker_id": "4860",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.673804797137087,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75360.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.708867399854686,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4860-13185.flac |",
-      "real_speaker_id": "4860",
-      "position_frames": 81252
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "613-121900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-121900.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.84599528814297,
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-      "utterance_id": "4860-13185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4860-13185.flac |",
-      "real_speaker_id": "4860",
-      "position_frames": 162698
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.066112720733084,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-88748.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_003075.json b/conversations/conv_003075.json
deleted file mode 100644
index 2fab09da3640bdcb31aa53680573f652c75d4df6..0000000000000000000000000000000000000000
--- a/conversations/conv_003075.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122150.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
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-      "real_speaker_id": "4915",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6956-76046.flac |",
-      "real_speaker_id": "6956",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4915-113765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-113765.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 97292
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6956-76046.flac |",
-      "real_speaker_id": "6956",
-      "position_frames": 88672
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_003087.json b/conversations/conv_003087.json
deleted file mode 100644
index aab886e1d133ee7bd9c1b5d514c0a93908ed8153..0000000000000000000000000000000000000000
--- a/conversations/conv_003087.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.257057054505154,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "5985-300208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-300208.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "7447",
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-    {
-      "segment_id": "seg0003",
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-      "overlap": true,
-      "utterance_id": "7447-91186",
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_003091.json b/conversations/conv_003091.json
deleted file mode 100644
index a9eab4715be3623a4657f567e93aa7c86001907b..0000000000000000000000000000000000000000
--- a/conversations/conv_003091.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.75590954038279,
-  "num_speakers": 3,
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-      "utterance_id": "5242-35921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2911-7601",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-7601.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 61422
-    }
-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2911/laugh/0092.wav",
-      "duration": 1.0873508141879193,
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 24.031613949633446,
-      "speaker_id": "2911"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003101.json b/conversations/conv_003101.json
deleted file mode 100644
index 98a708e16c087f163b6632da68e57a3e4c552fe6..0000000000000000000000000000000000000000
--- a/conversations/conv_003101.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6798-77736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77736.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 6.305781091222317,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-78622.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "3063-138651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.73594439759203,
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-      "utterance_id": "6798-77737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77737.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 24.07692245693839,
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-      "utterance_id": "3657-78622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-78622.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 83219
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.7183459352640647,
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-      "utterance_id": "6798-77740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77740.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003117.json b/conversations/conv_003117.json
deleted file mode 100644
index 637cce7063da05b2a306d7fac457a94911b72c7a..0000000000000000000000000000000000000000
--- a/conversations/conv_003117.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "2485-151992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-151992.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-138074.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_003120.json b/conversations/conv_003120.json
deleted file mode 100644
index 71d4c74c955e3a4a16b3d0328e5e3d9b29560811..0000000000000000000000000000000000000000
--- a/conversations/conv_003120.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.38277890987441,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121972.flac |",
-      "real_speaker_id": "31",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121972.flac |",
-      "real_speaker_id": "31",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "2401",
-      "position_frames": 52782
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.88798779909556,
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-      "utterance_id": "2093-143271",
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-      "real_speaker_id": "2093",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121971.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
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-      "start_time": 25.82568797152468
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_003121.json b/conversations/conv_003121.json
deleted file mode 100644
index 20b82002a4a874bf0ec096e5eb304d89f0411e7b..0000000000000000000000000000000000000000
--- a/conversations/conv_003121.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "end_time": 6.56642017741846,
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-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.549442565131811,
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-      "utterance_id": "104-129578",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-129578.flac |",
-      "real_speaker_id": "104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "104-132092",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-132092.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-123365.flac |",
-      "real_speaker_id": "104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.995565137423938,
-      "end_time": 32.0,
-      "duration": 2.004434862576062,
-      "start_frame": 479929,
-      "duration_frames": 32070,
-      "overlap": false,
-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 210184
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_5.wav",
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-      "start_time": 3.6196805049587457
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2724/laugh/0018.wav",
-      "duration": 1.4,
-      "start_time": 24.164609569450256,
-      "speaker_id": "2724"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2724/cough/0043.wav",
-      "duration": 1.3767728053176094,
-      "start_time": 28.43611626048597,
-      "speaker_id": "2724"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003126.json b/conversations/conv_003126.json
deleted file mode 100644
index 2a6a4a164832a80639e63c73e363d61d943edea6..0000000000000000000000000000000000000000
--- a/conversations/conv_003126.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.878506488076807,
-      "duration": 6.878506488076807,
-      "start_frame": 0,
-      "duration_frames": 110056,
-      "overlap": false,
-      "utterance_id": "1784-142294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1784-142294.flac |",
-      "real_speaker_id": "1784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.052618610071826,
-      "end_time": 13.07259159488739,
-      "duration": 6.019972984815564,
-      "start_frame": 112841,
-      "duration_frames": 96319,
-      "overlap": false,
-      "utterance_id": "7705-101578",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101578.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.362561976640333,
-      "end_time": 19.384887540847636,
-      "duration": 6.022325564207302,
-      "start_frame": 213800,
-      "duration_frames": 96357,
-      "overlap": true,
-      "utterance_id": "1784-142294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1784-142294.flac |",
-      "real_speaker_id": "1784",
-      "position_frames": 110056
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.77088956048575,
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-      "duration": 4.151028087737512,
-      "start_frame": 332334,
-      "duration_frames": 66416,
-      "overlap": false,
-      "utterance_id": "7705-101578",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101578.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 96319
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.052513621978363,
-      "end_time": 30.56640686602988,
-      "duration": 4.513893244051517,
-      "start_frame": 416840,
-      "duration_frames": 72222,
-      "overlap": false,
-      "utterance_id": "1784-142294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1784-142294.flac |",
-      "real_speaker_id": "1784",
-      "position_frames": 206413
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.610090126360205,
-      "end_time": 32.0,
-      "duration": 0.38990987363979457,
-      "start_frame": 505761,
-      "duration_frames": 6238,
-      "overlap": false,
-      "utterance_id": "7705-101580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101580.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
-      "duration": 16.848412698412698,
-      "start_time": 13.926419265637179
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_0.wav",
-      "duration": 0.2146485260770975,
-      "start_time": 11.366231341265697
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1784/cough/0045.wav",
-      "duration": 0.617357043291976,
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-      "speaker_id": "1784"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1784/laugh/0080.wav",
-      "duration": 1.2055801935849186,
-      "start_time": 30.599934243941213,
-      "speaker_id": "1784"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1784/cough/0002.wav",
-      "duration": 0.4218367930100595,
-      "start_time": 25.61721911671513,
-      "speaker_id": "1784"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7705/laugh/0079.wav",
-      "duration": 1.1494207452528722,
-      "start_time": 30.850579254747128,
-      "speaker_id": "7705"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003130.json b/conversations/conv_003130.json
deleted file mode 100644
index c096a5305eac0d16e62a7b66450c11167155ff22..0000000000000000000000000000000000000000
--- a/conversations/conv_003130.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.971127544792695,
-      "duration": 4.971127544792695,
-      "start_frame": 0,
-      "duration_frames": 79538,
-      "overlap": false,
-      "utterance_id": "1241-121103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1241-121103.flac |",
-      "real_speaker_id": "1241",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.18017960373619,
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-      "overlap": false,
-      "utterance_id": "7447-91186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91186.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.907853022865014,
-      "end_time": 17.162466325298027,
-      "duration": 4.254613302433011,
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-      "duration_frames": 68073,
-      "overlap": false,
-      "utterance_id": "3185-163507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163507.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.00074021245411,
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-      "duration": 5.400670722327403,
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-      "duration_frames": 86410,
-      "overlap": true,
-      "utterance_id": "1241-121103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1241-121103.flac |",
-      "real_speaker_id": "1241",
-      "position_frames": 79538
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.14121205277561,
-      "end_time": 27.81278444043916,
-      "duration": 4.67157238766355,
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-      "duration_frames": 74745,
-      "overlap": true,
-      "utterance_id": "7447-91186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91186.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 93710
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.703800486469234,
-      "end_time": 32.0,
-      "duration": 2.296199513530766,
-      "start_frame": 475260,
-      "duration_frames": 36739,
-      "overlap": false,
-      "utterance_id": "7447-91187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91187.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
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-      "start_time": 29.57946722065623
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1241/laugh/0043.wav",
-      "duration": 0.8778056233868468,
-      "start_time": 0.09907081959756307,
-      "speaker_id": "1241"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1241/cough/0109.wav",
-      "duration": 1.3665703054158411,
-      "start_time": 5.130559335470697,
-      "speaker_id": "1241"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3185/laugh/0032.wav",
-      "duration": 0.8359847796192736,
-      "start_time": 11.88960985748637,
-      "speaker_id": "3185"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003137.json b/conversations/conv_003137.json
deleted file mode 100644
index ccb16295386acebf28a8a007deb10e9c7f566304..0000000000000000000000000000000000000000
--- a/conversations/conv_003137.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.759664925144671,
-      "duration": 6.759664925144671,
-      "start_frame": 0,
-      "duration_frames": 108154,
-      "overlap": false,
-      "utterance_id": "8169-118200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.144658513099762,
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-      "duration_frames": 83424,
-      "overlap": true,
-      "utterance_id": "2909-81524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-81524.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.2436026801942,
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-      "overlap": false,
-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.968150258585034,
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-      "duration": 3.6755595499060023,
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-      "duration_frames": 58808,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 74787
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.55162879321651,
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-      "utterance_id": "8169-118202",
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-      "real_speaker_id": "8169",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.71502485090774,
-      "end_time": 32.0,
-      "duration": 4.284975149092261,
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-      "duration_frames": 68559,
-      "overlap": false,
-      "utterance_id": "8169-118202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118202.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 56488
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_4.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8169/laugh/0059.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/679/cough/0019.wav",
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-      "start_time": 17.904876486080283,
-      "speaker_id": "679"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8169/laugh/0033.wav",
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-      "start_time": 26.461765759557338,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8169/cough/0058.wav",
-      "duration": 1.16,
-      "start_time": 30.428239043915987,
-      "speaker_id": "8169"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003140.json b/conversations/conv_003140.json
deleted file mode 100644
index 3da9adb80f5cffdf5a210b2281d4864ddc8737b6..0000000000000000000000000000000000000000
--- a/conversations/conv_003140.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.56458155070255,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.9888074919392635,
-      "duration": 3.9888074919392635,
-      "start_frame": 0,
-      "duration_frames": 63820,
-      "overlap": false,
-      "utterance_id": "1756-134820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134820.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.3549155964266,
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-      "real_speaker_id": "8176",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1756-134819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134819.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.78452510639403,
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-      "duration": 6.496710464954022,
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-      "duration_frames": 103947,
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-      "utterance_id": "6804-79287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79287.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.93298098468867,
-      "end_time": 26.864813202087895,
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-      "utterance_id": "8176-115047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8176-115047.flac |",
-      "real_speaker_id": "8176",
-      "position_frames": 58269
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1756-134820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134820.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 63820
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 10.0637200474152
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
-      "duration": 0.6496145124716554,
-      "start_time": 7.396500178875452
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6804/cough/0080.wav",
-      "duration": 1.3,
-      "start_time": 16.997754321879874,
-      "speaker_id": "6804"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003156.json b/conversations/conv_003156.json
deleted file mode 100644
index e10a3051c5a48cbfea6b81ef241897a1c9ffd6db..0000000000000000000000000000000000000000
--- a/conversations/conv_003156.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.268915077589036,
-      "duration": 3.268915077589036,
-      "start_frame": 0,
-      "duration_frames": 52302,
-      "overlap": false,
-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9337957127617464,
-      "end_time": 10.506290254846867,
-      "duration": 6.5724945420851215,
-      "start_frame": 62940,
-      "duration_frames": 105159,
-      "overlap": false,
-      "utterance_id": "4546-16781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.310967613017176,
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-      "overlap": false,
-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 52302
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.667299343317755,
-      "end_time": 23.669827358837594,
-      "duration": 6.0025280155198395,
-      "start_frame": 282676,
-      "duration_frames": 96040,
-      "overlap": false,
-      "utterance_id": "4546-16813",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16813.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.712883046218135,
-      "end_time": 29.24941698721742,
-      "duration": 4.536533940999284,
-      "start_frame": 395406,
-      "duration_frames": 72584,
-      "overlap": false,
-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 147542
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.9031780840684,
-      "end_time": 32.0,
-      "duration": 2.0968219159315993,
-      "start_frame": 478450,
-      "duration_frames": 33549,
-      "overlap": false,
-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 220126
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_15.wav",
-      "duration": 0.5719954648526077,
-      "start_time": 14.009553393492551
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4546/laugh/0107.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7949/laugh/0065.wav",
-      "duration": 0.5444980707366511,
-      "start_time": 29.543094638104836,
-      "speaker_id": "7949"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7949/laugh/0006.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.1212529445365726,
-      "start_time": 29.97766737037219,
-      "speaker_id": "7949"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003160.json b/conversations/conv_003160.json
deleted file mode 100644
index d996ac70bd4d276ff4d274b337ecc28c2f39e30f..0000000000000000000000000000000000000000
--- a/conversations/conv_003160.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.537389643728723,
-      "duration": 5.537389643728723,
-      "start_frame": 0,
-      "duration_frames": 88598,
-      "overlap": false,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.970523683113456,
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-      "utterance_id": "4699-12472",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
-      "real_speaker_id": "4699",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 12.23155895951567,
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-      "overlap": false,
-      "utterance_id": "2652-157644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.763268616621954,
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-      "overlap": false,
-      "utterance_id": "4699-12472",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
-      "real_speaker_id": "4699",
-      "position_frames": 84593
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.813087714869845,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 86608
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.094517359572134,
-      "end_time": 32.0,
-      "duration": 2.9054826404278664,
-      "start_frame": 465512,
-      "duration_frames": 46487,
-      "overlap": false,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 88598
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4699/laugh/0004.wav",
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-      "start_time": 9.585112771715782,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2652/laugh/0027.wav",
-      "duration": 1.111847523446206,
-      "start_time": 17.80383165940452,
-      "speaker_id": "2652"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2652/laugh/0052.wav",
-      "duration": 0.5196034381555461,
-      "start_time": 28.226034706417643,
-      "speaker_id": "2652"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7096/laugh/0066.wav",
-      "duration": 1.40639680861687,
-      "start_time": 30.59360319138313,
-      "speaker_id": "7096"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003167.json b/conversations/conv_003167.json
deleted file mode 100644
index 194eeb9f09b2206d4e30374c3026bbfa2b76c712..0000000000000000000000000000000000000000
--- a/conversations/conv_003167.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.006009723240716,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.876019513930499,
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-      "utterance_id": "6081-41997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-41997.flac |",
-      "real_speaker_id": "6081",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 69736
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-    {
-      "segment_id": "seg0003",
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-      "duration": 4.739311842219935,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 172575
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.870775507482453,
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-      "utterance_id": "6081-41998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-41998.flac |",
-      "real_speaker_id": "6081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.31357797189108,
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-      "duration_frames": 59078,
-      "overlap": true,
-      "utterance_id": "6081-41997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-41997.flac |",
-      "real_speaker_id": "6081",
-      "position_frames": 80795
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.267021784513787,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8632/cough/0001.wav",
-      "duration": 0.4924416112447165,
-      "start_time": 0,
-      "speaker_id": "8632"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8632/cough/0035.wav",
-      "duration": 0.5949844234225456,
-      "start_time": 9.884244638351586,
-      "speaker_id": "8632"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003171.json b/conversations/conv_003171.json
deleted file mode 100644
index 3f0931ef5c4657e2dc5b9fd326285b73862e2391..0000000000000000000000000000000000000000
--- a/conversations/conv_003171.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.77160815532808,
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-      "duration_frames": 76345,
-      "overlap": false,
-      "utterance_id": "6735-284431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-284431.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.880925586577083,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 101391
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6735-96163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-96163.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7245/laugh/0015.wav",
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-      "speaker_id": "7245"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6735/laugh/0017.wav",
-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "6735"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "6735"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_003176.json b/conversations/conv_003176.json
deleted file mode 100644
index 694b34d236e1d5990e21b7ffe18d4b7b87785bfa..0000000000000000000000000000000000000000
--- a/conversations/conv_003176.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1353-121397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-121397.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.108774242293458,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1353-134827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-134827.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-122456.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15666.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "1353-134827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-134827.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "speaker_id": "1353"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003183.json b/conversations/conv_003183.json
deleted file mode 100644
index c8bc3f979f6f342c20152c5ba258183451ae5527..0000000000000000000000000000000000000000
--- a/conversations/conv_003183.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "5060-15562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
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-      "real_speaker_id": "5622",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 145298
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7520-258954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 66364
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "duration": 1.585971873855783,
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-      "utterance_id": "5060-15556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15556.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003188.json b/conversations/conv_003188.json
deleted file mode 100644
index 36be33d6740d18e07c76caf7b6cd8e6ddd063c3c..0000000000000000000000000000000000000000
--- a/conversations/conv_003188.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2374-155651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2374/laugh/0014.wav",
-      "duration": 1.32,
-      "start_time": 6.7344532267240576,
-      "speaker_id": "2374"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2374/cough/0018.wav",
-      "duration": 0.5986000276319872,
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-      "speaker_id": "2374"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2374/cough/0094.wav",
-      "duration": 1.0253537035903804,
-      "start_time": 15.536348213868393,
-      "speaker_id": "2374"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003195.json b/conversations/conv_003195.json
deleted file mode 100644
index e56732773ba8891faebb24e52d44c449826f8aff..0000000000000000000000000000000000000000
--- a/conversations/conv_003195.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.2219615798588315,
-      "duration": 5.2219615798588315,
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-      "overlap": false,
-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.063709731023312,
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-      "utterance_id": "1263-139804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-139804.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.70554969610728,
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-      "overlap": false,
-      "utterance_id": "2104-78240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78240.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.17045054645763,
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-      "duration_frames": 69552,
-      "overlap": false,
-      "utterance_id": "2104-78253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78253.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.266074091111545,
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-      "start_frame": 324257,
-      "duration_frames": 95680,
-      "overlap": false,
-      "utterance_id": "1263-141777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-141777.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.174939989196254,
-      "end_time": 32.0,
-      "duration": 4.825060010803746,
-      "start_frame": 434799,
-      "duration_frames": 77200,
-      "overlap": false,
-      "utterance_id": "7688-112187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-112187.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 20.93769402956659,
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_19.wav",
-      "duration": 0.6158956916099774,
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1263/laugh/0082.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2104/laugh/0022.wav",
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-      "speaker_id": "2104"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2104/cough/0070.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 26.442937964701766,
-      "speaker_id": "1263"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7688/cough/0014.wav",
-      "duration": 0.7118966503626543,
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-      "speaker_id": "7688"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003199.json b/conversations/conv_003199.json
deleted file mode 100644
index 675225ebffd268c6dd27c537f2fb3e17260e9537..0000000000000000000000000000000000000000
--- a/conversations/conv_003199.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.542733674626156,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 95092
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.02341867672992,
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-      "utterance_id": "7618-102367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102367.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.745978740967274,
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-      "duration": 3.7493517506155696,
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-      "overlap": true,
-      "utterance_id": "7618-102367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102367.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 76059
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.367573729613767,
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-      "duration_frames": 67226,
-      "overlap": false,
-      "utterance_id": "6138-93188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.7164892486545,
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-      "duration_frames": 93219,
-      "overlap": false,
-      "utterance_id": "7618-102372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102372.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7618/cough/0016.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6138/laugh/0002.wav",
-      "duration": 1.2,
-      "start_time": 23.055461295968122,
-      "speaker_id": "6138"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003204.json b/conversations/conv_003204.json
deleted file mode 100644
index 5dc57c348572d12b57ba35b1f51a941eafb56e15..0000000000000000000000000000000000000000
--- a/conversations/conv_003204.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1239-139609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1239-139609.flac |",
-      "real_speaker_id": "1239",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131232.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7700-92925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3240-131231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.969663804919318,
-      "end_time": 24.48406471087543,
-      "duration": 4.51440090595611,
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-      "overlap": false,
-      "utterance_id": "7700-92925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
-      "real_speaker_id": "7700",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 6.335354699753427,
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-      "utterance_id": "7700-92919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92919.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7700/cough/0071.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003208.json b/conversations/conv_003208.json
deleted file mode 100644
index 1c56d2d18d045e278b151e758842b224a8e97be6..0000000000000000000000000000000000000000
--- a/conversations/conv_003208.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "2893-139322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139322.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.726628587770625,
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-      "utterance_id": "3380-64300",
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-      "real_speaker_id": "3380",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2992-164100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164100.flac |",
-      "real_speaker_id": "2992",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
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-      "utterance_id": "2992-164101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164101.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "duration": 1.0,
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-      "speaker_id": "3380"
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-      "event_class": "cough",
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-      "speaker_id": "2893"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "2992"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2992/cough/0039.wav",
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-      "start_time": 29.969876272642992,
-      "speaker_id": "2992"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003212.json b/conversations/conv_003212.json
deleted file mode 100644
index 5440a6e8b7bafefe3a01247234523fd434c4bc66..0000000000000000000000000000000000000000
--- a/conversations/conv_003212.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.16077749259113,
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-      "duration_frames": 66572,
-      "overlap": false,
-      "utterance_id": "868-131295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131295.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.550927118200126,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26951.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.738540509442025,
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-      "duration_frames": 61918,
-      "overlap": false,
-      "utterance_id": "5115-26951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26951.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 72359
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.553954297288575,
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-      "duration": 5.120576807891749,
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-      "duration_frames": 81929,
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-      "utterance_id": "5115-26951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26951.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 134277
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.02870578657369,
-      "end_time": 23.78428020698372,
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-      "utterance_id": "868-131294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131294.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.975544900458445,
-      "end_time": 28.64175792234341,
-      "duration": 4.666213021884965,
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-      "overlap": false,
-      "utterance_id": "5115-26951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26951.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 216206
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.189838696899997,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131294.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 60089
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-  "background_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5115/laugh/0095.wav",
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\ No newline at end of file
diff --git a/conversations/conv_003219.json b/conversations/conv_003219.json
deleted file mode 100644
index 9ef82224cf2de2cf068aaa7ef6b9e0c7fd48956b..0000000000000000000000000000000000000000
--- a/conversations/conv_003219.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.64741285408392,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.98122620215635,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 65793
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.392143935603915,
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-      "utterance_id": "6181-216552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 138844
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4420/laugh/0000.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003224.json b/conversations/conv_003224.json
deleted file mode 100644
index c22bdc34420b26b9094c07a02895ce0cdd7d97b4..0000000000000000000000000000000000000000
--- a/conversations/conv_003224.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-274728.flac |",
-      "real_speaker_id": "5019",
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-      "real_speaker_id": "3238",
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-      "segment_id": "seg0003",
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-      "utterance_id": "4592-26872",
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-      "real_speaker_id": "4592",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-44339.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 94924
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_003225.json b/conversations/conv_003225.json
deleted file mode 100644
index 1e8ee4d969c9821b084bb0a34a2527ca12994f6a..0000000000000000000000000000000000000000
--- a/conversations/conv_003225.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8095-274348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274348.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.008957660996006,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274348.flac |",
-      "real_speaker_id": "8095",
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-      "utterance_id": "3977-185457",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185457.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-87547.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "8095-274345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274345.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 110586
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "event_class": "cough",
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-      "start_time": 28.403307888584948,
-      "speaker_id": "8095"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003228.json b/conversations/conv_003228.json
deleted file mode 100644
index 2d818381ac06736cf0e27d6add821df1020ea60a..0000000000000000000000000000000000000000
--- a/conversations/conv_003228.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "7981-112057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112057.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
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-      "start_time": 4.84801883062673,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61741.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
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-      "start_time": 10.180013415220689,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157859.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 14.855347584520388,
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-      "utterance_id": "7981-112061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.199653117051497,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 82010
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.107755746268502,
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-      "utterance_id": "2473-155521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-155521.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.483934934477638,
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-      "duration": 0.516065065522362,
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-      "utterance_id": "6233-61742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61742.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_003232.json b/conversations/conv_003232.json
deleted file mode 100644
index 216667eb4651f397aaa2994b508a40d0a0b2fa21..0000000000000000000000000000000000000000
--- a/conversations/conv_003232.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-7587.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.752387453802811,
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-      "real_speaker_id": "2988",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.779855636825225,
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-      "real_speaker_id": "1773",
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-      "real_speaker_id": "2988",
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-      "event_class": "Blender",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003245.json b/conversations/conv_003245.json
deleted file mode 100644
index ed823177754e891bd0497dd9896b32248b315d8b..0000000000000000000000000000000000000000
--- a/conversations/conv_003245.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8095-274346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274346.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7874-110243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
-      "real_speaker_id": "7874",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
-      "real_speaker_id": "7874",
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.86592550622386,
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-      "utterance_id": "7874-110243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
-      "real_speaker_id": "7874",
-      "position_frames": 172214
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_003249.json b/conversations/conv_003249.json
deleted file mode 100644
index 867bf1b304081ea8131e24ab6e5b8a9c5e0b126b..0000000000000000000000000000000000000000
--- a/conversations/conv_003249.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.396964686639183,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "end_time": 5.289771422882666,
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-      "utterance_id": "5682-32876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32876.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "2769",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 104544
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.910678600634846,
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-      "utterance_id": "2769-176256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2769-176256.flac |",
-      "real_speaker_id": "2769",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "duration": 1.16,
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-      "speaker_id": "2769"
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "2769"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003253.json b/conversations/conv_003253.json
deleted file mode 100644
index 3741e195d918cd1f49d7553956eedf142c7ed449..0000000000000000000000000000000000000000
--- a/conversations/conv_003253.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.436556018410847,
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-      "overlap": false,
-      "utterance_id": "5733-55091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55091.flac |",
-      "real_speaker_id": "5733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.123123181950054,
-      "end_time": 8.40311362663329,
-      "duration": 3.279990444683237,
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-      "utterance_id": "8262-279161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55099.flac |",
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-      "real_speaker_id": "8164",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55099.flac |",
-      "real_speaker_id": "5733",
-      "position_frames": 91881
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.81198032097506,
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-      "utterance_id": "8262-279161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
-      "position_frames": 52479
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003258.json b/conversations/conv_003258.json
deleted file mode 100644
index a88efa857798f80679742389b7908a5e183efad9..0000000000000000000000000000000000000000
--- a/conversations/conv_003258.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6121-8686.flac |",
-      "real_speaker_id": "6121",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "2607-177740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177740.flac |",
-      "real_speaker_id": "2607",
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-      "real_speaker_id": "2607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2607-177749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177749.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.06,
-      "start_time": 10.138746591237611,
-      "speaker_id": "2607"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003262.json b/conversations/conv_003262.json
deleted file mode 100644
index 7ad6ac5314f7ec985efa16ffe33e2f947478aa5f..0000000000000000000000000000000000000000
--- a/conversations/conv_003262.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1079-128631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1079-128631.flac |",
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-    {
-      "segment_id": "seg0006",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1079/cough/0103.wav",
-      "duration": 0.96,
-      "start_time": 24.339404012204298,
-      "speaker_id": "1079"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003265.json b/conversations/conv_003265.json
deleted file mode 100644
index 3155515960fb246e091013e1071b4b8779982e37..0000000000000000000000000000000000000000
--- a/conversations/conv_003265.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5693221206021155,
-      "duration": 3.5693221206021155,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.790363320991083,
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-      "utterance_id": "8296-266250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-266250.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.451008817046795,
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-      "overlap": false,
-      "utterance_id": "8296-279865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-279865.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.755574871561556,
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-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 57109
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.96552470269475,
-      "end_time": 28.056596002685193,
-      "duration": 6.091071299990443,
-      "start_frame": 351448,
-      "duration_frames": 97457,
-      "overlap": false,
-      "utterance_id": "56-1730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1730.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.255855930834965,
-      "end_time": 32.0,
-      "duration": 3.744144069165035,
-      "start_frame": 452093,
-      "duration_frames": 59906,
-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 122860
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-      "start_time": 6.736246133866603
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8296/laugh/0096.wav",
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-      "start_time": 17.776525065101684,
-      "speaker_id": "8296"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8296/cough/0078.wav",
-      "duration": 0.92,
-      "start_time": 10.47229063988738,
-      "speaker_id": "8296"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003269.json b/conversations/conv_003269.json
deleted file mode 100644
index 245e6f64628b052caf520f6d024e7ee038dbdb5e..0000000000000000000000000000000000000000
--- a/conversations/conv_003269.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.379697346392424,
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-      "start_frame": 0,
-      "duration_frames": 54075,
-      "overlap": false,
-      "utterance_id": "2201-7371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2201-7371.flac |",
-      "real_speaker_id": "2201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 2.9891895192790363,
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-      "duration": 3.812239373365471,
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-      "duration_frames": 60995,
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-      "utterance_id": "5655-46267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46267.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.071509812512652,
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-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.415679596504825,
-      "end_time": 18.849889237147273,
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-      "overlap": false,
-      "utterance_id": "5655-46267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46267.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 60995
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.65169631974926,
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-      "duration": 3.5476831132997684,
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-      "duration_frames": 56762,
-      "overlap": false,
-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 96547
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.890610059760107,
-      "end_time": 26.995197953871834,
-      "duration": 4.104587894111727,
-      "start_frame": 366249,
-      "duration_frames": 65673,
-      "overlap": true,
-      "utterance_id": "5655-46267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46267.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 131942
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.343408842645907,
-      "end_time": 32.0,
-      "duration": 3.656591157354093,
-      "start_frame": 453494,
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-      "overlap": false,
-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 153309
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
-      "duration": 1.586912202098954,
-      "start_time": 7.628274060904706
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
-      "duration": 2.236848072562358,
-      "start_time": 20.47503756135436
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5655/cough/0068.wav",
-      "duration": 0.8202241563034669,
-      "start_time": 27.147138703172903,
-      "speaker_id": "5655"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7145/laugh/0069.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "7145"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003272.json b/conversations/conv_003272.json
deleted file mode 100644
index c0f0fbd2a5b5495647e3010bd21981a7be429c45..0000000000000000000000000000000000000000
--- a/conversations/conv_003272.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.649413722266081,
-      "duration": 5.649413722266081,
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-      "overlap": false,
-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.604107626146508,
-      "end_time": 11.833578285368427,
-      "duration": 6.229470659221919,
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-      "overlap": true,
-      "utterance_id": "52-121057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.074499639749583,
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-      "overlap": false,
-      "utterance_id": "2067-143535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.97247194691725,
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-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 90390
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.393149748079406,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 48159
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.20151473587498,
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-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 152039
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.31526226749383,
-      "end_time": 32.0,
-      "duration": 0.6847377325061714,
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-      "duration_frames": 10955,
-      "overlap": false,
-      "utterance_id": "2067-143535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 126655
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5445/laugh/0054.wav",
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-      "start_time": 0,
-      "speaker_id": "5445"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/52/laugh/0003.wav",
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-      "start_time": 12.107943623640264,
-      "speaker_id": "52"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2067/laugh/0099.wav",
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-      "speaker_id": "2067"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2067/cough/0044.wav",
-      "duration": 1.04,
-      "start_time": 16.220286959204575,
-      "speaker_id": "2067"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003273.json b/conversations/conv_003273.json
deleted file mode 100644
index 904ef21368189a43e71695ec548ae125cbafe92c..0000000000000000000000000000000000000000
--- a/conversations/conv_003273.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.28823735098456,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8095",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.847132697989064,
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-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "utterance_id": "8095-274345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274345.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 89782
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6828/laugh/0025.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6395/laugh/0105.wav",
-      "duration": 1.24,
-      "start_time": 22.259192614342698,
-      "speaker_id": "6395"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003286.json b/conversations/conv_003286.json
deleted file mode 100644
index 4dc6adcb759700871ae656c9b7072ad6cbc865c4..0000000000000000000000000000000000000000
--- a/conversations/conv_003286.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.34723449555066,
-      "duration": 6.34723449555066,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.688768364312437,
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-      "duration_frames": 59000,
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-      "utterance_id": "2356-154907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.88012404142031,
-      "end_time": 17.271561705501675,
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-      "overlap": false,
-      "utterance_id": "2437-153219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-153219.flac |",
-      "real_speaker_id": "2437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.057226035221316,
-      "end_time": 21.220036491950253,
-      "duration": 3.162810456728936,
-      "start_frame": 288915,
-      "duration_frames": 50604,
-      "overlap": false,
-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 101555
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.88247163946371,
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-      "duration": 6.17515876749669,
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-      "duration_frames": 98802,
-      "overlap": true,
-      "utterance_id": "2356-154907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 59000
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.940732411213794,
-      "end_time": 32.0,
-      "duration": 4.059267588786206,
-      "start_frame": 447051,
-      "duration_frames": 64948,
-      "overlap": false,
-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 152159
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3053/laugh/0091.wav",
-      "duration": 1.16,
-      "start_time": 18.602848908623823,
-      "speaker_id": "3053"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 27.236706364436355,
-      "speaker_id": "2356"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003290.json b/conversations/conv_003290.json
deleted file mode 100644
index 3b69d1c3918fe35d7a2d43f46de27dc585ce80f2..0000000000000000000000000000000000000000
--- a/conversations/conv_003290.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.252186059707704,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6954-76168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76168.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.738108052939678,
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-      "utterance_id": "8195-117382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.578914270252987,
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-      "overlap": false,
-      "utterance_id": "6009-57639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57639.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.521350743939863,
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-      "duration": 4.601937920636923,
-      "start_frame": 312341,
-      "duration_frames": 73631,
-      "overlap": false,
-      "utterance_id": "8195-117382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 111300
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.87281608532283,
-      "end_time": 31.252186059707704,
-      "duration": 6.37936997438487,
-      "start_frame": 397965,
-      "duration_frames": 102069,
-      "overlap": false,
-      "utterance_id": "6009-57639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57639.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 68507
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "start_time": 15.92776520140414
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "duration": 1.12,
-      "start_time": 18.39239893397827,
-      "speaker_id": "8195"
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "6009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003300.json b/conversations/conv_003300.json
deleted file mode 100644
index 5af681bb3d872fb862e8e8ccf3df378d43cf5463..0000000000000000000000000000000000000000
--- a/conversations/conv_003300.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "duration": 4.40758703242639,
-      "start_frame": 0,
-      "duration_frames": 70521,
-      "overlap": false,
-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.928529528240814,
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-      "overlap": false,
-      "utterance_id": "1826-139361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1826-139361.flac |",
-      "real_speaker_id": "1826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "2688-144986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144986.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1826-139361.flac |",
-      "real_speaker_id": "1826",
-      "position_frames": 66122
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.3104981923975,
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-      "real_speaker_id": "2688",
-      "position_frames": 70521
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.684071242966084,
-      "end_time": 32.0,
-      "duration": 3.315928757033916,
-      "start_frame": 458945,
-      "duration_frames": 53054,
-      "overlap": false,
-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 180085
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1826/cough/0055.wav",
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-      "start_time": 18.37438988726742,
-      "speaker_id": "1826"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2688/laugh/0005.wav",
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-    {
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-      "start_time": 30.96,
-      "speaker_id": "2688"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003316.json b/conversations/conv_003316.json
deleted file mode 100644
index 3eea93aa9c15d620aae2db164bcc0294056f14f2..0000000000000000000000000000000000000000
--- a/conversations/conv_003316.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.866384176382865,
-      "duration": 5.866384176382865,
-      "start_frame": 0,
-      "duration_frames": 93862,
-      "overlap": false,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.329599735404176,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47240.flac |",
-      "real_speaker_id": "5628",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 93862
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.364121314774515,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47240.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47240.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_003320.json b/conversations/conv_003320.json
deleted file mode 100644
index 83073012bff660e9798881617068a4ed74c2c9f7..0000000000000000000000000000000000000000
--- a/conversations/conv_003320.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "6687-119383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119383.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119383.flac |",
-      "real_speaker_id": "6687",
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-      "utterance_id": "6687-119384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119384.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 21.414754481616608,
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-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 89196
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.952454607306358,
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-      "utterance_id": "6687-119386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119386.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119384.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_003327.json b/conversations/conv_003327.json
deleted file mode 100644
index 7195ca690fc54a67921ce32673a51eb4ebb046a1..0000000000000000000000000000000000000000
--- a/conversations/conv_003327.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.379454156531413,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287358.flac |",
-      "real_speaker_id": "8498",
-      "position_frames": 0
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-      "real_speaker_id": "7307",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-92008.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003336.json b/conversations/conv_003336.json
deleted file mode 100644
index 27ca60334d4424d518c1318bd1edf614cfb4658e..0000000000000000000000000000000000000000
--- a/conversations/conv_003336.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258292.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_003337.json b/conversations/conv_003337.json
deleted file mode 100644
index 150f2dac428983161477c398b4fd2f04a1f87f09..0000000000000000000000000000000000000000
--- a/conversations/conv_003337.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "speaker_id": "3911"
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-}
\ No newline at end of file
diff --git a/conversations/conv_003341.json b/conversations/conv_003341.json
deleted file mode 100644
index 3e61ae41e32ad2fe26aa617706a9a877f4789ada..0000000000000000000000000000000000000000
--- a/conversations/conv_003341.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-71320.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-55202.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 18.911117288454545,
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-      "utterance_id": "6497-234100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234100.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.43149500681087,
-      "end_time": 30.477092930683167,
-      "duration": 4.045597923872297,
-      "start_frame": 422903,
-      "duration_frames": 64729,
-      "overlap": false,
-      "utterance_id": "329-861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-861.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.909445739678166,
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-      "duration": 1.0905542603218343,
-      "start_frame": 494551,
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-      "utterance_id": "329-861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-861.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 64729
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-      "event_class": "laugh",
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-      "duration": 1.12,
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-}
\ No newline at end of file
diff --git a/conversations/conv_003357.json b/conversations/conv_003357.json
deleted file mode 100644
index 76381278278d7f4d6d8a48800649c2b4d1001768..0000000000000000000000000000000000000000
--- a/conversations/conv_003357.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.414179955376568,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1298-142236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-142236.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-142236.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 54229
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-      "segment_id": "seg0003",
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-      "utterance_id": "6368-39664",
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-      "real_speaker_id": "6368",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.128926300881687,
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-      "utterance_id": "1298-142233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-142233.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.966548808659475,
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-      "utterance_id": "6574-120583",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-120583.flac |",
-      "real_speaker_id": "6574",
-      "position_frames": 99588
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-    {
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "6574"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003361.json b/conversations/conv_003361.json
deleted file mode 100644
index a584848f0487ee05860aa1bced429d3da20e957e..0000000000000000000000000000000000000000
--- a/conversations/conv_003361.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "4788-94904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-94904.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "2273-152357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2273-152357.flac |",
-      "real_speaker_id": "2273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.606917172025797,
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-      "utterance_id": "968-122544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 53270
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2273-152363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2273-152363.flac |",
-      "real_speaker_id": "2273",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-294466.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "start_time": 31.141079478026278,
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-      "utterance_id": "2273-152357",
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-      "real_speaker_id": "2273",
-      "position_frames": 86312
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-  ],
-  "background_events": [
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-    {
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2273/laugh/0057.wav",
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-      "start_time": 30.68,
-      "speaker_id": "2273"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2273/cough/0005.wav",
-      "duration": 1.08,
-      "start_time": 30.041862412094066,
-      "speaker_id": "2273"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003377.json b/conversations/conv_003377.json
deleted file mode 100644
index 826e28dc36e9317eb184ac6fe501c3f79980c084..0000000000000000000000000000000000000000
--- a/conversations/conv_003377.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6690-73073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73073.flac |",
-      "real_speaker_id": "6690",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73073.flac |",
-      "real_speaker_id": "6690",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73073.flac |",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1867/laugh/0002.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003382.json b/conversations/conv_003382.json
deleted file mode 100644
index be02cd5784d09f0df3cf2379aed6a73693a41d2f..0000000000000000000000000000000000000000
--- a/conversations/conv_003382.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.227939571425694,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-155990.flac |",
-      "real_speaker_id": "233",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-155990.flac |",
-      "real_speaker_id": "233",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5868-66166.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_003394.json b/conversations/conv_003394.json
deleted file mode 100644
index c23523bf9c59ba80b499de8baea22697d3f8bf6c..0000000000000000000000000000000000000000
--- a/conversations/conv_003394.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_003398.json b/conversations/conv_003398.json
deleted file mode 100644
index 52c571a659269ec706a57dcb1b89f1451abb22d4..0000000000000000000000000000000000000000
--- a/conversations/conv_003398.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
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-      "real_speaker_id": "4447",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "duration_frames": 105071,
-      "overlap": true,
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-      "real_speaker_id": "176",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.96209595161835,
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-      "duration": 4.037904048381652,
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-      "utterance_id": "17-363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
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-  "foreground_events": [
-    {
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_003402.json b/conversations/conv_003402.json
deleted file mode 100644
index 66d0c72e91daa1a317f19470d7c408359a8817d5..0000000000000000000000000000000000000000
--- a/conversations/conv_003402.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.218080012742426,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8302-281317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281317.flac |",
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-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "421-128336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281317.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 70952
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.941528933107698,
-      "end_time": 31.218080012742426,
-      "duration": 4.276551079634729,
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-      "duration_frames": 68424,
-      "overlap": true,
-      "utterance_id": "3370-724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-724.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/164574.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8302/laugh/0038.wav",
-      "duration": 0.5862353270999572,
-      "start_time": 0,
-      "speaker_id": "8302"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3370/cough/0113.wav",
-      "duration": 0.49221659761080255,
-      "start_time": 4.869302179133309,
-      "speaker_id": "3370"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3370/laugh/0016.wav",
-      "duration": 1.1529620862258143,
-      "start_time": 15.620327842702531,
-      "speaker_id": "3370"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3370/cough/0019.wav",
-      "duration": 1.08,
-      "start_time": 27.722761351980186,
-      "speaker_id": "3370"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003414.json b/conversations/conv_003414.json
deleted file mode 100644
index d709e417cf06811f4a0a1cabf1f0d64fcc68d65c..0000000000000000000000000000000000000000
--- a/conversations/conv_003414.json
+++ /dev/null
@@ -1,101 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.47462868170456,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.801045959363887,
-      "duration": 6.801045959363887,
-      "start_frame": 0,
-      "duration_frames": 108816,
-      "overlap": false,
-      "utterance_id": "2351-151965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2351-151965.flac |",
-      "real_speaker_id": "2351",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.979201882611286,
-      "end_time": 12.303410176364842,
-      "duration": 5.324208293753556,
-      "start_frame": 111667,
-      "duration_frames": 85187,
-      "overlap": false,
-      "utterance_id": "6038-56778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.102747852693412,
-      "end_time": 17.141254229420376,
-      "duration": 5.038506376726962,
-      "start_frame": 193643,
-      "duration_frames": 80616,
-      "overlap": true,
-      "utterance_id": "2351-151970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2351-151970.flac |",
-      "real_speaker_id": "2351",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.946274996626496,
-      "end_time": 24.478504170262422,
-      "duration": 5.532229173635927,
-      "start_frame": 303140,
-      "duration_frames": 88515,
-      "overlap": false,
-      "utterance_id": "6038-56778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 85187
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.001432950504125,
-      "end_time": 31.47462868170456,
-      "duration": 6.473195731200434,
-      "start_frame": 400022,
-      "duration_frames": 103571,
-      "overlap": false,
-      "utterance_id": "2351-151965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2351-151965.flac |",
-      "real_speaker_id": "2351",
-      "position_frames": 108816
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 23.123673469387754,
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
-      "duration": 1.2095691609977324,
-      "start_time": 16.66441100603829
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
-      "duration": 0.4961451247165533,
-      "start_time": 19.526078338086716
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_003418.json b/conversations/conv_003418.json
deleted file mode 100644
index e3baec2e0903dd6f50d003714db39fabbad697d5..0000000000000000000000000000000000000000
--- a/conversations/conv_003418.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.341252263777919,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "114-129324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/114-129324.flac |",
-      "real_speaker_id": "114",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.049077767895771,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-16038.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
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-      "utterance_id": "8465-246943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246943.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 17.514123981535427,
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-      "duration": 3.660893304852701,
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-      "overlap": false,
-      "utterance_id": "114-129324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/114-129324.flac |",
-      "real_speaker_id": "114",
-      "position_frames": 101460
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.86199635547244,
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-      "overlap": true,
-      "utterance_id": "8465-246942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246942.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.444389923740406,
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-      "duration_frames": 58506,
-      "overlap": false,
-      "utterance_id": "4352-10940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-10940.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.618140793796844,
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-      "duration": 0.3818592062031563,
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-      "utterance_id": "114-129317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/114-129317.flac |",
-      "real_speaker_id": "114",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8465/laugh/0020.wav",
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-    {
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-      "duration": 1.2,
-      "start_time": 25.955610796284063,
-      "speaker_id": "8465"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003419.json b/conversations/conv_003419.json
deleted file mode 100644
index ecdfa1488ce5550031c9e20131bc4fdf88961317..0000000000000000000000000000000000000000
--- a/conversations/conv_003419.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.695998120720358,
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-      "start_frame": 0,
-      "duration_frames": 91135,
-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.74227397600825,
-      "end_time": 12.39357562687486,
-      "duration": 5.65130165086661,
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-      "duration_frames": 90420,
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-      "utterance_id": "8846-305209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305209.flac |",
-      "real_speaker_id": "8846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.184225224626532,
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-      "duration_frames": 90594,
-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 91135
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.962085649335545,
-      "end_time": 22.89237119064872,
-      "duration": 3.9302855413131756,
-      "start_frame": 303393,
-      "duration_frames": 62884,
-      "overlap": false,
-      "utterance_id": "2691-156755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156755.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.39357082019787,
-      "end_time": 27.445169208303255,
-      "duration": 4.051598388105386,
-      "start_frame": 374297,
-      "duration_frames": 64825,
-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 181729
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.386742316263387,
-      "end_time": 32.0,
-      "duration": 3.613257683736613,
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-      "utterance_id": "8846-305208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305208.flac |",
-      "real_speaker_id": "8846",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_003422.json b/conversations/conv_003422.json
deleted file mode 100644
index f24f5be83cc8b248585c718ee6326f133cbb58e2..0000000000000000000000000000000000000000
--- a/conversations/conv_003422.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.7941534078254495,
-      "duration": 3.7941534078254495,
-      "start_frame": 0,
-      "duration_frames": 60706,
-      "overlap": false,
-      "utterance_id": "3214-167607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167607.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.172072146307146,
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-      "duration": 3.6965590217027913,
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-      "duration_frames": 59144,
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-      "utterance_id": "3214-167607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167607.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 60706
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.280950585684153,
-      "end_time": 12.026162803620167,
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-      "utterance_id": "6294-85684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "167",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "167",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6294-86679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-86679.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.51769568810847,
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-      "duration": 0.48230431189152867,
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-      "duration_frames": 7716,
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-      "utterance_id": "167-15255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-15255.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 78843
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-      "event_class": "Dishes",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3214/laugh/0006.wav",
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-      "duration": 1.4169010044546857,
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-      "speaker_id": "167"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003425.json b/conversations/conv_003425.json
deleted file mode 100644
index 2ad67bec12a3eacc2b36abdabbd2bc0e1aa49632..0000000000000000000000000000000000000000
--- a/conversations/conv_003425.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.764124194894233,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.853611625445789,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8042-113762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-113762.flac |",
-      "real_speaker_id": "8042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.803307353175488,
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-      "overlap": false,
-      "utterance_id": "2285-124595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-124595.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.735119515816336,
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-      "utterance_id": "8042-113762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-113762.flac |",
-      "real_speaker_id": "8042",
-      "position_frames": 61657
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.142172568125595,
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-      "duration": 4.490048276140002,
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-      "overlap": false,
-      "utterance_id": "2285-124595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-124595.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 68777
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.844291417709737,
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-      "utterance_id": "8042-245695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-245695.flac |",
-      "real_speaker_id": "8042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.944715239118093,
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-      "duration": 4.81940895577614,
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-      "overlap": true,
-      "utterance_id": "2285-163381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-163381.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8042/laugh/0071.wav",
-      "duration": 1.42,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8042/cough/0098.wav",
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-      "speaker_id": "8042"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003433.json b/conversations/conv_003433.json
deleted file mode 100644
index 43a29a0046727cf0f41795c09fbb8a50c62f2ff6..0000000000000000000000000000000000000000
--- a/conversations/conv_003433.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5163-39921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-39921.flac |",
-      "real_speaker_id": "5163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.87057935283959,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-39938.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-18515.flac |",
-      "real_speaker_id": "5163",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-39938.flac |",
-      "real_speaker_id": "5652",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1603-139324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139324.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5163-18515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-18515.flac |",
-      "real_speaker_id": "5163",
-      "position_frames": 95895
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.8,
-      "start_time": 19.14301322342928,
-      "speaker_id": "5163"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5163/cough/0041.wav",
-      "duration": 0.633738276465205,
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-      "speaker_id": "5163"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5652/laugh/0062.wav",
-      "duration": 1.24,
-      "start_time": 23.730681363615325,
-      "speaker_id": "5652"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003434.json b/conversations/conv_003434.json
deleted file mode 100644
index f75c658f1574b30631ff152c7c6bbc181832602f..0000000000000000000000000000000000000000
--- a/conversations/conv_003434.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "position_frames": 0
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-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 105397
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.81383836023029,
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-      "duration": 4.138733741524021,
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-      "overlap": false,
-      "utterance_id": "3082-165428",
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-      "real_speaker_id": "3082",
-      "position_frames": 204953
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4054-11077.flac |",
-      "real_speaker_id": "4054",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 0.9562082282941695,
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-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 271172
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_2.wav",
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-      "start_time": 22.62499411435186
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_003435.json b/conversations/conv_003435.json
deleted file mode 100644
index 38bc846dcf2884cab1875dc38e29d681cc2a3bed..0000000000000000000000000000000000000000
--- a/conversations/conv_003435.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.50583925935374,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.698156505523322,
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-      "start_frame": 0,
-      "duration_frames": 75170,
-      "overlap": false,
-      "utterance_id": "1353-122456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-122456.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2792",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5725-50452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-50452.flac |",
-      "real_speaker_id": "5725",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-44938.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003438.json b/conversations/conv_003438.json
deleted file mode 100644
index 840c752e05aa213b084c8b6c1956218bd96e7122..0000000000000000000000000000000000000000
--- a/conversations/conv_003438.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25379.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 87000
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.89787095065877,
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-      "overlap": false,
-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 63794
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.927828346567203,
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-      "duration": 1.0721716534327967,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_003442.json b/conversations/conv_003442.json
deleted file mode 100644
index 7e3ea509ce88a921e88a7dc58a7670df1b8f49c9..0000000000000000000000000000000000000000
--- a/conversations/conv_003442.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.222596281271603,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "1334-135589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1334-135589.flac |",
-      "real_speaker_id": "1334",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4860.flac |",
-      "real_speaker_id": "5252",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
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-      "real_speaker_id": "1334",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 130564
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "speaker_id": "1958"
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_003443.json b/conversations/conv_003443.json
deleted file mode 100644
index 5ddf317af98341cc65ed4e89767327614908c121..0000000000000000000000000000000000000000
--- a/conversations/conv_003443.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14133.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "5339",
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-      "real_speaker_id": "125",
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-    {
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-      "start_time": 22.344421280698448,
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-      "overlap": false,
-      "utterance_id": "7926-254949",
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-      "real_speaker_id": "7926",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5339-14134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "speaker_id": "7926"
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-}
\ No newline at end of file
diff --git a/conversations/conv_003455.json b/conversations/conv_003455.json
deleted file mode 100644
index 61cca64b38b853c9ae7d80c4b0adcab2ca6bd9df..0000000000000000000000000000000000000000
--- a/conversations/conv_003455.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "real_speaker_id": "8152",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125871.flac |",
-      "real_speaker_id": "336",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_003459.json b/conversations/conv_003459.json
deleted file mode 100644
index e00ec4ab6315de66a9a1051dc38fa1acf36e3398..0000000000000000000000000000000000000000
--- a/conversations/conv_003459.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "1614-13759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-13759.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 4.493017502016955,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-141486.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-13759.flac |",
-      "real_speaker_id": "1614",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003463.json b/conversations/conv_003463.json
deleted file mode 100644
index cb07d5349816add6458bd4234e0811b8695821c5..0000000000000000000000000000000000000000
--- a/conversations/conv_003463.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "5290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "overlap": false,
-      "utterance_id": "5778-12761",
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-      "real_speaker_id": "5778",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5290-26685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-26685.flac |",
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-      "position_frames": 69881
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_003464.json b/conversations/conv_003464.json
deleted file mode 100644
index 78a2f0cd9d66424ac28d4b7c28f55234382d584f..0000000000000000000000000000000000000000
--- a/conversations/conv_003464.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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-      "duration": 0.9187717967023261,
-      "start_time": 11.402470577748117,
-      "speaker_id": "3079"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4738/laugh/0130.wav",
-      "duration": 1.0095847999504097,
-      "start_time": 25.740172552384713,
-      "speaker_id": "4738"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003472.json b/conversations/conv_003472.json
deleted file mode 100644
index d5cd0e2d0cee76fa691d682d18b2973054246e95..0000000000000000000000000000000000000000
--- a/conversations/conv_003472.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.6734542930194,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8002775156577586,
-      "duration": 3.8002775156577586,
-      "start_frame": 0,
-      "duration_frames": 60804,
-      "overlap": false,
-      "utterance_id": "374-180299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180299.flac |",
-      "real_speaker_id": "374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.2757236415738404,
-      "end_time": 8.740876467209214,
-      "duration": 5.465152825635373,
-      "start_frame": 52411,
-      "duration_frames": 87442,
-      "overlap": true,
-      "utterance_id": "2194-141235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141235.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.070583007474905,
-      "end_time": 16.359489720132903,
-      "duration": 6.288906712657997,
-      "start_frame": 161129,
-      "duration_frames": 100622,
-      "overlap": false,
-      "utterance_id": "374-180299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180299.flac |",
-      "real_speaker_id": "374",
-      "position_frames": 60804
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.439935608443,
-      "end_time": 24.276939579633474,
-      "duration": 6.837003971190473,
-      "start_frame": 279038,
-      "duration_frames": 109392,
-      "overlap": false,
-      "utterance_id": "2825-666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-666.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.227940050024,
-      "end_time": 31.6734542930194,
-      "duration": 6.445514242995402,
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-      "duration_frames": 103128,
-      "overlap": false,
-      "utterance_id": "374-180299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180299.flac |",
-      "real_speaker_id": "374",
-      "position_frames": 161426
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
-      "duration": 2.5492464028239086,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/374/laugh/0038.wav",
-      "duration": 1.0,
-      "start_time": 8.938085691788647,
-      "speaker_id": "374"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/374/cough/0016.wav",
-      "duration": 1.28,
-      "start_time": 11.79494984394769,
-      "speaker_id": "374"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2825/laugh/0032.wav",
-      "duration": 0.659396632795695,
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-      "speaker_id": "2825"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003475.json b/conversations/conv_003475.json
deleted file mode 100644
index 4088b0e81bcfff3da0f68a6db76c328c55ce2e0c..0000000000000000000000000000000000000000
--- a/conversations/conv_003475.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.039623372034642,
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-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.400094786250838,
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-      "utterance_id": "3540-163612",
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-      "real_speaker_id": "3540",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.025228128123398,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 96633
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.16865036932959,
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-      "overlap": true,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 85756
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.34660619610192,
-      "end_time": 29.397565324944953,
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-      "overlap": false,
-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.66867600299959,
-      "end_time": 32.0,
-      "duration": 2.3313239970004105,
-      "start_frame": 474698,
-      "duration_frames": 37301,
-      "overlap": false,
-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 180630
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_003479.json b/conversations/conv_003479.json
deleted file mode 100644
index a7e55cf7b8d050e720ea06a802ac14b410d61d77..0000000000000000000000000000000000000000
--- a/conversations/conv_003479.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.476638557672768,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132611.flac |",
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-      "segment_id": "seg0002",
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-      "start_time": 10.201429025336509,
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-      "utterance_id": "83-9960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-9960.flac |",
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-      "real_speaker_id": "3825",
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-    {
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-      "real_speaker_id": "348",
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-    {
-      "segment_id": "seg0005",
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-      "start_frame": 407299,
-      "duration_frames": 96326,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-      "duration": 1.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_003480.json b/conversations/conv_003480.json
deleted file mode 100644
index 7d7b782bba8fd275e086c544d272a842c0bd3760..0000000000000000000000000000000000000000
--- a/conversations/conv_003480.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 5.327018120650427,
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-      "utterance_id": "726-124445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/726-124445.flac |",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1246-135815",
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-    {
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-      "utterance_id": "1226-141270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141270.flac |",
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-    {
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003496.json b/conversations/conv_003496.json
deleted file mode 100644
index 5f4ebdbdfa49ec16cc77c6f2ddd4f8325d36ef3e..0000000000000000000000000000000000000000
--- a/conversations/conv_003496.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.517732410255796,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.594808831675996,
-      "duration": 4.594808831675996,
-      "start_frame": 0,
-      "duration_frames": 73516,
-      "overlap": false,
-      "utterance_id": "3679-159363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
-      "real_speaker_id": "3679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.743178449494528,
-      "end_time": 10.495421738955361,
-      "duration": 5.752243289460834,
-      "start_frame": 75890,
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-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.933599367242643,
-      "end_time": 16.24270198165016,
-      "duration": 5.309102614407518,
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-      "duration_frames": 84945,
-      "overlap": false,
-      "utterance_id": "3679-159363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
-      "real_speaker_id": "3679",
-      "position_frames": 73516
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.65390147312211,
-      "end_time": 20.407748273911125,
-      "duration": 3.753846800789012,
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-      "duration_frames": 60061,
-      "overlap": false,
-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 92035
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.429096433185606,
-      "end_time": 23.90710189645631,
-      "duration": 3.4780054632707063,
-      "start_frame": 326865,
-      "duration_frames": 55648,
-      "overlap": true,
-      "utterance_id": "3679-159363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
-      "real_speaker_id": "3679",
-      "position_frames": 158461
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.68184912273838,
-      "end_time": 31.517732410255796,
-      "duration": 5.835883287517413,
-      "start_frame": 410909,
-      "duration_frames": 93374,
-      "overlap": false,
-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 152096
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.140219864323413,
-      "end_time": 31.44463215089146,
-      "duration": 0.30441228656804853,
-      "start_frame": 498243,
-      "duration_frames": 4870,
-      "overlap": true,
-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 245470
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 18.88419944053551,
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_15.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3679/cough/0076.wav",
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-      "start_time": 0,
-      "speaker_id": "3679"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003506.json b/conversations/conv_003506.json
deleted file mode 100644
index f6b3d9648b3756ffba3b67a86b6480c95ae3784c..0000000000000000000000000000000000000000
--- a/conversations/conv_003506.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.42656890935543,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.886564227122542,
-      "duration": 4.886564227122542,
-      "start_frame": 0,
-      "duration_frames": 78185,
-      "overlap": false,
-      "utterance_id": "5952-54019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-54019.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.408027181493517,
-      "end_time": 9.197152253437112,
-      "duration": 3.789125071943595,
-      "start_frame": 86528,
-      "duration_frames": 60626,
-      "overlap": false,
-      "utterance_id": "6084-2159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.65695173183995,
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-      "duration": 3.9803490836498825,
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-      "duration_frames": 63685,
-      "overlap": false,
-      "utterance_id": "5952-50948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-50948.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.051712959970175,
-      "end_time": 20.89349175891156,
-      "duration": 6.841778798941385,
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-      "duration_frames": 109468,
-      "overlap": true,
-      "utterance_id": "2574-128282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128282.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.760060278212702,
-      "end_time": 27.455012082078284,
-      "duration": 5.694951803865583,
-      "start_frame": 348160,
-      "duration_frames": 91119,
-      "overlap": false,
-      "utterance_id": "2574-128303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128303.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.87654109797954,
-      "end_time": 31.42656890935543,
-      "duration": 3.5500278113758896,
-      "start_frame": 446024,
-      "duration_frames": 56800,
-      "overlap": false,
-      "utterance_id": "5952-50948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-50948.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 63685
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 14.516693305775604,
-      "start_time": 16.18888606079561
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
-      "duration": 2.966634256346972,
-      "start_time": 19.604386197449067
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-      "start_time": 12.72501711560039
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6084/laugh/0082.wav",
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-      "start_time": 4.377331334065195,
-      "speaker_id": "6084"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2574/laugh/0120.wav",
-      "duration": 1.28,
-      "start_time": 21.106633223226954,
-      "speaker_id": "2574"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5952/laugh/0078.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "5952"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5952/cough/0058.wav",
-      "duration": 0.7131996042636557,
-      "start_time": 30.696493798754606,
-      "speaker_id": "5952"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003510.json b/conversations/conv_003510.json
deleted file mode 100644
index 37c38da009f1d36e4fcb0f079e2e2d41243be605..0000000000000000000000000000000000000000
--- a/conversations/conv_003510.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.585758654021569,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5296-26679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.870059965376704,
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-      "overlap": false,
-      "utterance_id": "8040-111641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-111641.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.433391408982725,
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-      "overlap": false,
-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.333595688675633,
-      "end_time": 21.859558655174958,
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-      "utterance_id": "5296-26679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 73372
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.50537378581643,
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-      "duration": 6.131518887049661,
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-      "duration_frames": 98104,
-      "overlap": false,
-      "utterance_id": "4667-102196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.961328400992873,
-      "end_time": 32.0,
-      "duration": 3.0386715990071274,
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-      "duration_frames": 48618,
-      "overlap": false,
-      "utterance_id": "5296-26679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 177787
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8040/laugh/0004.wav",
-      "duration": 0.6043232370608711,
-      "start_time": 7.21073420795924,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5296/laugh/0060.wav",
-      "duration": 1.24,
-      "start_time": 13.930736487561635,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/laugh/0121.wav",
-      "duration": 0.6320310468681236,
-      "start_time": 23.008428603089712,
-      "speaker_id": "4667"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/cough/0065.wav",
-      "duration": 1.0,
-      "start_time": 28.670725493157207,
-      "speaker_id": "4667"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003521.json b/conversations/conv_003521.json
deleted file mode 100644
index e71e55d13d8dc1215ef79912e3326afa72c6cead..0000000000000000000000000000000000000000
--- a/conversations/conv_003521.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.057850889452636,
-      "duration": 6.057850889452636,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.971923482947228,
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-      "utterance_id": "2448-163521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163521.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.499447250975077,
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-      "duration": 6.97579721426799,
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-      "overlap": false,
-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 96925
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "2930",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2448-141428",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "2448"
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-      "event_class": "laugh",
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-      "speaker_id": "2930"
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-      "duration": 1.093101571310179,
-      "start_time": 26.22822341696085,
-      "speaker_id": "2930"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003526.json b/conversations/conv_003526.json
deleted file mode 100644
index 173a6bf77bc4792e04e92ff14c5a107a8628cd93..0000000000000000000000000000000000000000
--- a/conversations/conv_003526.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1566-133291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-133291.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
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-      "start_time": 10.552246877520872,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-133291.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 70160
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-134792.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.199743221776252,
-      "end_time": 27.486651792632706,
-      "duration": 4.286908570856452,
-      "start_frame": 371195,
-      "duration_frames": 68590,
-      "overlap": false,
-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 77732
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.77590146015858,
-      "end_time": 32.0,
-      "duration": 4.224098539841421,
-      "start_frame": 444414,
-      "duration_frames": 67585,
-      "overlap": false,
-      "utterance_id": "2775-134792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-134792.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 81253
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003530.json b/conversations/conv_003530.json
deleted file mode 100644
index bfab84cfa53d6e961f2fb6d0a9a1bde2739e1fb1..0000000000000000000000000000000000000000
--- a/conversations/conv_003530.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.589428856259016,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 6.647260973109896,
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-      "start_frame": 0,
-      "duration_frames": 106356,
-      "overlap": false,
-      "utterance_id": "7062-80029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-80029.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6251-63840.flac |",
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-      "utterance_id": "3486-166424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "3486-166446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.381402396401676,
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-      "overlap": false,
-      "utterance_id": "6251-94836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6251-94836.flac |",
-      "real_speaker_id": "6251",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.559878407974164,
-      "end_time": 31.589428856259016,
-      "duration": 3.0295504482848514,
-      "start_frame": 456958,
-      "duration_frames": 48472,
-      "overlap": true,
-      "utterance_id": "3486-166446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 70261
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-    {
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003537.json b/conversations/conv_003537.json
deleted file mode 100644
index 056d583c12039a330cdcad0eac8af4604c3322ae..0000000000000000000000000000000000000000
--- a/conversations/conv_003537.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.096398846309082,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.1819022223924,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 86567
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
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-      "speaker_id": 2,
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-      "real_speaker_id": "7062",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 156395
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 26.731004326348714,
-      "speaker_id": "4821"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003547.json b/conversations/conv_003547.json
deleted file mode 100644
index fbdd759c76ff97b4be992500a7808fbef3bfa04c..0000000000000000000000000000000000000000
--- a/conversations/conv_003547.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-79375.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180299.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-79375.flac |",
-      "real_speaker_id": "6568",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2152/laugh/0134.wav",
-      "duration": 1.22,
-      "start_time": 7.582026199890731,
-      "speaker_id": "2152"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/374/laugh/0097.wav",
-      "duration": 0.9667430054663677,
-      "start_time": 27.19321897863026,
-      "speaker_id": "374"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6568/laugh/0154.wav",
-      "duration": 0.922018671166787,
-      "start_time": 31.077981328833214,
-      "speaker_id": "6568"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003551.json b/conversations/conv_003551.json
deleted file mode 100644
index 5128c4ff08285c21ecaad6317151e234273b5cec..0000000000000000000000000000000000000000
--- a/conversations/conv_003551.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.335505759270412,
-      "duration": 3.335505759270412,
-      "start_frame": 0,
-      "duration_frames": 53368,
-      "overlap": false,
-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.6798894441121606,
-      "end_time": 10.037132738517496,
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-      "overlap": false,
-      "utterance_id": "1636-130535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130535.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.276702618383013,
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-      "overlap": false,
-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 53368
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "6567-53342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.749740271109488,
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-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 127123
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.2578063886088664,
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-      "utterance_id": "6567-53342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
-      "position_frames": 74117
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-      "speaker_id": "6567"
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\ No newline at end of file
diff --git a/conversations/conv_003560.json b/conversations/conv_003560.json
deleted file mode 100644
index bd9b117d18a60250bdb488ea225cb25488dcabbf..0000000000000000000000000000000000000000
--- a/conversations/conv_003560.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.55097952679792,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
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-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 179047
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.47921627362896,
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-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.828141125759448,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 253948
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_003567.json b/conversations/conv_003567.json
deleted file mode 100644
index e76cf87c5eec495df26f2f1ab8c64bf13da4f483..0000000000000000000000000000000000000000
--- a/conversations/conv_003567.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7142.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7153.flac |",
-      "real_speaker_id": "3179",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3479",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "7250",
-      "position_frames": 168368
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_003570.json b/conversations/conv_003570.json
deleted file mode 100644
index b16193761ac2f3bed0e7a03b6ada63fe4eb9674f..0000000000000000000000000000000000000000
--- a/conversations/conv_003570.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2007-132570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-132570.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6411/cough/0002.wav",
-      "duration": 1.2004187498056582,
-      "start_time": 17.07116495669388,
-      "speaker_id": "6411"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2007/laugh/0059.wav",
-      "duration": 0.7777806648924772,
-      "start_time": 28.000494976013556,
-      "speaker_id": "2007"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6411/cough/0072.wav",
-      "duration": 1.2269718864203905,
-      "start_time": 26.87830810018009,
-      "speaker_id": "6411"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003571.json b/conversations/conv_003571.json
deleted file mode 100644
index d75dbdfc2890045d412fbe97e3dc2dfa012c1c71..0000000000000000000000000000000000000000
--- a/conversations/conv_003571.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.654928686418845,
-      "duration": 4.654928686418845,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7199-84007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84007.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.511001660714607,
-      "end_time": 10.76161595521095,
-      "duration": 6.2506142944963425,
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-      "duration_frames": 100009,
-      "overlap": true,
-      "utterance_id": "1025-92820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-92820.flac |",
-      "real_speaker_id": "1025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.401801487620979,
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-      "duration": 6.785338039474958,
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-      "duration_frames": 108565,
-      "overlap": false,
-      "utterance_id": "7199-84007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84007.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 74478
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.459838216432924,
-      "end_time": 23.866641236047748,
-      "duration": 5.406803019614822,
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-      "overlap": false,
-      "utterance_id": "127-129390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.52088789258817,
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-      "utterance_id": "7199-84006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84006.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.495601034448324,
-      "end_time": 32.0,
-      "duration": 3.504398965551676,
-      "start_frame": 455929,
-      "duration_frames": 56070,
-      "overlap": false,
-      "utterance_id": "127-129390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 86508
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 3.442645788930794,
-      "speaker_id": "1025"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7199/laugh/0044.wav",
-      "duration": 0.7277440706050247,
-      "start_time": 28.226761208644525,
-      "speaker_id": "7199"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/127/cough/0058.wav",
-      "duration": 1.0,
-      "start_time": 27.48126106304352,
-      "speaker_id": "127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003576.json b/conversations/conv_003576.json
deleted file mode 100644
index cf27aecd11da736b6304c2b15e77b243785b7897..0000000000000000000000000000000000000000
--- a/conversations/conv_003576.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.05211929989052,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1624-142933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.06561501008105,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 111199
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 14.422047979937346,
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-      "overlap": false,
-      "utterance_id": "5933-91994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-91994.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.966222128638645,
-      "end_time": 24.70227941215378,
-      "duration": 5.736057283515133,
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-      "duration_frames": 91776,
-      "overlap": false,
-      "utterance_id": "1624-142933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 209463
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.093792865821342,
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-      "overlap": false,
-      "utterance_id": "6082-56174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.868305038438915,
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-      "duration_frames": 18941,
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-      "utterance_id": "1624-142933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 301239
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.16,
-      "start_time": 18.48397515812731,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1624/laugh/0015.wav",
-      "duration": 1.36,
-      "start_time": 28.36080155924919,
-      "speaker_id": "1624"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003584.json b/conversations/conv_003584.json
deleted file mode 100644
index 891972b20c6011f5a49cbc3ccfb99aee927c58f1..0000000000000000000000000000000000000000
--- a/conversations/conv_003584.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.159184958095302,
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-      "utterance_id": "1680-142282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1680-142282.flac |",
-      "real_speaker_id": "1680",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.284600724361535,
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-      "duration_frames": 73902,
-      "overlap": true,
-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 75566
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
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-      "position_frames": 91967
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003588.json b/conversations/conv_003588.json
deleted file mode 100644
index d41407f9630f5befcf5132b7238378d72d4226f7..0000000000000000000000000000000000000000
--- a/conversations/conv_003588.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.99449738847863,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4273-188164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188164.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.387612157579316,
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-      "utterance_id": "4492-8904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.424329634554262,
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-      "utterance_id": "4273-188158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188158.flac |",
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-      "position_frames": 0
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-    {
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-      "duration": 3.725823978269705,
-      "start_time": 17.508779069714024
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4273/cough/0066.wav",
-      "duration": 0.6602551257893059,
-      "start_time": 0.09406224084884937,
-      "speaker_id": "4273"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4273/laugh/0033.wav",
-      "duration": 1.34,
-      "start_time": 12.824686518485228,
-      "speaker_id": "4273"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5949/laugh/0104.wav",
-      "duration": 0.7372730499381047,
-      "start_time": 26.007386125844103,
-      "speaker_id": "5949"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003592.json b/conversations/conv_003592.json
deleted file mode 100644
index 52a228c344df9a1b300baa33575f0d9279a0ccc5..0000000000000000000000000000000000000000
--- a/conversations/conv_003592.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.144804822310393,
-      "duration": 4.144804822310393,
-      "start_frame": 0,
-      "duration_frames": 66316,
-      "overlap": false,
-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.994860121692137,
-      "end_time": 10.279893024512887,
-      "duration": 5.285032902820749,
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-      "duration_frames": 84560,
-      "overlap": false,
-      "utterance_id": "5791-31920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31920.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.678686598545378,
-      "end_time": 16.05588506866044,
-      "duration": 5.377198470115064,
-      "start_frame": 170858,
-      "duration_frames": 86035,
-      "overlap": false,
-      "utterance_id": "6014-32904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32904.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.923995147600053,
-      "end_time": 20.663406852051818,
-      "duration": 3.739411704451765,
-      "start_frame": 270783,
-      "duration_frames": 59830,
-      "overlap": false,
-      "utterance_id": "4423-29084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-29084.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.458606230444715,
-      "end_time": 24.769634112592897,
-      "duration": 3.31102788214818,
-      "start_frame": 343337,
-      "duration_frames": 52976,
-      "overlap": false,
-      "utterance_id": "6014-32856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32856.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.97513679386498,
-      "end_time": 28.90457167655326,
-      "duration": 3.9294348826882803,
-      "start_frame": 399602,
-      "duration_frames": 62870,
-      "overlap": false,
-      "utterance_id": "5791-31920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31920.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 84560
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.90985394947831,
-      "end_time": 32.0,
-      "duration": 2.090146050521689,
-      "start_frame": 478557,
-      "duration_frames": 33442,
-      "overlap": false,
-      "utterance_id": "6014-32886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32886.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
-      "duration": 1.2095691609977324,
-      "start_time": 15.081062970403794
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
-      "duration": 2.0470748299319728,
-      "start_time": 6.860942622987631
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5791/laugh/0055.wav",
-      "duration": 0.906887312428134,
-      "start_time": 23.820360252772623,
-      "speaker_id": "5791"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5791/cough/0047.wav",
-      "duration": 1.14,
-      "start_time": 23.653136179832277,
-      "speaker_id": "5791"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003599.json b/conversations/conv_003599.json
deleted file mode 100644
index 6ea5cbdabb2de1591573c5166a747021ec69be2d..0000000000000000000000000000000000000000
--- a/conversations/conv_003599.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.407854080679346,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.477416227149893,
-      "duration": 6.477416227149893,
-      "start_frame": 0,
-      "duration_frames": 103638,
-      "overlap": false,
-      "utterance_id": "3656-168648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168648.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.7046473999895415,
-      "end_time": 11.741987893403998,
-      "duration": 5.037340493414456,
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-      "overlap": true,
-      "utterance_id": "820-123133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.190439220239956,
-      "end_time": 17.98587039045551,
-      "duration": 5.7954311702155525,
-      "start_frame": 195047,
-      "duration_frames": 92726,
-      "overlap": true,
-      "utterance_id": "5684-46243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5684-46243.flac |",
-      "real_speaker_id": "5684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.939947448094035,
-      "end_time": 24.736003917225617,
-      "duration": 5.79605646913158,
-      "start_frame": 303039,
-      "duration_frames": 92736,
-      "overlap": false,
-      "utterance_id": "5684-46243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5684-46243.flac |",
-      "real_speaker_id": "5684",
-      "position_frames": 92726
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.155079939162157,
-      "end_time": 30.053056753773888,
-      "duration": 4.897976814611733,
-      "start_frame": 402481,
-      "duration_frames": 78367,
-      "overlap": false,
-      "utterance_id": "5684-46243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5684-46243.flac |",
-      "real_speaker_id": "5684",
-      "position_frames": 185462
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.61624188489975,
-      "end_time": 31.407854080679346,
-      "duration": 1.7916121957795959,
-      "start_frame": 473859,
-      "duration_frames": 28665,
-      "overlap": true,
-      "utterance_id": "820-123133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 80597
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 23.123673469387754,
-      "start_time": 6.118506074829221
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
-      "start_time": 27.57488116517311
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_003603.json b/conversations/conv_003603.json
deleted file mode 100644
index fb060c253b3c09e6ebc673222942285c671871f7..0000000000000000000000000000000000000000
--- a/conversations/conv_003603.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.702739264517817,
-      "duration": 4.702739264517817,
-      "start_frame": 0,
-      "duration_frames": 75243,
-      "overlap": false,
-      "utterance_id": "982-133226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/982-133226.flac |",
-      "real_speaker_id": "982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.237201236095438,
-      "end_time": 9.656467054997378,
-      "duration": 4.419265818901939,
-      "start_frame": 83795,
-      "duration_frames": 70708,
-      "overlap": false,
-      "utterance_id": "5796-51153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-51153.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.903965396848381,
-      "end_time": 13.719887097541534,
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-      "start_frame": 158463,
-      "duration_frames": 61054,
-      "overlap": false,
-      "utterance_id": "982-133226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/982-133226.flac |",
-      "real_speaker_id": "982",
-      "position_frames": 75243
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.168002267506466,
-      "end_time": 19.2482538368424,
-      "duration": 5.080251569335934,
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-      "duration_frames": 81284,
-      "overlap": false,
-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.530042453738663,
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-      "utterance_id": "5796-51153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-51153.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 70708
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.70313985890056,
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-      "duration": 4.889871143078177,
-      "start_frame": 411250,
-      "duration_frames": 78237,
-      "overlap": false,
-      "utterance_id": "982-133226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/982-133226.flac |",
-      "real_speaker_id": "982",
-      "position_frames": 136297
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.50589446814515,
-      "end_time": 32.0,
-      "duration": 0.4941055318548493,
-      "start_frame": 504094,
-      "duration_frames": 7905,
-      "overlap": false,
-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 81284
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-    {
-      "event_class": "Blender",
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-      "duration": 3.5201972428952115,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5796/laugh/0062.wav",
-      "duration": 0.9,
-      "start_time": 9.856041596596716,
-      "speaker_id": "5796"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/982/laugh/0082.wav",
-      "duration": 1.1,
-      "start_time": 13.769985915470086,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7647/cough/0074.wav",
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-      "start_time": 31.148869909370976,
-      "speaker_id": "7647"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003608.json b/conversations/conv_003608.json
deleted file mode 100644
index 1797991d58491a021775bb1fb25c371a4081f742..0000000000000000000000000000000000000000
--- a/conversations/conv_003608.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.684080872398658,
-      "duration": 4.684080872398658,
-      "start_frame": 0,
-      "duration_frames": 74945,
-      "overlap": false,
-      "utterance_id": "1474-128276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128276.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.282283090792735,
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-      "duration_frames": 109772,
-      "overlap": true,
-      "utterance_id": "3830-12529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12529.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.378365839320908,
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-      "duration": 3.8739143958999627,
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-      "duration_frames": 61982,
-      "overlap": true,
-      "utterance_id": "5776-46889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5776-46889.flac |",
-      "real_speaker_id": "5776",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "1474-172821",
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-      "real_speaker_id": "1474",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128275.flac |",
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003615.json b/conversations/conv_003615.json
deleted file mode 100644
index 254e085e9beb7a508cd3e0917f8c8fef8f113114..0000000000000000000000000000000000000000
--- a/conversations/conv_003615.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.26921859442786,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.2756470115505705,
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-      "overlap": false,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 6.450593029817586,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135063.flac |",
-      "real_speaker_id": "1258",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.977623588809497,
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-      "utterance_id": "1258-135062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135062.flac |",
-      "real_speaker_id": "1258",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.51143483213538,
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-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 68598
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.025338758796863,
-      "end_time": 31.26921859442786,
-      "duration": 1.2438798356309952,
-      "start_frame": 480405,
-      "duration_frames": 19902,
-      "overlap": true,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 100410
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003619.json b/conversations/conv_003619.json
deleted file mode 100644
index 686081401e0376cc3ec320a535ea50908485d827..0000000000000000000000000000000000000000
--- a/conversations/conv_003619.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1353-134827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-134827.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.271270011275675,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
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-      "real_speaker_id": "4214",
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-      "real_speaker_id": "1734",
-      "position_frames": 68284
-    },
-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003622.json b/conversations/conv_003622.json
deleted file mode 100644
index 46637420487148d152ada69bb2f3bde6e69c45ad..0000000000000000000000000000000000000000
--- a/conversations/conv_003622.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
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-      "real_speaker_id": "2143",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_003623.json b/conversations/conv_003623.json
deleted file mode 100644
index 7e4f075dac8f46f6b0fac39add02c64e745b51ce..0000000000000000000000000000000000000000
--- a/conversations/conv_003623.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-279363.flac |",
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-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_003632.json b/conversations/conv_003632.json
deleted file mode 100644
index cd9e2a581f5564e1149c1b230043696740338e14..0000000000000000000000000000000000000000
--- a/conversations/conv_003632.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-48014.flac |",
-      "real_speaker_id": "1901",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35453.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_003635.json b/conversations/conv_003635.json
deleted file mode 100644
index ef6f661afe09a5dad3c5c99169166f134be791a9..0000000000000000000000000000000000000000
--- a/conversations/conv_003635.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_003639.json b/conversations/conv_003639.json
deleted file mode 100644
index 37426a38802822457b620937dcd63b3a3fb411fc..0000000000000000000000000000000000000000
--- a/conversations/conv_003639.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_003642.json b/conversations/conv_003642.json
deleted file mode 100644
index 6b6ff215baea37d09037d145906d9aee73f2ad1f..0000000000000000000000000000000000000000
--- a/conversations/conv_003642.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "6035-80463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-80463.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-80463.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 111127
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.35859788122272,
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-      "utterance_id": "377-129290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.525384897145344,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-74040.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.137149377792614,
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-      "duration": 3.862850622207386,
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-      "utterance_id": "377-129290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 79648
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6035/laugh/0047.wav",
-      "duration": 1.5769415217587337,
-      "start_time": 0,
-      "speaker_id": "6035"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/377/cough/0001.wav",
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-      "start_time": 28.429336441612662,
-      "speaker_id": "377"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003649.json b/conversations/conv_003649.json
deleted file mode 100644
index 3da2062ba1950607e9b61df8b86ea6fca95a8115..0000000000000000000000000000000000000000
--- a/conversations/conv_003649.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "581-126957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/581-126957.flac |",
-      "real_speaker_id": "581",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1382-130549.flac |",
-      "real_speaker_id": "1382",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.896246926472294,
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-      "duration_frames": 86952,
-      "overlap": false,
-      "utterance_id": "8262-279161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.820444259780892,
-      "end_time": 24.715128362858934,
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-      "start_frame": 285127,
-      "duration_frames": 110314,
-      "overlap": false,
-      "utterance_id": "581-126957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/581-126957.flac |",
-      "real_speaker_id": "581",
-      "position_frames": 94842
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.852803093141883,
-      "end_time": 29.53323669461691,
-      "duration": 4.680433601475026,
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-      "duration_frames": 74886,
-      "overlap": false,
-      "utterance_id": "8262-279161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
-      "position_frames": 86952
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.317798623325547,
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-      "duration": 1.6822013766744526,
-      "start_frame": 485084,
-      "duration_frames": 26915,
-      "overlap": false,
-      "utterance_id": "1382-130548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1382-130548.flac |",
-      "real_speaker_id": "1382",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_9.wav",
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-      "start_time": 0,
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_003654.json b/conversations/conv_003654.json
deleted file mode 100644
index 6b4ba077bf2916cea8e4779b13e79d16bd8f3855..0000000000000000000000000000000000000000
--- a/conversations/conv_003654.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "2624-173598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-173598.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
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-      "start_time": 5.8374511263923505,
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-      "utterance_id": "887-123289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123289.flac |",
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-      "position_frames": 0
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-      "duration_frames": 74060,
-      "overlap": false,
-      "utterance_id": "7327-93283",
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-      "real_speaker_id": "7327",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.01947857400991,
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-      "utterance_id": "887-123290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123290.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.65959123618717,
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-      "start_frame": 410553,
-      "duration_frames": 67741,
-      "overlap": false,
-      "utterance_id": "7327-96492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-96492.flac |",
-      "real_speaker_id": "7327",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.584698327717252,
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-      "duration": 1.415301672282748,
-      "start_frame": 489355,
-      "duration_frames": 22644,
-      "overlap": false,
-      "utterance_id": "887-123290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123290.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 92646
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-      "start_time": 24.889634000135697,
-      "speaker_id": "887"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003658.json b/conversations/conv_003658.json
deleted file mode 100644
index 180d3b2420c084d9099e76c487e4b8c149b41ea5..0000000000000000000000000000000000000000
--- a/conversations/conv_003658.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "duration_frames": 66722,
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-      "utterance_id": "7795-105407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.620387880830393,
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-      "utterance_id": "6377-34619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34619.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.896665856245555,
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-      "duration": 3.371855856064306,
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-      "utterance_id": "7795-105407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 66722
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 70957
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 120671
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.12959964602203,
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-      "duration": 1.8704003539779706,
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-      "duration_frames": 29926,
-      "overlap": false,
-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
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-      "position_frames": 167877
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-      "start_time": 25.01363413419182,
-      "speaker_id": "1977"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7795/laugh/0049.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1977/cough/0120.wav",
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-      "speaker_id": "1977"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003662.json b/conversations/conv_003662.json
deleted file mode 100644
index 09a888a73cb079975fd953da3f0c056485781f88..0000000000000000000000000000000000000000
--- a/conversations/conv_003662.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.603790536925626,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.246110274843735,
-      "duration": 6.246110274843735,
-      "start_frame": 0,
-      "duration_frames": 99937,
-      "overlap": false,
-      "utterance_id": "6488-66120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66120.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.354121803047067,
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-      "utterance_id": "5285-48598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5285-48598.flac |",
-      "real_speaker_id": "5285",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.397518973113492,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66120.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5285-80687.flac |",
-      "real_speaker_id": "5285",
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-      "event_class": "Blender",
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-      "speaker_id": "5285"
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003674.json b/conversations/conv_003674.json
deleted file mode 100644
index f9948acc472814e95c60c1f4f9b5583afb86d7fe..0000000000000000000000000000000000000000
--- a/conversations/conv_003674.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7511-102420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102420.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102419.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88367.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
-      "real_speaker_id": "3895",
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-      "position_frames": 78152
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
-      "real_speaker_id": "3895",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_003675.json b/conversations/conv_003675.json
deleted file mode 100644
index dc0798f8f5d42b5220435aee306f0eb6ac0e4267..0000000000000000000000000000000000000000
--- a/conversations/conv_003675.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_003678.json b/conversations/conv_003678.json
deleted file mode 100644
index 73f6c7a1335fa15eb6d7a207b47ddf3d83bad285..0000000000000000000000000000000000000000
--- a/conversations/conv_003678.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.429740548447388,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-123366.flac |",
-      "real_speaker_id": "470",
-      "position_frames": 0
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-      "real_speaker_id": "470",
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\ No newline at end of file
diff --git a/conversations/conv_003681.json b/conversations/conv_003681.json
deleted file mode 100644
index 5f679d0b41c0bbbbb04d24ad63053cd009edc63e..0000000000000000000000000000000000000000
--- a/conversations/conv_003681.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
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-    },
-    {
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_003697.json b/conversations/conv_003697.json
deleted file mode 100644
index 819a5292781a788669f43fef1e30573aa1fec7f3..0000000000000000000000000000000000000000
--- a/conversations/conv_003697.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.438809409411068,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 5.095492957832558,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
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-      "start_time": 11.657343045560957,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 73266
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_003707.json b/conversations/conv_003707.json
deleted file mode 100644
index 4c1575ae1ff8dba2af2c90afcde15920a9de543c..0000000000000000000000000000000000000000
--- a/conversations/conv_003707.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.12316051278551,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-12707.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7835",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "4226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.093113160365316,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 185267
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-  ],
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_003711.json b/conversations/conv_003711.json
deleted file mode 100644
index 2d225a9e9a2c2416aaf981519e401b7d3f0d3549..0000000000000000000000000000000000000000
--- a/conversations/conv_003711.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.991523829741414,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 5.340264281118387,
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-      "overlap": false,
-      "utterance_id": "1387-134991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1387-134991.flac |",
-      "real_speaker_id": "1387",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.786614143625952,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305208.flac |",
-      "real_speaker_id": "8846",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "1387-130989",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1387-130989.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8846",
-      "position_frames": 96208
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 83116
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-}
\ No newline at end of file
diff --git a/conversations/conv_003727.json b/conversations/conv_003727.json
deleted file mode 100644
index a18a336ec6b865a4e187fd21eef4eefd31e7ef37..0000000000000000000000000000000000000000
--- a/conversations/conv_003727.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41166.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_003731.json b/conversations/conv_003731.json
deleted file mode 100644
index 3e8fe30497b893863de78e71d8a67fdc5b92f289..0000000000000000000000000000000000000000
--- a/conversations/conv_003731.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7868-110705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110705.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39656.flac |",
-      "real_speaker_id": "6418",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110706.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.734017719635016,
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-      "utterance_id": "8630-305212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305212.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39656.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_003746.json b/conversations/conv_003746.json
deleted file mode 100644
index 71a36e409be550d23fa7c32fbf295720f3780d2b..0000000000000000000000000000000000000000
--- a/conversations/conv_003746.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "utterance_id": "6627-67844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67844.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-44585.flac |",
-      "real_speaker_id": "5622",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94462.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.17189428265305,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67844.flac |",
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-      "position_frames": 91721
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-  ],
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_003750.json b/conversations/conv_003750.json
deleted file mode 100644
index 680cf8a26f65d49c18a62672352eb1fc8e136f50..0000000000000000000000000000000000000000
--- a/conversations/conv_003750.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252334.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "6695-252325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252325.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "position_frames": 77605
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6695",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6695-252334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252334.flac |",
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-      "position_frames": 83536
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003766.json b/conversations/conv_003766.json
deleted file mode 100644
index 983d824e72eed216ff05567fbb99aef04448a577..0000000000000000000000000000000000000000
--- a/conversations/conv_003766.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8499-256247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8499-256247.flac |",
-      "real_speaker_id": "8499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.312457532290528,
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\ No newline at end of file
diff --git a/conversations/conv_003767.json b/conversations/conv_003767.json
deleted file mode 100644
index d02d88be5031ca6aea1733cfaee5362696399eac..0000000000000000000000000000000000000000
--- a/conversations/conv_003767.json
+++ /dev/null
@@ -1,88 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_003770.json b/conversations/conv_003770.json
deleted file mode 100644
index d76d91db0e7ef8925b3257def90a807e3a578fbc..0000000000000000000000000000000000000000
--- a/conversations/conv_003770.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_003777.json b/conversations/conv_003777.json
deleted file mode 100644
index bdf343196fd5094836c8eada69cd9f59828a20ed..0000000000000000000000000000000000000000
--- a/conversations/conv_003777.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
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-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 26.336147824935484,
-      "speaker_id": "3851"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8625/laugh/0046.wav",
-      "duration": 0.7676254553951327,
-      "start_time": 29.042593974195263,
-      "speaker_id": "8625"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_003785.json b/conversations/conv_003785.json
deleted file mode 100644
index 7f6de0ebb2ef9c0158d367e7411acadb1396b950..0000000000000000000000000000000000000000
--- a/conversations/conv_003785.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.098351376680544,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6300-39660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39660.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.904158408625869,
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-      "utterance_id": "3357-28375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3357-28375.flac |",
-      "real_speaker_id": "3357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.488558250324832,
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-      "duration_frames": 78671,
-      "overlap": false,
-      "utterance_id": "6300-39660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39660.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 96326
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.442548799903705,
-      "end_time": 23.967343511525243,
-      "duration": 6.52479471162154,
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-      "duration_frames": 104396,
-      "overlap": false,
-      "utterance_id": "1112-128136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1112-128136.flac |",
-      "real_speaker_id": "1112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.090188453511352,
-      "end_time": 29.9683660706347,
-      "duration": 5.878177617123351,
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-      "duration_frames": 94050,
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-      "utterance_id": "1112-128136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1112-128136.flac |",
-      "real_speaker_id": "1112",
-      "position_frames": 104396
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.46752028024747,
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-      "utterance_id": "6300-39660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39660.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 174997
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 1.1179689031359459,
-      "start_time": 16.22398217410891,
-      "speaker_id": "1112"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003788.json b/conversations/conv_003788.json
deleted file mode 100644
index 234da8ba0398adbd8806f8145555e936f68c6f5d..0000000000000000000000000000000000000000
--- a/conversations/conv_003788.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-130108.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-16807.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279771.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.75939008568563,
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-      "overlap": false,
-      "utterance_id": "4463-26851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-26851.flac |",
-      "real_speaker_id": "4463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.541380771857103,
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-      "overlap": false,
-      "utterance_id": "441-130108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-130108.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 59691
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.034909425980853,
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-      "utterance_id": "8242-279771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279771.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 110614
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4463/laugh/0011.wav",
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-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "speaker_id": "8242"
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-}
\ No newline at end of file
diff --git a/conversations/conv_003789.json b/conversations/conv_003789.json
deleted file mode 100644
index 6bd808fb3678db5384494a253b09ce9a5f91591f..0000000000000000000000000000000000000000
--- a/conversations/conv_003789.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "5424-291111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-291111.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2562-157263.flac |",
-      "real_speaker_id": "2562",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
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-    {
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-    {
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-    {
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-      "utterance_id": "5424-280358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-280358.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003793.json b/conversations/conv_003793.json
deleted file mode 100644
index c51df765f90735720c06b29e70ccc32dd2bee159..0000000000000000000000000000000000000000
--- a/conversations/conv_003793.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1841-150351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-150351.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "start_time": 10.524811927937103
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7059/laugh/0076.wav",
-      "duration": 1.12,
-      "start_time": 21.44255416806514,
-      "speaker_id": "7059"
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-    {
-      "event_class": "cough",
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-      "duration": 0.7896690218127157,
-      "start_time": 27.798241428169568,
-      "speaker_id": "7059"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003798.json b/conversations/conv_003798.json
deleted file mode 100644
index 66ffea037b4c70de9b625e7171dc5fb06c916663..0000000000000000000000000000000000000000
--- a/conversations/conv_003798.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.808912167438815,
-      "duration": 4.808912167438815,
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-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.248901143509758,
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-      "utterance_id": "1641-130503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130503.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.507526170507184,
-      "end_time": 17.291819087613,
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-      "overlap": false,
-      "utterance_id": "6670-296083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-296083.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.106876238823897,
-      "end_time": 24.725244491603554,
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-      "overlap": false,
-      "utterance_id": "1641-130504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130504.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.176988531597893,
-      "end_time": 29.515596720232292,
-      "duration": 4.338608188634399,
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-      "duration_frames": 69417,
-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 76942
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.207266883489158,
-      "end_time": 32.0,
-      "duration": 1.792733116510842,
-      "start_frame": 483316,
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-      "overlap": false,
-      "utterance_id": "1641-130504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130504.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 105893
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_8.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_17.wav",
-      "duration": 0.6050113378684807,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1641/laugh/0034.wav",
-      "duration": 1.08,
-      "start_time": 10.355578233705511,
-      "speaker_id": "1641"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003802.json b/conversations/conv_003802.json
deleted file mode 100644
index 69df7790e7a09dc4299388a6f38dba3d7924a017..0000000000000000000000000000000000000000
--- a/conversations/conv_003802.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.549073344218446,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "886-123272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123272.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123273.flac |",
-      "real_speaker_id": "886",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.857754948137668,
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-      "utterance_id": "7495-252341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-252341.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.240218778797527,
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-      "utterance_id": "886-123273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123273.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 78591
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.19299168696368,
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-      "duration_frames": 80133,
-      "overlap": true,
-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 68727
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.120128566237316,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123273.flac |",
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-      "position_frames": 129293
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "start_time": 16.008833168738892,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/886/laugh/0030.wav",
-      "duration": 0.8622598951084259,
-      "start_time": 21.234186378439826,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7495/laugh/0101.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003814.json b/conversations/conv_003814.json
deleted file mode 100644
index 45abb65a257494995c32fcbcb8fa5255c5327464..0000000000000000000000000000000000000000
--- a/conversations/conv_003814.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.599456059848471,
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-      "real_speaker_id": "1639",
-      "position_frames": 0
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-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 60185
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 58628,
-      "overlap": false,
-      "utterance_id": "1639-132848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.296811937274732,
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-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 156586
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003818.json b/conversations/conv_003818.json
deleted file mode 100644
index e453fa2b305c828768177c890bba6a7cb4b53fe8..0000000000000000000000000000000000000000
--- a/conversations/conv_003818.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.928495145321826,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6135-41994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41994.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "667-158816",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6135/laugh/0001.wav",
-      "duration": 1.66,
-      "start_time": 4.687294252715776,
-      "speaker_id": "6135"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7553/laugh/0001.wav",
-      "duration": 1.2531855991197363,
-      "start_time": 9.3942082781599,
-      "speaker_id": "7553"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/667/cough/0026.wav",
-      "duration": 1.08,
-      "start_time": 12.197895533454997,
-      "speaker_id": "667"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6135/cough/0034.wav",
-      "duration": 0.9,
-      "start_time": 20.20507211906726,
-      "speaker_id": "6135"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6135/laugh/0036.wav",
-      "duration": 1.7340761182049635,
-      "start_time": 30.265923881795036,
-      "speaker_id": "6135"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003822.json b/conversations/conv_003822.json
deleted file mode 100644
index a20c1e39d2dc780287c045357104241b5de6cf73..0000000000000000000000000000000000000000
--- a/conversations/conv_003822.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7659819590517274,
-      "duration": 3.7659819590517274,
-      "start_frame": 0,
-      "duration_frames": 60255,
-      "overlap": false,
-      "utterance_id": "5296-26679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.935885769323367,
-      "end_time": 9.045906480482747,
-      "duration": 5.110020711159381,
-      "start_frame": 62974,
-      "duration_frames": 81760,
-      "overlap": false,
-      "utterance_id": "5672-88367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88367.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.733773034295925,
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-      "duration": 6.593722452617199,
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-      "overlap": false,
-      "utterance_id": "5296-26680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.909772667523285,
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-      "duration": 4.226779590468247,
-      "start_frame": 270556,
-      "duration_frames": 67628,
-      "overlap": false,
-      "utterance_id": "5672-75791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-75791.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.81814992055316,
-      "end_time": 24.10569076189861,
-      "duration": 3.2875408413454514,
-      "start_frame": 333090,
-      "duration_frames": 52600,
-      "overlap": true,
-      "utterance_id": "5296-26680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 105499
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.09779191676978,
-      "end_time": 28.45245608982489,
-      "duration": 3.3546641730551094,
-      "start_frame": 401564,
-      "duration_frames": 53674,
-      "overlap": false,
-      "utterance_id": "5672-75791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-75791.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 67628
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.797245748090106,
-      "end_time": 32.0,
-      "duration": 3.2027542519098944,
-      "start_frame": 460755,
-      "duration_frames": 51244,
-      "overlap": false,
-      "utterance_id": "5296-26680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 158099
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
-      "duration": 16.838049886621317,
-      "start_time": 6.8141427484224755
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_19.wav",
-      "duration": 0.6158956916099774,
-      "start_time": 26.8368889463231
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_13.wav",
-      "duration": 1.007392290249433,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5296/laugh/0033.wav",
-      "duration": 0.9,
-      "start_time": 4.034330888466174,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5672/laugh/0007.wav",
-      "duration": 1.1030303941391717,
-      "start_time": 4.083677019444144,
-      "speaker_id": "5672"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5296/laugh/0010.wav",
-      "duration": 1.28,
-      "start_time": 27.39245433468229,
-      "speaker_id": "5296"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003825.json b/conversations/conv_003825.json
deleted file mode 100644
index f95d3fccbbf00ce7f7c2eeafd5f153df417fde6d..0000000000000000000000000000000000000000
--- a/conversations/conv_003825.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.482644665090884,
-      "duration": 6.482644665090884,
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-      "overlap": false,
-      "utterance_id": "362-123047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123047.flac |",
-      "real_speaker_id": "362",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.16574474073049,
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-      "duration_frames": 91835,
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-      "utterance_id": "7138-291943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291943.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.100977695260216,
-      "end_time": 18.826988061460682,
-      "duration": 5.726010366200466,
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-      "overlap": false,
-      "utterance_id": "362-123049",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123049.flac |",
-      "real_speaker_id": "362",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.426330225862273,
-      "end_time": 25.03613067297003,
-      "duration": 5.609800447107759,
-      "start_frame": 310821,
-      "duration_frames": 89756,
-      "overlap": false,
-      "utterance_id": "7138-73705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-73705.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.677511327586057,
-      "end_time": 31.298845090190675,
-      "duration": 5.621333762604616,
-      "start_frame": 410840,
-      "duration_frames": 89941,
-      "overlap": false,
-      "utterance_id": "2339-181101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2339-181101.flac |",
-      "real_speaker_id": "2339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.518932096210367,
-      "end_time": 32.0,
-      "duration": 0.4810679037896328,
-      "start_frame": 504302,
-      "duration_frames": 7697,
-      "overlap": false,
-      "utterance_id": "362-123047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123047.flac |",
-      "real_speaker_id": "362",
-      "position_frames": 103722
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79633.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/362/laugh/0082.wav",
-      "duration": 1.0,
-      "start_time": 6.75360991002723,
-      "speaker_id": "362"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7138/cough/0038.wav",
-      "duration": 1.3743474053931366,
-      "start_time": 12.937648479619538,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2339/laugh/0011.wav",
-      "duration": 1.14,
-      "start_time": 30.86,
-      "speaker_id": "2339"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003833.json b/conversations/conv_003833.json
deleted file mode 100644
index d70e27b05a5f353389b1a80109610bea29175ac3..0000000000000000000000000000000000000000
--- a/conversations/conv_003833.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.754465828643873,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.253709776035095,
-      "duration": 4.253709776035095,
-      "start_frame": 0,
-      "duration_frames": 68059,
-      "overlap": false,
-      "utterance_id": "886-123272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123272.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.551333592054507,
-      "end_time": 10.638939627985334,
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-      "duration_frames": 97401,
-      "overlap": true,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.84132552958105,
-      "end_time": 17.510150631859762,
-      "duration": 5.668825102278713,
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-      "duration_frames": 90701,
-      "overlap": false,
-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.00628762473844,
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-      "start_frame": 288100,
-      "duration_frames": 87985,
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-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 90701
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.21355019857757,
-      "end_time": 29.759834496989463,
-      "duration": 5.546284298411895,
-      "start_frame": 387416,
-      "duration_frames": 88740,
-      "overlap": false,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 97401
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.41989390473011,
-      "end_time": 31.754465828643873,
-      "duration": 1.3345719239137637,
-      "start_frame": 486718,
-      "duration_frames": 21353,
-      "overlap": true,
-      "utterance_id": "886-123273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123273.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "start_time": 1.5346331862493026
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "duration": 0.47146551197754427,
-      "start_time": 10.778001236162492,
-      "speaker_id": "3079"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/886/laugh/0038.wav",
-      "duration": 1.24,
-      "start_time": 10.453443044156568,
-      "speaker_id": "886"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/886/laugh/0073.wav",
-      "duration": 0.5178721570765923,
-      "start_time": 21.35861797276182,
-      "speaker_id": "886"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003834.json b/conversations/conv_003834.json
deleted file mode 100644
index 264b63b0bd6504e49cf5f2958332ceff96c1ce05..0000000000000000000000000000000000000000
--- a/conversations/conv_003834.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.042373108437626,
-      "duration": 5.042373108437626,
-      "start_frame": 0,
-      "duration_frames": 80677,
-      "overlap": false,
-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.704657254350939,
-      "end_time": 9.044452293042644,
-      "duration": 3.3397950386917055,
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-      "duration_frames": 53436,
-      "overlap": false,
-      "utterance_id": "664-129011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
-      "real_speaker_id": "664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.727698187399747,
-      "end_time": 16.262741109992714,
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-      "overlap": false,
-      "utterance_id": "1505-1304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1304.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.735378285016225,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
-      "real_speaker_id": "664",
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-      "utterance_id": "1505-1304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1304.flac |",
-      "real_speaker_id": "1505",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 80677
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5569/cough/0001.wav",
-      "duration": 0.96,
-      "start_time": 26.16494887465112,
-      "speaker_id": "5569"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003838.json b/conversations/conv_003838.json
deleted file mode 100644
index b6eeb6c2ef0297cdcb9ce82792eb56c3d5612931..0000000000000000000000000000000000000000
--- a/conversations/conv_003838.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.53391392899451,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 6.226112090409698,
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-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.92629557701737,
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-      "utterance_id": "4216-10192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
-      "real_speaker_id": "4216",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.975908407757277,
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-      "utterance_id": "1643-138089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1643-138089.flac |",
-      "real_speaker_id": "1643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.063911589656076,
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-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 99617
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.75713269721815,
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-      "duration": 4.776781231776361,
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-      "duration_frames": 76428,
-      "overlap": true,
-      "utterance_id": "4216-10164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10164.flac |",
-      "real_speaker_id": "4216",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "duration": 1.533038126636681,
-      "start_time": 18.841195106213746
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/164574.wav",
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-      "start_time": 0,
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-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4216/laugh/0066.wav",
-      "duration": 1.42,
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-      "speaker_id": "4216"
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-}
\ No newline at end of file
diff --git a/conversations/conv_003843.json b/conversations/conv_003843.json
deleted file mode 100644
index 8c2c1038cd89f6a850309f0547479e2e70286531..0000000000000000000000000000000000000000
--- a/conversations/conv_003843.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6695-252325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252325.flac |",
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-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252325.flac |",
-      "real_speaker_id": "6695",
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-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-72637.flac |",
-      "real_speaker_id": "4267",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "4267-287369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-287369.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252325.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 114240
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 15.896010941725088,
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_003855.json b/conversations/conv_003855.json
deleted file mode 100644
index cdc5fbf7558314180be79ae43102da4f4f13ef21..0000000000000000000000000000000000000000
--- a/conversations/conv_003855.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2270-3545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3545.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.978588171835993,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3547.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.240729538338247,
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-      "duration": 5.1493427486771095,
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-      "overlap": false,
-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7898-109860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7898-109860.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003858.json b/conversations/conv_003858.json
deleted file mode 100644
index a35c0edb239cea1067dc193b8f6284d6aae7cb9f..0000000000000000000000000000000000000000
--- a/conversations/conv_003858.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.244557622085896,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7437-96157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96157.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4859-22176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-22176.flac |",
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-    {
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 1.5356301043178955,
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_6.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4859/laugh/0090.wav",
-      "duration": 0.7189486848212876,
-      "start_time": 9.71990223594779,
-      "speaker_id": "4859"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7437/laugh/0060.wav",
-      "duration": 1.28,
-      "start_time": 26.597706585246886,
-      "speaker_id": "7437"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7437/cough/0064.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "7437"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003859.json b/conversations/conv_003859.json
deleted file mode 100644
index 122b1bb2be553c1164f87c9fff10ce0748bb5be4..0000000000000000000000000000000000000000
--- a/conversations/conv_003859.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.896287772800683,
-      "duration": 5.896287772800683,
-      "start_frame": 0,
-      "duration_frames": 94340,
-      "overlap": false,
-      "utterance_id": "2985-153202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2985-153202.flac |",
-      "real_speaker_id": "2985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.281696312978139,
-      "end_time": 10.265410782120778,
-      "duration": 3.9837144691426394,
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-      "utterance_id": "2148-6983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6983.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6189-21305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-21305.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.791356736780463,
-      "end_time": 21.328030488873836,
-      "duration": 5.536673752093371,
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-      "duration_frames": 88586,
-      "overlap": false,
-      "utterance_id": "6189-21305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-21305.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 80323
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.08130510314505,
-      "end_time": 26.61168421554405,
-      "duration": 4.530379112399,
-      "start_frame": 353300,
-      "duration_frames": 72486,
-      "overlap": false,
-      "utterance_id": "2148-6981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6981.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.34209638658398,
-      "end_time": 32.0,
-      "duration": 4.657903613416021,
-      "start_frame": 437473,
-      "duration_frames": 74526,
-      "overlap": false,
-      "utterance_id": "6189-21305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-21305.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 168909
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
-      "duration": 25.773005468927032,
-      "start_time": 4.93830760343706
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
-      "duration": 1.3663385092428206,
-      "start_time": 27.991591771462275
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
-      "duration": 0.8380952380952381,
-      "start_time": 14.776904304414714
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6189/cough/0049.wav",
-      "duration": 0.857878903320134,
-      "start_time": 26.29049824293056,
-      "speaker_id": "6189"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003863.json b/conversations/conv_003863.json
deleted file mode 100644
index 6083dbb86f1085618a1f71b3f786da429d64f943..0000000000000000000000000000000000000000
--- a/conversations/conv_003863.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.926259763924739,
-      "end_time": 11.74332289589776,
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-      "duration_frames": 93073,
-      "overlap": false,
-      "utterance_id": "730-359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-359.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.621151144835254,
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-      "duration_frames": 70043,
-      "overlap": false,
-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 79935
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.179279566469873,
-      "end_time": 21.73421771370275,
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-      "overlap": false,
-      "utterance_id": "730-359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-359.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 93073
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.14141232481057,
-      "end_time": 25.976515289258142,
-      "duration": 3.8351029644475703,
-      "start_frame": 354262,
-      "duration_frames": 61361,
-      "overlap": false,
-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 149978
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.094854448205645,
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-      "start_frame": 433517,
-      "duration_frames": 49861,
-      "overlap": false,
-      "utterance_id": "730-360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-360.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.380090330943887,
-      "end_time": 32.0,
-      "duration": 1.6199096690561134,
-      "start_frame": 486081,
-      "duration_frames": 25918,
-      "overlap": false,
-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 211339
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
-      "duration": 25.530306112199682,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5867/laugh/0029.wav",
-      "duration": 1.2508427804252649,
-      "start_time": 0,
-      "speaker_id": "5867"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/730/cough/0142.wav",
-      "duration": 0.46473638805696726,
-      "start_time": 11.791066438279017,
-      "speaker_id": "730"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5867/laugh/0073.wav",
-      "duration": 1.1956843763428513,
-      "start_time": 17.15114229744209,
-      "speaker_id": "5867"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/730/cough/0073.wav",
-      "duration": 0.4211914312438425,
-      "start_time": 30.299889086707065,
-      "speaker_id": "730"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003864.json b/conversations/conv_003864.json
deleted file mode 100644
index e4f6499e8f2e28730140c165bc05c61654d91320..0000000000000000000000000000000000000000
--- a/conversations/conv_003864.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 3.471140239363236,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7097-73688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-73688.flac |",
-      "real_speaker_id": "7097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7157822653829395,
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-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.924029221308402,
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-      "utterance_id": "8250-286289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-286289.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.098983630597857,
-      "end_time": 20.20578873705511,
-      "duration": 6.10680510645725,
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-      "duration_frames": 97708,
-      "overlap": false,
-      "utterance_id": "7097-80037",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-80037.flac |",
-      "real_speaker_id": "7097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.159545133146892,
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-      "duration": 4.369594985552826,
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-      "duration_frames": 69913,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 73886
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.077867001353937,
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-      "start_frame": 417245,
-      "duration_frames": 52462,
-      "overlap": false,
-      "utterance_id": "8250-286289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-286289.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 79519
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.017365094207925,
-      "end_time": 32.0,
-      "duration": 1.9826349057920751,
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-      "duration_frames": 31722,
-      "overlap": false,
-      "utterance_id": "7097-73688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-73688.flac |",
-      "real_speaker_id": "7097",
-      "position_frames": 55538
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
-      "duration": 14.391213868476827,
-      "start_time": 14.91317793646316
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
-      "duration": 0.21675736961451247,
-      "start_time": 30.942363587433526
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
-      "duration": 4.019815367294921,
-      "start_time": 11.380006021984293
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7097/laugh/0058.wav",
-      "duration": 1.117156269351806,
-      "start_time": 14.938829082180503,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7097/cough/0071.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "7097"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003872.json b/conversations/conv_003872.json
deleted file mode 100644
index 02fe328882c0bca6abb6dd077e0d04503b36130f..0000000000000000000000000000000000000000
--- a/conversations/conv_003872.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.378345649223448,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.205390555387015,
-      "duration": 4.205390555387015,
-      "start_frame": 0,
-      "duration_frames": 67286,
-      "overlap": false,
-      "utterance_id": "2272-152262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152262.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.656353775031255,
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-      "overlap": false,
-      "utterance_id": "2272-152265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152265.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.862122430059827,
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-      "duration": 3.63242833574957,
-      "start_frame": 157793,
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-      "overlap": false,
-      "utterance_id": "288-121741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-121741.flac |",
-      "real_speaker_id": "288",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 49179
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152262.flac |",
-      "real_speaker_id": "2272",
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-  "background_events": [],
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003875.json b/conversations/conv_003875.json
deleted file mode 100644
index 79e2fd51eacdf164ae334bfc9cb4624ae466b5e7..0000000000000000000000000000000000000000
--- a/conversations/conv_003875.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4397-15678",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15678.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.7205298217114855,
-      "end_time": 13.698065163127469,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
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-      "utterance_id": "6518-66465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66465.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 111640
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.596290676080635,
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-      "overlap": false,
-      "utterance_id": "6518-66465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66465.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 77923
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.433551475733488,
-      "end_time": 32.0,
-      "duration": 1.5664485242665123,
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-      "utterance_id": "4397-15678",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15678.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 89794
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003879.json b/conversations/conv_003879.json
deleted file mode 100644
index 2fd77470938928d964f150d875ec8ef07d71354b..0000000000000000000000000000000000000000
--- a/conversations/conv_003879.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
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-      "utterance_id": "1569-141081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.039620132250912,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 92583
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.57374600073974,
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-      "utterance_id": "1280-135136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 76241
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.646905892123588,
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-      "duration": 2.3530941078764123,
-      "start_frame": 474350,
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-      "overlap": false,
-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 195369
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 27.315863753980544,
-      "speaker_id": "1280"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1780/laugh/0064.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 28.402187800208445,
-      "speaker_id": "1780"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003880.json b/conversations/conv_003880.json
deleted file mode 100644
index 1088437f25bf8852afa7e73f082a0950a8da2eba..0000000000000000000000000000000000000000
--- a/conversations/conv_003880.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "duration": 4.99926477025366,
-      "start_frame": 0,
-      "duration_frames": 79988,
-      "overlap": false,
-      "utterance_id": "2194-141248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141248.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.583902409932069,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-258283.flac |",
-      "real_speaker_id": "8347",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52159.flac |",
-      "real_speaker_id": "5874",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141248.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 79988
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-    {
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-      "utterance_id": "5874-52160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52160.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.6538729858417938,
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-      "duration_frames": 42461,
-      "overlap": false,
-      "utterance_id": "2194-150469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-150469.flac |",
-      "real_speaker_id": "2194",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5874/cough/0019.wav",
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-      "start_time": 9.967776317946234,
-      "speaker_id": "5874"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5874/cough/0160.wav",
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-      "start_time": 22.22555324106694,
-      "speaker_id": "5874"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2194/laugh/0020.wav",
-      "duration": 0.5546518375256183,
-      "start_time": 31.44534816247438,
-      "speaker_id": "2194"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003896.json b/conversations/conv_003896.json
deleted file mode 100644
index 3617a07ecfcaa91db578494d39afd2c330354d41..0000000000000000000000000000000000000000
--- a/conversations/conv_003896.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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\ No newline at end of file
diff --git a/conversations/conv_003906.json b/conversations/conv_003906.json
deleted file mode 100644
index 3a018d298b3a1dbc810bf6130a0b1aa5be4e422e..0000000000000000000000000000000000000000
--- a/conversations/conv_003906.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "4687-28005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-28005.flac |",
-      "real_speaker_id": "4687",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
-      "start_time": 4.941947282874412,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
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-      "position_frames": 104101
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-      "utterance_id": "7833-102239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 85986
-    }
-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003910.json b/conversations/conv_003910.json
deleted file mode 100644
index 83b09f41bed26dc7b64a49dcf38f08dce9bcb585..0000000000000000000000000000000000000000
--- a/conversations/conv_003910.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": 0,
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-      "real_speaker_id": "593",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.53749994513857,
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-      "duration": 1.4625000548614295,
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-}
\ No newline at end of file
diff --git a/conversations/conv_003911.json b/conversations/conv_003911.json
deleted file mode 100644
index 1f9f27c2b7b9077922addcced1b6141e51f906ae..0000000000000000000000000000000000000000
--- a/conversations/conv_003911.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 132695
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "2348"
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-}
\ No newline at end of file
diff --git a/conversations/conv_003921.json b/conversations/conv_003921.json
deleted file mode 100644
index b7e67f20416693c6a3fcb8c6d6fb849f78844a3e..0000000000000000000000000000000000000000
--- a/conversations/conv_003921.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4021-130137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-130137.flac |",
-      "real_speaker_id": "4021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.89412598081882,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282380.flac |",
-      "real_speaker_id": "9000",
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-      "speaker_id": 1,
-      "start_time": 14.618695995378015,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4021-180238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-180238.flac |",
-      "real_speaker_id": "4021",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 28.05117017252194,
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-      "duration_frames": 63181,
-      "overlap": false,
-      "utterance_id": "1252-134983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
-      "real_speaker_id": "1252",
-      "position_frames": 176596
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "event_class": "Dishes",
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-      "event_class": "cough",
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-      "speaker_id": "1252"
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-}
\ No newline at end of file
diff --git a/conversations/conv_003926.json b/conversations/conv_003926.json
deleted file mode 100644
index 6b43fdb9b844179443d5e1acd04d2f622e2459bd..0000000000000000000000000000000000000000
--- a/conversations/conv_003926.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1633-180292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-180292.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
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-      "real_speaker_id": "7608",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-6379.flac |",
-      "real_speaker_id": "1578",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.73520329712625,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-140045.flac |",
-      "real_speaker_id": "1578",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "1633",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 74214
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "duration": 1.28,
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-      "speaker_id": "1633"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003930.json b/conversations/conv_003930.json
deleted file mode 100644
index 32c0737c835a72a2516d799861160a5b370f3f41..0000000000000000000000000000000000000000
--- a/conversations/conv_003930.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.69006388234123,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "position_frames": 0
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-    {
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-      "overlap": true,
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-      "real_speaker_id": "4161",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_003937.json b/conversations/conv_003937.json
deleted file mode 100644
index 51a580f796d1fe4bcde026e0ae969ddc99543681..0000000000000000000000000000000000000000
--- a/conversations/conv_003937.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1643-138089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1643-138089.flac |",
-      "real_speaker_id": "1643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.835752286020616,
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-}
\ No newline at end of file
diff --git a/conversations/conv_003947.json b/conversations/conv_003947.json
deleted file mode 100644
index 2bfe414db795e995da09e7aac8f809d3ed5546a7..0000000000000000000000000000000000000000
--- a/conversations/conv_003947.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-75939.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_003951.json b/conversations/conv_003951.json
deleted file mode 100644
index ca7d1ceaea2573cc43c14deaf7b467caf9816ec1..0000000000000000000000000000000000000000
--- a/conversations/conv_003951.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_003960.json b/conversations/conv_003960.json
deleted file mode 100644
index 4c7e1e6633af3bd71831da1414121ac034618cdb..0000000000000000000000000000000000000000
--- a/conversations/conv_003960.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "speaker_id": "2792"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_003967.json b/conversations/conv_003967.json
deleted file mode 100644
index a83ecd33206bdd573c7a92ccf078ab2eac57506a..0000000000000000000000000000000000000000
--- a/conversations/conv_003967.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.568225033760794,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233361.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
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-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 99106
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.20929533372598,
-      "end_time": 21.079055423913225,
-      "duration": 3.8697600901872455,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 183324
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.887135623812185,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 245240
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.012148476410896,
-      "end_time": 32.0,
-      "duration": 4.987851523589104,
-      "start_frame": 432194,
-      "duration_frames": 79805,
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-      "utterance_id": "7898-273041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7898-273041.flac |",
-      "real_speaker_id": "7898",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 26.06942323295388
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_003971.json b/conversations/conv_003971.json
deleted file mode 100644
index 361bf2c1becf7576ccdfb70d22080338365dafa2..0000000000000000000000000000000000000000
--- a/conversations/conv_003971.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-86679.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-57347.flac |",
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-      "speaker_id": 1,
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-      "real_speaker_id": "1222",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.272398994362277,
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-      "start_frame": 500358,
-      "duration_frames": 11641,
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-      "utterance_id": "1222-133834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
-      "real_speaker_id": "1222",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-      "event_class": "Dishes",
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-      "duration": 1.24,
-      "start_time": 9.042664983923586,
-      "speaker_id": "5951"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003976.json b/conversations/conv_003976.json
deleted file mode 100644
index 6e0507651afd1d619e946c6949192403d9e00c8b..0000000000000000000000000000000000000000
--- a/conversations/conv_003976.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-14653.flac |",
-      "real_speaker_id": "1212",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-126446.flac |",
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-      "real_speaker_id": "568",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_003984.json b/conversations/conv_003984.json
deleted file mode 100644
index 51b1b4d5be41457dbc5eef098306ab0a9a58473f..0000000000000000000000000000000000000000
--- a/conversations/conv_003984.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 86478
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-  ],
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6853/cough/0039.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5767/laugh/0001.wav",
-      "duration": 1.0851689180162933,
-      "start_time": 21.352115943709958,
-      "speaker_id": "5767"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003988.json b/conversations/conv_003988.json
deleted file mode 100644
index 65399895560d4762f41a6f340ef32fa97f701275..0000000000000000000000000000000000000000
--- a/conversations/conv_003988.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.478188839220002,
-      "duration": 4.478188839220002,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.0041918915523365,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 66514,
-      "overlap": false,
-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.137433098530572,
-      "end_time": 20.660805592258882,
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-      "overlap": true,
-      "utterance_id": "7188-107627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 73525
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.58093328954087,
-      "end_time": 25.613975538526425,
-      "duration": 3.0330422489855553,
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-      "duration_frames": 48528,
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-      "utterance_id": "7188-107627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 177898
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.287598836506913,
-      "end_time": 32.0,
-      "duration": 5.712401163493087,
-      "start_frame": 420601,
-      "duration_frames": 91398,
-      "overlap": false,
-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 71651
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-    {
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-      "duration": 1.32,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003992.json b/conversations/conv_003992.json
deleted file mode 100644
index 11e2ae3aa9891e58b79e9e7207cf599a786be1ce..0000000000000000000000000000000000000000
--- a/conversations/conv_003992.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4659-26488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-26488.flac |",
-      "real_speaker_id": "4659",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "850-131003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131003.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "4659-26489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-26489.flac |",
-      "real_speaker_id": "4659",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.268787505457382,
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-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.209316776563234,
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-      "duration": 2.7906832234367656,
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-      "duration_frames": 44650,
-      "overlap": false,
-      "utterance_id": "850-131004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131004.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_11.wav",
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-      "duration": 0.88,
-      "start_time": 31.12,
-      "speaker_id": "850"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_003999.json b/conversations/conv_003999.json
deleted file mode 100644
index 77b80b6fd4b334efb560b092190754df59b4744f..0000000000000000000000000000000000000000
--- a/conversations/conv_003999.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7338-92154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92154.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.458955575962832,
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-      "utterance_id": "4712-93896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-93896.flac |",
-      "real_speaker_id": "4712",
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-      "utterance_id": "7338-92139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92139.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.533346962255514,
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-      "overlap": false,
-      "utterance_id": "4712-93896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-93896.flac |",
-      "real_speaker_id": "4712",
-      "position_frames": 95872
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.05436370336374,
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-      "duration": 0.945636296636259,
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-      "utterance_id": "3783-176659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3783-176659.flac |",
-      "real_speaker_id": "3783",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_004001.json b/conversations/conv_004001.json
deleted file mode 100644
index ee89d5590d0bb5085b7bfa063bd4fc4e26b2714c..0000000000000000000000000000000000000000
--- a/conversations/conv_004001.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7475566267549993,
-      "duration": 3.7475566267549993,
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-      "duration_frames": 59960,
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-      "utterance_id": "6181-216552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "7258-91902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91902.flac |",
-      "real_speaker_id": "7258",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 138054
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.4423033300051,
-      "end_time": 29.740734922383844,
-      "duration": 3.298431592378744,
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-      "duration_frames": 52774,
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-      "utterance_id": "6181-216552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 59960
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.326502062549594,
-      "end_time": 32.0,
-      "duration": 1.6734979374504064,
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-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 220719
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-      "event_class": "Frying",
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-      "event_class": "Dishes",
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-      "start_time": 0,
-      "speaker_id": "6181"
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 0.8867528742968878,
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-      "speaker_id": "2696"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2696/laugh/0062.wav",
-      "duration": 1.32,
-      "start_time": 28.91642206752255,
-      "speaker_id": "2696"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004017.json b/conversations/conv_004017.json
deleted file mode 100644
index 97c0daf77ec3b6b3db728241b833077672f6d44c..0000000000000000000000000000000000000000
--- a/conversations/conv_004017.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.676679720708034,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.854514119048192,
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-      "start_frame": 0,
-      "duration_frames": 93672,
-      "overlap": false,
-      "utterance_id": "3271-169289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.271302407941052,
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-      "duration": 6.788979965550607,
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-      "overlap": false,
-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.164308007220155,
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-      "duration": 5.126368063119946,
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-      "duration_frames": 82021,
-      "overlap": true,
-      "utterance_id": "6153-59414",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-59414.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.684373265912278,
-      "end_time": 25.388998089784614,
-      "duration": 6.704624823872335,
-      "start_frame": 298949,
-      "duration_frames": 107273,
-      "overlap": false,
-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 108623
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.52334795520409,
-      "end_time": 31.676679720708034,
-      "duration": 6.153331765503942,
-      "start_frame": 408373,
-      "duration_frames": 98453,
-      "overlap": false,
-      "utterance_id": "6153-59414",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-59414.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 82021
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "start_time": 3.897111936443593
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3271/cough/0081.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 5.29810460740857,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6153/laugh/0108.wav",
-      "duration": 1.24,
-      "start_time": 18.54726343168639,
-      "speaker_id": "6153"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004021.json b/conversations/conv_004021.json
deleted file mode 100644
index 7c78895671c644d455ee62460b9462726980ac2d..0000000000000000000000000000000000000000
--- a/conversations/conv_004021.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.65526585039409,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8072-284670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.701365371190339,
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-      "overlap": false,
-      "utterance_id": "8072-284670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6215-62347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-62347.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.948665803962317,
-      "end_time": 19.92112160232463,
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-      "utterance_id": "163-121908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.77625398432435,
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-      "duration_frames": 82826,
-      "overlap": false,
-      "utterance_id": "6215-62347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-62347.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 75245
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.915703141167924,
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-      "overlap": false,
-      "utterance_id": "163-122947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-122947.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.935355691718925,
-      "end_time": 31.65526585039409,
-      "duration": 0.719910158675166,
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-      "duration_frames": 11518,
-      "overlap": true,
-      "utterance_id": "8072-284670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8072/cough/0002.wav",
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-      "speaker_id": "8072"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004026.json b/conversations/conv_004026.json
deleted file mode 100644
index 907380997981b4bfb50af33f80f74b352d8e6a66..0000000000000000000000000000000000000000
--- a/conversations/conv_004026.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.216147937436842,
-      "duration": 5.216147937436842,
-      "start_frame": 0,
-      "duration_frames": 83458,
-      "overlap": false,
-      "utterance_id": "8772-270777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "3513-7741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-7741.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.976300197411362,
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-      "utterance_id": "8747-293952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.931516335926464,
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-      "duration_frames": 90198,
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-      "utterance_id": "3513-7741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-7741.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 60438
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.968092647928714,
-      "end_time": 26.317942412564506,
-      "duration": 3.349849764635791,
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-      "overlap": false,
-      "utterance_id": "8772-270777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 83458
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 5.095081812475698,
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-      "overlap": false,
-      "utterance_id": "8772-295710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-295710.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8747/laugh/0065.wav",
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-      "start_time": 9.514426640680233,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3513/laugh/0027.wav",
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004030.json b/conversations/conv_004030.json
deleted file mode 100644
index 078c99460cdf434a5b162b972ba4602927800304..0000000000000000000000000000000000000000
--- a/conversations/conv_004030.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.98321526349845,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7148955202294327,
-      "duration": 3.7148955202294327,
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-      "overlap": false,
-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.780092249611616,
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-      "real_speaker_id": "7733",
-      "position_frames": 126695
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-      "segment_id": "seg0005",
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-      "utterance_id": "38-121024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/38-121024.flac |",
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-      "start_time": 0,
-      "speaker_id": "7733"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.6410537374873247,
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-      "speaker_id": "7011"
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-      "speaker_id": "7733"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004037.json b/conversations/conv_004037.json
deleted file mode 100644
index 06a65cc38958f3a9585c35a687a38ebffa5c4c63..0000000000000000000000000000000000000000
--- a/conversations/conv_004037.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2895-8663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.669684808595783,
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-      "overlap": false,
-      "utterance_id": "7189-74189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-74189.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "2895-8662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8662.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.54523182535773,
-      "end_time": 21.218927197644874,
-      "duration": 3.673695372287143,
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-      "duration_frames": 58779,
-      "overlap": false,
-      "utterance_id": "2895-8663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 61714
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.484289966782168,
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-      "utterance_id": "7189-75356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-75356.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
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-    {
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-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2895/laugh/0007.wav",
-      "duration": 0.8642405792917209,
-      "start_time": 0,
-      "speaker_id": "2895"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004040.json b/conversations/conv_004040.json
deleted file mode 100644
index 20ac57f960f6867ecb2fa29f45de878ff8e68cc9..0000000000000000000000000000000000000000
--- a/conversations/conv_004040.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "utterance_id": "5911-52164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-52164.flac |",
-      "real_speaker_id": "5911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-52164.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39615.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-52164.flac |",
-      "real_speaker_id": "5911",
-      "position_frames": 158098
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.139720067674382,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 79185
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-      "event_class": "laugh",
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-      "speaker_id": "6726"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004056.json b/conversations/conv_004056.json
deleted file mode 100644
index c58f633109f34ee9d15f1e215f296e2a0d902e76..0000000000000000000000000000000000000000
--- a/conversations/conv_004056.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.201932682179017,
-      "duration": 5.201932682179017,
-      "start_frame": 0,
-      "duration_frames": 83230,
-      "overlap": false,
-      "utterance_id": "5772-43330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43330.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7398-98876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98876.flac |",
-      "real_speaker_id": "7398",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2208-11020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.605924363957477,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98880.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.571601757726977,
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-      "utterance_id": "2208-11020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 74480
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.7024274902768,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98880.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 57303
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_004060.json b/conversations/conv_004060.json
deleted file mode 100644
index 7024c6f080e02c22cf38279f2e9bcaf9cd9468b5..0000000000000000000000000000000000000000
--- a/conversations/conv_004060.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.453285151016566,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "39-121914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121914.flac |",
-      "real_speaker_id": "39",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.276213233144565,
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-      "utterance_id": "1463-134465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
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-      "real_speaker_id": "1463",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121916.flac |",
-      "real_speaker_id": "39",
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-      "event_class": "laugh",
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-      "speaker_id": "39"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004067.json b/conversations/conv_004067.json
deleted file mode 100644
index 21ea2fb8267fd0194add141719abc9512ad07c82..0000000000000000000000000000000000000000
--- a/conversations/conv_004067.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.723289632788713,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "5157-47239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47239.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "start_time": 3.97537294293721,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19373.flac |",
-      "real_speaker_id": "5261",
-      "position_frames": 0
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-      "utterance_id": "5157-47238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47238.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.42763967609208,
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-      "duration_frames": 76513,
-      "overlap": false,
-      "utterance_id": "5261-19371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19371.flac |",
-      "real_speaker_id": "5261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.46366470059845,
-      "end_time": 30.723289632788713,
-      "duration": 6.259624932190265,
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-      "overlap": true,
-      "utterance_id": "5157-47239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47239.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 56046
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_004071.json b/conversations/conv_004071.json
deleted file mode 100644
index 8d6270cba02de0acdafcd4fc682d08f536e0ee31..0000000000000000000000000000000000000000
--- a/conversations/conv_004071.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "32-21631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21631.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5911.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21631.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 81732
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "3118-5911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5911.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 72991
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.7135870048972,
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-      "duration_frames": 78965,
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-      "utterance_id": "4226-185488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-185488.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.78855522770399,
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-      "duration": 3.2114447722960087,
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-      "overlap": false,
-      "utterance_id": "3118-5912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5912.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4226/laugh/0008.wav",
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-      "speaker_id": "4226"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3118/laugh/0003.wav",
-      "duration": 0.7081092051244288,
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-      "speaker_id": "3118"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004076.json b/conversations/conv_004076.json
deleted file mode 100644
index 46ca60ab08c0eedc93db257132db8a846c86ca91..0000000000000000000000000000000000000000
--- a/conversations/conv_004076.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.051866968903553,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.083461262007068,
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-      "overlap": false,
-      "utterance_id": "1595-132753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-132753.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.290705308000966,
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-      "duration_frames": 63972,
-      "overlap": true,
-      "utterance_id": "1595-138031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.07206950096407,
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-      "duration": 4.219892613541438,
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-      "utterance_id": "1595-138031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 63972
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.971809441964908,
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-      "utterance_id": "1343-158781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158781.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.523339347926516,
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-      "duration_frames": 104456,
-      "overlap": false,
-      "utterance_id": "1595-132753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-132753.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 81892
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1595/cough/0109.wav",
-      "duration": 1.2021384458775697,
-      "start_time": 16.136366006044426,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1343/laugh/0016.wav",
-      "duration": 1.12,
-      "start_time": 22.07597802821605,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1343/cough/0057.wav",
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-      "start_time": 24.007197338627424,
-      "speaker_id": "1343"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004083.json b/conversations/conv_004083.json
deleted file mode 100644
index 861a31004f2db12535e32a242013c6f5b9c50c8f..0000000000000000000000000000000000000000
--- a/conversations/conv_004083.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.311902551637793,
-      "duration": 6.311902551637793,
-      "start_frame": 0,
-      "duration_frames": 100990,
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-      "utterance_id": "402-130001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-130001.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-125880.flac |",
-      "real_speaker_id": "402",
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7756-84187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-84187.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.359867953660807,
-      "end_time": 23.04884721005271,
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-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.502126809331415,
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-      "utterance_id": "7756-114724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-114724.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.7200393124459,
-      "end_time": 32.0,
-      "duration": 3.2799606875541016,
-      "start_frame": 459520,
-      "duration_frames": 52479,
-      "overlap": false,
-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 75023
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.835201579080844,
-      "start_time": 11.301689663070528
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
-      "duration": 0.31396825396825395,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/402/cough/0090.wav",
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-      "start_time": 12.433889930707332,
-      "speaker_id": "402"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7756/laugh/0005.wav",
-      "duration": 1.44,
-      "start_time": 24.734490787569023,
-      "speaker_id": "7756"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2882/cough/0032.wav",
-      "duration": 1.0289095363742176,
-      "start_time": 27.502204170828552,
-      "speaker_id": "2882"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004088.json b/conversations/conv_004088.json
deleted file mode 100644
index 6ffef96d44dffe7a0654d9704631faccf9bf9520..0000000000000000000000000000000000000000
--- a/conversations/conv_004088.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.412920570163024,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.969373184803455,
-      "duration": 6.969373184803455,
-      "start_frame": 0,
-      "duration_frames": 111509,
-      "overlap": false,
-      "utterance_id": "6777-76701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76701.flac |",
-      "real_speaker_id": "6777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 8.160858204040473,
-      "end_time": 12.72999226157292,
-      "duration": 4.569134057532447,
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-      "duration_frames": 73106,
-      "overlap": false,
-      "utterance_id": "3314-159392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-159392.flac |",
-      "real_speaker_id": "3314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.225260728028047,
-      "end_time": 17.991396905101084,
-      "duration": 5.766136177073035,
-      "start_frame": 195604,
-      "duration_frames": 92258,
-      "overlap": true,
-      "utterance_id": "6038-56777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.26117513514654,
-      "end_time": 24.735606938436042,
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-      "start_frame": 308178,
-      "duration_frames": 87590,
-      "overlap": false,
-      "utterance_id": "6777-76694",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76694.flac |",
-      "real_speaker_id": "6777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.161958742222396,
-      "end_time": 31.412920570163024,
-      "duration": 6.2509618279406265,
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-      "duration_frames": 100015,
-      "overlap": false,
-      "utterance_id": "6038-56777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 92258
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.5924261837001383,
-      "start_time": 30.143480217559194
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6777/cough/0105.wav",
-      "duration": 1.2,
-      "start_time": 6.9850043497527645,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6038/laugh/0038.wav",
-      "duration": 0.96,
-      "start_time": 18.08196394723684,
-      "speaker_id": "6038"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6777/laugh/0066.wav",
-      "duration": 1.16,
-      "start_time": 24.802064158676238,
-      "speaker_id": "6777"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004095.json b/conversations/conv_004095.json
deleted file mode 100644
index d1a6619ec6765262f1562f86a054139b475563a0..0000000000000000000000000000000000000000
--- a/conversations/conv_004095.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.18267605474424,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.731417941018397,
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-      "duration_frames": 91702,
-      "overlap": false,
-      "utterance_id": "3618-178097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-178097.flac |",
-      "real_speaker_id": "3618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.976919553237318,
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-      "utterance_id": "8138-287657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-287657.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.129947792446263,
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-      "duration_frames": 98682,
-      "overlap": false,
-      "utterance_id": "3618-175930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175930.flac |",
-      "real_speaker_id": "3618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.741952221473444,
-      "end_time": 25.514511916213998,
-      "duration": 4.772559694740556,
-      "start_frame": 331871,
-      "duration_frames": 76360,
-      "overlap": true,
-      "utterance_id": "8138-293531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293531.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.143520111647344,
-      "end_time": 31.18267605474424,
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-      "start_frame": 418296,
-      "duration_frames": 80626,
-      "overlap": true,
-      "utterance_id": "4748-25901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-25901.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
-      "duration": 0.6206349206349207,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.28,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004099.json b/conversations/conv_004099.json
deleted file mode 100644
index 1481b57e0b053984a429fcffbc195c5f2658c72c..0000000000000000000000000000000000000000
--- a/conversations/conv_004099.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.282936000712435,
-      "duration": 5.282936000712435,
-      "start_frame": 0,
-      "duration_frames": 84526,
-      "overlap": false,
-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.365266497873401,
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-      "duration_frames": 81638,
-      "overlap": false,
-      "utterance_id": "1629-139707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139707.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.135139965697833,
-      "end_time": 15.19748198708223,
-      "duration": 3.0623420213843966,
-      "start_frame": 194162,
-      "duration_frames": 48997,
-      "overlap": false,
-      "utterance_id": "957-132537",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132537.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.17178173555533,
-      "end_time": 22.440371164717625,
-      "duration": 6.268589429162292,
-      "start_frame": 258748,
-      "duration_frames": 100297,
-      "overlap": false,
-      "utterance_id": "957-132568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.88919227987371,
-      "end_time": 26.206219652122176,
-      "duration": 3.3170273722484644,
-      "start_frame": 366227,
-      "duration_frames": 53072,
-      "overlap": false,
-      "utterance_id": "1629-139707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139707.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 81638
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.607422737489486,
-      "end_time": 30.799091305656866,
-      "duration": 4.1916685681673815,
-      "start_frame": 425718,
-      "duration_frames": 67066,
-      "overlap": false,
-      "utterance_id": "957-132568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 100297
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.21489919474042,
-      "end_time": 32.0,
-      "duration": 0.7851008052595816,
-      "start_frame": 499438,
-      "duration_frames": 12561,
-      "overlap": false,
-      "utterance_id": "1629-139710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139710.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_3.wav",
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-      "start_time": 6.684168528466182
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/232915.wav",
-      "duration": 4.068775510204081,
-      "start_time": 10.954175715784642
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1723/cough/0026.wav",
-      "duration": 1.3967529252643318,
-      "start_time": 0,
-      "speaker_id": "1723"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/957/laugh/0077.wav",
-      "duration": 0.8367779511262617,
-      "start_time": 15.274860989872831,
-      "speaker_id": "957"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004105.json b/conversations/conv_004105.json
deleted file mode 100644
index bac5da9da7b1f73d0ae890c756ee5d8d8fed0d76..0000000000000000000000000000000000000000
--- a/conversations/conv_004105.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.131843943437851,
-      "duration": 6.131843943437851,
-      "start_frame": 0,
-      "duration_frames": 98109,
-      "overlap": false,
-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.077561913238029,
-      "end_time": 13.637535061062918,
-      "duration": 6.559973147824889,
-      "start_frame": 113240,
-      "duration_frames": 104959,
-      "overlap": false,
-      "utterance_id": "1901-146686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-146686.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.547240833000693,
-      "end_time": 19.985820244223724,
-      "duration": 5.438579411223033,
-      "start_frame": 232755,
-      "duration_frames": 87017,
-      "overlap": false,
-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 98109
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1901-60017",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-60017.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1901/laugh/0077.wav",
-      "duration": 1.52,
-      "start_time": 30.48,
-      "speaker_id": "1901"
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-    {
-      "event_class": "cough",
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-      "start_time": 30.912665813957766,
-      "speaker_id": "1901"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004108.json b/conversations/conv_004108.json
deleted file mode 100644
index e18c08bb1d03a564e4b449d3b9065db34fd966fb..0000000000000000000000000000000000000000
--- a/conversations/conv_004108.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "166-122789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-122789.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128283.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-122789.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 81295
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "5854-50960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-50960.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.05890910478211,
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-      "utterance_id": "2574-128282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128282.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.90329255616152,
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-      "duration_frames": 17547,
-      "overlap": false,
-      "utterance_id": "166-352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "duration": 1.16,
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-      "speaker_id": "166"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_004109.json b/conversations/conv_004109.json
deleted file mode 100644
index 6a77e1292335df649a0ae1c54ff8d4bf1f9b8222..0000000000000000000000000000000000000000
--- a/conversations/conv_004109.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-102526.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88489.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88484.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.80521575712262,
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-      "overlap": false,
-      "utterance_id": "2148-6983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6983.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7095-88489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88489.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 76257
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "speaker_id": "7095"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004113.json b/conversations/conv_004113.json
deleted file mode 100644
index 906880301837328e3c829531ea88b549c58c078f..0000000000000000000000000000000000000000
--- a/conversations/conv_004113.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.805853385575148,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3972-170212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3972-170212.flac |",
-      "real_speaker_id": "3972",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "3972-5791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3972-5791.flac |",
-      "real_speaker_id": "3972",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6353",
-      "position_frames": 85334
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "208-126851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126851.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.043355454729426,
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-      "utterance_id": "3972-5791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3972-5791.flac |",
-      "real_speaker_id": "3972",
-      "position_frames": 61192
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_004118.json b/conversations/conv_004118.json
deleted file mode 100644
index 8bd9cbf904e95129149541afbc6f243ea702415b..0000000000000000000000000000000000000000
--- a/conversations/conv_004118.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.3660406908202742,
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-      "utterance_id": "2405-148581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-148581.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125879.flac |",
-      "real_speaker_id": "428",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "51",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125877.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/428/cough/0018.wav",
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\ No newline at end of file
diff --git a/conversations/conv_004122.json b/conversations/conv_004122.json
deleted file mode 100644
index 2c285ba4e099b9cfd9b92fe01438ce64f4e4d850..0000000000000000000000000000000000000000
--- a/conversations/conv_004122.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.36167939164592,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "32-21634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21634.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.043456554038182,
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-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 13.660891671885295,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21625.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.19018498181983,
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-      "utterance_id": "3790-140725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.483480244043683,
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-      "utterance_id": "6406-89940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-89940.flac |",
-      "real_speaker_id": "6406",
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-  "background_events": [
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-      "event_class": "Blender",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6406/laugh/0029.wav",
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\ No newline at end of file
diff --git a/conversations/conv_004125.json b/conversations/conv_004125.json
deleted file mode 100644
index 916156bf10e30976af036a6a72f086efed472da8..0000000000000000000000000000000000000000
--- a/conversations/conv_004125.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121739.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125750.flac |",
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-      "real_speaker_id": "4014",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125760.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_004129.json b/conversations/conv_004129.json
deleted file mode 100644
index e40873ae405ef5b2fbc94d8d4a3e028fb91906ba..0000000000000000000000000000000000000000
--- a/conversations/conv_004129.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1977-133046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.640857180077704,
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-      "utterance_id": "3285-121400",
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-      "real_speaker_id": "3285",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1025-92814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-92814.flac |",
-      "real_speaker_id": "1025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.96193501267956,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 81457
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-    {
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-      "duration_frames": 39713,
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-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_004133.json b/conversations/conv_004133.json
deleted file mode 100644
index bcad4293d3092f362ad40bb0f8a55a46225a2522..0000000000000000000000000000000000000000
--- a/conversations/conv_004133.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.641569857943896,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4592",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
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-      "position_frames": 105929
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 172716
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 0.9440353384941493,
-      "start_time": 17.70268145337166,
-      "speaker_id": "4592"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_004134.json b/conversations/conv_004134.json
deleted file mode 100644
index f6ab7870178e03e13f8c50a668ee71a24eabe487..0000000000000000000000000000000000000000
--- a/conversations/conv_004134.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.156705971245465,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2985-153200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2985-153200.flac |",
-      "real_speaker_id": "2985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.15194178687744,
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-      "utterance_id": "7802-104394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104394.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.004832192680308,
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-      "overlap": true,
-      "utterance_id": "2985-153202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2985-153202.flac |",
-      "real_speaker_id": "2985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.711710266934155,
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-      "utterance_id": "7802-104391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104391.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.144082812893227,
-      "end_time": 25.942463327828953,
-      "duration": 3.798380514935726,
-      "start_frame": 354305,
-      "duration_frames": 60774,
-      "overlap": false,
-      "utterance_id": "2985-153199",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2985-153199.flac |",
-      "real_speaker_id": "2985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.544264287597354,
-      "end_time": 31.156705971245465,
-      "duration": 4.612441683648113,
-      "start_frame": 424708,
-      "duration_frames": 73799,
-      "overlap": false,
-      "utterance_id": "7802-104391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104391.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 56503
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "start_time": 15.042493957917012
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2985/cough/0056.wav",
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-      "event_class": "laugh",
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-      "start_time": 23.197961467456768,
-      "speaker_id": "2985"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004144.json b/conversations/conv_004144.json
deleted file mode 100644
index f0fe79c80cae50e6e4a6c2f72e421b1327aa0b8d..0000000000000000000000000000000000000000
--- a/conversations/conv_004144.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.17420089910971,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "7276-284424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7001-12337.flac |",
-      "real_speaker_id": "7001",
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-      "utterance_id": "7276-92427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 91029
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.524012124590968,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7001-12337.flac |",
-      "real_speaker_id": "7001",
-      "position_frames": 61283
-    },
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-      "segment_id": "seg0005",
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-      "utterance_id": "7276-284424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 149260
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "6882-86794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-86794.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 18.66465651221502,
-      "speaker_id": "7276"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7001/cough/0148.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6882/laugh/0072.wav",
-      "duration": 0.6954714602731107,
-      "start_time": 29.422777609909296,
-      "speaker_id": "6882"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004148.json b/conversations/conv_004148.json
deleted file mode 100644
index 9a3172743a1219323765ab0ac96cf7272ca62863..0000000000000000000000000000000000000000
--- a/conversations/conv_004148.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "duration": 6.8199862476463196,
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-      "overlap": false,
-      "utterance_id": "1578-140045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-140045.flac |",
-      "real_speaker_id": "1578",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-233090.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "1578-6379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-6379.flac |",
-      "real_speaker_id": "1578",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.438938391043354,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-57347.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "1578",
-      "position_frames": 109119
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.202457814911696,
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-      "duration": 3.270889717438384,
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-      "duration_frames": 52334,
-      "overlap": false,
-      "utterance_id": "5951-57347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-57347.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 61401
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.97000885106909,
-      "end_time": 32.0,
-      "duration": 1.029991148930911,
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-      "utterance_id": "1578-140045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-140045.flac |",
-      "real_speaker_id": "1578",
-      "position_frames": 170370
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
-      "duration": 0.236984126984127,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1578/cough/0054.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1578/laugh/0082.wav",
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-      "start_time": 29.925154357835236,
-      "speaker_id": "1578"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004152.json b/conversations/conv_004152.json
deleted file mode 100644
index 6a0fe5a68a89c6178d4f31bf71c36492f29d2e53..0000000000000000000000000000000000000000
--- a/conversations/conv_004152.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "5157",
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-    {
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-      "utterance_id": "2374-160960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-160960.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47239.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 27.2867582870642,
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-      "duration": 4.713241712935801,
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-      "utterance_id": "5157-47237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47237.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-      "speaker_id": "5157"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004163.json b/conversations/conv_004163.json
deleted file mode 100644
index 637acde94c7a156aed9d4b4d8c1abf60038e6aa0..0000000000000000000000000000000000000000
--- a/conversations/conv_004163.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.695996489850403,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
-      "real_speaker_id": "5913",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 11.754816677552785,
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-      "overlap": true,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 53165
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.389773588011387,
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-      "duration": 6.032071667920576,
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-      "overlap": false,
-      "utterance_id": "5913-40745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
-      "real_speaker_id": "5913",
-      "position_frames": 50190
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.62404954667404,
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-      "utterance_id": "5913-40745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
-      "real_speaker_id": "5913",
-      "position_frames": 146703
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.23812846900647,
-      "end_time": 32.0,
-      "duration": 0.7618715309935311,
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-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
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-      "position_frames": 67385
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_2.wav",
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-      "speaker_id": "5913"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004164.json b/conversations/conv_004164.json
deleted file mode 100644
index cf46a322afb8fe097d211a0e66edf82082c9b333..0000000000000000000000000000000000000000
--- a/conversations/conv_004164.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "4931-28257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28257.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-169642.flac |",
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-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "359-128761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.950041824390045,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 60653
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.635294885056894,
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-      "utterance_id": "3245-169642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-169642.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 85679
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.416091521249484,
-      "end_time": 32.0,
-      "duration": 0.5839084787505158,
-      "start_frame": 502657,
-      "duration_frames": 9342,
-      "overlap": false,
-      "utterance_id": "359-128761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 148028
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "start_time": 11.609916013280712
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.6441713074219737,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4931/laugh/0061.wav",
-      "duration": 1.3810175512544764,
-      "start_time": 0,
-      "speaker_id": "4931"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/359/laugh/0102.wav",
-      "duration": 0.561772261278981,
-      "start_time": 31.423843697990435,
-      "speaker_id": "359"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/359/cough/0010.wav",
-      "duration": 0.8471340327577437,
-      "start_time": 30.425795223503204,
-      "speaker_id": "359"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004168.json b/conversations/conv_004168.json
deleted file mode 100644
index 594addd2bdca663fb9d328a3b68d24afc367527a..0000000000000000000000000000000000000000
--- a/conversations/conv_004168.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.698916882252045,
-      "duration": 3.698916882252045,
-      "start_frame": 0,
-      "duration_frames": 59182,
-      "overlap": false,
-      "utterance_id": "4427-20028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-20028.flac |",
-      "real_speaker_id": "4427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9440000939992093,
-      "end_time": 9.888470179028683,
-      "duration": 5.944470085029473,
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-      "duration_frames": 95111,
-      "overlap": false,
-      "utterance_id": "1265-135636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.495344455479753,
-      "end_time": 15.321892780020281,
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-      "duration_frames": 77224,
-      "overlap": false,
-      "utterance_id": "1265-135636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 95111
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.784192338321915,
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-      "duration": 3.638270076661918,
-      "start_frame": 252547,
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-      "overlap": false,
-      "utterance_id": "716-129583",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129583.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.080632618184865,
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-      "overlap": false,
-      "utterance_id": "716-129581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.882207648711027,
-      "end_time": 32.0,
-      "duration": 5.117792351288973,
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-      "duration_frames": 81884,
-      "overlap": false,
-      "utterance_id": "1265-135636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 172335
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_3.wav",
-      "duration": 4.299590580498322,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/laugh/0014.wav",
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-      "start_time": 5.605142643731411,
-      "speaker_id": "1265"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/laugh/0014.wav",
-      "duration": 1.16,
-      "start_time": 13.979936514365662,
-      "speaker_id": "1265"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/716/laugh/0082.wav",
-      "duration": 1.36,
-      "start_time": 19.607529454774625,
-      "speaker_id": "716"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/716/cough/0017.wav",
-      "duration": 1.2270135755394804,
-      "start_time": 23.909171352231734,
-      "speaker_id": "716"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004172.json b/conversations/conv_004172.json
deleted file mode 100644
index 3093c551f2c7cbb5e765f0fa727413050b3c3e16..0000000000000000000000000000000000000000
--- a/conversations/conv_004172.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 135783
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "start_time": 30.64,
-      "speaker_id": "412"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004175.json b/conversations/conv_004175.json
deleted file mode 100644
index 26f68d7a0c2dfacb35ebd23bcf4d1ac8b9166d8b..0000000000000000000000000000000000000000
--- a/conversations/conv_004175.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 30.997941058051165,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "6249-290631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-290631.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 0
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-      "real_speaker_id": "4967",
-      "position_frames": 0
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-      "real_speaker_id": "6249",
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\ No newline at end of file
diff --git a/conversations/conv_004187.json b/conversations/conv_004187.json
deleted file mode 100644
index 0ef90abeaa78b09ded400c96c505c278f687c180..0000000000000000000000000000000000000000
--- a/conversations/conv_004187.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_004191.json b/conversations/conv_004191.json
deleted file mode 100644
index 49e6e5995d7ca42e632df796191914f7b1ee16e3..0000000000000000000000000000000000000000
--- a/conversations/conv_004191.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4742-74181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
-      "duration": 0.9947845804988662,
-      "start_time": 23.298291357797527
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4098/laugh/0085.wav",
-      "duration": 1.08,
-      "start_time": 0,
-      "speaker_id": "4098"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4098/cough/0004.wav",
-      "duration": 1.1187503075113534,
-      "start_time": 15.327045071118182,
-      "speaker_id": "4098"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004200.json b/conversations/conv_004200.json
deleted file mode 100644
index ba2843f8b401ffdbdd04696d0038205c8bbafd67..0000000000000000000000000000000000000000
--- a/conversations/conv_004200.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.410079471534853,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.7826224869719525,
-      "duration": 5.7826224869719525,
-      "start_frame": 0,
-      "duration_frames": 92521,
-      "overlap": false,
-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.19772419159573,
-      "end_time": 10.810833009232521,
-      "duration": 4.613108817636792,
-      "start_frame": 99163,
-      "duration_frames": 73809,
-      "overlap": false,
-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 92521
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.240906068554972,
-      "end_time": 16.588794910691874,
-      "duration": 5.347888842136901,
-      "start_frame": 179854,
-      "duration_frames": 85566,
-      "overlap": false,
-      "utterance_id": "7997-111638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111638.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.01555519401562,
-      "end_time": 21.01314380787214,
-      "duration": 3.99758861385652,
-      "start_frame": 272248,
-      "duration_frames": 63961,
-      "overlap": false,
-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 166330
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.4735621865911,
-      "end_time": 26.869768604773565,
-      "duration": 5.396206418182466,
-      "start_frame": 343576,
-      "duration_frames": 86339,
-      "overlap": false,
-      "utterance_id": "7997-275179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-275179.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.56281089450831,
-      "end_time": 31.410079471534853,
-      "duration": 3.8472685770265422,
-      "start_frame": 441004,
-      "duration_frames": 61556,
-      "overlap": false,
-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 230291
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
-      "duration": 25.223493592236316,
-      "start_time": 5.743721145985431
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_0.wav",
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-      "start_time": 7.438369105377212
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2146/cough/0003.wav",
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-      "start_time": 5.95427491478809,
-      "speaker_id": "2146"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2146/laugh/0008.wav",
-      "duration": 1.38,
-      "start_time": 8.156504468938973,
-      "speaker_id": "2146"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7997/cough/0111.wav",
-      "duration": 1.32,
-      "start_time": 9.750635941126319,
-      "speaker_id": "7997"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2146/cough/0002.wav",
-      "duration": 1.1379734494837734,
-      "start_time": 15.742202172387604,
-      "speaker_id": "2146"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2146/cough/0007.wav",
-      "duration": 1.1121958460448067,
-      "start_time": 26.261191099245472,
-      "speaker_id": "2146"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004216.json b/conversations/conv_004216.json
deleted file mode 100644
index c7ab89d8dc1e694a0ff9f509200cf5ab0a81140e..0000000000000000000000000000000000000000
--- a/conversations/conv_004216.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.860939371269874,
-      "duration": 4.860939371269874,
-      "start_frame": 0,
-      "duration_frames": 77775,
-      "overlap": false,
-      "utterance_id": "4013-11734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-11734.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.019926733618103,
-      "end_time": 10.370833562347897,
-      "duration": 4.350906828729794,
-      "start_frame": 96318,
-      "duration_frames": 69614,
-      "overlap": false,
-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.320354913073839,
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-      "duration": 5.952420854052778,
-      "start_frame": 181125,
-      "duration_frames": 95238,
-      "overlap": false,
-      "utterance_id": "4013-11734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-11734.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 77775
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.214403302069563,
-      "end_time": 24.269011242632423,
-      "duration": 6.054607940562859,
-      "start_frame": 291430,
-      "duration_frames": 96873,
-      "overlap": false,
-      "utterance_id": "3185-163505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163505.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.479402240685015,
-      "end_time": 29.653500045133292,
-      "duration": 5.174097804448278,
-      "start_frame": 391670,
-      "duration_frames": 82785,
-      "overlap": true,
-      "utterance_id": "3185-163507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163507.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.317574434812883,
-      "end_time": 32.0,
-      "duration": 1.682425565187117,
-      "start_frame": 485081,
-      "duration_frames": 26918,
-      "overlap": false,
-      "utterance_id": "4013-182396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-182396.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 25.74705215419501,
-      "start_time": 4.707243393672588
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
-      "duration": 1.824151023335931,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3185/laugh/0015.wav",
-      "duration": 0.9979966460744811,
-      "start_time": 24.558745794908468,
-      "speaker_id": "3185"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004220.json b/conversations/conv_004220.json
deleted file mode 100644
index 19ce45c9cbc5c4c32d5cb7a4c1e393f72cb9f2a0..0000000000000000000000000000000000000000
--- a/conversations/conv_004220.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.478467084104939,
-      "duration": 3.478467084104939,
-      "start_frame": 0,
-      "duration_frames": 55655,
-      "overlap": false,
-      "utterance_id": "4813-248638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248638.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.6565254763286035,
-      "end_time": 8.396629990760346,
-      "duration": 3.740104514431742,
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-      "duration_frames": 59841,
-      "overlap": false,
-      "utterance_id": "1601-136848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136848.flac |",
-      "real_speaker_id": "1601",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.794300137127097,
-      "end_time": 15.459865606043422,
-      "duration": 6.665565468916324,
-      "start_frame": 140708,
-      "duration_frames": 106649,
-      "overlap": false,
-      "utterance_id": "7816-108621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108621.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.023179342756546,
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-      "duration": 4.443565042367731,
-      "start_frame": 256370,
-      "duration_frames": 71097,
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-      "utterance_id": "4813-248638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248638.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 55655
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.394646747593022,
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-      "duration": 3.8638118427896444,
-      "start_frame": 342314,
-      "duration_frames": 61820,
-      "overlap": false,
-      "utterance_id": "1601-136862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136862.flac |",
-      "real_speaker_id": "1601",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.541845687999594,
-      "end_time": 29.570229047378326,
-      "duration": 4.028383359378735,
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-      "duration_frames": 64454,
-      "overlap": false,
-      "utterance_id": "4813-248641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.112686761967915,
-      "end_time": 32.0,
-      "duration": 1.8873132380320854,
-      "start_frame": 481802,
-      "duration_frames": 30197,
-      "overlap": false,
-      "utterance_id": "1601-136848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136848.flac |",
-      "real_speaker_id": "1601",
-      "position_frames": 59841
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1601/cough/0022.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4813/cough/0072.wav",
-      "duration": 0.3737369753024537,
-      "start_time": 15.595388449667047,
-      "speaker_id": "4813"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1601/laugh/0009.wav",
-      "duration": 1.4,
-      "start_time": 25.351007596570174,
-      "speaker_id": "1601"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1601/cough/0025.wav",
-      "duration": 0.689431305582435,
-      "start_time": 21.70056462601793,
-      "speaker_id": "1601"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1601/laugh/0023.wav",
-      "duration": 0.5410746585444952,
-      "start_time": 29.56282899741249,
-      "speaker_id": "1601"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004221.json b/conversations/conv_004221.json
deleted file mode 100644
index 16c78d903600e2f89fdedf2fbeb67aa37db00f9b..0000000000000000000000000000000000000000
--- a/conversations/conv_004221.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.982149835220554,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.717346385702687,
-      "duration": 6.717346385702687,
-      "start_frame": 0,
-      "duration_frames": 107477,
-      "overlap": false,
-      "utterance_id": "2159-179157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179157.flac |",
-      "real_speaker_id": "2159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.965612321241014,
-      "end_time": 10.852130936779192,
-      "duration": 3.886518615538178,
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-      "duration_frames": 62184,
-      "overlap": false,
-      "utterance_id": "6494-60801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60801.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.274136386013188,
-      "end_time": 15.56694814277241,
-      "duration": 4.292811756759223,
-      "start_frame": 180386,
-      "duration_frames": 68684,
-      "overlap": false,
-      "utterance_id": "6494-60774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60774.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "240-160593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/240-160593.flac |",
-      "real_speaker_id": "240",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60774.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 68684
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "240-144999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/240-144999.flac |",
-      "real_speaker_id": "240",
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.401456647981693,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60801.flac |",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "6494"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004236.json b/conversations/conv_004236.json
deleted file mode 100644
index 4decbbdc2b9925472060f2a1c3e263ae9892e57a..0000000000000000000000000000000000000000
--- a/conversations/conv_004236.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.586852774231879,
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-      "utterance_id": "5703-47198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.852977549935323,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
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-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "8410-278220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8410-278220.flac |",
-      "real_speaker_id": "8410",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.659619743209014,
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-      "duration": 4.910541175645894,
-      "start_frame": 250553,
-      "duration_frames": 78568,
-      "overlap": false,
-      "utterance_id": "4771-6409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 107379
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.032356505189775,
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-      "utterance_id": "5703-47198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 57389
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.74383764509521,
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-      "duration": 4.256162354904792,
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-      "utterance_id": "4771-6409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 185947
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "8410"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004241.json b/conversations/conv_004241.json
deleted file mode 100644
index e76ff2bf424d5cbe8cac98ac38804e5df0e6d08e..0000000000000000000000000000000000000000
--- a/conversations/conv_004241.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "3046-148993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-148993.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-295710.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 109763
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 191225
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.732145996424734,
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-      "utterance_id": "3046-137739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-137739.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-    {
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-      "event_class": "laugh",
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-      "start_time": 17.977669274551,
-      "speaker_id": "8687"
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-    {
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-      "duration": 1.04,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3046/cough/0039.wav",
-      "duration": 0.9043972963889666,
-      "start_time": 28.71607871360415,
-      "speaker_id": "3046"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004257.json b/conversations/conv_004257.json
deleted file mode 100644
index 6a6f14bbc83367a20ac626d55610783d20c62e71..0000000000000000000000000000000000000000
--- a/conversations/conv_004257.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.36383036929888,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1250-135782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135782.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.960347012982899,
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-      "utterance_id": "5339-14134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.60578759781864,
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-      "duration_frames": 75893,
-      "overlap": false,
-      "utterance_id": "5339-14133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14133.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.031912869358177,
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-      "utterance_id": "1222-133834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.213454486150145,
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-      "duration": 3.7865455138498554,
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-      "duration_frames": 60584,
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-      "utterance_id": "5339-14133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14133.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 75893
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 0.92,
-      "start_time": 25.633891570212892,
-      "speaker_id": "1222"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004261.json b/conversations/conv_004261.json
deleted file mode 100644
index 08622d10cb701fed58cdbd567bb75a8038c1153e..0000000000000000000000000000000000000000
--- a/conversations/conv_004261.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.909995331990861,
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-      "start_frame": 0,
-      "duration_frames": 78559,
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-      "utterance_id": "6436-111963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-111963.flac |",
-      "real_speaker_id": "6436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292253.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-111963.flac |",
-      "real_speaker_id": "6436",
-      "position_frames": 78559
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8163-116797.flac |",
-      "real_speaker_id": "8163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.634339871629795,
-      "end_time": 32.0,
-      "duration": 2.3656601283702052,
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-      "overlap": false,
-      "utterance_id": "8825-292253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292253.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 74216
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 1.28,
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-      "start_time": 29.51332409781866,
-      "speaker_id": "8163"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_004276.json b/conversations/conv_004276.json
deleted file mode 100644
index 97d2ea3e9cccc36d083bb2d6ae73c86bd2d10353..0000000000000000000000000000000000000000
--- a/conversations/conv_004276.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.37800836683667,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "166-352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.794250408126418,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101859.flac |",
-      "real_speaker_id": "7597",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101859.flac |",
-      "real_speaker_id": "7597",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-126302.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.72590041399353,
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-      "utterance_id": "7597-101877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101877.flac |",
-      "real_speaker_id": "7597",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 0.6021578950386097
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/166/laugh/0002.wav",
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_004277.json b/conversations/conv_004277.json
deleted file mode 100644
index b14893cc4130e7df812ac4ecc2b8838b20d6967a..0000000000000000000000000000000000000000
--- a/conversations/conv_004277.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6497-234100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234100.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234100.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 52579
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234100.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 122360
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1265-135635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 24.96492023538721,
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-      "overlap": false,
-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 83849
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.85694553459374,
-      "end_time": 32.0,
-      "duration": 3.1430544654062587,
-      "start_frame": 461711,
-      "duration_frames": 50288,
-      "overlap": false,
-      "utterance_id": "1265-135635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 84769
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6497/laugh/0001.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/laugh/0097.wav",
-      "duration": 1.64,
-      "start_time": 30.129808155371965,
-      "speaker_id": "1265"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/cough/0014.wav",
-      "duration": 0.4688923467487337,
-      "start_time": 28.311716856338794,
-      "speaker_id": "1265"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004282.json b/conversations/conv_004282.json
deleted file mode 100644
index fcc8e99c00e8e7fe296ff60c68bab47935f62631..0000000000000000000000000000000000000000
--- a/conversations/conv_004282.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.219930729380222,
-      "duration": 6.219930729380222,
-      "start_frame": 0,
-      "duration_frames": 99518,
-      "overlap": false,
-      "utterance_id": "8169-118200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.35679102468953,
-      "end_time": 11.227538031334966,
-      "duration": 3.870747006645436,
-      "start_frame": 117708,
-      "duration_frames": 61931,
-      "overlap": false,
-      "utterance_id": "5772-43330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43330.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.774705687733125,
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-      "duration_frames": 95909,
-      "overlap": false,
-      "utterance_id": "5772-43315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43315.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.385947547782415,
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-      "duration": 3.047635564060993,
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-      "utterance_id": "8169-118202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118202.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6637-69607",
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-      "real_speaker_id": "6637",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 28.078330720088275,
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-      "duration": 3.9216692799117254,
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-      "duration_frames": 62746,
-      "overlap": false,
-      "utterance_id": "8169-118200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 99518
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "duration": 0.2931972789115646,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5772/laugh/0100.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6637/cough/0079.wav",
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-      "start_time": 21.6133721574404,
-      "speaker_id": "6637"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004294.json b/conversations/conv_004294.json
deleted file mode 100644
index 5a772d84ca8746625aa14e86843268735cf1606a..0000000000000000000000000000000000000000
--- a/conversations/conv_004294.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.2289541877746615,
-      "duration": 4.2289541877746615,
-      "start_frame": 0,
-      "duration_frames": 67663,
-      "overlap": false,
-      "utterance_id": "2230-148550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-148550.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.449892757825101,
-      "end_time": 8.149082639570494,
-      "duration": 3.6991898817453945,
-      "start_frame": 71198,
-      "duration_frames": 59187,
-      "overlap": false,
-      "utterance_id": "4415-16759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.597473269202547,
-      "end_time": 14.676891473483138,
-      "duration": 6.079418204280591,
-      "start_frame": 137559,
-      "duration_frames": 97270,
-      "overlap": false,
-      "utterance_id": "4415-16759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 59187
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.526840526403564,
-      "end_time": 19.560387075171423,
-      "duration": 4.033546548767858,
-      "start_frame": 248429,
-      "duration_frames": 64536,
-      "overlap": false,
-      "utterance_id": "94-3792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3792.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.156148373730918,
-      "end_time": 24.572426493966383,
-      "duration": 5.416278120235466,
-      "start_frame": 306498,
-      "duration_frames": 86660,
-      "overlap": true,
-      "utterance_id": "2230-148550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-148550.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 67663
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.70861173508591,
-      "end_time": 28.957134122263117,
-      "duration": 3.248522387177207,
-      "start_frame": 411337,
-      "duration_frames": 51976,
-      "overlap": false,
-      "utterance_id": "94-3795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3795.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.46699121027996,
-      "end_time": 32.0,
-      "duration": 2.5330087897200393,
-      "start_frame": 471471,
-      "duration_frames": 40528,
-      "overlap": false,
-      "utterance_id": "4415-16759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 156457
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
-      "duration": 0.6519047619047619,
-      "start_time": 17.648400017650015
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
-      "duration": 1.817664159416056,
-      "start_time": 2.080753616241611
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2230/laugh/0061.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "2230"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4415/laugh/0004.wav",
-      "duration": 1.2833812509257485,
-      "start_time": 3.022237731502257,
-      "speaker_id": "4415"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2230/cough/0068.wav",
-      "duration": 0.9031501125396806,
-      "start_time": 24.751301971439325,
-      "speaker_id": "2230"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/94/cough/0018.wav",
-      "duration": 0.6047019187564405,
-      "start_time": 24.922232570240556,
-      "speaker_id": "94"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004298.json b/conversations/conv_004298.json
deleted file mode 100644
index a5213b5882ea1d9ca4776636a8d332a89cb03f62..0000000000000000000000000000000000000000
--- a/conversations/conv_004298.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.722120277935259,
-      "duration": 5.722120277935259,
-      "start_frame": 0,
-      "duration_frames": 91553,
-      "overlap": false,
-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.518657137318202,
-      "end_time": 12.144706840106437,
-      "duration": 5.626049702788236,
-      "start_frame": 104298,
-      "duration_frames": 90016,
-      "overlap": false,
-      "utterance_id": "8725-294554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294554.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.75969124773095,
-      "end_time": 18.53969889808161,
-      "duration": 5.780007650350662,
-      "start_frame": 204155,
-      "duration_frames": 92480,
-      "overlap": false,
-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.073142415890523,
-      "end_time": 22.504026355805046,
-      "duration": 3.4308839399145232,
-      "start_frame": 305170,
-      "duration_frames": 54894,
-      "overlap": false,
-      "utterance_id": "8725-294554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294554.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 90016
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.60888554847071,
-      "end_time": 27.057622742853038,
-      "duration": 3.4487371943823275,
-      "start_frame": 377742,
-      "duration_frames": 55179,
-      "overlap": false,
-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 91553
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.235228894940192,
-      "end_time": 32.0,
-      "duration": 4.764771105059808,
-      "start_frame": 435763,
-      "duration_frames": 76236,
-      "overlap": false,
-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 92480
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
-      "duration": 1.4526754402361557,
-      "start_time": 14.680608342836777
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4406/laugh/0103.wav",
-      "duration": 0.96,
-      "start_time": 16.20104405125509,
-      "speaker_id": "4406"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004299.json b/conversations/conv_004299.json
deleted file mode 100644
index d22e6444e7ab81fcb6d3474fe4e4c9722d9b0d08..0000000000000000000000000000000000000000
--- a/conversations/conv_004299.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.347602902587298,
-      "duration": 3.347602902587298,
-      "start_frame": 0,
-      "duration_frames": 53561,
-      "overlap": false,
-      "utterance_id": "5198-204974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204974.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.7539525584842934,
-      "end_time": 8.461815652840059,
-      "duration": 4.7078630943557656,
-      "start_frame": 60063,
-      "duration_frames": 75325,
-      "overlap": false,
-      "utterance_id": "6701-71401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71401.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.099307892809327,
-      "end_time": 14.18130919145045,
-      "duration": 5.082001298641124,
-      "start_frame": 145588,
-      "duration_frames": 81312,
-      "overlap": false,
-      "utterance_id": "6701-71402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71402.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.444438941035804,
-      "end_time": 21.225869821491354,
-      "duration": 6.78143088045555,
-      "start_frame": 231111,
-      "duration_frames": 108502,
-      "overlap": false,
-      "utterance_id": "2167-149880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149880.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.718287378523733,
-      "end_time": 27.804454466824826,
-      "duration": 6.086167088301092,
-      "start_frame": 347492,
-      "duration_frames": 97378,
-      "overlap": false,
-      "utterance_id": "2167-149881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149881.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.67983560247606,
-      "end_time": 32.0,
-      "duration": 3.320164397523939,
-      "start_frame": 458877,
-      "duration_frames": 53122,
-      "overlap": false,
-      "utterance_id": "5198-204975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204975.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
-      "duration": 2.5680725623582767,
-      "start_time": 29.159575403758225
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-    {
-      "event_class": "Blender",
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-      "duration": 2.8904347120626888,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6701/laugh/0084.wav",
-      "duration": 0.6872427266264847,
-      "start_time": 4.024751630506374,
-      "speaker_id": "6701"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004304.json b/conversations/conv_004304.json
deleted file mode 100644
index 93ccf33ae5e2b8a812c4cef76fb92835b54e5262..0000000000000000000000000000000000000000
--- a/conversations/conv_004304.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.923785179117395,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.825037987058881,
-      "duration": 6.825037987058881,
-      "start_frame": 0,
-      "duration_frames": 109200,
-      "overlap": false,
-      "utterance_id": "1337-156963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-156963.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.838167574392318,
-      "end_time": 13.638099659644539,
-      "duration": 5.79993208525222,
-      "start_frame": 125410,
-      "duration_frames": 92798,
-      "overlap": false,
-      "utterance_id": "487-129440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.320939109956171,
-      "end_time": 19.1181681239157,
-      "duration": 4.79722901395953,
-      "start_frame": 229135,
-      "duration_frames": 76755,
-      "overlap": false,
-      "utterance_id": "1337-156963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-156963.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 109200
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.7800457148837,
-      "end_time": 24.81923026670664,
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-      "start_frame": 300480,
-      "duration_frames": 96626,
-      "overlap": true,
-      "utterance_id": "487-129440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 92798
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.604302254197478,
-      "end_time": 31.923785179117395,
-      "duration": 6.319482924919918,
-      "start_frame": 409668,
-      "duration_frames": 101111,
-      "overlap": false,
-      "utterance_id": "1337-10673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-10673.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 10.00231536414297,
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
-      "duration": 0.6760544217687074,
-      "start_time": 13.110555625932655
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/487/laugh/0057.wav",
-      "duration": 1.16,
-      "start_time": 13.849819119075125,
-      "speaker_id": "487"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1337/laugh/0044.wav",
-      "duration": 1.36,
-      "start_time": 16.63897187557695,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1337/laugh/0027.wav",
-      "duration": 0.6895681150243476,
-      "start_time": 28.056978216788657,
-      "speaker_id": "1337"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004308.json b/conversations/conv_004308.json
deleted file mode 100644
index dce744db34c08481851ed4b6e599e0d676bbc737..0000000000000000000000000000000000000000
--- a/conversations/conv_004308.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.53709643762242,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.356009700263117,
-      "duration": 5.356009700263117,
-      "start_frame": 0,
-      "duration_frames": 85696,
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-      "utterance_id": "7555-101283",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51744.flac |",
-      "real_speaker_id": "5700",
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-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004312.json b/conversations/conv_004312.json
deleted file mode 100644
index 10c14beac4bdd3a67b99695294e4e21d0c057ab9..0000000000000000000000000000000000000000
--- a/conversations/conv_004312.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279367.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.3031579950427155,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
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-      "segment_id": "seg0004",
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-      "utterance_id": "6233-36633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-36633.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.393551251187816,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 87172
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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\ No newline at end of file
diff --git a/conversations/conv_004319.json b/conversations/conv_004319.json
deleted file mode 100644
index c485f2fc1081955d3af05c5dfa864e54dbdafe29..0000000000000000000000000000000000000000
--- a/conversations/conv_004319.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5660-101892.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5660-101892.flac |",
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-      "position_frames": 69579
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5660-101854",
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-      "real_speaker_id": "5660",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_004324.json b/conversations/conv_004324.json
deleted file mode 100644
index c6703c6a20ffe5b24e8a25956dac34a667fdaeb7..0000000000000000000000000000000000000000
--- a/conversations/conv_004324.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "1898-145720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145720.flac |",
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-    {
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-      "utterance_id": "8328-280925",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8328/cough/0009.wav",
-      "duration": 0.7564142260728731,
-      "start_time": 12.941393499168866,
-      "speaker_id": "8328"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8328/cough/0012.wav",
-      "duration": 1.1843221999625444,
-      "start_time": 30.81238419596496,
-      "speaker_id": "8328"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004328.json b/conversations/conv_004328.json
deleted file mode 100644
index 98b70eaa49a6579c4868b31eacb78f8736a6cfb7..0000000000000000000000000000000000000000
--- a/conversations/conv_004328.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.169220419938261,
-      "duration": 4.169220419938261,
-      "start_frame": 0,
-      "duration_frames": 66707,
-      "overlap": false,
-      "utterance_id": "3486-166446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.008659646057885,
-      "end_time": 10.650873299755132,
-      "duration": 6.6422136536972465,
-      "start_frame": 64138,
-      "duration_frames": 106275,
-      "overlap": true,
-      "utterance_id": "6895-92805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92805.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.734225121306068,
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-      "duration_frames": 50990,
-      "overlap": true,
-      "utterance_id": "3486-166424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.724692567037156,
-      "end_time": 19.42474175131767,
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-      "utterance_id": "3486-166424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 50990
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.10080862376239,
-      "end_time": 24.23562052034878,
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-      "duration_frames": 66156,
-      "overlap": false,
-      "utterance_id": "6311-63718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6311-63718.flac |",
-      "real_speaker_id": "6311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.312024731310245,
-      "end_time": 30.047077496649592,
-      "duration": 4.735052765339345,
-      "start_frame": 404992,
-      "duration_frames": 75760,
-      "overlap": false,
-      "utterance_id": "3486-166446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 66707
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.87262207306927,
-      "end_time": 32.0,
-      "duration": 1.1273779269307305,
-      "start_frame": 493961,
-      "duration_frames": 18038,
-      "overlap": false,
-      "utterance_id": "6895-92806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92806.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
-      "duration": 14.907210884353741,
-      "start_time": 10.429697804808496
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
-      "duration": 0.27267573696145125,
-      "start_time": 20.23389497953815
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3486/laugh/0115.wav",
-      "duration": 1.48,
-      "start_time": 0,
-      "speaker_id": "3486"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6311/laugh/0018.wav",
-      "duration": 1.06,
-      "start_time": 24.29252394514023,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3486/cough/0096.wav",
-      "duration": 0.8711116279820139,
-      "start_time": 26.91569692783005,
-      "speaker_id": "3486"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004332.json b/conversations/conv_004332.json
deleted file mode 100644
index 71c982bb42dcd6d377326d833c0fc3a0d239aa0c..0000000000000000000000000000000000000000
--- a/conversations/conv_004332.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.14793702666665,
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-      "start_frame": 0,
-      "duration_frames": 82366,
-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.269559421095655,
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-      "utterance_id": "70-121130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121130.flac |",
-      "real_speaker_id": "70",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.532803620948247,
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-      "duration": 5.226034181949895,
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-      "duration_frames": 83616,
-      "overlap": false,
-      "utterance_id": "5725-50452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-50452.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.16998769816813,
-      "end_time": 22.285417819123808,
-      "duration": 6.115430120955677,
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-      "duration_frames": 97846,
-      "overlap": false,
-      "utterance_id": "70-121130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121130.flac |",
-      "real_speaker_id": "70",
-      "position_frames": 69867
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.252836594265965,
-      "end_time": 28.804047834092565,
-      "duration": 5.551211239826601,
-      "start_frame": 372045,
-      "duration_frames": 88819,
-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 82366
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.903255261861815,
-      "end_time": 32.0,
-      "duration": 2.0967447381381845,
-      "start_frame": 478452,
-      "duration_frames": 33547,
-      "overlap": false,
-      "utterance_id": "5725-44938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-44938.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.5130352766626904,
-      "start_time": 6.975551410515523
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1704/laugh/0033.wav",
-      "duration": 1.58,
-      "start_time": 0,
-      "speaker_id": "1704"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1704/cough/0093.wav",
-      "duration": 0.321572353871948,
-      "start_time": 5.3162708789641355,
-      "speaker_id": "1704"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/70/laugh/0043.wav",
-      "duration": 0.5958726724549201,
-      "start_time": 9.644663096654723,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5725/laugh/0034.wav",
-      "duration": 0.5022283953345632,
-      "start_time": 31.497771604665438,
-      "speaker_id": "5725"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004333.json b/conversations/conv_004333.json
deleted file mode 100644
index d2cdf699554e31ac6d567d3c82bfc726fabe126e..0000000000000000000000000000000000000000
--- a/conversations/conv_004333.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.042792383617612,
-      "duration": 3.042792383617612,
-      "start_frame": 0,
-      "duration_frames": 48684,
-      "overlap": false,
-      "utterance_id": "4748-28399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-28399.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 2.281831648163732,
-      "end_time": 7.995090259458852,
-      "duration": 5.71325861129512,
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-      "overlap": true,
-      "utterance_id": "8644-262282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262282.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.44523340826321,
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-      "utterance_id": "4748-25901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-25901.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.425254112272068,
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-      "duration": 6.108134963178618,
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-      "overlap": false,
-      "utterance_id": "8644-262282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262282.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 91412
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.860364540870616,
-      "end_time": 25.307087853707785,
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-      "duration_frames": 55147,
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-      "utterance_id": "8644-262284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262284.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.45920035580366,
-      "end_time": 32.0,
-      "duration": 5.5407996441963405,
-      "start_frame": 423347,
-      "duration_frames": 88652,
-      "overlap": false,
-      "utterance_id": "1970-10594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-10594.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  ],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8644/laugh/0062.wav",
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-      "start_time": 13.927240249611945,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1970/laugh/0043.wav",
-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "1970"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1970/cough/0032.wav",
-      "duration": 0.7676033031507381,
-      "start_time": 26.507377894075667,
-      "speaker_id": "1970"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004345.json b/conversations/conv_004345.json
deleted file mode 100644
index a7a20da9098b15e9a33e503b2c6dc1e65b1b0a7a..0000000000000000000000000000000000000000
--- a/conversations/conv_004345.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.848306726531817,
-      "duration": 4.848306726531817,
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-      "overlap": false,
-      "utterance_id": "6159-50456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6159-50456.flac |",
-      "real_speaker_id": "6159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.270879292683787,
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-      "duration": 6.170803155953237,
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-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.813878666561614,
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-      "duration": 6.691711420604534,
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-      "overlap": false,
-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 107067
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-      "segment_id": "seg0005",
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-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-      "duration": 1.2311034953772904,
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-      "speaker_id": "2696"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2061/cough/0104.wav",
-      "duration": 0.6115253427741896,
-      "start_time": 24.552179076972166,
-      "speaker_id": "2061"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2696/laugh/0056.wav",
-      "duration": 1.18,
-      "start_time": 30.82,
-      "speaker_id": "2696"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004349.json b/conversations/conv_004349.json
deleted file mode 100644
index be24aabb073ced102fd1c57992d1f58a6174e36a..0000000000000000000000000000000000000000
--- a/conversations/conv_004349.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8031583424854394,
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-      "overlap": false,
-      "utterance_id": "806-123715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.5868528209253006,
-      "end_time": 10.972783465855997,
-      "duration": 6.385930644930697,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69655.flac |",
-      "real_speaker_id": "6484",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.928674945181946,
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-      "duration_frames": 73703,
-      "overlap": false,
-      "utterance_id": "806-123715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 60850
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.459606874002176,
-      "end_time": 23.366157095739624,
-      "duration": 5.906550221737448,
-      "start_frame": 279353,
-      "duration_frames": 94504,
-      "overlap": false,
-      "utterance_id": "6484-69655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69655.flac |",
-      "real_speaker_id": "6484",
-      "position_frames": 102174
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.75085722526402,
-      "end_time": 27.708056709657935,
-      "duration": 3.9571994843939144,
-      "start_frame": 380013,
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-      "overlap": false,
-      "utterance_id": "806-123715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 134553
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.128108300639127,
-      "end_time": 32.0,
-      "duration": 3.871891699360873,
-      "start_frame": 450049,
-      "duration_frames": 61950,
-      "overlap": false,
-      "utterance_id": "6484-69655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69655.flac |",
-      "real_speaker_id": "6484",
-      "position_frames": 196678
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
-      "duration": 3.7829478458049888,
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6484/laugh/0033.wav",
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-      "start_time": 21.7592348508836,
-      "speaker_id": "6484"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004353.json b/conversations/conv_004353.json
deleted file mode 100644
index 40de2588852054ea422821318253daebc5bf9a18..0000000000000000000000000000000000000000
--- a/conversations/conv_004353.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.906805470729759,
-      "duration": 5.906805470729759,
-      "start_frame": 0,
-      "duration_frames": 94508,
-      "overlap": false,
-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "duration": 3.256683610264315,
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-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 94508
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "4583-16043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4583-16043.flac |",
-      "real_speaker_id": "4583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.903717173393261,
-      "end_time": 20.85060427646055,
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-      "duration_frames": 79150,
-      "overlap": false,
-      "utterance_id": "8190-284435",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284435.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.668059027168912,
-      "end_time": 27.3960704208021,
-      "duration": 5.72801139363319,
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-      "duration_frames": 91648,
-      "overlap": false,
-      "utterance_id": "4583-16044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4583-16044.flac |",
-      "real_speaker_id": "4583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.01613687080159,
-      "end_time": 32.0,
-      "duration": 3.9838631291984115,
-      "start_frame": 448258,
-      "duration_frames": 63741,
-      "overlap": false,
-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 146614
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 15.422143787098937
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4583/laugh/0115.wav",
-      "duration": 1.4,
-      "start_time": 24.16315585809356,
-      "speaker_id": "4583"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5217/laugh/0008.wav",
-      "duration": 1.08,
-      "start_time": 29.936261685316797,
-      "speaker_id": "5217"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5217/cough/0022.wav",
-      "duration": 0.6355903008130765,
-      "start_time": 27.326226882471254,
-      "speaker_id": "5217"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004358.json b/conversations/conv_004358.json
deleted file mode 100644
index 2320398afcecfef67d3a53ee8dcdc0984225f9e8..0000000000000000000000000000000000000000
--- a/conversations/conv_004358.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.878634897136606,
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-      "start_frame": 0,
-      "duration_frames": 94058,
-      "overlap": false,
-      "utterance_id": "7314-93277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-93277.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.981484165325795,
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-      "duration": 4.459423032131688,
-      "start_frame": 111703,
-      "duration_frames": 71350,
-      "overlap": false,
-      "utterance_id": "5682-32876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32876.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.685502496162863,
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-      "duration_frames": 72322,
-      "overlap": false,
-      "utterance_id": "1081-125237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-125237.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.97933276973071,
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-      "duration": 4.663770476294517,
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-      "duration_frames": 74620,
-      "overlap": false,
-      "utterance_id": "7314-77782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-77782.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.792596067601306,
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-      "duration_frames": 81610,
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-      "utterance_id": "1081-128618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 27.715760944201982,
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-      "overlap": false,
-      "utterance_id": "1081-125237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-125237.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 72322
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.207718333251556,
-      "end_time": 32.0,
-      "duration": 0.792281666748444,
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-      "duration_frames": 12676,
-      "overlap": false,
-      "utterance_id": "7314-77782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-77782.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 74620
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_5.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1081/cough/0066.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1081/laugh/0110.wav",
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-      "start_time": 24.6901347222406,
-      "speaker_id": "1081"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1081/cough/0100.wav",
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-      "start_time": 26.972169835290178,
-      "speaker_id": "1081"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1081/laugh/0129.wav",
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-      "speaker_id": "1081"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7314/laugh/0006.wav",
-      "duration": 1.64,
-      "start_time": 29.44818272982546,
-      "speaker_id": "7314"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004364.json b/conversations/conv_004364.json
deleted file mode 100644
index 5243cbd711686f2a201df011d872457b46285060..0000000000000000000000000000000000000000
--- a/conversations/conv_004364.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.038274866065793,
-      "duration": 6.038274866065793,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7756-84187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-84187.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141715.flac |",
-      "real_speaker_id": "1572",
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-    {
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-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.684567769687096,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
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-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141715.flac |",
-      "real_speaker_id": "1572",
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-      "event_class": "laugh",
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-      "start_time": 9.873970104932258,
-      "speaker_id": "49"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004365.json b/conversations/conv_004365.json
deleted file mode 100644
index 04f62bdc2b2ee0b4dbecc814a2e906a46b4f94fa..0000000000000000000000000000000000000000
--- a/conversations/conv_004365.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.523197857836607,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8576-285176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-285176.flac |",
-      "real_speaker_id": "8576",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.858741351615887,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-285176.flac |",
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-      "position_frames": 88120
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-      "utterance_id": "1081-128618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 18.63774843876542,
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-      "overlap": false,
-      "utterance_id": "8576-300229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-300229.flac |",
-      "real_speaker_id": "8576",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.979216345518928,
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-      "start_frame": 399667,
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-      "overlap": false,
-      "utterance_id": "1081-128618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 102080
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.941138609651965,
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-      "duration": 0.5820592481846418,
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-      "duration_frames": 9312,
-      "overlap": true,
-      "utterance_id": "8576-300229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-300229.flac |",
-      "real_speaker_id": "8576",
-      "position_frames": 81463
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "8576"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004369.json b/conversations/conv_004369.json
deleted file mode 100644
index 1ae047c88744695e68877dc1a119826a7e6824be..0000000000000000000000000000000000000000
--- a/conversations/conv_004369.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.5881843092463,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99124.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234067.flac |",
-      "real_speaker_id": "6497",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7498-99122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99122.flac |",
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-      "position_frames": 0
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-    {
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-      "start_time": 14.701895127347981,
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-      "utterance_id": "6497-234106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234106.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.414651991276344,
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-      "overlap": false,
-      "utterance_id": "956-127932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.24327145866457,
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-      "duration": 4.344912850581732,
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-      "duration_frames": 69518,
-      "overlap": true,
-      "utterance_id": "7498-99122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99122.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 58316
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "cough",
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-      "duration": 1.44,
-      "start_time": 26.66886495491883,
-      "speaker_id": "7498"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004373.json b/conversations/conv_004373.json
deleted file mode 100644
index 2afeb68aae2829f558cb52ec0f9b46f9b8d34a3c..0000000000000000000000000000000000000000
--- a/conversations/conv_004373.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "228-133094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-133094.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-83701.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.770549333862096,
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-      "utterance_id": "228-121761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-121761.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.904970328809277,
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-      "utterance_id": "7046-85651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-85651.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "228-121761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-121761.flac |",
-      "real_speaker_id": "228",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7046-80695",
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-      "real_speaker_id": "7046",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.35841070721481,
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-      "utterance_id": "1633-141584",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-141584.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "start_time": 15.56040186585847,
-      "speaker_id": "7046"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/228/cough/0117.wav",
-      "duration": 0.37780493117813735,
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-      "speaker_id": "228"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7046/laugh/0042.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7046/cough/0104.wav",
-      "duration": 1.04,
-      "start_time": 25.31788645022738,
-      "speaker_id": "7046"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004386.json b/conversations/conv_004386.json
deleted file mode 100644
index 0f276a9c44cd26372f5fd5d2398bcc68fabfa46a..0000000000000000000000000000000000000000
--- a/conversations/conv_004386.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.57763499415067,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3112-9554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9554.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.6215527207370743,
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-      "utterance_id": "5561-41616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-41616.flac |",
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-      "real_speaker_id": "3112",
-      "position_frames": 0
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-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.964421494544112,
-      "end_time": 31.57763499415067,
-      "duration": 6.613213499606559,
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-      "duration_frames": 105811,
-      "overlap": true,
-      "utterance_id": "3112-9555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9555.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 71243
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "start_time": 12.156785110361813
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
-      "duration": 2.417170695079403,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5561/cough/0076.wav",
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-      "speaker_id": "5561"
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3112/cough/0062.wav",
-      "duration": 0.31705735097315635,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3112/cough/0074.wav",
-      "duration": 0.39859482553911785,
-      "start_time": 24.366185825118336,
-      "speaker_id": "3112"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004387.json b/conversations/conv_004387.json
deleted file mode 100644
index e599e271471c60498db2c1484d2cd384ea1144a7..0000000000000000000000000000000000000000
--- a/conversations/conv_004387.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.791713969940357,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.531718874224162,
-      "duration": 4.531718874224162,
-      "start_frame": 0,
-      "duration_frames": 72507,
-      "overlap": false,
-      "utterance_id": "3630-11612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-11612.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.740810284135107,
-      "end_time": 9.481768290406272,
-      "duration": 4.740958006271166,
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-      "duration_frames": 75855,
-      "overlap": false,
-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.52759255759194,
-      "end_time": 15.522739889687422,
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-      "overlap": true,
-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 75855
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8225-274376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274376.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.85085565051256,
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-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 171777
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.642970297667883,
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-      "start_frame": 410287,
-      "duration_frames": 82379,
-      "overlap": true,
-      "utterance_id": "3630-11612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-11612.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 72507
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-      "speaker_id": "3630"
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-      "duration": 1.08,
-      "start_time": 0.8926586983666716,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7475/laugh/0008.wav",
-      "duration": 1.212640088235573,
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-      "speaker_id": "7475"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004390.json b/conversations/conv_004390.json
deleted file mode 100644
index 46371e0e8262f09596ab49018bf7b6da0b4e9117..0000000000000000000000000000000000000000
--- a/conversations/conv_004390.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2002-139469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
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-      "position_frames": 0
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-      "utterance_id": "2002-139469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
-      "position_frames": 98528
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "5012-31097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31097.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2002-139469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
-      "position_frames": 188787
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.315437485707537,
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-      "duration": 3.6845625142924625,
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-      "duration_frames": 58953,
-      "overlap": false,
-      "utterance_id": "5012-31089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31089.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2002/laugh/0107.wav",
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-      "start_time": 6.389579672554408,
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-    {
-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 4.295124352776944,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5012/laugh/0020.wav",
-      "duration": 0.6655983886654551,
-      "start_time": 5.615689437955693,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2002/laugh/0038.wav",
-      "duration": 0.9157718871992193,
-      "start_time": 15.757553790450494,
-      "speaker_id": "2002"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004406.json b/conversations/conv_004406.json
deleted file mode 100644
index 3cd4c7177306158d8ecb880a76e28c10283774d3..0000000000000000000000000000000000000000
--- a/conversations/conv_004406.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.915258972074783,
-      "duration": 3.915258972074783,
-      "start_frame": 0,
-      "duration_frames": 62644,
-      "overlap": false,
-      "utterance_id": "3564-132498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3564-132498.flac |",
-      "real_speaker_id": "3564",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "3922-723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-723.flac |",
-      "real_speaker_id": "3922",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3564-132498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3564-132498.flac |",
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-      "position_frames": 62644
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3922-715",
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "real_speaker_id": "3922",
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-    {
-      "segment_id": "seg0006",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_6.wav",
-      "duration": 1.2077777777777778,
-      "start_time": 24.15411456070548
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3922/laugh/0018.wav",
-      "duration": 1.0,
-      "start_time": 20.48596178156112,
-      "speaker_id": "3922"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3564/cough/0087.wav",
-      "duration": 0.7335000951742139,
-      "start_time": 21.934149589665733,
-      "speaker_id": "3564"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3922/laugh/0005.wav",
-      "duration": 1.6599276972610144,
-      "start_time": 22.549195539235992,
-      "speaker_id": "3922"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004410.json b/conversations/conv_004410.json
deleted file mode 100644
index cd6291fa2cd61b4f61914b28ae63f72cfc345c0d..0000000000000000000000000000000000000000
--- a/conversations/conv_004410.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.394849230762171,
-      "duration": 5.394849230762171,
-      "start_frame": 0,
-      "duration_frames": 86317,
-      "overlap": false,
-      "utterance_id": "5062-294697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294697.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.778853691193601,
-      "end_time": 10.678915714505376,
-      "duration": 4.900062023311774,
-      "start_frame": 92461,
-      "duration_frames": 78400,
-      "overlap": false,
-      "utterance_id": "4402-3068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3068.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.886253115431668,
-      "end_time": 15.241836552776302,
-      "duration": 4.355583437344634,
-      "start_frame": 174180,
-      "duration_frames": 69689,
-      "overlap": false,
-      "utterance_id": "5062-294697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294697.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 86317
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.634942496308033,
-      "end_time": 20.23260314657184,
-      "duration": 4.597660650263806,
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-      "duration_frames": 73562,
-      "overlap": true,
-      "utterance_id": "4402-3067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3067.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.24930385491097,
-      "end_time": 26.02200853424427,
-      "duration": 4.7727046793333034,
-      "start_frame": 339988,
-      "duration_frames": 76363,
-      "overlap": true,
-      "utterance_id": "7220-77907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77907.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.84168116681819,
-      "end_time": 31.246750579360302,
-      "duration": 4.405069412542112,
-      "start_frame": 429466,
-      "duration_frames": 70481,
-      "overlap": false,
-      "utterance_id": "7220-77907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77907.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 76363
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.452946527976682,
-      "end_time": 32.0,
-      "duration": 0.5470534720233182,
-      "start_frame": 503247,
-      "duration_frames": 8752,
-      "overlap": false,
-      "utterance_id": "4402-3066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3066.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
-      "start_time": 12.249596396407641
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
-      "duration": 3.4510007553728714,
-      "start_time": 22.7933502862053
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
-      "duration": 2.5751018182084957,
-      "start_time": 22.15965245427934
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5062/cough/0106.wav",
-      "duration": 0.3410557909215662,
-      "start_time": 0,
-      "speaker_id": "5062"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4402/laugh/0026.wav",
-      "duration": 1.36,
-      "start_time": 20.34399132045756,
-      "speaker_id": "4402"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7220/cough/0081.wav",
-      "duration": 0.76,
-      "start_time": 26.089962629479942,
-      "speaker_id": "7220"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004421.json b/conversations/conv_004421.json
deleted file mode 100644
index 4aac2b41945ae8d4f9c9207af07ce7a513febc49..0000000000000000000000000000000000000000
--- a/conversations/conv_004421.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.84638615903384,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.128841355555349,
-      "end_time": 10.455804762367798,
-      "duration": 6.326963406812449,
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-      "overlap": true,
-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.37770571099286,
-      "end_time": 16.434597419589267,
-      "duration": 5.056891708596408,
-      "start_frame": 182043,
-      "duration_frames": 80910,
-      "overlap": false,
-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 61542
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.823738736613272,
-      "end_time": 20.070299411478672,
-      "duration": 3.246560674865399,
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-      "duration_frames": 51944,
-      "overlap": false,
-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 101231
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.872372809182256,
-      "end_time": 25.06882446841321,
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-      "overlap": true,
-      "utterance_id": "6726-56640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.323190005485937,
-      "end_time": 29.675389104000462,
-      "duration": 3.3521990985145256,
-      "start_frame": 421171,
-      "duration_frames": 53635,
-      "overlap": false,
-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.489133214137624,
-      "end_time": 32.0,
-      "duration": 1.510866785862376,
-      "start_frame": 487826,
-      "duration_frames": 24173,
-      "overlap": false,
-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 153175
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
-      "duration": 25.035765361585664,
-      "start_time": 4.5410315819053855
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
-      "duration": 0.2440362811791383,
-      "start_time": 13.967476039419845
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 2.247641723356009,
-      "start_time": 13.891190169965713
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7107/laugh/0079.wav",
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-      "start_time": 9.713301023870049,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2638/laugh/0065.wav",
-      "duration": 0.5200819254691944,
-      "start_time": 17.809929460353654,
-      "speaker_id": "2638"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6726/cough/0095.wav",
-      "duration": 0.33215125648318466,
-      "start_time": 25.141205156238602,
-      "speaker_id": "6726"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6726/laugh/0122.wav",
-      "duration": 1.24,
-      "start_time": 29.894053671490976,
-      "speaker_id": "6726"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6726/cough/0087.wav",
-      "duration": 0.5247006571551803,
-      "start_time": 25.74385902035533,
-      "speaker_id": "6726"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004426.json b/conversations/conv_004426.json
deleted file mode 100644
index 09a3212739f32afd16e2d6a8ea971b8b023beef7..0000000000000000000000000000000000000000
--- a/conversations/conv_004426.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.347928801255094,
-      "duration": 4.347928801255094,
-      "start_frame": 0,
-      "duration_frames": 69566,
-      "overlap": false,
-      "utterance_id": "3983-5371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5371.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.860306411521846,
-      "end_time": 9.291480409419208,
-      "duration": 4.431173997897361,
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-      "duration_frames": 70898,
-      "overlap": false,
-      "utterance_id": "7299-88365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7299-88365.flac |",
-      "real_speaker_id": "7299",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.693401064566128,
-      "end_time": 13.528654701958153,
-      "duration": 3.8352536373920243,
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-      "duration_frames": 61364,
-      "overlap": false,
-      "utterance_id": "6950-86823",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86823.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.96572692223698,
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-      "overlap": false,
-      "utterance_id": "7299-88365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7299-88365.flac |",
-      "real_speaker_id": "7299",
-      "position_frames": 70898
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.798952295328185,
-      "end_time": 25.67636755974646,
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-      "duration_frames": 62038,
-      "overlap": false,
-      "utterance_id": "3983-5371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5371.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 69566
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.89106495878207,
-      "end_time": 30.183515402481905,
-      "duration": 4.292450443699835,
-      "start_frame": 414257,
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-      "overlap": false,
-      "utterance_id": "3983-5371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5371.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 131604
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.756030770182186,
-      "end_time": 32.0,
-      "duration": 1.2439692298178144,
-      "start_frame": 492096,
-      "duration_frames": 19903,
-      "overlap": false,
-      "utterance_id": "7299-88365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7299-88365.flac |",
-      "real_speaker_id": "7299",
-      "position_frames": 176145
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.882980512009386,
-      "start_time": 21.186268388255204
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7299/laugh/0082.wav",
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-      "start_time": 12.592585696224667,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7299/laugh/0080.wav",
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-      "start_time": 29.719582301323634,
-      "speaker_id": "7299"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004430.json b/conversations/conv_004430.json
deleted file mode 100644
index 1393c3755f584194722c5a07883edb94393aeb2d..0000000000000000000000000000000000000000
--- a/conversations/conv_004430.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 92330
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-      "utterance_id": "489-128340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-128340.flac |",
-      "real_speaker_id": "489",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.02255412164986,
-      "end_time": 32.0,
-      "duration": 0.9774458783501387,
-      "start_frame": 496360,
-      "duration_frames": 15639,
-      "overlap": false,
-      "utterance_id": "489-75909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75909.flac |",
-      "real_speaker_id": "489",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
-      "duration": 12.759365079365079,
-      "start_time": 5.952315720495097
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
-      "duration": 3.8410419340315833,
-      "start_time": 10.816157167492722
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
-      "duration": 4.830548060369148,
-      "start_time": 1.8403890555804727
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/118/laugh/0096.wav",
-      "duration": 0.96,
-      "start_time": 4.19963672636353,
-      "speaker_id": "118"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/173/cough/0041.wav",
-      "duration": 0.7109610109763527,
-      "start_time": 12.272364915469417,
-      "speaker_id": "173"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/489/cough/0076.wav",
-      "duration": 1.003908189034492,
-      "start_time": 23.456718929277653,
-      "speaker_id": "489"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/489/laugh/0084.wav",
-      "duration": 1.2239560327320576,
-      "start_time": 29.772650364989673,
-      "speaker_id": "489"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004437.json b/conversations/conv_004437.json
deleted file mode 100644
index f8da6935df65904acc58f5355440b659aaf1a36e..0000000000000000000000000000000000000000
--- a/conversations/conv_004437.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.64734204901642,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.604240273916277,
-      "start_frame": 0,
-      "duration_frames": 89667,
-      "overlap": false,
-      "utterance_id": "2445-148556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
-      "real_speaker_id": "2445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.7555203536234965,
-      "end_time": 11.472057702336645,
-      "duration": 5.71653734871315,
-      "start_frame": 92088,
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-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.723405196839767,
-      "end_time": 15.956379757485585,
-      "duration": 4.232974560645818,
-      "start_frame": 187574,
-      "duration_frames": 67727,
-      "overlap": false,
-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 91464
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.468542698990785,
-      "end_time": 20.93437634012429,
-      "duration": 4.465833641133506,
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-      "duration_frames": 71453,
-      "overlap": true,
-      "utterance_id": "826-131108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/826-131108.flac |",
-      "real_speaker_id": "826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.128316253444012,
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-      "duration_frames": 95838,
-      "overlap": false,
-      "utterance_id": "2445-148556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
-      "real_speaker_id": "2445",
-      "position_frames": 89667
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.3058307477329,
-      "end_time": 31.64734204901642,
-      "duration": 3.341511301283518,
-      "start_frame": 452893,
-      "duration_frames": 53464,
-      "overlap": true,
-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 159191
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-      "start_time": 7.995929509706257
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2445/laugh/0002.wav",
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-      "speaker_id": "2445"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1914/cough/0073.wav",
-      "duration": 0.6850659678988413,
-      "start_time": 8.78117666585235,
-      "speaker_id": "1914"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1914/laugh/0077.wav",
-      "duration": 0.7770868152815735,
-      "start_time": 14.890265983870957,
-      "speaker_id": "1914"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1914/laugh/0041.wav",
-      "duration": 0.98,
-      "start_time": 27.23102442129746,
-      "speaker_id": "1914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004447.json b/conversations/conv_004447.json
deleted file mode 100644
index d9f988ed8060e8a2e1e462178eb64dadef94327f..0000000000000000000000000000000000000000
--- a/conversations/conv_004447.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.73807175430176,
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-      "start_frame": 0,
-      "duration_frames": 91809,
-      "overlap": false,
-      "utterance_id": "318-124164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124164.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.039002488815809,
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-      "utterance_id": "5637-41170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41170.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3417-6522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3417-6522.flac |",
-      "real_speaker_id": "3417",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.945627684338454,
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-      "duration_frames": 53410,
-      "overlap": false,
-      "utterance_id": "3417-6522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3417-6522.flac |",
-      "real_speaker_id": "3417",
-      "position_frames": 84223
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.049483633343307,
-      "end_time": 26.585111617771144,
-      "duration": 4.535627984427837,
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-      "utterance_id": "318-124164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124164.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 91809
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.71865815366867,
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-      "duration": 4.28134184633133,
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-      "overlap": false,
-      "utterance_id": "5637-41166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41166.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 17.208646182697855,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
-      "duration": 4.6628878471135655,
-      "start_time": 19.769245709760852
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/318/laugh/0021.wav",
-      "duration": 1.36,
-      "start_time": 5.909003353104042,
-      "speaker_id": "318"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5637/laugh/0017.wav",
-      "duration": 1.2267393385882919,
-      "start_time": 11.916253706772045,
-      "speaker_id": "5637"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5637/cough/0038.wav",
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-      "start_time": 8.401379491098648,
-      "speaker_id": "5637"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3417/laugh/0015.wav",
-      "duration": 1.44,
-      "start_time": 14.787918185339208,
-      "speaker_id": "3417"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3417/laugh/0015.wav",
-      "duration": 1.44,
-      "start_time": 21.370528356565195,
-      "speaker_id": "3417"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3417/cough/0056.wav",
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-      "start_time": 17.219054287699773,
-      "speaker_id": "3417"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/318/cough/0058.wav",
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-      "start_time": 20.876760164117417,
-      "speaker_id": "318"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004451.json b/conversations/conv_004451.json
deleted file mode 100644
index b3206671f06c5440649d3f80c57d2c372d400256..0000000000000000000000000000000000000000
--- a/conversations/conv_004451.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "duration_frames": 51092,
-      "overlap": false,
-      "utterance_id": "5185-24770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5185-24770.flac |",
-      "real_speaker_id": "5185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.55824366682447,
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-      "utterance_id": "3983-5331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4592-26872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-26872.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.096529333235083,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 90577
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "4592-22179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22179.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5185-24767",
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-      "real_speaker_id": "5185",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
-      "duration": 1.0774603174603175,
-      "start_time": 9.383650351969582
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5185/laugh/0070.wav",
-      "duration": 1.3044953883549077,
-      "start_time": 0,
-      "speaker_id": "5185"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004460.json b/conversations/conv_004460.json
deleted file mode 100644
index 5ddbe8587ddcc0f9b55cd5afa3b6414c35a45839..0000000000000000000000000000000000000000
--- a/conversations/conv_004460.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.837889856281263,
-      "duration": 4.837889856281263,
-      "start_frame": 0,
-      "duration_frames": 77406,
-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.787805569173642,
-      "end_time": 10.102354178469028,
-      "duration": 5.314548609295385,
-      "start_frame": 76604,
-      "duration_frames": 85032,
-      "overlap": true,
-      "utterance_id": "7246-86779",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-86779.flac |",
-      "real_speaker_id": "7246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.940798367710855,
-      "end_time": 14.518433683961952,
-      "duration": 3.577635316251098,
-      "start_frame": 175052,
-      "duration_frames": 57242,
-      "overlap": false,
-      "utterance_id": "5448-19208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.375273710902164,
-      "end_time": 21.35512541994579,
-      "duration": 5.979851709043625,
-      "start_frame": 246004,
-      "duration_frames": 95677,
-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 77406
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.90684091387324,
-      "end_time": 25.32085497066966,
-      "duration": 3.4140140567964203,
-      "start_frame": 350509,
-      "duration_frames": 54624,
-      "overlap": false,
-      "utterance_id": "5448-19208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 57242
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.515885216458322,
-      "end_time": 32.0,
-      "duration": 6.484114783541678,
-      "start_frame": 408254,
-      "duration_frames": 103745,
-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 173083
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 19.322849419838366
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5448/laugh/0015.wav",
-      "duration": 0.8196373365381622,
-      "start_time": 12.000430793507464,
-      "speaker_id": "5448"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5448/laugh/0100.wav",
-      "duration": 1.08,
-      "start_time": 25.533380629748386,
-      "speaker_id": "5448"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5448/cough/0100.wav",
-      "duration": 0.92,
-      "start_time": 25.3815069755956,
-      "speaker_id": "5448"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004467.json b/conversations/conv_004467.json
deleted file mode 100644
index f075904af5b63964c18678d692b1a89285f42e11..0000000000000000000000000000000000000000
--- a/conversations/conv_004467.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.41733217320506,
-      "duration": 3.41733217320506,
-      "start_frame": 0,
-      "duration_frames": 54677,
-      "overlap": false,
-      "utterance_id": "5796-49593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-49593.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.631892675150251,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-51153.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.57196431430779,
-      "end_time": 21.972951942370067,
-      "duration": 4.400987628062277,
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-      "overlap": false,
-      "utterance_id": "5796-66357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-66357.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.33057264108381,
-      "end_time": 26.258588503169552,
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-      "utterance_id": "1154-134887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134887.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.11291045734018,
-      "end_time": 32.0,
-      "duration": 4.887089542659819,
-      "start_frame": 433806,
-      "duration_frames": 78193,
-      "overlap": false,
-      "utterance_id": "5796-66357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-66357.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 70415
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.7788932336730874,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5796/cough/0101.wav",
-      "duration": 1.025506862991324,
-      "start_time": 30.974493137008675,
-      "speaker_id": "5796"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004471.json b/conversations/conv_004471.json
deleted file mode 100644
index a3ffda9d3ce0a0c9d646eacc061ad6f0ff34c7fe..0000000000000000000000000000000000000000
--- a/conversations/conv_004471.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration_frames": 84634,
-      "overlap": false,
-      "utterance_id": "803-139752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/803-139752.flac |",
-      "real_speaker_id": "803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.34679127090826,
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-      "utterance_id": "3699-19402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-19402.flac |",
-      "real_speaker_id": "3699",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274346.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "3699-47246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-47246.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.587634364381486,
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-      "utterance_id": "8095-274345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274345.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.511515171096296,
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-      "utterance_id": "3699-47246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-47246.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 71447
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_004476.json b/conversations/conv_004476.json
deleted file mode 100644
index 2c3237ebc4e8b3e858cac17c5e7f5bcb5d30dbdc..0000000000000000000000000000000000000000
--- a/conversations/conv_004476.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.468882157091304,
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-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.281486048834414,
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-      "utterance_id": "6904-262291",
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-      "real_speaker_id": "6904",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "8500-258287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258287.flac |",
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-    {
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-    {
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-      "utterance_id": "8500-258285",
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-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-      "speaker_id": "6904"
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-      "speaker_id": "8500"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6904/laugh/0029.wav",
-      "duration": 1.16,
-      "start_time": 28.092276686050575,
-      "speaker_id": "6904"
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-    {
-      "event_class": "cough",
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-      "start_time": 27.938891914160816,
-      "speaker_id": "6904"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004484.json b/conversations/conv_004484.json
deleted file mode 100644
index 1f850852af0b94c2ac962f45de2608a98d44487e..0000000000000000000000000000000000000000
--- a/conversations/conv_004484.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.112336363157959,
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-      "start_frame": 0,
-      "duration_frames": 65797,
-      "overlap": false,
-      "utterance_id": "2688-144986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144986.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.4876855418659725,
-      "end_time": 10.271057351373404,
-      "duration": 5.783371809507432,
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-      "utterance_id": "7603-274560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.520802259668113,
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-      "start_frame": 168332,
-      "duration_frames": 66296,
-      "overlap": false,
-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.711559675797844,
-      "end_time": 21.831572444847495,
-      "duration": 6.120012769049651,
-      "start_frame": 251384,
-      "duration_frames": 97920,
-      "overlap": false,
-      "utterance_id": "7603-274560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 92533
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.222471107676668,
-      "end_time": 26.85992877336933,
-      "duration": 4.637457665692661,
-      "start_frame": 355559,
-      "duration_frames": 74199,
-      "overlap": false,
-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 66296
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.390058989542,
-      "end_time": 32.0,
-      "duration": 4.609941010458002,
-      "start_frame": 438240,
-      "duration_frames": 73759,
-      "overlap": false,
-      "utterance_id": "2688-144986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144986.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 65797
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "duration": 1.04,
-      "start_time": 1.8812775005738065,
-      "speaker_id": "2688"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 10.84895611166483,
-      "speaker_id": "2688"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7603/laugh/0005.wav",
-      "duration": 1.0,
-      "start_time": 22.031024709363024,
-      "speaker_id": "7603"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2688/cough/0105.wav",
-      "duration": 0.6029275097490812,
-      "start_time": 31.39707249025092,
-      "speaker_id": "2688"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004488.json b/conversations/conv_004488.json
deleted file mode 100644
index 8b65d11cd0e0a1a1a6b5d9deaa0305d985d6509a..0000000000000000000000000000000000000000
--- a/conversations/conv_004488.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8190-284434",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284434.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.63833374419444,
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-      "utterance_id": "8190-284434",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284434.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 98342
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-      "segment_id": "seg0002",
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-      "duration_frames": 67711,
-      "overlap": false,
-      "utterance_id": "2092-145706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145706.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.867095969343012,
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-      "start_frame": 285873,
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-      "overlap": false,
-      "utterance_id": "8879-300234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300234.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.194188746846553,
-      "end_time": 29.236232237266613,
-      "duration": 6.042043490420058,
-      "start_frame": 371107,
-      "duration_frames": 96672,
-      "overlap": true,
-      "utterance_id": "8190-284434",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284434.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 183477
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.84610181208018,
-      "end_time": 32.0,
-      "duration": 2.1538981879198182,
-      "start_frame": 477537,
-      "duration_frames": 34462,
-      "overlap": false,
-      "utterance_id": "2092-145706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145706.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 67711
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 4.859441063225637,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
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-      "start_time": 31.567193151861712,
-      "speaker_id": "2092"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004492.json b/conversations/conv_004492.json
deleted file mode 100644
index 921fac2d2d21bee03fd91c774181fb5021c44e4f..0000000000000000000000000000000000000000
--- a/conversations/conv_004492.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.8062664154957115,
-      "start_frame": 0,
-      "duration_frames": 92900,
-      "overlap": false,
-      "utterance_id": "3373-174981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174981.flac |",
-      "real_speaker_id": "3373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.371843809451437,
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-      "duration_frames": 83879,
-      "overlap": false,
-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.871326457209312,
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-      "overlap": true,
-      "utterance_id": "3373-174981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174981.flac |",
-      "real_speaker_id": "3373",
-      "position_frames": 92900
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.652657424095572,
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-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
-      "real_speaker_id": "6236",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.038781238456128,
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-      "utterance_id": "3373-174981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174981.flac |",
-      "real_speaker_id": "3373",
-      "position_frames": 173523
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.562970237582796,
-      "end_time": 32.0,
-      "duration": 1.437029762417204,
-      "start_frame": 489007,
-      "duration_frames": 22992,
-      "overlap": false,
-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 83879
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6157/cough/0057.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6236/laugh/0060.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6236/cough/0128.wav",
-      "duration": 0.48540919715218445,
-      "start_time": 17.059590690135888,
-      "speaker_id": "6236"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004499.json b/conversations/conv_004499.json
deleted file mode 100644
index 5572831d9fabd8646b231d54ba87b9ee96a9ab54..0000000000000000000000000000000000000000
--- a/conversations/conv_004499.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.3770908025313,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.2890811849449015,
-      "duration": 5.2890811849449015,
-      "start_frame": 0,
-      "duration_frames": 84625,
-      "overlap": false,
-      "utterance_id": "572-128861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-128861.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.751712961393614,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6482-98857.flac |",
-      "real_speaker_id": "6482",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "572-126495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-126495.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "4545-9166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-128861.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 84625
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-126495.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 55982
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/572/laugh/0083.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4545/laugh/0091.wav",
-      "duration": 0.5571503193390629,
-      "start_time": 20.398523304005636,
-      "speaker_id": "4545"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004502.json b/conversations/conv_004502.json
deleted file mode 100644
index a68b8a3d24e04a93b5fb2238420d2b482c83ca8a..0000000000000000000000000000000000000000
--- a/conversations/conv_004502.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.45190857713315,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139710.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.807321104523545,
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-      "duration_frames": 103386,
-      "overlap": false,
-      "utterance_id": "3417-6522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3417-6522.flac |",
-      "real_speaker_id": "3417",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.20670388190107,
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-      "start_frame": 275307,
-      "duration_frames": 59738,
-      "overlap": false,
-      "utterance_id": "1629-139710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139710.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 76994
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.436313650011197,
-      "end_time": 27.519713119737496,
-      "duration": 6.083399469726297,
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-      "duration_frames": 97334,
-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 65755
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.051835232192204,
-      "end_time": 32.0,
-      "duration": 3.9481647678077962,
-      "start_frame": 448829,
-      "duration_frames": 63170,
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-      "utterance_id": "3417-6522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3417-6522.flac |",
-      "real_speaker_id": "3417",
-      "position_frames": 103386
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 8.643478941094179,
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-    {
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-      "speaker_id": "3417"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004514.json b/conversations/conv_004514.json
deleted file mode 100644
index 7849f785878529e198f23dbdb12a8f914b0d2b93..0000000000000000000000000000000000000000
--- a/conversations/conv_004514.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.175060970402892,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216567.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.200785038749138,
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-      "utterance_id": "8534-216564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216564.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.430641828083854,
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-      "overlap": false,
-      "utterance_id": "8799-291938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-291938.flac |",
-      "real_speaker_id": "8799",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.42887116235531,
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-      "duration": 6.405458588976519,
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-      "duration_frames": 102487,
-      "overlap": false,
-      "utterance_id": "8534-216567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216567.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 78061
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.185181216967703,
-      "end_time": 31.175060970402892,
-      "duration": 4.989879753435189,
-      "start_frame": 418962,
-      "duration_frames": 79838,
-      "overlap": true,
-      "utterance_id": "8799-270794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-270794.flac |",
-      "real_speaker_id": "8799",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8534/laugh/0092.wav",
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-      "speaker_id": "8534"
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 27.421860548822753,
-      "speaker_id": "8799"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004518.json b/conversations/conv_004518.json
deleted file mode 100644
index 94a3a68bbd7e33bd4fcd7dfb057375774f73edc3..0000000000000000000000000000000000000000
--- a/conversations/conv_004518.json
+++ /dev/null
@@ -1,186 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.25,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.481184431259786,
-      "duration": 4.481184431259786,
-      "start_frame": 0,
-      "duration_frames": 71698,
-      "overlap": false,
-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 71698
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.410331899939699,
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-      "utterance_id": "3470-116548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3470-116548.flac |",
-      "real_speaker_id": "3470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.38157569980983,
-      "end_time": 22.11563646632806,
-      "duration": 3.7340607665182293,
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-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 135792
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 22.854348877873733,
-      "end_time": 26.836967644612407,
-      "duration": 3.9826187667386748,
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-      "duration_frames": 63721,
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-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 56865
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 27.125573643954215,
-      "end_time": 30.568305254268726,
-      "duration": 3.44273161031451,
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-      "overlap": false,
-      "utterance_id": "3470-116549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3470-116549.flac |",
-      "real_speaker_id": "3470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 2,
-      "start_time": 30.69063398415822,
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-      "duration": 1.3093660158417784,
-      "start_frame": 491050,
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-      "position_frames": 0
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3470/laugh/0102.wav",
-      "duration": 1.058111478393644,
-      "start_time": 12.266314232034496,
-      "speaker_id": "3470"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2812/laugh/0021.wav",
-      "duration": 1.12,
-      "start_time": 18.924203477127712,
-      "speaker_id": "2812"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7208/cough/0036.wav",
-      "duration": 0.9764428181525933,
-      "start_time": 31.02355718184741,
-      "speaker_id": "7208"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004522.json b/conversations/conv_004522.json
deleted file mode 100644
index 0124e75b72bbdc2dc4be52a084f085bbce793181..0000000000000000000000000000000000000000
--- a/conversations/conv_004522.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.257552372924426,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6446-40571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40571.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
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-      "real_speaker_id": "1367",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "position_frames": 0
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-      "duration": 1.42,
-      "start_time": 0,
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\ No newline at end of file
diff --git a/conversations/conv_004525.json b/conversations/conv_004525.json
deleted file mode 100644
index d35ba14bfd97b881dd2201392ec5e9e3af825a3c..0000000000000000000000000000000000000000
--- a/conversations/conv_004525.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.64713267358305,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4331-57179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-57179.flac |",
-      "real_speaker_id": "4331",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
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-      "real_speaker_id": "3955",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
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-      "start_time": 23.176224961870865,
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-      "real_speaker_id": "3955",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-57179.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_0.wav",
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-      "duration": 1.24,
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-      "speaker_id": "4331"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004533.json b/conversations/conv_004533.json
deleted file mode 100644
index 6ea38b05e924e0e2b49436f4dfae77ea4cb31382..0000000000000000000000000000000000000000
--- a/conversations/conv_004533.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "position_frames": 105160
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-      "position_frames": 82337
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "253",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_004534.json b/conversations/conv_004534.json
deleted file mode 100644
index 88c545ebd3b6fa340804075638d8e1a44660864c..0000000000000000000000000000000000000000
--- a/conversations/conv_004534.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
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-      "real_speaker_id": "5198",
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-      "real_speaker_id": "5043",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "8272",
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-    {
-      "segment_id": "seg0004",
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-  "background_events": [
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-      "start_time": 0,
-      "speaker_id": "8272"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004538.json b/conversations/conv_004538.json
deleted file mode 100644
index a707c28d3f5f4d912b85975449e8cd367ec96056..0000000000000000000000000000000000000000
--- a/conversations/conv_004538.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.180299507402363,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3503-127082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127082.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "2790",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1638-84448",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 108937
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127082.flac |",
-      "real_speaker_id": "3503",
-      "position_frames": 62409
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "speaker_id": "3503"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004543.json b/conversations/conv_004543.json
deleted file mode 100644
index ea279a7a4adac83c5dab1f084bd306785bc66606..0000000000000000000000000000000000000000
--- a/conversations/conv_004543.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.335131549447517,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "start_time": 0.0,
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-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.498502143362361,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-35690.flac |",
-      "real_speaker_id": "5750",
-      "position_frames": 0
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-      "utterance_id": "5750-100289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-100289.flac |",
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-      "utterance_id": "4039-184265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184265.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 18.420788704398372,
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-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 85537
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-100289.flac |",
-      "real_speaker_id": "5750",
-      "position_frames": 61917
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "4039-184265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184265.flac |",
-      "real_speaker_id": "4039",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_004548.json b/conversations/conv_004548.json
deleted file mode 100644
index 2d234ea93731fadae8bb52315d4cc6e4c6f34f65..0000000000000000000000000000000000000000
--- a/conversations/conv_004548.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
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-      "real_speaker_id": "2533",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 146898
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "899-126233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126233.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "real_speaker_id": "3307",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004555.json b/conversations/conv_004555.json
deleted file mode 100644
index 86c22271307722a4c3556c0fa72af502e4fdf6e5..0000000000000000000000000000000000000000
--- a/conversations/conv_004555.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1485-121385",
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-      "real_speaker_id": "1485",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-232291.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.86684599462705,
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-      "real_speaker_id": "1049",
-      "position_frames": 80039
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "real_speaker_id": "6540",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "6540"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004558.json b/conversations/conv_004558.json
deleted file mode 100644
index 4fcb3f142f4c9dd8105698ba54ca3938ac9196f3..0000000000000000000000000000000000000000
--- a/conversations/conv_004558.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2149-7235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-7235.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_004559.json b/conversations/conv_004559.json
deleted file mode 100644
index 2415f850f9712636c40a00df1e744489415477b8..0000000000000000000000000000000000000000
--- a/conversations/conv_004559.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282967.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
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-      "speaker_id": 0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_004563.json b/conversations/conv_004563.json
deleted file mode 100644
index 6134dc00fc08607f3b43ea9b5b31eec5bb3c6b77..0000000000000000000000000000000000000000
--- a/conversations/conv_004563.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3607-29116",
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-      "real_speaker_id": "3607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4894-7788",
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-      "real_speaker_id": "4894",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_004564.json b/conversations/conv_004564.json
deleted file mode 100644
index e95303740adc453f8938b0296f2dc4ca5a49061a..0000000000000000000000000000000000000000
--- a/conversations/conv_004564.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131232.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-99140.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.330750304796638,
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-}
\ No newline at end of file
diff --git a/conversations/conv_004572.json b/conversations/conv_004572.json
deleted file mode 100644
index 6a93fa8f3afa75dd6302548d9b44a2bc6aa859df..0000000000000000000000000000000000000000
--- a/conversations/conv_004572.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0053771075223414,
-      "duration": 3.0053771075223414,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3994-149798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-149798.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 2.451293204071649,
-      "end_time": 7.279053368986184,
-      "duration": 4.827760164914535,
-      "start_frame": 39220,
-      "duration_frames": 77244,
-      "overlap": true,
-      "utterance_id": "6189-64708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.977183725578502,
-      "end_time": 13.629317407337311,
-      "duration": 4.652133681758809,
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-      "duration_frames": 74434,
-      "overlap": false,
-      "utterance_id": "6189-21305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-21305.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-21305.flac |",
-      "real_speaker_id": "6189",
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "3994-11512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-11512.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.15016857954496,
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-      "overlap": false,
-      "utterance_id": "6189-64708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 77244
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.07673773430615,
-      "end_time": 32.0,
-      "duration": 2.9232622656938503,
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-      "overlap": false,
-      "utterance_id": "3994-149798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-149798.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 48086
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 14.955166129954797,
-      "start_time": 3.147453269472876
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3994/laugh/0034.wav",
-      "duration": 0.8773837616344073,
-      "start_time": 1.820023923275276,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6189/cough/0065.wav",
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-      "speaker_id": "6189"
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-      "event_class": "cough",
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-      "start_time": 24.010320007647138,
-      "speaker_id": "3994"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6189/laugh/0049.wav",
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-      "start_time": 26.968473295182214,
-      "speaker_id": "6189"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3994/laugh/0001.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3994/cough/0002.wav",
-      "duration": 0.7954730106035617,
-      "start_time": 28.13772605537679,
-      "speaker_id": "3994"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004575.json b/conversations/conv_004575.json
deleted file mode 100644
index 8abed9545e9244130df0a7e47ba4b4cbbf37fecb..0000000000000000000000000000000000000000
--- a/conversations/conv_004575.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.292169118992036,
-      "duration": 3.292169118992036,
-      "start_frame": 0,
-      "duration_frames": 52674,
-      "overlap": false,
-      "utterance_id": "5043-28402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28402.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.6054527568270744,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5043-28396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 55683
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 12.022494774870015,
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-      "overlap": false,
-      "utterance_id": "398-130093",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-130093.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.208681069001386,
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-      "duration": 4.691888549520571,
-      "start_frame": 275338,
-      "duration_frames": 75070,
-      "overlap": false,
-      "utterance_id": "5043-28396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 116371
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 22.843643367996094,
-      "end_time": 29.31497365768861,
-      "duration": 6.471330289692515,
-      "start_frame": 365498,
-      "duration_frames": 103541,
-      "overlap": false,
-      "utterance_id": "398-123602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-123602.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.632044747783947,
-      "end_time": 32.0,
-      "duration": 2.3679552522160527,
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-      "overlap": false,
-      "utterance_id": "4191-69032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-69032.flac |",
-      "real_speaker_id": "4191",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
-      "duration": 2.249795918367347,
-      "start_time": 0.9636709985786377
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5043/laugh/0108.wav",
-      "duration": 0.824130925781156,
-      "start_time": 3.56829397960253,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 18.548448435054066,
-      "speaker_id": "5043"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004579.json b/conversations/conv_004579.json
deleted file mode 100644
index 40007b7addb2e5b84e6aa6e9e8ffeea9e724c1d7..0000000000000000000000000000000000000000
--- a/conversations/conv_004579.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "2204-131732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
-      "real_speaker_id": "2204",
-      "position_frames": 0
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-      "real_speaker_id": "969",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134363.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6529",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2204-131732",
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-      "position_frames": 147225
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004580.json b/conversations/conv_004580.json
deleted file mode 100644
index 1672df6e6b292a9a0c784388a4f799af81f7eaa2..0000000000000000000000000000000000000000
--- a/conversations/conv_004580.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "end_time": 6.6155052010267354,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-15787.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-700.flac |",
-      "real_speaker_id": "3869",
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-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5688/laugh/0118.wav",
-      "duration": 0.96,
-      "start_time": 6.660505464776406,
-      "speaker_id": "5688"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3869/laugh/0072.wav",
-      "duration": 1.34,
-      "start_time": 12.82674387873518,
-      "speaker_id": "3869"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2577/cough/0067.wav",
-      "duration": 1.481055060518788,
-      "start_time": 30.518944939481212,
-      "speaker_id": "2577"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004596.json b/conversations/conv_004596.json
deleted file mode 100644
index bfdb1d53f306d610d32331e996775dde8aa58bbc..0000000000000000000000000000000000000000
--- a/conversations/conv_004596.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.030236738288437,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8183769945640744,
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-      "overlap": false,
-      "utterance_id": "331-135126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-135126.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.054024368002787,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.988055274193412,
-      "end_time": 13.103481538149332,
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-      "duration_frames": 49846,
-      "overlap": false,
-      "utterance_id": "331-132019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-132019.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.204029763447437,
-      "end_time": 19.969307339953527,
-      "duration": 6.765277576506089,
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-      "overlap": false,
-      "utterance_id": "331-135126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-135126.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 61094
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.116915177869217,
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-      "utterance_id": "4854-24732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24732.flac |",
-      "real_speaker_id": "4854",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.5792997419445,
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-      "utterance_id": "6533-399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
-      "position_frames": 83390
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4854/laugh/0072.wav",
-      "duration": 0.7359722736997545,
-      "start_time": 20.259646651913823,
-      "speaker_id": "4854"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004607.json b/conversations/conv_004607.json
deleted file mode 100644
index 5867522a90bc39a313640a6c3cd92d4acdb0e00d..0000000000000000000000000000000000000000
--- a/conversations/conv_004607.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4841-26660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26660.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.692314515195928,
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-      "utterance_id": "1367-291931",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291931.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.157958974796983,
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-      "duration_frames": 101111,
-      "overlap": false,
-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 73665
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.110415004529376,
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-      "duration": 5.889584995470624,
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-      "overlap": false,
-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 56281
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_004611.json b/conversations/conv_004611.json
deleted file mode 100644
index 09f422d3c2b78f46ce43d329798d9576877a117b..0000000000000000000000000000000000000000
--- a/conversations/conv_004611.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.151386600315032,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1708-142417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142417.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.883678612480655,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
-      "real_speaker_id": "365",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 96613
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 78655
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2026-81609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81609.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
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-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "2026"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004626.json b/conversations/conv_004626.json
deleted file mode 100644
index 95a0e1eb58d77f715065589643a0626b88f99012..0000000000000000000000000000000000000000
--- a/conversations/conv_004626.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.19402397319617,
-      "start_frame": 0,
-      "duration_frames": 99104,
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-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.24,
-      "start_time": 12.352373597684212,
-      "speaker_id": "4599"
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 12.832949628389713,
-      "speaker_id": "2401"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004627.json b/conversations/conv_004627.json
deleted file mode 100644
index beb523ad20884db1a71618c2d066dfbc9514161a..0000000000000000000000000000000000000000
--- a/conversations/conv_004627.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.897918473294064,
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-      "overlap": false,
-      "utterance_id": "4455-116276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-116276.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.51213312387183,
-      "end_time": 11.874278239773476,
-      "duration": 6.362145115901646,
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-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-116276.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 78366
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.00710471121758,
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-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 101794
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.103024182733364,
-      "end_time": 28.748803520929492,
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-      "overlap": true,
-      "utterance_id": "4455-14896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-14896.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.349968324601164,
-      "end_time": 32.0,
-      "duration": 2.6500316753988358,
-      "start_frame": 469599,
-      "duration_frames": 42400,
-      "overlap": false,
-      "utterance_id": "6895-92806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92806.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "start_time": 1.9056209996966667
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
-      "duration": 0.2008390022675737,
-      "start_time": 11.026530285181169
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-    {
-      "event_class": "Blender",
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-      "duration": 1.6871732392964,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "6895"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004631.json b/conversations/conv_004631.json
deleted file mode 100644
index 8e46d8c93469695ece829a7b729e91c869200789..0000000000000000000000000000000000000000
--- a/conversations/conv_004631.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.15530276553279,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3274-163518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3274-163518.flac |",
-      "real_speaker_id": "3274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "6494",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273138.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.794741957877715,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60774.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3274",
-      "position_frames": 88835
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8012-273154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "laugh",
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-    {
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-      "speaker_id": "3274"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004646.json b/conversations/conv_004646.json
deleted file mode 100644
index b636ec43d10c3dd6c4cbc68d1f793a2153f2fe6c..0000000000000000000000000000000000000000
--- a/conversations/conv_004646.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-58090.flac |",
-      "real_speaker_id": "6060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 85634
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 52436
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.353712295447774,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-106611.flac |",
-      "real_speaker_id": "6060",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6060/laugh/0080.wav",
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-      "speaker_id": "816"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004650.json b/conversations/conv_004650.json
deleted file mode 100644
index ed7d12033121c2f725b2a177d6190a579e07355a..0000000000000000000000000000000000000000
--- a/conversations/conv_004650.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3549-171171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3549-171171.flac |",
-      "real_speaker_id": "3549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3549-171171.flac |",
-      "real_speaker_id": "3549",
-      "position_frames": 65081
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.485593936602662,
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-      "utterance_id": "6199-48196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-48196.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3549-171171.flac |",
-      "real_speaker_id": "3549",
-      "position_frames": 164798
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.374652911523984,
-      "end_time": 32.0,
-      "duration": 0.6253470884760155,
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-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 108457
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
-      "duration": 1.7548299319727891,
-      "start_time": 6.763634181419684
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
-      "duration": 2.577784034352821,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6199/cough/0092.wav",
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-      "speaker_id": "6199"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004666.json b/conversations/conv_004666.json
deleted file mode 100644
index 8b9e46f4b97ec36c0b60178f6649096b9a007f8c..0000000000000000000000000000000000000000
--- a/conversations/conv_004666.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.420965899540587,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.752141572251254,
-      "duration": 6.752141572251254,
-      "start_frame": 0,
-      "duration_frames": 108034,
-      "overlap": false,
-      "utterance_id": "6131-229040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.940034890202872,
-      "end_time": 13.518721303636575,
-      "duration": 6.578686413433702,
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-      "overlap": false,
-      "utterance_id": "8356-240982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8356-240982.flac |",
-      "real_speaker_id": "8356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.455951256423681,
-      "end_time": 21.31605928907682,
-      "duration": 6.8601080326531365,
-      "start_frame": 231295,
-      "duration_frames": 109761,
-      "overlap": false,
-      "utterance_id": "6131-229040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 108034
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.864869909474418,
-      "end_time": 26.465555720250073,
-      "duration": 4.600685810775657,
-      "start_frame": 349837,
-      "duration_frames": 73610,
-      "overlap": false,
-      "utterance_id": "8356-240982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8356-240982.flac |",
-      "real_speaker_id": "8356",
-      "position_frames": 105258
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.47715400369176,
-      "end_time": 31.420965899540587,
-      "duration": 4.943811895848828,
-      "start_frame": 423634,
-      "duration_frames": 79100,
-      "overlap": true,
-      "utterance_id": "4490-16002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16002.flac |",
-      "real_speaker_id": "4490",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.273828090164403,
-      "start_time": 3.8329601233358526
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4490/cough/0040.wav",
-      "duration": 0.575524342666405,
-      "start_time": 31.424475657333595,
-      "speaker_id": "4490"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004670.json b/conversations/conv_004670.json
deleted file mode 100644
index f88d0c7571694177a362f0485e63eb0ff70e7f39..0000000000000000000000000000000000000000
--- a/conversations/conv_004670.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3513-163606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-163606.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.63113934818065,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-109507.flac |",
-      "real_speaker_id": "5304",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.19876455526817,
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-      "duration_frames": 65217,
-      "overlap": true,
-      "utterance_id": "3046-137739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-137739.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.898007132296703,
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-      "duration_frames": 69506,
-      "overlap": false,
-      "utterance_id": "5304-55856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-55856.flac |",
-      "real_speaker_id": "5304",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.081480780288278,
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-      "overlap": false,
-      "utterance_id": "3046-148993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-148993.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.96138245214197,
-      "end_time": 30.787189451959,
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-      "start_frame": 431382,
-      "duration_frames": 61212,
-      "overlap": false,
-      "utterance_id": "3513-7741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-7741.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.38605748815964,
-      "end_time": 32.0,
-      "duration": 0.6139425118403601,
-      "start_frame": 502176,
-      "duration_frames": 9823,
-      "overlap": false,
-      "utterance_id": "3046-137739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-137739.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 65217
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "start_time": 30.62684192790932,
-      "speaker_id": "3513"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004671.json b/conversations/conv_004671.json
deleted file mode 100644
index 4b3df749d04b2826f68f55d0c5ac00a92b9df354..0000000000000000000000000000000000000000
--- a/conversations/conv_004671.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.387157656276738,
-      "end_time": 11.669895108796915,
-      "duration": 5.282737452520176,
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-      "duration_frames": 84523,
-      "overlap": true,
-      "utterance_id": "8012-273137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273137.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 84755,
-      "overlap": false,
-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.638079080378702,
-      "end_time": 23.591345612590068,
-      "duration": 3.953266532211366,
-      "start_frame": 314209,
-      "duration_frames": 63252,
-      "overlap": true,
-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 99157
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.217190245031595,
-      "end_time": 28.8263953485272,
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-      "duration_frames": 73747,
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-      "utterance_id": "8012-273138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273138.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.0540015853243,
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-      "duration": 1.9459984146756995,
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-      "duration_frames": 31135,
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-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 84755
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  ],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5269/laugh/0019.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6963/laugh/0090.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5269/laugh/0020.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5269/cough/0020.wav",
-      "duration": 1.4872493545687102,
-      "start_time": 17.960806492552813,
-      "speaker_id": "5269"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8012/laugh/0036.wav",
-      "duration": 1.16,
-      "start_time": 28.920244844997292,
-      "speaker_id": "8012"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6963/cough/0004.wav",
-      "duration": 0.8387480368045113,
-      "start_time": 29.19467607310586,
-      "speaker_id": "6963"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004685.json b/conversations/conv_004685.json
deleted file mode 100644
index 2d658ab54c4efc85164263660cf3e5f24e543321..0000000000000000000000000000000000000000
--- a/conversations/conv_004685.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.526047294650479,
-      "duration": 5.526047294650479,
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-      "overlap": false,
-      "utterance_id": "1313-136054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-136054.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1494-138315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
-      "real_speaker_id": "1494",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.54955712936571,
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-      "duration": 5.999639479031245,
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-      "duration_frames": 95994,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
-      "real_speaker_id": "1494",
-      "position_frames": 109004
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_004689.json b/conversations/conv_004689.json
deleted file mode 100644
index 12f938f48ce71fb7901f6f264f4a4d0fbdc6f5b2..0000000000000000000000000000000000000000
--- a/conversations/conv_004689.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3526-176651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3526-176651.flac |",
-      "real_speaker_id": "3526",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 6.364304707733854,
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-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
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-      "speaker_id": 0,
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-      "utterance_id": "5172-29468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 84037
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.71305046013888,
-      "end_time": 32.0,
-      "duration": 3.2869495398611193,
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-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 81600
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_004693.json b/conversations/conv_004693.json
deleted file mode 100644
index 4601bbe22b15aeac211573177cda7f15d2ee132c..0000000000000000000000000000000000000000
--- a/conversations/conv_004693.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.05674931009989,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
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-      "real_speaker_id": "3807",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27768.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 86518
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "foreground_events": [
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-      "speaker_id": "4965"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004703.json b/conversations/conv_004703.json
deleted file mode 100644
index fb245a902bac6e7a0e9a7d1bfa75430de87ccc86..0000000000000000000000000000000000000000
--- a/conversations/conv_004703.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7138-73705",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "177",
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-}
\ No newline at end of file
diff --git a/conversations/conv_004708.json b/conversations/conv_004708.json
deleted file mode 100644
index a3b5911ac1d87be93d569db20a1bc7f86ab8819c..0000000000000000000000000000000000000000
--- a/conversations/conv_004708.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.192340089610283,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86027.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6072-67782.flac |",
-      "real_speaker_id": "6072",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86027.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 82227
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "duration": 1.04,
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_004715.json b/conversations/conv_004715.json
deleted file mode 100644
index 331fd52f79dcbc5891fcd5178b5354710c821c7b..0000000000000000000000000000000000000000
--- a/conversations/conv_004715.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.269259616096186,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6788-92420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-92420.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 6.7736449112809805,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6115-58433.flac |",
-      "real_speaker_id": "6115",
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-      "segment_id": "seg0002",
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-      "utterance_id": "6115-58433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6115-58433.flac |",
-      "real_speaker_id": "6115",
-      "position_frames": 60399
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6788-96241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-96241.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.48150011331438,
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-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 0
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-      "event_class": "Dishes",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004719.json b/conversations/conv_004719.json
deleted file mode 100644
index 729c972e9320e06d78efce96ce794bfe31f28e8b..0000000000000000000000000000000000000000
--- a/conversations/conv_004719.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6006-57831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
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-      "position_frames": 107522
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1773/laugh/0005.wav",
-      "duration": 1.22,
-      "start_time": 14.130426352104967,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1773/laugh/0050.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004723.json b/conversations/conv_004723.json
deleted file mode 100644
index f982d4a3545a0cdf7349f33a4087141015283a00..0000000000000000000000000000000000000000
--- a/conversations/conv_004723.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "240-160593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/240-160593.flac |",
-      "real_speaker_id": "240",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2999-156967.flac |",
-      "real_speaker_id": "2999",
-      "position_frames": 0
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-      "real_speaker_id": "2999",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
-      "real_speaker_id": "2416",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "240",
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-      "segment_id": "seg0005",
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-      "position_frames": 98858
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_004734.json b/conversations/conv_004734.json
deleted file mode 100644
index ecaf59de6d1d37bd908d0e955ffe5afdaf4396ff..0000000000000000000000000000000000000000
--- a/conversations/conv_004734.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "6902-89167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89167.flac |",
-      "real_speaker_id": "6902",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5545",
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-      "speaker_id": "6902"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004735.json b/conversations/conv_004735.json
deleted file mode 100644
index 9f60c918da6423d9db1cd84b6b3972f150b58873..0000000000000000000000000000000000000000
--- a/conversations/conv_004735.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7001-12337.flac |",
-      "real_speaker_id": "7001",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-41998.flac |",
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-      "real_speaker_id": "7169",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6081-42010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-42010.flac |",
-      "real_speaker_id": "6081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.47192567491749,
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-}
\ No newline at end of file
diff --git a/conversations/conv_004739.json b/conversations/conv_004739.json
deleted file mode 100644
index 23e81665e057c418c04c352bee8708f9a7a874ad..0000000000000000000000000000000000000000
--- a/conversations/conv_004739.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1815-143382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143382.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "3869",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004742.json b/conversations/conv_004742.json
deleted file mode 100644
index 00a2d59301e77df71e8e466fc2104c4a74f0d208..0000000000000000000000000000000000000000
--- a/conversations/conv_004742.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.701936415403278,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7603-274560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
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-    {
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_004749.json b/conversations/conv_004749.json
deleted file mode 100644
index 6f8a105702b7aad545b74a917d16282cad9fd538..0000000000000000000000000000000000000000
--- a/conversations/conv_004749.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7603-274560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_004754.json b/conversations/conv_004754.json
deleted file mode 100644
index e3491787d9f6fc7ff6776dd441478904e8d0a39b..0000000000000000000000000000000000000000
--- a/conversations/conv_004754.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.42020127934639,
-  "num_speakers": 3,
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-      "real_speaker_id": "1789",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92139.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "7910",
-      "position_frames": 88860
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92174.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_004758.json b/conversations/conv_004758.json
deleted file mode 100644
index 1cc8d25389d95d0f8539c07ce9aea04384d65bb5..0000000000000000000000000000000000000000
--- a/conversations/conv_004758.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76262.flac |",
-      "real_speaker_id": "4441",
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-}
\ No newline at end of file
diff --git a/conversations/conv_004762.json b/conversations/conv_004762.json
deleted file mode 100644
index e959fa380633eb199314dd062cd1eac9c957230d..0000000000000000000000000000000000000000
--- a/conversations/conv_004762.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2404-141242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2404-141242.flac |",
-      "real_speaker_id": "2404",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-136861.flac |",
-      "real_speaker_id": "1271",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2404-141242.flac |",
-      "real_speaker_id": "2404",
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-    {
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-      "position_frames": 0
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-    {
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-      "utterance_id": "6099-67860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-67860.flac |",
-      "real_speaker_id": "6099",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.58502218927115,
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-  "foreground_events": [
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-      "event_class": "cough",
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-      "speaker_id": "2404"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004763.json b/conversations/conv_004763.json
deleted file mode 100644
index 039e07a4d4e7bacd8d57b46e92998fa1b90391c3..0000000000000000000000000000000000000000
--- a/conversations/conv_004763.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144986.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.15789779566252,
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-      "duration": 0.8421022043374791,
-      "start_frame": 498526,
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-      "utterance_id": "5985-300225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-300225.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 100713
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
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-      "speaker_id": "2688"
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-      "event_class": "cough",
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-      "speaker_id": "5985"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004774.json b/conversations/conv_004774.json
deleted file mode 100644
index 88fc2be8094eb1f3041279a9ae9cfe2765c279e4..0000000000000000000000000000000000000000
--- a/conversations/conv_004774.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.9395353469597136,
-      "duration": 3.9395353469597136,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.327353111078315,
-      "end_time": 8.24816530572624,
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-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-163402.flac |",
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-      "real_speaker_id": "2532",
-      "position_frames": 0
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-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-163402.flac |",
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-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004778.json b/conversations/conv_004778.json
deleted file mode 100644
index 1f223057825d9b6c35eddf2aaf6236cb2424dd45..0000000000000000000000000000000000000000
--- a/conversations/conv_004778.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.47581078281061,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 0
-    },
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-      "start_time": 4.306644307729629,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-26876.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "7495-252342",
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-      "real_speaker_id": "7495",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-26876.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 48430
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "3927-6557",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6557.flac |",
-      "real_speaker_id": "3927",
-      "position_frames": 67790
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6370/laugh/0022.wav",
-      "duration": 1.08,
-      "start_time": 0,
-      "speaker_id": "6370"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6370/laugh/0006.wav",
-      "duration": 0.8,
-      "start_time": 13.94482904041446,
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004781.json b/conversations/conv_004781.json
deleted file mode 100644
index 5dd509e1d465f075a00ac767ffe7becb4617bd3f..0000000000000000000000000000000000000000
--- a/conversations/conv_004781.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.625552669999585,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "5189-56574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-56574.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5189-56574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-56574.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5906",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3319/laugh/0027.wav",
-      "duration": 0.92,
-      "start_time": 4.455534013136799,
-      "speaker_id": "3319"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5906/cough/0121.wav",
-      "duration": 0.8442589648896015,
-      "start_time": 22.109328147482007,
-      "speaker_id": "5906"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5189/laugh/0100.wav",
-      "duration": 0.5576847126507936,
-      "start_time": 31.442315287349206,
-      "speaker_id": "5189"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004797.json b/conversations/conv_004797.json
deleted file mode 100644
index 92a834375eefe04556b47f9f92b3f2d3d8271329..0000000000000000000000000000000000000000
--- a/conversations/conv_004797.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.1464644308851986,
-      "duration": 3.1464644308851986,
-      "start_frame": 0,
-      "duration_frames": 50343,
-      "overlap": false,
-      "utterance_id": "5060-15563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15563.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.1189784747659175,
-      "end_time": 8.325459163154104,
-      "duration": 4.2064806883881865,
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-      "duration_frames": 67303,
-      "overlap": false,
-      "utterance_id": "1034-121119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.450975357832117,
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-      "overlap": false,
-      "utterance_id": "7338-81521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-81521.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.920701098510804,
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-      "duration": 4.971784679134589,
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-      "duration_frames": 79548,
-      "overlap": false,
-      "utterance_id": "1034-121119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
-      "position_frames": 67303
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.76559888655769,
-      "end_time": 22.6211678435994,
-      "duration": 3.855568957041712,
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-      "utterance_id": "7338-92154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92154.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.049181214632394,
-      "end_time": 26.786465630719647,
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-      "start_frame": 368786,
-      "duration_frames": 59796,
-      "overlap": false,
-      "utterance_id": "1034-121119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
-      "position_frames": 146851
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.446612099034454,
-      "end_time": 32.0,
-      "duration": 4.5533879009655465,
-      "start_frame": 439145,
-      "duration_frames": 72854,
-      "overlap": false,
-      "utterance_id": "5060-15562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1034/laugh/0037.wav",
-      "duration": 1.54,
-      "start_time": 8.614830770957932,
-      "speaker_id": "1034"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7338/cough/0078.wav",
-      "duration": 1.2,
-      "start_time": 8.768472288300936,
-      "speaker_id": "7338"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1034/laugh/0075.wav",
-      "duration": 1.1508367048158996,
-      "start_time": 11.534879253633575,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7338/cough/0095.wav",
-      "duration": 0.45520532885128195,
-      "start_time": 18.18693960642752,
-      "speaker_id": "7338"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004806.json b/conversations/conv_004806.json
deleted file mode 100644
index 8d21c3bdd4f449731fb5add35a1e1de9aa3abeea..0000000000000000000000000000000000000000
--- a/conversations/conv_004806.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "duration": 3.748811336589929,
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-      "overlap": false,
-      "utterance_id": "3125-163698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-163698.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.977622897545995,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296085.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
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-      "utterance_id": "8044-84190",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84190.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.686825198285685,
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-      "utterance_id": "3125-163698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-163698.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 59980
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.04287023173957,
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-      "utterance_id": "8044-84206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84206.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.180476385406756,
-      "end_time": 32.0,
-      "duration": 1.819523614593244,
-      "start_frame": 482887,
-      "duration_frames": 29112,
-      "overlap": false,
-      "utterance_id": "3125-132586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8044/laugh/0000.wav",
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-      "start_time": 18.21805446684274,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3125/cough/0016.wav",
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-      "start_time": 30.799424261620494,
-      "speaker_id": "3125"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004810.json b/conversations/conv_004810.json
deleted file mode 100644
index d979da4b160640323f8bf3f069da6bc6df641f28..0000000000000000000000000000000000000000
--- a/conversations/conv_004810.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.698314522235165,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4511-76322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4511-76322.flac |",
-      "real_speaker_id": "4511",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "4511-45512",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4511-76322.flac |",
-      "real_speaker_id": "4511",
-      "position_frames": 58201
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.17012256040617,
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-      "real_speaker_id": "1681",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.788799940772222,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 94586
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
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-      "start_time": 0,
-      "speaker_id": "4511"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004821.json b/conversations/conv_004821.json
deleted file mode 100644
index 976e94d4ea7cb833a0949928df2d45815066239a..0000000000000000000000000000000000000000
--- a/conversations/conv_004821.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.994591287241346,
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-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "2092",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7565-101281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
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-    {
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-      "real_speaker_id": "7565",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.153054849666532,
-      "end_time": 32.0,
-      "duration": 1.8469451503334682,
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-      "utterance_id": "2092-145709",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145709.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 107864
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
-      "duration": 0.6348979591836734,
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-  "paralinguistic_events": [
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-      "duration": 1.38,
-      "start_time": 5.00937118874538,
-      "speaker_id": "6323"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004826.json b/conversations/conv_004826.json
deleted file mode 100644
index f5e730e00f8b2918ba48dea09cfcc82703410b37..0000000000000000000000000000000000000000
--- a/conversations/conv_004826.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.065152724859516,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.753347850771728,
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-      "overlap": false,
-      "utterance_id": "6351-64714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.362515773062556,
-      "end_time": 10.10864417373418,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6119-48032.flac |",
-      "real_speaker_id": "6119",
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-      "speaker_id": 2,
-      "start_time": 10.414506408078353,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.984253626418859,
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-      "duration_frames": 82999,
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-      "utterance_id": "6119-48032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6119-48032.flac |",
-      "real_speaker_id": "6119",
-      "position_frames": 75938
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.617666411186907,
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-      "duration_frames": 89276,
-      "overlap": false,
-      "utterance_id": "6351-64714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 76053
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.939230014034173,
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-      "duration": 3.398367047249431,
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-      "overlap": false,
-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 63402
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.255535785515775,
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-      "duration_frames": 12953,
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-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 117775
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "7391"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004830.json b/conversations/conv_004830.json
deleted file mode 100644
index 2bba3bd06628c424cc4baa495ab3d445f557e85c..0000000000000000000000000000000000000000
--- a/conversations/conv_004830.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5337-37090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
-      "real_speaker_id": "5337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.685489802772635,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
-      "real_speaker_id": "5337",
-      "position_frames": 108317
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
-      "position_frames": 93882
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.1140878248611,
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-      "utterance_id": "5337-37090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
-      "real_speaker_id": "5337",
-      "position_frames": 164628
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.480776966282967,
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-      "duration": 4.519223033717033,
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-      "duration_frames": 72307,
-      "overlap": false,
-      "utterance_id": "6533-399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
-      "position_frames": 147392
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
-    {
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-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.22,
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-      "speaker_id": "6533"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004837.json b/conversations/conv_004837.json
deleted file mode 100644
index e2e083a3ac0a0d7cf90b2374df7f3fd15318ec26..0000000000000000000000000000000000000000
--- a/conversations/conv_004837.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "921-127933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127933.flac |",
-      "real_speaker_id": "921",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.852199190880785,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163692.flac |",
-      "real_speaker_id": "2553",
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-      "utterance_id": "2553-163728",
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-      "real_speaker_id": "2553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.439840053189528,
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-      "utterance_id": "921-127937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127937.flac |",
-      "real_speaker_id": "921",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.591518704469184,
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-      "utterance_id": "921-127933",
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-      "real_speaker_id": "921",
-      "position_frames": 65211
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 0.36288577509428777,
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/921/laugh/0082.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2553/laugh/0015.wav",
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-      "speaker_id": "2553"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004847.json b/conversations/conv_004847.json
deleted file mode 100644
index 9a1af20f4c6e22e71cae39a0f459496e96a8d31a..0000000000000000000000000000000000000000
--- a/conversations/conv_004847.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "5325-36587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-36587.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1239-139609.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5325",
-      "position_frames": 79237
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
-      "position_frames": 85734
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.1841557699203,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-36587.flac |",
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-      "position_frames": 183841
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-      "speaker_id": "708"
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-}
\ No newline at end of file
diff --git a/conversations/conv_004851.json b/conversations/conv_004851.json
deleted file mode 100644
index 00563ecae15a78640f561b5c171ce820608de242..0000000000000000000000000000000000000000
--- a/conversations/conv_004851.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7245-104886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104886.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.680843786296797,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-111961.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
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-      "utterance_id": "5719-233361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233361.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "5909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.19017441396662,
-      "end_time": 32.0,
-      "duration": 1.80982558603338,
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-      "overlap": false,
-      "utterance_id": "7245-104888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "duration": 1.0,
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-      "speaker_id": "7245"
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-    {
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-      "start_time": 30.84,
-      "speaker_id": "7245"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004860.json b/conversations/conv_004860.json
deleted file mode 100644
index a2a378f3e8062034a15d7f8679f1e122610f5afc..0000000000000000000000000000000000000000
--- a/conversations/conv_004860.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3448-5416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5416.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.764735144290688,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
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-      "overlap": true,
-      "utterance_id": "7879-274125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274125.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.13835511195403,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5416.flac |",
-      "real_speaker_id": "3448",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "6531",
-      "position_frames": 63643
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-      "segment_id": "seg0005",
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-      "utterance_id": "3448-5417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5417.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.705028794946458,
-      "end_time": 32.0,
-      "duration": 1.2949712050535425,
-      "start_frame": 491280,
-      "duration_frames": 20719,
-      "overlap": false,
-      "utterance_id": "6531-61334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
-      "position_frames": 147731
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
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-      "event_class": "cough",
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-      "duration": 1.24,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.34,
-      "start_time": 26.806837558601078,
-      "speaker_id": "6531"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004867.json b/conversations/conv_004867.json
deleted file mode 100644
index 4dab729312f4cf99b1274cb7e9c910aca0996e1b..0000000000000000000000000000000000000000
--- a/conversations/conv_004867.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3982-178459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-178459.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 0
-    },
-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 20.218978745754235,
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-      "real_speaker_id": "3982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.265378463954406,
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-      "overlap": true,
-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 86901
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.581927755045733,
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-      "duration": 1.418072244954267,
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-      "utterance_id": "1289-288043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288043.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 23.11927656134103
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_004871.json b/conversations/conv_004871.json
deleted file mode 100644
index bd5392d47b6f43f32a1777d7711153d3ace0c437..0000000000000000000000000000000000000000
--- a/conversations/conv_004871.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.17847162803282,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_004876.json b/conversations/conv_004876.json
deleted file mode 100644
index c15b65d0465b0783ecc8d666cc98629ed2127998..0000000000000000000000000000000000000000
--- a/conversations/conv_004876.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2092-145706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145706.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "position_frames": 53148
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-      "speaker_id": 0,
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-182396.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120330.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_004884.json b/conversations/conv_004884.json
deleted file mode 100644
index 4810778c81a0482feceb4a0abca87a211ed70835..0000000000000000000000000000000000000000
--- a/conversations/conv_004884.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/29-123027.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130871.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_004888.json b/conversations/conv_004888.json
deleted file mode 100644
index d9f6d33c1696feeec5a224bfb4538b9c896db722..0000000000000000000000000000000000000000
--- a/conversations/conv_004888.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6497-234106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234106.flac |",
-      "real_speaker_id": "6497",
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-    {
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_004892.json b/conversations/conv_004892.json
deleted file mode 100644
index bd888e5bb688cb0dd5947b1e55541712ae498692..0000000000000000000000000000000000000000
--- a/conversations/conv_004892.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4085-11517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11517.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7389-296084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-296084.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.773732346352485,
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-      "duration": 3.2685021856119585,
-      "start_frame": 252379,
-      "duration_frames": 52296,
-      "overlap": false,
-      "utterance_id": "3738-176683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176683.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.841680990005834,
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-      "duration": 5.739782629591603,
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-      "duration_frames": 91836,
-      "overlap": true,
-      "utterance_id": "7389-292563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-292563.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.9326266827226,
-      "end_time": 32.0,
-      "duration": 5.067373317277401,
-      "start_frame": 430922,
-      "duration_frames": 81077,
-      "overlap": false,
-      "utterance_id": "4085-11515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11515.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
-      "duration": 0.3546485260770975,
-      "start_time": 6.392033704826339
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3738/laugh/0130.wav",
-      "duration": 1.1009823361056927,
-      "start_time": 14.517264395978271,
-      "speaker_id": "3738"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004899.json b/conversations/conv_004899.json
deleted file mode 100644
index 806caa4ea37baa279f26515e1a96749ed9593bb0..0000000000000000000000000000000000000000
--- a/conversations/conv_004899.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.746280271505055,
-      "duration": 4.746280271505055,
-      "start_frame": 0,
-      "duration_frames": 75940,
-      "overlap": false,
-      "utterance_id": "2013-147610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147610.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.837848435417288,
-      "end_time": 9.44933653969462,
-      "duration": 4.611488104277332,
-      "start_frame": 77405,
-      "duration_frames": 73783,
-      "overlap": true,
-      "utterance_id": "2758-86040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86040.flac |",
-      "real_speaker_id": "2758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.234511494955676,
-      "end_time": 17.66445328424865,
-      "duration": 6.429941789292977,
-      "start_frame": 179752,
-      "duration_frames": 102879,
-      "overlap": false,
-      "utterance_id": "2013-147610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147610.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 75940
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.76414603668286,
-      "end_time": 23.685979710487082,
-      "duration": 4.9218336738042225,
-      "start_frame": 300226,
-      "duration_frames": 78749,
-      "overlap": false,
-      "utterance_id": "7314-77782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-77782.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.220167821716373,
-      "end_time": 28.64368348676251,
-      "duration": 4.423515665046136,
-      "start_frame": 387522,
-      "duration_frames": 70776,
-      "overlap": false,
-      "utterance_id": "2758-161217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-161217.flac |",
-      "real_speaker_id": "2758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.611792367000973,
-      "end_time": 32.0,
-      "duration": 2.388207632999027,
-      "start_frame": 473788,
-      "duration_frames": 38211,
-      "overlap": false,
-      "utterance_id": "2013-147610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147610.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 178819
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-      "start_time": 12.186057185583579
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-    {
-      "event_class": "Frying",
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-      "duration": 3.635585128887619,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/laugh/0150.wav",
-      "duration": 1.32,
-      "start_time": 4.8821176435359535,
-      "speaker_id": "2013"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2758/cough/0026.wav",
-      "duration": 1.046543504090924,
-      "start_time": 6.120934549545189,
-      "speaker_id": "2758"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/cough/0094.wav",
-      "duration": 1.0464376042749377,
-      "start_time": 10.005576449189268,
-      "speaker_id": "2013"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7314/cough/0063.wav",
-      "duration": 1.2753283835976719,
-      "start_time": 17.343173753431433,
-      "speaker_id": "7314"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2758/cough/0002.wav",
-      "duration": 0.5608484152724997,
-      "start_time": 28.790448877802604,
-      "speaker_id": "2758"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/laugh/0059.wav",
-      "duration": 1.76,
-      "start_time": 29.8722295591705,
-      "speaker_id": "2013"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004902.json b/conversations/conv_004902.json
deleted file mode 100644
index 0b3f622e9984789e707b3f670f15cbfa272d113a..0000000000000000000000000000000000000000
--- a/conversations/conv_004902.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.984046156017612,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.441663149226524,
-      "duration": 5.441663149226524,
-      "start_frame": 0,
-      "duration_frames": 87066,
-      "overlap": false,
-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.127562872271362,
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-      "duration": 6.080895220224599,
-      "start_frame": 82041,
-      "duration_frames": 97294,
-      "overlap": true,
-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.39758706363131,
-      "end_time": 17.942752603649044,
-      "duration": 5.545165540017734,
-      "start_frame": 198361,
-      "duration_frames": 88722,
-      "overlap": false,
-      "utterance_id": "778-126734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
-      "real_speaker_id": "778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.632720306418552,
-      "end_time": 25.18161211124965,
-      "duration": 6.548891804831097,
-      "start_frame": 298123,
-      "duration_frames": 104782,
-      "overlap": false,
-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.97782126344997,
-      "end_time": 31.984046156017612,
-      "duration": 6.006224892567642,
-      "start_frame": 415645,
-      "duration_frames": 96099,
-      "overlap": false,
-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 104782
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
-      "duration": 2.188775510204082,
-      "start_time": 28.598566408623746
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7647/laugh/0006.wav",
-      "duration": 1.28,
-      "start_time": 5.504223190446783,
-      "speaker_id": "7647"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8718/laugh/0050.wav",
-      "duration": 0.806478571569458,
-      "start_time": 31.193521428430543,
-      "speaker_id": "8718"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004914.json b/conversations/conv_004914.json
deleted file mode 100644
index 2c856fa9e9860d4cd61ef9e6061fdc3d228c606f..0000000000000000000000000000000000000000
--- a/conversations/conv_004914.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.278922735116118,
-      "duration": 5.278922735116118,
-      "start_frame": 0,
-      "duration_frames": 84462,
-      "overlap": false,
-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.057189832382467,
-      "end_time": 12.45090744132959,
-      "duration": 6.393717608947123,
-      "start_frame": 96915,
-      "duration_frames": 102299,
-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.03364458342476,
-      "end_time": 19.37619919730073,
-      "duration": 6.34255461387597,
-      "start_frame": 208538,
-      "duration_frames": 101480,
-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 102299
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.597173227175148,
-      "end_time": 23.53477430961064,
-      "duration": 3.937601082435494,
-      "start_frame": 313554,
-      "duration_frames": 63001,
-      "overlap": false,
-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 84462
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.600831608261494,
-      "end_time": 30.870643385119244,
-      "duration": 6.26981177685775,
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-      "duration_frames": 100316,
-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 203779
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.23663516915225,
-      "end_time": 32.0,
-      "duration": 0.763364830847749,
-      "start_frame": 499786,
-      "duration_frames": 12213,
-      "overlap": false,
-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 147463
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 2.2330385487528344,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/laugh/0017.wav",
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-      "start_time": 5.176924566075631,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/cough/0021.wav",
-      "duration": 1.02,
-      "start_time": 10.834538272581941,
-      "speaker_id": "2741"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/laugh/0083.wav",
-      "duration": 1.48,
-      "start_time": 19.56878143825306,
-      "speaker_id": "2741"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7316/laugh/0015.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "7316"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004918.json b/conversations/conv_004918.json
deleted file mode 100644
index b3e3fc62d54cc4dc4c2498c20ae93144db53fe93..0000000000000000000000000000000000000000
--- a/conversations/conv_004918.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.857069393202063,
-      "duration": 3.857069393202063,
-      "start_frame": 0,
-      "duration_frames": 61713,
-      "overlap": false,
-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.9362026043480665,
-      "end_time": 8.340928062191601,
-      "duration": 4.4047254578435355,
-      "start_frame": 62979,
-      "duration_frames": 70475,
-      "overlap": true,
-      "utterance_id": "6533-399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.003487956075528,
-      "end_time": 13.733121091805724,
-      "duration": 4.729633135730196,
-      "start_frame": 144055,
-      "duration_frames": 75674,
-      "overlap": false,
-      "utterance_id": "6082-56174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.06531675849849,
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-      "utterance_id": "6533-399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
-      "position_frames": 70475
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 61713
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
-      "position_frames": 152657
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 111867
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6082/cough/0068.wav",
-      "duration": 0.6803814820117786,
-      "start_time": 10.209896284945327,
-      "speaker_id": "6082"
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-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 30.852726068488032,
-      "speaker_id": "4513"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004919.json b/conversations/conv_004919.json
deleted file mode 100644
index 7e838c389405365501d6fc91e3e5425fc4b5b411..0000000000000000000000000000000000000000
--- a/conversations/conv_004919.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3090-164191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3090-164191.flac |",
-      "real_speaker_id": "3090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.261300374794881,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-96491.flac |",
-      "real_speaker_id": "7327",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "3168-173565",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173565.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.231671712810307,
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-      "duration": 3.7964646998797864,
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-      "utterance_id": "7327-93289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-93289.flac |",
-      "real_speaker_id": "7327",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.331773547887092,
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-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.595058239382332,
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-      "utterance_id": "7327-96491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-96491.flac |",
-      "real_speaker_id": "7327",
-      "position_frames": 77237
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004922.json b/conversations/conv_004922.json
deleted file mode 100644
index 35e049b817ab43658eb3f6f0b5fd95b5cbbf4e25..0000000000000000000000000000000000000000
--- a/conversations/conv_004922.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5894-64098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64098.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
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-      "real_speaker_id": "5894",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28894.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "start_time": 18.87661329662492,
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-      "overlap": false,
-      "utterance_id": "8108-274318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-274318.flac |",
-      "real_speaker_id": "8108",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.152570020382953,
-      "end_time": 26.79951104097339,
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-      "overlap": true,
-      "utterance_id": "4959-28894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28894.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 74168
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "8108-274318",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_004925.json b/conversations/conv_004925.json
deleted file mode 100644
index 335ad24316c066161ac5c2f95dde4af0df6dbd58..0000000000000000000000000000000000000000
--- a/conversations/conv_004925.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.585439454091032,
-      "duration": 6.585439454091032,
-      "start_frame": 0,
-      "duration_frames": 105367,
-      "overlap": false,
-      "utterance_id": "5649-40561",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40561.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.942689987490847,
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-      "duration_frames": 60910,
-      "overlap": true,
-      "utterance_id": "4297-13006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13006.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.889171846890967,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40561.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 105367
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "4660-25054",
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-      "real_speaker_id": "4660",
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-    {
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-      "real_speaker_id": "5649",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5649/cough/0050.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5649/laugh/0097.wav",
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-      "start_time": 30.6,
-      "speaker_id": "5649"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004933.json b/conversations/conv_004933.json
deleted file mode 100644
index b5333cbaf185322513f0eab1db8ec2eee56a7f12..0000000000000000000000000000000000000000
--- a/conversations/conv_004933.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.063121460480197,
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-      "utterance_id": "4771-6409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
-    },
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_004934.json b/conversations/conv_004934.json
deleted file mode 100644
index ea03ece36c17cc8f368f0c01e37a1f9fed7638c1..0000000000000000000000000000000000000000
--- a/conversations/conv_004934.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "4402-3068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3068.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 20.721365697193225,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_004938.json b/conversations/conv_004938.json
deleted file mode 100644
index 7638604a29cb9a1db71cf66f94e51c7291261197..0000000000000000000000000000000000000000
--- a/conversations/conv_004938.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.154425591784126,
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-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4876.flac |",
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-      "segment_id": "seg0004",
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-      "utterance_id": "925-8157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/925-8157.flac |",
-      "real_speaker_id": "925",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4868.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_004943.json b/conversations/conv_004943.json
deleted file mode 100644
index 64834a80a7952eb6d0aebd03e541a87f25ff2073..0000000000000000000000000000000000000000
--- a/conversations/conv_004943.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3699-47246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-47246.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3699",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/217-122443.flac |",
-      "real_speaker_id": "217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.068919807055266,
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-      "utterance_id": "3699-19401",
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-      "real_speaker_id": "3699",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/217-122443.flac |",
-      "real_speaker_id": "217",
-      "position_frames": 81657
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-    {
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-      "utterance_id": "3699-47246",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3699/laugh/0108.wav",
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-    {
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-      "start_time": 31.05461372277133,
-      "speaker_id": "3699"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004955.json b/conversations/conv_004955.json
deleted file mode 100644
index 6498b11f0f07e65aafd8bc5588eb7bd3aa99ac97..0000000000000000000000000000000000000000
--- a/conversations/conv_004955.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-158816.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
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-      "utterance_id": "8619-291384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291384.flac |",
-      "real_speaker_id": "8619",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.678641541479273,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "start_time": 0,
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-      "start_time": 21.14981239955724,
-      "speaker_id": "667"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8619/laugh/0030.wav",
-      "duration": 0.9207881659909906,
-      "start_time": 22.657904995329503,
-      "speaker_id": "8619"
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-    {
-      "event_class": "cough",
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-      "duration": 1.2117730408808625,
-      "start_time": 24.05886378820282,
-      "speaker_id": "8619"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004959.json b/conversations/conv_004959.json
deleted file mode 100644
index bc21055513ea9d699c86bbf08f5c1e2ac0dee622..0000000000000000000000000000000000000000
--- a/conversations/conv_004959.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3650-168646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168646.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.785128405323691,
-      "end_time": 9.749353089960021,
-      "duration": 4.964224684636329,
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-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.351721290228,
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-      "overlap": false,
-      "utterance_id": "3650-168646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168646.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 64225
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.793477022082765,
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-      "overlap": false,
-      "utterance_id": "7357-94126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.76370451922358,
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-      "utterance_id": "3650-168643",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168643.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.71232940296876,
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-      "duration": 5.287670597031241,
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-      "duration_frames": 84602,
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-      "utterance_id": "7357-94126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 60612
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
-      "duration": 2.0669614512471655,
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7357/laugh/0048.wav",
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-      "speaker_id": "7357"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004963.json b/conversations/conv_004963.json
deleted file mode 100644
index aec0e082540b5810bade00971c1cdbe504496b1d..0000000000000000000000000000000000000000
--- a/conversations/conv_004963.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.43004287298225,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2712-3534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3534.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.014099035362446,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
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-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.834144963186297,
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-      "utterance_id": "2712-3532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3532.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 57158
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.153679927436063,
-      "end_time": 31.43004287298225,
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-      "start_frame": 418458,
-      "duration_frames": 84421,
-      "overlap": false,
-      "utterance_id": "2712-3534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3534.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 60799
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2712/laugh/0066.wav",
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-      "start_time": 2.230496463343766,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2712/cough/0043.wav",
-      "duration": 0.359207792584402,
-      "start_time": 13.3726064907052,
-      "speaker_id": "2712"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/728/cough/0013.wav",
-      "duration": 1.24,
-      "start_time": 25.856215141547416,
-      "speaker_id": "728"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004964.json b/conversations/conv_004964.json
deleted file mode 100644
index 4bca964dcfa725c1479fda21ff7c0217b1d20650..0000000000000000000000000000000000000000
--- a/conversations/conv_004964.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.092071960929502,
-      "duration": 4.092071960929502,
-      "start_frame": 0,
-      "duration_frames": 65473,
-      "overlap": false,
-      "utterance_id": "8388-278289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-278289.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.219307788141049,
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-      "duration": 6.642088903795953,
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-      "duration_frames": 106273,
-      "overlap": false,
-      "utterance_id": "8445-281203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8445-281203.flac |",
-      "real_speaker_id": "8445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.498716214714477,
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-      "utterance_id": "8388-275212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-275212.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.470152962975753,
-      "end_time": 22.481395453959696,
-      "duration": 6.0112424909839435,
-      "start_frame": 263522,
-      "duration_frames": 96179,
-      "overlap": false,
-      "utterance_id": "8445-281202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8445-281202.flac |",
-      "real_speaker_id": "8445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8388-278289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-278289.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 65473
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 4.106326518068737,
-      "start_frame": 446298,
-      "duration_frames": 65701,
-      "overlap": false,
-      "utterance_id": "8388-278289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-278289.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 124198
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-      "event_class": "Frying",
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-      "duration": 1.2779074431808701,
-      "start_time": 6.73434043894978
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_004972.json b/conversations/conv_004972.json
deleted file mode 100644
index fc95f6405455fdc8a3c6bad8027a5f2feebce528..0000000000000000000000000000000000000000
--- a/conversations/conv_004972.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "4706"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004975.json b/conversations/conv_004975.json
deleted file mode 100644
index b60a3b2a93144521969d116188d6a74c3da5ae03..0000000000000000000000000000000000000000
--- a/conversations/conv_004975.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246984.flac |",
-      "real_speaker_id": "8778",
-      "position_frames": 0
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-      "real_speaker_id": "7949",
-      "position_frames": 137190
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_004979.json b/conversations/conv_004979.json
deleted file mode 100644
index fd7ed29632dc24d57b2336ef0dd8263696d04998..0000000000000000000000000000000000000000
--- a/conversations/conv_004979.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_004980.json b/conversations/conv_004980.json
deleted file mode 100644
index 463d1a9886a2baeff649f965528cd5c58de5f253..0000000000000000000000000000000000000000
--- a/conversations/conv_004980.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "real_speaker_id": "7717",
-      "position_frames": 50246
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5653/laugh/0078.wav",
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-      "start_time": 0,
-      "speaker_id": "5653"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5653/cough/0116.wav",
-      "duration": 1.2065533866855513,
-      "start_time": 0,
-      "speaker_id": "5653"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "speaker_id": "7717"
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-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 24.675827815387766,
-      "speaker_id": "5653"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2201/laugh/0022.wav",
-      "duration": 0.8394908400402269,
-      "start_time": 28.84752898945761,
-      "speaker_id": "2201"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7717/laugh/0046.wav",
-      "duration": 0.98,
-      "start_time": 30.418572590710518,
-      "speaker_id": "7717"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7717/cough/0086.wav",
-      "duration": 0.7865316783776124,
-      "start_time": 29.10923845277825,
-      "speaker_id": "7717"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_004996.json b/conversations/conv_004996.json
deleted file mode 100644
index 07184e9cd57233b2e817d4a84b656f541292fb71..0000000000000000000000000000000000000000
--- a/conversations/conv_004996.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.861768280707832,
-      "duration": 5.861768280707832,
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-      "duration_frames": 93788,
-      "overlap": false,
-      "utterance_id": "7095-88484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88484.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.18684080357864,
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-      "duration": 3.9288801317104207,
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-      "overlap": false,
-      "utterance_id": "409-124990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/409-124990.flac |",
-      "real_speaker_id": "409",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.538538762832209,
-      "end_time": 16.33515862080247,
-      "duration": 5.796619857970261,
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-      "duration_frames": 92745,
-      "overlap": false,
-      "utterance_id": "7120-76055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.85889406497044,
-      "end_time": 21.926329588678676,
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-      "duration_frames": 81078,
-      "overlap": false,
-      "utterance_id": "409-124990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/409-124990.flac |",
-      "real_speaker_id": "409",
-      "position_frames": 62862
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.681803052318056,
-      "end_time": 27.16798252225826,
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-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.697608194637823,
-      "end_time": 32.0,
-      "duration": 4.302391805362177,
-      "start_frame": 443161,
-      "duration_frames": 68838,
-      "overlap": false,
-      "utterance_id": "409-124990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/409-124990.flac |",
-      "real_speaker_id": "409",
-      "position_frames": 143940
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7095/cough/0055.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/409/laugh/0060.wav",
-      "duration": 0.7881681164958381,
-      "start_time": 22.016775051645983,
-      "speaker_id": "409"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005000.json b/conversations/conv_005000.json
deleted file mode 100644
index 27a10736c590f06a621be9b4ee6278dd44572a80..0000000000000000000000000000000000000000
--- a/conversations/conv_005000.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1970-10594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-10594.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "7051-259009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
-      "real_speaker_id": "7051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.561471060504232,
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-      "overlap": false,
-      "utterance_id": "1970-10594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-10594.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 96674
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.484600797113888,
-      "end_time": 20.776127892593117,
-      "duration": 4.291527095479229,
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-      "utterance_id": "7051-259009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
-      "real_speaker_id": "7051",
-      "position_frames": 49833
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.94456630047089,
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-      "duration": 5.436949174822202,
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-      "utterance_id": "7051-259009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
-      "real_speaker_id": "7051",
-      "position_frames": 118497
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.539156232589534,
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-      "duration": 3.4608437674104664,
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-      "utterance_id": "1970-10594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-10594.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 181001
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005016.json b/conversations/conv_005016.json
deleted file mode 100644
index 1b1213f34b24dccea5d8cfee1501d71a6dfa6bc3..0000000000000000000000000000000000000000
--- a/conversations/conv_005016.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1757-128127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128127.flac |",
-      "real_speaker_id": "1757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-122798.flac |",
-      "real_speaker_id": "215",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.634553696066664,
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-      "overlap": false,
-      "utterance_id": "5401-39508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39508.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.438755720400614,
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-      "overlap": false,
-      "utterance_id": "215-127369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-127369.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.1669613918013,
-      "end_time": 29.14989203979475,
-      "duration": 3.982930647993448,
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-      "duration_frames": 63726,
-      "overlap": false,
-      "utterance_id": "1757-128103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128103.flac |",
-      "real_speaker_id": "1757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.84567903400297,
-      "end_time": 32.0,
-      "duration": 2.15432096599703,
-      "start_frame": 477530,
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-      "overlap": false,
-      "utterance_id": "5401-39515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39515.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_005020.json b/conversations/conv_005020.json
deleted file mode 100644
index b3d61532e73093d8f09916e83cc1ecb71be5c5a8..0000000000000000000000000000000000000000
--- a/conversations/conv_005020.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.9406286971576954,
-      "duration": 3.9406286971576954,
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-      "utterance_id": "331-132019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-132019.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.253672891096807,
-      "end_time": 9.44556096837985,
-      "duration": 5.191888077283043,
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-      "utterance_id": "551-132996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-132996.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "5756-305214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-305214.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-132019.flac |",
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/331/laugh/0000.wav",
-      "duration": 1.1,
-      "start_time": 1.7529672986632514,
-      "speaker_id": "331"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/551/laugh/0146.wav",
-      "duration": 1.5,
-      "start_time": 5.086514423238979,
-      "speaker_id": "551"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/551/laugh/0087.wav",
-      "duration": 1.2,
-      "start_time": 25.543911145358763,
-      "speaker_id": "551"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005036.json b/conversations/conv_005036.json
deleted file mode 100644
index 9ce3957577244732f987c47c7eade89ea7204c2d..0000000000000000000000000000000000000000
--- a/conversations/conv_005036.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.995470347509974,
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-      "overlap": false,
-      "utterance_id": "1246-135815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-135815.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.4759796113800165,
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-      "duration": 4.233122037641151,
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-      "utterance_id": "1776-142744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1776-142744.flac |",
-      "real_speaker_id": "1776",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.325204688525622,
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-      "utterance_id": "1246-124550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-124550.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.61815844531071,
-      "end_time": 21.29412329355536,
-      "duration": 4.675964848244652,
-      "start_frame": 265890,
-      "duration_frames": 74815,
-      "overlap": false,
-      "utterance_id": "4926-23311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23311.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.86357798993986,
-      "end_time": 25.46997273758528,
-      "duration": 3.6063947476454206,
-      "start_frame": 349817,
-      "duration_frames": 57702,
-      "overlap": true,
-      "utterance_id": "4926-23311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23311.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 74815
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.658247370153028,
-      "end_time": 32.0,
-      "duration": 5.341752629846972,
-      "start_frame": 426531,
-      "duration_frames": 85468,
-      "overlap": false,
-      "utterance_id": "1776-139035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1776-139035.flac |",
-      "real_speaker_id": "1776",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-      "duration": 1.2845118348915716,
-      "start_time": 25.314047077623453
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_005037.json b/conversations/conv_005037.json
deleted file mode 100644
index ba75da0e398082afd3eba35900d7b91b8b3c6ed6..0000000000000000000000000000000000000000
--- a/conversations/conv_005037.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7502-100426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100426.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.877769695571296,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-49594.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.168367208725758,
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-      "overlap": false,
-      "utterance_id": "7502-100425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100425.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.757017936869694,
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-      "duration_frames": 90930,
-      "overlap": false,
-      "utterance_id": "7502-100426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100426.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 100883
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.910941209270984,
-      "end_time": 29.048478122379507,
-      "duration": 5.137536913108522,
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-      "duration_frames": 82200,
-      "overlap": false,
-      "utterance_id": "5796-66357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-66357.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.240588193693746,
-      "end_time": 32.0,
-      "duration": 1.7594118063062538,
-      "start_frame": 483849,
-      "duration_frames": 28150,
-      "overlap": false,
-      "utterance_id": "480-127525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-127525.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5796/laugh/0088.wav",
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-      "duration": 0.3104734598223263,
-      "start_time": 6.500940813398348,
-      "speaker_id": "5796"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005041.json b/conversations/conv_005041.json
deleted file mode 100644
index ee961057f4b7221d84eacb44785e2f8e6b0bb3d0..0000000000000000000000000000000000000000
--- a/conversations/conv_005041.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.83706267291937,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2140-160867",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-160867.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.988447689847877,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.69815062273812,
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-      "duration": 3.600998550351634,
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-      "duration_frames": 57615,
-      "overlap": false,
-      "utterance_id": "27-124992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-124992.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.129785912606774,
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-      "duration_frames": 91031,
-      "overlap": true,
-      "utterance_id": "2140-17255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-17255.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.84326520565897,
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-      "duration_frames": 67411,
-      "overlap": true,
-      "utterance_id": "27-124992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-124992.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 57615
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.57137209882844,
-      "end_time": 31.83706267291937,
-      "duration": 6.26569057409093,
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-      "duration_frames": 100251,
-      "overlap": false,
-      "utterance_id": "2140-17255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-17255.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 91031
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/27/laugh/0096.wav",
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-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2140/cough/0060.wav",
-      "duration": 1.32,
-      "start_time": 17.092649499963763,
-      "speaker_id": "2140"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/27/cough/0002.wav",
-      "duration": 1.1200026952995181,
-      "start_time": 21.58151539450882,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2140/laugh/0090.wav",
-      "duration": 0.7157364644948478,
-      "start_time": 31.28426353550515,
-      "speaker_id": "2140"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005057.json b/conversations/conv_005057.json
deleted file mode 100644
index 1d11ccbb8c007e900833d83b0471ff2043b6cc2d..0000000000000000000000000000000000000000
--- a/conversations/conv_005057.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 0
-    },
-    {
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-    {
-      "segment_id": "seg0002",
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-    {
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-      "real_speaker_id": "1152",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35453.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_005060.json b/conversations/conv_005060.json
deleted file mode 100644
index 4ca66515580bcbd558504bf8293423b8383b8361..0000000000000000000000000000000000000000
--- a/conversations/conv_005060.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.71076563678877,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-285242.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5665-38051.flac |",
-      "real_speaker_id": "5665",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 14.839194603651194,
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-      "utterance_id": "8447-285242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-285242.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 77958
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.535416279465565,
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-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.320799006239717,
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-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_005061.json b/conversations/conv_005061.json
deleted file mode 100644
index 2b3fc4c4148d86235b57653b70f6ebb17420899e..0000000000000000000000000000000000000000
--- a/conversations/conv_005061.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123857.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138113.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123857.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 88988
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2204-131732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
-      "real_speaker_id": "2204",
-      "position_frames": 77448
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1336-138115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138115.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005077.json b/conversations/conv_005077.json
deleted file mode 100644
index 079d5c1d7ffdd3910ad1169346ac6df6959c362d..0000000000000000000000000000000000000000
--- a/conversations/conv_005077.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8389-120181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8389-120181.flac |",
-      "real_speaker_id": "8389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.272254270046567,
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-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 75950
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.143640184994167,
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-      "duration_frames": 57620,
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-      "utterance_id": "8389-120181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8389-120181.flac |",
-      "real_speaker_id": "8389",
-      "position_frames": 75699
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
-      "real_speaker_id": "3009",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7816-108620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108620.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3009/laugh/0053.wav",
-      "duration": 1.28,
-      "start_time": 30.58403026568824,
-      "speaker_id": "3009"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005082.json b/conversations/conv_005082.json
deleted file mode 100644
index 680a9930475bf276dbe5c4121764f8ede659f8b7..0000000000000000000000000000000000000000
--- a/conversations/conv_005082.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.22477624134872,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "909-131044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131044.flac |",
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-    {
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-      "real_speaker_id": "4520",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "4520",
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005094.json b/conversations/conv_005094.json
deleted file mode 100644
index d9522b4cef6afb816fa6c4ae69cb7a61ecc55ddd..0000000000000000000000000000000000000000
--- a/conversations/conv_005094.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
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-      "real_speaker_id": "5781",
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-      "real_speaker_id": "6236",
-      "position_frames": 74392
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172162.flac |",
-      "real_speaker_id": "3436",
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-  ],
-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_005098.json b/conversations/conv_005098.json
deleted file mode 100644
index 6f744ccf54307c552a970fc9adaf0f8322fa49ba..0000000000000000000000000000000000000000
--- a/conversations/conv_005098.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "8536",
-      "position_frames": 81143
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7654",
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-    {
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-      "utterance_id": "6111-59779",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6111-59779.flac |",
-      "real_speaker_id": "6111",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005104.json b/conversations/conv_005104.json
deleted file mode 100644
index 2149c189e5d44650180f653872797e4ef85c5258..0000000000000000000000000000000000000000
--- a/conversations/conv_005104.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5506-69895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69895.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-160958.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-61313.flac |",
-      "real_speaker_id": "6184",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 20.295893491966325,
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-      "real_speaker_id": "2775",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "position_frames": 85873
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6184-61313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-61313.flac |",
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-      "position_frames": 166369
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_005108.json b/conversations/conv_005108.json
deleted file mode 100644
index 623bf01c2ab8e91f923c5d1b5cb37c45a95f4114..0000000000000000000000000000000000000000
--- a/conversations/conv_005108.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20048.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20048.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 97058
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-      "utterance_id": "4930-20048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20048.flac |",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.606121103964643,
-      "end_time": 32.0,
-      "duration": 1.393878896035357,
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-      "utterance_id": "2854-51657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51657.flac |",
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-  "background_events": [
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-      "speaker_id": "2854"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_005112.json b/conversations/conv_005112.json
deleted file mode 100644
index ce0e954fa8a6db56b3cc850b21f9b97a5288fd66..0000000000000000000000000000000000000000
--- a/conversations/conv_005112.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.598121946718656,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3541-174236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174236.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 0
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-      "start_time": 8.452569349898164,
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-      "utterance_id": "3541-174244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174244.flac |",
-      "real_speaker_id": "3541",
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-      "speaker_id": 1,
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-      "utterance_id": "3630-24758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-24758.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.10241459779527,
-      "end_time": 27.759948373738318,
-      "duration": 3.6575337759430457,
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-      "utterance_id": "3541-174244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174244.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 72731
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005119.json b/conversations/conv_005119.json
deleted file mode 100644
index 3c895c5da3ce20f50c97e4e32b2f11bcffb9a2d4..0000000000000000000000000000000000000000
--- a/conversations/conv_005119.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
-      "real_speaker_id": "7125",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
-      "real_speaker_id": "7125",
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-      "real_speaker_id": "4595",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
-      "real_speaker_id": "7125",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66983.flac |",
-      "real_speaker_id": "6407",
-      "position_frames": 84533
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.603106984948127,
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-  "foreground_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005124.json b/conversations/conv_005124.json
deleted file mode 100644
index 896a6ce8eb21ee37aaf09d8a04ef6f4c1d82ef75..0000000000000000000000000000000000000000
--- a/conversations/conv_005124.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99457139633422,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "duration": 6.319534482475197,
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-      "overlap": false,
-      "utterance_id": "8302-281331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281331.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291944.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.590036569254643,
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-      "utterance_id": "8302-282524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-282524.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.434103133855142,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-73705.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2920-156230",
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-      "real_speaker_id": "2920",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156224.flac |",
-      "real_speaker_id": "2920",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7138/cough/0016.wav",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005125.json b/conversations/conv_005125.json
deleted file mode 100644
index 90dcd4b684cc4d85beae346418776627cb869af1..0000000000000000000000000000000000000000
--- a/conversations/conv_005125.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.158963711050987,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.7944255809743717,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-6379.flac |",
-      "real_speaker_id": "1578",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-120342.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_005128.json b/conversations/conv_005128.json
deleted file mode 100644
index 15eb95a9dcd99cdbda4a38a5994e8dbe861fad5e..0000000000000000000000000000000000000000
--- a/conversations/conv_005128.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "205-159056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-159056.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.175260729421055,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_005132.json b/conversations/conv_005132.json
deleted file mode 100644
index 7671b2cb968d7fd0bb879befb802e8a9efbb834c..0000000000000000000000000000000000000000
--- a/conversations/conv_005132.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
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-      "position_frames": 75392
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5854-50960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-50960.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005145.json b/conversations/conv_005145.json
deleted file mode 100644
index ab50a4fd6f8306c1539dd04f38bf3e41be07b53f..0000000000000000000000000000000000000000
--- a/conversations/conv_005145.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "start_time": 7.864797758274763,
-      "speaker_id": "6377"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005149.json b/conversations/conv_005149.json
deleted file mode 100644
index f284c89c61151f4e55eb0eab6b8a2fe7f6741c2c..0000000000000000000000000000000000000000
--- a/conversations/conv_005149.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5474296849109024,
-      "duration": 3.5474296849109024,
-      "start_frame": 0,
-      "duration_frames": 56758,
-      "overlap": false,
-      "utterance_id": "2730-154437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154437.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.490622910295592,
-      "end_time": 9.830395063064074,
-      "duration": 5.339772152768483,
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-      "utterance_id": "3816-11258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-11258.flac |",
-      "real_speaker_id": "3816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.512416104662062,
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-      "duration": 6.0265147447999965,
-      "start_frame": 168198,
-      "duration_frames": 96424,
-      "overlap": false,
-      "utterance_id": "3816-290923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-290923.flac |",
-      "real_speaker_id": "3816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.829553449427088,
-      "end_time": 21.9942244388511,
-      "duration": 5.1646709894240095,
-      "start_frame": 269272,
-      "duration_frames": 82634,
-      "overlap": false,
-      "utterance_id": "2730-154437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154437.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 56758
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.43476830989295,
-      "end_time": 29.004423811870538,
-      "duration": 6.569655501977588,
-      "start_frame": 358956,
-      "duration_frames": 105114,
-      "overlap": true,
-      "utterance_id": "3816-290923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-290923.flac |",
-      "real_speaker_id": "3816",
-      "position_frames": 96424
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.42304091524968,
-      "end_time": 32.0,
-      "duration": 1.576959084750321,
-      "start_frame": 486768,
-      "duration_frames": 25231,
-      "overlap": false,
-      "utterance_id": "7946-116281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-116281.flac |",
-      "real_speaker_id": "7946",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
-      "duration": 15.55204081632653,
-      "start_time": 4.095431269949156
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.4885252424770883,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_4.wav",
-      "duration": 0.31639455782312925,
-      "start_time": 27.155434515433118
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2730/laugh/0055.wav",
-      "duration": 0.8,
-      "start_time": 0,
-      "speaker_id": "2730"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2730/laugh/0098.wav",
-      "duration": 0.7475158975721721,
-      "start_time": 22.051839731229432,
-      "speaker_id": "2730"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005153.json b/conversations/conv_005153.json
deleted file mode 100644
index 112ef32fd16a2e04a2d34f4fc043868e0498fd45..0000000000000000000000000000000000000000
--- a/conversations/conv_005153.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.835901405302405,
-      "duration": 6.835901405302405,
-      "start_frame": 0,
-      "duration_frames": 109374,
-      "overlap": false,
-      "utterance_id": "4455-18532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-18532.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.465825355796158,
-      "end_time": 14.245294761522848,
-      "duration": 6.77946940572669,
-      "start_frame": 119453,
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-      "overlap": false,
-      "utterance_id": "4455-14896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-14896.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.38845613670564,
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-      "overlap": false,
-      "utterance_id": "8259-276913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276913.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.243091456118556,
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-      "duration": 4.17442924687071,
-      "start_frame": 323889,
-      "duration_frames": 66790,
-      "overlap": false,
-      "utterance_id": "8259-276913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276913.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 82188
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.62205273519229,
-      "end_time": 30.33031938223604,
-      "duration": 5.708266647043748,
-      "start_frame": 393952,
-      "duration_frames": 91332,
-      "overlap": false,
-      "utterance_id": "4455-18532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-18532.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 109374
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.07010443784213,
-      "end_time": 32.0,
-      "duration": 0.9298955621578706,
-      "start_frame": 497121,
-      "duration_frames": 14878,
-      "overlap": false,
-      "utterance_id": "2854-51657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51657.flac |",
-      "real_speaker_id": "2854",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 7.768989209327327
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
-      "duration": 1.1371227613830417,
-      "start_time": 18.31551332440081
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.9208462667513424,
-      "start_time": 21.466071798382185
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4455/laugh/0104.wav",
-      "duration": 1.8232795086197402,
-      "start_time": 6.933108434976604,
-      "speaker_id": "4455"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4455/laugh/0140.wav",
-      "duration": 1.16,
-      "start_time": 6.08624527917562,
-      "speaker_id": "4455"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8259/laugh/0003.wav",
-      "duration": 1.44,
-      "start_time": 21.735013471345077,
-      "speaker_id": "8259"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005158.json b/conversations/conv_005158.json
deleted file mode 100644
index 1178a9ef67bef692de04585b14057dc5c8650489..0000000000000000000000000000000000000000
--- a/conversations/conv_005158.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.229587239411897,
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-      "start_frame": 0,
-      "duration_frames": 67673,
-      "overlap": false,
-      "utterance_id": "196-122150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122150.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.030482020704683,
-      "end_time": 9.280851716103438,
-      "duration": 4.2503696953987555,
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-      "duration_frames": 68005,
-      "overlap": false,
-      "utterance_id": "196-122152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122152.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.802627647830773,
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-      "duration_frames": 58518,
-      "overlap": false,
-      "utterance_id": "196-122150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122150.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 67673
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.597686108562197,
-      "end_time": 16.936737544447517,
-      "duration": 3.339051435885321,
-      "start_frame": 217562,
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-      "overlap": true,
-      "utterance_id": "4535-279856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279856.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.79536030132627,
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-      "overlap": false,
-      "utterance_id": "196-122159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122159.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.162398936100132,
-      "end_time": 28.764454049564364,
-      "duration": 5.602055113464234,
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-      "duration_frames": 89632,
-      "overlap": true,
-      "utterance_id": "4535-279852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279852.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.595163032287857,
-      "end_time": 32.0,
-      "duration": 2.404836967712143,
-      "start_frame": 473522,
-      "duration_frames": 38477,
-      "overlap": false,
-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
-      "duration": 1.7517687074829933,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
-      "duration": 0.3160770975056689,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/196/laugh/0010.wav",
-      "duration": 0.7346763486362826,
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-      "speaker_id": "196"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/196/cough/0084.wav",
-      "duration": 0.6431224833220179,
-      "start_time": 0,
-      "speaker_id": "196"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4535/laugh/0129.wav",
-      "duration": 1.04,
-      "start_time": 17.1353001505666,
-      "speaker_id": "4535"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/196/laugh/0095.wav",
-      "duration": 1.08,
-      "start_time": 16.56172074326215,
-      "speaker_id": "196"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005165.json b/conversations/conv_005165.json
deleted file mode 100644
index b317780c0b643ee9cf26aa878c88fc828e075ef4..0000000000000000000000000000000000000000
--- a/conversations/conv_005165.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.815123999795063,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.700284268587623,
-      "duration": 5.700284268587623,
-      "start_frame": 0,
-      "duration_frames": 91204,
-      "overlap": false,
-      "utterance_id": "5636-41795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41795.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.360948730069726,
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-      "duration_frames": 54677,
-      "overlap": false,
-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41792.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41792.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 74179
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
-      "duration": 1.2056734223843906,
-      "start_time": 8.055507312031326
-    },
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
-      "duration": 4.9733385558769045,
-      "start_time": 16.746527311331082
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_005169.json b/conversations/conv_005169.json
deleted file mode 100644
index e03f98e9538c108048f773e0c2fbcee8c31fc33e..0000000000000000000000000000000000000000
--- a/conversations/conv_005169.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.562376004020797,
-      "duration": 6.562376004020797,
-      "start_frame": 0,
-      "duration_frames": 104998,
-      "overlap": false,
-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.596321819279898,
-      "end_time": 13.075643940957168,
-      "duration": 5.479322121677269,
-      "start_frame": 121541,
-      "duration_frames": 87669,
-      "overlap": false,
-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.092526956374588,
-      "end_time": 17.804133185959362,
-      "duration": 3.711606229584773,
-      "start_frame": 225480,
-      "duration_frames": 59385,
-      "overlap": false,
-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.195009920684605,
-      "end_time": 24.121931535509002,
-      "duration": 5.926921614824398,
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-      "duration_frames": 94830,
-      "overlap": false,
-      "utterance_id": "8591-284445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284445.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.287162689918368,
-      "end_time": 28.44278625971226,
-      "duration": 5.155623569793893,
-      "start_frame": 372594,
-      "duration_frames": 82489,
-      "overlap": true,
-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 59385
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.111053931869563,
-      "end_time": 32.0,
-      "duration": 1.888946068130437,
-      "start_frame": 481776,
-      "duration_frames": 30223,
-      "overlap": false,
-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 104998
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
-      "duration": 19.061179138321997,
-      "start_time": 0.7446009559264563
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
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-      "start_time": 20.23501674147981
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7416/laugh/0065.wav",
-      "duration": 0.8242022853846468,
-      "start_time": 6.593577004835558,
-      "speaker_id": "7416"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1714/laugh/0076.wav",
-      "duration": 1.3895503599997285,
-      "start_time": 12.539482918051352,
-      "speaker_id": "1714"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005172.json b/conversations/conv_005172.json
deleted file mode 100644
index 144fbe1ea0a313f5d1bc1e39b504a16c8a3cc5d4..0000000000000000000000000000000000000000
--- a/conversations/conv_005172.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.059071184810133,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.0527753508924445,
-      "duration": 5.0527753508924445,
-      "start_frame": 0,
-      "duration_frames": 80844,
-      "overlap": false,
-      "utterance_id": "3380-64298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3380-64298.flac |",
-      "real_speaker_id": "3380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.9230971962512005,
-      "end_time": 12.385179315144658,
-      "duration": 6.4620821188934565,
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-      "overlap": false,
-      "utterance_id": "5339-14134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.773591994217213,
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-      "duration": 6.284458011980631,
-      "start_frame": 204377,
-      "duration_frames": 100551,
-      "overlap": false,
-      "utterance_id": "5339-14134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 103393
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.369469324141797,
-      "end_time": 26.733884296235686,
-      "duration": 6.364414972093892,
-      "start_frame": 325911,
-      "duration_frames": 101830,
-      "overlap": false,
-      "utterance_id": "3979-10701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.844126698155353,
-      "end_time": 31.059071184810133,
-      "duration": 4.21494448665478,
-      "start_frame": 429506,
-      "duration_frames": 67439,
-      "overlap": true,
-      "utterance_id": "5339-14133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14133.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 2.5262430923227313,
-      "start_time": 21.611848074878512
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
-      "duration": 0.27267573696145125,
-      "start_time": 11.48802876009297
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5339/cough/0046.wav",
-      "duration": 0.9968710687021574,
-      "start_time": 6.197505366781269,
-      "speaker_id": "5339"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5339/laugh/0082.wav",
-      "duration": 0.8,
-      "start_time": 25.83355746328831,
-      "speaker_id": "5339"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005173.json b/conversations/conv_005173.json
deleted file mode 100644
index 28830d48191ebcdc601f5878612d0ac0474f3b44..0000000000000000000000000000000000000000
--- a/conversations/conv_005173.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.167666124009145,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.552053505214603,
-      "duration": 6.552053505214603,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.516641010235472,
-      "end_time": 11.017749538259654,
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-      "duration_frames": 72017,
-      "overlap": true,
-      "utterance_id": "7794-295947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295947.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.392938837065046,
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-      "duration": 3.645188427152261,
-      "start_frame": 198287,
-      "duration_frames": 58323,
-      "overlap": false,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 104832
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.515843741331565,
-      "end_time": 20.5645189186646,
-      "duration": 4.048675177333036,
-      "start_frame": 264253,
-      "duration_frames": 64778,
-      "overlap": false,
-      "utterance_id": "7794-295947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295947.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 72017
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.591055651643224,
-      "end_time": 24.993299635902666,
-      "duration": 3.4022439842594423,
-      "start_frame": 345456,
-      "duration_frames": 54435,
-      "overlap": false,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 163155
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.24605048719527,
-      "end_time": 31.167666124009145,
-      "duration": 5.9216156368138755,
-      "start_frame": 403936,
-      "duration_frames": 94745,
-      "overlap": true,
-      "utterance_id": "4806-26895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26895.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
-      "duration": 16.838049886621317,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "duration": 2.0669614512471655,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
-      "duration": 0.7175510204081633,
-      "start_time": 7.958505841595828
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7096/cough/0045.wav",
-      "duration": 0.4261898235488094,
-      "start_time": 0,
-      "speaker_id": "7096"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7794/laugh/0091.wav",
-      "duration": 1.04,
-      "start_time": 11.17976006667525,
-      "speaker_id": "7794"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005186.json b/conversations/conv_005186.json
deleted file mode 100644
index e6a1e6e727c9beda75355acb849a20fe1ae8082b..0000000000000000000000000000000000000000
--- a/conversations/conv_005186.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.088448122606252,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.474169702443605,
-      "duration": 6.474169702443605,
-      "start_frame": 0,
-      "duration_frames": 103586,
-      "overlap": false,
-      "utterance_id": "3261-154309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.708864369662846,
-      "end_time": 11.658108565002182,
-      "duration": 4.949244195339336,
-      "start_frame": 107341,
-      "duration_frames": 79187,
-      "overlap": false,
-      "utterance_id": "3747-173589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.428751505975413,
-      "end_time": 15.295533378039611,
-      "duration": 3.8667818720641973,
-      "start_frame": 182860,
-      "duration_frames": 61868,
-      "overlap": true,
-      "utterance_id": "2712-3536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.380781699758977,
-      "end_time": 21.41304238368089,
-      "duration": 5.032260683921912,
-      "start_frame": 262092,
-      "duration_frames": 80516,
-      "overlap": false,
-      "utterance_id": "3261-154309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 103586
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.881924751062197,
-      "end_time": 26.585347485603045,
-      "duration": 4.7034227345408475,
-      "start_frame": 350110,
-      "duration_frames": 75254,
-      "overlap": false,
-      "utterance_id": "3747-173589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
-      "position_frames": 79187
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.93411897664503,
-      "end_time": 31.088448122606252,
-      "duration": 4.154329145961221,
-      "start_frame": 430945,
-      "duration_frames": 66469,
-      "overlap": false,
-      "utterance_id": "2712-3532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3532.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
-      "duration": 19.069363303351928,
-      "start_time": 0.4061972410977611
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "duration": 3.2186656441337824,
-      "start_time": 23.43897598231961
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3747/laugh/0069.wav",
-      "duration": 1.1545418443646835,
-      "start_time": 9.25523931710285,
-      "speaker_id": "3747"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005190.json b/conversations/conv_005190.json
deleted file mode 100644
index d1fadfb7f5347d7983f3645f540126585a166fa3..0000000000000000000000000000000000000000
--- a/conversations/conv_005190.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "position_frames": 166401
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_005201.json b/conversations/conv_005201.json
deleted file mode 100644
index 77ac396e7ef7004380f35ee5d10ebcb48267a529..0000000000000000000000000000000000000000
--- a/conversations/conv_005201.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-1194.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1572",
-      "position_frames": 68344
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_005217.json b/conversations/conv_005217.json
deleted file mode 100644
index 493076286a323082a016c2f31f646a2a34ccc41d..0000000000000000000000000000000000000000
--- a/conversations/conv_005217.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005221.json b/conversations/conv_005221.json
deleted file mode 100644
index 920257c9cc3cff0b23f81e786df33a1537868808..0000000000000000000000000000000000000000
--- a/conversations/conv_005221.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/319/laugh/0098.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "319"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1737/cough/0029.wav",
-      "duration": 1.12,
-      "start_time": 10.662280162487697,
-      "speaker_id": "1737"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4595/laugh/0115.wav",
-      "duration": 1.16,
-      "start_time": 26.928674554511886,
-      "speaker_id": "4595"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/319/laugh/0098.wav",
-      "duration": 1.0709713144264517,
-      "start_time": 26.516147761919015,
-      "speaker_id": "319"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005226.json b/conversations/conv_005226.json
deleted file mode 100644
index 314e2dd1eec58ae210c86ea036e51c1311af1fde..0000000000000000000000000000000000000000
--- a/conversations/conv_005226.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.743401738157745,
-      "duration": 3.743401738157745,
-      "start_frame": 0,
-      "duration_frames": 59894,
-      "overlap": false,
-      "utterance_id": "7994-258960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258960.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.4919151954279295,
-      "end_time": 9.907423038336965,
-      "duration": 5.415507842909037,
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-      "overlap": false,
-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.616033713407377,
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-      "duration": 4.540693390832608,
-      "start_frame": 169856,
-      "duration_frames": 72651,
-      "overlap": false,
-      "utterance_id": "7994-258960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258960.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 59894
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.31248032919783,
-      "end_time": 21.357670133276514,
-      "duration": 5.045189804078683,
-      "start_frame": 260999,
-      "duration_frames": 80723,
-      "overlap": false,
-      "utterance_id": "6828-68770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.3607461518207,
-      "end_time": 28.12333845449273,
-      "duration": 6.762592302672029,
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-      "duration_frames": 108201,
-      "overlap": true,
-      "utterance_id": "7994-258959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258959.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.004593479833748,
-      "end_time": 32.0,
-      "duration": 1.9954065201662523,
-      "start_frame": 480073,
-      "duration_frames": 31926,
-      "overlap": false,
-      "utterance_id": "6828-68770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 80723
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6828/laugh/0008.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6828/cough/0010.wav",
-      "duration": 0.7129765082041339,
-      "start_time": 6.391551211131185,
-      "speaker_id": "6828"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7994/laugh/0084.wav",
-      "duration": 1.398696728940479,
-      "start_time": 24.737702481194514,
-      "speaker_id": "7994"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6828/laugh/0063.wav",
-      "duration": 1.16,
-      "start_time": 30.67996618927065,
-      "speaker_id": "6828"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005230.json b/conversations/conv_005230.json
deleted file mode 100644
index c22fc0879b0833b33c418ea35714bc42b94c312e..0000000000000000000000000000000000000000
--- a/conversations/conv_005230.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.9229317719275887,
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-      "duration_frames": 62766,
-      "overlap": false,
-      "utterance_id": "5230-4863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4863.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.527354813736897,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-88349.flac |",
-      "real_speaker_id": "4331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5230-4863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4863.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 62766
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.478012220935284,
-      "end_time": 22.71032240720656,
-      "duration": 5.2323101862712775,
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-      "overlap": false,
-      "utterance_id": "4331-57179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-57179.flac |",
-      "real_speaker_id": "4331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.97934906471363,
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-      "duration": 6.8681307371740425,
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-      "duration_frames": 109890,
-      "overlap": false,
-      "utterance_id": "5230-4879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4879.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.218482075020866,
-      "end_time": 32.0,
-      "duration": 1.7815179249791342,
-      "start_frame": 483495,
-      "duration_frames": 28504,
-      "overlap": false,
-      "utterance_id": "8250-279777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-279777.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5230/cough/0005.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.8260957667502163,
-      "start_time": 18.45421630716568,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5230/laugh/0006.wav",
-      "duration": 0.6700287235972969,
-      "start_time": 29.88719609824448,
-      "speaker_id": "5230"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8250/cough/0029.wav",
-      "duration": 0.5574409203916271,
-      "start_time": 29.548502383206937,
-      "speaker_id": "8250"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005237.json b/conversations/conv_005237.json
deleted file mode 100644
index 33e46e586e2040a022ad8076df520c66491ae2ce..0000000000000000000000000000000000000000
--- a/conversations/conv_005237.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.024575105395293,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.763182085485019,
-      "duration": 4.763182085485019,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "310-129055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.341616901396887,
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-      "utterance_id": "1699-141160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141160.flac |",
-      "real_speaker_id": "1699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.779517344097624,
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-      "utterance_id": "310-129055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 76210
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.387220015692902,
-      "end_time": 20.464299476604825,
-      "duration": 5.077079460911923,
-      "start_frame": 246195,
-      "duration_frames": 81233,
-      "overlap": true,
-      "utterance_id": "1795-142410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1795-142410.flac |",
-      "real_speaker_id": "1795",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.91658774869243,
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-      "duration": 3.1479245804788283,
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-      "overlap": true,
-      "utterance_id": "310-129055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 154565
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.29257190651045,
-      "end_time": 31.024575105395293,
-      "duration": 4.732003198884843,
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-      "duration_frames": 75712,
-      "overlap": false,
-      "utterance_id": "1795-142412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1795-142412.flac |",
-      "real_speaker_id": "1795",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1795/laugh/0057.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005240.json b/conversations/conv_005240.json
deleted file mode 100644
index 543a3dde61df8004205934be41b80c3a908765b7..0000000000000000000000000000000000000000
--- a/conversations/conv_005240.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.9582065981208565,
-      "duration": 4.9582065981208565,
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-      "duration_frames": 79331,
-      "overlap": false,
-      "utterance_id": "7739-107483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-107483.flac |",
-      "real_speaker_id": "7739",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.498412179819638,
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-      "duration": 4.201102662861107,
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-      "duration_frames": 67217,
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-      "utterance_id": "8536-244441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8536-244441.flac |",
-      "real_speaker_id": "8536",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "start_frame": 157384,
-      "duration_frames": 106297,
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-      "utterance_id": "7739-107483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-107483.flac |",
-      "real_speaker_id": "7739",
-      "position_frames": 79331
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "position_frames": 67217
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-    {
-      "segment_id": "seg0004",
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7739/cough/0076.wav",
-      "duration": 0.8893528173462706,
-      "start_time": 0.7342156214524315,
-      "speaker_id": "7739"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7739/laugh/0079.wav",
-      "duration": 0.6953419758310897,
-      "start_time": 29.00125151332153,
-      "speaker_id": "7739"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005256.json b/conversations/conv_005256.json
deleted file mode 100644
index 136dec85e1797608ec1e0d235c0c86ecd8b149a4..0000000000000000000000000000000000000000
--- a/conversations/conv_005256.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 6.522478722702957,
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-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.825509346345282,
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-      "overlap": false,
-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.495106906981007,
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-      "duration_frames": 73163,
-      "overlap": true,
-      "utterance_id": "26-495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.687015158617076,
-      "end_time": 26.291256501580303,
-      "duration": 3.6042413429632276,
-      "start_frame": 362992,
-      "duration_frames": 57667,
-      "overlap": false,
-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 77387
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.02934875982945,
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-      "duration_frames": 53184,
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-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 85302
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.004901891028084,
-      "end_time": 32.0,
-      "duration": 0.9950981089719164,
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-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 135054
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
-      "duration": 1.7548299319727891,
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-      "start_time": 19.618500877618157
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_005260.json b/conversations/conv_005260.json
deleted file mode 100644
index cb505c01e0aaa6977a3f4a8a3376b39fd18beb5e..0000000000000000000000000000000000000000
--- a/conversations/conv_005260.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
-      "real_speaker_id": "6236",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-151049.flac |",
-      "real_speaker_id": "2198",
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-      "utterance_id": "2198-46877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-46877.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.675834733417215,
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-      "duration_frames": 91950,
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-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
-      "real_speaker_id": "6236",
-      "position_frames": 99354
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.83016231107782,
-      "end_time": 32.0,
-      "duration": 4.169837688922179,
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-      "overlap": false,
-      "utterance_id": "2198-133546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-133546.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Running_water",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2198/laugh/0094.wav",
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-      "speaker_id": "2198"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005267.json b/conversations/conv_005267.json
deleted file mode 100644
index 9db85d61d7eddcbc402a6430087bc980f8d6bd63..0000000000000000000000000000000000000000
--- a/conversations/conv_005267.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1322-137589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137589.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-185485.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-275164.flac |",
-      "real_speaker_id": "7348",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-75242.flac |",
-      "real_speaker_id": "1212",
-      "position_frames": 0
-    },
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-      "position_frames": 88511
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 5519,
-      "overlap": false,
-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005271.json b/conversations/conv_005271.json
deleted file mode 100644
index b7e2e2af26c0110f6703d014afd8d73e282e66f0..0000000000000000000000000000000000000000
--- a/conversations/conv_005271.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3119-163519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163519.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163519.flac |",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3557/laugh/0028.wav",
-      "duration": 0.8211504257382045,
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-      "speaker_id": "3557"
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-    {
-      "event_class": "cough",
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-      "duration": 0.4102051535721185,
-      "start_time": 22.553002231725415,
-      "speaker_id": "2240"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3119/laugh/0065.wav",
-      "duration": 1.08,
-      "start_time": 29.513979859061074,
-      "speaker_id": "3119"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005276.json b/conversations/conv_005276.json
deleted file mode 100644
index a62846f2a9f0443b775b61b2b4e9908e4b95555c..0000000000000000000000000000000000000000
--- a/conversations/conv_005276.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.074058514387618,
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-      "overlap": false,
-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.032512428122948,
-      "end_time": 7.64923168472331,
-      "duration": 3.616719256600362,
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-      "utterance_id": "2074-159371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-159371.flac |",
-      "real_speaker_id": "2074",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 7.763495023218079,
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-      "duration_frames": 57362,
-      "overlap": false,
-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 49184
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 11.577721264407032,
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-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 106546
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 16.1286745863086,
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-      "duration_frames": 89184,
-      "overlap": true,
-      "utterance_id": "2074-147193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-147193.flac |",
-      "real_speaker_id": "2074",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.90056797083367,
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-      "duration_frames": 65822,
-      "overlap": false,
-      "utterance_id": "103-1241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.905212679733182,
-      "end_time": 32.0,
-      "duration": 4.094787320266818,
-      "start_frame": 446483,
-      "duration_frames": 65516,
-      "overlap": false,
-      "utterance_id": "2074-149033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-149033.flac |",
-      "real_speaker_id": "2074",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
-      "duration": 0.6348979591836734,
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4513/laugh/0016.wav",
-      "duration": 0.8296027580595235,
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-      "speaker_id": "4513"
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-      "event_class": "cough",
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-      "speaker_id": "4513"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2074/laugh/0057.wav",
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-      "speaker_id": "2074"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2074/cough/0047.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4513/laugh/0005.wav",
-      "duration": 1.0,
-      "start_time": 13.632044120791292,
-      "speaker_id": "4513"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005283.json b/conversations/conv_005283.json
deleted file mode 100644
index 5b0c0f2fe4a0bd6a423eb38fcd5d947fc5e9584d..0000000000000000000000000000000000000000
--- a/conversations/conv_005283.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.623926301758818,
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-      "overlap": false,
-      "utterance_id": "6167-282391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-282391.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.359580081884292,
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-      "utterance_id": "3290-179163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-179163.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.705986914408339,
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-      "overlap": false,
-      "utterance_id": "6167-73973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-73973.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.578430231473307,
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-      "utterance_id": "3843-176666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.39150181552158,
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-      "overlap": false,
-      "utterance_id": "6167-73972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-73972.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.430323666560305,
-      "end_time": 32.0,
-      "duration": 3.569676333439695,
-      "start_frame": 454885,
-      "duration_frames": 57114,
-      "overlap": false,
-      "utterance_id": "3290-170207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-170207.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_6.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3290/laugh/0056.wav",
-      "duration": 0.92,
-      "start_time": 8.4678060514467,
-      "speaker_id": "3290"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6167/laugh/0082.wav",
-      "duration": 1.44,
-      "start_time": 14.362707852735705,
-      "speaker_id": "6167"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3843/laugh/0100.wav",
-      "duration": 1.1757575693949391,
-      "start_time": 18.0614862642809,
-      "speaker_id": "3843"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3290/cough/0082.wav",
-      "duration": 0.9702495929084427,
-      "start_time": 31.02975040709156,
-      "speaker_id": "3290"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005288.json b/conversations/conv_005288.json
deleted file mode 100644
index 5febc8aabd02b0a87c94f2792f3c35aea3bf3dc1..0000000000000000000000000000000000000000
--- a/conversations/conv_005288.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.85826076357256,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7188-104637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-104637.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111569.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.449511184638546,
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-      "overlap": false,
-      "utterance_id": "7188-82904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-82904.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.080570887750373,
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-      "utterance_id": "7331-86047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86047.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.282461821182984,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-82904.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 103523
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
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-    {
-      "event_class": "Running_water",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_005295.json b/conversations/conv_005295.json
deleted file mode 100644
index e8b123594b4ab79c7d8cbe0d605a8a718378f4f4..0000000000000000000000000000000000000000
--- a/conversations/conv_005295.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.4960354850854,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.197598704339495,
-      "duration": 3.197598704339495,
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-      "duration_frames": 51161,
-      "overlap": false,
-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.040124960122265,
-      "end_time": 9.92157482385558,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6967-50150.flac |",
-      "real_speaker_id": "6967",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1621-141593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141593.flac |",
-      "real_speaker_id": "1621",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141592.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 174192
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "cough",
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-      "speaker_id": "1801"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005299.json b/conversations/conv_005299.json
deleted file mode 100644
index a80f0424f8d611d8887872b545d86251b1f86e1b..0000000000000000000000000000000000000000
--- a/conversations/conv_005299.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.220600916538247,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40890.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.573129250676892,
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-      "utterance_id": "3060-163542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163542.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.399805657575907,
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-      "duration_frames": 82611,
-      "overlap": false,
-      "utterance_id": "3060-163542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163542.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 79922
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.193754791847002,
-      "end_time": 28.630327699660462,
-      "duration": 4.436572907813458,
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-      "overlap": false,
-      "utterance_id": "5278-40890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40890.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 100149
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.62165603041516,
-      "end_time": 32.0,
-      "duration": 2.37834396958484,
-      "start_frame": 473946,
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-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 90948
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "speaker_id": "5278"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005305.json b/conversations/conv_005305.json
deleted file mode 100644
index 4a127be5599eaa54adfb9df6e6470c66bdbd70ad..0000000000000000000000000000000000000000
--- a/conversations/conv_005305.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.926548468163899,
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-      "utterance_id": "5831-98689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-98689.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
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-    {
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-      "start_time": 3.751621545330922,
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-      "utterance_id": "5831-87174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-87174.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "112-123216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123216.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.232632470003248,
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-      "utterance_id": "5831-87174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-87174.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 65313
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.83189681112401,
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-      "duration": 4.099931617278521,
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-      "duration_frames": 65598,
-      "overlap": false,
-      "utterance_id": "5831-98684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-98684.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.453723290338957,
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-      "overlap": false,
-      "utterance_id": "112-123215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123215.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.2348408993588,
-      "end_time": 32.0,
-      "duration": 3.765159100641199,
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-      "utterance_id": "4813-248641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
-      "duration": 1.583607226765865,
-      "start_time": 0.035513360608316294
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 7.070437229107901,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5831/laugh/0090.wav",
-      "duration": 1.28,
-      "start_time": 17.387710582012705,
-      "speaker_id": "5831"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005309.json b/conversations/conv_005309.json
deleted file mode 100644
index 4df7d42d88b81ffdf1a96d0b210f64387dd2ed45..0000000000000000000000000000000000000000
--- a/conversations/conv_005309.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.60844705858903,
-      "duration": 4.60844705858903,
-      "start_frame": 0,
-      "duration_frames": 73735,
-      "overlap": false,
-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.950869312760661,
-      "end_time": 9.34038665618192,
-      "duration": 4.38951734342126,
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-      "duration_frames": 70232,
-      "overlap": false,
-      "utterance_id": "8430-172388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172388.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.83198929886043,
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-      "duration": 6.896524439108107,
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-      "duration_frames": 110344,
-      "overlap": false,
-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 73735
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.0609404930967,
-      "end_time": 22.434514575275166,
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-      "utterance_id": "4915-113765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-113765.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.100086207186827,
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-      "utterance_id": "8430-172387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172387.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.260868956866098,
-      "end_time": 32.0,
-      "duration": 1.7391310431339022,
-      "start_frame": 484173,
-      "duration_frames": 27826,
-      "overlap": false,
-      "utterance_id": "8430-172388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172388.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 70232
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
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-  ],
-  "paralinguistic_events": [
-    {
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-    },
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6782/laugh/0099.wav",
-      "duration": 0.88,
-      "start_time": 8.85557913583523,
-      "speaker_id": "6782"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8430/laugh/0079.wav",
-      "duration": 1.2583954237507884,
-      "start_time": 21.62857187890139,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8430/laugh/0079.wav",
-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "8430"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005313.json b/conversations/conv_005313.json
deleted file mode 100644
index 133f5e2232033b73b58dd98552b30a591e317aa2..0000000000000000000000000000000000000000
--- a/conversations/conv_005313.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.572756905594236,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.2288659675596536,
-      "duration": 3.2288659675596536,
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-      "overlap": false,
-      "utterance_id": "774-127930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.072465685046572,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-354.flac |",
-      "real_speaker_id": "66",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-354.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.462717196939025,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-354.flac |",
-      "real_speaker_id": "66",
-      "position_frames": 165959
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-  "background_events": [
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-      "event_class": "Blender",
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-      "event_class": "Frying",
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-      "event_class": "laugh",
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-      "duration": 1.88,
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-      "event_class": "cough",
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-      "duration": 1.2969616964071233,
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-      "speaker_id": "960"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/66/laugh/0055.wav",
-      "duration": 1.4616558731400413,
-      "start_time": 30.462717196939025,
-      "speaker_id": "66"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005322.json b/conversations/conv_005322.json
deleted file mode 100644
index e75bd780e26cb9697006b2c0ef62683da0e1afff..0000000000000000000000000000000000000000
--- a/conversations/conv_005322.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1870-148296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-148296.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.249588598957717,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22885.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "6098-57837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6098-57837.flac |",
-      "real_speaker_id": "6098",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.85579745775773,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22885.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 96467
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1870-148296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-148296.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 78960
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "speaker_id": "1870"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005325.json b/conversations/conv_005325.json
deleted file mode 100644
index 95e865f95d3616f176146183b180af681302102c..0000000000000000000000000000000000000000
--- a/conversations/conv_005325.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 74200
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.79943287135957,
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-      "utterance_id": "2140-39822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-39822.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 63273
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.00338640711171,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.94493313873852,
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-      "duration": 3.05506686126148,
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-      "utterance_id": "2140-17255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-17255.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2514/cough/0103.wav",
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-      "start_time": 13.621889497423197,
-      "speaker_id": "2514"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005329.json b/conversations/conv_005329.json
deleted file mode 100644
index 34f1bd2f0206529da3c9762b5420e4d0a6307c02..0000000000000000000000000000000000000000
--- a/conversations/conv_005329.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.732421339628893,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.463826843786105,
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-      "duration_frames": 93454,
-      "overlap": false,
-      "utterance_id": "3606-164911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3606-164911.flac |",
-      "real_speaker_id": "3606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.507021281400617,
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-      "duration_frames": 68812,
-      "overlap": false,
-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 65969
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.810529260937058,
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-      "overlap": true,
-      "utterance_id": "4742-74181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.657458802737693,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3606-6850.flac |",
-      "real_speaker_id": "3606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.188678430775276,
-      "end_time": 30.732421339628893,
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-      "overlap": true,
-      "utterance_id": "4742-74181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 100862
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4742/cough/0043.wav",
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-      "speaker_id": "4742"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005333.json b/conversations/conv_005333.json
deleted file mode 100644
index 6a862c785e9fb6ce3d5a11f3a7250cdde772081a..0000000000000000000000000000000000000000
--- a/conversations/conv_005333.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.455956578329098,
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-      "utterance_id": "5244-73127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-73127.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.643592430267215,
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-      "utterance_id": "5244-54280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-54280.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 12.820971843582532,
-      "end_time": 17.974070084422568,
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-      "overlap": false,
-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 18.168794592778962,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-54280.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 101367
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.27836876320265,
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-      "utterance_id": "5244-73127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-73127.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 87295
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.11730663216218,
-      "end_time": 32.0,
-      "duration": 1.8826933678378204,
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-      "overlap": false,
-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 82449
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5244/laugh/0130.wav",
-      "duration": 1.3,
-      "start_time": 0,
-      "speaker_id": "5244"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8687/laugh/0029.wav",
-      "duration": 1.12,
-      "start_time": 18.265740017528856,
-      "speaker_id": "8687"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5244/cough/0007.wav",
-      "duration": 1.0,
-      "start_time": 21.70410894405247,
-      "speaker_id": "5244"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8687/cough/0096.wav",
-      "duration": 0.4311055742277882,
-      "start_time": 31.433780930777846,
-      "speaker_id": "8687"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005334.json b/conversations/conv_005334.json
deleted file mode 100644
index e27d49d27c0d5ecdc57d0d01372b6f9665e5121f..0000000000000000000000000000000000000000
--- a/conversations/conv_005334.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.572297769645798,
-      "duration": 4.572297769645798,
-      "start_frame": 0,
-      "duration_frames": 73156,
-      "overlap": false,
-      "utterance_id": "1323-138617",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138617.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.552625168479492,
-      "end_time": 10.582817318526388,
-      "duration": 5.030192150046897,
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-      "overlap": false,
-      "utterance_id": "5183-66175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5183-66175.flac |",
-      "real_speaker_id": "5183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.499044283954504,
-      "end_time": 16.484289409527783,
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-      "duration_frames": 79763,
-      "overlap": false,
-      "utterance_id": "52-121057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.628867155763096,
-      "end_time": 22.465001801553857,
-      "duration": 5.83613464579076,
-      "start_frame": 266061,
-      "duration_frames": 93378,
-      "overlap": false,
-      "utterance_id": "5183-68763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5183-68763.flac |",
-      "real_speaker_id": "5183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.710848238879173,
-      "end_time": 27.750404662706593,
-      "duration": 4.039556423827422,
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-      "duration_frames": 64632,
-      "overlap": false,
-      "utterance_id": "5183-116605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5183-116605.flac |",
-      "real_speaker_id": "5183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.249960684864185,
-      "end_time": 32.0,
-      "duration": 3.7500393151358153,
-      "start_frame": 451999,
-      "duration_frames": 60000,
-      "overlap": false,
-      "utterance_id": "1323-149236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-149236.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1323/cough/0047.wav",
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-      "start_time": 4.7341812184056105,
-      "speaker_id": "1323"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/52/cough/0002.wav",
-      "duration": 1.1390957897363247,
-      "start_time": 16.619338268083247,
-      "speaker_id": "52"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1323/cough/0059.wav",
-      "duration": 0.9985380317389465,
-      "start_time": 31.001461968261054,
-      "speaker_id": "1323"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005344.json b/conversations/conv_005344.json
deleted file mode 100644
index 7a6f35133bcc9ae47c62cbc05a23d9344cdc0b61..0000000000000000000000000000000000000000
--- a/conversations/conv_005344.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "481-123719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123719.flac |",
-      "real_speaker_id": "481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.810314001964179,
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-      "overlap": false,
-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 108270,
-      "overlap": false,
-      "utterance_id": "6391-65553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
-      "real_speaker_id": "6391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.015334436456133,
-      "end_time": 23.502593843555104,
-      "duration": 6.48725940709897,
-      "start_frame": 272245,
-      "duration_frames": 103796,
-      "overlap": false,
-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 84969
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.16441353853424,
-      "end_time": 29.700597125358698,
-      "duration": 5.536183586824458,
-      "start_frame": 386630,
-      "duration_frames": 88578,
-      "overlap": false,
-      "utterance_id": "481-123719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123719.flac |",
-      "real_speaker_id": "481",
-      "position_frames": 53865
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.927913359938948,
-      "end_time": 32.0,
-      "duration": 2.072086640061052,
-      "start_frame": 478846,
-      "duration_frames": 33153,
-      "overlap": false,
-      "utterance_id": "6391-65553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
-      "real_speaker_id": "6391",
-      "position_frames": 108270
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_0.wav",
-      "duration": 1.116031746031746,
-      "start_time": 27.326502236684096
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/481/laugh/0099.wav",
-      "duration": 1.5347078264851208,
-      "start_time": 0,
-      "speaker_id": "481"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005348.json b/conversations/conv_005348.json
deleted file mode 100644
index 6c783176fef073c3ff048dc9a604b5afec6b30ac..0000000000000000000000000000000000000000
--- a/conversations/conv_005348.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.882245092225117,
-      "duration": 4.882245092225117,
-      "start_frame": 0,
-      "duration_frames": 78115,
-      "overlap": false,
-      "utterance_id": "6951-79737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6951-79737.flac |",
-      "real_speaker_id": "6951",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.372330412750793,
-      "end_time": 9.765148378355796,
-      "duration": 4.392817965605003,
-      "start_frame": 85957,
-      "duration_frames": 70285,
-      "overlap": false,
-      "utterance_id": "3871-692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.405063076500884,
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-      "start_frame": 166481,
-      "duration_frames": 55607,
-      "overlap": false,
-      "utterance_id": "6951-79737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6951-79737.flac |",
-      "real_speaker_id": "6951",
-      "position_frames": 78115
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.116484648915815,
-      "end_time": 19.983306479086437,
-      "duration": 5.866821830170622,
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-      "duration_frames": 93869,
-      "overlap": false,
-      "utterance_id": "6951-79737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6951-79737.flac |",
-      "real_speaker_id": "6951",
-      "position_frames": 133722
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.15480994937625,
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-      "start_frame": 322476,
-      "duration_frames": 82760,
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-      "utterance_id": "123-25085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-25085.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.895617405602856,
-      "end_time": 32.0,
-      "duration": 6.104382594397144,
-      "start_frame": 414329,
-      "duration_frames": 97670,
-      "overlap": false,
-      "utterance_id": "123-5042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-5042.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
-      "duration": 17.680064791856957,
-      "start_time": 12.768662923532938
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_0.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6951/laugh/0081.wav",
-      "duration": 0.7451026367072251,
-      "start_time": 0,
-      "speaker_id": "6951"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3871/laugh/0048.wav",
-      "duration": 0.6383499262454736,
-      "start_time": 10.039555313144225,
-      "speaker_id": "3871"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6951/laugh/0036.wav",
-      "duration": 0.9921562031020518,
-      "start_time": 9.11707489300671,
-      "speaker_id": "6951"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6951/laugh/0010.wav",
-      "duration": 1.22,
-      "start_time": 20.159796693504912,
-      "speaker_id": "6951"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005349.json b/conversations/conv_005349.json
deleted file mode 100644
index 2bd0dd31f1a31d07d48e1aa4c81b1517e6b006b7..0000000000000000000000000000000000000000
--- a/conversations/conv_005349.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.341384111103278,
-      "duration": 4.341384111103278,
-      "start_frame": 0,
-      "duration_frames": 69462,
-      "overlap": false,
-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.8007415555016815,
-      "end_time": 10.402072050993773,
-      "duration": 5.601330495492091,
-      "start_frame": 76811,
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-      "speaker_id": 1,
-      "start_time": 15.13165142431757,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25053.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.781897716949928,
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-      "duration": 4.218102283050072,
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-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 180255
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-      "event_class": "laugh",
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-      "duration": 0.8161575637308451,
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-      "speaker_id": "2815"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2815/cough/0064.wav",
-      "duration": 0.4948646938755127,
-      "start_time": 29.003176766221305,
-      "speaker_id": "2815"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005352.json b/conversations/conv_005352.json
deleted file mode 100644
index f3c075980a08dbce1f7c760baa6d1fe7bba27efd..0000000000000000000000000000000000000000
--- a/conversations/conv_005352.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.027814307791935,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2319-138656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138656.flac |",
-      "real_speaker_id": "2319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.102721225913064,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-209.flac |",
-      "real_speaker_id": "198",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "1800-142858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.032165894276808,
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-      "utterance_id": "2319-138631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138631.flac |",
-      "real_speaker_id": "2319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138631.flac |",
-      "real_speaker_id": "2319",
-      "position_frames": 57606
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.70671251610036,
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-      "start_frame": 443307,
-      "duration_frames": 53137,
-      "overlap": true,
-      "utterance_id": "1800-142858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 78636
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "Dishes",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9106972568417866,
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-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "1800"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005359.json b/conversations/conv_005359.json
deleted file mode 100644
index c05e991dcc4c6fe036048a291fced6c7af9f7774..0000000000000000000000000000000000000000
--- a/conversations/conv_005359.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.533573986071957,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
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-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.604245570681954,
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 78557
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.62630747807947,
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-      "duration_frames": 71185,
-      "overlap": true,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.191452017727023,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 126655
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 26.15364081544393,
-      "speaker_id": "4044"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005363.json b/conversations/conv_005363.json
deleted file mode 100644
index c91a5fdfdcfa23b00aa0d43b6090ad48cd195ea8..0000000000000000000000000000000000000000
--- a/conversations/conv_005363.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4137-11702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4137-11702.flac |",
-      "real_speaker_id": "4137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "844-135042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-135042.flac |",
-      "real_speaker_id": "844",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7988-114070",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-114070.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "844",
-      "position_frames": 79743
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "duration_frames": 84160,
-      "overlap": false,
-      "utterance_id": "4137-11701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4137-11701.flac |",
-      "real_speaker_id": "4137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "7988-113323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-113323.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7988/laugh/0039.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005364.json b/conversations/conv_005364.json
deleted file mode 100644
index 651b6fe786c59a5646a4cfa33948840d2dc6b9d0..0000000000000000000000000000000000000000
--- a/conversations/conv_005364.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 5.828453901581915,
-      "start_frame": 0,
-      "duration_frames": 93255,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133212.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.87357578898993,
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-      "duration": 3.1264242110100717,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133211.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "event_class": "Dishes",
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-      "event_class": "cough",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005368.json b/conversations/conv_005368.json
deleted file mode 100644
index c5c0f73ae9ff0f081be29f92694adab4e3df54cc..0000000000000000000000000000000000000000
--- a/conversations/conv_005368.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6104-58845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58845.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.134128108518643,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
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-      "real_speaker_id": "7239",
-      "position_frames": 153146
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-      "speaker_id": 2,
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-      "utterance_id": "1265-135635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.235799840502693,
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-      "utterance_id": "1265-135635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_005372.json b/conversations/conv_005372.json
deleted file mode 100644
index 12f5f71f52066b3e40576f8248d42ccf36b55ef1..0000000000000000000000000000000000000000
--- a/conversations/conv_005372.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155508.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155508.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6080-233342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-233342.flac |",
-      "real_speaker_id": "6080",
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005375.json b/conversations/conv_005375.json
deleted file mode 100644
index a46d909692dc7f418914a3890e5f49ba0be4ce19..0000000000000000000000000000000000000000
--- a/conversations/conv_005375.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7286-92930",
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-    {
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-    {
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-  "foreground_events": [
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-      "duration": 2.663869497592546,
-      "start_time": 14.817920580612693
-    },
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
-      "duration": 2.0669614512471655,
-      "start_time": 3.9710401654105185
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6753/laugh/0008.wav",
-      "duration": 1.1488099706053947,
-      "start_time": 8.514339481422418,
-      "speaker_id": "6753"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/421/laugh/0115.wav",
-      "duration": 1.227653581660031,
-      "start_time": 30.772346418339968,
-      "speaker_id": "421"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005387.json b/conversations/conv_005387.json
deleted file mode 100644
index e5942405bf8fcc26d0c1cbf53d2f5629d40841d7..0000000000000000000000000000000000000000
--- a/conversations/conv_005387.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.9040762382132925,
-      "duration": 3.9040762382132925,
-      "start_frame": 0,
-      "duration_frames": 62465,
-      "overlap": false,
-      "utterance_id": "1679-142287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1679-142287.flac |",
-      "real_speaker_id": "1679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.040699709208806,
-      "end_time": 9.019358140606833,
-      "duration": 4.978658431398027,
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-      "overlap": false,
-      "utterance_id": "8506-293168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-293168.flac |",
-      "real_speaker_id": "8506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.980976014762803,
-      "end_time": 12.32074505123526,
-      "duration": 3.339769036472458,
-      "start_frame": 143695,
-      "duration_frames": 53436,
-      "overlap": true,
-      "utterance_id": "7826-107634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-107634.flac |",
-      "real_speaker_id": "7826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.421042095476718,
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-      "utterance_id": "1679-142287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1679-142287.flac |",
-      "real_speaker_id": "1679",
-      "position_frames": 62465
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.521015886586365,
-      "end_time": 23.5777830972112,
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-      "overlap": true,
-      "utterance_id": "7826-271808",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-271808.flac |",
-      "real_speaker_id": "7826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.565822635108496,
-      "end_time": 29.310754259893272,
-      "duration": 4.744931624784775,
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-      "overlap": false,
-      "utterance_id": "1679-142287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1679-142287.flac |",
-      "real_speaker_id": "1679",
-      "position_frames": 149577
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.637551116731977,
-      "end_time": 32.0,
-      "duration": 2.362448883268023,
-      "start_frame": 474200,
-      "duration_frames": 37799,
-      "overlap": false,
-      "utterance_id": "8506-293168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-293168.flac |",
-      "real_speaker_id": "8506",
-      "position_frames": 79658
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 16.561632653061224,
-      "start_time": 13.432548807516056
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
-      "duration": 0.22993197278911565,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.6581574379319202,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7826/laugh/0107.wav",
-      "duration": 1.34,
-      "start_time": 10.214590156456065,
-      "speaker_id": "7826"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7826/cough/0025.wav",
-      "duration": 0.3701581951418509,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1679/laugh/0062.wav",
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-      "start_time": 19.15460010541328,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8506/cough/0017.wav",
-      "duration": 0.8460871618989187,
-      "start_time": 30.022059279255675,
-      "speaker_id": "8506"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005391.json b/conversations/conv_005391.json
deleted file mode 100644
index ae446f97a5a0b7eaf0f12784467079322fbfb09a..0000000000000000000000000000000000000000
--- a/conversations/conv_005391.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 79967,
-      "overlap": false,
-      "utterance_id": "7128-84121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7128-84121.flac |",
-      "real_speaker_id": "7128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.682710837712207,
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-      "utterance_id": "216-122451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122451.flac |",
-      "real_speaker_id": "216",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2133-2148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-2148.flac |",
-      "real_speaker_id": "2133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.193528568532054,
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-      "utterance_id": "7128-84121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7128-84121.flac |",
-      "real_speaker_id": "7128",
-      "position_frames": 79967
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.249235180332327,
-      "end_time": 24.50358244522735,
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-      "duration_frames": 84069,
-      "overlap": false,
-      "utterance_id": "216-122451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122451.flac |",
-      "real_speaker_id": "216",
-      "position_frames": 53910
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.31123542799333,
-      "end_time": 28.920233412639508,
-      "duration": 3.6089979846461757,
-      "start_frame": 404979,
-      "duration_frames": 57743,
-      "overlap": false,
-      "utterance_id": "2133-2148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-2148.flac |",
-      "real_speaker_id": "2133",
-      "position_frames": 61166
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.100528812546322,
-      "end_time": 32.0,
-      "duration": 2.8994711874536776,
-      "start_frame": 465608,
-      "duration_frames": 46391,
-      "overlap": false,
-      "utterance_id": "7128-84122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7128-84122.flac |",
-      "real_speaker_id": "7128",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/216/laugh/0092.wav",
-      "duration": 1.32,
-      "start_time": 24.79755715926442,
-      "speaker_id": "216"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005407.json b/conversations/conv_005407.json
deleted file mode 100644
index 1099465f53c923c090e0b3c2f6fbdd01f1969f43..0000000000000000000000000000000000000000
--- a/conversations/conv_005407.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.512205449131667,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.6211855258671193,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 52756
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.847903226780513,
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-      "real_speaker_id": "4420",
-      "position_frames": 59945
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3380-6175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3380-6175.flac |",
-      "real_speaker_id": "3380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.531520775558462,
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-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 147341
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3380/cough/0041.wav",
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-      "speaker_id": "3380"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005411.json b/conversations/conv_005411.json
deleted file mode 100644
index 1ef5291e4d832aa14f5067b56428689e56f58363..0000000000000000000000000000000000000000
--- a/conversations/conv_005411.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.83059721590698,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3137-163504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163504.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163504.flac |",
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-      "position_frames": 78351
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.463237990930857,
-      "end_time": 25.12201802675405,
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-      "start_frame": 295411,
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-      "overlap": false,
-      "utterance_id": "5199-18509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-18509.flac |",
-      "real_speaker_id": "5199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.074756194335173,
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-      "utterance_id": "3137-163489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163489.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5199/laugh/0025.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5199/laugh/0049.wav",
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-      "speaker_id": "3137"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005427.json b/conversations/conv_005427.json
deleted file mode 100644
index ac3c2c4be4fa27754414970dfaf55ccfb01df00b..0000000000000000000000000000000000000000
--- a/conversations/conv_005427.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.1035947731743385,
-      "duration": 3.1035947731743385,
-      "start_frame": 0,
-      "duration_frames": 49657,
-      "overlap": false,
-      "utterance_id": "1226-141268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141268.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.070189962032826,
-      "end_time": 10.610359598252419,
-      "duration": 6.540169636219593,
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-      "duration_frames": 104642,
-      "overlap": false,
-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
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-      "utterance_id": "1226-141279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.18356581617543,
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-      "duration": 3.7728154197887767,
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-      "duration_frames": 60365,
-      "overlap": false,
-      "utterance_id": "196-122152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122152.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.495680297326135,
-      "end_time": 27.257566344342006,
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-      "start_frame": 343930,
-      "duration_frames": 92190,
-      "overlap": false,
-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.027928107634235,
-      "end_time": 32.0,
-      "duration": 3.972071892365765,
-      "start_frame": 448446,
-      "duration_frames": 63553,
-      "overlap": false,
-      "utterance_id": "1226-141279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 76420
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 23.123673469387754,
-      "start_time": 3.8855875052357836
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.446426930543513,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_6.wav",
-      "duration": 0.5336961451247165,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7555/laugh/0097.wav",
-      "duration": 0.9,
-      "start_time": 10.79849170007288,
-      "speaker_id": "7555"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1226/laugh/0031.wav",
-      "duration": 0.84,
-      "start_time": 10.610414569045489,
-      "speaker_id": "1226"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1226/cough/0094.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "1226"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005430.json b/conversations/conv_005430.json
deleted file mode 100644
index 571f7e6d7e12e22147ab11c7a5f59ff61594057d..0000000000000000000000000000000000000000
--- a/conversations/conv_005430.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.889461229487443,
-      "duration": 4.889461229487443,
-      "start_frame": 0,
-      "duration_frames": 78231,
-      "overlap": false,
-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.59034080299492,
-      "end_time": 11.85239007282711,
-      "duration": 6.26204926983219,
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-      "overlap": false,
-      "utterance_id": "1754-140639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-140639.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.44363267389329,
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-      "duration": 6.460381432421347,
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-      "overlap": true,
-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 78231
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.26350734181688,
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-      "duration_frames": 72310,
-      "overlap": false,
-      "utterance_id": "1754-140639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-140639.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 100192
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.145279130989636,
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-      "overlap": false,
-      "utterance_id": "1754-137004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-137004.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.807739485372913,
-      "end_time": 32.0,
-      "duration": 1.1922605146270868,
-      "start_frame": 492923,
-      "duration_frames": 19076,
-      "overlap": false,
-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 181597
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 12.614040935040155,
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7250/cough/0078.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1754/laugh/0057.wav",
-      "duration": 1.32,
-      "start_time": 7.185038312839586,
-      "speaker_id": "1754"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7250/cough/0118.wav",
-      "duration": 0.9990569139530268,
-      "start_time": 17.98988490187561,
-      "speaker_id": "7250"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1754/laugh/0002.wav",
-      "duration": 0.5225298585528528,
-      "start_time": 18.557470560333115,
-      "speaker_id": "1754"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1754/laugh/0080.wav",
-      "duration": 1.2674825207660243,
-      "start_time": 26.43357973164485,
-      "speaker_id": "1754"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005431.json b/conversations/conv_005431.json
deleted file mode 100644
index 65a7692408d90d55675649cb891879d326dd2a6e..0000000000000000000000000000000000000000
--- a/conversations/conv_005431.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.4782099558478095,
-      "duration": 4.4782099558478095,
-      "start_frame": 0,
-      "duration_frames": 71651,
-      "overlap": false,
-      "utterance_id": "4267-78186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-78186.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.4500801870242075,
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-      "utterance_id": "8011-291458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-291458.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7208-7768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.30356478369557,
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-      "real_speaker_id": "7208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.110545771149646,
-      "end_time": 32.0,
-      "duration": 1.8894542288503544,
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-      "overlap": false,
-      "utterance_id": "4267-78186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-78186.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 71651
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "cough",
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-      "duration": 0.37566007566585935,
-      "start_time": 0,
-      "speaker_id": "4267"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8011/laugh/0032.wav",
-      "duration": 0.7403417309570395,
-      "start_time": 11.389986808662515,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7208/cough/0057.wav",
-      "duration": 0.35348400057234014,
-      "start_time": 18.926568688161815,
-      "speaker_id": "7208"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4267/cough/0004.wav",
-      "duration": 0.88,
-      "start_time": 30.74110999338093,
-      "speaker_id": "4267"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005446.json b/conversations/conv_005446.json
deleted file mode 100644
index b6e8cbc3e6233d7b3b68690f4db4fa96e366aaa1..0000000000000000000000000000000000000000
--- a/conversations/conv_005446.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.491800979354349,
-      "duration": 4.491800979354349,
-      "start_frame": 0,
-      "duration_frames": 71868,
-      "overlap": false,
-      "utterance_id": "5118-111610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111610.flac |",
-      "real_speaker_id": "5118",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-40456.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.242161202925764,
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-      "utterance_id": "1938-176228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-176228.flac |",
-      "real_speaker_id": "1938",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.163010906752426,
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-      "utterance_id": "5118-111610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111610.flac |",
-      "real_speaker_id": "5118",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.24715855914078,
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-      "utterance_id": "5118-111612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111612.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_005450.json b/conversations/conv_005450.json
deleted file mode 100644
index 1eec9d0574b02987222b1b298bc278108730768c..0000000000000000000000000000000000000000
--- a/conversations/conv_005450.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.867073970492515,
-      "duration": 4.867073970492515,
-      "start_frame": 0,
-      "duration_frames": 77873,
-      "overlap": false,
-      "utterance_id": "4443-24511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-24511.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.762317653739665,
-      "end_time": 9.153623246203033,
-      "duration": 3.391305592463367,
-      "start_frame": 92197,
-      "duration_frames": 54260,
-      "overlap": false,
-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.651758497935798,
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-      "overlap": false,
-      "utterance_id": "4443-11591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-11591.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.200155918971292,
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-      "duration": 4.2317643739639585,
-      "start_frame": 227202,
-      "duration_frames": 67708,
-      "overlap": false,
-      "utterance_id": "7229-80665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80665.flac |",
-      "real_speaker_id": "7229",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.799649274322288,
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-      "overlap": false,
-      "utterance_id": "4443-3992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-3992.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.29755151935316,
-      "end_time": 30.115086580873687,
-      "duration": 4.817535061520525,
-      "start_frame": 404760,
-      "duration_frames": 77080,
-      "overlap": false,
-      "utterance_id": "7229-80665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80665.flac |",
-      "real_speaker_id": "7229",
-      "position_frames": 67708
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.887720652882344,
-      "end_time": 32.0,
-      "duration": 1.1122793471176564,
-      "start_frame": 494203,
-      "duration_frames": 17796,
-      "overlap": false,
-      "utterance_id": "4443-3992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-3992.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 95330
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "duration": 0.5214826031876966,
-      "start_time": 14.112325885599219,
-      "speaker_id": "4443"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7229/laugh/0020.wav",
-      "duration": 1.12,
-      "start_time": 18.51859495991046,
-      "speaker_id": "7229"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7229/laugh/0081.wav",
-      "duration": 0.7833131220285345,
-      "start_time": 27.969482890807235,
-      "speaker_id": "7229"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005466.json b/conversations/conv_005466.json
deleted file mode 100644
index addfc9b78e4fca7d65df2c8cfaabdf277120e286..0000000000000000000000000000000000000000
--- a/conversations/conv_005466.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.642455504042511,
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-      "duration_frames": 106279,
-      "overlap": false,
-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.931943527297642,
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-      "overlap": false,
-      "utterance_id": "8097-108005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-108005.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 0
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-    {
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-      "utterance_id": "3686-171134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171134.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.940217101491747,
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-      "overlap": false,
-      "utterance_id": "4174-69287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-69287.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.413473786956594,
-      "end_time": 28.148083979283,
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-      "utterance_id": "8097-108005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-108005.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 70729
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.554922408323574,
-      "end_time": 32.0,
-      "duration": 3.4450775916764265,
-      "start_frame": 456878,
-      "duration_frames": 55121,
-      "overlap": false,
-      "utterance_id": "8097-114971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-114971.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3686/cough/0053.wav",
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-      "start_time": 16.265324673588275,
-      "speaker_id": "3686"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4174/laugh/0071.wav",
-      "duration": 0.7430014117748626,
-      "start_time": 22.895742502473706,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8097/laugh/0008.wav",
-      "duration": 0.6822366367922699,
-      "start_time": 22.512584374184424,
-      "speaker_id": "8097"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005467.json b/conversations/conv_005467.json
deleted file mode 100644
index a89cb477b0650dd7e84328d3692eef9ebdecb9a5..0000000000000000000000000000000000000000
--- a/conversations/conv_005467.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.553031285538015,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.682629231671908,
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-      "start_frame": 0,
-      "duration_frames": 90922,
-      "overlap": false,
-      "utterance_id": "2660-173260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-173260.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.579839702711791,
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-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "1311-134176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134176.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.706828798326445,
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-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 74868
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.952706392389693,
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-      "utterance_id": "2660-154321",
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-      "real_speaker_id": "2660",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 30.82190298377257,
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-      "duration_frames": 11698,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 166888
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1311/laugh/0027.wav",
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-      "start_time": 23.279039488080958,
-      "speaker_id": "2660"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005470.json b/conversations/conv_005470.json
deleted file mode 100644
index e3b0b4bc18f45bede52a250215e0b12c1c915b7c..0000000000000000000000000000000000000000
--- a/conversations/conv_005470.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.488851666059569,
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-      "duration_frames": 87821,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-407.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-407.flac |",
-      "real_speaker_id": "2952",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 1.6189129724899303,
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-      "utterance_id": "1182-134316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134316.flac |",
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "speaker_id": "1182"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005485.json b/conversations/conv_005485.json
deleted file mode 100644
index 5e2cdb851dbd11360cca30f1f587abb9f7fbb343..0000000000000000000000000000000000000000
--- a/conversations/conv_005485.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5918-46890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.547976240825651,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
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-      "overlap": false,
-      "utterance_id": "6258-49755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
-      "real_speaker_id": "6258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.052794659420773,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
-      "real_speaker_id": "6258",
-      "position_frames": 110617
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-130138.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.791496687760013,
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-      "duration": 1.208503312239987,
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-      "duration_frames": 19336,
-      "overlap": false,
-      "utterance_id": "5918-46890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 154906
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-      "duration": 1.26,
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-      "event_class": "laugh",
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-      "start_time": 30.64,
-      "speaker_id": "5918"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005488.json b/conversations/conv_005488.json
deleted file mode 100644
index e5be716a2052276ffc3aebe5e88297276de7f99a..0000000000000000000000000000000000000000
--- a/conversations/conv_005488.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-100174.flac |",
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-      "position_frames": 0
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.930366776483474,
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-      "start_frame": 286885,
-      "duration_frames": 64816,
-      "overlap": false,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 76825
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.244456781320114,
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-      "duration_frames": 92113,
-      "overlap": false,
-      "utterance_id": "3934-102413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3934-102413.flac |",
-      "real_speaker_id": "3934",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.372702287440795,
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-      "duration": 3.627297712559205,
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-      "utterance_id": "4697-100174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-100174.flac |",
-      "real_speaker_id": "4697",
-      "position_frames": 76585
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "start_time": 14.190437589636282,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4697/laugh/0092.wav",
-      "duration": 1.07651660577501,
-      "start_time": 30.92348339422499,
-      "speaker_id": "4697"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005489.json b/conversations/conv_005489.json
deleted file mode 100644
index e67c92950d4d2288c5d8ef60f7be49d7ac0ec493..0000000000000000000000000000000000000000
--- a/conversations/conv_005489.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.734651845001027,
-      "start_frame": 0,
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-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.199443119123995,
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-      "duration_frames": 94437,
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-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 91754
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.650247684681162,
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-      "duration_frames": 107689,
-      "overlap": false,
-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.87265357882179,
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-      "duration": 3.548697802621473,
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-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 186191
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.800973460013658,
-      "end_time": 29.94251403276112,
-      "duration": 6.141540572747463,
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-      "duration_frames": 98264,
-      "overlap": false,
-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 107689
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.785792937677023,
-      "end_time": 32.0,
-      "duration": 1.214207062322977,
-      "start_frame": 492572,
-      "duration_frames": 19427,
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-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 242970
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.493247093179767,
-      "start_time": 4.302795190683393
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7720/laugh/0005.wav",
-      "duration": 1.150189400283759,
-      "start_time": 0.021215498101828885,
-      "speaker_id": "7720"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7720/cough/0042.wav",
-      "duration": 0.5558829989536032,
-      "start_time": 23.581289612479683,
-      "speaker_id": "7720"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005493.json b/conversations/conv_005493.json
deleted file mode 100644
index 23bbe47d7c2f1f490037a87f0cb4688a021779ef..0000000000000000000000000000000000000000
--- a/conversations/conv_005493.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "speaker_id": "5789"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005503.json b/conversations/conv_005503.json
deleted file mode 100644
index eeb223710317753ccc6386b742b33f7505ca993c..0000000000000000000000000000000000000000
--- a/conversations/conv_005503.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1737",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_005508.json b/conversations/conv_005508.json
deleted file mode 100644
index ebe493ec6028fae9b73129835f32d492896bb1eb..0000000000000000000000000000000000000000
--- a/conversations/conv_005508.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "position_frames": 0
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-      "real_speaker_id": "3790",
-      "position_frames": 100166
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "4701",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3790-140725",
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-      "position_frames": 187082
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005515.json b/conversations/conv_005515.json
deleted file mode 100644
index f58537e8bdf09eb17ae32dabb0f916d748c0abfa..0000000000000000000000000000000000000000
--- a/conversations/conv_005515.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.056741623917762,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "4447-14919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244431.flac |",
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-    {
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-      "position_frames": 87489
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_005519.json b/conversations/conv_005519.json
deleted file mode 100644
index 75382fd755080bb3ebca95541682191c21156040..0000000000000000000000000000000000000000
--- a/conversations/conv_005519.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.173044416005366,
-      "duration": 3.173044416005366,
-      "start_frame": 0,
-      "duration_frames": 50768,
-      "overlap": false,
-      "utterance_id": "1079-128632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1079-128632.flac |",
-      "real_speaker_id": "1079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.7061709638949036,
-      "end_time": 8.243587579224588,
-      "duration": 4.537416615329684,
-      "start_frame": 59298,
-      "duration_frames": 72598,
-      "overlap": false,
-      "utterance_id": "6540-232291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-232291.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.650637869772138,
-      "end_time": 12.373781609897076,
-      "duration": 3.7231437401249377,
-      "start_frame": 138410,
-      "duration_frames": 59570,
-      "overlap": false,
-      "utterance_id": "1079-128633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1079-128633.flac |",
-      "real_speaker_id": "1079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 12.324664539583708,
-      "end_time": 17.904317658688072,
-      "duration": 5.579653119104364,
-      "start_frame": 197194,
-      "duration_frames": 89274,
-      "overlap": true,
-      "utterance_id": "6540-62512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-62512.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.7979187486542,
-      "end_time": 22.372551134806546,
-      "duration": 4.574632386152344,
-      "start_frame": 284766,
-      "duration_frames": 73194,
-      "overlap": true,
-      "utterance_id": "7520-258954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.877409740061402,
-      "end_time": 29.284599566773764,
-      "duration": 5.407189826712363,
-      "start_frame": 382038,
-      "duration_frames": 86515,
-      "overlap": false,
-      "utterance_id": "1079-128631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1079-128631.flac |",
-      "real_speaker_id": "1079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.535251305379877,
-      "end_time": 32.0,
-      "duration": 2.4647486946201234,
-      "start_frame": 472564,
-      "duration_frames": 39435,
-      "overlap": false,
-      "utterance_id": "6540-232291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-232291.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 72598
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
-      "start_time": 0.7024284670789135
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6540/cough/0116.wav",
-      "duration": 1.28,
-      "start_time": 6.787369498450676,
-      "speaker_id": "6540"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7520/laugh/0066.wav",
-      "duration": 1.0081052979533531,
-      "start_time": 16.548803908568605,
-      "speaker_id": "7520"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005522.json b/conversations/conv_005522.json
deleted file mode 100644
index 44e7f7031fbe5c8bb4181dca168967ebcf61fa05..0000000000000000000000000000000000000000
--- a/conversations/conv_005522.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.268984398313214,
-      "duration": 5.268984398313214,
-      "start_frame": 0,
-      "duration_frames": 84303,
-      "overlap": false,
-      "utterance_id": "2488-155526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155526.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.433017337661241,
-      "end_time": 12.05766693558926,
-      "duration": 5.62464959792802,
-      "start_frame": 102928,
-      "duration_frames": 89994,
-      "overlap": false,
-      "utterance_id": "2488-155526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155526.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 84303
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.171143709401656,
-      "end_time": 18.2194024447792,
-      "duration": 6.048258735377541,
-      "start_frame": 194738,
-      "duration_frames": 96772,
-      "overlap": true,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.986115616093137,
-      "end_time": 23.345564374029685,
-      "duration": 5.3594487579365495,
-      "start_frame": 287777,
-      "duration_frames": 85751,
-      "overlap": true,
-      "utterance_id": "544-121090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.689775863080513,
-      "end_time": 30.566111417985546,
-      "duration": 5.876335554905034,
-      "start_frame": 395036,
-      "duration_frames": 94021,
-      "overlap": false,
-      "utterance_id": "2488-155524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155524.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.702802455432405,
-      "end_time": 32.0,
-      "duration": 1.2971975445675952,
-      "start_frame": 491244,
-      "duration_frames": 20755,
-      "overlap": false,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 96772
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 23.123673469387754,
-      "start_time": 5.048892656649853
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
-      "duration": 1.4075573741530678,
-      "start_time": 22.19061903301305
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/583/laugh/0034.wav",
-      "duration": 1.16,
-      "start_time": 14.480814660414488,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/583/cough/0096.wav",
-      "duration": 0.6313062821587638,
-      "start_time": 18.387122442828584,
-      "speaker_id": "583"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005523.json b/conversations/conv_005523.json
deleted file mode 100644
index 058f4f482aca39c84936a6a9d4156ab531a1605c..0000000000000000000000000000000000000000
--- a/conversations/conv_005523.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.443915784026135,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.608661610344852,
-      "duration": 5.608661610344852,
-      "start_frame": 0,
-      "duration_frames": 89738,
-      "overlap": false,
-      "utterance_id": "8543-280375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.876700915529126,
-      "end_time": 9.451571796425885,
-      "duration": 3.5748708808967593,
-      "start_frame": 94027,
-      "duration_frames": 57197,
-      "overlap": false,
-      "utterance_id": "3537-5703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5703.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.903509819203752,
-      "end_time": 15.880844903646686,
-      "duration": 4.977335084442935,
-      "start_frame": 174456,
-      "duration_frames": 79637,
-      "overlap": false,
-      "utterance_id": "8543-280375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 89738
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.396484962753085,
-      "end_time": 21.082414570634988,
-      "duration": 4.685929607881901,
-      "start_frame": 262343,
-      "duration_frames": 74974,
-      "overlap": false,
-      "utterance_id": "3537-5703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5703.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 57197
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.74331009403348,
-      "end_time": 27.110751582450828,
-      "duration": 5.36744148841735,
-      "start_frame": 347892,
-      "duration_frames": 85879,
-      "overlap": false,
-      "utterance_id": "8543-280375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 169375
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.011435805332383,
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-      "duration": 3.4324799786937517,
-      "start_frame": 432182,
-      "duration_frames": 54919,
-      "overlap": true,
-      "utterance_id": "3537-5704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5704.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.0119888020865737,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "start_time": 5.667126403676879,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3537/laugh/0037.wav",
-      "duration": 1.04,
-      "start_time": 18.654242338693088,
-      "speaker_id": "3537"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005535.json b/conversations/conv_005535.json
deleted file mode 100644
index b9079073c77106f559415567f7b423972a7d2435..0000000000000000000000000000000000000000
--- a/conversations/conv_005535.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.3133306873727495,
-      "duration": 6.3133306873727495,
-      "start_frame": 0,
-      "duration_frames": 101013,
-      "overlap": false,
-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.709544462921854,
-      "end_time": 12.355702542389158,
-      "duration": 5.6461580794673045,
-      "start_frame": 107352,
-      "duration_frames": 90338,
-      "overlap": false,
-      "utterance_id": "7226-86965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.580620247458992,
-      "end_time": 19.695378225179056,
-      "duration": 6.114757977720066,
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-      "duration_frames": 97836,
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-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 101013
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.172004963141365,
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-      "utterance_id": "7226-86965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 90338
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.749579102543017,
-      "end_time": 29.69025175533426,
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-      "duration_frames": 79050,
-      "overlap": false,
-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 198849
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 0.6727416804454407,
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-      "utterance_id": "3436-172171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 3.0654482997387817,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 18.96039632847951,
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-    {
-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3436/cough/0038.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005539.json b/conversations/conv_005539.json
deleted file mode 100644
index 8378dc462a92b03090077f8a07311077f2a72379..0000000000000000000000000000000000000000
--- a/conversations/conv_005539.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.565734606981625,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.766279915836932,
-      "duration": 4.766279915836932,
-      "start_frame": 0,
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-      "utterance_id": "4257-6397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
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-      "real_speaker_id": "4733",
-      "position_frames": 0
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-      "start_time": 16.11190434172294,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290391.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.826960054121713,
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-      "duration": 4.980285180488842,
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-      "overlap": false,
-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 75807
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.75258605914718,
-      "end_time": 31.565734606981625,
-      "duration": 4.8131485478344445,
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-      "utterance_id": "8565-290398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290398.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.32,
-      "start_time": 10.246905234526501,
-      "speaker_id": "4733"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4733/laugh/0002.wav",
-      "duration": 0.7887889729825313,
-      "start_time": 26.07743355030375,
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-    {
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-      "start_time": 29.56197145961358,
-      "speaker_id": "8565"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005542.json b/conversations/conv_005542.json
deleted file mode 100644
index fe88d7645653ba9b9b22ce243171a68f40542569..0000000000000000000000000000000000000000
--- a/conversations/conv_005542.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.362586583567989,
-      "duration": 5.362586583567989,
-      "start_frame": 0,
-      "duration_frames": 85801,
-      "overlap": false,
-      "utterance_id": "2943-171001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171001.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.968588439868502,
-      "end_time": 9.481677351836133,
-      "duration": 3.513088911967631,
-      "start_frame": 95497,
-      "duration_frames": 56209,
-      "overlap": false,
-      "utterance_id": "2943-171001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171001.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 85801
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "163-122947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-122947.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.427221383524195,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171000.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.18033199025343,
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-      "duration": 3.8196680097465716,
-      "start_frame": 450885,
-      "duration_frames": 61114,
-      "overlap": false,
-      "utterance_id": "163-122947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-122947.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 94472
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "duration": 0.74,
-      "start_time": 5.101481042253771,
-      "speaker_id": "2943"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/163/laugh/0101.wav",
-      "duration": 1.16,
-      "start_time": 12.441002165092398,
-      "speaker_id": "163"
-    },
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2943/laugh/0089.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/163/laugh/0003.wav",
-      "duration": 1.52,
-      "start_time": 29.519114491270255,
-      "speaker_id": "163"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005549.json b/conversations/conv_005549.json
deleted file mode 100644
index 0f01b76fcc9e8bdf549bfe56250bfe8091b643d0..0000000000000000000000000000000000000000
--- a/conversations/conv_005549.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "start_time": 0.0,
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-      "utterance_id": "584-124229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124229.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.83862612338326,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124229.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7133.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-132032.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3179-7135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7135.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3330",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7142.flac |",
-      "real_speaker_id": "3179",
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-    }
-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-    },
-    {
-      "event_class": "laugh",
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-      "start_time": 25.946571284246495,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3330/laugh/0087.wav",
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-      "start_time": 26.307637065314175,
-      "speaker_id": "3330"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005554.json b/conversations/conv_005554.json
deleted file mode 100644
index a7661b0fefec050e6d9a1208043b9b9b5f067edb..0000000000000000000000000000000000000000
--- a/conversations/conv_005554.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "end_time": 3.7345624228052063,
-      "duration": 3.7345624228052063,
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-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
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-    },
-    {
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-    {
-      "segment_id": "seg0005",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1085/laugh/0074.wav",
-      "duration": 1.2705404078768372,
-      "start_time": 21.19683054630123,
-      "speaker_id": "1085"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4535/laugh/0015.wav",
-      "duration": 1.06,
-      "start_time": 23.677045367603107,
-      "speaker_id": "4535"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4535/cough/0069.wav",
-      "duration": 0.310533330637022,
-      "start_time": 27.81398275741919,
-      "speaker_id": "4535"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1085/laugh/0056.wav",
-      "duration": 1.48,
-      "start_time": 29.364669298009385,
-      "speaker_id": "1085"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005558.json b/conversations/conv_005558.json
deleted file mode 100644
index d46a624fb8879be408d502e9e32a76ab34631b5c..0000000000000000000000000000000000000000
--- a/conversations/conv_005558.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.04860876870704,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.40834495012629,
-      "duration": 4.40834495012629,
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-      "overlap": false,
-      "utterance_id": "7055-87276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-87276.flac |",
-      "real_speaker_id": "7055",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.12421182807731,
-      "end_time": 8.197655682913286,
-      "duration": 3.073443854835977,
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-      "duration_frames": 49175,
-      "overlap": false,
-      "utterance_id": "2042-134780",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-134780.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.734270414577985,
-      "end_time": 11.908938612748297,
-      "duration": 3.1746681981703126,
-      "start_frame": 139748,
-      "duration_frames": 50794,
-      "overlap": false,
-      "utterance_id": "7055-85634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-85634.flac |",
-      "real_speaker_id": "7055",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.376362468610363,
-      "end_time": 19.32264974892092,
-      "duration": 6.946287280310557,
-      "start_frame": 198021,
-      "duration_frames": 111140,
-      "overlap": false,
-      "utterance_id": "2042-148298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-148298.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.04195999147381,
-      "end_time": 24.929030837838177,
-      "duration": 4.887070846364367,
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-      "overlap": false,
-      "utterance_id": "7139-75362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75362.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.89999954566001,
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-      "duration": 5.148609223047032,
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-      "utterance_id": "7055-85634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-85634.flac |",
-      "real_speaker_id": "7055",
-      "position_frames": 50794
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7055/laugh/0053.wav",
-      "duration": 0.7433459695456455,
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-      "speaker_id": "7055"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2042/laugh/0033.wav",
-      "duration": 0.74,
-      "start_time": 11.336796198571934,
-      "speaker_id": "2042"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005562.json b/conversations/conv_005562.json
deleted file mode 100644
index ab47479b242120b6fef5bac3a26cd3e84379d9d2..0000000000000000000000000000000000000000
--- a/conversations/conv_005562.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4991-6180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4991-6180.flac |",
-      "real_speaker_id": "4991",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.794117615892991,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-153309.flac |",
-      "real_speaker_id": "3923",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4991-6181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4991-6181.flac |",
-      "real_speaker_id": "4991",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.12239597216402,
-      "end_time": 25.76993366594155,
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-      "overlap": false,
-      "utterance_id": "3923-174992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-174992.flac |",
-      "real_speaker_id": "3923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.457877456741816,
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-      "duration": 5.542122543258184,
-      "start_frame": 423326,
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-      "utterance_id": "8675-292352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 68956
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-    {
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-      "start_time": 19.406954458928183,
-      "speaker_id": "4991"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005574.json b/conversations/conv_005574.json
deleted file mode 100644
index b53c9a364a4ddbf05ba2745141b249bfa8c6e62e..0000000000000000000000000000000000000000
--- a/conversations/conv_005574.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5778-12761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-12761.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 0
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-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
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-    {
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-      "segment_id": "seg0004",
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-      "utterance_id": "957-132537",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132537.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "957-130588",
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-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.1,
-      "start_time": 30.9,
-      "speaker_id": "957"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005575.json b/conversations/conv_005575.json
deleted file mode 100644
index 303176d4d982a8e72242ce93c9a80395697e4257..0000000000000000000000000000000000000000
--- a/conversations/conv_005575.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4148-134149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-134149.flac |",
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-    {
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-      "duration": 3.3985852590281564,
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/597/laugh/0097.wav",
-      "duration": 1.24,
-      "start_time": 14.754806178548739,
-      "speaker_id": "597"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4148/laugh/0087.wav",
-      "duration": 0.537495787593826,
-      "start_time": 20.332482300029817,
-      "speaker_id": "4148"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4148/laugh/0100.wav",
-      "duration": 0.7573946805244932,
-      "start_time": 31.24260531947551,
-      "speaker_id": "4148"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005578.json b/conversations/conv_005578.json
deleted file mode 100644
index d1b09e4b96348a134c3642483f052e9f6dede284..0000000000000000000000000000000000000000
--- a/conversations/conv_005578.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.216603630525537,
-      "duration": 4.216603630525537,
-      "start_frame": 0,
-      "duration_frames": 67465,
-      "overlap": false,
-      "utterance_id": "6138-93182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93182.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.349430204390922,
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-      "duration": 5.18862710866201,
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-      "duration_frames": 83018,
-      "overlap": false,
-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.510938608060247,
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-      "duration_frames": 84761,
-      "overlap": false,
-      "utterance_id": "4433-16802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.754106255293337,
-      "end_time": 21.72113323054574,
-      "duration": 4.967026975252401,
-      "start_frame": 268065,
-      "duration_frames": 79472,
-      "overlap": true,
-      "utterance_id": "7357-94126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.092360831949954,
-      "end_time": 27.50536723252393,
-      "duration": 5.413006400573975,
-      "start_frame": 353477,
-      "duration_frames": 86608,
-      "overlap": true,
-      "utterance_id": "4433-16802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 84761
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.085104966883343,
-      "end_time": 32.0,
-      "duration": 2.9148950331166574,
-      "start_frame": 465361,
-      "duration_frames": 46638,
-      "overlap": false,
-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 83018
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.9447845804988662,
-      "start_time": 7.16976974488837
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6138/laugh/0029.wav",
-      "duration": 1.3856626711433675,
-      "start_time": 0,
-      "speaker_id": "6138"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7357/cough/0017.wav",
-      "duration": 0.96,
-      "start_time": 9.644904647004664,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4433/laugh/0030.wav",
-      "duration": 0.7394589204168132,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4433/cough/0026.wav",
-      "duration": 0.3722893582044526,
-      "start_time": 27.605748182969375,
-      "speaker_id": "4433"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005581.json b/conversations/conv_005581.json
deleted file mode 100644
index 8b44ccb62bc2407f9eaa4466fcf2295851333c2e..0000000000000000000000000000000000000000
--- a/conversations/conv_005581.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.01039622629474,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.986418871907592,
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-      "overlap": false,
-      "utterance_id": "1743-142913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142913.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.655236689909432,
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-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.957099819906965,
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-      "duration": 5.448587435600758,
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-      "duration_frames": 87177,
-      "overlap": false,
-      "utterance_id": "1743-142912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142912.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.639344112849283,
-      "end_time": 23.09548132495169,
-      "duration": 3.4561372121024068,
-      "start_frame": 314229,
-      "duration_frames": 55298,
-      "overlap": false,
-      "utterance_id": "448-135065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-135065.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.344561050976356,
-      "end_time": 29.78722206027321,
-      "duration": 5.442661009296853,
-      "start_frame": 389512,
-      "duration_frames": 87082,
-      "overlap": false,
-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 108970
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.294883614026126,
-      "end_time": 31.01039622629474,
-      "duration": 1.7155126122686148,
-      "start_frame": 468718,
-      "duration_frames": 27448,
-      "overlap": true,
-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 196052
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
-      "duration": 2.1073469387755104,
-      "start_time": 13.331709480314395
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7647/laugh/0026.wav",
-      "duration": 1.0280748130274626,
-      "start_time": 13.565119289774625,
-      "speaker_id": "7647"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7647/laugh/0091.wav",
-      "duration": 0.7709801109045644,
-      "start_time": 28.0676058676763,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7647/laugh/0064.wav",
-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "7647"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005597.json b/conversations/conv_005597.json
deleted file mode 100644
index 51751f87125ea935d392c130767cacd00cded485..0000000000000000000000000000000000000000
--- a/conversations/conv_005597.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.186640552716808,
-      "duration": 4.186640552716808,
-      "start_frame": 0,
-      "duration_frames": 66986,
-      "overlap": false,
-      "utterance_id": "228-133094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-133094.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.975219050404053,
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-      "duration": 4.964699986179275,
-      "start_frame": 79603,
-      "duration_frames": 79435,
-      "overlap": false,
-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.477701068780853,
-      "end_time": 14.502070955544752,
-      "duration": 4.024369886763899,
-      "start_frame": 167643,
-      "duration_frames": 64389,
-      "overlap": false,
-      "utterance_id": "228-131212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.724397952347193,
-      "end_time": 19.9904673078861,
-      "duration": 4.266069355538905,
-      "start_frame": 251590,
-      "duration_frames": 68257,
-      "overlap": false,
-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 79435
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.51514678366831,
-      "end_time": 25.289989967806513,
-      "duration": 4.774843184138202,
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-      "duration_frames": 76397,
-      "overlap": false,
-      "utterance_id": "228-121761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-121761.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 4.850718767513502,
-      "start_frame": 418155,
-      "duration_frames": 77611,
-      "overlap": false,
-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 147692
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.3777658794046,
-      "end_time": 32.0,
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-      "start_frame": 502044,
-      "duration_frames": 9955,
-      "overlap": false,
-      "utterance_id": "265-122594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-122594.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
-      "duration": 3.4292168108745025,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/228/laugh/0073.wav",
-      "duration": 1.04,
-      "start_time": 4.395717456549894,
-      "speaker_id": "228"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5000/laugh/0004.wav",
-      "duration": 1.24,
-      "start_time": 6.770958238721149,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/228/cough/0007.wav",
-      "duration": 1.3831427042187585,
-      "start_time": 14.595647336183088,
-      "speaker_id": "228"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5000/cough/0001.wav",
-      "duration": 0.44519836546352753,
-      "start_time": 20.040546332059588,
-      "speaker_id": "5000"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/228/cough/0134.wav",
-      "duration": 0.9402616291293284,
-      "start_time": 21.153567022212606,
-      "speaker_id": "228"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/265/laugh/0011.wav",
-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "265"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005606.json b/conversations/conv_005606.json
deleted file mode 100644
index fc8a0703d84b11c048e15d3cab1975e33999b24c..0000000000000000000000000000000000000000
--- a/conversations/conv_005606.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.050850301137062,
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-      "start_frame": 0,
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-      "utterance_id": "7688-112187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-112187.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.174084956878739,
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-      "overlap": false,
-      "utterance_id": "8580-287364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287364.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.29444827799065,
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-      "duration": 4.308873701719463,
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-      "overlap": false,
-      "utterance_id": "2312-147629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2312-147629.flac |",
-      "real_speaker_id": "2312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.54337295158062,
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-      "utterance_id": "2312-147629",
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-      "real_speaker_id": "2312",
-      "position_frames": 68941
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 84036
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_3.wav",
-      "duration": 2.520414999029286,
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-      "start_time": 25.305948549340666
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_005610.json b/conversations/conv_005610.json
deleted file mode 100644
index a243f11c1897224bd1a1c9c0382afe2c4dd1c299..0000000000000000000000000000000000000000
--- a/conversations/conv_005610.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.658034748384001,
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-      "start_frame": 0,
-      "duration_frames": 90528,
-      "overlap": false,
-      "utterance_id": "1342-130497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-130497.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.992030660406662,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-287671.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132466.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.47117035857731,
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-      "utterance_id": "1342-133248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133248.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.43736850694225,
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-      "overlap": true,
-      "utterance_id": "8545-287671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-287671.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 61373
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.834281391662323,
-      "end_time": 28.958156562207133,
-      "duration": 3.1238751705448093,
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-      "duration_frames": 49982,
-      "overlap": false,
-      "utterance_id": "1342-133248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133248.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 73917
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.590392094899443,
-      "end_time": 32.0,
-      "duration": 2.4096079051005574,
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-      "utterance_id": "8545-273050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005621.json b/conversations/conv_005621.json
deleted file mode 100644
index 8df7f9a089dfc10abad117fa65f4f4aa666b103e..0000000000000000000000000000000000000000
--- a/conversations/conv_005621.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.036502958217433,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.618498196844078,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60774.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.484266283936496,
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-      "overlap": false,
-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 60696
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.386251753439852,
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-      "utterance_id": "3738-176680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176680.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.38141608437751,
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-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 132703
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.049492769235815,
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-      "duration_frames": 79792,
-      "overlap": true,
-      "utterance_id": "3738-176680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176680.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 70122
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2815/cough/0097.wav",
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-      "start_time": 14.049312462820495,
-      "speaker_id": "2815"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3738/laugh/0093.wav",
-      "duration": 0.9151068414405232,
-      "start_time": 24.8698542213696,
-      "speaker_id": "3738"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005626.json b/conversations/conv_005626.json
deleted file mode 100644
index 667eff81247af0f8f1d1461abf8e857d9ab14576..0000000000000000000000000000000000000000
--- a/conversations/conv_005626.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.649892962774935,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1536-137608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1536-137608.flac |",
-      "real_speaker_id": "1536",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.306618165196957,
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-      "overlap": false,
-      "utterance_id": "7926-254949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254949.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.976397838799626,
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-      "overlap": false,
-      "utterance_id": "1536-137608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1536-137608.flac |",
-      "real_speaker_id": "1536",
-      "position_frames": 88157
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.72797770975,
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-      "duration_frames": 81734,
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-      "utterance_id": "7926-254948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "4156-12351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12351.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 35300,
-      "overlap": true,
-      "utterance_id": "4156-12155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_4.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7926/laugh/0022.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7926/laugh/0029.wav",
-      "duration": 1.0079217115799046,
-      "start_time": 19.125640159265735,
-      "speaker_id": "7926"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4156/laugh/0026.wav",
-      "duration": 1.16,
-      "start_time": 29.290274830868494,
-      "speaker_id": "4156"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4156/laugh/0119.wav",
-      "duration": 1.1804230075997846,
-      "start_time": 29.98311856978922,
-      "speaker_id": "4156"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005630.json b/conversations/conv_005630.json
deleted file mode 100644
index 8fa73701ee19de51fcc347ab79d9fe07d8edb684..0000000000000000000000000000000000000000
--- a/conversations/conv_005630.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.6361790546375676,
-      "duration": 3.6361790546375676,
-      "start_frame": 0,
-      "duration_frames": 58178,
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-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4310-14908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.86570760835117,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 63845
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.310432809925224,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.212141840674803,
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-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 58178
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 7.112498356628812,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4310/laugh/0046.wav",
-      "duration": 1.2272221639415535,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4310/laugh/0005.wav",
-      "duration": 0.6431241968937679,
-      "start_time": 18.999566298104536,
-      "speaker_id": "4310"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005637.json b/conversations/conv_005637.json
deleted file mode 100644
index 6651c7387fbae135b29468d340cb6403ebe5ed05..0000000000000000000000000000000000000000
--- a/conversations/conv_005637.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.775376082810567,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.235028453183042,
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-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.297757152126987,
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-      "utterance_id": "4948-28016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28016.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.878424197200776,
-      "end_time": 20.821211642438115,
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-      "overlap": false,
-      "utterance_id": "4280-185518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.783947312477114,
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-      "duration_frames": 77318,
-      "overlap": true,
-      "utterance_id": "4280-185518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 95084
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.784562532514848,
-      "end_time": 31.775376082810567,
-      "duration": 4.9908135502957185,
-      "start_frame": 428553,
-      "duration_frames": 79853,
-      "overlap": false,
-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "duration": 0.96,
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-      "event_class": "cough",
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-      "duration": 1.24,
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005647.json b/conversations/conv_005647.json
deleted file mode 100644
index 257b35e7216e12e69c9ab0c0dd37d443d41cc25e..0000000000000000000000000000000000000000
--- a/conversations/conv_005647.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6981-70843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
-      "real_speaker_id": "6981",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/720-173578.flac |",
-      "real_speaker_id": "720",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
-      "real_speaker_id": "6981",
-      "position_frames": 86771
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "720-173580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/720-173580.flac |",
-      "real_speaker_id": "720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.232714999387355,
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-      "duration": 5.517740357373341,
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-      "overlap": false,
-      "utterance_id": "6981-70843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
-      "real_speaker_id": "6981",
-      "position_frames": 180938
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.27826096634491,
-      "end_time": 32.0,
-      "duration": 1.7217390336550906,
-      "start_frame": 484452,
-      "duration_frames": 27547,
-      "overlap": false,
-      "utterance_id": "720-173579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/720-173579.flac |",
-      "real_speaker_id": "720",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "6981"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/720/laugh/0016.wav",
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-      "start_time": 8.440576515689354,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/720/laugh/0007.wav",
-      "duration": 0.7426960631842057,
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-    {
-      "event_class": "cough",
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-      "duration": 0.35978634321875097,
-      "start_time": 31.64021365678125,
-      "speaker_id": "720"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005651.json b/conversations/conv_005651.json
deleted file mode 100644
index 4024f22ac6eac86d3acc27236e29196a87e55da7..0000000000000000000000000000000000000000
--- a/conversations/conv_005651.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.019526025581399,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4327-9916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4327-9916.flac |",
-      "real_speaker_id": "4327",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.151327658588132,
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-      "utterance_id": "3845-8924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8924.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.938818187694986,
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-      "overlap": false,
-      "utterance_id": "4327-9916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4327-9916.flac |",
-      "real_speaker_id": "4327",
-      "position_frames": 48312
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.59938695129466,
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-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.238410811831976,
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-      "duration_frames": 87916,
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-      "utterance_id": "4327-4714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4327-4714.flac |",
-      "real_speaker_id": "4327",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.022964927253874,
-      "end_time": 32.0,
-      "duration": 2.9770350727461263,
-      "start_frame": 464367,
-      "duration_frames": 47632,
-      "overlap": false,
-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 85786
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3845/cough/0154.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1825/cough/0012.wav",
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-      "start_time": 22.118741235255435,
-      "speaker_id": "1825"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005660.json b/conversations/conv_005660.json
deleted file mode 100644
index 53d95299ce59df68d23ea6bf2a9bec5631fa5f25..0000000000000000000000000000000000000000
--- a/conversations/conv_005660.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.6937208246942035,
-      "duration": 4.6937208246942035,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113330.flac |",
-      "real_speaker_id": "8005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3068.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 28.005551516553716,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113330.flac |",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_005667.json b/conversations/conv_005667.json
deleted file mode 100644
index fd94e9df027807232ca23d48d4671df931185de6..0000000000000000000000000000000000000000
--- a/conversations/conv_005667.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8199-284020.flac |",
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-      "utterance_id": "8199-118869",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8199-118869.flac |",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_005671.json b/conversations/conv_005671.json
deleted file mode 100644
index 58b3110dad24bf574867cf3cc61efff8e3cfc4df..0000000000000000000000000000000000000000
--- a/conversations/conv_005671.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-293168.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_005676.json b/conversations/conv_005676.json
deleted file mode 100644
index 139fe12e145b9d44c974487fe52fa0c286531ebd..0000000000000000000000000000000000000000
--- a/conversations/conv_005676.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.454155192393348,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.9620176269695397,
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-      "segment_id": "seg0002",
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-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
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-      "position_frames": 61214
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2618/laugh/0102.wav",
-      "duration": 0.7466810798720215,
-      "start_time": 20.83449646077033,
-      "speaker_id": "2618"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005684.json b/conversations/conv_005684.json
deleted file mode 100644
index bcfe322f2243b31197ee4788c1b06deadf64429f..0000000000000000000000000000000000000000
--- a/conversations/conv_005684.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5675019951571514,
-      "duration": 3.5675019951571514,
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-      "overlap": false,
-      "utterance_id": "4280-185518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.065181126665102,
-      "end_time": 7.6799997358115615,
-      "duration": 3.6148186091464587,
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-      "utterance_id": "4280-185518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 57080
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.05571605832485,
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-      "duration": 6.395184178573707,
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-      "duration_frames": 102322,
-      "overlap": false,
-      "utterance_id": "5688-41232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-41232.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.92935932733586,
-      "end_time": 19.81764409805988,
-      "duration": 4.8882847707240185,
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-      "duration_frames": 78212,
-      "overlap": false,
-      "utterance_id": "4280-185518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 114917
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.662073004185558,
-      "end_time": 25.167463937461534,
-      "duration": 4.505390933275977,
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-      "overlap": false,
-      "utterance_id": "5688-41232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-41232.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 102322
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.983588792912165,
-      "end_time": 32.0,
-      "duration": 6.016411207087835,
-      "start_frame": 415737,
-      "duration_frames": 96262,
-      "overlap": false,
-      "utterance_id": "4280-185518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 193129
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 26.607777777777777,
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4280/laugh/0090.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5688/laugh/0009.wav",
-      "duration": 0.8,
-      "start_time": 7.165274707860576,
-      "speaker_id": "5688"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4280/cough/0091.wav",
-      "duration": 0.98,
-      "start_time": 24.913904704510237,
-      "speaker_id": "4280"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005688.json b/conversations/conv_005688.json
deleted file mode 100644
index 30bd16269c248e973cf891f407393f91fb996af7..0000000000000000000000000000000000000000
--- a/conversations/conv_005688.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.51324463620843,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "4441-76250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76250.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.76741803190508,
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-      "utterance_id": "7215-91630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 89598
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.26596121477254,
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-      "duration": 5.842187835801561,
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-      "duration_frames": 93475,
-      "overlap": false,
-      "utterance_id": "4441-76250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76250.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 64396
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.37466145005412,
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-      "utterance_id": "7215-91630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 186078
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7215/laugh/0091.wav",
-      "duration": 1.12,
-      "start_time": 0,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7215/cough/0090.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005692.json b/conversations/conv_005692.json
deleted file mode 100644
index 40306a5ee478efb7bf593b1e480ab341c8ee7376..0000000000000000000000000000000000000000
--- a/conversations/conv_005692.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-8675.flac |",
-      "real_speaker_id": "5876",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-61422.flac |",
-      "real_speaker_id": "5139",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1903-132499",
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-      "position_frames": 68775
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "5139",
-      "position_frames": 0
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_005699.json b/conversations/conv_005699.json
deleted file mode 100644
index 63972ea01fbb56041d13c37e0ab645c3208bf795..0000000000000000000000000000000000000000
--- a/conversations/conv_005699.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6777-76701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76701.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "6777-76694",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_005702.json b/conversations/conv_005702.json
deleted file mode 100644
index 9860c4f7c0b7194211aed8d2da64df35c77f0bdc..0000000000000000000000000000000000000000
--- a/conversations/conv_005702.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.752641585077,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.563552466766523,
-      "duration": 4.563552466766523,
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-      "overlap": false,
-      "utterance_id": "8575-290350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290350.flac |",
-      "real_speaker_id": "8575",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.819276774967905,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
-      "real_speaker_id": "614",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-26876.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.32720596154544,
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-      "utterance_id": "6370-26876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-26876.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 70431
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.192461145246988,
-      "end_time": 29.226750844930557,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 75931
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "8575-290349",
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-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_005709.json b/conversations/conv_005709.json
deleted file mode 100644
index 7bffe7d8065940926df3d961fc5c6d5379a9c505..0000000000000000000000000000000000000000
--- a/conversations/conv_005709.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7402-59171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-59171.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.7583641234352,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-90848.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-158816.flac |",
-      "real_speaker_id": "667",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5412-39899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.794654821541123,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 51477
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.124216921842443,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "667-105002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
-      "real_speaker_id": "667",
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005714.json b/conversations/conv_005714.json
deleted file mode 100644
index 1dbf447acc734719f545705d74d4eaad41b62f94..0000000000000000000000000000000000000000
--- a/conversations/conv_005714.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6741-253244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253244.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-79958.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "2946",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6741-79958",
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-      "real_speaker_id": "6741",
-      "position_frames": 111042
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6741/laugh/0019.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6741/cough/0047.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005718.json b/conversations/conv_005718.json
deleted file mode 100644
index 4e643990333958543538c51f6e33b653a8d2a576..0000000000000000000000000000000000000000
--- a/conversations/conv_005718.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.68461467601329,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102367.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-154321.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 20.254317181001262,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102367.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 148939
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-61317.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_005719.json b/conversations/conv_005719.json
deleted file mode 100644
index bcd1a0cec9656150534a23ef10fd96b7b68d63e2..0000000000000000000000000000000000000000
--- a/conversations/conv_005719.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-292560.flac |",
-      "real_speaker_id": "8664",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109876.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-295007.flac |",
-      "real_speaker_id": "8664",
-      "position_frames": 70661
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7177-120275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-120275.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-      "duration": 1.16,
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005722.json b/conversations/conv_005722.json
deleted file mode 100644
index a04ee0ffc9cc5e94b5bc4482eecaa4c664216e11..0000000000000000000000000000000000000000
--- a/conversations/conv_005722.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "208-128036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-128036.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126600.flac |",
-      "real_speaker_id": "208",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5635-53458.flac |",
-      "real_speaker_id": "5635",
-      "position_frames": 0
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-      "real_speaker_id": "208",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5635-44582.flac |",
-      "real_speaker_id": "5635",
-      "position_frames": 0
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-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "start_time": 31.472873363737598,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-124554.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 60452
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/208/laugh/0056.wav",
-      "duration": 1.92,
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-      "speaker_id": "208"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/208/laugh/0008.wav",
-      "duration": 1.0655896879052582,
-      "start_time": 19.021209924164168,
-      "speaker_id": "208"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "5635"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "5635"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6853/cough/0009.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "6853"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005725.json b/conversations/conv_005725.json
deleted file mode 100644
index bb597677f4e4b89729dd6c08f147214ec47438a8..0000000000000000000000000000000000000000
--- a/conversations/conv_005725.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2148-6979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6979.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7750856721883737,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139290.flac |",
-      "real_speaker_id": "1425",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "2148-6984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6984.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.21622295431181,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
-      "real_speaker_id": "8443",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "1425",
-      "position_frames": 73930
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "1425-139297",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139297.flac |",
-      "real_speaker_id": "1425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.097093537970668,
-      "end_time": 32.0,
-      "duration": 2.902906462029332,
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-      "duration_frames": 46446,
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-      "utterance_id": "8443-294707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 97298
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 0.9100214843446617
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1425/laugh/0003.wav",
-      "duration": 0.88,
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1425/laugh/0057.wav",
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-      "speaker_id": "1425"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005733.json b/conversations/conv_005733.json
deleted file mode 100644
index dd6660a0347fa27b0c902ecee4445e2abaadf2ec..0000000000000000000000000000000000000000
--- a/conversations/conv_005733.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.75631586223393,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.956420262179,
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-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.216518517598498,
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-      "utterance_id": "5290-26685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-26685.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.81090374846552,
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-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 88815
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 67294
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.848847866386897,
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-      "duration": 1.907467995847032,
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-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 184579
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_0.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/454/laugh/0066.wav",
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-    {
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "start_time": 28.349194831680567,
-      "speaker_id": "454"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005734.json b/conversations/conv_005734.json
deleted file mode 100644
index b9893051d92eecce51641e6c3ea99765e30d561f..0000000000000000000000000000000000000000
--- a/conversations/conv_005734.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7691",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 61054
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.364884865720303,
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-      "utterance_id": "7691-293948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-293948.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 93716
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7395-89882.flac |",
-      "real_speaker_id": "7395",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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\ No newline at end of file
diff --git a/conversations/conv_005738.json b/conversations/conv_005738.json
deleted file mode 100644
index 757e2dcdef0b0ed561ce5b0dcd5d98aaaecbbe6f..0000000000000000000000000000000000000000
--- a/conversations/conv_005738.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34619.flac |",
-      "real_speaker_id": "6377",
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005743.json b/conversations/conv_005743.json
deleted file mode 100644
index 95a34128ee6c214e84cd57614bea872079e0b05b..0000000000000000000000000000000000000000
--- a/conversations/conv_005743.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.396297832425486,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "6454-120342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-120342.flac |",
-      "real_speaker_id": "6454",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5970-54413",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/laugh/0033.wav",
-      "duration": 0.5357547673947654,
-      "start_time": 11.436500133062724,
-      "speaker_id": "5970"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6454/laugh/0077.wav",
-      "duration": 0.6360200190207723,
-      "start_time": 28.107728618599204,
-      "speaker_id": "6454"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005755.json b/conversations/conv_005755.json
deleted file mode 100644
index a21e4a6f6e7f86061da8d02611b2fa2f3316166f..0000000000000000000000000000000000000000
--- a/conversations/conv_005755.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.52836685374627,
-      "duration": 6.52836685374627,
-      "start_frame": 0,
-      "duration_frames": 104453,
-      "overlap": false,
-      "utterance_id": "6950-86822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86822.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.714102235841494,
-      "end_time": 11.496612580373856,
-      "duration": 4.782510344532363,
-      "start_frame": 107425,
-      "duration_frames": 76520,
-      "overlap": false,
-      "utterance_id": "5038-56723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-56723.flac |",
-      "real_speaker_id": "5038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.651336891361058,
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-      "duration": 4.581867110342817,
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-      "duration_frames": 73309,
-      "overlap": false,
-      "utterance_id": "6950-86713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86713.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.033682931546945,
-      "end_time": 23.267354000742625,
-      "duration": 5.233671069195679,
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-      "overlap": false,
-      "utterance_id": "5038-31917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-31917.flac |",
-      "real_speaker_id": "5038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.472666044541022,
-      "end_time": 27.901907118542532,
-      "duration": 4.429241074001508,
-      "start_frame": 375562,
-      "duration_frames": 70867,
-      "overlap": false,
-      "utterance_id": "6950-86822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86822.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 104453
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.710095637598414,
-      "end_time": 32.0,
-      "duration": 3.289904362401586,
-      "start_frame": 459361,
-      "duration_frames": 52638,
-      "overlap": false,
-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
-      "duration": 3.294148066638494,
-      "start_time": 19.167726463723813
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
-      "duration": 4.434503862884132,
-      "start_time": 12.696385651950758
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6950/cough/0047.wav",
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-      "start_time": 0,
-      "speaker_id": "6950"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5038/cough/0063.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6950/laugh/0136.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6950/cough/0075.wav",
-      "duration": 1.3040509800407067,
-      "start_time": 17.36408765857991,
-      "speaker_id": "6950"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5038/laugh/0032.wav",
-      "duration": 0.8271368162132433,
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-      "speaker_id": "5038"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6950/laugh/0048.wav",
-      "duration": 1.4,
-      "start_time": 21.956346168032617,
-      "speaker_id": "6950"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005759.json b/conversations/conv_005759.json
deleted file mode 100644
index f0d248904f8460b08532607a8467235cfcfb3110..0000000000000000000000000000000000000000
--- a/conversations/conv_005759.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.540465014084707,
-      "duration": 3.540465014084707,
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-      "duration_frames": 56647,
-      "overlap": false,
-      "utterance_id": "7463-99909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-99909.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.9565034279625357,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.659216233332304,
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-      "utterance_id": "7463-96494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-96494.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.580794544830976,
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-      "overlap": false,
-      "utterance_id": "6918-47541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 64251
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.87644871190944,
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-      "duration": 5.100208843674328,
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-      "utterance_id": "7463-99912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-99912.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.810347592311896,
-      "end_time": 29.858150365707168,
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-      "start_frame": 380965,
-      "duration_frames": 96764,
-      "overlap": false,
-      "utterance_id": "7691-108625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-108625.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.44364168564447,
-      "end_time": 32.0,
-      "duration": 1.5563583143555313,
-      "start_frame": 487098,
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-      "utterance_id": "6918-47541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 132034
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
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-      "start_time": 14.540697604135564
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6918/laugh/0057.wav",
-      "duration": 1.32,
-      "start_time": 12.002887763439054,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7691/cough/0115.wav",
-      "duration": 0.8716546842508328,
-      "start_time": 29.918819489785985,
-      "speaker_id": "7691"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005763.json b/conversations/conv_005763.json
deleted file mode 100644
index de72aca594ee3871de9120d25ec83bf1f003c9d5..0000000000000000000000000000000000000000
--- a/conversations/conv_005763.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.905525311280602,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6912-70847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-119253.flac |",
-      "real_speaker_id": "231",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7059-88364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-88364.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.625175440470896,
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-      "utterance_id": "231-127936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-127936.flac |",
-      "real_speaker_id": "231",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6912-70845",
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-      "real_speaker_id": "6912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.70003521397252,
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-      "duration": 3.703911892113577,
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-      "duration_frames": 59262,
-      "overlap": false,
-      "utterance_id": "7059-77897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77897.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.977771915028118,
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-      "duration_frames": 62844,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77897.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 59262
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7059/cough/0063.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7059/laugh/0016.wav",
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-      "start_time": 22.413956498880268,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7059/laugh/0076.wav",
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-      "start_time": 30.377815473555053,
-      "speaker_id": "7059"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005764.json b/conversations/conv_005764.json
deleted file mode 100644
index 9060c75d572f69d9c387a9c7320883f4aeec9a4d..0000000000000000000000000000000000000000
--- a/conversations/conv_005764.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6037-59234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59234.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "6111",
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-      "utterance_id": "298-126791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126791.flac |",
-      "real_speaker_id": "298",
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-    {
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-    {
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-      "utterance_id": "6037-59239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59239.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.946953243805787,
-      "end_time": 32.0,
-      "duration": 5.053046756194213,
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-      "utterance_id": "298-126790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126790.flac |",
-      "real_speaker_id": "298",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6037/cough/0015.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "6037"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/298/laugh/0100.wav",
-      "duration": 1.0834123856817157,
-      "start_time": 15.534694556314637,
-      "speaker_id": "298"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/298/cough/0109.wav",
-      "duration": 1.14652761055034,
-      "start_time": 10.873041429775501,
-      "speaker_id": "298"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005772.json b/conversations/conv_005772.json
deleted file mode 100644
index f5bb7610c26ee9d01eba04a6213193098dd7f0a5..0000000000000000000000000000000000000000
--- a/conversations/conv_005772.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.82432007890388,
-      "duration": 3.82432007890388,
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-      "overlap": false,
-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.007493946120228,
-      "end_time": 8.626079285228059,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-4136.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.1485042246898,
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-      "overlap": false,
-      "utterance_id": "3172-166439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
-      "real_speaker_id": "3172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.429779233894381,
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-      "overlap": false,
-      "utterance_id": "2816-156159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-156159.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.78528675583599,
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-      "overlap": false,
-      "utterance_id": "3172-166439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
-      "real_speaker_id": "3172",
-      "position_frames": 81214
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.01839180051529,
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-      "duration": 3.0360673371945595,
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-      "duration_frames": 48577,
-      "overlap": true,
-      "utterance_id": "2816-156159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-156159.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 66724
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.76205053508478,
-      "end_time": 32.0,
-      "duration": 3.2379494649152214,
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-      "utterance_id": "3172-166439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
-      "real_speaker_id": "3172",
-      "position_frames": 157615
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "1828"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3172/laugh/0095.wav",
-      "duration": 1.2068787869268065,
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-    {
-      "event_class": "cough",
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-      "duration": 0.3877823612931097,
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-      "speaker_id": "2816"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005775.json b/conversations/conv_005775.json
deleted file mode 100644
index ed13d73d7cc2c735cb421c643ce9b1ee9efa010f..0000000000000000000000000000000000000000
--- a/conversations/conv_005775.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.792813997296772,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2292-150689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150689.flac |",
-      "real_speaker_id": "2292",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.07556356049788,
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-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.302646761499602,
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-      "overlap": false,
-      "utterance_id": "2292-150679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150679.flac |",
-      "real_speaker_id": "2292",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.883237452489666,
-      "end_time": 20.79106019054226,
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-      "duration_frames": 62525,
-      "overlap": false,
-      "utterance_id": "4172-25907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-25907.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.031671469788005,
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-      "utterance_id": "2292-150689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150689.flac |",
-      "real_speaker_id": "2292",
-      "position_frames": 86679
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.994850465080084,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-185480.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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-      "speaker_id": "2292"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005779.json b/conversations/conv_005779.json
deleted file mode 100644
index 5e52d9258d408222a61044d6666c9b0f5f376c84..0000000000000000000000000000000000000000
--- a/conversations/conv_005779.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4667-102196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 91685
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 102954
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7481-101276",
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-      "real_speaker_id": "7481",
-      "position_frames": 141267
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/cough/0005.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/laugh/0097.wav",
-      "duration": 1.52,
-      "start_time": 28.582388704446686,
-      "speaker_id": "4667"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005780.json b/conversations/conv_005780.json
deleted file mode 100644
index 0baa7e3e60f110bcf45d6b9d57390a6fac42d6ed..0000000000000000000000000000000000000000
--- a/conversations/conv_005780.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.58336603127574,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.672666170253204,
-      "duration": 5.672666170253204,
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-      "duration_frames": 90762,
-      "overlap": false,
-      "utterance_id": "2553-163730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163730.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.466813407883467,
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-      "utterance_id": "2436-2476",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2476.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2553-163728",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7079",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2477.flac |",
-      "real_speaker_id": "2436",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-2333.flac |",
-      "real_speaker_id": "7079",
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2553/cough/0087.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "2436"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005796.json b/conversations/conv_005796.json
deleted file mode 100644
index 86d4828aa30d1de7af64eded8a1bdc498f8a3a81..0000000000000000000000000000000000000000
--- a/conversations/conv_005796.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5636-41795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41795.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.242284049694997,
-      "end_time": 12.654873806464495,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-296078.flac |",
-      "real_speaker_id": "8677",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 13.742811128307554,
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-      "overlap": false,
-      "utterance_id": "4205-11977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.029659696702428,
-      "end_time": 25.250788123945092,
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-      "start_frame": 320474,
-      "duration_frames": 83538,
-      "overlap": false,
-      "utterance_id": "5636-41795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41795.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 87329
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.88052325998536,
-      "end_time": 31.082745429719402,
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-      "overlap": false,
-      "utterance_id": "8677-246948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-246948.flac |",
-      "real_speaker_id": "8677",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.60066879964362,
-      "end_time": 32.0,
-      "duration": 0.3993312003563787,
-      "start_frame": 505610,
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-      "overlap": false,
-      "utterance_id": "5636-41792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41792.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
-      "duration": 2.168705661505665,
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-      "event_class": "Alarm_bell_ringing",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_005807.json b/conversations/conv_005807.json
deleted file mode 100644
index 48abaa66d73fd791a3958452421ae3f49caa7386..0000000000000000000000000000000000000000
--- a/conversations/conv_005807.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7708-290368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-290368.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.3315622751243605,
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-      "utterance_id": "32-21625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21625.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "7708-296091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-296091.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.85804320482001,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-290368.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 110630
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "32-21625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21625.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 68724
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.539543519442116,
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-      "utterance_id": "5983-39666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39666.flac |",
-      "real_speaker_id": "5983",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "5983"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005811.json b/conversations/conv_005811.json
deleted file mode 100644
index f485606f8238e2865217fdb04eba677cae915cfe..0000000000000000000000000000000000000000
--- a/conversations/conv_005811.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4218-41159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41159.flac |",
-      "real_speaker_id": "4218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.081539646899187,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36617.flac |",
-      "real_speaker_id": "2764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4218-41159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41159.flac |",
-      "real_speaker_id": "4218",
-      "position_frames": 87741
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "2764-36616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36616.flac |",
-      "real_speaker_id": "2764",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "1552",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2764-36619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36619.flac |",
-      "real_speaker_id": "2764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005826.json b/conversations/conv_005826.json
deleted file mode 100644
index a390aed73472ec515b65020cf3126ad41bf2e426..0000000000000000000000000000000000000000
--- a/conversations/conv_005826.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1734-142311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
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-      "position_frames": 111847
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-      "segment_id": "seg0003",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1734/laugh/0068.wav",
-      "duration": 1.48,
-      "start_time": 22.82580319989236,
-      "speaker_id": "1734"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1734/laugh/0001.wav",
-      "duration": 1.08,
-      "start_time": 30.394498939390893,
-      "speaker_id": "1734"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005827.json b/conversations/conv_005827.json
deleted file mode 100644
index 10911140437389e7d6dc8dd585bba16cb0ea765c..0000000000000000000000000000000000000000
--- a/conversations/conv_005827.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.10566706900548,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3967-29012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-29012.flac |",
-      "real_speaker_id": "3967",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "start_time": 4.9400675592009495,
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-      "real_speaker_id": "4955",
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-      "real_speaker_id": "3967",
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-      "speaker_id": "3967"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005831.json b/conversations/conv_005831.json
deleted file mode 100644
index 3c0653fa3a1b3df074d81d3326bd852d71e3b346..0000000000000000000000000000000000000000
--- a/conversations/conv_005831.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278846.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
-      "real_speaker_id": "8143",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
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-    {
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-      "utterance_id": "6399-278849",
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\ No newline at end of file
diff --git a/conversations/conv_005846.json b/conversations/conv_005846.json
deleted file mode 100644
index a403db35fac16220a762c62dbcde730e55944a01..0000000000000000000000000000000000000000
--- a/conversations/conv_005846.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
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-      "real_speaker_id": "5252",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-  "foreground_events": [
-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/166/laugh/0006.wav",
-      "duration": 0.6050372021797696,
-      "start_time": 0.8038170841860883,
-      "speaker_id": "166"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/166/laugh/0045.wav",
-      "duration": 0.96,
-      "start_time": 20.74846389711327,
-      "speaker_id": "166"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005850.json b/conversations/conv_005850.json
deleted file mode 100644
index fe6fb3c0653bec3515319966ad8d4d2d2fb54021..0000000000000000000000000000000000000000
--- a/conversations/conv_005850.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.231823815490106,
-      "duration": 4.231823815490106,
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-      "overlap": false,
-      "utterance_id": "6818-68772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.6267319267241405,
-      "end_time": 10.505241500820564,
-      "duration": 5.878509574096423,
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-      "duration_frames": 94056,
-      "overlap": true,
-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.57175895240783,
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-      "overlap": false,
-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.388811254390323,
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-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 94056
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.923685400379895,
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-      "overlap": false,
-      "utterance_id": "6818-76332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.281890876453154,
-      "end_time": 32.0,
-      "duration": 3.7181091235468458,
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-      "overlap": false,
-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 160931
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
-      "duration": 17.10052839119387,
-      "start_time": 12.019662454143585
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.5656352909576823,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.9874036778503665,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6371/laugh/0081.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6371/laugh/0076.wav",
-      "duration": 0.8770581476122327,
-      "start_time": 19.636678505085257,
-      "speaker_id": "6371"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6818/laugh/0068.wav",
-      "duration": 1.0,
-      "start_time": 25.44456391780089,
-      "speaker_id": "6818"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6818/cough/0053.wav",
-      "duration": 0.7847672594110926,
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-      "speaker_id": "6818"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6371/laugh/0062.wav",
-      "duration": 1.1723405133334805,
-      "start_time": 28.918123283588816,
-      "speaker_id": "6371"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005866.json b/conversations/conv_005866.json
deleted file mode 100644
index eff407c9c11f078f38c4b05a73e1c23c33993b1e..0000000000000000000000000000000000000000
--- a/conversations/conv_005866.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.510996562790105,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 99150
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.258247578843221,
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-      "overlap": false,
-      "utterance_id": "8534-216564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216564.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.519165218139854,
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-      "duration": 6.294863308417796,
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-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 165317
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.699057159079665,
-      "end_time": 28.56074469961156,
-      "duration": 4.8616875405318964,
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-      "duration_frames": 77787,
-      "overlap": false,
-      "utterance_id": "8534-216564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216564.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 66785
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.650034225993533,
-      "end_time": 32.0,
-      "duration": 2.349965774006467,
-      "start_frame": 474400,
-      "duration_frames": 37599,
-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 266034
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-      "start_time": 0.06077854946385494
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "start_time": 25.017014419403218
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
-      "duration": 1.4938984140011708,
-      "start_time": 10.81956776572018
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2127/laugh/0024.wav",
-      "duration": 1.2,
-      "start_time": 30.4419204999087,
-      "speaker_id": "2127"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2127/cough/0039.wav",
-      "duration": 0.6809425401394393,
-      "start_time": 28.85209527614386,
-      "speaker_id": "2127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005870.json b/conversations/conv_005870.json
deleted file mode 100644
index 66ff70d20621974e03acfe5a50559761f42c3f65..0000000000000000000000000000000000000000
--- a/conversations/conv_005870.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6272-70171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70171.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6272-70171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70171.flac |",
-      "real_speaker_id": "6272",
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-      "utterance_id": "2368-157057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157057.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.671882826982747,
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-      "overlap": false,
-      "utterance_id": "7756-287863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-287863.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.47194539999716,
-      "end_time": 24.120790563243062,
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-      "utterance_id": "2368-157057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157057.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 67366
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.649200298603116,
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-      "duration_frames": 66256,
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-      "utterance_id": "7756-84187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-84187.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.9179409864865,
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-      "real_speaker_id": "6272",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "7756"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005871.json b/conversations/conv_005871.json
deleted file mode 100644
index 327a6e96997e1493a234bf184effcc0b7fb8553f..0000000000000000000000000000000000000000
--- a/conversations/conv_005871.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7312",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7665-104979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7665-104979.flac |",
-      "real_speaker_id": "7665",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7665/laugh/0016.wav",
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\ No newline at end of file
diff --git a/conversations/conv_005885.json b/conversations/conv_005885.json
deleted file mode 100644
index a64865267d42ef2555fa41c3572031cf241ab22b..0000000000000000000000000000000000000000
--- a/conversations/conv_005885.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-1061.flac |",
-      "real_speaker_id": "1430",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
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-      "utterance_id": "1430-1061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-1061.flac |",
-      "real_speaker_id": "1430",
-      "position_frames": 100484
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.164303518038707,
-      "end_time": 25.127540967232417,
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-      "overlap": false,
-      "utterance_id": "1081-125237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-125237.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.32885116904528,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-1061.flac |",
-      "real_speaker_id": "1430",
-      "position_frames": 175566
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1081-128618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 97335
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_005889.json b/conversations/conv_005889.json
deleted file mode 100644
index 31b427a9151610ff07b364e50683b284c203259c..0000000000000000000000000000000000000000
--- a/conversations/conv_005889.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-232057.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-61323.flac |",
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-      "real_speaker_id": "4563",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.871739815095935,
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-      "overlap": false,
-      "utterance_id": "6458-61323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-61323.flac |",
-      "real_speaker_id": "6458",
-      "position_frames": 79598
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2185-150123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_005893.json b/conversations/conv_005893.json
deleted file mode 100644
index c2b39464912609e82493e418567295ba78b02a5f..0000000000000000000000000000000000000000
--- a/conversations/conv_005893.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_frame": 0,
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-      "utterance_id": "4137-11702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4137-11702.flac |",
-      "real_speaker_id": "4137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.0308225248668235,
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-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4137-11702.flac |",
-      "real_speaker_id": "4137",
-      "position_frames": 101348
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "5867",
-      "position_frames": 77552
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "4137",
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "6373-65772",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005903.json b/conversations/conv_005903.json
deleted file mode 100644
index e46be9db96c1d3bc94a538c042ae635a3e70e33f..0000000000000000000000000000000000000000
--- a/conversations/conv_005903.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8262-279161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "7265",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
-      "position_frames": 88935
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-    {
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-      "overlap": false,
-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8262-279161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
-      "position_frames": 190590
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.878583988112144,
-      "end_time": 32.0,
-      "duration": 3.121416011887856,
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-      "overlap": false,
-      "utterance_id": "7265-74923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7265-74923.flac |",
-      "real_speaker_id": "7265",
-      "position_frames": 82669
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 1.8288482101641548,
-      "start_time": 20.45247391710669
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "8262"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8262/laugh/0053.wav",
-      "duration": 0.6833348755767754,
-      "start_time": 18.89342595340435,
-      "speaker_id": "8262"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8262/laugh/0068.wav",
-      "duration": 1.52,
-      "start_time": 25.77443963878138,
-      "speaker_id": "8262"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7265/laugh/0015.wav",
-      "duration": 1.04,
-      "start_time": 27.63369271735359,
-      "speaker_id": "7265"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005908.json b/conversations/conv_005908.json
deleted file mode 100644
index 028c98268173cff32ce37733589e0bd4a262efb9..0000000000000000000000000000000000000000
--- a/conversations/conv_005908.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.35499362159703,
-      "duration": 4.35499362159703,
-      "start_frame": 0,
-      "duration_frames": 69679,
-      "overlap": false,
-      "utterance_id": "2053-138901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138901.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.526546462037034,
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-      "duration_frames": 105637,
-      "overlap": false,
-      "utterance_id": "3857-180923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.970481917943436,
-      "end_time": 17.495006875482854,
-      "duration": 6.524524957539419,
-      "start_frame": 175527,
-      "duration_frames": 104392,
-      "overlap": true,
-      "utterance_id": "2053-138888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.35531362848092,
-      "end_time": 24.838896095086817,
-      "duration": 6.483582466605897,
-      "start_frame": 293685,
-      "duration_frames": 103737,
-      "overlap": true,
-      "utterance_id": "2053-138888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 104392
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.433807243368744,
-      "end_time": 29.789853928351214,
-      "duration": 4.35604668498247,
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-      "duration_frames": 69696,
-      "overlap": false,
-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.346803041107684,
-      "end_time": 32.0,
-      "duration": 1.653196958892316,
-      "start_frame": 485548,
-      "duration_frames": 26451,
-      "overlap": false,
-      "utterance_id": "3857-182315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182315.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2053/laugh/0108.wav",
-      "duration": 1.1669437463921457,
-      "start_time": 16.079411692127643,
-      "speaker_id": "2053"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005915.json b/conversations/conv_005915.json
deleted file mode 100644
index 9351bec6fc641f1f45e47d7cd07f0136a88511ba..0000000000000000000000000000000000000000
--- a/conversations/conv_005915.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.524239702297855,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.49762822710412,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2491-134787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
-      "real_speaker_id": "2491",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.811055703292207,
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-      "overlap": false,
-      "utterance_id": "737-123448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.921333830808518,
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-      "start_frame": 174741,
-      "duration_frames": 51707,
-      "overlap": false,
-      "utterance_id": "8499-256247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8499-256247.flac |",
-      "real_speaker_id": "8499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.699692258209506,
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-      "duration": 5.609361854844598,
-      "start_frame": 235195,
-      "duration_frames": 89749,
-      "overlap": false,
-      "utterance_id": "737-123448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 75751
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.496923013062833,
-      "end_time": 26.94518468483475,
-      "duration": 6.448261671771915,
-      "start_frame": 327950,
-      "duration_frames": 103172,
-      "overlap": false,
-      "utterance_id": "2491-134787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
-      "real_speaker_id": "2491",
-      "position_frames": 87962
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.585004345142927,
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-      "duration": 3.939235357154928,
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-      "duration_frames": 63027,
-      "overlap": false,
-      "utterance_id": "737-123441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "start_time": 12.785914916083675
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/737/cough/0101.wav",
-      "duration": 0.9667971928251078,
-      "start_time": 17.608490103956417,
-      "speaker_id": "737"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005918.json b/conversations/conv_005918.json
deleted file mode 100644
index f9450dc12dff44d89afd130c02a4d3a159cae851..0000000000000000000000000000000000000000
--- a/conversations/conv_005918.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.447571391430202,
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-      "start_frame": 0,
-      "duration_frames": 71161,
-      "overlap": false,
-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.829747285040356,
-      "end_time": 9.262581934985452,
-      "duration": 4.432834649945096,
-      "start_frame": 77275,
-      "duration_frames": 70925,
-      "overlap": true,
-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 71161
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.988010186038444,
-      "end_time": 13.263480878620268,
-      "duration": 3.2754706925818233,
-      "start_frame": 159808,
-      "duration_frames": 52407,
-      "overlap": false,
-      "utterance_id": "4830-25898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4830-25898.flac |",
-      "real_speaker_id": "4830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.807549453930122,
-      "end_time": 19.869270937314816,
-      "duration": 6.061721483384696,
-      "start_frame": 220920,
-      "duration_frames": 96987,
-      "overlap": false,
-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 142086
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.41153535922424,
-      "end_time": 23.147530568313815,
-      "duration": 3.7359952090895776,
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-      "duration_frames": 59775,
-      "overlap": true,
-      "utterance_id": "7498-99124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99124.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.424928304061737,
-      "end_time": 30.086061133566247,
-      "duration": 5.66113282950451,
-      "start_frame": 390798,
-      "duration_frames": 90578,
-      "overlap": true,
-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 239073
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.39068778733822,
-      "end_time": 32.0,
-      "duration": 0.6093122126617807,
-      "start_frame": 502251,
-      "duration_frames": 9748,
-      "overlap": false,
-      "utterance_id": "4830-25898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4830-25898.flac |",
-      "real_speaker_id": "4830",
-      "position_frames": 52407
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_7.wav",
-      "duration": 0.5903174603174604,
-      "start_time": 24.46829707406953
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4138/laugh/0028.wav",
-      "duration": 0.92,
-      "start_time": 6.8519613431917366,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4830/laugh/0006.wav",
-      "duration": 1.24,
-      "start_time": 13.504555188768453,
-      "speaker_id": "4830"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4138/laugh/0073.wav",
-      "duration": 1.24,
-      "start_time": 17.286319533999016,
-      "speaker_id": "4138"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4830/laugh/0003.wav",
-      "duration": 0.7961388867802561,
-      "start_time": 31.203861113219745,
-      "speaker_id": "4830"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4830/cough/0071.wav",
-      "duration": 0.838408790133484,
-      "start_time": 30.40645064856699,
-      "speaker_id": "4830"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005919.json b/conversations/conv_005919.json
deleted file mode 100644
index d869fbc057a6d6c9de00b1d29790d4857dfb31be..0000000000000000000000000000000000000000
--- a/conversations/conv_005919.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5938834935701873,
-      "duration": 3.5938834935701873,
-      "start_frame": 0,
-      "duration_frames": 57502,
-      "overlap": false,
-      "utterance_id": "3607-29116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-29116.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.248180616396167,
-      "end_time": 9.964464804856362,
-      "duration": 5.716284188460196,
-      "start_frame": 67970,
-      "duration_frames": 91460,
-      "overlap": false,
-      "utterance_id": "979-128670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/979-128670.flac |",
-      "real_speaker_id": "979",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.282070638203322,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-135982.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.736520236147303,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137141.flac |",
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-      "position_frames": 64342
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.452831927201146,
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-      "duration": 0.5471680727988542,
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-      "utterance_id": "984-137154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137154.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/984/laugh/0037.wav",
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-      "speaker_id": "984"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005923.json b/conversations/conv_005923.json
deleted file mode 100644
index 6b5e26970b08e8b31577e37a0a0c497b4e758fb1..0000000000000000000000000000000000000000
--- a/conversations/conv_005923.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.1351469095607865,
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-      "overlap": false,
-      "utterance_id": "3244-10691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10691.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.69187183688977,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
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-      "position_frames": 0
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-      "utterance_id": "3244-174926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-174926.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107338.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107338.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 73501
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3244-10692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10692.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.9338166151352,
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-      "utterance_id": "4018-107338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107338.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_005934.json b/conversations/conv_005934.json
deleted file mode 100644
index c268fd02f92388fe495fb8f5e2fba2edef0cb63e..0000000000000000000000000000000000000000
--- a/conversations/conv_005934.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "157-121899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-121899.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161975.flac |",
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-      "real_speaker_id": "7540",
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-      "speaker_id": 0,
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-      "utterance_id": "157-126796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-126796.flac |",
-      "real_speaker_id": "157",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 23327,
-      "overlap": false,
-      "utterance_id": "7540-101258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101258.flac |",
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-      "position_frames": 70158
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-  "background_events": [
-    {
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-      "speaker_id": "1923"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005935.json b/conversations/conv_005935.json
deleted file mode 100644
index 7b8cdca1c7fe933aec9e4694b367f8bed609b93c..0000000000000000000000000000000000000000
--- a/conversations/conv_005935.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "850-131003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131003.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "1280",
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-      "segment_id": "seg0002",
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-      "utterance_id": "850-131003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131003.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1280/cough/0052.wav",
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-      "start_time": 12.19611914293801,
-      "speaker_id": "1280"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/850/laugh/0044.wav",
-      "duration": 0.6115686848936865,
-      "start_time": 11.419731135809283,
-      "speaker_id": "850"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005939.json b/conversations/conv_005939.json
deleted file mode 100644
index 5eee4ec4a4b43284f08b12e0aac1e214e6f203d8..0000000000000000000000000000000000000000
--- a/conversations/conv_005939.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.476360255949238,
-      "duration": 6.476360255949238,
-      "start_frame": 0,
-      "duration_frames": 103621,
-      "overlap": false,
-      "utterance_id": "7423-89169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89169.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.696017958167713,
-      "end_time": 11.704259856168026,
-      "duration": 5.008241898000313,
-      "start_frame": 107136,
-      "duration_frames": 80131,
-      "overlap": false,
-      "utterance_id": "3654-171139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171139.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.484542457765453,
-      "end_time": 16.66701301978977,
-      "duration": 4.182470562024317,
-      "start_frame": 199752,
-      "duration_frames": 66919,
-      "overlap": false,
-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.069191405163433,
-      "end_time": 21.93046913049742,
-      "duration": 4.861277725333987,
-      "start_frame": 273107,
-      "duration_frames": 77780,
-      "overlap": false,
-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 66919
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.385769800065244,
-      "end_time": 27.103618342691078,
-      "duration": 4.717848542625832,
-      "start_frame": 358172,
-      "duration_frames": 75485,
-      "overlap": false,
-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 144699
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.527608416830777,
-      "end_time": 30.850225134922987,
-      "duration": 3.322616718092209,
-      "start_frame": 440441,
-      "duration_frames": 53161,
-      "overlap": false,
-      "utterance_id": "3654-171139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171139.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 80131
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.47645602290909,
-      "end_time": 32.0,
-      "duration": 0.5235439770909096,
-      "start_frame": 503623,
-      "duration_frames": 8376,
-      "overlap": false,
-      "utterance_id": "7189-74189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-74189.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 22.56219954648526,
-      "start_time": 1.3331342578011671
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.251718666956216,
-      "start_time": 17.51406247303404
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_3.wav",
-      "duration": 1.0158503401360544,
-      "start_time": 24.781248522221265
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3654/cough/0065.wav",
-      "duration": 1.12,
-      "start_time": 11.74826107989316,
-      "speaker_id": "3654"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7423/laugh/0083.wav",
-      "duration": 1.12,
-      "start_time": 15.700222358953104,
-      "speaker_id": "7423"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7189/cough/0016.wav",
-      "duration": 0.8,
-      "start_time": 31.2,
-      "speaker_id": "7189"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005942.json b/conversations/conv_005942.json
deleted file mode 100644
index b5aad2e80dd1f3d02d13428a32ef125923d57007..0000000000000000000000000000000000000000
--- a/conversations/conv_005942.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.412002965455832,
-      "duration": 4.412002965455832,
-      "start_frame": 0,
-      "duration_frames": 70592,
-      "overlap": false,
-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.2696205737420545,
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-      "duration": 4.074081057176484,
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-      "duration_frames": 65185,
-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.216743972988263,
-      "end_time": 16.150597182463244,
-      "duration": 5.9338532094749805,
-      "start_frame": 163467,
-      "duration_frames": 94941,
-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 65185
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.400654739036344,
-      "end_time": 22.458126392183566,
-      "duration": 6.0574716531472195,
-      "start_frame": 262410,
-      "duration_frames": 96919,
-      "overlap": false,
-      "utterance_id": "6084-2159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.930673693600063,
-      "end_time": 29.550709741635334,
-      "duration": 5.62003604803527,
-      "start_frame": 382890,
-      "duration_frames": 89920,
-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 160126
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.20299987641433,
-      "end_time": 32.0,
-      "duration": 1.7970001235856685,
-      "start_frame": 483247,
-      "duration_frames": 28752,
-      "overlap": false,
-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 70592
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-      "start_time": 4.938714012379827
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-      "start_time": 29.316662265517188
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
-      "duration": 1.5316573011780923,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5290/laugh/0055.wav",
-      "duration": 1.12,
-      "start_time": 5.46325110264816,
-      "speaker_id": "5290"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5290/cough/0028.wav",
-      "duration": 1.0725097562606252,
-      "start_time": 16.256355478342787,
-      "speaker_id": "5290"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6084/cough/0009.wav",
-      "duration": 0.3179222893471039,
-      "start_time": 16.018513446231218,
-      "speaker_id": "6084"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005949.json b/conversations/conv_005949.json
deleted file mode 100644
index 3ce0ce63b82657bfb9eed0a9535ee044eeb003a5..0000000000000000000000000000000000000000
--- a/conversations/conv_005949.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.04449259079767,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2368-157054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157054.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.326333534287574,
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-      "utterance_id": "5604-26982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26982.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.923701375717197,
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-      "utterance_id": "2368-157056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157056.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.205484417900998,
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-      "duration": 4.2875459051955795,
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-      "duration_frames": 68600,
-      "overlap": false,
-      "utterance_id": "5604-26982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26982.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 76220
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.939340587509935,
-      "end_time": 26.884943678514052,
-      "duration": 4.9456030910041155,
-      "start_frame": 351029,
-      "duration_frames": 79129,
-      "overlap": true,
-      "utterance_id": "2368-157057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157057.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.953735623817742,
-      "end_time": 32.0,
-      "duration": 4.046264376182258,
-      "start_frame": 447259,
-      "duration_frames": 64740,
-      "overlap": false,
-      "utterance_id": "7640-102465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-102465.flac |",
-      "real_speaker_id": "7640",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
-      "duration": 0.9632426303854875,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5604/laugh/0001.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2368/cough/0049.wav",
-      "duration": 0.4727685836626816,
-      "start_time": 9.395559824399697,
-      "speaker_id": "2368"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005954.json b/conversations/conv_005954.json
deleted file mode 100644
index 6d645f3204dea0d1330afd28a5d084a07d7b0f8c..0000000000000000000000000000000000000000
--- a/conversations/conv_005954.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.647976417686464,
-      "duration": 6.647976417686464,
-      "start_frame": 0,
-      "duration_frames": 106367,
-      "overlap": false,
-      "utterance_id": "2254-152826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152826.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.107332370229794,
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-      "overlap": false,
-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.615041986109398,
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-      "duration_frames": 84445,
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-      "utterance_id": "2254-152824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152824.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-    {
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-      "utterance_id": "2254-152824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152824.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 84445
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
-      "duration": 24.756146287623316,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.0751745194126276,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2254/laugh/0058.wav",
-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "2254"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2254/cough/0074.wav",
-      "duration": 0.3769083198865921,
-      "start_time": 0,
-      "speaker_id": "2254"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/576/laugh/0075.wav",
-      "duration": 1.08,
-      "start_time": 5.777878474701079,
-      "speaker_id": "576"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2254/cough/0104.wav",
-      "duration": 0.8974744914929835,
-      "start_time": 11.70001708065444,
-      "speaker_id": "2254"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005958.json b/conversations/conv_005958.json
deleted file mode 100644
index 29325375ba2dd672de9c939944d7f43b99fd9c54..0000000000000000000000000000000000000000
--- a/conversations/conv_005958.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.717469511265325,
-      "duration": 4.717469511265325,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7240-92200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92200.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.310364211257307,
-      "end_time": 10.079393228047419,
-      "duration": 4.769029016790111,
-      "start_frame": 84965,
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-      "overlap": false,
-      "utterance_id": "8422-258258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258258.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.600734951712212,
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-      "start_frame": 169611,
-      "duration_frames": 97975,
-      "overlap": false,
-      "utterance_id": "5756-305216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-305216.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.70097832438685,
-      "end_time": 21.51022393035437,
-      "duration": 4.809245605967521,
-      "start_frame": 267215,
-      "duration_frames": 76947,
-      "overlap": true,
-      "utterance_id": "7240-92200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92200.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 75479
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.332422704256818,
-      "end_time": 26.24913153464664,
-      "duration": 3.9167088303898234,
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-      "duration_frames": 62667,
-      "overlap": false,
-      "utterance_id": "5756-305214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-305214.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.289172301258976,
-      "end_time": 31.29876648066682,
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-      "duration_frames": 64153,
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-      "utterance_id": "8422-258258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258258.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 76304
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.517979698597408,
-      "end_time": 32.0,
-      "duration": 0.4820203014025921,
-      "start_frame": 504287,
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-      "utterance_id": "7240-92200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92200.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 152426
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_15.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8422/cough/0107.wav",
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-      "start_time": 10.118975473158006,
-      "speaker_id": "8422"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005962.json b/conversations/conv_005962.json
deleted file mode 100644
index e05e080a77fa5f14ae96b9604cafcd9d618ddcc1..0000000000000000000000000000000000000000
--- a/conversations/conv_005962.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.422933363486308,
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-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.376713775981191,
-      "end_time": 19.416865910438183,
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-      "overlap": false,
-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 104698
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.66977887355348,
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-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 88760
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.492614679648554,
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-      "duration": 5.507385320351446,
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-      "overlap": false,
-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 185340
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/283/cough/0018.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005963.json b/conversations/conv_005963.json
deleted file mode 100644
index f983743454363c2397b68b237769878e1641f4bf..0000000000000000000000000000000000000000
--- a/conversations/conv_005963.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.264541955333662,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.488478431282,
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-      "start_frame": 0,
-      "duration_frames": 71815,
-      "overlap": false,
-      "utterance_id": "176-123270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-123270.flac |",
-      "real_speaker_id": "176",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.651083053084724,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-122025.flac |",
-      "real_speaker_id": "176",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1230-1060",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-1060.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.16760008928232,
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-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.579610798694848,
-      "end_time": 29.32099478310013,
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-      "utterance_id": "1230-1060",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-1060.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 98741
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.561078746413493,
-      "end_time": 31.264541955333662,
-      "duration": 1.7034632089201693,
-      "start_frame": 472977,
-      "duration_frames": 27255,
-      "overlap": true,
-      "utterance_id": "176-123271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-123271.flac |",
-      "real_speaker_id": "176",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_005974.json b/conversations/conv_005974.json
deleted file mode 100644
index ed8c587a6a6155c0833bfff32a8b8d5ae4a8898b..0000000000000000000000000000000000000000
--- a/conversations/conv_005974.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.18364751929893,
-      "duration": 3.18364751929893,
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-      "overlap": false,
-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.297876787790579,
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-      "utterance_id": "104-129578",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-129578.flac |",
-      "real_speaker_id": "104",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7376-92940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-92940.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "104-123365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-123365.flac |",
-      "real_speaker_id": "104",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-123365.flac |",
-      "real_speaker_id": "104",
-      "position_frames": 50925
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/104/cough/0041.wav",
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-      "start_time": 13.16397030456512,
-      "speaker_id": "104"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7376/cough/0127.wav",
-      "duration": 1.2,
-      "start_time": 22.691784819801015,
-      "speaker_id": "7376"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_005978.json b/conversations/conv_005978.json
deleted file mode 100644
index ddf13a2817a2f47460cc2d23c3265431817cb172..0000000000000000000000000000000000000000
--- a/conversations/conv_005978.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.876002598078093,
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-      "overlap": false,
-      "utterance_id": "233-155990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-155990.flac |",
-      "real_speaker_id": "233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.56496775439605,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296085.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "233-134440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-134440.flac |",
-      "real_speaker_id": "233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.484483699668765,
-      "end_time": 19.855065968759448,
-      "duration": 5.370582269090682,
-      "start_frame": 231751,
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-      "utterance_id": "8803-296085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296085.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 63783
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.51883034464265,
-      "end_time": 25.64949362996742,
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-      "duration_frames": 82090,
-      "overlap": false,
-      "utterance_id": "233-155990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-155990.flac |",
-      "real_speaker_id": "233",
-      "position_frames": 78016
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.303438635988535,
-      "end_time": 32.0,
-      "duration": 5.696561364011465,
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-      "duration_frames": 91144,
-      "overlap": false,
-      "utterance_id": "233-134440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-134440.flac |",
-      "real_speaker_id": "233",
-      "position_frames": 60594
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-    {
-      "event_class": "Frying",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/233/cough/0071.wav",
-      "duration": 1.1645178953167459,
-      "start_time": 8.968770951802787,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8803/cough/0095.wav",
-      "duration": 0.5527375834863044,
-      "start_time": 18.769865882987432,
-      "speaker_id": "8803"
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-}
\ No newline at end of file
diff --git a/conversations/conv_005981.json b/conversations/conv_005981.json
deleted file mode 100644
index f9619bcc357d946c480bf5d8e49cbc2eb2c34329..0000000000000000000000000000000000000000
--- a/conversations/conv_005981.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
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-      "utterance_id": "5513-39477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39477.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.920184840841239,
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-      "overlap": true,
-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.861431123102562,
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-      "overlap": false,
-      "utterance_id": "5513-39476",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39476.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.48642286049504,
-      "end_time": 23.913009303761758,
-      "duration": 5.426586443266718,
-      "start_frame": 295782,
-      "duration_frames": 86825,
-      "overlap": false,
-      "utterance_id": "6529-62556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62556.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.600936070789295,
-      "end_time": 29.51522620851176,
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-      "overlap": false,
-      "utterance_id": "7148-7763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-7763.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.908167986351216,
-      "end_time": 32.0,
-      "duration": 2.0918320136487836,
-      "start_frame": 478530,
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-      "overlap": false,
-      "utterance_id": "7148-59157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-59157.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-      "start_time": 10.458268074265375
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_005997.json b/conversations/conv_005997.json
deleted file mode 100644
index 088e099918e5afcb855421311b56980a62107c64..0000000000000000000000000000000000000000
--- a/conversations/conv_005997.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.409501662676679,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3274-167022.flac |",
-      "real_speaker_id": "3274",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.620745489201116,
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-      "duration_frames": 89907,
-      "overlap": true,
-      "utterance_id": "3215-5758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5758.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.462090746711397,
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-      "utterance_id": "2256-137628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137628.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.70668004194059,
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-      "utterance_id": "3274-167022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3274-167022.flac |",
-      "real_speaker_id": "3274",
-      "position_frames": 66059
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "start_frame": 440399,
-      "duration_frames": 71600,
-      "overlap": false,
-      "utterance_id": "2256-137628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137628.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 79960
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377982.wav",
-      "duration": 1.9138906045874453,
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2256/laugh/0010.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2256/laugh/0069.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2256/cough/0019.wav",
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-      "start_time": 22.46928604560835,
-      "speaker_id": "2256"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3274/laugh/0006.wav",
-      "duration": 1.2,
-      "start_time": 26.572479664813358,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "3274"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006006.json b/conversations/conv_006006.json
deleted file mode 100644
index 2093f5ba8d594d6aa10e7dc4b1ba27be5e98c5cb..0000000000000000000000000000000000000000
--- a/conversations/conv_006006.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.12033058818601,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.9304337187241885,
-      "duration": 6.9304337187241885,
-      "start_frame": 0,
-      "duration_frames": 110886,
-      "overlap": false,
-      "utterance_id": "7762-280917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.140540324400841,
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-      "utterance_id": "4211-3835",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3835.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.744850808006355,
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-      "utterance_id": "7762-280917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 110886
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "4211-3820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3820.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.63319752866174,
-      "end_time": 31.12033058818601,
-      "duration": 0.48713305952427177,
-      "start_frame": 490131,
-      "duration_frames": 7794,
-      "overlap": true,
-      "utterance_id": "4211-3819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3819.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 4.794317636104774,
-      "start_time": 1.002940479625662
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.3613043016689996,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7762/laugh/0015.wav",
-      "duration": 0.7575015720072531,
-      "start_time": 18.142203594227066,
-      "speaker_id": "7762"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006010.json b/conversations/conv_006010.json
deleted file mode 100644
index 0ce76c90f1bdc332bb7676339943a40ee947bb75..0000000000000000000000000000000000000000
--- a/conversations/conv_006010.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.281942719665903,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.0148394256353255,
-      "duration": 4.0148394256353255,
-      "start_frame": 0,
-      "duration_frames": 64237,
-      "overlap": false,
-      "utterance_id": "1370-138531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.426938262531011,
-      "end_time": 9.797447361880703,
-      "duration": 5.370509099349691,
-      "start_frame": 70831,
-      "duration_frames": 85928,
-      "overlap": true,
-      "utterance_id": "783-126739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.655091453631368,
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-      "duration": 5.133093157202451,
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-      "duration_frames": 82129,
-      "overlap": false,
-      "utterance_id": "7795-105407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.635475615432618,
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-      "duration": 3.926975648043719,
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-      "duration_frames": 62831,
-      "overlap": false,
-      "utterance_id": "1370-138531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 64237
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.015983900849292,
-      "end_time": 26.537744710720133,
-      "duration": 5.52176080987084,
-      "start_frame": 336255,
-      "duration_frames": 88348,
-      "overlap": false,
-      "utterance_id": "783-126739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 85928
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.64848814489084,
-      "end_time": 31.281942719665903,
-      "duration": 4.633454574775062,
-      "start_frame": 426375,
-      "duration_frames": 74135,
-      "overlap": false,
-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
-      "duration": 16.848412698412698,
-      "start_time": 2.1136285726863178
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/783/laugh/0002.wav",
-      "duration": 1.6166740209210357,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7795/laugh/0030.wav",
-      "duration": 1.2301862322787362,
-      "start_time": 9.389485814418597,
-      "speaker_id": "7795"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7795/cough/0018.wav",
-      "duration": 1.0930099830606066,
-      "start_time": 9.507618144001986,
-      "speaker_id": "7795"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/783/cough/0000.wav",
-      "duration": 1.0604682893951356,
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-      "speaker_id": "783"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006026.json b/conversations/conv_006026.json
deleted file mode 100644
index 66a40463187144d29da0eb1668084d0cb4560608..0000000000000000000000000000000000000000
--- a/conversations/conv_006026.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4107107147746185,
-      "duration": 3.4107107147746185,
-      "start_frame": 0,
-      "duration_frames": 54571,
-      "overlap": false,
-      "utterance_id": "8321-274737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-274737.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.536597418628171,
-      "end_time": 10.253199724469313,
-      "duration": 5.716602305841143,
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-      "duration_frames": 91465,
-      "overlap": false,
-      "utterance_id": "8321-260942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-260942.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.537603050325878,
-      "end_time": 13.66288992486378,
-      "duration": 3.125286874537902,
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-      "duration_frames": 50004,
-      "overlap": false,
-      "utterance_id": "8321-284207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-284207.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.799109933008777,
-      "end_time": 18.175585031009675,
-      "duration": 4.376475098000896,
-      "start_frame": 220785,
-      "duration_frames": 70023,
-      "overlap": false,
-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.5857882980661,
-      "end_time": 22.50172778502781,
-      "duration": 3.9159394869617112,
-      "start_frame": 297372,
-      "duration_frames": 62655,
-      "overlap": false,
-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 70023
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.863047919819913,
-      "end_time": 30.656513067635355,
-      "duration": 6.793465147815442,
-      "start_frame": 381808,
-      "duration_frames": 108695,
-      "overlap": false,
-      "utterance_id": "8321-284222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-284222.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.21908871256628,
-      "end_time": 32.0,
-      "duration": 0.780911287433721,
-      "start_frame": 499505,
-      "duration_frames": 12494,
-      "overlap": false,
-      "utterance_id": "8321-284207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-284207.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 50004
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.776636534530153,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8321/laugh/0123.wav",
-      "duration": 0.92,
-      "start_time": 3.4500188141905777,
-      "speaker_id": "8321"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8321/laugh/0096.wav",
-      "duration": 0.7102037511862946,
-      "start_time": 13.73980032769798,
-      "speaker_id": "8321"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8321/laugh/0071.wav",
-      "duration": 1.04,
-      "start_time": 30.71225984776731,
-      "speaker_id": "8321"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8321/laugh/0037.wav",
-      "duration": 0.6721283806332237,
-      "start_time": 30.435024124765263,
-      "speaker_id": "8321"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006027.json b/conversations/conv_006027.json
deleted file mode 100644
index 1ffe6a37a848eef518ed92c8932be2d5696a16a3..0000000000000000000000000000000000000000
--- a/conversations/conv_006027.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.001886135079164,
-      "duration": 6.001886135079164,
-      "start_frame": 0,
-      "duration_frames": 96030,
-      "overlap": false,
-      "utterance_id": "4051-11217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11217.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.408089530122997,
-      "end_time": 10.507267714610046,
-      "duration": 4.099178184487049,
-      "start_frame": 102529,
-      "duration_frames": 65586,
-      "overlap": false,
-      "utterance_id": "8580-287364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287364.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.874966885355056,
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-      "duration": 5.198223370986216,
-      "start_frame": 173999,
-      "duration_frames": 83171,
-      "overlap": false,
-      "utterance_id": "8580-287364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287364.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 65586
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.77979212043877,
-      "end_time": 21.453093114309368,
-      "duration": 5.673300993870598,
-      "start_frame": 252476,
-      "duration_frames": 90772,
-      "overlap": true,
-      "utterance_id": "4051-11218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11218.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.76061142379196,
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-      "utterance_id": "2473-157861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157861.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.76016539200281,
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-      "start_frame": 428162,
-      "duration_frames": 62150,
-      "overlap": false,
-      "utterance_id": "8580-287363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287363.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.272910592063866,
-      "end_time": 32.0,
-      "duration": 0.7270894079361341,
-      "start_frame": 500366,
-      "duration_frames": 11633,
-      "overlap": false,
-      "utterance_id": "2473-155521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-155521.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_4.wav",
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-      "start_time": 13.959140663268862
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-      "start_time": 0.8285653034235403
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4051/cough/0087.wav",
-      "duration": 0.4809496441372433,
-      "start_time": 0,
-      "speaker_id": "4051"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8580/laugh/0084.wav",
-      "duration": 0.72,
-      "start_time": 16.081979392626184,
-      "speaker_id": "8580"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8580/laugh/0031.wav",
-      "duration": 0.6719211524628986,
-      "start_time": 30.76479528895466,
-      "speaker_id": "8580"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006030.json b/conversations/conv_006030.json
deleted file mode 100644
index 4926b56e7ec6c83d7f8e15015c44b2542f3b5402..0000000000000000000000000000000000000000
--- a/conversations/conv_006030.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.947347780460564,
-      "duration": 5.947347780460564,
-      "start_frame": 0,
-      "duration_frames": 95157,
-      "overlap": false,
-      "utterance_id": "6788-96241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-96241.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.799589607348765,
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-      "duration": 3.115875274903833,
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-      "duration_frames": 49854,
-      "overlap": false,
-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-92420.flac |",
-      "real_speaker_id": "6788",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-96241.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 95157
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.9862519465482,
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-      "duration": 2.013748053451799,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
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-      "position_frames": 93911
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-      "duration": 1.64,
-      "start_time": 15.218238016289966,
-      "speaker_id": "1370"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6788/laugh/0050.wav",
-      "duration": 0.9306914852491105,
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "1370"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006047.json b/conversations/conv_006047.json
deleted file mode 100644
index ce5b57d71ff955d8e5425d169e1116ef3dcef479..0000000000000000000000000000000000000000
--- a/conversations/conv_006047.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8066-114256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-114256.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "5781-52134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52134.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "5781-52134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52134.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 77971
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.196089530963576,
-      "end_time": 22.250396771077078,
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-      "utterance_id": "205-159056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-159056.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.73274013170287,
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-      "utterance_id": "8066-114256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-114256.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 60542
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "205-157088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-157088.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "laugh",
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-      "start_time": 15.645480527068,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006051.json b/conversations/conv_006051.json
deleted file mode 100644
index 0503fba41c17abe33487398e6948ce1ad6d29131..0000000000000000000000000000000000000000
--- a/conversations/conv_006051.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137154.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 82336
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137154.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 103599
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.52425113338427,
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-      "duration": 5.834048441994397,
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-      "overlap": false,
-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 148171
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.247206117778827,
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-      "overlap": false,
-      "utterance_id": "8112-281876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8112-281876.flac |",
-      "real_speaker_id": "8112",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8112/laugh/0074.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006060.json b/conversations/conv_006060.json
deleted file mode 100644
index 79caf55b928b79c1fee8764fd5c74d1fa6b1f668..0000000000000000000000000000000000000000
--- a/conversations/conv_006060.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.543753932758305,
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-      "start_frame": 0,
-      "duration_frames": 104700,
-      "overlap": false,
-      "utterance_id": "6199-64259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-64259.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.350983990795793,
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-      "duration_frames": 111724,
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-      "utterance_id": "2254-152826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152826.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.79218871908305,
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-      "real_speaker_id": "6199",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 69255
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 2.7442830472843696,
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-      "utterance_id": "6199-64259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-64259.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 154927
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3148/laugh/0012.wav",
-      "duration": 0.92,
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\ No newline at end of file
diff --git a/conversations/conv_006067.json b/conversations/conv_006067.json
deleted file mode 100644
index 4c2e36d8bd71652ae852b77748f6d109a173df52..0000000000000000000000000000000000000000
--- a/conversations/conv_006067.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "end_time": 4.292930520477652,
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-      "start_frame": 0,
-      "duration_frames": 68686,
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-      "utterance_id": "5389-41911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-41911.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1690-142293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 8.94345236746209,
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-      "duration": 6.390047631295937,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.906286799833463,
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-      "utterance_id": "1690-142293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
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-      "segment_id": "seg0004",
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-      "utterance_id": "4222-187006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-187006.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.19886421566884,
-      "end_time": 32.0,
-      "duration": 2.8011357843311586,
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-      "overlap": false,
-      "utterance_id": "4222-12898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-12898.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
-      "duration": 3.512129548305979,
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-      "start_time": 30.906153259533927
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_006070.json b/conversations/conv_006070.json
deleted file mode 100644
index c3bac45b38b78ef61258aa9946650f1f8bdc4b6e..0000000000000000000000000000000000000000
--- a/conversations/conv_006070.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.915000516784473,
-      "duration": 5.915000516784473,
-      "start_frame": 0,
-      "duration_frames": 94640,
-      "overlap": false,
-      "utterance_id": "6446-78193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-78193.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.4491335928332605,
-      "end_time": 12.519043413403542,
-      "duration": 6.069909820570282,
-      "start_frame": 103186,
-      "duration_frames": 97118,
-      "overlap": false,
-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.435927978907067,
-      "end_time": 20.350084446510962,
-      "duration": 6.914156467603895,
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-      "duration_frames": 110626,
-      "overlap": false,
-      "utterance_id": "6446-40544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40544.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.079553836177514,
-      "end_time": 27.042181032663613,
-      "duration": 5.962627196486099,
-      "start_frame": 337272,
-      "duration_frames": 95402,
-      "overlap": false,
-      "utterance_id": "5684-46243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5684-46243.flac |",
-      "real_speaker_id": "5684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.928542416066684,
-      "end_time": 32.0,
-      "duration": 4.0714575839333165,
-      "start_frame": 446856,
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-      "utterance_id": "4406-16883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16883.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 11.087504151235855,
-      "speaker_id": "4406"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006071.json b/conversations/conv_006071.json
deleted file mode 100644
index 6cb0014acc81dd9a32e63cbd651dcae2563fa4f5..0000000000000000000000000000000000000000
--- a/conversations/conv_006071.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1084-139230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-139230.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.1572918719169145,
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-      "utterance_id": "3268-59226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3268-59226.flac |",
-      "real_speaker_id": "3268",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8322-276748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.96181546846133,
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-      "utterance_id": "8322-276748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 100761
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.146300943298485,
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-      "utterance_id": "8322-276748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 190828
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.29124563936833,
-      "end_time": 32.0,
-      "duration": 1.7087543606316693,
-      "start_frame": 484659,
-      "duration_frames": 27340,
-      "overlap": false,
-      "utterance_id": "1084-145077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-145077.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "duration": 1.16,
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-      "speaker_id": "1084"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006084.json b/conversations/conv_006084.json
deleted file mode 100644
index 48da402a5085ccd5b39e9a81f11641b0339d19f1..0000000000000000000000000000000000000000
--- a/conversations/conv_006084.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6518-66465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66465.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.993791960764842,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6518-66470",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66470.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "duration_frames": 82328,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 99744
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "6518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "2638",
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006088.json b/conversations/conv_006088.json
deleted file mode 100644
index 9e150c8f2397548d68c58596e7ff2484b43fd9fe..0000000000000000000000000000000000000000
--- a/conversations/conv_006088.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.2936635924944015,
-      "duration": 5.2936635924944015,
-      "start_frame": 0,
-      "duration_frames": 84698,
-      "overlap": false,
-      "utterance_id": "5126-36956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-36956.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-114452.flac |",
-      "real_speaker_id": "6924",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3112-9555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9555.flac |",
-      "real_speaker_id": "3112",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-34483.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
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-      "utterance_id": "6924-291609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-291609.flac |",
-      "real_speaker_id": "6924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.027900662458812,
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-      "duration": 2.972099337541188,
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-      "overlap": false,
-      "utterance_id": "3112-9555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9555.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 83917
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_8.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3112/laugh/0098.wav",
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-      "start_time": 15.357645062911267,
-      "speaker_id": "3112"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006092.json b/conversations/conv_006092.json
deleted file mode 100644
index 5aa17895816d1b6f150f9ce0de05bea6a4925185..0000000000000000000000000000000000000000
--- a/conversations/conv_006092.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "end_time": 5.324068519991915,
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-      "overlap": false,
-      "utterance_id": "2660-154321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-154321.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.904002862702836,
-      "end_time": 10.42457070425965,
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-      "duration_frames": 72329,
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-      "utterance_id": "3370-163384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-163384.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.89389356852531,
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-      "overlap": false,
-      "utterance_id": "2660-154321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-154321.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 85185
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "duration": 3.236349657546619,
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-      "overlap": true,
-      "utterance_id": "5115-26951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26951.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.026206400062915,
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-      "overlap": false,
-      "utterance_id": "2660-154321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-154321.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 167940
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.89493369618622,
-      "end_time": 29.941824598747054,
-      "duration": 5.0468909025608335,
-      "start_frame": 398318,
-      "duration_frames": 80750,
-      "overlap": false,
-      "utterance_id": "3370-756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-756.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.691186151130317,
-      "end_time": 32.0,
-      "duration": 1.3088138488696828,
-      "start_frame": 491058,
-      "duration_frames": 20941,
-      "overlap": false,
-      "utterance_id": "2660-154321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-154321.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 221319
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 17.72137904041438,
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5115/laugh/0064.wav",
-      "duration": 1.32,
-      "start_time": 17.185026275020824,
-      "speaker_id": "5115"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2660/laugh/0111.wav",
-      "duration": 0.5496222824948453,
-      "start_time": 31.450377717505155,
-      "speaker_id": "2660"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006102.json b/conversations/conv_006102.json
deleted file mode 100644
index af8c4b6c6e9f4628f8a0d64388e4ba308d18323e..0000000000000000000000000000000000000000
--- a/conversations/conv_006102.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.829097232694412,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3513-163607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-163607.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.464469186117524,
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-      "utterance_id": "7520-258986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.715909071280494,
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-      "utterance_id": "3513-163606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-163606.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.539806654628247,
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-      "overlap": false,
-      "utterance_id": "7520-258986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 78553
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "6676-280387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-280387.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.39761974449239,
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-      "duration": 3.843879766803144,
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-      "utterance_id": "3513-163607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-163607.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 61265
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.135165996357856,
-      "end_time": 32.0,
-      "duration": 1.8648340036421445,
-      "start_frame": 482162,
-      "duration_frames": 29837,
-      "overlap": false,
-      "utterance_id": "6676-275138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-275138.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3513/laugh/0101.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3513/cough/0060.wav",
-      "duration": 1.22,
-      "start_time": 0,
-      "speaker_id": "3513"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7520/cough/0090.wav",
-      "duration": 1.305188673932873,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3513/cough/0119.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3513/cough/0080.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6676/laugh/0124.wav",
-      "duration": 1.6518478534337029,
-      "start_time": 30.348152146566296,
-      "speaker_id": "6676"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006109.json b/conversations/conv_006109.json
deleted file mode 100644
index b2d5bcfe5182179c72a87a871b26db46e9e26f1d..0000000000000000000000000000000000000000
--- a/conversations/conv_006109.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.2739325520453875,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "402-130001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-130001.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.805130086830208,
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-      "duration_frames": 98219,
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-      "utterance_id": "1643-138089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1643-138089.flac |",
-      "real_speaker_id": "1643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.734158598287173,
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-      "utterance_id": "402-126843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-126843.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.46364762587482,
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-      "utterance_id": "1643-138089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1643-138089.flac |",
-      "real_speaker_id": "1643",
-      "position_frames": 98219
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.940644052942336,
-      "end_time": 28.09027388853995,
-      "duration": 3.149629835597614,
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-      "duration_frames": 50394,
-      "overlap": false,
-      "utterance_id": "4771-29406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-29406.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.507132201220603,
-      "end_time": 32.0,
-      "duration": 2.492867798779397,
-      "start_frame": 472114,
-      "duration_frames": 39885,
-      "overlap": false,
-      "utterance_id": "402-130001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-130001.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 100382
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_14.wav",
-      "duration": 1.5647845804988663,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_6.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1643/cough/0018.wav",
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-      "start_time": 24.17536787934032,
-      "speaker_id": "1643"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006114.json b/conversations/conv_006114.json
deleted file mode 100644
index 7055e19484311d0c4cabe57ce0ad11d1cd559fa2..0000000000000000000000000000000000000000
--- a/conversations/conv_006114.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "utterance_id": "3440-171009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171009.flac |",
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-      "position_frames": 0
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-      "start_time": 6.362827175591256,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171009.flac |",
-      "real_speaker_id": "3440",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2477.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 58241
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171009.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 179276
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_6.wav",
-      "duration": 1.2077777777777778,
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7609/laugh/0001.wav",
-      "duration": 1.38,
-      "start_time": 7.989803591162722,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3440/laugh/0093.wav",
-      "duration": 1.16,
-      "start_time": 9.351065104897843,
-      "speaker_id": "3440"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006118.json b/conversations/conv_006118.json
deleted file mode 100644
index 7cb03f778feba1be5a921d0e38090b2c5e62874c..0000000000000000000000000000000000000000
--- a/conversations/conv_006118.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.284956120372797,
-  "num_speakers": 3,
-  "overlap_rate": 0.6666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4599-21274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.564103459252426,
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-      "duration": 4.087139380332001,
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-      "utterance_id": "4899-32637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32637.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
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-      "start_time": 9.48705207791105,
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-      "utterance_id": "8543-280376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280376.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.038896591617803,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
-      "position_frames": 72545
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 59811
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4899/cough/0030.wav",
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-      "speaker_id": "4899"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006122.json b/conversations/conv_006122.json
deleted file mode 100644
index 1f4cbd7939d5df9870715272eb845f865201e220..0000000000000000000000000000000000000000
--- a/conversations/conv_006122.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "123-5042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-5042.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-25081.flac |",
-      "real_speaker_id": "123",
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-      "utterance_id": "147-125761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/147-125761.flac |",
-      "real_speaker_id": "147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.673607143959092,
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-      "duration_frames": 60657,
-      "overlap": false,
-      "utterance_id": "123-25084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-25084.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.932702325391567,
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-      "duration": 6.716657333270506,
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-      "overlap": false,
-      "utterance_id": "147-125761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/147-125761.flac |",
-      "real_speaker_id": "147",
-      "position_frames": 96409
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.714784717002544,
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-      "duration": 2.2852152829974557,
-      "start_frame": 475436,
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-      "overlap": false,
-      "utterance_id": "123-25084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-25084.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 60657
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006125.json b/conversations/conv_006125.json
deleted file mode 100644
index f65bd111d33590ca8210bd7e7864803091581368..0000000000000000000000000000000000000000
--- a/conversations/conv_006125.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.297866131201321,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8143-278206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278206.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7082362181028996,
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-      "duration_frames": 79348,
-      "overlap": true,
-      "utterance_id": "4848-28247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-28247.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.324062870137752,
-      "end_time": 13.984155731787641,
-      "duration": 3.66009286164989,
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-      "duration_frames": 58561,
-      "overlap": false,
-      "utterance_id": "8143-278223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.273293687029868,
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-      "duration_frames": 91433,
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-      "utterance_id": "4848-28247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-28247.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 79348
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.498761770547663,
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-      "overlap": false,
-      "utterance_id": "4848-29108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-29108.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.347537254251375,
-      "end_time": 32.0,
-      "duration": 5.652462745748625,
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-      "duration_frames": 90439,
-      "overlap": false,
-      "utterance_id": "4848-29108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-29108.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 84481
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8143/laugh/0006.wav",
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-      "start_time": 1.870722153573579,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4848/cough/0080.wav",
-      "duration": 1.0,
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-      "speaker_id": "4848"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006134.json b/conversations/conv_006134.json
deleted file mode 100644
index f3722a5bc1f07da05d2c9e340da33247e2c97bc1..0000000000000000000000000000000000000000
--- a/conversations/conv_006134.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.917656702719533,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.992812246606391,
-      "duration": 4.992812246606391,
-      "start_frame": 0,
-      "duration_frames": 79884,
-      "overlap": false,
-      "utterance_id": "5252-4868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4868.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
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-      "real_speaker_id": "6880",
-      "position_frames": 95636
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "5252-4876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4876.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6880-216547.flac |",
-      "real_speaker_id": "6880",
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6880/cough/0106.wav",
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-      "event_class": "laugh",
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-      "start_time": 23.08464799824573,
-      "speaker_id": "5252"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006135.json b/conversations/conv_006135.json
deleted file mode 100644
index 4db7998fcfcc2ef56893e0bfdcd2a24383d4c2d7..0000000000000000000000000000000000000000
--- a/conversations/conv_006135.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8536-244442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8536-244442.flac |",
-      "real_speaker_id": "8536",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.037264981772969,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4583-17998.flac |",
-      "real_speaker_id": "4583",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "512-124549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124549.flac |",
-      "real_speaker_id": "512",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 16.915641945509368,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8536-244442.flac |",
-      "real_speaker_id": "8536",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.550995430706628,
-      "end_time": 27.804749055103606,
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-      "utterance_id": "4583-17998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4583-17998.flac |",
-      "real_speaker_id": "4583",
-      "position_frames": 86909
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8536-244442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8536-244442.flac |",
-      "real_speaker_id": "8536",
-      "position_frames": 165979
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006138.json b/conversations/conv_006138.json
deleted file mode 100644
index 64acaf44feef191da47a682d3912d1fa06f74415..0000000000000000000000000000000000000000
--- a/conversations/conv_006138.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1094-157768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157768.flac |",
-      "real_speaker_id": "1094",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-129977.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-129661.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.873528459778427,
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-      "utterance_id": "4425-14497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
-      "position_frames": 78619
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.933627306442492,
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-      "utterance_id": "1094-157767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157767.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "198"
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006143.json b/conversations/conv_006143.json
deleted file mode 100644
index 2c2eae0e44a8dc44526421d0b54157c047421c21..0000000000000000000000000000000000000000
--- a/conversations/conv_006143.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 3.442895569727089,
-      "start_frame": 0,
-      "duration_frames": 55086,
-      "overlap": false,
-      "utterance_id": "4957-36386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-36386.flac |",
-      "real_speaker_id": "4957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.8326595277868387,
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-      "duration_frames": 60767,
-      "overlap": false,
-      "utterance_id": "1260-139271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139271.flac |",
-      "real_speaker_id": "1260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "4957-36386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-36386.flac |",
-      "real_speaker_id": "4957",
-      "position_frames": 55086
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 16.046665358885733,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 52642
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.390898069015954,
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-      "duration_frames": 62749,
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-      "utterance_id": "1260-139266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139266.flac |",
-      "real_speaker_id": "1260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.80977543381568,
-      "end_time": 32.0,
-      "duration": 4.19022456618432,
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-      "utterance_id": "4957-30119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-30119.flac |",
-      "real_speaker_id": "4957",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 5.847795354795738
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-    {
-      "event_class": "Dog",
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-      "duration": 1.9447845804988662,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4957/laugh/0087.wav",
-      "duration": 1.091776639539276,
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-      "speaker_id": "4957"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006148.json b/conversations/conv_006148.json
deleted file mode 100644
index 303fb6faea24bbcd04546d185e3f5ef47b86d451..0000000000000000000000000000000000000000
--- a/conversations/conv_006148.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.959708103374464,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_006155.json b/conversations/conv_006155.json
deleted file mode 100644
index d4a37a9ad1709bce5ac98838e8107d6c96562fa5..0000000000000000000000000000000000000000
--- a/conversations/conv_006155.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3618",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
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-      "utterance_id": "3618-175930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175930.flac |",
-      "real_speaker_id": "3618",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 82244
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.506459062654102,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-178097.flac |",
-      "real_speaker_id": "3618",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121446.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_006159.json b/conversations/conv_006159.json
deleted file mode 100644
index b048bb88c3693248985981292af66e95c819785c..0000000000000000000000000000000000000000
--- a/conversations/conv_006159.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 79795
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "4771",
-      "position_frames": 58345
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 190334
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-  ],
-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_006163.json b/conversations/conv_006163.json
deleted file mode 100644
index 13a8466867f37528d95b5ec9a84fe2eada3373ad..0000000000000000000000000000000000000000
--- a/conversations/conv_006163.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6947-53261",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53261.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99124.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6947-53262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53262.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-723.flac |",
-      "real_speaker_id": "3922",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_006175.json b/conversations/conv_006175.json
deleted file mode 100644
index bcbe741dc8b99e24d28e347e22a87658f16ec100..0000000000000000000000000000000000000000
--- a/conversations/conv_006175.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "844-135042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-135042.flac |",
-      "real_speaker_id": "844",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "3328-168638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-168638.flac |",
-      "real_speaker_id": "3328",
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "5489",
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-      "real_speaker_id": "5489",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3328-168638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-168638.flac |",
-      "real_speaker_id": "3328",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-65803.flac |",
-      "real_speaker_id": "5489",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79638.wav",
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\ No newline at end of file
diff --git a/conversations/conv_006179.json b/conversations/conv_006179.json
deleted file mode 100644
index c8a9b65d159c7197edd282d156a6813b486b84bd..0000000000000000000000000000000000000000
--- a/conversations/conv_006179.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-707.flac |",
-      "real_speaker_id": "4463",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.6614624620804,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31624.flac |",
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-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-16807.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 20.838299516497745,
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-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 86443
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.64900639310399,
-      "end_time": 32.0,
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-      "start_frame": 426384,
-      "duration_frames": 85615,
-      "overlap": false,
-      "utterance_id": "4463-26871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-26871.flac |",
-      "real_speaker_id": "4463",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2348/laugh/0001.wav",
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-      "speaker_id": "4463"
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\ No newline at end of file
diff --git a/conversations/conv_006180.json b/conversations/conv_006180.json
deleted file mode 100644
index bfaecddd14f35766e27707139892dd7d0c391a0c..0000000000000000000000000000000000000000
--- a/conversations/conv_006180.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-      "real_speaker_id": "7314",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124147.flac |",
-      "real_speaker_id": "322",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273137.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124147.flac |",
-      "real_speaker_id": "322",
-      "position_frames": 54715
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "7314",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124147.flac |",
-      "real_speaker_id": "322",
-      "position_frames": 118948
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 12.948500982905705,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8012/laugh/0075.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "8012"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/322/laugh/0088.wav",
-      "duration": 0.5002761814245397,
-      "start_time": 24.17518782683914,
-      "speaker_id": "322"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006196.json b/conversations/conv_006196.json
deleted file mode 100644
index d1a3ae087dbcbf741959a7255889dbfd2fd04867..0000000000000000000000000000000000000000
--- a/conversations/conv_006196.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1224-121064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1224-121064.flac |",
-      "real_speaker_id": "1224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.3240229062823405,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 0
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-      "utterance_id": "1224-121064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1224-121064.flac |",
-      "real_speaker_id": "1224",
-      "position_frames": 54122
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 88293
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.647558324610863,
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-      "utterance_id": "8075-279233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279233.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.675880480778467,
-      "end_time": 32.0,
-      "duration": 0.3241195192215329,
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-      "duration_frames": 5185,
-      "overlap": false,
-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 171654
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_0.wav",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2001/laugh/0028.wav",
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-      "start_time": 5.161421016611859,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1224/laugh/0038.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006207.json b/conversations/conv_006207.json
deleted file mode 100644
index eb76bdc5e196104b4298cdab55f9fb0f51352646..0000000000000000000000000000000000000000
--- a/conversations/conv_006207.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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\ No newline at end of file
diff --git a/conversations/conv_006211.json b/conversations/conv_006211.json
deleted file mode 100644
index c33c286dace1f1790588f575417bb779a1e4a4ce..0000000000000000000000000000000000000000
--- a/conversations/conv_006211.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.91462177147008,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_006220.json b/conversations/conv_006220.json
deleted file mode 100644
index ca4d5ac2365c5c20aef09a437a1c4bf3cfe27386..0000000000000000000000000000000000000000
--- a/conversations/conv_006220.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_006227.json b/conversations/conv_006227.json
deleted file mode 100644
index 6c165fddaa1a05caec9befa8acfd4e7d503389d6..0000000000000000000000000000000000000000
--- a/conversations/conv_006227.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154697.flac |",
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-      "speaker_id": "8430"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006231.json b/conversations/conv_006231.json
deleted file mode 100644
index cbfe7003a613ed17b0992a04a3f8e7354331c092..0000000000000000000000000000000000000000
--- a/conversations/conv_006231.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.4844747929272,
-      "duration": 6.4844747929272,
-      "start_frame": 0,
-      "duration_frames": 103751,
-      "overlap": false,
-      "utterance_id": "1392-135659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135659.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.024800413900852,
-      "end_time": 13.018950197412499,
-      "duration": 5.994149783511647,
-      "start_frame": 112396,
-      "duration_frames": 95906,
-      "overlap": false,
-      "utterance_id": "1392-140654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-140654.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.144251632178982,
-      "end_time": 18.449488214073085,
-      "duration": 5.3052365818941025,
-      "start_frame": 210308,
-      "duration_frames": 84883,
-      "overlap": false,
-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.752725424478324,
-      "end_time": 21.936054246226192,
-      "duration": 3.1833288217478684,
-      "start_frame": 300043,
-      "duration_frames": 50933,
-      "overlap": false,
-      "utterance_id": "1392-135659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135659.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 103751
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.09749612289314,
-      "end_time": 28.490060169878305,
-      "duration": 6.392564046985164,
-      "start_frame": 353559,
-      "duration_frames": 102281,
-      "overlap": false,
-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 84883
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.505835101328085,
-      "end_time": 32.0,
-      "duration": 2.494164898671915,
-      "start_frame": 472093,
-      "duration_frames": 39906,
-      "overlap": false,
-      "utterance_id": "1392-140654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-140654.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 95906
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
-      "duration": 21.842059827532694,
-      "start_time": 9.853601307962471
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 14.820577736460038
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1392/laugh/0019.wav",
-      "duration": 0.9787407347587775,
-      "start_time": 0,
-      "speaker_id": "1392"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1392/laugh/0101.wav",
-      "duration": 0.7262465392507209,
-      "start_time": 17.752533484188294,
-      "speaker_id": "1392"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7250/cough/0012.wav",
-      "duration": 0.8740881625163714,
-      "start_time": 21.080627000839733,
-      "speaker_id": "7250"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1392/laugh/0058.wav",
-      "duration": 1.2853576462360632,
-      "start_time": 30.714642353763935,
-      "speaker_id": "1392"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006236.json b/conversations/conv_006236.json
deleted file mode 100644
index 19246713b44def903c637d38e584756c5cc43487..0000000000000000000000000000000000000000
--- a/conversations/conv_006236.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.203924696666768,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.491680653975478,
-      "duration": 6.491680653975478,
-      "start_frame": 0,
-      "duration_frames": 103866,
-      "overlap": false,
-      "utterance_id": "8138-293529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293529.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.587637237156576,
-      "end_time": 14.48288272465197,
-      "duration": 6.895245487495394,
-      "start_frame": 121402,
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-      "overlap": false,
-      "utterance_id": "7933-113273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-113273.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 15.474521813286465,
-      "end_time": 19.756544454598334,
-      "duration": 4.282022641311868,
-      "start_frame": 247592,
-      "duration_frames": 68512,
-      "overlap": false,
-      "utterance_id": "8138-293529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293529.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 103866
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.282776079274587,
-      "end_time": 26.702648809126877,
-      "duration": 6.419872729852289,
-      "start_frame": 324524,
-      "duration_frames": 102717,
-      "overlap": false,
-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.27703525060384,
-      "end_time": 31.203924696666768,
-      "duration": 3.926889446062928,
-      "start_frame": 436432,
-      "duration_frames": 62830,
-      "overlap": true,
-      "utterance_id": "2405-7360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-7360.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 12.0969711476761,
-      "start_time": 0.2892855414234406
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
-      "duration": 0.6496145124716554,
-      "start_time": 21.19584831623239
-    },
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7933/laugh/0099.wav",
-      "duration": 1.04,
-      "start_time": 14.566854704112346,
-      "speaker_id": "7933"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8138/laugh/0101.wav",
-      "duration": 1.16,
-      "start_time": 18.160523408700577,
-      "speaker_id": "8138"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8138/cough/0104.wav",
-      "duration": 0.9886019461158,
-      "start_time": 19.849944519297114,
-      "speaker_id": "8138"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006246.json b/conversations/conv_006246.json
deleted file mode 100644
index ab5cc4e090ae2cd93cdfe2b91e8523c9e63b2e7e..0000000000000000000000000000000000000000
--- a/conversations/conv_006246.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.703866507928139,
-      "duration": 4.703866507928139,
-      "start_frame": 0,
-      "duration_frames": 75261,
-      "overlap": false,
-      "utterance_id": "47-122796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.288654271724313,
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-      "duration_frames": 59858,
-      "overlap": false,
-      "utterance_id": "3869-700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-700.flac |",
-      "real_speaker_id": "3869",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.879225270162465,
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-      "overlap": true,
-      "utterance_id": "3869-699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-699.flac |",
-      "real_speaker_id": "3869",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.588146442101364,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-280362.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.831401529576453,
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-      "duration_frames": 75717,
-      "overlap": false,
-      "utterance_id": "47-122796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
-      "position_frames": 75261
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.5447074662209,
-      "end_time": 32.0,
-      "duration": 4.455292533779101,
-      "start_frame": 440715,
-      "duration_frames": 71284,
-      "overlap": false,
-      "utterance_id": "3869-700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-700.flac |",
-      "real_speaker_id": "3869",
-      "position_frames": 59858
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3869/laugh/0013.wav",
-      "duration": 0.8912941472265228,
-      "start_time": 4.237057123265716,
-      "speaker_id": "3869"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3869/laugh/0026.wav",
-      "duration": 1.2399115439364237,
-      "start_time": 14.770880625931232,
-      "speaker_id": "3869"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3869/cough/0035.wav",
-      "duration": 0.98,
-      "start_time": 12.515939886842808,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5471/cough/0072.wav",
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-      "start_time": 21.657112041447526,
-      "speaker_id": "5471"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006250.json b/conversations/conv_006250.json
deleted file mode 100644
index 96065009c9dd4fd3ca1b8e297bad9d48c90841e1..0000000000000000000000000000000000000000
--- a/conversations/conv_006250.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.1527977139007586,
-      "duration": 3.1527977139007586,
-      "start_frame": 0,
-      "duration_frames": 50444,
-      "overlap": false,
-      "utterance_id": "1944-159230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1944-159230.flac |",
-      "real_speaker_id": "1944",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.13388681547221,
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-      "duration": 3.7141595202453033,
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-      "duration_frames": 59426,
-      "overlap": false,
-      "utterance_id": "7333-94827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94827.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.773138043384794,
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-      "duration_frames": 86021,
-      "overlap": false,
-      "utterance_id": "1944-159228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1944-159228.flac |",
-      "real_speaker_id": "1944",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.047998313489057,
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-      "utterance_id": "8322-276748",
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-      "real_speaker_id": "8322",
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 20.297032221118883,
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-      "real_speaker_id": "7333",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 4.499613600118639,
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-      "utterance_id": "7333-94827",
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-      "position_frames": 59426
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-  "background_events": [
-    {
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "duration": 0.84,
-      "start_time": 26.41104194072461,
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-      "speaker_id": "7333"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006261.json b/conversations/conv_006261.json
deleted file mode 100644
index f17041f3e25756cc61192e86e846e0d8938e89af..0000000000000000000000000000000000000000
--- a/conversations/conv_006261.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "403-216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-216.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.77060473830516,
-      "end_time": 11.934651945642006,
-      "duration": 5.164047207336846,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
-      "real_speaker_id": "403",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-66016.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 17.92150021167059,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 82624
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.816622135989846,
-      "end_time": 28.536544237356317,
-      "duration": 4.719922101366473,
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-      "overlap": true,
-      "utterance_id": "40-121026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-121026.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.64489711337066,
-      "end_time": 32.0,
-      "duration": 2.3551028866293393,
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-      "duration_frames": 37681,
-      "overlap": false,
-      "utterance_id": "6330-62851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62851.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 0.84,
-      "start_time": 11.197072834574458,
-      "speaker_id": "6330"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006266.json b/conversations/conv_006266.json
deleted file mode 100644
index 0951835640ee9fdc99cf19bef0e32de4ef0200cb..0000000000000000000000000000000000000000
--- a/conversations/conv_006266.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7559-96246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 0
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-      "start_time": 4.533748911447325,
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 69019
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-159359.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.08791170721717,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-155520.flac |",
-      "real_speaker_id": "2581",
-      "position_frames": 0
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-      "start_time": 24.858216117353223,
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-      "utterance_id": "7559-96247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 1.9743117464087732,
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-      "utterance_id": "2581-157857",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 16.43679520509035,
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "7559"
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-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
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-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9,
-      "start_time": 31.1,
-      "speaker_id": "2581"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006267.json b/conversations/conv_006267.json
deleted file mode 100644
index b20ba129a576f8e5c51d0207c2f3ddd3434683e8..0000000000000000000000000000000000000000
--- a/conversations/conv_006267.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-65528.flac |",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "3258",
-      "position_frames": 76082
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-      "segment_id": "seg0004",
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-      "utterance_id": "4936-64719",
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-      "real_speaker_id": "4936",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.24233563804937,
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-      "duration": 4.757664361950631,
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-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
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-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006270.json b/conversations/conv_006270.json
deleted file mode 100644
index 316ad9f19f518fd0753b95d360bc6ab5ab31d5d1..0000000000000000000000000000000000000000
--- a/conversations/conv_006270.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "real_speaker_id": "2050",
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\ No newline at end of file
diff --git a/conversations/conv_006277.json b/conversations/conv_006277.json
deleted file mode 100644
index 5ad98dca24d1442daaa94098e96242cd1824bd34..0000000000000000000000000000000000000000
--- a/conversations/conv_006277.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105212.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
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-      "utterance_id": "6402-102886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-102886.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_006285.json b/conversations/conv_006285.json
deleted file mode 100644
index b2848ee5c1119b73b271ecbc3160722ab1c7e662..0000000000000000000000000000000000000000
--- a/conversations/conv_006285.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_006288.json b/conversations/conv_006288.json
deleted file mode 100644
index 4760847560ae948cbd3dda1ae3746af491ea7b25..0000000000000000000000000000000000000000
--- a/conversations/conv_006288.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-258982.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_006289.json b/conversations/conv_006289.json
deleted file mode 100644
index 6914e2ad4d8e29f137d850b120a33ec3cdbdaf9c..0000000000000000000000000000000000000000
--- a/conversations/conv_006289.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7445-94523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7445-94523.flac |",
-      "real_speaker_id": "7445",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.378856513574146,
-      "end_time": 32.0,
-      "duration": 3.6211434864258543,
-      "start_frame": 454061,
-      "duration_frames": 57938,
-      "overlap": false,
-      "utterance_id": "7121-86787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-86787.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 81102
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7447/laugh/0098.wav",
-      "duration": 1.04,
-      "start_time": 17.92069171266125,
-      "speaker_id": "7447"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7447/cough/0033.wav",
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-      "start_time": 17.865734962107247,
-      "speaker_id": "7447"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006293.json b/conversations/conv_006293.json
deleted file mode 100644
index 586aedebd31a630dab4f1d87cba2d3379a8e8f5e..0000000000000000000000000000000000000000
--- a/conversations/conv_006293.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.6460852787454723,
-      "duration": 3.6460852787454723,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.566499620201069,
-      "end_time": 10.856550938406485,
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-      "overlap": false,
-      "utterance_id": "8430-172388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172388.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.034724045229389,
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-      "overlap": false,
-      "utterance_id": "8172-281514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281514.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.711022931383354,
-      "end_time": 22.485599958029844,
-      "duration": 4.774577026646491,
-      "start_frame": 283376,
-      "duration_frames": 76393,
-      "overlap": false,
-      "utterance_id": "8430-172387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172387.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.942348538629528,
-      "end_time": 27.637200783835873,
-      "duration": 5.694852245206343,
-      "start_frame": 351077,
-      "duration_frames": 91117,
-      "overlap": true,
-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 58337
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.640248429581273,
-      "end_time": 32.0,
-      "duration": 3.3597515704187266,
-      "start_frame": 458243,
-      "duration_frames": 53756,
-      "overlap": false,
-      "utterance_id": "8172-281511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281511.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8430"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006298.json b/conversations/conv_006298.json
deleted file mode 100644
index cfeb874bf32387bc9034e5bd5fd2e41abf9997d8..0000000000000000000000000000000000000000
--- a/conversations/conv_006298.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8389-120181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8389-120181.flac |",
-      "real_speaker_id": "8389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.89501465100051,
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-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.282053667113232,
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-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.14927523619583,
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-      "overlap": true,
-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 64978
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8389-282920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8389-282920.flac |",
-      "real_speaker_id": "8389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.4349712012105,
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-      "duration_frames": 97876,
-      "overlap": false,
-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 65377
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.21272347163263,
-      "end_time": 32.0,
-      "duration": 0.7872765283673715,
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-      "duration_frames": 12596,
-      "overlap": false,
-      "utterance_id": "8389-282920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8389-282920.flac |",
-      "real_speaker_id": "8389",
-      "position_frames": 76292
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8389/cough/0003.wav",
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-      "speaker_id": "8389"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2284/laugh/0071.wav",
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-      "start_time": 17.564286801385087,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2284/cough/0146.wav",
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-      "start_time": 17.382374103177195,
-      "speaker_id": "2284"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7090/cough/0014.wav",
-      "duration": 1.22,
-      "start_time": 25.121009759949484,
-      "speaker_id": "7090"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006303.json b/conversations/conv_006303.json
deleted file mode 100644
index cb7d9516fec72fb35d9c1c8330a088ad29a944d0..0000000000000000000000000000000000000000
--- a/conversations/conv_006303.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 91182,
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-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.463592619437293,
-      "end_time": 11.21648523543411,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135022.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5044-30592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30592.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.344131359618398,
-      "end_time": 23.354223555155798,
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-      "start_frame": 293506,
-      "duration_frames": 80161,
-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 91182
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.527282018037624,
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-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 171343
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.85631878302666,
-      "end_time": 32.0,
-      "duration": 1.1436812169733415,
-      "start_frame": 493701,
-      "duration_frames": 18298,
-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 281064
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5044/laugh/0075.wav",
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-      "start_time": 18.289799486973422,
-      "speaker_id": "5044"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006315.json b/conversations/conv_006315.json
deleted file mode 100644
index 508599d0cf68ed70584602d2d777aed5c317c009..0000000000000000000000000000000000000000
--- a/conversations/conv_006315.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.722342416266844,
-      "duration": 6.722342416266844,
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-      "utterance_id": "5583-38026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-38026.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "3657-182397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-182397.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 0
-    },
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-      "utterance_id": "7783-107486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107486.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.18702791862168,
-      "end_time": 26.677580057867125,
-      "duration": 6.490552139245445,
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-      "utterance_id": "5583-41919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41919.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.866861490058785,
-      "end_time": 32.0,
-      "duration": 5.133138509941215,
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-      "utterance_id": "7783-107486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107486.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 95515
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/84654.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5583/laugh/0047.wav",
-      "duration": 0.92,
-      "start_time": 0,
-      "speaker_id": "5583"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5583/cough/0040.wav",
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-      "start_time": 6.88821376823664,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7783/cough/0066.wav",
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-      "start_time": 13.127104732450691,
-      "speaker_id": "7783"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5583/cough/0100.wav",
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-      "start_time": 18.918897363674965,
-      "speaker_id": "5583"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006319.json b/conversations/conv_006319.json
deleted file mode 100644
index c08e22fb2536637acc8cd74d3a945de23086d3ce..0000000000000000000000000000000000000000
--- a/conversations/conv_006319.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5722212861810174,
-      "duration": 3.5722212861810174,
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-      "overlap": false,
-      "utterance_id": "707-138866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-138866.flac |",
-      "real_speaker_id": "707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.8208718749134727,
-      "end_time": 9.697703684699967,
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-      "overlap": false,
-      "utterance_id": "8565-290393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290393.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.478602039065983,
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-      "utterance_id": "707-138866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-138866.flac |",
-      "real_speaker_id": "707",
-      "position_frames": 57155
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.787336638610437,
-      "end_time": 19.9119253350655,
-      "duration": 3.124588696455062,
-      "start_frame": 268597,
-      "duration_frames": 49993,
-      "overlap": false,
-      "utterance_id": "8565-290391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290391.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.749737014115738,
-      "end_time": 25.469906934035322,
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-      "duration_frames": 75522,
-      "overlap": false,
-      "utterance_id": "707-138866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-138866.flac |",
-      "real_speaker_id": "707",
-      "position_frames": 153020
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.050090578706538,
-      "end_time": 30.668264306461577,
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-      "overlap": false,
-      "utterance_id": "8565-290398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290398.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.439080247449205,
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-      "duration": 0.5609197525507952,
-      "start_frame": 503025,
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-      "utterance_id": "707-138866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-138866.flac |",
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-      "position_frames": 228542
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8565/laugh/0022.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8565/laugh/0046.wav",
-      "duration": 0.96,
-      "start_time": 26.735245901965882,
-      "speaker_id": "8565"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006322.json b/conversations/conv_006322.json
deleted file mode 100644
index 9a356852ce3fc4a55792f3bcad6dc82b22c6a2e3..0000000000000000000000000000000000000000
--- a/conversations/conv_006322.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "62-121084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.172523732107383,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-107483.flac |",
-      "real_speaker_id": "7739",
-      "position_frames": 0
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-    {
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-      "utterance_id": "29-130626",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/29-130626.flac |",
-      "real_speaker_id": "29",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.534755648256393,
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-      "duration": 4.676106832359086,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 63019
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.707516320153328,
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-      "utterance_id": "29-123032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/29-123032.flac |",
-      "real_speaker_id": "29",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.02887373559403,
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-      "overlap": false,
-      "utterance_id": "62-121084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 137836
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.7743253826257,
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-      "duration": 1.225674617374299,
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-      "utterance_id": "29-130626",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/29-130626.flac |",
-      "real_speaker_id": "29",
-      "position_frames": 90517
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_12.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7739/laugh/0039.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/29/laugh/0125.wav",
-      "duration": 0.5945980789886378,
-      "start_time": 10.203846681710532,
-      "speaker_id": "29"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006323.json b/conversations/conv_006323.json
deleted file mode 100644
index de2f0bcff3c623c7bc0b08603264e679e78c0d96..0000000000000000000000000000000000000000
--- a/conversations/conv_006323.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3657-78622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-78622.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.217325277371756,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-68344.flac |",
-      "real_speaker_id": "3171",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.334252941358015,
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-      "utterance_id": "4179-20593",
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-      "position_frames": 0
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-      "utterance_id": "4179-25937",
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-      "real_speaker_id": "4179",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.11912399867793,
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-      "overlap": true,
-      "utterance_id": "3657-182397",
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-      "real_speaker_id": "3657",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3171-7574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-7574.flac |",
-      "real_speaker_id": "3171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "3657-78622",
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-      "real_speaker_id": "3657",
-      "position_frames": 56102
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-  "background_events": [
-    {
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_006324.json b/conversations/conv_006324.json
deleted file mode 100644
index 2d59544f1fbca6d2896fc573b8dc6eb141ce10e9..0000000000000000000000000000000000000000
--- a/conversations/conv_006324.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.095382221280979,
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-      "utterance_id": "439-123866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-123866.flac |",
-      "real_speaker_id": "439",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "overlap": true,
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-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105168.flac |",
-      "real_speaker_id": "7720",
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5285-48598.flac |",
-      "real_speaker_id": "5285",
-      "position_frames": 94325
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
-      "duration": 0.4961451247165533,
-      "start_time": 28.22876975451829
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-      "event_class": "Frying",
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-      "start_time": 29.484237982982943,
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-      "event_class": "cough",
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-      "speaker_id": "5285"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006332.json b/conversations/conv_006332.json
deleted file mode 100644
index 05a2ec43c665237700f1353b6057f3154648e293..0000000000000000000000000000000000000000
--- a/conversations/conv_006332.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.55607923942988,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "836-131106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-131106.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 5.1124291249633105,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-143361.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-131106.flac |",
-      "real_speaker_id": "836",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1649-68762.flac |",
-      "real_speaker_id": "1649",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-143361.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 66442
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "836-130900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-130900.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006335.json b/conversations/conv_006335.json
deleted file mode 100644
index 0ba78cd39f169afa95f20f8438fbf3fd1f02e7ac..0000000000000000000000000000000000000000
--- a/conversations/conv_006335.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285245.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285245.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41159.flac |",
-      "real_speaker_id": "4218",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4214-7146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 68369
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8382-285236",
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-      "real_speaker_id": "8382",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8382/laugh/0003.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006339.json b/conversations/conv_006339.json
deleted file mode 100644
index 42d772dd7677b043161d9180d38d7818ca4824b9..0000000000000000000000000000000000000000
--- a/conversations/conv_006339.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "594-127732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/594-127732.flac |",
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-    {
-      "segment_id": "seg0001",
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-    {
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-      "duration": 1.48,
-      "start_time": 4.108952078479813,
-      "speaker_id": "4734"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4734/laugh/0073.wav",
-      "duration": 1.1015333949139585,
-      "start_time": 11.56659700598187,
-      "speaker_id": "4734"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4734/laugh/0048.wav",
-      "duration": 0.7340088828220164,
-      "start_time": 22.1090435387341,
-      "speaker_id": "4734"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5154/laugh/0096.wav",
-      "duration": 0.5777662054700523,
-      "start_time": 28.192951984446953,
-      "speaker_id": "5154"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006342.json b/conversations/conv_006342.json
deleted file mode 100644
index ecaca31bc1b48fa1fc5627241400842c5f69a120..0000000000000000000000000000000000000000
--- a/conversations/conv_006342.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.729768223949362,
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-      "utterance_id": "500-125123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.860730872252967,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-59146.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.168862299363616,
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-      "overlap": false,
-      "utterance_id": "4218-41157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41157.flac |",
-      "real_speaker_id": "4218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.585702501864297,
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-      "utterance_id": "5244-54280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-54280.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.175502086949486,
-      "end_time": 27.29023022951,
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-      "overlap": false,
-      "utterance_id": "4218-41157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41157.flac |",
-      "real_speaker_id": "4218",
-      "position_frames": 68684
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.42117993288403,
-      "end_time": 32.0,
-      "duration": 4.57882006711597,
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-      "utterance_id": "5244-59146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-59146.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 110609
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4218/cough/0020.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5244/laugh/0092.wav",
-      "duration": 1.1199296223160857,
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-      "speaker_id": "5244"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006354.json b/conversations/conv_006354.json
deleted file mode 100644
index 282c6f2e9ae06bfabcf53e624358b0cee793d48c..0000000000000000000000000000000000000000
--- a/conversations/conv_006354.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-8675.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 0
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-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
-      "position_frames": 95787
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5876-8675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-8675.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 61057
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.19518184914569,
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-      "overlap": false,
-      "utterance_id": "5876-10347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-10347.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.608667634307118,
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-      "duration": 1.3913323656928824,
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-      "overlap": false,
-      "utterance_id": "2003-143254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8531/laugh/0015.wav",
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-      "start_time": 18.3655751321001,
-      "speaker_id": "8531"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006358.json b/conversations/conv_006358.json
deleted file mode 100644
index 15d63657efb5874f345a6c70a892197155a53ab3..0000000000000000000000000000000000000000
--- a/conversations/conv_006358.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-285357.flac |",
-      "real_speaker_id": "6563",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.090301248134891,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1851-148312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148312.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.854200513157444,
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-      "real_speaker_id": "5918",
-      "position_frames": 61711
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-285357.flac |",
-      "real_speaker_id": "6563",
-      "position_frames": 103033
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1851-148312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148312.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 90816
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "cough",
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-      "duration": 1.0,
-      "start_time": 18.630158080189954,
-      "speaker_id": "5918"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006359.json b/conversations/conv_006359.json
deleted file mode 100644
index 741c2d420496902eebef8a3079ebde2855dd3792..0000000000000000000000000000000000000000
--- a/conversations/conv_006359.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.767740170709622,
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-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154673.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6411/laugh/0080.wav",
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-      "start_time": 10.19472665397236,
-      "speaker_id": "6411"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7367/laugh/0020.wav",
-      "duration": 1.4,
-      "start_time": 29.862444106826544,
-      "speaker_id": "7367"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006362.json b/conversations/conv_006362.json
deleted file mode 100644
index cc2d95c150297079a91ea7764b85ba87d6e65965..0000000000000000000000000000000000000000
--- a/conversations/conv_006362.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.610754989325876,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.669712350441311,
-      "duration": 4.669712350441311,
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-      "overlap": false,
-      "utterance_id": "2339-181101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2339-181101.flac |",
-      "real_speaker_id": "2339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.095899860459507,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
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-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "1066-103481",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-103481.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 16.0875077512904,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2339-158764.flac |",
-      "real_speaker_id": "2339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.486791664963974,
-      "end_time": 25.829600192526264,
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-      "overlap": false,
-      "utterance_id": "1066-4479",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-4479.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.717874930850634,
-      "end_time": 31.610754989325876,
-      "duration": 4.8928800584752405,
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-      "overlap": false,
-      "utterance_id": "2339-181100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2339-181100.flac |",
-      "real_speaker_id": "2339",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.44,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1066/laugh/0064.wav",
-      "duration": 1.16,
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-      "event_class": "cough",
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-      "start_time": 15.372689520116513,
-      "speaker_id": "2339"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006365.json b/conversations/conv_006365.json
deleted file mode 100644
index ffae083799b00b03db831b3e9550e5c8aedda3c7..0000000000000000000000000000000000000000
--- a/conversations/conv_006365.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8576-300229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-300229.flac |",
-      "real_speaker_id": "8576",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.14735634028079,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64292.flac |",
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-      "utterance_id": "8576-285176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-285176.flac |",
-      "real_speaker_id": "8576",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6426-64292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64292.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 59551
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.010249760650296,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6356-271890.flac |",
-      "real_speaker_id": "6356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.553987538404755,
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-      "utterance_id": "6426-64292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64292.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 125923
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.61003194524629,
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-      "utterance_id": "8576-300229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-300229.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8576/laugh/0017.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6426/laugh/0045.wav",
-      "duration": 1.12,
-      "start_time": 30.771861288943892,
-      "speaker_id": "6426"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006373.json b/conversations/conv_006373.json
deleted file mode 100644
index 735dcb0b8114fd0de1df7d883bce7b51c55c35df..0000000000000000000000000000000000000000
--- a/conversations/conv_006373.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1195-130164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-130164.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8402963128523897,
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-      "utterance_id": "7491-110524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-110524.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 0
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-      "real_speaker_id": "6962",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "7491-114606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-114606.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "1195",
-      "position_frames": 51270
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 88679
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "1195-135814",
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-      "real_speaker_id": "1195",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1195/laugh/0089.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.2,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7491/cough/0116.wav",
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-      "speaker_id": "7491"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006374.json b/conversations/conv_006374.json
deleted file mode 100644
index d9960fe718431d96f3df4456a7a0a8052a0ecc92..0000000000000000000000000000000000000000
--- a/conversations/conv_006374.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6288-63105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63105.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.800484853885685,
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-      "real_speaker_id": "7859",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6288-63111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63111.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "5826",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.152627772515963,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7859-102518.flac |",
-      "real_speaker_id": "7859",
-      "position_frames": 89065
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.618931277091228,
-      "end_time": 32.0,
-      "duration": 2.381068722908772,
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-      "duration_frames": 38097,
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-      "utterance_id": "6288-63111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63111.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 78833
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 21.05861678004535,
-      "start_time": 5.841780877308213
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-  ],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.269137928376996,
-      "start_time": 26.448689292414283
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
-      "duration": 0.4329251700680272,
-      "start_time": 29.142920811951765
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6288/laugh/0079.wav",
-      "duration": 1.26,
-      "start_time": 0,
-      "speaker_id": "6288"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7859/laugh/0058.wav",
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-      "speaker_id": "7859"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9,
-      "start_time": 12.065119629016388,
-      "speaker_id": "6288"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5826/cough/0059.wav",
-      "duration": 0.8028458909502727,
-      "start_time": 19.2727870606326,
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-    {
-      "event_class": "cough",
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-      "duration": 1.1484600569059973,
-      "start_time": 30.851539943094004,
-      "speaker_id": "6288"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006378.json b/conversations/conv_006378.json
deleted file mode 100644
index 92e825e243c3be3d502dc6d9010472a572baf0e2..0000000000000000000000000000000000000000
--- a/conversations/conv_006378.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.957756120036089,
-      "duration": 6.957756120036089,
-      "start_frame": 0,
-      "duration_frames": 111324,
-      "overlap": false,
-      "utterance_id": "3488-85273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3488-85273.flac |",
-      "real_speaker_id": "3488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.306134713758295,
-      "end_time": 12.394167758542409,
-      "duration": 5.088033044784114,
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-      "duration_frames": 81408,
-      "overlap": false,
-      "utterance_id": "5132-33409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-33409.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3488-65654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3488-65654.flac |",
-      "real_speaker_id": "3488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.320654516873738,
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-      "duration": 4.231220273342183,
-      "start_frame": 309130,
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-      "overlap": false,
-      "utterance_id": "5132-26564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-26564.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.32716980509472,
-      "end_time": 29.026439840599913,
-      "duration": 4.6992700355051955,
-      "start_frame": 389234,
-      "duration_frames": 75188,
-      "overlap": false,
-      "utterance_id": "3488-85273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3488-85273.flac |",
-      "real_speaker_id": "3488",
-      "position_frames": 111324
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.196904108903322,
-      "end_time": 32.0,
-      "duration": 2.803095891096678,
-      "start_frame": 467150,
-      "duration_frames": 44849,
-      "overlap": false,
-      "utterance_id": "3488-85273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3488-85273.flac |",
-      "real_speaker_id": "3488",
-      "position_frames": 186512
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
-      "duration": 0.2580952380952381,
-      "start_time": 18.792902061690356
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5132/cough/0057.wav",
-      "duration": 0.9475875990053826,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 23.810274586338263,
-      "speaker_id": "5132"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3488/laugh/0003.wav",
-      "duration": 1.4,
-      "start_time": 22.854331880824265,
-      "speaker_id": "3488"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3488/laugh/0017.wav",
-      "duration": 0.6939117059939278,
-      "start_time": 31.306088294006074,
-      "speaker_id": "3488"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006381.json b/conversations/conv_006381.json
deleted file mode 100644
index 547991bca2dca972db40eaa8593ff6cfb4d9d267..0000000000000000000000000000000000000000
--- a/conversations/conv_006381.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7026-86946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86946.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.348431787037864,
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-      "utterance_id": "5319-42637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-42637.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "5319-84357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-84357.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.007334690694005,
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-      "duration_frames": 70840,
-      "overlap": false,
-      "utterance_id": "7026-86941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.037729991713917,
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-      "overlap": false,
-      "utterance_id": "1463-134463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134463.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.37664549313336,
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-      "duration": 4.317767664059465,
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-      "duration_frames": 69084,
-      "overlap": false,
-      "utterance_id": "1463-134465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.17392152672881,
-      "end_time": 32.0,
-      "duration": 3.8260784732711883,
-      "start_frame": 450782,
-      "duration_frames": 61217,
-      "overlap": false,
-      "utterance_id": "7026-86943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86943.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5319/laugh/0010.wav",
-      "duration": 1.2,
-      "start_time": 15.045399334108929,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1463/cough/0116.wav",
-      "duration": 1.020880291001132,
-      "start_time": 18.83265918506277,
-      "speaker_id": "1463"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7026/laugh/0035.wav",
-      "duration": 1.117382433008669,
-      "start_time": 27.031881505254873,
-      "speaker_id": "7026"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7026/cough/0046.wav",
-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "7026"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006397.json b/conversations/conv_006397.json
deleted file mode 100644
index 9e11745c0ba15cf475069b8e2327c94a67fd2b2b..0000000000000000000000000000000000000000
--- a/conversations/conv_006397.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.352719716262816,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2893-139322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139322.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.540666076734822,
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-      "utterance_id": "2893-139310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139310.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.690818642987274,
-      "end_time": 16.82589009947452,
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-      "utterance_id": "6324-64062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.255775127486007,
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-      "duration_frames": 81673,
-      "overlap": false,
-      "utterance_id": "1422-149735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1422-149735.flac |",
-      "real_speaker_id": "1422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.384955775322474,
-      "end_time": 29.432238925810253,
-      "duration": 6.047283150487777,
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-      "duration_frames": 96756,
-      "overlap": false,
-      "utterance_id": "6324-64062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 98161
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.995900058886228,
-      "end_time": 32.0,
-      "duration": 2.004099941113772,
-      "start_frame": 479934,
-      "duration_frames": 32065,
-      "overlap": false,
-      "utterance_id": "2893-139322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139322.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 69643
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 3.7477014545584595,
-      "start_time": 26.14533468815314
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1422/laugh/0087.wav",
-      "duration": 0.6478238590057954,
-      "start_time": 22.374212007804303,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2893/laugh/0027.wav",
-      "duration": 1.36,
-      "start_time": 28.480897810274264,
-      "speaker_id": "2893"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006401.json b/conversations/conv_006401.json
deleted file mode 100644
index e3dcc17c891aeff4ae54caa5d8ba72942834829d..0000000000000000000000000000000000000000
--- a/conversations/conv_006401.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "speaker_id": "3242"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006417.json b/conversations/conv_006417.json
deleted file mode 100644
index 7a59a5927337387e62847e38d99eb47f9116b4bd..0000000000000000000000000000000000000000
--- a/conversations/conv_006417.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.45503686987637,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-138074.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 0
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-      "start_time": 4.671009754001381,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-88353.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8098-275181.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8098-278252.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_006420.json b/conversations/conv_006420.json
deleted file mode 100644
index 77110d3c98680531555ce60dbacd3574dedf587f..0000000000000000000000000000000000000000
--- a/conversations/conv_006420.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "segment_id": "seg0004",
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-      "utterance_id": "1482-140067",
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_006421.json b/conversations/conv_006421.json
deleted file mode 100644
index 3f0d0414882730ca4ff34750a0943757d6b932f6..0000000000000000000000000000000000000000
--- a/conversations/conv_006421.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132015.flac |",
-      "real_speaker_id": "404",
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "7665",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132014.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "position_frames": 94854
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132014.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 68472
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_006430.json b/conversations/conv_006430.json
deleted file mode 100644
index 82904d766039402bc7692339e39598ee4a03cba4..0000000000000000000000000000000000000000
--- a/conversations/conv_006430.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1826-142752",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6352-83633.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6352-83633.flac |",
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-      "segment_id": "seg0005",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_006437.json b/conversations/conv_006437.json
deleted file mode 100644
index 2b7484a8771f16528b77f4c9d74a69bbbd219002..0000000000000000000000000000000000000000
--- a/conversations/conv_006437.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.33139509866719,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184448.flac |",
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-      "real_speaker_id": "5280",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-104515.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_006440.json b/conversations/conv_006440.json
deleted file mode 100644
index cf88d4dc8059861d02c2fccc39f7b783d4ae5598..0000000000000000000000000000000000000000
--- a/conversations/conv_006440.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "581",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "6227",
-      "position_frames": 135652
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006456.json b/conversations/conv_006456.json
deleted file mode 100644
index 69ab07899f5878e73febea15149a392960c41576..0000000000000000000000000000000000000000
--- a/conversations/conv_006456.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2654/cough/0034.wav",
-      "duration": 0.6471502358251142,
-      "start_time": 20.637486057938137,
-      "speaker_id": "2654"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006460.json b/conversations/conv_006460.json
deleted file mode 100644
index b2a7a46c26e49ce432a21be5351113d5d5406ab9..0000000000000000000000000000000000000000
--- a/conversations/conv_006460.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.991975664054214,
-      "duration": 5.991975664054214,
-      "start_frame": 0,
-      "duration_frames": 95871,
-      "overlap": false,
-      "utterance_id": "7502-100425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100425.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.157097146059661,
-      "end_time": 10.90310519556024,
-      "duration": 4.74600804950058,
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-      "duration_frames": 75936,
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-      "utterance_id": "8040-260923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-260923.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.192651080211999,
-      "end_time": 15.280919060613854,
-      "duration": 4.088267980401855,
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-      "duration_frames": 65412,
-      "overlap": false,
-      "utterance_id": "7502-100426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100426.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.456442244718716,
-      "end_time": 19.042982609466712,
-      "duration": 3.5865403647479974,
-      "start_frame": 247303,
-      "duration_frames": 57384,
-      "overlap": false,
-      "utterance_id": "7502-100425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100425.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 95871
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.213297253210154,
-      "end_time": 23.245639571652355,
-      "duration": 4.032342318442201,
-      "start_frame": 307412,
-      "duration_frames": 64517,
-      "overlap": false,
-      "utterance_id": "7502-100425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100425.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 153255
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.92027374907034,
-      "end_time": 29.802329921986036,
-      "duration": 5.882056172915696,
-      "start_frame": 382724,
-      "duration_frames": 94112,
-      "overlap": false,
-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.984881201511055,
-      "end_time": 32.0,
-      "duration": 1.0151187984889454,
-      "start_frame": 495758,
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-      "utterance_id": "7502-100440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100440.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
-      "duration": 2.183197436530822,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1878/laugh/0096.wav",
-      "duration": 1.14,
-      "start_time": 30.082628506200965,
-      "speaker_id": "1878"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006476.json b/conversations/conv_006476.json
deleted file mode 100644
index dc5caa7c1ceaebec929dad8722058fea1c8fb885..0000000000000000000000000000000000000000
--- a/conversations/conv_006476.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.94106805430082,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7538-100044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100044.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.505272406203557,
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-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.805215436294851,
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-      "duration": 6.004749099869854,
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-      "overlap": false,
-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 99150
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.27980751790941,
-      "end_time": 25.796679447915444,
-      "duration": 5.516871930006035,
-      "start_frame": 324476,
-      "duration_frames": 88269,
-      "overlap": false,
-      "utterance_id": "7538-100043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100043.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.239605907343527,
-      "end_time": 30.94106805430082,
-      "duration": 4.701462146957292,
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-      "overlap": false,
-      "utterance_id": "3992-714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3992-714.flac |",
-      "real_speaker_id": "3992",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
-      "duration": 4.572382450451094,
-      "start_time": 9.390040229679133
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
-      "duration": 0.2863945578231292,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1648/cough/0011.wav",
-      "duration": 1.182081191943846,
-      "start_time": 12.768723123557228,
-      "speaker_id": "1648"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006477.json b/conversations/conv_006477.json
deleted file mode 100644
index 2d9ca730f914eb9c4034991524d6717fd5ba46a0..0000000000000000000000000000000000000000
--- a/conversations/conv_006477.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-7574.flac |",
-      "real_speaker_id": "3171",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-7574.flac |",
-      "real_speaker_id": "3171",
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-      "real_speaker_id": "6752",
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-      "utterance_id": "3112-9554",
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-      "real_speaker_id": "3112",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006483.json b/conversations/conv_006483.json
deleted file mode 100644
index 146d51db029089bc1c5fd9ada7c7e35515ebce57..0000000000000000000000000000000000000000
--- a/conversations/conv_006483.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-122857.flac |",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-      "speaker_id": "4591"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006495.json b/conversations/conv_006495.json
deleted file mode 100644
index 6f72adb7e68a81f4fae61f522188c9f9e4f1b2db..0000000000000000000000000000000000000000
--- a/conversations/conv_006495.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "start_time": 0.0,
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-      "utterance_id": "8238-274553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-274553.flac |",
-      "real_speaker_id": "8238",
-      "position_frames": 0
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-      "start_time": 6.001341701683123,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
-      "real_speaker_id": "3895",
-      "position_frames": 94366
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.870089569250233,
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-      "duration": 3.657425318756397,
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-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 87316
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.99964108412056,
-      "end_time": 32.0,
-      "duration": 2.0003589158794384,
-      "start_frame": 479994,
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-      "overlap": false,
-      "utterance_id": "3895-6855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
-      "real_speaker_id": "3895",
-      "position_frames": 177848
-    }
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "speaker_id": "3895"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006499.json b/conversations/conv_006499.json
deleted file mode 100644
index 2dbbb27662bcf4b2c6ca7ae22ac0d4a3ff88dc5f..0000000000000000000000000000000000000000
--- a/conversations/conv_006499.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.651314807940174,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1252-134983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
-      "real_speaker_id": "1252",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
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-      "real_speaker_id": "4214",
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "2437-153220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-153220.flac |",
-      "real_speaker_id": "2437",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 27.00507779245362,
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-      "utterance_id": "1252-134983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
-      "real_speaker_id": "1252",
-      "position_frames": 178638
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "1252"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006505.json b/conversations/conv_006505.json
deleted file mode 100644
index 3d906e958e28eda477c8a68cbc156297f07ffda0..0000000000000000000000000000000000000000
--- a/conversations/conv_006505.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2246-131710.flac |",
-      "real_speaker_id": "2246",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24788.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "position_frames": 155430
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006509.json b/conversations/conv_006509.json
deleted file mode 100644
index 9a679f1d16fae01d829f58e70362071d769f9af3..0000000000000000000000000000000000000000
--- a/conversations/conv_006509.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 70537
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.62639430576629,
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-      "utterance_id": "7220-77905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77905.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.22177643388531,
-      "end_time": 32.0,
-      "duration": 3.77822356611469,
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-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7220/laugh/0107.wav",
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-    {
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7220/cough/0033.wav",
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-      "speaker_id": "7220"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1723/laugh/0048.wav",
-      "duration": 0.9765402502142104,
-      "start_time": 27.159150798910158,
-      "speaker_id": "1723"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006513.json b/conversations/conv_006513.json
deleted file mode 100644
index 4b4e43e7b8f4364f8d0515306de26f174e917be4..0000000000000000000000000000000000000000
--- a/conversations/conv_006513.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.915555418372597,
-      "duration": 6.915555418372597,
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-      "duration_frames": 110648,
-      "overlap": false,
-      "utterance_id": "7708-293973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-293973.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.4017970352687374,
-      "end_time": 13.62461048315664,
-      "duration": 6.222813447887903,
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-      "duration_frames": 99565,
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-      "utterance_id": "5772-43316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43316.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.947205658244757,
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-      "overlap": false,
-      "utterance_id": "7708-293973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-293973.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 110648
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.62505804171302,
-      "end_time": 27.190010943533892,
-      "duration": 6.564952901820872,
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-      "utterance_id": "5772-43316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43316.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 99565
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 28.200914338871584,
-      "end_time": 32.0,
-      "duration": 3.799085661128416,
-      "start_frame": 451214,
-      "duration_frames": 60785,
-      "overlap": false,
-      "utterance_id": "7333-94829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94829.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
-      "duration": 3.390393264444216,
-      "start_time": 24.280219442057376
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5772/laugh/0081.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.8,
-      "start_time": 27.2584792568821,
-      "speaker_id": "5772"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006518.json b/conversations/conv_006518.json
deleted file mode 100644
index 85cfeea274a1b1f08376b4135e6188a5feef441a..0000000000000000000000000000000000000000
--- a/conversations/conv_006518.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4719-25766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.703975228071896,
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-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
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-    {
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-      "utterance_id": "7198-76169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-76169.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "7198-80652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.857730951358832,
-      "end_time": 32.0,
-      "duration": 3.142269048641168,
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-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
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-  "background_events": [
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-      "event_class": "Blender",
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-      "event_class": "Dishes",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1733/laugh/0108.wav",
-      "duration": 1.14,
-      "start_time": 29.87066705525838,
-      "speaker_id": "1733"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006525.json b/conversations/conv_006525.json
deleted file mode 100644
index cec9bf03a6fee3b3476bf247221c7276069aa90f..0000000000000000000000000000000000000000
--- a/conversations/conv_006525.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.290178786746857,
-      "duration": 5.290178786746857,
-      "start_frame": 0,
-      "duration_frames": 84642,
-      "overlap": false,
-      "utterance_id": "5233-28389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28389.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.804012390627131,
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-      "utterance_id": "7777-106366",
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-      "real_speaker_id": "7777",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration": 5.317218641375622,
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-      "duration_frames": 85075,
-      "overlap": true,
-      "utterance_id": "5810-8689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8689.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5233/laugh/0025.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5810/cough/0058.wav",
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-    {
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5233/cough/0077.wav",
-      "duration": 0.7689462131267957,
-      "start_time": 31.231053786873204,
-      "speaker_id": "5233"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006529.json b/conversations/conv_006529.json
deleted file mode 100644
index b31c41a3fffb9cec25e66f26ba148ac43efbdef5..0000000000000000000000000000000000000000
--- a/conversations/conv_006529.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 31.344810839188447,
-  "num_speakers": 3,
-  "overlap_rate": 0.25,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.1778575133836986,
-      "duration": 3.1778575133836986,
-      "start_frame": 0,
-      "duration_frames": 50845,
-      "overlap": false,
-      "utterance_id": "2156-25563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-25563.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.3473850724389758,
-      "end_time": 8.606406478809586,
-      "duration": 5.25902140637061,
-      "start_frame": 53558,
-      "duration_frames": 84144,
-      "overlap": false,
-      "utterance_id": "7255-281345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-281345.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.915102157904144,
-      "end_time": 12.304336449868162,
-      "duration": 3.389234291964018,
-      "start_frame": 142641,
-      "duration_frames": 54227,
-      "overlap": false,
-      "utterance_id": "2156-25563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-25563.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 50845
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.598133960432616,
-      "end_time": 17.721235463766007,
-      "duration": 4.123101503333391,
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-      "utterance_id": "7255-291500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-291500.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.971603796338073,
-      "end_time": 21.022940893129075,
-      "duration": 3.0513370967910003,
-      "start_frame": 287545,
-      "duration_frames": 48821,
-      "overlap": false,
-      "utterance_id": "2156-25563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-25563.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 105072
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 21.197626090385754,
-      "end_time": 24.725208177185618,
-      "duration": 3.527582086799863,
-      "start_frame": 339162,
-      "duration_frames": 56441,
-      "overlap": false,
-      "utterance_id": "2589-177234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-177234.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 24.771578834678753,
-      "end_time": 29.59729099091384,
-      "duration": 4.825712156235089,
-      "start_frame": 396345,
-      "duration_frames": 77211,
-      "overlap": true,
-      "utterance_id": "2156-25563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-25563.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 153893
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 0,
-      "start_time": 30.402950398613697,
-      "end_time": 31.344810839188447,
-      "duration": 0.9418604405747502,
-      "start_frame": 486447,
-      "duration_frames": 15069,
-      "overlap": true,
-      "utterance_id": "7255-281345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-281345.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 84144
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
-      "duration": 14.882616058202876,
-      "start_time": 9.98198750352056
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
-      "duration": 4.229241858716733,
-      "start_time": 0.9373359569805876
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
-      "duration": 2.8706914652177002,
-      "start_time": 27.568175679362994
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2156/laugh/0051.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "2156"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2589/laugh/0049.wav",
-      "duration": 1.1078372176535187,
-      "start_time": 19.830759091092656,
-      "speaker_id": "2589"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006533.json b/conversations/conv_006533.json
deleted file mode 100644
index f50112b7a34f1b6fef927a914c9de3f0e27e2164..0000000000000000000000000000000000000000
--- a/conversations/conv_006533.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.593552458739457,
-      "duration": 5.593552458739457,
-      "start_frame": 0,
-      "duration_frames": 89496,
-      "overlap": false,
-      "utterance_id": "5133-80690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.167099073732887,
-      "end_time": 11.718189460542952,
-      "duration": 5.551090386810066,
-      "start_frame": 98673,
-      "duration_frames": 88817,
-      "overlap": false,
-      "utterance_id": "7312-92432",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7312-92432.flac |",
-      "real_speaker_id": "7312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.499470190042782,
-      "end_time": 17.58356057452482,
-      "duration": 5.084090384482038,
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-      "duration_frames": 81345,
-      "overlap": false,
-      "utterance_id": "4226-12707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-12707.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.900920068222028,
-      "end_time": 22.99016666634514,
-      "duration": 5.08924659812311,
-      "start_frame": 286414,
-      "duration_frames": 81427,
-      "overlap": false,
-      "utterance_id": "7312-92432",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7312-92432.flac |",
-      "real_speaker_id": "7312",
-      "position_frames": 88817
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.68464058850339,
-      "end_time": 28.68777714712776,
-      "duration": 5.003136558624371,
-      "start_frame": 378954,
-      "duration_frames": 80050,
-      "overlap": false,
-      "utterance_id": "5133-80690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 89496
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.811374320215187,
-      "end_time": 32.0,
-      "duration": 3.1886256797848134,
-      "start_frame": 460981,
-      "duration_frames": 51018,
-      "overlap": false,
-      "utterance_id": "7312-92432",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7312-92432.flac |",
-      "real_speaker_id": "7312",
-      "position_frames": 170244
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 13.074955741437774
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 1.73237977749621,
-      "start_time": 8.35095987553074
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 3.8792958892851814,
-      "start_time": 0.21003385305995165
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5133/laugh/0069.wav",
-      "duration": 0.92,
-      "start_time": 0,
-      "speaker_id": "5133"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5133/laugh/0031.wav",
-      "duration": 0.8622338937304207,
-      "start_time": 24.112532513174422,
-      "speaker_id": "5133"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7312/laugh/0020.wav",
-      "duration": 0.9519212257295652,
-      "start_time": 31.048078774270436,
-      "speaker_id": "7312"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7312/cough/0011.wav",
-      "duration": 1.2,
-      "start_time": 27.52063214460286,
-      "speaker_id": "7312"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006544.json b/conversations/conv_006544.json
deleted file mode 100644
index 5b1ea1af961d8d0ad138573a027f7fb9151f1575..0000000000000000000000000000000000000000
--- a/conversations/conv_006544.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.17692292479464,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.091222184704191,
-      "duration": 6.091222184704191,
-      "start_frame": 0,
-      "duration_frames": 97459,
-      "overlap": false,
-      "utterance_id": "774-127930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.836244500597739,
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-      "overlap": false,
-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.63154913749796,
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-      "duration_frames": 79010,
-      "overlap": false,
-      "utterance_id": "774-127930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 97459
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.378756982519587,
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-      "utterance_id": "1250-135782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135782.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.93460535416866,
-      "end_time": 28.36230310940559,
-      "duration": 5.427697755236932,
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 64905
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.81859339725574,
-      "end_time": 31.17692292479464,
-      "duration": 3.358329527538899,
-      "start_frame": 445097,
-      "duration_frames": 53733,
-      "overlap": true,
-      "utterance_id": "774-127930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 176469
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/774/laugh/0039.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1250/laugh/0093.wav",
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-      "start_time": 16.178967660872853,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6925/cough/0070.wav",
-      "duration": 1.36,
-      "start_time": 28.39686608296841,
-      "speaker_id": "6925"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006548.json b/conversations/conv_006548.json
deleted file mode 100644
index d98132ce8d5d5e3fc7e137e1b717cbcbc27bb9f4..0000000000000000000000000000000000000000
--- a/conversations/conv_006548.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.959875591569272,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.9871626609468267,
-      "duration": 3.9871626609468267,
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-      "utterance_id": "7538-100044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100044.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "203",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3271-169289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.342280836216375,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132073.flac |",
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-      "utterance_id": "7538-100043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100043.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.33470690588122,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 88417
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3271/laugh/0031.wav",
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-      "start_time": 8.134024420559756,
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-      "duration": 1.28,
-      "start_time": 20.467956034728456,
-      "speaker_id": "7538"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006552.json b/conversations/conv_006552.json
deleted file mode 100644
index abe967bacffc7fac139bdfbaa209df6ea9113fca..0000000000000000000000000000000000000000
--- a/conversations/conv_006552.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2573-178450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-178450.flac |",
-      "real_speaker_id": "2573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.405081478165456,
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-      "duration": 6.09992558601006,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 14.3244276524236,
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-      "utterance_id": "2573-178449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-178449.flac |",
-      "real_speaker_id": "2573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.741781202846695,
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-      "utterance_id": "6294-85684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.890970277645938,
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-      "overlap": true,
-      "utterance_id": "8421-283462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 97598
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.488169879034647,
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-      "utterance_id": "2573-178449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-178449.flac |",
-      "real_speaker_id": "2573",
-      "position_frames": 53840
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 29.601000320219192,
-      "speaker_id": "2573"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_006559.json b/conversations/conv_006559.json
deleted file mode 100644
index c5cb43013a821b09fd5a0f2c0f8e1615ee418d9d..0000000000000000000000000000000000000000
--- a/conversations/conv_006559.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279367.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29405.flac |",
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-      "utterance_id": "8367-279366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279366.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "5022",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279367.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 89957
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29411.flac |",
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-      "position_frames": 82046
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "start_time": 29.114017842386605,
-      "speaker_id": "5022"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006564.json b/conversations/conv_006564.json
deleted file mode 100644
index 06f54767706b8bdb2809c3f22ad3be8ccd15fae0..0000000000000000000000000000000000000000
--- a/conversations/conv_006564.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.429121165412667,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "6807",
-      "position_frames": 93060
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 188226
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6807/laugh/0041.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1034"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006565.json b/conversations/conv_006565.json
deleted file mode 100644
index 2952e1251a824892e8a4aced117f3fa0b75c1617..0000000000000000000000000000000000000000
--- a/conversations/conv_006565.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "4955-28245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28245.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8316",
-      "position_frames": 154107
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 27.319591293259048,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8316/laugh/0022.wav",
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\ No newline at end of file
diff --git a/conversations/conv_006568.json b/conversations/conv_006568.json
deleted file mode 100644
index ee49627f4af8ea653662cbfcc9feb6969cb4af35..0000000000000000000000000000000000000000
--- a/conversations/conv_006568.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "434-132649",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132649.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154880.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.9611926337838,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132645.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 97028
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.432239617855362,
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-      "overlap": false,
-      "utterance_id": "6550-53320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53320.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.46297041634289,
-      "end_time": 32.0,
-      "duration": 1.5370295836571088,
-      "start_frame": 487407,
-      "duration_frames": 24592,
-      "overlap": false,
-      "utterance_id": "2356-154885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154885.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "2356"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006572.json b/conversations/conv_006572.json
deleted file mode 100644
index 2414ba1754a3976ddea09d31fabf390f7d3da2ff..0000000000000000000000000000000000000000
--- a/conversations/conv_006572.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8225-274375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274375.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-134149.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274375.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 56647
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-183988.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274376.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "4148",
-      "position_frames": 96357
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006575.json b/conversations/conv_006575.json
deleted file mode 100644
index 10505b62e46d0044fa00c614b634d34a75c92abf..0000000000000000000000000000000000000000
--- a/conversations/conv_006575.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4260-176853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176853.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7270.flac |",
-      "real_speaker_id": "2919",
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-      "real_speaker_id": "4260",
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-      "segment_id": "seg0003",
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-    {
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-      "real_speaker_id": "4331",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "4260",
-      "position_frames": 101946
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-      "duration": 0.88,
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-}
\ No newline at end of file
diff --git a/conversations/conv_006587.json b/conversations/conv_006587.json
deleted file mode 100644
index 5e8154adf060dc969a0cc979b581d3a418174f81..0000000000000000000000000000000000000000
--- a/conversations/conv_006587.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2113-132485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132485.flac |",
-      "real_speaker_id": "2113",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
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-      "real_speaker_id": "7657",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132485.flac |",
-      "real_speaker_id": "2113",
-      "position_frames": 71864
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "2997",
-      "position_frames": 98225
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132485.flac |",
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-      "position_frames": 127965
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "2113"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006591.json b/conversations/conv_006591.json
deleted file mode 100644
index 263dbe300752461cb06623ed596ac314a6e6bb97..0000000000000000000000000000000000000000
--- a/conversations/conv_006591.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.8650834420566875,
-      "duration": 4.8650834420566875,
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-      "overlap": false,
-      "utterance_id": "4195-17507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4195-17507.flac |",
-      "real_speaker_id": "4195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.119669337710314,
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-      "utterance_id": "1705-142318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
-      "real_speaker_id": "1705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.952219001095983,
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-      "duration_frames": 75383,
-      "overlap": false,
-      "utterance_id": "4195-186238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4195-186238.flac |",
-      "real_speaker_id": "4195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.188762133411952,
-      "end_time": 22.098706180525106,
-      "duration": 4.909944047113152,
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-      "overlap": false,
-      "utterance_id": "4195-186236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4195-186236.flac |",
-      "real_speaker_id": "4195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.442308390514427,
-      "end_time": 26.770279005638873,
-      "duration": 4.327970615124446,
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-      "overlap": false,
-      "utterance_id": "448-122800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.11702272364311,
-      "end_time": 32.0,
-      "duration": 4.88297727635689,
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-      "duration_frames": 78127,
-      "overlap": false,
-      "utterance_id": "4195-186238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4195-186238.flac |",
-      "real_speaker_id": "4195",
-      "position_frames": 75383
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "event_class": "Dishes",
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-      "start_time": 16.71839180943296,
-      "speaker_id": "4195"
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/448/laugh/0075.wav",
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-      "start_time": 26.89330722769481,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006600.json b/conversations/conv_006600.json
deleted file mode 100644
index b7b9371960de8d462c312ac833ef015ab06f9718..0000000000000000000000000000000000000000
--- a/conversations/conv_006600.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7445-94522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7445-94522.flac |",
-      "real_speaker_id": "7445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.707504379376277,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
-      "position_frames": 0
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-      "utterance_id": "7445-94523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7445-94523.flac |",
-      "real_speaker_id": "7445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.315156270048995,
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-      "duration_frames": 64043,
-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7445-94526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7445-94526.flac |",
-      "real_speaker_id": "7445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.538831396212657,
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-      "duration": 2.4611686037873426,
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-      "duration_frames": 39378,
-      "overlap": false,
-      "utterance_id": "7445-94522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7445-94522.flac |",
-      "real_speaker_id": "7445",
-      "position_frames": 103358
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8771/laugh/0072.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7445/laugh/0026.wav",
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-      "start_time": 11.197451221190011,
-      "speaker_id": "7445"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7445/cough/0012.wav",
-      "duration": 1.28,
-      "start_time": 11.018698201971674,
-      "speaker_id": "7445"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/cough/0095.wav",
-      "duration": 0.38142054227432204,
-      "start_time": 23.35085463482659,
-      "speaker_id": "1487"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006616.json b/conversations/conv_006616.json
deleted file mode 100644
index 68a1e2f94091c16207f802430ec6dda64f7ad29b..0000000000000000000000000000000000000000
--- a/conversations/conv_006616.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.249394398631356,
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-      "start_frame": 0,
-      "duration_frames": 99990,
-      "overlap": false,
-      "utterance_id": "4549-39615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39615.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.755714717857374,
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-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.104241287729756,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4923.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.162633119388158,
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-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.657926535572393,
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-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 97590
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 0.5350497235260008,
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-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 107791
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4549/laugh/0023.wav",
-      "duration": 1.52,
-      "start_time": 0,
-      "speaker_id": "4549"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006620.json b/conversations/conv_006620.json
deleted file mode 100644
index c2eb2a3e5b9d0fef3a22b25419700796a12d49a9..0000000000000000000000000000000000000000
--- a/conversations/conv_006620.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.62784407772485,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.19866766887749,
-      "duration": 6.19866766887749,
-      "start_frame": 0,
-      "duration_frames": 99178,
-      "overlap": false,
-      "utterance_id": "7912-105669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7912-105669.flac |",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_006627.json b/conversations/conv_006627.json
deleted file mode 100644
index aeae7d902c1021e7c27852b301bc6f85fdc6d389..0000000000000000000000000000000000000000
--- a/conversations/conv_006627.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 0
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_006631.json b/conversations/conv_006631.json
deleted file mode 100644
index f31942ad55db8079c0a9c52425d7cb81d755af03..0000000000000000000000000000000000000000
--- a/conversations/conv_006631.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_006636.json b/conversations/conv_006636.json
deleted file mode 100644
index fc6f187962cdb00e5c492615d6010706e19c6b8a..0000000000000000000000000000000000000000
--- a/conversations/conv_006636.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1018/cough/0050.wav",
-      "duration": 1.1154546344518137,
-      "start_time": 18.744513254367455,
-      "speaker_id": "1018"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/596/laugh/0069.wav",
-      "duration": 0.8472567603174688,
-      "start_time": 29.313502848167328,
-      "speaker_id": "596"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7384/cough/0020.wav",
-      "duration": 1.0325823712891118,
-      "start_time": 30.967417628710887,
-      "speaker_id": "7384"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006637.json b/conversations/conv_006637.json
deleted file mode 100644
index bbedb3eaed0cb40d84cc25ec3159189255308048..0000000000000000000000000000000000000000
--- a/conversations/conv_006637.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.428197846176428,
-      "duration": 5.428197846176428,
-      "start_frame": 0,
-      "duration_frames": 86851,
-      "overlap": false,
-      "utterance_id": "5126-36956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-36956.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.424967994513713,
-      "end_time": 11.601120126488771,
-      "duration": 5.1761521319750585,
-      "start_frame": 102799,
-      "duration_frames": 82818,
-      "overlap": false,
-      "utterance_id": "5126-34483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-34483.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.635003459550141,
-      "end_time": 15.079213045902797,
-      "duration": 3.4442095863526556,
-      "start_frame": 186160,
-      "duration_frames": 55107,
-      "overlap": true,
-      "utterance_id": "487-129440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.35486435861734,
-      "end_time": 21.168939959791263,
-      "duration": 4.814075601173923,
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-      "duration_frames": 77025,
-      "overlap": false,
-      "utterance_id": "5126-27504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-27504.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.650154463881773,
-      "end_time": 25.80609335308949,
-      "duration": 4.155938889207718,
-      "start_frame": 346402,
-      "duration_frames": 66495,
-      "overlap": false,
-      "utterance_id": "487-129440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 55107
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.976515172512862,
-      "end_time": 30.85121929902512,
-      "duration": 3.8747041265122584,
-      "start_frame": 431624,
-      "duration_frames": 61995,
-      "overlap": false,
-      "utterance_id": "5126-36956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-36956.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 86851
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.955363423899264,
-      "end_time": 32.0,
-      "duration": 1.0446365761007357,
-      "start_frame": 495285,
-      "duration_frames": 16714,
-      "overlap": false,
-      "utterance_id": "487-129440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 121602
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
-      "duration": 1.7822009847890992,
-      "start_time": 14.00727664308108
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5126/cough/0060.wav",
-      "duration": 0.92,
-      "start_time": 5.48609203869671,
-      "speaker_id": "5126"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5126/cough/0009.wav",
-      "duration": 1.08,
-      "start_time": 5.155988186699047,
-      "speaker_id": "5126"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5126/laugh/0081.wav",
-      "duration": 1.16,
-      "start_time": 21.37985976152577,
-      "speaker_id": "5126"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/487/cough/0057.wav",
-      "duration": 0.6567669641103835,
-      "start_time": 20.96109462662545,
-      "speaker_id": "487"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/487/laugh/0054.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "487"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006641.json b/conversations/conv_006641.json
deleted file mode 100644
index a360897da57959c56e34028b93bcc98fc0abb6d0..0000000000000000000000000000000000000000
--- a/conversations/conv_006641.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.663263740937462,
-      "duration": 5.663263740937462,
-      "start_frame": 0,
-      "duration_frames": 90612,
-      "overlap": false,
-      "utterance_id": "2827-170440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170440.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.882443800344687,
-      "end_time": 12.518665621973199,
-      "duration": 6.636221821628512,
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-      "duration_frames": 106179,
-      "overlap": false,
-      "utterance_id": "6798-77737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77737.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.658914660765095,
-      "end_time": 17.75481334256455,
-      "duration": 5.095898681799455,
-      "start_frame": 202542,
-      "duration_frames": 81534,
-      "overlap": false,
-      "utterance_id": "2827-170438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.80981615755672,
-      "end_time": 22.534025272075397,
-      "duration": 3.724209114518677,
-      "start_frame": 300957,
-      "duration_frames": 59587,
-      "overlap": false,
-      "utterance_id": "6798-77736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77736.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.49445318274928,
-      "end_time": 28.356186037804527,
-      "duration": 4.861732855055249,
-      "start_frame": 375911,
-      "duration_frames": 77787,
-      "overlap": false,
-      "utterance_id": "6798-77740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77740.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.937756483584625,
-      "end_time": 32.0,
-      "duration": 3.062243516415375,
-      "start_frame": 463004,
-      "duration_frames": 48995,
-      "overlap": false,
-      "utterance_id": "23-124439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_11.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6798/cough/0108.wav",
-      "duration": 1.28,
-      "start_time": 4.43902529902677,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2827/laugh/0071.wav",
-      "duration": 0.5976070297436682,
-      "start_time": 14.399501541308794,
-      "speaker_id": "2827"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/23/cough/0075.wav",
-      "duration": 1.0085214641661941,
-      "start_time": 30.991478535833807,
-      "speaker_id": "23"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006657.json b/conversations/conv_006657.json
deleted file mode 100644
index 019d83c8a79be6fc5a597c5fc76047e32c713fd7..0000000000000000000000000000000000000000
--- a/conversations/conv_006657.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.08820842524843,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2196-170151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-170151.flac |",
-      "real_speaker_id": "2196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.274131331068267,
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-      "utterance_id": "40-121026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-121026.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.024273135350386,
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-      "overlap": false,
-      "utterance_id": "671-131030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.233902302567973,
-      "end_time": 21.567169835929985,
-      "duration": 4.333267533362012,
-      "start_frame": 275742,
-      "duration_frames": 69332,
-      "overlap": true,
-      "utterance_id": "40-222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.22937078178335,
-      "end_time": 28.95806026681953,
-      "duration": 5.728689485036183,
-      "start_frame": 371669,
-      "duration_frames": 91659,
-      "overlap": false,
-      "utterance_id": "671-131030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 70301
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.424295711984232,
-      "end_time": 31.08820842524843,
-      "duration": 2.663912713264196,
-      "start_frame": 454788,
-      "duration_frames": 42622,
-      "overlap": true,
-      "utterance_id": "671-131040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_5.wav",
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-      "start_time": 12.903363839512595
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2196/cough/0085.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/40/cough/0042.wav",
-      "duration": 0.8303033575289107,
-      "start_time": 12.15156753047252,
-      "speaker_id": "40"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006661.json b/conversations/conv_006661.json
deleted file mode 100644
index de8255ad1b636b1a0984c60bf6734492250555c9..0000000000000000000000000000000000000000
--- a/conversations/conv_006661.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8865187139132016,
-      "duration": 3.8865187139132016,
-      "start_frame": 0,
-      "duration_frames": 62184,
-      "overlap": false,
-      "utterance_id": "2427-154671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154671.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.389578888011179,
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-      "overlap": false,
-      "utterance_id": "6099-69550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-69550.flac |",
-      "real_speaker_id": "6099",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.25027908817703,
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-      "overlap": false,
-      "utterance_id": "2427-154736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154736.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-69550.flac |",
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-    {
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-      "real_speaker_id": "2427",
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-    {
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-      "duration_frames": 50373,
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-      "utterance_id": "6099-230928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-230928.flac |",
-      "real_speaker_id": "6099",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 26.979696964625624,
-      "end_time": 32.0,
-      "duration": 5.020303035374376,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-67860.flac |",
-      "real_speaker_id": "6099",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2427/cough/0034.wav",
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-      "start_time": 3.9927057546032874,
-      "speaker_id": "2427"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2427/cough/0095.wav",
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-      "speaker_id": "2427"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2427/cough/0039.wav",
-      "duration": 0.5049565734497873,
-      "start_time": 16.12690863195434,
-      "speaker_id": "2427"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006666.json b/conversations/conv_006666.json
deleted file mode 100644
index aeb8b5c8f002606c0472182a417f768243c6d049..0000000000000000000000000000000000000000
--- a/conversations/conv_006666.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.7785713577362854,
-      "duration": 3.7785713577362854,
-      "start_frame": 0,
-      "duration_frames": 60457,
-      "overlap": false,
-      "utterance_id": "7837-109173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.514185438298232,
-      "end_time": 7.851592769438019,
-      "duration": 3.3374073311397874,
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-      "overlap": false,
-      "utterance_id": "1569-141081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.602735799593568,
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-      "overlap": true,
-      "utterance_id": "810-130096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130096.flac |",
-      "real_speaker_id": "810",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.980212728868432,
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-      "duration": 3.7170792227158627,
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-      "duration_frames": 59473,
-      "overlap": false,
-      "utterance_id": "810-130095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130095.flac |",
-      "real_speaker_id": "810",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 17.94612379448483,
-      "end_time": 22.626587548940105,
-      "duration": 4.680463754455274,
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-      "duration_frames": 74887,
-      "overlap": false,
-      "utterance_id": "1569-141082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141082.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.588840586416588,
-      "end_time": 29.362858816330526,
-      "duration": 5.774018229913938,
-      "start_frame": 377421,
-      "duration_frames": 92384,
-      "overlap": false,
-      "utterance_id": "810-130096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130096.flac |",
-      "real_speaker_id": "810",
-      "position_frames": 89037
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.78805238855488,
-      "end_time": 32.0,
-      "duration": 2.211947611445119,
-      "start_frame": 476608,
-      "duration_frames": 35391,
-      "overlap": false,
-      "utterance_id": "7837-109173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 60457
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1569/laugh/0024.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.1922215472274427,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7837/cough/0010.wav",
-      "duration": 0.9484971689082782,
-      "start_time": 31.05150283109172,
-      "speaker_id": "7837"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006670.json b/conversations/conv_006670.json
deleted file mode 100644
index df8f40c8bc8db17e9a3efc4546526043692991a8..0000000000000000000000000000000000000000
--- a/conversations/conv_006670.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.7109124648241,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.6472709010529565,
-      "duration": 4.6472709010529565,
-      "start_frame": 0,
-      "duration_frames": 74356,
-      "overlap": false,
-      "utterance_id": "8240-116288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-116288.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.320261805367333,
-      "end_time": 10.659727365831776,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-3992.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.807187866066268,
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-      "duration_frames": 101318,
-      "overlap": false,
-      "utterance_id": "4443-11591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-11591.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.492081746515346,
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-      "overlap": false,
-      "utterance_id": "8240-283234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-283234.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.871612712154143,
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-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.642150720182197,
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-      "duration": 1.068761744641904,
-      "start_frame": 490274,
-      "duration_frames": 17100,
-      "overlap": true,
-      "utterance_id": "4443-11591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-11591.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 101318
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8240/laugh/0027.wav",
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-      "start_time": 0,
-      "speaker_id": "8240"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4443/cough/0087.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4443/laugh/0006.wav",
-      "duration": 0.9431739338585116,
-      "start_time": 31.05682606614149,
-      "speaker_id": "4443"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006677.json b/conversations/conv_006677.json
deleted file mode 100644
index cfecd9198877ceceda559ff8562981b44c0d4364..0000000000000000000000000000000000000000
--- a/conversations/conv_006677.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7828-105171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105171.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.3535751882071967,
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-      "utterance_id": "1260-139266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139266.flac |",
-      "real_speaker_id": "1260",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "7828-105179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139266.flac |",
-      "real_speaker_id": "1260",
-      "position_frames": 57393
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.53058518782223,
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-      "utterance_id": "7828-105179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 109948
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.41690089978505,
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-      "duration": 4.583099100214952,
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-      "duration_frames": 73329,
-      "overlap": false,
-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-      "start_time": 11.794961342808346
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1260/laugh/0018.wav",
-      "duration": 1.56,
-      "start_time": 7.019567136374456,
-      "speaker_id": "1260"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1260/cough/0001.wav",
-      "duration": 0.96,
-      "start_time": 19.01683297746833,
-      "speaker_id": "1260"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006682.json b/conversations/conv_006682.json
deleted file mode 100644
index 1bb88e611dd0c620623716fdb9b218a91211d34c..0000000000000000000000000000000000000000
--- a/conversations/conv_006682.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.501364259352689,
-      "duration": 5.501364259352689,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8631-281208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-281208.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.4366857679325475,
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-      "utterance_id": "2775-134792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-134792.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.808205093687775,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-160958.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 73281
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-      "speaker_id": "8631"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006689.json b/conversations/conv_006689.json
deleted file mode 100644
index 7e0434fb211c47609e96ceb3334c5499da033e4f..0000000000000000000000000000000000000000
--- a/conversations/conv_006689.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
-      "real_speaker_id": "6846",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
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-      "real_speaker_id": "3889",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 25.973650514651734,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
-      "real_speaker_id": "6846",
-      "position_frames": 144046
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_006694.json b/conversations/conv_006694.json
deleted file mode 100644
index 18859ac3871f9b55f48be20ad8e7b64859a65e38..0000000000000000000000000000000000000000
--- a/conversations/conv_006694.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "3757",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57646.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134143.flac |",
-      "real_speaker_id": "3757",
-      "position_frames": 103806
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6009-57643",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57643.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 90293
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-      "event_class": "laugh",
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-      "duration": 1.24,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6009"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006698.json b/conversations/conv_006698.json
deleted file mode 100644
index e5bbab0f57cd080e6c918c9034ce9dd915cbbb09..0000000000000000000000000000000000000000
--- a/conversations/conv_006698.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-128030.flac |",
-      "real_speaker_id": "348",
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-    {
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-      "real_speaker_id": "792",
-      "position_frames": 80142
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-    {
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-      "real_speaker_id": "792",
-      "position_frames": 170114
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6726-56640",
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-      "real_speaker_id": "6726",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/792/laugh/0062.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6726/laugh/0026.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006704.json b/conversations/conv_006704.json
deleted file mode 100644
index 03fa32344f02aba0d35228072cb38f2abc75f812..0000000000000000000000000000000000000000
--- a/conversations/conv_006704.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.798965143778464,
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-      "real_speaker_id": "6131",
-      "position_frames": 0
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006708.json b/conversations/conv_006708.json
deleted file mode 100644
index e1a7ece7defc76a7720ed4018e6e890c4d62839b..0000000000000000000000000000000000000000
--- a/conversations/conv_006708.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 199187
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 58579
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-    {
-      "segment_id": "seg0005",
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-      "duration": 3.1506250940171725,
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-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 261472
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006709.json b/conversations/conv_006709.json
deleted file mode 100644
index 6f29d5fa9fb053e07a9de88b7e0867c6dd2b006c..0000000000000000000000000000000000000000
--- a/conversations/conv_006709.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-121899.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-126796.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "157",
-      "position_frames": 59004
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-    {
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-      "utterance_id": "157-121907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-121907.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_006712.json b/conversations/conv_006712.json
deleted file mode 100644
index 7028f84583660e3f186eea2ae9a7e1e356acff7f..0000000000000000000000000000000000000000
--- a/conversations/conv_006712.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 106675
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.40395838143848,
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-      "overlap": false,
-      "utterance_id": "242-122626",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122626.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.54140213342118,
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-      "duration": 0.4585978665788204,
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-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 103292
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_006723.json b/conversations/conv_006723.json
deleted file mode 100644
index 563ca1abec5a02fa3d7d22995f3fdc727dfff3d6..0000000000000000000000000000000000000000
--- a/conversations/conv_006723.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "duration_frames": 100976,
-      "overlap": true,
-      "utterance_id": "7215-91630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_006724.json b/conversations/conv_006724.json
deleted file mode 100644
index 1da5abdaed706cc9e1dc641d68dac50eb2bc439a..0000000000000000000000000000000000000000
--- a/conversations/conv_006724.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-39921.flac |",
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-      "real_speaker_id": "5163",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_006728.json b/conversations/conv_006728.json
deleted file mode 100644
index f0f7c3adb11e8b01120484bf5abb9700579417e6..0000000000000000000000000000000000000000
--- a/conversations/conv_006728.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5136",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
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-      "real_speaker_id": "7475",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-53512.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 196494
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006732.json b/conversations/conv_006732.json
deleted file mode 100644
index bfc4114bbbf272cd93e97a7f8531de505dd4e39f..0000000000000000000000000000000000000000
--- a/conversations/conv_006732.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5756-80689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-80689.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-7601.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "2911",
-      "position_frames": 51611
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-    {
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-      "utterance_id": "5756-305214",
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-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "2911"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006735.json b/conversations/conv_006735.json
deleted file mode 100644
index 19760b43e5edd2824be7734331e79d7fadc99979..0000000000000000000000000000000000000000
--- a/conversations/conv_006735.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_006745.json b/conversations/conv_006745.json
deleted file mode 100644
index 91bea449cdde814790d51a2cd90bb9101ce665ae..0000000000000000000000000000000000000000
--- a/conversations/conv_006745.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6339-65554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_006749.json b/conversations/conv_006749.json
deleted file mode 100644
index be9ad3210547301551fe15249a51a13dd993c7ab..0000000000000000000000000000000000000000
--- a/conversations/conv_006749.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "6509",
-      "position_frames": 97155
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "4447",
-      "position_frames": 67671
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_006753.json b/conversations/conv_006753.json
deleted file mode 100644
index 8677cb1b357dc12fee2ed22ac8b6fdb8f11c33d1..0000000000000000000000000000000000000000
--- a/conversations/conv_006753.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
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-  "foreground_events": [
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-      "speaker_id": "227"
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-      "duration": 0.96,
-      "start_time": 22.342582884600514,
-      "speaker_id": "8527"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006762.json b/conversations/conv_006762.json
deleted file mode 100644
index 0258202bca6a8a056058fcc4fe48b9674def5580..0000000000000000000000000000000000000000
--- a/conversations/conv_006762.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
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-      "utterance_id": "2592-5341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-5341.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.9698559561877405,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185125.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3864-185125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185125.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 80149
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.54300432172897,
-      "end_time": 23.814175001616633,
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-      "utterance_id": "434-132650",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132650.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.96181825920937,
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-      "utterance_id": "3864-185126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185126.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.358090104893016,
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-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2592/laugh/0001.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.6848165066974408,
-      "start_time": 31.31518349330256,
-      "speaker_id": "2592"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006765.json b/conversations/conv_006765.json
deleted file mode 100644
index 02d103cfed1cf29ef1ae56a8140916d658cd5d1b..0000000000000000000000000000000000000000
--- a/conversations/conv_006765.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.65638767421758,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4433-16802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.784404111335903,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-126296.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.317185220249797,
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-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 89060
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4433-16802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 80130
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-      "start_time": 5.8230352648572286
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4433/laugh/0030.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4433/cough/0024.wav",
-      "duration": 0.34287369987616156,
-      "start_time": 31.65712630012384,
-      "speaker_id": "4433"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006769.json b/conversations/conv_006769.json
deleted file mode 100644
index 29202ebf59a554421a1cc9bc3fa448547ebd3794..0000000000000000000000000000000000000000
--- a/conversations/conv_006769.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1844-145713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-145713.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.519757197737892,
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-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.30554738603484,
-      "end_time": 27.95606507019934,
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-      "duration_frames": 58408,
-      "overlap": false,
-      "utterance_id": "5567-22447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22447.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.269834681376146,
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-      "duration": 3.730165318623854,
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-      "overlap": false,
-      "utterance_id": "5567-22447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22447.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 58408
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006772.json b/conversations/conv_006772.json
deleted file mode 100644
index cec073b23e0c3692fc3d4fa0521af23c7df882c4..0000000000000000000000000000000000000000
--- a/conversations/conv_006772.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.202252608696924,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "505-125274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125274.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.557747937163762,
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-      "overlap": false,
-      "utterance_id": "4189-115685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4189-115685.flac |",
-      "real_speaker_id": "4189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.486022947478535,
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-      "duration": 5.2506105802365575,
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-      "overlap": false,
-      "utterance_id": "5287-39165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5287-39165.flac |",
-      "real_speaker_id": "5287",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125272.flac |",
-      "real_speaker_id": "505",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "5287",
-      "position_frames": 84009
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4189/laugh/0087.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "5287"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006773.json b/conversations/conv_006773.json
deleted file mode 100644
index f21aa9ac958d006bcd8818ccfbc955e68e82735b..0000000000000000000000000000000000000000
--- a/conversations/conv_006773.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.989359299094357,
-      "duration": 6.989359299094357,
-      "start_frame": 0,
-      "duration_frames": 111829,
-      "overlap": false,
-      "utterance_id": "2574-128303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128303.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.942932866719538,
-      "end_time": 13.082396221853354,
-      "duration": 5.139463355133816,
-      "start_frame": 127086,
-      "duration_frames": 82231,
-      "overlap": false,
-      "utterance_id": "2574-128303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128303.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 111829
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.956106088951065,
-      "end_time": 17.223247068591355,
-      "duration": 3.2671409796402897,
-      "start_frame": 223297,
-      "duration_frames": 52274,
-      "overlap": false,
-      "utterance_id": "5164-19197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-19197.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.718138129149718,
-      "end_time": 23.024749930429785,
-      "duration": 5.306611801280066,
-      "start_frame": 283490,
-      "duration_frames": 84905,
-      "overlap": false,
-      "utterance_id": "2574-128303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128303.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 194060
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.672734370257402,
-      "end_time": 26.745760135660003,
-      "duration": 3.073025765402602,
-      "start_frame": 378763,
-      "duration_frames": 49168,
-      "overlap": false,
-      "utterance_id": "5164-26980",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-26980.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.73119965639371,
-      "end_time": 32.0,
-      "duration": 4.268800343606291,
-      "start_frame": 443699,
-      "duration_frames": 68300,
-      "overlap": false,
-      "utterance_id": "4243-14929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-14929.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_18.wav",
-      "duration": 0.5649433106575964,
-      "start_time": 9.034195800687243
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
-      "duration": 1.803154283602996,
-      "start_time": 14.06725558041391
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2574/cough/0032.wav",
-      "duration": 0.9094040654263011,
-      "start_time": 7.113122931543366,
-      "speaker_id": "2574"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5164/laugh/0022.wav",
-      "duration": 1.5553574803468422,
-      "start_time": 23.980596864035334,
-      "speaker_id": "5164"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006774.json b/conversations/conv_006774.json
deleted file mode 100644
index fd8c83f758becbf914b472cf6f798fafd4114bb9..0000000000000000000000000000000000000000
--- a/conversations/conv_006774.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.503968900001885,
-      "duration": 5.503968900001885,
-      "start_frame": 0,
-      "duration_frames": 88063,
-      "overlap": false,
-      "utterance_id": "6399-278844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278844.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.765073274911534,
-      "end_time": 10.425171053689521,
-      "duration": 4.6600977787779865,
-      "start_frame": 92241,
-      "duration_frames": 74561,
-      "overlap": false,
-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.24883160588562,
-      "end_time": 15.819265576919328,
-      "duration": 4.570433971033708,
-      "start_frame": 179981,
-      "duration_frames": 73126,
-      "overlap": false,
-      "utterance_id": "6399-278844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278844.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 88063
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.28402921357375,
-      "end_time": 21.223065414611373,
-      "duration": 4.939036201037624,
-      "start_frame": 260544,
-      "duration_frames": 79024,
-      "overlap": false,
-      "utterance_id": "1336-138115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138115.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.633974143726306,
-      "end_time": 25.095525864710567,
-      "duration": 3.461551720984261,
-      "start_frame": 346143,
-      "duration_frames": 55384,
-      "overlap": false,
-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 74561
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.663426641875457,
-      "end_time": 29.524267440881598,
-      "duration": 3.8608407990061417,
-      "start_frame": 410614,
-      "duration_frames": 61773,
-      "overlap": false,
-      "utterance_id": "1336-138113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138113.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.025466345754722,
-      "end_time": 32.0,
-      "duration": 1.9745336542452776,
-      "start_frame": 480407,
-      "duration_frames": 31592,
-      "overlap": false,
-      "utterance_id": "6399-278849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278849.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
-      "duration": 17.968863196513237,
-      "start_time": 0.017246260645982565
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
-      "duration": 4.820891661747004,
-      "start_time": 26.508973041711613
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
-      "duration": 0.7175510204081633,
-      "start_time": 2.7796571338312916
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6399/laugh/0045.wav",
-      "duration": 1.32,
-      "start_time": 5.687649840886763,
-      "speaker_id": "6399"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6399/laugh/0022.wav",
-      "duration": 0.6647620421662963,
-      "start_time": 31.335237957833705,
-      "speaker_id": "6399"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006786.json b/conversations/conv_006786.json
deleted file mode 100644
index 733d6b8d2682715bd479f25829a86f3f217da961..0000000000000000000000000000000000000000
--- a/conversations/conv_006786.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.243549362394035,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.951454287849843,
-      "duration": 4.951454287849843,
-      "start_frame": 0,
-      "duration_frames": 79223,
-      "overlap": false,
-      "utterance_id": "6494-60774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60774.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.976111701408737,
-      "end_time": 12.453348073135299,
-      "duration": 6.477236371726562,
-      "start_frame": 95617,
-      "duration_frames": 103635,
-      "overlap": false,
-      "utterance_id": "8753-297946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297946.flac |",
-      "real_speaker_id": "8753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.483201493224904,
-      "end_time": 19.157981631179883,
-      "duration": 5.674780137954979,
-      "start_frame": 215731,
-      "duration_frames": 90796,
-      "overlap": false,
-      "utterance_id": "6494-60800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60800.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.68681315916028,
-      "end_time": 26.018407506076034,
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-      "duration_frames": 101305,
-      "overlap": false,
-      "utterance_id": "7644-104722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.940102006204278,
-      "end_time": 31.243549362394035,
-      "duration": 4.303447356189759,
-      "start_frame": 431041,
-      "duration_frames": 68855,
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-      "utterance_id": "6494-60800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60800.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 90796
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
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-      "start_time": 13.701556321660739
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7644/cough/0040.wav",
-      "duration": 0.41821981113786877,
-      "start_time": 26.10553076582459,
-      "speaker_id": "7644"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6494/cough/0105.wav",
-      "duration": 0.5994408394429408,
-      "start_time": 31.40055916055706,
-      "speaker_id": "6494"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006790.json b/conversations/conv_006790.json
deleted file mode 100644
index a5d371543cdd73892873843135fc049f44ae73f4..0000000000000000000000000000000000000000
--- a/conversations/conv_006790.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.70893071045746,
-      "duration": 4.70893071045746,
-      "start_frame": 0,
-      "duration_frames": 75342,
-      "overlap": false,
-      "utterance_id": "8321-284222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-284222.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.066834948683498,
-      "end_time": 10.66777841299027,
-      "duration": 5.600943464306771,
-      "start_frame": 81069,
-      "duration_frames": 89615,
-      "overlap": false,
-      "utterance_id": "6687-119383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119383.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.606804788016856,
-      "end_time": 15.675346720403564,
-      "duration": 4.068541932386708,
-      "start_frame": 185708,
-      "duration_frames": 65096,
-      "overlap": false,
-      "utterance_id": "8321-284207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-284207.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.836883179830242,
-      "end_time": 19.881063070211795,
-      "duration": 4.044179890381551,
-      "start_frame": 253390,
-      "duration_frames": 64706,
-      "overlap": false,
-      "utterance_id": "5278-40897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40897.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.19252970046193,
-      "end_time": 23.837776692532742,
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-      "duration_frames": 74323,
-      "overlap": true,
-      "utterance_id": "8321-274737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-274737.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.32110778814782,
-      "end_time": 32.0,
-      "duration": 6.67889221185218,
-      "start_frame": 405137,
-      "duration_frames": 106862,
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-      "utterance_id": "5278-40897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40897.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 64706
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-      "start_time": 13.403480457858294
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
-      "duration": 0.6760544217687074,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5278/cough/0047.wav",
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-      "start_time": 15.04624151548162,
-      "speaker_id": "5278"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006801.json b/conversations/conv_006801.json
deleted file mode 100644
index bdafa8f37b28fc5a52cd06b66ab5780578548eb7..0000000000000000000000000000000000000000
--- a/conversations/conv_006801.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.1619851791808653,
-      "duration": 3.1619851791808653,
-      "start_frame": 0,
-      "duration_frames": 50591,
-      "overlap": false,
-      "utterance_id": "3780-177784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177784.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.147614238122824,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177784.flac |",
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_006817.json b/conversations/conv_006817.json
deleted file mode 100644
index e88b24d340cb8c7246ab29c86f2d2a1a2e782f38..0000000000000000000000000000000000000000
--- a/conversations/conv_006817.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286257.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_006821.json b/conversations/conv_006821.json
deleted file mode 100644
index 0871ebef2484da65650fe46d29d889d56120713d..0000000000000000000000000000000000000000
--- a/conversations/conv_006821.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2930",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_006826.json b/conversations/conv_006826.json
deleted file mode 100644
index fdc8bcabe2f8dce6e13396612ed8087a78cb48ab..0000000000000000000000000000000000000000
--- a/conversations/conv_006826.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7498-99157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99157.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4910/laugh/0024.wav",
-      "duration": 0.82,
-      "start_time": 9.589133362522476,
-      "speaker_id": "4910"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4910/cough/0048.wav",
-      "duration": 0.637778542744571,
-      "start_time": 22.572398047713445,
-      "speaker_id": "4910"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006836.json b/conversations/conv_006836.json
deleted file mode 100644
index 9d9167125373bbda50c90641826b58324efed753..0000000000000000000000000000000000000000
--- a/conversations/conv_006836.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.82304509914507,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.3303693032934625,
-      "duration": 5.3303693032934625,
-      "start_frame": 0,
-      "duration_frames": 85285,
-      "overlap": false,
-      "utterance_id": "6437-66173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6437-66173.flac |",
-      "real_speaker_id": "6437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.942488362175126,
-      "end_time": 11.59793460361769,
-      "duration": 5.655446241442563,
-      "start_frame": 95079,
-      "duration_frames": 90487,
-      "overlap": false,
-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.833981229029606,
-      "end_time": 15.51981584153836,
-      "duration": 3.6858346125087547,
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-      "duration_frames": 58973,
-      "overlap": false,
-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.73825506292485,
-      "end_time": 20.664212851996062,
-      "duration": 4.9259577890712105,
-      "start_frame": 251812,
-      "duration_frames": 78815,
-      "overlap": false,
-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 90487
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.82843253693085,
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-      "duration_frames": 93161,
-      "overlap": false,
-      "utterance_id": "6437-66173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6437-66173.flac |",
-      "real_speaker_id": "6437",
-      "position_frames": 85285
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.0758847291923,
-      "end_time": 31.82304509914507,
-      "duration": 4.747160369952771,
-      "start_frame": 433214,
-      "duration_frames": 75954,
-      "overlap": false,
-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 58973
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
-      "duration": 2.9413899097856424,
-      "start_time": 18.91956051000638
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6792/cough/0046.wav",
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-      "start_time": 20.695502989556747,
-      "speaker_id": "6792"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006837.json b/conversations/conv_006837.json
deleted file mode 100644
index c7478d2d422953fb217443c769228570cdfbc8e2..0000000000000000000000000000000000000000
--- a/conversations/conv_006837.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.955460871942044,
-      "duration": 5.955460871942044,
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-      "overlap": false,
-      "utterance_id": "7258-91906",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91906.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.531849949488927,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5407.flac |",
-      "real_speaker_id": "3098",
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "3098-5407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5407.flac |",
-      "real_speaker_id": "3098",
-      "position_frames": 90254
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.133658662500014,
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-      "utterance_id": "7258-91905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91905.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.718856572362817,
-      "end_time": 30.697935795725982,
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-      "overlap": false,
-      "utterance_id": "5093-29101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-29101.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.33352134793524,
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-      "duration": 0.666478652064761,
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-      "utterance_id": "3098-5407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5407.flac |",
-      "real_speaker_id": "3098",
-      "position_frames": 182293
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "duration": 1.08,
-      "start_time": 17.890076319810085,
-      "speaker_id": "7258"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006840.json b/conversations/conv_006840.json
deleted file mode 100644
index 039c706b96225d97ea89f0beda2486fca23fde27..0000000000000000000000000000000000000000
--- a/conversations/conv_006840.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5039-1188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1188.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.8833103038097105,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1188.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 80327
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 94501,
-      "overlap": false,
-      "utterance_id": "8421-283462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 62661
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.960655914913794,
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-      "overlap": false,
-      "utterance_id": "5039-1188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1188.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 145204
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4480-44312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 26.594198661007024,
-      "speaker_id": "4480"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006856.json b/conversations/conv_006856.json
deleted file mode 100644
index 91bc4f33a5de454c10c8a259bfc516a6d6504808..0000000000000000000000000000000000000000
--- a/conversations/conv_006856.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8063-274116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274116.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.606155248479427,
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-      "duration_frames": 97924,
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-      "utterance_id": "927-132466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132466.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.413632245330005,
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-      "duration_frames": 50209,
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-      "utterance_id": "927-132462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132462.flac |",
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-      "position_frames": 0
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-    {
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-    {
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-      "segment_id": "seg0006",
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-      "event_class": "laugh",
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-      "duration": 1.56,
-      "start_time": 21.007010105443264,
-      "speaker_id": "2090"
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-      "duration": 0.5004928011812672,
-      "start_time": 25.221936022573257,
-      "speaker_id": "2090"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006860.json b/conversations/conv_006860.json
deleted file mode 100644
index 92f245bce0a120adf784dc3b85f503da0072007b..0000000000000000000000000000000000000000
--- a/conversations/conv_006860.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.11603392120925,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98877.flac |",
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-      "position_frames": 0
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-      "utterance_id": "7398-98877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98877.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 90407
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.677987400872677,
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-      "overlap": false,
-      "utterance_id": "6668-34612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34612.flac |",
-      "real_speaker_id": "6668",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.476147737267638,
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-      "duration": 5.665064746077652,
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-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 70572
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.232765441115525,
-      "end_time": 32.0,
-      "duration": 2.767234558884475,
-      "start_frame": 467724,
-      "duration_frames": 44275,
-      "overlap": false,
-      "utterance_id": "6668-34648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34648.flac |",
-      "real_speaker_id": "6668",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 0.95187152402134,
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-      "speaker_id": "6668"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006876.json b/conversations/conv_006876.json
deleted file mode 100644
index 6b7a9f3049fb33379117cb81bfdaa934ab0e8ffa..0000000000000000000000000000000000000000
--- a/conversations/conv_006876.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19588320247403,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1553-140048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140048.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 0
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-      "utterance_id": "6555-398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.99469848982112,
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-      "overlap": false,
-      "utterance_id": "1553-140047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140047.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 52351
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.395493831857458,
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-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 56451
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1733/laugh/0098.wav",
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-      "speaker_id": "1733"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006883.json b/conversations/conv_006883.json
deleted file mode 100644
index eb103f1229b71bd48109fbd629f8c97d8f9d800a..0000000000000000000000000000000000000000
--- a/conversations/conv_006883.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28402.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_006895.json b/conversations/conv_006895.json
deleted file mode 100644
index 7fd558b1c2c5c2f3088e7c96c61eb200b1d3e03d..0000000000000000000000000000000000000000
--- a/conversations/conv_006895.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.30400965758322,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "1171-134968",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_0.wav",
-      "duration": 0.8010430839002267,
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-      "start_time": 0,
-      "speaker_id": "1171"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5092/laugh/0119.wav",
-      "duration": 1.56,
-      "start_time": 6.913772654806784,
-      "speaker_id": "5092"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5092/laugh/0094.wav",
-      "duration": 1.0314693756840254,
-      "start_time": 18.312116329029813,
-      "speaker_id": "5092"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8250/laugh/0086.wav",
-      "duration": 0.7132925579740557,
-      "start_time": 17.20046274433544,
-      "speaker_id": "8250"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1171/cough/0026.wav",
-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "1171"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006899.json b/conversations/conv_006899.json
deleted file mode 100644
index ea7e3d925667b35920cea66b69abe9c9c99061ab..0000000000000000000000000000000000000000
--- a/conversations/conv_006899.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6676541182576408,
-      "duration": 3.6676541182576408,
-      "start_frame": 0,
-      "duration_frames": 58682,
-      "overlap": false,
-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.878900393238708,
-      "end_time": 8.46963783439591,
-      "duration": 4.590737441157201,
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-      "duration_frames": 73451,
-      "overlap": true,
-      "utterance_id": "4352-10941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-10941.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.426202099951057,
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-      "duration": 6.44679724590328,
-      "start_frame": 150819,
-      "duration_frames": 103148,
-      "overlap": false,
-      "utterance_id": "7498-99157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99157.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.906472803278504,
-      "end_time": 21.239288757501484,
-      "duration": 4.332815954222978,
-      "start_frame": 270503,
-      "duration_frames": 69325,
-      "overlap": false,
-      "utterance_id": "4352-893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-893.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.893215583919414,
-      "end_time": 28.349543665535013,
-      "duration": 6.456328081615599,
-      "start_frame": 350291,
-      "duration_frames": 103301,
-      "overlap": false,
-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 58682
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.867333730474048,
-      "end_time": 32.0,
-      "duration": 3.132666269525952,
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-      "duration_frames": 50122,
-      "overlap": false,
-      "utterance_id": "4352-10940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-10940.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1098/laugh/0007.wav",
-      "duration": 1.08,
-      "start_time": 28.376036964277006,
-      "speaker_id": "1098"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006905.json b/conversations/conv_006905.json
deleted file mode 100644
index b3c21026819fcd582b3f0d14af83240bef9aa4ba..0000000000000000000000000000000000000000
--- a/conversations/conv_006905.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.006179220393577,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1226-141268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141268.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.278056845705785,
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-      "utterance_id": "7867-275218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-275218.flac |",
-      "real_speaker_id": "7867",
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-      "segment_id": "seg0002",
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-      "start_time": 13.559272796971023,
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-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.722146775902786,
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-      "duration_frames": 87159,
-      "overlap": true,
-      "utterance_id": "1226-141268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141268.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 107708
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.55726419284871,
-      "end_time": 31.006179220393577,
-      "duration": 4.448915027544866,
-      "start_frame": 424916,
-      "duration_frames": 71182,
-      "overlap": true,
-      "utterance_id": "7867-110742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110742.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
-      "duration": 0.6519047619047619,
-      "start_time": 24.019652698249498
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/laugh/0030.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7867/laugh/0068.wav",
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-      "start_time": 25.988471913028064,
-      "speaker_id": "7867"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006909.json b/conversations/conv_006909.json
deleted file mode 100644
index 2c0d3517de3a07e578a506419ce1e07b079a358d..0000000000000000000000000000000000000000
--- a/conversations/conv_006909.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.585604104496532,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6627-67844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67844.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.0693288527296465,
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-      "overlap": false,
-      "utterance_id": "163-121908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.609622870123843,
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-      "utterance_id": "8163-274549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8163-274549.flac |",
-      "real_speaker_id": "8163",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.611146848928703,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 82001
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.19623132475137,
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-      "utterance_id": "163-121908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 169416
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "6627-67850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
-      "real_speaker_id": "6627",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/163/laugh/0003.wav",
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-      "start_time": 13.09822010797409,
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-}
\ No newline at end of file
diff --git a/conversations/conv_006913.json b/conversations/conv_006913.json
deleted file mode 100644
index ff5abdc62291d6e5acc33734614299ad7ec7c065..0000000000000000000000000000000000000000
--- a/conversations/conv_006913.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration_frames": 66189,
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-      "utterance_id": "3142-160977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
-      "real_speaker_id": "3142",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "1800-142858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
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-      "position_frames": 66189
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3142/laugh/0015.wav",
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-      "start_time": 1.8620753336055094,
-      "speaker_id": "3142"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1800/laugh/0109.wav",
-      "duration": 1.1208911596936677,
-      "start_time": 20.99453297490248,
-      "speaker_id": "1800"
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-      "event_class": "cough",
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-      "start_time": 20.559960861402157,
-      "speaker_id": "3142"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006918.json b/conversations/conv_006918.json
deleted file mode 100644
index 299fc392b9ae1a4875a4ab6928a4bebdfc63b420..0000000000000000000000000000000000000000
--- a/conversations/conv_006918.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6138-93182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93182.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.771808954588996,
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-      "utterance_id": "3864-185125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185125.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.77520031162225,
-      "end_time": 22.83575522798079,
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-      "overlap": false,
-      "utterance_id": "5720-48302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5720-48302.flac |",
-      "real_speaker_id": "5720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.034067436433098,
-      "end_time": 28.768067059015763,
-      "duration": 5.733999622582665,
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-      "overlap": false,
-      "utterance_id": "3864-185125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185125.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 96161
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.851646693957957,
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-      "duration": 2.1483533060420434,
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-      "overlap": false,
-      "utterance_id": "6138-93188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6138/laugh/0131.wav",
-      "duration": 1.36,
-      "start_time": 17.87662427361398,
-      "speaker_id": "6138"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5720/laugh/0009.wav",
-      "duration": 1.08,
-      "start_time": 22.93980077891977,
-      "speaker_id": "5720"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006924.json b/conversations/conv_006924.json
deleted file mode 100644
index 2501520c48d71d0773d743cb44ea73a4dcc31d66..0000000000000000000000000000000000000000
--- a/conversations/conv_006924.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7683-103530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15304.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 63649
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.054322919741438,
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-      "duration": 6.345961916027179,
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-      "utterance_id": "4839-15304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15304.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 84894
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.58353380870316,
-      "end_time": 29.68519642875004,
-      "duration": 6.10166262004688,
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-      "overlap": false,
-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.347978373063064,
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-      "utterance_id": "7683-103530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
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-      "position_frames": 131806
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "7683"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006925.json b/conversations/conv_006925.json
deleted file mode 100644
index d9c5857c1bb4ea0229962d940ee5fdadb6753f4e..0000000000000000000000000000000000000000
--- a/conversations/conv_006925.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.493289580838592,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6686-216563.flac |",
-      "real_speaker_id": "6686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 68912
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.979879031087385,
-      "end_time": 27.874909954055703,
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-      "overlap": false,
-      "utterance_id": "6686-216563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6686-216563.flac |",
-      "real_speaker_id": "6686",
-      "position_frames": 54497
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_006929.json b/conversations/conv_006929.json
deleted file mode 100644
index 224062407bad751b83d8b00dc1650c0c17ced29c..0000000000000000000000000000000000000000
--- a/conversations/conv_006929.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4396-33397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-33397.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4396-33398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-33398.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4396-14564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-14564.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "1121",
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-14564.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_006933.json b/conversations/conv_006933.json
deleted file mode 100644
index 66dfdb96a6b93e0432233a5b3bc1d09a3c0156d0..0000000000000000000000000000000000000000
--- a/conversations/conv_006933.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3848-28169.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297942.flac |",
-      "real_speaker_id": "8753",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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\ No newline at end of file
diff --git a/conversations/conv_006944.json b/conversations/conv_006944.json
deleted file mode 100644
index 5c9ee3fc76216de594bf603d914b7dc3e56b7b8a..0000000000000000000000000000000000000000
--- a/conversations/conv_006944.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_006948.json b/conversations/conv_006948.json
deleted file mode 100644
index fdf63c7f0c5aa96e2d7ae0a289f7e183c3ba3507..0000000000000000000000000000000000000000
--- a/conversations/conv_006948.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_006952.json b/conversations/conv_006952.json
deleted file mode 100644
index 1fd4dd7425020d3b3d02b3547420d044ee632250..0000000000000000000000000000000000000000
--- a/conversations/conv_006952.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1668",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.586543293517877,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 66178
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.12318353045538,
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-      "duration": 2.8768164695446217,
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-      "utterance_id": "1668-136280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136280.flac |",
-      "real_speaker_id": "1668",
-      "position_frames": 50246
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006959.json b/conversations/conv_006959.json
deleted file mode 100644
index f57e44d2cc9321b29bfee4965a80a7a1d42c47c3..0000000000000000000000000000000000000000
--- a/conversations/conv_006959.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 5.4148891656403615,
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-      "real_speaker_id": "742",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "6614-67847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67847.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-      "speaker_id": "6614"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006963.json b/conversations/conv_006963.json
deleted file mode 100644
index b2d52230a29f61b358992de11e59d4fe14e3fad6..0000000000000000000000000000000000000000
--- a/conversations/conv_006963.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_006964.json b/conversations/conv_006964.json
deleted file mode 100644
index e9af7390b21c6add73af80770f744af3e0e5e558..0000000000000000000000000000000000000000
--- a/conversations/conv_006964.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.90949442468928,
-  "num_speakers": 2,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006968.json b/conversations/conv_006968.json
deleted file mode 100644
index 564ad71e43f77cc8b611a5750e317d33222e6ad1..0000000000000000000000000000000000000000
--- a/conversations/conv_006968.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.88399957421327,
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-      "overlap": false,
-      "utterance_id": "6670-84209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-84209.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.809612890070856,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149880.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.486166117546965,
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-      "utterance_id": "7286-92935",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7286-92935.flac |",
-      "real_speaker_id": "7286",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.297062520718868,
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-      "duration_frames": 67400,
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-      "utterance_id": "2167-149881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149881.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.445618287286674,
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-      "duration_frames": 76641,
-      "overlap": false,
-      "utterance_id": "6670-84209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-84209.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 94143
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.654284586589455,
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-      "utterance_id": "2167-149881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149881.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 67400
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.0737740139294014,
-      "start_time": 10.84971140167657,
-      "speaker_id": "2167"
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-}
\ No newline at end of file
diff --git a/conversations/conv_006972.json b/conversations/conv_006972.json
deleted file mode 100644
index ca56bfc58d9907aa2c44e65d112d316ee3d2907a..0000000000000000000000000000000000000000
--- a/conversations/conv_006972.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
-      "real_speaker_id": "1341",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "1341",
-      "position_frames": 61592
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration": 6.668644067995775,
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-      "overlap": true,
-      "utterance_id": "8443-294707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
-      "real_speaker_id": "8443",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_006973.json b/conversations/conv_006973.json
deleted file mode 100644
index 9505ef8d266469da97c6b9b51ad3685fa4ac805a..0000000000000000000000000000000000000000
--- a/conversations/conv_006973.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
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-      "real_speaker_id": "8725",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "115-121720",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_006987.json b/conversations/conv_006987.json
deleted file mode 100644
index 427178bfee07bf6a4b6e4c89916cef872c0b171d..0000000000000000000000000000000000000000
--- a/conversations/conv_006987.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1079-128632.flac |",
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-      "speaker_id": "1079"
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-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 9.54559277538202,
-      "speaker_id": "3261"
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-      "event_class": "cough",
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-      "start_time": 15.829364832433992,
-      "speaker_id": "1079"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1079/laugh/0019.wav",
-      "duration": 1.0467221947115388,
-      "start_time": 29.701082110795603,
-      "speaker_id": "1079"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1079/laugh/0085.wav",
-      "duration": 1.0092432282115764,
-      "start_time": 30.990756771788423,
-      "speaker_id": "1079"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_006991.json b/conversations/conv_006991.json
deleted file mode 100644
index 0a4c85c2aa8a6674d55a7f4fdcf00392a7d94274..0000000000000000000000000000000000000000
--- a/conversations/conv_006991.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.881579086921267,
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-      "overlap": false,
-      "utterance_id": "3664-11714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-11714.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.009707566298481,
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-      "utterance_id": "3871-692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.12902629642399,
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-      "overlap": false,
-      "utterance_id": "7437-99249",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-99249.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.54221855799799,
-      "end_time": 21.78071870315296,
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-      "duration_frames": 83816,
-      "overlap": false,
-      "utterance_id": "3871-693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-693.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.585071219576946,
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-      "utterance_id": "3664-11714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-11714.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 78105
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.380915129781418,
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-      "duration": 3.6190848702185825,
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-      "duration_frames": 57905,
-      "overlap": false,
-      "utterance_id": "3871-693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-693.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 83816
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 0.03181743759379014
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3664/laugh/0023.wav",
-      "duration": 1.16,
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-      "speaker_id": "3664"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3871/laugh/0135.wav",
-      "duration": 0.90687713817004,
-      "start_time": 5.496515538739945,
-      "speaker_id": "3871"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007007.json b/conversations/conv_007007.json
deleted file mode 100644
index bb54ee02983b86469936dbea36a2415f61f88c23..0000000000000000000000000000000000000000
--- a/conversations/conv_007007.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5952-54019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-54019.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3962-722.flac |",
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-      "speaker_id": 1,
-      "start_time": 11.794831573128702,
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-      "overlap": false,
-      "utterance_id": "2085-147970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147970.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.323495441804607,
-      "end_time": 23.227889314828303,
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-      "start_frame": 293175,
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-      "overlap": false,
-      "utterance_id": "3962-721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3962-721.flac |",
-      "real_speaker_id": "3962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.430966940821094,
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-      "overlap": false,
-      "utterance_id": "5952-8681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-8681.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.263692660352575,
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-      "utterance_id": "2085-147971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147971.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-      "speaker_id": "2085"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007011.json b/conversations/conv_007011.json
deleted file mode 100644
index 055fd1a8363f77a70b0b58feeccebccb5ca53da6..0000000000000000000000000000000000000000
--- a/conversations/conv_007011.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "731",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.753308739198832,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 94733
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 105943
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 1.767640511341142,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 185157
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_007020.json b/conversations/conv_007020.json
deleted file mode 100644
index 5eb4921cb0dfb0164cdbad121af1cd14dec9a87e..0000000000000000000000000000000000000000
--- a/conversations/conv_007020.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 30.65793824045931,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2740-162051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.613598701132121,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1547-130184.flac |",
-      "real_speaker_id": "1547",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2740-288813",
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-      "segment_id": "seg0004",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2740/laugh/0036.wav",
-      "duration": 1.28,
-      "start_time": 11.44734966607395,
-      "speaker_id": "2740"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.5246505616075897,
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-      "speaker_id": "8470"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007027.json b/conversations/conv_007027.json
deleted file mode 100644
index 7e63fb121e1c517e8d2f59bf5e75ff92a84f1f97..0000000000000000000000000000000000000000
--- a/conversations/conv_007027.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.51417408015373,
-      "duration": 3.51417408015373,
-      "start_frame": 0,
-      "duration_frames": 56226,
-      "overlap": false,
-      "utterance_id": "5671-50486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50486.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.064914282488876,
-      "end_time": 9.991329450164077,
-      "duration": 5.9264151676752,
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-      "duration_frames": 94822,
-      "overlap": false,
-      "utterance_id": "6019-3185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "5671-50453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50453.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.44344591505899,
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-      "utterance_id": "6019-3185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
-      "position_frames": 94822
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.694877699501916,
-      "end_time": 27.8028190667698,
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-      "duration_frames": 81727,
-      "overlap": true,
-      "utterance_id": "5036-18450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18450.flac |",
-      "real_speaker_id": "5036",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.96958523045376,
-      "end_time": 32.0,
-      "duration": 3.0304147695462404,
-      "start_frame": 463513,
-      "duration_frames": 48486,
-      "overlap": false,
-      "utterance_id": "5671-24628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-24628.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 10.957749931715295,
-      "start_time": 13.631872952773842
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5671/laugh/0102.wav",
-      "duration": 1.2,
-      "start_time": 9.134172927967606,
-      "speaker_id": "5671"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6019/laugh/0028.wav",
-      "duration": 1.56,
-      "start_time": 18.815249777734575,
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-    {
-      "event_class": "cough",
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-      "start_time": 19.119744539514173,
-      "speaker_id": "6019"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007031.json b/conversations/conv_007031.json
deleted file mode 100644
index 4b140a3284f1f70e928dbf4ff9b6069d82eecba5..0000000000000000000000000000000000000000
--- a/conversations/conv_007031.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.787522293992435,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
-      "end_time": 5.923211498341177,
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-      "overlap": false,
-      "utterance_id": "7402-90848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-90848.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.240662409461738,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-169293.flac |",
-      "real_speaker_id": "3340",
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-      "start_time": 11.78332046170761,
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-      "utterance_id": "3340-170982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-170982.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.43519130343799,
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-      "overlap": false,
-      "utterance_id": "7402-59171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-59171.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.171796120668155,
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-      "utterance_id": "7402-59171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-59171.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 101395
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.73404672121163,
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-      "duration": 1.0534755727808047,
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-      "duration_frames": 16855,
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-      "utterance_id": "7402-59171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-59171.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 178677
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.561551574024165,
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7402/laugh/0100.wav",
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-      "start_time": 0,
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-    {
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "3340"
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7402/laugh/0002.wav",
-      "duration": 1.12,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "7402"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007036.json b/conversations/conv_007036.json
deleted file mode 100644
index ba24b16a884898c0d8530c6d04ea7c1d41810bbd..0000000000000000000000000000000000000000
--- a/conversations/conv_007036.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8725-294554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294554.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 0
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-    {
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-      "utterance_id": "7800-283492",
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-    {
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-      "real_speaker_id": "8725",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007046.json b/conversations/conv_007046.json
deleted file mode 100644
index ed9796e8360338462873e8f2df5d9a057510d9b0..0000000000000000000000000000000000000000
--- a/conversations/conv_007046.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "4592-22179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22179.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 76212
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.94039400327857,
-      "end_time": 32.0,
-      "duration": 1.0596059967214302,
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-      "utterance_id": "3083-7944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3083-7944.flac |",
-      "real_speaker_id": "3083",
-      "position_frames": 111098
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 27.106015389639694,
-      "start_time": 2.478411335646853
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_2.wav",
-      "duration": 1.5157596371882087,
-      "start_time": 11.23964250623519
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_007050.json b/conversations/conv_007050.json
deleted file mode 100644
index 72d623e3a6e9ecf1092637f75f61b0e05870b360..0000000000000000000000000000000000000000
--- a/conversations/conv_007050.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.86219249095315,
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-      "start_frame": 0,
-      "duration_frames": 61795,
-      "overlap": false,
-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.391343941896482,
-      "end_time": 10.871070589957254,
-      "duration": 6.4797266480607725,
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-      "overlap": false,
-      "utterance_id": "1559-139353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.249699732226542,
-      "end_time": 16.23428777145274,
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-      "duration_frames": 79753,
-      "overlap": false,
-      "utterance_id": "93-126208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-126208.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.93412527806174,
-      "end_time": 23.18303213852863,
-      "duration": 6.2489068604668905,
-      "start_frame": 270946,
-      "duration_frames": 99982,
-      "overlap": false,
-      "utterance_id": "1559-139353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 103675
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.81317393914464,
-      "end_time": 29.212385197101433,
-      "duration": 5.399211257956794,
-      "start_frame": 381010,
-      "duration_frames": 86387,
-      "overlap": false,
-      "utterance_id": "93-124558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-124558.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.294603854923785,
-      "end_time": 32.0,
-      "duration": 1.7053961450762145,
-      "start_frame": 484713,
-      "duration_frames": 27286,
-      "overlap": false,
-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "cough",
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-      "start_time": 23.191826060204715,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6792/laugh/0105.wav",
-      "duration": 0.577514434766797,
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-      "start_time": 29.25769058403703,
-      "speaker_id": "6792"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007051.json b/conversations/conv_007051.json
deleted file mode 100644
index 82ce45a105c33fc8d63ca501ebcb9500234fb9ab..0000000000000000000000000000000000000000
--- a/conversations/conv_007051.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.399904149188096,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8534-216567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216567.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.536279899903487,
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-      "overlap": true,
-      "utterance_id": "3819-134146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134146.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.673647663645642,
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-      "overlap": false,
-      "utterance_id": "2104-78253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78253.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.68681189283087,
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-      "duration": 3.796143265070854,
-      "start_frame": 250988,
-      "duration_frames": 60738,
-      "overlap": false,
-      "utterance_id": "2104-75220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-75220.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.018722397986426,
-      "end_time": 25.612599027160208,
-      "duration": 5.593876629173783,
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-      "utterance_id": "3819-134145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134145.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8534-216567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216567.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 53367
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007061.json b/conversations/conv_007061.json
deleted file mode 100644
index 94affa7584730d3de57bb244cf2f030e33ed85f8..0000000000000000000000000000000000000000
--- a/conversations/conv_007061.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.269506188315752,
-      "duration": 6.269506188315752,
-      "start_frame": 0,
-      "duration_frames": 100312,
-      "overlap": false,
-      "utterance_id": "4705-94462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94462.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "7069-246892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246892.flac |",
-      "real_speaker_id": "7069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4705-94467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94467.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "7069-246893",
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-      "real_speaker_id": "7069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.366310218082564,
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-      "duration_frames": 37860,
-      "overlap": false,
-      "utterance_id": "4705-16048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-16048.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6323/laugh/0090.wav",
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-      "start_time": 17.407323637675365,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7069/laugh/0037.wav",
-      "duration": 1.44,
-      "start_time": 23.906467991357637,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4705/laugh/0126.wav",
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-      "start_time": 30.190490049765224,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007066.json b/conversations/conv_007066.json
deleted file mode 100644
index 034f64dc8d7135e70f9541cf19909bda4cf5e2eb..0000000000000000000000000000000000000000
--- a/conversations/conv_007066.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.952426296142127,
-      "duration": 5.952426296142127,
-      "start_frame": 0,
-      "duration_frames": 95238,
-      "overlap": false,
-      "utterance_id": "1696-142314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
-      "real_speaker_id": "1696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.050358882050462,
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-      "utterance_id": "14-208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-208.flac |",
-      "real_speaker_id": "14",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1696-142314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-208.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
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-      "start_time": 20.5541244576058,
-      "speaker_id": "1696"
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\ No newline at end of file
diff --git a/conversations/conv_007070.json b/conversations/conv_007070.json
deleted file mode 100644
index e8e51742d00bb662671f5bda2717a31a4765a94b..0000000000000000000000000000000000000000
--- a/conversations/conv_007070.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132718.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175932.flac |",
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-      "utterance_id": "3564-132498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3564-132498.flac |",
-      "real_speaker_id": "3564",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 18.315576509298552,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175932.flac |",
-      "real_speaker_id": "3618",
-      "position_frames": 110176
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.019601443859155,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3564-132498.flac |",
-      "real_speaker_id": "3564",
-      "position_frames": 48143
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3618-175930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175930.flac |",
-      "real_speaker_id": "3618",
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_007077.json b/conversations/conv_007077.json
deleted file mode 100644
index d6be67fcda9d0d52cb58c1f5fa77c3bee7a0eebd..0000000000000000000000000000000000000000
--- a/conversations/conv_007077.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8718",
-      "position_frames": 0
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-      "real_speaker_id": "8718",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_007085.json b/conversations/conv_007085.json
deleted file mode 100644
index b4b3d6e78cad2cfe952fe5ad6b9f548c0570ab01..0000000000000000000000000000000000000000
--- a/conversations/conv_007085.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7177-258977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258977.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13262.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6877-77361.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-    {
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-      "position_frames": 180626
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007089.json b/conversations/conv_007089.json
deleted file mode 100644
index 2d063b3606b255ed91e3ac1f96652c9428e9506e..0000000000000000000000000000000000000000
--- a/conversations/conv_007089.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.98151964348394,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.106288888057102,
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-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6807",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-10767.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-106437.flac |",
-      "real_speaker_id": "6807",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155972.flac |",
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-  "background_events": [
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-      "duration": 1.0,
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-      "speaker_id": "6807"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007093.json b/conversations/conv_007093.json
deleted file mode 100644
index a4ce7e42752a67bbad3c03ca08bec13226551558..0000000000000000000000000000000000000000
--- a/conversations/conv_007093.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.619212387748625,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "365-84333",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84333.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
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-      "speaker_id": 2,
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-      "real_speaker_id": "8887",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126320.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.287154355945729,
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-      "utterance_id": "549-126410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.79938605509888,
-      "end_time": 24.135758074772276,
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-      "duration_frames": 53381,
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-      "utterance_id": "8887-281471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8887-281471.flac |",
-      "real_speaker_id": "8887",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.74519172800074,
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-      "utterance_id": "365-84340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007098.json b/conversations/conv_007098.json
deleted file mode 100644
index f54da49e7598fa469a174f859a0d9d6a633ae582..0000000000000000000000000000000000000000
--- a/conversations/conv_007098.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.337730183216756,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-7601.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8765-295000.flac |",
-      "real_speaker_id": "8765",
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-      "segment_id": "seg0002",
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-      "start_time": 13.964613615535722,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-7601.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 102721
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-      "segment_id": "seg0003",
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-      "utterance_id": "8765-295003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8765-295003.flac |",
-      "real_speaker_id": "8765",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.30111170672912,
-      "end_time": 27.603252693473102,
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-      "overlap": false,
-      "utterance_id": "8765-295009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8765-295009.flac |",
-      "real_speaker_id": "8765",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.10774182394877,
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-      "duration_frames": 51679,
-      "overlap": false,
-      "utterance_id": "7704-106969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106969.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8765/laugh/0046.wav",
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-      "speaker_id": "8765"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007103.json b/conversations/conv_007103.json
deleted file mode 100644
index ce844279da5dbf4156a9aececa3eeec518a74788..0000000000000000000000000000000000000000
--- a/conversations/conv_007103.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "302-123523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123523.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.094924210920175,
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-      "utterance_id": "302-123504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123504.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.71722711817866,
-      "end_time": 16.65292003373567,
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-      "overlap": false,
-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.831372998102125,
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-      "duration": 3.548599276391843,
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-      "duration_frames": 56777,
-      "overlap": false,
-      "utterance_id": "3845-176676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-176676.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.980849746164928,
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-      "utterance_id": "302-123523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123523.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 103119
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.91873422334023,
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-      "utterance_id": "302-123516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123516.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.476096373694563,
-      "end_time": 32.0,
-      "duration": 1.5239036263054366,
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-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 94971
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/302/cough/0025.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "302"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/302/laugh/0089.wav",
-      "duration": 1.32,
-      "start_time": 7.85750542292029,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7484/laugh/0084.wav",
-      "duration": 1.2,
-      "start_time": 9.513246708855325,
-      "speaker_id": "7484"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/302/cough/0038.wav",
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-      "start_time": 26.69853820309706,
-      "speaker_id": "302"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7484/cough/0009.wav",
-      "duration": 0.43037588045950875,
-      "start_time": 31.569624119540492,
-      "speaker_id": "7484"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007115.json b/conversations/conv_007115.json
deleted file mode 100644
index 77080a4a06c8cf2c51a59a7949d224ab49645161..0000000000000000000000000000000000000000
--- a/conversations/conv_007115.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.01024693786172,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39615.flac |",
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-      "position_frames": 126649
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7424-98608.flac |",
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007118.json b/conversations/conv_007118.json
deleted file mode 100644
index c2994b76e23b2e3b6bb70d2b405a193b192c8af1..0000000000000000000000000000000000000000
--- a/conversations/conv_007118.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125883.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7635-105409.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 88619
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007119.json b/conversations/conv_007119.json
deleted file mode 100644
index 9b78a5d3a07f54a052037a81147da4344e41eb18..0000000000000000000000000000000000000000
--- a/conversations/conv_007119.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5883",
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 138281
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007123.json b/conversations/conv_007123.json
deleted file mode 100644
index 0fbaedb2ffdd24ee0a4f30cda2725061f22ea280..0000000000000000000000000000000000000000
--- a/conversations/conv_007123.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.228262344082996,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "7335-290365",
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-      "position_frames": 0
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_007124.json b/conversations/conv_007124.json
deleted file mode 100644
index a90c5539adfa7fb72e2b50195d40b05dd51ab813..0000000000000000000000000000000000000000
--- a/conversations/conv_007124.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.298192063496764,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26852.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.174491235119348,
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-      "utterance_id": "1373-135029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.69019086430337,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_007132.json b/conversations/conv_007132.json
deleted file mode 100644
index 82133445f3818fabeeb1d3a8b509f79e8f94e8fb..0000000000000000000000000000000000000000
--- a/conversations/conv_007132.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1046-133224.flac |",
-      "real_speaker_id": "1046",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-19585.flac |",
-      "real_speaker_id": "3816",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-19585.flac |",
-      "real_speaker_id": "3816",
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8245-274393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-274393.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.412706199198418,
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007135.json b/conversations/conv_007135.json
deleted file mode 100644
index bad115c8c0d4e11b0b0cdee7b1c9aad7dc926ec3..0000000000000000000000000000000000000000
--- a/conversations/conv_007135.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "5076-61727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-61727.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
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-      "real_speaker_id": "5076",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "5628",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5628-22450",
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-  "background_events": [
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-  "foreground_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5628/laugh/0097.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007139.json b/conversations/conv_007139.json
deleted file mode 100644
index ac27a384f82aa8fb4687878b5fb33ea7c5daf73e..0000000000000000000000000000000000000000
--- a/conversations/conv_007139.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47032.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-88076.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 50970
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-      "speaker_id": "2654"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0065141418568535,
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-      "speaker_id": "5727"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7121/laugh/0004.wav",
-      "duration": 0.64149716806263,
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-      "speaker_id": "7121"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007142.json b/conversations/conv_007142.json
deleted file mode 100644
index 1044be0e9bb0d6f1f1d3f511bb6f61be80bceca0..0000000000000000000000000000000000000000
--- a/conversations/conv_007142.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.544083759568217,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.746685355865726,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-139804.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-138246.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
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-      "start_time": 15.218391209500702,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-139804.flac |",
-      "real_speaker_id": "1263",
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-      "segment_id": "seg0004",
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-      "utterance_id": "8057-296395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-296395.flac |",
-      "real_speaker_id": "8057",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-139804.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 144600
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_007154.json b/conversations/conv_007154.json
deleted file mode 100644
index a5959b8dba8212871a8e486c6603c3fd2b2b5556..0000000000000000000000000000000000000000
--- a/conversations/conv_007154.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-902.flac |",
-      "real_speaker_id": "4594",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169011.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
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-      "real_speaker_id": "2285",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "4594",
-      "position_frames": 202021
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007158.json b/conversations/conv_007158.json
deleted file mode 100644
index 72a8f94c5426ebeea909a2b43c0482a7d5a03942..0000000000000000000000000000000000000000
--- a/conversations/conv_007158.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.722262973830617,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5983-39652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39652.flac |",
-      "real_speaker_id": "5983",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
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-      "real_speaker_id": "8413",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_007162.json b/conversations/conv_007162.json
deleted file mode 100644
index 0c7e951fcdb22b1a8113b22059efbad814e285b5..0000000000000000000000000000000000000000
--- a/conversations/conv_007162.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.763057672241841,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-9321.flac |",
-      "real_speaker_id": "3546",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168500.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 76822
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "duration": 1.3,
-      "start_time": 8.871762663084974,
-      "speaker_id": "3187"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/345/laugh/0076.wav",
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-      "start_time": 20.171936125456003,
-      "speaker_id": "345"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007165.json b/conversations/conv_007165.json
deleted file mode 100644
index f91a8afaf65f844458c69f39fadac42a12df896b..0000000000000000000000000000000000000000
--- a/conversations/conv_007165.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1992-141719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135536.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 64609
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 150825
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 240608
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 1.5833159433391941,
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-      "utterance_id": "1184-135536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135536.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 103925
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
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\ No newline at end of file
diff --git a/conversations/conv_007173.json b/conversations/conv_007173.json
deleted file mode 100644
index 7f177d6eb08870ff4d7537e6a2a997d201d3f913..0000000000000000000000000000000000000000
--- a/conversations/conv_007173.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-74040.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147610.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-58142.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "3656-168618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168618.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.652143866419912,
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-      "overlap": true,
-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.94910907899713,
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-      "duration": 3.050890921002871,
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-      "utterance_id": "6035-80463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-80463.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-      "start_time": 25.7931565451617,
-      "speaker_id": "2013"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007174.json b/conversations/conv_007174.json
deleted file mode 100644
index 242b7b68b7d6b06557166269f66c2cde7dc0adaf..0000000000000000000000000000000000000000
--- a/conversations/conv_007174.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3185-163507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163507.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.551031613574292,
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-      "utterance_id": "6284-63091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 90563,
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-      "utterance_id": "3185-163507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163507.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 87866
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.961571138105803,
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-      "duration": 4.594552143287643,
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-      "utterance_id": "6284-63091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 52280
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 125792
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3185-163507",
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-      "real_speaker_id": "3185",
-      "position_frames": 178429
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.38410773800971,
-      "end_time": 32.0,
-      "duration": 0.6158922619902896,
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-      "duration_frames": 9854,
-      "overlap": false,
-      "utterance_id": "359-133630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-133630.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-    {
-      "event_class": "Dishes",
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-      "duration": 4.1259502149199125,
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6284/laugh/0074.wav",
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-      "start_time": 19.399426420410474,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6284/laugh/0034.wav",
-      "duration": 1.12,
-      "start_time": 26.75346703844743,
-      "speaker_id": "6284"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007178.json b/conversations/conv_007178.json
deleted file mode 100644
index e3d20708afbba454007b15c5f35803e4da7b94f2..0000000000000000000000000000000000000000
--- a/conversations/conv_007178.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-}
\ No newline at end of file
diff --git a/conversations/conv_007181.json b/conversations/conv_007181.json
deleted file mode 100644
index 11de4bae15446021334239dc0c1f864e54da440c..0000000000000000000000000000000000000000
--- a/conversations/conv_007181.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163436.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
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-      "real_speaker_id": "2930",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 93877
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39671.flac |",
-      "real_speaker_id": "6333",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.112726036881412,
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-      "duration": 1.887273963118588,
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-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 150688
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_007197.json b/conversations/conv_007197.json
deleted file mode 100644
index ba4d1e65ca943c2daf9b9e3ec24e71dd45740160..0000000000000000000000000000000000000000
--- a/conversations/conv_007197.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 72726
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.845622243076704,
-      "end_time": 22.525839769155176,
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-      "overlap": false,
-      "utterance_id": "7991-102381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7991-102381.flac |",
-      "real_speaker_id": "7991",
-      "position_frames": 90383
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2136-5143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5143.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.56633659338542,
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-      "duration": 1.4336634066145812,
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-      "utterance_id": "4442-2868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 168896
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 9.440333248520234,
-      "speaker_id": "4442"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007206.json b/conversations/conv_007206.json
deleted file mode 100644
index f1c00ed95624d9e6eb700eb425e705ca85e594d1..0000000000000000000000000000000000000000
--- a/conversations/conv_007206.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 56351
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-      "segment_id": "seg0002",
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-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 139191
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 23.153245088179112,
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-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.242647805625353,
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-      "overlap": false,
-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5883/laugh/0045.wav",
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-    {
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-      "duration": 0.96,
-      "start_time": 29.0833969144922,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007210.json b/conversations/conv_007210.json
deleted file mode 100644
index 6a5bd1050753cdf675cd9e77d00513c30152fde7..0000000000000000000000000000000000000000
--- a/conversations/conv_007210.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.031777301817005,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_007221.json b/conversations/conv_007221.json
deleted file mode 100644
index d104a891ca8cd3bd2fced8859c0412f81a8a5b21..0000000000000000000000000000000000000000
--- a/conversations/conv_007221.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_007226.json b/conversations/conv_007226.json
deleted file mode 100644
index 789906a143d325ed127b126c4a373f448d00aac4..0000000000000000000000000000000000000000
--- a/conversations/conv_007226.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "num_speakers": 3,
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_007230.json b/conversations/conv_007230.json
deleted file mode 100644
index c90a72be8ed186a516e67e1e35b54bd3c444dc60..0000000000000000000000000000000000000000
--- a/conversations/conv_007230.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
-      "duration": 2.083384922509288,
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-      "start_time": 27.21393702343126
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1413/laugh/0064.wav",
-      "duration": 0.9656159787512725,
-      "start_time": 0,
-      "speaker_id": "1413"
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-    {
-      "event_class": "cough",
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-      "duration": 1.1177782541788561,
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-      "speaker_id": "7223"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7223/laugh/0052.wav",
-      "duration": 1.24,
-      "start_time": 24.466833016974576,
-      "speaker_id": "7223"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1413/laugh/0002.wav",
-      "duration": 1.1742227860635008,
-      "start_time": 30.235260326814302,
-      "speaker_id": "1413"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1413/cough/0059.wav",
-      "duration": 0.9173262702298874,
-      "start_time": 30.194734057982487,
-      "speaker_id": "1413"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007231.json b/conversations/conv_007231.json
deleted file mode 100644
index 2514d8b84a80e5af67adcc4ba477cfde2b34cd12..0000000000000000000000000000000000000000
--- a/conversations/conv_007231.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.66439573600679,
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-      "start_frame": 0,
-      "duration_frames": 90630,
-      "overlap": false,
-      "utterance_id": "6188-78885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-78885.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.21872784181464,
-      "end_time": 9.104432452384454,
-      "duration": 3.8857046105698143,
-      "start_frame": 83499,
-      "duration_frames": 62171,
-      "overlap": true,
-      "utterance_id": "3925-57460",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57460.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.153395544008884,
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-      "duration": 4.9212527868848905,
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-      "overlap": false,
-      "utterance_id": "690-134308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-134308.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.457684861567415,
-      "end_time": 19.669683049800952,
-      "duration": 4.211998188233537,
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-      "duration_frames": 67391,
-      "overlap": false,
-      "utterance_id": "3925-57460",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57460.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 62171
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.28513115600593,
-      "end_time": 25.53565467802959,
-      "duration": 5.250523522023658,
-      "start_frame": 324562,
-      "duration_frames": 84008,
-      "overlap": false,
-      "utterance_id": "6188-73024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-73024.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.978673632085773,
-      "end_time": 29.213193478943403,
-      "duration": 3.234519846857628,
-      "start_frame": 415658,
-      "duration_frames": 51752,
-      "overlap": true,
-      "utterance_id": "690-133452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-133452.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.261116880573248,
-      "end_time": 32.0,
-      "duration": 1.7388831194267524,
-      "start_frame": 484177,
-      "duration_frames": 27822,
-      "overlap": false,
-      "utterance_id": "6188-78885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-78885.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 90630
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
-      "duration": 0.5431292517006803,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6188/laugh/0003.wav",
-      "duration": 0.96,
-      "start_time": 0,
-      "speaker_id": "6188"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3925/laugh/0009.wav",
-      "duration": 1.22715144161079,
-      "start_time": 3.9233802605695756,
-      "speaker_id": "3925"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/690/laugh/0014.wav",
-      "duration": 0.715429063518257,
-      "start_time": 27.9242884535262,
-      "speaker_id": "690"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6188/laugh/0078.wav",
-      "duration": 1.2436015962610985,
-      "start_time": 30.551477394560226,
-      "speaker_id": "6188"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007247.json b/conversations/conv_007247.json
deleted file mode 100644
index 64d9cf3b6167207e29968b33f879e876cf72f721..0000000000000000000000000000000000000000
--- a/conversations/conv_007247.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.046673562339642,
-      "duration": 6.046673562339642,
-      "start_frame": 0,
-      "duration_frames": 96746,
-      "overlap": false,
-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.043948797859662,
-      "end_time": 12.049825700317891,
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-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.870847126439166,
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-      "overlap": false,
-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 96746
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.77856287753478,
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-      "duration": 5.161493911040059,
-      "start_frame": 284457,
-      "duration_frames": 82583,
-      "overlap": false,
-      "utterance_id": "7495-252342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-252342.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.72256744611802,
-      "end_time": 28.64597127914587,
-      "duration": 4.92340383302785,
-      "start_frame": 379561,
-      "duration_frames": 78774,
-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 80094
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.92353433699071,
-      "end_time": 32.0,
-      "duration": 3.076465663009291,
-      "start_frame": 462776,
-      "duration_frames": 49223,
-      "overlap": false,
-      "utterance_id": "7495-252341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-252341.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1885/cough/0053.wav",
-      "duration": 1.1120057198213331,
-      "start_time": 0,
-      "speaker_id": "1885"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1885/laugh/0077.wav",
-      "duration": 1.0786937379701231,
-      "start_time": 15.28679688340532,
-      "speaker_id": "1885"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8632/laugh/0091.wav",
-      "duration": 1.439455377785748,
-      "start_time": 22.12879915319324,
-      "speaker_id": "8632"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7495/cough/0082.wav",
-      "duration": 1.06,
-      "start_time": 30.94,
-      "speaker_id": "7495"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007251.json b/conversations/conv_007251.json
deleted file mode 100644
index cef7a53315a5712d49e3403224e5730d530b4dde..0000000000000000000000000000000000000000
--- a/conversations/conv_007251.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.436782842252047,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 58015,
-      "overlap": false,
-      "utterance_id": "2299-6525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.49081227741028,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 58015
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "226-122538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/226-122538.flac |",
-      "real_speaker_id": "226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.148463176909232,
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-      "utterance_id": "226-131532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/226-131532.flac |",
-      "real_speaker_id": "226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.19961825581831,
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-      "overlap": true,
-      "utterance_id": "2299-6525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 130451
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.15355663961298,
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-      "duration_frames": 68531,
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-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/226/cough/0028.wav",
-      "duration": 1.0,
-      "start_time": 14.129011440789041,
-      "speaker_id": "226"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2299/laugh/0022.wav",
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-      "start_time": 26.53456653099911,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8476/laugh/0067.wav",
-      "duration": 0.7397238944001984,
-      "start_time": 31.2602761055998,
-      "speaker_id": "8476"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007267.json b/conversations/conv_007267.json
deleted file mode 100644
index 9868f28b3e6eeb497e7fc0c25eec4fb57a5a9583..0000000000000000000000000000000000000000
--- a/conversations/conv_007267.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "968-122544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 6.165579320214174,
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-      "utterance_id": "7640-111784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-111784.flac |",
-      "real_speaker_id": "7640",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-102465.flac |",
-      "real_speaker_id": "7640",
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-      "segment_id": "seg0005",
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-      "speaker_id": "968"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007271.json b/conversations/conv_007271.json
deleted file mode 100644
index 02e4b0dad20e3db89592ceeaf1b12b7a50a9cae4..0000000000000000000000000000000000000000
--- a/conversations/conv_007271.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.599779816176973,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4800-38660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-38660.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.728050474071468,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-891.flac |",
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-      "utterance_id": "4800-73728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73728.flac |",
-      "real_speaker_id": "4800",
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-      "overlap": false,
-      "utterance_id": "6139-58868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58868.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.96811679415678,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-174988.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4800-38660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-38660.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 82626
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.21310452752031,
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-      "duration": 1.3866752886566616,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-891.flac |",
-      "real_speaker_id": "3926",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "cough",
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-      "speaker_id": "4800"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007284.json b/conversations/conv_007284.json
deleted file mode 100644
index 2c96d57ad8267b0dd7c0b8180f6b11bc1ee68406..0000000000000000000000000000000000000000
--- a/conversations/conv_007284.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.80620863743382,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
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-      "utterance_id": "1944-159227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1944-159227.flac |",
-      "real_speaker_id": "1944",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122647.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 80181
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.65486794189183,
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-      "utterance_id": "1460-138290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 89945
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1944-159228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1944-159228.flac |",
-      "real_speaker_id": "1944",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-      "event_class": "Frying",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1944/laugh/0103.wav",
-      "duration": 0.6497791907706039,
-      "start_time": 31.350220809229395,
-      "speaker_id": "1944"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007288.json b/conversations/conv_007288.json
deleted file mode 100644
index 07b7fedf3142e0a5292997c23ce8eb982ff561e9..0000000000000000000000000000000000000000
--- a/conversations/conv_007288.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8245-283126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-283126.flac |",
-      "real_speaker_id": "8245",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.01447831516116,
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-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 88654
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.38069717592341,
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-      "utterance_id": "8245-283126",
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-      "real_speaker_id": "8245",
-      "position_frames": 65789
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.747920760570167,
-      "end_time": 32.0,
-      "duration": 2.2520792394298326,
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-      "duration_frames": 36033,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 192237
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8245/cough/0043.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1828/laugh/0006.wav",
-      "duration": 1.16,
-      "start_time": 28.443898854104294,
-      "speaker_id": "1828"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007292.json b/conversations/conv_007292.json
deleted file mode 100644
index b9a603d7ea4dd199e6d521d6d641d25a80126fa4..0000000000000000000000000000000000000000
--- a/conversations/conv_007292.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_time": 22.58526835681802,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70128.flac |",
-      "real_speaker_id": "6459",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.835324921557113,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58196.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "6106"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007302.json b/conversations/conv_007302.json
deleted file mode 100644
index 8d22170668c59985f29187e9c9d2ae1f771987ef..0000000000000000000000000000000000000000
--- a/conversations/conv_007302.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.620899074711405,
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-      "utterance_id": "7933-113272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-113272.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 4.149121142658942,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-79958.flac |",
-      "real_speaker_id": "6741",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132847.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.083970035232458,
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-      "utterance_id": "6741-253270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253270.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007309.json b/conversations/conv_007309.json
deleted file mode 100644
index b5696ca73d6962a14cb4ad154e7182ebd83e2ef9..0000000000000000000000000000000000000000
--- a/conversations/conv_007309.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "4791-25377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25377.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153215.flac |",
-      "real_speaker_id": "789",
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-      "utterance_id": "789-153211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153211.flac |",
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-    {
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-      "real_speaker_id": "789",
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-      "utterance_id": "1456-139733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-139733.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "laugh",
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-      "start_time": 6.005720602743876,
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007314.json b/conversations/conv_007314.json
deleted file mode 100644
index 7d7ee4b10773e751b5016811bbcf3d13833cea83..0000000000000000000000000000000000000000
--- a/conversations/conv_007314.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.720152623864845,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 0
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-      "utterance_id": "1547-130184",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1547-130184.flac |",
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-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/517/cough/0094.wav",
-      "duration": 1.2,
-      "start_time": 10.772986574929721,
-      "speaker_id": "517"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1547/laugh/0029.wav",
-      "duration": 1.4115441214081876,
-      "start_time": 30.13837150483588,
-      "speaker_id": "1547"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1547/cough/0062.wav",
-      "duration": 0.7342015535963458,
-      "start_time": 29.202511030884683,
-      "speaker_id": "1547"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007318.json b/conversations/conv_007318.json
deleted file mode 100644
index 0335fb072b6b4ce8bd93d1d9b8b077c7858669c7..0000000000000000000000000000000000000000
--- a/conversations/conv_007318.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.774070345483178,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.160202081505845,
-      "duration": 5.160202081505845,
-      "start_frame": 0,
-      "duration_frames": 82563,
-      "overlap": false,
-      "utterance_id": "6339-65554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.188310975414418,
-      "end_time": 11.605065428435763,
-      "duration": 5.416754453021345,
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-      "utterance_id": "4799-25949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.118283711665919,
-      "end_time": 17.147532266028584,
-      "duration": 5.029248554362663,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.772557234746934,
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-      "duration": 4.520827934805531,
-      "start_frame": 284360,
-      "duration_frames": 72333,
-      "overlap": false,
-      "utterance_id": "4799-25949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 86668
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.353575259972118,
-      "end_time": 26.809572412493605,
-      "duration": 3.4559971525214856,
-      "start_frame": 373657,
-      "duration_frames": 55295,
-      "overlap": false,
-      "utterance_id": "6339-65534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 80467
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.015708349098468,
-      "end_time": 31.774070345483178,
-      "duration": 4.758361996384711,
-      "start_frame": 432251,
-      "duration_frames": 76133,
-      "overlap": false,
-      "utterance_id": "4799-25950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25950.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.8213425170087203,
-      "start_time": 26.408742025495386
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6339/laugh/0015.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.1092759885217407,
-      "start_time": 10.81748468288363,
-      "speaker_id": "6339"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4799/laugh/0053.wav",
-      "duration": 1.6,
-      "start_time": 18.224493768663592,
-      "speaker_id": "4799"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4799/laugh/0091.wav",
-      "duration": 1.1949899930107635,
-      "start_time": 30.805010006989235,
-      "speaker_id": "4799"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007322.json b/conversations/conv_007322.json
deleted file mode 100644
index c1ef4a72b35094bd791e1164f37debfef1ba88e6..0000000000000000000000000000000000000000
--- a/conversations/conv_007322.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.994191946782193,
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-      "utterance_id": "1636-130501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 12.648940698989225,
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-      "duration": 6.266447865457634,
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-      "overlap": false,
-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 80469
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.520150379556465,
-      "end_time": 23.631296257788954,
-      "duration": 4.111145878232488,
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-      "duration_frames": 65778,
-      "overlap": true,
-      "utterance_id": "1636-141789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-141789.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.010067925593138,
-      "end_time": 29.91859490016629,
-      "duration": 4.908526974573152,
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-      "duration_frames": 78536,
-      "overlap": false,
-      "utterance_id": "1636-130501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 99520
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.611378976279454,
-      "end_time": 32.0,
-      "duration": 1.388621023720546,
-      "start_frame": 489782,
-      "duration_frames": 22217,
-      "overlap": false,
-      "utterance_id": "2195-150901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150901.flac |",
-      "real_speaker_id": "2195",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.4051548878652556,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2195/laugh/0063.wav",
-      "duration": 1.0485378223626283,
-      "start_time": 30.95146217763737,
-      "speaker_id": "2195"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007334.json b/conversations/conv_007334.json
deleted file mode 100644
index 827368fcbb9440b2be8c5b964fe18d18cdc30dac..0000000000000000000000000000000000000000
--- a/conversations/conv_007334.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.835233111266387,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3866-9919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9919.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.632062607306598,
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-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.466912118641156,
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-      "overlap": false,
-      "utterance_id": "3866-173230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-173230.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.180247142798606,
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-      "utterance_id": "7357-94126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.119257687604364,
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-      "duration_frames": 67742,
-      "overlap": false,
-      "utterance_id": "3866-9920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9920.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.582576210556244,
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-      "start_frame": 409321,
-      "duration_frames": 100042,
-      "overlap": false,
-      "utterance_id": "7357-94126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 68323
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7357/cough/0031.wav",
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-    {
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-      "start_time": 9.299543246203227,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7357/laugh/0002.wav",
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-      "event_class": "cough",
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-      "speaker_id": "7357"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007338.json b/conversations/conv_007338.json
deleted file mode 100644
index 7b0febaf7279dea23a9db88ca7ab6927100caae3..0000000000000000000000000000000000000000
--- a/conversations/conv_007338.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.65619146622216,
-      "duration": 3.65619146622216,
-      "start_frame": 0,
-      "duration_frames": 58499,
-      "overlap": false,
-      "utterance_id": "58-121075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5808-54425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-54425.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "205-157088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-157088.flac |",
-      "real_speaker_id": "205",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "58",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/205/cough/0052.wav",
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\ No newline at end of file
diff --git a/conversations/conv_007343.json b/conversations/conv_007343.json
deleted file mode 100644
index 0c471b9f85c124c9576860fceeceef0283dab38b..0000000000000000000000000000000000000000
--- a/conversations/conv_007343.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134816.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.487768392091999,
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-      "utterance_id": "2113-132484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132484.flac |",
-      "real_speaker_id": "2113",
-      "position_frames": 0
-    },
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-      "overlap": false,
-      "utterance_id": "2498-134786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134786.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 22.833637174406952,
-      "end_time": 27.43872250171023,
-      "duration": 4.605085327303279,
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-      "duration_frames": 73681,
-      "overlap": false,
-      "utterance_id": "1968-145732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 28.158655288373645,
-      "end_time": 32.0,
-      "duration": 3.8413447116263555,
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-      "utterance_id": "2113-132485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132485.flac |",
-      "real_speaker_id": "2113",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-      "event_class": "Frying",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1968/laugh/0070.wav",
-      "duration": 1.28,
-      "start_time": 24.214501759057878,
-      "speaker_id": "1968"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007348.json b/conversations/conv_007348.json
deleted file mode 100644
index 7723eedcd42a999a3d84e87e6324a683401aed2d..0000000000000000000000000000000000000000
--- a/conversations/conv_007348.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167607.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 0
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-      "utterance_id": "6538-81843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81843.flac |",
-      "real_speaker_id": "6538",
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-      "utterance_id": "3214-167606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167606.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 73733
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167607.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 101181
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007355.json b/conversations/conv_007355.json
deleted file mode 100644
index faf32443fd206511d290e8f780dc15022f4fa04b..0000000000000000000000000000000000000000
--- a/conversations/conv_007355.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-  "segments": [
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-      "utterance_id": "2067-143536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5519-39478.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
-      "real_speaker_id": "1696",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1696",
-      "position_frames": 66520
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 100444
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-}
\ No newline at end of file
diff --git a/conversations/conv_007359.json b/conversations/conv_007359.json
deleted file mode 100644
index fb806e9e63a28788c2ab865510813777a3fc67ac..0000000000000000000000000000000000000000
--- a/conversations/conv_007359.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1482-140072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140072.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141235.flac |",
-      "real_speaker_id": "2194",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "speaker_id": "2194"
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\ No newline at end of file
diff --git a/conversations/conv_007363.json b/conversations/conv_007363.json
deleted file mode 100644
index 6d03e2f99934fb84284be82f85901948e10dff7d..0000000000000000000000000000000000000000
--- a/conversations/conv_007363.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86732.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "utterance_id": "7117-86732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86732.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 74013
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 103278
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.386108061534642,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-124400.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.78435245164932,
-      "end_time": 32.0,
-      "duration": 1.215647548350681,
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-      "utterance_id": "6281-65531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 207406
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-      "duration": 1.2,
-      "start_time": 0,
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_007364.json b/conversations/conv_007364.json
deleted file mode 100644
index bc9a07f890fa49a35d340479c14524b29ff049c1..0000000000000000000000000000000000000000
--- a/conversations/conv_007364.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.82430967054963,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5979-42001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42001.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
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-      "utterance_id": "1636-130535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130535.flac |",
-      "real_speaker_id": "1636",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42001.flac |",
-      "real_speaker_id": "5979",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2185-150124",
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-      "real_speaker_id": "2185",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.804397141763623,
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-      "utterance_id": "1636-130535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130535.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 71362
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-  "foreground_events": [
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-      "speaker_id": "1636"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007374.json b/conversations/conv_007374.json
deleted file mode 100644
index 733def66921b92a1b530777946c6872d4ce90745..0000000000000000000000000000000000000000
--- a/conversations/conv_007374.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "201-122255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-122255.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "real_speaker_id": "201",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_007375.json b/conversations/conv_007375.json
deleted file mode 100644
index 4e2cb17008f470bd8f4122e6ad902f561fd793e7..0000000000000000000000000000000000000000
--- a/conversations/conv_007375.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "2312",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 99938
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.258330482372497,
-      "end_time": 25.917190936471147,
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-      "duration_frames": 74541,
-      "overlap": false,
-      "utterance_id": "2312-161206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2312-161206.flac |",
-      "real_speaker_id": "2312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.32841046732743,
-      "end_time": 32.0,
-      "duration": 5.67158953267257,
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-      "overlap": false,
-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 207954
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.1045867578344275,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7313/laugh/0020.wav",
-      "duration": 0.9171493892792499,
-      "start_time": 4.999311446195561,
-      "speaker_id": "7313"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2312/laugh/0053.wav",
-      "duration": 0.8,
-      "start_time": 6.07761626430585,
-      "speaker_id": "2312"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7313/laugh/0054.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "7313"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007379.json b/conversations/conv_007379.json
deleted file mode 100644
index 6efd221d338975212e3c4be4e522ebef337a32ed..0000000000000000000000000000000000000000
--- a/conversations/conv_007379.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.739527886775635,
-      "duration": 3.739527886775635,
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-      "overlap": false,
-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.283691312428463,
-      "end_time": 9.724409482627065,
-      "duration": 5.440718170198602,
-      "start_frame": 68539,
-      "duration_frames": 87051,
-      "overlap": false,
-      "utterance_id": "7603-274560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.42023261415202,
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-      "overlap": true,
-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.53754247351699,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 87051
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.890895713385554,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 74076
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-      "segment_id": "seg0005",
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-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
-      "position_frames": 59832
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.896215756049838,
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-      "duration": 1.1037842439501624,
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-      "utterance_id": "7603-274560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 149102
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7525/laugh/0056.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7525/laugh/0104.wav",
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-    {
-      "event_class": "cough",
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-    {
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-      "duration": 1.68,
-      "start_time": 30.32,
-      "speaker_id": "8531"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007380.json b/conversations/conv_007380.json
deleted file mode 100644
index 501794ad1e1589b2b1bca146c3a7c18ba5856490..0000000000000000000000000000000000000000
--- a/conversations/conv_007380.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3409-167623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3409-167623.flac |",
-      "real_speaker_id": "3409",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-48224.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
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-      "utterance_id": "2481-163597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-163597.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.405713453266252,
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-      "overlap": false,
-      "utterance_id": "6583-66269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66269.flac |",
-      "real_speaker_id": "6583",
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-    {
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-      "real_speaker_id": "3409",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 84571,
-      "overlap": false,
-      "utterance_id": "6583-66463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66463.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.288017299999773,
-      "end_time": 32.0,
-      "duration": 2.7119827000002275,
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-      "utterance_id": "2481-156738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-156738.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007396.json b/conversations/conv_007396.json
deleted file mode 100644
index 7dc476dd3d6bd55b09e534b2952cdb3d35ad3269..0000000000000000000000000000000000000000
--- a/conversations/conv_007396.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7241-90850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90850.flac |",
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-    {
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-      "utterance_id": "3357-28375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3357-28375.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 93260
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/421/laugh/0080.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3357/cough/0024.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7241/cough/0043.wav",
-      "duration": 0.4700882521529739,
-      "start_time": 29.014008734072522,
-      "speaker_id": "7241"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007400.json b/conversations/conv_007400.json
deleted file mode 100644
index 4cfdb0f25d5f6ac8e16f7b3c2485871535cb8116..0000000000000000000000000000000000000000
--- a/conversations/conv_007400.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.1804574527921,
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-      "start_frame": 0,
-      "duration_frames": 82887,
-      "overlap": false,
-      "utterance_id": "8006-112592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.781227384410322,
-      "end_time": 8.871804409520013,
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-      "duration_frames": 49449,
-      "overlap": false,
-      "utterance_id": "3686-171134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171134.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.503627262494854,
-      "end_time": 14.26970871990351,
-      "duration": 4.7660814574086565,
-      "start_frame": 152058,
-      "duration_frames": 76257,
-      "overlap": false,
-      "utterance_id": "8006-112592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 82887
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.704679578795474,
-      "end_time": 20.136828582952653,
-      "duration": 4.4321490041571785,
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-      "overlap": false,
-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.642514224100868,
-      "end_time": 25.189011042783118,
-      "duration": 4.546496818682249,
-      "start_frame": 330280,
-      "duration_frames": 72743,
-      "overlap": false,
-      "utterance_id": "8006-112593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112593.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.29487106528661,
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-      "start_frame": 404717,
-      "duration_frames": 92282,
-      "overlap": false,
-      "utterance_id": "3686-171134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171134.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 49449
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.355090655950917,
-      "end_time": 32.0,
-      "duration": 0.6449093440490827,
-      "start_frame": 501681,
-      "duration_frames": 10318,
-      "overlap": false,
-      "utterance_id": "6346-60784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6346-60784.flac |",
-      "real_speaker_id": "6346",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
-      "start_time": 10.975195281092759
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
-      "duration": 4.70688681986031,
-      "start_time": 20.62727074092722
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8006/laugh/0072.wav",
-      "duration": 1.36,
-      "start_time": 5.385794051112769,
-      "speaker_id": "8006"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3686/laugh/0038.wav",
-      "duration": 1.14,
-      "start_time": 5.823487426714248,
-      "speaker_id": "3686"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8006/laugh/0004.wav",
-      "duration": 1.36,
-      "start_time": 11.727433122837889,
-      "speaker_id": "8006"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3686/cough/0126.wav",
-      "duration": 1.0,
-      "start_time": 20.200448279379547,
-      "speaker_id": "3686"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3686/laugh/0104.wav",
-      "duration": 1.4,
-      "start_time": 26.50353627855647,
-      "speaker_id": "3686"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6346/cough/0073.wav",
-      "duration": 1.495889089906853,
-      "start_time": 30.504110910093146,
-      "speaker_id": "6346"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007401.json b/conversations/conv_007401.json
deleted file mode 100644
index 7419e35edaf265fd424866a01264015759643553..0000000000000000000000000000000000000000
--- a/conversations/conv_007401.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.688930837874133,
-      "end_time": 9.767033572016594,
-      "duration": 4.078102734142462,
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-      "utterance_id": "4098-11546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11546.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.303498761371586,
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-      "duration": 4.073234328465763,
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-      "overlap": false,
-      "utterance_id": "2834-132497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2834-132497.flac |",
-      "real_speaker_id": "2834",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.000938600974756,
-      "end_time": 18.179919379276317,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11547.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.283680752811087,
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-      "duration": 3.883117360863377,
-      "start_frame": 292538,
-      "duration_frames": 62129,
-      "overlap": false,
-      "utterance_id": "711-187466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187466.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 22.487368663468175,
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-      "duration": 4.266355912501085,
-      "start_frame": 359797,
-      "duration_frames": 68261,
-      "overlap": false,
-      "utterance_id": "4098-11547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11547.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 50863
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 26.961523361881543,
-      "end_time": 30.48586286741741,
-      "duration": 3.5243395055358655,
-      "start_frame": 431384,
-      "duration_frames": 56389,
-      "overlap": false,
-      "utterance_id": "711-187466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187466.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 62129
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 0,
-      "start_time": 30.739719007127004,
-      "end_time": 32.0,
-      "duration": 1.260280992872996,
-      "start_frame": 491835,
-      "duration_frames": 20164,
-      "overlap": false,
-      "utterance_id": "2834-132497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2834-132497.flac |",
-      "real_speaker_id": "2834",
-      "position_frames": 65171
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4098/laugh/0006.wav",
-      "duration": 0.570991001123774,
-      "start_time": 18.414496137202708,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4098/laugh/0110.wav",
-      "duration": 0.778821028141916,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4098/cough/0014.wav",
-      "duration": 1.08,
-      "start_time": 26.76528475949035,
-      "speaker_id": "4098"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007416.json b/conversations/conv_007416.json
deleted file mode 100644
index c30e8751bb5dd41680ebe7ef0742ceead8ba5605..0000000000000000000000000000000000000000
--- a/conversations/conv_007416.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.703362910033508,
-      "duration": 6.703362910033508,
-      "start_frame": 0,
-      "duration_frames": 107253,
-      "overlap": false,
-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.166558608728804,
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-      "duration_frames": 71148,
-      "overlap": false,
-      "utterance_id": "1553-140048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140048.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.02458608714706,
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-      "overlap": false,
-      "utterance_id": "3947-13260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13260.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.352136701721395,
-      "end_time": 23.729007231485944,
-      "duration": 4.376870529764548,
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-      "utterance_id": "1553-140048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140048.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 71148
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.551525850461672,
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-      "utterance_id": "5514-19192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19192.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.03558035549948,
-      "end_time": 32.0,
-      "duration": 1.96441964450052,
-      "start_frame": 480569,
-      "duration_frames": 31430,
-      "overlap": false,
-      "utterance_id": "3947-13260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13260.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 107555
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_1.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3947/laugh/0043.wav",
-      "duration": 1.0,
-      "start_time": 10.919681149216162,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5514/cough/0050.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "3947"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007420.json b/conversations/conv_007420.json
deleted file mode 100644
index 2f99cebb89e472305c2093dd0cf8aa53c95d2dc1..0000000000000000000000000000000000000000
--- a/conversations/conv_007420.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.13220880915475,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3825-134160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2204",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.055687484360828,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "real_speaker_id": "8291",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_007427.json b/conversations/conv_007427.json
deleted file mode 100644
index 4088d62da8b29d16724542aa8abe4e33868a4345..0000000000000000000000000000000000000000
--- a/conversations/conv_007427.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8194-89388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.065834418849225,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133212.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133212.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 57517
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 103883
-    },
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-      "segment_id": "seg0005",
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-      "utterance_id": "8194-89388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 77691
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_007431.json b/conversations/conv_007431.json
deleted file mode 100644
index cb554415359d39f7f9e79568cd4fa14a5f4ae3ac..0000000000000000000000000000000000000000
--- a/conversations/conv_007431.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.320523227897667,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3647-134419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-134419.flac |",
-      "real_speaker_id": "3647",
-      "position_frames": 0
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-      "real_speaker_id": "3647",
-      "position_frames": 70779
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007436.json b/conversations/conv_007436.json
deleted file mode 100644
index 1f072ead6d25fceb37fc766c2033b4b39ee49999..0000000000000000000000000000000000000000
--- a/conversations/conv_007436.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4800-73728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73728.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007441.json b/conversations/conv_007441.json
deleted file mode 100644
index 7d1e8f299956209cc5fbfc125b15317c323d7ae2..0000000000000000000000000000000000000000
--- a/conversations/conv_007441.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.980522748176049,
-      "duration": 4.980522748176049,
-      "start_frame": 0,
-      "duration_frames": 79688,
-      "overlap": false,
-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.80388815328164,
-      "end_time": 9.321997733865283,
-      "duration": 4.518109580583642,
-      "start_frame": 76862,
-      "duration_frames": 72289,
-      "overlap": true,
-      "utterance_id": "3630-24758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-24758.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.253634232579676,
-      "end_time": 16.168089278443134,
-      "duration": 5.914455045863457,
-      "start_frame": 164058,
-      "duration_frames": 94631,
-      "overlap": false,
-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 79688
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.564733672640763,
-      "end_time": 21.201893771673003,
-      "duration": 4.63716009903224,
-      "start_frame": 265035,
-      "duration_frames": 74194,
-      "overlap": false,
-      "utterance_id": "1874-89898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-89898.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.61734326215784,
-      "end_time": 27.113331528276778,
-      "duration": 5.49598826611894,
-      "start_frame": 345877,
-      "duration_frames": 87935,
-      "overlap": false,
-      "utterance_id": "3630-11612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-11612.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.33959176396393,
-      "end_time": 32.0,
-      "duration": 4.660408236036069,
-      "start_frame": 437433,
-      "duration_frames": 74566,
-      "overlap": false,
-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 174319
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
-      "duration": 0.35356009070294786,
-      "start_time": 23.972747940536497
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1874/cough/0096.wav",
-      "duration": 1.068740647735381,
-      "start_time": 21.24329109178163,
-      "speaker_id": "1874"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3630/laugh/0049.wav",
-      "duration": 1.04,
-      "start_time": 20.57585352541521,
-      "speaker_id": "3630"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3230/laugh/0014.wav",
-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "3230"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007457.json b/conversations/conv_007457.json
deleted file mode 100644
index cfb26b0599f87a710c6ba2bbafb6564c3a3a2563..0000000000000000000000000000000000000000
--- a/conversations/conv_007457.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.9350915353975213,
-      "duration": 3.9350915353975213,
-      "start_frame": 0,
-      "duration_frames": 62961,
-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.071271425853153,
-      "end_time": 7.452776405866768,
-      "duration": 3.3815049800136143,
-      "start_frame": 65140,
-      "duration_frames": 54104,
-      "overlap": false,
-      "utterance_id": "6367-65536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.847490082917356,
-      "end_time": 14.230892328917232,
-      "duration": 6.383402245999876,
-      "start_frame": 125559,
-      "duration_frames": 102134,
-      "overlap": false,
-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.487212535913436,
-      "end_time": 17.759107139606428,
-      "duration": 3.2718946036929935,
-      "start_frame": 231795,
-      "duration_frames": 52350,
-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 62961
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.518882734823514,
-      "end_time": 25.14269058828475,
-      "duration": 6.623807853461235,
-      "start_frame": 296302,
-      "duration_frames": 105980,
-      "overlap": false,
-      "utterance_id": "6367-65536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 54104
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.45495605086205,
-      "end_time": 29.761596056562432,
-      "duration": 4.3066400057003795,
-      "start_frame": 407279,
-      "duration_frames": 68906,
-      "overlap": false,
-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 102134
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.03503782884433,
-      "end_time": 32.0,
-      "duration": 1.964962171155669,
-      "start_frame": 480560,
-      "duration_frames": 31439,
-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 115311
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
-      "duration": 2.848694419658183,
-      "start_time": 25.870218426365888
-    },
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
-      "duration": 0.9175736961451247,
-      "start_time": 22.416393974039426
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1733/cough/0056.wav",
-      "duration": 1.0503020418569156,
-      "start_time": 3.9943717501792593,
-      "speaker_id": "1733"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6367/laugh/0010.wav",
-      "duration": 1.16,
-      "start_time": 5.610482842818776,
-      "speaker_id": "6367"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1733/laugh/0049.wav",
-      "duration": 1.2,
-      "start_time": 13.144437592452418,
-      "speaker_id": "1733"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1733/cough/0047.wav",
-      "duration": 1.116688541426688,
-      "start_time": 13.235822179529816,
-      "speaker_id": "1733"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6367/laugh/0027.wav",
-      "duration": 1.4214851442494543,
-      "start_time": 16.83506259018943,
-      "speaker_id": "6367"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/107/laugh/0035.wav",
-      "duration": 1.1550907517984386,
-      "start_time": 29.809440626065598,
-      "speaker_id": "107"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007461.json b/conversations/conv_007461.json
deleted file mode 100644
index fb98bb0f5152b161f0440ee834a1625c9c842c4e..0000000000000000000000000000000000000000
--- a/conversations/conv_007461.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.78211654628078,
-      "duration": 5.78211654628078,
-      "start_frame": 0,
-      "duration_frames": 92513,
-      "overlap": false,
-      "utterance_id": "7737-112595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-112595.flac |",
-      "real_speaker_id": "7737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.082251458213863,
-      "end_time": 12.941053685895415,
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-      "duration_frames": 109740,
-      "overlap": false,
-      "utterance_id": "1343-158796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158796.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.836899938376813,
-      "end_time": 17.415596256192988,
-      "duration": 3.578696317816175,
-      "start_frame": 221390,
-      "duration_frames": 57259,
-      "overlap": false,
-      "utterance_id": "7737-112595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-112595.flac |",
-      "real_speaker_id": "7737",
-      "position_frames": 92513
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.761360927785724,
-      "end_time": 23.2534437708327,
-      "duration": 5.492082843046977,
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-      "duration_frames": 87873,
-      "overlap": false,
-      "utterance_id": "5230-4863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4863.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.539770417602355,
-      "end_time": 30.95508850368558,
-      "duration": 6.415318086083223,
-      "start_frame": 392636,
-      "duration_frames": 102645,
-      "overlap": false,
-      "utterance_id": "5230-4844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4844.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.197679226461933,
-      "end_time": 32.0,
-      "duration": 0.8023207735380673,
-      "start_frame": 499162,
-      "duration_frames": 12837,
-      "overlap": false,
-      "utterance_id": "1343-158796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158796.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 109740
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 15.670728497085353,
-      "start_time": 13.523114403555118
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
-      "duration": 1.5150686618152114,
-      "start_time": 22.96176548165717
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5230/cough/0065.wav",
-      "duration": 0.88,
-      "start_time": 30.987269924242405,
-      "speaker_id": "5230"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1343/laugh/0038.wav",
-      "duration": 0.6128233813251653,
-      "start_time": 31.387176618674836,
-      "speaker_id": "1343"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1343/cough/0010.wav",
-      "duration": 0.5481332120846345,
-      "start_time": 31.451866787915364,
-      "speaker_id": "1343"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007466.json b/conversations/conv_007466.json
deleted file mode 100644
index 0ff0fc75dde4475f7217795659682e6d4919d105..0000000000000000000000000000000000000000
--- a/conversations/conv_007466.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.68084735350888,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.0884330599790335,
-      "duration": 5.0884330599790335,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6177-57662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6177-57662.flac |",
-      "real_speaker_id": "6177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.2161010034268145,
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-      "duration": 5.538363634332552,
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-      "duration_frames": 88613,
-      "overlap": false,
-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.98376731908451,
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-      "duration": 4.058089297972966,
-      "start_frame": 191740,
-      "duration_frames": 64929,
-      "overlap": false,
-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.74763909539103,
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-      "utterance_id": "6177-57662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6177-57662.flac |",
-      "real_speaker_id": "6177",
-      "position_frames": 81414
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 64929
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 147965
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6177/laugh/0095.wav",
-      "duration": 0.98,
-      "start_time": 5.2769116329158585,
-      "speaker_id": "6177"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6177/laugh/0041.wav",
-      "duration": 1.1191479239739253,
-      "start_time": 15.342697529648468,
-      "speaker_id": "6177"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007470.json b/conversations/conv_007470.json
deleted file mode 100644
index 461588b65f108cc9dba921657da0a5c2fea64894..0000000000000000000000000000000000000000
--- a/conversations/conv_007470.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.255545645409944,
-      "duration": 4.255545645409944,
-      "start_frame": 0,
-      "duration_frames": 68088,
-      "overlap": false,
-      "utterance_id": "1110-134828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134828.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.117715076037275,
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-      "duration_frames": 52962,
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-      "utterance_id": "1933-146437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.121939858328528,
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-      "overlap": false,
-      "utterance_id": "5688-41232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-41232.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.194622859954368,
-      "end_time": 21.966060729489673,
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-      "overlap": false,
-      "utterance_id": "1110-134828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134828.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 68088
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.495971048515965,
-      "end_time": 28.69739094397849,
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-      "overlap": false,
-      "utterance_id": "1933-146437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 52962
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.63903842154305,
-      "end_time": 32.0,
-      "duration": 2.3609615784569513,
-      "start_frame": 474224,
-      "duration_frames": 37775,
-      "overlap": false,
-      "utterance_id": "5688-41232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-41232.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 86193
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1110/laugh/0058.wav",
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-      "start_time": 0,
-      "speaker_id": "1110"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5688/laugh/0122.wav",
-      "duration": 1.0,
-      "start_time": 14.739546225157289,
-      "speaker_id": "5688"
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-    {
-      "event_class": "cough",
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-      "start_time": 22.09004449950017,
-      "speaker_id": "1110"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007476.json b/conversations/conv_007476.json
deleted file mode 100644
index 750a75e2ffb372786b1a53fea95ebc4caedd7785..0000000000000000000000000000000000000000
--- a/conversations/conv_007476.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.150044783532593,
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-      "real_speaker_id": "4152",
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-      "utterance_id": "8388-275212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-275212.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 111742
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "8388-278289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-278289.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.444715256466985,
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-      "utterance_id": "4152-12926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-    {
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-      "start_time": 31.648972796608042,
-      "speaker_id": "4152"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007477.json b/conversations/conv_007477.json
deleted file mode 100644
index acf212b7e66e9f758e0a752adb68f149a5defadd..0000000000000000000000000000000000000000
--- a/conversations/conv_007477.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.138253825170022,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31609.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5007",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.393035630917154,
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-      "utterance_id": "949-134660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134660.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_007482.json b/conversations/conv_007482.json
deleted file mode 100644
index 9db893a1742ba44c04eef1bd93d532b5d91c64b9..0000000000000000000000000000000000000000
--- a/conversations/conv_007482.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6458-61323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-61323.flac |",
-      "real_speaker_id": "6458",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "6707-73028",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-61323.flac |",
-      "real_speaker_id": "6458",
-      "position_frames": 116717
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.416015515806773,
-      "end_time": 30.14488465344764,
-      "duration": 3.728869137640868,
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-      "overlap": false,
-      "utterance_id": "439-123866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-123866.flac |",
-      "real_speaker_id": "439",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.41543984569982,
-      "end_time": 32.0,
-      "duration": 1.5845601543001813,
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-      "utterance_id": "6458-61323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-61323.flac |",
-      "real_speaker_id": "6458",
-      "position_frames": 209598
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6458/laugh/0040.wav",
-      "duration": 0.9251667345796064,
-      "start_time": 19.737940564139922,
-      "speaker_id": "6458"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6458/cough/0037.wav",
-      "duration": 1.092577224053549,
-      "start_time": 25.99250628027904,
-      "speaker_id": "6458"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007489.json b/conversations/conv_007489.json
deleted file mode 100644
index 93a617f36c5db8c51155b0732d5ecf43c6822bf9..0000000000000000000000000000000000000000
--- a/conversations/conv_007489.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.01457609394419,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.834599480698619,
-      "duration": 4.834599480698619,
-      "start_frame": 0,
-      "duration_frames": 77353,
-      "overlap": false,
-      "utterance_id": "5636-41795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41795.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.374637937226008,
-      "end_time": 10.286408090705006,
-      "duration": 4.911770153478999,
-      "start_frame": 85994,
-      "duration_frames": 78588,
-      "overlap": false,
-      "utterance_id": "5636-41795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41795.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 77353
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.956533628164093,
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-      "duration_frames": 65783,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.906640074026189,
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-      "duration_frames": 71479,
-      "overlap": false,
-      "utterance_id": "5636-41792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41792.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.3077627826591,
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-      "duration": 4.002213970570027,
-      "start_frame": 340924,
-      "duration_frames": 64035,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 65783
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.326354969756906,
-      "end_time": 31.01457609394419,
-      "duration": 5.688221124187283,
-      "start_frame": 405221,
-      "duration_frames": 91011,
-      "overlap": true,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 129818
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
-      "duration": 1.4461351864731262,
-      "start_time": 10.873466719109327
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5636/laugh/0103.wav",
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-      "start_time": 10.312403533538392,
-      "speaker_id": "5636"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5636/laugh/0006.wav",
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-      "start_time": 28.87868467384126,
-      "speaker_id": "3258"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007494.json b/conversations/conv_007494.json
deleted file mode 100644
index e51f6fb3887cd43a60cd695ff9deec637a286d30..0000000000000000000000000000000000000000
--- a/conversations/conv_007494.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.21202167230515,
-      "duration": 6.21202167230515,
-      "start_frame": 0,
-      "duration_frames": 99392,
-      "overlap": false,
-      "utterance_id": "4160-11550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11550.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.670359114001618,
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-      "utterance_id": "7800-283493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283493.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.100957276503863,
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-      "overlap": true,
-      "utterance_id": "4160-11549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11549.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.47485820236843,
-      "end_time": 25.967986790255928,
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-      "overlap": false,
-      "utterance_id": "7800-283478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283478.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.512919971782537,
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-      "overlap": false,
-      "utterance_id": "4160-11549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11549.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 77680
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.239554404166338,
-      "end_time": 32.0,
-      "duration": 1.7604455958336622,
-      "start_frame": 483832,
-      "duration_frames": 28167,
-      "overlap": false,
-      "utterance_id": "4290-14526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4160/laugh/0106.wav",
-      "duration": 1.140768942070762,
-      "start_time": 0,
-      "speaker_id": "4160"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4160/laugh/0012.wav",
-      "duration": 0.7553069280827542,
-      "start_time": 13.139758391779447,
-      "speaker_id": "4160"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4160/cough/0056.wav",
-      "duration": 0.4893501349203613,
-      "start_time": 25.97197059528266,
-      "speaker_id": "4160"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4290/laugh/0051.wav",
-      "duration": 0.7893847300635741,
-      "start_time": 31.210615269936426,
-      "speaker_id": "4290"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007498.json b/conversations/conv_007498.json
deleted file mode 100644
index 6d45a6f021da18a8da9a693d9cb0b6a1c4913198..0000000000000000000000000000000000000000
--- a/conversations/conv_007498.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.242238275957815,
-      "duration": 5.242238275957815,
-      "start_frame": 0,
-      "duration_frames": 83875,
-      "overlap": false,
-      "utterance_id": "8396-120282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120282.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.694504100862403,
-      "end_time": 10.947540570773945,
-      "duration": 5.253036469911542,
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-      "duration_frames": 84048,
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-      "utterance_id": "6199-48196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-48196.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.697138273067619,
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-      "overlap": true,
-      "utterance_id": "8396-240992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-240992.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.223323455033665,
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-      "duration": 4.205110648956448,
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-      "utterance_id": "6199-48196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-48196.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 84048
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.45408346169296,
-      "end_time": 32.0,
-      "duration": 3.54591653830704,
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-      "duration_frames": 56734,
-      "overlap": false,
-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 100325
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8396/laugh/0123.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "8396"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6199/cough/0092.wav",
-      "duration": 1.0244084131005065,
-      "start_time": 20.48413576598101,
-      "speaker_id": "6199"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6620/laugh/0048.wav",
-      "duration": 0.84,
-      "start_time": 27.524038434731295,
-      "speaker_id": "6620"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007504.json b/conversations/conv_007504.json
deleted file mode 100644
index 68eda31f13a33cc85950bdb995fb79fef20912c9..0000000000000000000000000000000000000000
--- a/conversations/conv_007504.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.193856563813425,
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-      "start_frame": 0,
-      "duration_frames": 99101,
-      "overlap": false,
-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "1456-136846",
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-      "real_speaker_id": "1456",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130553.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.051006816971952,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/606-127691.flac |",
-      "real_speaker_id": "606",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/606-127691.flac |",
-      "real_speaker_id": "606",
-      "position_frames": 106262
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.367413209730827,
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-      "overlap": false,
-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 99101
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 24.46542931047845,
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
-      "duration": 0.9133560090702948,
-      "start_time": 26.029194561221555
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7688/laugh/0040.wav",
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-      "start_time": 2.342133157327782,
-      "speaker_id": "7688"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/606/cough/0019.wav",
-      "duration": 1.16,
-      "start_time": 17.734907394461967,
-      "speaker_id": "606"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/606/laugh/0046.wav",
-      "duration": 0.5333895952130406,
-      "start_time": 25.656399391697438,
-      "speaker_id": "606"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7688/laugh/0014.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "7688"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007508.json b/conversations/conv_007508.json
deleted file mode 100644
index 2bcc3a3ae62ceb2ea022133e810d043158dfac84..0000000000000000000000000000000000000000
--- a/conversations/conv_007508.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.3683170248893566,
-      "duration": 3.3683170248893566,
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-      "overlap": false,
-      "utterance_id": "6097-293619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293619.flac |",
-      "real_speaker_id": "6097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.749108458516787,
-      "end_time": 8.380154102355583,
-      "duration": 4.631045643838795,
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-      "duration_frames": 74096,
-      "overlap": false,
-      "utterance_id": "6892-256224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256224.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.616459555478716,
-      "end_time": 12.456192709791791,
-      "duration": 3.8397331543130746,
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-      "duration_frames": 61435,
-      "overlap": false,
-      "utterance_id": "6097-293619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293619.flac |",
-      "real_speaker_id": "6097",
-      "position_frames": 53893
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.116859817802268,
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-      "utterance_id": "122-129752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-129752.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 18.28350925026178,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-278268.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
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-      "utterance_id": "122-121729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-121729.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 27.593554906010628,
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-      "utterance_id": "6892-256224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256224.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 74096
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-    {
-      "segment_id": "seg0007",
-      "speaker_id": 1,
-      "start_time": 31.368240059055513,
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-      "duration": 0.6317599409444874,
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-      "utterance_id": "6892-256226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256226.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
-      "duration": 2.0681362246606083,
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007512.json b/conversations/conv_007512.json
deleted file mode 100644
index 4ebee8982919e014472e7425447057c124292251..0000000000000000000000000000000000000000
--- a/conversations/conv_007512.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 6.961185466479819,
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-      "overlap": false,
-      "utterance_id": "2498-134786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134786.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.053137684174717,
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-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
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-      "utterance_id": "2374-160960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-160960.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "duration_frames": 88120,
-      "overlap": true,
-      "utterance_id": "2374-155651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.20721888726515,
-      "end_time": 28.860383623511233,
-      "duration": 4.653164736246083,
-      "start_frame": 387315,
-      "duration_frames": 74450,
-      "overlap": false,
-      "utterance_id": "2498-134816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134816.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.564158445067747,
-      "end_time": 32.0,
-      "duration": 2.435841554932253,
-      "start_frame": 473026,
-      "duration_frames": 38973,
-      "overlap": false,
-      "utterance_id": "2374-160960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-160960.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 82629
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 25.20655328798186,
-      "start_time": 3.648922993336651
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2374/laugh/0006.wav",
-      "duration": 1.44,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2374/cough/0021.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007523.json b/conversations/conv_007523.json
deleted file mode 100644
index d29ec844b3e2ef89217129499b990fd51a5e5643..0000000000000000000000000000000000000000
--- a/conversations/conv_007523.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "1664-137600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.014170936360861,
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-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "1107-134311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-134311.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 64793
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "1107",
-      "position_frames": 66080
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.09426177854215,
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-      "duration": 0.9057382214578489,
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-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 233213
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007524.json b/conversations/conv_007524.json
deleted file mode 100644
index 8361b01b848927b500008704b25e827851dbf395..0000000000000000000000000000000000000000
--- a/conversations/conv_007524.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8742-245708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245708.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.235508355746994,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6506.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245707.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.974806204850598,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6506.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 104503
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.19624684048338,
-      "end_time": 29.425970779221,
-      "duration": 6.229723938737621,
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-      "utterance_id": "4356-6498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6498.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.648736383621866,
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-      "duration": 2.3512636163781337,
-      "start_frame": 474379,
-      "duration_frames": 37620,
-      "overlap": false,
-      "utterance_id": "8742-245707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245707.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 64667
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8742/laugh/0126.wav",
-      "duration": 0.98,
-      "start_time": 0,
-      "speaker_id": "8742"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8742/laugh/0083.wav",
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-      "speaker_id": "8742"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007528.json b/conversations/conv_007528.json
deleted file mode 100644
index 17aa022b327e90680ee9b8ca966125e244d5542b..0000000000000000000000000000000000000000
--- a/conversations/conv_007528.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 1,
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-      "utterance_id": "4010-10798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10798.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
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-      "utterance_id": "4010-10822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10822.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
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-    {
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-      "utterance_id": "778-126734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
-      "real_speaker_id": "778",
-      "position_frames": 69368
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 17.69803099146408,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10801.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
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-      "start_time": 25.049336941370782,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136955.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.86467631307013,
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-      "utterance_id": "4010-10798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10798.flac |",
-      "real_speaker_id": "4010",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "4010"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/778/cough/0026.wav",
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-      "start_time": 12.615448619532733,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4010/laugh/0039.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4010/laugh/0096.wav",
-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "4010"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007532.json b/conversations/conv_007532.json
deleted file mode 100644
index 4aa83e0f699f3a6f2f2b00d5d6fe53b52e343b80..0000000000000000000000000000000000000000
--- a/conversations/conv_007532.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7687-107687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58759.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "7360",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.00692720502622,
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-      "overlap": false,
-      "utterance_id": "7687-107687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
-      "position_frames": 135864
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.13520409083014,
-      "end_time": 32.0,
-      "duration": 5.86479590916986,
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-      "duration_frames": 93836,
-      "overlap": false,
-      "utterance_id": "7360-86712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7360-86712.flac |",
-      "real_speaker_id": "7360",
-      "position_frames": 106823
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "7360"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007535.json b/conversations/conv_007535.json
deleted file mode 100644
index 0df6e794335ca193f21b3a79df3e991ece1ef90b..0000000000000000000000000000000000000000
--- a/conversations/conv_007535.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.865095930079534,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
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-      "utterance_id": "8273-283130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-283130.flac |",
-      "real_speaker_id": "8273",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 17.437435806257408,
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-      "utterance_id": "1187-136238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136238.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.786690487404275,
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-      "overlap": true,
-      "utterance_id": "8072-284670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
-      "position_frames": 78441
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.47084158272916,
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-      "overlap": false,
-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 94228
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
-      "duration": 15.008072019219345,
-      "start_time": 8.112268768792681
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.9884800049854605,
-      "start_time": 16.74937978242556
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1187/cough/0016.wav",
-      "duration": 1.34,
-      "start_time": 0,
-      "speaker_id": "1187"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8072/cough/0019.wav",
-      "duration": 1.0075014647228462,
-      "start_time": 5.603586944029432,
-      "speaker_id": "8072"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8273/laugh/0026.wav",
-      "duration": 1.0330827071277686,
-      "start_time": 17.19381461510937,
-      "speaker_id": "8273"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007545.json b/conversations/conv_007545.json
deleted file mode 100644
index f952340a2009b99aa7c6f655c69ca768c9aaad88..0000000000000000000000000000000000000000
--- a/conversations/conv_007545.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.792625992458941,
-      "duration": 6.792625992458941,
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-      "overlap": false,
-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.365349027088347,
-      "end_time": 12.651233387172962,
-      "duration": 5.285884360084615,
-      "start_frame": 117845,
-      "duration_frames": 84574,
-      "overlap": false,
-      "utterance_id": "1552-141135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-141135.flac |",
-      "real_speaker_id": "1552",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.284349393595056,
-      "end_time": 17.30330285694317,
-      "duration": 4.018953463348112,
-      "start_frame": 212549,
-      "duration_frames": 64303,
-      "overlap": true,
-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 108682
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.85701839567328,
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-      "start_frame": 285712,
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-      "overlap": true,
-      "utterance_id": "1552-140656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-140656.flac |",
-      "real_speaker_id": "1552",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.609879240480037,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187466.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.596237485503913,
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-      "duration": 3.403762514496087,
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-      "duration_frames": 54460,
-      "overlap": false,
-      "utterance_id": "1552-141135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-141135.flac |",
-      "real_speaker_id": "1552",
-      "position_frames": 84574
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 1.8847217494859225,
-      "start_time": 7.092529406369987
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/711/cough/0020.wav",
-      "duration": 1.1071213928094632,
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-    {
-      "event_class": "cough",
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-      "duration": 0.47887570405202995,
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-    {
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-      "speaker_id": "1552"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/711/laugh/0056.wav",
-      "duration": 1.4,
-      "start_time": 21.116815078870406,
-      "speaker_id": "711"
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-    {
-      "event_class": "cough",
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-      "duration": 1.32,
-      "start_time": 27.44299817368377,
-      "speaker_id": "711"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1552/laugh/0035.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1552/cough/0075.wav",
-      "duration": 0.3717432137537,
-      "start_time": 28.041279274086694,
-      "speaker_id": "1552"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007548.json b/conversations/conv_007548.json
deleted file mode 100644
index 3d8b079d8600fda3e1961ac345c61fd205c3690e..0000000000000000000000000000000000000000
--- a/conversations/conv_007548.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.015799443546,
-      "duration": 4.015799443546,
-      "start_frame": 0,
-      "duration_frames": 64252,
-      "overlap": false,
-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.488113097171415,
-      "end_time": 8.575835847019853,
-      "duration": 4.087722749848438,
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-      "duration_frames": 65403,
-      "overlap": false,
-      "utterance_id": "6377-34630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34630.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.677078468712132,
-      "end_time": 21.456123979571444,
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-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 64252
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.09636484229944,
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-      "utterance_id": "6377-34630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34630.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 65403
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.748696333360094,
-      "end_time": 32.0,
-      "duration": 2.251303666639906,
-      "start_frame": 475979,
-      "duration_frames": 36020,
-      "overlap": false,
-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 140716
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 17.086702641149714
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
-      "duration": 0.236984126984127,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2618/laugh/0087.wav",
-      "duration": 1.04,
-      "start_time": 12.009352747946254,
-      "speaker_id": "2618"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6377/cough/0137.wav",
-      "duration": 0.5100137639230407,
-      "start_time": 21.48812188247238,
-      "speaker_id": "6377"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1040/laugh/0062.wav",
-      "duration": 1.32,
-      "start_time": 29.91562808829981,
-      "speaker_id": "1040"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1040/cough/0026.wav",
-      "duration": 0.31850954644357427,
-      "start_time": 31.681490453556425,
-      "speaker_id": "1040"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007549.json b/conversations/conv_007549.json
deleted file mode 100644
index d7031dbb52c58b3f3ca0c213ca3242201a4fa3a2..0000000000000000000000000000000000000000
--- a/conversations/conv_007549.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.194532385505772,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3143-160993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3143-160993.flac |",
-      "real_speaker_id": "3143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.647561020518801,
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-      "duration_frames": 95298,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-155646.flac |",
-      "real_speaker_id": "1923",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1564-142299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.779404215896758,
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-      "utterance_id": "3143-160986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3143-160986.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1923",
-      "position_frames": 95298
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "3143",
-      "position_frames": 99112
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "duration": 2.6748662247536936,
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1923/cough/0071.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1564/cough/0036.wav",
-      "duration": 0.9123311850460036,
-      "start_time": 14.524284890747209,
-      "speaker_id": "1564"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007553.json b/conversations/conv_007553.json
deleted file mode 100644
index ace6cc66fd55d2a6173854185d0193bbbf8bbe46..0000000000000000000000000000000000000000
--- a/conversations/conv_007553.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.17733389136006,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.641330352944652,
-      "duration": 4.641330352944652,
-      "start_frame": 0,
-      "duration_frames": 74261,
-      "overlap": false,
-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.011004372885112,
-      "end_time": 10.840351672534343,
-      "duration": 5.82934729964923,
-      "start_frame": 80176,
-      "duration_frames": 93269,
-      "overlap": false,
-      "utterance_id": "7398-98877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98877.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.139481110699162,
-      "end_time": 15.047874197016878,
-      "duration": 3.9083930863177154,
-      "start_frame": 178231,
-      "duration_frames": 62534,
-      "overlap": false,
-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 74261
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.238678539173993,
-      "end_time": 20.27926319553168,
-      "duration": 5.040584656357686,
-      "start_frame": 243818,
-      "duration_frames": 80649,
-      "overlap": true,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.68263006294075,
-      "end_time": 27.349408730841972,
-      "duration": 5.666778667901221,
-      "start_frame": 346922,
-      "duration_frames": 90668,
-      "overlap": false,
-      "utterance_id": "7398-98876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98876.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.127552752558415,
-      "end_time": 31.17733389136006,
-      "duration": 4.049781138801645,
-      "start_frame": 434040,
-      "duration_frames": 64796,
-      "overlap": true,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 80649
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
-      "duration": 2.130893705341647,
-      "start_time": 2.2639934765221854
-    },
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
-      "duration": 0.6340362811791384,
-      "start_time": 19.82523390081017
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1413/laugh/0002.wav",
-      "duration": 1.5227394531589178,
-      "start_time": 0,
-      "speaker_id": "1413"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7398/laugh/0002.wav",
-      "duration": 0.8230129603294811,
-      "start_time": 8.020054610250007,
-      "speaker_id": "7398"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7398/cough/0012.wav",
-      "duration": 0.7398057666478319,
-      "start_time": 10.947959259301255,
-      "speaker_id": "7398"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1704/laugh/0009.wav",
-      "duration": 0.5879755942001064,
-      "start_time": 18.446450957743735,
-      "speaker_id": "1704"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1704/laugh/0038.wav",
-      "duration": 1.04,
-      "start_time": 28.269113559086133,
-      "speaker_id": "1704"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007562.json b/conversations/conv_007562.json
deleted file mode 100644
index 63ae4a4704f5d18c2a015829a2546afa67de5fcd..0000000000000000000000000000000000000000
--- a/conversations/conv_007562.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.814722600805841,
-      "duration": 6.814722600805841,
-      "start_frame": 0,
-      "duration_frames": 109035,
-      "overlap": false,
-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.005200395874458,
-      "end_time": 11.4223171389629,
-      "duration": 4.4171167430884415,
-      "start_frame": 112083,
-      "duration_frames": 70673,
-      "overlap": false,
-      "utterance_id": "1034-121119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.642777383825935,
-      "end_time": 16.968566663355638,
-      "duration": 5.325789279529705,
-      "start_frame": 186284,
-      "duration_frames": 85212,
-      "overlap": false,
-      "utterance_id": "4145-104606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-104606.flac |",
-      "real_speaker_id": "4145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.542563556583538,
-      "end_time": 23.067289756105197,
-      "duration": 5.524726199521657,
-      "start_frame": 280681,
-      "duration_frames": 88395,
-      "overlap": false,
-      "utterance_id": "1034-121119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
-      "position_frames": 70673
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.71758746817788,
-      "end_time": 29.06718244390408,
-      "duration": 5.349594975726203,
-      "start_frame": 379481,
-      "duration_frames": 85593,
-      "overlap": false,
-      "utterance_id": "8591-284445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284445.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.681659660063787,
-      "end_time": 32.0,
-      "duration": 2.3183403399362135,
-      "start_frame": 474906,
-      "duration_frames": 37093,
-      "overlap": false,
-      "utterance_id": "1034-121119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
-      "position_frames": 159068
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
-      "duration": 3.2286769429650266,
-      "start_time": 17.86721301003972
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_007565.json b/conversations/conv_007565.json
deleted file mode 100644
index 185285e181f84fa0a1f551796e0bd27dd973c026..0000000000000000000000000000000000000000
--- a/conversations/conv_007565.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.844591006462036,
-      "duration": 4.844591006462036,
-      "start_frame": 0,
-      "duration_frames": 77513,
-      "overlap": false,
-      "utterance_id": "3008-164327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.796685989993623,
-      "end_time": 9.868931194012836,
-      "duration": 4.072245204019213,
-      "start_frame": 92746,
-      "duration_frames": 65155,
-      "overlap": false,
-      "utterance_id": "1748-1562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1562.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.012500397458696,
-      "end_time": 13.741484982285773,
-      "duration": 3.7289845848270753,
-      "start_frame": 160200,
-      "duration_frames": 59663,
-      "overlap": false,
-      "utterance_id": "3679-159363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
-      "real_speaker_id": "3679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.879631592474373,
-      "end_time": 17.212414269228052,
-      "duration": 3.3327826767536775,
-      "start_frame": 222074,
-      "duration_frames": 53324,
-      "overlap": true,
-      "utterance_id": "1748-1560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1560.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.167305085734558,
-      "end_time": 22.526631336162176,
-      "duration": 5.359326250427618,
-      "start_frame": 274676,
-      "duration_frames": 85749,
-      "overlap": true,
-      "utterance_id": "3679-159363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
-      "real_speaker_id": "3679",
-      "position_frames": 59663
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.891584222122738,
-      "end_time": 30.51043993842955,
-      "duration": 6.61885571630681,
-      "start_frame": 382265,
-      "duration_frames": 105901,
-      "overlap": false,
-      "utterance_id": "1748-1560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1560.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 53324
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.17227081923113,
-      "end_time": 32.0,
-      "duration": 0.8277291807688698,
-      "start_frame": 498756,
-      "duration_frames": 13243,
-      "overlap": false,
-      "utterance_id": "3008-164327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 77513
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
-      "start_time": 12.131137773174062
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1748/laugh/0049.wav",
-      "duration": 1.32,
-      "start_time": 9.964661320841802,
-      "speaker_id": "1748"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3679/laugh/0025.wav",
-      "duration": 1.48,
-      "start_time": 8.362590112346357,
-      "speaker_id": "3679"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3679/cough/0076.wav",
-      "duration": 1.4176002745610086,
-      "start_time": 15.716830670361265,
-      "speaker_id": "3679"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3008/laugh/0036.wav",
-      "duration": 0.9481818861080218,
-      "start_time": 30.062058765182723,
-      "speaker_id": "3008"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007569.json b/conversations/conv_007569.json
deleted file mode 100644
index 47a0b85f50c96e7bf1c01a044b4b7664b22081ed..0000000000000000000000000000000000000000
--- a/conversations/conv_007569.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.578698634238652,
-      "duration": 6.578698634238652,
-      "start_frame": 0,
-      "duration_frames": 105259,
-      "overlap": false,
-      "utterance_id": "7338-92174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92174.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.716917707093229,
-      "end_time": 10.40380022620726,
-      "duration": 3.686882519114031,
-      "start_frame": 107470,
-      "duration_frames": 58990,
-      "overlap": false,
-      "utterance_id": "4290-14526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.625527139566199,
-      "end_time": 16.11047713874825,
-      "duration": 5.484949999182053,
-      "start_frame": 170008,
-      "duration_frames": 87759,
-      "overlap": false,
-      "utterance_id": "7338-81521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-81521.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.076096161644305,
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-      "duration_frames": 92448,
-      "overlap": true,
-      "utterance_id": "4290-14526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 58990
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7338-92154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92154.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7338/laugh/0023.wav",
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-      "speaker_id": "17"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007573.json b/conversations/conv_007573.json
deleted file mode 100644
index e8e89aff65ac808b802a7ddda92d831033295261..0000000000000000000000000000000000000000
--- a/conversations/conv_007573.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 5.94885427233541,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4911.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 79422
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.560498837863229,
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-      "duration": 3.8137211721189592,
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-      "utterance_id": "3192-4910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4910.flac |",
-      "real_speaker_id": "3192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.605539589406547,
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-      "overlap": true,
-      "utterance_id": "8432-16000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-16000.flac |",
-      "real_speaker_id": "8432",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.39901806434957,
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-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 141240
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.665620581935187,
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-      "utterance_id": "8432-16000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-16000.flac |",
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8432/laugh/0001.wav",
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-      "start_time": 30.52,
-      "speaker_id": "8432"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007574.json b/conversations/conv_007574.json
deleted file mode 100644
index c6c4ec77e6c5720b98c3ce2a6ed3d6783eff3c8c..0000000000000000000000000000000000000000
--- a/conversations/conv_007574.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.650976331914176,
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-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 277174
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007586.json b/conversations/conv_007586.json
deleted file mode 100644
index 6d9248a39560556ccc58d42dec54491c8e45e077..0000000000000000000000000000000000000000
--- a/conversations/conv_007586.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 82899
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "829-123190",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/829-123190.flac |",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_007590.json b/conversations/conv_007590.json
deleted file mode 100644
index 9342ff7595a34bb08997c02fcd8a0543202e8633..0000000000000000000000000000000000000000
--- a/conversations/conv_007590.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.02,
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-      "speaker_id": "5459"
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-      "event_class": "laugh",
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-      "start_time": 18.77872800389241,
-      "speaker_id": "3001"
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "speaker_id": "1603"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007601.json b/conversations/conv_007601.json
deleted file mode 100644
index 82b2fb74f0ae4637b060807d02f2664b2ba469a4..0000000000000000000000000000000000000000
--- a/conversations/conv_007601.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.820135654388187,
-      "duration": 4.820135654388187,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "82-122859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.335147929555824,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106974.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 0
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-      "utterance_id": "82-121544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-121544.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.2022887783907,
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-      "duration": 4.305235787791029,
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-      "overlap": false,
-      "utterance_id": "82-122859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 77122
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.598422617241763,
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-      "utterance_id": "7704-106969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106969.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.833618148665646,
-      "end_time": 32.0,
-      "duration": 4.166381851334354,
-      "start_frame": 445337,
-      "duration_frames": 66662,
-      "overlap": false,
-      "utterance_id": "82-121544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-121544.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 76407
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "cough",
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-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "82"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7704/cough/0066.wav",
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-      "speaker_id": "82"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007617.json b/conversations/conv_007617.json
deleted file mode 100644
index 7292db7f8636331b66b99d007248651cee0469ec..0000000000000000000000000000000000000000
--- a/conversations/conv_007617.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.240947487534896,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "end_time": 6.606695079596289,
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-      "overlap": false,
-      "utterance_id": "1653-141272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-141272.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.8507599614981105,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142352.flac |",
-      "real_speaker_id": "1653",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-286289.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.376538555539764,
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-      "overlap": true,
-      "utterance_id": "1653-142352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142352.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 81836
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
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-    {
-      "event_class": "Cat",
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-      "event_class": "laugh",
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-      "speaker_id": "6232"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007621.json b/conversations/conv_007621.json
deleted file mode 100644
index ec2bda9edfd543b59e5684b0ddd380684461bd28..0000000000000000000000000000000000000000
--- a/conversations/conv_007621.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007636.json b/conversations/conv_007636.json
deleted file mode 100644
index 3891a76202af51d91f45bb3a109dc23f9505f84a..0000000000000000000000000000000000000000
--- a/conversations/conv_007636.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "end_time": 27.04007517819325,
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-      "utterance_id": "2491-134787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
-      "real_speaker_id": "2491",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.736202126758133,
-      "end_time": 32.0,
-      "duration": 4.263797873241867,
-      "start_frame": 443779,
-      "duration_frames": 68220,
-      "overlap": false,
-      "utterance_id": "5724-13364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 109297
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 25.147090235247948,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
-      "duration": 0.41732426303854875,
-      "start_time": 23.21809048963536
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2050/laugh/0103.wav",
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-      "start_time": 8.997437015157526,
-      "speaker_id": "2050"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2050/cough/0106.wav",
-      "duration": 0.5913181892743542,
-      "start_time": 12.968717327925972,
-      "speaker_id": "2050"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5724/cough/0116.wav",
-      "duration": 1.0543607153918533,
-      "start_time": 30.94563928460815,
-      "speaker_id": "5724"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007637.json b/conversations/conv_007637.json
deleted file mode 100644
index dbee71e768e77b2037bf7fd3f45337093b12855d..0000000000000000000000000000000000000000
--- a/conversations/conv_007637.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.8339139822065995,
-      "duration": 5.8339139822065995,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4490-16003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16003.flac |",
-      "real_speaker_id": "4490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.943735400930674,
-      "end_time": 11.229563999723293,
-      "duration": 5.285828598792619,
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-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.978547651643419,
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-      "duration": 4.115190841365932,
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-      "duration_frames": 65843,
-      "overlap": false,
-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.851203660568547,
-      "end_time": 22.133046421990095,
-      "duration": 5.281842761421549,
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-      "duration_frames": 84509,
-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 84573
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.675906011272286,
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-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 169082
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.690051276816227,
-      "end_time": 32.0,
-      "duration": 3.3099487231837728,
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-      "overlap": false,
-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 65843
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
-      "duration": 1.0638625408279214,
-      "start_time": 3.461743240831473
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1678/cough/0043.wav",
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-      "speaker_id": "1678"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007640.json b/conversations/conv_007640.json
deleted file mode 100644
index 198ddd8fe3fdecca444f69a0ed15baea338f8ece..0000000000000000000000000000000000000000
--- a/conversations/conv_007640.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.756976950378583,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "5062-294697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294697.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.5581475296857965,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.787042018115297,
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-      "duration_frames": 70811,
-      "overlap": true,
-      "utterance_id": "6426-64292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64292.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.991357116851981,
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-      "duration": 4.406917636545577,
-      "start_frame": 255861,
-      "duration_frames": 70510,
-      "overlap": false,
-      "utterance_id": "5062-294700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294700.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.115209433348415,
-      "end_time": 27.47935109367019,
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-      "overlap": false,
-      "utterance_id": "2238-121415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 79799
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294697.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 72657
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_007656.json b/conversations/conv_007656.json
deleted file mode 100644
index 08fce633688a21c0e15d5580d66a647dabb873e2..0000000000000000000000000000000000000000
--- a/conversations/conv_007656.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3912-3831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-3831.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "duration_frames": 68023,
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-      "utterance_id": "4379-18034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18034.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "duration_frames": 60405,
-      "overlap": false,
-      "utterance_id": "7000-83708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83708.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.760022258165675,
-      "end_time": 19.633913165816054,
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-      "duration_frames": 93982,
-      "overlap": false,
-      "utterance_id": "7000-83696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83696.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.811611025817506,
-      "end_time": 25.840630265296078,
-      "duration": 6.029019239478571,
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-      "overlap": false,
-      "utterance_id": "3912-3831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-3831.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 73678
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.409975290048024,
-      "end_time": 32.0,
-      "duration": 5.590024709951976,
-      "start_frame": 422559,
-      "duration_frames": 89440,
-      "overlap": false,
-      "utterance_id": "4379-18040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18040.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007660.json b/conversations/conv_007660.json
deleted file mode 100644
index 4a772503cbc2742926b332616484227b535e3ec1..0000000000000000000000000000000000000000
--- a/conversations/conv_007660.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6724-74002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-74002.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2997-163246",
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-      "real_speaker_id": "2997",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5712-48842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48842.flac |",
-      "real_speaker_id": "5712",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.555414911930875,
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-      "position_frames": 81554
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 64323
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-    {
-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48848.flac |",
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-      "duration": 1.2,
-      "start_time": 9.79029508709908,
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-      "event_class": "laugh",
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-      "start_time": 30.67861236710033,
-      "speaker_id": "5712"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007661.json b/conversations/conv_007661.json
deleted file mode 100644
index 1d9d891bd35f05398762848603054fd51803e37a..0000000000000000000000000000000000000000
--- a/conversations/conv_007661.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1938-176228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-176228.flac |",
-      "real_speaker_id": "1938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.768641772078873,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-296078.flac |",
-      "real_speaker_id": "8677",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1938-180290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-180290.flac |",
-      "real_speaker_id": "1938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.911222623333252,
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-      "duration": 6.626806932759326,
-      "start_frame": 254579,
-      "duration_frames": 106028,
-      "overlap": false,
-      "utterance_id": "915-163370",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163370.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.6759199561963,
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-      "duration": 6.055063026148481,
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-      "duration_frames": 96881,
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-      "utterance_id": "8677-246948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-246948.flac |",
-      "real_speaker_id": "8677",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.584358693580953,
-      "end_time": 32.0,
-      "duration": 2.4156413064190474,
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-      "overlap": false,
-      "utterance_id": "1938-176228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-176228.flac |",
-      "real_speaker_id": "1938",
-      "position_frames": 65154
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1938"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007671.json b/conversations/conv_007671.json
deleted file mode 100644
index b8d6362e345687a1780cf5d384ea9a83041ed4bd..0000000000000000000000000000000000000000
--- a/conversations/conv_007671.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "duration": 6.386015042589722,
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-      "utterance_id": "4071-176278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-176278.flac |",
-      "real_speaker_id": "4071",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80656.flac |",
-      "real_speaker_id": "7229",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80656.flac |",
-      "real_speaker_id": "7229",
-      "position_frames": 91972
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.851582565904785,
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-      "utterance_id": "7229-80656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80656.flac |",
-      "real_speaker_id": "7229",
-      "position_frames": 157277
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.831892129237023,
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-      "duration": 4.168107870762977,
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-      "duration_frames": 66689,
-      "overlap": false,
-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 61877
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-    {
-      "event_class": "Blender",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5217/laugh/0022.wav",
-      "duration": 1.72,
-      "start_time": 0,
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-      "duration": 1.2,
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-      "speaker_id": "7229"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "7229"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007676.json b/conversations/conv_007676.json
deleted file mode 100644
index 91f9c02566abddd836d2bb06101b7b98f496ffda..0000000000000000000000000000000000000000
--- a/conversations/conv_007676.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "duration": 4.620767056109053,
-      "start_frame": 0,
-      "duration_frames": 73932,
-      "overlap": false,
-      "utterance_id": "2208-10076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "6550-65820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2624-173598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-173598.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "2624-88360",
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-      "real_speaker_id": "2624",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.625682717047443,
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-      "duration_frames": 65322,
-      "overlap": false,
-      "utterance_id": "6550-65820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 58147
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.077337119747074,
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-      "duration": 0.9226628802529255,
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-      "utterance_id": "6550-53320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53320.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2624/laugh/0094.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "6550"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007683.json b/conversations/conv_007683.json
deleted file mode 100644
index 8fff98a876b6f007f8a37380643adc73a211fc1c..0000000000000000000000000000000000000000
--- a/conversations/conv_007683.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.240611614352936,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 0,
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-      "utterance_id": "3274-167022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3274-167022.flac |",
-      "real_speaker_id": "3274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "3274-167022",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1989-26962.flac |",
-      "real_speaker_id": "1989",
-      "position_frames": 78916
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.45257232801222,
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-      "utterance_id": "597-134789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/597-134789.flac |",
-      "real_speaker_id": "597",
-      "position_frames": 70787
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 21.408146548325888,
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3274/laugh/0075.wav",
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-      "speaker_id": "3274"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1989/laugh/0019.wav",
-      "duration": 1.56,
-      "start_time": 6.075399436622709,
-      "speaker_id": "1989"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3274/laugh/0087.wav",
-      "duration": 1.1,
-      "start_time": 8.545409134212331,
-      "speaker_id": "3274"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/597/laugh/0102.wav",
-      "duration": 1.44,
-      "start_time": 12.762265666231661,
-      "speaker_id": "597"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007695.json b/conversations/conv_007695.json
deleted file mode 100644
index d2a84538b0361cf479d99ac1a454c87460082346..0000000000000000000000000000000000000000
--- a/conversations/conv_007695.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 58430,
-      "overlap": false,
-      "utterance_id": "2518-154825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154825.flac |",
-      "real_speaker_id": "2518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.001901389430079,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-19215.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.455907534463712,
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-      "overlap": false,
-      "utterance_id": "5652-19215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-19215.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 91098
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.716172163594505,
-      "end_time": 22.609782697891916,
-      "duration": 6.8936105342974106,
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-      "duration_frames": 110297,
-      "overlap": false,
-      "utterance_id": "85-121551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
-      "real_speaker_id": "85",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.257767677682967,
-      "end_time": 26.642351096382022,
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-      "start_frame": 372124,
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-      "overlap": false,
-      "utterance_id": "2518-154826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154826.flac |",
-      "real_speaker_id": "2518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.091884947243383,
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-      "duration": 4.908115052756617,
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-      "duration_frames": 78529,
-      "overlap": false,
-      "utterance_id": "5652-19215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-19215.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 169113
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "event_class": "Dog",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5652/laugh/0055.wav",
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-      "duration": 1.24,
-      "start_time": 25.67865021961619,
-      "speaker_id": "5652"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007699.json b/conversations/conv_007699.json
deleted file mode 100644
index 7e9e1f135e72d8be88dae55f7368fe6a37ab2407..0000000000000000000000000000000000000000
--- a/conversations/conv_007699.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-      "overlap": false,
-      "utterance_id": "1100-135264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-135264.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
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-      "real_speaker_id": "1365",
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-      "real_speaker_id": "1365",
-      "position_frames": 79131
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-      "start_time": 15.86659659519891,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105171.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105171.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 101288
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1365-134804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134804.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7828/laugh/0044.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7828/cough/0040.wav",
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-      "start_time": 23.38033190157828,
-      "speaker_id": "7828"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007705.json b/conversations/conv_007705.json
deleted file mode 100644
index e6dca550d7daf1e76a3ec7d9b7bc69ae0f05b364..0000000000000000000000000000000000000000
--- a/conversations/conv_007705.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1365-134825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134825.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.134448233284777,
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-      "utterance_id": "22-121148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121148.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121148.flac |",
-      "real_speaker_id": "22",
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-    {
-      "segment_id": "seg0003",
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-      "duration_frames": 75871,
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-      "utterance_id": "22-121148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121148.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 199747
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.368822812302078,
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-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.46686673859844,
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-      "overlap": false,
-      "utterance_id": "1365-134830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134830.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_19.wav",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 8.295135128774875,
-      "speaker_id": "22"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007709.json b/conversations/conv_007709.json
deleted file mode 100644
index 16cd2112932f145bcbe8443a87be1a70e36a0e23..0000000000000000000000000000000000000000
--- a/conversations/conv_007709.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.1558352799750224,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "551-129024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "2312-147629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2312-147629.flac |",
-      "real_speaker_id": "2312",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "position_frames": 79598
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 161179
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2312/laugh/0118.wav",
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-      "start_time": 8.89727113124314,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 18.221234328337054,
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-      "event_class": "cough",
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-      "speaker_id": "2312"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007713.json b/conversations/conv_007713.json
deleted file mode 100644
index 72640ac6eef3d43a5d0858c460c70d3e22d83fed..0000000000000000000000000000000000000000
--- a/conversations/conv_007713.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8444-281329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.774869879211143,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278218.flac |",
-      "real_speaker_id": "8197",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "4313-9936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-9936.flac |",
-      "real_speaker_id": "4313",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
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-      "start_time": 23.93719759434445,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278199.flac |",
-      "real_speaker_id": "8197",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_007718.json b/conversations/conv_007718.json
deleted file mode 100644
index aab9aa35a23068830586d151585e43d4e1802d05..0000000000000000000000000000000000000000
--- a/conversations/conv_007718.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-136442.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-134780.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.388087116071457,
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-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 89002
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-  "foreground_events": [
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007724.json b/conversations/conv_007724.json
deleted file mode 100644
index b0d129079768de50ab64e07bc07278f7fc1f2a98..0000000000000000000000000000000000000000
--- a/conversations/conv_007724.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4260-176853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176853.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "8447",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8011-111754",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-111754.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286257.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 78017
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4260-176854",
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_007725.json b/conversations/conv_007725.json
deleted file mode 100644
index 44e6b076f8ca07f465f8c6f3fd736305a7f0da0a..0000000000000000000000000000000000000000
--- a/conversations/conv_007725.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.186462944957336,
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-      "real_speaker_id": "294",
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-    {
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-      "utterance_id": "4719-25765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "speaker_id": 1,
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-      "utterance_id": "8382-294774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 68369
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "speaker_id": "294"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007729.json b/conversations/conv_007729.json
deleted file mode 100644
index f001ff704468231501807f216440a1b710a35e04..0000000000000000000000000000000000000000
--- a/conversations/conv_007729.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7030-64588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-62827.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 78390
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-62828.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007733.json b/conversations/conv_007733.json
deleted file mode 100644
index 9c22280d555da4ba5898e038c9058eab3b933a4c..0000000000000000000000000000000000000000
--- a/conversations/conv_007733.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136912.flac |",
-      "real_speaker_id": "1097",
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-      "position_frames": 0
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-      "real_speaker_id": "4160",
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007734.json b/conversations/conv_007734.json
deleted file mode 100644
index ea378cd4814b623b0a90b29b2cb0a78363f9f465..0000000000000000000000000000000000000000
--- a/conversations/conv_007734.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6544/laugh/0010.wav",
-      "duration": 1.006377980745634,
-      "start_time": 30.993622019254367,
-      "speaker_id": "6544"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/820/cough/0043.wav",
-      "duration": 0.9869618293053197,
-      "start_time": 31.01303817069468,
-      "speaker_id": "820"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007744.json b/conversations/conv_007744.json
deleted file mode 100644
index e6bd552f11371351c7dc8b7efb06cd675b16e702..0000000000000000000000000000000000000000
--- a/conversations/conv_007744.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.49550047387961,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.837016043278971,
-      "duration": 3.837016043278971,
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-      "duration_frames": 61392,
-      "overlap": false,
-      "utterance_id": "1065-134611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134611.flac |",
-      "real_speaker_id": "1065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.5986210352667363,
-      "end_time": 7.353312027771189,
-      "duration": 3.754690992504452,
-      "start_frame": 57577,
-      "duration_frames": 60075,
-      "overlap": true,
-      "utterance_id": "7777-106366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.640055416106707,
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-      "utterance_id": "1065-134593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134593.flac |",
-      "real_speaker_id": "1065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.036430923702014,
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-      "duration": 5.862727814037029,
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-      "overlap": false,
-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.740602865192642,
-      "end_time": 24.229059910068738,
-      "duration": 3.488457044876095,
-      "start_frame": 331849,
-      "duration_frames": 55815,
-      "overlap": false,
-      "utterance_id": "1065-134593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134593.flac |",
-      "real_speaker_id": "1065",
-      "position_frames": 78818
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.878067695659063,
-      "end_time": 30.04536562892556,
-      "duration": 5.167297933266495,
-      "start_frame": 398049,
-      "duration_frames": 82676,
-      "overlap": false,
-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 93803
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.31711796289541,
-      "end_time": 31.49550047387961,
-      "duration": 1.1783825109841999,
-      "start_frame": 485073,
-      "duration_frames": 18854,
-      "overlap": true,
-      "utterance_id": "1065-134593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134593.flac |",
-      "real_speaker_id": "1065",
-      "position_frames": 134633
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79638.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "start_time": 4.9871414265816885,
-      "speaker_id": "7777"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/328/laugh/0095.wav",
-      "duration": 1.3974614500138836,
-      "start_time": 20.01479653441899,
-      "speaker_id": "328"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/328/laugh/0022.wav",
-      "duration": 0.5145158046650651,
-      "start_time": 25.61660430604255,
-      "speaker_id": "328"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1065/laugh/0145.wav",
-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "1065"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007748.json b/conversations/conv_007748.json
deleted file mode 100644
index adaf1391fad57ee07de8508267d1810bb42c488d..0000000000000000000000000000000000000000
--- a/conversations/conv_007748.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.020087883462489,
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-      "overlap": false,
-      "utterance_id": "104-132091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-132091.flac |",
-      "real_speaker_id": "104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-292568.flac |",
-      "real_speaker_id": "7702",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1757-128103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128103.flac |",
-      "real_speaker_id": "1757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.493033290752972,
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-      "overlap": false,
-      "utterance_id": "1757-128127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128127.flac |",
-      "real_speaker_id": "1757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.935501602818636,
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-      "overlap": false,
-      "utterance_id": "104-132092",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-132092.flac |",
-      "real_speaker_id": "104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.726595363545123,
-      "end_time": 32.0,
-      "duration": 5.2734046364548774,
-      "start_frame": 427625,
-      "duration_frames": 84374,
-      "overlap": false,
-      "utterance_id": "104-123365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-123365.flac |",
-      "real_speaker_id": "104",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/104/laugh/0060.wav",
-      "duration": 1.48,
-      "start_time": 19.188188111169378,
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-    },
-    {
-      "event_class": "cough",
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-      "duration": 0.6814621997258329,
-      "start_time": 21.567354111527507,
-      "speaker_id": "104"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007752.json b/conversations/conv_007752.json
deleted file mode 100644
index 8082bcbf8ef0dcec2d33082ae788bda1dad9e886..0000000000000000000000000000000000000000
--- a/conversations/conv_007752.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.87381117428179,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "6918-61317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-61317.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "920",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1051-133883",
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-      "real_speaker_id": "1051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6918-47541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.775320304796217,
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-      "overlap": false,
-      "utterance_id": "1051-133883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1051-133883.flac |",
-      "real_speaker_id": "1051",
-      "position_frames": 101708
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1051/laugh/0077.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6918/laugh/0004.wav",
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-      "start_time": 24.001121135421794,
-      "speaker_id": "6918"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007759.json b/conversations/conv_007759.json
deleted file mode 100644
index 1300ff359f0e0d4a7de6232eb151dc1be88f9afc..0000000000000000000000000000000000000000
--- a/conversations/conv_007759.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "3244-10692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10692.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-174926.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007764.json b/conversations/conv_007764.json
deleted file mode 100644
index 561d97f3dd133fab5714c3350e23185b7cc3e227..0000000000000000000000000000000000000000
--- a/conversations/conv_007764.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.987054596537163,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121081.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-209.flac |",
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-      "start_time": 17.35625400042649,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1171-130776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.905125717277578,
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-      "duration": 5.081928879259585,
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-      "duration_frames": 81310,
-      "overlap": false,
-      "utterance_id": "58-121075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 85662
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007768.json b/conversations/conv_007768.json
deleted file mode 100644
index 4c519648637adf7ddcbecc864a0c7d789b2ff3e0..0000000000000000000000000000000000000000
--- a/conversations/conv_007768.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "8215",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 164515
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1680-142282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1680-142282.flac |",
-      "real_speaker_id": "1680",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "6925"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007772.json b/conversations/conv_007772.json
deleted file mode 100644
index 2ef85f1afdbfb369f150353d8be376a5746d3e95..0000000000000000000000000000000000000000
--- a/conversations/conv_007772.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "211-122425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122425.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-114468.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-258250.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 0
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-    {
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-      "start_time": 12.617146816319975,
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-      "utterance_id": "6248-302581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-302581.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 17.59002401574315,
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-      "utterance_id": "211-122442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122442.flac |",
-      "real_speaker_id": "211",
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-      "segment_id": "seg0005",
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-      "position_frames": 51860
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122442.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 82377
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_007787.json b/conversations/conv_007787.json
deleted file mode 100644
index 2dfb55d019c6876bfbe17f2efdfa225af3d8341d..0000000000000000000000000000000000000000
--- a/conversations/conv_007787.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.9795206829488,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
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-      "real_speaker_id": "1252",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276906.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.622449046411077,
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-      "utterance_id": "8259-276913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276913.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 19.762239637263484,
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-      "event_class": "cough",
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-      "duration": 0.6808278838554376,
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-}
\ No newline at end of file
diff --git a/conversations/conv_007791.json b/conversations/conv_007791.json
deleted file mode 100644
index d490743f80e33c9994ef697daa17691e7cf710c7..0000000000000000000000000000000000000000
--- a/conversations/conv_007791.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.28158761898315,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3866-9919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9919.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.967903050428897,
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-      "utterance_id": "3866-9919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9919.flac |",
-      "real_speaker_id": "3866",
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-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.271957779654787,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-      "duration": 1.44,
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-      "speaker_id": "2346"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007800.json b/conversations/conv_007800.json
deleted file mode 100644
index e25ca1c76490cb0ace133418b9a2e5c8cdfc90ad..0000000000000000000000000000000000000000
--- a/conversations/conv_007800.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 79410
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-}
\ No newline at end of file
diff --git a/conversations/conv_007816.json b/conversations/conv_007816.json
deleted file mode 100644
index 261299ef0cce9e99234cf850af86d9c7488c19d3..0000000000000000000000000000000000000000
--- a/conversations/conv_007816.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.787097328462732,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5802-76044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-76044.flac |",
-      "real_speaker_id": "5802",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-69032.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "82",
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-  "background_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_007820.json b/conversations/conv_007820.json
deleted file mode 100644
index 422164458ea4b6ed9845f016c2ac09bc29a147cb..0000000000000000000000000000000000000000
--- a/conversations/conv_007820.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.5714285714285714,
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-      "real_speaker_id": "8075",
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-      "utterance_id": "4640-19189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19189.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279239.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 123805
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "8075-279229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279229.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6912/laugh/0058.wav",
-      "duration": 1.28,
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 29.189150642969402,
-      "speaker_id": "8075"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007827.json b/conversations/conv_007827.json
deleted file mode 100644
index 4b10a836a3c5f1c956681a696ee026a6a97bc068..0000000000000000000000000000000000000000
--- a/conversations/conv_007827.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4297-13009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13009.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 3.233055621219675,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-85634.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13006.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5333-5097.flac |",
-      "real_speaker_id": "5333",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7055-87276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-87276.flac |",
-      "real_speaker_id": "7055",
-      "position_frames": 0
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-      "utterance_id": "4297-13009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13009.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 59185
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-87276.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007831.json b/conversations/conv_007831.json
deleted file mode 100644
index 84c74940df14c1ee70f4778d50d15169313c8a19..0000000000000000000000000000000000000000
--- a/conversations/conv_007831.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
-      "real_speaker_id": "2960",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-136523.flac |",
-      "real_speaker_id": "1266",
-      "position_frames": 68856
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2960-155151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155151.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8044-84206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84206.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8044/cough/0004.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007836.json b/conversations/conv_007836.json
deleted file mode 100644
index 6590bd412318eeb011dd97b87f2940d5f70a96eb..0000000000000000000000000000000000000000
--- a/conversations/conv_007836.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.26630732739334,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "948-132710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132710.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.235830004148944,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.280080529713935,
-      "end_time": 22.782366790664163,
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-      "overlap": false,
-      "utterance_id": "948-132705",
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-      "real_speaker_id": "948",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.97882284146986,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
-      "position_frames": 75193
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 57751,
-      "overlap": true,
-      "utterance_id": "948-132705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132705.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 88036
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_4.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_007841.json b/conversations/conv_007841.json
deleted file mode 100644
index 6805c94aaaf84290701b91ec3064bda73e3ff5ad..0000000000000000000000000000000000000000
--- a/conversations/conv_007841.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7892-294520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7892-294520.flac |",
-      "real_speaker_id": "7892",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.470313629520405,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154671.flac |",
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-      "real_speaker_id": "7892",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154697.flac |",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2427/laugh/0017.wav",
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-      "speaker_id": "7892"
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\ No newline at end of file
diff --git a/conversations/conv_007857.json b/conversations/conv_007857.json
deleted file mode 100644
index ecf074fc1e621a667e6d683ef59169aa6eccf23f..0000000000000000000000000000000000000000
--- a/conversations/conv_007857.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1674-142298.flac |",
-      "real_speaker_id": "1674",
-      "position_frames": 0
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-      "start_time": 5.404574967297591,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113331.flac |",
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-      "utterance_id": "3650-168637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168637.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 16.405691847508507,
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-      "utterance_id": "1674-142277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1674-142277.flac |",
-      "real_speaker_id": "1674",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113330.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168636.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
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-      "start_time": 0,
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\ No newline at end of file
diff --git a/conversations/conv_007860.json b/conversations/conv_007860.json
deleted file mode 100644
index 0be793809dd269b3f7ea1bb1d644b1303eb775d8..0000000000000000000000000000000000000000
--- a/conversations/conv_007860.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.518402250809086,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
-      "real_speaker_id": "5913",
-      "position_frames": 106131
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
-      "real_speaker_id": "4699",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "5913",
-      "position_frames": 213642
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-  "foreground_events": [
-    {
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-      "event_class": "Blender",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007861.json b/conversations/conv_007861.json
deleted file mode 100644
index 3f534483a20e1d69d4d280249b67f6533a7df5ab..0000000000000000000000000000000000000000
--- a/conversations/conv_007861.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8897-294724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8897-294724.flac |",
-      "real_speaker_id": "8897",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-55927.flac |",
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-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5935-43322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-43322.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.783092432279055,
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-      "real_speaker_id": "8897",
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "4667-102196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "speaker_id": "4667"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007866.json b/conversations/conv_007866.json
deleted file mode 100644
index 06c94a3f555941e4938e4663194a6dcfda6392b9..0000000000000000000000000000000000000000
--- a/conversations/conv_007866.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3513-163607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-163607.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.021458239284604,
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-      "utterance_id": "8012-273154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51163.flac |",
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_007870.json b/conversations/conv_007870.json
deleted file mode 100644
index e3719cee8697db4c5b5f827c57c1ae601b7fd2e3..0000000000000000000000000000000000000000
--- a/conversations/conv_007870.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.449394661632663,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-24633.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 4.980175199676643,
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-      "position_frames": 54233
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 232456
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_007877.json b/conversations/conv_007877.json
deleted file mode 100644
index 16f24e0fd03b2e52119f9289ce69e8537f76e101..0000000000000000000000000000000000000000
--- a/conversations/conv_007877.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 87491,
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-      "utterance_id": "6147-34605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34605.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "6288-63111",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_007882.json b/conversations/conv_007882.json
deleted file mode 100644
index 3666c3beded32805d4ae86d4dce9910d87a634fd..0000000000000000000000000000000000000000
--- a/conversations/conv_007882.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1746-143015.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1746-143015.flac |",
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-    {
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-    {
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-      "duration": 0.7965290809374781,
-      "start_time": 31.20347091906252,
-      "speaker_id": "296"
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-      "start_time": 30.35599364310322,
-      "speaker_id": "296"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007889.json b/conversations/conv_007889.json
deleted file mode 100644
index 7548ec9da05f01a6d2f9e9e462ea364be4c53d6b..0000000000000000000000000000000000000000
--- a/conversations/conv_007889.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "duration": 6.9363014750461085,
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-      "overlap": false,
-      "utterance_id": "3054-128244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 8.04775383199991,
-      "end_time": 14.387688718057529,
-      "duration": 6.339934886057621,
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-      "utterance_id": "2764-36617",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36617.flac |",
-      "real_speaker_id": "2764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 15.14904950715076,
-      "end_time": 21.144383384884534,
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-      "utterance_id": "5724-13364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.78845749715638,
-      "end_time": 27.781270390728952,
-      "duration": 5.992812893572573,
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-      "duration_frames": 95885,
-      "overlap": false,
-      "utterance_id": "3054-128245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128245.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 28.311251933791066,
-      "end_time": 32.0,
-      "duration": 3.688748066208934,
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-      "utterance_id": "2764-36616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36616.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007894.json b/conversations/conv_007894.json
deleted file mode 100644
index 038f6aa4ac85d3e1badf4486c061e1b97fd509f0..0000000000000000000000000000000000000000
--- a/conversations/conv_007894.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1800-142858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 90863
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.42703861745945,
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-      "utterance_id": "6818-76332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.942930046638423,
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-      "duration_frames": 85233,
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-      "utterance_id": "5246-30101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-30101.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.038284831931996,
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-      "duration": 0.9617151680680038,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007898.json b/conversations/conv_007898.json
deleted file mode 100644
index 40a60808983dccf92a627edf25121a21e7f8d5f9..0000000000000000000000000000000000000000
--- a/conversations/conv_007898.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1690-142293",
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\ No newline at end of file
diff --git a/conversations/conv_007904.json b/conversations/conv_007904.json
deleted file mode 100644
index 7c455bcc2f70d9153a32a38fc8cf43e03bd14c67..0000000000000000000000000000000000000000
--- a/conversations/conv_007904.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "duration": 0.6799134565462575,
-      "start_time": 27.11662828749972,
-      "speaker_id": "1264"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007908.json b/conversations/conv_007908.json
deleted file mode 100644
index 2a6a55bc6c4ebba29b9f68e4a83194ed0616fa7b..0000000000000000000000000000000000000000
--- a/conversations/conv_007908.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.426160341335819,
-      "duration": 4.426160341335819,
-      "start_frame": 0,
-      "duration_frames": 70818,
-      "overlap": false,
-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.249830262379138,
-      "end_time": 10.370636009598364,
-      "duration": 5.120805747219225,
-      "start_frame": 83997,
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-      "overlap": false,
-      "utterance_id": "7837-109174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109174.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.863209961385403,
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-      "duration": 4.584215449203483,
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-      "duration_frames": 73347,
-      "overlap": false,
-      "utterance_id": "4710-17347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-17347.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.441535571166693,
-      "end_time": 19.222999912424196,
-      "duration": 3.7814643412575046,
-      "start_frame": 247064,
-      "duration_frames": 60503,
-      "overlap": true,
-      "utterance_id": "4710-24606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-24606.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.63468149571757,
-      "end_time": 23.150773994898948,
-      "duration": 3.516092499181381,
-      "start_frame": 314154,
-      "duration_frames": 56257,
-      "overlap": false,
-      "utterance_id": "7837-109174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109174.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 81932
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.748320058188206,
-      "end_time": 29.785928938500433,
-      "duration": 6.037608880312227,
-      "start_frame": 379973,
-      "duration_frames": 96601,
-      "overlap": false,
-      "utterance_id": "4710-964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-964.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.113518021611245,
-      "end_time": 32.0,
-      "duration": 1.8864819783887548,
-      "start_frame": 481816,
-      "duration_frames": 30183,
-      "overlap": false,
-      "utterance_id": "7837-109173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.9663811803069353,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 4.492479059063092,
-      "speaker_id": "1723"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7837/laugh/0003.wav",
-      "duration": 0.7024384746819754,
-      "start_time": 18.711230655335985,
-      "speaker_id": "7837"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7837/laugh/0084.wav",
-      "duration": 1.4532327276040313,
-      "start_time": 28.60847989492234,
-      "speaker_id": "7837"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007909.json b/conversations/conv_007909.json
deleted file mode 100644
index 53fce25078362261da22252366f18307bb5a710c..0000000000000000000000000000000000000000
--- a/conversations/conv_007909.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.669945899341895,
-      "duration": 6.669945899341895,
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-      "overlap": false,
-      "utterance_id": "8088-284756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8088-284756.flac |",
-      "real_speaker_id": "8088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.7003767950744475,
-      "end_time": 12.838645067705757,
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-      "duration_frames": 98212,
-      "overlap": true,
-      "utterance_id": "25-123319",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-123319.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.341298203175654,
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-      "duration_frames": 80848,
-      "overlap": false,
-      "utterance_id": "8088-284756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8088-284756.flac |",
-      "real_speaker_id": "8088",
-      "position_frames": 106719
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.946379102937936,
-      "end_time": 26.150038344271785,
-      "duration": 6.203659241333847,
-      "start_frame": 319142,
-      "duration_frames": 99258,
-      "overlap": false,
-      "utterance_id": "25-123319",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-123319.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 98212
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.316187120967292,
-      "end_time": 32.0,
-      "duration": 4.683812879032708,
-      "start_frame": 437058,
-      "duration_frames": 74941,
-      "overlap": false,
-      "utterance_id": "2010-147045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-147045.flac |",
-      "real_speaker_id": "2010",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
-      "duration": 1.601156464983887,
-      "start_time": 17.08084989521529
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_4.wav",
-      "duration": 1.0053968253968253,
-      "start_time": 13.321193511285568
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8088/laugh/0076.wav",
-      "duration": 0.97779634148799,
-      "start_time": 0,
-      "speaker_id": "8088"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/25/laugh/0112.wav",
-      "duration": 1.48,
-      "start_time": 18.297715736017086,
-      "speaker_id": "25"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/25/cough/0103.wav",
-      "duration": 0.9358265219057949,
-      "start_time": 23.302750726786684,
-      "speaker_id": "25"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007912.json b/conversations/conv_007912.json
deleted file mode 100644
index 8a3c15986fceb3ec471cef3b6009a091a9eb6cd8..0000000000000000000000000000000000000000
--- a/conversations/conv_007912.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.459187617533828,
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-      "start_frame": 0,
-      "duration_frames": 71347,
-      "overlap": false,
-      "utterance_id": "5672-88367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88367.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.046035231369625,
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-      "duration_frames": 98219,
-      "overlap": true,
-      "utterance_id": "4926-23311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23311.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.24238928511241,
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-      "duration_frames": 77474,
-      "overlap": false,
-      "utterance_id": "1827-143625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.7748233383227,
-      "end_time": 21.237896918667953,
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-      "start_frame": 268397,
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-      "overlap": false,
-      "utterance_id": "5672-75791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-75791.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.409517482522183,
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-      "utterance_id": "4926-23311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23311.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 98219
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.601515411544035,
-      "end_time": 32.0,
-      "duration": 3.3984845884559647,
-      "start_frame": 457624,
-      "duration_frames": 54375,
-      "overlap": false,
-      "utterance_id": "1827-143625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 77474
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.56,
-      "start_time": 10.240047632083531,
-      "speaker_id": "4926"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1827/cough/0039.wav",
-      "duration": 1.12,
-      "start_time": 16.236228026865092,
-      "speaker_id": "1827"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4926/laugh/0105.wav",
-      "duration": 1.28,
-      "start_time": 27.510791480187745,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4926/cough/0101.wav",
-      "duration": 0.8894388368189712,
-      "start_time": 21.36533287715228,
-      "speaker_id": "4926"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007923.json b/conversations/conv_007923.json
deleted file mode 100644
index bf37b02743426dad0407aa8e0af6c39697ec12f1..0000000000000000000000000000000000000000
--- a/conversations/conv_007923.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.134702213327751,
-      "duration": 4.134702213327751,
-      "start_frame": 0,
-      "duration_frames": 66155,
-      "overlap": false,
-      "utterance_id": "1502-122619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122619.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.480046481442997,
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-      "utterance_id": "5781-52134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52134.flac |",
-      "real_speaker_id": "5781",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1502-122619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122619.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 66155
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "4108",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
-    {
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
-      "duration": 0.16310657596371883,
-      "start_time": 17.170956849721833
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1502/cough/0093.wav",
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-      "start_time": 4.333318593837794,
-      "speaker_id": "1502"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1502/laugh/0046.wav",
-      "duration": 0.7815890618446655,
-      "start_time": 11.498001547170198,
-      "speaker_id": "1502"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5781/laugh/0063.wav",
-      "duration": 1.12,
-      "start_time": 28.935700737677088,
-      "speaker_id": "5781"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007924.json b/conversations/conv_007924.json
deleted file mode 100644
index 115e5ec80c580eee3702ee5e1ed21af4e8fec82a..0000000000000000000000000000000000000000
--- a/conversations/conv_007924.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.682243586497753,
-      "duration": 5.682243586497753,
-      "start_frame": 0,
-      "duration_frames": 90915,
-      "overlap": false,
-      "utterance_id": "201-127786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.110034882952569,
-      "end_time": 12.954289410295202,
-      "duration": 6.844254527342633,
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-      "duration_frames": 109508,
-      "overlap": false,
-      "utterance_id": "6121-8686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6121-8686.flac |",
-      "real_speaker_id": "6121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.580953677797044,
-      "end_time": 18.45750909570335,
-      "duration": 4.8765554179063075,
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-      "duration_frames": 78024,
-      "overlap": false,
-      "utterance_id": "6127-14967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-14967.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.829704708899907,
-      "end_time": 21.936658117928367,
-      "duration": 3.1069534090284594,
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-      "duration_frames": 49711,
-      "overlap": false,
-      "utterance_id": "201-122255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-122255.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.645704480019397,
-      "end_time": 27.392352321261367,
-      "duration": 4.746647841241971,
-      "start_frame": 362331,
-      "duration_frames": 75946,
-      "overlap": false,
-      "utterance_id": "201-122255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-122255.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 49711
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.39004358741786,
-      "end_time": 32.0,
-      "duration": 3.6099564125821395,
-      "start_frame": 454240,
-      "duration_frames": 57759,
-      "overlap": false,
-      "utterance_id": "6127-2344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-2344.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 22.241629384181213,
-      "start_time": 6.887156927911599
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
-      "duration": 2.236575963718821,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/201/laugh/0087.wav",
-      "duration": 0.8716941429747398,
-      "start_time": 0,
-      "speaker_id": "201"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/cough/0120.wav",
-      "duration": 1.0190346017644165,
-      "start_time": 18.59595446497422,
-      "speaker_id": "6127"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/201/cough/0085.wav",
-      "duration": 0.6000702438393697,
-      "start_time": 27.47593353171334,
-      "speaker_id": "201"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/laugh/0098.wav",
-      "duration": 0.9883962008714348,
-      "start_time": 31.011603799128565,
-      "speaker_id": "6127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007925.json b/conversations/conv_007925.json
deleted file mode 100644
index 132ff94b57faf867c56f8facf757f7c42192e6dd..0000000000000000000000000000000000000000
--- a/conversations/conv_007925.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.0510032842276384,
-      "duration": 5.0510032842276384,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.482983966962911,
-      "end_time": 8.496608013496965,
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-      "overlap": true,
-      "utterance_id": "8619-291379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291379.flac |",
-      "real_speaker_id": "8619",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.825448333507367,
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-      "duration": 5.463292407747869,
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-      "duration_frames": 87412,
-      "overlap": false,
-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.311985928172582,
-      "end_time": 20.71007064003728,
-      "duration": 4.398084711864696,
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-      "duration_frames": 70369,
-      "overlap": false,
-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 80816
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.06326862594017,
-      "end_time": 26.282008946209395,
-      "duration": 5.218740320269225,
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-      "duration_frames": 83499,
-      "overlap": false,
-      "utterance_id": "8619-291379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291379.flac |",
-      "real_speaker_id": "8619",
-      "position_frames": 64217
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.48958287010869,
-      "end_time": 30.21596041596252,
-      "duration": 3.726377545853828,
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-      "duration_frames": 59622,
-      "overlap": false,
-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 87412
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.044058251916084,
-      "end_time": 32.0,
-      "duration": 0.9559417480839159,
-      "start_frame": 496704,
-      "duration_frames": 15295,
-      "overlap": false,
-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 151185
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
-      "start_time": 9.447869841120493
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
-      "duration": 0.6760544217687074,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/laugh/0015.wav",
-      "duration": 1.16,
-      "start_time": 1.62104178239549,
-      "speaker_id": "45"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/cough/0036.wav",
-      "duration": 0.7057759625699979,
-      "start_time": 0,
-      "speaker_id": "45"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/laugh/0025.wav",
-      "duration": 1.0,
-      "start_time": 15.289274035528464,
-      "speaker_id": "45"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/cough/0017.wav",
-      "duration": 0.6449985268554912,
-      "start_time": 15.518004767357716,
-      "speaker_id": "45"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7169/laugh/0054.wav",
-      "duration": 1.5,
-      "start_time": 24.974026891336894,
-      "speaker_id": "7169"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007928.json b/conversations/conv_007928.json
deleted file mode 100644
index f70a29de15c638f47d5510b7fbd23843037f7fd2..0000000000000000000000000000000000000000
--- a/conversations/conv_007928.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 4.301149251104881,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.445653362600213,
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-      "overlap": false,
-      "utterance_id": "7143-88749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88749.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.053993961274646,
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-      "duration_frames": 52146,
-      "overlap": true,
-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.355044243568917,
-      "end_time": 19.273683641868907,
-      "duration": 5.918639398299991,
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-      "duration_frames": 94698,
-      "overlap": false,
-      "utterance_id": "1594-135914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.01060205193047,
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-      "duration": 4.531485762843716,
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-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 52146
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.044731750181484,
-      "end_time": 28.87811635788107,
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-      "overlap": false,
-      "utterance_id": "7143-88743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88743.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.38825483019365,
-      "end_time": 32.0,
-      "duration": 2.611745169806351,
-      "start_frame": 470212,
-      "duration_frames": 41787,
-      "overlap": false,
-      "utterance_id": "1594-135914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 94698
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7555/laugh/0005.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7555/laugh/0099.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7143/cough/0073.wav",
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-      "start_time": 23.654075393003865,
-      "speaker_id": "7143"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007932.json b/conversations/conv_007932.json
deleted file mode 100644
index 50af410b49d7a1788132a2f7901318d8086bb2ab..0000000000000000000000000000000000000000
--- a/conversations/conv_007932.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.05230390219693,
-      "duration": 5.05230390219693,
-      "start_frame": 0,
-      "duration_frames": 80836,
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-      "utterance_id": "489-75912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75912.flac |",
-      "real_speaker_id": "489",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.716874852729759,
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-      "utterance_id": "5890-72186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5890-72186.flac |",
-      "real_speaker_id": "5890",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55091.flac |",
-      "real_speaker_id": "5733",
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-      "speaker_id": 0,
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-      "utterance_id": "5890-72186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5890-72186.flac |",
-      "real_speaker_id": "5890",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55091.flac |",
-      "real_speaker_id": "5733",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5890-72186.flac |",
-      "real_speaker_id": "5890",
-      "position_frames": 146229
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.634154192455007,
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-      "duration": 2.365845807544993,
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-      "utterance_id": "5733-55091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55091.flac |",
-      "real_speaker_id": "5733",
-      "position_frames": 127062
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "5890"
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-      "event_class": "cough",
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-      "duration": 0.8257774029535352,
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-      "speaker_id": "5733"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5890/laugh/0098.wav",
-      "duration": 1.24,
-      "start_time": 29.148744551879226,
-      "speaker_id": "5890"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007935.json b/conversations/conv_007935.json
deleted file mode 100644
index ea34306e11690618fb119227469cc44407ae8f1d..0000000000000000000000000000000000000000
--- a/conversations/conv_007935.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.643899085280953,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.2450070883337405,
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-      "overlap": false,
-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.894604392002522,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "6784-76150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76150.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.632095774127478,
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-      "duration_frames": 99384,
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-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 51920
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.548695531495884,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 151304
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.85180922986144,
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-      "duration_frames": 76673,
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-      "utterance_id": "6784-76150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76150.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 72919
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "713"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007945.json b/conversations/conv_007945.json
deleted file mode 100644
index 6328df1a78f9ecc21dc17b33cf02b24d45a5612c..0000000000000000000000000000000000000000
--- a/conversations/conv_007945.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6818-76332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "utterance_id": "6249-102849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-102849.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6818-68772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3109-144137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-144137.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 101769
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6249-102849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-102849.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 56134
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6818/laugh/0065.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007949.json b/conversations/conv_007949.json
deleted file mode 100644
index 0c91adc633ec1bd83fd6143ad8bcd07581132de7..0000000000000000000000000000000000000000
--- a/conversations/conv_007949.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.934660342814393,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": false,
-      "utterance_id": "909-131044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131044.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "909-131045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131045.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.59621702822937,
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-      "utterance_id": "909-131041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131041.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.61166853962486,
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-      "utterance_id": "4039-184266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 67632
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "start_time": 30.52,
-      "speaker_id": "4039"
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-}
\ No newline at end of file
diff --git a/conversations/conv_007953.json b/conversations/conv_007953.json
deleted file mode 100644
index d1f0e0e59b43d7ffbb179042e4370545be074b01..0000000000000000000000000000000000000000
--- a/conversations/conv_007953.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.075642393666918,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8778-246983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246983.flac |",
-      "real_speaker_id": "8778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.5430946822804525,
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-      "real_speaker_id": "8367",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "8778-246983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246983.flac |",
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-      "position_frames": 69449
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-    {
-      "segment_id": "seg0003",
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-}
\ No newline at end of file
diff --git a/conversations/conv_007962.json b/conversations/conv_007962.json
deleted file mode 100644
index a9a4a50c176264977cef98fad22a16f06a1f6ef8..0000000000000000000000000000000000000000
--- a/conversations/conv_007962.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
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-      "position_frames": 98164
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-165701.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_007965.json b/conversations/conv_007965.json
deleted file mode 100644
index 29ea11d272b475d8b88e841ef65bfbacabd7c8dd..0000000000000000000000000000000000000000
--- a/conversations/conv_007965.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_007969.json b/conversations/conv_007969.json
deleted file mode 100644
index 5bbf8f3ea689e5c41e5f820d6f635f182a52f39f..0000000000000000000000000000000000000000
--- a/conversations/conv_007969.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-178097.flac |",
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-      "real_speaker_id": "5703",
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-      "real_speaker_id": "3618",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8009-291933",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_007973.json b/conversations/conv_007973.json
deleted file mode 100644
index 223232956828dccd3d05da84defbf9f910cc967e..0000000000000000000000000000000000000000
--- a/conversations/conv_007973.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7463-99909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-99909.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "273",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7463-99912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-99912.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-99912.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 82615
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.391062363146467,
-      "end_time": 32.0,
-      "duration": 3.6089376368535326,
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-      "utterance_id": "479-107480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-107480.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/273/laugh/0137.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7463/laugh/0033.wav",
-      "duration": 0.6326735205680579,
-      "start_time": 23.240947918635353,
-      "speaker_id": "7463"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/479/laugh/0022.wav",
-      "duration": 1.62,
-      "start_time": 30.38,
-      "speaker_id": "479"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007974.json b/conversations/conv_007974.json
deleted file mode 100644
index 616e5e90ee1d4d3ab11ae3ae2ba3dd29d4a13d63..0000000000000000000000000000000000000000
--- a/conversations/conv_007974.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8808-283205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-283205.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.065804331550706,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4860.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 12.274864042827332,
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-      "overlap": false,
-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.541304507977173,
-      "end_time": 23.75956587616317,
-      "duration": 5.2182613681859955,
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-      "duration_frames": 83492,
-      "overlap": true,
-      "utterance_id": "5252-4868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4868.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.454517363457228,
-      "end_time": 27.827048589396316,
-      "duration": 3.3725312259390883,
-      "start_frame": 391272,
-      "duration_frames": 53960,
-      "overlap": false,
-      "utterance_id": "8808-295459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-295459.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.590744891630877,
-      "end_time": 32.0,
-      "duration": 3.4092551083691234,
-      "start_frame": 457451,
-      "duration_frames": 54548,
-      "overlap": false,
-      "utterance_id": "8808-283205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-283205.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 73144
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.7515029613900248,
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8808/cough/0068.wav",
-      "duration": 1.04,
-      "start_time": 4.759045467975068,
-      "speaker_id": "8808"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1987/laugh/0014.wav",
-      "duration": 0.5528310870147704,
-      "start_time": 17.795656730392857,
-      "speaker_id": "1987"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007986.json b/conversations/conv_007986.json
deleted file mode 100644
index 8ac696087dcc0cbb77ddb127d2b9b435c336e8d3..0000000000000000000000000000000000000000
--- a/conversations/conv_007986.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "5480-41798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41798.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.657285625314828,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41798.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 62120
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-      "segment_id": "seg0002",
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-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.699589155146914,
-      "end_time": 18.82753683773647,
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-      "overlap": false,
-      "utterance_id": "3521-175962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3521-175962.flac |",
-      "real_speaker_id": "3521",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.646702270607918,
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-      "utterance_id": "5480-41791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41791.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.25117353737403,
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-      "start_frame": 420018,
-      "duration_frames": 66037,
-      "overlap": false,
-      "utterance_id": "3521-7591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3521-7591.flac |",
-      "real_speaker_id": "3521",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.704726806592298,
-      "end_time": 32.0,
-      "duration": 1.2952731934077022,
-      "start_frame": 491275,
-      "duration_frames": 20724,
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-      "utterance_id": "5480-41798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41798.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 146888
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
-      "duration": 2.773015329756793,
-      "start_time": 16.092100427682755
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3521/laugh/0004.wav",
-      "duration": 1.28,
-      "start_time": 18.961648212205386,
-      "speaker_id": "3521"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5480/laugh/0055.wav",
-      "duration": 0.7743459864161055,
-      "start_time": 18.813558620904264,
-      "speaker_id": "5480"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_007990.json b/conversations/conv_007990.json
deleted file mode 100644
index 867c87a85ae95b3decd91697cca62b474f060a0b..0000000000000000000000000000000000000000
--- a/conversations/conv_007990.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.125,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.10189773283504,
-      "duration": 4.10189773283504,
-      "start_frame": 0,
-      "duration_frames": 65630,
-      "overlap": false,
-      "utterance_id": "8742-245707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245707.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "2671-157948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157948.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.02349243728709,
-      "end_time": 16.180195025685048,
-      "duration": 3.1567025883979594,
-      "start_frame": 208375,
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-      "overlap": false,
-      "utterance_id": "8742-245708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245708.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 16.52195009739102,
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-      "duration": 4.728501128575751,
-      "start_frame": 264351,
-      "duration_frames": 75656,
-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 53714
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 22.20736695358366,
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-      "duration_frames": 61825,
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-      "utterance_id": "2671-157946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157946.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 25.84087724960174,
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-      "duration_frames": 73561,
-      "overlap": true,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 129370
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 2,
-      "start_time": 31.363345186512294,
-      "end_time": 32.0,
-      "duration": 0.6366548134877057,
-      "start_frame": 501813,
-      "duration_frames": 10186,
-      "overlap": false,
-      "utterance_id": "2671-157946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157946.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 61825
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
-      "duration": 11.905612680568982,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
-      "duration": 0.2008390022675737,
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8742/laugh/0003.wav",
-      "duration": 1.16,
-      "start_time": 0.17290999169932647,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8742/cough/0003.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8742/cough/0034.wav",
-      "duration": 0.34011692140780814,
-      "start_time": 12.608504283699954,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/cough/0101.wav",
-      "duration": 0.6926906863939634,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/laugh/0039.wav",
-      "duration": 1.32,
-      "start_time": 24.23074055619567,
-      "speaker_id": "1001"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008002.json b/conversations/conv_008002.json
deleted file mode 100644
index 7fc4bd2bcf07629e4b01a20ab162964047a4d62d..0000000000000000000000000000000000000000
--- a/conversations/conv_008002.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.661400842808177,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5784-61949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61949.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 62756
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.1,
-      "start_time": 28.778492587985962,
-      "speaker_id": "5784"
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-      "event_class": "cough",
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-      "speaker_id": "5784"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008005.json b/conversations/conv_008005.json
deleted file mode 100644
index c18951a8347c7eab08142f915a79569aad437bfb..0000000000000000000000000000000000000000
--- a/conversations/conv_008005.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.253395219456727,
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-      "overlap": false,
-      "utterance_id": "177-123525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-123525.flac |",
-      "real_speaker_id": "177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.417832967833252,
-      "end_time": 12.045332582696503,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-123525.flac |",
-      "real_speaker_id": "177",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
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-      "real_speaker_id": "7135",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "7135-2346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7135-2346.flac |",
-      "real_speaker_id": "7135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.100876262958696,
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-      "duration": 0.8991237370413039,
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-      "utterance_id": "3221-138045",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008013.json b/conversations/conv_008013.json
deleted file mode 100644
index 77f4b60f19ad4f506b1d6dd81b74d2ec3d791205..0000000000000000000000000000000000000000
--- a/conversations/conv_008013.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "7239-63500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 57149
-    },
-    {
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-      "real_speaker_id": "3816",
-      "position_frames": 0
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 52341,
-      "overlap": true,
-      "utterance_id": "7239-63500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 129971
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7239/laugh/0009.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008014.json b/conversations/conv_008014.json
deleted file mode 100644
index 6a87b03948eb30c0671984f3e1bb1ac4afc269b8..0000000000000000000000000000000000000000
--- a/conversations/conv_008014.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4799-25949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-123202.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "4799"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/52/laugh/0001.wav",
-      "duration": 1.16,
-      "start_time": 13.781878956598892,
-      "speaker_id": "52"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8063/laugh/0001.wav",
-      "duration": 0.5768717444303658,
-      "start_time": 23.043917996258934,
-      "speaker_id": "8063"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/52/laugh/0015.wav",
-      "duration": 0.511472189672268,
-      "start_time": 27.817048343746396,
-      "speaker_id": "52"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008018.json b/conversations/conv_008018.json
deleted file mode 100644
index 0317d1e9898a7819037dd28e2c4769e34ebc6b7e..0000000000000000000000000000000000000000
--- a/conversations/conv_008018.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.073754738750388,
-      "duration": 4.073754738750388,
-      "start_frame": 0,
-      "duration_frames": 65180,
-      "overlap": false,
-      "utterance_id": "8356-240982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8356-240982.flac |",
-      "real_speaker_id": "8356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.576404481346936,
-      "end_time": 9.796117299510442,
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-      "duration_frames": 83515,
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-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.228578722852856,
-      "end_time": 16.4955545321057,
-      "duration": 6.2669758092528465,
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-      "duration_frames": 100271,
-      "overlap": false,
-      "utterance_id": "4710-24607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-24607.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.258246597645027,
-      "end_time": 23.80397135369924,
-      "duration": 6.545724756054213,
-      "start_frame": 276131,
-      "duration_frames": 104731,
-      "overlap": false,
-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.301536665411902,
-      "end_time": 28.939638394355775,
-      "duration": 4.638101728943872,
-      "start_frame": 388824,
-      "duration_frames": 74209,
-      "overlap": false,
-      "utterance_id": "8718-295445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295445.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.502853501109414,
-      "end_time": 32.0,
-      "duration": 2.4971464988905865,
-      "start_frame": 472045,
-      "duration_frames": 39954,
-      "overlap": false,
-      "utterance_id": "8356-284520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8356-284520.flac |",
-      "real_speaker_id": "8356",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
-      "duration": 14.907210884353741,
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
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-      "start_time": 10.03252460125748
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8718/laugh/0066.wav",
-      "duration": 0.96,
-      "start_time": 24.053397613513333,
-      "speaker_id": "8718"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8718/laugh/0029.wav",
-      "duration": 0.9878114775183748,
-      "start_time": 23.175163296931867,
-      "speaker_id": "8718"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8356/cough/0077.wav",
-      "duration": 1.08,
-      "start_time": 28.22321011494116,
-      "speaker_id": "8356"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008022.json b/conversations/conv_008022.json
deleted file mode 100644
index 0d548a6ead681c13c0ba59bdb4f7a26bc35f8273..0000000000000000000000000000000000000000
--- a/conversations/conv_008022.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.88304409642382,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.446482492973029,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2093-143271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143271.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.635413234292337,
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-      "duration": 5.609503281684894,
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-      "utterance_id": "7946-116281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-116281.flac |",
-      "real_speaker_id": "7946",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.027548330451799,
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-      "duration_frames": 97230,
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-      "utterance_id": "7946-111913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-111913.flac |",
-      "real_speaker_id": "7946",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.900713856486085,
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-      "duration": 5.710828570775167,
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-      "duration_frames": 91373,
-      "overlap": false,
-      "utterance_id": "2093-143262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143262.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.631119422714512,
-      "end_time": 30.88304409642382,
-      "duration": 6.251924673709308,
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-      "duration_frames": 100030,
-      "overlap": true,
-      "utterance_id": "7946-116281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-116281.flac |",
-      "real_speaker_id": "7946",
-      "position_frames": 89752
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 26.489341429778733,
-      "start_time": 3.3910549815328785
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_0.wav",
-      "duration": 1.8522935664163982,
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2093/cough/0113.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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-      "start_time": 5.2349511048988004,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2093/laugh/0061.wav",
-      "duration": 0.7201606105532032,
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-      "speaker_id": "2093"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7946/cough/0023.wav",
-      "duration": 1.01741261567493,
-      "start_time": 30.946407552215497,
-      "speaker_id": "7946"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008034.json b/conversations/conv_008034.json
deleted file mode 100644
index 765b36218dff71990413a3fc44058d03bb28e7eb..0000000000000000000000000000000000000000
--- a/conversations/conv_008034.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 94306,
-      "overlap": false,
-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.417941437130127,
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-      "utterance_id": "8444-281329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.29204316490675,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 109401
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.62062794009801,
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-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 94306
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.79740981670852,
-      "end_time": 29.683652710345623,
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-      "duration_frames": 78179,
-      "overlap": false,
-      "utterance_id": "8444-283136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-283136.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.6048226781489,
-      "end_time": 32.0,
-      "duration": 1.3951773218511008,
-      "start_frame": 489677,
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-      "overlap": false,
-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 159505
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-  "background_events": [
-    {
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8444/laugh/0010.wav",
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-      "speaker_id": "8444"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008038.json b/conversations/conv_008038.json
deleted file mode 100644
index 3ce8b1a11c917be283bca9e9c566b4fc9454b29d..0000000000000000000000000000000000000000
--- a/conversations/conv_008038.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.020794245487394,
-      "duration": 5.020794245487394,
-      "start_frame": 0,
-      "duration_frames": 80332,
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-      "utterance_id": "6548-39672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-39672.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.5338467294038205,
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-      "duration_frames": 72146,
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-      "utterance_id": "8180-274724",
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-      "real_speaker_id": "8180",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6548-39672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-39672.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 80332
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1849",
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-    {
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-      "utterance_id": "6548-39672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-39672.flac |",
-      "real_speaker_id": "6548",
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
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-      "speaker_id": "6548"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_008039.json b/conversations/conv_008039.json
deleted file mode 100644
index b9145e4de9c3ea54414ca432af0a7acdcd59de50..0000000000000000000000000000000000000000
--- a/conversations/conv_008039.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.971181587335628,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.480139631067335,
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-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 166292
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.116875415675636,
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-      "duration": 6.103530048419588,
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-      "overlap": false,
-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.76656081103065,
-      "end_time": 32.0,
-      "duration": 2.2334391889693492,
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-      "duration_frames": 35735,
-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 244240
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
-      "duration": 0.4961451247165533,
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-      "event_class": "Running_water",
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-      "start_time": 30.60528660583181,
-      "speaker_id": "960"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008043.json b/conversations/conv_008043.json
deleted file mode 100644
index 3efe32a067e19b540c4ea671cb5780e8d3ef3875..0000000000000000000000000000000000000000
--- a/conversations/conv_008043.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-32124.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 0
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-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 111141
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1296-138074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-138074.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.373512845984934,
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-      "duration": 5.218569177210286,
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-      "overlap": false,
-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 184112
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.17471156923993,
-      "end_time": 32.0,
-      "duration": 3.8252884307600716,
-      "start_frame": 450795,
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-      "utterance_id": "5641-32124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-32124.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 62917
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "duration": 1.4,
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-      "speaker_id": "5641"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008044.json b/conversations/conv_008044.json
deleted file mode 100644
index b13ca5868f8169b2dad3d61fafc2511ed21cac55..0000000000000000000000000000000000000000
--- a/conversations/conv_008044.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 30.76907369502579,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "utterance_id": "3675-185514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-185514.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-143240.flac |",
-      "real_speaker_id": "133",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.30981572151179,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-219.flac |",
-      "real_speaker_id": "89",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.876512893670732,
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-      "utterance_id": "3675-187020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-187020.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.84429411691625,
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-      "utterance_id": "89-219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-219.flac |",
-      "real_speaker_id": "89",
-      "position_frames": 67831
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "3675-185514",
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-      "real_speaker_id": "3675",
-      "position_frames": 65359
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-142924.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3675/cough/0126.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/133/laugh/0045.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "133"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/133/cough/0052.wav",
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-      "start_time": 27.67131688123444,
-      "speaker_id": "133"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008052.json b/conversations/conv_008052.json
deleted file mode 100644
index 6b1bd77fc76f2aaee7b74f9c0032ab2bce5bc6f2..0000000000000000000000000000000000000000
--- a/conversations/conv_008052.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124549.flac |",
-      "real_speaker_id": "512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3142",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124549.flac |",
-      "real_speaker_id": "512",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124520.flac |",
-      "real_speaker_id": "512",
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-      "segment_id": "seg0004",
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-      "start_time": 23.37290444994938,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.82492246133932,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
-      "real_speaker_id": "3142",
-      "position_frames": 80846
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-  "background_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "start_time": 30.995192722624253,
-      "speaker_id": "3142"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008055.json b/conversations/conv_008055.json
deleted file mode 100644
index e3a5affb48a8289855bae999bc6cf26b6f16eff0..0000000000000000000000000000000000000000
--- a/conversations/conv_008055.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4402-3066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3066.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.191181746432767,
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-      "utterance_id": "7314-93277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-93277.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 16.000923570261286,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91186.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 22.278889235258408,
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-      "utterance_id": "7447-91186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91186.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 87182
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.931756410152445,
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-      "utterance_id": "4402-3068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3068.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_008059.json b/conversations/conv_008059.json
deleted file mode 100644
index 8d570907b630bbbeac85d3d8313851da335e8194..0000000000000000000000000000000000000000
--- a/conversations/conv_008059.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135043.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122745.flac |",
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-      "utterance_id": "7170-281510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281510.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122774.flac |",
-      "real_speaker_id": "432",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.687983895066182,
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-      "utterance_id": "432-122761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122761.flac |",
-      "real_speaker_id": "432",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.23353000402362,
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-      "duration": 2.7664699959763794,
-      "start_frame": 467736,
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-      "overlap": false,
-      "utterance_id": "432-122745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122745.flac |",
-      "real_speaker_id": "432",
-      "position_frames": 55410
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "duration": 1.3,
-      "start_time": 6.011255555312425,
-      "speaker_id": "432"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/432/cough/0081.wav",
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-      "speaker_id": "432"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/432/cough/0018.wav",
-      "duration": 0.6382278192762098,
-      "start_time": 28.499715576040487,
-      "speaker_id": "432"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008063.json b/conversations/conv_008063.json
deleted file mode 100644
index 14cf84635c547db5857c2a255f8f27447d5f5147..0000000000000000000000000000000000000000
--- a/conversations/conv_008063.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7117-86732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86732.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "duration": 4.127033750218197,
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-      "duration_frames": 66032,
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-      "utterance_id": "2740-162051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.90949420375341,
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-      "utterance_id": "7117-86710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86710.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.02372431230127,
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-      "duration_frames": 65988,
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-      "utterance_id": "2090-151646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2090-151646.flac |",
-      "real_speaker_id": "2090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.225923309316887,
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-      "utterance_id": "2740-162051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 66032
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.047392004707426,
-      "end_time": 29.113737260596622,
-      "duration": 4.066345255889194,
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-      "overlap": false,
-      "utterance_id": "7117-86710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86710.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 74391
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.925287653513003,
-      "end_time": 32.0,
-      "duration": 2.074712346486997,
-      "start_frame": 478804,
-      "duration_frames": 33195,
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-      "utterance_id": "2740-288813",
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-      "real_speaker_id": "2740",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.3441492975000564,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7117/laugh/0006.wav",
-      "duration": 1.44,
-      "start_time": 3.535379722330651,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7117/laugh/0049.wav",
-      "duration": 1.0,
-      "start_time": 7.855718269872285,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2740/cough/0029.wav",
-      "duration": 0.3542868767903028,
-      "start_time": 31.645713123209696,
-      "speaker_id": "2740"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008075.json b/conversations/conv_008075.json
deleted file mode 100644
index 2eeee7a4f988cc31b78015234a058b8900268b85..0000000000000000000000000000000000000000
--- a/conversations/conv_008075.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
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\ No newline at end of file
diff --git a/conversations/conv_008079.json b/conversations/conv_008079.json
deleted file mode 100644
index 8b88b5c235f1fe796a564891de03850d0dc0770e..0000000000000000000000000000000000000000
--- a/conversations/conv_008079.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4014-186175.flac |",
-      "real_speaker_id": "4014",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125874.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-38026.flac |",
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-      "position_frames": 177616
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-  "foreground_events": [
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_008080.json b/conversations/conv_008080.json
deleted file mode 100644
index f01cd3f595f9e82821ab343cf5849f8a13a9ce2d..0000000000000000000000000000000000000000
--- a/conversations/conv_008080.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008081.json b/conversations/conv_008081.json
deleted file mode 100644
index 7ea53823402ff74467178f5a6308b6ea4e44930b..0000000000000000000000000000000000000000
--- a/conversations/conv_008081.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.52711311741683,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-      "real_speaker_id": "8747",
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-    {
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-      "real_speaker_id": "278",
-      "position_frames": 93415
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008091.json b/conversations/conv_008091.json
deleted file mode 100644
index 3d4c99a88543dd1345d5e3d8b83e26a1047962ba..0000000000000000000000000000000000000000
--- a/conversations/conv_008091.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6509-76574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6509-76574.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6111-59777.flac |",
-      "real_speaker_id": "6111",
-      "position_frames": 91657
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.82660651301763,
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-      "utterance_id": "6373-65772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 64781
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_6.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6373/laugh/0091.wav",
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-      "event_class": "cough",
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-      "speaker_id": "6373"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008096.json b/conversations/conv_008096.json
deleted file mode 100644
index 96708d4792663bc52c5f9f439a31bcc4c6590d62..0000000000000000000000000000000000000000
--- a/conversations/conv_008096.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4263-14180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4263-14180.flac |",
-      "real_speaker_id": "4263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.297865515423744,
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-      "overlap": false,
-      "utterance_id": "7859-102521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7859-102521.flac |",
-      "real_speaker_id": "7859",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.265869714257331,
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-      "overlap": false,
-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4263-14180.flac |",
-      "real_speaker_id": "4263",
-      "position_frames": 58532
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-      "real_speaker_id": "3082",
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-      "speaker_id": 0,
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-      "utterance_id": "4263-20411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4263-20411.flac |",
-      "real_speaker_id": "4263",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_008101.json b/conversations/conv_008101.json
deleted file mode 100644
index ad8bf8deed7af04c593906a15d14af83a455c144..0000000000000000000000000000000000000000
--- a/conversations/conv_008101.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 93738
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7837",
-      "position_frames": 59428
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "5038-34576",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-34576.flac |",
-      "real_speaker_id": "5038",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008106.json b/conversations/conv_008106.json
deleted file mode 100644
index 6aad727957b1788c48ea6d75f42b98d389bed083..0000000000000000000000000000000000000000
--- a/conversations/conv_008106.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "6324-64062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
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-      "start_time": 11.286392697884853,
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-      "overlap": true,
-      "utterance_id": "6324-64063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
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-      "position_frames": 97632
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1065-134593",
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-      "real_speaker_id": "1065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.30530372555358,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 83771
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6324/cough/0021.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008110.json b/conversations/conv_008110.json
deleted file mode 100644
index 1fbd4c35b85488e82211124ef8c5a269659a5092..0000000000000000000000000000000000000000
--- a/conversations/conv_008110.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.659205910201834,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "836-130900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-130900.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 5.805098446720425,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279764.flac |",
-      "real_speaker_id": "8242",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279764.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 93173
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_3.wav",
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-      "event_class": "Blender",
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-      "duration": 1.44,
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-      "event_class": "cough",
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-      "duration": 1.4,
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-      "speaker_id": "5456"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008117.json b/conversations/conv_008117.json
deleted file mode 100644
index aed57d28878e625bccbe12b277eb765c406e08b4..0000000000000000000000000000000000000000
--- a/conversations/conv_008117.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "353-128309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.847262626446431,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305209.flac |",
-      "real_speaker_id": "8846",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146849.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305209.flac |",
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-      "utterance_id": "1685-146847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146847.flac |",
-      "real_speaker_id": "1685",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 54894
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.62678830437866,
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-      "utterance_id": "1685-146845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146845.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 0
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008126.json b/conversations/conv_008126.json
deleted file mode 100644
index 3f4053d0a0449e5a215c73f81c0f0fde9534f620..0000000000000000000000000000000000000000
--- a/conversations/conv_008126.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12529.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12531.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.139756556007754,
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-      "utterance_id": "4137-11701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4137-11701.flac |",
-      "real_speaker_id": "4137",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.592444812739195,
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-      "duration_frames": 104802,
-      "overlap": false,
-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 65440
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.280005690125815,
-      "end_time": 31.72780464132152,
-      "duration": 4.447798951195705,
-      "start_frame": 436480,
-      "duration_frames": 71164,
-      "overlap": false,
-      "utterance_id": "3830-12529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12529.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 74774
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_1.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3830/laugh/0114.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4137/cough/0039.wav",
-      "duration": 1.076985652027386,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3830/laugh/0101.wav",
-      "duration": 0.8,
-      "start_time": 26.28980980119137,
-      "speaker_id": "3830"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008130.json b/conversations/conv_008130.json
deleted file mode 100644
index 085cee2c699fc05bac3ebc6a07aff1d6acff6dfc..0000000000000000000000000000000000000000
--- a/conversations/conv_008130.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.603727961859633,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 6.410584682897046,
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-      "overlap": false,
-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.96400683461182,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.875448035017452,
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-      "utterance_id": "2792-152929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 76807
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7892-295954",
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-      "real_speaker_id": "7892",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.62091482534521,
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-      "duration": 6.982813136514425,
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-      "utterance_id": "2792-152929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 147257
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Frying",
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-      "duration": 4.988864711557357,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "start_time": 11.81511505258794,
-      "speaker_id": "2792"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008140.json b/conversations/conv_008140.json
deleted file mode 100644
index e0742e9dbb1dfa967126be1ba175716ad1a7d264..0000000000000000000000000000000000000000
--- a/conversations/conv_008140.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.547897358944783,
-      "duration": 3.547897358944783,
-      "start_frame": 0,
-      "duration_frames": 56766,
-      "overlap": false,
-      "utterance_id": "1974-139742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139742.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.668824892929955,
-      "end_time": 9.354772146160986,
-      "duration": 4.685947253231031,
-      "start_frame": 74701,
-      "duration_frames": 74975,
-      "overlap": false,
-      "utterance_id": "1974-139741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139741.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.352113546562151,
-      "end_time": 14.572311749530794,
-      "duration": 4.220198202968643,
-      "start_frame": 165633,
-      "duration_frames": 67523,
-      "overlap": false,
-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.908217574901201,
-      "end_time": 19.408369433903985,
-      "duration": 4.500151859002785,
-      "start_frame": 238531,
-      "duration_frames": 72002,
-      "overlap": false,
-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.63433057490646,
-      "end_time": 26.455286511226642,
-      "duration": 5.820955936320181,
-      "start_frame": 330149,
-      "duration_frames": 93135,
-      "overlap": false,
-      "utterance_id": "1974-139741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139741.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 74975
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.123017260023587,
-      "end_time": 30.68494056678519,
-      "duration": 3.561923306761604,
-      "start_frame": 433968,
-      "duration_frames": 56990,
-      "overlap": false,
-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 67523
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.536900099067974,
-      "end_time": 32.0,
-      "duration": 0.4630999009320256,
-      "start_frame": 504590,
-      "duration_frames": 7409,
-      "overlap": false,
-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 124513
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.887090344159424,
-      "start_time": 15.621125222380945
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/713/cough/0047.wav",
-      "duration": 1.16,
-      "start_time": 9.11835903804505,
-      "speaker_id": "713"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008147.json b/conversations/conv_008147.json
deleted file mode 100644
index ae667ba13ccc90aa6d7f88363328ca1c7b994a7f..0000000000000000000000000000000000000000
--- a/conversations/conv_008147.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.347941521492503,
-      "duration": 6.347941521492503,
-      "start_frame": 0,
-      "duration_frames": 101567,
-      "overlap": false,
-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.408849970062152,
-      "end_time": 13.846900196685759,
-      "duration": 6.438050226623606,
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-      "duration_frames": 103008,
-      "overlap": false,
-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 101567
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.967041165616024,
-      "end_time": 19.014089236307996,
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-      "overlap": false,
-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.24442373790621,
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-      "duration": 4.498960246061403,
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-      "duration_frames": 71983,
-      "overlap": true,
-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 80752
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.487474930257875,
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-      "overlap": false,
-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 204575
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.682230088747673,
-      "end_time": 32.0,
-      "duration": 1.3177699112523271,
-      "start_frame": 490915,
-      "duration_frames": 21084,
-      "overlap": false,
-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 152735
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
-      "duration": 16.891051568145553,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_0.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2364/laugh/0082.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2364/laugh/0041.wav",
-      "duration": 0.9357238451507737,
-      "start_time": 18.204698780850322,
-      "speaker_id": "2364"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/454/laugh/0083.wav",
-      "duration": 0.5811423037499758,
-      "start_time": 23.76431035219006,
-      "speaker_id": "454"
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-    {
-      "event_class": "cough",
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-      "start_time": 23.40860263886159,
-      "speaker_id": "454"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2364/laugh/0083.wav",
-      "duration": 1.32,
-      "start_time": 29.18424648698112,
-      "speaker_id": "2364"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008151.json b/conversations/conv_008151.json
deleted file mode 100644
index a84de6f4f2576d0cd30990d88efc829df3b4fe86..0000000000000000000000000000000000000000
--- a/conversations/conv_008151.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.457885866092802,
-      "duration": 4.457885866092802,
-      "start_frame": 0,
-      "duration_frames": 71326,
-      "overlap": false,
-      "utterance_id": "1183-128659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-128659.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.07826929060372,
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-      "overlap": false,
-      "utterance_id": "1124-134775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-134775.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1183-128659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-128659.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 71326
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "1183-133255",
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-      "real_speaker_id": "1183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 47737,
-      "overlap": false,
-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 92266
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1183/laugh/0031.wav",
-      "duration": 1.12,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1124/laugh/0086.wav",
-      "duration": 0.8948026437803107,
-      "start_time": 31.10519735621969,
-      "speaker_id": "1124"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008156.json b/conversations/conv_008156.json
deleted file mode 100644
index 58804dd0e000735b88cd514538339f22c691709a..0000000000000000000000000000000000000000
--- a/conversations/conv_008156.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.03975385396101,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6828-68770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-53038.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5154-6174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-6174.flac |",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-      "duration": 1.6,
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-      "speaker_id": "6828"
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-      "event_class": "cough",
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-      "start_time": 17.16260538294485,
-      "speaker_id": "5154"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/cough/0016.wav",
-      "duration": 0.6340094301528116,
-      "start_time": 16.683681672657855,
-      "speaker_id": "6127"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/cough/0128.wav",
-      "duration": 0.7056808127816236,
-      "start_time": 27.349539801285854,
-      "speaker_id": "6127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008167.json b/conversations/conv_008167.json
deleted file mode 100644
index fa7800619b25d6e40dccfa93be17a980924a3e47..0000000000000000000000000000000000000000
--- a/conversations/conv_008167.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.14971898845242,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.768456733445373,
-      "duration": 4.768456733445373,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.168722663470933,
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-      "duration": 6.335085787638431,
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-      "utterance_id": "7702-292568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-292568.flac |",
-      "real_speaker_id": "7702",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.697680731250301,
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-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.753906198813223,
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-      "utterance_id": "7702-96101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-96101.flac |",
-      "real_speaker_id": "7702",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.56480547957559,
-      "end_time": 27.207042717486942,
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-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 76295
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 60065,
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-      "utterance_id": "7702-96101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-96101.flac |",
-      "real_speaker_id": "7702",
-      "position_frames": 90856
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
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-  "paralinguistic_events": [
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008171.json b/conversations/conv_008171.json
deleted file mode 100644
index b7d4d25379a186cdaadd0d06135175eb5d5bf8b9..0000000000000000000000000000000000000000
--- a/conversations/conv_008171.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
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-      "real_speaker_id": "294",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-116302.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 97402
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.869893582129997,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 111960
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "70-121130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121130.flac |",
-      "real_speaker_id": "70",
-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_008184.json b/conversations/conv_008184.json
deleted file mode 100644
index 4e8e23e0d2461b9e0e404e25b3e9f9b6d8cf09d3..0000000000000000000000000000000000000000
--- a/conversations/conv_008184.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.092084754678293,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148521.flac |",
-      "real_speaker_id": "2240",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7318-96168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
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-      "position_frames": 82941
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_008188.json b/conversations/conv_008188.json
deleted file mode 100644
index aa1128ad46387fadf449d20c2687db46322572b0..0000000000000000000000000000000000000000
--- a/conversations/conv_008188.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
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-    {
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-      "start_time": 19.173418306148026,
-      "speaker_id": "5147"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5147/laugh/0106.wav",
-      "duration": 0.92,
-      "start_time": 26.69308238389589,
-      "speaker_id": "5147"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5147/cough/0050.wav",
-      "duration": 0.3507737587098545,
-      "start_time": 31.649226241290144,
-      "speaker_id": "5147"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008192.json b/conversations/conv_008192.json
deleted file mode 100644
index b7cc1f076590aafb2bb8dd2641d467e6a8280528..0000000000000000000000000000000000000000
--- a/conversations/conv_008192.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.486258316613398,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.29858294356211,
-      "duration": 6.29858294356211,
-      "start_frame": 0,
-      "duration_frames": 100777,
-      "overlap": false,
-      "utterance_id": "5355-10766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-10766.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.451839376372218,
-      "end_time": 10.601151997670772,
-      "duration": 4.149312621298554,
-      "start_frame": 103229,
-      "duration_frames": 66389,
-      "overlap": false,
-      "utterance_id": "6848-252322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6848-252322.flac |",
-      "real_speaker_id": "6848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.775137590173054,
-      "end_time": 17.370408970945288,
-      "duration": 6.595271380772233,
-      "start_frame": 172402,
-      "duration_frames": 105524,
-      "overlap": false,
-      "utterance_id": "6807-106437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-106437.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.83880463503347,
-      "end_time": 24.402955157409316,
-      "duration": 6.564150522375849,
-      "start_frame": 285420,
-      "duration_frames": 105026,
-      "overlap": false,
-      "utterance_id": "5355-10766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-10766.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 100777
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.389966054277767,
-      "end_time": 31.486258316613398,
-      "duration": 6.09629226233563,
-      "start_frame": 406239,
-      "duration_frames": 97540,
-      "overlap": false,
-      "utterance_id": "6848-252322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6848-252322.flac |",
-      "real_speaker_id": "6848",
-      "position_frames": 66389
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
-      "duration": 4.837155087481602,
-      "start_time": 11.110661477242578
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_3.wav",
-      "duration": 1.0158503401360544,
-      "start_time": 1.6817661333398202
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5355/laugh/0087.wav",
-      "duration": 0.7263472138448821,
-      "start_time": 1.1664411707501199,
-      "speaker_id": "5355"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008202.json b/conversations/conv_008202.json
deleted file mode 100644
index ddd762f91d648dc8968d3d073c434417c435d187..0000000000000000000000000000000000000000
--- a/conversations/conv_008202.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.494321323663959,
-      "duration": 5.494321323663959,
-      "start_frame": 0,
-      "duration_frames": 87909,
-      "overlap": false,
-      "utterance_id": "7962-110061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.198891969557069,
-      "end_time": 10.443751929122481,
-      "duration": 4.244859959565411,
-      "start_frame": 99182,
-      "duration_frames": 67917,
-      "overlap": false,
-      "utterance_id": "1374-133833",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1374-133833.flac |",
-      "real_speaker_id": "1374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.408881739631497,
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-      "duration": 3.9770252822068155,
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-      "duration_frames": 63632,
-      "overlap": true,
-      "utterance_id": "7962-110061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 87909
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.422418605152476,
-      "end_time": 20.261165340050677,
-      "duration": 4.838746734898202,
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-      "duration_frames": 77419,
-      "overlap": false,
-      "utterance_id": "1374-133833",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1374-133833.flac |",
-      "real_speaker_id": "1374",
-      "position_frames": 67917
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.177629937671533,
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-      "duration": 3.8357623127555494,
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-      "duration_frames": 61372,
-      "overlap": false,
-      "utterance_id": "7962-110061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 151541
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.898134897497876,
-      "end_time": 29.11887963019293,
-      "duration": 3.220744732695051,
-      "start_frame": 414370,
-      "duration_frames": 51531,
-      "overlap": false,
-      "utterance_id": "6575-67592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.651574597900595,
-      "end_time": 32.0,
-      "duration": 2.348425402099405,
-      "start_frame": 474425,
-      "duration_frames": 37574,
-      "overlap": false,
-      "utterance_id": "7962-110061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 212913
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6575/laugh/0007.wav",
-      "duration": 1.3577728847111197,
-      "start_time": 24.26104425404993,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7962/laugh/0022.wav",
-      "duration": 0.6313124136602062,
-      "start_time": 30.324257538586238,
-      "speaker_id": "7962"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008203.json b/conversations/conv_008203.json
deleted file mode 100644
index d66a85a2f2a416c7cdd8aaf82c87a12d39040750..0000000000000000000000000000000000000000
--- a/conversations/conv_008203.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.084656125379002,
-      "duration": 5.084656125379002,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3137-163489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163489.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.840385503030317,
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-      "duration": 4.239328621850467,
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-      "duration_frames": 67829,
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-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "duration_frames": 85479,
-      "overlap": true,
-      "utterance_id": "3137-163504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163504.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.53510989956095,
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-      "duration": 6.985988033805699,
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-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 67829
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "8123-275216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275216.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.012857101437948,
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-      "duration": 1.9871428985620518,
-      "start_frame": 480205,
-      "duration_frames": 31794,
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-      "utterance_id": "8123-275216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275216.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 87375
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7218/cough/0009.wav",
-      "duration": 0.9926182420559331,
-      "start_time": 23.6476435591409,
-      "speaker_id": "7218"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008215.json b/conversations/conv_008215.json
deleted file mode 100644
index daacc0593af8ca944ba8d10e2eb40b476740a4a2..0000000000000000000000000000000000000000
--- a/conversations/conv_008215.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.2663120727442814,
-      "duration": 3.2663120727442814,
-      "start_frame": 0,
-      "duration_frames": 52260,
-      "overlap": false,
-      "utterance_id": "6743-72306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6743-72306.flac |",
-      "real_speaker_id": "6743",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.527467762551452,
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-      "utterance_id": "6713-56749",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.08840789939471,
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-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
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-    {
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 117508
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6713/cough/0014.wav",
-      "duration": 0.8163319208810922,
-      "start_time": 2.6302430412163917,
-      "speaker_id": "6713"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2346/laugh/0060.wav",
-      "duration": 1.2351629852885686,
-      "start_time": 12.670518010259306,
-      "speaker_id": "2346"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008219.json b/conversations/conv_008219.json
deleted file mode 100644
index 222da60b26ccd2e5827d6f71dfc214d752269b75..0000000000000000000000000000000000000000
--- a/conversations/conv_008219.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.488720374123061,
-      "duration": 5.488720374123061,
-      "start_frame": 0,
-      "duration_frames": 87819,
-      "overlap": false,
-      "utterance_id": "8666-293943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293943.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.397545758948062,
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-      "duration": 3.914048280639875,
-      "start_frame": 86360,
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-      "overlap": true,
-      "utterance_id": "1811-129443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1811-129443.flac |",
-      "real_speaker_id": "1811",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.048111477469128,
-      "end_time": 16.68309932845163,
-      "duration": 5.634987850982502,
-      "start_frame": 176769,
-      "duration_frames": 90159,
-      "overlap": false,
-      "utterance_id": "8666-293945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293945.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.424042000589534,
-      "end_time": 21.356551122013894,
-      "duration": 3.9325091214243613,
-      "start_frame": 278784,
-      "duration_frames": 62920,
-      "overlap": false,
-      "utterance_id": "8156-104485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8156-104485.flac |",
-      "real_speaker_id": "8156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.444124843415597,
-      "end_time": 25.50435301203265,
-      "duration": 4.0602281686170505,
-      "start_frame": 343105,
-      "duration_frames": 64963,
-      "overlap": true,
-      "utterance_id": "8666-293945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293945.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 90159
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.653287605761026,
-      "end_time": 32.0,
-      "duration": 5.346712394238974,
-      "start_frame": 426452,
-      "duration_frames": 85547,
-      "overlap": false,
-      "utterance_id": "1811-129443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1811-129443.flac |",
-      "real_speaker_id": "1811",
-      "position_frames": 62624
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
-      "duration": 0.7175510204081633,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
-      "duration": 0.27267573696145125,
-      "start_time": 3.229508073607908
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8666/laugh/0088.wav",
-      "duration": 1.4,
-      "start_time": 2.0135482554878386,
-      "speaker_id": "8666"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1811/laugh/0062.wav",
-      "duration": 0.78,
-      "start_time": 31.22,
-      "speaker_id": "1811"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008223.json b/conversations/conv_008223.json
deleted file mode 100644
index 3e858d97247613f11a800e1142f8d4f1ead071a3..0000000000000000000000000000000000000000
--- a/conversations/conv_008223.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.601413664869085,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.218999262569407,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.380546802643873,
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-      "overlap": false,
-      "utterance_id": "3330-172156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3330-172156.flac |",
-      "real_speaker_id": "3330",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.477839216979376,
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-      "overlap": false,
-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 83503
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.362972663215956,
-      "end_time": 24.699285925139876,
-      "duration": 5.336313261923921,
-      "start_frame": 309807,
-      "duration_frames": 85381,
-      "overlap": false,
-      "utterance_id": "2411-132530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132530.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.009064225909167,
-      "end_time": 31.601413664869085,
-      "duration": 6.592349438959916,
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-      "duration_frames": 105477,
-      "overlap": false,
-      "utterance_id": "3330-172156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3330-172156.flac |",
-      "real_speaker_id": "3330",
-      "position_frames": 94198
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5429/laugh/0066.wav",
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-      "start_time": 2.821454578353294,
-      "speaker_id": "5429"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2411/laugh/0061.wav",
-      "duration": 0.5421769820734015,
-      "start_time": 18.604651052031233,
-      "speaker_id": "2411"
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-    {
-      "event_class": "cough",
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-      "start_time": 25.571519104959147,
-      "speaker_id": "3330"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008228.json b/conversations/conv_008228.json
deleted file mode 100644
index 1fde8a66cc06e094ea754aff0cb2fc54c84f727a..0000000000000000000000000000000000000000
--- a/conversations/conv_008228.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5719-41217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-41217.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.2572682127653705,
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-      "utterance_id": "4246-12545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12545.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 86110,
-      "overlap": false,
-      "utterance_id": "32-21625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21625.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.515257392417727,
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-      "overlap": false,
-      "utterance_id": "4246-12544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12544.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233361.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.784113070125496,
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-      "duration": 4.215886929874504,
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-      "duration_frames": 67454,
-      "overlap": false,
-      "utterance_id": "32-4137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-4137.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/32/laugh/0020.wav",
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4246/cough/0071.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/32/laugh/0083.wav",
-      "duration": 1.0,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/32/cough/0083.wav",
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-      "start_time": 26.574692021958388,
-      "speaker_id": "32"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008235.json b/conversations/conv_008235.json
deleted file mode 100644
index db712b11533be630fdba3bb1b9e6e40f9155ef1d..0000000000000000000000000000000000000000
--- a/conversations/conv_008235.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.4186950464756887,
-      "duration": 3.4186950464756887,
-      "start_frame": 0,
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-      "utterance_id": "1544-140055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-140055.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.8346412017997067,
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-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "742-128034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "position_frames": 138751
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_1.wav",
-      "duration": 0.24006802721088435,
-      "start_time": 28.375638996745657
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/625/laugh/0028.wav",
-      "duration": 1.167596129496102,
-      "start_time": 8.171438738157402,
-      "speaker_id": "625"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/625/cough/0005.wav",
-      "duration": 1.0,
-      "start_time": 2.798833910927939,
-      "speaker_id": "625"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1544/laugh/0099.wav",
-      "duration": 0.7889162822965732,
-      "start_time": 19.831535093132334,
-      "speaker_id": "1544"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1544/cough/0074.wav",
-      "duration": 1.1579564181247022,
-      "start_time": 21.87674000378673,
-      "speaker_id": "1544"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008239.json b/conversations/conv_008239.json
deleted file mode 100644
index 6923db55a51ddee19bc3679ac3597c5126bff593..0000000000000000000000000000000000000000
--- a/conversations/conv_008239.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.019403833534715,
-      "duration": 5.019403833534715,
-      "start_frame": 0,
-      "duration_frames": 80310,
-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.271659086457485,
-      "end_time": 9.13718808285863,
-      "duration": 3.865528996401145,
-      "start_frame": 84346,
-      "duration_frames": 61848,
-      "overlap": false,
-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.924706354803941,
-      "end_time": 13.812698246020823,
-      "duration": 3.887991891216882,
-      "start_frame": 158795,
-      "duration_frames": 62207,
-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 80310
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.47081266077609,
-      "end_time": 19.48829050841696,
-      "duration": 5.017477847640871,
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-      "duration_frames": 80279,
-      "overlap": false,
-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 61848
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.877226123924096,
-      "end_time": 23.484677724929156,
-      "duration": 3.6074516010050584,
-      "start_frame": 318035,
-      "duration_frames": 57719,
-      "overlap": false,
-      "utterance_id": "6924-114452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-114452.flac |",
-      "real_speaker_id": "6924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.77730194936191,
-      "end_time": 30.05621471462343,
-      "duration": 6.278912765261518,
-      "start_frame": 380436,
-      "duration_frames": 100462,
-      "overlap": false,
-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 142127
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.79197620087154,
-      "end_time": 32.0,
-      "duration": 1.2080237991284584,
-      "start_frame": 492671,
-      "duration_frames": 19328,
-      "overlap": false,
-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 242589
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
-      "start_time": 1.252955671330873
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 1.1094081663439224,
-      "start_time": 4.425683592101182
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7957/laugh/0094.wav",
-      "duration": 0.9475638172542038,
-      "start_time": 5.045046352295515,
-      "speaker_id": "7957"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7957/laugh/0009.wav",
-      "duration": 0.5525381354153198,
-      "start_time": 9.199845561673868,
-      "speaker_id": "7957"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7957/cough/0046.wav",
-      "duration": 0.96,
-      "start_time": 8.940018435755302,
-      "speaker_id": "7957"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1031/laugh/0078.wav",
-      "duration": 1.44,
-      "start_time": 16.841604601109086,
-      "speaker_id": "1031"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1031/laugh/0014.wav",
-      "duration": 1.615997060975497,
-      "start_time": 30.3840029390245,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1031/cough/0056.wav",
-      "duration": 1.424174065017547,
-      "start_time": 29.26998167529406,
-      "speaker_id": "1031"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008242.json b/conversations/conv_008242.json
deleted file mode 100644
index 3cc4866e867bb73f10b99955f4fb466eaa9821a7..0000000000000000000000000000000000000000
--- a/conversations/conv_008242.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.693287190296108,
-      "duration": 4.693287190296108,
-      "start_frame": 0,
-      "duration_frames": 75092,
-      "overlap": false,
-      "utterance_id": "6754-107484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107484.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.89868419943935,
-      "end_time": 11.697690499915169,
-      "duration": 6.79900630047582,
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-      "duration_frames": 108784,
-      "overlap": false,
-      "utterance_id": "6754-107482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107482.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.288259490535022,
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-      "duration": 5.489505127006441,
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-      "duration_frames": 87832,
-      "overlap": true,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.890690346266364,
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-      "duration": 6.0485867000541695,
-      "start_frame": 302251,
-      "duration_frames": 96777,
-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 87832
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.15236919733482,
-      "end_time": 30.384126306050657,
-      "duration": 5.231757108715837,
-      "start_frame": 402437,
-      "duration_frames": 83708,
-      "overlap": false,
-      "utterance_id": "6754-107484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107484.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 75092
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.952267496123127,
-      "end_time": 32.0,
-      "duration": 1.0477325038768726,
-      "start_frame": 495236,
-      "duration_frames": 16763,
-      "overlap": false,
-      "utterance_id": "7926-254949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254949.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
-      "duration": 0.2651700680272109,
-      "start_time": 25.37361783614852
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6754/cough/0153.wav",
-      "duration": 0.36170303563991624,
-      "start_time": 4.8227152818755155,
-      "speaker_id": "6754"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6754/laugh/0001.wav",
-      "duration": 1.1946833667715782,
-      "start_time": 9.18978352987514,
-      "speaker_id": "6754"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2100/laugh/0031.wav",
-      "duration": 0.9874037513707773,
-      "start_time": 15.485516860740258,
-      "speaker_id": "2100"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7926/laugh/0068.wav",
-      "duration": 0.7711901400918542,
-      "start_time": 31.228809859908147,
-      "speaker_id": "7926"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008254.json b/conversations/conv_008254.json
deleted file mode 100644
index ccbf5f34aa0006be452c7994a15989daafccc7bf..0000000000000000000000000000000000000000
--- a/conversations/conv_008254.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.591212844974129,
-      "duration": 6.591212844974129,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5911-48574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-48574.flac |",
-      "real_speaker_id": "5911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.256883301912549,
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-      "start_frame": 116110,
-      "duration_frames": 62393,
-      "overlap": false,
-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.54096407195052,
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-      "duration": 5.58810399970068,
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-      "duration_frames": 89409,
-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.70727068506487,
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-      "utterance_id": "5911-52164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-52164.flac |",
-      "real_speaker_id": "5911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.642655546986163,
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-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 62393
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.32492986705163,
-      "end_time": 32.0,
-      "duration": 0.6750701329483704,
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-      "duration_frames": 10801,
-      "overlap": false,
-      "utterance_id": "5911-48574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-48574.flac |",
-      "real_speaker_id": "5911",
-      "position_frames": 105459
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "start_time": 6.913584608672742
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_1.wav",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4513/laugh/0012.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8975/laugh/0037.wav",
-      "duration": 1.04,
-      "start_time": 10.307532949094432,
-      "speaker_id": "8975"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5911/laugh/0039.wav",
-      "duration": 1.312904360528978,
-      "start_time": 19.52066335786629,
-      "speaker_id": "5911"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4513/laugh/0036.wav",
-      "duration": 1.5662420668288755,
-      "start_time": 29.865706121033966,
-      "speaker_id": "4513"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5911/cough/0039.wav",
-      "duration": 0.4015880852140203,
-      "start_time": 30.723894949722172,
-      "speaker_id": "5911"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008255.json b/conversations/conv_008255.json
deleted file mode 100644
index ea05f5eb3287dd7aae299e2dc895a139137007e7..0000000000000000000000000000000000000000
--- a/conversations/conv_008255.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.1841791998126796,
-      "duration": 3.1841791998126796,
-      "start_frame": 0,
-      "duration_frames": 50946,
-      "overlap": false,
-      "utterance_id": "4238-12538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12538.flac |",
-      "real_speaker_id": "4238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.239598702637234,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12538.flac |",
-      "real_speaker_id": "4238",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-37999.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.519319580403817,
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-      "utterance_id": "5189-56574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-56574.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 84659
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "start_time": 3.194399803476221,
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-      "event_class": "laugh",
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-      "duration": 0.9049758661124014,
-      "start_time": 3.0979640838611116,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8677/laugh/0026.wav",
-      "duration": 1.24,
-      "start_time": 15.848279952565388,
-      "speaker_id": "8677"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008258.json b/conversations/conv_008258.json
deleted file mode 100644
index 582caa068446fe6d452410f0f61726cd7dfca2b2..0000000000000000000000000000000000000000
--- a/conversations/conv_008258.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.816560781418854,
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-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 0
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-      "utterance_id": "606-127691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/606-127691.flac |",
-      "real_speaker_id": "606",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.493654100599425,
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-      "utterance_id": "606-121661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/606-121661.flac |",
-      "real_speaker_id": "606",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "real_speaker_id": "7383",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 70989
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_008262.json b/conversations/conv_008262.json
deleted file mode 100644
index f79327e93b596fe6944009f0658c6f1d70868f23..0000000000000000000000000000000000000000
--- a/conversations/conv_008262.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "159",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-135897.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-121902.flac |",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_008269.json b/conversations/conv_008269.json
deleted file mode 100644
index 5e10de9d7d30d5276ac91fb679d3669d8d6970ba..0000000000000000000000000000000000000000
--- a/conversations/conv_008269.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "3598",
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 82524
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.762372424475796,
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-      "utterance_id": "3598-180204",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8382-294774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_008274.json b/conversations/conv_008274.json
deleted file mode 100644
index 14589f45de6c352962b16036f99bcec5e3682e8e..0000000000000000000000000000000000000000
--- a/conversations/conv_008274.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "5985-63885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-63885.flac |",
-      "real_speaker_id": "5985",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-63885.flac |",
-      "real_speaker_id": "5985",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147979.flac |",
-      "real_speaker_id": "1926",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147979.flac |",
-      "real_speaker_id": "1926",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "1926"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008278.json b/conversations/conv_008278.json
deleted file mode 100644
index c4d0995e5e5a268cb2899ee8e494f26e0774dfe7..0000000000000000000000000000000000000000
--- a/conversations/conv_008278.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.522293282259206,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.37899119477148,
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-      "overlap": false,
-      "utterance_id": "4156-12155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.387457988237724,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139324.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.338210644759807,
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-      "utterance_id": "2185-150123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.630271860266184,
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-      "duration_frames": 95881,
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-      "utterance_id": "4156-12159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12159.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.987707120472084,
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-      "utterance_id": "1603-139325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139325.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4156/cough/0102.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008281.json b/conversations/conv_008281.json
deleted file mode 100644
index 87bb534f2798e046d99611fcd2276345bd88da1e..0000000000000000000000000000000000000000
--- a/conversations/conv_008281.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7754-108640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-108640.flac |",
-      "real_speaker_id": "7754",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-105383.flac |",
-      "real_speaker_id": "7754",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132644.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3289-171107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171107.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_008286.json b/conversations/conv_008286.json
deleted file mode 100644
index 50cd502beb9a00bac89d21bfb94dc65a2477098b..0000000000000000000000000000000000000000
--- a/conversations/conv_008286.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "584-124227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124227.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.649129957344361,
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-      "utterance_id": "3698-41990",
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-      "real_speaker_id": "3698",
-      "position_frames": 0
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-      "utterance_id": "584-132032",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.45048910779566,
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-      "duration_frames": 63812,
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-      "utterance_id": "3698-41990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-41990.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 72110
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "3698",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "3564-132498",
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-      "real_speaker_id": "3564",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_008290.json b/conversations/conv_008290.json
deleted file mode 100644
index 4af9da17381ced46bd0f3595cf6faf1061ff315b..0000000000000000000000000000000000000000
--- a/conversations/conv_008290.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "utterance_id": "7700-92919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92919.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.674689711176033,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6510-62558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62558.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "event_class": "Dishes",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008297.json b/conversations/conv_008297.json
deleted file mode 100644
index 1231e5989d4ab3502fddf89ca2fb9f6069d4cfb4..0000000000000000000000000000000000000000
--- a/conversations/conv_008297.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1474-128275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128275.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.238455575653164,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6553.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.857669854037502,
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-      "duration_frames": 88860,
-      "overlap": false,
-      "utterance_id": "2204-131732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
-      "real_speaker_id": "2204",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.913629829519117,
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-      "utterance_id": "1474-128275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128275.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 69991
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.4894158120891,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
-      "real_speaker_id": "2204",
-      "position_frames": 88860
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.465733557704112,
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-      "utterance_id": "1474-172821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-172821.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_008307.json b/conversations/conv_008307.json
deleted file mode 100644
index cc1d52bdc67f407d9810dd7deace244d45bf9959..0000000000000000000000000000000000000000
--- a/conversations/conv_008307.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152159.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2309",
-      "position_frames": 164987
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 3.2483808381022214,
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-      "utterance_id": "3990-31915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31915.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 102398
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008310.json b/conversations/conv_008310.json
deleted file mode 100644
index 1ba805110a5dd34a2255b2b8a84b24657a9dacef..0000000000000000000000000000000000000000
--- a/conversations/conv_008310.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.6666666666666666,
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-      "utterance_id": "4110-11533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11533.flac |",
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-      "real_speaker_id": "7342",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_008311.json b/conversations/conv_008311.json
deleted file mode 100644
index 78a5daa0ced794c40ed002d4d1c9c646b1d67139..0000000000000000000000000000000000000000
--- a/conversations/conv_008311.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "348-128030",
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-      "real_speaker_id": "348",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132751.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-93308.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/348/laugh/0120.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/348/laugh/0016.wav",
-      "duration": 1.48,
-      "start_time": 28.738714382362815,
-      "speaker_id": "348"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008327.json b/conversations/conv_008327.json
deleted file mode 100644
index 4ae54fbef1442b82e44170bb180b46844382871b..0000000000000000000000000000000000000000
--- a/conversations/conv_008327.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 6.693884121966612,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-291945.flac |",
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-      "utterance_id": "5653-46266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46266.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 18.121876911245963,
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-      "duration_frames": 99212,
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-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.21388128348812,
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-      "overlap": false,
-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 96237
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.491580378838574,
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-      "duration": 1.5084196211614262,
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-      "utterance_id": "4738-291957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-291957.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "5653"
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\ No newline at end of file
diff --git a/conversations/conv_008331.json b/conversations/conv_008331.json
deleted file mode 100644
index 7f20b9cbaa804852dc7b8aa376736a7593024c93..0000000000000000000000000000000000000000
--- a/conversations/conv_008331.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131256.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
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-      "utterance_id": "3060-163499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163499.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.861258650378105,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131256.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 53570
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.31861720267146,
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-      "duration_frames": 74902,
-      "overlap": false,
-      "utterance_id": "596-139612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-139612.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "596"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008346.json b/conversations/conv_008346.json
deleted file mode 100644
index 8a3395c4ef479a3e72d1d15c03f157b81a510ded..0000000000000000000000000000000000000000
--- a/conversations/conv_008346.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "307-127539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127539.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1776-142744.flac |",
-      "real_speaker_id": "1776",
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-      "utterance_id": "307-127540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127540.flac |",
-      "real_speaker_id": "307",
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-    {
-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2573-186232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-186232.flac |",
-      "real_speaker_id": "2573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "307",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "position_frames": 0
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_008347.json b/conversations/conv_008347.json
deleted file mode 100644
index 39c56cbf4e563abe90eb3cfa8a8518707b881259..0000000000000000000000000000000000000000
--- a/conversations/conv_008347.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8666-293945",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 77676
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "duration": 1.7321388361881702,
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 135069
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_8.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2096/laugh/0008.wav",
-      "duration": 0.7057021570808619,
-      "start_time": 4.092440912265574,
-      "speaker_id": "2096"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8666/laugh/0088.wav",
-      "duration": 0.7682636955728079,
-      "start_time": 3.2707863063477394,
-      "speaker_id": "8666"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2096/laugh/0039.wav",
-      "duration": 1.6,
-      "start_time": 21.519229671104533,
-      "speaker_id": "2096"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/781/laugh/0053.wav",
-      "duration": 1.28,
-      "start_time": 28.846601370955838,
-      "speaker_id": "781"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008350.json b/conversations/conv_008350.json
deleted file mode 100644
index 54d316b9e27d7e8876510e8a1fb3c97d5d3e6e80..0000000000000000000000000000000000000000
--- a/conversations/conv_008350.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.090742442494705,
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-      "overlap": false,
-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.48426547666604,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 0
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-      "start_time": 9.334294604631026,
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-      "overlap": false,
-      "utterance_id": "2792-144136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 65451
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 62821
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "duration": 1.2,
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-      "speaker_id": "2792"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008366.json b/conversations/conv_008366.json
deleted file mode 100644
index 27c590244e1f0ee8b50cc80fedc3bc9227f5a3b8..0000000000000000000000000000000000000000
--- a/conversations/conv_008366.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "2673-162129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-162129.flac |",
-      "real_speaker_id": "2673",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.772911598782772,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-156474.flac |",
-      "real_speaker_id": "2673",
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-      "real_speaker_id": "6232",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
-      "position_frames": 170546
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-162130.flac |",
-      "real_speaker_id": "2673",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.698671454928046,
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-      "duration": 0.3013285450719536,
-      "start_frame": 507178,
-      "duration_frames": 4821,
-      "overlap": false,
-      "utterance_id": "6232-36628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2673/laugh/0066.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
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-      "speaker_id": "6232"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008370.json b/conversations/conv_008370.json
deleted file mode 100644
index d684d4f237a53dc47c94bcd37f468450adcf8ab0..0000000000000000000000000000000000000000
--- a/conversations/conv_008370.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "7691-293948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-293948.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1649-5776.flac |",
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-      "segment_id": "seg0002",
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-    {
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-      "segment_id": "seg0004",
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-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7691/cough/0121.wav",
-      "duration": 0.7926088281712818,
-      "start_time": 0,
-      "speaker_id": "7691"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8015/laugh/0057.wav",
-      "duration": 0.8386250368775594,
-      "start_time": 21.013053544384245,
-      "speaker_id": "8015"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008382.json b/conversations/conv_008382.json
deleted file mode 100644
index ca68db69539ac5dc4170eefe9842ea008dd90c0d..0000000000000000000000000000000000000000
--- a/conversations/conv_008382.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.3569436101128156,
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-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.862385780327205,
-      "end_time": 9.426872560686022,
-      "duration": 5.564486780358816,
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-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 53711
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.709777147677885,
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-      "overlap": false,
-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.98592685662971,
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-      "duration": 4.596521489691999,
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-      "utterance_id": "2764-36619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36619.flac |",
-      "real_speaker_id": "2764",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.422261882655555,
-      "end_time": 22.812342733463034,
-      "duration": 3.390080850807477,
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-      "duration_frames": 54241,
-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 142742
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.803643314762247,
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-      "duration": 3.879147019271517,
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-      "duration_frames": 62066,
-      "overlap": false,
-      "utterance_id": "2764-36619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36619.flac |",
-      "real_speaker_id": "2764",
-      "position_frames": 73544
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.455856832705088,
-      "end_time": 32.0,
-      "duration": 3.544143167294912,
-      "start_frame": 455293,
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-      "overlap": false,
-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 63985
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.9447845804988662,
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4044/laugh/0074.wav",
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-      "start_time": 9.574757797154566,
-      "speaker_id": "4044"
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-    {
-      "event_class": "cough",
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-      "start_time": 2.6270164348038927,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4044/cough/0085.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "2764"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008385.json b/conversations/conv_008385.json
deleted file mode 100644
index 7502ccf5e55702a50784d0fc0389efc1ff6bb2e4..0000000000000000000000000000000000000000
--- a/conversations/conv_008385.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4447-14912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14912.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "7059-77900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77900.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "4447-14912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14912.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 102456
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.49275180218179,
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-      "duration": 3.3172284163198613,
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-      "overlap": false,
-      "utterance_id": "7059-77897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77897.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.25090434143313,
-      "end_time": 26.85664746648135,
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-      "overlap": false,
-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.223234549546582,
-      "end_time": 32.0,
-      "duration": 4.776765450453418,
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-      "duration_frames": 76428,
-      "overlap": false,
-      "utterance_id": "4447-14919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4447/cough/0107.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "4447"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4447/laugh/0026.wav",
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-      "start_time": 16.368435831951906,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2051/laugh/0024.wav",
-      "duration": 0.7191580358559833,
-      "start_time": 26.994810164554735,
-      "speaker_id": "2051"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008389.json b/conversations/conv_008389.json
deleted file mode 100644
index 3aeb440203ecc827ee09f172a157dac4593ea731..0000000000000000000000000000000000000000
--- a/conversations/conv_008389.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.896253436378615,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 107881
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.171851893753207,
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-      "overlap": true,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 203505
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
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-    {
-      "event_class": "Frying",
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-      "duration": 1.8814210319341842,
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/laugh/0090.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008393.json b/conversations/conv_008393.json
deleted file mode 100644
index d90c57cdc14ca89582ca881502ba68550e90408e..0000000000000000000000000000000000000000
--- a/conversations/conv_008393.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.537531924777512,
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-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.966048883951267,
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-      "real_speaker_id": "6418",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "6418-39654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39654.flac |",
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-    {
-      "segment_id": "seg0003",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6418/laugh/0023.wav",
-      "duration": 1.0600645106181643,
-      "start_time": 17.263199661502433,
-      "speaker_id": "6418"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/899/cough/0106.wav",
-      "duration": 0.9746138254524899,
-      "start_time": 31.02538617454751,
-      "speaker_id": "899"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008394.json b/conversations/conv_008394.json
deleted file mode 100644
index 91b4c675ddcbe38ce75e96152bf3682028c1ec23..0000000000000000000000000000000000000000
--- a/conversations/conv_008394.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.555554604203877,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.168602445254963,
-      "duration": 6.168602445254963,
-      "start_frame": 0,
-      "duration_frames": 98697,
-      "overlap": false,
-      "utterance_id": "4152-12926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.970946331732721,
-      "end_time": 12.95386325752898,
-      "duration": 5.9829169257962596,
-      "start_frame": 111535,
-      "duration_frames": 95726,
-      "overlap": true,
-      "utterance_id": "4152-5710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-5710.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.188158128936664,
-      "end_time": 20.689861615603476,
-      "duration": 6.5017034866668135,
-      "start_frame": 227010,
-      "duration_frames": 104027,
-      "overlap": false,
-      "utterance_id": "6594-68896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68896.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.27085184334021,
-      "end_time": 26.969627988828535,
-      "duration": 5.698776145488326,
-      "start_frame": 340333,
-      "duration_frames": 91180,
-      "overlap": false,
-      "utterance_id": "3657-19115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-19115.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.857367121849165,
-      "end_time": 30.555554604203877,
-      "duration": 3.6981874823547125,
-      "start_frame": 429717,
-      "duration_frames": 59170,
-      "overlap": true,
-      "utterance_id": "6594-68897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68897.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
-      "duration": 11.70517658982947,
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
-      "duration": 0.6165759637188208,
-      "start_time": 9.099272467473613
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4152/cough/0019.wav",
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-      "start_time": 13.123879865950094,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6594/laugh/0092.wav",
-      "duration": 0.5844550966729802,
-      "start_time": 17.218974788168527,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6594/cough/0047.wav",
-      "duration": 0.9102110552529215,
-      "start_time": 20.884577160533023,
-      "speaker_id": "6594"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008402.json b/conversations/conv_008402.json
deleted file mode 100644
index 1aa8a7517951ce33d5c3ca601570862a35169d00..0000000000000000000000000000000000000000
--- a/conversations/conv_008402.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.484344858230872,
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-      "start_frame": 0,
-      "duration_frames": 71749,
-      "overlap": false,
-      "utterance_id": "3927-6556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6556.flac |",
-      "real_speaker_id": "3927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.191184869684648,
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-      "utterance_id": "1472-285314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1472-285314.flac |",
-      "real_speaker_id": "1472",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1342-133247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133247.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1472-139797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1472-139797.flac |",
-      "real_speaker_id": "1472",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.03772399076837,
-      "end_time": 25.43279921935837,
-      "duration": 3.3950752285899988,
-      "start_frame": 352603,
-      "duration_frames": 54321,
-      "overlap": false,
-      "utterance_id": "3927-6557",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6557.flac |",
-      "real_speaker_id": "3927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.450775262561123,
-      "end_time": 32.0,
-      "duration": 5.549224737438877,
-      "start_frame": 423212,
-      "duration_frames": 88787,
-      "overlap": false,
-      "utterance_id": "3927-6557",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6557.flac |",
-      "real_speaker_id": "3927",
-      "position_frames": 54321
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3927/laugh/0114.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "3927"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008405.json b/conversations/conv_008405.json
deleted file mode 100644
index bc6cdcd2b12291c80f2fd1fd00b8eb8c3f6ba90b..0000000000000000000000000000000000000000
--- a/conversations/conv_008405.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4313-9936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-9936.flac |",
-      "real_speaker_id": "4313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.5756504173922368,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8050-110238.flac |",
-      "real_speaker_id": "8050",
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-      "utterance_id": "4313-16007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-16007.flac |",
-      "real_speaker_id": "4313",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8050-110238",
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-      "real_speaker_id": "8050",
-      "position_frames": 78968
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "4313",
-      "position_frames": 52080
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8050-110238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8050-110238.flac |",
-      "real_speaker_id": "8050",
-      "position_frames": 164295
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.614753289811897,
-      "end_time": 32.0,
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-      "position_frames": 0
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_008409.json b/conversations/conv_008409.json
deleted file mode 100644
index 41584291c93c2313184f7afa5f5609291ff6e653..0000000000000000000000000000000000000000
--- a/conversations/conv_008409.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.88697051017335,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "921-127933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127933.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "954-130627",
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-      "real_speaker_id": "954",
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-    {
-      "segment_id": "seg0002",
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-    {
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-    {
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/921/laugh/0016.wav",
-      "duration": 0.9813886639707367,
-      "start_time": 30.970187497900188,
-      "speaker_id": "921"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008413.json b/conversations/conv_008413.json
deleted file mode 100644
index a3036eaffac8fdf664c2e2df988aaa73c9aee0e4..0000000000000000000000000000000000000000
--- a/conversations/conv_008413.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.114082575414733,
-      "duration": 5.114082575414733,
-      "start_frame": 0,
-      "duration_frames": 81825,
-      "overlap": false,
-      "utterance_id": "7030-64588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.044227264948929,
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-      "duration": 3.0673792499662005,
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-      "duration_frames": 49078,
-      "overlap": false,
-      "utterance_id": "1261-136350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-136350.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.578637335866212,
-      "end_time": 14.478317763691436,
-      "duration": 4.899680427825225,
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-      "duration_frames": 78394,
-      "overlap": false,
-      "utterance_id": "441-128982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128982.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.866289127319103,
-      "end_time": 20.403052272966864,
-      "duration": 5.536763145647762,
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-      "overlap": false,
-      "utterance_id": "1261-131411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-131411.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.77944095382093,
-      "end_time": 26.381042867520243,
-      "duration": 5.601601913699313,
-      "start_frame": 332471,
-      "duration_frames": 89625,
-      "overlap": false,
-      "utterance_id": "441-128988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128988.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.492174993111558,
-      "end_time": 32.0,
-      "duration": 5.507825006888442,
-      "start_frame": 423874,
-      "duration_frames": 88125,
-      "overlap": false,
-      "utterance_id": "1261-127742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-127742.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 7.469445980531187
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.6313979089466462,
-      "start_time": 0,
-      "speaker_id": "7030"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/441/laugh/0050.wav",
-      "duration": 1.4,
-      "start_time": 26.500167219917,
-      "speaker_id": "441"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1261/laugh/0045.wav",
-      "duration": 0.6961685367776199,
-      "start_time": 25.664798262829553,
-      "speaker_id": "1261"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008414.json b/conversations/conv_008414.json
deleted file mode 100644
index 0e149b29ca1da27dcddf68172b8e9b4bd8a606e0..0000000000000000000000000000000000000000
--- a/conversations/conv_008414.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8374706040111954,
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-      "utterance_id": "7762-280917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.436195459142292,
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-      "utterance_id": "884-129800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "7762-280917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 61399
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-    {
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-      "speaker_id": 0,
-      "start_time": 15.516604510935972,
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-      "overlap": false,
-      "utterance_id": "884-129800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 54723
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.37960244835942,
-      "end_time": 24.58548429061449,
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-      "utterance_id": "7762-280917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 171469
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 121338
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.910013667707627,
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-      "duration": 1.0899863322923729,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 238763
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7762/laugh/0031.wav",
-      "duration": 1.52,
-      "start_time": 12.33752980264807,
-      "speaker_id": "7762"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008425.json b/conversations/conv_008425.json
deleted file mode 100644
index 000dcdf393e73d612c694af493c998872eb58149..0000000000000000000000000000000000000000
--- a/conversations/conv_008425.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.273796533454195,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4218-41146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41146.flac |",
-      "real_speaker_id": "4218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.038609924620652,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41146.flac |",
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-      "overlap": true,
-      "utterance_id": "8012-273137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273137.flac |",
-      "real_speaker_id": "8012",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "1690-142293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4218-41159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41159.flac |",
-      "real_speaker_id": "4218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "8012-273154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008429.json b/conversations/conv_008429.json
deleted file mode 100644
index cfdd6bbdabd305b90c87809caf9123832bf6aa45..0000000000000000000000000000000000000000
--- a/conversations/conv_008429.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1750-142369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-142369.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1750-135624",
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-      "segment_id": "seg0003",
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-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.44,
-      "start_time": 24.879816306441196,
-      "speaker_id": "1750"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008433.json b/conversations/conv_008433.json
deleted file mode 100644
index 507935a6337dcbe180b63d919e1c26b86abff22c..0000000000000000000000000000000000000000
--- a/conversations/conv_008433.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.744563807747483,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.5367680738862015,
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-      "overlap": false,
-      "utterance_id": "2230-148550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-148550.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.12453912883633,
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-      "position_frames": 0
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-      "start_time": 10.049729693149773,
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-      "utterance_id": "2230-124587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-124587.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.077908552010133,
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-      "utterance_id": "8071-114972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-114972.flac |",
-      "real_speaker_id": "8071",
-      "position_frames": 70147
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.700284466477374,
-      "end_time": 28.16708388486923,
-      "duration": 5.466799418391853,
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-      "overlap": false,
-      "utterance_id": "192-128345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128345.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.611891727727876,
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-      "duration": 3.1326720800196064,
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-      "utterance_id": "192-123167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-123167.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-      "speaker_id": "192"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008443.json b/conversations/conv_008443.json
deleted file mode 100644
index e5d2c2972d0b4af5df0d96e75a49d8fe50b8cb0d..0000000000000000000000000000000000000000
--- a/conversations/conv_008443.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.108024510297298,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129064.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 0
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-      "utterance_id": "1463-134465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 130074
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "380-129064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129064.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 67256
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.785733276177027,
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-      "utterance_id": "1463-134463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134463.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008444.json b/conversations/conv_008444.json
deleted file mode 100644
index d656df5abe31db3bc0e5f7cbb380b31b6fbb8e8b..0000000000000000000000000000000000000000
--- a/conversations/conv_008444.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4487-1799.flac |",
-      "real_speaker_id": "4487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "2989-138035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138035.flac |",
-      "real_speaker_id": "2989",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 199472
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-    {
-      "segment_id": "seg0005",
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-      "end_time": 32.0,
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-      "utterance_id": "2989-138028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138028.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "4545"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008448.json b/conversations/conv_008448.json
deleted file mode 100644
index b232fe35164c7c724af081dca2c1a41d6e473683..0000000000000000000000000000000000000000
--- a/conversations/conv_008448.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.59200696096632,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253270.flac |",
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-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "5132",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "5132"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008452.json b/conversations/conv_008452.json
deleted file mode 100644
index 48af09d4e74ee7544a0910b77022528343f7ddd4..0000000000000000000000000000000000000000
--- a/conversations/conv_008452.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 0
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-      "utterance_id": "3289-171108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171108.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 56631
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 88272
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.23002374659514,
-      "end_time": 27.5450826287857,
-      "duration": 6.315058882190561,
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-      "utterance_id": "1498-140040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140040.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.021907973088027,
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-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 180176
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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\ No newline at end of file
diff --git a/conversations/conv_008455.json b/conversations/conv_008455.json
deleted file mode 100644
index c20c5f228457d1c75e2f155f390156bbbfb65a05..0000000000000000000000000000000000000000
--- a/conversations/conv_008455.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-111963.flac |",
-      "real_speaker_id": "6436",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "6436",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160949.flac |",
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-      "utterance_id": "6436-104980",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-104980.flac |",
-      "real_speaker_id": "6436",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 27.848269254625922,
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-      "utterance_id": "1851-148962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008464.json b/conversations/conv_008464.json
deleted file mode 100644
index 1d7a44c5c1464acd642c92aafa66cf7be3571adf..0000000000000000000000000000000000000000
--- a/conversations/conv_008464.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.0269140878683,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6882-79969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-79969.flac |",
-      "real_speaker_id": "6882",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58012.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58012.flac |",
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-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_008468.json b/conversations/conv_008468.json
deleted file mode 100644
index 772e302a25f4538c03a75c684cc5a30de73cf23a..0000000000000000000000000000000000000000
--- a/conversations/conv_008468.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 88016
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2998-160955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2998-160955.flac |",
-      "real_speaker_id": "2998",
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-      "start_time": 14.875577611366946
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3914/laugh/0075.wav",
-      "duration": 0.9068430801829291,
-      "start_time": 28.076362133584187,
-      "speaker_id": "3914"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008472.json b/conversations/conv_008472.json
deleted file mode 100644
index eb2a28f268be8fb307a02fc21ea27ab28b39a8b0..0000000000000000000000000000000000000000
--- a/conversations/conv_008472.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1664-122623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.938525978300092,
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-      "duration_frames": 57294,
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-      "utterance_id": "5825-53035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-53035.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 0
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.504596551402175,
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-      "utterance_id": "1097-136955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136955.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.85570060461014,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136955.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 95507
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-      "segment_id": "seg0005",
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-      "start_time": 26.827716647196564,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 70350
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.19136311489779,
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-      "utterance_id": "1097-136912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136912.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_008487.json b/conversations/conv_008487.json
deleted file mode 100644
index 789b6d9ed8901f2509f31866f19a95fc75c3f69e..0000000000000000000000000000000000000000
--- a/conversations/conv_008487.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-134717.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-126480.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_008491.json b/conversations/conv_008491.json
deleted file mode 100644
index ea69b8848dc503af2184eb27bf0e799546f9513d..0000000000000000000000000000000000000000
--- a/conversations/conv_008491.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281514.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5778",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-12761.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_008501.json b/conversations/conv_008501.json
deleted file mode 100644
index c8ab5d2b3b92d15cddbada2827c77fb251293407..0000000000000000000000000000000000000000
--- a/conversations/conv_008501.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5796",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6945/cough/0096.wav",
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-      "speaker_id": "6945"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7892/laugh/0040.wav",
-      "duration": 0.5430125706417004,
-      "start_time": 24.63953321987048,
-      "speaker_id": "7892"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008506.json b/conversations/conv_008506.json
deleted file mode 100644
index d8ad21c034093a8ffda13c4ca31d6c2c0daa9be2..0000000000000000000000000000000000000000
--- a/conversations/conv_008506.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.5656691760436505,
-      "duration": 4.5656691760436505,
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-      "overlap": false,
-      "utterance_id": "1066-103481",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-103481.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.723309154056308,
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-      "utterance_id": "8605-291172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-291172.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.17666488413419,
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-      "utterance_id": "8605-291172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-291172.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 110280
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.76354814846618,
-      "end_time": 22.212962612334422,
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-      "duration_frames": 71190,
-      "overlap": false,
-      "utterance_id": "1066-103481",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-103481.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 73050
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.07438885544072,
-      "end_time": 27.363214669807746,
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-      "overlap": false,
-      "utterance_id": "8605-291172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-291172.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 184886
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.648705625508615,
-      "end_time": 32.0,
-      "duration": 3.351294374491385,
-      "start_frame": 458379,
-      "duration_frames": 53620,
-      "overlap": false,
-      "utterance_id": "1601-136862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136862.flac |",
-      "real_speaker_id": "1601",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 27.005950598290873,
-      "speaker_id": "1601"
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\ No newline at end of file
diff --git a/conversations/conv_008510.json b/conversations/conv_008510.json
deleted file mode 100644
index 24f2827c24f18bd26f6e00c1fe28d9de538226fe..0000000000000000000000000000000000000000
--- a/conversations/conv_008510.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.481938947077693,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-81524.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 65958
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130504.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.2719458982584,
-      "end_time": 27.730655058170733,
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-      "duration_frames": 55339,
-      "overlap": false,
-      "utterance_id": "2909-34664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-34664.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.63744404446762,
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-      "duration_frames": 37800,
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 161644
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1413/laugh/0098.wav",
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-      "speaker_id": "1413"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008517.json b/conversations/conv_008517.json
deleted file mode 100644
index d589e8549280e79ecb10b586e30fa878009b8cd3..0000000000000000000000000000000000000000
--- a/conversations/conv_008517.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4331-57179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-57179.flac |",
-      "real_speaker_id": "4331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.0067002456405545,
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-      "overlap": true,
-      "utterance_id": "202-129387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-129387.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-57179.flac |",
-      "real_speaker_id": "4331",
-      "position_frames": 65305
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "duration_frames": 66740,
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-      "utterance_id": "202-129387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-129387.flac |",
-      "real_speaker_id": "202",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3546-9321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-9321.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4331-57180",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008521.json b/conversations/conv_008521.json
deleted file mode 100644
index d39683cbe489cfc7f4c212096b360b0070f4a0df..0000000000000000000000000000000000000000
--- a/conversations/conv_008521.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.629440493911034,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.225033677642247,
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-      "utterance_id": "8394-96177",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220952.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-102849.flac |",
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008537.json b/conversations/conv_008537.json
deleted file mode 100644
index 8c5379dab6919b7b3b9e3adabac8039bb545d585..0000000000000000000000000000000000000000
--- a/conversations/conv_008537.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3235-28433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-28433.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.15488507468862,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-33397.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.57676193898186,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-33398.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4013-11734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-11734.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 94885
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.094717919792586,
-      "end_time": 32.0,
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-      "utterance_id": "3235-28452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-28452.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_008540.json b/conversations/conv_008540.json
deleted file mode 100644
index e03aa57c6188174f7baf5d5dfa7a6fd63eb570c6..0000000000000000000000000000000000000000
--- a/conversations/conv_008540.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
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-      "position_frames": 106868
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-    {
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-      "real_speaker_id": "6411",
-      "position_frames": 137720
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008547.json b/conversations/conv_008547.json
deleted file mode 100644
index 321aadbdc8d053bbc4326d7dbe1acd9864f713ce..0000000000000000000000000000000000000000
--- a/conversations/conv_008547.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_008551.json b/conversations/conv_008551.json
deleted file mode 100644
index 9a5120f1eb8c48090b349c740c5d758133303314..0000000000000000000000000000000000000000
--- a/conversations/conv_008551.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.424098213303814,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "982-133226",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/982-133226.flac |",
-      "real_speaker_id": "982",
-      "position_frames": 79954
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.124227990845386,
-      "end_time": 18.476013956618505,
-      "duration": 3.351785965773119,
-      "start_frame": 241987,
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-      "overlap": false,
-      "utterance_id": "1776-142744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1776-142744.flac |",
-      "real_speaker_id": "1776",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.304941530703143,
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-      "utterance_id": "982-133222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/982-133222.flac |",
-      "real_speaker_id": "982",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.6910909179406,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1776-142744.flac |",
-      "real_speaker_id": "1776",
-      "position_frames": 53628
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.525890390022592,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/982/laugh/0058.wav",
-      "duration": 1.0474944838733262,
-      "start_time": 0,
-      "speaker_id": "982"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_008556.json b/conversations/conv_008556.json
deleted file mode 100644
index ca4a73d7af06e1aba6933d8e9d511442fba6fd57..0000000000000000000000000000000000000000
--- a/conversations/conv_008556.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.962076927608295,
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-      "overlap": false,
-      "utterance_id": "1403-130575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-130575.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.386555861410105,
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-      "utterance_id": "4225-144132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.098700906103957,
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-      "overlap": false,
-      "utterance_id": "1403-138552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.792025449383857,
-      "end_time": 26.70031060870142,
-      "duration": 5.908285159317563,
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-      "duration_frames": 94532,
-      "overlap": false,
-      "utterance_id": "6209-34599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34599.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.856520646418474,
-      "end_time": 32.0,
-      "duration": 4.143479353581526,
-      "start_frame": 445704,
-      "duration_frames": 66295,
-      "overlap": false,
-      "utterance_id": "1403-138552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 107226
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_8.wav",
-      "duration": 0.5433333333333333,
-      "start_time": 10.362877865824384
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_2.wav",
-      "duration": 0.3128344671201814,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 0.48990747459694606,
-      "start_time": 0,
-      "speaker_id": "1403"
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-      "event_class": "laugh",
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-      "duration": 1.36,
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-      "event_class": "laugh",
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-      "duration": 1.3,
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-      "speaker_id": "1403"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008560.json b/conversations/conv_008560.json
deleted file mode 100644
index 07ef075f15dade27f61c01cdbb79a4ef924dc2c5..0000000000000000000000000000000000000000
--- a/conversations/conv_008560.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.639301918212674,
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-      "utterance_id": "4484-75922",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-75922.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "4484-34489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-34489.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.432831710774725,
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-      "overlap": true,
-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 84395
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.4798706651203,
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-      "duration": 6.058024399411992,
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-      "overlap": false,
-      "utterance_id": "2039-141209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.81789267967178,
-      "end_time": 32.0,
-      "duration": 2.182107320328221,
-      "start_frame": 477086,
-      "duration_frames": 34913,
-      "overlap": false,
-      "utterance_id": "2039-141209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 96928
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.4,
-      "start_time": 9.45376524038454,
-      "speaker_id": "4484"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 14.132934945195707,
-      "speaker_id": "5328"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2039/laugh/0131.wav",
-      "duration": 1.646425881277185,
-      "start_time": 28.587192205360218,
-      "speaker_id": "2039"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008576.json b/conversations/conv_008576.json
deleted file mode 100644
index 09d4e229b45a3ad6aa01d68153153a37f74293e9..0000000000000000000000000000000000000000
--- a/conversations/conv_008576.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.230792010290092,
-      "duration": 4.230792010290092,
-      "start_frame": 0,
-      "duration_frames": 67692,
-      "overlap": false,
-      "utterance_id": "2356-154880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154880.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.543167810701743,
-      "end_time": 9.583685892358643,
-      "duration": 5.0405180816569,
-      "start_frame": 72690,
-      "duration_frames": 80648,
-      "overlap": false,
-      "utterance_id": "4411-14501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14501.flac |",
-      "real_speaker_id": "4411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.683777553769971,
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-      "duration_frames": 98260,
-      "overlap": false,
-      "utterance_id": "2356-154880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154880.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 67692
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.32766434912388,
-      "end_time": 23.032225678723353,
-      "duration": 6.704561329599475,
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-      "duration_frames": 107272,
-      "overlap": false,
-      "utterance_id": "4411-14494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14494.flac |",
-      "real_speaker_id": "4411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2356-154907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.513484523211595,
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-      "utterance_id": "4411-14501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14501.flac |",
-      "real_speaker_id": "4411",
-      "position_frames": 80648
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.081029504508933,
-      "end_time": 32.0,
-      "duration": 0.9189704954910667,
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-      "duration_frames": 14703,
-      "overlap": false,
-      "utterance_id": "2356-154907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 60824
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.1275520997029607,
-      "start_time": 18.785290379375102
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2356/cough/0126.wav",
-      "duration": 0.6314419543398884,
-      "start_time": 0.010988086391860826,
-      "speaker_id": "2356"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4411/laugh/0053.wav",
-      "duration": 0.502387564855739,
-      "start_time": 26.864938293644045,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2356/laugh/0129.wav",
-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "2356"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008583.json b/conversations/conv_008583.json
deleted file mode 100644
index fb1409e56cc3aeac1ce146d2591c1a6cc8d787e3..0000000000000000000000000000000000000000
--- a/conversations/conv_008583.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.117778261959041,
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-      "start_frame": 0,
-      "duration_frames": 81884,
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-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.784102118160408,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 189052
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 177228
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "Dog",
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-      "start_time": 19.404535649029434,
-      "speaker_id": "3807"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008584.json b/conversations/conv_008584.json
deleted file mode 100644
index 95420db213c0d5f91f0b3bac42ffc0ca9d5641c4..0000000000000000000000000000000000000000
--- a/conversations/conv_008584.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.699740097296395,
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-      "start_frame": 0,
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-      "utterance_id": "4853-27671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-27671.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.395533610523944,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "4853-27670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-27670.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-136483.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.582653350427655,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-141613.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.03279081293054,
-      "end_time": 32.0,
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-      "utterance_id": "4853-29413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-29413.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4853/laugh/0062.wav",
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-      "speaker_id": "4853"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008594.json b/conversations/conv_008594.json
deleted file mode 100644
index c3f307b053db0bb0fbf1b57ea305d08267465700..0000000000000000000000000000000000000000
--- a/conversations/conv_008594.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.79377879508383,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163436.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134185.flac |",
-      "real_speaker_id": "466",
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-      "segment_id": "seg0002",
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-      "utterance_id": "466-134208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134208.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "6082-56175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56175.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6082-56175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56175.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 66584
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-    {
-      "event_class": "Frying",
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-      "duration": 4.974976037138104,
-      "start_time": 0.505311639615349
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/laugh/0093.wav",
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-      "start_time": 0,
-      "speaker_id": "2930"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/laugh/0126.wav",
-      "duration": 1.0717530382109541,
-      "start_time": 27.077261626720503,
-      "speaker_id": "2930"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6082/cough/0102.wav",
-      "duration": 1.0751302990345075,
-      "start_time": 26.28458751258094,
-      "speaker_id": "6082"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008595.json b/conversations/conv_008595.json
deleted file mode 100644
index 36b63762ebd0117fc3e0d3bf2ba24063aba59df9..0000000000000000000000000000000000000000
--- a/conversations/conv_008595.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.218878478411572,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.387278548422354,
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-      "start_frame": 0,
-      "duration_frames": 86196,
-      "overlap": false,
-      "utterance_id": "2411-132530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132530.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.554409556460473,
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-      "utterance_id": "8635-295756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295756.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.858947461595776,
-      "end_time": 19.343790179837036,
-      "duration": 5.484842718241259,
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-      "duration_frames": 87757,
-      "overlap": true,
-      "utterance_id": "5224-35439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35439.flac |",
-      "real_speaker_id": "5224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.8053824607165,
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-      "duration_frames": 83713,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295756.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 109411
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.29920388004848,
-      "end_time": 31.218878478411572,
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-      "duration_frames": 78714,
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-      "utterance_id": "5224-35439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35439.flac |",
-      "real_speaker_id": "5224",
-      "position_frames": 87757
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 12.538245835138985,
-      "speaker_id": "5224"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008599.json b/conversations/conv_008599.json
deleted file mode 100644
index 6cda479d0caaa424a3fe73a2f76a5d2feb682e36..0000000000000000000000000000000000000000
--- a/conversations/conv_008599.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.172321032241992,
-      "duration": 4.172321032241992,
-      "start_frame": 0,
-      "duration_frames": 66757,
-      "overlap": false,
-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.878993115929751,
-      "end_time": 9.390808092588316,
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-      "duration_frames": 72189,
-      "overlap": false,
-      "utterance_id": "5720-48807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5720-48807.flac |",
-      "real_speaker_id": "5720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 49128,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
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-      "real_speaker_id": "5720",
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-      "speaker_id": "8334"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008604.json b/conversations/conv_008604.json
deleted file mode 100644
index e51bd9f99a7bc7e322b03aa991c67a2fcb946d6b..0000000000000000000000000000000000000000
--- a/conversations/conv_008604.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 55207
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
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-      "position_frames": 80254
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4179-25937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4179-25937.flac |",
-      "real_speaker_id": "4179",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130532.flac |",
-      "real_speaker_id": "1383",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_008605.json b/conversations/conv_008605.json
deleted file mode 100644
index bfbd984e291c5a50be550297da5036ed067e2470..0000000000000000000000000000000000000000
--- a/conversations/conv_008605.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
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-      "real_speaker_id": "5583",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5583-38026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-38026.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 78259
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-      "event_class": "Blender",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008608.json b/conversations/conv_008608.json
deleted file mode 100644
index 6a6076773f61b52d6c3a059e5f18e030eb5f9a66..0000000000000000000000000000000000000000
--- a/conversations/conv_008608.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.195319679997016,
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-      "utterance_id": "4277-185519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185519.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
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-      "utterance_id": "5339-14133",
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-      "real_speaker_id": "5339",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 30.92,
-      "speaker_id": "2960"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008612.json b/conversations/conv_008612.json
deleted file mode 100644
index c28e196c1b71adcd89518e1b4c0726555fb4529f..0000000000000000000000000000000000000000
--- a/conversations/conv_008612.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.274290715886024,
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-      "utterance_id": "6385-220959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6385-220959.flac |",
-      "real_speaker_id": "6385",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 85927
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-    {
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-      "speaker_id": 1,
-      "start_time": 31.310701978750004,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6385-34655.flac |",
-      "real_speaker_id": "6385",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_008624.json b/conversations/conv_008624.json
deleted file mode 100644
index 16a712803880b4c27e615426454c9d9821ee6680..0000000000000000000000000000000000000000
--- a/conversations/conv_008624.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.77721865564392,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3723-171115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171115.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25378.flac |",
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-      "real_speaker_id": "3723",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29411.flac |",
-      "real_speaker_id": "5022",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008628.json b/conversations/conv_008628.json
deleted file mode 100644
index 9847f902787b4680cefe8efcea80e4e48ebd2d7a..0000000000000000000000000000000000000000
--- a/conversations/conv_008628.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8592-285135.flac |",
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-      "position_frames": 0
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-      "position_frames": 59345
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_008632.json b/conversations/conv_008632.json
deleted file mode 100644
index 0ee138d06951348c0949f8ed67435b9835642cff..0000000000000000000000000000000000000000
--- a/conversations/conv_008632.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279791.flac |",
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008639.json b/conversations/conv_008639.json
deleted file mode 100644
index e55305fd0af74465bb5b51fc72f16c60af782736..0000000000000000000000000000000000000000
--- a/conversations/conv_008639.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.602742126194351,
-      "duration": 5.602742126194351,
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-      "overlap": false,
-      "utterance_id": "5784-61948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61948.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.155099127280192,
-      "end_time": 10.58593248684167,
-      "duration": 4.43083335956148,
-      "start_frame": 98481,
-      "duration_frames": 70893,
-      "overlap": true,
-      "utterance_id": "56-1730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1730.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.99040644817092,
-      "end_time": 14.34624059347276,
-      "duration": 3.355834145301841,
-      "start_frame": 175846,
-      "duration_frames": 53693,
-      "overlap": false,
-      "utterance_id": "5784-36627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-36627.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.647220480810267,
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-      "duration": 4.709502882271092,
-      "start_frame": 250355,
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-      "overlap": false,
-      "utterance_id": "56-1732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1732.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.677085838979682,
-      "end_time": 25.71647160695718,
-      "duration": 5.0393857679775005,
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-      "duration_frames": 80630,
-      "overlap": false,
-      "utterance_id": "8112-281876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8112-281876.flac |",
-      "real_speaker_id": "8112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.007976058985463,
-      "end_time": 32.0,
-      "duration": 4.992023941014537,
-      "start_frame": 432127,
-      "duration_frames": 79872,
-      "overlap": false,
-      "utterance_id": "56-1732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1732.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 75352
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
-      "start_time": 5.720508393921118
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
-      "duration": 0.5341496598639456,
-      "start_time": 14.589866868412617
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
-      "duration": 0.27267573696145125,
-      "start_time": 28.514793220745883
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/56/laugh/0090.wav",
-      "duration": 0.8710442469306314,
-      "start_time": 7.840450134839846,
-      "speaker_id": "56"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/56/cough/0087.wav",
-      "duration": 1.2511397133823214,
-      "start_time": 4.7495116252745735,
-      "speaker_id": "56"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5784/laugh/0005.wav",
-      "duration": 1.52,
-      "start_time": 11.794018427500646,
-      "speaker_id": "5784"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5784/cough/0035.wav",
-      "duration": 0.3499584810642223,
-      "start_time": 14.521440061237548,
-      "speaker_id": "5784"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/56/laugh/0109.wav",
-      "duration": 1.36,
-      "start_time": 20.497489264834066,
-      "speaker_id": "56"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/56/cough/0086.wav",
-      "duration": 1.32,
-      "start_time": 20.551520290798457,
-      "speaker_id": "56"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008645.json b/conversations/conv_008645.json
deleted file mode 100644
index 95ba03f2fd1244031dbcebec99e04b7267c3c69f..0000000000000000000000000000000000000000
--- a/conversations/conv_008645.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.48313279101195,
-      "duration": 5.48313279101195,
-      "start_frame": 0,
-      "duration_frames": 87730,
-      "overlap": false,
-      "utterance_id": "6402-105212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105212.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.082163988338129,
-      "end_time": 11.292813340508001,
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-      "utterance_id": "3347-134420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3347-134420.flac |",
-      "real_speaker_id": "3347",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.074684491919328,
-      "end_time": 17.707554360088544,
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-      "overlap": false,
-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.212435183655032,
-      "end_time": 24.961830608731873,
-      "duration": 6.749395425076839,
-      "start_frame": 291398,
-      "duration_frames": 107990,
-      "overlap": false,
-      "utterance_id": "3347-134420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3347-134420.flac |",
-      "real_speaker_id": "3347",
-      "position_frames": 83370
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.379709810226053,
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-      "duration_frames": 76386,
-      "overlap": false,
-      "utterance_id": "6402-105213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105213.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.26092100011301,
-      "end_time": 32.0,
-      "duration": 1.7390789998869884,
-      "start_frame": 484174,
-      "duration_frames": 27825,
-      "overlap": false,
-      "utterance_id": "6402-105212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105212.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 87730
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
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-      "start_time": 6.929303354507774
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6402/laugh/0118.wav",
-      "duration": 0.6526876817516795,
-      "start_time": 2.688503719089474,
-      "speaker_id": "6402"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4964/laugh/0084.wav",
-      "duration": 0.8371418429309903,
-      "start_time": 11.103206150904871,
-      "speaker_id": "4964"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3347/laugh/0079.wav",
-      "duration": 1.2,
-      "start_time": 21.23999296036154,
-      "speaker_id": "3347"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6402/cough/0090.wav",
-      "duration": 0.3990996565018852,
-      "start_time": 24.90875952303179,
-      "speaker_id": "6402"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008649.json b/conversations/conv_008649.json
deleted file mode 100644
index 395910f79bab884f2feb9cd0609a29df5def8fc3..0000000000000000000000000000000000000000
--- a/conversations/conv_008649.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4576-66275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4576-66275.flac |",
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-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151982.flac |",
-      "real_speaker_id": "3196",
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-      "utterance_id": "3196-151981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.276901702392147,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.239519555032015,
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-      "utterance_id": "4576-66274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4576-66274.flac |",
-      "real_speaker_id": "4576",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.24538962266122,
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-      "duration": 3.7546103773387784,
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-      "duration_frames": 60073,
-      "overlap": false,
-      "utterance_id": "3196-151982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151982.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 71653
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4576/cough/0031.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 21.884242464685116,
-      "speaker_id": "5133"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4576/laugh/0075.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "3196"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008652.json b/conversations/conv_008652.json
deleted file mode 100644
index c1202064706c0048d683cb3ccf9dd6c8849f6020..0000000000000000000000000000000000000000
--- a/conversations/conv_008652.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1392-128240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-128240.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7883",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1392-140654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-140654.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7883-113275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113275.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 96716
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-      "utterance_id": "2021-235244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235244.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.65451559925342,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113274.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
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-      "start_time": 4.118547574061957,
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-      "event_class": "cough",
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-      "speaker_id": "1392"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008653.json b/conversations/conv_008653.json
deleted file mode 100644
index 15314147b61dac9112938b03997c037ad0296b12..0000000000000000000000000000000000000000
--- a/conversations/conv_008653.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.13164105350706,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "551-132996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-132996.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.424107394804057,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275168.flac |",
-      "real_speaker_id": "7242",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51163.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275146.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.872191495895713,
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-      "utterance_id": "5809-51162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51162.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.982210215452454,
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-      "duration": 1.1494308380546059,
-      "start_frame": 479715,
-      "duration_frames": 18390,
-      "overlap": true,
-      "utterance_id": "7242-275146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275146.flac |",
-      "real_speaker_id": "7242",
-      "position_frames": 97140
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_008665.json b/conversations/conv_008665.json
deleted file mode 100644
index 2687c305fd9f6e22830b0cfef36c0324a93c8672..0000000000000000000000000000000000000000
--- a/conversations/conv_008665.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3493-46712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.236035047073408,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171139.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-17615.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 0
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-      "utterance_id": "3654-171138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171138.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3493-17615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-17615.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 87261
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.183293923252524,
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-      "duration": 2.816706076747476,
-      "start_frame": 466932,
-      "duration_frames": 45067,
-      "overlap": false,
-      "utterance_id": "3493-46712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 101200
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3654/cough/0042.wav",
-      "duration": 1.1112945306872506,
-      "start_time": 17.43426338268723,
-      "speaker_id": "3654"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3493/cough/0062.wav",
-      "duration": 1.0384486608924584,
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-      "speaker_id": "3493"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008669.json b/conversations/conv_008669.json
deleted file mode 100644
index 9f413c3a1450c7bab433d5fd15c983c12e5dc36e..0000000000000000000000000000000000000000
--- a/conversations/conv_008669.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.237754778284824,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8295-287767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-287767.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.2037201424840465,
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-      "utterance_id": "1455-138263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1455-138263.flac |",
-      "real_speaker_id": "1455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4110-11528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11528.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.957946657271197,
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-      "utterance_id": "8295-296107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-296107.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.795645883221226,
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-      "real_speaker_id": "1455",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 14572,
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-      "utterance_id": "4110-11533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11533.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1455/laugh/0103.wav",
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-      "start_time": 5.496692155582799,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4110/cough/0021.wav",
-      "duration": 0.7213177622619331,
-      "start_time": 11.659464600474843,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8295/laugh/0044.wav",
-      "duration": 1.04,
-      "start_time": 21.792885987217616,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1455/cough/0023.wav",
-      "duration": 1.14,
-      "start_time": 30.86,
-      "speaker_id": "1455"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008673.json b/conversations/conv_008673.json
deleted file mode 100644
index 586ad97295a261697130662616e1e3fd6b430228..0000000000000000000000000000000000000000
--- a/conversations/conv_008673.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.188892403547392,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127537.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_008678.json b/conversations/conv_008678.json
deleted file mode 100644
index e5d9e5b8c9f13df8b0b386b8d3a359834d934f02..0000000000000000000000000000000000000000
--- a/conversations/conv_008678.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2751-142363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 4.370386783638593,
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-      "utterance_id": "949-134660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134660.flac |",
-      "real_speaker_id": "949",
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-      "real_speaker_id": "1069",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 66209
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "949-138545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-138545.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_008681.json b/conversations/conv_008681.json
deleted file mode 100644
index 65eb7f1e804427826737769bd1e2be5a26aba374..0000000000000000000000000000000000000000
--- a/conversations/conv_008681.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "103-1240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1240.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
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-      "real_speaker_id": "1456",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "2294-161714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161714.flac |",
-      "real_speaker_id": "2294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1456-136846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-136846.flac |",
-      "real_speaker_id": "1456",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1456-130544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130544.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.84,
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-    {
-      "event_class": "cough",
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-      "duration": 1.06,
-      "start_time": 28.709267826398147,
-      "speaker_id": "103"
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-    {
-      "event_class": "laugh",
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-      "start_time": 30.555597403294854,
-      "speaker_id": "1456"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008686.json b/conversations/conv_008686.json
deleted file mode 100644
index 5d789714cbb4c0601038094e70038bb27d69b417..0000000000000000000000000000000000000000
--- a/conversations/conv_008686.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7559-96246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31920.flac |",
-      "real_speaker_id": "5791",
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-      "utterance_id": "2067-143536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "7559-96247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 30.96,
-      "speaker_id": "7559"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008690.json b/conversations/conv_008690.json
deleted file mode 100644
index 7054ae11ad40d8740f26d44d83ecbf3d779dc05c..0000000000000000000000000000000000000000
--- a/conversations/conv_008690.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.430645005887687,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.546704722259801,
-      "duration": 3.546704722259801,
-      "start_frame": 0,
-      "duration_frames": 56747,
-      "overlap": false,
-      "utterance_id": "7886-110517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110517.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.6837581474460475,
-      "end_time": 9.200467340051798,
-      "duration": 4.516709192605751,
-      "start_frame": 74940,
-      "duration_frames": 72267,
-      "overlap": false,
-      "utterance_id": "6224-34608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-34608.flac |",
-      "real_speaker_id": "6224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.650660470099009,
-      "end_time": 16.219744662244505,
-      "duration": 6.569084192145496,
-      "start_frame": 154410,
-      "duration_frames": 105105,
-      "overlap": false,
-      "utterance_id": "6224-34608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-34608.flac |",
-      "real_speaker_id": "6224",
-      "position_frames": 72267
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.48200105594887,
-      "end_time": 21.835588035036363,
-      "duration": 5.353586979087492,
-      "start_frame": 263712,
-      "duration_frames": 85657,
-      "overlap": true,
-      "utterance_id": "2740-162051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.624763793494544,
-      "end_time": 28.945049836049748,
-      "duration": 6.320286042555205,
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-      "duration_frames": 101124,
-      "overlap": false,
-      "utterance_id": "6224-34608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-34608.flac |",
-      "real_speaker_id": "6224",
-      "position_frames": 177372
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.89409320822778,
-      "end_time": 31.430645005887687,
-      "duration": 2.5365517976599072,
-      "start_frame": 462305,
-      "duration_frames": 40584,
-      "overlap": true,
-      "utterance_id": "2740-162051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 85657
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
-      "duration": 26.313143642225498,
-      "start_time": 0.5331054347835148
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
-      "duration": 0.2863945578231292,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
-      "duration": 1.2682135819555764,
-      "start_time": 27.14284529559792
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7886/cough/0051.wav",
-      "duration": 0.9846806936871992,
-      "start_time": 3.7081847813633577,
-      "speaker_id": "7886"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6224/laugh/0049.wav",
-      "duration": 0.5726949338697991,
-      "start_time": 8.779779509511664,
-      "speaker_id": "6224"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2740/laugh/0001.wav",
-      "duration": 0.8155691359630439,
-      "start_time": 15.52376268488059,
-      "speaker_id": "2740"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008697.json b/conversations/conv_008697.json
deleted file mode 100644
index 1015046072b1d55e1eba9201e3696f8e526921cb..0000000000000000000000000000000000000000
--- a/conversations/conv_008697.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.394760491145143,
-      "duration": 4.394760491145143,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.852468553570198,
-      "end_time": 8.952733711095597,
-      "duration": 4.100265157525398,
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-      "utterance_id": "7314-93276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-93276.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.593296350972699,
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-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 70316
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.991797175199665,
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-      "duration": 4.307734540320845,
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-      "duration_frames": 68923,
-      "overlap": false,
-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 127369
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.14475514016263,
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-      "duration_frames": 58772,
-      "overlap": false,
-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 68923
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.50354141990132,
-      "end_time": 32.0,
-      "duration": 3.496458580098679,
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-      "overlap": false,
-      "utterance_id": "7314-93277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-93277.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5186/laugh/0038.wav",
-      "duration": 1.3088781005076882,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5186/cough/0065.wav",
-      "duration": 0.753677626073191,
-      "start_time": 0,
-      "speaker_id": "5186"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008700.json b/conversations/conv_008700.json
deleted file mode 100644
index 6db00068bddc16509287a4f55fa99f23553d7981..0000000000000000000000000000000000000000
--- a/conversations/conv_008700.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "3021-121440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121440.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4108-2777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2777.flac |",
-      "real_speaker_id": "4108",
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-      "real_speaker_id": "4108",
-      "position_frames": 95410
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "846-130986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/846-130986.flac |",
-      "real_speaker_id": "846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "846",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4108-2777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2777.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 203287
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008716.json b/conversations/conv_008716.json
deleted file mode 100644
index 31f75f783ee982258f991dd3d8503bb14fa4beaf..0000000000000000000000000000000000000000
--- a/conversations/conv_008716.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7946-111913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-111913.flac |",
-      "real_speaker_id": "7946",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7946-111913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-111913.flac |",
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-    {
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_4.wav",
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7946/laugh/0050.wav",
-      "duration": 0.92,
-      "start_time": 0,
-      "speaker_id": "7946"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7314/laugh/0041.wav",
-      "duration": 0.7613269264472194,
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-      "speaker_id": "7314"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 29.870893910490867,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "7314"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008717.json b/conversations/conv_008717.json
deleted file mode 100644
index b3fcad9844a1db35d5b7d20f62070e2066e5d11f..0000000000000000000000000000000000000000
--- a/conversations/conv_008717.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.3724773617433685,
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-      "overlap": false,
-      "utterance_id": "3869-700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-700.flac |",
-      "real_speaker_id": "3869",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.053838915504748,
-      "end_time": 12.201535441528367,
-      "duration": 6.14769652602362,
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-      "duration_frames": 98363,
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-      "utterance_id": "6550-53343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53343.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.784818013749899,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-700.flac |",
-      "real_speaker_id": "3869",
-      "position_frames": 85959
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.111583956300716,
-      "end_time": 23.406019349280797,
-      "duration": 5.294435392980079,
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-      "overlap": false,
-      "utterance_id": "6550-53320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53320.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.650688726241285,
-      "end_time": 30.53901453592657,
-      "duration": 6.888325809685285,
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-      "duration_frames": 110213,
-      "overlap": false,
-      "utterance_id": "3869-700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-700.flac |",
-      "real_speaker_id": "3869",
-      "position_frames": 163889
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.833838398761372,
-      "end_time": 32.0,
-      "duration": 1.1661616012386276,
-      "start_frame": 493341,
-      "duration_frames": 18658,
-      "overlap": false,
-      "utterance_id": "2416-152137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.2509960626533467,
-      "start_time": 21.325583053180157
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3869/laugh/0036.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "3869"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3869/laugh/0072.wav",
-      "duration": 1.34,
-      "start_time": 17.736025054005204,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6550/laugh/0035.wav",
-      "duration": 0.5037254651769203,
-      "start_time": 23.680599732360974,
-      "speaker_id": "6550"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2416/laugh/0048.wav",
-      "duration": 0.9957392604471604,
-      "start_time": 30.91525464476123,
-      "speaker_id": "2416"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008720.json b/conversations/conv_008720.json
deleted file mode 100644
index 064f6918e3e252c87d476ea724925e4eda1a5420..0000000000000000000000000000000000000000
--- a/conversations/conv_008720.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.206049818127045,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4441-76263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76263.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.236792490780611,
-      "end_time": 9.966496416089445,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.102422831572106,
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-      "utterance_id": "742-128034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 75675
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.208258186162087,
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-      "overlap": false,
-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.025053310410463,
-      "end_time": 25.079159010559174,
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-      "duration_frames": 48865,
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-      "utterance_id": "4441-76263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76263.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 74154
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 25.886844639178594,
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-      "duration_frames": 57427,
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-      "utterance_id": "742-128033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.07506492400445,
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-      "duration": 2.1309848941225944,
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-      "duration_frames": 34095,
-      "overlap": true,
-      "utterance_id": "4441-76262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76262.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_008736.json b/conversations/conv_008736.json
deleted file mode 100644
index 0a13fa16d73a09292c4be9fea952c0c09b73533a..0000000000000000000000000000000000000000
--- a/conversations/conv_008736.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.51958959132816,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-65546.flac |",
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-      "real_speaker_id": "6557",
-      "position_frames": 131975
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "real_speaker_id": "8687",
-      "position_frames": 101860
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008740.json b/conversations/conv_008740.json
deleted file mode 100644
index 4c2c52e5799e902f48e8befa605266c40cabed52..0000000000000000000000000000000000000000
--- a/conversations/conv_008740.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "real_speaker_id": "5980",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-18509.flac |",
-      "real_speaker_id": "5199",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.104766760050182,
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-      "duration": 3.8952332399498175,
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-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 196434
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "speaker_id": "4019"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008741.json b/conversations/conv_008741.json
deleted file mode 100644
index f8608ebf309f996016e950d9115ea96913929d2c..0000000000000000000000000000000000000000
--- a/conversations/conv_008741.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.045803133253266,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126294.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 8.141727006919643,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-122810.flac |",
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-      "real_speaker_id": "2237",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.99003701050705,
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-      "utterance_id": "458-126290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126290.flac |",
-      "real_speaker_id": "458",
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-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 81946
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 30.049989553092885,
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-      "utterance_id": "439-122810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-122810.flac |",
-      "real_speaker_id": "439",
-      "position_frames": 59652
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008757.json b/conversations/conv_008757.json
deleted file mode 100644
index c055e879ac04d726478b8f822f6a2194ae570ed1..0000000000000000000000000000000000000000
--- a/conversations/conv_008757.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.795040072667344,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-11714.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "2061",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3664-178366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-178366.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 86018
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-    {
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-      "speaker_id": "2061"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008761.json b/conversations/conv_008761.json
deleted file mode 100644
index 98117dd0b6680f6184af4674217466107389e628..0000000000000000000000000000000000000000
--- a/conversations/conv_008761.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.528880718362952,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92806.flac |",
-      "real_speaker_id": "6895",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126929.flac |",
-      "real_speaker_id": "593",
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-    },
-    {
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8678-280914",
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-      "real_speaker_id": "8678",
-      "position_frames": 150056
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-    {
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-      "duration_frames": 62155,
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-      "utterance_id": "593-126928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126928.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-      "speaker_id": "593"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008777.json b/conversations/conv_008777.json
deleted file mode 100644
index 1a357d7156864f4f738e140aebdaa78b99bb0e00..0000000000000000000000000000000000000000
--- a/conversations/conv_008777.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "start_frame": 0,
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-      "utterance_id": "5933-73033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-73033.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.2094135222339535,
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\ No newline at end of file
diff --git a/conversations/conv_008782.json b/conversations/conv_008782.json
deleted file mode 100644
index d211c266eeab5e33b430304c7e1e3588d8a9f16e..0000000000000000000000000000000000000000
--- a/conversations/conv_008782.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-147627.flac |",
-      "real_speaker_id": "2269",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-147627.flac |",
-      "real_speaker_id": "2269",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
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-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_008785.json b/conversations/conv_008785.json
deleted file mode 100644
index 19eae96d44322833c531e776516e15a109c83579..0000000000000000000000000000000000000000
--- a/conversations/conv_008785.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "8307",
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-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_008793.json b/conversations/conv_008793.json
deleted file mode 100644
index c54e397f7caec80df6f066646d2aa4b556815c27..0000000000000000000000000000000000000000
--- a/conversations/conv_008793.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138656.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "2319",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-123525.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_008794.json b/conversations/conv_008794.json
deleted file mode 100644
index b0302cf77ba8986e4913392817aa4aad2587cfae..0000000000000000000000000000000000000000
--- a/conversations/conv_008794.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13262.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008798.json b/conversations/conv_008798.json
deleted file mode 100644
index 8af1a9ea16b76bec917363fb93e07f731d67841f..0000000000000000000000000000000000000000
--- a/conversations/conv_008798.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
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-      "start_time": 5.777486340338356,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
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-      "utterance_id": "2473-157861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157861.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.961123542702383,
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-      "utterance_id": "294-130872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 53617
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.75591404476208,
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-      "utterance_id": "8028-233366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 77522
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-      "utterance_id": "2473-157859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157859.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-      "event_class": "Dishes",
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-      "start_time": 30.52,
-      "speaker_id": "2473"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008802.json b/conversations/conv_008802.json
deleted file mode 100644
index dbe3dbb6318400bf53003942a1e69da95c60ebac..0000000000000000000000000000000000000000
--- a/conversations/conv_008802.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.42258022094813,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-260942.flac |",
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-      "real_speaker_id": "209",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.84389724215898,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-187735.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-274737.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008805.json b/conversations/conv_008805.json
deleted file mode 100644
index 8c4224cfc91477bcf21326430c7ffebd4fd92e02..0000000000000000000000000000000000000000
--- a/conversations/conv_008805.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.604942891452311,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6098-57836.flac |",
-      "real_speaker_id": "6098",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7241",
-      "position_frames": 58081
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-    {
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-      "speaker_id": "8867"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008809.json b/conversations/conv_008809.json
deleted file mode 100644
index 99c56954fb9500cceb62506530047f9d168c429d..0000000000000000000000000000000000000000
--- a/conversations/conv_008809.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "7285-72200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72200.flac |",
-      "real_speaker_id": "7285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.333505803200505,
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-      "overlap": false,
-      "utterance_id": "6446-78193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-78193.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.309533115691023,
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-      "duration": 5.451891696245484,
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-      "utterance_id": "1311-134176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134176.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.498700373610745,
-      "end_time": 23.0350408213976,
-      "duration": 4.536340447786856,
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-      "overlap": false,
-      "utterance_id": "7285-72207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72207.flac |",
-      "real_speaker_id": "7285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.146645074607058,
-      "end_time": 29.53848880957306,
-      "duration": 5.391843734966002,
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-      "duration_frames": 86269,
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-      "utterance_id": "1311-134176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134176.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 87230
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.033221045484957,
-      "end_time": 32.0,
-      "duration": 1.9667789545150427,
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-      "duration_frames": 31468,
-      "overlap": false,
-      "utterance_id": "7285-72200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72200.flac |",
-      "real_speaker_id": "7285",
-      "position_frames": 78418
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
-      "start_time": 11.594142946608308
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 2.2330385487528344,
-      "start_time": 10.92029606524623
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6446/cough/0031.wav",
-      "duration": 1.18,
-      "start_time": 11.693800101487636,
-      "speaker_id": "6446"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008813.json b/conversations/conv_008813.json
deleted file mode 100644
index 631629a37ff820b7827425a9e0f8859355f7f0d5..0000000000000000000000000000000000000000
--- a/conversations/conv_008813.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.2514392200984865,
-      "duration": 6.2514392200984865,
-      "start_frame": 0,
-      "duration_frames": 100023,
-      "overlap": false,
-      "utterance_id": "428-125877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125877.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.086334122643308,
-      "end_time": 10.55052154069728,
-      "duration": 3.464187418053973,
-      "start_frame": 113381,
-      "duration_frames": 55426,
-      "overlap": true,
-      "utterance_id": "4415-16759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.243091552599733,
-      "end_time": 15.779212966284504,
-      "duration": 3.5361214136847723,
-      "start_frame": 195889,
-      "duration_frames": 56577,
-      "overlap": false,
-      "utterance_id": "85-121551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
-      "real_speaker_id": "85",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.307279236392247,
-      "end_time": 20.90708608603455,
-      "duration": 4.5998068496423015,
-      "start_frame": 260916,
-      "duration_frames": 73596,
-      "overlap": false,
-      "utterance_id": "428-125877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125877.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 100023
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.521263720277588,
-      "end_time": 27.27903486967211,
-      "duration": 5.75777114939452,
-      "start_frame": 344340,
-      "duration_frames": 92124,
-      "overlap": false,
-      "utterance_id": "85-121551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
-      "real_speaker_id": "85",
-      "position_frames": 56577
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.456832009697074,
-      "end_time": 32.0,
-      "duration": 4.543167990302926,
-      "start_frame": 439309,
-      "duration_frames": 72690,
-      "overlap": false,
-      "utterance_id": "428-125877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125877.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 173619
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
-      "duration": 11.450680272108844,
-      "start_time": 15.53326503944652
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
-      "duration": 3.708575370401923,
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-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.006201257125741,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/428/laugh/0146.wav",
-      "duration": 0.586682666090121,
-      "start_time": 15.493400460458746,
-      "speaker_id": "428"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/85/laugh/0106.wav",
-      "duration": 1.24,
-      "start_time": 27.388512831687194,
-      "speaker_id": "85"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/428/cough/0052.wav",
-      "duration": 0.978569967197982,
-      "start_time": 31.02143003280202,
-      "speaker_id": "428"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008814.json b/conversations/conv_008814.json
deleted file mode 100644
index f092edb611a9a50ba968636828565ba3b6bbf05f..0000000000000000000000000000000000000000
--- a/conversations/conv_008814.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.593762077977957,
-      "duration": 6.593762077977957,
-      "start_frame": 0,
-      "duration_frames": 105500,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.447732921329446,
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-      "duration": 3.805158934820688,
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-      "duration_frames": 60882,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 105500
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5723-43306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-43306.flac |",
-      "real_speaker_id": "5723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.74040774849907,
-      "end_time": 21.826381676871858,
-      "duration": 3.085973928372789,
-      "start_frame": 299846,
-      "duration_frames": 49375,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 166382
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.367647970720324,
-      "end_time": 28.38599157039372,
-      "duration": 6.018343599673395,
-      "start_frame": 357882,
-      "duration_frames": 96293,
-      "overlap": false,
-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.45031605238931,
-      "end_time": 32.0,
-      "duration": 2.5496839476106885,
-      "start_frame": 471205,
-      "duration_frames": 40794,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 215757
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
-      "duration": 0.6165759637188208,
-      "start_time": 5.025463795195844
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/laugh/0034.wav",
-      "duration": 0.5691206332920491,
-      "start_time": 0,
-      "speaker_id": "7263"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/laugh/0025.wav",
-      "duration": 1.4,
-      "start_time": 11.352770917426332,
-      "speaker_id": "7263"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008825.json b/conversations/conv_008825.json
deleted file mode 100644
index f84c2610f8609b95bbb807b663451f048b934a90..0000000000000000000000000000000000000000
--- a/conversations/conv_008825.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.573313827107707,
-      "duration": 4.573313827107707,
-      "start_frame": 0,
-      "duration_frames": 73173,
-      "overlap": false,
-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.2555586713080595,
-      "end_time": 11.986898468010182,
-      "duration": 6.731339796702123,
-      "start_frame": 84088,
-      "duration_frames": 107701,
-      "overlap": false,
-      "utterance_id": "1674-142298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1674-142298.flac |",
-      "real_speaker_id": "1674",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.253007921914334,
-      "end_time": 16.74143275571398,
-      "duration": 4.488424833799645,
-      "start_frame": 196048,
-      "duration_frames": 71814,
-      "overlap": true,
-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 73173
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.373634350133457,
-      "end_time": 23.837404775369627,
-      "duration": 5.463770425236172,
-      "start_frame": 293978,
-      "duration_frames": 87420,
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-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 144987
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.032847994330467,
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-      "duration": 5.079885895700824,
-      "start_frame": 400525,
-      "duration_frames": 81278,
-      "overlap": false,
-      "utterance_id": "1674-142277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1674-142277.flac |",
-      "real_speaker_id": "1674",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.030861467498326,
-      "end_time": 32.0,
-      "duration": 0.9691385325016739,
-      "start_frame": 496493,
-      "duration_frames": 15506,
-      "overlap": false,
-      "utterance_id": "4545-9166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
-      "duration": 0.6236734693877551,
-      "start_time": 22.54645941088505
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1006/laugh/0046.wav",
-      "duration": 1.2,
-      "start_time": 4.73932004289925,
-      "speaker_id": "1006"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1674/cough/0138.wav",
-      "duration": 0.5032305517022297,
-      "start_time": 12.18231151091482,
-      "speaker_id": "1674"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4545/cough/0089.wav",
-      "duration": 0.4021470918529835,
-      "start_time": 31.252786673858,
-      "speaker_id": "4545"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008828.json b/conversations/conv_008828.json
deleted file mode 100644
index 97183c3c3a0ce5e1e8de83f145de391289126959..0000000000000000000000000000000000000000
--- a/conversations/conv_008828.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 31.255524287588823,
-  "num_speakers": 2,
-  "overlap_rate": 0.375,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.010889552470528,
-      "duration": 3.010889552470528,
-      "start_frame": 0,
-      "duration_frames": 48174,
-      "overlap": false,
-      "utterance_id": "6687-119383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119383.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.556852193381781,
-      "end_time": 7.9941609895937935,
-      "duration": 4.437308796212013,
-      "start_frame": 56909,
-      "duration_frames": 70996,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_008829.json b/conversations/conv_008829.json
deleted file mode 100644
index aebef049f654b00750153ca4cc3fd452bba251ad..0000000000000000000000000000000000000000
--- a/conversations/conv_008829.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "real_speaker_id": "1094",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-9937.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157768.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_008833.json b/conversations/conv_008833.json
deleted file mode 100644
index 8b5c2abfae85d76262d8bf115fdbb5466ea7b6c9..0000000000000000000000000000000000000000
--- a/conversations/conv_008833.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8009-282532.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 162886
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_008838.json b/conversations/conv_008838.json
deleted file mode 100644
index aeca65f855bf163d2c5811e773ac78e5d9a17c42..0000000000000000000000000000000000000000
--- a/conversations/conv_008838.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6583-66269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66269.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
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-    {
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-    {
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-      "utterance_id": "6583-66463",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_008843.json b/conversations/conv_008843.json
deleted file mode 100644
index c1aa16a5ae79fe042d73af1446cb63d7bb06e066..0000000000000000000000000000000000000000
--- a/conversations/conv_008843.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_008844.json b/conversations/conv_008844.json
deleted file mode 100644
index 19600d1c46e1f2de222281c152e18e001ae97860..0000000000000000000000000000000000000000
--- a/conversations/conv_008844.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "position_frames": 182171
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_008848.json b/conversations/conv_008848.json
deleted file mode 100644
index c630b78fdd09ac8b9401dfe6ab6b22428f406658..0000000000000000000000000000000000000000
--- a/conversations/conv_008848.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_008852.json b/conversations/conv_008852.json
deleted file mode 100644
index 56fe97bba848250b9d00aec98ea4f0bb04a066f6..0000000000000000000000000000000000000000
--- a/conversations/conv_008852.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96667.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 57159
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
-      "duration": 12.891174362934926,
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 2.313710321068977,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7649/laugh/0117.wav",
-      "duration": 1.04,
-      "start_time": 7.1833043520805555,
-      "speaker_id": "7649"
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-    {
-      "event_class": "cough",
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-      "duration": 0.7347151521217884,
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-      "speaker_id": "7649"
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-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 6.802173761070488,
-      "speaker_id": "201"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 11.502601128964937,
-      "speaker_id": "150"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/201/cough/0068.wav",
-      "duration": 1.04,
-      "start_time": 30.370957417636845,
-      "speaker_id": "201"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008855.json b/conversations/conv_008855.json
deleted file mode 100644
index a2af8f6fc6e2ffa617fbfb1d055b3bec2b6072ff..0000000000000000000000000000000000000000
--- a/conversations/conv_008855.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.510744255004175,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3224-168198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168198.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.168265640282051,
-      "end_time": 12.872675208561041,
-      "duration": 5.70440956827899,
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-      "utterance_id": "2416-152139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "3224-168204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168204.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "2416-152137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 21.393507470942293,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-167024.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 55288
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_0.wav",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-      "duration": 1.28,
-      "start_time": 12.895852735847267,
-      "speaker_id": "2416"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3224/laugh/0004.wav",
-      "duration": 1.2,
-      "start_time": 14.353938262196287,
-      "speaker_id": "3224"
-    },
-    {
-      "event_class": "cough",
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-      "speaker_id": "3224"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008864.json b/conversations/conv_008864.json
deleted file mode 100644
index e2edc0b75800e4e26c4a3e77465773d695452f67..0000000000000000000000000000000000000000
--- a/conversations/conv_008864.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1773-145716",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145716.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.076306006398763,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1179-138367.flac |",
-      "real_speaker_id": "1179",
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-      "start_time": 14.514179035703181,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 69426
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1773-145712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145712.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 61289,
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-      "utterance_id": "5412-39899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 176022
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.092053440961543,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145712.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 66002
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "start_time": 31.123647967884537,
-      "speaker_id": "1773"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008868.json b/conversations/conv_008868.json
deleted file mode 100644
index e42e86f4fd9be7b3386ac2147b6fcb34fcbecacf..0000000000000000000000000000000000000000
--- a/conversations/conv_008868.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.532708586684553,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "3922-715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-715.flac |",
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-    {
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-    {
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-    {
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8490/laugh/0082.wav",
-      "duration": 1.2,
-      "start_time": 25.148033523518553,
-      "speaker_id": "8490"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8490/cough/0028.wav",
-      "duration": 0.49271336333848637,
-      "start_time": 31.507286636661515,
-      "speaker_id": "8490"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008872.json b/conversations/conv_008872.json
deleted file mode 100644
index db7160a94db93bb2efcf3c5c59aeef3e0e3262b7..0000000000000000000000000000000000000000
--- a/conversations/conv_008872.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.377861962139312,
-      "duration": 6.377861962139312,
-      "start_frame": 0,
-      "duration_frames": 102045,
-      "overlap": false,
-      "utterance_id": "6378-61780",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61780.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.606054848549693,
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-      "duration": 5.9317725241029535,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 12.647101226874973,
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-      "overlap": true,
-      "utterance_id": "6685-70976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70976.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 20.09685690658505,
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-      "overlap": false,
-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.94899122236365,
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-      "overlap": false,
-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.73253078956724,
-      "end_time": 32.0,
-      "duration": 1.2674692104327612,
-      "start_frame": 491720,
-      "duration_frames": 20279,
-      "overlap": false,
-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 87194
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_5.wav",
-      "duration": 0.2931972789115646,
-      "start_time": 29.825177065833838
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-    {
-      "event_class": "Cat",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.219927746761328,
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-      "duration": 1.18,
-      "start_time": 27.798138488885762,
-      "speaker_id": "4088"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008887.json b/conversations/conv_008887.json
deleted file mode 100644
index 3be128754550d75a844401dd82df38c47ac21a99..0000000000000000000000000000000000000000
--- a/conversations/conv_008887.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.914099216510266,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4422-23271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-23271.flac |",
-      "real_speaker_id": "4422",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 5.516879494412313,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
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-      "real_speaker_id": "460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 89572
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.235259971852965,
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-      "utterance_id": "460-172359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172359.flac |",
-      "real_speaker_id": "460",
-      "position_frames": 66627
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.719681393493165,
-      "end_time": 31.914099216510266,
-      "duration": 5.194417823017101,
-      "start_frame": 427514,
-      "duration_frames": 83110,
-      "overlap": false,
-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 165695
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6003/laugh/0017.wav",
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-    {
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-      "duration": 1.36,
-      "start_time": 17.873885862624647,
-      "speaker_id": "6003"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/460/laugh/0072.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.412245521702561,
-      "start_time": 27.686903271256963,
-      "speaker_id": "6003"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008890.json b/conversations/conv_008890.json
deleted file mode 100644
index 4a727228aa67ce279411e29e9e60cdf03ab5c682..0000000000000000000000000000000000000000
--- a/conversations/conv_008890.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7067-76047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7067-76047.flac |",
-      "real_speaker_id": "7067",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
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-      "real_speaker_id": "7067",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 68425
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7067-76048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7067-76048.flac |",
-      "real_speaker_id": "7067",
-      "position_frames": 86468
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Alarm_bell_ringing",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7067/laugh/0083.wav",
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-    {
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-      "speaker_id": "7067"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008891.json b/conversations/conv_008891.json
deleted file mode 100644
index f636d2d126aca829a57dd314db09be9ed7a3953e..0000000000000000000000000000000000000000
--- a/conversations/conv_008891.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127579.flac |",
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-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127597.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127579.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 85509
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 22.479812609602256,
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-}
\ No newline at end of file
diff --git a/conversations/conv_008901.json b/conversations/conv_008901.json
deleted file mode 100644
index 223c027825d0d804fce530ee0598f6dc8335dd19..0000000000000000000000000000000000000000
--- a/conversations/conv_008901.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.27672992547685,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.619089699452482,
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-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 0
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-      "start_time": 9.105973543248684,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 0
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-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 107905
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-      "speaker_id": 0,
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-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 70028
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.73867516443301,
-      "end_time": 31.27672992547685,
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-      "start_frame": 443818,
-      "duration_frames": 56608,
-      "overlap": true,
-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 59696
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "event_class": "Blender",
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-      "speaker_id": "8476"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008906.json b/conversations/conv_008906.json
deleted file mode 100644
index 937df2b5dac90063f8173bebfcae66a83af90858..0000000000000000000000000000000000000000
--- a/conversations/conv_008906.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.485561993272289,
-      "duration": 3.485561993272289,
-      "start_frame": 0,
-      "duration_frames": 55768,
-      "overlap": false,
-      "utterance_id": "1636-130501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.039288178044876,
-      "end_time": 7.925347691373174,
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-      "utterance_id": "1636-130501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 55768
-    },
-    {
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-      "utterance_id": "1636-141789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-141789.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-7574.flac |",
-      "real_speaker_id": "3171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.954452743567217,
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-      "overlap": false,
-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 69359
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.396187801495557,
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-      "duration": 1.6038121985044427,
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-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1636/laugh/0104.wav",
-      "duration": 1.04,
-      "start_time": 10.560007814765799,
-      "speaker_id": "1636"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2334/laugh/0033.wav",
-      "duration": 1.0052078388955703,
-      "start_time": 30.63381023752925,
-      "speaker_id": "2334"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008910.json b/conversations/conv_008910.json
deleted file mode 100644
index 01157e059831887c29be0c5a5343b857b33c8ba6..0000000000000000000000000000000000000000
--- a/conversations/conv_008910.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.140852231613316,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3340-170982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-170982.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.4814045761624985,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3598-180204.flac |",
-      "real_speaker_id": "3598",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-169293.flac |",
-      "real_speaker_id": "3340",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7011-66622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
-      "real_speaker_id": "7011",
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-      "real_speaker_id": "7011",
-      "position_frames": 68026
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-    {
-      "event_class": "cough",
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-      "start_time": 15.990447637352101,
-      "speaker_id": "7011"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008917.json b/conversations/conv_008917.json
deleted file mode 100644
index a6a95e3349b8ac99341885d2220c0af8ae316990..0000000000000000000000000000000000000000
--- a/conversations/conv_008917.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "7520-258986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
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-      "real_speaker_id": "7520",
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-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008921.json b/conversations/conv_008921.json
deleted file mode 100644
index 8deb72839ca9932344099dc6def3fdd2df9ab01c..0000000000000000000000000000000000000000
--- a/conversations/conv_008921.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "1066",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161707.flac |",
-      "real_speaker_id": "2294",
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-      "speaker_id": 2,
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-      "real_speaker_id": "2971",
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-      "segment_id": "seg0005",
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-      "position_frames": 99003
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\ No newline at end of file
diff --git a/conversations/conv_008937.json b/conversations/conv_008937.json
deleted file mode 100644
index f61ea6e0580e807251f7f3f855b09ddc7809e5fd..0000000000000000000000000000000000000000
--- a/conversations/conv_008937.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "3258",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6356-271890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6356-271890.flac |",
-      "real_speaker_id": "6356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6356-271889.flac |",
-      "real_speaker_id": "6356",
-      "position_frames": 97739
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7463/laugh/0009.wav",
-      "duration": 1.5,
-      "start_time": 0,
-      "speaker_id": "7463"
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-      "start_time": 0,
-      "speaker_id": "7463"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008940.json b/conversations/conv_008940.json
deleted file mode 100644
index b94ff398bf70f595beb3feabe145fdf890294eef..0000000000000000000000000000000000000000
--- a/conversations/conv_008940.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2021-235245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235245.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.089934532595998,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-287657.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2021-235244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235244.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.675595029081318,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-287657.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 75148
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235244.flac |",
-      "real_speaker_id": "2021",
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-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 0.82,
-      "start_time": 30.24783181948492,
-      "speaker_id": "2021"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008947.json b/conversations/conv_008947.json
deleted file mode 100644
index 1428f6278c4c1549eee56b51229598407bd1762e..0000000000000000000000000000000000000000
--- a/conversations/conv_008947.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.635772590153802,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4898-28461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-28461.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.974425010665424,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254949.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5764.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
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-    {
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-      "utterance_id": "7926-254949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254949.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 61699
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration": 6.130441033185853,
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-      "overlap": false,
-      "utterance_id": "3215-5764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5764.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 70022
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.51384279581092,
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-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_008951.json b/conversations/conv_008951.json
deleted file mode 100644
index 3306b1efbabd3cfb27d738a097463387b59ad2bf..0000000000000000000000000000000000000000
--- a/conversations/conv_008951.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-82271.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-11691.flac |",
-      "real_speaker_id": "83",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-77626.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3912-82271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-82271.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 49592
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 106016
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "83"
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-}
\ No newline at end of file
diff --git a/conversations/conv_008956.json b/conversations/conv_008956.json
deleted file mode 100644
index a426457073a6cd9f13bd772b0b9876f5f948bee5..0000000000000000000000000000000000000000
--- a/conversations/conv_008956.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.61532988521205,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
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-      "real_speaker_id": "2334",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
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-      "real_speaker_id": "1923",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-    {
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-      "duration": 1.32,
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008960.json b/conversations/conv_008960.json
deleted file mode 100644
index 98625704c130e417dac982cfd4e119996af38ee3..0000000000000000000000000000000000000000
--- a/conversations/conv_008960.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-159352.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-71320.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.300453124048605,
-      "end_time": 32.0,
-      "duration": 0.6995468759513948,
-      "start_frame": 500807,
-      "duration_frames": 11192,
-      "overlap": false,
-      "utterance_id": "731-366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-366.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 72832
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-      "event_class": "Frying",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 27.443014607722386,
-      "speaker_id": "731"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5968/laugh/0049.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "5968"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/731/cough/0028.wav",
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-      "start_time": 31.368868441484217,
-      "speaker_id": "731"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008976.json b/conversations/conv_008976.json
deleted file mode 100644
index 2a736e00d560aa64837d48534741fc5140d22d01..0000000000000000000000000000000000000000
--- a/conversations/conv_008976.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.970639048911927,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.766680087668749,
-      "duration": 4.766680087668749,
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-      "duration_frames": 76266,
-      "overlap": false,
-      "utterance_id": "724-123283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123283.flac |",
-      "real_speaker_id": "724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.330296334998104,
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-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.016485032658956,
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-      "overlap": false,
-      "utterance_id": "724-123285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123285.flac |",
-      "real_speaker_id": "724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.269529073676658,
-      "end_time": 23.75404273485613,
-      "duration": 5.4845136611794745,
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-      "overlap": false,
-      "utterance_id": "1992-141719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.778327273167644,
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-      "duration": 3.7736184215623707,
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-      "duration_frames": 60377,
-      "overlap": true,
-      "utterance_id": "724-123285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123285.flac |",
-      "real_speaker_id": "724",
-      "position_frames": 100892
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.853537838562183,
-      "end_time": 31.970639048911927,
-      "duration": 3.1171012103497437,
-      "start_frame": 461656,
-      "duration_frames": 49873,
-      "overlap": false,
-      "utterance_id": "1992-141719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 87752
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.8788581185318796,
-      "start_time": 15.342014091462817
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1992/laugh/0051.wav",
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-      "speaker_id": "1992"
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
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-      "speaker_id": "724"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1992/laugh/0041.wav",
-      "duration": 1.6,
-      "start_time": 30.233842072045316,
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-    {
-      "event_class": "cough",
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-      "start_time": 30.778797320083132,
-      "speaker_id": "1992"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008982.json b/conversations/conv_008982.json
deleted file mode 100644
index d83b36ce01f06f2efa702dfab3de31ab052d18be..0000000000000000000000000000000000000000
--- a/conversations/conv_008982.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3144-166426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3144-166426.flac |",
-      "real_speaker_id": "3144",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.898682905605958,
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-      "utterance_id": "2730-154437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154437.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "utterance_id": "3144-166426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3144-166426.flac |",
-      "real_speaker_id": "3144",
-      "position_frames": 95645
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 70665,
-      "overlap": false,
-      "utterance_id": "2730-154436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154436.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.422927652805633,
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-      "duration_frames": 59273,
-      "overlap": false,
-      "utterance_id": "2730-154436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154436.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 70665
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.304468604754458,
-      "end_time": 32.0,
-      "duration": 4.695531395245542,
-      "start_frame": 436871,
-      "duration_frames": 75128,
-      "overlap": false,
-      "utterance_id": "3144-166428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3144-166428.flac |",
-      "real_speaker_id": "3144",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3144/laugh/0067.wav",
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-      "start_time": 6.075558346880851,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3144/laugh/0002.wav",
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-      "speaker_id": "3144"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2730/laugh/0021.wav",
-      "duration": 1.06,
-      "start_time": 16.601452995101177,
-      "speaker_id": "2730"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3144/cough/0084.wav",
-      "duration": 1.0089022424026064,
-      "start_time": 26.09704399145325,
-      "speaker_id": "3144"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008983.json b/conversations/conv_008983.json
deleted file mode 100644
index 461ba30ab28c2b6c2e041f128ab25f9cc7c27bb0..0000000000000000000000000000000000000000
--- a/conversations/conv_008983.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2039-141208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141208.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.130447158048238,
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-      "utterance_id": "294-129973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-129973.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.147541739781778,
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-      "overlap": false,
-      "utterance_id": "83-3054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.777717892634286,
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-      "duration": 3.248819547256237,
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-      "overlap": false,
-      "utterance_id": "2039-141208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141208.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 84693
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "end_time": 24.86353890697759,
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-      "utterance_id": "294-129973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-129973.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 99180
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.176373211906842,
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-      "duration_frames": 68108,
-      "overlap": true,
-      "utterance_id": "2039-141208",
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-      "real_speaker_id": "2039",
-      "position_frames": 136674
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 0.7766043800660469,
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-      "utterance_id": "294-130872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 13.600198018824731,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2039/cough/0094.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/294/laugh/0003.wav",
-      "duration": 1.72,
-      "start_time": 20.61094828452643,
-      "speaker_id": "294"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2039/laugh/0102.wav",
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-      "start_time": 23.931855295848077,
-      "speaker_id": "2039"
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2039/cough/0111.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/294/laugh/0051.wav",
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-      "start_time": 31.368911192986307,
-      "speaker_id": "294"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008992.json b/conversations/conv_008992.json
deleted file mode 100644
index ce6d199ddd08b92556868fafb0ce225c712e7dd6..0000000000000000000000000000000000000000
--- a/conversations/conv_008992.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8298197640785236,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-284014.flac |",
-      "real_speaker_id": "8441",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-94108.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-284014.flac |",
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-      "position_frames": 132613
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-      "segment_id": "seg0005",
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-      "start_time": 26.973781449053682,
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-      "utterance_id": "7247-77778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-77778.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.1,
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-      "speaker_id": "8441"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7247/laugh/0057.wav",
-      "duration": 1.06,
-      "start_time": 30.94,
-      "speaker_id": "7247"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008995.json b/conversations/conv_008995.json
deleted file mode 100644
index 01eaa37120e0515634c63a0e47414b04d69926d9..0000000000000000000000000000000000000000
--- a/conversations/conv_008995.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4407-13132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13132.flac |",
-      "real_speaker_id": "4407",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13132.flac |",
-      "real_speaker_id": "4407",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-72637.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13145.flac |",
-      "real_speaker_id": "4407",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-78186.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4407-13146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13146.flac |",
-      "real_speaker_id": "4407",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.39679534083048,
-      "end_time": 32.0,
-      "duration": 2.6032046591695206,
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-      "utterance_id": "8272-279789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
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-  "foreground_events": [
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-      "start_time": 23.830609924932794,
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-      "duration": 1.48,
-      "start_time": 27.891486854986393,
-      "speaker_id": "8272"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_008999.json b/conversations/conv_008999.json
deleted file mode 100644
index 20a1e3d038d260b159a92e7a3bed2c0ca0dfa60a..0000000000000000000000000000000000000000
--- a/conversations/conv_008999.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.90965498464135,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4363-14936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-14936.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.689501864071577,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
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-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.844653359037835,
-      "end_time": 25.696637082369303,
-      "duration": 6.851983723331467,
-      "start_frame": 301514,
-      "duration_frames": 109631,
-      "overlap": false,
-      "utterance_id": "7245-104890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104890.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.9839550426846,
-      "end_time": 31.90965498464135,
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-      "utterance_id": "4363-14936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-14936.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 111060
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4363/cough/0068.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7250/laugh/0115.wav",
-      "duration": 0.7258987978646894,
-      "start_time": 12.198627107484075,
-      "speaker_id": "7250"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009003.json b/conversations/conv_009003.json
deleted file mode 100644
index 7574bbe5f557331f209ebbd2bb2209284dcfa1ec..0000000000000000000000000000000000000000
--- a/conversations/conv_009003.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.437632216917427,
-      "duration": 4.437632216917427,
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-      "duration_frames": 71002,
-      "overlap": false,
-      "utterance_id": "1058-133263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-133263.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.365151914304092,
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-      "duration": 6.074171604877678,
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-      "duration_frames": 97186,
-      "overlap": false,
-      "utterance_id": "1058-133263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-133263.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 71002
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "3486-166446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.237410761145654,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-133263.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 168188
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1171-134968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-134968.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.484562358608223,
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-      "duration": 4.515437641391777,
-      "start_frame": 439752,
-      "duration_frames": 72247,
-      "overlap": false,
-      "utterance_id": "3486-166446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 75311
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79638.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3486/laugh/0081.wav",
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-      "start_time": 13.522579646477494,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1058/cough/0002.wav",
-      "duration": 0.9436292808713096,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3486/cough/0111.wav",
-      "duration": 0.4414777628028258,
-      "start_time": 30.223277975797338,
-      "speaker_id": "3486"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009014.json b/conversations/conv_009014.json
deleted file mode 100644
index d74e661c2e19acb2bdfb9dff0470b16753c99922..0000000000000000000000000000000000000000
--- a/conversations/conv_009014.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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-  "total_duration": 30.823453739184014,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.438441387526927,
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-      "utterance_id": "6087-63229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-63229.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 7.482873709030746,
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-      "duration": 5.676038143207084,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.780774159678653,
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-      "duration": 6.475861591330508,
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-      "overlap": true,
-      "utterance_id": "8222-274378",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274378.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.457082036121236,
-      "end_time": 24.629197800540503,
-      "duration": 4.1721157644192655,
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-      "overlap": false,
-      "utterance_id": "6087-63229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-63229.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 103015
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.73447782103863,
-      "end_time": 30.823453739184014,
-      "duration": 6.088975918145383,
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-      "overlap": true,
-      "utterance_id": "3486-166424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6087/laugh/0121.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "6087"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8222/laugh/0079.wav",
-      "duration": 1.28,
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-      "event_class": "cough",
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-      "duration": 1.16,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 20.982880767397287,
-      "speaker_id": "6087"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009015.json b/conversations/conv_009015.json
deleted file mode 100644
index f91eec2d898094e702d208cd260571b0a035a4e2..0000000000000000000000000000000000000000
--- a/conversations/conv_009015.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.0427980054859,
-      "duration": 6.0427980054859,
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-      "overlap": false,
-      "utterance_id": "6735-66412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-66412.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.4996688093926585,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-291938.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-66412.flac |",
-      "real_speaker_id": "6735",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5854-50960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-50960.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 23.12834339981898,
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-      "real_speaker_id": "6735",
-      "position_frames": 188508
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.450874799705012,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "8799-270794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-270794.flac |",
-      "real_speaker_id": "8799",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_5.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5854/laugh/0006.wav",
-      "duration": 1.08,
-      "start_time": 17.241633355497324,
-      "speaker_id": "5854"
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-    {
-      "event_class": "cough",
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-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "8799"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009019.json b/conversations/conv_009019.json
deleted file mode 100644
index 0f541f5e392bbb4949d886987c41d28eefe7134c..0000000000000000000000000000000000000000
--- a/conversations/conv_009019.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.955983035329837,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305208.flac |",
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-      "utterance_id": "8846-305209",
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-      "position_frames": 64344
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-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009023.json b/conversations/conv_009023.json
deleted file mode 100644
index 14814cf585be51a6eebcc6152b92091a0a7e6d38..0000000000000000000000000000000000000000
--- a/conversations/conv_009023.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "7640-104647",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-104647.flac |",
-      "real_speaker_id": "7640",
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-    {
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "7640"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4474/laugh/0045.wav",
-      "duration": 0.8,
-      "start_time": 26.70609050084536,
-      "speaker_id": "4474"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4513/cough/0021.wav",
-      "duration": 0.631643540430981,
-      "start_time": 31.368356459569018,
-      "speaker_id": "4513"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009028.json b/conversations/conv_009028.json
deleted file mode 100644
index 23876f431b3dd8d100652965be010fa31b0b7e7b..0000000000000000000000000000000000000000
--- a/conversations/conv_009028.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.279347692583194,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.100588425501165,
-      "duration": 3.100588425501165,
-      "start_frame": 0,
-      "duration_frames": 49609,
-      "overlap": false,
-      "utterance_id": "1726-142316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.017715439618822,
-      "end_time": 7.287875155169518,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 49609
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-      "segment_id": "seg0002",
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-      "utterance_id": "3798-16984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16984.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.616903156646991,
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-      "utterance_id": "1726-142316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 101931
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.461024589634356,
-      "end_time": 23.7565810429236,
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-      "utterance_id": "3798-16984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16984.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 80920
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.15740575641035,
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-      "utterance_id": "6082-56174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.081761272748423,
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-      "utterance_id": "3798-16981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16981.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "speaker_id": "6082"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009035.json b/conversations/conv_009035.json
deleted file mode 100644
index a697046f9a24c4781984d982e68761559916e948..0000000000000000000000000000000000000000
--- a/conversations/conv_009035.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.864663454867433,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
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-      "utterance_id": "625-132112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "218-131205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.77859312656839,
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-      "overlap": false,
-      "utterance_id": "2238-121415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 57504
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "218-131206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009038.json b/conversations/conv_009038.json
deleted file mode 100644
index 3297d61032672ee7b0f0282874cd7a9d128d80be..0000000000000000000000000000000000000000
--- a/conversations/conv_009038.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "968-122544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
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-      "position_frames": 100839
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1844-144486",
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-      "real_speaker_id": "1844",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009039.json b/conversations/conv_009039.json
deleted file mode 100644
index 4879061698b8fa9e48dfa3ef4670e97c67a77d18..0000000000000000000000000000000000000000
--- a/conversations/conv_009039.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.533136824021547,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "3691-178118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178118.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.41456444076938,
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-      "segment_id": "seg0002",
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-      "utterance_id": "8722-296473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8722-296473.flac |",
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-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 29.126501602738102,
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-}
\ No newline at end of file
diff --git a/conversations/conv_009042.json b/conversations/conv_009042.json
deleted file mode 100644
index 1e778fd1e947ee4ef9d2643f61e081d2195d65b7..0000000000000000000000000000000000000000
--- a/conversations/conv_009042.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3257-169284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169284.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.0387906741096335,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
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-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.569070596342979,
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-      "utterance_id": "712-123606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.563152906939088,
-      "end_time": 27.28217185129313,
-      "duration": 6.7190189443540405,
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-      "duration_frames": 107504,
-      "overlap": false,
-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 70868
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.329322486170582,
-      "end_time": 32.0,
-      "duration": 3.6706775138294176,
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-      "overlap": false,
-      "utterance_id": "3257-169288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169288.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "laugh",
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-      "duration": 0.8022041682100238,
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-      "speaker_id": "712"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009043.json b/conversations/conv_009043.json
deleted file mode 100644
index 6ef803ff947f7e713daf3d75f4f4f16df105f395..0000000000000000000000000000000000000000
--- a/conversations/conv_009043.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.18328814034252,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6531-61334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
-      "real_speaker_id": "329",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-285137.flac |",
-      "real_speaker_id": "8459",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 17.300534126759622,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
-      "real_speaker_id": "329",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.011865370245914,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-285173.flac |",
-      "real_speaker_id": "8459",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.82068422654786,
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-      "utterance_id": "329-862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 143914
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8459/laugh/0008.wav",
-      "duration": 1.08,
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-    {
-      "event_class": "cough",
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-      "start_time": 31.238692781674146,
-      "speaker_id": "329"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009054.json b/conversations/conv_009054.json
deleted file mode 100644
index 058fdd465b22c91c0123e7e1d315d337fcb46321..0000000000000000000000000000000000000000
--- a/conversations/conv_009054.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7507-100422",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100422.flac |",
-      "real_speaker_id": "7507",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "7507",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7169",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100463.flac |",
-      "real_speaker_id": "7507",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2393-144496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2393-144496.flac |",
-      "real_speaker_id": "2393",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.990878456100386,
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-      "utterance_id": "7507-100463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100463.flac |",
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-      "position_frames": 55675
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_009058.json b/conversations/conv_009058.json
deleted file mode 100644
index a8c1a44c30fe50a2182d92c4db864160ffe113d5..0000000000000000000000000000000000000000
--- a/conversations/conv_009058.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7777-106367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106367.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009062.json b/conversations/conv_009062.json
deleted file mode 100644
index f901e50723c5b81378f7e33f3c66725766db0757..0000000000000000000000000000000000000000
--- a/conversations/conv_009062.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "4425-14497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.479664398072104,
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-      "utterance_id": "3513-7741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-7741.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-121089.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-121089.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 60940
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_009069.json b/conversations/conv_009069.json
deleted file mode 100644
index d784daf17c4e10cd2e14e3d3020a0fe9494ca3f9..0000000000000000000000000000000000000000
--- a/conversations/conv_009069.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "581-126955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/581-126955.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "581-126957",
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-      "real_speaker_id": "581",
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-      "real_speaker_id": "3006",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.109236636276666,
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-      "overlap": false,
-      "utterance_id": "968-122544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "581-126955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/581-126955.flac |",
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-      "position_frames": 110273
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009074.json b/conversations/conv_009074.json
deleted file mode 100644
index 573065d2a883b38022ea85a9f068c284a2bdf19b..0000000000000000000000000000000000000000
--- a/conversations/conv_009074.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8392-285237",
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_009078.json b/conversations/conv_009078.json
deleted file mode 100644
index b7381eb4493c8c3f903589b31381fe3b6e42b896..0000000000000000000000000000000000000000
--- a/conversations/conv_009078.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4422-23271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-23271.flac |",
-      "real_speaker_id": "4422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.781833624238824,
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-      "duration": 4.968904686666602,
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-      "overlap": false,
-      "utterance_id": "8295-287767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-287767.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.351928298242605,
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-      "start_frame": 197630,
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-      "overlap": false,
-      "utterance_id": "8295-281339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-281339.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.79680930503781,
-      "end_time": 22.165741883997605,
-      "duration": 5.368932578959791,
-      "start_frame": 268748,
-      "duration_frames": 85902,
-      "overlap": false,
-      "utterance_id": "4422-283730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-283730.flac |",
-      "real_speaker_id": "4422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.655902524480286,
-      "end_time": 27.94020072003785,
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-      "overlap": false,
-      "utterance_id": "8295-287767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-287767.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 79502
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.493457894439633,
-      "end_time": 32.0,
-      "duration": 3.506542105560367,
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-      "utterance_id": "4422-283730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-283730.flac |",
-      "real_speaker_id": "4422",
-      "position_frames": 85902
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_4.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8295/laugh/0021.wav",
-      "duration": 1.52,
-      "start_time": 15.959289408686697,
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-    {
-      "event_class": "cough",
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-      "duration": 0.8593230035338288,
-      "start_time": 17.45190442480799,
-      "speaker_id": "4422"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009081.json b/conversations/conv_009081.json
deleted file mode 100644
index 3295bb4cd1dadb1d64097d068f20186d3b9db4d4..0000000000000000000000000000000000000000
--- a/conversations/conv_009081.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.104134110230898,
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-      "overlap": false,
-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.194835680279958,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-99912.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 97666
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.446485725089374,
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-      "overlap": false,
-      "utterance_id": "7463-99912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-99912.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 94658
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.843112826750087,
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-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 162551
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.8808871751274,
-      "end_time": 32.0,
-      "duration": 3.1191128248726017,
-      "start_frame": 462094,
-      "duration_frames": 49905,
-      "overlap": false,
-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "start_time": 3.373441747529339
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8334/laugh/0112.wav",
-      "duration": 1.58,
-      "start_time": 17.90122622179633,
-      "speaker_id": "8334"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8334/cough/0115.wav",
-      "duration": 0.8274367573722341,
-      "start_time": 22.871404632397173,
-      "speaker_id": "8334"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5269/laugh/0001.wav",
-      "duration": 0.5191212917062704,
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-      "speaker_id": "5269"
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-    {
-      "event_class": "cough",
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-      "duration": 1.3218512728603555,
-      "start_time": 29.58843590354168,
-      "speaker_id": "5269"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009086.json b/conversations/conv_009086.json
deleted file mode 100644
index d9eef4abf1b07e01a8f4d8a698b7eb929507f107..0000000000000000000000000000000000000000
--- a/conversations/conv_009086.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.011924686735549,
-      "duration": 6.011924686735549,
-      "start_frame": 0,
-      "duration_frames": 96190,
-      "overlap": false,
-      "utterance_id": "7177-120275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-120275.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.35707671000128,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89646.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.269719318200993,
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-      "duration_frames": 99620,
-      "overlap": false,
-      "utterance_id": "7433-89656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89656.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.5849921476295,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258977.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.252474956321386,
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-      "utterance_id": "7433-261115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-261115.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.257321141599814,
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-      "duration": 2.742678858400186,
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-      "duration_frames": 43882,
-      "overlap": false,
-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-    {
-      "event_class": "Frying",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.407724271910087,
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-    {
-      "event_class": "cough",
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-      "duration": 0.7937663167147315,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7433/laugh/0029.wav",
-      "duration": 0.96,
-      "start_time": 28.895971686823106,
-      "speaker_id": "7433"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009090.json b/conversations/conv_009090.json
deleted file mode 100644
index 41ec718e9a413f855dc85415d3937a5ed78441fd..0000000000000000000000000000000000000000
--- a/conversations/conv_009090.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "289-121665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121665.flac |",
-      "real_speaker_id": "289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "8240-283234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-283234.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "810-130096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130096.flac |",
-      "real_speaker_id": "810",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.186463089269278,
-      "end_time": 23.177483422193312,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121665.flac |",
-      "real_speaker_id": "289",
-      "position_frames": 59168
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.744516744493172,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-283234.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 106756
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.34410904459903,
-      "end_time": 32.0,
-      "duration": 3.65589095540097,
-      "start_frame": 453505,
-      "duration_frames": 58494,
-      "overlap": false,
-      "utterance_id": "810-130096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130096.flac |",
-      "real_speaker_id": "810",
-      "position_frames": 83686
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
-      "duration": 0.9133560090702948,
-      "start_time": 30.527560768140845
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_009097.json b/conversations/conv_009097.json
deleted file mode 100644
index da9235677397d801ed74c0fb2e786b8c8d1eedbe..0000000000000000000000000000000000000000
--- a/conversations/conv_009097.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-28461.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 100076
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.37452154463786,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 30.313805255287555,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128982.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-      "event_class": "cough",
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-      "duration": 1.72,
-      "start_time": 30.28,
-      "speaker_id": "441"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009106.json b/conversations/conv_009106.json
deleted file mode 100644
index e5b7a0445ee51fd7751b762e6fcf872cc9149c17..0000000000000000000000000000000000000000
--- a/conversations/conv_009106.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6388-64974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6388-64974.flac |",
-      "real_speaker_id": "6388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.217850517733764,
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-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6388-64974.flac |",
-      "real_speaker_id": "6388",
-      "position_frames": 63450
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20426.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 71969
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.72349724047397,
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-      "duration": 2.2765027595260285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6388-64974.flac |",
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-      "position_frames": 152991
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009107.json b/conversations/conv_009107.json
deleted file mode 100644
index 19ae94e3bc9965d34ba22bfb516b38945029b02c..0000000000000000000000000000000000000000
--- a/conversations/conv_009107.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "720-173582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/720-173582.flac |",
-      "real_speaker_id": "720",
-      "position_frames": 0
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-      "position_frames": 91959
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "753-150477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-150477.flac |",
-      "real_speaker_id": "753",
-      "position_frames": 0
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009111.json b/conversations/conv_009111.json
deleted file mode 100644
index a6c489b551559ec612c2783b6280b11dae356a52..0000000000000000000000000000000000000000
--- a/conversations/conv_009111.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "2787-157400",
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-    {
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
-      "duration": 1.0443083900226757,
-      "start_time": 24.138222713332283
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.6451781194847626,
-      "start_time": 26.478443908240244
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/957/cough/0002.wav",
-      "duration": 0.5146351600908292,
-      "start_time": 13.57308900402552,
-      "speaker_id": "957"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2787/laugh/0057.wav",
-      "duration": 1.32,
-      "start_time": 18.89544254712245,
-      "speaker_id": "2787"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/957/laugh/0035.wav",
-      "duration": 1.2375796353960955,
-      "start_time": 25.36911045828393,
-      "speaker_id": "957"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009127.json b/conversations/conv_009127.json
deleted file mode 100644
index 52e7fac54f16838bbc537caf4c24f9855ed8fb7e..0000000000000000000000000000000000000000
--- a/conversations/conv_009127.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.592383515491581,
-      "duration": 6.592383515491581,
-      "start_frame": 0,
-      "duration_frames": 105478,
-      "overlap": false,
-      "utterance_id": "6064-300880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-300880.flac |",
-      "real_speaker_id": "6064",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.296251328443056,
-      "end_time": 11.054029409173964,
-      "duration": 3.7577780807309082,
-      "start_frame": 116740,
-      "duration_frames": 60124,
-      "overlap": false,
-      "utterance_id": "7318-96168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.174477395120656,
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-      "duration": 6.22448971501328,
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-      "overlap": false,
-      "utterance_id": "6064-300880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-300880.flac |",
-      "real_speaker_id": "6064",
-      "position_frames": 105478
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.868990188126798,
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-      "duration": 5.070056977812748,
-      "start_frame": 285903,
-      "duration_frames": 81120,
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-      "utterance_id": "7318-96168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 60124
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.069523038743064,
-      "end_time": 29.166157528976377,
-      "duration": 6.0966344902333125,
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-      "overlap": false,
-      "utterance_id": "6701-71402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71402.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.60431396325855,
-      "end_time": 32.0,
-      "duration": 1.3956860367414485,
-      "start_frame": 489669,
-      "duration_frames": 22330,
-      "overlap": false,
-      "utterance_id": "6064-56168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-56168.flac |",
-      "real_speaker_id": "6064",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
-      "duration": 1.168121014401562,
-      "start_time": 29.931436148440742
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7318/cough/0041.wav",
-      "duration": 0.5594679338597194,
-      "start_time": 10.098154453877758,
-      "speaker_id": "7318"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7318/cough/0093.wav",
-      "duration": 1.015117705092973,
-      "start_time": 21.855551309053983,
-      "speaker_id": "7318"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6701/laugh/0087.wav",
-      "duration": 1.24,
-      "start_time": 29.1705483813484,
-      "speaker_id": "6701"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009131.json b/conversations/conv_009131.json
deleted file mode 100644
index e35621e1bd4119985c9c128c3f375300e405a72e..0000000000000000000000000000000000000000
--- a/conversations/conv_009131.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.170527976111131,
-      "duration": 6.170527976111131,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8119-115686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115686.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.427577138883921,
-      "end_time": 11.754186892371518,
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-      "overlap": false,
-      "utterance_id": "3717-21493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21493.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.567983880790003,
-      "end_time": 16.17185733610212,
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-      "overlap": false,
-      "utterance_id": "7198-80652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.77327580871923,
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-      "start_frame": 268372,
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-      "utterance_id": "8119-115687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115687.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.586235463579776,
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-      "utterance_id": "7198-80654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80654.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.280637569951356,
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-      "duration": 3.719362430048644,
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-      "duration_frames": 59509,
-      "overlap": false,
-      "utterance_id": "3717-21493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21493.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 85225
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
-      "duration": 0.20596371882086167,
-      "start_time": 12.02245251872263
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_009146.json b/conversations/conv_009146.json
deleted file mode 100644
index a17261cd7e309f6c4d9441fb76f1e2049f013e52..0000000000000000000000000000000000000000
--- a/conversations/conv_009146.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.85067303970017,
-      "duration": 6.85067303970017,
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-      "overlap": false,
-      "utterance_id": "6670-112764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.010452066321566,
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-      "duration": 5.853252414504889,
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-      "utterance_id": "8329-279775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8329-279775.flac |",
-      "real_speaker_id": "8329",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.559953139344412,
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-      "duration_frames": 56094,
-      "overlap": false,
-      "utterance_id": "6670-84209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-84209.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.263177636606002,
-      "end_time": 22.964439975698085,
-      "duration": 4.701262339092082,
-      "start_frame": 292210,
-      "duration_frames": 75220,
-      "overlap": false,
-      "utterance_id": "8329-279775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8329-279775.flac |",
-      "real_speaker_id": "8329",
-      "position_frames": 93652
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.203271539677512,
-      "end_time": 27.26926224246047,
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-      "overlap": false,
-      "utterance_id": "6670-296083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-296083.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.006407577064063,
-      "end_time": 32.0,
-      "duration": 3.9935924229359365,
-      "start_frame": 448102,
-      "duration_frames": 63897,
-      "overlap": false,
-      "utterance_id": "8329-279775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8329-279775.flac |",
-      "real_speaker_id": "8329",
-      "position_frames": 168872
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
-    {
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-      "duration": 3.043157064191155,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6670/cough/0040.wav",
-      "duration": 1.2,
-      "start_time": 6.88491357976946,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009150.json b/conversations/conv_009150.json
deleted file mode 100644
index 986bbe78b28ca35b67249832ec63635b5ad367b0..0000000000000000000000000000000000000000
--- a/conversations/conv_009150.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.981044204084554,
-      "duration": 5.981044204084554,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "868-131296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131296.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.686743704429399,
-      "end_time": 13.27278896094197,
-      "duration": 6.5860452565125716,
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-      "duration_frames": 105376,
-      "overlap": false,
-      "utterance_id": "5712-48842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48842.flac |",
-      "real_speaker_id": "5712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.60738810615296,
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-      "duration": 4.634045938859863,
-      "start_frame": 217718,
-      "duration_frames": 74144,
-      "overlap": false,
-      "utterance_id": "868-131294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131294.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.289188879058027,
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-      "duration_frames": 61792,
-      "overlap": true,
-      "utterance_id": "5712-48848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48848.flac |",
-      "real_speaker_id": "5712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.950594453840065,
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-      "duration_frames": 75207,
-      "overlap": false,
-      "utterance_id": "868-131295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131295.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.101610631266254,
-      "end_time": 32.0,
-      "duration": 3.8983893687337456,
-      "start_frame": 449625,
-      "duration_frames": 62374,
-      "overlap": false,
-      "utterance_id": "5712-48842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48842.flac |",
-      "real_speaker_id": "5712",
-      "position_frames": 105376
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/868/laugh/0009.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "868"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5712/cough/0048.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "5712"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009151.json b/conversations/conv_009151.json
deleted file mode 100644
index b64e993e108c87dc927f0516a0602cd640e39ae6..0000000000000000000000000000000000000000
--- a/conversations/conv_009151.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287357.flac |",
-      "real_speaker_id": "8498",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_009166.json b/conversations/conv_009166.json
deleted file mode 100644
index 05d8d8e52735375301933bb19c74cedfed57b324..0000000000000000000000000000000000000000
--- a/conversations/conv_009166.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5339-14133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14133.flac |",
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-      "real_speaker_id": "3665",
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-      "segment_id": "seg0006",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_009170.json b/conversations/conv_009170.json
deleted file mode 100644
index 014db157d3aab4a4436172c9625422c0262678c0..0000000000000000000000000000000000000000
--- a/conversations/conv_009170.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_009182.json b/conversations/conv_009182.json
deleted file mode 100644
index 9aa0b84a7a4c89b930eafdca291aaa17b7270f1d..0000000000000000000000000000000000000000
--- a/conversations/conv_009182.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_009185.json b/conversations/conv_009185.json
deleted file mode 100644
index d7b37c3db82b68bdf8f33d332f43df000aae18f3..0000000000000000000000000000000000000000
--- a/conversations/conv_009185.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.478637238062884,
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-      "overlap": false,
-      "utterance_id": "1058-131113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 5.309358483244187,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
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-      "start_time": 11.764225370207873,
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-      "utterance_id": "1058-131113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 71658
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.290094971128003,
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-      "duration": 6.868036483911714,
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-      "overlap": false,
-      "utterance_id": "5781-52135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.604447810500133,
-      "end_time": 28.953944535764133,
-      "duration": 3.349496725264001,
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-      "overlap": false,
-      "utterance_id": "1058-131113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 157503
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.311444688252536,
-      "end_time": 32.0,
-      "duration": 2.6885553117474643,
-      "start_frame": 468983,
-      "duration_frames": 43016,
-      "overlap": false,
-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 96943
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-      "event_class": "laugh",
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-      "duration": 1.48,
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-      "event_class": "laugh",
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-      "speaker_id": "1058"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009189.json b/conversations/conv_009189.json
deleted file mode 100644
index ec4021144b47c643df91567c1c2413818d7619b4..0000000000000000000000000000000000000000
--- a/conversations/conv_009189.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5963837906307914,
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-      "utterance_id": "1629-139710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139710.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.796847983900707,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1629-139710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139710.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 57542
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1373-132103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 102357
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.03765645751015,
-      "end_time": 32.0,
-      "duration": 2.962343542489851,
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-      "duration_frames": 47397,
-      "overlap": false,
-      "utterance_id": "1629-139707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139707.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-    {
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-      "duration": 1.16,
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-    {
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-      "speaker_id": "1629"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009192.json b/conversations/conv_009192.json
deleted file mode 100644
index fd829cb87c2b18ec80e3edd677c9f1bb5dbbb0e2..0000000000000000000000000000000000000000
--- a/conversations/conv_009192.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.68590568481908,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1124-134775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-134775.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
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-      "segment_id": "seg0003",
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-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "64",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-134775.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009193.json b/conversations/conv_009193.json
deleted file mode 100644
index 8b15600a44fb957b1f12fa5bac95091c42d147d1..0000000000000000000000000000000000000000
--- a/conversations/conv_009193.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.028534243820744,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "start_time": 14.043566193966697
-    },
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.6465068499889433,
-      "start_time": 22.881406538280274
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1212/laugh/0046.wav",
-      "duration": 0.804478478772185,
-      "start_time": 10.37177181464732,
-      "speaker_id": "1212"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4189/laugh/0041.wav",
-      "duration": 1.28,
-      "start_time": 14.862685929996601,
-      "speaker_id": "4189"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4189/laugh/0111.wav",
-      "duration": 1.5917262169201396,
-      "start_time": 18.96619011034084,
-      "speaker_id": "4189"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009194.json b/conversations/conv_009194.json
deleted file mode 100644
index 166d89e34be5bce9b20fe845445d87b7463cba9d..0000000000000000000000000000000000000000
--- a/conversations/conv_009194.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.607274278493321,
-      "duration": 3.607274278493321,
-      "start_frame": 0,
-      "duration_frames": 57716,
-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.250711318257498,
-      "end_time": 8.288869502254446,
-      "duration": 4.0381581839969485,
-      "start_frame": 68011,
-      "duration_frames": 64610,
-      "overlap": false,
-      "utterance_id": "1390-130493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1390-130493.flac |",
-      "real_speaker_id": "1390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.531854302559918,
-      "end_time": 12.53520779756982,
-      "duration": 4.003353495009902,
-      "start_frame": 136509,
-      "duration_frames": 64053,
-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 57716
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.728829404190336,
-      "end_time": 19.038289473513558,
-      "duration": 5.3094600693232215,
-      "start_frame": 219661,
-      "duration_frames": 84951,
-      "overlap": false,
-      "utterance_id": "7258-91902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91902.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.288304158229458,
-      "end_time": 24.452226846360965,
-      "duration": 5.163922688131509,
-      "start_frame": 308612,
-      "duration_frames": 82622,
-      "overlap": false,
-      "utterance_id": "1390-130494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1390-130494.flac |",
-      "real_speaker_id": "1390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.149718688666834,
-      "end_time": 29.952659145801753,
-      "duration": 4.80294045713492,
-      "start_frame": 402395,
-      "duration_frames": 76847,
-      "overlap": false,
-      "utterance_id": "7258-91905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91905.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.35680797290725,
-      "end_time": 32.0,
-      "duration": 1.6431920270927485,
-      "start_frame": 485708,
-      "duration_frames": 26291,
-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 121769
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
-      "duration": 15.907332759335176,
-      "start_time": 3.6348667784330972
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
-      "duration": 0.4758730158730159,
-      "start_time": 23.40560405251401
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/229/cough/0006.wav",
-      "duration": 0.9403447537314451,
-      "start_time": 3.694722761027177,
-      "speaker_id": "229"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/229/laugh/0004.wav",
-      "duration": 1.16,
-      "start_time": 12.823496004782237,
-      "speaker_id": "229"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009202.json b/conversations/conv_009202.json
deleted file mode 100644
index 65b9a0718082f0a7fba993ce90f49a1a048650cd..0000000000000000000000000000000000000000
--- a/conversations/conv_009202.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.612422515034448,
-      "duration": 5.612422515034448,
-      "start_frame": 0,
-      "duration_frames": 89798,
-      "overlap": false,
-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.1482107939426935,
-      "end_time": 10.34793418121191,
-      "duration": 4.199723387269216,
-      "start_frame": 98371,
-      "duration_frames": 67195,
-      "overlap": false,
-      "utterance_id": "175-129587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-129587.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.721725269598547,
-      "end_time": 15.211170401026626,
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-      "start_frame": 171547,
-      "duration_frames": 71831,
-      "overlap": false,
-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 89798
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.219654853419357,
-      "end_time": 21.642104704690233,
-      "duration": 5.422449851270877,
-      "start_frame": 259514,
-      "duration_frames": 86759,
-      "overlap": false,
-      "utterance_id": "6415-111615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.952289545419664,
-      "end_time": 28.82179557917732,
-      "duration": 6.869506033757654,
-      "start_frame": 351236,
-      "duration_frames": 109912,
-      "overlap": true,
-      "utterance_id": "175-129587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-129587.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 67195
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.463057048936918,
-      "end_time": 32.0,
-      "duration": 1.5369429510630823,
-      "start_frame": 487408,
-      "duration_frames": 24591,
-      "overlap": false,
-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 161629
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
-      "duration": 10.824117056198011,
-      "start_time": 16.542893312109022
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
-      "duration": 2.2395691609977324,
-      "start_time": 20.246946605792036
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_009205.json b/conversations/conv_009205.json
deleted file mode 100644
index 3f7342f4fbbbb7c033a0a5133dfa2d262c5ad870..0000000000000000000000000000000000000000
--- a/conversations/conv_009205.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.728341374003705,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.1295298415154456,
-      "duration": 6.1295298415154456,
-      "start_frame": 0,
-      "duration_frames": 98072,
-      "overlap": false,
-      "utterance_id": "6880-216547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6880-216547.flac |",
-      "real_speaker_id": "6880",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.4467174140028805,
-      "end_time": 12.509479739889777,
-      "duration": 6.062762325886896,
-      "start_frame": 103147,
-      "duration_frames": 97004,
-      "overlap": false,
-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.417258793107859,
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-      "duration": 4.409482257171386,
-      "start_frame": 214676,
-      "duration_frames": 70551,
-      "overlap": false,
-      "utterance_id": "4771-6409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.972139456212545,
-      "end_time": 24.765141086373774,
-      "duration": 5.7930016301612275,
-      "start_frame": 303554,
-      "duration_frames": 92688,
-      "overlap": false,
-      "utterance_id": "6880-216547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6880-216547.flac |",
-      "real_speaker_id": "6880",
-      "position_frames": 98072
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.19490069416147,
-      "end_time": 30.728341374003705,
-      "duration": 5.533440679842237,
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-      "utterance_id": "4771-29403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-29403.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-      "start_time": 1.815003373398403
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_5.wav",
-      "duration": 0.2931972789115646,
-      "start_time": 18.232468902069062
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6880/laugh/0039.wav",
-      "duration": 1.04,
-      "start_time": 6.243444025831468,
-      "speaker_id": "6880"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4771/laugh/0083.wav",
-      "duration": 0.5089433187721131,
-      "start_time": 17.936351082061528,
-      "speaker_id": "4771"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009213.json b/conversations/conv_009213.json
deleted file mode 100644
index c9b95bd26ce3968630e412596bc175476e8b4cbf..0000000000000000000000000000000000000000
--- a/conversations/conv_009213.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.874944459310816,
-      "duration": 4.874944459310816,
-      "start_frame": 0,
-      "duration_frames": 77999,
-      "overlap": false,
-      "utterance_id": "4719-25766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.384725510257521,
-      "end_time": 12.181428391000537,
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-      "duration_frames": 92747,
-      "overlap": false,
-      "utterance_id": "1664-122623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.791816061155606,
-      "end_time": 18.54269706710223,
-      "duration": 5.750881005946628,
-      "start_frame": 204669,
-      "duration_frames": 92014,
-      "overlap": false,
-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.838942755519685,
-      "end_time": 24.73452806212434,
-      "duration": 6.895585306604653,
-      "start_frame": 285423,
-      "duration_frames": 110329,
-      "overlap": true,
-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 92014
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.657669944158954,
-      "end_time": 32.0,
-      "duration": 5.342330055841046,
-      "start_frame": 426522,
-      "duration_frames": 85477,
-      "overlap": false,
-      "utterance_id": "1664-122623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 92747
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "speaker_id": "1664"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009214.json b/conversations/conv_009214.json
deleted file mode 100644
index 1d681dec41ce76854761f56baa298313151bcb97..0000000000000000000000000000000000000000
--- a/conversations/conv_009214.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_009218.json b/conversations/conv_009218.json
deleted file mode 100644
index 89a8762379301ab054b7572528e5ee68bec59ccb..0000000000000000000000000000000000000000
--- a/conversations/conv_009218.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39676.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
-      "real_speaker_id": "1417",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-2344.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0006",
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-      "start_time": 31.0358082462308,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_009222.json b/conversations/conv_009222.json
deleted file mode 100644
index 0f2f89810df4f9029a4f74173f99e98c633e7491..0000000000000000000000000000000000000000
--- a/conversations/conv_009222.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135540.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "8307-120457",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120457.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "1184-135532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135532.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_009234.json b/conversations/conv_009234.json
deleted file mode 100644
index 9c0fd8118e44b3f69d2d9169f7ea16a17406aee7..0000000000000000000000000000000000000000
--- a/conversations/conv_009234.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122425.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122442.flac |",
-      "real_speaker_id": "211",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6533",
-      "position_frames": 194045
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-    {
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-  "background_events": [
-    {
-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_009238.json b/conversations/conv_009238.json
deleted file mode 100644
index 27badebde14f89cde4f68166fcc3f5ef9b86bee0..0000000000000000000000000000000000000000
--- a/conversations/conv_009238.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "1379-130530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1379-130530.flac |",
-      "real_speaker_id": "1379",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6119-48032.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2279-141140.flac |",
-      "real_speaker_id": "2279",
-      "position_frames": 79992
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-      "start_time": 15.225666454056222
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-  "foreground_events": [
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-      "duration": 1.7703174603174603,
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2279/cough/0067.wav",
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-      "start_time": 31.28026079493196,
-      "speaker_id": "2279"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009243.json b/conversations/conv_009243.json
deleted file mode 100644
index 8e1fb304a30b661ef68bf382f50ff89a14595808..0000000000000000000000000000000000000000
--- a/conversations/conv_009243.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
-      "end_time": 3.671091606380892,
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-      "duration_frames": 58737,
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-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.341725850401228,
-      "end_time": 9.978405905664909,
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-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2568-156115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156115.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.140320094104888,
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-      "utterance_id": "7357-94126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.05255768921593,
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-      "utterance_id": "2568-156118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156118.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.89027093486051,
-      "end_time": 32.0,
-      "duration": 5.10972906513949,
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-      "duration_frames": 81755,
-      "overlap": false,
-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 90186
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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-    {
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-      "speaker_id": "7357"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
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-    {
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-      "speaker_id": "107"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009244.json b/conversations/conv_009244.json
deleted file mode 100644
index eaae28165802393cc36525eedf3e75db853f023e..0000000000000000000000000000000000000000
--- a/conversations/conv_009244.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-122804.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-122804.flac |",
-      "real_speaker_id": "313",
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-291500.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
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-    {
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-      "start_time": 18.525485499520844,
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-      "utterance_id": "1968-145732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
-      "position_frames": 68021
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.75611009067054,
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-      "overlap": false,
-      "utterance_id": "7255-281336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-281336.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 2.5751449978859995,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-122804.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 129192
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "start_time": 7.278467285910613
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "7255"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1968/laugh/0066.wav",
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-      "start_time": 24.084930124650498,
-      "speaker_id": "1968"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7255/laugh/0085.wav",
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-      "speaker_id": "7255"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/313/laugh/0094.wav",
-      "duration": 1.56,
-      "start_time": 29.950786719112013,
-      "speaker_id": "313"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009252.json b/conversations/conv_009252.json
deleted file mode 100644
index 1376a266a8cb3097c4f4ea52dde43f836e1501f6..0000000000000000000000000000000000000000
--- a/conversations/conv_009252.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "699-132882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132882.flac |",
-      "real_speaker_id": "699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.6923402923064215,
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-      "utterance_id": "7335-290365",
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-      "real_speaker_id": "7335",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "7335-290365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7335-290365.flac |",
-      "real_speaker_id": "7335",
-      "position_frames": 106004
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.434135170356768,
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-      "real_speaker_id": "699",
-      "position_frames": 82819
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 67849
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7335/laugh/0028.wav",
-      "duration": 0.6416320095121822,
-      "start_time": 9.716406153323264,
-      "speaker_id": "7335"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/319/laugh/0030.wav",
-      "duration": 1.3757821031249986,
-      "start_time": 18.42840377649204,
-      "speaker_id": "319"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/699/laugh/0031.wav",
-      "duration": 1.32,
-      "start_time": 28.94766046566934,
-      "speaker_id": "699"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009255.json b/conversations/conv_009255.json
deleted file mode 100644
index feab3e2d01bab4bedc591d9f7b3e43add0425ef9..0000000000000000000000000000000000000000
--- a/conversations/conv_009255.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.2307588783739565,
-      "duration": 5.2307588783739565,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6233-61743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61743.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.278678134972158,
-      "end_time": 11.051887933138032,
-      "duration": 5.773209798165873,
-      "start_frame": 84458,
-      "duration_frames": 92371,
-      "overlap": true,
-      "utterance_id": "6233-61743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61743.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 83692
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.867904438324082,
-      "end_time": 17.83148967071843,
-      "duration": 4.963585232394347,
-      "start_frame": 205886,
-      "duration_frames": 79417,
-      "overlap": false,
-      "utterance_id": "718-129597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129597.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.317922664083714,
-      "end_time": 24.189101776643987,
-      "duration": 5.871179112560275,
-      "start_frame": 293086,
-      "duration_frames": 93938,
-      "overlap": false,
-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.051597067245947,
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-      "duration": 3.0600202655208055,
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-      "duration_frames": 48960,
-      "overlap": true,
-      "utterance_id": "6233-61742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61742.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.678986628660326,
-      "end_time": 32.0,
-      "duration": 3.3210133713396743,
-      "start_frame": 458863,
-      "duration_frames": 53136,
-      "overlap": false,
-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 93938
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/718/laugh/0060.wav",
-      "duration": 1.28,
-      "start_time": 17.90848017016505,
-      "speaker_id": "718"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009259.json b/conversations/conv_009259.json
deleted file mode 100644
index 8541506264c97679c6b94e62f8a88d8d54f38c47..0000000000000000000000000000000000000000
--- a/conversations/conv_009259.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.518672897252791,
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-      "utterance_id": "5489-65803",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-65803.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.484245387811576,
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-      "utterance_id": "6575-67592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "7360-86712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7360-86712.flac |",
-      "real_speaker_id": "7360",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.309734911734605,
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-      "duration_frames": 94766,
-      "overlap": false,
-      "utterance_id": "6575-67592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 74386
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.992564731363327,
-      "end_time": 27.458133059961387,
-      "duration": 6.46556832859806,
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-      "duration_frames": 103449,
-      "overlap": true,
-      "utterance_id": "5489-65803",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-65803.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 72298
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.998843407606998,
-      "end_time": 32.0,
-      "duration": 3.001156592393002,
-      "start_frame": 463981,
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-      "overlap": false,
-      "utterance_id": "7360-86712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7360-86712.flac |",
-      "real_speaker_id": "7360",
-      "position_frames": 61425
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009263.json b/conversations/conv_009263.json
deleted file mode 100644
index 5d7f591926748a1c8a8cb37aa9d451e51805c290..0000000000000000000000000000000000000000
--- a/conversations/conv_009263.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.990886799137037,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.230862237453535,
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-      "utterance_id": "8629-261139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261139.flac |",
-      "real_speaker_id": "8629",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 82552
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.366734404312227,
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-      "utterance_id": "8629-261139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261139.flac |",
-      "real_speaker_id": "8629",
-      "position_frames": 63573
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.943594375416065,
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 150074
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.247941811999485,
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-      "overlap": false,
-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009275.json b/conversations/conv_009275.json
deleted file mode 100644
index 9684d66913b9431cf9a1fcdd923339ae40eb427b..0000000000000000000000000000000000000000
--- a/conversations/conv_009275.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2272-152265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152265.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.320470111949672,
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-      "duration_frames": 81859,
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-      "utterance_id": "6064-300880",
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-      "real_speaker_id": "6064",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "663-128991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128991.flac |",
-      "real_speaker_id": "663",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
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-  "paralinguistic_events": [
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-      "speaker_id": "6064"
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-      "duration": 1.52,
-      "start_time": 17.39189372589994,
-      "speaker_id": "663"
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-      "event_class": "cough",
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-      "start_time": 12.499910162642228,
-      "speaker_id": "663"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/663/laugh/0053.wav",
-      "duration": 0.7697671330359535,
-      "start_time": 30.09492148038641,
-      "speaker_id": "663"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/663/cough/0015.wav",
-      "duration": 0.44494468464903614,
-      "start_time": 27.742797166020832,
-      "speaker_id": "663"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009278.json b/conversations/conv_009278.json
deleted file mode 100644
index 0872feb91c84577ed1ea6294fc2d5e9a3a27cd7d..0000000000000000000000000000000000000000
--- a/conversations/conv_009278.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.177341940250181,
-      "duration": 4.177341940250181,
-      "start_frame": 0,
-      "duration_frames": 66837,
-      "overlap": false,
-      "utterance_id": "5567-22441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22441.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.710490380329564,
-      "end_time": 9.416151462974229,
-      "duration": 4.7056610826446645,
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-      "duration_frames": 75290,
-      "overlap": false,
-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.939628890078229,
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-      "overlap": false,
-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 75290
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.406092532093446,
-      "end_time": 23.20734891136257,
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-      "overlap": false,
-      "utterance_id": "1474-172821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-172821.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.650731967495847,
-      "end_time": 27.91086604748596,
-      "duration": 4.260134079990115,
-      "start_frame": 378411,
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-      "overlap": false,
-      "utterance_id": "5567-22441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22441.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 66837
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.498730885353556,
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-      "duration": 3.501269114646444,
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-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 186287
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
-      "duration": 2.249795918367347,
-      "start_time": 9.51547485213433
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5567/cough/0049.wav",
-      "duration": 1.12,
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-      "speaker_id": "5567"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3025/cough/0104.wav",
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-      "start_time": 9.4799637954251,
-      "speaker_id": "3025"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009279.json b/conversations/conv_009279.json
deleted file mode 100644
index 1196c89192b23a11200906c2dbcf23f60a520060..0000000000000000000000000000000000000000
--- a/conversations/conv_009279.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-150468.flac |",
-      "real_speaker_id": "705",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-150468.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-167610.flac |",
-      "real_speaker_id": "705",
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-    {
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-      "start_time": 15.644214791808079,
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-      "utterance_id": "2273-152363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2273-152363.flac |",
-      "real_speaker_id": "2273",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "705-167610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-167610.flac |",
-      "real_speaker_id": "705",
-      "position_frames": 74996
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "899-126233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126233.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009280.json b/conversations/conv_009280.json
deleted file mode 100644
index b1090029c8fa89edfe07d50291dcc226eeffc9c0..0000000000000000000000000000000000000000
--- a/conversations/conv_009280.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5809-58763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-58763.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.725884077021352,
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-      "real_speaker_id": "6072",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-58763.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 102132
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.864738696246299,
-      "end_time": 21.194248613161115,
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-      "start_frame": 253835,
-      "duration_frames": 85272,
-      "overlap": false,
-      "utterance_id": "6072-54656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6072-54656.flac |",
-      "real_speaker_id": "6072",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.940319411229609,
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-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_009296.json b/conversations/conv_009296.json
deleted file mode 100644
index e55fabe3954f73521b63e65639f4bdcb34e76db3..0000000000000000000000000000000000000000
--- a/conversations/conv_009296.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.450543578935106,
-      "duration": 5.450543578935106,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2416-152139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.6636011482131146,
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-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
-      "real_speaker_id": "2843",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.959587611842885,
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-      "overlap": false,
-      "utterance_id": "753-150477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-150477.flac |",
-      "real_speaker_id": "753",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2416/laugh/0092.wav",
-      "duration": 0.9747212210430243,
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-      "speaker_id": "2416"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2416/cough/0059.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "2416"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2843/cough/0034.wav",
-      "duration": 0.4065515402490277,
-      "start_time": 16.712154308743685,
-      "speaker_id": "2843"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/753/cough/0153.wav",
-      "duration": 0.38088237366432254,
-      "start_time": 25.05402734773966,
-      "speaker_id": "753"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/753/laugh/0025.wav",
-      "duration": 0.7135803017689424,
-      "start_time": 30.154342079377592,
-      "speaker_id": "753"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009301.json b/conversations/conv_009301.json
deleted file mode 100644
index c7293a3f3ecdbc2daaab042ca9646784077a9dd0..0000000000000000000000000000000000000000
--- a/conversations/conv_009301.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.300714746509274,
-      "duration": 5.300714746509274,
-      "start_frame": 0,
-      "duration_frames": 84811,
-      "overlap": false,
-      "utterance_id": "14-212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-212.flac |",
-      "real_speaker_id": "14",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.411903599916165,
-      "end_time": 12.372738805231737,
-      "duration": 6.960835205315572,
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-      "duration_frames": 111373,
-      "overlap": false,
-      "utterance_id": "2288-139962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2288-139962.flac |",
-      "real_speaker_id": "2288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.845722842172759,
-      "end_time": 19.44294252553869,
-      "duration": 5.597219683365931,
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-      "overlap": false,
-      "utterance_id": "3060-163540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.599471135253836,
-      "end_time": 27.20421959248533,
-      "duration": 6.604748457231495,
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-      "duration_frames": 105675,
-      "overlap": false,
-      "utterance_id": "14-212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-212.flac |",
-      "real_speaker_id": "14",
-      "position_frames": 84811
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.758285903865993,
-      "end_time": 32.0,
-      "duration": 4.241714096134007,
-      "start_frame": 444132,
-      "duration_frames": 67867,
-      "overlap": false,
-      "utterance_id": "2288-155711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2288-155711.flac |",
-      "real_speaker_id": "2288",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 2.7901675076411023,
-      "start_time": 25.257253203542096
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
-      "duration": 2.188775510204082,
-      "start_time": 27.571320120940246
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2288/cough/0072.wav",
-      "duration": 0.5930381135038514,
-      "start_time": 12.561082807298199,
-      "speaker_id": "2288"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/14/laugh/0044.wav",
-      "duration": 1.322133832677923,
-      "start_time": 27.472544766256245,
-      "speaker_id": "14"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009306.json b/conversations/conv_009306.json
deleted file mode 100644
index 5d0078f869ca57d07bcee58f5b08edb107877b5c..0000000000000000000000000000000000000000
--- a/conversations/conv_009306.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.660346945569218,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145715.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.283709160538761,
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-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 74388
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.82414402108836,
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-      "duration": 5.152706804820502,
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-      "duration_frames": 82443,
-      "overlap": false,
-      "utterance_id": "1898-145702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145702.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.154913508897636,
-      "end_time": 27.403291074912836,
-      "duration": 5.2483775660152,
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-      "duration_frames": 83974,
-      "overlap": false,
-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 171856
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.31893308937827,
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-      "duration": 3.6810669106217304,
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-      "duration_frames": 58897,
-      "overlap": false,
-      "utterance_id": "1898-145715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145715.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 60292
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1898/laugh/0065.wav",
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-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 15.574515821867525,
-      "speaker_id": "1898"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009310.json b/conversations/conv_009310.json
deleted file mode 100644
index 97ce11953a35ac93f72610cac9519dcd7179d4a1..0000000000000000000000000000000000000000
--- a/conversations/conv_009310.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4680-16026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16026.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-71414.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.87014186599417,
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-      "utterance_id": "1166-14986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-14986.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.137463748968063,
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-      "utterance_id": "1166-14986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-14986.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 90755
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4680-16026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16026.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 81887
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009317.json b/conversations/conv_009317.json
deleted file mode 100644
index c5e031ad0dcdbc36db4a7f6bcc23f6f42c17ab2d..0000000000000000000000000000000000000000
--- a/conversations/conv_009317.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.517141709270046,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.890318607368508,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.780135794069254,
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-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
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-      "position_frames": 74296
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
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-    {
-      "event_class": "Frying",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1773/laugh/0095.wav",
-      "duration": 0.7856375069155342,
-      "start_time": 9.581254638393961,
-      "speaker_id": "1773"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/408/cough/0018.wav",
-      "duration": 0.8849774918129127,
-      "start_time": 13.864359664645438,
-      "speaker_id": "408"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1018/cough/0026.wav",
-      "duration": 0.514385325497052,
-      "start_time": 26.191320468915908,
-      "speaker_id": "1018"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/408/laugh/0021.wav",
-      "duration": 0.9908049255233347,
-      "start_time": 30.046136011563753,
-      "speaker_id": "408"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/408/cough/0069.wav",
-      "duration": 0.6695463219656292,
-      "start_time": 31.33045367803437,
-      "speaker_id": "408"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009326.json b/conversations/conv_009326.json
deleted file mode 100644
index 376582d181a98cc2cdf32d14a6652ec7d0509720..0000000000000000000000000000000000000000
--- a/conversations/conv_009326.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6834789337066063,
-      "duration": 3.6834789337066063,
-      "start_frame": 0,
-      "duration_frames": 58935,
-      "overlap": false,
-      "utterance_id": "1970-26100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-26100.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.220329081122171,
-      "end_time": 9.36930964724125,
-      "duration": 5.1489805661190795,
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-      "utterance_id": "4179-20567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4179-20567.flac |",
-      "real_speaker_id": "4179",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.567151425836824,
-      "end_time": 15.719095436753356,
-      "duration": 6.151944010916533,
-      "start_frame": 153074,
-      "duration_frames": 98431,
-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.175855289605778,
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-      "duration_frames": 50320,
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-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 98431
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.970674065822582,
-      "end_time": 23.843530838967766,
-      "duration": 3.872856773145183,
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-      "overlap": false,
-      "utterance_id": "1970-10594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-10594.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.29112203883551,
-      "end_time": 27.95150680451259,
-      "duration": 3.6603847656770805,
-      "start_frame": 388657,
-      "duration_frames": 58566,
-      "overlap": true,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 148751
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.159639060769255,
-      "end_time": 32.0,
-      "duration": 2.840360939230745,
-      "start_frame": 466554,
-      "duration_frames": 45445,
-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 207317
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
-      "duration": 3.5770665345147754,
-      "start_time": 21.168824814935757
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_1.wav",
-      "duration": 0.6720181405895692,
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4179/laugh/0053.wav",
-      "duration": 1.52,
-      "start_time": 5.80005114708345,
-      "speaker_id": "4179"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4179/cough/0006.wav",
-      "duration": 0.4251722917202709,
-      "start_time": 9.51796947612795,
-      "speaker_id": "4179"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/laugh/0068.wav",
-      "duration": 1.24,
-      "start_time": 13.19914973966036,
-      "speaker_id": "2741"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/cough/0110.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/laugh/0068.wav",
-      "duration": 1.18506368332717,
-      "start_time": 19.587658533816292,
-      "speaker_id": "2741"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/laugh/0028.wav",
-      "duration": 1.52,
-      "start_time": 27.966248882535478,
-      "speaker_id": "2741"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009330.json b/conversations/conv_009330.json
deleted file mode 100644
index 9484b0bb2ba38b953658e8903041774d830f33a2..0000000000000000000000000000000000000000
--- a/conversations/conv_009330.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.44770863250855,
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-      "start_frame": 0,
-      "duration_frames": 87163,
-      "overlap": false,
-      "utterance_id": "7276-92427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.0638578186377545,
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-      "duration": 5.414018955417898,
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-      "overlap": false,
-      "utterance_id": "7276-92427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 87163
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.369684945569452,
-      "end_time": 17.43310497356768,
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-      "duration_frames": 97014,
-      "overlap": true,
-      "utterance_id": "2952-407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-407.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.503771061865717,
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-      "start_frame": 296060,
-      "duration_frames": 63558,
-      "overlap": false,
-      "utterance_id": "5781-52134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52134.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.740372157892136,
-      "end_time": 28.50555169937258,
-      "duration": 5.765179541480448,
-      "start_frame": 363845,
-      "duration_frames": 92242,
-      "overlap": false,
-      "utterance_id": "7276-284424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.223782456721562,
-      "end_time": 32.0,
-      "duration": 2.776217543278438,
-      "start_frame": 467580,
-      "duration_frames": 44419,
-      "overlap": false,
-      "utterance_id": "2952-408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-408.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
-      "duration": 4.394485904424277,
-      "start_time": 21.156559491150443
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7276/laugh/0113.wav",
-      "duration": 0.723919596617058,
-      "start_time": 0,
-      "speaker_id": "7276"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2952/cough/0080.wav",
-      "duration": 0.40317054455080364,
-      "start_time": 10.90083369372608,
-      "speaker_id": "2952"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7276/laugh/0047.wav",
-      "duration": 0.6632442210571172,
-      "start_time": 22.7459064441947,
-      "speaker_id": "7276"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7276/cough/0017.wav",
-      "duration": 0.503709635582699,
-      "start_time": 26.2518777182612,
-      "speaker_id": "7276"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2952/laugh/0067.wav",
-      "duration": 0.7850111215045275,
-      "start_time": 28.229949153020822,
-      "speaker_id": "2952"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009340.json b/conversations/conv_009340.json
deleted file mode 100644
index 73debdc3c87ae9d49a4703b57286dd85ed09e417..0000000000000000000000000000000000000000
--- a/conversations/conv_009340.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.517012263589945,
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-      "start_frame": 0,
-      "duration_frames": 88272,
-      "overlap": false,
-      "utterance_id": "5164-19197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-19197.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.31074274865466,
-      "end_time": 10.147731857623212,
-      "duration": 3.8369891089685515,
-      "start_frame": 100971,
-      "duration_frames": 61391,
-      "overlap": false,
-      "utterance_id": "2694-28891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28891.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5164-26980",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-26980.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.992373146293625,
-      "end_time": 20.122116060796124,
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-      "start_frame": 239877,
-      "duration_frames": 82075,
-      "overlap": false,
-      "utterance_id": "836-130900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-130900.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.568519901589095,
-      "end_time": 27.545949439701204,
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-      "start_frame": 329096,
-      "duration_frames": 111638,
-      "overlap": false,
-      "utterance_id": "2694-28891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28891.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 61391
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.167148905179754,
-      "end_time": 32.0,
-      "duration": 3.8328510948202457,
-      "start_frame": 450674,
-      "duration_frames": 61325,
-      "overlap": false,
-      "utterance_id": "836-130900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-130900.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 82075
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_1.wav",
-      "duration": 2.154739229024943,
-      "start_time": 24.426742473455047
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5164/cough/0103.wav",
-      "duration": 1.0125963502233974,
-      "start_time": 0,
-      "speaker_id": "5164"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2694/laugh/0122.wav",
-      "duration": 0.9175148915460619,
-      "start_time": 5.360797573269663,
-      "speaker_id": "2694"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2694/cough/0068.wav",
-      "duration": 1.1937945141973931,
-      "start_time": 10.302160479894889,
-      "speaker_id": "2694"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5164/laugh/0023.wav",
-      "duration": 0.7491801482910831,
-      "start_time": 11.467976112621873,
-      "speaker_id": "5164"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/836/laugh/0072.wav",
-      "duration": 0.7388494721595067,
-      "start_time": 27.218748153284675,
-      "speaker_id": "836"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009347.json b/conversations/conv_009347.json
deleted file mode 100644
index 2f01dabf22d3988a37dbbfd525ad9d49f1a2843c..0000000000000000000000000000000000000000
--- a/conversations/conv_009347.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.030395364074817,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.097720744501911,
-      "duration": 4.097720744501911,
-      "start_frame": 0,
-      "duration_frames": 65563,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
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-      "duration": 1.36,
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\ No newline at end of file
diff --git a/conversations/conv_009351.json b/conversations/conv_009351.json
deleted file mode 100644
index 1fc443ac419a9f1e4a9e02a83581edb79f325084..0000000000000000000000000000000000000000
--- a/conversations/conv_009351.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 103179
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
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\ No newline at end of file
diff --git a/conversations/conv_009356.json b/conversations/conv_009356.json
deleted file mode 100644
index 6fdc5953d2f5601a475c18f192f85f644afbb2e6..0000000000000000000000000000000000000000
--- a/conversations/conv_009356.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "8666",
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-      "utterance_id": "201-127786",
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\ No newline at end of file
diff --git a/conversations/conv_009367.json b/conversations/conv_009367.json
deleted file mode 100644
index 6d99b1105032e61c1c19a83b17ec1cf029e7c799..0000000000000000000000000000000000000000
--- a/conversations/conv_009367.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "2090",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2090-151646.flac |",
-      "real_speaker_id": "2090",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "position_frames": 104342
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_009371.json b/conversations/conv_009371.json
deleted file mode 100644
index 717df3966195bd2a9895e90340cd59f37d50979a..0000000000000000000000000000000000000000
--- a/conversations/conv_009371.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-62813.flac |",
-      "real_speaker_id": "6402",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-295710.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 25.120286472789477,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105213.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 91601
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "laugh",
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-      "speaker_id": "6402"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009384.json b/conversations/conv_009384.json
deleted file mode 100644
index 8c72976cafe1afcc9fec925da4e77e3012173198..0000000000000000000000000000000000000000
--- a/conversations/conv_009384.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.07756401728318,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.8366788935221905,
-      "duration": 4.8366788935221905,
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-      "overlap": false,
-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.310286391016657,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7594-91192.flac |",
-      "real_speaker_id": "7594",
-      "position_frames": 0
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-      "start_time": 11.881916881199247,
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-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 77386
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1472-285314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1472-285314.flac |",
-      "real_speaker_id": "1472",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.650821440894827,
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-      "utterance_id": "7594-101832",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7594-101832.flac |",
-      "real_speaker_id": "7594",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.697737341291607,
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-      "utterance_id": "1472-285314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1472-285314.flac |",
-      "real_speaker_id": "1472",
-      "position_frames": 48208
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7594-81881.flac |",
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-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-      "speaker_id": "1472"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009385.json b/conversations/conv_009385.json
deleted file mode 100644
index 127a61a56e7da698270e5d6b4fd52b46c718f28b..0000000000000000000000000000000000000000
--- a/conversations/conv_009385.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.751767282458452,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7073-114963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
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-      "start_time": 6.109099416035755,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
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-      "real_speaker_id": "1723",
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-      "segment_id": "seg0004",
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-      "start_time": 22.3005965959195,
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-      "utterance_id": "5740-97593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97593.flac |",
-      "real_speaker_id": "5740",
-      "position_frames": 66972
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7073-114963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 158070
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-  "background_events": [
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_009388.json b/conversations/conv_009388.json
deleted file mode 100644
index 409183d36917d459531eb324facaa4de3810bf22..0000000000000000000000000000000000000000
--- a/conversations/conv_009388.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2195-150901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150901.flac |",
-      "real_speaker_id": "2195",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7558-89894.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150901.flac |",
-      "real_speaker_id": "2195",
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-      "real_speaker_id": "7558",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "7135-80033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7135-80033.flac |",
-      "real_speaker_id": "7135",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2195-150894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150894.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2195/laugh/0009.wav",
-      "duration": 1.0,
-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7558/laugh/0025.wav",
-      "duration": 1.56,
-      "start_time": 18.91783229639403,
-      "speaker_id": "7558"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009392.json b/conversations/conv_009392.json
deleted file mode 100644
index af098e4a7ba2e5f63880f1c8a5639beb09e8619c..0000000000000000000000000000000000000000
--- a/conversations/conv_009392.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3638-758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-758.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.565239185457345,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.63829649248863,
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-      "duration": 2.3617035075113684,
-      "start_frame": 474212,
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-      "overlap": false,
-      "utterance_id": "3638-758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-758.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 101308
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2078510739204202,
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-      "speaker_id": "3638"
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-    {
-      "event_class": "cough",
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-      "start_time": 18.26907675918336,
-      "speaker_id": "3638"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009395.json b/conversations/conv_009395.json
deleted file mode 100644
index a6b893060904ecae343abf1686a129abdb020684..0000000000000000000000000000000000000000
--- a/conversations/conv_009395.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.74044041468188,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.4576993074193565,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1323-138548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138548.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.911200085471916,
-      "end_time": 11.863755612481842,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-89644.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.574669496885935,
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-      "overlap": true,
-      "utterance_id": "6294-85684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 17.19564509380574,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-89644.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 95240
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6294-86679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-86679.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 0
-    },
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-      "speaker_id": 2,
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-      "duration_frames": 28290,
-      "overlap": true,
-      "utterance_id": "1323-138548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138548.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 87323
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7079/laugh/0070.wav",
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-      "start_time": 16.486655423726543,
-      "speaker_id": "7079"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1323/laugh/0108.wav",
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-      "start_time": 31.178354154155343,
-      "speaker_id": "1323"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "1323"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009404.json b/conversations/conv_009404.json
deleted file mode 100644
index 324aad98e853417b41813b01b9950d6c151d9368..0000000000000000000000000000000000000000
--- a/conversations/conv_009404.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.736292131190574,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8534-216567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216567.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.004273034727467,
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-      "utterance_id": "8441-281327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
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-    {
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-      "utterance_id": "8322-276748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.223835161976886,
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-      "utterance_id": "8441-281327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
-      "real_speaker_id": "8441",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8322",
-      "position_frames": 77891
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-    {
-      "segment_id": "seg0005",
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-      "duration": 6.088199712763089,
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-      "utterance_id": "8441-120274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-120274.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8322/laugh/0116.wav",
-      "duration": 1.5,
-      "start_time": 9.23091918704315,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8441/cough/0003.wav",
-      "duration": 1.2,
-      "start_time": 28.9321947734344,
-      "speaker_id": "8441"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009408.json b/conversations/conv_009408.json
deleted file mode 100644
index e560c1e37708dce74ee6cf5b38476db6ebe7d5dc..0000000000000000000000000000000000000000
--- a/conversations/conv_009408.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6763-74798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74798.flac |",
-      "real_speaker_id": "6763",
-      "position_frames": 0
-    },
-    {
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-    {
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-      "utterance_id": "6763-74798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74798.flac |",
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-      "position_frames": 195649
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "2341",
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "real_speaker_id": "2341",
-      "position_frames": 83776
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6763/laugh/0031.wav",
-      "duration": 1.12,
-      "start_time": 13.622857474531758,
-      "speaker_id": "6763"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009412.json b/conversations/conv_009412.json
deleted file mode 100644
index 9644319f442c3060e8ff1a478ace1a0ba4eab45e..0000000000000000000000000000000000000000
--- a/conversations/conv_009412.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.641510987261217,
-      "duration": 4.641510987261217,
-      "start_frame": 0,
-      "duration_frames": 74264,
-      "overlap": false,
-      "utterance_id": "1195-130164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-130164.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.8944227243136025,
-      "end_time": 8.612454368240961,
-      "duration": 3.7180316439273575,
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-      "duration_frames": 59488,
-      "overlap": false,
-      "utterance_id": "1195-37134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-37134.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.769745301848952,
-      "end_time": 14.445424554765866,
-      "duration": 5.675679252916915,
-      "start_frame": 140315,
-      "duration_frames": 90810,
-      "overlap": false,
-      "utterance_id": "1195-37134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-37134.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 59488
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.86786884158272,
-      "end_time": 19.446860179680606,
-      "duration": 4.578991338097884,
-      "start_frame": 237885,
-      "duration_frames": 73263,
-      "overlap": false,
-      "utterance_id": "6145-54683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54683.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.814945335606552,
-      "end_time": 25.389530389326612,
-      "duration": 5.57458505372006,
-      "start_frame": 317039,
-      "duration_frames": 89193,
-      "overlap": false,
-      "utterance_id": "2960-155152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.72599353815358,
-      "end_time": 30.84218674944548,
-      "duration": 5.1161932112919,
-      "start_frame": 411615,
-      "duration_frames": 81859,
-      "overlap": false,
-      "utterance_id": "1195-37134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-37134.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 150298
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.200285930375646,
-      "end_time": 32.0,
-      "duration": 0.7997140696243541,
-      "start_frame": 499204,
-      "duration_frames": 12795,
-      "overlap": false,
-      "utterance_id": "1195-37134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-37134.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 232157
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 20.094646076552976,
-      "start_time": 6.296088936284062
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_5.wav",
-      "duration": 0.5475283446712018,
-      "start_time": 13.838776026185737
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 3.577807311264691,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6145/laugh/0013.wav",
-      "duration": 1.28,
-      "start_time": 16.983294010168724,
-      "speaker_id": "6145"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6145/cough/0060.wav",
-      "duration": 1.2,
-      "start_time": 17.763005625285583,
-      "speaker_id": "6145"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2960/cough/0100.wav",
-      "duration": 0.3047969056888651,
-      "start_time": 25.542291508259357,
-      "speaker_id": "2960"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1195/laugh/0094.wav",
-      "duration": 0.9175712736436179,
-      "start_time": 27.854378111692306,
-      "speaker_id": "1195"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1195/laugh/0080.wav",
-      "duration": 1.6104958397749705,
-      "start_time": 30.38950416022503,
-      "speaker_id": "1195"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009413.json b/conversations/conv_009413.json
deleted file mode 100644
index d6ea17bf7584ee3ff7cb8a7c788912912a5e375b..0000000000000000000000000000000000000000
--- a/conversations/conv_009413.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.2368288430194707,
-      "duration": 3.2368288430194707,
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-      "overlap": false,
-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.105083927039331,
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-      "utterance_id": "2498-134786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134786.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.655249919517589,
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-      "duration": 6.167686718144477,
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-      "duration_frames": 98682,
-      "overlap": false,
-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.401121425915576,
-      "end_time": 23.176640471643122,
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-      "duration_frames": 92408,
-      "overlap": false,
-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.39970225559728,
-      "end_time": 27.97288914403247,
-      "duration": 4.573186888435193,
-      "start_frame": 374395,
-      "duration_frames": 73170,
-      "overlap": false,
-      "utterance_id": "7933-113272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-113272.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.359841902841783,
-      "end_time": 32.0,
-      "duration": 3.640158097158217,
-      "start_frame": 453757,
-      "duration_frames": 58242,
-      "overlap": false,
-      "utterance_id": "2498-134786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134786.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 95142
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_17.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
-      "duration": 1.7517687074829933,
-      "start_time": 21.572340905094926
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7933/laugh/0078.wav",
-      "duration": 1.1568865829126993,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2498/laugh/0033.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "2498"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009424.json b/conversations/conv_009424.json
deleted file mode 100644
index 5cd97d69a4f8454ffce34b630589b789cf2e61a2..0000000000000000000000000000000000000000
--- a/conversations/conv_009424.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.12724528216376,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6286-75355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6286-75355.flac |",
-      "real_speaker_id": "6286",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284268.flac |",
-      "real_speaker_id": "8490",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6286-75355.flac |",
-      "real_speaker_id": "6286",
-      "position_frames": 57002
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.287514790891361,
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-      "utterance_id": "8490-284269",
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-      "real_speaker_id": "8490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.68497543444019,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157471.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.67977863593089,
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-      "duration": 4.845987144539102,
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-      "duration_frames": 77535,
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-      "utterance_id": "2301-134424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-134424.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.242469040095457,
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-      "duration": 0.8847762420683019,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6286-75355.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "start_time": 5.870474475298161,
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2301/laugh/0005.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009428.json b/conversations/conv_009428.json
deleted file mode 100644
index a790fd9d7ca0a5a022543461efaf83c9baa86564..0000000000000000000000000000000000000000
--- a/conversations/conv_009428.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.0629890372002393,
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-      "utterance_id": "6199-80041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-80041.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.5059146243765107,
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-      "segment_id": "seg0002",
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-      "segment_id": "seg0004",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.3925766272415,
-      "end_time": 28.855176378267473,
-      "duration": 4.462599751025975,
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-      "overlap": true,
-      "utterance_id": "8430-172387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172387.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.936276270040292,
-      "end_time": 32.0,
-      "duration": 2.063723729959708,
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-      "utterance_id": "6199-48196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-48196.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 78927
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 7.272813369758682,
-      "speaker_id": "4063"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4063/cough/0058.wav",
-      "duration": 1.241725059917258,
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-      "speaker_id": "4063"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4063/cough/0017.wav",
-      "duration": 1.1054539204724576,
-      "start_time": 18.301396038347175,
-      "speaker_id": "4063"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6199/laugh/0090.wav",
-      "duration": 1.12,
-      "start_time": 28.663598843312208,
-      "speaker_id": "6199"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009432.json b/conversations/conv_009432.json
deleted file mode 100644
index 0f85618f0fd090d5e2cf138841ed8691b8c3b150..0000000000000000000000000000000000000000
--- a/conversations/conv_009432.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.78547214005435,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.267568185691541,
-      "duration": 6.267568185691541,
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-      "overlap": false,
-      "utterance_id": "5242-35921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.700440167027528,
-      "end_time": 11.136908216122517,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125127.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.899352537028054,
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-      "duration": 5.394820926841781,
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-      "duration_frames": 86317,
-      "overlap": false,
-      "utterance_id": "5242-35926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35926.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.678713868698804,
-      "end_time": 23.281695457404282,
-      "duration": 4.602981588705481,
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-      "duration_frames": 73647,
-      "overlap": false,
-      "utterance_id": "501-125128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.62453809937813,
-      "end_time": 27.486588900822852,
-      "duration": 3.86205080144472,
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-      "duration_frames": 61792,
-      "overlap": false,
-      "utterance_id": "7802-104394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104394.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.48228416386227,
-      "end_time": 31.78547214005435,
-      "duration": 3.3031879761920786,
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-      "duration_frames": 52851,
-      "overlap": false,
-      "utterance_id": "501-125127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125127.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 70983
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
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-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/501/cough/0042.wav",
-      "duration": 0.7782926486265384,
-      "start_time": 30.227661142648092,
-      "speaker_id": "501"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009439.json b/conversations/conv_009439.json
deleted file mode 100644
index 2eb19824f890acea39fb72c6bde7c4a8f5c31a04..0000000000000000000000000000000000000000
--- a/conversations/conv_009439.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.348315697869147,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4738-58078",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-58078.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.049525445630773,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32639.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "4738-291945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-291945.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.020987862130745,
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-      "duration": 6.958833840829979,
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-      "duration_frames": 111341,
-      "overlap": false,
-      "utterance_id": "7783-107487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107487.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.19240706963462,
-      "end_time": 31.348315697869147,
-      "duration": 6.1559086282345294,
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-      "overlap": false,
-      "utterance_id": "4738-58078",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-58078.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 92461
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4899/laugh/0012.wav",
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-      "duration": 1.04,
-      "start_time": 13.259811269344388,
-      "speaker_id": "4899"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7783/laugh/0016.wav",
-      "duration": 0.9740272460606172,
-      "start_time": 19.225536997619482,
-      "speaker_id": "7783"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009444.json b/conversations/conv_009444.json
deleted file mode 100644
index 27cd32614b348a3aa8b54c43f5bef54ac4d25b7d..0000000000000000000000000000000000000000
--- a/conversations/conv_009444.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.430862344485598,
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-      "duration_frames": 70893,
-      "overlap": false,
-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.66323899903809,
-      "end_time": 9.5655342764326,
-      "duration": 4.9022952773945105,
-      "start_frame": 74611,
-      "duration_frames": 78436,
-      "overlap": false,
-      "utterance_id": "7046-80695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-80695.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.830884197516223,
-      "end_time": 16.479086517682063,
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-      "start_frame": 157294,
-      "duration_frames": 106371,
-      "overlap": false,
-      "utterance_id": "6754-283198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-283198.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.96421841452347,
-      "end_time": 23.64576597496445,
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-      "duration_frames": 106904,
-      "overlap": false,
-      "utterance_id": "7046-83701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-83701.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.09585885877336,
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-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 70893
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.3601145380471,
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-      "duration": 1.6398854619529004,
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-      "utterance_id": "6754-107485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107485.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
-      "duration": 12.746889604744563,
-      "start_time": 9.414619152910445
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8401/laugh/0001.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7046/laugh/0074.wav",
-      "duration": 1.2224459094634599,
-      "start_time": 3.2864981539869476,
-      "speaker_id": "7046"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6754/laugh/0079.wav",
-      "duration": 1.1503379403366059,
-      "start_time": 16.77864005779679,
-      "speaker_id": "6754"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6754/cough/0073.wav",
-      "duration": 0.9306047335648295,
-      "start_time": 8.885542092580767,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8401/laugh/0029.wav",
-      "duration": 1.44,
-      "start_time": 25.251909448345778,
-      "speaker_id": "8401"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009445.json b/conversations/conv_009445.json
deleted file mode 100644
index 3097e02b9352da1638ebad2ded57c9c61c93da25..0000000000000000000000000000000000000000
--- a/conversations/conv_009445.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.52475844795392,
-      "duration": 4.52475844795392,
-      "start_frame": 0,
-      "duration_frames": 72396,
-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.923747614998907,
-      "end_time": 8.486786060218947,
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-      "overlap": false,
-      "utterance_id": "5333-5083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5333-5083.flac |",
-      "real_speaker_id": "5333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.848937695187397,
-      "end_time": 12.531385778754668,
-      "duration": 3.6824480835672704,
-      "start_frame": 141583,
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-      "real_speaker_id": "5333",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 131315
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 22.668964078647328,
-      "end_time": 28.25595479505437,
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-      "duration_frames": 89391,
-      "overlap": false,
-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.066619236179115,
-      "end_time": 32.0,
-      "duration": 2.9333807638208853,
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-      "utterance_id": "5333-5097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5333-5097.flac |",
-      "real_speaker_id": "5333",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5333/laugh/0043.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7957/laugh/0074.wav",
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-      "start_time": 12.722869919459551,
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-}
\ No newline at end of file
diff --git a/conversations/conv_009449.json b/conversations/conv_009449.json
deleted file mode 100644
index 84bc873f7311a22151baac4edc018f874b9c8edf..0000000000000000000000000000000000000000
--- a/conversations/conv_009449.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.717834524800075,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.254833567717685,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6590-64283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64283.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.633522938611555,
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-      "utterance_id": "78-368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-368.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.861743735041367,
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-      "overlap": false,
-      "utterance_id": "78-368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-368.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 85491
-    },
-    {
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-      "utterance_id": "6590-64282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64282.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.349824222281583,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64285.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 103852,
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-      "utterance_id": "78-369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-369.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
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-      "duration": 1.24,
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-    {
-      "event_class": "cough",
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-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "78"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009453.json b/conversations/conv_009453.json
deleted file mode 100644
index 0bbaaefaae09d0d55784c4f78c0797d4f5ff2cf5..0000000000000000000000000000000000000000
--- a/conversations/conv_009453.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123135.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.1492139034451,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
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-      "position_frames": 76802
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2997",
-      "position_frames": 63781
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-      "segment_id": "seg0005",
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 151241
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/820/laugh/0022.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2997/laugh/0086.wav",
-      "duration": 0.88,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.1,
-      "start_time": 30.9,
-      "speaker_id": "5063"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009465.json b/conversations/conv_009465.json
deleted file mode 100644
index 457062295eadb1ef25ff400687e23308973064cd..0000000000000000000000000000000000000000
--- a/conversations/conv_009465.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "426-122822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122822.flac |",
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-    },
-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "7301-92166",
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-      "real_speaker_id": "7301",
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-    {
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3879/laugh/0027.wav",
-      "duration": 1.1363064560852416,
-      "start_time": 22.067946420929015,
-      "speaker_id": "3879"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009468.json b/conversations/conv_009468.json
deleted file mode 100644
index cd1beac2135c54b71ca855f1da8232c6476aa3ce..0000000000000000000000000000000000000000
--- a/conversations/conv_009468.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.048950485413074,
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-      "overlap": false,
-      "utterance_id": "671-131030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.731615892346636,
-      "end_time": 11.345564017570855,
-      "duration": 4.613948125224218,
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-      "utterance_id": "8765-295000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8765-295000.flac |",
-      "real_speaker_id": "8765",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.907417022307243,
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-      "overlap": true,
-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.516125743457984,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 89093
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.81898963126135,
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-      "utterance_id": "671-131040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.051076201707914,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 188239
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-      "duration": 1.6,
-      "start_time": 0,
-      "speaker_id": "671"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/671/cough/0042.wav",
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-      "event_class": "cough",
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-      "duration": 0.9619628661457915,
-      "start_time": 11.447003194929323,
-      "speaker_id": "8765"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009469.json b/conversations/conv_009469.json
deleted file mode 100644
index 3405e00d59b7e53b457c0694f4d6c620be6af986..0000000000000000000000000000000000000000
--- a/conversations/conv_009469.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6549-71118.flac |",
-      "real_speaker_id": "6549",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.58513982908383,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6549-71118.flac |",
-      "real_speaker_id": "6549",
-      "position_frames": 71714
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125760.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6549-71118.flac |",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009473.json b/conversations/conv_009473.json
deleted file mode 100644
index aee2cbff5b414ed55564cbbeb86328d4f24f40ea..0000000000000000000000000000000000000000
--- a/conversations/conv_009473.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130560.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_009478.json b/conversations/conv_009478.json
deleted file mode 100644
index a3147d359da07cd7b24ec6ab1455d24f225bcc80..0000000000000000000000000000000000000000
--- a/conversations/conv_009478.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1289-288044",
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-      "position_frames": 0
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2504/laugh/0024.wav",
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-      "speaker_id": "2504"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1289/laugh/0106.wav",
-      "duration": 0.729080172103326,
-      "start_time": 29.314888454155348,
-      "speaker_id": "1289"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009481.json b/conversations/conv_009481.json
deleted file mode 100644
index 9809a45835762661ec7ad5918deaf88746f7c95b..0000000000000000000000000000000000000000
--- a/conversations/conv_009481.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6224-34608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-34608.flac |",
-      "real_speaker_id": "6224",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.828852025443725,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-861.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6224-34608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-34608.flac |",
-      "real_speaker_id": "6224",
-      "position_frames": 93910
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.74813427290047,
-      "end_time": 23.82660992673792,
-      "duration": 4.078475653837452,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.384791690919464,
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-      "duration": 4.477465669569992,
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-      "utterance_id": "5123-29120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.508647659107165,
-      "end_time": 32.0,
-      "duration": 2.491352340892835,
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-      "duration_frames": 39861,
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-      "utterance_id": "329-862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 65255
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "6224"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6224/laugh/0124.wav",
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-      "event_class": "laugh",
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-      "start_time": 23.921469017627974,
-      "speaker_id": "329"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009486.json b/conversations/conv_009486.json
deleted file mode 100644
index 0842b50f03d33e648a879e0112eb751034cbb107..0000000000000000000000000000000000000000
--- a/conversations/conv_009486.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8063-274112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274112.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
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-      "utterance_id": "8063-274115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274115.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.24805356615024,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 89152
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.093484516912387,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274116.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.691280840961937,
-      "end_time": 32.0,
-      "duration": 3.3087191590380627,
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-      "duration_frames": 52939,
-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 182825
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 25.36799251240376,
-      "speaker_id": "8063"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009487.json b/conversations/conv_009487.json
deleted file mode 100644
index 94259bbdbeaa2d4488e34b64b0dae2d2277da2be..0000000000000000000000000000000000000000
--- a/conversations/conv_009487.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3864-185125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185125.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
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-      "utterance_id": "3864-185126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185126.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 82717
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.033495133592474,
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-      "utterance_id": "1664-137600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 80576
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_009490.json b/conversations/conv_009490.json
deleted file mode 100644
index 4d25c8db404be8d5d5b972a28a7d536d74f56477..0000000000000000000000000000000000000000
--- a/conversations/conv_009490.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.93938651511202,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1750-135624",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-135624.flac |",
-      "real_speaker_id": "1750",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.113740825266558,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-135624.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7238-91112",
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-    {
-      "segment_id": "seg0003",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7238/cough/0062.wav",
-      "duration": 0.92,
-      "start_time": 11.505620964771088,
-      "speaker_id": "7238"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009497.json b/conversations/conv_009497.json
deleted file mode 100644
index 3b93b2bb62c60508f4d782aad5f155e658f7f453..0000000000000000000000000000000000000000
--- a/conversations/conv_009497.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.428003520325955,
-      "duration": 5.428003520325955,
-      "start_frame": 0,
-      "duration_frames": 86848,
-      "overlap": false,
-      "utterance_id": "8272-279789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.603167870735589,
-      "end_time": 9.057887075228873,
-      "duration": 3.4547192044932844,
-      "start_frame": 89650,
-      "duration_frames": 55275,
-      "overlap": false,
-      "utterance_id": "167-15255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-15255.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.899014640728694,
-      "end_time": 14.259695321364944,
-      "duration": 4.360680680636251,
-      "start_frame": 158384,
-      "duration_frames": 69770,
-      "overlap": false,
-      "utterance_id": "8272-279781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.992244592418212,
-      "end_time": 17.707570151563587,
-      "duration": 3.7153255591453767,
-      "start_frame": 223875,
-      "duration_frames": 59445,
-      "overlap": true,
-      "utterance_id": "167-68704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-68704.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.53887374022329,
-      "end_time": 26.058683650999136,
-      "duration": 6.5198099107758445,
-      "start_frame": 312621,
-      "duration_frames": 104316,
-      "overlap": true,
-      "utterance_id": "8272-279789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 86848
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.49693628611182,
-      "end_time": 32.0,
-      "duration": 5.5030637138881815,
-      "start_frame": 423950,
-      "duration_frames": 88049,
-      "overlap": false,
-      "utterance_id": "167-15255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-15255.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 55275
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
-      "duration": 25.57396457002779,
-      "start_time": 1.2073760372923286
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_12.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/167/cough/0017.wav",
-      "duration": 0.6238604985389006,
-      "start_time": 7.0403795887550356,
-      "speaker_id": "167"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/167/laugh/0022.wav",
-      "duration": 1.094783817586201,
-      "start_time": 16.36911415940886,
-      "speaker_id": "167"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/167/laugh/0072.wav",
-      "duration": 1.44,
-      "start_time": 27.55085218044491,
-      "speaker_id": "167"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/167/cough/0001.wav",
-      "duration": 0.41776695099136535,
-      "start_time": 25.92650628691571,
-      "speaker_id": "167"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009500.json b/conversations/conv_009500.json
deleted file mode 100644
index c69e5ced204cdbc2b47f4a2b6bbd61c5551ceb41..0000000000000000000000000000000000000000
--- a/conversations/conv_009500.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.58307366987855,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.687019752807755,
-      "duration": 5.687019752807755,
-      "start_frame": 0,
-      "duration_frames": 90992,
-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.012908256637678,
-      "end_time": 10.481897643787416,
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-      "utterance_id": "5044-30592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30592.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.358748858686988,
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-      "overlap": false,
-      "utterance_id": "708-129393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.184578339299646,
-      "end_time": 18.23960895816039,
-      "duration": 3.055030618860741,
-      "start_frame": 242953,
-      "duration_frames": 48880,
-      "overlap": false,
-      "utterance_id": "5044-30592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30592.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 71503
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.903555369219497,
-      "end_time": 22.14296859438897,
-      "duration": 3.2394132251694736,
-      "start_frame": 302456,
-      "duration_frames": 51830,
-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 90992
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.254196608500806,
-      "end_time": 27.422565566979642,
-      "duration": 5.168368958478839,
-      "start_frame": 356067,
-      "duration_frames": 82693,
-      "overlap": false,
-      "utterance_id": "708-129393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
-      "position_frames": 54130
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.630202845562994,
-      "end_time": 31.58307366987855,
-      "duration": 3.9528708243155553,
-      "start_frame": 442083,
-      "duration_frames": 63245,
-      "overlap": false,
-      "utterance_id": "5044-30592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30592.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 120383
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_6.wav",
-      "duration": 0.11859410430839003,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/708/laugh/0029.wav",
-      "duration": 0.7964790088197384,
-      "start_time": 14.87095767936538,
-      "speaker_id": "708"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5044/laugh/0035.wav",
-      "duration": 0.6898931337002516,
-      "start_time": 29.40857854208913,
-      "speaker_id": "5044"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009501.json b/conversations/conv_009501.json
deleted file mode 100644
index 8defd58a700ef3fb66582910a0113e53650f8e50..0000000000000000000000000000000000000000
--- a/conversations/conv_009501.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 61799,
-      "overlap": false,
-      "utterance_id": "2289-152254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152254.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.175329655024129,
-      "end_time": 7.966577215400138,
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-      "overlap": true,
-      "utterance_id": "4979-26563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26563.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.357217710032423,
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-      "utterance_id": "2289-152258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152258.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.553523720931487,
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-      "overlap": false,
-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.036393697526105,
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-      "utterance_id": "2289-152257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152257.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.415244654394378,
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-      "duration_frames": 89241,
-      "overlap": false,
-      "utterance_id": "4979-26551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26551.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.473514854297,
-      "end_time": 32.0,
-      "duration": 2.526485145702999,
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-      "duration_frames": 40423,
-      "overlap": false,
-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 79816
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7766/laugh/0114.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7766/laugh/0103.wav",
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-      "start_time": 31.16,
-      "speaker_id": "7766"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7766/cough/0113.wav",
-      "duration": 1.28,
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-}
\ No newline at end of file
diff --git a/conversations/conv_009516.json b/conversations/conv_009516.json
deleted file mode 100644
index 4288cce68e50e17e0ddd80b20deac094cc1aedba..0000000000000000000000000000000000000000
--- a/conversations/conv_009516.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.3729654953111385,
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-      "utterance_id": "1168-134958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8786-276749",
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-      "real_speaker_id": "8786",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4111-184447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "event_class": "laugh",
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-      "speaker_id": "8786"
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-      "speaker_id": "1168"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009520.json b/conversations/conv_009520.json
deleted file mode 100644
index 67896a1b9c74b42c344715ab4263449493540433..0000000000000000000000000000000000000000
--- a/conversations/conv_009520.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7337-89742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-89742.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.173526088642332,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "40-222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.84706011486696,
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-      "utterance_id": "40-222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 56259
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.692091033044246,
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-      "duration": 4.042983526050885,
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-      "duration_frames": 64687,
-      "overlap": true,
-      "utterance_id": "7337-89742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-89742.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 107180
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.20980243530713,
-      "end_time": 32.0,
-      "duration": 1.7901975646928712,
-      "start_frame": 483356,
-      "duration_frames": 28643,
-      "overlap": false,
-      "utterance_id": "40-222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 164803
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6925/laugh/0004.wav",
-      "duration": 1.32,
-      "start_time": 5.810721715695273,
-      "speaker_id": "6925"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7337/laugh/0062.wav",
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-      "speaker_id": "7337"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009536.json b/conversations/conv_009536.json
deleted file mode 100644
index 7ffc47cb289290a64f5155f53c58984015f485dd..0000000000000000000000000000000000000000
--- a/conversations/conv_009536.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291967.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1844-145713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-145713.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 78327
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1844-145713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-145713.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 79796
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 140015
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.19001566938367,
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-      "start_frame": 499040,
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-      "overlap": false,
-      "utterance_id": "1367-291967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291967.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 95463
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1844/cough/0041.wav",
-      "duration": 0.96,
-      "start_time": 19.88368542974689,
-      "speaker_id": "1844"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2997/laugh/0118.wav",
-      "duration": 0.84,
-      "start_time": 24.35159726893942,
-      "speaker_id": "2997"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009541.json b/conversations/conv_009541.json
deleted file mode 100644
index 5ddb6c39448058e715753dc26d292997d1922e0a..0000000000000000000000000000000000000000
--- a/conversations/conv_009541.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3664-11714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-11714.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.282186875885835,
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-      "utterance_id": "7995-280250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-280250.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "3664-11714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-11714.flac |",
-      "real_speaker_id": "3664",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
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-      "real_speaker_id": "7995",
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-    {
-      "segment_id": "seg0005",
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-11714.flac |",
-      "real_speaker_id": "3664",
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-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "3664-178366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-178366.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 0
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-    {
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-      "event_class": "Blender",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3664/laugh/0035.wav",
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-      "speaker_id": "3664"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009556.json b/conversations/conv_009556.json
deleted file mode 100644
index 7f7fd2b63e995391db4351ddb32f2ca6be6769dd..0000000000000000000000000000000000000000
--- a/conversations/conv_009556.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98877.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "1448",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26947.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009557.json b/conversations/conv_009557.json
deleted file mode 100644
index ff9949a876ebf4353bf70587cbaf345c296fdbf6..0000000000000000000000000000000000000000
--- a/conversations/conv_009557.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6437-66172.flac |",
-      "real_speaker_id": "6437",
-      "position_frames": 54572
-    },
-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009561.json b/conversations/conv_009561.json
deleted file mode 100644
index 788da2186582d0074937ddc1e552d39a691d3411..0000000000000000000000000000000000000000
--- a/conversations/conv_009561.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "real_speaker_id": "4791",
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-      "real_speaker_id": "3744",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009577.json b/conversations/conv_009577.json
deleted file mode 100644
index 5685b4e677898394258c96cfb5c9c33eeef3ef86..0000000000000000000000000000000000000000
--- a/conversations/conv_009577.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.548208245482364,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "4225"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009582.json b/conversations/conv_009582.json
deleted file mode 100644
index 5c88737076f911755063ae266843e9754a3e4952..0000000000000000000000000000000000000000
--- a/conversations/conv_009582.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
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-      "utterance_id": "7762-280917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 98825
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
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-      "position_frames": 184480
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_6.wav",
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-      "duration": 1.2,
-      "start_time": 29.3784820545064,
-      "speaker_id": "7762"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009585.json b/conversations/conv_009585.json
deleted file mode 100644
index d02f26e635b471c1d31a533bdedf1d4fddca2f9d..0000000000000000000000000000000000000000
--- a/conversations/conv_009585.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151982.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151982.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-34596.flac |",
-      "real_speaker_id": "6610",
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-      "real_speaker_id": "3196",
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-      "segment_id": "seg0005",
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-      "utterance_id": "6610-34596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-34596.flac |",
-      "real_speaker_id": "6610",
-      "position_frames": 57976
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "speaker_id": "6610"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009593.json b/conversations/conv_009593.json
deleted file mode 100644
index 22025fbdaa9c7a302fb8ab387680d67d68d4f162..0000000000000000000000000000000000000000
--- a/conversations/conv_009593.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_009594.json b/conversations/conv_009594.json
deleted file mode 100644
index 95edfa24b753ac678f6c008d3ece755b7788e210..0000000000000000000000000000000000000000
--- a/conversations/conv_009594.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6072-89736",
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 4.754531481241319,
-      "speaker_id": "5152"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6072/cough/0008.wav",
-      "duration": 0.8188971147564752,
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-      "speaker_id": "6072"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3571/laugh/0081.wav",
-      "duration": 1.1280673459006518,
-      "start_time": 27.738613055326784,
-      "speaker_id": "3571"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_009598.json b/conversations/conv_009598.json
deleted file mode 100644
index 9685e8a0180c472f44bb66c3c8edabb300fe66b7..0000000000000000000000000000000000000000
--- a/conversations/conv_009598.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8388-275212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-275212.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.2204104465611625,
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-      "utterance_id": "1653-141272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-141272.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
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-      "utterance_id": "8388-275212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-275212.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 82417
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.196107987339193,
-      "end_time": 22.853223905415668,
-      "duration": 3.6571159180764763,
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-      "duration_frames": 58513,
-      "overlap": false,
-      "utterance_id": "1845-145083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145083.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.70196306910635,
-      "end_time": 28.15537930264117,
-      "duration": 4.45341623353482,
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-      "duration_frames": 71254,
-      "overlap": false,
-      "utterance_id": "8388-275212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-275212.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 186355
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.619254267458544,
-      "end_time": 32.0,
-      "duration": 3.380745732541456,
-      "start_frame": 457908,
-      "duration_frames": 54091,
-      "overlap": false,
-      "utterance_id": "1845-145083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145083.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 58513
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 14.07288923564494,
-      "speaker_id": "8388"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009602.json b/conversations/conv_009602.json
deleted file mode 100644
index 915488ce0db20d5dd86d2a931227a84d0d55c540..0000000000000000000000000000000000000000
--- a/conversations/conv_009602.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.094262456013963,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2012-139355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139355.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.358253338996689,
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-      "utterance_id": "4078-76853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-76853.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 8.219982068843564,
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-      "utterance_id": "4021-180238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-180238.flac |",
-      "real_speaker_id": "4021",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.062200193006896,
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-      "duration": 4.273958645274977,
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-      "utterance_id": "2012-139358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139358.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 16.960022565861262,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-76853.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 60037
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.709823924286443,
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-      "overlap": false,
-      "utterance_id": "4078-76853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-76853.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 136435
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.407426834420214,
-      "end_time": 32.0,
-      "duration": 2.592573165579786,
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-      "utterance_id": "4021-130137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-130137.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2012/laugh/0120.wav",
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-      "speaker_id": "2012"
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 15.662219729260224,
-      "speaker_id": "4078"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009605.json b/conversations/conv_009605.json
deleted file mode 100644
index a4feba428e32852524a6d215473c83739588432e..0000000000000000000000000000000000000000
--- a/conversations/conv_009605.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.544712012266537,
-      "duration": 4.544712012266537,
-      "start_frame": 0,
-      "duration_frames": 72715,
-      "overlap": false,
-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.724660415083364,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34607.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 72715
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.127652671359535,
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-      "overlap": false,
-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 174773
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "5019-44339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-44339.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.371559418436398,
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-      "overlap": false,
-      "utterance_id": "6147-34607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34607.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 81136
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "2068"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6147/laugh/0052.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2068/laugh/0037.wav",
-      "duration": 1.16,
-      "start_time": 19.45666385749119,
-      "speaker_id": "2068"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2068/cough/0049.wav",
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-      "start_time": 16.39165189335047,
-      "speaker_id": "2068"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5019/laugh/0009.wav",
-      "duration": 0.8230713822679014,
-      "start_time": 23.063077554724618,
-      "speaker_id": "5019"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009609.json b/conversations/conv_009609.json
deleted file mode 100644
index 1563b897253924e2ed89aef741a7aff9d4fb4aa2..0000000000000000000000000000000000000000
--- a/conversations/conv_009609.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.499453990681156,
-      "duration": 4.499453990681156,
-      "start_frame": 0,
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-      "utterance_id": "1754-137004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-137004.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 71336
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-137004.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 71991
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.630717783986015,
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-      "duration": 3.3692822160139855,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-140639.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009613.json b/conversations/conv_009613.json
deleted file mode 100644
index 255030b41b443c826af441a5db247f633bcf97e5..0000000000000000000000000000000000000000
--- a/conversations/conv_009613.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.969944510857506,
-      "duration": 4.969944510857506,
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-      "overlap": false,
-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.189376552465311,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168618.flac |",
-      "real_speaker_id": "3656",
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-      "speaker_id": 2,
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-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
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-      "segment_id": "seg0003",
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-      "utterance_id": "3656-168648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168648.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.25491852130092,
-      "end_time": 32.0,
-      "duration": 0.7450814786990811,
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-      "overlap": false,
-      "utterance_id": "3656-168648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168648.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 79565
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-      "duration": 0.78,
-      "start_time": 23.511292351972212,
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-}
\ No newline at end of file
diff --git a/conversations/conv_009614.json b/conversations/conv_009614.json
deleted file mode 100644
index 215a6dc25da25f83c83f656133f595dfecad242d..0000000000000000000000000000000000000000
--- a/conversations/conv_009614.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7565-101281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 6.369643058118787,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101287.flac |",
-      "real_speaker_id": "7565",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 87819
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 83203
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.818769186249604,
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-      "duration": 2.181230813750396,
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-      "utterance_id": "5678-43301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43301.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 17.07341574050862,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/500/cough/0081.wav",
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-      "start_time": 29.236587180688566,
-      "speaker_id": "500"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009625.json b/conversations/conv_009625.json
deleted file mode 100644
index dd16d618d4d2b50ef5dca424f3b8cc1c634102ef..0000000000000000000000000000000000000000
--- a/conversations/conv_009625.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7188-107627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57154.flac |",
-      "real_speaker_id": "6075",
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-      "real_speaker_id": "6075",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.979348768504313,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123154.flac |",
-      "real_speaker_id": "608",
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-    {
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-      "real_speaker_id": "6075",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "608-123155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123155.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "start_time": 9.909967409363306,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6075/cough/0075.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/608/laugh/0071.wav",
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-      "start_time": 27.946596578539854,
-      "speaker_id": "608"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009628.json b/conversations/conv_009628.json
deleted file mode 100644
index 9258d1f5d1600aac0bb3656811aafed06f70592e..0000000000000000000000000000000000000000
--- a/conversations/conv_009628.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.885526960544211,
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-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
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-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.127913954011978,
-      "end_time": 17.376028016605314,
-      "duration": 6.248114062593335,
-      "start_frame": 178046,
-      "duration_frames": 99969,
-      "overlap": false,
-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 78168
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.729887136492934,
-      "end_time": 23.471972778084552,
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-      "overlap": true,
-      "utterance_id": "5909-287837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-287837.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.32002916733632,
-      "end_time": 30.794484483536593,
-      "duration": 5.474455316200272,
-      "start_frame": 405120,
-      "duration_frames": 87591,
-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 90385
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.318391056399886,
-      "end_time": 32.0,
-      "duration": 0.6816089436001143,
-      "start_frame": 501094,
-      "duration_frames": 10905,
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-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 178137
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
-      "duration": 20.089497686696287,
-      "start_time": 3.69232084421859
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
-      "duration": 4.350534084346503,
-      "start_time": 17.122187262051035
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
-      "duration": 3.7829478458049888,
-      "start_time": 10.399918925220797
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1645/laugh/0000.wav",
-      "duration": 0.5996061310839599,
-      "start_time": 30.857726064022124,
-      "speaker_id": "1645"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009629.json b/conversations/conv_009629.json
deleted file mode 100644
index dad680adb7a81fcda0438e4168ec9b645c20435d..0000000000000000000000000000000000000000
--- a/conversations/conv_009629.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.254738812023206,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.239155327196794,
-      "duration": 6.239155327196794,
-      "start_frame": 0,
-      "duration_frames": 99826,
-      "overlap": false,
-      "utterance_id": "7502-100440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100440.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.770819394847259,
-      "end_time": 13.426785434060779,
-      "duration": 6.655966039213521,
-      "start_frame": 108333,
-      "duration_frames": 106495,
-      "overlap": false,
-      "utterance_id": "639-143022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.672986764339786,
-      "end_time": 21.517081019096086,
-      "duration": 6.8440942547563,
-      "start_frame": 234767,
-      "duration_frames": 109505,
-      "overlap": false,
-      "utterance_id": "7307-92008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-92008.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.954989318695134,
-      "end_time": 28.32264632883995,
-      "duration": 6.367657010144818,
-      "start_frame": 351279,
-      "duration_frames": 101882,
-      "overlap": false,
-      "utterance_id": "639-143022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 106495
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.938061410753896,
-      "end_time": 31.254738812023206,
-      "duration": 3.3166774012693097,
-      "start_frame": 447008,
-      "duration_frames": 53066,
-      "overlap": true,
-      "utterance_id": "7502-100425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100425.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.9085825885809538,
-      "start_time": 19.406985828072536
-    },
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.9447845804988662,
-      "start_time": 18.77674101958375
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/639/cough/0083.wav",
-      "duration": 0.751938234614824,
-      "start_time": 22.49097099473894,
-      "speaker_id": "639"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009633.json b/conversations/conv_009633.json
deleted file mode 100644
index ecd000ebb93eececdd8e05074fee8ffc2363c11c..0000000000000000000000000000000000000000
--- a/conversations/conv_009633.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.680333860342313,
-      "duration": 4.680333860342313,
-      "start_frame": 0,
-      "duration_frames": 74885,
-      "overlap": false,
-      "utterance_id": "4034-14942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-14942.flac |",
-      "real_speaker_id": "4034",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.165919239827051,
-      "end_time": 7.943196246745714,
-      "duration": 3.7772770069186623,
-      "start_frame": 66654,
-      "duration_frames": 60436,
-      "overlap": true,
-      "utterance_id": "4246-12544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12544.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.635344515592685,
-      "end_time": 15.028738753708545,
-      "duration": 6.393394238115861,
-      "start_frame": 138165,
-      "duration_frames": 102294,
-      "overlap": true,
-      "utterance_id": "4034-5706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-5706.flac |",
-      "real_speaker_id": "4034",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.160618970699012,
-      "end_time": 20.871962317452812,
-      "duration": 4.711343346753801,
-      "start_frame": 258569,
-      "duration_frames": 75381,
-      "overlap": false,
-      "utterance_id": "549-126410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.699893201164155,
-      "end_time": 26.88942379495449,
-      "duration": 5.189530593790335,
-      "start_frame": 347198,
-      "duration_frames": 83032,
-      "overlap": false,
-      "utterance_id": "4034-12475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-12475.flac |",
-      "real_speaker_id": "4034",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.34070693163034,
-      "end_time": 30.471559442143572,
-      "duration": 3.1308525105132308,
-      "start_frame": 437451,
-      "duration_frames": 50093,
-      "overlap": false,
-      "utterance_id": "4246-12544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12544.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 60436
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.211213214303196,
-      "end_time": 32.0,
-      "duration": 0.7887867856968036,
-      "start_frame": 499379,
-      "duration_frames": 12620,
-      "overlap": false,
-      "utterance_id": "549-126410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
-      "position_frames": 75381
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
-      "duration": 16.05002601216587,
-      "start_time": 10.088142406457598
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.8569263298736773,
-      "start_time": 24.295014903452998
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.329367345420688,
-      "start_time": 11.536957152966409
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4246/cough/0029.wav",
-      "duration": 0.8260470036740164,
-      "start_time": 26.338734700474543,
-      "speaker_id": "4246"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/549/laugh/0018.wav",
-      "duration": 1.0959273255400241,
-      "start_time": 29.831285783717384,
-      "speaker_id": "549"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009643.json b/conversations/conv_009643.json
deleted file mode 100644
index 8fbf2e351d344e7465c200c3a537c8795e6df969..0000000000000000000000000000000000000000
--- a/conversations/conv_009643.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.674460602769508,
-      "duration": 4.674460602769508,
-      "start_frame": 0,
-      "duration_frames": 74791,
-      "overlap": false,
-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.571499663897131,
-      "end_time": 11.421873644522464,
-      "duration": 6.850373980625333,
-      "start_frame": 73143,
-      "duration_frames": 109605,
-      "overlap": true,
-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 74791
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.872015536301227,
-      "end_time": 18.799571503360998,
-      "duration": 4.92755596705977,
-      "start_frame": 221952,
-      "duration_frames": 78840,
-      "overlap": false,
-      "utterance_id": "6167-73973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-73973.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.532544558838204,
-      "end_time": 25.39970634024398,
-      "duration": 5.867161781405778,
-      "start_frame": 312520,
-      "duration_frames": 93874,
-      "overlap": false,
-      "utterance_id": "6145-54685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54685.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.068093922240063,
-      "end_time": 28.622319538680514,
-      "duration": 3.5542256164404527,
-      "start_frame": 401089,
-      "duration_frames": 56867,
-      "overlap": true,
-      "utterance_id": "6145-54683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54683.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.787003174841033,
-      "end_time": 32.0,
-      "duration": 2.2129968251589673,
-      "start_frame": 476592,
-      "duration_frames": 35407,
-      "overlap": false,
-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 184396
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
-      "duration": 22.45929244034751,
-      "start_time": 9.416063451080365
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
-      "duration": 1.1705967041415666,
-      "start_time": 29.968677496542764
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
-      "duration": 1.3311263246010792,
-      "start_time": 20.135601734189382
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6221/laugh/0071.wav",
-      "duration": 1.5146103377963285,
-      "start_time": 2.6052263400104225,
-      "speaker_id": "6221"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6221/cough/0004.wav",
-      "duration": 0.6643988213482981,
-      "start_time": 4.7289464892244375,
-      "speaker_id": "6221"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6221/laugh/0065.wav",
-      "duration": 0.5545047180644425,
-      "start_time": 11.546012916514027,
-      "speaker_id": "6221"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6167/laugh/0072.wav",
-      "duration": 0.6700067252582242,
-      "start_time": 13.017501870614629,
-      "speaker_id": "6167"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6221/cough/0043.wav",
-      "duration": 1.18,
-      "start_time": 28.55935036645551,
-      "speaker_id": "6221"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009644.json b/conversations/conv_009644.json
deleted file mode 100644
index aee032f42c59e7e888e9c7e2ce13546d6909e1d2..0000000000000000000000000000000000000000
--- a/conversations/conv_009644.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.154350589985885,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.4156982796178355,
-      "duration": 5.4156982796178355,
-      "start_frame": 0,
-      "duration_frames": 86651,
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\ No newline at end of file
diff --git a/conversations/conv_009648.json b/conversations/conv_009648.json
deleted file mode 100644
index 7114701f207f719b428ec4157bca56a79bbe1c22..0000000000000000000000000000000000000000
--- a/conversations/conv_009648.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_009652.json b/conversations/conv_009652.json
deleted file mode 100644
index 72ba4a01d2a0b320ce92ac91a5cf679c36f8f750..0000000000000000000000000000000000000000
--- a/conversations/conv_009652.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_009655.json b/conversations/conv_009655.json
deleted file mode 100644
index c962552a02617d27aa5bd18dcd74031fbb14334a..0000000000000000000000000000000000000000
--- a/conversations/conv_009655.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7046/cough/0047.wav",
-      "duration": 0.84,
-      "start_time": 21.298136018406414,
-      "speaker_id": "7046"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009664.json b/conversations/conv_009664.json
deleted file mode 100644
index fa27296ace82b572079b27cf9b3a2ad8da8ab15c..0000000000000000000000000000000000000000
--- a/conversations/conv_009664.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.493501879041855,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.545943345557511,
-      "duration": 3.545943345557511,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7198-76169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-76169.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9968053429579524,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77905.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.783909575829693,
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-      "duration": 5.68695043010692,
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-      "duration_frames": 90991,
-      "overlap": true,
-      "utterance_id": "7198-80654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80654.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.465149966234794,
-      "end_time": 19.59025439103429,
-      "duration": 4.125104424799496,
-      "start_frame": 247442,
-      "duration_frames": 66001,
-      "overlap": true,
-      "utterance_id": "7220-77907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77907.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.949079635389133,
-      "end_time": 26.792732652900714,
-      "duration": 5.843653017511581,
-      "start_frame": 335185,
-      "duration_frames": 93498,
-      "overlap": false,
-      "utterance_id": "4680-16041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16041.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.450100589455076,
-      "end_time": 31.493501879041855,
-      "duration": 4.043401289586778,
-      "start_frame": 439201,
-      "duration_frames": 64694,
-      "overlap": false,
-      "utterance_id": "7198-80654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80654.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 90991
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_2.wav",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009668.json b/conversations/conv_009668.json
deleted file mode 100644
index 6c603f22a112c9720fa4f777202af66d5f7c0747..0000000000000000000000000000000000000000
--- a/conversations/conv_009668.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.647283467558782,
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-      "overlap": false,
-      "utterance_id": "1646-121409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121409.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.919914941819737,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1646-121406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121406.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.73624833168916,
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-      "utterance_id": "3132-167590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-167590.flac |",
-      "real_speaker_id": "3132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.4818002191832,
-      "end_time": 25.42557250126046,
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-      "duration_frames": 63100,
-      "overlap": false,
-      "utterance_id": "1646-121406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121406.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 91174
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.71111556006066,
-      "end_time": 28.733996670831853,
-      "duration": 3.022881110771194,
-      "start_frame": 411377,
-      "duration_frames": 48366,
-      "overlap": false,
-      "utterance_id": "3132-163510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-163510.flac |",
-      "real_speaker_id": "3132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.972738383007986,
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-      "duration": 3.027261616992014,
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-      "utterance_id": "1646-121406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121406.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 154274
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1646/laugh/0140.wav",
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-      "start_time": 1.8613200799455403,
-      "speaker_id": "1646"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1646/laugh/0047.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1646/laugh/0013.wav",
-      "duration": 1.6103222755555406,
-      "start_time": 30.38967772444446,
-      "speaker_id": "1646"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009672.json b/conversations/conv_009672.json
deleted file mode 100644
index 07c596c706b4fbb67954af8f99857baa7160f4e7..0000000000000000000000000000000000000000
--- a/conversations/conv_009672.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "duration": 6.6651598162780274,
-      "start_frame": 0,
-      "duration_frames": 106642,
-      "overlap": false,
-      "utterance_id": "5386-4145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-4145.flac |",
-      "real_speaker_id": "5386",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.146533998580526,
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-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7337-92819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "5386-8684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-8684.flac |",
-      "real_speaker_id": "5386",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "7337-92819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.29775771525869,
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-      "utterance_id": "5386-28384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-28384.flac |",
-      "real_speaker_id": "5386",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.56024405030209,
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-      "duration": 0.4397559496979113,
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-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7346/cough/0032.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5386/laugh/0062.wav",
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-      "speaker_id": "5386"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009680.json b/conversations/conv_009680.json
deleted file mode 100644
index 60a83e629e2c7b69a7266b88058fdec314b364ff..0000000000000000000000000000000000000000
--- a/conversations/conv_009680.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5271-10982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-10982.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.38876593091565,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5271-34505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34505.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
-      "start_time": 25.422064838800267
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5717/cough/0087.wav",
-      "duration": 0.47915462992588576,
-      "start_time": 11.682438094346054,
-      "speaker_id": "5717"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2411/cough/0065.wav",
-      "duration": 0.655274128938663,
-      "start_time": 28.535838882347544,
-      "speaker_id": "2411"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009687.json b/conversations/conv_009687.json
deleted file mode 100644
index 8edb298d98aefca47958d1895c0ccc3e345abf1a..0000000000000000000000000000000000000000
--- a/conversations/conv_009687.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5181836405405393,
-      "duration": 3.5181836405405393,
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-      "overlap": false,
-      "utterance_id": "712-123615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7751940496731056,
-      "end_time": 10.596173924726186,
-      "duration": 6.82097987505308,
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-      "duration_frames": 109135,
-      "overlap": false,
-      "utterance_id": "3588-180957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-180957.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.54243412322886,
-      "end_time": 17.772589647344983,
-      "duration": 6.230155524116123,
-      "start_frame": 184678,
-      "duration_frames": 99682,
-      "overlap": false,
-      "utterance_id": "1851-148312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148312.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.015100869963437,
-      "end_time": 22.130987474311624,
-      "duration": 4.115886604348188,
-      "start_frame": 288241,
-      "duration_frames": 65854,
-      "overlap": false,
-      "utterance_id": "1851-148962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.611255793938156,
-      "end_time": 26.697135160175414,
-      "duration": 4.085879366237258,
-      "start_frame": 361780,
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-      "overlap": false,
-      "utterance_id": "3588-54099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-54099.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.00259493790248,
-      "end_time": 30.22904764668164,
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-      "duration_frames": 51623,
-      "overlap": false,
-      "utterance_id": "712-123606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.561273972135705,
-      "end_time": 32.0,
-      "duration": 1.4387260278642948,
-      "start_frame": 488980,
-      "duration_frames": 23019,
-      "overlap": false,
-      "utterance_id": "3588-186215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-186215.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
-      "duration": 0.6348979591836734,
-      "start_time": 22.799169076809036
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/712/cough/0033.wav",
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-      "speaker_id": "712"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 10.791667031480447,
-      "speaker_id": "3588"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1851/laugh/0014.wav",
-      "duration": 1.16,
-      "start_time": 16.801660276131756,
-      "speaker_id": "1851"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3588/laugh/0044.wav",
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-      "start_time": 23.025606814787015,
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-    {
-      "event_class": "cough",
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-      "duration": 0.5084481589489286,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3588/laugh/0036.wav",
-      "duration": 1.117917579884622,
-      "start_time": 30.882082420115378,
-      "speaker_id": "3588"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009690.json b/conversations/conv_009690.json
deleted file mode 100644
index 79b2f99ffc897915900623a2f9503d68aab767a9..0000000000000000000000000000000000000000
--- a/conversations/conv_009690.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.138663967318648,
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-      "overlap": false,
-      "utterance_id": "64-76973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76973.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.779888279977569,
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-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "64-73712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-73712.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.42116252156338,
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-      "overlap": false,
-      "utterance_id": "4742-74181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.71949890819215,
-      "end_time": 29.831571888426744,
-      "duration": 5.112072980234595,
-      "start_frame": 395511,
-      "duration_frames": 81793,
-      "overlap": false,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 88420
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.998629400924493,
-      "end_time": 32.0,
-      "duration": 2.001370599075507,
-      "start_frame": 479978,
-      "duration_frames": 32021,
-      "overlap": false,
-      "utterance_id": "64-76973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76973.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 82218
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/64/cough/0023.wav",
-      "duration": 0.3384319193059945,
-      "start_time": 0,
-      "speaker_id": "64"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1943/cough/0005.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/64/cough/0076.wav",
-      "duration": 0.3219792219387661,
-      "start_time": 15.092676276342452,
-      "speaker_id": "64"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009691.json b/conversations/conv_009691.json
deleted file mode 100644
index d84c7713e2ed1dd704a6fb4a26be8b1d8ae6a794..0000000000000000000000000000000000000000
--- a/conversations/conv_009691.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.37826210931495,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_frame": 0,
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-      "utterance_id": "7558-89894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7558-89894.flac |",
-      "real_speaker_id": "7558",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.3335963089072242,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73296.flac |",
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-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1958-144503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.208961672757622,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7558-89894.flac |",
-      "real_speaker_id": "7558",
-      "position_frames": 48136
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.469762001577962,
-      "end_time": 25.136308654082537,
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-      "utterance_id": "6696-73296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73296.flac |",
-      "real_speaker_id": "6696",
-      "position_frames": 75105
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.264761275091733,
-      "end_time": 31.37826210931495,
-      "duration": 6.113500834223218,
-      "start_frame": 404236,
-      "duration_frames": 97816,
-      "overlap": false,
-      "utterance_id": "7558-89894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7558-89894.flac |",
-      "real_speaker_id": "7558",
-      "position_frames": 139393
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6696/laugh/0012.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "1958"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7558/laugh/0020.wav",
-      "duration": 1.36,
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-    {
-      "event_class": "cough",
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-    {
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-      "speaker_id": "7558"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009701.json b/conversations/conv_009701.json
deleted file mode 100644
index 612b49173d0a236904d3e2d854ce582670748eef..0000000000000000000000000000000000000000
--- a/conversations/conv_009701.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.359066994733236,
-      "duration": 5.359066994733236,
-      "start_frame": 0,
-      "duration_frames": 85745,
-      "overlap": false,
-      "utterance_id": "3947-13262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13262.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.0689532687808265,
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-      "utterance_id": "1868-145473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-145473.flac |",
-      "real_speaker_id": "1868",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4495-18533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-18533.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.486525368103827,
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-      "utterance_id": "1868-145459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-145459.flac |",
-      "real_speaker_id": "1868",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.44163429423189,
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-      "utterance_id": "1868-145473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-145473.flac |",
-      "real_speaker_id": "1868",
-      "position_frames": 78022
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.57650042535865,
-      "end_time": 32.0,
-      "duration": 3.423499574641351,
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-      "utterance_id": "3947-13262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13262.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 85745
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "duration": 1.2162762182195006,
-      "start_time": 12.194033720078133,
-      "speaker_id": "4495"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4495/cough/0026.wav",
-      "duration": 1.1803316030074484,
-      "start_time": 14.407393753370856,
-      "speaker_id": "4495"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3947/laugh/0057.wav",
-      "duration": 1.12,
-      "start_time": 30.194747248531606,
-      "speaker_id": "3947"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009706.json b/conversations/conv_009706.json
deleted file mode 100644
index 3d1ce24b8beaa84dc7421dffc083e6e42724dfdd..0000000000000000000000000000000000000000
--- a/conversations/conv_009706.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 4.027809367022065,
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-      "overlap": false,
-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.545208973922368,
-      "end_time": 11.448067771859971,
-      "duration": 6.902858797937602,
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-      "duration_frames": 110445,
-      "overlap": false,
-      "utterance_id": "7752-110522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110522.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.644984436199344,
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-      "duration": 5.47753117589364,
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-      "overlap": false,
-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 64444
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.92317303367864,
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-      "duration": 6.007968520250452,
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-      "duration_frames": 96127,
-      "overlap": false,
-      "utterance_id": "7752-113336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-113336.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.921979952056923,
-      "end_time": 29.89909328305471,
-      "duration": 4.9771133309977875,
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-      "overlap": false,
-      "utterance_id": "7752-110522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110522.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 110445
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.686536935135962,
-      "end_time": 32.0,
-      "duration": 1.3134630648640382,
-      "start_frame": 490984,
-      "duration_frames": 21015,
-      "overlap": false,
-      "utterance_id": "111-126277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126277.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "Cat",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7215/cough/0071.wav",
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-      "speaker_id": "7215"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009710.json b/conversations/conv_009710.json
deleted file mode 100644
index c3ede11d1058b9e209aa5c4af08c233fc0e5060a..0000000000000000000000000000000000000000
--- a/conversations/conv_009710.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2531-156724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156724.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.242990010164794,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-287657.flac |",
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-      "utterance_id": "2531-156720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156720.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.88124327327664,
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-      "utterance_id": "8138-293529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293529.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.28827679770611,
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-      "duration": 1.7117232022938893,
-      "start_frame": 484612,
-      "duration_frames": 27387,
-      "overlap": false,
-      "utterance_id": "8138-293529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293529.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 76140
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "start_time": 0,
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-      "event_class": "cough",
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-      "speaker_id": "8138"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009717.json b/conversations/conv_009717.json
deleted file mode 100644
index d671d2526b8ddd25f9ca52ccb21932c7cf4f51e0..0000000000000000000000000000000000000000
--- a/conversations/conv_009717.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "duration_frames": 52061,
-      "overlap": false,
-      "utterance_id": "6594-68897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68897.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8108",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.951812850192635,
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.182513771018627,
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-      "utterance_id": "377-129290",
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-      "real_speaker_id": "377",
-      "position_frames": 55730
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68896.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/377/laugh/0089.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009721.json b/conversations/conv_009721.json
deleted file mode 100644
index 13d89698519560d800ea170bd6571e4dbdf71625..0000000000000000000000000000000000000000
--- a/conversations/conv_009721.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.364223027392552,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "317-130248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130248.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.867497275019896,
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-      "real_speaker_id": "3053",
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-    {
-      "segment_id": "seg0002",
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-      "segment_id": "seg0006",
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-      "start_time": 30.86,
-      "speaker_id": "317"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_009737.json b/conversations/conv_009737.json
deleted file mode 100644
index 77865bf5acba6bcce36df8e0f9a0d34b5eda353a..0000000000000000000000000000000000000000
--- a/conversations/conv_009737.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
-      "position_frames": 66935
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126112.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.353025832165457,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
-      "position_frames": 143466
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009740.json b/conversations/conv_009740.json
deleted file mode 100644
index 54da7c71e11aa0d51d8e9cbfd36867933f65c59b..0000000000000000000000000000000000000000
--- a/conversations/conv_009740.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54685.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_009747.json b/conversations/conv_009747.json
deleted file mode 100644
index 2574ff35540aa0e948d3954db159d3f4875264c2..0000000000000000000000000000000000000000
--- a/conversations/conv_009747.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-129977.flac |",
-      "real_speaker_id": "198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 179376
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-  ],
-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_009751.json b/conversations/conv_009751.json
deleted file mode 100644
index 3cca84d6842ccd9f965a1ee5594d2694c076c945..0000000000000000000000000000000000000000
--- a/conversations/conv_009751.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2518-154826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154826.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1088",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70168.flac |",
-      "real_speaker_id": "6272",
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-      "speaker_id": 1,
-      "start_time": 13.686704672290269,
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-      "utterance_id": "2518-154826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154826.flac |",
-      "real_speaker_id": "2518",
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-      "real_speaker_id": "1088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.42920821349485,
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-      "utterance_id": "2518-154825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154825.flac |",
-      "real_speaker_id": "2518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.95641885920283,
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-      "duration": 3.043581140797169,
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-      "utterance_id": "1088-129236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-129236.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1088/laugh/0009.wav",
-      "duration": 0.7120338103797116,
-      "start_time": 23.870207118397204,
-      "speaker_id": "1088"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2518/laugh/0053.wav",
-      "duration": 1.2350674990853812,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2518/cough/0094.wav",
-      "duration": 0.7074474843096608,
-      "start_time": 23.713174624897974,
-      "speaker_id": "2518"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009756.json b/conversations/conv_009756.json
deleted file mode 100644
index bc147d5459343f078990774148f32f0059af8dd2..0000000000000000000000000000000000000000
--- a/conversations/conv_009756.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.22528328398708,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.397203054690511,
-      "duration": 5.397203054690511,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "227-126539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/227-126539.flac |",
-      "real_speaker_id": "227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.906504776668882,
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-      "duration_frames": 59418,
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-      "utterance_id": "2229-152864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152864.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/227-126539.flac |",
-      "real_speaker_id": "227",
-      "position_frames": 86355
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.452056908952258,
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-      "utterance_id": "2229-152842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152842.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8725-294554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294554.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.887445204970806,
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-      "overlap": false,
-      "utterance_id": "227-129974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/227-129974.flac |",
-      "real_speaker_id": "227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.85607812813557,
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-      "duration_frames": 21907,
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-      "utterance_id": "2229-152842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152842.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 58616
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "duration": 1.04,
-      "start_time": 11.7818938333608,
-      "speaker_id": "227"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009760.json b/conversations/conv_009760.json
deleted file mode 100644
index 62242d1f38b3667bd766cac96cfa442b302b9129..0000000000000000000000000000000000000000
--- a/conversations/conv_009760.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.234149759671595,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3744-178590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178590.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9760387575920655,
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-      "utterance_id": "3294-167609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167609.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.96436604601855,
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-      "utterance_id": "3744-178594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178594.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.725359033722278,
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-      "duration": 4.8262304026125635,
-      "start_frame": 267605,
-      "duration_frames": 77219,
-      "overlap": false,
-      "utterance_id": "3294-167597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167597.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.854069631642112,
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-      "duration": 3.179474022865298,
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-      "overlap": false,
-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 86560,
-      "overlap": true,
-      "utterance_id": "3744-178590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178590.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 55469
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 3.0286329335261972,
-      "start_time": 12.533559136718893
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3744/cough/0104.wav",
-      "duration": 0.9207467833220873,
-      "start_time": 14.526170263656889,
-      "speaker_id": "3744"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5653/laugh/0052.wav",
-      "duration": 1.24,
-      "start_time": 21.43587198375122,
-      "speaker_id": "5653"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009776.json b/conversations/conv_009776.json
deleted file mode 100644
index 546d88918fabe1b149bcdedf8e86728f0fa1b235..0000000000000000000000000000000000000000
--- a/conversations/conv_009776.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.511909025637546,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.741436967604271,
-      "duration": 6.741436967604271,
-      "start_frame": 0,
-      "duration_frames": 107862,
-      "overlap": false,
-      "utterance_id": "7276-284424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.3601302575307415,
-      "end_time": 12.63826124585335,
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-      "duration_frames": 84450,
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-      "utterance_id": "8479-276730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
-      "real_speaker_id": "8479",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.774002218893818,
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-      "duration": 4.36813500394949,
-      "start_frame": 220384,
-      "duration_frames": 69890,
-      "overlap": false,
-      "utterance_id": "7276-92427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.57017074081959,
-      "end_time": 24.530474338829595,
-      "duration": 5.960303598010005,
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-      "duration_frames": 95364,
-      "overlap": false,
-      "utterance_id": "3641-134615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-134615.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.466743752695887,
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-      "duration": 6.045165272941659,
-      "start_frame": 407467,
-      "duration_frames": 96722,
-      "overlap": true,
-      "utterance_id": "7276-92427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 69890
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
-      "duration": 0.2440362811791383,
-      "start_time": 1.1008870463617817
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8479/laugh/0040.wav",
-      "duration": 1.0,
-      "start_time": 12.684182237380258,
-      "speaker_id": "8479"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009782.json b/conversations/conv_009782.json
deleted file mode 100644
index 7a4d3c75e2d26fb2ddf2d927e83524f12fd01aa4..0000000000000000000000000000000000000000
--- a/conversations/conv_009782.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.242064094041509,
-      "duration": 6.242064094041509,
-      "start_frame": 0,
-      "duration_frames": 99873,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.4117547149943475,
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-      "duration": 5.1514060557538555,
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-      "duration_frames": 82422,
-      "overlap": false,
-      "utterance_id": "1414-130538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
-      "real_speaker_id": "1414",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "real_speaker_id": "7475",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1414",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1414/laugh/0022.wav",
-      "duration": 0.96,
-      "start_time": 25.21019512065532,
-      "speaker_id": "1414"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009783.json b/conversations/conv_009783.json
deleted file mode 100644
index 348950a24feb713fd3d4ee06e2aa1774dee09876..0000000000000000000000000000000000000000
--- a/conversations/conv_009783.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.763165020894533,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5918-46890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.37402411942249,
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-      "utterance_id": "1898-145720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145720.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 77082,
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-      "utterance_id": "5918-46890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 79311
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.35105867263281,
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-      "duration": 4.597516246892846,
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-      "overlap": false,
-      "utterance_id": "1898-145724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145724.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.404169983407325,
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-      "utterance_id": "8312-279790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279790.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.967285527766766,
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-      "utterance_id": "1898-145720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145720.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 100608
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1898/cough/0033.wav",
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-      "speaker_id": "1898"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009795.json b/conversations/conv_009795.json
deleted file mode 100644
index 76b2302556068c3570fb4c4ff133036875f506f2..0000000000000000000000000000000000000000
--- a/conversations/conv_009795.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "52-121057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
-    },
-    {
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-123202.flac |",
-      "real_speaker_id": "52",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 90587
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 24.29809408294544,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 99090
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 0.5007399054953154,
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-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-      "speaker_id": "7120"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009799.json b/conversations/conv_009799.json
deleted file mode 100644
index b8385eaa9a7b24a24903d04c3a2931cde8cbdd5a..0000000000000000000000000000000000000000
--- a/conversations/conv_009799.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1261-131411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-131411.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4156-12155",
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-      "real_speaker_id": "4156",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "position_frames": 75156
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3641-134615",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-127742.flac |",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "start_time": 26.862292473126043,
-      "speaker_id": "1261"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009804.json b/conversations/conv_009804.json
deleted file mode 100644
index 78b4e44b277d883f2047cc4f823da185a9829749..0000000000000000000000000000000000000000
--- a/conversations/conv_009804.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2494-156014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156014.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "4520",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132751.flac |",
-      "real_speaker_id": "348",
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-    {
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-      "utterance_id": "2494-156018",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156018.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.033464553222093,
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-      "duration": 6.694726472740022,
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-      "utterance_id": "348-128030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-128030.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.079068958770275,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132611.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.58034220563073,
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-      "duration": 1.4196577943692716,
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-      "utterance_id": "2494-156015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156015.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_009805.json b/conversations/conv_009805.json
deleted file mode 100644
index 722de13a906434a650b805c59948c2a818b21f57..0000000000000000000000000000000000000000
--- a/conversations/conv_009805.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.250119478696246,
-      "duration": 5.250119478696246,
-      "start_frame": 0,
-      "duration_frames": 84001,
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-      "utterance_id": "5077-38105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38105.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.816954734999116,
-      "end_time": 10.05282566497722,
-      "duration": 5.235870929978105,
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-      "duration_frames": 83773,
-      "overlap": true,
-      "utterance_id": "2149-8912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-8912.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.850417289378896,
-      "end_time": 17.159547318815846,
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-      "duration_frames": 100946,
-      "overlap": true,
-      "utterance_id": "64-76973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76973.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.784900477148682,
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-      "utterance_id": "5077-38108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38108.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.192613111252356,
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-      "duration_frames": 72156,
-      "overlap": true,
-      "utterance_id": "64-73712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-73712.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.222307218638754,
-      "end_time": 32.0,
-      "duration": 1.777692781361246,
-      "start_frame": 483556,
-      "duration_frames": 28443,
-      "overlap": false,
-      "utterance_id": "5077-38099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38099.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/64/laugh/0006.wav",
-      "duration": 1.12,
-      "start_time": 9.713686090178465,
-      "speaker_id": "64"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5077/cough/0064.wav",
-      "duration": 1.2711248894037164,
-      "start_time": 18.4281009500329,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5077/laugh/0035.wav",
-      "duration": 0.8648776387176034,
-      "start_time": 29.096345153482787,
-      "speaker_id": "5077"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009808.json b/conversations/conv_009808.json
deleted file mode 100644
index ce36f9cad9f1df9f641fa01318aa9ed9f4147117..0000000000000000000000000000000000000000
--- a/conversations/conv_009808.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.10230885962312,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.4431029540060045,
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-      "start_frame": 0,
-      "duration_frames": 71089,
-      "overlap": false,
-      "utterance_id": "6670-112764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.199669868867574,
-      "end_time": 10.982933744872156,
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-      "overlap": false,
-      "utterance_id": "1060-134451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.27810945288105,
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-      "duration_frames": 76461,
-      "overlap": false,
-      "utterance_id": "6670-112764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 71089
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.521837939108387,
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-      "utterance_id": "1060-134451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 92532
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6670-296083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-296083.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 147409
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.17170079838954,
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-      "duration": 2.9306080612335776,
-      "start_frame": 450747,
-      "duration_frames": 46889,
-      "overlap": true,
-      "utterance_id": "6670-84209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-84209.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1060/cough/0072.wav",
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-      "start_time": 15.58543195062431,
-      "speaker_id": "1060"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6670/laugh/0107.wav",
-      "duration": 0.92,
-      "start_time": 23.939578193911284,
-      "speaker_id": "6670"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1060/cough/0084.wav",
-      "duration": 0.3282296154783263,
-      "start_time": 28.288166235466637,
-      "speaker_id": "1060"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6670/laugh/0121.wav",
-      "duration": 1.0995242215124508,
-      "start_time": 26.99524997954922,
-      "speaker_id": "6670"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009812.json b/conversations/conv_009812.json
deleted file mode 100644
index 3d90b4f2ea6888ae9786da328bbac792997e070b..0000000000000000000000000000000000000000
--- a/conversations/conv_009812.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 69919,
-      "overlap": false,
-      "utterance_id": "2834-132496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2834-132496.flac |",
-      "real_speaker_id": "2834",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.888563049935608,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2834-132496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2834-132496.flac |",
-      "real_speaker_id": "2834",
-      "position_frames": 69919
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.080476882660502,
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-      "real_speaker_id": "8824",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 21.87341599111671,
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-      "utterance_id": "2834-132497",
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-      "real_speaker_id": "2834",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.769167372736,
-      "end_time": 30.260797705902608,
-      "duration": 3.491630333166608,
-      "start_frame": 428306,
-      "duration_frames": 55866,
-      "overlap": true,
-      "utterance_id": "8824-279153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
-      "real_speaker_id": "8824",
-      "position_frames": 107761
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.137113326403693,
-      "end_time": 32.0,
-      "duration": 0.8628866735963072,
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-      "overlap": false,
-      "utterance_id": "4205-11977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 73538
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-      "start_time": 10.358741190588741
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8824/cough/0028.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8824/laugh/0020.wav",
-      "duration": 1.08,
-      "start_time": 25.533689179888615,
-      "speaker_id": "8824"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009824.json b/conversations/conv_009824.json
deleted file mode 100644
index 38d119cc02afab5ebd7dce95c4c49ec5ccd95fd1..0000000000000000000000000000000000000000
--- a/conversations/conv_009824.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "5514",
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 0,
-      "speaker_id": "2026"
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-      "event_class": "laugh",
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-      "speaker_id": "5514"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009828.json b/conversations/conv_009828.json
deleted file mode 100644
index 0bc563b5f7320b7e1b80953123498c92711101f8..0000000000000000000000000000000000000000
--- a/conversations/conv_009828.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.641490755280444,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "8846-305208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305208.flac |",
-      "real_speaker_id": "8846",
-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8009-291933.flac |",
-      "real_speaker_id": "8009",
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_009832.json b/conversations/conv_009832.json
deleted file mode 100644
index 3f90a2eae91d49c0ff2fd4593734d2c7ceab4295..0000000000000000000000000000000000000000
--- a/conversations/conv_009832.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138289.flac |",
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-      "real_speaker_id": "1460",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3606-6850.flac |",
-      "real_speaker_id": "3606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.888990029772415,
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-      "utterance_id": "1460-138289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138289.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 84938
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3606-6850.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "duration": 0.94,
-      "start_time": 0,
-      "speaker_id": "1460"
-    },
-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009839.json b/conversations/conv_009839.json
deleted file mode 100644
index 5c433f8141bac2199fb15e56bdb182340cdc6417..0000000000000000000000000000000000000000
--- a/conversations/conv_009839.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.114789530247837,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4013-182396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-182396.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.956390530544883,
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-      "utterance_id": "4013-182396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-182396.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 101569
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5022-29411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29411.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "4013",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_009845.json b/conversations/conv_009845.json
deleted file mode 100644
index 1b268e3d8121549b2183de93f3b1c5b615d5741c..0000000000000000000000000000000000000000
--- a/conversations/conv_009845.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "real_speaker_id": "5808",
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_009849.json b/conversations/conv_009849.json
deleted file mode 100644
index 1049517fa5b8fbbfd1d823b5046600841c82b066..0000000000000000000000000000000000000000
--- a/conversations/conv_009849.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8887-281472",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8887-281472.flac |",
-      "real_speaker_id": "8887",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
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-      "utterance_id": "7285-72200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72200.flac |",
-      "real_speaker_id": "7285",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 16.56023927819065,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "8887-281471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8887-281471.flac |",
-      "real_speaker_id": "8887",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.52798324915789,
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-      "utterance_id": "3914-10088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 68350
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_009852.json b/conversations/conv_009852.json
deleted file mode 100644
index 9c3ef31cdd8d0241295b2166b08783a08e2fce47..0000000000000000000000000000000000000000
--- a/conversations/conv_009852.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
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-      "position_frames": 67002
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-      "position_frames": 0
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-      "speaker_id": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_009853.json b/conversations/conv_009853.json
deleted file mode 100644
index 992872f20540ca053aa368ab8a391621ada46920..0000000000000000000000000000000000000000
--- a/conversations/conv_009853.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
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-      "real_speaker_id": "4680",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "real_speaker_id": "448",
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-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_009865.json b/conversations/conv_009865.json
deleted file mode 100644
index 238fba7ea5f61a46e7bb756dc984f5ef329c4257..0000000000000000000000000000000000000000
--- a/conversations/conv_009865.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.201587929866765,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 97449
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-43306.flac |",
-      "real_speaker_id": "5723",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Blender",
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-      "speaker_id": "5723"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009869.json b/conversations/conv_009869.json
deleted file mode 100644
index becf20817467acb476d8dd072756ad924777c7f1..0000000000000000000000000000000000000000
--- a/conversations/conv_009869.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6080-58012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58012.flac |",
-      "real_speaker_id": "6080",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.02936593932535,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-233342.flac |",
-      "real_speaker_id": "6080",
-      "position_frames": 0
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-      "utterance_id": "2588-11081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-11081.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 0
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-      "start_time": 15.310712980036229,
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-      "utterance_id": "6080-58025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58025.flac |",
-      "real_speaker_id": "6080",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.40814681086516,
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-      "utterance_id": "2588-160947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-160947.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.89028533037139,
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-      "duration": 3.109714669628609,
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-      "utterance_id": "5656-44576",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5656-44576.flac |",
-      "real_speaker_id": "5656",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "duration": 1.36,
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-      "speaker_id": "2588"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009873.json b/conversations/conv_009873.json
deleted file mode 100644
index b5be42044bf837caef222550c8614c548acee9fc..0000000000000000000000000000000000000000
--- a/conversations/conv_009873.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8713-300047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-300047.flac |",
-      "real_speaker_id": "8713",
-      "position_frames": 0
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-      "real_speaker_id": "3368",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170951.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1730.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.03758163812505,
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-      "utterance_id": "8713-300047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-300047.flac |",
-      "real_speaker_id": "8713",
-      "position_frames": 72621
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "56-1732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1732.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-      "event_class": "Dog",
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-      "duration": 1.28,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/56/laugh/0037.wav",
-      "duration": 1.246938391817178,
-      "start_time": 30.753061608182822,
-      "speaker_id": "56"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009878.json b/conversations/conv_009878.json
deleted file mode 100644
index 661530462cd8c5df60e96f51c584ac4523e048cd..0000000000000000000000000000000000000000
--- a/conversations/conv_009878.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2090-147030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2090-147030.flac |",
-      "real_speaker_id": "2090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "6356-271890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6356-271890.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "4841-26659",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "2090-149737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2090-149737.flac |",
-      "real_speaker_id": "2090",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.302233522418522,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6356-271890.flac |",
-      "real_speaker_id": "6356",
-      "position_frames": 75423
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "2090",
-      "position_frames": 68731
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "speaker_id": "6356"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009881.json b/conversations/conv_009881.json
deleted file mode 100644
index a786d2cf775233e7a8a6d1aa326709ce71a168fe..0000000000000000000000000000000000000000
--- a/conversations/conv_009881.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6106-58196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58196.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58195.flac |",
-      "real_speaker_id": "6106",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
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-      "segment_id": "seg0004",
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-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.22816297713247,
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-      "duration": 1.7718370228675298,
-      "start_frame": 483650,
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-      "utterance_id": "7120-76055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.8383307543468317,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7120/laugh/0103.wav",
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-      "speaker_id": "7120"
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-      "event_class": "cough",
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-      "start_time": 30.55089854938138,
-      "speaker_id": "7120"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009886.json b/conversations/conv_009886.json
deleted file mode 100644
index d4ffc0236c707c80d3861fdc4bbff57acfce528d..0000000000000000000000000000000000000000
--- a/conversations/conv_009886.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "923-132306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132306.flac |",
-      "real_speaker_id": "923",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.5392087409892135,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132307.flac |",
-      "real_speaker_id": "923",
-      "position_frames": 0
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 67277
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 78865
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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\ No newline at end of file
diff --git a/conversations/conv_009890.json b/conversations/conv_009890.json
deleted file mode 100644
index 195eeebbdc11e02ba7c8308218598212c4d762de..0000000000000000000000000000000000000000
--- a/conversations/conv_009890.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1690-142293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/791-127519.flac |",
-      "real_speaker_id": "791",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 101762
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "791-127519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/791-127519.flac |",
-      "real_speaker_id": "791",
-      "position_frames": 57019
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.81470997099457,
-      "end_time": 28.471621474975002,
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-      "duration_frames": 90510,
-      "overlap": false,
-      "utterance_id": "233-134440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-134440.flac |",
-      "real_speaker_id": "233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.65839087201288,
-      "end_time": 32.0,
-      "duration": 2.3416091279871196,
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-      "duration_frames": 37465,
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-      "utterance_id": "233-134440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-134440.flac |",
-      "real_speaker_id": "233",
-      "position_frames": 90510
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
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-      "event_class": "Alarm_bell_ringing",
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-      "start_time": 17.08991879164616
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1690/laugh/0056.wav",
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-      "start_time": 14.725484309732863,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/791/cough/0036.wav",
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-      "start_time": 21.937896298109035,
-      "speaker_id": "791"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009891.json b/conversations/conv_009891.json
deleted file mode 100644
index 8e6f265888f1249aab7393c6e6fc46ef3e667e44..0000000000000000000000000000000000000000
--- a/conversations/conv_009891.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 4.4716137862156025,
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-      "overlap": false,
-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.705837881378189,
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-      "duration_frames": 92630,
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-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 71545
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "884-129800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "7250",
-      "position_frames": 164175
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66470.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "start_frame": 492490,
-      "duration_frames": 19509,
-      "overlap": false,
-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 272391
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/884/laugh/0054.wav",
-      "duration": 0.5787765398929778,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.14,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6518/cough/0119.wav",
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-      "start_time": 25.482077056545453,
-      "speaker_id": "6518"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009897.json b/conversations/conv_009897.json
deleted file mode 100644
index 7edd7f6f24bba7e76f4aa59aacb0aadbdf07cd0a..0000000000000000000000000000000000000000
--- a/conversations/conv_009897.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.42398587834974,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.7153865010114115,
-      "duration": 4.7153865010114115,
-      "start_frame": 0,
-      "duration_frames": 75446,
-      "overlap": false,
-      "utterance_id": "3537-5704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5704.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.311171716423285,
-      "end_time": 8.35100407607704,
-      "duration": 3.039832359653754,
-      "start_frame": 84978,
-      "duration_frames": 48637,
-      "overlap": false,
-      "utterance_id": "1564-142299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.575505624568013,
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-      "duration": 3.9458876301121624,
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-      "duration_frames": 63134,
-      "overlap": true,
-      "utterance_id": "1564-142299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 48637
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.59850743984597,
-      "end_time": 17.26652645394634,
-      "duration": 3.6680190141003686,
-      "start_frame": 217576,
-      "duration_frames": 58688,
-      "overlap": true,
-      "utterance_id": "3537-5703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5703.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.160363351047334,
-      "end_time": 24.682994568305823,
-      "duration": 6.522631217258489,
-      "start_frame": 290565,
-      "duration_frames": 104362,
-      "overlap": false,
-      "utterance_id": "1564-142299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 111771
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.740712988302775,
-      "end_time": 31.42398587834974,
-      "duration": 5.6832728900469665,
-      "start_frame": 411851,
-      "duration_frames": 90932,
-      "overlap": false,
-      "utterance_id": "3537-5703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5703.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 58688
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
-      "duration": 0.30428571428571427,
-      "start_time": 15.518550195173002
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3537/laugh/0110.wav",
-      "duration": 0.8018990351521961,
-      "start_time": 17.328889583496295,
-      "speaker_id": "3537"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1564/laugh/0027.wav",
-      "duration": 1.36,
-      "start_time": 21.559786004783465,
-      "speaker_id": "1564"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1564/cough/0065.wav",
-      "duration": 1.24,
-      "start_time": 16.84893121183128,
-      "speaker_id": "1564"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009900.json b/conversations/conv_009900.json
deleted file mode 100644
index 3456278582d0ff312d8ab2d924dc5e1a8c219d26..0000000000000000000000000000000000000000
--- a/conversations/conv_009900.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.6684623949226705,
-      "duration": 4.6684623949226705,
-      "start_frame": 0,
-      "duration_frames": 74695,
-      "overlap": false,
-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.005188240452357,
-      "end_time": 10.305418628175467,
-      "duration": 5.3002303877231105,
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-      "duration_frames": 84803,
-      "overlap": false,
-      "utterance_id": "7434-96672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.592705384629035,
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-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 74695
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "4234-187738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-187738.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.256314063559334,
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-      "utterance_id": "7434-75939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-75939.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.935603950362506,
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-      "duration": 3.9228869607242016,
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-      "overlap": false,
-      "utterance_id": "4234-187738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-187738.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 55747
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.421193900436972,
-      "end_time": 32.0,
-      "duration": 3.578806099563028,
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-      "overlap": false,
-      "utterance_id": "7434-75939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-75939.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 63787
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3025/laugh/0042.wav",
-      "duration": 1.28,
-      "start_time": 9.146380459396648,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3025/cough/0048.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7434/laugh/0073.wav",
-      "duration": 0.92,
-      "start_time": 20.636339927366112,
-      "speaker_id": "7434"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009916.json b/conversations/conv_009916.json
deleted file mode 100644
index 771a472bb51f810603db941e781480fdcd56c540..0000000000000000000000000000000000000000
--- a/conversations/conv_009916.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3227-24784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.987983692001246,
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-      "utterance_id": "3227-24788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24788.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1726-142316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
-      "real_speaker_id": "3227",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
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-      "position_frames": 171023
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1726-142316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 85578
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3227/laugh/0004.wav",
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-      "start_time": 5.375836696982786,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1726/laugh/0064.wav",
-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1726/laugh/0099.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009917.json b/conversations/conv_009917.json
deleted file mode 100644
index 84bb69d219a9fe5bf1da076817ffb63441736610..0000000000000000000000000000000000000000
--- a/conversations/conv_009917.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2929-86777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-86777.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-      "start_time": 1.017486417919094
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3857/laugh/0063.wav",
-      "duration": 0.84,
-      "start_time": 16.939670384768984,
-      "speaker_id": "3857"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2929/laugh/0107.wav",
-      "duration": 1.1071900897877667,
-      "start_time": 30.103072791825333,
-      "speaker_id": "2929"
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-    {
-      "event_class": "cough",
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-      "start_time": 29.977513625665903,
-      "speaker_id": "2929"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009920.json b/conversations/conv_009920.json
deleted file mode 100644
index ca1679053d02c1e4c773655bae43f88bb688a44a..0000000000000000000000000000000000000000
--- a/conversations/conv_009920.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.270507306128624,
-      "duration": 6.270507306128624,
-      "start_frame": 0,
-      "duration_frames": 100328,
-      "overlap": false,
-      "utterance_id": "2671-157946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157946.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.469591226243649,
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-      "duration": 3.4240171385852936,
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-      "utterance_id": "1182-133396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-133396.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.438702901762511,
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-      "overlap": false,
-      "utterance_id": "3962-721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3962-721.flac |",
-      "real_speaker_id": "3962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.92776166969127,
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-      "utterance_id": "1182-134981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134981.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.039892319356767,
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-      "duration": 6.344544990060432,
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-      "duration_frames": 101512,
-      "overlap": true,
-      "utterance_id": "2671-157946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157946.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 100328
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.35344295200607,
-      "end_time": 32.0,
-      "duration": 0.6465570479939302,
-      "start_frame": 501655,
-      "duration_frames": 10344,
-      "overlap": false,
-      "utterance_id": "2671-157947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157947.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2671/laugh/0032.wav",
-      "duration": 1.366508011807886,
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-      "speaker_id": "2671"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1182/laugh/0097.wav",
-      "duration": 0.6093013799781601,
-      "start_time": 5.824239303164679,
-      "speaker_id": "1182"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1182/cough/0027.wav",
-      "duration": 0.98,
-      "start_time": 5.446381841319882,
-      "speaker_id": "1182"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1182/cough/0013.wav",
-      "duration": 1.04,
-      "start_time": 16.736586144105274,
-      "speaker_id": "1182"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009936.json b/conversations/conv_009936.json
deleted file mode 100644
index 202eab65a6d43a0ad182fe93d9124ad444b393cb..0000000000000000000000000000000000000000
--- a/conversations/conv_009936.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.467401497255533,
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-      "overlap": false,
-      "utterance_id": "6696-73296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73296.flac |",
-      "real_speaker_id": "6696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.010931073546301,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.36291843703889,
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-      "duration": 3.7316806133776765,
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-      "duration_frames": 59706,
-      "overlap": false,
-      "utterance_id": "6696-73296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73296.flac |",
-      "real_speaker_id": "6696",
-      "position_frames": 103478
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.832923502475001,
-      "end_time": 22.001999281725038,
-      "duration": 6.169075779250037,
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-      "duration_frames": 98705,
-      "overlap": false,
-      "utterance_id": "3228-4691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4691.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.124282161271665,
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-      "overlap": false,
-      "utterance_id": "6696-73295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73295.flac |",
-      "real_speaker_id": "6696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.44436792252088,
-      "end_time": 32.0,
-      "duration": 2.555632077479121,
-      "start_frame": 471109,
-      "duration_frames": 40890,
-      "overlap": false,
-      "utterance_id": "3228-4691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4691.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 98705
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-      "start_time": 4.525877773409271
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-      "start_time": 15.903910410962109
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
-      "duration": 0.0936734693877551,
-      "start_time": 28.079120529189673
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6696/laugh/0075.wav",
-      "duration": 1.14,
-      "start_time": 6.616591369723522,
-      "speaker_id": "6696"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.0,
-      "start_time": 9.100165269789768,
-      "speaker_id": "3228"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6696/laugh/0068.wav",
-      "duration": 1.1,
-      "start_time": 12.232088998846827,
-      "speaker_id": "6696"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3228/laugh/0017.wav",
-      "duration": 0.76,
-      "start_time": 14.920539737241738,
-      "speaker_id": "3228"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6696/laugh/0090.wav",
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-      "start_time": 21.96299460036295,
-      "speaker_id": "6696"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3228/laugh/0056.wav",
-      "duration": 1.6027603048541077,
-      "start_time": 29.519492654334055,
-      "speaker_id": "3228"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3228/cough/0103.wav",
-      "duration": 0.8421292609262176,
-      "start_time": 31.097083328929763,
-      "speaker_id": "3228"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009940.json b/conversations/conv_009940.json
deleted file mode 100644
index 53021490c87fcf61706c80a23a2a5dd476a48d58..0000000000000000000000000000000000000000
--- a/conversations/conv_009940.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4771-6409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.633920579038389,
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-      "duration_frames": 68481,
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-      "utterance_id": "366-129285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-129285.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.57491157409003,
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-      "overlap": false,
-      "utterance_id": "58-121081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121081.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.880086621597709,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-126663.flac |",
-      "real_speaker_id": "366",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121081.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 75696
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.84987110827197,
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-      "overlap": false,
-      "utterance_id": "366-127793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-127793.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "speaker_id": "4771"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/366/laugh/0094.wav",
-      "duration": 0.5541858872849258,
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-      "speaker_id": "366"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/366/laugh/0006.wav",
-      "duration": 1.16,
-      "start_time": 16.536318417877435,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/58/laugh/0058.wav",
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-      "start_time": 26.39893046298516,
-      "speaker_id": "58"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009941.json b/conversations/conv_009941.json
deleted file mode 100644
index 69cddb749697e74db7c7714e06d56ce0dd530cd3..0000000000000000000000000000000000000000
--- a/conversations/conv_009941.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8470-286675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286675.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4520-38484.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4520-1805.flac |",
-      "real_speaker_id": "4520",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 0.88,
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-      "event_class": "laugh",
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-      "duration": 1.84,
-      "start_time": 29.85013363772365,
-      "speaker_id": "4520"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009957.json b/conversations/conv_009957.json
deleted file mode 100644
index b6869a854760f4ad4ba8d0b705b1d7923d01e453..0000000000000000000000000000000000000000
--- a/conversations/conv_009957.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "end_time": 4.537906470665426,
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-      "utterance_id": "2709-158074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2709-158074.flac |",
-      "real_speaker_id": "2709",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.188134065108158,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2709-158074.flac |",
-      "real_speaker_id": "2709",
-      "position_frames": 72606
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166421.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166423.flac |",
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-      "real_speaker_id": "5328",
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-      "utterance_id": "3070-166420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166420.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.19662277220936,
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-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
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-      "speaker_id": "5328"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009961.json b/conversations/conv_009961.json
deleted file mode 100644
index 28609de979e364861390a308326af1553d84041a..0000000000000000000000000000000000000000
--- a/conversations/conv_009961.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91906.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91906.flac |",
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-      "real_speaker_id": "5157",
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-      "real_speaker_id": "7258",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5157-47238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47238.flac |",
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-      "position_frames": 71662
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-      "speaker_id": "5157"
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-}
\ No newline at end of file
diff --git a/conversations/conv_009977.json b/conversations/conv_009977.json
deleted file mode 100644
index 8bef960d6ac5bc3a3361c8086ea2471e1778cd4e..0000000000000000000000000000000000000000
--- a/conversations/conv_009977.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-29101.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127538.flac |",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5093/laugh/0029.wav",
-      "duration": 1.3876839951253348,
-      "start_time": 0,
-      "speaker_id": "5093"
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-      "event_class": "laugh",
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-      "duration": 1.4189823907333552,
-      "start_time": 7.885469926579918,
-      "speaker_id": "534"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009982.json b/conversations/conv_009982.json
deleted file mode 100644
index 577c11edbe462669b42fe81531f93f699a762baa..0000000000000000000000000000000000000000
--- a/conversations/conv_009982.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.369624555142344,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.244267663180752,
-      "duration": 4.244267663180752,
-      "start_frame": 0,
-      "duration_frames": 67908,
-      "overlap": false,
-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.0780930227497585,
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-      "utterance_id": "8148-286229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8148-286229.flac |",
-      "real_speaker_id": "8148",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 11.47823818956314,
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-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 67908
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.62788649654047,
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-      "overlap": true,
-      "utterance_id": "1874-165702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-165702.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.460549060284773,
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-      "duration": 5.269139275843019,
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-      "overlap": false,
-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 153676
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.888229925991716,
-      "end_time": 31.369624555142344,
-      "duration": 1.4813946291506284,
-      "start_frame": 478211,
-      "duration_frames": 23702,
-      "overlap": true,
-      "utterance_id": "8148-286229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8148-286229.flac |",
-      "real_speaker_id": "8148",
-      "position_frames": 78540
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3053/laugh/0044.wav",
-      "duration": 1.4,
-      "start_time": 0,
-      "speaker_id": "3053"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3053/cough/0039.wav",
-      "duration": 0.78,
-      "start_time": 0,
-      "speaker_id": "3053"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1874/laugh/0054.wav",
-      "duration": 1.08,
-      "start_time": 23.265326104000014,
-      "speaker_id": "1874"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8148/cough/0098.wav",
-      "duration": 0.4757931145549187,
-      "start_time": 29.38527546102327,
-      "speaker_id": "8148"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009985.json b/conversations/conv_009985.json
deleted file mode 100644
index 71fd5a8e2cf4648a147bb0fc8d9e6f70f1d85797..0000000000000000000000000000000000000000
--- a/conversations/conv_009985.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.2203292425031362,
-      "duration": 3.2203292425031362,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5266-34501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-34501.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.133698567700156,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-93308.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-34501.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 51525
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7556-93308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-93308.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 67936
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.792413164693247,
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-      "utterance_id": "7069-246889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246889.flac |",
-      "real_speaker_id": "7069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.529666154900404,
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-      "overlap": false,
-      "utterance_id": "7556-103536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-103536.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.238930579889793,
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-      "duration": 1.761069420110207,
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-      "utterance_id": "5266-34501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-34501.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 130475
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
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-      "speaker_id": "7069"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5266/laugh/0100.wav",
-      "duration": 0.7766991721219576,
-      "start_time": 29.368751686063,
-      "speaker_id": "5266"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009993.json b/conversations/conv_009993.json
deleted file mode 100644
index e5ba27c550d637b81f141898280fa9d69bacb67b..0000000000000000000000000000000000000000
--- a/conversations/conv_009993.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2541-159352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-159352.flac |",
-      "real_speaker_id": "2541",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15678.flac |",
-      "real_speaker_id": "4397",
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-      "utterance_id": "5319-84357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-84357.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.941186475518776,
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-      "utterance_id": "2541-185493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-185493.flac |",
-      "real_speaker_id": "2541",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.89763975545545,
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-      "utterance_id": "4397-15666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15666.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.66246755150966,
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-      "duration": 0.3375324484903395,
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-      "duration_frames": 5400,
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-      "utterance_id": "5319-84357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-84357.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 64141
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4397/laugh/0074.wav",
-      "duration": 0.5032699658317619,
-      "start_time": 24.23859255241374,
-      "speaker_id": "4397"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009994.json b/conversations/conv_009994.json
deleted file mode 100644
index 1ccfd7e4de7102b5d7886b43aa5f70885129e881..0000000000000000000000000000000000000000
--- a/conversations/conv_009994.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "3436-172162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172162.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "2060-150855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2060-150855.flac |",
-      "real_speaker_id": "2060",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 14.224528732822408,
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-      "utterance_id": "3436-172171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 105576
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-  "foreground_events": [
-    {
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-      "start_time": 26.62470085199889
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2060/laugh/0099.wav",
-      "duration": 1.36,
-      "start_time": 7.221292983611086,
-      "speaker_id": "2060"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_009998.json b/conversations/conv_009998.json
deleted file mode 100644
index b615e27b392ce13303c151d7d9d6846d3f788203..0000000000000000000000000000000000000000
--- a/conversations/conv_009998.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.68877339391273,
-      "duration": 5.68877339391273,
-      "start_frame": 0,
-      "duration_frames": 91020,
-      "overlap": false,
-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.331178543702679,
-      "end_time": 11.162566964445158,
-      "duration": 4.83138842074248,
-      "start_frame": 101298,
-      "duration_frames": 77302,
-      "overlap": false,
-      "utterance_id": "205-123882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-123882.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.495896292973292,
-      "end_time": 15.864708614243575,
-      "duration": 5.3688123212702825,
-      "start_frame": 167934,
-      "duration_frames": 85900,
-      "overlap": true,
-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 91020
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.78380517452456,
-      "end_time": 22.345626513915306,
-      "duration": 4.561821339390746,
-      "start_frame": 284540,
-      "duration_frames": 72989,
-      "overlap": false,
-      "utterance_id": "205-123882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-123882.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 77302
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.250917135500483,
-      "end_time": 29.442403975590192,
-      "duration": 6.191486840089709,
-      "start_frame": 372014,
-      "duration_frames": 99063,
-      "overlap": false,
-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 176920
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.708401478313796,
-      "end_time": 32.0,
-      "duration": 2.291598521686204,
-      "start_frame": 475334,
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-      "overlap": false,
-      "utterance_id": "7687-107687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1752/laugh/0003.wav",
-      "duration": 1.1091076794446435,
-      "start_time": 0,
-      "speaker_id": "1752"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/205/cough/0118.wav",
-      "duration": 1.1,
-      "start_time": 16.55200024162937,
-      "speaker_id": "205"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010003.json b/conversations/conv_010003.json
deleted file mode 100644
index 86d82b6f81ca1f4998cdbd9c85198650322ffd81..0000000000000000000000000000000000000000
--- a/conversations/conv_010003.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.607134692879729,
-      "duration": 3.607134692879729,
-      "start_frame": 0,
-      "duration_frames": 57714,
-      "overlap": false,
-      "utterance_id": "5278-3072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-3072.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.395319034903469,
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-      "utterance_id": "1058-131113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "5278-40890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40890.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.964309299426382,
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-      "duration_frames": 84156,
-      "overlap": false,
-      "utterance_id": "1058-131113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 80904
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.901140428743386,
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-      "overlap": false,
-      "utterance_id": "5278-40897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40897.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 1.84175457222634,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5278/laugh/0042.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "5278"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1058/cough/0100.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5837/laugh/0101.wav",
-      "duration": 1.4,
-      "start_time": 16.15227956679817,
-      "speaker_id": "5837"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010015.json b/conversations/conv_010015.json
deleted file mode 100644
index 197b056179296f5e84cc25be8b395fe8607b7397..0000000000000000000000000000000000000000
--- a/conversations/conv_010015.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.02239933527013,
-      "end_time": 7.905811691881687,
-      "duration": 3.883412356611557,
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-      "duration_frames": 62134,
-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.844594758603515,
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-      "utterance_id": "911-128684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-128684.flac |",
-      "real_speaker_id": "911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "6641",
-      "position_frames": 61394
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-128684.flac |",
-      "real_speaker_id": "911",
-      "position_frames": 85158
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.070888101861726,
-      "end_time": 32.0,
-      "duration": 0.9291118981382738,
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-      "duration_frames": 14865,
-      "overlap": false,
-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 146245
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6641/laugh/0127.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/laugh/0090.wav",
-      "duration": 1.5,
-      "start_time": 6.75393463747664,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "1001"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010019.json b/conversations/conv_010019.json
deleted file mode 100644
index 7f6607599307ac346d0f0bfb2a9b319206b8b4b8..0000000000000000000000000000000000000000
--- a/conversations/conv_010019.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.227630432371351,
-      "duration": 6.227630432371351,
-      "start_frame": 0,
-      "duration_frames": 99642,
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-      "utterance_id": "5661-32891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32891.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "5661",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "6993-83607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83607.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-    {
-      "event_class": "Dishes",
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-      "duration": 0.30428571428571427,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5661/laugh/0114.wav",
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-      "start_time": 5.077934432350969,
-      "speaker_id": "5661"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6993/cough/0015.wav",
-      "duration": 0.42943573355308606,
-      "start_time": 18.12051558303817,
-      "speaker_id": "6993"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5661/cough/0116.wav",
-      "duration": 0.5673593078547116,
-      "start_time": 27.790289348558197,
-      "speaker_id": "5661"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010023.json b/conversations/conv_010023.json
deleted file mode 100644
index 0899a17ba429bef5424b6755110bca5decc149cf..0000000000000000000000000000000000000000
--- a/conversations/conv_010023.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.922037659160547,
-      "duration": 4.922037659160547,
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-      "duration_frames": 78752,
-      "overlap": false,
-      "utterance_id": "4078-7619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.237367208655068,
-      "end_time": 10.180803689696528,
-      "duration": 4.94343648104146,
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-      "duration_frames": 79094,
-      "overlap": false,
-      "utterance_id": "3409-167623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3409-167623.flac |",
-      "real_speaker_id": "3409",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3409-173540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3409-173540.flac |",
-      "real_speaker_id": "3409",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.48837325881766,
-      "end_time": 21.633037773127032,
-      "duration": 5.144664514309372,
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-      "duration_frames": 82314,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 78752
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.959636187879145,
-      "end_time": 26.05075651745861,
-      "duration": 4.091120329579464,
-      "start_frame": 351354,
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-      "overlap": false,
-      "utterance_id": "2270-3547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3547.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.46954722331841,
-      "end_time": 29.83723784062614,
-      "duration": 3.3676906173077286,
-      "start_frame": 423512,
-      "duration_frames": 53883,
-      "overlap": false,
-      "utterance_id": "4078-7619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 161066
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.211139713698792,
-      "end_time": 32.0,
-      "duration": 1.7888602863012082,
-      "start_frame": 483378,
-      "duration_frames": 28621,
-      "overlap": false,
-      "utterance_id": "3409-167623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3409-167623.flac |",
-      "real_speaker_id": "3409",
-      "position_frames": 79094
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/laugh/0015.wav",
-      "duration": 1.52,
-      "start_time": 0,
-      "speaker_id": "4078"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/laugh/0032.wav",
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-      "start_time": 19.34437613957082,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2270/laugh/0141.wav",
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-      "start_time": 20.926883078220534,
-      "speaker_id": "2270"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/cough/0014.wav",
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-      "speaker_id": "4078"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3409/cough/0138.wav",
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-      "speaker_id": "3409"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010024.json b/conversations/conv_010024.json
deleted file mode 100644
index 125ac15cde49a5a4e2c65872c9ceb1729d1091a6..0000000000000000000000000000000000000000
--- a/conversations/conv_010024.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.38964590359111,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 51374,
-      "overlap": false,
-      "utterance_id": "815-130105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130105.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.677098506037244,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-129983.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.125724878619703,
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-      "duration": 6.597436377028284,
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-      "overlap": false,
-      "utterance_id": "815-130569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130569.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.118102445425777,
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-      "duration": 6.536892113515689,
-      "start_frame": 289889,
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-      "overlap": false,
-      "utterance_id": "472-129994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-129994.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.229211739859725,
-      "end_time": 29.59009665041293,
-      "duration": 4.360884910553208,
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-      "duration_frames": 69774,
-      "overlap": false,
-      "utterance_id": "8771-294523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.38611364837783,
-      "end_time": 31.38964590359111,
-      "duration": 2.0035322552132797,
-      "start_frame": 470177,
-      "duration_frames": 32056,
-      "overlap": true,
-      "utterance_id": "472-130755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-130755.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
-      "duration": 26.865822843109953,
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-  ],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/472/laugh/0055.wav",
-      "duration": 0.88,
-      "start_time": 2.7840657638987905,
-      "speaker_id": "472"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/472/laugh/0034.wav",
-      "duration": 1.56,
-      "start_time": 27.761665463875485,
-      "speaker_id": "472"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010032.json b/conversations/conv_010032.json
deleted file mode 100644
index 61584218072800783fd92b45d89bc3b97cc12afe..0000000000000000000000000000000000000000
--- a/conversations/conv_010032.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 4.786927453195222,
-      "start_frame": 0,
-      "duration_frames": 76590,
-      "overlap": false,
-      "utterance_id": "587-54108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-54108.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.080902384559298,
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-      "duration_frames": 63553,
-      "overlap": false,
-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.356121257980737,
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-      "duration_frames": 102926,
-      "overlap": false,
-      "utterance_id": "1665-132826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-132826.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.37727230323666,
-      "end_time": 21.140148234190388,
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-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 63553
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.77393926936029,
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-      "overlap": false,
-      "utterance_id": "1665-136991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.118992098058236,
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-      "duration_frames": 51311,
-      "overlap": false,
-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 139759
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.707322826714282,
-      "end_time": 32.0,
-      "duration": 2.2926771732857176,
-      "start_frame": 475317,
-      "duration_frames": 36682,
-      "overlap": false,
-      "utterance_id": "1665-136991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 62866
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
-      "duration": 0.6683219954648526,
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1665/laugh/0028.wav",
-      "duration": 1.72,
-      "start_time": 15.947811780615016,
-      "speaker_id": "1665"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7383/laugh/0010.wav",
-      "duration": 0.96,
-      "start_time": 21.276194125975035,
-      "speaker_id": "7383"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1665/laugh/0103.wav",
-      "duration": 1.28,
-      "start_time": 28.27426382538778,
-      "speaker_id": "1665"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010035.json b/conversations/conv_010035.json
deleted file mode 100644
index f9dd7145bad3d8eabdde4a943c198160c16a7885..0000000000000000000000000000000000000000
--- a/conversations/conv_010035.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.160596042940619,
-      "duration": 4.160596042940619,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5909-107621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-107621.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.552475005185805,
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-      "overlap": false,
-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 64209,
-      "overlap": true,
-      "utterance_id": "5909-107621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-107621.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 66569
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41611.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5909-287837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-287837.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-      "start_time": 18.105471883862194,
-      "speaker_id": "1714"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010039.json b/conversations/conv_010039.json
deleted file mode 100644
index b7de60c877cef4c7a2788d176f404ea9c59191e6..0000000000000000000000000000000000000000
--- a/conversations/conv_010039.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1757-128103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128103.flac |",
-      "real_speaker_id": "1757",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 17.99884168276067,
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-      "duration_frames": 109248,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 103341
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.014251896356342,
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-      "overlap": false,
-      "utterance_id": "1757-128103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128103.flac |",
-      "real_speaker_id": "1757",
-      "position_frames": 79338
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.772076026449305,
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-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 212589
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010042.json b/conversations/conv_010042.json
deleted file mode 100644
index 48b5fb0d6b0ef4b60fea3425040cbf636aaf5ae3..0000000000000000000000000000000000000000
--- a/conversations/conv_010042.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7959-109185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109185.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
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-      "real_speaker_id": "7120",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109185.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 77900
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7959-109176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109176.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.880292220430764,
-      "end_time": 32.0,
-      "duration": 3.119707779569236,
-      "start_frame": 462084,
-      "duration_frames": 49915,
-      "overlap": false,
-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 81032
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
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-      "speaker_id": "7120"
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-      "duration": 0.96,
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010054.json b/conversations/conv_010054.json
deleted file mode 100644
index f8f6f9520ceed39a909c80e1757f01a63a05b3b9..0000000000000000000000000000000000000000
--- a/conversations/conv_010054.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.139984960404608,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.291755041137984,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6399-278849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278849.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.61951776722206,
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-      "utterance_id": "544-121090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.732321646523527,
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-      "duration_frames": 82555,
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-      "utterance_id": "6399-278846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278846.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.263396081434458,
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-      "utterance_id": "544-121090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 93311
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.798776681374463,
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-      "duration": 5.856310805313724,
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-      "utterance_id": "544-121090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 173075
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6399-278846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278846.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 82555
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-  ],
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6399/laugh/0000.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/544/cough/0048.wav",
-      "duration": 1.24,
-      "start_time": 21.01602074150691,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6399/laugh/0107.wav",
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-      "start_time": 31.22768851214932,
-      "speaker_id": "6399"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010058.json b/conversations/conv_010058.json
deleted file mode 100644
index b78300378a51a1688d5f57d83c03bba20925468d..0000000000000000000000000000000000000000
--- a/conversations/conv_010058.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.572189308642318,
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-      "start_frame": 0,
-      "duration_frames": 105155,
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-      "utterance_id": "6550-53320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53320.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8468-286673.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.144267742758913,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8468-294887.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "6550"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010059.json b/conversations/conv_010059.json
deleted file mode 100644
index 90464d9fae6e8c422be177b505697e57f4517251..0000000000000000000000000000000000000000
--- a/conversations/conv_010059.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2769-176263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2769-176263.flac |",
-      "real_speaker_id": "2769",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.751298851064112,
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-      "utterance_id": "7239-63500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.169896944837948,
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-      "utterance_id": "2533-149939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.079051785206566,
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-      "duration": 6.068790222724887,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2769-176263.flac |",
-      "real_speaker_id": "2769",
-      "position_frames": 84271
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2533-149939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 111905
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-  "paralinguistic_events": [
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-      "duration": 1.06,
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-      "speaker_id": "2533"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010062.json b/conversations/conv_010062.json
deleted file mode 100644
index 26b3bf2536bf6059da6034085a83af6e63077586..0000000000000000000000000000000000000000
--- a/conversations/conv_010062.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8066-114256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-114256.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
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-      "real_speaker_id": "1648",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4863.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 86487
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 97334
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "8066-114256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-114256.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 88951
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010065.json b/conversations/conv_010065.json
deleted file mode 100644
index 28f4e47879c8b1595cf18c077f5e2d6b894fa4e1..0000000000000000000000000000000000000000
--- a/conversations/conv_010065.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "16-122828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122828.flac |",
-      "real_speaker_id": "16",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-163935.flac |",
-      "real_speaker_id": "1335",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122827.flac |",
-      "real_speaker_id": "16",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
-      "real_speaker_id": "202",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.5309446961897,
-      "end_time": 24.84144834776706,
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-      "duration_frames": 84968,
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-      "utterance_id": "16-122827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122827.flac |",
-      "real_speaker_id": "16",
-      "position_frames": 72342
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 6.052121411363885,
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-      "overlap": false,
-      "utterance_id": "202-122857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-122857.flac |",
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-  "background_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010073.json b/conversations/conv_010073.json
deleted file mode 100644
index c103ae64b5e99f6c8dc7f9d432b48b6da6a58b9d..0000000000000000000000000000000000000000
--- a/conversations/conv_010073.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1175-126221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1175-126221.flac |",
-      "real_speaker_id": "1175",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.407151762345537,
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-      "utterance_id": "789-153215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153215.flac |",
-      "real_speaker_id": "789",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153211.flac |",
-      "real_speaker_id": "789",
-      "position_frames": 0
-    }
-  ],
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-      "event_class": "Blender",
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-      "speaker_id": "789"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010074.json b/conversations/conv_010074.json
deleted file mode 100644
index 2320117ae8b35e976c06963728eff68488208962..0000000000000000000000000000000000000000
--- a/conversations/conv_010074.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2045-158081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2045-158081.flac |",
-      "real_speaker_id": "2045",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-145713.flac |",
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-      "real_speaker_id": "2045",
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\ No newline at end of file
diff --git a/conversations/conv_010078.json b/conversations/conv_010078.json
deleted file mode 100644
index 02653220e8c438ea3126fdcc0d710ee40ac35312..0000000000000000000000000000000000000000
--- a/conversations/conv_010078.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "331",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-132019.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274125.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 81175
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-132019.flac |",
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-      "position_frames": 50036
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-  ],
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-      "event_class": "Dog",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010081.json b/conversations/conv_010081.json
deleted file mode 100644
index 2d2449bf2399dc70ab66de65fc3798630eec4b72..0000000000000000000000000000000000000000
--- a/conversations/conv_010081.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2393/laugh/0094.wav",
-      "duration": 0.736487284394584,
-      "start_time": 31.263512715605415,
-      "speaker_id": "2393"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010097.json b/conversations/conv_010097.json
deleted file mode 100644
index 0d7fd21ac9d1c16f87917ca35e367c1175357d24..0000000000000000000000000000000000000000
--- a/conversations/conv_010097.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.730607054362737,
-      "duration": 6.730607054362737,
-      "start_frame": 0,
-      "duration_frames": 107689,
-      "overlap": false,
-      "utterance_id": "5076-287393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-287393.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.650258528754607,
-      "end_time": 13.649349109134844,
-      "duration": 5.999090580380237,
-      "start_frame": 122404,
-      "duration_frames": 95985,
-      "overlap": false,
-      "utterance_id": "8808-295459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-295459.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.151850872387094,
-      "end_time": 19.034656810997937,
-      "duration": 4.882805938610842,
-      "start_frame": 226429,
-      "duration_frames": 78124,
-      "overlap": false,
-      "utterance_id": "5076-61727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-61727.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.603826018529986,
-      "end_time": 24.214864259041168,
-      "duration": 4.611038240511181,
-      "start_frame": 313661,
-      "duration_frames": 73776,
-      "overlap": false,
-      "utterance_id": "8808-295459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-295459.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 95985
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.57398983048106,
-      "end_time": 30.376590630322646,
-      "duration": 5.802600799841585,
-      "start_frame": 393183,
-      "duration_frames": 92841,
-      "overlap": false,
-      "utterance_id": "5076-287393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-287393.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 107689
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.608893187206483,
-      "end_time": 32.0,
-      "duration": 1.3911068127935167,
-      "start_frame": 489742,
-      "duration_frames": 22257,
-      "overlap": false,
-      "utterance_id": "3571-173554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173554.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
-      "duration": 3.9838243321398426,
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5076/laugh/0081.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "5076"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5076/laugh/0022.wav",
-      "duration": 0.7694342566854273,
-      "start_time": 14.42840520051215,
-      "speaker_id": "5076"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5076/laugh/0099.wav",
-      "duration": 1.18,
-      "start_time": 23.191040783146676,
-      "speaker_id": "5076"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5076/cough/0069.wav",
-      "duration": 0.41733389136019466,
-      "start_time": 30.570761257795244,
-      "speaker_id": "5076"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010107.json b/conversations/conv_010107.json
deleted file mode 100644
index d31d7b3bc7b62505803714a15ae94cc8925e0d08..0000000000000000000000000000000000000000
--- a/conversations/conv_010107.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.369978848111206,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.988888321311962,
-      "duration": 4.988888321311962,
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-      "duration_frames": 79822,
-      "overlap": false,
-      "utterance_id": "205-159056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-159056.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.4501076467591245,
-      "end_time": 10.586098353194206,
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-      "utterance_id": "252-140215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-140215.flac |",
-      "real_speaker_id": "252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.885401033878658,
-      "end_time": 16.712164259601913,
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-      "duration_frames": 93228,
-      "overlap": false,
-      "utterance_id": "6120-56179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6120-56179.flac |",
-      "real_speaker_id": "6120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.797429609505286,
-      "end_time": 22.942770046983682,
-      "duration": 5.145340437478396,
-      "start_frame": 284758,
-      "duration_frames": 82325,
-      "overlap": false,
-      "utterance_id": "205-157088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-157088.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.796412997622014,
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-      "duration_frames": 107463,
-      "overlap": true,
-      "utterance_id": "252-29350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-29350.flac |",
-      "real_speaker_id": "252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.32471796286529,
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-      "duration_frames": 16724,
-      "overlap": true,
-      "utterance_id": "205-157088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-157088.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 82325
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_10.wav",
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/205/cough/0026.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/252/laugh/0020.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/205/cough/0104.wav",
-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "205"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010111.json b/conversations/conv_010111.json
deleted file mode 100644
index b2ed25a70287346b38c29d3de0f355b98e4cb421..0000000000000000000000000000000000000000
--- a/conversations/conv_010111.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.4015586599164855,
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-      "duration_frames": 102424,
-      "overlap": false,
-      "utterance_id": "7113-86041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "5022-29405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29405.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 102424
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.79209420590038,
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-      "utterance_id": "1065-134611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134611.flac |",
-      "real_speaker_id": "1065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.49726557193754,
-      "end_time": 28.03543121940119,
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-      "utterance_id": "5022-29411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29411.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.578013320603812,
-      "end_time": 32.0,
-      "duration": 3.4219866793961877,
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-      "utterance_id": "7113-86041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 194741
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
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-      "start_time": 22.750770056845347
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7113/laugh/0106.wav",
-      "duration": 1.3472327516912102,
-      "start_time": 17.71443872417652,
-      "speaker_id": "7113"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010120.json b/conversations/conv_010120.json
deleted file mode 100644
index e72ff431cb428d642d10cea4e223b9251235b99d..0000000000000000000000000000000000000000
--- a/conversations/conv_010120.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.060560294200484,
-      "duration": 5.060560294200484,
-      "start_frame": 0,
-      "duration_frames": 80968,
-      "overlap": false,
-      "utterance_id": "6506-73020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-73020.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.979782540197343,
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-      "duration_frames": 70114,
-      "overlap": false,
-      "utterance_id": "8080-3961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-3961.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 54388,
-      "overlap": false,
-      "utterance_id": "8080-274558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-274558.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.266840606661633,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-140654.flac |",
-      "real_speaker_id": "1392",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 54388
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6506/laugh/0085.wav",
-      "duration": 0.7972586807495612,
-      "start_time": 24.612354092409518,
-      "speaker_id": "6506"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010127.json b/conversations/conv_010127.json
deleted file mode 100644
index 3fafea77200c488647a7c32a0173db3678bf22aa..0000000000000000000000000000000000000000
--- a/conversations/conv_010127.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.13651586628517,
-      "duration": 5.13651586628517,
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-      "overlap": false,
-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.964361684164664,
-      "end_time": 8.900399403736907,
-      "duration": 3.9360377195722434,
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-      "duration_frames": 62976,
-      "overlap": true,
-      "utterance_id": "7339-86804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7339-86804.flac |",
-      "real_speaker_id": "7339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.220020986831297,
-      "end_time": 15.815209689197268,
-      "duration": 5.595188702365969,
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-      "overlap": false,
-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 82184
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.979493799943008,
-      "end_time": 20.22868637760902,
-      "duration": 3.2491925776660113,
-      "start_frame": 271671,
-      "duration_frames": 51987,
-      "overlap": false,
-      "utterance_id": "6359-64713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
-      "real_speaker_id": "6359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.44632732654471,
-      "end_time": 27.369512799740903,
-      "duration": 6.923185473196192,
-      "start_frame": 327141,
-      "duration_frames": 110770,
-      "overlap": false,
-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 171707
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.93928952596149,
-      "end_time": 32.0,
-      "duration": 4.060710474038508,
-      "start_frame": 447028,
-      "duration_frames": 64971,
-      "overlap": false,
-      "utterance_id": "7339-86765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7339-86765.flac |",
-      "real_speaker_id": "7339",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 24.30717084910725,
-      "start_time": 0.274511540569478
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.958877031655476,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 26.368685667605185
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_010131.json b/conversations/conv_010131.json
deleted file mode 100644
index 44acc7dceaa3a5ec6ba47169169c7c858b8ad959..0000000000000000000000000000000000000000
--- a/conversations/conv_010131.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.94813890983339,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8623692251068205,
-      "duration": 3.8623692251068205,
-      "start_frame": 0,
-      "duration_frames": 61797,
-      "overlap": false,
-      "utterance_id": "1736-152007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-152007.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.992965853877664,
-      "end_time": 9.007434438574851,
-      "duration": 4.0144685846971875,
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-      "overlap": false,
-      "utterance_id": "6947-53262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53262.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.350357219369926,
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-      "utterance_id": "1736-142281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-142281.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.204892950850127,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53262.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 64231
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration_frames": 54812,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-152007.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 61797
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 22.93186131021042,
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-      "overlap": true,
-      "utterance_id": "474-134809",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-134809.flac |",
-      "real_speaker_id": "474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.380263180371326,
-      "end_time": 31.94813890983339,
-      "duration": 4.567875729462064,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-152007.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 116609
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
-      "duration": 2.335909354328277,
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-  ],
-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1736/laugh/0094.wav",
-      "duration": 1.4,
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-    },
-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 9.1124218392012,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 0.8,
-      "start_time": 19.16065222248436,
-      "speaker_id": "6947"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1736/cough/0049.wav",
-      "duration": 1.064765751001178,
-      "start_time": 18.23379174212315,
-      "speaker_id": "1736"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1736/laugh/0118.wav",
-      "duration": 0.8789777322887213,
-      "start_time": 26.35456507904375,
-      "speaker_id": "1736"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010136.json b/conversations/conv_010136.json
deleted file mode 100644
index 82f3869c3da6007b355c4c41575c8b8d12e041b3..0000000000000000000000000000000000000000
--- a/conversations/conv_010136.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3723-171115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171115.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.840863839450293,
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-      "utterance_id": "8776-270778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "3723-171631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171631.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.871563274182137,
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-      "utterance_id": "8776-270778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
-      "position_frames": 59915
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.090379258976746,
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-      "overlap": false,
-      "utterance_id": "3857-182317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182317.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.363202311741304,
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-      "overlap": false,
-      "utterance_id": "3857-182315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182315.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.533685464328052,
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3857/laugh/0025.wav",
-      "duration": 1.0611630684662532,
-      "start_time": 27.1891602920834,
-      "speaker_id": "3857"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010146.json b/conversations/conv_010146.json
deleted file mode 100644
index 691d9f6b275045be515e29b8b8ec43057ae13097..0000000000000000000000000000000000000000
--- a/conversations/conv_010146.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.505766079479876,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "3171-68344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-68344.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-68344.flac |",
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-    {
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-    {
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_13.wav",
-      "duration": 0.5375963718820862,
-      "start_time": 0.7680473817304437
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7059/cough/0000.wav",
-      "duration": 0.995297034694208,
-      "start_time": 4.649073184266788,
-      "speaker_id": "7059"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4071/laugh/0043.wav",
-      "duration": 1.3,
-      "start_time": 21.074608170063833,
-      "speaker_id": "4071"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3171/laugh/0041.wav",
-      "duration": 0.6962125041169007,
-      "start_time": 31.3037874958831,
-      "speaker_id": "3171"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010150.json b/conversations/conv_010150.json
deleted file mode 100644
index e9a871bb63f4c9726e24dca19c4c6b0c9fd8ca3f..0000000000000000000000000000000000000000
--- a/conversations/conv_010150.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.448044081637406,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.601727846941122,
-      "duration": 5.601727846941122,
-      "start_frame": 0,
-      "duration_frames": 89627,
-      "overlap": false,
-      "utterance_id": "5246-5084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.807681418214971,
-      "end_time": 10.337210686883823,
-      "duration": 4.529529268668853,
-      "start_frame": 92922,
-      "duration_frames": 72472,
-      "overlap": false,
-      "utterance_id": "1081-128618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.47916608987559,
-      "end_time": 16.51155720110011,
-      "duration": 6.032391111224521,
-      "start_frame": 167666,
-      "duration_frames": 96518,
-      "overlap": false,
-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.09196017669464,
-      "end_time": 21.98286331973967,
-      "duration": 4.890903143045032,
-      "start_frame": 273471,
-      "duration_frames": 78254,
-      "overlap": false,
-      "utterance_id": "1081-125237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-125237.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.315575192944863,
-      "end_time": 25.887282125405,
-      "duration": 3.57170693246014,
-      "start_frame": 357049,
-      "duration_frames": 57147,
-      "overlap": false,
-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 96518
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.93807694253864,
-      "end_time": 31.448044081637406,
-      "duration": 4.509967139098765,
-      "start_frame": 431009,
-      "duration_frames": 72159,
-      "overlap": false,
-      "utterance_id": "1081-128618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 72472
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
-      "duration": 3.1259959744264565,
-      "start_time": 19.27604026731578
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
-      "duration": 4.299369117639367,
-      "start_time": 1.9839214065077695
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5246/laugh/0046.wav",
-      "duration": 0.5970425937484645,
-      "start_time": 0,
-      "speaker_id": "5246"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1081/laugh/0025.wav",
-      "duration": 1.24,
-      "start_time": 10.533278336899569,
-      "speaker_id": "1081"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5269/laugh/0009.wav",
-      "duration": 1.1522865392470896,
-      "start_time": 9.307383464636164,
-      "speaker_id": "5269"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5269/cough/0011.wav",
-      "duration": 0.9166746735366111,
-      "start_time": 13.950544354490853,
-      "speaker_id": "5269"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1081/laugh/0076.wav",
-      "duration": 1.36,
-      "start_time": 15.481703656253384,
-      "speaker_id": "1081"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1081/cough/0094.wav",
-      "duration": 1.0746013272187709,
-      "start_time": 22.025722149496318,
-      "speaker_id": "1081"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010161.json b/conversations/conv_010161.json
deleted file mode 100644
index 2bb583ca48122c503f6b63a2b824edb578cdf38a..0000000000000000000000000000000000000000
--- a/conversations/conv_010161.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.18154363861734,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.625661708066264,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.169830457276602,
-      "end_time": 10.068056293885174,
-      "duration": 5.898225836608573,
-      "start_frame": 66717,
-      "duration_frames": 94371,
-      "overlap": true,
-      "utterance_id": "403-126855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.78310740581202,
-      "end_time": 18.219732059334433,
-      "duration": 6.436624653522415,
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-      "duration_frames": 102985,
-      "overlap": false,
-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 58010
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.6295629431715,
-      "end_time": 24.45321192650521,
-      "duration": 5.82364898333371,
-      "start_frame": 298073,
-      "duration_frames": 93178,
-      "overlap": false,
-      "utterance_id": "403-126855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 94371
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.99114840297637,
-      "end_time": 30.346063988573597,
-      "duration": 5.354915585597227,
-      "start_frame": 399858,
-      "duration_frames": 85678,
-      "overlap": false,
-      "utterance_id": "6127-53038",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-53038.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.907197219955755,
-      "end_time": 31.18154363861734,
-      "duration": 1.2743464186615867,
-      "start_frame": 478515,
-      "duration_frames": 20389,
-      "overlap": true,
-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 160995
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
-      "duration": 1.318219969958741,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/711/laugh/0082.wav",
-      "duration": 1.2427254898905622,
-      "start_time": 0.856196854652953,
-      "speaker_id": "711"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/711/cough/0023.wav",
-      "duration": 0.4735879162183507,
-      "start_time": 18.291433778859222,
-      "speaker_id": "711"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/403/cough/0088.wav",
-      "duration": 1.3592041022446895,
-      "start_time": 24.541054381070733,
-      "speaker_id": "403"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/711/laugh/0095.wav",
-      "duration": 0.9857352554151757,
-      "start_time": 31.014264744584825,
-      "speaker_id": "711"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/711/cough/0003.wav",
-      "duration": 0.3429021955554587,
-      "start_time": 31.27844224452773,
-      "speaker_id": "711"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010166.json b/conversations/conv_010166.json
deleted file mode 100644
index 5e7e03c97e65757f7fe54908d9ab968e4645a1a4..0000000000000000000000000000000000000000
--- a/conversations/conv_010166.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.553207509058599,
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-      "overlap": false,
-      "utterance_id": "1572-141718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.053906018535212,
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-      "utterance_id": "882-123266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123266.flac |",
-      "real_speaker_id": "882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.695847186179678,
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-      "overlap": false,
-      "utterance_id": "3118-5912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5912.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.88264075973419,
-      "end_time": 19.656160334382047,
-      "duration": 4.773519574647858,
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-      "duration_frames": 76376,
-      "overlap": false,
-      "utterance_id": "1572-141718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 88851
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.986673911440533,
-      "end_time": 24.637301540144733,
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-      "duration_frames": 74410,
-      "overlap": false,
-      "utterance_id": "3118-5911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5911.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.417854648137347,
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-      "overlap": false,
-      "utterance_id": "1572-141715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141715.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.392807951236293,
-      "end_time": 32.0,
-      "duration": 1.6071920487637072,
-      "start_frame": 486284,
-      "duration_frames": 25715,
-      "overlap": false,
-      "utterance_id": "3118-5909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5909.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_0.wav",
-      "duration": 1.116031746031746,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/882/cough/0048.wav",
-      "duration": 0.36283171754662497,
-      "start_time": 9.26366552335486,
-      "speaker_id": "882"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1572/laugh/0052.wav",
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-      "start_time": 18.23719828245754,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3118/laugh/0056.wav",
-      "duration": 1.52,
-      "start_time": 18.229552525475288,
-      "speaker_id": "3118"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1572/laugh/0033.wav",
-      "duration": 1.26,
-      "start_time": 23.9320510851159,
-      "speaker_id": "1572"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1572/cough/0033.wav",
-      "duration": 0.8560097366810671,
-      "start_time": 30.05523665051309,
-      "speaker_id": "1572"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3118/cough/0053.wav",
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-      "start_time": 30.937187649796986,
-      "speaker_id": "3118"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010170.json b/conversations/conv_010170.json
deleted file mode 100644
index adb628793be8c6751aa6ba26cbd524e6f3de8f5d..0000000000000000000000000000000000000000
--- a/conversations/conv_010170.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "3990-31915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31915.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31915.flac |",
-      "real_speaker_id": "3990",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3990/laugh/0029.wav",
-      "duration": 1.12,
-      "start_time": 18.082384829382615,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3990/laugh/0021.wav",
-      "duration": 1.4,
-      "start_time": 28.447048849213406,
-      "speaker_id": "3990"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010177.json b/conversations/conv_010177.json
deleted file mode 100644
index b5a2cec9eb08b00a5757f3b82854cb274c4aa92d..0000000000000000000000000000000000000000
--- a/conversations/conv_010177.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3885-7167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-7167.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279771.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134660.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279771.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-1193.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 30.355747685129124,
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-      "utterance_id": "949-162667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-162667.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "duration": 1.24,
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\ No newline at end of file
diff --git a/conversations/conv_010185.json b/conversations/conv_010185.json
deleted file mode 100644
index 75929536f1818a764efdfdc681b0c3072d3dda7d..0000000000000000000000000000000000000000
--- a/conversations/conv_010185.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-57195.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-140656.flac |",
-      "real_speaker_id": "1552",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-861.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5789-57195",
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-      "position_frames": 104522
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-  ],
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_010189.json b/conversations/conv_010189.json
deleted file mode 100644
index e60dce2f95c034d511d58bafc2e60c7750642957..0000000000000000000000000000000000000000
--- a/conversations/conv_010189.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "utterance_id": "8527-281131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "313",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 101513
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.89051655169502,
-      "end_time": 32.0,
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-      "start_frame": 414248,
-      "duration_frames": 97751,
-      "overlap": false,
-      "utterance_id": "2975-151995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
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-      "position_frames": 111160
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_010193.json b/conversations/conv_010193.json
deleted file mode 100644
index 745aa11b490eec732b447dbdb2067a0a2c1e41f5..0000000000000000000000000000000000000000
--- a/conversations/conv_010193.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
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-    {
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-      "real_speaker_id": "7327",
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-    {
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-      "real_speaker_id": "1259",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-96492.flac |",
-      "real_speaker_id": "7327",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.205530116003583,
-      "end_time": 31.79490617958563,
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-      "start_frame": 403288,
-      "duration_frames": 105430,
-      "overlap": false,
-      "utterance_id": "5172-29468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 51469
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
-      "duration": 0.6683219954648526,
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 9.963907496560488,
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-      "event_class": "cough",
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-      "duration": 1.1011443643553336,
-      "start_time": 21.08350690739746,
-      "speaker_id": "7327"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010198.json b/conversations/conv_010198.json
deleted file mode 100644
index 1e76613cd5cceba40b9fb9edc29d8d77c7db5245..0000000000000000000000000000000000000000
--- a/conversations/conv_010198.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.09763898382838,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.803613634158976,
-      "duration": 6.803613634158976,
-      "start_frame": 0,
-      "duration_frames": 108857,
-      "overlap": false,
-      "utterance_id": "6943-64094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-64094.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.101214406286309,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4122-11963.flac |",
-      "real_speaker_id": "4122",
-      "position_frames": 0
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-      "start_time": 11.23746179474034,
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-      "overlap": false,
-      "utterance_id": "31-121971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121971.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85172.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.081009579124572,
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-      "utterance_id": "31-121972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121972.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.444463329931875,
-      "end_time": 31.09763898382838,
-      "duration": 4.653175653896504,
-      "start_frame": 423111,
-      "duration_frames": 74450,
-      "overlap": true,
-      "utterance_id": "4122-11963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4122-11963.flac |",
-      "real_speaker_id": "4122",
-      "position_frames": 58283
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "31"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010202.json b/conversations/conv_010202.json
deleted file mode 100644
index 0bc93ac1e79beaf5afd1f5ffece9ecd870d683d2..0000000000000000000000000000000000000000
--- a/conversations/conv_010202.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1374-133833",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1374-133833.flac |",
-      "real_speaker_id": "1374",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.016447260993,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1374-133833.flac |",
-      "real_speaker_id": "1374",
-      "position_frames": 92325
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.377505205494167,
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-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 64994
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.60987845083483,
-      "end_time": 28.487083843966165,
-      "duration": 5.877205393131335,
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-      "overlap": false,
-      "utterance_id": "1374-133833",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1374-133833.flac |",
-      "real_speaker_id": "1374",
-      "position_frames": 184701
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.594687582286856,
-      "end_time": 32.0,
-      "duration": 3.4053124177131444,
-      "start_frame": 457515,
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-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 143689
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1374/laugh/0050.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1374/laugh/0034.wav",
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-      "start_time": 28.5728274415887,
-      "speaker_id": "1374"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1374/cough/0059.wav",
-      "duration": 0.4282624331889443,
-      "start_time": 22.11510420871174,
-      "speaker_id": "1374"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5837/laugh/0058.wav",
-      "duration": 1.2111011780177405,
-      "start_time": 27.104916116784143,
-      "speaker_id": "5837"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010209.json b/conversations/conv_010209.json
deleted file mode 100644
index c8b763ddb046bd8a5dd05f2f5d5676b3c7b64062..0000000000000000000000000000000000000000
--- a/conversations/conv_010209.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.805932780993985,
-      "duration": 6.805932780993985,
-      "start_frame": 0,
-      "duration_frames": 108894,
-      "overlap": false,
-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.183618848253633,
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-      "duration": 4.784965145080867,
-      "start_frame": 114937,
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-      "overlap": false,
-      "utterance_id": "1851-148962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.799543687277207,
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-      "duration": 4.253763451406129,
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-      "duration_frames": 68060,
-      "overlap": false,
-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.250496061323513,
-      "end_time": 24.554465040781714,
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-      "overlap": false,
-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 108894
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration_frames": 73716,
-      "overlap": true,
-      "utterance_id": "1851-148962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 76559
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.858149780177897,
-      "end_time": 32.0,
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-      "duration_frames": 18269,
-      "overlap": false,
-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 209757
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-      "start_time": 12.14302801347399
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1851/laugh/0013.wav",
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-      "start_time": 12.114914772744125,
-      "speaker_id": "1851"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/laugh/0048.wav",
-      "duration": 1.44,
-      "start_time": 11.32734693707525,
-      "speaker_id": "2013"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8699/laugh/0022.wav",
-      "duration": 1.2,
-      "start_time": 16.88135600272163,
-      "speaker_id": "8699"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8699/cough/0040.wav",
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-      "start_time": 20.436108012925892,
-      "speaker_id": "8699"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010214.json b/conversations/conv_010214.json
deleted file mode 100644
index a4e313ca400cd955fc2069ca5e908213d61ebe38..0000000000000000000000000000000000000000
--- a/conversations/conv_010214.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_010218.json b/conversations/conv_010218.json
deleted file mode 100644
index 4bdd83ab44a45d95f0992908ac33ae63ad9399a6..0000000000000000000000000000000000000000
--- a/conversations/conv_010218.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
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-  "num_speakers": 3,
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_010219.json b/conversations/conv_010219.json
deleted file mode 100644
index 7472ca7a4c96b269e89465f38330d8237fc7a991..0000000000000000000000000000000000000000
--- a/conversations/conv_010219.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_010222.json b/conversations/conv_010222.json
deleted file mode 100644
index c50a69c8a637fcbe9d79ed46ed1a3e20e6edac8c..0000000000000000000000000000000000000000
--- a/conversations/conv_010222.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "start_time": 0,
-      "speaker_id": "8625"
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-      "event_class": "cough",
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-      "speaker_id": "1252"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1252/laugh/0055.wav",
-      "duration": 1.28,
-      "start_time": 21.0231453346095,
-      "speaker_id": "1252"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8625/laugh/0034.wav",
-      "duration": 0.8482116222859561,
-      "start_time": 22.474379953428528,
-      "speaker_id": "8625"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010234.json b/conversations/conv_010234.json
deleted file mode 100644
index 437aa1c2b9b94f8a692469c704a4a86f2443f409..0000000000000000000000000000000000000000
--- a/conversations/conv_010234.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.490188194647511,
-      "duration": 4.490188194647511,
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-      "overlap": false,
-      "utterance_id": "6906-65918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.988871405454982,
-      "end_time": 8.426787069201717,
-      "duration": 3.4379156637467356,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156154.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.608672308206351,
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-      "utterance_id": "4297-13006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13006.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.43993742143938,
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-      "utterance_id": "4297-13009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13009.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.144720231160736,
-      "end_time": 28.72561125382637,
-      "duration": 6.580891022665632,
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-      "overlap": false,
-      "utterance_id": "6906-65918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 71843
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.39866466170413,
-      "end_time": 32.0,
-      "duration": 2.6013353382958684,
-      "start_frame": 470378,
-      "duration_frames": 41621,
-      "overlap": false,
-      "utterance_id": "2499-156155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156155.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 21.65093732751061,
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6906/laugh/0095.wav",
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-      "duration": 1.04,
-      "start_time": 3.796213585644814,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.6173491078347121,
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-      "speaker_id": "6906"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010235.json b/conversations/conv_010235.json
deleted file mode 100644
index bde3653f5ccb0e40c757deebd8fc7d33e6f8055a..0000000000000000000000000000000000000000
--- a/conversations/conv_010235.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.665627550672999,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130560.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 79511
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.039949898958987,
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-      "overlap": false,
-      "utterance_id": "1365-134830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134830.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.682909215398695,
-      "end_time": 26.004160247698483,
-      "duration": 3.321251032299787,
-      "start_frame": 362926,
-      "duration_frames": 53140,
-      "overlap": false,
-      "utterance_id": "510-130103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130103.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.391058268786512,
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-      "duration": 5.608941731213488,
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-      "duration_frames": 89743,
-      "overlap": false,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 178337
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/510/laugh/0029.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5735/laugh/0037.wav",
-      "duration": 0.924840060599313,
-      "start_time": 26.42003056097286,
-      "speaker_id": "5735"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010238.json b/conversations/conv_010238.json
deleted file mode 100644
index 955fd76fd65699a9b1188b45586159043bd3d709..0000000000000000000000000000000000000000
--- a/conversations/conv_010238.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1870-148296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-148296.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "duration_frames": 70764,
-      "overlap": false,
-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1870",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 152129
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.491288496013603,
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-      "utterance_id": "6925-80680",
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-      "real_speaker_id": "6925",
-      "position_frames": 226959
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6925/cough/0062.wav",
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-      "speaker_id": "6925"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010243.json b/conversations/conv_010243.json
deleted file mode 100644
index 7dd23badba8e15388332c8ce5ca903576b492e9c..0000000000000000000000000000000000000000
--- a/conversations/conv_010243.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.100078653271705,
-  "num_speakers": 2,
-  "overlap_rate": 0.42857142857142855,
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-      "utterance_id": "1601-136848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136848.flac |",
-      "real_speaker_id": "1601",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121969.flac |",
-      "real_speaker_id": "31",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1601-136862",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121972.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136848.flac |",
-      "real_speaker_id": "1601",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121969.flac |",
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-      "position_frames": 96610
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "31"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010248.json b/conversations/conv_010248.json
deleted file mode 100644
index 8f7aeff60a2514b6af9ea467dd477404e0f51b84..0000000000000000000000000000000000000000
--- a/conversations/conv_010248.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.54639650434877,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.732453299146395,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-144965.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.778060828554278,
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-      "utterance_id": "7644-104722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.688992667489389,
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-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 71275
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.680230723237973,
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-      "duration": 4.720540788134869,
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-      "duration_frames": 75528,
-      "overlap": false,
-      "utterance_id": "7644-104722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 96376
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.130735036148977,
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-      "duration": 3.415661468199792,
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-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 150657
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
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-      "event_class": "laugh",
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-      "start_time": 0,
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\ No newline at end of file
diff --git a/conversations/conv_010255.json b/conversations/conv_010255.json
deleted file mode 100644
index e7e2f7102641c0abaa50593ab64d4aa2bf8ffd6e..0000000000000000000000000000000000000000
--- a/conversations/conv_010255.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135022.flac |",
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-      "utterance_id": "8838-298546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298546.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 89778
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.40103848778511,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.160112544806246,
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-      "duration": 1.8398874551937539,
-      "start_frame": 482561,
-      "duration_frames": 29438,
-      "overlap": false,
-      "utterance_id": "1313-136054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-136054.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "duration": 1.12,
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-      "speaker_id": "1313"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010259.json b/conversations/conv_010259.json
deleted file mode 100644
index b5ab1d301dc8b465de36dc6236b91d8115ede7fb..0000000000000000000000000000000000000000
--- a/conversations/conv_010259.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7408-255943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-255943.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.02352725231488,
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-      "utterance_id": "3240-131232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131232.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4195-186236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4195-186236.flac |",
-      "real_speaker_id": "4195",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4195-17507",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7408-256039",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010262.json b/conversations/conv_010262.json
deleted file mode 100644
index d37292f27f4833b036ffeb6d744806f4bab58e87..0000000000000000000000000000000000000000
--- a/conversations/conv_010262.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.774769277098883,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.775140376796678,
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-      "start_frame": 0,
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-      "utterance_id": "7337-89742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-89742.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "6637",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6637-69607.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010263.json b/conversations/conv_010263.json
deleted file mode 100644
index 05c6b87bf88b3ddf530184e68b69b373ff2bec1d..0000000000000000000000000000000000000000
--- a/conversations/conv_010263.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-280250.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-276907.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
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-    {
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-      "utterance_id": "5355-35477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-35477.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.21133994042473,
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-      "utterance_id": "8771-294523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
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-      "position_frames": 82918
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010275.json b/conversations/conv_010275.json
deleted file mode 100644
index 2d46d5c20f3c6c8723af537cb3ea72e5652fa58e..0000000000000000000000000000000000000000
--- a/conversations/conv_010275.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7515-100431.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121770.flac |",
-      "real_speaker_id": "1274",
-      "position_frames": 89121
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-}
\ No newline at end of file
diff --git a/conversations/conv_010279.json b/conversations/conv_010279.json
deleted file mode 100644
index ae6e3bc58e1fc8bbc9b9fca62a26fd0ff35517e4..0000000000000000000000000000000000000000
--- a/conversations/conv_010279.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.514456060317514,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "36-16602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "984",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "36",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.15558422635607,
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "speaker_id": "9023"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010280.json b/conversations/conv_010280.json
deleted file mode 100644
index 85607df76d30fcac8e82a8155749219cc99555d0..0000000000000000000000000000000000000000
--- a/conversations/conv_010280.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6084-2159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
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-      "position_frames": 209547
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-      "segment_id": "seg0006",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "speaker_id": "6084"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010296.json b/conversations/conv_010296.json
deleted file mode 100644
index 88d536caa3102c37ba26dc763523cab727679df8..0000000000000000000000000000000000000000
--- a/conversations/conv_010296.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7030-64588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.022167245608124,
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-      "utterance_id": "7967-104986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-104986.flac |",
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-      "utterance_id": "5567-22441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22441.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.57106183893591,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 106721
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 192416
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_010306.json b/conversations/conv_010306.json
deleted file mode 100644
index a037d79847f822a6aa1fdee0481dd6a452ffc104..0000000000000000000000000000000000000000
--- a/conversations/conv_010306.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1708-142415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142415.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142415.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 73104
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142415.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 160378
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1708-142417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142417.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "event_class": "cough",
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-      "duration": 1.4,
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-}
\ No newline at end of file
diff --git a/conversations/conv_010310.json b/conversations/conv_010310.json
deleted file mode 100644
index 78140fe141d1133d60ab3ae2e18991da8ec5170a..0000000000000000000000000000000000000000
--- a/conversations/conv_010310.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1094-157767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157767.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.839562566891884,
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-      "utterance_id": "925-8140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/925-8140.flac |",
-      "real_speaker_id": "925",
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "1094-157768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157768.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.927827835775304,
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-      "utterance_id": "925-8141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/925-8141.flac |",
-      "real_speaker_id": "925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "1094",
-      "position_frames": 87884
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "925-8141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/925-8141.flac |",
-      "real_speaker_id": "925",
-      "position_frames": 107326
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_010326.json b/conversations/conv_010326.json
deleted file mode 100644
index e43d8287e808192b12fcbbf58b7d7487291b7c23..0000000000000000000000000000000000000000
--- a/conversations/conv_010326.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration_frames": 93963,
-      "overlap": false,
-      "utterance_id": "6081-42010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-42010.flac |",
-      "real_speaker_id": "6081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "segment_id": "seg0004",
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-      "start_time": 22.655603075526834,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-128265.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-41997.flac |",
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-  "background_events": [
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-      "event_class": "Blender",
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-      "speaker_id": "6081"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010327.json b/conversations/conv_010327.json
deleted file mode 100644
index bdf707a426ba9a6c31cc8507ca2b42920dc8d67d..0000000000000000000000000000000000000000
--- a/conversations/conv_010327.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.460238305114256,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6215-68888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-68888.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.14152474739357,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-41615.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.401132714230776,
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-      "utterance_id": "937-148985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-148985.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.030893469813286,
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-      "utterance_id": "5561-39621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-39621.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.828028672280407,
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-      "utterance_id": "5561-41616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-41616.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "937-132849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-132849.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "start_time": 0,
-      "speaker_id": "6215"
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-    {
-      "event_class": "laugh",
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-      "start_time": 22.75331202955463,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010330.json b/conversations/conv_010330.json
deleted file mode 100644
index dbf8a2f3d9cd62fd95213da1e5ad5a05eacc7de3..0000000000000000000000000000000000000000
--- a/conversations/conv_010330.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.000297026563086,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
-      "position_frames": 70827
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8058-99402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/549/laugh/0030.wav",
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-      "speaker_id": "549"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010347.json b/conversations/conv_010347.json
deleted file mode 100644
index 417efb8c469b13482c3ce43dfb82b3a3a3d89f68..0000000000000000000000000000000000000000
--- a/conversations/conv_010347.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.718781706572646,
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-      "overlap": false,
-      "utterance_id": "4277-185519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185519.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.993591695209905,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4654.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3138-173544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.61382786617168,
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-      "duration_frames": 96795,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4662.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.67776665981432,
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-      "utterance_id": "3138-173544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 86045
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "end_time": 32.0,
-      "duration": 1.8625594444414375,
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-      "duration_frames": 29800,
-      "overlap": false,
-      "utterance_id": "4277-185517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185517.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-      "start_time": 20.60620913373275
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_010351.json b/conversations/conv_010351.json
deleted file mode 100644
index 5c1e153ccdc983cab81f89154087a33fb6e06eb4..0000000000000000000000000000000000000000
--- a/conversations/conv_010351.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.696989266554184,
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-      "utterance_id": "3654-171138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171138.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.180462651465889,
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-      "duration_frames": 89790,
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-      "utterance_id": "5672-88363",
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-      "start_time": 17.524472143828103,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101258.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5672-88367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88367.flac |",
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-      "event_class": "laugh",
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-      "speaker_id": "5672"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010367.json b/conversations/conv_010367.json
deleted file mode 100644
index 34f4d1ede835f9bd189f739236b7c8435e18c101..0000000000000000000000000000000000000000
--- a/conversations/conv_010367.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 86900
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2512-157242.flac |",
-      "real_speaker_id": "2512",
-      "position_frames": 0
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-      "real_speaker_id": "1780",
-      "position_frames": 154012
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
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-  "background_events": [
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_010370.json b/conversations/conv_010370.json
deleted file mode 100644
index 94f0e24a8233b700f6aefc76555ab3a2c310075f..0000000000000000000000000000000000000000
--- a/conversations/conv_010370.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-1187.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-46877.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 156447
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/487/laugh/0012.wav",
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-      "start_time": 20.19324827988506,
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-}
\ No newline at end of file
diff --git a/conversations/conv_010371.json b/conversations/conv_010371.json
deleted file mode 100644
index 7ce8763178237bd5560d86ca243bfdb1dedd2398..0000000000000000000000000000000000000000
--- a/conversations/conv_010371.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "453-3040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-3040.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.5870216545711875,
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-      "utterance_id": "2063-148525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148525.flac |",
-      "real_speaker_id": "2063",
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-      "utterance_id": "4116-3582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-3582.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "2063-148526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148526.flac |",
-      "real_speaker_id": "2063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148525.flac |",
-      "real_speaker_id": "2063",
-      "position_frames": 104165
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.028986312380983,
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-      "duration": 2.971013687619017,
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-      "duration_frames": 47536,
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-      "utterance_id": "2063-148526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148526.flac |",
-      "real_speaker_id": "2063",
-      "position_frames": 87274
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
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-  "paralinguistic_events": [
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-      "start_time": 16.611002613030127,
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-}
\ No newline at end of file
diff --git a/conversations/conv_010384.json b/conversations/conv_010384.json
deleted file mode 100644
index d476b3283e3b63140558e1bfe4b3e6b2e64b568a..0000000000000000000000000000000000000000
--- a/conversations/conv_010384.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.844356507903484,
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-      "start_frame": 0,
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-      "utterance_id": "5401-102526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-102526.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.037304770065682,
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-      "duration_frames": 102492,
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-      "utterance_id": "5401-39508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39508.flac |",
-      "real_speaker_id": "5401",
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-      "utterance_id": "1878-122452",
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-      "utterance_id": "3245-62828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-62828.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39508.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 102492
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-102526.flac |",
-      "real_speaker_id": "5401",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "speaker_id": "1878"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010388.json b/conversations/conv_010388.json
deleted file mode 100644
index be5d06b38c6d6dbce8392eeba73f0e0de66a760d..0000000000000000000000000000000000000000
--- a/conversations/conv_010388.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3142-160977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
-      "real_speaker_id": "3142",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.327478715955451,
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-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.173146504780673,
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-      "utterance_id": "20-205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/20-205.flac |",
-      "real_speaker_id": "20",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.956915837978972,
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-      "utterance_id": "3142-160977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
-      "real_speaker_id": "3142",
-      "position_frames": 76155
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.945204256322658,
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-      "overlap": true,
-      "utterance_id": "4667-92224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92224.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.147760034756764,
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-      "duration": 2.8522399652432355,
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-      "overlap": false,
-      "utterance_id": "20-205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/20-205.flac |",
-      "real_speaker_id": "20",
-      "position_frames": 95218
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010392.json b/conversations/conv_010392.json
deleted file mode 100644
index 3c02218bf707ad78b77487256e90563a015d33ab..0000000000000000000000000000000000000000
--- a/conversations/conv_010392.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-121902.flac |",
-      "real_speaker_id": "159",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8464-282934.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-121891.flac |",
-      "real_speaker_id": "159",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.03610214186199,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8464-282934.flac |",
-      "real_speaker_id": "8464",
-      "position_frames": 69666
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-135897.flac |",
-      "real_speaker_id": "159",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_010404.json b/conversations/conv_010404.json
deleted file mode 100644
index e7cfdddfffde13bae117d090cd0207c2d2e8b090..0000000000000000000000000000000000000000
--- a/conversations/conv_010404.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "1914-121446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121446.flac |",
-      "real_speaker_id": "1914",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
-      "position_frames": 65815
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.90569784693931,
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-      "utterance_id": "1923-161972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161972.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.644995731162453,
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-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161972.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 53373
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-      "event_class": "Frying",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_2.wav",
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-      "start_time": 10.62535485012481
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_010408.json b/conversations/conv_010408.json
deleted file mode 100644
index 558ed60a0fad3812b849c8353a059414d243170c..0000000000000000000000000000000000000000
--- a/conversations/conv_010408.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 84708
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.405537199221804,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 269008
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-      "segment_id": "seg0005",
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-      "start_time": 26.73644637202557,
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-      "duration": 5.2635536279744315,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8855-302395.flac |",
-      "real_speaker_id": "8855",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "start_time": 4.986303111764988,
-      "speaker_id": "2638"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2638/laugh/0075.wav",
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-      "speaker_id": "2638"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010409.json b/conversations/conv_010409.json
deleted file mode 100644
index 4a11cc7e1b64f81ba81e5f02b6508fea21fcb97a..0000000000000000000000000000000000000000
--- a/conversations/conv_010409.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.022034490948635,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7354-87667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.52590749058442,
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-      "duration_frames": 72631,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-147045.flac |",
-      "real_speaker_id": "2010",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 80352
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.200914944963735,
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-      "utterance_id": "1618-220956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-220956.flac |",
-      "real_speaker_id": "1618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.66308570717841,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-147045.flac |",
-      "real_speaker_id": "2010",
-      "position_frames": 72631
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.398515248218306,
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-      "duration": 4.601484751781694,
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-      "duration_frames": 73623,
-      "overlap": false,
-      "utterance_id": "1618-32403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-32403.flac |",
-      "real_speaker_id": "1618",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-      "start_time": 30.68,
-      "speaker_id": "1618"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1618/cough/0040.wav",
-      "duration": 1.06,
-      "start_time": 30.94,
-      "speaker_id": "1618"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_010412.json b/conversations/conv_010412.json
deleted file mode 100644
index e3c95ca392627f863e7d1640a9fc2cc0373d2f30..0000000000000000000000000000000000000000
--- a/conversations/conv_010412.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8443-294707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "1693",
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-      "utterance_id": "8443-274756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-274756.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 88711,
-      "overlap": false,
-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 63692
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.75796361212623,
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-      "utterance_id": "8443-274756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-274756.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 80284
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.150680631687813,
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-      "duration": 3.8493193683121874,
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1693/laugh/0012.wav",
-      "duration": 1.14,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010423.json b/conversations/conv_010423.json
deleted file mode 100644
index 4b2fb81cc84814cb0fe827adffb625b8b74ac261..0000000000000000000000000000000000000000
--- a/conversations/conv_010423.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8443-274756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-274756.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.583100244055446,
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-      "duration_frames": 83017,
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-      "utterance_id": "4791-25378",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25378.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.730703503591673,
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-      "duration_frames": 93191,
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-      "utterance_id": "8443-294707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.06337034521483,
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-      "utterance_id": "8392-285237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "4791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4791-25379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25379.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 85689
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8392/cough/0028.wav",
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-      "start_time": 25.44429167951663,
-      "speaker_id": "8392"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4791/cough/0111.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4791/laugh/0056.wav",
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-      "start_time": 31.37526555147124,
-      "speaker_id": "4791"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010424.json b/conversations/conv_010424.json
deleted file mode 100644
index f0e667c004909a2c472be4a6705a5c4b2d2aa819..0000000000000000000000000000000000000000
--- a/conversations/conv_010424.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.174487666784042,
-      "duration": 5.174487666784042,
-      "start_frame": 0,
-      "duration_frames": 82791,
-      "overlap": false,
-      "utterance_id": "6115-58433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6115-58433.flac |",
-      "real_speaker_id": "6115",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-162130.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155949.flac |",
-      "real_speaker_id": "3072",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-162129.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-162129.flac |",
-      "real_speaker_id": "2673",
-      "position_frames": 56521
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.968055123030823,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155948.flac |",
-      "real_speaker_id": "3072",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 0.4945649914438725,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
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-    {
-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 31.12,
-      "speaker_id": "3072"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010428.json b/conversations/conv_010428.json
deleted file mode 100644
index db08abcb94655f306202faaccbe723b34d8b485e..0000000000000000000000000000000000000000
--- a/conversations/conv_010428.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.598134063820684,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 68726
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-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 87204
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.592003818274307,
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-      "duration_frames": 76309,
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-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 132729
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.029552307080603,
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-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 164222
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 30.8,
-      "speaker_id": "4362"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010432.json b/conversations/conv_010432.json
deleted file mode 100644
index 40ad2f94e4a7f64b8cbc6e271afc9b45ee01df11..0000000000000000000000000000000000000000
--- a/conversations/conv_010432.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "utterance_id": "7909-106370",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7909-106370.flac |",
-      "real_speaker_id": "7909",
-      "position_frames": 0
-    },
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-      "speaker_id": 2,
-      "start_time": 6.090008972204685,
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-      "utterance_id": "1298-1054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-1054.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "7909-106369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7909-106369.flac |",
-      "real_speaker_id": "7909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.587984196660503,
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-      "duration_frames": 54482,
-      "overlap": false,
-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.440425069929482,
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-      "overlap": true,
-      "utterance_id": "7909-106369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7909-106369.flac |",
-      "real_speaker_id": "7909",
-      "position_frames": 93200
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.32644590839952,
-      "end_time": 32.0,
-      "duration": 1.6735540916004794,
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-      "duration_frames": 26776,
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-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 54482
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
-      "duration": 0.30428571428571427,
-      "start_time": 16.26224026015554
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 9.750411080621216,
-      "speaker_id": "1298"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7909/laugh/0006.wav",
-      "duration": 1.24,
-      "start_time": 11.5944112044302,
-      "speaker_id": "7909"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010435.json b/conversations/conv_010435.json
deleted file mode 100644
index 544d7aea6c834c0dabb1265483e36dbc43a55717..0000000000000000000000000000000000000000
--- a/conversations/conv_010435.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.038677007927754,
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-      "start_frame": 0,
-      "duration_frames": 80618,
-      "overlap": false,
-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.733368050223943,
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-      "duration_frames": 88910,
-      "overlap": false,
-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 80618
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration": 6.699737742191912,
-      "start_frame": 196149,
-      "duration_frames": 107195,
-      "overlap": false,
-      "utterance_id": "123-25081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-25081.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.402987265494318,
-      "end_time": 25.930870452264664,
-      "duration": 6.527883186770348,
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-      "duration_frames": 104446,
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-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 169528
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.409401849387727,
-      "end_time": 32.0,
-      "duration": 5.590598150612273,
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-      "duration_frames": 89449,
-      "overlap": false,
-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 273974
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
-      "duration": 2.4975736961451247,
-      "start_time": 14.694464049516215
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/123/laugh/0033.wav",
-      "duration": 1.1603840293847805,
-      "start_time": 10.823255911950147,
-      "speaker_id": "123"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/123/cough/0120.wav",
-      "duration": 0.6902431878701545,
-      "start_time": 11.421368189194482,
-      "speaker_id": "123"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010445.json b/conversations/conv_010445.json
deleted file mode 100644
index b248081fa509e029030d74277dac601cb335b0e1..0000000000000000000000000000000000000000
--- a/conversations/conv_010445.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.62445046991895,
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-      "real_speaker_id": "1898",
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010449.json b/conversations/conv_010449.json
deleted file mode 100644
index 458f38e48ca18efdf29cd956dc88e74575c7c038..0000000000000000000000000000000000000000
--- a/conversations/conv_010449.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73990.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.305052848227372,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-138246.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-74002.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_010453.json b/conversations/conv_010453.json
deleted file mode 100644
index ef81fe767a1b274a9b98bbd5c63672e365194a81..0000000000000000000000000000000000000000
--- a/conversations/conv_010453.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010462.json b/conversations/conv_010462.json
deleted file mode 100644
index 80ad8619e80812be554c5202219e3df993a7af00..0000000000000000000000000000000000000000
--- a/conversations/conv_010462.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "231"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010465.json b/conversations/conv_010465.json
deleted file mode 100644
index 461a0842dd358d60292c809318f3200d90f55823..0000000000000000000000000000000000000000
--- a/conversations/conv_010465.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6175764165161457,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7525-92915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-92915.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7593321695988955,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7594-101832.flac |",
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-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 11.242975480286383,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-92915.flac |",
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-      "position_frames": 57881
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7594-81881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7594-81881.flac |",
-      "real_speaker_id": "7594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.89130355386099,
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-      "utterance_id": "7525-92915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-92915.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 160768
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.49462228255082,
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-      "utterance_id": "7594-81881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7594-81881.flac |",
-      "real_speaker_id": "7594",
-      "position_frames": 85616
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7594/cough/0013.wav",
-      "duration": 1.04,
-      "start_time": 30.264502374178413,
-      "speaker_id": "7594"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_010469.json b/conversations/conv_010469.json
deleted file mode 100644
index 5789dac0418e22090247df552d8bfd6cd5916566..0000000000000000000000000000000000000000
--- a/conversations/conv_010469.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8464-282934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8464-282934.flac |",
-      "real_speaker_id": "8464",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-121528.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
-      "real_speaker_id": "258",
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-    {
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-      "utterance_id": "7769-99395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7769-99395.flac |",
-      "real_speaker_id": "7769",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.73145981052702,
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-      "utterance_id": "258-130878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 78494
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.49539816540983,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8464-282934.flac |",
-      "real_speaker_id": "8464",
-      "position_frames": 64853
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.416271105955616,
-      "end_time": 32.0,
-      "duration": 1.583728894044384,
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-      "overlap": false,
-      "utterance_id": "258-121528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-121528.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 51430
-    }
-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "7769"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8464/laugh/0034.wav",
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-      "start_time": 29.83554552658461,
-      "speaker_id": "258"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010473.json b/conversations/conv_010473.json
deleted file mode 100644
index 21eccd64377fed10907d85cd7108086ca1b18e68..0000000000000000000000000000000000000000
--- a/conversations/conv_010473.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "699-132866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132866.flac |",
-      "real_speaker_id": "699",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56178.flac |",
-      "real_speaker_id": "6102",
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-      "overlap": false,
-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.965548641933346,
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-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 108608
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "699-132882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132882.flac |",
-      "real_speaker_id": "699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.04611572702486,
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-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 173350
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "6102-56170",
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-      "real_speaker_id": "6102",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/699/laugh/0071.wav",
-      "duration": 0.6521686087203571,
-      "start_time": 0,
-      "speaker_id": "699"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.32,
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
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-      "speaker_id": "5883"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010474.json b/conversations/conv_010474.json
deleted file mode 100644
index 83a76a9a2365c88db43dd4ec1230b1bdedef1c6d..0000000000000000000000000000000000000000
--- a/conversations/conv_010474.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4667-92224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92224.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.326189293095677,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-287671.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "3483-115968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-115968.flac |",
-      "real_speaker_id": "3483",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-287671.flac |",
-      "real_speaker_id": "8545",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-      "utterance_id": "3483-119637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-119637.flac |",
-      "real_speaker_id": "3483",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
-      "duration": 2.2979638699598213,
-      "start_time": 17.141810618563273
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/laugh/0076.wav",
-      "duration": 1.2,
-      "start_time": 5.271230932308609,
-      "speaker_id": "4667"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/cough/0035.wav",
-      "duration": 0.7459264140521145,
-      "start_time": 5.1500369634986916,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8545/laugh/0117.wav",
-      "duration": 1.2,
-      "start_time": 3.95859772914257,
-      "speaker_id": "8545"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8545/laugh/0049.wav",
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-      "start_time": 29.897196613858544,
-      "speaker_id": "8545"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3483/laugh/0057.wav",
-      "duration": 0.9401299620315227,
-      "start_time": 31.059870037968476,
-      "speaker_id": "3483"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3483/cough/0090.wav",
-      "duration": 0.9634962216130378,
-      "start_time": 30.44848846997691,
-      "speaker_id": "3483"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010486.json b/conversations/conv_010486.json
deleted file mode 100644
index beae90e84ec4fcf5d459628af629c6a5ff3bb301..0000000000000000000000000000000000000000
--- a/conversations/conv_010486.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.934543652912799,
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-      "overlap": false,
-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.607882510437085,
-      "end_time": 9.458660104544554,
-      "duration": 3.85077759410747,
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-      "utterance_id": "5688-15787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-15787.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.403060569635617,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-15787.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 61612
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-15787.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 109983
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 177994
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5328/laugh/0031.wav",
-      "duration": 1.24,
-      "start_time": 0,
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-      "event_class": "cough",
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-      "duration": 1.28,
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-      "event_class": "laugh",
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-      "duration": 1.08,
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-      "duration": 1.1417931441298497,
-      "start_time": 30.85820685587015,
-      "speaker_id": "5328"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010490.json b/conversations/conv_010490.json
deleted file mode 100644
index 7558ac48904d956dc7e9f2bf012ba2bea6adf569..0000000000000000000000000000000000000000
--- a/conversations/conv_010490.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "4957-36386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-36386.flac |",
-      "real_speaker_id": "4957",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-36386.flac |",
-      "real_speaker_id": "4957",
-      "position_frames": 53753
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 83101
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "7467",
-      "position_frames": 50443
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.20512101662159,
-      "end_time": 32.0,
-      "duration": 1.7948789833784105,
-      "start_frame": 483281,
-      "duration_frames": 28718,
-      "overlap": false,
-      "utterance_id": "774-127930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "speaker_id": "774"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4957/laugh/0089.wav",
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-    {
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-      "speaker_id": "4957"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010500.json b/conversations/conv_010500.json
deleted file mode 100644
index ccfaf361c0792080b140997a82521b61adee9f4f..0000000000000000000000000000000000000000
--- a/conversations/conv_010500.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.83050974897593,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-39674.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "3681-26514",
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-    {
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-    {
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-    {
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-      "duration": 0.4758730158730159,
-      "start_time": 24.247824509574315
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3681/cough/0068.wav",
-      "duration": 1.020845110153962,
-      "start_time": 8.117764006044391,
-      "speaker_id": "3681"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6625/laugh/0066.wav",
-      "duration": 0.5961251193628363,
-      "start_time": 26.76740303160847,
-      "speaker_id": "6625"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6009/laugh/0028.wav",
-      "duration": 1.08,
-      "start_time": 28.53785151903687,
-      "speaker_id": "6009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010516.json b/conversations/conv_010516.json
deleted file mode 100644
index 31ffc5396bb3e8e0be740ea61a58fa851d11b701..0000000000000000000000000000000000000000
--- a/conversations/conv_010516.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.755803289349437,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.0903355815353635,
-      "duration": 6.0903355815353635,
-      "start_frame": 0,
-      "duration_frames": 97445,
-      "overlap": false,
-      "utterance_id": "4116-3582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-3582.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.240495007404862,
-      "end_time": 9.881600455063197,
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-      "start_frame": 99847,
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-      "utterance_id": "6332-64734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.739364463555237,
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-      "duration": 3.3962898112102797,
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-      "duration_frames": 54340,
-      "overlap": false,
-      "utterance_id": "5029-80197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-80197.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.670613090984883,
-      "end_time": 18.679712688357718,
-      "duration": 4.009099597372836,
-      "start_frame": 234729,
-      "duration_frames": 64145,
-      "overlap": false,
-      "utterance_id": "4116-13256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-13256.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.906565731867826,
-      "end_time": 25.65848278513723,
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-      "utterance_id": "6332-64734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 58257
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.42654560883311,
-      "end_time": 29.79144373182261,
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-      "duration_frames": 53838,
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-      "utterance_id": "5029-80197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-80197.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 54340
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.033523549147645,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 150287
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6332/laugh/0080.wav",
-      "duration": 0.9552905701946821,
-      "start_time": 18.842455701619865,
-      "speaker_id": "6332"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010520.json b/conversations/conv_010520.json
deleted file mode 100644
index eb007409a0cca62dc199e0ab9e6baad8655c9384..0000000000000000000000000000000000000000
--- a/conversations/conv_010520.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7837-109173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.165918109828674,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145720.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.876453845873103,
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-      "overlap": false,
-      "utterance_id": "7837-109173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 73811
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.382150328996069,
-      "end_time": 19.60742404483597,
-      "duration": 4.225273715839901,
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-      "duration_frames": 67604,
-      "overlap": false,
-      "utterance_id": "1898-145724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145724.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.732082960960042,
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-      "utterance_id": "7837-109173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 153182
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1898-145702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145702.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_010527.json b/conversations/conv_010527.json
deleted file mode 100644
index 80dd70b5d9db3d90425e3071928403bb19753262..0000000000000000000000000000000000000000
--- a/conversations/conv_010527.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6199-48196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-48196.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8011-117866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 73138
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.136293702552575,
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-      "utterance_id": "8011-117866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 148825
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_010531.json b/conversations/conv_010531.json
deleted file mode 100644
index b8cea4e2399eadee323949eabe02580bf0a213ec..0000000000000000000000000000000000000000
--- a/conversations/conv_010531.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "duration_frames": 101429,
-      "overlap": false,
-      "utterance_id": "2090-149737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2090-149737.flac |",
-      "real_speaker_id": "2090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "5093",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 23.309264730438,
-      "speaker_id": "4042"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010536.json b/conversations/conv_010536.json
deleted file mode 100644
index ae808a7abc65276e5828dfde47aae2fc11c28c9b..0000000000000000000000000000000000000000
--- a/conversations/conv_010536.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
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-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.53771567109613,
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-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 176010
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.609361312627335,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
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-      "position_frames": 284725
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-      "start_time": 31.04,
-      "speaker_id": "835"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010541.json b/conversations/conv_010541.json
deleted file mode 100644
index c1e32fc82422c36cd27351dffa0659bf6c13cfef..0000000000000000000000000000000000000000
--- a/conversations/conv_010541.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261140.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-130131.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81609.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_010557.json b/conversations/conv_010557.json
deleted file mode 100644
index d09745866e855813aa2755ff099dacbc31921773..0000000000000000000000000000000000000000
--- a/conversations/conv_010557.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_010561.json b/conversations/conv_010561.json
deleted file mode 100644
index 00cade1174bde951a63c65b162c3c1296e110be8..0000000000000000000000000000000000000000
--- a/conversations/conv_010561.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19744703197474,
-  "num_speakers": 3,
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 11.73166637632438,
-      "start_time": 13.545055627370855
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
-      "duration": 4.091138773417277,
-      "start_time": 5.291166755206916
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5115/cough/0070.wav",
-      "duration": 1.199641704604528,
-      "start_time": 6.541034265669776,
-      "speaker_id": "5115"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6030/laugh/0021.wav",
-      "duration": 0.6550531253416505,
-      "start_time": 11.599881713074943,
-      "speaker_id": "6030"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010566.json b/conversations/conv_010566.json
deleted file mode 100644
index 2e1fb5a2762dbe8a6c60e1d5289c96069d3379a9..0000000000000000000000000000000000000000
--- a/conversations/conv_010566.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.743760680627961,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.161984796091863,
-      "end_time": 9.174419628521232,
-      "duration": 5.01243483242937,
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-      "duration_frames": 80198,
-      "overlap": true,
-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.852220171314158,
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-      "overlap": false,
-      "utterance_id": "3819-134145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134145.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.550594826637816,
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-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 80198
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.991572073492748,
-      "end_time": 26.169162559737256,
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-      "utterance_id": "3819-134146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134146.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.33120272358338,
-      "end_time": 30.749906044047314,
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-      "overlap": false,
-      "utterance_id": "3819-134145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134145.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 77308
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.006877573045436,
-      "end_time": 32.0,
-      "duration": 0.9931224269545638,
-      "start_frame": 496110,
-      "duration_frames": 15889,
-      "overlap": false,
-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 59900
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
-      "duration": 14.690997732426304,
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2815/laugh/0035.wav",
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-      "start_time": 3.064704376793901,
-      "speaker_id": "2815"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3819/laugh/0087.wav",
-      "duration": 1.08,
-      "start_time": 26.348783089416525,
-      "speaker_id": "3819"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2577/laugh/0063.wav",
-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "2577"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2577/cough/0047.wav",
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-      "start_time": 31.342736232312333,
-      "speaker_id": "2577"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010570.json b/conversations/conv_010570.json
deleted file mode 100644
index 6e71cca5e8121849c75ec2fd1cb1e921b26733c5..0000000000000000000000000000000000000000
--- a/conversations/conv_010570.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1664-122623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.580667042057106,
-      "end_time": 11.25931559921507,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-294690.flac |",
-      "real_speaker_id": "7910",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.955372966821313,
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-      "utterance_id": "1664-137600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 17.50785338617169,
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-      "utterance_id": "7910-294690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-294690.flac |",
-      "real_speaker_id": "7910",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-294690.flac |",
-      "real_speaker_id": "7910",
-      "position_frames": 146140
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 77401
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7910-105673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-105673.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1664/laugh/0039.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1664/cough/0122.wav",
-      "duration": 1.14,
-      "start_time": 28.85233344642203,
-      "speaker_id": "1664"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7910/laugh/0022.wav",
-      "duration": 1.68,
-      "start_time": 28.63480468664513,
-      "speaker_id": "7910"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010577.json b/conversations/conv_010577.json
deleted file mode 100644
index a74708bc6f7f0d898fd7a8343547b5ddf2eaedd9..0000000000000000000000000000000000000000
--- a/conversations/conv_010577.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "utterance_id": "258-130878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24732.flac |",
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-      "real_speaker_id": "6788",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24732.flac |",
-      "real_speaker_id": "4854",
-      "position_frames": 58557
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
-      "real_speaker_id": "258",
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-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 99011
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.797890539057775,
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-      "duration": 1.202109460942225,
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-      "duration_frames": 19233,
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-      "utterance_id": "4854-24732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24732.flac |",
-      "real_speaker_id": "4854",
-      "position_frames": 142463
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4854/laugh/0103.wav",
-      "duration": 1.36,
-      "start_time": 12.66870892822513,
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-    {
-      "event_class": "laugh",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_010582.json b/conversations/conv_010582.json
deleted file mode 100644
index 5d00777936ed6911696eda9e1ab2c2767c7ab77a..0000000000000000000000000000000000000000
--- a/conversations/conv_010582.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "728-348",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.337627898360324,
-      "end_time": 21.500038403291125,
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-      "utterance_id": "6317-54487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6317-54487.flac |",
-      "real_speaker_id": "6317",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.95399136393904,
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-      "utterance_id": "1474-128275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128275.flac |",
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-      "speaker_id": 1,
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-      "real_speaker_id": "1474",
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-  "background_events": [
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-      "start_time": 4.093113855433698
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_010589.json b/conversations/conv_010589.json
deleted file mode 100644
index 5392ff1c257a0bd5f7c44c09390b24ae01a114e6..0000000000000000000000000000000000000000
--- a/conversations/conv_010589.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "937-132849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-132849.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.7694401517473892,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61780.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3866-9920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9920.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.138620500598762,
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-      "start_frame": 242217,
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-      "utterance_id": "3866-9920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9920.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 66286
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.10574322701046,
-      "end_time": 25.61970713015967,
-      "duration": 5.51396390314921,
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-      "overlap": false,
-      "utterance_id": "937-132849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-132849.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 56019
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.977345362322815,
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-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.494422084585196,
-      "end_time": 32.0,
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-      "utterance_id": "3866-173230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-173230.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "speaker_id": "3866"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010594.json b/conversations/conv_010594.json
deleted file mode 100644
index 10dbf5f7990939086d22cac4963cd9eccbab763c..0000000000000000000000000000000000000000
--- a/conversations/conv_010594.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8388-275212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-275212.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-136483.flac |",
-      "real_speaker_id": "188",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-278289.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 0
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-      "utterance_id": "6181-216552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "188-141613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-141613.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.835784175402182,
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-      "duration": 5.164215824597818,
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-      "duration_frames": 82627,
-      "overlap": false,
-      "utterance_id": "6181-216552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 60498
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/188/laugh/0019.wav",
-      "duration": 1.72,
-      "start_time": 26.32627652284887,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6181/laugh/0004.wav",
-      "duration": 1.5371152600572942,
-      "start_time": 29.42704511055055,
-      "speaker_id": "6181"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010598.json b/conversations/conv_010598.json
deleted file mode 100644
index 3011c08f0bb8b5be208d048b8e49c8774aa00513..0000000000000000000000000000000000000000
--- a/conversations/conv_010598.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 96606,
-      "overlap": false,
-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.414767613678477,
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-      "utterance_id": "4660-25046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25046.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 96606
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.778404419042069,
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-      "utterance_id": "1094-157768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157768.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.149341548829717,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 146881
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4660-25053",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25053.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 6.129534885374263,
-      "speaker_id": "1825"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010605.json b/conversations/conv_010605.json
deleted file mode 100644
index 02607a4986e4c8016bcb0a80456ca154eaa6a02a..0000000000000000000000000000000000000000
--- a/conversations/conv_010605.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.593067238933514,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.292374414989432,
-      "duration": 3.292374414989432,
-      "start_frame": 0,
-      "duration_frames": 52677,
-      "overlap": false,
-      "utterance_id": "806-123715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "6242",
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-      "real_speaker_id": "6078",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54013.flac |",
-      "real_speaker_id": "6078",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.206537455294759,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6078/cough/0061.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6078/cough/0029.wav",
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-      "start_time": 22.974826768029878,
-      "speaker_id": "6078"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010609.json b/conversations/conv_010609.json
deleted file mode 100644
index b4b313eb280a43fdeaeab0bc2911d38e65be2d8a..0000000000000000000000000000000000000000
--- a/conversations/conv_010609.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.148875688217874,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1992-141719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.640135847963664,
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-      "utterance_id": "7910-80534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-80534.flac |",
-      "real_speaker_id": "7910",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1992-141719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 81532
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-80534.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 171975
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-80534.flac |",
-      "real_speaker_id": "7910",
-      "position_frames": 180923
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_12.wav",
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-      "duration": 1.12,
-      "start_time": 9.480283024635874,
-      "speaker_id": "1992"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.84,
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-      "event_class": "cough",
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_010613.json b/conversations/conv_010613.json
deleted file mode 100644
index d748fe8258d51470ad7026b4bee5a53e3e6e1b83..0000000000000000000000000000000000000000
--- a/conversations/conv_010613.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.04393787458061,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8468-294887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8468-294887.flac |",
-      "real_speaker_id": "8468",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-59414.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.888120537895205,
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-      "duration": 4.532753584754765,
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-      "duration_frames": 72524,
-      "overlap": false,
-      "utterance_id": "6153-62534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-62534.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.769065876383404,
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-      "utterance_id": "8468-295198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8468-295198.flac |",
-      "real_speaker_id": "8468",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.312918129679502,
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-      "overlap": false,
-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 73112
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_010618.json b/conversations/conv_010618.json
deleted file mode 100644
index 601f35eda2951da799a3b1722d3cc9e0236b68e1..0000000000000000000000000000000000000000
--- a/conversations/conv_010618.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5220-69517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-69517.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6371",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5220-69517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-69517.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 82428
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "4195",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "5220",
-      "position_frames": 172032
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 40484,
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-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
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-      "position_frames": 79448
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6371/laugh/0045.wav",
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-      "start_time": 31.3168820163629,
-      "speaker_id": "6371"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010625.json b/conversations/conv_010625.json
deleted file mode 100644
index 7da713b2d2f2bdb15cab805d7da56b3a181a8d1d..0000000000000000000000000000000000000000
--- a/conversations/conv_010625.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6609-111356.flac |",
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010629.json b/conversations/conv_010629.json
deleted file mode 100644
index 7fb816b03d113f50aa83588ec33c532767bc3304..0000000000000000000000000000000000000000
--- a/conversations/conv_010629.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6892-256224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256224.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7733",
-      "position_frames": 0
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-      "real_speaker_id": "3909",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256226.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "3909-11695",
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-      "real_speaker_id": "3909",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_010632.json b/conversations/conv_010632.json
deleted file mode 100644
index cfeaa454468de09cf87fbb46ce6c5fa61b3f971f..0000000000000000000000000000000000000000
--- a/conversations/conv_010632.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.677152481634046,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150124.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143382.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-86683.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 63131
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.49544130987209,
-      "end_time": 28.5014359159301,
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-      "duration_frames": 80095,
-      "overlap": false,
-      "utterance_id": "1815-143382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143382.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 105441
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6553-82558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-82558.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_010633.json b/conversations/conv_010633.json
deleted file mode 100644
index 96b6ec8433014ae80709c4aa5f9a2655a600a44b..0000000000000000000000000000000000000000
--- a/conversations/conv_010633.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7538-100045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2787-157400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2787-157400.flac |",
-      "real_speaker_id": "2787",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7538-100044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100044.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.444562740664253,
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-      "utterance_id": "7538-100045",
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-      "real_speaker_id": "7538",
-      "position_frames": 91372
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.97233125720802,
-      "end_time": 27.584509663886053,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2787-157400.flac |",
-      "real_speaker_id": "2787",
-      "position_frames": 76894
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.66049901656828,
-      "end_time": 32.0,
-      "duration": 3.3395009834317193,
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-      "overlap": false,
-      "utterance_id": "1271-128145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-128145.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7538/laugh/0060.wav",
-      "duration": 1.28,
-      "start_time": 9.918402045208387,
-      "speaker_id": "7538"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010644.json b/conversations/conv_010644.json
deleted file mode 100644
index 43776d811cbbf07fc5d0c0b17a7ef9076d6c81cd..0000000000000000000000000000000000000000
--- a/conversations/conv_010644.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
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\ No newline at end of file
diff --git a/conversations/conv_010648.json b/conversations/conv_010648.json
deleted file mode 100644
index d1a268d12f326db89b7c994e1bbc22a90a8f4707..0000000000000000000000000000000000000000
--- a/conversations/conv_010648.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_010649.json b/conversations/conv_010649.json
deleted file mode 100644
index 6d352c6d87a3a1c7c1045058c1344fc60b5db137..0000000000000000000000000000000000000000
--- a/conversations/conv_010649.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "6676",
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_010652.json b/conversations/conv_010652.json
deleted file mode 100644
index 2ed4dd0858d90244a2570c881b6a0e35fb5d4e1b..0000000000000000000000000000000000000000
--- a/conversations/conv_010652.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111612.flac |",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_010659.json b/conversations/conv_010659.json
deleted file mode 100644
index b3e0f7f06f51a8eda8b0f3bed8c86b6a3c11e925..0000000000000000000000000000000000000000
--- a/conversations/conv_010659.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_010664.json b/conversations/conv_010664.json
deleted file mode 100644
index b076ea96c34f156c13416bbf1aa0bdecdb3c38b9..0000000000000000000000000000000000000000
--- a/conversations/conv_010664.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
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-      "position_frames": 92683
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
-      "real_speaker_id": "637",
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_010665.json b/conversations/conv_010665.json
deleted file mode 100644
index fd574a15562612a69100f70396e31348988e36a5..0000000000000000000000000000000000000000
--- a/conversations/conv_010665.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "26",
-      "position_frames": 163178
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\ No newline at end of file
diff --git a/conversations/conv_010668.json b/conversations/conv_010668.json
deleted file mode 100644
index 17540219e6e8b308a5d8524e966eccb882df417f..0000000000000000000000000000000000000000
--- a/conversations/conv_010668.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8199-289915.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010672.json b/conversations/conv_010672.json
deleted file mode 100644
index ee582547b3884dcb13826132cc7baf64ab215f6a..0000000000000000000000000000000000000000
--- a/conversations/conv_010672.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
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-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_010687.json b/conversations/conv_010687.json
deleted file mode 100644
index c7acf23ab18d455a5209f4ec3f76785692fad803..0000000000000000000000000000000000000000
--- a/conversations/conv_010687.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_010691.json b/conversations/conv_010691.json
deleted file mode 100644
index bd6f497d5ba04c14ae5af6175786cc972c07ddd5..0000000000000000000000000000000000000000
--- a/conversations/conv_010691.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_010701.json b/conversations/conv_010701.json
deleted file mode 100644
index 76a0c652e50363ea538f06ebf2aa5e9e89854229..0000000000000000000000000000000000000000
--- a/conversations/conv_010701.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "duration": 1.68,
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-      "speaker_id": "868"
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-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 22.730713407549327,
-      "speaker_id": "5886"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010717.json b/conversations/conv_010717.json
deleted file mode 100644
index 6c28f3e00a595ad0d8d82a12baddfd85f92cfbbf..0000000000000000000000000000000000000000
--- a/conversations/conv_010717.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23281.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.101402752394803,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-63885.flac |",
-      "real_speaker_id": "5985",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5985-300225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-300225.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.87700922390073,
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-      "utterance_id": "4926-23311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23311.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.09383204859593,
-      "end_time": 28.60097759674664,
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-      "utterance_id": "5985-300225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-300225.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 66395
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "3551-7887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3551-7887.flac |",
-      "real_speaker_id": "3551",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "start_time": 27.4886672951993,
-      "speaker_id": "3551"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010720.json b/conversations/conv_010720.json
deleted file mode 100644
index 0e45236b172c201dd0f061958f4cde4ddfd628a1..0000000000000000000000000000000000000000
--- a/conversations/conv_010720.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.747653873446335,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154697.flac |",
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-      "position_frames": 84070
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2427-154673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154673.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-28399.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010721.json b/conversations/conv_010721.json
deleted file mode 100644
index 1c4450220099905802fe4378a906dd398ece82b4..0000000000000000000000000000000000000000
--- a/conversations/conv_010721.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.419701484069435,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-64719.flac |",
-      "real_speaker_id": "4936",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "8592",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "4936",
-      "position_frames": 0
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010737.json b/conversations/conv_010737.json
deleted file mode 100644
index dea23465bbeb8ccebec0ad4f15b75c63866e3f76..0000000000000000000000000000000000000000
--- a/conversations/conv_010737.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.571905135692194,
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-      "segment_id": "seg0002",
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-      "utterance_id": "6754-107484",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111564.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 60660
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7923/cough/0032.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "6754"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010740.json b/conversations/conv_010740.json
deleted file mode 100644
index 0183b2bf0f37ddb81a069d123dba074c45d73e6b..0000000000000000000000000000000000000000
--- a/conversations/conv_010740.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "224-128660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-128660.flac |",
-      "real_speaker_id": "224",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-129790.flac |",
-      "real_speaker_id": "224",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.54339065013139,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "224-129790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-129790.flac |",
-      "real_speaker_id": "224",
-      "position_frames": 75091
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.55816608817191,
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-      "utterance_id": "7559-96246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
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-      "position_frames": 58418
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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\ No newline at end of file
diff --git a/conversations/conv_010756.json b/conversations/conv_010756.json
deleted file mode 100644
index 9779bece578677064efc9b177c00e4501edf4e28..0000000000000000000000000000000000000000
--- a/conversations/conv_010756.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7520-258986",
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-      "real_speaker_id": "7520",
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-      "real_speaker_id": "1124",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_010760.json b/conversations/conv_010760.json
deleted file mode 100644
index b88531d851d9bb6a118889ae2c643605df2ee8cb..0000000000000000000000000000000000000000
--- a/conversations/conv_010760.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47240.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_010776.json b/conversations/conv_010776.json
deleted file mode 100644
index 3aba414705798accc15da2bf9da918bb3bfccee8..0000000000000000000000000000000000000000
--- a/conversations/conv_010776.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "66-354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-354.flac |",
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-      "duration": 1.56,
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-      "speaker_id": "66"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
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-      "start_time": 30.96,
-      "speaker_id": "8095"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_010777.json b/conversations/conv_010777.json
deleted file mode 100644
index 5519b6b897793cf75afae32376d19f415b1e46a6..0000000000000000000000000000000000000000
--- a/conversations/conv_010777.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.197324866557853,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
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-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 151960
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.671107570891909,
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-      "utterance_id": "1545-160887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-160887.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.551081129342542,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137589.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_010783.json b/conversations/conv_010783.json
deleted file mode 100644
index de21e5695b410ecbf8c624ef45ada910a15c87be..0000000000000000000000000000000000000000
--- a/conversations/conv_010783.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "3180",
-      "position_frames": 99772
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101859.flac |",
-      "real_speaker_id": "7597",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010794.json b/conversations/conv_010794.json
deleted file mode 100644
index f4cf1224bbc5af55056bd9e2b825d8abfe8d4c52..0000000000000000000000000000000000000000
--- a/conversations/conv_010794.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-258982.flac |",
-      "real_speaker_id": "4863",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-258985.flac |",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_010795.json b/conversations/conv_010795.json
deleted file mode 100644
index f73df2ba9c01798ed9ad959cdfed8649e0e11724..0000000000000000000000000000000000000000
--- a/conversations/conv_010795.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "3196-151981",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291931.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
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-      "real_speaker_id": "9026",
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291967.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 53264
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "speaker_id": "1367"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010798.json b/conversations/conv_010798.json
deleted file mode 100644
index bdc8007857c628e5eb944432150612352c35ea37..0000000000000000000000000000000000000000
--- a/conversations/conv_010798.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.292615973297243,
-      "duration": 3.292615973297243,
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-      "overlap": false,
-      "utterance_id": "850-131003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131003.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.856792956736119,
-      "end_time": 8.939933792018135,
-      "duration": 5.083140835282014,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131004.flac |",
-      "real_speaker_id": "850",
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-      "speaker_id": 1,
-      "start_time": 9.315663545178325,
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-      "overlap": false,
-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 0
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-      "start_time": 15.189327044084239,
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-      "utterance_id": "3503-127082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127082.flac |",
-      "real_speaker_id": "3503",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 21.221276470738477,
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-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 81477
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.392740594316646,
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-      "duration": 4.6072594056833545,
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-      "utterance_id": "3503-127082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127082.flac |",
-      "real_speaker_id": "3503",
-      "position_frames": 89987
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.56,
-      "start_time": 28.65878078712647,
-      "speaker_id": "3503"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010799.json b/conversations/conv_010799.json
deleted file mode 100644
index eabc4f043bd8a1b40745fe811f3f4d27564a44a3..0000000000000000000000000000000000000000
--- a/conversations/conv_010799.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8445-281203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8445-281203.flac |",
-      "real_speaker_id": "8445",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40470.flac |",
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-      "utterance_id": "152-183930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 17.61052662684762,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-87733.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8445-281203.flac |",
-      "real_speaker_id": "8445",
-      "position_frames": 82693
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 76311
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "start_time": 27.11518419180038
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_010804.json b/conversations/conv_010804.json
deleted file mode 100644
index aa6bafa8954dff6b6f94d9d0ee5a5cd74d4db458..0000000000000000000000000000000000000000
--- a/conversations/conv_010804.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-144137.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7795",
-      "position_frames": 76192
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-135246.flac |",
-      "real_speaker_id": "2541",
-      "position_frames": 80432
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.71148560024835,
-      "end_time": 32.0,
-      "duration": 2.2885143997516515,
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-      "position_frames": 56281
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/164574.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7795/cough/0080.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010808.json b/conversations/conv_010808.json
deleted file mode 100644
index 491769c3a929d21bd8921d0a8f52867ad3a78de4..0000000000000000000000000000000000000000
--- a/conversations/conv_010808.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4358-20034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-20034.flac |",
-      "real_speaker_id": "4358",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3845",
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-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_010812.json b/conversations/conv_010812.json
deleted file mode 100644
index 0b56a980b73bc137564455a5636ffb3b208f6f05..0000000000000000000000000000000000000000
--- a/conversations/conv_010812.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1472-285314.flac |",
-      "real_speaker_id": "1472",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1472-139797.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_010823.json b/conversations/conv_010823.json
deleted file mode 100644
index 5c0fce735f59ccf9dbb48d85c650f4d3a6913e94..0000000000000000000000000000000000000000
--- a/conversations/conv_010823.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6544-67863.flac |",
-      "real_speaker_id": "6544",
-      "position_frames": 61783
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_010824.json b/conversations/conv_010824.json
deleted file mode 100644
index 0a18b06454d7823742aa888f6a65fe1ce1162490..0000000000000000000000000000000000000000
--- a/conversations/conv_010824.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.476691725154645,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-59157.flac |",
-      "real_speaker_id": "7148",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-19207.flac |",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010828.json b/conversations/conv_010828.json
deleted file mode 100644
index 28213ec4a64ffb72af8eb3ed33ec3603ebc43559..0000000000000000000000000000000000000000
--- a/conversations/conv_010828.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.774934578892182,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
-      "position_frames": 70645
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
-      "position_frames": 160067
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7654/laugh/0049.wav",
-      "duration": 0.6219864646261052,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7687/laugh/0120.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010832.json b/conversations/conv_010832.json
deleted file mode 100644
index c7a4395e5e104b29f5984201f21c2b979220e2e5..0000000000000000000000000000000000000000
--- a/conversations/conv_010832.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7603-274560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.6141920806097065,
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-      "real_speaker_id": "7603",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "7603",
-      "position_frames": 212448
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-      "utterance_id": "8803-296085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296085.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    }
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_010835.json b/conversations/conv_010835.json
deleted file mode 100644
index d52ab8bc8d1794b3bb9d1836573c2e6524c454ff..0000000000000000000000000000000000000000
--- a/conversations/conv_010835.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.620544850607562,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3979-10702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10702.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "4733",
-      "position_frames": 91060
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3979-10701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_010845.json b/conversations/conv_010845.json
deleted file mode 100644
index 8c7b5be9bbff2a5d56654db61a79b580f3ff6d90..0000000000000000000000000000000000000000
--- a/conversations/conv_010845.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1034-121119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/925-8141.flac |",
-      "real_speaker_id": "925",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5784-61949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61949.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.37597371341852,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
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-    },
-    {
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "925-8140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/925-8140.flac |",
-      "real_speaker_id": "925",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 1.0992761887057998,
-      "start_time": 30.9007238112942,
-      "speaker_id": "925"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010848.json b/conversations/conv_010848.json
deleted file mode 100644
index dd2cd7ac345ad7568363d2feb121e7df19df2760..0000000000000000000000000000000000000000
--- a/conversations/conv_010848.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.914104281587022,
-      "duration": 4.914104281587022,
-      "start_frame": 0,
-      "duration_frames": 78625,
-      "overlap": false,
-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.739693182289345,
-      "end_time": 10.596171158362967,
-      "duration": 4.856477976073621,
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-      "duration_frames": 77703,
-      "overlap": false,
-      "utterance_id": "7437-96153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96153.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.55717796148516,
-      "end_time": 15.795220413778747,
-      "duration": 4.238042452293588,
-      "start_frame": 184914,
-      "duration_frames": 67808,
-      "overlap": false,
-      "utterance_id": "7338-92154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92154.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.931443861781696,
-      "end_time": 20.623375847536032,
-      "duration": 4.691931985754334,
-      "start_frame": 254903,
-      "duration_frames": 75070,
-      "overlap": false,
-      "utterance_id": "7437-96153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96153.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 77703
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.416311816652122,
-      "end_time": 28.401753041535464,
-      "duration": 6.98544122488334,
-      "start_frame": 342660,
-      "duration_frames": 111767,
-      "overlap": false,
-      "utterance_id": "6752-74796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74796.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.58948014052227,
-      "end_time": 32.0,
-      "duration": 2.4105198594777306,
-      "start_frame": 473431,
-      "duration_frames": 38568,
-      "overlap": false,
-      "utterance_id": "7437-96157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96157.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7437/laugh/0080.wav",
-      "duration": 1.24,
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7338/laugh/0090.wav",
-      "duration": 1.4,
-      "start_time": 14.334548788070192,
-      "speaker_id": "7338"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6752/laugh/0098.wav",
-      "duration": 0.8660709715885554,
-      "start_time": 22.435326221013817,
-      "speaker_id": "6752"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010849.json b/conversations/conv_010849.json
deleted file mode 100644
index 082de004f4a7cce8c57be86f3cf552e42acd66c1..0000000000000000000000000000000000000000
--- a/conversations/conv_010849.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6341-64956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6341-64956.flac |",
-      "real_speaker_id": "6341",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.236782171608745,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-54280.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.78456081985558,
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-      "utterance_id": "6341-64956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6341-64956.flac |",
-      "real_speaker_id": "6341",
-      "position_frames": 71287
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.878943346835108,
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-      "duration_frames": 92662,
-      "overlap": false,
-      "utterance_id": "6359-64713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
-      "real_speaker_id": "6359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.85050729249911,
-      "end_time": 29.992323800895235,
-      "duration": 6.141816508396124,
-      "start_frame": 381608,
-      "duration_frames": 98269,
-      "overlap": false,
-      "utterance_id": "5244-59146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-59146.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.3637619877938,
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-      "duration": 1.6362380122061992,
-      "start_frame": 485820,
-      "duration_frames": 26179,
-      "overlap": false,
-      "utterance_id": "6341-64956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6341-64956.flac |",
-      "real_speaker_id": "6341",
-      "position_frames": 170772
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6341/cough/0074.wav",
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-      "start_time": 17.027926452063753,
-      "speaker_id": "6341"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6359/laugh/0015.wav",
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-      "duration": 0.5762825143094534,
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-      "speaker_id": "6359"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010853.json b/conversations/conv_010853.json
deleted file mode 100644
index 5e1c840017dab393cd7fb2b7c96cd9b6d7cfd876..0000000000000000000000000000000000000000
--- a/conversations/conv_010853.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3138-173544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.0542938203174845,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15556.flac |",
-      "real_speaker_id": "5060",
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-    {
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-      "position_frames": 93916
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "5060-15563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15563.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "background_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_010858.json b/conversations/conv_010858.json
deleted file mode 100644
index 5207a69ade1eee83860b2656c59b0271c752d8a4..0000000000000000000000000000000000000000
--- a/conversations/conv_010858.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
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-      "position_frames": 0
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-    {
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-      "start_time": 5.907280552214897,
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-    {
-      "segment_id": "seg0002",
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-    {
-      "segment_id": "seg0006",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4872/laugh/0056.wav",
-      "duration": 1.2,
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-      "event_class": "cough",
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-      "speaker_id": "4872"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 27.962081652720844,
-      "speaker_id": "7933"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7933/laugh/0079.wav",
-      "duration": 1.24,
-      "start_time": 30.173710058185453,
-      "speaker_id": "7933"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010862.json b/conversations/conv_010862.json
deleted file mode 100644
index 0b2d32f870ec061037a4641510e288ba24611d06..0000000000000000000000000000000000000000
--- a/conversations/conv_010862.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.057119245605007,
-      "duration": 5.057119245605007,
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-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.276324974621405,
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-      "utterance_id": "3866-9919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9919.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
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-      "utterance_id": "5480-41791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41791.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.888106888383184,
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-      "utterance_id": "3866-9919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9919.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 83837
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.409427059361917,
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-      "utterance_id": "5480-41798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41798.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.908766286333986,
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-      "duration": 4.816923795843435,
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-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 80913
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.460598190496455,
-      "end_time": 32.0,
-      "duration": 0.5394018095035449,
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-      "utterance_id": "3866-9920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9920.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_010865.json b/conversations/conv_010865.json
deleted file mode 100644
index 8615f050fd049199ad497335698b8b02f7fb7601..0000000000000000000000000000000000000000
--- a/conversations/conv_010865.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 0
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-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
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-    {
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-      "speaker_id": 1,
-      "start_time": 23.23948772560521,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 156478
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 231624
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "start_time": 28.077018219878678,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010869.json b/conversations/conv_010869.json
deleted file mode 100644
index b8f0dc79cb8e34fe55fc8b393915fc700f8c07da..0000000000000000000000000000000000000000
--- a/conversations/conv_010869.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-163406.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "1938",
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-    {
-      "segment_id": "seg0004",
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-    {
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-  "foreground_events": [
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-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_010873.json b/conversations/conv_010873.json
deleted file mode 100644
index 107fc92277cddbd67403a84950581b3894453e84..0000000000000000000000000000000000000000
--- a/conversations/conv_010873.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.57579015676603,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1414-130538",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
-      "real_speaker_id": "1414",
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "3032-19361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
-      "position_frames": 103789
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-      "duration": 1.16,
-      "start_time": 9.976754987759996,
-      "speaker_id": "1414"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010874.json b/conversations/conv_010874.json
deleted file mode 100644
index 1bfd6dabcb7a783b9b97d32d1e3037411ce71f98..0000000000000000000000000000000000000000
--- a/conversations/conv_010874.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.267679387766329,
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-      "utterance_id": "1387-134991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1387-134991.flac |",
-      "real_speaker_id": "1387",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.093921642250306,
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-      "utterance_id": "985-126228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/985-126228.flac |",
-      "real_speaker_id": "985",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "985-126224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/985-126224.flac |",
-      "real_speaker_id": "985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.746609148875393,
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-      "duration": 3.7771555227871296,
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-      "duration_frames": 60434,
-      "overlap": true,
-      "utterance_id": "6574-120583",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-120583.flac |",
-      "real_speaker_id": "6574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.858931475749976,
-      "end_time": 29.400000227626123,
-      "duration": 6.541068751876147,
-      "start_frame": 365742,
-      "duration_frames": 104657,
-      "overlap": true,
-      "utterance_id": "6574-70756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-70756.flac |",
-      "real_speaker_id": "6574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.937963150382796,
-      "end_time": 32.0,
-      "duration": 1.0620368496172041,
-      "start_frame": 495007,
-      "duration_frames": 16992,
-      "overlap": false,
-      "utterance_id": "1387-134991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1387-134991.flac |",
-      "real_speaker_id": "1387",
-      "position_frames": 100282
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-      "event_class": "Cat",
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-      "speaker_id": "6574"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010886.json b/conversations/conv_010886.json
deleted file mode 100644
index fbe54fb60e98defe937edf02785f60c07f3a1e75..0000000000000000000000000000000000000000
--- a/conversations/conv_010886.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.670386795691496,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "utterance_id": "1878-122453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122453.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94462.flac |",
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-      "utterance_id": "1878-122453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122453.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 92593
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "4705-16048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-16048.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.471268460586906,
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-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.7008400795242,
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-      "duration_frames": 31512,
-      "overlap": true,
-      "utterance_id": "4705-94473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94473.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010890.json b/conversations/conv_010890.json
deleted file mode 100644
index 42a6bdaeffdd7dde1b59361049aad319e9bbee89..0000000000000000000000000000000000000000
--- a/conversations/conv_010890.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3290-170207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-170207.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
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-      "segment_id": "seg0002",
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-      "utterance_id": "3290-14909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-14909.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1681-142313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142313.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1681-142301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_010900.json b/conversations/conv_010900.json
deleted file mode 100644
index 0c27cf8dd25d55db312c9be73822531049f86c52..0000000000000000000000000000000000000000
--- a/conversations/conv_010900.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.382593084137614,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
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-      "utterance_id": "1373-135029",
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-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.730614004662556,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 57448
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-  "background_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010916.json b/conversations/conv_010916.json
deleted file mode 100644
index 6b11665ecef58ac6f9afea8147062d3c14d0f2c1..0000000000000000000000000000000000000000
--- a/conversations/conv_010916.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 4.3629270898085135,
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-      "overlap": false,
-      "utterance_id": "4481-17498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4481-17498.flac |",
-      "real_speaker_id": "4481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.653623003792585,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
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-      "utterance_id": "4481-17498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4481-17498.flac |",
-      "real_speaker_id": "4481",
-      "position_frames": 69806
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-      "speaker_id": 0,
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-      "utterance_id": "7333-94828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94828.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.02342655417577,
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-      "utterance_id": "4481-17499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4481-17499.flac |",
-      "real_speaker_id": "4481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.071661459485227,
-      "end_time": 32.0,
-      "duration": 3.9283385405147726,
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-      "overlap": false,
-      "utterance_id": "7333-94828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94828.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 53052
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
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-      "speaker_id": "4481"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010920.json b/conversations/conv_010920.json
deleted file mode 100644
index 5f0c7ff29f58ab3e09986adda3a276f35f9e4a15..0000000000000000000000000000000000000000
--- a/conversations/conv_010920.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.752334950269905,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.5441706719344044,
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-      "utterance_id": "4356-6498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6498.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 81234
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-      "start_time": 21.680105946414372,
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-      "real_speaker_id": "3400",
-      "position_frames": 48939
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "foreground_events": [
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-      "duration": 1.24,
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010927.json b/conversations/conv_010927.json
deleted file mode 100644
index 6892d1d13bff1286657dc5dddf67f098e27e9379..0000000000000000000000000000000000000000
--- a/conversations/conv_010927.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.983638416387574,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5860-72190",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5860-72190.flac |",
-      "real_speaker_id": "5860",
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-    {
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-      "real_speaker_id": "101",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/104/cough/0091.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010931.json b/conversations/conv_010931.json
deleted file mode 100644
index 7647f7ed9966d5b4dc8c0084ba8def38bc239129..0000000000000000000000000000000000000000
--- a/conversations/conv_010931.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-167590.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77905.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
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-      "real_speaker_id": "4863",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
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-      "speaker_id": "7220"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010936.json b/conversations/conv_010936.json
deleted file mode 100644
index 7cd6a62c2b68d923ac95a666acb0b0feb34ea903..0000000000000000000000000000000000000000
--- a/conversations/conv_010936.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.340376620381434,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 62637
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6311-63718.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6311-63719.flac |",
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-      "position_frames": 86128
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_010941.json b/conversations/conv_010941.json
deleted file mode 100644
index 6ba2b526f9e1a6acdc9b0c59fdeb7258bf8bc4db..0000000000000000000000000000000000000000
--- a/conversations/conv_010941.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "7367",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_010957.json b/conversations/conv_010957.json
deleted file mode 100644
index eabec5cde1b842884215a53559e06114a9a27d48..0000000000000000000000000000000000000000
--- a/conversations/conv_010957.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-99140.flac |",
-      "real_speaker_id": "7649",
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-    {
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_010961.json b/conversations/conv_010961.json
deleted file mode 100644
index 53b3c5aaafb15f2eafb2e18b454b4161b081cf9f..0000000000000000000000000000000000000000
--- a/conversations/conv_010961.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6794-73984.flac |",
-      "real_speaker_id": "6794",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6794-73984.flac |",
-      "real_speaker_id": "6794",
-      "position_frames": 87500
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_010966.json b/conversations/conv_010966.json
deleted file mode 100644
index 585b8bd14839a688220b3a6508769b9334b33156..0000000000000000000000000000000000000000
--- a/conversations/conv_010966.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_010970.json b/conversations/conv_010970.json
deleted file mode 100644
index a74eb76a46d923457b8188152213a46a8801c22e..0000000000000000000000000000000000000000
--- a/conversations/conv_010970.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_010977.json b/conversations/conv_010977.json
deleted file mode 100644
index 6d69e495d97d2dbb3540cab312e51ecdd6e31f1d..0000000000000000000000000000000000000000
--- a/conversations/conv_010977.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_010982.json b/conversations/conv_010982.json
deleted file mode 100644
index ed926119b79f87e33a082bf8155f8dd6694223e5..0000000000000000000000000000000000000000
--- a/conversations/conv_010982.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-      "segment_id": "seg0005",
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "speaker_id": "7215"
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-}
\ No newline at end of file
diff --git a/conversations/conv_010989.json b/conversations/conv_010989.json
deleted file mode 100644
index 3e162982150e3399e12ed63ceae25ca08a8774e4..0000000000000000000000000000000000000000
--- a/conversations/conv_010989.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.919798895796237,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178028.flac |",
-      "real_speaker_id": "3835",
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-      "start_time": 7.0505917490122885,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-116629.flac |",
-      "real_speaker_id": "6415",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
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-      "segment_id": "seg0004",
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-      "utterance_id": "6415-111615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_010994.json b/conversations/conv_010994.json
deleted file mode 100644
index b422bf19ad2bc6057669e5f301475f5e45387d81..0000000000000000000000000000000000000000
--- a/conversations/conv_010994.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_010998.json b/conversations/conv_010998.json
deleted file mode 100644
index a9358d69efcdf7738277f92dfa24c2561219df42..0000000000000000000000000000000000000000
--- a/conversations/conv_010998.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "5636-41790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41790.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "segment_id": "seg0002",
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-      "utterance_id": "5636-41792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41792.flac |",
-      "real_speaker_id": "5636",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41790.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 96860
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "4018-107338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107338.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4018/laugh/0024.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "4018"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011002.json b/conversations/conv_011002.json
deleted file mode 100644
index 8be6c8ebfb157a3fc891c15c2137a0bef9085cb8..0000000000000000000000000000000000000000
--- a/conversations/conv_011002.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.919384464687393,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 4.88136924609337,
-      "start_frame": 0,
-      "duration_frames": 78101,
-      "overlap": false,
-      "utterance_id": "712-123606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_011009.json b/conversations/conv_011009.json
deleted file mode 100644
index 25c5dbfa484e44544e0f2e40674888e463bebc06..0000000000000000000000000000000000000000
--- a/conversations/conv_011009.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
-      "real_speaker_id": "5092",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14960.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_011014.json b/conversations/conv_011014.json
deleted file mode 100644
index 662a428eca7a00febab5ebc65a1077570e06166b..0000000000000000000000000000000000000000
--- a/conversations/conv_011014.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "2748",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-283136.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011018.json b/conversations/conv_011018.json
deleted file mode 100644
index e93030a16df0ebad04f432f2b73120d71ac4f9dd..0000000000000000000000000000000000000000
--- a/conversations/conv_011018.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "4680",
-      "position_frames": 0
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-      "real_speaker_id": "1195",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-    {
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-      "position_frames": 125712
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011022.json b/conversations/conv_011022.json
deleted file mode 100644
index 2616f03f8d4fff6cb243295ae9567ece0a8612e8..0000000000000000000000000000000000000000
--- a/conversations/conv_011022.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_011023.json b/conversations/conv_011023.json
deleted file mode 100644
index 150dfc7577eca70490509eed1e091385f64668e7..0000000000000000000000000000000000000000
--- a/conversations/conv_011023.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_011034.json b/conversations/conv_011034.json
deleted file mode 100644
index 5abd2847b3dce9b7adf57294f827e22cddfe1cd7..0000000000000000000000000000000000000000
--- a/conversations/conv_011034.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_011038.json b/conversations/conv_011038.json
deleted file mode 100644
index 3e81643557cc26cd09428eccb7c18720b0c0a761..0000000000000000000000000000000000000000
--- a/conversations/conv_011038.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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-      "start_time": 30.601110965070085,
-      "speaker_id": "4205"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011043.json b/conversations/conv_011043.json
deleted file mode 100644
index 583dbf87d2ea4ca533d942034db1a500fd9e2ff1..0000000000000000000000000000000000000000
--- a/conversations/conv_011043.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.969422204147722,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8713-300047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-300047.flac |",
-      "real_speaker_id": "8713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.208771235544576,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-284283.flac |",
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-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "8713-296159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-296159.flac |",
-      "real_speaker_id": "8713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.452296300938084,
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-      "duration": 5.669108354683968,
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-      "utterance_id": "2943-171001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171001.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.794770272471016,
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-      "duration": 4.776969233313775,
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-      "utterance_id": "5076-284283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-284283.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 107700
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.454134303641112,
-      "end_time": 32.0,
-      "duration": 1.545865696358888,
-      "start_frame": 487266,
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-      "overlap": false,
-      "utterance_id": "8713-302111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-302111.flac |",
-      "real_speaker_id": "8713",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "duration": 1.32,
-      "start_time": 17.634535501900288,
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-    {
-      "event_class": "cough",
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-      "duration": 0.47286686775616443,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5076/laugh/0081.wav",
-      "duration": 0.5616337020750513,
-      "start_time": 24.22030709082602,
-      "speaker_id": "5076"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011048.json b/conversations/conv_011048.json
deleted file mode 100644
index 176ab114c6307bed4196ecfa8b40e037d2ce2a50..0000000000000000000000000000000000000000
--- a/conversations/conv_011048.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1624-142933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
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-      "position_frames": 77617
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "8005",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.90802405036038,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 68290
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3440-171009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171009.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.9202473476685,
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-      "utterance_id": "1624-168623",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 0.98,
-      "start_time": 14.06085773553,
-      "speaker_id": "8005"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011055.json b/conversations/conv_011055.json
deleted file mode 100644
index e32ad96c512a1819b9d282d1fe21509ef78140c4..0000000000000000000000000000000000000000
--- a/conversations/conv_011055.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4549",
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_011059.json b/conversations/conv_011059.json
deleted file mode 100644
index 2896fc5dbc71c308eb5c9eab08563345ed6ee9a8..0000000000000000000000000000000000000000
--- a/conversations/conv_011059.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "duration": 1.44,
-      "start_time": 1.5627770108398937,
-      "speaker_id": "5911"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5911/cough/0111.wav",
-      "duration": 0.4317609063417345,
-      "start_time": 24.54634706083818,
-      "speaker_id": "5911"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011063.json b/conversations/conv_011063.json
deleted file mode 100644
index 26dd0f9042be0b911fdb57d38176f2a471d411d3..0000000000000000000000000000000000000000
--- a/conversations/conv_011063.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.91671862102963,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 1,
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-      "utterance_id": "4064-77779",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-77779.flac |",
-      "real_speaker_id": "4064",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.52893928455004,
-      "end_time": 8.713838654565542,
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-      "utterance_id": "426-122822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122822.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.17277590576397,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-19132.flac |",
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-    {
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-      "speaker_id": 0,
-      "start_time": 14.490303296853803,
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-      "utterance_id": "426-122822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122822.flac |",
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-      "position_frames": 50958
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.667868348896594,
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-      "utterance_id": "4064-12118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-12118.flac |",
-      "real_speaker_id": "4064",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122819.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.636603853839656,
-      "end_time": 31.91671862102963,
-      "duration": 3.280114767189974,
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-      "duration_frames": 52481,
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-      "utterance_id": "218-131205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.0408783434250886,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4064/laugh/0036.wav",
-      "duration": 1.3129073366505175,
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-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "218"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011074.json b/conversations/conv_011074.json
deleted file mode 100644
index 82eb56fbb2f084222ab8dac52802681a42bdf9ef..0000000000000000000000000000000000000000
--- a/conversations/conv_011074.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5914-52088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5436.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
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-    {
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-      "utterance_id": "5914-52088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 107135
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.632055174638502,
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-      "utterance_id": "3088-5438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5438.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.268817283900002,
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-      "overlap": false,
-      "utterance_id": "5914-52087",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52087.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.583981909611392,
-      "end_time": 32.0,
-      "duration": 0.41601809038860793,
-      "start_frame": 505343,
-      "duration_frames": 6656,
-      "overlap": false,
-      "utterance_id": "7777-106366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5914/laugh/0027.wav",
-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9188902573929396,
-      "start_time": 16.377798400010732,
-      "speaker_id": "5914"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5914/laugh/0017.wav",
-      "duration": 1.12,
-      "start_time": 30.46225870393195,
-      "speaker_id": "5914"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.1703206205634578,
-      "start_time": 30.82967937943654,
-      "speaker_id": "7777"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011075.json b/conversations/conv_011075.json
deleted file mode 100644
index 2ada0d5eb769da5ffbf898a5c9450733371f1b25..0000000000000000000000000000000000000000
--- a/conversations/conv_011075.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3088-5438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5438.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 12.136407539994075,
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-      "utterance_id": "8778-246984",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 16.349222584820012,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5436.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246972.flac |",
-      "real_speaker_id": "8778",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-      "position_frames": 82341
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011079.json b/conversations/conv_011079.json
deleted file mode 100644
index a878868c348fec8afd91ce1f5a11a5b947e2feac..0000000000000000000000000000000000000000
--- a/conversations/conv_011079.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6951-79737.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "8465",
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-      "start_time": 11.294577002481365,
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8465-246947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246947.flac |",
-      "real_speaker_id": "8465",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173236.flac |",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6951/laugh/0028.wav",
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-      "speaker_id": "3867"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011080.json b/conversations/conv_011080.json
deleted file mode 100644
index 104e609152cb35e2efa0cd18f2cb22f7fc7a478f..0000000000000000000000000000000000000000
--- a/conversations/conv_011080.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6025573468865777,
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-      "overlap": false,
-      "utterance_id": "5671-50454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.064322058812318,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
-      "position_frames": 0
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-      "utterance_id": "5671-50486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50486.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.263509408830963,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
-      "position_frames": 58957
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.415218144389748,
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-      "utterance_id": "3054-128242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.27337189560008,
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-      "duration": 4.726628104399921,
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-      "utterance_id": "5671-50486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50486.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 100648
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_011096.json b/conversations/conv_011096.json
deleted file mode 100644
index fa959b00a075f82e07c04a3fdc875641a8dfafa6..0000000000000000000000000000000000000000
--- a/conversations/conv_011096.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.656365195644646,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2960-155151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155151.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "2960",
-      "position_frames": 60480
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-366.flac |",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155151.flac |",
-      "real_speaker_id": "2960",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-295710.flac |",
-      "real_speaker_id": "8772",
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-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011106.json b/conversations/conv_011106.json
deleted file mode 100644
index 48105e51f2733e0b547d8b773fa67b39005047d3..0000000000000000000000000000000000000000
--- a/conversations/conv_011106.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8619-291384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291384.flac |",
-      "real_speaker_id": "8619",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.455247635386023,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291381.flac |",
-      "real_speaker_id": "8619",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1827-143625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "duration_frames": 85214,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291374.flac |",
-      "real_speaker_id": "8619",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1827-143625",
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-      "real_speaker_id": "1827",
-      "position_frames": 72781
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 58338,
-      "overlap": false,
-      "utterance_id": "1827-143625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 123473
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.55268213063375,
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-      "real_speaker_id": "8619",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "1827"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011110.json b/conversations/conv_011110.json
deleted file mode 100644
index c4152a385e2b61f9eb56f604de5bbef87daaf9c7..0000000000000000000000000000000000000000
--- a/conversations/conv_011110.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.030715273246184,
-      "duration": 3.030715273246184,
-      "start_frame": 0,
-      "duration_frames": 48491,
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-      "real_speaker_id": "7892",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "start_time": 21.37573213894498,
-      "speaker_id": "7892"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_011126.json b/conversations/conv_011126.json
deleted file mode 100644
index b88e1204a33538049257079c0e26e7b74005e764..0000000000000000000000000000000000000000
--- a/conversations/conv_011126.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6535-66371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-66371.flac |",
-      "real_speaker_id": "6535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.426736863091029,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "1049",
-      "position_frames": 80300
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.857706562523788,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-66371.flac |",
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-      "position_frames": 54231
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 85683
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011130.json b/conversations/conv_011130.json
deleted file mode 100644
index 34764209bb32c92cccb2872e9ac862e8db82c2e9..0000000000000000000000000000000000000000
--- a/conversations/conv_011130.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "real_speaker_id": "487",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-91998.flac |",
-      "real_speaker_id": "7307",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-93896.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-91998.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 87041
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4712-49746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-49746.flac |",
-      "real_speaker_id": "4712",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 29.858899428345428,
-      "speaker_id": "4712"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011131.json b/conversations/conv_011131.json
deleted file mode 100644
index 9dd26e542f5e6fbfda531a6836cf6f313d85bc7a..0000000000000000000000000000000000000000
--- a/conversations/conv_011131.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2007-132570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-132570.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.001967027650202,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-132570.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 61972
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration": 3.623093930068667,
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-      "utterance_id": "1705-142318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
-      "real_speaker_id": "1705",
-      "position_frames": 81995
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-132570.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 153681
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.64396592867067,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
-      "real_speaker_id": "1705",
-      "position_frames": 139964
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011147.json b/conversations/conv_011147.json
deleted file mode 100644
index 66f630d8d9b05f338bf91a803979d9a36e4a63df..0000000000000000000000000000000000000000
--- a/conversations/conv_011147.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.60002543812368,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_011151.json b/conversations/conv_011151.json
deleted file mode 100644
index c3b68716a593619f6ec813c161715e74d7392389..0000000000000000000000000000000000000000
--- a/conversations/conv_011151.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.167276989774944,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-284014.flac |",
-      "real_speaker_id": "8441",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31609.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128131.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_011166.json b/conversations/conv_011166.json
deleted file mode 100644
index e1c74f031883755d8d32ffce4cd925dcb69e7553..0000000000000000000000000000000000000000
--- a/conversations/conv_011166.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "2026",
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-      "segment_id": "seg0005",
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-      "utterance_id": "5717-94876",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_011167.json b/conversations/conv_011167.json
deleted file mode 100644
index 68c6a8f5c018bc8a6ebb18b8c0b7f410eb4ae44e..0000000000000000000000000000000000000000
--- a/conversations/conv_011167.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3733",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8238",
-      "position_frames": 75067
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-      "speaker_id": 0,
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-      "real_speaker_id": "3192",
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-      "utterance_id": "3192-4909",
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_011171.json b/conversations/conv_011171.json
deleted file mode 100644
index 44171232c7a05ee61d5e64938645c3ac94bdf202..0000000000000000000000000000000000000000
--- a/conversations/conv_011171.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.32828271791778,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-}
\ No newline at end of file
diff --git a/conversations/conv_011184.json b/conversations/conv_011184.json
deleted file mode 100644
index c730a4cdd4ebb52f3d9c4eee5309cea65029b6a6..0000000000000000000000000000000000000000
--- a/conversations/conv_011184.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
-      "real_speaker_id": "202",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_011188.json b/conversations/conv_011188.json
deleted file mode 100644
index 913e9434d836ec632fe80604e56b3384e30cd615..0000000000000000000000000000000000000000
--- a/conversations/conv_011188.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_011189.json b/conversations/conv_011189.json
deleted file mode 100644
index 1046c934e700f81874f58557ad2eecd784a25c86..0000000000000000000000000000000000000000
--- a/conversations/conv_011189.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5337/cough/0018.wav",
-      "duration": 0.92,
-      "start_time": 4.512141039115128,
-      "speaker_id": "5337"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/319/laugh/0104.wav",
-      "duration": 1.64,
-      "start_time": 16.221966468125057,
-      "speaker_id": "319"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/501/laugh/0110.wav",
-      "duration": 1.4,
-      "start_time": 15.47153867619787,
-      "speaker_id": "501"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5337/laugh/0024.wav",
-      "duration": 0.9772976869868646,
-      "start_time": 28.57820262962908,
-      "speaker_id": "5337"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/319/laugh/0069.wav",
-      "duration": 1.0747138484227026,
-      "start_time": 29.962847552672883,
-      "speaker_id": "319"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011192.json b/conversations/conv_011192.json
deleted file mode 100644
index 9a4e0b410f8e72b3c6425fe3bacbf86ed0b9813f..0000000000000000000000000000000000000000
--- a/conversations/conv_011192.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.668225783281443,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8180-274723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274723.flac |",
-      "real_speaker_id": "8180",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.472344462338678,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140071.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "8180-274724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274724.flac |",
-      "real_speaker_id": "8180",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.064367017329538,
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-      "utterance_id": "1482-140071",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140071.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 104347
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.50327285633265,
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-      "utterance_id": "7649-96682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96682.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1482/laugh/0032.wav",
-      "duration": 1.0475455922280217,
-      "start_time": 3.2825548044231274,
-      "speaker_id": "1482"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8180/laugh/0094.wav",
-      "duration": 1.3893923016238463,
-      "start_time": 15.097998214111875,
-      "speaker_id": "8180"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011203.json b/conversations/conv_011203.json
deleted file mode 100644
index ec8af3b508271b60959bd480e202c40989a17e38..0000000000000000000000000000000000000000
--- a/conversations/conv_011203.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.21789010236659,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4246-12545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12545.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.999575880361713,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "3698-256231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-256231.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.499379602801305,
-      "end_time": 18.901336883197278,
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-      "overlap": false,
-      "utterance_id": "3843-176663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176663.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.561850548557775,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-41990.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.747224636140643,
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-      "utterance_id": "3843-176666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 58391
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3698/laugh/0051.wav",
-      "duration": 1.16,
-      "start_time": 26.224255818657124,
-      "speaker_id": "3698"
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-      "event_class": "laugh",
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-      "speaker_id": "3843"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011215.json b/conversations/conv_011215.json
deleted file mode 100644
index 9d88ea0a00a101d9df164930d6f71917d115204a..0000000000000000000000000000000000000000
--- a/conversations/conv_011215.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "6286-69422",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6286-69422.flac |",
-      "real_speaker_id": "6286",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 84484,
-      "overlap": false,
-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.504151397355713,
-      "end_time": 22.945942129194307,
-      "duration": 4.4417907318385925,
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-      "duration_frames": 71068,
-      "overlap": false,
-      "utterance_id": "8619-291381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291381.flac |",
-      "real_speaker_id": "8619",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.84633621559317,
-      "end_time": 27.958480888106013,
-      "duration": 4.112144672512843,
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-      "utterance_id": "6286-75355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6286-75355.flac |",
-      "real_speaker_id": "6286",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.842497447593672,
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-      "duration_frames": 50520,
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-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 77750
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_011218.json b/conversations/conv_011218.json
deleted file mode 100644
index bc64f74e76326adccbbba7ff7b6d94b8a87e3c34..0000000000000000000000000000000000000000
--- a/conversations/conv_011218.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "470",
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-      "utterance_id": "6211-66280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-66280.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-127690.flac |",
-      "real_speaker_id": "470",
-      "position_frames": 91177
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.29942972211461,
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-      "real_speaker_id": "7484",
-      "position_frames": 64981
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "470-127690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-127690.flac |",
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-      "position_frames": 164084
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_011219.json b/conversations/conv_011219.json
deleted file mode 100644
index f7546d62c038bd38dc150bc16712dac8c5211203..0000000000000000000000000000000000000000
--- a/conversations/conv_011219.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.49624864008092,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_011223.json b/conversations/conv_011223.json
deleted file mode 100644
index c7136b00d1771c706330718990b4cea9a75e13d5..0000000000000000000000000000000000000000
--- a/conversations/conv_011223.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "829-123190",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/829-123190.flac |",
-      "real_speaker_id": "829",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14494.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
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-      "real_speaker_id": "4411",
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-      "segment_id": "seg0005",
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-      "utterance_id": "829-123191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/829-123191.flac |",
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-      "position_frames": 90117
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_011224.json b/conversations/conv_011224.json
deleted file mode 100644
index 9f2ecd54dbcbd782b164f6ef635e73d03290b4f4..0000000000000000000000000000000000000000
--- a/conversations/conv_011224.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-124002.flac |",
-      "real_speaker_id": "154",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142276.flac |",
-      "real_speaker_id": "250",
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-      "position_frames": 166602
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_011232.json b/conversations/conv_011232.json
deleted file mode 100644
index 950a324eb8ebed1a2f1ab90902857b7550176f09..0000000000000000000000000000000000000000
--- a/conversations/conv_011232.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.03379997309718,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "4014-186176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4014-186176.flac |",
-      "real_speaker_id": "4014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.179498463408336,
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_011235.json b/conversations/conv_011235.json
deleted file mode 100644
index ef676e316122277868972ab73a167d4e7d1f79ab..0000000000000000000000000000000000000000
--- a/conversations/conv_011235.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.470937020092087,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_011239.json b/conversations/conv_011239.json
deleted file mode 100644
index bbba77e60a36745bfe4cd30a8efd78e3c313818f..0000000000000000000000000000000000000000
--- a/conversations/conv_011239.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_011242.json b/conversations/conv_011242.json
deleted file mode 100644
index 04fc2478a5463940f7c7944ccaabcc24e683f44b..0000000000000000000000000000000000000000
--- a/conversations/conv_011242.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_011254.json b/conversations/conv_011254.json
deleted file mode 100644
index 0039320898bb0445a67cf72954600d8fda6105ba..0000000000000000000000000000000000000000
--- a/conversations/conv_011254.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "start_time": 24.41816804536694,
-      "speaker_id": "5322"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011258.json b/conversations/conv_011258.json
deleted file mode 100644
index 3af03762ca64dd7021afecbe5d1f082b5401c38c..0000000000000000000000000000000000000000
--- a/conversations/conv_011258.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.667166204804957,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "start_time": 0.0,
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-      "utterance_id": "3843-176666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.710500229528017,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.711138799578375,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 101899
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.649632096958356,
-      "end_time": 26.91657572054474,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 98503
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.70321541479397,
-      "end_time": 31.667166204804957,
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-      "utterance_id": "2246-131710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2246-131710.flac |",
-      "real_speaker_id": "2246",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 6.54598171468428,
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-}
\ No newline at end of file
diff --git a/conversations/conv_011262.json b/conversations/conv_011262.json
deleted file mode 100644
index 4de5996721bb082f2fca0952bbea1be983f9bde9..0000000000000000000000000000000000000000
--- a/conversations/conv_011262.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "3025",
-      "position_frames": 162122
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6552.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "3894"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011265.json b/conversations/conv_011265.json
deleted file mode 100644
index 6d5bad448a517e17255237172af1182c3fc7e23b..0000000000000000000000000000000000000000
--- a/conversations/conv_011265.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-10683.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51655.flac |",
-      "real_speaker_id": "6076",
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-      "real_speaker_id": "1313",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6076-51655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51655.flac |",
-      "real_speaker_id": "6076",
-      "position_frames": 71509
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.58204787036663,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-136054.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011273.json b/conversations/conv_011273.json
deleted file mode 100644
index c61463a2a2a75da511f8cab371d759d66da5c3de..0000000000000000000000000000000000000000
--- a/conversations/conv_011273.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-292604.flac |",
-      "real_speaker_id": "3967",
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-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-292138.flac |",
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-    {
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-      "utterance_id": "667-107247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
-      "real_speaker_id": "667",
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_011274.json b/conversations/conv_011274.json
deleted file mode 100644
index 2894170eaac3443cdceeb1a3dd6ced9a8dab5f44..0000000000000000000000000000000000000000
--- a/conversations/conv_011274.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.453979450600134,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_011278.json b/conversations/conv_011278.json
deleted file mode 100644
index 7e8e0ace5c60aeaea950f8de90e533f9d5d8b7de..0000000000000000000000000000000000000000
--- a/conversations/conv_011278.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
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-      "position_frames": 50586
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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\ No newline at end of file
diff --git a/conversations/conv_011281.json b/conversations/conv_011281.json
deleted file mode 100644
index 6bf1638c35050f7718032f7920a5404c9e7f92cb..0000000000000000000000000000000000000000
--- a/conversations/conv_011281.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.844365577334788,
-  "num_speakers": 3,
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-      "utterance_id": "1736-152007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-152007.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-142281.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 66212
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_011297.json b/conversations/conv_011297.json
deleted file mode 100644
index ec296be19d2b19f70f5c41cc23ea1b1ab0542201..0000000000000000000000000000000000000000
--- a/conversations/conv_011297.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7467-69610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7467",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1638",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "position_frames": 83561
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_011307.json b/conversations/conv_011307.json
deleted file mode 100644
index 5b4319b059b323de4784fec17bb2ddfc666498c8..0000000000000000000000000000000000000000
--- a/conversations/conv_011307.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156117.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.327809808065005,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.08,
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011311.json b/conversations/conv_011311.json
deleted file mode 100644
index 8a6ec4f7145ea76275967fcf112d4fb48ebc6788..0000000000000000000000000000000000000000
--- a/conversations/conv_011311.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.400813697442754,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1088-129236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-129236.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.4893843091596155,
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-      "duration": 4.564308879408395,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180307.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 0
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-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011320.json b/conversations/conv_011320.json
deleted file mode 100644
index 3e1b777269ad49b67876319af56c7bb07fe00e46..0000000000000000000000000000000000000000
--- a/conversations/conv_011320.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95959.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_011327.json b/conversations/conv_011327.json
deleted file mode 100644
index c47ceed144dead68eaedda72871d1959aa66b02d..0000000000000000000000000000000000000000
--- a/conversations/conv_011327.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5909.flac |",
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-      "real_speaker_id": "836",
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-      "position_frames": 68200
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3118",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "836-131106",
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_011331.json b/conversations/conv_011331.json
deleted file mode 100644
index bd9cac99ee6cff55a2d0f634b9d9f767c87bf8d2..0000000000000000000000000000000000000000
--- a/conversations/conv_011331.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "real_speaker_id": "830",
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\ No newline at end of file
diff --git a/conversations/conv_011336.json b/conversations/conv_011336.json
deleted file mode 100644
index 0d270cf59b423dc08615cde56a922c5b870b636f..0000000000000000000000000000000000000000
--- a/conversations/conv_011336.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.972395176481136,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15273.flac |",
-      "real_speaker_id": "4701",
-      "position_frames": 149068
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "791-127519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/791-127519.flac |",
-      "real_speaker_id": "791",
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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\ No newline at end of file
diff --git a/conversations/conv_011346.json b/conversations/conv_011346.json
deleted file mode 100644
index ccaa3536da9994ac7391817f1bdc46aff9e6e0da..0000000000000000000000000000000000000000
--- a/conversations/conv_011346.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-300208.flac |",
-      "real_speaker_id": "5985",
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-      "segment_id": "seg0006",
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011350.json b/conversations/conv_011350.json
deleted file mode 100644
index e1ab8d4ce89f39e6ca57bbe3198f2c0abc0aa65c..0000000000000000000000000000000000000000
--- a/conversations/conv_011350.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.792678447119336,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156073.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
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-      "real_speaker_id": "8848",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "2971",
-      "position_frames": 67105
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "2526",
-      "position_frames": 76634
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8848-293957",
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-      "real_speaker_id": "8848",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_011361.json b/conversations/conv_011361.json
deleted file mode 100644
index d98eb4252031beac783566126091a67e895a3885..0000000000000000000000000000000000000000
--- a/conversations/conv_011361.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_011366.json b/conversations/conv_011366.json
deleted file mode 100644
index 41758d4d6eb0f2b435da5b9ac9a677cc485e7976..0000000000000000000000000000000000000000
--- a/conversations/conv_011366.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.366307886923035,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101289.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_011370.json b/conversations/conv_011370.json
deleted file mode 100644
index e906af62ba2bae4f0301cabc62bf15e1b116dffc..0000000000000000000000000000000000000000
--- a/conversations/conv_011370.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
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-  "num_speakers": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_011377.json b/conversations/conv_011377.json
deleted file mode 100644
index 9b6663005e01b71ac1630237a72e84401ff3ae0f..0000000000000000000000000000000000000000
--- a/conversations/conv_011377.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "duration": 1.3,
-      "start_time": 30.7,
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-      "speaker_id": "7603"
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\ No newline at end of file
diff --git a/conversations/conv_011385.json b/conversations/conv_011385.json
deleted file mode 100644
index 89166a46978b5d765debb667c3adcb366b80ff73..0000000000000000000000000000000000000000
--- a/conversations/conv_011385.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-80699.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-84357.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 24.462262902776935,
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-      "utterance_id": "5319-64075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-64075.flac |",
-      "real_speaker_id": "5319",
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-      "segment_id": "seg0005",
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-      "utterance_id": "1779-142733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_011389.json b/conversations/conv_011389.json
deleted file mode 100644
index a05ce7ed1a5f2b266f53111484f26dc37231f862..0000000000000000000000000000000000000000
--- a/conversations/conv_011389.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3144-166426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3144-166426.flac |",
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-      "position_frames": 90962
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-      "segment_id": "seg0004",
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-      "utterance_id": "3144-166426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3144-166426.flac |",
-      "real_speaker_id": "3144",
-      "position_frames": 87390
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.041062185614241,
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-      "utterance_id": "4703-59231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4703-59231.flac |",
-      "real_speaker_id": "4703",
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-  "background_events": [],
-  "foreground_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_011393.json b/conversations/conv_011393.json
deleted file mode 100644
index 3a8e14dafe84daf5460167cd025a83e09ddf39cb..0000000000000000000000000000000000000000
--- a/conversations/conv_011393.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "373-130974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130974.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_011398.json b/conversations/conv_011398.json
deleted file mode 100644
index a57dd82898497356f8986d129f615361bf13c4d6..0000000000000000000000000000000000000000
--- a/conversations/conv_011398.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76101.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76101.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 64146
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "start_time": 0,
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-      "duration": 1.16,
-      "start_time": 21.727709097254394,
-      "speaker_id": "6747"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011405.json b/conversations/conv_011405.json
deleted file mode 100644
index 4982a3a913caa5d09ddaa93b4488f60a9126dd4c..0000000000000000000000000000000000000000
--- a/conversations/conv_011405.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 99292
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.639183012281173,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-10766.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.30268804450773,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 183137
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 89370
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-      "speaker_id": "3079"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011409.json b/conversations/conv_011409.json
deleted file mode 100644
index fd487c20be11c5fb9a8e4aad3ce5c526303f9d70..0000000000000000000000000000000000000000
--- a/conversations/conv_011409.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.64122215349394,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8051-119902.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8051-119902.flac |",
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-      "segment_id": "seg0003",
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-      "utterance_id": "4344-22232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4344-22232.flac |",
-      "real_speaker_id": "4344",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "6178",
-      "position_frames": 72229
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_011413.json b/conversations/conv_011413.json
deleted file mode 100644
index c0be8af8c74420fac5b79949f76da9ec1e0d9692..0000000000000000000000000000000000000000
--- a/conversations/conv_011413.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.43527045488861,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-143521.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "742-128033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
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-      "real_speaker_id": "8580",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 49751
-    },
-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_011418.json b/conversations/conv_011418.json
deleted file mode 100644
index 22efc608f30b25f4029dc6ac33be63f1fd131713..0000000000000000000000000000000000000000
--- a/conversations/conv_011418.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_011424.json b/conversations/conv_011424.json
deleted file mode 100644
index 9b1ebd4821669e7c2c4db8667f1265347100489e..0000000000000000000000000000000000000000
--- a/conversations/conv_011424.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.680382293315724,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
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-      "real_speaker_id": "421",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 16.29333621698358,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-160960.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.175657477854163,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_011425.json b/conversations/conv_011425.json
deleted file mode 100644
index 2f92ed9707f018de8de5d3f4acb2b11c488c3852..0000000000000000000000000000000000000000
--- a/conversations/conv_011425.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "segment_id": "seg0004",
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-      "position_frames": 151843
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\ No newline at end of file
diff --git a/conversations/conv_011429.json b/conversations/conv_011429.json
deleted file mode 100644
index 62c8a2b57f7873464eae153d5c465001fe11ec1e..0000000000000000000000000000000000000000
--- a/conversations/conv_011429.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.476507815745013,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
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-      "real_speaker_id": "8430",
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_011433.json b/conversations/conv_011433.json
deleted file mode 100644
index 1df06fdce5286290f973df2cec81e18155a7d0c5..0000000000000000000000000000000000000000
--- a/conversations/conv_011433.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-41167.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.747339389698176,
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-      "duration": 1.2526606103018239,
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-      "duration_frames": 20042,
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-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 53712
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011444.json b/conversations/conv_011444.json
deleted file mode 100644
index a3a0777376ae428d3f356dd700c97411d50aa488..0000000000000000000000000000000000000000
--- a/conversations/conv_011444.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.242778775894601,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3094-136458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 5.063965895858,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57826.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5436.flac |",
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-      "speaker_id": 0,
-      "start_time": 19.865090881274806,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 145355
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.723552909374721,
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-      "overlap": false,
-      "utterance_id": "6030-70988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-70988.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "speaker_id": "3094"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011448.json b/conversations/conv_011448.json
deleted file mode 100644
index 56d92177349be790913c75685390311ff0cc1d21..0000000000000000000000000000000000000000
--- a/conversations/conv_011448.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.276249952952756,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-14986.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 14.232849056409902,
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-      "overlap": true,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.37120061031653,
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-      "utterance_id": "1166-14986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-14986.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 80080
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.168340688635936,
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-      "overlap": false,
-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 55413
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "1849-144965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-144965.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
-      "duration": 0.41732426303854875,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_2.wav",
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-      "start_time": 31.215826836812795
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1184/laugh/0117.wav",
-      "duration": 0.9923045823664234,
-      "start_time": 5.236903428556156,
-      "speaker_id": "1184"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1849/laugh/0108.wav",
-      "duration": 1.445307273371749,
-      "start_time": 12.77272092026937,
-      "speaker_id": "1849"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011452.json b/conversations/conv_011452.json
deleted file mode 100644
index 5319f0f08cdf7bf6ccaef7353fb6c37f6ccd83e6..0000000000000000000000000000000000000000
--- a/conversations/conv_011452.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1634-141571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1634-141571.flac |",
-      "real_speaker_id": "1634",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.820037112743239,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.890857172001,
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-      "utterance_id": "4363-14936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-14936.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.10952646689224,
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-      "overlap": false,
-      "utterance_id": "8631-249866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-249866.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 18.960806454972513,
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-      "utterance_id": "1634-141571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1634-141571.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "duration": 1.5916120917063523,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1634-141571.flac |",
-      "real_speaker_id": "1634",
-      "position_frames": 144597
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8631/laugh/0050.wav",
-      "duration": 1.36,
-      "start_time": 19.12707381516144,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1634/laugh/0069.wav",
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-      "start_time": 20.393264482816083,
-      "speaker_id": "1634"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011459.json b/conversations/conv_011459.json
deleted file mode 100644
index a1e66bd73bb612c7aa856d465c7d90929432bbc2..0000000000000000000000000000000000000000
--- a/conversations/conv_011459.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_011464.json b/conversations/conv_011464.json
deleted file mode 100644
index b376b7e4a872330c9ba59b280bfa665810306162..0000000000000000000000000000000000000000
--- a/conversations/conv_011464.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_011468.json b/conversations/conv_011468.json
deleted file mode 100644
index 273217e8bdb17760918f49cdfa1284de80cf23e8..0000000000000000000000000000000000000000
--- a/conversations/conv_011468.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_011472.json b/conversations/conv_011472.json
deleted file mode 100644
index 624fa2c2c83f13eb6888607a09f3a349527f8d6a..0000000000000000000000000000000000000000
--- a/conversations/conv_011472.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-      "start_time": 22.442188860117703,
-      "speaker_id": "8071"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6346/laugh/0024.wav",
-      "duration": 0.5062889525097933,
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-      "speaker_id": "6346"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8071/cough/0065.wav",
-      "duration": 0.6432954805513997,
-      "start_time": 26.30833979153574,
-      "speaker_id": "8071"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011473.json b/conversations/conv_011473.json
deleted file mode 100644
index 22f7ff2f37bd1378fd736a76d0b267f508e340d8..0000000000000000000000000000000000000000
--- a/conversations/conv_011473.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.814279315515284,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19209.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
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-      "utterance_id": "5448-19208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6254-61739.flac |",
-      "real_speaker_id": "6254",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 25.08930651028226,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 84142
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.43702178560421,
-      "end_time": 32.0,
-      "duration": 1.562978214395791,
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-      "duration_frames": 25007,
-      "overlap": false,
-      "utterance_id": "6254-61725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6254-61725.flac |",
-      "real_speaker_id": "6254",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 27.84683442768519,
-      "start_time": 3.5148984545602544
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "speaker_id": "5290"
-    },
-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 12.134563359958983,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6254"
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-    {
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-      "start_time": 30.20745536378944,
-      "speaker_id": "5290"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011487.json b/conversations/conv_011487.json
deleted file mode 100644
index ef3108b3a9226d9d14887bcb03cf2b548d3dfcd8..0000000000000000000000000000000000000000
--- a/conversations/conv_011487.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8225-274376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274376.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.650244236985886,
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-      "utterance_id": "2137-131742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-131742.flac |",
-      "real_speaker_id": "2137",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.692908841031189,
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-      "utterance_id": "8225-274375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274375.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 17.988208379427654,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278206.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.360645764512704,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274375.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 83860
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.808662614934992,
-      "end_time": 32.0,
-      "duration": 4.191337385065008,
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-      "duration_frames": 67061,
-      "overlap": false,
-      "utterance_id": "8143-278206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278206.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 91627
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "duration": 1.0,
-      "start_time": 6.121325613988111,
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 1.32,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8143"
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-    {
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-      "speaker_id": "8143"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011491.json b/conversations/conv_011491.json
deleted file mode 100644
index 9baae73c2b210a7247e601f6a08653036709f3b2..0000000000000000000000000000000000000000
--- a/conversations/conv_011491.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171115.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-14905.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7262.flac |",
-      "real_speaker_id": "4005",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64469.flac |",
-      "real_speaker_id": "6534",
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-    {
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-      "real_speaker_id": "3723",
-      "position_frames": 89870
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 1.4412691277597176,
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-      "overlap": false,
-      "utterance_id": "4005-7258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7258.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-    {
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-      "duration": 1.32,
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 22.277959647879175,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011501.json b/conversations/conv_011501.json
deleted file mode 100644
index 782855f78b9c186aa797102d1ffc1eba1a87875f..0000000000000000000000000000000000000000
--- a/conversations/conv_011501.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1593-94847.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_011517.json b/conversations/conv_011517.json
deleted file mode 100644
index 02f29c1a9c76607b30b5538db2203b53007ce57f..0000000000000000000000000000000000000000
--- a/conversations/conv_011517.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132864.flac |",
-      "real_speaker_id": "699",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132864.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132866.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_011521.json b/conversations/conv_011521.json
deleted file mode 100644
index 2df23cb99c08b8caff58debf71500ce3246eb037..0000000000000000000000000000000000000000
--- a/conversations/conv_011521.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.146076010750463,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136280.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_011536.json b/conversations/conv_011536.json
deleted file mode 100644
index 83f7a9ea01877bb29cbb199f2f5b01857f0422ef..0000000000000000000000000000000000000000
--- a/conversations/conv_011536.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.417943012636137,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3783-176659.flac |",
-      "real_speaker_id": "3783",
-      "position_frames": 0
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_011537.json b/conversations/conv_011537.json
deleted file mode 100644
index 50830cfc09655fad8b18aed0d8feba36ea4190d9..0000000000000000000000000000000000000000
--- a/conversations/conv_011537.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.362254519110962,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121665.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121652.flac |",
-      "real_speaker_id": "289",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121665.flac |",
-      "real_speaker_id": "289",
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-      "speaker_id": "289"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011540.json b/conversations/conv_011540.json
deleted file mode 100644
index e8bcce995b6f82f542025c682dbf175f7256cb02..0000000000000000000000000000000000000000
--- a/conversations/conv_011540.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.174258652972636,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8631-283727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 69783
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-249866.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_011556.json b/conversations/conv_011556.json
deleted file mode 100644
index 128c2af1df91ad5f772c14217a4e6b7e50097fa5..0000000000000000000000000000000000000000
--- a/conversations/conv_011556.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 87034
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-}
\ No newline at end of file
diff --git a/conversations/conv_011560.json b/conversations/conv_011560.json
deleted file mode 100644
index 55cf26119b7738f01161109d3574bf444888e568..0000000000000000000000000000000000000000
--- a/conversations/conv_011560.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7609/laugh/0114.wav",
-      "duration": 0.899396868438628,
-      "start_time": 19.844090096159942,
-      "speaker_id": "7609"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011561.json b/conversations/conv_011561.json
deleted file mode 100644
index 074a77e174eb7a8b9a46ac285b536dee4e6a4f8d..0000000000000000000000000000000000000000
--- a/conversations/conv_011561.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.411777600919537,
-      "duration": 4.411777600919537,
-      "start_frame": 0,
-      "duration_frames": 70588,
-      "overlap": false,
-      "utterance_id": "5876-10347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-10347.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.198203127052931,
-      "end_time": 11.906767699383884,
-      "duration": 6.708564572330953,
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-      "duration_frames": 107337,
-      "overlap": false,
-      "utterance_id": "3835-178028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178028.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.318417046741214,
-      "end_time": 18.30129170916569,
-      "duration": 5.982874662424477,
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-      "duration_frames": 95725,
-      "overlap": false,
-      "utterance_id": "5876-8675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-8675.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.904250681535743,
-      "end_time": 22.80424436064225,
-      "duration": 3.8999936791065064,
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-      "duration_frames": 62399,
-      "overlap": false,
-      "utterance_id": "3835-178030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178030.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.308391401740707,
-      "end_time": 27.15901516252413,
-      "duration": 3.8506237607834257,
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-      "duration_frames": 61609,
-      "overlap": false,
-      "utterance_id": "5876-10347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-10347.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 70588
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.10034454885575,
-      "end_time": 32.0,
-      "duration": 3.8996554511442483,
-      "start_frame": 449605,
-      "duration_frames": 62394,
-      "overlap": false,
-      "utterance_id": "3835-178028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178028.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 107337
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
-      "duration": 0.31979591836734694,
-      "start_time": 11.414582340191803
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
-      "duration": 0.9175736961451247,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5876/laugh/0067.wav",
-      "duration": 0.5877188896839177,
-      "start_time": 1.779646392682707,
-      "speaker_id": "5876"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5876/laugh/0125.wav",
-      "duration": 1.0091099271049402,
-      "start_time": 11.1098592698932,
-      "speaker_id": "5876"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5876/cough/0103.wav",
-      "duration": 1.0099333740419254,
-      "start_time": 11.188119769571118,
-      "speaker_id": "5876"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5876/laugh/0130.wav",
-      "duration": 1.0783290232472553,
-      "start_time": 22.21469137051221,
-      "speaker_id": "5876"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011576.json b/conversations/conv_011576.json
deleted file mode 100644
index 0046adbc36c509368d1028dacf707152bc347567..0000000000000000000000000000000000000000
--- a/conversations/conv_011576.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.487908584278532,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.506625915460195,
-      "duration": 4.506625915460195,
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-      "overlap": false,
-      "utterance_id": "7062-75816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-75816.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.59653162735068,
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-      "overlap": false,
-      "utterance_id": "9000-282380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282380.flac |",
-      "real_speaker_id": "9000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.79368713116999,
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-      "overlap": false,
-      "utterance_id": "7062-75816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-75816.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 72106
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.734851711408856,
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-      "overlap": true,
-      "utterance_id": "1121-176698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1121-176698.flac |",
-      "real_speaker_id": "1121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.16866622550791,
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-      "overlap": false,
-      "utterance_id": "7062-96512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-96512.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.794634318674497,
-      "end_time": 31.487908584278532,
-      "duration": 4.693274265604036,
-      "start_frame": 428714,
-      "duration_frames": 75092,
-      "overlap": false,
-      "utterance_id": "9000-282381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282381.flac |",
-      "real_speaker_id": "9000",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/9000/laugh/0078.wav",
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-      "start_time": 9.83058069599388,
-      "speaker_id": "9000"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1121/laugh/0032.wav",
-      "duration": 1.4,
-      "start_time": 21.258308799566027,
-      "speaker_id": "1121"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7062/laugh/0066.wav",
-      "duration": 0.6478355541659895,
-      "start_time": 22.931508512608207,
-      "speaker_id": "7062"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7062/cough/0047.wav",
-      "duration": 1.0166978348963258,
-      "start_time": 26.3154468484789,
-      "speaker_id": "7062"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011583.json b/conversations/conv_011583.json
deleted file mode 100644
index c8811c9540cb56c8aea368c7042be08612b3cd78..0000000000000000000000000000000000000000
--- a/conversations/conv_011583.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8307",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-57446.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.494395852083365,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-57446.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 102792
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8307-120456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120456.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.93505184007434,
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-      "duration": 1.0649481599256596,
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-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1370/laugh/0016.wav",
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-      "event_class": "laugh",
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-      "duration": 1.28,
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-      "speaker_id": "8307"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011595.json b/conversations/conv_011595.json
deleted file mode 100644
index 3e313da1d6721bac3bc98ce076e70bc80d1a1295..0000000000000000000000000000000000000000
--- a/conversations/conv_011595.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "55-121069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129527.flac |",
-      "real_speaker_id": "1225",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "55"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011599.json b/conversations/conv_011599.json
deleted file mode 100644
index b6b44f343c658fb203ad0c064ebb44acb1e0fa09..0000000000000000000000000000000000000000
--- a/conversations/conv_011599.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-100145.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
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-      "start_time": 4.74829024493752,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132013.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-100145.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 72679
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_011604.json b/conversations/conv_011604.json
deleted file mode 100644
index ced2f70ae2055a988da951104b80851cd508f1ba..0000000000000000000000000000000000000000
--- a/conversations/conv_011604.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23955.flac |",
-      "real_speaker_id": "4196",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-58078.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.39743562699998,
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-      "utterance_id": "4196-23924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23924.flac |",
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-      "position_frames": 0
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4196/laugh/0042.wav",
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-      "start_time": 28.171700578914184,
-      "speaker_id": "4196"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011608.json b/conversations/conv_011608.json
deleted file mode 100644
index c8486e1d834b5a18e1aaebb6126fc3e3d6db86df..0000000000000000000000000000000000000000
--- a/conversations/conv_011608.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "923-132307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132307.flac |",
-      "real_speaker_id": "923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132307.flac |",
-      "real_speaker_id": "923",
-      "position_frames": 65667
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "923",
-      "position_frames": 129213
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 132638
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.185040004630217,
-      "end_time": 32.0,
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_011612.json b/conversations/conv_011612.json
deleted file mode 100644
index 6f05482b9feff7bfa8dce68dcf4da82408e50f4f..0000000000000000000000000000000000000000
--- a/conversations/conv_011612.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.018522036914245,
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-      "start_frame": 0,
-      "duration_frames": 96296,
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-      "position_frames": 0
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-      "real_speaker_id": "3889",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-153036.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 66137
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_011623.json b/conversations/conv_011623.json
deleted file mode 100644
index f7f3bdeeb6b8c415151841a213222a20de870cce..0000000000000000000000000000000000000000
--- a/conversations/conv_011623.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205002.flac |",
-      "real_speaker_id": "5350",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205003.flac |",
-      "real_speaker_id": "5350",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 15.21835846033592,
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-      "utterance_id": "8112-281888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8112-281888.flac |",
-      "real_speaker_id": "8112",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.76507802077083,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205002.flac |",
-      "real_speaker_id": "5350",
-      "position_frames": 85314
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "153-126651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126651.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_011624.json b/conversations/conv_011624.json
deleted file mode 100644
index b7968e2bf3511a259d9a20b9a434d5f01488fcdd..0000000000000000000000000000000000000000
--- a/conversations/conv_011624.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.700788330976636,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
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-      "real_speaker_id": "982",
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-      "segment_id": "seg0003",
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-      "utterance_id": "79-121541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "982",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
-      "position_frames": 128551
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "speaker_id": "79"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011628.json b/conversations/conv_011628.json
deleted file mode 100644
index f8b924a5f5b712e425ed340c26ce60cd7bca1558..0000000000000000000000000000000000000000
--- a/conversations/conv_011628.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5299-34547.flac |",
-      "real_speaker_id": "5299",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7138-291964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291964.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.138760615175979,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
-      "position_frames": 73497
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7138",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
-      "position_frames": 156107
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6019/laugh/0012.wav",
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-      "speaker_id": "6019"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011632.json b/conversations/conv_011632.json
deleted file mode 100644
index 36fb54958c5f9c6d21f3f83fa43f21dfdaefa8cd..0000000000000000000000000000000000000000
--- a/conversations/conv_011632.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "real_speaker_id": "5514",
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-      "segment_id": "seg0006",
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-      "real_speaker_id": "5672",
-      "position_frames": 117000
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5672/cough/0017.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011635.json b/conversations/conv_011635.json
deleted file mode 100644
index b7e70e5e82f6404e8185238121b403b655a01804..0000000000000000000000000000000000000000
--- a/conversations/conv_011635.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.118080390720753,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3885-1193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-1193.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.761781855011602,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280376.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5545-52067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-52067.flac |",
-      "real_speaker_id": "5545",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-1194.flac |",
-      "real_speaker_id": "3885",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-66398.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3885-12149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-12149.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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\ No newline at end of file
diff --git a/conversations/conv_011645.json b/conversations/conv_011645.json
deleted file mode 100644
index 1dd867e2a9067a64ae674684f6cb383ec39b8a6c..0000000000000000000000000000000000000000
--- a/conversations/conv_011645.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-88353.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-88353.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-40345.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-40345.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 79094
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-123319.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "2654",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "speaker_id": "25"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011649.json b/conversations/conv_011649.json
deleted file mode 100644
index 14c2891fc9b0316ef094eb32d472ad83566f0eb3..0000000000000000000000000000000000000000
--- a/conversations/conv_011649.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.282459150716786,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4137-11702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4137-11702.flac |",
-      "real_speaker_id": "4137",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148522.flac |",
-      "real_speaker_id": "2240",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148522.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 65562
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-    {
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-      "utterance_id": "2240-148522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148522.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 149597
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_10.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011653.json b/conversations/conv_011653.json
deleted file mode 100644
index 116a42848dc8a738297f1277426be1f1907c2944..0000000000000000000000000000000000000000
--- a/conversations/conv_011653.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.04379533975806,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "5009-29142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29142.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
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-      "speaker_id": "5009"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011662.json b/conversations/conv_011662.json
deleted file mode 100644
index 607dd6f53c44bc7f129992085629c3f8325fa115..0000000000000000000000000000000000000000
--- a/conversations/conv_011662.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "4407-13146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13146.flac |",
-      "real_speaker_id": "4407",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.494753012924443,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
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-      "overlap": false,
-      "utterance_id": "110-2",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.510777426507609,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 61274
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.622691280961725,
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-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-      "event_class": "Dog",
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-      "start_time": 30.8,
-      "speaker_id": "110"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011665.json b/conversations/conv_011665.json
deleted file mode 100644
index c9ea661e8edd89b104d951621e6cdc7bd2032fd0..0000000000000000000000000000000000000000
--- a/conversations/conv_011665.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
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-      "real_speaker_id": "8401",
-      "position_frames": 124351
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-      "real_speaker_id": "1414",
-      "position_frames": 76856
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1414/laugh/0000.wav",
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\ No newline at end of file
diff --git a/conversations/conv_011669.json b/conversations/conv_011669.json
deleted file mode 100644
index 64525cd6be429c144c0508fb7b1587b878c519ec..0000000000000000000000000000000000000000
--- a/conversations/conv_011669.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.467252605480393,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134142.flac |",
-      "real_speaker_id": "3757",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-113322.flac |",
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-      "utterance_id": "6272-70171",
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-      "position_frames": 0
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-      "real_speaker_id": "7988",
-      "position_frames": 54048
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_011673.json b/conversations/conv_011673.json
deleted file mode 100644
index 94afbc5401d441e782330c39e1943ec69d590fcd..0000000000000000000000000000000000000000
--- a/conversations/conv_011673.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.54529358763025,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "66-355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-355.flac |",
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-128264.flac |",
-      "real_speaker_id": "1096",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-355.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_011674.json b/conversations/conv_011674.json
deleted file mode 100644
index 84707919e67bb4c63d23acc6136e5360506fa8d2..0000000000000000000000000000000000000000
--- a/conversations/conv_011674.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_011686.json b/conversations/conv_011686.json
deleted file mode 100644
index a90ad009d114c7d328e1944251ba34e2e80ea2e6..0000000000000000000000000000000000000000
--- a/conversations/conv_011686.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_011690.json b/conversations/conv_011690.json
deleted file mode 100644
index d7b6fca4a923bf9e34d112fcb9460762bfa03603..0000000000000000000000000000000000000000
--- a/conversations/conv_011690.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_011700.json b/conversations/conv_011700.json
deleted file mode 100644
index 7b5f3046c8848177d10815f1b19f4e43a5d96ff3..0000000000000000000000000000000000000000
--- a/conversations/conv_011700.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1547-130184.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127082.flac |",
-      "real_speaker_id": "3503",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011716.json b/conversations/conv_011716.json
deleted file mode 100644
index fa4daffb16ad93f58dc5527894e1491fa8d652f4..0000000000000000000000000000000000000000
--- a/conversations/conv_011716.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6877-77361.flac |",
-      "real_speaker_id": "6877",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134142.flac |",
-      "real_speaker_id": "3757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.763698920646785,
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-      "duration": 6.405267948755018,
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-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 69809
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6877-77361.flac |",
-      "real_speaker_id": "6877",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 5.465385153449333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 172293
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_011720.json b/conversations/conv_011720.json
deleted file mode 100644
index 06bd3436c63cb214c81a623ee10be2fe5544ba1c..0000000000000000000000000000000000000000
--- a/conversations/conv_011720.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-148996.flac |",
-      "real_speaker_id": "2089",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131276.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.454632005207714,
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-      "utterance_id": "2089-148996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-148996.flac |",
-      "real_speaker_id": "2089",
-      "position_frames": 106001
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.6653849650870143,
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-      "utterance_id": "5703-47212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 62688
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-  ],
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-  "foreground_events": [
-    {
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-      "speaker_id": "5703"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011727.json b/conversations/conv_011727.json
deleted file mode 100644
index 1e24e5cb559c2f278627b70a3342f747cb1fc634..0000000000000000000000000000000000000000
--- a/conversations/conv_011727.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6051-54421.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19192.flac |",
-      "real_speaker_id": "5514",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6051-61724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6051-61724.flac |",
-      "real_speaker_id": "6051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7128",
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011731.json b/conversations/conv_011731.json
deleted file mode 100644
index 6ec405b08112b781192ef7dbeb0613b230b7f56e..0000000000000000000000000000000000000000
--- a/conversations/conv_011731.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 140416
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 1.4559451240976813,
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-      "utterance_id": "7128-84122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7128-84122.flac |",
-      "real_speaker_id": "7128",
-      "position_frames": 86606
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
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-      "event_class": "cough",
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-      "speaker_id": "5429"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011736.json b/conversations/conv_011736.json
deleted file mode 100644
index f56e4364b3e4705353e2ca5fc6ff6a85cde06212..0000000000000000000000000000000000000000
--- a/conversations/conv_011736.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1313-136054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-136054.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.173909539456283,
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-      "segment_id": "seg0002",
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-      "start_time": 10.391515073658528,
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-      "utterance_id": "4297-13006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13006.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 0
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-      "start_time": 15.526723517809343,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.30749345331554,
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-      "utterance_id": "4297-13006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13006.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 65340
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.574497995924283,
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-      "utterance_id": "85-121551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
-      "real_speaker_id": "85",
-      "position_frames": 199137
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011741.json b/conversations/conv_011741.json
deleted file mode 100644
index c2306e56fa4690709d5147e4784224de775d03d1..0000000000000000000000000000000000000000
--- a/conversations/conv_011741.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6081-41997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-41997.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6081-41998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-41998.flac |",
-      "real_speaker_id": "6081",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/147-125761.flac |",
-      "real_speaker_id": "147",
-      "position_frames": 61070
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "5093-26496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-26496.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/147-125761.flac |",
-      "real_speaker_id": "147",
-      "position_frames": 171270
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9,
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-    {
-      "event_class": "cough",
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-      "duration": 0.9042849655933987,
-      "start_time": 26.257165350046346,
-      "speaker_id": "5093"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011757.json b/conversations/conv_011757.json
deleted file mode 100644
index fd96a9e888ff9070f5c48a70260b44b30edc1e1a..0000000000000000000000000000000000000000
--- a/conversations/conv_011757.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "613-132862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-132862.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-86777.flac |",
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-      "real_speaker_id": "8725",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-132862.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 71676
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.701938705115165,
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "613",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "start_time": 28.239073241468812,
-      "speaker_id": "613"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011761.json b/conversations/conv_011761.json
deleted file mode 100644
index ba55bf391830e8b94d2e2251b788ec8c05f67063..0000000000000000000000000000000000000000
--- a/conversations/conv_011761.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
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\ No newline at end of file
diff --git a/conversations/conv_011766.json b/conversations/conv_011766.json
deleted file mode 100644
index 1adf2beaaf5b9d106315028fb029aa116152e041..0000000000000000000000000000000000000000
--- a/conversations/conv_011766.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179154.flac |",
-      "real_speaker_id": "2159",
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\ No newline at end of file
diff --git a/conversations/conv_011770.json b/conversations/conv_011770.json
deleted file mode 100644
index d35a7362c95e8fe8f75eb6f07ceab847ef747b3e..0000000000000000000000000000000000000000
--- a/conversations/conv_011770.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011777.json b/conversations/conv_011777.json
deleted file mode 100644
index 72ef43495d02ab54ecf27033219466374208085a..0000000000000000000000000000000000000000
--- a/conversations/conv_011777.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-    {
-      "event_class": "cough",
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-      "duration": 0.6207849687413279,
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-      "speaker_id": "3681"
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-      "start_time": 22.18314916669162,
-      "speaker_id": "5104"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011782.json b/conversations/conv_011782.json
deleted file mode 100644
index cb7c61059d0829a1207e379993b80e10c09e6349..0000000000000000000000000000000000000000
--- a/conversations/conv_011782.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.790745859717806,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1401-14358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-14358.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.048747382180328,
-      "end_time": 9.417129177516173,
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-      "utterance_id": "2273-152357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2273-152357.flac |",
-      "real_speaker_id": "2273",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.12477495113718,
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-      "utterance_id": "7285-72207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72207.flac |",
-      "real_speaker_id": "7285",
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1401-174511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-174511.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.242200779975843,
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-      "utterance_id": "2273-152363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2273-152363.flac |",
-      "real_speaker_id": "2273",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.470499882347248,
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-      "utterance_id": "1401-146770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-146770.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.428896388613808,
-      "end_time": 31.790745859717806,
-      "duration": 3.361849471103998,
-      "start_frame": 454862,
-      "duration_frames": 53789,
-      "overlap": true,
-      "utterance_id": "2273-152357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2273-152357.flac |",
-      "real_speaker_id": "2273",
-      "position_frames": 69894
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_011789.json b/conversations/conv_011789.json
deleted file mode 100644
index 6af09ee1b45ce8c23bd50f5616b0add22d97b64c..0000000000000000000000000000000000000000
--- a/conversations/conv_011789.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "8347-258283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-258283.flac |",
-      "real_speaker_id": "8347",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-258283.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 0
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-      "start_time": 13.130788591472939,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.235182568766074,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-258283.flac |",
-      "real_speaker_id": "8347",
-      "position_frames": 120035
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.780389616866266,
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-      "duration": 5.219610383133734,
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-      "utterance_id": "377-129290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 102686
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 26.702122970798204,
-      "speaker_id": "8347"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011794.json b/conversations/conv_011794.json
deleted file mode 100644
index c69badded67fdfcaf85ba3204f8ba7fbbda88d36..0000000000000000000000000000000000000000
--- a/conversations/conv_011794.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4590-18004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18004.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32856.flac |",
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-      "real_speaker_id": "8208",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "4590",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "6014",
-      "position_frames": 0
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-    {
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-      "start_time": 29.841034806824982,
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-      "position_frames": 98106
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011798.json b/conversations/conv_011798.json
deleted file mode 100644
index 0ae5ecfc48b79ac86c09ac05d3c36f15e964e831..0000000000000000000000000000000000000000
--- a/conversations/conv_011798.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "5914-52088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5914-52087",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52087.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 89065
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.08353417395864,
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-      "duration": 3.9164658260413603,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280354.flac |",
-      "real_speaker_id": "8108",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5914/laugh/0018.wav",
-      "duration": 0.88,
-      "start_time": 20.283520427822843,
-      "speaker_id": "5914"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8108/laugh/0053.wav",
-      "duration": 0.682337427369786,
-      "start_time": 28.245776478150958,
-      "speaker_id": "8108"
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-    {
-      "event_class": "cough",
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-      "duration": 0.9141776512781914,
-      "start_time": 31.08582234872181,
-      "speaker_id": "8108"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011805.json b/conversations/conv_011805.json
deleted file mode 100644
index cad40ef71e94730d620a02f7fe709ee468e4a732..0000000000000000000000000000000000000000
--- a/conversations/conv_011805.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.620200741551227,
-      "duration": 4.620200741551227,
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-      "overlap": false,
-      "utterance_id": "7649-96682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96682.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.9458273346235755,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96682.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 73923
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.649764296062664,
-      "end_time": 13.165067099068931,
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-      "overlap": false,
-      "utterance_id": "6308-68359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
-      "real_speaker_id": "6308",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.354273655153895,
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-      "utterance_id": "7649-99140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-99140.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.594621918823197,
-      "end_time": 22.051715388617616,
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-      "overlap": false,
-      "utterance_id": "7649-96682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96682.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 146539
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 22.470879924673007,
-      "end_time": 26.993350097712394,
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-      "duration_frames": 72359,
-      "overlap": false,
-      "utterance_id": "2598-4654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4654.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.126365604796174,
-      "end_time": 32.0,
-      "duration": 4.873634395203826,
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-      "utterance_id": "7649-96667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96667.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6308/laugh/0009.wav",
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-      "start_time": 13.405981843838335,
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011809.json b/conversations/conv_011809.json
deleted file mode 100644
index 834a0d75c8452b56fcd8f5ee1c034a96ef447e97..0000000000000000000000000000000000000000
--- a/conversations/conv_011809.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1571-141320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-141320.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.845636144734407,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 88950,
-      "overlap": false,
-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.702987725653243,
-      "end_time": 19.336850291657516,
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-      "utterance_id": "8143-278223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 78140
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.932177108518204,
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-      "duration_frames": 100942,
-      "overlap": false,
-      "utterance_id": "7135-80033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7135-80033.flac |",
-      "real_speaker_id": "7135",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.75424856975134,
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-      "overlap": false,
-      "utterance_id": "8143-278206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278206.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8143/laugh/0031.wav",
-      "duration": 1.0644500345317525,
-      "start_time": 7.911563435752187,
-      "speaker_id": "8143"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011813.json b/conversations/conv_011813.json
deleted file mode 100644
index 93ea26be96018e349bac3ccf6c42a27e49dfb6d8..0000000000000000000000000000000000000000
--- a/conversations/conv_011813.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.021466624077457,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2301-157880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157880.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6276-76103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-76103.flac |",
-      "real_speaker_id": "6276",
-      "position_frames": 0
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-      "utterance_id": "2301-134424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-134424.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-76103.flac |",
-      "real_speaker_id": "6276",
-      "position_frames": 75052
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.62803637571382,
-      "end_time": 25.837046724035087,
-      "duration": 6.209010348321268,
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-      "duration_frames": 99344,
-      "overlap": false,
-      "utterance_id": "2301-134424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-134424.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 74857
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6276-62021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-62021.flac |",
-      "real_speaker_id": "6276",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2301/laugh/0045.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "2301"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2301/cough/0090.wav",
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-      "start_time": 0,
-      "speaker_id": "2301"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011818.json b/conversations/conv_011818.json
deleted file mode 100644
index f15e1514bce0480f445226a21023c449dd7f23ad..0000000000000000000000000000000000000000
--- a/conversations/conv_011818.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.944575812778257,
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-      "start_frame": 0,
-      "duration_frames": 95113,
-      "overlap": false,
-      "utterance_id": "77-121518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121518.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.229722548389718,
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-      "duration": 6.146053735392151,
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-      "overlap": false,
-      "utterance_id": "8005-113331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113331.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "duration": 3.468335535624272,
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-      "duration_frames": 55493,
-      "overlap": false,
-      "utterance_id": "215-127369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-127369.flac |",
-      "real_speaker_id": "215",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8005-113330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113330.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-122798.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
-      "start_time": 27.63575172628413,
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-      "start_frame": 442172,
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-      "utterance_id": "77-121526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121526.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "start_time": 10.408813671294391
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_3.wav",
-      "duration": 0.22834467120181406,
-      "start_time": 27.52182832610244
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
-      "duration": 2.188775510204082,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/215/laugh/0111.wav",
-      "duration": 1.1,
-      "start_time": 14.55194488137803,
-      "speaker_id": "215"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/77/laugh/0086.wav",
-      "duration": 1.6,
-      "start_time": 30.4,
-      "speaker_id": "77"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/77/cough/0086.wav",
-      "duration": 0.7332802833929775,
-      "start_time": 30.054607487360173,
-      "speaker_id": "77"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011825.json b/conversations/conv_011825.json
deleted file mode 100644
index 2fecc3b447e0879351be6e13b1a1c9d54b02fffe..0000000000000000000000000000000000000000
--- a/conversations/conv_011825.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.784744250397253,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "83-3054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.193552105553441,
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-      "utterance_id": "6000-86686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-86686.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.587749987653812,
-      "end_time": 14.00909719121168,
-      "duration": 3.421347203557868,
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-      "overlap": false,
-      "utterance_id": "83-11691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-11691.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.67685598240556,
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-      "utterance_id": "6000-86686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-86686.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 68541
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.657944295052605,
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-      "duration": 5.080085076910629,
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-      "overlap": false,
-      "utterance_id": "6000-86686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-86686.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 138175
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.74582051961275,
-      "end_time": 32.0,
-      "duration": 3.2541794803872506,
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-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 50390
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 25.682130951559095,
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
-      "duration": 0.7175510204081633,
-      "start_time": 11.16033390444073
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "83"
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-    {
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-      "start_time": 21.888266096768447,
-      "speaker_id": "8632"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6000/laugh/0069.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6000/cough/0041.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011829.json b/conversations/conv_011829.json
deleted file mode 100644
index 3d5d3f662d15bf00fc1b51f83cb1775918701955..0000000000000000000000000000000000000000
--- a/conversations/conv_011829.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6544",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 58664
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6544-67863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6544-67863.flac |",
-      "real_speaker_id": "6544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.561215870592626,
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-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
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-      "position_frames": 131771
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_011832.json b/conversations/conv_011832.json
deleted file mode 100644
index a9bb37595e6c95fe58fe062484eec11eb1e15a82..0000000000000000000000000000000000000000
--- a/conversations/conv_011832.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1154-129975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129975.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1154",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.93338614019408,
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-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "128-121911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-121911.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "128"
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-}
\ No newline at end of file
diff --git a/conversations/conv_011833.json b/conversations/conv_011833.json
deleted file mode 100644
index b22e37da9f2ea2e42851fa28fd4b368e7839dd29..0000000000000000000000000000000000000000
--- a/conversations/conv_011833.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.428571581289929,
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\ No newline at end of file
diff --git a/conversations/conv_011844.json b/conversations/conv_011844.json
deleted file mode 100644
index 9d319aa42173c2ad2e4a4907f8153897f9fec4a5..0000000000000000000000000000000000000000
--- a/conversations/conv_011844.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
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-  "total_duration": 31.313459038821826,
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-  "overlap_rate": 0.3333333333333333,
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\ No newline at end of file
diff --git a/conversations/conv_011848.json b/conversations/conv_011848.json
deleted file mode 100644
index 09679ead8d764997683c1b65a795d3036656f773..0000000000000000000000000000000000000000
--- a/conversations/conv_011848.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "position_frames": 0
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-    {
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-      "utterance_id": "2817-142371",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011852.json b/conversations/conv_011852.json
deleted file mode 100644
index 7366ad28d9cd71364cc1bef6208b4e91bec308a7..0000000000000000000000000000000000000000
--- a/conversations/conv_011852.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134196.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 87634
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "466"
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_011859.json b/conversations/conv_011859.json
deleted file mode 100644
index 10e89a5343dabcbe6008a42d81131806f0c2b3b9..0000000000000000000000000000000000000000
--- a/conversations/conv_011859.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.004891684125344,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "470-132610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-132610.flac |",
-      "real_speaker_id": "470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.6588717512213655,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5206-19376.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156115.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-132610.flac |",
-      "real_speaker_id": "470",
-      "position_frames": 100899
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.33724012034284,
-      "end_time": 25.960633981522268,
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-      "overlap": false,
-      "utterance_id": "5206-19376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5206-19376.flac |",
-      "real_speaker_id": "5206",
-      "position_frames": 88875
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.145802728839406,
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-      "duration_frames": 77745,
-      "overlap": true,
-      "utterance_id": "470-132610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-132610.flac |",
-      "real_speaker_id": "470",
-      "position_frames": 170385
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/470/laugh/0112.wav",
-      "duration": 1.16,
-      "start_time": 21.40825348193976,
-      "speaker_id": "470"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 21.359501733706868,
-      "speaker_id": "5206"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011864.json b/conversations/conv_011864.json
deleted file mode 100644
index 67b120d9c5ed864ecb04ba7eea2324fcb2ad1e77..0000000000000000000000000000000000000000
--- a/conversations/conv_011864.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "4979-26551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26551.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
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-      "utterance_id": "7816-108620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108620.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26563.flac |",
-      "real_speaker_id": "4979",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4447-14919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 65120
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7816-108620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108620.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 54069
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.667158712899056,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14931.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 9.435059189451037
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "duration": 1.72,
-      "start_time": 5.151085214310922,
-      "speaker_id": "4979"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4447/laugh/0117.wav",
-      "duration": 1.0930372404197626,
-      "start_time": 10.119403137306001,
-      "speaker_id": "4447"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4979/cough/0051.wav",
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-      "start_time": 18.980597729563534,
-      "speaker_id": "4979"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4447/cough/0133.wav",
-      "duration": 0.9969107984037577,
-      "start_time": 25.927636057453416,
-      "speaker_id": "4447"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4447/laugh/0059.wav",
-      "duration": 1.32,
-      "start_time": 29.16472243081424,
-      "speaker_id": "4447"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011865.json b/conversations/conv_011865.json
deleted file mode 100644
index f9d0aaa3b84b793a9b40bf27b72a103330a6f326..0000000000000000000000000000000000000000
--- a/conversations/conv_011865.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2416-152137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.19370857593726,
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-      "duration_frames": 60474,
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-      "utterance_id": "7135-80032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7135-80032.flac |",
-      "real_speaker_id": "7135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2416-152139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.90717437508195,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93182.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.000052590858594,
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-      "overlap": false,
-      "utterance_id": "7135-80033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7135-80033.flac |",
-      "real_speaker_id": "7135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 0.7229071890211962,
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-      "utterance_id": "2416-152139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 82935
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
-      "duration": 1.284350512981451,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 3.2299054921588044,
-      "start_time": 15.362501051902541
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2416/cough/0002.wav",
-      "duration": 0.43898297942673786,
-      "start_time": 11.04512197298578,
-      "speaker_id": "2416"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6138/laugh/0053.wav",
-      "duration": 1.0,
-      "start_time": 23.25281928068555,
-      "speaker_id": "6138"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7135/laugh/0131.wav",
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-      "start_time": 23.167811375326583,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2416/cough/0093.wav",
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-      "start_time": 30.44235501671583,
-      "speaker_id": "2416"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_011868.json b/conversations/conv_011868.json
deleted file mode 100644
index 197632296ed561a41bb1a2614df4844dd582e67f..0000000000000000000000000000000000000000
--- a/conversations/conv_011868.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_011872.json b/conversations/conv_011872.json
deleted file mode 100644
index 41e7af4f3e98b961938533af0462f7d9c089c853..0000000000000000000000000000000000000000
--- a/conversations/conv_011872.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_011886.json b/conversations/conv_011886.json
deleted file mode 100644
index 731d132de0ae50f8b13523476314cc71af7c583b..0000000000000000000000000000000000000000
--- a/conversations/conv_011886.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_011887.json b/conversations/conv_011887.json
deleted file mode 100644
index 7574b4edebd7a770bbc9a51c0ceb8034faa839c2..0000000000000000000000000000000000000000
--- a/conversations/conv_011887.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_011891.json b/conversations/conv_011891.json
deleted file mode 100644
index 378c257aa3c3af26fc175fa9ccd6d9f1b4d949b2..0000000000000000000000000000000000000000
--- a/conversations/conv_011891.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-127936.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_011901.json b/conversations/conv_011901.json
deleted file mode 100644
index 1ae5aef5fe59526c53f6a4b48a8ee43cb096c905..0000000000000000000000000000000000000000
--- a/conversations/conv_011901.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-1187.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_011917.json b/conversations/conv_011917.json
deleted file mode 100644
index 1e40c7354df11c8243b728a8e9b1bca3daa16d38..0000000000000000000000000000000000000000
--- a/conversations/conv_011917.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
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\ No newline at end of file
diff --git a/conversations/conv_011920.json b/conversations/conv_011920.json
deleted file mode 100644
index e45ced6781bc374b7997d5e32f50ceb6cc498c41..0000000000000000000000000000000000000000
--- a/conversations/conv_011920.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_011921.json b/conversations/conv_011921.json
deleted file mode 100644
index 4b5993869d0ca16e6bf25ab0bb84ed06fa47a15c..0000000000000000000000000000000000000000
--- a/conversations/conv_011921.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
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-      "speaker_id": "2895"
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\ No newline at end of file
diff --git a/conversations/conv_011937.json b/conversations/conv_011937.json
deleted file mode 100644
index 1c5bdc2779781c39943446d3687eabc7c03fb479..0000000000000000000000000000000000000000
--- a/conversations/conv_011937.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.742973377863553,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-63095.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65529.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5984-56840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56840.flac |",
-      "real_speaker_id": "5984",
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\ No newline at end of file
diff --git a/conversations/conv_011940.json b/conversations/conv_011940.json
deleted file mode 100644
index dd7af804fef88d19524137433e7dd4974af505d6..0000000000000000000000000000000000000000
--- a/conversations/conv_011940.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
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-      "real_speaker_id": "4898",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 155593
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-      "segment_id": "seg0005",
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-      "utterance_id": "6534-64470",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64470.flac |",
-      "real_speaker_id": "6534",
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\ No newline at end of file
diff --git a/conversations/conv_011956.json b/conversations/conv_011956.json
deleted file mode 100644
index a08f78fcdaf3cb2b0f415eeb0d760c823bb93d25..0000000000000000000000000000000000000000
--- a/conversations/conv_011956.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8123-275209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275209.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275193.flac |",
-      "real_speaker_id": "8123",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275193.flac |",
-      "real_speaker_id": "8123",
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-      "real_speaker_id": "5735",
-      "position_frames": 0
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-    {
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-      "position_frames": 190025
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_011960.json b/conversations/conv_011960.json
deleted file mode 100644
index e837efaf75e665e31be3a293fc9b410accda75a3..0000000000000000000000000000000000000000
--- a/conversations/conv_011960.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_011976.json b/conversations/conv_011976.json
deleted file mode 100644
index 753396502175573ed9da90507be7593d56d432e7..0000000000000000000000000000000000000000
--- a/conversations/conv_011976.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_011977.json b/conversations/conv_011977.json
deleted file mode 100644
index 02d27c1887d2448c0ca48ff2127b79e3e01a9df4..0000000000000000000000000000000000000000
--- a/conversations/conv_011977.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_011983.json b/conversations/conv_011983.json
deleted file mode 100644
index 112a382bae286ca206b861984d4c095c4fdad1b0..0000000000000000000000000000000000000000
--- a/conversations/conv_011983.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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\ No newline at end of file
diff --git a/conversations/conv_011995.json b/conversations/conv_011995.json
deleted file mode 100644
index e4589b970dbd205cde2e52f8c5f3b0000a0c88d6..0000000000000000000000000000000000000000
--- a/conversations/conv_011995.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19950812812663,
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\ No newline at end of file
diff --git a/conversations/conv_011998.json b/conversations/conv_011998.json
deleted file mode 100644
index 19aee432f3a4b878aef249b7b138d527cd26205f..0000000000000000000000000000000000000000
--- a/conversations/conv_011998.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5448",
-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_011999.json b/conversations/conv_011999.json
deleted file mode 100644
index bf6757877a2e1e251cd486141bdd5c4a5fe00d4a..0000000000000000000000000000000000000000
--- a/conversations/conv_011999.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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-      "position_frames": 90625
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_012004.json b/conversations/conv_012004.json
deleted file mode 100644
index e7a405ff7a01969bf7819250427f463f2bb2b7c0..0000000000000000000000000000000000000000
--- a/conversations/conv_012004.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "duration": 0.6155006738411422,
-      "start_time": 27.985163301094683,
-      "speaker_id": "596"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/451/cough/0047.wav",
-      "duration": 1.1474935172153615,
-      "start_time": 29.597453872017198,
-      "speaker_id": "451"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012008.json b/conversations/conv_012008.json
deleted file mode 100644
index b49bab0ae35124c9ba6945d564319188057caa44..0000000000000000000000000000000000000000
--- a/conversations/conv_012008.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.449173996843147,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.619308489144417,
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-      "utterance_id": "5393-19219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19219.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.127903043526379,
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-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.704943166839161,
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-      "duration": 5.904576320090556,
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-      "duration_frames": 94473,
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-      "utterance_id": "5393-19219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19219.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 89908
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.958998748880568,
-      "end_time": 24.194623591373013,
-      "duration": 4.235624842492444,
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-      "duration_frames": 67769,
-      "overlap": false,
-      "utterance_id": "2046-178027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-178027.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.680324937377478,
-      "end_time": 30.553209223551733,
-      "duration": 5.872884286174253,
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-      "utterance_id": "5393-19218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19218.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.19867022191281,
-      "end_time": 31.449173996843147,
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-      "start_frame": 483178,
-      "duration_frames": 20008,
-      "overlap": true,
-      "utterance_id": "3179-7135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7135.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-      "start_time": 0,
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-      "event_class": "cough",
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-      "duration": 0.4785125733628489,
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-      "speaker_id": "2046"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012012.json b/conversations/conv_012012.json
deleted file mode 100644
index 2e74202c2e5fd5286e7740942aff0344ce51824e..0000000000000000000000000000000000000000
--- a/conversations/conv_012012.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1445-139387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139387.flac |",
-      "real_speaker_id": "1445",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122442.flac |",
-      "real_speaker_id": "211",
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-      "overlap": false,
-      "utterance_id": "211-122425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122425.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139387.flac |",
-      "real_speaker_id": "1445",
-      "position_frames": 81809
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.61527960592757,
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-      "utterance_id": "5325-50109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.028068542051248,
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-      "duration": 1.9719314579487524,
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-      "duration_frames": 31550,
-      "overlap": false,
-      "utterance_id": "211-122442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122442.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 87694
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_0.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "5325"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012019.json b/conversations/conv_012019.json
deleted file mode 100644
index 43d13f969b4480e1d4e1585ff730ce335ad99340..0000000000000000000000000000000000000000
--- a/conversations/conv_012019.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129514.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "119",
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-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "8401",
-      "position_frames": 129756
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-    {
-      "segment_id": "seg0005",
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-      "end_time": 32.0,
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-      "duration_frames": 82367,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
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-      "position_frames": 234347
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012023.json b/conversations/conv_012023.json
deleted file mode 100644
index 56ba39a5c71416b38be2b51aaa48ec556ef2694d..0000000000000000000000000000000000000000
--- a/conversations/conv_012023.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "258-130878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
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-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_012024.json b/conversations/conv_012024.json
deleted file mode 100644
index c0beeb9c23a94f5669d7b083b0d7361dc76f2bd4..0000000000000000000000000000000000000000
--- a/conversations/conv_012024.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.505199290831754,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
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-      "real_speaker_id": "960",
-      "position_frames": 95231
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274346.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_012028.json b/conversations/conv_012028.json
deleted file mode 100644
index 387b9f8ab502bcceb2894a2c8bc3a4f433d2abf0..0000000000000000000000000000000000000000
--- a/conversations/conv_012028.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_012032.json b/conversations/conv_012032.json
deleted file mode 100644
index da9f2059da915d03d06926fb6849dc123699c7b1..0000000000000000000000000000000000000000
--- a/conversations/conv_012032.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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\ No newline at end of file
diff --git a/conversations/conv_012033.json b/conversations/conv_012033.json
deleted file mode 100644
index 9f9701087aba7dd4478bfef2ff4b098338909e4b..0000000000000000000000000000000000000000
--- a/conversations/conv_012033.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-124587.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105168.flac |",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2230/laugh/0026.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012045.json b/conversations/conv_012045.json
deleted file mode 100644
index 9934ecd8ad549cca74caafa49782614f6543a07e..0000000000000000000000000000000000000000
--- a/conversations/conv_012045.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102240.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-4145.flac |",
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-      "utterance_id": "5386-8684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-8684.flac |",
-      "real_speaker_id": "5386",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.929129611001034,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129596.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.524633839404654,
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-      "utterance_id": "7569-102232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.002652747694057,
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-      "utterance_id": "5386-8684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-8684.flac |",
-      "real_speaker_id": "5386",
-      "position_frames": 105340
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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\ No newline at end of file
diff --git a/conversations/conv_012049.json b/conversations/conv_012049.json
deleted file mode 100644
index f83e561a5acf70cf35e9e87237ce1d70417a2b2e..0000000000000000000000000000000000000000
--- a/conversations/conv_012049.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300234.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 111374
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_012053.json b/conversations/conv_012053.json
deleted file mode 100644
index 5990e2e1b3d3174948ba1ae8301a24895869fbf6..0000000000000000000000000000000000000000
--- a/conversations/conv_012053.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7215",
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_012058.json b/conversations/conv_012058.json
deleted file mode 100644
index 2504452b27b7e868fb90dd67c72c01904d1d26df..0000000000000000000000000000000000000000
--- a/conversations/conv_012058.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "5133-30591",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 98715
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.572313800848846,
-      "end_time": 32.0,
-      "duration": 6.427686199151154,
-      "start_frame": 409157,
-      "duration_frames": 102842,
-      "overlap": false,
-      "utterance_id": "8008-271812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271812.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 99342
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.142467238426555,
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-      "start_time": 7.943409133601386
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-      "event_class": "Alarm_bell_ringing",
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-      "duration": 4.037414965986395,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5133/laugh/0060.wav",
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-      "start_time": 0,
-      "speaker_id": "5133"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5133/cough/0100.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8008/cough/0066.wav",
-      "duration": 0.986030426627877,
-      "start_time": 31.013969573372123,
-      "speaker_id": "8008"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012064.json b/conversations/conv_012064.json
deleted file mode 100644
index 11a0e5c300c1ee35c17b7f4a7020d99cf1e9708d..0000000000000000000000000000000000000000
--- a/conversations/conv_012064.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.1345312043219735,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.480354575628449,
-      "end_time": 8.732591944773555,
-      "duration": 5.252237369145106,
-      "start_frame": 55685,
-      "duration_frames": 84035,
-      "overlap": false,
-      "utterance_id": "6951-79737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6951-79737.flac |",
-      "real_speaker_id": "6951",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.123211976243832,
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-      "overlap": false,
-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 50152
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.094176076827011,
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-      "overlap": false,
-      "utterance_id": "6951-79737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6951-79737.flac |",
-      "real_speaker_id": "6951",
-      "position_frames": 84035
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.03540524084466,
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-      "duration": 6.939572750570994,
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-      "duration_frames": 111033,
-      "overlap": false,
-      "utterance_id": "101-126860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126860.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.363071789348737,
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-      "duration": 5.636928210651263,
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-      "overlap": false,
-      "utterance_id": "101-126859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126859.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
-      "start_time": 7.134836412893681
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 2.2330385487528344,
-      "start_time": 9.553156866837345
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6951/laugh/0044.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.8,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/101/laugh/0068.wav",
-      "duration": 1.0,
-      "start_time": 25.296857649653976,
-      "speaker_id": "101"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012065.json b/conversations/conv_012065.json
deleted file mode 100644
index e9cd0327a394f7813e750abadb5163de530580ca..0000000000000000000000000000000000000000
--- a/conversations/conv_012065.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3618-175930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175930.flac |",
-      "real_speaker_id": "3618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.540918140275909,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
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-      "overlap": false,
-      "utterance_id": "2204-131732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
-      "real_speaker_id": "2204",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "overlap": true,
-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 95123
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.121428216700373,
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-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 179783
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.971461395693108,
-      "end_time": 32.0,
-      "duration": 4.028538604306892,
-      "start_frame": 447543,
-      "duration_frames": 64456,
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-      "utterance_id": "2204-131732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
-      "real_speaker_id": "2204",
-      "position_frames": 73127
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 0,
-      "speaker_id": "3618"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2204/cough/0092.wav",
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-      "speaker_id": "2204"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/102/laugh/0033.wav",
-      "duration": 0.88,
-      "start_time": 20.77239071820858,
-      "speaker_id": "102"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/102/cough/0005.wav",
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-      "start_time": 22.330193991635916,
-      "speaker_id": "102"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012069.json b/conversations/conv_012069.json
deleted file mode 100644
index 6512852121bd5ab8d2e58fd307893c105adc091a..0000000000000000000000000000000000000000
--- a/conversations/conv_012069.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8163-116797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8163-116797.flac |",
-      "real_speaker_id": "8163",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "8163",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-133396.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.955268988916018,
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-      "overlap": false,
-      "utterance_id": "8163-274549",
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-      "real_speaker_id": "8163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.405101372214006,
-      "end_time": 32.0,
-      "duration": 4.5948986277859944,
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-      "utterance_id": "2930-163437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163437.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1182/cough/0005.wav",
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-      "start_time": 20.35858316603816,
-      "speaker_id": "1182"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012073.json b/conversations/conv_012073.json
deleted file mode 100644
index 19bd2339142815b9334eaaad77508b882b75e28e..0000000000000000000000000000000000000000
--- a/conversations/conv_012073.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "duration_frames": 98334,
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-      "utterance_id": "7700-92925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012086.json b/conversations/conv_012086.json
deleted file mode 100644
index fda18a8ca168e34ca9c546032f8eb885e7a24227..0000000000000000000000000000000000000000
--- a/conversations/conv_012086.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34505.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109176.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-10982.flac |",
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-      "position_frames": 0
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-      "start_time": 22.667104994105394,
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-      "utterance_id": "7959-109185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109185.flac |",
-      "real_speaker_id": "7959",
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-  "foreground_events": [
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_012090.json b/conversations/conv_012090.json
deleted file mode 100644
index 666c9d09cd84b3d0232b417a263f2dfab56793b6..0000000000000000000000000000000000000000
--- a/conversations/conv_012090.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98645.flac |",
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-      "real_speaker_id": "1717",
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-      "utterance_id": "5735-48575",
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-      "real_speaker_id": "5735",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98645.flac |",
-      "real_speaker_id": "7478",
-      "position_frames": 195491
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012100.json b/conversations/conv_012100.json
deleted file mode 100644
index e60a441227768d693a83722b775497a3f3ad16fd..0000000000000000000000000000000000000000
--- a/conversations/conv_012100.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "5319-42637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-42637.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
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-    {
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-      "utterance_id": "7867-110742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110742.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "5319-84357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-84357.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7867-275218",
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-      "real_speaker_id": "7867",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "5860",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7867-110742",
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-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012116.json b/conversations/conv_012116.json
deleted file mode 100644
index 1a55c12c31190f2a348acd1dfbe28eb600a39abd..0000000000000000000000000000000000000000
--- a/conversations/conv_012116.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.700930736911957,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5154-6174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-6174.flac |",
-      "real_speaker_id": "5154",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123504.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 61144
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-      "real_speaker_id": "5154",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012120.json b/conversations/conv_012120.json
deleted file mode 100644
index 921bc1da00d6d5c05e3764f35557a82974940189..0000000000000000000000000000000000000000
--- a/conversations/conv_012120.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.092027155489557,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2545-135235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.253043168809018,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132800.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132782.flac |",
-      "real_speaker_id": "1316",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_012136.json b/conversations/conv_012136.json
deleted file mode 100644
index 5d3305949febeef3b1a867da6e392c8d5f698f63..0000000000000000000000000000000000000000
--- a/conversations/conv_012136.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7871-107225.flac |",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012141.json b/conversations/conv_012141.json
deleted file mode 100644
index 933160eef8ea2010efae390a1bef428dbe42a1f3..0000000000000000000000000000000000000000
--- a/conversations/conv_012141.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-    {
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-  "foreground_events": [
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-      "speaker_id": "6324"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4161/laugh/0001.wav",
-      "duration": 1.16,
-      "start_time": 8.847958463669396,
-      "speaker_id": "4161"
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-      "event_class": "cough",
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-      "duration": 0.39307615736405466,
-      "start_time": 26.447262160932784,
-      "speaker_id": "4161"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012157.json b/conversations/conv_012157.json
deleted file mode 100644
index 462b113c809ed86070bb6d53516e8513662a27e5..0000000000000000000000000000000000000000
--- a/conversations/conv_012157.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5810-8674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8674.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.838126787956407,
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-      "overlap": false,
-      "utterance_id": "2553-163692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163692.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "51-121055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/51-121055.flac |",
-      "real_speaker_id": "51",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.278743396842064,
-      "end_time": 22.83464396213732,
-      "duration": 5.555900565295258,
-      "start_frame": 276459,
-      "duration_frames": 88894,
-      "overlap": false,
-      "utterance_id": "2553-163730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163730.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.708321201472064,
-      "end_time": 27.59950219331159,
-      "duration": 4.891180991839527,
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-      "duration_frames": 78258,
-      "overlap": true,
-      "utterance_id": "51-121055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/51-121055.flac |",
-      "real_speaker_id": "51",
-      "position_frames": 70969
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.7974968464167,
-      "end_time": 32.0,
-      "duration": 3.202503153583301,
-      "start_frame": 460759,
-      "duration_frames": 51240,
-      "overlap": false,
-      "utterance_id": "5810-8674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8674.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 71804
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2553/laugh/0064.wav",
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-      "start_time": 4.414267522019174,
-      "speaker_id": "2553"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012161.json b/conversations/conv_012161.json
deleted file mode 100644
index 777b7dd2cadd5a6b1827a9913f2db46bbba881c1..0000000000000000000000000000000000000000
--- a/conversations/conv_012161.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.23402577270156,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164323.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 0
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-      "start_time": 11.108446427617597,
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-      "utterance_id": "3650-168636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168636.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 85998
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.4050744816798,
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-      "overlap": false,
-      "utterance_id": "3650-168637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168637.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.75009373018729,
-      "end_time": 32.0,
-      "duration": 5.249906269812708,
-      "start_frame": 428001,
-      "duration_frames": 83998,
-      "overlap": false,
-      "utterance_id": "1870-164323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164323.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 72190
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.04,
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-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 31.12,
-      "speaker_id": "1870"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012166.json b/conversations/conv_012166.json
deleted file mode 100644
index 7ef91cccfeacf9bad368eea2c80beed910deda54..0000000000000000000000000000000000000000
--- a/conversations/conv_012166.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.382766320991383,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "831-130746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130746.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1593",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-80463.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.074094433079285,
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-      "utterance_id": "831-130746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130746.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1593-94847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1593-94847.flac |",
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-      "real_speaker_id": "1593",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "6035-58142",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "speaker_id": "6035"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012176.json b/conversations/conv_012176.json
deleted file mode 100644
index 162ad65d43cc394685d304310512acffcc8e2569..0000000000000000000000000000000000000000
--- a/conversations/conv_012176.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2843-152918",
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-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "8424",
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-      "duration": 1.279087445666157,
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-      "utterance_id": "8424-281344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8424-281344.flac |",
-      "real_speaker_id": "8424",
-      "position_frames": 73563
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6391/laugh/0082.wav",
-      "duration": 1.38,
-      "start_time": 29.411621289304172,
-      "speaker_id": "6391"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "8424"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012177.json b/conversations/conv_012177.json
deleted file mode 100644
index 32b5be61372993273e5f412d24d8d38a67812689..0000000000000000000000000000000000000000
--- a/conversations/conv_012177.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.34469302382592,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.154384006301386,
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-      "overlap": false,
-      "utterance_id": "318-124224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.490890548998668,
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-      "utterance_id": "6627-67850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
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-      "utterance_id": "318-124164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124164.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.291675224834707,
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-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.697076928135637,
-      "end_time": 24.67025172344482,
-      "duration": 4.973174795309182,
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-      "duration_frames": 79570,
-      "overlap": true,
-      "utterance_id": "6627-67850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 71878
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.669119123938042,
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-      "duration": 5.675573899887877,
-      "start_frame": 410705,
-      "duration_frames": 90809,
-      "overlap": false,
-      "utterance_id": "6627-67844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67844.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_9.wav",
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-  "paralinguistic_events": [
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.16,
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-      "event_class": "cough",
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-      "duration": 1.02,
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-}
\ No newline at end of file
diff --git a/conversations/conv_012182.json b/conversations/conv_012182.json
deleted file mode 100644
index d6798d2507bdcfc2105b60a67f4fb2f8a0ea4039..0000000000000000000000000000000000000000
--- a/conversations/conv_012182.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.50885872535359,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "4085-11517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11517.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11517.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 75227
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "19-227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 74720
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.929825946062778,
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-      "utterance_id": "3934-102413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3934-102413.flac |",
-      "real_speaker_id": "3934",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.71322179850216,
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-      "utterance_id": "4085-11516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11516.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3934/laugh/0080.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012189.json b/conversations/conv_012189.json
deleted file mode 100644
index 0885582fcde075fd696eabbbe8d123d7df3bb03b..0000000000000000000000000000000000000000
--- a/conversations/conv_012189.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6534-64469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64469.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.542030625604969,
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-      "overlap": false,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.976189379727884,
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-      "overlap": false,
-      "utterance_id": "6534-71091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-71091.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6359-64713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
-      "real_speaker_id": "6359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "6534",
-      "position_frames": 60153
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "end_time": 32.0,
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-      "utterance_id": "6534-64470",
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-  ],
-  "background_events": [
-    {
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6974/laugh/0027.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6534/cough/0076.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012194.json b/conversations/conv_012194.json
deleted file mode 100644
index 891ba77a4171ae93ba6cd3629b9229d00e992629..0000000000000000000000000000000000000000
--- a/conversations/conv_012194.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "end_time": 6.02407935276606,
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-      "utterance_id": "8675-292352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5189-56574",
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-      "real_speaker_id": "5189",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5189-56574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-56574.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 53865
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.273244840452666,
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-      "duration": 0.7267551595473343,
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-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 107793
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8675/laugh/0100.wav",
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-      "duration": 1.16,
-      "start_time": 28.633076234166985,
-      "speaker_id": "5189"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5189/cough/0029.wav",
-      "duration": 1.0325727889582332,
-      "start_time": 30.853085791869375,
-      "speaker_id": "5189"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/laugh/0013.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "1001"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012198.json b/conversations/conv_012198.json
deleted file mode 100644
index 46182ec0a1acb936ab8f3fc96cf07628f0189d88..0000000000000000000000000000000000000000
--- a/conversations/conv_012198.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.5423767080631485,
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-      "duration": 5.999489682389063,
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-      "utterance_id": "1323-149236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-149236.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.158047865841109,
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-      "duration_frames": 77288,
-      "overlap": false,
-      "utterance_id": "1323-138617",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138617.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.45971362919459,
-      "end_time": 22.956649822382282,
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-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 81487
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.298197810751255,
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-      "utterance_id": "5029-80197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-80197.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.20313396337418,
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-      "duration": 0.7968660366258185,
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-      "duration_frames": 12749,
-      "overlap": false,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 169437
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "1323"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1943/laugh/0044.wav",
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-      "speaker_id": "1943"
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_012199.json b/conversations/conv_012199.json
deleted file mode 100644
index cbf3dcc598a72637bc3360eda65d020b45180115..0000000000000000000000000000000000000000
--- a/conversations/conv_012199.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19980670455036,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1572-141715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141715.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 4.667788130414523,
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-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.373926646966655,
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-      "utterance_id": "1572-141718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.47365535667725,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 88991
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 22.309704283547298,
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-      "duration_frames": 63340,
-      "overlap": false,
-      "utterance_id": "1638-84448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84448.flac |",
-      "real_speaker_id": "1638",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84447.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "start_time": 15.46833651642032,
-      "speaker_id": "1572"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012205.json b/conversations/conv_012205.json
deleted file mode 100644
index 65c3d1dd25fc49e7e1db9de6be7701e032dc88b4..0000000000000000000000000000000000000000
--- a/conversations/conv_012205.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.490503077860491,
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-      "overlap": true,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.324707623576488,
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-      "duration_frames": 110464,
-      "overlap": true,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 99259
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.850913740111906,
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-      "utterance_id": "6025-58760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58760.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.237319830582805,
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-      "duration": 5.7626801694171945,
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-      "duration_frames": 92202,
-      "overlap": false,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 209723
-    }
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_012208.json b/conversations/conv_012208.json
deleted file mode 100644
index 5ddaf3c43ad84b81c94dfde4745a19263ac02857..0000000000000000000000000000000000000000
--- a/conversations/conv_012208.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "6539-66420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66420.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.563433398248946,
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-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 79560,
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-      "utterance_id": "6539-66421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66421.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.50236767841219,
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-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
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-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 51521
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "6539"
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-      "speaker_id": "6539"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012209.json b/conversations/conv_012209.json
deleted file mode 100644
index 3515c0763d8c31a32d034d8a748552192a7f2534..0000000000000000000000000000000000000000
--- a/conversations/conv_012209.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.965718945518604,
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-      "overlap": false,
-      "utterance_id": "781-127518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.1928507252014,
-      "end_time": 11.957072014102785,
-      "duration": 6.7642212889013855,
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-      "duration_frames": 108227,
-      "overlap": false,
-      "utterance_id": "253-124400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-124400.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.807959648855629,
-      "end_time": 18.453590154655018,
-      "duration": 5.645630505799389,
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-      "duration_frames": 90330,
-      "overlap": false,
-      "utterance_id": "781-126737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-126737.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.94555113075851,
-      "end_time": 25.146399433613613,
-      "duration": 6.200848302855103,
-      "start_frame": 303128,
-      "duration_frames": 99213,
-      "overlap": false,
-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.496401724608113,
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-      "duration": 6.503598275391887,
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-      "overlap": false,
-      "utterance_id": "253-126864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-126864.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012213.json b/conversations/conv_012213.json
deleted file mode 100644
index 65e8e12e90c532fa0f9327555c1c54e13c16db1a..0000000000000000000000000000000000000000
--- a/conversations/conv_012213.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7011-66622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
-      "real_speaker_id": "7011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-121903.flac |",
-      "real_speaker_id": "937",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-131548.flac |",
-      "real_speaker_id": "937",
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-      "segment_id": "seg0004",
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-      "utterance_id": "7011-66622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
-      "real_speaker_id": "7011",
-      "position_frames": 97279
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.378475113306138,
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-      "duration": 4.621524886693862,
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-      "overlap": false,
-      "utterance_id": "951-138582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-138582.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "951"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012222.json b/conversations/conv_012222.json
deleted file mode 100644
index 1024dc4b6867b58a90b609e552536da8019f97b6..0000000000000000000000000000000000000000
--- a/conversations/conv_012222.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.63787731402065,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
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-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 74417
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6947-53263",
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-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6947-53261",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_012224.json b/conversations/conv_012224.json
deleted file mode 100644
index bda8f1bcf435da2d7f00b116743eae8627dcdbd8..0000000000000000000000000000000000000000
--- a/conversations/conv_012224.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.001699360618375,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "133-142924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-142924.flac |",
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-    {
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "6689-64286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
-      "real_speaker_id": "6689",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
-      "duration": 2.9051909640719993,
-      "start_time": 18.15299024381424
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_012225.json b/conversations/conv_012225.json
deleted file mode 100644
index acc0a7985bf0a1492d3da10b5851ccf218e62ef4..0000000000000000000000000000000000000000
--- a/conversations/conv_012225.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 4.452431369808352,
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-      "duration_frames": 71238,
-      "overlap": false,
-      "utterance_id": "698-122876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122876.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.5775677143285485,
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-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.200535019017046,
-      "end_time": 13.548845693971895,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122876.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 71238
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 66326
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 21.063070081498125,
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-      "utterance_id": "3792-176660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.857698846760655,
-      "end_time": 29.96363578348117,
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-      "start_frame": 397723,
-      "duration_frames": 81694,
-      "overlap": false,
-      "utterance_id": "698-122863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122863.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.32619368476047,
-      "end_time": 32.0,
-      "duration": 0.6738063152395313,
-      "start_frame": 501219,
-      "duration_frames": 10780,
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-      "utterance_id": "698-122863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122863.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 81694
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_2.wav",
-      "duration": 0.5918140589569161,
-      "start_time": 22.355835461116257
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/698/laugh/0020.wav",
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-      "start_time": 9.745237188387136,
-      "speaker_id": "698"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2056/cough/0016.wav",
-      "duration": 1.4429959082102362,
-      "start_time": 12.072398662234816,
-      "speaker_id": "2056"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3792/laugh/0076.wav",
-      "duration": 0.8383870134798805,
-      "start_time": 24.58600936767757,
-      "speaker_id": "3792"
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-    {
-      "event_class": "cough",
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-      "duration": 0.583351240735495,
-      "start_time": 22.084219241354248,
-      "speaker_id": "3792"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012229.json b/conversations/conv_012229.json
deleted file mode 100644
index c6451a5b0dbd940019f7dcd6cf76b57c6bd5e4b9..0000000000000000000000000000000000000000
--- a/conversations/conv_012229.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.090263356615987,
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-      "overlap": false,
-      "utterance_id": "4484-75922",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-75922.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 63633
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.357618233474996,
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-      "utterance_id": "4484-37119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-37119.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.285702228124713,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 140190
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.05134849720188,
-      "end_time": 29.972342022784975,
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-      "overlap": false,
-      "utterance_id": "4484-75922",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-75922.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 67539
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.300274813310082,
-      "end_time": 32.0,
-      "duration": 1.6997251866899177,
-      "start_frame": 484804,
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-      "overlap": false,
-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 238244
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4420/laugh/0077.wav",
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-      "start_time": 10.344793668855619,
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-    {
-      "event_class": "laugh",
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-      "start_time": 22.6049082548555,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012233.json b/conversations/conv_012233.json
deleted file mode 100644
index 8cc26b12a0b7eca303d254cb83aa5903f4ec9815..0000000000000000000000000000000000000000
--- a/conversations/conv_012233.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1736-142281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-142281.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.489715646129283,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3521-12715.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.598063185646417,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3521-12715.flac |",
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-    {
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-      "utterance_id": "1736-152007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-152007.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.1034283001236,
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-      "duration": 0.8965716998764002,
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-      "utterance_id": "3521-7591",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/232915.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3521/laugh/0098.wav",
-      "duration": 1.52,
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-      "speaker_id": "3521"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012234.json b/conversations/conv_012234.json
deleted file mode 100644
index b091f6291f27fc2e4747478ce211801e98a260dc..0000000000000000000000000000000000000000
--- a/conversations/conv_012234.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.106755430096026,
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-      "start_frame": 0,
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1265-135635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
-      "real_speaker_id": "1265",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 206300
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.092577868608807,
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-      "utterance_id": "1445-139404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139404.flac |",
-      "real_speaker_id": "1445",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.546799712013932,
-      "end_time": 32.0,
-      "duration": 0.4532002879860677,
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-      "overlap": false,
-      "utterance_id": "1265-135636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
-      "duration": 0.23598639455782314,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3540/laugh/0004.wav",
-      "duration": 0.9268898930374757,
-      "start_time": 0,
-      "speaker_id": "3540"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3540/laugh/0076.wav",
-      "duration": 1.6357697181779804,
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-      "speaker_id": "3540"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/laugh/0114.wav",
-      "duration": 1.92,
-      "start_time": 19.234024596137807,
-      "speaker_id": "1265"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012244.json b/conversations/conv_012244.json
deleted file mode 100644
index 45413fe9af93a638c2ab626dcab4a7f222fc25f3..0000000000000000000000000000000000000000
--- a/conversations/conv_012244.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.610311959943288,
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-      "start_frame": 0,
-      "duration_frames": 89764,
-      "overlap": false,
-      "utterance_id": "307-127535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127535.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.012180282599823,
-      "end_time": 10.716153433214812,
-      "duration": 4.703973150614988,
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-      "overlap": false,
-      "utterance_id": "307-127535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127535.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 89764
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.840763865260083,
-      "end_time": 15.52326540009369,
-      "duration": 4.682501534833607,
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-      "duration_frames": 74920,
-      "overlap": false,
-      "utterance_id": "4859-22176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-22176.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.94039719826401,
-      "end_time": 21.163086452048013,
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-      "utterance_id": "307-127540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127540.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.854010544711887,
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-      "utterance_id": "1743-142912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142912.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.854888340097244,
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-      "duration_frames": 50321,
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-      "utterance_id": "4859-26870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-26870.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.004042803836915,
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "307"
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-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "event_class": "cough",
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-      "speaker_id": "4859"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012248.json b/conversations/conv_012248.json
deleted file mode 100644
index d1035a5fc42b07008ed4ffd241e800afc6dc8483..0000000000000000000000000000000000000000
--- a/conversations/conv_012248.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.978356502256474,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "4481-17498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4481-17498.flac |",
-      "real_speaker_id": "4481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.7626826005952045,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.338703948165403,
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-      "overlap": false,
-      "utterance_id": "474-141425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-141425.flac |",
-      "real_speaker_id": "474",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.791109625382326,
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-      "utterance_id": "7762-280917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4481-17498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4481-17498.flac |",
-      "real_speaker_id": "4481",
-      "position_frames": 79412
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_012252.json b/conversations/conv_012252.json
deleted file mode 100644
index ce5c5b2401fd121fe49852058991077094ef7005..0000000000000000000000000000000000000000
--- a/conversations/conv_012252.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.859993744543715,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 54724,
-      "overlap": true,
-      "utterance_id": "8677-246948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-246948.flac |",
-      "real_speaker_id": "8677",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.272624248105053,
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-      "duration_frames": 49332,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 98727
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8677-296078",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-296078.flac |",
-      "real_speaker_id": "8677",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.101747481696727,
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-      "duration": 3.8982525183032735,
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-      "duration_frames": 62372,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 148059
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "cough",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_012263.json b/conversations/conv_012263.json
deleted file mode 100644
index d2088d405683221598c819484f81bc8335688d75..0000000000000000000000000000000000000000
--- a/conversations/conv_012263.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.621166081965866,
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-      "utterance_id": "3747-173589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.261852651686388,
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-      "overlap": true,
-      "utterance_id": "1034-121119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.164385358688204,
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-      "utterance_id": "1335-27593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-27593.flac |",
-      "real_speaker_id": "1335",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-160602.flac |",
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-      "speaker_id": "1335"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012264.json b/conversations/conv_012264.json
deleted file mode 100644
index 19d3c295235835d7e2de6064d69c140c93a6c96d..0000000000000000000000000000000000000000
--- a/conversations/conv_012264.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
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-      "utterance_id": "3054-128244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
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-      "start_time": 16.937929626667884,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-122801.flac |",
-      "real_speaker_id": "207",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.34915780401873,
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-      "utterance_id": "3054-128245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128245.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-143321.flac |",
-      "real_speaker_id": "207",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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\ No newline at end of file
diff --git a/conversations/conv_012268.json b/conversations/conv_012268.json
deleted file mode 100644
index 60ebb96ff2e157e5f610a069fcfef0d76b3f4d9b..0000000000000000000000000000000000000000
--- a/conversations/conv_012268.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.90057641287613,
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-      "utterance_id": "7480-93348",
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-      "real_speaker_id": "7480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.77839388097975,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
-      "real_speaker_id": "3959",
-      "position_frames": 209687
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "7480"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012272.json b/conversations/conv_012272.json
deleted file mode 100644
index 5219bdd1c27eddf23f85c34aeacea46edfc6bae1..0000000000000000000000000000000000000000
--- a/conversations/conv_012272.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
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-      "segment_id": "seg0005",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_012275.json b/conversations/conv_012275.json
deleted file mode 100644
index 87175a8d54797fa69612277d1676f943746a4b73..0000000000000000000000000000000000000000
--- a/conversations/conv_012275.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1097-136912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136912.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136912.flac |",
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-    {
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-      "overlap": false,
-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 170076
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "speaker_id": "1097"
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-    {
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-      "event_class": "laugh",
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-      "start_time": 29.965658712418332,
-      "speaker_id": "7145"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012287.json b/conversations/conv_012287.json
deleted file mode 100644
index 9229f4e820cfad8cbbd752f1b580002023220755..0000000000000000000000000000000000000000
--- a/conversations/conv_012287.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.630232291479361,
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-      "utterance_id": "6330-62851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62851.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.268156649520938,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6330-62851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62851.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 90083
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.857677806253037,
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-      "duration": 4.8229724110298795,
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.88686571024232,
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-      "utterance_id": "2751-142363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.750422830210088,
-      "end_time": 32.0,
-      "duration": 3.2495771697899123,
-      "start_frame": 460006,
-      "duration_frames": 51993,
-      "overlap": false,
-      "utterance_id": "2751-142362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142362.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
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-      "event_class": "Dog",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_012291.json b/conversations/conv_012291.json
deleted file mode 100644
index ac1c8dd5f4f5504156a188c139ef5df4d80171d5..0000000000000000000000000000000000000000
--- a/conversations/conv_012291.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.91496915955551,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "593-126932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126932.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.056359045202442,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126932.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 90544
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126929.flac |",
-      "real_speaker_id": "593",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "593-126929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126929.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 66428
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "612-121760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121760.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
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-      "speaker_id": "593"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012301.json b/conversations/conv_012301.json
deleted file mode 100644
index 718b6671feb08fc7e08a0ee786b7672de5c35a7c..0000000000000000000000000000000000000000
--- a/conversations/conv_012301.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.33346468020339,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "122",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40544.flac |",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_012317.json b/conversations/conv_012317.json
deleted file mode 100644
index 7e9786b16956eaaecd18fa0ad887c59a881150f3..0000000000000000000000000000000000000000
--- a/conversations/conv_012317.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 81774,
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-      "utterance_id": "3467-166570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166570.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166572.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_012321.json b/conversations/conv_012321.json
deleted file mode 100644
index db4a4777a3b1f92d236027899fe443dfaa3b0495..0000000000000000000000000000000000000000
--- a/conversations/conv_012321.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "6189",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.566265800221752,
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-      "utterance_id": "6189-64708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.950556629622,
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-      "utterance_id": "3703-71531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_012326.json b/conversations/conv_012326.json
deleted file mode 100644
index 00267a44d806e99c18ab5a946145110111fd6424..0000000000000000000000000000000000000000
--- a/conversations/conv_012326.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.252813182927852,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
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-      "real_speaker_id": "815",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 94289
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.709760136336087,
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-      "utterance_id": "4955-28245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28245.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
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-      "event_class": "Blender",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012330.json b/conversations/conv_012330.json
deleted file mode 100644
index b5d9510cdd2a2226a38e4eb63d80485eb04a1ca1..0000000000000000000000000000000000000000
--- a/conversations/conv_012330.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-290631.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8316-279798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 79403
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-41911.flac |",
-      "real_speaker_id": "5389",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 149463
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "6249",
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012337.json b/conversations/conv_012337.json
deleted file mode 100644
index 40889f04f0d600833a5b197bebfaeb3cc55bac3f..0000000000000000000000000000000000000000
--- a/conversations/conv_012337.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "6224",
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-      "real_speaker_id": "6224",
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-      "utterance_id": "6224-34608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-34608.flac |",
-      "real_speaker_id": "6224",
-      "position_frames": 59494
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-  ],
-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-      "speaker_id": "5217"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012340.json b/conversations/conv_012340.json
deleted file mode 100644
index 04cd6912e930c21d37534028674af3c9c1d084b8..0000000000000000000000000000000000000000
--- a/conversations/conv_012340.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "3959-706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
-      "real_speaker_id": "3959",
-      "position_frames": 0
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-      "start_time": 4.761598027188828,
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\ No newline at end of file
diff --git a/conversations/conv_012356.json b/conversations/conv_012356.json
deleted file mode 100644
index 100e818338e0b976f2ebc44c5b28edc542966dc4..0000000000000000000000000000000000000000
--- a/conversations/conv_012356.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/696-92939.flac |",
-      "real_speaker_id": "696",
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "481-123719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123719.flac |",
-      "real_speaker_id": "481",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 27.006219237085197,
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-      "utterance_id": "8197-278218",
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-      "position_frames": 0
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_012360.json b/conversations/conv_012360.json
deleted file mode 100644
index 5e92edc1817915835f8fe7d2637cbc51baf87fc3..0000000000000000000000000000000000000000
--- a/conversations/conv_012360.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 0
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-    {
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-    {
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-      "start_time": 0,
-      "speaker_id": "2997"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012361.json b/conversations/conv_012361.json
deleted file mode 100644
index ea144ba995ff5ad3051efccd0ab86f68f2bf57ce..0000000000000000000000000000000000000000
--- a/conversations/conv_012361.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.9474415529505227,
-      "duration": 3.9474415529505227,
-      "start_frame": 0,
-      "duration_frames": 63159,
-      "overlap": false,
-      "utterance_id": "2448-163517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163517.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.392754117677204,
-      "end_time": 9.60263605209342,
-      "duration": 5.209881934416217,
-      "start_frame": 70284,
-      "duration_frames": 83358,
-      "overlap": false,
-      "utterance_id": "5727-47032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47032.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.898066992620258,
-      "end_time": 14.734600324275485,
-      "duration": 4.836533331655227,
-      "start_frame": 158369,
-      "duration_frames": 77384,
-      "overlap": false,
-      "utterance_id": "811-130148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.96446568204584,
-      "end_time": 18.162923967369657,
-      "duration": 3.1984582853238184,
-      "start_frame": 239431,
-      "duration_frames": 51175,
-      "overlap": false,
-      "utterance_id": "2448-141428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-141428.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.784903727168878,
-      "end_time": 24.846461109132036,
-      "duration": 6.0615573819631585,
-      "start_frame": 300558,
-      "duration_frames": 96984,
-      "overlap": false,
-      "utterance_id": "811-130143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130143.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.494419107846724,
-      "end_time": 28.757174864359882,
-      "duration": 3.262755756513159,
-      "start_frame": 407910,
-      "duration_frames": 52204,
-      "overlap": false,
-      "utterance_id": "2448-141428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-141428.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 51175
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.761202581837455,
-      "end_time": 32.0,
-      "duration": 2.2387974181625445,
-      "start_frame": 476179,
-      "duration_frames": 35820,
-      "overlap": false,
-      "utterance_id": "811-130148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 77384
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 1.8249782769043472,
-      "start_time": 21.83095835616704
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/811/cough/0009.wav",
-      "duration": 0.3678866678130022,
-      "start_time": 18.267364585300616,
-      "speaker_id": "811"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/811/laugh/0060.wav",
-      "duration": 0.7323200143538283,
-      "start_time": 29.821729045769054,
-      "speaker_id": "811"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012367.json b/conversations/conv_012367.json
deleted file mode 100644
index a10db1052905fa8a7e18e05b730c50b9af213c1f..0000000000000000000000000000000000000000
--- a/conversations/conv_012367.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.615399266558547,
-      "duration": 3.615399266558547,
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-      "overlap": false,
-      "utterance_id": "2427-154671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154671.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.7297185919669973,
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-      "duration_frames": 89683,
-      "overlap": false,
-      "utterance_id": "1977-133046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2427-154697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154697.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.950449071313422,
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-      "start_frame": 255207,
-      "duration_frames": 79504,
-      "overlap": false,
-      "utterance_id": "2256-137628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137628.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.610903379096687,
-      "end_time": 27.326693054513317,
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-      "start_frame": 345774,
-      "duration_frames": 91452,
-      "overlap": false,
-      "utterance_id": "2427-154671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154671.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 57846
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.91274687473941,
-      "end_time": 32.0,
-      "duration": 4.087253125260592,
-      "start_frame": 446603,
-      "duration_frames": 65396,
-      "overlap": false,
-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2427/laugh/0037.wav",
-      "duration": 1.14,
-      "start_time": 8.782948896460159,
-      "speaker_id": "2427"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2427/laugh/0113.wav",
-      "duration": 1.26,
-      "start_time": 22.768084839337465,
-      "speaker_id": "2427"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2256/laugh/0115.wav",
-      "duration": 0.62414847319162,
-      "start_time": 27.122075673270295,
-      "speaker_id": "2256"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2256/cough/0087.wav",
-      "duration": 0.4529738234555829,
-      "start_time": 30.569094146350924,
-      "speaker_id": "2256"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012371.json b/conversations/conv_012371.json
deleted file mode 100644
index e42f4c318627672ee856b2b7f39eac320d6b5b82..0000000000000000000000000000000000000000
--- a/conversations/conv_012371.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.623039562818533,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1121-176698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1121-176698.flac |",
-      "real_speaker_id": "1121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.904729592473801,
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-      "overlap": false,
-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.008334529824797,
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-      "overlap": false,
-      "utterance_id": "7423-89169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89169.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.10562447127832,
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-      "duration_frames": 96347,
-      "overlap": false,
-      "utterance_id": "1121-135824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1121-135824.flac |",
-      "real_speaker_id": "1121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.661022237689288,
-      "end_time": 30.031740072471795,
-      "duration": 5.370717834782508,
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-      "duration_frames": 85931,
-      "overlap": true,
-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 93392
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.309051988876757,
-      "end_time": 31.623039562818533,
-      "duration": 0.3139875739417768,
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-      "duration_frames": 5023,
-      "overlap": true,
-      "utterance_id": "7423-89169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89169.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 85146
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7423/laugh/0102.wav",
-      "duration": 0.6655935464596012,
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-}
\ No newline at end of file
diff --git a/conversations/conv_012376.json b/conversations/conv_012376.json
deleted file mode 100644
index b641039efbdadc1c6b7dbadeca99689210dcf8ce..0000000000000000000000000000000000000000
--- a/conversations/conv_012376.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.822680031490382,
-      "duration": 6.822680031490382,
-      "start_frame": 0,
-      "duration_frames": 109162,
-      "overlap": false,
-      "utterance_id": "6368-230929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-230929.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.519643476649621,
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-      "duration": 5.197348941481828,
-      "start_frame": 120314,
-      "duration_frames": 83157,
-      "overlap": false,
-      "utterance_id": "7995-276908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-276908.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.117814567822467,
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-      "start_frame": 209885,
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-      "utterance_id": "6368-230929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-230929.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 109162
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "413-22436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22436.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.02821381779745,
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-      "duration": 5.97178618220255,
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-      "utterance_id": "7995-276907",
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-      "real_speaker_id": "7995",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7995/laugh/0027.wav",
-      "duration": 1.28,
-      "start_time": 6.167499290383309,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/413/laugh/0016.wav",
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-      "speaker_id": "413"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012383.json b/conversations/conv_012383.json
deleted file mode 100644
index 9f798377b11a16673b0a5d37b64586252c5aa9d4..0000000000000000000000000000000000000000
--- a/conversations/conv_012383.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.657255618700189,
-      "duration": 5.657255618700189,
-      "start_frame": 0,
-      "duration_frames": 90516,
-      "overlap": false,
-      "utterance_id": "4969-58757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-58757.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.181849907362568,
-      "end_time": 11.820943216726597,
-      "duration": 5.63909330936403,
-      "start_frame": 98909,
-      "duration_frames": 90225,
-      "overlap": false,
-      "utterance_id": "6209-34599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34599.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.938749369413284,
-      "end_time": 16.125572443010228,
-      "duration": 4.186823073596945,
-      "start_frame": 191019,
-      "duration_frames": 66989,
-      "overlap": false,
-      "utterance_id": "4969-73975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73975.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.41772430021334,
-      "end_time": 21.740673445435174,
-      "duration": 5.322949145221835,
-      "start_frame": 262683,
-      "duration_frames": 85167,
-      "overlap": false,
-      "utterance_id": "323-126408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.211938156754066,
-      "end_time": 26.29354174770895,
-      "duration": 4.0816035909548845,
-      "start_frame": 355391,
-      "duration_frames": 65305,
-      "overlap": false,
-      "utterance_id": "6209-34601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34601.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.622353685821196,
-      "end_time": 32.0,
-      "duration": 4.377646314178804,
-      "start_frame": 441957,
-      "duration_frames": 70042,
-      "overlap": false,
-      "utterance_id": "323-126408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 85167
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 10.344505616228851
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 27.758948088628422
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
-      "duration": 0.5341496598639456,
-      "start_time": 15.187178430842511
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/cough/0112.wav",
-      "duration": 1.135723247833998,
-      "start_time": 14.507082316991482,
-      "speaker_id": "4969"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/323/laugh/0073.wav",
-      "duration": 1.4801278459470137,
-      "start_time": 14.84112612603769,
-      "speaker_id": "323"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/323/cough/0015.wav",
-      "duration": 1.005683408063402,
-      "start_time": 15.380066319062179,
-      "speaker_id": "323"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/323/cough/0077.wav",
-      "duration": 0.5248532037322624,
-      "start_time": 26.963392115778813,
-      "speaker_id": "323"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012388.json b/conversations/conv_012388.json
deleted file mode 100644
index 62e5ddbfd8903cf4b68a65779a4dc2570fc067ef..0000000000000000000000000000000000000000
--- a/conversations/conv_012388.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.193175946215994,
-      "duration": 4.193175946215994,
-      "start_frame": 0,
-      "duration_frames": 67090,
-      "overlap": false,
-      "utterance_id": "8190-284433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284433.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.7323297439075653,
-      "end_time": 10.722995627009968,
-      "duration": 6.990665883102403,
-      "start_frame": 59717,
-      "duration_frames": 111850,
-      "overlap": true,
-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.97193033557976,
-      "end_time": 15.92788210974306,
-      "duration": 3.9559517741632995,
-      "start_frame": 191550,
-      "duration_frames": 63295,
-      "overlap": false,
-      "utterance_id": "8190-284434",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284434.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.88087342811066,
-      "end_time": 23.44856230084112,
-      "duration": 6.567688872730461,
-      "start_frame": 270093,
-      "duration_frames": 105083,
-      "overlap": false,
-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 111850
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.464329005569866,
-      "end_time": 30.8886219894708,
-      "duration": 6.424292983900932,
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-      "duration_frames": 102788,
-      "overlap": false,
-      "utterance_id": "6807-106437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-106437.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.008617878069675,
-      "end_time": 32.0,
-      "duration": 0.9913821219303252,
-      "start_frame": 496137,
-      "duration_frames": 15862,
-      "overlap": false,
-      "utterance_id": "6807-106437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-106437.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 102788
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 13.79679172049517,
-      "start_time": 0.6243825480179543
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
-      "duration": 0.41732426303854875,
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
-      "start_time": 13.58200265399561
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_012395.json b/conversations/conv_012395.json
deleted file mode 100644
index 2d0df5ae412e87d1f4b77a5ba49891bd6066feda..0000000000000000000000000000000000000000
--- a/conversations/conv_012395.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4180101302286516,
-      "duration": 3.4180101302286516,
-      "start_frame": 0,
-      "duration_frames": 54688,
-      "overlap": false,
-      "utterance_id": "1680-142282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1680-142282.flac |",
-      "real_speaker_id": "1680",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.471187061819918,
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-      "overlap": false,
-      "utterance_id": "5333-5083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5333-5083.flac |",
-      "real_speaker_id": "5333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.419391587969901,
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-      "overlap": false,
-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.755539553155613,
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-      "duration_frames": 91870,
-      "overlap": false,
-      "utterance_id": "1680-142282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1680-142282.flac |",
-      "real_speaker_id": "1680",
-      "position_frames": 54688
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.126736325525243,
-      "end_time": 27.78947669061064,
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-      "duration_frames": 90603,
-      "overlap": false,
-      "utterance_id": "5333-37092",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5333-37092.flac |",
-      "real_speaker_id": "5333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.134519393627723,
-      "end_time": 32.0,
-      "duration": 2.8654806063722766,
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-      "duration_frames": 45847,
-      "overlap": false,
-      "utterance_id": "1680-142282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1680-142282.flac |",
-      "real_speaker_id": "1680",
-      "position_frames": 146558
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4290/laugh/0040.wav",
-      "duration": 0.8791679510228456,
-      "start_time": 15.554645398016675,
-      "speaker_id": "4290"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1680/laugh/0103.wav",
-      "duration": 0.7731798942234644,
-      "start_time": 31.058405245572377,
-      "speaker_id": "1680"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012399.json b/conversations/conv_012399.json
deleted file mode 100644
index 41f59f4eebed3c4a392bbf582ec53fc7a31b406b..0000000000000000000000000000000000000000
--- a/conversations/conv_012399.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.614483729439453,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.943611790836638,
-      "duration": 5.943611790836638,
-      "start_frame": 0,
-      "duration_frames": 95097,
-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.977287797580216,
-      "end_time": 11.369940787204015,
-      "duration": 4.3926529896238,
-      "start_frame": 111636,
-      "duration_frames": 70282,
-      "overlap": false,
-      "utterance_id": "1633-141580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-141580.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.004579602765999,
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-      "duration_frames": 93276,
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-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 95097
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.521605587574342,
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-      "utterance_id": "1633-150458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-150458.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.79901409430912,
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-      "start_frame": 364784,
-      "duration_frames": 76354,
-      "overlap": true,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 188373
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.9876327140397,
-      "end_time": 31.614483729439453,
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-      "overlap": true,
-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
-      "duration": 11.450680272108844,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.8132922781317644,
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/19/cough/0068.wav",
-      "duration": 0.82,
-      "start_time": 28.988883671546485,
-      "speaker_id": "19"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012403.json b/conversations/conv_012403.json
deleted file mode 100644
index fa9eba7092b7e45c48def7a832a0b3a62f3640e0..0000000000000000000000000000000000000000
--- a/conversations/conv_012403.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_012408.json b/conversations/conv_012408.json
deleted file mode 100644
index 0a10a0da80032adae6e42b5ccbabac8c3764b841..0000000000000000000000000000000000000000
--- a/conversations/conv_012408.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_012415.json b/conversations/conv_012415.json
deleted file mode 100644
index 489aa80e72b2fa3a52a77e2aa7acb2cc3228e81e..0000000000000000000000000000000000000000
--- a/conversations/conv_012415.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_012419.json b/conversations/conv_012419.json
deleted file mode 100644
index 40ca278e77e86a1d2611f1ffe08c37996f11b43b..0000000000000000000000000000000000000000
--- a/conversations/conv_012419.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-      "speaker_id": "3927"
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-      "speaker_id": "6846"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_012423.json b/conversations/conv_012423.json
deleted file mode 100644
index 7439e01d13a91daa68752654912a84a9e86f3bb1..0000000000000000000000000000000000000000
--- a/conversations/conv_012423.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "726-124445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/726-124445.flac |",
-      "real_speaker_id": "726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.094176639600953,
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-      "utterance_id": "6753-76098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76098.flac |",
-      "real_speaker_id": "6753",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.91392226731846,
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-      "utterance_id": "726-124445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/726-124445.flac |",
-      "real_speaker_id": "726",
-      "position_frames": 83921
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.017686367315097,
-      "end_time": 23.53823275182882,
-      "duration": 6.520546384513722,
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-      "duration_frames": 104328,
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.440432967374427,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 104328
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.758935536527595,
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-      "duration_frames": 44142,
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-      "utterance_id": "726-124445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/726-124445.flac |",
-      "real_speaker_id": "726",
-      "position_frames": 176352
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Alarm_bell_ringing",
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-      "start_time": 8.804062310628927
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_012434.json b/conversations/conv_012434.json
deleted file mode 100644
index 0677b19bbe8a2437ad61df57410eef334bf77883..0000000000000000000000000000000000000000
--- a/conversations/conv_012434.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 0
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-      "start_time": 10.483588710017145,
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-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 59326
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.830692708607526,
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-      "overlap": false,
-      "utterance_id": "1898-145715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145715.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.301456491412193,
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-      "utterance_id": "5565-40589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 84325
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.430131799963966,
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-      "duration": 2.5698682000360336,
-      "start_frame": 470882,
-      "duration_frames": 41117,
-      "overlap": false,
-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 162495
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/408/laugh/0093.wav",
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-      "start_time": 3.9773594238453183,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/408/laugh/0046.wav",
-      "duration": 1.2,
-      "start_time": 29.95429806714834,
-      "speaker_id": "408"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012435.json b/conversations/conv_012435.json
deleted file mode 100644
index b6d66f0f54cdfaf2bbae4a4375d426576dfb9517..0000000000000000000000000000000000000000
--- a/conversations/conv_012435.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3955-181687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-181687.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "4480-44312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.312187293567975,
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-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.28534297183363,
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-      "overlap": true,
-      "utterance_id": "4480-8371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-8371.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.74508022445167,
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-      "utterance_id": "3955-181692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-181692.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "start_frame": 467290,
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-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 72456
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_0.wav",
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-      "event_class": "laugh",
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-    },
-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 23.582324647706006,
-      "speaker_id": "3955"
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-    {
-      "event_class": "cough",
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-      "duration": 1.28,
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-}
\ No newline at end of file
diff --git a/conversations/conv_012439.json b/conversations/conv_012439.json
deleted file mode 100644
index eeded720b96ed2ed56ac801439599cdc5c498f52..0000000000000000000000000000000000000000
--- a/conversations/conv_012439.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.862530099349186,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2319-138631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138631.flac |",
-      "real_speaker_id": "2319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.160599949268792,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-246946.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "2319-138631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138631.flac |",
-      "real_speaker_id": "2319",
-      "position_frames": 93055
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.420340943555676,
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-      "overlap": true,
-      "utterance_id": "7800-283478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283478.flac |",
-      "real_speaker_id": "7800",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2021-235244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235244.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.50337823934901,
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-      "utterance_id": "2319-138631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138631.flac |",
-      "real_speaker_id": "2319",
-      "position_frames": 153538
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.12,
-      "start_time": 21.38284835086275,
-      "speaker_id": "2021"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012442.json b/conversations/conv_012442.json
deleted file mode 100644
index c5cdfdffff9d52c124cf5338c642e3276a54af34..0000000000000000000000000000000000000000
--- a/conversations/conv_012442.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_012449.json b/conversations/conv_012449.json
deleted file mode 100644
index dd6776f58c601864140ad5db1d9c16c7730cd7b0..0000000000000000000000000000000000000000
--- a/conversations/conv_012449.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145701.flac |",
-      "real_speaker_id": "1859",
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-      "real_speaker_id": "688",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145700.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_012454.json b/conversations/conv_012454.json
deleted file mode 100644
index 90c0fb46e1d7db9cafb4313046e7cded03f56deb..0000000000000000000000000000000000000000
--- a/conversations/conv_012454.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_012458.json b/conversations/conv_012458.json
deleted file mode 100644
index 248a5d98e3c6a7a9dd902876802f8de555157bdc..0000000000000000000000000000000000000000
--- a/conversations/conv_012458.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "start_time": 20.07726988395982,
-      "speaker_id": "1579"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012462.json b/conversations/conv_012462.json
deleted file mode 100644
index 96313ee5400532d98b5851e57fffc6d1a0cc4570..0000000000000000000000000000000000000000
--- a/conversations/conv_012462.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.0795385813442255,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121740.flac |",
-      "real_speaker_id": "517",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 13.993598894490976,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-296083.flac |",
-      "real_speaker_id": "6670",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121739.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 25.409228244525384,
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-      "duration": 4.976895967591712,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 58801
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.238145221967766,
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012463.json b/conversations/conv_012463.json
deleted file mode 100644
index 5778bc1b310eb403a4ec54444e67e2147ff6c5e3..0000000000000000000000000000000000000000
--- a/conversations/conv_012463.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
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-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156720.flac |",
-      "real_speaker_id": "2531",
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-      "segment_id": "seg0002",
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-      "start_time": 11.60139533277129,
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-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2380-152158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 178991
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012473.json b/conversations/conv_012473.json
deleted file mode 100644
index 95cdbfacf37bff4a2d17fd0fb035b2d1e6441bda..0000000000000000000000000000000000000000
--- a/conversations/conv_012473.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12529.flac |",
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-      "real_speaker_id": "6009",
-      "position_frames": 64306
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_012474.json b/conversations/conv_012474.json
deleted file mode 100644
index dc7dc901be85beee2697cd2d1a3c30959b235d98..0000000000000000000000000000000000000000
--- a/conversations/conv_012474.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.726685174152692,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 165886
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 240488
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "duration": 1.6,
-      "start_time": 26.147342396767822,
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-      "event_class": "cough",
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-      "duration": 1.36,
-      "start_time": 24.488022574447882,
-      "speaker_id": "7518"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012478.json b/conversations/conv_012478.json
deleted file mode 100644
index 30218daf033138496131eea5fb47c8b068bc8bfd..0000000000000000000000000000000000000000
--- a/conversations/conv_012478.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6625-39680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-39680.flac |",
-      "real_speaker_id": "6625",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-26685.flac |",
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-      "utterance_id": "6625-39674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-39674.flac |",
-      "real_speaker_id": "6625",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.706677032210386,
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-      "overlap": false,
-      "utterance_id": "6625-39674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-39674.flac |",
-      "real_speaker_id": "6625",
-      "position_frames": 88964
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.25773918461058,
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-      "utterance_id": "6497-234106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234106.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012481.json b/conversations/conv_012481.json
deleted file mode 100644
index 758f842f375d320056ad33d47def765aa47994af..0000000000000000000000000000000000000000
--- a/conversations/conv_012481.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6308-68359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
-      "real_speaker_id": "6308",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-285137.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146845.flac |",
-      "real_speaker_id": "1685",
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-      "segment_id": "seg0003",
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-      "utterance_id": "6308-68358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68358.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-285173.flac |",
-      "real_speaker_id": "8459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.5138774764225,
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-      "overlap": false,
-      "utterance_id": "1685-146845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146845.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 63184
-    }
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "event_class": "Dog",
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-      "speaker_id": "6308"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1685/cough/0022.wav",
-      "duration": 0.6740620542694269,
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-      "speaker_id": "1685"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.94,
-      "start_time": 23.011198983373088,
-      "speaker_id": "8459"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012497.json b/conversations/conv_012497.json
deleted file mode 100644
index a28fdc3bd312a29030129b366d4df82b52887dda..0000000000000000000000000000000000000000
--- a/conversations/conv_012497.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7898-273041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7898-273041.flac |",
-      "real_speaker_id": "7898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.025104709758227,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121674.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.915549037946002,
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-      "start_frame": 174648,
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-      "utterance_id": "7898-273040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7898-273040.flac |",
-      "real_speaker_id": "7898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.401922538594459,
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-      "duration_frames": 72476,
-      "overlap": true,
-      "utterance_id": "365-84340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
-      "real_speaker_id": "365",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121674.flac |",
-      "real_speaker_id": "100",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7898-273041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7898-273041.flac |",
-      "real_speaker_id": "7898",
-      "position_frames": 62926
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.182956339221846,
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-      "duration": 1.817043660778154,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 72476
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/laugh/0080.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/laugh/0082.wav",
-      "duration": 1.12,
-      "start_time": 19.569494822629448,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7898/laugh/0092.wav",
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-      "start_time": 25.176645165601975,
-      "speaker_id": "7898"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012507.json b/conversations/conv_012507.json
deleted file mode 100644
index cbd2dc0f5c0bf527f76d3e64f84c8f5d374347ee..0000000000000000000000000000000000000000
--- a/conversations/conv_012507.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.3100828320203393,
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-      "utterance_id": "1054-143005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
-      "real_speaker_id": "1054",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "6947",
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-    {
-      "segment_id": "seg0002",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-52158.flac |",
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-      "speaker_id": "5906"
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\ No newline at end of file
diff --git a/conversations/conv_012511.json b/conversations/conv_012511.json
deleted file mode 100644
index f5710e24326bb32558cd4ce5132c8f36c0eb8734..0000000000000000000000000000000000000000
--- a/conversations/conv_012511.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3796-16816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16816.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "8006-112592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 17.619869068876092,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 81133
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8006-112593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112593.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_012526.json b/conversations/conv_012526.json
deleted file mode 100644
index d2b10842066bd891871dc6542000861a5d696036..0000000000000000000000000000000000000000
--- a/conversations/conv_012526.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "851",
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-    {
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-      "utterance_id": "7739-8592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-8592.flac |",
-      "real_speaker_id": "7739",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112056.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_012527.json b/conversations/conv_012527.json
deleted file mode 100644
index 89f1aa74454fff452e1140e50ca355df4fb16ce6..0000000000000000000000000000000000000000
--- a/conversations/conv_012527.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3698-41990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-41990.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137154.flac |",
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-      "real_speaker_id": "984",
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-    {
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-      "utterance_id": "3698-256231",
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-      "real_speaker_id": "3698",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012531.json b/conversations/conv_012531.json
deleted file mode 100644
index c68458b2b794bec3a67c104f6359315ce7639489..0000000000000000000000000000000000000000
--- a/conversations/conv_012531.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.957602943751015,
-      "duration": 5.957602943751015,
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-      "utterance_id": "83-3054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
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-      "real_speaker_id": "2060",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170440.flac |",
-      "real_speaker_id": "2827",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
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-      "duration": 1.32,
-      "start_time": 29.885925835848386,
-      "speaker_id": "2827"
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\ No newline at end of file
diff --git a/conversations/conv_012536.json b/conversations/conv_012536.json
deleted file mode 100644
index e063ae4b52fe5e6c9f07aa96b76935e14579ec48..0000000000000000000000000000000000000000
--- a/conversations/conv_012536.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.372455819962955,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 0
-    },
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-      "utterance_id": "688-46588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-46588.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.540701916120508,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.175754919637562,
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-      "utterance_id": "688-15446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-15446.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_012546.json b/conversations/conv_012546.json
deleted file mode 100644
index d14335ba53eb2903d7ccdbd855282d28f4fa0f09..0000000000000000000000000000000000000000
--- a/conversations/conv_012546.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4545-9166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 97125
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-    {
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-      "utterance_id": "1845-145083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145083.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.300324644557232,
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-      "duration_frames": 66325,
-      "overlap": false,
-      "utterance_id": "4545-9166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 166160
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.51528292762638,
-      "end_time": 32.0,
-      "duration": 2.48471707237362,
-      "start_frame": 472244,
-      "duration_frames": 39755,
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-      "utterance_id": "1845-145083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145083.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 96210
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 4.194883249240001,
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-    {
-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4545/cough/0146.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012550.json b/conversations/conv_012550.json
deleted file mode 100644
index dc17a305367cbe2a4ed6e990c5b222cca3978fd9..0000000000000000000000000000000000000000
--- a/conversations/conv_012550.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "duration": 4.989848632989472,
-      "start_frame": 0,
-      "duration_frames": 79837,
-      "overlap": false,
-      "utterance_id": "5093-29101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-29101.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.429995785911433,
-      "end_time": 12.07116653534974,
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-      "duration_frames": 106258,
-      "overlap": false,
-      "utterance_id": "2137-155944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-155944.flac |",
-      "real_speaker_id": "2137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2137-155944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-155944.flac |",
-      "real_speaker_id": "2137",
-      "position_frames": 106258
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "5093-26496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-26496.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-155944.flac |",
-      "real_speaker_id": "2137",
-      "position_frames": 183797
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.64622343295718,
-      "end_time": 32.0,
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-      "start_frame": 458339,
-      "duration_frames": 53660,
-      "overlap": false,
-      "utterance_id": "5093-39749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-39749.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5093/laugh/0059.wav",
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-      "start_time": 0,
-      "speaker_id": "5093"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2137/laugh/0073.wav",
-      "duration": 0.8987464840907524,
-      "start_time": 14.554144038168614,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2137/cough/0055.wav",
-      "duration": 1.08,
-      "start_time": 13.287212734669374,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2137/laugh/0080.wav",
-      "duration": 0.7924764346525319,
-      "start_time": 28.449517465098143,
-      "speaker_id": "2137"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012566.json b/conversations/conv_012566.json
deleted file mode 100644
index 7875d4eae03f7bf577e35fd72161c61df0d90d4d..0000000000000000000000000000000000000000
--- a/conversations/conv_012566.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_012570.json b/conversations/conv_012570.json
deleted file mode 100644
index 080fb9f0a809acee2c47c987de82927fbd1fd9e2..0000000000000000000000000000000000000000
--- a/conversations/conv_012570.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3347",
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\ No newline at end of file
diff --git a/conversations/conv_012585.json b/conversations/conv_012585.json
deleted file mode 100644
index be2c28cc391efc173498b00852db3d9e52020489..0000000000000000000000000000000000000000
--- a/conversations/conv_012585.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_012589.json b/conversations/conv_012589.json
deleted file mode 100644
index 3ada94669c6d9de9f627f1788cc4e7495647b769..0000000000000000000000000000000000000000
--- a/conversations/conv_012589.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "duration": 0.2008390022675737,
-      "start_time": 20.823595184046297
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
-      "duration": 3.029102301457865,
-      "start_time": 25.582405258675546
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2812/laugh/0003.wav",
-      "duration": 1.14,
-      "start_time": 4.240491904476594,
-      "speaker_id": "2812"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2812/cough/0000.wav",
-      "duration": 0.6613517721630162,
-      "start_time": 0,
-      "speaker_id": "2812"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012593.json b/conversations/conv_012593.json
deleted file mode 100644
index 9caa7fbe35a461dfedae559b4c76c489f912595d..0000000000000000000000000000000000000000
--- a/conversations/conv_012593.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.477366398541413,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.682764972218986,
-      "duration": 6.682764972218986,
-      "start_frame": 0,
-      "duration_frames": 106924,
-      "overlap": false,
-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.993104871083932,
-      "end_time": 13.757978527484083,
-      "duration": 5.764873656400151,
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-      "duration_frames": 92237,
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-      "utterance_id": "4310-14908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.033356525169577,
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-      "duration": 3.3834898121210135,
-      "start_frame": 224533,
-      "duration_frames": 54135,
-      "overlap": false,
-      "utterance_id": "265-122594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-122594.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.674843209237668,
-      "end_time": 22.34964825871738,
-      "duration": 4.674805049479712,
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-      "duration_frames": 74796,
-      "overlap": false,
-      "utterance_id": "4310-14900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.623141409059095,
-      "end_time": 25.812581343976504,
-      "duration": 3.18943993491741,
-      "start_frame": 361970,
-      "duration_frames": 51031,
-      "overlap": false,
-      "utterance_id": "265-136853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-136853.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.97932585907625,
-      "end_time": 31.477366398541413,
-      "duration": 5.498040539465164,
-      "start_frame": 415669,
-      "duration_frames": 87968,
-      "overlap": false,
-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
-      "position_frames": 106924
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 25.74705215419501,
-      "start_time": 0.13513732400936462
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
-      "duration": 0.837891156462585,
-      "start_time": 7.7646340060497945
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
-      "duration": 4.858109281097409,
-      "start_time": 1.2294125657177408
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/265/laugh/0023.wav",
-      "duration": 1.3676818081654973,
-      "start_time": 17.687846920351646,
-      "speaker_id": "265"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4310/laugh/0041.wav",
-      "duration": 0.9628614223768899,
-      "start_time": 16.550917804279948,
-      "speaker_id": "4310"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4310/cough/0056.wav",
-      "duration": 0.6352852775198363,
-      "start_time": 16.88194097496557,
-      "speaker_id": "4310"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/265/laugh/0025.wav",
-      "duration": 1.32,
-      "start_time": 22.989100779438377,
-      "speaker_id": "265"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012602.json b/conversations/conv_012602.json
deleted file mode 100644
index c62d21f363e90a38b06b53de911cd2af9ca8ae95..0000000000000000000000000000000000000000
--- a/conversations/conv_012602.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.4987032529999045,
-      "duration": 6.4987032529999045,
-      "start_frame": 0,
-      "duration_frames": 103979,
-      "overlap": false,
-      "utterance_id": "7433-89646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89646.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.7365968104394405,
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-      "overlap": false,
-      "utterance_id": "7433-89656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89656.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.842138353805268,
-      "end_time": 18.16180905774117,
-      "duration": 5.319670703935901,
-      "start_frame": 205474,
-      "duration_frames": 85114,
-      "overlap": true,
-      "utterance_id": "8590-258292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258292.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.804083636367643,
-      "end_time": 24.399450899747357,
-      "duration": 5.595367263379716,
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-      "overlap": false,
-      "utterance_id": "7433-89656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89656.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 93538
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.70903775930355,
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-      "duration": 6.400683383310289,
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-      "duration_frames": 102410,
-      "overlap": false,
-      "utterance_id": "8590-258290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258290.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.48124289310342,
-      "end_time": 32.0,
-      "duration": 0.5187571068965795,
-      "start_frame": 503699,
-      "duration_frames": 8300,
-      "overlap": false,
-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-      "start_time": 7.347715656460979
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_1.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7433/laugh/0040.wav",
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-      "start_time": 12.656987879235533,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7433/cough/0131.wav",
-      "duration": 1.2,
-      "start_time": 17.567897269387824,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/728/laugh/0012.wav",
-      "duration": 1.0346171595413713,
-      "start_time": 30.965382840458627,
-      "speaker_id": "728"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012614.json b/conversations/conv_012614.json
deleted file mode 100644
index 9287d08ced5aede2d8a017febbe23d3354077a5b..0000000000000000000000000000000000000000
--- a/conversations/conv_012614.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3227-24788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24788.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.508723663719494,
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-      "utterance_id": "5022-29405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29405.flac |",
-      "real_speaker_id": "5022",
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-      "utterance_id": "1708-142417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142417.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.090874412937044,
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-      "overlap": true,
-      "utterance_id": "3227-24784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.653700522011896,
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-      "overlap": false,
-      "utterance_id": "1708-142415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142415.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.28578492327548,
-      "end_time": 32.0,
-      "duration": 3.7142150767245212,
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-      "duration_frames": 59427,
-      "overlap": false,
-      "utterance_id": "3227-24784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 54137
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3227/laugh/0087.wav",
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-      "start_time": 0,
-      "speaker_id": "3227"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3227/cough/0075.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5022/cough/0087.wav",
-      "duration": 0.3209568391306368,
-      "start_time": 6.0254332009729,
-      "speaker_id": "5022"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012618.json b/conversations/conv_012618.json
deleted file mode 100644
index e3368c74e1911d10716065c5d814eb2f3ab3a38c..0000000000000000000000000000000000000000
--- a/conversations/conv_012618.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.37880369958649,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.268843058511399,
-      "duration": 4.268843058511399,
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-      "utterance_id": "1544-140055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-140055.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.679149628521828,
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-      "utterance_id": "44-207",
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-      "real_speaker_id": "44",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1544-41167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-41167.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-207.flac |",
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-      "utterance_id": "1544-121402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-121402.flac |",
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-      "speaker_id": "1544"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012622.json b/conversations/conv_012622.json
deleted file mode 100644
index d11e15464236b5782a9936bd006b491333ae5a4c..0000000000000000000000000000000000000000
--- a/conversations/conv_012622.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.417867970716764,
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-      "utterance_id": "1200-135043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135043.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.36924970824435,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135068.flac |",
-      "real_speaker_id": "1200",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-27683.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.965174782344917,
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-      "overlap": false,
-      "utterance_id": "1200-135067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135067.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.9577640370994,
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-      "utterance_id": "4910-27683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-27683.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 81477
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.750015750536747,
-      "end_time": 32.0,
-      "duration": 3.249984249463253,
-      "start_frame": 460000,
-      "duration_frames": 51999,
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-      "utterance_id": "1200-135068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135068.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 81746
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "start_time": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_012625.json b/conversations/conv_012625.json
deleted file mode 100644
index 323c315244dbaecf70681025142fc5756ce7519a..0000000000000000000000000000000000000000
--- a/conversations/conv_012625.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6346-60781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6346-60781.flac |",
-      "real_speaker_id": "6346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.700407255145237,
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-      "real_speaker_id": "923",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-119253.flac |",
-      "real_speaker_id": "231",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-119253.flac |",
-      "real_speaker_id": "231",
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-      "utterance_id": "923-132306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132306.flac |",
-      "real_speaker_id": "923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6346-60781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6346-60781.flac |",
-      "real_speaker_id": "6346",
-      "position_frames": 82161
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/231/cough/0045.wav",
-      "duration": 0.762970260505443,
-      "start_time": 19.981704783843064,
-      "speaker_id": "231"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012633.json b/conversations/conv_012633.json
deleted file mode 100644
index 29d1bde9d8fade8079ccf50c606f40a8fc0d568a..0000000000000000000000000000000000000000
--- a/conversations/conv_012633.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8791-291101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "8791",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-123366.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "8791",
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-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "background_events": [
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_012634.json b/conversations/conv_012634.json
deleted file mode 100644
index 94926205e5a31b986295782576e99cc74a48f2c3..0000000000000000000000000000000000000000
--- a/conversations/conv_012634.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6846-76681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
-      "real_speaker_id": "6846",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_012638.json b/conversations/conv_012638.json
deleted file mode 100644
index 1ac9ce23228a4cef71de177b90cb8a628f5e0d11..0000000000000000000000000000000000000000
--- a/conversations/conv_012638.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-355.flac |",
-      "real_speaker_id": "66",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-355.flac |",
-      "real_speaker_id": "66",
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-      "start_time": 21.804511879593754,
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-      "real_speaker_id": "66",
-      "position_frames": 190861
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "8432",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_012643.json b/conversations/conv_012643.json
deleted file mode 100644
index 5ae6501161edbab0ff7fb296d056d137874ca062..0000000000000000000000000000000000000000
--- a/conversations/conv_012643.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
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-      "real_speaker_id": "4693",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_012655.json b/conversations/conv_012655.json
deleted file mode 100644
index ebde49e9f76928ac0aea49b7d18677dabd4f244b..0000000000000000000000000000000000000000
--- a/conversations/conv_012655.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "3244",
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_012658.json b/conversations/conv_012658.json
deleted file mode 100644
index c13a5d8cd2a1a032a94caed7126b0805228ca88d..0000000000000000000000000000000000000000
--- a/conversations/conv_012658.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "6676",
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-    {
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-      "overlap": false,
-      "utterance_id": "6676-71414",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-71414.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6965/laugh/0052.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "6965"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6965/cough/0071.wav",
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-      "start_time": 8.844163692346488,
-      "speaker_id": "6965"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012659.json b/conversations/conv_012659.json
deleted file mode 100644
index 5135de6abe16cbbf91d2f738b7bff4de14d3df21..0000000000000000000000000000000000000000
--- a/conversations/conv_012659.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.638842685449887,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7177348995052535,
-      "duration": 3.7177348995052535,
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-      "overlap": false,
-      "utterance_id": "253-126865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-126865.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.482924174837081,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274348.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
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-    {
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-      "start_time": 8.442481543049903,
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-      "utterance_id": "8095-274346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274346.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.693136371342945,
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-      "utterance_id": "253-124400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-124400.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.64978494979657,
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-      "duration_frames": 76959,
-      "overlap": true,
-      "utterance_id": "5405-19220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5405-19220.flac |",
-      "real_speaker_id": "5405",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.182089787182402,
-      "end_time": 31.638842685449887,
-      "duration": 5.456752898267486,
-      "start_frame": 418913,
-      "duration_frames": 87308,
-      "overlap": false,
-      "utterance_id": "253-126865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-126865.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 59483
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "speaker_id": "253"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012663.json b/conversations/conv_012663.json
deleted file mode 100644
index 4062e28ab183e853bc3b2fb307c040f92b519e6a..0000000000000000000000000000000000000000
--- a/conversations/conv_012663.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.25110166678762,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3245-6194",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-6194.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.859926977970651,
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-      "utterance_id": "7561-258992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "3245-169642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-169642.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.691347207775344,
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-      "utterance_id": "3557-8342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8342.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "7561-258992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 50412
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-      "duration": 1.46,
-      "start_time": 13.138230603337465,
-      "speaker_id": "3245"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012664.json b/conversations/conv_012664.json
deleted file mode 100644
index f4b7b52ae39611527620c6181c11e2e878cda5b4..0000000000000000000000000000000000000000
--- a/conversations/conv_012664.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "409-124990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/409-124990.flac |",
-      "real_speaker_id": "409",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2437-153219",
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-      "real_speaker_id": "2437",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2943-171000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171000.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171001.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.6489152130171,
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-      "utterance_id": "2437-153219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-153219.flac |",
-      "real_speaker_id": "2437",
-      "position_frames": 75505
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "409",
-      "position_frames": 57708
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.793161314464058,
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-      "real_speaker_id": "409",
-      "position_frames": 150333
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2437/laugh/0041.wav",
-      "duration": 1.44,
-      "start_time": 23.194923038858377,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/409/cough/0027.wav",
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-      "start_time": 30.694484903266943,
-      "speaker_id": "409"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012672.json b/conversations/conv_012672.json
deleted file mode 100644
index 9ea7d9c193522f3828567076590aafa7edac1aff..0000000000000000000000000000000000000000
--- a/conversations/conv_012672.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3192-4909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4909.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2985",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "segment_id": "seg0005",
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-      "duration": 1.52,
-      "start_time": 0,
-      "speaker_id": "3192"
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-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 28.242819345847426,
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-      "speaker_id": "2985"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012674.json b/conversations/conv_012674.json
deleted file mode 100644
index f2c3d1778449403daf63c9d75e329f08b75b575e..0000000000000000000000000000000000000000
--- a/conversations/conv_012674.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125127.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125127.flac |",
-      "real_speaker_id": "501",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-150468.flac |",
-      "real_speaker_id": "705",
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-      "speaker_id": 0,
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-      "position_frames": 136480
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_012675.json b/conversations/conv_012675.json
deleted file mode 100644
index 90568b3237c354fab6ffdd64f8c8166cd168c799..0000000000000000000000000000000000000000
--- a/conversations/conv_012675.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.252930646862815,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_012679.json b/conversations/conv_012679.json
deleted file mode 100644
index 5f3b9257f60c8450fcba8f1fec7d2ba8eadf8394..0000000000000000000000000000000000000000
--- a/conversations/conv_012679.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-57667.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-57667.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 84335
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-      "speaker_id": 1,
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "6499"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012680.json b/conversations/conv_012680.json
deleted file mode 100644
index f1a4d3a1f7ece6856a9525ffcdebd1eafb35d596..0000000000000000000000000000000000000000
--- a/conversations/conv_012680.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "25-88353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-88353.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_012696.json b/conversations/conv_012696.json
deleted file mode 100644
index b015529b3a2950f8c55ecbd465f7b87d18f8041f..0000000000000000000000000000000000000000
--- a/conversations/conv_012696.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_012706.json b/conversations/conv_012706.json
deleted file mode 100644
index b1a40122e043bae695d1df2a6fca05f33749c160..0000000000000000000000000000000000000000
--- a/conversations/conv_012706.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234106.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
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-      "position_frames": 0
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_012710.json b/conversations/conv_012710.json
deleted file mode 100644
index 57c04548956b7e17f1834a01db18d4b76488f8c0..0000000000000000000000000000000000000000
--- a/conversations/conv_012710.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8410-278217.flac |",
-      "real_speaker_id": "8410",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_012721.json b/conversations/conv_012721.json
deleted file mode 100644
index bfa71f2e86faac8b5090c66ef06056d37d3e0660..0000000000000000000000000000000000000000
--- a/conversations/conv_012721.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "utterance_id": "3835-178030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178030.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4945-29091.flac |",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "duration": 1.24,
-      "start_time": 30.42397808994735,
-      "speaker_id": "3911"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012726.json b/conversations/conv_012726.json
deleted file mode 100644
index 59fc0f1d38707ede2309f9927f9d4d58d3c70c0b..0000000000000000000000000000000000000000
--- a/conversations/conv_012726.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.731840920605052,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 1,
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-      "utterance_id": "7189-77777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-77777.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "7189",
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-      "real_speaker_id": "7859",
-      "position_frames": 85373
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_012730.json b/conversations/conv_012730.json
deleted file mode 100644
index eabbc2e85317cdf39175e5b7397ea5585392c996..0000000000000000000000000000000000000000
--- a/conversations/conv_012730.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-}
\ No newline at end of file
diff --git a/conversations/conv_012731.json b/conversations/conv_012731.json
deleted file mode 100644
index df8b5b485798048c0ef18af64f3c65b1a9ca13c3..0000000000000000000000000000000000000000
--- a/conversations/conv_012731.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 9.383800200711434,
-      "speaker_id": "8422"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012737.json b/conversations/conv_012737.json
deleted file mode 100644
index 2a70501d72bd29e5aba85f1091cc3e25b6b0bf63..0000000000000000000000000000000000000000
--- a/conversations/conv_012737.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3698-41990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-41990.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
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-      "overlap": false,
-      "utterance_id": "3698-41990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-41990.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 55461
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.863150595655227,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-256231.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.176676939127276,
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-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.487536217553878,
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-      "duration": 4.5124637824461225,
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-      "overlap": false,
-      "utterance_id": "3698-256231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-256231.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 74913
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "2361"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012747.json b/conversations/conv_012747.json
deleted file mode 100644
index 09cf84f1db2e1a96c147efc921eacea170a11ab2..0000000000000000000000000000000000000000
--- a/conversations/conv_012747.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301694.flac |",
-      "real_speaker_id": "8113",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301693.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-292560.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8664-292560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-292560.flac |",
-      "real_speaker_id": "8664",
-      "position_frames": 75685
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1647-142742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-142742.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "start_time": 29.358871814026667,
-      "speaker_id": "8664"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012751.json b/conversations/conv_012751.json
deleted file mode 100644
index f15fb8d1c0c9ccbe9c75eca64aab5a432e8daa63..0000000000000000000000000000000000000000
--- a/conversations/conv_012751.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-    {
-      "segment_id": "seg0004",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012760.json b/conversations/conv_012760.json
deleted file mode 100644
index 0647d45b0a1af0dee78740bdcc5c50848abc0b6b..0000000000000000000000000000000000000000
--- a/conversations/conv_012760.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.91706577200691,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_012767.json b/conversations/conv_012767.json
deleted file mode 100644
index 8b9127a4e5486c6d68493befcb5006c1bb40aa16..0000000000000000000000000000000000000000
--- a/conversations/conv_012767.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.778357590970742,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
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-      "speaker_id": 1,
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-      "utterance_id": "157-126796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-126796.flac |",
-      "real_speaker_id": "157",
-      "position_frames": 99959
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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\ No newline at end of file
diff --git a/conversations/conv_012771.json b/conversations/conv_012771.json
deleted file mode 100644
index 88b788ba8d2fd97f9ef61dc1719f2454cbc8adfe..0000000000000000000000000000000000000000
--- a/conversations/conv_012771.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012776.json b/conversations/conv_012776.json
deleted file mode 100644
index fde2fb17444eb4f9b4aee888809f342c798cf3c8..0000000000000000000000000000000000000000
--- a/conversations/conv_012776.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_012784.json b/conversations/conv_012784.json
deleted file mode 100644
index ebf02db171a224d49cac5a72a165f017ea24898d..0000000000000000000000000000000000000000
--- a/conversations/conv_012784.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "duration": 1.0,
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-      "speaker_id": "3947"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012788.json b/conversations/conv_012788.json
deleted file mode 100644
index e4933b182369ae9f50962017ee1c06d0f844b859..0000000000000000000000000000000000000000
--- a/conversations/conv_012788.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.26594156110997,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167606.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "3486",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-5330.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.919823394540874,
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-      "utterance_id": "1066-103481",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-103481.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.865812060897202,
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-      "duration": 3.369329675231797,
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-      "overlap": false,
-      "utterance_id": "3214-167602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167602.flac |",
-      "real_speaker_id": "3214",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_012792.json b/conversations/conv_012792.json
deleted file mode 100644
index eb0e7a9acc56fde88a0daaa1cda1aa77b24d2727..0000000000000000000000000000000000000000
--- a/conversations/conv_012792.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54683.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54685.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6758-72288.flac |",
-      "real_speaker_id": "6758",
-      "position_frames": 66997
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6145-54683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54683.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 99617
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.06001004567461,
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-      "utterance_id": "2339-181101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2339-181101.flac |",
-      "real_speaker_id": "2339",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012799.json b/conversations/conv_012799.json
deleted file mode 100644
index 0c4c381d93f7698809967b44f74ab29b9c81611b..0000000000000000000000000000000000000000
--- a/conversations/conv_012799.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126265.flac |",
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-      "real_speaker_id": "1535",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.467228489835392,
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-    {
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-      "utterance_id": "1535-141642",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012803.json b/conversations/conv_012803.json
deleted file mode 100644
index 774d7ba11213f55f784cd29973fe8afda510cc72..0000000000000000000000000000000000000000
--- a/conversations/conv_012803.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.127561830444026,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "5076-287393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-287393.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-287393.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5684-46243.flac |",
-      "real_speaker_id": "5684",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_012808.json b/conversations/conv_012808.json
deleted file mode 100644
index 14e758b16d15c96964864c88e8da8b73dae996d3..0000000000000000000000000000000000000000
--- a/conversations/conv_012808.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.339739550689504,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "5012-31097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31097.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
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-      "utterance_id": "2436-2477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2477.flac |",
-      "real_speaker_id": "2436",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2481.flac |",
-      "real_speaker_id": "2436",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.884481224728418,
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-      "utterance_id": "8302-281317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281317.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.872766344925516,
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-      "utterance_id": "5012-80192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "speaker_id": "5012"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_012815.json b/conversations/conv_012815.json
deleted file mode 100644
index f9eef6e8556382704b747cf158a0632b7905dd1a..0000000000000000000000000000000000000000
--- a/conversations/conv_012815.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.334640088486793,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-158751.flac |",
-      "real_speaker_id": "3346",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-76853.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
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-      "position_frames": 0
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-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 25.388334838093805,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 99215
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
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-  "foreground_events": [
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-      "speaker_id": "3346"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/laugh/0043.wav",
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-      "start_time": 28.671539557547916,
-      "speaker_id": "4078"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012819.json b/conversations/conv_012819.json
deleted file mode 100644
index f3ce6c9448ce8f2d1758035f4e0077b39d0fcbea..0000000000000000000000000000000000000000
--- a/conversations/conv_012819.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "4734-220951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220951.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.755027237406988,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220952.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.197085681951863,
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-      "overlap": true,
-      "utterance_id": "3657-78622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-78622.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.64360741223285,
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-      "real_speaker_id": "4734",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88749.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
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-    {
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-      "utterance_id": "7143-88743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88743.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.14,
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-      "speaker_id": "7143"
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-      "speaker_id": "7143"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012823.json b/conversations/conv_012823.json
deleted file mode 100644
index b636bceaf49aa8fe84493034bdba0f76b3372e66..0000000000000000000000000000000000000000
--- a/conversations/conv_012823.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.907999163310027,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100454.flac |",
-      "real_speaker_id": "7507",
-      "position_frames": 0
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_012835.json b/conversations/conv_012835.json
deleted file mode 100644
index 3a5b823337bbf6b047e59ce8be6a9ba046047e11..0000000000000000000000000000000000000000
--- a/conversations/conv_012835.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129583.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 5.2720914206733225,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-54612.flac |",
-      "real_speaker_id": "5949",
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-      "utterance_id": "2531-156724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156724.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129582.flac |",
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-      "speaker_id": 0,
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-      "utterance_id": "2531-156724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156724.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 77427
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-  ],
-  "background_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_012839.json b/conversations/conv_012839.json
deleted file mode 100644
index 583cc65f730b9da5e6fa111955ff969b091f89b0..0000000000000000000000000000000000000000
--- a/conversations/conv_012839.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.543258475089946,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_012842.json b/conversations/conv_012842.json
deleted file mode 100644
index 21e962e5bb5c8556aa7043bfcfa92f467bc3b5e7..0000000000000000000000000000000000000000
--- a/conversations/conv_012842.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_012849.json b/conversations/conv_012849.json
deleted file mode 100644
index 94f99bc61b0c2720fb5ea450c1aef01049102738..0000000000000000000000000000000000000000
--- a/conversations/conv_012849.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_012854.json b/conversations/conv_012854.json
deleted file mode 100644
index 9b0a9ca859815d9c953bf3a7563428dc902d1312..0000000000000000000000000000000000000000
--- a/conversations/conv_012854.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8142-3966",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-3966.flac |",
-      "real_speaker_id": "8142",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 7.262044554353194,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166570.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3467-166572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166572.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 79478
-    }
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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\ No newline at end of file
diff --git a/conversations/conv_012858.json b/conversations/conv_012858.json
deleted file mode 100644
index 196bd5b636be1e1053939e64e075300238c5a57c..0000000000000000000000000000000000000000
--- a/conversations/conv_012858.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "position_frames": 99763
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012862.json b/conversations/conv_012862.json
deleted file mode 100644
index 6b21bf01332d65b19e8d3322fb999de8b2d0329a..0000000000000000000000000000000000000000
--- a/conversations/conv_012862.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "233",
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-  "foreground_events": [
-    {
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-      "start_time": 30.68,
-      "speaker_id": "8468"
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-}
\ No newline at end of file
diff --git a/conversations/conv_012865.json b/conversations/conv_012865.json
deleted file mode 100644
index 03b7946ed4c948107f15e76d467f39d82b3a873a..0000000000000000000000000000000000000000
--- a/conversations/conv_012865.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.552122695046766,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1536-137608.flac |",
-      "real_speaker_id": "1536",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.314395862681373,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6111-59777.flac |",
-      "real_speaker_id": "6111",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1536-137608.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_012874.json b/conversations/conv_012874.json
deleted file mode 100644
index bb886a07f808600a4780cb1bb55bbd0cbd96d077..0000000000000000000000000000000000000000
--- a/conversations/conv_012874.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.73572740969399,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.0284401404876995,
-      "end_time": 8.669927688608475,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134315.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 72197
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-121907.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 182147
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.294374768813913,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-      "speaker_id": "1088"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012875.json b/conversations/conv_012875.json
deleted file mode 100644
index 5a970950e3389d9d1c0f2cca136d740be81cb295..0000000000000000000000000000000000000000
--- a/conversations/conv_012875.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121392.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-122805.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121392.flac |",
-      "real_speaker_id": "274",
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-      "real_speaker_id": "6705",
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-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "start_time": 14.251770860211199,
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-      "speaker_id": "277"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012878.json b/conversations/conv_012878.json
deleted file mode 100644
index 3377fcfc0e0a8545448ff5f6ed7dd88b0c6086b9..0000000000000000000000000000000000000000
--- a/conversations/conv_012878.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132272.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
-      "duration": 0.6519047619047619,
-      "start_time": 12.168499828235058
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8580/cough/0065.wav",
-      "duration": 0.5841353356797636,
-      "start_time": 11.709675035274937,
-      "speaker_id": "8580"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6308/laugh/0087.wav",
-      "duration": 1.32,
-      "start_time": 21.40093005600049,
-      "speaker_id": "6308"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012881.json b/conversations/conv_012881.json
deleted file mode 100644
index 46340c423e83059e5d0d45bde74378451cf04da8..0000000000000000000000000000000000000000
--- a/conversations/conv_012881.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.65604525785492,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
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-      "start_time": 0.0,
-      "end_time": 5.411865812874228,
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-      "duration_frames": 86589,
-      "overlap": false,
-      "utterance_id": "6794-73984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6794-73984.flac |",
-      "real_speaker_id": "6794",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.229490032780582,
-      "end_time": 9.230903588859707,
-      "duration": 3.0014135560791244,
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-      "utterance_id": "2499-156153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156153.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.467961300650979,
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-      "duration_frames": 102755,
-      "overlap": false,
-      "utterance_id": "6794-73984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6794-73984.flac |",
-      "real_speaker_id": "6794",
-      "position_frames": 86589
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.225558593578977,
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-      "utterance_id": "3112-9554",
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-      "real_speaker_id": "3112",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.6726725109612,
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-      "utterance_id": "2499-156154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156154.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.262540699650668,
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-      "duration": 3.3935045582042527,
-      "start_frame": 452200,
-      "duration_frames": 54296,
-      "overlap": true,
-      "utterance_id": "6794-73984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6794-73984.flac |",
-      "real_speaker_id": "6794",
-      "position_frames": 189344
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.681247759830971,
-      "start_time": 21.447919182740684
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_012897.json b/conversations/conv_012897.json
deleted file mode 100644
index 012fb7c045ac00d75208d4c5acb74440a6bb6896..0000000000000000000000000000000000000000
--- a/conversations/conv_012897.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.527899592785186,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72205.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.21169836055106,
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-      "overlap": false,
-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.847131973199527,
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-      "duration": 5.133623354614888,
-      "start_frame": 301554,
-      "duration_frames": 82137,
-      "overlap": false,
-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 89654
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.563898506351936,
-      "end_time": 31.527899592785186,
-      "duration": 6.96400108643325,
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-      "duration_frames": 111424,
-      "overlap": false,
-      "utterance_id": "7140-72205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72205.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 66688
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_4.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "7140"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012907.json b/conversations/conv_012907.json
deleted file mode 100644
index bbb7d1a91152340f66604a5ca5425575aa42c55b..0000000000000000000000000000000000000000
--- a/conversations/conv_012907.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
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-      "real_speaker_id": "5217",
-      "position_frames": 110349
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 108552
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.83842929901185,
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-      "duration": 4.687755017162585,
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-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 176643
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 1.5005902173317764,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 181173
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012911.json b/conversations/conv_012911.json
deleted file mode 100644
index 5034c73e161cdbd669a86e2b4408854818bbf197..0000000000000000000000000000000000000000
--- a/conversations/conv_012911.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "1224-121064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1224-121064.flac |",
-      "real_speaker_id": "1224",
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-    {
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-      "start_time": 4.668567237255351,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155508.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
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-    {
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-      "utterance_id": "1224-121064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1224-121064.flac |",
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-    {
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2488",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_012920.json b/conversations/conv_012920.json
deleted file mode 100644
index 2d67d195bf23e094f7aa002231af673948232824..0000000000000000000000000000000000000000
--- a/conversations/conv_012920.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_012927.json b/conversations/conv_012927.json
deleted file mode 100644
index 8960b3411c883782f5451f66381cb2bda97167b6..0000000000000000000000000000000000000000
--- a/conversations/conv_012927.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_012930.json b/conversations/conv_012930.json
deleted file mode 100644
index 9e3ca3671c3de0f218c1ad79450a204bc018c452..0000000000000000000000000000000000000000
--- a/conversations/conv_012930.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_012931.json b/conversations/conv_012931.json
deleted file mode 100644
index 36551a8cd3ccfca65da0a751912d8568c9b2f119..0000000000000000000000000000000000000000
--- a/conversations/conv_012931.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_012946.json b/conversations/conv_012946.json
deleted file mode 100644
index ed72949d5262ba36d689aaa201d732bbad740cb5..0000000000000000000000000000000000000000
--- a/conversations/conv_012946.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "real_speaker_id": "4915",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89165.flac |",
-      "real_speaker_id": "6902",
-      "position_frames": 63864
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "4915",
-      "position_frames": 65545
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_012950.json b/conversations/conv_012950.json
deleted file mode 100644
index 12bca5e7a033852f47ef6e680fd466d9114fc214..0000000000000000000000000000000000000000
--- a/conversations/conv_012950.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6883-79964.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "1463",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "6883",
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-}
\ No newline at end of file
diff --git a/conversations/conv_012966.json b/conversations/conv_012966.json
deleted file mode 100644
index 97ae5a8ed47c19e132250d05907ad7befe1d0b37..0000000000000000000000000000000000000000
--- a/conversations/conv_012966.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_012970.json b/conversations/conv_012970.json
deleted file mode 100644
index 0978803ab150fcf5d9d6b265989f99e6dc741359..0000000000000000000000000000000000000000
--- a/conversations/conv_012970.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6743/cough/0027.wav",
-      "duration": 0.5091250100273372,
-      "start_time": 8.613072873682905,
-      "speaker_id": "6743"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7245/cough/0075.wav",
-      "duration": 0.6777078165609083,
-      "start_time": 18.989748088380182,
-      "speaker_id": "7245"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6743/laugh/0004.wav",
-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "6743"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012985.json b/conversations/conv_012985.json
deleted file mode 100644
index 7ac5bb0934254a1b781e8086e1724c37df320dd3..0000000000000000000000000000000000000000
--- a/conversations/conv_012985.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.2580722139233256,
-      "duration": 3.2580722139233256,
-      "start_frame": 0,
-      "duration_frames": 52129,
-      "overlap": false,
-      "utterance_id": "7939-120330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120330.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.4328609773494314,
-      "end_time": 9.864180834676873,
-      "duration": 6.431319857327441,
-      "start_frame": 54925,
-      "duration_frames": 102901,
-      "overlap": false,
-      "utterance_id": "2089-148996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-148996.flac |",
-      "real_speaker_id": "2089",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.637588017853298,
-      "end_time": 15.05245647458495,
-      "duration": 4.414868456731653,
-      "start_frame": 170201,
-      "duration_frames": 70637,
-      "overlap": false,
-      "utterance_id": "7939-120330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120330.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 52129
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.168782953233736,
-      "end_time": 19.641968267759207,
-      "duration": 4.473185314525472,
-      "start_frame": 242700,
-      "duration_frames": 71570,
-      "overlap": false,
-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.50580342751349,
-      "end_time": 24.652425243486356,
-      "duration": 4.146621815972864,
-      "start_frame": 328092,
-      "duration_frames": 66345,
-      "overlap": false,
-      "utterance_id": "7939-120318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120318.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.969746821085817,
-      "end_time": 28.566258218909358,
-      "duration": 3.5965113978235403,
-      "start_frame": 399515,
-      "duration_frames": 57544,
-      "overlap": false,
-      "utterance_id": "2089-133059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-133059.flac |",
-      "real_speaker_id": "2089",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.879907953268834,
-      "end_time": 32.0,
-      "duration": 3.120092046731166,
-      "start_frame": 462078,
-      "duration_frames": 49921,
-      "overlap": false,
-      "utterance_id": "6370-26876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-26876.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
-      "duration": 1.7417913832199547,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7939/laugh/0010.wav",
-      "duration": 1.44,
-      "start_time": 0,
-      "speaker_id": "7939"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7939/cough/0084.wav",
-      "duration": 1.1176239676130864,
-      "start_time": 2.136331769955023,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6370/cough/0136.wav",
-      "duration": 0.6855722052411573,
-      "start_time": 19.785916918078517,
-      "speaker_id": "6370"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2089/laugh/0055.wav",
-      "duration": 1.08,
-      "start_time": 25.05269339897069,
-      "speaker_id": "2089"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6370/laugh/0006.wav",
-      "duration": 0.8,
-      "start_time": 31.2,
-      "speaker_id": "6370"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012989.json b/conversations/conv_012989.json
deleted file mode 100644
index e239e07f2238a7cce3ab72bd68a27b150174fe35..0000000000000000000000000000000000000000
--- a/conversations/conv_012989.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4799-25950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25950.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.255040923147922,
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-      "duration": 4.7473669324276795,
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-      "utterance_id": "1430-139231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-139231.flac |",
-      "real_speaker_id": "1430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.519326564107645,
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-      "duration": 6.098285751113345,
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-      "duration_frames": 97572,
-      "overlap": false,
-      "utterance_id": "4799-25949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.510907534330585,
-      "end_time": 22.70675838539823,
-      "duration": 4.1958508510676475,
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-      "duration_frames": 67133,
-      "overlap": false,
-      "utterance_id": "7277-106404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106404.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.50346385873776,
-      "end_time": 29.032048843780814,
-      "duration": 5.528584985043054,
-      "start_frame": 376055,
-      "duration_frames": 88457,
-      "overlap": false,
-      "utterance_id": "7277-106404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106404.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 67133
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.518261309639996,
-      "end_time": 32.0,
-      "duration": 2.481738690360004,
-      "start_frame": 472292,
-      "duration_frames": 39707,
-      "overlap": false,
-      "utterance_id": "1430-1061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-1061.flac |",
-      "real_speaker_id": "1430",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 15.526283555052238,
-      "start_time": 12.892441299537186
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
-      "duration": 0.23598639455782314,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4799/laugh/0048.wav",
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-      "start_time": 5.6374589443535355,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7277/laugh/0095.wav",
-      "duration": 1.4,
-      "start_time": 21.96847019964125,
-      "speaker_id": "7277"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7277/cough/0126.wav",
-      "duration": 0.4576464412351288,
-      "start_time": 23.03782315774698,
-      "speaker_id": "7277"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_012993.json b/conversations/conv_012993.json
deleted file mode 100644
index 06eb2b30ead1c825b04fa75c304cecbf837b5594..0000000000000000000000000000000000000000
--- a/conversations/conv_012993.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.424624477671462,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.10216625541477,
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-      "duration_frames": 64620,
-      "overlap": true,
-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 68772
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.678198980171594,
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-      "duration": 6.365617395576201,
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-      "duration_frames": 101849,
-      "overlap": false,
-      "utterance_id": "6590-64283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64283.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.39396286737591,
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-      "duration": 5.890518118972416,
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-      "duration_frames": 94248,
-      "overlap": false,
-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 133392
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.6144691625912,
-      "end_time": 32.0,
-      "duration": 0.3855308374088011,
-      "start_frame": 505831,
-      "duration_frames": 6168,
-      "overlap": false,
-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3272/laugh/0065.wav",
-      "duration": 1.12,
-      "start_time": 0,
-      "speaker_id": "3272"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3272/cough/0055.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3272/laugh/0093.wav",
-      "duration": 1.2,
-      "start_time": 10.677624619438546,
-      "speaker_id": "3272"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013005.json b/conversations/conv_013005.json
deleted file mode 100644
index 0fe9298921dcb66cb4b59a3f531952e53f92f180..0000000000000000000000000000000000000000
--- a/conversations/conv_013005.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.883243225936827,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.407320349532153,
-      "duration": 5.407320349532153,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1460-138290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.610722410790261,
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-      "utterance_id": "188-141613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-141613.flac |",
-      "real_speaker_id": "188",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1460-138289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138289.flac |",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138289.flac |",
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-  "foreground_events": [
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-      "speaker_id": "1460"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013009.json b/conversations/conv_013009.json
deleted file mode 100644
index c4086324c3371966944f47e6da1134d9285cb257..0000000000000000000000000000000000000000
--- a/conversations/conv_013009.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.3597344374951597,
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-      "utterance_id": "4535-279849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279849.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.277419166489583,
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-      "real_speaker_id": "2361",
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "3436-172171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.659504260533582,
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-      "duration_frames": 51100,
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-      "utterance_id": "3436-172171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 81074
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.361372066828455,
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-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 73510
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.8017417873699,
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-      "duration": 4.293071401664045,
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-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 167551
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-165622.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Dog",
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-  ],
-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_013012.json b/conversations/conv_013012.json
deleted file mode 100644
index 5d7a604a74078106c870395f2d55402fede3b731..0000000000000000000000000000000000000000
--- a/conversations/conv_013012.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7297-275885.flac |",
-      "real_speaker_id": "7297",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
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-    {
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-      "utterance_id": "7297-92812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7297-92812.flac |",
-      "real_speaker_id": "7297",
-      "position_frames": 0
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-      "utterance_id": "152-132799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-132799.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-    {
-      "event_class": "laugh",
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-    {
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-      "speaker_id": "6963"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013013.json b/conversations/conv_013013.json
deleted file mode 100644
index 9b6ff66a7d8a70200359669f7a584dbb61972afe..0000000000000000000000000000000000000000
--- a/conversations/conv_013013.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.78124232646399,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1646-121409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121409.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.5358615311173,
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-      "utterance_id": "5007-31609",
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-      "real_speaker_id": "5007",
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-      "utterance_id": "1646-121406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121406.flac |",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "5007-31603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31603.flac |",
-      "real_speaker_id": "5007",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "5007",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1646/laugh/0009.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013022.json b/conversations/conv_013022.json
deleted file mode 100644
index 3e088c4c8e5abb49f0679cc9f96b5504c7011594..0000000000000000000000000000000000000000
--- a/conversations/conv_013022.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.294253091813793,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.080079092716437,
-      "duration": 6.080079092716437,
-      "start_frame": 0,
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-      "utterance_id": "192-128344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128344.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128345.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "192-128344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128344.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 97281
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.606239035089057,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-175415.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-      "start_time": 0,
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3969/laugh/0025.wav",
-      "duration": 0.5486764174307568,
-      "start_time": 31.451323582569245,
-      "speaker_id": "3969"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013025.json b/conversations/conv_013025.json
deleted file mode 100644
index 93c4b654a3bc9e5899597fd0b36c11511fbc281d..0000000000000000000000000000000000000000
--- a/conversations/conv_013025.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.563772547829246,
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-      "overlap": false,
-      "utterance_id": "4598-2503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4598-2503.flac |",
-      "real_speaker_id": "4598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.238482599715628,
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-      "utterance_id": "5652-19215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-19215.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "4598-6176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4598-6176.flac |",
-      "real_speaker_id": "4598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.31137291723007,
-      "end_time": 22.432550000895603,
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-      "overlap": false,
-      "utterance_id": "5652-39938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-39938.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.187848928136336,
-      "end_time": 26.88492596352016,
-      "duration": 3.697077035383825,
-      "start_frame": 371005,
-      "duration_frames": 59153,
-      "overlap": false,
-      "utterance_id": "4598-2503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4598-2503.flac |",
-      "real_speaker_id": "4598",
-      "position_frames": 89020
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.086071770141828,
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-      "duration": 3.913928229858172,
-      "start_frame": 449377,
-      "duration_frames": 62622,
-      "overlap": false,
-      "utterance_id": "4598-6176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4598-6176.flac |",
-      "real_speaker_id": "4598",
-      "position_frames": 87553
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4598/laugh/0058.wav",
-      "duration": 1.16,
-      "start_time": 26.829931824123836,
-      "speaker_id": "4598"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013029.json b/conversations/conv_013029.json
deleted file mode 100644
index 4b5fac5ddeba233543407e9c4ae5339f24adc1f3..0000000000000000000000000000000000000000
--- a/conversations/conv_013029.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5248-34500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34500.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.7237837092011863,
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-      "overlap": false,
-      "utterance_id": "8590-258292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258292.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "5248-34498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34498.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.832161352134388,
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-      "utterance_id": "8590-258290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258290.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.609885762253587,
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-      "utterance_id": "198-126831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-126831.flac |",
-      "real_speaker_id": "198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.104769980537498,
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-      "duration": 4.8952300194625025,
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-      "utterance_id": "8590-258292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258292.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 101156
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5248/cough/0013.wav",
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-    {
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-      "duration": 1.08,
-      "start_time": 7.90676443346025,
-      "speaker_id": "8590"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8590/cough/0105.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5248/cough/0151.wav",
-      "duration": 0.84,
-      "start_time": 9.360816769747045,
-      "speaker_id": "5248"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013033.json b/conversations/conv_013033.json
deleted file mode 100644
index 47281694d68afb878d5b22567fcf447501d697e9..0000000000000000000000000000000000000000
--- a/conversations/conv_013033.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.472747025802297,
-      "duration": 5.472747025802297,
-      "start_frame": 0,
-      "duration_frames": 87563,
-      "overlap": false,
-      "utterance_id": "2053-138901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138901.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.002442311641877,
-      "end_time": 11.330282174650003,
-      "duration": 5.327839863008126,
-      "start_frame": 96039,
-      "duration_frames": 85245,
-      "overlap": false,
-      "utterance_id": "7926-254948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.742340251599524,
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-      "duration": 5.8731229833431655,
-      "start_frame": 187877,
-      "duration_frames": 93969,
-      "overlap": false,
-      "utterance_id": "2053-138901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138901.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 87563
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.148167503158735,
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-      "duration": 6.886187958966129,
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-      "duration_frames": 110179,
-      "overlap": true,
-      "utterance_id": "7926-254949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254949.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.27379736676271,
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-      "utterance_id": "2053-138901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138901.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 181532
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 2.301513546089968,
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-      "utterance_id": "255-121534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/255-121534.flac |",
-      "real_speaker_id": "255",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_1.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2053/laugh/0007.wav",
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-      "start_time": 3.7586879295200686,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7926/cough/0071.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2053/cough/0084.wav",
-      "duration": 0.7769939382754032,
-      "start_time": 17.782385848802225,
-      "speaker_id": "2053"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2053/laugh/0032.wav",
-      "duration": 0.791415191127004,
-      "start_time": 24.32648081800491,
-      "speaker_id": "2053"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/255/laugh/0073.wav",
-      "duration": 1.44,
-      "start_time": 30.2119404048034,
-      "speaker_id": "255"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/255/cough/0085.wav",
-      "duration": 0.3202092728007125,
-      "start_time": 31.679790727199286,
-      "speaker_id": "255"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013034.json b/conversations/conv_013034.json
deleted file mode 100644
index ff03481bc51329787956d0406ced47af79733ddb..0000000000000000000000000000000000000000
--- a/conversations/conv_013034.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.162866356069099,
-      "duration": 5.162866356069099,
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-      "utterance_id": "1963-142776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1963-142776.flac |",
-      "real_speaker_id": "1963",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.384808299598686,
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-      "duration_frames": 60423,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1963-142393.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_013044.json b/conversations/conv_013044.json
deleted file mode 100644
index dcc9f0733aa3b91a5fd0f215fc872b461d85ff3c..0000000000000000000000000000000000000000
--- a/conversations/conv_013044.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
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-      "utterance_id": "445-123860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123860.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.479377480229807,
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-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 94045
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013048.json b/conversations/conv_013048.json
deleted file mode 100644
index ad0c186de3ab27f62cfaf20e94d129ce7504ae54..0000000000000000000000000000000000000000
--- a/conversations/conv_013048.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-70988.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
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-      "real_speaker_id": "6030",
-      "position_frames": 65678
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-    {
-      "segment_id": "seg0006",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013049.json b/conversations/conv_013049.json
deleted file mode 100644
index 9ac20f35308bfe6b2e2635509e687cc669a05341..0000000000000000000000000000000000000000
--- a/conversations/conv_013049.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-6379.flac |",
-      "real_speaker_id": "1578",
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-  "background_events": [
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013052.json b/conversations/conv_013052.json
deleted file mode 100644
index 7cca8057fe419c0136c3799c61089e1c8d3401be..0000000000000000000000000000000000000000
--- a/conversations/conv_013052.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
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\ No newline at end of file
diff --git a/conversations/conv_013063.json b/conversations/conv_013063.json
deleted file mode 100644
index e866e81fccaf49279ab37b248241bdaa51964533..0000000000000000000000000000000000000000
--- a/conversations/conv_013063.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_013064.json b/conversations/conv_013064.json
deleted file mode 100644
index 4c8673b80f7dac18342507bb1be9032f4e81f155..0000000000000000000000000000000000000000
--- a/conversations/conv_013064.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_013065.json b/conversations/conv_013065.json
deleted file mode 100644
index 4ab7d3bad28465df2591e1cf4d107430fc73ecc8..0000000000000000000000000000000000000000
--- a/conversations/conv_013065.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_013068.json b/conversations/conv_013068.json
deleted file mode 100644
index a1d1be3a7cee2a7be0bee540347e6eb0d4f103bc..0000000000000000000000000000000000000000
--- a/conversations/conv_013068.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.377882948958217,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4090-183987.flac |",
-      "real_speaker_id": "4090",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31603.flac |",
-      "real_speaker_id": "5007",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-82271.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 50641
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013072.json b/conversations/conv_013072.json
deleted file mode 100644
index 7c8d0bfe1cd888003fb27c245965d9eef57a168e..0000000000000000000000000000000000000000
--- a/conversations/conv_013072.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.477812525647266,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
-    },
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-      "start_time": 3.643039023428164,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-258283.flac |",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_013075.json b/conversations/conv_013075.json
deleted file mode 100644
index e73e5284df835f3994646099cbecf4dc31dab297..0000000000000000000000000000000000000000
--- a/conversations/conv_013075.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126320.flac |",
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-      "real_speaker_id": "711",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5460-24509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-24509.flac |",
-      "real_speaker_id": "5460",
-      "position_frames": 80128
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013087.json b/conversations/conv_013087.json
deleted file mode 100644
index 2b3b761e654205862cef8077412ff08020071628..0000000000000000000000000000000000000000
--- a/conversations/conv_013087.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1392-128240",
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-  "foreground_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1392/cough/0117.wav",
-      "duration": 1.3016129498251119,
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-      "speaker_id": "1392"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.68,
-      "start_time": 12.731610480971304,
-      "speaker_id": "3592"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2140/cough/0070.wav",
-      "duration": 1.399348116292093,
-      "start_time": 12.275407574820614,
-      "speaker_id": "2140"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013091.json b/conversations/conv_013091.json
deleted file mode 100644
index 8c42f23600b6ec852b7c0236e11b71eb1932db97..0000000000000000000000000000000000000000
--- a/conversations/conv_013091.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.381380190247828,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.218543018751093,
-      "duration": 6.218543018751093,
-      "start_frame": 0,
-      "duration_frames": 99496,
-      "overlap": false,
-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.968746186557082,
-      "end_time": 12.979501393991402,
-      "duration": 6.01075520743432,
-      "start_frame": 111499,
-      "duration_frames": 96172,
-      "overlap": false,
-      "utterance_id": "2930-163437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163437.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.822792575674473,
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-      "duration": 4.581119615097159,
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-      "duration_frames": 73297,
-      "overlap": false,
-      "utterance_id": "272-130227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130227.flac |",
-      "real_speaker_id": "272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.819113493215482,
-      "end_time": 22.896737319467228,
-      "duration": 4.077623826251746,
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-      "duration_frames": 65241,
-      "overlap": false,
-      "utterance_id": "1182-134981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134981.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.41129525745864,
-      "end_time": 28.469703252288557,
-      "duration": 5.058407994829918,
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-      "duration_frames": 80934,
-      "overlap": false,
-      "utterance_id": "2930-163437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163437.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 96172
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.353151472627097,
-      "end_time": 31.381380190247828,
-      "duration": 3.028228717620731,
-      "start_frame": 453650,
-      "duration_frames": 48451,
-      "overlap": true,
-      "utterance_id": "272-130227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130227.flac |",
-      "real_speaker_id": "272",
-      "position_frames": 73297
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 19.035735207597842
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
-      "duration": 0.9947845804988662,
-      "start_time": 14.520994115373815
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_13.wav",
-      "duration": 0.5375963718820862,
-      "start_time": 5.820681880689494
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/272/laugh/0068.wav",
-      "duration": 0.96,
-      "start_time": 16.597495475513522,
-      "speaker_id": "272"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/272/cough/0079.wav",
-      "duration": 1.132397141806025,
-      "start_time": 12.622193708164554,
-      "speaker_id": "272"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1182/cough/0015.wav",
-      "duration": 0.35494259571062237,
-      "start_time": 22.98979175163182,
-      "speaker_id": "1182"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/laugh/0110.wav",
-      "duration": 0.5216298901697518,
-      "start_time": 27.41334375292765,
-      "speaker_id": "2930"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/272/laugh/0033.wav",
-      "duration": 0.8415952274088538,
-      "start_time": 27.443637522674432,
-      "speaker_id": "272"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013101.json b/conversations/conv_013101.json
deleted file mode 100644
index e1f370b1be105c3f252b1ad749d7810fcb419fd4..0000000000000000000000000000000000000000
--- a/conversations/conv_013101.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.887968487464217,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.709385100499259,
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-      "overlap": false,
-      "utterance_id": "7561-258992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.561774200365412,
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-      "utterance_id": "5019-38670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-38670.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.108902589175582,
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-      "duration_frames": 66160,
-      "overlap": false,
-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.688403579559683,
-      "end_time": 20.177816964012827,
-      "duration": 3.4894133844531425,
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-      "overlap": false,
-      "utterance_id": "5019-44339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-44339.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.287996946895188,
-      "end_time": 26.49937195863864,
-      "duration": 6.211375011743451,
-      "start_frame": 324607,
-      "duration_frames": 99382,
-      "overlap": false,
-      "utterance_id": "7561-258992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 91350
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.670497334380883,
-      "end_time": 30.887968487464217,
-      "duration": 4.217471153083334,
-      "start_frame": 426727,
-      "duration_frames": 67479,
-      "overlap": false,
-      "utterance_id": "3816-11258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-11258.flac |",
-      "real_speaker_id": "3816",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/laugh/0029.wav",
-      "duration": 1.04,
-      "start_time": 2.621680388390507,
-      "speaker_id": "7561"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5019/cough/0112.wav",
-      "duration": 0.3979888243369562,
-      "start_time": 6.093937863597073,
-      "speaker_id": "5019"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/laugh/0027.wav",
-      "duration": 1.08,
-      "start_time": 18.99187634698869,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/cough/0019.wav",
-      "duration": 0.4866597192347477,
-      "start_time": 26.542473851128303,
-      "speaker_id": "7561"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013117.json b/conversations/conv_013117.json
deleted file mode 100644
index b795b86647b4ddc0f69af5a15481aaee21bcf063..0000000000000000000000000000000000000000
--- a/conversations/conv_013117.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2405-182390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-182390.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.057068477623489,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-112687.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2405-7360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-7360.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "6828",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2405-7360",
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-      "real_speaker_id": "2405",
-      "position_frames": 100743
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 1.4471766356025562,
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-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013121.json b/conversations/conv_013121.json
deleted file mode 100644
index 9dffa4b1e358f813eb7fed82272d90d5ad98c3bc..0000000000000000000000000000000000000000
--- a/conversations/conv_013121.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "4278-13269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-13269.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-283234.flac |",
-      "real_speaker_id": "8240",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.55613563553516,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 56087
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-283234.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 157077
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
-      "duration": 15.230769886039718,
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
-      "duration": 3.079200697347703,
-      "start_time": 10.821816236983738
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_013126.json b/conversations/conv_013126.json
deleted file mode 100644
index 6d157f56c0e7a1a0dede56643d62a00157390e72..0000000000000000000000000000000000000000
--- a/conversations/conv_013126.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.677964758794914,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.423289054471029,
-      "duration": 4.423289054471029,
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-      "duration_frames": 70772,
-      "overlap": false,
-      "utterance_id": "549-126410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.445998520146063,
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-      "duration": 4.0226810518164875,
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-      "overlap": true,
-      "utterance_id": "797-127182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.10333338173832,
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-      "duration": 5.476927830824932,
-      "start_frame": 145653,
-      "duration_frames": 87630,
-      "overlap": false,
-      "utterance_id": "7065-74598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74598.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.059039138082628,
-      "end_time": 19.663945039506217,
-      "duration": 4.604905901423587,
-      "start_frame": 240944,
-      "duration_frames": 73678,
-      "overlap": false,
-      "utterance_id": "797-127182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 64362
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.173255413627594,
-      "end_time": 24.893238217414392,
-      "duration": 4.719982803786799,
-      "start_frame": 322772,
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-      "overlap": false,
-      "utterance_id": "7065-74597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74597.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.282869241011756,
-      "end_time": 31.677964758794914,
-      "duration": 6.39509551778316,
-      "start_frame": 404525,
-      "duration_frames": 102321,
-      "overlap": false,
-      "utterance_id": "797-127183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127183.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-      "start_time": 1.021507721998585
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7065/cough/0107.wav",
-      "duration": 1.36,
-      "start_time": 24.910910878285655,
-      "speaker_id": "7065"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013130.json b/conversations/conv_013130.json
deleted file mode 100644
index 318e149d777908cbe6d89345ed7bcf4124e9d619..0000000000000000000000000000000000000000
--- a/conversations/conv_013130.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.259240480349831,
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-      "overlap": false,
-      "utterance_id": "3020-892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-892.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.601271342281188,
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-      "overlap": false,
-      "utterance_id": "1121-135824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1121-135824.flac |",
-      "real_speaker_id": "1121",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.290478035737056,
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-      "overlap": true,
-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.837458464912128,
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-      "overlap": false,
-      "utterance_id": "111-126277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126277.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.42727352752655,
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-      "duration": 4.910295969199166,
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-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 98652
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.39229011060676,
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-      "duration": 3.7851261239041714,
-      "start_frame": 438276,
-      "duration_frames": 60562,
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-      "utterance_id": "1121-132777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1121-132777.flac |",
-      "real_speaker_id": "1121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.505913971679554,
-      "end_time": 32.0,
-      "duration": 0.4940860283204458,
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-      "duration_frames": 7905,
-      "overlap": false,
-      "utterance_id": "111-129000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_9.wav",
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-    {
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-      "duration": 1.28,
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-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/111/cough/0050.wav",
-      "duration": 1.052493583072517,
-      "start_time": 30.94750641692748,
-      "speaker_id": "111"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013137.json b/conversations/conv_013137.json
deleted file mode 100644
index 45744d0f8e68c20c4bc6cbc7f50844315ffda6b6..0000000000000000000000000000000000000000
--- a/conversations/conv_013137.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.011306149441957,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1509-145742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1509-145742.flac |",
-      "real_speaker_id": "1509",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.725474526145895,
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-      "start_frame": 91607,
-      "duration_frames": 71600,
-      "overlap": false,
-      "utterance_id": "1474-172821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-172821.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.68025888214432,
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-      "start_frame": 170884,
-      "duration_frames": 96975,
-      "overlap": false,
-      "utterance_id": "1509-145742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1509-145742.flac |",
-      "real_speaker_id": "1509",
-      "position_frames": 87264
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.47830294249467,
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-      "overlap": false,
-      "utterance_id": "1474-128276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128276.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.12629537735185,
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-      "utterance_id": "6038-56778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 53056,
-      "overlap": true,
-      "utterance_id": "1509-145699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1509-145699.flac |",
-      "real_speaker_id": "1509",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_2.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6038/cough/0104.wav",
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-      "start_time": 25.610717470208897,
-      "speaker_id": "6038"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013140.json b/conversations/conv_013140.json
deleted file mode 100644
index 9311ea804bd8a4ab6405ef9e07c506883c137e67..0000000000000000000000000000000000000000
--- a/conversations/conv_013140.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.7226785021897655,
-      "duration": 6.7226785021897655,
-      "start_frame": 0,
-      "duration_frames": 107562,
-      "overlap": false,
-      "utterance_id": "2929-86777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-86777.flac |",
-      "real_speaker_id": "2929",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.804578132690227,
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-      "utterance_id": "2929-85685",
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-      "real_speaker_id": "2929",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "83-9960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-9960.flac |",
-      "real_speaker_id": "83",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.8208335588633,
-      "end_time": 32.0,
-      "duration": 4.179166441136701,
-      "start_frame": 445133,
-      "duration_frames": 66866,
-      "overlap": false,
-      "utterance_id": "83-9960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-9960.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 103252
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 25.20655328798186,
-      "start_time": 5.138102222522871
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-  ],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
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-      "start_time": 8.486554326003285
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 1.039081446582105,
-      "start_time": 15.56624896236908
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2929/cough/0040.wav",
-      "duration": 0.6707765735750989,
-      "start_time": 6.062552789745367,
-      "speaker_id": "2929"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2929/laugh/0108.wav",
-      "duration": 1.4,
-      "start_time": 21.009191089790306,
-      "speaker_id": "2929"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013156.json b/conversations/conv_013156.json
deleted file mode 100644
index 5c9fb0c5e2c9751c9c8dd3633fc6f6d80975009e..0000000000000000000000000000000000000000
--- a/conversations/conv_013156.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.191006042829372,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.329713061428581,
-      "duration": 6.329713061428581,
-      "start_frame": 0,
-      "duration_frames": 101275,
-      "overlap": false,
-      "utterance_id": "303-123500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123500.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.80433551317071,
-      "end_time": 13.10127009085978,
-      "duration": 6.296934577689069,
-      "start_frame": 108869,
-      "duration_frames": 100750,
-      "overlap": false,
-      "utterance_id": "5321-53046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-53046.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.819144753415976,
-      "end_time": 19.679025438668504,
-      "duration": 4.859880685252526,
-      "start_frame": 237106,
-      "duration_frames": 77758,
-      "overlap": false,
-      "utterance_id": "303-123507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123507.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.432884006475177,
-      "end_time": 25.590770215821166,
-      "duration": 6.157886209345991,
-      "start_frame": 310926,
-      "duration_frames": 98526,
-      "overlap": true,
-      "utterance_id": "5321-8590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-8590.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.91955765092598,
-      "end_time": 31.191006042829372,
-      "duration": 5.271448391903391,
-      "start_frame": 414712,
-      "duration_frames": 84343,
-      "overlap": true,
-      "utterance_id": "303-123500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123500.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 101275
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
-      "duration": 0.205578231292517,
-      "start_time": 17.728012663157465
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/303/laugh/0012.wav",
-      "duration": 0.7539239321975437,
-      "start_time": 0,
-      "speaker_id": "303"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/303/laugh/0034.wav",
-      "duration": 1.4705500416535024,
-      "start_time": 29.4177748335684,
-      "speaker_id": "303"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013160.json b/conversations/conv_013160.json
deleted file mode 100644
index 2f534d3a3f53b36680837853d552e9e610273000..0000000000000000000000000000000000000000
--- a/conversations/conv_013160.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.81021283439313,
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-      "utterance_id": "4295-39940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-39940.flac |",
-      "real_speaker_id": "4295",
-      "position_frames": 0
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 77139
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.937884704876886,
-      "end_time": 23.223348963848366,
-      "duration": 5.285464258971479,
-      "start_frame": 287006,
-      "duration_frames": 84567,
-      "overlap": false,
-      "utterance_id": "720-173579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/720-173579.flac |",
-      "real_speaker_id": "720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.781586214324488,
-      "end_time": 28.641437460486415,
-      "duration": 4.859851246161929,
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-      "duration_frames": 77757,
-      "overlap": false,
-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 164818
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.59400263189939,
-      "end_time": 32.0,
-      "duration": 2.4059973681006106,
-      "start_frame": 473504,
-      "duration_frames": 38495,
-      "overlap": false,
-      "utterance_id": "720-173582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/720-173582.flac |",
-      "real_speaker_id": "720",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4295/cough/0131.wav",
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-      "speaker_id": "4295"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013167.json b/conversations/conv_013167.json
deleted file mode 100644
index 571bb9eb75c6390e87a4514f74105ef5544f0ca0..0000000000000000000000000000000000000000
--- a/conversations/conv_013167.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.778336633083477,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "969-134373",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134373.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
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-      "real_speaker_id": "1094",
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-      "utterance_id": "969-134363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134363.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1094-129661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-129661.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "real_speaker_id": "969",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 75593,
-      "overlap": false,
-      "utterance_id": "111-129000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
-      "real_speaker_id": "111",
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013171.json b/conversations/conv_013171.json
deleted file mode 100644
index 0825cb455660dd02d571378cc248f5c350fe7f28..0000000000000000000000000000000000000000
--- a/conversations/conv_013171.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.839705741764438,
-      "duration": 5.839705741764438,
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-      "overlap": false,
-      "utterance_id": "1052-139308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1052-139308.flac |",
-      "real_speaker_id": "1052",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.366090053136713,
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-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8123-275216",
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-      "real_speaker_id": "8123",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "real_speaker_id": "1052",
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
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-  "foreground_events": [
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-      "start_time": 0,
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-      "duration": 1.24,
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-      "speaker_id": "4846"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_013176.json b/conversations/conv_013176.json
deleted file mode 100644
index 8713d1ad679b11d8b15ed5127e66e8c15aecf7dc..0000000000000000000000000000000000000000
--- a/conversations/conv_013176.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1748-1562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1562.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 4.644052482944987,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1560.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "1289-288043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288043.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.151408628333876,
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-      "utterance_id": "1289-288043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288043.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 77174
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 88173
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.917161585408245,
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-      "duration": 3.0828384145917553,
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-      "utterance_id": "1748-1560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1560.flac |",
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-  "background_events": [],
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_013183.json b/conversations/conv_013183.json
deleted file mode 100644
index 1615e8827c595df311909318077fb413d43da9a2..0000000000000000000000000000000000000000
--- a/conversations/conv_013183.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "544-121090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-130755.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.679766870560602,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 155651
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "826-131108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/826-131108.flac |",
-      "real_speaker_id": "826",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013188.json b/conversations/conv_013188.json
deleted file mode 100644
index b478f37317b7314b6d46ea8ea929f1ffe3481cb6..0000000000000000000000000000000000000000
--- a/conversations/conv_013188.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155973.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2582-155972",
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-      "real_speaker_id": "2582",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155972.flac |",
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-  "background_events": [
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013195.json b/conversations/conv_013195.json
deleted file mode 100644
index 59ff6beaf3a8e969ccedaacdca8c7950c9d5208f..0000000000000000000000000000000000000000
--- a/conversations/conv_013195.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.134288150963958,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7823-103122.flac |",
-      "real_speaker_id": "7823",
-      "position_frames": 103129
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3486-166446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.785652125507937,
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-      "real_speaker_id": "8346",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-      "event_class": "cough",
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-      "speaker_id": "8346"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013199.json b/conversations/conv_013199.json
deleted file mode 100644
index a7e26a64c3bbf80eca2875017c550d6eb6661679..0000000000000000000000000000000000000000
--- a/conversations/conv_013199.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.865253181766395,
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-      "utterance_id": "7264-92314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7264-92314.flac |",
-      "real_speaker_id": "7264",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.207819317638107,
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-      "overlap": false,
-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 86890
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.660948024314997,
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-      "duration_frames": 59637,
-      "overlap": false,
-      "utterance_id": "8776-270778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.96954451519411,
-      "end_time": 28.907825431790755,
-      "duration": 6.938280916596646,
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-      "utterance_id": "7264-92310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7264-92310.flac |",
-      "real_speaker_id": "7264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.464767968742773,
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-      "duration": 2.5352320312572267,
-      "start_frame": 471436,
-      "duration_frames": 40563,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 161636
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "speaker_id": "7264"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013204.json b/conversations/conv_013204.json
deleted file mode 100644
index c6ef9e8b0e0b41e095cebdb6ca108f1c5b3aea69..0000000000000000000000000000000000000000
--- a/conversations/conv_013204.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.575149849576043,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6488-66120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66120.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253244.flac |",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66121.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.6614839694114,
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-      "overlap": false,
-      "utterance_id": "6741-79958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-79958.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.81162467704692,
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-      "utterance_id": "483-125126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125126.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013208.json b/conversations/conv_013208.json
deleted file mode 100644
index 2f71769101e7ef3f125b012cecf4b7b57beecca2..0000000000000000000000000000000000000000
--- a/conversations/conv_013208.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1851-151817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-19665.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1851-148312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148312.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.454452896583074,
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-      "real_speaker_id": "8291",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/laugh/0070.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/cough/0031.wav",
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-      "start_time": 26.350301342593344,
-      "speaker_id": "8291"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013212.json b/conversations/conv_013212.json
deleted file mode 100644
index e05372f7c0266dc504d943953322d3dbd65af72c..0000000000000000000000000000000000000000
--- a/conversations/conv_013212.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4742-41609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127579.flac |",
-      "real_speaker_id": "637",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 57083
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "speaker_id": "4742"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013219.json b/conversations/conv_013219.json
deleted file mode 100644
index 27b94cb9700a6a6f63ee2c44cfe76ab7efef07ad..0000000000000000000000000000000000000000
--- a/conversations/conv_013219.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3389-13248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-13248.flac |",
-      "real_speaker_id": "3389",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 4.961327934179011,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 56181
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "3389-13248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-13248.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_013224.json b/conversations/conv_013224.json
deleted file mode 100644
index fb6c659dc44b779b3f2c82cfd44ed1e4fdd936df..0000000000000000000000000000000000000000
--- a/conversations/conv_013224.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "6153",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 98361
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "6590"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6590/cough/0133.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013225.json b/conversations/conv_013225.json
deleted file mode 100644
index 1ffff02126b352534207e7f7f6f3faed972f98d9..0000000000000000000000000000000000000000
--- a/conversations/conv_013225.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126959.flac |",
-      "real_speaker_id": "548",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-36956.flac |",
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-    {
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-    {
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-      "segment_id": "seg0005",
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-  "background_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_013228.json b/conversations/conv_013228.json
deleted file mode 100644
index dc7feed8f230b17205c3a359ea7c2950ffe99b18..0000000000000000000000000000000000000000
--- a/conversations/conv_013228.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.435511136098844,
-      "duration": 4.435511136098844,
-      "start_frame": 0,
-      "duration_frames": 70968,
-      "overlap": false,
-      "utterance_id": "7683-103530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.2643219847473715,
-      "end_time": 11.535306621010953,
-      "duration": 6.270984636263583,
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-      "duration_frames": 100335,
-      "overlap": false,
-      "utterance_id": "7683-103530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 70968
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.13788181267224,
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-      "duration": 5.319545685401819,
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-      "duration_frames": 85112,
-      "overlap": false,
-      "utterance_id": "2598-4662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4662.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.509353801913694,
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-      "overlap": true,
-      "utterance_id": "7683-103530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 171303
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.668219975854292,
-      "end_time": 27.115421161374428,
-      "duration": 3.4472011855201377,
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-      "duration_frames": 55155,
-      "overlap": false,
-      "utterance_id": "6131-229040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.716005358066212,
-      "end_time": 32.0,
-      "duration": 4.283994641933788,
-      "start_frame": 443456,
-      "duration_frames": 68543,
-      "overlap": false,
-      "utterance_id": "7683-103530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 250276
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
-      "duration": 0.16043083900226757,
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7683/cough/0064.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "7683"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2598/laugh/0109.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6131/laugh/0049.wav",
-      "duration": 0.88,
-      "start_time": 27.178891729635797,
-      "speaker_id": "6131"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7683/cough/0070.wav",
-      "duration": 1.2781770647003348,
-      "start_time": 26.296229919994524,
-      "speaker_id": "7683"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013232.json b/conversations/conv_013232.json
deleted file mode 100644
index 25e406a6811cde17588ea0894aa3136a4dc29eba..0000000000000000000000000000000000000000
--- a/conversations/conv_013232.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.73300341370519,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "684-137978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-137978.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.154798539287055,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-141263.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8631-283727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "684-137978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-137978.flac |",
-      "real_speaker_id": "684",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8631-283727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 73823
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8631-283727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 146938
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8631/laugh/0026.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "8631"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013245.json b/conversations/conv_013245.json
deleted file mode 100644
index aacb7364b20a41b55a08a0c224c43f897613c3a3..0000000000000000000000000000000000000000
--- a/conversations/conv_013245.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4235-7631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7631.flac |",
-      "real_speaker_id": "4235",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/829-123191.flac |",
-      "real_speaker_id": "829",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
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-      "real_speaker_id": "1681",
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-    {
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-      "position_frames": 221102
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-    {
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013249.json b/conversations/conv_013249.json
deleted file mode 100644
index ec9ca786604e9c54f5faa593e90779683df33305..0000000000000000000000000000000000000000
--- a/conversations/conv_013249.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6127-14967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-14967.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
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-    {
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-    {
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-  "background_events": [
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-      "event_class": "Dog",
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-      "speaker_id": "7538"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/laugh/0105.wav",
-      "duration": 1.24,
-      "start_time": 20.75293015982745,
-      "speaker_id": "6127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013253.json b/conversations/conv_013253.json
deleted file mode 100644
index 35e82ecde7c87bbe8afca33982c2b51f94478b75..0000000000000000000000000000000000000000
--- a/conversations/conv_013253.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.08728427062805,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "5933-91994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-91994.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 6.2899106489564955,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 11.202805204685294,
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-      "utterance_id": "5854-50960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-50960.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 18.474948073270852,
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-      "utterance_id": "8392-285237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
-      "position_frames": 80777
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.5361217013292,
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-      "duration_frames": 64538,
-      "overlap": true,
-      "utterance_id": "5854-50960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-50960.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 103744
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.786233218211738,
-      "end_time": 31.08728427062805,
-      "duration": 4.301051052416313,
-      "start_frame": 428579,
-      "duration_frames": 68816,
-      "overlap": true,
-      "utterance_id": "8392-285237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
-      "position_frames": 147044
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5933/laugh/0019.wav",
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-      "start_time": 6.401157741095128,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5854/cough/0067.wav",
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-      "speaker_id": "5854"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013258.json b/conversations/conv_013258.json
deleted file mode 100644
index 442e7a2e4746ec7f8560f67528ca0dfc84aa40f2..0000000000000000000000000000000000000000
--- a/conversations/conv_013258.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
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-      "position_frames": 0
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-      "utterance_id": "4273-188164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188164.flac |",
-      "real_speaker_id": "4273",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188158.flac |",
-      "real_speaker_id": "4273",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-109658.flac |",
-      "real_speaker_id": "7766",
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-    },
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-      "segment_id": "seg0004",
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-      "start_time": 19.397119231366517,
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-      "utterance_id": "2985-153202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2985-153202.flac |",
-      "real_speaker_id": "2985",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 23.666582402699174,
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-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 50575
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.259718493417353,
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-      "utterance_id": "4273-188161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188161.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
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-      "duration": 1.36,
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-      "speaker_id": "2985"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 25.832091547980077,
-      "speaker_id": "7766"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 26.6855957557208,
-      "speaker_id": "4273"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013262.json b/conversations/conv_013262.json
deleted file mode 100644
index e1c8aeaad283e1217740e109de11f5d030247d8e..0000000000000000000000000000000000000000
--- a/conversations/conv_013262.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.79496164621322,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "7463-99912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-99912.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.964328079725155,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-96494.flac |",
-      "real_speaker_id": "7463",
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-      "utterance_id": "6300-39660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39660.flac |",
-      "real_speaker_id": "6300",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.235052445649886,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-96494.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 56791
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "position_frames": 95574
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7463-96494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-96494.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 130759
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "6300-39661",
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-      "real_speaker_id": "6300",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013265.json b/conversations/conv_013265.json
deleted file mode 100644
index 408516e97ebabc24cd7130719cd8d2918770e8fe..0000000000000000000000000000000000000000
--- a/conversations/conv_013265.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.29308925480474,
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-      "duration": 4.706910745195259,
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-      "utterance_id": "1819-144402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144402.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 90264
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-  "background_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "duration": 1.52,
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-      "event_class": "laugh",
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-      "speaker_id": "3009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013269.json b/conversations/conv_013269.json
deleted file mode 100644
index 7e4b10593730ac9528351c1218ac7d6152763541..0000000000000000000000000000000000000000
--- a/conversations/conv_013269.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "27-123349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3549-171171.flac |",
-      "real_speaker_id": "3549",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 179035
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.148496228230805,
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-      "utterance_id": "3549-9203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3549-9203.flac |",
-      "real_speaker_id": "3549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.246407750645293,
-      "end_time": 32.0,
-      "duration": 0.7535922493547069,
-      "start_frame": 499942,
-      "duration_frames": 12057,
-      "overlap": false,
-      "utterance_id": "27-123349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 264957
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "start_time": 30.96,
-      "speaker_id": "27"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_013272.json b/conversations/conv_013272.json
deleted file mode 100644
index 5e571b275d33416cc6ab552b0586803d45de10f5..0000000000000000000000000000000000000000
--- a/conversations/conv_013272.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "8432-16000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-16000.flac |",
-      "real_speaker_id": "8432",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
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-      "start_time": 15.20440485392313,
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-      "position_frames": 0
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-    {
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-      "utterance_id": "451-126826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126826.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "speaker_id": "451"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013273.json b/conversations/conv_013273.json
deleted file mode 100644
index b00ff881291ec37680d82f9d21f226ec0ecd2061..0000000000000000000000000000000000000000
--- a/conversations/conv_013273.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8152-282985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-282985.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
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-    {
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-    {
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-      "real_speaker_id": "4681",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8152-282985",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013286.json b/conversations/conv_013286.json
deleted file mode 100644
index 7f26ff46ea461ba528ad92fd1a6cee6a777c34f8..0000000000000000000000000000000000000000
--- a/conversations/conv_013286.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.146619511666625,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123048.flac |",
-      "real_speaker_id": "362",
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\ No newline at end of file
diff --git a/conversations/conv_013290.json b/conversations/conv_013290.json
deleted file mode 100644
index 0f50ee16072bd7a7a0e75a6ba08d6fa43c66b72f..0000000000000000000000000000000000000000
--- a/conversations/conv_013290.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1647",
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-      "position_frames": 0
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-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_013300.json b/conversations/conv_013300.json
deleted file mode 100644
index c5f44bf971054f7280953d5eaf7b2ea56ead9b0c..0000000000000000000000000000000000000000
--- a/conversations/conv_013300.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "7433",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_013316.json b/conversations/conv_013316.json
deleted file mode 100644
index 175a2b581560121dd561586f03320dcde4ba491f..0000000000000000000000000000000000000000
--- a/conversations/conv_013316.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-134615.flac |",
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-      "segment_id": "seg0001",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_013320.json b/conversations/conv_013320.json
deleted file mode 100644
index 2ad82beddfa3dce3e51b9c988dc3a53913b4e27b..0000000000000000000000000000000000000000
--- a/conversations/conv_013320.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3340-169293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-169293.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013327.json b/conversations/conv_013327.json
deleted file mode 100644
index b5e3fc51609ee2db95c4c7459d0db808af55273e..0000000000000000000000000000000000000000
--- a/conversations/conv_013327.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.075791389548424,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173554.flac |",
-      "real_speaker_id": "3571",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.656017592514083,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7932-278228.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 132295
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173554.flac |",
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-      "position_frames": 93849
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_013336.json b/conversations/conv_013336.json
deleted file mode 100644
index 57d523ab78642049a7c376a54aeed56998c5c519..0000000000000000000000000000000000000000
--- a/conversations/conv_013336.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.957955436979315,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "7514",
-      "position_frames": 60006
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7069-246892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246892.flac |",
-      "real_speaker_id": "7069",
-      "position_frames": 0
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-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013337.json b/conversations/conv_013337.json
deleted file mode 100644
index 684f1779bb9ddf4586f087f467ca7dd7368af049..0000000000000000000000000000000000000000
--- a/conversations/conv_013337.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.34907691273181,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3871-693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-693.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7059",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-64075.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.631652245763384,
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-      "utterance_id": "3871-692",
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-      "real_speaker_id": "3871",
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013341.json b/conversations/conv_013341.json
deleted file mode 100644
index de0a4a32577b0e739790e160fb5ed86e11b7eee0..0000000000000000000000000000000000000000
--- a/conversations/conv_013341.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013357.json b/conversations/conv_013357.json
deleted file mode 100644
index 0b278ade417221909e4d6e88c92d1e579193c95f..0000000000000000000000000000000000000000
--- a/conversations/conv_013357.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5809-51163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51163.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_013361.json b/conversations/conv_013361.json
deleted file mode 100644
index ae15994a01ebeda6e775bfe87c19b9e3ce73fd81..0000000000000000000000000000000000000000
--- a/conversations/conv_013361.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121074.flac |",
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-  "foreground_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013377.json b/conversations/conv_013377.json
deleted file mode 100644
index bbbe3d44b50cbc86ef6d73e24d2d37a476fd8abd..0000000000000000000000000000000000000000
--- a/conversations/conv_013377.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3983-5371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5371.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 62791
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "duration": 2.3537293655065454,
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-      "utterance_id": "6686-216563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6686-216563.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4863/laugh/0009.wav",
-      "duration": 1.46,
-      "start_time": 0.47906628586546074,
-      "speaker_id": "4863"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3983/laugh/0037.wav",
-      "duration": 1.8,
-      "start_time": 6.767941199955978,
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-      "event_class": "cough",
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-      "duration": 1.0328942329091204,
-      "start_time": 10.380544657156108,
-      "speaker_id": "4863"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013382.json b/conversations/conv_013382.json
deleted file mode 100644
index 33d4d791a5537c426338edbf189c699fbbdcc285..0000000000000000000000000000000000000000
--- a/conversations/conv_013382.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7510-282529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282529.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.567273570887019,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 0
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-      "utterance_id": "3717-21493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21493.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.529124707877276,
-      "end_time": 18.796061224375688,
-      "duration": 5.266936516498412,
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-      "overlap": false,
-      "utterance_id": "7510-282967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282967.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.35105693308405,
-      "end_time": 23.289985789705124,
-      "duration": 3.9389288566210747,
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-      "duration_frames": 63022,
-      "overlap": false,
-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 68622
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.184880020379154,
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-      "utterance_id": "3717-21498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21498.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.430382590151723,
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-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013394.json b/conversations/conv_013394.json
deleted file mode 100644
index d85c8633cc8c225d652ac65fd58bdc6feda0cf13..0000000000000000000000000000000000000000
--- a/conversations/conv_013394.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-26564.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66269.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-33410.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "overlap": true,
-      "utterance_id": "3906-191426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-191426.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.693484956700182,
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-      "overlap": false,
-      "utterance_id": "6583-66463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66463.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5132-28304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-28304.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013398.json b/conversations/conv_013398.json
deleted file mode 100644
index 15f4687cad87a4c43ec11fb8c2d53933e524be17..0000000000000000000000000000000000000000
--- a/conversations/conv_013398.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "4014-186176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4014-186176.flac |",
-      "real_speaker_id": "4014",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278846.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4014-186176.flac |",
-      "real_speaker_id": "4014",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 3.087406335790959,
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-      "overlap": false,
-      "utterance_id": "4014-186175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4014-186175.flac |",
-      "real_speaker_id": "4014",
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4014/laugh/0060.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013402.json b/conversations/conv_013402.json
deleted file mode 100644
index 8f7a2cd1b65bb998b2766a7e31957b18094b6e77..0000000000000000000000000000000000000000
--- a/conversations/conv_013402.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "end_time": 4.736141519915082,
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-      "utterance_id": "1121-132777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1121-132777.flac |",
-      "real_speaker_id": "1121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2136",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
-      "real_speaker_id": "6281",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5143.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_3.wav",
-      "duration": 1.3247845804988663,
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1121/laugh/0046.wav",
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-      "event_class": "laugh",
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-      "duration": 0.8118636217316142,
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-    {
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-      "speaker_id": "2136"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013414.json b/conversations/conv_013414.json
deleted file mode 100644
index 25295992be60ba64995f7dc0aa4e0a1c0d835371..0000000000000000000000000000000000000000
--- a/conversations/conv_013414.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.810959687795837,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3245-169642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-169642.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.538646638497898,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6967-50150.flac |",
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-      "start_time": 12.420828274844375,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-62827.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
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-      "duration": 1.32,
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-    {
-      "event_class": "cough",
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-      "duration": 0.84,
-      "start_time": 29.48372876521146,
-      "speaker_id": "1639"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013418.json b/conversations/conv_013418.json
deleted file mode 100644
index 8c414c91edf086ac25bc288a03189a3fe67e4252..0000000000000000000000000000000000000000
--- a/conversations/conv_013418.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "78-369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-369.flac |",
-      "real_speaker_id": "78",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25377.flac |",
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-      "real_speaker_id": "2256",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25377.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 66612
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2256-137627",
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-      "real_speaker_id": "2256",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-368.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.155929663687626,
-      "end_time": 31.521806606666928,
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-      "duration_frames": 21854,
-      "overlap": true,
-      "utterance_id": "4791-25379",
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-  "background_events": [
-    {
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013419.json b/conversations/conv_013419.json
deleted file mode 100644
index ed5249d0f1186d6959f41b00a01320f85fb51ebf..0000000000000000000000000000000000000000
--- a/conversations/conv_013419.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.013393276372298,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-249840.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130096.flac |",
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-    {
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-      "segment_id": "seg0005",
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-      "event_class": "laugh",
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-      "start_time": 15.30088578918234,
-      "speaker_id": "810"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013422.json b/conversations/conv_013422.json
deleted file mode 100644
index 3a682ce3d05532b19c796ce18b509e12494967a8..0000000000000000000000000000000000000000
--- a/conversations/conv_013422.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "1161-135206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.296398712890099,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 105593
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.998661323834725,
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013425.json b/conversations/conv_013425.json
deleted file mode 100644
index 2dc02ed0f02cfd43b5366303ca3c1312c761ba0b..0000000000000000000000000000000000000000
--- a/conversations/conv_013425.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1724-395.flac |",
-      "real_speaker_id": "1724",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-141758.flac |",
-      "real_speaker_id": "1665",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.361880532596224,
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-      "utterance_id": "1724-395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1724-395.flac |",
-      "real_speaker_id": "1724",
-      "position_frames": 88143
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3819.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 100454
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_013433.json b/conversations/conv_013433.json
deleted file mode 100644
index 49bb78bef74902fc17148f256a0017ad7679adf0..0000000000000000000000000000000000000000
--- a/conversations/conv_013433.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "4964",
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-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013434.json b/conversations/conv_013434.json
deleted file mode 100644
index 31ca14a7f572d8b1604d1a3f27e35482fdcd602a..0000000000000000000000000000000000000000
--- a/conversations/conv_013434.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.954945824870364,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26563.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
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-      "segment_id": "seg0002",
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-  "foreground_events": [
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-      "duration": 1.08,
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-      "speaker_id": "4979"
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\ No newline at end of file
diff --git a/conversations/conv_013438.json b/conversations/conv_013438.json
deleted file mode 100644
index 9431feddf31491104848503f75d83e61abde2dea..0000000000000000000000000000000000000000
--- a/conversations/conv_013438.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-5710.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.384833079744094,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2999-156967.flac |",
-      "real_speaker_id": "2999",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.598478153652522,
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-      "real_speaker_id": "177",
-      "position_frames": 0
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_013442.json b/conversations/conv_013442.json
deleted file mode 100644
index db322955b60ea43cd18b43898093a8b38b78f116..0000000000000000000000000000000000000000
--- a/conversations/conv_013442.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121743.flac |",
-      "real_speaker_id": "161",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "500",
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\ No newline at end of file
diff --git a/conversations/conv_013443.json b/conversations/conv_013443.json
deleted file mode 100644
index 763d9b41da6f41cfbac5f721994598c7a7e3a176..0000000000000000000000000000000000000000
--- a/conversations/conv_013443.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_013455.json b/conversations/conv_013455.json
deleted file mode 100644
index e140eb0a889b17f312dca8ff20e4f73deabdbe9d..0000000000000000000000000000000000000000
--- a/conversations/conv_013455.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "position_frames": 131874
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-}
\ No newline at end of file
diff --git a/conversations/conv_013459.json b/conversations/conv_013459.json
deleted file mode 100644
index c5247db98df3887cb97dccb22cad34d0f29ca0c3..0000000000000000000000000000000000000000
--- a/conversations/conv_013459.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "78-368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-368.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127929.flac |",
-      "real_speaker_id": "956",
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-      "real_speaker_id": "8678",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "position_frames": 76078
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127929.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 60350
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
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\ No newline at end of file
diff --git a/conversations/conv_013463.json b/conversations/conv_013463.json
deleted file mode 100644
index aa05f268fc3e29e37ff1b4ef0987291fc0e1af2c..0000000000000000000000000000000000000000
--- a/conversations/conv_013463.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 144248
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-723.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_013464.json b/conversations/conv_013464.json
deleted file mode 100644
index 10dbcd2bfe158003055a37bda544fd389823b9e4..0000000000000000000000000000000000000000
--- a/conversations/conv_013464.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-18515.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-18515.flac |",
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_013472.json b/conversations/conv_013472.json
deleted file mode 100644
index 48aae2f4d5ddf79f292b05542486864de1cd6e1e..0000000000000000000000000000000000000000
--- a/conversations/conv_013472.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120456.flac |",
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-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-  "foreground_events": [
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-      "start_time": 30.8,
-      "speaker_id": "4697"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013475.json b/conversations/conv_013475.json
deleted file mode 100644
index c88089b40ab4efb99abdb78dda8c1a4bd85c4a60..0000000000000000000000000000000000000000
--- a/conversations/conv_013475.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6906-65918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 3.1739117762692928,
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-      "position_frames": 0
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-      "utterance_id": "6906-65918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 48716
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "6497-234067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234067.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.40757955851157,
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-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.88642376742457,
-      "end_time": 32.0,
-      "duration": 4.113576232575429,
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-      "overlap": false,
-      "utterance_id": "6497-234106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234106.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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\ No newline at end of file
diff --git a/conversations/conv_013479.json b/conversations/conv_013479.json
deleted file mode 100644
index d735d4931ef700884b71aedd723512560621df53..0000000000000000000000000000000000000000
--- a/conversations/conv_013479.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.917115479388087,
-  "num_speakers": 3,
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-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-130755.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 0
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-      "real_speaker_id": "6388",
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-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "2568-156115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156115.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.863162299629018,
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-      "overlap": false,
-      "utterance_id": "2568-156117",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156117.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013480.json b/conversations/conv_013480.json
deleted file mode 100644
index 506dfeb722dcaf5ad4cbbe7e3a73d60d9c332193..0000000000000000000000000000000000000000
--- a/conversations/conv_013480.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.098937658092737,
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-      "utterance_id": "1603-139325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139325.flac |",
-      "real_speaker_id": "1603",
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-      "real_speaker_id": "1603",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-139804.flac |",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.56,
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-      "speaker_id": "1290"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013496.json b/conversations/conv_013496.json
deleted file mode 100644
index 9be5bd6228bbfc85f167ca54dc14c70206b736bb..0000000000000000000000000000000000000000
--- a/conversations/conv_013496.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-      "speaker_id": "2002"
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-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 15.254381319960151,
-      "speaker_id": "6550"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2002/laugh/0000.wav",
-      "duration": 1.6,
-      "start_time": 23.221521846009903,
-      "speaker_id": "2002"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8867/laugh/0002.wav",
-      "duration": 0.820865943353495,
-      "start_time": 30.16806612801726,
-      "speaker_id": "8867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013506.json b/conversations/conv_013506.json
deleted file mode 100644
index 738c537c4f5ca6402df397f28c02b17038dd4dc8..0000000000000000000000000000000000000000
--- a/conversations/conv_013506.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.751229501274113,
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-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 67289
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.899855447331973,
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-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 69943
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.051456564396723,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 161174
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 159955
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_11.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013510.json b/conversations/conv_013510.json
deleted file mode 100644
index 573a1b8cb0a168c492869e4c7b177a3ee7c04133..0000000000000000000000000000000000000000
--- a/conversations/conv_013510.json
+++ /dev/null
@@ -1,101 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7704-106974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106974.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7704-106965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106965.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 22.92225488451663,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 30.36259003712174,
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-      "duration": 1.6374099628782588,
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-      "utterance_id": "7704-106965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106965.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 110948
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_013521.json b/conversations/conv_013521.json
deleted file mode 100644
index 283c55279a0df1a44188845535e9a1148076d4cc..0000000000000000000000000000000000000000
--- a/conversations/conv_013521.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "8394-96177",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "2182-181173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181173.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 111442
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8619",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.32504671595828,
-      "end_time": 32.0,
-      "duration": 2.6749532840417203,
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-      "overlap": false,
-      "utterance_id": "8394-96177",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 199280
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013526.json b/conversations/conv_013526.json
deleted file mode 100644
index f793d930a15011ee471e0ead1731be6384a8818d..0000000000000000000000000000000000000000
--- a/conversations/conv_013526.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6399-278846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278846.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.021160504785803,
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-      "real_speaker_id": "1559",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6399-278844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278844.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278849.flac |",
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-    {
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.54189613730773,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "6399-278846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278846.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 79214
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1559/cough/0026.wav",
-      "duration": 0.8285114134304579,
-      "start_time": 9.149561358286546,
-      "speaker_id": "1559"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6399/cough/0149.wav",
-      "duration": 0.9121096760520611,
-      "start_time": 8.407603541578577,
-      "speaker_id": "6399"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6399/laugh/0116.wav",
-      "duration": 1.2424673644854953,
-      "start_time": 16.65137142964785,
-      "speaker_id": "6399"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013530.json b/conversations/conv_013530.json
deleted file mode 100644
index b971b3753a8b1432a83e0a28f33856d4450ca3ad..0000000000000000000000000000000000000000
--- a/conversations/conv_013530.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.88051769656772,
-      "duration": 6.88051769656772,
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-      "overlap": false,
-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.756723734235644,
-      "end_time": 11.303849024842036,
-      "duration": 3.5471252906063917,
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-      "duration_frames": 56754,
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-      "utterance_id": "6513-71946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71946.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.077385692746414,
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-      "overlap": false,
-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 110088
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.059964724575266,
-      "end_time": 21.964054103128987,
-      "duration": 4.9040893785537225,
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-      "overlap": false,
-      "utterance_id": "6513-71944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71944.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.130060243613727,
-      "end_time": 28.34745732988368,
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-      "overlap": false,
-      "utterance_id": "7218-80699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-80699.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.841099212808228,
-      "end_time": 32.0,
-      "duration": 3.1589007871917723,
-      "start_frame": 461457,
-      "duration_frames": 50542,
-      "overlap": false,
-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 179402
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Running_water",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.7049482164691527,
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-      "speaker_id": "7218"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7090/laugh/0040.wav",
-      "duration": 1.64,
-      "start_time": 30.36,
-      "speaker_id": "7090"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013537.json b/conversations/conv_013537.json
deleted file mode 100644
index 909485968ad53e4b867225411a01697d90088094..0000000000000000000000000000000000000000
--- a/conversations/conv_013537.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.89839615451548,
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-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 0
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-      "utterance_id": "4640-19187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19187.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.779132684238654,
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-      "duration": 4.6667539950210895,
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-      "overlap": false,
-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 82787
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.545645869572464,
-      "end_time": 29.24631460105661,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19187.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 80210
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Cat",
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-      "start_time": 13.250158837177672
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_013547.json b/conversations/conv_013547.json
deleted file mode 100644
index f23f680f6734c6b3a2355c5aa369bbd95903c82c..0000000000000000000000000000000000000000
--- a/conversations/conv_013547.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8824-279153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
-      "real_speaker_id": "8824",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.306762584047919,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7505-83618.flac |",
-      "real_speaker_id": "7505",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
-      "real_speaker_id": "8824",
-      "position_frames": 90268
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.21646345458685,
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-      "utterance_id": "7505-258964",
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-      "real_speaker_id": "7505",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "7505",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.24197406552211,
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-      "duration_frames": 51703,
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-      "utterance_id": "8824-279153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
-      "real_speaker_id": "8824",
-      "position_frames": 175464
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8824/laugh/0108.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013551.json b/conversations/conv_013551.json
deleted file mode 100644
index 9254b6c71e72baad94431f9b02d0c0d3326e94fe..0000000000000000000000000000000000000000
--- a/conversations/conv_013551.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.62495733607246,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.199877734167309,
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-      "overlap": false,
-      "utterance_id": "1271-133279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-133279.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.7034015677235783,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162238.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6351-65787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-65787.flac |",
-      "real_speaker_id": "6351",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.348690936386754,
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6351-64714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-133279.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 144380
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1271/laugh/0057.wav",
-      "duration": 1.44,
-      "start_time": 0,
-      "speaker_id": "1271"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6351/cough/0025.wav",
-      "duration": 0.9047885837156833,
-      "start_time": 8.534359490100258,
-      "speaker_id": "6351"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1271/cough/0055.wav",
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-      "speaker_id": "1271"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_013560.json b/conversations/conv_013560.json
deleted file mode 100644
index f4de8de2eb140182c1233564a75bc454d418d5ac..0000000000000000000000000000000000000000
--- a/conversations/conv_013560.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.60473988508318,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-7597.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.953285006795067,
-      "end_time": 20.349113633020174,
-      "duration": 3.395828626225106,
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-      "overlap": false,
-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 100785
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.519413278997234,
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-      "utterance_id": "218-131206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.652872447882938,
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-      "overlap": false,
-      "utterance_id": "3394-168627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-168627.flac |",
-      "real_speaker_id": "3394",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.124725134249275,
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-      "utterance_id": "218-131205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
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-      "position_frames": 90055
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_013567.json b/conversations/conv_013567.json
deleted file mode 100644
index f8184012960565f46e4741ff1d3c41fd30897623..0000000000000000000000000000000000000000
--- a/conversations/conv_013567.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.506984516773045,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.957322560296236,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-718.flac |",
-      "real_speaker_id": "3433",
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "6391-65553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
-      "real_speaker_id": "6391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.747995697159578,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
-      "real_speaker_id": "6391",
-      "position_frames": 76988
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3433-20043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-20043.flac |",
-      "real_speaker_id": "3433",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3433/cough/0061.wav",
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-      "speaker_id": "3433"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013571.json b/conversations/conv_013571.json
deleted file mode 100644
index e09b73cc036ba63d1c5eb280925acfea3d34a41b..0000000000000000000000000000000000000000
--- a/conversations/conv_013571.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18040.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145724.flac |",
-      "real_speaker_id": "1898",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3757-134142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134142.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.683106056448782,
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-      "utterance_id": "1898-145720",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3757-134143",
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-    {
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-      "duration": 1.18,
-      "start_time": 26.289837239005667,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4379/cough/0149.wav",
-      "duration": 0.501807351835287,
-      "start_time": 20.95819148921021,
-      "speaker_id": "4379"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013576.json b/conversations/conv_013576.json
deleted file mode 100644
index 941982295329698bd81cad0427fad742b9d95690..0000000000000000000000000000000000000000
--- a/conversations/conv_013576.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_frame": 0,
-      "duration_frames": 97282,
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-      "utterance_id": "6006-60480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60480.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "110-2",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_013584.json b/conversations/conv_013584.json
deleted file mode 100644
index a1ed9283bf3928cd46c878831d74100b6159768a..0000000000000000000000000000000000000000
--- a/conversations/conv_013584.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.863885114564592,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "2356-154907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-134434.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-60547.flac |",
-      "real_speaker_id": "6625",
-      "position_frames": 0
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-      "start_time": 14.988696473945012,
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-      "real_speaker_id": "6625",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-134434.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 76393
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 73093
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-  "foreground_events": [
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013588.json b/conversations/conv_013588.json
deleted file mode 100644
index a45b53d9fe1f09df5a0d35dce86aa486992fb9d6..0000000000000000000000000000000000000000
--- a/conversations/conv_013588.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-161065.flac |",
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7859-102519.flac |",
-      "real_speaker_id": "7859",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.22746228850378,
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-      "utterance_id": "4705-94467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94467.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
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-      "real_speaker_id": "7859",
-      "position_frames": 66908
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-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_013592.json b/conversations/conv_013592.json
deleted file mode 100644
index 57e9cbd3a7112b42ec70a65847063ac28cf486a2..0000000000000000000000000000000000000000
--- a/conversations/conv_013592.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4278-13270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-13270.flac |",
-      "real_speaker_id": "4278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "492",
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-      "real_speaker_id": "5724",
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-    {
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "492-131887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/492-131887.flac |",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "speaker_id": "4278"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013599.json b/conversations/conv_013599.json
deleted file mode 100644
index 6e424461feb9c9f4a1262a373ac6aa85522cdccd..0000000000000000000000000000000000000000
--- a/conversations/conv_013599.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6804-79287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79287.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "664",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
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-      "position_frames": 101544
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-  "background_events": [
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-      "event_class": "Blender",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/664/laugh/0048.wav",
-      "duration": 1.08,
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-      "speaker_id": "664"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013603.json b/conversations/conv_013603.json
deleted file mode 100644
index 1af31f18dfb28b110ee6756e9eaec6d4f2490145..0000000000000000000000000000000000000000
--- a/conversations/conv_013603.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5132-33410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-33410.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84200.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84206.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
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-      "utterance_id": "8044-84200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84200.flac |",
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-      "position_frames": 76663
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013608.json b/conversations/conv_013608.json
deleted file mode 100644
index 9b1731e5090acabfff6b18a2b09126205b22876d..0000000000000000000000000000000000000000
--- a/conversations/conv_013608.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284268.flac |",
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-    {
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-      "utterance_id": "6077-56146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-56146.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "3411",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-56146.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 53753
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013615.json b/conversations/conv_013615.json
deleted file mode 100644
index ad23bae6d1bfabd2ab43bf71dea6baf2971b3257..0000000000000000000000000000000000000000
--- a/conversations/conv_013615.json
+++ /dev/null
@@ -1,95 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.960379279443845,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6215-68888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-68888.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.658704113069274,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-92002.flac |",
-      "real_speaker_id": "7460",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.11427713917547,
-      "end_time": 17.951178260698015,
-      "duration": 5.836901121522543,
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-      "duration_frames": 93390,
-      "overlap": false,
-      "utterance_id": "6215-68888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-68888.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 93399
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-68888.flac |",
-      "real_speaker_id": "6215",
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-    },
-    {
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-      "utterance_id": "4018-103416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-103416.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_013619.json b/conversations/conv_013619.json
deleted file mode 100644
index 1ce8115b4369e8719a4774cac0c37a654ee556b9..0000000000000000000000000000000000000000
--- a/conversations/conv_013619.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7095-88483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88483.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4211",
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-      "position_frames": 0
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-      "event_class": "laugh",
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-      "duration": 0.5121085424450829,
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-      "speaker_id": "2582"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013622.json b/conversations/conv_013622.json
deleted file mode 100644
index 9ae97aa8177042ad3ffa340bb1f284272a150344..0000000000000000000000000000000000000000
--- a/conversations/conv_013622.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.023269477553722,
-  "num_speakers": 3,
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-      "utterance_id": "8410-278217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8410-278217.flac |",
-      "real_speaker_id": "8410",
-      "position_frames": 0
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-      "start_time": 6.633594462307373,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41157.flac |",
-      "real_speaker_id": "4218",
-      "position_frames": 0
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-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8410-278220.flac |",
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-      "position_frames": 85129
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "start_time": 30.76,
-      "speaker_id": "8410"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013623.json b/conversations/conv_013623.json
deleted file mode 100644
index 7aecf7cde6de946991f03a843600a6c96ddf5c27..0000000000000000000000000000000000000000
--- a/conversations/conv_013623.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_013632.json b/conversations/conv_013632.json
deleted file mode 100644
index e32f347f9c16709610df16403326387ab109a9e5..0000000000000000000000000000000000000000
--- a/conversations/conv_013632.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-130125.flac |",
-      "real_speaker_id": "3889",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7326",
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-      "real_speaker_id": "127",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3889",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 74068
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013635.json b/conversations/conv_013635.json
deleted file mode 100644
index fcbb20398121c0bd46e2940586ae1ca53c72732a..0000000000000000000000000000000000000000
--- a/conversations/conv_013635.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1171-134968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-134968.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_013639.json b/conversations/conv_013639.json
deleted file mode 100644
index 0cdf0594bed2932b278b77fdc48ffe83fc953c57..0000000000000000000000000000000000000000
--- a/conversations/conv_013639.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.460756616451132,
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-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6865-95969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95969.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95963.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-131525.flac |",
-      "real_speaker_id": "1804",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-59283.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.470993167012434,
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-      "start_frame": 391535,
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-      "utterance_id": "1804-131525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-131525.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 59790
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_013642.json b/conversations/conv_013642.json
deleted file mode 100644
index a45ea815a5372747cd4753e1aaa3a2c32e85551e..0000000000000000000000000000000000000000
--- a/conversations/conv_013642.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.147206552660343,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "overlap": false,
-      "utterance_id": "2312-147629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2312-147629.flac |",
-      "real_speaker_id": "2312",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.6849743114104605,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-149798.flac |",
-      "real_speaker_id": "3994",
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-      "position_frames": 0
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-      "utterance_id": "2312-161206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2312-161206.flac |",
-      "real_speaker_id": "2312",
-      "position_frames": 58275
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-149798.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 51278
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.87544707748736,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-8365.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3994/laugh/0068.wav",
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-    {
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "3547"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013649.json b/conversations/conv_013649.json
deleted file mode 100644
index fcd139cb7182614169456f613cad75b76e86899d..0000000000000000000000000000000000000000
--- a/conversations/conv_013649.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.632464692709913,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7994-258960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258960.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-13164.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5656-44576.flac |",
-      "real_speaker_id": "5656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-13164.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 88959
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5656-44577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5656-44577.flac |",
-      "real_speaker_id": "5656",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "5656"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013654.json b/conversations/conv_013654.json
deleted file mode 100644
index 9d154b4ffa383d5f38b3c75507969b41221ddb64..0000000000000000000000000000000000000000
--- a/conversations/conv_013654.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_013658.json b/conversations/conv_013658.json
deleted file mode 100644
index bc63557f6a0e293bfb4a9c4f43cc7cd63e32e9c3..0000000000000000000000000000000000000000
--- a/conversations/conv_013658.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_013662.json b/conversations/conv_013662.json
deleted file mode 100644
index 9cfaccb657259ff3f096b6698ff9143fbb68c773..0000000000000000000000000000000000000000
--- a/conversations/conv_013662.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_013674.json b/conversations/conv_013674.json
deleted file mode 100644
index 25834b59592273c6f2b03b39b407835e190f91d0..0000000000000000000000000000000000000000
--- a/conversations/conv_013674.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8008/laugh/0021.wav",
-      "duration": 1.32,
-      "start_time": 5.171927766761809,
-      "speaker_id": "8008"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3221/laugh/0020.wav",
-      "duration": 1.22,
-      "start_time": 25.594987200797306,
-      "speaker_id": "3221"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013678.json b/conversations/conv_013678.json
deleted file mode 100644
index eb8aae9a809b15d34edb0ee8e2be7014b6bc8504..0000000000000000000000000000000000000000
--- a/conversations/conv_013678.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5653-46266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46266.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.69601328300615,
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-      "duration": 3.2153103636317426,
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-      "utterance_id": "446-123501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123501.flac |",
-      "real_speaker_id": "446",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.23200063231464,
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-      "overlap": false,
-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.76229460415307,
-      "end_time": 23.07024605883865,
-      "duration": 6.307951454685577,
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-      "overlap": false,
-      "utterance_id": "4122-157669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4122-157669.flac |",
-      "real_speaker_id": "4122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.771808083231587,
-      "end_time": 30.100987340543103,
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-      "utterance_id": "4122-157669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4122-157669.flac |",
-      "real_speaker_id": "4122",
-      "position_frames": 100927
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.77966406785509,
-      "end_time": 32.0,
-      "duration": 1.2203359321449092,
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-      "overlap": false,
-      "utterance_id": "5653-46266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46266.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 70245
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5653/laugh/0054.wav",
-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "5653"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013681.json b/conversations/conv_013681.json
deleted file mode 100644
index ef8a8098b04a25e916226aa059dbf543064ce54d..0000000000000000000000000000000000000000
--- a/conversations/conv_013681.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6695-71407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-71407.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 71292
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-      "real_speaker_id": "6696",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6701-71401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71401.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73296.flac |",
-      "real_speaker_id": "6696",
-      "position_frames": 130747
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.06881203000625,
-      "end_time": 32.0,
-      "duration": 1.9311879699937506,
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-      "utterance_id": "6695-252325",
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-  "background_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "6701"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013697.json b/conversations/conv_013697.json
deleted file mode 100644
index 62f7a8e1d96d55a0c52b612f5ad6eff72a3eef4d..0000000000000000000000000000000000000000
--- a/conversations/conv_013697.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.62169739775026,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "4104-181012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-181012.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-181012.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 97687
-    },
-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.123189649869214,
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013707.json b/conversations/conv_013707.json
deleted file mode 100644
index cd61bedc211ff0e72c6b68a30d7d4810af4d3ed0..0000000000000000000000000000000000000000
--- a/conversations/conv_013707.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 0
-    },
-    {
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-      "duration": 1.36,
-      "start_time": 10.968877196654518,
-      "speaker_id": "8023"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1828/laugh/0082.wav",
-      "duration": 1.08,
-      "start_time": 15.93571170091752,
-      "speaker_id": "1828"
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-    {
-      "event_class": "cough",
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-      "duration": 0.7576607636939757,
-      "start_time": 21.62585693225304,
-      "speaker_id": "1828"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013711.json b/conversations/conv_013711.json
deleted file mode 100644
index 770629c6ecaee4f36ff34c4bac0b2439447dc6d3..0000000000000000000000000000000000000000
--- a/conversations/conv_013711.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "1069-133709",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1069-133709.flac |",
-      "real_speaker_id": "1069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.132271212908616,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1069-133709.flac |",
-      "real_speaker_id": "1069",
-      "position_frames": 79471
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.583184593223447,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-16012.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.183603311419127,
-      "end_time": 27.488802653422958,
-      "duration": 4.305199342003833,
-      "start_frame": 370937,
-      "duration_frames": 68883,
-      "overlap": false,
-      "utterance_id": "1069-133699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1069-133699.flac |",
-      "real_speaker_id": "1069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.669203449528098,
-      "end_time": 32.0,
-      "duration": 3.330796550471902,
-      "start_frame": 458707,
-      "duration_frames": 53292,
-      "overlap": false,
-      "utterance_id": "4423-16012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-16012.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 71478
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
-      "duration": 0.4758730158730159,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4423/cough/0059.wav",
-      "duration": 1.24,
-      "start_time": 10.824800920165925,
-      "speaker_id": "4423"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1069/cough/0046.wav",
-      "duration": 0.8909221376982082,
-      "start_time": 27.52852575402206,
-      "speaker_id": "1069"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4423/cough/0046.wav",
-      "duration": 0.31441092724882075,
-      "start_time": 31.685589072751178,
-      "speaker_id": "4423"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013727.json b/conversations/conv_013727.json
deleted file mode 100644
index f94a16c1de32256e073c647873f3a6aaf510642b..0000000000000000000000000000000000000000
--- a/conversations/conv_013727.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.493887875473806,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.871998283107321,
-      "duration": 3.871998283107321,
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-      "overlap": false,
-      "utterance_id": "1222-141174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-141174.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.235665877768802,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 0
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-      "start_time": 9.132600347771296,
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-      "overlap": false,
-      "utterance_id": "1222-133834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.25671346849899,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-141174.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 61951
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.358847959199,
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-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 67873
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.591993123094838,
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-      "utterance_id": "7302-86814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86814.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.189970618401315,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 98579
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1222/laugh/0003.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 8.721929401057233,
-      "speaker_id": "7552"
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-    {
-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 9.356864188139124,
-      "speaker_id": "1222"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7302/laugh/0068.wav",
-      "duration": 0.84,
-      "start_time": 27.452094532859775,
-      "speaker_id": "7302"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1222/laugh/0101.wav",
-      "duration": 1.28,
-      "start_time": 30.209896074514024,
-      "speaker_id": "1222"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013731.json b/conversations/conv_013731.json
deleted file mode 100644
index 495db22cac6c2b17ed8aed654925fd95c648c452..0000000000000000000000000000000000000000
--- a/conversations/conv_013731.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1152-126550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126550.flac |",
-      "real_speaker_id": "1152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.504180092213342,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-284429.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "1152-126550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126550.flac |",
-      "real_speaker_id": "1152",
-      "position_frames": 75922
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.842070253661333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-280362.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.626422584402672,
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-      "duration": 6.681173166554769,
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-      "utterance_id": "1152-126550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126550.flac |",
-      "real_speaker_id": "1152",
-      "position_frames": 165651
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.200891494663473,
-      "end_time": 32.0,
-      "duration": 1.7991085053365268,
-      "start_frame": 483214,
-      "duration_frames": 28785,
-      "overlap": false,
-      "utterance_id": "133-142924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-142924.flac |",
-      "real_speaker_id": "133",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
-      "duration": 12.759365079365079,
-      "start_time": 0.7985737806164555
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1152/laugh/0106.wav",
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-      "start_time": 13.15624094690046,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5471/laugh/0113.wav",
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-    {
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-      "speaker_id": "5471"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
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-      "speaker_id": "1152"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.6446548331127344,
-      "start_time": 29.278505516716468,
-      "speaker_id": "133"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013746.json b/conversations/conv_013746.json
deleted file mode 100644
index d54b9b0e7f700d0bdce988161a18d821d966d0a5..0000000000000000000000000000000000000000
--- a/conversations/conv_013746.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.4004021711610335,
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-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21634.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 86406
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287364.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 193790
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-  "paralinguistic_events": [
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-      "duration": 1.28,
-      "start_time": 4.877393488961617,
-      "speaker_id": "32"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8580/laugh/0039.wav",
-      "duration": 1.0,
-      "start_time": 22.54952662424961,
-      "speaker_id": "8580"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013750.json b/conversations/conv_013750.json
deleted file mode 100644
index 72eb5c3cb8afaff055101a910683f34ccc23e682..0000000000000000000000000000000000000000
--- a/conversations/conv_013750.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6538-81859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81859.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.518077286294002,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134819.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "3571-173554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173554.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.703773062973802,
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-      "utterance_id": "6538-81858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81858.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.52607102947331,
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-      "utterance_id": "1756-134820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134820.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.647789669813985,
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-      "utterance_id": "3571-173555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173555.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.371562713605506,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81859.flac |",
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-      "position_frames": 64959
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-  "background_events": [],
-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013766.json b/conversations/conv_013766.json
deleted file mode 100644
index 56653e92f15ece7460629e48de30f8e7f8d0af4c..0000000000000000000000000000000000000000
--- a/conversations/conv_013766.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
-      "position_frames": 56926
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-107479.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.4393418116975,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 69922
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
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-      "speaker_id": "589"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013767.json b/conversations/conv_013767.json
deleted file mode 100644
index 3716672d7bb3c95594aa6c62128da03abed82599..0000000000000000000000000000000000000000
--- a/conversations/conv_013767.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.268533162263193,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "4290-14526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
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-      "real_speaker_id": "5049",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1094-157768",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "5049",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157767.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
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-  "background_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013770.json b/conversations/conv_013770.json
deleted file mode 100644
index 015319716a971ec6adbf852ec5e7d3e0888e1826..0000000000000000000000000000000000000000
--- a/conversations/conv_013770.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6006-60480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60480.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_013777.json b/conversations/conv_013777.json
deleted file mode 100644
index 7c721fbc1e9badbf3bbe1b8832abc96e3280f4c9..0000000000000000000000000000000000000000
--- a/conversations/conv_013777.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "567",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_013785.json b/conversations/conv_013785.json
deleted file mode 100644
index c69ca136c21074466e6606951baa963848910d75..0000000000000000000000000000000000000000
--- a/conversations/conv_013785.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": "6281"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013788.json b/conversations/conv_013788.json
deleted file mode 100644
index 04e58864e49ba2ecd4f0cb87053987d77a8083ca..0000000000000000000000000000000000000000
--- a/conversations/conv_013788.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "4687",
-      "position_frames": 0
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-      "speaker_id": "4687"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013789.json b/conversations/conv_013789.json
deleted file mode 100644
index 0a7b40eae10748f0d198a079903dca7ed072e618..0000000000000000000000000000000000000000
--- a/conversations/conv_013789.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 64154
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.211668053955606,
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-      "utterance_id": "6548-96095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-96095.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6548/laugh/0048.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013793.json b/conversations/conv_013793.json
deleted file mode 100644
index 511f86aa2f62761b6f96b1132f1d830ea6476065..0000000000000000000000000000000000000000
--- a/conversations/conv_013793.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2240-148521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148521.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.140405871053326,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148521.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-57347.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.090670847810177,
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-      "duration": 2.909329152189823,
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-      "utterance_id": "3493-46712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 94311
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013802.json b/conversations/conv_013802.json
deleted file mode 100644
index 29c7cb90116a83a2c8f5c49b5367abfdf4b872db..0000000000000000000000000000000000000000
--- a/conversations/conv_013802.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
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-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-15217.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 106709
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-15217.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 166587
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-  ],
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013814.json b/conversations/conv_013814.json
deleted file mode 100644
index 432366c4ec9e8c4df9153af3316de38d5217c93f..0000000000000000000000000000000000000000
--- a/conversations/conv_013814.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.85808123274358,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "1425-139290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139290.flac |",
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-      "position_frames": 0
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-    {
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-  "paralinguistic_events": [
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-      "duration": 1.22,
-      "start_time": 28.824422516228545,
-      "speaker_id": "1425"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_013818.json b/conversations/conv_013818.json
deleted file mode 100644
index 6dfd732a5355f6d1f69d56b8132a35d4796ef9d4..0000000000000000000000000000000000000000
--- a/conversations/conv_013818.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3479-153286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153286.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 6.264963344722266,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 0
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-      "utterance_id": "3479-153280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153280.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.495512156019995,
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-      "overlap": false,
-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 64620
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.323786154803486,
-      "end_time": 26.262974928675824,
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-      "utterance_id": "3479-153280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153280.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 50547
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 135531
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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\ No newline at end of file
diff --git a/conversations/conv_013822.json b/conversations/conv_013822.json
deleted file mode 100644
index 44e265a3cd2c3b58ef22482710108639f8262b2e..0000000000000000000000000000000000000000
--- a/conversations/conv_013822.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-163403.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-103647.flac |",
-      "real_speaker_id": "6660",
-      "position_frames": 89696
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.14567398133282,
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-      "utterance_id": "3969-175415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-175415.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "duration": 1.12,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013823.json b/conversations/conv_013823.json
deleted file mode 100644
index 8ec06319018cfc3011e68ef059eccc676caf3239..0000000000000000000000000000000000000000
--- a/conversations/conv_013823.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 83185
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013825.json b/conversations/conv_013825.json
deleted file mode 100644
index 501507557fffefc2da59adfe37aec64053ffc70d..0000000000000000000000000000000000000000
--- a/conversations/conv_013825.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "duration": 1.2205510089154075,
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-      "overlap": false,
-      "utterance_id": "2574-128303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128303.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
-      "duration": 0.672108843537415,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/780/laugh/0011.wav",
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-      "start_time": 11.898556734186016,
-      "speaker_id": "780"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013833.json b/conversations/conv_013833.json
deleted file mode 100644
index e713af079ee14864995cf27d9977b707692005b0..0000000000000000000000000000000000000000
--- a/conversations/conv_013833.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.771448815081648,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7240-108066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-108066.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.492305406136306,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56788.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.849077073284988,
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-      "duration_frames": 54312,
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-      "utterance_id": "7009-2331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.564164700606176,
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-      "utterance_id": "6010-56787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56787.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6010-56787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56787.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 84809
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 54312
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "speaker_id": "6010"
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\ No newline at end of file
diff --git a/conversations/conv_013834.json b/conversations/conv_013834.json
deleted file mode 100644
index 15f2ee3cd22e931ceb9e6bf96ba45e0615cbf7ae..0000000000000000000000000000000000000000
--- a/conversations/conv_013834.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.293936312504933,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141595.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 84793
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6272-70171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70171.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.73220226214154,
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-      "utterance_id": "1621-141593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141593.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013838.json b/conversations/conv_013838.json
deleted file mode 100644
index 170d9ce9f5428dcc066209d0334ef5e6ce23cc73..0000000000000000000000000000000000000000
--- a/conversations/conv_013838.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-134615.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_013843.json b/conversations/conv_013843.json
deleted file mode 100644
index 6f6b7adc429e83c83048d1c12535bf811f20626f..0000000000000000000000000000000000000000
--- a/conversations/conv_013843.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122827.flac |",
-      "real_speaker_id": "16",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "speaker_id": "1069"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013855.json b/conversations/conv_013855.json
deleted file mode 100644
index 4e5b21ab1122d84a6018a62528e07ffc52aee134..0000000000000000000000000000000000000000
--- a/conversations/conv_013855.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5665-38051.flac |",
-      "real_speaker_id": "5665",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 6.263712605221368,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3665-8589.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3665-8587.flac |",
-      "real_speaker_id": "3665",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5665-38051.flac |",
-      "real_speaker_id": "5665",
-      "position_frames": 95078
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.18706237940387,
-      "end_time": 32.0,
-      "duration": 1.8129376205961307,
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-      "overlap": false,
-      "utterance_id": "3665-8589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3665-8589.flac |",
-      "real_speaker_id": "3665",
-      "position_frames": 78920
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "duration": 1.2,
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-      "speaker_id": "5665"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013858.json b/conversations/conv_013858.json
deleted file mode 100644
index 7e044abe821dec553cd6ae9eb44dcd5f40d0131f..0000000000000000000000000000000000000000
--- a/conversations/conv_013858.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5519-39481.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "1334",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3819.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-      "speaker_id": "4211"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013859.json b/conversations/conv_013859.json
deleted file mode 100644
index ef9c533738e254b9251f1eb5bfaa8273b58c679c..0000000000000000000000000000000000000000
--- a/conversations/conv_013859.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73974.flac |",
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-      "real_speaker_id": "1779",
-      "position_frames": 99768
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-    {
-      "segment_id": "seg0005",
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-      "speaker_id": "1710"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013863.json b/conversations/conv_013863.json
deleted file mode 100644
index 31603dea64b869f0e35a4b1e3b74a7f7dc44b931..0000000000000000000000000000000000000000
--- a/conversations/conv_013863.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.231109160088074,
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-  "segments": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_013864.json b/conversations/conv_013864.json
deleted file mode 100644
index 26308201878f3047c47272e3793b2384900abfe6..0000000000000000000000000000000000000000
--- a/conversations/conv_013864.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.702525744457333,
-  "num_speakers": 3,
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-      "real_speaker_id": "548",
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-      "speaker_id": 0,
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_013872.json b/conversations/conv_013872.json
deleted file mode 100644
index 747a240f58e175be00c48d0e1ff6ad56f722c874..0000000000000000000000000000000000000000
--- a/conversations/conv_013872.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_013875.json b/conversations/conv_013875.json
deleted file mode 100644
index b8e9b000616510cec99d55e32d57eb18cf831562..0000000000000000000000000000000000000000
--- a/conversations/conv_013875.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_013879.json b/conversations/conv_013879.json
deleted file mode 100644
index 378d645982efcb99f01c82c89acca26cbb9d14c5..0000000000000000000000000000000000000000
--- a/conversations/conv_013879.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_013880.json b/conversations/conv_013880.json
deleted file mode 100644
index ecb899333633cc10bbdcd316094c026e65fbe2d2..0000000000000000000000000000000000000000
--- a/conversations/conv_013880.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "248",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166420.flac |",
-      "real_speaker_id": "3070",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130652.flac |",
-      "real_speaker_id": "248",
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-      "segment_id": "seg0004",
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-      "start_time": 21.65593279310608,
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-      "utterance_id": "3070-166420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166420.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 82922
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130652.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 62004
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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\ No newline at end of file
diff --git a/conversations/conv_013896.json b/conversations/conv_013896.json
deleted file mode 100644
index 93399e608bc29ab186e0a75ac0748c17bba20624..0000000000000000000000000000000000000000
--- a/conversations/conv_013896.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "real_speaker_id": "9000",
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-    {
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-      "real_speaker_id": "6610",
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-    {
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-      "utterance_id": "9000-282380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282380.flac |",
-      "real_speaker_id": "9000",
-      "position_frames": 75654
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-  ],
-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013906.json b/conversations/conv_013906.json
deleted file mode 100644
index baa13d72c78c7750f3a894ede2b2a7d1ceefa38e..0000000000000000000000000000000000000000
--- a/conversations/conv_013906.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
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-      "real_speaker_id": "3118",
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-    {
-      "segment_id": "seg0004",
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-    {
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-  "background_events": [
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-      "event_class": "laugh",
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-      "start_time": 20.53619602763841,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013910.json b/conversations/conv_013910.json
deleted file mode 100644
index 2bc7be1b5b8876756ce058d5544dacb6bb0b135e..0000000000000000000000000000000000000000
--- a/conversations/conv_013910.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.175608051244307,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "6426",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_013921.json b/conversations/conv_013921.json
deleted file mode 100644
index 84d739ac3f581ad2380b9cd0258cd9e366fe9376..0000000000000000000000000000000000000000
--- a/conversations/conv_013921.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "3747-173589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.065684365306176,
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-      "real_speaker_id": "3547",
-      "position_frames": 123214
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_013926.json b/conversations/conv_013926.json
deleted file mode 100644
index d8eb5e4d26072cc81f62cd32e7d4ca9bb3382d2d..0000000000000000000000000000000000000000
--- a/conversations/conv_013926.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "position_frames": 83691
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_013930.json b/conversations/conv_013930.json
deleted file mode 100644
index 602705e679fd7ea6d22f05c34f4e0b3e2071b035..0000000000000000000000000000000000000000
--- a/conversations/conv_013930.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.48870817133628,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "speaker_id": "3045"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_013937.json b/conversations/conv_013937.json
deleted file mode 100644
index d25ce62b0eb158588898ef357fcd12fb3d231397..0000000000000000000000000000000000000000
--- a/conversations/conv_013937.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.22253969835188,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134820.flac |",
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-      "segment_id": "seg0002",
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-      "start_time": 13.11369162661926,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 106825
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-      "speaker_id": 0,
-      "start_time": 17.122701169803744,
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-      "utterance_id": "1756-134819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134819.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.377966549219828,
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-      "utterance_id": "637-127579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127579.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "1756-134819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134819.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 78324
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "start_time": 0,
-      "speaker_id": "3230"
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-}
\ No newline at end of file
diff --git a/conversations/conv_013947.json b/conversations/conv_013947.json
deleted file mode 100644
index 68d0452221803768e54b457ca89e03a354bf436a..0000000000000000000000000000000000000000
--- a/conversations/conv_013947.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.475786299868382,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "899-126232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126232.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 0
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-      "real_speaker_id": "899",
-      "position_frames": 79508
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126232.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 153511
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013951.json b/conversations/conv_013951.json
deleted file mode 100644
index 88556a2e99618ed27b8260b0b3780854a85490b0..0000000000000000000000000000000000000000
--- a/conversations/conv_013951.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_013960.json b/conversations/conv_013960.json
deleted file mode 100644
index 8ee278f8d4f4876f0d8521dbcf773dfef8c8a5e6..0000000000000000000000000000000000000000
--- a/conversations/conv_013960.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7337/laugh/0098.wav",
-      "duration": 0.8554778154137137,
-      "start_time": 27.86112730274688,
-      "speaker_id": "7337"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013966.json b/conversations/conv_013966.json
deleted file mode 100644
index 6f31acf633a5aae6942d1e7234803420037126e5..0000000000000000000000000000000000000000
--- a/conversations/conv_013966.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.058893866982573,
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-      "utterance_id": "7700-92925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.2245334727270505,
-      "end_time": 11.232836070888952,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-56168.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 12.61857455895075,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66278.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "7700-92919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92919.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.17154446000522,
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-      "duration": 3.9781650270835103,
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-      "duration_frames": 63650,
-      "overlap": true,
-      "utterance_id": "7700-92919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92919.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 87500
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.050989140401203,
-      "end_time": 32.0,
-      "duration": 2.949010859598797,
-      "start_frame": 464815,
-      "duration_frames": 47184,
-      "overlap": false,
-      "utterance_id": "7197-66277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 0.98,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7197/cough/0005.wav",
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-      "start_time": 31.646723413040235,
-      "speaker_id": "7197"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013967.json b/conversations/conv_013967.json
deleted file mode 100644
index b35335f97a8fdf1b407b20c748a97ca60177208e..0000000000000000000000000000000000000000
--- a/conversations/conv_013967.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.268799621426204,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "4807-26852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26852.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
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-      "real_speaker_id": "4807",
-      "position_frames": 57079
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-      "segment_id": "seg0003",
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-      "utterance_id": "4799-25950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25950.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.677500718265996,
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-      "real_speaker_id": "1444",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26852.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 149611
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013971.json b/conversations/conv_013971.json
deleted file mode 100644
index 24facbd12612fa1659f16f6f7a6370ccb4b09e84..0000000000000000000000000000000000000000
--- a/conversations/conv_013971.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-      "real_speaker_id": "1065",
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-}
\ No newline at end of file
diff --git a/conversations/conv_013976.json b/conversations/conv_013976.json
deleted file mode 100644
index febba21dc5ed79f76b5b961df34fd7f0213c836d..0000000000000000000000000000000000000000
--- a/conversations/conv_013976.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11517.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 16.011918852396896,
-      "start_time": 3.359900235345019
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
-      "duration": 0.8380952380952381,
-      "start_time": 13.543623060552509
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_013984.json b/conversations/conv_013984.json
deleted file mode 100644
index ea4decc379e58c416ee134e11306a7931617253f..0000000000000000000000000000000000000000
--- a/conversations/conv_013984.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.767667179608857,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.121820472803355,
-      "duration": 4.121820472803355,
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-      "overlap": false,
-      "utterance_id": "7220-77907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77907.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.226044949962298,
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-      "duration": 3.530497218724321,
-      "start_frame": 67616,
-      "duration_frames": 56487,
-      "overlap": false,
-      "utterance_id": "6590-64283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64283.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.6541424817510295,
-      "end_time": 12.774112022644406,
-      "duration": 5.119969540893376,
-      "start_frame": 122466,
-      "duration_frames": 81919,
-      "overlap": true,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.821887455281331,
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-      "duration": 3.440204758081761,
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-      "duration_frames": 55043,
-      "overlap": false,
-      "utterance_id": "7220-77907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77907.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 65949
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.959797436794357,
-      "end_time": 24.82995332313687,
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-      "duration_frames": 109922,
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-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 81919
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.260997384124295,
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-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 191841
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 15.06602254310246,
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7096/cough/0057.wav",
-      "duration": 0.7282512939320087,
-      "start_time": 6.754926207498523,
-      "speaker_id": "7096"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013988.json b/conversations/conv_013988.json
deleted file mode 100644
index 6edf4fa68d6311785817f60e4b4b23002bea06ca..0000000000000000000000000000000000000000
--- a/conversations/conv_013988.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.179054168671684,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2785-154284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-154284.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 6.52759120453159,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77346.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "duration_frames": 65549,
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-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.064798629565285,
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-      "duration": 6.012163632047129,
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-      "overlap": false,
-      "utterance_id": "6707-73028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-73028.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.772945645271832,
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-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 65549
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.20522777187043,
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-      "duration_frames": 63581,
-      "overlap": true,
-      "utterance_id": "2785-163322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-163322.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
-      "duration": 0.236984126984127,
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013989.json b/conversations/conv_013989.json
deleted file mode 100644
index 95782e91f78031b29b3911724ada1ebc5068e106..0000000000000000000000000000000000000000
--- a/conversations/conv_013989.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.13235769095194,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "737-123448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
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-    {
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-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8225-274375",
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-      "real_speaker_id": "8225",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "737-123448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 114443
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.286891590246995,
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-      "duration_frames": 93527,
-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 66228
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
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-      "start_time": 20.200548686557546,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "737"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013992.json b/conversations/conv_013992.json
deleted file mode 100644
index efb94dedf4eb8a87140b94c5942a47aeae64475a..0000000000000000000000000000000000000000
--- a/conversations/conv_013992.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "end_time": 6.432626649433747,
-      "duration": 6.432626649433747,
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-      "overlap": false,
-      "utterance_id": "93-124557",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-124557.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.836621249140082,
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-      "utterance_id": "8619-291381",
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-      "real_speaker_id": "8619",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8619-291381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291381.flac |",
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-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8619/laugh/0072.wav",
-      "duration": 0.7751708836517103,
-      "start_time": 31.22482911634829,
-      "speaker_id": "8619"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8619/cough/0091.wav",
-      "duration": 0.88,
-      "start_time": 28.794229803468525,
-      "speaker_id": "8619"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_013999.json b/conversations/conv_013999.json
deleted file mode 100644
index c513051f84141b7d1c1676476f11e8bd82a4b536..0000000000000000000000000000000000000000
--- a/conversations/conv_013999.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.826574916046873,
-      "duration": 3.826574916046873,
-      "start_frame": 0,
-      "duration_frames": 61225,
-      "overlap": false,
-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.982550585461137,
-      "end_time": 9.981531349676601,
-      "duration": 4.998980764215465,
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-      "duration_frames": 79983,
-      "overlap": false,
-      "utterance_id": "7360-86776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7360-86776.flac |",
-      "real_speaker_id": "7360",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.819568063013946,
-      "end_time": 16.869525148517226,
-      "duration": 6.049957085503278,
-      "start_frame": 173113,
-      "duration_frames": 96799,
-      "overlap": false,
-      "utterance_id": "6035-80463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-80463.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.654044145815515,
-      "end_time": 21.716607601174793,
-      "duration": 4.062563455359278,
-      "start_frame": 282464,
-      "duration_frames": 65001,
-      "overlap": false,
-      "utterance_id": "7360-86776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7360-86776.flac |",
-      "real_speaker_id": "7360",
-      "position_frames": 79983
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.53638521051207,
-      "end_time": 27.923693370949298,
-      "duration": 5.387308160437229,
-      "start_frame": 360582,
-      "duration_frames": 86196,
-      "overlap": false,
-      "utterance_id": "6035-80463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-80463.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 96799
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.304380686098874,
-      "end_time": 32.0,
-      "duration": 3.695619313901126,
-      "start_frame": 452870,
-      "duration_frames": 59129,
-      "overlap": false,
-      "utterance_id": "6035-58142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-58142.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 21.007881800573095,
-      "start_time": 0.44647937663284426
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-      "start_time": 17.065230241956165
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3779/laugh/0097.wav",
-      "duration": 0.7923275082091686,
-      "start_time": 4.029692191353151,
-      "speaker_id": "3779"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7360/laugh/0029.wav",
-      "duration": 1.28,
-      "start_time": 10.24399989446905,
-      "speaker_id": "7360"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6035/laugh/0071.wav",
-      "duration": 0.9386965167842856,
-      "start_time": 26.451729065930685,
-      "speaker_id": "6035"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014001.json b/conversations/conv_014001.json
deleted file mode 100644
index 80b00174581c14c6fb71d38e02091ed1426d8b8b..0000000000000000000000000000000000000000
--- a/conversations/conv_014001.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.057243977599297,
-      "duration": 5.057243977599297,
-      "start_frame": 0,
-      "duration_frames": 80915,
-      "overlap": false,
-      "utterance_id": "4806-26894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26894.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.295177727777276,
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-      "duration": 5.256906410399283,
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-      "duration_frames": 84110,
-      "overlap": false,
-      "utterance_id": "5620-40466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40466.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4806-26894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26894.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 80915
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.507754205504854,
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-      "duration_frames": 67985,
-      "overlap": false,
-      "utterance_id": "5620-40469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40469.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.112128607874247,
-      "end_time": 25.46690013021245,
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-      "start_frame": 321794,
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-      "overlap": false,
-      "utterance_id": "4806-26895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26895.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.632017943943715,
-      "end_time": 30.344300033479787,
-      "duration": 4.71228208953607,
-      "start_frame": 410112,
-      "duration_frames": 75396,
-      "overlap": false,
-      "utterance_id": "5620-40471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40471.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.190513732438745,
-      "end_time": 32.0,
-      "duration": 0.8094862675612546,
-      "start_frame": 499048,
-      "duration_frames": 12951,
-      "overlap": false,
-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
-      "duration": 12.759365079365079,
-      "start_time": 15.378996436776793
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4806/cough/0067.wav",
-      "duration": 0.8845663263495258,
-      "start_time": 0,
-      "speaker_id": "4806"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4806/laugh/0077.wav",
-      "duration": 1.22,
-      "start_time": 24.141794876840752,
-      "speaker_id": "4806"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014017.json b/conversations/conv_014017.json
deleted file mode 100644
index b4934bedbd97b7152f70210de2657c9d9f4194a4..0000000000000000000000000000000000000000
--- a/conversations/conv_014017.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 4.1430398110724935,
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-      "duration_frames": 66288,
-      "overlap": false,
-      "utterance_id": "4640-19187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19187.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.887449593156591,
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-      "overlap": false,
-      "utterance_id": "5002-72876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-72876.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.232375262891061,
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-      "duration_frames": 69259,
-      "overlap": false,
-      "utterance_id": "4640-19188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19188.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.204449004728595,
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-      "overlap": false,
-      "utterance_id": "4640-19187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19187.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 66288
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-72876.flac |",
-      "real_speaker_id": "5002",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.8228867354427,
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-      "overlap": false,
-      "utterance_id": "4640-19189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19189.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4640/laugh/0106.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "4640"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5002/cough/0087.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5002/cough/0077.wav",
-      "duration": 0.767153785110968,
-      "start_time": 26.24292325759709,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4640/laugh/0125.wav",
-      "duration": 1.24,
-      "start_time": 25.479410047067628,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4640/cough/0078.wav",
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-      "start_time": 28.253944870427283,
-      "speaker_id": "4640"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014021.json b/conversations/conv_014021.json
deleted file mode 100644
index dd80e92e3d1d1045fd7373ceb2a804cee3011de5..0000000000000000000000000000000000000000
--- a/conversations/conv_014021.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "end_time": 4.799140692459945,
-      "duration": 4.799140692459945,
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-      "utterance_id": "8356-284520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8356-284520.flac |",
-      "real_speaker_id": "8356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1116-132847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132847.flac |",
-      "real_speaker_id": "1116",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8356-284520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8356-284520.flac |",
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-      "position_frames": 76786
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1116-132847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132847.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 135576
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-    {
-      "segment_id": "seg0006",
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-      "end_time": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8356-240982.flac |",
-      "real_speaker_id": "8356",
-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_014026.json b/conversations/conv_014026.json
deleted file mode 100644
index fe1aad0c05dd9cef4db183a9d245db028810b25f..0000000000000000000000000000000000000000
--- a/conversations/conv_014026.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "5220-69519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-69519.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 6.431175557256492,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-25907.flac |",
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-      "utterance_id": "38-121024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/38-121024.flac |",
-      "real_speaker_id": "38",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 18.60970251610069,
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-      "utterance_id": "4172-25907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-25907.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 107793
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.661816166994672,
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-      "overlap": false,
-      "utterance_id": "38-121024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/38-121024.flac |",
-      "real_speaker_id": "38",
-      "position_frames": 77950
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.61324262985473,
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-      "duration": 3.3867573701452685,
-      "start_frame": 457811,
-      "duration_frames": 54188,
-      "overlap": false,
-      "utterance_id": "4172-25907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-25907.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 168509
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_5.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "38"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_014030.json b/conversations/conv_014030.json
deleted file mode 100644
index 4c5332f7cea2045312eef1b825142aad0afde067..0000000000000000000000000000000000000000
--- a/conversations/conv_014030.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8112-281888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8112-281888.flac |",
-      "real_speaker_id": "8112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.860465687652189,
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-      "utterance_id": "110-2",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8112-281888.flac |",
-      "real_speaker_id": "8112",
-      "position_frames": 71096
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-      "utterance_id": "110-2",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 68145
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8112-281888.flac |",
-      "real_speaker_id": "8112",
-      "position_frames": 125558
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "duration": 0.9993401690382591,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "speaker_id": "110"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8112/laugh/0093.wav",
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-      "start_time": 27.73316114005086,
-      "speaker_id": "8112"
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-      "event_class": "cough",
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-      "duration": 1.0055104109599318,
-      "start_time": 29.877065600670015,
-      "speaker_id": "1992"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014037.json b/conversations/conv_014037.json
deleted file mode 100644
index 9d76b02f3286d44acceaae060e9593c840db95f4..0000000000000000000000000000000000000000
--- a/conversations/conv_014037.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.386882538607857,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1827-143625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.6370661290369295,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130248.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.578030356263302,
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-      "utterance_id": "1750-142369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-142369.flac |",
-      "real_speaker_id": "1750",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.37415509466572,
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-      "overlap": false,
-      "utterance_id": "317-130248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130248.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 59340
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 98953
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.478908845291432,
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-      "overlap": false,
-      "utterance_id": "317-127219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-127219.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1827/cough/0018.wav",
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-      "start_time": 0,
-      "speaker_id": "1827"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1750/cough/0137.wav",
-      "duration": 1.3872267773440687,
-      "start_time": 9.142345432618264,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1827/cough/0023.wav",
-      "duration": 1.0754136883564849,
-      "start_time": 25.64460298476208,
-      "speaker_id": "1827"
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 26.780573357435973,
-      "speaker_id": "317"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014040.json b/conversations/conv_014040.json
deleted file mode 100644
index a4a9b4a6ebc4b6370dda66a2385503ce779cc49d..0000000000000000000000000000000000000000
--- a/conversations/conv_014040.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.507741788699093,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1772-135621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_014056.json b/conversations/conv_014056.json
deleted file mode 100644
index add8ba39d55ddd0f11068b723fbe56215a920ec0..0000000000000000000000000000000000000000
--- a/conversations/conv_014056.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-39672.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
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-      "real_speaker_id": "6548",
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\ No newline at end of file
diff --git a/conversations/conv_014060.json b/conversations/conv_014060.json
deleted file mode 100644
index 5ee4e4e7aadd88049b76d9357a72b8f80d0f71f6..0000000000000000000000000000000000000000
--- a/conversations/conv_014060.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124520.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014067.json b/conversations/conv_014067.json
deleted file mode 100644
index 3f4714c087d5df97db64f6c23567cdbc90bffdc3..0000000000000000000000000000000000000000
--- a/conversations/conv_014067.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "event_class": "laugh",
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-      "start_time": 29.160677078670858,
-      "speaker_id": "4748"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014071.json b/conversations/conv_014071.json
deleted file mode 100644
index 724f6f0c286c65559b8f83f1392b56bf225d9aec..0000000000000000000000000000000000000000
--- a/conversations/conv_014071.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.200056844228794,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4519-6171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 0
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-      "utterance_id": "4519-6171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 62004
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-      "speaker_id": 1,
-      "start_time": 15.072601597206852,
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-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 21.869881161382995,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 147170
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.837231842129086,
-      "end_time": 31.200056844228794,
-      "duration": 4.362825002099708,
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-      "duration_frames": 69805,
-      "overlap": false,
-      "utterance_id": "4836-26485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 56061
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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\ No newline at end of file
diff --git a/conversations/conv_014076.json b/conversations/conv_014076.json
deleted file mode 100644
index 30dd48f88a24b9a23dcf4c587f78a09e0f37fa33..0000000000000000000000000000000000000000
--- a/conversations/conv_014076.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-10683.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "3793-33942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-33942.flac |",
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-      "position_frames": 77210
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "speaker_id": "3793"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014083.json b/conversations/conv_014083.json
deleted file mode 100644
index 9d5cd78801d7d128ba9c5be996e1ce7aabc468d9..0000000000000000000000000000000000000000
--- a/conversations/conv_014083.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_014088.json b/conversations/conv_014088.json
deleted file mode 100644
index acf288bf16494e6a1188cd2cc17a3da5b6724982..0000000000000000000000000000000000000000
--- a/conversations/conv_014088.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "speaker_id": "915"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6484/laugh/0057.wav",
-      "duration": 0.92,
-      "start_time": 22.247743112474666,
-      "speaker_id": "6484"
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-      "event_class": "cough",
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-      "speaker_id": "8113"
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-}
\ No newline at end of file
diff --git a/conversations/conv_014095.json b/conversations/conv_014095.json
deleted file mode 100644
index bb85f77e7b07dbe0a6dd03ffc88bb05fc59c8525..0000000000000000000000000000000000000000
--- a/conversations/conv_014095.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "6713-56749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-64094.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 78039
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.4367611960739,
-      "end_time": 22.340145856607716,
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-      "overlap": false,
-      "utterance_id": "6943-85172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85172.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.53312623323074,
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-      "utterance_id": "8778-246972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246972.flac |",
-      "real_speaker_id": "8778",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.10789506480969,
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-      "duration": 2.8921049351903108,
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-      "utterance_id": "6713-56749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 160928
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014099.json b/conversations/conv_014099.json
deleted file mode 100644
index 3743ff8146d7c403cc692af1a66ce3d3c131f97b..0000000000000000000000000000000000000000
--- a/conversations/conv_014099.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8087-118174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118174.flac |",
-      "real_speaker_id": "8087",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118726.flac |",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1060-134451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.149448308943704,
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-      "duration": 2.850551691056296,
-      "start_frame": 466391,
-      "duration_frames": 45608,
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-      "utterance_id": "6773-76039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 90220
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "start_time": 30.6,
-      "speaker_id": "6773"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014105.json b/conversations/conv_014105.json
deleted file mode 100644
index 9e8aac3944224eb06ea4694025ed88f6162808b9..0000000000000000000000000000000000000000
--- a/conversations/conv_014105.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8441-281327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7480-93348.flac |",
-      "real_speaker_id": "7480",
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-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_014108.json b/conversations/conv_014108.json
deleted file mode 100644
index c4c9725b5ef5306f7d2e63de1bab082e932ea748..0000000000000000000000000000000000000000
--- a/conversations/conv_014108.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-134780.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246940.flac |",
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-      "speaker_id": "8465"
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\ No newline at end of file
diff --git a/conversations/conv_014109.json b/conversations/conv_014109.json
deleted file mode 100644
index 85f55414c00f917760d4fcdd2cbc8ebd682b0d6a..0000000000000000000000000000000000000000
--- a/conversations/conv_014109.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5480-41798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41798.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41798.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 74456
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-      "utterance_id": "6784-76152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76152.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.696391224254878,
-      "end_time": 23.141919641369885,
-      "duration": 4.445528417115006,
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-      "overlap": false,
-      "utterance_id": "2380-152158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.80052896773855,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76151.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.061064656355033,
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-      "utterance_id": "5480-41791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41791.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014113.json b/conversations/conv_014113.json
deleted file mode 100644
index 802737d85b8b0dc275e6427809ce4dd6fcdf340d..0000000000000000000000000000000000000000
--- a/conversations/conv_014113.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.5501599503876,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1264-135033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-135033.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-135033.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
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-      "position_frames": 60818
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-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 68159,
-      "overlap": false,
-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 169145
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "49"
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014118.json b/conversations/conv_014118.json
deleted file mode 100644
index 6ca0b4c75769a3c98864b8a107bf848dded834a8..0000000000000000000000000000000000000000
--- a/conversations/conv_014118.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "7051-259009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
-      "real_speaker_id": "7051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.9148714030138922,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-121911.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
-      "real_speaker_id": "7051",
-      "position_frames": 58303
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.083835686978153,
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-      "overlap": false,
-      "utterance_id": "128-134883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
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-      "segment_id": "seg0005",
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-      "utterance_id": "128-134884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "4088-158077",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/128/laugh/0015.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014122.json b/conversations/conv_014122.json
deleted file mode 100644
index cbea664d308881ada3fbadcc1c88b92a599c09ac..0000000000000000000000000000000000000000
--- a/conversations/conv_014122.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1296",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-138074.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 81791
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.79056657752648,
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-      "utterance_id": "1092-134568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134568.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
-      "duration": 0.672108843537415,
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1092/cough/0031.wav",
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-      "speaker_id": "1296"
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-}
\ No newline at end of file
diff --git a/conversations/conv_014125.json b/conversations/conv_014125.json
deleted file mode 100644
index 9247663ca87ebd932608eb56dea09ca4bd63aeae..0000000000000000000000000000000000000000
--- a/conversations/conv_014125.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.01285346623624,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2230-124587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-124587.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.6695486544767055,
-      "end_time": 6.926096971649185,
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-      "utterance_id": "380-129066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 6.074647892750775,
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-      "utterance_id": "2230-148550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-148550.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-295195.flac |",
-      "real_speaker_id": "8675",
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-      "start_time": 19.64355558798372,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129064.flac |",
-      "real_speaker_id": "380",
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-      "segment_id": "seg0005",
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-      "utterance_id": "2230-124587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-124587.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 49454
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 52104
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "event_class": "cough",
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-      "start_time": 30.82,
-      "speaker_id": "380"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014129.json b/conversations/conv_014129.json
deleted file mode 100644
index 3ece6caccd76e86e0df6d56442fad3e1ac0b2223..0000000000000000000000000000000000000000
--- a/conversations/conv_014129.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-161962.flac |",
-      "real_speaker_id": "681",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-161962.flac |",
-      "real_speaker_id": "681",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "6707-77351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77351.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.18781640341608,
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-      "utterance_id": "4278-13269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-13269.flac |",
-      "real_speaker_id": "4278",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014133.json b/conversations/conv_014133.json
deleted file mode 100644
index f65eb3a48ad553c6a1d720a32b62963265e5c3f8..0000000000000000000000000000000000000000
--- a/conversations/conv_014133.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7247/laugh/0002.wav",
-      "duration": 1.12,
-      "start_time": 0,
-      "speaker_id": "7247"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8259/cough/0024.wav",
-      "duration": 0.98401878948402,
-      "start_time": 9.71425242988233,
-      "speaker_id": "8259"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6227/laugh/0043.wav",
-      "duration": 1.08,
-      "start_time": 20.981140288353693,
-      "speaker_id": "6227"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014134.json b/conversations/conv_014134.json
deleted file mode 100644
index 8064b3b047ac381a88e088ca46b5d9a50f462e20..0000000000000000000000000000000000000000
--- a/conversations/conv_014134.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.73227702198775,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.768659312951,
-      "duration": 4.768659312951,
-      "start_frame": 0,
-      "duration_frames": 76298,
-      "overlap": false,
-      "utterance_id": "1110-134828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134828.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.600783054124331,
-      "end_time": 10.94007272583169,
-      "duration": 5.339289671707361,
-      "start_frame": 89612,
-      "duration_frames": 85428,
-      "overlap": false,
-      "utterance_id": "7148-7763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-7763.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.360086048117187,
-      "end_time": 16.137648695998138,
-      "duration": 4.777562647880951,
-      "start_frame": 181761,
-      "duration_frames": 76441,
-      "overlap": true,
-      "utterance_id": "1110-136055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-136055.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.097686670835568,
-      "end_time": 22.265145543984204,
-      "duration": 5.167458873148638,
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-      "duration_frames": 82679,
-      "overlap": false,
-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.0435671521601,
-      "end_time": 26.196757198160277,
-      "duration": 3.1531900460001756,
-      "start_frame": 368697,
-      "duration_frames": 50451,
-      "overlap": false,
-      "utterance_id": "1110-134829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134829.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.062601656358787,
-      "end_time": 31.73227702198775,
-      "duration": 4.669675365628961,
-      "start_frame": 433001,
-      "duration_frames": 74714,
-      "overlap": false,
-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 82679
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
-      "duration": 28.038543755086522,
-      "start_time": 1.3269391043111707
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_2.wav",
-      "duration": 0.686780045351474,
-      "start_time": 13.995101046361599
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 3.476954324327759,
-      "start_time": 2.3184967941022765
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1110/cough/0054.wav",
-      "duration": 0.5365776669914242,
-      "start_time": 1.7078084653508678,
-      "speaker_id": "1110"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2654/laugh/0081.wav",
-      "duration": 0.9676411474468076,
-      "start_time": 22.303911920619058,
-      "speaker_id": "2654"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2654/laugh/0083.wav",
-      "duration": 1.2,
-      "start_time": 29.04202109204355,
-      "speaker_id": "2654"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014144.json b/conversations/conv_014144.json
deleted file mode 100644
index 194c806142c4d85ef55ae1f0445d97e86f1405e5..0000000000000000000000000000000000000000
--- a/conversations/conv_014144.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.51045235897141,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.592321504662029,
-      "duration": 5.592321504662029,
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-      "duration_frames": 89477,
-      "overlap": false,
-      "utterance_id": "3440-171006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.237112786245824,
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-      "overlap": false,
-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.41861242511331,
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-      "duration_frames": 66793,
-      "overlap": true,
-      "utterance_id": "3440-171006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 89477
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.713044860519352,
-      "end_time": 19.52567757309905,
-      "duration": 4.812632712579698,
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-      "duration_frames": 77002,
-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.00346835406725,
-      "end_time": 23.574709019640895,
-      "duration": 3.5712406655736437,
-      "start_frame": 320055,
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-      "overlap": false,
-      "utterance_id": "3440-171006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 156270
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.861396494244,
-      "end_time": 29.04215307155829,
-      "duration": 5.1807565773142885,
-      "start_frame": 381782,
-      "duration_frames": 82892,
-      "overlap": false,
-      "utterance_id": "3340-170982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-170982.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.398144986507102,
-      "end_time": 31.51045235897141,
-      "duration": 2.1123073724643078,
-      "start_frame": 470370,
-      "duration_frames": 33796,
-      "overlap": true,
-      "utterance_id": "3340-169293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-169293.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
-      "duration": 0.19419501133786848,
-      "start_time": 18.255035199687104
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3440/laugh/0074.wav",
-      "duration": 0.6044823273470078,
-      "start_time": 5.864007052957322,
-      "speaker_id": "3440"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3440/cough/0079.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3440/laugh/0071.wav",
-      "duration": 1.5279597439416217,
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-    {
-      "event_class": "cough",
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-      "duration": 0.9060395771210441,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3440/laugh/0046.wav",
-      "duration": 1.0,
-      "start_time": 22.52695365719832,
-      "speaker_id": "3440"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3340/laugh/0034.wav",
-      "duration": 0.642638966019139,
-      "start_time": 30.244043053012245,
-      "speaker_id": "3340"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014148.json b/conversations/conv_014148.json
deleted file mode 100644
index 63c3db62411b3c79725d3a311449064f4144a9a7..0000000000000000000000000000000000000000
--- a/conversations/conv_014148.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4898-28461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-28461.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "56-1731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1731.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.37318976166053,
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-      "utterance_id": "56-1730",
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-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.24382808199411,
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-      "duration": 5.182885547370372,
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-      "duration_frames": 82926,
-      "overlap": false,
-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.622440085612386,
-      "end_time": 32.0,
-      "duration": 0.37755991438761427,
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-      "duration_frames": 6040,
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-      "utterance_id": "56-1731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1731.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 111226
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_11.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4898/cough/0080.wav",
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-      "speaker_id": "4898"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/56/laugh/0029.wav",
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014152.json b/conversations/conv_014152.json
deleted file mode 100644
index 6c410f4478bcaf4248f2a583b318c983bef37fc0..0000000000000000000000000000000000000000
--- a/conversations/conv_014152.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.440675071913354,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "245-122648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
-      "real_speaker_id": "245",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122647.flac |",
-      "real_speaker_id": "245",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "cough",
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-      "duration": 1.1090130050558786,
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-      "event_class": "laugh",
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-      "duration": 1.0280038636996118,
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-      "speaker_id": "245"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_014163.json b/conversations/conv_014163.json
deleted file mode 100644
index 9ca7a274a88321b06e5366a1a8cdde9486767a59..0000000000000000000000000000000000000000
--- a/conversations/conv_014163.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.040532529050854,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6735-284431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-284431.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.777483248414432,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-66412.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.893518218346262,
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-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.496819984676804,
-      "end_time": 20.059441775189622,
-      "duration": 4.562621790512818,
-      "start_frame": 247949,
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-      "overlap": false,
-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.74586939572604,
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-      "utterance_id": "458-126305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126305.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.177013853576074,
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-      "duration_frames": 77816,
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-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 73001
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-      "start_time": 14.53134857028825
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_014164.json b/conversations/conv_014164.json
deleted file mode 100644
index 713897f8847b69458cd7729785b1c739cdadcb67..0000000000000000000000000000000000000000
--- a/conversations/conv_014164.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6242-26941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.479695085750484,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132484.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
-      "position_frames": 70936
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "8346-244446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244446.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "8346-244445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244445.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.733625378876766,
-      "end_time": 32.0,
-      "duration": 2.2663746211232336,
-      "start_frame": 475738,
-      "duration_frames": 36261,
-      "overlap": false,
-      "utterance_id": "8346-244445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244445.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 86564
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8346/laugh/0023.wav",
-      "duration": 1.4,
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-    {
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-      "duration": 1.2,
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-      "speaker_id": "8346"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014168.json b/conversations/conv_014168.json
deleted file mode 100644
index cfeae14bd2d8cde9ddd5eb37e8bde4532c354db9..0000000000000000000000000000000000000000
--- a/conversations/conv_014168.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.484182547749034,
-      "duration": 6.484182547749034,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1280-143268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-143268.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.67528876514927,
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-      "utterance_id": "2911-15045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15045.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1280-135136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.51937771358211,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15045.flac |",
-      "real_speaker_id": "2911",
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-    {
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-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2911-12359",
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-      "position_frames": 0
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2911/cough/0078.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2911/laugh/0078.wav",
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-      "start_time": 31.03552533855753,
-      "speaker_id": "2911"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014172.json b/conversations/conv_014172.json
deleted file mode 100644
index 2044c60ee1a316653ac32d2dea724b67dfb74813..0000000000000000000000000000000000000000
--- a/conversations/conv_014172.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2122-149350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-19207.flac |",
-      "real_speaker_id": "4773",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134316.flac |",
-      "real_speaker_id": "1182",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.657365469121707,
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-      "utterance_id": "2122-149350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.441107369121013,
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-      "utterance_id": "1182-133396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-133396.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_14.wav",
-      "duration": 1.462149229470096,
-      "start_time": 2.384277891988399
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 5.053689056124752,
-      "speaker_id": "2122"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4773/laugh/0031.wav",
-      "duration": 1.68,
-      "start_time": 9.379732310263316,
-      "speaker_id": "4773"
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-      "event_class": "cough",
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-      "speaker_id": "4773"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2122/laugh/0016.wav",
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-      "speaker_id": "2122"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1182/laugh/0100.wav",
-      "duration": 1.1654243333505128,
-      "start_time": 27.24295112822089,
-      "speaker_id": "1182"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014175.json b/conversations/conv_014175.json
deleted file mode 100644
index 5201ab79c6f2ecb1f5d8985e89f2a276c7e9ec6b..0000000000000000000000000000000000000000
--- a/conversations/conv_014175.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1647-140649",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-140649.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.4460699043859515,
-      "end_time": 10.85572924763324,
-      "duration": 4.409659343247289,
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-      "duration_frames": 70554,
-      "overlap": false,
-      "utterance_id": "1647-140649",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-140649.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 94324
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1647-140649",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-140649.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 164878
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "6139-58868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58868.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.33919463687617,
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-      "duration_frames": 72704,
-      "overlap": false,
-      "utterance_id": "7794-295947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295947.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.889579132511304,
-      "end_time": 30.34797405060472,
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-      "overlap": false,
-      "utterance_id": "6139-58869",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58869.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.164044887100303,
-      "end_time": 32.0,
-      "duration": 0.8359551128996969,
-      "start_frame": 498624,
-      "duration_frames": 13375,
-      "overlap": false,
-      "utterance_id": "7794-295947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295947.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 72704
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1647/laugh/0066.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "7794"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014187.json b/conversations/conv_014187.json
deleted file mode 100644
index 2a3b189727163dfa49aa969b72fc410d4e87ecf5..0000000000000000000000000000000000000000
--- a/conversations/conv_014187.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "4742-74181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7205-64110.flac |",
-      "real_speaker_id": "7205",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.689655587750657,
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-      "utterance_id": "7205-64127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7205-64127.flac |",
-      "real_speaker_id": "7205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.03231042525689,
-      "end_time": 32.0,
-      "duration": 0.9676895747431082,
-      "start_frame": 496516,
-      "duration_frames": 15483,
-      "overlap": false,
-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 85619
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4742/laugh/0033.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4742/laugh/0041.wav",
-      "duration": 0.9958766901152238,
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-      "speaker_id": "4742"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/49/laugh/0031.wav",
-      "duration": 1.08,
-      "start_time": 18.105459073359985,
-      "speaker_id": "49"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/49/cough/0080.wav",
-      "duration": 0.9438878079950621,
-      "start_time": 31.033668507002474,
-      "speaker_id": "49"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014191.json b/conversations/conv_014191.json
deleted file mode 100644
index 02e2a116d034558793ec889f72417e7e61369602..0000000000000000000000000000000000000000
--- a/conversations/conv_014191.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.517857481210402,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.553859430916068,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6557-66462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-66462.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-66462.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 72861
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.139611749733792,
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-      "utterance_id": "1841-150351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-150351.flac |",
-      "real_speaker_id": "1841",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.746732160103484,
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-      "utterance_id": "52-121057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.54695464365487,
-      "end_time": 27.20361411195252,
-      "duration": 5.656659468297649,
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-      "duration_frames": 90506,
-      "overlap": false,
-      "utterance_id": "6557-65546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-65546.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.568000709965556,
-      "end_time": 31.517857481210402,
-      "duration": 3.9498567712448462,
-      "start_frame": 441088,
-      "duration_frames": 63197,
-      "overlap": false,
-      "utterance_id": "1841-150351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-150351.flac |",
-      "real_speaker_id": "1841",
-      "position_frames": 78077
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "start_time": 15.26873109580885
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
-      "duration": 0.6236734693877551,
-      "start_time": 19.16103514862493
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1841/laugh/0113.wav",
-      "duration": 1.44,
-      "start_time": 9.638694191439013,
-      "speaker_id": "1841"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014200.json b/conversations/conv_014200.json
deleted file mode 100644
index 67bfff71085ff795a84c4ed9dd69bac21d7f3533..0000000000000000000000000000000000000000
--- a/conversations/conv_014200.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
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-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-66279.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_014216.json b/conversations/conv_014216.json
deleted file mode 100644
index 76bceeacf79aa6a6b54da72f34bbe2f50eb3c1c3..0000000000000000000000000000000000000000
--- a/conversations/conv_014216.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8097-108005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-108005.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 0
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-      "start_time": 7.239741823097443,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-5042.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4438-48525.flac |",
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-      "utterance_id": "4438-48525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4438-48525.flac |",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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\ No newline at end of file
diff --git a/conversations/conv_014220.json b/conversations/conv_014220.json
deleted file mode 100644
index 2d77a1150fbe2d85db9b1faecefc251595dd6a6a..0000000000000000000000000000000000000000
--- a/conversations/conv_014220.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_014221.json b/conversations/conv_014221.json
deleted file mode 100644
index 5a6a8d27fde15336e7d9cdf26ea1e4ba84cea792..0000000000000000000000000000000000000000
--- a/conversations/conv_014221.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
-      "duration": 1.3702310414337227,
-      "start_time": 23.22499283799246
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1634/laugh/0019.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "1634"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7011/laugh/0065.wav",
-      "duration": 1.08,
-      "start_time": 12.793698740126283,
-      "speaker_id": "7011"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7011/laugh/0065.wav",
-      "duration": 1.08,
-      "start_time": 25.967716808449385,
-      "speaker_id": "7011"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7011/cough/0060.wav",
-      "duration": 0.9113915189661974,
-      "start_time": 23.48215417571852,
-      "speaker_id": "7011"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1634/laugh/0048.wav",
-      "duration": 1.1988793516360432,
-      "start_time": 30.62594775496756,
-      "speaker_id": "1634"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014236.json b/conversations/conv_014236.json
deleted file mode 100644
index d9a6b2a85afee4d9662bb76264c106ca342b2d37..0000000000000000000000000000000000000000
--- a/conversations/conv_014236.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.262905419969831,
-      "duration": 4.262905419969831,
-      "start_frame": 0,
-      "duration_frames": 68206,
-      "overlap": false,
-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.230383416787097,
-      "end_time": 10.864882186679898,
-      "duration": 5.634498769892801,
-      "start_frame": 83686,
-      "duration_frames": 90151,
-      "overlap": false,
-      "utterance_id": "6351-64714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.385505246318923,
-      "end_time": 14.771364248869585,
-      "duration": 3.3858590025506623,
-      "start_frame": 182168,
-      "duration_frames": 54173,
-      "overlap": false,
-      "utterance_id": "6351-64714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 90151
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.338453582066773,
-      "end_time": 19.94293116929246,
-      "duration": 4.604477587225688,
-      "start_frame": 245415,
-      "duration_frames": 73671,
-      "overlap": false,
-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 68206
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.171098035223903,
-      "end_time": 25.173947736260555,
-      "duration": 5.002849701036652,
-      "start_frame": 322737,
-      "duration_frames": 80045,
-      "overlap": false,
-      "utterance_id": "6351-64714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 144324
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.297210953018737,
-      "end_time": 28.480564670122444,
-      "duration": 3.183353717103707,
-      "start_frame": 404755,
-      "duration_frames": 50933,
-      "overlap": false,
-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 141877
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.040431531130594,
-      "end_time": 32.0,
-      "duration": 2.9595684688694064,
-      "start_frame": 464646,
-      "duration_frames": 47353,
-      "overlap": false,
-      "utterance_id": "6351-65787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-65787.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 20.380985801023808,
-      "start_time": 5.140435231521189
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
-      "duration": 1.8817457199314327,
-      "start_time": 16.031155514852856
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6351/laugh/0095.wav",
-      "duration": 1.24,
-      "start_time": 10.964394342688315,
-      "speaker_id": "6351"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6351/cough/0008.wav",
-      "duration": 0.6678311515452056,
-      "start_time": 10.965379240313707,
-      "speaker_id": "6351"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7107/laugh/0010.wav",
-      "duration": 0.5653114333027336,
-      "start_time": 16.45778198108977,
-      "speaker_id": "7107"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7107/laugh/0144.wav",
-      "duration": 0.7537159880528101,
-      "start_time": 24.45588196767578,
-      "speaker_id": "7107"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014241.json b/conversations/conv_014241.json
deleted file mode 100644
index eb410d7cd2104236e2ba931a72e1e48ffd18ad5a..0000000000000000000000000000000000000000
--- a/conversations/conv_014241.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.256008535488983,
-      "duration": 5.256008535488983,
-      "start_frame": 0,
-      "duration_frames": 84096,
-      "overlap": false,
-      "utterance_id": "1970-26100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-26100.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.434916309149966,
-      "end_time": 9.528465697948551,
-      "duration": 4.093549388798585,
-      "start_frame": 86958,
-      "duration_frames": 65496,
-      "overlap": true,
-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.819169498308248,
-      "end_time": 16.398919482423825,
-      "duration": 4.579749984115577,
-      "start_frame": 189106,
-      "duration_frames": 73275,
-      "overlap": false,
-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.907468623157165,
-      "end_time": 22.945910726890716,
-      "duration": 6.038442103733551,
-      "start_frame": 270519,
-      "duration_frames": 96615,
-      "overlap": false,
-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 65496
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.090296723632157,
-      "end_time": 28.60027881430602,
-      "duration": 5.509982090673862,
-      "start_frame": 369444,
-      "duration_frames": 88159,
-      "overlap": false,
-      "utterance_id": "1970-26100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-26100.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 84096
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.503160677229047,
-      "end_time": 32.0,
-      "duration": 2.4968393227709527,
-      "start_frame": 472050,
-      "duration_frames": 39949,
-      "overlap": false,
-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 73275
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
-      "duration": 16.318309725993114,
-      "start_time": 0.9136682915876807
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
-      "duration": 1.8297168277340625,
-      "start_time": 24.329164368006698
-    },
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
-      "duration": 0.09736961451247166,
-      "start_time": 31.495039407278718
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1970/cough/0073.wav",
-      "duration": 1.0180531610708916,
-      "start_time": 5.386882482042829,
-      "speaker_id": "1970"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3092/laugh/0000.wav",
-      "duration": 1.2,
-      "start_time": 8.018795334383114,
-      "speaker_id": "3092"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3092/cough/0001.wav",
-      "duration": 1.246269052799302,
-      "start_time": 9.67621363624064,
-      "speaker_id": "3092"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7733/laugh/0021.wav",
-      "duration": 1.52,
-      "start_time": 16.566385550544435,
-      "speaker_id": "7733"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3092/laugh/0100.wav",
-      "duration": 1.2951897055707604,
-      "start_time": 22.962226247676295,
-      "speaker_id": "3092"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014257.json b/conversations/conv_014257.json
deleted file mode 100644
index e7cb83f5031731328abcdbffaf2f36f82560c4fb..0000000000000000000000000000000000000000
--- a/conversations/conv_014257.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3288401194571886,
-      "duration": 3.3288401194571886,
-      "start_frame": 0,
-      "duration_frames": 53261,
-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 2.736532094960629,
-      "end_time": 7.382646663645298,
-      "duration": 4.646114568684669,
-      "start_frame": 43784,
-      "duration_frames": 74337,
-      "overlap": true,
-      "utterance_id": "2532-163402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-163402.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.445369215995536,
-      "end_time": 14.200512604699075,
-      "duration": 4.755143388703539,
-      "start_frame": 151125,
-      "duration_frames": 76082,
-      "overlap": false,
-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.327884799348883,
-      "end_time": 18.540656360005798,
-      "duration": 4.212771560656915,
-      "start_frame": 229246,
-      "duration_frames": 67404,
-      "overlap": false,
-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.878889362158677,
-      "end_time": 25.212528388530256,
-      "duration": 6.3336390263715785,
-      "start_frame": 302062,
-      "duration_frames": 101338,
-      "overlap": true,
-      "utterance_id": "2532-163402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-163402.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 74337
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.615367728424566,
-      "end_time": 32.0,
-      "duration": 5.384632271575434,
-      "start_frame": 425845,
-      "duration_frames": 86154,
-      "overlap": false,
-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 76082
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
-      "duration": 0.9175736961451247,
-      "start_time": 11.925968619143356
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/cough/0025.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "1001"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8015/laugh/0047.wav",
-      "duration": 1.48,
-      "start_time": 12.686541997821136,
-      "speaker_id": "8015"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8015/cough/0022.wav",
-      "duration": 1.32,
-      "start_time": 7.985425846338662,
-      "speaker_id": "8015"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/cough/0067.wav",
-      "duration": 0.92,
-      "start_time": 18.648415810016267,
-      "speaker_id": "1001"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2532/laugh/0127.wav",
-      "duration": 1.4,
-      "start_time": 25.347996525892764,
-      "speaker_id": "2532"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8015/laugh/0116.wav",
-      "duration": 0.8007264551108972,
-      "start_time": 25.693776801062217,
-      "speaker_id": "8015"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014261.json b/conversations/conv_014261.json
deleted file mode 100644
index b6e5926bba48ebc881d6c951fe978785a6ea4548..0000000000000000000000000000000000000000
--- a/conversations/conv_014261.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.859629133266889,
-      "duration": 4.859629133266889,
-      "start_frame": 0,
-      "duration_frames": 77754,
-      "overlap": false,
-      "utterance_id": "512-124520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124520.flac |",
-      "real_speaker_id": "512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "54",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "512-124520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124520.flac |",
-      "real_speaker_id": "512",
-      "position_frames": 77754
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "512-124549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124549.flac |",
-      "real_speaker_id": "512",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70974.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/512/cough/0006.wav",
-      "duration": 0.6160742066185438,
-      "start_time": 18.162838919082905,
-      "speaker_id": "512"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_014276.json b/conversations/conv_014276.json
deleted file mode 100644
index 33cca8e7831df1f5a3ca29627d10d5dc49e0cc8e..0000000000000000000000000000000000000000
--- a/conversations/conv_014276.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.452883416718933,
-      "duration": 6.452883416718933,
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-      "overlap": false,
-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.7831555626400615,
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-      "duration": 6.461858029854707,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    },
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-      "duration_frames": 91181,
-      "overlap": false,
-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 103246
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.44925256661429,
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-      "overlap": false,
-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 103389
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.939700599094916,
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-      "overlap": false,
-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 194427
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.724585194131244,
-      "end_time": 32.0,
-      "duration": 1.2754148058687562,
-      "start_frame": 491593,
-      "duration_frames": 20406,
-      "overlap": false,
-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 203141
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4290/laugh/0086.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1639/laugh/0094.wav",
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-      "start_time": 27.068092795310275,
-      "speaker_id": "1639"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014277.json b/conversations/conv_014277.json
deleted file mode 100644
index 3da1b24b5cb8bd48700fa1b42856d808fe48c1df..0000000000000000000000000000000000000000
--- a/conversations/conv_014277.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.677757188424387,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1564-142299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.301288486049339,
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-      "utterance_id": "2085-147968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147968.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "2085-147970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147970.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "duration_frames": 95885,
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-      "utterance_id": "1564-142299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 56604
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.167226039962053,
-      "end_time": 27.29518290704091,
-      "duration": 5.127956867078857,
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-      "duration_frames": 82047,
-      "overlap": false,
-      "utterance_id": "2085-147971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147971.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.40275843213194,
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-      "overlap": true,
-      "utterance_id": "2998-160955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2998-160955.flac |",
-      "real_speaker_id": "2998",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-      "speaker_id": "2085"
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-    {
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-    {
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-      "start_time": 26.52488478640826,
-      "speaker_id": "2998"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014282.json b/conversations/conv_014282.json
deleted file mode 100644
index 9da4ca56bc7b202801724fb95f44b59581b83b86..0000000000000000000000000000000000000000
--- a/conversations/conv_014282.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.0397765888083965,
-      "duration": 5.0397765888083965,
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-      "overlap": false,
-      "utterance_id": "445-123860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123860.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.571742064345971,
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-      "duration_frames": 75887,
-      "overlap": false,
-      "utterance_id": "445-123857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123857.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.412889027099697,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123857.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 75887
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.175508696137904,
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-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 57315
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.171207831711737,
-      "end_time": 32.0,
-      "duration": 2.8287921682882633,
-      "start_frame": 466739,
-      "duration_frames": 45260,
-      "overlap": false,
-      "utterance_id": "6555-397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-397.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377982.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/445/laugh/0047.wav",
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-      "start_time": 5.307556822700463,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1903/laugh/0028.wav",
-      "duration": 0.5904512834627915,
-      "start_time": 10.285402602206343,
-      "speaker_id": "1903"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 9.761281247172679,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6555/laugh/0029.wav",
-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "6555"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014294.json b/conversations/conv_014294.json
deleted file mode 100644
index 1a50778fe95a6d900f03aa2cf5c1ce6ec21e7d80..0000000000000000000000000000000000000000
--- a/conversations/conv_014294.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6765077302022835,
-      "duration": 3.6765077302022835,
-      "start_frame": 0,
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-      "segment_id": "seg0005",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8300/laugh/0104.wav",
-      "duration": 0.7155054786635441,
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-      "speaker_id": "3780"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014298.json b/conversations/conv_014298.json
deleted file mode 100644
index 2b60cbaacf5766db083f6f12b63ac9780487acb1..0000000000000000000000000000000000000000
--- a/conversations/conv_014298.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.936531491298567,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-160609.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-64719.flac |",
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-      "utterance_id": "2587-160609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-160609.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 57979
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-54186.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_014299.json b/conversations/conv_014299.json
deleted file mode 100644
index d304a2aa96d55c4bd0438e0ba9ab8db62e9e5737..0000000000000000000000000000000000000000
--- a/conversations/conv_014299.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58012.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "3097",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6080-58012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58012.flac |",
-      "real_speaker_id": "6080",
-      "position_frames": 96144
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131044.flac |",
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-      "segment_id": "seg0006",
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-      "position_frames": 75939
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_014304.json b/conversations/conv_014304.json
deleted file mode 100644
index 83c4e433520f5446e0fad5c5dd9f4aa2b74434b5..0000000000000000000000000000000000000000
--- a/conversations/conv_014304.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "228-131212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2407-7664",
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-      "real_speaker_id": "2407",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
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-    {
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-    {
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-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5712-48848",
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-    {
-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_014308.json b/conversations/conv_014308.json
deleted file mode 100644
index 8168fe901002d864ddf5947036702adeed5490d9..0000000000000000000000000000000000000000
--- a/conversations/conv_014308.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_014312.json b/conversations/conv_014312.json
deleted file mode 100644
index 73c3faa43436381e438832c4ea343102ef8de130..0000000000000000000000000000000000000000
--- a/conversations/conv_014312.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_014319.json b/conversations/conv_014319.json
deleted file mode 100644
index ea1b3ea437a3d4ce948a5eb598afec8d47fa1318..0000000000000000000000000000000000000000
--- a/conversations/conv_014319.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-179163.flac |",
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-      "real_speaker_id": "3290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-14909.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
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-      "real_speaker_id": "6135",
-      "position_frames": 0
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-      "utterance_id": "5471-280362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-280362.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_8.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_014324.json b/conversations/conv_014324.json
deleted file mode 100644
index dd05a9b705ae05f66f5b3ce3d9ec74c4e2837d83..0000000000000000000000000000000000000000
--- a/conversations/conv_014324.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.15596384219828,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8382-294774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8382-294774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 60975
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1898-145720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145720.flac |",
-      "real_speaker_id": "1898",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 147672
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "duration": 1.24,
-      "start_time": 23.47965478998904,
-      "speaker_id": "8382"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014328.json b/conversations/conv_014328.json
deleted file mode 100644
index a8e00dc8e3db8a7e7db76666abf2279c9a94480b..0000000000000000000000000000000000000000
--- a/conversations/conv_014328.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123506.flac |",
-      "real_speaker_id": "303",
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-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "303"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014332.json b/conversations/conv_014332.json
deleted file mode 100644
index 041f04d089930624d161e28ec8271cceab1a0a35..0000000000000000000000000000000000000000
--- a/conversations/conv_014332.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8066-290047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-290047.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/581-126957.flac |",
-      "real_speaker_id": "581",
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-      "utterance_id": "8066-114256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-114256.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/581-126957.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-290047.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 92220
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "581-126957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/581-126957.flac |",
-      "real_speaker_id": "581",
-      "position_frames": 165852
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "start_time": 31.04,
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-}
\ No newline at end of file
diff --git a/conversations/conv_014333.json b/conversations/conv_014333.json
deleted file mode 100644
index ffc3c82bccb8ed58899845ca22e19565cd9ca8ee..0000000000000000000000000000000000000000
--- a/conversations/conv_014333.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-129246.flac |",
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-      "utterance_id": "742-128033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.60913442256568,
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-      "duration": 5.390865577434319,
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-      "overlap": false,
-      "utterance_id": "742-128034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_014345.json b/conversations/conv_014345.json
deleted file mode 100644
index b249f7d736288fd2bd7c46cff5724856718b1972..0000000000000000000000000000000000000000
--- a/conversations/conv_014345.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.033781909585226,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "202-130622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.964542406679239,
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-      "utterance_id": "1498-140041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140041.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.116994970086665,
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-      "utterance_id": "4133-6541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.081288923764774,
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-      "duration": 5.60841132398496,
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-      "duration_frames": 89734,
-      "overlap": false,
-      "utterance_id": "202-130622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 104875
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "202-122857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-122857.flac |",
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "1498"
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-}
\ No newline at end of file
diff --git a/conversations/conv_014349.json b/conversations/conv_014349.json
deleted file mode 100644
index c612b8d5a19d4e202215c055b13aa2d702f48191..0000000000000000000000000000000000000000
--- a/conversations/conv_014349.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.251994087549533,
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_014353.json b/conversations/conv_014353.json
deleted file mode 100644
index 38f6bb4dd1889fffd9a3dc2e3e0b3085490f0857..0000000000000000000000000000000000000000
--- a/conversations/conv_014353.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131256.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_014358.json b/conversations/conv_014358.json
deleted file mode 100644
index 184a92bf1bbcb1cbb655d7ea5aa37dfc7a49e89f..0000000000000000000000000000000000000000
--- a/conversations/conv_014358.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "speaker_id": "984"
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-}
\ No newline at end of file
diff --git a/conversations/conv_014364.json b/conversations/conv_014364.json
deleted file mode 100644
index 8a0a1640172c7a4bbbbd8df220f3aed19a41949e..0000000000000000000000000000000000000000
--- a/conversations/conv_014364.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
-      "duration": 0.7175510204081633,
-      "start_time": 15.147372653471683
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8215/laugh/0097.wav",
-      "duration": 0.884192834280223,
-      "start_time": 25.4232707733868,
-      "speaker_id": "8215"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014365.json b/conversations/conv_014365.json
deleted file mode 100644
index 6d945b7cc0ec0ece18db8f0b11d1c1f224b1bb51..0000000000000000000000000000000000000000
--- a/conversations/conv_014365.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.765071533757542,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.9747729136867544,
-      "duration": 5.9747729136867544,
-      "start_frame": 0,
-      "duration_frames": 95596,
-      "overlap": false,
-      "utterance_id": "5951-57348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-57348.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.043412631397785,
-      "end_time": 11.999352898868008,
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-      "start_frame": 96694,
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-      "overlap": true,
-      "utterance_id": "6652-70974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70974.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.09048469914149,
-      "end_time": 16.75179177190948,
-      "duration": 3.6613070727679906,
-      "start_frame": 209447,
-      "duration_frames": 58580,
-      "overlap": false,
-      "utterance_id": "6652-70974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70974.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 95295
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.09436774306104,
-      "end_time": 21.285707069261022,
-      "duration": 4.1913393261999845,
-      "start_frame": 273509,
-      "duration_frames": 67061,
-      "overlap": false,
-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.60093156595546,
-      "end_time": 26.80345985285215,
-      "duration": 5.2025282868966904,
-      "start_frame": 345614,
-      "duration_frames": 83240,
-      "overlap": false,
-      "utterance_id": "19-227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.909264213670095,
-      "end_time": 31.765071533757542,
-      "duration": 4.855807320087447,
-      "start_frame": 430548,
-      "duration_frames": 77692,
-      "overlap": true,
-      "utterance_id": "5951-57348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-57348.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 95596
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/19/laugh/0076.wav",
-      "duration": 0.624927989622909,
-      "start_time": 20.797885227100448,
-      "speaker_id": "19"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014369.json b/conversations/conv_014369.json
deleted file mode 100644
index ad6b780633ce8d889bb2cfeb43a12ccee37b0e5b..0000000000000000000000000000000000000000
--- a/conversations/conv_014369.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.817005596767848,
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-      "utterance_id": "2238-121415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.297001132387427,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3268-59225.flac |",
-      "real_speaker_id": "3268",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.985442091696175,
-      "end_time": 24.163926029208866,
-      "duration": 5.178483937512691,
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-      "overlap": false,
-      "utterance_id": "2238-121413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121413.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.965358026939338,
-      "end_time": 28.011502871267094,
-      "duration": 3.0461448443277566,
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-      "duration_frames": 48738,
-      "overlap": false,
-      "utterance_id": "3268-59224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3268-59224.flac |",
-      "real_speaker_id": "3268",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.731845652036974,
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-      "duration": 3.2681543479630264,
-      "start_frame": 459709,
-      "duration_frames": 52290,
-      "overlap": false,
-      "utterance_id": "8193-116804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014373.json b/conversations/conv_014373.json
deleted file mode 100644
index a4b9d763e531e1d22dbdb26655a3a842ca46ba00..0000000000000000000000000000000000000000
--- a/conversations/conv_014373.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.6071055936282725,
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-      "utterance_id": "7802-104398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104398.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.092226499988401,
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-      "overlap": false,
-      "utterance_id": "1124-134775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-134775.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.156392214962686,
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-      "utterance_id": "7802-104398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104398.flac |",
-      "real_speaker_id": "7802",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 66699
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.678114746624622,
-      "end_time": 32.0,
-      "duration": 1.3218852533753775,
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-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
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-  "foreground_events": [
-    {
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7802/laugh/0036.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.18,
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-      "speaker_id": "3148"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014386.json b/conversations/conv_014386.json
deleted file mode 100644
index 75111953677f872498ef348ff71c215c1bee382c..0000000000000000000000000000000000000000
--- a/conversations/conv_014386.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.298784993774866,
-      "duration": 6.298784993774866,
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-      "overlap": false,
-      "utterance_id": "4629-19366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
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-      "start_time": 27.551805061441915,
-      "speaker_id": "4629"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014387.json b/conversations/conv_014387.json
deleted file mode 100644
index fa9dc44b7e43e46de39b8dd8df1c46ee5cacecb1..0000000000000000000000000000000000000000
--- a/conversations/conv_014387.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "559-126296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-126296.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.2572503951539487,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-174132.flac |",
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-      "real_speaker_id": "2694",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "3483-119637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-119637.flac |",
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-    },
-    {
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-      "speaker_id": 0,
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-      "duration_frames": 82800,
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-      "utterance_id": "559-126296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-126296.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 63947
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.34302886165816,
-      "end_time": 31.33798706424598,
-      "duration": 5.99495820258782,
-      "start_frame": 405488,
-      "duration_frames": 95919,
-      "overlap": false,
-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.539345326844288,
-      "end_time": 32.0,
-      "duration": 0.4606546731557124,
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-      "duration_frames": 7370,
-      "overlap": false,
-      "utterance_id": "559-289453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-289453.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
-      "duration": 2.8337728674202802,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3483/laugh/0086.wav",
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-      "start_time": 16.235434214158005,
-      "speaker_id": "3483"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014390.json b/conversations/conv_014390.json
deleted file mode 100644
index 1c1c5480e2ceff48889cf0755c706db8be34bb2f..0000000000000000000000000000000000000000
--- a/conversations/conv_014390.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1403-130575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-130575.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/895-136366.flac |",
-      "real_speaker_id": "895",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-130575.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 82732
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13260.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1403-130575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-130575.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 171252
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.128633892455692,
-      "end_time": 32.0,
-      "duration": 3.8713661075443078,
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-      "duration_frames": 61941,
-      "overlap": false,
-      "utterance_id": "3947-13260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13260.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 83820
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
-      "duration": 1.0369412074954987,
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-  "paralinguistic_events": [
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-      "duration": 0.88,
-      "start_time": 27.775837569750045,
-      "speaker_id": "1403"
-    },
-    {
-      "event_class": "laugh",
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-      "speaker_id": "3947"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014406.json b/conversations/conv_014406.json
deleted file mode 100644
index 34e74a38f0e434c07ed118f8e004ee1868668b0c..0000000000000000000000000000000000000000
--- a/conversations/conv_014406.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "1636-130501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
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-      "real_speaker_id": "1636",
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_014410.json b/conversations/conv_014410.json
deleted file mode 100644
index 577f31ddea910b1767b0c0add1eac8bbdba6aac8..0000000000000000000000000000000000000000
--- a/conversations/conv_014410.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127933.flac |",
-      "real_speaker_id": "921",
-      "position_frames": 107561
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
-      "duration": 1.6779719799759594,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_5.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/698/laugh/0053.wav",
-      "duration": 0.6170153641694295,
-      "start_time": 4.493894561597976,
-      "speaker_id": "698"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/921/laugh/0051.wav",
-      "duration": 0.8161233687134845,
-      "start_time": 9.311295272606621,
-      "speaker_id": "921"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/921/cough/0069.wav",
-      "duration": 0.88,
-      "start_time": 8.148090826170119,
-      "speaker_id": "921"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5810/laugh/0010.wav",
-      "duration": 1.24,
-      "start_time": 19.347891423444235,
-      "speaker_id": "5810"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014421.json b/conversations/conv_014421.json
deleted file mode 100644
index f422eb5b3ea6c58483cd837cabeba654e2ef8973..0000000000000000000000000000000000000000
--- a/conversations/conv_014421.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.222190707719051,
-      "duration": 5.222190707719051,
-      "start_frame": 0,
-      "duration_frames": 83555,
-      "overlap": false,
-      "utterance_id": "6550-65820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.498331336694986,
-      "end_time": 10.988454503294651,
-      "duration": 5.490123166599664,
-      "start_frame": 87973,
-      "duration_frames": 87841,
-      "overlap": false,
-      "utterance_id": "1116-137572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-137572.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.499793506221897,
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-      "overlap": false,
-      "utterance_id": "6550-65820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 83555
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.03982393695898,
-      "end_time": 23.255954287018444,
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-      "overlap": false,
-      "utterance_id": "1116-132847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132847.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.455207713929966,
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-      "duration_frames": 77249,
-      "overlap": false,
-      "utterance_id": "6550-53343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53343.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.33016564651026,
-      "end_time": 32.0,
-      "duration": 1.6698343534897404,
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-      "duration_frames": 26717,
-      "overlap": false,
-      "utterance_id": "1116-132847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132847.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 99458
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_7.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 1.2204958297706823,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6550/cough/0100.wav",
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-      "duration": 0.92,
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-      "speaker_id": "1116"
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-      "event_class": "cough",
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-      "start_time": 23.47616701528685,
-      "speaker_id": "6550"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014426.json b/conversations/conv_014426.json
deleted file mode 100644
index 5487ab930f49571aca4624748d2e9052d1a6facb..0000000000000000000000000000000000000000
--- a/conversations/conv_014426.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.809155226870004,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.91312569470931,
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-      "overlap": false,
-      "utterance_id": "157-121907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-121907.flac |",
-      "real_speaker_id": "157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.391857984528054,
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-      "overlap": false,
-      "utterance_id": "1079-128632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1079-128632.flac |",
-      "real_speaker_id": "1079",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.327991209749817,
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-      "overlap": false,
-      "utterance_id": "1264-129805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-129805.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.71146830074702,
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-      "utterance_id": "1079-128631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1079-128631.flac |",
-      "real_speaker_id": "1079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.238928672953605,
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-      "overlap": false,
-      "utterance_id": "157-126796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-126796.flac |",
-      "real_speaker_id": "157",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_15.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1079/laugh/0024.wav",
-      "duration": 1.28,
-      "start_time": 12.563484740337483,
-      "speaker_id": "1079"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "157"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014430.json b/conversations/conv_014430.json
deleted file mode 100644
index 6aa716e4a199626cdeb4fc4a1cc293d558b5fd7b..0000000000000000000000000000000000000000
--- a/conversations/conv_014430.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.412904054816394,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "816-2301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.426808658714232,
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-      "utterance_id": "8776-270778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
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-      "segment_id": "seg0002",
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-      "duration_frames": 73873,
-      "overlap": true,
-      "utterance_id": "5147-32135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32135.flac |",
-      "real_speaker_id": "5147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.756425730242135,
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-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.62215114537109,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32136.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 12.872218037406498,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.18,
-      "start_time": 12.698360019670748,
-      "speaker_id": "5147"
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-}
\ No newline at end of file
diff --git a/conversations/conv_014437.json b/conversations/conv_014437.json
deleted file mode 100644
index 3aa4f023beced4c3b046ff2616b368688420ce30..0000000000000000000000000000000000000000
--- a/conversations/conv_014437.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.690521788425198,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1695-142312",
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-    {
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-      "utterance_id": "1614-141486",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1695/cough/0091.wav",
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-      "start_time": 12.69498855758901,
-      "speaker_id": "1695"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1614/cough/0066.wav",
-      "duration": 0.40429268072927443,
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-      "speaker_id": "1614"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1695/laugh/0052.wav",
-      "duration": 1.56,
-      "start_time": 26.842519572373472,
-      "speaker_id": "1695"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014447.json b/conversations/conv_014447.json
deleted file mode 100644
index 80ed3f04802c63c02ddc17920a18b3180feb615f..0000000000000000000000000000000000000000
--- a/conversations/conv_014447.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.14666741473013,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.991594451526099,
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-      "overlap": false,
-      "utterance_id": "2104-75220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-75220.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.6744899935389,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "4243-14929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-14929.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 19.955153742693014,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-75220.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 111865
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.344203469917616,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2104-78253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78253.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "paralinguistic_events": [
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-      "start_time": 28.099947394716438,
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-}
\ No newline at end of file
diff --git a/conversations/conv_014451.json b/conversations/conv_014451.json
deleted file mode 100644
index 662a26dd21449113b02de1e5d3e0b0f1ec7623e8..0000000000000000000000000000000000000000
--- a/conversations/conv_014451.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-175357.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-185488.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-296084.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-175357.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 89593
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5005/laugh/0092.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014460.json b/conversations/conv_014460.json
deleted file mode 100644
index dfd0303f1951e102cf8191d5be386d7ce4d03834..0000000000000000000000000000000000000000
--- a/conversations/conv_014460.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6235-36641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6235-36641.flac |",
-      "real_speaker_id": "6235",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-36632.flac |",
-      "real_speaker_id": "6227",
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-    {
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-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
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-      "position_frames": 83839
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_014467.json b/conversations/conv_014467.json
deleted file mode 100644
index cf638616ba98fcbf1caf8e3103a49a3e4dbbc88b..0000000000000000000000000000000000000000
--- a/conversations/conv_014467.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-11254.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-11254.flac |",
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-    {
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4057/laugh/0088.wav",
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-      "speaker_id": "4057"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_014471.json b/conversations/conv_014471.json
deleted file mode 100644
index 8845bc45aa68ea2c7e8f41fb9315f77c0504010c..0000000000000000000000000000000000000000
--- a/conversations/conv_014471.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "149-125760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125760.flac |",
-      "real_speaker_id": "149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.9326521292912116,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-70998.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.26270353436898,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125750.flac |",
-      "real_speaker_id": "149",
-      "position_frames": 101256
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.92330042145793,
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-      "utterance_id": "4104-181012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-181012.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 29.101617437188562,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-72876.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "duration": 0.714795821852436,
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-      "speaker_id": "149"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014476.json b/conversations/conv_014476.json
deleted file mode 100644
index 867fb6ff29ec77ab79ec379f5723d11b85f18cc3..0000000000000000000000000000000000000000
--- a/conversations/conv_014476.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.72797125034884,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "8118-114476",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-114476.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8199-284020.flac |",
-      "real_speaker_id": "8199",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-268287.flac |",
-      "real_speaker_id": "8118",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8199-118869.flac |",
-      "real_speaker_id": "8199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.795264836829517,
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-      "utterance_id": "8118-268287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-268287.flac |",
-      "real_speaker_id": "8118",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Cat",
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-      "duration": 0.92,
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-      "speaker_id": "8118"
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-}
\ No newline at end of file
diff --git a/conversations/conv_014484.json b/conversations/conv_014484.json
deleted file mode 100644
index c9d99ecfc0cc1aefa36aacb0a0404abb3a762efd..0000000000000000000000000000000000000000
--- a/conversations/conv_014484.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
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-      "real_speaker_id": "6251",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 78139
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-141613.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.759448715361334,
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6251-93270.flac |",
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-      "position_frames": 169911
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_014488.json b/conversations/conv_014488.json
deleted file mode 100644
index fd17b7f330523dc6f42f39ca4a1d22f1e0d7d2d6..0000000000000000000000000000000000000000
--- a/conversations/conv_014488.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275127.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 0
-    },
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-      "real_speaker_id": "398",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275127.flac |",
-      "real_speaker_id": "8300",
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-      "real_speaker_id": "398",
-      "position_frames": 106275
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275127.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "398-123602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-123602.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_014492.json b/conversations/conv_014492.json
deleted file mode 100644
index c9f951926a18a72612fedc0ddaa0d52cd160152c..0000000000000000000000000000000000000000
--- a/conversations/conv_014492.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1124",
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\ No newline at end of file
diff --git a/conversations/conv_014499.json b/conversations/conv_014499.json
deleted file mode 100644
index ebee6e74e1ef60f809489443d555575749af7e45..0000000000000000000000000000000000000000
--- a/conversations/conv_014499.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.413750405593948,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-73961.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_014502.json b/conversations/conv_014502.json
deleted file mode 100644
index c890367158e85a8eb68ddadc4e3771fd1b2ab613..0000000000000000000000000000000000000000
--- a/conversations/conv_014502.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_014514.json b/conversations/conv_014514.json
deleted file mode 100644
index 1fcdc2526724d0df7b02813ded94dd52a386aef5..0000000000000000000000000000000000000000
--- a/conversations/conv_014514.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2133/cough/0071.wav",
-      "duration": 0.6104820552938379,
-      "start_time": 31.389517944706164,
-      "speaker_id": "2133"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014518.json b/conversations/conv_014518.json
deleted file mode 100644
index 23494e9dbc4ef30a1738d2954e72fcebebdaa506..0000000000000000000000000000000000000000
--- a/conversations/conv_014518.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.76025645974651,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.218838760672337,
-      "duration": 4.218838760672337,
-      "start_frame": 0,
-      "duration_frames": 67501,
-      "overlap": false,
-      "utterance_id": "2827-170438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.5723904781704166,
-      "end_time": 11.372756146500404,
-      "duration": 6.800365668329986,
-      "start_frame": 73158,
-      "duration_frames": 108805,
-      "overlap": true,
-      "utterance_id": "3641-6870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.198026545137267,
-      "end_time": 16.05681604350039,
-      "duration": 3.858789498363122,
-      "start_frame": 195168,
-      "duration_frames": 61740,
-      "overlap": false,
-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.922939964498635,
-      "end_time": 23.718542914708586,
-      "duration": 6.7956029502099495,
-      "start_frame": 270767,
-      "duration_frames": 108729,
-      "overlap": false,
-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 61740
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.95399776714414,
-      "end_time": 30.24813769123607,
-      "duration": 6.29413992409193,
-      "start_frame": 383263,
-      "duration_frames": 100706,
-      "overlap": false,
-      "utterance_id": "3641-6870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 108805
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.168650503964997,
-      "end_time": 31.76025645974651,
-      "duration": 1.5916059557815139,
-      "start_frame": 482698,
-      "duration_frames": 25465,
-      "overlap": true,
-      "utterance_id": "2827-170438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 67501
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 27.03233321888029,
-      "start_time": 1.2536309580649043
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_1.wav",
-      "duration": 3.1799942663389227,
-      "start_time": 22.97777896928387
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.3608096654664017,
-      "start_time": 17.189079487544934
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2827/laugh/0035.wav",
-      "duration": 0.8518243519240495,
-      "start_time": 4.444520124990884,
-      "speaker_id": "2827"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3641/laugh/0041.wav",
-      "duration": 1.56,
-      "start_time": 11.40225504211955,
-      "speaker_id": "3641"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2827/cough/0051.wav",
-      "duration": 0.5993447988257172,
-      "start_time": 29.47845784878598,
-      "speaker_id": "2827"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014522.json b/conversations/conv_014522.json
deleted file mode 100644
index 46abd26e1974df857ebc4b54f1cffbdc7155f139..0000000000000000000000000000000000000000
--- a/conversations/conv_014522.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.184882954402622,
-      "duration": 4.184882954402622,
-      "start_frame": 0,
-      "duration_frames": 66958,
-      "overlap": false,
-      "utterance_id": "8063-274116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274116.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.499008551822436,
-      "end_time": 9.637636700657072,
-      "duration": 5.138628148834637,
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-      "duration_frames": 82218,
-      "overlap": false,
-      "utterance_id": "7337-89742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-89742.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.220019369944875,
-      "end_time": 15.334385620574563,
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-      "duration_frames": 81829,
-      "overlap": false,
-      "utterance_id": "8063-274112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274112.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.061121987507867,
-      "end_time": 21.402435451244074,
-      "duration": 5.341313463736207,
-      "start_frame": 256977,
-      "duration_frames": 85461,
-      "overlap": false,
-      "utterance_id": "7337-92819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.508453246886695,
-      "end_time": 24.639265034247423,
-      "duration": 3.130811787360729,
-      "start_frame": 344135,
-      "duration_frames": 50092,
-      "overlap": false,
-      "utterance_id": "8063-274117",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274117.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.998969860137315,
-      "end_time": 29.624467273757645,
-      "duration": 4.62549741362033,
-      "start_frame": 399983,
-      "duration_frames": 74007,
-      "overlap": false,
-      "utterance_id": "7337-89742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-89742.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 82218
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.789480072074692,
-      "end_time": 32.0,
-      "duration": 2.210519927925308,
-      "start_frame": 476631,
-      "duration_frames": 35368,
-      "overlap": false,
-      "utterance_id": "8063-274112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274112.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 81829
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 9.001318377975739
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
-      "duration": 2.7489478730925803,
-      "start_time": 10.435900746656387
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
-      "duration": 0.16310657596371883,
-      "start_time": 6.930148708795042
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7337/laugh/0057.wav",
-      "duration": 0.565707010854947,
-      "start_time": 15.231843699879473,
-      "speaker_id": "7337"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7337/cough/0052.wav",
-      "duration": 1.2068097500757624,
-      "start_time": 21.476350232423563,
-      "speaker_id": "7337"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8063/laugh/0098.wav",
-      "duration": 1.06,
-      "start_time": 30.94,
-      "speaker_id": "8063"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014525.json b/conversations/conv_014525.json
deleted file mode 100644
index 4ec3d9c5ee859f9fcfd4f8160405b8cfeaa8294a..0000000000000000000000000000000000000000
--- a/conversations/conv_014525.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.549108515612381,
-      "duration": 3.549108515612381,
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-      "duration_frames": 56785,
-      "overlap": false,
-      "utterance_id": "1365-134825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134825.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6553.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.530555247778565,
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-      "overlap": false,
-      "utterance_id": "1365-134804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134804.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.25890453566418,
-      "end_time": 22.93067083570611,
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-      "duration_frames": 74748,
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-      "utterance_id": "3894-6553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6553.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 87055
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.50291580482006,
-      "end_time": 29.224888304902215,
-      "duration": 5.721972500082156,
-      "start_frame": 376046,
-      "duration_frames": 91551,
-      "overlap": false,
-      "utterance_id": "1365-134804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134804.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 96942
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.655134782291917,
-      "end_time": 32.0,
-      "duration": 2.344865217708083,
-      "start_frame": 474482,
-      "duration_frames": 37517,
-      "overlap": false,
-      "utterance_id": "6288-63101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63101.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
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-  "paralinguistic_events": [
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-      "start_time": 3.319699949132868,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3894/laugh/0020.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1365/cough/0015.wav",
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-      "start_time": 25.168714910366184,
-      "speaker_id": "1365"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014533.json b/conversations/conv_014533.json
deleted file mode 100644
index d62197dd7c42643bf3bdab0dd38696570d6d2caf..0000000000000000000000000000000000000000
--- a/conversations/conv_014533.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "5271-34506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34506.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6590-64285",
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-      "real_speaker_id": "6590",
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-      "segment_id": "seg0002",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34506.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 73062
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 27.581044449997115,
-      "speaker_id": "5271"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014534.json b/conversations/conv_014534.json
deleted file mode 100644
index 0fb009cef5526b14e1b40151330056b4c8a27ce7..0000000000000000000000000000000000000000
--- a/conversations/conv_014534.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1594-135914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 5.604861646619234,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 92943
-    },
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-      "speaker_id": 1,
-      "start_time": 17.986716878326007,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279592.flac |",
-      "real_speaker_id": "8164",
-      "position_frames": 80569
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3032-19361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.38145632322408,
-      "end_time": 32.0,
-      "duration": 0.6185436767759214,
-      "start_frame": 502103,
-      "duration_frames": 9896,
-      "overlap": false,
-      "utterance_id": "8164-279592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279592.flac |",
-      "real_speaker_id": "8164",
-      "position_frames": 186948
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "speaker_id": "8164"
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\ No newline at end of file
diff --git a/conversations/conv_014538.json b/conversations/conv_014538.json
deleted file mode 100644
index b0b97f3d5c98eca7e9b8e7d89f778d7feb86e3e7..0000000000000000000000000000000000000000
--- a/conversations/conv_014538.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-      "utterance_id": "1566-133291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-133291.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 0
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-      "real_speaker_id": "46",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-153036.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.80257278375744,
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-      "duration_frames": 55966,
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-      "utterance_id": "46-128001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 25.651037998907757,
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-      "utterance_id": "1566-133291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-133291.flac |",
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-      "position_frames": 81244
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014543.json b/conversations/conv_014543.json
deleted file mode 100644
index 767a3c20482bb71c6bf9be6c67889d96dc6f75a4..0000000000000000000000000000000000000000
--- a/conversations/conv_014543.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "557-129796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129796.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "4549",
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-      "position_frames": 0
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "4549"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014548.json b/conversations/conv_014548.json
deleted file mode 100644
index 42feab1ca2d87782bc9e792ebd8b242a0f429434..0000000000000000000000000000000000000000
--- a/conversations/conv_014548.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.354352674780955,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5697.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
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-      "event_class": "Dishes",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_014555.json b/conversations/conv_014555.json
deleted file mode 100644
index efd0e25a5776f69567d8f74750ef853c9476952f..0000000000000000000000000000000000000000
--- a/conversations/conv_014555.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "4973-24516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24516.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24515.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-143361.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24515.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 67731
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_014558.json b/conversations/conv_014558.json
deleted file mode 100644
index b8a3d554bfdc76f8978d9be00428ac0fefd8a846..0000000000000000000000000000000000000000
--- a/conversations/conv_014558.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "3440-171009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171009.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 0
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-      "real_speaker_id": "7199",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-283569.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "event_class": "cough",
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-      "duration": 1.48,
-      "start_time": 18.801184693420936,
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-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "8337"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014559.json b/conversations/conv_014559.json
deleted file mode 100644
index 4de25446c63249b93a3e8a7dc2a3167e1c8a445c..0000000000000000000000000000000000000000
--- a/conversations/conv_014559.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
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-      "position_frames": 0
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-      "position_frames": 74924
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-    {
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-      "real_speaker_id": "3172",
-      "position_frames": 168003
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "3235",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8838-298545",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014563.json b/conversations/conv_014563.json
deleted file mode 100644
index ef29cdc4836ab80f884b85c2e70dbeaa2a92695b..0000000000000000000000000000000000000000
--- a/conversations/conv_014563.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.798433341059628,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_014564.json b/conversations/conv_014564.json
deleted file mode 100644
index bc1f90b0b084c2470cc13c13009c36da3c6a89e6..0000000000000000000000000000000000000000
--- a/conversations/conv_014564.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "4442",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-91998.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "7241-90852",
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_014572.json b/conversations/conv_014572.json
deleted file mode 100644
index f835076ffef417ef6d150041e635ded6d0cdefb5..0000000000000000000000000000000000000000
--- a/conversations/conv_014572.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_014575.json b/conversations/conv_014575.json
deleted file mode 100644
index 21466c000b51a2000ea12f0edd4e122221a21193..0000000000000000000000000000000000000000
--- a/conversations/conv_014575.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": 1,
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-      "utterance_id": "3347-134420",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_014579.json b/conversations/conv_014579.json
deleted file mode 100644
index 9680a34b6e0fab5be0471bb0a891b98915cd4d8a..0000000000000000000000000000000000000000
--- a/conversations/conv_014579.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "55",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121068.flac |",
-      "real_speaker_id": "55",
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-  "background_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014580.json b/conversations/conv_014580.json
deleted file mode 100644
index 1c2475d0c8d13d99edfdc800caec15f3bfc08d71..0000000000000000000000000000000000000000
--- a/conversations/conv_014580.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "start_time": 3.7963596659973704,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
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-      "start_time": 8.069134246617999,
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-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 52761
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-      "speaker_id": 2,
-      "start_time": 14.31149508296488,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "3969",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_014596.json b/conversations/conv_014596.json
deleted file mode 100644
index d39146572660d68a6e3bb5c91505dbcdbcda7962..0000000000000000000000000000000000000000
--- a/conversations/conv_014596.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_014607.json b/conversations/conv_014607.json
deleted file mode 100644
index 8a85a7ae6e8b457e21978cd822e476d2c98a7ab0..0000000000000000000000000000000000000000
--- a/conversations/conv_014607.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "real_speaker_id": "2895",
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_014611.json b/conversations/conv_014611.json
deleted file mode 100644
index ebb729bff120cd0a77fa567d6ff79a232689335a..0000000000000000000000000000000000000000
--- a/conversations/conv_014611.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7713-106733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106733.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_014626.json b/conversations/conv_014626.json
deleted file mode 100644
index 3dee1e52ef9924a09f1cc65c396f948681599f9e..0000000000000000000000000000000000000000
--- a/conversations/conv_014626.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "7342",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-254918.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.98104846347602,
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-      "utterance_id": "6956-76046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6956-76046.flac |",
-      "real_speaker_id": "6956",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_014627.json b/conversations/conv_014627.json
deleted file mode 100644
index fb528fb37212bc9e4356b68679288b89700b7d5c..0000000000000000000000000000000000000000
--- a/conversations/conv_014627.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156117.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "2568",
-      "position_frames": 78696
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152825.flac |",
-      "real_speaker_id": "2254",
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\ No newline at end of file
diff --git a/conversations/conv_014631.json b/conversations/conv_014631.json
deleted file mode 100644
index 42a17c6035c6f07ef45db33504c9ec2509013516..0000000000000000000000000000000000000000
--- a/conversations/conv_014631.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7226-86965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168618.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2140-39822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-39822.flac |",
-      "real_speaker_id": "2140",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3656",
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-      "speaker_id": 2,
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-      "real_speaker_id": "2140",
-      "position_frames": 91838
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2140-160867",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-160867.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_014646.json b/conversations/conv_014646.json
deleted file mode 100644
index 2716e77ff00f87efc0ec53a4d8061064ac7d00ad..0000000000000000000000000000000000000000
--- a/conversations/conv_014646.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_014650.json b/conversations/conv_014650.json
deleted file mode 100644
index 200eca1bc83a6d909c058c0a12d0ba7db5ddb99b..0000000000000000000000000000000000000000
--- a/conversations/conv_014650.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7092-56730.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-145713.flac |",
-      "real_speaker_id": "1844",
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\ No newline at end of file
diff --git a/conversations/conv_014666.json b/conversations/conv_014666.json
deleted file mode 100644
index ce8e8c782f0f1d646791b69fbb42340147c76f32..0000000000000000000000000000000000000000
--- a/conversations/conv_014666.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 208909
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-      "segment_id": "seg0006",
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-      "start_time": 30.8,
-      "speaker_id": "8200"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014670.json b/conversations/conv_014670.json
deleted file mode 100644
index cee5af2bd54617dd044d0a30e638fdcd22cded00..0000000000000000000000000000000000000000
--- a/conversations/conv_014670.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6006",
-      "position_frames": 0
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-      "real_speaker_id": "6006",
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-      "position_frames": 89032
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-}
\ No newline at end of file
diff --git a/conversations/conv_014671.json b/conversations/conv_014671.json
deleted file mode 100644
index 17731af23f92b925e9a0ef27fe33cf71cf480f5e..0000000000000000000000000000000000000000
--- a/conversations/conv_014671.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
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-      "position_frames": 63082
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_014685.json b/conversations/conv_014685.json
deleted file mode 100644
index f047984483e531f19a160b2ba15225878685975f..0000000000000000000000000000000000000000
--- a/conversations/conv_014685.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.420363902891992,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164335.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_014689.json b/conversations/conv_014689.json
deleted file mode 100644
index c07c00e672304b8c0abf6f614691ad56cc96360e..0000000000000000000000000000000000000000
--- a/conversations/conv_014689.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-258250.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "5293",
-      "position_frames": 76956
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_014693.json b/conversations/conv_014693.json
deleted file mode 100644
index 98721ec557af7a695d986f5301f92de97d351ba9..0000000000000000000000000000000000000000
--- a/conversations/conv_014693.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "708-129393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
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-    {
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-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 26.37685931974923,
-      "speaker_id": "6065"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.1196821874450809,
-      "start_time": 25.659208026988555,
-      "speaker_id": "708"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014703.json b/conversations/conv_014703.json
deleted file mode 100644
index 3cd72911769c4e331677011cc18057bec0d2ff3b..0000000000000000000000000000000000000000
--- a/conversations/conv_014703.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.458336701591797,
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-      "overlap": false,
-      "utterance_id": "2754-161902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2754-161902.flac |",
-      "real_speaker_id": "2754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.319015226728933,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58196.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2754-161905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2754-161905.flac |",
-      "real_speaker_id": "2754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.404508613998225,
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-      "duration": 3.2220705581726903,
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-      "duration_frames": 51553,
-      "overlap": false,
-      "utterance_id": "6106-58195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58195.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.4479192736876,
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-      "duration_frames": 105271,
-      "overlap": false,
-      "utterance_id": "2544-27475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-27475.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.322037488769986,
-      "end_time": 32.0,
-      "duration": 2.677962511230014,
-      "start_frame": 469152,
-      "duration_frames": 42847,
-      "overlap": false,
-      "utterance_id": "2754-161889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2754-161889.flac |",
-      "real_speaker_id": "2754",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "start_time": 29.203196611793054,
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "2754"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014708.json b/conversations/conv_014708.json
deleted file mode 100644
index 2847d766d67a4cd83d88dc7e348ce64d46776ee7..0000000000000000000000000000000000000000
--- a/conversations/conv_014708.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2208-10076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
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-    {
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-      "start_time": 4.844821292216051,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140047.flac |",
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-      "position_frames": 0
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-      "utterance_id": "3307-145145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145145.flac |",
-      "real_speaker_id": "3307",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.328938165526438,
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-      "utterance_id": "2208-11020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.580737885821172,
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-      "utterance_id": "1553-140048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140048.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.897539289439347,
-      "end_time": 32.0,
-      "duration": 5.102460710560653,
-      "start_frame": 430360,
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-      "overlap": false,
-      "utterance_id": "3307-145138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145138.flac |",
-      "real_speaker_id": "3307",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_2.wav",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.32,
-      "start_time": 12.938574394141506,
-      "speaker_id": "2208"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014715.json b/conversations/conv_014715.json
deleted file mode 100644
index 8a0b012cab1726c9ce8438222c725ea729563565..0000000000000000000000000000000000000000
--- a/conversations/conv_014715.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.201257397949117,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "5750-100289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-100289.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "7389-175357",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.26259920719654,
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-      "overlap": true,
-      "utterance_id": "7392-94500",
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-      "real_speaker_id": "7392",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014719.json b/conversations/conv_014719.json
deleted file mode 100644
index eaf9e78c0d911cae66c5a1a723934bc8bb881850..0000000000000000000000000000000000000000
--- a/conversations/conv_014719.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5386-8684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-8684.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
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-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_014723.json b/conversations/conv_014723.json
deleted file mode 100644
index 62dc9da4f38119d221bb2a28c4d81cfa704c2923..0000000000000000000000000000000000000000
--- a/conversations/conv_014723.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139707.flac |",
-      "real_speaker_id": "1629",
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\ No newline at end of file
diff --git a/conversations/conv_014734.json b/conversations/conv_014734.json
deleted file mode 100644
index a03c148125bff278e10dc42060ddd105c38619e6..0000000000000000000000000000000000000000
--- a/conversations/conv_014734.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2582",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123500.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.79254392994052,
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-      "utterance_id": "7492-105653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-105653.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_014735.json b/conversations/conv_014735.json
deleted file mode 100644
index 4e8462e4ebf57b2bf22deebde856c2bc78f49ac5..0000000000000000000000000000000000000000
--- a/conversations/conv_014735.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.697616814651994,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28245.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28245.flac |",
-      "real_speaker_id": "4955",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014739.json b/conversations/conv_014739.json
deleted file mode 100644
index 84812d1253869208754ed0bbfc31427825da75c1..0000000000000000000000000000000000000000
--- a/conversations/conv_014739.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_014742.json b/conversations/conv_014742.json
deleted file mode 100644
index ce9c9ecdd32811996b8a5c73ffe243c3f26158de..0000000000000000000000000000000000000000
--- a/conversations/conv_014742.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.580621461093475,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_014749.json b/conversations/conv_014749.json
deleted file mode 100644
index 951c4fbcd614122435b12b3c39f40eb18ee50ab7..0000000000000000000000000000000000000000
--- a/conversations/conv_014749.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "utterance_id": "8197-278214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278214.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014754.json b/conversations/conv_014754.json
deleted file mode 100644
index b15e182574810caa9b9e8cb31407fc8baec5a05d..0000000000000000000000000000000000000000
--- a/conversations/conv_014754.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3125/laugh/0027.wav",
-      "duration": 1.44,
-      "start_time": 21.81787147316778,
-      "speaker_id": "3125"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014758.json b/conversations/conv_014758.json
deleted file mode 100644
index a2edfcc4ad4302f3344f1f0584cadb76e3cb4173..0000000000000000000000000000000000000000
--- a/conversations/conv_014758.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.056168145886199,
-      "duration": 5.056168145886199,
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-      "overlap": false,
-      "utterance_id": "3196-151981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.421481077974446,
-      "end_time": 9.6592767341822,
-      "duration": 4.237795656207754,
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-      "utterance_id": "296-141721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.004274948135038,
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-      "duration_frames": 92902,
-      "overlap": true,
-      "utterance_id": "3196-151981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 80898
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.251521140776326,
-      "end_time": 22.295138087241632,
-      "duration": 5.043616946465308,
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-      "duration_frames": 80697,
-      "overlap": false,
-      "utterance_id": "296-142727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-142727.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.206211344318163,
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-      "utterance_id": "3196-151981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 173800
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.215392638024195,
-      "end_time": 32.0,
-      "duration": 3.784607361975805,
-      "start_frame": 451446,
-      "duration_frames": 60553,
-      "overlap": false,
-      "utterance_id": "7012-82949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7012-82949.flac |",
-      "real_speaker_id": "7012",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
-      "start_time": 3.463588369191446
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.5866296944580363,
-      "start_time": 6.155044013859537
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_014762.json b/conversations/conv_014762.json
deleted file mode 100644
index effbe8f0a1a77fe07dbc31e9e3b8d31fa7c091fc..0000000000000000000000000000000000000000
--- a/conversations/conv_014762.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.09526831509321,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.072448761600358,
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-      "overlap": false,
-      "utterance_id": "101-126859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126859.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.809451129121182,
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-      "duration": 3.363983153169289,
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-      "utterance_id": "6346-60781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6346-60781.flac |",
-      "real_speaker_id": "6346",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.45260009972834,
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-      "duration_frames": 62764,
-      "overlap": false,
-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.582427734528727,
-      "end_time": 18.91441024913521,
-      "duration": 4.331982514606481,
-      "start_frame": 233318,
-      "duration_frames": 69311,
-      "overlap": false,
-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 62764
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.612410017093104,
-      "end_time": 24.884489085310662,
-      "duration": 5.272079068217557,
-      "start_frame": 313798,
-      "duration_frames": 84353,
-      "overlap": false,
-      "utterance_id": "6346-60781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6346-60781.flac |",
-      "real_speaker_id": "6346",
-      "position_frames": 53823
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.389243049449306,
-      "end_time": 31.09526831509321,
-      "duration": 4.706025265643905,
-      "start_frame": 422227,
-      "duration_frames": 75296,
-      "overlap": false,
-      "utterance_id": "101-126860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126860.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 1.369498636379356,
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6346/laugh/0018.wav",
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-      "speaker_id": "6346"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/101/laugh/0016.wav",
-      "duration": 1.0468320549827965,
-      "start_time": 19.07291643001652,
-      "speaker_id": "101"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/101/laugh/0018.wav",
-      "duration": 1.12,
-      "start_time": 29.631467534403466,
-      "speaker_id": "101"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014763.json b/conversations/conv_014763.json
deleted file mode 100644
index 9b5f9ab2eab9dab5f479c5bce027e1317aba1126..0000000000000000000000000000000000000000
--- a/conversations/conv_014763.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.854839201610124,
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-      "overlap": false,
-      "utterance_id": "93-123172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-123172.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.2001297446372945,
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-      "duration": 6.1456399699150825,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132272.flac |",
-      "real_speaker_id": "764",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.789498488505776,
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-      "duration": 5.594098152772552,
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-      "duration_frames": 89505,
-      "overlap": true,
-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.527503955974495,
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-      "duration_frames": 98279,
-      "overlap": false,
-      "utterance_id": "93-126208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-126208.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.351671930418476,
-      "end_time": 29.524175835483696,
-      "duration": 4.17250390506522,
-      "start_frame": 405626,
-      "duration_frames": 66760,
-      "overlap": false,
-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 89505
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.828040641619104,
-      "end_time": 32.0,
-      "duration": 1.1719593583808958,
-      "start_frame": 493248,
-      "duration_frames": 18751,
-      "overlap": false,
-      "utterance_id": "93-123172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-123172.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 77677
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/93/cough/0068.wav",
-      "duration": 1.0215704166928692,
-      "start_time": 0,
-      "speaker_id": "93"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7313/cough/0050.wav",
-      "duration": 0.8454574891015989,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7313/laugh/0073.wav",
-      "duration": 0.8579636721485439,
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-      "speaker_id": "7313"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014774.json b/conversations/conv_014774.json
deleted file mode 100644
index 0f3cf1ed0c0f1ccdc220f75555d90c70fa40707c..0000000000000000000000000000000000000000
--- a/conversations/conv_014774.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.785908647654313,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.519410691189465,
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-      "start_frame": 0,
-      "duration_frames": 72310,
-      "overlap": false,
-      "utterance_id": "4434-73958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73958.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.69625012035349,
-      "end_time": 9.072249782789221,
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-      "duration_frames": 70015,
-      "overlap": true,
-      "utterance_id": "5340-8682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8682.flac |",
-      "real_speaker_id": "5340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.504505441462154,
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-      "duration": 4.541866338082171,
-      "start_frame": 168072,
-      "duration_frames": 72669,
-      "overlap": true,
-      "utterance_id": "5340-8682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8682.flac |",
-      "real_speaker_id": "5340",
-      "position_frames": 70015
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.14681442153659,
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-      "utterance_id": "4434-73958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73958.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 72310
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8682.flac |",
-      "real_speaker_id": "5340",
-      "position_frames": 142684
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.0966947088977,
-      "end_time": 31.785908647654313,
-      "duration": 3.6892139387566125,
-      "start_frame": 449547,
-      "duration_frames": 59027,
-      "overlap": true,
-      "utterance_id": "4434-73958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73958.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 147573
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4434/laugh/0105.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5340/laugh/0101.wav",
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-      "start_time": 9.77487287208416,
-      "speaker_id": "5340"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5340/cough/0054.wav",
-      "duration": 0.7682405508465471,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5340/laugh/0069.wav",
-      "duration": 0.7536674513553236,
-      "start_time": 26.75873242187883,
-      "speaker_id": "5340"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014778.json b/conversations/conv_014778.json
deleted file mode 100644
index 0baaf4a12fe88560c1de8df6806b82465ab2c54d..0000000000000000000000000000000000000000
--- a/conversations/conv_014778.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.74696003051921,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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\ No newline at end of file
diff --git a/conversations/conv_014781.json b/conversations/conv_014781.json
deleted file mode 100644
index 80e572c023825120c459f8e04113896e379dcfeb..0000000000000000000000000000000000000000
--- a/conversations/conv_014781.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_014797.json b/conversations/conv_014797.json
deleted file mode 100644
index bdaf7b26963bea54f067b06daf18167b993bdad0..0000000000000000000000000000000000000000
--- a/conversations/conv_014797.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_014806.json b/conversations/conv_014806.json
deleted file mode 100644
index 9bafc5977d55aae42a0b7ffcacd21cb551f974c7..0000000000000000000000000000000000000000
--- a/conversations/conv_014806.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124147.flac |",
-      "real_speaker_id": "322",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3079/cough/0006.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "322"
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-}
\ No newline at end of file
diff --git a/conversations/conv_014810.json b/conversations/conv_014810.json
deleted file mode 100644
index c281a90eb0a3398fdc3cefb39737f68bea327cbd..0000000000000000000000000000000000000000
--- a/conversations/conv_014810.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204974.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.685980451448332,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "5198-204975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204975.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.998257381246162,
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-      "duration": 3.9949294361692513,
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 88725
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.9965898387113,
-      "end_time": 32.0,
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-      "utterance_id": "8183-118128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8183-118128.flac |",
-      "real_speaker_id": "8183",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_014821.json b/conversations/conv_014821.json
deleted file mode 100644
index 3575570cdf9aa8d4ecdc5cc037f36fe02cd53365..0000000000000000000000000000000000000000
--- a/conversations/conv_014821.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79287.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.62254995319145,
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-}
\ No newline at end of file
diff --git a/conversations/conv_014826.json b/conversations/conv_014826.json
deleted file mode 100644
index 4b3f6236e9f4320d312cbcbafeedfc7e8ee11f77..0000000000000000000000000000000000000000
--- a/conversations/conv_014826.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76579.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67200.flac |",
-      "real_speaker_id": "7134",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67200.flac |",
-      "real_speaker_id": "7134",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67200.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 173011
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6954-76579",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-136983.flac |",
-      "real_speaker_id": "1283",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014830.json b/conversations/conv_014830.json
deleted file mode 100644
index e3513bfc80b361954f0254120551bd41fa2e2147..0000000000000000000000000000000000000000
--- a/conversations/conv_014830.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "6687-119386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119386.flac |",
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-      "utterance_id": "7337-89742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-89742.flac |",
-      "real_speaker_id": "7337",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.201174153659878,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 64407
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_014837.json b/conversations/conv_014837.json
deleted file mode 100644
index c6de2b7aa4f18d2bb2ec07ed8fca14cee6d4deed..0000000000000000000000000000000000000000
--- a/conversations/conv_014837.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.9831294862046,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
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-      "speaker_id": 0,
-      "start_time": 16.712853497686364,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 80940
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 55954
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.7553561486706,
-      "end_time": 32.0,
-      "duration": 3.2446438513294,
-      "start_frame": 460085,
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-      "overlap": false,
-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 160459
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
-      "duration": 0.6496145124716554,
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014847.json b/conversations/conv_014847.json
deleted file mode 100644
index 4cc7a94042c7fdd72cd820de858a92c72fc14042..0000000000000000000000000000000000000000
--- a/conversations/conv_014847.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7121-88076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-88076.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
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-      "real_speaker_id": "7121",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "2364",
-      "position_frames": 68680
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "8867-294715",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014851.json b/conversations/conv_014851.json
deleted file mode 100644
index 3166bed4e5895e91c2c7c49b88435bdf779fb49b..0000000000000000000000000000000000000000
--- a/conversations/conv_014851.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "position_frames": 110624
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-    {
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-      "position_frames": 214528
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014860.json b/conversations/conv_014860.json
deleted file mode 100644
index d34f9930d0e222caf385328ce4c469585f0b756f..0000000000000000000000000000000000000000
--- a/conversations/conv_014860.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-17347.flac |",
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-      "real_speaker_id": "4710",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 4.415461448351955,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
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-      "speaker_id": "4710"
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-}
\ No newline at end of file
diff --git a/conversations/conv_014867.json b/conversations/conv_014867.json
deleted file mode 100644
index c9cdb8f89d30650113d92a5b55f6ad2b0c9738fd..0000000000000000000000000000000000000000
--- a/conversations/conv_014867.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.80279411263653,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125126.flac |",
-      "real_speaker_id": "483",
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-      "real_speaker_id": "6902",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125116.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_014871.json b/conversations/conv_014871.json
deleted file mode 100644
index d958631661b9398577ef4938d4ae1b63125d1bb4..0000000000000000000000000000000000000000
--- a/conversations/conv_014871.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
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-      "speaker_id": "2517"
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-}
\ No newline at end of file
diff --git a/conversations/conv_014876.json b/conversations/conv_014876.json
deleted file mode 100644
index cd38d88fab45e8283dcbf643d7bafc9c825a46ec..0000000000000000000000000000000000000000
--- a/conversations/conv_014876.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2288/cough/0092.wav",
-      "duration": 0.9447188300681317,
-      "start_time": 29.80855194807555,
-      "speaker_id": "2288"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014884.json b/conversations/conv_014884.json
deleted file mode 100644
index 839d95c34fd41afe08b306066d731ea30bc2cb97..0000000000000000000000000000000000000000
--- a/conversations/conv_014884.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.642455756902172,
-      "duration": 4.642455756902172,
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-      "overlap": false,
-      "utterance_id": "4051-11217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11217.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.479304596819526,
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-      "utterance_id": "8443-274756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-274756.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.372464360780803,
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-      "duration_frames": 60721,
-      "overlap": false,
-      "utterance_id": "4051-11217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11217.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 74279
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.339101412363766,
-      "end_time": 19.735952326117545,
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-      "overlap": true,
-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.3810820660191,
-      "end_time": 24.030051101798943,
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-      "utterance_id": "4051-11218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11218.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.64018608555838,
-      "end_time": 30.975463798535472,
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-      "duration_frames": 101364,
-      "overlap": false,
-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 70349
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.19196902288322,
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-      "duration": 0.8080309771167791,
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-      "utterance_id": "4051-10927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-10927.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8443/laugh/0029.wav",
-      "duration": 1.48,
-      "start_time": 10.959832293540174,
-      "speaker_id": "8443"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2348/laugh/0065.wav",
-      "duration": 0.7256384645684388,
-      "start_time": 23.742041959393088,
-      "speaker_id": "2348"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_014888.json b/conversations/conv_014888.json
deleted file mode 100644
index da8fd9bcce00f559058fdfbd504727596b107fe1..0000000000000000000000000000000000000000
--- a/conversations/conv_014888.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.28375066324878,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3905-172165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-172165.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3934-102413.flac |",
-      "real_speaker_id": "3934",
-      "position_frames": 0
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-      "utterance_id": "3905-149791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.40796031209196,
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-      "overlap": false,
-      "utterance_id": "3934-102413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3934-102413.flac |",
-      "real_speaker_id": "3934",
-      "position_frames": 91695
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.541810580912394,
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-      "utterance_id": "3905-149791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 90541
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3934-102413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3934-102413.flac |",
-      "real_speaker_id": "3934",
-      "position_frames": 168744
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3905/laugh/0052.wav",
-      "duration": 1.44,
-      "start_time": 16.539743175617573,
-      "speaker_id": "3905"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014892.json b/conversations/conv_014892.json
deleted file mode 100644
index 70c9268995cfa2d81b31fd74133442d1f54405df..0000000000000000000000000000000000000000
--- a/conversations/conv_014892.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 0
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-    {
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
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-      "real_speaker_id": "585",
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-      "real_speaker_id": "1740",
-      "position_frames": 70369
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
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-      "position_frames": 167354
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014899.json b/conversations/conv_014899.json
deleted file mode 100644
index cf32c1567e220da181f03308942ac9a2ce30f412..0000000000000000000000000000000000000000
--- a/conversations/conv_014899.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "26-495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-    {
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "26"
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-      "event_class": "laugh",
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-      "duration": 0.92,
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-      "speaker_id": "8742"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6614/laugh/0116.wav",
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-      "speaker_id": "6614"
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-    {
-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 21.86015663228469,
-      "speaker_id": "8742"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014902.json b/conversations/conv_014902.json
deleted file mode 100644
index 820ab79f4655ae0e67aa5f7ca9bd7d88c1475b49..0000000000000000000000000000000000000000
--- a/conversations/conv_014902.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.226239500095599,
-      "duration": 6.226239500095599,
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-      "overlap": false,
-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.859586445737412,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-94500.flac |",
-      "real_speaker_id": "7392",
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-      "utterance_id": "2592-5341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-5341.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.790383925932286,
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-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 99619
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.894415928085316,
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-      "utterance_id": "7392-105664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-105664.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.0505736715765,
-      "end_time": 32.0,
-      "duration": 1.949426328423499,
-      "start_frame": 480809,
-      "duration_frames": 31190,
-      "overlap": false,
-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 163263
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
-      "duration": 22.504510224042996,
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-    {
-      "event_class": "Dog",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2592/laugh/0079.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2592/laugh/0040.wav",
-      "duration": 1.08,
-      "start_time": 30.61504079593875,
-      "speaker_id": "2592"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2592/cough/0042.wav",
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-      "start_time": 29.34672728061724,
-      "speaker_id": "2592"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014914.json b/conversations/conv_014914.json
deleted file mode 100644
index 2d9337af7502f11daee385ac51adb1bf33d24ae6..0000000000000000000000000000000000000000
--- a/conversations/conv_014914.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "6418-39654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39654.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6135-41994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41994.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "2356-154907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.73106287317154,
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-      "overlap": false,
-      "utterance_id": "2356-154885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154885.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.2004576766088,
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-      "utterance_id": "6135-41995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41995.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.69361691555524,
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-      "duration": 4.306383084444761,
-      "start_frame": 443097,
-      "duration_frames": 68902,
-      "overlap": false,
-      "utterance_id": "6418-39656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39656.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2356/laugh/0067.wav",
-      "duration": 1.36,
-      "start_time": 10.61540545198088,
-      "speaker_id": "2356"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2356/laugh/0115.wav",
-      "duration": 1.4,
-      "start_time": 18.186333021620243,
-      "speaker_id": "2356"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6135/laugh/0046.wav",
-      "duration": 1.26,
-      "start_time": 25.91069651675579,
-      "speaker_id": "6135"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6418/laugh/0105.wav",
-      "duration": 0.92,
-      "start_time": 26.497774046759407,
-      "speaker_id": "6418"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014918.json b/conversations/conv_014918.json
deleted file mode 100644
index 8709fcc0334abf7891a4cbe7f0dcf657ba710c84..0000000000000000000000000000000000000000
--- a/conversations/conv_014918.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7247-77778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-77778.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7247-77778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-77778.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 68362
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.087315470212657,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 71163
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "7247-94108",
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-      "real_speaker_id": "7247",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "4480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.52361136939522,
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-      "utterance_id": "7247-94108",
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-      "real_speaker_id": "7247",
-      "position_frames": 76019
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/953/cough/0012.wav",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014919.json b/conversations/conv_014919.json
deleted file mode 100644
index d0c92229772beea66525e9cd800d92baf10b4757..0000000000000000000000000000000000000000
--- a/conversations/conv_014919.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-52164.flac |",
-      "real_speaker_id": "5911",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_014922.json b/conversations/conv_014922.json
deleted file mode 100644
index 85a7bc3a08e777523f48ed4cc2e4441e1c926312..0000000000000000000000000000000000000000
--- a/conversations/conv_014922.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_014925.json b/conversations/conv_014925.json
deleted file mode 100644
index ee3ea61e7545184559a089fe24edb54e2d18e9fc..0000000000000000000000000000000000000000
--- a/conversations/conv_014925.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_014933.json b/conversations/conv_014933.json
deleted file mode 100644
index 1a88dd4d33597e0612a7752563f5bc5fd7f9d8d2..0000000000000000000000000000000000000000
--- a/conversations/conv_014933.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_014934.json b/conversations/conv_014934.json
deleted file mode 100644
index 89bb1448495bec4bc0088b7d307f11f51eb81f58..0000000000000000000000000000000000000000
--- a/conversations/conv_014934.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "real_speaker_id": "7239",
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-      "real_speaker_id": "968",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.639594606717118,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89646.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "start_time": 8.444246783571481,
-      "speaker_id": "7239"
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "968"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014938.json b/conversations/conv_014938.json
deleted file mode 100644
index 45b841a92cddbd8a0a20bc53db48ad574e99da2d..0000000000000000000000000000000000000000
--- a/conversations/conv_014938.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2062-109873",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2062-109873.flac |",
-      "real_speaker_id": "2062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.690291806685061,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125883.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 0
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-      "utterance_id": "4837-285896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4837-285896.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125883.flac |",
-      "real_speaker_id": "369",
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2062-143900.flac |",
-      "real_speaker_id": "2062",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.441630811404842,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4837-285896.flac |",
-      "real_speaker_id": "4837",
-      "position_frames": 102110
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_014943.json b/conversations/conv_014943.json
deleted file mode 100644
index 34a7efc4eba572f1574c53bab6ef10b0bbec34f5..0000000000000000000000000000000000000000
--- a/conversations/conv_014943.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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-      "utterance_id": "5266-41151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 0
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-      "utterance_id": "6402-105213",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "6402-105213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105213.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 87614
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 84221
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "position_frames": 0
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6402/cough/0137.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6402/laugh/0026.wav",
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-      "speaker_id": "6402"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014955.json b/conversations/conv_014955.json
deleted file mode 100644
index 2f5cb38659317cabf79ffeec8b56d126a02bd3ad..0000000000000000000000000000000000000000
--- a/conversations/conv_014955.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2445-148556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
-      "real_speaker_id": "2445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.660367473465727,
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-      "real_speaker_id": "5980",
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-    {
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-      "utterance_id": "2445-148556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
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-    {
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-      "real_speaker_id": "2445",
-      "position_frames": 233527
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 82140
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5980/laugh/0061.wav",
-      "duration": 1.154062269881895,
-      "start_time": 28.82006256730389,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2445/laugh/0017.wav",
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-      "event_class": "cough",
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-      "speaker_id": "2445"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014959.json b/conversations/conv_014959.json
deleted file mode 100644
index 512b11300b615e7be163340f3c2d6f10aecd63ad..0000000000000000000000000000000000000000
--- a/conversations/conv_014959.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7155575178415186,
-      "duration": 3.7155575178415186,
-      "start_frame": 0,
-      "duration_frames": 59448,
-      "overlap": false,
-      "utterance_id": "4064-12118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-12118.flac |",
-      "real_speaker_id": "4064",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8973046343864857,
-      "end_time": 8.634120704872299,
-      "duration": 4.736816070485813,
-      "start_frame": 62356,
-      "duration_frames": 75789,
-      "overlap": true,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.777869451816745,
-      "end_time": 13.169785447347508,
-      "duration": 3.3919159955307627,
-      "start_frame": 156445,
-      "duration_frames": 54270,
-      "overlap": false,
-      "utterance_id": "3959-706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
-      "real_speaker_id": "3959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.76381345890945,
-      "end_time": 20.033198138621156,
-      "duration": 6.269384679711706,
-      "start_frame": 220221,
-      "duration_frames": 100310,
-      "overlap": true,
-      "utterance_id": "4064-12118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-12118.flac |",
-      "real_speaker_id": "4064",
-      "position_frames": 59448
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.58641238057443,
-      "end_time": 26.28092306797522,
-      "duration": 5.694510687400791,
-      "start_frame": 329382,
-      "duration_frames": 91112,
-      "overlap": true,
-      "utterance_id": "3959-706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
-      "real_speaker_id": "3959",
-      "position_frames": 54270
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.236413556952712,
-      "end_time": 32.0,
-      "duration": 3.763586443047288,
-      "start_frame": 451782,
-      "duration_frames": 60217,
-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 75789
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
-      "duration": 14.662637535702112,
-      "start_time": 2.89703205595416
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.1576413216864925,
-      "start_time": 10.629332456771962
-    },
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
-      "duration": 1.7540255124891493,
-      "start_time": 19.094809529248224
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3959/cough/0100.wav",
-      "duration": 0.953936495416716,
-      "start_time": 8.655476365596611,
-      "speaker_id": "3959"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4064/cough/0068.wav",
-      "duration": 1.4631131834026907,
-      "start_time": 18.126379823849234,
-      "speaker_id": "4064"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3959/laugh/0117.wav",
-      "duration": 1.44,
-      "start_time": 26.572236128544276,
-      "speaker_id": "3959"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2774/laugh/0093.wav",
-      "duration": 1.0994349111557495,
-      "start_time": 26.839998662733283,
-      "speaker_id": "2774"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014963.json b/conversations/conv_014963.json
deleted file mode 100644
index 22a2df0c88f6754d5616f03490d0b5817b2cd92e..0000000000000000000000000000000000000000
--- a/conversations/conv_014963.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.162673654544374,
-      "duration": 4.162673654544374,
-      "start_frame": 0,
-      "duration_frames": 66602,
-      "overlap": false,
-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.872472520458515,
-      "end_time": 11.000034247260222,
-      "duration": 6.127561726801708,
-      "start_frame": 77959,
-      "duration_frames": 98040,
-      "overlap": false,
-      "utterance_id": "36-16602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.633502043886438,
-      "end_time": 16.090382442740356,
-      "duration": 4.456880398853919,
-      "start_frame": 186136,
-      "duration_frames": 71310,
-      "overlap": false,
-      "utterance_id": "36-16602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 98040
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.355706296550373,
-      "end_time": 20.502099130583666,
-      "duration": 4.1463928340332945,
-      "start_frame": 261691,
-      "duration_frames": 66342,
-      "overlap": false,
-      "utterance_id": "6324-64063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.623521467399755,
-      "end_time": 24.2825619946319,
-      "duration": 3.659040527232146,
-      "start_frame": 329976,
-      "duration_frames": 58544,
-      "overlap": false,
-      "utterance_id": "36-16602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 169350
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.4069716083945,
-      "end_time": 28.958480427516406,
-      "duration": 4.551508819121908,
-      "start_frame": 390511,
-      "duration_frames": 72824,
-      "overlap": false,
-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 66602
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.265775494704638,
-      "end_time": 32.0,
-      "duration": 2.734224505295362,
-      "start_frame": 468252,
-      "duration_frames": 43747,
-      "overlap": false,
-      "utterance_id": "36-16602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 227894
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
-      "duration": 2.4900584580191225,
-      "start_time": 5.1907357477053875
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/36/laugh/0047.wav",
-      "duration": 1.2057360297310447,
-      "start_time": 11.014244771924066,
-      "speaker_id": "36"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6324/laugh/0014.wav",
-      "duration": 0.9000546681255104,
-      "start_time": 19.10080290904329,
-      "speaker_id": "6324"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6324/cough/0002.wav",
-      "duration": 0.568012294902307,
-      "start_time": 20.59688166676092,
-      "speaker_id": "6324"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/36/cough/0064.wav",
-      "duration": 0.35690157704773423,
-      "start_time": 20.076411300439144,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/36/laugh/0024.wav",
-      "duration": 0.9929429848180125,
-      "start_time": 31.00705701518199,
-      "speaker_id": "36"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014964.json b/conversations/conv_014964.json
deleted file mode 100644
index 72b50fbbacb3f8af2e28f4eb5b13c0d53fa6a919..0000000000000000000000000000000000000000
--- a/conversations/conv_014964.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.54386368547187,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.370879428390989,
-      "duration": 4.370879428390989,
-      "start_frame": 0,
-      "duration_frames": 69934,
-      "overlap": false,
-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.399320839097989,
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-      "duration": 3.463015106171208,
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-      "overlap": false,
-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 69934
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.05717601794088,
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-      "duration": 5.304851179903379,
-      "start_frame": 144914,
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-      "utterance_id": "6330-62850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62850.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.319997263037592,
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-      "utterance_id": "6367-65536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.76615624800108,
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-      "overlap": false,
-      "utterance_id": "6367-74004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-74004.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.712067854670615,
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-      "overlap": true,
-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 125342
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6330/cough/0052.wav",
-      "duration": 1.04,
-      "start_time": 12.86472999099421,
-      "speaker_id": "6330"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6367/cough/0065.wav",
-      "duration": 1.36,
-      "start_time": 13.771217950410016,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6641/laugh/0035.wav",
-      "duration": 0.6073717737161715,
-      "start_time": 26.88065595916412,
-      "speaker_id": "6641"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_014972.json b/conversations/conv_014972.json
deleted file mode 100644
index 366f77043b5adb53788a51a52aed783748a8c8e3..0000000000000000000000000000000000000000
--- a/conversations/conv_014972.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6468248554846165,
-      "duration": 3.6468248554846165,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "882-123266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123266.flac |",
-      "real_speaker_id": "882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.235365105321609,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "882-123266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123266.flac |",
-      "real_speaker_id": "882",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_014975.json b/conversations/conv_014975.json
deleted file mode 100644
index 32eebc791f0b70f1a7ec930b336e94445c637e27..0000000000000000000000000000000000000000
--- a/conversations/conv_014975.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3638-696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
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-      "start_time": 4.521403951299205,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-129387.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
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-      "position_frames": 59247
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3638-758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-758.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.491058000823763,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_014979.json b/conversations/conv_014979.json
deleted file mode 100644
index 88db4581356457ec2026a59df40a68e789e1691a..0000000000000000000000000000000000000000
--- a/conversations/conv_014979.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "utterance_id": "2270-156683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-156683.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_014980.json b/conversations/conv_014980.json
deleted file mode 100644
index 09554b4a197671f756cd31694673925d12dd9440..0000000000000000000000000000000000000000
--- a/conversations/conv_014980.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
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\ No newline at end of file
diff --git a/conversations/conv_014996.json b/conversations/conv_014996.json
deleted file mode 100644
index ace2ca755cc7a482a96448124d694b0ba9567e29..0000000000000000000000000000000000000000
--- a/conversations/conv_014996.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156014.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 75093
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.18766365941453,
-      "end_time": 29.656005482887316,
-      "duration": 6.468341823472786,
-      "start_frame": 371002,
-      "duration_frames": 103493,
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-      "utterance_id": "1977-133046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 91782
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.906929970275094,
-      "end_time": 32.0,
-      "duration": 1.093070029724906,
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-      "duration_frames": 17489,
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-      "utterance_id": "4930-20046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 18.248534909573316,
-      "start_time": 0.024712210585691053
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_18.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1977/laugh/0097.wav",
-      "duration": 1.44,
-      "start_time": 4.03139240100472,
-      "speaker_id": "1977"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2494/laugh/0044.wav",
-      "duration": 1.38,
-      "start_time": 22.42678323623198,
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-      "event_class": "cough",
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-      "duration": 1.0,
-      "start_time": 16.20732138747803,
-      "speaker_id": "2494"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015000.json b/conversations/conv_015000.json
deleted file mode 100644
index f65d96c084b846bee1da0c7367da481702d2e40a..0000000000000000000000000000000000000000
--- a/conversations/conv_015000.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.1533691869189893,
-      "duration": 3.1533691869189893,
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-      "overlap": false,
-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8753011328398372,
-      "end_time": 10.134180887933198,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 50453
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-73033.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 64833
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-    {
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-      "utterance_id": "5933-73033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-73033.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 49492
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Dishes",
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-      "speaker_id": "5933"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015016.json b/conversations/conv_015016.json
deleted file mode 100644
index f690f2dbdb13cb15f870232d7c2ead556221770b..0000000000000000000000000000000000000000
--- a/conversations/conv_015016.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.045960881500964,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "5123-34572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
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-      "real_speaker_id": "1006",
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-      "real_speaker_id": "7835",
-      "position_frames": 63143
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.471441186362096,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
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-  ],
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7835/laugh/0068.wav",
-      "duration": 1.08,
-      "start_time": 22.971338495512093,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "5123"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015020.json b/conversations/conv_015020.json
deleted file mode 100644
index 0a3f342f1226ab2960d9af1c0248994f333f8362..0000000000000000000000000000000000000000
--- a/conversations/conv_015020.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7240-92202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92202.flac |",
-      "real_speaker_id": "7240",
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-      "utterance_id": "1092-134563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134563.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 48186
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-    {
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-      "real_speaker_id": "1092",
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-      "real_speaker_id": "7240",
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015036.json b/conversations/conv_015036.json
deleted file mode 100644
index 348725561127b207bd2a6e253ec2f37c4cc1cd67..0000000000000000000000000000000000000000
--- a/conversations/conv_015036.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.55106353695818,
-      "duration": 6.55106353695818,
-      "start_frame": 0,
-      "duration_frames": 104817,
-      "overlap": false,
-      "utterance_id": "8295-296107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-296107.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.1544550510230085,
-      "end_time": 12.788080193967428,
-      "duration": 5.63362514294442,
-      "start_frame": 114471,
-      "duration_frames": 90138,
-      "overlap": false,
-      "utterance_id": "466-134185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134185.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.09669313231783,
-      "end_time": 16.22194997833164,
-      "duration": 4.1252568460138095,
-      "start_frame": 193547,
-      "duration_frames": 66004,
-      "overlap": true,
-      "utterance_id": "466-134208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134208.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.518346641830945,
-      "end_time": 22.806775697676272,
-      "duration": 5.288429055845329,
-      "start_frame": 280293,
-      "duration_frames": 84614,
-      "overlap": false,
-      "utterance_id": "8295-296107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-296107.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 104817
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.367166173167725,
-      "end_time": 26.865473620284853,
-      "duration": 3.498307447117126,
-      "start_frame": 373874,
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-      "overlap": false,
-      "utterance_id": "466-134196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134196.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.00395597544312,
-      "end_time": 32.0,
-      "duration": 4.9960440245568805,
-      "start_frame": 432063,
-      "duration_frames": 79936,
-      "overlap": false,
-      "utterance_id": "8112-281888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8112-281888.flac |",
-      "real_speaker_id": "8112",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
-      "duration": 0.6496145124716554,
-      "start_time": 10.132612239120611
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8295/cough/0090.wav",
-      "duration": 0.5881318224328231,
-      "start_time": 0,
-      "speaker_id": "8295"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/466/cough/0112.wav",
-      "duration": 0.5609233253460842,
-      "start_time": 9.614130070963242,
-      "speaker_id": "466"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8295/laugh/0054.wav",
-      "duration": 0.7579043444065068,
-      "start_time": 18.675029828854335,
-      "speaker_id": "8295"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/466/laugh/0069.wav",
-      "duration": 0.96,
-      "start_time": 27.02640629502708,
-      "speaker_id": "466"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8112/cough/0003.wav",
-      "duration": 1.3043572497445022,
-      "start_time": 30.695642750255498,
-      "speaker_id": "8112"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015037.json b/conversations/conv_015037.json
deleted file mode 100644
index 96ec2e2cd079457940bf83a437f884ec975213cb..0000000000000000000000000000000000000000
--- a/conversations/conv_015037.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.371836777592896,
-      "duration": 5.371836777592896,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7540-101262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101262.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.248508485329387,
-      "end_time": 10.927240125380788,
-      "duration": 4.678731640051401,
-      "start_frame": 99976,
-      "duration_frames": 74859,
-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.884280255790237,
-      "end_time": 15.677860984994945,
-      "duration": 4.793580729204708,
-      "start_frame": 174148,
-      "duration_frames": 76697,
-      "overlap": true,
-      "utterance_id": "7540-101799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101799.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.097538397289913,
-      "end_time": 21.37172984047315,
-      "duration": 4.274191443183238,
-      "start_frame": 273560,
-      "duration_frames": 68387,
-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 74859
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.146797923240857,
-      "end_time": 26.66202967305661,
-      "duration": 4.515231749815755,
-      "start_frame": 354348,
-      "duration_frames": 72243,
-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 143246
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.069581401410062,
-      "end_time": 32.0,
-      "duration": 4.930418598589938,
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-      "duration_frames": 78886,
-      "overlap": false,
-      "utterance_id": "7540-101262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101262.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 85949
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_1.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7540/cough/0031.wav",
-      "duration": 0.3138893146597522,
-      "start_time": 0,
-      "speaker_id": "7540"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7540/cough/0027.wav",
-      "duration": 0.7723185891256564,
-      "start_time": 15.776136671078637,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5290/cough/0075.wav",
-      "duration": 1.0856443258438162,
-      "start_time": 21.435194007683908,
-      "speaker_id": "5290"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7540/laugh/0049.wav",
-      "duration": 1.22,
-      "start_time": 27.45288640595571,
-      "speaker_id": "7540"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015041.json b/conversations/conv_015041.json
deleted file mode 100644
index 127c61954ab0f0fdc0b39a2dc57892f14abbadaa..0000000000000000000000000000000000000000
--- a/conversations/conv_015041.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.49602780491253,
-      "duration": 5.49602780491253,
-      "start_frame": 0,
-      "duration_frames": 87936,
-      "overlap": false,
-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.22578168599514,
-      "end_time": 11.514231333363682,
-      "duration": 5.288449647368541,
-      "start_frame": 99612,
-      "duration_frames": 84615,
-      "overlap": true,
-      "utterance_id": "4225-144132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.122702429454737,
-      "end_time": 17.826275808572895,
-      "duration": 5.703573379118158,
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-      "duration_frames": 91257,
-      "overlap": true,
-      "utterance_id": "7538-100045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.626790291663717,
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-      "utterance_id": "6510-62558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62558.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.398451020600433,
-      "end_time": 32.0,
-      "duration": 5.601548979399567,
-      "start_frame": 422375,
-      "duration_frames": 89624,
-      "overlap": false,
-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 87936
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
-      "duration": 1.0480007464772623,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
-      "duration": 0.0936734693877551,
-      "start_time": 25.79032101788449
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_015057.json b/conversations/conv_015057.json
deleted file mode 100644
index a7b29f7d04c7a2856082cd9a354be043dfb730ea..0000000000000000000000000000000000000000
--- a/conversations/conv_015057.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.72259828183068,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.1918159717745236,
-      "duration": 3.1918159717745236,
-      "start_frame": 0,
-      "duration_frames": 51069,
-      "overlap": false,
-      "utterance_id": "5979-42005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42005.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.5275686806164543,
-      "end_time": 8.599869919621732,
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-      "overlap": false,
-      "utterance_id": "5993-19639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19639.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.081815440891775,
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-      "duration": 4.67967554504436,
-      "start_frame": 145309,
-      "duration_frames": 74874,
-      "overlap": false,
-      "utterance_id": "5979-42002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42002.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.69761608621679,
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-      "duration_frames": 104897,
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-      "utterance_id": "5933-91994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-91994.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "5993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.315266139162954,
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-      "start_frame": 437044,
-      "duration_frames": 70517,
-      "overlap": true,
-      "utterance_id": "5979-42002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42002.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 74874
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Dishes",
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-      "duration": 0.16043083900226757,
-      "start_time": 24.93341269688521
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5933/laugh/0102.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5979/laugh/0144.wav",
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-      "start_time": 26.384642092757968,
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-}
\ No newline at end of file
diff --git a/conversations/conv_015060.json b/conversations/conv_015060.json
deleted file mode 100644
index bdafc0965e7292924d826f1975164fc68d37d2db..0000000000000000000000000000000000000000
--- a/conversations/conv_015060.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.245399799621367,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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\ No newline at end of file
diff --git a/conversations/conv_015061.json b/conversations/conv_015061.json
deleted file mode 100644
index 1f017673baff69cd77ad598175e987eb1483a3fe..0000000000000000000000000000000000000000
--- a/conversations/conv_015061.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_015077.json b/conversations/conv_015077.json
deleted file mode 100644
index 2e5238970fcb6e65e3936ba4ffc5a43cbbcb20a1..0000000000000000000000000000000000000000
--- a/conversations/conv_015077.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015082.json b/conversations/conv_015082.json
deleted file mode 100644
index 3d2a2e58d7237fbb5e779aaadec3943b3eadcfd0..0000000000000000000000000000000000000000
--- a/conversations/conv_015082.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
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-      "position_frames": 0
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-      "speaker_id": "5703"
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\ No newline at end of file
diff --git a/conversations/conv_015094.json b/conversations/conv_015094.json
deleted file mode 100644
index b4b532f419141dc525d95924206133a6e270f8da..0000000000000000000000000000000000000000
--- a/conversations/conv_015094.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1183-128659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-128659.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-124566.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "1183-133255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-133255.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.84963267980373,
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-      "utterance_id": "6418-39656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39656.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
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-      "start_time": 16.22494938718878,
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-}
\ No newline at end of file
diff --git a/conversations/conv_015098.json b/conversations/conv_015098.json
deleted file mode 100644
index 0c16234950ad8fa0ecf00df6dc7118ea2a7de5f4..0000000000000000000000000000000000000000
--- a/conversations/conv_015098.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3990-31915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31915.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31915.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 110836
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-      "duration": 0.3830203490302644,
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-      "utterance_id": "3990-31915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31915.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 204706
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-  ],
-  "background_events": [
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-      "speaker_id": "3990"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015104.json b/conversations/conv_015104.json
deleted file mode 100644
index fee01b296cf326c825d3180ca166435823272aa9..0000000000000000000000000000000000000000
--- a/conversations/conv_015104.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6509-67147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6509-67147.flac |",
-      "real_speaker_id": "6509",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7584-266228.flac |",
-      "real_speaker_id": "7584",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59167.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7584-101882.flac |",
-      "real_speaker_id": "7584",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59167.flac |",
-      "real_speaker_id": "7126",
-      "position_frames": 72321
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 30.485999117995107,
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-      "utterance_id": "6509-67147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6509-67147.flac |",
-      "real_speaker_id": "6509",
-      "position_frames": 107485
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7126/laugh/0027.wav",
-      "duration": 1.28,
-      "start_time": 29.901202305113646,
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-    {
-      "event_class": "cough",
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-      "duration": 0.7481323413511758,
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-      "speaker_id": "7126"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6509/laugh/0078.wav",
-      "duration": 1.039386913290885,
-      "start_time": 30.62606486723826,
-      "speaker_id": "6509"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015108.json b/conversations/conv_015108.json
deleted file mode 100644
index 25c69bab04359ed3c263db60664c4e98c174121e..0000000000000000000000000000000000000000
--- a/conversations/conv_015108.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.35029752904875,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 6.267491683968338,
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-      "real_speaker_id": "5239",
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-      "real_speaker_id": "7467",
-      "position_frames": 85349
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
-      "real_speaker_id": "7467",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-      "start_time": 19.651548754802587,
-      "speaker_id": "8772"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015112.json b/conversations/conv_015112.json
deleted file mode 100644
index 64f73154ffddb0d0cb60e2b354260ecaf2050650..0000000000000000000000000000000000000000
--- a/conversations/conv_015112.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1846-144452.flac |",
-      "real_speaker_id": "1846",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11517.flac |",
-      "real_speaker_id": "4085",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1846-144452.flac |",
-      "real_speaker_id": "1846",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30096.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_015119.json b/conversations/conv_015119.json
deleted file mode 100644
index 009e65b08682bbf90d972dd00c2d6d99938d495d..0000000000000000000000000000000000000000
--- a/conversations/conv_015119.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
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-      "real_speaker_id": "3723",
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-      "position_frames": 94584
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-      "real_speaker_id": "2946",
-      "position_frames": 78391
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 171007
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015124.json b/conversations/conv_015124.json
deleted file mode 100644
index e1593f45f18f36cf01ad150364dfcbef5ce329ff..0000000000000000000000000000000000000000
--- a/conversations/conv_015124.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.655649488931644,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/210/laugh/0007.wav",
-      "duration": 1.0071530186790716,
-      "start_time": 3.135818069932098,
-      "speaker_id": "210"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3021/laugh/0169.wav",
-      "duration": 1.52,
-      "start_time": 6.779406825698123,
-      "speaker_id": "3021"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015125.json b/conversations/conv_015125.json
deleted file mode 100644
index 25f5eea19fe67b9594acebae23224a2048a03ca4..0000000000000000000000000000000000000000
--- a/conversations/conv_015125.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.687863927862978,
-      "duration": 5.687863927862978,
-      "start_frame": 0,
-      "duration_frames": 91005,
-      "overlap": false,
-      "utterance_id": "8119-115687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115687.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.049738251328179,
-      "end_time": 9.83346504369498,
-      "duration": 3.783726792366801,
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-      "duration_frames": 60539,
-      "overlap": false,
-      "utterance_id": "8071-110067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-110067.flac |",
-      "real_speaker_id": "8071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.965616650506043,
-      "end_time": 15.230819334919865,
-      "duration": 5.265202684413822,
-      "start_frame": 159449,
-      "duration_frames": 84243,
-      "overlap": false,
-      "utterance_id": "7113-86041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.624198803481123,
-      "end_time": 22.317454948800318,
-      "duration": 6.693256145319193,
-      "start_frame": 249987,
-      "duration_frames": 107092,
-      "overlap": true,
-      "utterance_id": "8119-115687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115687.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 91005
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.13698263473247,
-      "end_time": 27.474585919646895,
-      "duration": 4.337603284914425,
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-      "overlap": false,
-      "utterance_id": "8071-114975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-114975.flac |",
-      "real_speaker_id": "8071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.005329976349245,
-      "end_time": 32.0,
-      "duration": 3.9946700236507553,
-      "start_frame": 448085,
-      "duration_frames": 63914,
-      "overlap": false,
-      "utterance_id": "8119-115686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115686.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
-      "duration": 0.3160770975056689,
-      "start_time": 11.531203025583611
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/84654.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8119/laugh/0085.wav",
-      "duration": 1.16,
-      "start_time": 5.812788373257542,
-      "speaker_id": "8119"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8071/cough/0027.wav",
-      "duration": 1.2,
-      "start_time": 9.840827512452089,
-      "speaker_id": "8071"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7113/laugh/0089.wav",
-      "duration": 1.2815126345382812,
-      "start_time": 8.459429470296836,
-      "speaker_id": "7113"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7113/cough/0025.wav",
-      "duration": 0.828724921668144,
-      "start_time": 15.27961791773594,
-      "speaker_id": "7113"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8119/laugh/0055.wav",
-      "duration": 1.08,
-      "start_time": 22.59000146045036,
-      "speaker_id": "8119"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015128.json b/conversations/conv_015128.json
deleted file mode 100644
index eee6f973211be87702fb03871b7ae3537ec2496a..0000000000000000000000000000000000000000
--- a/conversations/conv_015128.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1107-134313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-134313.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.300902572483211,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133254.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "4161-185349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.391420185740722,
-      "end_time": 21.546627573161942,
-      "duration": 6.155207387421221,
-      "start_frame": 246262,
-      "duration_frames": 98483,
-      "overlap": true,
-      "utterance_id": "4161-185349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 66350
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.684296851637036,
-      "end_time": 28.485478505577916,
-      "duration": 5.801181653940881,
-      "start_frame": 362948,
-      "duration_frames": 92818,
-      "overlap": true,
-      "utterance_id": "1107-1042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-1042.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.567887514614604,
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-      "duration": 2.432112485385396,
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-      "duration_frames": 38913,
-      "overlap": false,
-      "utterance_id": "4161-185349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 164833
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1107/cough/0007.wav",
-      "duration": 0.92,
-      "start_time": 0,
-      "speaker_id": "1107"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4161/laugh/0004.wav",
-      "duration": 0.7011803646487274,
-      "start_time": 15.135193317205857,
-      "speaker_id": "4161"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4161/laugh/0001.wav",
-      "duration": 1.16,
-      "start_time": 28.162844213352727,
-      "speaker_id": "4161"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015132.json b/conversations/conv_015132.json
deleted file mode 100644
index 070c7b22d93ab4aebe5c70065911e57ed8d36103..0000000000000000000000000000000000000000
--- a/conversations/conv_015132.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.950318940424875,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2404-141240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2404-141240.flac |",
-      "real_speaker_id": "2404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.0255341260041675,
-      "end_time": 8.276842690786353,
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-      "overlap": false,
-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "6627-67844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67844.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.324276703763967,
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-      "utterance_id": "2404-141240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2404-141240.flac |",
-      "real_speaker_id": "2404",
-      "position_frames": 58325
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.830060942122923,
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-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 68020
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.192698150051488,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 164425
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
-      "duration": 0.21675736961451247,
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4733/laugh/0007.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015145.json b/conversations/conv_015145.json
deleted file mode 100644
index 744da30c64a32724ca4044405ee32c3182edae47..0000000000000000000000000000000000000000
--- a/conversations/conv_015145.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 4.446386189801149,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8710-286293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8710-286293.flac |",
-      "real_speaker_id": "8710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.639504811993467,
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-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 107150,
-      "overlap": false,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
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-      "position_frames": 70193
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
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-  "paralinguistic_events": [
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-      "speaker_id": "8710"
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-      "duration": 1.44,
-      "start_time": 3.1067137618970655,
-      "speaker_id": "845"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7959/laugh/0076.wav",
-      "duration": 0.7141718076172503,
-      "start_time": 15.380863278207212,
-      "speaker_id": "7959"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8710/laugh/0117.wav",
-      "duration": 1.24,
-      "start_time": 25.324144642871325,
-      "speaker_id": "8710"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015149.json b/conversations/conv_015149.json
deleted file mode 100644
index 66cae580e7398dd6755459f63660a3a605a4600e..0000000000000000000000000000000000000000
--- a/conversations/conv_015149.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.5457510189548547,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.440662755495041,
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-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.19699141964984,
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-      "utterance_id": "712-123615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.380930272014197,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-65528.flac |",
-      "real_speaker_id": "4936",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 23.383157079661366,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 56252
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.938896205306495,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-64719.flac |",
-      "real_speaker_id": "4936",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2276/laugh/0130.wav",
-      "duration": 1.3989972815327345,
-      "start_time": 5.755673445720647,
-      "speaker_id": "2276"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/712/laugh/0069.wav",
-      "duration": 1.0094734857436518,
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-      "speaker_id": "712"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015153.json b/conversations/conv_015153.json
deleted file mode 100644
index 6daede40ad48f31122de93b599612de2a611120f..0000000000000000000000000000000000000000
--- a/conversations/conv_015153.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19373.flac |",
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-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 72423
-    },
-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 133686
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.85441062356789,
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-      "utterance_id": "5261-19373",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19373.flac |",
-      "real_speaker_id": "5261",
-      "position_frames": 77830
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_1.wav",
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-      "start_time": 0,
-      "speaker_id": "1444"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015158.json b/conversations/conv_015158.json
deleted file mode 100644
index 35e06ea0288c5c959d21b8a73aaf71898de89857..0000000000000000000000000000000000000000
--- a/conversations/conv_015158.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6563-63821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-63821.flac |",
-      "real_speaker_id": "6563",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.257995655607353,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-63821.flac |",
-      "real_speaker_id": "6563",
-      "position_frames": 55939
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "3138-173544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 66900
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-285357.flac |",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015165.json b/conversations/conv_015165.json
deleted file mode 100644
index 2f0e611f888b7eade88506d1df639c6e45fbb35d..0000000000000000000000000000000000000000
--- a/conversations/conv_015165.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8459-292347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-292347.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57827.flac |",
-      "real_speaker_id": "6030",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-292347.flac |",
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-      "segment_id": "seg0003",
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-  "foreground_events": [
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-      "speaker_id": "8466"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015169.json b/conversations/conv_015169.json
deleted file mode 100644
index fa5421e61ceb39967d3dc332f505d31f876c71fd..0000000000000000000000000000000000000000
--- a/conversations/conv_015169.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.342878731448998,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-54083.flac |",
-      "real_speaker_id": "8432",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-16000.flac |",
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-      "position_frames": 0
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-      "position_frames": 60963
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.553649951951883,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-135897.flac |",
-      "real_speaker_id": "159",
-      "position_frames": 0
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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\ No newline at end of file
diff --git a/conversations/conv_015172.json b/conversations/conv_015172.json
deleted file mode 100644
index 18c82df0c6f88e9195b8688e05e6a42aab7b4f6b..0000000000000000000000000000000000000000
--- a/conversations/conv_015172.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26551.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
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-      "real_speaker_id": "1704",
-      "position_frames": 61475
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4979-26563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26563.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.154229427795983,
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-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 168641
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015173.json b/conversations/conv_015173.json
deleted file mode 100644
index b8f0acae9df97c26cf63f5ddd81e062193496ce9..0000000000000000000000000000000000000000
--- a/conversations/conv_015173.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5424-296464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-296464.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
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-      "real_speaker_id": "5424",
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-    {
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-      "segment_id": "seg0004",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_015186.json b/conversations/conv_015186.json
deleted file mode 100644
index 18557fa4eac4c849dae5d26a24fde5c1619ebabf..0000000000000000000000000000000000000000
--- a/conversations/conv_015186.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "7009",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "7009"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015190.json b/conversations/conv_015190.json
deleted file mode 100644
index 3a979a8e2f5f2bcebda7ef7227c210358f805df5..0000000000000000000000000000000000000000
--- a/conversations/conv_015190.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1482-140067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140067.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.8528473942129,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-123998.flac |",
-      "real_speaker_id": "154",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140072.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "154-293987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-293987.flac |",
-      "real_speaker_id": "154",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.4790265454075,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2045-158081.flac |",
-      "real_speaker_id": "2045",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.70529846387655,
-      "end_time": 32.0,
-      "duration": 1.2947015361234513,
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-      "overlap": false,
-      "utterance_id": "154-293987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-293987.flac |",
-      "real_speaker_id": "154",
-      "position_frames": 63021
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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\ No newline at end of file
diff --git a/conversations/conv_015201.json b/conversations/conv_015201.json
deleted file mode 100644
index 45e66a1ac23966f539e1515a9250d91c1fd5ef82..0000000000000000000000000000000000000000
--- a/conversations/conv_015201.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
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-      "real_speaker_id": "8415",
-      "position_frames": 59288
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
-      "real_speaker_id": "6258",
-      "position_frames": 103852
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7387-279272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7387-279272.flac |",
-      "real_speaker_id": "7387",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 140164
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-  "foreground_events": [
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-    {
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-      "speaker_id": "8415"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015217.json b/conversations/conv_015217.json
deleted file mode 100644
index 27d43f95784857efde5a438f80933da38839c3a6..0000000000000000000000000000000000000000
--- a/conversations/conv_015217.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "708-129393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
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-      "segment_id": "seg0005",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_015221.json b/conversations/conv_015221.json
deleted file mode 100644
index a954c96ab84179d2b48f22f76e90e0931b2d8072..0000000000000000000000000000000000000000
--- a/conversations/conv_015221.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1195-135814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-135814.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-145473.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-37134.flac |",
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-      "segment_id": "seg0006",
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-      "speaker_id": "1195"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015226.json b/conversations/conv_015226.json
deleted file mode 100644
index c5d6ddcaa967fca3ab30f31ca841d99402305467..0000000000000000000000000000000000000000
--- a/conversations/conv_015226.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169284.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169288.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.00014995253889,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169284.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 86214
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8382-285236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285236.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 95467
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169288.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 104364
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015230.json b/conversations/conv_015230.json
deleted file mode 100644
index 02e6d28557dbfd87c11e02dcd307057a40aa90b0..0000000000000000000000000000000000000000
--- a/conversations/conv_015230.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-129979.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-129983.flac |",
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-      "real_speaker_id": "3955",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "utterance_id": "472-129983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-129983.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 108633
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.176855863608687,
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-      "overlap": false,
-      "utterance_id": "472-129994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-129994.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-      "duration": 1.2,
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-      "speaker_id": "472"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015237.json b/conversations/conv_015237.json
deleted file mode 100644
index f5689e7ed6ad6dfb9be92967ce2344a1a7c0a83f..0000000000000000000000000000000000000000
--- a/conversations/conv_015237.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 81923,
-      "overlap": false,
-      "utterance_id": "3554-165435",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-165435.flac |",
-      "real_speaker_id": "3554",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.167627105791119,
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-      "overlap": true,
-      "utterance_id": "3867-173236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173236.flac |",
-      "real_speaker_id": "3867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.736947381238553,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173236.flac |",
-      "real_speaker_id": "3867",
-      "position_frames": 63543
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8684",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.49064140488923,
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-      "overlap": false,
-      "utterance_id": "3867-173236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173236.flac |",
-      "real_speaker_id": "3867",
-      "position_frames": 112492
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 0.6387218871188125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173236.flac |",
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-      "position_frames": 185593
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_015240.json b/conversations/conv_015240.json
deleted file mode 100644
index 8b92819037af68e29badf368efb8b5975ac98757..0000000000000000000000000000000000000000
--- a/conversations/conv_015240.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.36707720975364,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_frame": 0,
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-      "utterance_id": "3781-156973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3781-156973.flac |",
-      "real_speaker_id": "3781",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121969.flac |",
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-      "real_speaker_id": "4680",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.579004030055264,
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-      "duration_frames": 99918,
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-      "utterance_id": "3781-156973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3781-156973.flac |",
-      "real_speaker_id": "3781",
-      "position_frames": 57800
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.012301970789927,
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-      "utterance_id": "4680-16042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16042.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 57439
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121969.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 74494
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3781/laugh/0018.wav",
-      "duration": 0.7292339459017421,
-      "start_time": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_015256.json b/conversations/conv_015256.json
deleted file mode 100644
index 6209dcf2048df559dd3b75bde293d8d088599dd8..0000000000000000000000000000000000000000
--- a/conversations/conv_015256.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8374302364652593,
-      "duration": 3.8374302364652593,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8033-104515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-104515.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.416068524740304,
-      "end_time": 7.633891707445145,
-      "duration": 3.2178231827048416,
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-      "duration_frames": 51485,
-      "overlap": false,
-      "utterance_id": "111-126277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126277.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.94625985318454,
-      "end_time": 11.55702755723955,
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-      "overlap": false,
-      "utterance_id": "7276-92427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 12.162858945243485,
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-      "overlap": false,
-      "utterance_id": "7276-284424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.838011376479706,
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-      "utterance_id": "8033-283463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-283463.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 25.168748972749412,
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-      "overlap": false,
-      "utterance_id": "111-129000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.751865687058842,
-      "end_time": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-90847.flac |",
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-      "position_frames": 0
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "duration": 0.92,
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-      "speaker_id": "111"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015260.json b/conversations/conv_015260.json
deleted file mode 100644
index 4c588f0bdeede871e83947a9652840556ad26381..0000000000000000000000000000000000000000
--- a/conversations/conv_015260.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "duration_frames": 54008,
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-      "utterance_id": "6555-398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8464-282934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8464-282934.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61948.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
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-    {
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-      "position_frames": 81513
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-      "segment_id": "seg0005",
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-      "utterance_id": "6555-397",
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-      "real_speaker_id": "6555",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.511827258842228,
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-      "utterance_id": "5784-36627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-36627.flac |",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 3.391796777433393,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5784/laugh/0066.wav",
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-      "start_time": 14.828064211819855,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6555/laugh/0052.wav",
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-      "start_time": 27.859531273092976,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6555/cough/0073.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015267.json b/conversations/conv_015267.json
deleted file mode 100644
index ac726048717ba4ff4887bd7b9cd55d687afdc32a..0000000000000000000000000000000000000000
--- a/conversations/conv_015267.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
-      "end_time": 4.927024707924196,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
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-    {
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/91/cough/0088.wav",
-      "duration": 1.12,
-      "start_time": 12.934331539835275,
-      "speaker_id": "91"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6974/cough/0008.wav",
-      "duration": 1.1005881434882245,
-      "start_time": 18.40292707098298,
-      "speaker_id": "6974"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015271.json b/conversations/conv_015271.json
deleted file mode 100644
index d41875499a48b381e33280bb01323cc53c111672..0000000000000000000000000000000000000000
--- a/conversations/conv_015271.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.003311302070976,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.289523292926298,
-      "duration": 5.289523292926298,
-      "start_frame": 0,
-      "duration_frames": 84632,
-      "overlap": false,
-      "utterance_id": "8259-276906",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276906.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.695172537307853,
-      "end_time": 11.53471862610737,
-      "duration": 4.8395460887995165,
-      "start_frame": 107122,
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-      "overlap": false,
-      "utterance_id": "8259-276906",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276906.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 84632
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.698306260606149,
-      "end_time": 16.644657505151187,
-      "duration": 4.946351244545037,
-      "start_frame": 187172,
-      "duration_frames": 79141,
-      "overlap": false,
-      "utterance_id": "1342-133247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133247.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.60448444472376,
-      "end_time": 22.150036071731602,
-      "duration": 5.5455516270078435,
-      "start_frame": 265671,
-      "duration_frames": 88728,
-      "overlap": true,
-      "utterance_id": "8259-276913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276913.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.890126804776244,
-      "end_time": 28.121327197931564,
-      "duration": 4.23120039315532,
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-      "duration_frames": 67699,
-      "overlap": false,
-      "utterance_id": "1342-133248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133248.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.280368610560426,
-      "end_time": 31.003311302070976,
-      "duration": 3.72294269151055,
-      "start_frame": 436485,
-      "duration_frames": 59567,
-      "overlap": true,
-      "utterance_id": "8259-276912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276912.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
-      "duration": 3.5004984660378553,
-      "start_time": 13.245442610661687
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8259/laugh/0032.wav",
-      "duration": 1.48,
-      "start_time": 5.399594024116852,
-      "speaker_id": "8259"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1342/laugh/0032.wav",
-      "duration": 1.32,
-      "start_time": 10.08503969534951,
-      "speaker_id": "1342"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1342/laugh/0031.wav",
-      "duration": 1.27651997309798,
-      "start_time": 22.35682224625612,
-      "speaker_id": "1342"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8259/laugh/0092.wav",
-      "duration": 1.6971233333054865,
-      "start_time": 30.302876666694512,
-      "speaker_id": "8259"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015276.json b/conversations/conv_015276.json
deleted file mode 100644
index 47e4ef8f2f84326502dae13c37dae2ff82f67a41..0000000000000000000000000000000000000000
--- a/conversations/conv_015276.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.548144860110657,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.344067368376507,
-      "duration": 6.344067368376507,
-      "start_frame": 0,
-      "duration_frames": 101505,
-      "overlap": false,
-      "utterance_id": "1826-142752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1826-142752.flac |",
-      "real_speaker_id": "1826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.761289557266099,
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-      "overlap": false,
-      "utterance_id": "5727-47030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47030.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.343006831913652,
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-      "duration_frames": 63706,
-      "overlap": false,
-      "utterance_id": "5727-47030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47030.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 93946
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.93219889313502,
-      "end_time": 23.144319079458995,
-      "duration": 5.2121201863239754,
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-      "duration_frames": 83393,
-      "overlap": false,
-      "utterance_id": "3792-176660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.568190602470978,
-      "end_time": 27.20260403982434,
-      "duration": 3.6344134373533636,
-      "start_frame": 377091,
-      "duration_frames": 58150,
-      "overlap": true,
-      "utterance_id": "1826-142752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1826-142752.flac |",
-      "real_speaker_id": "1826",
-      "position_frames": 101505
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.06628817216575,
-      "end_time": 31.548144860110657,
-      "duration": 3.4818566879449078,
-      "start_frame": 449060,
-      "duration_frames": 55709,
-      "overlap": false,
-      "utterance_id": "5727-47032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47032.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
-      "duration": 0.5608390022675737,
-      "start_time": 27.22763101737525
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5727/laugh/0100.wav",
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-      "start_time": 13.866632810287363,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1826/laugh/0022.wav",
-      "duration": 1.52,
-      "start_time": 27.35604515865186,
-      "speaker_id": "1826"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1826/cough/0110.wav",
-      "duration": 1.2997132426173255,
-      "start_time": 27.351505773179063,
-      "speaker_id": "1826"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5727/laugh/0049.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5727/cough/0056.wav",
-      "duration": 0.5514008761576432,
-      "start_time": 29.405751452596682,
-      "speaker_id": "5727"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015283.json b/conversations/conv_015283.json
deleted file mode 100644
index 941e7aefff738a4731cd07f0d5d09a2720c07ad8..0000000000000000000000000000000000000000
--- a/conversations/conv_015283.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.509662778345703,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.306680821915795,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8095-274345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274345.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.455155506391921,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8095-274348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274348.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.641775631673823,
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-      "duration": 5.271043649085172,
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-      "duration_frames": 84336,
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-      "utterance_id": "8543-280376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280376.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.220158647987482,
-      "end_time": 26.08717088047714,
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-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 89706
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.156068665661223,
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-      "duration_frames": 69657,
-      "overlap": true,
-      "utterance_id": "8543-280376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280376.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 84336
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8543/cough/0025.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8543/laugh/0086.wav",
-      "duration": 0.64,
-      "start_time": 25.231143218944215,
-      "speaker_id": "8543"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015288.json b/conversations/conv_015288.json
deleted file mode 100644
index fc1c668d9e384bb03e94b03572135bbf833228fa..0000000000000000000000000000000000000000
--- a/conversations/conv_015288.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.719035012828446,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_frame": 0,
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-      "utterance_id": "253-124400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-124400.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.586847651146352,
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-      "utterance_id": "4148-183988",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4148-134149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-134149.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "speaker_id": "4148"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015295.json b/conversations/conv_015295.json
deleted file mode 100644
index 991bc31c36edec094476d8ea821090929102ad37..0000000000000000000000000000000000000000
--- a/conversations/conv_015295.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35926.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60489.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182315.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.53975346846505,
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-      "utterance_id": "5242-35921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_015299.json b/conversations/conv_015299.json
deleted file mode 100644
index 665d2f531f87a297217885fcff21ea2be0f6e2c3..0000000000000000000000000000000000000000
--- a/conversations/conv_015299.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-77778.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015305.json b/conversations/conv_015305.json
deleted file mode 100644
index 73e2ffc216223b139f870a3f0c6ba67687289a29..0000000000000000000000000000000000000000
--- a/conversations/conv_015305.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015309.json b/conversations/conv_015309.json
deleted file mode 100644
index 241c5a195575fcee4c465fbd8f8c411def0b774f..0000000000000000000000000000000000000000
--- a/conversations/conv_015309.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2712-3532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3532.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.2817349926372192,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3483/laugh/0023.wav",
-      "duration": 1.28,
-      "start_time": 8.544038215701654,
-      "speaker_id": "3483"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3483/laugh/0017.wav",
-      "duration": 1.1333163645650086,
-      "start_time": 25.433158985813623,
-      "speaker_id": "3483"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015313.json b/conversations/conv_015313.json
deleted file mode 100644
index 28fbc2ea907dd08cbdb783e206e5c1682dffb7fa..0000000000000000000000000000000000000000
--- a/conversations/conv_015313.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.12484412920074,
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-      "overlap": false,
-      "utterance_id": "3433-135988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-135988.flac |",
-      "real_speaker_id": "3433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.389367795131808,
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-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "3433-20043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-20043.flac |",
-      "real_speaker_id": "3433",
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-    },
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-      "speaker_id": 0,
-      "start_time": 17.035890530164608,
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-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 111230
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 170967
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.781596602857885,
-      "end_time": 29.7060615461954,
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-      "overlap": false,
-      "utterance_id": "5339-14134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.914168347414975,
-      "end_time": 32.0,
-      "duration": 2.085831652585025,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 78791
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-      "event_class": "cough",
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-    {
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-      "speaker_id": "7609"
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 1.18,
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-      "speaker_id": "5339"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015322.json b/conversations/conv_015322.json
deleted file mode 100644
index 4924ab2d8d15f1b048c7e31a81afe0abc9a4eb9a..0000000000000000000000000000000000000000
--- a/conversations/conv_015322.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.830101071662991,
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-      "start_time": 11.505306746930527,
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-      "utterance_id": "8169-118202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118202.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.95656747819375,
-      "end_time": 23.54128431757427,
-      "duration": 6.584716839380519,
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-      "duration_frames": 105355,
-      "overlap": true,
-      "utterance_id": "5445-21280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21280.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.43478441094489,
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-      "duration": 3.277686008613855,
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-      "utterance_id": "792-127528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/792-127528.flac |",
-      "real_speaker_id": "792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.012397303445397,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118202.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 83616
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "792"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015325.json b/conversations/conv_015325.json
deleted file mode 100644
index b7d999aca9cddd5d38a9bab6af3f0bf77bcbe738..0000000000000000000000000000000000000000
--- a/conversations/conv_015325.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "39-121915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121915.flac |",
-      "real_speaker_id": "39",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "39",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297969.flac |",
-      "real_speaker_id": "8753",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.19991617819441,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157861.flac |",
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-      "position_frames": 0
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-    {
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.792111843171718,
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-      "duration": 5.207888156828282,
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-      "overlap": false,
-      "utterance_id": "2473-157861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157861.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 59393
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_015329.json b/conversations/conv_015329.json
deleted file mode 100644
index 1ca49a7e8d77e815abdcbfdb3339b04174af94a9..0000000000000000000000000000000000000000
--- a/conversations/conv_015329.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "7607-89899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
-      "real_speaker_id": "7607",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.048860526921979,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
-      "real_speaker_id": "7607",
-      "position_frames": 78698
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1826-139361.flac |",
-      "real_speaker_id": "1826",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5245-3984.flac |",
-      "real_speaker_id": "5245",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
-      "real_speaker_id": "7607",
-      "position_frames": 168870
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.53691794285897,
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-      "duration": 5.46308205714103,
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-      "utterance_id": "5245-3984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5245-3984.flac |",
-      "real_speaker_id": "5245",
-      "position_frames": 71476
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7607/laugh/0002.wav",
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-      "start_time": 8.520791597707168,
-      "speaker_id": "7607"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1826/laugh/0121.wav",
-      "duration": 0.739323483129028,
-      "start_time": 11.232854471545277,
-      "speaker_id": "1826"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7607/laugh/0023.wav",
-      "duration": 0.5752957534850669,
-      "start_time": 25.260465956907723,
-      "speaker_id": "7607"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015333.json b/conversations/conv_015333.json
deleted file mode 100644
index 136f927336672b16d18824be7ea2d0b83ee11f93..0000000000000000000000000000000000000000
--- a/conversations/conv_015333.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.39355837032486,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.818212432174489,
-      "duration": 4.818212432174489,
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-      "duration_frames": 77091,
-      "overlap": false,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.155270648571177,
-      "end_time": 10.519173249371944,
-      "duration": 6.363902600800767,
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-      "utterance_id": "439-123866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-123866.flac |",
-      "real_speaker_id": "439",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.079960400776685,
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-      "overlap": false,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 77091
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.68958033597133,
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-      "duration": 6.458076893543131,
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-      "duration_frames": 103329,
-      "overlap": false,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 163008
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.252288114611545,
-      "end_time": 30.20251501687973,
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-      "overlap": false,
-      "utterance_id": "4836-26485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.763220214319063,
-      "end_time": 31.39355837032486,
-      "duration": 1.6303381560057986,
-      "start_frame": 476211,
-      "duration_frames": 26085,
-      "overlap": true,
-      "utterance_id": "439-123866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-123866.flac |",
-      "real_speaker_id": "439",
-      "position_frames": 101822
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4836/laugh/0076.wav",
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-      "speaker_id": "439"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015334.json b/conversations/conv_015334.json
deleted file mode 100644
index 9c8d01c19e51d289c2a75e43da5cfc5efaacd0d6..0000000000000000000000000000000000000000
--- a/conversations/conv_015334.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.876767256722445,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "820-123133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.642871243978693,
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-      "utterance_id": "572-126495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-126495.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.64636357889519,
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-      "overlap": false,
-      "utterance_id": "820-123135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123135.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.635912873948687,
-      "end_time": 20.53188001661716,
-      "duration": 3.895967142668472,
-      "start_frame": 266174,
-      "duration_frames": 62335,
-      "overlap": false,
-      "utterance_id": "572-96582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-96582.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.93874442229905,
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-      "utterance_id": "820-123133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 84412
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.172654871078556,
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-      "duration": 5.704112385643888,
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-      "overlap": false,
-      "utterance_id": "5776-46889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5776-46889.flac |",
-      "real_speaker_id": "5776",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
-      "duration": 4.094172335600907,
-      "start_time": 7.1448091142389485
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/572/laugh/0073.wav",
-      "duration": 1.04,
-      "start_time": 4.451963171540587,
-      "speaker_id": "572"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015344.json b/conversations/conv_015344.json
deleted file mode 100644
index 483551d29aab36e626942be566caa5e82f92365b..0000000000000000000000000000000000000000
--- a/conversations/conv_015344.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.26880073278717,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.4310580948431992,
-      "duration": 3.4310580948431992,
-      "start_frame": 0,
-      "duration_frames": 54896,
-      "overlap": false,
-      "utterance_id": "8630-305212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305212.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.284614373127773,
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-      "utterance_id": "4492-8907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8907.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.648766759717262,
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-      "start_frame": 154380,
-      "duration_frames": 66123,
-      "overlap": false,
-      "utterance_id": "8630-305212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305212.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 54896
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.77555997046709,
-      "end_time": 19.138328833384985,
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-      "start_frame": 236408,
-      "duration_frames": 69804,
-      "overlap": false,
-      "utterance_id": "7264-92314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7264-92314.flac |",
-      "real_speaker_id": "7264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.812115475021567,
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-      "utterance_id": "8630-305213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305213.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.534179078430128,
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-      "duration": 5.625279982220898,
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-      "duration_frames": 90004,
-      "overlap": false,
-      "utterance_id": "8630-305212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305212.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 121019
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.1899087368747,
-      "end_time": 31.26880073278717,
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-      "utterance_id": "7264-92314",
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-      "real_speaker_id": "7264",
-      "position_frames": 69804
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8630/laugh/0054.wav",
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-      "start_time": 0,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4492/laugh/0103.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8630/laugh/0088.wav",
-      "duration": 1.12,
-      "start_time": 20.459070574123068,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8630/laugh/0074.wav",
-      "duration": 0.9801397482816192,
-      "start_time": 30.322590712409344,
-      "speaker_id": "8630"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8630/cough/0045.wav",
-      "duration": 0.6743295538045933,
-      "start_time": 25.79383874208337,
-      "speaker_id": "8630"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7264/cough/0079.wav",
-      "duration": 0.6139456885588372,
-      "start_time": 31.3491409607555,
-      "speaker_id": "7264"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015348.json b/conversations/conv_015348.json
deleted file mode 100644
index 49a0ec1f8bc96ce4d00ad600ac6d42dcdf3c508a..0000000000000000000000000000000000000000
--- a/conversations/conv_015348.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.9007313111301105,
-      "duration": 5.9007313111301105,
-      "start_frame": 0,
-      "duration_frames": 94411,
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-      "utterance_id": "1987-144135",
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-      "speaker_id": "1987"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015349.json b/conversations/conv_015349.json
deleted file mode 100644
index a956f4f3803967f74ad2d8f912ad85ce0eabddb4..0000000000000000000000000000000000000000
--- a/conversations/conv_015349.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2853-164188.flac |",
-      "real_speaker_id": "2853",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2853-164187.flac |",
-      "real_speaker_id": "2853",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86047.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.396757888865505,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2853-164187.flac |",
-      "real_speaker_id": "2853",
-      "position_frames": 68812
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2853-164188.flac |",
-      "real_speaker_id": "2853",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015352.json b/conversations/conv_015352.json
deleted file mode 100644
index 54540ec151c1b5c77d34ea4cb52089c1a4b06dfb..0000000000000000000000000000000000000000
--- a/conversations/conv_015352.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 80697
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4034-5706",
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-      "real_speaker_id": "4034",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
-      "real_speaker_id": "365",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015359.json b/conversations/conv_015359.json
deleted file mode 100644
index 3069aea0a117278fd642e73f60e6c6a755e91f02..0000000000000000000000000000000000000000
--- a/conversations/conv_015359.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2998",
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-    {
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-      "real_speaker_id": "240",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 64143
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/240-160593.flac |",
-      "real_speaker_id": "240",
-      "position_frames": 91090
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "5719-233361",
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-      "real_speaker_id": "5719",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "5719"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015363.json b/conversations/conv_015363.json
deleted file mode 100644
index 7238396abc25cd890ae069a350e15742392c1bdd..0000000000000000000000000000000000000000
--- a/conversations/conv_015363.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_015364.json b/conversations/conv_015364.json
deleted file mode 100644
index 50273c5b14dc4b37dc9158ac5d22948e9435beca..0000000000000000000000000000000000000000
--- a/conversations/conv_015364.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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\ No newline at end of file
diff --git a/conversations/conv_015368.json b/conversations/conv_015368.json
deleted file mode 100644
index 6002ec65344cbcfac7ee8140a56d1ed934e41680..0000000000000000000000000000000000000000
--- a/conversations/conv_015368.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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-  "num_speakers": 3,
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_015372.json b/conversations/conv_015372.json
deleted file mode 100644
index 4d3a28c1a9f63557e59a41196c332b0b6bfad59f..0000000000000000000000000000000000000000
--- a/conversations/conv_015372.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-292240.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-121722.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015375.json b/conversations/conv_015375.json
deleted file mode 100644
index c2bec39085ffb4b9167e936d156926909f08245f..0000000000000000000000000000000000000000
--- a/conversations/conv_015375.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287358.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134828.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134829.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.948082772631697,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-294466.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1110-134828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134828.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 87208
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_015387.json b/conversations/conv_015387.json
deleted file mode 100644
index 18687a619732fe5830b8eab302d5136a71fb7c35..0000000000000000000000000000000000000000
--- a/conversations/conv_015387.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122743.flac |",
-      "real_speaker_id": "432",
-      "position_frames": 78421
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "7383"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015391.json b/conversations/conv_015391.json
deleted file mode 100644
index d79791c8c4f452f63e86d4c19c2dace94587e023..0000000000000000000000000000000000000000
--- a/conversations/conv_015391.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5401-102526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-102526.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134816.flac |",
-      "real_speaker_id": "2498",
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-      "real_speaker_id": "5104",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2498-134786",
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-      "real_speaker_id": "2498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 6.2439276881654635,
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-      "utterance_id": "5401-39508",
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-      "real_speaker_id": "5401",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015407.json b/conversations/conv_015407.json
deleted file mode 100644
index 7e4ba5d3c4b2e82acda36dd55623f9601214cfb9..0000000000000000000000000000000000000000
--- a/conversations/conv_015407.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "4915-113765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-113765.flac |",
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-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.38089671662029,
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-      "utterance_id": "303-123506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123506.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.818508457566683,
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-      "utterance_id": "4915-113765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-113765.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 148513
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.70620907878088,
-      "end_time": 31.046661862741523,
-      "duration": 0.34045278396064305,
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-      "duration_frames": 5447,
-      "overlap": true,
-      "utterance_id": "4549-39615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39615.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4915/laugh/0087.wav",
-      "duration": 0.84,
-      "start_time": 3.31455069625564,
-      "speaker_id": "4915"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4915/cough/0062.wav",
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-      "event_class": "cough",
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-      "start_time": 4.979580212364125,
-      "speaker_id": "4915"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/303/laugh/0029.wav",
-      "duration": 1.18,
-      "start_time": 20.514947453933946,
-      "speaker_id": "303"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4915/laugh/0011.wav",
-      "duration": 0.8093808285586916,
-      "start_time": 22.81815826805777,
-      "speaker_id": "4915"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015411.json b/conversations/conv_015411.json
deleted file mode 100644
index b0d65a4655149a93d3fd4f480e52eacbbd1234ad..0000000000000000000000000000000000000000
--- a/conversations/conv_015411.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.627202509472773,
-      "duration": 4.627202509472773,
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-      "duration_frames": 74035,
-      "overlap": false,
-      "utterance_id": "2185-150124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150124.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.500654912632226,
-      "end_time": 10.398518592123377,
-      "duration": 4.8978636794911505,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-14986.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.362764927325193,
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-      "overlap": false,
-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.483109228743082,
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-      "overlap": false,
-      "utterance_id": "2185-150123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.888777375948735,
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-      "overlap": false,
-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 68490
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.43208640610434,
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-      "duration": 4.5679135938956605,
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-      "duration_frames": 73086,
-      "overlap": false,
-      "utterance_id": "2185-150124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150124.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 74035
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.08,
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-      "duration": 1.12,
-      "start_time": 21.638663026314784,
-      "speaker_id": "953"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015427.json b/conversations/conv_015427.json
deleted file mode 100644
index f1b13dff4898ed98c648a0e026f32b2c8ae4e75d..0000000000000000000000000000000000000000
--- a/conversations/conv_015427.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8367-279367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279367.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
-    },
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-      "start_time": 6.228964540070036,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8855-283228.flac |",
-      "real_speaker_id": "8855",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "8367-279366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279366.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.343060086953937,
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-      "utterance_id": "8855-302395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8855-302395.flac |",
-      "real_speaker_id": "8855",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.657430835249492,
-      "end_time": 29.159978983985546,
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-      "utterance_id": "8367-279367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279367.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 102026
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 2.409109232486024,
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-      "utterance_id": "6753-76099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76099.flac |",
-      "real_speaker_id": "6753",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "speaker_id": "8855"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015430.json b/conversations/conv_015430.json
deleted file mode 100644
index 6bf6033f32eaa5b7832f3657dcafa8a74d4f8002..0000000000000000000000000000000000000000
--- a/conversations/conv_015430.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.587971619624923,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.77048529485796,
-      "duration": 4.77048529485796,
-      "start_frame": 0,
-      "duration_frames": 76327,
-      "overlap": false,
-      "utterance_id": "331-132019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-132019.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.91003289712318,
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-      "utterance_id": "5772-43331",
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-      "real_speaker_id": "5772",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.948143011247424,
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-      "utterance_id": "331-135126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-135126.flac |",
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-    {
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-    {
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-    {
-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
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-      "start_time": 31.245405125318516,
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-  "paralinguistic_events": [
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3482/laugh/0061.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "3482"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015431.json b/conversations/conv_015431.json
deleted file mode 100644
index fadb1c3a791881429764b81c746e383ed0a882b4..0000000000000000000000000000000000000000
--- a/conversations/conv_015431.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5778-12761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-12761.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.735164293957339,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration": 3.6226515532742996,
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-      "duration_frames": 57962,
-      "overlap": false,
-      "utterance_id": "5778-54535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-54535.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.376117423374133,
-      "end_time": 19.87281941651922,
-      "duration": 4.496701993145086,
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-      "duration_frames": 71947,
-      "overlap": false,
-      "utterance_id": "3792-176660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.105866692639555,
-      "end_time": 26.623962943352872,
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-      "utterance_id": "5778-54535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-54535.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 57962
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.54335629985832,
-      "end_time": 32.0,
-      "duration": 4.456643700141679,
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-      "utterance_id": "3792-176660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 71947
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5778/cough/0082.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3792/cough/0066.wav",
-      "duration": 0.5929836193230732,
-      "start_time": 28.293108380599534,
-      "speaker_id": "3792"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015446.json b/conversations/conv_015446.json
deleted file mode 100644
index 8b0405f8c2a6acc03d7389f9a088df6036ed0e49..0000000000000000000000000000000000000000
--- a/conversations/conv_015446.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.88256471068508,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.725469517187698,
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-      "overlap": false,
-      "utterance_id": "3112-9554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9554.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.445782861070308,
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-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 50671
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.991955362318466,
-      "end_time": 19.753335663252713,
-      "duration": 3.7613803009342455,
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-      "utterance_id": "3112-9554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9554.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 76852
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.77391394484526,
-      "end_time": 25.217230152601104,
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-      "overlap": false,
-      "utterance_id": "1691-142296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.44001340297239,
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-      "utterance_id": "1691-142296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 71093
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_5.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1691/laugh/0123.wav",
-      "duration": 1.36,
-      "start_time": 23.29537645929928,
-      "speaker_id": "1691"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015450.json b/conversations/conv_015450.json
deleted file mode 100644
index d5c07b229c8f76e44e36df2d9f3535c0e112ca84..0000000000000000000000000000000000000000
--- a/conversations/conv_015450.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.751103059919177,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 97815
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 175990
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "4214-7146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.4842158730256,
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-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.438095209212513,
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-      "duration": 2.5619047907874872,
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-      "overlap": false,
-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 243351
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
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-    {
-      "event_class": "cough",
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-      "duration": 0.700847573349454,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4733/laugh/0056.wav",
-      "duration": 1.12,
-      "start_time": 17.496510612478996,
-      "speaker_id": "4733"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015466.json b/conversations/conv_015466.json
deleted file mode 100644
index e5a3169d27118f68da33c42e40bc0510038ad679..0000000000000000000000000000000000000000
--- a/conversations/conv_015466.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "4411-14494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14494.flac |",
-      "real_speaker_id": "4411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "4899-32658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32658.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4411-14501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14501.flac |",
-      "real_speaker_id": "4411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32658.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 92823
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14494.flac |",
-      "real_speaker_id": "4411",
-      "position_frames": 85322
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4899-32637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32637.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "start_time": 30.54,
-      "speaker_id": "4899"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015467.json b/conversations/conv_015467.json
deleted file mode 100644
index ec7c8c7a789b75b751703fafef137b18fcf92f54..0000000000000000000000000000000000000000
--- a/conversations/conv_015467.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_015470.json b/conversations/conv_015470.json
deleted file mode 100644
index a26936a327186f1072f094be96f578f5b72bdedc..0000000000000000000000000000000000000000
--- a/conversations/conv_015470.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_015485.json b/conversations/conv_015485.json
deleted file mode 100644
index 93fb8bfebb34d89d5cb5ef3a23478f8964df377e..0000000000000000000000000000000000000000
--- a/conversations/conv_015485.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_015488.json b/conversations/conv_015488.json
deleted file mode 100644
index cf54023e7717f859c1ebffcd1c90f35814870342..0000000000000000000000000000000000000000
--- a/conversations/conv_015488.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130531.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130531.flac |",
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-      "real_speaker_id": "8419",
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-    },
-    {
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\ No newline at end of file
diff --git a/conversations/conv_015489.json b/conversations/conv_015489.json
deleted file mode 100644
index ee0c4a1cb375195401a32c0c90ba44db622b5f96..0000000000000000000000000000000000000000
--- a/conversations/conv_015489.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "6418",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8522.flac |",
-      "real_speaker_id": "1421",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "speaker_id": 1,
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-      "speaker_id": "1421"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015493.json b/conversations/conv_015493.json
deleted file mode 100644
index 384088f865900138cbd3235163a0a4320a5fda6d..0000000000000000000000000000000000000000
--- a/conversations/conv_015493.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68896.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68897.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20048.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.384554978629858,
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-      "utterance_id": "4930-20046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 88303
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_015503.json b/conversations/conv_015503.json
deleted file mode 100644
index bab41beadc5ca321813c5014d825dc77bd3b8e45..0000000000000000000000000000000000000000
--- a/conversations/conv_015503.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-56405.flac |",
-      "real_speaker_id": "6025",
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-      "utterance_id": "7177-258977",
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-      "real_speaker_id": "7177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6763-74797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74797.flac |",
-      "real_speaker_id": "6763",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "6763"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015508.json b/conversations/conv_015508.json
deleted file mode 100644
index 206405895edd5b4a579270d47ce62a18a7abbd44..0000000000000000000000000000000000000000
--- a/conversations/conv_015508.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "start_frame": 0,
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-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.084584244053633,
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-      "real_speaker_id": "7657",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5968-55202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-55202.flac |",
-      "real_speaker_id": "5968",
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-    {
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-      "position_frames": 100767
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-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-      "utterance_id": "7657-104717",
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-      "position_frames": 184776
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4964/laugh/0026.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7657/laugh/0017.wav",
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-      "speaker_id": "7657"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015515.json b/conversations/conv_015515.json
deleted file mode 100644
index a89a6ead46fa2631601986c388e64c805949ee70..0000000000000000000000000000000000000000
--- a/conversations/conv_015515.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_015519.json b/conversations/conv_015519.json
deleted file mode 100644
index e70599ab36760fb6b1120dff6c3246767fec5f18..0000000000000000000000000000000000000000
--- a/conversations/conv_015519.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_015522.json b/conversations/conv_015522.json
deleted file mode 100644
index 15820b503a1bd0d19be94b0ec507817c1ad72a99..0000000000000000000000000000000000000000
--- a/conversations/conv_015522.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_015523.json b/conversations/conv_015523.json
deleted file mode 100644
index 00b0f1ca0e3c0b64a6ff6b566b1f3f12a40e152c..0000000000000000000000000000000000000000
--- a/conversations/conv_015523.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_015535.json b/conversations/conv_015535.json
deleted file mode 100644
index 56fd87337d852a9b05a3d2f0d4de19bf542f85d9..0000000000000000000000000000000000000000
--- a/conversations/conv_015535.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.40491336011473,
-      "duration": 4.40491336011473,
-      "start_frame": 0,
-      "duration_frames": 70478,
-      "overlap": false,
-      "utterance_id": "2929-86777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-86777.flac |",
-      "real_speaker_id": "2929",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.890554180558942,
-      "end_time": 11.45094621005711,
-      "duration": 6.560392029498168,
-      "start_frame": 78248,
-      "duration_frames": 104966,
-      "overlap": true,
-      "utterance_id": "1846-144452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1846-144452.flac |",
-      "real_speaker_id": "1846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.710700614610074,
-      "end_time": 18.732248113834352,
-      "duration": 6.021547499224276,
-      "start_frame": 203371,
-      "duration_frames": 96344,
-      "overlap": false,
-      "utterance_id": "8071-110067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-110067.flac |",
-      "real_speaker_id": "8071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.278725364269775,
-      "end_time": 22.316974321707686,
-      "duration": 4.038248957437911,
-      "start_frame": 292459,
-      "duration_frames": 64611,
-      "overlap": true,
-      "utterance_id": "2929-85685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-85685.flac |",
-      "real_speaker_id": "2929",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.65695768418458,
-      "end_time": 26.24143389534173,
-      "duration": 3.584476211157151,
-      "start_frame": 362511,
-      "duration_frames": 57351,
-      "overlap": true,
-      "utterance_id": "8071-114972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-114972.flac |",
-      "real_speaker_id": "8071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.370597892768618,
-      "end_time": 32.0,
-      "duration": 4.629402107231382,
-      "start_frame": 437929,
-      "duration_frames": 74070,
-      "overlap": false,
-      "utterance_id": "2929-85685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-85685.flac |",
-      "real_speaker_id": "2929",
-      "position_frames": 64611
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
-      "duration": 0.2440362811791383,
-      "start_time": 7.362749520200235
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2929/laugh/0049.wav",
-      "duration": 0.9241056031248251,
-      "start_time": 4.5708776174896935,
-      "speaker_id": "2929"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1846/laugh/0074.wav",
-      "duration": 1.48,
-      "start_time": 5.474741670968076,
-      "speaker_id": "1846"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1846/cough/0092.wav",
-      "duration": 0.588149437405893,
-      "start_time": 4.118050953108567,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2929/cough/0089.wav",
-      "duration": 1.1940014375266559,
-      "start_time": 30.786451672277074,
-      "speaker_id": "2929"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015539.json b/conversations/conv_015539.json
deleted file mode 100644
index 849de75756220c52a217ab667e7ed78025ea6436..0000000000000000000000000000000000000000
--- a/conversations/conv_015539.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.1098874968704955,
-      "duration": 5.1098874968704955,
-      "start_frame": 0,
-      "duration_frames": 81758,
-      "overlap": false,
-      "utterance_id": "3835-178028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178028.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.026963708447921,
-      "end_time": 12.239883187786418,
-      "duration": 6.212919479338497,
-      "start_frame": 96431,
-      "duration_frames": 99406,
-      "overlap": false,
-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.155826314011936,
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-      "duration": 4.632132361106034,
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-      "utterance_id": "3835-178029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178029.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.33225208167866,
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-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 99406
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.440111345927086,
-      "end_time": 32.0,
-      "duration": 2.559888654072914,
-      "start_frame": 471041,
-      "duration_frames": 40958,
-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 87603
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 19.04853825965014,
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/576/laugh/0019.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/576/laugh/0079.wav",
-      "duration": 1.28,
-      "start_time": 28.393559892336597,
-      "speaker_id": "576"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2100/laugh/0060.wav",
-      "duration": 1.84,
-      "start_time": 30.16,
-      "speaker_id": "2100"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015542.json b/conversations/conv_015542.json
deleted file mode 100644
index 963d1077b2f37220d7b4fcdaf7c9d890feaebb26..0000000000000000000000000000000000000000
--- a/conversations/conv_015542.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.4971856171052806,
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-      "overlap": false,
-      "utterance_id": "6104-58845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58845.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.056676941561121,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-57477.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58845.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 55954
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 108596
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "6104",
-      "position_frames": 118829
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377982.wav",
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-    {
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-      "start_time": 0,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1444/cough/0034.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015549.json b/conversations/conv_015549.json
deleted file mode 100644
index f1be71a03c7417eea5b9dc02f43a5543af27e3f8..0000000000000000000000000000000000000000
--- a/conversations/conv_015549.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.19564071461618,
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-      "start_frame": 0,
-      "duration_frames": 99130,
-      "overlap": false,
-      "utterance_id": "7326-245693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-245693.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6388/cough/0038.wav",
-      "duration": 0.3710751027437929,
-      "start_time": 23.244995111053488,
-      "speaker_id": "6388"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015554.json b/conversations/conv_015554.json
deleted file mode 100644
index 02fbb7c6fb43e2f44ed1ec6697437a451f37eb17..0000000000000000000000000000000000000000
--- a/conversations/conv_015554.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.059516702927742,
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-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.477382118617328,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7424-98623.flac |",
-      "real_speaker_id": "7424",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
-      "start_time": 12.575203994985166,
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-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 80952
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.08662146881437,
-      "end_time": 22.86450906237238,
-      "duration": 3.7778875935580096,
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-      "overlap": false,
-      "utterance_id": "7424-98598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7424-98598.flac |",
-      "real_speaker_id": "7424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.723456876819125,
-      "end_time": 28.850230715609843,
-      "duration": 5.126773838790719,
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-      "duration_frames": 82028,
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-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 174627
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.170426773311682,
-      "end_time": 32.0,
-      "duration": 2.829573226688318,
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-      "duration_frames": 45273,
-      "overlap": false,
-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 29.11454225841921,
-      "speaker_id": "7552"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015558.json b/conversations/conv_015558.json
deleted file mode 100644
index cfe8c6d4d224bfd06dd904c9991fb6264aab42a4..0000000000000000000000000000000000000000
--- a/conversations/conv_015558.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
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-      "segment_id": "seg0003",
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-      "start_time": 18.577942798565324,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291384.flac |",
-      "real_speaker_id": "8619",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.091896224174793,
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-      "utterance_id": "3021-121440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121440.flac |",
-      "real_speaker_id": "3021",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291384.flac |",
-      "real_speaker_id": "8619",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "speaker_id": "8619"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015562.json b/conversations/conv_015562.json
deleted file mode 100644
index a89ccb560334c3b2d24bed396472ef60699675dd..0000000000000000000000000000000000000000
--- a/conversations/conv_015562.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137589.flac |",
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-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015574.json b/conversations/conv_015574.json
deleted file mode 100644
index e249eb33504266cc1af2c1c93387d68071e31319..0000000000000000000000000000000000000000
--- a/conversations/conv_015574.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3330-170956.flac |",
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-      "position_frames": 0
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8098/cough/0082.wav",
-      "duration": 0.9151571810240902,
-      "start_time": 19.77609651667526,
-      "speaker_id": "8098"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4192/cough/0032.wav",
-      "duration": 1.1263597462846449,
-      "start_time": 19.968419226910655,
-      "speaker_id": "4192"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015575.json b/conversations/conv_015575.json
deleted file mode 100644
index 767ab5184736e7d1027068f4d44a03e14b86bcd3..0000000000000000000000000000000000000000
--- a/conversations/conv_015575.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3532077785060244,
-      "duration": 3.3532077785060244,
-      "start_frame": 0,
-      "duration_frames": 53651,
-      "overlap": false,
-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8010167175769816,
-      "end_time": 8.642383590102707,
-      "duration": 4.841366872525724,
-      "start_frame": 60816,
-      "duration_frames": 77461,
-      "overlap": false,
-      "utterance_id": "6078-54013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54013.flac |",
-      "real_speaker_id": "6078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.512905644742906,
-      "end_time": 13.009087427016281,
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-      "duration_frames": 55938,
-      "overlap": false,
-      "utterance_id": "4189-115680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4189-115680.flac |",
-      "real_speaker_id": "4189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.549107771687366,
-      "end_time": 18.192064414040985,
-      "duration": 4.642956642353618,
-      "start_frame": 216785,
-      "duration_frames": 74287,
-      "overlap": false,
-      "utterance_id": "6078-54013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54013.flac |",
-      "real_speaker_id": "6078",
-      "position_frames": 77461
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.037579022563765,
-      "end_time": 23.269904418660136,
-      "duration": 4.23232539609637,
-      "start_frame": 304601,
-      "duration_frames": 67717,
-      "overlap": false,
-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 53651
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.760290278085957,
-      "end_time": 28.515077899316285,
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-      "utterance_id": "4189-274546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4189-274546.flac |",
-      "real_speaker_id": "4189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.96475551171764,
-      "end_time": 32.0,
-      "duration": 3.035244488282359,
-      "start_frame": 463436,
-      "duration_frames": 48563,
-      "overlap": false,
-      "utterance_id": "6378-61781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61781.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "duration": 0.7078920253213123,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4189/laugh/0112.wav",
-      "duration": 1.06,
-      "start_time": 10.809185004030828,
-      "speaker_id": "4189"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6378/laugh/0034.wav",
-      "duration": 1.2,
-      "start_time": 20.517748481849647,
-      "speaker_id": "6378"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6378/cough/0069.wav",
-      "duration": 0.9,
-      "start_time": 23.321322094603364,
-      "speaker_id": "6378"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4189/cough/0043.wav",
-      "duration": 1.158007869738988,
-      "start_time": 24.01508719511458,
-      "speaker_id": "4189"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015578.json b/conversations/conv_015578.json
deleted file mode 100644
index d2f619dc909f6b9636cd5392efed708c57df65a9..0000000000000000000000000000000000000000
--- a/conversations/conv_015578.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.129890901725966,
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-      "utterance_id": "6206-14960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14960.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 60516,
-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 56746
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.800042447767911,
-      "end_time": 20.75411788835286,
-      "duration": 6.954075440584947,
-      "start_frame": 220800,
-      "duration_frames": 111265,
-      "overlap": false,
-      "utterance_id": "4710-24606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-24606.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.14985162953395,
-      "end_time": 26.990422691622598,
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-      "utterance_id": "6206-14958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14958.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.631499990405715,
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-      "duration": 4.368500009594285,
-      "start_frame": 442103,
-      "duration_frames": 69896,
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-      "utterance_id": "4710-24607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-24607.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4710/laugh/0132.wav",
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-      "start_time": 16.00972951499755,
-      "speaker_id": "4710"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015581.json b/conversations/conv_015581.json
deleted file mode 100644
index b75bbf0b2fbf37ba77c00f28e97097ec71997fd5..0000000000000000000000000000000000000000
--- a/conversations/conv_015581.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 101696,
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-      "utterance_id": "2254-152825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152825.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "1926-147979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147979.flac |",
-      "real_speaker_id": "1926",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2254-152831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152831.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1926-143879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-143879.flac |",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015597.json b/conversations/conv_015597.json
deleted file mode 100644
index 063d99923b5a75df5b2400623e7e614b8c2f87b8..0000000000000000000000000000000000000000
--- a/conversations/conv_015597.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.080460547162527,
-  "num_speakers": 2,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration_frames": 63644,
-      "overlap": false,
-      "utterance_id": "1639-132848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.25200242548604,
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-    {
-      "segment_id": "seg0002",
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-63505.flac |",
-      "real_speaker_id": "7246",
-      "position_frames": 61559
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-      "duration": 1.72,
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015606.json b/conversations/conv_015606.json
deleted file mode 100644
index 1ea5a2cc6c8ebff87d1d10e272b3fc83085e4380..0000000000000000000000000000000000000000
--- a/conversations/conv_015606.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1641-130504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130504.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130504.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 105726
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130504.flac |",
-      "real_speaker_id": "1641",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.471416502737178,
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-      "duration": 3.5285834972628223,
-      "start_frame": 455542,
-      "duration_frames": 56457,
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-      "utterance_id": "1641-130504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130504.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 268317
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015610.json b/conversations/conv_015610.json
deleted file mode 100644
index 9cc12df245c4de26ce29d4ff10b2769d4c274e1b..0000000000000000000000000000000000000000
--- a/conversations/conv_015610.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-      "utterance_id": "4583-16044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4583-16044.flac |",
-      "real_speaker_id": "4583",
-      "position_frames": 0
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-      "real_speaker_id": "409",
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-      "real_speaker_id": "8534",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216564.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 145841
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015621.json b/conversations/conv_015621.json
deleted file mode 100644
index 45a64f56bb663c46acbba665bc4acb18be7883f7..0000000000000000000000000000000000000000
--- a/conversations/conv_015621.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6415-111615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015626.json b/conversations/conv_015626.json
deleted file mode 100644
index b2ab7d1a564d426a4c47f4162d0a881e0309e597..0000000000000000000000000000000000000000
--- a/conversations/conv_015626.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "1874",
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-      "utterance_id": "6333-39676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39676.flac |",
-      "real_speaker_id": "6333",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_015630.json b/conversations/conv_015630.json
deleted file mode 100644
index cd171f62d761b970b3b5edd9d1cf2cc92f8976e4..0000000000000000000000000000000000000000
--- a/conversations/conv_015630.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.128863993765364,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "664-129011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
-      "real_speaker_id": "664",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 5.217210323261048,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-122809.flac |",
-      "real_speaker_id": "439",
-      "position_frames": 0
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-      "real_speaker_id": "1061",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-123866.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015637.json b/conversations/conv_015637.json
deleted file mode 100644
index 8fd9ed13325226d3d9288e58e0c7dcca7486c84a..0000000000000000000000000000000000000000
--- a/conversations/conv_015637.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 25.656082375866575,
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-      "utterance_id": "7843-110055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7843-110055.flac |",
-      "real_speaker_id": "7843",
-      "position_frames": 106952
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4222-187005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-187005.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7843/laugh/0065.wav",
-      "duration": 1.2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_015647.json b/conversations/conv_015647.json
deleted file mode 100644
index 2aa259e3db3337ce479668d0a8bb61789094a4d9..0000000000000000000000000000000000000000
--- a/conversations/conv_015647.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7197-66277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.1675897296237405,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 75055
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "4161",
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-    {
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-      "real_speaker_id": "7197",
-      "position_frames": 168395
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.5678304764346045,
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-      "utterance_id": "7514-96429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 87011
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "7514"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015651.json b/conversations/conv_015651.json
deleted file mode 100644
index ddda0371f5553ed062df5fbc9810e83c0502f5c6..0000000000000000000000000000000000000000
--- a/conversations/conv_015651.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.288016986855062,
-      "duration": 4.288016986855062,
-      "start_frame": 0,
-      "duration_frames": 68608,
-      "overlap": false,
-      "utterance_id": "2762-160610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2762-160610.flac |",
-      "real_speaker_id": "2762",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.028635606401468,
-      "end_time": 8.76966597656794,
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-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.938165241056977,
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-      "overlap": true,
-      "utterance_id": "255-121534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/255-121534.flac |",
-      "real_speaker_id": "255",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.8521456416425,
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-      "duration": 3.757854125015107,
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-      "duration_frames": 60125,
-      "overlap": false,
-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 59856
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.28528827232031,
-      "end_time": 22.36418370317367,
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-      "duration_frames": 49262,
-      "overlap": false,
-      "utterance_id": "2762-142778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2762-142778.flac |",
-      "real_speaker_id": "2762",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.832373844385852,
-      "end_time": 29.128040458443646,
-      "duration": 6.295666614057795,
-      "start_frame": 365317,
-      "duration_frames": 100730,
-      "overlap": false,
-      "utterance_id": "255-121534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/255-121534.flac |",
-      "real_speaker_id": "255",
-      "position_frames": 54012
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.632927851052862,
-      "end_time": 32.0,
-      "duration": 2.3670721489471376,
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-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 119981
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.44,
-      "start_time": 9.009002358993149,
-      "speaker_id": "45"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/laugh/0021.wav",
-      "duration": 1.24,
-      "start_time": 15.952045225572192,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/255/laugh/0046.wav",
-      "duration": 0.9812137114618249,
-      "start_time": 21.69185722395363,
-      "speaker_id": "255"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015660.json b/conversations/conv_015660.json
deleted file mode 100644
index c1a1726f89d82796525802504582eb330fc74d81..0000000000000000000000000000000000000000
--- a/conversations/conv_015660.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4594-901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-901.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.942558785929021,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-901.flac |",
-      "real_speaker_id": "4594",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "205-123882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-123882.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.82895746868142,
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-      "overlap": false,
-      "utterance_id": "5043-28402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28402.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.30087624623702,
-      "end_time": 30.357356606018726,
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-      "overlap": false,
-      "utterance_id": "205-159056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-159056.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.569803391565387,
-      "end_time": 32.0,
-      "duration": 1.4301966084346134,
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-      "duration_frames": 22883,
-      "overlap": false,
-      "utterance_id": "4594-901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-901.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 194297
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-      "start_time": 26.98243548945334
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-      "start_time": 4.865982071344087
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4594/laugh/0007.wav",
-      "duration": 1.6,
-      "start_time": 7.097330939191934,
-      "speaker_id": "4594"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015667.json b/conversations/conv_015667.json
deleted file mode 100644
index 65353ee921ab50d7f74a811bb15618e6f8871062..0000000000000000000000000000000000000000
--- a/conversations/conv_015667.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.911469939485426,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164100.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
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-    {
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122453.flac |",
-      "real_speaker_id": "1878",
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-    {
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-      "utterance_id": "2992-164101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164101.flac |",
-      "real_speaker_id": "2992",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22885.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1878-122453",
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-      "real_speaker_id": "1878",
-      "position_frames": 83580
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "2992-164100",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1878/laugh/0023.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2992/laugh/0112.wav",
-      "duration": 1.04,
-      "start_time": 15.843877126539233,
-      "speaker_id": "2992"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/107/laugh/0021.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "2992"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015671.json b/conversations/conv_015671.json
deleted file mode 100644
index 871a7ef22a1c6a6f3a469c30cc774dadd4732913..0000000000000000000000000000000000000000
--- a/conversations/conv_015671.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.166476014246186,
-      "duration": 6.166476014246186,
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-      "utterance_id": "614-6500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6399-278844",
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-      "real_speaker_id": "6399",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "614-161065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-161065.flac |",
-      "real_speaker_id": "614",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6399-278847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278847.flac |",
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-    {
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-    {
-      "segment_id": "seg0005",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3972/cough/0035.wav",
-      "duration": 0.554486101208406,
-      "start_time": 22.468437625282405,
-      "speaker_id": "3972"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6399/laugh/0001.wav",
-      "duration": 0.835514399735678,
-      "start_time": 31.16448560026432,
-      "speaker_id": "6399"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015676.json b/conversations/conv_015676.json
deleted file mode 100644
index 5bc5011d974765a3f05ee3708507fd15a80350e1..0000000000000000000000000000000000000000
--- a/conversations/conv_015676.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.169334142538082,
-      "duration": 5.169334142538082,
-      "start_frame": 0,
-      "duration_frames": 82709,
-      "overlap": false,
-      "utterance_id": "3738-176682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176682.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.5827603594987565,
-      "end_time": 9.707442674733636,
-      "duration": 4.12468231523488,
-      "start_frame": 89324,
-      "duration_frames": 65994,
-      "overlap": false,
-      "utterance_id": "7062-96512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-96512.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.887875242069894,
-      "end_time": 16.65200293243504,
-      "duration": 6.764127690365143,
-      "start_frame": 158206,
-      "duration_frames": 108226,
-      "overlap": false,
-      "utterance_id": "7062-75816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-75816.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.470353616277592,
-      "end_time": 20.68030230443714,
-      "duration": 4.20994868815955,
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-      "duration_frames": 67359,
-      "overlap": true,
-      "utterance_id": "3738-164927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-164927.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.547176316536103,
-      "end_time": 27.505036698298387,
-      "duration": 4.957860381762285,
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-      "overlap": false,
-      "utterance_id": "7062-75816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-75816.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 108226
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.907643812098634,
-      "end_time": 32.0,
-      "duration": 4.092356187901366,
-      "start_frame": 446522,
-      "duration_frames": 65477,
-      "overlap": false,
-      "utterance_id": "2990-6535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2990-6535.flac |",
-      "real_speaker_id": "2990",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
-      "duration": 2.8358623507745047,
-      "start_time": 19.15954626523986
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.9447845804988662,
-      "start_time": 1.5282798685123742
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3738/laugh/0103.wav",
-      "duration": 1.4142945074379378,
-      "start_time": 0,
-      "speaker_id": "3738"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3738/cough/0127.wav",
-      "duration": 1.1820078677752082,
-      "start_time": 5.320070678301323,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7062/laugh/0072.wav",
-      "duration": 0.7150793522275894,
-      "start_time": 9.974661564678652,
-      "speaker_id": "7062"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 0.948035365208967,
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-      "speaker_id": "7062"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7062/laugh/0097.wav",
-      "duration": 1.44,
-      "start_time": 8.284267492679446,
-      "speaker_id": "7062"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3738/laugh/0128.wav",
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-      "speaker_id": "3738"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3738/cough/0052.wav",
-      "duration": 0.8288694073000111,
-      "start_time": 15.598351033254843,
-      "speaker_id": "3738"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2990/cough/0078.wav",
-      "duration": 0.9782835117609414,
-      "start_time": 30.119556178458858,
-      "speaker_id": "2990"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015684.json b/conversations/conv_015684.json
deleted file mode 100644
index e9cdb49e46a43f70b2118c7f875cde13cdf18afa..0000000000000000000000000000000000000000
--- a/conversations/conv_015684.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.543839850887638,
-      "duration": 6.543839850887638,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1025-92814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-92814.flac |",
-      "real_speaker_id": "1025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.551462159515223,
-      "end_time": 11.78399264414277,
-      "duration": 5.232530484627547,
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-      "overlap": true,
-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.883098806931258,
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-      "duration": 3.843172092815627,
-      "start_frame": 206129,
-      "duration_frames": 61490,
-      "overlap": false,
-      "utterance_id": "6078-54013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54013.flac |",
-      "real_speaker_id": "6078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.36436305981076,
-      "end_time": 23.863160706771524,
-      "duration": 6.498797646960765,
-      "start_frame": 277829,
-      "duration_frames": 103980,
-      "overlap": false,
-      "utterance_id": "1025-75365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-75365.flac |",
-      "real_speaker_id": "1025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.641112136684562,
-      "end_time": 29.656722219089932,
-      "duration": 5.01561008240537,
-      "start_frame": 394257,
-      "duration_frames": 80249,
-      "overlap": false,
-      "utterance_id": "6078-54013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54013.flac |",
-      "real_speaker_id": "6078",
-      "position_frames": 61490
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.14308528685574,
-      "end_time": 32.0,
-      "duration": 1.8569147131442598,
-      "start_frame": 482289,
-      "duration_frames": 29710,
-      "overlap": false,
-      "utterance_id": "1025-92820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-92820.flac |",
-      "real_speaker_id": "1025",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
-      "duration": 0.31501133786848073,
-      "start_time": 18.611030018773842
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/249/cough/0033.wav",
-      "duration": 1.0993277973026092,
-      "start_time": 11.864676817647132,
-      "speaker_id": "249"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1025/cough/0039.wav",
-      "duration": 0.96,
-      "start_time": 23.909967587895352,
-      "speaker_id": "1025"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015688.json b/conversations/conv_015688.json
deleted file mode 100644
index 821ac9ddc8b05e371044afe9befff4f492f12827..0000000000000000000000000000000000000000
--- a/conversations/conv_015688.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.313890777302376,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.908174106353759,
-      "duration": 3.908174106353759,
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-      "duration_frames": 62530,
-      "overlap": false,
-      "utterance_id": "66-355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-355.flac |",
-      "real_speaker_id": "66",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.812678270573148,
-      "end_time": 10.464998880804938,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-355.flac |",
-      "real_speaker_id": "66",
-      "position_frames": 62530
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.7196551633012,
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-      "duration_frames": 59030,
-      "overlap": true,
-      "utterance_id": "7245-104888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.345552271534826,
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-      "overlap": false,
-      "utterance_id": "8098-278278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8098-278278.flac |",
-      "real_speaker_id": "8098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.37652321955624,
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-      "utterance_id": "7245-104890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104890.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.578349025819026,
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-      "duration_frames": 60627,
-      "overlap": false,
-      "utterance_id": "66-354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-354.flac |",
-      "real_speaker_id": "66",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.685976889390243,
-      "end_time": 31.313890777302376,
-      "duration": 1.6279138879121327,
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-      "duration_frames": 26046,
-      "overlap": true,
-      "utterance_id": "7245-104886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104886.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 21.05861678004535,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/66/laugh/0062.wav",
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-      "speaker_id": "66"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8098/laugh/0022.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.3862986581823431,
-      "start_time": 20.90679513057655,
-      "speaker_id": "8098"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015692.json b/conversations/conv_015692.json
deleted file mode 100644
index 4259ffdc029d9c7a4ba3ade6cce4a98090fd82e0..0000000000000000000000000000000000000000
--- a/conversations/conv_015692.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.2594171942128085,
-      "duration": 3.2594171942128085,
-      "start_frame": 0,
-      "duration_frames": 52150,
-      "overlap": false,
-      "utterance_id": "815-130569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130569.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7495859912778315,
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-      "overlap": false,
-      "utterance_id": "815-130105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130105.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 90028,
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-      "utterance_id": "6209-34600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34600.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "8011-117866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130105.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 104860
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-111754.flac |",
-      "real_speaker_id": "8011",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/815/laugh/0058.wav",
-      "duration": 0.8624496125041481,
-      "start_time": 8.095063079075546,
-      "speaker_id": "815"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6209/laugh/0042.wav",
-      "duration": 1.2,
-      "start_time": 16.23405316026218,
-      "speaker_id": "6209"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015699.json b/conversations/conv_015699.json
deleted file mode 100644
index e73c6eb85e37963f57258a073408147b108d2410..0000000000000000000000000000000000000000
--- a/conversations/conv_015699.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.68257534311137,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6167-73973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-73973.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.239960803969369,
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-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.58727863989278,
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-      "duration_frames": 111439,
-      "overlap": false,
-      "utterance_id": "6167-282391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-282391.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.766832355532834,
-      "end_time": 24.922561792950333,
-      "duration": 5.1557294374175004,
-      "start_frame": 316269,
-      "duration_frames": 82491,
-      "overlap": false,
-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 107412
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.189677594623667,
-      "end_time": 31.68257534311137,
-      "duration": 6.492897748487702,
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-      "overlap": true,
-      "utterance_id": "8023-286247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286247.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
-      "duration": 0.7219727891156462,
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-      "start_time": 4.111658326437827
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4652/laugh/0011.wav",
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-      "speaker_id": "4652"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015702.json b/conversations/conv_015702.json
deleted file mode 100644
index 7af96bd552dabe350211dd75da5da36158006757..0000000000000000000000000000000000000000
--- a/conversations/conv_015702.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.44517684979353,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.577496346881763,
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-      "overlap": false,
-      "utterance_id": "5290-26685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-26685.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "5092-28465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.01247426788143,
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-      "utterance_id": "1187-136241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136241.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.863296218024217,
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-      "duration": 4.581880631769312,
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-      "duration_frames": 73310,
-      "overlap": false,
-      "utterance_id": "5092-28462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28462.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "speaker_id": "5290"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015709.json b/conversations/conv_015709.json
deleted file mode 100644
index 3ed4bf346bf71bd8cd5d31d7dc337b2ad452d82f..0000000000000000000000000000000000000000
--- a/conversations/conv_015709.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.205759987940823,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 4.7462288644041255,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7780-274562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7780-274562.flac |",
-      "real_speaker_id": "7780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.529042859326108,
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-      "utterance_id": "8675-295195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-295195.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 50919,
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-      "utterance_id": "5136-5094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-5094.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.865591278124725,
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-      "utterance_id": "8675-292352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "5136",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7780-274562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7780-274562.flac |",
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-      "position_frames": 75939
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5136/laugh/0063.wav",
-      "duration": 1.0,
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-      "speaker_id": "5136"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015714.json b/conversations/conv_015714.json
deleted file mode 100644
index 776a8e84ad921e109a079c6c7cdbac020c4616bb..0000000000000000000000000000000000000000
--- a/conversations/conv_015714.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.130885580234407,
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-      "utterance_id": "4234-40345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-40345.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.346497461054199,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64469.flac |",
-      "real_speaker_id": "6534",
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-      "segment_id": "seg0002",
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-      "utterance_id": "2380-152158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64470.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-187750.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2380-152158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64470.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 70889
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-      "speaker_id": "6534"
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-      "event_class": "laugh",
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-      "start_time": 19.892565072118455,
-      "speaker_id": "4234"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015718.json b/conversations/conv_015718.json
deleted file mode 100644
index d8aa31bc3a9e2d85cce367f574388b9cd51ec31b..0000000000000000000000000000000000000000
--- a/conversations/conv_015718.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4273-188161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188161.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-65803.flac |",
-      "real_speaker_id": "5489",
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-      "utterance_id": "4273-188162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188162.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 15.723869104934618,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-10988.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.422115984576568,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188162.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 70338
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.472433720984597,
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-      "duration": 3.527566279015403,
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-      "overlap": false,
-      "utterance_id": "927-132462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132462.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015719.json b/conversations/conv_015719.json
deleted file mode 100644
index c9c5b2a7c141efa7fac9ace85e20c2f89ed0ecd7..0000000000000000000000000000000000000000
--- a/conversations/conv_015719.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135020.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
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-      "real_speaker_id": "742",
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-      "speaker_id": 0,
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-      "utterance_id": "1313-135020",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154825.flac |",
-      "real_speaker_id": "2518",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "1313",
-      "position_frames": 0
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-  ],
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-    {
-      "event_class": "Vacuum_cleaner",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1313/cough/0112.wav",
-      "duration": 0.6768074370637032,
-      "start_time": 21.305088657533165,
-      "speaker_id": "1313"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015722.json b/conversations/conv_015722.json
deleted file mode 100644
index 7eb3e98a1b9c90818f82536a35db1bd8f587d701..0000000000000000000000000000000000000000
--- a/conversations/conv_015722.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1084-151395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-151395.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/976-131095.flac |",
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-      "real_speaker_id": "976",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "104",
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-      "speaker_id": 0,
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-      "real_speaker_id": "1084",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015725.json b/conversations/conv_015725.json
deleted file mode 100644
index dea5f8940dd6d6aa9d1ecb8342492d07cba768b1..0000000000000000000000000000000000000000
--- a/conversations/conv_015725.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.369426535415368,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "8388-275212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-275212.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_015733.json b/conversations/conv_015733.json
deleted file mode 100644
index 6a41a7081333ad907ba499e91427167de19929a3..0000000000000000000000000000000000000000
--- a/conversations/conv_015733.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.033030166580843,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6519-69411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-69411.flac |",
-      "real_speaker_id": "6519",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.4826634368891,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-62512.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-69411.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.443436314189512,
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-      "utterance_id": "6540-62512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-62512.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 73595
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-      "segment_id": "seg0005",
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-      "utterance_id": "6509-76574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6509-76574.flac |",
-      "real_speaker_id": "6509",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6509-76574.flac |",
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-  "foreground_events": [
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-      "start_time": 30.28,
-      "speaker_id": "6509"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015734.json b/conversations/conv_015734.json
deleted file mode 100644
index f024a010bb8e1d906d8716beccb217c726adb4b0..0000000000000000000000000000000000000000
--- a/conversations/conv_015734.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.255121001554766,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14960.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8072-284670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14960.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 158437
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015738.json b/conversations/conv_015738.json
deleted file mode 100644
index 4b08f6def861f04a4a2e42777f51f87bcaad0efd..0000000000000000000000000000000000000000
--- a/conversations/conv_015738.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "6339-65554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
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-      "real_speaker_id": "612",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "612",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 0.8721401095676846,
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-      "real_speaker_id": "6339",
-      "position_frames": 194232
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/612/laugh/0026.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6339/laugh/0009.wav",
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-      "speaker_id": "6339"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015743.json b/conversations/conv_015743.json
deleted file mode 100644
index 0d641790a342718b2ff8e015d555de47361c3fab..0000000000000000000000000000000000000000
--- a/conversations/conv_015743.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "167-68704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-68704.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 0
-    },
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\ No newline at end of file
diff --git a/conversations/conv_015755.json b/conversations/conv_015755.json
deleted file mode 100644
index 3628c815661df53029a95551e7a449d6191b4f6a..0000000000000000000000000000000000000000
--- a/conversations/conv_015755.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "133",
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-      "segment_id": "seg0005",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_015759.json b/conversations/conv_015759.json
deleted file mode 100644
index b87ef6d9d76982dfbc5a16b068d65a47956220ff..0000000000000000000000000000000000000000
--- a/conversations/conv_015759.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1646",
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-      "speaker_id": 1,
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-      "position_frames": 77434
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015763.json b/conversations/conv_015763.json
deleted file mode 100644
index e4b1df9e14ca843a06b43a481faf52a600eddca0..0000000000000000000000000000000000000000
--- a/conversations/conv_015763.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123135.flac |",
-      "real_speaker_id": "820",
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-      "real_speaker_id": "820",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015764.json b/conversations/conv_015764.json
deleted file mode 100644
index 290a0cb4376e558728f7d3afb62f9b2875d63262..0000000000000000000000000000000000000000
--- a/conversations/conv_015764.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
-      "real_speaker_id": "6670",
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-      "segment_id": "seg0005",
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-      "start_time": 31.02,
-      "speaker_id": "4260"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_015772.json b/conversations/conv_015772.json
deleted file mode 100644
index 87d70610b26e4366519c6f48ec2fffb6863b8c91..0000000000000000000000000000000000000000
--- a/conversations/conv_015772.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121398.flac |",
-      "real_speaker_id": "274",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121382.flac |",
-      "real_speaker_id": "274",
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-      "speaker_id": 0,
-      "start_time": 20.07436525241813,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 61300
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "274-121392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121392.flac |",
-      "real_speaker_id": "274",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.146606181188467,
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-      "duration": 0.8533938188115329,
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015775.json b/conversations/conv_015775.json
deleted file mode 100644
index 061052d30ab35057e7d8fe4bc2d58e328211e4f0..0000000000000000000000000000000000000000
--- a/conversations/conv_015775.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-56723.flac |",
-      "real_speaker_id": "5038",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-68704.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
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-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-68704.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 106672
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "671-131040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5038-31917",
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-      "real_speaker_id": "5038",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Blender",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "start_time": 30.68,
-      "speaker_id": "5038"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015779.json b/conversations/conv_015779.json
deleted file mode 100644
index ae2fe91933b373eb5f5bc0dd56b30d4ddad179c8..0000000000000000000000000000000000000000
--- a/conversations/conv_015779.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "utterance_id": "2573-178449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-178449.flac |",
-      "real_speaker_id": "2573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.043888950032924,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-178449.flac |",
-      "real_speaker_id": "2573",
-      "position_frames": 80562
-    },
-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "2533-149939",
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-      "real_speaker_id": "2533",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/laugh/0026.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2533/laugh/0006.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015780.json b/conversations/conv_015780.json
deleted file mode 100644
index 92953457df8c5b540cbec62c77faeecbb7e552ed..0000000000000000000000000000000000000000
--- a/conversations/conv_015780.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-  "background_events": [],
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015796.json b/conversations/conv_015796.json
deleted file mode 100644
index 2ee9dc6451014a759e94a3b09939c0917376bccb..0000000000000000000000000000000000000000
--- a/conversations/conv_015796.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280359.flac |",
-      "real_speaker_id": "8108",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280359.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015807.json b/conversations/conv_015807.json
deleted file mode 100644
index 8f918af57b23df3a6ea619b33ccf934342cb416c..0000000000000000000000000000000000000000
--- a/conversations/conv_015807.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-44344.flac |",
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-      "real_speaker_id": "2494",
-      "position_frames": 0
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015811.json b/conversations/conv_015811.json
deleted file mode 100644
index 05d530fdfb8d830a9e4fa0d66804caf126e6de5e..0000000000000000000000000000000000000000
--- a/conversations/conv_015811.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
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-  "background_events": [
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-      "start_time": 30.72,
-      "speaker_id": "713"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015826.json b/conversations/conv_015826.json
deleted file mode 100644
index 31b39ca98c7374f7f49b886650b2e59740796d3f..0000000000000000000000000000000000000000
--- a/conversations/conv_015826.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-142896.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1265-135635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 58075
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-      "segment_id": "seg0005",
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-      "utterance_id": "1463-134463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134463.flac |",
-      "real_speaker_id": "1463",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015827.json b/conversations/conv_015827.json
deleted file mode 100644
index 005be4db24c9de15475b704d0172d619d559c677..0000000000000000000000000000000000000000
--- a/conversations/conv_015827.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.064503886361877,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
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-      "real_speaker_id": "3540",
-      "position_frames": 119330
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015831.json b/conversations/conv_015831.json
deleted file mode 100644
index df3766f2bc9440d2f8909bb65b6bb1e7c2b87c05..0000000000000000000000000000000000000000
--- a/conversations/conv_015831.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2532-154838",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-154838.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.04575130110362,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "2532-163402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-163402.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 134638
-    },
-    {
-      "segment_id": "seg0006",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2532/laugh/0000.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015846.json b/conversations/conv_015846.json
deleted file mode 100644
index bdaf2f5795326309ce1dd5ed843390447dd2891e..0000000000000000000000000000000000000000
--- a/conversations/conv_015846.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2754-161902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2754-161902.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "1212",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_11.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7512/laugh/0035.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "1212"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015850.json b/conversations/conv_015850.json
deleted file mode 100644
index dbb57f5cf08d87ca5eb24a8647cbdfe19945ca79..0000000000000000000000000000000000000000
--- a/conversations/conv_015850.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122619.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123135.flac |",
-      "real_speaker_id": "820",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123135.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
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-  "foreground_events": [
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-      "speaker_id": "820"
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_015866.json b/conversations/conv_015866.json
deleted file mode 100644
index 6670b3c31dfe636b74f60be61e7763dd8aa70c3a..0000000000000000000000000000000000000000
--- a/conversations/conv_015866.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1536.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1532.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
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-      "utterance_id": "70-121130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121130.flac |",
-      "real_speaker_id": "70",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.5355592251982,
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-      "duration": 2.464440774801801,
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-      "overlap": false,
-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 58938
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015870.json b/conversations/conv_015870.json
deleted file mode 100644
index d4b353a015fab5744d60cab09edc9cfe307f46e1..0000000000000000000000000000000000000000
--- a/conversations/conv_015870.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-163935.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "1335-27593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-27593.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143255.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.70950216131832,
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1335/laugh/0042.wav",
-      "duration": 1.36,
-      "start_time": 0,
-      "speaker_id": "1335"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 10.949791395996149,
-      "speaker_id": "1335"
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 21.275495101471364,
-      "speaker_id": "2003"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015871.json b/conversations/conv_015871.json
deleted file mode 100644
index f08bba96914f266e8ac5732878bda47e14938993..0000000000000000000000000000000000000000
--- a/conversations/conv_015871.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156154.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139404.flac |",
-      "real_speaker_id": "1445",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.329968822241113,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156153.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.97208026479666,
-      "end_time": 22.41893268936204,
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-      "utterance_id": "505-125272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125272.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "505-125258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125258.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_015885.json b/conversations/conv_015885.json
deleted file mode 100644
index 93dfddbab8861a87865319b7f39e4437ef157312..0000000000000000000000000000000000000000
--- a/conversations/conv_015885.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.023289994883086,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "2491",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2491-134787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
-      "real_speaker_id": "2491",
-      "position_frames": 158073
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 64623
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_015889.json b/conversations/conv_015889.json
deleted file mode 100644
index 6df3866488f6afa9babc9e90653b2c395725cefb..0000000000000000000000000000000000000000
--- a/conversations/conv_015889.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135062.flac |",
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-      "utterance_id": "3923-181420",
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\ No newline at end of file
diff --git a/conversations/conv_015893.json b/conversations/conv_015893.json
deleted file mode 100644
index 44223af58c25f07039a44878018a0fe84870479b..0000000000000000000000000000000000000000
--- a/conversations/conv_015893.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "1646-121406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121406.flac |",
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-      "speaker_id": "3261"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015903.json b/conversations/conv_015903.json
deleted file mode 100644
index 09e62b226bec8c07f385b15b2933c321299a8e9f..0000000000000000000000000000000000000000
--- a/conversations/conv_015903.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.841060948632553,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "5514-19192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19192.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.2386112246968715,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19192.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 51833
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-      "segment_id": "seg0002",
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-      "start_time": 9.44347190183296,
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-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.071306607796867,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 87411
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.221102683034808,
-      "end_time": 26.45981142815815,
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-      "utterance_id": "6211-66279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-66279.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.85247186377029,
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-      "utterance_id": "6211-62844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-62844.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5514/laugh/0040.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5514/laugh/0019.wav",
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-      "start_time": 15.087671593841417,
-      "speaker_id": "5514"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015908.json b/conversations/conv_015908.json
deleted file mode 100644
index 0b0d8d28c3edb44f32f8b98f5b13d8af071db76e..0000000000000000000000000000000000000000
--- a/conversations/conv_015908.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.488786509610527,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-111913.flac |",
-      "real_speaker_id": "7946",
-      "position_frames": 0
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-      "utterance_id": "7946-111913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-111913.flac |",
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-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.324336717880957,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-111913.flac |",
-      "real_speaker_id": "7946",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015915.json b/conversations/conv_015915.json
deleted file mode 100644
index dd52230332951725a16c0eee9c3d5c9565dd14b7..0000000000000000000000000000000000000000
--- a/conversations/conv_015915.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134785.flac |",
-      "real_speaker_id": "2498",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
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-      "real_speaker_id": "8262",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_015919.json b/conversations/conv_015919.json
deleted file mode 100644
index 5d7d050dc92be75fd66d3470c1ca50f29152bcca..0000000000000000000000000000000000000000
--- a/conversations/conv_015919.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-132610.flac |",
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.16,
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-      "speaker_id": "2096"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_015923.json b/conversations/conv_015923.json
deleted file mode 100644
index c578c279ff0b6f296b6ef34d81fc9da67f68ef44..0000000000000000000000000000000000000000
--- a/conversations/conv_015923.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
-      "end_time": 6.611778601298289,
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-      "utterance_id": "7467-261121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 6.792817182822942,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 9.508228368134759,
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-      "overlap": true,
-      "utterance_id": "1334-135589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1334-135589.flac |",
-      "real_speaker_id": "1334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.68199100463395,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1334-135589.flac |",
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-      "position_frames": 93296
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-      "speaker_id": 1,
-      "start_time": 24.106265550003663,
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-      "utterance_id": "1334-135589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1334-135589.flac |",
-      "real_speaker_id": "1334",
-      "position_frames": 193181
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.891953003627826,
-      "end_time": 32.0,
-      "duration": 2.108046996372174,
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-      "utterance_id": "7467-69610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 49666
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_015934.json b/conversations/conv_015934.json
deleted file mode 100644
index a696c11913fd5c2355edc2ad2063a771325c05e0..0000000000000000000000000000000000000000
--- a/conversations/conv_015934.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "1614-13785",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-13785.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
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-    {
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-      "start_time": 4.948951195895312,
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
-      "real_speaker_id": "4699",
-      "position_frames": 61126
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-    {
-      "segment_id": "seg0006",
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-      "real_speaker_id": "1614",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 27.3467780191095,
-      "speaker_id": "4699"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015935.json b/conversations/conv_015935.json
deleted file mode 100644
index 673c0e545d6a50d8fbd2c4ac01e10c639b9012c4..0000000000000000000000000000000000000000
--- a/conversations/conv_015935.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
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-      "position_frames": 0
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-      "position_frames": 83987
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 31.16,
-      "speaker_id": "1779"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015939.json b/conversations/conv_015939.json
deleted file mode 100644
index 8dd6f49b558511bff7cf6917e6cbe906b8e28a81..0000000000000000000000000000000000000000
--- a/conversations/conv_015939.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.39124683776243,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "20-205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/20-205.flac |",
-      "real_speaker_id": "20",
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 3.452950949454504,
-      "speaker_id": "4021"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/20/laugh/0024.wav",
-      "duration": 0.6278773364424506,
-      "start_time": 13.888162273310506,
-      "speaker_id": "20"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015942.json b/conversations/conv_015942.json
deleted file mode 100644
index d5a58fac963f0d4d609261a2e479fa0832a63fc3..0000000000000000000000000000000000000000
--- a/conversations/conv_015942.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.88691956240543,
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-      "overlap": false,
-      "utterance_id": "1624-142933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.507297088623024,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
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-      "position_frames": 110190
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.682373908891673,
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-      "utterance_id": "1624-168623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-168623.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.654902880108835,
-      "end_time": 28.429091227291664,
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-      "duration_frames": 92387,
-      "overlap": false,
-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 52724
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.867411079338012,
-      "end_time": 32.0,
-      "duration": 3.1325889206619877,
-      "start_frame": 461878,
-      "duration_frames": 50121,
-      "overlap": false,
-      "utterance_id": "1624-142933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 177889
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-      "duration": 1.28,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.76,
-      "start_time": 27.049154620480795,
-      "speaker_id": "1624"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015949.json b/conversations/conv_015949.json
deleted file mode 100644
index 6e46c4ca2d21f66ce7f2ed7d342dfb1e0b2dd355..0000000000000000000000000000000000000000
--- a/conversations/conv_015949.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.611751726066224,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "3238-134398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "3238-134398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 56309
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6276-62021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-62021.flac |",
-      "real_speaker_id": "6276",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.503762004529705,
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-      "duration_frames": 97727,
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-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 82763
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 27.34985715160142,
-      "speaker_id": "7145"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015954.json b/conversations/conv_015954.json
deleted file mode 100644
index 4f34002509361d887ca2dfbbcbfa0a7b5f224ebe..0000000000000000000000000000000000000000
--- a/conversations/conv_015954.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5123-29120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "5655-46267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46267.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 68124
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/249/laugh/0064.wav",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015958.json b/conversations/conv_015958.json
deleted file mode 100644
index 4251a7eb1494090a944268ad7f708f6f2bfc6396..0000000000000000000000000000000000000000
--- a/conversations/conv_015958.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7269.flac |",
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-      "real_speaker_id": "3307",
-      "position_frames": 108733
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.98232920327007,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145138.flac |",
-      "real_speaker_id": "3307",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_0.wav",
-      "duration": 0.2146485260770975,
-      "start_time": 17.642687225207908
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
-      "duration": 3.5032233803297212,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8531/laugh/0085.wav",
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-      "speaker_id": "8531"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015962.json b/conversations/conv_015962.json
deleted file mode 100644
index 0c3419058b6c5edf204678d0707d4e4db0bc1264..0000000000000000000000000000000000000000
--- a/conversations/conv_015962.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8643-298549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-298549.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.675827096053115,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
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-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.86453913876169,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-269254.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8643-269254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-269254.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 83329
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.25570501404806,
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-      "duration": 3.7442949859519388,
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-      "utterance_id": "1034-121119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
-      "position_frames": 66189
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_015963.json b/conversations/conv_015963.json
deleted file mode 100644
index f1648d7573514ade4c8bfac4390cbf4daf5d8c5d..0000000000000000000000000000000000000000
--- a/conversations/conv_015963.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "5147-32137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32137.flac |",
-      "real_speaker_id": "5147",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "7312",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.26164881065921,
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-      "utterance_id": "4899-32658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32658.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-      "speaker_id": "5147"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015974.json b/conversations/conv_015974.json
deleted file mode 100644
index 21d66a49a49e5e314c9aa30851ecedf5b097d341..0000000000000000000000000000000000000000
--- a/conversations/conv_015974.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "7250",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_015978.json b/conversations/conv_015978.json
deleted file mode 100644
index 25a7c20ff6dd9c65f29528a8359b6777003eba2b..0000000000000000000000000000000000000000
--- a/conversations/conv_015978.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1051-133881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1051-133881.flac |",
-      "real_speaker_id": "1051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1051-133886.flac |",
-      "real_speaker_id": "1051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.171881213330714,
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-      "duration": 3.828118786669286,
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-      "utterance_id": "6006-60489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60489.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 20.271442857822514,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377982.wav",
-      "duration": 3.6959186994567053,
-      "start_time": 14.272330254889061
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6006/cough/0041.wav",
-      "duration": 1.3259202059134907,
-      "start_time": 10.443948072050777,
-      "speaker_id": "6006"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1051/laugh/0151.wav",
-      "duration": 1.52,
-      "start_time": 14.313359075784021,
-      "speaker_id": "1051"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_015981.json b/conversations/conv_015981.json
deleted file mode 100644
index 4f437720fd4dcc0d27fb32d8453fc1f2c39e410f..0000000000000000000000000000000000000000
--- a/conversations/conv_015981.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4942352127875487,
-      "duration": 3.4942352127875487,
-      "start_frame": 0,
-      "duration_frames": 55907,
-      "overlap": false,
-      "utterance_id": "5968-61356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-61356.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.967536841471387,
-      "end_time": 8.26578670865026,
-      "duration": 4.298249867178873,
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-      "duration_frames": 68771,
-      "overlap": false,
-      "utterance_id": "2532-157475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-157475.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.632960170622239,
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-      "duration": 5.5620167337016095,
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-      "overlap": false,
-      "utterance_id": "5968-55202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-55202.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.995766809389064,
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-      "duration": 4.0268561347896785,
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-      "overlap": false,
-      "utterance_id": "2532-154838",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-154838.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.542053900565048,
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-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.649046488064343,
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-      "utterance_id": "5968-61356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-61356.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 55907
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.857254250265342,
-      "end_time": 32.0,
-      "duration": 2.142745749734658,
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-      "overlap": false,
-      "utterance_id": "2532-163402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-163402.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "speaker_id": "2532"
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-}
\ No newline at end of file
diff --git a/conversations/conv_015997.json b/conversations/conv_015997.json
deleted file mode 100644
index 4027c32db2e46888c54c43e63a678ca9ae412f43..0000000000000000000000000000000000000000
--- a/conversations/conv_015997.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2785-154284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-154284.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "2785-154284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-154284.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 102111
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.022094328764254,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 96206
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2785-163322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-163322.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 28.498813155536716,
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-      "utterance_id": "3238-134398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 169797
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "duration": 1.02,
-      "start_time": 12.298248720772355,
-      "speaker_id": "3238"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2785/laugh/0079.wav",
-      "duration": 1.32,
-      "start_time": 16.344092110388207,
-      "speaker_id": "2785"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016006.json b/conversations/conv_016006.json
deleted file mode 100644
index f79d5343bc86aac8e1e90abf1af2e0d653b80e85..0000000000000000000000000000000000000000
--- a/conversations/conv_016006.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6846-76681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
-      "real_speaker_id": "6846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.316023202408769,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
-      "real_speaker_id": "6846",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 93465
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 146309
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7312-92432",
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-      "real_speaker_id": "7312",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_5.wav",
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-      "duration": 1.56,
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-}
\ No newline at end of file
diff --git a/conversations/conv_016010.json b/conversations/conv_016010.json
deleted file mode 100644
index 13e06707792c8e78cba553446f2ccbe77dc3f55f..0000000000000000000000000000000000000000
--- a/conversations/conv_016010.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 95293,
-      "overlap": false,
-      "utterance_id": "4443-3992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-3992.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.9006923583169035,
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 79208
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "utterance_id": "6010-56788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56788.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.40393461303602,
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-      "utterance_id": "4443-11591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-11591.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 60386
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 6.157788800810265,
-      "speaker_id": "1704"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1704/laugh/0032.wav",
-      "duration": 0.8348590311767687,
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-      "speaker_id": "1704"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6010/laugh/0140.wav",
-      "duration": 1.1770661281244923,
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-      "event_class": "cough",
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-      "speaker_id": "6010"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016026.json b/conversations/conv_016026.json
deleted file mode 100644
index 1e8ebcf17d1999e31022d939ee623210c6b8d839..0000000000000000000000000000000000000000
--- a/conversations/conv_016026.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.628444244694958,
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-      "overlap": false,
-      "utterance_id": "6199-48196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-48196.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.0134534899235454,
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-      "duration_frames": 70297,
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-      "utterance_id": "7839-109872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109872.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.008064141788136,
-      "end_time": 15.629124113625327,
-      "duration": 4.621059971837192,
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-      "utterance_id": "6199-80041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-80041.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.57701984567325,
-      "end_time": 22.324967497506574,
-      "duration": 5.747947651833326,
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-      "duration_frames": 91967,
-      "overlap": false,
-      "utterance_id": "6488-66121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66121.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.790104115191767,
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-      "utterance_id": "7839-109877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109877.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.34653506968798,
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-      "utterance_id": "6488-66120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66120.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_016027.json b/conversations/conv_016027.json
deleted file mode 100644
index ad45f738fa57635ad1ebfebfb694b27065ae15fc..0000000000000000000000000000000000000000
--- a/conversations/conv_016027.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "utterance_id": "6784-76150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76150.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76151.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "2660-154321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-154321.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 55714
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 16.512757985508003,
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-      "duration": 4.920416677834112,
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-      "overlap": true,
-      "utterance_id": "6784-76150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76150.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 57547
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2660-173260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-173260.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.399659631528444,
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-      "utterance_id": "8392-285237",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_016030.json b/conversations/conv_016030.json
deleted file mode 100644
index 1f9c1e1221607831baddec5f0a22d18eaf1166fc..0000000000000000000000000000000000000000
--- a/conversations/conv_016030.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "126-122467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/126-122467.flac |",
-      "real_speaker_id": "126",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.920443350785398,
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-      "utterance_id": "6242-26941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "2068",
-      "position_frames": 52469
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.741791148234217,
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-      "duration_frames": 74883,
-      "overlap": false,
-      "utterance_id": "6242-26941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_016047.json b/conversations/conv_016047.json
deleted file mode 100644
index fcfebcde8f5aaa23965ab9b3d30dc0a435a8c22b..0000000000000000000000000000000000000000
--- a/conversations/conv_016047.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.382829216336713,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "7518-86741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1230",
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-    {
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-      "real_speaker_id": "6652",
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-      "real_speaker_id": "1230",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016051.json b/conversations/conv_016051.json
deleted file mode 100644
index af5003c77b97e5042bd9d9ff0daa512136aedaa9..0000000000000000000000000000000000000000
--- a/conversations/conv_016051.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.983702708796645,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280359.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88489.flac |",
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-      "utterance_id": "5565-40589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 86586
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8108-274318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-274318.flac |",
-      "real_speaker_id": "8108",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 5.836919808749119,
-      "start_frame": 418609,
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-      "utterance_id": "7095-88484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88484.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "speaker_id": "8108"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016060.json b/conversations/conv_016060.json
deleted file mode 100644
index 4750d86838c0aaebb5d91d78df70b72cd1b6fb1b..0000000000000000000000000000000000000000
--- a/conversations/conv_016060.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1092-134568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134568.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134568.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 104803
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.184204127915436,
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-      "utterance_id": "8382-285245",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2817-142380",
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-      "real_speaker_id": "2817",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "8382-285236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285236.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "8382"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016067.json b/conversations/conv_016067.json
deleted file mode 100644
index d5a2ea7d909c2ddcfbd216e9a6c2d27a7705e45f..0000000000000000000000000000000000000000
--- a/conversations/conv_016067.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.968953767603573,
-  "num_speakers": 3,
-  "overlap_rate": 0.6,
-  "segments": [
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-      "utterance_id": "500-125123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
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-    {
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-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_016070.json b/conversations/conv_016070.json
deleted file mode 100644
index 85ee6ffe9995fdda15523cba1cb7daeb59730809..0000000000000000000000000000000000000000
--- a/conversations/conv_016070.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.02674048429312,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-88748.flac |",
-      "real_speaker_id": "7139",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.48059006272381,
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-      "duration": 3.237172976213917,
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-      "utterance_id": "1054-143005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
-      "real_speaker_id": "1054",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 17.70885441993992,
-      "end_time": 22.39422734972554,
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-      "utterance_id": "7139-75362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75362.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 55485
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.989242831533023,
-      "end_time": 29.42770350231341,
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-      "utterance_id": "1054-143005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
-      "real_speaker_id": "1054",
-      "position_frames": 51794
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.176388576661964,
-      "end_time": 31.02674048429312,
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-      "overlap": true,
-      "utterance_id": "1054-143005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
-      "real_speaker_id": "1054",
-      "position_frames": 138809
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "cough",
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-      "duration": 1.433740206360428,
-      "start_time": 0,
-      "speaker_id": "7139"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/876/cough/0011.wav",
-      "duration": 0.84,
-      "start_time": 9.127195692073789,
-      "speaker_id": "876"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7139/laugh/0112.wav",
-      "duration": 0.6983832458849637,
-      "start_time": 16.861763028343816,
-      "speaker_id": "7139"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016071.json b/conversations/conv_016071.json
deleted file mode 100644
index ef997070bd0b69d8ef8573e10a5d153d016265b3..0000000000000000000000000000000000000000
--- a/conversations/conv_016071.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.297997115594164,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.666970819491378,
-      "duration": 5.666970819491378,
-      "start_frame": 0,
-      "duration_frames": 90671,
-      "overlap": false,
-      "utterance_id": "2488-155526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155526.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.041098489761033,
-      "end_time": 12.70084196384762,
-      "duration": 6.6597434740865875,
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-      "duration_frames": 106555,
-      "overlap": true,
-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.917653013825714,
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-      "utterance_id": "7752-110526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110526.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.609208385431366,
-      "end_time": 24.2267880946902,
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-      "duration_frames": 57881,
-      "overlap": false,
-      "utterance_id": "2488-155524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155524.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.396756028991113,
-      "end_time": 31.297997115594164,
-      "duration": 6.901241086603051,
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-      "overlap": false,
-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 106555
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
-      "duration": 0.7175510204081633,
-      "start_time": 21.020910059619794
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
-      "duration": 4.843697193331194,
-      "start_time": 10.462244950877203
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7752/laugh/0043.wav",
-      "duration": 1.04,
-      "start_time": 20.576626778679923,
-      "speaker_id": "7752"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2488/laugh/0047.wav",
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-    {
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-      "duration": 0.6065948220073646,
-      "start_time": 31.393405177992637,
-      "speaker_id": "199"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016084.json b/conversations/conv_016084.json
deleted file mode 100644
index 18f87f5446cf7c254fbe4f32d8a52e68a00429e5..0000000000000000000000000000000000000000
--- a/conversations/conv_016084.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 4.5060753747037285,
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-      "overlap": false,
-      "utterance_id": "2356-154907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-19211.flac |",
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-      "position_frames": 0
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-      "utterance_id": "8242-279764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279764.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.720483007354115,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-26980.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "2356-154885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154885.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 69898,
-      "overlap": false,
-      "utterance_id": "5164-19197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-19197.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "5164"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2356/laugh/0079.wav",
-      "duration": 1.0,
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-      "speaker_id": "2356"
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-    {
-      "event_class": "cough",
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-      "duration": 0.98,
-      "start_time": 28.7232450239753,
-      "speaker_id": "5164"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016088.json b/conversations/conv_016088.json
deleted file mode 100644
index cd694f6bdf24c639fdcb67850877ab422e52743b..0000000000000000000000000000000000000000
--- a/conversations/conv_016088.json
+++ /dev/null
@@ -1,101 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.560983200854212,
-      "duration": 6.560983200854212,
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-      "duration_frames": 104975,
-      "overlap": false,
-      "utterance_id": "5252-4868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4868.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.409498264921244,
-      "end_time": 13.539081786570264,
-      "duration": 6.129583521649021,
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-      "duration_frames": 98073,
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-      "utterance_id": "2988-173558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-173558.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.869421293872229,
-      "end_time": 19.983690869248186,
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-      "start_frame": 221910,
-      "duration_frames": 97828,
-      "overlap": false,
-      "utterance_id": "8419-293473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-293473.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.02207873168968,
-      "end_time": 26.303377472528958,
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-      "duration_frames": 84500,
-      "overlap": false,
-      "utterance_id": "8419-293469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-293469.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.96246298772546,
-      "end_time": 32.0,
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-      "utterance_id": "2988-173558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-173558.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 98073
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 3.7836854839844785
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-    {
-      "event_class": "Blender",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_016092.json b/conversations/conv_016092.json
deleted file mode 100644
index b5b9a82a02d33641bdbd935f24c1c0fc8bd6ee79..0000000000000000000000000000000000000000
--- a/conversations/conv_016092.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.399395638531689,
-      "duration": 5.399395638531689,
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-      "duration_frames": 86390,
-      "overlap": false,
-      "utterance_id": "1756-134819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134819.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.161601075860085,
-      "end_time": 9.92086942429594,
-      "duration": 3.759268348435855,
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-      "duration_frames": 60148,
-      "overlap": false,
-      "utterance_id": "2093-143264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143264.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.739282868711589,
-      "end_time": 16.353451788188934,
-      "duration": 5.614168919477345,
-      "start_frame": 171828,
-      "duration_frames": 89826,
-      "overlap": false,
-      "utterance_id": "1756-134820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134820.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.352170203002302,
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-      "duration_frames": 100570,
-      "overlap": false,
-      "utterance_id": "2093-143271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143271.flac |",
-      "real_speaker_id": "2093",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293531.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143271.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_016102.json b/conversations/conv_016102.json
deleted file mode 100644
index c8ca0a22bb8af472b1b94b0a6e90bd8e2120a9bc..0000000000000000000000000000000000000000
--- a/conversations/conv_016102.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8266-258262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258262.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-279363.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "3615-14677",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14677.flac |",
-      "real_speaker_id": "3615",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.937565924087046,
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-      "utterance_id": "8266-258263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258263.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.448148894094174,
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-      "duration": 2.5518511059058255,
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-      "utterance_id": "3615-14674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14674.flac |",
-      "real_speaker_id": "3615",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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\ No newline at end of file
diff --git a/conversations/conv_016109.json b/conversations/conv_016109.json
deleted file mode 100644
index d1f2291dd7358efbde98a35ec439a88d4e57d5d8..0000000000000000000000000000000000000000
--- a/conversations/conv_016109.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "445",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-2163.flac |",
-      "real_speaker_id": "5248",
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-      "real_speaker_id": "445",
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-      "position_frames": 68756
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-2163.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 79352
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_016114.json b/conversations/conv_016114.json
deleted file mode 100644
index 6a333313ee8b24183def304123cac6b2ca306104..0000000000000000000000000000000000000000
--- a/conversations/conv_016114.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3554",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-292240.flac |",
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-      "real_speaker_id": "8753",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016118.json b/conversations/conv_016118.json
deleted file mode 100644
index 1d797cc46243f913b0bc5e566d8c69a36d53b58c..0000000000000000000000000000000000000000
--- a/conversations/conv_016118.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
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-      "real_speaker_id": "3389",
-      "position_frames": 69878
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30096.flac |",
-      "real_speaker_id": "5390",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_016122.json b/conversations/conv_016122.json
deleted file mode 100644
index 9c36687b1434d3e057b7319b8b9790352d51008e..0000000000000000000000000000000000000000
--- a/conversations/conv_016122.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.571872363902667,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3417-6522.flac |",
-      "real_speaker_id": "3417",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "5043-28401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28401.flac |",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.152993005887229,
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-      "overlap": true,
-      "utterance_id": "3417-6522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3417-6522.flac |",
-      "real_speaker_id": "3417",
-      "position_frames": 73963
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.946150613360471,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.089626548242087,
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-      "real_speaker_id": "5043",
-      "position_frames": 56246
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5043-28402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28402.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_016125.json b/conversations/conv_016125.json
deleted file mode 100644
index d6a2e015ead9180d0d59be346a7bdbc83b1af4fd..0000000000000000000000000000000000000000
--- a/conversations/conv_016125.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
-      "real_speaker_id": "6689",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 59859
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
-      "real_speaker_id": "6689",
-      "position_frames": 137600
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_016134.json b/conversations/conv_016134.json
deleted file mode 100644
index d977fd1235f3d5ad69203aa690bacd2e446cc74c..0000000000000000000000000000000000000000
--- a/conversations/conv_016134.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.93920005199052,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-    {
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_016135.json b/conversations/conv_016135.json
deleted file mode 100644
index a0aaf2d29491fb839135dd2c01addb5d047109d3..0000000000000000000000000000000000000000
--- a/conversations/conv_016135.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "5152-81825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5152-81825.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "4926",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.11113231183169,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.96228576161807,
-      "end_time": 32.0,
-      "duration": 1.0377142383819304,
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-      "utterance_id": "4926-23281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23281.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 108574
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_11.wav",
-      "duration": 0.31777777777777777,
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.32,
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-      "speaker_id": "4926"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016138.json b/conversations/conv_016138.json
deleted file mode 100644
index 7acc30582e17c3032f34fae1190a2c1cfc112f8b..0000000000000000000000000000000000000000
--- a/conversations/conv_016138.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.519745717596876,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.031609909194427,
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-      "utterance_id": "4415-16759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.825685939358364,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.43110036826161,
-      "end_time": 12.440405460819212,
-      "duration": 3.009305092557602,
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-      "overlap": false,
-      "utterance_id": "3982-182255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-182255.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 48505
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.838504529902853,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 74060
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3982-178459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-178459.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.98213464851156,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 131473
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-      "event_class": "Cat",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016143.json b/conversations/conv_016143.json
deleted file mode 100644
index 578dee02666b8f57112a3452b944befaba7d19fd..0000000000000000000000000000000000000000
--- a/conversations/conv_016143.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6494-60800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60800.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2246-131710.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60774.flac |",
-      "real_speaker_id": "6494",
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-      "real_speaker_id": "6494",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "3654-171139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171139.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 92276
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6494"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016148.json b/conversations/conv_016148.json
deleted file mode 100644
index 9b601fab0b4770bbec98bb7b2c2ef0701d298e96..0000000000000000000000000000000000000000
--- a/conversations/conv_016148.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.543646661068454,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 77737
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-    {
-      "segment_id": "seg0006",
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-      "speaker_id": "3588"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016155.json b/conversations/conv_016155.json
deleted file mode 100644
index c96db946f5b74e069d6e73e4e82ae6956b12c8b7..0000000000000000000000000000000000000000
--- a/conversations/conv_016155.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.471096570997888,
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-      "utterance_id": "4295-112687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-112687.flac |",
-      "real_speaker_id": "4295",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-39940.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 21.786639211699164,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 167597
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.034745009491367,
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-      "duration": 4.848498064413967,
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-      "utterance_id": "4295-112687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-112687.flac |",
-      "real_speaker_id": "4295",
-      "position_frames": 82146
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.11761395094352,
-      "end_time": 32.0,
-      "duration": 0.8823860490564783,
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-      "duration_frames": 14118,
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-      "utterance_id": "4214-7146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 218953
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4214/laugh/0014.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "4214"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016159.json b/conversations/conv_016159.json
deleted file mode 100644
index 8da6762ab8002f8cc1550734a9012b96aaab0b58..0000000000000000000000000000000000000000
--- a/conversations/conv_016159.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2999-156968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2999-156968.flac |",
-      "real_speaker_id": "2999",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.040913570499454,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4054-11077.flac |",
-      "real_speaker_id": "4054",
-      "position_frames": 0
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-      "real_speaker_id": "2999",
-      "position_frames": 76665
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4054-11077.flac |",
-      "real_speaker_id": "4054",
-      "position_frames": 56737
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3060-163540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 63191,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2999-156968.flac |",
-      "real_speaker_id": "2999",
-      "position_frames": 149749
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.507505226419774,
-      "end_time": 32.0,
-      "duration": 1.4924947735802263,
-      "start_frame": 488120,
-      "duration_frames": 23879,
-      "overlap": false,
-      "utterance_id": "4054-11077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4054-11077.flac |",
-      "real_speaker_id": "4054",
-      "position_frames": 136061
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "speaker_id": "3060"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016163.json b/conversations/conv_016163.json
deleted file mode 100644
index 7d64a1835f0a07fc75a83845046ad7d026dc3171..0000000000000000000000000000000000000000
--- a/conversations/conv_016163.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "5325",
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-      "position_frames": 80600
-    },
-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016175.json b/conversations/conv_016175.json
deleted file mode 100644
index 118b9754174991bf6b02de3d5222ae466dd8e544..0000000000000000000000000000000000000000
--- a/conversations/conv_016175.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.777491131588718,
-  "num_speakers": 3,
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-      "overlap": false,
-      "utterance_id": "7302-86815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86815.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 73422
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7302/laugh/0131.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "7302"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.8816109135317662,
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-      "speaker_id": "252"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/252/laugh/0129.wav",
-      "duration": 0.9960732875238407,
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-      "speaker_id": "252"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7302/cough/0106.wav",
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-      "start_time": 31.045535830965363,
-      "speaker_id": "7302"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016179.json b/conversations/conv_016179.json
deleted file mode 100644
index 44c8f25b6954d61db765cd0921e3ef0f46c4f728..0000000000000000000000000000000000000000
--- a/conversations/conv_016179.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.878065755505776,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.0795187925817205,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6912-70847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.352492282177676,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2709-158074.flac |",
-      "real_speaker_id": "2709",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.235001577856671,
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-      "overlap": false,
-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.07801727371899,
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-      "duration_frames": 64069,
-      "overlap": false,
-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.79109784277495,
-      "end_time": 25.62269106250075,
-      "duration": 6.831593219725799,
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-      "duration_frames": 109305,
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-      "utterance_id": "6912-70847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 65272
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.776981450782046,
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-      "duration": 5.10108430472373,
-      "start_frame": 428431,
-      "duration_frames": 81617,
-      "overlap": false,
-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 64069
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "6912"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 3.995122118215196,
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-    {
-      "event_class": "cough",
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-      "start_time": 27.15250426462516,
-      "speaker_id": "6620"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016180.json b/conversations/conv_016180.json
deleted file mode 100644
index f112a37dc06fa407ff34510202955726180ba717..0000000000000000000000000000000000000000
--- a/conversations/conv_016180.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.03665610699401,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4152-12926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.536213713367677,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39477.flac |",
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-      "position_frames": 0
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-      "utterance_id": "4152-5710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-5710.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.790316561352757,
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-      "utterance_id": "5513-39477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39477.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 96740
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39477.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 202468
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 9210,
-      "overlap": true,
-      "utterance_id": "4152-5710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-5710.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 90888
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-      "event_class": "laugh",
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-      "start_time": 9.968953509824873,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5513/laugh/0065.wav",
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-      "start_time": 16.867533053979173,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4152/laugh/0088.wav",
-      "duration": 0.961499560017407,
-      "start_time": 29.254369971573826,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "4152"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016196.json b/conversations/conv_016196.json
deleted file mode 100644
index ce4086fce02eca9a64d9f5971ed19470d7cb61ea..0000000000000000000000000000000000000000
--- a/conversations/conv_016196.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7143-88749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88749.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7143",
-      "position_frames": 71267
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-133094.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-121761.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 91192
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "start_time": 31.216971404070655
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_016207.json b/conversations/conv_016207.json
deleted file mode 100644
index 7155a59bcafdc21d42c05276d0d152c813aaf421..0000000000000000000000000000000000000000
--- a/conversations/conv_016207.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.239102203038062,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1401-146770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-146770.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.5499544583280755,
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-      "real_speaker_id": "211",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1401-146770",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016210.json b/conversations/conv_016210.json
deleted file mode 100644
index 83911c034665a37f6458932997a1f1b0257162b1..0000000000000000000000000000000000000000
--- a/conversations/conv_016210.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97610.flac |",
-      "real_speaker_id": "5740",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161972.flac |",
-      "real_speaker_id": "1923",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-112594.flac |",
-      "real_speaker_id": "7737",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97610.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161975.flac |",
-      "real_speaker_id": "1923",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-112595.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_016211.json b/conversations/conv_016211.json
deleted file mode 100644
index 08d48a096db108fcdb8dc8ec7845f00385eb51e9..0000000000000000000000000000000000000000
--- a/conversations/conv_016211.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91187.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 76524
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1184-135536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135536.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.9312194655625,
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-      "utterance_id": "7447-91187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91187.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 165699
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 2.114699336039365,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135536.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 100565
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_016220.json b/conversations/conv_016220.json
deleted file mode 100644
index ea53f02303516ebd9ca43fbbfaf90dda945222c5..0000000000000000000000000000000000000000
--- a/conversations/conv_016220.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "681-166575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-166575.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176854.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "7912-105669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7912-105669.flac |",
-      "real_speaker_id": "7912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-166575.flac |",
-      "real_speaker_id": "681",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7912-105669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7912-105669.flac |",
-      "real_speaker_id": "7912",
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 60352,
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-      "utterance_id": "681-161945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-161945.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
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-    {
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-      "speaker_id": "681"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016227.json b/conversations/conv_016227.json
deleted file mode 100644
index 036112b65167dd5174dfa799a55b6715bb08171a..0000000000000000000000000000000000000000
--- a/conversations/conv_016227.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.61572921643627,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.562916563694304,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1129.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016231.json b/conversations/conv_016231.json
deleted file mode 100644
index 6e31caad926435711cff59eec5984aa6937a1e09..0000000000000000000000000000000000000000
--- a/conversations/conv_016231.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1685",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146845.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 0
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_016236.json b/conversations/conv_016236.json
deleted file mode 100644
index bd7a18c4d5fd5dd1db944bb0d6de9641a40e7647..0000000000000000000000000000000000000000
--- a/conversations/conv_016236.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
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-    {
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-      "utterance_id": "593-126932",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016246.json b/conversations/conv_016246.json
deleted file mode 100644
index 4982e65682d66f871a67590c1d57b4c42aa87912..0000000000000000000000000000000000000000
--- a/conversations/conv_016246.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "speaker_id": "7699"
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\ No newline at end of file
diff --git a/conversations/conv_016250.json b/conversations/conv_016250.json
deleted file mode 100644
index 8e031fa1fdf01d11d723e02febeae458d97609e9..0000000000000000000000000000000000000000
--- a/conversations/conv_016250.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2301-134424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-134424.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157471.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157471.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 83885
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.053734551165803,
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-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 147969
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016261.json b/conversations/conv_016261.json
deleted file mode 100644
index 93a236cacf12df8e20e357edc746440a2886e3a2..0000000000000000000000000000000000000000
--- a/conversations/conv_016261.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7178",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
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-      "segment_id": "seg0006",
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-      "utterance_id": "7178-34644",
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\ No newline at end of file
diff --git a/conversations/conv_016266.json b/conversations/conv_016266.json
deleted file mode 100644
index 2374217264fbbdddb7f5dbc18edbbadbbb2f0cd7..0000000000000000000000000000000000000000
--- a/conversations/conv_016266.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162253.flac |",
-      "real_speaker_id": "2397",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016270.json b/conversations/conv_016270.json
deleted file mode 100644
index 1c593d50064dcb344023c50ff328a0254b10f0a7..0000000000000000000000000000000000000000
--- a/conversations/conv_016270.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 137392
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "3925"
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-}
\ No newline at end of file
diff --git a/conversations/conv_016277.json b/conversations/conv_016277.json
deleted file mode 100644
index a86a5d7f4e4be0c66f6362672a7a5b6b8c209d63..0000000000000000000000000000000000000000
--- a/conversations/conv_016277.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.723554118877132,
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-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1094-129661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-129661.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8710-286293.flac |",
-      "real_speaker_id": "8710",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157768.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.516622035927575,
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1094-157768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157768.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 100411
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1593-91064.flac |",
-      "real_speaker_id": "1593",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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\ No newline at end of file
diff --git a/conversations/conv_016285.json b/conversations/conv_016285.json
deleted file mode 100644
index 0bd326b2d5c476c7a860542f16a16a6e18a45d10..0000000000000000000000000000000000000000
--- a/conversations/conv_016285.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-148985.flac |",
-      "real_speaker_id": "937",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-131548.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.829522037446722,
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-      "overlap": true,
-      "utterance_id": "150-132655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-132655.flac |",
-      "real_speaker_id": "150",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016289.json b/conversations/conv_016289.json
deleted file mode 100644
index 6794d4a48b4f7ed76771c80a5f85c3c6c413ef47..0000000000000000000000000000000000000000
--- a/conversations/conv_016289.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
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-      "position_frames": 162159
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_016293.json b/conversations/conv_016293.json
deleted file mode 100644
index f4ca7e3f49d2a94af3f34cec067d3947f111bd9c..0000000000000000000000000000000000000000
--- a/conversations/conv_016293.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-  "foreground_events": [
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-      "start_time": 4.500946396385178
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
-      "duration": 4.933657154784342,
-      "start_time": 14.728386861061962
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8245/laugh/0054.wav",
-      "duration": 1.4,
-      "start_time": 8.680796899728165,
-      "speaker_id": "8245"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1088/laugh/0003.wav",
-      "duration": 1.16,
-      "start_time": 30.258333762665497,
-      "speaker_id": "1088"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/806/laugh/0070.wav",
-      "duration": 0.8583176108259865,
-      "start_time": 29.442248515041037,
-      "speaker_id": "806"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/806/cough/0047.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "806"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016298.json b/conversations/conv_016298.json
deleted file mode 100644
index e34b94d659872ee3829907223dacc5d4b9b8a0b3..0000000000000000000000000000000000000000
--- a/conversations/conv_016298.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.834890187197324,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.601714112763281,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4930-20046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.964073599564157,
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-      "utterance_id": "111-129000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.690514681278911,
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-      "start_frame": 171048,
-      "duration_frames": 64150,
-      "overlap": false,
-      "utterance_id": "4930-20046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 73627
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.533857455123595,
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-      "duration_frames": 89384,
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-      "utterance_id": "111-129000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 72495
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.037852174184348,
-      "end_time": 27.592083237469403,
-      "duration": 5.554231063285057,
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-      "duration_frames": 88867,
-      "overlap": false,
-      "utterance_id": "4930-20046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 137777
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.862765946736804,
-      "end_time": 31.834890187197324,
-      "duration": 3.97212424046052,
-      "start_frame": 445804,
-      "duration_frames": 63553,
-      "overlap": false,
-      "utterance_id": "111-129000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 161879
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
-      "duration": 23.64715633704394,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
-      "duration": 0.30428571428571427,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4930/laugh/0128.wav",
-      "duration": 0.7245628140369185,
-      "start_time": 0.16350037056330666,
-      "speaker_id": "4930"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4930/cough/0120.wav",
-      "duration": 0.3807675886854247,
-      "start_time": 4.659806885251562,
-      "speaker_id": "4930"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/111/laugh/0083.wav",
-      "duration": 0.8605187711598618,
-      "start_time": 31.13948122884014,
-      "speaker_id": "111"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016303.json b/conversations/conv_016303.json
deleted file mode 100644
index 43ec2fa20b94823ca4c23776bfc10b59e76e40d6..0000000000000000000000000000000000000000
--- a/conversations/conv_016303.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.67520564586321,
-      "duration": 6.67520564586321,
-      "start_frame": 0,
-      "duration_frames": 106803,
-      "overlap": false,
-      "utterance_id": "1107-134313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-134313.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.478783445314538,
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-      "utterance_id": "778-126734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
-      "real_speaker_id": "778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 15.378045404966832,
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-      "overlap": false,
-      "utterance_id": "1107-1042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-1042.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.276083730992255,
-      "end_time": 25.2531997112032,
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-      "overlap": false,
-      "utterance_id": "1456-136846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-136846.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.9744249715056,
-      "end_time": 32.0,
-      "duration": 6.025575028494401,
-      "start_frame": 415590,
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-      "overlap": false,
-      "utterance_id": "778-126734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
-      "real_speaker_id": "778",
-      "position_frames": 106344
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.4913010810816192,
-      "start_time": 21.369212377117975
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-      "start_time": 5.171893239966543
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/778/laugh/0022.wav",
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-      "start_time": 6.205162258688257,
-      "speaker_id": "778"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/778/laugh/0068.wav",
-      "duration": 0.8284635753344118,
-      "start_time": 28.907039283272,
-      "speaker_id": "778"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016315.json b/conversations/conv_016315.json
deleted file mode 100644
index d82e9589bf6d44442aada712af0026ca7292e49d..0000000000000000000000000000000000000000
--- a/conversations/conv_016315.json
+++ /dev/null
@@ -1,95 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.452198550062651,
-      "duration": 6.452198550062651,
-      "start_frame": 0,
-      "duration_frames": 103235,
-      "overlap": false,
-      "utterance_id": "22-121148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121148.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.094413313913095,
-      "end_time": 12.970585990766754,
-      "duration": 5.876172676853658,
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-      "overlap": false,
-      "utterance_id": "22-121140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121140.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.972138829382803,
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-      "duration": 5.552315335444533,
-      "start_frame": 223554,
-      "duration_frames": 88837,
-      "overlap": false,
-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.730934697392463,
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-      "utterance_id": "1685-146849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146849.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 28.06253764246364,
-      "end_time": 32.0,
-      "duration": 3.9374623575363614,
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-      "overlap": false,
-      "utterance_id": "22-121148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121148.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 103235
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 16.9718440447235,
-      "start_time": 4.261230432288661
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 14.77004874982909
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_016319.json b/conversations/conv_016319.json
deleted file mode 100644
index d9d86a6ade684147fb245458b6a94bf9aee22e76..0000000000000000000000000000000000000000
--- a/conversations/conv_016319.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.512063028253433,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "451-126829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126829.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.340570392516299,
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-      "overlap": false,
-      "utterance_id": "1093-132891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1093-132891.flac |",
-      "real_speaker_id": "1093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.316251127703115,
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-      "duration_frames": 92847,
-      "overlap": false,
-      "utterance_id": "451-126826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126826.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.779253014206347,
-      "end_time": 24.20589545467477,
-      "duration": 6.426642440468424,
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-      "overlap": false,
-      "utterance_id": "8367-279366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279366.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.78673863058943,
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-      "duration_frames": 107605,
-      "overlap": false,
-      "utterance_id": "1093-132891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1093-132891.flac |",
-      "real_speaker_id": "1093",
-      "position_frames": 76562
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
-      "duration": 1.0005215419501134,
-      "start_time": 2.3270797943996326
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
-      "duration": 0.672108843537415,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1093/cough/0121.wav",
-      "duration": 1.36,
-      "start_time": 11.204275113280476,
-      "speaker_id": "1093"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016323.json b/conversations/conv_016323.json
deleted file mode 100644
index 92d1bfa2373ce842af972fba726d064902644bb4..0000000000000000000000000000000000000000
--- a/conversations/conv_016323.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135227.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.223720400047165,
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-      "utterance_id": "5678-43303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43303.flac |",
-      "real_speaker_id": "5678",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/75-853.flac |",
-      "real_speaker_id": "75",
-      "position_frames": 0
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-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
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-      "segment_id": "seg0005",
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-      "start_time": 29.453476921046175,
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-      "utterance_id": "75-854",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/75-854.flac |",
-      "real_speaker_id": "75",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 27.768951327836657,
-      "start_time": 2.1641753784131135
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-  ],
-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
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-      "start_time": 20.004000620378925
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/75/laugh/0151.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "speaker_id": "2517"
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-    {
-      "event_class": "cough",
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-      "duration": 0.8182973578772417,
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-      "speaker_id": "2517"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/75/laugh/0127.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "75"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/75/cough/0031.wav",
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-      "start_time": 30.34550663606169,
-      "speaker_id": "75"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016324.json b/conversations/conv_016324.json
deleted file mode 100644
index 7bb9479e00a4089b5839d54d6cdce9996ca75f9c..0000000000000000000000000000000000000000
--- a/conversations/conv_016324.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.668105739717744,
-      "duration": 5.668105739717744,
-      "start_frame": 0,
-      "duration_frames": 90689,
-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.86329465544209,
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-      "duration_frames": 93383,
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-      "utterance_id": "3379-132601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132601.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.548038460934471,
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-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 90689
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "3379-132592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 177481
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.539143824669676,
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-      "duration": 4.460856175330324,
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-      "overlap": false,
-      "utterance_id": "3379-132592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 49196
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/laugh/0078.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "2741"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3379/cough/0069.wav",
-      "duration": 0.92,
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-      "duration": 1.56,
-      "start_time": 15.697837384481604,
-      "speaker_id": "3379"
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 20.89474887939985,
-      "speaker_id": "2741"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016332.json b/conversations/conv_016332.json
deleted file mode 100644
index aff800f3bf433ffd6696eee9a68f11d4fb0ed392..0000000000000000000000000000000000000000
--- a/conversations/conv_016332.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 0
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-      "utterance_id": "101-126860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126860.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.05822861491214,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 56360
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4930-20048",
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-      "real_speaker_id": "4930",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 74689
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.356535181613026,
-      "end_time": 32.0,
-      "duration": 0.643464818386974,
-      "start_frame": 501704,
-      "duration_frames": 10295,
-      "overlap": false,
-      "utterance_id": "4930-20048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20048.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 72432
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "4930"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016335.json b/conversations/conv_016335.json
deleted file mode 100644
index 988a035563eb9a5d41b33bab4be995b5f8c437dd..0000000000000000000000000000000000000000
--- a/conversations/conv_016335.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
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-      "position_frames": 71751
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-    {
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2096/laugh/0046.wav",
-      "duration": 1.4353081838992532,
-      "start_time": 27.526803778026093,
-      "speaker_id": "2096"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016339.json b/conversations/conv_016339.json
deleted file mode 100644
index 2610d7cc1e0d5bf4c9f49695851f988c7b22d783..0000000000000000000000000000000000000000
--- a/conversations/conv_016339.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5201033471937873,
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-      "overlap": false,
-      "utterance_id": "2436-2481",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2481.flac |",
-      "real_speaker_id": "2436",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.169022725426596,
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-      "utterance_id": "1313-135022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135022.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
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-      "start_time": 8.192512022992899,
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-      "overlap": true,
-      "utterance_id": "8580-287364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287364.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.650241206878617,
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-      "duration_frames": 85630,
-      "overlap": false,
-      "utterance_id": "1313-135022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135022.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 56192
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.061238274044676,
-      "end_time": 25.367539085339022,
-      "duration": 4.306300811294346,
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-      "duration_frames": 68900,
-      "overlap": false,
-      "utterance_id": "8580-287364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287364.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 84002
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.838258899245666,
-      "end_time": 29.628790274768917,
-      "duration": 3.7905313755232495,
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-      "duration_frames": 60648,
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-      "utterance_id": "1313-135020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135020.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.127337796602944,
-      "end_time": 32.0,
-      "duration": 1.8726622033970557,
-      "start_frame": 482037,
-      "duration_frames": 29962,
-      "overlap": false,
-      "utterance_id": "8580-287364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287364.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 152902
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_11.wav",
-      "duration": 1.0354648526077097,
-      "start_time": 20.635616254662224
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_016342.json b/conversations/conv_016342.json
deleted file mode 100644
index f6929b315cac665231d6186e1cc98259c3341db6..0000000000000000000000000000000000000000
--- a/conversations/conv_016342.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 5.419061446762467,
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-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 90064
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-      "segment_id": "seg0002",
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-      "utterance_id": "4015-63729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-63729.flac |",
-      "real_speaker_id": "4015",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.08654404365677,
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-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 191069
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 104823
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "4015"
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-    {
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-      "event_class": "laugh",
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-      "start_time": 23.648974001825493,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1487"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/cough/0052.wav",
-      "duration": 0.32360206562476224,
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-      "speaker_id": "1487"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016354.json b/conversations/conv_016354.json
deleted file mode 100644
index a37588cd793faea0b3b973568aede0c1fac52694..0000000000000000000000000000000000000000
--- a/conversations/conv_016354.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 63509
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139322.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 83534
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 191767
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.12,
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-    {
-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_016358.json b/conversations/conv_016358.json
deleted file mode 100644
index ddb372ec19fee26f1a4aed2ce235829a109d46dd..0000000000000000000000000000000000000000
--- a/conversations/conv_016358.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "8490",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
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-      "speaker_id": 2,
-      "start_time": 14.966045803858613,
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-      "utterance_id": "8138-293529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293529.flac |",
-      "real_speaker_id": "8138",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284269.flac |",
-      "real_speaker_id": "8490",
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-      "segment_id": "seg0005",
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-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 146567
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.823717329759738,
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-      "duration": 2.176282670240262,
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-      "utterance_id": "8490-284268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284268.flac |",
-      "real_speaker_id": "8490",
-      "position_frames": 76192
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 21.05861678004535,
-      "start_time": 1.243870018065407
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
-      "duration": 2.236575963718821,
-      "start_time": 3.4654950624443224
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5005/cough/0105.wav",
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-      "start_time": 0,
-      "speaker_id": "5005"
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-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8138/laugh/0049.wav",
-      "duration": 1.0886951345654257,
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-      "speaker_id": "8138"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8138/cough/0021.wav",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "8490"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016359.json b/conversations/conv_016359.json
deleted file mode 100644
index c8cec28ff782a34af58765f7033bcb7541a9be7f..0000000000000000000000000000000000000000
--- a/conversations/conv_016359.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.68703597670031,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.593933504893476,
-      "duration": 4.593933504893476,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.021243592002117,
-      "end_time": 8.863230031680637,
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-      "overlap": false,
-      "utterance_id": "8430-172388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172388.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.228767978026493,
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-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 73502
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.106540584886556,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188161.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.053041359636346,
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-      "utterance_id": "8430-172387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172387.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.629290550105097,
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-      "overlap": true,
-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 162169
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8430/laugh/0032.wav",
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.64,
-      "start_time": 26.81024451923519,
-      "speaker_id": "1006"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016362.json b/conversations/conv_016362.json
deleted file mode 100644
index b48135886fe9c33c37ba8f870fc7a777e50c9fec..0000000000000000000000000000000000000000
--- a/conversations/conv_016362.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6794-73984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6794-73984.flac |",
-      "real_speaker_id": "6794",
-      "position_frames": 0
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-      "real_speaker_id": "7445",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "2348",
-      "position_frames": 61742
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-      "real_speaker_id": "6794",
-      "position_frames": 96810
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 112667
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "start_time": 14.174716746157515,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6794/laugh/0062.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016365.json b/conversations/conv_016365.json
deleted file mode 100644
index 01b619ae91444d0c18cbd7084429c683ca10c3d2..0000000000000000000000000000000000000000
--- a/conversations/conv_016365.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "428-125877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125877.flac |",
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-    {
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-      "utterance_id": "428-125878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125878.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "segment_id": "seg0005",
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-      "position_frames": 57717
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-9936.flac |",
-      "real_speaker_id": "4313",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4313/laugh/0007.wav",
-      "duration": 0.6959888239764844,
-      "start_time": 14.160541249676852,
-      "speaker_id": "4313"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3307/laugh/0073.wav",
-      "duration": 0.9429591789562268,
-      "start_time": 20.02300477142589,
-      "speaker_id": "3307"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016373.json b/conversations/conv_016373.json
deleted file mode 100644
index 64ea9ec74ee1d48ac46c182774c31d699a2efbd4..0000000000000000000000000000000000000000
--- a/conversations/conv_016373.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.924908723389648,
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-      "overlap": false,
-      "utterance_id": "218-131205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.914861008880558,
-      "end_time": 11.782536593803865,
-      "duration": 5.867675584923306,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "duration_frames": 84164,
-      "overlap": true,
-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 17.613475391944164,
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-      "overlap": true,
-      "utterance_id": "218-131205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 78798
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.95768032499168,
-      "end_time": 30.097706105777775,
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-      "overlap": false,
-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 84164
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.431161529803447,
-      "end_time": 32.0,
-      "duration": 1.5688384701965532,
-      "start_frame": 486898,
-      "duration_frames": 25101,
-      "overlap": false,
-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 93882
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-    {
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-      "duration": 1.46,
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-      "speaker_id": "218"
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 1.1,
-      "start_time": 30.475720612494367,
-      "speaker_id": "8476"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_016374.json b/conversations/conv_016374.json
deleted file mode 100644
index 4ed53810cb5bcae960d2b177a28116b855a52584..0000000000000000000000000000000000000000
--- a/conversations/conv_016374.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5390-30096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30096.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138096.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "5390-24512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-24512.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.58788824636659,
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-      "overlap": false,
-      "utterance_id": "1291-138096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138096.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 74585
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.53312168441263,
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-      "utterance_id": "1291-138273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138273.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.119121814739216,
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-      "utterance_id": "6377-34619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34619.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1291"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016378.json b/conversations/conv_016378.json
deleted file mode 100644
index 4694397ca43bb1650e753931e8704c8c11737b93..0000000000000000000000000000000000000000
--- a/conversations/conv_016378.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5375-40169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40169.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15046.flac |",
-      "real_speaker_id": "4701",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6159-50456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6159-50456.flac |",
-      "real_speaker_id": "6159",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40162.flac |",
-      "real_speaker_id": "5375",
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-    {
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-      "utterance_id": "6159-39642",
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-      "real_speaker_id": "6159",
-      "position_frames": 0
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-    {
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-      "utterance_id": "5375-40170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40170.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "duration": 1.44,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5375/laugh/0001.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "5375"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016381.json b/conversations/conv_016381.json
deleted file mode 100644
index a37eb130e9adda6169ec05ca57c27c5be1322a93..0000000000000000000000000000000000000000
--- a/conversations/conv_016381.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.280708016379504,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1750-142369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-142369.flac |",
-      "real_speaker_id": "1750",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "218",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-142369.flac |",
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-      "position_frames": 68491
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-142369.flac |",
-      "real_speaker_id": "1750",
-      "position_frames": 137290
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.246005329608728,
-      "end_time": 32.0,
-      "duration": 5.753994670391272,
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-      "overlap": false,
-      "utterance_id": "218-131205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 82966
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1750/laugh/0011.wav",
-      "duration": 1.12,
-      "start_time": 19.949074842103478,
-      "speaker_id": "1750"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/218/laugh/0074.wav",
-      "duration": 1.0941792924222797,
-      "start_time": 24.868024831360994,
-      "speaker_id": "218"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016397.json b/conversations/conv_016397.json
deleted file mode 100644
index 60374d9d421237aa3632ade5cc4258f8608d299b..0000000000000000000000000000000000000000
--- a/conversations/conv_016397.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.239866139237506,
-      "duration": 6.239866139237506,
-      "start_frame": 0,
-      "duration_frames": 99837,
-      "overlap": false,
-      "utterance_id": "7348-86748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-86748.flac |",
-      "real_speaker_id": "7348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.444858238718109,
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-      "duration": 4.809809983084869,
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-      "duration_frames": 76956,
-      "overlap": false,
-      "utterance_id": "426-122819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122819.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 88234,
-      "overlap": false,
-      "utterance_id": "1096-17320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-17320.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.801945315725014,
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-      "utterance_id": "7348-294687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-294687.flac |",
-      "real_speaker_id": "7348",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.09561637944456,
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-      "utterance_id": "426-122821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122821.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.847608028565727,
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-      "duration": 2.152391971434273,
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-      "utterance_id": "7348-294687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-294687.flac |",
-      "real_speaker_id": "7348",
-      "position_frames": 108474
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016401.json b/conversations/conv_016401.json
deleted file mode 100644
index dc15f4be25c21b0c06cccc09768dd1f150fbdf6d..0000000000000000000000000000000000000000
--- a/conversations/conv_016401.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7424-98623.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "speaker_id": 0,
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-      "utterance_id": "200-124140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124140.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-700.flac |",
-      "real_speaker_id": "3869",
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-    {
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-      "start_time": 23.379369394077518,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124139.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124139.flac |",
-      "real_speaker_id": "200",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
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-      "start_time": 0,
-      "speaker_id": "7424"
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 9.643624189165111,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016417.json b/conversations/conv_016417.json
deleted file mode 100644
index 7c3caa9c168d715af52fec6d85c90cf8e8a106bc..0000000000000000000000000000000000000000
--- a/conversations/conv_016417.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.47814492525862,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.763354479570325,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8443-274756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-274756.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.3301645688859525,
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-      "utterance_id": "480-123176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-123176.flac |",
-      "real_speaker_id": "480",
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-      "segment_id": "seg0002",
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-      "duration_frames": 75492,
-      "overlap": false,
-      "utterance_id": "6446-57416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126336.flac |",
-      "real_speaker_id": "480",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.505993229210386,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 75492
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_016420.json b/conversations/conv_016420.json
deleted file mode 100644
index d94a685e3713d243115c2cd79fc07c32ddc59ac0..0000000000000000000000000000000000000000
--- a/conversations/conv_016420.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.55439236447804,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3288-7157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3288-7157.flac |",
-      "real_speaker_id": "3288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.394779956780119,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123049.flac |",
-      "real_speaker_id": "362",
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.835063716254947,
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-      "duration": 6.903075739576346,
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-      "utterance_id": "2960-155152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 20.531219403378493,
-      "start_time": 3.6976591801893
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.0220057799141387,
-      "start_time": 23.73355455585983
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_3.wav",
-      "duration": 1.0158503401360544,
-      "start_time": 23.519613442487575
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/362/laugh/0059.wav",
-      "duration": 1.2787483001629563,
-      "start_time": 7.432372205207561,
-      "speaker_id": "362"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2960/laugh/0114.wav",
-      "duration": 1.44,
-      "start_time": 13.85140729573465,
-      "speaker_id": "2960"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2960/laugh/0014.wav",
-      "duration": 1.48,
-      "start_time": 18.65600732104374,
-      "speaker_id": "2960"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3288/cough/0067.wav",
-      "duration": 0.650999970555928,
-      "start_time": 25.659440709154673,
-      "speaker_id": "3288"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016421.json b/conversations/conv_016421.json
deleted file mode 100644
index 669ae9bbf5ecd60be4c1435c3092bfd19be94b66..0000000000000000000000000000000000000000
--- a/conversations/conv_016421.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.762962996526674,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.088509726065459,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7507-100454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100454.flac |",
-      "real_speaker_id": "7507",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.648378872185582,
-      "end_time": 8.853551220734683,
-      "duration": 3.205172348549102,
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-      "overlap": false,
-      "utterance_id": "6446-57416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.456778402556132,
-      "end_time": 13.055333966561687,
-      "duration": 3.5985555640055535,
-      "start_frame": 151308,
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-      "overlap": false,
-      "utterance_id": "7507-100453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100453.flac |",
-      "real_speaker_id": "7507",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.640001053937828,
-      "end_time": 19.413342570912867,
-      "duration": 5.773341516975039,
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-      "overlap": false,
-      "utterance_id": "5725-44938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-44938.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.969298417022813,
-      "end_time": 26.18544099654199,
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-      "overlap": false,
-      "utterance_id": "7507-100422",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100422.flac |",
-      "real_speaker_id": "7507",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.247959116997006,
-      "end_time": 30.762962996526674,
-      "duration": 3.5150038795296696,
-      "start_frame": 435967,
-      "duration_frames": 56240,
-      "overlap": false,
-      "utterance_id": "5725-50452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-50452.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 10.706002217767868,
-      "start_time": 5.393364677425474
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_3.wav",
-      "duration": 2.4751473922902494,
-      "start_time": 7.231618341973049
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
-      "duration": 2.598499194404197,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "speaker_id": "7507"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6446/laugh/0020.wav",
-      "duration": 1.52,
-      "start_time": 9.07844192993742,
-      "speaker_id": "6446"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7507/laugh/0005.wav",
-      "duration": 0.6888827995991536,
-      "start_time": 13.080404081177022,
-      "speaker_id": "7507"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5725/laugh/0072.wav",
-      "duration": 1.7734903875678567,
-      "start_time": 30.226509612432142,
-      "speaker_id": "5725"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016430.json b/conversations/conv_016430.json
deleted file mode 100644
index a122ca78e6322b163133fe905d890c29a0104138..0000000000000000000000000000000000000000
--- a/conversations/conv_016430.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.618589423052449,
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-      "overlap": false,
-      "utterance_id": "7956-245687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.432849192708372,
-      "end_time": 11.814849122814177,
-      "duration": 6.381999930105804,
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-      "overlap": false,
-      "utterance_id": "7242-275160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275160.flac |",
-      "real_speaker_id": "7242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.351605575069478,
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-      "utterance_id": "7956-245687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 73897
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.490868604430315,
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-      "overlap": true,
-      "utterance_id": "7730-304541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304541.flac |",
-      "real_speaker_id": "7730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.3198186343473,
-      "end_time": 28.667019068670392,
-      "duration": 4.34720043432309,
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-      "duration_frames": 69555,
-      "overlap": false,
-      "utterance_id": "7956-245687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 156870
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.97003322286985,
-      "end_time": 32.0,
-      "duration": 3.0299667771301486,
-      "start_frame": 463520,
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-      "overlap": false,
-      "utterance_id": "7730-304535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304535.flac |",
-      "real_speaker_id": "7730",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 2.6953277920003016,
-      "start_time": 1.6069353099634047
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7956/laugh/0043.wav",
-      "duration": 0.88,
-      "start_time": 4.7333799698744485,
-      "speaker_id": "7956"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7956/cough/0067.wav",
-      "duration": 1.1092320215820497,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7956/laugh/0007.wav",
-      "duration": 1.04,
-      "start_time": 11.046302239763191,
-      "speaker_id": "7956"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7956/cough/0016.wav",
-      "duration": 0.5178436630642186,
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-      "speaker_id": "7956"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7730/laugh/0112.wav",
-      "duration": 1.18,
-      "start_time": 16.18153545971781,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7956/laugh/0064.wav",
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-      "start_time": 25.164650795367827,
-      "speaker_id": "7956"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016437.json b/conversations/conv_016437.json
deleted file mode 100644
index 526e199c092d021ee793fdc89e2984ad379d717e..0000000000000000000000000000000000000000
--- a/conversations/conv_016437.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.688940391084223,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.238160488917602,
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-      "overlap": false,
-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.662169783436521,
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-      "utterance_id": "2007-149877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-149877.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.378239207282427,
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-      "utterance_id": "1704-142310",
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-      "real_speaker_id": "1704",
-      "position_frames": 81096
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.341860618813744,
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-      "duration_frames": 81000,
-      "overlap": true,
-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 55010
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.009269776575735,
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-      "duration": 5.679670614508489,
-      "start_frame": 416148,
-      "duration_frames": 90874,
-      "overlap": false,
-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 136010
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.9447845804988662,
-      "start_time": 16.692086309724814
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1704/laugh/0057.wav",
-      "duration": 1.2,
-      "start_time": 1.2903947165843428,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7416/laugh/0062.wav",
-      "duration": 1.12,
-      "start_time": 6.921102034459583,
-      "speaker_id": "7416"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016440.json b/conversations/conv_016440.json
deleted file mode 100644
index ceb66ad0b2efc5528d2fb7c0df86d1e2a9d74553..0000000000000000000000000000000000000000
--- a/conversations/conv_016440.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.325759669532886,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_016456.json b/conversations/conv_016456.json
deleted file mode 100644
index 74791ba213d7e063602a0db4c92cad205b1109e3..0000000000000000000000000000000000000000
--- a/conversations/conv_016456.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2021",
-      "position_frames": 0
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-      "real_speaker_id": "4549",
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-    },
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4837-285896.flac |",
-      "real_speaker_id": "4837",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.824739099862356,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4837-302000.flac |",
-      "real_speaker_id": "4837",
-      "position_frames": 98365
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-      "segment_id": "seg0005",
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-      "utterance_id": "2021-235244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235244.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_016460.json b/conversations/conv_016460.json
deleted file mode 100644
index af3ca7380f5434079220e515612afab7e90b5f8f..0000000000000000000000000000000000000000
--- a/conversations/conv_016460.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.052754155103656,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68897.flac |",
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-      "position_frames": 61891
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-      "real_speaker_id": "6594",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-4878.flac |",
-      "real_speaker_id": "4015",
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\ No newline at end of file
diff --git a/conversations/conv_016476.json b/conversations/conv_016476.json
deleted file mode 100644
index 7266f8ca45572041f5322a6ecbe7b67f3d040544..0000000000000000000000000000000000000000
--- a/conversations/conv_016476.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "1614-13759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-13759.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016483.json b/conversations/conv_016483.json
deleted file mode 100644
index d5d6c0560f2ec88bc65ac4fbe279c23080df4f04..0000000000000000000000000000000000000000
--- a/conversations/conv_016483.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130870.flac |",
-      "real_speaker_id": "834",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_016495.json b/conversations/conv_016495.json
deleted file mode 100644
index ba00f573987b275b530d1cd8b51ba176595909b7..0000000000000000000000000000000000000000
--- a/conversations/conv_016495.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
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-      "real_speaker_id": "4051",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_016499.json b/conversations/conv_016499.json
deleted file mode 100644
index 5465de8c65485394c531b439fdaf77f08a3e869e..0000000000000000000000000000000000000000
--- a/conversations/conv_016499.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_016505.json b/conversations/conv_016505.json
deleted file mode 100644
index 5fc8d8c5f6e25070214e0e819e448b6b3a9d3ef5..0000000000000000000000000000000000000000
--- a/conversations/conv_016505.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2393/cough/0034.wav",
-      "duration": 0.7500221851028559,
-      "start_time": 23.887040786995556,
-      "speaker_id": "2393"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016509.json b/conversations/conv_016509.json
deleted file mode 100644
index bca62eb1e9f784aebc195cb37fa6a192175320b8..0000000000000000000000000000000000000000
--- a/conversations/conv_016509.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4064-19132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-19132.flac |",
-      "real_speaker_id": "4064",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.743167838022728,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6288-63111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63111.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.248662307220522,
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-      "utterance_id": "4340-15220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 101416
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.06044594363157,
-      "end_time": 26.51817842094524,
-      "duration": 6.457732477313671,
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-      "overlap": false,
-      "utterance_id": "6288-63111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63111.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 49269
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.14164366905051,
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-      "duration": 4.858356330949491,
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-      "utterance_id": "4340-15220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 173077
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016513.json b/conversations/conv_016513.json
deleted file mode 100644
index 302b9e095ca86ef85a6162548af0b7908eee4d70..0000000000000000000000000000000000000000
--- a/conversations/conv_016513.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5840-54193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54193.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.0239276082868125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54188.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7125",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54193.flac |",
-      "real_speaker_id": "5840",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7125-87278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
-      "real_speaker_id": "7125",
-      "position_frames": 56516
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.095557603848405,
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-      "duration_frames": 101914,
-      "overlap": false,
-      "utterance_id": "5840-54193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54193.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 148004
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.40938276291253,
-      "end_time": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
-      "real_speaker_id": "7125",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016518.json b/conversations/conv_016518.json
deleted file mode 100644
index b4a5478bb5bb11b222d4c089b83fd27ae7f01454..0000000000000000000000000000000000000000
--- a/conversations/conv_016518.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127537.flac |",
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-      "utterance_id": "2001-144499",
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-      "position_frames": 162008
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-      "segment_id": "seg0005",
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-      "utterance_id": "534-127538",
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\ No newline at end of file
diff --git a/conversations/conv_016525.json b/conversations/conv_016525.json
deleted file mode 100644
index f865cbf2f29293dbc01aeb5f83213bc7c0011f1f..0000000000000000000000000000000000000000
--- a/conversations/conv_016525.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.07744567033683,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/224/cough/0096.wav",
-      "duration": 1.195657999399316,
-      "start_time": 14.979481025917362,
-      "speaker_id": "224"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7215/cough/0063.wav",
-      "duration": 0.6875909928481436,
-      "start_time": 25.820494550468496,
-      "speaker_id": "7215"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016529.json b/conversations/conv_016529.json
deleted file mode 100644
index 78888d6887d919ea664907e3a4052c60d5d32590..0000000000000000000000000000000000000000
--- a/conversations/conv_016529.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.2601044144960465,
-      "duration": 5.2601044144960465,
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-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.977934761146637,
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-      "duration": 4.923495414998019,
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-      "utterance_id": "1594-135914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.18046226202533,
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-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 84161
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.395207670906494,
-      "end_time": 21.077547564204753,
-      "duration": 4.682339893298258,
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-      "duration_frames": 74917,
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-      "utterance_id": "1594-135914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 78775
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.33213124961565,
-      "end_time": 26.307755988612783,
-      "duration": 4.9756247389971335,
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-      "duration_frames": 79609,
-      "overlap": false,
-      "utterance_id": "3100-142810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3100-142810.flac |",
-      "real_speaker_id": "3100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.12493028022132,
-      "end_time": 32.0,
-      "duration": 4.875069719778679,
-      "start_frame": 433998,
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-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 157759
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-    {
-      "event_class": "Dog",
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-      "event_class": "cough",
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-      "duration": 0.6162809438616221,
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-      "speaker_id": "1594"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016533.json b/conversations/conv_016533.json
deleted file mode 100644
index 897894b1834322a1ccd22148cb3522ecde1c2607..0000000000000000000000000000000000000000
--- a/conversations/conv_016533.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "255-121535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/255-121535.flac |",
-      "real_speaker_id": "255",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3083-7943.flac |",
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-      "utterance_id": "255-121535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/255-121535.flac |",
-      "real_speaker_id": "255",
-      "position_frames": 87421
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3083-7943.flac |",
-      "real_speaker_id": "3083",
-      "position_frames": 77343
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.600416542764382,
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-      "overlap": false,
-      "utterance_id": "255-121535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/255-121535.flac |",
-      "real_speaker_id": "255",
-      "position_frames": 154210
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.840792602033638,
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-      "duration": 5.159207397966362,
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-      "overlap": false,
-      "utterance_id": "3083-7943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3083-7943.flac |",
-      "real_speaker_id": "3083",
-      "position_frames": 157936
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "duration": 1.08,
-      "start_time": 0,
-      "speaker_id": "255"
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-    {
-      "event_class": "cough",
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-      "duration": 0.76,
-      "start_time": 31.24,
-      "speaker_id": "3083"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016544.json b/conversations/conv_016544.json
deleted file mode 100644
index 399d0f1e30538e7850d5eddc19eb18f4042800de..0000000000000000000000000000000000000000
--- a/conversations/conv_016544.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "392-289427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/392-289427.flac |",
-      "real_speaker_id": "392",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/392-131210.flac |",
-      "real_speaker_id": "392",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "392",
-      "position_frames": 83993
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.356084807769747,
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-      "overlap": false,
-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 154864
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/392-289427.flac |",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_016548.json b/conversations/conv_016548.json
deleted file mode 100644
index b7ad38d74ae3bcf5b3d5ace51edd3a751e2bd37b..0000000000000000000000000000000000000000
--- a/conversations/conv_016548.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "248-130644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130644.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-891.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130697.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.294041878989972,
-      "end_time": 32.0,
-      "duration": 3.7059581210100276,
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-      "duration_frames": 59295,
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-      "utterance_id": "4015-63729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-63729.flac |",
-      "real_speaker_id": "4015",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-  "paralinguistic_events": [
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_016552.json b/conversations/conv_016552.json
deleted file mode 100644
index f12e06f20faa3510e21379dfc936a98c3dc68cad..0000000000000000000000000000000000000000
--- a/conversations/conv_016552.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.568042667859157,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.659904643806268,
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-      "overlap": false,
-      "utterance_id": "4211-3835",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3835.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.376751952985674,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58868.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 0
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-      "start_time": 14.01414249791478,
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-      "utterance_id": "5019-274728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-274728.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58869.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3820.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.856165578064644,
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-      "utterance_id": "6139-58869",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58869.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 48647
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "duration": 1.16,
-      "start_time": 30.274596925579967,
-      "speaker_id": "6139"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016559.json b/conversations/conv_016559.json
deleted file mode 100644
index c3cd3e16cc1b4e764a6bb4e8188921830b6cfe42..0000000000000000000000000000000000000000
--- a/conversations/conv_016559.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4520-38484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4520-38484.flac |",
-      "real_speaker_id": "4520",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-75220.flac |",
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-      "real_speaker_id": "4520",
-      "position_frames": 68050
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
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-    {
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-      "real_speaker_id": "2104",
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-      "real_speaker_id": "4520",
-      "position_frames": 145160
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-75220.flac |",
-      "real_speaker_id": "2104",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "47"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016564.json b/conversations/conv_016564.json
deleted file mode 100644
index 6f08fad938d60466253ad105b899df651b2ad395..0000000000000000000000000000000000000000
--- a/conversations/conv_016564.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-    {
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_016565.json b/conversations/conv_016565.json
deleted file mode 100644
index 87522b75e06389e292c73f9fbc85533f30a920c6..0000000000000000000000000000000000000000
--- a/conversations/conv_016565.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4455-14896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-14896.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-14896.flac |",
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-      "utterance_id": "1445-139387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139387.flac |",
-      "real_speaker_id": "1445",
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-      "speaker_id": 1,
-      "start_time": 18.877396580595633,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-36633.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.54846508460652,
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-      "real_speaker_id": "1445",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "4455",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-      "duration": 0.7659828008936398,
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-      "speaker_id": "4455"
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-}
\ No newline at end of file
diff --git a/conversations/conv_016568.json b/conversations/conv_016568.json
deleted file mode 100644
index d307c5f4e73af0e3b0e36487fd6d2d29d9b43d2d..0000000000000000000000000000000000000000
--- a/conversations/conv_016568.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.893999324166334,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-114971.flac |",
-      "real_speaker_id": "8097",
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-      "start_time": 13.228759117140008,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "duration": 6.702610810178979,
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-      "utterance_id": "8097-114971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-114971.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 95812
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.120680779718697,
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-      "utterance_id": "6224-61957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-61957.flac |",
-      "real_speaker_id": "6224",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-      "duration": 1.76,
-      "start_time": 29.506305580687847,
-      "speaker_id": "6224"
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-}
\ No newline at end of file
diff --git a/conversations/conv_016572.json b/conversations/conv_016572.json
deleted file mode 100644
index 3e6c64472c3382885d0e525d2378ab06666d2cfb..0000000000000000000000000000000000000000
--- a/conversations/conv_016572.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "position_frames": 68718
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016575.json b/conversations/conv_016575.json
deleted file mode 100644
index 27d24160e17b7ebbbb5ae8deb0020876786b1242..0000000000000000000000000000000000000000
--- a/conversations/conv_016575.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.65508568533627,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8543-280375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.676537665886773,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_016587.json b/conversations/conv_016587.json
deleted file mode 100644
index d6c44155319e47835175d6e75fa7a43e09bea1e8..0000000000000000000000000000000000000000
--- a/conversations/conv_016587.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11217.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 91636
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_016591.json b/conversations/conv_016591.json
deleted file mode 100644
index 266b37c61037318dc837af26ed384860c6525b29..0000000000000000000000000000000000000000
--- a/conversations/conv_016591.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.266039020698486,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "1264",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "8414-284674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8414-284674.flac |",
-      "real_speaker_id": "8414",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016600.json b/conversations/conv_016600.json
deleted file mode 100644
index e6845385892c4796d15c4233934a4a7f413c0361..0000000000000000000000000000000000000000
--- a/conversations/conv_016600.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7475-232691",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2090-151646.flac |",
-      "real_speaker_id": "2090",
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_016616.json b/conversations/conv_016616.json
deleted file mode 100644
index c1caa44f4d4d78b6d619007daa8b71fc72814db0..0000000000000000000000000000000000000000
--- a/conversations/conv_016616.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "8328-280925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-156757.flac |",
-      "real_speaker_id": "3994",
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-      "event_class": "Frying",
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-      "event_class": "Dog",
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-      "speaker_id": "8328"
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-      "event_class": "cough",
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-      "start_time": 23.482484764504942,
-      "speaker_id": "8328"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016620.json b/conversations/conv_016620.json
deleted file mode 100644
index 872cf6fb36e7bdd841379c19fd3786a827f4b0da..0000000000000000000000000000000000000000
--- a/conversations/conv_016620.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.067320756761692,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "2229-152842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152842.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.391860937851989,
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-      "real_speaker_id": "2229",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152864.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 144747
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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\ No newline at end of file
diff --git a/conversations/conv_016627.json b/conversations/conv_016627.json
deleted file mode 100644
index 9202cfaf36636b35272cac7449624be97fc8d0e2..0000000000000000000000000000000000000000
--- a/conversations/conv_016627.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-28384.flac |",
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-      "real_speaker_id": "2741",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_016631.json b/conversations/conv_016631.json
deleted file mode 100644
index 32ddd1517079dbe9232eade076ec7d2bcc9f7d7a..0000000000000000000000000000000000000000
--- a/conversations/conv_016631.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3549-171171.flac |",
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-      "real_speaker_id": "3549",
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-    {
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-      "utterance_id": "6147-34607",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5468-58929",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_016636.json b/conversations/conv_016636.json
deleted file mode 100644
index e7e2bc652a96baffa3aac0579dbba31faa8bf77f..0000000000000000000000000000000000000000
--- a/conversations/conv_016636.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/584/laugh/0103.wav",
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-      "start_time": 6.380374248519621,
-      "speaker_id": "584"
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-      "speaker_id": "3221"
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-}
\ No newline at end of file
diff --git a/conversations/conv_016641.json b/conversations/conv_016641.json
deleted file mode 100644
index da348a8fd018e4356afba6c19b3683188c5b0089..0000000000000000000000000000000000000000
--- a/conversations/conv_016641.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.679254275192162,
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-      "overlap": false,
-      "utterance_id": "1760-143006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1760-143006.flac |",
-      "real_speaker_id": "1760",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.199055005768635,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1760-143006.flac |",
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-      "utterance_id": "2998-160955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2998-160955.flac |",
-      "real_speaker_id": "2998",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2998-160954.flac |",
-      "real_speaker_id": "2998",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56787.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.370853546930817,
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-      "utterance_id": "1760-143006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1760-143006.flac |",
-      "real_speaker_id": "1760",
-      "position_frames": 168271
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "start_time": 24.797985824075482,
-      "speaker_id": "6010"
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\ No newline at end of file
diff --git a/conversations/conv_016657.json b/conversations/conv_016657.json
deleted file mode 100644
index 78cab80d639e9c0730fe1541e63d88b02cd47e9f..0000000000000000000000000000000000000000
--- a/conversations/conv_016657.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123502.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-281197.flac |",
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-      "real_speaker_id": "8587",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "8587",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.221284976462076,
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-      "real_speaker_id": "446",
-      "position_frames": 111861
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\ No newline at end of file
diff --git a/conversations/conv_016661.json b/conversations/conv_016661.json
deleted file mode 100644
index 5951d354f5cc861f1339f64a28cb688137113659..0000000000000000000000000000000000000000
--- a/conversations/conv_016661.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.56750314560089,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141235.flac |",
-      "real_speaker_id": "2194",
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-      "utterance_id": "7320-93280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-93280.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.971442178503757,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141248.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_016666.json b/conversations/conv_016666.json
deleted file mode 100644
index a6f9b544a161f23c2064fd028e361e363c509734..0000000000000000000000000000000000000000
--- a/conversations/conv_016666.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4145-14013",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-176278.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4145/laugh/0058.wav",
-      "duration": 1.3464006304888827,
-      "start_time": 18.819237482075163,
-      "speaker_id": "4145"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016670.json b/conversations/conv_016670.json
deleted file mode 100644
index 5ce7b019fd875f8ae595ca44f206afc546747170..0000000000000000000000000000000000000000
--- a/conversations/conv_016670.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.738613023815864,
-      "duration": 5.738613023815864,
-      "start_frame": 0,
-      "duration_frames": 91817,
-      "overlap": false,
-      "utterance_id": "2574-128278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128278.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.660069433035192,
-      "end_time": 10.951014137832242,
-      "duration": 4.290944704797051,
-      "start_frame": 106561,
-      "duration_frames": 68655,
-      "overlap": false,
-      "utterance_id": "915-163372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163372.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.98856435062854,
-      "end_time": 15.082810572144428,
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-      "overlap": true,
-      "utterance_id": "915-163371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163371.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.545558892531378,
-      "end_time": 20.063615102094396,
-      "duration": 4.518056209563018,
-      "start_frame": 248728,
-      "duration_frames": 72288,
-      "overlap": true,
-      "utterance_id": "3125-132586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.972903850996133,
-      "end_time": 27.402104713550195,
-      "duration": 6.42920086255406,
-      "start_frame": 335566,
-      "duration_frames": 102867,
-      "overlap": false,
-      "utterance_id": "915-163371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163371.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 65507
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.32798536971552,
-      "end_time": 32.0,
-      "duration": 3.6720146302844796,
-      "start_frame": 453247,
-      "duration_frames": 58752,
-      "overlap": false,
-      "utterance_id": "2574-128278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128278.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 91817
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 26.553401360544218,
-      "start_time": 4.9403727074559365
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_7.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/915/cough/0131.wav",
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-      "start_time": 11.077533425012547,
-      "speaker_id": "915"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/915/laugh/0112.wav",
-      "duration": 1.24,
-      "start_time": 11.24340431435716,
-      "speaker_id": "915"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/915/cough/0011.wav",
-      "duration": 1.108547255189503,
-      "start_time": 9.825963471068619,
-      "speaker_id": "915"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2574/laugh/0027.wav",
-      "duration": 1.32,
-      "start_time": 26.792658166801782,
-      "speaker_id": "2574"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016677.json b/conversations/conv_016677.json
deleted file mode 100644
index fac011126626a429414445a65b639131d6187ca9..0000000000000000000000000000000000000000
--- a/conversations/conv_016677.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.622111873136115,
-      "duration": 4.622111873136115,
-      "start_frame": 0,
-      "duration_frames": 73953,
-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.448433607496851,
-      "end_time": 10.537741776115016,
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-      "duration_frames": 97428,
-      "overlap": true,
-      "utterance_id": "3240-131232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131232.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.566622304331993,
-      "end_time": 17.4231344058774,
-      "duration": 5.856512101545406,
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-      "duration_frames": 93704,
-      "overlap": false,
-      "utterance_id": "8770-295463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295463.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.46565721284199,
-      "end_time": 25.379306298950723,
-      "duration": 6.913649086108734,
-      "start_frame": 295450,
-      "duration_frames": 110618,
-      "overlap": false,
-      "utterance_id": "8770-295462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295462.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.18613118208832,
-      "end_time": 30.645638057764675,
-      "duration": 4.459506875676354,
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-      "duration_frames": 71352,
-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 73953
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.298592721056217,
-      "end_time": 32.0,
-      "duration": 0.7014072789437833,
-      "start_frame": 500777,
-      "duration_frames": 11222,
-      "overlap": false,
-      "utterance_id": "3240-131232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131232.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 97428
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
-      "duration": 0.837891156462585,
-      "start_time": 21.968382512175808
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
-      "duration": 2.236848072562358,
-      "start_time": 24.22371835623359
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2100/cough/0070.wav",
-      "duration": 0.5556585080378966,
-      "start_time": 30.797318847782115,
-      "speaker_id": "2100"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016682.json b/conversations/conv_016682.json
deleted file mode 100644
index dc0e63c3232915780c340cfee32688a9d311c215..0000000000000000000000000000000000000000
--- a/conversations/conv_016682.json
+++ /dev/null
@@ -1,95 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.315096176592892,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.859146645487015,
-      "duration": 6.859146645487015,
-      "start_frame": 0,
-      "duration_frames": 109746,
-      "overlap": false,
-      "utterance_id": "8262-279161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.4234192040392974,
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-      "duration_frames": 93634,
-      "overlap": false,
-      "utterance_id": "7246-63505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-63505.flac |",
-      "real_speaker_id": "7246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.492066438476385,
-      "end_time": 18.428004236852086,
-      "duration": 4.935937798375702,
-      "start_frame": 215873,
-      "duration_frames": 78975,
-      "overlap": false,
-      "utterance_id": "5390-30102",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.948911668129096,
-      "end_time": 25.860078277639836,
-      "duration": 6.91116660951074,
-      "start_frame": 303182,
-      "duration_frames": 110578,
-      "overlap": false,
-      "utterance_id": "8262-279161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
-      "position_frames": 109746
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.461148048930784,
-      "end_time": 31.315096176592892,
-      "duration": 4.8539481276621075,
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-      "duration_frames": 77663,
-      "overlap": false,
-      "utterance_id": "7246-63505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-63505.flac |",
-      "real_speaker_id": "7246",
-      "position_frames": 93634
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
-      "start_time": 9.891079613710419
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
-      "duration": 3.0364263602927286,
-      "start_time": 19.530166520139442
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_016689.json b/conversations/conv_016689.json
deleted file mode 100644
index 369b235cbd72a6fcaa203c330c0b5c6ab1b3a270..0000000000000000000000000000000000000000
--- a/conversations/conv_016689.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.539348615905762,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.295517214117802,
-      "duration": 5.295517214117802,
-      "start_frame": 0,
-      "duration_frames": 84728,
-      "overlap": false,
-      "utterance_id": "7959-109176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109176.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.202384840154113,
-      "end_time": 11.593199689339905,
-      "duration": 5.390814849185793,
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-      "duration_frames": 86253,
-      "overlap": false,
-      "utterance_id": "398-130093",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-130093.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.09838918371658,
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-      "start_frame": 193574,
-      "duration_frames": 94055,
-      "overlap": false,
-      "utterance_id": "7959-109185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109185.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.619802263730286,
-      "end_time": 22.858528046515563,
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-      "duration_frames": 67819,
-      "overlap": false,
-      "utterance_id": "398-123602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-123602.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.201126330350252,
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-      "duration": 5.210459610449103,
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-      "utterance_id": "7959-109176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109176.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 84728
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "start_frame": 464387,
-      "duration_frames": 40242,
-      "overlap": true,
-      "utterance_id": "398-130093",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-130093.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 86253
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/398/cough/0083.wav",
-      "duration": 1.16,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7959/cough/0072.wav",
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-      "start_time": 18.1469232698283,
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-    },
-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 23.15361167341139,
-      "speaker_id": "398"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7959/cough/0082.wav",
-      "duration": 1.04,
-      "start_time": 25.11722459869331,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/398/laugh/0054.wav",
-      "duration": 1.0990545968200802,
-      "start_time": 30.900945403179918,
-      "speaker_id": "398"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016694.json b/conversations/conv_016694.json
deleted file mode 100644
index 3f1925105802d4290e3501fb6c7289317d6deb08..0000000000000000000000000000000000000000
--- a/conversations/conv_016694.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.395455613178576,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-80189.flac |",
-      "real_speaker_id": "4519",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_016698.json b/conversations/conv_016698.json
deleted file mode 100644
index 7eedb1e9559f7b4883364c5cc165ed46221369fe..0000000000000000000000000000000000000000
--- a/conversations/conv_016698.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.02518386692677,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "4773-19207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-19207.flac |",
-      "real_speaker_id": "4773",
-      "position_frames": 0
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-      "start_time": 7.568838927432988,
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-      "real_speaker_id": "699",
-      "position_frames": 59358
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-      "utterance_id": "1923-161975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161975.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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\ No newline at end of file
diff --git a/conversations/conv_016704.json b/conversations/conv_016704.json
deleted file mode 100644
index de1eea28fb5129e7fb5e844aacc5bd93afc1f407..0000000000000000000000000000000000000000
--- a/conversations/conv_016704.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "568",
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-      "utterance_id": "2137-131751",
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-  "foreground_events": [
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-      "start_time": 30.759831168438993,
-      "speaker_id": "2137"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016708.json b/conversations/conv_016708.json
deleted file mode 100644
index 80cdce1f9295bd915c655c190fc6db6f4946c325..0000000000000000000000000000000000000000
--- a/conversations/conv_016708.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.007244629190943,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1536-138488.flac |",
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-      "position_frames": 0
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-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 12.361627042164255,
-      "speaker_id": "460"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/782/laugh/0007.wav",
-      "duration": 1.55952750664587,
-      "start_time": 11.026595993882808,
-      "speaker_id": "782"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/782/cough/0049.wav",
-      "duration": 1.1309867764646553,
-      "start_time": 16.682869524494116,
-      "speaker_id": "782"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/460/laugh/0051.wav",
-      "duration": 0.6107407286230223,
-      "start_time": 18.188932610636776,
-      "speaker_id": "460"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1536/cough/0000.wav",
-      "duration": 1.245446717566712,
-      "start_time": 22.7768725208351,
-      "speaker_id": "1536"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016709.json b/conversations/conv_016709.json
deleted file mode 100644
index 3634364925fa8235ca13fa812019819e59505f98..0000000000000000000000000000000000000000
--- a/conversations/conv_016709.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3591501968460435,
-      "duration": 3.3591501968460435,
-      "start_frame": 0,
-      "duration_frames": 53746,
-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.5825343811813517,
-      "end_time": 7.457992890644299,
-      "duration": 3.8754585094629466,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47241.flac |",
-      "real_speaker_id": "5628",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 53746
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.182022682700442,
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-      "overlap": false,
-      "utterance_id": "5628-22450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-22450.flac |",
-      "real_speaker_id": "5628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 16.720825410369216,
-      "end_time": 21.958237370059745,
-      "duration": 5.2374119596905295,
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-      "duration_frames": 83798,
-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 117505
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.022559993034108,
-      "end_time": 28.1675128591542,
-      "duration": 5.144952866120091,
-      "start_frame": 368360,
-      "duration_frames": 82319,
-      "overlap": false,
-      "utterance_id": "5628-47240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47240.flac |",
-      "real_speaker_id": "5628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.71637595617752,
-      "end_time": 32.0,
-      "duration": 3.2836240438224813,
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-      "duration_frames": 52537,
-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 201303
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "speaker_id": "81"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016712.json b/conversations/conv_016712.json
deleted file mode 100644
index 3f2a4e1d31e4112e114f3e381523cab33e987378..0000000000000000000000000000000000000000
--- a/conversations/conv_016712.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.67131567929436,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2292-150679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150679.flac |",
-      "real_speaker_id": "2292",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.8238558019211775,
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-      "position_frames": 0
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-      "utterance_id": "480-127525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-127525.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.61427219238782,
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-      "utterance_id": "6294-85684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 77904
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.35159868310447,
-      "end_time": 24.079396745754607,
-      "duration": 4.727798062650137,
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-      "duration_frames": 75644,
-      "overlap": false,
-      "utterance_id": "2292-150689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150689.flac |",
-      "real_speaker_id": "2292",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.994216534347824,
-      "end_time": 31.67131567929436,
-      "duration": 6.677099144946535,
-      "start_frame": 399907,
-      "duration_frames": 106833,
-      "overlap": false,
-      "utterance_id": "6294-86679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-86679.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6294/cough/0112.wav",
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-      "speaker_id": "6294"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2292/cough/0101.wav",
-      "duration": 0.6758623634026597,
-      "start_time": 18.53868002015595,
-      "speaker_id": "2292"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016723.json b/conversations/conv_016723.json
deleted file mode 100644
index 717ee8d88f5fa0e7fc407a8b1fb5ce22f27611b7..0000000000000000000000000000000000000000
--- a/conversations/conv_016723.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.715205654988802,
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-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.64450323228442,
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 52319
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 102853
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "2185-150124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150124.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.17181670261435,
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-      "overlap": false,
-      "utterance_id": "2185-150123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.682809640741322,
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 102058
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-    {
-      "event_class": "Running_water",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3587/laugh/0026.wav",
-      "duration": 1.0,
-      "start_time": 2.630828516032662,
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-    {
-      "event_class": "laugh",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_016724.json b/conversations/conv_016724.json
deleted file mode 100644
index 9eacbebd4cc42f9aa1e3c8954f95141a80d5dcc6..0000000000000000000000000000000000000000
--- a/conversations/conv_016724.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7764-106805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
-      "real_speaker_id": "7764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "568",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_016728.json b/conversations/conv_016728.json
deleted file mode 100644
index 6cbedfad3a9dc12c0e5bcec1a003a3dcc208f73d..0000000000000000000000000000000000000000
--- a/conversations/conv_016728.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-122025.flac |",
-      "real_speaker_id": "176",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 106713
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-123269.flac |",
-      "real_speaker_id": "176",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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\ No newline at end of file
diff --git a/conversations/conv_016732.json b/conversations/conv_016732.json
deleted file mode 100644
index 7654d6f9582b51da273e0023ea4af9de6b34dca2..0000000000000000000000000000000000000000
--- a/conversations/conv_016732.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-27670.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-93308.flac |",
-      "real_speaker_id": "7556",
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-      "real_speaker_id": "4853",
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-      "start_time": 21.390971102950612,
-      "speaker_id": "4853"
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-}
\ No newline at end of file
diff --git a/conversations/conv_016735.json b/conversations/conv_016735.json
deleted file mode 100644
index f23f99c70321325a6e00104f24667208de61ff86..0000000000000000000000000000000000000000
--- a/conversations/conv_016735.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "542-125351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125351.flac |",
-      "real_speaker_id": "542",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140047.flac |",
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-    {
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-      "real_speaker_id": "5186",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_016745.json b/conversations/conv_016745.json
deleted file mode 100644
index d18d749a9295a52843ec7ec7acd8bc1133674d5c..0000000000000000000000000000000000000000
--- a/conversations/conv_016745.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13132.flac |",
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-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-      "utterance_id": "1664-122623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 154624
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 3.8003785156201997
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_016749.json b/conversations/conv_016749.json
deleted file mode 100644
index c1b34c41013cbd85de33506cfded75007a451014..0000000000000000000000000000000000000000
--- a/conversations/conv_016749.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.439885596299148,
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-      "utterance_id": "1027-125140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
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-      "start_time": 13.79495320824347,
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-      "overlap": false,
-      "utterance_id": "7357-94126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.511129715418523,
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-      "duration": 4.621609067630792,
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-      "duration_frames": 73945,
-      "overlap": false,
-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.97171630025479,
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-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 97627
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.507461902615383,
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-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 73945
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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\ No newline at end of file
diff --git a/conversations/conv_016753.json b/conversations/conv_016753.json
deleted file mode 100644
index 7d5dd714bc68c1752e13d2aa042b69967ff0ad37..0000000000000000000000000000000000000000
--- a/conversations/conv_016753.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.515744954242003,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7134-67200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67200.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 4.908236208834297,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14674.flac |",
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-      "utterance_id": "3656-168609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168609.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14674.flac |",
-      "real_speaker_id": "3615",
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-      "segment_id": "seg0004",
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-      "utterance_id": "7134-67200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67200.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 72882
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.228642798014672,
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-      "utterance_id": "3615-14672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14672.flac |",
-      "real_speaker_id": "3615",
-      "position_frames": 0
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-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 0.78,
-      "start_time": 29.412287084919132,
-      "speaker_id": "3615"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016762.json b/conversations/conv_016762.json
deleted file mode 100644
index 4e6a519e15737609a9fa6af32119d12a3effc267..0000000000000000000000000000000000000000
--- a/conversations/conv_016762.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8200-278238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278238.flac |",
-      "real_speaker_id": "8200",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.6467329763317915,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-11512.flac |",
-      "real_speaker_id": "3994",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-149798.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3926",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016765.json b/conversations/conv_016765.json
deleted file mode 100644
index 7d8827abfc0981889c999d33dd19811be100f101..0000000000000000000000000000000000000000
--- a/conversations/conv_016765.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6426-64290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64290.flac |",
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-      "real_speaker_id": "272",
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-      "real_speaker_id": "6426",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130229.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_016769.json b/conversations/conv_016769.json
deleted file mode 100644
index 5ab7345b5d2001873dd6480eb42c97d08a0aac23..0000000000000000000000000000000000000000
--- a/conversations/conv_016769.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130697.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 0
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-      "real_speaker_id": "1492",
-      "position_frames": 0
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-      "utterance_id": "1492-55449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-55449.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
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\ No newline at end of file
diff --git a/conversations/conv_016773.json b/conversations/conv_016773.json
deleted file mode 100644
index fcd424d47a8b6a3c418a616c8cb0a1593a5461bc..0000000000000000000000000000000000000000
--- a/conversations/conv_016773.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016774.json b/conversations/conv_016774.json
deleted file mode 100644
index fe1333973ed0aeb0aeea151b200a843fcdcdab21..0000000000000000000000000000000000000000
--- a/conversations/conv_016774.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "position_frames": 78192
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016786.json b/conversations/conv_016786.json
deleted file mode 100644
index c11183939aa3a11fe8e1925360412266a6282def..0000000000000000000000000000000000000000
--- a/conversations/conv_016786.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.9962952623374655,
-      "duration": 6.9962952623374655,
-      "start_frame": 0,
-      "duration_frames": 111940,
-      "overlap": false,
-      "utterance_id": "2607-87140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-87140.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.529913825163979,
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-      "overlap": false,
-      "utterance_id": "2607-177740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177740.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.953607348605878,
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-      "overlap": false,
-      "utterance_id": "6077-58755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58755.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.7078811815436,
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-      "duration_frames": 52932,
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-      "utterance_id": "2607-87140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-87140.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 111940
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.742116385085854,
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-      "overlap": false,
-      "utterance_id": "6077-58756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58756.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.678911424465433,
-      "end_time": 30.927555821185454,
-      "duration": 4.24864439672002,
-      "start_frame": 426862,
-      "duration_frames": 67978,
-      "overlap": false,
-      "utterance_id": "2607-177740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177740.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 67482
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.078016385847423,
-      "end_time": 32.0,
-      "duration": 0.9219836141525768,
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-      "utterance_id": "6459-70120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70120.flac |",
-      "real_speaker_id": "6459",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/laugh/0118.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "2607"
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-    {
-      "event_class": "cough",
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-      "duration": 1.1,
-      "start_time": 7.047572021021603,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/laugh/0130.wav",
-      "duration": 1.1106127184841121,
-      "start_time": 11.867154497787892,
-      "speaker_id": "2607"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016790.json b/conversations/conv_016790.json
deleted file mode 100644
index c29c4cd74ecc7dfc71a0fe9ef851660863cfbd1a..0000000000000000000000000000000000000000
--- a/conversations/conv_016790.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.216150561165315,
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-      "utterance_id": "6145-54685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54685.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.429505431622541,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-134968.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "6145-54685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54685.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 83458
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1171-130776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.990863712731997,
-      "end_time": 28.636456339135698,
-      "duration": 5.645592626403702,
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-      "duration_frames": 90329,
-      "overlap": false,
-      "utterance_id": "6145-54685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54685.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 148765
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.991326259385453,
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-      "duration": 3.0086737406145474,
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-      "utterance_id": "250-140277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-140277.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6145/cough/0020.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016801.json b/conversations/conv_016801.json
deleted file mode 100644
index 2b4a115d4ed629a9155ec1f8e0ca8e0794900e6f..0000000000000000000000000000000000000000
--- a/conversations/conv_016801.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6993-83606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83606.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-29101.flac |",
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-      "real_speaker_id": "1509",
-      "position_frames": 64818
-    },
-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
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-      "speaker_id": "5093"
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-}
\ No newline at end of file
diff --git a/conversations/conv_016817.json b/conversations/conv_016817.json
deleted file mode 100644
index f9d6a119851568a34f743a1215881010051e2863..0000000000000000000000000000000000000000
--- a/conversations/conv_016817.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7226-86964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86964.flac |",
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-    {
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7226/laugh/0006.wav",
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-      "speaker_id": "7226"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2740/laugh/0013.wav",
-      "duration": 0.5649455692377521,
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-      "duration": 1.0262220589402316,
-      "start_time": 29.910510170723583,
-      "speaker_id": "7226"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016821.json b/conversations/conv_016821.json
deleted file mode 100644
index ae1bdcaee52d3c0fa549b26c66f2dcf7517e1fb9..0000000000000000000000000000000000000000
--- a/conversations/conv_016821.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.303440705182568,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 101792
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-      "overlap": false,
-      "utterance_id": "428-125878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125878.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.962494752395706,
-      "end_time": 22.03855509838541,
-      "duration": 4.076060345989703,
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-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 186305
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.749313311233653,
-      "end_time": 29.616051166534064,
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-      "utterance_id": "428-125877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125877.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.208544853223742,
-      "end_time": 32.0,
-      "duration": 1.7914551467762578,
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-      "duration_frames": 28663,
-      "overlap": false,
-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 251521
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/311/laugh/0024.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/428/laugh/0003.wav",
-      "duration": 0.8706414515729023,
-      "start_time": 29.889125723902804,
-      "speaker_id": "428"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016826.json b/conversations/conv_016826.json
deleted file mode 100644
index 26d20017d2fd3c05fdc35668a8e361d862f3f043..0000000000000000000000000000000000000000
--- a/conversations/conv_016826.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.290963077586362,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "204-148920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-148920.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-121385.flac |",
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-      "utterance_id": "1485-121385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-121385.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 63990
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.225223474017582,
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-      "utterance_id": "204-287139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-287139.flac |",
-      "real_speaker_id": "204",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.45665921144137,
-      "end_time": 26.159169701590358,
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-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.443822185142526,
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-      "duration": 3.847140892443834,
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-      "overlap": true,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 75240
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016836.json b/conversations/conv_016836.json
deleted file mode 100644
index c02f01e8e9124addea6134d9f766e744850d0c46..0000000000000000000000000000000000000000
--- a/conversations/conv_016836.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.450500621712285,
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-      "utterance_id": "4748-28399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-28399.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 78042
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-25901.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "5868-54659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5868-54659.flac |",
-      "real_speaker_id": "5868",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "5868-66166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5868-66166.flac |",
-      "real_speaker_id": "5868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.263996584454908,
-      "end_time": 32.0,
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-      "position_frames": 76162
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5868/laugh/0093.wav",
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-      "start_time": 28.461784748491926,
-      "speaker_id": "5868"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016837.json b/conversations/conv_016837.json
deleted file mode 100644
index cc23efcaa2abd208ed75e505c011eabc195c5dcf..0000000000000000000000000000000000000000
--- a/conversations/conv_016837.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.135296271018042,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "end_time": 4.009448333158481,
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-      "utterance_id": "7687-107687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4262",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
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-      "position_frames": 64151
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-    {
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-      "speaker_id": "4262"
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-}
\ No newline at end of file
diff --git a/conversations/conv_016840.json b/conversations/conv_016840.json
deleted file mode 100644
index 9e8606aeb773cf2638dda745af119b7c4e41f8a0..0000000000000000000000000000000000000000
--- a/conversations/conv_016840.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.78080446909899,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-74179.flac |",
-      "real_speaker_id": "6821",
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-      "utterance_id": "6821-74180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-74180.flac |",
-      "real_speaker_id": "6821",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.143994597499688,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-99140.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 70194
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.505133237402333,
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-      "utterance_id": "7434-96672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 27.234393735261584,
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-      "utterance_id": "7649-99140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-99140.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 173624
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016856.json b/conversations/conv_016856.json
deleted file mode 100644
index 2fddc48509ebab90de32da5e966a9a91b8c3c3c2..0000000000000000000000000000000000000000
--- a/conversations/conv_016856.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4779-54868.flac |",
-      "real_speaker_id": "4779",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7769-99396.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "6373-65772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 76433
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.65090530780521,
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-      "overlap": false,
-      "utterance_id": "6373-65772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 172544
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016860.json b/conversations/conv_016860.json
deleted file mode 100644
index 1fd00d2121dc7068ad90514db28f691929f512da..0000000000000000000000000000000000000000
--- a/conversations/conv_016860.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.684519789039316,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-292604.flac |",
-      "real_speaker_id": "3967",
-      "position_frames": 0
-    },
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-      "utterance_id": "5993-19685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19685.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.15170405992307,
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-      "utterance_id": "3967-29012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-29012.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6804",
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "5993-36961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-36961.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016876.json b/conversations/conv_016876.json
deleted file mode 100644
index 818ac26bb401326996a840769395cd94d7caf43f..0000000000000000000000000000000000000000
--- a/conversations/conv_016876.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.549872370550855,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7241-90852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-113322.flac |",
-      "real_speaker_id": "7988",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_016883.json b/conversations/conv_016883.json
deleted file mode 100644
index 2059b0ccc0153cb001e2326907af5963cf7121bc..0000000000000000000000000000000000000000
--- a/conversations/conv_016883.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-122809.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155891.flac |",
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_016895.json b/conversations/conv_016895.json
deleted file mode 100644
index ec6d75a25d7a02b12ade19435c7b986a58edc82e..0000000000000000000000000000000000000000
--- a/conversations/conv_016895.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_016899.json b/conversations/conv_016899.json
deleted file mode 100644
index 7a4649d60c76fb3b3507a786d15947fe18bde35f..0000000000000000000000000000000000000000
--- a/conversations/conv_016899.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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\ No newline at end of file
diff --git a/conversations/conv_016905.json b/conversations/conv_016905.json
deleted file mode 100644
index 168552c48797ae6ab2a6e14a8ccdae5dd5b70179..0000000000000000000000000000000000000000
--- a/conversations/conv_016905.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016909.json b/conversations/conv_016909.json
deleted file mode 100644
index 6fb74788b5d603b55ad64ca2b8637330da639534..0000000000000000000000000000000000000000
--- a/conversations/conv_016909.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-2500.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61948.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29142.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_016913.json b/conversations/conv_016913.json
deleted file mode 100644
index e32843e9957e27b182f694f3beef469a66413b95..0000000000000000000000000000000000000000
--- a/conversations/conv_016913.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_016918.json b/conversations/conv_016918.json
deleted file mode 100644
index a5353c842be3a21d6c72d79e3bb6f8181b756f4d..0000000000000000000000000000000000000000
--- a/conversations/conv_016918.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4899-32637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32637.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
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-      "real_speaker_id": "1731",
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\ No newline at end of file
diff --git a/conversations/conv_016924.json b/conversations/conv_016924.json
deleted file mode 100644
index 42eb73b03d230af9b29d131eab50076a61a23a8d..0000000000000000000000000000000000000000
--- a/conversations/conv_016924.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7220-77911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77911.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-102849.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-290631.flac |",
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-      "speaker_id": "3686"
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-}
\ No newline at end of file
diff --git a/conversations/conv_016925.json b/conversations/conv_016925.json
deleted file mode 100644
index c40323f5a2b815e6d9d64d19f20171487e17b719..0000000000000000000000000000000000000000
--- a/conversations/conv_016925.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7868-110705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110705.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 0
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-      "start_time": 5.280038687371568,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 0
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-      "utterance_id": "7868-110706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110706.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.247153738075397,
-      "end_time": 27.723807534136682,
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-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 103115
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.78930062367268,
-      "end_time": 32.0,
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-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 174741
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_016929.json b/conversations/conv_016929.json
deleted file mode 100644
index 298664ed522ead821ca5cd124b16fe4cb46d2f41..0000000000000000000000000000000000000000
--- a/conversations/conv_016929.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "overlap": false,
-      "utterance_id": "7603-274560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-12707.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7871-107223.flac |",
-      "real_speaker_id": "7871",
-      "position_frames": 75508
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-185488.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 61558
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.258244264963025,
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-      "start_time": 0,
-      "speaker_id": "7603"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "4226"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016933.json b/conversations/conv_016933.json
deleted file mode 100644
index 2db14ad17f36af2251f254c190612f941c1280d8..0000000000000000000000000000000000000000
--- a/conversations/conv_016933.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6436-111963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-111963.flac |",
-      "real_speaker_id": "6436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.127202257206215,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153964.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-104980.flac |",
-      "real_speaker_id": "6436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153964.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 105908
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2348-143895",
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-      "real_speaker_id": "2348",
-      "position_frames": 95046
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2348/cough/0047.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2348/laugh/0083.wav",
-      "duration": 0.5750436002715186,
-      "start_time": 29.216442044335018,
-      "speaker_id": "2348"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016944.json b/conversations/conv_016944.json
deleted file mode 100644
index 986fac6f552fee24db9f807afc2eafa453d3324d..0000000000000000000000000000000000000000
--- a/conversations/conv_016944.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1447-17506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1447-17506.flac |",
-      "real_speaker_id": "1447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_016948.json b/conversations/conv_016948.json
deleted file mode 100644
index 53a52355d4942bfe78eccdfccf93f9d4b39da030..0000000000000000000000000000000000000000
--- a/conversations/conv_016948.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_016952.json b/conversations/conv_016952.json
deleted file mode 100644
index 6a747bcbbb710fe309196918c806a0c356fb1346..0000000000000000000000000000000000000000
--- a/conversations/conv_016952.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_016959.json b/conversations/conv_016959.json
deleted file mode 100644
index 69e8dab444cee4e8d5e03260c8b170644a332af3..0000000000000000000000000000000000000000
--- a/conversations/conv_016959.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_016963.json b/conversations/conv_016963.json
deleted file mode 100644
index 502a18d96daa200dc44cf5109f89bd9f8c4056ba..0000000000000000000000000000000000000000
--- a/conversations/conv_016963.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_016964.json b/conversations/conv_016964.json
deleted file mode 100644
index 3d0b433c1328871511a13574273473f172fe1b84..0000000000000000000000000000000000000000
--- a/conversations/conv_016964.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76145.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7892-295954.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_016968.json b/conversations/conv_016968.json
deleted file mode 100644
index 4015b2ac51a238d957224d74c9b17130484cb545..0000000000000000000000000000000000000000
--- a/conversations/conv_016968.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_016972.json b/conversations/conv_016972.json
deleted file mode 100644
index 3f057ab68fa5c53564b7abc40a9edff278b463e5..0000000000000000000000000000000000000000
--- a/conversations/conv_016972.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-756.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_016973.json b/conversations/conv_016973.json
deleted file mode 100644
index bd0c58cc11c9b766df4629ae33d524f918979105..0000000000000000000000000000000000000000
--- a/conversations/conv_016973.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "6077",
-      "position_frames": 87282
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130227.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7518/laugh/0080.wav",
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-      "start_time": 30.117125406347235,
-      "speaker_id": "272"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_016987.json b/conversations/conv_016987.json
deleted file mode 100644
index 8b3507d9e1d4a6a3a58746cd2d9dded7179dab21..0000000000000000000000000000000000000000
--- a/conversations/conv_016987.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "52-121057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 5.256326282826528,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
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-      "position_frames": 60189
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_016991.json b/conversations/conv_016991.json
deleted file mode 100644
index 50433741017c3980e624e28df7fbddb5385df362..0000000000000000000000000000000000000000
--- a/conversations/conv_016991.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131003.flac |",
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-      "real_speaker_id": "2545",
-      "position_frames": 201247
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-      "real_speaker_id": "850",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2545-135235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
-      "position_frames": 307288
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2545/laugh/0007.wav",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_017007.json b/conversations/conv_017007.json
deleted file mode 100644
index 093f6358aca8a362a0bee4733e528bc946a2c4ba..0000000000000000000000000000000000000000
--- a/conversations/conv_017007.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "2574-128283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128283.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/323/laugh/0050.wav",
-      "duration": 0.92,
-      "start_time": 14.28402338621151,
-      "speaker_id": "323"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/323/cough/0077.wav",
-      "duration": 0.7757525312088478,
-      "start_time": 24.76102704733088,
-      "speaker_id": "323"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3356/laugh/0039.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "3356"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017011.json b/conversations/conv_017011.json
deleted file mode 100644
index b24c1f22dc484f94084403f2ce78db4fd6df8725..0000000000000000000000000000000000000000
--- a/conversations/conv_017011.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7383283694373173,
-      "duration": 3.7383283694373173,
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-      "overlap": false,
-      "utterance_id": "1349-135892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
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-    {
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-      "start_time": 3.0959320733420235,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-126209.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
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-      "end_time": 12.878567807826125,
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-      "overlap": false,
-      "utterance_id": "5854-287849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-287849.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.452988121565426,
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-      "duration": 5.016028719793297,
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-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-50960.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 0
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-    {
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-      "utterance_id": "93-124558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-124558.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.734729789369982,
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-      "duration": 2.2652702106300175,
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-      "utterance_id": "1349-135892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
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-      "position_frames": 59813
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 21.05861678004535,
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-      "event_class": "Dog",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/93/cough/0071.wav",
-      "duration": 1.32,
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-      "speaker_id": "93"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "5854"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5854/laugh/0080.wav",
-      "duration": 0.7098307803940165,
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-      "start_time": 21.16302870314374,
-      "speaker_id": "93"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/93/cough/0087.wav",
-      "duration": 0.8353472283951093,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1349/laugh/0061.wav",
-      "duration": 1.6,
-      "start_time": 30.19887055231467,
-      "speaker_id": "1349"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017020.json b/conversations/conv_017020.json
deleted file mode 100644
index 7c5e70575c7c221bfbdd761b3478bcd8f26ebd64..0000000000000000000000000000000000000000
--- a/conversations/conv_017020.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.5510268858847933,
-      "start_frame": 0,
-      "duration_frames": 56816,
-      "overlap": false,
-      "utterance_id": "5620-40470",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40470.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.412124092042134,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-69411.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40470.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 56816
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1505-1304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1304.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.757305553324212,
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-      "duration_frames": 51617,
-      "overlap": false,
-      "utterance_id": "6519-69411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-69411.flac |",
-      "real_speaker_id": "6519",
-      "position_frames": 97195
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.558167620893602,
-      "end_time": 28.908004299140472,
-      "duration": 5.349836678246868,
-      "start_frame": 376930,
-      "duration_frames": 85597,
-      "overlap": false,
-      "utterance_id": "1505-1303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1303.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.164618085290073,
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-      "duration": 2.8353819147099273,
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-      "utterance_id": "5620-40470",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40470.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 114966
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_017026.json b/conversations/conv_017026.json
deleted file mode 100644
index 77c39acf73d303ac47261c48dd8d93db3b8445c4..0000000000000000000000000000000000000000
--- a/conversations/conv_017026.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6269-66184",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66184.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
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-    {
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-      "start_time": 4.401269375700335,
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-      "real_speaker_id": "5635",
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-      "real_speaker_id": "4345",
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-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "5635",
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 19.568688376859175,
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-      "real_speaker_id": "6269",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 79238
-    },
-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "5635-58137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5635-58137.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 18.002514076554093,
-      "speaker_id": "6269"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017027.json b/conversations/conv_017027.json
deleted file mode 100644
index 7dd6b4173a80165f0ad8af4ffa75f531e89bfb11..0000000000000000000000000000000000000000
--- a/conversations/conv_017027.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "834-130870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130870.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "834",
-      "position_frames": 199898
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_017031.json b/conversations/conv_017031.json
deleted file mode 100644
index 1f7459b161b9af3413e9a9d8d8af052e32a9de65..0000000000000000000000000000000000000000
--- a/conversations/conv_017031.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132705.flac |",
-      "real_speaker_id": "948",
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\ No newline at end of file
diff --git a/conversations/conv_017036.json b/conversations/conv_017036.json
deleted file mode 100644
index ec664446f7759c6205381979ab9af98449c726c7..0000000000000000000000000000000000000000
--- a/conversations/conv_017036.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
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-}
\ No newline at end of file
diff --git a/conversations/conv_017046.json b/conversations/conv_017046.json
deleted file mode 100644
index 2ecf76e2f98b474d7db3fbe03a3bf63399303921..0000000000000000000000000000000000000000
--- a/conversations/conv_017046.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
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-      "speaker_id": "637"
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-      "duration": 1.24,
-      "start_time": 26.219424160396983,
-      "speaker_id": "8088"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017050.json b/conversations/conv_017050.json
deleted file mode 100644
index 2c6cdd1de3b19d5620e903a4a50f063e037d385b..0000000000000000000000000000000000000000
--- a/conversations/conv_017050.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.9026930087631,
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-      "utterance_id": "2185-150123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.303103205192361,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166570.flac |",
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-      "position_frames": 0
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-      "utterance_id": "3467-166570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166570.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 74371
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.604187290052593,
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-      "utterance_id": "3235-28433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-28433.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.199503413488085,
-      "end_time": 23.545253712403913,
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-      "utterance_id": "2185-150123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 78443
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.147422458116687,
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-      "overlap": true,
-      "utterance_id": "3235-11599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-11599.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.2219307877913,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-28433.flac |",
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-  "background_events": [],
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-}
\ No newline at end of file
diff --git a/conversations/conv_017051.json b/conversations/conv_017051.json
deleted file mode 100644
index ce5c7138a3c8c936fd02e51e12fc9117d96773c5..0000000000000000000000000000000000000000
--- a/conversations/conv_017051.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7255-281336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-281336.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-291500.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-281197.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7255-281336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-281336.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 67754
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.404974725115903,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "7514-96429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017061.json b/conversations/conv_017061.json
deleted file mode 100644
index 69b30d336028b63a1c8e526088bb402477375205..0000000000000000000000000000000000000000
--- a/conversations/conv_017061.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2751-142362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142362.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
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-    {
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-      "speaker_id": 2,
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-      "position_frames": 103761
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "2751",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_017066.json b/conversations/conv_017066.json
deleted file mode 100644
index c83016e335ff9d733e5c49370667a43e48b99bb0..0000000000000000000000000000000000000000
--- a/conversations/conv_017066.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2004-147967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147967.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_017070.json b/conversations/conv_017070.json
deleted file mode 100644
index ef12c6aa3ffb8d242383fee850dbf2f7e663e95f..0000000000000000000000000000000000000000
--- a/conversations/conv_017070.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
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-      "utterance_id": "664-129011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
-      "real_speaker_id": "664",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-123172.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_017077.json b/conversations/conv_017077.json
deleted file mode 100644
index 82c3ee3800166b3674c6c051424711317b17b6b4..0000000000000000000000000000000000000000
--- a/conversations/conv_017077.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-73085.flac |",
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-      "real_speaker_id": "1566",
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-      "utterance_id": "1566-133291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-133291.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 110326
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-      "speaker_id": "1566"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017085.json b/conversations/conv_017085.json
deleted file mode 100644
index 2bcadadafbbcb5a7a0a10b484b2854b2ff8d2d24..0000000000000000000000000000000000000000
--- a/conversations/conv_017085.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5350-205002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205002.flac |",
-      "real_speaker_id": "5350",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "5198",
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-      "start_time": 30.86,
-      "speaker_id": "5198"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017089.json b/conversations/conv_017089.json
deleted file mode 100644
index a8e069d85241655f419dc9483aefaf15bb65af0e..0000000000000000000000000000000000000000
--- a/conversations/conv_017089.json
+++ /dev/null
@@ -1,180 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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\ No newline at end of file
diff --git a/conversations/conv_017093.json b/conversations/conv_017093.json
deleted file mode 100644
index b3d520293d873b0b0feb4a72309b98701f7436fe..0000000000000000000000000000000000000000
--- a/conversations/conv_017093.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_017098.json b/conversations/conv_017098.json
deleted file mode 100644
index c2bd790ceafdf0ca1c6adced0c15879bd95efccd..0000000000000000000000000000000000000000
--- a/conversations/conv_017098.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_017103.json b/conversations/conv_017103.json
deleted file mode 100644
index 79ae26c3b921e18f9c1704f33c8a0f722c446519..0000000000000000000000000000000000000000
--- a/conversations/conv_017103.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2769/laugh/0109.wav",
-      "duration": 0.7110098377095415,
-      "start_time": 16.47282621839324,
-      "speaker_id": "2769"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017115.json b/conversations/conv_017115.json
deleted file mode 100644
index 9c7e144feb99ca3d37560b90fdd8b45e12f0a6bb..0000000000000000000000000000000000000000
--- a/conversations/conv_017115.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.484573653931226,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.680366601047047,
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-      "duration_frames": 71111,
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-      "utterance_id": "163-121908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.56232642960535,
-      "end_time": 17.3630780410096,
-      "duration": 6.800751611404252,
-      "start_frame": 168997,
-      "duration_frames": 108812,
-      "overlap": false,
-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 87753
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.72542441858297,
-      "end_time": 22.18681456111235,
-      "duration": 5.4613901425293765,
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-      "duration_frames": 87382,
-      "overlap": true,
-      "utterance_id": "163-122947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-122947.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.291495638684466,
-      "end_time": 28.391809958751885,
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-      "utterance_id": "3699-19402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-19402.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.104616384443617,
-      "end_time": 32.0,
-      "duration": 2.8953836155563835,
-      "start_frame": 465673,
-      "duration_frames": 46326,
-      "overlap": false,
-      "utterance_id": "163-121908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 71111
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 10.910588508565572
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2735/laugh/0043.wav",
-      "duration": 1.56,
-      "start_time": 5.627484538607697,
-      "speaker_id": "2735"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2735/cough/0051.wav",
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-      "speaker_id": "2735"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/163/laugh/0027.wav",
-      "duration": 0.9523669345161929,
-      "start_time": 6.657862946071472,
-      "speaker_id": "163"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.0741441118451702,
-      "start_time": 4.604075574640735,
-      "speaker_id": "163"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/163/laugh/0032.wav",
-      "duration": 0.9011737111280488,
-      "start_time": 22.23158366353013,
-      "speaker_id": "163"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3699/laugh/0086.wav",
-      "duration": 1.16,
-      "start_time": 25.47428681374606,
-      "speaker_id": "3699"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3699/cough/0071.wav",
-      "duration": 0.6152100723377509,
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-      "speaker_id": "3699"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/163/laugh/0050.wav",
-      "duration": 0.5195391807187316,
-      "start_time": 31.48046081928127,
-      "speaker_id": "163"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017118.json b/conversations/conv_017118.json
deleted file mode 100644
index b57b4ff5d119c723a0bca18b591297f0cb4c90bb..0000000000000000000000000000000000000000
--- a/conversations/conv_017118.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.1059807801119605,
-      "end_time": 11.328480152651284,
-      "duration": 6.222499372539324,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122451.flac |",
-      "real_speaker_id": "216",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 74230
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.356849718968068,
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-      "duration": 3.8565214223091457,
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-      "overlap": false,
-      "utterance_id": "122-129752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-129752.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.085505750404522,
-      "end_time": 25.628852257255396,
-      "duration": 5.543346506850876,
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-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 123623
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.921233424820205,
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-      "overlap": false,
-      "utterance_id": "216-122441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122441.flac |",
-      "real_speaker_id": "216",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.51543581872228,
-      "end_time": 32.0,
-      "duration": 1.4845641812777188,
-      "start_frame": 488246,
-      "duration_frames": 23753,
-      "overlap": false,
-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 212316
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
-      "duration": 1.3444076077660965,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8401/laugh/0020.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017119.json b/conversations/conv_017119.json
deleted file mode 100644
index fd8d8368cf770344ac34403802bcf47f3cc97f36..0000000000000000000000000000000000000000
--- a/conversations/conv_017119.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234067.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3090-164191.flac |",
-      "real_speaker_id": "3090",
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-      "segment_id": "seg0002",
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-      "utterance_id": "6497-234100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234100.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 3.706419978059646,
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-      "real_speaker_id": "6497",
-      "position_frames": 84900
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "3090"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017123.json b/conversations/conv_017123.json
deleted file mode 100644
index 1f6358828c8f5964db5557d3f11d0f5933768834..0000000000000000000000000000000000000000
--- a/conversations/conv_017123.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2688-144986",
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-    {
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-  "background_events": [],
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-      "speaker_id": "2688"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017124.json b/conversations/conv_017124.json
deleted file mode 100644
index e0885dec0eebf0f2f0dec87ddbcf3849824b67b0..0000000000000000000000000000000000000000
--- a/conversations/conv_017124.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3564-132498.flac |",
-      "real_speaker_id": "3564",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "922",
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-      "real_speaker_id": "3564",
-      "position_frames": 99372
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "922-132299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132299.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_017132.json b/conversations/conv_017132.json
deleted file mode 100644
index 4c47cb93855e667165a925323a0c2508757b0127..0000000000000000000000000000000000000000
--- a/conversations/conv_017132.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138109.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 97860
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7835",
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\ No newline at end of file
diff --git a/conversations/conv_017135.json b/conversations/conv_017135.json
deleted file mode 100644
index f806e82f55c22b996818694465e39085eaffd8b4..0000000000000000000000000000000000000000
--- a/conversations/conv_017135.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-111962.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_017139.json b/conversations/conv_017139.json
deleted file mode 100644
index 1880e11d4310f8809956b279ef85276e4ec32aa4..0000000000000000000000000000000000000000
--- a/conversations/conv_017139.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1069-133699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1069-133699.flac |",
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-    {
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84333.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 13.978519569736145,
-      "speaker_id": "365"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017142.json b/conversations/conv_017142.json
deleted file mode 100644
index 0dda5c8707722c20c37f5f98a63397143e5c4563..0000000000000000000000000000000000000000
--- a/conversations/conv_017142.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.054608424359007,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-158751.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-7599.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "40-121026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-121026.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.83657221375035,
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-      "duration": 5.920289951378109,
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-      "utterance_id": "3346-158751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-158751.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 97350
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-      "utterance_id": "40-222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_017154.json b/conversations/conv_017154.json
deleted file mode 100644
index 00014332c8b5169a8ce65842eca0443b59897d1b..0000000000000000000000000000000000000000
--- a/conversations/conv_017154.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "264-121332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
-      "position_frames": 49136
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 89877
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 142846
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "4839-15307",
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-  "background_events": [
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017158.json b/conversations/conv_017158.json
deleted file mode 100644
index cf5bca6abd87314b6da041352e2c33f547d784fd..0000000000000000000000000000000000000000
--- a/conversations/conv_017158.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "7199-84008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84008.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/409-124990.flac |",
-      "real_speaker_id": "409",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.61489256327156,
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-      "overlap": false,
-      "utterance_id": "7199-84006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84006.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
-      "real_speaker_id": "614",
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 22.174304413185943,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/409-124990.flac |",
-      "real_speaker_id": "409",
-      "position_frames": 74040
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "614-6500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "Running_water",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/614/cough/0075.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017162.json b/conversations/conv_017162.json
deleted file mode 100644
index 88de0df9fc877f86a0e99fd720c80ef01a779b61..0000000000000000000000000000000000000000
--- a/conversations/conv_017162.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.595318971814585,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_017163.json b/conversations/conv_017163.json
deleted file mode 100644
index 123fcff1e01c1cca219eb663c13127a1a9cd3c30..0000000000000000000000000000000000000000
--- a/conversations/conv_017163.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5054",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_017165.json b/conversations/conv_017165.json
deleted file mode 100644
index 2832d6cc1471a2fbafb04df52371e8c7ff6db9b0..0000000000000000000000000000000000000000
--- a/conversations/conv_017165.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
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-      "speaker_id": "8328"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017173.json b/conversations/conv_017173.json
deleted file mode 100644
index b4757d63a83dacd801a66273fdd44956529aca54..0000000000000000000000000000000000000000
--- a/conversations/conv_017173.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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-      "duration": 0.837891156462585,
-      "start_time": 18.69711262670127
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6276/laugh/0146.wav",
-      "duration": 0.6115387388303636,
-      "start_time": 18.79464731791874,
-      "speaker_id": "6276"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1040/laugh/0073.wav",
-      "duration": 0.9313538370972996,
-      "start_time": 19.20226526327746,
-      "speaker_id": "1040"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017174.json b/conversations/conv_017174.json
deleted file mode 100644
index dcc11e0bb59218d08fd316d7177631ec941beab7..0000000000000000000000000000000000000000
--- a/conversations/conv_017174.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.363211004221361,
-      "duration": 3.363211004221361,
-      "start_frame": 0,
-      "duration_frames": 53811,
-      "overlap": false,
-      "utterance_id": "1898-145702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145702.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.814010969145787,
-      "end_time": 7.578683687712341,
-      "duration": 3.7646727185665543,
-      "start_frame": 61024,
-      "duration_frames": 60234,
-      "overlap": false,
-      "utterance_id": "5860-64970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5860-64970.flac |",
-      "real_speaker_id": "5860",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.215751875135206,
-      "end_time": 14.051857505403284,
-      "duration": 5.836105630268078,
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-      "duration_frames": 93377,
-      "overlap": false,
-      "utterance_id": "3088-5441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5441.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.132868353418415,
-      "end_time": 20.254003196698065,
-      "duration": 5.12113484327965,
-      "start_frame": 242125,
-      "duration_frames": 81938,
-      "overlap": false,
-      "utterance_id": "1898-145715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145715.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.510851759010734,
-      "end_time": 25.985317620422833,
-      "duration": 5.4744658614121,
-      "start_frame": 328173,
-      "duration_frames": 87591,
-      "overlap": false,
-      "utterance_id": "3088-5436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5436.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.156950865921704,
-      "end_time": 32.0,
-      "duration": 5.843049134078296,
-      "start_frame": 418511,
-      "duration_frames": 93488,
-      "overlap": false,
-      "utterance_id": "1898-145720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145720.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "start_time": 6.043976722184995
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
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-      "start_time": 24.543831634518916
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1898/cough/0039.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "1898"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3088/laugh/0107.wav",
-      "duration": 0.5681707206962026,
-      "start_time": 7.50744783839097,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3088/cough/0013.wav",
-      "duration": 1.2,
-      "start_time": 6.9998588696902955,
-      "speaker_id": "3088"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1898/laugh/0093.wav",
-      "duration": 1.2010087002603715,
-      "start_time": 18.419115896335214,
-      "speaker_id": "1898"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1898/cough/0045.wav",
-      "duration": 0.7323841814030889,
-      "start_time": 15.353597173900852,
-      "speaker_id": "1898"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3088/cough/0010.wav",
-      "duration": 0.9841675107755383,
-      "start_time": 19.4393063514203,
-      "speaker_id": "3088"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1898/cough/0096.wav",
-      "duration": 1.0264598883801073,
-      "start_time": 24.989312581854744,
-      "speaker_id": "1898"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017178.json b/conversations/conv_017178.json
deleted file mode 100644
index f4a509c88643785a7fc9f136afe2272d8aa9f815..0000000000000000000000000000000000000000
--- a/conversations/conv_017178.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.169010056646248,
-      "duration": 5.169010056646248,
-      "start_frame": 0,
-      "duration_frames": 82704,
-      "overlap": false,
-      "utterance_id": "6330-62850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62850.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.459728845781366,
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-      "overlap": false,
-      "utterance_id": "3094-136458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.688480912028348,
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-      "overlap": false,
-      "utterance_id": "6330-62851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62851.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.643761658889193,
-      "end_time": 22.36072126650258,
-      "duration": 4.716959607613388,
-      "start_frame": 282300,
-      "duration_frames": 75471,
-      "overlap": false,
-      "utterance_id": "1264-135033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-135033.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.900681879213938,
-      "end_time": 27.919959477935798,
-      "duration": 5.019277598721861,
-      "start_frame": 366410,
-      "duration_frames": 80308,
-      "overlap": false,
-      "utterance_id": "6330-62850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62850.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 82704
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.769686458327335,
-      "end_time": 32.0,
-      "duration": 3.2303135416726647,
-      "start_frame": 460314,
-      "duration_frames": 51685,
-      "overlap": false,
-      "utterance_id": "1264-135033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-135033.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 75471
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_1.wav",
-      "duration": 1.397437641723356,
-      "start_time": 6.832193263175884
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6330/laugh/0001.wav",
-      "duration": 1.24,
-      "start_time": 5.310676787634389,
-      "speaker_id": "6330"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6330/laugh/0005.wav",
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-      "start_time": 16.858735949516262,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1264/laugh/0022.wav",
-      "duration": 1.3,
-      "start_time": 19.130526199619883,
-      "speaker_id": "1264"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017181.json b/conversations/conv_017181.json
deleted file mode 100644
index 3c34639fff30d1c04661150bb5a688703b55012d..0000000000000000000000000000000000000000
--- a/conversations/conv_017181.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.287023921546364,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5727-47030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47030.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7318-96151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
-      "real_speaker_id": "7318",
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-      "utterance_id": "8172-281518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281518.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.192615273064824,
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-      "duration_frames": 86099,
-      "overlap": false,
-      "utterance_id": "5727-47030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47030.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 73150
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.896104413382414,
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-      "overlap": false,
-      "utterance_id": "7318-96168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.248907126042496,
-      "end_time": 31.287023921546364,
-      "duration": 5.038116795503868,
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-      "utterance_id": "8172-281514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281514.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
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-      "speaker_id": "8172"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017197.json b/conversations/conv_017197.json
deleted file mode 100644
index 050b6403259c78733f4a565d2d2b884d55a35fff..0000000000000000000000000000000000000000
--- a/conversations/conv_017197.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3983-5331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.129720060636051,
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-      "utterance_id": "1767-142944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142944.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "52-123202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-123202.flac |",
-      "real_speaker_id": "52",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1767",
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-      "start_time": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_017206.json b/conversations/conv_017206.json
deleted file mode 100644
index 07866e14267055ec1be550d1708d6d9a6accde9e..0000000000000000000000000000000000000000
--- a/conversations/conv_017206.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-397.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-397.flac |",
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-      "real_speaker_id": "5719",
-      "position_frames": 0
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-      "start_time": 15.770594204554616,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233361.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 94323
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.315189716559857,
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-      "overlap": false,
-      "utterance_id": "3513-163607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-163607.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.9633726293724,
-      "end_time": 32.0,
-      "duration": 3.036627370627599,
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-      "duration_frames": 48586,
-      "overlap": false,
-      "utterance_id": "6555-398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "duration": 1.24,
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "start_time": 12.19959303149528,
-      "speaker_id": "5719"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017210.json b/conversations/conv_017210.json
deleted file mode 100644
index 3ed141cf22f2e86717a958efb65c694c940a0a15..0000000000000000000000000000000000000000
--- a/conversations/conv_017210.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.12350045554849,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32639.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "start_time": 5.448474524834291,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-249866.flac |",
-      "real_speaker_id": "8631",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 101830
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32658.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
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-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 191296
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "speaker_id": "7367"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017221.json b/conversations/conv_017221.json
deleted file mode 100644
index 4da47b2172e74ee1f30e835426040736e8ca2cca..0000000000000000000000000000000000000000
--- a/conversations/conv_017221.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.682822607365487,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.449376200494087,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4344-53906.flac |",
-      "real_speaker_id": "4344",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4344-53906.flac |",
-      "real_speaker_id": "4344",
-      "position_frames": 60076
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "4549",
-      "position_frames": 0
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-    {
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-      "overlap": true,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 71431
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_11.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/876/laugh/0071.wav",
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-      "start_time": 26.789247424139766,
-      "speaker_id": "876"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017226.json b/conversations/conv_017226.json
deleted file mode 100644
index 948ad339e6d2b0d6a67e6f2a4b5901cca836f9c2..0000000000000000000000000000000000000000
--- a/conversations/conv_017226.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3482-170452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3482-170452.flac |",
-      "real_speaker_id": "3482",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
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-    {
-      "segment_id": "seg0002",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3482-170452.flac |",
-      "real_speaker_id": "3482",
-      "position_frames": 94647
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-132753.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-      "duration": 1.0,
-      "start_time": 29.160309271098967,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8058/laugh/0057.wav",
-      "duration": 1.28,
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-      "speaker_id": "8058"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017230.json b/conversations/conv_017230.json
deleted file mode 100644
index c7fa6b880d2f28f7803a31269aa82036018432e8..0000000000000000000000000000000000000000
--- a/conversations/conv_017230.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3244-10691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10691.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.053672052414573,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-19198.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
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-      "start_time": 14.171734395385181,
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-      "utterance_id": "3244-174926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-174926.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.3687629427416,
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-      "utterance_id": "1463-134463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134463.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.803484869639124,
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-      "utterance_id": "3244-10691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10691.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 90360
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.229993072831743,
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017231.json b/conversations/conv_017231.json
deleted file mode 100644
index 98a5265ad9e5b31a070f62669e6d296cc09f0b5c..0000000000000000000000000000000000000000
--- a/conversations/conv_017231.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.756355546487473,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1743-142914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142914.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
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-      "real_speaker_id": "7026",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5408.flac |",
-      "real_speaker_id": "3098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.47465582345948,
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-      "utterance_id": "7026-86943",
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-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.074304633391584,
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-      "utterance_id": "3098-5407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5407.flac |",
-      "real_speaker_id": "3098",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1743-142913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142913.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1743/laugh/0085.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "3098"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017247.json b/conversations/conv_017247.json
deleted file mode 100644
index fe69e4cd49ca4bd278a086ccaa34fff083c02bf1..0000000000000000000000000000000000000000
--- a/conversations/conv_017247.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "5489-10988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-10988.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156745.flac |",
-      "real_speaker_id": "2691",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5489-65803",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-65803.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "2481",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2691",
-      "position_frames": 72065
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5489-10988",
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-      "real_speaker_id": "5489",
-      "position_frames": 88904
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5489/laugh/0034.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5489/cough/0055.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017251.json b/conversations/conv_017251.json
deleted file mode 100644
index c922d82757f2d2379de5b89fb77228ae0d757bf6..0000000000000000000000000000000000000000
--- a/conversations/conv_017251.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1646-121408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121408.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_017266.json b/conversations/conv_017266.json
deleted file mode 100644
index 7409929cc84335f3e1d80f3ce7bdd278aaa0fac5..0000000000000000000000000000000000000000
--- a/conversations/conv_017266.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
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-      "position_frames": 142618
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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\ No newline at end of file
diff --git a/conversations/conv_017267.json b/conversations/conv_017267.json
deleted file mode 100644
index 83b666a251575583b77753e2a2fdc869e73d1513..0000000000000000000000000000000000000000
--- a/conversations/conv_017267.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_017271.json b/conversations/conv_017271.json
deleted file mode 100644
index 19a7fd59401d0ab3a3f3299e3b26467f58fe2c19..0000000000000000000000000000000000000000
--- a/conversations/conv_017271.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-129752.flac |",
-      "real_speaker_id": "122",
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-      "segment_id": "seg0001",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_017284.json b/conversations/conv_017284.json
deleted file mode 100644
index 60dec107255790d780e182e1ec1f43345f820318..0000000000000000000000000000000000000000
--- a/conversations/conv_017284.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-90848.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 84173
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.160646789520783,
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-      "duration": 4.839353210479217,
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-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 203070
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_9.wav",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6323/laugh/0000.wav",
-      "duration": 0.9778129751982327,
-      "start_time": 20.32749009782175,
-      "speaker_id": "6323"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7402/laugh/0002.wav",
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-      "speaker_id": "7402"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_017288.json b/conversations/conv_017288.json
deleted file mode 100644
index 39f4740af5359e9cf1b25cf9e925aa100d82fced..0000000000000000000000000000000000000000
--- a/conversations/conv_017288.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.343365777140967,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3747-173589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/38-121024.flac |",
-      "real_speaker_id": "38",
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-      "speaker_id": 0,
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-      "utterance_id": "3747-173589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
-      "position_frames": 95055
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/38-121024.flac |",
-      "real_speaker_id": "38",
-      "position_frames": 71843
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.199413637306655,
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-      "duration": 3.187662651009716,
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-      "overlap": false,
-      "utterance_id": "3747-173589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
-      "position_frames": 181729
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.892984115860838,
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-      "start_frame": 414287,
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-      "overlap": true,
-      "utterance_id": "38-121024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/38-121024.flac |",
-      "real_speaker_id": "38",
-      "position_frames": 155102
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3747/laugh/0038.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "38"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017292.json b/conversations/conv_017292.json
deleted file mode 100644
index 760f7f3d8e27fa490ec4853db36b94c84ced966c..0000000000000000000000000000000000000000
--- a/conversations/conv_017292.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "2254-152824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152824.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133247.flac |",
-      "real_speaker_id": "1342",
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-      "utterance_id": "1342-130497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-130497.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
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-      "utterance_id": "2254-152824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152824.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 56017
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6918-47541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.974699646881678,
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-      "duration": 3.025300353118322,
-      "start_frame": 463595,
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-      "overlap": false,
-      "utterance_id": "1342-133247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133247.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 96291
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_1.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2254/laugh/0070.wav",
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-      "start_time": 3.6790063067217007,
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-      "event_class": "cough",
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-      "speaker_id": "1342"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "2254"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017302.json b/conversations/conv_017302.json
deleted file mode 100644
index 26db741b39d8f303122eef0d8b833248dc30298e..0000000000000000000000000000000000000000
--- a/conversations/conv_017302.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.693040374885463,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.435801129666926,
-      "duration": 4.435801129666926,
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-      "overlap": false,
-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.620866157662143,
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-      "utterance_id": "3912-3831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-3831.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1096-128267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-128267.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3912-82271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-82271.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.73472993782587,
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-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 70972
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.574481630722495,
-      "end_time": 30.996136065957966,
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-      "utterance_id": "1096-17320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-17320.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.059020582664772,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-128267.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 61464
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8684/cough/0021.wav",
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-      "start_time": 0.16344744809873354,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3912/laugh/0109.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3912/laugh/0056.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8684/cough/0071.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1096/laugh/0056.wav",
-      "duration": 0.7772579262174402,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1096/laugh/0031.wav",
-      "duration": 1.16,
-      "start_time": 29.67780085738139,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "1096"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017309.json b/conversations/conv_017309.json
deleted file mode 100644
index b51f98b302cde25e27e581218128f8c6dea28bd3..0000000000000000000000000000000000000000
--- a/conversations/conv_017309.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_017314.json b/conversations/conv_017314.json
deleted file mode 100644
index b5abb1099f018c46f8d57b02ec4c7146ed31e837..0000000000000000000000000000000000000000
--- a/conversations/conv_017314.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_017318.json b/conversations/conv_017318.json
deleted file mode 100644
index 6966817e3e8bf0cca7bad04be5b8fe09c0f3d18b..0000000000000000000000000000000000000000
--- a/conversations/conv_017318.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_017322.json b/conversations/conv_017322.json
deleted file mode 100644
index 234391e60b370719411073dfc0da7a05228cb3e7..0000000000000000000000000000000000000000
--- a/conversations/conv_017322.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5185/cough/0086.wav",
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-      "start_time": 10.952039475749213,
-      "speaker_id": "5185"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/62/laugh/0062.wav",
-      "duration": 0.6984803702740652,
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-      "speaker_id": "62"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/62/cough/0047.wav",
-      "duration": 0.9446754729897462,
-      "start_time": 29.912103477242088,
-      "speaker_id": "62"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017334.json b/conversations/conv_017334.json
deleted file mode 100644
index f7a292fb1f3b00500f625d12d0bc0e1c9ab6177c..0000000000000000000000000000000000000000
--- a/conversations/conv_017334.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.807027801408702,
-      "duration": 4.807027801408702,
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-      "overlap": false,
-      "utterance_id": "6488-66121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66121.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.2551108562167315,
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-      "duration": 3.091845543113049,
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-      "duration_frames": 49469,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134196.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 9.066122404078746,
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-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 14.840646988486046,
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-      "duration": 3.9462435218123018,
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-      "overlap": false,
-      "utterance_id": "6488-66120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66120.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.320235682139423,
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-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 84831
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.89337084043187,
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-      "start_frame": 398293,
-      "duration_frames": 78449,
-      "overlap": false,
-      "utterance_id": "6488-66121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66121.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 76912
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.442921750138396,
-      "end_time": 32.0,
-      "duration": 1.557078249861604,
-      "start_frame": 487086,
-      "duration_frames": 24913,
-      "overlap": false,
-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 171540
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 11.392431051238523,
-      "start_time": 6.821358224323123
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_11.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6488/laugh/0016.wav",
-      "duration": 0.7622313041665651,
-      "start_time": 3.2027905815649174,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6488/cough/0095.wav",
-      "duration": 0.9402181851168361,
-      "start_time": 0,
-      "speaker_id": "6488"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6358/cough/0019.wav",
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-      "event_class": "laugh",
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-      "start_time": 16.803431247083054,
-      "speaker_id": "6488"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017338.json b/conversations/conv_017338.json
deleted file mode 100644
index f64979a9e9d8237207a383ecaa7a0f8aeca0d4a7..0000000000000000000000000000000000000000
--- a/conversations/conv_017338.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.541960570367236,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 107081
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.346634205369856,
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-      "overlap": false,
-      "utterance_id": "2416-152137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 94072
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.905149590629033,
-      "end_time": 27.01097673831046,
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-      "duration_frames": 49693,
-      "overlap": false,
-      "utterance_id": "3088-5438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5438.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.047242111903543,
-      "end_time": 32.0,
-      "duration": 3.952757888096457,
-      "start_frame": 448755,
-      "duration_frames": 63244,
-      "overlap": false,
-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 182437
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_7.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2416/laugh/0092.wav",
-      "duration": 1.44,
-      "start_time": 6.094216969934108,
-      "speaker_id": "2416"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3053/laugh/0064.wav",
-      "duration": 1.2,
-      "start_time": 30.482404302571656,
-      "speaker_id": "3053"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3053/cough/0096.wav",
-      "duration": 0.5521855635903236,
-      "start_time": 28.38656062901601,
-      "speaker_id": "3053"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017343.json b/conversations/conv_017343.json
deleted file mode 100644
index c126a737ace1b26ba6a0a3babd6b3b013bc836f6..0000000000000000000000000000000000000000
--- a/conversations/conv_017343.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration_frames": 67403,
-      "overlap": false,
-      "utterance_id": "887-123289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123289.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-      "utterance_id": "887-123290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123290.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.007250319774213,
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-      "duration_frames": 74543,
-      "overlap": true,
-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 81105
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123290.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 54305
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.82532391882676,
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-      "overlap": false,
-      "utterance_id": "2404-141240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2404-141240.flac |",
-      "real_speaker_id": "2404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "887-123290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123290.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 123368
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/887/laugh/0005.wav",
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-      "start_time": 2.713967970832166,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 3.563780967850034,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/887/laugh/0036.wav",
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-      "start_time": 23.033153737366856,
-      "speaker_id": "887"
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-    {
-      "event_class": "cough",
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-      "duration": 0.8935487840566503,
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-      "speaker_id": "887"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2404/laugh/0061.wav",
-      "duration": 1.06,
-      "start_time": 30.1649965051372,
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-    {
-      "event_class": "cough",
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-      "duration": 1.1937080107420912,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017348.json b/conversations/conv_017348.json
deleted file mode 100644
index deb1d45e115475a149fe662dc433986ffe3ad495..0000000000000000000000000000000000000000
--- a/conversations/conv_017348.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "5062-294700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294700.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294700.flac |",
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-      "real_speaker_id": "608",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "start_time": 26.39258649127377,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123155.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6153-62535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-62535.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_017355.json b/conversations/conv_017355.json
deleted file mode 100644
index 9378ccb50494254075e2add6a2ee757b877a2bcf..0000000000000000000000000000000000000000
--- a/conversations/conv_017355.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6788-96241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-96241.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-148989.flac |",
-      "real_speaker_id": "1737",
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-      "segment_id": "seg0005",
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-      "utterance_id": "6788-96241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-96241.flac |",
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-      "position_frames": 62868
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\ No newline at end of file
diff --git a/conversations/conv_017359.json b/conversations/conv_017359.json
deleted file mode 100644
index b0544f9af745a999720742312dcd00361a111cd2..0000000000000000000000000000000000000000
--- a/conversations/conv_017359.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-      "segment_id": "seg0004",
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-      "utterance_id": "927-132462",
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\ No newline at end of file
diff --git a/conversations/conv_017363.json b/conversations/conv_017363.json
deleted file mode 100644
index 48e98df416ee8ca202bfbb59116a01e0dfc43d2f..0000000000000000000000000000000000000000
--- a/conversations/conv_017363.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "173",
-      "position_frames": 0
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-      "start_time": 25.912059179175163,
-      "speaker_id": "7265"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017364.json b/conversations/conv_017364.json
deleted file mode 100644
index 3d667df4f950507d5df976583b8fcbe0cfc25c3a..0000000000000000000000000000000000000000
--- a/conversations/conv_017364.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 4.181139632988365,
-      "start_frame": 0,
-      "duration_frames": 66898,
-      "overlap": false,
-      "utterance_id": "7436-97461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97461.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.3651869984609295,
-      "end_time": 10.105841442321505,
-      "duration": 5.740654443860575,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3549-171171.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "7436-97461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97461.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 66898
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3549-171171.flac |",
-      "real_speaker_id": "3549",
-      "position_frames": 91850
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-    {
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-      "speaker_id": 0,
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-      "duration_frames": 76861,
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-      "utterance_id": "7436-97462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97462.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.93365481298968,
-      "end_time": 32.0,
-      "duration": 5.06634518701032,
-      "start_frame": 430938,
-      "duration_frames": 81061,
-      "overlap": false,
-      "utterance_id": "3549-171171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3549-171171.flac |",
-      "real_speaker_id": "3549",
-      "position_frames": 192489
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
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-      "duration": 1.52,
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-      "speaker_id": "7436"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017374.json b/conversations/conv_017374.json
deleted file mode 100644
index a079514aaf58b761af5cc353115b4a04f0947c32..0000000000000000000000000000000000000000
--- a/conversations/conv_017374.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
-      "real_speaker_id": "497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 97850
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "5910-53143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53143.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.89957045271847,
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-      "utterance_id": "1827-143625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 167033
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
-      "duration": 0.6683219954648526,
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-  "paralinguistic_events": [
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-    {
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-    {
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-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "5910"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017375.json b/conversations/conv_017375.json
deleted file mode 100644
index fbab60dded6a1df0eba8696d077109063733432e..0000000000000000000000000000000000000000
--- a/conversations/conv_017375.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.470787817234672,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-93938.flac |",
-      "real_speaker_id": "6454",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "1987",
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017379.json b/conversations/conv_017379.json
deleted file mode 100644
index d49541f80d63c34736d6894d35140ac7b6c25319..0000000000000000000000000000000000000000
--- a/conversations/conv_017379.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3411-187012.flac |",
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-      "position_frames": 0
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-      "event_class": "laugh",
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-      "start_time": 24.420007251772244,
-      "speaker_id": "1878"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017380.json b/conversations/conv_017380.json
deleted file mode 100644
index 396ab351ee4ad5f58fae680eb79dbf1da6b99251..0000000000000000000000000000000000000000
--- a/conversations/conv_017380.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7423-89169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89169.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.2027067471626625,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122876.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89169.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 61493
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122876.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 59882
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.13657536657159,
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-      "utterance_id": "698-123197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-123197.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.89078896738927,
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-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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\ No newline at end of file
diff --git a/conversations/conv_017396.json b/conversations/conv_017396.json
deleted file mode 100644
index a2bda72e635c7647e0ddbea55083bbba851fe1ca..0000000000000000000000000000000000000000
--- a/conversations/conv_017396.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1556-143307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-143307.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-143307.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 76459
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8228-232690.flac |",
-      "real_speaker_id": "8228",
-      "position_frames": 74990
-    },
-    {
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-      "utterance_id": "4660-25046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25046.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.206248902943106,
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-      "duration": 0.7937510970568944,
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-      "utterance_id": "1556-143307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-143307.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 164452
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "1556"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017400.json b/conversations/conv_017400.json
deleted file mode 100644
index ceac5608d69f1e58fe9e0c19d7a5215e1509734a..0000000000000000000000000000000000000000
--- a/conversations/conv_017400.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.543024193069353,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "792-127528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/792-127528.flac |",
-      "real_speaker_id": "792",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "8430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.65256954612868,
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-      "speaker_id": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_017416.json b/conversations/conv_017416.json
deleted file mode 100644
index 516c99d926eeab73b61eb5c288981156dcaf471e..0000000000000000000000000000000000000000
--- a/conversations/conv_017416.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.9333192695689,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-275212.flac |",
-      "real_speaker_id": "8388",
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-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-      "overlap": false,
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-      "real_speaker_id": "742",
-      "position_frames": 129242
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-  "foreground_events": [
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-      "speaker_id": "8388"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017420.json b/conversations/conv_017420.json
deleted file mode 100644
index 54762064271258a0620b1238def5a78ca12a4996..0000000000000000000000000000000000000000
--- a/conversations/conv_017420.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130727.flac |",
-      "real_speaker_id": "830",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-12707.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130728.flac |",
-      "real_speaker_id": "830",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-185488.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1638-84448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84448.flac |",
-      "real_speaker_id": "1638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.350153066064145,
-      "end_time": 32.0,
-      "duration": 3.649846933935855,
-      "start_frame": 453602,
-      "duration_frames": 58397,
-      "overlap": false,
-      "utterance_id": "1638-84448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84448.flac |",
-      "real_speaker_id": "1638",
-      "position_frames": 81300
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017427.json b/conversations/conv_017427.json
deleted file mode 100644
index 85aacb4138145ae1d6cbca0ba72e2131fe4622f5..0000000000000000000000000000000000000000
--- a/conversations/conv_017427.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.73129607423983,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "utterance_id": "4217-9955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9955.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-75922.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9955.flac |",
-      "real_speaker_id": "4217",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-37119.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.290687633916352,
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-      "utterance_id": "2740-162051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.713815726097103,
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-      "utterance_id": "4484-75922",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-75922.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 51918
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
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-      "duration": 1.68,
-      "start_time": 7.621081384221983,
-      "speaker_id": "4217"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4484/laugh/0014.wav",
-      "duration": 0.9908462260695381,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017431.json b/conversations/conv_017431.json
deleted file mode 100644
index c311707cd47d8e26cebbd8f15283d02413c630b9..0000000000000000000000000000000000000000
--- a/conversations/conv_017431.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "587-41611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41611.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41611.flac |",
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-      "position_frames": 66118
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41619.flac |",
-      "real_speaker_id": "587",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7683",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "6121",
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 143923
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017436.json b/conversations/conv_017436.json
deleted file mode 100644
index aeb95e9029a0a080d8f55d8147b93b03753da4d6..0000000000000000000000000000000000000000
--- a/conversations/conv_017436.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
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-    {
-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_017441.json b/conversations/conv_017441.json
deleted file mode 100644
index 21bb64dc421b95c2ba8806465bd67f34b1a7f280..0000000000000000000000000000000000000000
--- a/conversations/conv_017441.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_017457.json b/conversations/conv_017457.json
deleted file mode 100644
index 002601715efe3f651f1dbf798612eef5095a24b3..0000000000000000000000000000000000000000
--- a/conversations/conv_017457.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_017461.json b/conversations/conv_017461.json
deleted file mode 100644
index 9251dd84a2db2ea98afc36dec9a2d4a19511b59f..0000000000000000000000000000000000000000
--- a/conversations/conv_017461.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4218",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017466.json b/conversations/conv_017466.json
deleted file mode 100644
index dc5edc6c00bce59815026366775e921be8d57bcf..0000000000000000000000000000000000000000
--- a/conversations/conv_017466.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65529.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_017470.json b/conversations/conv_017470.json
deleted file mode 100644
index acf517e5436a396e9cb41cf1aee66980a68fc037..0000000000000000000000000000000000000000
--- a/conversations/conv_017470.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "3864-185126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185126.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 0
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-      "start_time": 6.387256137382864,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185126.flac |",
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-      "position_frames": 186057
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-      "segment_id": "seg0005",
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-      "utterance_id": "3328-168638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-168638.flac |",
-      "real_speaker_id": "3328",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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\ No newline at end of file
diff --git a/conversations/conv_017476.json b/conversations/conv_017476.json
deleted file mode 100644
index 8497865e9a47b2c5b81a5bac2a2b02994c0dffc1..0000000000000000000000000000000000000000
--- a/conversations/conv_017476.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61949.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 0
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_017477.json b/conversations/conv_017477.json
deleted file mode 100644
index 9fdab843ca28695e584622e4a57ac3f83615d067..0000000000000000000000000000000000000000
--- a/conversations/conv_017477.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.75302238307092,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-289242.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_017482.json b/conversations/conv_017482.json
deleted file mode 100644
index 111d473cd7b626066668e5b112c515b1b3d15738..0000000000000000000000000000000000000000
--- a/conversations/conv_017482.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.268808878605718,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-148296.flac |",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_017489.json b/conversations/conv_017489.json
deleted file mode 100644
index 55f7dbd9d15deafab6981c18af1c3836ffbab3c1..0000000000000000000000000000000000000000
--- a/conversations/conv_017489.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6686-216563.flac |",
-      "real_speaker_id": "6686",
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\ No newline at end of file
diff --git a/conversations/conv_017494.json b/conversations/conv_017494.json
deleted file mode 100644
index 934ef3b060d020c355fc858aa68cf1f5d2e55ce9..0000000000000000000000000000000000000000
--- a/conversations/conv_017494.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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-    {
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-      "real_speaker_id": "123",
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-      "position_frames": 76822
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_017498.json b/conversations/conv_017498.json
deleted file mode 100644
index de336ff1204cf96a1f2048ef390f546baf8067a9..0000000000000000000000000000000000000000
--- a/conversations/conv_017498.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.601284491942852,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "segment_id": "seg0002",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "1390"
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-      "event_class": "cough",
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-      "duration": 0.40013770213644895,
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-      "speaker_id": "1390"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5337/cough/0050.wav",
-      "duration": 0.6814587234569485,
-      "start_time": 25.961064341770292,
-      "speaker_id": "5337"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017499.json b/conversations/conv_017499.json
deleted file mode 100644
index 1bfbb75d38653489ccdb4b7fe1af2356e1e716dd..0000000000000000000000000000000000000000
--- a/conversations/conv_017499.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.402281192936073,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.549598780449599,
-      "duration": 4.549598780449599,
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-      "overlap": false,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.15214063204816,
-      "end_time": 7.351182686326509,
-      "duration": 3.1990420542783493,
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-      "utterance_id": "1258-135063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135063.flac |",
-      "real_speaker_id": "1258",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 8.323607765168074,
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-      "overlap": false,
-      "utterance_id": "1258-135062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135062.flac |",
-      "real_speaker_id": "1258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.610594765299076,
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-      "overlap": false,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 72793
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.894139217104808,
-      "end_time": 25.739781505248278,
-      "duration": 6.845642288143469,
-      "start_frame": 302306,
-      "duration_frames": 109530,
-      "overlap": false,
-      "utterance_id": "1258-135063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135063.flac |",
-      "real_speaker_id": "1258",
-      "position_frames": 51184
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.922620683141826,
-      "end_time": 30.402281192936073,
-      "duration": 4.479660509794249,
-      "start_frame": 414761,
-      "duration_frames": 71674,
-      "overlap": true,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 151384
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.48,
-      "start_time": 9.838672915265628,
-      "speaker_id": "1258"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6853/laugh/0071.wav",
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-      "speaker_id": "1258"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017504.json b/conversations/conv_017504.json
deleted file mode 100644
index 0b74e2689951f8a7bca8e645306eae144b28ebf3..0000000000000000000000000000000000000000
--- a/conversations/conv_017504.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2787-157400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2787-157400.flac |",
-      "real_speaker_id": "2787",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-104986.flac |",
-      "real_speaker_id": "7967",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.2992777263097,
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-      "utterance_id": "2787-157400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2787-157400.flac |",
-      "real_speaker_id": "2787",
-      "position_frames": 62931
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.214595653619742,
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-      "overlap": false,
-      "utterance_id": "2787-157400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2787-157400.flac |",
-      "real_speaker_id": "2787",
-      "position_frames": 154338
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.669696098459884,
-      "end_time": 32.0,
-      "duration": 3.330303901540116,
-      "start_frame": 458715,
-      "duration_frames": 53284,
-      "overlap": false,
-      "utterance_id": "7134-67233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 85203
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2787/laugh/0071.wav",
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-      "start_time": 0,
-      "speaker_id": "2787"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2787/laugh/0002.wav",
-      "duration": 1.36,
-      "start_time": 27.75117134080696,
-      "speaker_id": "2787"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2787/cough/0065.wav",
-      "duration": 0.46898942645612385,
-      "start_time": 20.7346680229522,
-      "speaker_id": "2787"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017508.json b/conversations/conv_017508.json
deleted file mode 100644
index 5d56e2d96ae4c94749f7b0101977745458494b8b..0000000000000000000000000000000000000000
--- a/conversations/conv_017508.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.687518272258661,
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-      "duration_frames": 83405,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 74445
-    },
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-      "segment_id": "seg0002",
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-      "utterance_id": "593-126928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126928.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.510743254228053,
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-      "duration": 4.969825239296365,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 157850
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.193447693595107,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.072018284655446,
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-      "duration_frames": 59889,
-      "overlap": true,
-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 237367
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.036571013307995,
-      "end_time": 32.0,
-      "duration": 1.963428986692005,
-      "start_frame": 480585,
-      "duration_frames": 31414,
-      "overlap": false,
-      "utterance_id": "593-126928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126928.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 48957
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/593/laugh/0059.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/328/laugh/0048.wav",
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-      "start_time": 13.387783832026871,
-      "speaker_id": "328"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/328/laugh/0056.wav",
-      "duration": 1.2,
-      "start_time": 25.842987387583854,
-      "speaker_id": "328"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/593/laugh/0043.wav",
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-      "start_time": 28.273671065521338,
-      "speaker_id": "593"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017512.json b/conversations/conv_017512.json
deleted file mode 100644
index 077c733cb9e013d887844a30c0fe4c9f5c2e0ad8..0000000000000000000000000000000000000000
--- a/conversations/conv_017512.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7229-80665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80665.flac |",
-      "real_speaker_id": "7229",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "778",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7229-80656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80656.flac |",
-      "real_speaker_id": "7229",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.986286392802757,
-      "end_time": 32.0,
-      "duration": 3.013713607197243,
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-      "utterance_id": "4225-144132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 65348
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 4.316141734726868,
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/778/laugh/0001.wav",
-      "duration": 0.8792299823678722,
-      "start_time": 10.467114678280756,
-      "speaker_id": "778"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7229/laugh/0053.wav",
-      "duration": 1.08,
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-      "speaker_id": "7229"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_017523.json b/conversations/conv_017523.json
deleted file mode 100644
index e50743bdce8cdd1e0a569389ea3c3902db261372..0000000000000000000000000000000000000000
--- a/conversations/conv_017523.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.116767114053953,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.723108428853444,
-      "duration": 4.723108428853444,
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-      "overlap": false,
-      "utterance_id": "1603-140931",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-140931.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.4801244368531545,
-      "end_time": 9.342351478300818,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
-      "real_speaker_id": "7125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.976788521003371,
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-      "utterance_id": "5379-44344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-44344.flac |",
-      "real_speaker_id": "5379",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.742652593082795,
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-      "utterance_id": "1603-141713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-141713.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.323984286686063,
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-      "utterance_id": "7125-87278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
-      "real_speaker_id": "7125",
-      "position_frames": 61795
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.469521983714962,
-      "end_time": 31.116767114053953,
-      "duration": 3.6472451303389906,
-      "start_frame": 439512,
-      "duration_frames": 58355,
-      "overlap": false,
-      "utterance_id": "1603-139324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139324.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1603/cough/0030.wav",
-      "duration": 0.5586940011323679,
-      "start_time": 0,
-      "speaker_id": "1603"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7125/laugh/0038.wav",
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-    {
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-      "speaker_id": "7125"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5379/cough/0113.wav",
-      "duration": 0.5989588567216082,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7125/laugh/0004.wav",
-      "duration": 1.7807874400147052,
-      "start_time": 26.802503736685416,
-      "speaker_id": "7125"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017524.json b/conversations/conv_017524.json
deleted file mode 100644
index f7243f26da2ae7f113dbcfba33d0b994a251fe97..0000000000000000000000000000000000000000
--- a/conversations/conv_017524.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.305004060980121,
-      "duration": 3.305004060980121,
-      "start_frame": 0,
-      "duration_frames": 52880,
-      "overlap": false,
-      "utterance_id": "4057-183239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-183239.flac |",
-      "real_speaker_id": "4057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.06340016156589,
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-      "overlap": false,
-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 82798
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.780166858851615,
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-      "duration_frames": 90691,
-      "overlap": false,
-      "utterance_id": "4122-11963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4122-11963.flac |",
-      "real_speaker_id": "4122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.997188659644202,
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-      "duration_frames": 104150,
-      "overlap": false,
-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 160221
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.390443496316614,
-      "end_time": 32.0,
-      "duration": 2.609556503683386,
-      "start_frame": 470247,
-      "duration_frames": 41752,
-      "overlap": false,
-      "utterance_id": "4057-11254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-11254.flac |",
-      "real_speaker_id": "4057",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
-      "start_time": 18.355291779574372
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Cat",
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-      "duration": 0.837891156462585,
-      "start_time": 8.96029319176436
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4057/cough/0057.wav",
-      "duration": 1.4723807744412025,
-      "start_time": 1.3810956069677132,
-      "speaker_id": "4057"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7316/laugh/0053.wav",
-      "duration": 0.5420223440440994,
-      "start_time": 9.588711305531607,
-      "speaker_id": "7316"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7316/cough/0076.wav",
-      "duration": 0.5815396548245932,
-      "start_time": 9.68255568579029,
-      "speaker_id": "7316"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7316/cough/0005.wav",
-      "duration": 1.1520557932878506,
-      "start_time": 28.513587469843014,
-      "speaker_id": "7316"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017528.json b/conversations/conv_017528.json
deleted file mode 100644
index 26c5f7b2e5ce2f14dd92c3182fdda6e7e9714ba1..0000000000000000000000000000000000000000
--- a/conversations/conv_017528.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.7415116270927,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "duration": 3.6115107513443467,
-      "start_frame": 0,
-      "duration_frames": 57784,
-      "overlap": false,
-      "utterance_id": "1664-122623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": false,
-      "utterance_id": "5671-50454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.11412046169178,
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-      "start_frame": 145825,
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-      "overlap": false,
-      "utterance_id": "1664-122623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 57784
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.97313322442077,
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-      "overlap": true,
-      "utterance_id": "5671-50486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50486.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.768322532604728,
-      "end_time": 27.867471152962132,
-      "duration": 5.099148620357406,
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-      "utterance_id": "5181-2490",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2490.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.15979372821974,
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-      "duration": 3.5817178988729594,
-      "start_frame": 450556,
-      "duration_frames": 57307,
-      "overlap": true,
-      "utterance_id": "1664-137600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
-      "start_time": 0.410177553997877
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_6.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1664/laugh/0018.wav",
-      "duration": 0.88,
-      "start_time": 1.6759552106533113,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1664/laugh/0016.wav",
-      "duration": 1.38,
-      "start_time": 16.12366341242611,
-      "speaker_id": "1664"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1664/cough/0140.wav",
-      "duration": 0.78,
-      "start_time": 16.044012590688723,
-      "speaker_id": "1664"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5181/cough/0022.wav",
-      "duration": 1.1,
-      "start_time": 27.96524904209884,
-      "speaker_id": "5181"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017532.json b/conversations/conv_017532.json
deleted file mode 100644
index feca1f0d3a0c7e94bbc97a2aed93a99f8de56ab2..0000000000000000000000000000000000000000
--- a/conversations/conv_017532.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.728802313341518,
-      "duration": 5.728802313341518,
-      "start_frame": 0,
-      "duration_frames": 91660,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-80029.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-75816.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4196-23901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23901.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "event_class": "Cat",
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-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 28.650415143845326,
-      "speaker_id": "4196"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017535.json b/conversations/conv_017535.json
deleted file mode 100644
index 053124c8d36c0096dc9f54696fdb8a2364f10c3e..0000000000000000000000000000000000000000
--- a/conversations/conv_017535.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 107114,
-      "overlap": false,
-      "utterance_id": "6882-79969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-79969.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.02720394192403,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126312.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-79969.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 107114
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126319.flac |",
-      "real_speaker_id": "561",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.283317054524456,
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-      "utterance_id": "6882-79975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-79975.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.97975423130332,
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-      "utterance_id": "561-126319",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126319.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 75152
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_017545.json b/conversations/conv_017545.json
deleted file mode 100644
index 73ca90a5369ca065329b01d84dd486a70d7d6885..0000000000000000000000000000000000000000
--- a/conversations/conv_017545.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59234.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59239.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79287.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 95111
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-133630.flac |",
-      "real_speaker_id": "359",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "359"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017548.json b/conversations/conv_017548.json
deleted file mode 100644
index 7fb21c249c52359184162eca01955713cc466f6c..0000000000000000000000000000000000000000
--- a/conversations/conv_017548.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-  "foreground_events": [
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-      "duration": 1.26,
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-      "speaker_id": "7997"
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-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 13.32585209915888,
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-      "duration": 1.28,
-      "start_time": 25.85954836546551,
-      "speaker_id": "404"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017549.json b/conversations/conv_017549.json
deleted file mode 100644
index 471b61217425597f61eaa3404f90b1af4030245c..0000000000000000000000000000000000000000
--- a/conversations/conv_017549.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "4480-8371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-8371.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220952.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-8371.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 72119
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.707483666510278,
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-      "utterance_id": "4734-220952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220952.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 70843
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.959889472426433,
-      "end_time": 32.0,
-      "duration": 4.040110527573567,
-      "start_frame": 447358,
-      "duration_frames": 64641,
-      "overlap": false,
-      "utterance_id": "4480-44312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-      "speaker_id": "4480"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017553.json b/conversations/conv_017553.json
deleted file mode 100644
index 073415c6c2e5533ca6a1d91114e41762f750d3eb..0000000000000000000000000000000000000000
--- a/conversations/conv_017553.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 89197
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4063-186231.flac |",
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-      "position_frames": 93021
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 169247
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 0.9516961656247034,
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-      "utterance_id": "6506-73020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-73020.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017562.json b/conversations/conv_017562.json
deleted file mode 100644
index 460d2a09d1de87c9333fb431d4bc0a59fd8d149a..0000000000000000000000000000000000000000
--- a/conversations/conv_017562.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.551105917001273,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
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-      "position_frames": 70784
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-    {
-      "segment_id": "seg0005",
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_017565.json b/conversations/conv_017565.json
deleted file mode 100644
index 6788ddd29fc7c406cc20c19c92b616a8a09c5656..0000000000000000000000000000000000000000
--- a/conversations/conv_017565.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-142358.flac |",
-      "real_speaker_id": "1061",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-      "start_time": 5.107185929349635,
-      "speaker_id": "39"
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-      "event_class": "laugh",
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-      "speaker_id": "1289"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017569.json b/conversations/conv_017569.json
deleted file mode 100644
index 78e2869f30f2b718a485e0653e02b9921df3ec6a..0000000000000000000000000000000000000000
--- a/conversations/conv_017569.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "utterance_id": "6339-65534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 5.582205407783793,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 77500
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.748075221111678,
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-      "overlap": true,
-      "utterance_id": "8459-292347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-292347.flac |",
-      "real_speaker_id": "8459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.218530998738352,
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-      "utterance_id": "1636-130501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 80666
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.05629846822796,
-      "end_time": 29.554052832046736,
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-      "overlap": false,
-      "utterance_id": "1636-130501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 149353
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.37284212034819,
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-      "duration": 1.6271578796518114,
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-      "utterance_id": "6339-65534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 161176
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_017573.json b/conversations/conv_017573.json
deleted file mode 100644
index 44bd6a0d6fde1b97e50cafd4554bbb1fdf52cdff..0000000000000000000000000000000000000000
--- a/conversations/conv_017573.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8772-295710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-295710.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 6.664611392339988,
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-      "utterance_id": "8772-270777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
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-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 74209
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.720315831746014,
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-      "duration": 4.279684168253986,
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-      "overlap": false,
-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 57745
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "event_class": "Dishes",
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-      "speaker_id": "8476"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017574.json b/conversations/conv_017574.json
deleted file mode 100644
index e5625b79bdb8ee32cc48021c324e28dbb29045e5..0000000000000000000000000000000000000000
--- a/conversations/conv_017574.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.045391258789785,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1093-132891.flac |",
-      "real_speaker_id": "1093",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "548",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.477718189190522,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 78211
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 165091
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017586.json b/conversations/conv_017586.json
deleted file mode 100644
index 23f2fcbec91527f6f1cb06dfa99332c989dfe103..0000000000000000000000000000000000000000
--- a/conversations/conv_017586.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_017590.json b/conversations/conv_017590.json
deleted file mode 100644
index 5e409f07be8613693f4e570c0a7a354db99bfa69..0000000000000000000000000000000000000000
--- a/conversations/conv_017590.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_017601.json b/conversations/conv_017601.json
deleted file mode 100644
index 6042aa81874f80758a680dc52b8a24eab6e09b7a..0000000000000000000000000000000000000000
--- a/conversations/conv_017601.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "real_speaker_id": "103",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017617.json b/conversations/conv_017617.json
deleted file mode 100644
index d366755845a986cc967a47e29bb37773671fc376..0000000000000000000000000000000000000000
--- a/conversations/conv_017617.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177784.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "6119",
-      "position_frames": 104013
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017621.json b/conversations/conv_017621.json
deleted file mode 100644
index 07d6c02bf43ac3762427979b12159757eb07289f..0000000000000000000000000000000000000000
--- a/conversations/conv_017621.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.456072533761613,
-      "duration": 5.456072533761613,
-      "start_frame": 0,
-      "duration_frames": 87297,
-      "overlap": false,
-      "utterance_id": "5874-52159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52159.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.156415943636132,
-      "end_time": 12.309993473033026,
-      "duration": 6.153577529396895,
-      "start_frame": 98502,
-      "duration_frames": 98457,
-      "overlap": false,
-      "utterance_id": "2053-138901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138901.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.651787764586087,
-      "end_time": 17.343969983551624,
-      "duration": 4.692182218965537,
-      "start_frame": 202428,
-      "duration_frames": 75074,
-      "overlap": false,
-      "utterance_id": "2272-152267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152267.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.712466307630592,
-      "end_time": 22.68605666172943,
-      "duration": 4.973590354098839,
-      "start_frame": 283399,
-      "duration_frames": 79577,
-      "overlap": false,
-      "utterance_id": "2053-138901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138901.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 98457
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.432960224715377,
-      "end_time": 28.68988721506216,
-      "duration": 5.256926990346784,
-      "start_frame": 374927,
-      "duration_frames": 84110,
-      "overlap": false,
-      "utterance_id": "5874-52160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52160.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.224736428284974,
-      "end_time": 32.0,
-      "duration": 2.7752635717150262,
-      "start_frame": 467595,
-      "duration_frames": 44404,
-      "overlap": false,
-      "utterance_id": "2272-152267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152267.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 75074
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_4.wav",
-      "duration": 1.895283446712018,
-      "start_time": 8.279870378803697
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_017636.json b/conversations/conv_017636.json
deleted file mode 100644
index c2bc47d3eeb4160ab1a836baa1fbe0a49d5cb003..0000000000000000000000000000000000000000
--- a/conversations/conv_017636.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.16040228647838,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.649925157502477,
-      "duration": 5.649925157502477,
-      "start_frame": 0,
-      "duration_frames": 90398,
-      "overlap": false,
-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.4679376905624135,
-      "end_time": 10.661795041381456,
-      "duration": 4.193857350819042,
-      "start_frame": 103487,
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-      "overlap": false,
-      "utterance_id": "3650-168636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168636.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.118841606013085,
-      "end_time": 16.228821362774962,
-      "duration": 5.109979756761876,
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-      "duration_frames": 81759,
-      "overlap": true,
-      "utterance_id": "3334-171008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.108892636355733,
-      "end_time": 20.37666277981826,
-      "duration": 3.267770143462529,
-      "start_frame": 273742,
-      "duration_frames": 52284,
-      "overlap": true,
-      "utterance_id": "3650-168636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168636.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 67101
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.21875990984013,
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-      "duration_frames": 52457,
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-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 90398
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.802141758620277,
-      "end_time": 30.851404251115298,
-      "duration": 6.04926249249502,
-      "start_frame": 396834,
-      "duration_frames": 96788,
-      "overlap": false,
-      "utterance_id": "3334-171008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 81759
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.17754752402128,
-      "end_time": 31.16040228647838,
-      "duration": 0.9828547624571016,
-      "start_frame": 482840,
-      "duration_frames": 15725,
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-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
-      "duration": 12.759365079365079,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
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-      "start_time": 18.148861902320096
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3650/laugh/0094.wav",
-      "duration": 0.6280568589779882,
-      "start_time": 20.559665946341948,
-      "speaker_id": "3650"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3334/laugh/0082.wav",
-      "duration": 0.92,
-      "start_time": 28.310677495332317,
-      "speaker_id": "3334"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4474/laugh/0020.wav",
-      "duration": 0.765699122730924,
-      "start_time": 31.234300877269074,
-      "speaker_id": "4474"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017637.json b/conversations/conv_017637.json
deleted file mode 100644
index 3300de9fbb0efbde58d90f643547f63e8642ec58..0000000000000000000000000000000000000000
--- a/conversations/conv_017637.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.611915345434292,
-      "duration": 4.611915345434292,
-      "start_frame": 0,
-      "duration_frames": 73790,
-      "overlap": false,
-      "utterance_id": "8272-279789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.62292831053472,
-      "end_time": 12.176012624130326,
-      "duration": 6.553084313595606,
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-      "overlap": false,
-      "utterance_id": "7607-89899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
-      "real_speaker_id": "7607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.242660573225308,
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-      "duration": 5.147576942517113,
-      "start_frame": 195882,
-      "duration_frames": 82361,
-      "overlap": true,
-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.826907648400447,
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-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 82361
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.712465092562542,
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-      "utterance_id": "8272-279781",
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-      "real_speaker_id": "8272",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.81505991327684,
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-      "utterance_id": "8015-112691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112691.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 2.4273145867510055,
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8015/cough/0045.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017640.json b/conversations/conv_017640.json
deleted file mode 100644
index de10e6ed38594cc71d0257f847888d3d82120e0a..0000000000000000000000000000000000000000
--- a/conversations/conv_017640.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.070575667961382,
-      "duration": 4.070575667961382,
-      "start_frame": 0,
-      "duration_frames": 65129,
-      "overlap": false,
-      "utterance_id": "3989-182394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182394.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.897917306314934,
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-      "duration": 5.263263721616242,
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-      "duration_frames": 84212,
-      "overlap": false,
-      "utterance_id": "1343-158781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158781.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.05226517208929,
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-      "start_frame": 176836,
-      "duration_frames": 111493,
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-      "utterance_id": "3989-182394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182394.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 65129
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.097062888228546,
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-      "utterance_id": "4352-10941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-10941.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1343-139681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-139681.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3989/laugh/0008.wav",
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-    {
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_017656.json b/conversations/conv_017656.json
deleted file mode 100644
index beb2aaf838f1f995605ff2a222d17fde372f9458..0000000000000000000000000000000000000000
--- a/conversations/conv_017656.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.77788449363547,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.984593250922021,
-      "duration": 6.984593250922021,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8432-54083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-54083.flac |",
-      "real_speaker_id": "8432",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.527272265730204,
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-      "utterance_id": "8432-16000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-16000.flac |",
-      "real_speaker_id": "8432",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19373.flac |",
-      "real_speaker_id": "5261",
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-      "speaker_id": "5261"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017660.json b/conversations/conv_017660.json
deleted file mode 100644
index 81de36de2d533c88cef8bc9bda2d2ac4528e8222..0000000000000000000000000000000000000000
--- a/conversations/conv_017660.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "5181",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2488.flac |",
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-      "position_frames": 89345
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2273-152357.flac |",
-      "real_speaker_id": "2273",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.3110145397629,
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-      "utterance_id": "5181-2490",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2490.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "481-123719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123719.flac |",
-      "real_speaker_id": "481",
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 30.48,
-      "speaker_id": "481"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017661.json b/conversations/conv_017661.json
deleted file mode 100644
index a28ed6ac804ed0653a9d1d11bb9deb52c5de4a05..0000000000000000000000000000000000000000
--- a/conversations/conv_017661.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "448",
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-      "real_speaker_id": "3215",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
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-      "position_frames": 175793
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_017671.json b/conversations/conv_017671.json
deleted file mode 100644
index 94f1d8d36b4d6597ebeba1707de55b1137593321..0000000000000000000000000000000000000000
--- a/conversations/conv_017671.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.758263879386412,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5054-18527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-18527.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-51153.flac |",
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-      "event_class": "Dog",
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-    {
-      "event_class": "laugh",
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-    {
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-      "event_class": "cough",
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-      "duration": 1.0,
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-      "speaker_id": "5796"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017676.json b/conversations/conv_017676.json
deleted file mode 100644
index 8d21a2a9f34ea7176cc03160598d4c872271d012..0000000000000000000000000000000000000000
--- a/conversations/conv_017676.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.675714035630875,
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-      "start_frame": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_017683.json b/conversations/conv_017683.json
deleted file mode 100644
index df6d33a692a6296c4dd50d7df1b2bfa8c918d44e..0000000000000000000000000000000000000000
--- a/conversations/conv_017683.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.301548146503343,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.641406272804971,
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-      "real_speaker_id": "1212",
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-      "segment_id": "seg0002",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_017695.json b/conversations/conv_017695.json
deleted file mode 100644
index dfe6f0a3e0aca93a5c6c1843251317b4a6367b41..0000000000000000000000000000000000000000
--- a/conversations/conv_017695.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1664-137600",
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\ No newline at end of file
diff --git a/conversations/conv_017699.json b/conversations/conv_017699.json
deleted file mode 100644
index bff871b7517ddf2b6e2f6ffad530e5ec38cf1b14..0000000000000000000000000000000000000000
--- a/conversations/conv_017699.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5951",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_017705.json b/conversations/conv_017705.json
deleted file mode 100644
index 92ba62ecf0fd63b9ecde00b833cb260c347add34..0000000000000000000000000000000000000000
--- a/conversations/conv_017705.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-92915.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.210845680979425,
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-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 146795
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7525/cough/0017.wav",
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-      "start_time": 29.26076729089548,
-      "speaker_id": "7525"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017709.json b/conversations/conv_017709.json
deleted file mode 100644
index e15506dec42e679e85b0fad747e8168beb392f0b..0000000000000000000000000000000000000000
--- a/conversations/conv_017709.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.370621329047438,
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-      "overlap": false,
-      "utterance_id": "1012-133424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1012-133424.flac |",
-      "real_speaker_id": "1012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.968751216690414,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
-      "real_speaker_id": "7011",
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-      "utterance_id": "8075-279239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279239.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 20.165331437874627,
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-      "utterance_id": "8075-279233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279233.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.728289357665208,
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-      "overlap": false,
-      "utterance_id": "1012-133424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1012-133424.flac |",
-      "real_speaker_id": "1012",
-      "position_frames": 69929
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.420388542925707,
-      "end_time": 32.0,
-      "duration": 2.579611457074293,
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-      "overlap": false,
-      "utterance_id": "8075-279229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279229.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-      "duration": 1.16,
-      "start_time": 1.5365042716398138,
-      "speaker_id": "1012"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017713.json b/conversations/conv_017713.json
deleted file mode 100644
index e7b31342ff0743427f773acd9a1c88c57237e5c8..0000000000000000000000000000000000000000
--- a/conversations/conv_017713.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.42341276750722,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "7608-115034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.999268807236177,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3595-176633.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 69659
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-      "start_time": 16.896332768689604,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3595-418.flac |",
-      "real_speaker_id": "3595",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 146880
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.79320217871043,
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-      "utterance_id": "8266-258262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258262.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.010035595360247,
-      "end_time": 31.42341276750722,
-      "duration": 0.4133771721469728,
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-      "overlap": true,
-      "utterance_id": "8266-258263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258263.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_6.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7608/laugh/0023.wav",
-      "duration": 1.68,
-      "start_time": 4.60762113407332,
-      "speaker_id": "7608"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7608/laugh/0025.wav",
-      "duration": 0.96,
-      "start_time": 10.316810856105525,
-      "speaker_id": "7608"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8266/cough/0088.wav",
-      "duration": 0.48014552164178753,
-      "start_time": 28.34959953235302,
-      "speaker_id": "8266"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017718.json b/conversations/conv_017718.json
deleted file mode 100644
index 31ebaecf2fe054ed47c2cbba8d9fe1226f448fed..0000000000000000000000000000000000000000
--- a/conversations/conv_017718.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.537330737070874,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.267076517574977,
-      "duration": 5.267076517574977,
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-      "overlap": false,
-      "utterance_id": "3641-6870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.7988345586144,
-      "end_time": 11.724897871005851,
-      "duration": 5.926063312391451,
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-      "utterance_id": "6159-58440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6159-58440.flac |",
-      "real_speaker_id": "6159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.950450031953858,
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-      "duration": 6.64541296756799,
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-      "duration_frames": 106326,
-      "overlap": false,
-      "utterance_id": "5561-39621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-39621.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.108988085997634,
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-      "duration": 5.312380912223875,
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-      "utterance_id": "3641-6870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 84273
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 169271
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.067072676865198,
-      "end_time": 31.537330737070874,
-      "duration": 1.4702580602056763,
-      "start_frame": 481073,
-      "duration_frames": 23524,
-      "overlap": true,
-      "utterance_id": "5561-41615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-41615.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.961955043173017,
-      "start_time": 4.736265618630552
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
-      "duration": 0.16310657596371883,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3641/laugh/0044.wav",
-      "duration": 1.16,
-      "start_time": 2.7133598839683413,
-      "speaker_id": "3641"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3641/cough/0064.wav",
-      "duration": 0.3143818415552768,
-      "start_time": 0,
-      "speaker_id": "3641"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6159/laugh/0042.wav",
-      "duration": 1.32,
-      "start_time": 11.843777401895917,
-      "speaker_id": "6159"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5561/cough/0061.wav",
-      "duration": 0.8473165131235822,
-      "start_time": 10.98884580014954,
-      "speaker_id": "5561"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017724.json b/conversations/conv_017724.json
deleted file mode 100644
index 85604bbf6f4455da855dcea4f93678f594a577cd..0000000000000000000000000000000000000000
--- a/conversations/conv_017724.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_017725.json b/conversations/conv_017725.json
deleted file mode 100644
index 5a7b95228aaf5d5c634ae4c47ef3251cc4563ae0..0000000000000000000000000000000000000000
--- a/conversations/conv_017725.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_017729.json b/conversations/conv_017729.json
deleted file mode 100644
index 60cf01a5417c623c3966c42e1a88640ec5d5330b..0000000000000000000000000000000000000000
--- a/conversations/conv_017729.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_017733.json b/conversations/conv_017733.json
deleted file mode 100644
index be3518a815f1bf5fb2d047c2a93ed454e5f86915..0000000000000000000000000000000000000000
--- a/conversations/conv_017733.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": "7517"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_017734.json b/conversations/conv_017734.json
deleted file mode 100644
index b55f519caaece573a1f7613496634a38b74d22a2..0000000000000000000000000000000000000000
--- a/conversations/conv_017734.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7732-107517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
-      "real_speaker_id": "7732",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-140277.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142276.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.592404659050665,
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-      "overlap": false,
-      "utterance_id": "1572-141718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.40554937509117,
-      "end_time": 25.778083744479858,
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-      "utterance_id": "7732-107517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
-      "real_speaker_id": "7732",
-      "position_frames": 88016
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.496868124831927,
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-      "duration": 5.503131875168073,
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-      "overlap": false,
-      "utterance_id": "250-142286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142286.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-      "start_time": 5.571682869037857,
-      "speaker_id": "7732"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017744.json b/conversations/conv_017744.json
deleted file mode 100644
index fbc8274e7cd92cf7623bbf00474e40146c8c7bc7..0000000000000000000000000000000000000000
--- a/conversations/conv_017744.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.111791815026496,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "5036-18451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
-      "real_speaker_id": "5036",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.8389154503978045,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-130093.flac |",
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-    {
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-123602.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
-      "real_speaker_id": "5036",
-      "position_frames": 166288
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.569610932758135,
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-      "utterance_id": "1649-150127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1649-150127.flac |",
-      "real_speaker_id": "1649",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.74,
-      "start_time": 30.26,
-      "speaker_id": "5036"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017748.json b/conversations/conv_017748.json
deleted file mode 100644
index 0e964d0525925547401775c7b03e6536aa8acde0..0000000000000000000000000000000000000000
--- a/conversations/conv_017748.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "4277",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 148745
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/319/laugh/0079.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "319"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4277/laugh/0066.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4277/cough/0060.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017752.json b/conversations/conv_017752.json
deleted file mode 100644
index 66ea91cf24e999aaa085c547501d4475bddbbd28..0000000000000000000000000000000000000000
--- a/conversations/conv_017752.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.977120260932132,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7135-80032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7135-80032.flac |",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "speaker_id": "7835"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017759.json b/conversations/conv_017759.json
deleted file mode 100644
index 7b186ba92006354c1bf1913391b3b6ca0e9fe5a9..0000000000000000000000000000000000000000
--- a/conversations/conv_017759.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.676281998620432,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279233.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279239.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279239.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 73092
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.96860711672149,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-293469.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8543-280376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280376.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017764.json b/conversations/conv_017764.json
deleted file mode 100644
index b91aeec1a529448d55730c593052b8da4d716795..0000000000000000000000000000000000000000
--- a/conversations/conv_017764.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
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-      "utterance_id": "6627-67850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 90945
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6956-76046.flac |",
-      "real_speaker_id": "6956",
-      "position_frames": 74014
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "speaker_id": "6956"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017768.json b/conversations/conv_017768.json
deleted file mode 100644
index e4627d2f8865f2bd2162fe3c7ad9e999166be1ff..0000000000000000000000000000000000000000
--- a/conversations/conv_017768.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "real_speaker_id": "4915",
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-      "speaker_id": "2582"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017772.json b/conversations/conv_017772.json
deleted file mode 100644
index 97f3bd7240fa7d36371a13102ab6bcc7182746c4..0000000000000000000000000000000000000000
--- a/conversations/conv_017772.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86815.flac |",
-      "real_speaker_id": "7302",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 61101
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86815.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 78453
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.178658887166534,
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-      "utterance_id": "7302-86814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86814.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7302/laugh/0078.wav",
-      "duration": 1.12,
-      "start_time": 13.48209086621977,
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-    {
-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 7.552036020943028,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7302/cough/0084.wav",
-      "duration": 0.96,
-      "start_time": 26.066281898774992,
-      "speaker_id": "7302"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017787.json b/conversations/conv_017787.json
deleted file mode 100644
index 9170a95981fd461e27310d8991926d167aa2f7a1..0000000000000000000000000000000000000000
--- a/conversations/conv_017787.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.1547414327567855,
-      "duration": 5.1547414327567855,
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-      "overlap": false,
-      "utterance_id": "4172-23246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-23246.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.171444561482058,
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-      "overlap": false,
-      "utterance_id": "44-207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-207.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.004027498738242,
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-      "overlap": false,
-      "utterance_id": "228-121761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-121761.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.12770774718321,
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-      "overlap": false,
-      "utterance_id": "44-201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.547271643078016,
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-      "duration": 6.365809181556045,
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-      "utterance_id": "4172-23246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-23246.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 82475
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.409184578655022,
-      "end_time": 32.0,
-      "duration": 2.5908154213449777,
-      "start_frame": 470546,
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-      "overlap": false,
-      "utterance_id": "228-131212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-      "duration": 1.2,
-      "start_time": 14.798109637665593,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "4172"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_017791.json b/conversations/conv_017791.json
deleted file mode 100644
index ba1aba5466f8187e7ce80ccd41168be92b24cdd5..0000000000000000000000000000000000000000
--- a/conversations/conv_017791.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3245-169642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-169642.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-132753.flac |",
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-      "utterance_id": "6892-278268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-278268.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.19168538922964,
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-      "overlap": false,
-      "utterance_id": "1595-138031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.736752090522923,
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-      "utterance_id": "6892-278268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-278268.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 88154
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.5522144540593885,
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-      "utterance_id": "1595-138031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 80091
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-      "start_time": 8.252732626086802
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6892/laugh/0127.wav",
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-      "speaker_id": "6892"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017800.json b/conversations/conv_017800.json
deleted file mode 100644
index 64cddddc8a6b034b8f688efc70f85d67ca52bc55..0000000000000000000000000000000000000000
--- a/conversations/conv_017800.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.0402982884118455,
-      "duration": 4.0402982884118455,
-      "start_frame": 0,
-      "duration_frames": 64644,
-      "overlap": false,
-      "utterance_id": "8040-260924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-260924.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.268749748193775,
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-      "duration_frames": 52042,
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-      "utterance_id": "8040-260924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-260924.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 64644
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2368-157056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157056.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "2368",
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-    {
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-      "real_speaker_id": "8040",
-      "position_frames": 116686
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 77869,
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-      "utterance_id": "6352-83633",
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-      "real_speaker_id": "6352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.34498551984889,
-      "end_time": 32.0,
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-      "utterance_id": "8040-260923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-260923.flac |",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8040/laugh/0090.wav",
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-      "start_time": 16.554383036962385,
-      "speaker_id": "8040"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017816.json b/conversations/conv_017816.json
deleted file mode 100644
index 1bc99b5bb684af68c3c7de5d56a9c45820b8417a..0000000000000000000000000000000000000000
--- a/conversations/conv_017816.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.389373292850063,
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-      "start_frame": 0,
-      "duration_frames": 70229,
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-      "utterance_id": "1757-128127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128127.flac |",
-      "real_speaker_id": "1757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.949733791423961,
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-      "utterance_id": "5246-30101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-30101.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150915.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
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-      "speaker_id": "5246"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017820.json b/conversations/conv_017820.json
deleted file mode 100644
index 249826b1a7c730cb54b569c2cde601d8c9c6ac81..0000000000000000000000000000000000000000
--- a/conversations/conv_017820.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 5.112219797285984,
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-      "utterance_id": "5993-19639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19639.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8797-294123.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8797-294123.flac |",
-      "real_speaker_id": "8797",
-      "position_frames": 113515
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 76404
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_017827.json b/conversations/conv_017827.json
deleted file mode 100644
index 1da748220443db9eee4f55da76588dd61d6d582e..0000000000000000000000000000000000000000
--- a/conversations/conv_017827.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
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-    {
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-      "real_speaker_id": "5157",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 179885
-    },
-    {
-      "segment_id": "seg0006",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_017831.json b/conversations/conv_017831.json
deleted file mode 100644
index ae20d8d3a20c30e2f28504aca5ec15116ee71279..0000000000000000000000000000000000000000
--- a/conversations/conv_017831.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.319240680117858,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "727-124443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.663334519089872,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6051-61724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6051-61724.flac |",
-      "real_speaker_id": "6051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.91167981236338,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
-      "position_frames": 165151
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "6051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.513521242424513,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6051-61724.flac |",
-      "real_speaker_id": "6051",
-      "position_frames": 64945
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_017836.json b/conversations/conv_017836.json
deleted file mode 100644
index 5ddf37dc57c9fb7b5d46eb8d97548f6df9c7e887..0000000000000000000000000000000000000000
--- a/conversations/conv_017836.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "duration_frames": 54216,
-      "overlap": false,
-      "utterance_id": "5588-68188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-68188.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_017841.json b/conversations/conv_017841.json
deleted file mode 100644
index 852b5a104f4dbd6f050561026e2c502f3e892d7f..0000000000000000000000000000000000000000
--- a/conversations/conv_017841.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284269.flac |",
-      "real_speaker_id": "8490",
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-      "utterance_id": "4216-10192",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_017857.json b/conversations/conv_017857.json
deleted file mode 100644
index 529ed2e73dae471852209bf0587863e48108a72b..0000000000000000000000000000000000000000
--- a/conversations/conv_017857.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_017861.json b/conversations/conv_017861.json
deleted file mode 100644
index cd1898eed670fad5aca965b3c30a8c4cf88e094c..0000000000000000000000000000000000000000
--- a/conversations/conv_017861.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_017866.json b/conversations/conv_017866.json
deleted file mode 100644
index a671e3bfe364d6a7961b0ef37e0a735bdbd70d88..0000000000000000000000000000000000000000
--- a/conversations/conv_017866.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "2988",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017870.json b/conversations/conv_017870.json
deleted file mode 100644
index cdba03fb9092c12d1b8a7052935f99fbb1455631..0000000000000000000000000000000000000000
--- a/conversations/conv_017870.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7395-89882.flac |",
-      "real_speaker_id": "7395",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_017877.json b/conversations/conv_017877.json
deleted file mode 100644
index a7466fd67b72e12976b0ff4a75e08bd16ee2fd11..0000000000000000000000000000000000000000
--- a/conversations/conv_017877.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_017882.json b/conversations/conv_017882.json
deleted file mode 100644
index 99c4971112174323e6f56f6ea9e042b069b86727..0000000000000000000000000000000000000000
--- a/conversations/conv_017882.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_017889.json b/conversations/conv_017889.json
deleted file mode 100644
index 9d794b2dcfacdd571e63fed4ab422c1dd08a7a41..0000000000000000000000000000000000000000
--- a/conversations/conv_017889.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.31930869487378,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67584.flac |",
-      "real_speaker_id": "6575",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73728.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67584.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 74312
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.587803713248256,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.06887467583186,
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-      "utterance_id": "6575-67584",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67584.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 145266
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4800-73729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 53243
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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\ No newline at end of file
diff --git a/conversations/conv_017894.json b/conversations/conv_017894.json
deleted file mode 100644
index db86b4884bcffcf664fe5cf9956966f0b29b6caf..0000000000000000000000000000000000000000
--- a/conversations/conv_017894.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162238.flac |",
-      "real_speaker_id": "2397",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162239.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_3.wav",
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\ No newline at end of file
diff --git a/conversations/conv_017898.json b/conversations/conv_017898.json
deleted file mode 100644
index a9940b97c9520e89c372a11abdcf4945181aec17..0000000000000000000000000000000000000000
--- a/conversations/conv_017898.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017904.json b/conversations/conv_017904.json
deleted file mode 100644
index 413c10b98e6a6d4fb16bcce565fa97b5faf5364c..0000000000000000000000000000000000000000
--- a/conversations/conv_017904.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134579.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "speaker_id": "298"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017908.json b/conversations/conv_017908.json
deleted file mode 100644
index d96660106c01bfad2402e00aa4bbfa519426de86..0000000000000000000000000000000000000000
--- a/conversations/conv_017908.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.467751862540602,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3545.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-129752.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 62363
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-129285.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.936959171335992,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-129285.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 65469
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.26730790644929,
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-      "utterance_id": "2270-3545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3545.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 95398
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_017909.json b/conversations/conv_017909.json
deleted file mode 100644
index 408b209f1335ce58955959b1d145eb8fc7196ae3..0000000000000000000000000000000000000000
--- a/conversations/conv_017909.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5390-30102",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
-      "real_speaker_id": "5390",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36048.flac |",
-      "real_speaker_id": "4824",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.96517999443698,
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-      "overlap": true,
-      "utterance_id": "5390-24512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-24512.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 4.577603724670524,
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-      "utterance_id": "4824-36027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36027.flac |",
-      "real_speaker_id": "4824",
-      "position_frames": 0
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-  "paralinguistic_events": [
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-      "start_time": 8.633598209230312,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5390/laugh/0077.wav",
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-    {
-      "event_class": "cough",
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-      "start_time": 30.96,
-      "speaker_id": "4824"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_017912.json b/conversations/conv_017912.json
deleted file mode 100644
index f52b4d9ad053e4115f893844978b5b6c4503a918..0000000000000000000000000000000000000000
--- a/conversations/conv_017912.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7239-63500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.869971903018171,
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-      "duration_frames": 57378,
-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1485-121385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-121385.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.229878242854475,
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-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 57378
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "7239",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 128482
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "duration": 2.245394153366057,
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-      "speaker_id": "7239"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017923.json b/conversations/conv_017923.json
deleted file mode 100644
index b13729bb1b41bcf028b7e16d1864bc4e0ad813f3..0000000000000000000000000000000000000000
--- a/conversations/conv_017923.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.955296065039985,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32137.flac |",
-      "real_speaker_id": "5147",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "5147",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32137.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017924.json b/conversations/conv_017924.json
deleted file mode 100644
index 962eb51372f5d7e61ab4d42dd97189fc0fb42f5c..0000000000000000000000000000000000000000
--- a/conversations/conv_017924.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121440.flac |",
-      "real_speaker_id": "3021",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_017928.json b/conversations/conv_017928.json
deleted file mode 100644
index e4723e159dccb36985ba77bb9159dc554fe1bda1..0000000000000000000000000000000000000000
--- a/conversations/conv_017928.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_017932.json b/conversations/conv_017932.json
deleted file mode 100644
index e1493112cbb12ee7102abc4895879577b9528da2..0000000000000000000000000000000000000000
--- a/conversations/conv_017932.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-2338.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-111618.flac |",
-      "real_speaker_id": "7150",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7150",
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_017935.json b/conversations/conv_017935.json
deleted file mode 100644
index 6cfb60632f99769b16d9298539b81f82d89f47fb..0000000000000000000000000000000000000000
--- a/conversations/conv_017935.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.39694101882897,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "real_speaker_id": "4179",
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-    {
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-      "real_speaker_id": "233",
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\ No newline at end of file
diff --git a/conversations/conv_017945.json b/conversations/conv_017945.json
deleted file mode 100644
index 83e65b0229385acfe4faaa91c414c0be3945088a..0000000000000000000000000000000000000000
--- a/conversations/conv_017945.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_017949.json b/conversations/conv_017949.json
deleted file mode 100644
index 68e9a18699865c88d4ac0bc298014d370c19d7a4..0000000000000000000000000000000000000000
--- a/conversations/conv_017949.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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\ No newline at end of file
diff --git a/conversations/conv_017953.json b/conversations/conv_017953.json
deleted file mode 100644
index cfeb6595e1225a8cb26428327a0ed0c62a1e962c..0000000000000000000000000000000000000000
--- a/conversations/conv_017953.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5929-48603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
-      "real_speaker_id": "5929",
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-}
\ No newline at end of file
diff --git a/conversations/conv_017962.json b/conversations/conv_017962.json
deleted file mode 100644
index bc0fee77a498c71e3232d3f4489f852ec498ad5d..0000000000000000000000000000000000000000
--- a/conversations/conv_017962.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_017965.json b/conversations/conv_017965.json
deleted file mode 100644
index 37d28c8fd6b18df2ddb5882cf018be0c4677a21f..0000000000000000000000000000000000000000
--- a/conversations/conv_017965.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_017969.json b/conversations/conv_017969.json
deleted file mode 100644
index 8b8f92718295926b311b03fe637ef9f2e3d53958..0000000000000000000000000000000000000000
--- a/conversations/conv_017969.json
+++ /dev/null
@@ -1,101 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.80069528970663,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1765-143010.flac |",
-      "real_speaker_id": "1765",
-      "position_frames": 78682
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_017973.json b/conversations/conv_017973.json
deleted file mode 100644
index 8f600a153fd109e42e89e55ac9791625a52d370d..0000000000000000000000000000000000000000
--- a/conversations/conv_017973.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "7702-292568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-292568.flac |",
-      "real_speaker_id": "7702",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7702-96101",
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-  ],
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-      "event_class": "laugh",
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-      "start_time": 31.166763063901104,
-      "speaker_id": "7702"
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-}
\ No newline at end of file
diff --git a/conversations/conv_017974.json b/conversations/conv_017974.json
deleted file mode 100644
index b3690aa1b8648a7fd6f423605eb9a0fe37215ba5..0000000000000000000000000000000000000000
--- a/conversations/conv_017974.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_017986.json b/conversations/conv_017986.json
deleted file mode 100644
index 4d3d9ba4e18645f52daad7485f46adda255ffb42..0000000000000000000000000000000000000000
--- a/conversations/conv_017986.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_017990.json b/conversations/conv_017990.json
deleted file mode 100644
index 74318e1cf54d22b97f5a39f8b17554d8261a585f..0000000000000000000000000000000000000000
--- a/conversations/conv_017990.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_018002.json b/conversations/conv_018002.json
deleted file mode 100644
index 0377d93db785c0865a0909fdd211a34dde40bf94..0000000000000000000000000000000000000000
--- a/conversations/conv_018002.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1536/cough/0030.wav",
-      "duration": 1.3706867016920057,
-      "start_time": 30.629313298307995,
-      "speaker_id": "1536"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018005.json b/conversations/conv_018005.json
deleted file mode 100644
index 2e0cdb26332a95553dbc8e6a6b19cf96f6f62953..0000000000000000000000000000000000000000
--- a/conversations/conv_018005.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.97663456830186,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.0783665319837645,
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-      "start_frame": 0,
-      "duration_frames": 97253,
-      "overlap": false,
-      "utterance_id": "5933-73033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-73033.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.502812328947093,
-      "end_time": 13.025690086303467,
-      "duration": 6.522877757356374,
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-      "overlap": false,
-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.616995559272446,
-      "end_time": 19.382844075065346,
-      "duration": 5.7658485157929,
-      "start_frame": 217871,
-      "duration_frames": 92253,
-      "overlap": false,
-      "utterance_id": "5933-104482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-104482.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.274668293183453,
-      "end_time": 25.378538028229993,
-      "duration": 5.103869735046541,
-      "start_frame": 324394,
-      "duration_frames": 81661,
-      "overlap": false,
-      "utterance_id": "5506-69895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69895.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.542727322674843,
-      "end_time": 31.97663456830186,
-      "duration": 5.4339072456270205,
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-      "duration_frames": 86942,
-      "overlap": false,
-      "utterance_id": "1092-134562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134562.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
-      "duration": 0.23598639455782314,
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5506/laugh/0109.wav",
-      "duration": 1.26,
-      "start_time": 25.617935919323894,
-      "speaker_id": "5506"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1092/cough/0089.wav",
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-      "speaker_id": "1092"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018013.json b/conversations/conv_018013.json
deleted file mode 100644
index 15525899ab8edfbf9bf986a106b6694840fbc329..0000000000000000000000000000000000000000
--- a/conversations/conv_018013.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1595-138031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.852318371900148,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-29406.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86027.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.589641064025447,
-      "end_time": 25.60145434510043,
-      "duration": 5.01181328107498,
-      "start_frame": 329434,
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-      "overlap": false,
-      "utterance_id": "4771-29406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-29406.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 103280
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.367678666037413,
-      "end_time": 32.0,
-      "duration": 5.632321333962587,
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-      "overlap": false,
-      "utterance_id": "4771-29403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-29403.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
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-      "speaker_id": "4771"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018014.json b/conversations/conv_018014.json
deleted file mode 100644
index bd38993320f9f8134945ef2f4b4e3850a5a6d769..0000000000000000000000000000000000000000
--- a/conversations/conv_018014.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "start_time": 0.0,
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-      "utterance_id": "6138-93188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64098.flac |",
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-      "overlap": true,
-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64100.flac |",
-      "real_speaker_id": "5894",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_018018.json b/conversations/conv_018018.json
deleted file mode 100644
index ade472783654d7dd7ea352a8f1be8972c374dcd6..0000000000000000000000000000000000000000
--- a/conversations/conv_018018.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1311-134170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4088",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5038-15789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-15789.flac |",
-      "real_speaker_id": "5038",
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-    {
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-    {
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-      "start_time": 31.367959242108398,
-      "speaker_id": "4088"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018022.json b/conversations/conv_018022.json
deleted file mode 100644
index 11b24da696f80af550ca2681a55bbab0bfefec95..0000000000000000000000000000000000000000
--- a/conversations/conv_018022.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1403-138552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.230497461080795,
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-      "utterance_id": "1403-135907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-135907.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "utterance_id": "4179-25937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4179-25937.flac |",
-      "real_speaker_id": "4179",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.994139451360624,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4179-25937.flac |",
-      "real_speaker_id": "4179",
-      "position_frames": 69448
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.0615650496469,
-      "end_time": 32.0,
-      "duration": 2.9384349503530984,
-      "start_frame": 464985,
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-      "overlap": false,
-      "utterance_id": "1403-138552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 95016
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-      "speaker_id": "1403"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_018034.json b/conversations/conv_018034.json
deleted file mode 100644
index cd915a4a6ce531069bf756e5ba93ce0f6e3469dc..0000000000000000000000000000000000000000
--- a/conversations/conv_018034.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138113.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-283569.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.67131007106337,
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-      "utterance_id": "1336-138115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138115.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.068303748721277,
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-      "overlap": true,
-      "utterance_id": "8337-283569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-283569.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 71388
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.81584823110807,
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-      "duration": 2.1841517688919296,
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-      "utterance_id": "1336-138113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138113.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 98695
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "start_time": 24.0362515626529,
-      "speaker_id": "1336"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018038.json b/conversations/conv_018038.json
deleted file mode 100644
index ce7e4c7d5f579fe806758b912ff4824ac27be94d..0000000000000000000000000000000000000000
--- a/conversations/conv_018038.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "593-126932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126932.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126928.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1049-133454",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
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-      "speaker_id": "1049"
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-}
\ No newline at end of file
diff --git a/conversations/conv_018039.json b/conversations/conv_018039.json
deleted file mode 100644
index 72a73e9512dc5c829a1767d8023e84e3f75f1a5e..0000000000000000000000000000000000000000
--- a/conversations/conv_018039.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "4706",
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-    {
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "duration": 1.397437641723356,
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-  "paralinguistic_events": [
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-      "speaker_id": "1863"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018043.json b/conversations/conv_018043.json
deleted file mode 100644
index 59753219be241ae2338c034bc3de992b2a4120d1..0000000000000000000000000000000000000000
--- a/conversations/conv_018043.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1365-134825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134825.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.389912280732183,
-      "end_time": 12.68779185530287,
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-      "utterance_id": "8824-279153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
-      "real_speaker_id": "8824",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
-      "real_speaker_id": "6828",
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-      "speaker_id": 0,
-      "start_time": 18.16529466700567,
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-      "utterance_id": "1365-134804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134804.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
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-      "start_time": 24.33958271333833,
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-      "overlap": false,
-      "utterance_id": "8824-279153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
-      "real_speaker_id": "8824",
-      "position_frames": 84766
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.425248036788666,
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-      "duration": 1.5747519632113338,
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-      "duration_frames": 25196,
-      "overlap": false,
-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 66653
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 11.526118315727373,
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-  "foreground_events": [
-    {
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-      "start_time": 21.551523090218726,
-      "speaker_id": "1365"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.84,
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-      "speaker_id": "8824"
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-      "duration": 0.7577906059939028,
-      "start_time": 27.950493678564218,
-      "speaker_id": "8824"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018044.json b/conversations/conv_018044.json
deleted file mode 100644
index b19ef7f504c2c396783dd4512b741b7e04d5a3b0..0000000000000000000000000000000000000000
--- a/conversations/conv_018044.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "103-1240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1240.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.593384985597255,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
-      "real_speaker_id": "6359",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.505479318732853,
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-      "real_speaker_id": "8394",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6359-64713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
-      "real_speaker_id": "6359",
-      "position_frames": 140439
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.243039675026957,
-      "end_time": 32.0,
-      "duration": 2.7569603249730434,
-      "start_frame": 467888,
-      "duration_frames": 44111,
-      "overlap": false,
-      "utterance_id": "103-1241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 92877
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-  ],
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-      "event_class": "Blender",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 0.74,
-      "start_time": 31.26,
-      "speaker_id": "103"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018052.json b/conversations/conv_018052.json
deleted file mode 100644
index fd0a3f5db70af7a2cf62c9c26366c99e5e999b9e..0000000000000000000000000000000000000000
--- a/conversations/conv_018052.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2297-8377.flac |",
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-    {
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 84118
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_018055.json b/conversations/conv_018055.json
deleted file mode 100644
index a98d426bafa126f1c789e5a102a5ea4d1f3fdb0a..0000000000000000000000000000000000000000
--- a/conversations/conv_018055.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": "8506"
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-}
\ No newline at end of file
diff --git a/conversations/conv_018059.json b/conversations/conv_018059.json
deleted file mode 100644
index be1b2fe0b5bc00001b8ba6867e598143cc78d127..0000000000000000000000000000000000000000
--- a/conversations/conv_018059.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "start_time": 0.0,
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-      "utterance_id": "103-1240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1240.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
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-      "start_time": 15.899502351199816,
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-      "utterance_id": "511-131228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131228.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.556576246124877,
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-      "utterance_id": "5628-22450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-22450.flac |",
-      "real_speaker_id": "5628",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.93176267601601,
-      "end_time": 32.0,
-      "duration": 4.06823732398399,
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-      "duration_frames": 65091,
-      "overlap": false,
-      "utterance_id": "511-131226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131226.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 72305
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018063.json b/conversations/conv_018063.json
deleted file mode 100644
index 36ba2d5d023a066bf20eb65060194312894f974d..0000000000000000000000000000000000000000
--- a/conversations/conv_018063.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "5118-40456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-40456.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-135897.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-121902.flac |",
-      "real_speaker_id": "159",
-      "position_frames": 65639
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
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-      "start_time": 30.968279503018408,
-      "speaker_id": "4841"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018075.json b/conversations/conv_018075.json
deleted file mode 100644
index dd6a01cf66ffa494fd1e57f00e6aa7c7281c4683..0000000000000000000000000000000000000000
--- a/conversations/conv_018075.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.20253151991599,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
-      "position_frames": 0
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-      "real_speaker_id": "4955",
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-      "real_speaker_id": "613",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "4955",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "4257",
-      "position_frames": 89515
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-132862.flac |",
-      "real_speaker_id": "613",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "cough",
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-      "start_time": 12.427711237015354,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018079.json b/conversations/conv_018079.json
deleted file mode 100644
index 4643b7b1dac39a53d9c1a312e4281eafc067954d..0000000000000000000000000000000000000000
--- a/conversations/conv_018079.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4487-1799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4487-1799.flac |",
-      "real_speaker_id": "4487",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4487-1799.flac |",
-      "real_speaker_id": "4487",
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-      "segment_id": "seg0006",
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-      "duration": 1.24,
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-}
\ No newline at end of file
diff --git a/conversations/conv_018080.json b/conversations/conv_018080.json
deleted file mode 100644
index 9e5ab66b66974d9b9908b7c497f4dbd350e4106c..0000000000000000000000000000000000000000
--- a/conversations/conv_018080.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
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-      "real_speaker_id": "2533",
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\ No newline at end of file
diff --git a/conversations/conv_018081.json b/conversations/conv_018081.json
deleted file mode 100644
index 0c21b1ec552b9915c0ef889d9694cba413433b09..0000000000000000000000000000000000000000
--- a/conversations/conv_018081.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_018091.json b/conversations/conv_018091.json
deleted file mode 100644
index 9e1b8db1e6ebdfde663b23f08fd7856157edde45..0000000000000000000000000000000000000000
--- a/conversations/conv_018091.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3925/laugh/0072.wav",
-      "duration": 1.164469924200428,
-      "start_time": 19.486085536531874,
-      "speaker_id": "3925"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6330/laugh/0015.wav",
-      "duration": 1.56,
-      "start_time": 24.053003842419876,
-      "speaker_id": "6330"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018096.json b/conversations/conv_018096.json
deleted file mode 100644
index 48c04d7518ea476b5e00128e9a4fc61d359229c5..0000000000000000000000000000000000000000
--- a/conversations/conv_018096.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6269-66176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66176.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.3220574359292065,
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-      "duration": 6.107456051110326,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66185.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66176.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 94735
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.08387787775885,
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-      "duration": 4.8176664402093365,
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-      "overlap": false,
-      "utterance_id": "2148-6983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6983.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.06605296657626,
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-      "duration": 4.933947033423738,
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-      "overlap": false,
-      "utterance_id": "6269-66176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66176.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 197374
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018101.json b/conversations/conv_018101.json
deleted file mode 100644
index ce3a25eabfd36ade9bdbcd828a86a5fa153a34e0..0000000000000000000000000000000000000000
--- a/conversations/conv_018101.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-121902.flac |",
-      "real_speaker_id": "159",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-135897.flac |",
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-      "utterance_id": "177-55218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-55218.flac |",
-      "real_speaker_id": "177",
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "4848-101836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-101836.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 93004
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.113355917179952,
-      "end_time": 32.0,
-      "duration": 1.8866440828200481,
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-      "duration_frames": 30186,
-      "overlap": false,
-      "utterance_id": "177-55218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-55218.flac |",
-      "real_speaker_id": "177",
-      "position_frames": 75763
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-    {
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-    {
-      "event_class": "laugh",
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-      "start_time": 17.85093407337189,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018106.json b/conversations/conv_018106.json
deleted file mode 100644
index 8ee44bc01929537ec81bc7a82851171f49b0b5d0..0000000000000000000000000000000000000000
--- a/conversations/conv_018106.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1473-135657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-220956.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
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-      "utterance_id": "458-126290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126290.flac |",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018110.json b/conversations/conv_018110.json
deleted file mode 100644
index d47b31da4849dde2ddcf7edd08ba3b423568f9de..0000000000000000000000000000000000000000
--- a/conversations/conv_018110.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.69392588259734,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5641-32124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-32124.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_4.wav",
-      "duration": 1.895283446712018,
-      "start_time": 17.142948475991552
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
-      "duration": 1.5263557369915621,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7933/laugh/0050.wav",
-      "duration": 0.852689163053456,
-      "start_time": 9.770632570204397,
-      "speaker_id": "7933"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018117.json b/conversations/conv_018117.json
deleted file mode 100644
index 8c6fcc8f5ca6b4f086916ace0f6ced2cf73a2c8a..0000000000000000000000000000000000000000
--- a/conversations/conv_018117.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.237478045630079,
-      "duration": 4.237478045630079,
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-      "overlap": false,
-      "utterance_id": "5463-39173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.796331433591355,
-      "end_time": 9.223701966964608,
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-      "duration_frames": 70837,
-      "overlap": true,
-      "utterance_id": "1614-141486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-141486.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.272823070691768,
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-      "duration": 3.629895071623352,
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-      "utterance_id": "5463-39173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 67799
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "5375-40162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40162.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 18.17092131425488,
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-      "utterance_id": "5463-39174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39174.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.557113011273984,
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-      "overlap": false,
-      "utterance_id": "5375-40162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40162.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 50973
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.870705958700597,
-      "end_time": 32.0,
-      "duration": 2.129294041299403,
-      "start_frame": 477931,
-      "duration_frames": 34068,
-      "overlap": false,
-      "utterance_id": "5463-39173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 125877
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
-      "duration": 4.465023714627882,
-      "start_time": 25.0614152284642
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_3.wav",
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1614/laugh/0108.wav",
-      "duration": 0.9861216384940952,
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-      "speaker_id": "1614"
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-      "event_class": "cough",
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-      "duration": 1.1410413038982368,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5375/laugh/0049.wav",
-      "duration": 0.92,
-      "start_time": 16.779057108656286,
-      "speaker_id": "5375"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5463/laugh/0068.wav",
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-      "start_time": 17.27677515672381,
-      "speaker_id": "5463"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018126.json b/conversations/conv_018126.json
deleted file mode 100644
index dbff7692e8ddcfcbe91fdb07ff6860922ef06e8f..0000000000000000000000000000000000000000
--- a/conversations/conv_018126.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "340-124368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.886030965169734,
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-      "utterance_id": "770-131704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-131704.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.255532385902939,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 75825
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 15.334948490313618,
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-      "utterance_id": "770-43321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-43321.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.191701997534935,
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-      "overlap": false,
-      "utterance_id": "770-131704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-131704.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 48226
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.870671614916173,
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-      "duration": 3.3434000411360802,
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-      "duration_frames": 53494,
-      "overlap": false,
-      "utterance_id": "340-124368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 159618
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.43247799722721,
-      "end_time": 32.0,
-      "duration": 0.5675220027727903,
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-      "duration_frames": 9080,
-      "overlap": false,
-      "utterance_id": "770-43321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-43321.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 104945
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 13.704070272224548,
-      "start_time": 4.331893345704522
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.2330663432282494,
-      "start_time": 10.904910642669728
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 1.8686440005072333
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/770/laugh/0038.wav",
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-      "speaker_id": "770"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/770/laugh/0023.wav",
-      "duration": 1.12,
-      "start_time": 20.977306834549957,
-      "speaker_id": "770"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/340/laugh/0052.wav",
-      "duration": 1.171434979716738,
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-      "speaker_id": "340"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/770/laugh/0074.wav",
-      "duration": 0.617540678498772,
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-    {
-      "event_class": "cough",
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-      "duration": 0.76,
-      "start_time": 31.24,
-      "speaker_id": "770"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018130.json b/conversations/conv_018130.json
deleted file mode 100644
index 9313251ba18cca1721b4e0dfd80be1533c74878e..0000000000000000000000000000000000000000
--- a/conversations/conv_018130.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5077-38108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38108.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.016634810364841,
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-      "utterance_id": "5172-29468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 0
-    },
-    {
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-      "overlap": false,
-      "utterance_id": "5077-38105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38105.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.450526952338933,
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-      "start_frame": 391208,
-      "duration_frames": 72176,
-      "overlap": false,
-      "utterance_id": "5172-29468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 100097
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.52354741842442,
-      "end_time": 32.0,
-      "duration": 2.476452581575579,
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-      "duration_frames": 39623,
-      "overlap": false,
-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 105864
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3025/laugh/0025.wav",
-      "duration": 1.24,
-      "start_time": 15.160518808456775,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5172/laugh/0012.wav",
-      "duration": 1.08,
-      "start_time": 23.19826846296019,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3025/laugh/0058.wav",
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-      "start_time": 30.972148685145562,
-      "speaker_id": "3025"
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-}
\ No newline at end of file
diff --git a/conversations/conv_018140.json b/conversations/conv_018140.json
deleted file mode 100644
index 0e6456711bcf41d2f3ea259f44db11ff5f16de8f..0000000000000000000000000000000000000000
--- a/conversations/conv_018140.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7437-96157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96157.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.674527277228137,
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-      "real_speaker_id": "3356",
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-      "real_speaker_id": "7437",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46267.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.779112535318305,
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-      "duration": 3.220887464681695,
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-      "duration_frames": 51534,
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-      "utterance_id": "3356-132542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3356-132542.flac |",
-      "real_speaker_id": "3356",
-      "position_frames": 121163
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "duration": 1.16,
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-}
\ No newline at end of file
diff --git a/conversations/conv_018147.json b/conversations/conv_018147.json
deleted file mode 100644
index b91fd377bd4802bf115ec592574c14aceef702a5..0000000000000000000000000000000000000000
--- a/conversations/conv_018147.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.58554591036723,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 5.7886306311652405,
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-      "overlap": false,
-      "utterance_id": "5266-34501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-34501.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.551856414135355,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8042-245695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-245695.flac |",
-      "real_speaker_id": "8042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "1593-94847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1593-94847.flac |",
-      "real_speaker_id": "1593",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_018151.json b/conversations/conv_018151.json
deleted file mode 100644
index f6891a2b46f51bcd7d5fa7287566bfbaa9a2f299..0000000000000000000000000000000000000000
--- a/conversations/conv_018151.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
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-      "utterance_id": "9022-282357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
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-      "position_frames": 0
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-      "duration_frames": 25947,
-      "overlap": false,
-      "utterance_id": "8028-233366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 89829
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_018156.json b/conversations/conv_018156.json
deleted file mode 100644
index 8f05163f12ced1dd042a4b3531797083ec4dd3a0..0000000000000000000000000000000000000000
--- a/conversations/conv_018156.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6637-69607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6637-69607.flac |",
-      "real_speaker_id": "6637",
-      "position_frames": 0
-    },
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6637-69607.flac |",
-      "real_speaker_id": "6637",
-      "position_frames": 58059
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "7302-86815",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "2930",
-      "position_frames": 75839
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6637-69607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6637-69607.flac |",
-      "real_speaker_id": "6637",
-      "position_frames": 163042
-    },
-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "2930-5059",
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-      "position_frames": 0
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-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018167.json b/conversations/conv_018167.json
deleted file mode 100644
index da077de91e0cb211883b10a2f34294afd25be879..0000000000000000000000000000000000000000
--- a/conversations/conv_018167.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.3825296294581,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "5929-48603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52134.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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\ No newline at end of file
diff --git a/conversations/conv_018171.json b/conversations/conv_018171.json
deleted file mode 100644
index 74c245f23f12b4df67ea9fd8f0a7079b72adc2af..0000000000000000000000000000000000000000
--- a/conversations/conv_018171.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "speaker_id": 0,
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_018184.json b/conversations/conv_018184.json
deleted file mode 100644
index b0656357092541054a3cc3c07b7eb47160b46d3e..0000000000000000000000000000000000000000
--- a/conversations/conv_018184.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_018188.json b/conversations/conv_018188.json
deleted file mode 100644
index 8d167e2cf76fce4f3f685cd10871ff110c83661f..0000000000000000000000000000000000000000
--- a/conversations/conv_018188.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_018192.json b/conversations/conv_018192.json
deleted file mode 100644
index 7a4b6b8aa9abc7116704ec419e7cf0cc86909113..0000000000000000000000000000000000000000
--- a/conversations/conv_018192.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3547-8365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-8365.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 103565
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "duration": 0.9804761156759422,
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-}
\ No newline at end of file
diff --git a/conversations/conv_018193.json b/conversations/conv_018193.json
deleted file mode 100644
index 7e5bd0e933eb088b0270cf1141e399b2c4a3b3a2..0000000000000000000000000000000000000000
--- a/conversations/conv_018193.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.650324261718374,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "666-11243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11243.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.200221599279533,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134568.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11243.flac |",
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-      "real_speaker_id": "1092",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_018202.json b/conversations/conv_018202.json
deleted file mode 100644
index 73350c17b260460b1e421cbfd3fb654f943cda07..0000000000000000000000000000000000000000
--- a/conversations/conv_018202.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1730.flac |",
-      "real_speaker_id": "56",
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-      "real_speaker_id": "7169",
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-      "position_frames": 48674
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 72283,
-      "overlap": false,
-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 135503
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018203.json b/conversations/conv_018203.json
deleted file mode 100644
index b3e977f6e0d1e5c2f033b9813f1f578b585de156..0000000000000000000000000000000000000000
--- a/conversations/conv_018203.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.248439040236153,
-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5606/laugh/0117.wav",
-      "duration": 1.16,
-      "start_time": 22.153806184674924,
-      "speaker_id": "5606"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018215.json b/conversations/conv_018215.json
deleted file mode 100644
index cc975ac8129fa732ff0271408909e5baaec737c5..0000000000000000000000000000000000000000
--- a/conversations/conv_018215.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3319-173247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-173247.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.011699759228763,
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-      "real_speaker_id": "1342",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "3319-171003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-171003.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.4739503599927,
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-      "overlap": true,
-      "utterance_id": "3319-173247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-173247.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 81872
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.09302912801628,
-      "end_time": 29.16208785798701,
-      "duration": 5.069058729970731,
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-      "utterance_id": "3109-165420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.81707346494932,
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-      "duration": 2.1829265350506795,
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-      "utterance_id": "3319-171003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-171003.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 106680
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "foreground_events": [
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-      "duration": 1.2313220306235508,
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-      "speaker_id": "3319"
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-}
\ No newline at end of file
diff --git a/conversations/conv_018219.json b/conversations/conv_018219.json
deleted file mode 100644
index f4c01f704c93704ffe103decfcdc5726ccc440ac..0000000000000000000000000000000000000000
--- a/conversations/conv_018219.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6406-89940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-89940.flac |",
-      "real_speaker_id": "6406",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-88089.flac |",
-      "real_speaker_id": "6406",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98645.flac |",
-      "real_speaker_id": "7478",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.629832626737226,
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-      "overlap": false,
-      "utterance_id": "6406-88089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-88089.flac |",
-      "real_speaker_id": "6406",
-      "position_frames": 111262
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.8283948164700448,
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-      "utterance_id": "4039-184266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
-      "real_speaker_id": "4039",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4039/cough/0097.wav",
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-      "event_class": "cough",
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-      "speaker_id": "7478"
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-}
\ No newline at end of file
diff --git a/conversations/conv_018223.json b/conversations/conv_018223.json
deleted file mode 100644
index 78f21041fb953ad91cc7c9a29c2a7933fdbecdf6..0000000000000000000000000000000000000000
--- a/conversations/conv_018223.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "5968-55202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-55202.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-285357.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-63821.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-285357.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-63821.flac |",
-      "real_speaker_id": "6563",
-      "position_frames": 83232
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_018228.json b/conversations/conv_018228.json
deleted file mode 100644
index 754492ef0d3523e59d3ec848c3537d71f5fed149..0000000000000000000000000000000000000000
--- a/conversations/conv_018228.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6763-74798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74798.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74797.flac |",
-      "real_speaker_id": "6763",
-      "position_frames": 68563
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.513972690346823,
-      "start_time": 18.84541622672432
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.6827907087655447,
-      "start_time": 29.11908335992236
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6763/cough/0007.wav",
-      "duration": 0.877338162121345,
-      "start_time": 9.360593083358202,
-      "speaker_id": "6763"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4402/cough/0007.wav",
-      "duration": 1.2,
-      "start_time": 30.084564941299426,
-      "speaker_id": "4402"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6763/laugh/0060.wav",
-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "6763"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018235.json b/conversations/conv_018235.json
deleted file mode 100644
index 4740926fd5721d3f005677242b0b101c19e0acbc..0000000000000000000000000000000000000000
--- a/conversations/conv_018235.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.68846293049718,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.596119604810227,
-      "duration": 5.596119604810227,
-      "start_frame": 0,
-      "duration_frames": 89537,
-      "overlap": false,
-      "utterance_id": "4172-25907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-25907.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.12674862702308,
-      "end_time": 12.011092480970618,
-      "duration": 5.884343853947538,
-      "start_frame": 98027,
-      "duration_frames": 94149,
-      "overlap": false,
-      "utterance_id": "3553-734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-734.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.315477664963012,
-      "end_time": 17.62270276121456,
-      "duration": 5.307225096251545,
-      "start_frame": 197047,
-      "duration_frames": 84915,
-      "overlap": false,
-      "utterance_id": "39-121916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121916.flac |",
-      "real_speaker_id": "39",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.27773944897524,
-      "end_time": 23.61743678448408,
-      "duration": 5.33969733550884,
-      "start_frame": 292443,
-      "duration_frames": 85435,
-      "overlap": false,
-      "utterance_id": "4172-25907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-25907.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 89537
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.799336350275972,
-      "end_time": 29.068662176261604,
-      "duration": 5.269325825985633,
-      "start_frame": 380789,
-      "duration_frames": 84309,
-      "overlap": true,
-      "utterance_id": "39-121915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121915.flac |",
-      "real_speaker_id": "39",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.070810854911418,
-      "end_time": 31.68846293049718,
-      "duration": 1.617652075585763,
-      "start_frame": 481132,
-      "duration_frames": 25882,
-      "overlap": true,
-      "utterance_id": "4172-23246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-23246.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 14.542165525972784,
-      "start_time": 9.700675794621109
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4172/cough/0124.wav",
-      "duration": 1.4010239164580118,
-      "start_time": 5.777564107310138,
-      "speaker_id": "4172"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3553/laugh/0027.wav",
-      "duration": 1.24,
-      "start_time": 8.315012895630042,
-      "speaker_id": "3553"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/39/laugh/0113.wav",
-      "duration": 1.6,
-      "start_time": 12.31691751794046,
-      "speaker_id": "39"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4172/laugh/0098.wav",
-      "duration": 0.5575040544930925,
-      "start_time": 23.748515590428642,
-      "speaker_id": "4172"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018239.json b/conversations/conv_018239.json
deleted file mode 100644
index 00a6058d8855f1d49df40e9519e9fc326af8e04a..0000000000000000000000000000000000000000
--- a/conversations/conv_018239.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.9842239448586736,
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-      "duration_frames": 63747,
-      "overlap": false,
-      "utterance_id": "698-122876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122876.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.5483923388330996,
-      "end_time": 8.091567117952033,
-      "duration": 4.543174779118934,
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-      "duration_frames": 72690,
-      "overlap": true,
-      "utterance_id": "6402-102886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-102886.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.080193078952107,
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-      "duration": 4.482243738463913,
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-      "overlap": false,
-      "utterance_id": "698-122863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122863.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.49092141905303,
-      "end_time": 19.830535558768357,
-      "duration": 5.3396141397153265,
-      "start_frame": 231854,
-      "duration_frames": 85433,
-      "overlap": false,
-      "utterance_id": "698-123197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-123197.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.42687520943936,
-      "end_time": 25.833287746879368,
-      "duration": 4.406412537440008,
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-      "overlap": false,
-      "utterance_id": "2026-81608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.241774989687997,
-      "end_time": 29.939765817061918,
-      "duration": 3.697990827373922,
-      "start_frame": 419868,
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-      "overlap": false,
-      "utterance_id": "698-122876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122876.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 63747
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.808658145862545,
-      "end_time": 32.0,
-      "duration": 1.1913418541374554,
-      "start_frame": 492938,
-      "duration_frames": 19061,
-      "overlap": false,
-      "utterance_id": "6402-105213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105213.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/698/cough/0108.wav",
-      "duration": 0.7652384176881057,
-      "start_time": 4.050849116279448,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6402/cough/0070.wav",
-      "duration": 0.8302024873145801,
-      "start_time": 8.127770283271706,
-      "speaker_id": "6402"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2026/laugh/0031.wav",
-      "duration": 1.36,
-      "start_time": 19.77242881836181,
-      "speaker_id": "2026"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/698/laugh/0081.wav",
-      "duration": 1.1211968579777396,
-      "start_time": 25.015670092627413,
-      "speaker_id": "698"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018242.json b/conversations/conv_018242.json
deleted file mode 100644
index ec7d25b1b64542c4c829f26a152029fcaa5a236b..0000000000000000000000000000000000000000
--- a/conversations/conv_018242.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.89776291033916,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.0101669220960776,
-      "duration": 3.0101669220960776,
-      "start_frame": 0,
-      "duration_frames": 48162,
-      "overlap": false,
-      "utterance_id": "4965-27767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27767.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 2.4453809450670496,
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-      "duration": 5.885730532543306,
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-      "duration_frames": 94171,
-      "overlap": true,
-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.222526002370738,
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-      "duration": 5.735238316550444,
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-      "overlap": true,
-      "utterance_id": "3990-13164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-13164.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.995580530461282,
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-      "duration_frames": 64955,
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-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 94171
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.726101543251907,
-      "end_time": 25.88787849455879,
-      "duration": 5.161776951306885,
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-      "duration_frames": 82588,
-      "overlap": false,
-      "utterance_id": "4965-27767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27767.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 48162
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.439861054888283,
-      "end_time": 31.89776291033916,
-      "duration": 5.45790185545088,
-      "start_frame": 423037,
-      "duration_frames": 87326,
-      "overlap": false,
-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 159126
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 3.280019032579634,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4965/laugh/0099.wav",
-      "duration": 0.8646063281316841,
-      "start_time": 1.3046840102475519,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5269/laugh/0001.wav",
-      "duration": 1.2729524128345213,
-      "start_time": 20.200013797553456,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5269/cough/0011.wav",
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-      "start_time": 15.604720884002694,
-      "speaker_id": "5269"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018254.json b/conversations/conv_018254.json
deleted file mode 100644
index 2fb59f9659320bb5975192c33e58091c3eb20d9a..0000000000000000000000000000000000000000
--- a/conversations/conv_018254.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.561395346947782,
-      "duration": 5.561395346947782,
-      "start_frame": 0,
-      "duration_frames": 88982,
-      "overlap": false,
-      "utterance_id": "4799-25949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.997744275917775,
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-      "duration_frames": 92406,
-      "overlap": false,
-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7994-258959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258959.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
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-      "segment_id": "seg0005",
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-      "duration": 2.1537417508693224,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 181697
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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\ No newline at end of file
diff --git a/conversations/conv_018255.json b/conversations/conv_018255.json
deleted file mode 100644
index c2d3485faeab069a6700453202408b7d09a0a1b6..0000000000000000000000000000000000000000
--- a/conversations/conv_018255.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.539685689095908,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-121741.flac |",
-      "real_speaker_id": "288",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163517.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 107343
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
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-      "position_frames": 53611
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_018258.json b/conversations/conv_018258.json
deleted file mode 100644
index 7bd4717fcc4e1faf5800beef823619485b4ea891..0000000000000000000000000000000000000000
--- a/conversations/conv_018258.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "position_frames": 106428
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-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 174511
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018262.json b/conversations/conv_018262.json
deleted file mode 100644
index 0da7606fa91e418365e0ae6c485c17f1241856f8..0000000000000000000000000000000000000000
--- a/conversations/conv_018262.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.31012578218357,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "5239-32139",
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-    {
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-      "duration": 1.3282044267714876,
-      "start_time": 19.432677262383056,
-      "speaker_id": "5239"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018269.json b/conversations/conv_018269.json
deleted file mode 100644
index 9d53bddc0e1f9f76016651e26045a31354d67586..0000000000000000000000000000000000000000
--- a/conversations/conv_018269.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.618535757428983,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.303602669323022,
-      "duration": 5.303602669323022,
-      "start_frame": 0,
-      "duration_frames": 84857,
-      "overlap": false,
-      "utterance_id": "1594-135914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.094713128981855,
-      "end_time": 10.910072583630791,
-      "duration": 4.815359454648936,
-      "start_frame": 97515,
-      "duration_frames": 77045,
-      "overlap": false,
-      "utterance_id": "8466-285142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.540285967632494,
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-      "overlap": false,
-      "utterance_id": "1594-135914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 84857
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.193084213903614,
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-      "start_frame": 291089,
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-      "overlap": false,
-      "utterance_id": "8466-274557",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-274557.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.24937947846555,
-      "end_time": 28.533587555633318,
-      "duration": 6.284208077167769,
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-      "duration_frames": 100547,
-      "overlap": false,
-      "utterance_id": "1594-135914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 180775
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.500259929793305,
-      "end_time": 31.618535757428983,
-      "duration": 3.118275827635678,
-      "start_frame": 456004,
-      "duration_frames": 49892,
-      "overlap": true,
-      "utterance_id": "8466-274557",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-274557.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 62256
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_2.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1594/laugh/0090.wav",
-      "duration": 1.36,
-      "start_time": 12.203385242610981,
-      "speaker_id": "1594"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8466/laugh/0050.wav",
-      "duration": 1.24,
-      "start_time": 16.679326556922867,
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-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 16.80512104957064,
-      "speaker_id": "8466"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1594/cough/0003.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8466/cough/0029.wav",
-      "duration": 0.5677601649841476,
-      "start_time": 31.432239835015853,
-      "speaker_id": "8466"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018274.json b/conversations/conv_018274.json
deleted file mode 100644
index 5834ef018b8df9ad6b9125feb0438ec87ff1747d..0000000000000000000000000000000000000000
--- a/conversations/conv_018274.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
-      "end_time": 4.421296592611665,
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-      "duration_frames": 70740,
-      "overlap": false,
-      "utterance_id": "5975-54006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
-      "real_speaker_id": "5975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "3486-166424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "5975-54006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
-      "real_speaker_id": "5975",
-      "position_frames": 70740
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.577414185371165,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66470.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.965306308470023,
-      "end_time": 27.777812077022787,
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-      "overlap": false,
-      "utterance_id": "3486-166446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.950333534935375,
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-      "duration": 4.049666465064625,
-      "start_frame": 447205,
-      "duration_frames": 64794,
-      "overlap": false,
-      "utterance_id": "6518-66465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66465.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
-      "start_time": 18.003284215786802
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "duration": 1.0,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 18.603873421537905,
-      "speaker_id": "6518"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6518"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018278.json b/conversations/conv_018278.json
deleted file mode 100644
index 1981d7ddcf7033e77ccf1caa76701ce669994b15..0000000000000000000000000000000000000000
--- a/conversations/conv_018278.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "622-128666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128666.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128666.flac |",
-      "real_speaker_id": "622",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.51053673777957,
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-      "real_speaker_id": "7148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.427040456586933,
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-      "utterance_id": "622-128666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128666.flac |",
-      "real_speaker_id": "622",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_4.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/622/laugh/0005.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/622/laugh/0074.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018279.json b/conversations/conv_018279.json
deleted file mode 100644
index c3da175874699d4e2341b85b49c707066636c88c..0000000000000000000000000000000000000000
--- a/conversations/conv_018279.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8302-281317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281317.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "625",
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\ No newline at end of file
diff --git a/conversations/conv_018281.json b/conversations/conv_018281.json
deleted file mode 100644
index 22420ec538f718635f69018d3ebfbe8427d0ed24..0000000000000000000000000000000000000000
--- a/conversations/conv_018281.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "num_speakers": 3,
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_018286.json b/conversations/conv_018286.json
deleted file mode 100644
index 185e7bf3cb96009c5eccd2bd8e2c98253d9c63ab..0000000000000000000000000000000000000000
--- a/conversations/conv_018286.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
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\ No newline at end of file
diff --git a/conversations/conv_018290.json b/conversations/conv_018290.json
deleted file mode 100644
index b56d46d2ac248a183326fdf2d63e4ab26d79fe40..0000000000000000000000000000000000000000
--- a/conversations/conv_018290.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_018296.json b/conversations/conv_018296.json
deleted file mode 100644
index 60ac60643579ffbd658c984d29fbee453b4d9c37..0000000000000000000000000000000000000000
--- a/conversations/conv_018296.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "1088",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.895369187603233,
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-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 59403
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 0,
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-      "speaker_id": "5735"
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-}
\ No newline at end of file
diff --git a/conversations/conv_018297.json b/conversations/conv_018297.json
deleted file mode 100644
index d99aca0bebb66550710bdafe9b2937e2a51d55d9..0000000000000000000000000000000000000000
--- a/conversations/conv_018297.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4192-5332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4192-5332.flac |",
-      "real_speaker_id": "4192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.64119891625094,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-129325.flac |",
-      "real_speaker_id": "497",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4192-5332.flac |",
-      "real_speaker_id": "4192",
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-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 24.050446176404005,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4192-5332.flac |",
-      "real_speaker_id": "4192",
-      "position_frames": 198188
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.964552952198897,
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-      "duration": 1.035447047801103,
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-      "utterance_id": "4192-5332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4192-5332.flac |",
-      "real_speaker_id": "4192",
-      "position_frames": 277752
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018307.json b/conversations/conv_018307.json
deleted file mode 100644
index f20c3fb0ffacf7e1b2ae1c205e225556e3b9ac0d..0000000000000000000000000000000000000000
--- a/conversations/conv_018307.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
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-      "real_speaker_id": "8028",
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-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 68418
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "5468",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "duration": 1.7561892610873784,
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-      "utterance_id": "8028-233366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
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-      "position_frames": 97688
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018310.json b/conversations/conv_018310.json
deleted file mode 100644
index 87da71fc1ba9a7c2ad011e0e4097faf65d51bbbc..0000000000000000000000000000000000000000
--- a/conversations/conv_018310.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.253197169337845,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3567-7277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3567-7277.flac |",
-      "real_speaker_id": "3567",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8468-295198",
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-      "real_speaker_id": "8468",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "duration": 1.32,
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-}
\ No newline at end of file
diff --git a/conversations/conv_018311.json b/conversations/conv_018311.json
deleted file mode 100644
index 48cf453f6b9d3588b5b87235d3be377d42ce859f..0000000000000000000000000000000000000000
--- a/conversations/conv_018311.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4993-40688.flac |",
-      "real_speaker_id": "4993",
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-      "event_class": "laugh",
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-      "start_time": 30.36,
-      "speaker_id": "4993"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018327.json b/conversations/conv_018327.json
deleted file mode 100644
index 5eeaba8deb8b5c863696d5450fd8a7e54b75d235..0000000000000000000000000000000000000000
--- a/conversations/conv_018327.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3598-180204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3598-180204.flac |",
-      "real_speaker_id": "3598",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.350974797821934,
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\ No newline at end of file
diff --git a/conversations/conv_018331.json b/conversations/conv_018331.json
deleted file mode 100644
index d5d898dce5cc3ebf254d089d1e21c412dd4dc25e..0000000000000000000000000000000000000000
--- a/conversations/conv_018331.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
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-  ],
-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_018346.json b/conversations/conv_018346.json
deleted file mode 100644
index 7df96888aa67ea1a89f8c484a21bce7222245efc..0000000000000000000000000000000000000000
--- a/conversations/conv_018346.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 81545
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-  "background_events": [
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-      "start_time": 29.73092604904162,
-      "speaker_id": "1081"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018347.json b/conversations/conv_018347.json
deleted file mode 100644
index c4ae4451c4d1d9db86ac57db5a6c11295d537af6..0000000000000000000000000000000000000000
--- a/conversations/conv_018347.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.375376308270493,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134362.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134362.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 103988
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "5163-39921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-39921.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.059570312016234,
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-      "utterance_id": "1647-140649",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-140649.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134373.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018350.json b/conversations/conv_018350.json
deleted file mode 100644
index 42249e211306497833edf28e65741d04676c06f7..0000000000000000000000000000000000000000
--- a/conversations/conv_018350.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4799",
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-      "real_speaker_id": "6006",
-      "position_frames": 52750
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-      "segment_id": "seg0005",
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-      "utterance_id": "4799-25949",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018366.json b/conversations/conv_018366.json
deleted file mode 100644
index 59d491582741f886afe6d8216585061a066e1cb8..0000000000000000000000000000000000000000
--- a/conversations/conv_018366.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1920-1793.flac |",
-      "real_speaker_id": "1920",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-258993.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_018370.json b/conversations/conv_018370.json
deleted file mode 100644
index df7f98fd971a6e9517bbfc62039d61deefe85054..0000000000000000000000000000000000000000
--- a/conversations/conv_018370.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5854-287849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-287849.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "264",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5854-50960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-50960.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_018382.json b/conversations/conv_018382.json
deleted file mode 100644
index 13e93a525fdb66f7a78b7cfb60009a69e9f1f705..0000000000000000000000000000000000000000
--- a/conversations/conv_018382.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
-      "real_speaker_id": "202",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-160960.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 85178
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.140516379834366,
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-      "utterance_id": "1734-142311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
-      "position_frames": 100169
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-  "background_events": [
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_018385.json b/conversations/conv_018385.json
deleted file mode 100644
index c24c16fd5725cf674bda86cb16a5ac027706bc89..0000000000000000000000000000000000000000
--- a/conversations/conv_018385.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132576.flac |",
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-      "real_speaker_id": "3654",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018389.json b/conversations/conv_018389.json
deleted file mode 100644
index ef827b5a08d419efd0d594b8f3b6b927e82f7547..0000000000000000000000000000000000000000
--- a/conversations/conv_018389.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_018393.json b/conversations/conv_018393.json
deleted file mode 100644
index 00596231a0a0d5732c085725b49ca376a2b57a6a..0000000000000000000000000000000000000000
--- a/conversations/conv_018393.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122619.flac |",
-      "real_speaker_id": "1502",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 189560
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122619.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 56194
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-      "event_class": "cough",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018394.json b/conversations/conv_018394.json
deleted file mode 100644
index bc59cfd743ed424cf0dcbec310309b52deb36638..0000000000000000000000000000000000000000
--- a/conversations/conv_018394.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.75019205808492,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.429716317341057,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-102526.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "62-121084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 80735
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 148873
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.559302664857793,
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-      "overlap": true,
-      "utterance_id": "5401-39508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39508.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018402.json b/conversations/conv_018402.json
deleted file mode 100644
index c33a8f4141812409b0ddcdf17a534eca6ca92117..0000000000000000000000000000000000000000
--- a/conversations/conv_018402.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-83701.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "7046",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3567-7277.flac |",
-      "real_speaker_id": "3567",
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-      "utterance_id": "669-129061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129061.flac |",
-      "real_speaker_id": "669",
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-      "real_speaker_id": "7046",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_018405.json b/conversations/conv_018405.json
deleted file mode 100644
index 6e4b6f4d7383bc567f263cdb85632bbeaa870460..0000000000000000000000000000000000000000
--- a/conversations/conv_018405.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "70-121127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121127.flac |",
-      "real_speaker_id": "70",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121130.flac |",
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-    {
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-      "real_speaker_id": "969",
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-      "real_speaker_id": "70",
-      "position_frames": 89548
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "969-134363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134363.flac |",
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018409.json b/conversations/conv_018409.json
deleted file mode 100644
index c7899901ed7f37999a42801f488510fbce893149..0000000000000000000000000000000000000000
--- a/conversations/conv_018409.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.076427152717056,
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-      "utterance_id": "1579-128155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128155.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "915-163369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163369.flac |",
-      "real_speaker_id": "915",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121915.flac |",
-      "real_speaker_id": "39",
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-      "utterance_id": "915-163369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163369.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 72920
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "39-121916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121916.flac |",
-      "real_speaker_id": "39",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.66549937124832,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163372.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "cough",
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-      "duration": 0.5881815438825386,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.6325536266024521,
-      "start_time": 22.590203488979828,
-      "speaker_id": "39"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018413.json b/conversations/conv_018413.json
deleted file mode 100644
index 5d082e0e02479e59b0842280f9c2daf62fd37987..0000000000000000000000000000000000000000
--- a/conversations/conv_018413.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.579777907885084,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.309324038859688,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-12707.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 55658
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.951006226815075,
-      "end_time": 21.017076060901303,
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-      "duration_frames": 81057,
-      "overlap": false,
-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 156400
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.599105464125003,
-      "end_time": 27.778392009894006,
-      "duration": 6.179286545769003,
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-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.977020288279853,
-      "end_time": 31.579777907885084,
-      "duration": 3.6027576196052316,
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-      "utterance_id": "4226-12707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-12707.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 75731
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4226/laugh/0008.wav",
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-      "speaker_id": "4226"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018414.json b/conversations/conv_018414.json
deleted file mode 100644
index 18ec338cf973d1e97bda4f3a134650b9fb7d3632..0000000000000000000000000000000000000000
--- a/conversations/conv_018414.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.702086770595155,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-77173.flac |",
-      "real_speaker_id": "3645",
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-      "utterance_id": "7832-258250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-258250.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 14.937985970475749,
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-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 75971
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration_frames": 61744,
-      "overlap": false,
-      "utterance_id": "3645-39840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-39840.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.828670740187533,
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-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 180712
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_5.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3645/laugh/0043.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
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-}
\ No newline at end of file
diff --git a/conversations/conv_018425.json b/conversations/conv_018425.json
deleted file mode 100644
index c939d3fcd43d55b053a1272bf045483ef389d17b..0000000000000000000000000000000000000000
--- a/conversations/conv_018425.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3537-5704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5704.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.479030969432098,
-      "end_time": 9.754382479516313,
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-      "overlap": false,
-      "utterance_id": "8011-117866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.103620903344751,
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-      "utterance_id": "3537-5704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5704.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 62445
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.592382636967976,
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-      "overlap": false,
-      "utterance_id": "8011-111754",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-111754.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3537",
-      "position_frames": 130065
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.81428043895769,
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-      "duration_frames": 70899,
-      "overlap": true,
-      "utterance_id": "3537-5703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5703.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.913984062266014,
-      "end_time": 32.0,
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-      "utterance_id": "4591-16221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-16221.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8011/laugh/0033.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3537/laugh/0101.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4591/laugh/0071.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "4591"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018429.json b/conversations/conv_018429.json
deleted file mode 100644
index 26fd2a332e38ab93506cb4e52eb0ae6ca299aa13..0000000000000000000000000000000000000000
--- a/conversations/conv_018429.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 30.818981285599815,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.080419822500235,
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-      "utterance_id": "3244-10692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10692.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10692.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_018433.json b/conversations/conv_018433.json
deleted file mode 100644
index fd9a52cd9373ca60119241de51df9a7c45115fbc..0000000000000000000000000000000000000000
--- a/conversations/conv_018433.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.683603845434913,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6660-103629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-103629.flac |",
-      "real_speaker_id": "6660",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134563.flac |",
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-      "speaker_id": "1092"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018443.json b/conversations/conv_018443.json
deleted file mode 100644
index 223ddc0900dbe466131284b4c7a71f86bfffcaa8..0000000000000000000000000000000000000000
--- a/conversations/conv_018443.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "8194",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
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-      "position_frames": 171198
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-  ],
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\ No newline at end of file
diff --git a/conversations/conv_018444.json b/conversations/conv_018444.json
deleted file mode 100644
index 23ba828e6baac6933c4f7d7824881bf67e0829c1..0000000000000000000000000000000000000000
--- a/conversations/conv_018444.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
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-    {
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-      "segment_id": "seg0004",
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-      "position_frames": 94697
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "duration": 1.36,
-      "start_time": 10.217239281312276,
-      "speaker_id": "6529"
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-    {
-      "event_class": "cough",
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-      "duration": 0.693499565617149,
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-      "event_class": "laugh",
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-      "duration": 0.86725747606859,
-      "start_time": 29.044728097014808,
-      "speaker_id": "1040"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018448.json b/conversations/conv_018448.json
deleted file mode 100644
index a68b752cc66427a175907ea331623f8d135bf2d7..0000000000000000000000000000000000000000
--- a/conversations/conv_018448.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.439361789026873,
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-      "overlap": false,
-      "utterance_id": "5637-41170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41170.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.94560381157377,
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-      "duration": 4.874711528332563,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-94500.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "5637-41170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41170.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 87029
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "7392-105672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-105672.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.24837504214058,
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-      "overlap": false,
-      "utterance_id": "7392-94500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-94500.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 77995
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.259569193707993,
-      "end_time": 32.0,
-      "duration": 2.7404308062920073,
-      "start_frame": 468153,
-      "duration_frames": 43846,
-      "overlap": false,
-      "utterance_id": "5637-41170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41170.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 179851
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.1169368076510584,
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-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7392/laugh/0087.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 25.100054868739978,
-      "speaker_id": "7392"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018452.json b/conversations/conv_018452.json
deleted file mode 100644
index f9d094fcb4f24fa32c872695ef206c793f8e30c4..0000000000000000000000000000000000000000
--- a/conversations/conv_018452.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "overlap": false,
-      "utterance_id": "5951-233090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-233090.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-96553.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "5951-57348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-57348.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.277353076563788,
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-      "utterance_id": "7649-96667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96667.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.25717022299527,
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-      "overlap": false,
-      "utterance_id": "7326-245693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-245693.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.9288141141069133,
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-      "overlap": false,
-      "utterance_id": "7326-245693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-245693.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 50546
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.24,
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-    {
-      "event_class": "cough",
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-    {
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-      "duration": 1.1,
-      "start_time": 30.9,
-      "speaker_id": "7326"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018455.json b/conversations/conv_018455.json
deleted file mode 100644
index 9adfa42a85d0379771cfba6ee349cb9b549f07bd..0000000000000000000000000000000000000000
--- a/conversations/conv_018455.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "228-133094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-133094.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "228-121761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-121761.flac |",
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-      "real_speaker_id": "8430",
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-      "speaker_id": 0,
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-      "real_speaker_id": "8430",
-      "position_frames": 77758
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.15054527182972,
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-      "real_speaker_id": "228",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.1533258092609735,
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-      "utterance_id": "487-129440",
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-      "real_speaker_id": "487",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_018464.json b/conversations/conv_018464.json
deleted file mode 100644
index 78cfd54bede34a6f8389c063da27fc8567d1ce2b..0000000000000000000000000000000000000000
--- a/conversations/conv_018464.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "587-41611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41611.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "4830-25898",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-54108.flac |",
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-      "real_speaker_id": "587",
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-      "speaker_id": "587"
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\ No newline at end of file
diff --git a/conversations/conv_018468.json b/conversations/conv_018468.json
deleted file mode 100644
index 1139699103c68e5f3f61a8e4fc49ed510cc69bde..0000000000000000000000000000000000000000
--- a/conversations/conv_018468.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
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-      "real_speaker_id": "5304",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271812.flac |",
-      "real_speaker_id": "8008",
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\ No newline at end of file
diff --git a/conversations/conv_018469.json b/conversations/conv_018469.json
deleted file mode 100644
index eedc4923a7483acef333dbef26e47cd9b51a7099..0000000000000000000000000000000000000000
--- a/conversations/conv_018469.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "5489",
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\ No newline at end of file
diff --git a/conversations/conv_018472.json b/conversations/conv_018472.json
deleted file mode 100644
index 32d160f935bf6aa406b872d6a42aebfa293b088d..0000000000000000000000000000000000000000
--- a/conversations/conv_018472.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018487.json b/conversations/conv_018487.json
deleted file mode 100644
index 5eecc671b8a441c86dae3269da98658151ef0ad1..0000000000000000000000000000000000000000
--- a/conversations/conv_018487.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134208.flac |",
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-    {
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-      "position_frames": 91856
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_018491.json b/conversations/conv_018491.json
deleted file mode 100644
index 9787fe901ed23f95e52b6fa47c83bd23be0d296d..0000000000000000000000000000000000000000
--- a/conversations/conv_018491.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_018501.json b/conversations/conv_018501.json
deleted file mode 100644
index a822748803edb7c2b33b223ffdf140c2eab04104..0000000000000000000000000000000000000000
--- a/conversations/conv_018501.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018506.json b/conversations/conv_018506.json
deleted file mode 100644
index 4d008971186724d7538d8e474d76dd931b87431c..0000000000000000000000000000000000000000
--- a/conversations/conv_018506.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1094/laugh/0030.wav",
-      "duration": 0.7001387964773903,
-      "start_time": 30.260071736661985,
-      "speaker_id": "1094"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018510.json b/conversations/conv_018510.json
deleted file mode 100644
index 033b5cdfa767dd0af1c558798becefa2c5cb7c12..0000000000000000000000000000000000000000
--- a/conversations/conv_018510.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.658488363581426,
-      "duration": 4.658488363581426,
-      "start_frame": 0,
-      "duration_frames": 74535,
-      "overlap": false,
-      "utterance_id": "8011-111754",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-111754.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.557992253109732,
-      "end_time": 12.049219798284248,
-      "duration": 6.491227545174516,
-      "start_frame": 88927,
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-      "overlap": false,
-      "utterance_id": "3723-171115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171115.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.464825566819368,
-      "end_time": 18.070162818790678,
-      "duration": 6.605337251971308,
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-      "overlap": true,
-      "utterance_id": "8011-117866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.131070957948438,
-      "end_time": 24.396216174300182,
-      "duration": 4.265145216351745,
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-      "duration_frames": 68242,
-      "overlap": false,
-      "utterance_id": "3723-171631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171631.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.057077120035082,
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-      "duration": 4.051493148685049,
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-      "duration_frames": 64823,
-      "overlap": false,
-      "utterance_id": "8011-291458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-291458.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.51267955472568,
-      "end_time": 32.0,
-      "duration": 2.487320445274321,
-      "start_frame": 472202,
-      "duration_frames": 39797,
-      "overlap": false,
-      "utterance_id": "3723-171631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171631.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 68242
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 23.123673469387754,
-      "start_time": 5.333115313528369
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_0.wav",
-      "duration": 0.2146485260770975,
-      "start_time": 8.327500219491201
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.3142868184008263,
-      "start_time": 7.859780323201961
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3723/laugh/0056.wav",
-      "duration": 1.36,
-      "start_time": 18.573636189945898,
-      "speaker_id": "3723"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8011/laugh/0039.wav",
-      "duration": 1.1096963725967528,
-      "start_time": 26.861101522690333,
-      "speaker_id": "8011"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3723/laugh/0052.wav",
-      "duration": 0.6663691785497525,
-      "start_time": 30.75296133793166,
-      "speaker_id": "3723"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018517.json b/conversations/conv_018517.json
deleted file mode 100644
index 8d1e8a9a57304c3d574e1d33256bbf6e6de1cde1..0000000000000000000000000000000000000000
--- a/conversations/conv_018517.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.0126853299601,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.1473133541176317,
-      "duration": 3.1473133541176317,
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-      "duration_frames": 50357,
-      "overlap": false,
-      "utterance_id": "2093-143264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143264.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.864717040676326,
-      "end_time": 10.137665896031116,
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-      "utterance_id": "2254-152826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152826.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.431584247666787,
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-      "duration": 3.9175021030272634,
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-      "utterance_id": "2093-143262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143262.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.626746498593516,
-      "end_time": 19.653879248602347,
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-      "duration_frames": 64434,
-      "overlap": false,
-      "utterance_id": "7134-67200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67200.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.36187524437296,
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-      "duration": 5.900643297411156,
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-      "duration_frames": 94410,
-      "overlap": false,
-      "utterance_id": "2254-152831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152831.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.07701413233697,
-      "end_time": 31.0126853299601,
-      "duration": 3.9356711976231287,
-      "start_frame": 433232,
-      "duration_frames": 62970,
-      "overlap": false,
-      "utterance_id": "7134-67233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "start_time": 1.1903865173872052
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
-      "duration": 0.6104081632653061,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2093/laugh/0015.wav",
-      "duration": 0.892562949928042,
-      "start_time": 0,
-      "speaker_id": "2093"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2093/cough/0082.wav",
-      "duration": 0.9250994343011383,
-      "start_time": 11.981459322536931,
-      "speaker_id": "2093"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7134/laugh/0100.wav",
-      "duration": 0.8,
-      "start_time": 18.66299607958844,
-      "speaker_id": "7134"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7134/cough/0108.wav",
-      "duration": 0.3885534306776357,
-      "start_time": 19.752577445288377,
-      "speaker_id": "7134"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7134/laugh/0112.wav",
-      "duration": 0.7253556520858545,
-      "start_time": 26.34855387315694,
-      "speaker_id": "7134"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018521.json b/conversations/conv_018521.json
deleted file mode 100644
index c2497e7270b7d6648bf4d99bbf271b6c492bafe4..0000000000000000000000000000000000000000
--- a/conversations/conv_018521.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3723-171631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171631.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.4663242295893735,
-      "end_time": 8.666027553892139,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
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-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.944540002741796,
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-      "overlap": false,
-      "utterance_id": "2334-150915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150915.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.799763308679085,
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-      "duration_frames": 58369,
-      "overlap": true,
-      "utterance_id": "3723-171115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171115.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3867-173236",
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-      "real_speaker_id": "3867",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.329655030317134,
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-      "utterance_id": "3723-171115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171115.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 58369
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.508937619733224,
-      "end_time": 32.0,
-      "duration": 3.4910623802667757,
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-      "utterance_id": "2334-150915",
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-      "real_speaker_id": "2334",
-      "position_frames": 85130
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3723/cough/0096.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2334/laugh/0030.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3723/laugh/0097.wav",
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-      "speaker_id": "3723"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018537.json b/conversations/conv_018537.json
deleted file mode 100644
index e8ed13e3d2b18ce451b7612f73fe1e008460590f..0000000000000000000000000000000000000000
--- a/conversations/conv_018537.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109876.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109876.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 77874
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145702.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.026127466346544,
-      "end_time": 32.0,
-      "duration": 0.9738725336534557,
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-      "utterance_id": "7839-109876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109876.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 177894
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "paralinguistic_events": [
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-      "start_time": 2.7547387289831975,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7839/laugh/0105.wav",
-      "duration": 0.9405634459879346,
-      "start_time": 13.654733944077945,
-      "speaker_id": "7839"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1898/laugh/0101.wav",
-      "duration": 1.4067099867673358,
-      "start_time": 21.605471587883475,
-      "speaker_id": "1898"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "7839"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018540.json b/conversations/conv_018540.json
deleted file mode 100644
index b2c9fd7c110e69b3c229afb534273ce183e146d0..0000000000000000000000000000000000000000
--- a/conversations/conv_018540.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.492267970136975,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.909415417722233,
-      "end_time": 8.956629410694443,
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-      "utterance_id": "3446-144019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3446-144019.flac |",
-      "real_speaker_id": "3446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.914159398199573,
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-      "duration": 6.627627569132104,
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-      "overlap": true,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.612924419089197,
-      "end_time": 21.390129023069022,
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-      "start_frame": 265806,
-      "duration_frames": 76435,
-      "overlap": false,
-      "utterance_id": "3446-144021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3446-144021.flac |",
-      "real_speaker_id": "3446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.515825470379994,
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-      "overlap": false,
-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 67738
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.170299818846186,
-      "end_time": 31.492267970136975,
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-      "start_frame": 466724,
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-      "utterance_id": "3446-144021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3446-144021.flac |",
-      "real_speaker_id": "3446",
-      "position_frames": 76435
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018547.json b/conversations/conv_018547.json
deleted file mode 100644
index ef3a9d2e14507c31684028f0431092e5a346d4df..0000000000000000000000000000000000000000
--- a/conversations/conv_018547.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-94876.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 3.908881541682658,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-88761.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "5717-61421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-61421.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.778371025536657,
-      "end_time": 26.90052494023995,
-      "duration": 4.122153914703294,
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-      "overlap": false,
-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 79633
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2269-88761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-88761.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 67963
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "paralinguistic_events": [
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-      "start_time": 10.536201211357506,
-      "speaker_id": "1715"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018551.json b/conversations/conv_018551.json
deleted file mode 100644
index 16325fee1d0cdc5f712db7eab59ec610d1a06b70..0000000000000000000000000000000000000000
--- a/conversations/conv_018551.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.673967064852363,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "4191-44438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-44438.flac |",
-      "real_speaker_id": "4191",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7463-99909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-99909.flac |",
-      "real_speaker_id": "7463",
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-      "segment_id": "seg0002",
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-      "utterance_id": "4191-69032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-69032.flac |",
-      "real_speaker_id": "4191",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.943856686613145,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1447-130551.flac |",
-      "real_speaker_id": "1447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-44438.flac |",
-      "real_speaker_id": "4191",
-      "position_frames": 57997
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "real_speaker_id": "7463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.904578758005744,
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-      "duration_frames": 28310,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-44438.flac |",
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-  ],
-  "background_events": [
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-      "start_time": 0.994346462406058,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1447/laugh/0055.wav",
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-      "start_time": 19.068300932260694,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4191/cough/0094.wav",
-      "duration": 0.7440994054457306,
-      "start_time": 30.324639742206386,
-      "speaker_id": "4191"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018556.json b/conversations/conv_018556.json
deleted file mode 100644
index 5310c868309a96e2955a499dca856c7c808c70b6..0000000000000000000000000000000000000000
--- a/conversations/conv_018556.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.827741906383816,
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-      "utterance_id": "2533-149939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.478758238806325,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
-      "real_speaker_id": "5036",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "2533-149939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 61243
-    },
-    {
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\ No newline at end of file
diff --git a/conversations/conv_018560.json b/conversations/conv_018560.json
deleted file mode 100644
index 45d6949b04088979f630f7a15534748c35663a92..0000000000000000000000000000000000000000
--- a/conversations/conv_018560.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_018576.json b/conversations/conv_018576.json
deleted file mode 100644
index 38d6a3422f14da90cad142f99357a55c4f383c24..0000000000000000000000000000000000000000
--- a/conversations/conv_018576.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_018583.json b/conversations/conv_018583.json
deleted file mode 100644
index e630a183eacda93a8e6f73936eea284f7f24f629..0000000000000000000000000000000000000000
--- a/conversations/conv_018583.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_018584.json b/conversations/conv_018584.json
deleted file mode 100644
index ba779f773231ab6ac7303cc2ad935439be83b694..0000000000000000000000000000000000000000
--- a/conversations/conv_018584.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7665-104979.flac |",
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-      "start_time": 30.88,
-      "speaker_id": "7294"
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-}
\ No newline at end of file
diff --git a/conversations/conv_018594.json b/conversations/conv_018594.json
deleted file mode 100644
index b9a0a0b71deea03db26f340c41a25a6911e29033..0000000000000000000000000000000000000000
--- a/conversations/conv_018594.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.86937222758648,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
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-      "utterance_id": "6583-66269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66269.flac |",
-      "real_speaker_id": "6583",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.36363778934092,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-48224.flac |",
-      "real_speaker_id": "6583",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_018595.json b/conversations/conv_018595.json
deleted file mode 100644
index ee6cc4ce6cd06ed8c1fde063da3b30826cdae687..0000000000000000000000000000000000000000
--- a/conversations/conv_018595.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16020.flac |",
-      "real_speaker_id": "4490",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-135042.flac |",
-      "real_speaker_id": "844",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "duration": 1.24,
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-    {
-      "event_class": "cough",
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-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "844"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018599.json b/conversations/conv_018599.json
deleted file mode 100644
index 3e23f5a6b00d51e668e053bfc1e5f84dd15c5694..0000000000000000000000000000000000000000
--- a/conversations/conv_018599.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.294324096835325,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2380-152158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
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-      "utterance_id": "2380-152158",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8262",
-      "position_frames": 57798
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_018604.json b/conversations/conv_018604.json
deleted file mode 100644
index b4556549e413abcc763dcb27e6dc3650e8325592..0000000000000000000000000000000000000000
--- a/conversations/conv_018604.json
+++ /dev/null
@@ -1,101 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7067-76047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7067-76047.flac |",
-      "real_speaker_id": "7067",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7067-76048.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_018605.json b/conversations/conv_018605.json
deleted file mode 100644
index 26ba9950ad2a20e07cc1a6f79f4a22bee11f1bd9..0000000000000000000000000000000000000000
--- a/conversations/conv_018605.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7147-80028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-138076.flac |",
-      "real_speaker_id": "444",
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-      "speaker_id": 2,
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-      "real_speaker_id": "1116",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-138080.flac |",
-      "real_speaker_id": "444",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_018608.json b/conversations/conv_018608.json
deleted file mode 100644
index 2d0a8550a1212d152ba981059177de1ef0c62530..0000000000000000000000000000000000000000
--- a/conversations/conv_018608.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_018612.json b/conversations/conv_018612.json
deleted file mode 100644
index 730e396c0fec618f23ba5daca435f7a8e110f8dc..0000000000000000000000000000000000000000
--- a/conversations/conv_018612.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-109507.flac |",
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-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_018624.json b/conversations/conv_018624.json
deleted file mode 100644
index 59d21cd6fc2276256ae9a2c97db70488fb271baa..0000000000000000000000000000000000000000
--- a/conversations/conv_018624.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176663.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 127409
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-      "segment_id": "seg0006",
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-      "end_time": 32.0,
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-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_018628.json b/conversations/conv_018628.json
deleted file mode 100644
index 5cf6ae8b9395115afe9f3ea82f96b347e460553d..0000000000000000000000000000000000000000
--- a/conversations/conv_018628.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1859-145703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9955.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 107108
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1859-145703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 84531
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54683.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018629.json b/conversations/conv_018629.json
deleted file mode 100644
index 38cde1d3aee91640e379171765e02708e3bcafde..0000000000000000000000000000000000000000
--- a/conversations/conv_018629.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-126296.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "559",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 63622
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51658.flac |",
-      "real_speaker_id": "2854",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "speaker_id": "8168"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018632.json b/conversations/conv_018632.json
deleted file mode 100644
index 90579806912bd47255bf70de7b3c300f8b9cf692..0000000000000000000000000000000000000000
--- a/conversations/conv_018632.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
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-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2552-132097.flac |",
-      "real_speaker_id": "2552",
-      "position_frames": 57733
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2625",
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-      "real_speaker_id": "2552",
-      "position_frames": 145300
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-    {
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-      "real_speaker_id": "6104",
-      "position_frames": 0
-    }
-  ],
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2625/laugh/0073.wav",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018639.json b/conversations/conv_018639.json
deleted file mode 100644
index 62adfe07db84821c7b175fb51f894c9884e0e543..0000000000000000000000000000000000000000
--- a/conversations/conv_018639.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.893967669689797,
-      "duration": 3.893967669689797,
-      "start_frame": 0,
-      "duration_frames": 62303,
-      "overlap": false,
-      "utterance_id": "6965-277899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-277899.flac |",
-      "real_speaker_id": "6965",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.236919527067596,
-      "end_time": 8.421110683535975,
-      "duration": 4.184191156468379,
-      "start_frame": 67790,
-      "duration_frames": 66947,
-      "overlap": false,
-      "utterance_id": "6965-277898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-277898.flac |",
-      "real_speaker_id": "6965",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.907821341840837,
-      "end_time": 13.143696727666917,
-      "duration": 4.2358753858260805,
-      "start_frame": 142525,
-      "duration_frames": 67774,
-      "overlap": false,
-      "utterance_id": "3947-13260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13260.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.545963759540644,
-      "end_time": 17.102099412090176,
-      "duration": 3.5561356525495302,
-      "start_frame": 216735,
-      "duration_frames": 56898,
-      "overlap": false,
-      "utterance_id": "6965-277899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-277899.flac |",
-      "real_speaker_id": "6965",
-      "position_frames": 62303
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.033804179927863,
-      "end_time": 22.944471944783903,
-      "duration": 4.910667764856039,
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-      "duration_frames": 78570,
-      "overlap": false,
-      "utterance_id": "6965-291718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-291718.flac |",
-      "real_speaker_id": "6965",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 22.575852269348076,
-      "end_time": 29.538140454142784,
-      "duration": 6.962288184794707,
-      "start_frame": 361213,
-      "duration_frames": 111396,
-      "overlap": true,
-      "utterance_id": "3947-13262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13262.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.263528315193632,
-      "end_time": 32.0,
-      "duration": 0.7364716848063679,
-      "start_frame": 500216,
-      "duration_frames": 11783,
-      "overlap": false,
-      "utterance_id": "6965-277898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-277898.flac |",
-      "real_speaker_id": "6965",
-      "position_frames": 66947
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
-      "duration": 4.140478435522356,
-      "start_time": 15.288881828845417
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
-      "duration": 0.6348979591836734,
-      "start_time": 18.23970250824511
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6965/laugh/0091.wav",
-      "duration": 1.44,
-      "start_time": 4.268217654720396,
-      "speaker_id": "6965"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3947/laugh/0016.wav",
-      "duration": 0.5326137608060124,
-      "start_time": 8.169955246743854,
-      "speaker_id": "3947"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6965/laugh/0071.wav",
-      "duration": 0.6624716094574555,
-      "start_time": 31.337528390542545,
-      "speaker_id": "6965"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018645.json b/conversations/conv_018645.json
deleted file mode 100644
index 2c3342fa05aef4f539ce6ea4e622f5b0288611fe..0000000000000000000000000000000000000000
--- a/conversations/conv_018645.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.626657926854167,
-      "duration": 4.626657926854167,
-      "start_frame": 0,
-      "duration_frames": 74026,
-      "overlap": false,
-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.7660677902972415,
-      "end_time": 10.910788178461875,
-      "duration": 6.144720388164632,
-      "start_frame": 76257,
-      "duration_frames": 98315,
-      "overlap": false,
-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 74026
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.923987716799315,
-      "end_time": 17.88194235260018,
-      "duration": 5.957954635800866,
-      "start_frame": 190783,
-      "duration_frames": 95327,
-      "overlap": false,
-      "utterance_id": "6553-82558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-82558.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.2124589133306,
-      "end_time": 22.416313085528735,
-      "duration": 4.203854172198134,
-      "start_frame": 291399,
-      "duration_frames": 67261,
-      "overlap": false,
-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.823169169376904,
-      "end_time": 29.493850675523827,
-      "duration": 6.670681506146924,
-      "start_frame": 365170,
-      "duration_frames": 106730,
-      "overlap": false,
-      "utterance_id": "6553-82558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-82558.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 95327
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.01852782481759,
-      "end_time": 32.0,
-      "duration": 1.981472175182411,
-      "start_frame": 480296,
-      "duration_frames": 31703,
-      "overlap": false,
-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 172341
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
-      "duration": 0.6236734693877551,
-      "start_time": 9.272242551509384
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
-      "duration": 0.254421768707483,
-      "start_time": 27.5058450642182
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_018649.json b/conversations/conv_018649.json
deleted file mode 100644
index f165508d1862bfc2a3e75b0d337e8a3cf4e4e63d..0000000000000000000000000000000000000000
--- a/conversations/conv_018649.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.328410240738684,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.325717085683488,
-      "duration": 5.325717085683488,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.791700515638813,
-      "end_time": 10.657407973221542,
-      "duration": 4.865707457582728,
-      "start_frame": 92667,
-      "duration_frames": 77851,
-      "overlap": false,
-      "utterance_id": "951-122301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.260040536989184,
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-      "duration": 6.459201179442271,
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-      "duration_frames": 103347,
-      "overlap": false,
-      "utterance_id": "951-122301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 77851
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.517798032689143,
-      "end_time": 24.159181969044695,
-      "duration": 5.641383936355551,
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-      "duration_frames": 90262,
-      "overlap": false,
-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 85211
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.52891430715136,
-      "end_time": 30.071219853431746,
-      "duration": 5.542305546280386,
-      "start_frame": 392462,
-      "duration_frames": 88676,
-      "overlap": false,
-      "utterance_id": "951-122301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 181198
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.74304183676088,
-      "end_time": 31.328410240738684,
-      "duration": 0.5853684039778031,
-      "start_frame": 491888,
-      "duration_frames": 9365,
-      "overlap": true,
-      "utterance_id": "7766-109658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-109658.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
-      "duration": 4.02508277643011,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7766/laugh/0080.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/951/laugh/0120.wav",
-      "duration": 1.02,
-      "start_time": 30.304344732442043,
-      "speaker_id": "951"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018652.json b/conversations/conv_018652.json
deleted file mode 100644
index f1517ea56caca6cb40c7693bba970ed100ca42f5..0000000000000000000000000000000000000000
--- a/conversations/conv_018652.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.205165052769868,
-      "duration": 6.205165052769868,
-      "start_frame": 0,
-      "duration_frames": 99282,
-      "overlap": false,
-      "utterance_id": "510-130560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130560.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.5123911495920375,
-      "end_time": 13.064315270086896,
-      "duration": 5.551924120494858,
-      "start_frame": 120198,
-      "duration_frames": 88830,
-      "overlap": false,
-      "utterance_id": "252-132011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-132011.flac |",
-      "real_speaker_id": "252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.937235848107171,
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-      "duration": 3.6325159709425465,
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-      "duration_frames": 58120,
-      "overlap": false,
-      "utterance_id": "277-127368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-127368.flac |",
-      "real_speaker_id": "277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.858465005266957,
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-      "duration_frames": 66045,
-      "overlap": false,
-      "utterance_id": "510-130101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130101.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.54448442925574,
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-      "duration": 6.305084780382617,
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-      "duration_frames": 100881,
-      "overlap": false,
-      "utterance_id": "252-140215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-140215.flac |",
-      "real_speaker_id": "252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.98399027094616,
-      "end_time": 32.0,
-      "duration": 2.0160097290538417,
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-      "duration_frames": 32256,
-      "overlap": false,
-      "utterance_id": "277-127368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-127368.flac |",
-      "real_speaker_id": "277",
-      "position_frames": 58120
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_8.wav",
-      "duration": 0.23709750566893423,
-      "start_time": 0.9913422677852441
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/510/laugh/0062.wav",
-      "duration": 1.4844227557182839,
-      "start_time": 6.220414946137153,
-      "speaker_id": "510"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/252/cough/0092.wav",
-      "duration": 1.4946287007486245,
-      "start_time": 10.192219232049116,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/277/laugh/0095.wav",
-      "duration": 0.6716406720109835,
-      "start_time": 14.867913787668328,
-      "speaker_id": "277"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018653.json b/conversations/conv_018653.json
deleted file mode 100644
index b8e5fe84cef74b465abf69d35a5810209c1d808f..0000000000000000000000000000000000000000
--- a/conversations/conv_018653.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
-      "real_speaker_id": "497",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3521-7591.flac |",
-      "real_speaker_id": "3521",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.069400001787322,
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_018665.json b/conversations/conv_018665.json
deleted file mode 100644
index 67febcf708824cd96e5f3a64868620675d5c2571..0000000000000000000000000000000000000000
--- a/conversations/conv_018665.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 93301
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3534.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 63045
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_018669.json b/conversations/conv_018669.json
deleted file mode 100644
index 4ad30b8b26249a1e878b9d07f2befda623b979df..0000000000000000000000000000000000000000
--- a/conversations/conv_018669.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
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-      "real_speaker_id": "7139",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_018673.json b/conversations/conv_018673.json
deleted file mode 100644
index 8917cae20f061231c96c88d250d5ca9043caeaf0..0000000000000000000000000000000000000000
--- a/conversations/conv_018673.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
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-      "real_speaker_id": "1347",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1347",
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-      "real_speaker_id": "5019",
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-    {
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_018678.json b/conversations/conv_018678.json
deleted file mode 100644
index 228c5245193d68ea142535e8d317a021e75ca60b..0000000000000000000000000000000000000000
--- a/conversations/conv_018678.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.734156801042797,
-  "num_speakers": 3,
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-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6115-58778.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6115-58433.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_018681.json b/conversations/conv_018681.json
deleted file mode 100644
index 743a738c6ed1612eade757cba2a737b7e74cf1d0..0000000000000000000000000000000000000000
--- a/conversations/conv_018681.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25950.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7926-254949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254949.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.11539149279317,
-      "end_time": 26.755361641154472,
-      "duration": 6.639970148361303,
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-      "duration_frames": 106239,
-      "overlap": true,
-      "utterance_id": "6676-71414",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-71414.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.938466307261177,
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "duration": 0.96,
-      "start_time": 0,
-      "speaker_id": "4799"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6676/cough/0061.wav",
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-      "start_time": 30.84,
-      "speaker_id": "4799"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018686.json b/conversations/conv_018686.json
deleted file mode 100644
index f69396b3dfa3aadf69b1915c5691c4328b663104..0000000000000000000000000000000000000000
--- a/conversations/conv_018686.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.02942536332867,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "7739-8592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-8592.flac |",
-      "real_speaker_id": "7739",
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-      "real_speaker_id": "3290",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "198-209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-209.flac |",
-      "real_speaker_id": "198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.367470812389648,
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-      "utterance_id": "7739-8592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-8592.flac |",
-      "real_speaker_id": "7739",
-      "position_frames": 55665
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "198-126831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-126831.flac |",
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-      "position_frames": 72919
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_018690.json b/conversations/conv_018690.json
deleted file mode 100644
index ca55e2405c768f4adcb61308a817c9bd40198c5f..0000000000000000000000000000000000000000
--- a/conversations/conv_018690.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "5445-21280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21280.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.102655750366607,
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-      "utterance_id": "5054-18527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-18527.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 0
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-      "utterance_id": "4434-73957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73957.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "4434-73958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73958.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 21.04567957436822,
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-      "position_frames": 49173
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 55555,
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-      "utterance_id": "4434-73958",
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-      "position_frames": 55322
-    },
-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "5445-21282",
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-      "position_frames": 0
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-  "foreground_events": [
-    {
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-      "speaker_id": "5445"
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-}
\ No newline at end of file
diff --git a/conversations/conv_018697.json b/conversations/conv_018697.json
deleted file mode 100644
index d2c2a11c39aa27f4b47af83421f27aaa44bef75f..0000000000000000000000000000000000000000
--- a/conversations/conv_018697.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_018700.json b/conversations/conv_018700.json
deleted file mode 100644
index 669b332689ac25893abcf6f72056c74d7e00c8d0..0000000000000000000000000000000000000000
--- a/conversations/conv_018700.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_018716.json b/conversations/conv_018716.json
deleted file mode 100644
index b0eb51ace20523b9f1e804bc80fb4b28916773a2..0000000000000000000000000000000000000000
--- a/conversations/conv_018716.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135059.flac |",
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-      "real_speaker_id": "445",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_018717.json b/conversations/conv_018717.json
deleted file mode 100644
index dc49905d105a778e2f2914150ad5c945d1fbe3c5..0000000000000000000000000000000000000000
--- a/conversations/conv_018717.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-54099.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_018720.json b/conversations/conv_018720.json
deleted file mode 100644
index adc1b290b40458ee7056195c83ab34a2b7d43e58..0000000000000000000000000000000000000000
--- a/conversations/conv_018720.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5095343868151767,
-      "duration": 3.5095343868151767,
-      "start_frame": 0,
-      "duration_frames": 56152,
-      "overlap": false,
-      "utterance_id": "5910-53143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53143.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8925000616480534,
-      "end_time": 10.535781494824121,
-      "duration": 6.6432814331760675,
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-      "duration_frames": 106292,
-      "overlap": false,
-      "utterance_id": "3330-170956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3330-170956.flac |",
-      "real_speaker_id": "3330",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.011668133963822,
-      "end_time": 17.387332886929194,
-      "duration": 6.375664752965372,
-      "start_frame": 176186,
-      "duration_frames": 102010,
-      "overlap": false,
-      "utterance_id": "366-127793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-127793.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.18270603437102,
-      "end_time": 23.643357517976995,
-      "duration": 5.460651483605976,
-      "start_frame": 290923,
-      "duration_frames": 87370,
-      "overlap": false,
-      "utterance_id": "3330-172156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3330-172156.flac |",
-      "real_speaker_id": "3330",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.755212064378465,
-      "end_time": 29.96287999200012,
-      "duration": 5.207667927621652,
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-      "overlap": false,
-      "utterance_id": "5910-53143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53143.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 56152
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.64012110327491,
-      "end_time": 32.0,
-      "duration": 1.359878896725089,
-      "start_frame": 490241,
-      "duration_frames": 21758,
-      "overlap": false,
-      "utterance_id": "3330-170956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3330-170956.flac |",
-      "real_speaker_id": "3330",
-      "position_frames": 106292
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 11.35028598934062,
-      "start_time": 12.27832373340408
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5910/laugh/0081.wav",
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-      "start_time": 3.607081899226812,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5910/cough/0013.wav",
-      "duration": 0.7730368008394342,
-      "start_time": 0,
-      "speaker_id": "5910"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5910/laugh/0065.wav",
-      "duration": 0.6015047060157586,
-      "start_time": 26.45466807304503,
-      "speaker_id": "5910"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3330/laugh/0090.wav",
-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "3330"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018736.json b/conversations/conv_018736.json
deleted file mode 100644
index 2de820a415e14d4b01d6c653bd7a7dba3ceaa739..0000000000000000000000000000000000000000
--- a/conversations/conv_018736.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "596-139612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-139612.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.799300486702927,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97467.flac |",
-      "real_speaker_id": "7436",
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.1955479052043,
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-      "utterance_id": "596-127685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.57043953486105,
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-      "duration_frames": 69131,
-      "overlap": false,
-      "utterance_id": "7436-97461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97461.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.38297303810868,
-      "end_time": 28.2205660613011,
-      "duration": 5.8375930231924205,
-      "start_frame": 358127,
-      "duration_frames": 93401,
-      "overlap": false,
-      "utterance_id": "596-127685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 84130
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.59525917523411,
-      "end_time": 32.0,
-      "duration": 3.4047408247658915,
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-      "duration_frames": 54475,
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-      "utterance_id": "596-127685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 177531
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/596/cough/0014.wav",
-      "duration": 0.8,
-      "start_time": 11.309247917105743,
-      "speaker_id": "596"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7436/laugh/0026.wav",
-      "duration": 1.36,
-      "start_time": 22.112361873173334,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/596/cough/0093.wav",
-      "duration": 0.7780938021678605,
-      "start_time": 28.274257450504283,
-      "speaker_id": "596"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018740.json b/conversations/conv_018740.json
deleted file mode 100644
index d65ed6729d5da90f654504c4ffe511a3ff3a18df..0000000000000000000000000000000000000000
--- a/conversations/conv_018740.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.242927601535023,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "25-88353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-88353.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-123319.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-123319.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 100523
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2056/laugh/0086.wav",
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-      "speaker_id": "2056"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018741.json b/conversations/conv_018741.json
deleted file mode 100644
index 62140a2670a73c40a9228af5b84bed3c86286cb1..0000000000000000000000000000000000000000
--- a/conversations/conv_018741.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.749483466573523,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "duration": 6.171035552736534,
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-      "utterance_id": "4660-25046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25046.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5463-39173",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_018757.json b/conversations/conv_018757.json
deleted file mode 100644
index 73e37cdae01bcee16b627329a886c33161f8ab90..0000000000000000000000000000000000000000
--- a/conversations/conv_018757.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.62805545102196,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.873771629474064,
-      "duration": 3.873771629474064,
-      "start_frame": 0,
-      "duration_frames": 61980,
-      "overlap": false,
-      "utterance_id": "5984-56840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56840.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.5579244216128565,
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-      "duration": 5.6252415173113075,
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-      "duration_frames": 90003,
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-      "utterance_id": "404-132015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132015.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 11.154440437370695,
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-      "utterance_id": "5984-56840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56840.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 61980
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "404-132013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132013.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.590498763657692,
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-      "utterance_id": "5984-56840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56840.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 164153
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.137335681242483,
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-      "duration": 1.4907197697794778,
-      "start_frame": 482197,
-      "duration_frames": 23851,
-      "overlap": true,
-      "utterance_id": "404-132015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132015.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 90003
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-    {
-      "event_class": "Blender",
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-      "event_class": "cough",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/404/laugh/0113.wav",
-      "duration": 1.56,
-      "start_time": 28.411492966419456,
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-      "event_class": "cough",
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-      "speaker_id": "404"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018761.json b/conversations/conv_018761.json
deleted file mode 100644
index bef3afc299ea30d8090b5f502d9c4cfcbe2896d2..0000000000000000000000000000000000000000
--- a/conversations/conv_018761.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3905-149791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3905-172165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-172165.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.617531458476776,
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 83336
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "start_time": 28.748066934427932,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/laugh/0038.wav",
-      "duration": 0.6078440818596851,
-      "start_time": 31.392155918140315,
-      "speaker_id": "4428"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018777.json b/conversations/conv_018777.json
deleted file mode 100644
index 76202f3f55b25a60ab8b54b78413979a92481ddf..0000000000000000000000000000000000000000
--- a/conversations/conv_018777.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.150596265616333,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "844",
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018782.json b/conversations/conv_018782.json
deleted file mode 100644
index 4204dbfa5a027968db9841835946b55c9f665ed1..0000000000000000000000000000000000000000
--- a/conversations/conv_018782.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-69550.flac |",
-      "real_speaker_id": "6099",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 18.55724607431098,
-      "speaker_id": "3032"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018783.json b/conversations/conv_018783.json
deleted file mode 100644
index 1cf1d4d47f4571d7987fdbf222b5b434dbd45708..0000000000000000000000000000000000000000
--- a/conversations/conv_018783.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.434719064632706,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2487-162474",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 14.441162945971314,
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-      "utterance_id": "2487-162474",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 91479
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.293199513438708,
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-      "duration": 5.836802018451992,
-      "start_frame": 340691,
-      "duration_frames": 93388,
-      "overlap": false,
-      "utterance_id": "1841-179183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-179183.flac |",
-      "real_speaker_id": "1841",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.18123321817293,
-      "end_time": 31.434719064632706,
-      "duration": 4.253485846459775,
-      "start_frame": 434899,
-      "duration_frames": 68055,
-      "overlap": true,
-      "utterance_id": "4545-9166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 109553
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-      "start_time": 0.8311239774728862
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "2487"
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "4545"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018785.json b/conversations/conv_018785.json
deleted file mode 100644
index 22087d3a2dd95a0b017a0523fe1db343753fde2c..0000000000000000000000000000000000000000
--- a/conversations/conv_018785.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.861878515426593,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6836-76549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-76549.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-3072.flac |",
-      "real_speaker_id": "5278",
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-      "start_time": 14.177966280099255,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6836-61803",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61803.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.958210252219835,
-      "end_time": 31.861878515426593,
-      "duration": 6.9036682632067565,
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-      "utterance_id": "2532-157475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-157475.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
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-      "event_class": "Running_water",
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-      "speaker_id": "2532"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018793.json b/conversations/conv_018793.json
deleted file mode 100644
index 98af56f91a14b427795991af449a4aa6ad1e460a..0000000000000000000000000000000000000000
--- a/conversations/conv_018793.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4894-7788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-32846.flac |",
-      "real_speaker_id": "753",
-      "position_frames": 0
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-      "real_speaker_id": "4894",
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-      "segment_id": "seg0003",
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-      "position_frames": 153998
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-32846.flac |",
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-      "position_frames": 130672
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-32846.flac |",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018794.json b/conversations/conv_018794.json
deleted file mode 100644
index e22075f7e80007bf05c5d74637534f480b171d27..0000000000000000000000000000000000000000
--- a/conversations/conv_018794.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "7117-86732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86732.flac |",
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-    {
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23955.flac |",
-      "real_speaker_id": "4196",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018798.json b/conversations/conv_018798.json
deleted file mode 100644
index c4292db3215cfe274afc1f15f34f22e9cb94269b..0000000000000000000000000000000000000000
--- a/conversations/conv_018798.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.782084867113046,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24732.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_018802.json b/conversations/conv_018802.json
deleted file mode 100644
index 1df5ae24282e46ba4c490a42da90e422443784a3..0000000000000000000000000000000000000000
--- a/conversations/conv_018802.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_018805.json b/conversations/conv_018805.json
deleted file mode 100644
index 7c09458f58256e99e7df3fb645fd5cb7937d124b..0000000000000000000000000000000000000000
--- a/conversations/conv_018805.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
-      "real_speaker_id": "8422",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5635-58137.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_018809.json b/conversations/conv_018809.json
deleted file mode 100644
index 10eb6a63639b5509a2a0980255c83af95a7086e6..0000000000000000000000000000000000000000
--- a/conversations/conv_018809.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14897.flac |",
-      "real_speaker_id": "4381",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.345982450010514,
-      "end_time": 32.0,
-      "duration": 4.6540175499894865,
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-      "overlap": false,
-      "utterance_id": "8396-120281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120281.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-      "speaker_id": "8396"
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018813.json b/conversations/conv_018813.json
deleted file mode 100644
index 193fe727087a8308c18067030f43830caa7ae70e..0000000000000000000000000000000000000000
--- a/conversations/conv_018813.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.415840001564855,
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-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 86653
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-153036.flac |",
-      "real_speaker_id": "1566",
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-      "speaker_id": 2,
-      "start_time": 22.250340648717508,
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-      "utterance_id": "7585-96245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 84378
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.84657288390799,
-      "end_time": 32.0,
-      "duration": 2.1534271160920113,
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-      "duration_frames": 34454,
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-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 147353
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.147584539252617,
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\ No newline at end of file
diff --git a/conversations/conv_018814.json b/conversations/conv_018814.json
deleted file mode 100644
index 315c755150527a4e0c50fa045cdf3a7bbef2f95d..0000000000000000000000000000000000000000
--- a/conversations/conv_018814.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "6206-14960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14960.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 5.3006240568281235,
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-      "real_speaker_id": "6206",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-276146.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14960.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 146648
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7307-91998",
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-      "real_speaker_id": "7307",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6206/laugh/0108.wav",
-      "duration": 1.8718759495002062,
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-      "speaker_id": "6206"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018825.json b/conversations/conv_018825.json
deleted file mode 100644
index f1c0c6c8c38939e65abb1c622b7174446f98a47b..0000000000000000000000000000000000000000
--- a/conversations/conv_018825.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1690-142293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "1690",
-      "position_frames": 51431
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 132233
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127083.flac |",
-      "real_speaker_id": "3503",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.952964128018913,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 223923
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-    {
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-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.39724741861405,
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-      "duration": 0.6027525813859498,
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-      "utterance_id": "3503-127083",
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-      "real_speaker_id": "3503",
-      "position_frames": 68343
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3503/cough/0080.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1690/laugh/0114.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7398/laugh/0130.wav",
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-      "start_time": 31.18301933872704,
-      "speaker_id": "7398"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018828.json b/conversations/conv_018828.json
deleted file mode 100644
index 16552a1491c273f587b8f2a8ddf220e780d7c88e..0000000000000000000000000000000000000000
--- a/conversations/conv_018828.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_018829.json b/conversations/conv_018829.json
deleted file mode 100644
index f8b0861bdc472b4d0d9a98df45324e4a67f43090..0000000000000000000000000000000000000000
--- a/conversations/conv_018829.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "real_speaker_id": "6828",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
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-      "position_frames": 138796
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-  "foreground_events": [
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-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_018833.json b/conversations/conv_018833.json
deleted file mode 100644
index 1c6e6138246e2223be2682db0214da6717035e85..0000000000000000000000000000000000000000
--- a/conversations/conv_018833.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2292",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
-      "real_speaker_id": "6359",
-      "position_frames": 59603
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018838.json b/conversations/conv_018838.json
deleted file mode 100644
index 9320018222a35ca8d0d6826304ba28cb2b5f1c03..0000000000000000000000000000000000000000
--- a/conversations/conv_018838.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1456-139733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-139733.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.2384453170396075,
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-      "real_speaker_id": "4687",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-136846.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018843.json b/conversations/conv_018843.json
deleted file mode 100644
index 7beca38445e1afe53fb47f78c0393a7cf01d380e..0000000000000000000000000000000000000000
--- a/conversations/conv_018843.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.497592988535914,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_018844.json b/conversations/conv_018844.json
deleted file mode 100644
index 361e1c9042f78499f201f05352ab7956694f704c..0000000000000000000000000000000000000000
--- a/conversations/conv_018844.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_018848.json b/conversations/conv_018848.json
deleted file mode 100644
index 7291e62a44e2dc2821d8910024abf250c1a78670..0000000000000000000000000000000000000000
--- a/conversations/conv_018848.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_018852.json b/conversations/conv_018852.json
deleted file mode 100644
index 2d13929b302e6304c84e5a3d37f2cdac56e39b38..0000000000000000000000000000000000000000
--- a/conversations/conv_018852.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
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-      "start_time": 22.638548047464923,
-      "speaker_id": "2002"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018855.json b/conversations/conv_018855.json
deleted file mode 100644
index 39142152db5fc527a4c3a61cbb93b8e5e873e23f..0000000000000000000000000000000000000000
--- a/conversations/conv_018855.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "event_class": "cough",
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-      "speaker_id": "7585"
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-}
\ No newline at end of file
diff --git a/conversations/conv_018864.json b/conversations/conv_018864.json
deleted file mode 100644
index 0fc99e6a50db42afce5eb66a977d44ea0a607758..0000000000000000000000000000000000000000
--- a/conversations/conv_018864.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-5330.flac |",
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-      "position_frames": 72928
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-}
\ No newline at end of file
diff --git a/conversations/conv_018868.json b/conversations/conv_018868.json
deleted file mode 100644
index 68a5aca14fb76c1e99a7adf1e50660a11c000018..0000000000000000000000000000000000000000
--- a/conversations/conv_018868.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "664",
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_018872.json b/conversations/conv_018872.json
deleted file mode 100644
index 2c3440a6fd9a0c98db9914cd31a5cd0d13fd2d23..0000000000000000000000000000000000000000
--- a/conversations/conv_018872.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/846-130986.flac |",
-      "real_speaker_id": "846",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_018887.json b/conversations/conv_018887.json
deleted file mode 100644
index 0df710c73e8d91105e670688b077d758578d8b20..0000000000000000000000000000000000000000
--- a/conversations/conv_018887.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.8807295593528,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.365538519449252,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123504.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123504.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 73480
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "302-123504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123504.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 182225
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
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\ No newline at end of file
diff --git a/conversations/conv_018891.json b/conversations/conv_018891.json
deleted file mode 100644
index ef462cb044ba2bc263a8d8012c1a448a64e04993..0000000000000000000000000000000000000000
--- a/conversations/conv_018891.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "1341",
-      "position_frames": 0
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-      "real_speaker_id": "1646",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
-      "real_speaker_id": "1341",
-      "position_frames": 55011
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "speaker_id": "1341"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018901.json b/conversations/conv_018901.json
deleted file mode 100644
index 8cd1840a4011e64ca0ba1466892124cdba2e1a70..0000000000000000000000000000000000000000
--- a/conversations/conv_018901.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "speaker_id": 2,
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-      "utterance_id": "2573-186232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-186232.flac |",
-      "real_speaker_id": "2573",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
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-      "utterance_id": "3819-134146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134146.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
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-      "real_speaker_id": "1290",
-      "position_frames": 92998
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.77451161260753,
-      "end_time": 32.0,
-      "duration": 1.2254883873924705,
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-      "utterance_id": "1290-135762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 173668
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3819/cough/0016.wav",
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-      "speaker_id": "3819"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018906.json b/conversations/conv_018906.json
deleted file mode 100644
index 7ca796217fbc6999def11e587cfa82b3cdb71d75..0000000000000000000000000000000000000000
--- a/conversations/conv_018906.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_018910.json b/conversations/conv_018910.json
deleted file mode 100644
index a34bc35a80451aa9039e4713ab8bc7d8223d62a9..0000000000000000000000000000000000000000
--- a/conversations/conv_018910.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_018917.json b/conversations/conv_018917.json
deleted file mode 100644
index d3923a14952510e7a5bb1bc489aa8c0248d92c0d..0000000000000000000000000000000000000000
--- a/conversations/conv_018917.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_018921.json b/conversations/conv_018921.json
deleted file mode 100644
index 5c6827be50cab23f5e8020ed9637cd566d0c71db..0000000000000000000000000000000000000000
--- a/conversations/conv_018921.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 147892
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "5487-41940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-41940.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 57419
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 12.421341255068935,
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-}
\ No newline at end of file
diff --git a/conversations/conv_018937.json b/conversations/conv_018937.json
deleted file mode 100644
index 8bd8368fa803055fb5fef90847b6bb8af065d10d..0000000000000000000000000000000000000000
--- a/conversations/conv_018937.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.955684260248441,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "6211-62844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-62844.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.861590353220897,
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-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 156749
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.44117309258816,
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-      "duration": 5.5588269074118415,
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-      "duration_frames": 88941,
-      "overlap": false,
-      "utterance_id": "5977-46900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 59522
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1006/laugh/0080.wav",
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-      "duration": 1.14,
-      "start_time": 13.63093502652872,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "5977"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018940.json b/conversations/conv_018940.json
deleted file mode 100644
index 11869171f839ccf9842945386c9c17c6c329b790..0000000000000000000000000000000000000000
--- a/conversations/conv_018940.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1724-395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1724-395.flac |",
-      "real_speaker_id": "1724",
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-    {
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-      "start_time": 5.043334683012364,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123272.flac |",
-      "real_speaker_id": "886",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1724-395.flac |",
-      "real_speaker_id": "1724",
-      "position_frames": 73487
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123272.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 59744
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.75242334194369,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.7757219433445,
-      "end_time": 32.0,
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-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
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-      "position_frames": 65184
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
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-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "886"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018947.json b/conversations/conv_018947.json
deleted file mode 100644
index c05d23fec6607bc4ce5c78a7aff1e43cc0117705..0000000000000000000000000000000000000000
--- a/conversations/conv_018947.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128278.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7046-83701",
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-    {
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-      "real_speaker_id": "2574",
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-    {
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-      "start_time": 23.141868906105902,
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-      "real_speaker_id": "7046",
-      "position_frames": 94913
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 2.8278648255323553,
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-      "utterance_id": "1760-143006",
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-      "real_speaker_id": "1760",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1760/laugh/0111.wav",
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-      "start_time": 30.309909116247255,
-      "speaker_id": "1760"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018951.json b/conversations/conv_018951.json
deleted file mode 100644
index 8499e6e0f7e33911c4c3f3f4ce0135273cb2360f..0000000000000000000000000000000000000000
--- a/conversations/conv_018951.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5077-38099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38099.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_018956.json b/conversations/conv_018956.json
deleted file mode 100644
index 2e3b15c1c33b0879f75dce91de0ab8a9c6c53398..0000000000000000000000000000000000000000
--- a/conversations/conv_018956.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7199",
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\ No newline at end of file
diff --git a/conversations/conv_018960.json b/conversations/conv_018960.json
deleted file mode 100644
index 70cd356308ac9eefcceb85064593c5a6af31573f..0000000000000000000000000000000000000000
--- a/conversations/conv_018960.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_018976.json b/conversations/conv_018976.json
deleted file mode 100644
index 1b783db6f7a1b18086f292504378b95ec092bd46..0000000000000000000000000000000000000000
--- a/conversations/conv_018976.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
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-      "start_time": 30.22120930082171,
-      "speaker_id": "83"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018982.json b/conversations/conv_018982.json
deleted file mode 100644
index 555f9831d59c1420b66fcf8e65e0cdbde9f58315..0000000000000000000000000000000000000000
--- a/conversations/conv_018982.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.53966304602873,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.9533703634040984,
-      "duration": 3.9533703634040984,
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-      "overlap": false,
-      "utterance_id": "779-126735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-126735.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.738365600176608,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68369.flac |",
-      "real_speaker_id": "6492",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.31607266538137,
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-      "utterance_id": "779-123709",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123709.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.25064916405858,
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-      "utterance_id": "6492-68353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68353.flac |",
-      "real_speaker_id": "6492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.85225235288721,
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-      "duration": 3.974870507591014,
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-      "overlap": true,
-      "utterance_id": "779-126735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-126735.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 63253
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.78748318131679,
-      "end_time": 31.53966304602873,
-      "duration": 4.752179864711936,
-      "start_frame": 428599,
-      "duration_frames": 76034,
-      "overlap": false,
-      "utterance_id": "551-129024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/779/laugh/0069.wav",
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-    {
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-      "duration": 0.86,
-      "start_time": 21.48479254825156,
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-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "551"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018983.json b/conversations/conv_018983.json
deleted file mode 100644
index b8b536acf7cd2570852d17f47d691082b2133796..0000000000000000000000000000000000000000
--- a/conversations/conv_018983.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61803.flac |",
-      "real_speaker_id": "6836",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.505357781395102,
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-      "duration_frames": 107773,
-      "overlap": false,
-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 82591
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.137755066254016,
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-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 54482
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.81811233663584,
-      "end_time": 32.0,
-      "duration": 3.1818876633641615,
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-      "duration_frames": 50910,
-      "overlap": false,
-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 190364
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 14.713700198213997,
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
-      "duration": 2.5377304242777674,
-      "start_time": 1.38288870170387
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_018992.json b/conversations/conv_018992.json
deleted file mode 100644
index e7eecfa992372fa8cfd4436a3027c59b77f913ed..0000000000000000000000000000000000000000
--- a/conversations/conv_018992.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3526-176651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3526-176651.flac |",
-      "real_speaker_id": "3526",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "2162-181961",
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-      "real_speaker_id": "3526",
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-    {
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-      "real_speaker_id": "4411",
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 17.605145268518683,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2162/laugh/0111.wav",
-      "duration": 1.28,
-      "start_time": 30.60573921810219,
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_018995.json b/conversations/conv_018995.json
deleted file mode 100644
index 7636b639d14c6fa047bb6c1bbe8c16250098afac..0000000000000000000000000000000000000000
--- a/conversations/conv_018995.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "5513-39477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39477.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/28-12332.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_018999.json b/conversations/conv_018999.json
deleted file mode 100644
index 661d18e4dbea17f8c1a4bf9686fcd0a1fa8827dd..0000000000000000000000000000000000000000
--- a/conversations/conv_018999.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.985380363860841,
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-      "real_speaker_id": "3584",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-287369.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "3584",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019003.json b/conversations/conv_019003.json
deleted file mode 100644
index fd3bbfdb2879d333ba26cc0e02271e0b18bffcc1..0000000000000000000000000000000000000000
--- a/conversations/conv_019003.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
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-      "position_frames": 86281
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "1636",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3465-20021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3465-20021.flac |",
-      "real_speaker_id": "3465",
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\ No newline at end of file
diff --git a/conversations/conv_019014.json b/conversations/conv_019014.json
deleted file mode 100644
index 81bc482b6f3b348d94ebf04b0ffdaecc2083c5ff..0000000000000000000000000000000000000000
--- a/conversations/conv_019014.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-105383.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_019015.json b/conversations/conv_019015.json
deleted file mode 100644
index 0c9f09df3a58089e234330210f18b0b948e6f962..0000000000000000000000000000000000000000
--- a/conversations/conv_019015.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-    {
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-      "real_speaker_id": "3738",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176680.flac |",
-      "real_speaker_id": "3738",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "duration": 1.6370346753169702,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 0.84,
-      "start_time": 7.350262784840347,
-      "speaker_id": "7424"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019019.json b/conversations/conv_019019.json
deleted file mode 100644
index 3c79216d5dd0f6ac5af0625fa83127642fb37940..0000000000000000000000000000000000000000
--- a/conversations/conv_019019.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
-      "real_speaker_id": "598",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127704.flac |",
-      "real_speaker_id": "598",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.355733785002066,
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-      "utterance_id": "4667-92224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92224.flac |",
-      "real_speaker_id": "4667",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.833407639292727,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92224.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 179193
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.23030058141461,
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-      "duration": 4.76969941858539,
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-      "utterance_id": "598-127703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
-      "real_speaker_id": "598",
-      "position_frames": 91820
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019023.json b/conversations/conv_019023.json
deleted file mode 100644
index 781f1caa771c56e7a43ca8e0d5bd60237449025c..0000000000000000000000000000000000000000
--- a/conversations/conv_019023.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.352355187085656,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6308-68358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68358.flac |",
-      "real_speaker_id": "6308",
-      "position_frames": 0
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-      "utterance_id": "6308-68359",
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-      "real_speaker_id": "6308",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "6308-68359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
-      "real_speaker_id": "6308",
-      "position_frames": 54085
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.173279567745475,
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-      "utterance_id": "2967-4901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4901.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 24.802630728514263,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4901.flac |",
-      "real_speaker_id": "2967",
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\ No newline at end of file
diff --git a/conversations/conv_019028.json b/conversations/conv_019028.json
deleted file mode 100644
index f597e4819e09000b75ef70f7a59997bc4ad3d38e..0000000000000000000000000000000000000000
--- a/conversations/conv_019028.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157880.flac |",
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-      "real_speaker_id": "6426",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157471.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157471.flac |",
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019035.json b/conversations/conv_019035.json
deleted file mode 100644
index 1b46e34d7376b7d0c1591a1cf0213c6268daf0cb..0000000000000000000000000000000000000000
--- a/conversations/conv_019035.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "8112",
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-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019039.json b/conversations/conv_019039.json
deleted file mode 100644
index 194f0aa85bb4c1537d65420d64413b16b336b8ca..0000000000000000000000000000000000000000
--- a/conversations/conv_019039.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.283566479717185,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281512.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
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-      "utterance_id": "4442-2868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 102129
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.835040558938374,
-      "end_time": 25.950429722589902,
-      "duration": 6.1153891636515265,
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-      "duration_frames": 97846,
-      "overlap": false,
-      "utterance_id": "1094-157767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157767.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.389836974237575,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157768.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
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-  "background_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_019042.json b/conversations/conv_019042.json
deleted file mode 100644
index 07c62de912797cc7ce26183ec2db650a14d59f4b..0000000000000000000000000000000000000000
--- a/conversations/conv_019042.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "1474-128276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128276.flac |",
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-      "real_speaker_id": "3554",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128276.flac |",
-      "real_speaker_id": "1474",
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-      "real_speaker_id": "1474",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.052048208412657,
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-      "utterance_id": "3554-172175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-172175.flac |",
-      "real_speaker_id": "3554",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7318-96151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019043.json b/conversations/conv_019043.json
deleted file mode 100644
index 7adb5a20dcf2b124ce3955676dd5bc6978e8a97c..0000000000000000000000000000000000000000
--- a/conversations/conv_019043.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-109180.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7142.flac |",
-      "real_speaker_id": "3179",
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-    {
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-      "utterance_id": "3650-168646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168646.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "7938-109179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-109179.flac |",
-      "real_speaker_id": "7938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3179-7133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7133.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "7938",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "start_time": 31.166833591513985,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3650/laugh/0088.wav",
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-      "duration": 1.130728092711531,
-      "start_time": 30.032758328496577,
-      "speaker_id": "3650"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019054.json b/conversations/conv_019054.json
deleted file mode 100644
index f14ef92d6af8767a0ef572a45bbd02592d987530..0000000000000000000000000000000000000000
--- a/conversations/conv_019054.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "976-131095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/976-131095.flac |",
-      "real_speaker_id": "976",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-137572.flac |",
-      "real_speaker_id": "1116",
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-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.964029584514005,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 63237
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-      "segment_id": "seg0004",
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-      "utterance_id": "1116-132851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132851.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.61835021418645,
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-      "utterance_id": "976-172189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/976-172189.flac |",
-      "real_speaker_id": "976",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.30423691952034,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 134711
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5217/cough/0016.wav",
-      "duration": 0.8886447998089544,
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-      "speaker_id": "5217"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019058.json b/conversations/conv_019058.json
deleted file mode 100644
index cd5a2c6d36c21edd0902c3a2987eb1c3134f84e5..0000000000000000000000000000000000000000
--- a/conversations/conv_019058.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.21115640703326,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.353280413249503,
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-      "overlap": false,
-      "utterance_id": "7766-109658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-109658.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.66994447955285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-109658.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 85652
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 89312
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_019062.json b/conversations/conv_019062.json
deleted file mode 100644
index 7c42e9f35bdc4f3580b13d09675bbbeda44fd3b9..0000000000000000000000000000000000000000
--- a/conversations/conv_019062.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53261.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53261.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 94985
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-      "segment_id": "seg0003",
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-      "utterance_id": "1271-133279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-133279.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "976",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6947-53263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53263.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
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-  "background_events": [],
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019069.json b/conversations/conv_019069.json
deleted file mode 100644
index 395fa8e54c2affc1fdf5b291d3b4a0c3bd75e9a7..0000000000000000000000000000000000000000
--- a/conversations/conv_019069.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6138-93182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93182.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.511515542513397,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11528.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93182.flac |",
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-    {
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "cough",
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-      "start_time": 24.47157526361322,
-      "speaker_id": "6138"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019074.json b/conversations/conv_019074.json
deleted file mode 100644
index 2cd5df2ec4a7a7a8c940c241c5a695ac0590c240..0000000000000000000000000000000000000000
--- a/conversations/conv_019074.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.141779837069734,
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-      "overlap": false,
-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 5.706857857091137,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
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-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 98268
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-29406.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.093493847607864,
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-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 166183
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.246893301543757,
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-      "duration": 1.753106698456243,
-      "start_frame": 483950,
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-      "overlap": false,
-      "utterance_id": "5157-47237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47237.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "start_time": 16.428528109095943,
-      "speaker_id": "7383"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019078.json b/conversations/conv_019078.json
deleted file mode 100644
index a4841744c7bc6285bb3df17eb010a8e22de6e751..0000000000000000000000000000000000000000
--- a/conversations/conv_019078.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.086143104462506,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26982.flac |",
-      "real_speaker_id": "5604",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-26876.flac |",
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6139-58869",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58869.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.178115349142523,
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-      "overlap": false,
-      "utterance_id": "6370-26876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-26876.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
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-      "start_time": 19.46980713358671,
-      "speaker_id": "5604"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019081.json b/conversations/conv_019081.json
deleted file mode 100644
index b66bd031063461b75b6510adec4762be86b576f1..0000000000000000000000000000000000000000
--- a/conversations/conv_019081.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1547-130184",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1547-130184.flac |",
-      "real_speaker_id": "1547",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-74002.flac |",
-      "real_speaker_id": "6724",
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-      "real_speaker_id": "6724",
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "6724-73991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73991.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "1547"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019086.json b/conversations/conv_019086.json
deleted file mode 100644
index 93e54422e4eb69e2d19da09217e7017c11384b6f..0000000000000000000000000000000000000000
--- a/conversations/conv_019086.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
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-  "foreground_events": [
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-      "speaker_id": "1403"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019090.json b/conversations/conv_019090.json
deleted file mode 100644
index b2a1b5d2a7d924e9f75b4fffbd83d9d0ca9df6ea..0000000000000000000000000000000000000000
--- a/conversations/conv_019090.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.75145930396244,
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-      "start_frame": 0,
-      "duration_frames": 108023,
-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.128122857536081,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 108023
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.215970316486231,
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-      "utterance_id": "2240-148521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148521.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.083189310852344,
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-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 163119
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.76924037570017,
-      "end_time": 28.29914164430094,
-      "duration": 4.529901268600767,
-      "start_frame": 380307,
-      "duration_frames": 72478,
-      "overlap": false,
-      "utterance_id": "2240-148529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148529.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.23222653308573,
-      "end_time": 32.0,
-      "duration": 2.767773466914271,
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-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 0.9316429714873673,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "3221"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019097.json b/conversations/conv_019097.json
deleted file mode 100644
index c18b34617d0e3ffae425ceacf6f72cb904d0181c..0000000000000000000000000000000000000000
--- a/conversations/conv_019097.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6352-83633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6352-83633.flac |",
-      "real_speaker_id": "6352",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1649-5776.flac |",
-      "real_speaker_id": "1649",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "6352",
-      "position_frames": 160782
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.966968622233853,
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-      "utterance_id": "2985-153202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2985-153202.flac |",
-      "real_speaker_id": "2985",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "start_time": 30.92,
-      "speaker_id": "2985"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019106.json b/conversations/conv_019106.json
deleted file mode 100644
index b1006e92831506b866dd152b6dc3590ad7de4763..0000000000000000000000000000000000000000
--- a/conversations/conv_019106.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7000-83708",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019107.json b/conversations/conv_019107.json
deleted file mode 100644
index a77617b526e449c3e1e46b510eea3a19930e8c83..0000000000000000000000000000000000000000
--- a/conversations/conv_019107.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.555570575327575,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5756/laugh/0024.wav",
-      "duration": 0.7048230449612853,
-      "start_time": 22.755826738494807,
-      "speaker_id": "5756"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5756/cough/0086.wav",
-      "duration": 0.7479477002525607,
-      "start_time": 16.698144428350407,
-      "speaker_id": "5756"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019111.json b/conversations/conv_019111.json
deleted file mode 100644
index bbe2179c12a875f9b4cd4eba71a8d01d7784ca3b..0000000000000000000000000000000000000000
--- a/conversations/conv_019111.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.016981745051636,
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-      "overlap": false,
-      "utterance_id": "4710-964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-964.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.710826833859379,
-      "end_time": 7.8970206821628794,
-      "duration": 3.1861938483035006,
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-      "utterance_id": "8033-283463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-283463.flac |",
-      "real_speaker_id": "8033",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.877058871564842,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-964.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 80271
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.791976859102583,
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-      "utterance_id": "4710-17347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-17347.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.233673549377365,
-      "end_time": 24.836707463010434,
-      "duration": 5.60303391363307,
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-      "utterance_id": "4710-24606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-24606.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.28498049958177,
-      "end_time": 29.697763831652843,
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-      "duration_frames": 70604,
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-      "utterance_id": "8033-104515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-104515.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.88307536062979,
-      "end_time": 32.0,
-      "duration": 2.116924639370211,
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-      "duration_frames": 33870,
-      "overlap": false,
-      "utterance_id": "4260-176854",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176854.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
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-      "event_class": "Running_water",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.76,
-      "start_time": 21.205238306100345,
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8033/laugh/0016.wav",
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-      "speaker_id": "8033"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019127.json b/conversations/conv_019127.json
deleted file mode 100644
index 5aad733046a818a166bc7ff08b56f93d543ac1e9..0000000000000000000000000000000000000000
--- a/conversations/conv_019127.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-18532.flac |",
-      "real_speaker_id": "4455",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 96264
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "7607-89899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
-      "real_speaker_id": "7607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4455-90866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-90866.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 184941
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019131.json b/conversations/conv_019131.json
deleted file mode 100644
index cfe1292a54d09f45082f38984d910d8d8a9254f2..0000000000000000000000000000000000000000
--- a/conversations/conv_019131.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.336046598441506,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8195-117382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
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-    {
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-      "overlap": true,
-      "utterance_id": "5093-26496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-26496.flac |",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_019146.json b/conversations/conv_019146.json
deleted file mode 100644
index 07a0cef90cfeaf99b6b37cb033e7b5a044fef051..0000000000000000000000000000000000000000
--- a/conversations/conv_019146.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3417-6522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3417-6522.flac |",
-      "real_speaker_id": "3417",
-      "position_frames": 74264
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
-      "duration": 0.5431292517006803,
-      "start_time": 23.05797725606595
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.5176588609257045,
-      "start_time": 15.701032235451024
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_019150.json b/conversations/conv_019150.json
deleted file mode 100644
index ee16beb5906771dec5c374660a59e9792f2b546b..0000000000000000000000000000000000000000
--- a/conversations/conv_019150.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.450721131070337,
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-      "overlap": false,
-      "utterance_id": "3368-170951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170951.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.343917630534141,
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-      "duration": 5.238307020994718,
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-      "utterance_id": "8095-274345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274345.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "3368-170950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170950.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.924380328974166,
-      "end_time": 22.0006307399108,
-      "duration": 4.076250410936633,
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-      "duration_frames": 65220,
-      "overlap": false,
-      "utterance_id": "3368-170951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170951.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 87211
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.389780487279136,
-      "end_time": 27.125662664623164,
-      "duration": 5.735882177344028,
-      "start_frame": 342236,
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-      "overlap": true,
-      "utterance_id": "8095-274348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274348.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.707326853919096,
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-      "duration": 3.2926731460809044,
-      "start_frame": 459317,
-      "duration_frames": 52682,
-      "overlap": false,
-      "utterance_id": "3097-165352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3097-165352.flac |",
-      "real_speaker_id": "3097",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 2.091555928819323,
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
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-  "paralinguistic_events": [
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-      "start_time": 17.65721445873012,
-      "speaker_id": "3368"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019151.json b/conversations/conv_019151.json
deleted file mode 100644
index 0861ad67ad99f5b397d206a621d702678489b986..0000000000000000000000000000000000000000
--- a/conversations/conv_019151.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.457950587608437,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7121-88076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-88076.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.3125120596637725,
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-      "utterance_id": "1572-141715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141715.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3330-170956.flac |",
-      "real_speaker_id": "3330",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-86787.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.44736223065369,
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-      "utterance_id": "3330-170956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3330-170956.flac |",
-      "real_speaker_id": "3330",
-      "position_frames": 106615
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.308977680667432,
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-      "start_frame": 404943,
-      "duration_frames": 98383,
-      "overlap": false,
-      "utterance_id": "7121-88076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-88076.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 74073
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-      "duration": 1.24,
-      "start_time": 22.455048195949555,
-      "speaker_id": "3330"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019166.json b/conversations/conv_019166.json
deleted file mode 100644
index da6d073f29f845d36ca7a0aa03e37c08c132e85d..0000000000000000000000000000000000000000
--- a/conversations/conv_019166.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8770-295462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295462.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
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-      "utterance_id": "8770-295465",
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-      "real_speaker_id": "8770",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
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-    },
-    {
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-      "real_speaker_id": "8770",
-      "position_frames": 101723
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-      "segment_id": "seg0005",
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-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 0.3564156728626884,
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-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7120/laugh/0088.wav",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019170.json b/conversations/conv_019170.json
deleted file mode 100644
index 7072e67291f737f45afc3a013e5d7ffd2cd3ad47..0000000000000000000000000000000000000000
--- a/conversations/conv_019170.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
-      "position_frames": 0
-    },
-    {
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "4779-54868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4779-54868.flac |",
-      "real_speaker_id": "4779",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "215-122798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-122798.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
-      "duration": 0.3546485260770975,
-      "start_time": 25.503117070813147
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_2.wav",
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-      "start_time": 16.492897918496
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_019182.json b/conversations/conv_019182.json
deleted file mode 100644
index 719b39d57d449cbada5ccd564b64d3fdb09281de..0000000000000000000000000000000000000000
--- a/conversations/conv_019182.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.318935694508867,
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-      "overlap": false,
-      "utterance_id": "373-130974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130974.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.645964253823737,
-      "end_time": 9.718444994222045,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4750-12478.flac |",
-      "real_speaker_id": "4750",
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-      "utterance_id": "373-130975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130975.flac |",
-      "real_speaker_id": "373",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130975.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 72803
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-    {
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-      "utterance_id": "4750-26487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4750-26487.flac |",
-      "real_speaker_id": "4750",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.965753559682263,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4750/laugh/0075.wav",
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-      "speaker_id": "4750"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019185.json b/conversations/conv_019185.json
deleted file mode 100644
index 178ec209ad00bc17e26cbe83734d4e9ebd5276d7..0000000000000000000000000000000000000000
--- a/conversations/conv_019185.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1743-142913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142913.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
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-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142913.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 75686
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "real_speaker_id": "2815",
-      "position_frames": 153170
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019189.json b/conversations/conv_019189.json
deleted file mode 100644
index 07f45d1fec28b1268811ca5d6d89aa76ac2e5b55..0000000000000000000000000000000000000000
--- a/conversations/conv_019189.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48842.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48848.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0005",
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-      "speaker_id": "8200"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_019193.json b/conversations/conv_019193.json
deleted file mode 100644
index 52b7e63c86f24e06d736bcc23f14cdd17b5bb6d1..0000000000000000000000000000000000000000
--- a/conversations/conv_019193.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.659825682736385,
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-      "utterance_id": "3547-156970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-156970.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.009089874690845,
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-      "utterance_id": "9022-282357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.330399459538995,
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-      "duration": 5.2471490574130994,
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-      "utterance_id": "3547-8363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-8363.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "3547-8365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-8365.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.529824842384205,
-      "end_time": 32.0,
-      "duration": 4.470175157615795,
-      "start_frame": 440477,
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-      "overlap": false,
-      "utterance_id": "4799-25950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25950.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-    {
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-      "event_class": "cough",
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-      "duration": 1.32,
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-      "speaker_id": "4799"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019194.json b/conversations/conv_019194.json
deleted file mode 100644
index aed891e178b1ef6f440e535a7aa1e0ec5d5045d0..0000000000000000000000000000000000000000
--- a/conversations/conv_019194.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56787.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6758-72288.flac |",
-      "real_speaker_id": "6758",
-      "position_frames": 79380
-    },
-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6758-72288.flac |",
-      "real_speaker_id": "6758",
-      "position_frames": 139479
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7085-75807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-75807.flac |",
-      "real_speaker_id": "7085",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_019202.json b/conversations/conv_019202.json
deleted file mode 100644
index 208a1ae7ad9fa660c4b6bb2c8b20718b000a46f4..0000000000000000000000000000000000000000
--- a/conversations/conv_019202.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_019205.json b/conversations/conv_019205.json
deleted file mode 100644
index a0e220f328a4b53a1f04d7bc42ef9d64a8111faf..0000000000000000000000000000000000000000
--- a/conversations/conv_019205.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
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-      "utterance_id": "6549-71114",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6549-71114.flac |",
-      "real_speaker_id": "6549",
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-  "background_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_019213.json b/conversations/conv_019213.json
deleted file mode 100644
index 3f55e0dc71481bbc5b6f3e059945b17f7c6104fd..0000000000000000000000000000000000000000
--- a/conversations/conv_019213.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.783213083050526,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.618372186527707,
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-      "utterance_id": "8677-291953",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-291953.flac |",
-      "real_speaker_id": "8677",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 4.016400655921004,
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-      "segment_id": "seg0002",
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-      "utterance_id": "3584-74477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3584-74477.flac |",
-      "real_speaker_id": "3584",
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-      "start_time": 16.855455827520746,
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-      "utterance_id": "8677-246948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-246948.flac |",
-      "real_speaker_id": "8677",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.728871662376676,
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-      "utterance_id": "3584-178748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3584-178748.flac |",
-      "real_speaker_id": "3584",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.446072464159023,
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-      "duration": 4.337140618891503,
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-      "duration_frames": 69394,
-      "overlap": true,
-      "utterance_id": "8677-246948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-246948.flac |",
-      "real_speaker_id": "8677",
-      "position_frames": 65454
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019214.json b/conversations/conv_019214.json
deleted file mode 100644
index 33a2c43f2876a7fa3998c7e6d31ca8874fad2530..0000000000000000000000000000000000000000
--- a/conversations/conv_019214.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2911-15045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15045.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-7601.flac |",
-      "real_speaker_id": "2911",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15045.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 77945
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-    {
-      "segment_id": "seg0004",
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4750-12478.flac |",
-      "real_speaker_id": "4750",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.58629850932588,
-      "end_time": 32.0,
-      "duration": 2.4137014906741214,
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-      "overlap": false,
-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 95928
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019218.json b/conversations/conv_019218.json
deleted file mode 100644
index 5f40aed6d1370704e64d8915c6296abc8a9ba7d9..0000000000000000000000000000000000000000
--- a/conversations/conv_019218.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.706503683560367,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "2709-158074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2709-158074.flac |",
-      "real_speaker_id": "2709",
-      "position_frames": 0
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-      "real_speaker_id": "2709",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "2709",
-      "position_frames": 164700
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-    {
-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "7000-83706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83706.flac |",
-      "real_speaker_id": "7000",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019222.json b/conversations/conv_019222.json
deleted file mode 100644
index 95564485989318631a3d4de33feb2c64d18396ad..0000000000000000000000000000000000000000
--- a/conversations/conv_019222.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.635415864729307,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7925-111766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-111766.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
-    },
-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-274728.flac |",
-      "real_speaker_id": "5019",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-44339.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 0
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-      "utterance_id": "7925-116154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-116154.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
-      "duration": 0.6683219954648526,
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7925/laugh/0006.wav",
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-      "start_time": 1.9228797913469486,
-      "speaker_id": "7925"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7925/cough/0067.wav",
-      "duration": 0.7275145901471803,
-      "start_time": 3.4750179818958844,
-      "speaker_id": "7925"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5190/laugh/0034.wav",
-      "duration": 0.9124726103679599,
-      "start_time": 8.127388206953434,
-      "speaker_id": "5190"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7925/laugh/0040.wav",
-      "duration": 1.28,
-      "start_time": 24.726355596115294,
-      "speaker_id": "7925"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019234.json b/conversations/conv_019234.json
deleted file mode 100644
index 2f3c237d1a84ffb50fbd8a4807c854f429d8b989..0000000000000000000000000000000000000000
--- a/conversations/conv_019234.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration_frames": 57372,
-      "overlap": false,
-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.983935277800444,
-      "end_time": 7.940878548066469,
-      "duration": 3.956943270266025,
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-      "duration_frames": 63311,
-      "overlap": false,
-      "utterance_id": "2208-11020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.499101087091185,
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-      "overlap": false,
-      "utterance_id": "2053-138901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138901.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.380065561899304,
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-      "utterance_id": "6510-62558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62558.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.72154047122542,
-      "end_time": 21.50634966429766,
-      "duration": 3.7848091930722374,
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-      "duration_frames": 60556,
-      "overlap": false,
-      "utterance_id": "2208-11020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 63311
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 21.997233043425204,
-      "end_time": 28.698364987460813,
-      "duration": 6.70113194403561,
-      "start_frame": 351955,
-      "duration_frames": 107218,
-      "overlap": false,
-      "utterance_id": "2208-11020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 123867
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.090845322230514,
-      "end_time": 32.0,
-      "duration": 2.909154677769486,
-      "start_frame": 465453,
-      "duration_frames": 46546,
-      "overlap": false,
-      "utterance_id": "2053-138888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 20.201437292877795,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6510/laugh/0066.wav",
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-      "start_time": 3.58743185010242,
-      "speaker_id": "6510"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2208/laugh/0059.wav",
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-      "start_time": 5.7076831867392315,
-      "speaker_id": "2208"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2208/cough/0062.wav",
-      "duration": 1.186580354358912,
-      "start_time": 16.41244908954856,
-      "speaker_id": "2208"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2053/laugh/0031.wav",
-      "duration": 0.5150455238612426,
-      "start_time": 31.484954476138757,
-      "speaker_id": "2053"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019238.json b/conversations/conv_019238.json
deleted file mode 100644
index c3374f33c0e18f3a58ca5f3405ad1fc225c8b0ad..0000000000000000000000000000000000000000
--- a/conversations/conv_019238.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "228-133094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-133094.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.555906058754804,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-39664.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6368-39664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-39664.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 88611
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.482917743583194,
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-      "overlap": true,
-      "utterance_id": "228-131212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.512358655028795,
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-      "duration_frames": 52459,
-      "overlap": false,
-      "utterance_id": "6368-39664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-39664.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 142728
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.428191315008004,
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-      "duration": 5.442664879263685,
-      "start_frame": 374851,
-      "duration_frames": 87082,
-      "overlap": true,
-      "utterance_id": "228-131212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 72577
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.514830262491678,
-      "end_time": 32.0,
-      "duration": 1.485169737508322,
-      "start_frame": 488237,
-      "duration_frames": 23762,
-      "overlap": false,
-      "utterance_id": "6368-39664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-39664.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 195187
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "Electric_shaver_toothbrush",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6368/laugh/0032.wav",
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-      "start_time": 6.157541958061447,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/228/laugh/0084.wav",
-      "duration": 0.9260307212195154,
-      "start_time": 14.27012134002218,
-      "speaker_id": "228"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019243.json b/conversations/conv_019243.json
deleted file mode 100644
index fdecebea0955707f3b117f3d59f6557c7a3a48bd..0000000000000000000000000000000000000000
--- a/conversations/conv_019243.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.916312880467209,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7538-100045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.422942519282408,
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-      "duration": 4.078415957490517,
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-      "overlap": true,
-      "utterance_id": "3691-178103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178103.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.193283564029013,
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-      "utterance_id": "7538-100045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 94661
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.001809944829354,
-      "end_time": 22.451774716867167,
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-      "duration_frames": 71199,
-      "overlap": false,
-      "utterance_id": "3691-178103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178103.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 65254
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.43472203162022,
-      "end_time": 28.821006543550915,
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-      "duration_frames": 86180,
-      "overlap": false,
-      "utterance_id": "1168-134958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.2837793832005,
-      "end_time": 32.0,
-      "duration": 2.7162206167995,
-      "start_frame": 468540,
-      "duration_frames": 43459,
-      "overlap": false,
-      "utterance_id": "3691-178109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178109.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 11.544754717247924
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3691/cough/0041.wav",
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-      "start_time": 10.550527293974993,
-      "speaker_id": "3691"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019244.json b/conversations/conv_019244.json
deleted file mode 100644
index b1cc7edb780cca7190783b843c11e117c37509d6..0000000000000000000000000000000000000000
--- a/conversations/conv_019244.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.07906375846129,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.616531444680134,
-      "duration": 6.616531444680134,
-      "start_frame": 0,
-      "duration_frames": 105864,
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-      "utterance_id": "7392-105664",
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-      "start_time": 29.56170020526849,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126790.flac |",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_019252.json b/conversations/conv_019252.json
deleted file mode 100644
index 12ecb800ff426194812589d7a125a6103d0998b0..0000000000000000000000000000000000000000
--- a/conversations/conv_019252.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
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-      "real_speaker_id": "6798",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 110477
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-  "background_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_019255.json b/conversations/conv_019255.json
deleted file mode 100644
index d653f22a80eb77023793761a9e8848670aa8e6e8..0000000000000000000000000000000000000000
--- a/conversations/conv_019255.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_019259.json b/conversations/conv_019259.json
deleted file mode 100644
index b6d3e7747a4f0e1b88ddb9b94c09df6ae00e8714..0000000000000000000000000000000000000000
--- a/conversations/conv_019259.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2393/laugh/0083.wav",
-      "duration": 0.6109850690867416,
-      "start_time": 27.20048389238657,
-      "speaker_id": "2393"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8199/laugh/0007.wav",
-      "duration": 1.2367165823779553,
-      "start_time": 29.433353743218653,
-      "speaker_id": "8199"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019263.json b/conversations/conv_019263.json
deleted file mode 100644
index 9799c762da03947c0b1b19825def61f6fada57dc..0000000000000000000000000000000000000000
--- a/conversations/conv_019263.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.260535378988639,
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-      "overlap": false,
-      "utterance_id": "353-128309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.6410668629018,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1547-130184.flac |",
-      "real_speaker_id": "1547",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 9.990751590290056,
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-      "utterance_id": "3063-138651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.084342556376338,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1547-130184.flac |",
-      "real_speaker_id": "1547",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.818794971869117,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1547-130184.flac |",
-      "real_speaker_id": "1547",
-      "position_frames": 152787
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 28.160855982488123,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 78403
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_6.wav",
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-      "event_class": "Cat",
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-      "speaker_id": "1547"
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\ No newline at end of file
diff --git a/conversations/conv_019275.json b/conversations/conv_019275.json
deleted file mode 100644
index a4a516618eb525fcd02d9607bf01ade4bec2abb3..0000000000000000000000000000000000000000
--- a/conversations/conv_019275.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8848-293957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8848-293957.flac |",
-      "real_speaker_id": "8848",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.535173661312626,
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-      "overlap": false,
-      "utterance_id": "8208-256239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256239.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.270036699588303,
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-      "utterance_id": "8208-256238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 73985
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019279.json b/conversations/conv_019279.json
deleted file mode 100644
index 2433c0bf470bceb9222f3f13cf53b5c6dd283a1d..0000000000000000000000000000000000000000
--- a/conversations/conv_019279.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "46-128001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "46-128001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 50658
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.01467801727789,
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-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 86445
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.477390358943715,
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-      "utterance_id": "46-127996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.92436198391316,
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-      "duration": 6.075638016086842,
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-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 145477
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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\ No newline at end of file
diff --git a/conversations/conv_019280.json b/conversations/conv_019280.json
deleted file mode 100644
index 1b5ad8cfd4651d254882a1908bd4df8a4c09f146..0000000000000000000000000000000000000000
--- a/conversations/conv_019280.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.439091042156999,
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-      "duration_frames": 83121,
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-      "utterance_id": "6575-67592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 49381
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6575",
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-      "real_speaker_id": "1752",
-      "position_frames": 0
-    },
-    {
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_019296.json b/conversations/conv_019296.json
deleted file mode 100644
index 7f5b07aa168445edb20d068a99066f1a08b0d0e7..0000000000000000000000000000000000000000
--- a/conversations/conv_019296.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.7924011862643,
-      "duration": 4.7924011862643,
-      "start_frame": 0,
-      "duration_frames": 76678,
-      "overlap": false,
-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.408584566206079,
-      "end_time": 11.103774713892692,
-      "duration": 6.695190147686613,
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-      "duration_frames": 107123,
-      "overlap": true,
-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.291575940082359,
-      "end_time": 16.188490574163318,
-      "duration": 3.8969146340809595,
-      "start_frame": 196665,
-      "duration_frames": 62350,
-      "overlap": false,
-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 76678
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.792368173307413,
-      "end_time": 21.60890659432852,
-      "duration": 4.816538421021106,
-      "start_frame": 268677,
-      "duration_frames": 77064,
-      "overlap": false,
-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 107123
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.676697619388825,
-      "end_time": 28.02206999450986,
-      "duration": 5.345372375121033,
-      "start_frame": 362827,
-      "duration_frames": 85525,
-      "overlap": false,
-      "utterance_id": "608-123194",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123194.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.334249198419986,
-      "end_time": 32.0,
-      "duration": 2.665750801580014,
-      "start_frame": 469347,
-      "duration_frames": 42652,
-      "overlap": false,
-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 184187
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
-      "duration": 11.100234300412238,
-      "start_time": 19.150282204592195
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-    {
-      "event_class": "Running_water",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/cough/0072.wav",
-      "duration": 0.3534504318671104,
-      "start_time": 0,
-      "speaker_id": "1001"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/319/laugh/0135.wav",
-      "duration": 1.04,
-      "start_time": 15.652216500117445,
-      "speaker_id": "319"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/608/laugh/0082.wav",
-      "duration": 1.3921365541044095,
-      "start_time": 28.239084339061545,
-      "speaker_id": "608"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019301.json b/conversations/conv_019301.json
deleted file mode 100644
index 78367ddbaf8511b6e3f77eabdb015396006f7b1c..0000000000000000000000000000000000000000
--- a/conversations/conv_019301.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.133122888743454,
-      "duration": 6.133122888743454,
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-      "overlap": false,
-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.863783017760408,
-      "end_time": 11.824417220246723,
-      "duration": 4.9606342024863155,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154736.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.821342550983227,
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-      "overlap": true,
-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 98129
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.698263429277056,
-      "end_time": 26.037954028396477,
-      "duration": 5.339690599119422,
-      "start_frame": 331172,
-      "duration_frames": 85435,
-      "overlap": false,
-      "utterance_id": "2427-154736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154736.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 79370
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.55875063603036,
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-      "duration": 3.190347820692541,
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-      "duration_frames": 51045,
-      "overlap": false,
-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 197410
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.921546144575956,
-      "end_time": 32.0,
-      "duration": 2.078453855424044,
-      "start_frame": 478744,
-      "duration_frames": 33255,
-      "overlap": false,
-      "utterance_id": "2427-154673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154673.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.6898305424904767,
-      "start_time": 0.47116615444402404
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2618/laugh/0024.wav",
-      "duration": 1.1,
-      "start_time": 19.229137606728557,
-      "speaker_id": "2618"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019306.json b/conversations/conv_019306.json
deleted file mode 100644
index feb865c21af5fa390c971b34189b0d88588d3b75..0000000000000000000000000000000000000000
--- a/conversations/conv_019306.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "duration_frames": 57738,
-      "overlap": false,
-      "utterance_id": "175-123036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-123036.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5039-1188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1188.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.421846888275963,
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-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 61781
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5039-1189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1189.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-127696.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.19589761644829,
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-      "overlap": false,
-      "utterance_id": "5039-1189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1189.flac |",
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-      "position_frames": 90929
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5039/cough/0023.wav",
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-      "start_time": 23.484918562148664,
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5039/laugh/0105.wav",
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-      "start_time": 30.924641078987662,
-      "speaker_id": "5039"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019310.json b/conversations/conv_019310.json
deleted file mode 100644
index 2f2157382bdd5ff8ea7ea9cd43bcbed27a23886b..0000000000000000000000000000000000000000
--- a/conversations/conv_019310.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "2499-156155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156155.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "6539-66421",
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-      "real_speaker_id": "6539",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "115-121720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121720.flac |",
-      "real_speaker_id": "115",
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-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
-    {
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-    {
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 26.17703222503907,
-      "speaker_id": "115"
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
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-      "event_class": "cough",
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-      "start_time": 27.447651232394893,
-      "speaker_id": "6539"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019317.json b/conversations/conv_019317.json
deleted file mode 100644
index 240245bfe0260c55f895ec96aad82cbb829abeba..0000000000000000000000000000000000000000
--- a/conversations/conv_019317.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.171617049933699,
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-      "overlap": false,
-      "utterance_id": "4738-291945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-291945.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8609-262281.flac |",
-      "real_speaker_id": "8609",
-      "position_frames": 0
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-      "start_time": 9.581007543297222,
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-      "utterance_id": "4738-58078",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-58078.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 16.27054722427262,
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-      "utterance_id": "5809-51162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51162.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.516461997669207,
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-      "utterance_id": "8609-262281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8609-262281.flac |",
-      "real_speaker_id": "8609",
-      "position_frames": 80303
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.292552685498443,
-      "end_time": 32.0,
-      "duration": 3.7074473145015574,
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-      "duration_frames": 59319,
-      "overlap": false,
-      "utterance_id": "4738-291957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-291957.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019326.json b/conversations/conv_019326.json
deleted file mode 100644
index a56d9a0aa87d1f8485753a02a45070102e51c4d8..0000000000000000000000000000000000000000
--- a/conversations/conv_019326.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5909-107621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-107621.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.907035404709696,
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-      "utterance_id": "3618-175930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175930.flac |",
-      "real_speaker_id": "3618",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.623983018318043,
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-      "duration": 4.6636581978281715,
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-      "utterance_id": "5909-287837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-287837.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.484572799236354,
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-      "overlap": false,
-      "utterance_id": "3618-175930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175930.flac |",
-      "real_speaker_id": "3618",
-      "position_frames": 101637
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.464919481155345,
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-      "utterance_id": "1200-135043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135043.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1200/laugh/0118.wav",
-      "duration": 1.0304356996990156,
-      "start_time": 30.969564300300984,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019330.json b/conversations/conv_019330.json
deleted file mode 100644
index 2aabd7969ae4deb1e7dd982be46542b24d283c4e..0000000000000000000000000000000000000000
--- a/conversations/conv_019330.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1498-140040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140040.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-143307.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-12471.flac |",
-      "real_speaker_id": "4427",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-143307.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 111431
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "1498",
-      "position_frames": 100350
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-  ],
-  "background_events": [
-    {
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-      "event_class": "cough",
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-      "speaker_id": "1556"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019340.json b/conversations/conv_019340.json
deleted file mode 100644
index 2ea99bab6d3895b3ff8639349f8cebf295c104e2..0000000000000000000000000000000000000000
--- a/conversations/conv_019340.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.610889461692953,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.3344437193554946,
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-      "start_frame": 0,
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-      "utterance_id": "8011-280922",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-280922.flac |",
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-    {
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-      "real_speaker_id": "3922",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-284014.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8011/laugh/0030.wav",
-      "duration": 1.4,
-      "start_time": 14.085655470068918,
-      "speaker_id": "8011"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_019347.json b/conversations/conv_019347.json
deleted file mode 100644
index 79cd6817afbffd341a58462ec80effc33455ece1..0000000000000000000000000000000000000000
--- a/conversations/conv_019347.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.600483805382485,
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-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-169293.flac |",
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1353-121397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-121397.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.414623091872881,
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-      "overlap": false,
-      "utterance_id": "1353-122456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-122456.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.721742054312006,
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-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 73607
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.274886624679954,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-121397.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 62720
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-134827.flac |",
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-  "foreground_events": [
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-      "speaker_id": "4821"
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-      "duration": 1.08,
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-}
\ No newline at end of file
diff --git a/conversations/conv_019351.json b/conversations/conv_019351.json
deleted file mode 100644
index a81429ce656042fe42b723535dac02977f665ac0..0000000000000000000000000000000000000000
--- a/conversations/conv_019351.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246972.flac |",
-      "real_speaker_id": "8778",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136241.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-134419.flac |",
-      "real_speaker_id": "3647",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.37872711744891,
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-      "utterance_id": "3647-180300",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-180300.flac |",
-      "real_speaker_id": "3647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-134419.flac |",
-      "real_speaker_id": "3647",
-      "position_frames": 88443
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-}
\ No newline at end of file
diff --git a/conversations/conv_019356.json b/conversations/conv_019356.json
deleted file mode 100644
index 3cfb350b1bd7f31b6878636e5dbd4457bfd4deea..0000000000000000000000000000000000000000
--- a/conversations/conv_019356.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1291",
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\ No newline at end of file
diff --git a/conversations/conv_019367.json b/conversations/conv_019367.json
deleted file mode 100644
index 6f691dcf8fa015021a7b167d3052120c59d00f98..0000000000000000000000000000000000000000
--- a/conversations/conv_019367.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6519-69411",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 152079
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.8,
-      "start_time": 12.9836907384912,
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-      "speaker_id": "3911"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019371.json b/conversations/conv_019371.json
deleted file mode 100644
index e2e78bb67cd697732f9933a7f03aefbb78636783..0000000000000000000000000000000000000000
--- a/conversations/conv_019371.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "198-209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-209.flac |",
-      "real_speaker_id": "198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.847259264861813,
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-      "utterance_id": "2275-150140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2275-150140.flac |",
-      "real_speaker_id": "2275",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "2275-150140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2275-150140.flac |",
-      "real_speaker_id": "2275",
-      "position_frames": 78496
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-      "utterance_id": "2275-150141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2275-150141.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-129977.flac |",
-      "real_speaker_id": "198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2275-150141.flac |",
-      "real_speaker_id": "2275",
-      "position_frames": 82332
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.126171276976105,
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-      "utterance_id": "2952-410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-410.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "start_time": 0,
-      "speaker_id": "198"
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-      "speaker_id": "2952"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019384.json b/conversations/conv_019384.json
deleted file mode 100644
index 9980226566d75e5aa8d3acff34acca2ccd860cf1..0000000000000000000000000000000000000000
--- a/conversations/conv_019384.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "4806-26895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26895.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-4145.flac |",
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-      "utterance_id": "340-124368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26895.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 87704
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.898989979045453,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 143600
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "340"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019385.json b/conversations/conv_019385.json
deleted file mode 100644
index cb4582da31ec2eb3c957b4e0b38e1c1d3558efbc..0000000000000000000000000000000000000000
--- a/conversations/conv_019385.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294114.flac |",
-      "real_speaker_id": "8820",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294114.flac |",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
-      "real_speaker_id": "1349",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.347728290494906,
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-      "real_speaker_id": "8820",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_019388.json b/conversations/conv_019388.json
deleted file mode 100644
index e8eeb2e87bd1f6c7d52005c8d4fb9078fff6ec41..0000000000000000000000000000000000000000
--- a/conversations/conv_019388.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "5023-33399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-33399.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2240-148521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148521.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-1185.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 102431
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.106414213307332,
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-      "utterance_id": "2240-148521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148521.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 49826
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.26655876528982,
-      "end_time": 32.0,
-      "duration": 0.7334412347101811,
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-      "utterance_id": "5023-41918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-41918.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
-      "duration": 24.969727891156463,
-      "start_time": 6.906056692022144
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5023/cough/0107.wav",
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-      "speaker_id": "5023"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019392.json b/conversations/conv_019392.json
deleted file mode 100644
index 1963d6e788634fc4a63a052723e54fa1f21741a6..0000000000000000000000000000000000000000
--- a/conversations/conv_019392.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.7128815527640295,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.00337277116924,
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-      "duration": 4.284525954128894,
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-      "overlap": false,
-      "utterance_id": "956-157879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.873280391318534,
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-      "duration": 3.4918458970598625,
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-      "overlap": false,
-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 75406
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.819498442336428,
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-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.13152749357096,
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-      "utterance_id": "956-127932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.393665002986594,
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-      "start_frame": 422298,
-      "duration_frames": 69434,
-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 98594
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.369668775225723,
-      "end_time": 32.0,
-      "duration": 0.6303312247742774,
-      "start_frame": 501914,
-      "duration_frames": 10085,
-      "overlap": false,
-      "utterance_id": "956-157879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 68552
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
-      "duration": 21.915604104744197,
-      "start_time": 6.781118187966143
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1878/laugh/0029.wav",
-      "duration": 1.0,
-      "start_time": 3.4156309998271053,
-      "speaker_id": "1878"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/956/laugh/0106.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "1878"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 12.621572958338508,
-      "speaker_id": "960"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/956/cough/0104.wav",
-      "duration": 1.04,
-      "start_time": 26.185993738187825,
-      "speaker_id": "956"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019404.json b/conversations/conv_019404.json
deleted file mode 100644
index 1828b25a50aec301cab1168e8992dbe9b3c217e9..0000000000000000000000000000000000000000
--- a/conversations/conv_019404.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.81157029645359,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.3044524718278705,
-      "duration": 3.3044524718278705,
-      "start_frame": 0,
-      "duration_frames": 52871,
-      "overlap": false,
-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.861109177052916,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
-      "real_speaker_id": "1696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.511354604934699,
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-      "duration": 3.9350716393473895,
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-      "overlap": false,
-      "utterance_id": "8500-258286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258286.flac |",
-      "real_speaker_id": "8500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.172787667656344,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 52871
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.41595800786186,
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-      "utterance_id": "1696-142314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
-      "real_speaker_id": "1696",
-      "position_frames": 102975
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.7485034312722,
-      "end_time": 30.81157029645359,
-      "duration": 6.063066865181385,
-      "start_frame": 395976,
-      "duration_frames": 97009,
-      "overlap": true,
-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 149521
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
-      "duration": 0.4758730158730159,
-      "start_time": 30.906605376981624
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
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-      "start_time": 4.786134811627953
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1696/laugh/0104.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8500/laugh/0066.wav",
-      "duration": 0.6377781418898245,
-      "start_time": 9.7969215429704,
-      "speaker_id": "8500"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5867/laugh/0099.wav",
-      "duration": 1.137309365856555,
-      "start_time": 14.006686359123117,
-      "speaker_id": "5867"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5867/laugh/0054.wav",
-      "duration": 1.8436676516169532,
-      "start_time": 22.750611785743768,
-      "speaker_id": "5867"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019408.json b/conversations/conv_019408.json
deleted file mode 100644
index a1c392e618faced53138840fe2a99aca997e2d0f..0000000000000000000000000000000000000000
--- a/conversations/conv_019408.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.28325710044121,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.482571771825532,
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-      "start_frame": 0,
-      "duration_frames": 103721,
-      "overlap": false,
-      "utterance_id": "225-131259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131259.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.065071080274039,
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-      "utterance_id": "737-123441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.884752853946882,
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-      "duration": 4.7809262586752,
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-      "duration_frames": 76494,
-      "overlap": false,
-      "utterance_id": "118-47824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.450497198176052,
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-      "duration": 3.8186867106596014,
-      "start_frame": 295207,
-      "duration_frames": 61098,
-      "overlap": false,
-      "utterance_id": "737-123441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 83707
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.518878332647265,
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-      "duration_frames": 61234,
-      "overlap": false,
-      "utterance_id": "118-47824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 76494
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "225-131276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131276.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.349743761414096,
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-      "duration": 0.9335133390271153,
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-      "duration_frames": 14936,
-      "overlap": true,
-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/225/laugh/0023.wav",
-      "duration": 0.5726608589535577,
-      "start_time": 2.7355534728290953,
-      "speaker_id": "225"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/118/laugh/0121.wav",
-      "duration": 0.7847032312407166,
-      "start_time": 17.95348243084913,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/118/laugh/0136.wav",
-      "duration": 0.6113515348866905,
-      "start_time": 31.372322734726097,
-      "speaker_id": "118"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019412.json b/conversations/conv_019412.json
deleted file mode 100644
index f7e384f50aee17af6005b8de50ed07f5cd6f7229..0000000000000000000000000000000000000000
--- a/conversations/conv_019412.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_019413.json b/conversations/conv_019413.json
deleted file mode 100644
index c25ef499bf81c421fb1e1bddcc2a5090b16881b3..0000000000000000000000000000000000000000
--- a/conversations/conv_019413.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3105-166683.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_019424.json b/conversations/conv_019424.json
deleted file mode 100644
index 365411ca7d2873b1b0fa45031b5da5a5c2d72cbb..0000000000000000000000000000000000000000
--- a/conversations/conv_019424.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_019428.json b/conversations/conv_019428.json
deleted file mode 100644
index 623dd937e6c3d145631e3c966aec6de74c1f1224..0000000000000000000000000000000000000000
--- a/conversations/conv_019428.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019432.json b/conversations/conv_019432.json
deleted file mode 100644
index 8a9460ecda3830c1b87afca3beee2979bb178875..0000000000000000000000000000000000000000
--- a/conversations/conv_019432.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6206-14960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14960.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.5510388771103045,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14958.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.75249718091061,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 68532
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.673077018319283,
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-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.34699438309643,
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 118750
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.94034149992639,
-      "end_time": 32.0,
-      "duration": 2.05965850007361,
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-      "utterance_id": "7218-80699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-80699.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "7218"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019439.json b/conversations/conv_019439.json
deleted file mode 100644
index e981cfa4ec5419eb3eeb3e45ad8b9a23d9d9fd9f..0000000000000000000000000000000000000000
--- a/conversations/conv_019439.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.548624851327429,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-93938.flac |",
-      "real_speaker_id": "6454",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-93938.flac |",
-      "real_speaker_id": "6454",
-      "position_frames": 88461
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.275121359898296,
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-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.1481749231327,
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-      "duration": 3.8518250768673,
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-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 96803
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_0.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.52,
-      "start_time": 0,
-      "speaker_id": "2276"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6454/cough/0016.wav",
-      "duration": 0.7200225428087978,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.6838093981962556,
-      "start_time": 29.62706002744725,
-      "speaker_id": "2276"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019444.json b/conversations/conv_019444.json
deleted file mode 100644
index c6af5a4a43976f5a13c5a0278a2adc02f960615b..0000000000000000000000000000000000000000
--- a/conversations/conv_019444.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.942076420542644,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
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-      "utterance_id": "3889-9915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-9915.flac |",
-      "real_speaker_id": "3889",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283492.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.92941360241304,
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-      "utterance_id": "3889-9915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-9915.flac |",
-      "real_speaker_id": "3889",
-      "position_frames": 78203
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7800-283492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283492.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 79560
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3889/cough/0051.wav",
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-      "speaker_id": "3889"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019445.json b/conversations/conv_019445.json
deleted file mode 100644
index efa97e37457bbadfd7dcd817f542b89935270e5e..0000000000000000000000000000000000000000
--- a/conversations/conv_019445.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5390-24512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-24512.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 83981
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 83645
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-283572.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019449.json b/conversations/conv_019449.json
deleted file mode 100644
index 88112722e600e4d1f0eb20f731961e8617d33736..0000000000000000000000000000000000000000
--- a/conversations/conv_019449.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6590-64282",
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-      "real_speaker_id": "4455",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019453.json b/conversations/conv_019453.json
deleted file mode 100644
index a51dc4a8406977683f3258db7bf5aa2a5f497ec9..0000000000000000000000000000000000000000
--- a/conversations/conv_019453.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.428406387734984,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.765903007875469,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-174992.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-287671.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 86907
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-}
\ No newline at end of file
diff --git a/conversations/conv_019465.json b/conversations/conv_019465.json
deleted file mode 100644
index 8d6bbf2b94b8caf56b0177105847cef92c0274f5..0000000000000000000000000000000000000000
--- a/conversations/conv_019465.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "real_speaker_id": "1664",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "4591",
-      "position_frames": 58730
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-      "real_speaker_id": "1664",
-      "position_frames": 67184
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-    {
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-      "duration": 1.12,
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-      "speaker_id": "4591"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019468.json b/conversations/conv_019468.json
deleted file mode 100644
index 9cf09930f3760b0dcae74869f0fa2134f6ae7ccf..0000000000000000000000000000000000000000
--- a/conversations/conv_019468.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2477.flac |",
-      "real_speaker_id": "2436",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123719.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
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-      "position_frames": 108640
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "481",
-      "position_frames": 94974
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 191166
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019469.json b/conversations/conv_019469.json
deleted file mode 100644
index fa17d73c1abee22cefdad31afe80922b37ddc35c..0000000000000000000000000000000000000000
--- a/conversations/conv_019469.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.51546876402203,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "923-132307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132307.flac |",
-      "real_speaker_id": "923",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_019473.json b/conversations/conv_019473.json
deleted file mode 100644
index 935d35a29802c8ac8625ef1a8be73abea0e196dc..0000000000000000000000000000000000000000
--- a/conversations/conv_019473.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32875.flac |",
-      "real_speaker_id": "5682",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/28-12332.flac |",
-      "real_speaker_id": "28",
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-      "speaker_id": 0,
-      "start_time": 24.875769922622883,
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-      "utterance_id": "3792-176660",
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-      "real_speaker_id": "3792",
-      "position_frames": 72204
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.803445384926984,
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-      "utterance_id": "5682-32877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32877.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019478.json b/conversations/conv_019478.json
deleted file mode 100644
index 81c2cb58fa0a900281e7c53cfc146402df183f24..0000000000000000000000000000000000000000
--- a/conversations/conv_019478.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-127369.flac |",
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-      "real_speaker_id": "3835",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66985.flac |",
-      "real_speaker_id": "6407",
-      "position_frames": 0
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-  "background_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "3835"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019481.json b/conversations/conv_019481.json
deleted file mode 100644
index 8fe426e2aa133d3f3224bb0b0df47cfec512d382..0000000000000000000000000000000000000000
--- a/conversations/conv_019481.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.61496936352724,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154436.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
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-      "real_speaker_id": "5339",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "2730",
-      "position_frames": 86226
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 150149
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-  ],
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-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1571/cough/0032.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019486.json b/conversations/conv_019486.json
deleted file mode 100644
index 1fcdca75c01785e662d02e1bc43f47daf8bcdaa9..0000000000000000000000000000000000000000
--- a/conversations/conv_019486.json
+++ /dev/null
@@ -1,180 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "duration_frames": 72684,
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\ No newline at end of file
diff --git a/conversations/conv_019490.json b/conversations/conv_019490.json
deleted file mode 100644
index c041bf1d6484927a39320478031b9d5546b00f56..0000000000000000000000000000000000000000
--- a/conversations/conv_019490.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_019497.json b/conversations/conv_019497.json
deleted file mode 100644
index c6f5662ecd7014c7fee21cc590472c6158afdd2c..0000000000000000000000000000000000000000
--- a/conversations/conv_019497.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_019500.json b/conversations/conv_019500.json
deleted file mode 100644
index 1ede265880105c93750b4f21a53b2ce37fbee048..0000000000000000000000000000000000000000
--- a/conversations/conv_019500.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3895/cough/0064.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "6709"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019501.json b/conversations/conv_019501.json
deleted file mode 100644
index 6b55fdf1c2636a21cdff04708ab7115fe15a5433..0000000000000000000000000000000000000000
--- a/conversations/conv_019501.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1084-151395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-151395.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.9278422440490868,
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-      "real_speaker_id": "2339",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2339-181100.flac |",
-      "real_speaker_id": "2339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.498446567250403,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138656.flac |",
-      "real_speaker_id": "2319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.973812630858813,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2339-181101.flac |",
-      "real_speaker_id": "2339",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2339-181100.flac |",
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-      "position_frames": 72059
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_019516.json b/conversations/conv_019516.json
deleted file mode 100644
index db116ea4abd757df7a1271c1ee14dacb8a2c4ca4..0000000000000000000000000000000000000000
--- a/conversations/conv_019516.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "1283",
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-      "real_speaker_id": "114",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.94146895766874,
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-      "utterance_id": "1183-124566",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-124566.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-136983.flac |",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_019520.json b/conversations/conv_019520.json
deleted file mode 100644
index 7414b2b4f7d947d7ba45d1eabf4b19a2e70176fa..0000000000000000000000000000000000000000
--- a/conversations/conv_019520.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
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-      "speaker_id": "1322"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019536.json b/conversations/conv_019536.json
deleted file mode 100644
index 1c97a689d85c0a832d8fd26907074cca9fc83a08..0000000000000000000000000000000000000000
--- a/conversations/conv_019536.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "start_time": 27.740603959875177,
-      "speaker_id": "585"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_019541.json b/conversations/conv_019541.json
deleted file mode 100644
index a6edbbf3bcb56cb3be199d9e9cc441aefd143ab9..0000000000000000000000000000000000000000
--- a/conversations/conv_019541.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5436.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5438.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 82530
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.2623578944382,
-      "end_time": 29.061163365324994,
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-      "overlap": false,
-      "utterance_id": "3045-163406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-163406.flac |",
-      "real_speaker_id": "3045",
-      "position_frames": 99495
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.421892036836763,
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-      "duration": 1.5781079631632373,
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-      "utterance_id": "3088-5441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5441.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_019556.json b/conversations/conv_019556.json
deleted file mode 100644
index 718820f57c8cdbec6840133ea44bda3ab5f060eb..0000000000000000000000000000000000000000
--- a/conversations/conv_019556.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22179.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1776-142744.flac |",
-      "real_speaker_id": "1776",
-      "position_frames": 95786
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-  "foreground_events": [
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-      "speaker_id": "1776"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019557.json b/conversations/conv_019557.json
deleted file mode 100644
index a10c606846ae915619e340e0bfefeabd82203112..0000000000000000000000000000000000000000
--- a/conversations/conv_019557.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1931-156647",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1931-156647.flac |",
-      "real_speaker_id": "1931",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/392-289427.flac |",
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-      "real_speaker_id": "6482",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1931-156647.flac |",
-      "real_speaker_id": "1931",
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-    {
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-      "speaker_id": 2,
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-      "real_speaker_id": "6482",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1931-156647.flac |",
-      "real_speaker_id": "1931",
-      "position_frames": 179362
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "speaker_id": "1931"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019561.json b/conversations/conv_019561.json
deleted file mode 100644
index bc8988dc9179be176cc74c0d4b62b6ecce40f342..0000000000000000000000000000000000000000
--- a/conversations/conv_019561.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/976-131095.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122150.flac |",
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-      "position_frames": 74969
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "speaker_id": "976"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019577.json b/conversations/conv_019577.json
deleted file mode 100644
index e9fe1720afb64e1702e94ca83c6ade4962068c53..0000000000000000000000000000000000000000
--- a/conversations/conv_019577.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.314066690159309,
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-      "utterance_id": "511-131226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131226.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-109656.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.957026702630708,
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-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 15.090904287032261,
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-      "utterance_id": "511-131228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131228.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.604005889765997,
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-      "utterance_id": "7688-109656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-109656.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 73174
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.286935761084955,
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-      "utterance_id": "7117-86732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86732.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.01719525083472,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_019582.json b/conversations/conv_019582.json
deleted file mode 100644
index 56611baa03bafd85832a0016e484f9c4e08dec6f..0000000000000000000000000000000000000000
--- a/conversations/conv_019582.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.539285665418976,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-48224.flac |",
-      "real_speaker_id": "6583",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
-      "position_frames": 87361
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.39883933883523,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.958264080631583,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66463.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019585.json b/conversations/conv_019585.json
deleted file mode 100644
index 4f1453fa60614078b301bd2ede610347a0ba915a..0000000000000000000000000000000000000000
--- a/conversations/conv_019585.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-19132.flac |",
-      "real_speaker_id": "4064",
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "5266",
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-      "real_speaker_id": "4742",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "5266",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019593.json b/conversations/conv_019593.json
deleted file mode 100644
index d89eec2cebb0838823a36df68bc425a263220563..0000000000000000000000000000000000000000
--- a/conversations/conv_019593.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8226-274369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274369.flac |",
-      "real_speaker_id": "8226",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "26-495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019594.json b/conversations/conv_019594.json
deleted file mode 100644
index 675be0eae8d5b60d8ff8be4a7336941337e906f5..0000000000000000000000000000000000000000
--- a/conversations/conv_019594.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6135-41995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41995.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/114-129317.flac |",
-      "real_speaker_id": "114",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/114-129324.flac |",
-      "real_speaker_id": "114",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.861265480187825,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_019598.json b/conversations/conv_019598.json
deleted file mode 100644
index 1bbfd1c1cd3abc7625bd1285c0e465b56fa87431..0000000000000000000000000000000000000000
--- a/conversations/conv_019598.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2522",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294113.flac |",
-      "real_speaker_id": "8820",
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-      "real_speaker_id": "2522",
-      "position_frames": 143170
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
-      "position_frames": 234532
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_019602.json b/conversations/conv_019602.json
deleted file mode 100644
index c54a34b454478df6db5b4913d5f86e14e76f98be..0000000000000000000000000000000000000000
--- a/conversations/conv_019602.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_019605.json b/conversations/conv_019605.json
deleted file mode 100644
index 3246ef060e89bb41e439fffeb14b5ba04091af3c..0000000000000000000000000000000000000000
--- a/conversations/conv_019605.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7026-86943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86943.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "position_frames": 83165
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-  "background_events": [],
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-      "event_class": "Dishes",
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-      "duration": 1.44,
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-      "speaker_id": "7713"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_019609.json b/conversations/conv_019609.json
deleted file mode 100644
index cd539a8a1f9c66adf60e147750341a471cadbf61..0000000000000000000000000000000000000000
--- a/conversations/conv_019609.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "699-132864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132864.flac |",
-      "real_speaker_id": "699",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
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-      "overlap": false,
-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.73877599318726,
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-      "duration": 6.490683084570106,
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-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 86199
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.031695008805478,
-      "end_time": 32.0,
-      "duration": 4.968304991194522,
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-      "utterance_id": "4152-12926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 86973
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-      "start_time": 10.088645126558724
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019613.json b/conversations/conv_019613.json
deleted file mode 100644
index 5bc7b2f8b5b3f9a743eb8572f74eea5073c0ad83..0000000000000000000000000000000000000000
--- a/conversations/conv_019613.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7657-104717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
-      "real_speaker_id": "7657",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
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-      "position_frames": 173935
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6415-100596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-100596.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.90239612462875,
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-      "duration": 3.0976038753712487,
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-      "duration_frames": 49561,
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-      "utterance_id": "7657-104717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
-      "real_speaker_id": "7657",
-      "position_frames": 264923
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_019614.json b/conversations/conv_019614.json
deleted file mode 100644
index 9bf951cfad2b01f7198de937619b8ac4137179a9..0000000000000000000000000000000000000000
--- a/conversations/conv_019614.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.764939972590486,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-54612.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128344.flac |",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_019625.json b/conversations/conv_019625.json
deleted file mode 100644
index bd46abb022030934d898242519462183133c60ed..0000000000000000000000000000000000000000
--- a/conversations/conv_019625.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
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-      "duration_frames": 58212,
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-      "utterance_id": "218-131206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "speaker_id": "7823"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/218/laugh/0050.wav",
-      "duration": 0.84,
-      "start_time": 14.827181731202945,
-      "speaker_id": "218"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/218/cough/0067.wav",
-      "duration": 0.9911236638431689,
-      "start_time": 31.00887633615683,
-      "speaker_id": "218"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019628.json b/conversations/conv_019628.json
deleted file mode 100644
index b41e72ad5f01b840991ad6bce48aaf449f970427..0000000000000000000000000000000000000000
--- a/conversations/conv_019628.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.8498759229271355,
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-      "utterance_id": "8080-3961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-3961.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.583209734596941,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8875-293959.flac |",
-      "real_speaker_id": "8875",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-3961.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 77598
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.420631079495518,
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-      "overlap": false,
-      "utterance_id": "119-129515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129515.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.18421132347545,
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-      "utterance_id": "8080-3961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-3961.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 136746
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.092720878324293,
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-      "duration": 3.5009371916374814,
-      "start_frame": 433483,
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-      "utterance_id": "119-121722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-121722.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.735873155354483,
-      "end_time": 32.0,
-      "duration": 1.2641268446455172,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-3961.flac |",
-      "real_speaker_id": "8080",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
-      "duration": 1.5425898556552893,
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/119/laugh/0009.wav",
-      "duration": 0.9036489372650187,
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-    {
-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "8080"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019629.json b/conversations/conv_019629.json
deleted file mode 100644
index 67efec62cdf501d131735c6724911f223f2cc649..0000000000000000000000000000000000000000
--- a/conversations/conv_019629.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6088-34571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34571.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.377039091755643,
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-      "real_speaker_id": "5132",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "6088-34571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34571.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 90203
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5132-28304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-28304.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.76510640867413,
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-      "overlap": true,
-      "utterance_id": "479-107480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-107480.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.518898888156244,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-28304.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 72955
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "479"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5132/cough/0059.wav",
-      "duration": 0.45624968679234995,
-      "start_time": 31.280950444757607,
-      "speaker_id": "5132"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019633.json b/conversations/conv_019633.json
deleted file mode 100644
index cd017bb054aa94c58fa3683cff28389b4cfcb21d..0000000000000000000000000000000000000000
--- a/conversations/conv_019633.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7994-258960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258960.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.954595195389271,
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-      "overlap": true,
-      "utterance_id": "6269-66184",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66184.flac |",
-      "real_speaker_id": "6269",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
-      "real_speaker_id": "3553",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 18.357740207797388,
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-      "utterance_id": "6269-66185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66185.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.30303883251927,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258960.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 78986
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 0.34172877473616836,
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-      "utterance_id": "6269-66185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66185.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 103793
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "duration": 1.14,
-      "start_time": 3.225499986093674,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019643.json b/conversations/conv_019643.json
deleted file mode 100644
index dfbc62a303dcf839769ae32cc953b62168038688..0000000000000000000000000000000000000000
--- a/conversations/conv_019643.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.888284609436048,
-      "duration": 5.888284609436048,
-      "start_frame": 0,
-      "duration_frames": 94212,
-      "overlap": false,
-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.700797083140297,
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-      "duration_frames": 70149,
-      "overlap": true,
-      "utterance_id": "6550-65820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "32-4137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-4137.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53320.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21631.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5104/laugh/0092.wav",
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-      "speaker_id": "5104"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6550/laugh/0022.wav",
-      "duration": 0.656462531408475,
-      "start_time": 22.644117562499908,
-      "speaker_id": "6550"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019644.json b/conversations/conv_019644.json
deleted file mode 100644
index 9e625287e2ad185285d8bdfa5d528fe094916a76..0000000000000000000000000000000000000000
--- a/conversations/conv_019644.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6554718848064045,
-      "duration": 3.6554718848064045,
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-      "duration_frames": 58487,
-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.663742639373369,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110706.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 0
-    },
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-      "start_time": 10.152404336356597,
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-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 58487
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.972647075168034,
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-      "duration": 4.090493542462017,
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-      "overlap": false,
-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.36117771678498,
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-      "duration": 5.4009055177323955,
-      "start_frame": 341778,
-      "duration_frames": 86414,
-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 152100
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.241344387825443,
-      "end_time": 32.0,
-      "duration": 4.758655612174557,
-      "start_frame": 435861,
-      "duration_frames": 76138,
-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 238514
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
-      "duration": 15.55204081632653,
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-  "foreground_events": [
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 0.5031030728803016,
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-      "speaker_id": "7868"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
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-      "event_class": "cough",
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-      "duration": 1.0614134483836744,
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-      "speaker_id": "60"
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\ No newline at end of file
diff --git a/conversations/conv_019648.json b/conversations/conv_019648.json
deleted file mode 100644
index a9b939c686f5d337dfd36e19317da3057b49054b..0000000000000000000000000000000000000000
--- a/conversations/conv_019648.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.988165863332425,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 71190
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.131307044311015,
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-      "overlap": true,
-      "utterance_id": "8183-118119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8183-118119.flac |",
-      "real_speaker_id": "8183",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.081630579709607,
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-      "overlap": false,
-      "utterance_id": "5123-29120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.95162954440897,
-      "end_time": 32.0,
-      "duration": 4.04837045559103,
-      "start_frame": 447226,
-      "duration_frames": 64773,
-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 128593
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_7.wav",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.12,
-      "start_time": 19.902491023808185,
-      "speaker_id": "5123"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/960/laugh/0069.wav",
-      "duration": 0.7654463894481944,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/960/cough/0098.wav",
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-      "start_time": 31.483555322180585,
-      "speaker_id": "960"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019652.json b/conversations/conv_019652.json
deleted file mode 100644
index bd6e9c936970dd8f664a04c090aca1d6bf29bdaa..0000000000000000000000000000000000000000
--- a/conversations/conv_019652.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2162-164461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-164461.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
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-      "utterance_id": "2162-164461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-164461.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 69962
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "2162-185436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-185436.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.67960501880115,
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-      "real_speaker_id": "868",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "start_frame": 459132,
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-      "overlap": false,
-      "utterance_id": "2162-181961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-181961.flac |",
-      "real_speaker_id": "2162",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "2162"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/868/laugh/0014.wav",
-      "duration": 0.9764987620732347,
-      "start_time": 21.647718404436144,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2162/laugh/0021.wav",
-      "duration": 0.88,
-      "start_time": 27.705313293214015,
-      "speaker_id": "2162"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019655.json b/conversations/conv_019655.json
deleted file mode 100644
index 51695482efb3a800b097a19198127d45d3a35814..0000000000000000000000000000000000000000
--- a/conversations/conv_019655.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "4246-12544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12544.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "8152-258993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-258993.flac |",
-      "real_speaker_id": "8152",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "start_frame": 265260,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137589.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12544.flac |",
-      "real_speaker_id": "4246",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.147040958900142,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137589.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 69045
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8152/laugh/0064.wav",
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-      "speaker_id": "8152"
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\ No newline at end of file
diff --git a/conversations/conv_019664.json b/conversations/conv_019664.json
deleted file mode 100644
index 338a4efafe39d779edf83958c54b43ca10a86737..0000000000000000000000000000000000000000
--- a/conversations/conv_019664.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.408653805254676,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1494-138315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
-      "real_speaker_id": "1494",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
-      "real_speaker_id": "1494",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140072.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
-      "real_speaker_id": "1494",
-      "position_frames": 159564
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_019668.json b/conversations/conv_019668.json
deleted file mode 100644
index 0e9e9a931a19aacc80f39683684aa99705598a3e..0000000000000000000000000000000000000000
--- a/conversations/conv_019668.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
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-      "real_speaker_id": "60",
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-      "segment_id": "seg0003",
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_019672.json b/conversations/conv_019672.json
deleted file mode 100644
index c39ed8457d9ab379365bfb3c570e913da8f6373d..0000000000000000000000000000000000000000
--- a/conversations/conv_019672.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6051-54419.flac |",
-      "real_speaker_id": "6051",
-      "position_frames": 0
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-      "utterance_id": "5471-284429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-284429.flac |",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 71404
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6051-54421.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_019680.json b/conversations/conv_019680.json
deleted file mode 100644
index 99e6c05853aa3332dfb74b4522acc333b23d6a80..0000000000000000000000000000000000000000
--- a/conversations/conv_019680.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
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-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
-      "duration": 2.101749742061841,
-      "start_time": 26.377700989423065
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5123/laugh/0029.wav",
-      "duration": 0.6804177548617992,
-      "start_time": 6.160812709693659,
-      "speaker_id": "5123"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5123/laugh/0023.wav",
-      "duration": 1.9754461940227377,
-      "start_time": 22.307781642890056,
-      "speaker_id": "5123"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5123/cough/0096.wav",
-      "duration": 0.781981379335184,
-      "start_time": 16.340228412914364,
-      "speaker_id": "5123"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019687.json b/conversations/conv_019687.json
deleted file mode 100644
index 94b5e99e699b07a8dd7077d93b360bd338c3fbe7..0000000000000000000000000000000000000000
--- a/conversations/conv_019687.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.073143154349086,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.157001541680595,
-      "duration": 4.157001541680595,
-      "start_frame": 0,
-      "duration_frames": 66512,
-      "overlap": false,
-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.412648348348807,
-      "end_time": 8.788982375674468,
-      "duration": 4.376334027325662,
-      "start_frame": 70602,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102372.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.565922336762103,
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-      "duration": 4.7893246458821075,
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-      "duration_frames": 76629,
-      "overlap": false,
-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 66512
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.824225537524608,
-      "end_time": 19.483377672935617,
-      "duration": 4.659152135411011,
-      "start_frame": 237187,
-      "duration_frames": 74546,
-      "overlap": false,
-      "utterance_id": "7618-102372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102372.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 70021
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.565139808581858,
-      "end_time": 24.303056365119716,
-      "duration": 3.737916556537858,
-      "start_frame": 329042,
-      "duration_frames": 59806,
-      "overlap": false,
-      "utterance_id": "3221-9174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.765518611507108,
-      "end_time": 31.073143154349086,
-      "duration": 6.307624542841977,
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-      "duration_frames": 100921,
-      "overlap": false,
-      "utterance_id": "7170-291969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-291969.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.9447845804988662,
-      "start_time": 12.332536812407914
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3221/cough/0001.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7170/laugh/0099.wav",
-      "duration": 1.1315210090139003,
-      "start_time": 30.868478990986098,
-      "speaker_id": "7170"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019690.json b/conversations/conv_019690.json
deleted file mode 100644
index 52fb2f32fdc271cc2b7293f48baf4907fd5ab8ec..0000000000000000000000000000000000000000
--- a/conversations/conv_019690.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.176258822741623,
-      "duration": 5.176258822741623,
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-      "overlap": false,
-      "utterance_id": "637-127597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127597.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 10.21741455540389,
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-      "utterance_id": "3006-5698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5698.flac |",
-      "real_speaker_id": "3006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.514189464535278,
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-      "overlap": false,
-      "utterance_id": "3138-173544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 56916
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.609289634887794,
-      "end_time": 25.248592460470018,
-      "duration": 4.639302825582224,
-      "start_frame": 329748,
-      "duration_frames": 74228,
-      "overlap": false,
-      "utterance_id": "637-127579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127579.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.784212604956544,
-      "end_time": 32.0,
-      "duration": 6.215787395043456,
-      "start_frame": 412547,
-      "duration_frames": 99452,
-      "overlap": false,
-      "utterance_id": "3138-173544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 118976
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
-      "duration": 23.862059160958008,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-      "start_time": 5.3022879706255
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/637/laugh/0104.wav",
-      "duration": 0.84,
-      "start_time": 19.514271094700774,
-      "speaker_id": "637"
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-    {
-      "event_class": "cough",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "3138"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019691.json b/conversations/conv_019691.json
deleted file mode 100644
index 3ecf841aac506b3e9fa76f1dc99d26cf6c82772b..0000000000000000000000000000000000000000
--- a/conversations/conv_019691.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1647-142742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-142742.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.118847776777417,
-      "end_time": 9.041081122636548,
-      "duration": 3.922233345859132,
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-      "duration_frames": 62755,
-      "overlap": false,
-      "utterance_id": "5285-41928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5285-41928.flac |",
-      "real_speaker_id": "5285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 83169,
-      "overlap": false,
-      "utterance_id": "1647-142742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-142742.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 63689
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.036943625879232,
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-      "start_frame": 240591,
-      "duration_frames": 91972,
-      "overlap": false,
-      "utterance_id": "5285-41928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5285-41928.flac |",
-      "real_speaker_id": "5285",
-      "position_frames": 62755
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.45662495326095,
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-      "overlap": false,
-      "utterance_id": "1647-142742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-142742.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 146858
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.00319685000607,
-      "end_time": 29.007179161197694,
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-      "duration_frames": 48063,
-      "overlap": false,
-      "utterance_id": "6747-76101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76101.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.563232259051073,
-      "end_time": 32.0,
-      "duration": 2.436767740948927,
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-      "utterance_id": "1647-140649",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-140649.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5285/cough/0006.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1647/laugh/0056.wav",
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-      "start_time": 14.832766441298642,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1647/cough/0110.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019701.json b/conversations/conv_019701.json
deleted file mode 100644
index 534ddde3a20c2277c6f9ac090fff73d31dcbfd7e..0000000000000000000000000000000000000000
--- a/conversations/conv_019701.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.56472784895942,
-      "duration": 6.56472784895942,
-      "start_frame": 0,
-      "duration_frames": 105035,
-      "overlap": false,
-      "utterance_id": "4770-25951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4770-25951.flac |",
-      "real_speaker_id": "4770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.23195644769066,
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-      "duration": 3.0456357859123027,
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-      "utterance_id": "6131-229040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.60013902212667,
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-      "duration_frames": 97788,
-      "overlap": true,
-      "utterance_id": "6131-229040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 48730
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2393-144496.flac |",
-      "real_speaker_id": "2393",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-      "start_time": 6.787628219374735,
-      "speaker_id": "4770"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6131/cough/0014.wav",
-      "duration": 0.3690324393216189,
-      "start_time": 14.07430637106199,
-      "speaker_id": "6131"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4770/cough/0067.wav",
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-      "speaker_id": "4770"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019706.json b/conversations/conv_019706.json
deleted file mode 100644
index c091d0258caea5512092928c966b2bdc6f5986e2..0000000000000000000000000000000000000000
--- a/conversations/conv_019706.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1379-130529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1379-130529.flac |",
-      "real_speaker_id": "1379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.197778672902722,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
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-      "position_frames": 0
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-      "utterance_id": "4098-11547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11547.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.701292911040657,
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-      "duration_frames": 102190,
-      "overlap": false,
-      "utterance_id": "487-129440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 110317
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.42950321844596,
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-      "utterance_id": "1379-130486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1379-130486.flac |",
-      "real_speaker_id": "1379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.585259573774298,
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-      "duration": 0.41474042622570195,
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-      "duration_frames": 6635,
-      "overlap": false,
-      "utterance_id": "1379-130530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1379-130530.flac |",
-      "real_speaker_id": "1379",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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\ No newline at end of file
diff --git a/conversations/conv_019710.json b/conversations/conv_019710.json
deleted file mode 100644
index 63e1eb9b086204ae53c3929f6af3d2dbe2f797f2..0000000000000000000000000000000000000000
--- a/conversations/conv_019710.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12529.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121916.flac |",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3830-12529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12529.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 60765
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121914.flac |",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_019717.json b/conversations/conv_019717.json
deleted file mode 100644
index 003d454c3ece60fa0281663dae6424d1026858b0..0000000000000000000000000000000000000000
--- a/conversations/conv_019717.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "4773-25911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-25911.flac |",
-      "real_speaker_id": "4773",
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-      "real_speaker_id": "5386",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-25911.flac |",
-      "real_speaker_id": "4773",
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-    {
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 19680,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-25911.flac |",
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-  "background_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5386/laugh/0006.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019721.json b/conversations/conv_019721.json
deleted file mode 100644
index 8abe7120f7ed78928202afca7ee166721da1037c..0000000000000000000000000000000000000000
--- a/conversations/conv_019721.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8051-119902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8051-119902.flac |",
-      "real_speaker_id": "8051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4511-45511.flac |",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/593/laugh/0013.wav",
-      "duration": 1.64,
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-      "speaker_id": "8051"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019737.json b/conversations/conv_019737.json
deleted file mode 100644
index 49174cb7c207cd20629a9889fbb94c7458164b97..0000000000000000000000000000000000000000
--- a/conversations/conv_019737.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.611902236058643,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
-    },
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-      "start_time": 5.629982360154866,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
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\ No newline at end of file
diff --git a/conversations/conv_019740.json b/conversations/conv_019740.json
deleted file mode 100644
index 3feb84ad0dee54f4b0dfa001e63238816d9b02b5..0000000000000000000000000000000000000000
--- a/conversations/conv_019740.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1809",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 7.237292007790485,
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-      "real_speaker_id": "899",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126232.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 55343
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_019747.json b/conversations/conv_019747.json
deleted file mode 100644
index 56dc07f4bd9864b6fbcb27518db7189ab735a355..0000000000000000000000000000000000000000
--- a/conversations/conv_019747.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 2,
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-      "utterance_id": "8494-244431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244431.flac |",
-      "real_speaker_id": "8494",
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-    {
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "8494",
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-      "segment_id": "seg0005",
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-      "utterance_id": "8897-294724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8897-294724.flac |",
-      "real_speaker_id": "8897",
-      "position_frames": 79813
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_019751.json b/conversations/conv_019751.json
deleted file mode 100644
index d3671731eb90c3853654b15490907e0b0cb3304b..0000000000000000000000000000000000000000
--- a/conversations/conv_019751.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "end_time": 6.782415646696737,
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-      "utterance_id": "7436-97462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97462.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5299-34546.flac |",
-      "real_speaker_id": "5299",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97467.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97462.flac |",
-      "real_speaker_id": "7436",
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-      "real_speaker_id": "2339",
-      "position_frames": 69233
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-  "background_events": [
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-      "event_class": "laugh",
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-      "duration": 1.08,
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-}
\ No newline at end of file
diff --git a/conversations/conv_019756.json b/conversations/conv_019756.json
deleted file mode 100644
index 6609795eb8181a76dd4d53588d407aa283483495..0000000000000000000000000000000000000000
--- a/conversations/conv_019756.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1348",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304534.flac |",
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-      "utterance_id": "7730-304541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304541.flac |",
-      "real_speaker_id": "7730",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "1348-135826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1348-135826.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 23.309642827903893,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19219.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304541.flac |",
-      "real_speaker_id": "7730",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_019760.json b/conversations/conv_019760.json
deleted file mode 100644
index 6980142f3b3f63597e29263bc51448b328bed146..0000000000000000000000000000000000000000
--- a/conversations/conv_019760.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
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\ No newline at end of file
diff --git a/conversations/conv_019776.json b/conversations/conv_019776.json
deleted file mode 100644
index 0dbdc61674b1685affbd1030b3bb793db7a7441f..0000000000000000000000000000000000000000
--- a/conversations/conv_019776.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74243.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "real_speaker_id": "1040",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019783.json b/conversations/conv_019783.json
deleted file mode 100644
index dfccbe6d1b6392e76eba6b5de7e0de24b5b8cbf1..0000000000000000000000000000000000000000
--- a/conversations/conv_019783.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "7258-91905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91905.flac |",
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-      "real_speaker_id": "7594",
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\ No newline at end of file
diff --git a/conversations/conv_019795.json b/conversations/conv_019795.json
deleted file mode 100644
index 2aa2e03ed8a66220062f6fdf654e957bf9d2637d..0000000000000000000000000000000000000000
--- a/conversations/conv_019795.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "real_speaker_id": "6925",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_019799.json b/conversations/conv_019799.json
deleted file mode 100644
index 066e41504c7bb7fb2960ecceac0022b69ec4f7ba..0000000000000000000000000000000000000000
--- a/conversations/conv_019799.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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\ No newline at end of file
diff --git a/conversations/conv_019804.json b/conversations/conv_019804.json
deleted file mode 100644
index aedaf5ad8d811e4aabac4772b1bf71c1cb63b38b..0000000000000000000000000000000000000000
--- a/conversations/conv_019804.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_019805.json b/conversations/conv_019805.json
deleted file mode 100644
index 75df23e7bd29063c50e0949fb5a845297f524f8f..0000000000000000000000000000000000000000
--- a/conversations/conv_019805.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
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-      "speaker_id": "976"
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\ No newline at end of file
diff --git a/conversations/conv_019808.json b/conversations/conv_019808.json
deleted file mode 100644
index 68b81b9e9b4945419eb899c0d25975c7850d4ace..0000000000000000000000000000000000000000
--- a/conversations/conv_019808.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173556.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 0
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-      "utterance_id": "3571-173553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173553.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.48146383997251,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138656.flac |",
-      "real_speaker_id": "2319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.42657442612526,
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-      "utterance_id": "6701-71401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71401.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3571-173554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173554.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_019812.json b/conversations/conv_019812.json
deleted file mode 100644
index dc1ac02cae1d81d7f267098a00f40f4c70fa34d4..0000000000000000000000000000000000000000
--- a/conversations/conv_019812.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 89878
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_019824.json b/conversations/conv_019824.json
deleted file mode 100644
index 43f989e75563a315f07262e0222aa1c630dc746f..0000000000000000000000000000000000000000
--- a/conversations/conv_019824.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
-      "real_speaker_id": "2374",
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-    {
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_019828.json b/conversations/conv_019828.json
deleted file mode 100644
index 9819f27db31c5aa6a3ec20e4b59b66d4ac97a010..0000000000000000000000000000000000000000
--- a/conversations/conv_019828.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_019832.json b/conversations/conv_019832.json
deleted file mode 100644
index 0a0f05a3b2583cdc23e1c9ffc83f2e602f949c86..0000000000000000000000000000000000000000
--- a/conversations/conv_019832.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.352522024483026,
-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_019839.json b/conversations/conv_019839.json
deleted file mode 100644
index c508bda444a3bbeb74e18c663fa241ebd64c4c0f..0000000000000000000000000000000000000000
--- a/conversations/conv_019839.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 84655
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-}
\ No newline at end of file
diff --git a/conversations/conv_019845.json b/conversations/conv_019845.json
deleted file mode 100644
index 5c7594bb42f5330ee13a1c5dee38351cc3532ae5..0000000000000000000000000000000000000000
--- a/conversations/conv_019845.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_019849.json b/conversations/conv_019849.json
deleted file mode 100644
index c4fa6b7497b33056f796d02d1913029b0997f44d..0000000000000000000000000000000000000000
--- a/conversations/conv_019849.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6415-100596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-100596.flac |",
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-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_019852.json b/conversations/conv_019852.json
deleted file mode 100644
index 1941325a5caea7acd73768f445f6fdca06939991..0000000000000000000000000000000000000000
--- a/conversations/conv_019852.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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\ No newline at end of file
diff --git a/conversations/conv_019853.json b/conversations/conv_019853.json
deleted file mode 100644
index b9f6a6cdba0eddaf73b6b3cfda7ccd437f732006..0000000000000000000000000000000000000000
--- a/conversations/conv_019853.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_019865.json b/conversations/conv_019865.json
deleted file mode 100644
index f2080fca171a366a35f46990b7c008f4d90e03e8..0000000000000000000000000000000000000000
--- a/conversations/conv_019865.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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-  "num_speakers": 3,
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5049/laugh/0094.wav",
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-      "speaker_id": "5049"
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-    {
-      "event_class": "cough",
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-      "duration": 0.3977360176679131,
-      "start_time": 11.208552533079763,
-      "speaker_id": "5514"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5049/laugh/0118.wav",
-      "duration": 1.44,
-      "start_time": 19.972788227342573,
-      "speaker_id": "5049"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019869.json b/conversations/conv_019869.json
deleted file mode 100644
index c79cff0f42e2e7a15e4665363e0f3a684c844214..0000000000000000000000000000000000000000
--- a/conversations/conv_019869.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.174451864047392,
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-      "overlap": false,
-      "utterance_id": "157-121907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-121907.flac |",
-      "real_speaker_id": "157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.5527469017671267,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-121907.flac |",
-      "real_speaker_id": "157",
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-      "utterance_id": "8575-290349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290349.flac |",
-      "real_speaker_id": "8575",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.477713008233483,
-      "end_time": 21.34551913155834,
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-      "overlap": false,
-      "utterance_id": "157-121899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-121899.flac |",
-      "real_speaker_id": "157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.589985400128064,
-      "end_time": 27.10108473108494,
-      "duration": 5.511099330956873,
-      "start_frame": 345439,
-      "duration_frames": 88177,
-      "overlap": false,
-      "utterance_id": "8575-290349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290349.flac |",
-      "real_speaker_id": "8575",
-      "position_frames": 77626
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.479889590272776,
-      "end_time": 32.0,
-      "duration": 4.5201104097272236,
-      "start_frame": 439678,
-      "duration_frames": 72321,
-      "overlap": false,
-      "utterance_id": "5893-1312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5893-1312.flac |",
-      "real_speaker_id": "5893",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
-      "duration": 1.1251870156516866,
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-      "start_time": 2.031192299650874,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/157/cough/0020.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/157/laugh/0076.wav",
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-      "speaker_id": "157"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019873.json b/conversations/conv_019873.json
deleted file mode 100644
index d9a6b32c56f4737b939197e1e1321d13988437b3..0000000000000000000000000000000000000000
--- a/conversations/conv_019873.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50776.flac |",
-      "real_speaker_id": "5731",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 80492
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5731-50777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50777.flac |",
-      "real_speaker_id": "5731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.751497199167574,
-      "end_time": 24.208508707059366,
-      "duration": 3.457011507891793,
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-      "duration_frames": 55312,
-      "overlap": false,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 153567
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "83-3054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.056630423529114,
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-      "duration": 1.9433695764708858,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 208879
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5731/laugh/0099.wav",
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-      "speaker_id": "5731"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019878.json b/conversations/conv_019878.json
deleted file mode 100644
index 0773403d99852007aea809a19a1d15d7a0b09e7c..0000000000000000000000000000000000000000
--- a/conversations/conv_019878.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.60857631082418,
-  "num_speakers": 3,
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-      "utterance_id": "2769-176263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2769-176263.flac |",
-      "real_speaker_id": "2769",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6102-56178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56178.flac |",
-      "real_speaker_id": "6102",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2769-169619.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56178.flac |",
-      "real_speaker_id": "6102",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56178.flac |",
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-      "position_frames": 128496
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "overlap": true,
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-      "real_speaker_id": "1643",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_019881.json b/conversations/conv_019881.json
deleted file mode 100644
index 58d1a430dd745e51bbe32333cc6f70f84d22e1ff..0000000000000000000000000000000000000000
--- a/conversations/conv_019881.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7517-100442",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1737",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-142396.flac |",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_019886.json b/conversations/conv_019886.json
deleted file mode 100644
index be2b6a42a0f579dde5923361c65a0bdccf5aa427..0000000000000000000000000000000000000000
--- a/conversations/conv_019886.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-131742.flac |",
-      "real_speaker_id": "2137",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53320.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.058218056511002,
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-      "utterance_id": "2137-131751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-131751.flac |",
-      "real_speaker_id": "2137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.40592731636272,
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-      "overlap": false,
-      "utterance_id": "6550-65820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.310928681757762,
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-      "overlap": false,
-      "utterance_id": "2137-155944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-155944.flac |",
-      "real_speaker_id": "2137",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_019890.json b/conversations/conv_019890.json
deleted file mode 100644
index fe57528a9617fd1659dd383b5e25ef939b8d3513..0000000000000000000000000000000000000000
--- a/conversations/conv_019890.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168609.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168618.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 127153
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.078828471393233,
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-      "utterance_id": "3656-168648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168648.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.48,
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-}
\ No newline at end of file
diff --git a/conversations/conv_019891.json b/conversations/conv_019891.json
deleted file mode 100644
index 6bcf6121a788242aa79efec0724eb7a6cf53b73f..0000000000000000000000000000000000000000
--- a/conversations/conv_019891.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 55219
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112058.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 63369
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 113438
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8671/laugh/0092.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8671/laugh/0093.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8671/cough/0051.wav",
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-      "speaker_id": "8671"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019897.json b/conversations/conv_019897.json
deleted file mode 100644
index 994dbbcf82d984891f7b45ec4580b960b1480057..0000000000000000000000000000000000000000
--- a/conversations/conv_019897.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1058-133263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-133263.flac |",
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-      "position_frames": 0
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-      "utterance_id": "688-46588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-46588.flac |",
-      "real_speaker_id": "688",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-141789.flac |",
-      "real_speaker_id": "1636",
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\ No newline at end of file
diff --git a/conversations/conv_019900.json b/conversations/conv_019900.json
deleted file mode 100644
index 0f53746769f551b17b639f41cae3f35c740623d5..0000000000000000000000000000000000000000
--- a/conversations/conv_019900.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.282133944807036,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-161226.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_019916.json b/conversations/conv_019916.json
deleted file mode 100644
index 8c61c8b6511e038fe2167c9411c7bff341873f78..0000000000000000000000000000000000000000
--- a/conversations/conv_019916.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "7957",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6482-289558.flac |",
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-  "foreground_events": [
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-      "duration": 1.26,
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-}
\ No newline at end of file
diff --git a/conversations/conv_019917.json b/conversations/conv_019917.json
deleted file mode 100644
index 8935b7c152c226cdab419ace397fcb932b75ca22..0000000000000000000000000000000000000000
--- a/conversations/conv_019917.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.414195585866114,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "6006-57831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.885857819063401,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134886.flac |",
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-      "utterance_id": "5246-5084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
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-    },
-    {
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-      "real_speaker_id": "6006",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
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-  ],
-  "background_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_019920.json b/conversations/conv_019920.json
deleted file mode 100644
index e794faf87e24b6eaa19c23a816107ac07c1f6454..0000000000000000000000000000000000000000
--- a/conversations/conv_019920.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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\ No newline at end of file
diff --git a/conversations/conv_019936.json b/conversations/conv_019936.json
deleted file mode 100644
index e693177213deabcf4d4e59177b8bd5a633d527fd..0000000000000000000000000000000000000000
--- a/conversations/conv_019936.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "5984-56840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56840.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_019940.json b/conversations/conv_019940.json
deleted file mode 100644
index 2a045840d0b575014ddf3a00e71335381462a98f..0000000000000000000000000000000000000000
--- a/conversations/conv_019940.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "real_speaker_id": "1225",
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_019941.json b/conversations/conv_019941.json
deleted file mode 100644
index 5a91d16290bbde06c0e2b6ec1ebb99e2528af89f..0000000000000000000000000000000000000000
--- a/conversations/conv_019941.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "speaker_id": "1265"
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-      "event_class": "laugh",
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-      "start_time": 29.51596074815561,
-      "speaker_id": "7416"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_019957.json b/conversations/conv_019957.json
deleted file mode 100644
index ea49156b8aa45198796420df25e25c8c1c688359..0000000000000000000000000000000000000000
--- a/conversations/conv_019957.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.11343772886791,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54666.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 64149
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5606-54667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.69063036161631,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 150695
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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\ No newline at end of file
diff --git a/conversations/conv_019961.json b/conversations/conv_019961.json
deleted file mode 100644
index c7383cf51079ca7f3696d901e41584ec3cc2a848..0000000000000000000000000000000000000000
--- a/conversations/conv_019961.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "296-142727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-142727.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
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-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 65426
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_019977.json b/conversations/conv_019977.json
deleted file mode 100644
index fac13b1b89667bcb638ea70c1ede0362ca90a9da..0000000000000000000000000000000000000000
--- a/conversations/conv_019977.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-1061.flac |",
-      "real_speaker_id": "1430",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_019982.json b/conversations/conv_019982.json
deleted file mode 100644
index c349af2fe2699073baf77c31c1c8320c9b2a8008..0000000000000000000000000000000000000000
--- a/conversations/conv_019982.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.81568240532258,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6115-58778.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-130131.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.4228733239497577,
-      "start_time": 21.291439432247607,
-      "speaker_id": "690"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019985.json b/conversations/conv_019985.json
deleted file mode 100644
index e613173ab150534b28125af894cd87adc278490d..0000000000000000000000000000000000000000
--- a/conversations/conv_019985.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1456-130545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130545.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.558030547156928,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
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-      "utterance_id": "1456-130545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130545.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 79525
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-    {
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-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.299003894944434,
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-      "utterance_id": "1456-130544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130544.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.158826285839748,
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-      "utterance_id": "118-47824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.069990377219565,
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-      "utterance_id": "118-47824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
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-      "position_frames": 70912
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_019993.json b/conversations/conv_019993.json
deleted file mode 100644
index 3e18b8bc172681ae200074ed668cbc622de99245..0000000000000000000000000000000000000000
--- a/conversations/conv_019993.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-891.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 73526
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34600.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6209-34599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34599.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3926/laugh/0118.wav",
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-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 30.48,
-      "speaker_id": "6209"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_019994.json b/conversations/conv_019994.json
deleted file mode 100644
index 851b1047c822980c0311506f12e993c438eb3625..0000000000000000000000000000000000000000
--- a/conversations/conv_019994.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "1748-1560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1560.flac |",
-      "real_speaker_id": "1748",
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-      "real_speaker_id": "1992",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1560.flac |",
-      "real_speaker_id": "1748",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1748/laugh/0006.wav",
-      "duration": 1.12,
-      "start_time": 0,
-      "speaker_id": "1748"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1748/cough/0003.wav",
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-      "duration": 1.36,
-      "start_time": 12.390670748672814,
-      "speaker_id": "1748"
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-}
\ No newline at end of file
diff --git a/conversations/conv_019998.json b/conversations/conv_019998.json
deleted file mode 100644
index 19a5382a45a4045f9f773a83e3e0c6ce7fb58bfb..0000000000000000000000000000000000000000
--- a/conversations/conv_019998.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1052-139308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1052-139308.flac |",
-      "real_speaker_id": "1052",
-      "position_frames": 0
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-    {
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-      "utterance_id": "1769-143485",
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-      "overlap": true,
-      "utterance_id": "1769-143485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143485.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 55769
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.06700869701954,
-      "end_time": 32.0,
-      "duration": 4.9329913029804615,
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-      "duration_frames": 78927,
-      "overlap": false,
-      "utterance_id": "1052-132776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1052-132776.flac |",
-      "real_speaker_id": "1052",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_5.wav",
-      "duration": 0.3202721088435374,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1769/laugh/0118.wav",
-      "duration": 1.56,
-      "start_time": 6.10626989957912,
-      "speaker_id": "1769"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1769/laugh/0047.wav",
-      "duration": 1.12,
-      "start_time": 19.91312338356705,
-      "speaker_id": "1769"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1052/laugh/0114.wav",
-      "duration": 1.1419419682423293,
-      "start_time": 25.811283767367566,
-      "speaker_id": "1052"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020006.json b/conversations/conv_020006.json
deleted file mode 100644
index 0bc99a4657df42a2a19431a2c9abecafe957c60a..0000000000000000000000000000000000000000
--- a/conversations/conv_020006.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.369049328787987,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.280960131091221,
-      "duration": 3.280960131091221,
-      "start_frame": 0,
-      "duration_frames": 52495,
-      "overlap": false,
-      "utterance_id": "7585-96245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.967254389911804,
-      "end_time": 10.46569189170976,
-      "duration": 6.498437501797957,
-      "start_frame": 63476,
-      "duration_frames": 103975,
-      "overlap": false,
-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.897413150737615,
-      "end_time": 16.459193861898477,
-      "duration": 5.561780711160864,
-      "start_frame": 174358,
-      "duration_frames": 88988,
-      "overlap": true,
-      "utterance_id": "7585-96245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 52495
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.44448960835101,
-      "end_time": 22.347789373608006,
-      "duration": 4.903299765256995,
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-      "duration_frames": 78452,
-      "overlap": false,
-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 103975
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.78582296699258,
-      "end_time": 26.692456012886026,
-      "duration": 3.9066330458934475,
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-      "duration_frames": 62506,
-      "overlap": false,
-      "utterance_id": "6368-39664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-39664.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.328344098979727,
-      "end_time": 30.369049328787987,
-      "duration": 4.04070522980826,
-      "start_frame": 421253,
-      "duration_frames": 64651,
-      "overlap": true,
-      "utterance_id": "7585-96245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 141483
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 26.553401360544218,
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "speaker_id": "7346"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 16.5845264487651,
-      "speaker_id": "7585"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7585/cough/0037.wav",
-      "duration": 1.2,
-      "start_time": 16.62507296838626,
-      "speaker_id": "7585"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7346/cough/0062.wav",
-      "duration": 1.388699533310102,
-      "start_time": 20.02561277532489,
-      "speaker_id": "7346"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020007.json b/conversations/conv_020007.json
deleted file mode 100644
index 499ab98737d3e4d1595f0dab72d9a5900fff8d86..0000000000000000000000000000000000000000
--- a/conversations/conv_020007.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "200-126784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-126784.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.609957534676944,
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-      "overlap": true,
-      "utterance_id": "200-124140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124140.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "373-130977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130977.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.444941400441422,
-      "end_time": 22.084275073227047,
-      "duration": 4.639333672785626,
-      "start_frame": 279119,
-      "duration_frames": 74229,
-      "overlap": false,
-      "utterance_id": "200-124139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124139.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.800259296215028,
-      "end_time": 27.258059488820315,
-      "duration": 4.457800192605287,
-      "start_frame": 364804,
-      "duration_frames": 71324,
-      "overlap": false,
-      "utterance_id": "7335-290365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7335-290365.flac |",
-      "real_speaker_id": "7335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.8288691748493,
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-      "duration": 4.171130825150701,
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-      "overlap": false,
-      "utterance_id": "200-124140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124140.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 72212
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
-      "duration": 2.249795918367347,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/200/laugh/0065.wav",
-      "duration": 1.0,
-      "start_time": 7.761654149578269,
-      "speaker_id": "200"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020010.json b/conversations/conv_020010.json
deleted file mode 100644
index d73cf5ac0f68e64e0b21988c952a8e90824d5274..0000000000000000000000000000000000000000
--- a/conversations/conv_020010.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.7988209291497155,
-      "duration": 4.7988209291497155,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6025-56405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-56405.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.3938752335459075,
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-      "start_frame": 86302,
-      "duration_frames": 90209,
-      "overlap": false,
-      "utterance_id": "969-134363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134363.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.837764222039947,
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-      "duration": 4.7038797686757645,
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-      "duration_frames": 75262,
-      "overlap": false,
-      "utterance_id": "7783-107486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107486.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.90387638068362,
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-      "overlap": false,
-      "utterance_id": "969-134362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134362.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.31122437890521,
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-      "overlap": false,
-      "utterance_id": "7783-107486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107486.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 75262
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.750494473335678,
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-      "duration": 1.249505526664322,
-      "start_frame": 492007,
-      "duration_frames": 19992,
-      "overlap": false,
-      "utterance_id": "7783-107486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107486.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 180999
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7783/laugh/0035.wav",
-      "duration": 0.9966780626915588,
-      "start_time": 16.739883105,
-      "speaker_id": "7783"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7783/laugh/0032.wav",
-      "duration": 1.4078821326791635,
-      "start_time": 29.970154147636684,
-      "speaker_id": "7783"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7783/cough/0039.wav",
-      "duration": 0.867178439780333,
-      "start_time": 22.34502421315315,
-      "speaker_id": "7783"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020017.json b/conversations/conv_020017.json
deleted file mode 100644
index 4256273300d8860d24eb34cc3d42ec84bd34a4d4..0000000000000000000000000000000000000000
--- a/conversations/conv_020017.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.973766874723051,
-      "duration": 3.973766874723051,
-      "start_frame": 0,
-      "duration_frames": 63580,
-      "overlap": false,
-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.759415424811561,
-      "end_time": 10.980350796072294,
-      "duration": 6.220935371260732,
-      "start_frame": 76150,
-      "duration_frames": 99534,
-      "overlap": false,
-      "utterance_id": "6388-64974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6388-64974.flac |",
-      "real_speaker_id": "6388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 81010,
-      "overlap": false,
-      "utterance_id": "6388-64974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6388-64974.flac |",
-      "real_speaker_id": "6388",
-      "position_frames": 99534
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 63580
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "6388",
-      "position_frames": 180544
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_020026.json b/conversations/conv_020026.json
deleted file mode 100644
index a8f9676862a3edd54ae644f553afa176c11ff0ee..0000000000000000000000000000000000000000
--- a/conversations/conv_020026.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.60125559104402,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "110-2",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.894109687520227,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
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-      "speaker_id": 0,
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-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.655285694500105,
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-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 68283
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.560565554915126,
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-      "duration_frames": 80651,
-      "overlap": false,
-      "utterance_id": "294-130872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 86608
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "event_class": "Dog",
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-      "speaker_id": "7522"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020030.json b/conversations/conv_020030.json
deleted file mode 100644
index 760841bb4cd28689c44ada84d895f65fdc69a868..0000000000000000000000000000000000000000
--- a/conversations/conv_020030.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4868.flac |",
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-      "utterance_id": "2574-128278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128278.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4876.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.152135515795266,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 73896
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5252-4868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4868.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 79503
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5252/laugh/0127.wav",
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-      "duration": 1.28,
-      "start_time": 27.5403572205835,
-      "speaker_id": "5724"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020047.json b/conversations/conv_020047.json
deleted file mode 100644
index 70f7f938d25df55a5af240c9cdd74f9a79ce18a6..0000000000000000000000000000000000000000
--- a/conversations/conv_020047.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7197-66277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.193625389302249,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4152-12926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.049402214807845,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 69261
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.285033520879196,
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-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.027623344595305,
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-      "utterance_id": "4152-5710",
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-      "real_speaker_id": "4152",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 133450
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-  ],
-  "background_events": [
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7197/laugh/0017.wav",
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-      "start_time": 0,
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-    },
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.77541547159066,
-      "start_time": 27.52460802198486,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 28.812691380629424,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7197/cough/0013.wav",
-      "duration": 0.396431873705247,
-      "start_time": 31.603568126294753,
-      "speaker_id": "7197"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020051.json b/conversations/conv_020051.json
deleted file mode 100644
index 3446a2b3c8617ade7d602d6dd74a8c9e273da802..0000000000000000000000000000000000000000
--- a/conversations/conv_020051.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6746-72302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6746-72302.flac |",
-      "real_speaker_id": "6746",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.5453850546186794,
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-      "real_speaker_id": "474",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
-      "real_speaker_id": "7764",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-134809.flac |",
-      "real_speaker_id": "474",
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-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.12511622992367,
-      "end_time": 32.0,
-      "duration": 2.8748837700763303,
-      "start_frame": 466001,
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-      "overlap": false,
-      "utterance_id": "7764-106805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
-      "real_speaker_id": "7764",
-      "position_frames": 153638
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
-      "duration": 0.6236734693877551,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6746/laugh/0054.wav",
-      "duration": 0.8842227935882809,
-      "start_time": 3.396424269759068,
-      "speaker_id": "6746"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7764/laugh/0032.wav",
-      "duration": 1.32,
-      "start_time": 6.167150456671909,
-      "speaker_id": "7764"
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-      "event_class": "cough",
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-      "speaker_id": "7764"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/474/laugh/0032.wav",
-      "duration": 1.72,
-      "start_time": 10.046370851630188,
-      "speaker_id": "474"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7764/laugh/0012.wav",
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-      "start_time": 27.715334817132238,
-      "speaker_id": "7764"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020067.json b/conversations/conv_020067.json
deleted file mode 100644
index 6729810a682cb3bed1cd65c49600d6897fcf5e4c..0000000000000000000000000000000000000000
--- a/conversations/conv_020067.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8891972415375196,
-      "duration": 3.8891972415375196,
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-      "duration_frames": 62227,
-      "overlap": false,
-      "utterance_id": "1337-10673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-10673.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.411535012410356,
-      "end_time": 9.300916552577823,
-      "duration": 4.8893815401674665,
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-      "utterance_id": "8113-301694",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301694.flac |",
-      "real_speaker_id": "8113",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.653347356337985,
-      "end_time": 16.718101559690254,
-      "duration": 6.064754203352271,
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-      "duration_frames": 97036,
-      "overlap": false,
-      "utterance_id": "1337-10674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-10674.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.92151955076727,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301694.flac |",
-      "real_speaker_id": "8113",
-      "position_frames": 78230
-    },
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-10674.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 97036
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-      "utterance_id": "8113-301693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301693.flac |",
-      "real_speaker_id": "8113",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.73034608510852,
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-      "utterance_id": "1225-129526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129526.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "1225"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020071.json b/conversations/conv_020071.json
deleted file mode 100644
index 6da585a302f58004750538e6fb12fca18cfbfd61..0000000000000000000000000000000000000000
--- a/conversations/conv_020071.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "overlap": false,
-      "utterance_id": "365-126320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126320.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.610837372355851,
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-      "utterance_id": "781-126737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-126737.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "365-84340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
-      "real_speaker_id": "365",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.410474834538341,
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-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.606139632174973,
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-      "duration": 5.011792286420187,
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-      "duration_frames": 80188,
-      "overlap": false,
-      "utterance_id": "781-127518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.5767254103069,
-      "end_time": 32.0,
-      "duration": 6.423274589693101,
-      "start_frame": 409227,
-      "duration_frames": 102772,
-      "overlap": false,
-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 65198
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_1.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/365/laugh/0036.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 14.180371391603966,
-      "speaker_id": "1098"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1098/cough/0066.wav",
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-    },
-    {
-      "event_class": "laugh",
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-      "start_time": 18.855529110946215,
-      "speaker_id": "781"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020083.json b/conversations/conv_020083.json
deleted file mode 100644
index 836ed8ab1550172b6c6a5412c7861e3777711bda..0000000000000000000000000000000000000000
--- a/conversations/conv_020083.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 3.8441958877156255,
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "127-129385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2156-82458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-82458.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.060625994453835,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 61507
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.27626602890894,
-      "end_time": 23.961509291366244,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 77750,
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-      "utterance_id": "2156-82458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-82458.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 64408
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.456412869386877,
-      "end_time": 32.0,
-      "duration": 1.5435871306131226,
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-      "duration_frames": 24697,
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-      "utterance_id": "127-129390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 58963
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "duration": 4.206647680090816,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6925/laugh/0083.wav",
-      "duration": 1.32,
-      "start_time": 0.4688199612854226,
-      "speaker_id": "6925"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/127/laugh/0038.wav",
-      "duration": 1.34,
-      "start_time": 3.255045961995934,
-      "speaker_id": "127"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2156/laugh/0032.wav",
-      "duration": 1.4,
-      "start_time": 8.2031405079066,
-      "speaker_id": "2156"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020084.json b/conversations/conv_020084.json
deleted file mode 100644
index 984b24601f9d0a61dc7d3e96c2e8df9e9962bd2c..0000000000000000000000000000000000000000
--- a/conversations/conv_020084.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.268679975093303,
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-      "start_frame": 0,
-      "duration_frames": 100298,
-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.582735938300941,
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-      "duration_frames": 110992,
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-      "utterance_id": "7786-115688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-115688.flac |",
-      "real_speaker_id": "7786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.113594688811311,
-      "end_time": 20.820186353971778,
-      "duration": 6.706591665160465,
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-      "duration_frames": 107305,
-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 100298
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.932790450232048,
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-      "duration_frames": 98963,
-      "overlap": false,
-      "utterance_id": "7786-118675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-118675.flac |",
-      "real_speaker_id": "7786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.242370999253815,
-      "end_time": 32.0,
-      "duration": 4.757629000746185,
-      "start_frame": 435877,
-      "duration_frames": 76122,
-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 207603
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
-      "duration": 4.320847447516629,
-      "start_time": 10.620317950953988
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.48,
-      "start_time": 13.595762346615508,
-      "speaker_id": "7786"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2056/cough/0050.wav",
-      "duration": 1.19414087202422,
-      "start_time": 20.871488202564095,
-      "speaker_id": "2056"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7786/cough/0022.wav",
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-      "speaker_id": "7786"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020088.json b/conversations/conv_020088.json
deleted file mode 100644
index d868144060252a7d4acddd57a5208e166a1e3988..0000000000000000000000000000000000000000
--- a/conversations/conv_020088.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.816069904098576,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1100-135264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-135264.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.861274798078853,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-167590.flac |",
-      "real_speaker_id": "3132",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.60536049790581,
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-      "overlap": true,
-      "utterance_id": "1100-135264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-135264.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 64134
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.828415836563432,
-      "end_time": 20.227100507363343,
-      "duration": 5.398684670799911,
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-      "duration_frames": 86378,
-      "overlap": false,
-      "utterance_id": "7848-275169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275169.flac |",
-      "real_speaker_id": "7848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.73915877380192,
-      "end_time": 25.082390116796233,
-      "duration": 4.343231342994314,
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-      "duration_frames": 69491,
-      "overlap": true,
-      "utterance_id": "1100-124547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-124547.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.7465298205443,
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-      "duration": 6.069540083554278,
-      "start_frame": 411944,
-      "duration_frames": 97112,
-      "overlap": false,
-      "utterance_id": "7848-275129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275129.flac |",
-      "real_speaker_id": "7848",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020092.json b/conversations/conv_020092.json
deleted file mode 100644
index 1aa31691721598f3c7ca7d725085e81e51cd75b5..0000000000000000000000000000000000000000
--- a/conversations/conv_020092.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.88059435999747,
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-      "overlap": false,
-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.2401364004432,
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-      "utterance_id": "5379-15784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-15784.flac |",
-      "real_speaker_id": "5379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 86762,
-      "overlap": false,
-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 78089
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.672016444763948,
-      "end_time": 21.357121040617816,
-      "duration": 3.6851045958538693,
-      "start_frame": 282752,
-      "duration_frames": 58961,
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-      "utterance_id": "5379-15784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-15784.flac |",
-      "real_speaker_id": "5379",
-      "position_frames": 100421
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 164851
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.48828114077435,
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-      "duration_frames": 49567,
-      "overlap": false,
-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 251696
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.533507640296044,
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-      "duration": 0.4664923597039561,
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-      "utterance_id": "5379-44344",
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-      "real_speaker_id": "5379",
-      "position_frames": 0
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-  "background_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5379/cough/0008.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1731/laugh/0057.wav",
-      "duration": 1.24,
-      "start_time": 28.694017324139793,
-      "speaker_id": "1731"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020095.json b/conversations/conv_020095.json
deleted file mode 100644
index d7b6f7661dc099e54dac4efafe3ced93c831d382..0000000000000000000000000000000000000000
--- a/conversations/conv_020095.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.638197829680074,
-      "duration": 5.638197829680074,
-      "start_frame": 0,
-      "duration_frames": 90211,
-      "overlap": false,
-      "utterance_id": "3488-85273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3488-85273.flac |",
-      "real_speaker_id": "3488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.179461934917686,
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-      "duration_frames": 111705,
-      "overlap": false,
-      "utterance_id": "3228-4691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4691.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2136-5140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5140.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.825072638717547,
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-      "position_frames": 90211
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3228",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "cough",
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-      "speaker_id": "3488"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020102.json b/conversations/conv_020102.json
deleted file mode 100644
index beca04e6d723de155e9305ddb1af676df48e2da1..0000000000000000000000000000000000000000
--- a/conversations/conv_020102.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
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-      "real_speaker_id": "4706",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86713.flac |",
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-      "speaker_id": 0,
-      "start_time": 21.538815170938964,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "4706",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_020114.json b/conversations/conv_020114.json
deleted file mode 100644
index 35efd363ec87091ee890948893ac1cc5b9d21ce4..0000000000000000000000000000000000000000
--- a/conversations/conv_020114.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.176983141090403,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8262-279161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
-      "real_speaker_id": "8262",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_020115.json b/conversations/conv_020115.json
deleted file mode 100644
index 7fd73136f73ab72b6dbf59103d7e80990190dcd3..0000000000000000000000000000000000000000
--- a/conversations/conv_020115.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286681.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_020118.json b/conversations/conv_020118.json
deleted file mode 100644
index 3f15a2f0b3c371c8f2a35c0d5bb17507e5777b16..0000000000000000000000000000000000000000
--- a/conversations/conv_020118.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.31919896793327,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1845-145088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145088.flac |",
-      "real_speaker_id": "1845",
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-    {
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-      "utterance_id": "1845-145083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145083.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 24.942350984889,
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-      "utterance_id": "1845-145083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145083.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 74917
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7540/laugh/0108.wav",
-      "duration": 1.08,
-      "start_time": 6.222202859778385,
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1845/cough/0013.wav",
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-      "duration": 0.3250169708161355,
-      "start_time": 31.48040510697764,
-      "speaker_id": "1845"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020122.json b/conversations/conv_020122.json
deleted file mode 100644
index 686331bebebb4e5438314f7f3c866be8719bd5af..0000000000000000000000000000000000000000
--- a/conversations/conv_020122.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 89060,
-      "overlap": false,
-      "utterance_id": "6060-58090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-58090.flac |",
-      "real_speaker_id": "6060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.1481927167272765,
-      "end_time": 12.128816269844732,
-      "duration": 5.980623553117455,
-      "start_frame": 98371,
-      "duration_frames": 95689,
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-      "utterance_id": "568-126452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-126452.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 13.04103601933462,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-106611.flac |",
-      "real_speaker_id": "6060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.78505391476581,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-127952.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.56239429766386,
-      "end_time": 27.21473057990403,
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-      "utterance_id": "6060-58090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-58090.flac |",
-      "real_speaker_id": "6060",
-      "position_frames": 89060
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.947522181860293,
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-      "duration": 4.052477818139707,
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-      "overlap": false,
-      "utterance_id": "4799-25949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "start_time": 10.689139944362159
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 1.4,
-      "start_time": 17.840238768487527,
-      "speaker_id": "6060"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/568/laugh/0028.wav",
-      "duration": 0.555261015112163,
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-      "speaker_id": "568"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/568/cough/0053.wav",
-      "duration": 1.0231428254048638,
-      "start_time": 21.336638228422505,
-      "speaker_id": "568"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020129.json b/conversations/conv_020129.json
deleted file mode 100644
index 10c8a5b49d996a9aca4f76c98142d8b6344c6a7b..0000000000000000000000000000000000000000
--- a/conversations/conv_020129.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7839-109872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109872.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-122789.flac |",
-      "real_speaker_id": "166",
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-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 18.092654143060713,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-126302.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 95287
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.487388067953752,
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-      "start_frame": 487798,
-      "duration_frames": 24201,
-      "overlap": false,
-      "utterance_id": "166-352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_4.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 10.30122831912025,
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-    {
-      "event_class": "cough",
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-      "duration": 0.94,
-      "start_time": 10.846563913302244,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/166/laugh/0096.wav",
-      "duration": 0.6572669835777352,
-      "start_time": 23.87445517625947,
-      "speaker_id": "166"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/166/laugh/0100.wav",
-      "duration": 1.36,
-      "start_time": 30.5699569121484,
-      "speaker_id": "166"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020134.json b/conversations/conv_020134.json
deleted file mode 100644
index bafd0825794e1e3c1448c158c07e2633ada20bfb..0000000000000000000000000000000000000000
--- a/conversations/conv_020134.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.522389716756507,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "949-134660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134660.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.359867484414217,
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-      "duration": 4.278715823870824,
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-      "utterance_id": "4217-9955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9955.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.502240831994516,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9052.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.88190105602093,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134660.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 88358
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.654581368014696,
-      "end_time": 29.75681434182927,
-      "duration": 5.102232973814573,
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-      "duration_frames": 81635,
-      "overlap": false,
-      "utterance_id": "4217-9955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9955.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 68459
-    },
-    {
-      "segment_id": "seg0005",
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-      "end_time": 32.0,
-      "duration": 1.9754900188100848,
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-      "utterance_id": "949-138545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-138545.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
-    {
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "speaker_id": "949"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020138.json b/conversations/conv_020138.json
deleted file mode 100644
index 29c36fdada3d50830550d713099519677a1d9f5d..0000000000000000000000000000000000000000
--- a/conversations/conv_020138.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.37997796222411,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6937-112761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-112761.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-161962.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.162902678356023,
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-      "duration_frames": 104927,
-      "overlap": false,
-      "utterance_id": "6937-112761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-112761.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 109075
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.30110670820538,
-      "end_time": 25.207350360299436,
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-      "utterance_id": "681-161945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-161945.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.49218410759748,
-      "end_time": 31.37997796222411,
-      "duration": 4.887793854626629,
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-      "duration_frames": 78204,
-      "overlap": false,
-      "utterance_id": "6937-262269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-262269.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.4436765649157057,
-      "start_time": 5.19099531895278
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/681/laugh/0041.wav",
-      "duration": 1.64,
-      "start_time": 23.091212136226357,
-      "speaker_id": "681"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6937/laugh/0058.wav",
-      "duration": 0.8,
-      "start_time": 25.403190325115148,
-      "speaker_id": "6937"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020142.json b/conversations/conv_020142.json
deleted file mode 100644
index cc659ed2955d6d32e00d71fed1f13a7590acd8e7..0000000000000000000000000000000000000000
--- a/conversations/conv_020142.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.591948046449365,
-      "duration": 5.591948046449365,
-      "start_frame": 0,
-      "duration_frames": 89471,
-      "overlap": false,
-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.284405343743511,
-      "end_time": 9.733493254170511,
-      "duration": 3.449087910427,
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-      "duration_frames": 55185,
-      "overlap": false,
-      "utterance_id": "1668-136280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136280.flac |",
-      "real_speaker_id": "1668",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.86606598477356,
-      "end_time": 15.54123037798544,
-      "duration": 4.675164393211881,
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-      "duration_frames": 74802,
-      "overlap": false,
-      "utterance_id": "7126-59175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59175.flac |",
-      "real_speaker_id": "7126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.741438572158732,
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-      "duration": 6.830662262308587,
-      "start_frame": 251863,
-      "duration_frames": 109290,
-      "overlap": false,
-      "utterance_id": "7126-59175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59175.flac |",
-      "real_speaker_id": "7126",
-      "position_frames": 74802
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.177796227023087,
-      "end_time": 28.762712845062957,
-      "duration": 4.584916618039871,
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-      "duration_frames": 73358,
-      "overlap": false,
-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 89471
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.150152360705405,
-      "end_time": 32.0,
-      "duration": 2.8498476392945946,
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-      "duration_frames": 45597,
-      "overlap": false,
-      "utterance_id": "1668-136271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136271.flac |",
-      "real_speaker_id": "1668",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-      "speaker_id": "2882"
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "7126"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1668/laugh/0040.wav",
-      "duration": 0.9462976251107555,
-      "start_time": 31.053702374889244,
-      "speaker_id": "1668"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1668/cough/0106.wav",
-      "duration": 1.2483148586576385,
-      "start_time": 30.75168514134236,
-      "speaker_id": "1668"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020143.json b/conversations/conv_020143.json
deleted file mode 100644
index 004cd82451ce97ce2889eb05b0deca2c1b42ab9d..0000000000000000000000000000000000000000
--- a/conversations/conv_020143.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.2599801304384,
-      "duration": 3.2599801304384,
-      "start_frame": 0,
-      "duration_frames": 52159,
-      "overlap": false,
-      "utterance_id": "7691-293948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-293948.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107312.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7188-82904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-82904.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "4018-107338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107338.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.143506189904674,
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-      "duration_frames": 63657,
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-      "utterance_id": "7691-293948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-293948.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 52159
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7188-104637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-104637.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.173955212087243,
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-      "duration": 2.826044787912757,
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-      "utterance_id": "7691-293948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-293948.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 115816
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
-      "duration": 4.0036507936507935,
-      "start_time": 6.824309145189656
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7188/laugh/0044.wav",
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-      "speaker_id": "7188"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7188/cough/0022.wav",
-      "duration": 1.32,
-      "start_time": 15.591314262800415,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4018/laugh/0098.wav",
-      "duration": 1.16,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4018/cough/0013.wav",
-      "duration": 1.04,
-      "start_time": 14.8891285502025,
-      "speaker_id": "4018"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7691/cough/0073.wav",
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-      "start_time": 20.64620158668777,
-      "speaker_id": "7691"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7188/cough/0080.wav",
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-      "speaker_id": "7188"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020152.json b/conversations/conv_020152.json
deleted file mode 100644
index c064ea6a52179eb98196215a753170b71f9c2c91..0000000000000000000000000000000000000000
--- a/conversations/conv_020152.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.33999868965421,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.336711724483759,
-      "duration": 5.336711724483759,
-      "start_frame": 0,
-      "duration_frames": 85387,
-      "overlap": false,
-      "utterance_id": "8302-281331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281331.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.928809102915947,
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-      "overlap": false,
-      "utterance_id": "4703-73029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4703-73029.flac |",
-      "real_speaker_id": "4703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.503054031481126,
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-      "duration": 5.884853777629706,
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-      "duration_frames": 94157,
-      "overlap": false,
-      "utterance_id": "8302-281331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281331.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 85387
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "5993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.310627524846485,
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "8302-282524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-282524.flac |",
-      "real_speaker_id": "8302",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "Dog",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "8302"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.6172677857379447,
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-      "speaker_id": "4703"
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-      "duration": 1.12,
-      "start_time": 28.342059112535726,
-      "speaker_id": "4703"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020155.json b/conversations/conv_020155.json
deleted file mode 100644
index 00710d9bb40d7793c23a8188ddda3ba0ad090cab..0000000000000000000000000000000000000000
--- a/conversations/conv_020155.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "5940-54016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54016.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.252917654133531,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76250.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54613.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76263.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5940-54016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54016.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 62149
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 20.851983273247193,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7780-274562.flac |",
-      "real_speaker_id": "7780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 27.72051550984515,
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-      "duration": 4.27948449015485,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76263.flac |",
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-      "position_frames": 64447
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "cough",
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-      "duration": 1.22,
-      "start_time": 30.78,
-      "speaker_id": "4441"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020159.json b/conversations/conv_020159.json
deleted file mode 100644
index 23ec3d474d982a0be86e92d0b1b7f74a726b2da3..0000000000000000000000000000000000000000
--- a/conversations/conv_020159.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68896.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68896.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 60835
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.833594394353653,
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-      "utterance_id": "128-121911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-121911.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.53333854897625,
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-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
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-      "position_frames": 86327
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-      "speaker_id": "6358"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020163.json b/conversations/conv_020163.json
deleted file mode 100644
index f100597ba9dda4c9f6baeb46c3ef8a0f2b15c3de..0000000000000000000000000000000000000000
--- a/conversations/conv_020163.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.68719937701308,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137589.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
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-      "real_speaker_id": "1051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": true,
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_020168.json b/conversations/conv_020168.json
deleted file mode 100644
index a2a8802fbfa9835062f26504146b6be2d56c10ec..0000000000000000000000000000000000000000
--- a/conversations/conv_020168.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.207530467307507,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "3664-11714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-11714.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1018-135221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1018-135221.flac |",
-      "real_speaker_id": "1018",
-      "position_frames": 82923
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_9.wav",
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-      "event_class": "Dog",
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-      "start_time": 28.67553780961871
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_020175.json b/conversations/conv_020175.json
deleted file mode 100644
index eb569bb75749fa19fa4adf92ddaa4dac27d51da2..0000000000000000000000000000000000000000
--- a/conversations/conv_020175.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.444860994451674,
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-      "overlap": false,
-      "utterance_id": "7326-96553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-96553.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.280837303912867,
-      "end_time": 10.53207921563223,
-      "duration": 4.251241911719363,
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-      "overlap": false,
-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.662582417225789,
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-      "duration_frames": 101152,
-      "overlap": false,
-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 68019
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.31551019075319,
-      "end_time": 20.611663891094803,
-      "duration": 3.2961537003416117,
-      "start_frame": 277048,
-      "duration_frames": 52738,
-      "overlap": false,
-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 169171
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.45818866812156,
-      "end_time": 27.370853511891085,
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-      "overlap": true,
-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 221909
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.022111591894166,
-      "end_time": 32.0,
-      "duration": 2.9778884081058337,
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-      "utterance_id": "7326-96553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-96553.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 87117
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_020179.json b/conversations/conv_020179.json
deleted file mode 100644
index 64879c93489fd387053e030f5abb8f37699f9738..0000000000000000000000000000000000000000
--- a/conversations/conv_020179.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7883-260944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-260944.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.233999829260254,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163519.flac |",
-      "real_speaker_id": "3119",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113274.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113274.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 92282
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3119-163527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163527.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.127930402542496,
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-      "overlap": false,
-      "utterance_id": "1246-124548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-124548.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.619260711815638,
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-      "utterance_id": "1246-135815",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_020180.json b/conversations/conv_020180.json
deleted file mode 100644
index 8f72d39518a0d9d35ea202dcf565cb639d2aa361..0000000000000000000000000000000000000000
--- a/conversations/conv_020180.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.637826244951174,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8112-281876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8112-281876.flac |",
-      "real_speaker_id": "8112",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-152224.flac |",
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-      "utterance_id": "8112-281888",
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-      "segment_id": "seg0003",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_020187.json b/conversations/conv_020187.json
deleted file mode 100644
index 8231621ede13bc0d85906b85e9a1a74be722dc6d..0000000000000000000000000000000000000000
--- a/conversations/conv_020187.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "3606-6850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3606-6850.flac |",
-      "real_speaker_id": "3606",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3606/laugh/0101.wav",
-      "duration": 1.44,
-      "start_time": 3.33981545053322,
-      "speaker_id": "3606"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3606/laugh/0003.wav",
-      "duration": 1.3895376695558257,
-      "start_time": 15.17474948666279,
-      "speaker_id": "3606"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7484/laugh/0008.wav",
-      "duration": 0.9397522965580294,
-      "start_time": 24.04532640450974,
-      "speaker_id": "7484"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7484/cough/0053.wav",
-      "duration": 0.7948256225636179,
-      "start_time": 27.170855066184288,
-      "speaker_id": "7484"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3606/laugh/0046.wav",
-      "duration": 1.7318383962226018,
-      "start_time": 30.268161603777397,
-      "speaker_id": "3606"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020191.json b/conversations/conv_020191.json
deleted file mode 100644
index 0f413d2d929cbf26b7bea91b314342947aafd4c0..0000000000000000000000000000000000000000
--- a/conversations/conv_020191.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.4568297438863285,
-      "duration": 5.4568297438863285,
-      "start_frame": 0,
-      "duration_frames": 87309,
-      "overlap": false,
-      "utterance_id": "4492-8907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8907.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.924442312775964,
-      "end_time": 11.434770936194804,
-      "duration": 5.5103286234188396,
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-      "duration_frames": 88165,
-      "overlap": false,
-      "utterance_id": "161-121897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121897.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.052269097677957,
-      "end_time": 16.483740709384872,
-      "duration": 4.431471611706915,
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-      "duration_frames": 70903,
-      "overlap": false,
-      "utterance_id": "4492-8904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.956829088971695,
-      "end_time": 22.14592153412506,
-      "duration": 5.189092445153364,
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-      "duration_frames": 83025,
-      "overlap": false,
-      "utterance_id": "2785-154282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-154282.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.39679931306707,
-      "end_time": 28.749627804821024,
-      "duration": 5.352828491753954,
-      "start_frame": 374348,
-      "duration_frames": 85645,
-      "overlap": false,
-      "utterance_id": "4492-8904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 70903
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.948351102055067,
-      "end_time": 32.0,
-      "duration": 3.0516488979449328,
-      "start_frame": 463173,
-      "duration_frames": 48826,
-      "overlap": false,
-      "utterance_id": "161-121743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121743.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
-      "duration": 14.907210884353741,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "4492"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/161/laugh/0002.wav",
-      "duration": 1.24,
-      "start_time": 4.452781119967298,
-      "speaker_id": "161"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4492/cough/0073.wav",
-      "duration": 0.9020293728294937,
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-      "speaker_id": "4492"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/161/laugh/0043.wav",
-      "duration": 0.5018177450728412,
-      "start_time": 28.302764632157206,
-      "speaker_id": "161"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020196.json b/conversations/conv_020196.json
deleted file mode 100644
index c678da70d8f136f58c82af310676b9260d3b31de..0000000000000000000000000000000000000000
--- a/conversations/conv_020196.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-287379.flac |",
-      "real_speaker_id": "7320",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.391974079618423,
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-      "overlap": false,
-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.387882415786983,
-      "end_time": 23.22640782242502,
-      "duration": 5.8385254066380385,
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-      "duration_frames": 93416,
-      "overlap": false,
-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 95822
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.798231138893616,
-      "end_time": 29.093839500988494,
-      "duration": 5.29560836209488,
-      "start_frame": 380771,
-      "duration_frames": 84729,
-      "overlap": false,
-      "utterance_id": "5239-31629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.47541561503937,
-      "end_time": 32.0,
-      "duration": 2.5245843849606295,
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-      "duration_frames": 40393,
-      "overlap": false,
-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 189238
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5239/laugh/0002.wav",
-      "duration": 1.1342559014382374,
-      "start_time": 29.346200246518652,
-      "speaker_id": "5239"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020200.json b/conversations/conv_020200.json
deleted file mode 100644
index 4f0e5d84cb44934744144feaff5f3b429c63592f..0000000000000000000000000000000000000000
--- a/conversations/conv_020200.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "start_frame": 0,
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-      "utterance_id": "5405-19212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5405-19212.flac |",
-      "real_speaker_id": "5405",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.650350452791297,
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-      "utterance_id": "5405-19212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5405-19212.flac |",
-      "real_speaker_id": "5405",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5405-121045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5405-121045.flac |",
-      "real_speaker_id": "5405",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 25.473433368100437,
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-      "utterance_id": "5405-19212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5405-19212.flac |",
-      "real_speaker_id": "5405",
-      "position_frames": 181476
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 1.8016142270457856,
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-      "duration_frames": 28825,
-      "overlap": false,
-      "utterance_id": "5405-121045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5405-121045.flac |",
-      "real_speaker_id": "5405",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5405/laugh/0013.wav",
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-      "start_time": 3.1316831105136504,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5405/cough/0147.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020207.json b/conversations/conv_020207.json
deleted file mode 100644
index ed65d4977e23ebc86f24ea8a7bacab30f299e5e4..0000000000000000000000000000000000000000
--- a/conversations/conv_020207.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.96392240820659,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.664792807699998,
-      "duration": 3.664792807699998,
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-      "duration_frames": 58636,
-      "overlap": false,
-      "utterance_id": "4535-279849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279849.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.779189084329328,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4930-20048",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2045-158081.flac |",
-      "real_speaker_id": "2045",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-      "start_time": 2.6776346829527813,
-      "speaker_id": "2045"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2045/cough/0032.wav",
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-      "speaker_id": "2045"
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-      "speaker_id": "4930"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020210.json b/conversations/conv_020210.json
deleted file mode 100644
index 74bd264a3910dd9129fd4aa9db48204223ffa9e3..0000000000000000000000000000000000000000
--- a/conversations/conv_020210.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.789125936995914,
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-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.804776641903752,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 106012
-    },
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-      "segment_id": "seg0005",
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-      "utterance_id": "501-125127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125127.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "501"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_020211.json b/conversations/conv_020211.json
deleted file mode 100644
index 9b9b8f19c327647ef27bc7b8bdc13d1637be415f..0000000000000000000000000000000000000000
--- a/conversations/conv_020211.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "6499-57667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-57667.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7142.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7142.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 92393
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-91098.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.54486885526186,
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-      "utterance_id": "3179-7135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7135.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6499-87508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-87508.flac |",
-      "real_speaker_id": "6499",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.02,
-      "start_time": 7.680106177685325,
-      "speaker_id": "3179"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6499/laugh/0095.wav",
-      "duration": 1.2504682162856433,
-      "start_time": 29.912744824302624,
-      "speaker_id": "6499"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020216.json b/conversations/conv_020216.json
deleted file mode 100644
index f55b9f3e35ab322c9b06f3efb37be83efa6cf6a2..0000000000000000000000000000000000000000
--- a/conversations/conv_020216.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.479032839854549,
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-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 54955
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "duration": 6.141931944959433,
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-      "duration_frames": 98270,
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-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.633755863499594,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 114871
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.359465571654578,
-      "end_time": 28.90314328453363,
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-      "overlap": false,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 98270
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.8499720863418,
-      "end_time": 32.0,
-      "duration": 2.1500279136581995,
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-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 163414
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
-      "duration": 23.59472296395024,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "2946"
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-    {
-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/cough/0079.wav",
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-      "start_time": 3.1415543936596153,
-      "speaker_id": "2013"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2946/cough/0040.wav",
-      "duration": 1.12,
-      "start_time": 9.44548412896003,
-      "speaker_id": "2946"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2946/laugh/0055.wav",
-      "duration": 1.1148050721158245,
-      "start_time": 24.837807761094975,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2946/laugh/0013.wav",
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-      "start_time": 30.88282816158497,
-      "speaker_id": "2946"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020227.json b/conversations/conv_020227.json
deleted file mode 100644
index 0db838eee734b0d4f3243c3dab6b249f7cd85281..0000000000000000000000000000000000000000
--- a/conversations/conv_020227.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.552365139887748,
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\ No newline at end of file
diff --git a/conversations/conv_020231.json b/conversations/conv_020231.json
deleted file mode 100644
index d373eed2e7496c3ba5f832f68318992f23833ebb..0000000000000000000000000000000000000000
--- a/conversations/conv_020231.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_020241.json b/conversations/conv_020241.json
deleted file mode 100644
index 6d62d3013a24d2facc1f70e7e95163ec37fa0001..0000000000000000000000000000000000000000
--- a/conversations/conv_020241.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_020246.json b/conversations/conv_020246.json
deleted file mode 100644
index dff8ad7e206ff72f1b92540e728c4407207c3903..0000000000000000000000000000000000000000
--- a/conversations/conv_020246.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7512/laugh/0050.wav",
-      "duration": 1.4841599128213023,
-      "start_time": 7.263564530126918,
-      "speaker_id": "7512"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5271/laugh/0002.wav",
-      "duration": 1.28,
-      "start_time": 11.301125194048755,
-      "speaker_id": "5271"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5271/cough/0043.wav",
-      "duration": 1.3811714007605467,
-      "start_time": 13.291499971406104,
-      "speaker_id": "5271"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1012/laugh/0035.wav",
-      "duration": 0.5896160692799659,
-      "start_time": 15.205900923942362,
-      "speaker_id": "1012"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020250.json b/conversations/conv_020250.json
deleted file mode 100644
index 4bdb7fafe66e42eff48a95b50d33cc822a480f54..0000000000000000000000000000000000000000
--- a/conversations/conv_020250.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.619735855671577,
-      "duration": 6.619735855671577,
-      "start_frame": 0,
-      "duration_frames": 105915,
-      "overlap": false,
-      "utterance_id": "150-126107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.720737001697209,
-      "end_time": 12.962211530214859,
-      "duration": 5.241474528517649,
-      "start_frame": 123531,
-      "duration_frames": 83863,
-      "overlap": false,
-      "utterance_id": "3830-12530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12530.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.392181526116563,
-      "end_time": 16.923313595015752,
-      "duration": 3.5311320688991894,
-      "start_frame": 214274,
-      "duration_frames": 56498,
-      "overlap": false,
-      "utterance_id": "3830-12530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12530.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 83863
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.260478090807453,
-      "end_time": 23.402943377664435,
-      "duration": 6.1424652868569805,
-      "start_frame": 276167,
-      "duration_frames": 98279,
-      "overlap": false,
-      "utterance_id": "8042-113762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-113762.flac |",
-      "real_speaker_id": "8042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.434163538266706,
-      "end_time": 27.625621495960694,
-      "duration": 4.191457957693989,
-      "start_frame": 374946,
-      "duration_frames": 67063,
-      "overlap": true,
-      "utterance_id": "3830-12531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12531.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.981305552524706,
-      "end_time": 32.0,
-      "duration": 3.018694447475294,
-      "start_frame": 463700,
-      "duration_frames": 48299,
-      "overlap": false,
-      "utterance_id": "150-126107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 105915
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/432755.wav",
-      "duration": 0.2939909297052154,
-      "start_time": 8.904265032155653
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/150/laugh/0006.wav",
-      "duration": 1.04,
-      "start_time": 6.848008763755916,
-      "speaker_id": "150"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8042/cough/0133.wav",
-      "duration": 0.5849557645239976,
-      "start_time": 16.538104086013632,
-      "speaker_id": "8042"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020257.json b/conversations/conv_020257.json
deleted file mode 100644
index 9b5d8150d62b22f83765f4f82dfb73c532c58641..0000000000000000000000000000000000000000
--- a/conversations/conv_020257.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.596578489026694,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.3236096139198,
-      "duration": 3.3236096139198,
-      "start_frame": 0,
-      "duration_frames": 53177,
-      "overlap": false,
-      "utterance_id": "6741-253244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253244.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.65735064700534,
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-      "duration": 4.680015936157563,
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-      "overlap": false,
-      "utterance_id": "1092-134562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134562.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.519299363887479,
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-      "duration": 4.666121270637266,
-      "start_frame": 136308,
-      "duration_frames": 74657,
-      "overlap": false,
-      "utterance_id": "6741-253244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253244.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 53177
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.550202683480917,
-      "end_time": 19.694064774599802,
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-      "start_frame": 216803,
-      "duration_frames": 98301,
-      "overlap": false,
-      "utterance_id": "7331-86025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86025.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.846792143738224,
-      "end_time": 25.753498460028354,
-      "duration": 4.906706316290129,
-      "start_frame": 333548,
-      "duration_frames": 78507,
-      "overlap": false,
-      "utterance_id": "1092-134562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134562.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 74880
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.40979632379059,
-      "end_time": 31.596578489026694,
-      "duration": 5.186782165236103,
-      "start_frame": 422556,
-      "duration_frames": 82988,
-      "overlap": false,
-      "utterance_id": "1092-134579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134579.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
-      "duration": 3.4504551163854846,
-      "start_time": 2.809380321233332
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6741/laugh/0091.wav",
-      "duration": 1.24,
-      "start_time": 6.996088647675219,
-      "speaker_id": "6741"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1092/laugh/0082.wav",
-      "duration": 1.5535529612117314,
-      "start_time": 28.158321595454602,
-      "speaker_id": "1092"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1092/cough/0036.wav",
-      "duration": 1.1068255807425589,
-      "start_time": 25.203085906138746,
-      "speaker_id": "1092"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020266.json b/conversations/conv_020266.json
deleted file mode 100644
index 42a64aecb21b80ba4a65c112cbf5605e51e3b02a..0000000000000000000000000000000000000000
--- a/conversations/conv_020266.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.274276279203123,
-      "duration": 4.274276279203123,
-      "start_frame": 0,
-      "duration_frames": 68388,
-      "overlap": false,
-      "utterance_id": "7264-92310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7264-92310.flac |",
-      "real_speaker_id": "7264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.574839543099991,
-      "end_time": 8.517124778609972,
-      "duration": 3.9422852355099813,
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-      "duration_frames": 63076,
-      "overlap": false,
-      "utterance_id": "3119-163527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163527.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.060521529492611,
-      "end_time": 15.00032573297474,
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-      "duration_frames": 95036,
-      "overlap": false,
-      "utterance_id": "8675-292352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.903385451546317,
-      "end_time": 20.945998764679214,
-      "duration": 5.042613313132897,
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-      "duration_frames": 80681,
-      "overlap": false,
-      "utterance_id": "3119-163527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163527.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 63076
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.858566026307443,
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-      "duration": 5.536455877041707,
-      "start_frame": 349737,
-      "duration_frames": 88583,
-      "overlap": false,
-      "utterance_id": "8675-283202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-283202.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.239944474239827,
-      "end_time": 32.0,
-      "duration": 3.7600555257601727,
-      "start_frame": 451839,
-      "duration_frames": 60160,
-      "overlap": false,
-      "utterance_id": "8675-292352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 95036
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3119/laugh/0060.wav",
-      "duration": 1.08,
-      "start_time": 14.650717045767003,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8675/laugh/0105.wav",
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-      "start_time": 21.053742233474775,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8675/cough/0017.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8675/laugh/0063.wav",
-      "duration": 0.88,
-      "start_time": 27.235483181069206,
-      "speaker_id": "8675"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020270.json b/conversations/conv_020270.json
deleted file mode 100644
index da17b332568eeff544473f30cc07136c0477e62f..0000000000000000000000000000000000000000
--- a/conversations/conv_020270.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.662294751698597,
-      "duration": 4.662294751698597,
-      "start_frame": 0,
-      "duration_frames": 74596,
-      "overlap": false,
-      "utterance_id": "89-219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-219.flac |",
-      "real_speaker_id": "89",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.86644246263971,
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-      "overlap": false,
-      "utterance_id": "6173-76448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6173-76448.flac |",
-      "real_speaker_id": "6173",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "start_frame": 164822,
-      "duration_frames": 90241,
-      "overlap": false,
-      "utterance_id": "1544-121402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-121402.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-219.flac |",
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-      "position_frames": 74596
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 163955
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-218.flac |",
-      "real_speaker_id": "89",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-      "duration": 1.14,
-      "start_time": 16.127480863167833,
-      "speaker_id": "1544"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/89/laugh/0073.wav",
-      "duration": 1.56,
-      "start_time": 18.253151098203325,
-      "speaker_id": "89"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "89"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020284.json b/conversations/conv_020284.json
deleted file mode 100644
index 2ac81437fef9613278144ff5724804dabfd131d8..0000000000000000000000000000000000000000
--- a/conversations/conv_020284.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.352707216356178,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-173260.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8080-274558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-274558.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.170562767007315,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-173260.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 102097
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-274558.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 111816
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.320169053915336,
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-      "utterance_id": "3020-892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-892.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "8080"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020285.json b/conversations/conv_020285.json
deleted file mode 100644
index e50c23419e7a5aaed99f7b952099f4eee6218de1..0000000000000000000000000000000000000000
--- a/conversations/conv_020285.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 93882
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6065-111797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-111797.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.106542947552114,
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-      "utterance_id": "2238-121413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121413.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
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-      "position_frames": 145496
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_020289.json b/conversations/conv_020289.json
deleted file mode 100644
index 77c35063727858016b6d3c5190ad7fa2a6ff8b5b..0000000000000000000000000000000000000000
--- a/conversations/conv_020289.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-127369.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
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-      "real_speaker_id": "3137",
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-      "utterance_id": "3137-163504",
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-      "segment_id": "seg0003",
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-      "position_frames": 73762
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-    {
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-      "utterance_id": "7702-96101",
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\ No newline at end of file
diff --git a/conversations/conv_020293.json b/conversations/conv_020293.json
deleted file mode 100644
index e4def9678ea2c1f170f8c78f29ca5909d834132b..0000000000000000000000000000000000000000
--- a/conversations/conv_020293.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.786284966857572,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.768677236744176,
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-      "utterance_id": "4545-9166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.112919994867498,
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-      "utterance_id": "1051-133883",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
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-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.22913005057969,
-      "end_time": 30.786284966857572,
-      "duration": 4.557154916277879,
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-      "utterance_id": "4545-9166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 156705
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-      "event_class": "Dog",
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-      "start_time": 14.004525079772465,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1051/laugh/0126.wav",
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-      "start_time": 15.964198786985664,
-      "speaker_id": "1051"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/238/laugh/0011.wav",
-      "duration": 1.4973287392706973,
-      "start_time": 22.666959803881223,
-      "speaker_id": "238"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020303.json b/conversations/conv_020303.json
deleted file mode 100644
index cf774c932f2dc25153479a7c68e1bde0223f6094..0000000000000000000000000000000000000000
--- a/conversations/conv_020303.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.272840957815383,
-      "duration": 6.272840957815383,
-      "start_frame": 0,
-      "duration_frames": 100365,
-      "overlap": false,
-      "utterance_id": "3185-163505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163505.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.074992620388756,
-      "end_time": 11.436399405179994,
-      "duration": 4.361406784791237,
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-      "overlap": false,
-      "utterance_id": "2574-128278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128278.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.84295518703212,
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-      "duration": 4.479510974222378,
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-      "duration_frames": 71672,
-      "overlap": true,
-      "utterance_id": "5157-47237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47237.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.12246344855003,
-      "end_time": 21.66093291885922,
-      "duration": 3.538469470309192,
-      "start_frame": 289959,
-      "duration_frames": 56615,
-      "overlap": false,
-      "utterance_id": "3185-163505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163505.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 100365
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.563430207277214,
-      "end_time": 26.23285005693981,
-      "duration": 3.669419849662595,
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-      "duration_frames": 58710,
-      "overlap": false,
-      "utterance_id": "5157-47237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47237.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 71672
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.513721815391076,
-      "end_time": 32.0,
-      "duration": 5.486278184608924,
-      "start_frame": 424219,
-      "duration_frames": 87780,
-      "overlap": false,
-      "utterance_id": "3185-163505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163505.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 156980
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
-      "duration": 3.3042086899917775,
-      "start_time": 6.8741648319170565
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5157/cough/0081.wav",
-      "duration": 1.0589440031013524,
-      "start_time": 13.552065376737213,
-      "speaker_id": "5157"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3185/laugh/0059.wav",
-      "duration": 0.6988986638602609,
-      "start_time": 17.24144087826845,
-      "speaker_id": "3185"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020304.json b/conversations/conv_020304.json
deleted file mode 100644
index 4de728ba9d32edfc453591329cecb530f6cf56ca..0000000000000000000000000000000000000000
--- a/conversations/conv_020304.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.3608249525662703,
-      "duration": 3.3608249525662703,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.5857836778632897,
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-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.253413561440224,
-      "end_time": 12.8769479870807,
-      "duration": 5.623534425640475,
-      "start_frame": 116054,
-      "duration_frames": 89976,
-      "overlap": false,
-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 53773
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 12.674294838826176,
-      "end_time": 17.727246928574427,
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-      "overlap": true,
-      "utterance_id": "3819-134145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134145.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.650489534669372,
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-      "duration": 3.498988641038909,
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-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 143749
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.48544855704248,
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-      "duration": 4.62932840495818,
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-      "duration_frames": 74069,
-      "overlap": false,
-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 48827
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.918539323362722,
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-      "duration": 3.0814606766372776,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 199732
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 1.8705634827640991,
-      "start_time": 27.90095418801955
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7346/cough/0006.wav",
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-      "speaker_id": "7346"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7346/laugh/0031.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3819/laugh/0164.wav",
-      "duration": 1.0,
-      "start_time": 13.529958581873286,
-      "speaker_id": "3819"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7346/laugh/0075.wav",
-      "duration": 0.9311054065116209,
-      "start_time": 17.547571902349713,
-      "speaker_id": "7346"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7346/cough/0046.wav",
-      "duration": 1.3686333550958283,
-      "start_time": 17.206557898230365,
-      "speaker_id": "7346"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2284/laugh/0095.wav",
-      "duration": 1.16,
-      "start_time": 25.506968722583856,
-      "speaker_id": "2284"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020312.json b/conversations/conv_020312.json
deleted file mode 100644
index 2d35dabf882b76abb3eb5d9672165d54f3eef3ba..0000000000000000000000000000000000000000
--- a/conversations/conv_020312.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.440834305525944,
-      "duration": 6.440834305525944,
-      "start_frame": 0,
-      "duration_frames": 103053,
-      "overlap": false,
-      "utterance_id": "1705-142318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
-      "real_speaker_id": "1705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.033927951529017,
-      "end_time": 12.558724253067016,
-      "duration": 5.524796301538,
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-      "duration_frames": 88396,
-      "overlap": false,
-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 77090,
-      "overlap": false,
-      "utterance_id": "413-22437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22437.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.35800548227804,
-      "end_time": 24.35545620240501,
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-      "start_frame": 293728,
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-      "overlap": false,
-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 88396
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.7494086231191,
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-      "duration": 3.7272115250103233,
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-      "utterance_id": "413-22436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22436.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.969861652476492,
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-      "duration": 3.0301383475235077,
-      "start_frame": 463517,
-      "duration_frames": 48482,
-      "overlap": false,
-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 184355
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
-      "duration": 20.515633178781773,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/19/cough/0015.wav",
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-      "start_time": 5.770281200639037,
-      "speaker_id": "19"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/413/cough/0061.wav",
-      "duration": 1.2,
-      "start_time": 17.80866212031121,
-      "speaker_id": "413"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/19/cough/0023.wav",
-      "duration": 0.92638547025479,
-      "start_time": 17.421327810648712,
-      "speaker_id": "19"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/413/laugh/0050.wav",
-      "duration": 0.7220727701384391,
-      "start_time": 28.581353694191993,
-      "speaker_id": "413"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/413/cough/0054.wav",
-      "duration": 1.11652074874447,
-      "start_time": 23.438646486519133,
-      "speaker_id": "413"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020315.json b/conversations/conv_020315.json
deleted file mode 100644
index 21233c38dec88779cf91898d67c814305c9be0d7..0000000000000000000000000000000000000000
--- a/conversations/conv_020315.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.917976971822416,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
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-      "speaker_id": "8742"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020319.json b/conversations/conv_020319.json
deleted file mode 100644
index 3e03256cff56423d438cb8d3fca684b965439919..0000000000000000000000000000000000000000
--- a/conversations/conv_020319.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "2764-36617",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36617.flac |",
-      "real_speaker_id": "2764",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "2764",
-      "position_frames": 0
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-      "start_time": 28.35898244790715,
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-      "utterance_id": "6407-66983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66983.flac |",
-      "real_speaker_id": "6407",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020322.json b/conversations/conv_020322.json
deleted file mode 100644
index 00eb946e0c6e28473a10247c23bd4e8fd7c9264a..0000000000000000000000000000000000000000
--- a/conversations/conv_020322.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15045.flac |",
-      "real_speaker_id": "2911",
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-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_020323.json b/conversations/conv_020323.json
deleted file mode 100644
index 38ddb6ba2d78f88a0d9fb77a19ce3737f368ec23..0000000000000000000000000000000000000000
--- a/conversations/conv_020323.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.872530087842847,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1699-141160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141160.flac |",
-      "real_speaker_id": "1699",
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-    },
-    {
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-      "speaker_id": "5719"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020335.json b/conversations/conv_020335.json
deleted file mode 100644
index 564b5dc67163efe444de1711dfb0cfae968b1ba2..0000000000000000000000000000000000000000
--- a/conversations/conv_020335.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020339.json b/conversations/conv_020339.json
deleted file mode 100644
index ebdaff41ce14dd82231171ca1c0f9a780191756d..0000000000000000000000000000000000000000
--- a/conversations/conv_020339.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-699.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102240.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 95389
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-      "segment_id": "seg0005",
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-      "start_time": 27.889020266210586,
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-      "utterance_id": "3054-128244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
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-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020342.json b/conversations/conv_020342.json
deleted file mode 100644
index 2af41784bf982e69c246b5b70ac61835ee7f019e..0000000000000000000000000000000000000000
--- a/conversations/conv_020342.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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\ No newline at end of file
diff --git a/conversations/conv_020345.json b/conversations/conv_020345.json
deleted file mode 100644
index 9471ecead8ce62abe587c43d6ea146fbdd18901e..0000000000000000000000000000000000000000
--- a/conversations/conv_020345.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166420.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 171635
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.12,
-      "start_time": 22.13252075744446,
-      "speaker_id": "2301"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020353.json b/conversations/conv_020353.json
deleted file mode 100644
index 9f040695577909346f138ba48138cc72e81e518d..0000000000000000000000000000000000000000
--- a/conversations/conv_020353.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "572-128861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-128861.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.8910775973863645,
-      "end_time": 11.588752275874018,
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-      "overlap": false,
-      "utterance_id": "5886-27508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5886-27508.flac |",
-      "real_speaker_id": "5886",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.657366992722753,
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-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 97020
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5886-27508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5886-27508.flac |",
-      "real_speaker_id": "5886",
-      "position_frames": 75162
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 171082
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_6.wav",
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-  "paralinguistic_events": [
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-      "start_time": 17.2014913050922,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5886/laugh/0010.wav",
-      "duration": 1.32,
-      "start_time": 22.082139769033013,
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-}
\ No newline at end of file
diff --git a/conversations/conv_020354.json b/conversations/conv_020354.json
deleted file mode 100644
index 41a47dc28927660babfb211021b512a499e39242..0000000000000000000000000000000000000000
--- a/conversations/conv_020354.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.637554196410257,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24732.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 50713
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-185514.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.73353827004295,
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-      "utterance_id": "4854-24731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24731.flac |",
-      "real_speaker_id": "4854",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3675-187020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-187020.flac |",
-      "real_speaker_id": "3675",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_020355.json b/conversations/conv_020355.json
deleted file mode 100644
index ef8e5d8bb0713a633b5ee0c27674925c6874d530..0000000000000000000000000000000000000000
--- a/conversations/conv_020355.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.646666892941378,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.700288964078123,
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-      "utterance_id": "548-126959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126959.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 91496
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020358.json b/conversations/conv_020358.json
deleted file mode 100644
index 270ab81d3c977b2580579ec3f9ef08de5a4c727a..0000000000000000000000000000000000000000
--- a/conversations/conv_020358.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5825-50883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-50883.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 67161,
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-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "duration": 3.6146861876345047,
-      "start_time": 17.50842791844983
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/264/laugh/0034.wav",
-      "duration": 1.2890324698734386,
-      "start_time": 5.848723891905754,
-      "speaker_id": "264"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020362.json b/conversations/conv_020362.json
deleted file mode 100644
index 1c258ef9641f45c5f9a29c8b9a554c86973fad20..0000000000000000000000000000000000000000
--- a/conversations/conv_020362.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.236652315632392,
-      "duration": 6.236652315632392,
-      "start_frame": 0,
-      "duration_frames": 99786,
-      "overlap": false,
-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.84011058238884,
-      "end_time": 10.635264442200066,
-      "duration": 3.795153859811226,
-      "start_frame": 109441,
-      "duration_frames": 60722,
-      "overlap": false,
-      "utterance_id": "3346-158751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-158751.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.565059461778121,
-      "end_time": 17.15993413308469,
-      "duration": 5.59487467130657,
-      "start_frame": 185040,
-      "duration_frames": 89517,
-      "overlap": false,
-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 99786
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.104957474277903,
-      "end_time": 24.869875255071612,
-      "duration": 6.764917780793711,
-      "start_frame": 289679,
-      "duration_frames": 108238,
-      "overlap": false,
-      "utterance_id": "4327-4714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4327-4714.flac |",
-      "real_speaker_id": "4327",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.24614892533078,
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-      "duration": 4.161444295667817,
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-      "duration_frames": 66583,
-      "overlap": false,
-      "utterance_id": "3346-7599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-7599.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.38203405014137,
-      "end_time": 32.0,
-      "duration": 1.617965949858629,
-      "start_frame": 486112,
-      "duration_frames": 25887,
-      "overlap": false,
-      "utterance_id": "4327-9959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4327-9959.flac |",
-      "real_speaker_id": "4327",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
-      "duration": 19.008461919655932,
-      "start_time": 9.230346403731945
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
-      "duration": 0.5608390022675737,
-      "start_time": 27.968915721095534
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1825/laugh/0050.wav",
-      "duration": 0.9971029919757175,
-      "start_time": 0,
-      "speaker_id": "1825"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3346/cough/0102.wav",
-      "duration": 0.43676588387722026,
-      "start_time": 10.749718745349941,
-      "speaker_id": "3346"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4327/laugh/0060.wav",
-      "duration": 0.6066894709212727,
-      "start_time": 17.237197000114794,
-      "speaker_id": "4327"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4327/cough/0048.wav",
-      "duration": 0.88,
-      "start_time": 18.277918850890085,
-      "speaker_id": "4327"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3346/laugh/0150.wav",
-      "duration": 1.2958451010768492,
-      "start_time": 23.75919700103951,
-      "speaker_id": "3346"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020374.json b/conversations/conv_020374.json
deleted file mode 100644
index 0de83f5c2151bbf8945ccd49e65baa25b265d067..0000000000000000000000000000000000000000
--- a/conversations/conv_020374.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.148622796780722,
-      "duration": 6.148622796780722,
-      "start_frame": 0,
-      "duration_frames": 98377,
-      "overlap": false,
-      "utterance_id": "2404-141242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2404-141242.flac |",
-      "real_speaker_id": "2404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.309517986488984,
-      "end_time": 10.174093423077142,
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-      "duration_frames": 61833,
-      "overlap": false,
-      "utterance_id": "2026-22756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7867-110528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110528.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.93025580396772,
-      "end_time": 21.429605113505566,
-      "duration": 4.499349309537843,
-      "start_frame": 270884,
-      "duration_frames": 71989,
-      "overlap": false,
-      "utterance_id": "2026-22756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 61833
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.672133847758424,
-      "end_time": 28.64570749528665,
-      "duration": 6.973573647528226,
-      "start_frame": 346754,
-      "duration_frames": 111577,
-      "overlap": false,
-      "utterance_id": "7867-110742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110742.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.92937080835171,
-      "end_time": 32.0,
-      "duration": 3.0706291916482904,
-      "start_frame": 462869,
-      "duration_frames": 49130,
-      "overlap": false,
-      "utterance_id": "2026-22756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 133822
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
-      "duration": 11.94546415500369,
-      "start_time": 16.046909370081956
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
-      "duration": 0.6340362811791384,
-      "start_time": 28.296087518284526
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
-      "duration": 0.5316780045351474,
-      "start_time": 30.642537503179426
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2026/laugh/0018.wav",
-      "duration": 1.1309195132543444,
-      "start_time": 17.62427290614749,
-      "speaker_id": "2026"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2026/cough/0019.wav",
-      "duration": 1.2464635980019239,
-      "start_time": 18.6316953641315,
-      "speaker_id": "2026"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7867/laugh/0030.wav",
-      "duration": 1.2417196836818651,
-      "start_time": 20.248343520693155,
-      "speaker_id": "7867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020378.json b/conversations/conv_020378.json
deleted file mode 100644
index 758ef8181b0d8d081125c8bcf6b3005ce11d5872..0000000000000000000000000000000000000000
--- a/conversations/conv_020378.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 58764,
-      "overlap": false,
-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.985807777253039,
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-      "overlap": false,
-      "utterance_id": "1544-121402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-121402.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.18619148450747,
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-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 58764
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.83617687028697,
-      "end_time": 19.872437512959564,
-      "duration": 6.0362606426725955,
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-      "duration_frames": 96580,
-      "overlap": false,
-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 119679
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.39193974158984,
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-      "utterance_id": "1544-121402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-121402.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 69480
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 6.437352610069709,
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-      "duration_frames": 102997,
-      "overlap": false,
-      "utterance_id": "6676-71414",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-71414.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.41655950418941,
-      "end_time": 32.0,
-      "duration": 0.5834404958105885,
-      "start_frame": 502664,
-      "duration_frames": 9335,
-      "overlap": false,
-      "utterance_id": "1544-121405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-121405.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/839/laugh/0075.wav",
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-      "start_time": 8.005217070416478,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/839/laugh/0050.wav",
-      "duration": 1.32,
-      "start_time": 12.32420791082635,
-      "speaker_id": "839"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6676/cough/0113.wav",
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-      "speaker_id": "6676"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1544/laugh/0153.wav",
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-      "speaker_id": "1544"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020379.json b/conversations/conv_020379.json
deleted file mode 100644
index df456aeb29168f10e8950e436c98c4a261337f97..0000000000000000000000000000000000000000
--- a/conversations/conv_020379.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.930962127826158,
-      "duration": 5.930962127826158,
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-      "utterance_id": "2485-151993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-151993.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.041044517021518,
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-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 55639
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-151992.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.116269631055836,
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-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
-      "real_speaker_id": "956",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.634050874280877,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-151992.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 85544
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
-      "duration": 0.30428571428571427,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4821/laugh/0075.wav",
-      "duration": 1.4,
-      "start_time": 11.43162372843864,
-      "speaker_id": "4821"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020381.json b/conversations/conv_020381.json
deleted file mode 100644
index c4aed0da637ec2a3cb8c13a9f73453cfa5718ec0..0000000000000000000000000000000000000000
--- a/conversations/conv_020381.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99815135492761,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.61368560003159,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7205-64110.flac |",
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-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 81336
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.867957048255494,
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-      "utterance_id": "7205-64127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7205-64127.flac |",
-      "real_speaker_id": "7205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.22074729908326,
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-      "utterance_id": "166-122789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-122789.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.76389081962049,
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-      "overlap": false,
-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 151574
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020396.json b/conversations/conv_020396.json
deleted file mode 100644
index 920330dcf7fd24d7ca03903cb01bd427e43890ea..0000000000000000000000000000000000000000
--- a/conversations/conv_020396.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4455-116276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-116276.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7238-91112.flac |",
-      "real_speaker_id": "7238",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-116276.flac |",
-      "real_speaker_id": "4455",
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-      "utterance_id": "2407-7667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7667.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.544864562606932,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7238-107675.flac |",
-      "real_speaker_id": "7238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-116276.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 143600
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "real_speaker_id": "2407",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_020397.json b/conversations/conv_020397.json
deleted file mode 100644
index d92b8bb8196a4cfa51f0fd56dd40253c73a9af79..0000000000000000000000000000000000000000
--- a/conversations/conv_020397.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2967-4901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4901.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.912588102310373,
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-      "utterance_id": "3557-8342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8342.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.388429520820726,
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-      "utterance_id": "688-1070",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-1070.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8342.flac |",
-      "real_speaker_id": "3557",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "688",
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-      "segment_id": "seg0005",
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-      "position_frames": 85425
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-    {
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-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020401.json b/conversations/conv_020401.json
deleted file mode 100644
index 5f6865b3cd136945cf96498972ffcc3e8016b576..0000000000000000000000000000000000000000
--- a/conversations/conv_020401.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.794528713520787,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "475-125002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125002.flac |",
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-    },
-    {
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-      "real_speaker_id": "7346",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125001.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 78545
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.365618489971865,
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-      "duration": 3.4289102235489217,
-      "start_frame": 453849,
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-      "overlap": true,
-      "utterance_id": "3588-180957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-180957.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/475/laugh/0035.wav",
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-      "speaker_id": "475"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.5440256189875862,
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-      "speaker_id": "3588"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020417.json b/conversations/conv_020417.json
deleted file mode 100644
index d2c9b2b83cdf1b848e2423c1246e7b06ff1a9894..0000000000000000000000000000000000000000
--- a/conversations/conv_020417.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.336200815535863,
-      "duration": 4.336200815535863,
-      "start_frame": 0,
-      "duration_frames": 69379,
-      "overlap": false,
-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.508986506740673,
-      "end_time": 10.412966991431368,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.478722200209447,
-      "end_time": 17.558548123054713,
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-      "overlap": false,
-      "utterance_id": "7408-256039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-256039.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.859400738170834,
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-      "overlap": false,
-      "utterance_id": "2299-6524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6524.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.53640773480754,
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-      "overlap": false,
-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 69379
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.369224323385072,
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-      "duration": 1.6307756766149275,
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-      "duration_frames": 26092,
-      "overlap": false,
-      "utterance_id": "2299-6524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6524.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 80182
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
-      "duration": 4.317674747111594,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4138/laugh/0010.wav",
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-      "event_class": "laugh",
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-    },
-    {
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-      "duration": 1.6,
-      "start_time": 15.648230834927407,
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "2299"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020421.json b/conversations/conv_020421.json
deleted file mode 100644
index b5771d04c6841691a3ef83c987e09a978cb74b92..0000000000000000000000000000000000000000
--- a/conversations/conv_020421.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "572-126495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-126495.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.095100128656461,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "8424-281344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8424-281344.flac |",
-      "real_speaker_id": "8424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.61614227135305,
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-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 66989
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8424",
-      "position_frames": 104619
-    },
-    {
-      "segment_id": "seg0005",
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-      "end_time": 32.0,
-      "duration": 0.50285797636392,
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-      "duration_frames": 8045,
-      "overlap": false,
-      "utterance_id": "6912-70847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
-      "duration": 0.2440362811791383,
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.06,
-      "start_time": 16.540141200189368,
-      "speaker_id": "6912"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8424/laugh/0026.wav",
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-      "start_time": 29.05035587413274,
-      "speaker_id": "8424"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6912/laugh/0011.wav",
-      "duration": 0.6544682940269315,
-      "start_time": 31.34553170597307,
-      "speaker_id": "6912"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020437.json b/conversations/conv_020437.json
deleted file mode 100644
index dace79ea5de4165585f642f2e54e02b4c3d734d0..0000000000000000000000000000000000000000
--- a/conversations/conv_020437.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3033-138641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3033-138641.flac |",
-      "real_speaker_id": "3033",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.497713999356338,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-124002.flac |",
-      "real_speaker_id": "154",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3033-138641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3033-138641.flac |",
-      "real_speaker_id": "3033",
-      "position_frames": 105979
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-123998.flac |",
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-    {
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-    {
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-      "real_speaker_id": "8222",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/154/laugh/0008.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8222/laugh/0017.wav",
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-      "duration": 0.5436809027994074,
-      "start_time": 30.133343138995606,
-      "speaker_id": "8222"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020440.json b/conversations/conv_020440.json
deleted file mode 100644
index ce3367d7d0f89c5db62db6c61f55c8eafabfe6e1..0000000000000000000000000000000000000000
--- a/conversations/conv_020440.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2688-144986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144986.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.993027053343554,
-      "end_time": 11.679774515927045,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101258.flac |",
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-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.607446025875817,
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-      "duration_frames": 82441,
-      "overlap": true,
-      "utterance_id": "7540-101258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101258.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 74987
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.388015594651396,
-      "end_time": 28.0621359405974,
-      "duration": 4.674120345946004,
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-      "overlap": false,
-      "utterance_id": "4110-11533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11533.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.31878475030067,
-      "end_time": 32.0,
-      "duration": 3.6812152496993313,
-      "start_frame": 453100,
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-      "overlap": false,
-      "utterance_id": "7540-101799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101799.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-      "event_class": "Blender",
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-      "speaker_id": "2688"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020447.json b/conversations/conv_020447.json
deleted file mode 100644
index 816386bffd04da74e343b91acd5a1322975156e2..0000000000000000000000000000000000000000
--- a/conversations/conv_020447.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3368-170952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170952.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.279290097903437,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-96617.flac |",
-      "real_speaker_id": "3681",
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-      "utterance_id": "2652-157644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-96617.flac |",
-      "real_speaker_id": "3681",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3368-170952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170952.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 75072
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.116926346484767,
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-      "utterance_id": "3681-26514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-26514.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.654696600767416,
-      "end_time": 32.0,
-      "duration": 0.34530339923258424,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
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-      "position_frames": 76053
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
-      "duration": 0.2502721088435374,
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3681/laugh/0063.wav",
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-      "start_time": 24.02592678197713,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3681/laugh/0135.wav",
-      "duration": 1.1565864359072175,
-      "start_time": 26.625663284049658,
-      "speaker_id": "3681"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020456.json b/conversations/conv_020456.json
deleted file mode 100644
index 104aff9a3eee20c3cc1e86a3c19b8c84a7903fc2..0000000000000000000000000000000000000000
--- a/conversations/conv_020456.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7447-91187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91187.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4327-4714.flac |",
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-      "utterance_id": "4327-9916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4327-9916.flac |",
-      "real_speaker_id": "4327",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "6224-61958",
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-      "real_speaker_id": "6224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4327-9916.flac |",
-      "real_speaker_id": "4327",
-      "position_frames": 91682
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020457.json b/conversations/conv_020457.json
deleted file mode 100644
index eaa961b853ee21fd29ede7afeb08669137cfb532..0000000000000000000000000000000000000000
--- a/conversations/conv_020457.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.600100809264166,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020460.json b/conversations/conv_020460.json
deleted file mode 100644
index a2e6454b2857468624a77a4417eafe9b676bcbbb..0000000000000000000000000000000000000000
--- a/conversations/conv_020460.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.065749781506707,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5636-41792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41792.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2341-163408.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171134.flac |",
-      "real_speaker_id": "3686",
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-      "speaker_id": 1,
-      "start_time": 13.69745179961885,
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-      "utterance_id": "5636-57477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-57477.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 19.2626235749595,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2341-151701.flac |",
-      "real_speaker_id": "2341",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.67619679674078,
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-      "duration": 3.9835927251704017,
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-      "overlap": false,
-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.12219258981494,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_020476.json b/conversations/conv_020476.json
deleted file mode 100644
index 8359290b9ed0778e896bb9b284defe2b15ac1e37..0000000000000000000000000000000000000000
--- a/conversations/conv_020476.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "7000-83696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83696.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
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-      "real_speaker_id": "4863",
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-      "real_speaker_id": "7000",
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_020483.json b/conversations/conv_020483.json
deleted file mode 100644
index 9ff74ccfe648ae9248d9f33a6c07da401a472679..0000000000000000000000000000000000000000
--- a/conversations/conv_020483.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-280358.flac |",
-      "real_speaker_id": "5424",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
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-}
\ No newline at end of file
diff --git a/conversations/conv_020484.json b/conversations/conv_020484.json
deleted file mode 100644
index 33649c37a43452e919f0f967faed9249d568ef8f..0000000000000000000000000000000000000000
--- a/conversations/conv_020484.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 0
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-      "utterance_id": "1261-136350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-136350.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.901168697885275,
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-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 142938
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.773028128007933,
-      "end_time": 32.0,
-      "duration": 2.226971871992067,
-      "start_frame": 476368,
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-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 81467
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
-      "duration": 0.672108843537415,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1261/laugh/0062.wav",
-      "duration": 1.0148450663851465,
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-      "speaker_id": "1261"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020492.json b/conversations/conv_020492.json
deleted file mode 100644
index 45fc775c0e67c59460f63bffafd2fac6cb38f2c3..0000000000000000000000000000000000000000
--- a/conversations/conv_020492.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "5968-61356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-61356.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.483442963736262,
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-      "overlap": true,
-      "utterance_id": "8302-282524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-282524.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.69519324336026,
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-      "utterance_id": "6167-282391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-282391.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.592990409980345,
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-      "overlap": false,
-      "utterance_id": "8302-282524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-282524.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 95987
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 28.756918772437096,
-      "end_time": 32.0,
-      "duration": 3.2430812275629037,
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-      "duration_frames": 51889,
-      "overlap": false,
-      "utterance_id": "5968-71320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-71320.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.89249466969508,
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5968/laugh/0076.wav",
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-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "5968"
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020495.json b/conversations/conv_020495.json
deleted file mode 100644
index 5807b9a098a0eeab218ce2ac89d419c3aabe70a2..0000000000000000000000000000000000000000
--- a/conversations/conv_020495.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.654692320788556,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5141-26943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26943.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 74998
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 85457,
-      "overlap": false,
-      "utterance_id": "3923-153309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-153309.flac |",
-      "real_speaker_id": "3923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.785493678942764,
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-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 135680
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-      "segment_id": "seg0005",
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-      "utterance_id": "3923-174992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-174992.flac |",
-      "real_speaker_id": "3923",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "start_time": 30.9,
-      "speaker_id": "3923"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020499.json b/conversations/conv_020499.json
deleted file mode 100644
index af62e09c27d648b43a68fc85f925fb0e4d082895..0000000000000000000000000000000000000000
--- a/conversations/conv_020499.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "783-126739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "1985-144468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "start_frame": 182203,
-      "duration_frames": 55360,
-      "overlap": false,
-      "utterance_id": "783-126739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 72069
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "217-122443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/217-122443.flac |",
-      "real_speaker_id": "217",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1985-144468",
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-      "real_speaker_id": "1985",
-      "position_frames": 101513
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 127429
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020502.json b/conversations/conv_020502.json
deleted file mode 100644
index 065b0083f98092d85d93f9abe5375b50569e8476..0000000000000000000000000000000000000000
--- a/conversations/conv_020502.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.464023271434066,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6269-66185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66185.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
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-    {
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-      "start_time": 5.906008527616346,
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-      "utterance_id": "5115-26951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26951.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "5641-32124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-32124.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 0
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-    {
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-      "position_frames": 67156
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-32124.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 64286
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6269-66176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66176.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.33216571576181,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6269/laugh/0026.wav",
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-      "speaker_id": "6269"
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-      "speaker_id": "5115"
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-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6269/laugh/0086.wav",
-      "duration": 0.9910761434177857,
-      "start_time": 31.008923856582214,
-      "speaker_id": "6269"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020505.json b/conversations/conv_020505.json
deleted file mode 100644
index 6728e2168e922aa5e7b288363293416bed58c502..0000000000000000000000000000000000000000
--- a/conversations/conv_020505.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.227995927797092,
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-      "overlap": false,
-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.445250792071135,
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-      "utterance_id": "2309-152159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152159.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 67647
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "duration": 3.6620015521714864,
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-      "overlap": false,
-      "utterance_id": "2309-152159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152159.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 78928
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.10031463497389,
-      "end_time": 25.501939307144017,
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-      "utterance_id": "2309-152159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152159.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 137520
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.014258422204552,
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-      "duration": 5.125726534948057,
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-      "duration_frames": 82011,
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-      "utterance_id": "6685-70976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70976.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.37934853914136,
-      "end_time": 32.0,
-      "duration": 0.6206514608586389,
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-      "duration_frames": 9930,
-      "overlap": false,
-      "utterance_id": "2309-167347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-167347.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_020509.json b/conversations/conv_020509.json
deleted file mode 100644
index 163b69558b7547408d21bc7e5b69e77423898368..0000000000000000000000000000000000000000
--- a/conversations/conv_020509.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1624-142933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.235655387959362,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-134149.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 0
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-174988.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1624-168623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-168623.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.689545794632334,
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-      "overlap": false,
-      "utterance_id": "3926-174988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-174988.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 65039
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.799106821535563,
-      "end_time": 32.0,
-      "duration": 3.2008931784644368,
-      "start_frame": 460785,
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-      "utterance_id": "4148-134149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-134149.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 84048
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 19.970602411084933,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4148/cough/0068.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020512.json b/conversations/conv_020512.json
deleted file mode 100644
index f7ddfd2e5a1eba45d463bd4131a9485ed61fec15..0000000000000000000000000000000000000000
--- a/conversations/conv_020512.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "336-125874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125874.flac |",
-      "real_speaker_id": "336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.371131114789251,
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-      "utterance_id": "336-125871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125871.flac |",
-      "real_speaker_id": "336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.868554867806996,
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-      "utterance_id": "336-125874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125874.flac |",
-      "real_speaker_id": "336",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6713-56749",
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-      "real_speaker_id": "6713",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "336-125876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125876.flac |",
-      "real_speaker_id": "336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "150-126107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/336/laugh/0031.wav",
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-      "start_time": 0,
-      "speaker_id": "336"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/336/laugh/0021.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6713/laugh/0042.wav",
-      "duration": 1.36,
-      "start_time": 19.323547846842846,
-      "speaker_id": "6713"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020513.json b/conversations/conv_020513.json
deleted file mode 100644
index 7c0cd451e3708f3692e233712c7f7a6f09b339b8..0000000000000000000000000000000000000000
--- a/conversations/conv_020513.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4687923160084986,
-      "duration": 3.4687923160084986,
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-      "overlap": false,
-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "7879-274125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274125.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 55500
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274125.flac |",
-      "real_speaker_id": "7879",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1571-141320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-141320.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 20.08593214624713,
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-      "utterance_id": "7879-274163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274163.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.365098955724847,
-      "end_time": 32.0,
-      "duration": 3.6349010442751535,
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-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 112137
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7879/laugh/0018.wav",
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-      "start_time": 17.65084244103599,
-      "speaker_id": "7879"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1571/laugh/0030.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1571/laugh/0046.wav",
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-      "start_time": 30.980290641346603,
-      "speaker_id": "1571"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020525.json b/conversations/conv_020525.json
deleted file mode 100644
index fedb675263e4e75928ce16b1d2589740c13b0615..0000000000000000000000000000000000000000
--- a/conversations/conv_020525.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.006809732569077,
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-      "utterance_id": "8108-280354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280354.flac |",
-      "real_speaker_id": "8108",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.503577517521585,
-      "end_time": 10.413300141037297,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135216.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "8108-280354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280354.flac |",
-      "real_speaker_id": "8108",
-      "position_frames": 64108
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-    {
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-      "speaker_id": 1,
-      "start_time": 17.257567627810708,
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-      "utterance_id": "1165-135220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135220.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5060-15562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1165-135220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135220.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 62082
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1165/laugh/0101.wav",
-      "duration": 1.28,
-      "start_time": 27.631418141864447,
-      "speaker_id": "1165"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020529.json b/conversations/conv_020529.json
deleted file mode 100644
index aca7150e9f6aa331b37079eabfb18511f4d6b6b8..0000000000000000000000000000000000000000
--- a/conversations/conv_020529.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.176469799841502,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 89611
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.94828757106005,
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-      "start_frame": 303172,
-      "duration_frames": 85309,
-      "overlap": true,
-      "utterance_id": "5606-54667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 109715
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.61220373743125,
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-      "duration": 4.846662576672165,
-      "start_frame": 409795,
-      "duration_frames": 77546,
-      "overlap": false,
-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.246450649217287,
-      "end_time": 31.176469799841502,
-      "duration": 0.930019150624215,
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-      "duration_frames": 14880,
-      "overlap": true,
-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 77546
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-      "start_time": 28.450666495822656
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-      "start_time": 3.8876788960657453
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5606/laugh/0063.wav",
-      "duration": 1.56,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4019/cough/0018.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020533.json b/conversations/conv_020533.json
deleted file mode 100644
index 49fac669df513c5d346a7256137ceef441f70ca4..0000000000000000000000000000000000000000
--- a/conversations/conv_020533.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.756122088630349,
-      "duration": 6.756122088630349,
-      "start_frame": 0,
-      "duration_frames": 108097,
-      "overlap": false,
-      "utterance_id": "5952-8681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-8681.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.017163488069643,
-      "end_time": 13.6376163422741,
-      "duration": 6.620452854204458,
-      "start_frame": 112274,
-      "duration_frames": 105927,
-      "overlap": false,
-      "utterance_id": "3885-1194",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-1194.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.12379198356723,
-      "end_time": 19.44688272596382,
-      "duration": 5.323090742396591,
-      "start_frame": 225980,
-      "duration_frames": 85169,
-      "overlap": false,
-      "utterance_id": "5952-8681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-8681.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 108097
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "start_frame": 320924,
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-      "utterance_id": "4297-13009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13009.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 24.259959201068003,
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-      "start_frame": 388159,
-      "duration_frames": 92644,
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-      "utterance_id": "5952-8681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-8681.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 193266
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.249653746499998,
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-      "duration": 1.7503462535000018,
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-      "duration_frames": 28005,
-      "overlap": false,
-      "utterance_id": "3885-12149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-12149.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5952/cough/0073.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5952/laugh/0074.wav",
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-      "start_time": 19.55348968700605,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5952/laugh/0019.wav",
-      "duration": 0.84,
-      "start_time": 23.360634223399693,
-      "speaker_id": "5952"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020538.json b/conversations/conv_020538.json
deleted file mode 100644
index 408fff1354ee26d0bc9f6dee2152ca8aea5ad3b1..0000000000000000000000000000000000000000
--- a/conversations/conv_020538.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.052361686511684,
-      "duration": 6.052361686511684,
-      "start_frame": 0,
-      "duration_frames": 96837,
-      "overlap": false,
-      "utterance_id": "7833-102239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.586021106439724,
-      "end_time": 12.918124408139725,
-      "duration": 6.332103301700002,
-      "start_frame": 105376,
-      "duration_frames": 101313,
-      "overlap": false,
-      "utterance_id": "8803-296082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296082.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.49382602482993,
-      "end_time": 18.295948617269318,
-      "duration": 4.802122592439389,
-      "start_frame": 215901,
-      "duration_frames": 76833,
-      "overlap": false,
-      "utterance_id": "7140-72212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72212.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.2359260650595,
-      "end_time": 25.79831946433054,
-      "duration": 6.562393399271041,
-      "start_frame": 307774,
-      "duration_frames": 104998,
-      "overlap": false,
-      "utterance_id": "8803-296085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296085.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.350605185802642,
-      "end_time": 30.565235876990506,
-      "duration": 4.214630691187864,
-      "start_frame": 421609,
-      "duration_frames": 67434,
-      "overlap": false,
-      "utterance_id": "7833-102238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102238.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.640916796784623,
-      "end_time": 32.0,
-      "duration": 0.359083203215377,
-      "start_frame": 506254,
-      "duration_frames": 5745,
-      "overlap": false,
-      "utterance_id": "7833-102239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 96837
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
-      "duration": 0.31396825396825395,
-      "start_time": 6.203939440147097
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
-      "duration": 1.501233023909856,
-      "start_time": 7.231076128845455
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7140/laugh/0075.wav",
-      "duration": 0.8941421849616964,
-      "start_time": 13.78433355838005,
-      "speaker_id": "7140"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020544.json b/conversations/conv_020544.json
deleted file mode 100644
index 4349bb8e3396db8535104a41a7b9025cdb5624e3..0000000000000000000000000000000000000000
--- a/conversations/conv_020544.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.100716135809489,
-      "duration": 4.100716135809489,
-      "start_frame": 0,
-      "duration_frames": 65611,
-      "overlap": false,
-      "utterance_id": "7518-86741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.416199647542085,
-      "end_time": 8.444566019030969,
-      "duration": 3.0283663714888838,
-      "start_frame": 86659,
-      "duration_frames": 48453,
-      "overlap": false,
-      "utterance_id": "4243-187024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-187024.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.511328840650327,
-      "end_time": 13.943839059604358,
-      "duration": 5.4325102189540315,
-      "start_frame": 136181,
-      "duration_frames": 86920,
-      "overlap": true,
-      "utterance_id": "8123-275216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275216.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.599158436878941,
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-      "duration": 4.666890826501449,
-      "start_frame": 233586,
-      "duration_frames": 74670,
-      "overlap": false,
-      "utterance_id": "7518-86741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 65611
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.899457358980833,
-      "end_time": 24.339351801448668,
-      "duration": 4.4398944424678355,
-      "start_frame": 318391,
-      "duration_frames": 71038,
-      "overlap": false,
-      "utterance_id": "7518-86741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 140281
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.59127162995,
-      "end_time": 30.112244002950575,
-      "duration": 5.520972373000575,
-      "start_frame": 393460,
-      "duration_frames": 88335,
-      "overlap": false,
-      "utterance_id": "8123-275193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275193.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.765828131417482,
-      "end_time": 32.0,
-      "duration": 1.2341718685825178,
-      "start_frame": 492253,
-      "duration_frames": 19746,
-      "overlap": false,
-      "utterance_id": "4243-187023",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-187023.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7518/laugh/0012.wav",
-      "duration": 1.4,
-      "start_time": 4.342725467436079,
-      "speaker_id": "7518"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8123/cough/0103.wav",
-      "duration": 1.4148611140173257,
-      "start_time": 7.0648665307032825,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8123/laugh/0099.wav",
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-      "start_time": 23.548023209634703,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4243/laugh/0052.wav",
-      "duration": 0.5517459288189126,
-      "start_time": 31.255424449505007,
-      "speaker_id": "4243"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020545.json b/conversations/conv_020545.json
deleted file mode 100644
index baa4a2f47dc848221e7cb8d5150019cec7ba94b0..0000000000000000000000000000000000000000
--- a/conversations/conv_020545.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.836677705777362,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.586529429211332,
-      "duration": 4.586529429211332,
-      "start_frame": 0,
-      "duration_frames": 73384,
-      "overlap": false,
-      "utterance_id": "8825-292252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292252.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.9734761909537735,
-      "end_time": 9.792480910654488,
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-      "overlap": false,
-      "utterance_id": "1081-125237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-125237.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.39685530708951,
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-      "duration": 3.6048702089126596,
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-      "overlap": false,
-      "utterance_id": "8825-292253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292253.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "4321-27567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-27567.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "8825-292252",
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-      "real_speaker_id": "8825",
-      "position_frames": 73384
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "4321",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.646226569141705,
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8825/laugh/0006.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1081/cough/0020.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8825/cough/0019.wav",
-      "duration": 1.2,
-      "start_time": 14.099181559517074,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020548.json b/conversations/conv_020548.json
deleted file mode 100644
index fd8eef0803995e20321ae3a11de13785f8352b26..0000000000000000000000000000000000000000
--- a/conversations/conv_020548.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.976869186347745,
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-      "start_frame": 0,
-      "duration_frames": 79629,
-      "overlap": false,
-      "utterance_id": "7704-106965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106965.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4217-9052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9052.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106965.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "4583",
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-    {
-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "speaker_id": "7704"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4217/laugh/0027.wav",
-      "duration": 1.52,
-      "start_time": 17.87768168340302,
-      "speaker_id": "4217"
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-      "start_time": 14.44487585331435,
-      "speaker_id": "4217"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020552.json b/conversations/conv_020552.json
deleted file mode 100644
index 5a6d79e55cae9f14c7bb41fa04a7d9cc4a1206cc..0000000000000000000000000000000000000000
--- a/conversations/conv_020552.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7126-59175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59175.flac |",
-      "real_speaker_id": "7126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.702813900823659,
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-      "utterance_id": "7126-59175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59175.flac |",
-      "real_speaker_id": "7126",
-      "position_frames": 83910
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.474984226350024,
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-      "duration_frames": 96167,
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-      "utterance_id": "6743-72306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6743-72306.flac |",
-      "real_speaker_id": "6743",
-      "position_frames": 93394
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.963351468273625,
-      "end_time": 29.31438180522299,
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-      "duration_frames": 85616,
-      "overlap": false,
-      "utterance_id": "7126-59167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59167.flac |",
-      "real_speaker_id": "7126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.912247857796427,
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-      "duration": 2.0877521422035734,
-      "start_frame": 478595,
-      "duration_frames": 33404,
-      "overlap": false,
-      "utterance_id": "198-129977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-129977.flac |",
-      "real_speaker_id": "198",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-      "event_class": "Frying",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/198/laugh/0008.wav",
-      "duration": 1.1,
-      "start_time": 30.381097579751835,
-      "speaker_id": "198"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020564.json b/conversations/conv_020564.json
deleted file mode 100644
index 2710b32240f5e22d63c4c6b9a9ba1d208783bdd2..0000000000000000000000000000000000000000
--- a/conversations/conv_020564.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.723928904481316,
-  "num_speakers": 2,
-  "overlap_rate": 0.42857142857142855,
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-      "utterance_id": "2823-160964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160964.flac |",
-      "real_speaker_id": "2823",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.462861464860409,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160964.flac |",
-      "real_speaker_id": "2823",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1387-134991.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "2823-160949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160949.flac |",
-      "real_speaker_id": "2823",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1387-134991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1387-134991.flac |",
-      "real_speaker_id": "1387",
-      "position_frames": 55931
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.45258897033686,
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-      "overlap": false,
-      "utterance_id": "2823-160949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160949.flac |",
-      "real_speaker_id": "2823",
-      "position_frames": 94662
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.786271579439905,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1387-130993.flac |",
-      "real_speaker_id": "1387",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1387"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020568.json b/conversations/conv_020568.json
deleted file mode 100644
index 98a55d581e786bb65616a14386f16ca425e117c2..0000000000000000000000000000000000000000
--- a/conversations/conv_020568.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5933-104482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-104482.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.080623598884929,
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-      "utterance_id": "3072-155948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155948.flac |",
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-      "position_frames": 0
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-      "utterance_id": "3072-155949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155949.flac |",
-      "real_speaker_id": "3072",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "5933",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3072",
-      "position_frames": 82173
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "5933-104482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-104482.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 90783
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
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-    {
-      "event_class": "laugh",
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-    {
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-    {
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-      "duration": 0.88,
-      "start_time": 31.12,
-      "speaker_id": "5933"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020572.json b/conversations/conv_020572.json
deleted file mode 100644
index 4b413306f9bcb33d9643cce4209b79260c10a634..0000000000000000000000000000000000000000
--- a/conversations/conv_020572.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3934-102413.flac |",
-      "real_speaker_id": "3934",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "978-132494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-132494.flac |",
-      "real_speaker_id": "978",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122827.flac |",
-      "real_speaker_id": "16",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "978-132494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-132494.flac |",
-      "real_speaker_id": "978",
-      "position_frames": 52825
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "duration": 1.02,
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-      "event_class": "laugh",
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-      "duration": 1.44,
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-      "duration": 1.48,
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-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "978"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020579.json b/conversations/conv_020579.json
deleted file mode 100644
index 335c9b2de4ee1aa936d1263bce922ba538c5b7c9..0000000000000000000000000000000000000000
--- a/conversations/conv_020579.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
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-      "utterance_id": "2262-141716",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141716.flac |",
-      "real_speaker_id": "2262",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141716.flac |",
-      "real_speaker_id": "2262",
-      "position_frames": 78530
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-14986.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
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-  "background_events": [
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-    {
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-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "1166"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020580.json b/conversations/conv_020580.json
deleted file mode 100644
index 3508ee12e50271aa84616424274f407cafb701c0..0000000000000000000000000000000000000000
--- a/conversations/conv_020580.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.25,
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-      "utterance_id": "4034-5706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-5706.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6967-50150.flac |",
-      "real_speaker_id": "6967",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-12475.flac |",
-      "real_speaker_id": "4034",
-      "position_frames": 0
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-    {
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-      "utterance_id": "5350-205003",
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-      "real_speaker_id": "5350",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-12475.flac |",
-      "real_speaker_id": "4034",
-      "position_frames": 60532
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-    {
-      "segment_id": "seg0006",
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-      "real_speaker_id": "5350",
-      "position_frames": 56154
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-      "segment_id": "seg0007",
-      "speaker_id": 1,
-      "start_time": 31.380197334027848,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-12475.flac |",
-      "real_speaker_id": "4034",
-      "position_frames": 122677
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-  "paralinguistic_events": [
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-    {
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-      "speaker_id": "6967"
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "start_time": 30.84,
-      "speaker_id": "4034"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020587.json b/conversations/conv_020587.json
deleted file mode 100644
index 4744fe90724b17c4cec3a510f5457a3bb14d9ad4..0000000000000000000000000000000000000000
--- a/conversations/conv_020587.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.314560178442505,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8291-282929",
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-    {
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-    {
-      "event_class": "Vacuum_cleaner",
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-      "start_time": 10.957522331069457,
-      "speaker_id": "8291"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/434/cough/0093.wav",
-      "duration": 0.5009988228865259,
-      "start_time": 29.564313023803006,
-      "speaker_id": "434"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020591.json b/conversations/conv_020591.json
deleted file mode 100644
index 69e72ea66f1c1ee62cf6b302fef42e095c954b6e..0000000000000000000000000000000000000000
--- a/conversations/conv_020591.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.395084711988039,
-      "duration": 5.395084711988039,
-      "start_frame": 0,
-      "duration_frames": 86321,
-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.908127631462288,
-      "end_time": 9.065424501261253,
-      "duration": 3.157296869798965,
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-      "duration_frames": 50516,
-      "overlap": false,
-      "utterance_id": "585-294811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.561136501417812,
-      "end_time": 14.550763903489397,
-      "duration": 5.989627402071585,
-      "start_frame": 136978,
-      "duration_frames": 95834,
-      "overlap": true,
-      "utterance_id": "585-294811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 50516
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.047230829804896,
-      "end_time": 22.239070299758325,
-      "duration": 6.191839469953428,
-      "start_frame": 256755,
-      "duration_frames": 99069,
-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 86321
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.13818805082473,
-      "end_time": 27.28994878630657,
-      "duration": 5.151760735481841,
-      "start_frame": 354211,
-      "duration_frames": 82428,
-      "overlap": true,
-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.19095604524373,
-      "end_time": 32.0,
-      "duration": 3.8090439547562696,
-      "start_frame": 451055,
-      "duration_frames": 60944,
-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 185390
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 1.7514233304312308,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/585/cough/0001.wav",
-      "duration": 1.16,
-      "start_time": 9.154882571203732,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6411/laugh/0036.wav",
-      "duration": 0.7165563637508892,
-      "start_time": 21.12408282302027,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6411/cough/0082.wav",
-      "duration": 0.6070958578777037,
-      "start_time": 27.4749545514436,
-      "speaker_id": "6411"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020596.json b/conversations/conv_020596.json
deleted file mode 100644
index 6f1d2c9db9c882cc5c63c55e4b48598fb8b6ed79..0000000000000000000000000000000000000000
--- a/conversations/conv_020596.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8008-271812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271812.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.202980977930221,
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-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8008-271817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271817.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.36089858211345,
-      "end_time": 21.77317896901894,
-      "duration": 5.41228038690549,
-      "start_frame": 261774,
-      "duration_frames": 86596,
-      "overlap": false,
-      "utterance_id": "2361-165622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-165622.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.063706584282443,
-      "end_time": 26.546155891871038,
-      "duration": 4.482449307588594,
-      "start_frame": 353019,
-      "duration_frames": 71719,
-      "overlap": false,
-      "utterance_id": "8008-271811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271811.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.164386476060365,
-      "end_time": 32.0,
-      "duration": 4.835613523939635,
-      "start_frame": 434630,
-      "duration_frames": 77369,
-      "overlap": false,
-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 63149
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2361/laugh/0029.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8008/cough/0025.wav",
-      "duration": 0.5941688261171545,
-      "start_time": 26.57266628622778,
-      "speaker_id": "8008"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020600.json b/conversations/conv_020600.json
deleted file mode 100644
index 1e06c2c7916d8fd022e25cc1224c91bcc55a5d38..0000000000000000000000000000000000000000
--- a/conversations/conv_020600.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3717-21493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21493.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.214527467817981,
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-      "utterance_id": "8033-284028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-284028.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.025559437833254,
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-      "duration_frames": 70967,
-      "overlap": false,
-      "utterance_id": "3717-21493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21493.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 76712
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "6352-83633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6352-83633.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6352-88007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6352-88007.flac |",
-      "real_speaker_id": "6352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.02488446147423,
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-      "duration": 4.97511553852577,
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-      "utterance_id": "8033-284028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-284028.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 105741
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
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-      "speaker_id": "6352"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020607.json b/conversations/conv_020607.json
deleted file mode 100644
index 1522aea16896905cfe2404b7b1347c6d8d414fb1..0000000000000000000000000000000000000000
--- a/conversations/conv_020607.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.5563960157343395,
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-      "start_frame": 0,
-      "duration_frames": 104902,
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-      "utterance_id": "8033-284028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-284028.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "6555-397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-397.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_3.wav",
-      "duration": 4.60890198872354,
-      "start_time": 16.68528479448401
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
-      "duration": 1.5286980098487124,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8033/laugh/0098.wav",
-      "duration": 0.96,
-      "start_time": 6.835776019019768,
-      "speaker_id": "8033"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8295/laugh/0132.wav",
-      "duration": 1.0301595973209934,
-      "start_time": 11.75933803546831,
-      "speaker_id": "8295"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8033/laugh/0111.wav",
-      "duration": 0.9751759893139992,
-      "start_time": 16.615513045500364,
-      "speaker_id": "8033"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6555/laugh/0060.wav",
-      "duration": 0.96,
-      "start_time": 26.747907147903774,
-      "speaker_id": "6555"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020611.json b/conversations/conv_020611.json
deleted file mode 100644
index c336f70bfcc19fc4005a94bcb901c71e63c6c873..0000000000000000000000000000000000000000
--- a/conversations/conv_020611.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.097615218766641,
-      "duration": 4.097615218766641,
-      "start_frame": 0,
-      "duration_frames": 65561,
-      "overlap": false,
-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.919126482457717,
-      "end_time": 7.960115371637674,
-      "duration": 3.0409888891799572,
-      "start_frame": 78706,
-      "duration_frames": 48655,
-      "overlap": false,
-      "utterance_id": "1445-139404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139404.flac |",
-      "real_speaker_id": "1445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.079406440151184,
-      "end_time": 13.539052791078593,
-      "duration": 4.459646350927409,
-      "start_frame": 145270,
-      "duration_frames": 71354,
-      "overlap": false,
-      "utterance_id": "1152-126549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126549.flac |",
-      "real_speaker_id": "1152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.709362276466713,
-      "end_time": 20.068169651753685,
-      "duration": 6.358807375286971,
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-      "duration_frames": 101740,
-      "overlap": false,
-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.681679627467023,
-      "end_time": 26.835097082322,
-      "duration": 6.153417454854977,
-      "start_frame": 330906,
-      "duration_frames": 98454,
-      "overlap": false,
-      "utterance_id": "1152-126549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126549.flac |",
-      "real_speaker_id": "1152",
-      "position_frames": 71354
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.33704880093095,
-      "end_time": 32.0,
-      "duration": 4.662951199069049,
-      "start_frame": 437392,
-      "duration_frames": 74607,
-      "overlap": false,
-      "utterance_id": "1445-139404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139404.flac |",
-      "real_speaker_id": "1445",
-      "position_frames": 48655
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 17.163759732767794,
-      "start_time": 3.6541743583256006
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
-      "duration": 1.6198327161306785,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
-      "duration": 0.9133560090702948,
-      "start_time": 29.947790006719995
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4474/laugh/0081.wav",
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-      "speaker_id": "4474"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1445/laugh/0071.wav",
-      "duration": 0.9096867214839279,
-      "start_time": 6.843843467444436,
-      "speaker_id": "1445"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1152/laugh/0001.wav",
-      "duration": 1.6,
-      "start_time": 9.40596270908374,
-      "speaker_id": "1152"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1152/laugh/0120.wav",
-      "duration": 0.6097318994737114,
-      "start_time": 26.84797674315363,
-      "speaker_id": "1152"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1445/cough/0050.wav",
-      "duration": 0.6460487839285651,
-      "start_time": 31.353951216071437,
-      "speaker_id": "1445"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020616.json b/conversations/conv_020616.json
deleted file mode 100644
index dbebfa49da1ea8d532c42a92709e0ca77a4df62b..0000000000000000000000000000000000000000
--- a/conversations/conv_020616.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.448665999522659,
-      "duration": 4.448665999522659,
-      "start_frame": 0,
-      "duration_frames": 71178,
-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.011231839531222,
-      "end_time": 9.665509926046898,
-      "duration": 4.654278086515676,
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-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 71178
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration": 4.795226108593569,
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-      "utterance_id": "7278-104730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-104730.flac |",
-      "real_speaker_id": "7278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.551609282274832,
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-      "duration": 4.464206377086974,
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-      "duration_frames": 71427,
-      "overlap": true,
-      "utterance_id": "7320-93280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-93280.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.287747157571552,
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-      "duration_frames": 50733,
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-      "utterance_id": "7278-104730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-104730.flac |",
-      "real_speaker_id": "7278",
-      "position_frames": 76723
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.762746406777197,
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-      "duration": 4.525567639652557,
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-      "duration_frames": 72409,
-      "overlap": false,
-      "utterance_id": "7320-104988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-104988.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.07029255913367,
-      "end_time": 32.0,
-      "duration": 2.9297074408663306,
-      "start_frame": 465124,
-      "duration_frames": 46875,
-      "overlap": false,
-      "utterance_id": "7278-104730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-104730.flac |",
-      "real_speaker_id": "7278",
-      "position_frames": 127456
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-      "start_time": 27.23374976137839
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7957/cough/0033.wav",
-      "duration": 1.04,
-      "start_time": 9.731125677800991,
-      "speaker_id": "7957"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7320/laugh/0053.wav",
-      "duration": 1.3705218185805947,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7278/cough/0049.wav",
-      "duration": 0.8397087096769631,
-      "start_time": 29.76551966963843,
-      "speaker_id": "7278"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020620.json b/conversations/conv_020620.json
deleted file mode 100644
index 0489c7f9a0e9e6e36cd45fd869add53571efc2a4..0000000000000000000000000000000000000000
--- a/conversations/conv_020620.json
+++ /dev/null
@@ -1,101 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.35428641506612,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.8232945181683355,
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-      "overlap": false,
-      "utterance_id": "7874-110243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
-      "real_speaker_id": "7874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.464451899743161,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34570.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.431057915379911,
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-      "duration_frames": 85302,
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-      "utterance_id": "7874-110243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
-      "real_speaker_id": "7874",
-      "position_frames": 109172
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.373002764516563,
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-      "duration": 6.228192072415563,
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-      "overlap": false,
-      "utterance_id": "6088-34571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34571.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.103199106728905,
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-      "duration_frames": 84017,
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-      "utterance_id": "7874-110243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
-      "real_speaker_id": "7874",
-      "position_frames": 194474
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
-      "start_time": 13.052063636353912
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
-      "duration": 2.079921689080689,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_14.wav",
-      "duration": 1.5647845804988663,
-      "start_time": 6.996063285516749
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_020636.json b/conversations/conv_020636.json
deleted file mode 100644
index 55996a8c4418bc520dd5bb5a214942f614241cae..0000000000000000000000000000000000000000
--- a/conversations/conv_020636.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.796470182987387,
-      "duration": 5.796470182987387,
-      "start_frame": 0,
-      "duration_frames": 92743,
-      "overlap": false,
-      "utterance_id": "104-132092",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-132092.flac |",
-      "real_speaker_id": "104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.400926798524962,
-      "end_time": 12.614691312106324,
-      "duration": 6.213764513581362,
-      "start_frame": 102414,
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-      "utterance_id": "7148-59157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-59157.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.900388336916379,
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-      "duration_frames": 95821,
-      "overlap": false,
-      "utterance_id": "3747-173589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-59157.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 99420
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-132092.flac |",
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "start_time": 0,
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-      "speaker_id": "3747"
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-      "event_class": "laugh",
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-      "start_time": 30.15174147118463,
-      "speaker_id": "104"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020641.json b/conversations/conv_020641.json
deleted file mode 100644
index 485caf738e1e021530da45099ced44dee074e217..0000000000000000000000000000000000000000
--- a/conversations/conv_020641.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8316-279798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
-      "start_time": 4.696952494747137,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-65787.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 69754
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 156910
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.813089491241975,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 216691
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "8316-279798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 280824
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.802762511021214,
-      "end_time": 32.0,
-      "duration": 1.1972374889787858,
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-      "utterance_id": "6351-65787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-65787.flac |",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020646.json b/conversations/conv_020646.json
deleted file mode 100644
index 98a595597fe134a4a6a67acdf459bcf36a5bae80..0000000000000000000000000000000000000000
--- a/conversations/conv_020646.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.180860363424923,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2628-109663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-109663.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "331-884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-884.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 71394
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.203218427168018,
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-      "overlap": false,
-      "utterance_id": "331-135126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-135126.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.712744132704106,
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-      "duration": 6.468116230720816,
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-      "utterance_id": "2628-109663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-109663.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 55152
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2628/laugh/0062.wav",
-      "duration": 1.100342521806188,
-      "start_time": 23.32667166956708,
-      "speaker_id": "2628"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020650.json b/conversations/conv_020650.json
deleted file mode 100644
index 23e98ae8e233b2d7249424663a9b87c161ebf9b3..0000000000000000000000000000000000000000
--- a/conversations/conv_020650.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2397-162238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162238.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.277977193816975,
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-      "utterance_id": "111-126277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126277.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "111",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-134313.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.05136773779566,
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-      "utterance_id": "2397-162239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162239.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.61295968021799,
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-      "duration_frames": 6192,
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-      "utterance_id": "111-126265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126265.flac |",
-      "real_speaker_id": "111",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2397/laugh/0017.wav",
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-      "duration": 0.76,
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-}
\ No newline at end of file
diff --git a/conversations/conv_020657.json b/conversations/conv_020657.json
deleted file mode 100644
index 9eaf75be409e6a23d612a1ebdcdb71b8ccfd1d08..0000000000000000000000000000000000000000
--- a/conversations/conv_020657.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.832886311376558,
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-      "utterance_id": "7789-258266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-258266.flac |",
-      "real_speaker_id": "7789",
-      "position_frames": 0
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-    {
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-      "utterance_id": "374-180299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180299.flac |",
-      "real_speaker_id": "374",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180299.flac |",
-      "real_speaker_id": "374",
-      "position_frames": 55631
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-      "start_time": 31.1949288297538,
-      "speaker_id": "374"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020661.json b/conversations/conv_020661.json
deleted file mode 100644
index 272788032636fb16d800089386b6490ad4f869d9..0000000000000000000000000000000000000000
--- a/conversations/conv_020661.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.758670186196575,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "4226-185488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-185488.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.947768183550633,
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-      "utterance_id": "152-87733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-87733.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-87733.flac |",
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105171.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_020677.json b/conversations/conv_020677.json
deleted file mode 100644
index 9524168672d235f29e6cd06c1d7acc64661323dc..0000000000000000000000000000000000000000
--- a/conversations/conv_020677.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-34548.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8824-279153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
-      "real_speaker_id": "8824",
-      "position_frames": 155153
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8824/laugh/0023.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020682.json b/conversations/conv_020682.json
deleted file mode 100644
index f39d7c687df4cb87b1605eef8912b20cff74dfde..0000000000000000000000000000000000000000
--- a/conversations/conv_020682.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6743-72306.flac |",
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-    {
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-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6743/laugh/0056.wav",
-      "duration": 0.56714845438946,
-      "start_time": 20.90560042644751,
-      "speaker_id": "6743"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2062/laugh/0053.wav",
-      "duration": 1.4154923861603326,
-      "start_time": 25.942710628077982,
-      "speaker_id": "2062"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6743/cough/0000.wav",
-      "duration": 1.12,
-      "start_time": 29.901151391271586,
-      "speaker_id": "6743"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020683.json b/conversations/conv_020683.json
deleted file mode 100644
index e0cbb5c5f877e102f44f3268712b83bc1b1036f2..0000000000000000000000000000000000000000
--- a/conversations/conv_020683.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "end_time": 4.752158772210527,
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-      "utterance_id": "4667-102196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.407337933634832,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1867-154075.flac |",
-      "real_speaker_id": "1867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.265855569749409,
-      "end_time": 15.423583403488976,
-      "duration": 3.1577278337395676,
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-      "utterance_id": "1867-154075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1867-154075.flac |",
-      "real_speaker_id": "1867",
-      "position_frames": 99211
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.657094121591562,
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-      "duration": 5.90689196075797,
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-      "duration_frames": 94510,
-      "overlap": false,
-      "utterance_id": "4667-102196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 76034
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.151818538025225,
-      "end_time": 28.168703065921026,
-      "duration": 5.016884527895801,
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-      "duration_frames": 80270,
-      "overlap": false,
-      "utterance_id": "797-127183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127183.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.4829375294113,
-      "end_time": 32.0,
-      "duration": 3.5170624705887015,
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-      "duration_frames": 56272,
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-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "speaker_id": "797"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020694.json b/conversations/conv_020694.json
deleted file mode 100644
index 9e735e6e1bd7f6f41899d10b53e493ef81a1e517..0000000000000000000000000000000000000000
--- a/conversations/conv_020694.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
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-      "start_time": 0.0,
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-      "utterance_id": "1513-140222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1513-140222.flac |",
-      "real_speaker_id": "1513",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69649.flac |",
-      "real_speaker_id": "6484",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69649.flac |",
-      "real_speaker_id": "6484",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1513-140221.flac |",
-      "real_speaker_id": "1513",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 16.749884106277694,
-      "end_time": 21.33023074321681,
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-      "overlap": true,
-      "utterance_id": "3436-172162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172162.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.056708001463456,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69655.flac |",
-      "real_speaker_id": "6484",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_020698.json b/conversations/conv_020698.json
deleted file mode 100644
index 5a99bf51cdbb36e5b78882b0461dd00853d488bc..0000000000000000000000000000000000000000
--- a/conversations/conv_020698.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.72959308002904,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7679-276769",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7679-276769.flac |",
-      "real_speaker_id": "7679",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1487",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_020703.json b/conversations/conv_020703.json
deleted file mode 100644
index 8ac30a01e2f5fa96c6a614c3bbf377316ce5dbb9..0000000000000000000000000000000000000000
--- a/conversations/conv_020703.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.27116899288273,
-  "num_speakers": 3,
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-      "utterance_id": "7367-86737",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "8163-274549",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8163/laugh/0073.wav",
-      "duration": 1.019017294133809,
-      "start_time": 26.731434785515262,
-      "speaker_id": "8163"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8163/cough/0117.wav",
-      "duration": 1.24,
-      "start_time": 28.784660112212222,
-      "speaker_id": "8163"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020704.json b/conversations/conv_020704.json
deleted file mode 100644
index cfef7ffaf469af24e82013fc9690aa54887f6ef7..0000000000000000000000000000000000000000
--- a/conversations/conv_020704.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.951862178946024,
-      "duration": 6.951862178946024,
-      "start_frame": 0,
-      "duration_frames": 111229,
-      "overlap": false,
-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.292716394709755,
-      "end_time": 12.383579104045173,
-      "duration": 5.090862709335418,
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-      "duration_frames": 81453,
-      "overlap": false,
-      "utterance_id": "163-121908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.797032887352097,
-      "end_time": 18.019265651824142,
-      "duration": 5.222232764472044,
-      "start_frame": 204752,
-      "duration_frames": 83555,
-      "overlap": false,
-      "utterance_id": "3114-170976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.521364978204844,
-      "end_time": 22.894165408285097,
-      "duration": 4.372800430080256,
-      "start_frame": 296341,
-      "duration_frames": 69964,
-      "overlap": false,
-      "utterance_id": "4958-11613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
-      "real_speaker_id": "4958",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.191179800858315,
-      "end_time": 27.781644700682616,
-      "duration": 4.590464899824301,
-      "start_frame": 371058,
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-      "overlap": false,
-      "utterance_id": "163-122947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-122947.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.569871497991564,
-      "end_time": 32.0,
-      "duration": 3.4301285020084364,
-      "start_frame": 457117,
-      "duration_frames": 54882,
-      "overlap": false,
-      "utterance_id": "3114-170976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 83555
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
-      "duration": 1.855781545074842,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3114/laugh/0087.wav",
-      "duration": 1.12,
-      "start_time": 0.5258043565213685,
-      "speaker_id": "3114"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020705.json b/conversations/conv_020705.json
deleted file mode 100644
index 216139640fc9654397cfbf0cfd506904a5a30b3a..0000000000000000000000000000000000000000
--- a/conversations/conv_020705.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.011584677417172,
-      "duration": 6.011584677417172,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3001-160952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160952.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.435487162906231,
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-      "duration": 4.730014332914907,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.915404015859208,
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-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.61920086052094,
-      "end_time": 24.14924893740679,
-      "duration": 6.530048076885846,
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-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 75680
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.29562018402879,
-      "end_time": 30.213201446155637,
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-      "overlap": false,
-      "utterance_id": "413-22436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22436.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.68990653169213,
-      "end_time": 32.0,
-      "duration": 1.310093468307869,
-      "start_frame": 491038,
-      "duration_frames": 20961,
-      "overlap": false,
-      "utterance_id": "3001-160952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160952.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 96185
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6353/laugh/0071.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.4516681067304674,
-      "start_time": 11.415361734979324,
-      "speaker_id": "3001"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3001/laugh/0064.wav",
-      "duration": 1.4,
-      "start_time": 29.202533082610625,
-      "speaker_id": "3001"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020708.json b/conversations/conv_020708.json
deleted file mode 100644
index 7797e4e0e3ad0b17e1244cb54ce7f8288f63d385..0000000000000000000000000000000000000000
--- a/conversations/conv_020708.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.2754571805306245,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5717-61421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-61421.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.817337453485497,
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-      "duration": 4.874882427797647,
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-      "duration_frames": 77998,
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-      "utterance_id": "3638-696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.676822925023899,
-      "end_time": 16.0147599028349,
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-      "overlap": false,
-      "utterance_id": "5717-94876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-94876.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.577357886578696,
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-      "duration": 5.685904155944374,
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-      "overlap": false,
-      "utterance_id": "3638-758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-758.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.309160308986918,
-      "end_time": 26.63543211519155,
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-      "start_frame": 356946,
-      "duration_frames": 69220,
-      "overlap": true,
-      "utterance_id": "3588-54099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-54099.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.168163711964652,
-      "end_time": 32.0,
-      "duration": 3.8318362880353476,
-      "start_frame": 450690,
-      "duration_frames": 61309,
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-      "utterance_id": "3638-758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-758.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 90974
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5717/laugh/0092.wav",
-      "duration": 0.92,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5717/cough/0034.wav",
-      "duration": 0.9424615922750437,
-      "start_time": 0,
-      "speaker_id": "5717"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020712.json b/conversations/conv_020712.json
deleted file mode 100644
index 8c120f79ed4e77932efd74813713cde113c508f7..0000000000000000000000000000000000000000
--- a/conversations/conv_020712.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.790983717384038,
-      "duration": 5.790983717384038,
-      "start_frame": 0,
-      "duration_frames": 92655,
-      "overlap": false,
-      "utterance_id": "4687-43337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-43337.flac |",
-      "real_speaker_id": "4687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.858486925898621,
-      "end_time": 13.248827895537062,
-      "duration": 6.390340969638442,
-      "start_frame": 109735,
-      "duration_frames": 102245,
-      "overlap": false,
-      "utterance_id": "7000-83696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83696.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.376783195199192,
-      "end_time": 18.372558447517136,
-      "duration": 4.9957752523179435,
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-      "duration_frames": 79932,
-      "overlap": false,
-      "utterance_id": "7000-83696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83696.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 102245
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.202761844649203,
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-      "real_speaker_id": "4687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "position_frames": 182177
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "103-1241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4687/laugh/0069.wav",
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-      "start_time": 20.451592262191397,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020715.json b/conversations/conv_020715.json
deleted file mode 100644
index 27453cb99e877eee5609aa87c58f35c456f91714..0000000000000000000000000000000000000000
--- a/conversations/conv_020715.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.495952947476954,
-      "duration": 4.495952947476954,
-      "start_frame": 0,
-      "duration_frames": 71935,
-      "overlap": false,
-      "utterance_id": "3738-176680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176680.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.843583853223507,
-      "end_time": 9.11665858036496,
-      "duration": 4.273074727141454,
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-      "duration_frames": 68369,
-      "overlap": true,
-      "utterance_id": "3738-176680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176680.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 71935
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.261840288693502,
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-      "duration": 6.0340051320200185,
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-      "overlap": false,
-      "utterance_id": "5220-112590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-112590.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.990799120574447,
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-      "duration": 4.374046118202861,
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-      "utterance_id": "3738-176680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176680.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 140304
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.915930943447503,
-      "end_time": 29.06255147708854,
-      "duration": 6.146620533641036,
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-      "overlap": false,
-      "utterance_id": "666-11244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.396361079432367,
-      "end_time": 32.0,
-      "duration": 2.603638920567633,
-      "start_frame": 470341,
-      "duration_frames": 41658,
-      "overlap": false,
-      "utterance_id": "3738-176680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176680.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 210288
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
-      "duration": 0.21675736961451247,
-      "start_time": 27.268957532497016
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3738/laugh/0074.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "3738"
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "speaker_id": "5220"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.46,
-      "start_time": 17.509083519411785,
-      "speaker_id": "3738"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/666/laugh/0066.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/666/cough/0031.wav",
-      "duration": 0.32985525501836455,
-      "start_time": 29.156557480465565,
-      "speaker_id": "666"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020724.json b/conversations/conv_020724.json
deleted file mode 100644
index ed12178f7a161d7f675b995de79fbfc62667cfc8..0000000000000000000000000000000000000000
--- a/conversations/conv_020724.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "207-122801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-122801.flac |",
-      "real_speaker_id": "207",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71946.flac |",
-      "real_speaker_id": "6513",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.987070034626864,
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-      "utterance_id": "6513-71944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71944.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.841367065057266,
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-      "utterance_id": "1958-144503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 92830
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.073110194862405,
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-      "overlap": false,
-      "utterance_id": "1958-144503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 153756
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "duration": 1.04,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
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-    {
-      "event_class": "cough",
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-      "duration": 1.0296291238816304,
-      "start_time": 25.675316042173133,
-      "speaker_id": "6513"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020728.json b/conversations/conv_020728.json
deleted file mode 100644
index 2a61d97157880d1120b660d853163a70dd500c17..0000000000000000000000000000000000000000
--- a/conversations/conv_020728.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139355.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
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-      "real_speaker_id": "2351",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2351-151970",
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-      "real_speaker_id": "2351",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139355.flac |",
-      "real_speaker_id": "2012",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-      "start_time": 30.86,
-      "speaker_id": "2012"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020729.json b/conversations/conv_020729.json
deleted file mode 100644
index 3add076af834de3f32a6f7b341aeba2a416535ee..0000000000000000000000000000000000000000
--- a/conversations/conv_020729.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_020732.json b/conversations/conv_020732.json
deleted file mode 100644
index 63a09870f6c08158b92c4256d10fa65c76c5512f..0000000000000000000000000000000000000000
--- a/conversations/conv_020732.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_020742.json b/conversations/conv_020742.json
deleted file mode 100644
index 516487fa858c7362f22c5e10a64999536ecfb39e..0000000000000000000000000000000000000000
--- a/conversations/conv_020742.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_020745.json b/conversations/conv_020745.json
deleted file mode 100644
index 80eacc9e59c057c9c8fef9ccdb17e963b377d791..0000000000000000000000000000000000000000
--- a/conversations/conv_020745.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_020749.json b/conversations/conv_020749.json
deleted file mode 100644
index a49b4d1d6c4fdb5272cdd062e0a9f99c4d8ed781..0000000000000000000000000000000000000000
--- a/conversations/conv_020749.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/laugh/0020.wav",
-      "duration": 1.3884905220123924,
-      "start_time": 8.895396931447241,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/cough/0001.wav",
-      "duration": 0.6076269989027312,
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-      "speaker_id": "45"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7994/laugh/0023.wav",
-      "duration": 1.08,
-      "start_time": 14.35605209928236,
-      "speaker_id": "7994"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/laugh/0040.wav",
-      "duration": 1.52,
-      "start_time": 28.035322395427233,
-      "speaker_id": "45"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020753.json b/conversations/conv_020753.json
deleted file mode 100644
index 0ebaa81979f444198f380541303590a3587fb60c..0000000000000000000000000000000000000000
--- a/conversations/conv_020753.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.472361745517816,
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-      "overlap": false,
-      "utterance_id": "6674-71396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6674-71396.flac |",
-      "real_speaker_id": "6674",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.937296844149994,
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-      "duration": 4.311307704265294,
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-      "duration_frames": 68980,
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-      "utterance_id": "6674-71400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6674-71400.flac |",
-      "real_speaker_id": "6674",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "781-127518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.19046533320295,
-      "end_time": 21.394518638875574,
-      "duration": 5.204053305672625,
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-      "overlap": false,
-      "utterance_id": "6660-97655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-97655.flac |",
-      "real_speaker_id": "6660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.721207046881826,
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-      "duration_frames": 63641,
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-      "utterance_id": "6674-71397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6674-71397.flac |",
-      "real_speaker_id": "6674",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.71825874817458,
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-      "duration": 5.281741251825419,
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-      "duration_frames": 84507,
-      "overlap": false,
-      "utterance_id": "6674-71400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6674-71400.flac |",
-      "real_speaker_id": "6674",
-      "position_frames": 68980
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
-      "duration": 29.885306836159774,
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.06,
-      "start_time": 0,
-      "speaker_id": "6674"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6674/laugh/0077.wav",
-      "duration": 0.7616566042496355,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6674/laugh/0120.wav",
-      "duration": 0.5042937586084055,
-      "start_time": 25.763208879950863,
-      "speaker_id": "6674"
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-    {
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-      "duration": 0.44593013202031695,
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-      "speaker_id": "6674"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6674/laugh/0120.wav",
-      "duration": 1.18,
-      "start_time": 30.82,
-      "speaker_id": "6674"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020754.json b/conversations/conv_020754.json
deleted file mode 100644
index 8d4138ec40bc7fd98205d8b80071cf3e007785a4..0000000000000000000000000000000000000000
--- a/conversations/conv_020754.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.732519449067567,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2448-141428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-141428.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4945-29090.flac |",
-      "real_speaker_id": "4945",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 8.352470837227008,
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-      "overlap": true,
-      "utterance_id": "2448-163517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163517.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.197554438324072,
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-      "utterance_id": "2448-141428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-141428.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 53214
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.133123963053045,
-      "end_time": 24.267294467098314,
-      "duration": 5.134170504045269,
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-      "overlap": false,
-      "utterance_id": "1815-9918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-9918.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.026500711995485,
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-      "utterance_id": "2448-141428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-141428.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 121629
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1815/laugh/0114.wav",
-      "duration": 1.22,
-      "start_time": 22.707477192758887,
-      "speaker_id": "1815"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020765.json b/conversations/conv_020765.json
deleted file mode 100644
index 9b6ecf8a11fd509181b2b6faa796356a384d93f7..0000000000000000000000000000000000000000
--- a/conversations/conv_020765.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 101322
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-    {
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-      "real_speaker_id": "451",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.10943104601892,
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-      "duration": 3.2761528454283746,
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-      "overlap": false,
-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 175903
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 4.842848579834495,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126829.flac |",
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-      "position_frames": 76400
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_020769.json b/conversations/conv_020769.json
deleted file mode 100644
index 18e80f60f576f3013f0bd914122daa0d1d6d5579..0000000000000000000000000000000000000000
--- a/conversations/conv_020769.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.277242135613135,
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-      "utterance_id": "6339-65534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "5876-8675",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 0
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-  "background_events": [
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-      "speaker_id": "6339"
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-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 17.389812928463797,
-      "speaker_id": "5876"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020773.json b/conversations/conv_020773.json
deleted file mode 100644
index 6df6c795ec087b120c6b286bdee780dbfabbcad1..0000000000000000000000000000000000000000
--- a/conversations/conv_020773.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.88311834610434,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0110708006859483,
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-      "utterance_id": "639-143022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.922219082731848,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66121.flac |",
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-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 16.371320048374276,
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-      "utterance_id": "639-124526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-124526.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.193614202991483,
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-      "overlap": false,
-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 96233
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.813231944962954,
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-      "overlap": false,
-      "utterance_id": "639-124526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-124526.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 78812
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-      "start_time": 27.71851162246995,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020786.json b/conversations/conv_020786.json
deleted file mode 100644
index 5da8d4daf0538923c6e5f4a7785eda9db77c27c0..0000000000000000000000000000000000000000
--- a/conversations/conv_020786.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "8565-290391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290391.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74597.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290398.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "7065-74598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74598.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.048779824380254,
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-      "duration": 2.9512201756197456,
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-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 96960
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_020790.json b/conversations/conv_020790.json
deleted file mode 100644
index a93fffc7c60471c1a25e4972aa217ad27c8f8321..0000000000000000000000000000000000000000
--- a/conversations/conv_020790.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.609932998386373,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31920.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-134149.flac |",
-      "real_speaker_id": "4148",
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-      "real_speaker_id": "1740",
-      "position_frames": 227447
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 26.174778541371488,
-      "speaker_id": "4148"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020791.json b/conversations/conv_020791.json
deleted file mode 100644
index c71299d1e9ce5d1df82c9460b8405a2f536f0f5d..0000000000000000000000000000000000000000
--- a/conversations/conv_020791.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3257-169284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169284.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/476-133471.flac |",
-      "real_speaker_id": "476",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169284.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/476-134312.flac |",
-      "real_speaker_id": "476",
-      "position_frames": 0
-    }
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "476"
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-}
\ No newline at end of file
diff --git a/conversations/conv_020801.json b/conversations/conv_020801.json
deleted file mode 100644
index 919ee7a5dc1a0515c4a75da0c8bb2dfe959440f5..0000000000000000000000000000000000000000
--- a/conversations/conv_020801.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.208215132896671,
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-      "overlap": false,
-      "utterance_id": "2562-157263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2562-157263.flac |",
-      "real_speaker_id": "2562",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.513839050705063,
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-      "utterance_id": "448-122800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.641654075626903,
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-      "utterance_id": "951-138582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-138582.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 84119
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.8695012830256,
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-      "utterance_id": "448-122800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 88119
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.62783363331112,
-      "end_time": 32.0,
-      "duration": 5.37216636668888,
-      "start_frame": 426045,
-      "duration_frames": 85954,
-      "overlap": false,
-      "utterance_id": "2562-133442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2562-133442.flac |",
-      "real_speaker_id": "2562",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020817.json b/conversations/conv_020817.json
deleted file mode 100644
index 843eed5f7cb63841a8053b14b7a06b449fc147a4..0000000000000000000000000000000000000000
--- a/conversations/conv_020817.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99587699691117,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "166-352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-122789.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-126302.flac |",
-      "real_speaker_id": "166",
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-      "utterance_id": "6574-120583",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-120583.flac |",
-      "real_speaker_id": "6574",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-122789.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 54919
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 67440,
-      "overlap": false,
-      "utterance_id": "3925-57660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57660.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6574/laugh/0005.wav",
-      "duration": 1.24,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6574/cough/0097.wav",
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-      "start_time": 22.689805818415042,
-      "speaker_id": "6574"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020821.json b/conversations/conv_020821.json
deleted file mode 100644
index 381a672d9ccb948d5a9bbf6e3808d92031600e03..0000000000000000000000000000000000000000
--- a/conversations/conv_020821.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.979284286687133,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 4.490727913545078,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "636-128310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128310.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.037410176041111,
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-      "utterance_id": "7478-98645",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98645.flac |",
-      "real_speaker_id": "7478",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "636-123163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-123163.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98645.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "636-128331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128331.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98645.flac |",
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-      "position_frames": 147950
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "cough",
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-      "duration": 1.36,
-      "start_time": 15.282585295125655,
-      "speaker_id": "7478"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020837.json b/conversations/conv_020837.json
deleted file mode 100644
index c44597dd7cf27a7dd21636f028444dd92304220b..0000000000000000000000000000000000000000
--- a/conversations/conv_020837.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_020840.json b/conversations/conv_020840.json
deleted file mode 100644
index 818ed8af9ad7abded5456b73cd7cf4510f906d6d..0000000000000000000000000000000000000000
--- a/conversations/conv_020840.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_020841.json b/conversations/conv_020841.json
deleted file mode 100644
index 7531ca6e32c2ccb3c3a0d63f9b1d1452697f19b8..0000000000000000000000000000000000000000
--- a/conversations/conv_020841.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_020851.json b/conversations/conv_020851.json
deleted file mode 100644
index 739423c84aab9d30a59cbe7428016ed668c22f30..0000000000000000000000000000000000000000
--- a/conversations/conv_020851.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "337",
-      "position_frames": 78162
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/337/laugh/0112.wav",
-      "duration": 0.5730697686533729,
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-      "speaker_id": "337"
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-    {
-      "event_class": "cough",
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-      "duration": 0.6447963598756221,
-      "start_time": 7.817106258728667,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4703/laugh/0009.wav",
-      "duration": 1.16,
-      "start_time": 17.380271400005324,
-      "speaker_id": "4703"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020856.json b/conversations/conv_020856.json
deleted file mode 100644
index 8c400924b95329c51c470ae26403abc95e6cc5d8..0000000000000000000000000000000000000000
--- a/conversations/conv_020856.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.5213451529319295,
-      "duration": 4.5213451529319295,
-      "start_frame": 0,
-      "duration_frames": 72341,
-      "overlap": false,
-      "utterance_id": "3490-177627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177627.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.837748233711012,
-      "end_time": 8.19912076717615,
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-      "overlap": false,
-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.633862323514707,
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-      "duration": 4.437994463818312,
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-      "duration_frames": 71007,
-      "overlap": true,
-      "utterance_id": "3490-177641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177641.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.667243082604795,
-      "end_time": 17.199254322837422,
-      "duration": 3.5320112402326282,
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-      "duration_frames": 56512,
-      "overlap": false,
-      "utterance_id": "6181-216552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.387026638449576,
-      "end_time": 24.0335818596514,
-      "duration": 5.646555221201821,
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-      "duration_frames": 90344,
-      "overlap": false,
-      "utterance_id": "3490-177638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177638.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.389990263874783,
-      "end_time": 29.5109020335642,
-      "duration": 5.120911769689419,
-      "start_frame": 390239,
-      "duration_frames": 81934,
-      "overlap": false,
-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 53781
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.446375722952567,
-      "end_time": 32.0,
-      "duration": 1.553624277047433,
-      "start_frame": 487142,
-      "duration_frames": 24857,
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-      "utterance_id": "6181-216552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 56512
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
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-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7481/cough/0051.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7481/laugh/0024.wav",
-      "duration": 1.24,
-      "start_time": 25.171182292642257,
-      "speaker_id": "7481"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020860.json b/conversations/conv_020860.json
deleted file mode 100644
index 68aefa512983caa455845a6fed9ba702727cee9e..0000000000000000000000000000000000000000
--- a/conversations/conv_020860.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1241-121103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1241-121103.flac |",
-      "real_speaker_id": "1241",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.840229308058839,
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-      "utterance_id": "211-122425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122425.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.64704400675682,
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-      "overlap": false,
-      "utterance_id": "8897-294721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8897-294721.flac |",
-      "real_speaker_id": "8897",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.76838564467814,
-      "end_time": 23.34666738427571,
-      "duration": 3.5782817395975717,
-      "start_frame": 316294,
-      "duration_frames": 57252,
-      "overlap": false,
-      "utterance_id": "1241-121103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1241-121103.flac |",
-      "real_speaker_id": "1241",
-      "position_frames": 102502
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.77586001124471,
-      "end_time": 27.43839366087613,
-      "duration": 4.662533649631422,
-      "start_frame": 364413,
-      "duration_frames": 74600,
-      "overlap": true,
-      "utterance_id": "211-122442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122442.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.578457772124857,
-      "end_time": 32.0,
-      "duration": 3.4215422278751433,
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-      "duration_frames": 54744,
-      "overlap": false,
-      "utterance_id": "1241-137614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1241-137614.flac |",
-      "real_speaker_id": "1241",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1241/cough/0099.wav",
-      "duration": 1.1901071016572295,
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-      "speaker_id": "1241"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020876.json b/conversations/conv_020876.json
deleted file mode 100644
index 1d06463f6ffa50816e7fa8ec5df0f52689be2589..0000000000000000000000000000000000000000
--- a/conversations/conv_020876.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.848975068903327,
-      "duration": 3.848975068903327,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1335-27593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-27593.flac |",
-      "real_speaker_id": "1335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.0289556061841605,
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-      "overlap": true,
-      "utterance_id": "1335-27593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-27593.flac |",
-      "real_speaker_id": "1335",
-      "position_frames": 61583
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-    {
-      "segment_id": "seg0002",
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-      "start_frame": 135300,
-      "duration_frames": 66640,
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-      "utterance_id": "7700-92919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92919.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "overlap": true,
-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7700-92925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.18508502752398,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 81064
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 2.5191340593636085,
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-      "real_speaker_id": "7700",
-      "position_frames": 66640
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1335"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7700/laugh/0060.wav",
-      "duration": 1.24,
-      "start_time": 19.277261341389345,
-      "speaker_id": "7700"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020883.json b/conversations/conv_020883.json
deleted file mode 100644
index 67ef9d003b6f276f54852047eca194b103bf63ff..0000000000000000000000000000000000000000
--- a/conversations/conv_020883.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6555082736785955,
-      "duration": 3.6555082736785955,
-      "start_frame": 0,
-      "duration_frames": 58488,
-      "overlap": false,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.451134640321858,
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-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 58488
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020884.json b/conversations/conv_020884.json
deleted file mode 100644
index 6fc6bbb4f4bc0be279745e42ba8b0cac0fc56b33..0000000000000000000000000000000000000000
--- a/conversations/conv_020884.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4193-48173.flac |",
-      "real_speaker_id": "4193",
-      "position_frames": 0
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-      "real_speaker_id": "4193",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
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-      "position_frames": 109890
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.657021590570647,
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-      "utterance_id": "4193-48170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4193-48170.flac |",
-      "real_speaker_id": "4193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.55862584865565,
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-      "duration": 5.441374151344348,
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-      "utterance_id": "4193-48173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4193-48173.flac |",
-      "real_speaker_id": "4193",
-      "position_frames": 63640
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/232915.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020892.json b/conversations/conv_020892.json
deleted file mode 100644
index 5655ebc8cf4f055d37324d34e9147bef4c8840f6..0000000000000000000000000000000000000000
--- a/conversations/conv_020892.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5013-31099.flac |",
-      "real_speaker_id": "5013",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5013-31101.flac |",
-      "real_speaker_id": "5013",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
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-      "position_frames": 101948
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 74242
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-      "duration": 0.96,
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-      "speaker_id": "839"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020895.json b/conversations/conv_020895.json
deleted file mode 100644
index 5da3604ae8743832363fdcd6251189b5a1291517..0000000000000000000000000000000000000000
--- a/conversations/conv_020895.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.558972399439507,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-36587.flac |",
-      "real_speaker_id": "5325",
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-      "position_frames": 99753
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "5325",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.628979658563967,
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-      "duration": 0.3710203414360329,
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-  "background_events": [
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-    {
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-      "speaker_id": "3180"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020899.json b/conversations/conv_020899.json
deleted file mode 100644
index 441ed515bb9a2017d04ba32d9bc93664a1dc10ba..0000000000000000000000000000000000000000
--- a/conversations/conv_020899.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-13248.flac |",
-      "real_speaker_id": "3389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5746",
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-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.026736438626205,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-130127.flac |",
-      "real_speaker_id": "3389",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 31.395618745902308,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 77588
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3389/cough/0146.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3258/laugh/0081.wav",
-      "duration": 0.8147257480065878,
-      "start_time": 31.185274251993413,
-      "speaker_id": "3258"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020904.json b/conversations/conv_020904.json
deleted file mode 100644
index a21a93d5c4075b3f89dbfb15a52146f728e67ff6..0000000000000000000000000000000000000000
--- a/conversations/conv_020904.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.369971952007238,
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-      "start_frame": 0,
-      "duration_frames": 85919,
-      "overlap": false,
-      "utterance_id": "3699-19402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-19402.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.1275042085305085,
-      "end_time": 11.242560724186546,
-      "duration": 5.115056515656038,
-      "start_frame": 98040,
-      "duration_frames": 81840,
-      "overlap": false,
-      "utterance_id": "3699-47246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-47246.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.472005950497682,
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-      "duration_frames": 61971,
-      "overlap": false,
-      "utterance_id": "637-127597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127597.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 15.834328509224306,
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-      "overlap": false,
-      "utterance_id": "637-127595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.20150490687192,
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-      "overlap": false,
-      "utterance_id": "637-127579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127579.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.103656115131052,
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-      "duration": 4.896343884868948,
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-      "duration_frames": 78341,
-      "overlap": false,
-      "utterance_id": "637-127595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 91004
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
-      "duration": 19.061179138321997,
-      "start_time": 9.154492594917684
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-      "duration": 1.283469173583578,
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-      "event_class": "Dog",
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-      "duration": 3.073673469387755,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 10.43688847255812,
-      "speaker_id": "637"
-    },
-    {
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-      "speaker_id": "637"
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-    {
-      "event_class": "cough",
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-      "duration": 0.6496361724856641,
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-      "speaker_id": "637"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/637/laugh/0011.wav",
-      "duration": 1.0518708851947736,
-      "start_time": 25.109395385087076,
-      "speaker_id": "637"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020905.json b/conversations/conv_020905.json
deleted file mode 100644
index a91e7108b7820f08e43372f506ebb598fe79d1fc..0000000000000000000000000000000000000000
--- a/conversations/conv_020905.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.995485687031432,
-      "duration": 3.995485687031432,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "927-132466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132466.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.750666878269873,
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-      "overlap": false,
-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.738009603334834,
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-      "overlap": false,
-      "utterance_id": "1492-55449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-55449.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.419769197806296,
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-      "duration_frames": 62138,
-      "overlap": true,
-      "utterance_id": "2930-163437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163437.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.95699958377705,
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-      "utterance_id": "1492-55449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-55449.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 58885
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.934344190673215,
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-      "overlap": false,
-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 104726
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.44405121098917,
-      "end_time": 32.0,
-      "duration": 0.5559487890108308,
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-      "overlap": false,
-      "utterance_id": "1492-11251",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-11251.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/cough/0058.wav",
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-      "start_time": 19.32799811665558,
-      "speaker_id": "2930"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1492/laugh/0029.wav",
-      "duration": 0.8136391537145722,
-      "start_time": 19.078806374826012,
-      "speaker_id": "1492"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1492/laugh/0040.wav",
-      "duration": 1.32,
-      "start_time": 29.887714960544997,
-      "speaker_id": "1492"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020909.json b/conversations/conv_020909.json
deleted file mode 100644
index f7f0b32abe67c13957ee72bd1ec9763834d9483b..0000000000000000000000000000000000000000
--- a/conversations/conv_020909.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.972071149501232,
-      "duration": 4.972071149501232,
-      "start_frame": 0,
-      "duration_frames": 79553,
-      "overlap": false,
-      "utterance_id": "7994-258959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258959.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 0
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-      "utterance_id": "7994-258960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258960.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "duration_frames": 79081,
-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 74783
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.098322055551023,
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-      "utterance_id": "3783-176659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3783-176659.flac |",
-      "real_speaker_id": "3783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.535452884660003,
-      "end_time": 32.0,
-      "duration": 4.464547115339997,
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-      "duration_frames": 71432,
-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 153864
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
-      "duration": 1.409762937059572,
-      "start_time": 9.454263540182206
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7994/laugh/0023.wav",
-      "duration": 0.82126245040362,
-      "start_time": 1.677444320997844,
-      "speaker_id": "7994"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2774/cough/0115.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "2774"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020913.json b/conversations/conv_020913.json
deleted file mode 100644
index b35c590a716b54ed96840faad6ba9e9d1000f50d..0000000000000000000000000000000000000000
--- a/conversations/conv_020913.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.388338095329175,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.638427403830107,
-      "duration": 5.638427403830107,
-      "start_frame": 0,
-      "duration_frames": 90214,
-      "overlap": false,
-      "utterance_id": "5588-39648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138109.flac |",
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-      "real_speaker_id": "6000",
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-      "utterance_id": "6000-55211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-55211.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
-      "duration": 14.690997732426304,
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-  "paralinguistic_events": [
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-      "duration": 0.92,
-      "start_time": 2.3162265774236483,
-      "speaker_id": "5588"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1291/laugh/0136.wav",
-      "duration": 0.7701718694085207,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5588/laugh/0055.wav",
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-      "start_time": 10.597234302737437,
-      "speaker_id": "5588"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6000/laugh/0060.wav",
-      "duration": 1.64,
-      "start_time": 20.277994503153028,
-      "speaker_id": "6000"
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-      "event_class": "cough",
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-      "start_time": 28.03467120288897,
-      "speaker_id": "6000"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020914.json b/conversations/conv_020914.json
deleted file mode 100644
index ec04812594bf0b9a2fe5848b129fd4f4cae2bdcc..0000000000000000000000000000000000000000
--- a/conversations/conv_020914.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.538600988294288,
-      "duration": 6.538600988294288,
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-      "duration_frames": 104617,
-      "overlap": false,
-      "utterance_id": "3972-185074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3972-185074.flac |",
-      "real_speaker_id": "3972",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.725743169263603,
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-      "utterance_id": "7085-2327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-2327.flac |",
-      "real_speaker_id": "7085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.797134437687955,
-      "end_time": 16.99368309725085,
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-      "overlap": false,
-      "utterance_id": "8396-120281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120281.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.154610750029757,
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-      "utterance_id": "3972-5791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3972-5791.flac |",
-      "real_speaker_id": "3972",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.420379665482216,
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-      "overlap": true,
-      "utterance_id": "8396-120282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120282.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.75657896458303,
-      "end_time": 32.0,
-      "duration": 2.2434210354169686,
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-      "duration_frames": 35894,
-      "overlap": false,
-      "utterance_id": "8396-120277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120277.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3972/laugh/0093.wav",
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-    {
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-      "duration": 1.0946762736999023,
-      "start_time": 0,
-      "speaker_id": "3972"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.5268875170882859,
-      "start_time": 6.013251456822165,
-      "speaker_id": "7085"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 23.251757046134134,
-      "speaker_id": "3972"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020925.json b/conversations/conv_020925.json
deleted file mode 100644
index 4d45dc4236c54d6726d3cc799a1269ae663ade17..0000000000000000000000000000000000000000
--- a/conversations/conv_020925.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.595051274865347,
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-      "start_frame": 0,
-      "duration_frames": 73520,
-      "overlap": false,
-      "utterance_id": "7538-100045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.970289616402093,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59239.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "100-121674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121674.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6037-59234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59234.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.388484047570966,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 73520
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6037-59239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59239.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 87901
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "100-122655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-122655.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
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-      "start_time": 13.562867256414444,
-      "speaker_id": "6037"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6037/laugh/0033.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/cough/0043.wav",
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-      "start_time": 31.216508170111105,
-      "speaker_id": "100"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020929.json b/conversations/conv_020929.json
deleted file mode 100644
index 68a0908c82eeec603f171cd2a12305894800e6cc..0000000000000000000000000000000000000000
--- a/conversations/conv_020929.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "8226-274371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274371.flac |",
-      "real_speaker_id": "8226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.782570792024,
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-      "utterance_id": "2491-134787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
-      "real_speaker_id": "2491",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274369.flac |",
-      "real_speaker_id": "8226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "2491",
-      "position_frames": 68782
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/75-854.flac |",
-      "real_speaker_id": "75",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274369.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020933.json b/conversations/conv_020933.json
deleted file mode 100644
index 9ef5d1b8d1c25505ddff1040507d283580df882a..0000000000000000000000000000000000000000
--- a/conversations/conv_020933.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-291170.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-283400.flac |",
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_020938.json b/conversations/conv_020938.json
deleted file mode 100644
index d7a110b0af9ab40c639825f3c661aebdeff633fe..0000000000000000000000000000000000000000
--- a/conversations/conv_020938.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.206256719478866,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132307.flac |",
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-      "real_speaker_id": "4592",
-      "position_frames": 62397
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_020944.json b/conversations/conv_020944.json
deleted file mode 100644
index 29e3c7d27173e52d9d5132d970fb1954aa02a763..0000000000000000000000000000000000000000
--- a/conversations/conv_020944.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.445910799890104,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020948.json b/conversations/conv_020948.json
deleted file mode 100644
index 3e14193c96e0e47d916685914196c25da4b4eb61..0000000000000000000000000000000000000000
--- a/conversations/conv_020948.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.66814032208261,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8050-110238.flac |",
-      "real_speaker_id": "8050",
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-      "segment_id": "seg0003",
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-      "start_time": 16.119053323156727,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-27593.flac |",
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-      "utterance_id": "1335-160602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-160602.flac |",
-      "real_speaker_id": "1335",
-      "position_frames": 85046
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 2.3516372462274284,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1335/laugh/0078.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_020952.json b/conversations/conv_020952.json
deleted file mode 100644
index 68c00cf876cea1df342d6bf5f16fe96ea14c938b..0000000000000000000000000000000000000000
--- a/conversations/conv_020952.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "483-125116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125116.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.570223907523454,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80654.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 8.955820067758255,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125126.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.778175986701502,
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-      "overlap": false,
-      "utterance_id": "2911-15084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15084.flac |",
-      "real_speaker_id": "2911",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.51252970694288,
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-      "utterance_id": "483-125116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125116.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 73392
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125116.flac |",
-      "real_speaker_id": "483",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_020964.json b/conversations/conv_020964.json
deleted file mode 100644
index c27bc90d48e307bd3e409592bc698672ffce6c9b..0000000000000000000000000000000000000000
--- a/conversations/conv_020964.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "7299-88365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7299-88365.flac |",
-      "real_speaker_id": "7299",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "666-11244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
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-      "utterance_id": "5126-34483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-34483.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "666-11243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11243.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "5126",
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-    {
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-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_020968.json b/conversations/conv_020968.json
deleted file mode 100644
index 39cf685618df3bdd28fbf4de07d853ff4e636c58..0000000000000000000000000000000000000000
--- a/conversations/conv_020968.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.502841623420665,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 143535
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-    {
-      "segment_id": "seg0005",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_020972.json b/conversations/conv_020972.json
deleted file mode 100644
index 816f2cde21c66ccfdda734c7a22d91b8ed1316b6..0000000000000000000000000000000000000000
--- a/conversations/conv_020972.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "3440-171006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 126848
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.0958376020294587,
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-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "event_class": "laugh",
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-      "speaker_id": "340"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020979.json b/conversations/conv_020979.json
deleted file mode 100644
index 4b927787c19ad2a72336d175716693b9574e8bdd..0000000000000000000000000000000000000000
--- a/conversations/conv_020979.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1696-142314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
-      "real_speaker_id": "1696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.246333915320406,
-      "end_time": 12.090441987819457,
-      "duration": 6.844108072499051,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4054-11077.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "1696-142314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
-      "real_speaker_id": "1696",
-      "position_frames": 81222
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4054-11077.flac |",
-      "real_speaker_id": "4054",
-      "position_frames": 109505
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration_frames": 97508,
-      "overlap": false,
-      "utterance_id": "1696-142314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
-      "real_speaker_id": "1696",
-      "position_frames": 160462
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.50469666982577,
-      "end_time": 32.0,
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-      "start_frame": 488075,
-      "duration_frames": 23924,
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-      "utterance_id": "4054-11077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4054-11077.flac |",
-      "real_speaker_id": "4054",
-      "position_frames": 188404
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
-      "duration": 0.6518367346938776,
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.06,
-      "start_time": 20.476105822796395,
-      "speaker_id": "4054"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020980.json b/conversations/conv_020980.json
deleted file mode 100644
index 9f7f139005403eb75186779adabd795dde1a9ce7..0000000000000000000000000000000000000000
--- a/conversations/conv_020980.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7720-105168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105168.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.806327456093791,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-26870.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4654.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 23.56960160390893,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105168.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 62970
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-    {
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-      "duration": 1.7939277054512672,
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-      "overlap": false,
-      "utterance_id": "2598-4654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4654.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 98396
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4859/laugh/0045.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.98,
-      "start_time": 15.429907867065872,
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 30.507281084135563,
-      "speaker_id": "2598"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020987.json b/conversations/conv_020987.json
deleted file mode 100644
index ec26fbc3f00fbb7e1d82474697c5d391fbfedab5..0000000000000000000000000000000000000000
--- a/conversations/conv_020987.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3100-142810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3100-142810.flac |",
-      "real_speaker_id": "3100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
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-      "utterance_id": "7754-105383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-105383.flac |",
-      "real_speaker_id": "7754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.908348227900362,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 78105
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.287856029093014,
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-      "utterance_id": "3100-142810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3100-142810.flac |",
-      "real_speaker_id": "3100",
-      "position_frames": 71452
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 0.6847707790837063,
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-      "utterance_id": "5389-41911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-41911.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5389/cough/0053.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5389/laugh/0004.wav",
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-      "start_time": 30.607120380493324,
-      "speaker_id": "5389"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_020991.json b/conversations/conv_020991.json
deleted file mode 100644
index df45cfef774f1459c3c7bb01cd2a0a4028fa6cb6..0000000000000000000000000000000000000000
--- a/conversations/conv_020991.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 64707
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_020996.json b/conversations/conv_020996.json
deleted file mode 100644
index 666a010661f04d177bea42f637aaa1b3c0535f5c..0000000000000000000000000000000000000000
--- a/conversations/conv_020996.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1046-133224.flac |",
-      "real_speaker_id": "1046",
-      "position_frames": 0
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-      "real_speaker_id": "7199",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_021000.json b/conversations/conv_021000.json
deleted file mode 100644
index 30ed80dec0d658034b8b682216b306b1afddef7d..0000000000000000000000000000000000000000
--- a/conversations/conv_021000.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5325",
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-      "position_frames": 73651
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 37322,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-26848.flac |",
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-      "position_frames": 87674
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021007.json b/conversations/conv_021007.json
deleted file mode 100644
index 89314fc38637c768fb07a289792e646e0223cff2..0000000000000000000000000000000000000000
--- a/conversations/conv_021007.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.709985649900723,
-  "num_speakers": 3,
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-      "utterance_id": "830-130728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130728.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "830-130727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130727.flac |",
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-    {
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-      "duration": 1.04,
-      "start_time": 16.608726575706136,
-      "speaker_id": "5778"
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-      "event_class": "laugh",
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-      "duration": 1.2508658264982784,
-      "start_time": 22.7394935654127,
-      "speaker_id": "5778"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021011.json b/conversations/conv_021011.json
deleted file mode 100644
index 6350922a7c9d5bc634d5469f596728ecfe74de01..0000000000000000000000000000000000000000
--- a/conversations/conv_021011.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.905286886585198,
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-      "overlap": false,
-      "utterance_id": "8625-268295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-268295.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.596971100373943,
-      "end_time": 7.945719303269345,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127195.flac |",
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-      "position_frames": 0
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-      "utterance_id": "3094-136458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
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-      "speaker_id": 0,
-      "start_time": 12.939264195171736,
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-      "utterance_id": "8625-295957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-295957.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.83614058518798,
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-      "utterance_id": "766-127193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127193.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.811972033057792,
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-      "duration": 4.0093598952476395,
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-      "utterance_id": "3094-136458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 58473
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.957627643212348,
-      "end_time": 32.0,
-      "duration": 3.042372356787652,
-      "start_frame": 463322,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-295957.flac |",
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-      "position_frames": 62838
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "8625"
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\ No newline at end of file
diff --git a/conversations/conv_021016.json b/conversations/conv_021016.json
deleted file mode 100644
index 426eb35120e43b2478874b27f12cea875418046e..0000000000000000000000000000000000000000
--- a/conversations/conv_021016.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.30780062395681,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "6233-36633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-36633.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "5355",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-36633.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 88391
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-36633.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 198276
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.531001555610324,
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-      "utterance_id": "5588-39648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Dishes",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021027.json b/conversations/conv_021027.json
deleted file mode 100644
index 251c9ae6e19e9e7ece4ae26e311eda8e23bc9548..0000000000000000000000000000000000000000
--- a/conversations/conv_021027.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5379-44344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-44344.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-15784.flac |",
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-      "position_frames": 105096
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "5248-34499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34499.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5379/laugh/0005.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021031.json b/conversations/conv_021031.json
deleted file mode 100644
index 8334d1bec028ee956fc38dc32fb3e7dcb6fc2615..0000000000000000000000000000000000000000
--- a/conversations/conv_021031.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "real_speaker_id": "7073",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
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-    {
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.01982564559772,
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7783/laugh/0095.wav",
-      "duration": 1.02,
-      "start_time": 16.404768618472247,
-      "speaker_id": "7783"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021041.json b/conversations/conv_021041.json
deleted file mode 100644
index 128866042805ffdeb61dabb3b2996b7b464cf926..0000000000000000000000000000000000000000
--- a/conversations/conv_021041.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.833140863838494,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6733-59185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6733-59185.flac |",
-      "real_speaker_id": "6733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.293622944980256,
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-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.576041343647278,
-      "end_time": 15.338115159812642,
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-      "overlap": false,
-      "utterance_id": "2499-156155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156155.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.323702983104532,
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-      "utterance_id": "2013-147610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147610.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.863951438106664,
-      "end_time": 25.47192203807496,
-      "duration": 4.607970599968296,
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-      "duration_frames": 73727,
-      "overlap": true,
-      "utterance_id": "6733-97084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6733-97084.flac |",
-      "real_speaker_id": "6733",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.10323051849171,
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-      "duration": 3.729910345346783,
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-      "utterance_id": "2499-156155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156155.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 92193
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_5.wav",
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-      "event_class": "cough",
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-      "speaker_id": "2013"
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-}
\ No newline at end of file
diff --git a/conversations/conv_021046.json b/conversations/conv_021046.json
deleted file mode 100644
index 2dbeeb2ac212b06f881118db131e33a6e059fc18..0000000000000000000000000000000000000000
--- a/conversations/conv_021046.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5293-82020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5293-82020.flac |",
-      "real_speaker_id": "5293",
-      "position_frames": 0
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-      "utterance_id": "978-125137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-125137.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130728.flac |",
-      "real_speaker_id": "830",
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-      "speaker_id": 2,
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-      "utterance_id": "978-132494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-132494.flac |",
-      "real_speaker_id": "978",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.870524075899134,
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-      "overlap": false,
-      "utterance_id": "830-130727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130727.flac |",
-      "real_speaker_id": "830",
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "5293-82020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5293-82020.flac |",
-      "real_speaker_id": "5293",
-      "position_frames": 82911
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-      "event_class": "Dishes",
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-      "speaker_id": "978"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021050.json b/conversations/conv_021050.json
deleted file mode 100644
index f3f23c507b74219204273ede8230ed677642cb5c..0000000000000000000000000000000000000000
--- a/conversations/conv_021050.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6206-14960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14960.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6098-57837.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14958.flac |",
-      "real_speaker_id": "6206",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14960.flac |",
-      "real_speaker_id": "6206",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "5561",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6206-14958.flac |",
-      "real_speaker_id": "6206",
-      "position_frames": 78648
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.58678507592217,
-      "end_time": 32.0,
-      "duration": 0.4132149240778311,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6098-57836.flac |",
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-    {
-      "event_class": "laugh",
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-      "start_time": 30.64,
-      "speaker_id": "6098"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021057.json b/conversations/conv_021057.json
deleted file mode 100644
index 7701d6102f90b62b9c81134c86e72c4803652d00..0000000000000000000000000000000000000000
--- a/conversations/conv_021057.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.459131066533104,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2279-141140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2279-141140.flac |",
-      "real_speaker_id": "2279",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2279-141140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2279-141140.flac |",
-      "real_speaker_id": "2279",
-      "position_frames": 79836
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7746/cough/0015.wav",
-      "duration": 1.0,
-      "start_time": 8.467573524720176,
-      "speaker_id": "7746"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7746/cough/0070.wav",
-      "duration": 1.058149810345317,
-      "start_time": 20.083907803505134,
-      "speaker_id": "7746"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7746/laugh/0045.wav",
-      "duration": 1.4,
-      "start_time": 25.3829657113847,
-      "speaker_id": "7746"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021066.json b/conversations/conv_021066.json
deleted file mode 100644
index 58af210adf913107b98ddb0dab852951b30d25a6..0000000000000000000000000000000000000000
--- a/conversations/conv_021066.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.5479268015453647,
-      "end_time": 9.674085118778946,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305212.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.817755315566444,
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-      "duration": 5.26144323728894,
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-      "overlap": false,
-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 51796
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8630-305212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305212.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 98018
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.939231584964183,
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-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 135979
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.080548307355627,
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-      "overlap": false,
-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 240457
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.59226193920645,
-      "end_time": 32.0,
-      "duration": 0.4077380607935517,
-      "start_frame": 505476,
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-      "utterance_id": "8630-305213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305213.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1809/laugh/0068.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021070.json b/conversations/conv_021070.json
deleted file mode 100644
index 9641c8225a440919a88fe6a7442395034bec90ac..0000000000000000000000000000000000000000
--- a/conversations/conv_021070.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.13496538077134,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6492-68369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68369.flac |",
-      "real_speaker_id": "6492",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.424755954755277,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-109656.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68369.flac |",
-      "real_speaker_id": "6492",
-      "position_frames": 61074
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281317.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.289995968870546,
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-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.671761569337576,
-      "end_time": 31.13496538077134,
-      "duration": 5.4632038114337655,
-      "start_frame": 410748,
-      "duration_frames": 87411,
-      "overlap": false,
-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 63337
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.22,
-      "start_time": 19.86050381252872,
-      "speaker_id": "7688"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7688/laugh/0000.wav",
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-    {
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-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "7688"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021085.json b/conversations/conv_021085.json
deleted file mode 100644
index 1554c807309f7c973a4236d423209bc1f015f5b8..0000000000000000000000000000000000000000
--- a/conversations/conv_021085.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.558243265640943,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2407-7664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7664.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-289453.flac |",
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-      "real_speaker_id": "2407",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.227712589988318,
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-      "real_speaker_id": "559",
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-    {
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-      "real_speaker_id": "559",
-      "position_frames": 133966
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2407-7664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7664.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 76964
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
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-      "start_time": 21.338460034234647,
-      "speaker_id": "559"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021089.json b/conversations/conv_021089.json
deleted file mode 100644
index 23438d3fa49f104fcb7601a43cbabadd423dabbc..0000000000000000000000000000000000000000
--- a/conversations/conv_021089.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.91922182969695,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "557",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4856-20410.flac |",
-      "real_speaker_id": "4856",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129796.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 61276
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.50207410281734,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4856-20410.flac |",
-      "real_speaker_id": "4856",
-      "position_frames": 101768
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/557/laugh/0109.wav",
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-      "speaker_id": "557"
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-}
\ No newline at end of file
diff --git a/conversations/conv_021092.json b/conversations/conv_021092.json
deleted file mode 100644
index e3523fb0fa4549bbbe9486a01d75a2d48fa85d4e..0000000000000000000000000000000000000000
--- a/conversations/conv_021092.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.08491458274026,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/405-130895.flac |",
-      "real_speaker_id": "405",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.570358825521774,
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-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/405-130895.flac |",
-      "real_speaker_id": "405",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/405-130895.flac |",
-      "real_speaker_id": "405",
-      "position_frames": 116858
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_021093.json b/conversations/conv_021093.json
deleted file mode 100644
index 5d35e71f46cc0e4931ac8d205b6d6b0be5a94b00..0000000000000000000000000000000000000000
--- a/conversations/conv_021093.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-275164.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-53256.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1195-130164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-130164.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "7348",
-      "position_frames": 0
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-    {
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-      "utterance_id": "1195-37134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-37134.flac |",
-      "real_speaker_id": "1195",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_021103.json b/conversations/conv_021103.json
deleted file mode 100644
index 7a186e07745775d9991ec3eb79677708b58eb78d..0000000000000000000000000000000000000000
--- a/conversations/conv_021103.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3465-20044.flac |",
-      "real_speaker_id": "3465",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3465-20021.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3465-275761.flac |",
-      "real_speaker_id": "3465",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.965164090070877,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3465",
-      "position_frames": 79134
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1800-142858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 74857
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_021104.json b/conversations/conv_021104.json
deleted file mode 100644
index 0b442341a492cf60eb47cf8bdbafa8ad5be0bbf9..0000000000000000000000000000000000000000
--- a/conversations/conv_021104.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.194043618723555,
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-      "utterance_id": "4331-57179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-57179.flac |",
-      "real_speaker_id": "4331",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 105945
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "4331-57180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-57180.flac |",
-      "real_speaker_id": "4331",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 0.7275850770298482,
-      "start_time": 20.645682817795173,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7326/laugh/0101.wav",
-      "duration": 1.16,
-      "start_time": 21.744767945043645,
-      "speaker_id": "7326"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021112.json b/conversations/conv_021112.json
deleted file mode 100644
index 2806a4e3f5949c6dcbd57a68a39466aab0e90963..0000000000000000000000000000000000000000
--- a/conversations/conv_021112.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.664384869365612,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.664714051665641,
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-      "overlap": false,
-      "utterance_id": "6895-92806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92806.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.3933355311850715,
-      "end_time": 12.077217524975094,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-132655.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.713315494793413,
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-      "overlap": false,
-      "utterance_id": "150-126107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.713947548467594,
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-      "duration_frames": 103155,
-      "overlap": false,
-      "utterance_id": "150-126107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 71649
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.16618847728546,
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-      "overlap": false,
-      "utterance_id": "6339-65534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.147921442172816,
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-      "duration": 0.5164634271927966,
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-      "duration_frames": 8263,
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-      "utterance_id": "6895-92805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92805.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-      "event_class": "cough",
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-      "duration": 1.0,
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-      "event_class": "laugh",
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-      "speaker_id": "6895"
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-}
\ No newline at end of file
diff --git a/conversations/conv_021115.json b/conversations/conv_021115.json
deleted file mode 100644
index 438b17e145adc2fa169eaddc71144587e012a1e7..0000000000000000000000000000000000000000
--- a/conversations/conv_021115.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.01358364235111,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "23-124439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
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-      "start_time": 7.299006278455075,
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-      "segment_id": "seg0002",
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-      "utterance_id": "250-142286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142286.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.2688337403737,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
-      "position_frames": 106006
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.673488686860384,
-      "end_time": 25.113631209752462,
-      "duration": 3.440142522892077,
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-      "utterance_id": "2581-157858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-157858.flac |",
-      "real_speaker_id": "2581",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "250-140277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-140277.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.08,
-      "start_time": 21.82665625929641,
-      "speaker_id": "23"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021119.json b/conversations/conv_021119.json
deleted file mode 100644
index ba0e595a425bab7c702ca24cdb58f6b1618c5648..0000000000000000000000000000000000000000
--- a/conversations/conv_021119.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7766-109658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-109658.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.216278419194391,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.751373662859509,
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-      "overlap": true,
-      "utterance_id": "7766-109658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-109658.flac |",
-      "real_speaker_id": "7766",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "utterance_id": "7766-275147",
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-      "real_speaker_id": "7766",
-      "position_frames": 0
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-    {
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021123.json b/conversations/conv_021123.json
deleted file mode 100644
index a5d2ae27dbb8411770fad12888cebd65f8c563b7..0000000000000000000000000000000000000000
--- a/conversations/conv_021123.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 30.656287182426748,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "6006-57831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
-      "real_speaker_id": "1696",
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-      "segment_id": "seg0005",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
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-  "foreground_events": [
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-      "duration": 1.12,
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-}
\ No newline at end of file
diff --git a/conversations/conv_021135.json b/conversations/conv_021135.json
deleted file mode 100644
index 1cad91d33892f8dae7e0dee95a117d8a92291f0e..0000000000000000000000000000000000000000
--- a/conversations/conv_021135.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74242.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 7.766609358918824,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74243.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
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-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.26894620638721,
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-      "duration_frames": 80826,
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-      "utterance_id": "7242-275168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275168.flac |",
-      "real_speaker_id": "7242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.076519112315236,
-      "end_time": 32.0,
-      "duration": 4.923480887684764,
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-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 95826
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021138.json b/conversations/conv_021138.json
deleted file mode 100644
index 21c70a8c5008e5b01cb863b26c7a17baedac4381..0000000000000000000000000000000000000000
--- a/conversations/conv_021138.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "6446-57416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6346-60784.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40571.flac |",
-      "real_speaker_id": "6446",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6346",
-      "position_frames": 0
-    },
-    {
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-      "duration": 0.7676610473347054,
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-      "duration_frames": 12282,
-      "overlap": false,
-      "utterance_id": "6446-57416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 174008
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-      "duration": 1.18,
-      "start_time": 30.82,
-      "speaker_id": "6446"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021139.json b/conversations/conv_021139.json
deleted file mode 100644
index d2bbc9820b2860b4f2d57727d43062aa8fe6112e..0000000000000000000000000000000000000000
--- a/conversations/conv_021139.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.180471947680009,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.718203967930582,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.093858568467496,
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-      "utterance_id": "7553-101278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.396681539388236,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
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-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 0,
-      "speaker_id": "1001"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/679/laugh/0017.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7553/laugh/0059.wav",
-      "duration": 1.08,
-      "start_time": 9.796618577232588,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/laugh/0025.wav",
-      "duration": 1.52,
-      "start_time": 17.841876530049603,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/679/laugh/0028.wav",
-      "duration": 1.4,
-      "start_time": 20.12668599256753,
-      "speaker_id": "679"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021142.json b/conversations/conv_021142.json
deleted file mode 100644
index 871199baf4448ad7fd4f6f6f87a020ac9e010cba..0000000000000000000000000000000000000000
--- a/conversations/conv_021142.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4277-185517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185517.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51654.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.2577454182778,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88484.flac |",
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-  "foreground_events": [
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-      "speaker_id": "7095"
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-}
\ No newline at end of file
diff --git a/conversations/conv_021145.json b/conversations/conv_021145.json
deleted file mode 100644
index 71501d0b199a8a5a6d4c792049219b8f753e2c32..0000000000000000000000000000000000000000
--- a/conversations/conv_021145.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.447594712227371,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-126663.flac |",
-      "real_speaker_id": "366",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-129285.flac |",
-      "real_speaker_id": "366",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275149.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-129285.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 48396
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 60207
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.380373472468953,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-126663.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_021153.json b/conversations/conv_021153.json
deleted file mode 100644
index 025d6c0f5b8eedb438ffa40e71d88251cdd351a9..0000000000000000000000000000000000000000
--- a/conversations/conv_021153.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.604757594974537,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-164461.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "5233-28389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28389.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.12066910385416,
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-      "duration": 6.26085564696554,
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-      "utterance_id": "2162-185436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-185436.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.9550725709516,
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-      "duration": 5.6496850240229355,
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-      "duration_frames": 90394,
-      "overlap": true,
-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 71982
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2162/laugh/0036.wav",
-      "duration": 1.48,
-      "start_time": 0,
-      "speaker_id": "2162"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021154.json b/conversations/conv_021154.json
deleted file mode 100644
index 31e909e2b7334e3960fb5390fa543e4fee6fc925..0000000000000000000000000000000000000000
--- a/conversations/conv_021154.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.744160069690793,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7188-82904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-82904.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.042258808336454,
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-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "7188-82904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-82904.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 70358
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.054023436052727,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.08904795611759,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 65488
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_7.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/laugh/0109.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021158.json b/conversations/conv_021158.json
deleted file mode 100644
index 658b3923ad53b4134b284bf53aba4b9262dd3fe1..0000000000000000000000000000000000000000
--- a/conversations/conv_021158.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_021162.json b/conversations/conv_021162.json
deleted file mode 100644
index ca6c862291d1e4e4de106a0019a83d34a0edd13a..0000000000000000000000000000000000000000
--- a/conversations/conv_021162.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_021163.json b/conversations/conv_021163.json
deleted file mode 100644
index d71d231628a0f92e516f7d962590a96c6ee7b60e..0000000000000000000000000000000000000000
--- a/conversations/conv_021163.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_021174.json b/conversations/conv_021174.json
deleted file mode 100644
index adcddbe6bcb272172f5ef621d29ad6db5a1a5766..0000000000000000000000000000000000000000
--- a/conversations/conv_021174.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7957/cough/0024.wav",
-      "duration": 0.8385935001280662,
-      "start_time": 30.240415017623853,
-      "speaker_id": "7957"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021178.json b/conversations/conv_021178.json
deleted file mode 100644
index a8763c986d7a6a14012c2cfce11eb7a7b77d5892..0000000000000000000000000000000000000000
--- a/conversations/conv_021178.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.166536546040343,
-      "duration": 3.166536546040343,
-      "start_frame": 0,
-      "duration_frames": 50664,
-      "overlap": false,
-      "utterance_id": "196-122152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122152.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.6936760676348115,
-      "end_time": 8.460563635858385,
-      "duration": 4.7668875682235745,
-      "start_frame": 59098,
-      "duration_frames": 76270,
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-      "utterance_id": "264-121332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.58987720704733,
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-      "utterance_id": "196-122159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122159.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.68641160892609,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
-      "position_frames": 76270
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.6173914088416,
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-      "duration": 4.699180779359167,
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-      "utterance_id": "196-122152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122152.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 50664
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.658465170346496,
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-      "utterance_id": "4955-28245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28245.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.574125134642095,
-      "end_time": 32.0,
-      "duration": 2.4258748653579048,
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-      "duration_frames": 38813,
-      "overlap": false,
-      "utterance_id": "196-122159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122159.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 99565
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 28.275995327036703,
-      "speaker_id": "196"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021180.json b/conversations/conv_021180.json
deleted file mode 100644
index 55f6f11dd415453c3877f98df8970cd060179dea..0000000000000000000000000000000000000000
--- a/conversations/conv_021180.json
+++ /dev/null
@@ -1,88 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 6.113428672226846,
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-      "utterance_id": "4090-183977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4090-183977.flac |",
-      "real_speaker_id": "4090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.436068256169676,
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-      "duration_frames": 85731,
-      "overlap": false,
-      "utterance_id": "1844-144486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.817652041330991,
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-      "utterance_id": "4090-183984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4090-183984.flac |",
-      "real_speaker_id": "4090",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.086148429323906,
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-      "utterance_id": "4090-183978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4090-183978.flac |",
-      "real_speaker_id": "4090",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.60943959291594,
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-      "utterance_id": "1844-145713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-145713.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.333078044982558,
-      "start_time": 15.253234616998322
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_021181.json b/conversations/conv_021181.json
deleted file mode 100644
index c708c49396b63a9803f1dc4e389fc805e76f0466..0000000000000000000000000000000000000000
--- a/conversations/conv_021181.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3934-102413.flac |",
-      "real_speaker_id": "3934",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 91625
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.224661057652483,
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-      "duration_frames": 67780,
-      "overlap": false,
-      "utterance_id": "6038-56777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.043338260377887,
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-      "overlap": false,
-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 179205
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 32.0,
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-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 285974
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2618/cough/0044.wav",
-      "duration": 0.7812375761747701,
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-      "speaker_id": "2618"
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021197.json b/conversations/conv_021197.json
deleted file mode 100644
index bf4d56d25fa326f04dc47801e43bb2601b94292f..0000000000000000000000000000000000000000
--- a/conversations/conv_021197.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "1246-124548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-124548.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.996741554177564,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126790.flac |",
-      "real_speaker_id": "298",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.84201254256011,
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-      "duration_frames": 74098,
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-      "utterance_id": "1246-124548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-124548.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 80071
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.811156970622502,
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-      "utterance_id": "298-126790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126790.flac |",
-      "real_speaker_id": "298",
-      "position_frames": 73244
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "1246-135815",
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-      "real_speaker_id": "1246",
-      "position_frames": 0
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-  "background_events": [
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021206.json b/conversations/conv_021206.json
deleted file mode 100644
index 125c4e4726d3fa4df2405b3f62e94269da8380e5..0000000000000000000000000000000000000000
--- a/conversations/conv_021206.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.013059858066573,
-      "duration": 6.013059858066573,
-      "start_frame": 0,
-      "duration_frames": 96208,
-      "overlap": false,
-      "utterance_id": "612-121766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.626135480903242,
-      "end_time": 12.413693724675344,
-      "duration": 5.787558243772103,
-      "start_frame": 106018,
-      "duration_frames": 92600,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.583510970858548,
-      "end_time": 15.814370959076385,
-      "duration": 3.230859988217837,
-      "start_frame": 201336,
-      "duration_frames": 51693,
-      "overlap": true,
-      "utterance_id": "4910-27683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-27683.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.84151914215635,
-      "end_time": 20.736182696608914,
-      "duration": 3.8946635544525625,
-      "start_frame": 269464,
-      "duration_frames": 62314,
-      "overlap": false,
-      "utterance_id": "4910-27683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-27683.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 51693
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.384736470475225,
-      "end_time": 26.313356448567717,
-      "duration": 4.92861997809249,
-      "start_frame": 342155,
-      "duration_frames": 78857,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 92600
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.77312742861536,
-      "end_time": 32.0,
-      "duration": 5.226872571384639,
-      "start_frame": 428370,
-      "duration_frames": 83629,
-      "overlap": false,
-      "utterance_id": "612-121760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121760.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 25.20655328798186,
-      "start_time": 0.8827156271750827
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
-      "duration": 1.991460809886203,
-      "start_time": 1.8878667253334966
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
-      "duration": 0.2502721088435374,
-      "start_time": 15.162576463499644
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4910/laugh/0002.wav",
-      "duration": 0.8984984942161396,
-      "start_time": 15.879401436079819,
-      "speaker_id": "4910"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/612/laugh/0078.wav",
-      "duration": 1.0,
-      "start_time": 29.60256597295283,
-      "speaker_id": "612"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021210.json b/conversations/conv_021210.json
deleted file mode 100644
index 6365e8ef0a8f86f0600f681c64170b0aabe31306..0000000000000000000000000000000000000000
--- a/conversations/conv_021210.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6558553431151832,
-      "duration": 3.6558553431151832,
-      "start_frame": 0,
-      "duration_frames": 58493,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.8787316186225596,
-      "end_time": 8.212043624688857,
-      "duration": 4.333312006066296,
-      "start_frame": 62059,
-      "duration_frames": 69332,
-      "overlap": true,
-      "utterance_id": "612-121766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.329937150018742,
-      "end_time": 13.878013916190426,
-      "duration": 4.548076766171684,
-      "start_frame": 149278,
-      "duration_frames": 72769,
-      "overlap": false,
-      "utterance_id": "2067-143535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.227005353094302,
-      "end_time": 19.77928794032815,
-      "duration": 5.552282587233846,
-      "start_frame": 227632,
-      "duration_frames": 88836,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 58493
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.76667771593693,
-      "end_time": 25.730996438861087,
-      "duration": 4.964318722924159,
-      "start_frame": 332266,
-      "duration_frames": 79429,
-      "overlap": false,
-      "utterance_id": "612-121760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121760.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.04529272925458,
-      "end_time": 32.0,
-      "duration": 5.95470727074542,
-      "start_frame": 416724,
-      "duration_frames": 95275,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 147329
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/807/cough/0018.wav",
-      "duration": 0.8073581070353577,
-      "start_time": 2.6330457515806693,
-      "speaker_id": "807"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021226.json b/conversations/conv_021226.json
deleted file mode 100644
index 600debf9741f509441500919710924a7af7e72ba..0000000000000000000000000000000000000000
--- a/conversations/conv_021226.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.1822170230422255,
-      "duration": 5.1822170230422255,
-      "start_frame": 0,
-      "duration_frames": 82915,
-      "overlap": false,
-      "utterance_id": "5118-111612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111612.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.749927441726503,
-      "end_time": 9.476534849682485,
-      "duration": 3.7266074079559828,
-      "start_frame": 91998,
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-      "overlap": false,
-      "utterance_id": "3796-16815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16815.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.717773207781468,
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-      "duration": 5.316500822030489,
-      "start_frame": 155484,
-      "duration_frames": 85064,
-      "overlap": false,
-      "utterance_id": "5118-40456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-40456.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.357602871515144,
-      "end_time": 20.089385273776067,
-      "duration": 4.731782402260923,
-      "start_frame": 245721,
-      "duration_frames": 75708,
-      "overlap": true,
-      "utterance_id": "3796-16816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16816.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.947191714093556,
-      "end_time": 26.917835751502682,
-      "duration": 5.970644037409126,
-      "start_frame": 335155,
-      "duration_frames": 95530,
-      "overlap": false,
-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.079160161612005,
-      "end_time": 30.593266206122404,
-      "duration": 3.5141060445103998,
-      "start_frame": 433266,
-      "duration_frames": 56225,
-      "overlap": false,
-      "utterance_id": "5118-111612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111612.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 82915
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.13628450593845,
-      "end_time": 32.0,
-      "duration": 0.8637154940615517,
-      "start_frame": 498180,
-      "duration_frames": 13819,
-      "overlap": false,
-      "utterance_id": "3796-16816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16816.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 75708
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
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-      "start_time": 23.473317931260006
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5118/laugh/0101.wav",
-      "duration": 1.4243587276843535,
-      "start_time": 30.575641272315647,
-      "speaker_id": "5118"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021230.json b/conversations/conv_021230.json
deleted file mode 100644
index 1085e8d2d5a7bbd86c51704b0305a22b6f781710..0000000000000000000000000000000000000000
--- a/conversations/conv_021230.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4912769839641706,
-      "duration": 3.4912769839641706,
-      "start_frame": 0,
-      "duration_frames": 55860,
-      "overlap": false,
-      "utterance_id": "5412-39899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.46827503782382,
-      "end_time": 9.001004597297806,
-      "duration": 4.532729559473986,
-      "start_frame": 71492,
-      "duration_frames": 72523,
-      "overlap": false,
-      "utterance_id": "5400-34478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-34478.flac |",
-      "real_speaker_id": "5400",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.269727952176769,
-      "end_time": 13.651968295937717,
-      "duration": 4.382240343760947,
-      "start_frame": 148315,
-      "duration_frames": 70115,
-      "overlap": false,
-      "utterance_id": "2182-150130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.770536356323813,
-      "end_time": 18.64454825344379,
-      "duration": 4.874011897119979,
-      "start_frame": 220328,
-      "duration_frames": 77984,
-      "overlap": false,
-      "utterance_id": "5400-3587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-3587.flac |",
-      "real_speaker_id": "5400",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.189414801011615,
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-      "utterance_id": "5412-39899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 55860
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 23.48645060015126,
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-      "utterance_id": "5400-3587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-3587.flac |",
-      "real_speaker_id": "5400",
-      "position_frames": 77984
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.386575889214086,
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-      "duration": 2.613424110785914,
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-      "utterance_id": "2182-150130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 70115
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5400/laugh/0076.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/laugh/0067.wav",
-      "duration": 1.0,
-      "start_time": 10.6554348330967,
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-    {
-      "event_class": "cough",
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-      "duration": 1.36,
-      "start_time": 18.80647504504,
-      "speaker_id": "5400"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021246.json b/conversations/conv_021246.json
deleted file mode 100644
index 8b70653a626722c5d81c5dd62729719aa597dd03..0000000000000000000000000000000000000000
--- a/conversations/conv_021246.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19056769656196,
-  "num_speakers": 3,
-  "overlap_rate": 0.6666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.654022489681408,
-      "duration": 3.654022489681408,
-      "start_frame": 0,
-      "duration_frames": 58464,
-      "overlap": false,
-      "utterance_id": "2909-34661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-34661.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.6384314922114385,
-      "end_time": 8.039002383917943,
-      "duration": 4.400570891706505,
-      "start_frame": 58214,
-      "duration_frames": 70409,
-      "overlap": true,
-      "utterance_id": "93-126209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-126209.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.49057002311553,
-      "end_time": 14.937886831529298,
-      "duration": 5.447316808413768,
-      "start_frame": 151849,
-      "duration_frames": 87157,
-      "overlap": false,
-      "utterance_id": "7276-90847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-90847.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.23243566276381,
-      "end_time": 21.491458171982817,
-      "duration": 6.259022509219007,
-      "start_frame": 243718,
-      "duration_frames": 100144,
-      "overlap": true,
-      "utterance_id": "2909-81524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-81524.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.098442035525835,
-      "end_time": 28.135716244497964,
-      "duration": 6.037274208972127,
-      "start_frame": 353575,
-      "duration_frames": 96596,
-      "overlap": true,
-      "utterance_id": "7276-90847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-90847.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 87157
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.69273135109263,
-      "end_time": 31.19056769656196,
-      "duration": 2.497836345469331,
-      "start_frame": 459083,
-      "duration_frames": 39965,
-      "overlap": true,
-      "utterance_id": "93-124558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-124558.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
-      "duration": 15.645027767976101,
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2909/cough/0130.wav",
-      "duration": 1.2,
-      "start_time": 1.7586625953718067,
-      "speaker_id": "2909"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/93/laugh/0064.wav",
-      "duration": 0.9240033128886707,
-      "start_time": 4.7691225017555965,
-      "speaker_id": "93"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/93/cough/0076.wav",
-      "duration": 0.6246261326291374,
-      "start_time": 8.148572849093792,
-      "speaker_id": "93"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2909/laugh/0095.wav",
-      "duration": 1.7070736797970891,
-      "start_time": 19.75401594958095,
-      "speaker_id": "2909"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021247.json b/conversations/conv_021247.json
deleted file mode 100644
index c817d4cb1841f7ed083e3d7f6dcca0c505eaf48d..0000000000000000000000000000000000000000
--- a/conversations/conv_021247.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.886052061182675,
-      "duration": 6.886052061182675,
-      "start_frame": 0,
-      "duration_frames": 110176,
-      "overlap": false,
-      "utterance_id": "65-122444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-122444.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.126616252002747,
-      "end_time": 10.734825945174531,
-      "duration": 3.6082096931717853,
-      "start_frame": 114025,
-      "duration_frames": 57731,
-      "overlap": false,
-      "utterance_id": "4273-188159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188159.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.392822789300247,
-      "end_time": 14.520106857061705,
-      "duration": 3.1272840677614586,
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-      "duration_frames": 50036,
-      "overlap": false,
-      "utterance_id": "2039-141209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.20025165309178,
-      "end_time": 20.60292108686253,
-      "duration": 5.40266943377075,
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-      "overlap": false,
-      "utterance_id": "65-121089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-121089.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.91846256627559,
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-      "duration_frames": 70686,
-      "overlap": false,
-      "utterance_id": "2039-141209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 50036
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.25060573426334,
-      "end_time": 31.026925286441738,
-      "duration": 4.7763195521784,
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-      "duration_frames": 76421,
-      "overlap": false,
-      "utterance_id": "4273-188159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188159.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 57731
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.544484910635184,
-      "end_time": 32.0,
-      "duration": 0.4555150893648161,
-      "start_frame": 504711,
-      "duration_frames": 7288,
-      "overlap": false,
-      "utterance_id": "65-121089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-121089.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 86442
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
-      "duration": 3.9453529754518506,
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4273/laugh/0004.wav",
-      "duration": 1.12,
-      "start_time": 7.400552588681014,
-      "speaker_id": "4273"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/65/laugh/0097.wav",
-      "duration": 1.2378765259358777,
-      "start_time": 30.762123474064122,
-      "speaker_id": "65"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021251.json b/conversations/conv_021251.json
deleted file mode 100644
index 8d270106027e1496584d49bed3119502656e9d7e..0000000000000000000000000000000000000000
--- a/conversations/conv_021251.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.653510375972036,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.953257023635151,
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-      "start_frame": 0,
-      "duration_frames": 111252,
-      "overlap": false,
-      "utterance_id": "3592-173545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3592-173545.flac |",
-      "real_speaker_id": "3592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.668380333241354,
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-      "overlap": false,
-      "utterance_id": "2533-149939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.87583050233903,
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-      "duration_frames": 97658,
-      "overlap": true,
-      "utterance_id": "2533-149939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 101034
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 22.10493574952391,
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-      "duration": 5.281231445754424,
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-      "duration_frames": 84499,
-      "overlap": false,
-      "utterance_id": "3592-173545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3592-173545.flac |",
-      "real_speaker_id": "3592",
-      "position_frames": 111252
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.541934757857245,
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-      "utterance_id": "2533-149939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 198692
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3592/cough/0033.wav",
-      "duration": 0.6628610921309418,
-      "start_time": 0,
-      "speaker_id": "3592"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3592/cough/0040.wav",
-      "duration": 0.591032461718155,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021256.json b/conversations/conv_021256.json
deleted file mode 100644
index 4d9a5598a4e255ac15139b5e0db6a4eb384a76e4..0000000000000000000000000000000000000000
--- a/conversations/conv_021256.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.474541307695689,
-      "duration": 4.474541307695689,
-      "start_frame": 0,
-      "duration_frames": 71592,
-      "overlap": false,
-      "utterance_id": "2751-142362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142362.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.292314419056563,
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-      "duration": 4.240279804774493,
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-      "overlap": false,
-      "utterance_id": "7754-105383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-105383.flac |",
-      "real_speaker_id": "7754",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.826325159428123,
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-      "utterance_id": "2751-142363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.849597188497059,
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-      "duration_frames": 74386,
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-      "utterance_id": "2751-142362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142362.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 71592
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.313474064578852,
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-      "overlap": false,
-      "utterance_id": "7754-105383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-105383.flac |",
-      "real_speaker_id": "7754",
-      "position_frames": 67844
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 5.36354289662151,
-      "start_frame": 426183,
-      "duration_frames": 85816,
-      "overlap": false,
-      "utterance_id": "2751-142363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 95791
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.490378803415879,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 1.203430917479351,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7754/laugh/0001.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2751/laugh/0078.wav",
-      "duration": 1.2,
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-      "speaker_id": "2751"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021267.json b/conversations/conv_021267.json
deleted file mode 100644
index 7642305300050a16480bf56e13b68e3f5b5349a3..0000000000000000000000000000000000000000
--- a/conversations/conv_021267.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_021271.json b/conversations/conv_021271.json
deleted file mode 100644
index 15c0c80fa39df39019c56c79df03e91ea3978c61..0000000000000000000000000000000000000000
--- a/conversations/conv_021271.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1058-133263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-133263.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
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\ No newline at end of file
diff --git a/conversations/conv_021283.json b/conversations/conv_021283.json
deleted file mode 100644
index 8c8fb44f845273f04af6c9398429562138975a70..0000000000000000000000000000000000000000
--- a/conversations/conv_021283.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021284.json b/conversations/conv_021284.json
deleted file mode 100644
index 61957bce23bd751dd2a2198a8daaa687fa1cb7a6..0000000000000000000000000000000000000000
--- a/conversations/conv_021284.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77351.flac |",
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-      "event_class": "Dog",
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-      "speaker_id": "6284"
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-}
\ No newline at end of file
diff --git a/conversations/conv_021288.json b/conversations/conv_021288.json
deleted file mode 100644
index 50b92f7b54804275cac9405062de056f3be122fd..0000000000000000000000000000000000000000
--- a/conversations/conv_021288.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-141263.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "684-139205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-139205.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.114791205056314,
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-      "utterance_id": "6794-73984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6794-73984.flac |",
-      "real_speaker_id": "6794",
-      "position_frames": 67488
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.10834220946076,
-      "end_time": 26.517574243386964,
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-      "utterance_id": "3896-134415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3896-134415.flac |",
-      "real_speaker_id": "3896",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.576606042087217,
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-      "duration": 4.423393957912783,
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-      "utterance_id": "684-131458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-131458.flac |",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Blender",
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-      "speaker_id": "684"
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\ No newline at end of file
diff --git a/conversations/conv_021292.json b/conversations/conv_021292.json
deleted file mode 100644
index cc38c808ca8661f6cdc366cddd9a53030155daf6..0000000000000000000000000000000000000000
--- a/conversations/conv_021292.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.738611483807727,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161707.flac |",
-      "real_speaker_id": "2294",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
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-      "position_frames": 52293
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.325945043815995,
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-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 90123
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.805263979445918,
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-      "utterance_id": "2294-161714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161714.flac |",
-      "real_speaker_id": "2294",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_021295.json b/conversations/conv_021295.json
deleted file mode 100644
index b8c0eb617bf403bc37a78e1dd351c953976df6d0..0000000000000000000000000000000000000000
--- a/conversations/conv_021295.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.951042109920433,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_021302.json b/conversations/conv_021302.json
deleted file mode 100644
index b7267bd4e6d332bae8eadb2cd088c73582984ad3..0000000000000000000000000000000000000000
--- a/conversations/conv_021302.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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\ No newline at end of file
diff --git a/conversations/conv_021303.json b/conversations/conv_021303.json
deleted file mode 100644
index 48e94a103f7c398ebdd0a6bc2d74b440f9e59ee1..0000000000000000000000000000000000000000
--- a/conversations/conv_021303.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7732-107520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107520.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7746-104992.flac |",
-      "real_speaker_id": "7746",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7746-104993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7746-104993.flac |",
-      "real_speaker_id": "7746",
-      "position_frames": 75188
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.855077932402786,
-      "end_time": 32.0,
-      "duration": 4.144922067597214,
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-      "utterance_id": "1737-146161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-146161.flac |",
-      "real_speaker_id": "1737",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021313.json b/conversations/conv_021313.json
deleted file mode 100644
index e0b2dc49b3411bef85ceb30c04dd7f8be78ea7a4..0000000000000000000000000000000000000000
--- a/conversations/conv_021313.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144391.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-23290.flac |",
-      "real_speaker_id": "5045",
-      "position_frames": 0
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-      "start_time": 30.65693359610595,
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-      "utterance_id": "1819-144391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144391.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 84922
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1819"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021314.json b/conversations/conv_021314.json
deleted file mode 100644
index 7207eca4e8eee10e6bbe3b4e85bdeb4d8c6a4031..0000000000000000000000000000000000000000
--- a/conversations/conv_021314.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "duration": 3.7976365258820013,
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-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2361-165622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-165622.flac |",
-      "real_speaker_id": "2361",
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-      "real_speaker_id": "2361",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 14.259526739150216,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120325.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2676",
-      "position_frames": 60762
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 5.020493857638857,
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-      "overlap": false,
-      "utterance_id": "7939-120318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120318.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.330220254196107,
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-      "duration": 2.6697797458038934,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
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-      "position_frames": 75705
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-  ],
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/cough/0092.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2361/laugh/0059.wav",
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-      "start_time": 8.332688177249267,
-      "speaker_id": "2361"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021318.json b/conversations/conv_021318.json
deleted file mode 100644
index 92f0180be80568866d6d1522866d620293d2bcc2..0000000000000000000000000000000000000000
--- a/conversations/conv_021318.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
-      "real_speaker_id": "1373",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "7090",
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-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_021322.json b/conversations/conv_021322.json
deleted file mode 100644
index 8078d5a7baa47af55821d3e9d9f9ba234cbec562..0000000000000000000000000000000000000000
--- a/conversations/conv_021322.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
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-      "real_speaker_id": "489",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-52067.flac |",
-      "real_speaker_id": "5545",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75909.flac |",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5545-52072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-52072.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021329.json b/conversations/conv_021329.json
deleted file mode 100644
index d578d00e36d5a32dcc4cb983e11822f36572c634..0000000000000000000000000000000000000000
--- a/conversations/conv_021329.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.161833781270104,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6794-73984.flac |",
-      "real_speaker_id": "6794",
-      "position_frames": 0
-    },
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-    {
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 92434
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021334.json b/conversations/conv_021334.json
deleted file mode 100644
index 36387d36bdda010072bfe451cabbec460443a6bd..0000000000000000000000000000000000000000
--- a/conversations/conv_021334.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.069028382081624,
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-      "utterance_id": "8394-96177",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "7956",
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-      "segment_id": "seg0002",
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-      "utterance_id": "2039-141209",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2039/laugh/0126.wav",
-      "duration": 1.32,
-      "start_time": 14.960053579700757,
-      "speaker_id": "2039"
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "8394"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021338.json b/conversations/conv_021338.json
deleted file mode 100644
index 14cdaecea65407f1dcf47358bddf5f59dddab589..0000000000000000000000000000000000000000
--- a/conversations/conv_021338.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.5635276640021205,
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-      "overlap": false,
-      "utterance_id": "6019-3185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 5.011760875469346,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-65546.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
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-      "speaker_id": 0,
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123215.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.896462592545287,
-      "end_time": 32.0,
-      "duration": 3.103537407454713,
-      "start_frame": 462343,
-      "duration_frames": 49656,
-      "overlap": false,
-      "utterance_id": "6557-65546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-65546.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 81425
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
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-      "start_time": 0,
-      "speaker_id": "6019"
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-    {
-      "event_class": "laugh",
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-      "start_time": 27.2144442387316,
-      "speaker_id": "6557"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021343.json b/conversations/conv_021343.json
deleted file mode 100644
index d15df7188a9f858ca6b5066046d74a90831b37a8..0000000000000000000000000000000000000000
--- a/conversations/conv_021343.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.571645790367246,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.27159412231685,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5665-38051.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5665-38051.flac |",
-      "real_speaker_id": "5665",
-      "position_frames": 96480
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.59628595796423,
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-      "duration_frames": 79605,
-      "overlap": false,
-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 146107
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.32,
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-      "speaker_id": "5665"
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-    {
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-      "speaker_id": "173"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021354.json b/conversations/conv_021354.json
deleted file mode 100644
index 8366a3f47d145e34eb88a13b1573cc7475e367e6..0000000000000000000000000000000000000000
--- a/conversations/conv_021354.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-55927.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130569.flac |",
-      "real_speaker_id": "815",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137141.flac |",
-      "real_speaker_id": "984",
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-      "position_frames": 0
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5935/laugh/0092.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021355.json b/conversations/conv_021355.json
deleted file mode 100644
index d1d28674758395ac49e28f0a91e3c1ebb1a9da0d..0000000000000000000000000000000000000000
--- a/conversations/conv_021355.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 0
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-      "duration_frames": 72357,
-      "overlap": false,
-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 202698
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.056216066074562,
-      "end_time": 32.0,
-      "duration": 0.9437839339254381,
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-      "utterance_id": "4492-8904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
-      "duration": 0.16043083900226757,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.8995496488424033,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "8246"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_021359.json b/conversations/conv_021359.json
deleted file mode 100644
index 881b9fa4f856763334402b0237bab581d02bf6d4..0000000000000000000000000000000000000000
--- a/conversations/conv_021359.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.2763917366655235,
-      "duration": 5.2763917366655235,
-      "start_frame": 0,
-      "duration_frames": 84422,
-      "overlap": false,
-      "utterance_id": "4059-3073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3073.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.2089994565912034,
-      "end_time": 10.817778773644548,
-      "duration": 4.6087793170533455,
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-      "duration_frames": 73740,
-      "overlap": false,
-      "utterance_id": "779-126735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-126735.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.573511359797887,
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-      "overlap": false,
-      "utterance_id": "4480-8371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-8371.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.85323163702985,
-      "end_time": 22.28135784540656,
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-      "start_frame": 269651,
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-      "overlap": false,
-      "utterance_id": "4059-3069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3069.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.60854516899097,
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-      "duration": 5.257623611520039,
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-      "duration_frames": 84121,
-      "overlap": false,
-      "utterance_id": "779-126735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-126735.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 73740
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.188395690394678,
-      "end_time": 32.0,
-      "duration": 3.811604309605322,
-      "start_frame": 451014,
-      "duration_frames": 60985,
-      "overlap": false,
-      "utterance_id": "4480-44312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 12.097615672371552,
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
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-      "speaker_id": "4059"
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-    {
-      "event_class": "cough",
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-      "duration": 0.6782262730305475,
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-      "event_class": "cough",
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-      "speaker_id": "4480"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021363.json b/conversations/conv_021363.json
deleted file mode 100644
index 313aad4fa6499ae1aa1f0a9962f1ef2c7ab17c1b..0000000000000000000000000000000000000000
--- a/conversations/conv_021363.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1311-134170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.3166123463937005,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "6127-2344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-2344.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.596275452384683,
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-      "utterance_id": "1311-134170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 90771
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.646202043183305,
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-      "utterance_id": "1311-134170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 165518
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6127-14967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-14967.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.441697639100724,
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-      "duration": 1.558302360899276,
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-      "utterance_id": "1311-134170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/laugh/0046.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1311/laugh/0027.wav",
-      "duration": 1.36,
-      "start_time": 14.708889851002036,
-      "speaker_id": "1311"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/laugh/0091.wav",
-      "duration": 1.12,
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-      "speaker_id": "6127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021368.json b/conversations/conv_021368.json
deleted file mode 100644
index 92c18216d1816f5b06845b730dcac462e9c8ac41..0000000000000000000000000000000000000000
--- a/conversations/conv_021368.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "175-127696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-127696.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.08474217236386,
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-      "utterance_id": "7012-82949",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "4480-8371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-8371.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 90196
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-    {
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-      "real_speaker_id": "175",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4480-44312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 0
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7012/laugh/0022.wav",
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-      "start_time": 23.418278265892447,
-      "speaker_id": "7012"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4480/cough/0114.wav",
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-      "start_time": 27.90267975442717,
-      "speaker_id": "4480"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021375.json b/conversations/conv_021375.json
deleted file mode 100644
index 9af06ef48fc5d38ff6a70edcc35ff9c51f80933e..0000000000000000000000000000000000000000
--- a/conversations/conv_021375.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6339-65534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3033-130750.flac |",
-      "real_speaker_id": "3033",
-      "position_frames": 0
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-      "real_speaker_id": "1731",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.770549983821944,
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-      "duration": 3.0538244613544383,
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-      "duration_frames": 48861,
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-      "utterance_id": "3033-130750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3033-130750.flac |",
-      "real_speaker_id": "3033",
-      "position_frames": 81849
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.70739640383978,
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-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 71468
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.77888168676717,
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-      "duration": 4.221118313232829,
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-      "utterance_id": "6339-65554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
-      "duration": 2.236848072562358,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.760232528034339,
-      "start_time": 24.161470338097583
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1731/laugh/0030.wav",
-      "duration": 0.6531591428250285,
-      "start_time": 26.30743637454671,
-      "speaker_id": "1731"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021379.json b/conversations/conv_021379.json
deleted file mode 100644
index 6ffe46d981e9a2dbc626f37c809293f2a18a7584..0000000000000000000000000000000000000000
--- a/conversations/conv_021379.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.149980466825593,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.271839471382362,
-      "duration": 3.271839471382362,
-      "start_frame": 0,
-      "duration_frames": 52349,
-      "overlap": false,
-      "utterance_id": "956-127929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127929.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.3756890347350095,
-      "end_time": 7.2590444314677,
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-      "start_frame": 54011,
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-      "overlap": false,
-      "utterance_id": "956-127929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127929.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 52349
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.505016880429778,
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-      "overlap": false,
-      "utterance_id": "4693-28003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4693-28003.flac |",
-      "real_speaker_id": "4693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.207652769749636,
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-      "duration": 4.0593169446588995,
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-      "overlap": false,
-      "utterance_id": "8725-294554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294554.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 16.605411994458684,
-      "end_time": 20.40778696654419,
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-      "duration_frames": 60837,
-      "overlap": false,
-      "utterance_id": "4693-28003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4693-28003.flac |",
-      "real_speaker_id": "4693",
-      "position_frames": 63147
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 21.011921964998052,
-      "end_time": 26.186352361197528,
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-      "start_frame": 336190,
-      "duration_frames": 82790,
-      "overlap": false,
-      "utterance_id": "956-157879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 25.9954309861777,
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-      "utterance_id": "956-127932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4693/laugh/0027.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/956/laugh/0050.wav",
-      "duration": 1.88,
-      "start_time": 28.715521100922174,
-      "speaker_id": "956"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021380.json b/conversations/conv_021380.json
deleted file mode 100644
index 9e42021a358c19e2aa9b06ad4dd484f5af0b1314..0000000000000000000000000000000000000000
--- a/conversations/conv_021380.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5778-54535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-54535.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.556524797298997,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123500.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123500.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 69302
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.818900548828307,
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-      "utterance_id": "5077-38099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38099.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.18207559228801,
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-      "duration": 6.523514573979645,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123500.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 118619
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.849661090833166,
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-      "duration_frames": 68380,
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-      "utterance_id": "303-123507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123507.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.62431999099739,
-      "end_time": 32.0,
-      "duration": 0.3756800090026111,
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-      "duration_frames": 6010,
-      "overlap": false,
-      "utterance_id": "5077-38099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38099.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 52064
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/303/cough/0026.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 14.415112890688565,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5077/laugh/0065.wav",
-      "duration": 0.5212989711093267,
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-      "speaker_id": "5077"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/303/cough/0071.wav",
-      "duration": 1.16,
-      "start_time": 25.523321187105026,
-      "speaker_id": "303"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021387.json b/conversations/conv_021387.json
deleted file mode 100644
index 1d5db568434c17aa58acc0a68535126f9adef9fb..0000000000000000000000000000000000000000
--- a/conversations/conv_021387.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.850436120818628,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.2855409754667395,
-      "duration": 5.2855409754667395,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3228-4687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4687.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.402589810591382,
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-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.314717835530235,
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-      "utterance_id": "3228-4690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.77151159548569,
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-      "duration_frames": 60346,
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-      "utterance_id": "3228-4687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4687.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 84568
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.15729443806611,
-      "end_time": 25.92761565974801,
-      "duration": 3.7703212216819004,
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-      "utterance_id": "6754-107484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107484.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.695009946415844,
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-      "duration_frames": 82486,
-      "overlap": false,
-      "utterance_id": "3228-4691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4691.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 3.020401041823284,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7654/laugh/0010.wav",
-      "duration": 0.5721579122216114,
-      "start_time": 10.999369310501622,
-      "speaker_id": "7654"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021391.json b/conversations/conv_021391.json
deleted file mode 100644
index 7b1c12c4f7e5f337b2358a0be6384a603ceb80f8..0000000000000000000000000000000000000000
--- a/conversations/conv_021391.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.083700077016379,
-      "duration": 5.083700077016379,
-      "start_frame": 0,
-      "duration_frames": 81339,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-291181.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.86023751973496,
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-      "duration": 4.139762480265041,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
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-      "position_frames": 146150
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "start_time": 0,
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-      "speaker_id": "1726"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021396.json b/conversations/conv_021396.json
deleted file mode 100644
index b8b6026309208978032debdb5ecb71f59babb336..0000000000000000000000000000000000000000
--- a/conversations/conv_021396.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4289-21393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-21393.flac |",
-      "real_speaker_id": "4289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.11373850417339,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
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-      "real_speaker_id": "6258",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
-      "real_speaker_id": "6258",
-      "position_frames": 166811
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-12723.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021400.json b/conversations/conv_021400.json
deleted file mode 100644
index 9bb397c2b07a7ff7a62ac51484a56a7417be3996..0000000000000000000000000000000000000000
--- a/conversations/conv_021400.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63101.flac |",
-      "real_speaker_id": "6288",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-15217.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220951.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 53138
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4734/cough/0083.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021407.json b/conversations/conv_021407.json
deleted file mode 100644
index 4fab1990bf79847a478df6bb60a5edfe8c2a19a7..0000000000000000000000000000000000000000
--- a/conversations/conv_021407.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "56-1730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1730.flac |",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/56/laugh/0111.wav",
-      "duration": 1.04,
-      "start_time": 17.539246722607455,
-      "speaker_id": "56"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021411.json b/conversations/conv_021411.json
deleted file mode 100644
index 1746bda218a53c52045c763c999760007a06066b..0000000000000000000000000000000000000000
--- a/conversations/conv_021411.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.698189004361779,
-      "duration": 4.698189004361779,
-      "start_frame": 0,
-      "duration_frames": 75171,
-      "overlap": false,
-      "utterance_id": "5293-82020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5293-82020.flac |",
-      "real_speaker_id": "5293",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.117074573606647,
-      "end_time": 10.240800220025505,
-      "duration": 5.123725646418857,
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-      "utterance_id": "5076-61727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-61727.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.140038043892694,
-      "end_time": 14.867630888319717,
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-      "duration_frames": 59641,
-      "overlap": false,
-      "utterance_id": "5293-82020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5293-82020.flac |",
-      "real_speaker_id": "5293",
-      "position_frames": 75171
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.969258275975488,
-      "end_time": 20.531852848790766,
-      "duration": 5.5625945728152795,
-      "start_frame": 239508,
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-      "overlap": false,
-      "utterance_id": "5076-284283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-284283.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.66860997740265,
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-      "duration": 4.304396112413442,
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-      "duration_frames": 68870,
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-      "utterance_id": "5076-287393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-287393.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.828894166309148,
-      "end_time": 30.479462773765782,
-      "duration": 4.650568607456636,
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-      "duration_frames": 74409,
-      "overlap": false,
-      "utterance_id": "2285-149890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-149890.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.801626562245467,
-      "end_time": 32.0,
-      "duration": 1.1983734377545332,
-      "start_frame": 492826,
-      "duration_frames": 19173,
-      "overlap": false,
-      "utterance_id": "5076-61727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-61727.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 81979
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5293/laugh/0069.wav",
-      "duration": 1.12,
-      "start_time": 0.8645595239559359,
-      "speaker_id": "5293"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2285/cough/0096.wav",
-      "duration": 0.5244840354821725,
-      "start_time": 30.526292017008196,
-      "speaker_id": "2285"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5076/cough/0118.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "5076"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021416.json b/conversations/conv_021416.json
deleted file mode 100644
index ea327aaa9f444bf76a5119b213b3c48b7721da28..0000000000000000000000000000000000000000
--- a/conversations/conv_021416.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.06211857438429,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.171409621968774,
-      "duration": 4.171409621968774,
-      "start_frame": 0,
-      "duration_frames": 66742,
-      "overlap": false,
-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.94910249963498,
-      "end_time": 9.731874727624856,
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-      "overlap": false,
-      "utterance_id": "79-121541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.143694672652451,
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-      "duration": 4.741192056142386,
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-      "overlap": false,
-      "utterance_id": "5983-39652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39652.flac |",
-      "real_speaker_id": "5983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.02344756247178,
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-      "overlap": false,
-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 66742
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.02263598205951,
-      "end_time": 23.61271624015361,
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-      "utterance_id": "5983-39669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39669.flac |",
-      "real_speaker_id": "5983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.862786353411018,
-      "end_time": 30.148076920408908,
-      "duration": 6.285290566997889,
-      "start_frame": 381804,
-      "duration_frames": 100564,
-      "overlap": false,
-      "utterance_id": "79-121541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
-      "position_frames": 76524
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.59364075288908,
-      "end_time": 31.06211857438429,
-      "duration": 1.4684778214952097,
-      "start_frame": 473498,
-      "duration_frames": 23495,
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-      "utterance_id": "5983-39666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39666.flac |",
-      "real_speaker_id": "5983",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
-      "duration": 14.690997732426304,
-      "start_time": 13.897617441933571
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
-      "duration": 0.16043083900226757,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/79/laugh/0015.wav",
-      "duration": 1.0009559993585355,
-      "start_time": 9.858421286616519,
-      "speaker_id": "79"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021420.json b/conversations/conv_021420.json
deleted file mode 100644
index e23fbbd38be94d9e3178f0514921c30a3476c321..0000000000000000000000000000000000000000
--- a/conversations/conv_021420.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.651803255991855,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.811037475794516,
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-      "overlap": false,
-      "utterance_id": "6415-100596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-100596.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.391197934713573,
-      "end_time": 12.004198767582604,
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-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.2334437599851,
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-      "duration": 4.4166526556143975,
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-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 89808
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.532710162789723,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-100596.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 92976
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.920845027664992,
-      "end_time": 31.651803255991855,
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-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 160474
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "start_time": 7.19788417347542
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_0.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/807/cough/0049.wav",
-      "duration": 0.8588256216293346,
-      "start_time": 25.02423245889551,
-      "speaker_id": "807"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021436.json b/conversations/conv_021436.json
deleted file mode 100644
index 884af1414262aa8bb0e64413978d226d1e2c041e..0000000000000000000000000000000000000000
--- a/conversations/conv_021436.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.94088396982107,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.709526522654447,
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-      "duration_frames": 75352,
-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.826342327452929,
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-      "duration": 6.5752875977039285,
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-      "duration_frames": 105204,
-      "overlap": false,
-      "utterance_id": "40-121026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-121026.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.960414296739572,
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-      "duration": 4.824468371770831,
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-      "duration_frames": 77191,
-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 75352
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.002702203830793,
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-      "start_frame": 272043,
-      "duration_frames": 100167,
-      "overlap": false,
-      "utterance_id": "40-222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.144614119275438,
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-      "duration": 3.0545195056913768,
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-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 152543
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.661625784685214,
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-      "duration": 4.2792581851358555,
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-      "duration_frames": 68468,
-      "overlap": false,
-      "utterance_id": "40-222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 100167
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021441.json b/conversations/conv_021441.json
deleted file mode 100644
index 3baeb246c4d71fc4280a6d67cc34d01ea615eebc..0000000000000000000000000000000000000000
--- a/conversations/conv_021441.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.382869317731174,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_021446.json b/conversations/conv_021446.json
deleted file mode 100644
index 3708381855ad7ed067c82218fbd9ec60f3d0d3e5..0000000000000000000000000000000000000000
--- a/conversations/conv_021446.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.676126831346192,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_021450.json b/conversations/conv_021450.json
deleted file mode 100644
index cda4ec1024fff9ce85633c53f395ec305a09fdff..0000000000000000000000000000000000000000
--- a/conversations/conv_021450.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021457.json b/conversations/conv_021457.json
deleted file mode 100644
index 6c1ade268d57fcf20ebd5a370246443dda547e75..0000000000000000000000000000000000000000
--- a/conversations/conv_021457.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-130001.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 80432
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-    {
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-      "speaker_id": 0,
-      "start_time": 30.81710540153589,
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-      "utterance_id": "1110-136055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-136055.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-      "speaker_id": "101"
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-      "duration": 1.0,
-      "start_time": 11.303564199545548,
-      "speaker_id": "402"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_021461.json b/conversations/conv_021461.json
deleted file mode 100644
index 98deb341e4dda5310cd1be23dfcd47e5b79b524a..0000000000000000000000000000000000000000
--- a/conversations/conv_021461.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.284316776408907,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2237-163673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-163673.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.174434612227444,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168637.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 15.13630452277909,
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-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.71811229730853,
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-      "overlap": true,
-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 75444
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.92994163593016,
-      "end_time": 31.284316776408907,
-      "duration": 5.354375140478747,
-      "start_frame": 414879,
-      "duration_frames": 85670,
-      "overlap": false,
-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 74195
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_1.wav",
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-      "duration": 1.24,
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021477.json b/conversations/conv_021477.json
deleted file mode 100644
index 54b549bace4461d45f06bea6d53a28e42b6ec9d0..0000000000000000000000000000000000000000
--- a/conversations/conv_021477.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.62059720505276,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "8605-292138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-292138.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "real_speaker_id": "46",
-      "position_frames": 102190
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.369979346183957,
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-      "utterance_id": "46-128001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 174307
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021482.json b/conversations/conv_021482.json
deleted file mode 100644
index 3472adca9b6f7de775e44649bf4c14f083fe9557..0000000000000000000000000000000000000000
--- a/conversations/conv_021482.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "6962",
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-    {
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-      "real_speaker_id": "6782",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-36632.flac |",
-      "real_speaker_id": "6227",
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-      "segment_id": "seg0005",
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-      "utterance_id": "6782-61316",
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-      "real_speaker_id": "6782",
-      "position_frames": 123464
-    },
-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.12,
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-}
\ No newline at end of file
diff --git a/conversations/conv_021494.json b/conversations/conv_021494.json
deleted file mode 100644
index 2e26cf06d042ade7d55b560074a6c413a3b032ee..0000000000000000000000000000000000000000
--- a/conversations/conv_021494.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.725215076746913,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.205619543959822,
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-      "utterance_id": "4742-41609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "7408",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4742-74181",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021495.json b/conversations/conv_021495.json
deleted file mode 100644
index a3ded2d6a6aa1d8af5b1f3e4feefbde80affd538..0000000000000000000000000000000000000000
--- a/conversations/conv_021495.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.900065878986545,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.271304875270198,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "6875",
-      "position_frames": 101230
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.190847557090855,
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-      "utterance_id": "737-123441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "speaker_id": "6875"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021498.json b/conversations/conv_021498.json
deleted file mode 100644
index 0225503157f3e715b7b82166322f97a6095d2c78..0000000000000000000000000000000000000000
--- a/conversations/conv_021498.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-29116.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3172-166439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
-      "real_speaker_id": "3172",
-      "position_frames": 91492
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-29116.flac |",
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-      "position_frames": 70986
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_021499.json b/conversations/conv_021499.json
deleted file mode 100644
index 2e280ccb52ec685bc6cc73cbd355f4a831c704af..0000000000000000000000000000000000000000
--- a/conversations/conv_021499.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8195-117382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 72390
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "1413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8195",
-      "position_frames": 160351
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "end_time": 29.027411184612752,
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-      "overlap": false,
-      "utterance_id": "1226-141279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
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-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
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-      "position_frames": 247896
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021503.json b/conversations/conv_021503.json
deleted file mode 100644
index 3bd6ad48ca4796c1fb40af4c6fef3ae9e3317668..0000000000000000000000000000000000000000
--- a/conversations/conv_021503.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6391-65553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
-      "real_speaker_id": "6391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.255611695275174,
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-      "utterance_id": "4744-83616",
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-      "real_speaker_id": "4744",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
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-      "position_frames": 65953
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8098-275181.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_021504.json b/conversations/conv_021504.json
deleted file mode 100644
index 027b6a0a712ed59bd932f4b15731b50e4de1926b..0000000000000000000000000000000000000000
--- a/conversations/conv_021504.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86040.flac |",
-      "real_speaker_id": "2758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.80191891712693,
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-      "utterance_id": "5588-68188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-68188.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_021508.json b/conversations/conv_021508.json
deleted file mode 100644
index e9627060554d75eec27e966726b6883c863acbae..0000000000000000000000000000000000000000
--- a/conversations/conv_021508.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "3063-138652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138652.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166423.flac |",
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-      "real_speaker_id": "3070",
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-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166423.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 143663
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-      "real_speaker_id": "2348",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-      "start_time": 14.730058219424121,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 13.2667933563262,
-      "speaker_id": "3070"
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-      "event_class": "laugh",
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-      "start_time": 26.487094650385167,
-      "speaker_id": "3070"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021512.json b/conversations/conv_021512.json
deleted file mode 100644
index 0564862f7c7adc8e2ff8f125f619a14289e9ed22..0000000000000000000000000000000000000000
--- a/conversations/conv_021512.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.08622954116209,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "8565-290393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290393.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.365896305736139,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-61421.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8565-290393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290393.flac |",
-      "real_speaker_id": "8565",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.276095704408213,
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-      "utterance_id": "4295-112687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-112687.flac |",
-      "real_speaker_id": "4295",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-61421.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 52626
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 83635,
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-      "utterance_id": "4295-39940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-39940.flac |",
-      "real_speaker_id": "4295",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021515.json b/conversations/conv_021515.json
deleted file mode 100644
index 8b7f031a716b5ccb511cdbfc5fbbab688add2f21..0000000000000000000000000000000000000000
--- a/conversations/conv_021515.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "392",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/392-289427.flac |",
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-  "paralinguistic_events": [
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-      "start_time": 17.090774018222284,
-      "speaker_id": "4894"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_021524.json b/conversations/conv_021524.json
deleted file mode 100644
index aef385fbf4e7101e16048bcd8d6f689c0677db88..0000000000000000000000000000000000000000
--- a/conversations/conv_021524.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4492-8904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
-      "real_speaker_id": "4492",
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-      "utterance_id": "3607-135982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-135982.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.15384165616724,
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-      "overlap": false,
-      "utterance_id": "4492-8904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 163306
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.220796438899104,
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-      "utterance_id": "3607-135982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-135982.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 76509
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.232827587961445,
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-      "utterance_id": "6937-112761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-112761.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021528.json b/conversations/conv_021528.json
deleted file mode 100644
index bd53a045eb1730962f9c6765b69ec17456517fb1..0000000000000000000000000000000000000000
--- a/conversations/conv_021528.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "3845-8924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8924.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.296971589476005,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8924.flac |",
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-      "real_speaker_id": "3540",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "3845-8894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8894.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.419695078319023,
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-      "position_frames": 99490
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021532.json b/conversations/conv_021532.json
deleted file mode 100644
index ec4d81b81325187c6643314c35dab7de4e044f0a..0000000000000000000000000000000000000000
--- a/conversations/conv_021532.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.958377372757737,
-      "duration": 6.958377372757737,
-      "start_frame": 0,
-      "duration_frames": 111334,
-      "overlap": false,
-      "utterance_id": "1502-122615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122615.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.309475842031874,
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-      "duration_frames": 71621,
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-      "utterance_id": "8063-274116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274116.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.474229013193156,
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-      "overlap": false,
-      "utterance_id": "8063-274112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274112.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.34885268732614,
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-      "utterance_id": "1502-122619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122619.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.21782597479897,
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-      "duration_frames": 100065,
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-      "utterance_id": "596-139612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-139612.flac |",
-      "real_speaker_id": "596",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.184903518939517,
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-      "duration": 0.8150964810604826,
-      "start_frame": 498958,
-      "duration_frames": 13041,
-      "overlap": false,
-      "utterance_id": "1502-122615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122615.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 111334
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.4365619363331357,
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-  "paralinguistic_events": [
-    {
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-      "event_class": "cough",
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-      "duration": 0.98,
-      "start_time": 15.2853573848248,
-      "speaker_id": "1502"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/596/cough/0000.wav",
-      "duration": 1.4861010264046188,
-      "start_time": 27.261386633001376,
-      "speaker_id": "596"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1502/laugh/0133.wav",
-      "duration": 1.1136770153963842,
-      "start_time": 30.886322984603616,
-      "speaker_id": "1502"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1502/cough/0135.wav",
-      "duration": 1.342971680032857,
-      "start_time": 29.814476925023236,
-      "speaker_id": "1502"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021542.json b/conversations/conv_021542.json
deleted file mode 100644
index 03dd0cd52e64520bb07e64a9c4c223e201fed5a2..0000000000000000000000000000000000000000
--- a/conversations/conv_021542.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "segment_id": "seg0004",
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-  "background_events": [
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_021545.json b/conversations/conv_021545.json
deleted file mode 100644
index 4a4838c30c40d7158f27d1ef22f0741ed14ada4b..0000000000000000000000000000000000000000
--- a/conversations/conv_021545.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4014-186175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4014-186175.flac |",
-      "real_speaker_id": "4014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.1663083051503875,
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-      "utterance_id": "250-142276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142276.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.02475138516406,
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-      "utterance_id": "4014-186183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4014-186183.flac |",
-      "real_speaker_id": "4014",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.483670070469547,
-      "end_time": 22.988581305488843,
-      "duration": 5.504911235019295,
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-      "duration_frames": 88078,
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-      "utterance_id": "250-140277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-140277.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4014-186175.flac |",
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-      "utterance_id": "250-140277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-140277.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 88078
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
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-      "start_time": 0,
-      "speaker_id": "4014"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021549.json b/conversations/conv_021549.json
deleted file mode 100644
index 1c005594e61fb8c8b9dc7bf51643d852cc55bb6e..0000000000000000000000000000000000000000
--- a/conversations/conv_021549.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "781-127518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
-      "real_speaker_id": "781",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
-      "real_speaker_id": "781",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4263-20411.flac |",
-      "real_speaker_id": "4263",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "781-126737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-126737.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021553.json b/conversations/conv_021553.json
deleted file mode 100644
index 7df1caae988be7a646de25c6f9e2239558e52304..0000000000000000000000000000000000000000
--- a/conversations/conv_021553.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.601363060792341,
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-      "utterance_id": "448-135065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-135065.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 85334
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-135065.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 54453
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "2733-28252",
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-      "real_speaker_id": "2733",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.73466581053887,
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-      "duration": 1.2653341894611287,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-135065.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
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-      "duration": 1.24,
-      "start_time": 30.755762597481436,
-      "speaker_id": "448"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021554.json b/conversations/conv_021554.json
deleted file mode 100644
index 8f3c649be72b027f49da68b1defd6c91aa8f4d2a..0000000000000000000000000000000000000000
--- a/conversations/conv_021554.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1536-137608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1536-137608.flac |",
-      "real_speaker_id": "1536",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47239.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_021565.json b/conversations/conv_021565.json
deleted file mode 100644
index 7ba568b3ad3129823b1e48431f60b3ad0f03bff0..0000000000000000000000000000000000000000
--- a/conversations/conv_021565.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52134.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-60173.flac |",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_021568.json b/conversations/conv_021568.json
deleted file mode 100644
index 18b794e9e9b333d2f7df8229435c7bfb8caf6fa0..0000000000000000000000000000000000000000
--- a/conversations/conv_021568.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_021569.json b/conversations/conv_021569.json
deleted file mode 100644
index a387f0be51562ffd891aadaa5da9e9d227884ec5..0000000000000000000000000000000000000000
--- a/conversations/conv_021569.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-      "duration": 3.561247009203001,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5439/laugh/0121.wav",
-      "duration": 1.0564109850569865,
-      "start_time": 0.9888894401129117,
-      "speaker_id": "5439"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5439/cough/0007.wav",
-      "duration": 1.1719271387718189,
-      "start_time": 17.495028521248354,
-      "speaker_id": "5439"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021573.json b/conversations/conv_021573.json
deleted file mode 100644
index 23f4e5d0ea680e2e2b9817c486b641f655eae0dd..0000000000000000000000000000000000000000
--- a/conversations/conv_021573.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.639355108495447,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.983175448388437,
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-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.028462691641425,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
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-      "position_frames": 0
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-      "utterance_id": "7294-86026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7294-86026.flac |",
-      "real_speaker_id": "7294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.361339033186137,
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-      "duration": 3.6841697012322805,
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-      "overlap": false,
-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 78671
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.977304933760927,
-      "end_time": 25.69536703947802,
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-      "utterance_id": "7294-92934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7294-92934.flac |",
-      "real_speaker_id": "7294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.55442238285127,
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-      "duration_frames": 81358,
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-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 137617
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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\ No newline at end of file
diff --git a/conversations/conv_021586.json b/conversations/conv_021586.json
deleted file mode 100644
index a4154dbf821494b90acace1e7fd5ad1ecfbdc746..0000000000000000000000000000000000000000
--- a/conversations/conv_021586.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.55921724577276,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4767-66411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4767-66411.flac |",
-      "real_speaker_id": "4767",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-59414.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4767-66411.flac |",
-      "real_speaker_id": "4767",
-      "position_frames": 101155
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration_frames": 61155,
-      "overlap": false,
-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 77656
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.5901598387256137,
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-      "utterance_id": "4767-66411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4767-66411.flac |",
-      "real_speaker_id": "4767",
-      "position_frames": 188462
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-    {
-      "event_class": "cough",
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-      "start_time": 16.88538148888603,
-      "speaker_id": "2514"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021587.json b/conversations/conv_021587.json
deleted file mode 100644
index 51173c27c167e9a1c846d8e83ab492dcbfc7fd1e..0000000000000000000000000000000000000000
--- a/conversations/conv_021587.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "93-126208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-126208.flac |",
-      "real_speaker_id": "93",
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
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-    {
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-      "utterance_id": "978-125137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-125137.flac |",
-      "real_speaker_id": "978",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "978-132494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-132494.flac |",
-      "real_speaker_id": "978",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "93",
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-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "978",
-      "position_frames": 61674
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.70977108413934,
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-      "utterance_id": "5808-54425",
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-      "real_speaker_id": "5808",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021590.json b/conversations/conv_021590.json
deleted file mode 100644
index 26f306a822973324ff42cdc5851904c0937e3056..0000000000000000000000000000000000000000
--- a/conversations/conv_021590.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "3982-182255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-182255.flac |",
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-    {
-      "segment_id": "seg0001",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-123202.flac |",
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-      "speaker_id": 2,
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-      "utterance_id": "317-127219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-127219.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 58651
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3982/laugh/0062.wav",
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-      "speaker_id": "3982"
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 0.6814338298420384,
-      "start_time": 14.578295057076756,
-      "speaker_id": "3982"
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-      "start_time": 15.444628187063454,
-      "speaker_id": "317"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3982/laugh/0015.wav",
-      "duration": 1.1632433044982466,
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-      "speaker_id": "3982"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/317/laugh/0016.wav",
-      "duration": 0.5675477230001758,
-      "start_time": 28.324510883132575,
-      "speaker_id": "317"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021601.json b/conversations/conv_021601.json
deleted file mode 100644
index 4b2248df38a6556d76e5873f247a8a8f19e1b647..0000000000000000000000000000000000000000
--- a/conversations/conv_021601.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2299-6525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.5655113836210965,
-      "end_time": 10.667333342770357,
-      "duration": 4.101821959149261,
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-      "overlap": false,
-      "utterance_id": "6391-65553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
-      "real_speaker_id": "6391",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "2299-6525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 95122
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
-      "real_speaker_id": "6391",
-      "position_frames": 65629
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2299-6524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6524.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.48,
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-    {
-      "event_class": "laugh",
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-      "start_time": 31.242546339158604,
-      "speaker_id": "2299"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021606.json b/conversations/conv_021606.json
deleted file mode 100644
index d8366f0f9cbe21f4b220bf40fb679b4a6c951e87..0000000000000000000000000000000000000000
--- a/conversations/conv_021606.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2234-64159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64159.flac |",
-      "real_speaker_id": "2234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64159.flac |",
-      "real_speaker_id": "2234",
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-      "overlap": false,
-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "6407-66985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66985.flac |",
-      "real_speaker_id": "6407",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2234-64131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64131.flac |",
-      "real_speaker_id": "2234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.796329457401356,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "6407-66983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66983.flac |",
-      "real_speaker_id": "6407",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6407/laugh/0093.wav",
-      "duration": 1.36,
-      "start_time": 21.6450415636336,
-      "speaker_id": "6407"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "start_time": 24.150649622088746,
-      "speaker_id": "6407"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021616.json b/conversations/conv_021616.json
deleted file mode 100644
index 68ed43c20394f7bd33489016ad26bcd4d88279ac..0000000000000000000000000000000000000000
--- a/conversations/conv_021616.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2143-145731.flac |",
-      "real_speaker_id": "2143",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
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-      "position_frames": 102778
-    },
-    {
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-    {
-      "segment_id": "seg0004",
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-    {
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2143/laugh/0079.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7078/laugh/0035.wav",
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-      "start_time": 31.007761204963582,
-      "speaker_id": "7078"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021617.json b/conversations/conv_021617.json
deleted file mode 100644
index aa0153414596274db5b9391d7838e1a17950d0d1..0000000000000000000000000000000000000000
--- a/conversations/conv_021617.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.045426476196762,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-6540.flac |",
-      "real_speaker_id": "4017",
-      "position_frames": 0
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-      "utterance_id": "2289-152257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152257.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.674054326553104,
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-      "duration": 4.521478852551905,
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-      "duration_frames": 72343,
-      "overlap": false,
-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 50277
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.33320484741321,
-      "end_time": 27.890794053613277,
-      "duration": 3.5575892062000687,
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-      "duration_frames": 56921,
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-      "utterance_id": "2289-152253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152253.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.108680391450694,
-      "end_time": 32.0,
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-      "utterance_id": "4017-231846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-231846.flac |",
-      "real_speaker_id": "4017",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021621.json b/conversations/conv_021621.json
deleted file mode 100644
index 2929e3707021e2df6e2a4903093de15ab5e1370e..0000000000000000000000000000000000000000
--- a/conversations/conv_021621.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7228-98227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98227.flac |",
-      "real_speaker_id": "7228",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-170151.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-170151.flac |",
-      "real_speaker_id": "2196",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2196-170379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-170379.flac |",
-      "real_speaker_id": "2196",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021637.json b/conversations/conv_021637.json
deleted file mode 100644
index dd59ada430c42147740c7b33dc3466ebfcfba88e..0000000000000000000000000000000000000000
--- a/conversations/conv_021637.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5172-29468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 0
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-      "position_frames": 0
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-    {
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-    {
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-      "speaker_id": "5172"
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-}
\ No newline at end of file
diff --git a/conversations/conv_021640.json b/conversations/conv_021640.json
deleted file mode 100644
index e20b6d187b9b12f71719a8f3ff4ab5593eca195b..0000000000000000000000000000000000000000
--- a/conversations/conv_021640.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8494-244431",
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-      "real_speaker_id": "8494",
-      "position_frames": 60412
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 12.328736112153427
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
-      "duration": 4.629622488510396,
-      "start_time": 10.641940188944089
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_1.wav",
-      "duration": 4.8547526801182554,
-      "start_time": 26.325511037341606
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6962/laugh/0002.wav",
-      "duration": 1.26,
-      "start_time": 11.044187715408112,
-      "speaker_id": "6962"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8494/cough/0093.wav",
-      "duration": 0.41521229486230565,
-      "start_time": 10.575007017152608,
-      "speaker_id": "8494"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021656.json b/conversations/conv_021656.json
deleted file mode 100644
index 5e60a9f4a2195d4ae8d573e598d1ce1cc87fd660..0000000000000000000000000000000000000000
--- a/conversations/conv_021656.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.648753790101505,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.96824305849593,
-      "duration": 5.96824305849593,
-      "start_frame": 0,
-      "duration_frames": 95491,
-      "overlap": false,
-      "utterance_id": "7061-85640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-85640.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.682233218394147,
-      "end_time": 12.371410573648653,
-      "duration": 4.689177355254505,
-      "start_frame": 122915,
-      "duration_frames": 75026,
-      "overlap": false,
-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.663894025436756,
-      "end_time": 19.526068517485182,
-      "duration": 6.862174492048426,
-      "start_frame": 202622,
-      "duration_frames": 109794,
-      "overlap": true,
-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 75026
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.975806560566248,
-      "end_time": 25.548305087132995,
-      "duration": 4.572498526566747,
-      "start_frame": 335612,
-      "duration_frames": 73159,
-      "overlap": false,
-      "utterance_id": "163-121908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.930860522072628,
-      "end_time": 31.648753790101505,
-      "duration": 5.717893268028877,
-      "start_frame": 414893,
-      "duration_frames": 91486,
-      "overlap": false,
-      "utterance_id": "7061-85635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-85635.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
-      "start_time": 3.8014857429066184
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_8.wav",
-      "duration": 0.23709750566893423,
-      "start_time": 19.380245585853725
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7061/cough/0076.wav",
-      "duration": 1.2923301123095332,
-      "start_time": 6.113693016710714,
-      "speaker_id": "7061"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021660.json b/conversations/conv_021660.json
deleted file mode 100644
index b0ece7ddc9ec09fbba308e08002ebccec389c2e0..0000000000000000000000000000000000000000
--- a/conversations/conv_021660.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.657597307547912,
-      "duration": 4.657597307547912,
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-      "duration_frames": 74521,
-      "overlap": false,
-      "utterance_id": "5460-24509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-24509.flac |",
-      "real_speaker_id": "5460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.14760157171562,
-      "end_time": 12.262023791651853,
-      "duration": 6.114422219936234,
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-      "overlap": false,
-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.965702332350624,
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-      "duration": 3.2293106694037244,
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-      "overlap": false,
-      "utterance_id": "5460-18031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-18031.flac |",
-      "real_speaker_id": "5460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.984540700960256,
-      "end_time": 20.817499377279823,
-      "duration": 3.8329586763195667,
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-      "duration_frames": 61327,
-      "overlap": false,
-      "utterance_id": "3615-14677",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14677.flac |",
-      "real_speaker_id": "3615",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.394341201822915,
-      "end_time": 27.134915984275963,
-      "duration": 5.740574782453048,
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-      "overlap": false,
-      "utterance_id": "5460-18031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-18031.flac |",
-      "real_speaker_id": "5460",
-      "position_frames": 51668
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.64837452586878,
-      "end_time": 32.0,
-      "duration": 4.351625474131222,
-      "start_frame": 442373,
-      "duration_frames": 69626,
-      "overlap": false,
-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 97830
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5460/laugh/0151.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "5460"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5460/cough/0105.wav",
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-      "speaker_id": "5460"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3615/laugh/0059.wav",
-      "duration": 1.5,
-      "start_time": 15.192893668545343,
-      "speaker_id": "3615"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5460/cough/0134.wav",
-      "duration": 1.005022967673515,
-      "start_time": 24.178921113406506,
-      "speaker_id": "5460"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/173/cough/0024.wav",
-      "duration": 1.0239440465707859,
-      "start_time": 26.608979572292757,
-      "speaker_id": "173"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021676.json b/conversations/conv_021676.json
deleted file mode 100644
index 00ea8ff7ea16f2ebe3f351efa2206b31eb5d7f78..0000000000000000000000000000000000000000
--- a/conversations/conv_021676.json
+++ /dev/null
@@ -1,180 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.395159912828064,
-      "duration": 5.395159912828064,
-      "start_frame": 0,
-      "duration_frames": 86322,
-      "overlap": false,
-      "utterance_id": "4071-176278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-176278.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.9435802193169485,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "5487-4873",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-4873.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.813558209290044,
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-      "duration_frames": 60776,
-      "overlap": false,
-      "utterance_id": "4071-176278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-176278.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 86322
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5487-41940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-41940.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "4071-176278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-176278.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 147098
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-41940.flac |",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5487/laugh/0006.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 30.07564386539479,
-      "speaker_id": "4071"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4071/cough/0111.wav",
-      "duration": 1.2070068881091947,
-      "start_time": 30.027612915524923,
-      "speaker_id": "4071"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5487/laugh/0000.wav",
-      "duration": 1.24,
-      "start_time": 28.746519368318424,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5487/cough/0090.wav",
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-      "speaker_id": "5487"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021683.json b/conversations/conv_021683.json
deleted file mode 100644
index 7a15143c8cebbe82b6a1005eee79a62fc67c5207..0000000000000000000000000000000000000000
--- a/conversations/conv_021683.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.4871683698227285,
-      "duration": 5.4871683698227285,
-      "start_frame": 0,
-      "duration_frames": 87794,
-      "overlap": false,
-      "utterance_id": "6064-300880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-300880.flac |",
-      "real_speaker_id": "6064",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.142152110754086,
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-      "utterance_id": "8087-118174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118174.flac |",
-      "real_speaker_id": "8087",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6064-56168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-56168.flac |",
-      "real_speaker_id": "6064",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.28284810054188,
-      "end_time": 20.90331636110568,
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-      "utterance_id": "8087-118726",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118726.flac |",
-      "real_speaker_id": "8087",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.417408109479993,
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-      "utterance_id": "5860-72190",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5860-72190.flac |",
-      "real_speaker_id": "5860",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8087-118726",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118726.flac |",
-      "real_speaker_id": "8087",
-      "position_frames": 57927
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.8900649484486007,
-      "start_time": 6.525428000846927
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
-      "duration": 0.2440362811791383,
-      "start_time": 25.32056011796055
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8087/laugh/0049.wav",
-      "duration": 1.08,
-      "start_time": 11.698597527611213,
-      "speaker_id": "8087"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021684.json b/conversations/conv_021684.json
deleted file mode 100644
index f80a9b08deb5933fef8a9e3596af4444a5e3d5b6..0000000000000000000000000000000000000000
--- a/conversations/conv_021684.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.30122912604968,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.218284331737829,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3033-138641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3033-138641.flac |",
-      "real_speaker_id": "3033",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.569197565545244,
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-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.799241449085105,
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-      "duration_frames": 96065,
-      "overlap": true,
-      "utterance_id": "3033-130750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3033-130750.flac |",
-      "real_speaker_id": "3033",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.89924394342451,
-      "end_time": 24.907732840103943,
-      "duration": 6.008488896679434,
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-      "duration_frames": 96135,
-      "overlap": false,
-      "utterance_id": "3033-130750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3033-130750.flac |",
-      "real_speaker_id": "3033",
-      "position_frames": 96065
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.0043795953262,
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-      "duration": 5.296849530723481,
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-      "duration_frames": 84749,
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-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 84752
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 1.14,
-      "start_time": 24.728119381153345,
-      "speaker_id": "6157"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_021692.json b/conversations/conv_021692.json
deleted file mode 100644
index 311275ccd1441b46573dd9b450146ce3ac54d7b0..0000000000000000000000000000000000000000
--- a/conversations/conv_021692.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-7235.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
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-      "utterance_id": "7467-261121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "4629-19366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.822272829861085,
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-      "utterance_id": "7467-261121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 103353
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021695.json b/conversations/conv_021695.json
deleted file mode 100644
index 6997d0fabf54a4ad3d41eb2d3678364d6b0a004c..0000000000000000000000000000000000000000
--- a/conversations/conv_021695.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "227-126539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/227-126539.flac |",
-      "real_speaker_id": "227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3665-8587.flac |",
-      "real_speaker_id": "3665",
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-    {
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-      "utterance_id": "227-129974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/227-129974.flac |",
-      "real_speaker_id": "227",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 67975
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "227",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021699.json b/conversations/conv_021699.json
deleted file mode 100644
index 4877eb9c77e2557040e493ba412ccd224649236a..0000000000000000000000000000000000000000
--- a/conversations/conv_021699.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6072-54656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6072-54656.flac |",
-      "real_speaker_id": "6072",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6072-54656.flac |",
-      "real_speaker_id": "6072",
-      "position_frames": 138335
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.74242380394229,
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-      "utterance_id": "1968-145732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
-      "position_frames": 71327
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
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-  "background_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021705.json b/conversations/conv_021705.json
deleted file mode 100644
index 9ac7ca8cc6e091ed5b377f489d24dbe8130121b4..0000000000000000000000000000000000000000
--- a/conversations/conv_021705.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.305601087710606,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.830606882546837,
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-      "utterance_id": "4396-14564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-14564.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.525020009548112,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-33398.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137627.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021709.json b/conversations/conv_021709.json
deleted file mode 100644
index 41ad57773c4b167318fbc9781b8e78b093d75f25..0000000000000000000000000000000000000000
--- a/conversations/conv_021709.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3070-166423",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166423.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
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-      "real_speaker_id": "3070",
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-  "background_events": [
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-      "speaker_id": "7739"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021713.json b/conversations/conv_021713.json
deleted file mode 100644
index 0fe2d9d756e1b90a6f8c0bbd5aa02e96b496ac97..0000000000000000000000000000000000000000
--- a/conversations/conv_021713.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "9022-282357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
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-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "real_speaker_id": "5665",
-      "position_frames": 56883
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "5665"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021725.json b/conversations/conv_021725.json
deleted file mode 100644
index b8297413a13fb66f737e55be31cf046490c57922..0000000000000000000000000000000000000000
--- a/conversations/conv_021725.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.632288644562278,
-      "duration": 6.632288644562278,
-      "start_frame": 0,
-      "duration_frames": 106116,
-      "overlap": false,
-      "utterance_id": "1343-158781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158781.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.9575845063854675,
-      "end_time": 13.884388867667347,
-      "duration": 6.926804361281879,
-      "start_frame": 111321,
-      "duration_frames": 110828,
-      "overlap": false,
-      "utterance_id": "1343-158796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158796.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.503858855645037,
-      "end_time": 18.075020413075435,
-      "duration": 3.571161557430399,
-      "start_frame": 232061,
-      "duration_frames": 57138,
-      "overlap": false,
-      "utterance_id": "4930-20048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20048.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.354739775801136,
-      "end_time": 24.140390040093777,
-      "duration": 5.78565026429264,
-      "start_frame": 293675,
-      "duration_frames": 92570,
-      "overlap": false,
-      "utterance_id": "1343-158781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158781.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 106116
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.214140303864887,
-      "end_time": 30.192684439452393,
-      "duration": 4.978544135587504,
-      "start_frame": 403426,
-      "duration_frames": 79656,
-      "overlap": false,
-      "utterance_id": "1343-139681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-139681.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.74547599138253,
-      "end_time": 32.0,
-      "duration": 1.2545240086174694,
-      "start_frame": 491927,
-      "duration_frames": 20072,
-      "overlap": false,
-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
-      "duration": 12.42830863710015,
-      "start_time": 13.90247640203959
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
-      "duration": 4.743365984972046,
-      "start_time": 21.44765892041956
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
-      "duration": 3.983624752533893,
-      "start_time": 9.088054180220743
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1343/laugh/0091.wav",
-      "duration": 1.4,
-      "start_time": 6.796584915106842,
-      "speaker_id": "1343"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1343/laugh/0063.wav",
-      "duration": 0.8533397642462306,
-      "start_time": 14.033950989601516,
-      "speaker_id": "1343"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4930/cough/0095.wav",
-      "duration": 1.24,
-      "start_time": 16.081851384189342,
-      "speaker_id": "4930"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1343/laugh/0020.wav",
-      "duration": 0.6351151285191742,
-      "start_time": 24.282213992942722,
-      "speaker_id": "1343"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021729.json b/conversations/conv_021729.json
deleted file mode 100644
index d437288ebe8e35f2744e09d00ff5fc0609c3dd8e..0000000000000000000000000000000000000000
--- a/conversations/conv_021729.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.35185265362536,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.330871276238142,
-      "duration": 5.330871276238142,
-      "start_frame": 0,
-      "duration_frames": 85293,
-      "overlap": false,
-      "utterance_id": "3923-181420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-181420.flac |",
-      "real_speaker_id": "3923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.102528563435759,
-      "end_time": 11.608391573679263,
-      "duration": 5.5058630102435036,
-      "start_frame": 97640,
-      "duration_frames": 88093,
-      "overlap": false,
-      "utterance_id": "6009-57639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57639.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.967840221580218,
-      "end_time": 15.586134029901093,
-      "duration": 3.6182938083208738,
-      "start_frame": 191485,
-      "duration_frames": 57892,
-      "overlap": false,
-      "utterance_id": "6724-73991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73991.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.537086829765663,
-      "end_time": 21.499862590300054,
-      "duration": 4.962775760534393,
-      "start_frame": 264593,
-      "duration_frames": 79404,
-      "overlap": false,
-      "utterance_id": "6009-57639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57639.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 88093
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.81906877053669,
-      "end_time": 29.42932956751551,
-      "duration": 6.61026079697882,
-      "start_frame": 365105,
-      "duration_frames": 105764,
-      "overlap": false,
-      "utterance_id": "6009-57639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57639.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 167497
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.960721701194313,
-      "end_time": 31.35185265362536,
-      "duration": 2.3911309524310482,
-      "start_frame": 463371,
-      "duration_frames": 38258,
-      "overlap": true,
-      "utterance_id": "3923-174992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-174992.flac |",
-      "real_speaker_id": "3923",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
-      "duration": 0.8147165532879819,
-      "start_time": 28.759845039017485
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6009/laugh/0014.wav",
-      "duration": 1.32,
-      "start_time": 15.015905650947627,
-      "speaker_id": "6009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021733.json b/conversations/conv_021733.json
deleted file mode 100644
index e514019ce66622fa01a64684447028c03c7b3474..0000000000000000000000000000000000000000
--- a/conversations/conv_021733.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.732987596334894,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.542347846222082,
-      "duration": 5.542347846222082,
-      "start_frame": 0,
-      "duration_frames": 88677,
-      "overlap": false,
-      "utterance_id": "1668-136280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136280.flac |",
-      "real_speaker_id": "1668",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.321519971668852,
-      "end_time": 10.404641187099633,
-      "duration": 4.083121215430781,
-      "start_frame": 101144,
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-      "overlap": false,
-      "utterance_id": "1668-136271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136271.flac |",
-      "real_speaker_id": "1668",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.83560002546422,
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-      "duration": 5.229307234376022,
-      "start_frame": 173369,
-      "duration_frames": 83668,
-      "overlap": false,
-      "utterance_id": "6947-53264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53264.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.618063599420692,
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-      "start_frame": 249889,
-      "duration_frames": 105208,
-      "overlap": true,
-      "utterance_id": "1668-136280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136280.flac |",
-      "real_speaker_id": "1668",
-      "position_frames": 88677
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.05360220716411,
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-      "duration": 6.1634838234055636,
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-      "duration_frames": 98615,
-      "overlap": false,
-      "utterance_id": "6947-53264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53264.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 83668
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.410296000468453,
-      "end_time": 31.732987596334894,
-      "duration": 1.3226915958664414,
-      "start_frame": 486564,
-      "duration_frames": 21163,
-      "overlap": true,
-      "utterance_id": "1668-136280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136280.flac |",
-      "real_speaker_id": "1668",
-      "position_frames": 193885
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
-      "duration": 1.6298817662372476,
-      "start_time": 25.715139833358357
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6947/cough/0138.wav",
-      "duration": 1.2721104030264887,
-      "start_time": 16.1304775118801,
-      "speaker_id": "6947"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1668/laugh/0084.wav",
-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "1668"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021738.json b/conversations/conv_021738.json
deleted file mode 100644
index 74790b4770b2f46451132085a78d43d7ee17f070..0000000000000000000000000000000000000000
--- a/conversations/conv_021738.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.60324074569345,
-      "duration": 5.60324074569345,
-      "start_frame": 0,
-      "duration_frames": 89651,
-      "overlap": false,
-      "utterance_id": "78-369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-369.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.618312039098222,
-      "end_time": 12.26070510003083,
-      "duration": 5.642393060932607,
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-      "duration_frames": 90278,
-      "overlap": false,
-      "utterance_id": "154-124002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-124002.flac |",
-      "real_speaker_id": "154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.155678996407577,
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-      "overlap": false,
-      "utterance_id": "8808-283205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-283205.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.540983986962768,
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-      "duration_frames": 88347,
-      "overlap": true,
-      "utterance_id": "78-368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-368.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.896145497866463,
-      "end_time": 28.59554534523886,
-      "duration": 5.699399847372398,
-      "start_frame": 366338,
-      "duration_frames": 91190,
-      "overlap": true,
-      "utterance_id": "154-293987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-293987.flac |",
-      "real_speaker_id": "154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.98204964190262,
-      "end_time": 32.0,
-      "duration": 2.01795035809738,
-      "start_frame": 479712,
-      "duration_frames": 32287,
-      "overlap": false,
-      "utterance_id": "78-368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-368.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 88347
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
-      "duration": 1.9316601484821607,
-      "start_time": 19.58154412204674
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_021743.json b/conversations/conv_021743.json
deleted file mode 100644
index 182784f26f62a9dfc41826b0516b11749b13623a..0000000000000000000000000000000000000000
--- a/conversations/conv_021743.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.432491364041855,
-      "duration": 5.432491364041855,
-      "start_frame": 0,
-      "duration_frames": 86919,
-      "overlap": false,
-      "utterance_id": "4098-11546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11546.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
-    },
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\ No newline at end of file
diff --git a/conversations/conv_021744.json b/conversations/conv_021744.json
deleted file mode 100644
index d12628a8cbbe1ba12c9bbf477665d658773e87e5..0000000000000000000000000000000000000000
--- a/conversations/conv_021744.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_021748.json b/conversations/conv_021748.json
deleted file mode 100644
index 20f61213a5a9c803d4463833ce4aecc214ff1b0e..0000000000000000000000000000000000000000
--- a/conversations/conv_021748.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_021752.json b/conversations/conv_021752.json
deleted file mode 100644
index 35786d34c72131f04d064eefafb35daafdef00d9..0000000000000000000000000000000000000000
--- a/conversations/conv_021752.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "start_time": 18.56781788930766,
-      "speaker_id": "2971"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/75/laugh/0137.wav",
-      "duration": 1.14,
-      "start_time": 29.84261766414839,
-      "speaker_id": "75"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021753.json b/conversations/conv_021753.json
deleted file mode 100644
index fc9c192d4f41308a3f038579bf2b5673c038b11b..0000000000000000000000000000000000000000
--- a/conversations/conv_021753.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.330032736047308,
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-      "utterance_id": "834-130871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130871.flac |",
-      "real_speaker_id": "834",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.416394847329894,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130870.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.49893852798411,
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-      "overlap": false,
-      "utterance_id": "264-121332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.34975300380563,
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-      "utterance_id": "834-130871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130871.flac |",
-      "real_speaker_id": "834",
-      "position_frames": 69280
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.332541935022764,
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-      "duration": 0.6674580649772359,
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-      "speaker_id": "834"
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-      "event_class": "laugh",
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-      "duration": 1.44,
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-      "event_class": "laugh",
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-      "start_time": 20.794264850654162,
-      "speaker_id": "264"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "2625"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_021764.json b/conversations/conv_021764.json
deleted file mode 100644
index ca27f7cadab71e30c4e6589e55003c2b70245c3d..0000000000000000000000000000000000000000
--- a/conversations/conv_021764.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7278-104730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-104730.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7278",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-157857.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
-      "real_speaker_id": "7011",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_021768.json b/conversations/conv_021768.json
deleted file mode 100644
index 1c74b181ca1105fbcce8401dc3ade00ff91fb734..0000000000000000000000000000000000000000
--- a/conversations/conv_021768.json
+++ /dev/null
@@ -1,186 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.125,
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-      "speaker_id": "1212"
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-      "speaker_id": "6221"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021772.json b/conversations/conv_021772.json
deleted file mode 100644
index 912bb7cd7cdb6f870db3b2b6cd688f41a22ac149..0000000000000000000000000000000000000000
--- a/conversations/conv_021772.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6138-93188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 8.065402531208054,
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.290593785086426,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6054-41610.flac |",
-      "real_speaker_id": "6054",
-      "position_frames": 91371
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.15205407344177,
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 77462
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
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-      "position_frames": 146895
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021779.json b/conversations/conv_021779.json
deleted file mode 100644
index bca31328cddb019aec408cab733769b0fd58c886..0000000000000000000000000000000000000000
--- a/conversations/conv_021779.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5039-1189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1189.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
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-      "real_speaker_id": "5039",
-      "position_frames": 85752
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-      "speaker_id": 1,
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-      "real_speaker_id": "7125",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "7823-103122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7823-103122.flac |",
-      "real_speaker_id": "7823",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.124323501690515,
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-      "overlap": true,
-      "utterance_id": "5039-1188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1188.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.164452624193366,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021780.json b/conversations/conv_021780.json
deleted file mode 100644
index 1efca4ecb68fc01e3463255fc752e5131836a4b4..0000000000000000000000000000000000000000
--- a/conversations/conv_021780.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5636-41795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41795.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "3054",
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-    {
-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-224.flac |",
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021787.json b/conversations/conv_021787.json
deleted file mode 100644
index f4d9b5fd1d4ad940a48a25b24dda94ca41cc4c96..0000000000000000000000000000000000000000
--- a/conversations/conv_021787.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.70333508225382,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3400/laugh/0052.wav",
-      "duration": 1.28,
-      "start_time": 0.4882297198359045,
-      "speaker_id": "3400"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6641/laugh/0002.wav",
-      "duration": 0.6791319221177028,
-      "start_time": 14.097149474574099,
-      "speaker_id": "6641"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021791.json b/conversations/conv_021791.json
deleted file mode 100644
index 1eb714607e203444eea1ec0b3315705c0677a679..0000000000000000000000000000000000000000
--- a/conversations/conv_021791.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.623584204116337,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.2461776934739115,
-      "duration": 6.2461776934739115,
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-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.306159455482812,
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-      "duration_frames": 73798,
-      "overlap": true,
-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.601401579783426,
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-      "duration_frames": 91548,
-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 99938
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.464881095259983,
-      "end_time": 24.394964082801174,
-      "duration": 5.930082987541191,
-      "start_frame": 295438,
-      "duration_frames": 94881,
-      "overlap": false,
-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 73798
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.987211693373943,
-      "end_time": 31.623584204116337,
-      "duration": 6.636372510742394,
-      "start_frame": 399795,
-      "duration_frames": 106181,
-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 191486
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
-      "start_time": 3.090481321126609
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
-      "duration": 2.411609977324263,
-      "start_time": 15.59569124501714
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2100/cough/0117.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2100/cough/0064.wav",
-      "duration": 1.3195280189466856,
-      "start_time": 10.2209450120297,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/839/laugh/0092.wav",
-      "duration": 1.36,
-      "start_time": 19.316351806048935,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2100/laugh/0119.wav",
-      "duration": 1.2865427813251182,
-      "start_time": 23.673412392053677,
-      "speaker_id": "2100"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021796.json b/conversations/conv_021796.json
deleted file mode 100644
index c59329db2f41ab4992363ba46fce54a87928d0dd..0000000000000000000000000000000000000000
--- a/conversations/conv_021796.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.389201277250157,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4034-12475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-12475.flac |",
-      "real_speaker_id": "4034",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
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-      "utterance_id": "3857-182315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182315.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.90300036659355,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
-      "position_frames": 102402
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.726647092836277,
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-      "utterance_id": "3857-182317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182317.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.634468249206048,
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-      "utterance_id": "3857-180923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.108568278320995,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
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-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021800.json b/conversations/conv_021800.json
deleted file mode 100644
index 1827581fe89e69bc820b0483ca368e41af804d18..0000000000000000000000000000000000000000
--- a/conversations/conv_021800.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.58637626670177,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7505-258964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7505-258964.flac |",
-      "real_speaker_id": "7505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.70590673689409,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
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-    {
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-      "real_speaker_id": "7505",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.390424365478736,
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-      "duration_frames": 72445,
-      "overlap": false,
-      "utterance_id": "549-126410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7505-258964",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_021807.json b/conversations/conv_021807.json
deleted file mode 100644
index 7f29e5201d5fb70f52d08a776e26e3df617e738a..0000000000000000000000000000000000000000
--- a/conversations/conv_021807.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6121-8686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6121-8686.flac |",
-      "real_speaker_id": "6121",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": "6121"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021811.json b/conversations/conv_021811.json
deleted file mode 100644
index c6cce6ff186666c395ff1bbd92a5b432f83e639f..0000000000000000000000000000000000000000
--- a/conversations/conv_021811.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.227061757771768,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6773-76039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
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-      "speaker_id": 0,
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-      "utterance_id": "8329-279775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8329-279775.flac |",
-      "real_speaker_id": "8329",
-      "position_frames": 62026
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.476467112460032,
-      "end_time": 21.527650587751857,
-      "duration": 3.0511834752918245,
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-      "utterance_id": "8087-118180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118180.flac |",
-      "real_speaker_id": "8087",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.025462562577964,
-      "end_time": 25.763989844530457,
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-      "overlap": false,
-      "utterance_id": "6773-76039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 124856
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 26.43460602889706,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118174.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021816.json b/conversations/conv_021816.json
deleted file mode 100644
index 0493eb6ca37f5a5118fc970d4e709f192dd3d0cb..0000000000000000000000000000000000000000
--- a/conversations/conv_021816.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.298937784146556,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-145459.flac |",
-      "real_speaker_id": "1868",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-145473.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130728.flac |",
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-      "speaker_id": "830"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021817.json b/conversations/conv_021817.json
deleted file mode 100644
index b0077900bbbd24440168cc12bedf5f92fdb821dd..0000000000000000000000000000000000000000
--- a/conversations/conv_021817.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112057.flac |",
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-      "real_speaker_id": "254",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021820.json b/conversations/conv_021820.json
deleted file mode 100644
index 3fadd788894411f32b86d65ff3be99690f9c4608..0000000000000000000000000000000000000000
--- a/conversations/conv_021820.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_021836.json b/conversations/conv_021836.json
deleted file mode 100644
index db4313a0bc5a80707bb66f52749edecddc76a9c8..0000000000000000000000000000000000000000
--- a/conversations/conv_021836.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-132091.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_021841.json b/conversations/conv_021841.json
deleted file mode 100644
index 0db41a24f6abe194213213205716579229d727f1..0000000000000000000000000000000000000000
--- a/conversations/conv_021841.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "utterance_id": "5340-8685",
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-      "position_frames": 179562
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021846.json b/conversations/conv_021846.json
deleted file mode 100644
index b753fbedced43eb597616b1e9b15a2aca4008ffc..0000000000000000000000000000000000000000
--- a/conversations/conv_021846.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6131-229040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
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-    {
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-      "real_speaker_id": "783",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/783/laugh/0024.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021850.json b/conversations/conv_021850.json
deleted file mode 100644
index 2f9e3e1b3b8cec477f0cfa42d1bd907eade3682b..0000000000000000000000000000000000000000
--- a/conversations/conv_021850.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61803.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8765-295009.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_021857.json b/conversations/conv_021857.json
deleted file mode 100644
index 9ac375f4410f35a385595cf358bbc35a76bca217..0000000000000000000000000000000000000000
--- a/conversations/conv_021857.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.767055305246448,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
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-      "real_speaker_id": "460",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_021861.json b/conversations/conv_021861.json
deleted file mode 100644
index 35dad6c0a72df761ca721b978e855cf121eb4378..0000000000000000000000000000000000000000
--- a/conversations/conv_021861.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "1184",
-      "position_frames": 0
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-      "utterance_id": "1107-133254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133254.flac |",
-      "real_speaker_id": "1107",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_021877.json b/conversations/conv_021877.json
deleted file mode 100644
index 6656a212e4914fd757eeee16e40f7db91df0c1b2..0000000000000000000000000000000000000000
--- a/conversations/conv_021877.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34599.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-155990.flac |",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
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-      "position_frames": 55026
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2002-139469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34601.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "duration": 1.0,
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-      "speaker_id": "2002"
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-}
\ No newline at end of file
diff --git a/conversations/conv_021882.json b/conversations/conv_021882.json
deleted file mode 100644
index b997c4bf9e6dc3664c1cf6a34cc33b4676812ffb..0000000000000000000000000000000000000000
--- a/conversations/conv_021882.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.52712225751686,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 5.79183127754563,
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-      "overlap": false,
-      "utterance_id": "4160-11549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11549.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.07696718473586,
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-      "duration": 5.328558689294652,
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-      "utterance_id": "4160-11550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11550.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.155978791804717,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "4160-11549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11549.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 92669
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
-      "duration": 0.6165759637188208,
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-  "paralinguistic_events": [
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-      "duration": 0.98,
-      "start_time": 12.171820834590225,
-      "speaker_id": "4290"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021883.json b/conversations/conv_021883.json
deleted file mode 100644
index 54c4e2d1e549edd055d08c0381f9f649563b7915..0000000000000000000000000000000000000000
--- a/conversations/conv_021883.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 80540
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 71748
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.969208351371115,
-      "end_time": 26.793619950835446,
-      "duration": 5.82441159946433,
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-      "overlap": false,
-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 164583
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.428626688409167,
-      "start_frame": 441141,
-      "duration_frames": 70858,
-      "overlap": false,
-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 144143
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2696/laugh/0049.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2696/laugh/0059.wav",
-      "duration": 0.5638664243758263,
-      "start_time": 16.807507660164706,
-      "speaker_id": "2696"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021894.json b/conversations/conv_021894.json
deleted file mode 100644
index fb6d497a7f2e5264cd7b43fd27eacffbfbf8203e..0000000000000000000000000000000000000000
--- a/conversations/conv_021894.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
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-      "real_speaker_id": "298",
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-      "real_speaker_id": "1066",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126791.flac |",
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-      "real_speaker_id": "1066",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021898.json b/conversations/conv_021898.json
deleted file mode 100644
index 19f42b0dbbb163887ca93f0f0b601d0a173a7eda..0000000000000000000000000000000000000000
--- a/conversations/conv_021898.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.11065307886543,
-  "num_speakers": 3,
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-    {
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-    {
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_2.wav",
-      "duration": 0.3626530612244898,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8142/laugh/0019.wav",
-      "duration": 0.5521224053683211,
-      "start_time": 5.9220230761881005,
-      "speaker_id": "8142"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4009/cough/0118.wav",
-      "duration": 1.4047073750755878,
-      "start_time": 9.274676084360397,
-      "speaker_id": "4009"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5977/laugh/0123.wav",
-      "duration": 0.9688680835422361,
-      "start_time": 18.02012853770467,
-      "speaker_id": "5977"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5977/laugh/0016.wav",
-      "duration": 1.6136847070086888,
-      "start_time": 26.229220586356668,
-      "speaker_id": "5977"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8142/laugh/0113.wav",
-      "duration": 0.88,
-      "start_time": 27.75461225599921,
-      "speaker_id": "8142"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021903.json b/conversations/conv_021903.json
deleted file mode 100644
index 9689765ffca39b33f54003031709a41ab25048da..0000000000000000000000000000000000000000
--- a/conversations/conv_021903.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.882832934578033,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.20767170659752,
-      "duration": 4.20767170659752,
-      "start_frame": 0,
-      "duration_frames": 67322,
-      "overlap": false,
-      "utterance_id": "797-127182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.991266683067523,
-      "end_time": 8.34534842370468,
-      "duration": 3.354081740637157,
-      "start_frame": 79860,
-      "duration_frames": 53665,
-      "overlap": false,
-      "utterance_id": "8675-283202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-283202.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.874103150915746,
-      "end_time": 14.171457403796401,
-      "duration": 5.297354252880655,
-      "start_frame": 141985,
-      "duration_frames": 84757,
-      "overlap": false,
-      "utterance_id": "2007-149877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-149877.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.54297517776774,
-      "end_time": 21.10020221931017,
-      "duration": 6.557227041542429,
-      "start_frame": 232687,
-      "duration_frames": 104915,
-      "overlap": false,
-      "utterance_id": "797-127183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127183.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.484680612255573,
-      "end_time": 26.52639570702551,
-      "duration": 5.041715094769938,
-      "start_frame": 343754,
-      "duration_frames": 80667,
-      "overlap": false,
-      "utterance_id": "8675-295195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-295195.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.29931659293983,
-      "end_time": 31.882832934578033,
-      "duration": 4.583516341638201,
-      "start_frame": 436789,
-      "duration_frames": 73336,
-      "overlap": false,
-      "utterance_id": "8675-292352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
-      "duration": 2.889757320739994,
-      "start_time": 2.885835075136453
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_021904.json b/conversations/conv_021904.json
deleted file mode 100644
index 11e26a003e1234d824dae4efb3735bd6aa865d55..0000000000000000000000000000000000000000
--- a/conversations/conv_021904.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.341693335870446,
-      "duration": 4.341693335870446,
-      "start_frame": 0,
-      "duration_frames": 69467,
-      "overlap": false,
-      "utterance_id": "4800-73728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73728.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.746208900479605,
-      "end_time": 11.746066812642328,
-      "duration": 6.999857912162723,
-      "start_frame": 75939,
-      "duration_frames": 111997,
-      "overlap": false,
-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.414677759645585,
-      "end_time": 18.863753137411106,
-      "duration": 6.449075377765521,
-      "start_frame": 198634,
-      "duration_frames": 103185,
-      "overlap": false,
-      "utterance_id": "4824-36048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36048.flac |",
-      "real_speaker_id": "4824",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.186015743360866,
-      "end_time": 24.34210943057927,
-      "duration": 5.156093687218404,
-      "start_frame": 306976,
-      "duration_frames": 82497,
-      "overlap": true,
-      "utterance_id": "3221-9174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.95850284187292,
-      "end_time": 29.76675568552556,
-      "duration": 3.8082528436526384,
-      "start_frame": 415336,
-      "duration_frames": 60932,
-      "overlap": false,
-      "utterance_id": "4800-38660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-38660.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.431562394601066,
-      "end_time": 32.0,
-      "duration": 1.568437605398934,
-      "start_frame": 486904,
-      "duration_frames": 25095,
-      "overlap": false,
-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 111997
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-      "start_time": 16.389789447530347
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3221/cough/0066.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4824/cough/0070.wav",
-      "duration": 0.8299575914882766,
-      "start_time": 19.042481180372807,
-      "speaker_id": "4824"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3221/cough/0098.wav",
-      "duration": 0.8400825432629335,
-      "start_time": 24.438388826602903,
-      "speaker_id": "3221"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4800/laugh/0024.wav",
-      "duration": 1.2,
-      "start_time": 29.982534580647613,
-      "speaker_id": "4800"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021908.json b/conversations/conv_021908.json
deleted file mode 100644
index 536e8f5e55c056deec3ff9c17f5e84c21e3cc316..0000000000000000000000000000000000000000
--- a/conversations/conv_021908.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.889480405030115,
-      "duration": 3.889480405030115,
-      "start_frame": 0,
-      "duration_frames": 62231,
-      "overlap": false,
-      "utterance_id": "5604-26987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.464120115611817,
-      "end_time": 10.699653326690957,
-      "duration": 6.23553321107914,
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-      "overlap": false,
-      "utterance_id": "1767-142941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142941.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.30847484724181,
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-      "duration": 5.019467771466214,
-      "start_frame": 180935,
-      "duration_frames": 80311,
-      "overlap": false,
-      "utterance_id": "446-123502",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123502.flac |",
-      "real_speaker_id": "446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.977973091954308,
-      "end_time": 23.056843096272882,
-      "duration": 6.078870004318575,
-      "start_frame": 271647,
-      "duration_frames": 97261,
-      "overlap": false,
-      "utterance_id": "1767-142941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142941.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 99768
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.8630391981298,
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-      "duration": 5.576872427465241,
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-      "duration_frames": 89229,
-      "overlap": true,
-      "utterance_id": "446-123502",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123502.flac |",
-      "real_speaker_id": "446",
-      "position_frames": 80311
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.27016871746203,
-      "end_time": 32.0,
-      "duration": 1.729831282537969,
-      "start_frame": 484322,
-      "duration_frames": 27677,
-      "overlap": false,
-      "utterance_id": "1767-142941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142941.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 197029
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "start_time": 13.096311440976605
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5604/laugh/0030.wav",
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-      "start_time": 0,
-      "speaker_id": "5604"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/446/laugh/0032.wav",
-      "duration": 1.16,
-      "start_time": 13.570148794169,
-      "speaker_id": "446"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1767/cough/0053.wav",
-      "duration": 1.2,
-      "start_time": 15.623471970011066,
-      "speaker_id": "1767"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/446/laugh/0026.wav",
-      "duration": 1.2116119661200888,
-      "start_time": 21.4336378319203,
-      "speaker_id": "446"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021912.json b/conversations/conv_021912.json
deleted file mode 100644
index 3e5fba6eed7c452a6af57672a2b654dadfe04bed..0000000000000000000000000000000000000000
--- a/conversations/conv_021912.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.149438926382714,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.211357965180805,
-      "duration": 5.211357965180805,
-      "start_frame": 0,
-      "duration_frames": 83381,
-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.064794278361449,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "6184-61313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-61313.flac |",
-      "real_speaker_id": "6184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
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-    {
-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.43509329840255,
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-      "utterance_id": "500-125123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 73208
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_1.wav",
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-      "duration": 1.16,
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-      "speaker_id": "1001"
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/500/laugh/0098.wav",
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-      "event_class": "cough",
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-      "duration": 1.1504805435292953,
-      "start_time": 24.113421810903542,
-      "speaker_id": "500"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021915.json b/conversations/conv_021915.json
deleted file mode 100644
index dcf03ccf172b03ebc2a130e5cd9a66d867b24482..0000000000000000000000000000000000000000
--- a/conversations/conv_021915.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4757-1811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.521705292487973,
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-      "utterance_id": "2021-169435",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-169435.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.024450105379607,
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-      "overlap": false,
-      "utterance_id": "4757-1811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 87789
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.98927397861255,
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-      "overlap": false,
-      "utterance_id": "2021-246946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-246946.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.072667521257927,
-      "end_time": 27.53630708142665,
-      "duration": 5.463639560168723,
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-      "duration_frames": 87418,
-      "overlap": true,
-      "utterance_id": "4757-1811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 167776
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.408520015480644,
-      "end_time": 32.0,
-      "duration": 3.5914799845193563,
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-      "utterance_id": "1187-136238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136238.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "2021"
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-}
\ No newline at end of file
diff --git a/conversations/conv_021924.json b/conversations/conv_021924.json
deleted file mode 100644
index d6db41c1988598e17d2b6f77ab4f03326b87d34c..0000000000000000000000000000000000000000
--- a/conversations/conv_021924.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.540576796602913,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5567-22441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22441.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.9698366881402074,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22441.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 51196
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4705-94467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94467.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5164-19197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-19197.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "duration": 5.832044242762787,
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-      "utterance_id": "5567-22441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22441.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 136624
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.800150428839583,
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-      "utterance_id": "4705-16048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-16048.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-    {
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-      "start_time": 30.915196451443766,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021928.json b/conversations/conv_021928.json
deleted file mode 100644
index c110302bb05be49a3daf2d8c0d10ccc3505d7ed9..0000000000000000000000000000000000000000
--- a/conversations/conv_021928.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "4243-187024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-187024.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2532-154838",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-154838.flac |",
-      "real_speaker_id": "2532",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "434-132650",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132650.flac |",
-      "real_speaker_id": "434",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "4243",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "434",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2532/laugh/0090.wav",
-      "duration": 1.24,
-      "start_time": 22.573652157745478,
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-}
\ No newline at end of file
diff --git a/conversations/conv_021929.json b/conversations/conv_021929.json
deleted file mode 100644
index 2dfd6af372fd41889a855720aa53199e3cf5bf83..0000000000000000000000000000000000000000
--- a/conversations/conv_021929.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-38660.flac |",
-      "real_speaker_id": "4800",
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-    {
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-      "real_speaker_id": "6733",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73728.flac |",
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-      "position_frames": 0
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-      "start_time": 26.31696774691235,
-      "speaker_id": "1736"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021932.json b/conversations/conv_021932.json
deleted file mode 100644
index fff7e66132babe90914bb3c25ca81951336d1405..0000000000000000000000000000000000000000
--- a/conversations/conv_021932.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.418305317348366,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.226331383098866,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-132996.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 0
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-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154673.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.961844477281662,
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-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 151318
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154736.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.949159620206792,
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-      "start_time": 29.014653114244116,
-      "speaker_id": "551"
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\ No newline at end of file
diff --git a/conversations/conv_021942.json b/conversations/conv_021942.json
deleted file mode 100644
index e49319b92482ae7b7432ccf6b8bc5da8a80e504d..0000000000000000000000000000000000000000
--- a/conversations/conv_021942.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.710722642568264,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
-      "real_speaker_id": "7125",
-      "position_frames": 0
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-      "real_speaker_id": "7125",
-      "position_frames": 105480
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "7125",
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-      "real_speaker_id": "8421",
-      "position_frames": 79278
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_021945.json b/conversations/conv_021945.json
deleted file mode 100644
index cc62cd3cccfa46002425aade36330550f9e7d93a..0000000000000000000000000000000000000000
--- a/conversations/conv_021945.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "298-126790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126790.flac |",
-      "real_speaker_id": "298",
-      "position_frames": 0
-    },
-    {
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-    {
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 24.176142810313777,
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-      "real_speaker_id": "8382",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "298",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021949.json b/conversations/conv_021949.json
deleted file mode 100644
index 54c4190510b4ad21843bbbfd0582b68000c1c25f..0000000000000000000000000000000000000000
--- a/conversations/conv_021949.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "utterance_id": "8575-290349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290349.flac |",
-      "real_speaker_id": "8575",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_021952.json b/conversations/conv_021952.json
deleted file mode 100644
index 0a839ec5bd50daa10c7334e2ba0cbfdbeebfcf3f..0000000000000000000000000000000000000000
--- a/conversations/conv_021952.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 76848
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.639012891047336,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
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-      "position_frames": 86384
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 30.32,
-      "speaker_id": "811"
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-}
\ No newline at end of file
diff --git a/conversations/conv_021953.json b/conversations/conv_021953.json
deleted file mode 100644
index 98d040da4b98d9ea303f86db5562f89090e77b58..0000000000000000000000000000000000000000
--- a/conversations/conv_021953.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-59288.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "5189",
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_021954.json b/conversations/conv_021954.json
deleted file mode 100644
index c1eaaa3a380d3028751daf0f4938cfcabca2bd18..0000000000000000000000000000000000000000
--- a/conversations/conv_021954.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-285176.flac |",
-      "real_speaker_id": "8576",
-      "position_frames": 0
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-    },
-    {
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-      "position_frames": 165913
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "8576"
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-}
\ No newline at end of file
diff --git a/conversations/conv_021965.json b/conversations/conv_021965.json
deleted file mode 100644
index 76ed1d7ae809895d1a3bda568cabbc400a6aa887..0000000000000000000000000000000000000000
--- a/conversations/conv_021965.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_021969.json b/conversations/conv_021969.json
deleted file mode 100644
index 214f1994b259825e3f569b4f2175e660fe5f830d..0000000000000000000000000000000000000000
--- a/conversations/conv_021969.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_021973.json b/conversations/conv_021973.json
deleted file mode 100644
index a03fab6538a1486a60d5c7ecfad58c886b47cfb7..0000000000000000000000000000000000000000
--- a/conversations/conv_021973.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_021986.json b/conversations/conv_021986.json
deleted file mode 100644
index 9736a9d021e626d74bb6c5bef9f5e2002c8e442e..0000000000000000000000000000000000000000
--- a/conversations/conv_021986.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "speaker_id": "5285"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "2582"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021990.json b/conversations/conv_021990.json
deleted file mode 100644
index e1fceea5ffbeb4c9deff3a66d8f0f4be8e43112e..0000000000000000000000000000000000000000
--- a/conversations/conv_021990.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.634871609185536,
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-      "overlap": false,
-      "utterance_id": "8058-99402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.23296951987861,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50453.flac |",
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-      "position_frames": 0
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-      "start_time": 13.110255248959586,
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-      "duration_frames": 91190,
-      "overlap": false,
-      "utterance_id": "8058-99402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 90157
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.00363697643083,
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-      "duration": 5.869414516480273,
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-      "duration_frames": 93910,
-      "overlap": false,
-      "utterance_id": "458-126290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126290.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.005502140127756,
-      "end_time": 28.960060519571794,
-      "duration": 4.9545583794440375,
-      "start_frame": 384088,
-      "duration_frames": 79272,
-      "overlap": true,
-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.3866627224036,
-      "end_time": 32.0,
-      "duration": 1.6133372775964006,
-      "start_frame": 486186,
-      "duration_frames": 25813,
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-      "utterance_id": "5671-50454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8058/laugh/0063.wav",
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-      "start_time": 5.891610308077845,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8058/cough/0046.wav",
-      "duration": 1.2415580933082362,
-      "start_time": 16.422919989906372,
-      "speaker_id": "8058"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_021991.json b/conversations/conv_021991.json
deleted file mode 100644
index f2b60eb001f4785efc23d492cea5e4bff8f24b24..0000000000000000000000000000000000000000
--- a/conversations/conv_021991.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.286448826377594,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7030-64588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 50035
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 191967
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.278156091601105,
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-      "duration": 0.7218439083988955,
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-      "utterance_id": "7030-64588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 119917
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 7.4377825063522565,
-      "speaker_id": "329"
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-    {
-      "event_class": "laugh",
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-      "start_time": 9.827251822892876,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/283/laugh/0068.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7030/laugh/0056.wav",
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-      "start_time": 31.160088167909173,
-      "speaker_id": "7030"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022001.json b/conversations/conv_022001.json
deleted file mode 100644
index a05253bd89ced94a8cd6d388820bc36d710c1097..0000000000000000000000000000000000000000
--- a/conversations/conv_022001.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4931-28257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28257.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5796-66357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-66357.flac |",
-      "real_speaker_id": "5796",
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-      "overlap": true,
-      "utterance_id": "8050-110238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8050-110238.flac |",
-      "real_speaker_id": "8050",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.967933367660407,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-66357.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 68961
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.656140590550834,
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-      "utterance_id": "8050-110238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8050-110238.flac |",
-      "real_speaker_id": "8050",
-      "position_frames": 108277
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.784443237831756,
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-      "duration": 2.2155567621682444,
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-      "duration_frames": 35448,
-      "overlap": false,
-      "utterance_id": "5796-66357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-66357.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 144772
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 7.162455119581465,
-      "speaker_id": "5796"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5796/laugh/0110.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5796/cough/0149.wav",
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-      "start_time": 30.078328015283628,
-      "speaker_id": "5796"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022006.json b/conversations/conv_022006.json
deleted file mode 100644
index 73c9c9ad0d3b29b5181eca96583f7b6fa76840cf..0000000000000000000000000000000000000000
--- a/conversations/conv_022006.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "489-128340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-128340.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.851383944881173,
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-    {
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-      "utterance_id": "7030-64588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.93124423036467,
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-      "duration": 5.068755769635331,
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-      "overlap": false,
-      "utterance_id": "742-128034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.3549391241557114,
-      "start_time": 15.179295143105124
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_022010.json b/conversations/conv_022010.json
deleted file mode 100644
index e9a753355f68302b5ecfa0396f5f9814ecec076c..0000000000000000000000000000000000000000
--- a/conversations/conv_022010.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.89774506470786,
-      "duration": 4.89774506470786,
-      "start_frame": 0,
-      "duration_frames": 78363,
-      "overlap": false,
-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.099053731529422,
-      "end_time": 10.812087930243225,
-      "duration": 5.713034198713802,
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-      "duration_frames": 91408,
-      "overlap": false,
-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 78363
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 11.13819760292425,
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-      "overlap": false,
-      "utterance_id": "5789-57158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-57158.flac |",
-      "real_speaker_id": "5789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.182838168044732,
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-      "duration": 5.934366761961545,
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-      "duration_frames": 94949,
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-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 169771
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.777890803135428,
-      "end_time": 30.127211507827365,
-      "duration": 6.349320704691937,
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-      "overlap": false,
-      "utterance_id": "5789-57195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-57195.flac |",
-      "real_speaker_id": "5789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.80039256926164,
-      "end_time": 32.0,
-      "duration": 1.1996074307383608,
-      "start_frame": 492806,
-      "duration_frames": 19193,
-      "overlap": false,
-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 264720
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7654/laugh/0058.wav",
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 11.397059631231366,
-      "speaker_id": "5789"
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-    {
-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7654/laugh/0050.wav",
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-      "speaker_id": "7654"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022017.json b/conversations/conv_022017.json
deleted file mode 100644
index afb796f7ec18153112119fed1cda3e7a31a5e54e..0000000000000000000000000000000000000000
--- a/conversations/conv_022017.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.18627936731846,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2481-156738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-156738.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.578440180832224,
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-      "real_speaker_id": "2481",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.604638410939845,
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-      "utterance_id": "8066-290901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-290901.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.902795489734446,
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-      "utterance_id": "8066-290047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-290047.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.804917875428796,
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-      "utterance_id": "5013-31099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5013-31099.flac |",
-      "real_speaker_id": "5013",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 27.61240510966362,
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-      "position_frames": 70273
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022021.json b/conversations/conv_022021.json
deleted file mode 100644
index 814a4b5e6e2e4b1f974a1a791d97e32f8d1aabc0..0000000000000000000000000000000000000000
--- a/conversations/conv_022021.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34506.flac |",
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-      "real_speaker_id": "7702",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.40569115991397,
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-      "utterance_id": "6196-41030",
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-      "segment_id": "seg0005",
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-      "start_time": 30.52,
-      "speaker_id": "7702"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022037.json b/conversations/conv_022037.json
deleted file mode 100644
index 527460f87af4e2db48b2e94798b4450d311016c9..0000000000000000000000000000000000000000
--- a/conversations/conv_022037.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "3032-19361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "7559",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
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-    {
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-      "overlap": false,
-      "utterance_id": "3032-19361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
-      "position_frames": 162678
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.796135296081793,
-      "end_time": 32.0,
-      "duration": 2.2038647039182067,
-      "start_frame": 476738,
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-      "overlap": false,
-      "utterance_id": "7559-96247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 103451
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
-      "duration": 17.075717802222783,
-      "start_time": 3.6894382349779513
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
-      "duration": 0.254421768707483,
-      "start_time": 5.495200467160257
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_022040.json b/conversations/conv_022040.json
deleted file mode 100644
index bfa31a8700290d0b508d66fb4c0684079b852f4a..0000000000000000000000000000000000000000
--- a/conversations/conv_022040.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.696302966846781,
-      "duration": 5.696302966846781,
-      "start_frame": 0,
-      "duration_frames": 91140,
-      "overlap": false,
-      "utterance_id": "8044-84190",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84190.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.5544705784258595,
-      "end_time": 11.562407809538064,
-      "duration": 5.007937231112204,
-      "start_frame": 104871,
-      "duration_frames": 80126,
-      "overlap": false,
-      "utterance_id": "4273-188161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188161.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.838953139769735,
-      "end_time": 15.698236035371902,
-      "duration": 3.859282895602168,
-      "start_frame": 189423,
-      "duration_frames": 61748,
-      "overlap": false,
-      "utterance_id": "3003-12539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-12539.flac |",
-      "real_speaker_id": "3003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.83777429884058,
-      "end_time": 22.00240559306773,
-      "duration": 5.164631294227154,
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-      "duration_frames": 82634,
-      "overlap": false,
-      "utterance_id": "8044-84206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84206.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.50125784014724,
-      "end_time": 27.501427820026226,
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-      "utterance_id": "4273-188164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188164.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.486206425418295,
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-      "duration": 3.5137935745817046,
-      "start_frame": 455779,
-      "duration_frames": 56220,
-      "overlap": false,
-      "utterance_id": "8044-84190",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84190.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 91140
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 16.736699427877266,
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "speaker_id": "3003"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4273/laugh/0030.wav",
-      "duration": 1.4,
-      "start_time": 20.94757045186934,
-      "speaker_id": "4273"
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-    {
-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 27.072359525999975,
-      "speaker_id": "8044"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022047.json b/conversations/conv_022047.json
deleted file mode 100644
index 83153130c629b24319287d992dae6f2baf7cd8fe..0000000000000000000000000000000000000000
--- a/conversations/conv_022047.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "6006-60489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60489.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "6006-60480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60480.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.63828530707857,
-      "end_time": 27.153875299537304,
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-      "overlap": false,
-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 105201
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.77007146905087,
-      "end_time": 32.0,
-      "duration": 4.229928530949131,
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-      "utterance_id": "6006-57831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-    {
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022051.json b/conversations/conv_022051.json
deleted file mode 100644
index 358c1bb1bf993a390b90fe897969d34474930282..0000000000000000000000000000000000000000
--- a/conversations/conv_022051.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.40184178493864,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5781-52135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.671426881336091,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "5781-52134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52134.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.47283707490506,
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-      "duration": 4.3957685235632455,
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-      "utterance_id": "5781-52135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3794.flac |",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022056.json b/conversations/conv_022056.json
deleted file mode 100644
index 96169a8130454b78af275f4aa4f3eb598d914ef1..0000000000000000000000000000000000000000
--- a/conversations/conv_022056.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "737-123448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
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-    {
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "737-123441",
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-    {
-      "segment_id": "seg0003",
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-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_11.wav",
-      "duration": 0.31777777777777777,
-      "start_time": 0.8509211693698036
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/737/laugh/0026.wav",
-      "duration": 0.8183962149412931,
-      "start_time": 15.308169775424957,
-      "speaker_id": "737"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/737/cough/0025.wav",
-      "duration": 0.8431176158777127,
-      "start_time": 30.249086281762033,
-      "speaker_id": "737"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022060.json b/conversations/conv_022060.json
deleted file mode 100644
index d3fa89b0f416fbdd867a2e917f72c0e13c1b27ee..0000000000000000000000000000000000000000
--- a/conversations/conv_022060.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.57121509878788,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.626533583853487,
-      "duration": 6.626533583853487,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "380-129066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.9379598496174015,
-      "end_time": 11.982845182729505,
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-      "start_frame": 111007,
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-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.340550514034073,
-      "end_time": 17.358262589092238,
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-      "start_frame": 197448,
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-      "overlap": false,
-      "utterance_id": "6548-39672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-39672.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.678683240472484,
-      "end_time": 21.620099047811294,
-      "duration": 4.941415807338811,
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-      "duration_frames": 79062,
-      "overlap": true,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 80718
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.04830350953185,
-      "end_time": 26.20220062975328,
-      "duration": 3.153897120221429,
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-      "utterance_id": "380-129066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 106024
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.633800409654256,
-      "end_time": 31.57121509878788,
-      "duration": 4.937414689133625,
-      "start_frame": 426140,
-      "duration_frames": 78998,
-      "overlap": true,
-      "utterance_id": "6548-65924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-65924.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/380/laugh/0012.wav",
-      "duration": 1.0255318613591586,
-      "start_time": 0,
-      "speaker_id": "380"
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-    {
-      "event_class": "cough",
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-      "duration": 1.479900241201764,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/380/cough/0056.wav",
-      "duration": 0.41963751074339917,
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-      "speaker_id": "380"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6548/laugh/0043.wav",
-      "duration": 0.6152784591939271,
-      "start_time": 26.01145451382081,
-      "speaker_id": "6548"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022076.json b/conversations/conv_022076.json
deleted file mode 100644
index e1492567bf4a63a4b02f72501cdaa3b436863df1..0000000000000000000000000000000000000000
--- a/conversations/conv_022076.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.448902742955582,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7226-86964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86964.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.235547744877447,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140041.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5044-30602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30602.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.80709683979367,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140040.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.81011762562847,
-      "end_time": 26.902886496053384,
-      "duration": 4.092768870424914,
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-      "overlap": false,
-      "utterance_id": "7226-86964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86964.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 106029
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "5044-30592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30592.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7226/laugh/0088.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "7226"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7226/laugh/0090.wav",
-      "duration": 0.7035490277910823,
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-      "speaker_id": "7226"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022082.json b/conversations/conv_022082.json
deleted file mode 100644
index fe0a2ae1c74ba535b3f688485150c758bbfbfd89..0000000000000000000000000000000000000000
--- a/conversations/conv_022082.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "5246-5084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-23272.flac |",
-      "real_speaker_id": "4422",
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-      "real_speaker_id": "1049",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1049",
-      "position_frames": 109569
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.128433532259734,
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-      "overlap": true,
-      "utterance_id": "4422-23272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-23272.flac |",
-      "real_speaker_id": "4422",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5246-30101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-30101.flac |",
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-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_022083.json b/conversations/conv_022083.json
deleted file mode 100644
index 089437a1b2cbff13bf08a276585c3b15d70a6916..0000000000000000000000000000000000000000
--- a/conversations/conv_022083.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "3228-4690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2487-162474",
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-      "segment_id": "seg0002",
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-      "utterance_id": "2487-169018",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169018.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.144112715859077,
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-      "utterance_id": "3228-4690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 52577
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2487/laugh/0136.wav",
-      "duration": 1.32,
-      "start_time": 16.696022593976508,
-      "speaker_id": "2487"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2487/laugh/0115.wav",
-      "duration": 1.4,
-      "start_time": 20.644921204144016,
-      "speaker_id": "2487"
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-      "event_class": "cough",
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-      "speaker_id": "2487"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022095.json b/conversations/conv_022095.json
deleted file mode 100644
index 43260baaa415bad637e7e689bb3b209bcdc602f9..0000000000000000000000000000000000000000
--- a/conversations/conv_022095.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.546000598532534,
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-      "duration_frames": 72736,
-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.485927541218283,
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-      "utterance_id": "6065-111797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-111797.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.625345309883485,
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-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 72736
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.805578022936334,
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 87105
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.907170720664617,
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-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 139206
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-      "duration": 1.2,
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-      "speaker_id": "7078"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022099.json b/conversations/conv_022099.json
deleted file mode 100644
index d90c9698b619b5aa55b403b989ff3370addfa622..0000000000000000000000000000000000000000
--- a/conversations/conv_022099.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 5.6694417440388305,
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-      "utterance_id": "1212-14653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-14653.flac |",
-      "real_speaker_id": "1212",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.595007786021153,
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-      "utterance_id": "1031-133220",
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-      "real_speaker_id": "1031",
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-    {
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_022102.json b/conversations/conv_022102.json
deleted file mode 100644
index a11dfc97f6c914682c393160048bc6996a9571c5..0000000000000000000000000000000000000000
--- a/conversations/conv_022102.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121148.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3144",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1363-135842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
-      "real_speaker_id": "1363",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121140.flac |",
-      "real_speaker_id": "22",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_022105.json b/conversations/conv_022105.json
deleted file mode 100644
index 12e45c309e730c1cb10fb6e22215a4fb67f30c50..0000000000000000000000000000000000000000
--- a/conversations/conv_022105.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "846-130985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/846-130985.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4899",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-    {
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32637.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.18291673470292,
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-      "overlap": false,
-      "utterance_id": "846-130985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/846-130985.flac |",
-      "real_speaker_id": "846",
-      "position_frames": 221140
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
-      "duration": 24.74450584393142,
-      "start_time": 6.435330900547659
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
-      "duration": 2.280614130412103,
-      "start_time": 16.504178536560197
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_7.wav",
-      "duration": 1.000907029478458,
-      "start_time": 14.895445114169684
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/846/laugh/0014.wav",
-      "duration": 0.5143499862881957,
-      "start_time": 1.3821068643463177,
-      "speaker_id": "846"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4899/laugh/0092.wav",
-      "duration": 0.5576761089089513,
-      "start_time": 19.96824919274369,
-      "speaker_id": "4899"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/846/laugh/0101.wav",
-      "duration": 1.12,
-      "start_time": 21.597680018803384,
-      "speaker_id": "846"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4899/laugh/0020.wav",
-      "duration": 0.7369805597005106,
-      "start_time": 23.72971198752922,
-      "speaker_id": "4899"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4899/cough/0011.wav",
-      "duration": 1.16,
-      "start_time": 23.14867764709219,
-      "speaker_id": "4899"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022109.json b/conversations/conv_022109.json
deleted file mode 100644
index 238b84d668e5185a1853482178d0d277bec4a44a..0000000000000000000000000000000000000000
--- a/conversations/conv_022109.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3359402419930944,
-      "duration": 3.3359402419930944,
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-      "overlap": false,
-      "utterance_id": "8245-283126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-283126.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.078103976796924,
-      "end_time": 7.136920874106766,
-      "duration": 3.058816897309842,
-      "start_frame": 65249,
-      "duration_frames": 48941,
-      "overlap": false,
-      "utterance_id": "969-134362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134362.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.331009458013601,
-      "end_time": 13.510478854424015,
-      "duration": 6.179469396410415,
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-      "overlap": false,
-      "utterance_id": "1859-145700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145700.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.671233662457293,
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-      "overlap": false,
-      "utterance_id": "8245-274393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-274393.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.362205645513153,
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-      "overlap": false,
-      "utterance_id": "969-134362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134362.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 48941
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.447457890664072,
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-      "duration": 4.966017621407599,
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-      "duration_frames": 79456,
-      "overlap": false,
-      "utterance_id": "8245-283126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-283126.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 53375
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.955687995413335,
-      "end_time": 32.0,
-      "duration": 3.044312004586665,
-      "start_frame": 463291,
-      "duration_frames": 48708,
-      "overlap": false,
-      "utterance_id": "1859-145700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145700.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 98871
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8245/cough/0118.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.36461645649633145,
-      "start_time": 16.98477256776863,
-      "speaker_id": "969"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 25.942764874322823,
-      "speaker_id": "8245"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1859/laugh/0087.wav",
-      "duration": 1.0432491532309003,
-      "start_time": 30.952317494972732,
-      "speaker_id": "1859"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022113.json b/conversations/conv_022113.json
deleted file mode 100644
index 519964bd13310192a54c5a833f90e728784fb1f9..0000000000000000000000000000000000000000
--- a/conversations/conv_022113.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.403687954692117,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.46747394093246,
-      "duration": 4.46747394093246,
-      "start_frame": 0,
-      "duration_frames": 71479,
-      "overlap": false,
-      "utterance_id": "6135-41994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41994.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.0923844006112,
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-      "utterance_id": "4345-7636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7636.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 9.19457508225549,
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-      "duration_frames": 72507,
-      "overlap": false,
-      "utterance_id": "1845-147962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-147962.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.88401559346628,
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-      "utterance_id": "4345-7635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.239372492761944,
-      "end_time": 23.314514418331495,
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-      "utterance_id": "6135-41994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41994.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 71479
-    },
-    {
-      "segment_id": "seg0005",
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-      "end_time": 28.409392663384953,
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-      "start_frame": 391962,
-      "duration_frames": 62587,
-      "overlap": false,
-      "utterance_id": "1845-145088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145088.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.815400932860385,
-      "end_time": 31.403687954692117,
-      "duration": 2.588287021831732,
-      "start_frame": 461046,
-      "duration_frames": 41412,
-      "overlap": true,
-      "utterance_id": "6135-41995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41995.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_15.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 3.489199289049885,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4345/laugh/0051.wav",
-      "duration": 1.3224165561183938,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4345/cough/0022.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1845/laugh/0081.wav",
-      "duration": 1.0216989615845105,
-      "start_time": 8.15154915748764,
-      "speaker_id": "1845"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022114.json b/conversations/conv_022114.json
deleted file mode 100644
index 79f0782822e21b93e4337b399036d3a1964b3abf..0000000000000000000000000000000000000000
--- a/conversations/conv_022114.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "7705-101580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101580.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.525227695112613,
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-      "duration_frames": 98493,
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-      "utterance_id": "8808-283205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-283205.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.216116110874758,
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-      "duration": 6.732451454596383,
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-      "overlap": true,
-      "utterance_id": "8808-295459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-295459.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 21.34463783799236,
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-      "utterance_id": "6104-58843",
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-      "real_speaker_id": "6104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8808-295459",
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-      "real_speaker_id": "8808",
-      "position_frames": 107719
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8808/laugh/0103.wav",
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-      "start_time": 11.516241741472319,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6104/laugh/0087.wav",
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-      "start_time": 20.19303355452876,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8808/laugh/0080.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8808/cough/0077.wav",
-      "duration": 0.9370137846278088,
-      "start_time": 31.06298621537219,
-      "speaker_id": "8808"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022125.json b/conversations/conv_022125.json
deleted file mode 100644
index 1e7013d9ae3ab21bc5e5f424881ab9017005cc8d..0000000000000000000000000000000000000000
--- a/conversations/conv_022125.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.612462279095521,
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-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.562769915233691,
-      "end_time": 13.312036019278043,
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-      "overlap": true,
-      "utterance_id": "7569-102232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 73547
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 81994
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 59988
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 145497
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "7569"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022128.json b/conversations/conv_022128.json
deleted file mode 100644
index dc853598474103548c2880f3a6b3e1c4bf9ad552..0000000000000000000000000000000000000000
--- a/conversations/conv_022128.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-126208.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "2133-2148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-2148.flac |",
-      "real_speaker_id": "2133",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16883.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.469737956885787,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-123172.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2133",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_022129.json b/conversations/conv_022129.json
deleted file mode 100644
index 4530566cfe5baa58009ae75fc73cd5869257c8fa..0000000000000000000000000000000000000000
--- a/conversations/conv_022129.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139742.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139741.flac |",
-      "real_speaker_id": "1974",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139741.flac |",
-      "real_speaker_id": "1974",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "6533-399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022133.json b/conversations/conv_022133.json
deleted file mode 100644
index 66a6f3539f1d073a6d6f9c406a89cc81ce6d7909..0000000000000000000000000000000000000000
--- a/conversations/conv_022133.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 99200,
-      "overlap": false,
-      "utterance_id": "792-127527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/792-127527.flac |",
-      "real_speaker_id": "792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4481-17498.flac |",
-      "real_speaker_id": "4481",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.306476967646693,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-180292.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-    {
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-      "speaker_id": "4481"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1633/cough/0132.wav",
-      "duration": 0.5589947299001208,
-      "start_time": 17.615032370351734,
-      "speaker_id": "1633"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/792/laugh/0023.wav",
-      "duration": 1.04,
-      "start_time": 16.74979750899136,
-      "speaker_id": "792"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022143.json b/conversations/conv_022143.json
deleted file mode 100644
index b3377e0e43d57f5fa27ddfd86caf3a9533c5db26..0000000000000000000000000000000000000000
--- a/conversations/conv_022143.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.365115247673364,
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-      "overlap": false,
-      "utterance_id": "6446-40544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40544.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.91831669078255,
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-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.213668305131003,
-      "end_time": 15.784859741971133,
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-      "overlap": true,
-      "utterance_id": "6402-102886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-102886.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.864016177883503,
-      "end_time": 21.86276567418258,
-      "duration": 4.998749496299076,
-      "start_frame": 269824,
-      "duration_frames": 79979,
-      "overlap": false,
-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 60214
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.857348743025106,
-      "end_time": 26.62210260723655,
-      "duration": 3.764753864211442,
-      "start_frame": 365717,
-      "duration_frames": 60236,
-      "overlap": false,
-      "utterance_id": "6446-57416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.160048407990487,
-      "end_time": 32.0,
-      "duration": 4.839951592009513,
-      "start_frame": 434560,
-      "duration_frames": 77439,
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-      "utterance_id": "6446-40544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40544.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 101841
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6446/laugh/0103.wav",
-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "6446"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022144.json b/conversations/conv_022144.json
deleted file mode 100644
index 739e8769bda3a789045c046169bad507c5f79bb3..0000000000000000000000000000000000000000
--- a/conversations/conv_022144.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2198-133546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-133546.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258965.flac |",
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-      "utterance_id": "6406-89940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-89940.flac |",
-      "real_speaker_id": "6406",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-120275.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.93870854459451,
-      "end_time": 29.508504514177115,
-      "duration": 5.569795969582608,
-      "start_frame": 383019,
-      "duration_frames": 89116,
-      "overlap": true,
-      "utterance_id": "6406-89940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-89940.flac |",
-      "real_speaker_id": "6406",
-      "position_frames": 105443
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.708937623117976,
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-      "duration": 1.2910623768820244,
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-      "overlap": false,
-      "utterance_id": "7177-258977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258977.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-    {
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-      "speaker_id": "7177"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022148.json b/conversations/conv_022148.json
deleted file mode 100644
index 6cfa789f436ff716a6d2c0efd2ababfb5153e96f..0000000000000000000000000000000000000000
--- a/conversations/conv_022148.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3346-158751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-158751.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2067-143536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "580-126947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/580-126947.flac |",
-      "real_speaker_id": "580",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "2067",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "580-126947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/580-126947.flac |",
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-      "position_frames": 51234
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022152.json b/conversations/conv_022152.json
deleted file mode 100644
index 753d3432650bf4df9b49747dc7b71081135ccef9..0000000000000000000000000000000000000000
--- a/conversations/conv_022152.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "614-12876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
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-    },
-    {
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-    {
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-      "speaker_id": "3400"
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\ No newline at end of file
diff --git a/conversations/conv_022155.json b/conversations/conv_022155.json
deleted file mode 100644
index e350ecaa5e3d2ab781eecfebdb021091c230e201..0000000000000000000000000000000000000000
--- a/conversations/conv_022155.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6385-34655.flac |",
-      "real_speaker_id": "6385",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168609.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 75363
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "real_speaker_id": "6385",
-      "position_frames": 82111
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.03363186327082,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_022164.json b/conversations/conv_022164.json
deleted file mode 100644
index efff4f04e75fa0a626ee617032df14e514f2c861..0000000000000000000000000000000000000000
--- a/conversations/conv_022164.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022168.json b/conversations/conv_022168.json
deleted file mode 100644
index d8cb1f4e2c51c628aab9de5e9457e8c4ba1f4f91..0000000000000000000000000000000000000000
--- a/conversations/conv_022168.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_022172.json b/conversations/conv_022172.json
deleted file mode 100644
index aa36136676b9bef3faae9fc659fa45537c11bf99..0000000000000000000000000000000000000000
--- a/conversations/conv_022172.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120277.flac |",
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-      "speaker_id": 1,
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-      "utterance_id": "8396-120281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120281.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.22,
-      "start_time": 29.68708806463254,
-      "speaker_id": "8396"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022180.json b/conversations/conv_022180.json
deleted file mode 100644
index 39e0bb70665cfb1d3c60ff266b0438425e69e3b2..0000000000000000000000000000000000000000
--- a/conversations/conv_022180.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0453431556439696,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1154-134886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134886.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 3.288660185117956,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161972.flac |",
-      "real_speaker_id": "1923",
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-      "utterance_id": "4788-94904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-94904.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.46389570160472,
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-      "utterance_id": "1154-129975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129975.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.179169833661092,
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-      "utterance_id": "1923-161975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161975.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.685380893487878,
-      "end_time": 31.179573676414854,
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-      "duration_frames": 87907,
-      "overlap": false,
-      "utterance_id": "1154-129976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129976.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.48072184213865,
-      "end_time": 32.0,
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-      "utterance_id": "4788-94904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-94904.flac |",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "1923"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022187.json b/conversations/conv_022187.json
deleted file mode 100644
index f63e2ffd2910e02893736a87d4e34f939579bce6..0000000000000000000000000000000000000000
--- a/conversations/conv_022187.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1569-141081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.685690893178105,
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-      "utterance_id": "1569-141081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.24610782728801,
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-      "utterance_id": "6539-66420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66420.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
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-      "utterance_id": "6539-66391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66391.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "1569-141082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141082.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1569/cough/0057.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "1569"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022190.json b/conversations/conv_022190.json
deleted file mode 100644
index 2236eefdb16e0d25199e9da1654d067ffab756ed..0000000000000000000000000000000000000000
--- a/conversations/conv_022190.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2792-152929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "151",
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-      "real_speaker_id": "3482",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.373132522520546,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration": 3.0922355282505656,
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-      "utterance_id": "2792-152929",
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_022191.json b/conversations/conv_022191.json
deleted file mode 100644
index a6dcfdd97406a0880561e5625f0240db5b9fc832..0000000000000000000000000000000000000000
--- a/conversations/conv_022191.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "4734-220952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220952.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220952.flac |",
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-      "utterance_id": "2911-15045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15045.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4734/laugh/0021.wav",
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-      "duration": 0.72,
-      "start_time": 8.3684414670792,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.1976864187811096,
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-      "speaker_id": "4734"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2911/laugh/0017.wav",
-      "duration": 1.36,
-      "start_time": 29.809497725124338,
-      "speaker_id": "2911"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022200.json b/conversations/conv_022200.json
deleted file mode 100644
index 3b7c9d95790e97621b36913fe68a8d6cf8978cb4..0000000000000000000000000000000000000000
--- a/conversations/conv_022200.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2416-152139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156230.flac |",
-      "real_speaker_id": "2920",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 55235
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156224.flac |",
-      "real_speaker_id": "2920",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "speaker_id": "2416"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022201.json b/conversations/conv_022201.json
deleted file mode 100644
index 7bf6057b815cf4cff77829746dfdb036867abbd3..0000000000000000000000000000000000000000
--- a/conversations/conv_022201.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177784.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
-      "real_speaker_id": "7732",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.015218386168712,
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-      "utterance_id": "7732-107517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
-      "real_speaker_id": "7732",
-      "position_frames": 154395
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3780-177788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177788.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.689308568432043,
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-      "duration": 0.31069143156795676,
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-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022216.json b/conversations/conv_022216.json
deleted file mode 100644
index f9871eaf74d0bb80c07bf282047f00254195f83e..0000000000000000000000000000000000000000
--- a/conversations/conv_022216.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1734-142311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-70988.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-70988.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 65878
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-  "background_events": [
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-      "speaker_id": "6030"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022220.json b/conversations/conv_022220.json
deleted file mode 100644
index 808dccf38945f8953b0aab5c82a5255a709b875a..0000000000000000000000000000000000000000
--- a/conversations/conv_022220.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 5.847381657201308,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 163858
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022236.json b/conversations/conv_022236.json
deleted file mode 100644
index 825c097a705e4d126820dae19f2d7315f2d41baf..0000000000000000000000000000000000000000
--- a/conversations/conv_022236.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1760-143006.flac |",
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-      "real_speaker_id": "1760",
-      "position_frames": 183875
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022241.json b/conversations/conv_022241.json
deleted file mode 100644
index 916b548acc124a36cf83d9e642ea643256d5257b..0000000000000000000000000000000000000000
--- a/conversations/conv_022241.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "start_time": 19.453905584546554,
-      "speaker_id": "6499"
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-      "event_class": "cough",
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-      "duration": 0.5719747381735774,
-      "start_time": 29.126539980548124,
-      "speaker_id": "5772"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022256.json b/conversations/conv_022256.json
deleted file mode 100644
index 38468924794865301f32ba97ec9a6d454b2e05bb..0000000000000000000000000000000000000000
--- a/conversations/conv_022256.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.3985984519874055,
-      "duration": 6.3985984519874055,
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-      "overlap": false,
-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.579576025786522,
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-      "utterance_id": "5671-50453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50453.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.019542531080901,
-      "end_time": 17.77917178398463,
-      "duration": 6.759629252903728,
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-      "overlap": false,
-      "utterance_id": "5671-50453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50453.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 59157
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "end_time": 22.27497664126375,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 102377
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.29094878493286,
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-      "utterance_id": "5671-50454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.94491014317712,
-      "end_time": 32.0,
-      "duration": 3.0550898568228817,
-      "start_frame": 463118,
-      "duration_frames": 48881,
-      "overlap": false,
-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 167681
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
-      "start_time": 6.843482497343692
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7484/laugh/0075.wav",
-      "duration": 1.4,
-      "start_time": 6.532457914710681,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.26,
-      "start_time": 11.783280406893134,
-      "speaker_id": "5671"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7484/laugh/0051.wav",
-      "duration": 0.9296199962792234,
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-      "speaker_id": "7484"
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-    {
-      "event_class": "cough",
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-      "duration": 0.8889210570738679,
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-      "speaker_id": "7484"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022257.json b/conversations/conv_022257.json
deleted file mode 100644
index 0e3b81ebde24fdab43f666f55ccc555a710a8fd5..0000000000000000000000000000000000000000
--- a/conversations/conv_022257.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.704826779592786,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.952967997128349,
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-      "overlap": false,
-      "utterance_id": "7923-111569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111569.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.353988992915088,
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-      "utterance_id": "882-123267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123267.flac |",
-      "real_speaker_id": "882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.66890959040266,
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-      "duration": 4.770251549558997,
-      "start_frame": 218702,
-      "duration_frames": 76324,
-      "overlap": false,
-      "utterance_id": "3294-167597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167597.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.720520689830785,
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-      "utterance_id": "7923-111569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111569.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 111247
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.095377938760066,
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-      "overlap": false,
-      "utterance_id": "882-123268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123268.flac |",
-      "real_speaker_id": "882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.977920520697168,
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-      "duration_frames": 60716,
-      "overlap": true,
-      "utterance_id": "882-123268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123268.flac |",
-      "real_speaker_id": "882",
-      "position_frames": 56004
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.19252110232052,
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-      "duration": 0.5123056772722663,
-      "start_frame": 499080,
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-      "overlap": true,
-      "utterance_id": "7923-111572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111572.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7923/laugh/0120.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 21.475382363282773,
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-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 29.944605623100788,
-      "speaker_id": "7923"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022261.json b/conversations/conv_022261.json
deleted file mode 100644
index ab73e12d73802870871901ac490b39cf0ddb2159..0000000000000000000000000000000000000000
--- a/conversations/conv_022261.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3926-174988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-174988.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.496051091034495,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1050-134119.flac |",
-      "real_speaker_id": "1050",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1050-134120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1050-134120.flac |",
-      "real_speaker_id": "1050",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278206.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.34329730151129,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278206.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 85558
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3926-891",
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-      "real_speaker_id": "3926",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_022277.json b/conversations/conv_022277.json
deleted file mode 100644
index a7000ab79d1dbb38bc4eacb0564a46b172df4ab6..0000000000000000000000000000000000000000
--- a/conversations/conv_022277.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.491278634294822,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1160-134674.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-62021.flac |",
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-      "real_speaker_id": "7777",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-62021.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "speaker_id": "1160"
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-      "speaker_id": "6276"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_022282.json b/conversations/conv_022282.json
deleted file mode 100644
index ac36026c2a2f7d5ae048bdab5a9739c86c2b345b..0000000000000000000000000000000000000000
--- a/conversations/conv_022282.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-26851.flac |",
-      "real_speaker_id": "4463",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-133227.flac |",
-      "real_speaker_id": "224",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102420.flac |",
-      "real_speaker_id": "7511",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-128660.flac |",
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-      "utterance_id": "7511-102419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102419.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.710140025816198,
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-      "duration": 6.289859974183802,
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-      "utterance_id": "224-133227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-133227.flac |",
-      "real_speaker_id": "224",
-      "position_frames": 75593
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "7511"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022285.json b/conversations/conv_022285.json
deleted file mode 100644
index e70f1640196099408c42752dd9e3d2369b89e515..0000000000000000000000000000000000000000
--- a/conversations/conv_022285.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3228-4691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4691.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-110054.flac |",
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-      "real_speaker_id": "3228",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-126495.flac |",
-      "real_speaker_id": "572",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-96582.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4691.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 73151
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.8889610531631,
-      "end_time": 32.0,
-      "duration": 2.1110389468368993,
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-      "overlap": false,
-      "utterance_id": "7982-245691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-245691.flac |",
-      "real_speaker_id": "7982",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
-      "duration": 1.7548299319727891,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022293.json b/conversations/conv_022293.json
deleted file mode 100644
index e7971d54d7f8a85bb757a12de5d2f77a450a9c7f..0000000000000000000000000000000000000000
--- a/conversations/conv_022293.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6346-60781.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "5043",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "7278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 1.7482435576550799,
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-      "utterance_id": "5043-28396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 88161
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022294.json b/conversations/conv_022294.json
deleted file mode 100644
index 8ef69ed3dd3d6a8459bdfff05c1c1156b6fbf14b..0000000000000000000000000000000000000000
--- a/conversations/conv_022294.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.109897153192737,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58196.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "real_speaker_id": "3540",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-      "event_class": "Dishes",
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-      "speaker_id": "6954"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022298.json b/conversations/conv_022298.json
deleted file mode 100644
index 38441ff83b4237922bd12ff68f63e89a0142adb5..0000000000000000000000000000000000000000
--- a/conversations/conv_022298.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.136877037473948,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2748-160985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.618480713610381,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-175415.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_022304.json b/conversations/conv_022304.json
deleted file mode 100644
index aa9ea3cd75b82df3ad4bdf67260f2975d7f18dae..0000000000000000000000000000000000000000
--- a/conversations/conv_022304.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "utterance_id": "7062-96512",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "348",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "3053",
-      "position_frames": 108509
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_022308.json b/conversations/conv_022308.json
deleted file mode 100644
index 904fa88508685eb1ac1e1bd1691c5cbed4253819..0000000000000000000000000000000000000000
--- a/conversations/conv_022308.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1634-141571.flac |",
-      "real_speaker_id": "1634",
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4222-12898",
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-    {
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1634/cough/0052.wav",
-      "duration": 1.2,
-      "start_time": 19.542067975574852,
-      "speaker_id": "1634"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1992/laugh/0004.wav",
-      "duration": 1.16,
-      "start_time": 27.42846089559776,
-      "speaker_id": "1992"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022312.json b/conversations/conv_022312.json
deleted file mode 100644
index e8bebc870376388c2408f31bc7d1996998924107..0000000000000000000000000000000000000000
--- a/conversations/conv_022312.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.496399521487676,
-      "duration": 4.496399521487676,
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-      "overlap": false,
-      "utterance_id": "1681-142301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.8048898038130226,
-      "end_time": 10.978206754405342,
-      "duration": 6.17331695059232,
-      "start_frame": 76878,
-      "duration_frames": 98773,
-      "overlap": false,
-      "utterance_id": "2909-34664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-34664.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.7338899883006,
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-      "duration": 5.62909629279707,
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-      "duration_frames": 90065,
-      "overlap": false,
-      "utterance_id": "1681-142313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142313.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.502850660178968,
-      "end_time": 22.696207791159235,
-      "duration": 5.193357130980267,
-      "start_frame": 280045,
-      "duration_frames": 83093,
-      "overlap": true,
-      "utterance_id": "2909-81524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-81524.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.73724898831165,
-      "end_time": 30.10558339205727,
-      "duration": 6.368334403745619,
-      "start_frame": 379795,
-      "duration_frames": 101893,
-      "overlap": false,
-      "utterance_id": "3650-168636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168636.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.691815104884828,
-      "end_time": 32.0,
-      "duration": 1.308184895115172,
-      "start_frame": 491069,
-      "duration_frames": 20930,
-      "overlap": false,
-      "utterance_id": "1681-142313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142313.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 90065
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.4827372121537303,
-      "start_time": 19.306064386497923
-    },
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_1.wav",
-      "duration": 1.397437641723356,
-      "start_time": 25.224645371364474
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_022313.json b/conversations/conv_022313.json
deleted file mode 100644
index 917bc327c4c04703fc1ae25117b4e397952b9ff1..0000000000000000000000000000000000000000
--- a/conversations/conv_022313.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.59306611308557,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.760605850315695,
-      "duration": 5.760605850315695,
-      "start_frame": 0,
-      "duration_frames": 92169,
-      "overlap": false,
-      "utterance_id": "4396-14564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-14564.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.588860517800997,
-      "end_time": 9.62418397924856,
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-      "utterance_id": "8710-286293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8710-286293.flac |",
-      "real_speaker_id": "8710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.230088812540378,
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-      "duration_frames": 57666,
-      "overlap": false,
-      "utterance_id": "4396-14564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-14564.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 92169
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.57236977947661,
-      "end_time": 19.39800706392115,
-      "duration": 3.8256372844445403,
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-      "duration_frames": 61210,
-      "overlap": false,
-      "utterance_id": "8710-286293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8710-286293.flac |",
-      "real_speaker_id": "8710",
-      "position_frames": 64565
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.20378010528296,
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-      "overlap": false,
-      "utterance_id": "4396-33397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-33397.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.714000205271493,
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-      "duration": 4.879065907814079,
-      "start_frame": 427424,
-      "duration_frames": 78065,
-      "overlap": true,
-      "utterance_id": "4396-33398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-33398.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "start_time": 3.02177342896148
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
-      "duration": 3.249450495843957,
-      "start_time": 28.444842450402252
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8710/laugh/0043.wav",
-      "duration": 0.7987538293701182,
-      "start_time": 9.767251769705977,
-      "speaker_id": "8710"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8710/cough/0076.wav",
-      "duration": 1.1528238365873333,
-      "start_time": 4.259902025637139,
-      "speaker_id": "8710"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4396/laugh/0050.wav",
-      "duration": 0.922827429211631,
-      "start_time": 10.145410141495459,
-      "speaker_id": "4396"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4396/cough/0135.wav",
-      "duration": 1.2012971762162563,
-      "start_time": 15.01777625284329,
-      "speaker_id": "4396"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8710/laugh/0108.wav",
-      "duration": 1.2903471212556044,
-      "start_time": 14.214979243492817,
-      "speaker_id": "8710"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4396/laugh/0014.wav",
-      "duration": 0.6073352554787322,
-      "start_time": 26.718487512647602,
-      "speaker_id": "4396"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022324.json b/conversations/conv_022324.json
deleted file mode 100644
index 56be30308ea0fc6741c46bc6560a9e34d4bbe795..0000000000000000000000000000000000000000
--- a/conversations/conv_022324.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.4998166358031813,
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-      "overlap": false,
-      "utterance_id": "4018-103416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-103416.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.95459973742313,
-      "end_time": 8.543386492378316,
-      "duration": 4.588786754955185,
-      "start_frame": 63273,
-      "duration_frames": 73420,
-      "overlap": false,
-      "utterance_id": "209-4733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/209-4733.flac |",
-      "real_speaker_id": "209",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.694173014205655,
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-      "overlap": false,
-      "utterance_id": "4018-107312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107312.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.288483589006164,
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-      "duration_frames": 60727,
-      "overlap": false,
-      "utterance_id": "4018-107312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107312.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 70689
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.43277851095037,
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-      "utterance_id": "209-157830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/209-157830.flac |",
-      "real_speaker_id": "209",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.659223645407355,
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-      "duration_frames": 71847,
-      "overlap": true,
-      "utterance_id": "4018-103416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-103416.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 55997
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.543537687763532,
-      "end_time": 32.0,
-      "duration": 3.456462312236468,
-      "start_frame": 456696,
-      "duration_frames": 55303,
-      "overlap": false,
-      "utterance_id": "209-4733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/209-4733.flac |",
-      "real_speaker_id": "209",
-      "position_frames": 73420
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 19.99766877886391,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-      "start_time": 23.838699200946785
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4018/laugh/0066.wav",
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-      "speaker_id": "4018"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/209/laugh/0060.wav",
-      "duration": 0.92,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "209"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022328.json b/conversations/conv_022328.json
deleted file mode 100644
index a0064650312a2eefe3ef0cd9663d5fa9eb0377e7..0000000000000000000000000000000000000000
--- a/conversations/conv_022328.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "589-146346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.971809758700823,
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-      "utterance_id": "4592-22178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22178.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.78459533476696,
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-      "duration_frames": 86345,
-      "overlap": true,
-      "utterance_id": "474-134809",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-134809.flac |",
-      "real_speaker_id": "474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.018559392324374,
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-      "position_frames": 75247
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-    {
-      "segment_id": "seg0004",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
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-  "background_events": [],
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4592/laugh/0104.wav",
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-      "event_class": "cough",
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-      "duration": 0.543540217712976,
-      "start_time": 14.470111101402452,
-      "speaker_id": "474"
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-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 26.423098319277457,
-      "speaker_id": "4592"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022332.json b/conversations/conv_022332.json
deleted file mode 100644
index ab4b73c936a6ccbd187e311d23e9d9ad4eb472af..0000000000000000000000000000000000000000
--- a/conversations/conv_022332.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "240-144999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/240-144999.flac |",
-      "real_speaker_id": "240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.991308967209556,
-      "end_time": 11.506374835315956,
-      "duration": 6.515065868106401,
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-      "utterance_id": "7796-269970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7796-269970.flac |",
-      "real_speaker_id": "7796",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "501-125128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.77131516039802,
-      "end_time": 23.70597707388481,
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-      "start_frame": 300341,
-      "duration_frames": 78954,
-      "overlap": false,
-      "utterance_id": "240-160592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/240-160592.flac |",
-      "real_speaker_id": "240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.627270348328302,
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-      "duration": 6.074040582220822,
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-      "overlap": true,
-      "utterance_id": "501-125127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125127.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.791875027052164,
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-      "duration": 1.2081249729478358,
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-      "utterance_id": "7796-269904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7796-269904.flac |",
-      "real_speaker_id": "7796",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.7128693041566094,
-      "start_time": 29.885330075096824,
-      "speaker_id": "501"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022339.json b/conversations/conv_022339.json
deleted file mode 100644
index 0a941a0786a1b4784d98a72455adcfdf03645081..0000000000000000000000000000000000000000
--- a/conversations/conv_022339.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.472289649920631,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6552.flac |",
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-      "overlap": false,
-      "utterance_id": "7095-88484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88484.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.19627754826994,
-      "end_time": 26.644967373732843,
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-      "overlap": false,
-      "utterance_id": "3894-6552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6552.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 100153
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.508067622961395,
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-      "duration_frames": 64089,
-      "overlap": true,
-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 109804
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.04941474401454,
-      "end_time": 32.0,
-      "duration": 0.9505852559854588,
-      "start_frame": 496790,
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-      "overlap": false,
-      "utterance_id": "7095-88484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88484.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 81952
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2971/laugh/0006.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2971/cough/0021.wav",
-      "duration": 0.9777094466519634,
-      "start_time": 30.55894995997447,
-      "speaker_id": "2971"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022344.json b/conversations/conv_022344.json
deleted file mode 100644
index 2b3716171aa71bfbd9a47acad3262c450e125e8f..0000000000000000000000000000000000000000
--- a/conversations/conv_022344.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 64142,
-      "overlap": false,
-      "utterance_id": "2003-143254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.546752773675018,
-      "end_time": 8.565824988111384,
-      "duration": 4.019072214436367,
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-      "duration_frames": 64305,
-      "overlap": false,
-      "utterance_id": "622-128666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128666.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "5893-54390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5893-54390.flac |",
-      "real_speaker_id": "5893",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.427124636209161,
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-      "duration": 3.783742293272934,
-      "start_frame": 230833,
-      "duration_frames": 60539,
-      "overlap": false,
-      "utterance_id": "622-121659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-121659.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.63701523428183,
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-      "duration": 3.3434616628166025,
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-      "duration_frames": 53495,
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-      "utterance_id": "2003-143255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143255.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.66701622248251,
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-      "overlap": false,
-      "utterance_id": "5893-54391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5893-54391.flac |",
-      "real_speaker_id": "5893",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.98897437521406,
-      "end_time": 32.0,
-      "duration": 2.0110256247859404,
-      "start_frame": 479823,
-      "duration_frames": 32176,
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-      "utterance_id": "2003-143255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143255.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 53495
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2003/laugh/0019.wav",
-      "duration": 1.24,
-      "start_time": 4.281812045685338,
-      "speaker_id": "2003"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2003/laugh/0034.wav",
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-      "start_time": 22.105645236351528,
-      "speaker_id": "2003"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2003/laugh/0124.wav",
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-      "start_time": 30.864219556751735,
-      "speaker_id": "2003"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022345.json b/conversations/conv_022345.json
deleted file mode 100644
index 5138d2a39346848a26e5fa6a321371c470749287..0000000000000000000000000000000000000000
--- a/conversations/conv_022345.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.4198165494720483,
-      "duration": 3.4198165494720483,
-      "start_frame": 0,
-      "duration_frames": 54717,
-      "overlap": false,
-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.272981963355208,
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-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "6557-66462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-66462.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.714445973439556,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 54717
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 156531
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 93196
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "speaker_id": "7720"
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-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 14.896757967031483,
-      "speaker_id": "6557"
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-      "event_class": "cough",
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-      "duration": 1.160983017283924,
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-      "speaker_id": "1031"
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-      "event_class": "cough",
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-      "duration": 0.49943450610309553,
-      "start_time": 31.500565493896904,
-      "speaker_id": "7720"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022349.json b/conversations/conv_022349.json
deleted file mode 100644
index da2c335e2e6382f96db0ee8f80a084afd2a4c8cd..0000000000000000000000000000000000000000
--- a/conversations/conv_022349.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.001257375531418,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6065-109178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-109178.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.500129217286972,
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-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 10.334217870105412,
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-      "overlap": true,
-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 80078
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.46787135962911,
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-      "start_frame": 263485,
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-      "overlap": false,
-      "utterance_id": "8324-286682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286682.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.85140198428859,
-      "end_time": 29.285840247018115,
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-      "duration_frames": 102951,
-      "overlap": false,
-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 152453
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.554476674938968,
-      "end_time": 32.0,
-      "duration": 2.445523325061032,
-      "start_frame": 472871,
-      "duration_frames": 39128,
-      "overlap": false,
-      "utterance_id": "8324-286681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286681.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 9.13093857331507,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2577/laugh/0003.wav",
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-      "duration": 1.28,
-      "start_time": 29.346309529348687,
-      "speaker_id": "2577"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022353.json b/conversations/conv_022353.json
deleted file mode 100644
index 8daaaabce0f02846e66d3ccbbeca91de2f3aa2ab..0000000000000000000000000000000000000000
--- a/conversations/conv_022353.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2895-8663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.1496831664120695,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
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-      "position_frames": 0
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-      "utterance_id": "2895-8662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8662.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.910208392558257,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 71809
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.831532686768977,
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-      "utterance_id": "671-131030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 75930
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8087-118180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118180.flac |",
-      "real_speaker_id": "8087",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.54008628610209,
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-      "duration": 1.4599137138979117,
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-      "utterance_id": "671-131040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    }
-  ],
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-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_3.wav",
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-    {
-      "event_class": "Blender",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_022365.json b/conversations/conv_022365.json
deleted file mode 100644
index 745cd1854e2c4036e1731089683e83d41cd7f77e..0000000000000000000000000000000000000000
--- a/conversations/conv_022365.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.368849537539063,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88743.flac |",
-      "real_speaker_id": "7143",
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-      "position_frames": 70134
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-      "segment_id": "seg0003",
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-      "start_time": 17.100941081532536,
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-      "real_speaker_id": "7143",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.310992177590375,
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-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 136647
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2854-51657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51657.flac |",
-      "real_speaker_id": "2854",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3114/cough/0088.wav",
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-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 21.36985834124169,
-      "speaker_id": "7143"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022368.json b/conversations/conv_022368.json
deleted file mode 100644
index e4d0e4e5a7fe3f9007a17e8b8bd7fc38121bed90..0000000000000000000000000000000000000000
--- a/conversations/conv_022368.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.300873717761654,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.454637695738009,
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-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
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-      "utterance_id": "1505-1303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1303.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
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-      "position_frames": 68567
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "2401",
-      "position_frames": 68813
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.084710682164612,
-      "end_time": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1303.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 96870
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "duration": 0.5918140589569161,
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "cough",
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-      "duration": 0.38960566243721306,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.259565483215912,
-      "start_time": 15.45022138391602,
-      "speaker_id": "1505"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6752/laugh/0049.wav",
-      "duration": 1.28,
-      "start_time": 16.837577657128357,
-      "speaker_id": "6752"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1505/laugh/0005.wav",
-      "duration": 0.7110024007037162,
-      "start_time": 31.288997599296284,
-      "speaker_id": "1505"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022369.json b/conversations/conv_022369.json
deleted file mode 100644
index 95abd6bab20b993d88fb2064f285b195ac08c6fb..0000000000000000000000000000000000000000
--- a/conversations/conv_022369.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.373911522993033,
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-      "utterance_id": "8879-300343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300343.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.218039425654269,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-182255.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1765-143010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1765-143010.flac |",
-      "real_speaker_id": "1765",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.19285963042004,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300234.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.70658246107976,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1765-143010.flac |",
-      "real_speaker_id": "1765",
-      "position_frames": 73242
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1765-143010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1765-143010.flac |",
-      "real_speaker_id": "1765",
-      "position_frames": 176181
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1765/laugh/0092.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1765/laugh/0056.wav",
-      "duration": 0.5324382015164084,
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-      "speaker_id": "1765"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022373.json b/conversations/conv_022373.json
deleted file mode 100644
index 3df624fbb58f9e0b829e242573fb19f3a2cac522..0000000000000000000000000000000000000000
--- a/conversations/conv_022373.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.394707279725036,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6147-34607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34607.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-14274.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34607.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 49537
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-14274.flac |",
-      "real_speaker_id": "3003",
-      "position_frames": 75966
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.3979856277219,
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-      "overlap": false,
-      "utterance_id": "6147-34607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34607.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 136046
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-14274.flac |",
-      "real_speaker_id": "3003",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6147/laugh/0098.wav",
-      "duration": 1.36,
-      "start_time": 22.755426681197353,
-      "speaker_id": "6147"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022378.json b/conversations/conv_022378.json
deleted file mode 100644
index e96a6a142551522a889bb18c19b44888997ddddd..0000000000000000000000000000000000000000
--- a/conversations/conv_022378.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.229410442755572,
-  "num_speakers": 3,
-  "overlap_rate": 0.6666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3192-4910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4910.flac |",
-      "real_speaker_id": "3192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.847791097926074,
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-      "utterance_id": "5672-88363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88363.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 95715,
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-      "utterance_id": "5672-88363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88363.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 81112
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "3192-4910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4910.flac |",
-      "real_speaker_id": "3192",
-      "position_frames": 83781
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.61556802807735,
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-      "utterance_id": "5672-88363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88363.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 176827
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "3192"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022381.json b/conversations/conv_022381.json
deleted file mode 100644
index 499e293509039dc67fa98d98d388de34218ae334..0000000000000000000000000000000000000000
--- a/conversations/conv_022381.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.809491286202597,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "982-133222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/982-133222.flac |",
-      "real_speaker_id": "982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.275612178986783,
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-      "utterance_id": "836-131106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-131106.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_022386.json b/conversations/conv_022386.json
deleted file mode 100644
index b58480b8d6ca966c60040c526e1099028320d1c3..0000000000000000000000000000000000000000
--- a/conversations/conv_022386.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_022387.json b/conversations/conv_022387.json
deleted file mode 100644
index 06d2a1a3c1945f7a8bb57e537c0ad71252705b2a..0000000000000000000000000000000000000000
--- a/conversations/conv_022387.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "3852",
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-      "utterance_id": "1849-138063",
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022390.json b/conversations/conv_022390.json
deleted file mode 100644
index eac8c6e7e8f8a27dde952e0627d25aea0c659f4c..0000000000000000000000000000000000000000
--- a/conversations/conv_022390.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "5784"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 21.446278962407483,
-      "speaker_id": "4352"
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 22.062732367861845,
-      "speaker_id": "4310"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022397.json b/conversations/conv_022397.json
deleted file mode 100644
index ed5b2b094b1631d3c2383ee8c77748c0f05fb41c..0000000000000000000000000000000000000000
--- a/conversations/conv_022397.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.807700148287964,
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-      "utterance_id": "7939-120318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120318.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.3472880013891215,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.172021598699772,
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-      "utterance_id": "7939-120325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120325.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.753315128377306,
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-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 50596
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.065928347809727,
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-      "duration_frames": 61142,
-      "overlap": false,
-      "utterance_id": "7939-120330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120330.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.137732500804617,
-      "end_time": 28.993979728570782,
-      "duration": 3.8562472277661635,
-      "start_frame": 402203,
-      "duration_frames": 61699,
-      "overlap": false,
-      "utterance_id": "5181-2488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2488.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.58613348334802,
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-      "utterance_id": "7939-120330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120330.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 61142
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 13.366284721109038,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7939/cough/0050.wav",
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-      "speaker_id": "7939"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022401.json b/conversations/conv_022401.json
deleted file mode 100644
index 07965cc8c9a6e35f78e1a0b732f576ab46f5a265..0000000000000000000000000000000000000000
--- a/conversations/conv_022401.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.57794411968221,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 59051
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 49135
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 135461
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "real_speaker_id": "5867",
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-  "background_events": [
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-      "event_class": "Blender",
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-    {
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-      "speaker_id": "5867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022406.json b/conversations/conv_022406.json
deleted file mode 100644
index 2b5080bf6fae3cbe370815533bcde4e14344dca3..0000000000000000000000000000000000000000
--- a/conversations/conv_022406.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.272888260460622,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4511-45511.flac |",
-      "real_speaker_id": "4511",
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-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022410.json b/conversations/conv_022410.json
deleted file mode 100644
index e245adeaccc17b3afded026a236e1741e075e7cd..0000000000000000000000000000000000000000
--- a/conversations/conv_022410.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.01402917048141,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139225.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022417.json b/conversations/conv_022417.json
deleted file mode 100644
index e71d060f0ee176fde3859449684bebb51fd7fe19..0000000000000000000000000000000000000000
--- a/conversations/conv_022417.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.45524783464769,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8444-281329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5293-82020.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157946.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 109368
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5293-82020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5293-82020.flac |",
-      "real_speaker_id": "5293",
-      "position_frames": 89619
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.075988143366565,
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-      "duration_frames": 38068,
-      "overlap": true,
-      "utterance_id": "8444-281329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 179462
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "8444"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022426.json b/conversations/conv_022426.json
deleted file mode 100644
index 7ef39a2dc67255585bc9712d4491b5ae117d22cc..0000000000000000000000000000000000000000
--- a/conversations/conv_022426.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6848-252323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6848-252323.flac |",
-      "real_speaker_id": "6848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.243165283813573,
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-      "utterance_id": "2270-156683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-156683.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
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-      "utterance_id": "1316-132800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132800.flac |",
-      "real_speaker_id": "1316",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3545.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "6848-76049",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6848-76049.flac |",
-      "real_speaker_id": "6848",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.068850856920417,
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-      "duration": 3.9311491430795833,
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-      "duration_frames": 62898,
-      "overlap": false,
-      "utterance_id": "2270-3547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3547.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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-  "paralinguistic_events": [
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-      "start_time": 26.029264372871452,
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-      "speaker_id": "6848"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2270/laugh/0058.wav",
-      "duration": 1.24,
-      "start_time": 26.64911902765229,
-      "speaker_id": "2270"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022430.json b/conversations/conv_022430.json
deleted file mode 100644
index 473a7aee290bedbc9d35b0bc38fff68e12a56c0f..0000000000000000000000000000000000000000
--- a/conversations/conv_022430.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
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-      "overlap": false,
-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "4017-231846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-231846.flac |",
-      "real_speaker_id": "4017",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-231846.flac |",
-      "real_speaker_id": "4017",
-      "position_frames": 78822
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.329826029524003,
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-      "utterance_id": "4463-707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-707.flac |",
-      "real_speaker_id": "4463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.967095500584325,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-16807.flac |",
-      "real_speaker_id": "4463",
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-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.08732621632879,
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-      "duration": 0.9126737836712095,
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-      "utterance_id": "4017-6540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-6540.flac |",
-      "real_speaker_id": "4017",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "839"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4017/laugh/0022.wav",
-      "duration": 1.16,
-      "start_time": 15.39757465304605,
-      "speaker_id": "4017"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4463/cough/0104.wav",
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-      "speaker_id": "839"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022440.json b/conversations/conv_022440.json
deleted file mode 100644
index c8cd49b48a39f14b9c416f332ec2af5409bd55b6..0000000000000000000000000000000000000000
--- a/conversations/conv_022440.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "8500-258286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258286.flac |",
-      "real_speaker_id": "8500",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.002623318014224,
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-      "segment_id": "seg0006",
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-      "real_speaker_id": "7492",
-      "position_frames": 51828
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-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.32,
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-      "speaker_id": "7492"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022447.json b/conversations/conv_022447.json
deleted file mode 100644
index eef8122dc3e79f01b3e1d1431ae688bd0882a9c9..0000000000000000000000000000000000000000
--- a/conversations/conv_022447.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.4904506256148,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "413-22436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22436.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4731-95875.flac |",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124146.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124147.flac |",
-      "real_speaker_id": "322",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_022451.json b/conversations/conv_022451.json
deleted file mode 100644
index 623ffd83942a716f24a1f6609dda75a9351ec7b8..0000000000000000000000000000000000000000
--- a/conversations/conv_022451.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5287-39165.flac |",
-      "real_speaker_id": "5287",
-      "position_frames": 0
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-      "real_speaker_id": "6269",
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-      "real_speaker_id": "5287",
-      "position_frames": 80384
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66185.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 86022
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "5287-39165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5287-39165.flac |",
-      "real_speaker_id": "5287",
-      "position_frames": 157752
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022456.json b/conversations/conv_022456.json
deleted file mode 100644
index b0e73164ed9dedba6590e006229fb8b34ba81336..0000000000000000000000000000000000000000
--- a/conversations/conv_022456.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "utterance_id": "7800-283492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283492.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
-    },
-    {
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-      "overlap": false,
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-      "real_speaker_id": "7800",
-      "position_frames": 95341
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.68642632206998,
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-      "utterance_id": "46-128001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.3331996429661,
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-      "utterance_id": "7800-283478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283478.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 28.975878345624444,
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-      "duration": 3.0241216543755556,
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-      "utterance_id": "46-128001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 69754
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-  "paralinguistic_events": [
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-    {
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-      "speaker_id": "7800"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022467.json b/conversations/conv_022467.json
deleted file mode 100644
index 4cd327e17dbfc68df3d7e16f62ec6c4339762003..0000000000000000000000000000000000000000
--- a/conversations/conv_022467.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5894-64095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64095.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022471.json b/conversations/conv_022471.json
deleted file mode 100644
index 6a730d4b919f90105b88ce9c94b267ff8412ceb9..0000000000000000000000000000000000000000
--- a/conversations/conv_022471.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-133263.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_022484.json b/conversations/conv_022484.json
deleted file mode 100644
index 97c7c8730929481e2a2b144fd0fcc26fdbcc8f08..0000000000000000000000000000000000000000
--- a/conversations/conv_022484.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
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-}
\ No newline at end of file
diff --git a/conversations/conv_022485.json b/conversations/conv_022485.json
deleted file mode 100644
index cc00fb74817337e05627b4f91ba9248aaefce719..0000000000000000000000000000000000000000
--- a/conversations/conv_022485.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8705/laugh/0089.wav",
-      "duration": 1.1158701784755838,
-      "start_time": 29.298921146482876,
-      "speaker_id": "8705"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022488.json b/conversations/conv_022488.json
deleted file mode 100644
index 7416441a282d7f906c2e9f75de5dbdd1fbe36704..0000000000000000000000000000000000000000
--- a/conversations/conv_022488.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.5425181041183915,
-      "duration": 6.5425181041183915,
-      "start_frame": 0,
-      "duration_frames": 104680,
-      "overlap": false,
-      "utterance_id": "6106-58196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58196.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.17215577221843,
-      "end_time": 10.224357467994578,
-      "duration": 3.052201695776148,
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-      "duration_frames": 48835,
-      "overlap": false,
-      "utterance_id": "380-129066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.433307389684874,
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-      "duration": 4.431584300932014,
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-      "duration_frames": 70905,
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-      "utterance_id": "380-129066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 48835
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.15363973941065,
-      "end_time": 20.051009473409234,
-      "duration": 4.897369733998583,
-      "start_frame": 242458,
-      "duration_frames": 78357,
-      "overlap": true,
-      "utterance_id": "6106-58196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58196.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 104680
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.424590570738115,
-      "end_time": 25.023584187179626,
-      "duration": 3.598993616441512,
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-      "duration_frames": 57583,
-      "overlap": false,
-      "utterance_id": "380-129066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 119740
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.367061514923883,
-      "end_time": 31.24340058003689,
-      "duration": 5.876339065113007,
-      "start_frame": 405872,
-      "duration_frames": 94021,
-      "overlap": false,
-      "utterance_id": "6106-58195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58195.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.5490074396164,
-      "end_time": 32.0,
-      "duration": 0.45099256038360025,
-      "start_frame": 504784,
-      "duration_frames": 7215,
-      "overlap": false,
-      "utterance_id": "380-129064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129064.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
-      "duration": 3.7829478458049888,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6106/cough/0024.wav",
-      "duration": 1.2,
-      "start_time": 6.690424287708482,
-      "speaker_id": "6106"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6106/cough/0081.wav",
-      "duration": 0.8407790513698965,
-      "start_time": 20.076137063357745,
-      "speaker_id": "6106"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/380/cough/0080.wav",
-      "duration": 0.759395628786359,
-      "start_time": 20.652444526648985,
-      "speaker_id": "380"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022492.json b/conversations/conv_022492.json
deleted file mode 100644
index 27e8b5e2cafb0f35c2cdbd8f2d607e11b9284b52..0000000000000000000000000000000000000000
--- a/conversations/conv_022492.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.49921896985661,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.109122651691446,
-      "duration": 3.109122651691446,
-      "start_frame": 0,
-      "duration_frames": 49745,
-      "overlap": false,
-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.748943390702765,
-      "end_time": 8.129982294402026,
-      "duration": 4.3810389036992605,
-      "start_frame": 59983,
-      "duration_frames": 70096,
-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.833611556348947,
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-      "utterance_id": "1914-133440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-133440.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.596594173953811,
-      "end_time": 17.59017270014344,
-      "duration": 3.993578526189629,
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-      "overlap": false,
-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 49745
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 17.951825927666295,
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-      "duration": 4.510545574586314,
-      "start_frame": 287229,
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-      "overlap": false,
-      "utterance_id": "7898-273047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7898-273047.flac |",
-      "real_speaker_id": "7898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.380974097467885,
-      "end_time": 28.020897350124926,
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-      "start_frame": 374095,
-      "duration_frames": 74238,
-      "overlap": false,
-      "utterance_id": "7898-273041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7898-273041.flac |",
-      "real_speaker_id": "7898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.03212398174775,
-      "end_time": 31.49921896985661,
-      "duration": 3.4670949881088617,
-      "start_frame": 448513,
-      "duration_frames": 55473,
-      "overlap": true,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 70096
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1914/laugh/0037.wav",
-      "duration": 0.952941355489564,
-      "start_time": 11.206848801776905,
-      "speaker_id": "1914"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1914/laugh/0019.wav",
-      "duration": 1.2,
-      "start_time": 17.85762033286971,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7898/laugh/0003.wav",
-      "duration": 1.36,
-      "start_time": 21.72313566600486,
-      "speaker_id": "7898"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022495.json b/conversations/conv_022495.json
deleted file mode 100644
index 079506cf4cdf90357466e3a1dcd79907c8800f86..0000000000000000000000000000000000000000
--- a/conversations/conv_022495.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "duration_frames": 67553,
-      "overlap": false,
-      "utterance_id": "3857-180923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6126",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "3857-180923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 67553
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.319009703629305,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6126-10992.flac |",
-      "real_speaker_id": "6126",
-      "position_frames": 74814
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "3857",
-      "position_frames": 160663
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.368895880238647,
-      "end_time": 32.0,
-      "duration": 4.631104119761353,
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-      "duration_frames": 74097,
-      "overlap": false,
-      "utterance_id": "6126-10992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6126-10992.flac |",
-      "real_speaker_id": "6126",
-      "position_frames": 137909
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6126/laugh/0081.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6126/laugh/0067.wav",
-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "6126"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6126/cough/0042.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "6126"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022502.json b/conversations/conv_022502.json
deleted file mode 100644
index 053356365eedce350f3c61de10f5ce1caf2679e2..0000000000000000000000000000000000000000
--- a/conversations/conv_022502.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "951-138582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-138582.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "951",
-      "position_frames": 86149
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.072202831324795,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-121903.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-131548.flac |",
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-      "position_frames": 80662
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 25.83735526691648,
-      "speaker_id": "951"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/937/laugh/0137.wav",
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-      "speaker_id": "937"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022505.json b/conversations/conv_022505.json
deleted file mode 100644
index 36b683951e9b542897a712bd7cedfdfc958d92ed..0000000000000000000000000000000000000000
--- a/conversations/conv_022505.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.727743339814062,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275169.flac |",
-      "real_speaker_id": "7848",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.66609866393624,
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-      "overlap": false,
-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 60591
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.904085840311854,
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-      "start_frame": 270465,
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-      "overlap": false,
-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 147647
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.461016624130522,
-      "end_time": 27.779551090504302,
-      "duration": 5.31853446637378,
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-      "overlap": false,
-      "utterance_id": "7848-275129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275129.flac |",
-      "real_speaker_id": "7848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.08360695037088,
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-      "duration": 3.9163930496291215,
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-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 221579
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/525/laugh/0036.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022513.json b/conversations/conv_022513.json
deleted file mode 100644
index 91e5b00d7d21bd02677b26eeb4a6e158021002d1..0000000000000000000000000000000000000000
--- a/conversations/conv_022513.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5914-52088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.922566272281635,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 76340
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4958-11613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
-      "real_speaker_id": "4958",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
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-    {
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-      "speaker_id": "7518"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022514.json b/conversations/conv_022514.json
deleted file mode 100644
index 1f8200211749e2a64e91cf8b7fc65bbe7fea85a7..0000000000000000000000000000000000000000
--- a/conversations/conv_022514.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.652908250759765,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "duration": 3.4594385036740216,
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-      "overlap": false,
-      "utterance_id": "7991-102381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7991-102381.flac |",
-      "real_speaker_id": "7991",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.881466316250707,
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-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.605641056053834,
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-      "utterance_id": "7991-102381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7991-102381.flac |",
-      "real_speaker_id": "7991",
-      "position_frames": 55351
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
-      "real_speaker_id": "8824",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.443594632538137,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7991-102381.flac |",
-      "real_speaker_id": "7991",
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-      "segment_id": "seg0005",
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-      "position_frames": 238975
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7991/laugh/0075.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022518.json b/conversations/conv_022518.json
deleted file mode 100644
index 7933f4c22164892327584705e01d109a989c376e..0000000000000000000000000000000000000000
--- a/conversations/conv_022518.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "5635-44582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5635-44582.flac |",
-      "real_speaker_id": "5635",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3070",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5635-53458",
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-    {
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-    {
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-      "start_frame": 360557,
-      "duration_frames": 76709,
-      "overlap": false,
-      "utterance_id": "3070-166420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166420.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.94200010960524,
-      "end_time": 32.0,
-      "duration": 4.057999890394761,
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-      "overlap": false,
-      "utterance_id": "3798-16981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16981.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
-      "duration": 2.249795918367347,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3070/laugh/0067.wav",
-      "duration": 1.1943804890835579,
-      "start_time": 21.206077428590902,
-      "speaker_id": "3070"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3798/cough/0132.wav",
-      "duration": 1.24,
-      "start_time": 26.564870988844618,
-      "speaker_id": "3798"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022522.json b/conversations/conv_022522.json
deleted file mode 100644
index d9e0b7ec5ce668ad930c4f5d4ff097682f40309b..0000000000000000000000000000000000000000
--- a/conversations/conv_022522.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.768827969794848,
-      "duration": 3.768827969794848,
-      "start_frame": 0,
-      "duration_frames": 60301,
-      "overlap": false,
-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.581377357692549,
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-      "utterance_id": "6701-71402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71402.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.784084049765188,
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-      "overlap": true,
-      "utterance_id": "6227-60173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-60173.flac |",
-      "real_speaker_id": "6227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.76282401100082,
-      "end_time": 17.773430239128697,
-      "duration": 4.010606228127877,
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-      "duration_frames": 64169,
-      "overlap": false,
-      "utterance_id": "6227-36632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-36632.flac |",
-      "real_speaker_id": "6227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 17.939093688831765,
-      "end_time": 23.101675064899624,
-      "duration": 5.162581376067861,
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-      "duration_frames": 82601,
-      "overlap": true,
-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 60301
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.50123897751236,
-      "end_time": 28.817917680907467,
-      "duration": 4.316678703395105,
-      "start_frame": 392019,
-      "duration_frames": 69066,
-      "overlap": false,
-      "utterance_id": "6701-71401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71401.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.55125350529704,
-      "end_time": 32.0,
-      "duration": 2.4487464947029594,
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-      "utterance_id": "6227-36632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-36632.flac |",
-      "real_speaker_id": "6227",
-      "position_frames": 64169
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.7245937089673781,
-      "start_time": 3.687031841739391,
-      "speaker_id": "6701"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022534.json b/conversations/conv_022534.json
deleted file mode 100644
index bb4c261c737887d7ecffc2c5c89df7e1d64ebe32..0000000000000000000000000000000000000000
--- a/conversations/conv_022534.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.599076815954582,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5271-34506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34506.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.280653765038167,
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-      "utterance_id": "8742-245708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245708.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.229782728414786,
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-      "utterance_id": "5271-10982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-10982.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.03729317347258,
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-      "overlap": true,
-      "utterance_id": "8742-245708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245708.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 79205
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.902812816117788,
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-      "duration": 5.394724417887912,
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-      "duration_frames": 86315,
-      "overlap": false,
-      "utterance_id": "5271-34505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34505.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.744167433648528,
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-      "utterance_id": "8742-245707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245707.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5271/laugh/0086.wav",
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-      "speaker_id": "5271"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8742/laugh/0064.wav",
-      "duration": 0.5239518900164166,
-      "start_time": 18.653097747681972,
-      "speaker_id": "8742"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022538.json b/conversations/conv_022538.json
deleted file mode 100644
index 5378a6083679354c72e44926d7f98fcfe329fb4b..0000000000000000000000000000000000000000
--- a/conversations/conv_022538.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.749657215765396,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.537368829598523,
-      "duration": 3.537368829598523,
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-      "overlap": false,
-      "utterance_id": "1985-144468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.662845651587216,
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-      "overlap": false,
-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.510286251784548,
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-      "duration_frames": 52745,
-      "overlap": false,
-      "utterance_id": "1985-144468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 56597
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.542750705813994,
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-      "utterance_id": "2522-147156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "duration_frames": 75099,
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-      "utterance_id": "1985-144468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 109342
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 94622,
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-      "utterance_id": "2522-147156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
-      "position_frames": 64809
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.39200238851673,
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-      "overlap": true,
-      "utterance_id": "1985-144468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 184441
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2522/laugh/0041.wav",
-      "duration": 1.44,
-      "start_time": 14.922790006867492,
-      "speaker_id": "2522"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1985/laugh/0099.wav",
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-      "start_time": 18.96611690314052,
-      "speaker_id": "1985"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1985/cough/0107.wav",
-      "duration": 1.2,
-      "start_time": 19.72379439285887,
-      "speaker_id": "1985"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022543.json b/conversations/conv_022543.json
deleted file mode 100644
index 4e5faee7fa3f99412e2e4c9c13a13583987057fa..0000000000000000000000000000000000000000
--- a/conversations/conv_022543.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.834946641291541,
-      "duration": 5.834946641291541,
-      "start_frame": 0,
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-      "utterance_id": "1756-134820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134820.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.208798709111307,
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-      "utterance_id": "4599-21274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2351-151965.flac |",
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-      "segment_id": "seg0005",
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-      "utterance_id": "1756-134819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134819.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.995849163335162,
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-  "paralinguistic_events": [
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-      "speaker_id": "4599"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_022544.json b/conversations/conv_022544.json
deleted file mode 100644
index 0642828020902c56434a8dfbf29e5a85157b1a37..0000000000000000000000000000000000000000
--- a/conversations/conv_022544.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.14601533951916,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.49759309849882,
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-      "utterance_id": "3020-892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-892.flac |",
-      "real_speaker_id": "3020",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
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-      "position_frames": 57784
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-892.flac |",
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-      "segment_id": "seg0004",
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-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
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-    {
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-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_022552.json b/conversations/conv_022552.json
deleted file mode 100644
index 7d1a8a8cea8c9dd9ae669522bc70c834ede82b9e..0000000000000000000000000000000000000000
--- a/conversations/conv_022552.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77907.flac |",
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-      "real_speaker_id": "2050",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-96163.flac |",
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_022555.json b/conversations/conv_022555.json
deleted file mode 100644
index 69c7f0830052b6aaf0a661e7a89dfe2d8454b10d..0000000000000000000000000000000000000000
--- a/conversations/conv_022555.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "segment_id": "seg0003",
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-      "utterance_id": "3105-166683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3105-166683.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3105-166683.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_022559.json b/conversations/conv_022559.json
deleted file mode 100644
index 3f278562703e75fdd65e76e9ab58688d5938c00e..0000000000000000000000000000000000000000
--- a/conversations/conv_022559.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
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-      "position_frames": 49170
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 133344
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "3977-185466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185466.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.430656296407637,
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-      "duration": 0.569343703592363,
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-      "utterance_id": "7197-66278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66278.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3977/laugh/0103.wav",
-      "duration": 0.7491739186069962,
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-}
\ No newline at end of file
diff --git a/conversations/conv_022563.json b/conversations/conv_022563.json
deleted file mode 100644
index e6c4c31122f546a5912a3dc035f809539af15455..0000000000000000000000000000000000000000
--- a/conversations/conv_022563.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.745843948064936,
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-      "utterance_id": "3925-57460",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57460.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.95426159871003,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7664.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
-      "real_speaker_id": "4699",
-      "position_frames": 0
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-      "utterance_id": "3925-57460",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57460.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 107933
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2407-7666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7666.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.2429247239898,
-      "end_time": 32.0,
-      "duration": 4.757075276010202,
-      "start_frame": 435886,
-      "duration_frames": 76113,
-      "overlap": false,
-      "utterance_id": "3925-57460",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57460.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 170843
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-    {
-      "event_class": "Frying",
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-      "event_class": "laugh",
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-      "duration": 1.32,
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-      "speaker_id": "2407"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022575.json b/conversations/conv_022575.json
deleted file mode 100644
index 404250a3fb394e1068ba852231d216d7c9a895d1..0000000000000000000000000000000000000000
--- a/conversations/conv_022575.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.451397887665383,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.8841330933038325,
-      "duration": 6.8841330933038325,
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-      "duration_frames": 110146,
-      "overlap": false,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.391041339349029,
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-      "real_speaker_id": "8684",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125883.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 54997
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.107991862083406,
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-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 110146
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 2.4653926595171782,
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-      "duration_frames": 39446,
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-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 209650
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8684/laugh/0033.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.04,
-      "start_time": 10.627741526999822,
-      "speaker_id": "369"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8684/laugh/0054.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.6486353613171019,
-      "start_time": 29.41143113876633,
-      "speaker_id": "87"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022578.json b/conversations/conv_022578.json
deleted file mode 100644
index 8cdc3aa1488bfeeaf210f70c72bd174ddfb72df5..0000000000000000000000000000000000000000
--- a/conversations/conv_022578.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.580253629744792,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "duration_frames": 78023,
-      "overlap": false,
-      "utterance_id": "7538-100044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100044.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
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-      "utterance_id": "7538-100045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.16189616562925,
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-      "utterance_id": "4853-29413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-29413.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7538",
-      "position_frames": 77305
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7434-96672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 105868
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4853/laugh/0052.wav",
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-      "start_time": 20.384183821116135,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7538/laugh/0085.wav",
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-      "start_time": 29.11622889809548,
-      "speaker_id": "7538"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022579.json b/conversations/conv_022579.json
deleted file mode 100644
index 0b0eeb1fcbde0e4a3c4f3caa796ecc2dd30e032d..0000000000000000000000000000000000000000
--- a/conversations/conv_022579.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
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-      "end_time": 4.592108060470693,
-      "duration": 4.592108060470693,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4744-83616.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180307.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175932.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180307.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 50889
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.974692406626446,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175930.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-      "event_class": "Dog",
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-      "duration": 1.12,
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-      "speaker_id": "3618"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022580.json b/conversations/conv_022580.json
deleted file mode 100644
index ed6450d5d2055d6f737a56d2e6f419a7c1b4cac4..0000000000000000000000000000000000000000
--- a/conversations/conv_022580.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.87152740434468,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.629763070118285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132272.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122453.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 72351
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "speaker_id": "1813"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022596.json b/conversations/conv_022596.json
deleted file mode 100644
index 1f130b028b3f8f44d48a7ce2033050ef67056c4a..0000000000000000000000000000000000000000
--- a/conversations/conv_022596.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.285932118927217,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281512.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
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-    {
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-      "start_time": 13.369460414591607,
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-      "utterance_id": "7170-281512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281512.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 87061
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.982538213093598,
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-      "utterance_id": "7170-281510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281510.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6726-93466",
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-      "real_speaker_id": "6726",
-      "position_frames": 65430
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7170/laugh/0106.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022606.json b/conversations/conv_022606.json
deleted file mode 100644
index 457498055515c3e91460452cc82fe9ca565e1ddb..0000000000000000000000000000000000000000
--- a/conversations/conv_022606.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-10094.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7012-81370.flac |",
-      "real_speaker_id": "7012",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3928-153300",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.503554107786933,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7012-81370.flac |",
-      "real_speaker_id": "7012",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 100962
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_022607.json b/conversations/conv_022607.json
deleted file mode 100644
index 61407199d94a86fbdf22a9b6b12852a11862480b..0000000000000000000000000000000000000000
--- a/conversations/conv_022607.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 4.161835807555484,
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-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.583645501498216,
-      "end_time": 10.87108972447064,
-      "duration": 6.2874442229724234,
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-      "overlap": false,
-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.56755949311116,
-      "end_time": 14.916129857444755,
-      "duration": 3.3485703643335945,
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-      "overlap": false,
-      "utterance_id": "6892-256226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256226.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.225397435103355,
-      "end_time": 20.729155693931986,
-      "duration": 5.503758258828631,
-      "start_frame": 243606,
-      "duration_frames": 88060,
-      "overlap": false,
-      "utterance_id": "2517-135227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135227.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.639023726073134,
-      "end_time": 25.697709948595758,
-      "duration": 4.058686222522622,
-      "start_frame": 346224,
-      "duration_frames": 64938,
-      "overlap": false,
-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 100599
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.832728426379866,
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-      "duration": 5.167271573620134,
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-      "duration_frames": 82676,
-      "overlap": false,
-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 165537
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
-      "duration": 1.897836255447261,
-      "start_time": 22.411044802675185
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.1608752123411947,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2517/laugh/0028.wav",
-      "duration": 0.8062552616166141,
-      "start_time": 10.875228422859182,
-      "speaker_id": "2517"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022611.json b/conversations/conv_022611.json
deleted file mode 100644
index 2907937993b237b0499d364cf3b002bc18cf4243..0000000000000000000000000000000000000000
--- a/conversations/conv_022611.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.9072079934935395,
-      "duration": 5.9072079934935395,
-      "start_frame": 0,
-      "duration_frames": 94515,
-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.843177268423355,
-      "end_time": 11.8820748272732,
-      "duration": 5.038897558849844,
-      "start_frame": 109490,
-      "duration_frames": 80622,
-      "overlap": false,
-      "utterance_id": "7699-105389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105389.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.747524207937934,
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-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.400178248891603,
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-      "duration": 6.458368923673654,
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-      "duration_frames": 103333,
-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 94515
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.539055342651828,
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-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 82062
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.032766118315504,
-      "end_time": 32.0,
-      "duration": 1.9672338816844963,
-      "start_frame": 480524,
-      "duration_frames": 31475,
-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 197848
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "start_time": 7.201306306113913
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_0.wav",
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-      "start_time": 20.71891948295813
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
-      "duration": 4.880848206742607,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8975/laugh/0035.wav",
-      "duration": 0.7915014321015248,
-      "start_time": 18.10683308150962,
-      "speaker_id": "8975"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 0.7988408137134543,
-      "start_time": 11.784145181864055,
-      "speaker_id": "8975"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/laugh/0020.wav",
-      "duration": 0.9879774952513054,
-      "start_time": 24.991876985782575,
-      "speaker_id": "1487"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/cough/0066.wav",
-      "duration": 1.24,
-      "start_time": 24.950810159144698,
-      "speaker_id": "1487"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022627.json b/conversations/conv_022627.json
deleted file mode 100644
index 931bc2f8fd7d1069fe78ad09ba78f4f4c7f52538..0000000000000000000000000000000000000000
--- a/conversations/conv_022627.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.356003196360564,
-      "duration": 6.356003196360564,
-      "start_frame": 0,
-      "duration_frames": 101696,
-      "overlap": false,
-      "utterance_id": "8040-260924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-260924.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.87473191345065,
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-      "duration_frames": 95902,
-      "overlap": false,
-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
-      "real_speaker_id": "6236",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.797832265573096,
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-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.755824536624775,
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-      "utterance_id": "8040-111641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-111641.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration": 1.8383154561717916,
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-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
-      "real_speaker_id": "6236",
-      "position_frames": 92206
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "start_time": 8.51267977047227
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-  "foreground_events": [
-    {
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4474/laugh/0004.wav",
-      "duration": 1.1,
-      "start_time": 5.737593848214838,
-      "speaker_id": "4474"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4474/cough/0089.wav",
-      "duration": 0.5037207345161854,
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-      "speaker_id": "4474"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6236/laugh/0109.wav",
-      "duration": 1.08,
-      "start_time": 15.427531379679113,
-      "speaker_id": "6236"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6236/cough/0014.wav",
-      "duration": 0.9054515131283385,
-      "start_time": 18.998320464442337,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6236/cough/0038.wav",
-      "duration": 0.98,
-      "start_time": 31.02,
-      "speaker_id": "6236"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022631.json b/conversations/conv_022631.json
deleted file mode 100644
index f23a9f1920f26f32c06400c7a297305d4612af18..0000000000000000000000000000000000000000
--- a/conversations/conv_022631.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.876368404309341,
-      "duration": 5.876368404309341,
-      "start_frame": 0,
-      "duration_frames": 94021,
-      "overlap": false,
-      "utterance_id": "8587-295525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295525.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.937499163906295,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134657.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 79256,
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-      "utterance_id": "8587-295525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295525.flac |",
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-      "position_frames": 94021
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "949",
-      "position_frames": 55453
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8587-295524",
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.3728407294714722,
-      "start_time": 22.308301341369713
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8587/cough/0098.wav",
-      "duration": 0.3833170827488881,
-      "start_time": 1.6148948422026275,
-      "speaker_id": "8587"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/949/cough/0083.wav",
-      "duration": 1.12,
-      "start_time": 21.572176261386176,
-      "speaker_id": "949"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8587/cough/0086.wav",
-      "duration": 0.4605831839801545,
-      "start_time": 21.05898515965214,
-      "speaker_id": "8587"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022646.json b/conversations/conv_022646.json
deleted file mode 100644
index f22c5674b18801bb22deda92d69360e550d57efd..0000000000000000000000000000000000000000
--- a/conversations/conv_022646.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.773594152479454,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.8830590166858645,
-      "duration": 4.8830590166858645,
-      "start_frame": 0,
-      "duration_frames": 78128,
-      "overlap": false,
-      "utterance_id": "3109-165420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.480141802335228,
-      "end_time": 9.518259516193904,
-      "duration": 4.038117713858675,
-      "start_frame": 87682,
-      "duration_frames": 64609,
-      "overlap": false,
-      "utterance_id": "3021-121438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.701007401343261,
-      "end_time": 16.450114567323574,
-      "duration": 6.749107165980313,
-      "start_frame": 155216,
-      "duration_frames": 107985,
-      "overlap": false,
-      "utterance_id": "2269-165387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-165387.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.172891156825525,
-      "end_time": 22.99639774354229,
-      "duration": 5.823506586716763,
-      "start_frame": 274766,
-      "duration_frames": 93176,
-      "overlap": false,
-      "utterance_id": "3109-165420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 78128
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.720620211646054,
-      "end_time": 27.227283577278858,
-      "duration": 3.5066633656328037,
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-      "duration_frames": 56106,
-      "overlap": false,
-      "utterance_id": "2269-88761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-88761.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.608955835627878,
-      "end_time": 31.773594152479454,
-      "duration": 4.164638316851578,
-      "start_frame": 441743,
-      "duration_frames": 66634,
-      "overlap": false,
-      "utterance_id": "3021-121439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121439.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2269/laugh/0048.wav",
-      "duration": 0.7611398359212633,
-      "start_time": 26.037593396838894,
-      "speaker_id": "2269"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022650.json b/conversations/conv_022650.json
deleted file mode 100644
index 41c1717c0bc1150448a3d3d6cffb00900ae1819a..0000000000000000000000000000000000000000
--- a/conversations/conv_022650.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4116619203450225,
-      "duration": 3.4116619203450225,
-      "start_frame": 0,
-      "duration_frames": 54586,
-      "overlap": false,
-      "utterance_id": "1456-136846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-136846.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.149580318281265,
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-      "utterance_id": "6184-57833",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-57833.flac |",
-      "real_speaker_id": "6184",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7302-86814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86814.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.1711447785038,
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-      "start_frame": 274738,
-      "duration_frames": 90875,
-      "overlap": false,
-      "utterance_id": "1456-130545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130545.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.07305031040324,
-      "end_time": 29.206370782360203,
-      "duration": 5.133320471956964,
-      "start_frame": 385168,
-      "duration_frames": 82133,
-      "overlap": false,
-      "utterance_id": "6184-61313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-61313.flac |",
-      "real_speaker_id": "6184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.754525003560605,
-      "end_time": 32.0,
-      "duration": 2.2454749964393947,
-      "start_frame": 476072,
-      "duration_frames": 35927,
-      "overlap": false,
-      "utterance_id": "1456-130544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130544.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1456/cough/0027.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 5.807524450904383,
-      "speaker_id": "6184"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7302/cough/0032.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1456/cough/0101.wav",
-      "duration": 1.2771400492457434,
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-      "speaker_id": "1456"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022651.json b/conversations/conv_022651.json
deleted file mode 100644
index 88348f5c7c68e79890f25c00922c12daad0c9c01..0000000000000000000000000000000000000000
--- a/conversations/conv_022651.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.119905280103292,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.061992736105633,
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-      "duration": 4.93214057418758,
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-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 81918
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.435219362664473,
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-      "utterance_id": "2269-88761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-88761.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.472388467935712,
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-      "duration": 4.959684583155584,
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-      "duration_frames": 79354,
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-      "utterance_id": "2269-88761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-88761.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 87360
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.176990798080563,
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-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 160832
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.679501433176824,
-      "end_time": 32.0,
-      "duration": 5.320498566823176,
-      "start_frame": 426872,
-      "duration_frames": 85127,
-      "overlap": false,
-      "utterance_id": "2269-165387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-165387.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1809/laugh/0035.wav",
-      "duration": 1.04,
-      "start_time": 24.943712713373184,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2269/laugh/0072.wav",
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-      "start_time": 28.60571959462628,
-      "speaker_id": "2269"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022666.json b/conversations/conv_022666.json
deleted file mode 100644
index d437251eebf6625fa3efa04e7ffb82cfb5c413e9..0000000000000000000000000000000000000000
--- a/conversations/conv_022666.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.093435238873958,
-      "duration": 5.093435238873958,
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-      "utterance_id": "36-16603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.470028233447107,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
-      "real_speaker_id": "36",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 80050,
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-      "utterance_id": "8057-284428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-284428.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0005",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/36/cough/0006.wav",
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-      "speaker_id": "36"
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\ No newline at end of file
diff --git a/conversations/conv_022670.json b/conversations/conv_022670.json
deleted file mode 100644
index 96028998fc7fc9e295eeccf6d560262f97155eec..0000000000000000000000000000000000000000
--- a/conversations/conv_022670.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "8625-211892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-211892.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-211892.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 77786
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.99903703251285,
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-      "utterance_id": "8625-295957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-295957.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.235166200492188,
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-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 30.478933677005077,
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-      "duration": 1.5210663229949226,
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-      "duration_frames": 24337,
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-      "utterance_id": "6339-65554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_022682.json b/conversations/conv_022682.json
deleted file mode 100644
index 76d89a9bf284d2d9136139e29707d4a45602df93..0000000000000000000000000000000000000000
--- a/conversations/conv_022682.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2834-132496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2834-132496.flac |",
-      "real_speaker_id": "2834",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 5.300936583562648,
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-      "utterance_id": "2834-132496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2834-132496.flac |",
-      "real_speaker_id": "2834",
-      "position_frames": 75772
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-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.101469952164997,
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-      "duration": 5.4532942572435665,
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-      "duration_frames": 87252,
-      "overlap": false,
-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 84085
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.510541623688507,
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-      "utterance_id": "7314-77782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-77782.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2834/laugh/0022.wav",
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-      "speaker_id": "7314"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022685.json b/conversations/conv_022685.json
deleted file mode 100644
index bba15d9122569a08d1dea5a7879cede837c73474..0000000000000000000000000000000000000000
--- a/conversations/conv_022685.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-91098.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81859.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-    {
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-      "utterance_id": "6538-81858",
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-      "real_speaker_id": "6538",
-      "position_frames": 0
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-  "background_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "6538"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022689.json b/conversations/conv_022689.json
deleted file mode 100644
index d610f9adb1a9780c8dc9151918f79e32c776aca2..0000000000000000000000000000000000000000
--- a/conversations/conv_022689.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/51-121055.flac |",
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-      "speaker_id": "51"
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-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 17.077820767220985,
-      "speaker_id": "4005"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3083/laugh/0050.wav",
-      "duration": 1.24,
-      "start_time": 29.116163795187852,
-      "speaker_id": "3083"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022692.json b/conversations/conv_022692.json
deleted file mode 100644
index ad4d3212f9a931535c559fc16b4a183a65583c5a..0000000000000000000000000000000000000000
--- a/conversations/conv_022692.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.75990507823635,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-283136.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 5.533051958973713,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171139.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-283136.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 79665
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.71843067506561,
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-      "duration_frames": 111824,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171139.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 110651
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.688553474570448,
-      "end_time": 31.75990507823635,
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-      "duration_frames": 97141,
-      "overlap": true,
-      "utterance_id": "8444-283136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-283136.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 157233
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_9.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.04,
-      "start_time": 22.76347458561056,
-      "speaker_id": "3654"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022693.json b/conversations/conv_022693.json
deleted file mode 100644
index 153bd96eb30c6aa676c1b8e417b67d0045f53239..0000000000000000000000000000000000000000
--- a/conversations/conv_022693.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "8023-286253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286253.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "8023-286250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286250.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15081.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 106044
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.740347403291853,
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-      "duration": 6.2563382449728895,
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-      "overlap": false,
-      "utterance_id": "3394-168627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-168627.flac |",
-      "real_speaker_id": "3394",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.90646491674434,
-      "end_time": 32.0,
-      "duration": 2.0935350832556594,
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-      "duration_frames": 33496,
-      "overlap": false,
-      "utterance_id": "8023-286253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286253.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 52217
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 0.98,
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-      "speaker_id": "8023"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022694.json b/conversations/conv_022694.json
deleted file mode 100644
index f0c4c9fa99be6106079d836d075a47da03c72563..0000000000000000000000000000000000000000
--- a/conversations/conv_022694.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2388-153733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153733.flac |",
-      "real_speaker_id": "2388",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6883-79964.flac |",
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-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "6696-68773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-68773.flac |",
-      "real_speaker_id": "6696",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.58379257245607,
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-      "utterance_id": "2388-153728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153728.flac |",
-      "real_speaker_id": "2388",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6883-79964",
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-      "position_frames": 105632
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.25412923672301,
-      "end_time": 32.0,
-      "duration": 2.74587076327699,
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-      "duration_frames": 43933,
-      "overlap": false,
-      "utterance_id": "6696-68773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-68773.flac |",
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-      "position_frames": 64444
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022703.json b/conversations/conv_022703.json
deleted file mode 100644
index e0bc7353b5bd1b4da4a91b066755bb4d90696195..0000000000000000000000000000000000000000
--- a/conversations/conv_022703.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.1317672845327396,
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-      "utterance_id": "2628-153958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153958.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2628-109663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-109663.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9026-282385.flac |",
-      "real_speaker_id": "9026",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43331.flac |",
-      "real_speaker_id": "5772",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 0,
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-      "duration": 1.08,
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-      "speaker_id": "5772"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022714.json b/conversations/conv_022714.json
deleted file mode 100644
index 7e35167dc1f73745478b3fc728466848cc2648fe..0000000000000000000000000000000000000000
--- a/conversations/conv_022714.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7713-106738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106738.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.258427607594735,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106738.flac |",
-      "real_speaker_id": "7713",
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-      "utterance_id": "7956-245687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.935617873345866,
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-      "utterance_id": "7713-106733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106733.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.971009649718177,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 87859
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7713-106729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106729.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022715.json b/conversations/conv_022715.json
deleted file mode 100644
index 2d4e05a4d89508a342cce1d2651178344d5b0d92..0000000000000000000000000000000000000000
--- a/conversations/conv_022715.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.74179182792671,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-132610.flac |",
-      "real_speaker_id": "470",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-283730.flac |",
-      "real_speaker_id": "4422",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.00379745951741,
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-      "utterance_id": "104-129578",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-129578.flac |",
-      "real_speaker_id": "104",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-123366.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_022719.json b/conversations/conv_022719.json
deleted file mode 100644
index 8b22c4c970ace6996dcf352ad6de91a62de961e5..0000000000000000000000000000000000000000
--- a/conversations/conv_022719.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "464-126794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
-      "real_speaker_id": "712",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 85678
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "712",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "712-123615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022723.json b/conversations/conv_022723.json
deleted file mode 100644
index aaaafcdb57e79c6417452da7a6b9bcd1cd8bab3e..0000000000000000000000000000000000000000
--- a/conversations/conv_022723.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1685-146847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146847.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 0
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-    {
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-      "start_time": 5.771981785298871,
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-      "utterance_id": "5328-204986",
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-      "real_speaker_id": "5328",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1685-146849",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2512-157480.flac |",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 69853
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "1685-146845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146845.flac |",
-      "real_speaker_id": "1685",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022728.json b/conversations/conv_022728.json
deleted file mode 100644
index 9f66c994e70e3535780cd10bf5ddf90d1887bf78..0000000000000000000000000000000000000000
--- a/conversations/conv_022728.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-132862.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 4.360479968381583,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-128284.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "8012-273145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273145.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 101485
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-      "segment_id": "seg0005",
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-      "utterance_id": "8012-273137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273137.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_022735.json b/conversations/conv_022735.json
deleted file mode 100644
index 96120a8c55268fafa161b80011f93acd1c8b8b10..0000000000000000000000000000000000000000
--- a/conversations/conv_022735.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-51153.flac |",
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-      "real_speaker_id": "5796",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7843-110055.flac |",
-      "real_speaker_id": "7843",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-49593.flac |",
-      "real_speaker_id": "5796",
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-      "position_frames": 92811
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "speaker_id": "7585"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022738.json b/conversations/conv_022738.json
deleted file mode 100644
index 0b3c36874d0ef93b6e0e159a397ff4564ec79be4..0000000000000000000000000000000000000000
--- a/conversations/conv_022738.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3912-82271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-82271.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1536-141791.flac |",
-      "real_speaker_id": "1536",
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-      "segment_id": "seg0002",
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-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_022739.json b/conversations/conv_022739.json
deleted file mode 100644
index a2f0aab188bb3aafae3dd7eaa707e53aa6e4cac3..0000000000000000000000000000000000000000
--- a/conversations/conv_022739.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.742549544825852,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "512-124520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124520.flac |",
-      "real_speaker_id": "512",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1065",
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\ No newline at end of file
diff --git a/conversations/conv_022742.json b/conversations/conv_022742.json
deleted file mode 100644
index 4e0b6334343237e8b2c8ce185c5ab0681b8a411c..0000000000000000000000000000000000000000
--- a/conversations/conv_022742.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8609-262281.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_022743.json b/conversations/conv_022743.json
deleted file mode 100644
index 9873f57f507b43ab6b2a1b7f8e50f07cd5d78abe..0000000000000000000000000000000000000000
--- a/conversations/conv_022743.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132466.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 52304
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_022754.json b/conversations/conv_022754.json
deleted file mode 100644
index d3438d04ef75cd527b1a01bc91f03cc721f09ca2..0000000000000000000000000000000000000000
--- a/conversations/conv_022754.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-137004.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "8356",
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-      "real_speaker_id": "5092",
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-      "segment_id": "seg0004",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_022758.json b/conversations/conv_022758.json
deleted file mode 100644
index d4d1cf12ee86f5852e32b8fa8967ad8fa57fe276..0000000000000000000000000000000000000000
--- a/conversations/conv_022758.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1754-137004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-137004.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71944.flac |",
-      "real_speaker_id": "6513",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-140639.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 80367
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.187314866938543,
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-      "utterance_id": "8312-279790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279790.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1754/laugh/0045.wav",
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-      "event_class": "cough",
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-      "duration": 0.3365542365946222,
-      "start_time": 29.725630176667007,
-      "speaker_id": "1754"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022762.json b/conversations/conv_022762.json
deleted file mode 100644
index 7ec7a988d8d696f2f95917824b8a25c13642143c..0000000000000000000000000000000000000000
--- a/conversations/conv_022762.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.555248905168995,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.076414256627855,
-      "duration": 5.076414256627855,
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-      "overlap": false,
-      "utterance_id": "8063-274116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274116.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.554126624096374,
-      "end_time": 9.855537758968502,
-      "duration": 4.301411134872128,
-      "start_frame": 88866,
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-      "overlap": false,
-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 10.510126982999482,
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-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 68822
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.70773684058978,
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-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 132849
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8063-274116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274116.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 81222
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_022769.json b/conversations/conv_022769.json
deleted file mode 100644
index 2c0adf9c9a5094f9dd6a0cfc9236e3ed4b45675e..0000000000000000000000000000000000000000
--- a/conversations/conv_022769.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "175-127696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-127696.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86815.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 96470
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "175-129587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-129587.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.632203061680414,
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-      "utterance_id": "7302-86814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86814.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1444/laugh/0000.wav",
-      "duration": 1.5647880273851147,
-      "start_time": 24.357068853154846,
-      "speaker_id": "1444"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022774.json b/conversations/conv_022774.json
deleted file mode 100644
index f5709f882adaba054da1070697f9ca5074efd192..0000000000000000000000000000000000000000
--- a/conversations/conv_022774.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 5.391123514004604,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2545-135235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.406507247424067,
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-      "utterance_id": "3723-171115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171115.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.252581029841036,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
-      "position_frames": 86257
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2026-81609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81609.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.625899429943722,
-      "end_time": 32.0,
-      "duration": 0.37410057005627806,
-      "start_frame": 506014,
-      "duration_frames": 5985,
-      "overlap": false,
-      "utterance_id": "2545-135235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
-      "position_frames": 176380
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.2766421799763776,
-      "start_time": 0.534791987465222
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_022778.json b/conversations/conv_022778.json
deleted file mode 100644
index 7be9a13032b92f3bf050900a65a042700ed7d098..0000000000000000000000000000000000000000
--- a/conversations/conv_022778.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.566239329175768,
-      "duration": 3.566239329175768,
-      "start_frame": 0,
-      "duration_frames": 57059,
-      "overlap": false,
-      "utterance_id": "202-122857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-122857.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.091622520045641,
-      "end_time": 10.039931437211587,
-      "duration": 4.948308917165946,
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-      "duration_frames": 79172,
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-      "utterance_id": "202-122857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-122857.flac |",
-      "real_speaker_id": "202",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "speaker_id": "2133"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022781.json b/conversations/conv_022781.json
deleted file mode 100644
index ad10c70c82472cbf5cb1fee14f714f227b8e5885..0000000000000000000000000000000000000000
--- a/conversations/conv_022781.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7190",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90543.flac |",
-      "real_speaker_id": "7190",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132576.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90542.flac |",
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-      "real_speaker_id": "1924",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_022786.json b/conversations/conv_022786.json
deleted file mode 100644
index 1e94da7eebca11a291199c6f942979e192d86cde..0000000000000000000000000000000000000000
--- a/conversations/conv_022786.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "1331",
-      "position_frames": 75864
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "4738",
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-    {
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-      "start_time": 30.82,
-      "speaker_id": "3564"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022790.json b/conversations/conv_022790.json
deleted file mode 100644
index eaa27bc033e52e910a9ba85da598f734e89e2397..0000000000000000000000000000000000000000
--- a/conversations/conv_022790.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.30674013456506,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-62827.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
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-    {
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-      "speaker_id": "3245"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022797.json b/conversations/conv_022797.json
deleted file mode 100644
index a362cfb4199350c10f147a2e369b64df4eb51ea3..0000000000000000000000000000000000000000
--- a/conversations/conv_022797.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_022801.json b/conversations/conv_022801.json
deleted file mode 100644
index db75b05a582c0989907f64be8978992edc1d35ec..0000000000000000000000000000000000000000
--- a/conversations/conv_022801.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "1944",
-      "position_frames": 0
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-  "foreground_events": [
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-      "speaker_id": "4766"
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\ No newline at end of file
diff --git a/conversations/conv_022806.json b/conversations/conv_022806.json
deleted file mode 100644
index 6abe565e90e1effda4f87bf1e9fd52eb2bb2668e..0000000000000000000000000000000000000000
--- a/conversations/conv_022806.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6159",
-      "position_frames": 84350
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-      "segment_id": "seg0005",
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-      "duration": 3.711059248216415,
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-      "overlap": false,
-      "utterance_id": "1923-161972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161972.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022810.json b/conversations/conv_022810.json
deleted file mode 100644
index 48cc2a9f0bb417fa8ddc83d92fcf4c4848b4f533..0000000000000000000000000000000000000000
--- a/conversations/conv_022810.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.170930566515867,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8040-111641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-111641.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6106",
-      "position_frames": 71104
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-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 0
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-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022817.json b/conversations/conv_022817.json
deleted file mode 100644
index 9ba034dac9a85a06d6a680c25d44aa2ee9471275..0000000000000000000000000000000000000000
--- a/conversations/conv_022817.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.2337477109692516,
-      "duration": 3.2337477109692516,
-      "start_frame": 0,
-      "duration_frames": 51739,
-      "overlap": false,
-      "utterance_id": "377-129292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129292.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.6390664063534155,
-      "end_time": 7.682226385375489,
-      "duration": 4.043159979022073,
-      "start_frame": 58225,
-      "duration_frames": 64690,
-      "overlap": false,
-      "utterance_id": "1867-154075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1867-154075.flac |",
-      "real_speaker_id": "1867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 7.883016747995159,
-      "end_time": 11.50349841972619,
-      "duration": 3.6204816717310315,
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-      "duration_frames": 57927,
-      "overlap": true,
-      "utterance_id": "377-129292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129292.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 51739
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.438127264708584,
-      "end_time": 18.73839571401985,
-      "duration": 6.300268449311265,
-      "start_frame": 199010,
-      "duration_frames": 100804,
-      "overlap": false,
-      "utterance_id": "1867-154075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1867-154075.flac |",
-      "real_speaker_id": "1867",
-      "position_frames": 64690
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.46481131367964,
-      "end_time": 23.54645130308007,
-      "duration": 4.08163998940043,
-      "start_frame": 311436,
-      "duration_frames": 65306,
-      "overlap": false,
-      "utterance_id": "377-129292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129292.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 109666
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.955808025887375,
-      "end_time": 29.645442740468894,
-      "duration": 5.689634714581521,
-      "start_frame": 383292,
-      "duration_frames": 91034,
-      "overlap": false,
-      "utterance_id": "1867-154071",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1867-154071.flac |",
-      "real_speaker_id": "1867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.792391462791034,
-      "end_time": 32.0,
-      "duration": 2.2076085372089658,
-      "start_frame": 476678,
-      "duration_frames": 35321,
-      "overlap": false,
-      "utterance_id": "1867-154071",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1867-154071.flac |",
-      "real_speaker_id": "1867",
-      "position_frames": 91034
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
-      "duration": 0.6236734693877551,
-      "start_time": 30.445285778620352
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
-      "duration": 0.8147165532879819,
-      "start_time": 0.8456759393930307
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/377/cough/0025.wav",
-      "duration": 0.3208979790733944,
-      "start_time": 0,
-      "speaker_id": "377"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1867/cough/0134.wav",
-      "duration": 1.08,
-      "start_time": 2.5238010394034887,
-      "speaker_id": "1867"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/377/laugh/0012.wav",
-      "duration": 1.16,
-      "start_time": 11.691519039051158,
-      "speaker_id": "377"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022826.json b/conversations/conv_022826.json
deleted file mode 100644
index 17a5a58a7cbc7b50627f63ae92d1fc6e341ea8b4..0000000000000000000000000000000000000000
--- a/conversations/conv_022826.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.9687721240730482,
-      "duration": 3.9687721240730482,
-      "start_frame": 0,
-      "duration_frames": 63500,
-      "overlap": false,
-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.4059415454737705,
-      "end_time": 7.61159888649995,
-      "duration": 3.205657341026179,
-      "start_frame": 70495,
-      "duration_frames": 51290,
-      "overlap": false,
-      "utterance_id": "4667-102196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.448131486700621,
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-      "duration": 6.066130692121408,
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-      "duration_frames": 97058,
-      "overlap": false,
-      "utterance_id": "770-134592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-134592.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.141477448889262,
-      "end_time": 19.25037598554709,
-      "duration": 4.108898536657829,
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-      "overlap": false,
-      "utterance_id": "4667-102196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 51290
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.62010325745315,
-      "end_time": 23.454306819965353,
-      "duration": 3.834203562512206,
-      "start_frame": 313921,
-      "duration_frames": 61347,
-      "overlap": false,
-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 63500
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.035259929356645,
-      "end_time": 30.340465807202317,
-      "duration": 6.3052058778456725,
-      "start_frame": 384564,
-      "duration_frames": 100883,
-      "overlap": false,
-      "utterance_id": "4667-102196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 117032
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.060616716688227,
-      "end_time": 32.0,
-      "duration": 0.9393832833117735,
-      "start_frame": 496969,
-      "duration_frames": 15030,
-      "overlap": false,
-      "utterance_id": "770-131704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-131704.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6411/laugh/0093.wav",
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-      "start_time": 4.112589106406712,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/laugh/0021.wav",
-      "duration": 1.04,
-      "start_time": 15.58848679629313,
-      "speaker_id": "4667"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/laugh/0059.wav",
-      "duration": 0.5430334864643511,
-      "start_time": 23.379564351682358,
-      "speaker_id": "4667"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/770/laugh/0064.wav",
-      "duration": 1.76,
-      "start_time": 30.24,
-      "speaker_id": "770"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022830.json b/conversations/conv_022830.json
deleted file mode 100644
index fcf8dc486916233d81a4b1feb5a04492e2a19658..0000000000000000000000000000000000000000
--- a/conversations/conv_022830.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.371180271637336,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "448-135065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-135065.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-295195.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7228-98227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98227.flac |",
-      "real_speaker_id": "7228",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "7228",
-      "position_frames": 78219
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.711140829066828,
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-      "duration_frames": 92614,
-      "overlap": false,
-      "utterance_id": "448-135065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-135065.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 83086
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7228-98202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98202.flac |",
-      "real_speaker_id": "7228",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/448/laugh/0115.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7228/laugh/0138.wav",
-      "duration": 1.48,
-      "start_time": 26.37147683792877,
-      "speaker_id": "7228"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022840.json b/conversations/conv_022840.json
deleted file mode 100644
index 88fe34dd17cb158b14b35469760145cf73140f39..0000000000000000000000000000000000000000
--- a/conversations/conv_022840.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.57051862924949,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1552-140656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-140656.flac |",
-      "real_speaker_id": "1552",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2694-28891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28891.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-140656.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3063/cough/0100.wav",
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-      "speaker_id": "1552"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022847.json b/conversations/conv_022847.json
deleted file mode 100644
index 024c341b154029db0886cb696c04511739b55c32..0000000000000000000000000000000000000000
--- a/conversations/conv_022847.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.6482977632954015,
-      "duration": 5.6482977632954015,
-      "start_frame": 0,
-      "duration_frames": 90372,
-      "overlap": false,
-      "utterance_id": "7502-100440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100440.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.394096085259967,
-      "end_time": 10.407585391060929,
-      "duration": 4.013489305800961,
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-      "utterance_id": "1258-135063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135063.flac |",
-      "real_speaker_id": "1258",
-      "position_frames": 0
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-      "end_time": 16.09039231197155,
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-      "utterance_id": "1258-135063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135063.flac |",
-      "real_speaker_id": "1258",
-      "position_frames": 64215
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1258-135062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135062.flac |",
-      "real_speaker_id": "1258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.93331733480407,
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-      "overlap": false,
-      "utterance_id": "7502-100426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100426.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.00783087695872,
-      "end_time": 32.0,
-      "duration": 2.992169123041279,
-      "start_frame": 464125,
-      "duration_frames": 47874,
-      "overlap": false,
-      "utterance_id": "1258-135062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135062.flac |",
-      "real_speaker_id": "1258",
-      "position_frames": 88625
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
-      "duration": 0.29401360544217686,
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 9.857268250381463,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1258/cough/0000.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1258/laugh/0032.wav",
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-      "start_time": 30.15671513113785,
-      "speaker_id": "1258"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022851.json b/conversations/conv_022851.json
deleted file mode 100644
index bffcbb43d6d5e0ac61efc483f2012a90436af29f..0000000000000000000000000000000000000000
--- a/conversations/conv_022851.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1668-136280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136280.flac |",
-      "real_speaker_id": "1668",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.6591552940318612,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-171003.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1668-136271",
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-      "speaker_id": 1,
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-      "utterance_id": "3319-171003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-171003.flac |",
-      "real_speaker_id": "3319",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-171003.flac |",
-      "real_speaker_id": "3319",
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-      "overlap": true,
-      "utterance_id": "1668-136280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136280.flac |",
-      "real_speaker_id": "1668",
-      "position_frames": 48128
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "3319-173247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-173247.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022856.json b/conversations/conv_022856.json
deleted file mode 100644
index 79b3a413fccba5b191a1b8bc9bee74b9ebd6c188..0000000000000000000000000000000000000000
--- a/conversations/conv_022856.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "3356-132542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3356-132542.flac |",
-      "real_speaker_id": "3356",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-121907.flac |",
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-      "utterance_id": "1731-142320",
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-      "real_speaker_id": "1731",
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-    {
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-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "157",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1731/laugh/0064.wav",
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-    {
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-      "start_time": 12.45835452999249,
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-}
\ No newline at end of file
diff --git a/conversations/conv_022867.json b/conversations/conv_022867.json
deleted file mode 100644
index 0080d7f3dc5d2006469e44365f2ab21a68b34f4f..0000000000000000000000000000000000000000
--- a/conversations/conv_022867.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 191167
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.84153486784372,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-67218.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6627/laugh/0022.wav",
-      "duration": 1.0494368920574118,
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-      "speaker_id": "6627"
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-      "start_time": 18.339884900161252,
-      "speaker_id": "1987"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_022871.json b/conversations/conv_022871.json
deleted file mode 100644
index 982c4dbb8ab772c8b4a3360256584385009ab806..0000000000000000000000000000000000000000
--- a/conversations/conv_022871.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4973-24516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24516.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
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-      "start_time": 7.223660665839252,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24516.flac |",
-      "real_speaker_id": "4973",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-129973.flac |",
-      "real_speaker_id": "294",
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-      "start_time": 24.162498917064575,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-141422.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-44575.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_022883.json b/conversations/conv_022883.json
deleted file mode 100644
index 909415e896c31ba73242b9cafd79162ccb3aad13..0000000000000000000000000000000000000000
--- a/conversations/conv_022883.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-4878.flac |",
-      "real_speaker_id": "4015",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 18.877147551954316,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1562.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 0
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_022884.json b/conversations/conv_022884.json
deleted file mode 100644
index c4714efc0858f6326b8b356b66da073fcd9f107d..0000000000000000000000000000000000000000
--- a/conversations/conv_022884.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124146.flac |",
-      "real_speaker_id": "322",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124146.flac |",
-      "real_speaker_id": "322",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "7199",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124146.flac |",
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-  "background_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_022888.json b/conversations/conv_022888.json
deleted file mode 100644
index 262ce64a1c053d7be620a72413fa75ddd39a008d..0000000000000000000000000000000000000000
--- a/conversations/conv_022888.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "3006",
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-      "utterance_id": "730-358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-358.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5697.flac |",
-      "real_speaker_id": "3006",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/481/laugh/0012.wav",
-      "duration": 0.9363622460662296,
-      "start_time": 0.7895321562899736,
-      "speaker_id": "481"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/730/laugh/0145.wav",
-      "duration": 0.6859403878177683,
-      "start_time": 15.318628504534441,
-      "speaker_id": "730"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022892.json b/conversations/conv_022892.json
deleted file mode 100644
index df3c0ccf64f680b5fbce8b5e05811d17e0ae7725..0000000000000000000000000000000000000000
--- a/conversations/conv_022892.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.53545164946389,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.382648258756039,
-      "duration": 5.382648258756039,
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-      "duration_frames": 86122,
-      "overlap": false,
-      "utterance_id": "1311-134170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.062154675933302,
-      "end_time": 12.206710955255167,
-      "duration": 6.144556279321865,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.692741559918767,
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 16.764404683778636,
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-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 98312
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 51683
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.378425093816123,
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-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 164919
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.37435766443466,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
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-      "position_frames": 108999
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_022893.json b/conversations/conv_022893.json
deleted file mode 100644
index ca5ddfbc8a38359eb14a88030d7cfaa4a02968d6..0000000000000000000000000000000000000000
--- a/conversations/conv_022893.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 0
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.19392914425678,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
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-      "position_frames": 90842
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "8028"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022902.json b/conversations/conv_022902.json
deleted file mode 100644
index 201690a31c5d9935ac35e13a0b3895c367dfead3..0000000000000000000000000000000000000000
--- a/conversations/conv_022902.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2920-156224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156224.flac |",
-      "real_speaker_id": "2920",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/30-4447.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156224.flac |",
-      "real_speaker_id": "2920",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "5198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156224.flac |",
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-      "position_frames": 198807
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_022905.json b/conversations/conv_022905.json
deleted file mode 100644
index f9f1c668f26bdc8b8e523df676a3abf432648a39..0000000000000000000000000000000000000000
--- a/conversations/conv_022905.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "78-369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-369.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36027.flac |",
-      "real_speaker_id": "4824",
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-    {
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-      "utterance_id": "4133-6541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
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-    {
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-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "start_time": 26.240994533818622
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 2.4687926807983716,
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-      "duration": 0.5132312243283563,
-      "start_time": 10.183115814705618,
-      "speaker_id": "4824"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4133/laugh/0002.wav",
-      "duration": 1.44,
-      "start_time": 8.626873826931021,
-      "speaker_id": "4133"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/78/laugh/0087.wav",
-      "duration": 0.9972569110855993,
-      "start_time": 27.096395028516596,
-      "speaker_id": "78"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022913.json b/conversations/conv_022913.json
deleted file mode 100644
index db21c36b010311bbf420ecf16526968f2b0422e8..0000000000000000000000000000000000000000
--- a/conversations/conv_022913.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.135342773300388,
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-      "overlap": false,
-      "utterance_id": "593-126928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126928.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.962271645075447,
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-      "duration": 3.560511283168644,
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-      "duration_frames": 56968,
-      "overlap": false,
-      "utterance_id": "475-125002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125002.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.290541878992116,
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-      "start_frame": 148648,
-      "duration_frames": 50985,
-      "overlap": false,
-      "utterance_id": "475-125001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125001.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.940156535930907,
-      "end_time": 16.845335386339556,
-      "duration": 3.9051788504086504,
-      "start_frame": 207042,
-      "duration_frames": 62482,
-      "overlap": false,
-      "utterance_id": "593-126928",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126928.flac |",
-      "real_speaker_id": "593",
-      "position_frames": 66165
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.369441789517477,
-      "end_time": 20.429278383356042,
-      "duration": 3.059836593838564,
-      "start_frame": 277911,
-      "duration_frames": 48957,
-      "overlap": true,
-      "utterance_id": "475-125002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125002.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 56968
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 21.778504127088482,
-      "end_time": 28.501581717085507,
-      "duration": 6.723077589997025,
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-      "duration_frames": 107569,
-      "overlap": false,
-      "utterance_id": "475-124999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124999.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.931304498479086,
-      "end_time": 32.0,
-      "duration": 3.0686955015209136,
-      "start_frame": 462900,
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-      "overlap": false,
-      "utterance_id": "475-124994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124994.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
-      "duration": 1.7417913832199547,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/593/laugh/0005.wav",
-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "593"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/475/cough/0088.wav",
-      "duration": 1.2071630950281995,
-      "start_time": 27.63374787198191,
-      "speaker_id": "475"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022914.json b/conversations/conv_022914.json
deleted file mode 100644
index 01c05b32ecab8776cb9c709748a0f969a5adca35..0000000000000000000000000000000000000000
--- a/conversations/conv_022914.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.906547621719225,
-      "duration": 4.906547621719225,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7635-105661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7635-105661.flac |",
-      "real_speaker_id": "7635",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.469715612002162,
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-      "duration": 6.907096753528809,
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-      "overlap": false,
-      "utterance_id": "5361-27492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5361-27492.flac |",
-      "real_speaker_id": "5361",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.356560891036814,
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-      "duration": 3.879247148029715,
-      "start_frame": 197704,
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-      "overlap": true,
-      "utterance_id": "4104-185522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-185522.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.99369044421021,
-      "end_time": 22.639655366340378,
-      "duration": 5.64596492213017,
-      "start_frame": 271899,
-      "duration_frames": 90335,
-      "overlap": false,
-      "utterance_id": "7635-105661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7635-105661.flac |",
-      "real_speaker_id": "7635",
-      "position_frames": 78504
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.322827210767617,
-      "end_time": 28.998022168270573,
-      "duration": 5.675194957502955,
-      "start_frame": 373165,
-      "duration_frames": 90803,
-      "overlap": false,
-      "utterance_id": "7635-105409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7635-105409.flac |",
-      "real_speaker_id": "7635",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.661129014034433,
-      "end_time": 32.0,
-      "duration": 2.338870985965567,
-      "start_frame": 474578,
-      "duration_frames": 37421,
-      "overlap": false,
-      "utterance_id": "5361-27491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5361-27491.flac |",
-      "real_speaker_id": "5361",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7635/laugh/0011.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5361/laugh/0067.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5361/cough/0086.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5361/laugh/0032.wav",
-      "duration": 1.12,
-      "start_time": 28.393993878648132,
-      "speaker_id": "5361"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022918.json b/conversations/conv_022918.json
deleted file mode 100644
index 4db6046f88d8109bc0c5a011bc64630f20d8e5bb..0000000000000000000000000000000000000000
--- a/conversations/conv_022918.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.514129314663844,
-      "duration": 5.514129314663844,
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-      "duration_frames": 88226,
-      "overlap": false,
-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.944748819536344,
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-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.025210912127665,
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-      "duration_frames": 98806,
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-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 65527
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.969738638204216,
-      "end_time": 25.885441249319108,
-      "duration": 3.9157026111148916,
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-      "duration_frames": 62651,
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-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 62399
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 5.61592110902393,
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-      "duration_frames": 89854,
-      "overlap": false,
-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 125050
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1825/laugh/0098.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.36,
-      "start_time": 24.355282375503783,
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-}
\ No newline at end of file
diff --git a/conversations/conv_022922.json b/conversations/conv_022922.json
deleted file mode 100644
index 4cedd1679da917930eac0f3811b5936a2d56d978..0000000000000000000000000000000000000000
--- a/conversations/conv_022922.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.50284860010626,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.584964310512877,
-      "duration": 5.584964310512877,
-      "start_frame": 0,
-      "duration_frames": 89359,
-      "overlap": false,
-      "utterance_id": "1051-133881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1051-133881.flac |",
-      "real_speaker_id": "1051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "4495-10160",
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-      "real_speaker_id": "4495",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "1051-133883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1051-133883.flac |",
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-    {
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-      "utterance_id": "1051-133881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1051-133881.flac |",
-      "real_speaker_id": "1051",
-      "position_frames": 89359
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 17.985550084627594,
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-      "duration": 4.242980947768885,
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1051/laugh/0016.wav",
-      "duration": 0.8695501336729173,
-      "start_time": 5.701364937477198,
-      "speaker_id": "1051"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4495/laugh/0044.wav",
-      "duration": 1.04,
-      "start_time": 10.253901709962445,
-      "speaker_id": "4495"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1051/cough/0091.wav",
-      "duration": 0.6651567410228645,
-      "start_time": 14.388968103783764,
-      "speaker_id": "1051"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1051/laugh/0086.wav",
-      "duration": 0.6180932285676152,
-      "start_time": 25.80381656156599,
-      "speaker_id": "1051"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022929.json b/conversations/conv_022929.json
deleted file mode 100644
index 88101c9c3c33801d4bf79011489abfceb9adc448..0000000000000000000000000000000000000000
--- a/conversations/conv_022929.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.288779957913541,
-      "duration": 5.288779957913541,
-      "start_frame": 0,
-      "duration_frames": 84620,
-      "overlap": false,
-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.317034585809028,
-      "end_time": 11.458646459010623,
-      "duration": 5.141611873201594,
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-      "utterance_id": "1717-142305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.070430111785157,
-      "end_time": 17.593632885178913,
-      "duration": 5.523202773393757,
-      "start_frame": 193126,
-      "duration_frames": 88371,
-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.494851681566104,
-      "end_time": 23.793912560553164,
-      "duration": 5.29906087898706,
-      "start_frame": 295917,
-      "duration_frames": 84784,
-      "overlap": false,
-      "utterance_id": "1717-142305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 82265
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.91688515976577,
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-      "start_frame": 382670,
-      "duration_frames": 111912,
-      "overlap": true,
-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 84620
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.697664337812068,
-      "end_time": 32.0,
-      "duration": 0.3023356621879323,
-      "start_frame": 507162,
-      "duration_frames": 4837,
-      "overlap": false,
-      "utterance_id": "1717-142305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 167049
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1717"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1413/laugh/0097.wav",
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-      "speaker_id": "1413"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1717/laugh/0030.wav",
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-      "speaker_id": "1717"
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-}
\ No newline at end of file
diff --git a/conversations/conv_022934.json b/conversations/conv_022934.json
deleted file mode 100644
index 37eb487f139c23431e60fd0cadedf84fd1592a4d..0000000000000000000000000000000000000000
--- a/conversations/conv_022934.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.74782871097216,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "154-123998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-123998.flac |",
-      "real_speaker_id": "154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.193836083427644,
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-      "utterance_id": "5389-41911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-41911.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.019403943500805,
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-      "overlap": false,
-      "utterance_id": "1403-135907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-135907.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.03793063456475,
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-      "utterance_id": "154-124002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-124002.flac |",
-      "real_speaker_id": "154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.703816214243545,
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-      "utterance_id": "5389-41911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-41911.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 77070
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022938.json b/conversations/conv_022938.json
deleted file mode 100644
index 52eb45afeb46cad664755b10e179abe587fe8355..0000000000000000000000000000000000000000
--- a/conversations/conv_022938.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration_frames": 64121,
-      "overlap": false,
-      "utterance_id": "5245-3984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5245-3984.flac |",
-      "real_speaker_id": "5245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.303625222940472,
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-      "utterance_id": "6735-284431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-284431.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6923-82334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82334.flac |",
-      "real_speaker_id": "6923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.3043762855171,
-      "end_time": 22.228094695750585,
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-      "overlap": false,
-      "utterance_id": "6923-82334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82334.flac |",
-      "real_speaker_id": "6923",
-      "position_frames": 111863
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5245-3984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5245-3984.flac |",
-      "real_speaker_id": "5245",
-      "position_frames": 64121
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.85078646323221,
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-      "duration": 2.149213536767789,
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-      "duration_frames": 34387,
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-      "utterance_id": "5245-3984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5245-3984.flac |",
-      "real_speaker_id": "5245",
-      "position_frames": 147537
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5245/laugh/0105.wav",
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-      "start_time": 28.499758834604673,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5245/cough/0065.wav",
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-      "speaker_id": "5245"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022939.json b/conversations/conv_022939.json
deleted file mode 100644
index 5ad3f1de8f745639dce7e3e68b6649b7f3765912..0000000000000000000000000000000000000000
--- a/conversations/conv_022939.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.23402351150278,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.867363120823563,
-      "duration": 5.867363120823563,
-      "start_frame": 0,
-      "duration_frames": 93877,
-      "overlap": false,
-      "utterance_id": "4926-23311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23311.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.689375252094857,
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-      "overlap": false,
-      "utterance_id": "1355-39947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.003269172989016,
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-      "start_frame": 224052,
-      "duration_frames": 109002,
-      "overlap": false,
-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.088130062268736,
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-      "duration_frames": 68097,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 109002
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23311.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_022943.json b/conversations/conv_022943.json
deleted file mode 100644
index b35551b348e916273977eef7e7cea81095e563af..0000000000000000000000000000000000000000
--- a/conversations/conv_022943.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
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-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41994.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41995.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41994.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 79488
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.508122117762888,
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-      "overlap": false,
-      "utterance_id": "6733-59185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6733-59185.flac |",
-      "real_speaker_id": "6733",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_022944.json b/conversations/conv_022944.json
deleted file mode 100644
index 5186203a86d92247cb0b705df3b7870d90bfa559..0000000000000000000000000000000000000000
--- a/conversations/conv_022944.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "310-129055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 182169
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "duration": 1.88,
-      "start_time": 22.827010760830852,
-      "speaker_id": "7558"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022952.json b/conversations/conv_022952.json
deleted file mode 100644
index edf4bf2047ae57cd10949472bfaffe92922a0113..0000000000000000000000000000000000000000
--- a/conversations/conv_022952.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8825-292253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292253.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "5678-43303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43303.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292252.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 24.50380158440509,
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-      "real_speaker_id": "4428",
-      "position_frames": 108809
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43301.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-    {
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-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
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-      "event_class": "laugh",
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-      "start_time": 17.967483072707427,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 23.369546429812978,
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-    {
-      "event_class": "cough",
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-      "start_time": 24.013660761238004,
-      "speaker_id": "4428"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022955.json b/conversations/conv_022955.json
deleted file mode 100644
index bfafeb18bcb6350c26fbf5bb402a77d05f29868b..0000000000000000000000000000000000000000
--- a/conversations/conv_022955.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3925-57660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57660.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57460.flac |",
-      "real_speaker_id": "3925",
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-      "speaker_id": 0,
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_022959.json b/conversations/conv_022959.json
deleted file mode 100644
index 49869bf8aca447403c236a9e4e76b18c06eea3e7..0000000000000000000000000000000000000000
--- a/conversations/conv_022959.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.439371082371608,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "6538",
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-      "position_frames": 75047
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_022963.json b/conversations/conv_022963.json
deleted file mode 100644
index efe0664123a73690dbdf6c6ccc873a38a1077484..0000000000000000000000000000000000000000
--- a/conversations/conv_022963.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_022975.json b/conversations/conv_022975.json
deleted file mode 100644
index 50945bfe300c1d11b3207111655c347f06a8358a..0000000000000000000000000000000000000000
--- a/conversations/conv_022975.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4356/cough/0016.wav",
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-      "start_time": 30.530700873640953,
-      "speaker_id": "4356"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022979.json b/conversations/conv_022979.json
deleted file mode 100644
index 19b17810ada0d5c0848d67ad5bc82f1abc805ad6..0000000000000000000000000000000000000000
--- a/conversations/conv_022979.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6199-80041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-80041.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.970124798553091,
-      "end_time": 13.740968049127883,
-      "duration": 6.770843250574791,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.759944898331298,
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-      "overlap": true,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-48196.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.245072576609104,
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-      "utterance_id": "3125-163698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-163698.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.0524783819364742,
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-      "utterance_id": "6199-80041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-80041.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 103229
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 30.28,
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-      "event_class": "cough",
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-      "speaker_id": "6199"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022980.json b/conversations/conv_022980.json
deleted file mode 100644
index 029ac06b7f80dcc035085c253669c494d33779b6..0000000000000000000000000000000000000000
--- a/conversations/conv_022980.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "91-123521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123521.flac |",
-      "real_speaker_id": "91",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.459574163750215,
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-      "utterance_id": "4379-190740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-190740.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 62224
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "91-123498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123498.flac |",
-      "real_speaker_id": "91",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.838259587690917,
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-      "duration": 4.210247880064507,
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-      "overlap": false,
-      "utterance_id": "4379-18039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18039.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.312394863891843,
-      "end_time": 32.0,
-      "duration": 2.687605136108157,
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-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "4379"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022981.json b/conversations/conv_022981.json
deleted file mode 100644
index 6cd7b4d7c3ef293f908a1f85b896b9793db62e19..0000000000000000000000000000000000000000
--- a/conversations/conv_022981.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.089661757886503,
-  "num_speakers": 3,
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-      "utterance_id": "5350-205002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205002.flac |",
-      "real_speaker_id": "5350",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-224.flac |",
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-    {
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-      "real_speaker_id": "811",
-      "position_frames": 0
-    }
-  ],
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_022996.json b/conversations/conv_022996.json
deleted file mode 100644
index 2a4dbb3f26291effe64c570bb28fe076484467e1..0000000000000000000000000000000000000000
--- a/conversations/conv_022996.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8791-291101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
-      "real_speaker_id": "8791",
-      "position_frames": 225882
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1337-10674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-10674.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 24.183320553657214
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_023000.json b/conversations/conv_023000.json
deleted file mode 100644
index 63ecb7bc0edf5fe4d91a3ed26ba886bd4e5c7c27..0000000000000000000000000000000000000000
--- a/conversations/conv_023000.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3144-166428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3144-166428.flac |",
-      "real_speaker_id": "3144",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.460242868198869,
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-      "duration": 4.2030486410915735,
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-      "utterance_id": "2790-142824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 0
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-1197.flac |",
-      "real_speaker_id": "5045",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 67248
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.15543376744302,
-      "end_time": 25.27450002517675,
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-      "duration_frames": 65905,
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-      "utterance_id": "5045-1197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-1197.flac |",
-      "real_speaker_id": "5045",
-      "position_frames": 81988
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.95507378996225,
-      "end_time": 31.027920598395802,
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-      "utterance_id": "2790-142824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 139871
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "5045-23290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-23290.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_023016.json b/conversations/conv_023016.json
deleted file mode 100644
index 6208fa2ec571e0ae86aa5075c17b649645ee1069..0000000000000000000000000000000000000000
--- a/conversations/conv_023016.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-82458.flac |",
-      "real_speaker_id": "2156",
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-      "real_speaker_id": "4310",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "6512-72577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6512-72577.flac |",
-      "real_speaker_id": "6512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.579434728533837,
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-      "overlap": false,
-      "utterance_id": "4310-14908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
-      "real_speaker_id": "4310",
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-      "segment_id": "seg0006",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_023017.json b/conversations/conv_023017.json
deleted file mode 100644
index 380aac349660bfb133c2eb364710efda9c882dea..0000000000000000000000000000000000000000
--- a/conversations/conv_023017.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "56-1731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1731.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "5636-41795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41795.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1732.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1731.flac |",
-      "real_speaker_id": "56",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "56-1730",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_023020.json b/conversations/conv_023020.json
deleted file mode 100644
index 060c42fa6a6dbbcb9f6c33610fb2d5006eb1bb33..0000000000000000000000000000000000000000
--- a/conversations/conv_023020.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "5672-88363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88363.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
-      "real_speaker_id": "7607",
-      "position_frames": 181022
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.064443375850672,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
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-  "background_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5672/laugh/0060.wav",
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-      "start_time": 0.6820291467283317,
-      "speaker_id": "5672"
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-      "event_class": "cough",
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-      "duration": 0.9635918792530866,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7607/laugh/0018.wav",
-      "duration": 1.9013575258701796,
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-      "speaker_id": "7607"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023036.json b/conversations/conv_023036.json
deleted file mode 100644
index e5ffc6745cbe449bce013002a21f7775ce173182..0000000000000000000000000000000000000000
--- a/conversations/conv_023036.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.859526832601357,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5583-41259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41259.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "4640-19188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19188.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "5583-38026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-38026.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 15.264082475459109,
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-      "overlap": true,
-      "utterance_id": "2301-134424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-134424.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.480180855487014,
-      "end_time": 25.260591643143727,
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-      "utterance_id": "2301-157471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157471.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41259.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 72746
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "duration": 1.28,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "5583"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023040.json b/conversations/conv_023040.json
deleted file mode 100644
index 48527c7e72a9c71c7fc7ab96b4cdf19e583b6e46..0000000000000000000000000000000000000000
--- a/conversations/conv_023040.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.727325921833007,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "85-121551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
-      "real_speaker_id": "85",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131294.flac |",
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-      "utterance_id": "927-132462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132462.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "868-131295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131295.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.3317191466589,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
-      "real_speaker_id": "85",
-      "position_frames": 91907
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132462.flac |",
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-      "position_frames": 95154
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-  "foreground_events": [
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-      "duration": 1.12,
-      "start_time": 23.32354818340533,
-      "speaker_id": "868"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023041.json b/conversations/conv_023041.json
deleted file mode 100644
index f768f669c62a4c57248233b9f3ce9d944334a181..0000000000000000000000000000000000000000
--- a/conversations/conv_023041.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "5321-53046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-53046.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.143897832187063,
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-      "utterance_id": "5636-41795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41795.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 57234,
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-      "utterance_id": "5321-53046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-53046.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 87463
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5321",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 79953,
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-      "utterance_id": "5321-53046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-53046.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 144697
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5321/laugh/0001.wav",
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-      "start_time": 3.127716512825349,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5321/laugh/0117.wav",
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-      "start_time": 14.061124022706105,
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-    {
-      "event_class": "cough",
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-      "start_time": 25.607821271202624,
-      "speaker_id": "412"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023057.json b/conversations/conv_023057.json
deleted file mode 100644
index 1a1b5f48d49dacc859a3f0f62eb50ddfea4d762a..0000000000000000000000000000000000000000
--- a/conversations/conv_023057.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "724-123283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123283.flac |",
-      "real_speaker_id": "724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "724-123284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123284.flac |",
-      "real_speaker_id": "724",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.633458157023874,
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-      "utterance_id": "5480-41606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41606.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 109921
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123283.flac |",
-      "real_speaker_id": "724",
-      "position_frames": 85609
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 0.9383633768334227,
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-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 20.315732269017605,
-      "speaker_id": "5480"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023061.json b/conversations/conv_023061.json
deleted file mode 100644
index ab0f734bf188b68b741af776db6dc2d7b8aae50b..0000000000000000000000000000000000000000
--- a/conversations/conv_023061.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1705-142318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
-      "real_speaker_id": "1705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.893185602818917,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-86748.flac |",
-      "real_speaker_id": "7348",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.25105237973045,
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-      "overlap": false,
-      "utterance_id": "1705-142318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
-      "real_speaker_id": "1705",
-      "position_frames": 86597
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.69635712160636,
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-      "utterance_id": "4738-291957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-291957.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.926069129787763,
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-      "overlap": false,
-      "utterance_id": "7348-86748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-86748.flac |",
-      "real_speaker_id": "7348",
-      "position_frames": 67631
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.67274401491173,
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-      "start_frame": 442763,
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-      "utterance_id": "1705-142318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
-      "real_speaker_id": "1705",
-      "position_frames": 171748
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "speaker_id": "7348"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023077.json b/conversations/conv_023077.json
deleted file mode 100644
index 79eabc61568932730b2ae8242afc8ac3d5670b9f..0000000000000000000000000000000000000000
--- a/conversations/conv_023077.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-94108.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-94108.flac |",
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-      "utterance_id": "6735-284431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-284431.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.387058620321245,
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-      "real_speaker_id": "7247",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.851999022838402,
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-      "overlap": false,
-      "utterance_id": "3368-170950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170950.flac |",
-      "real_speaker_id": "3368",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6735-66412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-66412.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023082.json b/conversations/conv_023082.json
deleted file mode 100644
index 8996ddc73c012214cc0ac4b61728e0fdedecaffe..0000000000000000000000000000000000000000
--- a/conversations/conv_023082.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-83692.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
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-    {
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-    {
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_023085.json b/conversations/conv_023085.json
deleted file mode 100644
index 7189c95715547e2831621a62aac253d5a5291795..0000000000000000000000000000000000000000
--- a/conversations/conv_023085.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "345-1120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7498",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "1093",
-      "position_frames": 87953
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-      "segment_id": "seg0004",
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-      "utterance_id": "345-1120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
-      "real_speaker_id": "345",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "1093",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "1093"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023093.json b/conversations/conv_023093.json
deleted file mode 100644
index 6b3a241449c8c27f880390fbcb2ef1678e7be64a..0000000000000000000000000000000000000000
--- a/conversations/conv_023093.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.066431803227434,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.231945312469559,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133248.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133248.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 73149
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.781332351859962,
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-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 177664
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.496689333720855,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 253931
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023094.json b/conversations/conv_023094.json
deleted file mode 100644
index 9fd390e11c834289df5e50985196b95ef48c9d1a..0000000000000000000000000000000000000000
--- a/conversations/conv_023094.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152160.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275128.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 84992
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 21.391397260010002,
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-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 139064
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.779652710225587,
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-      "start_frame": 412474,
-      "duration_frames": 99525,
-      "overlap": false,
-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 191911
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8300/laugh/0035.wav",
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-      "start_time": 11.644620246800606,
-      "speaker_id": "8300"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/173/laugh/0008.wav",
-      "duration": 0.542192820137224,
-      "start_time": 28.753955318301973,
-      "speaker_id": "173"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/173/cough/0043.wav",
-      "duration": 1.433554788348385,
-      "start_time": 30.566445211651615,
-      "speaker_id": "173"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023098.json b/conversations/conv_023098.json
deleted file mode 100644
index 3a92619ac673a6ae133ae7552839914d3b759486..0000000000000000000000000000000000000000
--- a/conversations/conv_023098.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.488734932275905,
-      "duration": 4.488734932275905,
-      "start_frame": 0,
-      "duration_frames": 71819,
-      "overlap": false,
-      "utterance_id": "4853-27671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-27671.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.886990593962784,
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-      "duration_frames": 49348,
-      "overlap": false,
-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.581615343186083,
-      "end_time": 13.231583717634486,
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-      "overlap": false,
-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.625907843025185,
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-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 49348
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.84177125902835,
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-      "overlap": true,
-      "utterance_id": "8591-284445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284445.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.554979098660482,
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-      "duration_frames": 64106,
-      "overlap": false,
-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 112659
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.990857990920198,
-      "end_time": 32.0,
-      "duration": 2.0091420090798024,
-      "start_frame": 479853,
-      "duration_frames": 32146,
-      "overlap": false,
-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 74399
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 3.293851474568281,
-      "speaker_id": "4853"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8591/laugh/0057.wav",
-      "duration": 1.48,
-      "start_time": 6.98968791387092,
-      "speaker_id": "8591"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8591/laugh/0024.wav",
-      "duration": 1.106174630012498,
-      "start_time": 30.893825369987503,
-      "speaker_id": "8591"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023104.json b/conversations/conv_023104.json
deleted file mode 100644
index fb5cbfd218c261a4a0af10ee6ece478815d63607..0000000000000000000000000000000000000000
--- a/conversations/conv_023104.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_023105.json b/conversations/conv_023105.json
deleted file mode 100644
index 9f25223638e08c04e4f091ea037fc9ab7e0483b1..0000000000000000000000000000000000000000
--- a/conversations/conv_023105.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8012",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_023108.json b/conversations/conv_023108.json
deleted file mode 100644
index c27011da696bad9b304dab06dc9a6b9d4caf94e6..0000000000000000000000000000000000000000
--- a/conversations/conv_023108.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "720",
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-      "real_speaker_id": "3557",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_023112.json b/conversations/conv_023112.json
deleted file mode 100644
index 52ce4b244b9974ac1437b4703493ee52431d51b9..0000000000000000000000000000000000000000
--- a/conversations/conv_023112.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6126-10992.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_023124.json b/conversations/conv_023124.json
deleted file mode 100644
index 646b4bd6326eb1f31f8a7d7c1e610c85283c86b5..0000000000000000000000000000000000000000
--- a/conversations/conv_023124.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.40628522498904,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.562374846762526,
-      "duration": 3.562374846762526,
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-      "duration_frames": 56997,
-      "overlap": false,
-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.753263856986354,
-      "end_time": 9.865498438367872,
-      "duration": 6.112234581381519,
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-      "utterance_id": "2730-154437",
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-      "real_speaker_id": "2730",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.572046935840737,
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-      "duration": 4.709954985271242,
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-      "overlap": false,
-      "utterance_id": "3906-23193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-23193.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.401506199038582,
-      "end_time": 20.95935454722007,
-      "duration": 5.557848348181486,
-      "start_frame": 246424,
-      "duration_frames": 88925,
-      "overlap": false,
-      "utterance_id": "2730-154436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154436.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.41794671198592,
-      "end_time": 27.39308487476754,
-      "duration": 5.975138162781619,
-      "start_frame": 342687,
-      "duration_frames": 95602,
-      "overlap": false,
-      "utterance_id": "3906-184005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-184005.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.40351070276325,
-      "end_time": 31.40628522498904,
-      "duration": 3.0027745222257938,
-      "start_frame": 454456,
-      "duration_frames": 48044,
-      "overlap": false,
-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 56997
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 1.6414181403033248,
-      "start_time": 28.80703054759883
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3906/laugh/0031.wav",
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-      "start_time": 22.808117136238224,
-      "speaker_id": "3906"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023128.json b/conversations/conv_023128.json
deleted file mode 100644
index d1f84a764844bbf1708a293d4a766dbe6bbaf68d..0000000000000000000000000000000000000000
--- a/conversations/conv_023128.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.0302589268690365,
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-      "start_frame": 0,
-      "duration_frames": 80484,
-      "overlap": false,
-      "utterance_id": "4222-187005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-187005.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.163552979350055,
-      "end_time": 9.046668381730232,
-      "duration": 3.8831154023801755,
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-      "duration_frames": 62129,
-      "overlap": false,
-      "utterance_id": "5700-51744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51744.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 88152,
-      "overlap": false,
-      "utterance_id": "4222-187005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-187005.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 80484
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.796438751896673,
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-      "utterance_id": "6610-70916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-70916.flac |",
-      "real_speaker_id": "6610",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.853339350643033,
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-      "utterance_id": "4222-187005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-187005.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 168636
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.89544112247129,
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-      "overlap": false,
-      "utterance_id": "4222-12898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-12898.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.762060456480764,
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-      "duration": 1.2379395435192357,
-      "start_frame": 492192,
-      "duration_frames": 19807,
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-      "utterance_id": "5700-51758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51758.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_2.wav",
-      "duration": 0.5918140589569161,
-      "start_time": 29.3817763743239
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.16,
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.0,
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-      "speaker_id": "4222"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5700/laugh/0057.wav",
-      "duration": 1.255005833988596,
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-      "speaker_id": "5700"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023132.json b/conversations/conv_023132.json
deleted file mode 100644
index 18945a4ccf691c8d8bcff54958685de89c214b12..0000000000000000000000000000000000000000
--- a/conversations/conv_023132.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7447-91187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91187.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.4706299503626,
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-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91187.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 67446
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-134636.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.22397108298879,
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-      "utterance_id": "1607-150715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-150715.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.01526633313103,
-      "end_time": 27.902303540166137,
-      "duration": 3.887037207035105,
-      "start_frame": 384244,
-      "duration_frames": 62192,
-      "overlap": false,
-      "utterance_id": "1607-150715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-150715.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 64821
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.23107152998287,
-      "end_time": 32.0,
-      "duration": 3.76892847001713,
-      "start_frame": 451697,
-      "duration_frames": 60302,
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-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 62212
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1607/laugh/0007.wav",
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-      "start_time": 13.226380487940853,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1607/laugh/0066.wav",
-      "duration": 1.24,
-      "start_time": 21.20665717014878,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1607/cough/0087.wav",
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-      "start_time": 23.395464962766948,
-      "speaker_id": "1607"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023139.json b/conversations/conv_023139.json
deleted file mode 100644
index 880a100bff896ed7724312c33e63cee4314939b5..0000000000000000000000000000000000000000
--- a/conversations/conv_023139.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6913-80509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.796153625657209,
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-      "utterance_id": "6913-80509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 73439
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 167283
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "5445",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Frying",
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-      "duration": 1.12,
-      "start_time": 17.842977893709506,
-      "speaker_id": "6913"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3571/laugh/0030.wav",
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-      "speaker_id": "3571"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "3571"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3571/cough/0072.wav",
-      "duration": 0.6084187345658383,
-      "start_time": 31.391581265434162,
-      "speaker_id": "3571"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023145.json b/conversations/conv_023145.json
deleted file mode 100644
index 730604033decf62201b12cd175406f76e78072ca..0000000000000000000000000000000000000000
--- a/conversations/conv_023145.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.604107418268369,
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-      "overlap": false,
-      "utterance_id": "6078-54013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54013.flac |",
-      "real_speaker_id": "6078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.2883152312751625,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43316.flac |",
-      "real_speaker_id": "5772",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-87547.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
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-      "utterance_id": "3977-185457",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185457.flac |",
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-      "utterance_id": "5772-43331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43331.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3977-185466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185466.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.13742490648071,
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-      "utterance_id": "6078-54013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54013.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-      "speaker_id": "3977"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023149.json b/conversations/conv_023149.json
deleted file mode 100644
index c60602c192bb8b1f576051981d973b56dfed3148..0000000000000000000000000000000000000000
--- a/conversations/conv_023149.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5940-54016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54016.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54016.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 98683
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "225-131276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131276.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7559/laugh/0081.wav",
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-    {
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-      "duration": 0.5951903909719513,
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-      "speaker_id": "5940"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023152.json b/conversations/conv_023152.json
deleted file mode 100644
index 1d00cc1a725249698ad67bb120748a6f7c021f3a..0000000000000000000000000000000000000000
--- a/conversations/conv_023152.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.096611977352442,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4447-14912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14912.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121770.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "4447-14919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "real_speaker_id": "3994",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 102650
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-  "foreground_events": [
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_023153.json b/conversations/conv_023153.json
deleted file mode 100644
index fd760fed217322b631aa59a3de5fde1178be1dd2..0000000000000000000000000000000000000000
--- a/conversations/conv_023153.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5233-39051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-39051.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "444",
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-      "utterance_id": "5233-28390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28390.flac |",
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-    {
-      "segment_id": "seg0003",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.48,
-      "start_time": 2.5905332826670886,
-      "speaker_id": "5233"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5233/cough/0074.wav",
-      "duration": 0.5010130537187485,
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-      "speaker_id": "5233"
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-      "duration": 0.6070091762073865,
-      "start_time": 30.2057371370907,
-      "speaker_id": "444"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023165.json b/conversations/conv_023165.json
deleted file mode 100644
index e37ebcf4e558e38c5ab7cb98e574e9a3505e366a..0000000000000000000000000000000000000000
--- a/conversations/conv_023165.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6506-10073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-10073.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.238638850555715,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3069.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3061.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-10073.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3069.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 89785
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6506-73020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-73020.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.60542396282543,
-      "end_time": 32.0,
-      "duration": 2.39457603717457,
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-      "duration_frames": 38313,
-      "overlap": false,
-      "utterance_id": "4059-3059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3059.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
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-      "duration": 1.16,
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-      "speaker_id": "6506"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023169.json b/conversations/conv_023169.json
deleted file mode 100644
index 3a90b38d0f961ad889f71152183383ada51c67ec..0000000000000000000000000000000000000000
--- a/conversations/conv_023169.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.753488909705972,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.197163800331933,
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-      "utterance_id": "829-123191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/829-123191.flac |",
-      "real_speaker_id": "829",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.66589468037959,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.876909775654141,
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-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 62760
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/829-123191.flac |",
-      "real_speaker_id": "829",
-      "position_frames": 99154
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-      "start_time": 21.25764244747316,
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-      "utterance_id": "4020-180307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180307.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.61806532744953,
-      "end_time": 31.753488909705972,
-      "duration": 6.135423582256443,
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-      "duration_frames": 98166,
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-      "utterance_id": "829-123191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/829-123191.flac |",
-      "real_speaker_id": "829",
-      "position_frames": 179673
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4305/laugh/0051.wav",
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-      "start_time": 8.36182779174839,
-      "speaker_id": "4305"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/829/laugh/0044.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/829/laugh/0011.wav",
-      "duration": 0.8568452774578993,
-      "start_time": 25.973553414300998,
-      "speaker_id": "829"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023173.json b/conversations/conv_023173.json
deleted file mode 100644
index a1b0226a34ea04ff256b5943c743debc5dfc29cd..0000000000000000000000000000000000000000
--- a/conversations/conv_023173.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "7925-271896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-271896.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.611378796905617,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6743-72306.flac |",
-      "real_speaker_id": "6743",
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-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-271896.flac |",
-      "real_speaker_id": "7925",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 71289
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7925-111766",
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-      "real_speaker_id": "7925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.818639866973562,
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-      "duration": 2.1813601330264376,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6743-72306.flac |",
-      "real_speaker_id": "6743",
-      "position_frames": 48686
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7925/laugh/0089.wav",
-      "duration": 0.763356653145258,
-      "start_time": 29.649318790009666,
-      "speaker_id": "7925"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023178.json b/conversations/conv_023178.json
deleted file mode 100644
index f09dd19349f369447e08e4ebc709fe8c095f7017..0000000000000000000000000000000000000000
--- a/conversations/conv_023178.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.322822666717055,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.345972018257744,
-      "duration": 4.345972018257744,
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125349.flac |",
-      "real_speaker_id": "542",
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-    {
-      "segment_id": "seg0002",
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-      "speaker_id": "542"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023181.json b/conversations/conv_023181.json
deleted file mode 100644
index cb450bd87024e5eb6fa46146e4af6f4900a70cd6..0000000000000000000000000000000000000000
--- a/conversations/conv_023181.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-88089.flac |",
-      "real_speaker_id": "6406",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-88089.flac |",
-      "real_speaker_id": "6406",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5183-29124.flac |",
-      "real_speaker_id": "5183",
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-      "utterance_id": "6406-89940",
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-      "utterance_id": "5183-66175",
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_023186.json b/conversations/conv_023186.json
deleted file mode 100644
index 65e2038acb0b1d754c5e6a62eb185619b7c48a57..0000000000000000000000000000000000000000
--- a/conversations/conv_023186.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "1027",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 93459
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "4010",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 165157
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023190.json b/conversations/conv_023190.json
deleted file mode 100644
index dabc1ebc5f14de7f700aa58664bffc5558331c19..0000000000000000000000000000000000000000
--- a/conversations/conv_023190.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.727128998183964,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8592-285135.flac |",
-      "real_speaker_id": "8592",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8592-285135.flac |",
-      "real_speaker_id": "8592",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "466-134208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134208.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_023197.json b/conversations/conv_023197.json
deleted file mode 100644
index 3a31537e38cb08837b5f8561f460a294bb94a4b4..0000000000000000000000000000000000000000
--- a/conversations/conv_023197.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "5519-39481",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5519-39481.flac |",
-      "real_speaker_id": "5519",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_023201.json b/conversations/conv_023201.json
deleted file mode 100644
index a9dbfa10a933379d0f9b0bd7bed0729c7f35b5df..0000000000000000000000000000000000000000
--- a/conversations/conv_023201.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-128284.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-121900.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 96169
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-      "position_frames": 180920
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-}
\ No newline at end of file
diff --git a/conversations/conv_023206.json b/conversations/conv_023206.json
deleted file mode 100644
index e3f420ca2395cb78313d72a42637ac76e27955ae..0000000000000000000000000000000000000000
--- a/conversations/conv_023206.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.703476312369506,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-280389.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_023210.json b/conversations/conv_023210.json
deleted file mode 100644
index 34d0f853efaf468a414e1cde79d44b1235f78df4..0000000000000000000000000000000000000000
--- a/conversations/conv_023210.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
-      "real_speaker_id": "403",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_023217.json b/conversations/conv_023217.json
deleted file mode 100644
index a8fda8d27cd7a23472e57340fdedc6c69a5524a4..0000000000000000000000000000000000000000
--- a/conversations/conv_023217.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
-      "real_speaker_id": "2491",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_023221.json b/conversations/conv_023221.json
deleted file mode 100644
index 335a8d74e79464b38a8d3b44fbf8d8959087765b..0000000000000000000000000000000000000000
--- a/conversations/conv_023221.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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\ No newline at end of file
diff --git a/conversations/conv_023237.json b/conversations/conv_023237.json
deleted file mode 100644
index 89c75a767408dfedb086f6550790b5a456d94aa0..0000000000000000000000000000000000000000
--- a/conversations/conv_023237.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-}
\ No newline at end of file
diff --git a/conversations/conv_023240.json b/conversations/conv_023240.json
deleted file mode 100644
index 40a54281db565510e3c6f35f77f087b02f85e4ff..0000000000000000000000000000000000000000
--- a/conversations/conv_023240.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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-      "duration": 1.1506651335924103,
-      "start_time": 10.242597632253998,
-      "speaker_id": "5172"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2485/laugh/0140.wav",
-      "duration": 1.32,
-      "start_time": 20.433087822525383,
-      "speaker_id": "2485"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023247.json b/conversations/conv_023247.json
deleted file mode 100644
index 5a0a855f35b7e770a69c31838e76a08b3b9dcb88..0000000000000000000000000000000000000000
--- a/conversations/conv_023247.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "70-121130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121130.flac |",
-      "real_speaker_id": "70",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121130.flac |",
-      "real_speaker_id": "70",
-      "position_frames": 109774
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-      "speaker_id": 2,
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-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.021749315631975,
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-      "overlap": false,
-      "utterance_id": "70-121130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121130.flac |",
-      "real_speaker_id": "70",
-      "position_frames": 191739
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.51698222275474,
-      "end_time": 32.0,
-      "duration": 2.4830177772452586,
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-      "duration_frames": 39728,
-      "overlap": false,
-      "utterance_id": "4480-44312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 80737
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.16,
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-      "event_class": "cough",
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-      "duration": 0.64,
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-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 30.52495006052439,
-      "speaker_id": "4480"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023251.json b/conversations/conv_023251.json
deleted file mode 100644
index 42d63519815bd2248ef09c45ed7d259df8384798..0000000000000000000000000000000000000000
--- a/conversations/conv_023251.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-294466.flac |",
-      "real_speaker_id": "4788",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-94904.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 180819
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.256705154717757,
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-      "duration": 4.743294845282243,
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-      "overlap": false,
-      "utterance_id": "4788-94904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-94904.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 56591
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-      "event_class": "Dishes",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4788/laugh/0104.wav",
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-      "speaker_id": "4788"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023256.json b/conversations/conv_023256.json
deleted file mode 100644
index ac62d2917a3c3e95fa1de362c6f2f579473c398c..0000000000000000000000000000000000000000
--- a/conversations/conv_023256.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "2769",
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-      "utterance_id": "2769-176263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2769-176263.flac |",
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-      "real_speaker_id": "4463",
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-      "real_speaker_id": "7155",
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 53396
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-}
\ No newline at end of file
diff --git a/conversations/conv_023260.json b/conversations/conv_023260.json
deleted file mode 100644
index 374a770f4f0f104a477c381ce6a249b6a4d0a61b..0000000000000000000000000000000000000000
--- a/conversations/conv_023260.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-132570.flac |",
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-      "utterance_id": "2007-149877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-149877.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.96087377797051,
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-      "duration": 3.0391262220294912,
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-      "utterance_id": "6883-66623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6883-66623.flac |",
-      "real_speaker_id": "6883",
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-      "start_time": 0,
-      "speaker_id": "2007"
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-      "duration": 1.08,
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-      "speaker_id": "3843"
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-      "speaker_id": "3843"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023276.json b/conversations/conv_023276.json
deleted file mode 100644
index 35ceedb0a1ae131104a2efe400e58aec8a901c19..0000000000000000000000000000000000000000
--- a/conversations/conv_023276.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3109-144137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-144137.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.200236316581455,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96682.flac |",
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-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 17.83916525838126,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.857335256663866,
-      "end_time": 28.571173721657125,
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-      "utterance_id": "7649-96667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96667.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.909019717603517,
-      "end_time": 32.0,
-      "duration": 3.090980282396483,
-      "start_frame": 462544,
-      "duration_frames": 49455,
-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 71541
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 0.9529297483847797,
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-      "event_class": "cough",
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-      "duration": 0.48242140548498014,
-      "start_time": 31.51757859451502,
-      "speaker_id": "7957"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023283.json b/conversations/conv_023283.json
deleted file mode 100644
index 630cbdc102e17b5f2dbc4cc72c06dbb6eee7a95c..0000000000000000000000000000000000000000
--- a/conversations/conv_023283.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1898-145702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145702.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.487791111647369,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
-      "real_speaker_id": "8479",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145702.flac |",
-      "real_speaker_id": "1898",
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-      "utterance_id": "8479-276730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
-      "real_speaker_id": "8479",
-      "position_frames": 65062
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "8479-276730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
-      "real_speaker_id": "8479",
-      "position_frames": 131829
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.33138362180385,
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-      "utterance_id": "1898-145715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145715.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
-    {
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-      "duration": 0.96,
-      "start_time": 15.19544548521011,
-      "speaker_id": "8479"
-    },
-    {
-      "event_class": "cough",
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-      "speaker_id": "1898"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023284.json b/conversations/conv_023284.json
deleted file mode 100644
index 38c1de7a698076a9771deede1a58185d813e6845..0000000000000000000000000000000000000000
--- a/conversations/conv_023284.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4860-13185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4860-13185.flac |",
-      "real_speaker_id": "4860",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.463892078406927,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-96582.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6668-34612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34612.flac |",
-      "real_speaker_id": "6668",
-      "position_frames": 0
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-    {
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-      "utterance_id": "572-128861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-128861.flac |",
-      "real_speaker_id": "572",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "6668",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4860-13185",
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-      "real_speaker_id": "4860",
-      "position_frames": 85543
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 1.0163559306978271,
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-      "utterance_id": "572-96582",
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-      "real_speaker_id": "572",
-      "position_frames": 83716
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6668/laugh/0012.wav",
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-      "start_time": 25.2908732442497,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/572/laugh/0071.wav",
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-      "start_time": 31.164238636465036,
-      "speaker_id": "572"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023294.json b/conversations/conv_023294.json
deleted file mode 100644
index e78982bcd8884e07d6363505c4c5763ae4459682..0000000000000000000000000000000000000000
--- a/conversations/conv_023294.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.68853705821523,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "5060-15562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5588-68188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-68188.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.115469289670344,
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-      "utterance_id": "5401-102526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-102526.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "5060-15562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 72021
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-      "segment_id": "seg0004",
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-      "start_time": 20.80293150294924,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-102526.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 86929
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.77650820703889,
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-      "utterance_id": "5060-15556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15556.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.367587366203733,
-      "end_time": 31.68853705821523,
-      "duration": 0.3209496920114958,
-      "start_frame": 501881,
-      "duration_frames": 5135,
-      "overlap": true,
-      "utterance_id": "5401-39515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39515.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
-      "duration": 0.672108843537415,
-      "start_time": 11.8414256790034
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
-      "duration": 0.31501133786848073,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5060/laugh/0049.wav",
-      "duration": 1.4,
-      "start_time": 2.828625168947305,
-      "speaker_id": "5060"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5060/cough/0058.wav",
-      "duration": 1.3,
-      "start_time": 0,
-      "speaker_id": "5060"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5401/laugh/0004.wav",
-      "duration": 1.583851902674669,
-      "start_time": 21.571767933895135,
-      "speaker_id": "5401"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5060/laugh/0002.wav",
-      "duration": 1.0855656056238998,
-      "start_time": 28.109940912282593,
-      "speaker_id": "5060"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023295.json b/conversations/conv_023295.json
deleted file mode 100644
index c0398fdb66dc1ddd6f3b2951a4907d6605873541..0000000000000000000000000000000000000000
--- a/conversations/conv_023295.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.194659064009015,
-      "duration": 6.194659064009015,
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-      "overlap": false,
-      "utterance_id": "542-125348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125348.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.741239481201205,
-      "end_time": 11.133072584932581,
-      "duration": 4.391833103731376,
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-      "overlap": true,
-      "utterance_id": "1649-68762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1649-68762.flac |",
-      "real_speaker_id": "1649",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 71168,
-      "overlap": true,
-      "utterance_id": "542-125348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125348.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 99114
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.129759684958046,
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-      "overlap": true,
-      "utterance_id": "1649-150127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1649-150127.flac |",
-      "real_speaker_id": "1649",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.523170440488364,
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-      "utterance_id": "542-125351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125351.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.700798321962424,
-      "end_time": 32.0,
-      "duration": 3.2992016780375764,
-      "start_frame": 459212,
-      "duration_frames": 52787,
-      "overlap": false,
-      "utterance_id": "542-125348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125348.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 170282
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/542/laugh/0040.wav",
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-      "start_time": 0,
-      "speaker_id": "542"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/542/cough/0026.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-    {
-      "event_class": "cough",
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-      "duration": 0.92,
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-      "speaker_id": "542"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_023299.json b/conversations/conv_023299.json
deleted file mode 100644
index 77a6a1cc82a713a774e8714671c6a14ea2579a56..0000000000000000000000000000000000000000
--- a/conversations/conv_023299.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.880760562690824,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7318-96151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
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-    {
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-      "start_time": 5.548701371211431,
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-      "overlap": false,
-      "utterance_id": "6339-65554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 11.3125513073711,
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-      "overlap": false,
-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.185718250906355,
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-      "utterance_id": "6339-65554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 85293
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.597919566964006,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 80073
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_2.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.4753299239166027,
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2051/cough/0071.wav",
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-      "speaker_id": "2051"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023302.json b/conversations/conv_023302.json
deleted file mode 100644
index 9efcf817391ba46ed0ad35dfc1cf2026dc4669e7..0000000000000000000000000000000000000000
--- a/conversations/conv_023302.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.80227635193702,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.157214288439832,
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-      "duration_frames": 82515,
-      "overlap": false,
-      "utterance_id": "1425-139291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139291.flac |",
-      "real_speaker_id": "1425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.60446872757739,
-      "end_time": 11.397049167608554,
-      "duration": 5.792580440031163,
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-      "duration_frames": 92681,
-      "overlap": false,
-      "utterance_id": "3448-5416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5416.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.923120786892198,
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-      "duration": 6.811247811493049,
-      "start_frame": 190769,
-      "duration_frames": 108979,
-      "overlap": false,
-      "utterance_id": "3448-5417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5417.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.819224952115455,
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-      "start_frame": 317107,
-      "duration_frames": 91632,
-      "overlap": false,
-      "utterance_id": "2380-152158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.21783063062387,
-      "end_time": 31.80227635193702,
-      "duration": 5.584445721313152,
-      "start_frame": 419485,
-      "duration_frames": 89351,
-      "overlap": false,
-      "utterance_id": "3448-5416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5416.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 92681
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 19.896450300690034,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 2.247641723356009,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.196116452542682,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3448/cough/0093.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2380/laugh/0018.wav",
-      "duration": 1.3063309476253675,
-      "start_time": 18.23450920751838,
-      "speaker_id": "2380"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023305.json b/conversations/conv_023305.json
deleted file mode 100644
index 85d00fd4817739f69bfcd7a65bb75dcf8b24130b..0000000000000000000000000000000000000000
--- a/conversations/conv_023305.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.695723410526345,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.283655359186277,
-      "duration": 6.283655359186277,
-      "start_frame": 0,
-      "duration_frames": 100538,
-      "overlap": false,
-      "utterance_id": "421-128336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.370556042572507,
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-      "duration": 4.268945484008591,
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-      "duration_frames": 68303,
-      "overlap": false,
-      "utterance_id": "2294-161714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161714.flac |",
-      "real_speaker_id": "2294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.248294214362886,
-      "end_time": 17.509059006737665,
-      "duration": 5.260764792374778,
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_023309.json b/conversations/conv_023309.json
deleted file mode 100644
index 72f4f48d33a32c6b94851f0ed5eff6904b479294..0000000000000000000000000000000000000000
--- a/conversations/conv_023309.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.540756853315642,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7189",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-74189.flac |",
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-      "position_frames": 89492
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.33806411628838,
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-      "utterance_id": "7189-74189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-74189.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 174091
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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\ No newline at end of file
diff --git a/conversations/conv_023313.json b/conversations/conv_023313.json
deleted file mode 100644
index 223c1224984c1855996380a5a6b417f3a6756992..0000000000000000000000000000000000000000
--- a/conversations/conv_023313.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "real_speaker_id": "8415",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1737-148989",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-148989.flac |",
-      "real_speaker_id": "1737",
-      "position_frames": 67567
-    }
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023314.json b/conversations/conv_023314.json
deleted file mode 100644
index 41f88b72291497a9393bc25301c9eed4401876af..0000000000000000000000000000000000000000
--- a/conversations/conv_023314.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2092-145706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145706.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.3865376078642475,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-143521.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145709.flac |",
-      "real_speaker_id": "2092",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "5778-12761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-12761.flac |",
-      "real_speaker_id": "5778",
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-    {
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-      "speaker_id": 2,
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-      "real_speaker_id": "1913",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2092-145706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145706.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 100858
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5778/laugh/0037.wav",
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-      "speaker_id": "5778"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023325.json b/conversations/conv_023325.json
deleted file mode 100644
index 1924788fdd14fe51f5a34405b4976c76bdcb826c..0000000000000000000000000000000000000000
--- a/conversations/conv_023325.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4111",
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-      "real_speaker_id": "1166",
-      "position_frames": 97249
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-14986.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 27.82014267737076,
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-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-      "speaker_id": "5791"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1166/laugh/0066.wav",
-      "duration": 0.8017501423990177,
-      "start_time": 22.938512362680314,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1166/cough/0043.wav",
-      "duration": 0.8168912411986171,
-      "start_time": 15.391349127223407,
-      "speaker_id": "1166"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023329.json b/conversations/conv_023329.json
deleted file mode 100644
index 48eb0a0216e2018bfafa0c5961c0f544a8845a74..0000000000000000000000000000000000000000
--- a/conversations/conv_023329.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8300-275128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275128.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.531396687281862,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275127.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-170379.flac |",
-      "real_speaker_id": "2196",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 18.25879352686927,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275127.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 58602
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-170379.flac |",
-      "real_speaker_id": "2196",
-      "position_frames": 73329
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.0839206042613,
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-      "utterance_id": "8300-275127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275127.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_023333.json b/conversations/conv_023333.json
deleted file mode 100644
index 751b4d31f9c3695999c4a35fbda3c2a9e4ebe829..0000000000000000000000000000000000000000
--- a/conversations/conv_023333.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.838852834011565,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2487-169011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169011.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
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-      "position_frames": 0
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-      "start_time": 10.23079288115757,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169011.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 79703
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.759410192450652,
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-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.899486328351962,
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-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 80429
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-      "segment_id": "seg0005",
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-      "utterance_id": "2487-162474",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_023343.json b/conversations/conv_023343.json
deleted file mode 100644
index 7eb32d6ca80b1929b369d318cc530fa60e80584e..0000000000000000000000000000000000000000
--- a/conversations/conv_023343.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1274-121771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121771.flac |",
-      "real_speaker_id": "1274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7859-102521",
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-      "real_speaker_id": "7859",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1274-121771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121771.flac |",
-      "real_speaker_id": "1274",
-      "position_frames": 85289
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-35690.flac |",
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-    {
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-      "real_speaker_id": "5750",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7859-102521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7859-102521.flac |",
-      "real_speaker_id": "7859",
-      "position_frames": 76715
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "5750-35690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-35690.flac |",
-      "real_speaker_id": "5750",
-      "position_frames": 50370
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_13.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5750/cough/0017.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023344.json b/conversations/conv_023344.json
deleted file mode 100644
index 65ba54781d639a793d4bd90567c2e741e47ad3e3..0000000000000000000000000000000000000000
--- a/conversations/conv_023344.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_023348.json b/conversations/conv_023348.json
deleted file mode 100644
index c00a3613049015c91c9abf97ee9d6b6067260c6d..0000000000000000000000000000000000000000
--- a/conversations/conv_023348.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-63496.flac |",
-      "real_speaker_id": "4015",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 162281
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_023352.json b/conversations/conv_023352.json
deleted file mode 100644
index 272fc1f22f17afd80e4c4b693a352e6159c0b90f..0000000000000000000000000000000000000000
--- a/conversations/conv_023352.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 2,
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-      "position_frames": 0
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-    },
-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023355.json b/conversations/conv_023355.json
deleted file mode 100644
index d76508195add951cf0f179072a211c42888792c7..0000000000000000000000000000000000000000
--- a/conversations/conv_023355.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/203/cough/0013.wav",
-      "duration": 1.2388047555135617,
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-      "speaker_id": "203"
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-      "speaker_id": "203"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_023364.json b/conversations/conv_023364.json
deleted file mode 100644
index 7be8474500bbf11ff0e323df34a9df5c4dea16b1..0000000000000000000000000000000000000000
--- a/conversations/conv_023364.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5393-19218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19218.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.7171619773308056,
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-      "utterance_id": "7540-101799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101799.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.455783391047209,
-      "end_time": 14.572453355058423,
-      "duration": 3.116669964011214,
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-      "overlap": true,
-      "utterance_id": "5393-19219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19219.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.754629456003261,
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-      "duration": 6.053722518957829,
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-      "overlap": true,
-      "utterance_id": "7540-101262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101262.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.592762844446497,
-      "end_time": 27.747299813131136,
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-      "overlap": false,
-      "utterance_id": "5393-19218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19218.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 85534
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.513746644111333,
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-      "duration": 3.4862533558886675,
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-      "utterance_id": "7540-101799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101799.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 94665
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7540/cough/0007.wav",
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-      "event_class": "laugh",
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-      "duration": 0.6387288972671474,
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-      "speaker_id": "5393"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023368.json b/conversations/conv_023368.json
deleted file mode 100644
index cafb8b098fce132afc5bf52a3562b76609194446..0000000000000000000000000000000000000000
--- a/conversations/conv_023368.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "utterance_id": "753-150477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-150477.flac |",
-      "real_speaker_id": "753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.050401180579126,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-32846.flac |",
-      "real_speaker_id": "753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.129487657609364,
-      "end_time": 32.0,
-      "duration": 5.8705123423906365,
-      "start_frame": 418071,
-      "duration_frames": 93928,
-      "overlap": false,
-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 64413
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 25.280665538268504,
-      "speaker_id": "753"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023369.json b/conversations/conv_023369.json
deleted file mode 100644
index e3d8f93bace220b834775828366fc733157921de..0000000000000000000000000000000000000000
--- a/conversations/conv_023369.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.40539991681292,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "2817-142371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.8047167557109,
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-      "real_speaker_id": "948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "948-132705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132705.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.822935317009026,
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-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
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-      "position_frames": 78397
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-      "start_time": 30.44,
-      "speaker_id": "2817"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023372.json b/conversations/conv_023372.json
deleted file mode 100644
index 080ca8416f64c08f04507a9da0a40cb2fd242ea6..0000000000000000000000000000000000000000
--- a/conversations/conv_023372.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6373-65772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-121722.flac |",
-      "real_speaker_id": "119",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
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-      "start_time": 15.695945046099094,
-      "speaker_id": "6373"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/510/laugh/0089.wav",
-      "duration": 1.2,
-      "start_time": 22.35347942993824,
-      "speaker_id": "510"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6373/laugh/0004.wav",
-      "duration": 1.08,
-      "start_time": 30.635749550090424,
-      "speaker_id": "6373"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023387.json b/conversations/conv_023387.json
deleted file mode 100644
index fd212e4f9eb0c3b0570cb3b387afafe89e07178e..0000000000000000000000000000000000000000
--- a/conversations/conv_023387.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2021-169435",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-169435.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.247055610723968,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-115688.flac |",
-      "real_speaker_id": "7786",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.272726585600195,
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-      "utterance_id": "7700-92919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92919.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.7910863700611,
-      "end_time": 22.50639952631122,
-      "duration": 5.7153131562501205,
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-      "duration_frames": 91445,
-      "overlap": true,
-      "utterance_id": "7786-118693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-118693.flac |",
-      "real_speaker_id": "7786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.2563485662915,
-      "end_time": 27.40443607367074,
-      "duration": 4.148087507379241,
-      "start_frame": 372101,
-      "duration_frames": 66369,
-      "overlap": false,
-      "utterance_id": "7700-92919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92919.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 80284
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.666196791965515,
-      "end_time": 32.0,
-      "duration": 4.333803208034485,
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-      "overlap": false,
-      "utterance_id": "7786-118675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-118675.flac |",
-      "real_speaker_id": "7786",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "2021"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7786/cough/0135.wav",
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-      "start_time": 27.121913799820074,
-      "speaker_id": "7786"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023391.json b/conversations/conv_023391.json
deleted file mode 100644
index f8836eb8af82fe480721861bbb2887453c510ae9..0000000000000000000000000000000000000000
--- a/conversations/conv_023391.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.860740308928847,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.625905009105123,
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-      "utterance_id": "4411-14494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14494.flac |",
-      "real_speaker_id": "4411",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
-      "real_speaker_id": "8791",
-      "position_frames": 106601
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-      "utterance_id": "4411-14494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14494.flac |",
-      "real_speaker_id": "4411",
-      "position_frames": 58014
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.568148844334825,
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-      "overlap": false,
-      "utterance_id": "6539-66420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66420.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.142215200374576,
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-      "duration": 4.718525108554272,
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-      "overlap": false,
-      "utterance_id": "8791-291101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
-      "real_speaker_id": "8791",
-      "position_frames": 157611
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "4411"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6539"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023407.json b/conversations/conv_023407.json
deleted file mode 100644
index eba7f0beef6cef3a060936467fc766cef18259d7..0000000000000000000000000000000000000000
--- a/conversations/conv_023407.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "89-218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-218.flac |",
-      "real_speaker_id": "89",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.896029901947081,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-219.flac |",
-      "real_speaker_id": "89",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-76169.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.027446909677174,
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-      "duration_frames": 63560,
-      "overlap": false,
-      "utterance_id": "89-218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-218.flac |",
-      "real_speaker_id": "89",
-      "position_frames": 87251
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023410.json b/conversations/conv_023410.json
deleted file mode 100644
index 6e06cf4b989137927011061f5a5082e63feaa80d..0000000000000000000000000000000000000000
--- a/conversations/conv_023410.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "253-126864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-126864.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6406/laugh/0020.wav",
-      "duration": 0.6891005324904314,
-      "start_time": 20.980018227571573,
-      "speaker_id": "6406"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023411.json b/conversations/conv_023411.json
deleted file mode 100644
index 517f228a9d7c435b70fcabe061e29bd34e010a14..0000000000000000000000000000000000000000
--- a/conversations/conv_023411.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.376029049204077,
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-      "overlap": false,
-      "utterance_id": "5894-64100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64100.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.583444618015699,
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-      "utterance_id": "3137-163489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163489.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 0
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-      "start_time": 10.7391418546809,
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-      "duration": 5.53889987696672,
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-      "utterance_id": "3137-163489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163489.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 56581
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7699-105389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105389.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.407725844153113,
-      "end_time": 27.874740653117797,
-      "duration": 5.467014808964686,
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-      "duration_frames": 87472,
-      "overlap": true,
-      "utterance_id": "3137-163504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163504.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.9106453119864,
-      "end_time": 32.0,
-      "duration": 3.0893546880136,
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-      "duration_frames": 49429,
-      "overlap": false,
-      "utterance_id": "5894-64098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64098.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3137/laugh/0014.wav",
-      "duration": 1.0,
-      "start_time": 9.701094810951183,
-      "speaker_id": "3137"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5894/cough/0085.wav",
-      "duration": 0.6388309293556111,
-      "start_time": 28.27147843474863,
-      "speaker_id": "5894"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023427.json b/conversations/conv_023427.json
deleted file mode 100644
index 0546b366c7af89b1ac3cab4e01b913b94d682ffe..0000000000000000000000000000000000000000
--- a/conversations/conv_023427.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.617073790140303,
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-      "overlap": true,
-      "utterance_id": "3869-700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-700.flac |",
-      "real_speaker_id": "3869",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.351939624238943,
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-      "utterance_id": "8820-294113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294113.flac |",
-      "real_speaker_id": "8820",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 17.858448544726556,
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-      "utterance_id": "3869-699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-699.flac |",
-      "real_speaker_id": "3869",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.577698390773687,
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-      "duration": 3.0704559593805643,
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-      "overlap": false,
-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 95084
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.142296174534497,
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-      "duration": 4.3256185389867845,
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-      "overlap": false,
-      "utterance_id": "3869-699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-699.flac |",
-      "real_speaker_id": "3869",
-      "position_frames": 71237
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.927878050607426,
-      "end_time": 32.0,
-      "duration": 1.0721219493925744,
-      "start_frame": 494846,
-      "duration_frames": 17153,
-      "overlap": false,
-      "utterance_id": "8820-294114",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294114.flac |",
-      "real_speaker_id": "8820",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 16.57481874717277,
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8820/laugh/0104.wav",
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-      "start_time": 12.559211491625582,
-      "speaker_id": "8820"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3869/laugh/0070.wav",
-      "duration": 0.9017356927402571,
-      "start_time": 20.97680014233359,
-      "speaker_id": "3869"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3869/cough/0036.wav",
-      "duration": 0.72,
-      "start_time": 22.317653265802715,
-      "speaker_id": "3869"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5604/cough/0093.wav",
-      "duration": 1.1135237877924007,
-      "start_time": 25.659805751765095,
-      "speaker_id": "5604"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023431.json b/conversations/conv_023431.json
deleted file mode 100644
index 4575f599a611917093d00286f37c17a0cbdfe455..0000000000000000000000000000000000000000
--- a/conversations/conv_023431.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.47188683552201,
-      "duration": 5.47188683552201,
-      "start_frame": 0,
-      "duration_frames": 87550,
-      "overlap": false,
-      "utterance_id": "6788-96241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-96241.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.200685041319281,
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-      "overlap": false,
-      "utterance_id": "7569-102232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.17758877685869,
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-      "utterance_id": "242-122627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.403368279285624,
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-      "duration": 4.628816190627272,
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-      "overlap": false,
-      "utterance_id": "7569-102232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 60208
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "242-122625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122625.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.84630356992149,
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-      "duration_frames": 90585,
-      "overlap": false,
-      "utterance_id": "7569-102240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102240.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.67793966838125,
-      "end_time": 32.0,
-      "duration": 1.3220603316187507,
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-      "overlap": false,
-      "utterance_id": "242-122626",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122626.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7569/laugh/0022.wav",
-      "duration": 1.4,
-      "start_time": 6.689954867465903,
-      "speaker_id": "7569"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7569/cough/0026.wav",
-      "duration": 0.72,
-      "start_time": 5.469510021505835,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/242/laugh/0044.wav",
-      "duration": 1.04,
-      "start_time": 10.197708771760814,
-      "speaker_id": "242"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023446.json b/conversations/conv_023446.json
deleted file mode 100644
index 6b798e1b396aa50a5a3ba0438ecf2e7e74d004fb..0000000000000000000000000000000000000000
--- a/conversations/conv_023446.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.36222243496699,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "127-129390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7276-92427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 16.787555554614865,
-      "speaker_id": "7276"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/127/laugh/0198.wav",
-      "duration": 1.32,
-      "start_time": 16.031263062819328,
-      "speaker_id": "127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023447.json b/conversations/conv_023447.json
deleted file mode 100644
index 41465891521c791695dd0194ff0247c0e500b5c9..0000000000000000000000000000000000000000
--- a/conversations/conv_023447.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.641460331094027,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.971922025526243,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
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-      "segment_id": "seg0002",
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-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 89733
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.567702169485628,
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-      "utterance_id": "820-123135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123135.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.90484649658192,
-      "end_time": 24.497487543606525,
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-      "utterance_id": "8138-287657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-287657.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.011001437320697,
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-      "utterance_id": "820-123133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 80451
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "820"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023450.json b/conversations/conv_023450.json
deleted file mode 100644
index 5e6bb87e578c8fd7ab57bc28b7d4a7e568a7838e..0000000000000000000000000000000000000000
--- a/conversations/conv_023450.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "8605-291172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-291172.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "6104-58845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58845.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8605-291172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-291172.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 81017
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.046490335859595,
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-      "utterance_id": "2582-155972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155972.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.00819985684152,
-      "end_time": 32.0,
-      "duration": 2.9918001431584784,
-      "start_frame": 464131,
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-      "overlap": false,
-      "utterance_id": "6104-58843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58843.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "start_time": 18.266159253441682,
-      "speaker_id": "8605"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6104"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023466.json b/conversations/conv_023466.json
deleted file mode 100644
index b7d6c6bcb9df439cd3d4c3dd596114222fa532d5..0000000000000000000000000000000000000000
--- a/conversations/conv_023466.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.799854759241434,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "duration": 3.0108460157270747,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7881-110131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-110131.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.989161645961849,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-109662.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1970-28415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-28415.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 19.573355670981414,
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-      "real_speaker_id": "7881",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
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-  "background_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7881/laugh/0001.wav",
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-    {
-      "event_class": "cough",
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-      "start_time": 30.50679262843609,
-      "speaker_id": "81"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023470.json b/conversations/conv_023470.json
deleted file mode 100644
index bdb605a85b0a6e0f7fbe08d382ea0aad5044b85c..0000000000000000000000000000000000000000
--- a/conversations/conv_023470.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-133440.flac |",
-      "real_speaker_id": "1914",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 51410
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.623463137301258,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 95571
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.619831042480676,
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-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 155493
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.58,
-      "start_time": 28.59327243629418,
-      "speaker_id": "210"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/laugh/0056.wav",
-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "4955"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023482.json b/conversations/conv_023482.json
deleted file mode 100644
index 2d41a89b58407bf825ec753b69a4c70c5a5d2b91..0000000000000000000000000000000000000000
--- a/conversations/conv_023482.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.58296815777927,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5242-35921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.736351341466685,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273138.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-      "utterance_id": "5242-35926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35926.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.06859680696727,
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-      "utterance_id": "8012-273137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273137.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.009604809482827,
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-      "utterance_id": "5242-35921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 72068
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.65028685370293,
-      "end_time": 31.58296815777927,
-      "duration": 2.9326813040763398,
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-      "duration_frames": 46922,
-      "overlap": true,
-      "utterance_id": "6102-56178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56178.flac |",
-      "real_speaker_id": "6102",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5242/laugh/0024.wav",
-      "duration": 0.7937533318356957,
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-      "speaker_id": "5242"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023485.json b/conversations/conv_023485.json
deleted file mode 100644
index 910c50cf871bcfdb863e29b935a3b7abd9c5e5c3..0000000000000000000000000000000000000000
--- a/conversations/conv_023485.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "3001-160952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160952.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 69025
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "2208-10076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.324865023070416,
-      "end_time": 24.700759062694175,
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-      "duration_frames": 70014,
-      "overlap": true,
-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.49775216921791,
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-      "utterance_id": "2208-10076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 95543
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
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-  "paralinguistic_events": [
-    {
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-      "duration": 1.52,
-      "start_time": 5.440063722175088,
-      "speaker_id": "3001"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3001/laugh/0059.wav",
-      "duration": 1.6,
-      "start_time": 18.57244434009157,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2208/cough/0043.wav",
-      "duration": 0.5450797540696528,
-      "start_time": 25.754359808861217,
-      "speaker_id": "2208"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023489.json b/conversations/conv_023489.json
deleted file mode 100644
index 9422fb2cdc1d7dc192b7800f3aa4bdb9bb86aa5d..0000000000000000000000000000000000000000
--- a/conversations/conv_023489.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.939360333352974,
-      "duration": 4.939360333352974,
-      "start_frame": 0,
-      "duration_frames": 79029,
-      "overlap": false,
-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.65999889275669,
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-      "duration_frames": 84478,
-      "overlap": true,
-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5876-8675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-8675.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.967807631586474,
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-      "utterance_id": "7561-258992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.519907926442713,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-8675.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 93495
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
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-      "duration_frames": 11654,
-      "overlap": false,
-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 84478
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/laugh/0029.wav",
-      "duration": 0.641913610861316,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5876/laugh/0062.wav",
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-      "start_time": 30.51147293007266,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/laugh/0030.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "7561"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023493.json b/conversations/conv_023493.json
deleted file mode 100644
index d6f4c123e27c71a6762d2a7d093bf045794fc407..0000000000000000000000000000000000000000
--- a/conversations/conv_023493.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.392049362169377,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.509326122812999,
-      "duration": 6.509326122812999,
-      "start_frame": 0,
-      "duration_frames": 104149,
-      "overlap": false,
-      "utterance_id": "4267-287369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-287369.flac |",
-      "real_speaker_id": "4267",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1224-121064.flac |",
-      "real_speaker_id": "1224",
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "8392-285237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.185472635617888,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
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-      "segment_id": "seg0004",
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-      "start_time": 24.35852067104986,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
-      "position_frames": 163327
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.41002966664523,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1224-121064.flac |",
-      "real_speaker_id": "1224",
-      "position_frames": 79287
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 4.395349891784758,
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_5.wav",
-      "duration": 1.4605471310678273,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4267/cough/0060.wav",
-      "duration": 1.1143728805411173,
-      "start_time": 0,
-      "speaker_id": "4267"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1224/laugh/0047.wav",
-      "duration": 0.7647926737850211,
-      "start_time": 9.671262060198071,
-      "speaker_id": "1224"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8392/laugh/0023.wav",
-      "duration": 0.8126012032630219,
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-      "speaker_id": "8392"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023494.json b/conversations/conv_023494.json
deleted file mode 100644
index 933f607a9abd9ef2f08ce2d12e8494547ae650cf..0000000000000000000000000000000000000000
--- a/conversations/conv_023494.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.867400566722854,
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-      "utterance_id": "6788-111574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-111574.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.62783943509541,
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-      "overlap": false,
-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 49602
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.322895977489981,
-      "end_time": 18.446169666048863,
-      "duration": 3.123273688558882,
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-      "duration_frames": 49972,
-      "overlap": false,
-      "utterance_id": "8421-283462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.578273573657732,
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-      "duration_frames": 66645,
-      "overlap": false,
-      "utterance_id": "6788-92420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-92420.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 128347
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.609306968560556,
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-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 202371
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6788/laugh/0017.wav",
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-      "speaker_id": "6788"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023502.json b/conversations/conv_023502.json
deleted file mode 100644
index cacf9af75a1058037adf9beb11432cf179e98c42..0000000000000000000000000000000000000000
--- a/conversations/conv_023502.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "161-121898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121898.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8445-281203.flac |",
-      "real_speaker_id": "8445",
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-      "utterance_id": "3744-177438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-177438.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.109090111848612,
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-      "utterance_id": "8445-281202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8445-281202.flac |",
-      "real_speaker_id": "8445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.792862811803012,
-      "end_time": 29.127506612530908,
-      "duration": 5.334643800727895,
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-      "duration_frames": 85354,
-      "overlap": true,
-      "utterance_id": "3744-177438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-177438.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 59872
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.094841442788983,
-      "end_time": 32.0,
-      "duration": 1.905158557211017,
-      "start_frame": 481517,
-      "duration_frames": 30482,
-      "overlap": false,
-      "utterance_id": "161-121898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121898.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 83932
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3744/cough/0015.wav",
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-      "start_time": 17.055897449951,
-      "speaker_id": "3744"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023503.json b/conversations/conv_023503.json
deleted file mode 100644
index f4f1341963097b30c431ff42e61ee19ec417b1b3..0000000000000000000000000000000000000000
--- a/conversations/conv_023503.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.277126818768251,
-      "duration": 3.277126818768251,
-      "start_frame": 0,
-      "duration_frames": 52434,
-      "overlap": false,
-      "utterance_id": "3744-178594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178594.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.093190347397888,
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-      "duration": 3.241859500247022,
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-      "duration_frames": 51869,
-      "overlap": false,
-      "utterance_id": "3551-7887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3551-7887.flac |",
-      "real_speaker_id": "3551",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.2548565754382786,
-      "end_time": 11.928055566580321,
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-      "duration_frames": 74771,
-      "overlap": true,
-      "utterance_id": "4915-113765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-113765.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.723551419510486,
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-      "overlap": false,
-      "utterance_id": "3551-7887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3551-7887.flac |",
-      "real_speaker_id": "3551",
-      "position_frames": 51869
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.63500248378503,
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-      "utterance_id": "4915-245690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 23.673796490465055,
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-      "start_frame": 378780,
-      "duration_frames": 76892,
-      "overlap": false,
-      "utterance_id": "3551-7894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3551-7894.flac |",
-      "real_speaker_id": "3551",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.616942134861333,
-      "end_time": 32.0,
-      "duration": 3.3830578651386674,
-      "start_frame": 457871,
-      "duration_frames": 54128,
-      "overlap": false,
-      "utterance_id": "3551-7884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3551-7884.flac |",
-      "real_speaker_id": "3551",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
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-    {
-      "event_class": "Dog",
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-      "duration": 1.116031746031746,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3551/laugh/0011.wav",
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-      "start_time": 12.952826540071129,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3551/laugh/0127.wav",
-      "duration": 1.6,
-      "start_time": 30.4,
-      "speaker_id": "3551"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023515.json b/conversations/conv_023515.json
deleted file mode 100644
index cce90ad94a7f82faa9fad788c068a4794bba18f4..0000000000000000000000000000000000000000
--- a/conversations/conv_023515.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.3350268937800673,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-154284.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.104981191579633,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6674-71400.flac |",
-      "real_speaker_id": "6674",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.43328171459203,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6674-71400.flac |",
-      "real_speaker_id": "6674",
-      "position_frames": 85920
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.960492378645448,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-154284.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 79837
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2785/laugh/0073.wav",
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-      "speaker_id": "2785"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023519.json b/conversations/conv_023519.json
deleted file mode 100644
index 3b924839039b1ec41a3664d535d04178a14e5ab3..0000000000000000000000000000000000000000
--- a/conversations/conv_023519.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.417750671753529,
-      "duration": 6.417750671753529,
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-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.612650883719173,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
-      "real_speaker_id": "345",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1129.flac |",
-      "real_speaker_id": "345",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 81152
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 168880
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023523.json b/conversations/conv_023523.json
deleted file mode 100644
index 1cdc4ef1ddb8bf1bc8710df88bca3264c8a328c0..0000000000000000000000000000000000000000
--- a/conversations/conv_023523.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
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-      "real_speaker_id": "4594",
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-      "segment_id": "seg0005",
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-      "position_frames": 168007
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-}
\ No newline at end of file
diff --git a/conversations/conv_023528.json b/conversations/conv_023528.json
deleted file mode 100644
index 3e4dc731bf8b238e579c5b38b5882224042ba12e..0000000000000000000000000000000000000000
--- a/conversations/conv_023528.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.93219393336338,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7134-67233",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/243/cough/0109.wav",
-      "duration": 0.7227160618495143,
-      "start_time": 14.198907849807728,
-      "speaker_id": "243"
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-    {
-      "event_class": "cough",
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-      "duration": 0.3291424197608943,
-      "start_time": 30.60512007788537,
-      "speaker_id": "6567"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023535.json b/conversations/conv_023535.json
deleted file mode 100644
index 9d68040d69f4f484ad1c306b92360b9e91c2d1de..0000000000000000000000000000000000000000
--- a/conversations/conv_023535.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.2814706961143707,
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-      "overlap": false,
-      "utterance_id": "2198-46877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-46877.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.304607362376095,
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-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 9.019743708385167,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-46877.flac |",
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-      "position_frames": 52503
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 73344
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.439467136739314,
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-      "overlap": false,
-      "utterance_id": "2198-151049",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-151049.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.23079020903305,
-      "end_time": 29.796625015829772,
-      "duration": 5.565834806796722,
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-      "duration_frames": 89053,
-      "overlap": false,
-      "utterance_id": "8705-290361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290361.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.17034485017492,
-      "end_time": 32.0,
-      "duration": 1.8296551498250793,
-      "start_frame": 482725,
-      "duration_frames": 29274,
-      "overlap": false,
-      "utterance_id": "8705-290363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
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-      "speaker_id": "5269"
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-      "event_class": "laugh",
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-      "duration": 1.4681833916190472,
-      "start_time": 22.545532984151762,
-      "speaker_id": "8705"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023539.json b/conversations/conv_023539.json
deleted file mode 100644
index 11952921a869ce36ad7f53aa484d41dc9e8c8269..0000000000000000000000000000000000000000
--- a/conversations/conv_023539.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.693177999847764,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-36633.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61743.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "6233-61741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61741.flac |",
-      "real_speaker_id": "6233",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.121121976510544,
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-      "overlap": true,
-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6233-61742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61742.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.965583369027197,
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-      "duration": 1.0344166309728031,
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-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 68336
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  ],
-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2276/laugh/0101.wav",
-      "duration": 0.9150839589943148,
-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6233/laugh/0034.wav",
-      "duration": 0.8,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6233/laugh/0092.wav",
-      "duration": 0.8,
-      "start_time": 30.017153457515374,
-      "speaker_id": "6233"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023542.json b/conversations/conv_023542.json
deleted file mode 100644
index ac2cd277a3cb1ab46dd96950373467ae60a1bfa8..0000000000000000000000000000000000000000
--- a/conversations/conv_023542.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "5206-19376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5206-19376.flac |",
-      "real_speaker_id": "5206",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5206-19376.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "1801",
-      "position_frames": 63892
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 293597
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023554.json b/conversations/conv_023554.json
deleted file mode 100644
index 188a152cb870ac18cd8febd9187368236a70f237..0000000000000000000000000000000000000000
--- a/conversations/conv_023554.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
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-      "real_speaker_id": "3559",
-      "position_frames": 85058
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.766774758791954,
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-      "duration": 5.879288483130188,
-      "start_frame": 380268,
-      "duration_frames": 94068,
-      "overlap": true,
-      "utterance_id": "23-124439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
-      "position_frames": 140233
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.112164403294944,
-      "end_time": 32.0,
-      "duration": 0.887835596705056,
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-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 157882
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
-      "duration": 0.672108843537415,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3559/laugh/0091.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3559/cough/0059.wav",
-      "duration": 0.9946613036968219,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/23/cough/0030.wav",
-      "duration": 1.0129213039963665,
-      "start_time": 14.90632130902783,
-      "speaker_id": "23"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023555.json b/conversations/conv_023555.json
deleted file mode 100644
index b7d1d04ad7fbf7415beb112964abf5df27fb41db..0000000000000000000000000000000000000000
--- a/conversations/conv_023555.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.77550665058454,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.18825719637072,
-      "duration": 5.18825719637072,
-      "start_frame": 0,
-      "duration_frames": 83012,
-      "overlap": false,
-      "utterance_id": "5975-54006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
-      "real_speaker_id": "5975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.138948772740273,
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-      "duration": 3.095853706201704,
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-      "duration_frames": 49533,
-      "overlap": true,
-      "utterance_id": "2404-141242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2404-141242.flac |",
-      "real_speaker_id": "2404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.7585568567753,
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-      "duration": 5.8252903027101794,
-      "start_frame": 156136,
-      "duration_frames": 93204,
-      "overlap": false,
-      "utterance_id": "464-126832",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126832.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.107909073997547,
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-      "duration": 3.6938651578085846,
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-      "duration_frames": 59101,
-      "overlap": false,
-      "utterance_id": "2404-141240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2404-141240.flac |",
-      "real_speaker_id": "2404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.969890463830332,
-      "end_time": 26.5904735410597,
-      "duration": 6.62058307722937,
-      "start_frame": 319518,
-      "duration_frames": 105929,
-      "overlap": true,
-      "utterance_id": "464-126832",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126832.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 93204
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.685119723974104,
-      "end_time": 31.77550665058454,
-      "duration": 4.090386926610433,
-      "start_frame": 442961,
-      "duration_frames": 65446,
-      "overlap": false,
-      "utterance_id": "2404-141240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2404-141240.flac |",
-      "real_speaker_id": "2404",
-      "position_frames": 59101
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
-      "duration": 0.20596371882086167,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5975/laugh/0005.wav",
-      "duration": 0.6462140876399503,
-      "start_time": 0,
-      "speaker_id": "5975"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2404/cough/0069.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2404/laugh/0103.wav",
-      "duration": 1.48,
-      "start_time": 20.091486557351544,
-      "speaker_id": "2404"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023558.json b/conversations/conv_023558.json
deleted file mode 100644
index fb2c974cf94a401aa3e8e4f3ae2abd11573315ce..0000000000000000000000000000000000000000
--- a/conversations/conv_023558.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.989305068884742,
-      "duration": 6.989305068884742,
-      "start_frame": 0,
-      "duration_frames": 111828,
-      "overlap": false,
-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.409876765071198,
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-      "utterance_id": "5400-34478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-34478.flac |",
-      "real_speaker_id": "5400",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1124-134775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-134775.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.128661990177857,
-      "end_time": 22.63758896719602,
-      "duration": 4.508926977018162,
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-      "overlap": false,
-      "utterance_id": "7247-77778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-77778.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.375410987153273,
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-      "start_frame": 374006,
-      "duration_frames": 70404,
-      "overlap": false,
-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 111828
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.97962284097184,
-      "end_time": 32.0,
-      "duration": 4.020377159028161,
-      "start_frame": 447673,
-      "duration_frames": 64326,
-      "overlap": false,
-      "utterance_id": "7247-101864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-101864.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-      "start_time": 6.292434196551068
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_18.wav",
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-      "start_time": 28.68210593178535
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-    {
-      "event_class": "Cat",
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-      "duration": 1.1817687074829932,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1124/laugh/0060.wav",
-      "duration": 1.5033383714852544,
-      "start_time": 0,
-      "speaker_id": "1124"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1124/cough/0068.wav",
-      "duration": 0.3252144989786966,
-      "start_time": 7.11193876698067,
-      "speaker_id": "1124"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1124/laugh/0103.wav",
-      "duration": 0.9688475738943865,
-      "start_time": 12.96749578302808,
-      "speaker_id": "1124"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023562.json b/conversations/conv_023562.json
deleted file mode 100644
index 47c58ab7283618a8e7d7b6b1da4e1b284f4b9427..0000000000000000000000000000000000000000
--- a/conversations/conv_023562.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.01844492592322,
-      "duration": 4.01844492592322,
-      "start_frame": 0,
-      "duration_frames": 64295,
-      "overlap": false,
-      "utterance_id": "6333-39678",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39678.flac |",
-      "real_speaker_id": "6333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.582958532357863,
-      "end_time": 9.228958112077994,
-      "duration": 4.645999579720131,
-      "start_frame": 73327,
-      "duration_frames": 74335,
-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.539204131557137,
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-      "duration": 5.089579496078208,
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-      "duration_frames": 81433,
-      "overlap": true,
-      "utterance_id": "6333-39676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39676.flac |",
-      "real_speaker_id": "6333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.06781384055316,
-      "end_time": 21.402785034013117,
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-      "duration_frames": 85359,
-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 74335
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.519035224078923,
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-      "duration_frames": 92229,
-      "overlap": false,
-      "utterance_id": "6333-39671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39671.flac |",
-      "real_speaker_id": "6333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.800238013998335,
-      "end_time": 32.0,
-      "duration": 4.199761986001665,
-      "start_frame": 444803,
-      "duration_frames": 67196,
-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 159694
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
-      "duration": 2.3394304341756604,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6333/laugh/0120.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "6333"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1645/laugh/0001.wav",
-      "duration": 1.1,
-      "start_time": 14.67446141633306,
-      "speaker_id": "1645"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6333/laugh/0036.wav",
-      "duration": 1.5084778604991063,
-      "start_time": 27.483923129311894,
-      "speaker_id": "6333"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023569.json b/conversations/conv_023569.json
deleted file mode 100644
index 55c46ccaf3792b295ab8b30d1d6163425a669820..0000000000000000000000000000000000000000
--- a/conversations/conv_023569.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.341466841249733,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.370814615428503,
-      "duration": 4.370814615428503,
-      "start_frame": 0,
-      "duration_frames": 69933,
-      "overlap": false,
-      "utterance_id": "8770-295462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295462.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.761355823141429,
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-      "duration": 5.364120165633981,
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-      "duration_frames": 85825,
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-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 85825
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "272-130225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130225.flac |",
-      "real_speaker_id": "272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.301468350095472,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 156871
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130225.flac |",
-      "real_speaker_id": "272",
-      "position_frames": 94300
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_6.wav",
-      "duration": 1.2077777777777778,
-      "start_time": 29.76348119624286
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
-      "duration": 0.3546485260770975,
-      "start_time": 30.080592700233282
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8770/laugh/0085.wav",
-      "duration": 0.8243535742549809,
-      "start_time": 4.619008071211392,
-      "speaker_id": "8770"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023574.json b/conversations/conv_023574.json
deleted file mode 100644
index 1629a02c701b23c830cc421d64d2874ee6410731..0000000000000000000000000000000000000000
--- a/conversations/conv_023574.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.96431567992107,
-      "duration": 5.96431567992107,
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-      "overlap": false,
-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.386458061789694,
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-      "start_frame": 102183,
-      "duration_frames": 57772,
-      "overlap": false,
-      "utterance_id": "2589-22574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22574.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.625212140859752,
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-      "duration_frames": 79860,
-      "overlap": true,
-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 95429
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.308798508426726,
-      "end_time": 22.823217571924793,
-      "duration": 6.514419063498066,
-      "start_frame": 260940,
-      "duration_frames": 104230,
-      "overlap": true,
-      "utterance_id": "2589-22574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22574.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 57772
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.063408379892678,
-      "end_time": 28.109810273701086,
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-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 175289
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.651818653786258,
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-      "duration_frames": 53570,
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-      "utterance_id": "2589-177234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-177234.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_023578.json b/conversations/conv_023578.json
deleted file mode 100644
index 5d6437fc4f7ab98dfebacb819cee7ef5c28ff1e6..0000000000000000000000000000000000000000
--- a/conversations/conv_023578.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.502947084341447,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7147-80028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.835117869191041,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 76604
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6054-41610.flac |",
-      "real_speaker_id": "6054",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2182-181173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181173.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 75939,
-      "overlap": false,
-      "utterance_id": "7147-80028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 132824
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/cough/0053.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023581.json b/conversations/conv_023581.json
deleted file mode 100644
index 23b4aa708c610e96265799d09e29ed55d80fda4a..0000000000000000000000000000000000000000
--- a/conversations/conv_023581.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.256115945867595,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8113-301693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301693.flac |",
-      "real_speaker_id": "8113",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.67639717828457,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3045-163406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-163406.flac |",
-      "real_speaker_id": "3045",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301694.flac |",
-      "real_speaker_id": "8113",
-      "position_frames": 52334
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 76104
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "start_time": 11.49216990018283,
-      "speaker_id": "3045"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023586.json b/conversations/conv_023586.json
deleted file mode 100644
index 9409f25cb0ac832d9d5915055ac437d25aa4b134..0000000000000000000000000000000000000000
--- a/conversations/conv_023586.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.435991774928436,
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-      "start_frame": 0,
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-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.69768926826716,
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-      "utterance_id": "451-126829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126829.flac |",
-      "real_speaker_id": "451",
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-    {
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-      "utterance_id": "7208-7768",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126829.flac |",
-      "real_speaker_id": "451",
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-      "segment_id": "seg0004",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_023590.json b/conversations/conv_023590.json
deleted file mode 100644
index 5c36340d98c86261f87c0408ef6c23a6a6960a13..0000000000000000000000000000000000000000
--- a/conversations/conv_023590.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 29.855378988665116,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121740.flac |",
-      "real_speaker_id": "517",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.208607042573114,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-126864.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121739.flac |",
-      "real_speaker_id": "517",
-      "position_frames": 0
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-      "utterance_id": "8242-279764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279764.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "8242-279771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279771.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 26.205212315096237,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-126864.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 58291
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_023597.json b/conversations/conv_023597.json
deleted file mode 100644
index 20669e59d9f4cc5b4ab21a6e749dc51240dfbe63..0000000000000000000000000000000000000000
--- a/conversations/conv_023597.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4910.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "5012",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4909.flac |",
-      "real_speaker_id": "3192",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.78524534026727,
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-      "overlap": true,
-      "utterance_id": "3192-4910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4910.flac |",
-      "real_speaker_id": "3192",
-      "position_frames": 57042
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023601.json b/conversations/conv_023601.json
deleted file mode 100644
index 87c65a2acabf4e9bf342b3f20c0ddc8541292d87..0000000000000000000000000000000000000000
--- a/conversations/conv_023601.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7326-245693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-245693.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "duration_frames": 67253,
-      "overlap": false,
-      "utterance_id": "3235-11599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-11599.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-245693.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 95722
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305217.flac |",
-      "real_speaker_id": "8846",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-11599.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 67253
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-245693.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 151184
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.588069345042182,
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-      "duration": 1.4119306549578177,
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-      "utterance_id": "3235-28452",
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-      "real_speaker_id": "3235",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
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-      "start_time": 15.111717872051319,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8846/cough/0093.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7326/laugh/0044.wav",
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-      "speaker_id": "7326"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023606.json b/conversations/conv_023606.json
deleted file mode 100644
index 97f19284a00c4677cda606d1bf3426fefa5dfc08..0000000000000000000000000000000000000000
--- a/conversations/conv_023606.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8444-281329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
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\ No newline at end of file
diff --git a/conversations/conv_023610.json b/conversations/conv_023610.json
deleted file mode 100644
index 759008e63a75ca2ff34a9a80a78bcfacb976ce3e..0000000000000000000000000000000000000000
--- a/conversations/conv_023610.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109872.flac |",
-      "real_speaker_id": "7839",
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\ No newline at end of file
diff --git a/conversations/conv_023617.json b/conversations/conv_023617.json
deleted file mode 100644
index 2f62c093cee71a686cb04fa03056a1f32075d37b..0000000000000000000000000000000000000000
--- a/conversations/conv_023617.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "real_speaker_id": "7559",
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-      "real_speaker_id": "3493",
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-      "event_class": "laugh",
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-      "speaker_id": "3493"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023626.json b/conversations/conv_023626.json
deleted file mode 100644
index cdb5c37621f2dbe5a5d6c15c1c0c929fffb92fd1..0000000000000000000000000000000000000000
--- a/conversations/conv_023626.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31097.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7933",
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-      "position_frames": 0
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-    {
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-      "duration_frames": 52263,
-      "overlap": false,
-      "utterance_id": "7933-113273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-113273.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "7933"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023630.json b/conversations/conv_023630.json
deleted file mode 100644
index 3262343ce722075b0c7c0fee28b0451543200c3f..0000000000000000000000000000000000000000
--- a/conversations/conv_023630.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.333446001580479,
-      "duration": 5.333446001580479,
-      "start_frame": 0,
-      "duration_frames": 85335,
-      "overlap": false,
-      "utterance_id": "8396-120277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120277.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.479582165219515,
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-      "duration": 4.112126131082495,
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-      "overlap": false,
-      "utterance_id": "671-131040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.936514946376516,
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-      "duration": 6.465028195045271,
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-      "overlap": false,
-      "utterance_id": "8396-240992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-240992.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.339507920498612,
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-      "overlap": false,
-      "utterance_id": "671-131030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.830665880061318,
-      "end_time": 26.927180175727212,
-      "duration": 5.096514295665894,
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-      "utterance_id": "8396-120281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120281.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.981233864350976,
-      "end_time": 32.0,
-      "duration": 4.018766135649024,
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-      "utterance_id": "671-131040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 65794
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 15.426402254796228
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_0.wav",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8396/cough/0035.wav",
-      "duration": 1.08,
-      "start_time": 20.642969793891297,
-      "speaker_id": "8396"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023640.json b/conversations/conv_023640.json
deleted file mode 100644
index cab564df8f7b6464ef860adaa068e275d351ba2f..0000000000000000000000000000000000000000
--- a/conversations/conv_023640.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.4942748329042,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.4157823360142885,
-      "duration": 6.4157823360142885,
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-      "overlap": false,
-      "utterance_id": "1110-136055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-136055.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.759872180339877,
-      "end_time": 13.503275905362766,
-      "duration": 6.74340372502289,
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-      "utterance_id": "8008-271812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271812.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.677647297434806,
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-      "overlap": false,
-      "utterance_id": "8470-279797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.641983887355423,
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-      "duration": 6.39806057253509,
-      "start_frame": 314271,
-      "duration_frames": 102368,
-      "overlap": false,
-      "utterance_id": "8008-271812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271812.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 107894
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.142220260229884,
-      "end_time": 31.4942748329042,
-      "duration": 4.352054572674317,
-      "start_frame": 434275,
-      "duration_frames": 69632,
-      "overlap": false,
-      "utterance_id": "1110-134828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134828.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
-      "duration": 3.990772410674999,
-      "start_time": 10.969013046332249
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
-      "duration": 1.0652834467120182,
-      "start_time": 21.47077374408201
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1110/laugh/0077.wav",
-      "duration": 1.16,
-      "start_time": 3.8929501667406177,
-      "speaker_id": "1110"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8008/laugh/0036.wav",
-      "duration": 1.0325446538953982,
-      "start_time": 13.798767637524698,
-      "speaker_id": "8008"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8470/laugh/0076.wav",
-      "duration": 1.04,
-      "start_time": 12.582962500563664,
-      "speaker_id": "8470"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1110/cough/0054.wav",
-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "1110"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023647.json b/conversations/conv_023647.json
deleted file mode 100644
index 35fdc41d9010aabaa0e7d10fd37e8c9c7afc9aef..0000000000000000000000000000000000000000
--- a/conversations/conv_023647.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.336408986427898,
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-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 67930
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 110638
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.339259158762612,
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-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
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-    {
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-      "real_speaker_id": "1693",
-      "position_frames": 165809
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "real_speaker_id": "1001",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.54,
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023651.json b/conversations/conv_023651.json
deleted file mode 100644
index 37d174ebaa88cb12cfa70a3c99abafa2cb00c2d2..0000000000000000000000000000000000000000
--- a/conversations/conv_023651.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.329869773499766,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5570-73847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73847.flac |",
-      "real_speaker_id": "5570",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5570-73846",
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-      "speaker_id": "5570"
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-      "speaker_id": "1485"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1485/cough/0083.wav",
-      "duration": 0.96,
-      "start_time": 18.396735060706174,
-      "speaker_id": "1485"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/451/cough/0100.wav",
-      "duration": 1.08,
-      "start_time": 20.440110564555358,
-      "speaker_id": "451"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023656.json b/conversations/conv_023656.json
deleted file mode 100644
index dfa381190d7caecde7c1dfe4332309ea7c8a6c51..0000000000000000000000000000000000000000
--- a/conversations/conv_023656.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.4027602992504,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.462461226275705,
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.370749160846833,
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-      "utterance_id": "968-122544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.82935863971849,
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-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 66143
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.144565266725834,
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-      "duration": 5.634310998531735,
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-      "duration_frames": 90148,
-      "overlap": false,
-      "utterance_id": "968-122545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122545.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 104448
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.040924614680485,
-      "end_time": 31.4027602992504,
-      "duration": 4.361835684569915,
-      "start_frame": 432654,
-      "duration_frames": 69789,
-      "overlap": true,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 136224
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8975/laugh/0038.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "8975"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/968/laugh/0001.wav",
-      "duration": 1.18,
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023667.json b/conversations/conv_023667.json
deleted file mode 100644
index 31d21a403543ba1dec3ec6b84e07b4a5eeaca599..0000000000000000000000000000000000000000
--- a/conversations/conv_023667.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.649628163301237,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2792-152929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.820858495191414,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "5198-204974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204974.flac |",
-      "real_speaker_id": "5198",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "4894-7788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
-      "position_frames": 99928
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.977352441102536,
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-      "duration": 6.550468331293914,
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-      "utterance_id": "2792-144136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.60036266863086,
-      "end_time": 31.649628163301237,
-      "duration": 2.049265494670376,
-      "start_frame": 473605,
-      "duration_frames": 32788,
-      "overlap": true,
-      "utterance_id": "5198-204975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204975.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 21.859158447502328,
-      "speaker_id": "2792"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.171222908735,
-      "speaker_id": "5198"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023671.json b/conversations/conv_023671.json
deleted file mode 100644
index 059cabb94ea797e4fa5fa549fbf87bffaffa3e68..0000000000000000000000000000000000000000
--- a/conversations/conv_023671.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1182-134981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134981.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.853306468857797,
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-      "utterance_id": "2574-128283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128283.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.542390841180008,
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-      "overlap": false,
-      "utterance_id": "2574-128278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128278.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.489516877031459,
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-      "start_frame": 215832,
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-      "overlap": false,
-      "utterance_id": "1182-134316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134316.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2911-7601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-7601.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.786575707278722,
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-      "utterance_id": "1182-134316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134316.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 85846
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.716673244460893,
-      "end_time": 32.0,
-      "duration": 2.2833267555391075,
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-      "utterance_id": "2574-128303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128303.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_6.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1182/laugh/0120.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2911/laugh/0052.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2574/laugh/0108.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "2574"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023684.json b/conversations/conv_023684.json
deleted file mode 100644
index 64b1bcf0288382857dd17ff80f6630430ae887b7..0000000000000000000000000000000000000000
--- a/conversations/conv_023684.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 5.861107361599769,
-      "start_frame": 0,
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-      "utterance_id": "5672-88363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88363.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "5672-75791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-75791.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1200-135067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135067.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.020107951242327,
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-    {
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-      "real_speaker_id": "1200",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 31.256913689999045,
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-      "utterance_id": "5672-88367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88367.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5672/laugh/0080.wav",
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-      "duration": 1.2,
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-      "speaker_id": "1200"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023688.json b/conversations/conv_023688.json
deleted file mode 100644
index 9c2b7a4dc457a0cd8955af3800dc9ad03c6b8650..0000000000000000000000000000000000000000
--- a/conversations/conv_023688.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7909-106369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7909-106369.flac |",
-      "real_speaker_id": "7909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.4210091058409775,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149880.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 8.718296371993905,
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-      "utterance_id": "7909-106370",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7909-106370.flac |",
-      "real_speaker_id": "7909",
-      "position_frames": 0
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-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "position_frames": 0
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-      "real_speaker_id": "7909",
-      "position_frames": 77356
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7909-106369.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_023692.json b/conversations/conv_023692.json
deleted file mode 100644
index e727867e18b71d83edd627823c668d11af41599e..0000000000000000000000000000000000000000
--- a/conversations/conv_023692.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "overlap": true,
-      "utterance_id": "4967-3586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-3586.flac |",
-      "real_speaker_id": "4967",
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-      "speaker_id": 1,
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-      "real_speaker_id": "3079",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_023693.json b/conversations/conv_023693.json
deleted file mode 100644
index 189ab4cec26d8d94b2fb95e328dfbe88af62d8a7..0000000000000000000000000000000000000000
--- a/conversations/conv_023693.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-123167.flac |",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7245-104886",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_023702.json b/conversations/conv_023702.json
deleted file mode 100644
index 0c41ccab386636aed857947ca21072d204545938..0000000000000000000000000000000000000000
--- a/conversations/conv_023702.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6399-278847",
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6399-278849",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/298/cough/0108.wav",
-      "duration": 0.5812202868215057,
-      "start_time": 17.08507656547395,
-      "speaker_id": "298"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6399/laugh/0064.wav",
-      "duration": 1.32,
-      "start_time": 26.426071251028553,
-      "speaker_id": "6399"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023705.json b/conversations/conv_023705.json
deleted file mode 100644
index 12c7d8c54b65c81ccae79b2c2eb13346a2e77bb4..0000000000000000000000000000000000000000
--- a/conversations/conv_023705.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.536069833572032,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.445378600797452,
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-      "start_frame": 0,
-      "duration_frames": 87126,
-      "overlap": false,
-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.757067290872048,
-      "end_time": 10.455620100087263,
-      "duration": 4.698552809215214,
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-      "overlap": true,
-      "utterance_id": "6269-66176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66176.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.575585033245654,
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-      "overlap": true,
-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 87126
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.96693813488629,
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-      "utterance_id": "6269-66185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66185.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.376368829038043,
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-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 155732
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.999470907861348,
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-      "overlap": true,
-      "utterance_id": "6269-66184",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66184.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6269/laugh/0107.wav",
-      "duration": 1.48,
-      "start_time": 15.31122554527124,
-      "speaker_id": "6269"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6269/laugh/0069.wav",
-      "duration": 1.4,
-      "start_time": 28.22721223646919,
-      "speaker_id": "6269"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023713.json b/conversations/conv_023713.json
deleted file mode 100644
index eb833f08f2e7b8ebc1824b187c757e84aaefbf6c..0000000000000000000000000000000000000000
--- a/conversations/conv_023713.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-225.flac |",
-      "real_speaker_id": "37",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-214.flac |",
-      "real_speaker_id": "37",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.19745747786865,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-214.flac |",
-      "real_speaker_id": "37",
-      "position_frames": 48832
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.822612489322665,
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-      "duration": 6.459812637191727,
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-      "duration_frames": 103357,
-      "overlap": false,
-      "utterance_id": "8643-298549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-298549.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.206052913446484,
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-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 78057
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-    {
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-      "speaker_id": "8643"
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\ No newline at end of file
diff --git a/conversations/conv_023714.json b/conversations/conv_023714.json
deleted file mode 100644
index 47c5ac47d7a81fa447482ea00ea13aa1ff80ac1d..0000000000000000000000000000000000000000
--- a/conversations/conv_023714.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "8630-305212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305212.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.43730212385877,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 66410
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.012516338185286,
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-      "duration": 3.9874836618147143,
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-      "utterance_id": "8630-305213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305213.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023718.json b/conversations/conv_023718.json
deleted file mode 100644
index fcb1868def1d16437b72558e36023b1df2154a98..0000000000000000000000000000000000000000
--- a/conversations/conv_023718.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.483325645767778,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3595-176633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3595-176633.flac |",
-      "real_speaker_id": "3595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.7789452342293153,
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-      "real_speaker_id": "3595",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.258411695967308,
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-      "utterance_id": "6773-76039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
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-    {
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-    {
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-  "foreground_events": [
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-      "duration": 1.32,
-      "start_time": 27.094113644367734,
-      "speaker_id": "6773"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023722.json b/conversations/conv_023722.json
deleted file mode 100644
index 8d35251c23f79f258e82001b09eada3e02c52043..0000000000000000000000000000000000000000
--- a/conversations/conv_023722.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.021339281225221,
-      "duration": 4.021339281225221,
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-      "overlap": false,
-      "utterance_id": "6539-66421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66421.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.801076040420461,
-      "end_time": 9.014558699541901,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.764980742751922,
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-      "overlap": true,
-      "utterance_id": "3374-298025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3374-298025.flac |",
-      "real_speaker_id": "3374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.019164179369803,
-      "end_time": 19.108842765784757,
-      "duration": 3.0896785864149554,
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-      "duration_frames": 49434,
-      "overlap": false,
-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 67415
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.548237640877996,
-      "end_time": 25.842980417335916,
-      "duration": 6.294742776457921,
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-      "duration_frames": 100715,
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-      "utterance_id": "6539-66421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66421.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 64341
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.323806279620605,
-      "end_time": 30.419659329932163,
-      "duration": 4.095853050311557,
-      "start_frame": 421180,
-      "duration_frames": 65533,
-      "overlap": false,
-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 116849
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.245636645056287,
-      "end_time": 32.0,
-      "duration": 0.7543633549437132,
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-      "utterance_id": "6539-66420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66420.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_17.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "6539"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/525/cough/0053.wav",
-      "duration": 0.9463748676362245,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/525/laugh/0043.wav",
-      "duration": 1.52,
-      "start_time": 17.3764303896806,
-      "speaker_id": "525"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023734.json b/conversations/conv_023734.json
deleted file mode 100644
index 80eba67d52fb1b31d5eab4f7164d4deb1c9fb0fe..0000000000000000000000000000000000000000
--- a/conversations/conv_023734.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.75364455143437,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8444-281329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.59633979872816,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163499.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.5256040207181,
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-      "duration": 3.8752517408332814,
-      "start_frame": 296409,
-      "duration_frames": 62004,
-      "overlap": false,
-      "utterance_id": "3060-163542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163542.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.789767473508142,
-      "end_time": 26.643920402967538,
-      "duration": 3.8541529294593975,
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-      "duration_frames": 61666,
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-      "utterance_id": "8444-281329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 101827
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.936145694244026,
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-      "overlap": false,
-      "utterance_id": "3060-163540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.18,
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 10.251761437893451,
-      "speaker_id": "7423"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023738.json b/conversations/conv_023738.json
deleted file mode 100644
index 4ca4b3e2efc025c70c3180907f3b9dc81e886fd9..0000000000000000000000000000000000000000
--- a/conversations/conv_023738.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1653-142374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142374.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271817.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "1653-142374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142374.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271812.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8302-281317",
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-      "real_speaker_id": "8302",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1653-142352",
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-      "position_frames": 0
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-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023743.json b/conversations/conv_023743.json
deleted file mode 100644
index 0719988d96fe0da8a88d268a1bb5813cb1f96493..0000000000000000000000000000000000000000
--- a/conversations/conv_023743.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3979-10701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
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-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4487/laugh/0123.wav",
-      "duration": 0.6143199200733822,
-      "start_time": 3.713123658907197,
-      "speaker_id": "4487"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 14.213445104738339,
-      "speaker_id": "3979"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023744.json b/conversations/conv_023744.json
deleted file mode 100644
index 38088276d06fbf5078364a03874e83dc024e160d..0000000000000000000000000000000000000000
--- a/conversations/conv_023744.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.966474838435126,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8713-296159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-296159.flac |",
-      "real_speaker_id": "8713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.123843775693447,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4090-183977.flac |",
-      "real_speaker_id": "4090",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.591987363602376,
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-      "utterance_id": "8713-296159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-296159.flac |",
-      "real_speaker_id": "8713",
-      "position_frames": 69547
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.87035995318392,
-      "end_time": 24.4284929283052,
-      "duration": 5.558132975121279,
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-      "duration_frames": 88930,
-      "overlap": false,
-      "utterance_id": "4356-6506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6506.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.26408254932251,
-      "end_time": 31.966474838435126,
-      "duration": 6.702392289112615,
-      "start_frame": 404225,
-      "duration_frames": 107238,
-      "overlap": false,
-      "utterance_id": "8713-302111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-302111.flac |",
-      "real_speaker_id": "8713",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-      "duration": 0.9772787654177184,
-      "start_time": 27.409365398508506,
-      "speaker_id": "8713"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023752.json b/conversations/conv_023752.json
deleted file mode 100644
index b9fbd5d42fa4fec42b2dd29ab18538899dc18f0f..0000000000000000000000000000000000000000
--- a/conversations/conv_023752.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7447-91187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91187.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 0
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-      "position_frames": 0
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-      "utterance_id": "6324-64063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91186.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.021227070426356,
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-      "duration": 4.543618609734313,
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-      "utterance_id": "8392-285237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
-      "position_frames": 97929
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.756544784080972,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.12353679331798,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023755.json b/conversations/conv_023755.json
deleted file mode 100644
index 0b619e184cdac7a2bf5517445fd68264bd7e1eb2..0000000000000000000000000000000000000000
--- a/conversations/conv_023755.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.04657956518742,
-  "num_speakers": 2,
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-      "utterance_id": "4010-10822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10822.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-292568.flac |",
-      "real_speaker_id": "7702",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4010-10798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10798.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-292568.flac |",
-      "real_speaker_id": "7702",
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-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7702-96101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-96101.flac |",
-      "real_speaker_id": "7702",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023759.json b/conversations/conv_023759.json
deleted file mode 100644
index c65d45dde1bbe7946e0a1bb75dea96d12c8b67f8..0000000000000000000000000000000000000000
--- a/conversations/conv_023759.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1559-139353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
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-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/164574.wav",
-      "duration": 0.09782312925170068,
-      "start_time": 17.022077827106994
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8867/laugh/0025.wav",
-      "duration": 1.4,
-      "start_time": 5.580651109427977,
-      "speaker_id": "8867"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1559/cough/0040.wav",
-      "duration": 0.6487276225864174,
-      "start_time": 21.0666336199826,
-      "speaker_id": "1559"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023763.json b/conversations/conv_023763.json
deleted file mode 100644
index 0a30ce2a7d0cc66e75b480b0dabbe9efd3c5adbe..0000000000000000000000000000000000000000
--- a/conversations/conv_023763.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.07644995067041,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.590467313083817,
-      "duration": 4.590467313083817,
-      "start_frame": 0,
-      "duration_frames": 73447,
-      "overlap": false,
-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.215820795667068,
-      "end_time": 11.003136966126643,
-      "duration": 6.787316170459574,
-      "start_frame": 67453,
-      "duration_frames": 108597,
-      "overlap": true,
-      "utterance_id": "6954-76168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76168.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.30420220488929,
-      "end_time": 15.847016486360763,
-      "duration": 3.542814281471474,
-      "start_frame": 196867,
-      "duration_frames": 56685,
-      "overlap": false,
-      "utterance_id": "253-124400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-124400.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.465314886786317,
-      "end_time": 22.613935828402504,
-      "duration": 6.148620941616186,
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-      "duration_frames": 98377,
-      "overlap": false,
-      "utterance_id": "6954-76579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76579.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.830711781044993,
-      "end_time": 27.546364686162807,
-      "duration": 4.715652905117814,
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-      "overlap": false,
-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 73447
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.257883478115872,
-      "end_time": 31.07644995067041,
-      "duration": 3.8185664725545365,
-      "start_frame": 436126,
-      "duration_frames": 61097,
-      "overlap": true,
-      "utterance_id": "253-124400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-124400.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 56685
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.817736993627442,
-      "start_time": 18.054723193723103
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_7.wav",
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-      "start_time": 10.910279098756835
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6954/laugh/0054.wav",
-      "duration": 1.0,
-      "start_time": 11.0933048751922,
-      "speaker_id": "6954"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/253/laugh/0094.wav",
-      "duration": 0.9339649402787014,
-      "start_time": 15.881866775400184,
-      "speaker_id": "253"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6954/laugh/0001.wav",
-      "duration": 1.2440630544192053,
-      "start_time": 22.788430526652924,
-      "speaker_id": "6954"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/60/laugh/0093.wav",
-      "duration": 0.6032870753991193,
-      "start_time": 22.18747076145692,
-      "speaker_id": "60"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/253/cough/0064.wav",
-      "duration": 0.3180900260642271,
-      "start_time": 26.869755954094504,
-      "speaker_id": "253"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023775.json b/conversations/conv_023775.json
deleted file mode 100644
index 7a213b22f94721f6387b0bafbcc14be827fff032..0000000000000000000000000000000000000000
--- a/conversations/conv_023775.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.02411686849177,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.715281473018253,
-      "duration": 4.715281473018253,
-      "start_frame": 0,
-      "duration_frames": 75444,
-      "overlap": false,
-      "utterance_id": "3224-168204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168204.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.034142466148695,
-      "end_time": 9.898605394450176,
-      "duration": 4.86446292830148,
-      "start_frame": 80546,
-      "duration_frames": 77831,
-      "overlap": false,
-      "utterance_id": "6368-230929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-230929.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.31663147360488,
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-      "duration": 6.931851402782309,
-      "start_frame": 181066,
-      "duration_frames": 110909,
-      "overlap": false,
-      "utterance_id": "6892-256226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256226.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.914080786034766,
-      "end_time": 24.06347006391677,
-      "duration": 5.149389277882005,
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-      "duration_frames": 82390,
-      "overlap": false,
-      "utterance_id": "6892-256224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256224.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.468091119496147,
-      "end_time": 30.085599330494748,
-      "duration": 5.617508210998601,
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-      "duration_frames": 89880,
-      "overlap": false,
-      "utterance_id": "6892-278268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-278268.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.95314703063195,
-      "end_time": 31.02411686849177,
-      "duration": 1.0709698378598205,
-      "start_frame": 479250,
-      "duration_frames": 17135,
-      "overlap": true,
-      "utterance_id": "6368-230929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-230929.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 77831
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_2.wav",
-      "duration": 0.3626530612244898,
-      "start_time": 5.81018278684354
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3224/laugh/0067.wav",
-      "duration": 1.22,
-      "start_time": 2.7464963573732084,
-      "speaker_id": "3224"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3224/cough/0062.wav",
-      "duration": 1.36,
-      "start_time": 4.759059493984097,
-      "speaker_id": "3224"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6368/laugh/0053.wav",
-      "duration": 1.24,
-      "start_time": 10.000286218632374,
-      "speaker_id": "6368"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6892/laugh/0087.wav",
-      "duration": 0.7447868273649734,
-      "start_time": 24.17762187507227,
-      "speaker_id": "6892"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6892/cough/0070.wav",
-      "duration": 1.08,
-      "start_time": 30.174161826656697,
-      "speaker_id": "6892"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6368/laugh/0080.wav",
-      "duration": 1.32,
-      "start_time": 28.40199090319787,
-      "speaker_id": "6368"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023779.json b/conversations/conv_023779.json
deleted file mode 100644
index ea2bd022bdcea3bbeb6b8f8a1b32d73bd86415bd..0000000000000000000000000000000000000000
--- a/conversations/conv_023779.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.519823329178514,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.77800933675825,
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-      "start_frame": 0,
-      "duration_frames": 76448,
-      "overlap": false,
-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.574936960971844,
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-      "overlap": true,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.442882515726128,
-      "end_time": 16.573273424428656,
-      "duration": 4.13039090870253,
-      "start_frame": 199086,
-      "duration_frames": 66086,
-      "overlap": false,
-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 76448
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.545562728905367,
-      "end_time": 21.582651934530794,
-      "duration": 5.037089205625429,
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-      "duration_frames": 80593,
-      "overlap": true,
-      "utterance_id": "7030-64588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.695594932258114,
-      "end_time": 27.518898581422505,
-      "duration": 4.823303649164392,
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-      "duration_frames": 77172,
-      "overlap": false,
-      "utterance_id": "1383-130532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130532.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.88999070004253,
-      "end_time": 31.519823329178514,
-      "duration": 3.629832629135981,
-      "start_frame": 446239,
-      "duration_frames": 58077,
-      "overlap": false,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 109940
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1383/laugh/0103.wav",
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-      "start_time": 3.3398753496030453,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/laugh/0020.wav",
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-      "speaker_id": "845"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1383/laugh/0032.wav",
-      "duration": 1.2,
-      "start_time": 11.027781075998707,
-      "speaker_id": "1383"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1383/cough/0089.wav",
-      "duration": 1.0,
-      "start_time": 11.292621514658771,
-      "speaker_id": "1383"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7030/cough/0024.wav",
-      "duration": 1.0097371615999653,
-      "start_time": 21.644154983591847,
-      "speaker_id": "7030"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1383/cough/0025.wav",
-      "duration": 1.2070226752667819,
-      "start_time": 27.62526957349575,
-      "speaker_id": "1383"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023780.json b/conversations/conv_023780.json
deleted file mode 100644
index b7256dd271c8d8c18c677c311b54a281c665076c..0000000000000000000000000000000000000000
--- a/conversations/conv_023780.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 3.2927348533327043,
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-      "utterance_id": "3227-24784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.819331580457889,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-73127.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.408286235557703,
-      "end_time": 15.538629263537642,
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\ No newline at end of file
diff --git a/conversations/conv_023781.json b/conversations/conv_023781.json
deleted file mode 100644
index a3046f2e80013425540f727f0aa5d93aff06b835..0000000000000000000000000000000000000000
--- a/conversations/conv_023781.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "real_speaker_id": "5157",
-      "position_frames": 0
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-      "real_speaker_id": "2691",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "real_speaker_id": "3092",
-      "position_frames": 120578
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_023791.json b/conversations/conv_023791.json
deleted file mode 100644
index 40b9297c98840408051758c4fe955bb6789a5f01..0000000000000000000000000000000000000000
--- a/conversations/conv_023791.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.028400040814496,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
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-      "real_speaker_id": "4463",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-86787.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 86628
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-  ],
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "7121"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023796.json b/conversations/conv_023796.json
deleted file mode 100644
index 4dbaef4cf72c6bdba3ea5a07c938c6cf031db645..0000000000000000000000000000000000000000
--- a/conversations/conv_023796.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2275-150141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2275-150141.flac |",
-      "real_speaker_id": "2275",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-231834.flac |",
-      "real_speaker_id": "6519",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2275-150141.flac |",
-      "real_speaker_id": "2275",
-      "position_frames": 86721
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6549-71118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6549-71118.flac |",
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-    {
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-      "real_speaker_id": "6549",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2275-150141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2275-150141.flac |",
-      "real_speaker_id": "2275",
-      "position_frames": 168176
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2275/laugh/0041.wav",
-      "duration": 1.34,
-      "start_time": 10.807286467549364,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6549/laugh/0103.wav",
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-      "start_time": 20.61417303082498,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2275/laugh/0033.wav",
-      "duration": 1.52,
-      "start_time": 30.48,
-      "speaker_id": "2275"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023806.json b/conversations/conv_023806.json
deleted file mode 100644
index 394230b8e915f07250ac8f035bc41239de5dde64..0000000000000000000000000000000000000000
--- a/conversations/conv_023806.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_023807.json b/conversations/conv_023807.json
deleted file mode 100644
index 048ebae89749a79aad90a71a607d9400e39a7758..0000000000000000000000000000000000000000
--- a/conversations/conv_023807.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "overlap_rate": 0.16666666666666666,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_023811.json b/conversations/conv_023811.json
deleted file mode 100644
index 7e35b2c3af069f93b488f212cb42a9a91d1fdcfa..0000000000000000000000000000000000000000
--- a/conversations/conv_023811.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_023827.json b/conversations/conv_023827.json
deleted file mode 100644
index 93f0fcd9b2cd2329afe151bf050410476fb55f49..0000000000000000000000000000000000000000
--- a/conversations/conv_023827.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5570-73847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73847.flac |",
-      "real_speaker_id": "5570",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
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-      "utterance_id": "5570-73848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73848.flac |",
-      "real_speaker_id": "5570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "2060",
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-      "real_speaker_id": "5867",
-      "position_frames": 70131
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
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-      "position_frames": 154847
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-  ],
-  "background_events": [],
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-}
\ No newline at end of file
diff --git a/conversations/conv_023831.json b/conversations/conv_023831.json
deleted file mode 100644
index 69c5a48c3cb7980f33556da734b67c4ac836345f..0000000000000000000000000000000000000000
--- a/conversations/conv_023831.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.39250723672915,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-  "paralinguistic_events": [
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-      "duration": 1.12,
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-}
\ No newline at end of file
diff --git a/conversations/conv_023846.json b/conversations/conv_023846.json
deleted file mode 100644
index bb7995fa8013eca4ebd094ef2e087b4c0acfd2e9..0000000000000000000000000000000000000000
--- a/conversations/conv_023846.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "667-105002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.654511393999849,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4767-66411.flac |",
-      "real_speaker_id": "4767",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "4770-25951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4770-25951.flac |",
-      "real_speaker_id": "4770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.24001262197907,
-      "end_time": 25.518475120802496,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4767-66411.flac |",
-      "real_speaker_id": "4767",
-      "position_frames": 86978
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "4767-66411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4767-66411.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_023850.json b/conversations/conv_023850.json
deleted file mode 100644
index 7981086b1eda0f677c2c207029991755bb4eb58c..0000000000000000000000000000000000000000
--- a/conversations/conv_023850.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6549-71114.flac |",
-      "real_speaker_id": "6549",
-      "position_frames": 0
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-      "real_speaker_id": "6549",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-66347.flac |",
-      "real_speaker_id": "5802",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-76044.flac |",
-      "real_speaker_id": "5802",
-      "position_frames": 91857
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7286-92930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7286-92930.flac |",
-      "real_speaker_id": "7286",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "duration": 1.4,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5802/laugh/0047.wav",
-      "duration": 1.2,
-      "start_time": 22.456900306166165,
-      "speaker_id": "5802"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023851.json b/conversations/conv_023851.json
deleted file mode 100644
index 81b150141fe35d27b9fa7713f7ef79a2efd2998a..0000000000000000000000000000000000000000
--- a/conversations/conv_023851.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.71670445504468,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2149-7235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-7235.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.872323303883556,
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-      "utterance_id": "964-140397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/964-140397.flac |",
-      "real_speaker_id": "964",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.798502030808166,
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-      "utterance_id": "2149-7239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-7239.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.0256280340764,
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-      "utterance_id": "1018-135221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1018-135221.flac |",
-      "real_speaker_id": "1018",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.17947760649145,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-8912.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
-    },
-    {
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-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.32,
-      "start_time": 19.812750731045302,
-      "speaker_id": "2149"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/964/laugh/0052.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/964/cough/0096.wav",
-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "964"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023866.json b/conversations/conv_023866.json
deleted file mode 100644
index 512d7e7f4fb03f8dd516643b91feea1c63dffd6d..0000000000000000000000000000000000000000
--- a/conversations/conv_023866.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.697267780418194,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3889-130125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-130125.flac |",
-      "real_speaker_id": "3889",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-55202.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-130125.flac |",
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-      "utterance_id": "5968-71320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-71320.flac |",
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-      "segment_id": "seg0004",
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-      "utterance_id": "78-369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-369.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-130125.flac |",
-      "real_speaker_id": "3889",
-      "position_frames": 154820
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-368.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3889/laugh/0085.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3889/cough/0126.wav",
-      "duration": 0.9941336143672759,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3889/laugh/0019.wav",
-      "duration": 1.0,
-      "start_time": 30.115336764709678,
-      "speaker_id": "3889"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023870.json b/conversations/conv_023870.json
deleted file mode 100644
index ce541ce2bda600b518d34a7bd7ef2edad264adee..0000000000000000000000000000000000000000
--- a/conversations/conv_023870.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.634492125608073,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 66940,
-      "overlap": false,
-      "utterance_id": "7178-34645",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34645.flac |",
-      "real_speaker_id": "7178",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.731460697003548,
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-      "utterance_id": "811-130148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 0
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-      "start_time": 9.30058544854515,
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-      "duration": 6.012393754394998,
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-      "overlap": true,
-      "utterance_id": "5860-67891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5860-67891.flac |",
-      "real_speaker_id": "5860",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.006902812175117,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 72748
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5860-67891.flac |",
-      "real_speaker_id": "5860",
-      "position_frames": 96198
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "811-130143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130143.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "811"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023882.json b/conversations/conv_023882.json
deleted file mode 100644
index b41f4064ecbf6a4e84e8cd6b11d23e1d53a2283a..0000000000000000000000000000000000000000
--- a/conversations/conv_023882.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.96294175987076,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-114605.flac |",
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-      "position_frames": 0
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-      "utterance_id": "125-121342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/125-121342.flac |",
-      "real_speaker_id": "125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.794385580258265,
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-      "duration": 6.602690580453229,
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-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 86688
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7491-114606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-114606.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.74,
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-      "speaker_id": "7491"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023885.json b/conversations/conv_023885.json
deleted file mode 100644
index f35eb7e05dbed9f935ea66265b3524cee0f5049e..0000000000000000000000000000000000000000
--- a/conversations/conv_023885.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7240-92200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92200.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.101454522855548,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70191.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 90516,
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-      "utterance_id": "7240-108066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-108066.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "6272-70191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70191.flac |",
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-      "position_frames": 79694
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-108066.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 90516
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2998-160954",
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-      "real_speaker_id": "2998",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "7240"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7240/cough/0004.wav",
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\ No newline at end of file
diff --git a/conversations/conv_023889.json b/conversations/conv_023889.json
deleted file mode 100644
index bd862a7ae7b9025628c69e08567bbccc83cf7bb5..0000000000000000000000000000000000000000
--- a/conversations/conv_023889.json
+++ /dev/null
@@ -1,88 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.698420217192112,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.30389835732387,
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_023893.json b/conversations/conv_023893.json
deleted file mode 100644
index bee37c0590b35d444023a79062f9473da2037029..0000000000000000000000000000000000000000
--- a/conversations/conv_023893.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.351212985244416,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
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-      "position_frames": 82010
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_023894.json b/conversations/conv_023894.json
deleted file mode 100644
index 6093115f99bfd6a71c9ce66eefbdac8857dc8891..0000000000000000000000000000000000000000
--- a/conversations/conv_023894.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_023903.json b/conversations/conv_023903.json
deleted file mode 100644
index 7bbba8677e42f2496743c9d338f69867b634a844..0000000000000000000000000000000000000000
--- a/conversations/conv_023903.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_023914.json b/conversations/conv_023914.json
deleted file mode 100644
index 7564fb3a0a0c28095d6258f30736e98ade1491d3..0000000000000000000000000000000000000000
--- a/conversations/conv_023914.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "6395",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88483.flac |",
-      "real_speaker_id": "7095",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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\ No newline at end of file
diff --git a/conversations/conv_023915.json b/conversations/conv_023915.json
deleted file mode 100644
index 837bf477f31cef5549224d57db2515744f5584a5..0000000000000000000000000000000000000000
--- a/conversations/conv_023915.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 4.3595937609917605,
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-      "utterance_id": "3045-155991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-155991.flac |",
-      "real_speaker_id": "3045",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.155900357816419,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-163406.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-163406.flac |",
-      "real_speaker_id": "3045",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023919.json b/conversations/conv_023919.json
deleted file mode 100644
index 2bea7ee27003bc40556a83b58d2735b5067d39c3..0000000000000000000000000000000000000000
--- a/conversations/conv_023919.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-153219.flac |",
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-      "position_frames": 0
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-    {
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023923.json b/conversations/conv_023923.json
deleted file mode 100644
index 4acc63a25199512532469c0a7da4216bf4363ace..0000000000000000000000000000000000000000
--- a/conversations/conv_023923.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153281.flac |",
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-      "start_time": 31.418653311461668,
-      "speaker_id": "8432"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023928.json b/conversations/conv_023928.json
deleted file mode 100644
index c72bf14ea4f88dfaa9cdfe86b9c1d011e4081123..0000000000000000000000000000000000000000
--- a/conversations/conv_023928.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6726621454026254,
-      "duration": 3.6726621454026254,
-      "start_frame": 0,
-      "duration_frames": 58762,
-      "overlap": false,
-      "utterance_id": "7079-89644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-89644.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8137135602497354,
-      "end_time": 9.885519500175617,
-      "duration": 6.0718059399258815,
-      "start_frame": 61019,
-      "duration_frames": 97148,
-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.621838334635697,
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-      "overlap": false,
-      "utterance_id": "7079-89644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-89644.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 58762
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.171106683599834,
-      "end_time": 22.278168473091227,
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-      "utterance_id": "2785-154282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-154282.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.822701018134687,
-      "end_time": 26.87794568237238,
-      "duration": 4.055244664237694,
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-      "duration_frames": 64883,
-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 97148
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.508955380931724,
-      "end_time": 32.0,
-      "duration": 4.491044619068276,
-      "start_frame": 440143,
-      "duration_frames": 71856,
-      "overlap": false,
-      "utterance_id": "7079-89644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-89644.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 145084
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 18.24988172353865,
-      "start_time": 4.909460343321749
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2785/cough/0113.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7957/laugh/0062.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 23.720720615166215,
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-    {
-      "event_class": "cough",
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-      "duration": 1.1348875151054112,
-      "start_time": 30.86511248489459,
-      "speaker_id": "7079"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023935.json b/conversations/conv_023935.json
deleted file mode 100644
index bc7e2a0fa2e40c2f307a13cd3f789c0c97dbdcd2..0000000000000000000000000000000000000000
--- a/conversations/conv_023935.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 91171,
-      "overlap": false,
-      "utterance_id": "5062-294700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294700.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.57340394681713,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-134149.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 62228
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.105007290213408,
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-      "utterance_id": "4148-183988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-183988.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.026844851599037,
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-      "overlap": false,
-      "utterance_id": "5062-294697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294697.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.455105020999945,
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-      "duration": 0.5448949790000555,
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-      "utterance_id": "4148-183988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-183988.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 57357
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5062/laugh/0019.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "5062"
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-    {
-      "event_class": "cough",
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-      "duration": 1.2769284245312584,
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-      "speaker_id": "1987"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 9.113487234603843,
-      "speaker_id": "4148"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023939.json b/conversations/conv_023939.json
deleted file mode 100644
index 3e2194fa97666a34c6523a97bc550b7835e16b4e..0000000000000000000000000000000000000000
--- a/conversations/conv_023939.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3513-7741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-7741.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "4122",
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-    },
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-      "position_frames": 102414
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4122-157669.flac |",
-      "real_speaker_id": "4122",
-      "position_frames": 52625
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023942.json b/conversations/conv_023942.json
deleted file mode 100644
index 78a9789d15c9125983f3670ca27b86e3b7778750..0000000000000000000000000000000000000000
--- a/conversations/conv_023942.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8710-295447",
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-      "position_frames": 0
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-    {
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-      "duration": 1.8697896987931344,
-      "start_frame": 482083,
-      "duration_frames": 29916,
-      "overlap": false,
-      "utterance_id": "501-125127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125127.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2979/laugh/0029.wav",
-      "duration": 0.657084848212738,
-      "start_time": 6.1416573235703895,
-      "speaker_id": "2979"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8710/laugh/0120.wav",
-      "duration": 0.8924535444650294,
-      "start_time": 20.07583466587535,
-      "speaker_id": "8710"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8710/laugh/0108.wav",
-      "duration": 1.44,
-      "start_time": 29.801515293759046,
-      "speaker_id": "8710"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023943.json b/conversations/conv_023943.json
deleted file mode 100644
index 7e9e3b130d79208ceede82633072d47c99e92e42..0000000000000000000000000000000000000000
--- a/conversations/conv_023943.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.359076522080404,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3158852898040525,
-      "duration": 3.3158852898040525,
-      "start_frame": 0,
-      "duration_frames": 53054,
-      "overlap": false,
-      "utterance_id": "2930-163436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163436.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8511386694496452,
-      "end_time": 8.238931161433818,
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-      "start_frame": 61618,
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-      "overlap": false,
-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.76041243752328,
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-      "duration_frames": 93291,
-      "overlap": false,
-      "utterance_id": "2930-163437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163437.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.087103413827876,
-      "end_time": 23.311135178553076,
-      "duration": 6.224031764725201,
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-      "duration_frames": 99584,
-      "overlap": false,
-      "utterance_id": "3020-892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-892.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.6275977806107,
-      "end_time": 27.347352043463815,
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-      "overlap": false,
-      "utterance_id": "3912-3831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-3831.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.389232800200656,
-      "end_time": 31.359076522080404,
-      "duration": 3.969843721879748,
-      "start_frame": 438227,
-      "duration_frames": 63517,
-      "overlap": true,
-      "utterance_id": "2930-163437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163437.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 93291
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3020/cough/0022.wav",
-      "duration": 0.4341980148142787,
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-      "speaker_id": "3020"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3912/laugh/0049.wav",
-      "duration": 0.7120204341823162,
-      "start_time": 22.79269831421767,
-      "speaker_id": "3912"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/laugh/0054.wav",
-      "duration": 1.26,
-      "start_time": 29.52319301900903,
-      "speaker_id": "2930"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023954.json b/conversations/conv_023954.json
deleted file mode 100644
index 5ca10c078b27120a24060ad69efeadc1ea3c41fe..0000000000000000000000000000000000000000
--- a/conversations/conv_023954.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "690-134308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-134308.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "7618-102372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102372.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "690-128665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-128665.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.393635223392824,
-      "end_time": 22.91478157481242,
-      "duration": 6.521146351419596,
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-      "duration_frames": 104338,
-      "overlap": false,
-      "utterance_id": "7618-102372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102372.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 76685
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.404645856578625,
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-      "overlap": false,
-      "utterance_id": "4800-73729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.462769090248386,
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-      "utterance_id": "7618-102367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102367.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_16.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/690/laugh/0062.wav",
-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "690"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7618/cough/0061.wav",
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-      "speaker_id": "7618"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023958.json b/conversations/conv_023958.json
deleted file mode 100644
index 6c45b438dd0a1db7b40caa362837d6a58298d3a5..0000000000000000000000000000000000000000
--- a/conversations/conv_023958.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7384-84010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7384-84010.flac |",
-      "real_speaker_id": "7384",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.925089367285786,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
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-    {
-      "segment_id": "seg0002",
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-      "start_frame": 187041,
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-      "utterance_id": "7384-84010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7384-84010.flac |",
-      "real_speaker_id": "7384",
-      "position_frames": 79615
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 87870
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8272-279789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 139404
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7384-84010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7384-84010.flac |",
-      "real_speaker_id": "7384",
-      "position_frames": 165961
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-  "background_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_023962.json b/conversations/conv_023962.json
deleted file mode 100644
index 63564275e81da2146f1a3180f40ef135cca56f37..0000000000000000000000000000000000000000
--- a/conversations/conv_023962.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.54588911504505,
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-      "start_frame": 0,
-      "duration_frames": 88734,
-      "overlap": false,
-      "utterance_id": "8609-283227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8609-283227.flac |",
-      "real_speaker_id": "8609",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.9448149230404015,
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-      "utterance_id": "7121-88076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-88076.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8609-283227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8609-283227.flac |",
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-      "position_frames": 88734
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3171",
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-    {
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-      "utterance_id": "7121-88076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-88076.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 96448
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.523569676500557,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8609-262281.flac |",
-      "real_speaker_id": "8609",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8609/laugh/0020.wav",
-      "duration": 1.12,
-      "start_time": 3.9287560078420385,
-      "speaker_id": "8609"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 11.052867483821187,
-      "speaker_id": "8609"
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-      "event_class": "cough",
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-      "speaker_id": "8609"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023969.json b/conversations/conv_023969.json
deleted file mode 100644
index 01c161b5de1d0ad845540705c88f7462d79bf654..0000000000000000000000000000000000000000
--- a/conversations/conv_023969.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.950289795823387,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.301577979619041,
-      "duration": 5.301577979619041,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "22-121148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121148.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.969927517954209,
-      "end_time": 10.9210152418125,
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-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 11.232750249940946,
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-      "utterance_id": "4813-248638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248638.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.81749177785942,
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-      "overlap": false,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 79217
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.451946982499845,
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-      "utterance_id": "22-121140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121140.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.81934037905325,
-      "end_time": 31.950289795823387,
-      "duration": 4.130949416770135,
-      "start_frame": 445109,
-      "duration_frames": 66095,
-      "overlap": false,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 139529
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5005/laugh/0103.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5005/laugh/0000.wav",
-      "duration": 1.12,
-      "start_time": 20.849365503120627,
-      "speaker_id": "5005"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023974.json b/conversations/conv_023974.json
deleted file mode 100644
index a04c3ce8f8c7ea9abfb3315e381a3417855d780f..0000000000000000000000000000000000000000
--- a/conversations/conv_023974.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2229-152864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152864.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.6582093820477968,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152864.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 48609
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
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-      "utterance_id": "4837-302000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4837-302000.flac |",
-      "real_speaker_id": "4837",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.557430738063644,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152864.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 148605
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-      "utterance_id": "8772-295710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-295710.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.63817096771536,
-      "end_time": 32.0,
-      "duration": 1.3618290322846391,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4837-285896.flac |",
-      "real_speaker_id": "4837",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2229/laugh/0089.wav",
-      "duration": 0.7651906595271732,
-      "start_time": 27.368129799234104,
-      "speaker_id": "2229"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023978.json b/conversations/conv_023978.json
deleted file mode 100644
index dc1b084673b0b73d37d1f3517a224ef20b467b16..0000000000000000000000000000000000000000
--- a/conversations/conv_023978.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "19-227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75362.flac |",
-      "real_speaker_id": "7139",
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-      "utterance_id": "5720-48302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5720-48302.flac |",
-      "real_speaker_id": "5720",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.510035995248153,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-88748.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 4.805035974868183,
-      "start_frame": 435119,
-      "duration_frames": 76880,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5720-48302.flac |",
-      "real_speaker_id": "5720",
-      "position_frames": 72003
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_3.wav",
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-  "paralinguistic_events": [
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-      "start_time": 5.530141862411638,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/19/laugh/0066.wav",
-      "duration": 0.5436787634326908,
-      "start_time": 14.479038858422001,
-      "speaker_id": "19"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023980.json b/conversations/conv_023980.json
deleted file mode 100644
index 9f1194948d08c2125ad0860e61a5af2a4f473348..0000000000000000000000000000000000000000
--- a/conversations/conv_023980.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "5868-54659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5868-54659.flac |",
-      "real_speaker_id": "5868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "6426-64291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64291.flac |",
-      "real_speaker_id": "6426",
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-    {
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-      "overlap": false,
-      "utterance_id": "3098-5406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5406.flac |",
-      "real_speaker_id": "3098",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5868",
-      "position_frames": 103674
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3098-5407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5407.flac |",
-      "real_speaker_id": "3098",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5868-54659.flac |",
-      "real_speaker_id": "5868",
-      "position_frames": 169771
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "speaker_id": "5868"
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-}
\ No newline at end of file
diff --git a/conversations/conv_023981.json b/conversations/conv_023981.json
deleted file mode 100644
index 86e86dce03c9ab8310201f38a487558da6114d2f..0000000000000000000000000000000000000000
--- a/conversations/conv_023981.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.495473626292936,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132718.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-134968.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "start_time": 17.74315342211129,
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-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
-      "position_frames": 122676
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "339-132717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132717.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.948823872434428,
-      "end_time": 32.0,
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\ No newline at end of file
diff --git a/conversations/conv_023986.json b/conversations/conv_023986.json
deleted file mode 100644
index 3a4e8f110362862e0138cdae974f404c23df96a6..0000000000000000000000000000000000000000
--- a/conversations/conv_023986.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.95638802292615,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
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-      "real_speaker_id": "596",
-      "position_frames": 74330
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7514-96429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 87584
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "4490-16002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16002.flac |",
-      "real_speaker_id": "4490",
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-      "event_class": "Blender",
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-      "speaker_id": "596"
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-    {
-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4490/laugh/0033.wav",
-      "duration": 1.02,
-      "start_time": 30.98,
-      "speaker_id": "4490"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023990.json b/conversations/conv_023990.json
deleted file mode 100644
index c93452c05ed9adc3a1c5a5474caca11f649a93fd..0000000000000000000000000000000000000000
--- a/conversations/conv_023990.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6512-72577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6512-72577.flac |",
-      "real_speaker_id": "6512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.199771977275967,
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-      "utterance_id": "5604-26982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26982.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6512-72577.flac |",
-      "real_speaker_id": "6512",
-      "position_frames": 98128
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26982.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 62530
-    },
-    {
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-      "real_speaker_id": "6512",
-      "position_frames": 197453
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-    {
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-      "utterance_id": "1696-142314",
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-      "real_speaker_id": "1696",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-    {
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-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1696/laugh/0010.wav",
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-    {
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-      "start_time": 31.08,
-      "speaker_id": "1696"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_023997.json b/conversations/conv_023997.json
deleted file mode 100644
index a94d689263a44765b375c90a6a48ac0116b2fa90..0000000000000000000000000000000000000000
--- a/conversations/conv_023997.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2405-182390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-182390.flac |",
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-      "utterance_id": "2405-182390",
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-      "real_speaker_id": "2405",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34607.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.56262204831583,
-      "end_time": 28.087302992117728,
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-      "start_frame": 377001,
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-      "utterance_id": "7327-96492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-96492.flac |",
-      "real_speaker_id": "7327",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.664307048508224,
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-      "utterance_id": "2405-182390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-182390.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 174861
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
-      "duration": 4.404604240490215,
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2405/laugh/0108.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "2405"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7327/laugh/0140.wav",
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-      "start_time": 26.267909814868933,
-      "speaker_id": "7327"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024004.json b/conversations/conv_024004.json
deleted file mode 100644
index e8af6507679950d894d94a7a698c347e6e413dcf..0000000000000000000000000000000000000000
--- a/conversations/conv_024004.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.023511639834073,
-      "duration": 4.023511639834073,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2582-155973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155973.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.438818058719161,
-      "end_time": 10.643572510737918,
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-      "duration_frames": 99276,
-      "overlap": false,
-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.473933332934797,
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-      "utterance_id": "2582-155973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155973.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 64376
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 99276
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2582-155972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155972.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 193244
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 0.84,
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024008.json b/conversations/conv_024008.json
deleted file mode 100644
index a1f91ca5a5245c05ad9bbcd6daeb750a86b4e37b..0000000000000000000000000000000000000000
--- a/conversations/conv_024008.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1363-139304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-139304.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.891126253836754,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
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-      "overlap": false,
-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.39924700928153,
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-      "position_frames": 88408
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 159470
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.60546623167403,
-      "end_time": 32.0,
-      "duration": 0.39453376832597087,
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 80473
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1049/laugh/0062.wav",
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-      "start_time": 21.97366787848004,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1363/cough/0043.wav",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024012.json b/conversations/conv_024012.json
deleted file mode 100644
index cb0df54ef867eb6a0b4550edd5a55a8d5d57643d..0000000000000000000000000000000000000000
--- a/conversations/conv_024012.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
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-    {
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-      "position_frames": 179271
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-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4964/laugh/0076.wav",
-      "duration": 1.2,
-      "start_time": 23.61172319389963,
-      "speaker_id": "4964"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024024.json b/conversations/conv_024024.json
deleted file mode 100644
index faab546a0a38b38d9242343ffee2bc13c0796de2..0000000000000000000000000000000000000000
--- a/conversations/conv_024024.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.311268762226238,
-      "duration": 4.311268762226238,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.430436505037594,
-      "end_time": 9.357568832434115,
-      "duration": 3.9271323273965217,
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-      "duration_frames": 62834,
-      "overlap": false,
-      "utterance_id": "3645-77173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-77173.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.687441274201408,
-      "end_time": 13.180697138335693,
-      "duration": 3.493255864134286,
-      "start_frame": 154999,
-      "duration_frames": 55892,
-      "overlap": false,
-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 68980
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.334568822303567,
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-      "duration": 4.525384467427556,
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-      "utterance_id": "3645-39840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-39840.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.089348132274203,
-      "end_time": 23.06016823353096,
-      "duration": 4.970820101256755,
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-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.569983917550523,
-      "end_time": 28.22075847006897,
-      "duration": 4.6507745525184445,
-      "start_frame": 377119,
-      "duration_frames": 74412,
-      "overlap": false,
-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 124872
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.28785472579594,
-      "end_time": 32.0,
-      "duration": 2.7121452742040617,
-      "start_frame": 468605,
-      "duration_frames": 43394,
-      "overlap": false,
-      "utterance_id": "3645-186230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-186230.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
-      "duration": 1.8308444757392905,
-      "start_time": 14.026765551074213
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3645/cough/0014.wav",
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-      "start_time": 4.0160388895224015,
-      "speaker_id": "3645"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3645/laugh/0010.wav",
-      "duration": 0.5072805025696447,
-      "start_time": 18.016939023660672,
-      "speaker_id": "3645"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7552/laugh/0098.wav",
-      "duration": 1.1,
-      "start_time": 26.01232369469097,
-      "speaker_id": "7552"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3645/cough/0083.wav",
-      "duration": 1.1023041793208406,
-      "start_time": 28.024841246828675,
-      "speaker_id": "3645"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024028.json b/conversations/conv_024028.json
deleted file mode 100644
index 610aba2df52a1bf9aa4f6621a6b3ba131a096f67..0000000000000000000000000000000000000000
--- a/conversations/conv_024028.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.143345665438982,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.10908090564185,
-      "duration": 4.10908090564185,
-      "start_frame": 0,
-      "duration_frames": 65745,
-      "overlap": false,
-      "utterance_id": "348-128030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-128030.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.711976733569587,
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-      "duration": 3.345511769454657,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-3966.flac |",
-      "real_speaker_id": "8142",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.675328576972044,
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-      "overlap": false,
-      "utterance_id": "348-132611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132611.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.80414646579069,
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-      "overlap": false,
-      "utterance_id": "548-126959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126959.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.60115971486518,
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-      "overlap": false,
-      "utterance_id": "348-132751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132751.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.743467995793353,
-      "end_time": 31.143345665438982,
-      "duration": 3.39987766964563,
-      "start_frame": 443895,
-      "duration_frames": 54398,
-      "overlap": false,
-      "utterance_id": "548-126961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/348/laugh/0038.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "348"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/548/cough/0059.wav",
-      "duration": 0.429818644806638,
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-      "speaker_id": "548"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/348/laugh/0137.wav",
-      "duration": 0.8544430814285079,
-      "start_time": 24.344778496607304,
-      "speaker_id": "348"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/548/laugh/0105.wav",
-      "duration": 1.2022136482018781,
-      "start_time": 26.311550786975438,
-      "speaker_id": "548"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/548/cough/0051.wav",
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-      "start_time": 30.71470318447056,
-      "speaker_id": "548"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024032.json b/conversations/conv_024032.json
deleted file mode 100644
index bb19a1891d6f549a50ec883e9c87248cd7797066..0000000000000000000000000000000000000000
--- a/conversations/conv_024032.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 5.457554871619405,
-      "start_frame": 0,
-      "duration_frames": 87320,
-      "overlap": false,
-      "utterance_id": "1184-135536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135536.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.379350831560751,
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-      "utterance_id": "6399-278844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278844.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.10021854304409,
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-      "overlap": false,
-      "utterance_id": "1184-135532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135532.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.973225331550317,
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-      "utterance_id": "6399-278844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278844.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 103433
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.2254846137006,
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-      "duration": 4.707901100939282,
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-      "utterance_id": "1184-135536",
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-      "real_speaker_id": "1184",
-      "position_frames": 87320
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.87578121086998,
-      "end_time": 32.0,
-      "duration": 3.124218789130019,
-      "start_frame": 462012,
-      "duration_frames": 49987,
-      "overlap": false,
-      "utterance_id": "6399-278846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278846.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1184/laugh/0075.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6399/laugh/0020.wav",
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-      "start_time": 23.215567102194658,
-      "speaker_id": "6399"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024039.json b/conversations/conv_024039.json
deleted file mode 100644
index 73ec5d509cb7654ee2a230409287380980f5bbb2..0000000000000000000000000000000000000000
--- a/conversations/conv_024039.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.82881869167999,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.183850597964304,
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-      "utterance_id": "9000-282380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282380.flac |",
-      "real_speaker_id": "9000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.388559324264187,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
-      "real_speaker_id": "7125",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7125-87278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
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-      "position_frames": 86082
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "4345",
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-      "segment_id": "seg0004",
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-      "overlap": false,
-      "utterance_id": "9000-282380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282380.flac |",
-      "real_speaker_id": "9000",
-      "position_frames": 66941
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/9000/laugh/0028.wav",
-      "duration": 1.04,
-      "start_time": 4.336475960144232,
-      "speaker_id": "9000"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7125/laugh/0015.wav",
-      "duration": 0.6370005583206186,
-      "start_time": 7.463523203602334,
-      "speaker_id": "7125"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/9000/laugh/0078.wav",
-      "duration": 0.731551724252859,
-      "start_time": 31.06205318463843,
-      "speaker_id": "9000"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024044.json b/conversations/conv_024044.json
deleted file mode 100644
index ad3b702213a3601a324d0a90b6a393dbb5b29345..0000000000000000000000000000000000000000
--- a/conversations/conv_024044.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.176516912982165,
-      "duration": 3.176516912982165,
-      "start_frame": 0,
-      "duration_frames": 50824,
-      "overlap": false,
-      "utterance_id": "227-129974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/227-129974.flac |",
-      "real_speaker_id": "227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.559320463457763,
-      "end_time": 10.394727503837423,
-      "duration": 6.8354070403796605,
-      "start_frame": 56949,
-      "duration_frames": 109366,
-      "overlap": false,
-      "utterance_id": "4719-25766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.046578983731354,
-      "end_time": 15.64429959030719,
-      "duration": 4.597720606575836,
-      "start_frame": 176745,
-      "duration_frames": 73563,
-      "overlap": false,
-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.19607534582568,
-      "end_time": 19.98408790143087,
-      "duration": 3.78801255560519,
-      "start_frame": 259137,
-      "duration_frames": 60608,
-      "overlap": false,
-      "utterance_id": "227-129974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/227-129974.flac |",
-      "real_speaker_id": "227",
-      "position_frames": 50824
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.46825118075575,
-      "end_time": 28.34139039289371,
-      "duration": 6.873139212137961,
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-      "duration_frames": 109970,
-      "overlap": false,
-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 73563
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.16437847573339,
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-      "duration": 2.8356215242666103,
-      "start_frame": 466630,
-      "duration_frames": 45369,
-      "overlap": false,
-      "utterance_id": "4719-25765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
-      "duration": 4.709716891816035,
-      "start_time": 1.3522270004461978
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.306227986442511,
-      "start_time": 26.853285462700644
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_024045.json b/conversations/conv_024045.json
deleted file mode 100644
index f17f700a2798b2926d8b7dc54789e401db522906..0000000000000000000000000000000000000000
--- a/conversations/conv_024045.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.296454754998561,
-      "duration": 5.296454754998561,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.884033728537808,
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-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.19599942266074,
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-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 84743
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.091840577421017,
-      "end_time": 23.822864897612796,
-      "duration": 6.731024320191779,
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-      "utterance_id": "1639-132848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.978660306469862,
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-      "duration": 6.314956948849431,
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-      "duration_frames": 101039,
-      "overlap": false,
-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 102868
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.525115725105262,
-      "end_time": 32.0,
-      "duration": 1.4748842748947375,
-      "start_frame": 488401,
-      "duration_frames": 23598,
-      "overlap": false,
-      "utterance_id": "7226-86964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86964.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
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-    {
-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1639/laugh/0131.wav",
-      "duration": 1.12,
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-      "speaker_id": "1639"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024049.json b/conversations/conv_024049.json
deleted file mode 100644
index 27efadda3cc6cdd5ba3edf88d2f8cd43fce5845e..0000000000000000000000000000000000000000
--- a/conversations/conv_024049.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "667-105002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.285583997658942,
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-      "utterance_id": "4441-76262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76262.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "6531-61334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.78617987446038,
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-      "duration_frames": 72117,
-      "overlap": false,
-      "utterance_id": "667-105002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 77339
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.387909154467756,
-      "end_time": 27.420313043912774,
-      "duration": 4.032403889445018,
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-      "utterance_id": "6531-61334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
-      "position_frames": 96808
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4441-76263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76263.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024053.json b/conversations/conv_024053.json
deleted file mode 100644
index 5f28573ac7cf0f88bc2194d3cb7cf713c991d56f..0000000000000000000000000000000000000000
--- a/conversations/conv_024053.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.236867382327413,
-      "duration": 6.236867382327413,
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-      "duration_frames": 99789,
-      "overlap": false,
-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.735860139082482,
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-      "utterance_id": "362-123047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123047.flac |",
-      "real_speaker_id": "362",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.690385173141863,
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-      "duration_frames": 82980,
-      "overlap": false,
-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 99789
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1092-134562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134562.flac |",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "event_class": "laugh",
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-      "duration": 1.0686088929110664,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1092/cough/0047.wav",
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-      "start_time": 16.9593512030366,
-      "speaker_id": "1092"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024054.json b/conversations/conv_024054.json
deleted file mode 100644
index da853a98a9e4d183698008cef14741deeb3832b0..0000000000000000000000000000000000000000
--- a/conversations/conv_024054.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6203321142468585,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-62347.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163728.flac |",
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-      "start_time": 8.580884933605986,
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-      "utterance_id": "713-291178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.75793051899143,
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-      "utterance_id": "2553-163730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163730.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.872825745056574,
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-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.738830651065744,
-      "end_time": 32.0,
-      "duration": 4.261169348934256,
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-      "overlap": false,
-      "utterance_id": "2553-163728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163728.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 66148
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024065.json b/conversations/conv_024065.json
deleted file mode 100644
index e1ebcd702eaae661e338064e593918326f1af9f4..0000000000000000000000000000000000000000
--- a/conversations/conv_024065.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "1355",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 64733
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.14352225704646,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-91208.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 99809
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.387280893928846,
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-      "utterance_id": "1355-39947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 153269
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.078000061030792,
-      "end_time": 32.0,
-      "duration": 1.9219999389692077,
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-      "utterance_id": "7699-105389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105389.flac |",
-      "real_speaker_id": "7699",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
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-      "start_time": 30.92,
-      "speaker_id": "7699"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024069.json b/conversations/conv_024069.json
deleted file mode 100644
index 080401c78515d8b0979539a65faa769cc0f6d06c..0000000000000000000000000000000000000000
--- a/conversations/conv_024069.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.912615499842154,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-138296.flac |",
-      "real_speaker_id": "1085",
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-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "1085-35680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-35680.flac |",
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-      "real_speaker_id": "3606",
-      "position_frames": 65091
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "event_class": "Blender",
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-      "start_time": 30.76,
-      "speaker_id": "1085"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024073.json b/conversations/conv_024073.json
deleted file mode 100644
index 0c8d973031d1fd8a9adfba24fb158d67ee3eaa9b..0000000000000000000000000000000000000000
--- a/conversations/conv_024073.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39660.flac |",
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-      "segment_id": "seg0003",
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\ No newline at end of file
diff --git a/conversations/conv_024078.json b/conversations/conv_024078.json
deleted file mode 100644
index 39e674afcb8919e9903453eb7c8f4651da131d0d..0000000000000000000000000000000000000000
--- a/conversations/conv_024078.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2136",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40162.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
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-      "real_speaker_id": "5375",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6883-66623.flac |",
-      "real_speaker_id": "6883",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "duration": 1.31275219724089,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40162.flac |",
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-      "position_frames": 150146
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
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-      "speaker_id": "5375"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024081.json b/conversations/conv_024081.json
deleted file mode 100644
index a02fbe37c622dfee30ef76e7de861f4da8aa69af..0000000000000000000000000000000000000000
--- a/conversations/conv_024081.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "7408-255932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-255932.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98238.flac |",
-      "real_speaker_id": "7228",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024086.json b/conversations/conv_024086.json
deleted file mode 100644
index 283d2e4ef8a4f8d8739804af9242c2ef0e47d141..0000000000000000000000000000000000000000
--- a/conversations/conv_024086.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 0
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-      "position_frames": 168983
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-      "start_time": 30.64,
-      "speaker_id": "2946"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024090.json b/conversations/conv_024090.json
deleted file mode 100644
index 878b6ae36e0bc4421101395939e3a588f12591c2..0000000000000000000000000000000000000000
--- a/conversations/conv_024090.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5252-4876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4876.flac |",
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-      "real_speaker_id": "4926",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23281.flac |",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5252/laugh/0028.wav",
-      "duration": 0.9660690460027752,
-      "start_time": 0,
-      "speaker_id": "5252"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4926/laugh/0034.wav",
-      "duration": 1.340168862049248,
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\ No newline at end of file
diff --git a/conversations/conv_024097.json b/conversations/conv_024097.json
deleted file mode 100644
index c1df8a4c1df8e69aa91a7fdb301a18630b0ae94c..0000000000000000000000000000000000000000
--- a/conversations/conv_024097.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.56624874811203,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.001683117380942,
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-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
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-      "segment_id": "seg0002",
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-      "utterance_id": "614-6500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.575703294922036,
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-      "utterance_id": "614-6500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 91736
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.326102760872068,
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-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 59527
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.486104550427292,
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-      "utterance_id": "614-12876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/614/laugh/0080.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "614"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024100.json b/conversations/conv_024100.json
deleted file mode 100644
index c3626a4ca9dc5867dfe4b0fe497950a82c4245ed..0000000000000000000000000000000000000000
--- a/conversations/conv_024100.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.414010972307295,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1403-138552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86040.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86039.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1403-138552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 171319
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2758-86040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86040.flac |",
-      "real_speaker_id": "2758",
-      "position_frames": 82201
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-    {
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-    {
-      "event_class": "cough",
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-      "duration": 1.139817131483101,
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-      "speaker_id": "2758"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024101.json b/conversations/conv_024101.json
deleted file mode 100644
index 6139fdbbe845455c0956a443c295d11887880ed8..0000000000000000000000000000000000000000
--- a/conversations/conv_024101.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.523728086794483,
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-      "duration_frames": 88379,
-      "overlap": false,
-      "utterance_id": "1664-137600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "1664-137600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 88379
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-    {
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-      "start_time": 10.669059794709174,
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-      "utterance_id": "2496-156087",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156087.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.605709706713274,
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-      "real_speaker_id": "1664",
-      "position_frames": 144957
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-129808.flac |",
-      "real_speaker_id": "1283",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 30.40167562845497,
-      "speaker_id": "1283"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024111.json b/conversations/conv_024111.json
deleted file mode 100644
index 6e9f57b4090df221580f6a42712911b77a7dbb95..0000000000000000000000000000000000000000
--- a/conversations/conv_024111.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.674048859442954,
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-      "start_frame": 0,
-      "duration_frames": 90784,
-      "overlap": false,
-      "utterance_id": "1460-138290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_024116.json b/conversations/conv_024116.json
deleted file mode 100644
index 746de20f12fe997854aec235eced595f5ca251cc..0000000000000000000000000000000000000000
--- a/conversations/conv_024116.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8169-118202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118202.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.8326406351399855,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66465.flac |",
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-      "position_frames": 0
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-      "utterance_id": "8169-118200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.125008712143604,
-      "end_time": 22.831909878088396,
-      "duration": 6.706901165944791,
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-      "utterance_id": "6518-66465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66465.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 87720
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.364176575206674,
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-      "utterance_id": "8169-118202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118202.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 72942
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.425154948229995,
-      "end_time": 32.0,
-      "duration": 3.574845051770005,
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-      "duration_frames": 57197,
-      "overlap": false,
-      "utterance_id": "6590-64283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64283.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024120.json b/conversations/conv_024120.json
deleted file mode 100644
index 9df769fb1a44c0995d95274ff9bef3f3103b30f1..0000000000000000000000000000000000000000
--- a/conversations/conv_024120.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "5993-36961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-36961.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.152822896497934,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-61317.flac |",
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-      "position_frames": 0
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-      "utterance_id": "5993-36961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-36961.flac |",
-      "real_speaker_id": "5993",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-36961.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 139543
-    },
-    {
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-      "overlap": false,
-      "utterance_id": "6918-61317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-61317.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 72165
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "real_speaker_id": "5993",
-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
-      "duration": 0.8380952380952381,
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-      "event_class": "Cat",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.22,
-      "start_time": 30.78,
-      "speaker_id": "6918"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5993/laugh/0045.wav",
-      "duration": 1.0031225889508,
-      "start_time": 30.108967980879573,
-      "speaker_id": "5993"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5993/cough/0083.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "5993"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024136.json b/conversations/conv_024136.json
deleted file mode 100644
index faf3f7cfe1843d5a08095d01d014e9fc31cf7e4c..0000000000000000000000000000000000000000
--- a/conversations/conv_024136.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6407-66985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66985.flac |",
-      "real_speaker_id": "6407",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "8296",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6836-61803",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61803.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.645689355402794,
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-      "utterance_id": "6407-66983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66983.flac |",
-      "real_speaker_id": "6407",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.431386057732258,
-      "end_time": 28.837852699081374,
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-      "duration_frames": 86503,
-      "overlap": false,
-      "utterance_id": "8296-266250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-266250.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 83385
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.950077004262816,
-      "end_time": 32.0,
-      "duration": 2.049922995737184,
-      "start_frame": 479201,
-      "duration_frames": 32798,
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-      "utterance_id": "6407-66983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66983.flac |",
-      "real_speaker_id": "6407",
-      "position_frames": 104268
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8296/laugh/0093.wav",
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-      "start_time": 22.39395912833964,
-      "speaker_id": "8296"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024141.json b/conversations/conv_024141.json
deleted file mode 100644
index a5fa6f5a4222611e3227bdc88da633f878c25cf9..0000000000000000000000000000000000000000
--- a/conversations/conv_024141.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
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-      "position_frames": 69206
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-  ],
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_024156.json b/conversations/conv_024156.json
deleted file mode 100644
index 2972a34a7fa7d3849c11225d0abb95e7d110aa26..0000000000000000000000000000000000000000
--- a/conversations/conv_024156.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "real_speaker_id": "7644",
-      "position_frames": 0
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-      "start_time": 5.000866811077811,
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-      "real_speaker_id": "1714",
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-      "real_speaker_id": "6269",
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-    {
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-      "position_frames": 150519
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024157.json b/conversations/conv_024157.json
deleted file mode 100644
index 84b4de07e6ca755aa8b9fcec1026622684d49c42..0000000000000000000000000000000000000000
--- a/conversations/conv_024157.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "14",
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-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.311025426423203,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 70689
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024161.json b/conversations/conv_024161.json
deleted file mode 100644
index c49cddbbd8461b3fed9deb9a9804c818635a629a..0000000000000000000000000000000000000000
--- a/conversations/conv_024161.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.654643073731805,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5101-67853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5101-67853.flac |",
-      "real_speaker_id": "5101",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134562.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.117708057051932,
-      "end_time": 14.860758262397159,
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-      "duration_frames": 91888,
-      "overlap": false,
-      "utterance_id": "5101-40462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5101-40462.flac |",
-      "real_speaker_id": "5101",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.143715651442923,
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-      "utterance_id": "5772-43315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43315.flac |",
-      "real_speaker_id": "5772",
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-    {
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5101-40462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5101-40462.flac |",
-      "real_speaker_id": "5101",
-      "position_frames": 91888
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "cough",
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-      "duration": 1.0,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024177.json b/conversations/conv_024177.json
deleted file mode 100644
index 80029b12a7b88389916d47dd93d8d7dd152add76..0000000000000000000000000000000000000000
--- a/conversations/conv_024177.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.474397983606709,
-      "duration": 5.474397983606709,
-      "start_frame": 0,
-      "duration_frames": 87590,
-      "overlap": false,
-      "utterance_id": "543-133211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133211.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.033772310058975,
-      "end_time": 12.66213057393875,
-      "duration": 6.628358263879775,
-      "start_frame": 96540,
-      "duration_frames": 106053,
-      "overlap": false,
-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.038563401517134,
-      "end_time": 18.48707156574339,
-      "duration": 5.448508164226253,
-      "start_frame": 208617,
-      "duration_frames": 87176,
-      "overlap": false,
-      "utterance_id": "543-133212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133212.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.24211561173307,
-      "end_time": 22.384940003316107,
-      "duration": 3.142824391583038,
-      "start_frame": 307873,
-      "duration_frames": 50285,
-      "overlap": false,
-      "utterance_id": "6685-70976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70976.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.209095181356478,
-      "end_time": 27.972264826592035,
-      "duration": 4.763169645235557,
-      "start_frame": 371345,
-      "duration_frames": 76210,
-      "overlap": false,
-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 106053
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.96021817392259,
-      "end_time": 32.0,
-      "duration": 3.0397818260774088,
-      "start_frame": 463363,
-      "duration_frames": 48636,
-      "overlap": false,
-      "utterance_id": "543-137106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-137106.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
-      "duration": 18.160769643622768,
-      "start_time": 10.439545779022449
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
-      "duration": 4.131691417652879,
-      "start_time": 27.55697957110103
-    },
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
-      "duration": 4.7747582561123085,
-      "start_time": 23.5051585246622
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/543/laugh/0052.wav",
-      "duration": 1.34,
-      "start_time": 15.84239413990431,
-      "speaker_id": "543"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6685/laugh/0063.wav",
-      "duration": 1.52,
-      "start_time": 22.42732187237506,
-      "speaker_id": "6685"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024182.json b/conversations/conv_024182.json
deleted file mode 100644
index 746f83be11044ae55580c72174607f427b9e6283..0000000000000000000000000000000000000000
--- a/conversations/conv_024182.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.378402301895404,
-      "duration": 4.378402301895404,
-      "start_frame": 0,
-      "duration_frames": 70054,
-      "overlap": false,
-      "utterance_id": "667-158816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-158816.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.186690564247444,
-      "end_time": 7.859366061318247,
-      "duration": 3.672675497070803,
-      "start_frame": 66987,
-      "duration_frames": 58762,
-      "overlap": true,
-      "utterance_id": "7134-67200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67200.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.840205154600168,
-      "end_time": 13.66506477186284,
-      "duration": 4.824859617262671,
-      "start_frame": 141443,
-      "duration_frames": 77197,
-      "overlap": false,
-      "utterance_id": "667-105002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.182901776538833,
-      "end_time": 17.357884797947154,
-      "duration": 3.174983021408321,
-      "start_frame": 226926,
-      "duration_frames": 50799,
-      "overlap": false,
-      "utterance_id": "7134-67233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.01913253383164,
-      "end_time": 23.981056303182566,
-      "duration": 5.961923769350925,
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-      "duration_frames": 95390,
-      "overlap": false,
-      "utterance_id": "667-105002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 77197
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.204821135582826,
-      "end_time": 28.098679499548247,
-      "duration": 3.8938583639654207,
-      "start_frame": 387277,
-      "duration_frames": 62301,
-      "overlap": false,
-      "utterance_id": "7134-67233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 50799
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.368234623576345,
-      "end_time": 32.0,
-      "duration": 2.6317653764236546,
-      "start_frame": 469891,
-      "duration_frames": 42108,
-      "overlap": false,
-      "utterance_id": "667-107247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
-      "start_time": 7.592818283527974
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_16.wav",
-      "duration": 0.09666666666666666,
-      "start_time": 22.144188766941536
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_8.wav",
-      "duration": 0.9920861678004536,
-      "start_time": 0.048823121244544083
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7134/cough/0030.wav",
-      "duration": 0.9635651460625927,
-      "start_time": 8.03607152446451,
-      "speaker_id": "7134"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/667/cough/0042.wav",
-      "duration": 1.12,
-      "start_time": 7.705336069466347,
-      "speaker_id": "667"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7134/laugh/0056.wav",
-      "duration": 0.88,
-      "start_time": 17.45433750454496,
-      "speaker_id": "7134"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7134/laugh/0099.wav",
-      "duration": 0.600402504516385,
-      "start_time": 28.230772662403833,
-      "speaker_id": "7134"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7134/cough/0083.wav",
-      "duration": 0.8535831789455262,
-      "start_time": 28.121629308243378,
-      "speaker_id": "7134"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024185.json b/conversations/conv_024185.json
deleted file mode 100644
index 9aa5d3ae7af13f43ffa3e2d866fc8392323e3c53..0000000000000000000000000000000000000000
--- a/conversations/conv_024185.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.01299811643401,
-      "duration": 5.01299811643401,
-      "start_frame": 0,
-      "duration_frames": 80207,
-      "overlap": false,
-      "utterance_id": "1028-133393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133393.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.8172057410723585,
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-      "start_frame": 77075,
-      "duration_frames": 76295,
-      "overlap": true,
-      "utterance_id": "2067-143536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.913898171526895,
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-      "duration": 6.741147861190312,
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-      "overlap": false,
-      "utterance_id": "6082-56174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.467476480605768,
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-      "utterance_id": "1028-133393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133393.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 80207
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.749303544175813,
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-      "duration": 6.11836915320178,
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-      "overlap": false,
-      "utterance_id": "2067-143535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.339797241642657,
-      "end_time": 32.0,
-      "duration": 1.660202758357343,
-      "start_frame": 485436,
-      "duration_frames": 26563,
-      "overlap": false,
-      "utterance_id": "6082-56174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 107858
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1028/laugh/0067.wav",
-      "duration": 1.2236114424063964,
-      "start_time": 0,
-      "speaker_id": "1028"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6082/laugh/0087.wav",
-      "duration": 0.9288482763568389,
-      "start_time": 9.877980353992383,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1028/laugh/0063.wav",
-      "duration": 1.2,
-      "start_time": 21.21415400422033,
-      "speaker_id": "1028"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2067/cough/0083.wav",
-      "duration": 0.88,
-      "start_time": 25.21964131926215,
-      "speaker_id": "2067"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024193.json b/conversations/conv_024193.json
deleted file mode 100644
index 46b8b227b72c7881e570429a27fcd53acaa1c735..0000000000000000000000000000000000000000
--- a/conversations/conv_024193.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.094261827912575,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2518-154825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154825.flac |",
-      "real_speaker_id": "2518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.418686201177753,
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-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "472-129983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-129983.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "2518-154825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154825.flac |",
-      "real_speaker_id": "2518",
-      "position_frames": 65508
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154826.flac |",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/472/laugh/0022.wav",
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-      "speaker_id": "472"
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-      "event_class": "cough",
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-      "duration": 0.84,
-      "start_time": 28.898703138842592,
-      "speaker_id": "472"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024194.json b/conversations/conv_024194.json
deleted file mode 100644
index c5303dd27df5a6218c5366fa88e42308144a41e8..0000000000000000000000000000000000000000
--- a/conversations/conv_024194.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143485.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
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-      "speaker_id": 0,
-      "start_time": 9.510745902986109,
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-      "utterance_id": "1769-143484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143484.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.223101095688035,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
-      "position_frames": 79600
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.635579470358174,
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-      "overlap": false,
-      "utterance_id": "1769-143484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143484.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 49151
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
-      "position_frames": 189484
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024198.json b/conversations/conv_024198.json
deleted file mode 100644
index e1c53ce2efc19513c347cd3c27bb56419b6d8686..0000000000000000000000000000000000000000
--- a/conversations/conv_024198.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14904.flac |",
-      "real_speaker_id": "4381",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14904.flac |",
-      "real_speaker_id": "4381",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-28247.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 94137
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-      "utterance_id": "964-124560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/964-124560.flac |",
-      "real_speaker_id": "964",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024202.json b/conversations/conv_024202.json
deleted file mode 100644
index 762ccb9851d5a800edf4f275132f909ff8e1adb8..0000000000000000000000000000000000000000
--- a/conversations/conv_024202.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8465-246940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246940.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 0
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-      "real_speaker_id": "5975",
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-      "real_speaker_id": "5975",
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-      "position_frames": 71648
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141644.flac |",
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-      "start_time": 30.64,
-      "speaker_id": "1535"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024205.json b/conversations/conv_024205.json
deleted file mode 100644
index 2747e1754e53ad87c0b39cd22998657cf5bac101..0000000000000000000000000000000000000000
--- a/conversations/conv_024205.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.69379511032531,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
-      "real_speaker_id": "497",
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-    {
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-      "utterance_id": "4535-279852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279852.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
-      "duration": 0.7219727891156462,
-      "start_time": 20.010209280915998
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_024209.json b/conversations/conv_024209.json
deleted file mode 100644
index 6c72694cf7b7ab246c84de776d324eec1c8ce602..0000000000000000000000000000000000000000
--- a/conversations/conv_024209.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.85976487737216,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.417752593794668,
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-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.569704912436929,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-26685.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
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-      "duration_frames": 100309,
-      "overlap": false,
-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 102684
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.914595399220453,
-      "end_time": 27.58578064219835,
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-      "overlap": false,
-      "utterance_id": "5290-26685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-26685.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 87249
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.89145092997022,
-      "end_time": 31.85976487737216,
-      "duration": 3.968313947401943,
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-      "overlap": false,
-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 202993
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 8.417086018328348
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
-      "duration": 0.2008390022675737,
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-    {
-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 30.6530165509527,
-      "speaker_id": "782"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024213.json b/conversations/conv_024213.json
deleted file mode 100644
index eb135a50e51b245e812424324ca7b30551dd210e..0000000000000000000000000000000000000000
--- a/conversations/conv_024213.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.29411422424109,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3244-10692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10692.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6627-67844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67844.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 76425
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.450407984702906,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-174926.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.771016113650177,
-      "end_time": 31.29411422424109,
-      "duration": 4.523098110590912,
-      "start_frame": 428336,
-      "duration_frames": 72369,
-      "overlap": true,
-      "utterance_id": "3244-174926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-174926.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 81735
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024214.json b/conversations/conv_024214.json
deleted file mode 100644
index 73410f2750b6fc5ed82bf274cb546d1d9d4245f4..0000000000000000000000000000000000000000
--- a/conversations/conv_024214.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "951-122301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121916.flac |",
-      "real_speaker_id": "39",
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-      "real_speaker_id": "6064",
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-    {
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-      "real_speaker_id": "951",
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-    {
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-      "real_speaker_id": "39",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "951-122301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
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-  ],
-  "background_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024225.json b/conversations/conv_024225.json
deleted file mode 100644
index 4b3ce1a9dfa814f762f8e6ed50c5c493b3fe06f4..0000000000000000000000000000000000000000
--- a/conversations/conv_024225.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.655655448303705,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1634-141571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1634-141571.flac |",
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-    {
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-    {
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-      "utterance_id": "1914-121446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121446.flac |",
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-  "foreground_events": [
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-      "event_class": "cough",
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-      "speaker_id": "7635"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024228.json b/conversations/conv_024228.json
deleted file mode 100644
index 245fd9a31aa6f01cb576bc5c8ad781f8d679c0eb..0000000000000000000000000000000000000000
--- a/conversations/conv_024228.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7959-109176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109176.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168204.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
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-      "utterance_id": "7561-258992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.16651151732941,
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-      "duration_frames": 80019,
-      "overlap": true,
-      "utterance_id": "7959-109185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109185.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.420226533851874,
-      "end_time": 31.13898794663598,
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-      "overlap": true,
-      "utterance_id": "7959-109185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109185.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 80019
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.624120695545656,
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-      "duration": 0.3758793044543438,
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-      "duration_frames": 6014,
-      "overlap": false,
-      "utterance_id": "3224-168204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168204.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 93821
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7959/laugh/0005.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024229.json b/conversations/conv_024229.json
deleted file mode 100644
index c9f8ca89c60d230865ae18ad12f8580ef932c276..0000000000000000000000000000000000000000
--- a/conversations/conv_024229.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.580097344845182,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3314-159392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-159392.flac |",
-      "real_speaker_id": "3314",
-      "position_frames": 0
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-      "start_time": 3.8809033486269997,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-138053.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
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-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 74983
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3314-135987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-135987.flac |",
-      "real_speaker_id": "3314",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8432-54083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-54083.flac |",
-      "real_speaker_id": "8432",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024233.json b/conversations/conv_024233.json
deleted file mode 100644
index 684eb60d75dab594ea3466977551103903d8c90b..0000000000000000000000000000000000000000
--- a/conversations/conv_024233.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "479-107479",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-107479.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-126480.flac |",
-      "real_speaker_id": "479",
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-      "utterance_id": "1845-147962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-147962.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.47116406090067,
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-      "utterance_id": "479-126480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-126480.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 64732
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024243.json b/conversations/conv_024243.json
deleted file mode 100644
index 5595aee1edc78da305e8a6ec9cd371c4ac27a840..0000000000000000000000000000000000000000
--- a/conversations/conv_024243.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "8625",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_024244.json b/conversations/conv_024244.json
deleted file mode 100644
index b80c39fcf31f685b77f6b3b9d7b7f4826d5f19f4..0000000000000000000000000000000000000000
--- a/conversations/conv_024244.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-64577.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "7816-108621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108621.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.562593436450456,
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-      "utterance_id": "7816-108620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108620.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 59698
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 1.8928360310329388,
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-      "utterance_id": "7376-64577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-64577.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 86637
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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\ No newline at end of file
diff --git a/conversations/conv_024248.json b/conversations/conv_024248.json
deleted file mode 100644
index bb4789ed3c029aa3d7a872f3e92f732a7a774c91..0000000000000000000000000000000000000000
--- a/conversations/conv_024248.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5733",
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-      "real_speaker_id": "2577",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55099.flac |",
-      "real_speaker_id": "5733",
-      "position_frames": 76566
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-    {
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-      "duration": 1.44,
-      "start_time": 29.616842175340317,
-      "speaker_id": "2577"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024252.json b/conversations/conv_024252.json
deleted file mode 100644
index 544c084527a5a61078f3b54f2a438bcf1c75b1f0..0000000000000000000000000000000000000000
--- a/conversations/conv_024252.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7150-118730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-118730.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122441.flac |",
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-      "real_speaker_id": "4415",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-118730.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 153949
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_5.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024255.json b/conversations/conv_024255.json
deleted file mode 100644
index 8da8ed416d16305c133399bb5424ebd683983eba..0000000000000000000000000000000000000000
--- a/conversations/conv_024255.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "3630-24758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-24758.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-24758.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_024264.json b/conversations/conv_024264.json
deleted file mode 100644
index e737b0c6bfe6f96966fbac52f1d62d5da0d04e66..0000000000000000000000000000000000000000
--- a/conversations/conv_024264.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7780-274562.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
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-      "position_frames": 79645
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7780-274562.flac |",
-      "real_speaker_id": "7780",
-      "position_frames": 85974
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.34936416541211,
-      "end_time": 32.0,
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-      "utterance_id": "3979-10702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10702.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 78731
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_024268.json b/conversations/conv_024268.json
deleted file mode 100644
index b5ac96d82f7767fb0cfdbe0db8605936f3af171e..0000000000000000000000000000000000000000
--- a/conversations/conv_024268.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
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-      "real_speaker_id": "5781",
-      "position_frames": 111023
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-}
\ No newline at end of file
diff --git a/conversations/conv_024272.json b/conversations/conv_024272.json
deleted file mode 100644
index ba7bcb4995313640434e9c71cac9eba9557f2236..0000000000000000000000000000000000000000
--- a/conversations/conv_024272.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.72053499661122,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "6568-69911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-69911.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 5.240700491819512,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274112.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274112.flac |",
-      "real_speaker_id": "8063",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6568",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 71654
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-      "segment_id": "seg0006",
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-  "background_events": [
-    {
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-    {
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6568/laugh/0077.wav",
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-      "speaker_id": "6568"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024287.json b/conversations/conv_024287.json
deleted file mode 100644
index f6f363f40bb7aff334c16b92e8ed4a012963bc49..0000000000000000000000000000000000000000
--- a/conversations/conv_024287.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "3857"
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-      "speaker_id": "3857"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024290.json b/conversations/conv_024290.json
deleted file mode 100644
index 9048bc7323ca8f556c2112470989934d16721f7f..0000000000000000000000000000000000000000
--- a/conversations/conv_024290.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.05521059649251,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1844-144486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.544543006731775,
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-      "utterance_id": "1363-135842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 0
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-      "utterance_id": "6818-76332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-145713.flac |",
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-      "utterance_id": "1363-139304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-139304.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1844-144486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 94465
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024291.json b/conversations/conv_024291.json
deleted file mode 100644
index 636b09da579c36726bfd7f7a0cfe7304a8a87b01..0000000000000000000000000000000000000000
--- a/conversations/conv_024291.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205002.flac |",
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-      "real_speaker_id": "7762",
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-      "utterance_id": "3843-176663",
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-      "real_speaker_id": "3843",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.58,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "7762"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024301.json b/conversations/conv_024301.json
deleted file mode 100644
index 5a3b33132dcc06a43b920f0d18e9834076d7f777..0000000000000000000000000000000000000000
--- a/conversations/conv_024301.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1018-135221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1018-135221.flac |",
-      "real_speaker_id": "1018",
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-    {
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-      "utterance_id": "6798-77740",
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-      "real_speaker_id": "6798",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_024306.json b/conversations/conv_024306.json
deleted file mode 100644
index 9e60ecfb7ac09c39992d58d99a4837ee3c8b512d..0000000000000000000000000000000000000000
--- a/conversations/conv_024306.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-  "segments": [
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-      "utterance_id": "7155-249840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-249840.flac |",
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-      "utterance_id": "7155-10644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-10644.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
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-      "segment_id": "seg0006",
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-      "start_time": 29.795938002432667,
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "7155"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024310.json b/conversations/conv_024310.json
deleted file mode 100644
index 79d299caa45086463953754d2ca727d0e9305217..0000000000000000000000000000000000000000
--- a/conversations/conv_024310.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "3307",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1460",
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-  "background_events": [
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-      "speaker_id": "1460"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024317.json b/conversations/conv_024317.json
deleted file mode 100644
index 86d0662030bf1dd75ff096c90a1328ba5bab8619..0000000000000000000000000000000000000000
--- a/conversations/conv_024317.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 0
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-      "real_speaker_id": "4629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024321.json b/conversations/conv_024321.json
deleted file mode 100644
index d2057793acd5837e294a7ae0f54c3deb8ad3d497..0000000000000000000000000000000000000000
--- a/conversations/conv_024321.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.06477975938361,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153302.flac |",
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-      "real_speaker_id": "147",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-10094.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/147-125737.flac |",
-      "real_speaker_id": "147",
-      "position_frames": 70718
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153300.flac |",
-      "real_speaker_id": "3928",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "323-126408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/147/laugh/0057.wav",
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-      "speaker_id": "3928"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024337.json b/conversations/conv_024337.json
deleted file mode 100644
index a819233c757f75c44bf116102ecb4ddbecc5ba44..0000000000000000000000000000000000000000
--- a/conversations/conv_024337.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.493652422706713,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.969076028580571,
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-      "start_frame": 0,
-      "duration_frames": 111505,
-      "overlap": false,
-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.454826232801505,
-      "end_time": 10.68598022780207,
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-      "utterance_id": "6159-39642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6159-39642.flac |",
-      "real_speaker_id": "6159",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.95663385436055,
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-      "utterance_id": "7198-80652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
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-      "start_time": 17.10323665743674,
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-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 111505
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.67745526659474,
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-      "overlap": false,
-      "utterance_id": "7198-76169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-76169.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.57712989187287,
-      "end_time": 31.26528078235112,
-      "duration": 3.688150890478252,
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-      "duration_frames": 59010,
-      "overlap": false,
-      "utterance_id": "6159-39642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6159-39642.flac |",
-      "real_speaker_id": "6159",
-      "position_frames": 51698
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.111941393712268,
-      "end_time": 31.493652422706713,
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-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
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-      "position_frames": 177043
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6159/laugh/0006.wav",
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-      "speaker_id": "6159"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024340.json b/conversations/conv_024340.json
deleted file mode 100644
index 6ce9f20a368fd6f975cdc4b18ef3e11e1f3be459..0000000000000000000000000000000000000000
--- a/conversations/conv_024340.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.511552936748381,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.789163025582656,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-64719.flac |",
-      "real_speaker_id": "4936",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 56184
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "899-126232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126232.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.655538320779527,
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-      "duration": 5.232523420575174,
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-      "duration_frames": 83720,
-      "overlap": false,
-      "utterance_id": "4936-65528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-65528.flac |",
-      "real_speaker_id": "4936",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.865234809394934,
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-      "duration_frames": 81557,
-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 114937
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.46466819291728,
-      "end_time": 32.0,
-      "duration": 1.53533180708272,
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-      "utterance_id": "4936-65528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-65528.flac |",
-      "real_speaker_id": "4936",
-      "position_frames": 83720
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
-      "duration": 2.188775510204082,
-      "start_time": 21.318790095603045
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3559/laugh/0043.wav",
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-      "start_time": 3.5818697330101377,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4936/laugh/0048.wav",
-      "duration": 0.7783562755048734,
-      "start_time": 22.34164340482564,
-      "speaker_id": "4936"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024347.json b/conversations/conv_024347.json
deleted file mode 100644
index bf4891fd4e5e484693fbcef32c5c78527cccfcde..0000000000000000000000000000000000000000
--- a/conversations/conv_024347.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.4156343629883015,
-      "duration": 3.4156343629883015,
-      "start_frame": 0,
-      "duration_frames": 54650,
-      "overlap": false,
-      "utterance_id": "4699-12472",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
-      "real_speaker_id": "4699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9196195126994047,
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-      "overlap": false,
-      "utterance_id": "7640-104647",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-104647.flac |",
-      "real_speaker_id": "7640",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
-      "real_speaker_id": "4699",
-      "position_frames": 54650
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.180274618458178,
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-      "utterance_id": "296-129659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-129659.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-104647.flac |",
-      "real_speaker_id": "7640",
-      "position_frames": 111477
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.781229855338417,
-      "end_time": 32.0,
-      "duration": 1.2187701446615833,
-      "start_frame": 492499,
-      "duration_frames": 19500,
-      "overlap": false,
-      "utterance_id": "296-141721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7640/cough/0085.wav",
-      "duration": 0.7081350970046446,
-      "start_time": 11.053455638447147,
-      "speaker_id": "7640"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4699/laugh/0034.wav",
-      "duration": 1.0403310076402743,
-      "start_time": 16.960586891095105,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/296/laugh/0104.wav",
-      "duration": 1.4380323229536587,
-      "start_time": 29.32130893668248,
-      "speaker_id": "296"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024351.json b/conversations/conv_024351.json
deleted file mode 100644
index 578f76414e894e653e21832f8b2c8a3aaa8e55d4..0000000000000000000000000000000000000000
--- a/conversations/conv_024351.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.773376244204176,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.127771855885631,
-      "duration": 5.127771855885631,
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-      "overlap": false,
-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.904315445598241,
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
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\ No newline at end of file
diff --git a/conversations/conv_024356.json b/conversations/conv_024356.json
deleted file mode 100644
index 64c21ca0d380613dcaf2efa29c4b1f414cd85767..0000000000000000000000000000000000000000
--- a/conversations/conv_024356.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4821",
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-      "real_speaker_id": "6538",
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\ No newline at end of file
diff --git a/conversations/conv_024360.json b/conversations/conv_024360.json
deleted file mode 100644
index fa790a21478e14f8fc2b8ed31743e4f030b77eb9..0000000000000000000000000000000000000000
--- a/conversations/conv_024360.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8392-285237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
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\ No newline at end of file
diff --git a/conversations/conv_024361.json b/conversations/conv_024361.json
deleted file mode 100644
index 248c75ad69dc62950cb447be6689da6c5a3efc64..0000000000000000000000000000000000000000
--- a/conversations/conv_024361.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5506-69895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69895.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2568",
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-      "position_frames": 129637
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_024376.json b/conversations/conv_024376.json
deleted file mode 100644
index b4af216db8d88f52098272cc8485edda86632eb5..0000000000000000000000000000000000000000
--- a/conversations/conv_024376.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.625789461304045,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.796989585924792,
-      "duration": 5.796989585924792,
-      "start_frame": 0,
-      "duration_frames": 92751,
-      "overlap": false,
-      "utterance_id": "3894-6553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6553.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.327032363260084,
-      "end_time": 11.343986804468804,
-      "duration": 5.0169544412087195,
-      "start_frame": 101232,
-      "duration_frames": 80271,
-      "overlap": false,
-      "utterance_id": "369-125882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.695487007877642,
-      "end_time": 16.198400259322824,
-      "duration": 4.502913251445184,
-      "start_frame": 187127,
-      "duration_frames": 72046,
-      "overlap": false,
-      "utterance_id": "3894-6553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6553.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 92751
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.404589353595384,
-      "end_time": 19.9141162367629,
-      "duration": 3.509526883167519,
-      "start_frame": 262473,
-      "duration_frames": 56152,
-      "overlap": false,
-      "utterance_id": "369-125882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 80271
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.350706073726393,
-      "end_time": 25.57015601630487,
-      "duration": 5.219449942578479,
-      "start_frame": 325611,
-      "duration_frames": 83511,
-      "overlap": false,
-      "utterance_id": "1492-55449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-55449.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.399665348715544,
-      "end_time": 31.625789461304045,
-      "duration": 5.2261241125885025,
-      "start_frame": 422394,
-      "duration_frames": 83617,
-      "overlap": false,
-      "utterance_id": "369-125883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125883.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
-      "duration": 2.145578231292517,
-      "start_time": 26.776022139286603
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
-      "duration": 0.6760544217687074,
-      "start_time": 20.481532247685827
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3894/cough/0079.wav",
-      "duration": 0.41327255658485296,
-      "start_time": 0,
-      "speaker_id": "3894"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/369/cough/0008.wav",
-      "duration": 0.40190952090969473,
-      "start_time": 15.974059964867195,
-      "speaker_id": "369"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/369/cough/0073.wav",
-      "duration": 0.5579914996118289,
-      "start_time": 31.44200850038817,
-      "speaker_id": "369"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024382.json b/conversations/conv_024382.json
deleted file mode 100644
index 580ad4179db9556fbd8c7deb4f65dabd4520e7ba..0000000000000000000000000000000000000000
--- a/conversations/conv_024382.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.811365914181163,
-      "duration": 5.811365914181163,
-      "start_frame": 0,
-      "duration_frames": 92981,
-      "overlap": false,
-      "utterance_id": "4492-8907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8907.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.108112799766459,
-      "end_time": 12.140556437019718,
-      "duration": 6.03244363725326,
-      "start_frame": 97729,
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-      "overlap": false,
-      "utterance_id": "8242-279771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279771.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.993863848878672,
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-      "start_frame": 191901,
-      "duration_frames": 66411,
-      "overlap": true,
-      "utterance_id": "6927-86045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6927-86045.flac |",
-      "real_speaker_id": "6927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.588690580940465,
-      "end_time": 22.042639057134814,
-      "duration": 4.453948476194349,
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-      "overlap": false,
-      "utterance_id": "4492-8904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.097036303985657,
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-      "utterance_id": "6927-86045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6927-86045.flac |",
-      "real_speaker_id": "6927",
-      "position_frames": 66411
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.597165342469573,
-      "end_time": 32.0,
-      "duration": 3.402834657530427,
-      "start_frame": 457554,
-      "duration_frames": 54445,
-      "overlap": false,
-      "utterance_id": "4492-8904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 71263
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
-      "duration": 3.728863634619939,
-      "start_time": 15.722567866606546
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_024383.json b/conversations/conv_024383.json
deleted file mode 100644
index dd701e14473b6ab992f3a5646e20d513e46ccaeb..0000000000000000000000000000000000000000
--- a/conversations/conv_024383.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.821110680771287,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8607029963275505,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.291285519993007,
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-      "duration": 5.062309750933146,
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-      "duration_frames": 80996,
-      "overlap": false,
-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 61771
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.614210861172523,
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-      "overlap": false,
-      "utterance_id": "56-1730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1730.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.454629996738454,
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-      "duration_frames": 63777,
-      "overlap": false,
-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 142767
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1730.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 95612
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5248-34500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34500.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.883294963794237,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/56/laugh/0038.wav",
-      "duration": 1.4083086240603226,
-      "start_time": 19.02899862923343,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024395.json b/conversations/conv_024395.json
deleted file mode 100644
index b4220cfff5502632d79bae998c865c1eda913371..0000000000000000000000000000000000000000
--- a/conversations/conv_024395.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.617951692542387,
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-      "start_frame": 0,
-      "duration_frames": 105887,
-      "overlap": false,
-      "utterance_id": "6099-67860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-67860.flac |",
-      "real_speaker_id": "6099",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.457404551682678,
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-      "utterance_id": "5296-26680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "1355-39947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.481770288255811,
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-      "utterance_id": "6099-67860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-67860.flac |",
-      "real_speaker_id": "6099",
-      "position_frames": 105887
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.872783471269493,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 62209
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 88831,
-      "overlap": false,
-      "utterance_id": "6099-67860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-67860.flac |",
-      "real_speaker_id": "6099",
-      "position_frames": 199668
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-  "paralinguistic_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_024399.json b/conversations/conv_024399.json
deleted file mode 100644
index ebdfdb06dc29df010394539363f66d0846bdcd01..0000000000000000000000000000000000000000
--- a/conversations/conv_024399.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.834568625954525,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7558-89894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7558-89894.flac |",
-      "real_speaker_id": "7558",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-36587.flac |",
-      "real_speaker_id": "5325",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "157-121899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-121899.flac |",
-      "real_speaker_id": "157",
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-    {
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 66912
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024403.json b/conversations/conv_024403.json
deleted file mode 100644
index 8cb7fde7509e83599f852ee6fb0b31f15604725c..0000000000000000000000000000000000000000
--- a/conversations/conv_024403.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "1723",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
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-      "real_speaker_id": "1723",
-      "position_frames": 137162
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_024404.json b/conversations/conv_024404.json
deleted file mode 100644
index 8e4680bbc260429d8dd90f435219cac931a1aae7..0000000000000000000000000000000000000000
--- a/conversations/conv_024404.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "start_time": 0,
-      "speaker_id": "4267"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/782/laugh/0002.wav",
-      "duration": 1.12,
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-}
\ No newline at end of file
diff --git a/conversations/conv_024414.json b/conversations/conv_024414.json
deleted file mode 100644
index 58944a5f61c7bc889b901ac7ff34605aa3b8ac06..0000000000000000000000000000000000000000
--- a/conversations/conv_024414.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.265040765254348,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61781.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
-    },
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 66077
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 150387
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024415.json b/conversations/conv_024415.json
deleted file mode 100644
index 5908b698df3a33ab7c652bfcf9d8fc920190f762..0000000000000000000000000000000000000000
--- a/conversations/conv_024415.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.190078943989954,
-      "duration": 5.190078943989954,
-      "start_frame": 0,
-      "duration_frames": 83041,
-      "overlap": false,
-      "utterance_id": "6690-73073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73073.flac |",
-      "real_speaker_id": "6690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.670444328385122,
-      "end_time": 9.52708573815639,
-      "duration": 3.856641409771269,
-      "start_frame": 90727,
-      "duration_frames": 61706,
-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.15199207924709,
-      "end_time": 15.594884298805837,
-      "duration": 5.442892219558746,
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-      "duration_frames": 87086,
-      "overlap": false,
-      "utterance_id": "6690-73073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73073.flac |",
-      "real_speaker_id": "6690",
-      "position_frames": 83041
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.94104735062652,
-      "end_time": 22.15118191427392,
-      "duration": 6.210134563647402,
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-      "duration_frames": 99362,
-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 61706
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.883488234671695,
-      "end_time": 26.858404324649786,
-      "duration": 3.9749160899780898,
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-      "overlap": false,
-      "utterance_id": "6690-73075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73075.flac |",
-      "real_speaker_id": "6690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.66632859627824,
-      "end_time": 32.0,
-      "duration": 4.333671403721759,
-      "start_frame": 442661,
-      "duration_frames": 69338,
-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 161068
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 18.844149924667708,
-      "start_time": 10.868408481907766
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 1.592274523204889,
-      "start_time": 17.202536910545465
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6690/laugh/0001.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "6690"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3540/laugh/0009.wav",
-      "duration": 0.92,
-      "start_time": 9.581714249648122,
-      "speaker_id": "3540"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6690/laugh/0051.wav",
-      "duration": 0.5081960853862673,
-      "start_time": 15.639793893912607,
-      "speaker_id": "6690"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3540/laugh/0030.wav",
-      "duration": 1.0,
-      "start_time": 18.480072806728046,
-      "speaker_id": "3540"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6690/laugh/0052.wav",
-      "duration": 1.3179346505758276,
-      "start_time": 27.0074921810085,
-      "speaker_id": "6690"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024419.json b/conversations/conv_024419.json
deleted file mode 100644
index 814494db4a8bfd60fcd62a7ba4f44818e2dc4b9f..0000000000000000000000000000000000000000
--- a/conversations/conv_024419.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.7202305646741,
-      "duration": 4.7202305646741,
-      "start_frame": 0,
-      "duration_frames": 75523,
-      "overlap": false,
-      "utterance_id": "3138-173544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.1088831657506155,
-      "end_time": 9.765938054474024,
-      "duration": 4.657054888723408,
-      "start_frame": 81742,
-      "duration_frames": 74512,
-      "overlap": false,
-      "utterance_id": "7437-96157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96157.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.13940854470351,
-      "end_time": 15.120368744067017,
-      "duration": 4.980960199363507,
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-      "duration_frames": 79695,
-      "overlap": false,
-      "utterance_id": "3138-173544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 75523
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.86769806902987,
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-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.152858729987724,
-      "end_time": 25.826953409592907,
-      "duration": 4.674094679605183,
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-      "duration_frames": 74785,
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-      "utterance_id": "3138-173544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 155218
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 4.814035803895551,
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-      "duration_frames": 77024,
-      "overlap": false,
-      "utterance_id": "7437-117899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-117899.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.187100952167143,
-      "end_time": 32.0,
-      "duration": 0.8128990478328575,
-      "start_frame": 498993,
-      "duration_frames": 13006,
-      "overlap": false,
-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 73390
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7437/cough/0035.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.242573965916065,
-      "start_time": 20.753140037116104,
-      "speaker_id": "7733"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3138/laugh/0012.wav",
-      "duration": 0.6618526294579855,
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-      "speaker_id": "3138"
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-      "duration": 0.9552089054115311,
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-      "speaker_id": "7437"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024423.json b/conversations/conv_024423.json
deleted file mode 100644
index 277e2b30224def5f3e9ec059b6b673ce99213d7e..0000000000000000000000000000000000000000
--- a/conversations/conv_024423.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4788-294466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-294466.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2487-162474",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 149809
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.081703534287612,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 230529
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.40500239930506,
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-      "utterance_id": "4788-294466",
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-      "real_speaker_id": "4788",
-      "position_frames": 65197
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.35562808467637,
-      "end_time": 32.0,
-      "duration": 0.6443719153236316,
-      "start_frame": 501690,
-      "duration_frames": 10309,
-      "overlap": false,
-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2487/laugh/0091.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4788/laugh/0057.wav",
-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2625/laugh/0011.wav",
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-      "speaker_id": "2625"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024428.json b/conversations/conv_024428.json
deleted file mode 100644
index b64b0caedeaca31802850a576b90b23b95808935..0000000000000000000000000000000000000000
--- a/conversations/conv_024428.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.0625589325297824,
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-      "utterance_id": "1691-142296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": true,
-      "utterance_id": "115-122944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-122944.flac |",
-      "real_speaker_id": "115",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
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-      "position_frames": 49000
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121720.flac |",
-      "real_speaker_id": "115",
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-      "segment_id": "seg0005",
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121896.flac |",
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/115/laugh/0079.wav",
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-      "speaker_id": "1691"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024435.json b/conversations/conv_024435.json
deleted file mode 100644
index ac3d11d2bd216c95baa91a7f14dfaac7c0334388..0000000000000000000000000000000000000000
--- a/conversations/conv_024435.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-178097.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.510001339116517,
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-      "overlap": false,
-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_024439.json b/conversations/conv_024439.json
deleted file mode 100644
index 808921b5cd6bfcd2ca7bb99caaf3d687d608c7f8..0000000000000000000000000000000000000000
--- a/conversations/conv_024439.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134611.flac |",
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-      "real_speaker_id": "1065",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.801507819668263,
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-      "real_speaker_id": "4791",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 21.85685779833806,
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-      "utterance_id": "1065-134602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134602.flac |",
-      "real_speaker_id": "1065",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_024442.json b/conversations/conv_024442.json
deleted file mode 100644
index 8883f41b92e0dd529c05cc88d211eb5be6e3ce1e..0000000000000000000000000000000000000000
--- a/conversations/conv_024442.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5246-5084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "1363",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-139304.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024454.json b/conversations/conv_024454.json
deleted file mode 100644
index de7c4d23d9548025f29023e8206a901eb671bf42..0000000000000000000000000000000000000000
--- a/conversations/conv_024454.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2628-109663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-109663.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "8770",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-109663.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
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-      "event_class": "Blender",
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-      "speaker_id": "2628"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024458.json b/conversations/conv_024458.json
deleted file mode 100644
index ce6563b0c9d17432409373066870a95406a0978a..0000000000000000000000000000000000000000
--- a/conversations/conv_024458.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.63207611560594,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "511-131226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131226.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.062013677633568,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.203824194306968,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148526.flac |",
-      "real_speaker_id": "2063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.39090898176043,
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-      "utterance_id": "511-131228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131228.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.302355081968695,
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-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.503464637688488,
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-      "duration": 4.128611477917453,
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-      "utterance_id": "511-131228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131228.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 66462
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_17.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.8019800858568249,
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-      "speaker_id": "511"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024462.json b/conversations/conv_024462.json
deleted file mode 100644
index 8f9c5744bbadab48365e905c88b0db5e5f1efc15..0000000000000000000000000000000000000000
--- a/conversations/conv_024462.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4681-13056.flac |",
-      "real_speaker_id": "4681",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "3271-169289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 96819
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.299784133249137,
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-      "duration": 3.6488074000340425,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4681-13056.flac |",
-      "real_speaker_id": "4681",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 172681
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024469.json b/conversations/conv_024469.json
deleted file mode 100644
index d4c9f7807ada079b2577ad2e3c7efd2b9bc65107..0000000000000000000000000000000000000000
--- a/conversations/conv_024469.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.187672780361147,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
-      "real_speaker_id": "5337",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 73781
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
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-      "position_frames": 71625
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024474.json b/conversations/conv_024474.json
deleted file mode 100644
index 3689ceceea08b852e8bbc2f0c42c24e87bb26df3..0000000000000000000000000000000000000000
--- a/conversations/conv_024474.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.962786269959487,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
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-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 149787
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-      "duration": 1.44,
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-      "speaker_id": "7688"
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-      "event_class": "cough",
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-      "speaker_id": "7688"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/277/laugh/0141.wav",
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-      "speaker_id": "4733"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024478.json b/conversations/conv_024478.json
deleted file mode 100644
index 2993284994e370e8ca483526d6891ea2cf1fc670..0000000000000000000000000000000000000000
--- a/conversations/conv_024478.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.759006946484929,
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-      "duration": 5.7216521461465994,
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-      "utterance_id": "8786-276735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276735.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-287837.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 63244
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.878297249734295,
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-      "utterance_id": "8786-276735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276735.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 91546
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.149731713141406,
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-      "overlap": false,
-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 150188
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.58604095286158,
-      "end_time": 32.0,
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-      "start_frame": 489376,
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-      "utterance_id": "5909-107621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-107621.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-      "speaker_id": "5909"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024481.json b/conversations/conv_024481.json
deleted file mode 100644
index 3ff72a3c90faa74c0390318cd8a0b892fe4245cc..0000000000000000000000000000000000000000
--- a/conversations/conv_024481.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6032-56222.flac |",
-      "real_speaker_id": "6032",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6032-56222.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126790.flac |",
-      "real_speaker_id": "298",
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-      "real_speaker_id": "3105",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.319967923538393,
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-      "utterance_id": "6032-58192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6032-58192.flac |",
-      "real_speaker_id": "6032",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126790.flac |",
-      "real_speaker_id": "298",
-      "position_frames": 87232
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "6032"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024486.json b/conversations/conv_024486.json
deleted file mode 100644
index 2ee7e07705764b62c597f04c469b8ff4e4907f4e..0000000000000000000000000000000000000000
--- a/conversations/conv_024486.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.48405397346671,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-289453.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 0
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-      "position_frames": 73732
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-    {
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-      "real_speaker_id": "6075",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-289453.flac |",
-      "real_speaker_id": "559",
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-    {
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-      "utterance_id": "6075-57154",
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-      "real_speaker_id": "6075",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024490.json b/conversations/conv_024490.json
deleted file mode 100644
index 314713699c4dd220cbf38dc0fa4b29c7cecaf5e0..0000000000000000000000000000000000000000
--- a/conversations/conv_024490.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6539-66420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66420.flac |",
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-    {
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-      "real_speaker_id": "7480",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66420.flac |",
-      "real_speaker_id": "6539",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.483379840149297,
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-      "utterance_id": "6539-66391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66391.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "speaker_id": "6539"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024497.json b/conversations/conv_024497.json
deleted file mode 100644
index d13525dba2117d98d4cd58b745559ae260f964ba..0000000000000000000000000000000000000000
--- a/conversations/conv_024497.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-212.flac |",
-      "real_speaker_id": "14",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-208.flac |",
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-      "real_speaker_id": "669",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-208.flac |",
-      "real_speaker_id": "14",
-      "position_frames": 95722
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "669",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024507.json b/conversations/conv_024507.json
deleted file mode 100644
index bb324dc258b47f9bb9674bef4a3797e19e7465e7..0000000000000000000000000000000000000000
--- a/conversations/conv_024507.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "5980-22680",
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-      "real_speaker_id": "5980",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274371.flac |",
-      "real_speaker_id": "8226",
-      "position_frames": 103893
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 227997
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-  ],
-  "background_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024511.json b/conversations/conv_024511.json
deleted file mode 100644
index 6090a093b504b5ec4b65dce97455cb14f2e5f5ad..0000000000000000000000000000000000000000
--- a/conversations/conv_024511.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4310-14908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171631.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-6540.flac |",
-      "real_speaker_id": "4017",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
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-      "utterance_id": "4017-231846",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
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-      "event_class": "cough",
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-      "speaker_id": "4017"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024527.json b/conversations/conv_024527.json
deleted file mode 100644
index 112d4e0f8e3b83261bb1e04724a7b9fd0ae25a4c..0000000000000000000000000000000000000000
--- a/conversations/conv_024527.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.348787439081561,
-      "duration": 4.348787439081561,
-      "start_frame": 0,
-      "duration_frames": 69580,
-      "overlap": false,
-      "utterance_id": "6087-63229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-63229.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.772641083019287,
-      "end_time": 9.25520126419325,
-      "duration": 4.482560181173964,
-      "start_frame": 76362,
-      "duration_frames": 71720,
-      "overlap": false,
-      "utterance_id": "6087-50469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-50469.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.890991180903786,
-      "end_time": 16.27660177517749,
-      "duration": 6.385610594273706,
-      "start_frame": 158255,
-      "duration_frames": 102169,
-      "overlap": false,
-      "utterance_id": "4481-17498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4481-17498.flac |",
-      "real_speaker_id": "4481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.64226101420124,
-      "end_time": 21.581468654711742,
-      "duration": 4.939207640510501,
-      "start_frame": 266276,
-      "duration_frames": 79027,
-      "overlap": false,
-      "utterance_id": "4481-17499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4481-17499.flac |",
-      "real_speaker_id": "4481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.59407484872977,
-      "end_time": 25.464955532049814,
-      "duration": 3.8708806833200438,
-      "start_frame": 345505,
-      "duration_frames": 61934,
-      "overlap": true,
-      "utterance_id": "6087-63225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-63225.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.873873290854963,
-      "end_time": 32.0,
-      "duration": 5.126126709145037,
-      "start_frame": 429981,
-      "duration_frames": 82018,
-      "overlap": false,
-      "utterance_id": "4481-17498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4481-17498.flac |",
-      "real_speaker_id": "4481",
-      "position_frames": 102169
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_8.wav",
-      "duration": 0.23709750566893423,
-      "start_time": 7.242670917577983
-    },
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.5829818237150173,
-      "start_time": 28.5285115743003
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6087/cough/0086.wav",
-      "duration": 1.12,
-      "start_time": 4.376267355807845,
-      "speaker_id": "6087"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6087/laugh/0064.wav",
-      "duration": 1.0912623023131625,
-      "start_time": 3.430262732156969,
-      "speaker_id": "6087"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4481/cough/0063.wav",
-      "duration": 0.3956052108464495,
-      "start_time": 21.664956021010873,
-      "speaker_id": "4481"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6087/laugh/0089.wav",
-      "duration": 1.16,
-      "start_time": 25.47830755381301,
-      "speaker_id": "6087"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4481/laugh/0052.wav",
-      "duration": 1.24,
-      "start_time": 25.538388027357684,
-      "speaker_id": "4481"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024531.json b/conversations/conv_024531.json
deleted file mode 100644
index 6fb49a028cfa259019e30b61f2efdebdcf784f1f..0000000000000000000000000000000000000000
--- a/conversations/conv_024531.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.144560780773723,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.799890586497832,
-      "duration": 4.799890586497832,
-      "start_frame": 0,
-      "duration_frames": 76798,
-      "overlap": false,
-      "utterance_id": "2979-156237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156237.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.0152631199388535,
-      "end_time": 9.994110421882091,
-      "duration": 3.9788473019432384,
-      "start_frame": 96244,
-      "duration_frames": 63661,
-      "overlap": false,
-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.173679332395045,
-      "end_time": 15.776206709878705,
-      "duration": 5.602527377483661,
-      "start_frame": 162778,
-      "duration_frames": 89640,
-      "overlap": false,
-      "utterance_id": "2979-156236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156236.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.297023207880894,
-      "end_time": 19.79909142549422,
-      "duration": 3.502068217613326,
-      "start_frame": 260752,
-      "duration_frames": 56033,
-      "overlap": false,
-      "utterance_id": "2979-156237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156237.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 76798
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.150215639023145,
-      "end_time": 26.428209106468007,
-      "duration": 5.277993467444861,
-      "start_frame": 338403,
-      "duration_frames": 84447,
-      "overlap": false,
-      "utterance_id": "8490-284268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284268.flac |",
-      "real_speaker_id": "8490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.429079932623253,
-      "end_time": 31.144560780773723,
-      "duration": 3.7154808481504684,
-      "start_frame": 438865,
-      "duration_frames": 59447,
-      "overlap": false,
-      "utterance_id": "2979-156236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156236.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 89640
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 11.532140240589861,
-      "start_time": 17.780344574319063
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
-      "duration": 1.7548299319727891,
-      "start_time": 25.667073142704737
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2979/cough/0072.wav",
-      "duration": 0.9890698043099535,
-      "start_time": 4.984834387023657,
-      "speaker_id": "2979"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2592/laugh/0076.wav",
-      "duration": 1.16,
-      "start_time": 4.627403928352582,
-      "speaker_id": "2592"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2979/laugh/0045.wav",
-      "duration": 1.2161408020669797,
-      "start_time": 15.955723699566793,
-      "speaker_id": "2979"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2979/cough/0054.wav",
-      "duration": 1.1061653412206773,
-      "start_time": 13.75937364316258,
-      "speaker_id": "2979"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024541.json b/conversations/conv_024541.json
deleted file mode 100644
index 94658338d9e89c47189c8ca98a648e650799d028..0000000000000000000000000000000000000000
--- a/conversations/conv_024541.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5786664636142995,
-      "duration": 3.5786664636142995,
-      "start_frame": 0,
-      "duration_frames": 57258,
-      "overlap": false,
-      "utterance_id": "2407-7667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7667.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.0883873515792395,
-      "end_time": 9.581121193280815,
-      "duration": 5.4927338417015745,
-      "start_frame": 65414,
-      "duration_frames": 87883,
-      "overlap": false,
-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.688740380025207,
-      "end_time": 17.496666931475456,
-      "duration": 6.807926551450249,
-      "start_frame": 171019,
-      "duration_frames": 108926,
-      "overlap": false,
-      "utterance_id": "147-125761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/147-125761.flac |",
-      "real_speaker_id": "147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.122313877360426,
-      "end_time": 23.051043436171803,
-      "duration": 4.9287295588113755,
-      "start_frame": 289957,
-      "duration_frames": 78859,
-      "overlap": false,
-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.621023357766006,
-      "end_time": 28.3280658930973,
-      "duration": 4.707042535331294,
-      "start_frame": 377936,
-      "duration_frames": 75312,
-      "overlap": false,
-      "utterance_id": "2407-7667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7667.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 57258
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.73173268982929,
-      "end_time": 32.0,
-      "duration": 3.2682673101707103,
-      "start_frame": 459707,
-      "duration_frames": 52292,
-      "overlap": false,
-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 78859
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.27319173497017,
-      "start_time": 10.061587513709021
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
-      "duration": 1.7253723877700575,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2407/laugh/0023.wav",
-      "duration": 1.36,
-      "start_time": 3.592131220606067,
-      "speaker_id": "2407"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2276/laugh/0092.wav",
-      "duration": 1.349076369084439,
-      "start_time": 2.7240111213427007,
-      "speaker_id": "2276"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2407/laugh/0061.wav",
-      "duration": 1.1151814846770134,
-      "start_time": 22.23601949589349,
-      "speaker_id": "2407"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2407/cough/0033.wav",
-      "duration": 1.16,
-      "start_time": 22.303689165547496,
-      "speaker_id": "2407"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2276/laugh/0084.wav",
-      "duration": 0.6784254152013728,
-      "start_time": 28.03482244578789,
-      "speaker_id": "2276"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024546.json b/conversations/conv_024546.json
deleted file mode 100644
index 9e9624203ec58a9fd370a2f48aade86b0b938c88..0000000000000000000000000000000000000000
--- a/conversations/conv_024546.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.28001787673842,
-      "duration": 4.28001787673842,
-      "start_frame": 0,
-      "duration_frames": 68480,
-      "overlap": false,
-      "utterance_id": "228-131212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.5825448238132207,
-      "end_time": 7.217830714340019,
-      "duration": 3.635285890526799,
-      "start_frame": 57320,
-      "duration_frames": 58164,
-      "overlap": true,
-      "utterance_id": "5565-40589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.497574814301432,
-      "end_time": 12.919433273912361,
-      "duration": 4.421858459610929,
-      "start_frame": 135961,
-      "duration_frames": 70749,
-      "overlap": true,
-      "utterance_id": "228-121761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-121761.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.020535983752287,
-      "end_time": 18.768858702368615,
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-      "duration_frames": 91973,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 58164
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "728",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.32390937496084,
-      "end_time": 32.0,
-      "duration": 5.6760906250391585,
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-      "duration_frames": 90817,
-      "overlap": false,
-      "utterance_id": "228-131212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 68480
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-      "duration": 0.2008390022675737,
-      "start_time": 28.06448739548764
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_14.wav",
-      "duration": 0.11190476190476191,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/228/cough/0011.wav",
-      "duration": 1.00341968540694,
-      "start_time": 4.3015427877789305,
-      "speaker_id": "228"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5565/laugh/0066.wav",
-      "duration": 0.7896689029045927,
-      "start_time": 18.994326856289,
-      "speaker_id": "5565"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/728/laugh/0114.wav",
-      "duration": 1.04,
-      "start_time": 25.58162492727078,
-      "speaker_id": "728"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024550.json b/conversations/conv_024550.json
deleted file mode 100644
index e7a08bd53e679ae1454b074767bac97b2f5b3b65..0000000000000000000000000000000000000000
--- a/conversations/conv_024550.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.2529379497414785,
-      "duration": 5.2529379497414785,
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-      "overlap": false,
-      "utterance_id": "274-121382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121382.flac |",
-      "real_speaker_id": "274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.415479496737896,
-      "end_time": 10.479532330832402,
-      "duration": 5.064052834094507,
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-      "duration_frames": 81024,
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-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.121132255506321,
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-      "duration_frames": 80177,
-      "overlap": false,
-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.686747447114357,
-      "end_time": 21.373177408921563,
-      "duration": 4.686429961807208,
-      "start_frame": 266987,
-      "duration_frames": 74982,
-      "overlap": false,
-      "utterance_id": "274-121392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121392.flac |",
-      "real_speaker_id": "274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.901792335957325,
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-      "overlap": false,
-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 80177
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.29054746454221,
-      "end_time": 29.706687934655744,
-      "duration": 3.416140470113532,
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-      "duration_frames": 54658,
-      "overlap": false,
-      "utterance_id": "274-121382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121382.flac |",
-      "real_speaker_id": "274",
-      "position_frames": 84047
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.696410530293825,
-      "end_time": 32.0,
-      "duration": 1.303589469706175,
-      "start_frame": 491142,
-      "duration_frames": 20857,
-      "overlap": false,
-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 142219
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
-      "duration": 16.838049886621317,
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
-      "duration": 2.3725526717414396,
-      "start_time": 17.337628357644014
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 3.737233560090703,
-      "start_time": 3.353347127035397
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/274/cough/0006.wav",
-      "duration": 1.08,
-      "start_time": 1.7608094940019037,
-      "speaker_id": "274"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6652/laugh/0133.wav",
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-      "duration": 1.14,
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-      "speaker_id": "6652"
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-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/274/cough/0005.wav",
-      "duration": 0.6912566503967892,
-      "start_time": 29.894702810244034,
-      "speaker_id": "274"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/102/laugh/0168.wav",
-      "duration": 0.7950938562721267,
-      "start_time": 29.698897659034188,
-      "speaker_id": "102"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/102/cough/0155.wav",
-      "duration": 0.7,
-      "start_time": 29.97437653652,
-      "speaker_id": "102"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024551.json b/conversations/conv_024551.json
deleted file mode 100644
index 31a582c84e64151b0d5ec1ba7419dfb1dfbcc53b..0000000000000000000000000000000000000000
--- a/conversations/conv_024551.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.446168060540568,
-      "duration": 4.446168060540568,
-      "start_frame": 0,
-      "duration_frames": 71138,
-      "overlap": false,
-      "utterance_id": "8259-276906",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276906.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.550973012835519,
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-      "utterance_id": "4948-28015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28015.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "3021-121438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.61833266752788,
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-      "duration": 5.000870460938473,
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-      "overlap": false,
-      "utterance_id": "8259-276906",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276906.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 71138
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.02612745032512,
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-      "duration": 5.336039160188908,
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-      "overlap": false,
-      "utterance_id": "4948-28002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28002.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.73822980876395,
-      "end_time": 32.0,
-      "duration": 4.2617701912360495,
-      "start_frame": 443811,
-      "duration_frames": 68188,
-      "overlap": false,
-      "utterance_id": "3021-121439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121439.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "start_time": 16.023671340201677
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 2.6783762687631048,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8259/cough/0072.wav",
-      "duration": 0.7423758403321221,
-      "start_time": 0,
-      "speaker_id": "8259"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4948/laugh/0117.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.6816246890705713,
-      "start_time": 31.31837531092943,
-      "speaker_id": "3021"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024566.json b/conversations/conv_024566.json
deleted file mode 100644
index 8890a729f7e5a905f2fefeef901000c743fd5630..0000000000000000000000000000000000000000
--- a/conversations/conv_024566.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.83191640297702,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 3.6989840185214007,
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-      "utterance_id": "5445-21280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21280.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.530803536227717,
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-      "utterance_id": "1646-121408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121408.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 87694,
-      "overlap": false,
-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.51331524834642,
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-      "duration_frames": 48261,
-      "overlap": false,
-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 87694
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.252362841692854,
-      "end_time": 27.517282251143623,
-      "duration": 6.26491940945077,
-      "start_frame": 340037,
-      "duration_frames": 100238,
-      "overlap": false,
-      "utterance_id": "1646-121408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121408.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 94024
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.768352197440226,
-      "end_time": 31.83191640297702,
-      "duration": 3.063564205536792,
-      "start_frame": 460293,
-      "duration_frames": 49017,
-      "overlap": false,
-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 135955
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "duration": 0.8010430839002267,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5445/laugh/0116.wav",
-      "duration": 1.56,
-      "start_time": 3.857193284213098,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1646/laugh/0116.wav",
-      "duration": 1.16,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1646/cough/0025.wav",
-      "duration": 1.08,
-      "start_time": 20.03356413146314,
-      "speaker_id": "1646"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024570.json b/conversations/conv_024570.json
deleted file mode 100644
index d896b7efc060ccf45ca54a3c97bc0d19859756f0..0000000000000000000000000000000000000000
--- a/conversations/conv_024570.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_024582.json b/conversations/conv_024582.json
deleted file mode 100644
index f81a4ea9881f745300be77830c99e81af0019599..0000000000000000000000000000000000000000
--- a/conversations/conv_024582.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7957",
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-      "real_speaker_id": "7957",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/594-128329.flac |",
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-      "position_frames": 0
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_024585.json b/conversations/conv_024585.json
deleted file mode 100644
index 8f4eb15c3433f141e0037a9a8ef2486fad6b3ef3..0000000000000000000000000000000000000000
--- a/conversations/conv_024585.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_024589.json b/conversations/conv_024589.json
deleted file mode 100644
index 96a2e6b94d09bfd8291fd8fdb1831da20d293321..0000000000000000000000000000000000000000
--- a/conversations/conv_024589.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7367/cough/0046.wav",
-      "duration": 0.630490727322227,
-      "start_time": 13.497630755767807,
-      "speaker_id": "7367"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7367/laugh/0118.wav",
-      "duration": 0.5550483792803467,
-      "start_time": 26.060185363575737,
-      "speaker_id": "7367"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7367/cough/0094.wav",
-      "duration": 1.06,
-      "start_time": 27.296305878186836,
-      "speaker_id": "7367"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024593.json b/conversations/conv_024593.json
deleted file mode 100644
index 13986c170545b29a25adbd5e7d19bbdac779f6e8..0000000000000000000000000000000000000000
--- a/conversations/conv_024593.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.011394237483678,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.76819432775933,
-      "duration": 6.76819432775933,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.133537733456127,
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-      "duration": 3.0423735084164187,
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-      "overlap": true,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.796325635983749,
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-      "start_frame": 172741,
-      "duration_frames": 75790,
-      "overlap": false,
-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 108291
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.234151274426637,
-      "end_time": 21.1774867010345,
-      "duration": 4.943335426607862,
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-      "duration_frames": 79093,
-      "overlap": false,
-      "utterance_id": "1425-139291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139291.flac |",
-      "real_speaker_id": "1425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.3973757024676,
-      "end_time": 25.251813475324155,
-      "duration": 3.8544377728565578,
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-      "duration_frames": 61671,
-      "overlap": false,
-      "utterance_id": "2531-156720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156720.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.58603975148488,
-      "end_time": 31.011394237483678,
-      "duration": 6.425354485998799,
-      "start_frame": 393376,
-      "duration_frames": 102805,
-      "overlap": true,
-      "utterance_id": "2531-156724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156724.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.705348316724484,
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_5.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2531/laugh/0073.wav",
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-      "start_time": 5.332322813939315,
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-      "event_class": "cough",
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-      "duration": 0.9840579862838679,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2531/laugh/0076.wav",
-      "duration": 1.4,
-      "start_time": 15.775040057268257,
-      "speaker_id": "2531"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024594.json b/conversations/conv_024594.json
deleted file mode 100644
index 2ce799ee52a78627af2110fd17361b9f644f5b1c..0000000000000000000000000000000000000000
--- a/conversations/conv_024594.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1636-130501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70171.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6084-2159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.4438906080745,
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-      "duration_frames": 59200,
-      "overlap": false,
-      "utterance_id": "1636-130535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130535.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.353832041761947,
-      "end_time": 25.240406228003604,
-      "duration": 4.886574186241655,
-      "start_frame": 325661,
-      "duration_frames": 78185,
-      "overlap": false,
-      "utterance_id": "6272-70168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70168.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.533134408257325,
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-      "overlap": false,
-      "utterance_id": "1636-141789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-141789.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1636/laugh/0070.wav",
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-      "start_time": 4.532801371100104,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 30.50477834169667,
-      "speaker_id": "1636"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024602.json b/conversations/conv_024602.json
deleted file mode 100644
index 195ab20e477323b8618df87b8a17be489fda5962..0000000000000000000000000000000000000000
--- a/conversations/conv_024602.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "639-143022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.112440653403002,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1733.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 79977
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "56-1730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1730.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.16473042684945,
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-      "utterance_id": "639-143022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 171752
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.529868370471053,
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-      "duration_frames": 55522,
-      "overlap": false,
-      "utterance_id": "56-1733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1733.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 61842
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 0.84,
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-    {
-      "event_class": "cough",
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-      "start_time": 27.541168302164937,
-      "speaker_id": "56"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024605.json b/conversations/conv_024605.json
deleted file mode 100644
index 4e67e31ba460bee1b9ba7474e0ee7c4b33262c46..0000000000000000000000000000000000000000
--- a/conversations/conv_024605.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.752415867475689,
-      "duration": 3.752415867475689,
-      "start_frame": 0,
-      "duration_frames": 60038,
-      "overlap": false,
-      "utterance_id": "3909-11695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-11695.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-179163.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "3238-134398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 1.82153768160646,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3290/laugh/0055.wav",
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-      "start_time": 16.899118627346798,
-      "speaker_id": "3290"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3238/laugh/0022.wav",
-      "duration": 0.975634840214884,
-      "start_time": 26.776677336632233,
-      "speaker_id": "3238"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024613.json b/conversations/conv_024613.json
deleted file mode 100644
index 71a4b3769f4cf18e7c633a33dbb10c248cb4a496..0000000000000000000000000000000000000000
--- a/conversations/conv_024613.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.155104879189893,
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-      "utterance_id": "4841-26660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26660.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.3751451560625725,
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-      "utterance_id": "2531-156724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156724.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
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-      "start_time": 9.076470177007309,
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-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6492-68353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68353.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 77200
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68353.flac |",
-      "real_speaker_id": "6492",
-      "position_frames": 57437
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.411807828884143,
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-      "utterance_id": "2531-156724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156724.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 62895
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
-      "duration": 0.30428571428571427,
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 4.395459154748088,
-      "speaker_id": "4841"
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "start_time": 29.87533447467753,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2531/laugh/0062.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "2531"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024614.json b/conversations/conv_024614.json
deleted file mode 100644
index 369daba592e26e3d299ca0bb8188b0d44cf7001f..0000000000000000000000000000000000000000
--- a/conversations/conv_024614.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.511502941009338,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54007.flac |",
-      "real_speaker_id": "6078",
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-      "utterance_id": "4591-16221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-16221.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 75213
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.481286792160287,
-      "end_time": 26.22870838459216,
-      "duration": 5.747421592431875,
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-      "duration_frames": 91958,
-      "overlap": true,
-      "utterance_id": "4591-16221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-16221.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 62133
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.030057066013107,
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-      "duration": 3.969942933986893,
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-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 167963
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_0.wav",
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/960/laugh/0048.wav",
-      "duration": 1.12,
-      "start_time": 0,
-      "speaker_id": "960"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024618.json b/conversations/conv_024618.json
deleted file mode 100644
index 1997e8fc69d0ab6841dd1c17a29986b2b8d379ba..0000000000000000000000000000000000000000
--- a/conversations/conv_024618.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 102460
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6459-70128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70128.flac |",
-      "real_speaker_id": "6459",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 202812
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "949-138545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-138545.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134657.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.4389480146328,
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-      "utterance_id": "7514-96429",
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-      "real_speaker_id": "7514",
-      "position_frames": 258043
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_4.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7514/laugh/0029.wav",
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-      "duration": 1.24,
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-      "event_class": "cough",
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-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "7514"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024622.json b/conversations/conv_024622.json
deleted file mode 100644
index 3638dbb3712c13d940a3437403618a6aa119b8ec..0000000000000000000000000000000000000000
--- a/conversations/conv_024622.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2758-86588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86588.flac |",
-      "real_speaker_id": "2758",
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-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_024634.json b/conversations/conv_024634.json
deleted file mode 100644
index 816f52c03e6bbfbb4063a617aaf8e6fdc9c1a686..0000000000000000000000000000000000000000
--- a/conversations/conv_024634.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24516.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.144238769854145,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-44575.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_024638.json b/conversations/conv_024638.json
deleted file mode 100644
index 532840916d247ca07c1810e02981ad751aeaf28a..0000000000000000000000000000000000000000
--- a/conversations/conv_024638.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "real_speaker_id": "1699",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 174017
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-}
\ No newline at end of file
diff --git a/conversations/conv_024643.json b/conversations/conv_024643.json
deleted file mode 100644
index 71a69d90725c17499b118f33f11656686a094713..0000000000000000000000000000000000000000
--- a/conversations/conv_024643.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "329-862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "707",
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-      "real_speaker_id": "707",
-      "position_frames": 78998
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "707"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024644.json b/conversations/conv_024644.json
deleted file mode 100644
index 9cf4603722f6b1def3f7c8a0f360ebb09ed8e6fd..0000000000000000000000000000000000000000
--- a/conversations/conv_024644.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.96701972135301,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.50530005332809,
-      "duration": 5.50530005332809,
-      "start_frame": 0,
-      "duration_frames": 88084,
-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.557342926679963,
-      "end_time": 10.090857055837184,
-      "duration": 4.53351412915722,
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-      "overlap": true,
-      "utterance_id": "8240-116288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-116288.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.86761636612638,
-      "end_time": 15.752745410441449,
-      "duration": 4.885129044315067,
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-      "duration_frames": 78162,
-      "overlap": true,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.308666915290143,
-      "end_time": 21.2994256966918,
-      "duration": 3.990758781401655,
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-      "duration_frames": 63852,
-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 88084
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.679782231564804,
-      "end_time": 25.716538242033256,
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-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 78162
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.668011604284807,
-      "end_time": 31.96701972135301,
-      "duration": 5.299008117068205,
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-      "utterance_id": "8240-283234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-283234.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1704/laugh/0047.wav",
-      "duration": 1.4,
-      "start_time": 20.11201775120632,
-      "speaker_id": "1704"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1704/cough/0029.wav",
-      "duration": 1.0,
-      "start_time": 20.59590729369003,
-      "speaker_id": "1704"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024652.json b/conversations/conv_024652.json
deleted file mode 100644
index 018f4b7bdacc6b27d00dd6dc97bff3ad54999737..0000000000000000000000000000000000000000
--- a/conversations/conv_024652.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2624-88360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-291718.flac |",
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-      "utterance_id": "510-130560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130560.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.12854100716314,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.3247902841476,
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-      "utterance_id": "510-130101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130101.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 25.74514874652093,
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-      "utterance_id": "6965-277899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-277899.flac |",
-      "real_speaker_id": "6965",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.716799096360074,
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-  "paralinguistic_events": [
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-      "duration": 1.32,
-      "start_time": 28.87044677567175,
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024655.json b/conversations/conv_024655.json
deleted file mode 100644
index 089d0b25f8d0b454dfb33e706f4024dd5f20d376..0000000000000000000000000000000000000000
--- a/conversations/conv_024655.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.636486781414494,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "5424-291181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-291181.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30592.flac |",
-      "real_speaker_id": "5044",
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-      "real_speaker_id": "5424",
-      "position_frames": 79403
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "5044-30602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30602.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.48422895285715,
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-      "utterance_id": "5424-296464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-296464.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30592.flac |",
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-      "position_frames": 94668
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024659.json b/conversations/conv_024659.json
deleted file mode 100644
index 55e0ee4a26c8643b946aa4b1256c2b293b091ece..0000000000000000000000000000000000000000
--- a/conversations/conv_024659.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "6883-66623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6883-66623.flac |",
-      "real_speaker_id": "6883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "6950-86823",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86823.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "6883",
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-    },
-    {
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-      "segment_id": "seg0005",
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-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024663.json b/conversations/conv_024663.json
deleted file mode 100644
index aca37045de867b5b3747979246d42d5270f16217..0000000000000000000000000000000000000000
--- a/conversations/conv_024663.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.681566791678673,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.612537547791858,
-      "duration": 5.612537547791858,
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-      "overlap": false,
-      "utterance_id": "5826-53496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-53496.flac |",
-      "real_speaker_id": "5826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.145325050212625,
-      "end_time": 10.824895990800574,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-127219.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.35492408141334,
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-      "duration": 4.6050604045880394,
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-      "duration_frames": 73680,
-      "overlap": false,
-      "utterance_id": "8152-258993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-258993.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.61641580398274,
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-      "duration": 5.097316717276166,
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-      "duration_frames": 81557,
-      "overlap": false,
-      "utterance_id": "317-130248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130248.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.90499514462962,
-      "end_time": 25.96407496754689,
-      "duration": 4.059079822917268,
-      "start_frame": 350479,
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-      "overlap": false,
-      "utterance_id": "5826-48845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-48845.flac |",
-      "real_speaker_id": "5826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.699510660480588,
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-      "duration": 4.982056131198085,
-      "start_frame": 411192,
-      "duration_frames": 79712,
-      "overlap": true,
-      "utterance_id": "8152-258974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-258974.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5826/laugh/0039.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "8152"
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-    {
-      "event_class": "cough",
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-      "duration": 0.84,
-      "start_time": 27.735712319934482,
-      "speaker_id": "8152"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024675.json b/conversations/conv_024675.json
deleted file mode 100644
index 5218c42c5be19ca366666ddce436403fe6e64e92..0000000000000000000000000000000000000000
--- a/conversations/conv_024675.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8347-282412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-282412.flac |",
-      "real_speaker_id": "8347",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-258283.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28257.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-258283.flac |",
-      "real_speaker_id": "8347",
-      "position_frames": 106217
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1110-134829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134829.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.14383937775426,
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-      "overlap": false,
-      "utterance_id": "1110-134828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134828.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "1110"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024678.json b/conversations/conv_024678.json
deleted file mode 100644
index 540e64799a670b664d7050a4edc6d013c4a07abe..0000000000000000000000000000000000000000
--- a/conversations/conv_024678.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-12723.flac |",
-      "real_speaker_id": "4289",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14677.flac |",
-      "real_speaker_id": "3615",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4289-21393",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_024679.json b/conversations/conv_024679.json
deleted file mode 100644
index 10b6620b0e11fafdfba84f9937cac2c818d5d911..0000000000000000000000000000000000000000
--- a/conversations/conv_024679.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "951-138582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-138582.flac |",
-      "real_speaker_id": "951",
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-    {
-      "segment_id": "seg0001",
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-    {
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-      "speaker_id": "1246"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024680.json b/conversations/conv_024680.json
deleted file mode 100644
index 7f56a5c7380f5077974508a1febfc66f71cf3120..0000000000000000000000000000000000000000
--- a/conversations/conv_024680.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.95451484543957,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2254-152825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152825.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.07333383184817,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-73961.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.14067493018825,
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-      "duration_frames": 84133,
-      "overlap": true,
-      "utterance_id": "6918-61317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-61317.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.685649621362813,
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-      "utterance_id": "2254-152831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152831.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_024696.json b/conversations/conv_024696.json
deleted file mode 100644
index 6f1b51850310f582de362e07068f8131a5483a11..0000000000000000000000000000000000000000
--- a/conversations/conv_024696.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.547987681365182,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-9918.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14133.flac |",
-      "real_speaker_id": "5339",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1815-143381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143381.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.357200250100828,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-172165.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024697.json b/conversations/conv_024697.json
deleted file mode 100644
index 7bba28f2b90d51b41f5b868a8e95a3db89a7cb07..0000000000000000000000000000000000000000
--- a/conversations/conv_024697.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73728.flac |",
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-      "real_speaker_id": "1933",
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_024701.json b/conversations/conv_024701.json
deleted file mode 100644
index 351a01eacaac78f4a16ad8428ef66e0c695723e7..0000000000000000000000000000000000000000
--- a/conversations/conv_024701.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1058/cough/0006.wav",
-      "duration": 1.12,
-      "start_time": 17.638500016385066,
-      "speaker_id": "1058"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5968/laugh/0038.wav",
-      "duration": 0.675428643766995,
-      "start_time": 27.67082471550022,
-      "speaker_id": "5968"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7505/laugh/0013.wav",
-      "duration": 1.24,
-      "start_time": 29.43287784539713,
-      "speaker_id": "7505"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024706.json b/conversations/conv_024706.json
deleted file mode 100644
index 215cd2c7b2a8fa3724c2789f0702f9f9f222a647..0000000000000000000000000000000000000000
--- a/conversations/conv_024706.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.740733340397959,
-      "duration": 5.740733340397959,
-      "start_frame": 0,
-      "duration_frames": 91851,
-      "overlap": false,
-      "utterance_id": "6643-67858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6643-67858.flac |",
-      "real_speaker_id": "6643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.969641053235447,
-      "end_time": 10.302656391945783,
-      "duration": 3.3330153387103363,
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-      "utterance_id": "6828-68770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "6828-68770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 53328
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.47665755141095,
-      "end_time": 20.63034865670882,
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-      "overlap": false,
-      "utterance_id": "6643-67851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6643-67851.flac |",
-      "real_speaker_id": "6643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.262325898536293,
-      "end_time": 25.142247776021495,
-      "duration": 3.879921877485202,
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-      "overlap": false,
-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.680229380389502,
-      "end_time": 29.138629076917148,
-      "duration": 3.4583996965276462,
-      "start_frame": 410883,
-      "duration_frames": 55334,
-      "overlap": false,
-      "utterance_id": "6643-67858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6643-67858.flac |",
-      "real_speaker_id": "6643",
-      "position_frames": 91851
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.919508524435795,
-      "end_time": 32.0,
-      "duration": 2.080491475564205,
-      "start_frame": 478712,
-      "duration_frames": 33287,
-      "overlap": false,
-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 62078
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "6643"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6643/cough/0055.wav",
-      "duration": 1.0992999392850165,
-      "start_time": 0,
-      "speaker_id": "6643"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6828/laugh/0054.wav",
-      "duration": 0.9934223538660001,
-      "start_time": 25.33799928428786,
-      "speaker_id": "6828"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024710.json b/conversations/conv_024710.json
deleted file mode 100644
index feb9a57dc041a39ee7b4ec0bbbc79679799b3b0d..0000000000000000000000000000000000000000
--- a/conversations/conv_024710.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.57688368785871,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.536813074932311,
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-      "duration_frames": 56589,
-      "overlap": false,
-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.004114163859545,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "duration_frames": 68497,
-      "overlap": true,
-      "utterance_id": "245-122647",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122647.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.155284181393261,
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-      "utterance_id": "4425-14497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
-      "position_frames": 58832
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.22686660230483,
-      "end_time": 25.98496779733859,
-      "duration": 5.758101195033761,
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-      "duration_frames": 92129,
-      "overlap": false,
-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 56589
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.363826460812906,
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-      "duration_frames": 83408,
-      "overlap": false,
-      "utterance_id": "245-122648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/245/laugh/0114.wav",
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-      "start_time": 8.135842324288186,
-      "speaker_id": "245"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4425/laugh/0018.wav",
-      "duration": 1.08,
-      "start_time": 11.93768230520266,
-      "speaker_id": "4425"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024717.json b/conversations/conv_024717.json
deleted file mode 100644
index 591ca1eb82121ed0815d4fe93c80d527e1785ee4..0000000000000000000000000000000000000000
--- a/conversations/conv_024717.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "7205-64110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7205-64110.flac |",
-      "real_speaker_id": "7205",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.345595822729905,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5665-38052.flac |",
-      "real_speaker_id": "5665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "7205-96093",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7205-96093.flac |",
-      "real_speaker_id": "7205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.06156065667357,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 75808
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.595448821802876,
-      "end_time": 32.0,
-      "duration": 2.4045511781971243,
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-      "duration_frames": 38472,
-      "overlap": false,
-      "utterance_id": "7205-64112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7205-64112.flac |",
-      "real_speaker_id": "7205",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5665/laugh/0014.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5665/cough/0075.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7205/laugh/0161.wav",
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-      "speaker_id": "7205"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024726.json b/conversations/conv_024726.json
deleted file mode 100644
index e662b8f778d60c71f6b6d78a57036b6532746720..0000000000000000000000000000000000000000
--- a/conversations/conv_024726.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.038313071780903,
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-      "duration_frames": 80613,
-      "overlap": false,
-      "utterance_id": "3945-890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3945-890.flac |",
-      "real_speaker_id": "3945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "1266-136524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-136524.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-136523.flac |",
-      "real_speaker_id": "1266",
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_024730.json b/conversations/conv_024730.json
deleted file mode 100644
index 976391a957c41114ba0f5fea1c8dffe390155849..0000000000000000000000000000000000000000
--- a/conversations/conv_024730.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1773-145729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145729.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.184165601869571,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8424-284526.flac |",
-      "real_speaker_id": "8424",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
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-      "real_speaker_id": "102",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 81817
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.34891527702091,
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-      "position_frames": 0
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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\ No newline at end of file
diff --git a/conversations/conv_024731.json b/conversations/conv_024731.json
deleted file mode 100644
index 04e349678895121c1b3f9e7005fed6391835e189..0000000000000000000000000000000000000000
--- a/conversations/conv_024731.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "3272",
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-      "real_speaker_id": "3290",
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-  "foreground_events": [
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-      "speaker_id": "3272"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024740.json b/conversations/conv_024740.json
deleted file mode 100644
index 118bc81f75baa7593998a1c36a3bb5c16ed9a7b4..0000000000000000000000000000000000000000
--- a/conversations/conv_024740.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.99854293974866,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_024747.json b/conversations/conv_024747.json
deleted file mode 100644
index 3e04459087ff56930d5f7408f7484a16a207f266..0000000000000000000000000000000000000000
--- a/conversations/conv_024747.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5002-72876",
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-      "position_frames": 0
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-    {
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-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
-      "duration": 2.189646478582091,
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5002/laugh/0095.wav",
-      "duration": 1.3828781197525006,
-      "start_time": 29.225902534184538,
-      "speaker_id": "5002"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024751.json b/conversations/conv_024751.json
deleted file mode 100644
index 8e77add5040630c2baa40f747e572a0e45b36047..0000000000000000000000000000000000000000
--- a/conversations/conv_024751.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.543627950474944,
-      "duration": 5.543627950474944,
-      "start_frame": 0,
-      "duration_frames": 88698,
-      "overlap": false,
-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.780651735482832,
-      "end_time": 8.90922056131842,
-      "duration": 3.1285688258355893,
-      "start_frame": 92490,
-      "duration_frames": 50057,
-      "overlap": false,
-      "utterance_id": "1132-145024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-145024.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.187450580416195,
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-      "overlap": false,
-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.975868284515911,
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-      "duration": 3.660694923546464,
-      "start_frame": 223613,
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-      "overlap": false,
-      "utterance_id": "1132-138883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-138883.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 17.950189984993912,
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-      "overlap": false,
-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 88698
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.875191745303184,
-      "end_time": 29.927952445630197,
-      "duration": 6.0527607003270125,
-      "start_frame": 382003,
-      "duration_frames": 96844,
-      "overlap": false,
-      "utterance_id": "1132-138883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-138883.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 58571
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.66003955488513,
-      "end_time": 32.0,
-      "duration": 1.339960445114869,
-      "start_frame": 490560,
-      "duration_frames": 21439,
-      "overlap": false,
-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 173643
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 6.836875803814033
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
-      "duration": 2.236575963718821,
-      "start_time": 21.353797955936418
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-      "start_time": 27.425636388908835
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/408/laugh/0086.wav",
-      "duration": 1.12,
-      "start_time": 0,
-      "speaker_id": "408"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1132/laugh/0103.wav",
-      "duration": 1.44,
-      "start_time": 9.019906040178329,
-      "speaker_id": "1132"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/408/laugh/0065.wav",
-      "duration": 1.2561063682623415,
-      "start_time": 21.030931644524465,
-      "speaker_id": "408"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024756.json b/conversations/conv_024756.json
deleted file mode 100644
index 3c3d5db8cf0fb21704e2f876b109cf963614b6cc..0000000000000000000000000000000000000000
--- a/conversations/conv_024756.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.862942817723521,
-      "duration": 3.862942817723521,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2003-143254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.157463067369131,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153728.flac |",
-      "real_speaker_id": "2388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "296-141721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.306647084646423,
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-      "duration": 6.196830358237836,
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-      "duration_frames": 99149,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 61807
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.395301197249488,
-      "end_time": 25.76548916751136,
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-      "utterance_id": "296-141721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 67517
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.971887814092224,
-      "end_time": 32.0,
-      "duration": 5.028112185907776,
-      "start_frame": 431550,
-      "duration_frames": 80449,
-      "overlap": false,
-      "utterance_id": "2003-143255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143255.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2003/laugh/0120.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2388/cough/0136.wav",
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-      "speaker_id": "2388"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/296/laugh/0112.wav",
-      "duration": 1.1727062472353271,
-      "start_time": 26.017771466672677,
-      "speaker_id": "296"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2003/laugh/0018.wav",
-      "duration": 1.54,
-      "start_time": 25.230201311737552,
-      "speaker_id": "2003"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024767.json b/conversations/conv_024767.json
deleted file mode 100644
index f375daac2f37a923f6c6903a19b59a56e2de887c..0000000000000000000000000000000000000000
--- a/conversations/conv_024767.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2297-28913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2297-28913.flac |",
-      "real_speaker_id": "2297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.1396955633965247,
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-      "duration_frames": 66100,
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-      "utterance_id": "2709-158074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2709-158074.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1421-8534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8534.flac |",
-      "real_speaker_id": "1421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.950643523759052,
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-      "duration_frames": 89814,
-      "overlap": false,
-      "utterance_id": "2709-158074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2709-158074.flac |",
-      "real_speaker_id": "2709",
-      "position_frames": 66100
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.71160191886327,
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-      "utterance_id": "1421-8534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8534.flac |",
-      "real_speaker_id": "1421",
-      "position_frames": 92317
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.531547775629296,
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-      "duration": 5.468452224370704,
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-      "utterance_id": "2709-158074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2709-158074.flac |",
-      "real_speaker_id": "2709",
-      "position_frames": 155914
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2297/laugh/0024.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2709/laugh/0035.wav",
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-      "speaker_id": "2709"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024771.json b/conversations/conv_024771.json
deleted file mode 100644
index 8e7d3e8e74077d8ed0d5b89628c87aff44176080..0000000000000000000000000000000000000000
--- a/conversations/conv_024771.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.010149203571033,
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-      "start_frame": 0,
-      "duration_frames": 64162,
-      "overlap": false,
-      "utterance_id": "1382-130548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1382-130548.flac |",
-      "real_speaker_id": "1382",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.385997678063343,
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-      "utterance_id": "1731-142320",
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-      "real_speaker_id": "1731",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6038-56778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "6038"
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\ No newline at end of file
diff --git a/conversations/conv_024784.json b/conversations/conv_024784.json
deleted file mode 100644
index 58bdaa5f882848bafda0aed85af0bb041e58f3cc..0000000000000000000000000000000000000000
--- a/conversations/conv_024784.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128283.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-124587.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128278.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5750-100289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-100289.flac |",
-      "real_speaker_id": "5750",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_024785.json b/conversations/conv_024785.json
deleted file mode 100644
index 2e2deff9d319838e6c3188b588e256fb3b875c92..0000000000000000000000000000000000000000
--- a/conversations/conv_024785.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-55211.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "5567",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_024788.json b/conversations/conv_024788.json
deleted file mode 100644
index 5f1a3a462b58e532b8e931472d73874942885aa5..0000000000000000000000000000000000000000
--- a/conversations/conv_024788.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_024792.json b/conversations/conv_024792.json
deleted file mode 100644
index 649c41c581e7e91590b0bd0efdc14a2467302822..0000000000000000000000000000000000000000
--- a/conversations/conv_024792.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-1060.flac |",
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-      "position_frames": 0
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-    {
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-      "segment_id": "seg0005",
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-      "start_time": 26.92413420401264,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-14909.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.52029024228827,
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-      "utterance_id": "8302-281317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281317.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
-      "duration": 0.29401360544217686,
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1230/laugh/0100.wav",
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-      "speaker_id": "1230"
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-      "event_class": "cough",
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-      "duration": 1.0156291137961924,
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-      "speaker_id": "1230"
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-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 21.35890000772493,
-      "speaker_id": "3290"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3290/laugh/0069.wav",
-      "duration": 1.24,
-      "start_time": 25.495919859260397,
-      "speaker_id": "3290"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024802.json b/conversations/conv_024802.json
deleted file mode 100644
index 5713b076789d751588f4d4ceed841852352dd095..0000000000000000000000000000000000000000
--- a/conversations/conv_024802.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.519630995574197,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7009-2331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.929327195486696,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.922055565757969,
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-      "utterance_id": "7009-2331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 82141
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58843.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 154150
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58843.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 61309
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "6104"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024803.json b/conversations/conv_024803.json
deleted file mode 100644
index 04793cded70319dda1bd0aff8c9e6b5425304123..0000000000000000000000000000000000000000
--- a/conversations/conv_024803.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7480-93348.flac |",
-      "real_speaker_id": "7480",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7480-93348.flac |",
-      "real_speaker_id": "7480",
-      "position_frames": 80051
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-      "utterance_id": "6364-66741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6364-66741.flac |",
-      "real_speaker_id": "6364",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.841201346026935,
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-      "duration_frames": 63048,
-      "overlap": true,
-      "utterance_id": "614-6500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.301194155054457,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6364-66741.flac |",
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-      "position_frames": 75653
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7480-93348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7480-93348.flac |",
-      "real_speaker_id": "7480",
-      "position_frames": 153171
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_024812.json b/conversations/conv_024812.json
deleted file mode 100644
index 8aeb058158f4ea62e5b81475783681604aed4e70..0000000000000000000000000000000000000000
--- a/conversations/conv_024812.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "5126-36956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-36956.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.5225039305116805,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.592721174920763,
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-      "utterance_id": "2473-157859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157859.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.96180313510396,
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-      "utterance_id": "5126-27504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-27504.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 76794
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2473-155521",
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-      "real_speaker_id": "2473",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024815.json b/conversations/conv_024815.json
deleted file mode 100644
index 89567a0c38124d14af028cdd4464f4b260c5f198..0000000000000000000000000000000000000000
--- a/conversations/conv_024815.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.86994682259845,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "4697-100174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-100174.flac |",
-      "real_speaker_id": "4697",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-39921.flac |",
-      "real_speaker_id": "5163",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.381812878866569,
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-92179.flac |",
-      "real_speaker_id": "4697",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-39921.flac |",
-      "real_speaker_id": "5163",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "speaker_id": "5163"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024819.json b/conversations/conv_024819.json
deleted file mode 100644
index 7fa2a8a9d40c5ce9969b9e70748a396a6231ba68..0000000000000000000000000000000000000000
--- a/conversations/conv_024819.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.794475515878951,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
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-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "6533-399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.19106177024929,
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-      "utterance_id": "6533-399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "6533"
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_024823.json b/conversations/conv_024823.json
deleted file mode 100644
index e717589c7a8c13cf7f112fbc27f6ab62d951b11f..0000000000000000000000000000000000000000
--- a/conversations/conv_024823.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1349-135892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154436.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 83887
-    },
-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88749.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 85050
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
-      "duration": 2.127671038722383,
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2730/laugh/0009.wav",
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-      "speaker_id": "2730"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024828.json b/conversations/conv_024828.json
deleted file mode 100644
index bb8c0a159444b2d74879d830e4af5442cda2e1e0..0000000000000000000000000000000000000000
--- a/conversations/conv_024828.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.2488007332667173,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73075.flac |",
-      "real_speaker_id": "6690",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 48739
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6690-73073",
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-      "real_speaker_id": "6690",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "2997",
-      "position_frames": 114573
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.429415718891448,
-      "start_frame": 441129,
-      "duration_frames": 70870,
-      "overlap": false,
-      "utterance_id": "6690-73073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73073.flac |",
-      "real_speaker_id": "6690",
-      "position_frames": 84101
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
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-      "speaker_id": "6690"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024835.json b/conversations/conv_024835.json
deleted file mode 100644
index 06a406c7218f9db0267598c41eb53c9a5a88af7f..0000000000000000000000000000000000000000
--- a/conversations/conv_024835.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.08533323771802,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 3.761738213543533,
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-      "duration_frames": 60187,
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\ No newline at end of file
diff --git a/conversations/conv_024839.json b/conversations/conv_024839.json
deleted file mode 100644
index 8ff4aa04c2041c1944d00e192a302e2fa251f835..0000000000000000000000000000000000000000
--- a/conversations/conv_024839.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4902.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_024842.json b/conversations/conv_024842.json
deleted file mode 100644
index 1a118f7aa64108b8caba8488b72fe1ec417346a1..0000000000000000000000000000000000000000
--- a/conversations/conv_024842.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "4839",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141642.flac |",
-      "real_speaker_id": "1535",
-      "position_frames": 213385
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-    {
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-      "utterance_id": "4839-15305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15305.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_024854.json b/conversations/conv_024854.json
deleted file mode 100644
index f31ec2f6e506d19ccbf4b4632cf270835a431ea9..0000000000000000000000000000000000000000
--- a/conversations/conv_024854.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7354-87676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87676.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 0
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-      "utterance_id": "5703-47198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
-      "real_speaker_id": "5703",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 83993
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "7150",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024855.json b/conversations/conv_024855.json
deleted file mode 100644
index c955eae63f07547efad4ca22de14d26987b8b943..0000000000000000000000000000000000000000
--- a/conversations/conv_024855.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4836-26485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "4396",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 154338
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.45084033855641,
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-      "duration": 1.5491596614435892,
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-      "position_frames": 144387
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-  "foreground_events": [
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-      "speaker_id": "4836"
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "start_time": 23.346306033338433,
-      "speaker_id": "4836"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024858.json b/conversations/conv_024858.json
deleted file mode 100644
index eeed5855eeeeedfa692f2d2b2901899d67e91448..0000000000000000000000000000000000000000
--- a/conversations/conv_024858.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8296-266250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-266250.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.163285783963008,
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-      "duration_frames": 81608,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290361.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 11.002035870681382,
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-      "overlap": true,
-      "utterance_id": "7926-254948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 93845
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.745968532383603,
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-      "utterance_id": "8296-279865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-279865.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 192406
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "speaker_id": "7926"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024862.json b/conversations/conv_024862.json
deleted file mode 100644
index 31f29db6d631bb6312d59e8c57623b22bd87b99b..0000000000000000000000000000000000000000
--- a/conversations/conv_024862.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "8011",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7264-92316.flac |",
-      "real_speaker_id": "7264",
-      "position_frames": 49932
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.227442160289396,
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-      "utterance_id": "8011-111754",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-111754.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 73085
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8011/laugh/0118.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024869.json b/conversations/conv_024869.json
deleted file mode 100644
index 21430063bc381e80a6791be18c905abc25f95bff..0000000000000000000000000000000000000000
--- a/conversations/conv_024869.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 95197,
-      "overlap": false,
-      "utterance_id": "6098-57836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6098-57836.flac |",
-      "real_speaker_id": "6098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "937-121903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-121903.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.127949763085372,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "937-121903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-121903.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 61364
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.08531269422127,
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-      "duration": 5.66805554574503,
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-      "utterance_id": "6098-57837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6098-57837.flac |",
-      "real_speaker_id": "6098",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.415937465398,
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-      "duration": 1.5840625346020012,
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-      "utterance_id": "937-132849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-132849.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/937/laugh/0067.wav",
-      "duration": 1.0,
-      "start_time": 30.58779206176529,
-      "speaker_id": "937"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024874.json b/conversations/conv_024874.json
deleted file mode 100644
index b13581d302e2a9d665616dfbf1b083858162118b..0000000000000000000000000000000000000000
--- a/conversations/conv_024874.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_024878.json b/conversations/conv_024878.json
deleted file mode 100644
index 3239f7ebdc2b7369de09061a1f883f339ff03914..0000000000000000000000000000000000000000
--- a/conversations/conv_024878.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-76043.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_024881.json b/conversations/conv_024881.json
deleted file mode 100644
index 76da34d5b6702ac5b40b3f09a526443fbf2b3049..0000000000000000000000000000000000000000
--- a/conversations/conv_024881.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_024886.json b/conversations/conv_024886.json
deleted file mode 100644
index adda07efa9679f433b8e97bc9dba49d5c703542d..0000000000000000000000000000000000000000
--- a/conversations/conv_024886.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41159.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024890.json b/conversations/conv_024890.json
deleted file mode 100644
index 3f38116d925865122b032d0c97f36407a5d45695..0000000000000000000000000000000000000000
--- a/conversations/conv_024890.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6567-53342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
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-      "utterance_id": "4262-14487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14487.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.385977196602333,
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-      "duration": 2.614022803397667,
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-      "utterance_id": "6567-53342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
-      "position_frames": 178499
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_024897.json b/conversations/conv_024897.json
deleted file mode 100644
index c145cb9f2df7d2eb4713429b133e58f586c1f9f4..0000000000000000000000000000000000000000
--- a/conversations/conv_024897.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "278",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7008-34667.flac |",
-      "real_speaker_id": "7008",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
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-      "event_class": "Vacuum_cleaner",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024907.json b/conversations/conv_024907.json
deleted file mode 100644
index d7d5014cbec7bbb3b4f634b7efd926852ca37767..0000000000000000000000000000000000000000
--- a/conversations/conv_024907.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
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-      "position_frames": 48501
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "781",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.569886277422132,
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_024911.json b/conversations/conv_024911.json
deleted file mode 100644
index 53e102c0fdd6e8ba8c179c7f3937985350dc0b2f..0000000000000000000000000000000000000000
--- a/conversations/conv_024911.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7395-89882.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "4415",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72205.flac |",
-      "real_speaker_id": "7140",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7395-89880.flac |",
-      "real_speaker_id": "7395",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.55613854461172,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72205.flac |",
-      "real_speaker_id": "7140",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7395-89882.flac |",
-      "real_speaker_id": "7395",
-      "position_frames": 107910
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7395/laugh/0052.wav",
-      "duration": 1.236255918471433,
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-      "duration": 0.5052681185105408,
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-      "speaker_id": "7395"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024927.json b/conversations/conv_024927.json
deleted file mode 100644
index cdebc10ab3f85265daba97a0f856e8df6d803535..0000000000000000000000000000000000000000
--- a/conversations/conv_024927.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.864231729583224,
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-      "overlap": false,
-      "utterance_id": "1773-145729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145729.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.598867580596238,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.560114119296491,
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-      "start_frame": 168961,
-      "duration_frames": 74703,
-      "overlap": true,
-      "utterance_id": "1773-145729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145729.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 77827
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.67073738182204,
-      "end_time": 20.53754742889983,
-      "duration": 3.8668100470777924,
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-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.738901847802527,
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-      "utterance_id": "1773-139602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.566074089076753,
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-      "duration": 3.4339259109232465,
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-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 61868
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "589"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024931.json b/conversations/conv_024931.json
deleted file mode 100644
index 54c7aacfbcf0d5407fc82e69a37aa145a342444a..0000000000000000000000000000000000000000
--- a/conversations/conv_024931.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.52518788463887,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "7556-103535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-103535.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-91083.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-103536.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.32939103197934,
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-      "overlap": true,
-      "utterance_id": "2522-147156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-91083.flac |",
-      "real_speaker_id": "7278",
-      "position_frames": 110034
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-  ],
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-      "event_class": "Electric_shaver_toothbrush",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024946.json b/conversations/conv_024946.json
deleted file mode 100644
index 94fa3f16a8388c40e150565dcd99044ce770f16f..0000000000000000000000000000000000000000
--- a/conversations/conv_024946.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2592-5341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-5341.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131276.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131256.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "5740",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 83215
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.543035356496958,
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024947.json b/conversations/conv_024947.json
deleted file mode 100644
index 05dc9fa8813400f2d3eba99e3ee1a3987eef2a6d..0000000000000000000000000000000000000000
--- a/conversations/conv_024947.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.73831746469547,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.5347689083182425,
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-      "utterance_id": "6352-83633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6352-83633.flac |",
-      "real_speaker_id": "6352",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7609",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "real_speaker_id": "6925",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 83749
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-  "background_events": [
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-      "speaker_id": "7609"
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-}
\ No newline at end of file
diff --git a/conversations/conv_024950.json b/conversations/conv_024950.json
deleted file mode 100644
index ae944e4c8ebdd5a037a2c169a6dd0928f8ac7728..0000000000000000000000000000000000000000
--- a/conversations/conv_024950.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.442513460265616,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "557-129797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129797.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.6272887512890915,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129796.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.252824378736573,
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-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 72563
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "557-129797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129797.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 84527
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "start_frame": 428806,
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-      "overlap": false,
-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 133815
-    }
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "start_time": 20.10718494735216,
-      "speaker_id": "8404"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024957.json b/conversations/conv_024957.json
deleted file mode 100644
index 5860ff10c13d32126567c304a952135aaa0d1aa6..0000000000000000000000000000000000000000
--- a/conversations/conv_024957.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.41489408093709,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "7752-110526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110526.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123507.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123500.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "7752-110522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110522.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.901187083250008,
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-      "real_speaker_id": "6673",
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-  ],
-  "background_events": [
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-    {
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-      "duration": 0.6254713994533054,
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-      "speaker_id": "303"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024966.json b/conversations/conv_024966.json
deleted file mode 100644
index f03c2421776e28afbaf6d338a44306d07c78c16e..0000000000000000000000000000000000000000
--- a/conversations/conv_024966.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.569271275672545,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "duration": 6.028568545766887,
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-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.56501657444139,
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-      "utterance_id": "412-126975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 96457
-    },
-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.15482994754999,
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-      "utterance_id": "412-126975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/cough/0098.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/laugh/0090.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/412/laugh/0023.wav",
-      "duration": 1.16,
-      "start_time": 28.036300123936655,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024970.json b/conversations/conv_024970.json
deleted file mode 100644
index 2e634077b75a270e2aca86d09c580c2526499e15..0000000000000000000000000000000000000000
--- a/conversations/conv_024970.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.115099452601871,
-      "duration": 6.115099452601871,
-      "start_frame": 0,
-      "duration_frames": 97841,
-      "overlap": false,
-      "utterance_id": "7189-75356",
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\ No newline at end of file
diff --git a/conversations/conv_024982.json b/conversations/conv_024982.json
deleted file mode 100644
index 568842b9c828fda267cbdfce9e8e67a27774aed7..0000000000000000000000000000000000000000
--- a/conversations/conv_024982.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_024985.json b/conversations/conv_024985.json
deleted file mode 100644
index 2fd26caf574a38dc9db8f3d3239f2c8159fc7a85..0000000000000000000000000000000000000000
--- a/conversations/conv_024985.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_024989.json b/conversations/conv_024989.json
deleted file mode 100644
index f3d5559b8556f219f123055123db8f4408225f0d..0000000000000000000000000000000000000000
--- a/conversations/conv_024989.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_024993.json b/conversations/conv_024993.json
deleted file mode 100644
index 0b7247cd65c5117d4732f41e62937873e0bb78a8..0000000000000000000000000000000000000000
--- a/conversations/conv_024993.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.042423809254043,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6874281772655046,
-      "duration": 3.6874281772655046,
-      "start_frame": 0,
-      "duration_frames": 58998,
-      "overlap": false,
-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.166610509711358,
-      "end_time": 9.938726033634387,
-      "duration": 5.772115523923029,
-      "start_frame": 66665,
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-      "overlap": false,
-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.259729987233344,
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-      "duration": 4.456680541971391,
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-      "duration_frames": 71306,
-      "overlap": false,
-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.659144047797001,
-      "end_time": 20.355752194957386,
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-      "duration_frames": 75145,
-      "overlap": false,
-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 92353
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.612151909996832,
-      "end_time": 26.917679942990397,
-      "duration": 6.305528032993564,
-      "start_frame": 329794,
-      "duration_frames": 100888,
-      "overlap": false,
-      "utterance_id": "1027-125140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.191142468638983,
-      "end_time": 30.580278861208082,
-      "duration": 3.3891363925690983,
-      "start_frame": 435058,
-      "duration_frames": 54226,
-      "overlap": false,
-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 58998
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.365091499202386,
-      "end_time": 31.042423809254043,
-      "duration": 0.6773323100516571,
-      "start_frame": 485841,
-      "duration_frames": 10837,
-      "overlap": true,
-      "utterance_id": "8591-284445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284445.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
-      "start_time": 4.94833805397355
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5569/laugh/0038.wav",
-      "duration": 1.046394756783909,
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 2.5114374700834565,
-      "speaker_id": "5569"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8591/laugh/0073.wav",
-      "duration": 0.5265445884662177,
-      "start_time": 8.326751287930456,
-      "speaker_id": "8591"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_024994.json b/conversations/conv_024994.json
deleted file mode 100644
index 3e0cc6333af01ae92b4a298ab6587e203f22d14c..0000000000000000000000000000000000000000
--- a/conversations/conv_024994.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.418629730429153,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.184358718885512,
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-      "overlap": false,
-      "utterance_id": "3541-174236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174236.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.616721214019301,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-293973.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.809884679441625,
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-      "utterance_id": "3541-174236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174236.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 66949
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.889180369175804,
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-      "overlap": false,
-      "utterance_id": "100-121674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121674.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.392114086826286,
-      "end_time": 26.407381218558967,
-      "duration": 5.01526713173268,
-      "start_frame": 342273,
-      "duration_frames": 80244,
-      "overlap": false,
-      "utterance_id": "3541-174240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174240.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.752880872815044,
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-      "duration_frames": 58651,
-      "overlap": false,
-      "utterance_id": "7708-296091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-296091.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
-      "duration": 3.0370061587858728,
-      "start_time": 15.667819220856256
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/laugh/0080.wav",
-      "duration": 1.32,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7708/laugh/0099.wav",
-      "duration": 1.683688777534992,
-      "start_time": 26.059050362620013,
-      "speaker_id": "7708"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025002.json b/conversations/conv_025002.json
deleted file mode 100644
index 06f820a90a3c4e827386475f5e41b7bb4b178f65..0000000000000000000000000000000000000000
--- a/conversations/conv_025002.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.846797528198426,
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-      "utterance_id": "1624-168623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-168623.flac |",
-      "real_speaker_id": "1624",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.663025000434377,
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-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6963",
-      "position_frames": 136600
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.866989771127926,
-      "end_time": 30.94477248748664,
-      "duration": 5.077782716358715,
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-      "duration_frames": 81244,
-      "overlap": false,
-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.254032288542597,
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-      "duration": 0.7459677114574035,
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-      "overlap": false,
-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 81244
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6963/cough/0115.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4406/laugh/0003.wav",
-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "4406"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025005.json b/conversations/conv_025005.json
deleted file mode 100644
index 1b0490ca11baba43edae42679ecfd6f642bc4933..0000000000000000000000000000000000000000
--- a/conversations/conv_025005.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "end_time": 4.000853006946684,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-    {
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
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-      "start_time": 23.997664313516008
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/454/laugh/0000.wav",
-      "duration": 1.3325210445393032,
-      "start_time": 4.069861009380162,
-      "speaker_id": "454"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8573/laugh/0101.wav",
-      "duration": 1.32,
-      "start_time": 16.16164192328155,
-      "speaker_id": "8573"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8573/cough/0025.wav",
-      "duration": 0.6053820454929346,
-      "start_time": 12.683175876172738,
-      "speaker_id": "8573"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/454/laugh/0039.wav",
-      "duration": 0.8723455205354911,
-      "start_time": 16.632217811925997,
-      "speaker_id": "454"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025009.json b/conversations/conv_025009.json
deleted file mode 100644
index eb65256a0197bde109b6bfe83d79cd0ab337d8d4..0000000000000000000000000000000000000000
--- a/conversations/conv_025009.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.128148994650444,
-      "duration": 5.128148994650444,
-      "start_frame": 0,
-      "duration_frames": 82050,
-      "overlap": false,
-      "utterance_id": "6506-10073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-10073.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.492603758433006,
-      "end_time": 9.527108003808777,
-      "duration": 4.034504245375771,
-      "start_frame": 87881,
-      "duration_frames": 64552,
-      "overlap": false,
-      "utterance_id": "8643-269254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-269254.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.831678721989604,
-      "end_time": 15.62905796461602,
-      "duration": 5.797379242626417,
-      "start_frame": 157306,
-      "duration_frames": 92758,
-      "overlap": false,
-      "utterance_id": "6506-10073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-10073.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 82050
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.729257076341703,
-      "end_time": 20.45966308950068,
-      "duration": 3.7304060131589765,
-      "start_frame": 267668,
-      "duration_frames": 59686,
-      "overlap": false,
-      "utterance_id": "1914-133440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-133440.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.075480032405757,
-      "end_time": 25.111575146552564,
-      "duration": 4.036095114146808,
-      "start_frame": 337207,
-      "duration_frames": 64577,
-      "overlap": false,
-      "utterance_id": "6506-73020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-73020.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.405327302015436,
-      "end_time": 29.741065138062304,
-      "duration": 4.3357378360468655,
-      "start_frame": 406485,
-      "duration_frames": 69371,
-      "overlap": false,
-      "utterance_id": "6506-10073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-10073.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 174808
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.227443861168304,
-      "end_time": 32.0,
-      "duration": 1.7725561388316962,
-      "start_frame": 483639,
-      "duration_frames": 28360,
-      "overlap": false,
-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 26.246968463414984,
-      "start_time": 2.0046548799765618
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
-      "duration": 4.644267586569736,
-      "start_time": 13.053513385817569
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
-      "duration": 0.23598639455782314,
-      "start_time": 0.22279810331784974
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6506/laugh/0051.wav",
-      "duration": 0.5560442675743863,
-      "start_time": 5.33200536036299,
-      "speaker_id": "6506"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1914/laugh/0014.wav",
-      "duration": 1.52,
-      "start_time": 14.992126809628983,
-      "speaker_id": "1914"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6506/laugh/0075.wav",
-      "duration": 0.9824958007695632,
-      "start_time": 24.29623251464096,
-      "speaker_id": "6506"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025012.json b/conversations/conv_025012.json
deleted file mode 100644
index d8f9b31029afe93bb420a46b674f396209d3f55c..0000000000000000000000000000000000000000
--- a/conversations/conv_025012.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.661308113328004,
-      "duration": 4.661308113328004,
-      "start_frame": 0,
-      "duration_frames": 74580,
-      "overlap": false,
-      "utterance_id": "969-134362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134362.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.87772934549895,
-      "end_time": 8.594810027969784,
-      "duration": 3.717080682470834,
-      "start_frame": 78043,
-      "duration_frames": 59473,
-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.95785425839284,
-      "end_time": 13.651825772104704,
-      "duration": 4.693971513711864,
-      "start_frame": 143325,
-      "duration_frames": 75103,
-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 59473
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.781284062185613,
-      "end_time": 18.60730907698889,
-      "duration": 4.826025014803279,
-      "start_frame": 220500,
-      "duration_frames": 77216,
-      "overlap": false,
-      "utterance_id": "969-134363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134363.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.16271849858603,
-      "end_time": 24.834215567774717,
-      "duration": 5.671497069188686,
-      "start_frame": 306603,
-      "duration_frames": 90743,
-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 134576
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.820290573895708,
-      "end_time": 29.53311994792908,
-      "duration": 3.7128293740333738,
-      "start_frame": 413124,
-      "duration_frames": 59405,
-      "overlap": false,
-      "utterance_id": "6035-74040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-74040.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.688007722524986,
-      "end_time": 32.0,
-      "duration": 1.3119922774750137,
-      "start_frame": 491008,
-      "duration_frames": 20991,
-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 225319
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
-      "duration": 0.254421768707483,
-      "start_time": 16.884482704984396
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 4.467619047619047,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2056/laugh/0028.wav",
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-      "start_time": 8.385877011662464,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/969/cough/0026.wav",
-      "duration": 1.36,
-      "start_time": 18.76846263773894,
-      "speaker_id": "969"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6035/laugh/0054.wav",
-      "duration": 0.9956184513339025,
-      "start_time": 29.675181478996993,
-      "speaker_id": "6035"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6035/cough/0111.wav",
-      "duration": 0.8838912229859017,
-      "start_time": 29.64303510974259,
-      "speaker_id": "6035"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2056/laugh/0008.wav",
-      "duration": 1.68,
-      "start_time": 30.32,
-      "speaker_id": "2056"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025013.json b/conversations/conv_025013.json
deleted file mode 100644
index 878b53b051941a7a5bcd53eb971abf5405d36ff4..0000000000000000000000000000000000000000
--- a/conversations/conv_025013.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.6494196364474165,
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-      "start_frame": 0,
-      "duration_frames": 90390,
-      "overlap": false,
-      "utterance_id": "7708-293973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-293973.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.755216707333896,
-      "end_time": 11.886914488308982,
-      "duration": 6.1316977809750846,
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-      "overlap": false,
-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.414641861770647,
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-      "duration_frames": 94584,
-      "overlap": false,
-      "utterance_id": "404-132014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132014.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.207433080558065,
-      "end_time": 25.996728163746884,
-      "duration": 5.789295083188819,
-      "start_frame": 323318,
-      "duration_frames": 92628,
-      "overlap": false,
-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 98107
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.297587787594658,
-      "end_time": 29.306979622843926,
-      "duration": 4.009391835249266,
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-      "duration_frames": 64150,
-      "overlap": true,
-      "utterance_id": "404-132013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132013.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.07842150474438,
-      "end_time": 32.0,
-      "duration": 0.9215784952556199,
-      "start_frame": 497254,
-      "duration_frames": 14745,
-      "overlap": false,
-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 190735
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
-      "duration": 2.414781004037793,
-      "start_time": 23.92842176053751
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1495/cough/0115.wav",
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-      "start_time": 5.290947297234819,
-      "speaker_id": "1495"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025014.json b/conversations/conv_025014.json
deleted file mode 100644
index 12a11d4d5a5a5666bd329d7a45b922bf4e6b58ff..0000000000000000000000000000000000000000
--- a/conversations/conv_025014.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.667385402963852,
-      "duration": 3.667385402963852,
-      "start_frame": 0,
-      "duration_frames": 58678,
-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.289347758702933,
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-      "duration_frames": 61438,
-      "overlap": false,
-      "utterance_id": "7011-66622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
-      "real_speaker_id": "7011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.053003253990806,
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-      "duration_frames": 89968,
-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 58678
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
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-      "segment_id": "seg0005",
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-      "start_time": 27.547684522302685,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "start_time": 1.954792244828112,
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_025025.json b/conversations/conv_025025.json
deleted file mode 100644
index 4b92fdc62b26af73920bfe535b3ef75e61e03223..0000000000000000000000000000000000000000
--- a/conversations/conv_025025.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-142924.flac |",
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-      "utterance_id": "2093-143262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143262.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "2093-143264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143264.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88743.flac |",
-      "real_speaker_id": "7143",
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-      "speaker_id": 1,
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-      "utterance_id": "2093-143262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143262.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 87904
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_025029.json b/conversations/conv_025029.json
deleted file mode 100644
index 635264ba7a5b2508e788b6b45cf59f172539a8ea..0000000000000000000000000000000000000000
--- a/conversations/conv_025029.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142276.flac |",
-      "real_speaker_id": "250",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142286.flac |",
-      "real_speaker_id": "250",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025033.json b/conversations/conv_025033.json
deleted file mode 100644
index 80411b6edde5914dc7578d7833c3c55c4a13951a..0000000000000000000000000000000000000000
--- a/conversations/conv_025033.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "666-11243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11243.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2533",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 69218
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_025043.json b/conversations/conv_025043.json
deleted file mode 100644
index 7ec701ac3db1079a4e8ac1ed8da9faeaff32370a..0000000000000000000000000000000000000000
--- a/conversations/conv_025043.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.69663201180599,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.479489321500593,
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-      "utterance_id": "2499-156155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156155.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "249",
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-      "real_speaker_id": "249",
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-      "real_speaker_id": "2499",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 0
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-  "background_events": [
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-      "speaker_id": "2654"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025044.json b/conversations/conv_025044.json
deleted file mode 100644
index d3f625794873a91cb7a7c784cf532852d3d97e93..0000000000000000000000000000000000000000
--- a/conversations/conv_025044.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "7177",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-270794.flac |",
-      "real_speaker_id": "8799",
-      "position_frames": 106158
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_025048.json b/conversations/conv_025048.json
deleted file mode 100644
index 5ca13dda2bb68022c3ee5d15b2ac1af93559de8d..0000000000000000000000000000000000000000
--- a/conversations/conv_025048.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-    {
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-      "real_speaker_id": "3465",
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\ No newline at end of file
diff --git a/conversations/conv_025052.json b/conversations/conv_025052.json
deleted file mode 100644
index 0583c01ef03667e8f14ca03487dbb016a047d454..0000000000000000000000000000000000000000
--- a/conversations/conv_025052.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "start_time": 30.980869654936463,
-      "speaker_id": "6224"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025055.json b/conversations/conv_025055.json
deleted file mode 100644
index df12128927b8878e439ca0b7c18c851c7ae2690b..0000000000000000000000000000000000000000
--- a/conversations/conv_025055.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.211247097070235,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-276146.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7307-91998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-91998.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.446585160102808,
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-      "utterance_id": "7997-111777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111777.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.67963482960245,
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-      "utterance_id": "7997-275179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-275179.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7307-276146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-276146.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 86921
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025064.json b/conversations/conv_025064.json
deleted file mode 100644
index 9912d6c3b7533891c020167e8b8ea2ae7e291d87..0000000000000000000000000000000000000000
--- a/conversations/conv_025064.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32135.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1732.flac |",
-      "real_speaker_id": "56",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.701861804906144,
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-      "utterance_id": "7188-82904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-82904.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.470420405487832,
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-      "duration": 3.5295795945121675,
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-      "utterance_id": "5147-32136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32136.flac |",
-      "real_speaker_id": "5147",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
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-    {
-      "event_class": "laugh",
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-    {
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-      "start_time": 21.42078317304853,
-      "speaker_id": "56"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025068.json b/conversations/conv_025068.json
deleted file mode 100644
index 22b707443ff8a17b7eba40900a804d2c63a653c3..0000000000000000000000000000000000000000
--- a/conversations/conv_025068.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "979",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
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-      "position_frames": 74462
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "4993"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025069.json b/conversations/conv_025069.json
deleted file mode 100644
index c4530fa467c8b2f760665b56b08071ce6446fc84..0000000000000000000000000000000000000000
--- a/conversations/conv_025069.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5183/laugh/0080.wav",
-      "duration": 1.122334407282612,
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-      "speaker_id": "5183"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5183/cough/0014.wav",
-      "duration": 1.1283937153777694,
-      "start_time": 25.840322474066628,
-      "speaker_id": "5183"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025072.json b/conversations/conv_025072.json
deleted file mode 100644
index 50b53d0fb76547beea4cbda5470d80c974df5f68..0000000000000000000000000000000000000000
--- a/conversations/conv_025072.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.430027740399446,
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-      "duration_frames": 86880,
-      "overlap": false,
-      "utterance_id": "5796-49593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-49593.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.246289618513963,
-      "end_time": 12.70105104151293,
-      "duration": 6.454761422998967,
-      "start_frame": 99940,
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-      "overlap": false,
-      "utterance_id": "2384-152900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2384-152900.flac |",
-      "real_speaker_id": "2384",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.257732384651614,
-      "end_time": 18.117357740986872,
-      "duration": 4.8596253563352585,
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-      "duration_frames": 77754,
-      "overlap": false,
-      "utterance_id": "5796-49593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-49593.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 86880
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.313938131724004,
-      "end_time": 22.409395999022298,
-      "duration": 3.0954578672982933,
-      "start_frame": 309023,
-      "duration_frames": 49527,
-      "overlap": false,
-      "utterance_id": "2825-666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-666.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.51608716541423,
-      "end_time": 27.157312071128246,
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-      "overlap": false,
-      "utterance_id": "5796-66357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-66357.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.288881409328127,
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-      "duration": 3.711118590671873,
-      "start_frame": 452622,
-      "duration_frames": 59377,
-      "overlap": false,
-      "utterance_id": "2825-6391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-6391.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
-      "duration": 1.1753238743012684,
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-    {
-      "event_class": "Frying",
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-      "duration": 4.97910757524192,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5796/laugh/0087.wav",
-      "duration": 1.24,
-      "start_time": 1.8419245302057061,
-      "speaker_id": "5796"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025086.json b/conversations/conv_025086.json
deleted file mode 100644
index 7769e743e1425d3f2e81a654988bb0a90cdb7d3c..0000000000000000000000000000000000000000
--- a/conversations/conv_025086.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8156-276902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8156-276902.flac |",
-      "real_speaker_id": "8156",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "start_time": 5.20894728036197,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77905.flac |",
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-      "utterance_id": "8156-104485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8156-104485.flac |",
-      "real_speaker_id": "8156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.44395007651828,
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-      "duration_frames": 54142,
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-      "utterance_id": "7220-77905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77905.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 84942
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.504309377175293,
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-      "duration": 5.7508913978010545,
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-      "duration_frames": 92014,
-      "overlap": false,
-      "utterance_id": "8156-104485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8156-104485.flac |",
-      "real_speaker_id": "8156",
-      "position_frames": 99488
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.58485501073684,
-      "end_time": 32.0,
-      "duration": 3.4151449892631582,
-      "start_frame": 457357,
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-      "overlap": false,
-      "utterance_id": "7220-77905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77905.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 139084
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_15.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "7220"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025087.json b/conversations/conv_025087.json
deleted file mode 100644
index ede674182a45cf0f58acc3066583e30fd6fd57d2..0000000000000000000000000000000000000000
--- a/conversations/conv_025087.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7360-86776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7360-86776.flac |",
-      "real_speaker_id": "7360",
-      "position_frames": 0
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-    {
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-      "start_time": 3.946859252277224,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-129808.flac |",
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-      "real_speaker_id": "3595",
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-      "speaker_id": 1,
-      "start_time": 14.680551008809843,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7360-86712.flac |",
-      "real_speaker_id": "7360",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.648347989428704,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-129808.flac |",
-      "real_speaker_id": "1283",
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_025091.json b/conversations/conv_025091.json
deleted file mode 100644
index 5f69ec90564cf5d40b6819779d794d6349e0b681..0000000000000000000000000000000000000000
--- a/conversations/conv_025091.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.18377022971035,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1553-140047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140047.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "1553-140048",
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-      "event_class": "Dog",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1553/laugh/0092.wav",
-      "duration": 1.42,
-      "start_time": 0,
-      "speaker_id": "1553"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7475/laugh/0003.wav",
-      "duration": 1.1804744485269594,
-      "start_time": 10.785525638580692,
-      "speaker_id": "7475"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2882/laugh/0074.wav",
-      "duration": 1.4661231550200813,
-      "start_time": 29.786041054802833,
-      "speaker_id": "2882"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025101.json b/conversations/conv_025101.json
deleted file mode 100644
index bfcaa9edc684bed8b9a0bef0958076c25e22c69b..0000000000000000000000000000000000000000
--- a/conversations/conv_025101.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.480595822176706,
-      "duration": 6.480595822176706,
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-      "overlap": false,
-      "utterance_id": "1639-132848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.662677438284513,
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-      "duration": 4.664523168492305,
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-      "utterance_id": "3379-132592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "duration_frames": 81575,
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-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.874917648157826,
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-      "duration": 5.917933316113297,
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-      "utterance_id": "3379-132592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 74632
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.32343334121453,
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-      "duration_frames": 79704,
-      "overlap": true,
-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 81575
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.501940166906042,
-      "end_time": 32.0,
-      "duration": 1.4980598330939578,
-      "start_frame": 488031,
-      "duration_frames": 23968,
-      "overlap": false,
-      "utterance_id": "7732-107520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107520.flac |",
-      "real_speaker_id": "7732",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "speaker_id": "7732"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025106.json b/conversations/conv_025106.json
deleted file mode 100644
index ac08aae691f0465f1f0f711800bf07f43a976fac..0000000000000000000000000000000000000000
--- a/conversations/conv_025106.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3703-71531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
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-      "utterance_id": "3703-71550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71550.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "4108-2777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2777.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.433462365436835,
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-      "overlap": false,
-      "utterance_id": "3703-73732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-73732.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.732371685694332,
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-      "duration": 2.267628314305668,
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-      "utterance_id": "4108-2772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2772.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_1.wav",
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-      "start_time": 0,
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-      "speaker_id": "4108"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025110.json b/conversations/conv_025110.json
deleted file mode 100644
index 0c25f6b3e5484202c24473b6bce76d9dae98f9af..0000000000000000000000000000000000000000
--- a/conversations/conv_025110.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121652.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2388-153728",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_025117.json b/conversations/conv_025117.json
deleted file mode 100644
index 09f7248f9730aa768d2e4b342374f5f179d5d26b..0000000000000000000000000000000000000000
--- a/conversations/conv_025117.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "end_time": 4.27943087615695,
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-      "utterance_id": "3125-132586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
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-    {
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-      "real_speaker_id": "3125",
-      "position_frames": 158687
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.843472615203144,
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-      "duration": 3.1565273847968562,
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-      "utterance_id": "1629-139710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139710.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
-      "duration": 1.021408719805323,
-      "start_time": 6.60474599992337
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_4.wav",
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-      "start_time": 2.095858603795415
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3125/laugh/0141.wav",
-      "duration": 1.0346686619439138,
-      "start_time": 4.485075422963788,
-      "speaker_id": "3125"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/829/laugh/0143.wav",
-      "duration": 1.12,
-      "start_time": 7.268139005907411,
-      "speaker_id": "829"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1629/laugh/0108.wav",
-      "duration": 1.2890225118585554,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3125/laugh/0093.wav",
-      "duration": 0.98,
-      "start_time": 20.391920868253695,
-      "speaker_id": "3125"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3125/cough/0010.wav",
-      "duration": 0.5065202403035162,
-      "start_time": 21.102142312283945,
-      "speaker_id": "3125"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1629/cough/0047.wav",
-      "duration": 0.8754520823909908,
-      "start_time": 31.12454791760901,
-      "speaker_id": "1629"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025121.json b/conversations/conv_025121.json
deleted file mode 100644
index b6116ab7be553b1eb73520aa975dc150c2db481e..0000000000000000000000000000000000000000
--- a/conversations/conv_025121.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.39968129859975,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.491432196317862,
-      "duration": 6.491432196317862,
-      "start_frame": 0,
-      "duration_frames": 103862,
-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.26688327750706,
-      "end_time": 10.80693992139246,
-      "duration": 3.540056643885401,
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-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.52548843723402,
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-      "duration": 4.268897225043038,
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-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 103862
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 56640
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 172164
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.386230481032538,
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-      "duration": 4.013450817567211,
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-      "duration_frames": 64215,
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-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 258546
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "speaker_id": "3559"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025137.json b/conversations/conv_025137.json
deleted file mode 100644
index 9094b3ff89235ca8b04b6db22ac32da60ab83ef3..0000000000000000000000000000000000000000
--- a/conversations/conv_025137.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "duration": 6.937483344797029,
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-      "duration_frames": 110999,
-      "overlap": false,
-      "utterance_id": "2582-155972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155972.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.401939205525952,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53263.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "1970-28415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-28415.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.719504679037925,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53263.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 98122
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.046662072600622,
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-      "utterance_id": "2582-155973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155973.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.7539930328105,
-      "end_time": 32.0,
-      "duration": 1.2460069671895013,
-      "start_frame": 492063,
-      "duration_frames": 19936,
-      "overlap": false,
-      "utterance_id": "6947-53263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53263.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 148693
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "6947"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2582/laugh/0072.wav",
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-      "start_time": 29.475622759633907,
-      "speaker_id": "2582"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2582/cough/0014.wav",
-      "duration": 1.04,
-      "start_time": 30.528076704391598,
-      "speaker_id": "2582"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6947/laugh/0047.wav",
-      "duration": 1.04,
-      "start_time": 29.53580427015518,
-      "speaker_id": "6947"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025140.json b/conversations/conv_025140.json
deleted file mode 100644
index 4d17c4aea1b0e1ef2b0611f42c6e014b3f08d09a..0000000000000000000000000000000000000000
--- a/conversations/conv_025140.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.957108071473167,
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-      "duration_frames": 70628,
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-      "utterance_id": "6557-65546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-65546.flac |",
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-      "position_frames": 0
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-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 87929
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.44380616800425,
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-      "duration": 5.139014674192747,
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-      "utterance_id": "6557-65546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-65546.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 70628
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-      "real_speaker_id": "1731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "6557",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6557/laugh/0072.wav",
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-      "start_time": 27.56990936043433,
-      "speaker_id": "6557"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025147.json b/conversations/conv_025147.json
deleted file mode 100644
index 4fe7b1882903130cdc60bbb645cd765d2a80eef5..0000000000000000000000000000000000000000
--- a/conversations/conv_025147.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.498986714537621,
-      "duration": 6.498986714537621,
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-      "overlap": false,
-      "utterance_id": "7644-104722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.226917240223724,
-      "end_time": 10.445053629955465,
-      "duration": 4.218136389731741,
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-      "duration_frames": 67490,
-      "overlap": true,
-      "utterance_id": "568-127952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-127952.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.257960816246733,
-      "end_time": 17.70434641000581,
-      "duration": 6.4463855937590795,
-      "start_frame": 180127,
-      "duration_frames": 103142,
-      "overlap": false,
-      "utterance_id": "5831-87174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-87174.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.345937660252936,
-      "end_time": 24.8485243604669,
-      "duration": 6.502586700213964,
-      "start_frame": 293535,
-      "duration_frames": 104041,
-      "overlap": false,
-      "utterance_id": "568-127952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-127952.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 67490
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.39998393111262,
-      "end_time": 29.553350230688096,
-      "duration": 4.1533662995754765,
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-      "overlap": false,
-      "utterance_id": "568-126452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-126452.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.113013918231825,
-      "end_time": 32.0,
-      "duration": 1.8869860817681747,
-      "start_frame": 481808,
-      "duration_frames": 30191,
-      "overlap": false,
-      "utterance_id": "5831-98689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-98689.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "start_time": 10.177825234102968
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_025151.json b/conversations/conv_025151.json
deleted file mode 100644
index 4e37afb86fa1676c0931556272deb3a47de071dd..0000000000000000000000000000000000000000
--- a/conversations/conv_025151.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.00149846561814,
-      "duration": 5.00149846561814,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5727-47030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47030.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.948178736316014,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.57581821599686,
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-      "utterance_id": "5727-47032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47032.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.68646623969519,
-      "end_time": 27.68124250717568,
-      "duration": 5.994776267480489,
-      "start_frame": 346983,
-      "duration_frames": 95916,
-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 73079
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.024680751004333,
-      "end_time": 32.0,
-      "duration": 3.9753192489956675,
-      "start_frame": 448394,
-      "duration_frames": 63605,
-      "overlap": false,
-      "utterance_id": "6912-70847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/81/cough/0020.wav",
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-      "start_time": 27.763535250257938,
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-    {
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-      "speaker_id": "6912"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025156.json b/conversations/conv_025156.json
deleted file mode 100644
index 9f7b553e7c0c38b5127b1cf55c6e565dfac642fa..0000000000000000000000000000000000000000
--- a/conversations/conv_025156.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4563-26445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4563-26445.flac |",
-      "real_speaker_id": "4563",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.846727951228013,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4563-26441.flac |",
-      "real_speaker_id": "4563",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.31759640899545,
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-      "duration_frames": 83203,
-      "overlap": false,
-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 110892
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4563-26441.flac |",
-      "real_speaker_id": "4563",
-      "position_frames": 87783
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.641930102145547,
-      "end_time": 32.0,
-      "duration": 2.3580698978544525,
-      "start_frame": 474270,
-      "duration_frames": 37729,
-      "overlap": false,
-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 194095
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 1.28,
-      "start_time": 6.686604847707406,
-      "speaker_id": "525"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4563/laugh/0064.wav",
-      "duration": 1.0,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "525"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025157.json b/conversations/conv_025157.json
deleted file mode 100644
index 0f7ca0ede9c2cd832b433f8b3de4a22d7f5359b0..0000000000000000000000000000000000000000
--- a/conversations/conv_025157.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "duration": 4.527479116467765,
-      "start_frame": 0,
-      "duration_frames": 72439,
-      "overlap": false,
-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.087951086839326,
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-      "overlap": false,
-      "utterance_id": "7277-106407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106407.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.009505965003049,
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-      "overlap": false,
-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 72439
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6411",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6411",
-      "position_frames": 49215
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1885-136863",
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-      "real_speaker_id": "1885",
-      "position_frames": 157386
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1885/laugh/0073.wav",
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 29.51577633907509,
-      "speaker_id": "1885"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025160.json b/conversations/conv_025160.json
deleted file mode 100644
index 8a32bbe79e5708a27ec2d852c579c44e0dc9dda7..0000000000000000000000000000000000000000
--- a/conversations/conv_025160.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.321658364054263,
-      "duration": 5.321658364054263,
-      "start_frame": 0,
-      "duration_frames": 85146,
-      "overlap": false,
-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.849689757028066,
-      "end_time": 11.57624226868126,
-      "duration": 5.726552511653194,
-      "start_frame": 93595,
-      "duration_frames": 91624,
-      "overlap": false,
-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.720335121816227,
-      "end_time": 17.59161388582952,
-      "duration": 5.871278764013293,
-      "start_frame": 187525,
-      "duration_frames": 93940,
-      "overlap": false,
-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 85146
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.70166408138349,
-      "end_time": 21.851919564151068,
-      "duration": 4.150255482767576,
-      "start_frame": 283226,
-      "duration_frames": 66404,
-      "overlap": false,
-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 91624
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.277874695505872,
-      "end_time": 26.048791260354143,
-      "duration": 3.7709165648482696,
-      "start_frame": 356445,
-      "duration_frames": 60334,
-      "overlap": false,
-      "utterance_id": "5778-54535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-54535.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.604061623842306,
-      "end_time": 32.0,
-      "duration": 5.3959383761576944,
-      "start_frame": 425664,
-      "duration_frames": 86335,
-      "overlap": false,
-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 158028
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
-      "duration": 1.7117570029801632,
-      "start_time": 16.538727939653693
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_2.wav",
-      "duration": 2.119661009896017,
-      "start_time": 1.1346190531692195
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1715/cough/0062.wav",
-      "duration": 1.08,
-      "start_time": 16.556546615047555,
-      "speaker_id": "1715"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5778/laugh/0084.wav",
-      "duration": 1.4308204487567255,
-      "start_time": 20.761077113502147,
-      "speaker_id": "5778"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025176.json b/conversations/conv_025176.json
deleted file mode 100644
index 42e4531f96d25e2c8f31d8b4b2a363ae0e592549..0000000000000000000000000000000000000000
--- a/conversations/conv_025176.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.2688791138025,
-  "num_speakers": 2,
-  "overlap_rate": 0.6,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.924760682592127,
-      "duration": 4.924760682592127,
-      "start_frame": 0,
-      "duration_frames": 78796,
-      "overlap": false,
-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.109798152621643,
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-      "duration": 6.929237152572522,
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-      "duration_frames": 110867,
-      "overlap": false,
-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 78796
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.959066453821238,
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-      "duration": 6.069581979352524,
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-      "duration_frames": 97113,
-      "overlap": true,
-      "utterance_id": "2297-8377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2297-8377.flac |",
-      "real_speaker_id": "2297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.935992700649898,
-      "end_time": 23.788442079212732,
-      "duration": 5.852449378562835,
-      "start_frame": 286975,
-      "duration_frames": 93639,
-      "overlap": true,
-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 189663
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.644971975162594,
-      "end_time": 31.2688791138025,
-      "duration": 6.6239071386399075,
-      "start_frame": 394319,
-      "duration_frames": 105982,
-      "overlap": true,
-      "utterance_id": "2297-8377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2297-8377.flac |",
-      "real_speaker_id": "2297",
-      "position_frames": 97113
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 16.378644329991065
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-      "start_time": 13.883550148035724
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.1392565680962945,
-      "start_time": 1.1452431964965752
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2971/laugh/0025.wav",
-      "duration": 1.8599998890217397,
-      "start_time": 0.4220991146402463,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2971/laugh/0107.wav",
-      "duration": 1.32,
-      "start_time": 24.001954561236197,
-      "speaker_id": "2971"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025183.json b/conversations/conv_025183.json
deleted file mode 100644
index 2e9ae83471be4d129f7a86fd2a43930534ec7492..0000000000000000000000000000000000000000
--- a/conversations/conv_025183.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.897627349983181,
-      "duration": 3.897627349983181,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.443718803013818,
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-      "duration_frames": 60009,
-      "overlap": false,
-      "utterance_id": "3894-6553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6553.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "816-2301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 62362
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.164004973011718,
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-      "utterance_id": "3894-6552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6552.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.934540172071813,
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-      "overlap": false,
-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 143454
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 27.563726192035173,
-      "end_time": 32.0,
-      "duration": 4.436273807964827,
-      "start_frame": 441019,
-      "duration_frames": 70980,
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-      "utterance_id": "3894-6552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6552.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-  "paralinguistic_events": [
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-      "start_time": 2.3889803251089736,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/816/cough/0057.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/816/laugh/0092.wav",
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-      "start_time": 17.796292847009305,
-      "speaker_id": "816"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025194.json b/conversations/conv_025194.json
deleted file mode 100644
index bf85ed97122e3f8d207e6537cf58b346853454e4..0000000000000000000000000000000000000000
--- a/conversations/conv_025194.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.271027727165425,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7294-92934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7294-92934.flac |",
-      "real_speaker_id": "7294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.8827080778433185,
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-      "overlap": true,
-      "utterance_id": "7294-92934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7294-92934.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6147-34606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34606.flac |",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
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-      "start_time": 28.367125019815226,
-      "speaker_id": "6147"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6147/cough/0112.wav",
-      "duration": 0.5268437367961387,
-      "start_time": 31.47315626320386,
-      "speaker_id": "6147"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025195.json b/conversations/conv_025195.json
deleted file mode 100644
index 74fe34edf8ee60c49c3e2f1d2345195a5df0dd3c..0000000000000000000000000000000000000000
--- a/conversations/conv_025195.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.0238689636961795,
-      "duration": 3.0238689636961795,
-      "start_frame": 0,
-      "duration_frames": 48381,
-      "overlap": false,
-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.1913337074877193,
-      "end_time": 9.032248283481827,
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-      "start_frame": 51061,
-      "duration_frames": 93454,
-      "overlap": false,
-      "utterance_id": "1815-143388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143388.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.636140092501536,
-      "end_time": 14.092975823970372,
-      "duration": 4.456835731468836,
-      "start_frame": 154178,
-      "duration_frames": 71309,
-      "overlap": false,
-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.078490045881551,
-      "end_time": 20.249855042404413,
-      "duration": 5.17136499652286,
-      "start_frame": 241255,
-      "duration_frames": 82741,
-      "overlap": false,
-      "utterance_id": "1815-143382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143382.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.538442120426318,
-      "end_time": 25.044448218030762,
-      "duration": 4.506006097604444,
-      "start_frame": 328615,
-      "duration_frames": 72096,
-      "overlap": false,
-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 48381
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.161356631050605,
-      "end_time": 29.437577391056138,
-      "duration": 4.276220760005532,
-      "start_frame": 402581,
-      "duration_frames": 68419,
-      "overlap": true,
-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 71309
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.098402024208063,
-      "end_time": 32.0,
-      "duration": 0.9015979757919368,
-      "start_frame": 497574,
-      "duration_frames": 14425,
-      "overlap": false,
-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 120477
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
-      "duration": 14.907210884353741,
-      "start_time": 8.99452024144923
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4305/laugh/0001.wav",
-      "duration": 0.76,
-      "start_time": 3.0645309617023213,
-      "speaker_id": "4305"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1815/laugh/0089.wav",
-      "duration": 0.856294692670484,
-      "start_time": 20.529728126686887,
-      "speaker_id": "1815"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4305/cough/0053.wav",
-      "duration": 1.3,
-      "start_time": 30.7,
-      "speaker_id": "4305"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025199.json b/conversations/conv_025199.json
deleted file mode 100644
index d525e1737b8c8c280bba227d9a3fe34a58304f94..0000000000000000000000000000000000000000
--- a/conversations/conv_025199.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.882455500443754,
-      "duration": 5.882455500443754,
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-      "overlap": false,
-      "utterance_id": "2185-150123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.658129832997305,
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-      "duration_frames": 86306,
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-      "utterance_id": "5012-31089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31089.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.29570692034416,
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-      "overlap": false,
-      "utterance_id": "1384-130459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130459.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.980770174492914,
-      "end_time": 22.85968555365756,
-      "duration": 4.878915379164646,
-      "start_frame": 287692,
-      "duration_frames": 78062,
-      "overlap": false,
-      "utterance_id": "2185-150124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150124.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.398959189576136,
-      "end_time": 28.70847950357759,
-      "duration": 5.309520314001452,
-      "start_frame": 374383,
-      "duration_frames": 84952,
-      "overlap": false,
-      "utterance_id": "5012-31089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31089.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 86306
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.12903215951854,
-      "end_time": 32.0,
-      "duration": 2.870967840481459,
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-      "duration_frames": 45935,
-      "overlap": false,
-      "utterance_id": "1384-130460",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130460.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
-      "duration": 0.47965986394557825,
-      "start_time": 0.6416063764106389
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1384/laugh/0043.wav",
-      "duration": 0.817498450161833,
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-      "speaker_id": "1384"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1384/cough/0022.wav",
-      "duration": 0.9061638042682008,
-      "start_time": 12.35208310915934,
-      "speaker_id": "1384"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025204.json b/conversations/conv_025204.json
deleted file mode 100644
index 21348c85d43b6eab6969413c18d7c0d16f11a7c9..0000000000000000000000000000000000000000
--- a/conversations/conv_025204.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.604043018938199,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4598-2503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4598-2503.flac |",
-      "real_speaker_id": "4598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.407131696294307,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-87997.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.805520290805624,
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-      "overlap": false,
-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-87997.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 96114
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.72551416116281,
-      "end_time": 30.230305151555104,
-      "duration": 5.504790990392294,
-      "start_frame": 395608,
-      "duration_frames": 88076,
-      "overlap": false,
-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 100507
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.807666936085987,
-      "end_time": 32.0,
-      "duration": 1.1923330639140133,
-      "start_frame": 492922,
-      "duration_frames": 19077,
-      "overlap": false,
-      "utterance_id": "6395-87997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-87997.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 165925
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_4.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6395/laugh/0033.wav",
-      "duration": 1.24,
-      "start_time": 8.929620795714367,
-      "speaker_id": "6395"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1809/laugh/0082.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6395/laugh/0121.wav",
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-      "start_time": 21.75753214505292,
-      "speaker_id": "6395"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025205.json b/conversations/conv_025205.json
deleted file mode 100644
index b1175855216d0fb02e8d9e0b9c5c2b53102cfc91..0000000000000000000000000000000000000000
--- a/conversations/conv_025205.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.975917292906289,
-      "duration": 5.975917292906289,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4599-21274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.152709493513422,
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-      "duration": 3.7891339751082747,
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-      "duration_frames": 60626,
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-      "utterance_id": "413-12292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-12292.flac |",
-      "real_speaker_id": "413",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "4599-21274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
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-      "position_frames": 95614
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "speaker_id": "413"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4599/laugh/0113.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "4599"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025208.json b/conversations/conv_025208.json
deleted file mode 100644
index e94980aaf7ebd87e956e56506fa0ff415b32a441..0000000000000000000000000000000000000000
--- a/conversations/conv_025208.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.461977036633896,
-      "duration": 4.461977036633896,
-      "start_frame": 0,
-      "duration_frames": 71391,
-      "overlap": false,
-      "utterance_id": "3879-173592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.600317850015116,
-      "end_time": 10.41958848097774,
-      "duration": 4.819270630962625,
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-      "duration_frames": 77108,
-      "overlap": false,
-      "utterance_id": "3879-173592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 71391
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.697048279786198,
-      "end_time": 14.694940583256002,
-      "duration": 3.997892303469805,
-      "start_frame": 171152,
-      "duration_frames": 63966,
-      "overlap": false,
-      "utterance_id": "1933-146437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.978605653544808,
-      "end_time": 21.76261124833159,
-      "duration": 5.784005594786784,
-      "start_frame": 255657,
-      "duration_frames": 92544,
-      "overlap": false,
-      "utterance_id": "3879-174923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-174923.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.29518403559124,
-      "end_time": 28.197775293684682,
-      "duration": 5.902591258093442,
-      "start_frame": 356722,
-      "duration_frames": 94441,
-      "overlap": false,
-      "utterance_id": "1569-141081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.064685567650326,
-      "end_time": 32.0,
-      "duration": 2.9353144323496743,
-      "start_frame": 465034,
-      "duration_frames": 46965,
-      "overlap": false,
-      "utterance_id": "3879-173592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 148499
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
-      "start_time": 19.344197626500375
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
-      "duration": 0.19419501133786848,
-      "start_time": 9.953515745205902
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
-      "duration": 1.0443083900226757,
-      "start_time": 11.672503823416369
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1933/laugh/0031.wav",
-      "duration": 1.0577935097091902,
-      "start_time": 12.154034675291834,
-      "speaker_id": "1933"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3879/laugh/0053.wav",
-      "duration": 0.5821279821976073,
-      "start_time": 15.253445794905497,
-      "speaker_id": "3879"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3879/cough/0092.wav",
-      "duration": 1.2222054280969987,
-      "start_time": 21.773487724175933,
-      "speaker_id": "3879"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025212.json b/conversations/conv_025212.json
deleted file mode 100644
index 9dd45a85a5c3bfc3d7a5397ee2b6c4e01737890a..0000000000000000000000000000000000000000
--- a/conversations/conv_025212.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.206296276470756,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.942538362400004,
-      "duration": 3.942538362400004,
-      "start_frame": 0,
-      "duration_frames": 63080,
-      "overlap": false,
-      "utterance_id": "4712-60531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-60531.flac |",
-      "real_speaker_id": "4712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.375970006604989,
-      "end_time": 9.683425563684457,
-      "duration": 5.307455557079468,
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-      "overlap": false,
-      "utterance_id": "3490-177641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177641.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.303918681948208,
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-      "duration_frames": 89909,
-      "overlap": false,
-      "utterance_id": "4712-93896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-93896.flac |",
-      "real_speaker_id": "4712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.288391315484514,
-      "end_time": 22.02098562337083,
-      "duration": 5.732594307886317,
-      "start_frame": 260614,
-      "duration_frames": 91721,
-      "overlap": true,
-      "utterance_id": "3490-177641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177641.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 84919
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.112466471620465,
-      "end_time": 29.9372828707355,
-      "duration": 6.824816399115037,
-      "start_frame": 369799,
-      "duration_frames": 109197,
-      "overlap": false,
-      "utterance_id": "4712-93896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-93896.flac |",
-      "real_speaker_id": "4712",
-      "position_frames": 89909
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.332594026866023,
-      "end_time": 31.206296276470756,
-      "duration": 1.873702249604733,
-      "start_frame": 469321,
-      "duration_frames": 29979,
-      "overlap": true,
-      "utterance_id": "3490-177641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177641.flac |",
-      "real_speaker_id": "3490",
-      "position_frames": 176640
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 25.285602585832287,
-      "start_time": 3.4255902590596246
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
-      "duration": 1.2424696949197878,
-      "start_time": 2.3898715663553682
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4712/laugh/0084.wav",
-      "duration": 1.76,
-      "start_time": 0.2967331585089654,
-      "speaker_id": "4712"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4712/laugh/0074.wav",
-      "duration": 1.48,
-      "start_time": 8.737527184045653,
-      "speaker_id": "4712"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4712/laugh/0102.wav",
-      "duration": 1.06,
-      "start_time": 24.12427113221273,
-      "speaker_id": "4712"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4712/cough/0025.wav",
-      "duration": 1.1870928865169759,
-      "start_time": 21.8330955529445,
-      "speaker_id": "4712"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025215.json b/conversations/conv_025215.json
deleted file mode 100644
index 770e22f24629d2ac944f3cdb2772dcc911d4a0fb..0000000000000000000000000000000000000000
--- a/conversations/conv_025215.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.4718852667435116,
-      "start_frame": 0,
-      "duration_frames": 55550,
-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.723241967862219,
-      "end_time": 8.195675832037733,
-      "duration": 3.472433864175515,
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-      "utterance_id": "5424-296464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-296464.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.395853389228277,
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-      "duration": 4.943105752083493,
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-      "utterance_id": "5424-280358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-280358.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.5785302492305,
-      "end_time": 17.372245534853842,
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-      "duration_frames": 60699,
-      "overlap": true,
-      "utterance_id": "1121-176698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1121-176698.flac |",
-      "real_speaker_id": "1121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.369910764336616,
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-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 55550
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.748074066609703,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-280358.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 79089
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.43376783799271,
-      "end_time": 32.0,
-      "duration": 2.5662321620072888,
-      "start_frame": 470940,
-      "duration_frames": 41059,
-      "overlap": false,
-      "utterance_id": "1121-132777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1121-132777.flac |",
-      "real_speaker_id": "1121",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5424/laugh/0134.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1121/laugh/0031.wav",
-      "duration": 1.64,
-      "start_time": 15.719490243542307,
-      "speaker_id": "1121"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1121/laugh/0019.wav",
-      "duration": 1.08,
-      "start_time": 30.876874152327648,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1121/cough/0021.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025224.json b/conversations/conv_025224.json
deleted file mode 100644
index 260668d59d66fcf56a474c1f06e15eebf236416d..0000000000000000000000000000000000000000
--- a/conversations/conv_025224.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.635159681063659,
-      "duration": 4.635159681063659,
-      "start_frame": 0,
-      "duration_frames": 74162,
-      "overlap": false,
-      "utterance_id": "55-121068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121068.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.0110464883248556,
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-      "overlap": false,
-      "utterance_id": "3137-163504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163504.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.00917398929499,
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-      "overlap": false,
-      "utterance_id": "4535-279849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279849.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121068.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 74162
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279852.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.25611012602651,
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-      "utterance_id": "55-121069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.129081060811117,
-      "end_time": 32.0,
-      "duration": 1.8709189391888827,
-      "start_frame": 482065,
-      "duration_frames": 29934,
-      "overlap": false,
-      "utterance_id": "4535-279849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279849.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 64763
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/55/laugh/0013.wav",
-      "duration": 1.24,
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-      "speaker_id": "55"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3137/laugh/0040.wav",
-      "duration": 1.06,
-      "start_time": 10.519168183245727,
-      "speaker_id": "3137"
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-      "event_class": "cough",
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-      "speaker_id": "3137"
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-      "event_class": "laugh",
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-      "duration": 0.9463469540688603,
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-    {
-      "event_class": "cough",
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-      "duration": 0.82,
-      "start_time": 31.18,
-      "speaker_id": "4535"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025228.json b/conversations/conv_025228.json
deleted file mode 100644
index adafa97987f2d80cf3252f36c9f4082a920d3705..0000000000000000000000000000000000000000
--- a/conversations/conv_025228.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.552276121651696,
-      "duration": 6.552276121651696,
-      "start_frame": 0,
-      "duration_frames": 104836,
-      "overlap": false,
-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.826302981729043,
-      "end_time": 10.860384875110492,
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-      "utterance_id": "1815-143381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143381.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.231754857243981,
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-      "duration": 4.803460931558655,
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-      "duration_frames": 76855,
-      "overlap": true,
-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 104836
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.03976021245901,
-      "end_time": 21.479925428109084,
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-      "utterance_id": "1815-143382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143382.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.120097904459,
-      "end_time": 26.98115276229754,
-      "duration": 4.86105485783854,
-      "start_frame": 353921,
-      "duration_frames": 77776,
-      "overlap": false,
-      "utterance_id": "5977-46900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.183039298505452,
-      "end_time": 32.0,
-      "duration": 4.816960701494548,
-      "start_frame": 434928,
-      "duration_frames": 77071,
-      "overlap": false,
-      "utterance_id": "1815-143381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143381.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 64545
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
-      "duration": 1.7180993201461487,
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1815/laugh/0129.wav",
-      "duration": 0.7875704110217897,
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-      "duration": 0.368115463246215,
-      "start_time": 31.527362191544256,
-      "speaker_id": "1815"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025232.json b/conversations/conv_025232.json
deleted file mode 100644
index 308a6145ed43f5ae42bb8c8427769254c5e1e89b..0000000000000000000000000000000000000000
--- a/conversations/conv_025232.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.423739127881161,
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-      "overlap": false,
-      "utterance_id": "5157-47238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47238.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.405436878868185,
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-      "utterance_id": "6529-62556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62556.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
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-      "utterance_id": "5157-47239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47239.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.90551401995319,
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-      "duration_frames": 64720,
-      "overlap": false,
-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.586582236647118,
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-      "duration": 6.050652146912727,
-      "start_frame": 393385,
-      "duration_frames": 96810,
-      "overlap": false,
-      "utterance_id": "5157-47238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47238.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 86779
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.045856200446316,
-      "end_time": 32.0,
-      "duration": 0.9541437995536839,
-      "start_frame": 496733,
-      "duration_frames": 15266,
-      "overlap": false,
-      "utterance_id": "589-146346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
-      "duration": 0.2245124716553288,
-      "start_time": 29.69341952848836
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-      "start_time": 22.23011184803322
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6529/cough/0045.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5157/laugh/0052.wav",
-      "duration": 1.16,
-      "start_time": 13.796228005901053,
-      "speaker_id": "5157"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/589/laugh/0048.wav",
-      "duration": 1.0789588892297048,
-      "start_time": 30.921041110770297,
-      "speaker_id": "589"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025239.json b/conversations/conv_025239.json
deleted file mode 100644
index c6c048895f067ce45e1baedd1e7a6aff84635b72..0000000000000000000000000000000000000000
--- a/conversations/conv_025239.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.89725771593359,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7459013443223017,
-      "duration": 3.7459013443223017,
-      "start_frame": 0,
-      "duration_frames": 59934,
-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.365118497777804,
-      "end_time": 9.681133131102355,
-      "duration": 5.316014633324551,
-      "start_frame": 69841,
-      "duration_frames": 85056,
-      "overlap": true,
-      "utterance_id": "2607-177740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177740.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.533844345180139,
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-      "start_frame": 184541,
-      "duration_frames": 48626,
-      "overlap": false,
-      "utterance_id": "2607-87140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-87140.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.176293240918561,
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-      "duration": 5.625876333450684,
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-      "duration_frames": 90014,
-      "overlap": false,
-      "utterance_id": "3647-180300",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-180300.flac |",
-      "real_speaker_id": "3647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.239860569548036,
-      "end_time": 27.323203605156145,
-      "duration": 6.083343035608111,
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-      "duration_frames": 97333,
-      "overlap": false,
-      "utterance_id": "2607-177740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177740.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 85056
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.81646286961466,
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-      "duration": 4.0807948463189305,
-      "start_frame": 429063,
-      "duration_frames": 65292,
-      "overlap": true,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 59934
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 3.8066567375817755,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/cough/0108.wav",
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/cough/0069.wav",
-      "duration": 0.33992397305371336,
-      "start_time": 11.122952952285267,
-      "speaker_id": "2607"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3647/cough/0156.wav",
-      "duration": 1.12,
-      "start_time": 20.890807477598266,
-      "speaker_id": "3647"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/laugh/0019.wav",
-      "duration": 1.3207087730193496,
-      "start_time": 22.68260985369769,
-      "speaker_id": "2607"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025245.json b/conversations/conv_025245.json
deleted file mode 100644
index ab3665fb84612607c353b881d0951b9e867f82be..0000000000000000000000000000000000000000
--- a/conversations/conv_025245.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.458179350000621,
-      "duration": 6.458179350000621,
-      "start_frame": 0,
-      "duration_frames": 103330,
-      "overlap": false,
-      "utterance_id": "1772-135621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/792-127528.flac |",
-      "real_speaker_id": "792",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "792-127527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/792-127527.flac |",
-      "real_speaker_id": "792",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.168926546985286,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-15787.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.690053562997036,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/792-127527.flac |",
-      "real_speaker_id": "792",
-      "position_frames": 76195
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-  "background_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/792/laugh/0072.wav",
-      "duration": 0.9406641536412712,
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-      "event_class": "cough",
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-      "speaker_id": "792"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025249.json b/conversations/conv_025249.json
deleted file mode 100644
index ebc117f066d0bbe481728ef12338e261322b9789..0000000000000000000000000000000000000000
--- a/conversations/conv_025249.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.076157836064084,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 6.213592644541107,
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-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.196031318865841,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 13.476703997772796,
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-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 99417
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.778028289100956,
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-      "duration_frames": 97603,
-      "overlap": false,
-      "utterance_id": "8421-283462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 91631
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.34347570925691,
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-      "utterance_id": "6687-119383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119383.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/49/laugh/0085.wav",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "8421"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025253.json b/conversations/conv_025253.json
deleted file mode 100644
index 1cc218126b22ac44feadcd44eff41f9f4dde9c06..0000000000000000000000000000000000000000
--- a/conversations/conv_025253.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.113418880321348,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7636.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7636.flac |",
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-      "position_frames": 71439
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-78186.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.44605145543309,
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-      "utterance_id": "4345-7636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7636.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 176075
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4345-7635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025265.json b/conversations/conv_025265.json
deleted file mode 100644
index 1d3bdeb9fce3774f1a74bcc0e5426b7c52259258..0000000000000000000000000000000000000000
--- a/conversations/conv_025265.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6954-76579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76579.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.036996240178199,
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-      "duration_frames": 59929,
-      "overlap": false,
-      "utterance_id": "2769-169619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2769-169619.flac |",
-      "real_speaker_id": "2769",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.229271126671215,
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-      "utterance_id": "6954-76579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76579.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 85983
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8148-3956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8148-3956.flac |",
-      "real_speaker_id": "8148",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76579.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 139381
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "duration": 2.4905301789809755,
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-      "utterance_id": "6954-76168",
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-      "position_frames": 0
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-  "foreground_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2769/laugh/0118.wav",
-      "duration": 0.5805327995224775,
-      "start_time": 25.68077128210225,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "6954"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025269.json b/conversations/conv_025269.json
deleted file mode 100644
index 57e4504a44978d873cc4e2b4d37b9d6318777553..0000000000000000000000000000000000000000
--- a/conversations/conv_025269.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.910424786083578,
-      "duration": 4.910424786083578,
-      "start_frame": 0,
-      "duration_frames": 78566,
-      "overlap": false,
-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.676344361612627,
-      "end_time": 10.908754868659354,
-      "duration": 5.232410507046727,
-      "start_frame": 90821,
-      "duration_frames": 83718,
-      "overlap": false,
-      "utterance_id": "2504-154288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2504-154288.flac |",
-      "real_speaker_id": "2504",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.217796045813156,
-      "end_time": 17.564900017864062,
-      "duration": 6.347103972050904,
-      "start_frame": 179484,
-      "duration_frames": 101553,
-      "overlap": false,
-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 78566
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.350824672993017,
-      "end_time": 23.842600481460863,
-      "duration": 5.491775808467848,
-      "start_frame": 293613,
-      "duration_frames": 87868,
-      "overlap": false,
-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 180119
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.351768485225517,
-      "end_time": 29.55335338105597,
-      "duration": 4.201584895830452,
-      "start_frame": 405628,
-      "duration_frames": 67225,
-      "overlap": false,
-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 267987
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.083804743544107,
-      "end_time": 32.0,
-      "duration": 1.916195256455893,
-      "start_frame": 481340,
-      "duration_frames": 30659,
-      "overlap": false,
-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 16.487779712816522,
-      "start_time": 6.057471675325013
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
-      "duration": 2.7157529965934355,
-      "start_time": 25.721257253933068
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7522/laugh/0043.wav",
-      "duration": 0.6474056437079019,
-      "start_time": 5.03066609710894,
-      "speaker_id": "7522"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2504/laugh/0039.wav",
-      "duration": 1.2857641101663444,
-      "start_time": 6.619958381412144,
-      "speaker_id": "2504"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7522/cough/0064.wav",
-      "duration": 1.0524951197914094,
-      "start_time": 17.64379293477833,
-      "speaker_id": "7522"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7522/laugh/0002.wav",
-      "duration": 1.18,
-      "start_time": 24.106620152132102,
-      "speaker_id": "7522"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7522/laugh/0054.wav",
-      "duration": 0.5167155747680838,
-      "start_time": 29.806094781775524,
-      "speaker_id": "7522"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025273.json b/conversations/conv_025273.json
deleted file mode 100644
index 7154c39c524467fae23b5e973eb32b5102615224..0000000000000000000000000000000000000000
--- a/conversations/conv_025273.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.112392717039054,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.826093747621281,
-      "duration": 4.826093747621281,
-      "start_frame": 0,
-      "duration_frames": 77217,
-      "overlap": false,
-      "utterance_id": "3686-171134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171134.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.982085711833187,
-      "end_time": 10.314343118077382,
-      "duration": 5.332257406244195,
-      "start_frame": 79713,
-      "duration_frames": 85316,
-      "overlap": false,
-      "utterance_id": "2992-164101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164101.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.12478189705414,
-      "end_time": 18.086490932155556,
-      "duration": 6.961709035101414,
-      "start_frame": 177996,
-      "duration_frames": 111387,
-      "overlap": false,
-      "utterance_id": "4773-25910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-25910.flac |",
-      "real_speaker_id": "4773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.845666393436435,
-      "end_time": 24.469222320072465,
-      "duration": 5.62355592663603,
-      "start_frame": 301530,
-      "duration_frames": 89976,
-      "overlap": false,
-      "utterance_id": "2992-164100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164100.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.2935636404393,
-      "end_time": 30.112392717039054,
-      "duration": 5.818829076599756,
-      "start_frame": 388697,
-      "duration_frames": 93101,
-      "overlap": true,
-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
-      "duration": 0.20596371882086167,
-      "start_time": 5.070630539263468
-    },
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_0.wav",
-      "duration": 3.053532146551712,
-      "start_time": 10.465005732044277
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2992/laugh/0112.wav",
-      "duration": 1.04,
-      "start_time": 22.047483398961223,
-      "speaker_id": "2992"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025278.json b/conversations/conv_025278.json
deleted file mode 100644
index d94054e06a01bc848838b030aeb3a343c6d043d4..0000000000000000000000000000000000000000
--- a/conversations/conv_025278.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.946998690716844,
-      "duration": 5.946998690716844,
-      "start_frame": 0,
-      "duration_frames": 95151,
-      "overlap": false,
-      "utterance_id": "8470-279797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.436963771403979,
-      "end_time": 10.484577681921108,
-      "duration": 4.0476139105171285,
-      "start_frame": 102991,
-      "duration_frames": 64761,
-      "overlap": false,
-      "utterance_id": "6437-66172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6437-66172.flac |",
-      "real_speaker_id": "6437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.947967311261067,
-      "end_time": 14.77761919934612,
-      "duration": 4.829651888085052,
-      "start_frame": 159167,
-      "duration_frames": 77274,
-      "overlap": true,
-      "utterance_id": "6437-66173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6437-66173.flac |",
-      "real_speaker_id": "6437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.186087422299437,
-      "end_time": 22.02981275373177,
-      "duration": 5.843725331432332,
-      "start_frame": 258977,
-      "duration_frames": 93499,
-      "overlap": false,
-      "utterance_id": "1633-141584",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-141584.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6437-66172.flac |",
-      "real_speaker_id": "6437",
-      "position_frames": 64761
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.87451529541045,
-      "end_time": 32.0,
-      "duration": 2.1254847045895495,
-      "start_frame": 477992,
-      "duration_frames": 34007,
-      "overlap": false,
-      "utterance_id": "1633-141580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-141580.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-      "start_time": 25.573203951752067
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6437/laugh/0085.wav",
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-      "start_time": 4.986031316978991,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6437/cough/0042.wav",
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-      "start_time": 7.536671252615512,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6437/laugh/0081.wav",
-      "duration": 1.08,
-      "start_time": 14.840864732452886,
-      "speaker_id": "6437"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1633/laugh/0053.wav",
-      "duration": 0.6603251658551261,
-      "start_time": 15.419177005117058,
-      "speaker_id": "1633"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1633/laugh/0077.wav",
-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "1633"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025281.json b/conversations/conv_025281.json
deleted file mode 100644
index 69fc1b620f1814f429a773d9794cb301e02d6a58..0000000000000000000000000000000000000000
--- a/conversations/conv_025281.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.180894873617877,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.427998374797318,
-      "duration": 5.427998374797318,
-      "start_frame": 0,
-      "duration_frames": 86847,
-      "overlap": false,
-      "utterance_id": "4742-74181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.115026479733832,
-      "end_time": 11.69354673880411,
-      "duration": 6.578520259070279,
-      "start_frame": 81840,
-      "duration_frames": 105256,
-      "overlap": true,
-      "utterance_id": "4915-113765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-113765.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.804016109473633,
-      "end_time": 19.13168345798663,
-      "duration": 6.327667348512996,
-      "start_frame": 204864,
-      "duration_frames": 101242,
-      "overlap": false,
-      "utterance_id": "1754-140639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-140639.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.85370013204205,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "4915",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4915-113765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-113765.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 105256
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4742/cough/0022.wav",
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-      "start_time": 5.613481603992398,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1754"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4742/laugh/0069.wav",
-      "duration": 1.9423759933020157,
-      "start_time": 24.73416659085754,
-      "speaker_id": "4742"
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-    {
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-      "start_time": 24.69035340967397,
-      "speaker_id": "4742"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025286.json b/conversations/conv_025286.json
deleted file mode 100644
index 046c5e12586480687f172f24a582b684dba4a73c..0000000000000000000000000000000000000000
--- a/conversations/conv_025286.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.583255312509619,
-      "duration": 5.583255312509619,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.880280472449209,
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-      "duration": 5.928067849419395,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
-      "real_speaker_id": "5036",
-      "position_frames": 0
-    },
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-      "start_time": 12.087123840826877,
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-      "overlap": false,
-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 89332
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.47489988343754,
-      "end_time": 24.09209412882489,
-      "duration": 5.617194245387348,
-      "start_frame": 295598,
-      "duration_frames": 89875,
-      "overlap": false,
-      "utterance_id": "5036-18451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
-      "real_speaker_id": "5036",
-      "position_frames": 94849
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.7693456011721,
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-      "duration": 4.726866170626064,
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-      "overlap": false,
-      "utterance_id": "5894-64100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64100.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.11005953872886,
-      "end_time": 32.0,
-      "duration": 1.8899404612711415,
-      "start_frame": 481760,
-      "duration_frames": 30239,
-      "overlap": false,
-      "utterance_id": "5036-18450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18450.flac |",
-      "real_speaker_id": "5036",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "duration": 0.8856630786837008,
-      "start_time": 16.420699620606136,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.52,
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-    {
-      "event_class": "cough",
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-      "start_time": 24.197184916540518,
-      "speaker_id": "5894"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025290.json b/conversations/conv_025290.json
deleted file mode 100644
index da09d2d252772fa93ae83b235dd8aa1887186492..0000000000000000000000000000000000000000
--- a/conversations/conv_025290.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.567949923561578,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8197-278199",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278199.flac |",
-      "real_speaker_id": "8197",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13260.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 83137
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.000154617757012,
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-      "utterance_id": "3947-13262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13262.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.12,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
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-      "duration": 1.1,
-      "start_time": 25.733341875452524,
-      "speaker_id": "3947"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025297.json b/conversations/conv_025297.json
deleted file mode 100644
index 90225b4b84550f32a342a4f8e4499b1400b83a64..0000000000000000000000000000000000000000
--- a/conversations/conv_025297.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-35680.flac |",
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-      "real_speaker_id": "5606",
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-      "real_speaker_id": "5606",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025300.json b/conversations/conv_025300.json
deleted file mode 100644
index 0edc88e6342b31bddd795acfc486149c3c804f57..0000000000000000000000000000000000000000
--- a/conversations/conv_025300.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-183988.flac |",
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-      "position_frames": 64865
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_025316.json b/conversations/conv_025316.json
deleted file mode 100644
index 7f08b81434da948d0cd2e838c1dc2d2b5cb3c77f..0000000000000000000000000000000000000000
--- a/conversations/conv_025316.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5588-39648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.136907906672729,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-68192.flac |",
-      "real_speaker_id": "5588",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_025317.json b/conversations/conv_025317.json
deleted file mode 100644
index 1758c7bb699a2a8fb05f49011e9690b5077d5cd5..0000000000000000000000000000000000000000
--- a/conversations/conv_025317.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6459-70120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70120.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "real_speaker_id": "7228",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 25.606016722526768,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3356-132542.flac |",
-      "real_speaker_id": "3356",
-      "position_frames": 63121
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3356/laugh/0063.wav",
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-      "speaker_id": "7228"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025320.json b/conversations/conv_025320.json
deleted file mode 100644
index d5b1fbe38eabf3222f2dedd79e9d22f172b1f7b7..0000000000000000000000000000000000000000
--- a/conversations/conv_025320.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "7946",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_025336.json b/conversations/conv_025336.json
deleted file mode 100644
index 2921bd88a4eecb24a0826e1d4a318ea1f0cab9a4..0000000000000000000000000000000000000000
--- a/conversations/conv_025336.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.07376803465155,
-      "duration": 6.07376803465155,
-      "start_frame": 0,
-      "duration_frames": 97180,
-      "overlap": false,
-      "utterance_id": "6741-79958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-79958.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.742529301372505,
-      "end_time": 12.051803744734016,
-      "duration": 5.30927444336151,
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-      "duration_frames": 84948,
-      "overlap": false,
-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.41996610214045,
-      "end_time": 18.87631219730453,
-      "duration": 6.456346095164079,
-      "start_frame": 198719,
-      "duration_frames": 103301,
-      "overlap": false,
-      "utterance_id": "2090-147030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2090-147030.flac |",
-      "real_speaker_id": "2090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.074402422653545,
-      "end_time": 22.607170241392474,
-      "duration": 3.532767818738928,
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-      "duration_frames": 56524,
-      "overlap": false,
-      "utterance_id": "6741-79958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-79958.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 97180
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.20849173266314,
-      "end_time": 29.555710860928244,
-      "duration": 6.347219128265104,
-      "start_frame": 371335,
-      "duration_frames": 101555,
-      "overlap": false,
-      "utterance_id": "6476-57446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-57446.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.292281325122993,
-      "end_time": 32.0,
-      "duration": 1.7077186748770075,
-      "start_frame": 484676,
-      "duration_frames": 27323,
-      "overlap": false,
-      "utterance_id": "2090-147030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2090-147030.flac |",
-      "real_speaker_id": "2090",
-      "position_frames": 103301
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
-      "duration": 0.41732426303854875,
-      "start_time": 29.914730703404885
-    },
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
-      "duration": 1.6432985052187483,
-      "start_time": 27.09610870219991
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6476/cough/0083.wav",
-      "duration": 0.3423222710280788,
-      "start_time": 22.72974988948916,
-      "speaker_id": "6476"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2090/cough/0067.wav",
-      "duration": 0.6728072462600759,
-      "start_time": 29.60083442443283,
-      "speaker_id": "2090"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025340.json b/conversations/conv_025340.json
deleted file mode 100644
index 3a15a9a37161846e2194c8e65ac1124fa70b3fb7..0000000000000000000000000000000000000000
--- a/conversations/conv_025340.json
+++ /dev/null
@@ -1,180 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.137223514874086,
-      "duration": 6.137223514874086,
-      "start_frame": 0,
-      "duration_frames": 98195,
-      "overlap": false,
-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.330507855128797,
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-      "duration_frames": 68915,
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-      "utterance_id": "3857-182317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182317.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.490642775145627,
-      "end_time": 15.315068643903011,
-      "duration": 3.824425868757384,
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-      "duration_frames": 61190,
-      "overlap": false,
-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 98195
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.54927485198457,
-      "end_time": 19.382702745350176,
-      "duration": 3.833427893365605,
-      "start_frame": 248788,
-      "duration_frames": 61334,
-      "overlap": false,
-      "utterance_id": "3857-182315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182315.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.735957241119387,
-      "end_time": 23.413274378025726,
-      "duration": 3.67731713690634,
-      "start_frame": 315775,
-      "duration_frames": 58837,
-      "overlap": false,
-      "utterance_id": "3857-180923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.470118705610624,
-      "end_time": 28.298180950926856,
-      "duration": 3.8280622453162327,
-      "start_frame": 391521,
-      "duration_frames": 61248,
-      "overlap": false,
-      "utterance_id": "6510-62558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62558.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.917754717239752,
-      "end_time": 32.0,
-      "duration": 3.0822452827602476,
-      "start_frame": 462684,
-      "duration_frames": 49315,
-      "overlap": false,
-      "utterance_id": "3857-182317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182317.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 68915
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
-      "duration": 14.690997732426304,
-      "start_time": 14.810631130467272
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
-      "duration": 1.0652834467120182,
-      "start_time": 22.572769929249375
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6510/laugh/0109.wav",
-      "duration": 1.250229660101938,
-      "start_time": 0,
-      "speaker_id": "6510"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6510/cough/0102.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "6510"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3857/cough/0048.wav",
-      "duration": 1.08,
-      "start_time": 10.826153964257381,
-      "speaker_id": "3857"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3857/laugh/0007.wav",
-      "duration": 1.24,
-      "start_time": 19.67473379217628,
-      "speaker_id": "3857"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3857/laugh/0079.wav",
-      "duration": 0.84,
-      "start_time": 19.884964783979452,
-      "speaker_id": "3857"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3857/cough/0096.wav",
-      "duration": 1.12,
-      "start_time": 18.450015767696872,
-      "speaker_id": "3857"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6510/laugh/0045.wav",
-      "duration": 1.4426803586354384,
-      "start_time": 28.341706567627373,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3857/laugh/0107.wav",
-      "duration": 1.045976427204191,
-      "start_time": 30.688025163223838,
-      "speaker_id": "3857"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025341.json b/conversations/conv_025341.json
deleted file mode 100644
index 53ea3feb0425e49cd1766c7b4f4068899e306c0c..0000000000000000000000000000000000000000
--- a/conversations/conv_025341.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.350054154682473,
-      "duration": 4.350054154682473,
-      "start_frame": 0,
-      "duration_frames": 69600,
-      "overlap": false,
-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.3007635826856125,
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-      "duration": 6.910686869266939,
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-      "duration_frames": 110570,
-      "overlap": true,
-      "utterance_id": "8447-286248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286248.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "end_time": 18.68714474383856,
-      "duration": 6.66409071076103,
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-      "duration_frames": 106625,
-      "overlap": false,
-      "utterance_id": "3825-134160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.874021333358613,
-      "end_time": 23.57257822993621,
-      "duration": 5.698556896577597,
-      "start_frame": 285984,
-      "duration_frames": 91176,
-      "overlap": true,
-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.420801920450792,
-      "end_time": 29.12895233717126,
-      "duration": 4.708150416720467,
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-      "duration_frames": 75330,
-      "overlap": true,
-      "utterance_id": "8447-284448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-284448.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.909521075217658,
-      "end_time": 32.0,
-      "duration": 1.0904789247823423,
-      "start_frame": 494552,
-      "duration_frames": 17447,
-      "overlap": false,
-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 91176
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
-      "duration": 0.7219727891156462,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
-      "duration": 0.9133560090702948,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3825/cough/0014.wav",
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-      "start_time": 1.7506312020865462,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6476/laugh/0009.wav",
-      "duration": 1.04,
-      "start_time": 21.16653890341275,
-      "speaker_id": "6476"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8447/cough/0093.wav",
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-      "start_time": 29.26052501042718,
-      "speaker_id": "8447"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6476/laugh/0083.wav",
-      "duration": 1.52,
-      "start_time": 29.22602600841544,
-      "speaker_id": "6476"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025350.json b/conversations/conv_025350.json
deleted file mode 100644
index 7a79ee830ae01e3bfc92697398f5e6dad6aedb85..0000000000000000000000000000000000000000
--- a/conversations/conv_025350.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.75368989553932,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.227056979255989,
-      "duration": 4.227056979255989,
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-      "duration_frames": 67632,
-      "overlap": false,
-      "utterance_id": "1859-145700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145700.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.471122657203293,
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-      "utterance_id": "5076-61727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-61727.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7480-93348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7480-93348.flac |",
-      "real_speaker_id": "7480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.91938879933698,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.700235670435422,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-61727.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
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-  "background_events": [],
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-      "speaker_id": "1859"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025357.json b/conversations/conv_025357.json
deleted file mode 100644
index 6f7faee722086337967646d322c34101fc817423..0000000000000000000000000000000000000000
--- a/conversations/conv_025357.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.2825302083357,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5417.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-117095.flac |",
-      "real_speaker_id": "7967",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295465.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 0
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-      "utterance_id": "3448-5416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5416.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.580568364900394,
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-      "utterance_id": "3448-5417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5417.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 66763
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295463.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025361.json b/conversations/conv_025361.json
deleted file mode 100644
index d9fc6fd62d2ce63ab774303dfa12f2bafde43aed..0000000000000000000000000000000000000000
--- a/conversations/conv_025361.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.049645342678318,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285236.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "8430",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_025377.json b/conversations/conv_025377.json
deleted file mode 100644
index 24913c95c2d46d2dfcdf3607073ef7026f72b8c1..0000000000000000000000000000000000000000
--- a/conversations/conv_025377.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279592.flac |",
-      "real_speaker_id": "8164",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_025382.json b/conversations/conv_025382.json
deleted file mode 100644
index f5ed2a24bcf51808ce306674fad1a3605c25e44c..0000000000000000000000000000000000000000
--- a/conversations/conv_025382.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-127742.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-131411.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 60008
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-      "duration": 1.0,
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-      "speaker_id": "5688"
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-      "event_class": "laugh",
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-      "duration": 1.52,
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-      "speaker_id": "1261"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_025385.json b/conversations/conv_025385.json
deleted file mode 100644
index de9893c378fb6f9618282ab0ff4c58ae0f1e4993..0000000000000000000000000000000000000000
--- a/conversations/conv_025385.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120458.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
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-      "utterance_id": "8307-120457",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120457.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.989260471171335,
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-      "utterance_id": "7215-91630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 55491
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-126302.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_025393.json b/conversations/conv_025393.json
deleted file mode 100644
index 1edc51a6ccdb32db8d0f3cbe423e956d6d1f03d3..0000000000000000000000000000000000000000
--- a/conversations/conv_025393.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "real_speaker_id": "4205",
-      "position_frames": 0
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-      "real_speaker_id": "1266",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 66309
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1266-136523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-136523.flac |",
-      "real_speaker_id": "1266",
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-  "background_events": [
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-      "speaker_id": "1266"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025394.json b/conversations/conv_025394.json
deleted file mode 100644
index 42c69240b5bbf65ec55ae09f62a5d8e45970d257..0000000000000000000000000000000000000000
--- a/conversations/conv_025394.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1553-140047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140047.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
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-      "position_frames": 85325
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1553",
-      "position_frames": 163564
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "position_frames": 95936
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_025398.json b/conversations/conv_025398.json
deleted file mode 100644
index 95b352dc50dca84398e3ec735e6b61820fcd4950..0000000000000000000000000000000000000000
--- a/conversations/conv_025398.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.618630950102176,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "utterance_id": "4748-25901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-25901.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91906.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.638559427512476,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172357.flac |",
-      "real_speaker_id": "460",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.056774711228055,
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-      "utterance_id": "4748-25901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-25901.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 156608
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-  "background_events": [
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 0.9282236453960162,
-      "start_time": 24.535237045456817,
-      "speaker_id": "460"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025402.json b/conversations/conv_025402.json
deleted file mode 100644
index f53b6682590e2d77b2847c816a7f06efce5c37e1..0000000000000000000000000000000000000000
--- a/conversations/conv_025402.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8726046946683828,
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-      "overlap": false,
-      "utterance_id": "7608-115034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.453712446921194,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126336.flac |",
-      "real_speaker_id": "480",
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.175172200176373,
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-      "overlap": false,
-      "utterance_id": "331-132019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-132019.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.312475950204371,
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-      "duration": 6.036484514807616,
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-      "overlap": true,
-      "utterance_id": "480-126292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126292.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.791517302976743,
-      "end_time": 28.434258543804056,
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-      "utterance_id": "480-126336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126336.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 72938
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.342104369309176,
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-      "duration": 2.657895630690824,
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-      "utterance_id": "331-132019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-132019.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 95956
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/480/laugh/0007.wav",
-      "duration": 0.732731178110466,
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-      "speaker_id": "480"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025405.json b/conversations/conv_025405.json
deleted file mode 100644
index 0f27aa72b3e3746c921d09c26fa126e609f26879..0000000000000000000000000000000000000000
--- a/conversations/conv_025405.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1844-144486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.8415208366517515,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275209.flac |",
-      "real_speaker_id": "8123",
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-      "utterance_id": "7699-105389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105389.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275209.flac |",
-      "real_speaker_id": "8123",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7699-105399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105399.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 20.59980971977615,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 70306
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 26.791828719145364,
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-      "utterance_id": "8123-275209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275209.flac |",
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8123/laugh/0012.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7699/laugh/0021.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1844/cough/0008.wav",
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-      "start_time": 23.657179820443503,
-      "speaker_id": "1844"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025413.json b/conversations/conv_025413.json
deleted file mode 100644
index 659dcaf3a62831565746612ad8dd8f5062a71a30..0000000000000000000000000000000000000000
--- a/conversations/conv_025413.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.962708731837065,
-      "duration": 5.962708731837065,
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-      "overlap": false,
-      "utterance_id": "1414-130538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
-      "real_speaker_id": "1414",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.5510449819955365,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.833580719622919,
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-      "duration": 3.3640462698666136,
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-      "overlap": false,
-      "utterance_id": "8643-298549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-298549.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 79468
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.98459346430176,
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-      "utterance_id": "1414-130538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
-      "real_speaker_id": "1414",
-      "position_frames": 95403
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.647943981491228,
-      "end_time": 32.0,
-      "duration": 3.3520560185087724,
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-      "duration_frames": 53632,
-      "overlap": false,
-      "utterance_id": "4519-6171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 160104
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.715495650405993,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1414/laugh/0027.wav",
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-      "start_time": 0,
-      "speaker_id": "1414"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8643/cough/0037.wav",
-      "duration": 0.6813893678087217,
-      "start_time": 15.30694790843659,
-      "speaker_id": "8643"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025414.json b/conversations/conv_025414.json
deleted file mode 100644
index 998dfc32f840577bb1ea025b025dac16064d38ed..0000000000000000000000000000000000000000
--- a/conversations/conv_025414.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.793646054150358,
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-      "start_frame": 0,
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-      "utterance_id": "2411-132530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132530.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6539-66391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66391.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66420.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 19.159457723466446,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-84349.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6539-66391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66391.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 77744
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-86708.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-      "event_class": "laugh",
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-      "duration": 0.84,
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-}
\ No newline at end of file
diff --git a/conversations/conv_025418.json b/conversations/conv_025418.json
deleted file mode 100644
index b351914a62e7b4a83ce44e6a43e18aafc4ba11f5..0000000000000000000000000000000000000000
--- a/conversations/conv_025418.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.31913235365089,
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-      "utterance_id": "3699-47246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-47246.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.077977437956784,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
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-      "speaker_id": 2,
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-      "utterance_id": "3699-19402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-19402.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8329-279775.flac |",
-      "real_speaker_id": "8329",
-      "position_frames": 75571
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025422.json b/conversations/conv_025422.json
deleted file mode 100644
index 76281aa139da05a2fcc3d14ab8f2f04e7597cb2b..0000000000000000000000000000000000000000
--- a/conversations/conv_025422.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1414-130538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
-      "real_speaker_id": "1414",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-122444.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-122444.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 84928
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-    {
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-      "overlap": false,
-      "utterance_id": "8803-296082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296082.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-121089.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1414-130538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
-      "real_speaker_id": "1414",
-      "position_frames": 75710
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.2249082977991,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-122444.flac |",
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-      "position_frames": 153393
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
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-      "event_class": "Frying",
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-      "duration": 0.8436971820624375,
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-      "speaker_id": "65"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/65/laugh/0033.wav",
-      "duration": 1.44,
-      "start_time": 30.306213048048665,
-      "speaker_id": "65"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025434.json b/conversations/conv_025434.json
deleted file mode 100644
index edd9220b0fbd25be6f9675c286631ffa77407efd..0000000000000000000000000000000000000000
--- a/conversations/conv_025434.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "start_time": 0.0,
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-      "utterance_id": "8797-294123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8797-294123.flac |",
-      "real_speaker_id": "8797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.019566816906823,
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-      "utterance_id": "3807-4955",
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-      "real_speaker_id": "3807",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8797-294123.flac |",
-      "real_speaker_id": "8797",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "utterance_id": "3807-4923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4923.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 24.120434489271506,
-      "speaker_id": "8797"
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025438.json b/conversations/conv_025438.json
deleted file mode 100644
index c80ee4bcf96cde86f5debbfe651f22ea807dafe3..0000000000000000000000000000000000000000
--- a/conversations/conv_025438.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.328492918300388,
-      "duration": 4.328492918300388,
-      "start_frame": 0,
-      "duration_frames": 69255,
-      "overlap": false,
-      "utterance_id": "4085-11517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11517.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.148461585192125,
-      "end_time": 11.257386598762437,
-      "duration": 6.108925013570312,
-      "start_frame": 82375,
-      "duration_frames": 97742,
-      "overlap": false,
-      "utterance_id": "3926-174988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-174988.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.74346046213206,
-      "end_time": 18.524920612221653,
-      "duration": 6.781460150089593,
-      "start_frame": 187895,
-      "duration_frames": 108503,
-      "overlap": false,
-      "utterance_id": "4085-11516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11516.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.443530535438825,
-      "end_time": 23.35727596080725,
-      "duration": 3.9137454253684245,
-      "start_frame": 311096,
-      "duration_frames": 62619,
-      "overlap": false,
-      "utterance_id": "4085-11517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11517.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 69255
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.308016928899963,
-      "end_time": 28.518074786051336,
-      "duration": 4.210057857151374,
-      "start_frame": 388928,
-      "duration_frames": 67360,
-      "overlap": false,
-      "utterance_id": "3926-891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-891.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.24138660110944,
-      "end_time": 32.0,
-      "duration": 2.75861339889056,
-      "start_frame": 467862,
-      "duration_frames": 44137,
-      "overlap": false,
-      "utterance_id": "4085-11515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4085-11515.flac |",
-      "real_speaker_id": "4085",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 3.972861459141226,
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-      "start_time": 21.580603547724966
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4085/laugh/0024.wav",
-      "duration": 0.7360030932989143,
-      "start_time": 10.754183472715079,
-      "speaker_id": "4085"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3926/laugh/0085.wav",
-      "duration": 1.12,
-      "start_time": 27.139490809751763,
-      "speaker_id": "3926"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025439.json b/conversations/conv_025439.json
deleted file mode 100644
index eefa96d38f443a11d5e753d13b305840792bd1b0..0000000000000000000000000000000000000000
--- a/conversations/conv_025439.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.607717335827907,
-      "duration": 3.607717335827907,
-      "start_frame": 0,
-      "duration_frames": 57723,
-      "overlap": false,
-      "utterance_id": "6529-62556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62556.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.7619845320573213,
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-      "duration": 6.372835901892678,
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-      "duration_frames": 101965,
-      "overlap": false,
-      "utterance_id": "8156-104485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8156-104485.flac |",
-      "real_speaker_id": "8156",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.998800609944393,
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-      "overlap": false,
-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.619567659401518,
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-      "overlap": false,
-      "utterance_id": "8156-104526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8156-104526.flac |",
-      "real_speaker_id": "8156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.71724564754837,
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-      "duration": 6.633774885443726,
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-      "duration_frames": 106140,
-      "overlap": true,
-      "utterance_id": "3977-185457",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185457.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.52411664586256,
-      "end_time": 32.0,
-      "duration": 1.4758833541374408,
-      "start_frame": 488385,
-      "duration_frames": 23614,
-      "overlap": false,
-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 63332
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-      "duration": 0.7759410430839002,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 3.7275325828472416,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6529/laugh/0051.wav",
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-      "start_time": 31.458145940068025,
-      "speaker_id": "6529"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025442.json b/conversations/conv_025442.json
deleted file mode 100644
index 06098c7a662bccbc5eb7bad92b6a4ed178062c05..0000000000000000000000000000000000000000
--- a/conversations/conv_025442.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "1851-151817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
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-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1851",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "6627",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025443.json b/conversations/conv_025443.json
deleted file mode 100644
index 98366b3d8ebace4d3cdf79877d3564e70bf801d9..0000000000000000000000000000000000000000
--- a/conversations/conv_025443.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.32983442880685,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7318-96151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7318/laugh/0096.wav",
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-      "event_class": "laugh",
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-      "duration": 1.1846922541348341,
-      "start_time": 29.41208444665011,
-      "speaker_id": "7318"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025444.json b/conversations/conv_025444.json
deleted file mode 100644
index 3281ee6bbdf0453090ccbf0f3f44806ac41529e3..0000000000000000000000000000000000000000
--- a/conversations/conv_025444.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.748627905289617,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.777401373978921,
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-      "overlap": false,
-      "utterance_id": "77-121526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121526.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.183211114620105,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188161.flac |",
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-      "utterance_id": "4273-188159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188159.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "77-121526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121526.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 92438
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.314468568115295,
-      "end_time": 25.820327330142177,
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-      "utterance_id": "4273-188164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188164.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.034411360730928,
-      "end_time": 31.748627905289617,
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-      "overlap": false,
-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "duration": 0.3127040343372383,
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-      "speaker_id": "4273"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025452.json b/conversations/conv_025452.json
deleted file mode 100644
index a5e867520ec4cfbb67a3937bd7692d7d6acaf8ce..0000000000000000000000000000000000000000
--- a/conversations/conv_025452.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6388-64974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6388-64974.flac |",
-      "real_speaker_id": "6388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.17710531981138,
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-      "overlap": false,
-      "utterance_id": "1638-84448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84448.flac |",
-      "real_speaker_id": "1638",
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-      "overlap": false,
-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6388-64974.flac |",
-      "real_speaker_id": "6388",
-      "position_frames": 110206
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.130790879474,
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-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 66896
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.51519186632101,
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-      "duration": 3.484808133678989,
-      "start_frame": 456243,
-      "duration_frames": 55756,
-      "overlap": false,
-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 146918
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.904054573893379,
-      "start_time": 21.727520127555703
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6388/laugh/0066.wav",
-      "duration": 1.64,
-      "start_time": 3.8057040754575198,
-      "speaker_id": "6388"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1638/laugh/0069.wav",
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-      "speaker_id": "1638"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2971/laugh/0026.wav",
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-      "speaker_id": "2971"
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-    {
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-      "duration": 0.8886009817013723,
-      "start_time": 21.448965000122044,
-      "speaker_id": "6388"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2971/laugh/0102.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2971/cough/0049.wav",
-      "duration": 1.0,
-      "start_time": 28.158698154357808,
-      "speaker_id": "2971"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025455.json b/conversations/conv_025455.json
deleted file mode 100644
index 8a029d56507b2809019edd6660559437bbb2ee43..0000000000000000000000000000000000000000
--- a/conversations/conv_025455.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.264212307947452,
-      "duration": 5.264212307947452,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3314-159392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-159392.flac |",
-      "real_speaker_id": "3314",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.722503735588314,
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-      "utterance_id": "8543-280375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
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-      "utterance_id": "4344-8892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4344-8892.flac |",
-      "real_speaker_id": "4344",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.449627781578446,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 108669
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4344-22232",
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-      "real_speaker_id": "4344",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.504239307958557,
-      "end_time": 32.0,
-      "duration": 3.4957606920414435,
-      "start_frame": 456067,
-      "duration_frames": 55932,
-      "overlap": false,
-      "utterance_id": "8543-280376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280376.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8543/laugh/0020.wav",
-      "duration": 1.4,
-      "start_time": 20.91418480187852,
-      "speaker_id": "8543"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8543/cough/0071.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4344/laugh/0133.wav",
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-      "start_time": 24.515411019327594,
-      "speaker_id": "4344"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025459.json b/conversations/conv_025459.json
deleted file mode 100644
index 826714ada29b90981baeb0895e5b71ec7ff3b4bf..0000000000000000000000000000000000000000
--- a/conversations/conv_025459.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5390-30102",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "4955",
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-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "1737-142396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-142396.flac |",
-      "real_speaker_id": "1737",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
-      "real_speaker_id": "5390",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-24512.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5390/laugh/0111.wav",
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-      "speaker_id": "5390"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025463.json b/conversations/conv_025463.json
deleted file mode 100644
index e292b29d65bdd8ff72d69e67bdbc169b2a371859..0000000000000000000000000000000000000000
--- a/conversations/conv_025463.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.870967261253956,
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-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.302237666840838,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 77935
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7079-2333",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-2333.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.439116708765212,
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-      "overlap": false,
-      "utterance_id": "834-130870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130870.flac |",
-      "real_speaker_id": "834",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.16817265552193,
-      "end_time": 27.76059869826968,
-      "duration": 4.592426042747749,
-      "start_frame": 370690,
-      "duration_frames": 73478,
-      "overlap": false,
-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 170207
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.266488680392733,
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-      "duration": 3.733511319607267,
-      "start_frame": 452263,
-      "duration_frames": 59736,
-      "overlap": false,
-      "utterance_id": "7079-2343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-2343.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-      "duration": 1.367851986998738,
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-      "speaker_id": "953"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/953/laugh/0080.wav",
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-      "duration": 1.2620033345331019,
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\ No newline at end of file
diff --git a/conversations/conv_025475.json b/conversations/conv_025475.json
deleted file mode 100644
index 1ea31df8e3dd04df7d4f4dcb3bc2bb173916ed84..0000000000000000000000000000000000000000
--- a/conversations/conv_025475.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.268316297270985,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4122-11963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4122-11963.flac |",
-      "real_speaker_id": "4122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4122-11963.flac |",
-      "real_speaker_id": "4122",
-      "position_frames": 74971
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.21757114468212,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 92486
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.924726717456835,
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-      "utterance_id": "4122-157669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4122-157669.flac |",
-      "real_speaker_id": "4122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.724476572517496,
-      "end_time": 31.268316297270985,
-      "duration": 3.5438397247534894,
-      "start_frame": 443591,
-      "duration_frames": 56701,
-      "overlap": true,
-      "utterance_id": "3021-121438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 189643
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "paralinguistic_events": [
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-      "start_time": 15.100429396474711,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "4122"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025479.json b/conversations/conv_025479.json
deleted file mode 100644
index b53513519b312dfe5a6bde7656407d2a70d09ece..0000000000000000000000000000000000000000
--- a/conversations/conv_025479.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.7687082165513814,
-      "start_frame": 0,
-      "duration_frames": 60299,
-      "overlap": false,
-      "utterance_id": "8444-283136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-283136.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.834502084645006,
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-      "overlap": true,
-      "utterance_id": "7097-80037",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-80037.flac |",
-      "real_speaker_id": "7097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.843534823155702,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-283136.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 60299
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.061142592158028,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-80037.flac |",
-      "real_speaker_id": "7097",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8444-281329",
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-      "real_speaker_id": "8444",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7097-80037",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-80037.flac |",
-      "real_speaker_id": "7097",
-      "position_frames": 169469
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.754630754414436,
-      "end_time": 32.0,
-      "duration": 2.2453692455855645,
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-      "utterance_id": "8444-281329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 54500
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
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-      "speaker_id": "8444"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7097/laugh/0059.wav",
-      "duration": 1.2,
-      "start_time": 28.6593422657794,
-      "speaker_id": "7097"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025480.json b/conversations/conv_025480.json
deleted file mode 100644
index 6f76ec5b9596e14eb8f9157894156a2a01ad8a37..0000000000000000000000000000000000000000
--- a/conversations/conv_025480.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "163-121908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 77538
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-122947.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
-      "real_speaker_id": "811",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Cat",
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-      "start_time": 0,
-      "speaker_id": "163"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025481.json b/conversations/conv_025481.json
deleted file mode 100644
index e4682297bdcfbf2679cfc3b19cba1ae4e234659b..0000000000000000000000000000000000000000
--- a/conversations/conv_025481.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.596140104387374,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "overlap": false,
-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.200934866561223,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
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-      "real_speaker_id": "1809",
-      "position_frames": 59582
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_025496.json b/conversations/conv_025496.json
deleted file mode 100644
index f28ee43b9e06316036a40f69a08636e8f2487f32..0000000000000000000000000000000000000000
--- a/conversations/conv_025496.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
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-      "real_speaker_id": "2299",
-      "position_frames": 96218
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1271-133279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-133279.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Dog",
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025501.json b/conversations/conv_025501.json
deleted file mode 100644
index b9d2e9e62c09a9f33e92102dd5f1beacc3bbecdd..0000000000000000000000000000000000000000
--- a/conversations/conv_025501.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4195/cough/0107.wav",
-      "duration": 1.2759615627567829,
-      "start_time": 27.264426252317733,
-      "speaker_id": "4195"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025506.json b/conversations/conv_025506.json
deleted file mode 100644
index 12dd6e9662cae61449358bd22895d033b5e96ed5..0000000000000000000000000000000000000000
--- a/conversations/conv_025506.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.451888646863043,
-      "duration": 5.451888646863043,
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-      "overlap": false,
-      "utterance_id": "2895-8663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.375970706833273,
-      "end_time": 13.338933527605416,
-      "duration": 6.962962820772143,
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-      "duration_frames": 111407,
-      "overlap": false,
-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.39850785882034,
-      "end_time": 18.96810041031612,
-      "duration": 5.569592551495777,
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-      "duration_frames": 89113,
-      "overlap": true,
-      "utterance_id": "2895-8663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 87230
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.619676154201166,
-      "end_time": 24.647717032128746,
-      "duration": 4.028040877927582,
-      "start_frame": 329914,
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-      "overlap": false,
-      "utterance_id": "481-123719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123719.flac |",
-      "real_speaker_id": "481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.18697935962171,
-      "end_time": 29.111616724410254,
-      "duration": 3.924637364788545,
-      "start_frame": 402991,
-      "duration_frames": 62794,
-      "overlap": false,
-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 111407
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.785875934822645,
-      "end_time": 32.0,
-      "duration": 2.214124065177355,
-      "start_frame": 476574,
-      "duration_frames": 35425,
-      "overlap": false,
-      "utterance_id": "481-123720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123720.flac |",
-      "real_speaker_id": "481",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_2.wav",
-      "duration": 3.1882775564818306,
-      "start_time": 9.582782433771719
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 13.085743291793044
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2895/laugh/0040.wav",
-      "duration": 0.8101856327738723,
-      "start_time": 5.689776004798213,
-      "speaker_id": "2895"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4821/laugh/0025.wav",
-      "duration": 1.4,
-      "start_time": 9.137088558862036,
-      "speaker_id": "4821"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2895/laugh/0006.wav",
-      "duration": 1.16,
-      "start_time": 11.954246936900823,
-      "speaker_id": "2895"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025507.json b/conversations/conv_025507.json
deleted file mode 100644
index 1b24c600b585e29af8b1d18c60d10f6e85f97687..0000000000000000000000000000000000000000
--- a/conversations/conv_025507.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.002134540321764,
-      "duration": 3.002134540321764,
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-      "overlap": false,
-      "utterance_id": "2156-17942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-17942.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.434788358160779,
-      "end_time": 8.007803327829457,
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-      "overlap": false,
-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.178779852197717,
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-      "duration": 4.064779529400738,
-      "start_frame": 130860,
-      "duration_frames": 65036,
-      "overlap": false,
-      "utterance_id": "1187-136238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136238.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.439510350440948,
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-      "duration": 3.0628041641678942,
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-      "duration_frames": 49004,
-      "overlap": false,
-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 73168
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.78739181966175,
-      "end_time": 23.33282854331892,
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-      "overlap": false,
-      "utterance_id": "1187-136241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136241.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.807522646906243,
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-      "start_frame": 364920,
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-      "overlap": true,
-      "utterance_id": "2156-25563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-25563.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.844043059565305,
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-      "duration": 2.155956940434695,
-      "start_frame": 477504,
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-      "overlap": false,
-      "utterance_id": "2517-135227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135227.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
-      "duration": 1.0443083900226757,
-      "start_time": 16.417842883867728
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_4.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2517/laugh/0080.wav",
-      "duration": 0.7598813823005945,
-      "start_time": 2.4341448895923006,
-      "speaker_id": "2517"
-    },
-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 8.988314753831334,
-      "speaker_id": "1187"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2517/cough/0006.wav",
-      "duration": 0.8299116718674158,
-      "start_time": 16.61199635857104,
-      "speaker_id": "2517"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2156/cough/0067.wav",
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-      "start_time": 24.674977943239004,
-      "speaker_id": "2156"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2517/laugh/0059.wav",
-      "duration": 0.9459895593892498,
-      "start_time": 30.83403219656727,
-      "speaker_id": "2517"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2517/cough/0031.wav",
-      "duration": 0.696774566061894,
-      "start_time": 29.085921601861198,
-      "speaker_id": "2517"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025510.json b/conversations/conv_025510.json
deleted file mode 100644
index f4e88bd66b70d324b34f872a9add994e81c47f3e..0000000000000000000000000000000000000000
--- a/conversations/conv_025510.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.561813978878334,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3008-164328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.922105935775371,
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-      "utterance_id": "3006-5697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5697.flac |",
-      "real_speaker_id": "3006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.142732044334636,
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-      "start_frame": 178283,
-      "duration_frames": 83195,
-      "overlap": false,
-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.475132835937714,
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-      "duration_frames": 67212,
-      "overlap": false,
-      "utterance_id": "3006-5697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5697.flac |",
-      "real_speaker_id": "3006",
-      "position_frames": 62800
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.175632563199915,
-      "end_time": 26.300064829885052,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 105161
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.72193469229497,
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-      "duration_frames": 77438,
-      "overlap": false,
-      "utterance_id": "3006-5697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5697.flac |",
-      "real_speaker_id": "3006",
-      "position_frames": 130012
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3008/cough/0058.wav",
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-    {
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3006/cough/0031.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 20.972470702787724,
-      "speaker_id": "3008"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025517.json b/conversations/conv_025517.json
deleted file mode 100644
index 0d91956df7084bc4872ecb630e2d8f0af3a9754d..0000000000000000000000000000000000000000
--- a/conversations/conv_025517.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.0373513919896675,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1901-147822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-147822.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.538289162634971,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123268.flac |",
-      "real_speaker_id": "882",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5949-54612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-54612.flac |",
-      "real_speaker_id": "5949",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-147822.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 80597
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5949-65530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65530.flac |",
-      "real_speaker_id": "5949",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.07946145874477,
-      "end_time": 32.0,
-      "duration": 0.9205385412552296,
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-      "utterance_id": "882-123267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123267.flac |",
-      "real_speaker_id": "882",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-      "start_time": 3.896876634023471
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1901/laugh/0077.wav",
-      "duration": 0.8991054256437567,
-      "start_time": 0,
-      "speaker_id": "1901"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/882/laugh/0029.wav",
-      "duration": 0.92,
-      "start_time": 20.819301040993018,
-      "speaker_id": "882"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025526.json b/conversations/conv_025526.json
deleted file mode 100644
index f76efe6d29bdafb40baf9f382025a4eb714432a2..0000000000000000000000000000000000000000
--- a/conversations/conv_025526.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.426741753663899,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7752-113336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-113336.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.876388630655356,
-      "end_time": 10.836758375715597,
-      "duration": 5.960369745060241,
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-      "duration_frames": 95365,
-      "overlap": false,
-      "utterance_id": "5756-305214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-305214.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.955277419335925,
-      "end_time": 16.403656534162305,
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-      "utterance_id": "5007-31603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31603.flac |",
-      "real_speaker_id": "5007",
-      "position_frames": 0
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-      "start_time": 17.30349795539542,
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-      "overlap": false,
-      "utterance_id": "7752-110526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110526.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.186631887300127,
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-      "duration_frames": 61347,
-      "overlap": true,
-      "utterance_id": "7752-113336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-113336.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 70827
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.534370662699168,
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-      "overlap": false,
-      "utterance_id": "5007-31609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31609.flac |",
-      "real_speaker_id": "5007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.175131758575098,
-      "end_time": 32.0,
-      "duration": 1.8248682414249018,
-      "start_frame": 482802,
-      "duration_frames": 29197,
-      "overlap": false,
-      "utterance_id": "5756-50266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-50266.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "start_time": 24.688015135455892,
-      "speaker_id": "5007"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025530.json b/conversations/conv_025530.json
deleted file mode 100644
index edfa0b4bdd2998cb07ab228dee154ed48f784f96..0000000000000000000000000000000000000000
--- a/conversations/conv_025530.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.7133403319355,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6268076397715294,
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-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.684762528465956,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 58028
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5012-31097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31097.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 165685
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-    {
-      "segment_id": "seg0005",
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-      "end_time": 31.7133403319355,
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-      "start_frame": 463438,
-      "duration_frames": 43974,
-      "overlap": true,
-      "utterance_id": "5012-80192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 64773
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  ],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7316/laugh/0027.wav",
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-      "speaker_id": "7316"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7316/cough/0054.wav",
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-      "start_time": 1.9635931230560213,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5012/laugh/0061.wav",
-      "duration": 1.6107325056731256,
-      "start_time": 7.7507407765236,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 9.567122743439347,
-      "speaker_id": "7316"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025540.json b/conversations/conv_025540.json
deleted file mode 100644
index 0b853116f030f27d02ffffa075ee19eaad2f4de4..0000000000000000000000000000000000000000
--- a/conversations/conv_025540.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7398-98878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98878.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "6747",
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-      "utterance_id": "7398-98877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98877.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-184005.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.61210613069601,
-      "end_time": 28.909060817790568,
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-      "overlap": false,
-      "utterance_id": "6747-76101",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.29577125424352,
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-      "duration": 2.704228745756481,
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-      "utterance_id": "7398-98877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98877.flac |",
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-      "position_frames": 86466
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "speaker_id": "3906"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025547.json b/conversations/conv_025547.json
deleted file mode 100644
index 5a8918d28ddde9ac3a4630daab2bfa03e388dabc..0000000000000000000000000000000000000000
--- a/conversations/conv_025547.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.499268773218597,
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-      "utterance_id": "7749-8591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7749-8591.flac |",
-      "real_speaker_id": "7749",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8163-116797.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.2,
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-      "event_class": "laugh",
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-      "speaker_id": "7749"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025551.json b/conversations/conv_025551.json
deleted file mode 100644
index 30b1225935f017efa201673a6bf5475ad8385ffd..0000000000000000000000000000000000000000
--- a/conversations/conv_025551.json
+++ /dev/null
@@ -1,180 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5951-57348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-57348.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.875943991782424,
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-      "utterance_id": "3781-156973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3781-156973.flac |",
-      "real_speaker_id": "3781",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
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-      "real_speaker_id": "5951",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3781-156973.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_025556.json b/conversations/conv_025556.json
deleted file mode 100644
index e4e26f80fe7349d330afc2a80684f11bfbf644f0..0000000000000000000000000000000000000000
--- a/conversations/conv_025556.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "4257-6397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
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-      "real_speaker_id": "6673",
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-      "segment_id": "seg0004",
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-      "position_frames": 193083
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 4.892072245981996,
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-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 72758
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025567.json b/conversations/conv_025567.json
deleted file mode 100644
index ec1b2b879101229485dbe4c23e687501f9d083b3..0000000000000000000000000000000000000000
--- a/conversations/conv_025567.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.749614837387696,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
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-    {
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-      "event_class": "Blender",
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-      "duration": 0.88,
-      "start_time": 4.8657640870110805,
-      "speaker_id": "5767"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8713/laugh/0038.wav",
-      "duration": 1.24,
-      "start_time": 8.969240679248301,
-      "speaker_id": "8713"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8421/laugh/0008.wav",
-      "duration": 0.8299465129190229,
-      "start_time": 17.264208286284305,
-      "speaker_id": "8421"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8713/laugh/0103.wav",
-      "duration": 0.7095184421719813,
-      "start_time": 28.72788108063947,
-      "speaker_id": "8713"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025571.json b/conversations/conv_025571.json
deleted file mode 100644
index aa66bdbda3a2fb5027a26d27ff77861568c23878..0000000000000000000000000000000000000000
--- a/conversations/conv_025571.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.627930725161652,
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-      "utterance_id": "6458-232057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-232057.flac |",
-      "real_speaker_id": "6458",
-      "position_frames": 0
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-    {
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-      "duration_frames": 104096,
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-      "utterance_id": "3738-176683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176683.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.882940625666174,
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-      "overlap": false,
-      "utterance_id": "6458-232057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-232057.flac |",
-      "real_speaker_id": "6458",
-      "position_frames": 106046
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.30887669594334,
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-      "duration": 4.290894086260906,
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-      "utterance_id": "3738-176680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176680.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.07757527879577,
-      "end_time": 28.548459635597624,
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-      "utterance_id": "6458-61323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-61323.flac |",
-      "real_speaker_id": "6458",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.856725719895334,
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-      "duration": 3.1432742801046665,
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-      "overlap": false,
-      "utterance_id": "3738-176682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176682.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "duration": 1.22,
-      "start_time": 0,
-      "speaker_id": "6458"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6458/laugh/0111.wav",
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-      "speaker_id": "6458"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025584.json b/conversations/conv_025584.json
deleted file mode 100644
index bf770e08ea86090ececcd3cc876f2153215de811..0000000000000000000000000000000000000000
--- a/conversations/conv_025584.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.41432716683571,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 13.1595188352562,
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-      "duration_frames": 71885,
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-      "utterance_id": "3928-153301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153301.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.140326732774092,
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-      "duration": 6.391129415372543,
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-      "duration_frames": 102258,
-      "overlap": false,
-      "utterance_id": "3928-10094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-10094.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.063085310381567,
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-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 83785
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_0.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_025588.json b/conversations/conv_025588.json
deleted file mode 100644
index 04430439fbb589743cfc6c138fd9343a19e86445..0000000000000000000000000000000000000000
--- a/conversations/conv_025588.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.922662364987502,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5355-10767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-10767.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-35477.flac |",
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-      "position_frames": 0
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-      "utterance_id": "7939-120330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120330.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "982-133222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/982-133222.flac |",
-      "real_speaker_id": "982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120330.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 96161
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.518754448673885,
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-      "duration": 3.4039079163136154,
-      "start_frame": 456300,
-      "duration_frames": 54462,
-      "overlap": false,
-      "utterance_id": "982-133222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/982-133222.flac |",
-      "real_speaker_id": "982",
-      "position_frames": 81382
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-  ],
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-    {
-      "event_class": "Vacuum_cleaner",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025592.json b/conversations/conv_025592.json
deleted file mode 100644
index d18fe435c3fa9f54d9f86326a6ec402a2b7002e6..0000000000000000000000000000000000000000
--- a/conversations/conv_025592.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "3959-706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
-      "real_speaker_id": "3959",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7229-80665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80665.flac |",
-      "real_speaker_id": "7229",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.455505830154284,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128283.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.10734828281791,
-      "end_time": 32.0,
-      "duration": 1.8926517171820905,
-      "start_frame": 481717,
-      "duration_frames": 30282,
-      "overlap": false,
-      "utterance_id": "7229-80665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80665.flac |",
-      "real_speaker_id": "7229",
-      "position_frames": 89180
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_4.wav",
-      "duration": 0.5644897959183673,
-      "start_time": 17.42404241385616
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-      "event_class": "Electric_shaver_toothbrush",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7229/cough/0037.wav",
-      "duration": 0.3602070527202548,
-      "start_time": 12.029342193675435,
-      "speaker_id": "7229"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7229/cough/0051.wav",
-      "duration": 0.6899652067452358,
-      "start_time": 19.011228633510896,
-      "speaker_id": "7229"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025593.json b/conversations/conv_025593.json
deleted file mode 100644
index 9af554137f92fc7eaa72471deffe8e93c0a7ed1b..0000000000000000000000000000000000000000
--- a/conversations/conv_025593.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.97012610678147,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.4498856986614683,
-      "duration": 3.4498856986614683,
-      "start_frame": 0,
-      "duration_frames": 55198,
-      "overlap": false,
-      "utterance_id": "3224-168204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168204.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.083177077602154,
-      "end_time": 10.083136908192163,
-      "duration": 5.999959830590009,
-      "start_frame": 65330,
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-      "utterance_id": "4839-15304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15304.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.09046891411635,
-      "end_time": 14.877662022591164,
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-      "duration_frames": 76595,
-      "overlap": true,
-      "utterance_id": "3224-168204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168204.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 55198
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.157096470549334,
-      "end_time": 22.569426065613392,
-      "duration": 6.41232959506406,
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-      "duration_frames": 102597,
-      "overlap": false,
-      "utterance_id": "3703-71531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.052770772502413,
-      "end_time": 26.076251627922307,
-      "duration": 3.023480855419895,
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-      "duration_frames": 48375,
-      "overlap": false,
-      "utterance_id": "3703-71531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 102597
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.34506139687517,
-      "end_time": 31.97012610678147,
-      "duration": 5.625064709906301,
-      "start_frame": 421520,
-      "duration_frames": 90001,
-      "overlap": false,
-      "utterance_id": "4839-15307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15307.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
-      "duration": 19.609079789798585,
-      "start_time": 6.9923782316481065
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-      "start_time": 23.8015440867196
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3224/cough/0127.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4839/cough/0116.wav",
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-      "start_time": 10.091089803249316,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3703/laugh/0067.wav",
-      "duration": 0.6474627740684854,
-      "start_time": 22.37974955364241,
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-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 26.204979667085063,
-      "speaker_id": "3703"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025603.json b/conversations/conv_025603.json
deleted file mode 100644
index d8e508055b3aee99ae32c9bb6200a01480fefff1..0000000000000000000000000000000000000000
--- a/conversations/conv_025603.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.30949499506976,
-      "duration": 6.30949499506976,
-      "start_frame": 0,
-      "duration_frames": 100951,
-      "overlap": false,
-      "utterance_id": "6707-77351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77351.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.8569235813105305,
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-      "overlap": false,
-      "utterance_id": "3641-134615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-134615.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.168005079943661,
-      "end_time": 15.849631015827931,
-      "duration": 3.6816259358842696,
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-      "overlap": false,
-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.959088915713327,
-      "end_time": 22.73633318547598,
-      "duration": 6.777244269762654,
-      "start_frame": 255345,
-      "duration_frames": 108435,
-      "overlap": false,
-      "utterance_id": "6707-73028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-73028.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.138806291469166,
-      "end_time": 26.875039560703893,
-      "duration": 3.736233269234727,
-      "start_frame": 370220,
-      "duration_frames": 59779,
-      "overlap": false,
-      "utterance_id": "3641-6870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.325995783407095,
-      "end_time": 32.0,
-      "duration": 4.674004216592905,
-      "start_frame": 437215,
-      "duration_frames": 74784,
-      "overlap": false,
-      "utterance_id": "6707-77351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77351.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 100951
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
-      "duration": 0.27267573696145125,
-      "start_time": 18.4890346201609
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3641/laugh/0093.wav",
-      "duration": 0.92,
-      "start_time": 11.933862150996868,
-      "speaker_id": "3641"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3641/cough/0085.wav",
-      "duration": 0.4954898763823541,
-      "start_time": 9.729217200388547,
-      "speaker_id": "3641"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3641/laugh/0078.wav",
-      "duration": 1.64,
-      "start_time": 21.339033344154288,
-      "speaker_id": "3641"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025615.json b/conversations/conv_025615.json
deleted file mode 100644
index f92c778fc210cf2b373257b63053a2f5515df693..0000000000000000000000000000000000000000
--- a/conversations/conv_025615.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.385281611905021,
-      "duration": 5.385281611905021,
-      "start_frame": 0,
-      "duration_frames": 86164,
-      "overlap": false,
-      "utterance_id": "3006-5697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5697.flac |",
-      "real_speaker_id": "3006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.972083170186617,
-      "end_time": 9.777804132765235,
-      "duration": 3.8057209625786177,
-      "start_frame": 95553,
-      "duration_frames": 60891,
-      "overlap": false,
-      "utterance_id": "2182-150130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.45211653355553,
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-      "duration": 3.6965626243518015,
-      "start_frame": 167233,
-      "duration_frames": 59145,
-      "overlap": false,
-      "utterance_id": "6625-39680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-39680.flac |",
-      "real_speaker_id": "6625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.449043569820452,
-      "end_time": 21.398265453313797,
-      "duration": 5.9492218834933475,
-      "start_frame": 247184,
-      "duration_frames": 95187,
-      "overlap": false,
-      "utterance_id": "6625-73085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-73085.flac |",
-      "real_speaker_id": "6625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.549752808373757,
-      "end_time": 25.940876932289157,
-      "duration": 4.391124123915402,
-      "start_frame": 344796,
-      "duration_frames": 70257,
-      "overlap": false,
-      "utterance_id": "3006-5698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5698.flac |",
-      "real_speaker_id": "3006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.62565862167143,
-      "end_time": 30.35780693931573,
-      "duration": 3.7321483176442998,
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-      "duration_frames": 59714,
-      "overlap": false,
-      "utterance_id": "2182-181173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181173.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.575573291404158,
-      "end_time": 32.0,
-      "duration": 1.424426708595842,
-      "start_frame": 489209,
-      "duration_frames": 22790,
-      "overlap": false,
-      "utterance_id": "6625-39680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-39680.flac |",
-      "real_speaker_id": "6625",
-      "position_frames": 59145
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
-      "duration": 2.8832478480718944,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3006/cough/0104.wav",
-      "duration": 0.5766860257638743,
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-      "speaker_id": "3006"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/laugh/0009.wav",
-      "duration": 1.22,
-      "start_time": 7.653153561339294,
-      "speaker_id": "2182"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6625/laugh/0003.wav",
-      "duration": 1.52,
-      "start_time": 13.86096464647179,
-      "speaker_id": "6625"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3006/laugh/0037.wav",
-      "duration": 0.92,
-      "start_time": 21.804395407981513,
-      "speaker_id": "3006"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3006/cough/0005.wav",
-      "duration": 1.04,
-      "start_time": 26.054114862720226,
-      "speaker_id": "3006"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/laugh/0112.wav",
-      "duration": 0.8877565799113762,
-      "start_time": 30.577594734572372,
-      "speaker_id": "2182"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025619.json b/conversations/conv_025619.json
deleted file mode 100644
index 0f9871b81f38a6f27fe12c15bb2b758fb80f28d1..0000000000000000000000000000000000000000
--- a/conversations/conv_025619.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.035879850360561,
-      "duration": 4.035879850360561,
-      "start_frame": 0,
-      "duration_frames": 64574,
-      "overlap": false,
-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_025623.json b/conversations/conv_025623.json
deleted file mode 100644
index 100cb2354d629881532ae08d2c8e13b697ee3558..0000000000000000000000000000000000000000
--- a/conversations/conv_025623.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4051-11218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11218.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-65803.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-10988.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.298172127697526,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126959.flac |",
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-      "segment_id": "seg0005",
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-      "utterance_id": "4051-11218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11218.flac |",
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-      "position_frames": 77137
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025628.json b/conversations/conv_025628.json
deleted file mode 100644
index dcb62eb7124e4ab1043e32f5581d72f68e399b7d..0000000000000000000000000000000000000000
--- a/conversations/conv_025628.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.663605176483976,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-93289.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-93289.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-157475.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "utterance_id": "2532-157475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-157475.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 78997
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7327-96491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-96491.flac |",
-      "real_speaker_id": "7327",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "Frying",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025635.json b/conversations/conv_025635.json
deleted file mode 100644
index 65da0c74a1cfd9d5a114b1393adb33b466f03956..0000000000000000000000000000000000000000
--- a/conversations/conv_025635.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.588485481816043,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5101-67854",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5101-67854.flac |",
-      "real_speaker_id": "5101",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.080363084490039,
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-      "utterance_id": "6437-66173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6437-66173.flac |",
-      "real_speaker_id": "6437",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5101-40462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5101-40462.flac |",
-      "real_speaker_id": "5101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6437-66172",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "5101",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "real_speaker_id": "6848",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_025639.json b/conversations/conv_025639.json
deleted file mode 100644
index 2130df2a5f26abafd0bbc1a6cf6dc1a0da2ba1f1..0000000000000000000000000000000000000000
--- a/conversations/conv_025639.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110519.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1643-138089.flac |",
-      "real_speaker_id": "1643",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110519.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_025642.json b/conversations/conv_025642.json
deleted file mode 100644
index 99f576d7e97a242aeb07ba99d8fb66dff507c907..0000000000000000000000000000000000000000
--- a/conversations/conv_025642.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6773-76039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.388548525677805,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
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-      "real_speaker_id": "8975",
-      "position_frames": 139726
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_025645.json b/conversations/conv_025645.json
deleted file mode 100644
index ddc27185c1ad906e664e5b0270f6d4a35d9d9300..0000000000000000000000000000000000000000
--- a/conversations/conv_025645.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5013-31101.flac |",
-      "real_speaker_id": "5013",
-      "position_frames": 67509
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-    {
-      "segment_id": "seg0006",
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-  "background_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_025654.json b/conversations/conv_025654.json
deleted file mode 100644
index c017688fb4cbc4c859770f4239d65835cb6abbc8..0000000000000000000000000000000000000000
--- a/conversations/conv_025654.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "start_time": 3.823444259079325
-    },
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.9447845804988662,
-      "start_time": 2.3611394236968466
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/255/cough/0101.wav",
-      "duration": 0.4431302197519026,
-      "start_time": 11.406452871089831,
-      "speaker_id": "255"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1069/laugh/0037.wav",
-      "duration": 1.52,
-      "start_time": 15.073656317424357,
-      "speaker_id": "1069"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/255/laugh/0111.wav",
-      "duration": 0.5698521171401398,
-      "start_time": 26.891505677150853,
-      "speaker_id": "255"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1069/cough/0071.wav",
-      "duration": 0.7205479990657031,
-      "start_time": 31.279452000934295,
-      "speaker_id": "1069"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025655.json b/conversations/conv_025655.json
deleted file mode 100644
index 60fdfe3ad2c28f08e102d215eb007e33fe724fd8..0000000000000000000000000000000000000000
--- a/conversations/conv_025655.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.478052705471725,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.6968743278990344,
-      "duration": 3.6968743278990344,
-      "start_frame": 0,
-      "duration_frames": 59149,
-      "overlap": false,
-      "utterance_id": "1933-146437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.053213587211675,
-      "end_time": 9.419225177030746,
-      "duration": 5.366011589819072,
-      "start_frame": 64851,
-      "duration_frames": 85856,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.576437452031627,
-      "end_time": 14.198875564630578,
-      "duration": 3.622438112598951,
-      "start_frame": 169222,
-      "duration_frames": 57959,
-      "overlap": false,
-      "utterance_id": "1933-146437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 59149
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.719583748361572,
-      "end_time": 21.141208178507917,
-      "duration": 6.421624430146346,
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-      "duration_frames": 102745,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 85856
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.27611217778856,
-      "end_time": 27.775145581867903,
-      "duration": 6.499033404079343,
-      "start_frame": 340417,
-      "duration_frames": 103984,
-      "overlap": true,
-      "utterance_id": "1933-146437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 117108
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.292272225180902,
-      "end_time": 31.478052705471725,
-      "duration": 2.1857804802908234,
-      "start_frame": 468676,
-      "duration_frames": 34972,
-      "overlap": true,
-      "utterance_id": "663-128990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
-      "duration": 21.17314983083025,
-      "start_time": 7.170390320166904
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
-      "duration": 3.0375301377116393,
-      "start_time": 26.79150315748965
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1933/cough/0040.wav",
-      "duration": 0.7862111536382552,
-      "start_time": 0,
-      "speaker_id": "1933"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3258/cough/0068.wav",
-      "duration": 1.045036400535897,
-      "start_time": 6.978240164964278,
-      "speaker_id": "3258"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1933/cough/0035.wav",
-      "duration": 1.000080772804599,
-      "start_time": 14.203669338306044,
-      "speaker_id": "1933"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1933/cough/0017.wav",
-      "duration": 0.5827938589659565,
-      "start_time": 24.829923450901315,
-      "speaker_id": "1933"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/663/cough/0007.wav",
-      "duration": 1.013801241083339,
-      "start_time": 29.751862482732676,
-      "speaker_id": "663"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025658.json b/conversations/conv_025658.json
deleted file mode 100644
index 7f97f7e82ed1a135e3f719035c91f8126f018696..0000000000000000000000000000000000000000
--- a/conversations/conv_025658.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.28241747062839,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.27346239944864,
-      "duration": 4.27346239944864,
-      "start_frame": 0,
-      "duration_frames": 68375,
-      "overlap": false,
-      "utterance_id": "8424-281344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8424-281344.flac |",
-      "real_speaker_id": "8424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.833824028053477,
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-      "overlap": false,
-      "utterance_id": "1154-134887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134887.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.241124720338888,
-      "end_time": 16.054888294192008,
-      "duration": 3.8137635738531195,
-      "start_frame": 195857,
-      "duration_frames": 61020,
-      "overlap": false,
-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.620728390675815,
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-      "duration": 3.296738467768641,
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-      "overlap": false,
-      "utterance_id": "1154-129975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129975.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.082276220605785,
-      "end_time": 23.752197586922033,
-      "duration": 3.669921366316249,
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-      "duration_frames": 58718,
-      "overlap": false,
-      "utterance_id": "8424-284526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8424-284526.flac |",
-      "real_speaker_id": "8424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.101844593392023,
-      "end_time": 30.690012057490648,
-      "duration": 5.5881674640986265,
-      "start_frame": 401629,
-      "duration_frames": 89410,
-      "overlap": false,
-      "utterance_id": "1154-134886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134886.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.129786428746705,
-      "end_time": 31.28241747062839,
-      "duration": 1.1526310418816834,
-      "start_frame": 482076,
-      "duration_frames": 18442,
-      "overlap": true,
-      "utterance_id": "8424-284526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8424-284526.flac |",
-      "real_speaker_id": "8424",
-      "position_frames": 58718
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
-      "duration": 19.250572362272678,
-      "start_time": 6.861840035123146
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
-      "duration": 3.724711418744833,
-      "start_time": 24.583082695709695
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8424/laugh/0040.wav",
-      "duration": 0.5351811771540611,
-      "start_time": 0,
-      "speaker_id": "8424"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/199/laugh/0027.wav",
-      "duration": 0.8276186625459869,
-      "start_time": 16.088341373348975,
-      "speaker_id": "199"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1154/laugh/0089.wav",
-      "duration": 0.9842690731357426,
-      "start_time": 23.837571702740192,
-      "speaker_id": "1154"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8424/cough/0057.wav",
-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "8424"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025662.json b/conversations/conv_025662.json
deleted file mode 100644
index 8385a1de3e880e81cfd78e20862169518d42be4d..0000000000000000000000000000000000000000
--- a/conversations/conv_025662.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.010522382221679,
-      "end_time": 10.417987980204964,
-      "duration": 4.407465597983285,
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-      "duration_frames": 70519,
-      "overlap": false,
-      "utterance_id": "3274-163518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3274-163518.flac |",
-      "real_speaker_id": "3274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.592080185546894,
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-      "duration": 3.942924691031113,
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-      "duration_frames": 63086,
-      "overlap": false,
-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.8603715053475,
-      "end_time": 21.698563723671214,
-      "duration": 4.8381922183237105,
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-      "overlap": false,
-      "utterance_id": "2952-408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-408.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.649782464448492,
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-      "duration_frames": 77695,
-      "overlap": true,
-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 63086
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.23460008467184,
-      "end_time": 32.0,
-      "duration": 4.76539991532816,
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-      "duration_frames": 76246,
-      "overlap": false,
-      "utterance_id": "2952-408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-408.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 77411
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
-      "duration": 29.140507476807645,
-      "start_time": 2.3318119274104374
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3009/laugh/0072.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3009/cough/0067.wav",
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-      "start_time": 1.6467079530629078,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3274/laugh/0048.wav",
-      "duration": 1.42,
-      "start_time": 10.690417363136104,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3274/cough/0092.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2952/laugh/0070.wav",
-      "duration": 1.36,
-      "start_time": 18.56732168304297,
-      "speaker_id": "2952"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025669.json b/conversations/conv_025669.json
deleted file mode 100644
index a602193361468bdfe89d5c26901900791a0844e2..0000000000000000000000000000000000000000
--- a/conversations/conv_025669.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.326062732684747,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5424-296464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-296464.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-280358.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.393531171604536,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
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-  "background_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_025674.json b/conversations/conv_025674.json
deleted file mode 100644
index 2afc8be79f530424d3098b15eed2aed281d92cc4..0000000000000000000000000000000000000000
--- a/conversations/conv_025674.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.6666666666666666,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-63229.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-63225.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
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-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 177491
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025678.json b/conversations/conv_025678.json
deleted file mode 100644
index f6b905b382c2506dbaa9d58d254651ed45f14e87..0000000000000000000000000000000000000000
--- a/conversations/conv_025678.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
-      "position_frames": 0
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-      "speaker_id": "3675"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025681.json b/conversations/conv_025681.json
deleted file mode 100644
index adce63787bd51e1e4a7e76465e2d7630dd859fca..0000000000000000000000000000000000000000
--- a/conversations/conv_025681.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "3072"
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-    {
-      "event_class": "laugh",
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-      "start_time": 19.071294588824514,
-      "speaker_id": "3072"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5731/cough/0017.wav",
-      "duration": 0.7243830517735459,
-      "start_time": 23.698118426431826,
-      "speaker_id": "5731"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5731/laugh/0084.wav",
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-      "speaker_id": "5731"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025686.json b/conversations/conv_025686.json
deleted file mode 100644
index 5f11a1ee25873a2d363f820e6ee0aefc056dfb31..0000000000000000000000000000000000000000
--- a/conversations/conv_025686.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8725-294554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294554.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.5292253240249325,
-      "end_time": 9.215461294365412,
-      "duration": 3.68623597034048,
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-      "duration_frames": 58979,
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-      "utterance_id": "4659-26489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-26489.flac |",
-      "real_speaker_id": "4659",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.211459218076133,
-      "end_time": 14.2321270800586,
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-      "utterance_id": "1323-138617",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138617.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.650563427175186,
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-      "overlap": false,
-      "utterance_id": "8725-294551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294551.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.94254528344517,
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-      "duration": 6.795330637795452,
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-      "duration_frames": 108725,
-      "overlap": false,
-      "utterance_id": "1323-138548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138548.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.336400749372064,
-      "end_time": 30.191809562184332,
-      "duration": 3.855408812812268,
-      "start_frame": 421382,
-      "duration_frames": 61686,
-      "overlap": false,
-      "utterance_id": "8725-294551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294551.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 65203
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.14483208312042,
-      "end_time": 32.0,
-      "duration": 0.85516791687958,
-      "start_frame": 498317,
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-      "utterance_id": "4659-12465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-12465.flac |",
-      "real_speaker_id": "4659",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.64,
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "start_time": 30.1303565484677,
-      "speaker_id": "4659"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025690.json b/conversations/conv_025690.json
deleted file mode 100644
index b4df1ade864e7cc45004988dfa52f7b9a1827009..0000000000000000000000000000000000000000
--- a/conversations/conv_025690.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.041238152536085,
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-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1259-27120.flac |",
-      "real_speaker_id": "1259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 96659
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.074069768143147,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3067.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.323037623580028,
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-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 155767
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.486257697390332,
-      "end_time": 29.926265528855893,
-      "duration": 4.440007831465561,
-      "start_frame": 407780,
-      "duration_frames": 71040,
-      "overlap": false,
-      "utterance_id": "4402-3066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3066.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.154114157698835,
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-      "duration": 1.8458858423011648,
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-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "6792"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025697.json b/conversations/conv_025697.json
deleted file mode 100644
index 562dca54bf370a373b4c2cf6abdf4e81cf35425a..0000000000000000000000000000000000000000
--- a/conversations/conv_025697.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.488506471442737,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6281-1315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "2790",
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-    {
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-      "utterance_id": "6281-65531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 13.387681461233758,
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-397.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 100568
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.136680216252024,
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-      "utterance_id": "2790-142824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 82351
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "6281"
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-    {
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6555/laugh/0101.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025700.json b/conversations/conv_025700.json
deleted file mode 100644
index 4c0cf6bdeb41fc9ba24a1548b159393363310096..0000000000000000000000000000000000000000
--- a/conversations/conv_025700.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.527013840913618,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "end_time": 6.665995876919216,
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-      "utterance_id": "2712-3536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.979487259196883,
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-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121971.flac |",
-      "real_speaker_id": "31",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
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-  "paralinguistic_events": [
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-      "start_time": 19.052956769498277,
-      "speaker_id": "2712"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_025707.json b/conversations/conv_025707.json
deleted file mode 100644
index ef264146f3142fbc916494028f4f36880687a9ee..0000000000000000000000000000000000000000
--- a/conversations/conv_025707.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.6246455527426455,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "163-121908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-121908.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.976917719765105,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-113769.flac |",
-      "real_speaker_id": "8042",
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-      "overlap": true,
-      "utterance_id": "163-122947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-122947.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.939334407571918,
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-      "utterance_id": "4773-19207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-19207.flac |",
-      "real_speaker_id": "4773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.91946549197371,
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-      "utterance_id": "4773-25911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-25911.flac |",
-      "real_speaker_id": "4773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.72119191064047,
-      "end_time": 32.0,
-      "duration": 3.2788080893595293,
-      "start_frame": 459539,
-      "duration_frames": 52460,
-      "overlap": false,
-      "utterance_id": "8042-245695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-245695.flac |",
-      "real_speaker_id": "8042",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025710.json b/conversations/conv_025710.json
deleted file mode 100644
index bd3fdf517bf78f11033a71611361006868e4ff22..0000000000000000000000000000000000000000
--- a/conversations/conv_025710.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288043.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 78580
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-      "segment_id": "seg0003",
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-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 182681
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1289-288043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288043.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 67933
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-  ],
-  "background_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/laugh/0026.wav",
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-      "event_class": "cough",
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-      "speaker_id": "4428"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025711.json b/conversations/conv_025711.json
deleted file mode 100644
index 494bd6996fd13c8bd65fd718d5bcac6969b1d072..0000000000000000000000000000000000000000
--- a/conversations/conv_025711.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.208528203867392,
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-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
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-      "real_speaker_id": "1171",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 174335
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1171-130776",
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-      "real_speaker_id": "1171",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 78105
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025727.json b/conversations/conv_025727.json
deleted file mode 100644
index c9a01751cfd5b7577dc7faea7c76c528f71c6431..0000000000000000000000000000000000000000
--- a/conversations/conv_025727.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
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-      "real_speaker_id": "3006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-107621.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.298006470015785,
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-      "duration": 4.584688028982932,
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-      "utterance_id": "3006-5697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5697.flac |",
-      "real_speaker_id": "3006",
-      "position_frames": 109723
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.236243044716353,
-      "end_time": 32.0,
-      "duration": 1.7637569552836467,
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-      "overlap": false,
-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-      "event_class": "Dog",
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-    {
-      "event_class": "laugh",
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-      "start_time": 23.847868556987592,
-      "speaker_id": "3006"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025731.json b/conversations/conv_025731.json
deleted file mode 100644
index b385c78db359a0326fa1fde14ab8c3cb18dd3d41..0000000000000000000000000000000000000000
--- a/conversations/conv_025731.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.080651478350377,
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-      "overlap": false,
-      "utterance_id": "4824-36027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36027.flac |",
-      "real_speaker_id": "4824",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.4453898883173966,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36029.flac |",
-      "real_speaker_id": "4824",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 20.112560640568667,
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-      "utterance_id": "8776-270778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
-      "position_frames": 56172
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.153016077822688,
-      "end_time": 27.892151151856027,
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-      "duration_frames": 75826,
-      "overlap": true,
-      "utterance_id": "2380-152158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 101980
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.03284709346103,
-      "end_time": 32.0,
-      "duration": 2.9671529065389706,
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-      "utterance_id": "2380-152158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 177806
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_025746.json b/conversations/conv_025746.json
deleted file mode 100644
index ced111dbace8265e32d213013f2c82dfb2d3c092..0000000000000000000000000000000000000000
--- a/conversations/conv_025746.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2553-163692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163692.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163692.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 84821
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68353.flac |",
-      "real_speaker_id": "6492",
-      "position_frames": 84855
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163692.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 163944
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.243626698492534,
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-      "overlap": false,
-      "utterance_id": "6492-68369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68369.flac |",
-      "real_speaker_id": "6492",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "2553"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2553/laugh/0098.wav",
-      "duration": 0.9097652660453921,
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-      "speaker_id": "2553"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6492/laugh/0086.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "6492"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025747.json b/conversations/conv_025747.json
deleted file mode 100644
index 5ca640d812c8a5d4762d1be6325f7df7e5e06c2f..0000000000000000000000000000000000000000
--- a/conversations/conv_025747.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.171094864220473,
-      "end_time": 10.431564863057858,
-      "duration": 3.260469998837385,
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-      "duration_frames": 52167,
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-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 108449
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.841634444541818,
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-      "overlap": false,
-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 52167
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.400486698272363,
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-      "real_speaker_id": "576",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 133427
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/728/laugh/0101.wav",
-      "duration": 1.48,
-      "start_time": 18.07300475805582,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/576/laugh/0085.wav",
-      "duration": 1.26,
-      "start_time": 24.399107949963646,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/728/laugh/0009.wav",
-      "duration": 0.84,
-      "start_time": 28.818624874804048,
-      "speaker_id": "728"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025750.json b/conversations/conv_025750.json
deleted file mode 100644
index a9fbf56f4d67d8c991c9567e21d1545614fb6b0d..0000000000000000000000000000000000000000
--- a/conversations/conv_025750.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.01957600274473,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6544-71420.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123523.flac |",
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-      "speaker_id": "302"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025766.json b/conversations/conv_025766.json
deleted file mode 100644
index 974f48cb8d157dc66acebb83539275e5321f61b6..0000000000000000000000000000000000000000
--- a/conversations/conv_025766.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6534-71091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-71091.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 83871
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_025770.json b/conversations/conv_025770.json
deleted file mode 100644
index 3ddf4bb13741f6f118d46feda6390fed86bcdb53..0000000000000000000000000000000000000000
--- a/conversations/conv_025770.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
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-      "real_speaker_id": "2491",
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-      "real_speaker_id": "2491",
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-      "real_speaker_id": "1870",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_025782.json b/conversations/conv_025782.json
deleted file mode 100644
index 3b52e88daf72107cad1b5e45b30dd507633cf671..0000000000000000000000000000000000000000
--- a/conversations/conv_025782.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2133/laugh/0072.wav",
-      "duration": 1.3146316542803853,
-      "start_time": 21.823462409030917,
-      "speaker_id": "2133"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2133/cough/0037.wav",
-      "duration": 0.5684623113529952,
-      "start_time": 31.431537688647005,
-      "speaker_id": "2133"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025785.json b/conversations/conv_025785.json
deleted file mode 100644
index 996fbe8d6c2507d9a79b87696b04bc3e5c56cf0a..0000000000000000000000000000000000000000
--- a/conversations/conv_025785.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.06163613992798,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.785363788215107,
-      "duration": 5.785363788215107,
-      "start_frame": 0,
-      "duration_frames": 92565,
-      "overlap": false,
-      "utterance_id": "699-132864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132864.flac |",
-      "real_speaker_id": "699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.385587903301864,
-      "end_time": 9.572097940364001,
-      "duration": 3.186510037062138,
-      "start_frame": 102169,
-      "duration_frames": 50984,
-      "overlap": false,
-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.111806747960438,
-      "end_time": 14.163261876733664,
-      "duration": 4.0514551287732266,
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-      "duration_frames": 64823,
-      "overlap": false,
-      "utterance_id": "699-132866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132866.flac |",
-      "real_speaker_id": "699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.292534948690285,
-      "end_time": 20.122554390617687,
-      "duration": 5.8300194419274,
-      "start_frame": 228680,
-      "duration_frames": 93280,
-      "overlap": false,
-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.879121395270325,
-      "end_time": 24.189485893152785,
-      "duration": 4.310364497882462,
-      "start_frame": 318065,
-      "duration_frames": 68965,
-      "overlap": true,
-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 50984
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.132033293566515,
-      "end_time": 29.865377042546143,
-      "duration": 4.73334374897963,
-      "start_frame": 402112,
-      "duration_frames": 75733,
-      "overlap": false,
-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 93280
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.50569346945856,
-      "end_time": 31.06163613992798,
-      "duration": 1.5559426704694204,
-      "start_frame": 472091,
-      "duration_frames": 24895,
-      "overlap": true,
-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 169013
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 21.512950505233693,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.1606357946976207,
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
-      "duration": 1.7768402456752854,
-      "start_time": 19.434362847294523
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/699/laugh/0110.wav",
-      "duration": 1.36,
-      "start_time": 8.749575164644856,
-      "speaker_id": "699"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2735/laugh/0069.wav",
-      "duration": 0.501535514824325,
-      "start_time": 27.986233758503655,
-      "speaker_id": "2735"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025789.json b/conversations/conv_025789.json
deleted file mode 100644
index 1b079a855e2c8af66f9e3d13545de0640240ee3a..0000000000000000000000000000000000000000
--- a/conversations/conv_025789.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.101145892958216,
-      "duration": 5.101145892958216,
-      "start_frame": 0,
-      "duration_frames": 81618,
-      "overlap": false,
-      "utterance_id": "1859-145700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145700.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.5474865083652105,
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-      "utterance_id": "4174-69287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-69287.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "1859-145703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.77639199279056,
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-      "duration": 5.183228144868576,
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-      "overlap": false,
-      "utterance_id": "3032-19361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.110874468736498,
-      "end_time": 27.321456313034908,
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-      "duration_frames": 83369,
-      "overlap": false,
-      "utterance_id": "4174-107938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-107938.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.470775865055806,
-      "end_time": 32.0,
-      "duration": 4.529224134944194,
-      "start_frame": 439532,
-      "duration_frames": 72467,
-      "overlap": false,
-      "utterance_id": "1859-145703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 92611
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 4.298595919566603
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1859/cough/0048.wav",
-      "duration": 1.0880612587907803,
-      "start_time": 0,
-      "speaker_id": "1859"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4174/laugh/0052.wav",
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-      "start_time": 4.000149161866323,
-      "speaker_id": "4174"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1859/laugh/0025.wav",
-      "duration": 0.545870353853896,
-      "start_time": 14.348320919825422,
-      "speaker_id": "1859"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1859/laugh/0003.wav",
-      "duration": 0.646767538797726,
-      "start_time": 28.96508128070006,
-      "speaker_id": "1859"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025793.json b/conversations/conv_025793.json
deleted file mode 100644
index 0d4d3f5f2f8e1594d29386ebcd256e7b6b95b11b..0000000000000000000000000000000000000000
--- a/conversations/conv_025793.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "225-131256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131256.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.986637842037063,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1532.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131256.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 89476
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.272968505284815,
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-      "duration": 5.734764530947587,
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-      "duration_frames": 91756,
-      "overlap": true,
-      "utterance_id": "1417-1536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1536.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.761762802619163,
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-      "overlap": false,
-      "utterance_id": "359-128761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.185340113583784,
-      "end_time": 32.0,
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-      "utterance_id": "1417-1539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-      "event_class": "Cat",
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-      "start_time": 5.446512243906244
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_025794.json b/conversations/conv_025794.json
deleted file mode 100644
index d82808f788c2cdf470960fe1eb215e82461b4dff..0000000000000000000000000000000000000000
--- a/conversations/conv_025794.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.053941650532423,
-      "duration": 5.053941650532423,
-      "start_frame": 0,
-      "duration_frames": 80863,
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-      "utterance_id": "1291-138273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138273.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 74491,
-      "overlap": true,
-      "utterance_id": "2067-143536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 108289
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 10.107652577970494
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_025802.json b/conversations/conv_025802.json
deleted file mode 100644
index 224fcf32a96f4525279a74e37b8988112131568c..0000000000000000000000000000000000000000
--- a/conversations/conv_025802.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.55116829970826,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.1910571280189908,
-      "duration": 3.1910571280189908,
-      "start_frame": 0,
-      "duration_frames": 51056,
-      "overlap": false,
-      "utterance_id": "4195-17507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4195-17507.flac |",
-      "real_speaker_id": "4195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7261977326945335,
-      "end_time": 7.938047585223222,
-      "duration": 4.2118498525286885,
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-      "duration_frames": 67389,
-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.60010781704074,
-      "end_time": 12.71059174521895,
-      "duration": 4.11048392817821,
-      "start_frame": 137601,
-      "duration_frames": 65767,
-      "overlap": false,
-      "utterance_id": "4195-186237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4195-186237.flac |",
-      "real_speaker_id": "4195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 12.43915047672363,
-      "end_time": 17.38087379980535,
-      "duration": 4.941723323081721,
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-      "duration_frames": 79067,
-      "overlap": true,
-      "utterance_id": "7357-94126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.293712506661613,
-      "end_time": 24.55898745908136,
-      "duration": 6.265274952419749,
-      "start_frame": 292699,
-      "duration_frames": 100244,
-      "overlap": false,
-      "utterance_id": "4195-186236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4195-186236.flac |",
-      "real_speaker_id": "4195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.4076643756218,
-      "end_time": 31.55116829970826,
-      "duration": 6.143503924086458,
-      "start_frame": 406522,
-      "duration_frames": 98296,
-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 67389
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.28255797058167,
-      "start_time": 8.124746924051863
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
-      "duration": 2.3755795079897335,
-      "start_time": 15.925036133840168
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4195/laugh/0105.wav",
-      "duration": 1.4,
-      "start_time": 0.23170316097609986,
-      "speaker_id": "4195"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4195/cough/0053.wav",
-      "duration": 1.3414893588852626,
-      "start_time": 0.12632455419207084,
-      "speaker_id": "4195"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6160/laugh/0039.wav",
-      "duration": 1.16,
-      "start_time": 24.203141442822258,
-      "speaker_id": "6160"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6160/cough/0015.wav",
-      "duration": 1.2,
-      "start_time": 24.067773997679595,
-      "speaker_id": "6160"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025805.json b/conversations/conv_025805.json
deleted file mode 100644
index 03acdf619781f90c0f5ed4fa1b5c3b7eb9bf0ee1..0000000000000000000000000000000000000000
--- a/conversations/conv_025805.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.045666969850829,
-      "duration": 5.045666969850829,
-      "start_frame": 0,
-      "duration_frames": 80730,
-      "overlap": false,
-      "utterance_id": "4590-18006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18006.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.306173010932989,
-      "end_time": 8.948094248226582,
-      "duration": 3.6419212372935923,
-      "start_frame": 84898,
-      "duration_frames": 58270,
-      "overlap": false,
-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.243104041372609,
-      "end_time": 13.517187484638672,
-      "duration": 4.274083443266062,
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-      "duration_frames": 68385,
-      "overlap": false,
-      "utterance_id": "4590-18005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18005.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.808591372968348,
-      "end_time": 19.235082260908488,
-      "duration": 5.4264908879401395,
-      "start_frame": 220937,
-      "duration_frames": 86823,
-      "overlap": false,
-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 58270
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.058723589734733,
-      "end_time": 25.910574005508796,
-      "duration": 5.851850415774062,
-      "start_frame": 320939,
-      "duration_frames": 93629,
-      "overlap": false,
-      "utterance_id": "4590-18006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18006.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 80730
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.64215763875493,
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-      "duration": 4.6860221969316225,
-      "start_frame": 426274,
-      "duration_frames": 74976,
-      "overlap": false,
-      "utterance_id": "816-2301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.569645113496293,
-      "end_time": 32.0,
-      "duration": 0.43035488650370723,
-      "start_frame": 505114,
-      "duration_frames": 6885,
-      "overlap": false,
-      "utterance_id": "4590-18004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18004.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
-      "duration": 1.0005215419501134,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_1.wav",
-      "duration": 2.0639649637246533,
-      "start_time": 21.827492511510112
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4590/laugh/0045.wav",
-      "duration": 1.1138615540857437,
-      "start_time": 5.101945453686588,
-      "speaker_id": "4590"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4590/cough/0011.wav",
-      "duration": 1.1930276148691648,
-      "start_time": 3.0282297781599365,
-      "speaker_id": "4590"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4590/cough/0071.wav",
-      "duration": 0.79820525456693,
-      "start_time": 8.329405638971842,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/816/cough/0025.wav",
-      "duration": 1.32,
-      "start_time": 12.442349021852758,
-      "speaker_id": "816"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025813.json b/conversations/conv_025813.json
deleted file mode 100644
index db894576881ad44badc16ebeb5bbc86b291e829e..0000000000000000000000000000000000000000
--- a/conversations/conv_025813.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4576-66275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4576-66275.flac |",
-      "real_speaker_id": "4576",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.127879073655915,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113274.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4576-66275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4576-66275.flac |",
-      "real_speaker_id": "4576",
-      "position_frames": 77975
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.390632393219878,
-      "end_time": 20.192645898428616,
-      "duration": 4.8020135052087385,
-      "start_frame": 246250,
-      "duration_frames": 76832,
-      "overlap": false,
-      "utterance_id": "7883-113274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113274.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 81023
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.968080768671957,
-      "end_time": 26.866712942694548,
-      "duration": 5.898632174022592,
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-      "duration_frames": 94378,
-      "overlap": false,
-      "utterance_id": "2854-51657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51657.flac |",
-      "real_speaker_id": "2854",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.19640806585578,
-      "end_time": 31.27001079930549,
-      "duration": 4.073602733449709,
-      "start_frame": 435142,
-      "duration_frames": 65177,
-      "overlap": false,
-      "utterance_id": "7883-113275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113275.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.631368465949524,
-      "end_time": 32.0,
-      "duration": 0.36863153405047555,
-      "start_frame": 506101,
-      "duration_frames": 5898,
-      "overlap": false,
-      "utterance_id": "4576-66268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4576-66268.flac |",
-      "real_speaker_id": "4576",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
-      "duration": 0.9133560090702948,
-      "start_time": 12.746935563700461
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4576/cough/0065.wav",
-      "duration": 0.5682218726547632,
-      "start_time": 0,
-      "speaker_id": "4576"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4576/laugh/0070.wav",
-      "duration": 1.16,
-      "start_time": 30.184230794144604,
-      "speaker_id": "4576"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025814.json b/conversations/conv_025814.json
deleted file mode 100644
index 56b353baa9e9b80c14662a2fb3d6cb052a0cd9ff..0000000000000000000000000000000000000000
--- a/conversations/conv_025814.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.919666270669585,
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-      "overlap": false,
-      "utterance_id": "6531-61334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.154216879086222,
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-      "real_speaker_id": "7238",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "6531-61334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
-      "position_frames": 78714
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7238-91112.flac |",
-      "real_speaker_id": "7238",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "9022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.074845666405203,
-      "end_time": 32.0,
-      "duration": 4.925154333594797,
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-      "duration_frames": 78802,
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-      "utterance_id": "9022-282357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 78746
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
-      "duration": 15.55204081632653,
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_9.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7238/cough/0091.wav",
-      "duration": 0.37223806091748346,
-      "start_time": 5.689837130375817,
-      "speaker_id": "7238"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6531/laugh/0116.wav",
-      "duration": 1.34,
-      "start_time": 9.700607944566212,
-      "speaker_id": "6531"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/9022/laugh/0056.wav",
-      "duration": 1.04,
-      "start_time": 26.944776126832412,
-      "speaker_id": "9022"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025818.json b/conversations/conv_025818.json
deleted file mode 100644
index 4909b131cae2f2dd60797dc7036921dcb14e1b04..0000000000000000000000000000000000000000
--- a/conversations/conv_025818.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.8900821953775235,
-      "duration": 4.8900821953775235,
-      "start_frame": 0,
-      "duration_frames": 78241,
-      "overlap": false,
-      "utterance_id": "2026-81609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81609.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.436323182174704,
-      "end_time": 8.784956357186427,
-      "duration": 3.348633175011724,
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-      "utterance_id": "5445-21280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21280.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.741210617156982,
-      "end_time": 14.210946825881148,
-      "duration": 4.469736208724167,
-      "start_frame": 155859,
-      "duration_frames": 71515,
-      "overlap": true,
-      "utterance_id": "8080-274558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-274558.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.40359972336828,
-      "end_time": 21.327453118206638,
-      "duration": 5.923853394838356,
-      "start_frame": 246457,
-      "duration_frames": 94781,
-      "overlap": false,
-      "utterance_id": "5445-21280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21280.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 53578
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.011876201859923,
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-      "duration_frames": 97919,
-      "overlap": true,
-      "utterance_id": "2026-81608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.294903508048804,
-      "end_time": 32.0,
-      "duration": 2.7050964919511955,
-      "start_frame": 468718,
-      "duration_frames": 43281,
-      "overlap": false,
-      "utterance_id": "8080-274558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-274558.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 71515
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
-      "duration": 0.23598639455782314,
-      "start_time": 24.989217358556786
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2026/laugh/0000.wav",
-      "duration": 1.7769532272474966,
-      "start_time": 27.412259788134953,
-      "speaker_id": "2026"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025822.json b/conversations/conv_025822.json
deleted file mode 100644
index 98ff7ac153e1c3b7ca2617508ede0d6b9533a7f2..0000000000000000000000000000000000000000
--- a/conversations/conv_025822.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.1413164644828,
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-      "start_frame": 0,
-      "duration_frames": 98261,
-      "overlap": false,
-      "utterance_id": "4005-7258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7258.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.8270196108214884,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 0
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-    {
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-      "start_time": 12.715017488931547,
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-      "overlap": false,
-      "utterance_id": "4110-11535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11535.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.63162995761792,
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-      "duration": 4.328430025756264,
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-      "overlap": false,
-      "utterance_id": "4005-14905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-14905.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.694629031414884,
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-      "utterance_id": "4110-11528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11528.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.124789650307974,
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-      "duration": 0.8752103496920256,
-      "start_frame": 497996,
-      "duration_frames": 14003,
-      "overlap": false,
-      "utterance_id": "4005-7262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7262.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "duration": 0.76,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4110/cough/0055.wav",
-      "duration": 1.36,
-      "start_time": 11.245125929106685,
-      "speaker_id": "4110"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 29.999259506056458,
-      "speaker_id": "4005"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025823.json b/conversations/conv_025823.json
deleted file mode 100644
index 98cd75916e7e927f765a609be09ea01984ba4ee2..0000000000000000000000000000000000000000
--- a/conversations/conv_025823.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7079-2343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-2343.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.129190647304016,
-      "end_time": 9.914232605280656,
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-      "utterance_id": "4217-9052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9052.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2148-6981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6981.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.180620376175924,
-      "end_time": 20.814308124339554,
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-      "start_frame": 242889,
-      "duration_frames": 90139,
-      "overlap": false,
-      "utterance_id": "4217-9052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9052.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 60560
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.583304149160718,
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-      "utterance_id": "2148-6984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6984.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.51231345800345,
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-      "utterance_id": "7079-2343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-2343.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 86198
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_025834.json b/conversations/conv_025834.json
deleted file mode 100644
index 32bdcd9b90e72c6879327f94881752c1ed032144..0000000000000000000000000000000000000000
--- a/conversations/conv_025834.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4071-39616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39616.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4837-285896",
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-      "real_speaker_id": "4837",
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-      "segment_id": "seg0002",
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-      "utterance_id": "4071-176278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-176278.flac |",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "overlap": false,
-      "utterance_id": "4071-39616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39616.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 138889
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 16.561632653061224,
-      "start_time": 6.187311813287682
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
-      "duration": 0.19673469387755102,
-      "start_time": 6.7044173219412055
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4071/cough/0070.wav",
-      "duration": 0.8662774141047027,
-      "start_time": 7.808329590049371,
-      "speaker_id": "4071"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4071/laugh/0037.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "4071"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025838.json b/conversations/conv_025838.json
deleted file mode 100644
index a090054ef2be9e21f6fff757cb81eca1168736f0..0000000000000000000000000000000000000000
--- a/conversations/conv_025838.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.524832876201192,
-      "duration": 5.524832876201192,
-      "start_frame": 0,
-      "duration_frames": 88397,
-      "overlap": false,
-      "utterance_id": "850-131004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131004.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.291842590493818,
-      "end_time": 10.67368189835169,
-      "duration": 4.381839307857872,
-      "start_frame": 100669,
-      "duration_frames": 70109,
-      "overlap": true,
-      "utterance_id": "5622-41172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-41172.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.349872438528738,
-      "end_time": 16.729648210695473,
-      "duration": 5.379775772166735,
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-      "overlap": true,
-      "utterance_id": "850-131004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131004.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 88397
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.629322313788016,
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-      "duration": 5.864562535458588,
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-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.45850848896335,
-      "end_time": 28.91116823173595,
-      "duration": 5.4526597427726005,
-      "start_frame": 375336,
-      "duration_frames": 87242,
-      "overlap": true,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 93833
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.555820892208125,
-      "end_time": 32.0,
-      "duration": 1.444179107791875,
-      "start_frame": 488893,
-      "duration_frames": 23106,
-      "overlap": false,
-      "utterance_id": "5622-44585",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-44585.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
-      "duration": 20.852471752246903,
-      "start_time": 9.830561831971332
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.7936144932611442,
-      "start_time": 0.15750849096692673
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
-      "duration": 3.798038379174842,
-      "start_time": 2.1741697471240085
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/850/laugh/0049.wav",
-      "duration": 0.7338314597084763,
-      "start_time": 0.14437119591101258,
-      "speaker_id": "850"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/81/laugh/0081.wav",
-      "duration": 1.1999381192462626,
-      "start_time": 16.195900344981258,
-      "speaker_id": "81"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5622/laugh/0068.wav",
-      "duration": 0.8319835060157513,
-      "start_time": 31.168016493984247,
-      "speaker_id": "5622"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025843.json b/conversations/conv_025843.json
deleted file mode 100644
index b32a72f90a4c2fac3980f31c26a5f8ff21494b4d..0000000000000000000000000000000000000000
--- a/conversations/conv_025843.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.602111467117308,
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-      "overlap": false,
-      "utterance_id": "868-131294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131294.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.705925159465423,
-      "end_time": 10.025953440298402,
-      "duration": 5.32002828083298,
-      "start_frame": 75294,
-      "duration_frames": 85120,
-      "overlap": false,
-      "utterance_id": "6415-116629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-116629.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.968587586613827,
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-      "duration_frames": 81841,
-      "overlap": false,
-      "utterance_id": "8447-284436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-284436.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.544115162170243,
-      "end_time": 19.60425723699202,
-      "duration": 3.0601420748217754,
-      "start_frame": 264705,
-      "duration_frames": 48962,
-      "overlap": false,
-      "utterance_id": "868-131295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131295.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.481961395560585,
-      "end_time": 24.531679792779784,
-      "duration": 4.049718397219198,
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-      "duration_frames": 64795,
-      "overlap": false,
-      "utterance_id": "8447-284448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-284448.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.79786230001685,
-      "end_time": 28.58353572343949,
-      "duration": 3.78567342342264,
-      "start_frame": 396765,
-      "duration_frames": 60570,
-      "overlap": false,
-      "utterance_id": "6415-116629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-116629.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 85120
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.077140568751286,
-      "end_time": 32.0,
-      "duration": 2.922859431248714,
-      "start_frame": 465234,
-      "duration_frames": 46765,
-      "overlap": false,
-      "utterance_id": "868-131294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131294.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 73633
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/868/laugh/0047.wav",
-      "duration": 1.694579632719105,
-      "start_time": 14.822335276575044,
-      "speaker_id": "868"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/868/cough/0031.wav",
-      "duration": 1.2,
-      "start_time": 19.743512983313963,
-      "speaker_id": "868"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8447/laugh/0111.wav",
-      "duration": 1.48,
-      "start_time": 18.727405518697935,
-      "speaker_id": "8447"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6415/laugh/0025.wav",
-      "duration": 1.6669585502533368,
-      "start_time": 22.87549948255026,
-      "speaker_id": "6415"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025844.json b/conversations/conv_025844.json
deleted file mode 100644
index 40d4c9c768d53b548d9a563afb00936587e24b44..0000000000000000000000000000000000000000
--- a/conversations/conv_025844.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6510-62558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62558.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.259658220472713,
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-      "duration": 4.085804850638429,
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-      "duration_frames": 65372,
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-      "utterance_id": "6510-62558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62558.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 75119
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.11881796060418,
-      "end_time": 16.854893416976918,
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-      "duration_frames": 107777,
-      "overlap": false,
-      "utterance_id": "359-133630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-133630.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.411665648931123,
-      "end_time": 22.966415131803537,
-      "duration": 5.554749482872414,
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-      "overlap": false,
-      "utterance_id": "8771-294523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.63975817403918,
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-      "duration_frames": 101449,
-      "overlap": true,
-      "utterance_id": "359-128761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.947079161422312,
-      "end_time": 32.0,
-      "duration": 1.0529208385776876,
-      "start_frame": 495153,
-      "duration_frames": 16846,
-      "overlap": false,
-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6510/laugh/0069.wav",
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-      "start_time": 2.8026854842957336,
-      "speaker_id": "6510"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/359/laugh/0082.wav",
-      "duration": 0.6552810916615969,
-      "start_time": 16.95854178522043,
-      "speaker_id": "359"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/359/laugh/0101.wav",
-      "duration": 1.16,
-      "start_time": 21.20951763302762,
-      "speaker_id": "359"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6510/laugh/0009.wav",
-      "duration": 1.0781307011426922,
-      "start_time": 30.92186929885731,
-      "speaker_id": "6510"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025852.json b/conversations/conv_025852.json
deleted file mode 100644
index e67f734d4e7f366f0f8d69a7137fc6bac34249e0..0000000000000000000000000000000000000000
--- a/conversations/conv_025852.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.002406341566542,
-      "duration": 4.002406341566542,
-      "start_frame": 0,
-      "duration_frames": 64038,
-      "overlap": false,
-      "utterance_id": "5002-70998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-70998.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.349314744138786,
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-      "duration_frames": 95910,
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-      "utterance_id": "7898-273040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7898-273040.flac |",
-      "real_speaker_id": "7898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.948261824659504,
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-      "real_speaker_id": "7228",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-72876.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.74240936707004,
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-      "utterance_id": "7898-273040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7898-273040.flac |",
-      "real_speaker_id": "7898",
-      "position_frames": 95910
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5002-70998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-70998.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 64038
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5002/laugh/0064.wav",
-      "duration": 1.12,
-      "start_time": 4.169452234463011,
-      "speaker_id": "5002"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7228/laugh/0044.wav",
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-      "speaker_id": "7228"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025855.json b/conversations/conv_025855.json
deleted file mode 100644
index 00991c65a0cf2a05e91c75ec7531095ad6804457..0000000000000000000000000000000000000000
--- a/conversations/conv_025855.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.928575880066478,
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-      "utterance_id": "5319-64075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-64075.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153286.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.790675559731884,
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-      "duration": 3.9798363559776306,
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-      "overlap": false,
-      "utterance_id": "2004-147173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147173.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.766485397125443,
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-      "overlap": false,
-      "utterance_id": "5319-64075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-64075.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 78857
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.10153792595603,
-      "end_time": 28.029435990101206,
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-      "utterance_id": "2004-147981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147981.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.625150656604497,
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-      "duration": 3.3748493433955034,
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-      "duration_frames": 53997,
-      "overlap": false,
-      "utterance_id": "5319-42637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-42637.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5319/laugh/0023.wav",
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-      "event_class": "cough",
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-      "duration": 0.8698911693025446,
-      "start_time": 0,
-      "speaker_id": "5319"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2004/cough/0002.wav",
-      "duration": 0.7072062104142072,
-      "start_time": 24.20923204821203,
-      "speaker_id": "2004"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025859.json b/conversations/conv_025859.json
deleted file mode 100644
index 1083b652d414bb7a6f5efeb03225d2a6de79b91e..0000000000000000000000000000000000000000
--- a/conversations/conv_025859.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 31.08675142910101,
-  "num_speakers": 3,
-  "overlap_rate": 0.25,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1806-143948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143948.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128155.flac |",
-      "real_speaker_id": "1579",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-137572.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1579-128131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128131.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1116",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128131.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 56870
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-      "real_speaker_id": "1116",
-      "position_frames": 63810
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-      "segment_id": "seg0007",
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-      "utterance_id": "1579-128140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128140.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "1806"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1579/laugh/0091.wav",
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025863.json b/conversations/conv_025863.json
deleted file mode 100644
index ac6bac1c5bc2da2eacec9f88cc08f489e026a669..0000000000000000000000000000000000000000
--- a/conversations/conv_025863.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1212-75242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-75242.flac |",
-      "real_speaker_id": "1212",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "5952-8681",
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-      "segment_id": "seg0002",
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-      "utterance_id": "4277-185517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185517.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4277-185517",
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-      "position_frames": 79148
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "speaker_id": "4277"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025875.json b/conversations/conv_025875.json
deleted file mode 100644
index f5aa9025df6fdd8e06f6ad15696a752a827de7cd..0000000000000000000000000000000000000000
--- a/conversations/conv_025875.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5248-34498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34498.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.40331289805145,
-      "end_time": 12.210479236666886,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-283730.flac |",
-      "real_speaker_id": "4422",
-      "position_frames": 0
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-      "start_time": 13.012072086621071,
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-      "utterance_id": "5248-34500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34500.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 16.47390238892588,
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-      "utterance_id": "4422-15542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-15542.flac |",
-      "real_speaker_id": "4422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.90818683202138,
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-      "utterance_id": "4422-23272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-23272.flac |",
-      "real_speaker_id": "4422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.178736581805047,
-      "end_time": 28.982245468978583,
-      "duration": 3.8035088871735354,
-      "start_frame": 402859,
-      "duration_frames": 60856,
-      "overlap": true,
-      "utterance_id": "920-668",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/920-668.flac |",
-      "real_speaker_id": "920",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.294982959785795,
-      "end_time": 32.0,
-      "duration": 1.705017040214205,
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-      "utterance_id": "4422-283730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4422-283730.flac |",
-      "real_speaker_id": "4422",
-      "position_frames": 108914
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_025878.json b/conversations/conv_025878.json
deleted file mode 100644
index f776b8d10cc6fb1fc9bc718d5a4276a13e79a61f..0000000000000000000000000000000000000000
--- a/conversations/conv_025878.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6115-58433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6115-58433.flac |",
-      "real_speaker_id": "6115",
-      "position_frames": 0
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-      "real_speaker_id": "3374",
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-      "utterance_id": "937-148985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-148985.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "6115-58433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6115-58433.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.098797755155893,
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-      "utterance_id": "937-132849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-132849.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3374-298025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3374-298025.flac |",
-      "real_speaker_id": "3374",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025879.json b/conversations/conv_025879.json
deleted file mode 100644
index 8fe0f4b54ac169775b359cc5ce018c951796c78f..0000000000000000000000000000000000000000
--- a/conversations/conv_025879.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-122944.flac |",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_025880.json b/conversations/conv_025880.json
deleted file mode 100644
index 8e284f0e1f673267e46cabc74a60a0f93a10a924..0000000000000000000000000000000000000000
--- a/conversations/conv_025880.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1448/laugh/0077.wav",
-      "duration": 1.12,
-      "start_time": 13.644134156943732,
-      "speaker_id": "1448"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025896.json b/conversations/conv_025896.json
deleted file mode 100644
index 81c0b2ba75ba79dcfb9dd85ebe00082fbc6f5561..0000000000000000000000000000000000000000
--- a/conversations/conv_025896.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.542530292357337,
-      "duration": 5.542530292357337,
-      "start_frame": 0,
-      "duration_frames": 88680,
-      "overlap": false,
-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.271296207192699,
-      "end_time": 10.229941612950094,
-      "duration": 3.9586454057573954,
-      "start_frame": 100340,
-      "duration_frames": 63338,
-      "overlap": false,
-      "utterance_id": "8245-283126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-283126.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.637637487042241,
-      "end_time": 15.965913276044683,
-      "duration": 5.328275789002442,
-      "start_frame": 170202,
-      "duration_frames": 85252,
-      "overlap": false,
-      "utterance_id": "1566-133291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-133291.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.181114011904835,
-      "end_time": 20.613074209690584,
-      "duration": 4.431960197785749,
-      "start_frame": 258897,
-      "duration_frames": 70911,
-      "overlap": false,
-      "utterance_id": "5604-26987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.07381010493632,
-      "end_time": 26.376767987694787,
-      "duration": 5.3029578827584665,
-      "start_frame": 337180,
-      "duration_frames": 84847,
-      "overlap": false,
-      "utterance_id": "8245-274392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-274392.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.659994636620162,
-      "end_time": 30.368510905608854,
-      "duration": 3.7085162689886935,
-      "start_frame": 426559,
-      "duration_frames": 59336,
-      "overlap": false,
-      "utterance_id": "5604-26987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 70911
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.07946080172659,
-      "end_time": 32.0,
-      "duration": 0.9205391982734099,
-      "start_frame": 497271,
-      "duration_frames": 14728,
-      "overlap": false,
-      "utterance_id": "8245-274392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-274392.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 84847
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
-      "duration": 2.3256160664310617,
-      "start_time": 14.46487483329238
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5604/laugh/0099.wav",
-      "duration": 1.92,
-      "start_time": 0,
-      "speaker_id": "5604"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1566/cough/0047.wav",
-      "duration": 0.5254166712579256,
-      "start_time": 14.047395152116469,
-      "speaker_id": "1566"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8245/laugh/0020.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "8245"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8245/cough/0081.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "8245"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025897.json b/conversations/conv_025897.json
deleted file mode 100644
index 25dce0e18cef97d22dbd3ccc0cad3347bc36ce4b..0000000000000000000000000000000000000000
--- a/conversations/conv_025897.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7497868210562477,
-      "duration": 3.7497868210562477,
-      "start_frame": 0,
-      "duration_frames": 59996,
-      "overlap": false,
-      "utterance_id": "5189-56574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-56574.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.759142857712776,
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-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.460135621989355,
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-      "overlap": false,
-      "utterance_id": "5189-37999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-37999.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.83681458068049,
-      "end_time": 23.271707115528137,
-      "duration": 6.43489253484765,
-      "start_frame": 269389,
-      "duration_frames": 102958,
-      "overlap": false,
-      "utterance_id": "1482-140071",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140071.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.95763554212308,
-      "end_time": 27.20055164311864,
-      "duration": 3.242916100995562,
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-      "duration_frames": 51886,
-      "overlap": false,
-      "utterance_id": "5189-56574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-56574.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 59996
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.601177087651944,
-      "end_time": 30.99306607100471,
-      "duration": 3.391888983352763,
-      "start_frame": 441618,
-      "duration_frames": 54270,
-      "overlap": false,
-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 111803
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.29119797574943,
-      "end_time": 32.0,
-      "duration": 0.7088020242505699,
-      "start_frame": 500659,
-      "duration_frames": 11340,
-      "overlap": false,
-      "utterance_id": "1482-140071",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140071.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 102958
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
-      "duration": 16.857955672448323,
-      "start_time": 0.37938999242812554
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
-      "duration": 2.145578231292517,
-      "start_time": 11.332945525806586
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5189/cough/0063.wav",
-      "duration": 0.9114523689599363,
-      "start_time": 0,
-      "speaker_id": "5189"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/525/cough/0052.wav",
-      "duration": 1.329556981951394,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1482/laugh/0094.wav",
-      "duration": 1.0227970890463804,
-      "start_time": 15.661427977289474,
-      "speaker_id": "1482"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/525/laugh/0051.wav",
-      "duration": 1.2786543108922301,
-      "start_time": 30.72134568910777,
-      "speaker_id": "525"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1482/laugh/0098.wav",
-      "duration": 1.4,
-      "start_time": 29.66862479840639,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "1482"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025901.json b/conversations/conv_025901.json
deleted file mode 100644
index dc5221d223de753a0e80df5cbf174e4f4869472e..0000000000000000000000000000000000000000
--- a/conversations/conv_025901.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.589231929565073,
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-      "utterance_id": "2628-153958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153958.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.363018165752157,
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-      "utterance_id": "2628-109663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-109663.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.772259697325687,
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-      "overlap": false,
-      "utterance_id": "1034-121119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1034-121119.flac |",
-      "real_speaker_id": "1034",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.591408958132664,
-      "end_time": 28.244293257639093,
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-      "duration_frames": 90446,
-      "overlap": false,
-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 71531
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.826682048940043,
-      "end_time": 32.0,
-      "duration": 3.173317951059957,
-      "start_frame": 461226,
-      "duration_frames": 50773,
-      "overlap": false,
-      "utterance_id": "2628-153958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153958.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 82263
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2628/cough/0037.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2628/laugh/0060.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "2628"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025906.json b/conversations/conv_025906.json
deleted file mode 100644
index 2bd611e547097ea8a7f6a8ae00ece692eb7f7bb9..0000000000000000000000000000000000000000
--- a/conversations/conv_025906.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123857.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.83408465760656,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7062-80029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-80029.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79633.wav",
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-      "start_time": 23.049679365774487
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_025910.json b/conversations/conv_025910.json
deleted file mode 100644
index 5ba06bd45e7e336573e51d230764199456cf0b01..0000000000000000000000000000000000000000
--- a/conversations/conv_025910.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.243303992560243,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.840467609251214,
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-      "utterance_id": "4063-12915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4063-12915.flac |",
-      "real_speaker_id": "4063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.798234992499739,
-      "end_time": 12.547708375872174,
-      "duration": 6.749473383372435,
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-      "utterance_id": "5606-54667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.252529728048437,
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-      "overlap": false,
-      "utterance_id": "5606-54667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 107991
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.120040088631193,
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-      "utterance_id": "4063-12915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4063-12915.flac |",
-      "real_speaker_id": "4063",
-      "position_frames": 77447
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.20147169304839,
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-      "overlap": false,
-      "utterance_id": "5606-54667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 166505
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.71241815807141,
-      "end_time": 31.243303992560243,
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-      "start_frame": 475398,
-      "duration_frames": 24494,
-      "overlap": true,
-      "utterance_id": "4063-12915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4063-12915.flac |",
-      "real_speaker_id": "4063",
-      "position_frames": 156201
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5606/laugh/0109.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5606/cough/0057.wav",
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-      "start_time": 12.685217730185965,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5606/laugh/0063.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4063/laugh/0016.wav",
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-      "speaker_id": "4063"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025917.json b/conversations/conv_025917.json
deleted file mode 100644
index 29eef802772a66147a71337687617a28639043d5..0000000000000000000000000000000000000000
--- a/conversations/conv_025917.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "5192-19397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5192-19397.flac |",
-      "real_speaker_id": "5192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.487564511740344,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133295.flac |",
-      "real_speaker_id": "1710",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.640562754340356,
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-      "overlap": false,
-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5192-19396.flac |",
-      "real_speaker_id": "5192",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 58390
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5192-19396.flac |",
-      "real_speaker_id": "5192",
-      "position_frames": 52576
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-    {
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-      "duration": 1.2312399404503123,
-      "start_time": 30.376107305309827,
-      "speaker_id": "1731"
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_025926.json b/conversations/conv_025926.json
deleted file mode 100644
index a55ddd75752624037d460b35fe9b62cc21d6bb01..0000000000000000000000000000000000000000
--- a/conversations/conv_025926.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6947-53261",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53261.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156750.flac |",
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-      "utterance_id": "5115-26950",
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-      "real_speaker_id": "5115",
-      "position_frames": 0
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-      "real_speaker_id": "6947",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156755.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.15172653446656,
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-      "duration": 2.8482734655334383,
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-      "utterance_id": "5115-26951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26951.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
-    {
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-      "speaker_id": "6947"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025930.json b/conversations/conv_025930.json
deleted file mode 100644
index 7fca5428ea33594adb8686ed8c77deffd5ad9278..0000000000000000000000000000000000000000
--- a/conversations/conv_025930.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9919.flac |",
-      "real_speaker_id": "3866",
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-    {
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 65414
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-      "real_speaker_id": "3866",
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-      "segment_id": "seg0006",
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-      "real_speaker_id": "3866",
-      "position_frames": 54718
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
-      "duration": 1.975233155705094,
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_025940.json b/conversations/conv_025940.json
deleted file mode 100644
index cd5eab3ddcc62eb15b8741abc1389eec4c04155c..0000000000000000000000000000000000000000
--- a/conversations/conv_025940.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.464373076669435,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5489-10988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-10988.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.588947769589815,
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-      "utterance_id": "161-121897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121897.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 110919,
-      "overlap": false,
-      "utterance_id": "7434-96672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.421625629576777,
-      "end_time": 24.363440043686012,
-      "duration": 5.941814414109233,
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-      "overlap": false,
-      "utterance_id": "161-121898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121898.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.734140735731735,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-10988.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 54353
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "161-121897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121897.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 94223
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_025947.json b/conversations/conv_025947.json
deleted file mode 100644
index 2cd78eceacef8af74b69b7def50eae3eb476e1c3..0000000000000000000000000000000000000000
--- a/conversations/conv_025947.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7000-83696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83696.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7000-83708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83708.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-159056.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96157.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.028349974715844,
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-      "duration": 1.9716500252841556,
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-      "duration_frames": 31546,
-      "overlap": false,
-      "utterance_id": "205-159056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-159056.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 108387
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "7437"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025951.json b/conversations/conv_025951.json
deleted file mode 100644
index 4fbf302dd1560664ddc8a7d538d1f8329f7eef71..0000000000000000000000000000000000000000
--- a/conversations/conv_025951.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.613075619639524,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1175-126220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1175-126220.flac |",
-      "real_speaker_id": "1175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.362334526972559,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 65704,
-      "overlap": true,
-      "utterance_id": "663-128991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128991.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7208",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "1175",
-      "position_frames": 59223
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
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-  ],
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1175"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025956.json b/conversations/conv_025956.json
deleted file mode 100644
index 9da745280d60717931a13c325dd874db75ff1dde..0000000000000000000000000000000000000000
--- a/conversations/conv_025956.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1776-139035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1776-139035.flac |",
-      "real_speaker_id": "1776",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7594",
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-      "real_speaker_id": "639",
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-}
\ No newline at end of file
diff --git a/conversations/conv_025967.json b/conversations/conv_025967.json
deleted file mode 100644
index da9a1bbc09794dd0e536e864fc7ebeeb490bd71f..0000000000000000000000000000000000000000
--- a/conversations/conv_025967.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3889-9915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-9915.flac |",
-      "real_speaker_id": "3889",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-130125.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-159056.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "3889-9914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-9914.flac |",
-      "real_speaker_id": "3889",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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\ No newline at end of file
diff --git a/conversations/conv_025971.json b/conversations/conv_025971.json
deleted file mode 100644
index fced47c2206692ff8cd1f6d76bfc2f52108ccb82..0000000000000000000000000000000000000000
--- a/conversations/conv_025971.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28257.flac |",
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-      "real_speaker_id": "4931",
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-      "real_speaker_id": "55",
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 23.85784317531489,
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-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
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-      "real_speaker_id": "4931",
-      "position_frames": 95855
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_025984.json b/conversations/conv_025984.json
deleted file mode 100644
index d4c2525ea756a39432e6f35f18f89491a11699a4..0000000000000000000000000000000000000000
--- a/conversations/conv_025984.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2971-4275",
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-      "real_speaker_id": "2971",
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-      "real_speaker_id": "4161",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "4402-3066",
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-  "background_events": [],
-  "foreground_events": [
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-    {
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-      "duration": 1.52,
-      "start_time": 30.48,
-      "speaker_id": "4402"
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-}
\ No newline at end of file
diff --git a/conversations/conv_025985.json b/conversations/conv_025985.json
deleted file mode 100644
index 11b1c1aea0c13cdb370ee1722ed832aa91afce6f..0000000000000000000000000000000000000000
--- a/conversations/conv_025985.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_025988.json b/conversations/conv_025988.json
deleted file mode 100644
index 1d15681c152275cb24ad2c96f93695914f7fcd20..0000000000000000000000000000000000000000
--- a/conversations/conv_025988.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_025989.json b/conversations/conv_025989.json
deleted file mode 100644
index 437e1cf5a20e3cf94c790f1de8a6b97be0b1e30a..0000000000000000000000000000000000000000
--- a/conversations/conv_025989.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "3547",
-      "position_frames": 165388
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31920.flac |",
-      "real_speaker_id": "5791",
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\ No newline at end of file
diff --git a/conversations/conv_025992.json b/conversations/conv_025992.json
deleted file mode 100644
index e4948ebe439ee8a069c8b8b855b15fcf607604eb..0000000000000000000000000000000000000000
--- a/conversations/conv_025992.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_026003.json b/conversations/conv_026003.json
deleted file mode 100644
index f2c04752576465fdc9f6460d5c4201686636b5d4..0000000000000000000000000000000000000000
--- a/conversations/conv_026003.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.714752331730168,
-      "duration": 6.714752331730168,
-      "start_frame": 0,
-      "duration_frames": 107436,
-      "overlap": false,
-      "utterance_id": "8388-275212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-275212.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.922074871239947,
-      "end_time": 11.845337300784525,
-      "duration": 4.923262429544577,
-      "start_frame": 110753,
-      "duration_frames": 78772,
-      "overlap": false,
-      "utterance_id": "6127-53038",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-53038.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.553446346985684,
-      "end_time": 14.741042818579157,
-      "duration": 3.1875964715934737,
-      "start_frame": 184855,
-      "duration_frames": 51001,
-      "overlap": true,
-      "utterance_id": "8388-278289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-278289.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.293908837788805,
-      "end_time": 19.61759753921222,
-      "duration": 4.323688701423416,
-      "start_frame": 244702,
-      "duration_frames": 69179,
-      "overlap": false,
-      "utterance_id": "8388-275212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-275212.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 107436
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.884735120616696,
-      "end_time": 23.881009301548307,
-      "duration": 3.9962741809316116,
-      "start_frame": 318155,
-      "duration_frames": 63940,
-      "overlap": false,
-      "utterance_id": "6127-2344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-2344.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.79255251207495,
-      "end_time": 29.452829968082334,
-      "duration": 4.6602774560073845,
-      "start_frame": 396680,
-      "duration_frames": 74564,
-      "overlap": false,
-      "utterance_id": "8388-278289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-278289.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 51001
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.26222514697434,
-      "end_time": 32.0,
-      "duration": 1.737774853025659,
-      "start_frame": 484195,
-      "duration_frames": 27804,
-      "overlap": false,
-      "utterance_id": "8388-278289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-278289.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 125565
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
-      "duration": 0.2245124716553288,
-      "start_time": 30.66822754358798
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8388/laugh/0018.wav",
-      "duration": 1.52,
-      "start_time": 18.09414346047976,
-      "speaker_id": "8388"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8388/laugh/0066.wav",
-      "duration": 0.854714083041781,
-      "start_time": 29.46713558084251,
-      "speaker_id": "8388"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026004.json b/conversations/conv_026004.json
deleted file mode 100644
index 78a876895abfad73fe9d9f859fb88f61b6149c72..0000000000000000000000000000000000000000
--- a/conversations/conv_026004.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.904049217419598,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.7353650777453105,
-      "duration": 4.7353650777453105,
-      "start_frame": 0,
-      "duration_frames": 75765,
-      "overlap": false,
-      "utterance_id": "2143-145731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2143-145731.flac |",
-      "real_speaker_id": "2143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.424955916163426,
-      "end_time": 11.132325996972533,
-      "duration": 5.707370080809107,
-      "start_frame": 86799,
-      "duration_frames": 91317,
-      "overlap": false,
-      "utterance_id": "5147-32136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32136.flac |",
-      "real_speaker_id": "5147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.52996792424732,
-      "end_time": 16.331299892686484,
-      "duration": 4.801331968439165,
-      "start_frame": 184479,
-      "duration_frames": 76821,
-      "overlap": false,
-      "utterance_id": "8226-274369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274369.flac |",
-      "real_speaker_id": "8226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.45366997602348,
-      "end_time": 21.28804707232671,
-      "duration": 4.8343770963032275,
-      "start_frame": 263258,
-      "duration_frames": 77350,
-      "overlap": true,
-      "utterance_id": "5147-32135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32135.flac |",
-      "real_speaker_id": "5147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.6672785196444,
-      "end_time": 26.047990337945343,
-      "duration": 3.3807118183009432,
-      "start_frame": 362676,
-      "duration_frames": 54091,
-      "overlap": false,
-      "utterance_id": "2143-145731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2143-145731.flac |",
-      "real_speaker_id": "2143",
-      "position_frames": 75765
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.048543889443287,
-      "end_time": 30.904049217419598,
-      "duration": 3.85550532797631,
-      "start_frame": 432776,
-      "duration_frames": 61688,
-      "overlap": false,
-      "utterance_id": "8226-274371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274371.flac |",
-      "real_speaker_id": "8226",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.482358088741915,
-      "start_time": 12.632312672689185
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_026012.json b/conversations/conv_026012.json
deleted file mode 100644
index 137b6375e9e63a71c5c1bc90cc88786534115f67..0000000000000000000000000000000000000000
--- a/conversations/conv_026012.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.556621130374675,
-      "duration": 4.556621130374675,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.288369886060142,
-      "end_time": 9.293798267198985,
-      "duration": 4.005428381138843,
-      "start_frame": 84613,
-      "duration_frames": 64086,
-      "overlap": false,
-      "utterance_id": "8425-291444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-291444.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.267405986572987,
-      "end_time": 14.167058244677104,
-      "duration": 3.8996522581041173,
-      "start_frame": 164278,
-      "duration_frames": 62394,
-      "overlap": false,
-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.154134816736713,
-      "end_time": 19.709359762311127,
-      "duration": 4.555224945574413,
-      "start_frame": 242466,
-      "duration_frames": 72883,
-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 72905
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.282500396866453,
-      "end_time": 24.331823226580546,
-      "duration": 4.049322829714095,
-      "start_frame": 324520,
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-      "overlap": false,
-      "utterance_id": "8425-287387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-287387.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.581328385264136,
-      "end_time": 30.870459065528326,
-      "duration": 6.289130680264191,
-      "start_frame": 393301,
-      "duration_frames": 100626,
-      "overlap": false,
-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 62394
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.540136211728875,
-      "end_time": 32.0,
-      "duration": 0.4598637882711252,
-      "start_frame": 504642,
-      "duration_frames": 7357,
-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 145788
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.4019698359478503,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/cough/0073.wav",
-      "duration": 1.02,
-      "start_time": 0,
-      "speaker_id": "1487"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8425/laugh/0061.wav",
-      "duration": 1.22,
-      "start_time": 3.851657456276089,
-      "speaker_id": "8425"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/laugh/0039.wav",
-      "duration": 0.7622344506847492,
-      "start_time": 15.189103676003185,
-      "speaker_id": "1487"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/cough/0077.wav",
-      "duration": 0.8480808344625124,
-      "start_time": 15.519953106866689,
-      "speaker_id": "1487"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8425/laugh/0045.wav",
-      "duration": 1.28,
-      "start_time": 24.391353658223338,
-      "speaker_id": "8425"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026015.json b/conversations/conv_026015.json
deleted file mode 100644
index 845a7977cf7a9b7b4478593d8b5f2d6d86a04bb8..0000000000000000000000000000000000000000
--- a/conversations/conv_026015.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.884786333765213,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.896802767719385,
-      "duration": 4.896802767719385,
-      "start_frame": 0,
-      "duration_frames": 78348,
-      "overlap": false,
-      "utterance_id": "937-131548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-131548.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.6362682808161955,
-      "end_time": 10.741096779403652,
-      "duration": 6.104828498587457,
-      "start_frame": 74180,
-      "duration_frames": 97677,
-      "overlap": true,
-      "utterance_id": "3483-174132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-174132.flac |",
-      "real_speaker_id": "3483",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.79894140734,
-      "end_time": 15.452393690880015,
-      "duration": 3.6534522835400156,
-      "start_frame": 188783,
-      "duration_frames": 58455,
-      "overlap": false,
-      "utterance_id": "937-132849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-132849.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3483-115968",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 97677
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/937/laugh/0110.wav",
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-    {
-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3483/laugh/0005.wav",
-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "3483"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3483/cough/0075.wav",
-      "duration": 0.8159692944952024,
-      "start_time": 31.184030705504796,
-      "speaker_id": "3483"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026019.json b/conversations/conv_026019.json
deleted file mode 100644
index 4d011d70754d57823e4d3428e8e8340339462011..0000000000000000000000000000000000000000
--- a/conversations/conv_026019.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.382367437128982,
-      "duration": 4.382367437128982,
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-      "overlap": false,
-      "utterance_id": "1961-149739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-149739.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.212701141342137,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-88089.flac |",
-      "real_speaker_id": "6406",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "6025-58760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58760.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.510211769684442,
-      "end_time": 21.435512704436935,
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-      "overlap": false,
-      "utterance_id": "6406-88089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-88089.flac |",
-      "real_speaker_id": "6406",
-      "position_frames": 65149
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.98071015376898,
-      "end_time": 27.636902634851438,
-      "duration": 5.656192481082455,
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-      "duration_frames": 90499,
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-      "utterance_id": "6025-58760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58760.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 74562
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.869829990358088,
-      "end_time": 32.0,
-      "duration": 3.130170009641912,
-      "start_frame": 461917,
-      "duration_frames": 50082,
-      "overlap": false,
-      "utterance_id": "6406-89940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-89940.flac |",
-      "real_speaker_id": "6406",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "duration": 0.6,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.6780555199344354,
-      "start_time": 21.14442837247003,
-      "speaker_id": "6025"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026023.json b/conversations/conv_026023.json
deleted file mode 100644
index 063665f237fe5a6d8414a1005f3fe6795304af80..0000000000000000000000000000000000000000
--- a/conversations/conv_026023.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-271826.flac |",
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8057-296395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-296395.flac |",
-      "real_speaker_id": "8057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.815936086503037,
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-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 90144
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.495587186942686,
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-      "duration": 4.504412813057314,
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-      "duration_frames": 72070,
-      "overlap": false,
-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 66062
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "speaker_id": "2284"
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-      "event_class": "laugh",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2284/cough/0013.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026035.json b/conversations/conv_026035.json
deleted file mode 100644
index d21495052a7a66df119e9d6e81c14e0b128bafcb..0000000000000000000000000000000000000000
--- a/conversations/conv_026035.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.941148164132937,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "1804-131525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-131525.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.187442291456168,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123285.flac |",
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1804-170447",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "724-123284",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026039.json b/conversations/conv_026039.json
deleted file mode 100644
index 500ab4aeaa18d48a3568e7d7f7cb187f1e1008e5..0000000000000000000000000000000000000000
--- a/conversations/conv_026039.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "8266-279363",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "5181",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2489.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 109410
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
-      "duration": 0.6760544217687074,
-      "start_time": 25.39300555644432
-    },
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
-      "duration": 0.9133560090702948,
-      "start_time": 21.91711777530705
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8266/cough/0084.wav",
-      "duration": 1.12,
-      "start_time": 0,
-      "speaker_id": "8266"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5181/cough/0128.wav",
-      "duration": 0.9194652506393954,
-      "start_time": 16.871751866359894,
-      "speaker_id": "5181"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026042.json b/conversations/conv_026042.json
deleted file mode 100644
index 1dc293b417fd9a193e1227d71b8bd7a346ceea32..0000000000000000000000000000000000000000
--- a/conversations/conv_026042.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.551119800666466,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.647702864220246,
-      "duration": 5.647702864220246,
-      "start_frame": 0,
-      "duration_frames": 90363,
-      "overlap": false,
-      "utterance_id": "718-129597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129597.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.780013239075934,
-      "end_time": 9.661964575099987,
-      "duration": 3.881951336024052,
-      "start_frame": 92480,
-      "duration_frames": 62111,
-      "overlap": false,
-      "utterance_id": "2045-158081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2045-158081.flac |",
-      "real_speaker_id": "2045",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.310663816483833,
-      "end_time": 13.693627971658339,
-      "duration": 3.382964155174505,
-      "start_frame": 164970,
-      "duration_frames": 54127,
-      "overlap": false,
-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.468190563853708,
-      "end_time": 18.751990326608013,
-      "duration": 4.283799762754304,
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-      "duration_frames": 68540,
-      "overlap": false,
-      "utterance_id": "2045-158081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2045-158081.flac |",
-      "real_speaker_id": "2045",
-      "position_frames": 62111
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.824616756425964,
-      "end_time": 23.435624761937923,
-      "duration": 4.611008005511959,
-      "start_frame": 301193,
-      "duration_frames": 73776,
-      "overlap": true,
-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 54127
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.617346139152374,
-      "end_time": 29.320514609393303,
-      "duration": 4.7031684702409295,
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-      "duration_frames": 75250,
-      "overlap": false,
-      "utterance_id": "718-129597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129597.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 90363
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.280894723541024,
-      "end_time": 31.551119800666466,
-      "duration": 2.270225077125442,
-      "start_frame": 468494,
-      "duration_frames": 36323,
-      "overlap": true,
-      "utterance_id": "2046-178027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-178027.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 13.363475647636907,
-      "start_time": 15.277111875013166
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
-      "duration": 0.14183673469387756,
-      "start_time": 29.958649899206183
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
-      "duration": 0.8380952380952381,
-      "start_time": 21.345355317463884
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/718/laugh/0119.wav",
-      "duration": 1.08,
-      "start_time": 0,
-      "speaker_id": "718"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2045/laugh/0056.wav",
-      "duration": 1.064850070755738,
-      "start_time": 4.5860986327481665,
-      "speaker_id": "2045"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2045/cough/0069.wav",
-      "duration": 1.135466225530523,
-      "start_time": 4.553482963213673,
-      "speaker_id": "2045"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2045/laugh/0020.wav",
-      "duration": 1.24,
-      "start_time": 13.04809140805949,
-      "speaker_id": "2045"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2045/cough/0109.wav",
-      "duration": 0.6568390026811934,
-      "start_time": 18.940129194961717,
-      "speaker_id": "2045"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026045.json b/conversations/conv_026045.json
deleted file mode 100644
index 442e3470dc8c08eb186fccae361f93226d954c79..0000000000000000000000000000000000000000
--- a/conversations/conv_026045.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.144755240878339,
-      "duration": 3.144755240878339,
-      "start_frame": 0,
-      "duration_frames": 50316,
-      "overlap": false,
-      "utterance_id": "690-128665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-128665.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.5736924432112405,
-      "end_time": 7.770291473666785,
-      "duration": 4.196599030455545,
-      "start_frame": 57179,
-      "duration_frames": 67145,
-      "overlap": false,
-      "utterance_id": "596-127685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.063342080711188,
-      "end_time": 12.771399734033213,
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-      "duration_frames": 75328,
-      "overlap": false,
-      "utterance_id": "690-134308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-134308.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.585479579316441,
-      "end_time": 19.659009751077427,
-      "duration": 6.0735301717609875,
-      "start_frame": 217367,
-      "duration_frames": 97176,
-      "overlap": false,
-      "utterance_id": "5002-72876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-72876.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.178256030465935,
-      "end_time": 26.339756909327683,
-      "duration": 6.16150087886175,
-      "start_frame": 322852,
-      "duration_frames": 98584,
-      "overlap": false,
-      "utterance_id": "596-139612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-139612.flac |",
-      "real_speaker_id": "596",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.708527077202266,
-      "end_time": 32.0,
-      "duration": 4.291472922797734,
-      "start_frame": 443336,
-      "duration_frames": 68663,
-      "overlap": false,
-      "utterance_id": "5002-70998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-70998.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 11.996701887407005,
-      "start_time": 12.631238340924016
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
-      "duration": 3.0985034013605444,
-      "start_time": 9.526118584312215
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/596/laugh/0088.wav",
-      "duration": 1.12,
-      "start_time": 7.973714586650891,
-      "speaker_id": "596"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/690/laugh/0025.wav",
-      "duration": 1.6,
-      "start_time": 6.304822650606588,
-      "speaker_id": "690"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5002/laugh/0090.wav",
-      "duration": 0.9414640058341874,
-      "start_time": 19.81615006439745,
-      "speaker_id": "5002"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5002/laugh/0023.wav",
-      "duration": 1.4,
-      "start_time": 29.229459005206014,
-      "speaker_id": "5002"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026053.json b/conversations/conv_026053.json
deleted file mode 100644
index 648a9899d3ebe757c791fac003616a72cd0fa3e0..0000000000000000000000000000000000000000
--- a/conversations/conv_026053.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.150634968546105,
-      "duration": 6.150634968546105,
-      "start_frame": 0,
-      "duration_frames": 98410,
-      "overlap": false,
-      "utterance_id": "6676-280387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-280387.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.721648548517836,
-      "end_time": 11.304068941987698,
-      "duration": 4.582420393469862,
-      "start_frame": 107546,
-      "duration_frames": 73318,
-      "overlap": false,
-      "utterance_id": "3588-54099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-54099.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.425754310224212,
-      "end_time": 16.541501008293935,
-      "duration": 5.115746698069723,
-      "start_frame": 182812,
-      "duration_frames": 81851,
-      "overlap": false,
-      "utterance_id": "3588-180957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-180957.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.860264988665,
-      "end_time": 21.225358189452134,
-      "duration": 4.365093200787133,
-      "start_frame": 269764,
-      "duration_frames": 69841,
-      "overlap": false,
-      "utterance_id": "587-41611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41611.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.61656350085543,
-      "end_time": 26.45666288019683,
-      "duration": 4.840099379341398,
-      "start_frame": 345865,
-      "duration_frames": 77441,
-      "overlap": false,
-      "utterance_id": "6676-280387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-280387.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 98410
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.768588998937396,
-      "end_time": 32.0,
-      "duration": 5.231411001062604,
-      "start_frame": 428297,
-      "duration_frames": 83702,
-      "overlap": false,
-      "utterance_id": "587-41611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41611.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 69841
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 23.736170859295864,
-      "start_time": 4.190295869603893
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_12.wav",
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-      "start_time": 4.754300580238522
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
-      "duration": 2.7948340247676797,
-      "start_time": 24.572507003335154
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6676/laugh/0078.wav",
-      "duration": 0.8665653829108555,
-      "start_time": 0,
-      "speaker_id": "6676"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6676/cough/0059.wav",
-      "duration": 0.49866247699648575,
-      "start_time": 0,
-      "speaker_id": "6676"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3588/laugh/0073.wav",
-      "duration": 1.0807787469665846,
-      "start_time": 9.405299721474979,
-      "speaker_id": "3588"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3588/cough/0080.wav",
-      "duration": 0.9181876706276879,
-      "start_time": 10.416661636530776,
-      "speaker_id": "3588"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/587/cough/0088.wav",
-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "587"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026054.json b/conversations/conv_026054.json
deleted file mode 100644
index 63bf68b2d7994021b674939dd4826878e06e3a7d..0000000000000000000000000000000000000000
--- a/conversations/conv_026054.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.70508554394136,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.727442478772741,
-      "duration": 4.727442478772741,
-      "start_frame": 0,
-      "duration_frames": 75639,
-      "overlap": false,
-      "utterance_id": "8208-256238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.504469660589207,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-249840.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026058.json b/conversations/conv_026058.json
deleted file mode 100644
index 675e7ab14bfad8e2dba4af5b62332e03c196e6d1..0000000000000000000000000000000000000000
--- a/conversations/conv_026058.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "4009-43910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4009-43910.flac |",
-      "real_speaker_id": "4009",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86822.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 89646
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_026062.json b/conversations/conv_026062.json
deleted file mode 100644
index dbcd7e2a9548cee66fcca6b43900fc8bc6d4ff67..0000000000000000000000000000000000000000
--- a/conversations/conv_026062.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2740-288813",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-288813.flac |",
-      "real_speaker_id": "2740",
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-      "real_speaker_id": "3990",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_026069.json b/conversations/conv_026069.json
deleted file mode 100644
index ec51ea53dde35a18a57b69b4ad959fd501c0aee0..0000000000000000000000000000000000000000
--- a/conversations/conv_026069.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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\ No newline at end of file
diff --git a/conversations/conv_026074.json b/conversations/conv_026074.json
deleted file mode 100644
index acba2cf8f9ea734605848d72a18ee613ab916011..0000000000000000000000000000000000000000
--- a/conversations/conv_026074.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6476-57446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-57446.flac |",
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-      "position_frames": 0
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
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-      "speaker_id": 1,
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-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 101592
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.977776358297707,
-      "end_time": 32.0,
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-      "utterance_id": "7762-280917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 153801
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026078.json b/conversations/conv_026078.json
deleted file mode 100644
index 371f003615a4791fa0557a1bc2d5d6a2fa0330ef..0000000000000000000000000000000000000000
--- a/conversations/conv_026078.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
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-      "real_speaker_id": "3994",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "2068",
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-  "background_events": [
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-      "event_class": "Running_water",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026079.json b/conversations/conv_026079.json
deleted file mode 100644
index 94be8aee4de0c6ba1c5acd57d2da554a053208b8..0000000000000000000000000000000000000000
--- a/conversations/conv_026079.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_026081.json b/conversations/conv_026081.json
deleted file mode 100644
index 2091699b3cc8d9b31a8d57b534cdbfc2f87bfa81..0000000000000000000000000000000000000000
--- a/conversations/conv_026081.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4267/laugh/0064.wav",
-      "duration": 1.48,
-      "start_time": 16.47868861980542,
-      "speaker_id": "4267"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1593/laugh/0089.wav",
-      "duration": 0.8708490430517817,
-      "start_time": 16.08850157132165,
-      "speaker_id": "1593"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4267/laugh/0081.wav",
-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "4267"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026086.json b/conversations/conv_026086.json
deleted file mode 100644
index 0699631acfb99038fdd648b71f7e8962d183d7d0..0000000000000000000000000000000000000000
--- a/conversations/conv_026086.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.087133962530337,
-      "duration": 5.087133962530337,
-      "start_frame": 0,
-      "duration_frames": 81394,
-      "overlap": false,
-      "utterance_id": "1363-139304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-139304.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.229186887640502,
-      "end_time": 9.694228610311177,
-      "duration": 3.4650417226706747,
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-      "duration_frames": 55440,
-      "overlap": false,
-      "utterance_id": "1363-135842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.75764819271945,
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-      "duration_frames": 87651,
-      "overlap": true,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.460300334321254,
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-      "overlap": false,
-      "utterance_id": "1363-135842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 55440
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.85727780859779,
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-      "overlap": true,
-      "utterance_id": "1363-135842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 134169
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.0825836233736,
-      "end_time": 32.0,
-      "duration": 4.917416376626399,
-      "start_frame": 433321,
-      "duration_frames": 78678,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 87651
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
-      "duration": 14.219460642275337,
-      "start_time": 1.3952971737489004
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1363/laugh/0012.wav",
-      "duration": 1.4,
-      "start_time": 0,
-      "speaker_id": "1363"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3258/laugh/0055.wav",
-      "duration": 1.1741122152882855,
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-      "speaker_id": "3258"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1363/cough/0053.wav",
-      "duration": 0.45317247319870724,
-      "start_time": 21.551847122113323,
-      "speaker_id": "1363"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1363/laugh/0014.wav",
-      "duration": 0.9152947078299434,
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-      "speaker_id": "1363"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3258/laugh/0030.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "3258"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026096.json b/conversations/conv_026096.json
deleted file mode 100644
index af4c79d7ef465f8af0ffa6d0527c96009412a36c..0000000000000000000000000000000000000000
--- a/conversations/conv_026096.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.5048541862007525,
-      "duration": 4.5048541862007525,
-      "start_frame": 0,
-      "duration_frames": 72077,
-      "overlap": false,
-      "utterance_id": "1844-144486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.967448422657974,
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-      "overlap": false,
-      "utterance_id": "2748-160959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160959.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.513851139719188,
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-      "overlap": false,
-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.833434249038504,
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-      "duration_frames": 87277,
-      "overlap": false,
-      "utterance_id": "2748-160985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.380056897098694,
-      "end_time": 25.758232019239543,
-      "duration": 3.3781751221408483,
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-      "duration_frames": 54050,
-      "overlap": false,
-      "utterance_id": "1844-145713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-145713.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.569548368226293,
-      "end_time": 29.888664394951363,
-      "duration": 4.319116026725069,
-      "start_frame": 409112,
-      "duration_frames": 69105,
-      "overlap": true,
-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 83071
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.407732114635944,
-      "end_time": 32.0,
-      "duration": 1.5922678853640555,
-      "start_frame": 486523,
-      "duration_frames": 25476,
-      "overlap": false,
-      "utterance_id": "2748-160985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 87277
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 16.561632653061224,
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.9136121554471104,
-      "start_time": 20.002831268090258
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1844/laugh/0037.wav",
-      "duration": 1.0544156327443024,
-      "start_time": 22.541995389368346,
-      "speaker_id": "1844"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2284/laugh/0075.wav",
-      "duration": 1.12,
-      "start_time": 26.317260020809922,
-      "speaker_id": "2284"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026097.json b/conversations/conv_026097.json
deleted file mode 100644
index 66ef066dbfa8f43bf6e6a525154b537dc951c733..0000000000000000000000000000000000000000
--- a/conversations/conv_026097.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.97132996157375,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4839-15307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15307.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.83286098481495,
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-      "overlap": true,
-      "utterance_id": "5933-104482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-104482.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.738688513629207,
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-      "utterance_id": "5933-104482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-104482.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 79423
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4839-15305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15305.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.77029255177061,
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-      "overlap": false,
-      "utterance_id": "5933-91994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-91994.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-      "start_time": 14.135709673101502
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2570/laugh/0044.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5933/laugh/0012.wav",
-      "duration": 1.26,
-      "start_time": 21.425044263675648,
-      "speaker_id": "5933"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4839/cough/0001.wav",
-      "duration": 0.92,
-      "start_time": 20.26930088753266,
-      "speaker_id": "4839"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5933/laugh/0013.wav",
-      "duration": 1.147288714256093,
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-      "speaker_id": "5933"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5933/cough/0056.wav",
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-      "start_time": 26.725923177731485,
-      "speaker_id": "5933"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026100.json b/conversations/conv_026100.json
deleted file mode 100644
index 58ff292e69da26716f3afeab6c646c9a0f0bc7d4..0000000000000000000000000000000000000000
--- a/conversations/conv_026100.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.486437660891126,
-      "duration": 4.486437660891126,
-      "start_frame": 0,
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-      "utterance_id": "4791-25378",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25378.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-61957.flac |",
-      "real_speaker_id": "6224",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.95582348366489,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25379.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "6224",
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-      "real_speaker_id": "4791",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.606605247508806,
-      "end_time": 32.0,
-      "duration": 1.3933947524911936,
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-      "duration_frames": 22294,
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-      "utterance_id": "4791-25377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25377.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-      "event_class": "Dog",
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-      "duration": 1.28,
-      "start_time": 30.64812394622081,
-      "speaker_id": "4791"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026107.json b/conversations/conv_026107.json
deleted file mode 100644
index a35ad5be59896847cc6e0baef9de085b71868cc7..0000000000000000000000000000000000000000
--- a/conversations/conv_026107.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.534303907512793,
-      "duration": 4.534303907512793,
-      "start_frame": 0,
-      "duration_frames": 72548,
-      "overlap": false,
-      "utterance_id": "7155-249840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-249840.flac |",
-      "real_speaker_id": "7155",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.067158517126148,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-10644.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-249840.flac |",
-      "real_speaker_id": "7155",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132307.flac |",
-      "real_speaker_id": "923",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7155-249840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-249840.flac |",
-      "real_speaker_id": "7155",
-      "position_frames": 137975
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.429653767150164,
-      "end_time": 28.026068900711778,
-      "duration": 4.596415133561613,
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-      "overlap": false,
-      "utterance_id": "923-132306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132306.flac |",
-      "real_speaker_id": "923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.874557138967816,
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-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_026111.json b/conversations/conv_026111.json
deleted file mode 100644
index dbdfdf173193da40d57db861bd5d992f72a1076c..0000000000000000000000000000000000000000
--- a/conversations/conv_026111.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "637-127579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127579.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.707825352980314,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126671.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 0
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-      "utterance_id": "1714-142291",
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-      "real_speaker_id": "1714",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 60688,
-      "overlap": true,
-      "utterance_id": "637-127597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127597.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "153-126671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126671.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 80130
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.957511098845877,
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-      "start_frame": 399320,
-      "duration_frames": 76704,
-      "overlap": false,
-      "utterance_id": "637-127595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.620201472791027,
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-      "duration": 1.3797985272089726,
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-      "overlap": false,
-      "utterance_id": "153-126671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126671.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 149277
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 2.5258827530362726,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 2.5614421463125105,
-      "speaker_id": "637"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/637/laugh/0004.wav",
-      "duration": 0.5373312350104331,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/153/laugh/0135.wav",
-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "153"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026116.json b/conversations/conv_026116.json
deleted file mode 100644
index a6b4af1f69ea5cbdfb61d8b5a054182c6a0568fc..0000000000000000000000000000000000000000
--- a/conversations/conv_026116.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "duration": 3.7664468811682035,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1341-9206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
-      "real_speaker_id": "1341",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.435846696006385,
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-      "overlap": true,
-      "utterance_id": "8609-283227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8609-283227.flac |",
-      "real_speaker_id": "8609",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 80617,
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-      "utterance_id": "1341-9206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
-      "real_speaker_id": "1341",
-      "position_frames": 60263
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.83755730927929,
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-      "duration_frames": 73539,
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-      "utterance_id": "1260-139266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139266.flac |",
-      "real_speaker_id": "1260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.474283208165605,
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-      "utterance_id": "1341-9206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
-      "real_speaker_id": "1341",
-      "position_frames": 140880
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.377172505406953,
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-      "overlap": false,
-      "utterance_id": "8609-262281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8609-262281.flac |",
-      "real_speaker_id": "8609",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1341/laugh/0024.wav",
-      "duration": 1.1919366533160272,
-      "start_time": 0,
-      "speaker_id": "1341"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8609/laugh/0064.wav",
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-      "start_time": 26.45529738241676,
-      "speaker_id": "8609"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8609/cough/0050.wav",
-      "duration": 0.9888921712891707,
-      "start_time": 31.01110782871083,
-      "speaker_id": "8609"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026127.json b/conversations/conv_026127.json
deleted file mode 100644
index d3390e091522b5d68ee01716a4c066b2caeb7740..0000000000000000000000000000000000000000
--- a/conversations/conv_026127.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
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-      "real_speaker_id": "2929",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135220.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-85685.flac |",
-      "real_speaker_id": "2929",
-      "position_frames": 95297
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.884439062328276,
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-      "utterance_id": "1165-135216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135216.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
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-  "paralinguistic_events": [
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-      "duration": 0.84,
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-      "speaker_id": "2929"
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-}
\ No newline at end of file
diff --git a/conversations/conv_026131.json b/conversations/conv_026131.json
deleted file mode 100644
index 5225cfc5d4e2be260c413293a7731b2b2c021916..0000000000000000000000000000000000000000
--- a/conversations/conv_026131.json
+++ /dev/null
@@ -1,186 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.553324600924034,
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-      "utterance_id": "7062-75816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-75816.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "2237-163673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-163673.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 14.556588781209978,
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-      "duration": 3.575029393861649,
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-      "utterance_id": "7148-82991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-82991.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-163673.flac |",
-      "real_speaker_id": "2237",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-82991.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 57200
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-7763.flac |",
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_026141.json b/conversations/conv_026141.json
deleted file mode 100644
index 53f71b5a44b2abe137dbf0b933c27855b5558d11..0000000000000000000000000000000000000000
--- a/conversations/conv_026141.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "1342",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1920-147026.flac |",
-      "real_speaker_id": "1920",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 16.663130956257813,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-130497.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.757971645063833,
-      "end_time": 26.651408736470174,
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-      "start_frame": 364127,
-      "duration_frames": 62294,
-      "overlap": false,
-      "utterance_id": "1595-132753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-132753.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 68095
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.318643554622053,
-      "end_time": 32.0,
-      "duration": 4.681356445377947,
-      "start_frame": 437098,
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-      "overlap": false,
-      "utterance_id": "1342-133248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133248.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_026146.json b/conversations/conv_026146.json
deleted file mode 100644
index eb29be3eee379c65922b20309d10ed768bce3c08..0000000000000000000000000000000000000000
--- a/conversations/conv_026146.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-39051.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2361/cough/0015.wav",
-      "duration": 1.0101717388615326,
-      "start_time": 3.4981281024253135,
-      "speaker_id": "2361"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/413/laugh/0038.wav",
-      "duration": 1.16,
-      "start_time": 18.894110327909694,
-      "speaker_id": "413"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026150.json b/conversations/conv_026150.json
deleted file mode 100644
index c24aa44609ab20fe14c6e4fe5d62e63fe611cc6e..0000000000000000000000000000000000000000
--- a/conversations/conv_026150.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.230520853915881,
-      "duration": 4.230520853915881,
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-      "overlap": false,
-      "utterance_id": "5082-34548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-34548.flac |",
-      "real_speaker_id": "5082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.671786839945701,
-      "end_time": 10.524349814953318,
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-      "duration_frames": 93641,
-      "overlap": false,
-      "utterance_id": "5082-16015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-16015.flac |",
-      "real_speaker_id": "5082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.874001330286067,
-      "end_time": 17.592111991607997,
-      "duration": 6.718110661321929,
-      "start_frame": 173984,
-      "duration_frames": 107489,
-      "overlap": false,
-      "utterance_id": "708-129393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.60743501104551,
-      "end_time": 24.146132298758026,
-      "duration": 5.538697287712515,
-      "start_frame": 297718,
-      "duration_frames": 88619,
-      "overlap": false,
-      "utterance_id": "5082-34543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-34543.flac |",
-      "real_speaker_id": "5082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.69256688929851,
-      "end_time": 28.26489437451931,
-      "duration": 3.5723274852208005,
-      "start_frame": 395081,
-      "duration_frames": 57157,
-      "overlap": false,
-      "utterance_id": "7608-115034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.34831080022535,
-      "end_time": 32.0,
-      "duration": 2.6516891997746512,
-      "start_frame": 469572,
-      "duration_frames": 42427,
-      "overlap": false,
-      "utterance_id": "5082-34543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-34543.flac |",
-      "real_speaker_id": "5082",
-      "position_frames": 88619
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "start_time": 0.08068367618618182
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-      "start_time": 7.726030726090513
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5082/cough/0030.wav",
-      "duration": 0.4833255017473185,
-      "start_time": 31.51667449825268,
-      "speaker_id": "5082"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026157.json b/conversations/conv_026157.json
deleted file mode 100644
index f8706b74f7e07a63ad9384d9cd6c806dff223cd2..0000000000000000000000000000000000000000
--- a/conversations/conv_026157.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.313000435645357,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.327417990340113,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3513-7741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-7741.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.0127808028093055,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.778777238310527,
-      "end_time": 14.554297327959032,
-      "duration": 3.775520089648506,
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-      "duration_frames": 60408,
-      "overlap": false,
-      "utterance_id": "3513-7741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-7741.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 85238
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.979938171083065,
-      "end_time": 18.364693341722333,
-      "duration": 3.384755170639267,
-      "start_frame": 239679,
-      "duration_frames": 54156,
-      "overlap": true,
-      "utterance_id": "310-129055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 69998
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.318632288168892,
-      "end_time": 24.32889982334833,
-      "duration": 5.0102675351794375,
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-      "duration_frames": 80164,
-      "overlap": false,
-      "utterance_id": "310-129055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 124154
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.0280250983618,
-      "end_time": 31.313000435645357,
-      "duration": 6.284975337283557,
-      "start_frame": 400448,
-      "duration_frames": 100559,
-      "overlap": false,
-      "utterance_id": "3513-163606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-163606.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
-      "duration": 1.7019525232640436,
-      "start_time": 15.980079680405849
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/310/cough/0107.wav",
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-      "start_time": 8.09653084712518,
-      "speaker_id": "310"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026166.json b/conversations/conv_026166.json
deleted file mode 100644
index 0ded194a8338d0732dae787d4295e87446cb9b15..0000000000000000000000000000000000000000
--- a/conversations/conv_026166.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.105697778471109,
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-      "start_frame": 0,
-      "duration_frames": 65691,
-      "overlap": false,
-      "utterance_id": "441-130108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-130108.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.870105744750776,
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-      "utterance_id": "441-128982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128982.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.385531651906533,
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-      "duration": 3.675896121421858,
-      "start_frame": 150168,
-      "duration_frames": 58814,
-      "overlap": false,
-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.661847362603844,
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-      "start_frame": 218589,
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-      "overlap": false,
-      "utterance_id": "441-128988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128988.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.22385022195855,
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-      "duration": 5.932955244004518,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 58814
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.672092916476434,
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-      "duration": 4.503958229883533,
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-      "duration_frames": 72063,
-      "overlap": false,
-      "utterance_id": "441-128988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128988.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 86266
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.36621624950358,
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-      "duration": 1.6337837504964199,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 153741
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/441/laugh/0101.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1563/cough/0001.wav",
-      "duration": 1.2068057782153392,
-      "start_time": 17.97776667375497,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/441/laugh/0063.wav",
-      "duration": 0.5434820654845518,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1563/cough/0058.wav",
-      "duration": 1.0441408551584082,
-      "start_time": 30.955859144841593,
-      "speaker_id": "1563"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026170.json b/conversations/conv_026170.json
deleted file mode 100644
index 3a2a99e4508f6fd8dfc957b4907258d2d018d847..0000000000000000000000000000000000000000
--- a/conversations/conv_026170.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "duration": 6.274927900214756,
-      "start_frame": 0,
-      "duration_frames": 100398,
-      "overlap": false,
-      "utterance_id": "7988-114070",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-114070.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.502143057297182,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7988-113323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-113323.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
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-      "start_time": 0,
-      "speaker_id": "7988"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/960/laugh/0067.wav",
-      "duration": 1.6,
-      "start_time": 18.53160637760729,
-      "speaker_id": "960"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026185.json b/conversations/conv_026185.json
deleted file mode 100644
index e50e0a978849efc405c433e1d609290808204e86..0000000000000000000000000000000000000000
--- a/conversations/conv_026185.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.686351761696791,
-      "duration": 3.686351761696791,
-      "start_frame": 0,
-      "duration_frames": 58981,
-      "overlap": false,
-      "utterance_id": "770-43321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-43321.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.3191824827251,
-      "end_time": 10.171651668958024,
-      "duration": 5.8524691862329234,
-      "start_frame": 69106,
-      "duration_frames": 93639,
-      "overlap": false,
-      "utterance_id": "58-121075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.642838820882258,
-      "end_time": 15.752815058529983,
-      "duration": 5.109976237647725,
-      "start_frame": 170285,
-      "duration_frames": 81759,
-      "overlap": false,
-      "utterance_id": "770-43321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-43321.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 58981
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.173908473754665,
-      "end_time": 21.747908298891033,
-      "duration": 5.573999825136369,
-      "start_frame": 258782,
-      "duration_frames": 89183,
-      "overlap": false,
-      "utterance_id": "1053-132850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-132850.flac |",
-      "real_speaker_id": "1053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.353852161840393,
-      "end_time": 26.445259242263063,
-      "duration": 4.091407080422668,
-      "start_frame": 357661,
-      "duration_frames": 65462,
-      "overlap": false,
-      "utterance_id": "58-121075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 93639
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.581985689280486,
-      "end_time": 29.69311873903583,
-      "duration": 3.111133049755346,
-      "start_frame": 425311,
-      "duration_frames": 49778,
-      "overlap": false,
-      "utterance_id": "770-134592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-134592.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.633504997302975,
-      "end_time": 32.0,
-      "duration": 1.3664950026970253,
-      "start_frame": 490136,
-      "duration_frames": 21863,
-      "overlap": false,
-      "utterance_id": "58-121075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 159101
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_6.wav",
-      "duration": 0.5768027210884353,
-      "start_time": 31.065725388857935
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
-      "duration": 2.022732220173812,
-      "start_time": 1.6874635544595729
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/770/laugh/0020.wav",
-      "duration": 1.36,
-      "start_time": 0,
-      "speaker_id": "770"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/58/cough/0139.wav",
-      "duration": 0.9,
-      "start_time": 6.5928390623175215,
-      "speaker_id": "58"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/770/laugh/0025.wav",
-      "duration": 1.32,
-      "start_time": 27.25016420538817,
-      "speaker_id": "770"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026189.json b/conversations/conv_026189.json
deleted file mode 100644
index 48998f0e396bae3ca4f87117268b2638fc4b2508..0000000000000000000000000000000000000000
--- a/conversations/conv_026189.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.15818013319001,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.277690274357275,
-      "duration": 3.277690274357275,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6701-71401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71401.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.8773156128450235,
-      "end_time": 10.82803732062631,
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-      "overlap": false,
-      "utterance_id": "5007-31609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31609.flac |",
-      "real_speaker_id": "5007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.358627358974793,
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-      "start_frame": 165738,
-      "duration_frames": 92150,
-      "overlap": true,
-      "utterance_id": "8346-244446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244446.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.379037284872442,
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-      "duration": 6.82403876166606,
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-      "duration_frames": 109184,
-      "overlap": false,
-      "utterance_id": "6701-71401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71401.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 52443
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.078512046744166,
-      "end_time": 29.56153517039551,
-      "duration": 4.483023123651344,
-      "start_frame": 401256,
-      "duration_frames": 71728,
-      "overlap": false,
-      "utterance_id": "5007-31603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31603.flac |",
-      "real_speaker_id": "5007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.338453361197242,
-      "end_time": 31.15818013319001,
-      "duration": 1.8197267719927694,
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-      "duration_frames": 29115,
-      "overlap": true,
-      "utterance_id": "6701-71404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71404.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "Dog",
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-      "duration": 0.6165759637188208,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8346/cough/0028.wav",
-      "duration": 0.6938131407466988,
-      "start_time": 9.651975432681619,
-      "speaker_id": "8346"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6701/laugh/0104.wav",
-      "duration": 1.52,
-      "start_time": 15.572535324240686,
-      "speaker_id": "6701"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026193.json b/conversations/conv_026193.json
deleted file mode 100644
index c44517621667c3b9b7c51e12a7e392555ab8a794..0000000000000000000000000000000000000000
--- a/conversations/conv_026193.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4148-183988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-183988.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.5322819670607055,
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-      "utterance_id": "3060-163499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163499.flac |",
-      "real_speaker_id": "3060",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
-      "real_speaker_id": "7732",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.555673987423415,
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-      "utterance_id": "4148-183988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-183988.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 93649
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "3060-163540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.8144247000886,
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-      "utterance_id": "4148-134149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-134149.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "duration": 1.2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_026202.json b/conversations/conv_026202.json
deleted file mode 100644
index c759b2d315d2ac703b60682ea1acde30273b0a39..0000000000000000000000000000000000000000
--- a/conversations/conv_026202.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.008286360503912,
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-      "duration_frames": 64132,
-      "overlap": false,
-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.148482793202536,
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-      "real_speaker_id": "8666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.023748218854,
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-      "duration": 6.838857085803035,
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-      "duration_frames": 109421,
-      "overlap": false,
-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 64132
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-    {
-      "segment_id": "seg0003",
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-  "foreground_events": [
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-      "duration": 1.3182831674591617,
-      "start_time": 29.579748281299292,
-      "speaker_id": "4071"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026214.json b/conversations/conv_026214.json
deleted file mode 100644
index e57febd6f2c2423453da3a6a6b7cc1311459f5d6..0000000000000000000000000000000000000000
--- a/conversations/conv_026214.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2137-155944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-155944.flac |",
-      "real_speaker_id": "2137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.178352971846383,
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.914025524434543,
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-      "utterance_id": "5230-4879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4879.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.655972757994217,
-      "end_time": 20.094111845812968,
-      "duration": 4.438139087818753,
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-      "duration_frames": 71010,
-      "overlap": false,
-      "utterance_id": "1222-141174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-141174.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.29556758942057,
-      "end_time": 25.9863828196908,
-      "duration": 4.690815230270228,
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-      "duration_frames": 75053,
-      "overlap": false,
-      "utterance_id": "5230-4879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4879.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 70059
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.73574233920023,
-      "end_time": 32.0,
-      "duration": 5.264257660799771,
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-      "utterance_id": "5230-4863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4863.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
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-      "start_time": 0,
-      "speaker_id": "2137"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2137/laugh/0030.wav",
-      "duration": 1.36,
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-      "start_time": 20.121308576241365,
-      "speaker_id": "5230"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026215.json b/conversations/conv_026215.json
deleted file mode 100644
index f2018f3601e22960dc36fe0958b2f46eda730ee6..0000000000000000000000000000000000000000
--- a/conversations/conv_026215.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4425-14497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-284518.flac |",
-      "real_speaker_id": "7826",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.815555065755095,
-      "end_time": 30.20965072035696,
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-      "utterance_id": "7826-284518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-284518.flac |",
-      "real_speaker_id": "7826",
-      "position_frames": 73591
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.266198737903963,
-      "end_time": 32.0,
-      "duration": 0.733801262096037,
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-      "overlap": false,
-      "utterance_id": "4425-14497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
-      "position_frames": 187372
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "start_time": 10.220997015872861,
-      "speaker_id": "4425"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7826/cough/0130.wav",
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-      "duration": 1.1698919689327059,
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-      "speaker_id": "4425"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026218.json b/conversations/conv_026218.json
deleted file mode 100644
index d9129f04c663a38a1d93b8b8d6a68e080a5d8474..0000000000000000000000000000000000000000
--- a/conversations/conv_026218.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.88994938615701,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "2541-135246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-135246.flac |",
-      "real_speaker_id": "2541",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "4973",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-185493.flac |",
-      "real_speaker_id": "2541",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "2553",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2541",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.16035040022869,
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-      "start_frame": 418565,
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-      "overlap": true,
-      "utterance_id": "2553-163728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163728.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_026222.json b/conversations/conv_026222.json
deleted file mode 100644
index 9a040d6ef0b5b98bf0c1dc9c91acdb9c0485d1db..0000000000000000000000000000000000000000
--- a/conversations/conv_026222.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.616278765309517,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "duration": 4.684951103559654,
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-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "speaker_id": "4513"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8499/laugh/0134.wav",
-      "duration": 1.32,
-      "start_time": 8.321127813753321,
-      "speaker_id": "8499"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8629/cough/0050.wav",
-      "duration": 0.7535767403665414,
-      "start_time": 14.532044807627068,
-      "speaker_id": "8629"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8499/laugh/0035.wav",
-      "duration": 0.7132772490294965,
-      "start_time": 21.71031909265547,
-      "speaker_id": "8499"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026229.json b/conversations/conv_026229.json
deleted file mode 100644
index ab120146e85b94059da0ed69095d2dc0c350b63b..0000000000000000000000000000000000000000
--- a/conversations/conv_026229.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.576294563836349,
-      "duration": 4.576294563836349,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3479-153280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153280.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.3162359068614915,
-      "end_time": 10.859489350932584,
-      "duration": 5.543253444071093,
-      "start_frame": 85059,
-      "duration_frames": 88692,
-      "overlap": false,
-      "utterance_id": "2488-155508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155508.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.378037196613132,
-      "end_time": 14.676197558050767,
-      "duration": 4.298160361437634,
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-      "duration_frames": 68770,
-      "overlap": true,
-      "utterance_id": "3479-153280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153280.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 73220
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.902521929186396,
-      "end_time": 19.882588803524705,
-      "duration": 3.98006687433831,
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-      "duration_frames": 63681,
-      "overlap": false,
-      "utterance_id": "2488-155524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155524.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.98386317047604,
-      "end_time": 26.606826621501035,
-      "duration": 6.622963451024994,
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-      "overlap": false,
-      "utterance_id": "8758-296465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-296465.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.849496887486723,
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-      "overlap": false,
-      "utterance_id": "2488-155508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155508.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 88692
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3479/cough/0098.wav",
-      "duration": 1.18,
-      "start_time": 4.683393062365581,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2488/cough/0061.wav",
-      "duration": 0.8059669827901543,
-      "start_time": 20.075467389470127,
-      "speaker_id": "2488"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026234.json b/conversations/conv_026234.json
deleted file mode 100644
index 68af2ae32ce4902e9c6384fd54af39aa65c48ba2..0000000000000000000000000000000000000000
--- a/conversations/conv_026234.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.26403818875386,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.040942385916511,
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-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.134468282027468,
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-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 64655
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.069283789249237,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.784496299097468,
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-      "duration_frames": 90820,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 95224
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.828334540362288,
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-      "duration": 5.074525689045383,
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-      "duration_frames": 81192,
-      "overlap": false,
-      "utterance_id": "1867-148436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1867-148436.flac |",
-      "real_speaker_id": "1867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.763490248053795,
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-      "duration_frames": 56008,
-      "overlap": true,
-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_12.wav",
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-    {
-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "8291"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/laugh/0066.wav",
-      "duration": 0.6923602050699911,
-      "start_time": 31.307639794930008,
-      "speaker_id": "8291"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026238.json b/conversations/conv_026238.json
deleted file mode 100644
index 9beeecbada835bb7a471b08e555663b7609f529e..0000000000000000000000000000000000000000
--- a/conversations/conv_026238.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5661-32892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32892.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "3479-153280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153280.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "5661-32901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32901.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8396-120282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120282.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.607957389054206,
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-      "duration": 6.304673655204974,
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-      "utterance_id": "5661-32891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32891.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.63695703949676,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32901.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 61845
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "speaker_id": "3479"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026242.json b/conversations/conv_026242.json
deleted file mode 100644
index 64cf69024be3ba4515acbde8f1fa4a6df4ab23c3..0000000000000000000000000000000000000000
--- a/conversations/conv_026242.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.3795660477736815,
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-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.028221808013091,
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-      "duration_frames": 83429,
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-      "utterance_id": "3819-134146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134146.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.705684188378049,
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-      "duration": 5.4564703472721074,
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-      "duration_frames": 87303,
-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 86073
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0004",
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-    {
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-    {
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-  "paralinguistic_events": [
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5290/laugh/0035.wav",
-      "duration": 1.2,
-      "start_time": 14.271245277730719,
-      "speaker_id": "5290"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3819/cough/0054.wav",
-      "duration": 0.690209472700557,
-      "start_time": 22.33278520050711,
-      "speaker_id": "3819"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2292/cough/0152.wav",
-      "duration": 0.8085819157950767,
-      "start_time": 22.848805286326087,
-      "speaker_id": "2292"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5290/laugh/0066.wav",
-      "duration": 1.7291066014822243,
-      "start_time": 30.270893398517774,
-      "speaker_id": "5290"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026243.json b/conversations/conv_026243.json
deleted file mode 100644
index 28a641b452d9b01aa85f4c716f9e63d45d4c246e..0000000000000000000000000000000000000000
--- a/conversations/conv_026243.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.0660201173192485,
-      "duration": 4.0660201173192485,
-      "start_frame": 0,
-      "duration_frames": 65056,
-      "overlap": false,
-      "utterance_id": "4345-7636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7636.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.665242214610969,
-      "end_time": 8.203738600459475,
-      "duration": 3.5384963858485063,
-      "start_frame": 74643,
-      "duration_frames": 56615,
-      "overlap": false,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.751960636215138,
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-      "duration": 4.860479040211497,
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-      "duration_frames": 77767,
-      "overlap": true,
-      "utterance_id": "4345-7635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.794082590271113,
-      "end_time": 19.468560206236624,
-      "duration": 4.674477615965512,
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-      "duration_frames": 74791,
-      "overlap": false,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 56615
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.701382966755105,
-      "end_time": 24.05109341705522,
-      "duration": 4.349710450300115,
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-      "duration_frames": 69595,
-      "overlap": false,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 131406
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.718927230258604,
-      "end_time": 29.784864233209966,
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-      "start_frame": 395502,
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-      "overlap": false,
-      "utterance_id": "4345-7635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 77767
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.368682332939628,
-      "end_time": 32.0,
-      "duration": 1.6313176670603724,
-      "start_frame": 485898,
-      "duration_frames": 26101,
-      "overlap": false,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 201001
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4345/cough/0098.wav",
-      "duration": 0.7156377426778942,
-      "start_time": 13.692266931404927,
-      "speaker_id": "4345"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/151/laugh/0028.wav",
-      "duration": 0.9831740158949853,
-      "start_time": 15.166883808780266,
-      "speaker_id": "151"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/151/laugh/0051.wav",
-      "duration": 0.92,
-      "start_time": 18.646121035926743,
-      "speaker_id": "151"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/151/laugh/0061.wav",
-      "duration": 1.6505712995250388,
-      "start_time": 30.34942870047496,
-      "speaker_id": "151"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026255.json b/conversations/conv_026255.json
deleted file mode 100644
index 584d9b1dc889dfdf2cf5fc7cfb60dea0390554ea..0000000000000000000000000000000000000000
--- a/conversations/conv_026255.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.482094313058489,
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-      "overlap": false,
-      "utterance_id": "4680-16042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16042.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.361730373766142,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration": 6.756549321034377,
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-      "overlap": false,
-      "utterance_id": "4680-16041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16041.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.743340942289386,
-      "end_time": 25.301567199020056,
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-      "start_frame": 331893,
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-      "overlap": false,
-      "utterance_id": "4680-16026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16026.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.964044474926403,
-      "end_time": 28.073503937798165,
-      "duration": 3.10945946287176,
-      "start_frame": 399424,
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-      "overlap": true,
-      "utterance_id": "4680-16042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16042.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 87713
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.86091415803772,
-      "end_time": 32.0,
-      "duration": 2.139085841962281,
-      "start_frame": 477774,
-      "duration_frames": 34225,
-      "overlap": false,
-      "utterance_id": "6284-63091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 98140
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4680/laugh/0038.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6284/laugh/0048.wav",
-      "duration": 0.8482853919289688,
-      "start_time": 12.772488272845191,
-      "speaker_id": "6284"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4680/laugh/0065.wav",
-      "duration": 0.7174161920011872,
-      "start_time": 25.45758476655174,
-      "speaker_id": "4680"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4680/cough/0022.wav",
-      "duration": 0.7757258830339606,
-      "start_time": 25.23871535884164,
-      "speaker_id": "4680"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026259.json b/conversations/conv_026259.json
deleted file mode 100644
index fe94631a552173dac6039f474ef7deef8d11231a..0000000000000000000000000000000000000000
--- a/conversations/conv_026259.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "end_time": 5.1398039085200535,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8009-292146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8009-292146.flac |",
-      "real_speaker_id": "8009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.7105733276795245,
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-      "overlap": false,
-      "utterance_id": "1184-135532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135532.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8009-292146.flac |",
-      "real_speaker_id": "8009",
-      "position_frames": 82236
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.760379317131733,
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-      "duration_frames": 92147,
-      "overlap": false,
-      "utterance_id": "1184-135532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135532.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 58339
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.325742817804723,
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-      "duration_frames": 59933,
-      "overlap": true,
-      "utterance_id": "1184-135540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135540.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.28807788385154,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "1365-134804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134804.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "8009"
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-}
\ No newline at end of file
diff --git a/conversations/conv_026263.json b/conversations/conv_026263.json
deleted file mode 100644
index 088cba5c77a3b594bf2cde49549d241ee0fcaba8..0000000000000000000000000000000000000000
--- a/conversations/conv_026263.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3879-174923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-174923.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.7369479448537195,
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-      "duration_frames": 78938,
-      "overlap": false,
-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 71714,
-      "overlap": false,
-      "utterance_id": "3879-173592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
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-    {
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-      "overlap": false,
-      "utterance_id": "2007-132570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-132570.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
-      "duration": 0.19673469387755102,
-      "start_time": 23.067963062798064
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
-      "duration": 2.5541043083900226,
-      "start_time": 3.547862290467989
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6849/cough/0121.wav",
-      "duration": 0.8925464406551737,
-      "start_time": 17.656583256735495,
-      "speaker_id": "6849"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026268.json b/conversations/conv_026268.json
deleted file mode 100644
index 69ca11ecd72e8b56c64593d262d633ecac2a8138..0000000000000000000000000000000000000000
--- a/conversations/conv_026268.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.825967122338782,
-      "duration": 4.825967122338782,
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-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.813796767139151,
-      "end_time": 9.496058031384676,
-      "duration": 3.6822612642455246,
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-      "utterance_id": "7491-114606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-114606.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.663181273144929,
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-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 77215
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.87802929678366,
-      "end_time": 21.481397955695023,
-      "duration": 4.603368658911365,
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-      "duration_frames": 73653,
-      "overlap": false,
-      "utterance_id": "7491-114606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-114606.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 58916
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.609702300345297,
-      "end_time": 24.898733763070464,
-      "duration": 3.289031462725165,
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-      "overlap": false,
-      "utterance_id": "23-124439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.461534440759724,
-      "end_time": 28.843566570242533,
-      "duration": 3.3820321294828086,
-      "start_frame": 407384,
-      "duration_frames": 54112,
-      "overlap": false,
-      "utterance_id": "7491-114606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-114606.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 132569
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.388104732546598,
-      "end_time": 32.0,
-      "duration": 2.611895267453402,
-      "start_frame": 470209,
-      "duration_frames": 41790,
-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 181039
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
-      "duration": 0.24482993197278913,
-      "start_time": 12.864645939068195
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-      "start_time": 7.37581152499667
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1678/laugh/0090.wav",
-      "duration": 0.5067657740219391,
-      "start_time": 5.035059728919055,
-      "speaker_id": "1678"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7491/cough/0092.wav",
-      "duration": 1.34,
-      "start_time": 21.601889524069758,
-      "speaker_id": "7491"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/23/laugh/0073.wav",
-      "duration": 1.7373133578979645,
-      "start_time": 19.860477478637144,
-      "speaker_id": "23"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026275.json b/conversations/conv_026275.json
deleted file mode 100644
index 78c9412f3725801038914e28bbe2657ffc433050..0000000000000000000000000000000000000000
--- a/conversations/conv_026275.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.702113733865673,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.1561741266128855,
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-      "start_frame": 0,
-      "duration_frames": 66498,
-      "overlap": false,
-      "utterance_id": "1392-135659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135659.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.0908965003247335,
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-      "duration": 6.245231009647987,
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-      "duration_frames": 99923,
-      "overlap": false,
-      "utterance_id": "3912-3831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-3831.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.702096911371452,
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-      "duration_frames": 75606,
-      "overlap": false,
-      "utterance_id": "1392-135654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135654.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.90145980575841,
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-      "duration": 4.353394812694611,
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-      "overlap": true,
-      "utterance_id": "2709-158074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2709-158074.flac |",
-      "real_speaker_id": "2709",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.42100493236421,
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-      "duration_frames": 84908,
-      "overlap": false,
-      "utterance_id": "1392-128240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-128240.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.047879491633353,
-      "end_time": 30.702113733865673,
-      "duration": 4.654234242232322,
-      "start_frame": 416766,
-      "duration_frames": 74467,
-      "overlap": true,
-      "utterance_id": "3912-3831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-3831.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 99923
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
-      "duration": 12.132090051582583,
-      "start_time": 9.110994076295373
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_0.wav",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3912/laugh/0090.wav",
-      "duration": 0.98,
-      "start_time": 4.010830875185118,
-      "speaker_id": "3912"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1392/cough/0074.wav",
-      "duration": 1.3239134909808676,
-      "start_time": 10.255234972880258,
-      "speaker_id": "1392"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2709/laugh/0042.wav",
-      "duration": 1.32,
-      "start_time": 14.56124924915614,
-      "speaker_id": "2709"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3912/cough/0099.wav",
-      "duration": 0.40082084237288845,
-      "start_time": 30.839111048927144,
-      "speaker_id": "3912"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026279.json b/conversations/conv_026279.json
deleted file mode 100644
index cb40e9e8d6f94fe3f76ab27cdb6286111d1c0a9b..0000000000000000000000000000000000000000
--- a/conversations/conv_026279.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.278460302241125,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.427784364050669,
-      "duration": 5.427784364050669,
-      "start_frame": 0,
-      "duration_frames": 86844,
-      "overlap": false,
-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.899870008095563,
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-      "utterance_id": "4020-180289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180289.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.982724989438113,
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-      "overlap": false,
-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 86844
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.870594656473372,
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-      "overlap": false,
-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.170445294956977,
-      "end_time": 24.041524634011974,
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-      "duration_frames": 61937,
-      "overlap": false,
-      "utterance_id": "4020-180289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180289.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 52514
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 5.070296780013686,
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-      "duration_frames": 81124,
-      "overlap": false,
-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 145000
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.032405075064144,
-      "end_time": 31.278460302241125,
-      "duration": 2.2460552271769814,
-      "start_frame": 464518,
-      "duration_frames": 35936,
-      "overlap": true,
-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 96358
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
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-      "start_time": 31.46997854329824
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 7.770644712094987
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/laugh/0075.wav",
-      "duration": 1.14,
-      "start_time": 0,
-      "speaker_id": "2013"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/cough/0069.wav",
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-      "start_time": 1.962348540003757,
-      "speaker_id": "2013"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4020/laugh/0031.wav",
-      "duration": 1.26,
-      "start_time": 9.194347520760306,
-      "speaker_id": "4020"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4020/cough/0020.wav",
-      "duration": 0.78,
-      "start_time": 9.229395846707735,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1903/laugh/0032.wav",
-      "duration": 1.06,
-      "start_time": 12.543553283772887,
-      "speaker_id": "1903"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026280.json b/conversations/conv_026280.json
deleted file mode 100644
index e9ad9337dc5816ee9305a1f6462272b5db1e9cf5..0000000000000000000000000000000000000000
--- a/conversations/conv_026280.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.470536424385234,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4017-231846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-231846.flac |",
-      "real_speaker_id": "4017",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.631263926173748,
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-      "utterance_id": "8012-273154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 7.673751342827024,
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-      "utterance_id": "2437-153220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-153220.flac |",
-      "real_speaker_id": "2437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.966010777204751,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273138.flac |",
-      "real_speaker_id": "8012",
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-      "speaker_id": 0,
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-      "utterance_id": "2437-155505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-155505.flac |",
-      "real_speaker_id": "2437",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.263911414067962,
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-      "utterance_id": "4017-231846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-231846.flac |",
-      "real_speaker_id": "4017",
-      "position_frames": 54465
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
-      "start_time": 10.782922510064898
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_026287.json b/conversations/conv_026287.json
deleted file mode 100644
index dc1e65b4aea44104769a99884514ae84cf8e0cce..0000000000000000000000000000000000000000
--- a/conversations/conv_026287.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.249796784986731,
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-      "overlap": false,
-      "utterance_id": "505-125274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125274.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.215287507830356,
-      "end_time": 9.72292092461538,
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-      "duration_frames": 72122,
-      "overlap": false,
-      "utterance_id": "505-125274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125274.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 67996
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.20679993143537,
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-      "overlap": false,
-      "utterance_id": "8328-280925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.56887021399224,
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-      "utterance_id": "161-121898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121898.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.62658408626429,
-      "end_time": 26.44043735792722,
-      "duration": 4.813853271662928,
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-      "overlap": false,
-      "utterance_id": "8328-280925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
-      "position_frames": 81213
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.14148647840262,
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-      "duration": 4.858513521597381,
-      "start_frame": 434263,
-      "duration_frames": 77736,
-      "overlap": false,
-      "utterance_id": "161-121898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121898.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 71568
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/505/cough/0007.wav",
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-      "speaker_id": "505"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8328/laugh/0102.wav",
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-      "event_class": "cough",
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-      "duration": 0.3045681729740557,
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-      "speaker_id": "161"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026291.json b/conversations/conv_026291.json
deleted file mode 100644
index 8bc021c4d4bafda87db1abf4cb53eef73e6b0225..0000000000000000000000000000000000000000
--- a/conversations/conv_026291.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3448-5417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5417.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.790447141873205,
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-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "3448-5417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5417.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 68609
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.328699163541861,
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-      "utterance_id": "542-125348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125348.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.601789365480993,
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-      "utterance_id": "3448-5416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5416.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.719585516959878,
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-      "duration_frames": 63042,
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-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 81713
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.94013570086726,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
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-      "position_frames": 144755
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2068/laugh/0048.wav",
-      "duration": 1.16,
-      "start_time": 25.45781743798272,
-      "speaker_id": "2068"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026296.json b/conversations/conv_026296.json
deleted file mode 100644
index be3dece9ed0eadd4a277b5a0ef0e4057a69eb86d..0000000000000000000000000000000000000000
--- a/conversations/conv_026296.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.89190141327277,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "377-129290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.175885740497138,
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-      "duration_frames": 106930,
-      "overlap": false,
-      "utterance_id": "3866-173230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-173230.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 98293,
-      "overlap": false,
-      "utterance_id": "377-129290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 64626
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.318953889707686,
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-      "utterance_id": "3866-9919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9919.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.10448200438831,
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-      "overlap": true,
-      "utterance_id": "3866-9920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9920.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3866/cough/0081.wav",
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-      "speaker_id": "3866"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026306.json b/conversations/conv_026306.json
deleted file mode 100644
index 8bf4a5e1b21e3a21544dae533cce6c729db4ae49..0000000000000000000000000000000000000000
--- a/conversations/conv_026306.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6863523790595663,
-      "duration": 3.6863523790595663,
-      "start_frame": 0,
-      "duration_frames": 58981,
-      "overlap": false,
-      "utterance_id": "7357-94126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.8053421652327355,
-      "end_time": 10.214674040144512,
-      "duration": 5.409331874911776,
-      "start_frame": 76885,
-      "duration_frames": 86549,
-      "overlap": false,
-      "utterance_id": "3290-14909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-14909.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.824696542977499,
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-      "duration": 3.945608200128299,
-      "start_frame": 173195,
-      "duration_frames": 63129,
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-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.232616718596947,
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-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "3290"
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\ No newline at end of file
diff --git a/conversations/conv_026307.json b/conversations/conv_026307.json
deleted file mode 100644
index 60705cb5a8aaa1a112ccee5fa3f40246c69df8b1..0000000000000000000000000000000000000000
--- a/conversations/conv_026307.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3314-159392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-159392.flac |",
-      "real_speaker_id": "3314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.061995771268977,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.00596087388634,
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-      "utterance_id": "3314-159392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-159392.flac |",
-      "real_speaker_id": "3314",
-      "position_frames": 94336
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.621927476435914,
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-      "utterance_id": "6497-234100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234100.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.535760294019795,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 60970
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "3314",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_026310.json b/conversations/conv_026310.json
deleted file mode 100644
index 3e76c0d079830199bcf637594a0b02ddf7eac1fd..0000000000000000000000000000000000000000
--- a/conversations/conv_026310.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173565.flac |",
-      "real_speaker_id": "3168",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 54120
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.1400499533719213,
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-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
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-      "position_frames": 181618
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_026326.json b/conversations/conv_026326.json
deleted file mode 100644
index 803037be49778ec25e2e6b08af3dc8eceefe23d3..0000000000000000000000000000000000000000
--- a/conversations/conv_026326.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-55449.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "5868",
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-      "real_speaker_id": "5868",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_026330.json b/conversations/conv_026330.json
deleted file mode 100644
index f05ade8b000ba3a916f210fdb3166e02468d509d..0000000000000000000000000000000000000000
--- a/conversations/conv_026330.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7717-105405.flac |",
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-    {
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-    {
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.886678260661817,
-      "end_time": 32.0,
-      "duration": 3.1133217393381827,
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-      "duration_frames": 49813,
-      "overlap": false,
-      "utterance_id": "3356-132542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3356-132542.flac |",
-      "real_speaker_id": "3356",
-      "position_frames": 62370
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
-      "duration": 0.16310657596371883,
-      "start_time": 5.544228875454641
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7717/laugh/0106.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "7717"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2046/cough/0079.wav",
-      "duration": 0.7028208570158744,
-      "start_time": 16.217107934823698,
-      "speaker_id": "2046"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026347.json b/conversations/conv_026347.json
deleted file mode 100644
index 2a57518cc8f385b4c4485d5c5fb851350605cba1..0000000000000000000000000000000000000000
--- a/conversations/conv_026347.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.123455165182863,
-      "duration": 5.123455165182863,
-      "start_frame": 0,
-      "duration_frames": 81975,
-      "overlap": false,
-      "utterance_id": "726-124445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/726-124445.flac |",
-      "real_speaker_id": "726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.2302425922043625,
-      "end_time": 10.584498324078517,
-      "duration": 5.354255731874155,
-      "start_frame": 83683,
-      "duration_frames": 85668,
-      "overlap": false,
-      "utterance_id": "157-126796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-126796.flac |",
-      "real_speaker_id": "157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.41655998275859,
-      "end_time": 15.5135639116757,
-      "duration": 4.0970039289171085,
-      "start_frame": 182664,
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-      "overlap": false,
-      "utterance_id": "6924-114452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-114452.flac |",
-      "real_speaker_id": "6924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.06927636537799,
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-      "overlap": false,
-      "utterance_id": "6924-291609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-291609.flac |",
-      "real_speaker_id": "6924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.288756707218823,
-      "end_time": 26.90721780950844,
-      "duration": 3.618461102289618,
-      "start_frame": 372620,
-      "duration_frames": 57895,
-      "overlap": false,
-      "utterance_id": "6924-291609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-291609.flac |",
-      "real_speaker_id": "6924",
-      "position_frames": 101368
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.092250662073653,
-      "end_time": 30.165597410599432,
-      "duration": 3.073346748525779,
-      "start_frame": 433476,
-      "duration_frames": 49173,
-      "overlap": false,
-      "utterance_id": "6924-291609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-291609.flac |",
-      "real_speaker_id": "6924",
-      "position_frames": 159263
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.437381120235663,
-      "end_time": 32.0,
-      "duration": 1.5626188797643366,
-      "start_frame": 486998,
-      "duration_frames": 25001,
-      "overlap": false,
-      "utterance_id": "6924-114452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-114452.flac |",
-      "real_speaker_id": "6924",
-      "position_frames": 65552
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
-      "duration": 0.31501133786848073,
-      "start_time": 15.988918531784629
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.3921772807154453,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6924/laugh/0012.wav",
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-      "start_time": 23.571921937381806,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6924/cough/0089.wav",
-      "duration": 0.5949776675090807,
-      "start_time": 26.341402089766806,
-      "speaker_id": "6924"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026350.json b/conversations/conv_026350.json
deleted file mode 100644
index dc0fdeeabd4d6989e31036560e5959e8b06e1fa7..0000000000000000000000000000000000000000
--- a/conversations/conv_026350.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.516807348268323,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.771533822628056,
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-      "utterance_id": "7095-88484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88484.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.044368230342869,
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-      "duration_frames": 93619,
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-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.527370678832366,
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-      "duration": 5.788483380289706,
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-      "overlap": false,
-      "utterance_id": "7095-88489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88489.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.934981654967384,
-      "end_time": 22.480746283663077,
-      "duration": 6.545764628695693,
-      "start_frame": 254959,
-      "duration_frames": 104732,
-      "overlap": true,
-      "utterance_id": "4757-1811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.717329121022765,
-      "end_time": 26.639515718739872,
-      "duration": 3.922186597717106,
-      "start_frame": 363477,
-      "duration_frames": 62754,
-      "overlap": true,
-      "utterance_id": "7561-258992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.820997152168502,
-      "end_time": 31.516807348268323,
-      "duration": 3.6958101960998206,
-      "start_frame": 445135,
-      "duration_frames": 59132,
-      "overlap": true,
-      "utterance_id": "4757-1811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 104732
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 2.7619184875266907,
-      "start_time": 1.487191469588079
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_1.wav",
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-      "start_time": 6.434789546836454
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7095/laugh/0080.wav",
-      "duration": 0.8,
-      "start_time": 3.891784890756594,
-      "speaker_id": "7095"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4757/cough/0042.wav",
-      "duration": 1.172994241704973,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/laugh/0017.wav",
-      "duration": 1.5184319898884766,
-      "start_time": 26.850597822160417,
-      "speaker_id": "7561"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026351.json b/conversations/conv_026351.json
deleted file mode 100644
index bdd4f97f4d3bcc06f2f451d92f47b73abfdd62e0..0000000000000000000000000000000000000000
--- a/conversations/conv_026351.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.823041344358014,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.697765167860514,
-      "duration": 3.697765167860514,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.858667156285184,
-      "end_time": 8.112794759213076,
-      "duration": 3.2541276029278916,
-      "start_frame": 77738,
-      "duration_frames": 52066,
-      "overlap": false,
-      "utterance_id": "3607-135982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-135982.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.858549367289699,
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-      "duration": 3.3545644980842058,
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-      "duration_frames": 53673,
-      "overlap": false,
-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 59164
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.56429514649749,
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-      "duration": 5.835897072274101,
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-      "duration_frames": 93374,
-      "overlap": false,
-      "utterance_id": "8138-293531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293531.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.687929095210407,
-      "end_time": 21.734207403940772,
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-      "duration_frames": 48740,
-      "overlap": false,
-      "utterance_id": "3607-135982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-135982.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 52066
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 91850,
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-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 112837
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.74414394364837,
-      "end_time": 31.823041344358014,
-      "duration": 3.078897400709642,
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-      "overlap": false,
-      "utterance_id": "3607-29116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-29116.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 3.780310884509825,
-      "speaker_id": "8246"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3607/laugh/0060.wav",
-      "duration": 0.7310001147688261,
-      "start_time": 7.248305205082236,
-      "speaker_id": "3607"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8138/laugh/0074.wav",
-      "duration": 1.2,
-      "start_time": 13.636474339180605,
-      "speaker_id": "8138"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8246/cough/0084.wav",
-      "duration": 0.6142286308452563,
-      "start_time": 28.5447179825945,
-      "speaker_id": "8246"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026367.json b/conversations/conv_026367.json
deleted file mode 100644
index 070ac2e80742485dc8d653b851cfe8568ffcf5bf..0000000000000000000000000000000000000000
--- a/conversations/conv_026367.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.354926897005069,
-      "duration": 5.354926897005069,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1641-130503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130503.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.2807635464632074,
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-      "duration_frames": 76075,
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-      "utterance_id": "684-131458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-131458.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 82222,
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-      "utterance_id": "1641-130504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130504.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.77204262487477,
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_026371.json b/conversations/conv_026371.json
deleted file mode 100644
index 93e7016dd376ced5dd1f20ad6a920f0033be5382..0000000000000000000000000000000000000000
--- a/conversations/conv_026371.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.199701603061695,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-66462.flac |",
-      "real_speaker_id": "6557",
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-      "utterance_id": "2339-181101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2339-181101.flac |",
-      "real_speaker_id": "2339",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.556957121325997,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-65546.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.863134300673543,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 97624
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.143097357483835,
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-      "utterance_id": "2339-158764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2339-158764.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_026383.json b/conversations/conv_026383.json
deleted file mode 100644
index 0acfee6b30b8906fde35d3202ee3011228aa982b..0000000000000000000000000000000000000000
--- a/conversations/conv_026383.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
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-      "real_speaker_id": "6828",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5468-43611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5468-43611.flac |",
-      "real_speaker_id": "5468",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026384.json b/conversations/conv_026384.json
deleted file mode 100644
index 3f4b9c5e742d5fd31503c6b2b0e50ec60321cac7..0000000000000000000000000000000000000000
--- a/conversations/conv_026384.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-8675.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-163597.flac |",
-      "real_speaker_id": "2481",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15046.flac |",
-      "real_speaker_id": "4701",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15046.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_026388.json b/conversations/conv_026388.json
deleted file mode 100644
index fa4b593c5b273c36ea197fa05727c6ce12c26d57..0000000000000000000000000000000000000000
--- a/conversations/conv_026388.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.324915556886097,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "123-25084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-25084.flac |",
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-    {
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-      "real_speaker_id": "6332",
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-      "segment_id": "seg0002",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-25085.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 82782
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.13561732777898,
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-      "duration": 1.1892982291071164,
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-      "utterance_id": "75-854",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/75-854.flac |",
-      "real_speaker_id": "75",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-      "start_time": 0,
-      "speaker_id": "123"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6332"
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-      "speaker_id": "6332"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/75/laugh/0064.wav",
-      "duration": 1.1,
-      "start_time": 16.065302352004057,
-      "speaker_id": "75"
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-      "event_class": "cough",
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-      "duration": 1.4113037378166682,
-      "start_time": 24.409095388355325,
-      "speaker_id": "75"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_026392.json b/conversations/conv_026392.json
deleted file mode 100644
index 73de6a40dc0f73870b019b8eeb44cc7f41c95304..0000000000000000000000000000000000000000
--- a/conversations/conv_026392.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.77221011254568,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.9231734884995193,
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-      "overlap": false,
-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.105130166981335,
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-      "duration": 6.7347635845914695,
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-      "utterance_id": "8534-216564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216564.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.424920694661997,
-      "end_time": 17.00693624101192,
-      "duration": 5.582015546349924,
-      "start_frame": 182798,
-      "duration_frames": 89312,
-      "overlap": true,
-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 62770
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.228534732227047,
-      "end_time": 24.976160154343958,
-      "duration": 6.747625422116913,
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-      "duration_frames": 107962,
-      "overlap": false,
-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.013460169245487,
-      "end_time": 31.77221011254568,
-      "duration": 5.7587499433001925,
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-      "duration_frames": 92139,
-      "overlap": false,
-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 152082
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
-      "duration": 13.023226790182239,
-      "start_time": 5.07608207955282
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
-      "duration": 3.2998214175684644,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8058/cough/0068.wav",
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-      "speaker_id": "8058"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026395.json b/conversations/conv_026395.json
deleted file mode 100644
index 49b06b83d6e8f00e8ada1592d8c9253550652ffb..0000000000000000000000000000000000000000
--- a/conversations/conv_026395.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2240-148522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148522.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.6542716107866897,
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-      "duration_frames": 54737,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148521.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 7.74257002218693,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137154.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.594853324769698,
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-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.159173829863676,
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-      "utterance_id": "2240-148529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148529.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.061244105479286,
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-      "overlap": false,
-      "utterance_id": "984-137154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137154.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 98934
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.917853649938362,
-      "end_time": 32.0,
-      "duration": 1.0821463500616382,
-      "start_frame": 494685,
-      "duration_frames": 17314,
-      "overlap": false,
-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 70653
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
-    {
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2240/cough/0019.wav",
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-      "start_time": 7.119707395880478,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/311/laugh/0025.wav",
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-      "start_time": 17.45954813980067,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2240/laugh/0093.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/311/cough/0036.wav",
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-      "start_time": 29.91464840544818,
-      "speaker_id": "311"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026403.json b/conversations/conv_026403.json
deleted file mode 100644
index 0e8c257d3af0babea84dbf0aa0b3ab00a182c1e1..0000000000000000000000000000000000000000
--- a/conversations/conv_026403.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "277-127368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-127368.flac |",
-      "real_speaker_id": "277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.2227914962836595,
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-      "duration_frames": 76845,
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-      "utterance_id": "277-122805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-122805.flac |",
-      "real_speaker_id": "277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1621-141595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141595.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.559501091175125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.833916952665792,
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-      "overlap": true,
-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 101999
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.973563910035757,
-      "end_time": 32.0,
-      "duration": 1.0264360899642426,
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-      "duration_frames": 16422,
-      "overlap": false,
-      "utterance_id": "277-122805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-122805.flac |",
-      "real_speaker_id": "277",
-      "position_frames": 76845
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "duration": 1.4,
-      "start_time": 0,
-      "speaker_id": "277"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1621/cough/0127.wav",
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-      "start_time": 12.275783252553163,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1693/laugh/0007.wav",
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-      "start_time": 24.19721928165662,
-      "speaker_id": "1693"
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-}
\ No newline at end of file
diff --git a/conversations/conv_026404.json b/conversations/conv_026404.json
deleted file mode 100644
index adbc0a36164136b4ddc935921c0b69beabd6fd6d..0000000000000000000000000000000000000000
--- a/conversations/conv_026404.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "3926-891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-891.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "5299",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5299-34547.flac |",
-      "real_speaker_id": "5299",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.8218047561983,
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-      "duration": 6.42561239097371,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-174988.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-174988.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 102809
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
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-      "event_class": "Blender",
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-      "duration": 1.16,
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-      "speaker_id": "1734"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_026408.json b/conversations/conv_026408.json
deleted file mode 100644
index 8595e07d2258217bb4a120033ab4fa070632759f..0000000000000000000000000000000000000000
--- a/conversations/conv_026408.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.77122677318721,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.8340093543097904,
-      "duration": 3.8340093543097904,
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-      "duration_frames": 61344,
-      "overlap": false,
-      "utterance_id": "7148-59157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-59157.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.183075119455475,
-      "end_time": 10.815711375741499,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72200.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1926-143879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-143879.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
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-      "utterance_id": "7148-82991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-82991.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1926-147987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.180219949778557,
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-      "start_frame": 498883,
-      "duration_frames": 9456,
-      "overlap": true,
-      "utterance_id": "7285-72200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72200.flac |",
-      "real_speaker_id": "7285",
-      "position_frames": 106122
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "start_time": 30.68,
-      "speaker_id": "7285"
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-}
\ No newline at end of file
diff --git a/conversations/conv_026412.json b/conversations/conv_026412.json
deleted file mode 100644
index 36657bef976940821168267e0c72853ea2b0f874..0000000000000000000000000000000000000000
--- a/conversations/conv_026412.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7559-96247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66985.flac |",
-      "real_speaker_id": "6407",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 56296
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-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "4660-25053",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25053.flac |",
-      "real_speaker_id": "4660",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 123789
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.838756338540385,
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-      "utterance_id": "6407-66985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66985.flac |",
-      "real_speaker_id": "6407",
-      "position_frames": 60763
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "7559-96246",
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-      "real_speaker_id": "7559",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026415.json b/conversations/conv_026415.json
deleted file mode 100644
index 9efa6484c82d305b25aca33a04c5721e545cc157..0000000000000000000000000000000000000000
--- a/conversations/conv_026415.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "6550-65820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53320.flac |",
-      "real_speaker_id": "6550",
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-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "8321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "6550",
-      "position_frames": 75412
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6550/laugh/0070.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026424.json b/conversations/conv_026424.json
deleted file mode 100644
index 1dcdd767123da0110eb9cdab9133cbfc8a0a6d43..0000000000000000000000000000000000000000
--- a/conversations/conv_026424.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.3819762513188,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8337-284519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-284519.flac |",
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026428.json b/conversations/conv_026428.json
deleted file mode 100644
index df957df0d306e766ae489c2482b6f3b4135adbc8..0000000000000000000000000000000000000000
--- a/conversations/conv_026428.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6695",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-86787.flac |",
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-      "utterance_id": "8747-293952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 48288
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.62279629714571,
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252334.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_026429.json b/conversations/conv_026429.json
deleted file mode 100644
index f6935f549406accbd8d49d822c8440c46407769f..0000000000000000000000000000000000000000
--- a/conversations/conv_026429.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.861602559467556,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8468-295198.flac |",
-      "real_speaker_id": "8468",
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-      "real_speaker_id": "4599",
-      "position_frames": 93227
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123506.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 63980
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_026432.json b/conversations/conv_026432.json
deleted file mode 100644
index 9c106c340f05a305e917985c88494ad13411fdcb..0000000000000000000000000000000000000000
--- a/conversations/conv_026432.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1885",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1846",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1846-144452.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_026439.json b/conversations/conv_026439.json
deleted file mode 100644
index 38b73ee239ab38cb912748aff102a3a6aa3f2807..0000000000000000000000000000000000000000
--- a/conversations/conv_026439.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "3657-182397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-182397.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3657-182397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-182397.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 61644
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026442.json b/conversations/conv_026442.json
deleted file mode 100644
index 5f2ba4930da11cbb49a9f4c0fbb8be437e8b62a1..0000000000000000000000000000000000000000
--- a/conversations/conv_026442.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6687-119383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119383.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.876521543881285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119384.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "start_time": 30.6,
-      "speaker_id": "6687"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026445.json b/conversations/conv_026445.json
deleted file mode 100644
index d367de53c3d229a9e1b35ba62e5c573d3073a72c..0000000000000000000000000000000000000000
--- a/conversations/conv_026445.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
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-    {
-      "segment_id": "seg0006",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026449.json b/conversations/conv_026449.json
deleted file mode 100644
index e22abee1e42053d58273dfff5f4283e14bf0e232..0000000000000000000000000000000000000000
--- a/conversations/conv_026449.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_026453.json b/conversations/conv_026453.json
deleted file mode 100644
index b6afd276a8e1d10d47fc6612616cf2e171f79b2f..0000000000000000000000000000000000000000
--- a/conversations/conv_026453.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.32536619146645,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139272.flac |",
-      "real_speaker_id": "1260",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139266.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 171837
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026454.json b/conversations/conv_026454.json
deleted file mode 100644
index 5e7dabfde9a31456e2db7156e6f818b97b287918..0000000000000000000000000000000000000000
--- a/conversations/conv_026454.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-28619.flac |",
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-    {
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-      "real_speaker_id": "6962",
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-      "real_speaker_id": "4936",
-      "position_frames": 105522
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129597.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_026465.json b/conversations/conv_026465.json
deleted file mode 100644
index 69b4b48a7a848170233546f5b3136106c56e163c..0000000000000000000000000000000000000000
--- a/conversations/conv_026465.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "51",
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-      "real_speaker_id": "168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_026469.json b/conversations/conv_026469.json
deleted file mode 100644
index 659110443b1593f4ceed4a24e44adca5a88eeaed..0000000000000000000000000000000000000000
--- a/conversations/conv_026469.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "utterance_id": "1112-1043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1112-1043.flac |",
-      "real_speaker_id": "1112",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "start_time": 28.654148437882505,
-      "speaker_id": "1112"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026473.json b/conversations/conv_026473.json
deleted file mode 100644
index d5628b2a549f7a8f3cc395f4958b942c66f733df..0000000000000000000000000000000000000000
--- a/conversations/conv_026473.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.726195129357095,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5157-47239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47239.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-285176.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121518.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47239.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 108473
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-285176.flac |",
-      "real_speaker_id": "8576",
-      "position_frames": 77903
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 63407,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121518.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 87598
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "77"
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-}
\ No newline at end of file
diff --git a/conversations/conv_026486.json b/conversations/conv_026486.json
deleted file mode 100644
index 01f5b87a5afe99e9426fa79babe0ef2f8c249e9c..0000000000000000000000000000000000000000
--- a/conversations/conv_026486.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-26488.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-19132.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4659-26488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-26488.flac |",
-      "real_speaker_id": "4659",
-      "position_frames": 60784
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "4659",
-      "position_frames": 165657
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026490.json b/conversations/conv_026490.json
deleted file mode 100644
index 2d373a623c91c9930b7cb99734ec4715c51949d8..0000000000000000000000000000000000000000
--- a/conversations/conv_026490.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5660",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-142233.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 0
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8476-269293",
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-      "real_speaker_id": "8476",
-      "position_frames": 107635
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1298-142233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-142233.flac |",
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-      "position_frames": 78398
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_026491.json b/conversations/conv_026491.json
deleted file mode 100644
index e7b667108938d1169b658988102c57d5eb357fcc..0000000000000000000000000000000000000000
--- a/conversations/conv_026491.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2660-173260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-173260.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-173229.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.486705465373284,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2660/laugh/0119.wav",
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-      "start_time": 0,
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-      "speaker_id": "5746"
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-}
\ No newline at end of file
diff --git a/conversations/conv_026500.json b/conversations/conv_026500.json
deleted file mode 100644
index 5307b22d589d40607b27b9f1d5f6eff116526899..0000000000000000000000000000000000000000
--- a/conversations/conv_026500.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2494-156014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156014.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.893155769030319,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156019.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156019.flac |",
-      "real_speaker_id": "2494",
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-      "speaker_id": 2,
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-      "real_speaker_id": "2587",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6690-73075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73075.flac |",
-      "real_speaker_id": "6690",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "speaker_id": "6690"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026507.json b/conversations/conv_026507.json
deleted file mode 100644
index c823a57ef2f9622c7796124696afbe2e1b34e8a8..0000000000000000000000000000000000000000
--- a/conversations/conv_026507.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
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-      "real_speaker_id": "5023",
-      "position_frames": 66885
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 153922
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-  "background_events": [
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-      "event_class": "Blender",
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-      "duration": 1.16,
-      "start_time": 27.286461976551518,
-      "speaker_id": "5023"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026511.json b/conversations/conv_026511.json
deleted file mode 100644
index e186c742084af10837aa8ed80ae35c2206fb2b37..0000000000000000000000000000000000000000
--- a/conversations/conv_026511.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "start_time": 5.791863047940973,
-      "speaker_id": "753"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/55/cough/0103.wav",
-      "duration": 0.5444224783299848,
-      "start_time": 28.341868715348934,
-      "speaker_id": "55"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3845/laugh/0138.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "3845"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026516.json b/conversations/conv_026516.json
deleted file mode 100644
index d2db986f142b17364ac810111490c28be0394989..0000000000000000000000000000000000000000
--- a/conversations/conv_026516.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.309032782163831,
-      "duration": 5.309032782163831,
-      "start_frame": 0,
-      "duration_frames": 84944,
-      "overlap": false,
-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.410468998728289,
-      "end_time": 10.804878213065098,
-      "duration": 5.394409214336808,
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-      "duration_frames": 86310,
-      "overlap": false,
-      "utterance_id": "2294-161707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161707.flac |",
-      "real_speaker_id": "2294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.86555031216583,
-      "end_time": 17.98337725827407,
-      "duration": 6.117826946108242,
-      "start_frame": 189848,
-      "duration_frames": 97885,
-      "overlap": false,
-      "utterance_id": "3368-170951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170951.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.81699365663998,
-      "end_time": 22.36444654921003,
-      "duration": 3.547452892570049,
-      "start_frame": 301071,
-      "duration_frames": 56759,
-      "overlap": false,
-      "utterance_id": "3368-170952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170952.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.844534567080192,
-      "end_time": 26.628037596032307,
-      "duration": 3.7835030289521154,
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-      "duration_frames": 60536,
-      "overlap": false,
-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 84944
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.856834361114903,
-      "end_time": 32.0,
-      "duration": 4.1431656388850975,
-      "start_frame": 445709,
-      "duration_frames": 66290,
-      "overlap": false,
-      "utterance_id": "2294-161714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161714.flac |",
-      "real_speaker_id": "2294",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1444/laugh/0021.wav",
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-      "start_time": 0,
-      "speaker_id": "1444"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2294/laugh/0119.wav",
-      "duration": 1.24,
-      "start_time": 6.360802718748745,
-      "speaker_id": "2294"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3368/laugh/0043.wav",
-      "duration": 1.014483483201751,
-      "start_time": 22.382377116031577,
-      "speaker_id": "3368"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026520.json b/conversations/conv_026520.json
deleted file mode 100644
index 569374bd1c4c00a569c74570739bf0a6aa4d977e..0000000000000000000000000000000000000000
--- a/conversations/conv_026520.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7189-75356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-75356.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.730223042672313,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101578.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7189-74189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-74189.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.831382716829673,
-      "end_time": 24.75907890710521,
-      "duration": 5.927696190275536,
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-      "overlap": false,
-      "utterance_id": "7705-101579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101579.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.453688344951793,
-      "end_time": 29.247845035367156,
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-      "start_frame": 407259,
-      "duration_frames": 60706,
-      "overlap": false,
-      "utterance_id": "7189-77777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-77777.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.79216609730916,
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-      "duration": 2.2078339026908402,
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-      "duration_frames": 35325,
-      "overlap": false,
-      "utterance_id": "4788-94904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-94904.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4788/cough/0055.wav",
-      "duration": 0.5184076531521175,
-      "start_time": 31.13747619878419,
-      "speaker_id": "4788"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026536.json b/conversations/conv_026536.json
deleted file mode 100644
index 1579f3df20b4853fcda087e354819f63807278ed..0000000000000000000000000000000000000000
--- a/conversations/conv_026536.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.62423068053631,
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-      "utterance_id": "534-127538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127538.flac |",
-      "real_speaker_id": "534",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127538.flac |",
-      "real_speaker_id": "534",
-      "position_frames": 64757
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "1825",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127537.flac |",
-      "real_speaker_id": "534",
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-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_026541.json b/conversations/conv_026541.json
deleted file mode 100644
index 388d86fdd852611dcdcc1363155cf5ac58f8a863..0000000000000000000000000000000000000000
--- a/conversations/conv_026541.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1772-135621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3798-16984",
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-      "real_speaker_id": "3798",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2092-145706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145706.flac |",
-      "real_speaker_id": "2092",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3798/laugh/0036.wav",
-      "duration": 0.6660895302702423,
-      "start_time": 6.674632782380997,
-      "speaker_id": "3798"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2092/laugh/0039.wav",
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-      "start_time": 17.255759151953086,
-      "speaker_id": "2092"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1772/laugh/0136.wav",
-      "duration": 1.68,
-      "start_time": 16.108948380896347,
-      "speaker_id": "1772"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1772/cough/0065.wav",
-      "duration": 0.8854599886611869,
-      "start_time": 16.937207456861994,
-      "speaker_id": "1772"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1772/laugh/0138.wav",
-      "duration": 1.52,
-      "start_time": 24.413562975421634,
-      "speaker_id": "1772"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2092/cough/0048.wav",
-      "duration": 0.42606092529669326,
-      "start_time": 28.703743172946798,
-      "speaker_id": "2092"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026546.json b/conversations/conv_026546.json
deleted file mode 100644
index c4961b08c2c09cacb97ae7da35dbba69ebc86ef9..0000000000000000000000000000000000000000
--- a/conversations/conv_026546.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.215403703969256,
-      "duration": 4.215403703969256,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2021-235244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235244.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.718123508023299,
-      "end_time": 8.705797863416674,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-246946.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.183843431228315,
-      "end_time": 13.699828713371275,
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-      "utterance_id": "6747-76101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76101.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.288340849649337,
-      "end_time": 18.05000223273028,
-      "duration": 3.7616613830809413,
-      "start_frame": 228613,
-      "duration_frames": 60186,
-      "overlap": false,
-      "utterance_id": "6747-76101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76101.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 72255
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.376372359583048,
-      "end_time": 23.35603724974359,
-      "duration": 4.979664890160542,
-      "start_frame": 294021,
-      "duration_frames": 79674,
-      "overlap": true,
-      "utterance_id": "1743-142913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142913.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.48395319289397,
-      "end_time": 28.669566764221035,
-      "duration": 4.185613571327065,
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-      "duration_frames": 66969,
-      "overlap": false,
-      "utterance_id": "6747-76101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76101.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 132441
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.32747542469872,
-      "end_time": 32.0,
-      "duration": 2.6725245753012814,
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-      "duration_frames": 42760,
-      "overlap": false,
-      "utterance_id": "2021-246946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-246946.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 63802
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2021/laugh/0050.wav",
-      "duration": 1.34,
-      "start_time": 1.8992747723285244,
-      "speaker_id": "2021"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1743/laugh/0019.wav",
-      "duration": 1.24,
-      "start_time": 21.848103895308235,
-      "speaker_id": "1743"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026550.json b/conversations/conv_026550.json
deleted file mode 100644
index c93dbce0d895c57bc77854566e0f34813a8d14ad..0000000000000000000000000000000000000000
--- a/conversations/conv_026550.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.320612880524473,
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.395731854793473,
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-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "duration": 6.413956418980225,
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-      "overlap": false,
-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 69129
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.338243348489037,
-      "end_time": 24.792030737583328,
-      "duration": 5.453787389094291,
-      "start_frame": 309411,
-      "duration_frames": 87260,
-      "overlap": false,
-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 109968
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.497956715997535,
-      "end_time": 29.61986703934189,
-      "duration": 4.121910323344355,
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-      "overlap": false,
-      "utterance_id": "8193-116804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.074774254468,
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-      "duration": 1.9252257455319999,
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-      "duration_frames": 30803,
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-      "utterance_id": "8193-116804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 65950
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-      "start_time": 21.42874664130239
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8193/cough/0015.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/782/laugh/0101.wav",
-      "duration": 1.16,
-      "start_time": 17.913983437886397,
-      "speaker_id": "782"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026557.json b/conversations/conv_026557.json
deleted file mode 100644
index c5db4cec582beffe61f2007a0d8b8af643c64e5c..0000000000000000000000000000000000000000
--- a/conversations/conv_026557.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5248-34499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34499.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": false,
-      "utterance_id": "6701-71402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71402.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.752884686188358,
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-      "utterance_id": "4441-76262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76262.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 19.297775813433034,
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-      "real_speaker_id": "6701",
-      "position_frames": 109668
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4441-76263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76263.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.718899854826144,
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-      "duration": 1.2811001451738555,
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-      "utterance_id": "6701-71402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71402.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 169233
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_12.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "6701"
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-}
\ No newline at end of file
diff --git a/conversations/conv_026561.json b/conversations/conv_026561.json
deleted file mode 100644
index a4508cbc3a5c4b36ccd740feb683cbd9fcaf7b29..0000000000000000000000000000000000000000
--- a/conversations/conv_026561.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.285944963783259,
-      "duration": 3.285944963783259,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5620-40470",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40470.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.003147379130756,
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-      "start_frame": 64050,
-      "duration_frames": 91648,
-      "overlap": false,
-      "utterance_id": "614-161065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-161065.flac |",
-      "real_speaker_id": "614",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5620-40466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40466.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "7198",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40470.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 52575
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
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-      "start_time": 1.3515897890644866
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_026577.json b/conversations/conv_026577.json
deleted file mode 100644
index 2a9f1b40a5fb94fcfd0a57e9262706a20183f7a2..0000000000000000000000000000000000000000
--- a/conversations/conv_026577.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
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-      "overlap": false,
-      "utterance_id": "6138-93188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.312614600710372,
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-      "overlap": false,
-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 49801
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.093188778516648,
-      "end_time": 26.11839513415319,
-      "duration": 5.025206355636543,
-      "start_frame": 337491,
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-      "overlap": false,
-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.634602593341295,
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-      "duration": 5.365397406658705,
-      "start_frame": 426153,
-      "duration_frames": 85846,
-      "overlap": false,
-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 121488
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.36,
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-      "speaker_id": "6138"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026582.json b/conversations/conv_026582.json
deleted file mode 100644
index 888c5739cec9c2569dcf5a008bac176628edfc67..0000000000000000000000000000000000000000
--- a/conversations/conv_026582.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.712905729586854,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "770-131704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-131704.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2691-156755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156755.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
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-      "speaker_id": 0,
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-      "real_speaker_id": "2691",
-      "position_frames": 52217
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-43321.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156755.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 145614
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "770"
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-    {
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-      "speaker_id": "2691"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026583.json b/conversations/conv_026583.json
deleted file mode 100644
index 36888beeedb8e4d769f929060ec5da2ba13005ed..0000000000000000000000000000000000000000
--- a/conversations/conv_026583.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2816-4136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-4136.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132864.flac |",
-      "real_speaker_id": "699",
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-    },
-    {
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-      "utterance_id": "4495-18533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-18533.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-4136.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 84089
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "4495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.673841051434067,
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-      "overlap": false,
-      "utterance_id": "699-132866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132866.flac |",
-      "real_speaker_id": "699",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4495/cough/0070.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2816/laugh/0041.wav",
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-      "start_time": 14.897442852335647,
-      "speaker_id": "2816"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/699/cough/0016.wav",
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-      "start_time": 31.367194263326567,
-      "speaker_id": "699"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026593.json b/conversations/conv_026593.json
deleted file mode 100644
index 396349cf788acff12562f8e83998f4b0d35d3f18..0000000000000000000000000000000000000000
--- a/conversations/conv_026593.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "6288",
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "6281-1315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
-      "real_speaker_id": "6281",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 21.71558661573953,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 90273
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 28.23307857551861,
-      "end_time": 32.0,
-      "duration": 3.7669214244813887,
-      "start_frame": 451729,
-      "duration_frames": 60270,
-      "overlap": false,
-      "utterance_id": "6281-65531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.7384098552664797,
-      "start_time": 17.71468644884588
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6281/laugh/0086.wav",
-      "duration": 1.24,
-      "start_time": 12.227206173909508,
-      "speaker_id": "6281"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026594.json b/conversations/conv_026594.json
deleted file mode 100644
index e0fb81b707bf8bad4aed67a5d3c0866ea26473ea..0000000000000000000000000000000000000000
--- a/conversations/conv_026594.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.95425344502107,
-      "duration": 6.95425344502107,
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-      "overlap": false,
-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.7491458898916346,
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-      "duration": 6.4813656262199375,
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-      "utterance_id": "1289-288043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288043.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 15.508434017877864,
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-      "duration_frames": 109491,
-      "overlap": false,
-      "utterance_id": "2592-5341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-5341.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 23.137211052064117,
-      "end_time": 27.556372407920804,
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-      "overlap": false,
-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 28.52559915690739,
-      "end_time": 32.0,
-      "duration": 3.47440084309261,
-      "start_frame": 456409,
-      "duration_frames": 55590,
-      "overlap": false,
-      "utterance_id": "2592-5341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-5341.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 109491
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
-      "duration": 1.4624973048754506,
-      "start_time": 17.807147492055797
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2592/laugh/0030.wav",
-      "duration": 1.0214572230889352,
-      "start_time": 7.074214731173499,
-      "speaker_id": "2592"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1289/cough/0114.wav",
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-      "speaker_id": "1289"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1289/cough/0013.wav",
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-      "event_class": "cough",
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-      "start_time": 27.98756372283508,
-      "speaker_id": "2592"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026598.json b/conversations/conv_026598.json
deleted file mode 100644
index 088928a8687dd38876d3689cc2a627e0ae344c23..0000000000000000000000000000000000000000
--- a/conversations/conv_026598.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7764-106805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
-      "real_speaker_id": "7764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129597.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "718-129594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129594.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.791416982276917,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
-      "real_speaker_id": "7764",
-      "position_frames": 77771
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.792382963560787,
-      "end_time": 28.45079322086491,
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-      "overlap": false,
-      "utterance_id": "216-122451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122451.flac |",
-      "real_speaker_id": "216",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129597.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 92988
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026605.json b/conversations/conv_026605.json
deleted file mode 100644
index 3007e6ee2f5bdec53aeff64b4e3e49d6138d1fe2..0000000000000000000000000000000000000000
--- a/conversations/conv_026605.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.439987513508463,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 6.988304762643896,
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-      "utterance_id": "101-126859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126859.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 8.341604146225738,
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-      "utterance_id": "2481-156738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-156738.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.122991801253644,
-      "end_time": 19.95077853659609,
-      "duration": 5.827786735342447,
-      "start_frame": 225967,
-      "duration_frames": 93244,
-      "overlap": false,
-      "utterance_id": "4313-16007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-16007.flac |",
-      "real_speaker_id": "4313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.319054291766953,
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-      "utterance_id": "101-126859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126859.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 111812
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.944815970695203,
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-      "utterance_id": "2481-156738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-156738.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 84481
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4313/cough/0045.wav",
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-      "speaker_id": "4313"
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-}
\ No newline at end of file
diff --git a/conversations/conv_026609.json b/conversations/conv_026609.json
deleted file mode 100644
index c024b7e2c00cfb0d059124db15799fc7e083780b..0000000000000000000000000000000000000000
--- a/conversations/conv_026609.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "4993-40688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4993-40688.flac |",
-      "real_speaker_id": "4993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.731191530383519,
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-      "duration_frames": 83209,
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-      "utterance_id": "3876-174960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174960.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "3876-174953",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.86835086203412,
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-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
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-  "foreground_events": [
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-      "speaker_id": "210"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026612.json b/conversations/conv_026612.json
deleted file mode 100644
index 3c7ae2bd85760edf14c13543f3cc9eb97ce80fd5..0000000000000000000000000000000000000000
--- a/conversations/conv_026612.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.668093866956853,
-      "duration": 3.668093866956853,
-      "start_frame": 0,
-      "duration_frames": 58689,
-      "overlap": false,
-      "utterance_id": "122-129752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-129752.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.316760803308927,
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-      "duration": 6.242618230910718,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "utterance_id": "122-121729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-121729.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.555411406089377,
-      "end_time": 21.20821510810021,
-      "duration": 4.652803702010831,
-      "start_frame": 264886,
-      "duration_frames": 74444,
-      "overlap": false,
-      "utterance_id": "742-128034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.99066602983776,
-      "end_time": 24.934107338500343,
-      "duration": 3.9434413086625817,
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-      "duration_frames": 63095,
-      "overlap": true,
-      "utterance_id": "122-121730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-121730.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.916625482592345,
-      "end_time": 32.0,
-      "duration": 6.0833745174076554,
-      "start_frame": 414666,
-      "duration_frames": 97333,
-      "overlap": false,
-      "utterance_id": "122-121734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-121734.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 10.068152525689715,
-      "start_time": 14.997712181913654
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/742/laugh/0023.wav",
-      "duration": 1.56,
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-      "event_class": "cough",
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-      "duration": 0.7101379030809707,
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-      "speaker_id": "122"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/122/laugh/0076.wav",
-      "duration": 1.4,
-      "start_time": 24.271731511795245,
-      "speaker_id": "122"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 0.9481599043092086,
-      "start_time": 24.94227390285058,
-      "speaker_id": "122"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026613.json b/conversations/conv_026613.json
deleted file mode 100644
index acb3ebb58a55cf21da66373a2fa33d30af5c2089..0000000000000000000000000000000000000000
--- a/conversations/conv_026613.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1743-142912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142912.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.107284138278235,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1509-145699.flac |",
-      "real_speaker_id": "1509",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.761903654179031,
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-      "overlap": true,
-      "utterance_id": "2113-132485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132485.flac |",
-      "real_speaker_id": "2113",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.837566913224045,
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-      "utterance_id": "1743-142914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142914.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.705085004064387,
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-      "duration_frames": 73141,
-      "overlap": false,
-      "utterance_id": "1743-142914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142914.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 107225
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.695289728736764,
-      "end_time": 32.0,
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-      "duration_frames": 36875,
-      "overlap": false,
-      "utterance_id": "1509-145742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1509-145742.flac |",
-      "real_speaker_id": "1509",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-    {
-      "event_class": "Frying",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1743/laugh/0015.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026625.json b/conversations/conv_026625.json
deleted file mode 100644
index e019a99cb9471f5a10465bd3aaa6843b6812ea62..0000000000000000000000000000000000000000
--- a/conversations/conv_026625.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.910890741942065,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1266-136523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-136523.flac |",
-      "real_speaker_id": "1266",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "951",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "951-122301",
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-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026629.json b/conversations/conv_026629.json
deleted file mode 100644
index 20ab13c33669667d995a08a0f8fd389b3b30552a..0000000000000000000000000000000000000000
--- a/conversations/conv_026629.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.088263615868723,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "4289-21393",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4289/laugh/0058.wav",
-      "duration": 1.16,
-      "start_time": 4.614942428859274,
-      "speaker_id": "4289"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4289/cough/0083.wav",
-      "duration": 0.8013616086053368,
-      "start_time": 0,
-      "speaker_id": "4289"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026633.json b/conversations/conv_026633.json
deleted file mode 100644
index bd649a272a42a3e3b8a0088523e67c4d4d5317e7..0000000000000000000000000000000000000000
--- a/conversations/conv_026633.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.159096742557712,
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-      "overlap": false,
-      "utterance_id": "4427-12471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-12471.flac |",
-      "real_speaker_id": "4427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.387122229274713,
-      "end_time": 9.162342262914187,
-      "duration": 4.775220033639475,
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-      "overlap": false,
-      "utterance_id": "4705-16048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-16048.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.831087449441078,
-      "end_time": 15.137437915694816,
-      "duration": 5.306350466253738,
-      "start_frame": 157297,
-      "duration_frames": 84901,
-      "overlap": false,
-      "utterance_id": "4427-12471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-12471.flac |",
-      "real_speaker_id": "4427",
-      "position_frames": 50545
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.619120316863091,
-      "end_time": 20.189060160693806,
-      "duration": 4.569939843830717,
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-      "duration_frames": 73119,
-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.681006733168395,
-      "end_time": 24.899438429904407,
-      "duration": 4.218431696736011,
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-      "duration_frames": 67494,
-      "overlap": false,
-      "utterance_id": "4705-94473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94473.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.635295695183046,
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-      "duration": 3.0997501495868485,
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-      "duration_frames": 49596,
-      "overlap": false,
-      "utterance_id": "4427-20023",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-20023.flac |",
-      "real_speaker_id": "4427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.725464323860912,
-      "end_time": 32.0,
-      "duration": 2.274535676139088,
-      "start_frame": 475607,
-      "duration_frames": 36392,
-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 73119
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.80841714189269,
-      "start_time": 15.79384986207791
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4427/laugh/0051.wav",
-      "duration": 1.16,
-      "start_time": 3.241556365616168,
-      "speaker_id": "4427"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4705/laugh/0013.wav",
-      "duration": 1.2842942996721867,
-      "start_time": 4.452816618693353,
-      "speaker_id": "4705"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6160/laugh/0003.wav",
-      "duration": 0.8856234623817658,
-      "start_time": 15.832737829166408,
-      "speaker_id": "6160"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4705/laugh/0030.wav",
-      "duration": 1.2069926569719545,
-      "start_time": 23.6335180700317,
-      "speaker_id": "4705"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4427/laugh/0108.wav",
-      "duration": 1.0518844483600407,
-      "start_time": 28.871488242316296,
-      "speaker_id": "4427"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4427/cough/0080.wav",
-      "duration": 0.4827190910039466,
-      "start_time": 28.890417156973783,
-      "speaker_id": "4427"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026638.json b/conversations/conv_026638.json
deleted file mode 100644
index 61f978866c3714c2aa110c43d5de2f44ba054752..0000000000000000000000000000000000000000
--- a/conversations/conv_026638.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.905885568228671,
-      "end_time": 10.91478142359795,
-      "duration": 5.008895855369278,
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-      "duration_frames": 80142,
-      "overlap": false,
-      "utterance_id": "4057-183239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-183239.flac |",
-      "real_speaker_id": "4057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.582426865604127,
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-      "overlap": false,
-      "utterance_id": "1977-133046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.53181812037181,
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-      "duration_frames": 61848,
-      "overlap": false,
-      "utterance_id": "3979-10701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.766190218882564,
-      "end_time": 25.88914807553992,
-      "duration": 4.122957856657358,
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-      "duration_frames": 65967,
-      "overlap": false,
-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 82244
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.141671127850906,
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-      "duration": 4.0296294810818045,
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-      "duration_frames": 64474,
-      "overlap": false,
-      "utterance_id": "3979-10702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10702.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.65569907928638,
-      "end_time": 32.0,
-      "duration": 0.3443009207136214,
-      "start_frame": 506491,
-      "duration_frames": 5508,
-      "overlap": false,
-      "utterance_id": "3979-10702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10702.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 64474
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "start_time": 6.871361734199233
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4057/laugh/0100.wav",
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-      "start_time": 8.431682250641058,
-      "speaker_id": "4057"
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-    {
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-      "duration": 0.9500815078771168,
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-      "speaker_id": "1977"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1977/cough/0090.wav",
-      "duration": 1.1819246649057435,
-      "start_time": 21.777384279419035,
-      "speaker_id": "1977"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3979/laugh/0012.wav",
-      "duration": 1.8,
-      "start_time": 24.158746757345813,
-      "speaker_id": "3979"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026644.json b/conversations/conv_026644.json
deleted file mode 100644
index 71f8ddadb58d4eb263af80e3d60b069feddc04f0..0000000000000000000000000000000000000000
--- a/conversations/conv_026644.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4290-14526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.084836404156663,
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-      "utterance_id": "7277-105388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-105388.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 7.3897226913706024,
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-      "duration_frames": 62565,
-      "overlap": true,
-      "utterance_id": "4290-14526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 49134
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.13628464850746,
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-      "overlap": false,
-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.041546343020308,
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-      "utterance_id": "7277-106407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106407.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.401645546825932,
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-      "duration_frames": 97706,
-      "overlap": false,
-      "utterance_id": "4290-14526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 111699
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.053526614824356,
-      "end_time": 32.0,
-      "duration": 1.9464733851756435,
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-      "utterance_id": "7277-106407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106407.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 59448
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4290/laugh/0093.wav",
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-      "start_time": 21.193121985080687,
-      "speaker_id": "4290"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026645.json b/conversations/conv_026645.json
deleted file mode 100644
index a35e44a109db873e50fd9e2e44cca1158a0e6d07..0000000000000000000000000000000000000000
--- a/conversations/conv_026645.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5733-55099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55099.flac |",
-      "real_speaker_id": "5733",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12895.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55099.flac |",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "5733"
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\ No newline at end of file
diff --git a/conversations/conv_026648.json b/conversations/conv_026648.json
deleted file mode 100644
index 8d98dc4ef6bb44a41d67d93dd74090265bcbb186..0000000000000000000000000000000000000000
--- a/conversations/conv_026648.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.693087216983926,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6556.flac |",
-      "real_speaker_id": "3927",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6556.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6556.flac |",
-      "real_speaker_id": "3927",
-      "position_frames": 174875
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "8382-294774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 21.03591016373121,
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-      "utterance_id": "3927-6556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6556.flac |",
-      "real_speaker_id": "3927",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
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-      "position_frames": 66668
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_026652.json b/conversations/conv_026652.json
deleted file mode 100644
index 313f417d5554645766c5971a8ba0165d3d8d3eca..0000000000000000000000000000000000000000
--- a/conversations/conv_026652.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
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-      "real_speaker_id": "3541",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3541-174244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174244.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 71162
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.348795798123525,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026664.json b/conversations/conv_026664.json
deleted file mode 100644
index 10a2e9555c4a38846c66e115869aabeed32b08a6..0000000000000000000000000000000000000000
--- a/conversations/conv_026664.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.687633662422535,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.407848816864582,
-      "duration": 3.407848816864582,
-      "start_frame": 0,
-      "duration_frames": 54525,
-      "overlap": false,
-      "utterance_id": "7258-91906",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91906.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7258-91905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91905.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "720-173578",
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-      "real_speaker_id": "720",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7258-91902",
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-      "real_speaker_id": "7258",
-      "position_frames": 55864
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_026668.json b/conversations/conv_026668.json
deleted file mode 100644
index efba35d8ee41f87bb902e1cd8d4e28ee6f1a65dc..0000000000000000000000000000000000000000
--- a/conversations/conv_026668.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "duration": 5.625014228781018,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130460.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 90000
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1263-139804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-139804.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.98038554921434,
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-      "utterance_id": "1384-130459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130459.flac |",
-      "real_speaker_id": "1384",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.39573445285087,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-141777.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_026672.json b/conversations/conv_026672.json
deleted file mode 100644
index 50212d025a0e4950fcc095f0c3f713399a56b100..0000000000000000000000000000000000000000
--- a/conversations/conv_026672.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "737-123441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.286861373350102,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 50403
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_026679.json b/conversations/conv_026679.json
deleted file mode 100644
index 731d35f18c91290059794bd0b0a429e94b19dfd7..0000000000000000000000000000000000000000
--- a/conversations/conv_026679.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126859.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295759.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-122255.flac |",
-      "real_speaker_id": "201",
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-    {
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-      "utterance_id": "8635-295761",
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-      "real_speaker_id": "8635",
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-      "utterance_id": "201-127786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.30560129738678,
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-      "utterance_id": "8635-295759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295759.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 90218
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/201/laugh/0044.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 15.55663727316156,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8635/cough/0107.wav",
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-      "speaker_id": "8635"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026680.json b/conversations/conv_026680.json
deleted file mode 100644
index 6dabfa18f24383f6e2c1633e6647761cf7ffcf76..0000000000000000000000000000000000000000
--- a/conversations/conv_026680.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34599.flac |",
-      "real_speaker_id": "6209",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34599.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 82780
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1098",
-      "position_frames": 161581
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6209-34599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34599.flac |",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
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-      "duration": 1.36,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026687.json b/conversations/conv_026687.json
deleted file mode 100644
index 0bdea2b73568e5e28b8d0971b6cf932f4d5b165f..0000000000000000000000000000000000000000
--- a/conversations/conv_026687.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.653697573128394,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.465182388229116,
-      "duration": 4.465182388229116,
-      "start_frame": 0,
-      "duration_frames": 71442,
-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.441449341271353,
-      "end_time": 9.152393628132183,
-      "duration": 3.7109442868608293,
-      "start_frame": 87063,
-      "duration_frames": 59375,
-      "overlap": false,
-      "utterance_id": "451-126826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126826.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.308698942431542,
-      "end_time": 16.191297910849222,
-      "duration": 5.882598968417682,
-      "start_frame": 164939,
-      "duration_frames": 94121,
-      "overlap": false,
-      "utterance_id": "797-127183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127183.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.067831801453217,
-      "end_time": 21.28459127251187,
-      "duration": 4.216759471058655,
-      "start_frame": 273085,
-      "duration_frames": 67468,
-      "overlap": false,
-      "utterance_id": "451-126829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126829.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.674939056797175,
-      "end_time": 26.63837595124828,
-      "duration": 4.963436894451102,
-      "start_frame": 346799,
-      "duration_frames": 79414,
-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 71442
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.84269086373429,
-      "end_time": 31.653697573128394,
-      "duration": 4.811006709394103,
-      "start_frame": 429483,
-      "duration_frames": 76976,
-      "overlap": true,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 150856
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
-      "start_time": 10.012860141981303
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
-      "duration": 2.3501627145221207,
-      "start_time": 2.8935768679947516
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/229/laugh/0075.wav",
-      "duration": 1.52,
-      "start_time": 0.0327190297884617,
-      "speaker_id": "229"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/797/laugh/0013.wav",
-      "duration": 1.28,
-      "start_time": 13.589523148773784,
-      "speaker_id": "797"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026691.json b/conversations/conv_026691.json
deleted file mode 100644
index 7d5a373124037c2262e0590ef1e99d08724e2b84..0000000000000000000000000000000000000000
--- a/conversations/conv_026691.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.761059673187886,
-      "duration": 5.761059673187886,
-      "start_frame": 0,
-      "duration_frames": 92176,
-      "overlap": false,
-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.19289924779349,
-      "end_time": 11.147717411619787,
-      "duration": 4.954818163826297,
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-      "duration_frames": 79277,
-      "overlap": false,
-      "utterance_id": "1736-142281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-142281.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.020851508240167,
-      "end_time": 18.15555850922375,
-      "duration": 6.134707000983583,
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-      "overlap": false,
-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 92176
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.296088667907995,
-      "end_time": 22.07450114236216,
-      "duration": 3.7784124744541647,
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-      "duration_frames": 60454,
-      "overlap": false,
-      "utterance_id": "4104-12526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-12526.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.938401494947808,
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-      "start_frame": 367014,
-      "duration_frames": 81049,
-      "overlap": false,
-      "utterance_id": "1736-152007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-152007.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.221047601384594,
-      "end_time": 32.0,
-      "duration": 3.778952398615406,
-      "start_frame": 451536,
-      "duration_frames": 60463,
-      "overlap": false,
-      "utterance_id": "4104-185522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-185522.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8476/laugh/0044.wav",
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-      "start_time": 5.953103006016054,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8476/laugh/0096.wav",
-      "duration": 1.36,
-      "start_time": 10.533470252364898,
-      "speaker_id": "8476"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4104/laugh/0033.wav",
-      "duration": 0.7209304270972619,
-      "start_time": 20.467814870869912,
-      "speaker_id": "4104"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1736/laugh/0006.wav",
-      "duration": 1.4,
-      "start_time": 22.939526789426463,
-      "speaker_id": "1736"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026696.json b/conversations/conv_026696.json
deleted file mode 100644
index 66ee15e79174aee17cffab59e12bb18e827ec515..0000000000000000000000000000000000000000
--- a/conversations/conv_026696.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.842668775699598,
-      "duration": 5.842668775699598,
-      "start_frame": 0,
-      "duration_frames": 93482,
-      "overlap": false,
-      "utterance_id": "4945-29091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4945-29091.flac |",
-      "real_speaker_id": "4945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.33434409384003,
-      "end_time": 9.874680644419534,
-      "duration": 3.5403365505795055,
-      "start_frame": 101349,
-      "duration_frames": 56645,
-      "overlap": false,
-      "utterance_id": "94-3791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3791.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.4485639634409,
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-      "duration_frames": 51090,
-      "overlap": false,
-      "utterance_id": "8095-274345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274345.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.48491881628134,
-      "end_time": 18.258641619222946,
-      "duration": 4.773722802941607,
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-      "duration_frames": 76379,
-      "overlap": true,
-      "utterance_id": "94-3791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3791.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 56645
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.225734456299797,
-      "end_time": 25.57414727228573,
-      "duration": 6.348412815985934,
-      "start_frame": 307611,
-      "duration_frames": 101574,
-      "overlap": true,
-      "utterance_id": "8095-274346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274346.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.318690994926165,
-      "end_time": 32.0,
-      "duration": 5.681309005073835,
-      "start_frame": 421099,
-      "duration_frames": 90900,
-      "overlap": false,
-      "utterance_id": "94-3791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3791.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 133024
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
-      "duration": 23.20729752576612,
-      "start_time": 2.280774639155772
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8095/cough/0103.wav",
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-      "start_time": 18.019832436341954,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/94/laugh/0139.wav",
-      "duration": 1.1527506863612693,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026700.json b/conversations/conv_026700.json
deleted file mode 100644
index ae3a5765ebf7f7b03abed8f02da8813a66492482..0000000000000000000000000000000000000000
--- a/conversations/conv_026700.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.339636135279427,
-      "duration": 4.339636135279427,
-      "start_frame": 0,
-      "duration_frames": 69434,
-      "overlap": false,
-      "utterance_id": "6724-74002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-74002.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.3682773033875035,
-      "end_time": 9.525658785339417,
-      "duration": 4.157381481951912,
-      "start_frame": 85892,
-      "duration_frames": 66518,
-      "overlap": false,
-      "utterance_id": "426-122821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122821.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.205540846134905,
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-      "duration": 6.310187123825575,
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-      "duration_frames": 100962,
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-      "utterance_id": "426-122821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122821.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 66518
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274376.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "426-122819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122819.flac |",
-      "real_speaker_id": "426",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.529719242208245,
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-      "utterance_id": "8225-274375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274375.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/426/laugh/0073.wav",
-      "duration": 0.8653053214751218,
-      "start_time": 9.20581120250122,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8225/laugh/0083.wav",
-      "duration": 1.18,
-      "start_time": 17.725100808829524,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 27.16997845429311,
-      "speaker_id": "426"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026701.json b/conversations/conv_026701.json
deleted file mode 100644
index 16fc7c56aff762a6b40abcf3924851e00adacba7..0000000000000000000000000000000000000000
--- a/conversations/conv_026701.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.376970231844098,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7722714471149033,
-      "duration": 3.7722714471149033,
-      "start_frame": 0,
-      "duration_frames": 60356,
-      "overlap": false,
-      "utterance_id": "6075-57154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57154.flac |",
-      "real_speaker_id": "6075",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.319016022411994,
-      "end_time": 10.618055853079847,
-      "duration": 6.299039830667853,
-      "start_frame": 69104,
-      "duration_frames": 100784,
-      "overlap": false,
-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.690146075792988,
-      "end_time": 16.889268307266075,
-      "duration": 5.199122231473088,
-      "start_frame": 187042,
-      "duration_frames": 83185,
-      "overlap": false,
-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 100784
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.20075874106413,
-      "end_time": 22.934805256661356,
-      "duration": 5.734046515597225,
-      "start_frame": 275212,
-      "duration_frames": 91744,
-      "overlap": false,
-      "utterance_id": "6075-57154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57154.flac |",
-      "real_speaker_id": "6075",
-      "position_frames": 60356
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.441862773089696,
-      "end_time": 28.186607436756994,
-      "duration": 4.744744663667296,
-      "start_frame": 375069,
-      "duration_frames": 75915,
-      "overlap": false,
-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 183969
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.75948193553134,
-      "end_time": 31.376970231844098,
-      "duration": 3.6174882963127573,
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-      "duration_frames": 57879,
-      "overlap": true,
-      "utterance_id": "5606-54667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 22.595021809874225,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.9956132694307667,
-      "start_time": 6.461327908153679
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
-      "duration": 3.942831272345799,
-      "start_time": 9.93434153169487
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_026717.json b/conversations/conv_026717.json
deleted file mode 100644
index 7852a1bfeafbb43190a65f2d277e706bd5c2c178..0000000000000000000000000000000000000000
--- a/conversations/conv_026717.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.19162596254898,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.616691505140473,
-      "duration": 3.616691505140473,
-      "start_frame": 0,
-      "duration_frames": 57867,
-      "overlap": false,
-      "utterance_id": "8238-283452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-283452.flac |",
-      "real_speaker_id": "8238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9627313092022254,
-      "end_time": 9.48890197554936,
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-      "start_frame": 63403,
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-      "overlap": false,
-      "utterance_id": "5874-52160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52160.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.230167171195825,
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-      "start_frame": 163682,
-      "duration_frames": 91651,
-      "overlap": false,
-      "utterance_id": "8238-283452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-283452.flac |",
-      "real_speaker_id": "8238",
-      "position_frames": 57867
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.58408694361027,
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-      "start_frame": 265345,
-      "duration_frames": 87209,
-      "overlap": false,
-      "utterance_id": "1800-142858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.396079409536185,
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-      "duration_frames": 75362,
-      "overlap": false,
-      "utterance_id": "8238-283452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-283452.flac |",
-      "real_speaker_id": "8238",
-      "position_frames": 149518
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.21857665652582,
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-      "duration": 3.230340348315691,
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-      "duration_frames": 51685,
-      "overlap": false,
-      "utterance_id": "5874-52160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52160.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 88418
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.437889198662237,
-      "end_time": 31.19162596254898,
-      "duration": 0.7537367638867423,
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-      "utterance_id": "1800-142858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 87209
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8238"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 22.296419587621056,
-      "speaker_id": "1800"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8238/laugh/0052.wav",
-      "duration": 1.8,
-      "start_time": 23.88552493969596,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8238/cough/0004.wav",
-      "duration": 0.7537829065283816,
-      "start_time": 21.598879441682033,
-      "speaker_id": "8238"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026721.json b/conversations/conv_026721.json
deleted file mode 100644
index a66ee6a3b77b7573dd6592dbadacb6a6b3093254..0000000000000000000000000000000000000000
--- a/conversations/conv_026721.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.109802595983523,
-      "duration": 4.109802595983523,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.844260266475466,
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-      "duration": 5.237708859374953,
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-      "overlap": false,
-      "utterance_id": "5082-16015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-16015.flac |",
-      "real_speaker_id": "5082",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "duration_frames": 56032,
-      "overlap": true,
-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.866072846269539,
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-      "overlap": false,
-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 65756
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.853371122227678,
-      "end_time": 27.105253917932913,
-      "duration": 6.251882795705235,
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-      "duration_frames": 100030,
-      "overlap": true,
-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 56032
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.49995809823692,
-      "end_time": 32.0,
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-      "start_frame": 439999,
-      "duration_frames": 72000,
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-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 159070
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_15.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2334/laugh/0002.wav",
-      "duration": 1.08,
-      "start_time": 20.87295158446481,
-      "speaker_id": "2334"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026737.json b/conversations/conv_026737.json
deleted file mode 100644
index 5db42dc5aef284e61cf61619615b5585ea182659..0000000000000000000000000000000000000000
--- a/conversations/conv_026737.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.798230729015245,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.385526306032145,
-      "duration": 3.385526306032145,
-      "start_frame": 0,
-      "duration_frames": 54168,
-      "overlap": false,
-      "utterance_id": "215-127369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-127369.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.605777916590638,
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-      "duration_frames": 96347,
-      "overlap": true,
-      "utterance_id": "5198-204974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204974.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.785981250412366,
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-      "overlap": false,
-      "utterance_id": "5189-59288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-59288.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-122798.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 74358
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026740.json b/conversations/conv_026740.json
deleted file mode 100644
index c2fe070cf63efe31ea8a81d671c9f2c9bdd4fba1..0000000000000000000000000000000000000000
--- a/conversations/conv_026740.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.793036204685924,
-      "duration": 5.793036204685924,
-      "start_frame": 0,
-      "duration_frames": 92688,
-      "overlap": false,
-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.688233530767562,
-      "end_time": 12.330157764660756,
-      "duration": 5.641924233893194,
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-      "duration_frames": 90270,
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-      "utterance_id": "111-129000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.707025234760813,
-      "end_time": 16.73125580617107,
-      "duration": 4.024230571410257,
-      "start_frame": 203312,
-      "duration_frames": 64387,
-      "overlap": false,
-      "utterance_id": "111-126265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126265.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.557406596678653,
-      "end_time": 24.43323485839472,
-      "duration": 6.875828261716064,
-      "start_frame": 280918,
-      "duration_frames": 110013,
-      "overlap": false,
-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 92688
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.063323451148662,
-      "end_time": 29.991269317919567,
-      "duration": 4.927945866770906,
-      "start_frame": 401013,
-      "duration_frames": 78847,
-      "overlap": false,
-      "utterance_id": "5261-19371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19371.flac |",
-      "real_speaker_id": "5261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.12481772240651,
-      "end_time": 32.0,
-      "duration": 1.8751822775934883,
-      "start_frame": 481997,
-      "duration_frames": 30002,
-      "overlap": false,
-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 202701
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_3.wav",
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-      "start_time": 10.419255064717039
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/567/cough/0008.wav",
-      "duration": 0.9232419368244644,
-      "start_time": 0,
-      "speaker_id": "567"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/111/laugh/0037.wav",
-      "duration": 1.32,
-      "start_time": 7.134289400653883,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/567/laugh/0029.wav",
-      "duration": 0.6122789581789717,
-      "start_time": 30.75726019910202,
-      "speaker_id": "567"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026756.json b/conversations/conv_026756.json
deleted file mode 100644
index 760041bdf71fecde93e7927d7fac197886e413a7..0000000000000000000000000000000000000000
--- a/conversations/conv_026756.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.086583422888906,
-      "duration": 5.086583422888906,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2285-149890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-149890.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.442335052481436,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/54-121079.flac |",
-      "real_speaker_id": "54",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "3757-134141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134141.flac |",
-      "real_speaker_id": "3757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.694333626835125,
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-      "duration": 5.1425461050094965,
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-      "duration_frames": 82280,
-      "overlap": false,
-      "utterance_id": "2285-149890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-149890.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 81385
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.647754741880696,
-      "end_time": 28.969478118938433,
-      "duration": 4.321723377057738,
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-      "duration_frames": 69147,
-      "overlap": false,
-      "utterance_id": "3757-134143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134143.flac |",
-      "real_speaker_id": "3757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.678123591939837,
-      "end_time": 32.0,
-      "duration": 2.321876408060163,
-      "start_frame": 474849,
-      "duration_frames": 37150,
-      "overlap": false,
-      "utterance_id": "2285-163381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-163381.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
-      "duration": 0.9632426303854875,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.976980429645212,
-      "start_time": 26.651872509260198
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2285/laugh/0047.wav",
-      "duration": 1.4,
-      "start_time": 0,
-      "speaker_id": "2285"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/54/laugh/0092.wav",
-      "duration": 0.7462889363845373,
-      "start_time": 4.633017573962631,
-      "speaker_id": "54"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026757.json b/conversations/conv_026757.json
deleted file mode 100644
index 4bcf4173f99c5d0357f8a4071c8e97e117adcd4b..0000000000000000000000000000000000000000
--- a/conversations/conv_026757.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "1914-133440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-133440.flac |",
-      "real_speaker_id": "1914",
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-    },
-    {
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-      "utterance_id": "2334-150915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150915.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126851.flac |",
-      "real_speaker_id": "208",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2334",
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "1914-121446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121446.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-    {
-      "event_class": "laugh",
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-      "start_time": 11.073873397165142,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2334/laugh/0087.wav",
-      "duration": 1.1,
-      "start_time": 10.485935221937023,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/208/cough/0014.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.94,
-      "start_time": 31.06,
-      "speaker_id": "1914"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026760.json b/conversations/conv_026760.json
deleted file mode 100644
index 95eeaffdb8017fe55748e34c4a300a69276dbe5f..0000000000000000000000000000000000000000
--- a/conversations/conv_026760.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "end_time": 5.867132199713897,
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-      "utterance_id": "7867-110742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110742.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 0
-    },
-    {
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-    {
-      "segment_id": "seg0002",
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-    {
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6370/cough/0138.wav",
-      "duration": 0.9985205742465355,
-      "start_time": 8.524594196252156,
-      "speaker_id": "6370"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4854/laugh/0078.wav",
-      "duration": 1.0,
-      "start_time": 11.345674096701423,
-      "speaker_id": "4854"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7867/laugh/0085.wav",
-      "duration": 1.6,
-      "start_time": 26.242967379949985,
-      "speaker_id": "7867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026776.json b/conversations/conv_026776.json
deleted file mode 100644
index 6099bbd5d0431d0d5241a3b954706fd55bcf4a0f..0000000000000000000000000000000000000000
--- a/conversations/conv_026776.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.351347993849195,
-      "duration": 5.351347993849195,
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-      "overlap": false,
-      "utterance_id": "7510-282967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282967.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.465500164936388,
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-      "duration": 6.798809248297349,
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-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.31144668372194,
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-      "duration_frames": 52660,
-      "overlap": false,
-      "utterance_id": "6276-62021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-62021.flac |",
-      "real_speaker_id": "6276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.13157008642424,
-      "end_time": 24.690498134489275,
-      "duration": 6.5589280480650345,
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-      "overlap": false,
-      "utterance_id": "7510-282528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282528.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.113389066068414,
-      "end_time": 29.736543887767386,
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-      "overlap": false,
-      "utterance_id": "6276-76103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-76103.flac |",
-      "real_speaker_id": "6276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.33018733410079,
-      "end_time": 32.0,
-      "duration": 1.6698126658992116,
-      "start_frame": 485282,
-      "duration_frames": 26717,
-      "overlap": false,
-      "utterance_id": "6276-76103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-76103.flac |",
-      "real_speaker_id": "6276",
-      "position_frames": 73970
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/84654.wav",
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-  "paralinguistic_events": [
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-      "start_time": 2.418943382336142,
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-      "event_class": "cough",
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-      "speaker_id": "6276"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6276/laugh/0150.wav",
-      "duration": 1.3564260740014695,
-      "start_time": 27.530084310569258,
-      "speaker_id": "6276"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026783.json b/conversations/conv_026783.json
deleted file mode 100644
index 69ba90c5004a0e3012684d9802525f1384e79b6f..0000000000000000000000000000000000000000
--- a/conversations/conv_026783.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.378348747499434,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4629-19366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 91197
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.67563381652956,
-      "end_time": 24.37039075195372,
-      "duration": 5.694756935424158,
-      "start_frame": 298810,
-      "duration_frames": 91116,
-      "overlap": false,
-      "utterance_id": "152-87733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-87733.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.137404306629442,
-      "end_time": 31.378348747499434,
-      "duration": 6.240944440869992,
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-      "overlap": false,
-      "utterance_id": "4629-19366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 168850
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4629/laugh/0026.wav",
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-      "start_time": 30.953619892884497,
-      "speaker_id": "4629"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026784.json b/conversations/conv_026784.json
deleted file mode 100644
index 2dce162c14e7afc0d5e1dc8d6d7622f0790de51e..0000000000000000000000000000000000000000
--- a/conversations/conv_026784.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "2764-36616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36616.flac |",
-      "real_speaker_id": "2764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
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-      "real_speaker_id": "4019",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36616.flac |",
-      "real_speaker_id": "2764",
-      "position_frames": 55775
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.03922238571429,
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-      "overlap": false,
-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 99418
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "4019"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026792.json b/conversations/conv_026792.json
deleted file mode 100644
index 3d5e916b7ae64bc6a5192351c5e9c224b640359d..0000000000000000000000000000000000000000
--- a/conversations/conv_026792.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "6895-92806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92806.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.8166031172073085,
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-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92805.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "utterance_id": "6895-92806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92806.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6895/cough/0042.wav",
-      "duration": 0.94,
-      "start_time": 10.020226069666043,
-      "speaker_id": "6895"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6895/laugh/0028.wav",
-      "duration": 1.2989080421607788,
-      "start_time": 26.02475093065376,
-      "speaker_id": "6895"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026795.json b/conversations/conv_026795.json
deleted file mode 100644
index cbf16bad9a4d601cf958a8fe22a1364426d88fda..0000000000000000000000000000000000000000
--- a/conversations/conv_026795.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8786-276749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276749.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.132009255951512,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126232.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.162739387852024,
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-      "utterance_id": "8786-276735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276735.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.266473049758861,
-      "end_time": 20.443637862164607,
-      "duration": 5.1771648124057466,
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-      "duration_frames": 82834,
-      "overlap": false,
-      "utterance_id": "7780-274562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7780-274562.flac |",
-      "real_speaker_id": "7780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.14211243975943,
-      "end_time": 25.92777950558908,
-      "duration": 4.785667065829649,
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-      "duration_frames": 76570,
-      "overlap": false,
-      "utterance_id": "7780-274562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7780-274562.flac |",
-      "real_speaker_id": "7780",
-      "position_frames": 82834
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.133838418939252,
-      "end_time": 32.0,
-      "duration": 4.866161581060748,
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-      "overlap": false,
-      "utterance_id": "899-126232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126232.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 83680
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8786/cough/0103.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7780/laugh/0092.wav",
-      "duration": 1.3263230870049183,
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-      "speaker_id": "7780"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026799.json b/conversations/conv_026799.json
deleted file mode 100644
index 5ab360c9579e9f2cdaae0153669c0e4e7f290d65..0000000000000000000000000000000000000000
--- a/conversations/conv_026799.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3825-134160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106367.flac |",
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-      "utterance_id": "7777-106367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106367.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 109766
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.997047348390161,
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-      "utterance_id": "3825-134160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 77210
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.81452942765672,
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-      "overlap": false,
-      "utterance_id": "7777-106366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.58704766986869,
-      "end_time": 32.0,
-      "duration": 3.4129523301313114,
-      "start_frame": 457392,
-      "duration_frames": 54607,
-      "overlap": false,
-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "start_time": 24.08628311288223,
-      "speaker_id": "7777"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "3825"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026803.json b/conversations/conv_026803.json
deleted file mode 100644
index de39f828cff2c250419138f463b5e944d7480910..0000000000000000000000000000000000000000
--- a/conversations/conv_026803.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.444938232194607,
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-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.777863073716171,
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-      "duration_frames": 60865,
-      "overlap": true,
-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 84602
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.309290343911318,
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-      "overlap": false,
-      "utterance_id": "7495-252341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-252341.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6492-68353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68353.flac |",
-      "real_speaker_id": "6492",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-252341.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 55377
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.29567118335819,
-      "end_time": 32.0,
-      "duration": 3.7043288166418087,
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-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
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-  "background_events": [
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7495/laugh/0046.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7495/laugh/0013.wav",
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-      "start_time": 27.739400533004975,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7495/cough/0008.wav",
-      "duration": 1.16,
-      "start_time": 27.750864989826095,
-      "speaker_id": "7495"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026804.json b/conversations/conv_026804.json
deleted file mode 100644
index 5a7c3bdb3d509be9ad622a32c1d7d17364d3df13..0000000000000000000000000000000000000000
--- a/conversations/conv_026804.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.26985107992799,
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-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
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-    {
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-      "utterance_id": "1271-133279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-133279.flac |",
-      "real_speaker_id": "1271",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 93296
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.772806338840933,
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-      "utterance_id": "1271-128145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-128145.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1271/laugh/0112.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "1271"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026808.json b/conversations/conv_026808.json
deleted file mode 100644
index e8b2110c139bcf98467cd96ea8b278e6c586ceb1..0000000000000000000000000000000000000000
--- a/conversations/conv_026808.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.303933331340836,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "8302-281317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281317.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.507888516271543,
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-      "utterance_id": "2004-147981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147981.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 12.76954428203819,
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-      "utterance_id": "8302-281331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281331.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.01235242717564,
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-      "overlap": false,
-      "utterance_id": "373-130977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130977.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.11025425874759,
-      "end_time": 26.25513220255128,
-      "duration": 3.1448779438036887,
-      "start_frame": 369764,
-      "duration_frames": 50318,
-      "overlap": false,
-      "utterance_id": "373-130977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130977.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 73773
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.476152148387982,
-      "end_time": 31.303933331340836,
-      "duration": 4.8277811829528545,
-      "start_frame": 423618,
-      "duration_frames": 77244,
-      "overlap": true,
-      "utterance_id": "2004-147981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147981.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 96038
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8302/laugh/0002.wav",
-      "duration": 1.52,
-      "start_time": 11.103059989556856,
-      "speaker_id": "8302"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8302/cough/0012.wav",
-      "duration": 1.2,
-      "start_time": 13.850703228978407,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/373/laugh/0036.wav",
-      "duration": 1.36,
-      "start_time": 16.378937251803247,
-      "speaker_id": "373"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026812.json b/conversations/conv_026812.json
deleted file mode 100644
index ee2f044e98184b2e1363129466115e07f4292967..0000000000000000000000000000000000000000
--- a/conversations/conv_026812.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "811-130143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130143.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.533529137926443,
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-      "utterance_id": "811-130143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130143.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 94590
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "476-134312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/476-134312.flac |",
-      "real_speaker_id": "476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.49708776912336,
-      "end_time": 22.559226092777852,
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-      "utterance_id": "811-130143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130143.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 162762
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.8211680100117,
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-      "overlap": false,
-      "utterance_id": "2021-235244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235244.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.266734104461822,
-      "end_time": 32.0,
-      "duration": 1.7332658955381781,
-      "start_frame": 484267,
-      "duration_frames": 27732,
-      "overlap": false,
-      "utterance_id": "811-130148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
-      "real_speaker_id": "811",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/476/laugh/0062.wav",
-      "duration": 0.8893471123911252,
-      "start_time": 16.71112214574362,
-      "speaker_id": "476"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/811/laugh/0064.wav",
-      "duration": 1.14,
-      "start_time": 18.30131030748529,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/811/laugh/0003.wav",
-      "duration": 0.5573269527186224,
-      "start_time": 30.93389251981112,
-      "speaker_id": "811"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/811/cough/0089.wav",
-      "duration": 1.24,
-      "start_time": 28.9856202519898,
-      "speaker_id": "811"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026815.json b/conversations/conv_026815.json
deleted file mode 100644
index 117d8b7caff5ff73f4a56c54af49d5aab613d985..0000000000000000000000000000000000000000
--- a/conversations/conv_026815.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7839-109877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109877.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.514739563761658,
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-      "overlap": true,
-      "utterance_id": "6284-63091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 62445,
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-      "utterance_id": "7839-109872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109872.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.581959565543205,
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-      "duration_frames": 69768,
-      "overlap": false,
-      "utterance_id": "911-128684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-128684.flac |",
-      "real_speaker_id": "911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.768362645260357,
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-      "overlap": true,
-      "utterance_id": "7839-109880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109880.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7839-109880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109880.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 100394
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.660637283146457,
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-      "duration": 0.33936271685354313,
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-      "duration_frames": 5429,
-      "overlap": false,
-      "utterance_id": "6284-63091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 100107
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "start_time": 25.321912692699467
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_10.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "7839"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6284/laugh/0038.wav",
-      "duration": 0.7083470705100737,
-      "start_time": 2.78187765609843,
-      "speaker_id": "6284"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/911/laugh/0079.wav",
-      "duration": 0.9648672457626534,
-      "start_time": 17.120226833695213,
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 14.27272485633258,
-      "speaker_id": "911"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026824.json b/conversations/conv_026824.json
deleted file mode 100644
index 2e082ef2c1e48fe2ce1e6403f6843d09d0171350..0000000000000000000000000000000000000000
--- a/conversations/conv_026824.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "487-129440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-105653.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.347036800083778,
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-      "utterance_id": "487-129440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 186674
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-  "background_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "start_time": 15.403097173282893,
-      "speaker_id": "3790"
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-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7492/laugh/0054.wav",
-      "duration": 1.5072652432506848,
-      "start_time": 22.005053171620307,
-      "speaker_id": "7492"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026828.json b/conversations/conv_026828.json
deleted file mode 100644
index c3a67e233b6669d531d3adc8aebd479c9b388004..0000000000000000000000000000000000000000
--- a/conversations/conv_026828.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.59292752318228,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5139-30105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30105.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.710151804485313,
-      "end_time": 9.954943338630448,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8887-281472.flac |",
-      "real_speaker_id": "8887",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30105.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30105.flac |",
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-      "utterance_id": "6077-58756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58756.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
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-      "utterance_id": "8887-281472",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8887-281472.flac |",
-      "real_speaker_id": "8887",
-      "position_frames": 67916
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "start_time": 27.882381318587615,
-      "speaker_id": "8887"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026832.json b/conversations/conv_026832.json
deleted file mode 100644
index 6e3cc8f76ebd8d29893ba7f0042d663d22814e9f..0000000000000000000000000000000000000000
--- a/conversations/conv_026832.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.410320198854993,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "56",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 92049
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "6385-34655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6385-34655.flac |",
-      "real_speaker_id": "6385",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.558751978179387,
-      "end_time": 30.449377311056224,
-      "duration": 6.890625332876837,
-      "start_frame": 376940,
-      "duration_frames": 110250,
-      "overlap": false,
-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 201192
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.22989617070235,
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-      "start_frame": 483678,
-      "duration_frames": 18886,
-      "overlap": true,
-      "utterance_id": "6385-34655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6385-34655.flac |",
-      "real_speaker_id": "6385",
-      "position_frames": 75102
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/56/laugh/0098.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6385/cough/0010.wav",
-      "duration": 1.16,
-      "start_time": 20.532309573879637,
-      "speaker_id": "6385"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026842.json b/conversations/conv_026842.json
deleted file mode 100644
index 408eb74ac060a9d26ff30bd03755a4f393fbe4c9..0000000000000000000000000000000000000000
--- a/conversations/conv_026842.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.06529775399427,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.991404398785875,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3307-145138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145138.flac |",
-      "real_speaker_id": "3307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.340427629756936,
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-      "overlap": false,
-      "utterance_id": "90-130566",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-130566.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.105928776251176,
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-      "utterance_id": "90-121085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-121085.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "3307-145145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145145.flac |",
-      "real_speaker_id": "3307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.724117396360487,
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-      "utterance_id": "5487-4873",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-4873.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.997777513056278,
-      "end_time": 31.06529775399427,
-      "duration": 5.0675202409379905,
-      "start_frame": 415964,
-      "duration_frames": 81080,
-      "overlap": false,
-      "utterance_id": "3307-145145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145145.flac |",
-      "real_speaker_id": "3307",
-      "position_frames": 100219
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3307/laugh/0001.wav",
-      "duration": 1.28,
-      "start_time": 0.9837045731783374,
-      "speaker_id": "3307"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/90/laugh/0027.wav",
-      "duration": 1.12,
-      "start_time": 7.227629773556308,
-      "speaker_id": "90"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5487/laugh/0011.wav",
-      "duration": 1.1255775252366695,
-      "start_time": 20.340825975870406,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3307/laugh/0074.wav",
-      "duration": 1.52,
-      "start_time": 30.48,
-      "speaker_id": "3307"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026845.json b/conversations/conv_026845.json
deleted file mode 100644
index 57f4b3b91d4f8903211b70bab92bc9b44d9ca30a..0000000000000000000000000000000000000000
--- a/conversations/conv_026845.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 70274
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_026849.json b/conversations/conv_026849.json
deleted file mode 100644
index f8e892bb87a759b235b721388a015c3cd7d8b2c6..0000000000000000000000000000000000000000
--- a/conversations/conv_026849.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.568539976011987,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15668.flac |",
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-      "real_speaker_id": "580",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15678.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_11.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026853.json b/conversations/conv_026853.json
deleted file mode 100644
index bf8033161b21a87055eab46c4084f11b6ec023df..0000000000000000000000000000000000000000
--- a/conversations/conv_026853.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "real_speaker_id": "6705",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026854.json b/conversations/conv_026854.json
deleted file mode 100644
index 517f5cd9df74332f308a4a8ff96ded39bcc67d6b..0000000000000000000000000000000000000000
--- a/conversations/conv_026854.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-127696.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2351-151969.flac |",
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-      "event_class": "cough",
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-      "speaker_id": "111"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026865.json b/conversations/conv_026865.json
deleted file mode 100644
index 36f6cde70e81f534cff5aff26a57e895c8e2bf62..0000000000000000000000000000000000000000
--- a/conversations/conv_026865.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "6082-56175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56175.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "6082-56174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.66156810048609,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.373132231799755,
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-      "utterance_id": "6082-56174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 99213
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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\ No newline at end of file
diff --git a/conversations/conv_026868.json b/conversations/conv_026868.json
deleted file mode 100644
index 8ad2d2a5623b1dc7b1f37a3ba27cb5cc442e21ab..0000000000000000000000000000000000000000
--- a/conversations/conv_026868.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-88086.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "957",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-88086.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 90448
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "957-132568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 167856
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_026869.json b/conversations/conv_026869.json
deleted file mode 100644
index dc7a905107eef366f178a0175a6b94c0db9cb17d..0000000000000000000000000000000000000000
--- a/conversations/conv_026869.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.731490450994357,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/792-127528.flac |",
-      "real_speaker_id": "792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293619.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/792-127528.flac |",
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-      "real_speaker_id": "434",
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-    },
-    {
-      "segment_id": "seg0004",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026873.json b/conversations/conv_026873.json
deleted file mode 100644
index e2d1108e588bdd54ef735f75782d5a2cc8c6d679..0000000000000000000000000000000000000000
--- a/conversations/conv_026873.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1079-128633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1079-128633.flac |",
-      "real_speaker_id": "1079",
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-    {
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123284.flac |",
-      "real_speaker_id": "724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.667861261554897,
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-      "overlap": false,
-      "utterance_id": "1079-128636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1079-128636.flac |",
-      "real_speaker_id": "1079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.948997897977655,
-      "end_time": 32.0,
-      "duration": 1.0510021020223448,
-      "start_frame": 495183,
-      "duration_frames": 16816,
-      "overlap": false,
-      "utterance_id": "7150-118730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-118730.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1079/laugh/0074.wav",
-      "duration": 1.52,
-      "start_time": 0,
-      "speaker_id": "1079"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/724/cough/0044.wav",
-      "duration": 1.2468555456593289,
-      "start_time": 9.624444049420374,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1079/laugh/0092.wav",
-      "duration": 1.36,
-      "start_time": 30.01871109391574,
-      "speaker_id": "1079"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026886.json b/conversations/conv_026886.json
deleted file mode 100644
index 18e4d8bfbeeca13c6facb8e5b2fa22dbbcd06557..0000000000000000000000000000000000000000
--- a/conversations/conv_026886.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.708068359622146,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.570145541068941,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.380377806588849,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132466.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.643867086067411,
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-      "duration_frames": 87859,
-      "overlap": true,
-      "utterance_id": "8367-279367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279367.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.767857157012525,
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-      "duration": 5.610789141125443,
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-      "overlap": true,
-      "utterance_id": "927-132462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132462.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.84876236446513,
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-      "duration_frames": 89153,
-      "overlap": false,
-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 89122
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.705104593824178,
-      "end_time": 31.708068359622146,
-      "duration": 2.0029637657979684,
-      "start_frame": 475281,
-      "duration_frames": 32047,
-      "overlap": true,
-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 178275
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2694/laugh/0062.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "2694"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026890.json b/conversations/conv_026890.json
deleted file mode 100644
index 71fc1d248b0e3157d95a34284b6fc11339e2b536..0000000000000000000000000000000000000000
--- a/conversations/conv_026890.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7912-105670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7912-105670.flac |",
-      "real_speaker_id": "7912",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.581125262406002,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147979.flac |",
-      "real_speaker_id": "1926",
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-      "utterance_id": "6943-64094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-64094.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.581693071051413,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-64094.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 71814
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.629156727959067,
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-      "overlap": false,
-      "utterance_id": "1926-147987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1926-147979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147979.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 65345
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 0.6659231043462626,
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-      "position_frames": 76260
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7912/cough/0025.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7912/laugh/0134.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "7912"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026900.json b/conversations/conv_026900.json
deleted file mode 100644
index dac9c2c16fc5f9d21a1d09122148fb01126de983..0000000000000000000000000000000000000000
--- a/conversations/conv_026900.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99481583192792,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.224544105681412,
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-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
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-      "utterance_id": "4021-180238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-180238.flac |",
-      "real_speaker_id": "4021",
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-      "real_speaker_id": "2068",
-      "position_frames": 96097
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.04839150961684,
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-      "utterance_id": "4021-130137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-130137.flac |",
-      "real_speaker_id": "4021",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_026907.json b/conversations/conv_026907.json
deleted file mode 100644
index 0115d6c0cfc624d54a04bcaac072846ba3a5f3c2..0000000000000000000000000000000000000000
--- a/conversations/conv_026907.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.856064990052726,
-      "duration": 6.856064990052726,
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-      "duration_frames": 109697,
-      "overlap": false,
-      "utterance_id": "5831-87174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-87174.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.817446559697734,
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-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "6673",
-      "position_frames": 59368
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 95617
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-      "duration": 1.24,
-      "start_time": 13.100733280484377,
-      "speaker_id": "5831"
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-      "event_class": "laugh",
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-      "speaker_id": "6673"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026911.json b/conversations/conv_026911.json
deleted file mode 100644
index 2b0697d50aa8ec50daa19abc83c0fad11d5c523e..0000000000000000000000000000000000000000
--- a/conversations/conv_026911.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.704513149781395,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.3095908738327156,
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-      "utterance_id": "8321-284207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-284207.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 6.423991632763321,
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-      "utterance_id": "6395-84349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-84349.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.575649720125647,
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-      "utterance_id": "82-122859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 55156
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.61665661428174,
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-      "utterance_id": "8321-284222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-284222.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.74733722107086,
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-      "start_frame": 443957,
-      "duration_frames": 63314,
-      "overlap": false,
-      "utterance_id": "82-122859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 143045
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "start_time": 0,
-      "speaker_id": "8321"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "82"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026916.json b/conversations/conv_026916.json
deleted file mode 100644
index dc23dec4d29f8712f73962217f3c9e9e4aeb7a76..0000000000000000000000000000000000000000
--- a/conversations/conv_026916.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
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-      "position_frames": 0
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-      "position_frames": 0
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-      "utterance_id": "8470-286675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286675.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 62027
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96682.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 74111
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286666.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 20.827618840763954,
-      "speaker_id": "8470"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026920.json b/conversations/conv_026920.json
deleted file mode 100644
index e7c33572ccb8c6738e550f6fb0974d9989e6afc6..0000000000000000000000000000000000000000
--- a/conversations/conv_026920.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1425-139291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139291.flac |",
-      "real_speaker_id": "1425",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "1985",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
-      "real_speaker_id": "4958",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.603720839554214,
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-      "utterance_id": "1425-139291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139291.flac |",
-      "real_speaker_id": "1425",
-      "position_frames": 97875
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 58535
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1985"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026936.json b/conversations/conv_026936.json
deleted file mode 100644
index c08c016033a6e7f3cc0b1290b6ddbd3b3055176e..0000000000000000000000000000000000000000
--- a/conversations/conv_026936.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.717606269405674,
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-      "start_frame": 0,
-      "duration_frames": 107481,
-      "overlap": false,
-      "utterance_id": "1646-121408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121408.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "6324"
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-}
\ No newline at end of file
diff --git a/conversations/conv_026941.json b/conversations/conv_026941.json
deleted file mode 100644
index 74eac5ad3cff731ccbc4f8e99e1991bd579238e1..0000000000000000000000000000000000000000
--- a/conversations/conv_026941.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 84209
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 87525
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 83733
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026946.json b/conversations/conv_026946.json
deleted file mode 100644
index f84e4f04fce818287b826f9468c729a49f5cb311..0000000000000000000000000000000000000000
--- a/conversations/conv_026946.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 81917
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "1734",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026950.json b/conversations/conv_026950.json
deleted file mode 100644
index fbb2917c0f4c3542cef2e93e1fb1dbf09b0de74d..0000000000000000000000000000000000000000
--- a/conversations/conv_026950.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99571362827962,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "4226-185488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-185488.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 21.9837483746988,
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-185488.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4226/laugh/0008.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026957.json b/conversations/conv_026957.json
deleted file mode 100644
index 2ce2cf7cceb91f4741f6ee25d734ef6f0d03d3d4..0000000000000000000000000000000000000000
--- a/conversations/conv_026957.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.505018714207498,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.363600971775658,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_026961.json b/conversations/conv_026961.json
deleted file mode 100644
index c07234dd526881bac3c896a62093a11e0cc65743..0000000000000000000000000000000000000000
--- a/conversations/conv_026961.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.665594988099432,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3318-164981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164981.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
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-      "utterance_id": "3318-185499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-185499.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.681166654264466,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 108845
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.77901693114239,
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-      "real_speaker_id": "3318",
-      "position_frames": 94365
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_026977.json b/conversations/conv_026977.json
deleted file mode 100644
index c9bd1bdae72376a33dfbbe0a7fac7b2a2e76a578..0000000000000000000000000000000000000000
--- a/conversations/conv_026977.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 186057
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "2090",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-289242.flac |",
-      "real_speaker_id": "1053",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_026982.json b/conversations/conv_026982.json
deleted file mode 100644
index 4e761d8fd302ea13a752e6c71d34139763397344..0000000000000000000000000000000000000000
--- a/conversations/conv_026982.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-34664.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15273.flac |",
-      "real_speaker_id": "4701",
-      "position_frames": 0
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-      "utterance_id": "2909-34661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-34661.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15273.flac |",
-      "real_speaker_id": "4701",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2909",
-      "position_frames": 74389
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "speaker_id": "2909"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_026985.json b/conversations/conv_026985.json
deleted file mode 100644
index 210b77f711cced60d557735bedd446ab13b86f7c..0000000000000000000000000000000000000000
--- a/conversations/conv_026985.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.635985052167356,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4051-11218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11218.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11217.flac |",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_026994.json b/conversations/conv_026994.json
deleted file mode 100644
index 50a926bc870440d83353bd4e688481ddf413558f..0000000000000000000000000000000000000000
--- a/conversations/conv_026994.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "100-121669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-122655.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121674.flac |",
-      "real_speaker_id": "100",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-365.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.64614359531102,
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-      "position_frames": 97634
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_026995.json b/conversations/conv_026995.json
deleted file mode 100644
index a45c87c4af9de5ba999d42d499bddb2c11ab0c7d..0000000000000000000000000000000000000000
--- a/conversations/conv_026995.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "7683",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_026998.json b/conversations/conv_026998.json
deleted file mode 100644
index 90475be0e0aafad41ac8f81a4161ba707e412c7e..0000000000000000000000000000000000000000
--- a/conversations/conv_026998.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2777.flac |",
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-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_027002.json b/conversations/conv_027002.json
deleted file mode 100644
index c78ecf431f954922e93cdb921fe733cad711999a..0000000000000000000000000000000000000000
--- a/conversations/conv_027002.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-92211.flac |",
-      "real_speaker_id": "6978",
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127193.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.11605401014897,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1179-139203.flac |",
-      "real_speaker_id": "1179",
-      "position_frames": 59783
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.24695757837021,
-      "end_time": 25.750897976718154,
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-      "utterance_id": "6978-92211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-92211.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 94022
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.667096210601937,
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-      "overlap": false,
-      "utterance_id": "766-127195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127195.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.56396032713956,
-      "end_time": 32.0,
-      "duration": 1.4360396728604385,
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-      "utterance_id": "6978-92936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-92936.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.526505422745121,
-      "start_time": 8.537971824119131
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6978/laugh/0026.wav",
-      "duration": 1.12,
-      "start_time": 22.973677195839343,
-      "speaker_id": "6978"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/766/cough/0001.wav",
-      "duration": 0.36348926830777584,
-      "start_time": 30.020656988429348,
-      "speaker_id": "766"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027003.json b/conversations/conv_027003.json
deleted file mode 100644
index b83dac045dc2ef07b00e11aef7460e352c972a06..0000000000000000000000000000000000000000
--- a/conversations/conv_027003.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.46385302603601,
-      "duration": 4.46385302603601,
-      "start_frame": 0,
-      "duration_frames": 71421,
-      "overlap": false,
-      "utterance_id": "4910-14125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-14125.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.761082309170787,
-      "end_time": 11.339664038889577,
-      "duration": 5.57858172971879,
-      "start_frame": 92177,
-      "duration_frames": 89257,
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-      "utterance_id": "4910-27683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-27683.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.830970124293959,
-      "end_time": 18.721110769140232,
-      "duration": 6.890140644846271,
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-      "overlap": false,
-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.121494178072794,
-      "end_time": 25.17348820393593,
-      "duration": 6.051994025863134,
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-      "utterance_id": "4910-14125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-14125.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 71421
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.9736415567306,
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-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 110242
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 0.7546586322723137,
-      "start_frame": 499925,
-      "duration_frames": 12074,
-      "overlap": false,
-      "utterance_id": "5077-38108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38108.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5077/cough/0078.wav",
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-      "start_time": 31.366930139983136,
-      "speaker_id": "5077"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027014.json b/conversations/conv_027014.json
deleted file mode 100644
index 4591113e8a05ce272b525c23bbaf0139e5038d79..0000000000000000000000000000000000000000
--- a/conversations/conv_027014.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "612-121766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.465142233572839,
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-      "utterance_id": "6497-234100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234100.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "6497-234067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234067.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "3681-26514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-26514.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.49948475674335,
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-      "utterance_id": "612-121760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121760.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3681-116302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-116302.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "duration": 0.96,
-      "start_time": 1.390870368005166,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/612/laugh/0038.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027018.json b/conversations/conv_027018.json
deleted file mode 100644
index c97c994b72697dfbbec0241ad7eddf757d8efad0..0000000000000000000000000000000000000000
--- a/conversations/conv_027018.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 6.468243224817628,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.628246381631578,
-      "end_time": 13.396397661241686,
-      "duration": 6.768151279610107,
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-      "duration_frames": 108290,
-      "overlap": true,
-      "utterance_id": "2589-22574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22574.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 98791,
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-      "utterance_id": "7326-245693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-245693.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.228228740912378,
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-      "overlap": true,
-      "utterance_id": "2589-22581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22581.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "duration": 4.25680398674805,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 103491
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-      "speaker_id": "2589"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027022.json b/conversations/conv_027022.json
deleted file mode 100644
index 06644c8046d6356eebbebc14406250b3032a065c..0000000000000000000000000000000000000000
--- a/conversations/conv_027022.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.692748148430172,
-      "duration": 4.692748148430172,
-      "start_frame": 0,
-      "duration_frames": 75083,
-      "overlap": false,
-      "utterance_id": "101-126860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126860.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "2792-144136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.492084995741106,
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-      "duration": 3.8870555055407197,
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-      "duration_frames": 62192,
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-      "utterance_id": "2792-144136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 78674
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "101",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121413.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2792/laugh/0118.wav",
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-      "start_time": 18.22078563293544,
-      "speaker_id": "2238"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/101/laugh/0106.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027029.json b/conversations/conv_027029.json
deleted file mode 100644
index ef7ee349ce5062626fb7e97d9ec63a4e6c04783d..0000000000000000000000000000000000000000
--- a/conversations/conv_027029.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2270-3547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3547.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22178.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-26872.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-26872.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 58797
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137589.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_027034.json b/conversations/conv_027034.json
deleted file mode 100644
index 48fc588e7051b48b47d79ce04337432536472336..0000000000000000000000000000000000000000
--- a/conversations/conv_027034.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "8095",
-      "position_frames": 94490
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-  "background_events": [
-    {
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027038.json b/conversations/conv_027038.json
deleted file mode 100644
index 49649d851ed88d4d7195831148eabb37f62b54d3..0000000000000000000000000000000000000000
--- a/conversations/conv_027038.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 12.353519232392163,
-      "speaker_id": "8625"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4519/laugh/0008.wav",
-      "duration": 0.9693883866541464,
-      "start_time": 31.030611613345854,
-      "speaker_id": "4519"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027043.json b/conversations/conv_027043.json
deleted file mode 100644
index 446357eabec2c2a4fae5f5fc1c8eb8c553be8d76..0000000000000000000000000000000000000000
--- a/conversations/conv_027043.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.944137661551117,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3328-168638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-168638.flac |",
-      "real_speaker_id": "3328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.443063555428232,
-      "end_time": 10.454080174992725,
-      "duration": 5.011016619564493,
-      "start_frame": 87089,
-      "duration_frames": 80176,
-      "overlap": false,
-      "utterance_id": "3118-5909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5909.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.362036515160135,
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-      "duration_frames": 70468,
-      "overlap": false,
-      "utterance_id": "3328-168638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-168638.flac |",
-      "real_speaker_id": "3328",
-      "position_frames": 78573
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.813890905597404,
-      "end_time": 21.722192246725083,
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-      "overlap": false,
-      "utterance_id": "3118-5909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5909.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 80176
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.878704398005404,
-      "end_time": 26.500583634903716,
-      "duration": 4.6218792368983115,
-      "start_frame": 350059,
-      "duration_frames": 73950,
-      "overlap": false,
-      "utterance_id": "3328-168638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-168638.flac |",
-      "real_speaker_id": "3328",
-      "position_frames": 149041
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.43915011446839,
-      "end_time": 31.944137661551117,
-      "duration": 4.504987547082726,
-      "start_frame": 439026,
-      "duration_frames": 72079,
-      "overlap": false,
-      "utterance_id": "3118-5912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5912.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
-      "duration": 3.9732923381491383,
-      "start_time": 9.283904436735007
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3118/laugh/0018.wav",
-      "duration": 1.2202090398563885,
-      "start_time": 10.524808957509183,
-      "speaker_id": "3118"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3328/laugh/0017.wav",
-      "duration": 0.9967321972911427,
-      "start_time": 15.947949899595693,
-      "speaker_id": "3328"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
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-      "speaker_id": "3118"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3328/laugh/0077.wav",
-      "duration": 0.5135545666833513,
-      "start_time": 21.10700628218018,
-      "speaker_id": "3328"
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-    {
-      "event_class": "cough",
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-      "duration": 1.0790484536592018,
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-      "speaker_id": "3328"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3118/laugh/0045.wav",
-      "duration": 1.24,
-      "start_time": 30.44387260997693,
-      "speaker_id": "3118"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027054.json b/conversations/conv_027054.json
deleted file mode 100644
index 203992867bbc8d691b52c4494bf7b5be33cf2957..0000000000000000000000000000000000000000
--- a/conversations/conv_027054.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "167-15255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-15255.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.9882761897119616,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8176-115046.flac |",
-      "real_speaker_id": "8176",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "utterance_id": "7498-99122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99122.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.356205123126532,
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-      "utterance_id": "8176-115047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8176-115047.flac |",
-      "real_speaker_id": "8176",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.496835227043327,
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-      "utterance_id": "167-15255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-15255.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 69190
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.151979934434483,
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-      "duration": 3.5632546079905643,
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-      "duration_frames": 57012,
-      "overlap": false,
-      "utterance_id": "8176-115046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8176-115046.flac |",
-      "real_speaker_id": "8176",
-      "position_frames": 52133
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.851993987842086,
-      "end_time": 32.0,
-      "duration": 1.1480060121579143,
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-      "utterance_id": "7498-99156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99156.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "8176"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027055.json b/conversations/conv_027055.json
deleted file mode 100644
index fd0967e1ae16e9bb40d44148b49f05a10acd790a..0000000000000000000000000000000000000000
--- a/conversations/conv_027055.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "2577",
-      "position_frames": 0
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-      "real_speaker_id": "5604",
-      "position_frames": 104961
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5604-26987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.13161095261882,
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-      "duration": 1.8683890473811786,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
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-      "position_frames": 124356
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027059.json b/conversations/conv_027059.json
deleted file mode 100644
index 8f4f7f776a1e4d9f58f7b3dca42c3f934eee702a..0000000000000000000000000000000000000000
--- a/conversations/conv_027059.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "511-131226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131226.flac |",
-      "real_speaker_id": "511",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39616.flac |",
-      "real_speaker_id": "4071",
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-    {
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-      "position_frames": 96912
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1050-134121.flac |",
-      "real_speaker_id": "1050",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-      "start_time": 3.974924081844436,
-      "speaker_id": "511"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4071/laugh/0062.wav",
-      "duration": 1.36,
-      "start_time": 8.340578200409139,
-      "speaker_id": "4071"
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-    {
-      "event_class": "cough",
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-      "duration": 1.2064447064034267,
-      "start_time": 15.21080043006927,
-      "speaker_id": "4071"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027063.json b/conversations/conv_027063.json
deleted file mode 100644
index c5772984d650b402e98fdbe5a1d25697575c02eb..0000000000000000000000000000000000000000
--- a/conversations/conv_027063.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.79286079394087,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.511711728398393,
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-      "duration": 3.555984508176242,
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-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.392391941318216,
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-      "duration_frames": 69277,
-      "overlap": false,
-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 100225
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.352352011576826,
-      "end_time": 21.60990777087297,
-      "duration": 5.2575557592961415,
-      "start_frame": 261637,
-      "duration_frames": 84120,
-      "overlap": false,
-      "utterance_id": "1977-133046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.594749899776488,
-      "end_time": 26.541272155186515,
-      "duration": 3.9465222554100285,
-      "start_frame": 361515,
-      "duration_frames": 63144,
-      "overlap": false,
-      "utterance_id": "8088-284756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8088-284756.flac |",
-      "real_speaker_id": "8088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.6401562783861,
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-      "overlap": false,
-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 169502
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6196/laugh/0046.wav",
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-      "speaker_id": "6196"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027068.json b/conversations/conv_027068.json
deleted file mode 100644
index e5dc93668b85e43c3033a6b0c9d3bd4dc08218c7..0000000000000000000000000000000000000000
--- a/conversations/conv_027068.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6695-71407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-71407.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.937195493758983,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82334.flac |",
-      "real_speaker_id": "6923",
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-      "segment_id": "seg0002",
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-      "start_time": 11.416136672416423,
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-      "overlap": false,
-      "utterance_id": "7618-102372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102372.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.011594464209306,
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-      "utterance_id": "6923-82337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82337.flac |",
-      "real_speaker_id": "6923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.24097519488999,
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-      "overlap": false,
-      "utterance_id": "7618-102366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102366.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.179248741222807,
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-      "duration": 3.958899310946847,
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-      "duration_frames": 63342,
-      "overlap": false,
-      "utterance_id": "7618-102372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102372.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 70631
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.184259569436744,
-      "end_time": 32.0,
-      "duration": 0.8157404305632561,
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-      "utterance_id": "6923-82335",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82335.flac |",
-      "real_speaker_id": "6923",
-      "position_frames": 0
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-  ],
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "6923"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027075.json b/conversations/conv_027075.json
deleted file mode 100644
index 8ec6a1009b5e02610f116c8b4005c612fb952630..0000000000000000000000000000000000000000
--- a/conversations/conv_027075.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.162002639010733,
-      "duration": 4.162002639010733,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "742-128034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.532954814738364,
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-      "utterance_id": "8470-286666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286666.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "742-128033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8470-286666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286666.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 90598
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.367307006537672,
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-      "utterance_id": "742-128033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 82995
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.222326699687606,
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-      "utterance_id": "6544-231862",
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-      "real_speaker_id": "6544",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "duration": 1.26,
-      "start_time": 28.708092616445924,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6544/laugh/0001.wav",
-      "duration": 0.8,
-      "start_time": 31.2,
-      "speaker_id": "6544"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027079.json b/conversations/conv_027079.json
deleted file mode 100644
index 00c863b58db0304fbaf984c8aff606ea479f2a11..0000000000000000000000000000000000000000
--- a/conversations/conv_027079.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.739118841898566,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.849114819470804,
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-      "start_frame": 0,
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-      "utterance_id": "7752-113336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-113336.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16817.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.35484460210177,
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-      "duration": 5.908033371605307,
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.12260646819372,
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-      "utterance_id": "3796-16815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16815.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 2.2530578350984505,
-      "start_time": 21.704631554543514
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7752/laugh/0029.wav",
-      "duration": 1.0,
-      "start_time": 22.682286528741745,
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-      "event_class": "cough",
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-      "duration": 0.8841263258648697,
-      "start_time": 28.283120994781047,
-      "speaker_id": "1413"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027080.json b/conversations/conv_027080.json
deleted file mode 100644
index 9aa63799f212e6df410f5c0f38604c4854a856fa..0000000000000000000000000000000000000000
--- a/conversations/conv_027080.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.239815070433159,
-      "duration": 5.239815070433159,
-      "start_frame": 0,
-      "duration_frames": 83837,
-      "overlap": false,
-      "utterance_id": "915-163369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163369.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.605598387796917,
-      "end_time": 10.390586321009536,
-      "duration": 4.78498793321262,
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-      "utterance_id": "915-163372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163372.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.675011827907309,
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-      "utterance_id": "3852-175448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.141166637052958,
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-      "duration": 5.858610218873139,
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-      "overlap": false,
-      "utterance_id": "915-163370",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163370.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.103142491438586,
-      "end_time": 27.94100262706114,
-      "duration": 3.8378601356225506,
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-      "duration_frames": 61405,
-      "overlap": true,
-      "utterance_id": "2910-131096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2910-131096.flac |",
-      "real_speaker_id": "2910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.96583858870078,
-      "end_time": 32.0,
-      "duration": 3.0341614112992197,
-      "start_frame": 463453,
-      "duration_frames": 48546,
-      "overlap": false,
-      "utterance_id": "3852-175448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
-      "position_frames": 92735
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 16.053311930179593,
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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-      "start_time": 4.142368394393374,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/915/cough/0059.wav",
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-      "duration": 0.800288845552237,
-      "start_time": 31.199711154447762,
-      "speaker_id": "3852"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027087.json b/conversations/conv_027087.json
deleted file mode 100644
index 4c85891207e0a0dcde196a130a7d5f5a969f4245..0000000000000000000000000000000000000000
--- a/conversations/conv_027087.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1958-144503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.300186795614979,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168648.flac |",
-      "real_speaker_id": "3656",
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 83563
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration": 3.3310830897373855,
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-      "overlap": false,
-      "utterance_id": "3656-168618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168618.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.87678573664836,
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-      "duration_frames": 76413,
-      "overlap": false,
-      "utterance_id": "1958-144503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 160661
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "6763-74798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74798.flac |",
-      "real_speaker_id": "6763",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.44989476198257,
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-      "duration": 0.55010523801743,
-      "start_frame": 503198,
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-      "overlap": false,
-      "utterance_id": "3656-168648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168648.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 63868
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1958/laugh/0052.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3656/laugh/0001.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 19.654031106485462,
-      "speaker_id": "1958"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6763/laugh/0016.wav",
-      "duration": 0.92,
-      "start_time": 30.70046966893687,
-      "speaker_id": "6763"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027091.json b/conversations/conv_027091.json
deleted file mode 100644
index 48b9f9e8587ce103d634659268ac6433a1138f91..0000000000000000000000000000000000000000
--- a/conversations/conv_027091.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.023431428695556,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.61748097421017,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4598-6176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4598-6176.flac |",
-      "real_speaker_id": "4598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-133059.flac |",
-      "real_speaker_id": "2089",
-      "position_frames": 0
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-      "utterance_id": "4591-14356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-14356.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "duration_frames": 101866,
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-      "real_speaker_id": "2089",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.31826263366478,
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-      "utterance_id": "4591-16221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-16221.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "4591-16221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-16221.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 66267
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2089/laugh/0138.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4591/laugh/0087.wav",
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-      "start_time": 22.4591805403139,
-      "speaker_id": "4591"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027096.json b/conversations/conv_027096.json
deleted file mode 100644
index 9deaf5fe0c7b686404fbbf99897b852c782085c0..0000000000000000000000000000000000000000
--- a/conversations/conv_027096.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.01272882803143,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6954-76168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76168.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-10347.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76168.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 96881
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-      "speaker_id": 0,
-      "start_time": 18.64971500642186,
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-      "real_speaker_id": "7713",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-10347.flac |",
-      "real_speaker_id": "5876",
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-  "background_events": [
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-      "event_class": "laugh",
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-      "start_time": 17.816977572770877,
-      "speaker_id": "7713"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_027106.json b/conversations/conv_027106.json
deleted file mode 100644
index a5fff245ed1206dcdf03ccc9dc5d0a9b586a0107..0000000000000000000000000000000000000000
--- a/conversations/conv_027106.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7265-74923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7265-74923.flac |",
-      "real_speaker_id": "7265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.602959103881305,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70976.flac |",
-      "real_speaker_id": "6685",
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-      "utterance_id": "7265-74923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7265-74923.flac |",
-      "real_speaker_id": "7265",
-      "position_frames": 103663
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.79314302243216,
-      "end_time": 32.0,
-      "duration": 5.206856977567838,
-      "start_frame": 428690,
-      "duration_frames": 83309,
-      "overlap": false,
-      "utterance_id": "7265-74923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7265-74923.flac |",
-      "real_speaker_id": "7265",
-      "position_frames": 215653
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7265/laugh/0074.wav",
-      "duration": 1.16,
-      "start_time": 2.7004389379850724,
-      "speaker_id": "7265"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7265/cough/0137.wav",
-      "duration": 0.947685090099011,
-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 22.909798112562097,
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027110.json b/conversations/conv_027110.json
deleted file mode 100644
index 93c93352be457a5ce474243374fdbab03070aab4..0000000000000000000000000000000000000000
--- a/conversations/conv_027110.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6676-275138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-275138.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "8023-286247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286247.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
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-      "utterance_id": "6676-280387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-280387.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "6978-92210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-92210.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.36823710478019,
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-      "start_frame": 341891,
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-      "overlap": false,
-      "utterance_id": "8023-286247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286247.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 56711
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.08159087179634,
-      "end_time": 31.023832779247073,
-      "duration": 4.942241907450733,
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-      "duration_frames": 79075,
-      "overlap": false,
-      "utterance_id": "6978-92936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-92936.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.413343555682292,
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-      "duration": 0.5866564443177076,
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-      "utterance_id": "6676-275138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-275138.flac |",
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6676/laugh/0099.wav",
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-      "start_time": 1.2111466285913353,
-      "speaker_id": "6676"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027111.json b/conversations/conv_027111.json
deleted file mode 100644
index ce498c16ea6bc4d8ac94c4e64ee39a5b489219cd..0000000000000000000000000000000000000000
--- a/conversations/conv_027111.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.5022204345462695,
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-      "overlap": false,
-      "utterance_id": "5628-47230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47230.flac |",
-      "real_speaker_id": "5628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.971437137204224,
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-      "utterance_id": "3645-39840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-39840.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "end_time": 15.246544278083716,
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-      "duration_frames": 87991,
-      "overlap": false,
-      "utterance_id": "3645-186230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-186230.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.913807091873897,
-      "end_time": 19.634727015008867,
-      "duration": 3.7209199231349688,
-      "start_frame": 254620,
-      "duration_frames": 59534,
-      "overlap": false,
-      "utterance_id": "1545-161007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.19344362287982,
-      "end_time": 25.11938763316915,
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-      "duration_frames": 78815,
-      "overlap": false,
-      "utterance_id": "3645-186230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-186230.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 87991
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.4574994642033,
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-      "duration_frames": 79088,
-      "overlap": false,
-      "utterance_id": "5628-22450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-22450.flac |",
-      "real_speaker_id": "5628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.475277123776646,
-      "end_time": 32.0,
-      "duration": 0.524722876223354,
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-      "overlap": false,
-      "utterance_id": "1545-161007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 59534
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 15.565464640466637,
-      "start_time": 0.19787224146980348
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_1.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5628/cough/0088.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1545/cough/0049.wav",
-      "duration": 0.6448521698370002,
-      "start_time": 15.182253041249728,
-      "speaker_id": "1545"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3645/laugh/0059.wav",
-      "duration": 0.5184697648715046,
-      "start_time": 19.58536078332012,
-      "speaker_id": "3645"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1545/laugh/0033.wav",
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-      "start_time": 30.75438035891941,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1545/cough/0026.wav",
-      "duration": 0.3513847299775882,
-      "start_time": 30.964530714502246,
-      "speaker_id": "1545"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027126.json b/conversations/conv_027126.json
deleted file mode 100644
index 5685a22d9eee6ef5bb6d953bf661f31b66d9b75e..0000000000000000000000000000000000000000
--- a/conversations/conv_027126.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.234169134120019,
-      "duration": 5.234169134120019,
-      "start_frame": 0,
-      "duration_frames": 83746,
-      "overlap": false,
-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-279777.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_027130.json b/conversations/conv_027130.json
deleted file mode 100644
index d1076874d156c34054f6b89a4976688b9eb8113d..0000000000000000000000000000000000000000
--- a/conversations/conv_027130.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.910463969542246,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
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-      "real_speaker_id": "4535",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
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\ No newline at end of file
diff --git a/conversations/conv_027146.json b/conversations/conv_027146.json
deleted file mode 100644
index e523a60a33837be71917047a7b7ce849028e8e86..0000000000000000000000000000000000000000
--- a/conversations/conv_027146.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
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-}
\ No newline at end of file
diff --git a/conversations/conv_027147.json b/conversations/conv_027147.json
deleted file mode 100644
index 1b3fd9b1b7d3543aa5f1a61d3902e42166cb102a..0000000000000000000000000000000000000000
--- a/conversations/conv_027147.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4495/cough/0061.wav",
-      "duration": 1.3360023907515846,
-      "start_time": 17.608684853746404,
-      "speaker_id": "4495"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1392/laugh/0097.wav",
-      "duration": 0.5933214300775096,
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-      "speaker_id": "1392"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3137/cough/0033.wav",
-      "duration": 1.1200139043976027,
-      "start_time": 28.57167215213816,
-      "speaker_id": "3137"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027151.json b/conversations/conv_027151.json
deleted file mode 100644
index 240ad024bb436d4794b2d800821455affbf234d2..0000000000000000000000000000000000000000
--- a/conversations/conv_027151.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.5477805485050595,
-      "duration": 4.5477805485050595,
-      "start_frame": 0,
-      "duration_frames": 72764,
-      "overlap": false,
-      "utterance_id": "4807-26852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26852.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.2739426274318015,
-      "end_time": 10.437180443665092,
-      "duration": 5.1632378162332895,
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-      "duration_frames": 82611,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26853.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 0
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-      "utterance_id": "3733-140718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 17.203304169952983,
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-      "overlap": false,
-      "utterance_id": "4807-26853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26853.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 82611
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.196005948595307,
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-      "duration": 3.635701429993552,
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-      "duration_frames": 58171,
-      "overlap": true,
-      "utterance_id": "3733-140718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 85515
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.13719331054056,
-      "end_time": 30.25471188700805,
-      "duration": 3.117518576467489,
-      "start_frame": 434195,
-      "duration_frames": 49880,
-      "overlap": false,
-      "utterance_id": "3733-140718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 143686
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.40153164720255,
-      "end_time": 32.0,
-      "duration": 1.5984683527974504,
-      "start_frame": 486424,
-      "duration_frames": 25575,
-      "overlap": false,
-      "utterance_id": "4807-26853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26853.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 166324
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-      "start_time": 3.801371197982534
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.4283174840423953,
-      "start_time": 21.431765399840806
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
-      "duration": 0.2440362811791383,
-      "start_time": 27.120150068430842
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3733/cough/0025.wav",
-      "duration": 1.4298557999201107,
-      "start_time": 22.560980811748,
-      "speaker_id": "3733"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027167.json b/conversations/conv_027167.json
deleted file mode 100644
index 74d1d9a7f57766e756341a1693997cd7d9be1c51..0000000000000000000000000000000000000000
--- a/conversations/conv_027167.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.6592271277761546,
-      "duration": 4.6592271277761546,
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-      "overlap": false,
-      "utterance_id": "4455-14896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-14896.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.328936730058538,
-      "end_time": 11.651718861261195,
-      "duration": 6.322782131202658,
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-      "overlap": false,
-      "utterance_id": "2053-138888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.421272090467115,
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-      "overlap": false,
-      "utterance_id": "4455-90866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-90866.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.9426241148775,
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-      "overlap": false,
-      "utterance_id": "1168-134958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.111642052130367,
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-      "start_frame": 369786,
-      "duration_frames": 80059,
-      "overlap": true,
-      "utterance_id": "2053-138901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138901.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.350666023988385,
-      "end_time": 32.0,
-      "duration": 2.649333976011615,
-      "start_frame": 469610,
-      "duration_frames": 42389,
-      "overlap": false,
-      "utterance_id": "4455-90866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-90866.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 62315
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
-      "duration": 16.838049886621317,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
-      "duration": 1.1230080135573859,
-      "start_time": 6.541366046811485
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2053/laugh/0007.wav",
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-      "speaker_id": "2053"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1168/laugh/0088.wav",
-      "duration": 1.16,
-      "start_time": 22.777635578559593,
-      "speaker_id": "1168"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1168/cough/0022.wav",
-      "duration": 0.3131867038305656,
-      "start_time": 16.5552850637055,
-      "speaker_id": "1168"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4455/laugh/0057.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.6110524431084261,
-      "start_time": 31.388947556891573,
-      "speaker_id": "4455"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027171.json b/conversations/conv_027171.json
deleted file mode 100644
index bc8c7d41df7a0a7563f5a2b38485c1be3a3cb9c5..0000000000000000000000000000000000000000
--- a/conversations/conv_027171.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.53802234969639,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.708978774322113,
-      "duration": 6.708978774322113,
-      "start_frame": 0,
-      "duration_frames": 107343,
-      "overlap": false,
-      "utterance_id": "3835-178030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178030.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.849782124003462,
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-      "overlap": true,
-      "utterance_id": "797-127182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "8011-117866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.853166424208826,
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-      "utterance_id": "797-127183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127183.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.882977126448594,
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-      "utterance_id": "3835-178030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178030.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 107343
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.436137110089295,
-      "end_time": 31.53802234969639,
-      "duration": 1.1018852396070962,
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-      "duration_frames": 17630,
-      "overlap": true,
-      "utterance_id": "8011-117866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 84831
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3835/laugh/0064.wav",
-      "duration": 0.88,
-      "start_time": 0,
-      "speaker_id": "3835"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3835/laugh/0054.wav",
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-      "start_time": 25.031904608549034,
-      "speaker_id": "3835"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3835/cough/0056.wav",
-      "duration": 1.0042610311331224,
-      "start_time": 23.798804314612745,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8011/laugh/0051.wav",
-      "duration": 1.0315291296921645,
-      "start_time": 29.372218510703018,
-      "speaker_id": "8011"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027183.json b/conversations/conv_027183.json
deleted file mode 100644
index cde562b9ce1864b9cff821edb702a1ffff70ebac..0000000000000000000000000000000000000000
--- a/conversations/conv_027183.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 5.160615689152632,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1710-133294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133294.flac |",
-      "real_speaker_id": "1710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.649325999200645,
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-      "utterance_id": "6965-277899",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4021-180238",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-291718.flac |",
-      "real_speaker_id": "6965",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-277899.flac |",
-      "real_speaker_id": "6965",
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\ No newline at end of file
diff --git a/conversations/conv_027184.json b/conversations/conv_027184.json
deleted file mode 100644
index d479478fe7554091333f0799c840c541ded158f2..0000000000000000000000000000000000000000
--- a/conversations/conv_027184.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2201-7371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2201-7371.flac |",
-      "real_speaker_id": "2201",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "2998-160955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2998-160955.flac |",
-      "real_speaker_id": "2998",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 64751
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.998230054766267,
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-      "duration": 5.0017699452337325,
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-      "overlap": false,
-      "utterance_id": "2201-160438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2201-160438.flac |",
-      "real_speaker_id": "2201",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027188.json b/conversations/conv_027188.json
deleted file mode 100644
index 3de591ef75f47403cea3cd415e1f294cdfa9d28e..0000000000000000000000000000000000000000
--- a/conversations/conv_027188.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.08521159738073,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56175.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/606-130296.flac |",
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-      "utterance_id": "3979-10702",
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-      "real_speaker_id": "3979",
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-      "real_speaker_id": "6082",
-      "position_frames": 0
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-      "utterance_id": "3979-10701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027192.json b/conversations/conv_027192.json
deleted file mode 100644
index 1c31dcb8b19863f4a77d8a9f3bddc88d926b9e7b..0000000000000000000000000000000000000000
--- a/conversations/conv_027192.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.647205426446504,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "4859-29340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-29340.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-29340.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4859-22176",
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-      "real_speaker_id": "4859",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027195.json b/conversations/conv_027195.json
deleted file mode 100644
index 5f623df3fd1762a482cd0626908fec2baca2ce32..0000000000000000000000000000000000000000
--- a/conversations/conv_027195.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1116-132851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132851.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-96101.flac |",
-      "real_speaker_id": "7702",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132847.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-292568.flac |",
-      "real_speaker_id": "7702",
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-      "segment_id": "seg0005",
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-      "duration": 3.929594727946906,
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-      "utterance_id": "1116-132851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132851.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 74743
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027203.json b/conversations/conv_027203.json
deleted file mode 100644
index aaa8d08467bcc2285c0679fd41b1dd4fa3161ea6..0000000000000000000000000000000000000000
--- a/conversations/conv_027203.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.72044792483192,
-      "end_time": 11.853016864566987,
-      "duration": 6.132568939735067,
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-      "utterance_id": "2269-147627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-147627.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.660961176584784,
-      "end_time": 18.337822179780105,
-      "duration": 5.676861003195322,
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-      "duration_frames": 90829,
-      "overlap": false,
-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 78503
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.245806028895693,
-      "end_time": 25.214925597726946,
-      "duration": 5.969119568831252,
-      "start_frame": 307932,
-      "duration_frames": 95505,
-      "overlap": false,
-      "utterance_id": "1018-133447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1018-133447.flac |",
-      "real_speaker_id": "1018",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.07802504201399,
-      "end_time": 32.0,
-      "duration": 5.921974957986009,
-      "start_frame": 417248,
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-      "utterance_id": "2269-165387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-165387.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 18.589642867628378,
-      "speaker_id": "1124"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027204.json b/conversations/conv_027204.json
deleted file mode 100644
index 52ecd8afc5f1749e9a58d55244ad2a575d4f683a..0000000000000000000000000000000000000000
--- a/conversations/conv_027204.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.358308003542167,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.472510776114837,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/29-123032.flac |",
-      "real_speaker_id": "29",
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-      "overlap": true,
-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 67988
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8098-278252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8098-278252.flac |",
-      "real_speaker_id": "8098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.340727259126908,
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-      "overlap": false,
-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 127059
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.46615964533107,
-      "end_time": 31.358308003542167,
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-      "start_frame": 455458,
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-      "overlap": true,
-      "utterance_id": "29-123027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/29-123027.flac |",
-      "real_speaker_id": "29",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "start_time": 0,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/29/laugh/0003.wav",
-      "duration": 1.71913884986297,
-      "start_time": 10.700170842951469,
-      "speaker_id": "29"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027212.json b/conversations/conv_027212.json
deleted file mode 100644
index 21556e5a4cedf1bc27a3f6938fd1c5b861061214..0000000000000000000000000000000000000000
--- a/conversations/conv_027212.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.228390068949281,
-      "start_frame": 0,
-      "duration_frames": 99654,
-      "overlap": false,
-      "utterance_id": "2960-155152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.550139089836803,
-      "end_time": 10.132695836941915,
-      "duration": 3.5825567471051123,
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-      "duration_frames": 57320,
-      "overlap": false,
-      "utterance_id": "335-125941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125941.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2960-155151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155151.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.48881335276694,
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-      "overlap": false,
-      "utterance_id": "5487-4873",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-4873.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.45685727697102,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125941.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 57320
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.05552136100726,
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-      "duration": 4.9444786389927415,
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-      "overlap": false,
-      "utterance_id": "5487-41940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-41940.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5487/laugh/0057.wav",
-      "duration": 1.3,
-      "start_time": 15.045524119436939,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/335/laugh/0056.wav",
-      "duration": 1.44,
-      "start_time": 19.90613775313344,
-      "speaker_id": "335"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027215.json b/conversations/conv_027215.json
deleted file mode 100644
index 73556b3415b46e3581f1e8446c50616f1c4a30e6..0000000000000000000000000000000000000000
--- a/conversations/conv_027215.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.771879899725192,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.716421193448953,
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-      "start_frame": 0,
-      "duration_frames": 75462,
-      "overlap": false,
-      "utterance_id": "7565-101287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101287.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.704337085561877,
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-      "duration_frames": 72804,
-      "overlap": false,
-      "utterance_id": "3703-73732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-73732.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3703-71550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71550.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.409036567945005,
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-      "utterance_id": "7565-101287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101287.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 75462
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7565/cough/0013.wav",
-      "duration": 1.24,
-      "start_time": 4.842190152003881,
-      "speaker_id": "7565"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7565/laugh/0029.wav",
-      "duration": 1.12,
-      "start_time": 10.780015268074363,
-      "speaker_id": "7565"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027219.json b/conversations/conv_027219.json
deleted file mode 100644
index 7d615aa655b606ac4dfd643d43d538d84360df54..0000000000000000000000000000000000000000
--- a/conversations/conv_027219.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 106019,
-      "overlap": false,
-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.182816541848829,
-      "end_time": 12.287246786212355,
-      "duration": 5.1044302443635265,
-      "start_frame": 114925,
-      "duration_frames": 81670,
-      "overlap": false,
-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 106019
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.424116853486208,
-      "end_time": 18.323136471091605,
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-      "overlap": false,
-      "utterance_id": "1737-142396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-142396.flac |",
-      "real_speaker_id": "1737",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.90812318612212,
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-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 187689
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1737-146161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-146161.flac |",
-      "real_speaker_id": "1737",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.509423485107536,
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-      "duration_frames": 39849,
-      "overlap": false,
-      "utterance_id": "8527-281131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8527/laugh/0069.wav",
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-      "speaker_id": "8527"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4770370253523069,
-      "start_time": 28.975348296211997,
-      "speaker_id": "1737"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "8527"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027223.json b/conversations/conv_027223.json
deleted file mode 100644
index e16d4c55cad3fabe14271246edf1d20cb2d16321..0000000000000000000000000000000000000000
--- a/conversations/conv_027223.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.772791749448018,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3020-892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-892.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.802702210455201,
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-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 0
-    },
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-      "overlap": true,
-      "utterance_id": "1779-142733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.018406438027686,
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-      "overlap": true,
-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 58982
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-892.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 81294
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_frame": 439606,
-      "duration_frames": 68758,
-      "overlap": true,
-      "utterance_id": "1779-142733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 65255
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3020/laugh/0080.wav",
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-      "start_time": 0,
-      "speaker_id": "3020"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6411/cough/0041.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 13.974141903377769,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3020/laugh/0027.wav",
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-      "speaker_id": "3020"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027228.json b/conversations/conv_027228.json
deleted file mode 100644
index 4b7c72c9d0fa59c0c78f03fe73d0b45147715066..0000000000000000000000000000000000000000
--- a/conversations/conv_027228.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2156-17942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-17942.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "3994-156757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-156757.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0004",
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-  "paralinguistic_events": [
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-    {
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027235.json b/conversations/conv_027235.json
deleted file mode 100644
index 3fac7b78260b14f6a7aa71eff53cd7c0b359163c..0000000000000000000000000000000000000000
--- a/conversations/conv_027235.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7051-259009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
-      "real_speaker_id": "7051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-27671.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4853-29413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-29413.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.534118193416504,
-      "end_time": 23.11979932804804,
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-      "overlap": false,
-      "utterance_id": "7051-259009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
-      "real_speaker_id": "7051",
-      "position_frames": 90928
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.43552946231435,
-      "end_time": 28.938974996788144,
-      "duration": 5.503445534473794,
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-      "duration_frames": 88055,
-      "overlap": false,
-      "utterance_id": "4853-29413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-29413.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 92176
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.554550868541,
-      "end_time": 32.0,
-      "duration": 2.445449131459,
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-      "duration_frames": 39127,
-      "overlap": false,
-      "utterance_id": "6993-83607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83607.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.52,
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 16.972766789692145,
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 22.214395648960814,
-      "speaker_id": "4853"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027238.json b/conversations/conv_027238.json
deleted file mode 100644
index 54a86d8ed1ef710451b7c8273038b74fbbc59486..0000000000000000000000000000000000000000
--- a/conversations/conv_027238.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.631737998175584,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6177-22698.flac |",
-      "real_speaker_id": "6177",
-      "position_frames": 0
-    },
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-      "real_speaker_id": "6177",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5765-231845.flac |",
-      "real_speaker_id": "5765",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.268345878122698,
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-      "real_speaker_id": "6352",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6177-57662.flac |",
-      "real_speaker_id": "6177",
-      "position_frames": 76641
-    }
-  ],
-  "background_events": [
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-      "speaker_id": "6177"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027239.json b/conversations/conv_027239.json
deleted file mode 100644
index 831551bd6193e53c4d94ee43a5fef0255bc2158d..0000000000000000000000000000000000000000
--- a/conversations/conv_027239.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7603-274560.flac |",
-      "real_speaker_id": "7603",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7603",
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-    {
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-      "real_speaker_id": "7603",
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-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027242.json b/conversations/conv_027242.json
deleted file mode 100644
index 303b71dd892e0c7bf72a66ce181b7b6c586728d7..0000000000000000000000000000000000000000
--- a/conversations/conv_027242.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.48766071908691,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "4959-28894",
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-      "position_frames": 0
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-      "event_class": "cough",
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-      "duration": 0.78,
-      "start_time": 10.136706324671184,
-      "speaker_id": "6418"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5287/cough/0054.wav",
-      "duration": 1.0997293801499965,
-      "start_time": 15.21679785772008,
-      "speaker_id": "5287"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6418/laugh/0111.wav",
-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "6418"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027245.json b/conversations/conv_027245.json
deleted file mode 100644
index ea77a78e905d85f43923a9640940beb01555b110..0000000000000000000000000000000000000000
--- a/conversations/conv_027245.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.416383722774817,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7981-112056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112056.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.056514357208755,
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-      "duration": 5.397923118676266,
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-      "utterance_id": "956-157879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.060709021653093,
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-      "overlap": false,
-      "utterance_id": "7981-112061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.494759872000213,
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-      "duration_frames": 49986,
-      "overlap": false,
-      "utterance_id": "956-127932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.307586495265447,
-      "end_time": 24.692296531958256,
-      "duration": 4.38471003669281,
-      "start_frame": 324921,
-      "duration_frames": 70155,
-      "overlap": true,
-      "utterance_id": "7981-112061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 97705
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.667354976006152,
-      "end_time": 32.0,
-      "duration": 6.332645023993848,
-      "start_frame": 410677,
-      "duration_frames": 101322,
-      "overlap": false,
-      "utterance_id": "7387-279272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7387-279272.flac |",
-      "real_speaker_id": "7387",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7981/laugh/0022.wav",
-      "duration": 1.0478653063158514,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7981/laugh/0001.wav",
-      "duration": 1.48,
-      "start_time": 12.031636726175932,
-      "speaker_id": "7981"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/956/laugh/0038.wav",
-      "duration": 1.0813492530353046,
-      "start_time": 20.67461719330584,
-      "speaker_id": "956"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7981/laugh/0051.wav",
-      "duration": 1.1188463791495078,
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-      "speaker_id": "7981"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.0968487883275329,
-      "start_time": 27.28992727774092,
-      "speaker_id": "7387"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027253.json b/conversations/conv_027253.json
deleted file mode 100644
index 7e1026d0f0ebf3a65213c5a445bd2c8dac94daa9..0000000000000000000000000000000000000000
--- a/conversations/conv_027253.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.342877845840242,
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-      "overlap": false,
-      "utterance_id": "5007-31603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31603.flac |",
-      "real_speaker_id": "5007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.9920049993742115,
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-      "utterance_id": "5007-31603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31603.flac |",
-      "real_speaker_id": "5007",
-      "position_frames": 101486
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1456-136846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-136846.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.67578841773138,
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-      "duration_frames": 74792,
-      "overlap": true,
-      "utterance_id": "5007-31609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31609.flac |",
-      "real_speaker_id": "5007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.00817180150063,
-      "end_time": 27.836914264394466,
-      "duration": 4.828742462893834,
-      "start_frame": 368130,
-      "duration_frames": 77259,
-      "overlap": true,
-      "utterance_id": "8040-111641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-111641.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.752834493318957,
-      "end_time": 32.0,
-      "duration": 3.2471655066810428,
-      "start_frame": 460045,
-      "duration_frames": 51954,
-      "overlap": false,
-      "utterance_id": "1456-136846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-136846.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 75791
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.2707052965077947,
-      "start_time": 9.108981880596172
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1456/laugh/0069.wav",
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-      "speaker_id": "1456"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5007/laugh/0038.wav",
-      "duration": 1.0026237506296025,
-      "start_time": 16.594119399000206,
-      "speaker_id": "5007"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027254.json b/conversations/conv_027254.json
deleted file mode 100644
index f7490cefee830402e7bee92aebb840dd99f5a865..0000000000000000000000000000000000000000
--- a/conversations/conv_027254.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7816-108621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108621.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "duration_frames": 103088,
-      "overlap": false,
-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7816-108620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108620.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
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-    {
-      "segment_id": "seg0004",
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-      "overlap": true,
-      "utterance_id": "1901-147822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-147822.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.935886605227765,
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-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 157680
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-    {
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-    {
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-      "event_class": "cough",
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-      "speaker_id": "7484"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027258.json b/conversations/conv_027258.json
deleted file mode 100644
index 29cce768b1e5314e7885f0005b455160c3c0e2d4..0000000000000000000000000000000000000000
--- a/conversations/conv_027258.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5154-26558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26558.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35456.flac |",
-      "real_speaker_id": "5224",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "5154-26558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26558.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 77393
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35453.flac |",
-      "real_speaker_id": "5224",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.83836026667532,
-      "end_time": 32.0,
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-      "utterance_id": "5154-26559",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26559.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5224/laugh/0126.wav",
-      "duration": 1.272353416191136,
-      "start_time": 26.608739754282563,
-      "speaker_id": "5224"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5154/laugh/0092.wav",
-      "duration": 0.8789493775681975,
-      "start_time": 30.913595985564225,
-      "speaker_id": "5154"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027262.json b/conversations/conv_027262.json
deleted file mode 100644
index 51c33e2675d77697485a96d1e322f6f051606581..0000000000000000000000000000000000000000
--- a/conversations/conv_027262.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.585151261803577,
-      "duration": 3.585151261803577,
-      "start_frame": 0,
-      "duration_frames": 57362,
-      "overlap": false,
-      "utterance_id": "127-129385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.026475112137467,
-      "end_time": 10.288780993130448,
-      "duration": 6.26230588099298,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 10.537265912422782,
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-      "duration_frames": 82922,
-      "overlap": false,
-      "utterance_id": "127-129390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.063187904974672,
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-      "overlap": false,
-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 100196
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.85980807051516,
-      "end_time": 27.639409436261644,
-      "duration": 5.779601365746483,
-      "start_frame": 349756,
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-      "overlap": false,
-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.205244302450286,
-      "end_time": 32.0,
-      "duration": 3.7947556975497143,
-      "start_frame": 451283,
-      "duration_frames": 60716,
-      "overlap": false,
-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 190461
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
-      "duration": 15.55204081632653,
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.14,
-      "start_time": 11.509392154823855,
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-    {
-      "event_class": "cough",
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-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "4362"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027274.json b/conversations/conv_027274.json
deleted file mode 100644
index 057ac693a6db8602f5f394defed8619247cbb817..0000000000000000000000000000000000000000
--- a/conversations/conv_027274.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-715.flac |",
-      "real_speaker_id": "3922",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "218-131206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 71622
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "3288-7156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3288-7156.flac |",
-      "real_speaker_id": "3288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.057314444225526,
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-      "overlap": false,
-      "utterance_id": "3922-715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-715.flac |",
-      "real_speaker_id": "3922",
-      "position_frames": 84726
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.53152189472865,
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-      "utterance_id": "3288-7157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3288-7157.flac |",
-      "real_speaker_id": "3288",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-      "duration": 1.24,
-      "start_time": 10.402630885606998,
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3288/laugh/0034.wav",
-      "duration": 1.0,
-      "start_time": 27.46196429051951,
-      "speaker_id": "3288"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027278.json b/conversations/conv_027278.json
deleted file mode 100644
index 52a1d91037f530aa68d3f2cf3e1c439ee462ac1a..0000000000000000000000000000000000000000
--- a/conversations/conv_027278.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "start_frame": 0,
-      "duration_frames": 67028,
-      "overlap": false,
-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "3137-163504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163504.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 67028
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.23495423047373,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163489.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 22.30102506425817,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 178186
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "3137-163504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163504.flac |",
-      "real_speaker_id": "3137",
-      "position_frames": 66763
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3137/cough/0091.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 27.55835196523986,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3137/laugh/0058.wav",
-      "duration": 1.12,
-      "start_time": 27.177033051672645,
-      "speaker_id": "3137"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027280.json b/conversations/conv_027280.json
deleted file mode 100644
index 89dfba8099e00c3396a38370e2719ce91120195e..0000000000000000000000000000000000000000
--- a/conversations/conv_027280.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.4455348900028095,
-      "duration": 4.4455348900028095,
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-      "duration_frames": 71128,
-      "overlap": false,
-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.615308286270889,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276912.flac |",
-      "real_speaker_id": "8259",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7326-245693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-245693.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276913.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.764999763570913,
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 71128
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.266026025287765,
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-      "duration": 0.7339739747122351,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276912.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 51282
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-      "speaker_id": "8259"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027281.json b/conversations/conv_027281.json
deleted file mode 100644
index 06be88f83dcd091a559aad68766b222cff1cb12d..0000000000000000000000000000000000000000
--- a/conversations/conv_027281.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "4839-15307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15307.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.999253687066329,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148526.flac |",
-      "real_speaker_id": "2063",
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-      "utterance_id": "8228-232690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8228-232690.flac |",
-      "real_speaker_id": "8228",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148526.flac |",
-      "real_speaker_id": "2063",
-      "position_frames": 63897
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.38041962471146,
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-      "utterance_id": "4839-15305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15305.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.179490090553877,
-      "end_time": 32.0,
-      "duration": 1.8205099094461232,
-      "start_frame": 482871,
-      "duration_frames": 29128,
-      "overlap": false,
-      "utterance_id": "2063-148526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148526.flac |",
-      "real_speaker_id": "2063",
-      "position_frames": 147798
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_11.wav",
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-      "speaker_id": "2063"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027297.json b/conversations/conv_027297.json
deleted file mode 100644
index 3b6a37da1e65ca1873bf1b8ede361ee1a11e3c02..0000000000000000000000000000000000000000
--- a/conversations/conv_027297.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "1566-153036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-153036.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.45513215632174,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-153036.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 73516
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 69439
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "377-129292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129292.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.093291372643616,
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-      "utterance_id": "1566-153036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-153036.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 138762
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.643333683157554,
-      "end_time": 32.0,
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-      "duration_frames": 5706,
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-      "utterance_id": "8321-260942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-260942.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.32,
-      "start_time": 1.643572312091301,
-      "speaker_id": "1566"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/377/cough/0029.wav",
-      "duration": 1.2782973979634062,
-      "start_time": 9.797751115429445,
-      "speaker_id": "377"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1566/cough/0047.wav",
-      "duration": 0.82,
-      "start_time": 12.098155005208158,
-      "speaker_id": "1566"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027300.json b/conversations/conv_027300.json
deleted file mode 100644
index a186c21ecae749ccc48a0793cd251c37ce76e5ef..0000000000000000000000000000000000000000
--- a/conversations/conv_027300.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2162-181961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-181961.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.291871786845706,
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-      "duration_frames": 56697,
-      "overlap": false,
-      "utterance_id": "5319-42637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-42637.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.701588855297324,
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-      "utterance_id": "5319-64075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-64075.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.79177695600103,
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-      "duration": 3.011638371180794,
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-      "utterance_id": "2162-181961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-181961.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 75157
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5319-84357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-84357.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.995560541593292,
-      "end_time": 32.0,
-      "duration": 1.0044394584067078,
-      "start_frame": 495928,
-      "duration_frames": 16071,
-      "overlap": false,
-      "utterance_id": "4667-92224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92224.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
-      "duration": 16.848412698412698,
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_1.wav",
-      "duration": 0.09517006802721088,
-      "start_time": 21.790370368406435
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5319/laugh/0106.wav",
-      "duration": 1.72,
-      "start_time": 30.28,
-      "speaker_id": "5319"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5319/cough/0018.wav",
-      "duration": 1.1804458343654134,
-      "start_time": 30.819554165634585,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/cough/0053.wav",
-      "duration": 0.94,
-      "start_time": 31.06,
-      "speaker_id": "4667"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027307.json b/conversations/conv_027307.json
deleted file mode 100644
index ca0e13edfb3258838e7ecb6e4b785fc9d43ad077..0000000000000000000000000000000000000000
--- a/conversations/conv_027307.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_027311.json b/conversations/conv_027311.json
deleted file mode 100644
index 8ddf6875ac6bbfb0f3141572a32bd6e003a4d5e7..0000000000000000000000000000000000000000
--- a/conversations/conv_027311.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7067-76047.flac |",
-      "real_speaker_id": "7067",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_027316.json b/conversations/conv_027316.json
deleted file mode 100644
index 8c904751e0b2707d840bc8d798568447e0efd6b8..0000000000000000000000000000000000000000
--- a/conversations/conv_027316.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_027327.json b/conversations/conv_027327.json
deleted file mode 100644
index d1d9e2cc098cd5ef2f9a7c3906a4f10b2bc3d832..0000000000000000000000000000000000000000
--- a/conversations/conv_027327.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "start_time": 12.28980817572474,
-      "speaker_id": "2488"
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-      "start_time": 16.94284031817221,
-      "speaker_id": "1246"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027331.json b/conversations/conv_027331.json
deleted file mode 100644
index 75eae953415a90ec7f7bd81fc47a2ddb3ac9b6b9..0000000000000000000000000000000000000000
--- a/conversations/conv_027331.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.795210354338227,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.466538943144451,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
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-      "speaker_id": 2,
-      "start_time": 19.017972279061716,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258263.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 25.073742324115603,
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-      "utterance_id": "8266-258262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258262.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.508678595380577,
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-      "duration": 1.2865317589576506,
-      "start_frame": 488138,
-      "duration_frames": 20584,
-      "overlap": true,
-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 91716
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
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-      "start_time": 18.222199274238474,
-      "speaker_id": "8266"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027341.json b/conversations/conv_027341.json
deleted file mode 100644
index 331d0507f605414fa7ebff190f47af2adce3c3fe..0000000000000000000000000000000000000000
--- a/conversations/conv_027341.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "789-153215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153215.flac |",
-      "real_speaker_id": "789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.357979677479036,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252325.flac |",
-      "real_speaker_id": "6695",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153215.flac |",
-      "real_speaker_id": "789",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-71407.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "789-153215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153215.flac |",
-      "real_speaker_id": "789",
-      "position_frames": 167782
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.244084950208787,
-      "end_time": 32.0,
-      "duration": 0.7559150497912128,
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-      "overlap": false,
-      "utterance_id": "1355-39947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 50560
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-    {
-      "event_class": "cough",
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-    {
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-      "start_time": 29.88229725441498,
-      "speaker_id": "1355"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027346.json b/conversations/conv_027346.json
deleted file mode 100644
index 1b067317b4008106b4186b9141f6b2291f761fb6..0000000000000000000000000000000000000000
--- a/conversations/conv_027346.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "500-125123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "1992",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "3557",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 117798
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 21.72289324572066,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 172552
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "3557"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027350.json b/conversations/conv_027350.json
deleted file mode 100644
index c6caef049fafcd9515e295d61a66eb2c679f8696..0000000000000000000000000000000000000000
--- a/conversations/conv_027350.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "807",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142932.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 135015
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-  "background_events": [
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-      "event_class": "cough",
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-      "speaker_id": "1767"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027357.json b/conversations/conv_027357.json
deleted file mode 100644
index 0e08eb616a7623aa000ba1d48e0fc4310a818604..0000000000000000000000000000000000000000
--- a/conversations/conv_027357.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30106.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 7.387584946486265,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-14929.flac |",
-      "real_speaker_id": "4243",
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-      "utterance_id": "5139-30106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30106.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 98394
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.6903530670957,
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-      "utterance_id": "303-123506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123506.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.410853882502053,
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-      "utterance_id": "5139-30105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30105.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.023831933346177,
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-      "utterance_id": "4243-187024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-187024.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_027366.json b/conversations/conv_027366.json
deleted file mode 100644
index d2777230d8fc3986dfb780d85f52d4dbd1598bbc..0000000000000000000000000000000000000000
--- a/conversations/conv_027366.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 65729
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-57188.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 88834
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "duration": 4.0918079437023565,
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-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 174119
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-57188.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 177273
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.6,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027370.json b/conversations/conv_027370.json
deleted file mode 100644
index 4c1361b71a5d182583991246383d2805acf171e8..0000000000000000000000000000000000000000
--- a/conversations/conv_027370.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.216443810263716,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "5340-8685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8685.flac |",
-      "real_speaker_id": "5340",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7331-86047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86047.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "5340",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.824441923001274,
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-      "overlap": true,
-      "utterance_id": "7331-86027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86027.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_027382.json b/conversations/conv_027382.json
deleted file mode 100644
index 712d0ec5573385b89e6260d41cc1088a4d978ba2..0000000000000000000000000000000000000000
--- a/conversations/conv_027382.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.187903076576436,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 4.839127290905457,
-      "duration": 4.839127290905457,
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-      "utterance_id": "459-127522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-127522.flac |",
-      "real_speaker_id": "459",
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.348104395993471,
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-    {
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-      "utterance_id": "150-126107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "start_time": 21.730925472757995,
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-      "utterance_id": "4856-12103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4856-12103.flac |",
-      "real_speaker_id": "4856",
-      "position_frames": 98174
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.62915867150005,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 59254
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.52546642736117,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-132655.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
-      "duration": 0.672108843537415,
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/459/cough/0096.wav",
-      "duration": 1.2665437124490244,
-      "start_time": 0,
-      "speaker_id": "459"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "150"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027385.json b/conversations/conv_027385.json
deleted file mode 100644
index 5d83f809fb0f0fe1849905feafa66976bb21fa04..0000000000000000000000000000000000000000
--- a/conversations/conv_027385.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.119852763243765,
-      "duration": 4.119852763243765,
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-      "duration_frames": 65917,
-      "overlap": false,
-      "utterance_id": "3215-5764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5764.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.779313170877461,
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-      "utterance_id": "7198-80654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80654.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "6777-76701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76701.flac |",
-      "real_speaker_id": "6777",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 18.13747056190159,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.50912056735935,
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-      "utterance_id": "3215-5757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5757.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.912184651331838,
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-      "duration": 3.087815348668162,
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-      "overlap": false,
-      "utterance_id": "6777-76701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76701.flac |",
-      "real_speaker_id": "6777",
-      "position_frames": 95492
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "speaker_id": "6777"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027389.json b/conversations/conv_027389.json
deleted file mode 100644
index 2e8648df44245eac4a4e49e743ddf991cbb6dbec..0000000000000000000000000000000000000000
--- a/conversations/conv_027389.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4598-6176.flac |",
-      "real_speaker_id": "4598",
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-    {
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 67597
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4598-6176.flac |",
-      "real_speaker_id": "4598",
-      "position_frames": 97473
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.37759917654142,
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-      "utterance_id": "7079-89644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-89644.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.64701746311705,
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-      "duration": 4.352982536882951,
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-      "overlap": false,
-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 144512
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-    {
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-  "paralinguistic_events": [
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-      "speaker_id": "4042"
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-    {
-      "event_class": "cough",
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-      "duration": 1.02,
-      "start_time": 4.236196024207588,
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-      "event_class": "cough",
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-      "duration": 0.6101604429300802,
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-      "speaker_id": "4598"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027392.json b/conversations/conv_027392.json
deleted file mode 100644
index d0db6a14f139ba5f938e81a6452752e381838fe7..0000000000000000000000000000000000000000
--- a/conversations/conv_027392.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.525735556709202,
-      "duration": 5.525735556709202,
-      "start_frame": 0,
-      "duration_frames": 88411,
-      "overlap": false,
-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.746003368203037,
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-      "utterance_id": "3790-140725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 88411
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "2774-131722",
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-      "real_speaker_id": "2774",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 175045
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "end_time": 32.0,
-      "duration": 3.049887702743167,
-      "start_frame": 463201,
-      "duration_frames": 48798,
-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 71748
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  ],
-  "foreground_events": [
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-      "event_class": "Cat",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7475/laugh/0018.wav",
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-      "start_time": 0,
-      "speaker_id": "7475"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2774/cough/0000.wav",
-      "duration": 0.8,
-      "start_time": 23.255985687924863,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7475/laugh/0035.wav",
-      "duration": 1.76,
-      "start_time": 26.967361292740204,
-      "speaker_id": "7475"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027393.json b/conversations/conv_027393.json
deleted file mode 100644
index df4572e15dccc1b3bbc0a468f81b5ccd51a73754..0000000000000000000000000000000000000000
--- a/conversations/conv_027393.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6204272393882917,
-      "duration": 3.6204272393882917,
-      "start_frame": 0,
-      "duration_frames": 57926,
-      "overlap": false,
-      "utterance_id": "1100-135264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-135264.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8218608335959146,
-      "end_time": 7.3419756848275215,
-      "duration": 3.520114851231607,
-      "start_frame": 61149,
-      "duration_frames": 56321,
-      "overlap": false,
-      "utterance_id": "3240-131231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.765133825087963,
-      "end_time": 14.320618556770391,
-      "duration": 6.555484731682428,
-      "start_frame": 124242,
-      "duration_frames": 104887,
-      "overlap": false,
-      "utterance_id": "4854-24732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24732.flac |",
-      "real_speaker_id": "4854",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.466816487937585,
-      "end_time": 19.45351778404351,
-      "duration": 4.986701296105924,
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-      "duration_frames": 79787,
-      "overlap": true,
-      "utterance_id": "1100-124547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-124547.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.099523347184324,
-      "end_time": 24.535790424783414,
-      "duration": 4.43626707759909,
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-      "duration_frames": 70980,
-      "overlap": false,
-      "utterance_id": "3240-131231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 56321
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.399940460230876,
-      "end_time": 28.817075302635764,
-      "duration": 4.417134842404886,
-      "start_frame": 390399,
-      "duration_frames": 70674,
-      "overlap": true,
-      "utterance_id": "1100-124547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-124547.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 79787
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.16291425338351,
-      "end_time": 32.0,
-      "duration": 1.8370857466164914,
-      "start_frame": 482606,
-      "duration_frames": 29393,
-      "overlap": false,
-      "utterance_id": "3240-131232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131232.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
-      "duration": 4.6787956932389765,
-      "start_time": 19.53233412452448
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
-      "duration": 1.297974255775732,
-      "start_time": 30.545447298692967
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1100/laugh/0039.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "1100"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1100/cough/0006.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "1100"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3240/laugh/0010.wav",
-      "duration": 1.12,
-      "start_time": 7.567572938819128,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4854/cough/0085.wav",
-      "duration": 0.9067100980971519,
-      "start_time": 9.089035358033115,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1100/laugh/0014.wav",
-      "duration": 0.9603821910204505,
-      "start_time": 19.71280171497079,
-      "speaker_id": "1100"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1100/cough/0035.wav",
-      "duration": 0.885800953029682,
-      "start_time": 23.474296989829284,
-      "speaker_id": "1100"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3240/cough/0112.wav",
-      "duration": 0.44647883852288617,
-      "start_time": 29.550531858770395,
-      "speaker_id": "3240"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027404.json b/conversations/conv_027404.json
deleted file mode 100644
index 5cbf07349e547323acd0c71ec622cbc4c88cb64e..0000000000000000000000000000000000000000
--- a/conversations/conv_027404.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.02161748983858,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.351424623681187,
-      "duration": 4.351424623681187,
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-      "overlap": false,
-      "utterance_id": "6534-64470",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64470.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.834304801500918,
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-      "utterance_id": "5618-48831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48831.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.530918253477404,
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-      "duration": 6.317671816227299,
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-      "overlap": false,
-      "utterance_id": "6534-71091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-71091.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.46238697931604,
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-      "duration": 3.6416833498691785,
-      "start_frame": 247398,
-      "duration_frames": 58266,
-      "overlap": false,
-      "utterance_id": "6534-71091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-71091.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 101082
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.529864032999875,
-      "end_time": 23.697599008616088,
-      "duration": 4.167734975616213,
-      "start_frame": 312477,
-      "duration_frames": 66683,
-      "overlap": false,
-      "utterance_id": "5618-48830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48830.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.248265489599703,
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-      "duration_frames": 91240,
-      "overlap": false,
-      "utterance_id": "6181-216552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.932332545331267,
-      "end_time": 31.02161748983858,
-      "duration": 1.0892849445073125,
-      "start_frame": 478917,
-      "duration_frames": 17428,
-      "overlap": true,
-      "utterance_id": "6534-64469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64469.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
-      "duration": 1.0311945798511672,
-      "start_time": 3.018218638118397
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_027405.json b/conversations/conv_027405.json
deleted file mode 100644
index 756e0a416851913a3706e0160afb46640d9bf7ef..0000000000000000000000000000000000000000
--- a/conversations/conv_027405.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7704-106969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106969.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.655213613582714,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-56574.flac |",
-      "real_speaker_id": "5189",
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 72288,
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-      "utterance_id": "7704-106965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106965.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.40733894471572,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106965.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 72288
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5189-37999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-37999.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.26227096051035,
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-      "duration": 3.668197016236454,
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-      "duration_frames": 58691,
-      "overlap": true,
-      "utterance_id": "7704-106969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7704-106969.flac |",
-      "real_speaker_id": "7704",
-      "position_frames": 85554
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 0.49514095676351033,
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-      "utterance_id": "4379-18034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18034.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7704/laugh/0045.wav",
-      "duration": 0.6893470510290534,
-      "start_time": 11.708505717805888,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5189/laugh/0012.wav",
-      "duration": 1.1,
-      "start_time": 21.822797188604163,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5189/cough/0031.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027409.json b/conversations/conv_027409.json
deleted file mode 100644
index 18542d66a95fd7c93b0899072e80b7a2817e8901..0000000000000000000000000000000000000000
--- a/conversations/conv_027409.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration_frames": 66076,
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-      "utterance_id": "4800-38660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-38660.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.958460556459588,
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-      "utterance_id": "6388-64974",
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-      "real_speaker_id": "6388",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "6388-64974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6388-64974.flac |",
-      "real_speaker_id": "6388",
-      "position_frames": 93628
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "speaker_id": "6388"
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-      "event_class": "cough",
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-      "duration": 1.32,
-      "start_time": 20.76178223466826,
-      "speaker_id": "4800"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027413.json b/conversations/conv_027413.json
deleted file mode 100644
index 56009e189236447f98687688dfca9015ca8c9da6..0000000000000000000000000000000000000000
--- a/conversations/conv_027413.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "44-207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-207.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.4146624714595,
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-      "overlap": false,
-      "utterance_id": "3513-163607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-163607.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "1025-92814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-92814.flac |",
-      "real_speaker_id": "1025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.758215504054853,
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-      "overlap": false,
-      "utterance_id": "44-201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.043797434444535,
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-      "utterance_id": "3513-163607",
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-      "real_speaker_id": "3513",
-      "position_frames": 76416
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-207.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 67143
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Running_water",
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-      "speaker_id": "1025"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027425.json b/conversations/conv_027425.json
deleted file mode 100644
index 63d1f4ea38acfdad72b1d1e068d02df458467622..0000000000000000000000000000000000000000
--- a/conversations/conv_027425.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.795581446678014,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6927-87732.flac |",
-      "real_speaker_id": "6927",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6927-86043.flac |",
-      "real_speaker_id": "6927",
-      "position_frames": 0
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-      "real_speaker_id": "8346",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-187006.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244445.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_027429.json b/conversations/conv_027429.json
deleted file mode 100644
index 9ee09b254307978c0c4441ed7a2fb9b13689f761..0000000000000000000000000000000000000000
--- a/conversations/conv_027429.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4063-186231.flac |",
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-      "real_speaker_id": "4156",
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-      "real_speaker_id": "4156",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
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-    {
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_027433.json b/conversations/conv_027433.json
deleted file mode 100644
index c2e8a90e402702477c516f40bd2a9111af9de13a..0000000000000000000000000000000000000000
--- a/conversations/conv_027433.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5480-41798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41798.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6673-72311",
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-      "event_class": "cough",
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-      "duration": 1.1442470049558209,
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-      "speaker_id": "6673"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5480/cough/0048.wav",
-      "duration": 1.24,
-      "start_time": 20.611824899951113,
-      "speaker_id": "5480"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027438.json b/conversations/conv_027438.json
deleted file mode 100644
index 392484a70b8406b14b32f2cfcc4d811e5fc2ab7c..0000000000000000000000000000000000000000
--- a/conversations/conv_027438.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.976544015277668,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.232660933707055,
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-      "duration_frames": 67722,
-      "overlap": false,
-      "utterance_id": "5746-48362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.531750045462635,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3848-28169.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.386800387964456,
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-      "duration": 4.907588509684936,
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-      "utterance_id": "6488-66121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66121.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.340103827217607,
-      "end_time": 22.658777866497527,
-      "duration": 6.3186740392799186,
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-      "duration_frames": 101098,
-      "overlap": false,
-      "utterance_id": "5746-48362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 67722
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.54431107049654,
-      "end_time": 27.226633580708523,
-      "duration": 3.6823225102119803,
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-      "duration_frames": 58917,
-      "overlap": false,
-      "utterance_id": "6488-66120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66120.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.471477298795758,
-      "end_time": 31.976544015277668,
-      "duration": 4.505066716481908,
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-      "duration_frames": 72081,
-      "overlap": false,
-      "utterance_id": "5746-48362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 168820
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 12.769254007573823,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.475346592908555,
-      "start_time": 20.418310358156518
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_027444.json b/conversations/conv_027444.json
deleted file mode 100644
index 9ed8a40fbf5a96fe5329839d84c8d6e3d474a546..0000000000000000000000000000000000000000
--- a/conversations/conv_027444.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.13089108446958,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8470-279797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.111211667970721,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.25867753322113,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286666.flac |",
-      "real_speaker_id": "8470",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
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-      "utterance_id": "8470-286666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286666.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 93667
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8242-279764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279764.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.80427754457903,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 69960
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 20.159979832875717,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8470/cough/0112.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8242/laugh/0035.wav",
-      "duration": 1.3439083933905167,
-      "start_time": 29.051435063104368,
-      "speaker_id": "8242"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027448.json b/conversations/conv_027448.json
deleted file mode 100644
index 1a8f4009af37cd0e42b96529ce44e3a1cfa9fe59..0000000000000000000000000000000000000000
--- a/conversations/conv_027448.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
-      "position_frames": 0
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-    {
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-      "start_time": 7.240008612840546,
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-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 102466
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8531",
-      "position_frames": 206524
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4839-15307",
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-      "real_speaker_id": "4839",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027452.json b/conversations/conv_027452.json
deleted file mode 100644
index a62838e17503bc3d66f7ec65b6382bcfdfcb1911..0000000000000000000000000000000000000000
--- a/conversations/conv_027452.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": "596"
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\ No newline at end of file
diff --git a/conversations/conv_027453.json b/conversations/conv_027453.json
deleted file mode 100644
index 504b76b20242ddffa512a1fd5e49be06460c0995..0000000000000000000000000000000000000000
--- a/conversations/conv_027453.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.25622656448418,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8592-285135.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8592-285135.flac |",
-      "real_speaker_id": "8592",
-      "position_frames": 93365
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123709.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.272931939273715,
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-      "utterance_id": "8592-285135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8592-285135.flac |",
-      "real_speaker_id": "8592",
-      "position_frames": 147782
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123709.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_027464.json b/conversations/conv_027464.json
deleted file mode 100644
index f8362c11a3878c5c61c1dbee858d15c8648b7736..0000000000000000000000000000000000000000
--- a/conversations/conv_027464.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "3172",
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-      "real_speaker_id": "2007",
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\ No newline at end of file
diff --git a/conversations/conv_027468.json b/conversations/conv_027468.json
deleted file mode 100644
index d17ebf7774592d176224abb263345a9e053ba5ec..0000000000000000000000000000000000000000
--- a/conversations/conv_027468.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-12761.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_027472.json b/conversations/conv_027472.json
deleted file mode 100644
index 3f8e4b52f32658baac33f0738da737b560b00de3..0000000000000000000000000000000000000000
--- a/conversations/conv_027472.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-8681.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027479.json b/conversations/conv_027479.json
deleted file mode 100644
index a37dd498a695384ef246d5e1ca467d38e0e73fb9..0000000000000000000000000000000000000000
--- a/conversations/conv_027479.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "7826-271808",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-271808.flac |",
-      "real_speaker_id": "7826",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-148920.flac |",
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-      "speaker_id": 2,
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-      "real_speaker_id": "7826",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-69911.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 84491
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_027480.json b/conversations/conv_027480.json
deleted file mode 100644
index f089fdce335d3cc659eebfdbcecbec385549e90e..0000000000000000000000000000000000000000
--- a/conversations/conv_027480.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-693.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
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-      "real_speaker_id": "1685",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 99578
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-    {
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-      "real_speaker_id": "1685",
-      "position_frames": 0
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027487.json b/conversations/conv_027487.json
deleted file mode 100644
index 1283f4e7c32c2ceed2274b84eee8260c744ab5c8..0000000000000000000000000000000000000000
--- a/conversations/conv_027487.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.508618051148122,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140047.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184448.flac |",
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-      "real_speaker_id": "3289",
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027490.json b/conversations/conv_027490.json
deleted file mode 100644
index 0b9a32eb38123ccbb5d89a2fab5aeb99a348b5d3..0000000000000000000000000000000000000000
--- a/conversations/conv_027490.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "899",
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-      "real_speaker_id": "951",
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-      "start_time": 15.588181348475644,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126233.flac |",
-      "real_speaker_id": "899",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1970-10594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-10594.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.85633380203357,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-138582.flac |",
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-    {
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-      "duration": 1.66,
-      "start_time": 30.34,
-      "speaker_id": "951"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027491.json b/conversations/conv_027491.json
deleted file mode 100644
index b6662918cad731956799b2d4a2043aa2c18e7585..0000000000000000000000000000000000000000
--- a/conversations/conv_027491.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
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-      "overlap": false,
-      "utterance_id": "5060-15562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.904498563214243,
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-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 90562
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.88428064597211,
-      "end_time": 27.8776019478047,
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-      "utterance_id": "5060-15562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 67883
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.0687462949707,
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-      "duration": 3.931253705029299,
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-      "utterance_id": "1977-133046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-133046.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-      "speaker_id": "1977"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027496.json b/conversations/conv_027496.json
deleted file mode 100644
index 22f18d517d186e8cbc6283fa2478addc0d657176..0000000000000000000000000000000000000000
--- a/conversations/conv_027496.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-11591.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64095.flac |",
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-      "real_speaker_id": "7608",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64095.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 77213
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64100.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.438677743542,
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-      "overlap": false,
-      "utterance_id": "7608-115034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 75610
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64095.flac |",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "start_time": 30.08948501509486,
-      "speaker_id": "5894"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027501.json b/conversations/conv_027501.json
deleted file mode 100644
index 88c5c970e97fe23d9f22dade331c4629c828b403..0000000000000000000000000000000000000000
--- a/conversations/conv_027501.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-41167.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
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-      "utterance_id": "8316-279798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1544-140055",
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-      "real_speaker_id": "1544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2971-4275",
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-      "real_speaker_id": "2971",
-      "position_frames": 117143
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027516.json b/conversations/conv_027516.json
deleted file mode 100644
index 7af4c7e18183b7deb243683abc43fc9bc21ce48e..0000000000000000000000000000000000000000
--- a/conversations/conv_027516.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "8222-274380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274380.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2496",
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-      "real_speaker_id": "7597",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274380.flac |",
-      "real_speaker_id": "8222",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101859.flac |",
-      "real_speaker_id": "7597",
-      "position_frames": 83107
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.76066554594642,
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-      "duration": 3.23933445405358,
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-      "utterance_id": "7597-101858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101858.flac |",
-      "real_speaker_id": "7597",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7597/cough/0004.wav",
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-      "speaker_id": "7597"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027517.json b/conversations/conv_027517.json
deleted file mode 100644
index 58a9d5497956e65a3a1421e453a6a3193a3ac834..0000000000000000000000000000000000000000
--- a/conversations/conv_027517.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.811298119846263,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5604-26987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.962363099426989,
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-      "utterance_id": "1708-142417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142417.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.653118799421145,
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-      "utterance_id": "5604-26982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26982.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.583015061636242,
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-      "utterance_id": "1708-142415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142415.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.35485142630368,
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-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.989133737525652,
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-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027521.json b/conversations/conv_027521.json
deleted file mode 100644
index 607ffa5f879bc2c899110768b51172d89a3065a0..0000000000000000000000000000000000000000
--- a/conversations/conv_027521.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1182-134316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134316.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-133396.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
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-      "real_speaker_id": "6978",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1112-128136.flac |",
-      "real_speaker_id": "1112",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "position_frames": 98368
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\ No newline at end of file
diff --git a/conversations/conv_027537.json b/conversations/conv_027537.json
deleted file mode 100644
index b0ef80652e660f8d0370162aa3f66559da1f0e1f..0000000000000000000000000000000000000000
--- a/conversations/conv_027537.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "202-130622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93182.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
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-    {
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-      "utterance_id": "202-122857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-122857.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93182.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 72099
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
-      "real_speaker_id": "202",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-122857.flac |",
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-      "position_frames": 108610
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_027540.json b/conversations/conv_027540.json
deleted file mode 100644
index bbaa96241f1a421f86ef69f789e5d264364736a2..0000000000000000000000000000000000000000
--- a/conversations/conv_027540.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5012-31089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31089.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5012-31097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31097.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 96148
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.38585412298383,
-      "end_time": 25.392780215018657,
-      "duration": 4.006926092034827,
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-      "overlap": false,
-      "utterance_id": "5012-31097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31097.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 70640
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.72872257431152,
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-      "duration": 4.184099476948241,
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-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 183058
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.393492088310133,
-      "end_time": 32.0,
-      "duration": 1.6065079116898673,
-      "start_frame": 486295,
-      "duration_frames": 25704,
-      "overlap": false,
-      "utterance_id": "5012-31089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31089.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 62666
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5012/laugh/0076.wav",
-      "duration": 1.32,
-      "start_time": 3.9837512040518432,
-      "speaker_id": "5012"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5012/cough/0009.wav",
-      "duration": 1.071066888524397,
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-      "speaker_id": "5012"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5012/cough/0002.wav",
-      "duration": 0.45952622562849954,
-      "start_time": 20.746749905017353,
-      "speaker_id": "5012"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/283/laugh/0044.wav",
-      "duration": 1.16,
-      "start_time": 24.51060408033562,
-      "speaker_id": "283"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/283/cough/0041.wav",
-      "duration": 0.31603498833038557,
-      "start_time": 30.040277575954445,
-      "speaker_id": "283"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027541.json b/conversations/conv_027541.json
deleted file mode 100644
index 417b228187266e5e8d466af5d9e123f95c161389..0000000000000000000000000000000000000000
--- a/conversations/conv_027541.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.873317010968052,
-      "duration": 6.873317010968052,
-      "start_frame": 0,
-      "duration_frames": 109973,
-      "overlap": false,
-      "utterance_id": "774-127930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.258799676921722,
-      "end_time": 13.309590822874405,
-      "duration": 6.050791145952682,
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-      "duration_frames": 96812,
-      "overlap": false,
-      "utterance_id": "3645-77173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-77173.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.01379917346524,
-      "end_time": 18.744674831250023,
-      "duration": 4.730875657784785,
-      "start_frame": 224220,
-      "duration_frames": 75694,
-      "overlap": false,
-      "utterance_id": "8753-297969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297969.flac |",
-      "real_speaker_id": "8753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.674497069121553,
-      "end_time": 26.293616223410666,
-      "duration": 6.619119154289111,
-      "start_frame": 314791,
-      "duration_frames": 105905,
-      "overlap": false,
-      "utterance_id": "774-127930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 109973
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.698259532261872,
-      "end_time": 32.0,
-      "duration": 5.301740467738128,
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-      "overlap": false,
-      "utterance_id": "3645-39840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-39840.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 15.257891863713231,
-      "start_time": 12.840961649117494
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.7520002973652877,
-      "start_time": 3.2075250321906794
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3645/laugh/0094.wav",
-      "duration": 1.12,
-      "start_time": 28.873100874595444,
-      "speaker_id": "3645"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027556.json b/conversations/conv_027556.json
deleted file mode 100644
index 1fe82da13e6f6958403cdcf5a4560a7939193b48..0000000000000000000000000000000000000000
--- a/conversations/conv_027556.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.656302557959277,
-      "duration": 5.656302557959277,
-      "start_frame": 0,
-      "duration_frames": 90500,
-      "overlap": false,
-      "utterance_id": "4216-10164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10164.flac |",
-      "real_speaker_id": "4216",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.228429885474493,
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-      "overlap": true,
-      "utterance_id": "1699-141159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141159.flac |",
-      "real_speaker_id": "1699",
-      "position_frames": 0
-    },
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-      "overlap": true,
-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.875415170445265,
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-      "duration": 6.875074579159032,
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-      "duration_frames": 110001,
-      "overlap": false,
-      "utterance_id": "4216-10192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
-      "real_speaker_id": "4216",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.808257826392914,
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-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 92275
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.82205506248325,
-      "end_time": 32.0,
-      "duration": 1.1779449375167488,
-      "start_frame": 493152,
-      "duration_frames": 18847,
-      "overlap": false,
-      "utterance_id": "1699-141159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141159.flac |",
-      "real_speaker_id": "1699",
-      "position_frames": 56742
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 4.132741082279391
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4216/laugh/0029.wav",
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-      "start_time": 5.875659678867898,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4216/cough/0091.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1699/laugh/0140.wav",
-      "duration": 1.24,
-      "start_time": 9.93052626138912,
-      "speaker_id": "1699"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1699/cough/0085.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "1699"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027560.json b/conversations/conv_027560.json
deleted file mode 100644
index cb694bcf5f942ec77d0be2deca8c4bbbd5c6a830..0000000000000000000000000000000000000000
--- a/conversations/conv_027560.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.0049666789038,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.330331960764476,
-      "duration": 6.330331960764476,
-      "start_frame": 0,
-      "duration_frames": 101285,
-      "overlap": false,
-      "utterance_id": "6145-54683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54683.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.707791053401429,
-      "end_time": 11.80166301239553,
-      "duration": 5.0938719589941,
-      "start_frame": 107324,
-      "duration_frames": 81501,
-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.704392216184592,
-      "end_time": 18.197323549041705,
-      "duration": 5.492931332857113,
-      "start_frame": 203270,
-      "duration_frames": 87886,
-      "overlap": false,
-      "utterance_id": "6145-54685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54685.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.776820093918694,
-      "end_time": 24.307490108538236,
-      "duration": 5.530670014619541,
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-      "duration_frames": 88490,
-      "overlap": false,
-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.953118095308596,
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-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 81501
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "6145-54685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54685.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 87886
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6145/laugh/0008.wav",
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-      "start_time": 1.0173064033970427,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/laugh/0117.wav",
-      "duration": 1.4,
-      "start_time": 5.081428125236748,
-      "speaker_id": "2676"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6145/cough/0104.wav",
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-      "start_time": 18.199000498899277,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6145/cough/0133.wav",
-      "duration": 1.28,
-      "start_time": 30.482894266160194,
-      "speaker_id": "6145"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027576.json b/conversations/conv_027576.json
deleted file mode 100644
index d747530929613f4874f5ff47f7277bb201c61be3..0000000000000000000000000000000000000000
--- a/conversations/conv_027576.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.595564023080538,
-      "duration": 5.595564023080538,
-      "start_frame": 0,
-      "duration_frames": 89529,
-      "overlap": false,
-      "utterance_id": "8063-274115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274115.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.791724137520262,
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-      "duration": 4.3856836259162435,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274117.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.52157717927025,
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-      "utterance_id": "3679-159363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
-      "real_speaker_id": "3679",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3679/laugh/0034.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027583.json b/conversations/conv_027583.json
deleted file mode 100644
index b88cc336e2a3df4966bdbfad452bb48c306947ef..0000000000000000000000000000000000000000
--- a/conversations/conv_027583.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "8465-246942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246942.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.254076883438244,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19219.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_027584.json b/conversations/conv_027584.json
deleted file mode 100644
index 4740ce1e13b7414fd4e31ea5c3aee8ce57cfac34..0000000000000000000000000000000000000000
--- a/conversations/conv_027584.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-124547.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177740.flac |",
-      "real_speaker_id": "2607",
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-    },
-    {
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-      "utterance_id": "3285-121400",
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-      "real_speaker_id": "3285",
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-      "speaker_id": 2,
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-      "real_speaker_id": "2607",
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-      "overlap": false,
-      "utterance_id": "1100-135264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-135264.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 102579
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
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-      "event_class": "cough",
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-      "start_time": 30.52,
-      "speaker_id": "1100"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027592.json b/conversations/conv_027592.json
deleted file mode 100644
index 4ef60a8c437de1bfed7812ff5161baed5169f30f..0000000000000000000000000000000000000000
--- a/conversations/conv_027592.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34506.flac |",
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-      "position_frames": 0
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3488/laugh/0036.wav",
-      "duration": 1.16,
-      "start_time": 21.90638993998154,
-      "speaker_id": "3488"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027595.json b/conversations/conv_027595.json
deleted file mode 100644
index 7b59f212b563f4c28d9e4492ea96cc7d6457b521..0000000000000000000000000000000000000000
--- a/conversations/conv_027595.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.7663106824696655,
-      "duration": 4.7663106824696655,
-      "start_frame": 0,
-      "duration_frames": 76260,
-      "overlap": false,
-      "utterance_id": "1182-134981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134981.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.1209092153971865,
-      "end_time": 10.89077796192466,
-      "duration": 5.769868746527474,
-      "start_frame": 81934,
-      "duration_frames": 92317,
-      "overlap": true,
-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.97754540228678,
-      "end_time": 17.084777448780855,
-      "duration": 5.107232046494075,
-      "start_frame": 191640,
-      "duration_frames": 81715,
-      "overlap": false,
-      "utterance_id": "1182-134316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134316.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.95792567410496,
-      "end_time": 22.756053476650298,
-      "duration": 4.798127802545339,
-      "start_frame": 287326,
-      "duration_frames": 76770,
-      "overlap": false,
-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 92317
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.918757639633473,
-      "end_time": 29.034905650429753,
-      "duration": 6.116148010796279,
-      "start_frame": 366700,
-      "duration_frames": 97858,
-      "overlap": false,
-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 169087
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.646094728106558,
-      "end_time": 32.0,
-      "duration": 2.353905271893442,
-      "start_frame": 474337,
-      "duration_frames": 37662,
-      "overlap": false,
-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 266945
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
-      "duration": 2.236848072562358,
-      "start_time": 9.585865543723356
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8028/laugh/0114.wav",
-      "duration": 1.68,
-      "start_time": 3.392507543835887,
-      "speaker_id": "8028"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8028/laugh/0034.wav",
-      "duration": 1.08,
-      "start_time": 28.49390763535196,
-      "speaker_id": "8028"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027599.json b/conversations/conv_027599.json
deleted file mode 100644
index e10e3c12de3fcb6f94d2862f020b119f6380db5e..0000000000000000000000000000000000000000
--- a/conversations/conv_027599.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.31397049177662,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8634334135492505,
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-      "duration_frames": 61814,
-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.215926905400862,
-      "end_time": 8.39262028278813,
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-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.49248338383245,
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-      "duration_frames": 97738,
-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 61814
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.077722515976358,
-      "end_time": 21.6038235333006,
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-      "overlap": false,
-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.083391011320156,
-      "end_time": 28.158234323370074,
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-      "duration_frames": 97197,
-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 159552
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.805361001595056,
-      "end_time": 31.31397049177662,
-      "duration": 2.5086094901815628,
-      "start_frame": 460885,
-      "duration_frames": 40137,
-      "overlap": true,
-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 88417
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/laugh/0012.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8168/laugh/0061.wav",
-      "duration": 1.407961868434734,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/cough/0092.wav",
-      "duration": 1.1612482163403783,
-      "start_time": 13.701706876592723,
-      "speaker_id": "2676"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027603.json b/conversations/conv_027603.json
deleted file mode 100644
index f2e74640c366a9d75639f26f8f1f027753ce33aa..0000000000000000000000000000000000000000
--- a/conversations/conv_027603.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.2166528973580344,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6877-79973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6877-79973.flac |",
-      "real_speaker_id": "6877",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.5324191059161265,
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-      "overlap": false,
-      "utterance_id": "1455-134435",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1455-134435.flac |",
-      "real_speaker_id": "1455",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6035-80463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-80463.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6877-77361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6877-77361.flac |",
-      "real_speaker_id": "6877",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6035-74040",
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-      "real_speaker_id": "6035",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.93118978566951,
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-      "duration_frames": 50645,
-      "overlap": false,
-      "utterance_id": "1455-134435",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1455-134435.flac |",
-      "real_speaker_id": "1455",
-      "position_frames": 61434
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 2.242666805655439,
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-      "utterance_id": "6877-79973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6877-79973.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6877/laugh/0017.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.1,
-      "start_time": 13.93532032754173,
-      "speaker_id": "6035"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027604.json b/conversations/conv_027604.json
deleted file mode 100644
index 68f2aebee6d5557a90ba1580d8849442579bcdce..0000000000000000000000000000000000000000
--- a/conversations/conv_027604.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "4806-26894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26894.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
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-    {
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-      "speaker_id": "4806"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4806/laugh/0066.wav",
-      "duration": 0.9394639937296799,
-      "start_time": 17.205591948563796,
-      "speaker_id": "4806"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2299/laugh/0114.wav",
-      "duration": 0.7608641343817789,
-      "start_time": 31.23913586561822,
-      "speaker_id": "2299"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2299/cough/0047.wav",
-      "duration": 0.88,
-      "start_time": 28.287949192165968,
-      "speaker_id": "2299"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027608.json b/conversations/conv_027608.json
deleted file mode 100644
index 3b009dad054aa89eaf541a66253479dcf52c5920..0000000000000000000000000000000000000000
--- a/conversations/conv_027608.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.098056350064489,
-      "duration": 5.098056350064489,
-      "start_frame": 0,
-      "duration_frames": 81568,
-      "overlap": false,
-      "utterance_id": "2204-131732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
-      "real_speaker_id": "2204",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.639803939229858,
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-      "duration": 5.448137131264735,
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-      "utterance_id": "2374-155651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.571629789240076,
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-      "duration": 3.1149981853648483,
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-      "overlap": false,
-      "utterance_id": "3370-724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-724.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.999581974400204,
-      "end_time": 21.88715150410269,
-      "duration": 6.887569529702487,
-      "start_frame": 239993,
-      "duration_frames": 110201,
-      "overlap": false,
-      "utterance_id": "3370-724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-724.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 49839
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.315096260311293,
-      "end_time": 27.432029384321865,
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-      "utterance_id": "2374-160960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-160960.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.846325227293274,
-      "end_time": 32.0,
-      "duration": 4.153674772706726,
-      "start_frame": 445541,
-      "duration_frames": 66458,
-      "overlap": false,
-      "utterance_id": "2374-155651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 87170
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "start_time": 2.5346206402295532
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-      "start_time": 28.53034589452378
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_027612.json b/conversations/conv_027612.json
deleted file mode 100644
index eaea7e1fb38407f3581e492b111808164efd3b9a..0000000000000000000000000000000000000000
--- a/conversations/conv_027612.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102420.flac |",
-      "real_speaker_id": "7511",
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 66665
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7511-102419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102419.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.889641322693446,
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-      "overlap": false,
-      "utterance_id": "6269-66184",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66184.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 144806
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/60/laugh/0008.wav",
-      "duration": 0.6694468593211557,
-      "start_time": 9.437139524595857,
-      "speaker_id": "60"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027615.json b/conversations/conv_027615.json
deleted file mode 100644
index 8de83f05a796a7bb26d8871bcf8c2bf9c64b0168..0000000000000000000000000000000000000000
--- a/conversations/conv_027615.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "614-6500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
-      "real_speaker_id": "816",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "614-161065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-161065.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.02134723350263,
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-      "utterance_id": "3125-163698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-163698.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
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-      "position_frames": 85038
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_027624.json b/conversations/conv_027624.json
deleted file mode 100644
index 43722efdd1abef54e2a2b7733aad76feedf9270f..0000000000000000000000000000000000000000
--- a/conversations/conv_027624.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.25,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "8005-113328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113328.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8337-284523",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0006",
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-      "speaker_id": "8337"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8005/laugh/0041.wav",
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-      "start_time": 21.37480907344404,
-      "speaker_id": "8005"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8005/laugh/0044.wav",
-      "duration": 1.02,
-      "start_time": 24.461225858974156,
-      "speaker_id": "8005"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8005/cough/0089.wav",
-      "duration": 0.8155443438105525,
-      "start_time": 30.72694548109671,
-      "speaker_id": "8005"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/340/laugh/0054.wav",
-      "duration": 0.9577246480835147,
-      "start_time": 31.042275351916487,
-      "speaker_id": "340"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027628.json b/conversations/conv_027628.json
deleted file mode 100644
index 7f80c61f082024d4be781eb141a4029be976e78f..0000000000000000000000000000000000000000
--- a/conversations/conv_027628.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.032125823045294,
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-      "overlap": false,
-      "utterance_id": "8803-296082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296082.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.805015157312705,
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-      "utterance_id": "5672-88363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88363.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.787616428537412,
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-      "overlap": false,
-      "utterance_id": "705-157945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-157945.flac |",
-      "real_speaker_id": "705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.915470688833906,
-      "end_time": 22.706824598257416,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-157945.flac |",
-      "real_speaker_id": "705",
-      "position_frames": 91800
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.89467998974318,
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-      "utterance_id": "5672-88363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-88363.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 83644
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.745044569011853,
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-      "duration": 4.254955430988147,
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-      "utterance_id": "5672-75791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5672-75791.flac |",
-      "real_speaker_id": "5672",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.1525442814999511,
-      "start_time": 0,
-      "speaker_id": "8803"
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-      "event_class": "cough",
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-      "duration": 0.47412164831753023,
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-      "speaker_id": "5672"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027632.json b/conversations/conv_027632.json
deleted file mode 100644
index ff16d1d0633ad246f3f1a2cab408fe86cb227931..0000000000000000000000000000000000000000
--- a/conversations/conv_027632.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.718759123845935,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-19665.flac |",
-      "real_speaker_id": "4586",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-55211.flac |",
-      "real_speaker_id": "6000",
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-      "utterance_id": "3793-4707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-4707.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 96150,
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-      "utterance_id": "6000-55211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-55211.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 79211
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.550584123429957,
-      "end_time": 26.433509933902524,
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-      "utterance_id": "3793-10683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-10683.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4586-19665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-19665.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 68249
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "paralinguistic_events": [
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-    {
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-      "start_time": 26.712254883459135,
-      "speaker_id": "3793"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027642.json b/conversations/conv_027642.json
deleted file mode 100644
index 0a3feb4cf284035a9304569501d29bf09e609638..0000000000000000000000000000000000000000
--- a/conversations/conv_027642.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50778.flac |",
-      "real_speaker_id": "5731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.704019348901951,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3820.flac |",
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-      "position_frames": 0
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3835.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.30911637022003,
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-      "overlap": false,
-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.646807093775166,
-      "end_time": 30.187010556471968,
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-      "utterance_id": "5731-50778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50778.flac |",
-      "real_speaker_id": "5731",
-      "position_frames": 62209
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.3924362505454,
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-      "duration": 1.6075637494545987,
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-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 93411
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_027645.json b/conversations/conv_027645.json
deleted file mode 100644
index f39e85111ca10289e57cdef5888f411e1908c881..0000000000000000000000000000000000000000
--- a/conversations/conv_027645.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "770-43321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-43321.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.501784133710198,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "770-131704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-131704.flac |",
-      "real_speaker_id": "770",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0004",
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-    {
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/770/laugh/0019.wav",
-      "duration": 1.1794499157145983,
-      "start_time": 5.167924468141486,
-      "speaker_id": "770"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027649.json b/conversations/conv_027649.json
deleted file mode 100644
index fd0bcdd0a08ccc9878bb0f0b17da819350b01cb2..0000000000000000000000000000000000000000
--- a/conversations/conv_027649.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.977037292447667,
-      "duration": 3.977037292447667,
-      "start_frame": 0,
-      "duration_frames": 63632,
-      "overlap": false,
-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.015006584205649,
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-      "duration": 6.183060586566091,
-      "start_frame": 80240,
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-      "overlap": false,
-      "utterance_id": "542-125351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125351.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.457630263342473,
-      "end_time": 17.475139549320335,
-      "duration": 6.017509285977862,
-      "start_frame": 183322,
-      "duration_frames": 96280,
-      "overlap": false,
-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 63632
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.74936251255796,
-      "end_time": 23.470675383143366,
-      "duration": 4.721312870585406,
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-      "overlap": false,
-      "utterance_id": "542-125351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125351.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 98928
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.551849857157226,
-      "end_time": 28.738898926471,
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-      "overlap": false,
-      "utterance_id": "5445-21280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21280.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.11458627830729,
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-      "duration": 2.8854137216927107,
-      "start_frame": 465833,
-      "duration_frames": 46166,
-      "overlap": false,
-      "utterance_id": "542-125348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125348.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 14.988447578563592,
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5445/cough/0030.wav",
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-      "start_time": 12.514045892468985,
-      "speaker_id": "5445"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5445/laugh/0049.wav",
-      "duration": 0.8058232177828515,
-      "start_time": 23.741964564883062,
-      "speaker_id": "5445"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/542/laugh/0056.wav",
-      "duration": 1.0,
-      "start_time": 29.30562380506397,
-      "speaker_id": "542"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027653.json b/conversations/conv_027653.json
deleted file mode 100644
index 359dcb7cece4285c682dc0cf0260dfc3e124131f..0000000000000000000000000000000000000000
--- a/conversations/conv_027653.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7357-94126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.272523961409537,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-119637.flac |",
-      "real_speaker_id": "3483",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.200369176615961,
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-      "utterance_id": "3483-119637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-119637.flac |",
-      "real_speaker_id": "3483",
-      "position_frames": 79962
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.17561156599623,
-      "end_time": 26.05856041735983,
-      "duration": 6.882948851363597,
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-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.43440997236359,
-      "end_time": 30.597434500098682,
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-      "overlap": false,
-      "utterance_id": "6391-65553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
-      "real_speaker_id": "6391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.69534928923071,
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-      "duration": 0.30465071076929107,
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-      "utterance_id": "7357-94127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94127.flac |",
-      "real_speaker_id": "7357",
-      "position_frames": 110127
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
-      "duration": 0.30428571428571427,
-      "start_time": 9.962633472141478
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-      "start_time": 16.313640771955544
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3483/laugh/0009.wav",
-      "duration": 1.277783830751159,
-      "start_time": 18.54965945120331,
-      "speaker_id": "3483"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027654.json b/conversations/conv_027654.json
deleted file mode 100644
index 4e9baabc3925734fb232f736bdf1576455d40478..0000000000000000000000000000000000000000
--- a/conversations/conv_027654.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6590-64283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64283.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.8537859053853865,
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-      "utterance_id": "6590-64282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64282.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.90376086220683,
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-      "utterance_id": "7796-269904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7796-269904.flac |",
-      "real_speaker_id": "7796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.769488900139958,
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-      "duration": 4.524341672120819,
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-      "duration_frames": 72389,
-      "overlap": false,
-      "utterance_id": "6590-64285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64285.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.606680058576167,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.28481877518474,
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-      "duration": 5.715181224815261,
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-      "utterance_id": "6590-64285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64285.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 72389
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1187/laugh/0058.wav",
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-      "speaker_id": "1187"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027665.json b/conversations/conv_027665.json
deleted file mode 100644
index 84aec233ae600ec850b93516f80e85e09ce04807..0000000000000000000000000000000000000000
--- a/conversations/conv_027665.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 6.916756284962647,
-      "start_frame": 0,
-      "duration_frames": 110668,
-      "overlap": false,
-      "utterance_id": "4595-45217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4595-45217.flac |",
-      "real_speaker_id": "4595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 8.010678107348808,
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-      "overlap": false,
-      "utterance_id": "1028-133393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133393.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.820250861197238,
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-      "overlap": false,
-      "utterance_id": "2427-154671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154671.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.570629559483592,
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-      "overlap": false,
-      "utterance_id": "1028-133393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133393.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 100501
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.77426786766716,
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-      "utterance_id": "4595-45204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4595-45204.flac |",
-      "real_speaker_id": "4595",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4595/laugh/0040.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4595/cough/0097.wav",
-      "duration": 1.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_027668.json b/conversations/conv_027668.json
deleted file mode 100644
index 10d55bd3bac1a6fcbf563634095141ce3244a11b..0000000000000000000000000000000000000000
--- a/conversations/conv_027668.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.65552447500736,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 0
-    },
-    {
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\ No newline at end of file
diff --git a/conversations/conv_027669.json b/conversations/conv_027669.json
deleted file mode 100644
index e77ee412232a5009e95eb17435b87efd886e2469..0000000000000000000000000000000000000000
--- a/conversations/conv_027669.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_027673.json b/conversations/conv_027673.json
deleted file mode 100644
index 9e92653af05f34b8a8bf60a45907d6abf373eb83..0000000000000000000000000000000000000000
--- a/conversations/conv_027673.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_027678.json b/conversations/conv_027678.json
deleted file mode 100644
index 34d8531dfdf7d16059d6fb46c07ad53da0a4d069..0000000000000000000000000000000000000000
--- a/conversations/conv_027678.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/895-136366.flac |",
-      "real_speaker_id": "895",
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\ No newline at end of file
diff --git a/conversations/conv_027686.json b/conversations/conv_027686.json
deleted file mode 100644
index 7653c615dbca75fdb594d6a2965cf04168d09b4d..0000000000000000000000000000000000000000
--- a/conversations/conv_027686.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 5.397458389909994,
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-      "overlap": false,
-      "utterance_id": "5933-91994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-91994.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 5.638146552434215,
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-      "overlap": false,
-      "utterance_id": "7657-104717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
-      "real_speaker_id": "7657",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 9.068127744615484,
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-      "overlap": false,
-      "utterance_id": "8506-287660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-287660.flac |",
-      "real_speaker_id": "8506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.363663923202843,
-      "end_time": 22.44080824604646,
-      "duration": 6.0771443228436155,
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-      "duration_frames": 97234,
-      "overlap": false,
-      "utterance_id": "5933-91994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-91994.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 86359
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.32878516062373,
-      "end_time": 26.724122397248415,
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-      "utterance_id": "8506-287660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-287660.flac |",
-      "real_speaker_id": "8506",
-      "position_frames": 111253
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.29694990836193,
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-      "duration": 4.703050091638069,
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-      "utterance_id": "5933-91994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-91994.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 183593
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 26.907974760445647,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 29.033045209554437,
-      "speaker_id": "5933"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027687.json b/conversations/conv_027687.json
deleted file mode 100644
index c00235ac435992543ede817fb0be366749f39805..0000000000000000000000000000000000000000
--- a/conversations/conv_027687.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279233.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 86688
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8075-279233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279233.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 165173
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.731374710182333,
-      "end_time": 32.0,
-      "duration": 3.268625289817667,
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-      "duration_frames": 52298,
-      "overlap": false,
-      "utterance_id": "5622-44586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-44586.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-    {
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-    {
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-      "duration": 1.16,
-      "start_time": 16.366058432665355,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "5622"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027690.json b/conversations/conv_027690.json
deleted file mode 100644
index 7879671e89ab85fdd0d3415143e878f20e1d36e5..0000000000000000000000000000000000000000
--- a/conversations/conv_027690.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "6459-70120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70120.flac |",
-      "real_speaker_id": "6459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.126421126914259,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70120.flac |",
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-      "utterance_id": "1182-134981",
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-      "real_speaker_id": "1182",
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-      "segment_id": "seg0003",
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
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-    {
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-      "speaker_id": 1,
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-      "real_speaker_id": "1182",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 72176
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6459/cough/0017.wav",
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-      "speaker_id": "6459"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027697.json b/conversations/conv_027697.json
deleted file mode 100644
index 2ded6a5152288382fae4e9245737ba98d326542b..0000000000000000000000000000000000000000
--- a/conversations/conv_027697.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1944-159227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1944-159227.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
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-    {
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "1944"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1813/laugh/0009.wav",
-      "duration": 0.98,
-      "start_time": 31.02,
-      "speaker_id": "1813"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027700.json b/conversations/conv_027700.json
deleted file mode 100644
index 9bd76f79265a2d258faeb13713800ab953e2cdad..0000000000000000000000000000000000000000
--- a/conversations/conv_027700.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-37999.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 19.01401092791106,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7294-92934.flac |",
-      "real_speaker_id": "7294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.843274846416065,
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-      "duration": 6.37189715482287,
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-      "duration_frames": 101950,
-      "overlap": true,
-      "utterance_id": "2688-144986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144986.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.68698422528538,
-      "end_time": 32.0,
-      "duration": 2.3130157747146214,
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-      "duration_frames": 37008,
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-      "utterance_id": "7294-86026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7294-86026.flac |",
-      "real_speaker_id": "7294",
-      "position_frames": 103830
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "7294"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027707.json b/conversations/conv_027707.json
deleted file mode 100644
index d8555dcd37d283c2879a97fb24e71fcfc90cc34c..0000000000000000000000000000000000000000
--- a/conversations/conv_027707.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1634-141571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1634-141571.flac |",
-      "real_speaker_id": "1634",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.413018288689054,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-114039.flac |",
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-      "real_speaker_id": "1634",
-      "position_frames": 105339
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-114039.flac |",
-      "real_speaker_id": "7737",
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-      "utterance_id": "1634-141571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1634-141571.flac |",
-      "real_speaker_id": "1634",
-      "position_frames": 169034
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.769243846179073,
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-      "overlap": false,
-      "utterance_id": "1485-139314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-139314.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_4.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1485"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027711.json b/conversations/conv_027711.json
deleted file mode 100644
index 6e1867f2b05c627559385ead1bdb03db1ed1123f..0000000000000000000000000000000000000000
--- a/conversations/conv_027711.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "2989-138028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138028.flac |",
-      "real_speaker_id": "2989",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138028.flac |",
-      "real_speaker_id": "2989",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "2989",
-      "position_frames": 129164
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "774-127930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 76967
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.480103253003485,
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-      "duration": 0.5198967469965154,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138028.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027716.json b/conversations/conv_027716.json
deleted file mode 100644
index ec3564324d6c9f85169a2988f2e00f3e39f8c34b..0000000000000000000000000000000000000000
--- a/conversations/conv_027716.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.929865536993947,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
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-    },
-    {
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-      "segment_id": "seg0002",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
-      "real_speaker_id": "1349",
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-  "background_events": [
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-      "duration": 1.44,
-      "start_time": 4.141525320604142,
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-      "start_time": 21.455870602414052,
-      "speaker_id": "1349"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027720.json b/conversations/conv_027720.json
deleted file mode 100644
index 0400c05e0821a2096cb110e69c25d10d32072180..0000000000000000000000000000000000000000
--- a/conversations/conv_027720.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.469782070250769,
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-      "utterance_id": "4463-16807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-16807.flac |",
-      "real_speaker_id": "4463",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8460628914506545,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "4463-26871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-26871.flac |",
-      "real_speaker_id": "4463",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.460286926595083,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 57798
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.230838377757433,
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-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 117819
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.70343099507892,
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-      "utterance_id": "4463-26871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-26871.flac |",
-      "real_speaker_id": "4463",
-      "position_frames": 93188
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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\ No newline at end of file
diff --git a/conversations/conv_027736.json b/conversations/conv_027736.json
deleted file mode 100644
index 1eafcc96aeb5d8e8b4131bf6168e51050a91129a..0000000000000000000000000000000000000000
--- a/conversations/conv_027736.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.093246605838708,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1536.flac |",
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-      "real_speaker_id": "5448",
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-      "speaker_id": 2,
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-      "real_speaker_id": "3895",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027741.json b/conversations/conv_027741.json
deleted file mode 100644
index ae54b26cbaffd7a30463b969aab0dc0685b9f6fa..0000000000000000000000000000000000000000
--- a/conversations/conv_027741.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-902.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "6281",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_027746.json b/conversations/conv_027746.json
deleted file mode 100644
index f62586a00b023d604b18356e03cd80ffcd99f195..0000000000000000000000000000000000000000
--- a/conversations/conv_027746.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4813-248641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 137022
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "8143-278206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278206.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 54582
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
-      "duration": 23.91834796257067,
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4813/laugh/0039.wav",
-      "duration": 0.6099372651772832,
-      "start_time": 0,
-      "speaker_id": "4813"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4813/cough/0036.wav",
-      "duration": 0.924645670343917,
-      "start_time": 2.4423203862689373,
-      "speaker_id": "4813"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4813/laugh/0080.wav",
-      "duration": 0.6716550027332481,
-      "start_time": 6.348930767967814,
-      "speaker_id": "4813"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4813/cough/0063.wav",
-      "duration": 0.3179252794966208,
-      "start_time": 3.521467983546317,
-      "speaker_id": "4813"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7994/laugh/0060.wav",
-      "duration": 1.76,
-      "start_time": 17.43060427296715,
-      "speaker_id": "7994"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027750.json b/conversations/conv_027750.json
deleted file mode 100644
index b059f87f5de9df52d9bc6e3f105423ae03825c2b..0000000000000000000000000000000000000000
--- a/conversations/conv_027750.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.229690134377376,
-      "duration": 3.229690134377376,
-      "start_frame": 0,
-      "duration_frames": 51675,
-      "overlap": false,
-      "utterance_id": "4278-187018",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-187018.flac |",
-      "real_speaker_id": "4278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8112426645767754,
-      "end_time": 10.205422150003185,
-      "duration": 6.39417948542641,
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-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.458606721549984,
-      "end_time": 15.416033793690703,
-      "duration": 4.957427072140719,
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-      "duration_frames": 79318,
-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 102306
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4278-13269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-13269.flac |",
-      "real_speaker_id": "4278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.80959086752064,
-      "end_time": 26.42096960095515,
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-      "overlap": false,
-      "utterance_id": "7825-258978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7825-258978.flac |",
-      "real_speaker_id": "7825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.736273677102943,
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-      "overlap": false,
-      "utterance_id": "4278-13270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-13270.flac |",
-      "real_speaker_id": "4278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.81921376814412,
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-      "duration": 1.1807862318558797,
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-      "utterance_id": "7825-258978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7825-258978.flac |",
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-      "position_frames": 73782
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4278/cough/0075.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 14.981117063108242,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "7825"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.06,
-      "start_time": 29.350775284574933,
-      "speaker_id": "4278"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7825/laugh/0017.wav",
-      "duration": 1.22,
-      "start_time": 30.78,
-      "speaker_id": "7825"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027757.json b/conversations/conv_027757.json
deleted file mode 100644
index d0b4afd2b32dd66f80076829d8028e2e47ce8f66..0000000000000000000000000000000000000000
--- a/conversations/conv_027757.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.663860818862176,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "911-128684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-128684.flac |",
-      "real_speaker_id": "911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8917287208859763,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112057.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-128684.flac |",
-      "real_speaker_id": "911",
-      "position_frames": 52376
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.481764072468751,
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-      "overlap": false,
-      "utterance_id": "1422-149735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1422-149735.flac |",
-      "real_speaker_id": "1422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.693438523365838,
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-      "duration": 4.579594383348334,
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-      "utterance_id": "1422-146111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1422-146111.flac |",
-      "real_speaker_id": "1422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.974230773644056,
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-      "duration_frames": 75814,
-      "overlap": false,
-      "utterance_id": "911-128684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-128684.flac |",
-      "real_speaker_id": "911",
-      "position_frames": 123289
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.116082848382128,
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-      "duration_frames": 40764,
-      "overlap": true,
-      "utterance_id": "1422-146111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1422-146111.flac |",
-      "real_speaker_id": "1422",
-      "position_frames": 73273
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/911/laugh/0071.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_027761.json b/conversations/conv_027761.json
deleted file mode 100644
index a68dde82e1af8daea7a724c2e9d034dde7029575..0000000000000000000000000000000000000000
--- a/conversations/conv_027761.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5246-5084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.8112015231423,
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-      "utterance_id": "7932-110056",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
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-      "position_frames": 88132
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
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-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.52825815914779,
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-      "utterance_id": "5246-5084",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5246/laugh/0017.wav",
-      "duration": 1.36,
-      "start_time": 5.663506290497063,
-      "speaker_id": "5246"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4019/laugh/0038.wav",
-      "duration": 0.9047812547261619,
-      "start_time": 17.56100224304542,
-      "speaker_id": "4019"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7932/laugh/0071.wav",
-      "duration": 0.5891702022014909,
-      "start_time": 22.04824100840342,
-      "speaker_id": "7932"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027777.json b/conversations/conv_027777.json
deleted file mode 100644
index 717d0f11e143255ef5888c30128f67515cf79992..0000000000000000000000000000000000000000
--- a/conversations/conv_027777.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.306755884100654,
-      "duration": 5.306755884100654,
-      "start_frame": 0,
-      "duration_frames": 84908,
-      "overlap": false,
-      "utterance_id": "128-134883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.3359420005677185,
-      "end_time": 11.82057953472815,
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-      "utterance_id": "4189-115680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4189-115680.flac |",
-      "real_speaker_id": "4189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6127-53038",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-53038.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.423410696493146,
-      "end_time": 24.639423829931253,
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-      "utterance_id": "4189-115680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4189-115680.flac |",
-      "real_speaker_id": "4189",
-      "position_frames": 87754
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.81934399836345,
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-      "utterance_id": "4189-115685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4189-115685.flac |",
-      "real_speaker_id": "4189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.619296702501266,
-      "end_time": 32.0,
-      "duration": 1.3807032974987337,
-      "start_frame": 489908,
-      "duration_frames": 22091,
-      "overlap": false,
-      "utterance_id": "6127-2344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-2344.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/128/laugh/0083.wav",
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-      "speaker_id": "128"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4189/laugh/0092.wav",
-      "duration": 0.94,
-      "start_time": 5.379386919525411,
-      "speaker_id": "4189"
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 19.585189504800987,
-      "speaker_id": "6127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027782.json b/conversations/conv_027782.json
deleted file mode 100644
index 96f3645d1be48570699f3988db6209b34756e6fb..0000000000000000000000000000000000000000
--- a/conversations/conv_027782.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254949.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-22176.flac |",
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-      "overlap": false,
-      "utterance_id": "7926-254949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254949.flac |",
-      "real_speaker_id": "7926",
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-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "3215-5764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5764.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.357337367155914,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3215-5764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5764.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 86473
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
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-    {
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-      "duration": 0.623020522642129,
-      "start_time": 26.329932974204212,
-      "speaker_id": "3215"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027794.json b/conversations/conv_027794.json
deleted file mode 100644
index 10169d002c821b4a7b4523c6d9706c11487e3d56..0000000000000000000000000000000000000000
--- a/conversations/conv_027794.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "6088-34571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34571.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16026.flac |",
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-      "utterance_id": "8664-295007",
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-      "real_speaker_id": "8664",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16026.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 90837
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "8664-175359",
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-      "real_speaker_id": "8664",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "real_speaker_id": "6088",
-      "position_frames": 68084
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_027798.json b/conversations/conv_027798.json
deleted file mode 100644
index cd0583e48b062fc9aeaf1a499d47f0c695ade5d7..0000000000000000000000000000000000000000
--- a/conversations/conv_027798.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1743-142912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142912.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
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-    {
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-      "utterance_id": "7190-90542",
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-      "speaker_id": "7190"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027805.json b/conversations/conv_027805.json
deleted file mode 100644
index 4e7e1f02d261b15c178ea5f7f3934bd484a8b09d..0000000000000000000000000000000000000000
--- a/conversations/conv_027805.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "5933-104482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-104482.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.835124365997013,
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "5933-104482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-104482.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 73203
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "298-126791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126791.flac |",
-      "real_speaker_id": "298",
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-      "speaker_id": 2,
-      "start_time": 22.509101779763483,
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-      "utterance_id": "110-2",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 104965
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.50571886090153,
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-      "duration": 4.494281139098469,
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-      "overlap": false,
-      "utterance_id": "5933-91994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-91994.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "speaker_id": "5933"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027809.json b/conversations/conv_027809.json
deleted file mode 100644
index 672943ed20596ce8003cc09ae83af70d3a36a987..0000000000000000000000000000000000000000
--- a/conversations/conv_027809.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126233.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126232.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.846567682125286,
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-      "utterance_id": "8846-305217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305217.flac |",
-      "real_speaker_id": "8846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126233.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 57693
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-  ],
-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/899/laugh/0119.wav",
-      "duration": 0.7336354208389445,
-      "start_time": 26.699134445089502,
-      "speaker_id": "899"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027812.json b/conversations/conv_027812.json
deleted file mode 100644
index 2aaf4c3f0384fccf1f730e2753f035709a0d2a19..0000000000000000000000000000000000000000
--- a/conversations/conv_027812.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.280590721358813,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "7286-92935",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7286-92935.flac |",
-      "real_speaker_id": "7286",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73073.flac |",
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-      "position_frames": 67600
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-16015.flac |",
-      "real_speaker_id": "5082",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-34548.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-      "speaker_id": "5082"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027813.json b/conversations/conv_027813.json
deleted file mode 100644
index f9ee89d1023f6a96d9f916d6a29ed174f51f6093..0000000000000000000000000000000000000000
--- a/conversations/conv_027813.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "5727-47030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47030.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8044",
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-      "speaker_id": 0,
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-      "utterance_id": "8479-276730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
-      "real_speaker_id": "8479",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
-      "real_speaker_id": "8479",
-      "position_frames": 83067
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-      "speaker_id": "5727"
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-      "duration": 1.2,
-      "start_time": 29.627874606243353,
-      "speaker_id": "8044"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027825.json b/conversations/conv_027825.json
deleted file mode 100644
index 503d9b266704c480e465837950fa6d7f99093587..0000000000000000000000000000000000000000
--- a/conversations/conv_027825.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58759.flac |",
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-      "utterance_id": "128-134884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 82578
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.40289718120318,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 143532
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 207115
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.652343155883067,
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-      "start_time": 24.853875418087277,
-      "speaker_id": "128"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027829.json b/conversations/conv_027829.json
deleted file mode 100644
index 7b89c0a2fc8356de45e8102b3b4821ead0f1bb7f..0000000000000000000000000000000000000000
--- a/conversations/conv_027829.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6695-71407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-71407.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 94729
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "5022",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-71407.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "6695"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027833.json b/conversations/conv_027833.json
deleted file mode 100644
index b7ad3f0d7412fd5840efa62b8cb551f0ca80a9cc..0000000000000000000000000000000000000000
--- a/conversations/conv_027833.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3654-171138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171138.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.627567008469166,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130103.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3654-171137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171137.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.695876754496688,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-139230.flac |",
-      "real_speaker_id": "1084",
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-    {
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-      "real_speaker_id": "3654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.514317688293765,
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-      "duration_frames": 39770,
-      "overlap": false,
-      "utterance_id": "1084-151395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-151395.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "speaker_id": "1084"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027838.json b/conversations/conv_027838.json
deleted file mode 100644
index 26362e2a3e3d52e240d52a7b23a2668e4ffbd8e3..0000000000000000000000000000000000000000
--- a/conversations/conv_027838.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.241921531710555,
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-      "overlap": false,
-      "utterance_id": "5720-48302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5720-48302.flac |",
-      "real_speaker_id": "5720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.052306142271191,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156067.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5720-48807.flac |",
-      "real_speaker_id": "5720",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "23"
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\ No newline at end of file
diff --git a/conversations/conv_027844.json b/conversations/conv_027844.json
deleted file mode 100644
index d4c5591976ea0d0c6277bf56405527323cbf22b3..0000000000000000000000000000000000000000
--- a/conversations/conv_027844.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2589-22581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22581.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.617962730010196,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31089.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
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-      "utterance_id": "8119-115687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115687.flac |",
-      "real_speaker_id": "8119",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-177234.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 23.157563953723297,
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-      "overlap": false,
-      "utterance_id": "8119-115687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115687.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 51167
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.174134012244664,
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-      "overlap": false,
-      "utterance_id": "2589-22581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22581.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 61919
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "event_class": "cough",
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-      "speaker_id": "8119"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027845.json b/conversations/conv_027845.json
deleted file mode 100644
index e152b2dedb19047f2309567b09c840d65176e2b9..0000000000000000000000000000000000000000
--- a/conversations/conv_027845.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.220255971987914,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2416-152137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
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-      "utterance_id": "1474-128276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128276.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 17.403098249413468,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 159140
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1474-128275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128275.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1474-172821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-172821.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1474/laugh/0016.wav",
-      "duration": 1.2,
-      "start_time": 24.57699314899347,
-      "speaker_id": "1474"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027848.json b/conversations/conv_027848.json
deleted file mode 100644
index f794d22fb3be0e769032fcacc4331ad8ef6ddc5a..0000000000000000000000000000000000000000
--- a/conversations/conv_027848.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_frame": 0,
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-      "utterance_id": "7699-105399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105399.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6505-231836.flac |",
-      "real_speaker_id": "6505",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-111754.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6505-231836",
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-      "real_speaker_id": "6505",
-      "position_frames": 94469
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.30398782257614,
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-      "start_frame": 452863,
-      "duration_frames": 59136,
-      "overlap": false,
-      "utterance_id": "7699-105389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105389.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6505/laugh/0074.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8011"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027852.json b/conversations/conv_027852.json
deleted file mode 100644
index ad41b94de466a5183f6ba62a46e73444f3e36405..0000000000000000000000000000000000000000
--- a/conversations/conv_027852.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.77853835787725,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164323.flac |",
-      "real_speaker_id": "1870",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164330.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164330.flac |",
-      "real_speaker_id": "1870",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5620/laugh/0018.wav",
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-      "speaker_id": "1870"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027864.json b/conversations/conv_027864.json
deleted file mode 100644
index 6be6a0e68b0c1b73ec75abc97abde71173fa0c1c..0000000000000000000000000000000000000000
--- a/conversations/conv_027864.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4133-6541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.766492481565956,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283493.flac |",
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-      "real_speaker_id": "4133",
-      "position_frames": 153121
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-      "utterance_id": "4710-24607",
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-      "real_speaker_id": "4710",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_027868.json b/conversations/conv_027868.json
deleted file mode 100644
index ca2204ac53aec15d7b21d7a445b160e5d44f6232..0000000000000000000000000000000000000000
--- a/conversations/conv_027868.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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-  "num_speakers": 2,
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-      "real_speaker_id": "5628",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74242.flac |",
-      "real_speaker_id": "6705",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6705-74244",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_027872.json b/conversations/conv_027872.json
deleted file mode 100644
index 35e53d088612e61463dd1d3f75f39c1ad1b9f56d..0000000000000000000000000000000000000000
--- a/conversations/conv_027872.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1535-141642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141642.flac |",
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-      "duration": 1.08,
-      "start_time": 29.32865745912217,
-      "speaker_id": "1535"
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-      "event_class": "laugh",
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-      "start_time": 31.12969817663541,
-      "speaker_id": "127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027879.json b/conversations/conv_027879.json
deleted file mode 100644
index 7d4f62122018c63c6dfe0a67c9d07e70171e94b4..0000000000000000000000000000000000000000
--- a/conversations/conv_027879.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "542-125349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125349.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.52667290559331,
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-      "position_frames": 0
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-      "start_time": 13.738428227069875,
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-      "utterance_id": "409-124990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/409-124990.flac |",
-      "real_speaker_id": "409",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "542-125351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125351.flac |",
-      "real_speaker_id": "542",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.720725436346363,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125349.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 96836
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.997371358133858,
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-      "position_frames": 79521
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-  "background_events": [
-    {
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-      "duration": 1.16,
-      "start_time": 24.536334018407718,
-      "speaker_id": "542"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027880.json b/conversations/conv_027880.json
deleted file mode 100644
index ece9cc0d243b142c67044337cfa3962a3910a182..0000000000000000000000000000000000000000
--- a/conversations/conv_027880.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-11599.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-285173.flac |",
-      "real_speaker_id": "8459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.403563295144615,
-      "end_time": 32.0,
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-      "utterance_id": "451-126829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126829.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 110668
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_027887.json b/conversations/conv_027887.json
deleted file mode 100644
index 59c88235f8105f15bc2196f0961387a7a603ba9d..0000000000000000000000000000000000000000
--- a/conversations/conv_027887.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-11254.flac |",
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-      "real_speaker_id": "4057",
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_027891.json b/conversations/conv_027891.json
deleted file mode 100644
index 2a3ba89fa0099822d75fc7b14390c263c3b53629..0000000000000000000000000000000000000000
--- a/conversations/conv_027891.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
-      "duration": 4.270353334761719,
-      "start_time": 27.680777129889844
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8536/laugh/0040.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "8536"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6484/laugh/0121.wav",
-      "duration": 0.6032823956696565,
-      "start_time": 5.415833420299063,
-      "speaker_id": "6484"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/446/laugh/0035.wav",
-      "duration": 1.2,
-      "start_time": 17.126339831388023,
-      "speaker_id": "446"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027896.json b/conversations/conv_027896.json
deleted file mode 100644
index 267487d746e4182fdce8e855a778a46d473d3da9..0000000000000000000000000000000000000000
--- a/conversations/conv_027896.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.830702031890298,
-      "duration": 3.830702031890298,
-      "start_frame": 0,
-      "duration_frames": 61291,
-      "overlap": false,
-      "utterance_id": "1266-135837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-135837.flac |",
-      "real_speaker_id": "1266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.520525676214279,
-      "end_time": 8.092360498624263,
-      "duration": 3.5718348224099845,
-      "start_frame": 72328,
-      "duration_frames": 57149,
-      "overlap": false,
-      "utterance_id": "7997-111777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111777.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.483752465926262,
-      "end_time": 12.074416486819098,
-      "duration": 3.590664020892836,
-      "start_frame": 135740,
-      "duration_frames": 57450,
-      "overlap": false,
-      "utterance_id": "1266-135837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-135837.flac |",
-      "real_speaker_id": "1266",
-      "position_frames": 61291
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.704249138704325,
-      "end_time": 17.11310117697286,
-      "duration": 4.408852038268535,
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-      "duration_frames": 70541,
-      "overlap": true,
-      "utterance_id": "7997-275179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-275179.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.03051253088856,
-      "end_time": 23.783936905783985,
-      "duration": 5.753424374895425,
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-      "duration_frames": 92054,
-      "overlap": false,
-      "utterance_id": "1266-135837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-135837.flac |",
-      "real_speaker_id": "1266",
-      "position_frames": 118741
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.185984033057213,
-      "end_time": 29.96493883458344,
-      "duration": 5.7789548015262255,
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-      "duration_frames": 92463,
-      "overlap": false,
-      "utterance_id": "7997-111777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111777.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 57149
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.81218401125941,
-      "end_time": 32.0,
-      "duration": 1.1878159887405886,
-      "start_frame": 492994,
-      "duration_frames": 19005,
-      "overlap": false,
-      "utterance_id": "1266-136524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-136524.flac |",
-      "real_speaker_id": "1266",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 6.76614110306539
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_4.wav",
-      "duration": 0.2465986394557823,
-      "start_time": 20.459672304126027
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/164574.wav",
-      "duration": 0.09782312925170068,
-      "start_time": 11.833558690347873
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1266/cough/0002.wav",
-      "duration": 1.4203184817651628,
-      "start_time": 1.8721066945532707,
-      "speaker_id": "1266"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7997/cough/0071.wav",
-      "duration": 0.4803253460767069,
-      "start_time": 8.095259934674663,
-      "speaker_id": "7997"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1266/laugh/0061.wav",
-      "duration": 0.7474199726029932,
-      "start_time": 9.756977696811596,
-      "speaker_id": "1266"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7997/laugh/0029.wav",
-      "duration": 0.824397857193818,
-      "start_time": 11.628759779746911,
-      "speaker_id": "7997"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7997/laugh/0126.wav",
-      "duration": 0.9879869996969938,
-      "start_time": 26.022541642901338,
-      "speaker_id": "7997"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1266/laugh/0018.wav",
-      "duration": 0.8859832052350416,
-      "start_time": 29.84224112383617,
-      "speaker_id": "1266"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027900.json b/conversations/conv_027900.json
deleted file mode 100644
index 9505c236287f65b0fcf6bf11904cad9b42e649f8..0000000000000000000000000000000000000000
--- a/conversations/conv_027900.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.545226719022516,
-      "duration": 6.545226719022516,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1748-1562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1562.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.791958038321745,
-      "end_time": 11.245541624999586,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.118263148197482,
-      "end_time": 17.72308035912406,
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-      "overlap": false,
-      "utterance_id": "6954-76168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76168.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.95220856814447,
-      "end_time": 21.86303196959278,
-      "duration": 3.9108234014483094,
-      "start_frame": 287235,
-      "duration_frames": 62573,
-      "overlap": false,
-      "utterance_id": "6954-76579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6954-76579.flac |",
-      "real_speaker_id": "6954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.831433965022125,
-      "end_time": 28.27330959252097,
-      "duration": 5.441875627498845,
-      "start_frame": 365302,
-      "duration_frames": 87070,
-      "overlap": false,
-      "utterance_id": "1748-1560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1560.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.822101483952892,
-      "end_time": 32.0,
-      "duration": 3.177898516047108,
-      "start_frame": 461153,
-      "duration_frames": 50846,
-      "overlap": false,
-      "utterance_id": "1748-1560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1560.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 87070
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_2.wav",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "duration": 1.2,
-      "start_time": 6.729082745348762,
-      "speaker_id": "1748"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5104/laugh/0069.wav",
-      "duration": 1.650817571324874,
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-    {
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-      "duration": 1.0,
-      "start_time": 5.621771602053135,
-      "speaker_id": "5104"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6954/laugh/0003.wav",
-      "duration": 1.36,
-      "start_time": 20.09032981930144,
-      "speaker_id": "6954"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1748/laugh/0026.wav",
-      "duration": 0.8193845273495473,
-      "start_time": 25.30532983231557,
-      "speaker_id": "1748"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027901.json b/conversations/conv_027901.json
deleted file mode 100644
index 29235a7e83ffb13c3327471239a5adf3859b054b..0000000000000000000000000000000000000000
--- a/conversations/conv_027901.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.763590587366606,
-      "duration": 5.763590587366606,
-      "start_frame": 0,
-      "duration_frames": 92217,
-      "overlap": false,
-      "utterance_id": "3486-166446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166446.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.125604237365058,
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-      "duration": 5.383600208379908,
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-      "duration_frames": 86137,
-      "overlap": true,
-      "utterance_id": "8629-261139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261139.flac |",
-      "real_speaker_id": "8629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.140919073115946,
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-      "duration": 6.109635168008147,
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-      "duration_frames": 97754,
-      "overlap": true,
-      "utterance_id": "1263-141777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-141777.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.38871866950909,
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-      "utterance_id": "8629-261139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261139.flac |",
-      "real_speaker_id": "8629",
-      "position_frames": 86137
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.9857552490216,
-      "end_time": 28.25336906702604,
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-      "overlap": false,
-      "utterance_id": "1263-138246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-138246.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.260074487340283,
-      "end_time": 32.0,
-      "duration": 2.739925512659717,
-      "start_frame": 468161,
-      "duration_frames": 43838,
-      "overlap": false,
-      "utterance_id": "3486-166424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
-      "duration": 0.47965986394557825,
-      "start_time": 8.449329675490766
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_027917.json b/conversations/conv_027917.json
deleted file mode 100644
index 88b37ae6d3b272a10faea23995365219e5774174..0000000000000000000000000000000000000000
--- a/conversations/conv_027917.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.881700387111266,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.293282625094099,
-      "duration": 3.293282625094099,
-      "start_frame": 0,
-      "duration_frames": 52692,
-      "overlap": false,
-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.7426220324413544,
-      "end_time": 10.58542343505912,
-      "duration": 6.8428014026177655,
-      "start_frame": 59881,
-      "duration_frames": 109484,
-      "overlap": false,
-      "utterance_id": "614-6500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.005514512715134,
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-      "duration": 4.433399143870083,
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-      "duration_frames": 70934,
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-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 52692
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.28849566744807,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130560.flac |",
-      "real_speaker_id": "510",
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-      "speaker_id": "1695"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027921.json b/conversations/conv_027921.json
deleted file mode 100644
index 7d95acb190d33abc34b86502313c1676991c06bc..0000000000000000000000000000000000000000
--- a/conversations/conv_027921.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153302.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 0
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-      "utterance_id": "4238-12895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12895.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-14356.flac |",
-      "real_speaker_id": "4591",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153301.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12895.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_027937.json b/conversations/conv_027937.json
deleted file mode 100644
index 3686bf809ed82e21d027432e0a3ea360b3cad72c..0000000000000000000000000000000000000000
--- a/conversations/conv_027937.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_027940.json b/conversations/conv_027940.json
deleted file mode 100644
index 4065ee71933eaf8c8982ba8a1f16e450ed433c5c..0000000000000000000000000000000000000000
--- a/conversations/conv_027940.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_027956.json b/conversations/conv_027956.json
deleted file mode 100644
index 1e1b6d21a60de819a6871a50876155c475887004..0000000000000000000000000000000000000000
--- a/conversations/conv_027956.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7360-86712.flac |",
-      "real_speaker_id": "7360",
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-    {
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-      "speaker_id": "2531"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027957.json b/conversations/conv_027957.json
deleted file mode 100644
index 73aa1844889d9d0196959a48d440a9a3eac5b0c0..0000000000000000000000000000000000000000
--- a/conversations/conv_027957.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110705.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 19.48235269205375,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-124588.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.68846516724229,
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-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.825610919801544,
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-      "duration": 2.1743890801984556,
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-      "utterance_id": "118-124588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-124588.flac |",
-      "real_speaker_id": "118",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_027960.json b/conversations/conv_027960.json
deleted file mode 100644
index 7e8632e73a135c001f29b04f85043c9eac0596e2..0000000000000000000000000000000000000000
--- a/conversations/conv_027960.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34644.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32136.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34645.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34645.flac |",
-      "real_speaker_id": "7178",
-      "position_frames": 82558
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-      "segment_id": "seg0005",
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-      "utterance_id": "5147-32137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32137.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "speaker_id": "1349"
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-      "start_time": 27.78068538115845,
-      "speaker_id": "5147"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027976.json b/conversations/conv_027976.json
deleted file mode 100644
index 4a32a1d533be8f6b36a85d6b64b1dcd6705eb45b..0000000000000000000000000000000000000000
--- a/conversations/conv_027976.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "3008-164328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 66287
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-      "utterance_id": "4910-14124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-14124.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3214",
-      "position_frames": 0
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-      "real_speaker_id": "3214",
-      "position_frames": 67415
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_027983.json b/conversations/conv_027983.json
deleted file mode 100644
index 3bc8f14d1a3a45b3224efe98793de9535a505a02..0000000000000000000000000000000000000000
--- a/conversations/conv_027983.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
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-      "real_speaker_id": "6009",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.583590929480389,
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-      "utterance_id": "712-123606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
-      "real_speaker_id": "712",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-161226.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6009-57639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57639.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-160958.flac |",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6009/laugh/0067.wav",
-      "duration": 1.52,
-      "start_time": 20.07078251599386,
-      "speaker_id": "6009"
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-      "event_class": "cough",
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-      "speaker_id": "2775"
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-}
\ No newline at end of file
diff --git a/conversations/conv_027984.json b/conversations/conv_027984.json
deleted file mode 100644
index 129563b7f04a7322b34a766fac0a7e3a13533a64..0000000000000000000000000000000000000000
--- a/conversations/conv_027984.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.424638693578226,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2288-155711.flac |",
-      "real_speaker_id": "2288",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.200004306115492,
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-      "utterance_id": "1674-142298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1674-142298.flac |",
-      "real_speaker_id": "1674",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.015075529560338,
-      "end_time": 22.29927725135803,
-      "duration": 4.284201721797692,
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-      "duration_frames": 68547,
-      "overlap": true,
-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 77329
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.394772997992778,
-      "end_time": 28.23749608242924,
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-      "utterance_id": "1674-142277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1674-142277.flac |",
-      "real_speaker_id": "1674",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.27524728438092,
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-      "duration": 2.724752715619079,
-      "start_frame": 468403,
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-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 145876
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_027992.json b/conversations/conv_027992.json
deleted file mode 100644
index ab7a7070653a19abb63b9016ce85d6bd7731a46f..0000000000000000000000000000000000000000
--- a/conversations/conv_027992.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.725015358289045,
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-      "utterance_id": "7337-92819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.313912213152929,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4731-58193.flac |",
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-      "utterance_id": "7337-89742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-89742.flac |",
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-      "utterance_id": "7051-259009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
-      "real_speaker_id": "7051",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4731-58193.flac |",
-      "real_speaker_id": "4731",
-      "position_frames": 93180
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7051-259009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
-      "real_speaker_id": "7051",
-      "position_frames": 52195
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.339363037507354,
-      "end_time": 32.0,
-      "duration": 1.6606369624926458,
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-      "utterance_id": "7337-89742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-89742.flac |",
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-      "position_frames": 67473
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027995.json b/conversations/conv_027995.json
deleted file mode 100644
index 910df9d745c8e4dc95f309a7d35c8734bda204c8..0000000000000000000000000000000000000000
--- a/conversations/conv_027995.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.304713824137888,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.0991894130375615,
-      "duration": 6.0991894130375615,
-      "start_frame": 0,
-      "duration_frames": 97587,
-      "overlap": false,
-      "utterance_id": "6668-34612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34612.flac |",
-      "real_speaker_id": "6668",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.25864879700649,
-      "end_time": 9.41992103337896,
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-      "overlap": false,
-      "utterance_id": "6914-284528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-284528.flac |",
-      "real_speaker_id": "6914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "6668-34648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34648.flac |",
-      "real_speaker_id": "6668",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.580089766310671,
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-      "utterance_id": "6914-280389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-280389.flac |",
-      "real_speaker_id": "6914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.954585981323014,
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-      "utterance_id": "7316-10642",
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-      "real_speaker_id": "7316",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.98065009644011,
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-      "duration": 6.324063727697777,
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-      "duration_frames": 101185,
-      "overlap": false,
-      "utterance_id": "6668-34612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34612.flac |",
-      "real_speaker_id": "6668",
-      "position_frames": 97587
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 24.63295474109738,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7316/cough/0055.wav",
-      "duration": 0.5325057786229455,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6668/cough/0003.wav",
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-      "start_time": 27.359252136117934,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_027999.json b/conversations/conv_027999.json
deleted file mode 100644
index 1c8fcc8801caf0a99794791aa33270b9d91aff89..0000000000000000000000000000000000000000
--- a/conversations/conv_027999.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.064033907251726,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.061549886938453,
-      "duration": 4.061549886938453,
-      "start_frame": 0,
-      "duration_frames": 64984,
-      "overlap": false,
-      "utterance_id": "4189-274546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4189-274546.flac |",
-      "real_speaker_id": "4189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0003",
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-      "start_time": 18.52188203766551,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 91314
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.184644413715333,
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-      "utterance_id": "82-122859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "127-129385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 21.26132802013683,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
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-      "event_class": "Dishes",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_028007.json b/conversations/conv_028007.json
deleted file mode 100644
index 37d9da41ff10b38c896a5e017c573ebf8e785cfd..0000000000000000000000000000000000000000
--- a/conversations/conv_028007.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.551583604253941,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4592-22178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22178.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.085193125710039,
-      "end_time": 11.129961911357167,
-      "duration": 5.044768785647127,
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-      "overlap": false,
-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.850639803463752,
-      "end_time": 15.222705476378579,
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-      "duration_frames": 69953,
-      "overlap": true,
-      "utterance_id": "4592-22179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22179.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.97260502511106,
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-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 80716
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.37916775553314,
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-      "utterance_id": "8590-258292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258292.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4592-22178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22178.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 88825
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "duration": 1.0,
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-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5883/laugh/0085.wav",
-      "duration": 1.2,
-      "start_time": 14.62127673341963,
-      "speaker_id": "5883"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2806294982475808,
-      "start_time": 28.302275410651358,
-      "speaker_id": "8590"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028011.json b/conversations/conv_028011.json
deleted file mode 100644
index 9c04bccfc61695ca17f3ee91089149055f7d0c36..0000000000000000000000000000000000000000
--- a/conversations/conv_028011.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8705-290363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
-      "real_speaker_id": "8705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.845963557380542,
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-      "duration_frames": 52410,
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-      "utterance_id": "8705-290363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
-      "real_speaker_id": "8705",
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-      "overlap": false,
-      "utterance_id": "2380-152158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-162375.flac |",
-      "real_speaker_id": "204",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.777584872193003,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 49271
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8705-290361",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028027.json b/conversations/conv_028027.json
deleted file mode 100644
index f3e73cf6c4388f23751dcef1fcbc4afa237a5592..0000000000000000000000000000000000000000
--- a/conversations/conv_028027.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5190-87766",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3240/cough/0046.wav",
-      "duration": 0.92,
-      "start_time": 21.3694306569505,
-      "speaker_id": "3240"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028031.json b/conversations/conv_028031.json
deleted file mode 100644
index 86fbe863b66151a26954295709dba68af3ead76d..0000000000000000000000000000000000000000
--- a/conversations/conv_028031.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.047750815594146,
-      "duration": 6.047750815594146,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.044177387144546,
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-      "overlap": true,
-      "utterance_id": "1066-5330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-5330.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.734418465663452,
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-      "duration": 5.025951828792505,
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-      "overlap": false,
-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 96764
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.885915385847774,
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-      "duration": 4.498322107937874,
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-      "duration_frames": 71973,
-      "overlap": false,
-      "utterance_id": "1187-136241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136241.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.311276885928947,
-      "end_time": 26.89166446764492,
-      "duration": 4.580387581715971,
-      "start_frame": 356980,
-      "duration_frames": 73286,
-      "overlap": false,
-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 177179
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.530775378363014,
-      "end_time": 32.0,
-      "duration": 4.469224621636986,
-      "start_frame": 440492,
-      "duration_frames": 71507,
-      "overlap": false,
-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 250465
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.1273821583050303,
-      "start_time": 10.639147375466262,
-      "speaker_id": "1066"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028046.json b/conversations/conv_028046.json
deleted file mode 100644
index 7db121c6cc3b7d45ea010975db2629403a4d3545..0000000000000000000000000000000000000000
--- a/conversations/conv_028046.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.594552889964859,
-      "duration": 5.594552889964859,
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-      "duration_frames": 89512,
-      "overlap": false,
-      "utterance_id": "466-134185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134185.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.472703305215366,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-143879.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.291057223238392,
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-      "overlap": false,
-      "utterance_id": "466-134196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134196.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.857768738799482,
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-      "overlap": true,
-      "utterance_id": "3914-10089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 53855
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.119306473558414,
-      "end_time": 32.0,
-      "duration": 4.880693526441586,
-      "start_frame": 433908,
-      "duration_frames": 78091,
-      "overlap": false,
-      "utterance_id": "466-134196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134196.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 94335
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/466/laugh/0042.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "466"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/466/cough/0027.wav",
-      "duration": 0.6713767143838635,
-      "start_time": 0,
-      "speaker_id": "466"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3914/laugh/0097.wav",
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-      "start_time": 9.910751424059962,
-      "speaker_id": "3914"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1926/cough/0099.wav",
-      "duration": 0.3992723170737741,
-      "start_time": 9.730404594176846,
-      "speaker_id": "1926"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/466/laugh/0062.wav",
-      "duration": 1.4,
-      "start_time": 13.677983390963995,
-      "speaker_id": "466"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028050.json b/conversations/conv_028050.json
deleted file mode 100644
index 4ee7bb6cf96fb801438c616411f0df62cad19b94..0000000000000000000000000000000000000000
--- a/conversations/conv_028050.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.310953333108703,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5979-42000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42000.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.799703890856752,
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-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 96213,
-      "overlap": false,
-      "utterance_id": "5979-42005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42005.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.478261805483577,
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-      "utterance_id": "7910-105673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-105673.flac |",
-      "real_speaker_id": "7910",
-      "position_frames": 0
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-    {
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-      "start_time": 24.214789361268,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42005.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 96213
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 26622,
-      "overlap": true,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 104328
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "event_class": "laugh",
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-    {
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5979/laugh/0061.wav",
-      "duration": 1.12,
-      "start_time": 14.420401974307635,
-      "speaker_id": "5979"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028066.json b/conversations/conv_028066.json
deleted file mode 100644
index ee64575066cb42eebcaedaf3b0a519f0820d9627..0000000000000000000000000000000000000000
--- a/conversations/conv_028066.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "8222-274379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274379.flac |",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3090-164191",
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-    {
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "3090-164191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3090-164191.flac |",
-      "real_speaker_id": "3090",
-      "position_frames": 97714
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8222/cough/0013.wav",
-      "duration": 0.7620826215884636,
-      "start_time": 0.4631345441085204,
-      "speaker_id": "8222"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3090/laugh/0092.wav",
-      "duration": 1.27168045698126,
-      "start_time": 30.72831954301874,
-      "speaker_id": "3090"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028067.json b/conversations/conv_028067.json
deleted file mode 100644
index 83c5583cb06b7eca08646dd825d8504a74936c3c..0000000000000000000000000000000000000000
--- a/conversations/conv_028067.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.163478279885712,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.3859535806064773,
-      "duration": 3.3859535806064773,
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-      "duration_frames": 54175,
-      "overlap": false,
-      "utterance_id": "7700-92925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.217730356078333,
-      "end_time": 10.803108352396059,
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-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.597678311544847,
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-      "utterance_id": "7700-92925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 54175
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.698107941026972,
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-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 105366
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.200546777310592,
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-      "duration": 4.8303775232438495,
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-      "duration_frames": 77286,
-      "overlap": false,
-      "utterance_id": "7700-92925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 156723
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.620146082930003,
-      "end_time": 31.163478279885712,
-      "duration": 2.54333219695571,
-      "start_frame": 457922,
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-      "overlap": true,
-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 175118
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-      "start_time": 11.003664762661524,
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-    {
-      "event_class": "cough",
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-      "duration": 0.7601906105671518,
-      "start_time": 17.87556171215587,
-      "speaker_id": "3851"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028070.json b/conversations/conv_028070.json
deleted file mode 100644
index 5d21c35656741bcb447f5c0701da98d1a0a117e4..0000000000000000000000000000000000000000
--- a/conversations/conv_028070.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3196-151981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/920-681.flac |",
-      "real_speaker_id": "920",
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-      "overlap": false,
-      "utterance_id": "3196-151982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151982.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.255808592553517,
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-      "utterance_id": "920-668",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/920-668.flac |",
-      "real_speaker_id": "920",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.331538259437927,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151982.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 76672
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/920-668.flac |",
-      "real_speaker_id": "920",
-      "position_frames": 93609
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "foreground_events": [
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-    {
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-      "duration": 0.8167141564349925,
-      "start_time": 25.486949082806007,
-      "speaker_id": "3196"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028077.json b/conversations/conv_028077.json
deleted file mode 100644
index 88404f39c1f7877540d6214da01ba7eadbcd29f2..0000000000000000000000000000000000000000
--- a/conversations/conv_028077.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "4742-74181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132864.flac |",
-      "real_speaker_id": "699",
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-      "real_speaker_id": "7316",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132882.flac |",
-      "real_speaker_id": "699",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.320699836508958,
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-      "utterance_id": "4742-41609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 27.511782366152154,
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-      "utterance_id": "699-132866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132866.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_028085.json b/conversations/conv_028085.json
deleted file mode 100644
index 77d043c8cd040486d06ea53a5dbd66e9d74981fc..0000000000000000000000000000000000000000
--- a/conversations/conv_028085.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.213457839610478,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1629-139707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139707.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 101361,
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-      "utterance_id": "1629-139707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139707.flac |",
-      "real_speaker_id": "1629",
-      "position_frames": 80146
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-    {
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-      "speaker_id": 1,
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-      "real_speaker_id": "3289",
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-    {
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-      "position_frames": 67415
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171109.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 65804
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1629/laugh/0108.wav",
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-      "start_time": 7.467454622834609,
-      "speaker_id": "1629"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3289/laugh/0085.wav",
-      "duration": 1.1504482974929986,
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-      "speaker_id": "3289"
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-      "duration": 0.9278536496094641,
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-      "speaker_id": "151"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028088.json b/conversations/conv_028088.json
deleted file mode 100644
index 071c673f1c592aff383234bd50ac7bbc43f8fac5..0000000000000000000000000000000000000000
--- a/conversations/conv_028088.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1636-141789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-141789.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.327382977609931,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40469.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.840475132159606,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-111766.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "1636-130535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130535.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.372190641430358,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40471.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-141789.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 95980
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.691239286166255,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-116154.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_028089.json b/conversations/conv_028089.json
deleted file mode 100644
index 3dbfe7a867f1e84298da03c5c7b9f46ed7abb798..0000000000000000000000000000000000000000
--- a/conversations/conv_028089.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-12539.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-12539.flac |",
-      "real_speaker_id": "3003",
-      "position_frames": 91613
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.428354440572605,
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-      "overlap": false,
-      "utterance_id": "263-121285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/263-121285.flac |",
-      "real_speaker_id": "263",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-14274.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
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-      "position_frames": 73694
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_028093.json b/conversations/conv_028093.json
deleted file mode 100644
index 24178e4a5962d0b244d4be7a421bec55ba0a3003..0000000000000000000000000000000000000000
--- a/conversations/conv_028093.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.424317015762455,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1160",
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-      "segment_id": "seg0002",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1160-139727",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_028098.json b/conversations/conv_028098.json
deleted file mode 100644
index e58f3d9160a124d0244659f58a926e13acdfb85a..0000000000000000000000000000000000000000
--- a/conversations/conv_028098.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6848-252323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6848-252323.flac |",
-      "real_speaker_id": "6848",
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-    {
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-      "utterance_id": "6399-278849",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "6399",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.21679212760575,
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-      "utterance_id": "6848-76049",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6848-76049.flac |",
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-      "position_frames": 55182
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "duration": 1.64,
-      "start_time": 29.408531557936616,
-      "speaker_id": "6848"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028103.json b/conversations/conv_028103.json
deleted file mode 100644
index 9d79839847ddb0704112acf0a35d01c83a56decf..0000000000000000000000000000000000000000
--- a/conversations/conv_028103.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "4859",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8499-256253.flac |",
-      "real_speaker_id": "8499",
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-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.27348580422427,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-26870.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.33789674518768,
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-      "utterance_id": "4859-26870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-26870.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 107279
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.407058999729728,
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-      "duration": 2.5929410002702724,
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-      "utterance_id": "4859-26870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-26870.flac |",
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-      "position_frames": 203952
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_028108.json b/conversations/conv_028108.json
deleted file mode 100644
index 9a2a65f9410b3ef66f4d8fb38f2bc956ae7fba03..0000000000000000000000000000000000000000
--- a/conversations/conv_028108.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4546-16812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16812.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
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-      "real_speaker_id": "4546",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "4546-16781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 86101
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.387256922959924,
-      "end_time": 32.0,
-      "duration": 4.612743077040076,
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-      "duration_frames": 73803,
-      "overlap": false,
-      "utterance_id": "4546-16812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16812.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 63196
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4546/laugh/0014.wav",
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-      "speaker_id": "4546"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028115.json b/conversations/conv_028115.json
deleted file mode 100644
index 3a4852b5a528dfe0e94570c0e477b42422ed7f6e..0000000000000000000000000000000000000000
--- a/conversations/conv_028115.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "duration": 4.986522688830326,
-      "start_frame": 0,
-      "duration_frames": 79784,
-      "overlap": false,
-      "utterance_id": "8846-305217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305217.flac |",
-      "real_speaker_id": "8846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.202456956266793,
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-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 88692
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "8846",
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-      "real_speaker_id": "4693",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 179450
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8846/laugh/0001.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8846/laugh/0005.wav",
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-      "speaker_id": "2061"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028119.json b/conversations/conv_028119.json
deleted file mode 100644
index d55e60b8a4db90945f872ac717201d6623953b5f..0000000000000000000000000000000000000000
--- a/conversations/conv_028119.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.775597504952277,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.327934776798111,
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-      "utterance_id": "8625-211892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-211892.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_028122.json b/conversations/conv_028122.json
deleted file mode 100644
index ef9b5b3b0c24453e0c541166eec98ce13edccd0a..0000000000000000000000000000000000000000
--- a/conversations/conv_028122.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-149794.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-218.flac |",
-      "real_speaker_id": "89",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-7140.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "1593-94847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1593-94847.flac |",
-      "real_speaker_id": "1593",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.013072803452282,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-218.flac |",
-      "real_speaker_id": "89",
-      "position_frames": 75676
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-      "segment_id": "seg0005",
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-      "start_time": 28.38316197449265,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-7140.flac |",
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-      "position_frames": 85172
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_028123.json b/conversations/conv_028123.json
deleted file mode 100644
index f13ffbb057148904687a82aee98fcca1c8010ccd..0000000000000000000000000000000000000000
--- a/conversations/conv_028123.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "2518",
-      "position_frames": 90023
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-      "segment_id": "seg0003",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "start_time": 25.884097950280115,
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-      "real_speaker_id": "8324",
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\ No newline at end of file
diff --git a/conversations/conv_028132.json b/conversations/conv_028132.json
deleted file mode 100644
index 4ca1017aa46b6d1aca8edd3f95353b7b12c108af..0000000000000000000000000000000000000000
--- a/conversations/conv_028132.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131003.flac |",
-      "real_speaker_id": "850",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1695-142312",
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\ No newline at end of file
diff --git a/conversations/conv_028135.json b/conversations/conv_028135.json
deleted file mode 100644
index 7abb0f49f3b9b8c48a4929d49ccad0411f682b39..0000000000000000000000000000000000000000
--- a/conversations/conv_028135.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6535-66371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-66371.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-66371.flac |",
-      "real_speaker_id": "6535",
-      "position_frames": 89034
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107484.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 0
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-      "speaker_id": "6535"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6754/laugh/0109.wav",
-      "duration": 1.24,
-      "start_time": 4.726083066188641,
-      "speaker_id": "6754"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6754/laugh/0119.wav",
-      "duration": 1.28,
-      "start_time": 15.287092972755156,
-      "speaker_id": "6754"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028139.json b/conversations/conv_028139.json
deleted file mode 100644
index 9bb58704d859fc85541dd801e57c4386f0aa8079..0000000000000000000000000000000000000000
--- a/conversations/conv_028139.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.2792295009359247,
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-      "utterance_id": "479-107480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-107480.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "479-107480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-107480.flac |",
-      "real_speaker_id": "479",
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-      "overlap": false,
-      "utterance_id": "2553-163730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163730.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.967626238581346,
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-      "duration": 5.7615067776563675,
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-      "overlap": true,
-      "utterance_id": "479-134717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-134717.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.005617093835596,
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-      "utterance_id": "2553-163692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163692.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "479-126480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-126480.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028142.json b/conversations/conv_028142.json
deleted file mode 100644
index 700ee4aae8b84d67812c71249e7e340f41053f06..0000000000000000000000000000000000000000
--- a/conversations/conv_028142.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12159.flac |",
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-      "utterance_id": "4156-12351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12351.flac |",
-      "real_speaker_id": "4156",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 87112
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12351.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 96192
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "589"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028149.json b/conversations/conv_028149.json
deleted file mode 100644
index 1c64e3b2921db244cff884484d926f908333937e..0000000000000000000000000000000000000000
--- a/conversations/conv_028149.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.550542707882666,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7874-110243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
-      "real_speaker_id": "7874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1863",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-19115.flac |",
-      "real_speaker_id": "3657",
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-    {
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-    {
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-      "utterance_id": "3657-78622",
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-      "real_speaker_id": "3657",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 97229
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
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-      "speaker_id": "7874"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028154.json b/conversations/conv_028154.json
deleted file mode 100644
index 3cecba9cb4aa230cc1ced3f89a3464c0cd660a62..0000000000000000000000000000000000000000
--- a/conversations/conv_028154.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.257880020376362,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4973-24515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24515.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.1839885728118125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24516.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34634.flac |",
-      "real_speaker_id": "6377",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-44575.flac |",
-      "real_speaker_id": "4973",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34619.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.76024119381108,
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-      "start_frame": 444163,
-      "duration_frames": 55962,
-      "overlap": true,
-      "utterance_id": "8443-274756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-274756.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
-      "start_time": 13.091341977273922
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
-      "duration": 2.0669614512471655,
-      "start_time": 25.303856404810595
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-      "start_time": 0.8921690052644778
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6377/laugh/0005.wav",
-      "duration": 0.9374433265221516,
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-      "speaker_id": "6377"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6377/cough/0009.wav",
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-      "start_time": 12.30341927076209,
-      "speaker_id": "6377"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6377/laugh/0005.wav",
-      "duration": 1.0500224359650123,
-      "start_time": 27.08203251194444,
-      "speaker_id": "6377"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8443/laugh/0033.wav",
-      "duration": 1.8,
-      "start_time": 28.775359863190467,
-      "speaker_id": "8443"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028158.json b/conversations/conv_028158.json
deleted file mode 100644
index 12ab26240ea1d668e4e7e1a1ea7fd9e86e2a5748..0000000000000000000000000000000000000000
--- a/conversations/conv_028158.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.381644360973716,
-      "duration": 4.381644360973716,
-      "start_frame": 0,
-      "duration_frames": 70106,
-      "overlap": false,
-      "utterance_id": "8786-276749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276749.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.572197137770906,
-      "end_time": 11.030284693638006,
-      "duration": 5.458087555867101,
-      "start_frame": 89155,
-      "duration_frames": 87329,
-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.820778479005286,
-      "end_time": 15.06545079934692,
-      "duration": 3.2446723203416337,
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-      "duration_frames": 51914,
-      "overlap": false,
-      "utterance_id": "153-126651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126651.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.83304403006914,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126652.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.661640640346615,
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-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 87329
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "153-126671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126671.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.630086791969816,
-      "end_time": 32.0,
-      "duration": 0.3699132080301837,
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-      "duration_frames": 5918,
-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 172851
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "8786"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/153/laugh/0112.wav",
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-      "speaker_id": "153"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028162.json b/conversations/conv_028162.json
deleted file mode 100644
index cd082437bb30b4de2362ef6c400b645f2b370846..0000000000000000000000000000000000000000
--- a/conversations/conv_028162.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.356067557712609,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127937.flac |",
-      "real_speaker_id": "921",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 79829
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "497-125118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
-      "real_speaker_id": "497",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "921",
-      "position_frames": 101319
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-    {
-      "segment_id": "seg0005",
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-      "duration": 4.060351703088741,
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-      "overlap": false,
-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 138119
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "497-129325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-129325.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2096/laugh/0043.wav",
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-    {
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-      "start_time": 12.27214879334054,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028174.json b/conversations/conv_028174.json
deleted file mode 100644
index 153b6c9140375e8bb01a5e05368bec8ec3764bf3..0000000000000000000000000000000000000000
--- a/conversations/conv_028174.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.125,
-  "segments": [
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-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 0
-    },
-    {
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-    {
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-      "segment_id": "seg0007",
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-  "background_events": [
-    {
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "2919"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6221/laugh/0028.wav",
-      "duration": 1.1096968359400046,
-      "start_time": 21.474109010508464,
-      "speaker_id": "6221"
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-    {
-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 25.602245810195136,
-      "speaker_id": "834"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028175.json b/conversations/conv_028175.json
deleted file mode 100644
index f5eb86eb0c8183180686727441d773257090e51f..0000000000000000000000000000000000000000
--- a/conversations/conv_028175.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2012-139358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139358.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.760328687593472,
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-      "utterance_id": "7518-86741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.989218129222571,
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-      "utterance_id": "1914-133440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-133440.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.671565096415982,
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-      "utterance_id": "2012-139355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139355.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.988122967751586,
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-      "duration_frames": 58910,
-      "overlap": false,
-      "utterance_id": "7518-86741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 101533
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.765099896049207,
-      "end_time": 32.0,
-      "duration": 3.2349001039507925,
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-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7518/laugh/0093.wav",
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-      "event_class": "cough",
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-      "speaker_id": "1914"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028178.json b/conversations/conv_028178.json
deleted file mode 100644
index fae047235a504eade0f4fa0463aec684820a70f8..0000000000000000000000000000000000000000
--- a/conversations/conv_028178.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4576-66270.flac |",
-      "real_speaker_id": "4576",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 182908
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.425460104553895,
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-      "utterance_id": "1392-140654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-140654.flac |",
-      "real_speaker_id": "1392",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4519-80189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-80189.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028181.json b/conversations/conv_028181.json
deleted file mode 100644
index d3918bd157977611e28aa9e11c99ba2c2fcc5fd8..0000000000000000000000000000000000000000
--- a/conversations/conv_028181.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3607",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_028197.json b/conversations/conv_028197.json
deleted file mode 100644
index 8d817620ad43b2362c73dd23ef65c975bef887d6..0000000000000000000000000000000000000000
--- a/conversations/conv_028197.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0001",
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-      "speaker_id": "8444"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7424/laugh/0005.wav",
-      "duration": 1.12,
-      "start_time": 9.904035987183343,
-      "speaker_id": "7424"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028206.json b/conversations/conv_028206.json
deleted file mode 100644
index a9c8159bdc244d2dc1cf04a5e2211cb254a0af7a..0000000000000000000000000000000000000000
--- a/conversations/conv_028206.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.587573863874415,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.007043047914749,
-      "duration": 6.007043047914749,
-      "start_frame": 0,
-      "duration_frames": 96112,
-      "overlap": false,
-      "utterance_id": "2026-81608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.448625966485094,
-      "end_time": 11.432304475334444,
-      "duration": 4.9836785088493505,
-      "start_frame": 103178,
-      "duration_frames": 79738,
-      "overlap": false,
-      "utterance_id": "7700-92919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92919.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.831938378118508,
-      "end_time": 15.023294528587728,
-      "duration": 3.1913561504692205,
-      "start_frame": 189311,
-      "duration_frames": 51061,
-      "overlap": false,
-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.961492478360416,
-      "end_time": 21.21456271054955,
-      "duration": 5.253070232189133,
-      "start_frame": 255383,
-      "duration_frames": 84049,
-      "overlap": false,
-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.413707001134952,
-      "end_time": 25.790485388015938,
-      "duration": 4.376778386880986,
-      "start_frame": 342619,
-      "duration_frames": 70028,
-      "overlap": false,
-      "utterance_id": "2026-81609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81609.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.61896976978958,
-      "end_time": 31.587573863874415,
-      "duration": 4.968604094084835,
-      "start_frame": 425903,
-      "duration_frames": 79497,
-      "overlap": true,
-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 51061
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2026/laugh/0023.wav",
-      "duration": 0.6801320813572846,
-      "start_time": 0,
-      "speaker_id": "2026"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4474/laugh/0054.wav",
-      "duration": 1.3332020292099651,
-      "start_time": 25.20688585300613,
-      "speaker_id": "4474"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028210.json b/conversations/conv_028210.json
deleted file mode 100644
index 020f6b5e2228e355bf4133d73dc1476e6e7cc180..0000000000000000000000000000000000000000
--- a/conversations/conv_028210.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.93972153174107,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.065640884348378,
-      "duration": 4.065640884348378,
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-      "overlap": false,
-      "utterance_id": "17-362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.35971629670276,
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-      "overlap": false,
-      "utterance_id": "3125-163698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-163698.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3125-132586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.437567331821477,
-      "end_time": 18.78825645209136,
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-      "start_frame": 231001,
-      "duration_frames": 69611,
-      "overlap": false,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.8174628604059,
-      "end_time": 25.441458486108463,
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-      "duration_frames": 89983,
-      "overlap": false,
-      "utterance_id": "17-362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 65050
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.915396167040356,
-      "end_time": 31.93972153174107,
-      "duration": 6.024325364700713,
-      "start_frame": 414646,
-      "duration_frames": 96389,
-      "overlap": false,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 69611
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
-      "duration": 1.2800919751969104,
-      "start_time": 11.99640888487959
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/17/laugh/0094.wav",
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-      "start_time": 22.387167654828367,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/332/laugh/0031.wav",
-      "duration": 0.8914648444762527,
-      "start_time": 27.8823868926703,
-      "speaker_id": "332"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028221.json b/conversations/conv_028221.json
deleted file mode 100644
index 47a6be4d72ad674ad872a8801236a5408850ee79..0000000000000000000000000000000000000000
--- a/conversations/conv_028221.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.89301107284624,
-      "duration": 5.89301107284624,
-      "start_frame": 0,
-      "duration_frames": 94288,
-      "overlap": false,
-      "utterance_id": "153-126652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126652.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.152922404943553,
-      "end_time": 11.55191416006011,
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-      "duration_frames": 86383,
-      "overlap": false,
-      "utterance_id": "6583-66463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66463.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.730634031086801,
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-      "overlap": false,
-      "utterance_id": "5656-44576",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5656-44576.flac |",
-      "real_speaker_id": "5656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.345176045036297,
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-      "utterance_id": "153-126671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126671.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.964430371361924,
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-      "utterance_id": "6583-66269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66269.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.285223922924782,
-      "end_time": 32.0,
-      "duration": 3.714776077075218,
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-      "duration_frames": 59436,
-      "overlap": false,
-      "utterance_id": "153-126652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126652.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 94288
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6583/laugh/0110.wav",
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-      "speaker_id": "6583"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028226.json b/conversations/conv_028226.json
deleted file mode 100644
index 8410647c175fe37b12e6b47e634d397982d4546e..0000000000000000000000000000000000000000
--- a/conversations/conv_028226.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.71280016284465,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.4739834898510233,
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-      "start_frame": 0,
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-      "utterance_id": "8011-117866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-117866.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.667092755731689,
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-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8011-280922",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-280922.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8011-291458",
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-    {
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-      "position_frames": 74531
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-    {
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-  "paralinguistic_events": [
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-      "duration": 0.8585477230580694,
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-      "speaker_id": "1571"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1093/cough/0110.wav",
-      "duration": 1.26,
-      "start_time": 26.887323361470262,
-      "speaker_id": "1093"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028230.json b/conversations/conv_028230.json
deleted file mode 100644
index 84a5d34c20efb08dd60bfe2e03e1272f7e1b71e0..0000000000000000000000000000000000000000
--- a/conversations/conv_028230.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.975429352232814,
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-      "overlap": false,
-      "utterance_id": "1392-140654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-140654.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.730063895155047,
-      "end_time": 11.437519436731447,
-      "duration": 4.7074555415764,
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-      "duration_frames": 75319,
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-      "utterance_id": "5299-34547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5299-34547.flac |",
-      "real_speaker_id": "5299",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.890161147661317,
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-      "duration": 3.8372465779019187,
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-      "utterance_id": "7644-104722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.461276352153103,
-      "end_time": 22.76935806645811,
-      "duration": 5.308081714305008,
-      "start_frame": 279380,
-      "duration_frames": 84929,
-      "overlap": false,
-      "utterance_id": "1392-128240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-128240.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.214953871938075,
-      "end_time": 27.823297585422793,
-      "duration": 4.608343713484718,
-      "start_frame": 371439,
-      "duration_frames": 73733,
-      "overlap": false,
-      "utterance_id": "7644-104722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 61395
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.063581636579784,
-      "end_time": 32.0,
-      "duration": 2.9364183634202163,
-      "start_frame": 465017,
-      "duration_frames": 46982,
-      "overlap": false,
-      "utterance_id": "5299-34546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5299-34546.flac |",
-      "real_speaker_id": "5299",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
-      "duration": 1.2095691609977324,
-      "start_time": 22.395992581656873
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1392/laugh/0026.wav",
-      "duration": 1.44,
-      "start_time": 6.14740825784097,
-      "speaker_id": "1392"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7644/laugh/0056.wav",
-      "duration": 0.6128997852826905,
-      "start_time": 22.591166332890815,
-      "speaker_id": "7644"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7644/cough/0024.wav",
-      "duration": 0.7894959508976565,
-      "start_time": 22.251207550127464,
-      "speaker_id": "7644"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028237.json b/conversations/conv_028237.json
deleted file mode 100644
index ff253f5f4b9b109bb8445dabea71d433d69b5f82..0000000000000000000000000000000000000000
--- a/conversations/conv_028237.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.207360324912711,
-      "duration": 5.207360324912711,
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-      "overlap": false,
-      "utterance_id": "5911-52164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-52164.flac |",
-      "real_speaker_id": "5911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.052418250524195,
-      "end_time": 11.177966074376272,
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-      "overlap": false,
-      "utterance_id": "100-121674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121674.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.93041318174275,
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-      "start_frame": 190886,
-      "duration_frames": 50801,
-      "overlap": false,
-      "utterance_id": "5911-48574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-48574.flac |",
-      "real_speaker_id": "5911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.738409868156126,
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-      "duration": 3.3315221124611942,
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-      "overlap": false,
-      "utterance_id": "100-121669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.567771159921065,
-      "end_time": 23.913646048429566,
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-      "duration_frames": 69533,
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-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.623780518692573,
-      "end_time": 29.096040511185045,
-      "duration": 5.472259992492473,
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-      "duration_frames": 87556,
-      "overlap": true,
-      "utterance_id": "5911-48574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-48574.flac |",
-      "real_speaker_id": "5911",
-      "position_frames": 50801
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.00999074825412,
-      "end_time": 32.0,
-      "duration": 1.9900092517458816,
-      "start_frame": 480159,
-      "duration_frames": 31840,
-      "overlap": false,
-      "utterance_id": "100-121674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121674.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 82008
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 17.300763592010426,
-      "start_time": 4.420816534550698
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "start_time": 23.80894165078851
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/cough/0030.wav",
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-      "start_time": 11.181427637602727,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/173/laugh/0043.wav",
-      "duration": 1.28,
-      "start_time": 18.274521953797358,
-      "speaker_id": "173"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/173/cough/0044.wav",
-      "duration": 0.7196153946930315,
-      "start_time": 18.743635083670657,
-      "speaker_id": "173"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5911/laugh/0008.wav",
-      "duration": 0.5895865430268686,
-      "start_time": 22.9111531207384,
-      "speaker_id": "5911"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/laugh/0001.wav",
-      "duration": 1.42,
-      "start_time": 30.58,
-      "speaker_id": "100"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/cough/0059.wav",
-      "duration": 0.5163179170255902,
-      "start_time": 29.346436131031393,
-      "speaker_id": "100"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028247.json b/conversations/conv_028247.json
deleted file mode 100644
index 6a59e5ed0d6636e1c819c6dadd535e1d5301612e..0000000000000000000000000000000000000000
--- a/conversations/conv_028247.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.042480442581232,
-      "duration": 6.042480442581232,
-      "start_frame": 0,
-      "duration_frames": 96679,
-      "overlap": false,
-      "utterance_id": "8312-279790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279790.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.7296402234004296,
-      "end_time": 12.22845344232686,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-283130.flac |",
-      "real_speaker_id": "8273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.542800234460692,
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-      "overlap": true,
-      "utterance_id": "8312-279791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279791.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.45191680322276,
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-      "utterance_id": "8273-114823",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-114823.flac |",
-      "real_speaker_id": "8273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.837787585655683,
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-      "duration": 3.5778535715540816,
-      "start_frame": 397404,
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-      "overlap": false,
-      "utterance_id": "8312-279790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279790.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 96679
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.08152669577554,
-      "end_time": 32.0,
-      "duration": 2.9184733042244595,
-      "start_frame": 465304,
-      "duration_frames": 46695,
-      "overlap": false,
-      "utterance_id": "7125-87278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
-      "real_speaker_id": "7125",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8312/laugh/0049.wav",
-      "duration": 1.32,
-      "start_time": 17.909493460584663,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8273/laugh/0082.wav",
-      "duration": 1.08,
-      "start_time": 19.567713559734774,
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-    {
-      "event_class": "cough",
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-      "start_time": 28.64248621886148,
-      "speaker_id": "7125"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028251.json b/conversations/conv_028251.json
deleted file mode 100644
index 686d02627699e5e4903a7e3e1ed7d4c011dae4f2..0000000000000000000000000000000000000000
--- a/conversations/conv_028251.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "19-227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "duration_frames": 54706,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92139.flac |",
-      "real_speaker_id": "7338",
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-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 83780
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.38049131009871,
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-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 68616
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.037960549027314,
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-      "duration": 4.962039450972686,
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-      "utterance_id": "7338-81521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-81521.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/84654.wav",
-      "duration": 1.7703174603174603,
-      "start_time": 10.963272587623752
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/19/laugh/0001.wav",
-      "duration": 0.7782106511013906,
-      "start_time": 5.4417334490391776,
-      "speaker_id": "19"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028260.json b/conversations/conv_028260.json
deleted file mode 100644
index 547c12e088a70db5eb68f69bbff24d6bedec9b19..0000000000000000000000000000000000000000
--- a/conversations/conv_028260.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.717492383310893,
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-      "utterance_id": "6242-26941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.3234212593790895,
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-      "utterance_id": "5893-54390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5893-54390.flac |",
-      "real_speaker_id": "5893",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.389533252096138,
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-      "duration": 4.685516096795404,
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-      "overlap": true,
-      "utterance_id": "5893-1312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5893-1312.flac |",
-      "real_speaker_id": "5893",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.579867266530073,
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-      "duration": 4.749981305123031,
-      "start_frame": 265277,
-      "duration_frames": 75999,
-      "overlap": false,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.48843803168412,
-      "end_time": 27.443662352696727,
-      "duration": 4.955224321012606,
-      "start_frame": 359815,
-      "duration_frames": 79283,
-      "overlap": false,
-      "utterance_id": "6242-26941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
-      "position_frames": 91479
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.144287827857827,
-      "end_time": 32.0,
-      "duration": 3.855712172142173,
-      "start_frame": 450308,
-      "duration_frames": 61691,
-      "overlap": false,
-      "utterance_id": "6242-26941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6242-26941.flac |",
-      "real_speaker_id": "6242",
-      "position_frames": 170762
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1943/laugh/0079.wav",
-      "duration": 1.48,
-      "start_time": 19.248730976942294,
-      "speaker_id": "1943"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028267.json b/conversations/conv_028267.json
deleted file mode 100644
index 3c0afe8c7e42e46a563899b5d48ddaeed465d84e..0000000000000000000000000000000000000000
--- a/conversations/conv_028267.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.154700553668857,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.502365423102948,
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-      "overlap": false,
-      "utterance_id": "5181-2488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2488.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.6759292620964334,
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-      "utterance_id": "7238-91112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7238-91112.flac |",
-      "real_speaker_id": "7238",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.176783184571988,
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-      "utterance_id": "2136-5147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5147.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.944814643466998,
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-      "utterance_id": "7238-107675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7238-107675.flac |",
-      "real_speaker_id": "7238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "duration_frames": 95399,
-      "overlap": true,
-      "utterance_id": "2136-5140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5140.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "start_frame": 458146,
-      "duration_frames": 40329,
-      "overlap": true,
-      "utterance_id": "5181-2490",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2490.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2136/laugh/0117.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 28.92480682584986,
-      "speaker_id": "5181"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028270.json b/conversations/conv_028270.json
deleted file mode 100644
index bac82b14ff1bc523ebbceb43a458eddb838a0d15..0000000000000000000000000000000000000000
--- a/conversations/conv_028270.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 83302,
-      "overlap": false,
-      "utterance_id": "921-127933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127933.flac |",
-      "real_speaker_id": "921",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.106088199414911,
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-      "overlap": false,
-      "utterance_id": "921-127937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127937.flac |",
-      "real_speaker_id": "921",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1100-124547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-124547.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.49289857422093,
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-      "utterance_id": "921-127937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127937.flac |",
-      "real_speaker_id": "921",
-      "position_frames": 93203
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.65646587367784,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-124547.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 65333
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.667396566435542,
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-      "duration_frames": 42678,
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-      "utterance_id": "921-127937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127937.flac |",
-      "real_speaker_id": "921",
-      "position_frames": 196267
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/921/cough/0099.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1100/laugh/0066.wav",
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-      "start_time": 22.79627627000793,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1100/cough/0061.wav",
-      "duration": 0.987470484650601,
-      "start_time": 28.584879141816856,
-      "speaker_id": "1100"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/921/laugh/0123.wav",
-      "duration": 1.28,
-      "start_time": 27.93101939275614,
-      "speaker_id": "921"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028271.json b/conversations/conv_028271.json
deleted file mode 100644
index 3fb51ac442f6b96b7153e776818190e29f6a3015..0000000000000000000000000000000000000000
--- a/conversations/conv_028271.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.336400800170502,
-      "duration": 3.336400800170502,
-      "start_frame": 0,
-      "duration_frames": 53382,
-      "overlap": false,
-      "utterance_id": "2581-157857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-157857.flac |",
-      "real_speaker_id": "2581",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2854-51658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51658.flac |",
-      "real_speaker_id": "2854",
-      "position_frames": 0
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-      "utterance_id": "323-126408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51658.flac |",
-      "real_speaker_id": "2854",
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_028276.json b/conversations/conv_028276.json
deleted file mode 100644
index 26f0c79e98f5a6761328ed352ca579d486ad37b1..0000000000000000000000000000000000000000
--- a/conversations/conv_028276.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6804-79287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79287.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.531535914204872,
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-      "utterance_id": "7517-100429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100429.flac |",
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-      "speaker_id": 1,
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-      "utterance_id": "7517-100429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100429.flac |",
-      "real_speaker_id": "7517",
-      "position_frames": 86014
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-      "speaker_id": 0,
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-      "utterance_id": "6804-79287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79287.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 87009
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.427382702493492,
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-      "duration": 1.5726172975065076,
-      "start_frame": 486838,
-      "duration_frames": 25161,
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-      "utterance_id": "7517-100442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100442.flac |",
-      "real_speaker_id": "7517",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_15.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6804/laugh/0118.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028284.json b/conversations/conv_028284.json
deleted file mode 100644
index 0a80eac5aa530ef390a16c3d9830a3cc3d70d68a..0000000000000000000000000000000000000000
--- a/conversations/conv_028284.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1084-145077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-145077.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-61313.flac |",
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-      "real_speaker_id": "1084",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-61313.flac |",
-      "real_speaker_id": "6184",
-      "position_frames": 89289
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1977-147187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1977-147187.flac |",
-      "real_speaker_id": "1977",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.2743834685112,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-57832.flac |",
-      "real_speaker_id": "6184",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
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-      "speaker_id": "1977"
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-    {
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-      "duration": 1.26,
-      "start_time": 26.83010954305662,
-      "speaker_id": "6184"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028288.json b/conversations/conv_028288.json
deleted file mode 100644
index 02893eb3551515f5eb70889403b7969bf7c6169b..0000000000000000000000000000000000000000
--- a/conversations/conv_028288.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7177-258977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258977.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7177",
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-      "segment_id": "seg0003",
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-      "position_frames": 83971
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "4110",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028292.json b/conversations/conv_028292.json
deleted file mode 100644
index 5a82e65621c2bd981129975c2010db431fd5a15a..0000000000000000000000000000000000000000
--- a/conversations/conv_028292.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "2234-64149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64149.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3268",
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-      "utterance_id": "7297-275885",
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-      "real_speaker_id": "3268",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7297-92812.flac |",
-      "real_speaker_id": "7297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.10158285878093,
-      "end_time": 32.0,
-      "duration": 3.8984171412190705,
-      "start_frame": 449625,
-      "duration_frames": 62374,
-      "overlap": false,
-      "utterance_id": "3268-59224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3268-59224.flac |",
-      "real_speaker_id": "3268",
-      "position_frames": 74819
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_1.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3268/cough/0086.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3268/cough/0128.wav",
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-      "speaker_id": "3268"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3268/laugh/0102.wav",
-      "duration": 1.2481817701479554,
-      "start_time": 26.71070488659703,
-      "speaker_id": "3268"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028299.json b/conversations/conv_028299.json
deleted file mode 100644
index 4990fbdf6e6871e4383224b6f13bc1e525d2c4f9..0000000000000000000000000000000000000000
--- a/conversations/conv_028299.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.46552434633735,
-      "duration": 3.46552434633735,
-      "start_frame": 0,
-      "duration_frames": 55448,
-      "overlap": false,
-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.800136072111495,
-      "end_time": 8.014055069074905,
-      "duration": 4.213918996963409,
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-      "utterance_id": "5136-5094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-5094.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.336630547767074,
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-      "duration": 6.94401099406501,
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-      "overlap": false,
-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 55448
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.05607616815792,
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-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 166552
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.153228902461755,
-      "end_time": 32.0,
-      "duration": 3.8467710975382445,
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-      "overlap": false,
-      "utterance_id": "5136-5094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-5094.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 67422
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.44,
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-      "speaker_id": "8168"
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 27.433526733225445,
-      "speaker_id": "8168"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5136/cough/0071.wav",
-      "duration": 0.778029336136977,
-      "start_time": 31.221970663863022,
-      "speaker_id": "5136"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028302.json b/conversations/conv_028302.json
deleted file mode 100644
index 0815782dbe888f3b0d0255603d9d1f65ff7fa23a..0000000000000000000000000000000000000000
--- a/conversations/conv_028302.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.476000404815609,
-      "duration": 5.476000404815609,
-      "start_frame": 0,
-      "duration_frames": 87616,
-      "overlap": false,
-      "utterance_id": "1225-129526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129526.flac |",
-      "real_speaker_id": "1225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.697526915352878,
-      "end_time": 11.366467628477718,
-      "duration": 4.668940713124839,
-      "start_frame": 107160,
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-      "overlap": false,
-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.133979611143479,
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-      "duration": 3.472356203264342,
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-      "duration_frames": 55557,
-      "overlap": true,
-      "utterance_id": "1225-129802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129802.flac |",
-      "real_speaker_id": "1225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.355708237372315,
-      "end_time": 21.244589755659455,
-      "duration": 5.88888151828714,
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-      "overlap": false,
-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 74703
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.94840864499879,
-      "end_time": 27.08244866082262,
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-      "overlap": false,
-      "utterance_id": "4583-17998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4583-17998.flac |",
-      "real_speaker_id": "4583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.924724083000903,
-      "end_time": 32.0,
-      "duration": 4.075275916999097,
-      "start_frame": 446795,
-      "duration_frames": 65204,
-      "overlap": false,
-      "utterance_id": "1225-129526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129526.flac |",
-      "real_speaker_id": "1225",
-      "position_frames": 87616
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 19.5510969110775,
-      "start_time": 10.370230631705201
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.1907794547346215,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1225/laugh/0128.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "1225"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6652/laugh/0107.wav",
-      "duration": 1.46,
-      "start_time": 7.219574927092715,
-      "speaker_id": "6652"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4583/cough/0097.wav",
-      "duration": 0.923339035350051,
-      "start_time": 20.905134634695465,
-      "speaker_id": "4583"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1225/laugh/0049.wav",
-      "duration": 1.319628529789107,
-      "start_time": 26.319003124714573,
-      "speaker_id": "1225"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1225/cough/0007.wav",
-      "duration": 1.24,
-      "start_time": 26.56545187514527,
-      "speaker_id": "1225"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028314.json b/conversations/conv_028314.json
deleted file mode 100644
index 015f626ecafc286cc32226aee87dcc170bddcca1..0000000000000000000000000000000000000000
--- a/conversations/conv_028314.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.265590264082586,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 6.589131335305978,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.107542205518571,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-271826.flac |",
-      "real_speaker_id": "8057",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.715544999045512,
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-      "duration_frames": 60867,
-      "overlap": true,
-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 105426
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "3100",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 26.080692514344463,
-      "speaker_id": "8057"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028318.json b/conversations/conv_028318.json
deleted file mode 100644
index fbbbb3e1a43ac27e7620d7febdfefacba35bf111..0000000000000000000000000000000000000000
--- a/conversations/conv_028318.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.525410496849195,
-      "duration": 5.525410496849195,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "345-1120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.715211616657585,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13146.flac |",
-      "real_speaker_id": "4407",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4193-48173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4193-48173.flac |",
-      "real_speaker_id": "4193",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 16.42227538405033,
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-      "overlap": false,
-      "utterance_id": "4407-13146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13146.flac |",
-      "real_speaker_id": "4407",
-      "position_frames": 84260
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.497845410408488,
-      "end_time": 28.2116372128261,
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-      "overlap": false,
-      "utterance_id": "345-1129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1129.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.744721544526662,
-      "end_time": 32.0,
-      "duration": 3.255278455473338,
-      "start_frame": 459915,
-      "duration_frames": 52084,
-      "overlap": false,
-      "utterance_id": "4407-13145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13145.flac |",
-      "real_speaker_id": "4407",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_9.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4407/laugh/0061.wav",
-      "duration": 0.9908063808176538,
-      "start_time": 4.533668055835317,
-      "speaker_id": "4407"
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-    {
-      "event_class": "cough",
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-      "duration": 0.8410681833065548,
-      "start_time": 11.425932049834682,
-      "speaker_id": "4193"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/345/cough/0082.wav",
-      "duration": 0.39122268297113827,
-      "start_time": 28.40663383992997,
-      "speaker_id": "345"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4407/cough/0083.wav",
-      "duration": 0.8977708434729614,
-      "start_time": 31.102229156527038,
-      "speaker_id": "4407"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028319.json b/conversations/conv_028319.json
deleted file mode 100644
index 28e9cf48369b1ee739d6bb84a4ed23c2a9c22abf..0000000000000000000000000000000000000000
--- a/conversations/conv_028319.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7434-75939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-75939.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.801262329871555,
-      "end_time": 8.431909048496596,
-      "duration": 3.6306467186250404,
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-      "overlap": false,
-      "utterance_id": "1161-135206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 8.651341557282947,
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-      "overlap": false,
-      "utterance_id": "7434-96672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
-      "start_time": 15.835927449600042,
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-      "overlap": true,
-      "utterance_id": "7434-75939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-75939.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 58736
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.35066302438964,
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-      "utterance_id": "1161-135206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
-      "position_frames": 58090
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.778009780514815,
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-      "overlap": false,
-      "utterance_id": "5285-53181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5285-53181.flac |",
-      "real_speaker_id": "5285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.069049965232843,
-      "end_time": 32.0,
-      "duration": 0.9309500347671573,
-      "start_frame": 497104,
-      "duration_frames": 14895,
-      "overlap": false,
-      "utterance_id": "7434-96672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 106783
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7434/laugh/0061.wav",
-      "duration": 0.9234843419028176,
-      "start_time": 0,
-      "speaker_id": "7434"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1161/laugh/0048.wav",
-      "duration": 1.68,
-      "start_time": 8.622398049555127,
-      "speaker_id": "1161"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1161/laugh/0111.wav",
-      "duration": 0.7731988374958723,
-      "start_time": 26.022590965358816,
-      "speaker_id": "1161"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028322.json b/conversations/conv_028322.json
deleted file mode 100644
index 9326021416feb6389ef94b803ee102e73ac85025..0000000000000000000000000000000000000000
--- a/conversations/conv_028322.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 87976
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.67193488442538,
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-      "duration": 6.3264322396823145,
-      "start_frame": 266750,
-      "duration_frames": 101222,
-      "overlap": false,
-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 82311
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1384-130461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130461.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.977692263064426,
-      "end_time": 32.0,
-      "duration": 3.0223077369355735,
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-      "duration_frames": 48356,
-      "overlap": false,
-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 183533
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_6.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4652/laugh/0007.wav",
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-      "start_time": 4.059505290032252,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4652/cough/0011.wav",
-      "duration": 0.941524743333144,
-      "start_time": 5.622057485040858,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1006/laugh/0080.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1006/cough/0083.wav",
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-      "speaker_id": "1006"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028325.json b/conversations/conv_028325.json
deleted file mode 100644
index c5a7d4d58af550aab031c94115e675fa2ad9237b..0000000000000000000000000000000000000000
--- a/conversations/conv_028325.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.511175278550542,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3318-164981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164981.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "start_time": 6.232977880697542,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7683-103530",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164981.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 89233
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.66302756230907,
-      "end_time": 31.032553217419018,
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-      "utterance_id": "7683-103530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 62625
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-      "event_class": "laugh",
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-      "start_time": 30.66302756230907,
-      "speaker_id": "7683"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028333.json b/conversations/conv_028333.json
deleted file mode 100644
index 958d8e851598ae6f8e6eb3ac111545ba706138ac..0000000000000000000000000000000000000000
--- a/conversations/conv_028333.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.5509649344051715,
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-      "utterance_id": "1846-144458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1846-144458.flac |",
-      "real_speaker_id": "1846",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 4.998427824123407,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50776.flac |",
-      "real_speaker_id": "5731",
-      "position_frames": 0
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-      "start_time": 10.429270803349024,
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-      "utterance_id": "5731-50778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50778.flac |",
-      "real_speaker_id": "5731",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.484845916630434,
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-      "utterance_id": "1116-137572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-137572.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.071882529579483,
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-      "overlap": true,
-      "utterance_id": "5731-50776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50776.flac |",
-      "real_speaker_id": "5731",
-      "position_frames": 82851
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.750634713432312,
-      "end_time": 32.0,
-      "duration": 5.249365286567688,
-      "start_frame": 428010,
-      "duration_frames": 83989,
-      "overlap": false,
-      "utterance_id": "1846-144458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1846-144458.flac |",
-      "real_speaker_id": "1846",
-      "position_frames": 72815
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
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-      "start_time": 2.2426731496027856
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 0.6044563171398993,
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-      "speaker_id": "1846"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028334.json b/conversations/conv_028334.json
deleted file mode 100644
index d298ced8fb771a9f050175059fd006ced313d6da..0000000000000000000000000000000000000000
--- a/conversations/conv_028334.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6518-66465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66465.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.597648386533825,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66464.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.88823042677377,
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-      "duration_frames": 65828,
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-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 80187
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.848779368014206,
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-      "overlap": false,
-      "utterance_id": "6518-66465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66465.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 105447
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.29529474719745,
-      "end_time": 32.0,
-      "duration": 0.704705252802551,
-      "start_frame": 500724,
-      "duration_frames": 11275,
-      "overlap": false,
-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_2.wav",
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-      "start_time": 15.162361689188458
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6518/laugh/0052.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1495/laugh/0048.wav",
-      "duration": 0.96,
-      "start_time": 12.700543512419445,
-      "speaker_id": "1495"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1495/cough/0037.wav",
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-      "start_time": 6.965011795760857,
-      "speaker_id": "1495"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1495/laugh/0089.wav",
-      "duration": 1.16,
-      "start_time": 23.13872319094003,
-      "speaker_id": "1495"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/laugh/0115.wav",
-      "duration": 0.6904504879187271,
-      "start_time": 31.299940425253457,
-      "speaker_id": "2930"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028335.json b/conversations/conv_028335.json
deleted file mode 100644
index 591ec0749d9d7f7e59a064f4c2f0f156a9d3e2e8..0000000000000000000000000000000000000000
--- a/conversations/conv_028335.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2893-139322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139322.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.94098115144409,
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-      "utterance_id": "122-121729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-121729.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.93152184036047,
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-      "duration_frames": 59646,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.558089994290718,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-121730.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.86810332364262,
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-      "utterance_id": "831-130746",
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-      "real_speaker_id": "831",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139310.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.68413017524191,
-      "end_time": 32.0,
-      "duration": 0.31586982475808867,
-      "start_frame": 506946,
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-      "overlap": false,
-      "utterance_id": "831-130739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 59646
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2893/laugh/0045.wav",
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-      "start_time": 4.184010476046565,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/122/laugh/0095.wav",
-      "duration": 0.7,
-      "start_time": 10.937443036058449,
-      "speaker_id": "122"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/831/laugh/0121.wav",
-      "duration": 1.24,
-      "start_time": 18.601103946932763,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/831/laugh/0038.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "831"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028338.json b/conversations/conv_028338.json
deleted file mode 100644
index 13f8b62e6c70d0ac88e25e4d6b6c43f93447f532..0000000000000000000000000000000000000000
--- a/conversations/conv_028338.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028343.json b/conversations/conv_028343.json
deleted file mode 100644
index 8c1488d375248c688d8833dc2bc5512efdbd30e8..0000000000000000000000000000000000000000
--- a/conversations/conv_028343.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "596",
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-      "position_frames": 161665
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_028355.json b/conversations/conv_028355.json
deleted file mode 100644
index a047f6c1e34014e6d45857e8581ceeb56a7dac4f..0000000000000000000000000000000000000000
--- a/conversations/conv_028355.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "4122",
-      "position_frames": 49351
-    },
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "434",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6947-53263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53263.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
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-      "duration": 1.24,
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-      "speaker_id": "4122"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028359.json b/conversations/conv_028359.json
deleted file mode 100644
index 05347d7253d82f892c45959c97cb70d95f17e7ef..0000000000000000000000000000000000000000
--- a/conversations/conv_028359.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3242-67168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3242-67168.flac |",
-      "real_speaker_id": "3242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123504.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3242-67168.flac |",
-      "real_speaker_id": "3242",
-      "position_frames": 66745
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-    {
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-      "speaker_id": 1,
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-    {
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-    {
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-    {
-      "event_class": "cough",
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-      "speaker_id": "302"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028363.json b/conversations/conv_028363.json
deleted file mode 100644
index c071b1392de19ce83be711bd9c6fe4d057ed19d0..0000000000000000000000000000000000000000
--- a/conversations/conv_028363.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.942669995720575,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.053754976245925,
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-      "utterance_id": "2624-173598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-173598.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-62021.flac |",
-      "real_speaker_id": "6276",
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-      "segment_id": "seg0002",
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-      "start_time": 11.161534734910264,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
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-      "position_frames": 95220
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-      "segment_id": "seg0004",
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-      "position_frames": 71247
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-      "position_frames": 153654
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-  "background_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_028364.json b/conversations/conv_028364.json
deleted file mode 100644
index a4303342bbc838be2c7dc99c8f97b582741bb3d8..0000000000000000000000000000000000000000
--- a/conversations/conv_028364.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127539.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127539.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126277.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 22.68077907632845,
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-      "real_speaker_id": "307",
-      "position_frames": 164984
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126277.flac |",
-      "real_speaker_id": "111",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_028372.json b/conversations/conv_028372.json
deleted file mode 100644
index 8a4a55362318783d0afc199f17e9bba5e6b6c3b4..0000000000000000000000000000000000000000
--- a/conversations/conv_028372.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_028375.json b/conversations/conv_028375.json
deleted file mode 100644
index 213e13b6659ddf6f30f03778e665200adf15084d..0000000000000000000000000000000000000000
--- a/conversations/conv_028375.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_028379.json b/conversations/conv_028379.json
deleted file mode 100644
index 911aaa86718007c03346ca5ad19e630821d6346c..0000000000000000000000000000000000000000
--- a/conversations/conv_028379.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.5307466816759865,
-      "duration": 6.5307466816759865,
-      "start_frame": 0,
-      "duration_frames": 104491,
-      "overlap": false,
-      "utterance_id": "5448-19208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.669460027288171,
-      "end_time": 10.813857770450603,
-      "duration": 4.144397743162433,
-      "start_frame": 106711,
-      "duration_frames": 66310,
-      "overlap": false,
-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.086157548108453,
-      "end_time": 17.41014220515345,
-      "duration": 6.323984657044997,
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-      "duration_frames": 101183,
-      "overlap": false,
-      "utterance_id": "1349-135892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.407940200240024,
-      "end_time": 22.17667593302692,
-      "duration": 3.7687357327868956,
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-      "duration_frames": 60299,
-      "overlap": false,
-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 66310
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.127665164383743,
-      "end_time": 29.045628931975493,
-      "duration": 5.917963767591749,
-      "start_frame": 370042,
-      "duration_frames": 94687,
-      "overlap": false,
-      "utterance_id": "5448-19208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 104491
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.170325667628113,
-      "end_time": 32.0,
-      "duration": 1.8296743323718871,
-      "start_frame": 482725,
-      "duration_frames": 29274,
-      "overlap": false,
-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 126609
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 12.902590405399064,
-      "start_time": 14.349406478076931
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
-      "duration": 3.3721512581790702,
-      "start_time": 8.431682063572005
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
-      "duration": 1.6119213604703422,
-      "start_time": 26.305129165657846
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5448/cough/0059.wav",
-      "duration": 0.8323879978990465,
-      "start_time": 6.596253615419684,
-      "speaker_id": "5448"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1349/laugh/0097.wav",
-      "duration": 1.06,
-      "start_time": 10.843652156835388,
-      "speaker_id": "1349"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1349/laugh/0094.wav",
-      "duration": 1.08,
-      "start_time": 9.711715404105147,
-      "speaker_id": "1349"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5448/laugh/0043.wav",
-      "duration": 0.600048794225547,
-      "start_time": 29.108152248001545,
-      "speaker_id": "5448"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1349/laugh/0114.wav",
-      "duration": 1.5399047308007705,
-      "start_time": 30.46009526919923,
-      "speaker_id": "1349"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028380.json b/conversations/conv_028380.json
deleted file mode 100644
index 6337d49688cd46206c6f6f51f3aa0d37fcbad1c3..0000000000000000000000000000000000000000
--- a/conversations/conv_028380.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.235953407952427,
-      "duration": 5.235953407952427,
-      "start_frame": 0,
-      "duration_frames": 83775,
-      "overlap": false,
-      "utterance_id": "1779-142733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.406552283677745,
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-      "utterance_id": "1777-142745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142745.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.743722256849896,
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-      "duration": 5.602150833577397,
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-      "overlap": false,
-      "utterance_id": "1779-142733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 83775
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.22982880568116,
-      "end_time": 24.3670083120334,
-      "duration": 6.137179506352242,
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-      "duration_frames": 98194,
-      "overlap": false,
-      "utterance_id": "1777-142745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142745.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 79102
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.669913553044122,
-      "end_time": 28.22606348008527,
-      "duration": 3.5561499270411474,
-      "start_frame": 394718,
-      "duration_frames": 56898,
-      "overlap": true,
-      "utterance_id": "1779-142733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 173409
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.332012399741362,
-      "end_time": 32.0,
-      "duration": 2.6679876002586376,
-      "start_frame": 469312,
-      "duration_frames": 42687,
-      "overlap": false,
-      "utterance_id": "4238-12538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12538.flac |",
-      "real_speaker_id": "4238",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 23.445756673808482,
-      "start_time": 7.826099808247126
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_12.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1779/laugh/0022.wav",
-      "duration": 0.76,
-      "start_time": 0,
-      "speaker_id": "1779"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1777/laugh/0084.wav",
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-      "start_time": 4.625329434524345,
-      "speaker_id": "1777"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4238/laugh/0041.wav",
-      "duration": 1.12,
-      "start_time": 29.38217132351861,
-      "speaker_id": "4238"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4238/cough/0018.wav",
-      "duration": 0.5794734483822751,
-      "start_time": 31.420526551617726,
-      "speaker_id": "4238"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028396.json b/conversations/conv_028396.json
deleted file mode 100644
index a348e54b73067fe9b54f17d27b2a0466b00edd5a..0000000000000000000000000000000000000000
--- a/conversations/conv_028396.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7128-84121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7128-84121.flac |",
-      "real_speaker_id": "7128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.509089427544898,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3598-180204.flac |",
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-      "real_speaker_id": "3598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7128-84121.flac |",
-      "real_speaker_id": "7128",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3598-173222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3598-173222.flac |",
-      "real_speaker_id": "3598",
-      "position_frames": 77694
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.177081110433566,
-      "end_time": 32.0,
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-      "utterance_id": "7128-84122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7128-84122.flac |",
-      "real_speaker_id": "7128",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7128/laugh/0073.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7128/cough/0036.wav",
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-      "speaker_id": "7128"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028400.json b/conversations/conv_028400.json
deleted file mode 100644
index 6b4884c4908519a631860f2f67d32ac8ad093cac..0000000000000000000000000000000000000000
--- a/conversations/conv_028400.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 188067
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/laugh/0002.wav",
-      "duration": 1.32,
-      "start_time": 1.8140119531980112,
-      "speaker_id": "3790"
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-      "start_time": 6.3180537404651265,
-      "speaker_id": "4964"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/laugh/0096.wav",
-      "duration": 0.5310600128372871,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/cough/0070.wav",
-      "duration": 0.3033665858650387,
-      "start_time": 22.417671694027785,
-      "speaker_id": "3790"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028416.json b/conversations/conv_028416.json
deleted file mode 100644
index 754d05f6240ff062780e9e113bf734f47c638ca6..0000000000000000000000000000000000000000
--- a/conversations/conv_028416.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5092-28465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.597736027907095,
-      "end_time": 9.441201738992257,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275146.flac |",
-      "real_speaker_id": "7242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.649168661598845,
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-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "5092-28462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28462.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 0
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-      "utterance_id": "7242-275146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275146.flac |",
-      "real_speaker_id": "7242",
-      "position_frames": 61495
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5092-28462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28462.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 91105
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.481825282489893,
-      "end_time": 32.0,
-      "duration": 0.5181747175101066,
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-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 59357
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5092/laugh/0072.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2100/laugh/0086.wav",
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-      "speaker_id": "2100"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028420.json b/conversations/conv_028420.json
deleted file mode 100644
index 55da7c68b221e32ddf152dc1ef357feaf9d4ae23..0000000000000000000000000000000000000000
--- a/conversations/conv_028420.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4225-144132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127537.flac |",
-      "real_speaker_id": "534",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 109181
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 181172
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.727264340388643,
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-      "duration_frames": 58722,
-      "overlap": false,
-      "utterance_id": "534-123059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-123059.flac |",
-      "real_speaker_id": "534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.961902902399743,
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-      "duration": 4.038097097600257,
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-      "overlap": false,
-      "utterance_id": "1384-130459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130459.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4225/laugh/0000.wav",
-      "duration": 1.12,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/534/laugh/0091.wav",
-      "duration": 1.04,
-      "start_time": 24.68288127727386,
-      "speaker_id": "534"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028427.json b/conversations/conv_028427.json
deleted file mode 100644
index 9f28380cb7c6dded9fb5802673ecf0afb1e855b8..0000000000000000000000000000000000000000
--- a/conversations/conv_028427.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "3114-170976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156018.flac |",
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-      "real_speaker_id": "3114",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "3114",
-      "position_frames": 75264
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.179472379837893,
-      "end_time": 32.0,
-      "duration": 1.8205276201621068,
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-      "duration_frames": 29128,
-      "overlap": false,
-      "utterance_id": "2494-156019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156019.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028436.json b/conversations/conv_028436.json
deleted file mode 100644
index a83c2308bb7019ac3d9873062674533d9f239147..0000000000000000000000000000000000000000
--- a/conversations/conv_028436.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7445-94522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7445-94522.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70191.flac |",
-      "real_speaker_id": "6272",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7445-94522.flac |",
-      "real_speaker_id": "7445",
-      "position_frames": 59300
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.390334777701568,
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-      "utterance_id": "7445-94526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7445-94526.flac |",
-      "real_speaker_id": "7445",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.08518875751931,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70171.flac |",
-      "real_speaker_id": "6272",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7445/laugh/0044.wav",
-      "duration": 0.94,
-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7445/laugh/0056.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6272/laugh/0059.wav",
-      "duration": 1.04,
-      "start_time": 26.78448138032378,
-      "speaker_id": "6272"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028437.json b/conversations/conv_028437.json
deleted file mode 100644
index c09287469ff26b7f42620c6c7d8b394f501b9a36..0000000000000000000000000000000000000000
--- a/conversations/conv_028437.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.847935169339712,
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-      "utterance_id": "100-121669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.145732628635969,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3945-890.flac |",
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "100-122655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-122655.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.235411896813076,
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-      "utterance_id": "557-129797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129797.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.95827984925089,
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-      "utterance_id": "100-122655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-122655.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 77311
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.776332486471304,
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-      "duration": 4.223667513528696,
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-      "utterance_id": "100-121674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121674.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 29.57258875674015,
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028441.json b/conversations/conv_028441.json
deleted file mode 100644
index f427144bc002388ece985d2af375ef407c30e581..0000000000000000000000000000000000000000
--- a/conversations/conv_028441.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "1261",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95969.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-50960.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95959.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-131411.flac |",
-      "real_speaker_id": "1261",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6865/laugh/0025.wav",
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-    {
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-      "duration": 1.2381397655118445,
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-      "speaker_id": "1261"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028457.json b/conversations/conv_028457.json
deleted file mode 100644
index 2a46bb82813e6537c00412fed441c32061df7ffa..0000000000000000000000000000000000000000
--- a/conversations/conv_028457.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6286-75355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6286-75355.flac |",
-      "real_speaker_id": "6286",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133217.flac |",
-      "real_speaker_id": "543",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-110520.flac |",
-      "real_speaker_id": "8142",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133212.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.88332421957412,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-3966.flac |",
-      "real_speaker_id": "8142",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 30.569153151657215,
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-      "utterance_id": "8142-276732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-276732.flac |",
-      "real_speaker_id": "8142",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.08,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028461.json b/conversations/conv_028461.json
deleted file mode 100644
index 2ad404dcb156a5fc7ac02093239b1ed27d2c536f..0000000000000000000000000000000000000000
--- a/conversations/conv_028461.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.616816183140383,
-      "duration": 5.616816183140383,
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-      "utterance_id": "2273-152357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2273-152357.flac |",
-      "real_speaker_id": "2273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.126070080282737,
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-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_028477.json b/conversations/conv_028477.json
deleted file mode 100644
index 71aaa461cd0b704278d8b75f108302f22ee4b324..0000000000000000000000000000000000000000
--- a/conversations/conv_028477.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_028482.json b/conversations/conv_028482.json
deleted file mode 100644
index c9e5b2d6548b8e4e8f8329c8d6458d694845882b..0000000000000000000000000000000000000000
--- a/conversations/conv_028482.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_028494.json b/conversations/conv_028494.json
deleted file mode 100644
index 13fd2e7ec70a5e5164c00514717ea9a1861e3c78..0000000000000000000000000000000000000000
--- a/conversations/conv_028494.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4411/cough/0002.wav",
-      "duration": 0.42153448707997154,
-      "start_time": 30.796054718371977,
-      "speaker_id": "4411"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028498.json b/conversations/conv_028498.json
deleted file mode 100644
index ea83abac58c863248090e7fb802498b7a104d2dc..0000000000000000000000000000000000000000
--- a/conversations/conv_028498.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.347218122406371,
-      "duration": 6.347218122406371,
-      "start_frame": 0,
-      "duration_frames": 101555,
-      "overlap": false,
-      "utterance_id": "7988-113323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-113323.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.480072099890531,
-      "end_time": 10.615484917195108,
-      "duration": 4.135412817304577,
-      "start_frame": 103681,
-      "duration_frames": 66166,
-      "overlap": false,
-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.849777877929721,
-      "end_time": 17.23645315139416,
-      "duration": 5.386675273464437,
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-      "duration_frames": 86186,
-      "overlap": false,
-      "utterance_id": "7988-113322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-113322.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.368613376860907,
-      "end_time": 22.870029874980446,
-      "duration": 5.501416498119541,
-      "start_frame": 277897,
-      "duration_frames": 88022,
-      "overlap": false,
-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 66166
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.214818061634567,
-      "end_time": 30.03699520604691,
-      "duration": 6.822177144412343,
-      "start_frame": 371437,
-      "duration_frames": 109154,
-      "overlap": false,
-      "utterance_id": "7988-113322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-113322.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 86186
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.429507021842156,
-      "end_time": 32.0,
-      "duration": 1.5704929781578443,
-      "start_frame": 486872,
-      "duration_frames": 25127,
-      "overlap": false,
-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 154188
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
-      "duration": 19.76790817576186,
-      "start_time": 1.58256403079459
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_2.wav",
-      "duration": 0.3128344671201814,
-      "start_time": 25.201748161444495
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7809/cough/0067.wav",
-      "duration": 0.7619898033285686,
-      "start_time": 10.677416753551617,
-      "speaker_id": "7809"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7988/laugh/0077.wav",
-      "duration": 0.9827430548973498,
-      "start_time": 17.46059696848971,
-      "speaker_id": "7988"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7988/laugh/0029.wav",
-      "duration": 1.5336340181389339,
-      "start_time": 30.163899221603454,
-      "speaker_id": "7988"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7988/cough/0025.wav",
-      "duration": 0.4475508545216298,
-      "start_time": 22.742742803507902,
-      "speaker_id": "7988"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7809/laugh/0092.wav",
-      "duration": 0.9203360981617605,
-      "start_time": 29.289543900893793,
-      "speaker_id": "7809"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028504.json b/conversations/conv_028504.json
deleted file mode 100644
index e099395f8d34aecc20696c23aabf1ee89da1a82a..0000000000000000000000000000000000000000
--- a/conversations/conv_028504.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.784867216010478,
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-      "overlap": false,
-      "utterance_id": "5809-58763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-58763.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.8229752801535035,
-      "end_time": 11.477002519063246,
-      "duration": 3.6540272389097432,
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-      "utterance_id": "5809-51163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51163.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.431523888204488,
-      "end_time": 16.94093009092692,
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-      "overlap": false,
-      "utterance_id": "1754-140639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-140639.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.398217384632094,
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-      "duration_frames": 51520,
-      "overlap": false,
-      "utterance_id": "5809-51163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51163.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 58464
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.82973766980914,
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-      "overlap": false,
-      "utterance_id": "8797-294123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8797-294123.flac |",
-      "real_speaker_id": "8797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.358242418417333,
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-      "duration": 3.3181020400943626,
-      "start_frame": 437731,
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-      "overlap": false,
-      "utterance_id": "5809-51162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51162.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.50735398189552,
-      "end_time": 32.0,
-      "duration": 0.4926460181044803,
-      "start_frame": 504117,
-      "duration_frames": 7882,
-      "overlap": false,
-      "utterance_id": "8797-294123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8797-294123.flac |",
-      "real_speaker_id": "8797",
-      "position_frames": 97660
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5809/laugh/0055.wav",
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-      "speaker_id": "5809"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5809/laugh/0000.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8797/laugh/0043.wav",
-      "duration": 0.8996791030803502,
-      "start_time": 30.48113490539964,
-      "speaker_id": "8797"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028508.json b/conversations/conv_028508.json
deleted file mode 100644
index 17b4df07c21c754e3c4a4bdcf4a1b8f5b3235510..0000000000000000000000000000000000000000
--- a/conversations/conv_028508.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.5807344017263,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5641-39772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-39772.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.323991210816269,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-39772.flac |",
-      "real_speaker_id": "5641",
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-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "125-121342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/125-121342.flac |",
-      "real_speaker_id": "125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.963086642614584,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-39772.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 163205
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.88320322323341,
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-      "utterance_id": "125-121124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/125-121124.flac |",
-      "real_speaker_id": "125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.634141248357352,
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-      "duration": 4.946593153368948,
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-      "duration_frames": 79145,
-      "overlap": false,
-      "utterance_id": "6784-76152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76152.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5641/cough/0107.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/125/cough/0039.wav",
-      "duration": 0.8,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6784/laugh/0075.wav",
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-      "start_time": 25.921696549744258,
-      "speaker_id": "6784"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028512.json b/conversations/conv_028512.json
deleted file mode 100644
index 93d4279e08341e0bda7b9f9df3e427b72030cdcf..0000000000000000000000000000000000000000
--- a/conversations/conv_028512.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.602875712478614,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_frame": 0,
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-      "utterance_id": "5009-29143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.58304555529064,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128276.flac |",
-      "real_speaker_id": "1474",
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-      "real_speaker_id": "8543",
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 106658
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-      "event_class": "cough",
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-      "start_time": 19.834627916770213,
-      "speaker_id": "8543"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1474/laugh/0045.wav",
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-      "start_time": 25.19130279866042,
-      "speaker_id": "1474"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028519.json b/conversations/conv_028519.json
deleted file mode 100644
index 9465fd954c30e3ffe93b3fcbf999b3cd53534222..0000000000000000000000000000000000000000
--- a/conversations/conv_028519.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.234034223476451,
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-      "overlap": false,
-      "utterance_id": "3845-8924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8924.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.328965887881514,
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-      "utterance_id": "4957-36386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-36386.flac |",
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-      "utterance_id": "5233-28389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28389.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-36386.flac |",
-      "real_speaker_id": "4957",
-      "position_frames": 65908
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8894.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "4957-23295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-23295.flac |",
-      "real_speaker_id": "4957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.860606310985894,
-      "end_time": 32.0,
-      "duration": 1.1393936890141063,
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-      "utterance_id": "5233-28389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28389.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 99900
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-      "event_class": "Dog",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.84,
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-      "speaker_id": "3845"
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "5233"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028524.json b/conversations/conv_028524.json
deleted file mode 100644
index 9ff834299c49f90dd3ae8b0991d07a42774117b3..0000000000000000000000000000000000000000
--- a/conversations/conv_028524.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7402-90848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-90848.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.0604210041050255,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3534.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "956-157879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.264568588438877,
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-      "utterance_id": "7402-90848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-90848.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 94604
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.852895515501913,
-      "end_time": 28.30944543007549,
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-      "utterance_id": "956-127932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.004601555870202,
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-      "duration": 2.9953984441297976,
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-      "utterance_id": "7402-90848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-90848.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 147560
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2712/laugh/0077.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7402/laugh/0072.wav",
-      "duration": 1.32,
-      "start_time": 22.866186872672277,
-      "speaker_id": "7402"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028525.json b/conversations/conv_028525.json
deleted file mode 100644
index ff10cddb5b27e6d158c4ec7cff0e15879658bc7a..0000000000000000000000000000000000000000
--- a/conversations/conv_028525.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120457.flac |",
-      "real_speaker_id": "8307",
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-      "real_speaker_id": "4741",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "8307-120456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120456.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.149726848564605,
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-      "utterance_id": "4741-27757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4741-27757.flac |",
-      "real_speaker_id": "4741",
-      "position_frames": 84552
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.486827955276617,
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-      "utterance_id": "3082-165428",
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-      "real_speaker_id": "3082",
-      "position_frames": 82766
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028528.json b/conversations/conv_028528.json
deleted file mode 100644
index 65b8b599d8a5cb3e5eeebb272c941f1d4c7ee3e9..0000000000000000000000000000000000000000
--- a/conversations/conv_028528.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.1806502221764,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8474-281187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8474-281187.flac |",
-      "real_speaker_id": "8474",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
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-    {
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-      "utterance_id": "8474-281187",
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-      "real_speaker_id": "1726",
-      "position_frames": 121013
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4595-45217.flac |",
-      "real_speaker_id": "4595",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1726/laugh/0033.wav",
-      "duration": 1.16,
-      "start_time": 14.474557061962035,
-      "speaker_id": "1726"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1726/laugh/0078.wav",
-      "duration": 0.5151319499566657,
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-      "speaker_id": "1726"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028532.json b/conversations/conv_028532.json
deleted file mode 100644
index 435cc24f44656f365c6272eca5fb8c4fd4308c16..0000000000000000000000000000000000000000
--- a/conversations/conv_028532.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7333-94829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94829.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.446166706675349,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88484.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111612.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88483.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 20.326183000566505,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-40456.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
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-    {
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-      "start_time": 27.20174344607284,
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-      "utterance_id": "7333-94829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94829.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 80587
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-      "event_class": "cough",
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-      "speaker_id": "7333"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028545.json b/conversations/conv_028545.json
deleted file mode 100644
index 4e147f476d25932e0997f79a9d84704eb15365e5..0000000000000000000000000000000000000000
--- a/conversations/conv_028545.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 0
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-      "position_frames": 0
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-      "real_speaker_id": "2582",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 133778
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 54244
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-  ],
-  "background_events": [
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-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028549.json b/conversations/conv_028549.json
deleted file mode 100644
index 9e0d4a2f726b1a8bcdf7e768cefe1dff107dc799..0000000000000000000000000000000000000000
--- a/conversations/conv_028549.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "7498-99157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99157.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
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-    {
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-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 0
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-    {
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-    {
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-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1323/laugh/0016.wav",
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-      "speaker_id": "1323"
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-      "duration": 1.4743216998980637,
-      "start_time": 3.639766850541492,
-      "speaker_id": "1323"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3272/laugh/0041.wav",
-      "duration": 1.308839790162746,
-      "start_time": 22.99307759582101,
-      "speaker_id": "3272"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3272/cough/0053.wav",
-      "duration": 0.9904899919929195,
-      "start_time": 20.67413082981716,
-      "speaker_id": "3272"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028553.json b/conversations/conv_028553.json
deleted file mode 100644
index b36704c8ec051ecaea8d7067d255e822ee31dc14..0000000000000000000000000000000000000000
--- a/conversations/conv_028553.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.467682287153898,
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-      "overlap": false,
-      "utterance_id": "1096-128267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-128267.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.951104713883133,
-      "end_time": 9.975943645112817,
-      "duration": 6.024838931229684,
-      "start_frame": 63217,
-      "duration_frames": 96397,
-      "overlap": false,
-      "utterance_id": "2092-145706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145706.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.580625953851957,
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-      "overlap": false,
-      "utterance_id": "727-124443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.787123345611235,
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-      "duration": 3.9564316867914933,
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-      "overlap": false,
-      "utterance_id": "1096-128264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-128264.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.589558811650626,
-      "end_time": 23.715879308230868,
-      "duration": 4.1263204965802425,
-      "start_frame": 313432,
-      "duration_frames": 66021,
-      "overlap": false,
-      "utterance_id": "727-124443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
-      "position_frames": 62171
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.96275925033165,
-      "end_time": 27.214178049176887,
-      "duration": 3.2514187988452377,
-      "start_frame": 383404,
-      "duration_frames": 52022,
-      "overlap": false,
-      "utterance_id": "1096-17320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-17320.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.873549311901193,
-      "end_time": 32.0,
-      "duration": 4.1264506880988066,
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-      "duration_frames": 66023,
-      "overlap": false,
-      "utterance_id": "727-124443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
-      "position_frames": 128192
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
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-  ],
-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1096/laugh/0093.wav",
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-      "speaker_id": "1096"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2663744365993583,
-      "start_time": 2.6626467574027695,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/727/laugh/0092.wav",
-      "duration": 1.46,
-      "start_time": 11.863458404453695,
-      "speaker_id": "727"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1096/laugh/0023.wav",
-      "duration": 1.52,
-      "start_time": 17.14770447826053,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1096/cough/0011.wav",
-      "duration": 1.16,
-      "start_time": 18.842129582453044,
-      "speaker_id": "1096"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028558.json b/conversations/conv_028558.json
deleted file mode 100644
index aa63b214de442059411712bf08d9897fd7211e8d..0000000000000000000000000000000000000000
--- a/conversations/conv_028558.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.143872847307213,
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-      "overlap": false,
-      "utterance_id": "2262-141716",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141716.flac |",
-      "real_speaker_id": "2262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.563025657839402,
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-      "overlap": false,
-      "utterance_id": "6904-262305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262305.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4660-25046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25046.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.63615938188811,
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-      "start_frame": 282178,
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-      "overlap": false,
-      "utterance_id": "6904-262291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.76218993063561,
-      "end_time": 26.348827250981063,
-      "duration": 4.586637320345453,
-      "start_frame": 348195,
-      "duration_frames": 73386,
-      "overlap": false,
-      "utterance_id": "4660-25054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25054.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.81405963330029,
-      "end_time": 32.0,
-      "duration": 5.185940366699711,
-      "start_frame": 429024,
-      "duration_frames": 82975,
-      "overlap": false,
-      "utterance_id": "6904-262291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 62711
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
-      "duration": 1.7417913832199547,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4660/cough/0037.wav",
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-      "speaker_id": "4660"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6904/laugh/0056.wav",
-      "duration": 0.5348167900286759,
-      "start_time": 19.338502568475818,
-      "speaker_id": "6904"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6904/cough/0069.wav",
-      "duration": 0.7578965353257827,
-      "start_time": 21.72053464285949,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6904/laugh/0037.wav",
-      "duration": 1.16,
-      "start_time": 25.455865314578947,
-      "speaker_id": "6904"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028562.json b/conversations/conv_028562.json
deleted file mode 100644
index acc11ceed4d9bf1b4ac7297a26ef753bbcd422d7..0000000000000000000000000000000000000000
--- a/conversations/conv_028562.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4110-11528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11528.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.545496618931506,
-      "end_time": 9.771942532387932,
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-      "duration_frames": 51623,
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-      "utterance_id": "4969-58757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-58757.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "205-123882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-123882.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.200598692472312,
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-      "utterance_id": "4110-11528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11528.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 89689
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.190337355051856,
-      "end_time": 27.902859401530414,
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-      "utterance_id": "205-157088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-157088.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.865724457065177,
-      "end_time": 32.0,
-      "duration": 3.134275542934823,
-      "start_frame": 461851,
-      "duration_frames": 50148,
-      "overlap": false,
-      "utterance_id": "4969-73975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73975.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4110/laugh/0039.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/205/laugh/0068.wav",
-      "duration": 1.04,
-      "start_time": 28.08914152530742,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/laugh/0021.wav",
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-      "speaker_id": "4969"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028565.json b/conversations/conv_028565.json
deleted file mode 100644
index 480d522200697eb15eb7f0752329e6cd006c8363..0000000000000000000000000000000000000000
--- a/conversations/conv_028565.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.18012904965902,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.095779603439474,
-      "duration": 5.095779603439474,
-      "start_frame": 0,
-      "duration_frames": 81532,
-      "overlap": false,
-      "utterance_id": "6818-76332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.159542081211722,
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-      "overlap": true,
-      "utterance_id": "3796-16816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16816.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.328135864349477,
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-      "utterance_id": "8803-296085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296085.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 81532
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-  "background_events": [],
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-      "speaker_id": "8803"
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-      "speaker_id": "6818"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028569.json b/conversations/conv_028569.json
deleted file mode 100644
index 531a4bf6f3ed0e7e54a30b11f6535290e61b2474..0000000000000000000000000000000000000000
--- a/conversations/conv_028569.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 104376
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-      "speaker_id": 1,
-      "start_time": 17.509392698441857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
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-      "speaker_id": 0,
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-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 173013
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 172436
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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\ No newline at end of file
diff --git a/conversations/conv_028572.json b/conversations/conv_028572.json
deleted file mode 100644
index 233a1f1c441b5cef8384b35ae58007aa6b95dcab..0000000000000000000000000000000000000000
--- a/conversations/conv_028572.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-153219.flac |",
-      "real_speaker_id": "2437",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126294.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-155505.flac |",
-      "real_speaker_id": "2437",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "458-126294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126294.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 89910
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.76671694939349,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-132101.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
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-      "speaker_id": "2437"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028573.json b/conversations/conv_028573.json
deleted file mode 100644
index b69441233305b5b1244c9d33eedd039d1fbd45a6..0000000000000000000000000000000000000000
--- a/conversations/conv_028573.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1263-141777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-141777.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.199719697011226,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-127936.flac |",
-      "real_speaker_id": "231",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-44937.flac |",
-      "real_speaker_id": "4358",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.811469752696848,
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-      "utterance_id": "1263-138246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-138246.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
-    },
-    {
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.198309565798596,
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-      "duration": 4.801690434201404,
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-      "utterance_id": "4358-20034",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-      "speaker_id": "231"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028586.json b/conversations/conv_028586.json
deleted file mode 100644
index 2c7d70cb4ce0528704870c27cf9d3c6153e0f5e2..0000000000000000000000000000000000000000
--- a/conversations/conv_028586.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7302-86814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86814.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.759253189911123,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86814.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-139205.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86815.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.54504304837949,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129976.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.370383811343356,
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-      "duration": 6.6296161886566445,
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-      "utterance_id": "7302-86815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86815.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 81621
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "1154"
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-      "speaker_id": "7302"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028590.json b/conversations/conv_028590.json
deleted file mode 100644
index 0b187ab3ba8063ce9d27bdf68fbde98e650dfcd2..0000000000000000000000000000000000000000
--- a/conversations/conv_028590.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.61920164377987,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "432-122743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122743.flac |",
-      "real_speaker_id": "432",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.569983211494368,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-16012.flac |",
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-      "segment_id": "seg0002",
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-      "start_time": 10.690047583165075,
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-      "utterance_id": "432-122774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122774.flac |",
-      "real_speaker_id": "432",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.69587031445951,
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-      "utterance_id": "432-122774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122774.flac |",
-      "real_speaker_id": "432",
-      "position_frames": 91916
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.74257232500185,
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-      "overlap": true,
-      "utterance_id": "7484-39971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7484-39971.flac |",
-      "real_speaker_id": "7484",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.590996863351887,
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-      "overlap": true,
-      "utterance_id": "432-122745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122745.flac |",
-      "real_speaker_id": "432",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "432"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028601.json b/conversations/conv_028601.json
deleted file mode 100644
index a453386bd53f78be35a63663f435b4365bb837d2..0000000000000000000000000000000000000000
--- a/conversations/conv_028601.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 70775,
-      "overlap": false,
-      "utterance_id": "91-123521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123521.flac |",
-      "real_speaker_id": "91",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.849959701583465,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123498.flac |",
-      "real_speaker_id": "91",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "utterance_id": "7150-118730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-118730.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "91-123498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123498.flac |",
-      "real_speaker_id": "91",
-      "position_frames": 78293
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.242618213051465,
-      "end_time": 28.54473851091343,
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-      "duration_frames": 100833,
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-      "utterance_id": "3271-169289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.66886046459347,
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-      "duration": 3.3311395354065283,
-      "start_frame": 458701,
-      "duration_frames": 53298,
-      "overlap": false,
-      "utterance_id": "7150-111618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-111618.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/91/laugh/0037.wav",
-      "duration": 1.5,
-      "start_time": 0,
-      "speaker_id": "91"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/91/cough/0063.wav",
-      "duration": 0.92,
-      "start_time": 7.117385398737024,
-      "speaker_id": "91"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7150/cough/0097.wav",
-      "duration": 0.6835862253400607,
-      "start_time": 17.305405336077023,
-      "speaker_id": "7150"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7150/laugh/0068.wav",
-      "duration": 1.12,
-      "start_time": 27.32764532614517,
-      "speaker_id": "7150"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7150/cough/0008.wav",
-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "7150"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028617.json b/conversations/conv_028617.json
deleted file mode 100644
index 4fc27713c1da5bffbf48858e01bf84dc1a828737..0000000000000000000000000000000000000000
--- a/conversations/conv_028617.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.143325924097214,
-      "duration": 3.143325924097214,
-      "start_frame": 0,
-      "duration_frames": 50293,
-      "overlap": false,
-      "utterance_id": "5567-22441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22441.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.559722291391811,
-      "end_time": 8.094474417762765,
-      "duration": 4.534752126370953,
-      "start_frame": 56955,
-      "duration_frames": 72556,
-      "overlap": false,
-      "utterance_id": "8545-273050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.526042843525738,
-      "end_time": 13.867505871958757,
-      "duration": 5.341463028433019,
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-      "duration_frames": 85463,
-      "overlap": false,
-      "utterance_id": "5740-97593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97593.flac |",
-      "real_speaker_id": "5740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.206713231897051,
-      "end_time": 19.48310938653369,
-      "duration": 5.27639615463664,
-      "start_frame": 227307,
-      "duration_frames": 84422,
-      "overlap": false,
-      "utterance_id": "8545-273050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 72556
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.75284921724957,
-      "end_time": 24.061472757169557,
-      "duration": 4.3086235399199895,
-      "start_frame": 316045,
-      "duration_frames": 68937,
-      "overlap": false,
-      "utterance_id": "8545-287671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-287671.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.321419961665892,
-      "end_time": 30.854118678704182,
-      "duration": 5.532698717038288,
-      "start_frame": 405142,
-      "duration_frames": 88523,
-      "overlap": false,
-      "utterance_id": "5567-22441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22441.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 50293
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.172483563434003,
-      "end_time": 32.0,
-      "duration": 0.8275164365659968,
-      "start_frame": 498759,
-      "duration_frames": 13240,
-      "overlap": false,
-      "utterance_id": "5740-97610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97610.flac |",
-      "real_speaker_id": "5740",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
-      "duration": 1.0443083900226757,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_11.wav",
-      "duration": 1.0354648526077097,
-      "start_time": 0.9671164729652788
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5740/cough/0083.wav",
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-      "start_time": 7.155515092112433,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8545/laugh/0001.wav",
-      "duration": 1.0786393451354948,
-      "start_time": 22.83999297407907,
-      "speaker_id": "8545"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5740/cough/0109.wav",
-      "duration": 0.6634781271464185,
-      "start_time": 31.33652187285358,
-      "speaker_id": "5740"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028620.json b/conversations/conv_028620.json
deleted file mode 100644
index 69270e5786d314e129bbec35bd86178d0a697cf1..0000000000000000000000000000000000000000
--- a/conversations/conv_028620.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.60124817193123,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_028621.json b/conversations/conv_028621.json
deleted file mode 100644
index f5482761cc16deca4467db3ae1373a76375f2ec6..0000000000000000000000000000000000000000
--- a/conversations/conv_028621.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.703008179667435,
-  "num_speakers": 2,
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-      "real_speaker_id": "8531",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-57188.flac |",
-      "real_speaker_id": "6131",
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\ No newline at end of file
diff --git a/conversations/conv_028626.json b/conversations/conv_028626.json
deleted file mode 100644
index 17ca4b85f3f8a72d6befa697d12910f61bff7ce0..0000000000000000000000000000000000000000
--- a/conversations/conv_028626.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_028630.json b/conversations/conv_028630.json
deleted file mode 100644
index 3794f6ac4e94e6e629ef070e13e74f53acf1ed2c..0000000000000000000000000000000000000000
--- a/conversations/conv_028630.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6914/cough/0047.wav",
-      "duration": 0.7703395409222986,
-      "start_time": 14.376218153619723,
-      "speaker_id": "6914"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7246/cough/0031.wav",
-      "duration": 1.0,
-      "start_time": 21.422801031230204,
-      "speaker_id": "7246"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028637.json b/conversations/conv_028637.json
deleted file mode 100644
index 8c19dab3ea29519640e23401001eb78d11ff3ac1..0000000000000000000000000000000000000000
--- a/conversations/conv_028637.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.9945788151345347,
-      "duration": 3.9945788151345347,
-      "start_frame": 0,
-      "duration_frames": 63913,
-      "overlap": false,
-      "utterance_id": "4799-25949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.817501369885104,
-      "end_time": 10.24728979642743,
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-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.765988586819583,
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-      "duration": 4.103878687660485,
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-      "duration_frames": 65662,
-      "overlap": false,
-      "utterance_id": "8747-293952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.482537278562209,
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-      "duration": 4.18741463091487,
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-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 86876
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.480544886109033,
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-      "duration_frames": 71996,
-      "overlap": true,
-      "utterance_id": "8747-293952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 65662
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.859056675488038,
-      "end_time": 28.967396681216687,
-      "duration": 4.108340005728649,
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-      "overlap": false,
-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 153874
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.68036928212136,
-      "end_time": 32.0,
-      "duration": 2.3196307178786384,
-      "start_frame": 474885,
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-      "utterance_id": "8747-293952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 137658
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5867/cough/0013.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.1616027261468962,
-      "start_time": 28.294931374901342,
-      "speaker_id": "8747"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028640.json b/conversations/conv_028640.json
deleted file mode 100644
index c1e8627f62e10ddeb75ae8d2133901990a0ba599..0000000000000000000000000000000000000000
--- a/conversations/conv_028640.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.860146038816723,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3330-172156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3330-172156.flac |",
-      "real_speaker_id": "3330",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 5.740939158113468,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1188.flac |",
-      "real_speaker_id": "5039",
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-      "utterance_id": "331-884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-884.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.74653338349615,
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-      "utterance_id": "5039-1189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1189.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.938377662773334,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-884.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 85637
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.769544959384284,
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-      "overlap": false,
-      "utterance_id": "5039-1188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1188.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 59527
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.36,
-      "start_time": 26.284551550644544,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5039/cough/0092.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028656.json b/conversations/conv_028656.json
deleted file mode 100644
index 9c6ffe75ca07ace68065c3af91bec0d5bdce11d7..0000000000000000000000000000000000000000
--- a/conversations/conv_028656.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7046-83701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-83701.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "6115-58778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6115-58778.flac |",
-      "real_speaker_id": "6115",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "7046",
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-      "segment_id": "seg0005",
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-      "utterance_id": "6115-58433",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_028660.json b/conversations/conv_028660.json
deleted file mode 100644
index fb17db2fba183b23d583558950ca59c25bf15de0..0000000000000000000000000000000000000000
--- a/conversations/conv_028660.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8629-261139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261139.flac |",
-      "real_speaker_id": "8629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
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-    {
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-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8629/laugh/0119.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "8629"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028667.json b/conversations/conv_028667.json
deleted file mode 100644
index da14aa422505f803e2beb7f9f623ec9217b93b39..0000000000000000000000000000000000000000
--- a/conversations/conv_028667.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.819092171244437,
-      "duration": 4.819092171244437,
-      "start_frame": 0,
-      "duration_frames": 77105,
-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.318231322112826,
-      "end_time": 10.938887339060651,
-      "duration": 5.620656016947825,
-      "start_frame": 85091,
-      "duration_frames": 89930,
-      "overlap": false,
-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.522097063398512,
-      "end_time": 18.07895406855865,
-      "duration": 6.556857005160139,
-      "start_frame": 184353,
-      "duration_frames": 104909,
-      "overlap": false,
-      "utterance_id": "1938-180290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-180290.flac |",
-      "real_speaker_id": "1938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.071214646916395,
-      "end_time": 23.43670909698782,
-      "duration": 5.365494450071425,
-      "start_frame": 289139,
-      "duration_frames": 85847,
-      "overlap": true,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 77105
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.119914084728233,
-      "end_time": 29.02599627948293,
-      "duration": 3.906082194754697,
-      "start_frame": 401918,
-      "duration_frames": 62497,
-      "overlap": false,
-      "utterance_id": "1938-176228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-176228.flac |",
-      "real_speaker_id": "1938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.80200456159484,
-      "end_time": 32.0,
-      "duration": 2.1979954384051617,
-      "start_frame": 476832,
-      "duration_frames": 35167,
-      "overlap": false,
-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 89930
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
-      "duration": 11.774178439243695,
-      "start_time": 15.163213844899644
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
-      "duration": 2.1975276745824375,
-      "start_time": 28.029429919159956
-    },
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
-      "duration": 0.16310657596371883,
-      "start_time": 29.799089563696565
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2127/laugh/0035.wav",
-      "duration": 1.12,
-      "start_time": 0,
-      "speaker_id": "2127"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3001/cough/0070.wav",
-      "duration": 0.9522003452968775,
-      "start_time": 7.406291610094369,
-      "speaker_id": "3001"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1938/laugh/0037.wav",
-      "duration": 1.32,
-      "start_time": 10.190266203898766,
-      "speaker_id": "1938"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3001/laugh/0016.wav",
-      "duration": 1.3355132313913098,
-      "start_time": 29.91309595477202,
-      "speaker_id": "3001"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028671.json b/conversations/conv_028671.json
deleted file mode 100644
index 708fcdeb6caae92692b662587f2fcd95d3e82991..0000000000000000000000000000000000000000
--- a/conversations/conv_028671.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3671877133329584,
-      "duration": 3.3671877133329584,
-      "start_frame": 0,
-      "duration_frames": 53875,
-      "overlap": false,
-      "utterance_id": "7255-291500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-291500.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.70659563878277,
-      "end_time": 8.811546291312627,
-      "duration": 5.104950652529858,
-      "start_frame": 59305,
-      "duration_frames": 81679,
-      "overlap": false,
-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.231542095529989,
-      "end_time": 12.560590868331536,
-      "duration": 3.3290487728015474,
-      "start_frame": 147704,
-      "duration_frames": 53264,
-      "overlap": false,
-      "utterance_id": "7255-281345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-281345.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.795791420017537,
-      "end_time": 16.336961570393896,
-      "duration": 3.5411701503763595,
-      "start_frame": 204732,
-      "duration_frames": 56658,
-      "overlap": false,
-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 81679
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 16.93639453812046,
-      "end_time": 22.489783315523983,
-      "duration": 5.553388777403524,
-      "start_frame": 270982,
-      "duration_frames": 88854,
-      "overlap": false,
-      "utterance_id": "7255-281336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-281336.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.719656114415635,
-      "end_time": 27.31002512363423,
-      "duration": 3.590369009218596,
-      "start_frame": 379514,
-      "duration_frames": 57445,
-      "overlap": false,
-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 138337
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.95271045978356,
-      "end_time": 32.0,
-      "duration": 4.04728954021644,
-      "start_frame": 447243,
-      "duration_frames": 64756,
-      "overlap": false,
-      "utterance_id": "2279-141140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2279-141140.flac |",
-      "real_speaker_id": "2279",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 0.03928399782282259
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
-      "duration": 0.41732426303854875,
-      "start_time": 4.867138768628462
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.673747431909919,
-      "start_time": 9.002344121996137
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7255/cough/0042.wav",
-      "duration": 0.3764032764406373,
-      "start_time": 0,
-      "speaker_id": "7255"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8028/cough/0089.wav",
-      "duration": 0.5824195854187,
-      "start_time": 8.890620357445968,
-      "speaker_id": "8028"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7255/laugh/0027.wav",
-      "duration": 0.9668785186235731,
-      "start_time": 15.835218048657472,
-      "speaker_id": "7255"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2279/laugh/0054.wav",
-      "duration": 0.92,
-      "start_time": 31.08,
-      "speaker_id": "2279"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028676.json b/conversations/conv_028676.json
deleted file mode 100644
index d242c22a91420ca35262ca724ec4a12646e35e77..0000000000000000000000000000000000000000
--- a/conversations/conv_028676.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.006393835628236,
-      "duration": 3.006393835628236,
-      "start_frame": 0,
-      "duration_frames": 48102,
-      "overlap": false,
-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.9811710684395205,
-      "end_time": 9.680272037405247,
-      "duration": 5.699100968965727,
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-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.253289977352148,
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-      "duration": 3.5871077775952385,
-      "start_frame": 164052,
-      "duration_frames": 57393,
-      "overlap": false,
-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 48102
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.399788448510556,
-      "end_time": 19.615303236165346,
-      "duration": 5.21551478765479,
-      "start_frame": 230396,
-      "duration_frames": 83448,
-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 91185
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.38060899375715,
-      "end_time": 23.67565929821187,
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-      "start_frame": 326089,
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-      "overlap": false,
-      "utterance_id": "791-127519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/791-127519.flac |",
-      "real_speaker_id": "791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.225147245166525,
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-      "duration": 5.954547200086125,
-      "start_frame": 387602,
-      "duration_frames": 95272,
-      "overlap": false,
-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.255124086831994,
-      "end_time": 32.0,
-      "duration": 0.7448759131680056,
-      "start_frame": 500081,
-      "duration_frames": 11918,
-      "overlap": false,
-      "utterance_id": "791-127519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/791-127519.flac |",
-      "real_speaker_id": "791",
-      "position_frames": 52720
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3009/cough/0028.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "3009"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3559/laugh/0076.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3009/laugh/0008.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3009/laugh/0104.wav",
-      "duration": 1.36,
-      "start_time": 22.689761387333697,
-      "speaker_id": "3009"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028683.json b/conversations/conv_028683.json
deleted file mode 100644
index 05b84d24324afab35adde8201f78c823d118be22..0000000000000000000000000000000000000000
--- a/conversations/conv_028683.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.370959974637351,
-      "duration": 5.370959974637351,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5043-28401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28401.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.893221929009416,
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-      "duration": 6.246049279588658,
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-      "utterance_id": "4443-24511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-24511.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 52006,
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-      "utterance_id": "4443-11591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-11591.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.90309245435041,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134318.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28402.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_028688.json b/conversations/conv_028688.json
deleted file mode 100644
index a30ed384b41aa72cbd4e10b1725ca70431dac9d7..0000000000000000000000000000000000000000
--- a/conversations/conv_028688.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125951.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-283202.flac |",
-      "real_speaker_id": "8675",
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-      "speaker_id": 2,
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-      "utterance_id": "208-126851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126851.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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\ No newline at end of file
diff --git a/conversations/conv_028695.json b/conversations/conv_028695.json
deleted file mode 100644
index f65d3e602921e72699cc9709f8c919496435a376..0000000000000000000000000000000000000000
--- a/conversations/conv_028695.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "5724",
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-      "real_speaker_id": "6828",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.50745831642139,
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-      "speaker_id": "5724"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028699.json b/conversations/conv_028699.json
deleted file mode 100644
index df5f508f095bba6707eb94a030ea0b3afeaa4479..0000000000000000000000000000000000000000
--- a/conversations/conv_028699.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5652",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "5652",
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-    {
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_028705.json b/conversations/conv_028705.json
deleted file mode 100644
index e76f1c2a89ab7bb63f6f560a9f0832223c7dbff2..0000000000000000000000000000000000000000
--- a/conversations/conv_028705.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "6147",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 15.683264369533525,
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-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.069749449002718,
-      "end_time": 26.4407508076513,
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-      "overlap": false,
-      "utterance_id": "6902-89167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89167.flac |",
-      "real_speaker_id": "6902",
-      "position_frames": 72644
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.3275138791369,
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-      "duration": 4.672486120863098,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 78190
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-      "start_time": 14.739113988113045
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 2.1544025449226964,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6902/laugh/0076.wav",
-      "duration": 0.658730241350548,
-      "start_time": 20.20702429872001,
-      "speaker_id": "6902"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028709.json b/conversations/conv_028709.json
deleted file mode 100644
index 0034df61785638291aef3918310307a8a276eff3..0000000000000000000000000000000000000000
--- a/conversations/conv_028709.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.324729159065168,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.485284416597277,
-      "duration": 5.485284416597277,
-      "start_frame": 0,
-      "duration_frames": 87764,
-      "overlap": false,
-      "utterance_id": "3001-160952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160952.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.6629973426878495,
-      "end_time": 10.164858153477919,
-      "duration": 4.50186081079007,
-      "start_frame": 90607,
-      "duration_frames": 72029,
-      "overlap": false,
-      "utterance_id": "201-122255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-122255.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.302732411826822,
-      "end_time": 14.040200039326749,
-      "duration": 3.737467627499926,
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-      "duration_frames": 59799,
-      "overlap": true,
-      "utterance_id": "3001-160952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160952.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 87764
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.311552422536703,
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-      "duration": 3.3258313769157617,
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-      "duration_frames": 53213,
-      "overlap": false,
-      "utterance_id": "201-127786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.86776853603843,
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-      "duration": 5.296628873615566,
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-      "overlap": false,
-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.03343025092056,
-      "end_time": 29.05072243203971,
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-      "overlap": false,
-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.639775965952264,
-      "end_time": 31.324729159065168,
-      "duration": 2.6849531931129036,
-      "start_frame": 458236,
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-      "overlap": true,
-      "utterance_id": "201-122255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-122255.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 72029
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3001/laugh/0074.wav",
-      "duration": 1.68,
-      "start_time": 24.260846577286724,
-      "speaker_id": "3001"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3001/cough/0066.wav",
-      "duration": 0.3389591675894336,
-      "start_time": 22.217462766308046,
-      "speaker_id": "3001"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028712.json b/conversations/conv_028712.json
deleted file mode 100644
index 9d6997c1264947527a08377117a1063d0250b83f..0000000000000000000000000000000000000000
--- a/conversations/conv_028712.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.377023738642116,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.474446882785455,
-      "duration": 5.474446882785455,
-      "start_frame": 0,
-      "duration_frames": 87591,
-      "overlap": false,
-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.2678276320673145,
-      "end_time": 11.249023399902491,
-      "duration": 4.981195767835177,
-      "start_frame": 100285,
-      "duration_frames": 79699,
-      "overlap": false,
-      "utterance_id": "7649-96667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96667.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.815114263624851,
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-      "duration_frames": 110292,
-      "overlap": false,
-      "utterance_id": "3381-9921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.9346111871481,
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-      "utterance_id": "7649-96682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96682.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.943424182197035,
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-      "duration": 4.692233050714717,
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-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 87591
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 1.8403221218643857,
-      "start_frame": 472587,
-      "duration_frames": 29445,
-      "overlap": true,
-      "utterance_id": "3381-9921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
-      "position_frames": 110292
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 24.358604782976627,
-      "start_time": 5.631546432443317
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 2.247641723356009,
-      "start_time": 5.369957791031405
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-    {
-      "event_class": "Dog",
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-      "duration": 0.6236734693877551,
-      "start_time": 18.69416607580656
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7649/laugh/0062.wav",
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-      "start_time": 6.427626986775971,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3381/laugh/0015.wav",
-      "duration": 1.14,
-      "start_time": 16.950681799328304,
-      "speaker_id": "3381"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3381/cough/0011.wav",
-      "duration": 0.9,
-      "start_time": 18.763772377028534,
-      "speaker_id": "3381"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1166/cough/0003.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3381/laugh/0007.wav",
-      "duration": 0.7457006262077797,
-      "start_time": 31.25429937379222,
-      "speaker_id": "3381"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028713.json b/conversations/conv_028713.json
deleted file mode 100644
index abf2f0d45d01b339386b82751917fdca825c5134..0000000000000000000000000000000000000000
--- a/conversations/conv_028713.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.465604227860058,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7278-104730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-104730.flac |",
-      "real_speaker_id": "7278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.295573642951004,
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-      "utterance_id": "613-132862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-132862.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.882403498839137,
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-      "overlap": true,
-      "utterance_id": "5583-41259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41259.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.712338304909899,
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-      "utterance_id": "7278-246956",
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-      "real_speaker_id": "7278",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5583-41919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41919.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.70144570477036,
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-      "overlap": true,
-      "utterance_id": "7278-246956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-246956.flac |",
-      "real_speaker_id": "7278",
-      "position_frames": 53083
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.43936420014393,
-      "end_time": 32.0,
-      "duration": 2.560635799856069,
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-      "utterance_id": "5583-41259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41259.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 58970
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.159590485606157,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_15.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5583/cough/0016.wav",
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-      "speaker_id": "5583"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028722.json b/conversations/conv_028722.json
deleted file mode 100644
index 3bfb8085cd36df5d6ab2c1f95f91bd043bf3f736..0000000000000000000000000000000000000000
--- a/conversations/conv_028722.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-246946.flac |",
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-      "position_frames": 0
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-      "start_time": 0,
-      "speaker_id": "2021"
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-      "event_class": "laugh",
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-      "speaker_id": "2021"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028725.json b/conversations/conv_028725.json
deleted file mode 100644
index e3114adde7f3bbb5489cf9aceaf71bd3dbb39ec5..0000000000000000000000000000000000000000
--- a/conversations/conv_028725.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7925-271896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-271896.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.615914724565084,
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-      "utterance_id": "3879-174923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-174923.flac |",
-      "real_speaker_id": "3879",
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-      "utterance_id": "7925-114279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-114279.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "3879-173592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7925-111766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-111766.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.426606027264683,
-      "end_time": 32.0,
-      "duration": 3.5733939727353174,
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-      "duration_frames": 57174,
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-      "utterance_id": "3679-159363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
-      "real_speaker_id": "3679",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-      "duration": 1.16,
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-      "speaker_id": "3679"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028729.json b/conversations/conv_028729.json
deleted file mode 100644
index 9a1d15a84704b14913b359038afc816cfcdb49fd..0000000000000000000000000000000000000000
--- a/conversations/conv_028729.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
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-    {
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-      "utterance_id": "19-227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 67663
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.50974491193498,
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-      "duration_frames": 97664,
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-      "utterance_id": "497-125118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
-      "real_speaker_id": "497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.130112789084798,
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-      "utterance_id": "1699-141159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141159.flac |",
-      "real_speaker_id": "1699",
-      "position_frames": 69676
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "19-227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 137513
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9863836078706721,
-      "start_time": 29.722266842130992,
-      "speaker_id": "19"
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\ No newline at end of file
diff --git a/conversations/conv_028733.json b/conversations/conv_028733.json
deleted file mode 100644
index eb558a6ff7e20121ed4391c08ba9cda82446301e..0000000000000000000000000000000000000000
--- a/conversations/conv_028733.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "duration_frames": 77770,
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-      "utterance_id": "8635-295761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295761.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.720601622279847,
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-      "utterance_id": "3780-177782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177782.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "8635",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.537023297426494,
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-      "utterance_id": "1027-125140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "8635"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3780/laugh/0002.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1027/laugh/0079.wav",
-      "duration": 1.2,
-      "start_time": 29.595203182740914,
-      "speaker_id": "1027"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028734.json b/conversations/conv_028734.json
deleted file mode 100644
index 1a7386e1368e4a5918ec03f0cf3eaa2a9bc10e06..0000000000000000000000000000000000000000
--- a/conversations/conv_028734.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_028744.json b/conversations/conv_028744.json
deleted file mode 100644
index 6d68cbed9d66eca6df59fdb13ec98ca688df925a..0000000000000000000000000000000000000000
--- a/conversations/conv_028744.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_028748.json b/conversations/conv_028748.json
deleted file mode 100644
index 900b1bcf3c1bad59cc212e00ca3b45dbc2d92ec8..0000000000000000000000000000000000000000
--- a/conversations/conv_028748.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_028749.json b/conversations/conv_028749.json
deleted file mode 100644
index eacfc0f2123abff0e28cd43d7690491e04694813..0000000000000000000000000000000000000000
--- a/conversations/conv_028749.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
-      "duration": 0.9175736961451247,
-      "start_time": 6.470862195363283
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8194/laugh/0065.wav",
-      "duration": 0.96,
-      "start_time": 8.383371166218707,
-      "speaker_id": "8194"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7737/cough/0077.wav",
-      "duration": 1.24,
-      "start_time": 19.88893316624946,
-      "speaker_id": "7737"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/834/laugh/0062.wav",
-      "duration": 1.2,
-      "start_time": 25.19898722725403,
-      "speaker_id": "834"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/834/cough/0057.wav",
-      "duration": 0.5118694236584854,
-      "start_time": 21.621212734534524,
-      "speaker_id": "834"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028752.json b/conversations/conv_028752.json
deleted file mode 100644
index f7523b26fb756525abcbf0654d13420105c97a3b..0000000000000000000000000000000000000000
--- a/conversations/conv_028752.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.9856592855921162,
-      "duration": 3.9856592855921162,
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-      "duration_frames": 63770,
-      "overlap": false,
-      "utterance_id": "100-122655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-122655.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.274227421839244,
-      "end_time": 8.294446660135002,
-      "duration": 4.0202192382957564,
-      "start_frame": 68387,
-      "duration_frames": 64323,
-      "overlap": false,
-      "utterance_id": "100-122655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-122655.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 63770
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.626517299427153,
-      "end_time": 12.951318194322534,
-      "duration": 4.324800894895381,
-      "start_frame": 138024,
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-      "overlap": false,
-      "utterance_id": "6687-119384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119384.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.152624520105753,
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-      "duration_frames": 110126,
-      "overlap": false,
-      "utterance_id": "7276-90847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-90847.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.653308398552063,
-      "end_time": 23.266592600135766,
-      "duration": 3.6132842015837014,
-      "start_frame": 314452,
-      "duration_frames": 57812,
-      "overlap": true,
-      "utterance_id": "6687-119384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119384.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 69196
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.745311894619714,
-      "end_time": 30.65738222009533,
-      "duration": 5.912070325475614,
-      "start_frame": 395924,
-      "duration_frames": 94593,
-      "overlap": false,
-      "utterance_id": "7276-92427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.57729941436877,
-      "end_time": 32.0,
-      "duration": 0.4227005856312296,
-      "start_frame": 505236,
-      "duration_frames": 6763,
-      "overlap": false,
-      "utterance_id": "100-121669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/laugh/0013.wav",
-      "duration": 1.08,
-      "start_time": 8.427509054553411,
-      "speaker_id": "100"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/cough/0061.wav",
-      "duration": 0.48480993861249955,
-      "start_time": 3.6362544842955535,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7276/cough/0002.wav",
-      "duration": 0.9877342831130314,
-      "start_time": 20.181967317115376,
-      "speaker_id": "7276"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6687/laugh/0066.wav",
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-      "duration": 0.8603085980659118,
-      "start_time": 20.07182968432914,
-      "speaker_id": "6687"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028763.json b/conversations/conv_028763.json
deleted file mode 100644
index f66b6382e791af68d1e7d4461b4377ecada1fd96..0000000000000000000000000000000000000000
--- a/conversations/conv_028763.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.485578810840005,
-      "duration": 4.485578810840005,
-      "start_frame": 0,
-      "duration_frames": 71769,
-      "overlap": false,
-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.379164662047374,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280359.flac |",
-      "real_speaker_id": "8108",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.200925001546192,
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-      "overlap": true,
-      "utterance_id": "8193-116804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.973156198630733,
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-      "duration": 5.69490183493571,
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-      "overlap": false,
-      "utterance_id": "8108-280359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280359.flac |",
-      "real_speaker_id": "8108",
-      "position_frames": 82754
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.119709731106706,
-      "end_time": 30.399190627976164,
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-      "start_frame": 385915,
-      "duration_frames": 100471,
-      "overlap": true,
-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.30099675427018,
-      "end_time": 32.0,
-      "duration": 0.6990032457298199,
-      "start_frame": 500815,
-      "duration_frames": 11184,
-      "overlap": false,
-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 71769
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8108/laugh/0016.wav",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8671/laugh/0044.wav",
-      "duration": 1.2965099732571443,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8193/laugh/0115.wav",
-      "duration": 1.0126197334221867,
-      "start_time": 30.987380266577812,
-      "speaker_id": "8193"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028764.json b/conversations/conv_028764.json
deleted file mode 100644
index 7f02f023d533948f153b244a5c2879cab93ed495..0000000000000000000000000000000000000000
--- a/conversations/conv_028764.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 91885
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1290",
-      "position_frames": 74867
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6196",
-      "position_frames": 159280
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 5.380712688659365,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 145796
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028765.json b/conversations/conv_028765.json
deleted file mode 100644
index 423405aa558811d7671fa1217026ce920ac89370..0000000000000000000000000000000000000000
--- a/conversations/conv_028765.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "duration": 3.9211993859971654,
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-      "utterance_id": "4681-13056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4681-13056.flac |",
-      "real_speaker_id": "4681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
-      "real_speaker_id": "201",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-43305.flac |",
-      "real_speaker_id": "5935",
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-      "utterance_id": "5935-43322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-43322.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 97302
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
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-      "speaker_id": "201"
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-      "event_class": "laugh",
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-      "duration": 1.24,
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-      "speaker_id": "5935"
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-      "duration": 1.32,
-      "start_time": 28.439786572514336,
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-      "event_class": "cough",
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-      "speaker_id": "5935"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028768.json b/conversations/conv_028768.json
deleted file mode 100644
index bea50909869cd37ff03b62c66d68d593b2ad8d23..0000000000000000000000000000000000000000
--- a/conversations/conv_028768.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.968495711673956,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.390949379581044,
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-      "overlap": false,
-      "utterance_id": "2309-152159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152159.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.241224756691908,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-167347.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "8195-117382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 83946
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-      "speaker_id": 1,
-      "start_time": 26.238767512821845,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152159.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 70255
-    }
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-  "background_events": [
-    {
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "2309"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028772.json b/conversations/conv_028772.json
deleted file mode 100644
index 4824479141bd1b37450060be57d83075ed54c72d..0000000000000000000000000000000000000000
--- a/conversations/conv_028772.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.26408418413984,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126305.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126305.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130503.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126305.flac |",
-      "real_speaker_id": "458",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130503.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_028775.json b/conversations/conv_028775.json
deleted file mode 100644
index baf0433a03b82cce407344757c7261eaab1a18fa..0000000000000000000000000000000000000000
--- a/conversations/conv_028775.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.76704866318947,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
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-      "utterance_id": "8666-293943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293943.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5933-73033",
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-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.063752475777108,
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-      "overlap": false,
-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028787.json b/conversations/conv_028787.json
deleted file mode 100644
index 48e163d15500acc90fe647b9cee2360ddb09b06d..0000000000000000000000000000000000000000
--- a/conversations/conv_028787.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
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-      "position_frames": 79209
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "speaker_id": "1058"
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-      "speaker_id": "1058"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028791.json b/conversations/conv_028791.json
deleted file mode 100644
index 739f0709d70c9fe01440ba5e5134e8e9be6b3800..0000000000000000000000000000000000000000
--- a/conversations/conv_028791.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64733.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.6404086190458007,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-22176.flac |",
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-      "utterance_id": "4859-26870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-26870.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 20.091597088759162,
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-      "utterance_id": "6332-64733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64733.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 52411
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-    {
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-      "utterance_id": "4859-29340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-29340.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.528835271358904,
-      "end_time": 32.0,
-      "duration": 0.4711647286410958,
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-      "duration_frames": 7538,
-      "overlap": false,
-      "utterance_id": "3925-57660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57660.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "3925"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_028800.json b/conversations/conv_028800.json
deleted file mode 100644
index 5b6edc293cb65ec8af09f8e1b20d48298cc45e91..0000000000000000000000000000000000000000
--- a/conversations/conv_028800.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.07560132270878,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 0
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-      "real_speaker_id": "1280",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 76393
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-      "start_time": 17.8889744344314,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-143268.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 95122
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.58024599604873,
-      "end_time": 31.07560132270878,
-      "duration": 5.49535532666005,
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-      "duration_frames": 87925,
-      "overlap": false,
-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 147009
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1721/laugh/0096.wav",
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-      "duration": 1.36,
-      "start_time": 10.389105685369648,
-      "speaker_id": "1721"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1280/cough/0041.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "1721"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028816.json b/conversations/conv_028816.json
deleted file mode 100644
index 65d3be25d3e657671a91a4b779a105a8e6122f2f..0000000000000000000000000000000000000000
--- a/conversations/conv_028816.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3871-692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 62978
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-693.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 80561
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.518506027739484,
-      "end_time": 29.486765059689397,
-      "duration": 3.9682590319499136,
-      "start_frame": 408296,
-      "duration_frames": 63492,
-      "overlap": false,
-      "utterance_id": "4211-3820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3820.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.059032391445292,
-      "end_time": 32.0,
-      "duration": 1.9409676085547076,
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-      "utterance_id": "1992-141719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 151484
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-  "paralinguistic_events": [
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-    {
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-      "start_time": 24.66284780899911,
-      "speaker_id": "4211"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028820.json b/conversations/conv_028820.json
deleted file mode 100644
index 445536a5cfcb1ecd714052ad2379183e05609a8e..0000000000000000000000000000000000000000
--- a/conversations/conv_028820.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "duration": 6.348312295709562,
-      "start_frame": 0,
-      "duration_frames": 101572,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 176838
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8718-295445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295445.flac |",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4742/laugh/0065.wav",
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-      "start_time": 22.036537046274105,
-      "speaker_id": "8718"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028821.json b/conversations/conv_028821.json
deleted file mode 100644
index d29b2c0c210d8d7cdfaf6d6b69d2dd5b93816c90..0000000000000000000000000000000000000000
--- a/conversations/conv_028821.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.335317553809837,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 3.0235499471828273,
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-      "overlap": false,
-      "utterance_id": "318-124224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8144753852279316,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124227.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 0
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-      "utterance_id": "1239-139609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1239-139609.flac |",
-      "real_speaker_id": "1239",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.640725189610606,
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-      "duration": 5.716286680899437,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 48376
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.689183235274832,
-      "end_time": 25.831125706519174,
-      "duration": 6.14194247124434,
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-      "duration_frames": 98271,
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-      "utterance_id": "584-124227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124227.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 89301
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "318-124224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 139836
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/584/laugh/0017.wav",
-      "duration": 1.32,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/318/cough/0044.wav",
-      "duration": 1.24,
-      "start_time": 24.740117110472806,
-      "speaker_id": "318"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028836.json b/conversations/conv_028836.json
deleted file mode 100644
index 2ac28207debbc2bc5a79e113ecc449f1c94c0ec2..0000000000000000000000000000000000000000
--- a/conversations/conv_028836.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "8058-99402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
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-      "real_speaker_id": "8058",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.749144744988204,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 94452
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.171061024047436,
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-      "duration": 0.828938975952564,
-      "start_frame": 498736,
-      "duration_frames": 13263,
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-      "utterance_id": "4719-25766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 139590
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4719/laugh/0099.wav",
-      "duration": 1.2,
-      "start_time": 22.062243660220343,
-      "speaker_id": "4719"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028841.json b/conversations/conv_028841.json
deleted file mode 100644
index 4a1295ae4839546a94dd9507d80f6875520efad5..0000000000000000000000000000000000000000
--- a/conversations/conv_028841.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.7655605287087415,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2299-6524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6524.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.404102178292853,
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-      "utterance_id": "6378-61780",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61780.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.662063483886378,
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-      "duration_frames": 86361,
-      "overlap": true,
-      "utterance_id": "7463-99912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-99912.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.394628823275866,
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-      "overlap": false,
-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 100893
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.063663423468213,
-      "end_time": 32.0,
-      "duration": 1.9363365765317866,
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-      "duration_frames": 30981,
-      "overlap": false,
-      "utterance_id": "2299-6524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6524.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 76248
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "start_time": 1.7469635441946574
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6378/laugh/0008.wav",
-      "duration": 1.0,
-      "start_time": 10.35006287971412,
-      "speaker_id": "6378"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028857.json b/conversations/conv_028857.json
deleted file mode 100644
index bd41eb70e82913004ed58d658e3d3ad45459b5df..0000000000000000000000000000000000000000
--- a/conversations/conv_028857.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24731.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028861.json b/conversations/conv_028861.json
deleted file mode 100644
index 9fa9b41ce9794d82e8962123997d5166c266b36f..0000000000000000000000000000000000000000
--- a/conversations/conv_028861.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-  "total_duration": 31.549676987006272,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3381-9921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
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-      "real_speaker_id": "4116",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3381-9921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
-      "position_frames": 106740
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "3381"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028876.json b/conversations/conv_028876.json
deleted file mode 100644
index d12b85236748fb834572e9b4b396625daa641740..0000000000000000000000000000000000000000
--- a/conversations/conv_028876.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-      "utterance_id": "8534-216564",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-37119.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028877.json b/conversations/conv_028877.json
deleted file mode 100644
index b6786f7eb3f756418de99c01584e79d012887e06..0000000000000000000000000000000000000000
--- a/conversations/conv_028877.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-    {
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-  "foreground_events": [
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-      "duration": 0.6666910407171946,
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-      "speaker_id": "7383"
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-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "1653"
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-      "speaker_id": "1653"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_028882.json b/conversations/conv_028882.json
deleted file mode 100644
index a9b945d3361fa496b8060bc2405562c7a5f37f76..0000000000000000000000000000000000000000
--- a/conversations/conv_028882.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.719935720035284,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5519457562755377,
-      "duration": 3.5519457562755377,
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-      "duration_frames": 56831,
-      "overlap": false,
-      "utterance_id": "2156-25563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-25563.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.866205354857101,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.47645846860626,
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-      "utterance_id": "245-122648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 68312
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.937851707338687,
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-      "utterance_id": "2156-17942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-17942.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.248820519832705,
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-      "utterance_id": "2156-82458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-82458.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.512738766009,
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-      "utterance_id": "2156-25563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-25563.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 56831
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.36324491470585,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-154838.flac |",
-      "real_speaker_id": "2532",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "speaker_id": "245"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028894.json b/conversations/conv_028894.json
deleted file mode 100644
index 66e3900ec9cbf1dfa4430b4b5f87f2b420ac6169..0000000000000000000000000000000000000000
--- a/conversations/conv_028894.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-893.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.32585850407186,
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-      "utterance_id": "2517-135227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135227.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
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-      "utterance_id": "4352-893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-893.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 78856
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.6195438290226214,
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-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 75399
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.32,
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-    {
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-      "speaker_id": "2517"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028898.json b/conversations/conv_028898.json
deleted file mode 100644
index 549fd1e6d551205fa6d8eaa66fe72fa676135a3d..0000000000000000000000000000000000000000
--- a/conversations/conv_028898.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5810-8689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8689.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 0
-    },
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-      "real_speaker_id": "5810",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.057053413889008,
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-      "utterance_id": "2012-139358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139358.flac |",
-      "real_speaker_id": "2012",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "2012",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_028904.json b/conversations/conv_028904.json
deleted file mode 100644
index 798ef7b98af174a58729bfe0c4588661fe2f149e..0000000000000000000000000000000000000000
--- a/conversations/conv_028904.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1867-154071",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1867-154071.flac |",
-      "real_speaker_id": "1867",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1867-154075",
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-      "speaker_id": "6173"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028908.json b/conversations/conv_028908.json
deleted file mode 100644
index 23b8a8af17a4ad217eac5ac2adccbe4c48d71e12..0000000000000000000000000000000000000000
--- a/conversations/conv_028908.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "start_time": 0.0,
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-      "real_speaker_id": "1100",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.1599116622034815,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-135264.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 79650
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-    {
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-      "speaker_id": 1,
-      "start_time": 18.523939649966554,
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-      "duration": 4.57727748091694,
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-      "duration_frames": 73236,
-      "overlap": true,
-      "utterance_id": "6746-72302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6746-72302.flac |",
-      "real_speaker_id": "6746",
-      "position_frames": 110727
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "4064-12118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-12118.flac |",
-      "real_speaker_id": "4064",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.512885512258766,
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-      "duration": 3.487114487741234,
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-      "duration_frames": 55793,
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-      "utterance_id": "1100-135264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-135264.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 175431
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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\ No newline at end of file
diff --git a/conversations/conv_028912.json b/conversations/conv_028912.json
deleted file mode 100644
index 39e752ce7b1b176bd968ad2ffc2d997aa5dbc66f..0000000000000000000000000000000000000000
--- a/conversations/conv_028912.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3703-71550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71550.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1382-130492.flac |",
-      "real_speaker_id": "1382",
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-      "utterance_id": "1382-130516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1382-130516.flac |",
-      "real_speaker_id": "1382",
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-      "speaker_id": 1,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 81284
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71550.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 92832
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.169087274856047,
-      "end_time": 32.0,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 160286
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 0.88,
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-      "speaker_id": "1563"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028919.json b/conversations/conv_028919.json
deleted file mode 100644
index d0f12979c21facb8b1165a49cdeba108e63342a8..0000000000000000000000000000000000000000
--- a/conversations/conv_028919.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "224-133227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-133227.flac |",
-      "real_speaker_id": "224",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-130125.flac |",
-      "real_speaker_id": "3889",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-128660.flac |",
-      "real_speaker_id": "224",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-130125.flac |",
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-      "position_frames": 60983
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "224-128660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-128660.flac |",
-      "real_speaker_id": "224",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4545-9166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028924.json b/conversations/conv_028924.json
deleted file mode 100644
index 7ab069c6f8e42c1cdd2a539e3d717c5b3f9f0072..0000000000000000000000000000000000000000
--- a/conversations/conv_028924.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.693702973421413,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "real_speaker_id": "7644",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3294-167597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167597.flac |",
-      "real_speaker_id": "3294",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "speaker_id": "3294"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028928.json b/conversations/conv_028928.json
deleted file mode 100644
index 882661d93ed2c16ca90f871e7ea2fd6500d38023..0000000000000000000000000000000000000000
--- a/conversations/conv_028928.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3214-167607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167607.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.4765913038435965,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167607.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 74058
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-      "real_speaker_id": "1098",
-      "position_frames": 0
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-      "start_time": 15.871820737940974,
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-      "utterance_id": "4192-5332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4192-5332.flac |",
-      "real_speaker_id": "4192",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.52112812779893,
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-      "duration_frames": 59975,
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-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 79033
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.452207385061868,
-      "end_time": 30.09036968549423,
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-      "utterance_id": "4192-5332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4192-5332.flac |",
-      "real_speaker_id": "4192",
-      "position_frames": 80145
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.233492370350394,
-      "end_time": 32.0,
-      "duration": 1.766507629649606,
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-      "utterance_id": "3214-167606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167606.flac |",
-      "real_speaker_id": "3214",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_028932.json b/conversations/conv_028932.json
deleted file mode 100644
index 58d6623ee83d198a233975ce20c54a7b01e6629d..0000000000000000000000000000000000000000
--- a/conversations/conv_028932.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-134775.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 100493
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 90330
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19639.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.24,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.6922478409158392,
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-      "speaker_id": "5993"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028945.json b/conversations/conv_028945.json
deleted file mode 100644
index eb1f99dab44850de5faef745e7be94efa7cfa55c..0000000000000000000000000000000000000000
--- a/conversations/conv_028945.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3717-21493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21493.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
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-      "real_speaker_id": "6411",
-      "position_frames": 60006
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-      "real_speaker_id": "3717",
-      "position_frames": 111833
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "6224",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3717-178149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-178149.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3717/laugh/0104.wav",
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-      "event_class": "laugh",
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-      "start_time": 30.92,
-      "speaker_id": "3717"
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-}
\ No newline at end of file
diff --git a/conversations/conv_028949.json b/conversations/conv_028949.json
deleted file mode 100644
index cff609e2419304b739ed1df2cb04cc5fe5d87d68..0000000000000000000000000000000000000000
--- a/conversations/conv_028949.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2341-151701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2341-151701.flac |",
-      "real_speaker_id": "2341",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-8371.flac |",
-      "real_speaker_id": "4480",
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-      "real_speaker_id": "2341",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.31610020892402,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2341-163408.flac |",
-      "real_speaker_id": "2341",
-      "position_frames": 86887
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.92643733099594,
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-      "utterance_id": "2498-134816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134816.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.424711338501247,
-      "end_time": 32.0,
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-      "utterance_id": "4480-8371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-8371.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 62543
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
-      "duration": 1.8354490283888887,
-      "start_time": 28.586986231162317
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2341/cough/0079.wav",
-      "duration": 0.8997287358477082,
-      "start_time": 7.947410166358281,
-      "speaker_id": "2341"
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-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 14.012215547119018,
-      "speaker_id": "2341"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028953.json b/conversations/conv_028953.json
deleted file mode 100644
index fb1d9c618067befae5c466e3429e5afad1320859..0000000000000000000000000000000000000000
--- a/conversations/conv_028953.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.894435980800631,
-      "duration": 5.894435980800631,
-      "start_frame": 0,
-      "duration_frames": 94310,
-      "overlap": false,
-      "utterance_id": "7138-73705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-73705.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.047916523752451,
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-      "duration": 5.717728477122028,
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-      "duration_frames": 91483,
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-      "utterance_id": "303-123500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123500.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.85604115510725,
-      "end_time": 15.621809787685834,
-      "duration": 3.765768632578582,
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-      "overlap": true,
-      "utterance_id": "7138-291944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291944.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.162078757040216,
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-      "utterance_id": "303-123506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123506.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.628643907558413,
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-      "utterance_id": "7138-291944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291944.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 60252
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.55390165560983,
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-      "duration_frames": 55137,
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-      "utterance_id": "303-123500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123500.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 91483
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.6,
-      "start_time": 24.037053221727625,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/303/laugh/0023.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "303"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028958.json b/conversations/conv_028958.json
deleted file mode 100644
index fe5f8cf6734a784d34afdfe8e5011486df0ead45..0000000000000000000000000000000000000000
--- a/conversations/conv_028958.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.929752033023917,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-10944.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-10944.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 103139
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-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "8875-293959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8875-293959.flac |",
-      "real_speaker_id": "8875",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_028964.json b/conversations/conv_028964.json
deleted file mode 100644
index 54a884ed59729c096004021d5808403544e8daf0..0000000000000000000000000000000000000000
--- a/conversations/conv_028964.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144402.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188162.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144402.flac |",
-      "real_speaker_id": "1819",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144401.flac |",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 55799
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_028965.json b/conversations/conv_028965.json
deleted file mode 100644
index b8c43db86e010eaf7c6425c64899590328e3ef16..0000000000000000000000000000000000000000
--- a/conversations/conv_028965.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.77965571664742,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.331768068189312,
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-      "utterance_id": "6189-64708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
-      "real_speaker_id": "6189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.799964109721182,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7828-105179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_028969.json b/conversations/conv_028969.json
deleted file mode 100644
index 9679ac773951736375b09800ef704b5f14f6c7c3..0000000000000000000000000000000000000000
--- a/conversations/conv_028969.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295761.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295759.flac |",
-      "real_speaker_id": "8635",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295759.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 78870
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_028973.json b/conversations/conv_028973.json
deleted file mode 100644
index e0776cbd61e572b52171c34a0ed67eafad881714..0000000000000000000000000000000000000000
--- a/conversations/conv_028973.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262282.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_028974.json b/conversations/conv_028974.json
deleted file mode 100644
index 02b653be8fb7b0c5f8b73f7717e64ce725d1fb38..0000000000000000000000000000000000000000
--- a/conversations/conv_028974.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7264-92314.flac |",
-      "real_speaker_id": "7264",
-      "position_frames": 0
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-      "utterance_id": "7264-92314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7264-92314.flac |",
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-      "position_frames": 134169
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-  ],
-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028986.json b/conversations/conv_028986.json
deleted file mode 100644
index e368cbd6c29ba3323a6eb26498f55f4f23bc0545..0000000000000000000000000000000000000000
--- a/conversations/conv_028986.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.052048921155308,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "613-128284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-128284.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7780",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
-      "real_speaker_id": "2356",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-128284.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 80223
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.922601686768278,
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-      "utterance_id": "2356-154885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154885.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 25.43144986359113,
-      "speaker_id": "613"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_028990.json b/conversations/conv_028990.json
deleted file mode 100644
index 3d98d9819d98a58a3a9aae2490941893c84f7dd4..0000000000000000000000000000000000000000
--- a/conversations/conv_028990.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.070462939834513,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.323644434570695,
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-      "overlap": false,
-      "utterance_id": "3467-166572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166572.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.948491712748584,
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-      "real_speaker_id": "7009",
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-      "utterance_id": "3467-166572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166572.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 85178
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.709627512021555,
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-      "utterance_id": "483-125126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125126.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.700746998831065,
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-      "utterance_id": "3467-166572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166572.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 139402
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7009-83683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-83683.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 61497
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.364564101562678,
-      "end_time": 31.070462939834513,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166570.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029006.json b/conversations/conv_029006.json
deleted file mode 100644
index ea6f29a1b3bd3c501e33bf175ed0203ca27fad41..0000000000000000000000000000000000000000
--- a/conversations/conv_029006.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "335-125951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125951.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
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-      "overlap": false,
-      "utterance_id": "335-125951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125951.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 80069
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125943.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.174672818137175,
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-      "utterance_id": "3143-160993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3143-160993.flac |",
-      "real_speaker_id": "3143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.98751343916698,
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-      "utterance_id": "335-125945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125945.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
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-      "duration": 0.4284994786532567,
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-      "speaker_id": "335"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029010.json b/conversations/conv_029010.json
deleted file mode 100644
index db64fc02a7ff0d5b6c2f5ff0cbf0570a85187cd7..0000000000000000000000000000000000000000
--- a/conversations/conv_029010.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "end_time": 5.775476772165632,
-      "duration": 5.775476772165632,
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-      "overlap": false,
-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29411.flac |",
-      "real_speaker_id": "5022",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 92407
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29405.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.973200603328497,
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-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 180846
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 0.3766105359142742,
-      "start_frame": 505974,
-      "duration_frames": 6025,
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-      "utterance_id": "5022-29405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29405.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 83768
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7448/cough/0069.wav",
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-      "speaker_id": "7448"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029021.json b/conversations/conv_029021.json
deleted file mode 100644
index 0a13227c3110bfb7f0cfe49089d2c0810c44b027..0000000000000000000000000000000000000000
--- a/conversations/conv_029021.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 4.238712527876942,
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-      "utterance_id": "7460-104483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-104483.flac |",
-      "real_speaker_id": "7460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.8210849796616895,
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-      "utterance_id": "5181-2490",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2490.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "real_speaker_id": "8421",
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-      "real_speaker_id": "8421",
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-      "segment_id": "seg0004",
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-      "utterance_id": "7460-104483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-104483.flac |",
-      "real_speaker_id": "7460",
-      "position_frames": 67819
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-      "utterance_id": "5181-2488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2488.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.106088275086865,
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-      "start_time": 9.238588801700326,
-      "speaker_id": "8421"
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 26.05757276422184,
-      "speaker_id": "7460"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "5181"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029026.json b/conversations/conv_029026.json
deleted file mode 100644
index 0a2527524eeee41ff8e327ea94cb909869f1c8c8..0000000000000000000000000000000000000000
--- a/conversations/conv_029026.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.777214492668964,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.567543137485348,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-283572.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "713-291178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.150751584561846,
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-      "utterance_id": "517-121744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121744.flac |",
-      "real_speaker_id": "517",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.544936862037492,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 94423
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8422-283572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-283572.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 74316
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-      "duration": 1.08,
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-      "event_class": "cough",
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-      "start_time": 20.545097362870557,
-      "speaker_id": "713"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029030.json b/conversations/conv_029030.json
deleted file mode 100644
index 54d0a68411182169272b0b8fa3f6df39591f2cd5..0000000000000000000000000000000000000000
--- a/conversations/conv_029030.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15081.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
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-      "utterance_id": "4586-61776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-61776.flac |",
-      "real_speaker_id": "4586",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "4335-15081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15081.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 63774
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 59860
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15081.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 113440
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15081.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 161616
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-      "start_time": 7.705244546051354
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_029037.json b/conversations/conv_029037.json
deleted file mode 100644
index b143e9b514863626b15b4c9d1833a0132f828bd7..0000000000000000000000000000000000000000
--- a/conversations/conv_029037.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5688-41232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-41232.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "2930",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.953737590176386,
-      "end_time": 17.020439190512896,
-      "duration": 4.066701600336509,
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-      "overlap": true,
-      "utterance_id": "636-128310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128310.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "2930-163437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163437.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 80620
-    },
-    {
-      "segment_id": "seg0004",
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-      "overlap": true,
-      "utterance_id": "5688-15787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-15787.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2930-5059",
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-      "real_speaker_id": "2930",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029047.json b/conversations/conv_029047.json
deleted file mode 100644
index 24fe33530a1aba5344c3a00d83276c59fa518515..0000000000000000000000000000000000000000
--- a/conversations/conv_029047.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.973397118251676,
-      "duration": 4.973397118251676,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6807-106437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-106437.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.857247966154947,
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-      "duration_frames": 93609,
-      "overlap": true,
-      "utterance_id": "6014-32856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32856.flac |",
-      "real_speaker_id": "6014",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32856.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 93609
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
-      "duration": 1.587765440821992,
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-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_029051.json b/conversations/conv_029051.json
deleted file mode 100644
index f2421b3fbc433faae72abcd0531bd9e4e1dfa027..0000000000000000000000000000000000000000
--- a/conversations/conv_029051.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6097-293616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293616.flac |",
-      "real_speaker_id": "6097",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "5826-53496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-53496.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-53496.flac |",
-      "real_speaker_id": "5826",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 64868
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 155278
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_029060.json b/conversations/conv_029060.json
deleted file mode 100644
index e37440af688f1df12d0b1a943dde7b929556afcc..0000000000000000000000000000000000000000
--- a/conversations/conv_029060.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
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-      "real_speaker_id": "5918",
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-      "real_speaker_id": "17",
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-      "real_speaker_id": "5918",
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-      "real_speaker_id": "510",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029067.json b/conversations/conv_029067.json
deleted file mode 100644
index 9bc743b629e86b30c4f7359c6c7886293cde541c..0000000000000000000000000000000000000000
--- a/conversations/conv_029067.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-  "paralinguistic_events": [
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-      "start_time": 11.354023783587571,
-      "speaker_id": "6157"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6157/cough/0110.wav",
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-      "start_time": 13.311647916448374,
-      "speaker_id": "6157"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5192/laugh/0068.wav",
-      "duration": 0.6808178985586595,
-      "start_time": 23.79024786513358,
-      "speaker_id": "5192"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5192/cough/0038.wav",
-      "duration": 0.8582918718769939,
-      "start_time": 16.58356698708797,
-      "speaker_id": "5192"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6157/laugh/0087.wav",
-      "duration": 1.303957094459798,
-      "start_time": 29.783234014863602,
-      "speaker_id": "6157"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029071.json b/conversations/conv_029071.json
deleted file mode 100644
index 6200092564d2ab07f87233cd4d8e3b4cba90adbb..0000000000000000000000000000000000000000
--- a/conversations/conv_029071.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.534089500651902,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.126295494329539,
-      "duration": 6.126295494329539,
-      "start_frame": 0,
-      "duration_frames": 98020,
-      "overlap": false,
-      "utterance_id": "8142-276732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-276732.flac |",
-      "real_speaker_id": "8142",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.853512758234407,
-      "end_time": 11.225325473491107,
-      "duration": 5.3718127152567,
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-      "duration_frames": 85949,
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-      "utterance_id": "968-122545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122545.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.420253098470065,
-      "end_time": 18.98699214255701,
-      "duration": 6.566739044086945,
-      "start_frame": 198724,
-      "duration_frames": 105067,
-      "overlap": false,
-      "utterance_id": "79-121541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.490982960966576,
-      "end_time": 24.473853922802743,
-      "duration": 4.982870961836166,
-      "start_frame": 311855,
-      "duration_frames": 79725,
-      "overlap": false,
-      "utterance_id": "8142-3966",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-3966.flac |",
-      "real_speaker_id": "8142",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.686693574378218,
-      "end_time": 30.534089500651902,
-      "duration": 5.847395926273683,
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-      "duration_frames": 93558,
-      "overlap": false,
-      "utterance_id": "968-122545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122545.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 85949
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
-      "duration": 0.2863945578231292,
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/968/laugh/0058.wav",
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-      "start_time": 4.6057136022739495,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8142/laugh/0045.wav",
-      "duration": 0.8422165706971507,
-      "start_time": 24.66138096433646,
-      "speaker_id": "8142"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029076.json b/conversations/conv_029076.json
deleted file mode 100644
index cc537ce82a8eb18a17c36774a5c52e1d12fce432..0000000000000000000000000000000000000000
--- a/conversations/conv_029076.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.0973525540898645,
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-      "start_frame": 0,
-      "duration_frames": 65557,
-      "overlap": false,
-      "utterance_id": "6351-64714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
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-      "overlap": false,
-      "utterance_id": "6351-65787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-65787.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.722114018675104,
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-      "overlap": false,
-      "utterance_id": "6351-64714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 65557
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.334762055249392,
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-      "duration_frames": 70668,
-      "overlap": false,
-      "utterance_id": "5671-50453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50453.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.564962774621776,
-      "end_time": 32.0,
-      "duration": 3.435037225378224,
-      "start_frame": 457039,
-      "duration_frames": 54960,
-      "overlap": false,
-      "utterance_id": "6351-65787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-65787.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 91252
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6351/laugh/0066.wav",
-      "duration": 1.28,
-      "start_time": 27.018598876779443,
-      "speaker_id": "6351"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029084.json b/conversations/conv_029084.json
deleted file mode 100644
index c4d787329dfaf56b27f33c41ccbaa96966b9fb9c..0000000000000000000000000000000000000000
--- a/conversations/conv_029084.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 110000,
-      "overlap": false,
-      "utterance_id": "8758-296465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-296465.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.51271149500681,
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-      "utterance_id": "8758-296465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-296465.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 110000
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "6906-65918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.017075401629796,
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-      "duration": 4.554009315329425,
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-      "utterance_id": "8758-291168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-291168.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.871721898976766,
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-      "utterance_id": "8367-279367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279367.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.677942782711913,
-      "end_time": 32.0,
-      "duration": 3.322057217288087,
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-      "duration_frames": 53152,
-      "overlap": false,
-      "utterance_id": "8758-291168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-291168.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 72864
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8758/laugh/0097.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8758/cough/0079.wav",
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-      "speaker_id": "8758"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029088.json b/conversations/conv_029088.json
deleted file mode 100644
index e9fc7243fd2c16f98d448c3451e43823fe08de73..0000000000000000000000000000000000000000
--- a/conversations/conv_029088.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.67353939233003,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "4078-7619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.763826074616791,
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-      "utterance_id": "8705-290363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
-      "real_speaker_id": "8705",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8705-290361",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "4078-76853",
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-      "duration": 1.48,
-      "start_time": 8.442812361155157,
-      "speaker_id": "8705"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8705/laugh/0050.wav",
-      "duration": 1.08,
-      "start_time": 12.367908684302526,
-      "speaker_id": "8705"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2985/laugh/0056.wav",
-      "duration": 1.0285564797036455,
-      "start_time": 30.10754849569289,
-      "speaker_id": "2985"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029092.json b/conversations/conv_029092.json
deleted file mode 100644
index f076395012b6a2d0f646546c5c9b3e88a2308fc9..0000000000000000000000000000000000000000
--- a/conversations/conv_029092.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.880933283592333,
-      "end_time": 9.35043809447538,
-      "duration": 3.469504810883047,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-26100.flac |",
-      "real_speaker_id": "1970",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-28415.flac |",
-      "real_speaker_id": "1970",
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-      "speaker_id": 0,
-      "start_time": 21.639888804712527,
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-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 161938
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.94185953957249,
-      "end_time": 32.0,
-      "duration": 5.058140460427509,
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-      "overlap": false,
-      "utterance_id": "1970-26100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-26100.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 55512
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 18.54902624334798,
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-  "foreground_events": [
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-      "event_class": "Cat",
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "start_time": 28.835374755519577,
-      "speaker_id": "1970"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029099.json b/conversations/conv_029099.json
deleted file mode 100644
index b4510bda72f0453cd5411467c7b8fbcb0dabaeca..0000000000000000000000000000000000000000
--- a/conversations/conv_029099.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "816-2301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "position_frames": 0
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-      "utterance_id": "816-2301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
-      "real_speaker_id": "816",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 89238
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "816-2301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 152199
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.48034284331218,
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-      "start_frame": 471685,
-      "duration_frames": 40314,
-      "overlap": false,
-      "utterance_id": "3244-10692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10692.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/816/laugh/0017.wav",
-      "duration": 0.9275467081248008,
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-      "event_class": "laugh",
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-      "speaker_id": "816"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/816/laugh/0062.wav",
-      "duration": 0.8077941034837438,
-      "start_time": 24.343616718037673,
-      "speaker_id": "816"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029102.json b/conversations/conv_029102.json
deleted file mode 100644
index 1f798addbe402679cf7f5d797776db122b0d4e4b..0000000000000000000000000000000000000000
--- a/conversations/conv_029102.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "3118-5912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5912.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.8800766922535,
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-      "utterance_id": "3118-5912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5912.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 93065
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-      "utterance_id": "681-161945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-161945.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.550614568162686,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5911.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.580446101220662,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5912.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 164290
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6139-58868",
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-      "real_speaker_id": "6139",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3118/laugh/0054.wav",
-      "duration": 1.16,
-      "start_time": 20.112697320621958,
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-    {
-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6139/laugh/0082.wav",
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-      "start_time": 31.21379163318686,
-      "speaker_id": "6139"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029114.json b/conversations/conv_029114.json
deleted file mode 100644
index 1b772aa41a72fd95a9bebcf0aa25bc11dadbbd67..0000000000000000000000000000000000000000
--- a/conversations/conv_029114.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92224.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "7756",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_029118.json b/conversations/conv_029118.json
deleted file mode 100644
index da97ba16d3c51404ddd255ce6ac29c8b2628a8a7..0000000000000000000000000000000000000000
--- a/conversations/conv_029118.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78240.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7297-275885.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2104-78240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78240.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 69817
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "speaker_id": "2104"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029122.json b/conversations/conv_029122.json
deleted file mode 100644
index 50104f5a4ff9b3b26a244b3ae28630a387e12d4e..0000000000000000000000000000000000000000
--- a/conversations/conv_029122.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-48224.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
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-      "real_speaker_id": "6583",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126959.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 81750
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.641222774822573,
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-      "utterance_id": "6583-48224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-48224.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 96970
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4710-24606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-24606.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
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-  "paralinguistic_events": [
-    {
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-      "duration": 1.0,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "4710"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029125.json b/conversations/conv_029125.json
deleted file mode 100644
index 2bf9bde4549adde288184586748c0fa4b6e45fc8..0000000000000000000000000000000000000000
--- a/conversations/conv_029125.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7833-102238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102238.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-266250.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "position_frames": 79296
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-    {
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-      "utterance_id": "7833-102239",
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-      "real_speaker_id": "7833",
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-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.39317454979002,
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-      "utterance_id": "8296-279865",
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-      "speaker_id": "8296"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029133.json b/conversations/conv_029133.json
deleted file mode 100644
index 4746fcbc4834fbd5d973025f57b36e827f7947df..0000000000000000000000000000000000000000
--- a/conversations/conv_029133.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.212627932030003,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136910.flac |",
-      "real_speaker_id": "1097",
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-      "real_speaker_id": "7518",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.543736303133654,
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-      "utterance_id": "1097-136912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136912.flac |",
-      "real_speaker_id": "1097",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136910.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 138128
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.12576114568683,
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-      "utterance_id": "403-128339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-128339.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.237672306888108,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 78600
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 7.206161777238597,
-      "speaker_id": "1097"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1097/cough/0046.wav",
-      "duration": 1.1246749080080474,
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-      "speaker_id": "1097"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1097/cough/0125.wav",
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-      "speaker_id": "1097"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029134.json b/conversations/conv_029134.json
deleted file mode 100644
index 19345cf2537b6f8a62a10b9baabb2717db163267..0000000000000000000000000000000000000000
--- a/conversations/conv_029134.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.5302860656342,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6705-74242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74242.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.718341231146923,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-122594.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74244.flac |",
-      "real_speaker_id": "6705",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15045.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-122594.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 103911
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "2911-7601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-7601.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029138.json b/conversations/conv_029138.json
deleted file mode 100644
index b207426b4e5949aacc2ee5eea9be0c9cd572701b..0000000000000000000000000000000000000000
--- a/conversations/conv_029138.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7460-92002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-92002.flac |",
-      "real_speaker_id": "7460",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-75242.flac |",
-      "real_speaker_id": "1212",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-92002.flac |",
-      "real_speaker_id": "7460",
-      "position_frames": 89610
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7786-118675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-118675.flac |",
-      "real_speaker_id": "7786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.90094638084243,
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-      "utterance_id": "7460-104483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-104483.flac |",
-      "real_speaker_id": "7460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7460-104483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-104483.flac |",
-      "real_speaker_id": "7460",
-      "position_frames": 85864
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7460/laugh/0070.wav",
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-      "start_time": 30.8,
-      "speaker_id": "7460"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029143.json b/conversations/conv_029143.json
deleted file mode 100644
index d6877c649d57c06b861d8091c774b6d32549a5ec..0000000000000000000000000000000000000000
--- a/conversations/conv_029143.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1316-132782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132782.flac |",
-      "real_speaker_id": "1316",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.5451584156255995,
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-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "6288-63101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63101.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "real_speaker_id": "1316",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6288-63101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63101.flac |",
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-      "position_frames": 99014
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1166"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029155.json b/conversations/conv_029155.json
deleted file mode 100644
index 448ac2d9a903f1989f19c72ad990aeb94fc956cb..0000000000000000000000000000000000000000
--- a/conversations/conv_029155.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1463-134465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.316469513797161,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 0
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-      "real_speaker_id": "1463",
-      "position_frames": 66927
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-      "speaker_id": 1,
-      "start_time": 14.257257500378072,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-75939.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 71352
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "1463-134463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134463.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.341149390647953,
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-      "duration": 0.6588506093520472,
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-      "utterance_id": "7434-96672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "3272"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029158.json b/conversations/conv_029158.json
deleted file mode 100644
index 2c6edafcfb9ec89861733eabde321dc8553b5e94..0000000000000000000000000000000000000000
--- a/conversations/conv_029158.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132013.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
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-      "utterance_id": "404-132013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132013.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 99294
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.566867951821267,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.056805822613725,
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-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "404-132015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132015.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-    {
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-    {
-      "event_class": "laugh",
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-    {
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-      "speaker_id": "404"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029159.json b/conversations/conv_029159.json
deleted file mode 100644
index 152c033e4680aa4d1b5cd864ffd96fb069331902..0000000000000000000000000000000000000000
--- a/conversations/conv_029159.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.915634521084502,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "831-130739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138109.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 85867
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.919783511363182,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-77626.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 100790
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029163.json b/conversations/conv_029163.json
deleted file mode 100644
index a2f516e8dfd0cbfc5ec6d8863e1bc69d5aac89a3..0000000000000000000000000000000000000000
--- a/conversations/conv_029163.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.502937989767,
-  "num_speakers": 3,
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
-      "duration": 3.7154384599930275,
-      "start_time": 18.92114594952742
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6594/laugh/0072.wav",
-      "duration": 0.96,
-      "start_time": 17.594976595817695,
-      "speaker_id": "6594"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6594/cough/0069.wav",
-      "duration": 0.8322729754506644,
-      "start_time": 19.565430244837643,
-      "speaker_id": "6594"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029164.json b/conversations/conv_029164.json
deleted file mode 100644
index 93c267c3a55aa2544622aed39d76e35a8727e1df..0000000000000000000000000000000000000000
--- a/conversations/conv_029164.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "511-131226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131226.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.021313579633487,
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-      "duration": 5.380954410644618,
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-      "utterance_id": "296-141721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.02745199363107,
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-      "utterance_id": "511-131226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131226.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 79822
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.396918681734437,
-      "end_time": 19.97426428467301,
-      "duration": 3.57734560293857,
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-      "duration_frames": 57237,
-      "overlap": false,
-      "utterance_id": "296-141721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 86095
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.079113349325457,
-      "end_time": 23.22447176070957,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131226.flac |",
-      "real_speaker_id": "511",
-      "position_frames": 158018
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.629624044792823,
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-      "utterance_id": "296-142727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-142727.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.07279494225998,
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-      "duration": 2.9272050577400215,
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-      "utterance_id": "511-131228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131228.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/511/cough/0095.wav",
-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "511"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/296/laugh/0029.wav",
-      "duration": 1.16,
-      "start_time": 10.621272016883417,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/296/laugh/0050.wav",
-      "duration": 1.68,
-      "start_time": 14.588884979868878,
-      "speaker_id": "296"
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-      "event_class": "cough",
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-      "speaker_id": "296"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029172.json b/conversations/conv_029172.json
deleted file mode 100644
index 515da901b934a632404d46831560290ab95b4353..0000000000000000000000000000000000000000
--- a/conversations/conv_029172.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4931-28242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28242.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 0
-    },
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-      "utterance_id": "4742-41609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
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-      "overlap": false,
-      "utterance_id": "4931-28257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28257.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.08825356246283,
-      "end_time": 21.680432715841228,
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-      "overlap": false,
-      "utterance_id": "4742-74181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.012991028428157,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 57474
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28257.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 77712
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "duration": 1.634741203034999,
-      "start_time": 9.774992653529097
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_029175.json b/conversations/conv_029175.json
deleted file mode 100644
index 129722d4177ff5d0b67c90570abfd154bfe8f4f7..0000000000000000000000000000000000000000
--- a/conversations/conv_029175.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1473-135657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71550.flac |",
-      "real_speaker_id": "3703",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
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-    {
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-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.483656346706564,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 154750
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.549300467848333,
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-      "utterance_id": "6099-230928",
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-      "real_speaker_id": "6099",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1473/laugh/0022.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029179.json b/conversations/conv_029179.json
deleted file mode 100644
index 47fc56dd4792aaf25f2c56ccda4ae88c5f601a34..0000000000000000000000000000000000000000
--- a/conversations/conv_029179.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.846905671667972,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
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-  "foreground_events": [
-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5772/laugh/0083.wav",
-      "duration": 0.5454180784181738,
-      "start_time": 28.838652538617538,
-      "speaker_id": "5772"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029180.json b/conversations/conv_029180.json
deleted file mode 100644
index 34091eedef60e4eb34a701d85b039ddae6b3c73a..0000000000000000000000000000000000000000
--- a/conversations/conv_029180.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.325434173803892,
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-      "utterance_id": "2341-163408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2341-163408.flac |",
-      "real_speaker_id": "2341",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.347216193086528,
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-      "duration": 4.487598851762884,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64264.flac |",
-      "real_speaker_id": "6689",
-      "position_frames": 0
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-      "utterance_id": "6531-61334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.140086633436386,
-      "end_time": 22.40998015387916,
-      "duration": 5.269893520442773,
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-      "overlap": false,
-      "utterance_id": "2341-163408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2341-163408.flac |",
-      "real_speaker_id": "2341",
-      "position_frames": 85206
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.267226405337148,
-      "end_time": 27.29570963085537,
-      "duration": 4.028483225518224,
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-      "duration_frames": 64455,
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-      "utterance_id": "6531-61334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
-      "position_frames": 88887
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.6341848594864,
-      "end_time": 32.0,
-      "duration": 3.3658151405136003,
-      "start_frame": 458146,
-      "duration_frames": 53853,
-      "overlap": false,
-      "utterance_id": "2341-151701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2341-151701.flac |",
-      "real_speaker_id": "2341",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
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-      "start_time": 4.2821027558449325
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2341/laugh/0035.wav",
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-      "speaker_id": "2341"
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-      "event_class": "cough",
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-      "speaker_id": "2341"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029196.json b/conversations/conv_029196.json
deleted file mode 100644
index ad5d1b784ca7e328c90d5f4e1ed5a9f522293cd2..0000000000000000000000000000000000000000
--- a/conversations/conv_029196.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1572-141718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.7771835868276975,
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-      "overlap": true,
-      "utterance_id": "6943-85168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85168.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 9.537094699986532,
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-      "utterance_id": "1572-141718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85168.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 58963
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.34371509179077,
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-      "utterance_id": "1572-141718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 146839
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.75993494134316,
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-      "duration_frames": 86816,
-      "overlap": true,
-      "utterance_id": "6943-64094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-64094.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.523450182862764,
-      "end_time": 32.0,
-      "duration": 1.4765498171372364,
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-      "overlap": false,
-      "utterance_id": "696-92939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/696-92939.flac |",
-      "real_speaker_id": "696",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1572/laugh/0035.wav",
-      "duration": 1.36,
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-      "speaker_id": "1572"
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-      "event_class": "cough",
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-      "speaker_id": "1572"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6943/cough/0035.wav",
-      "duration": 0.8760424740212851,
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-      "speaker_id": "6943"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6943/laugh/0089.wav",
-      "duration": 0.5803407026419591,
-      "start_time": 28.024793921741278,
-      "speaker_id": "6943"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029207.json b/conversations/conv_029207.json
deleted file mode 100644
index cd172e36e467753332622aee19feda1f28aee696..0000000000000000000000000000000000000000
--- a/conversations/conv_029207.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.75960087474833,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "489-75912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75912.flac |",
-      "real_speaker_id": "489",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.48153909418673,
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-      "start_frame": 87704,
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-      "overlap": false,
-      "utterance_id": "1367-291967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291967.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5252-4876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4876.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.550976196091966,
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-      "duration": 5.653486378374585,
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-      "utterance_id": "1367-291931",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291931.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.390833625644213,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291968.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 28590,
-      "overlap": true,
-      "utterance_id": "5252-4868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4868.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/489/cough/0045.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5252/laugh/0018.wav",
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-      "start_time": 15.021300053780397,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5252/cough/0004.wav",
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-      "start_time": 17.906889747928567,
-      "speaker_id": "5252"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1367/laugh/0069.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5252/laugh/0052.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029211.json b/conversations/conv_029211.json
deleted file mode 100644
index d91fac6500b39f9551c0668dd58f3d44cc0665d1..0000000000000000000000000000000000000000
--- a/conversations/conv_029211.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1634-141571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1634-141571.flac |",
-      "real_speaker_id": "1634",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2448-141428",
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-      "real_speaker_id": "2448",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-295957.flac |",
-      "real_speaker_id": "8625",
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-    {
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.64285385002828,
-      "end_time": 32.0,
-      "duration": 3.357146149971719,
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-      "duration_frames": 53714,
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-      "utterance_id": "8625-211892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-211892.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 12.021866501591703,
-      "speaker_id": "8625"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2448/laugh/0007.wav",
-      "duration": 1.14,
-      "start_time": 22.27120327958734,
-      "speaker_id": "2448"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8625/laugh/0024.wav",
-      "duration": 1.0103679412985498,
-      "start_time": 30.427573867908745,
-      "speaker_id": "8625"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8625/cough/0039.wav",
-      "duration": 0.7732544436745259,
-      "start_time": 31.226745556325476,
-      "speaker_id": "8625"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029226.json b/conversations/conv_029226.json
deleted file mode 100644
index a33c1be01f3ef0a1f7afbfd21a732335731bd0fd..0000000000000000000000000000000000000000
--- a/conversations/conv_029226.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.698896713679666,
-      "duration": 3.698896713679666,
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-      "duration_frames": 59182,
-      "overlap": false,
-      "utterance_id": "7148-82991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-82991.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.552425287862389,
-      "end_time": 7.746623131423492,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 51107
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.078541922051214,
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-      "overlap": false,
-      "utterance_id": "1653-142352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142352.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.966600123700786,
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-      "utterance_id": "7148-7763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-7763.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.094853960751184,
-      "end_time": 31.465010138309424,
-      "duration": 5.37015617755824,
-      "start_frame": 417517,
-      "duration_frames": 85922,
-      "overlap": false,
-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 124778
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.694430038770548,
-      "end_time": 32.0,
-      "duration": 0.3055699612294518,
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-      "utterance_id": "7148-7763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-7763.flac |",
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-      "position_frames": 96960
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2570/cough/0030.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029227.json b/conversations/conv_029227.json
deleted file mode 100644
index b25d8e48016651ddfc72cfe5234973ac1d769f93..0000000000000000000000000000000000000000
--- a/conversations/conv_029227.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "5649-40567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40567.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.833138271569182,
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-      "utterance_id": "2140-39822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-39822.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "5649-40582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40582.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.77147005105769,
-      "end_time": 23.47106579807975,
-      "duration": 5.699595747022058,
-      "start_frame": 284343,
-      "duration_frames": 91193,
-      "overlap": false,
-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.631726138945986,
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-      "duration": 4.378802369681444,
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-      "duration_frames": 70060,
-      "overlap": true,
-      "utterance_id": "2140-160867",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-160867.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.48933205318804,
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-      "duration": 2.51066794681196,
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-      "utterance_id": "5649-40567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40567.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 83703
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "2140"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029231.json b/conversations/conv_029231.json
deleted file mode 100644
index 25ef8c01ffcca231a2993234d2071dddc5079d9a..0000000000000000000000000000000000000000
--- a/conversations/conv_029231.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.1369686159541335,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4957-30119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-30119.flac |",
-      "real_speaker_id": "4957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.023418421073909,
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-      "overlap": false,
-      "utterance_id": "2140-160867",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-160867.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.46132313072113,
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-      "duration_frames": 60560,
-      "overlap": false,
-      "utterance_id": "2201-7371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2201-7371.flac |",
-      "real_speaker_id": "2201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.479223747473188,
-      "end_time": 18.621882563557843,
-      "duration": 3.1426588160846562,
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-      "utterance_id": "2140-39822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-39822.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.011637206790525,
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-      "utterance_id": "2201-160438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2201-160438.flac |",
-      "real_speaker_id": "2201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 6.217283586878931,
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-      "duration_frames": 99476,
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-      "utterance_id": "2140-39822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-39822.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 50282
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.6787572579746,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "2140-17255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-17255.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2140/laugh/0088.wav",
-      "duration": 1.12,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2140/cough/0058.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2140/laugh/0077.wav",
-      "duration": 1.3,
-      "start_time": 30.7,
-      "speaker_id": "2140"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2140/cough/0046.wav",
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-      "speaker_id": "2140"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029236.json b/conversations/conv_029236.json
deleted file mode 100644
index 5f29ba54bff9ce2f98a7fce17e96c9a03864496c..0000000000000000000000000000000000000000
--- a/conversations/conv_029236.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.892678140151568,
-      "duration": 4.892678140151568,
-      "start_frame": 0,
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-      "utterance_id": "4930-20046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.239010198814578,
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-      "utterance_id": "6104-58843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58843.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "4078-76853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-76853.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.071570614296604,
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-      "duration": 4.497682860192813,
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-      "utterance_id": "6104-58843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58843.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 100045
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.364212909474606,
-      "end_time": 28.59780785033307,
-      "duration": 4.233594940858464,
-      "start_frame": 389827,
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-      "overlap": false,
-      "utterance_id": "6104-58843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58843.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 172007
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.04368554218039,
-      "end_time": 32.0,
-      "duration": 2.9563144578196088,
-      "start_frame": 464698,
-      "duration_frames": 47301,
-      "overlap": false,
-      "utterance_id": "4078-7619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 22.972943482136394,
-      "start_time": 7.148106659609717
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_8.wav",
-      "duration": 0.5433333333333333,
-      "start_time": 24.234251276747557
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
-      "duration": 3.8402577147982324,
-      "start_time": 11.793056930722313
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6104/laugh/0024.wav",
-      "duration": 1.24,
-      "start_time": 8.803673376890774,
-      "speaker_id": "6104"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6104/cough/0025.wav",
-      "duration": 1.32,
-      "start_time": 11.59286761426237,
-      "speaker_id": "6104"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/cough/0056.wav",
-      "duration": 1.04,
-      "start_time": 10.865150482468746,
-      "speaker_id": "4078"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6104/laugh/0075.wav",
-      "duration": 1.24,
-      "start_time": 17.800520364954153,
-      "speaker_id": "6104"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6104/laugh/0022.wav",
-      "duration": 0.5365164612730664,
-      "start_time": 23.55146206996209,
-      "speaker_id": "6104"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029246.json b/conversations/conv_029246.json
deleted file mode 100644
index e3f66d4175efea7243348097c29e9347240d72ed..0000000000000000000000000000000000000000
--- a/conversations/conv_029246.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.222062878035279,
-      "duration": 5.222062878035279,
-      "start_frame": 0,
-      "duration_frames": 83553,
-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.516780321222039,
-      "end_time": 10.329913142088971,
-      "duration": 3.813132820866932,
-      "start_frame": 104268,
-      "duration_frames": 61010,
-      "overlap": false,
-      "utterance_id": "2494-156014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156014.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.839218968755205,
-      "end_time": 16.016841275169554,
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-      "duration_frames": 82841,
-      "overlap": false,
-      "utterance_id": "4859-22176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-22176.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.71200187398887,
-      "end_time": 20.808378301300998,
-      "duration": 4.096376427312125,
-      "start_frame": 267392,
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-      "overlap": false,
-      "utterance_id": "4859-26870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-26870.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.34122481582673,
-      "end_time": 26.7095504332677,
-      "duration": 5.368325617440969,
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-      "duration_frames": 85893,
-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 83553
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.335100753138477,
-      "end_time": 32.0,
-      "duration": 4.664899246861523,
-      "start_frame": 437361,
-      "duration_frames": 74638,
-      "overlap": false,
-      "utterance_id": "2494-156017",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156017.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "start_time": 1.0022041161226565
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4859/laugh/0024.wav",
-      "duration": 0.5101027608089521,
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-    },
-    {
-      "event_class": "laugh",
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-      "duration": 0.7204265691888031,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8632/cough/0048.wav",
-      "duration": 1.1,
-      "start_time": 26.851729675768592,
-      "speaker_id": "8632"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2494/laugh/0036.wav",
-      "duration": 1.12,
-      "start_time": 30.54647614072384,
-      "speaker_id": "2494"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029250.json b/conversations/conv_029250.json
deleted file mode 100644
index 1bac58a74f5c7c15658a97ab8af3d274f100ecfc..0000000000000000000000000000000000000000
--- a/conversations/conv_029250.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.552535296074571,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7339-86804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7339-86804.flac |",
-      "real_speaker_id": "7339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.323865563438078,
-      "end_time": 9.389969921741706,
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-      "overlap": false,
-      "utterance_id": "2785-163322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-163322.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.473764748657292,
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-      "duration_frames": 49404,
-      "overlap": false,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.96312170828006,
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-      "duration": 4.386537992945931,
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-      "duration_frames": 70184,
-      "overlap": false,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 49404
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.960329060211823,
-      "end_time": 24.511728312580345,
-      "duration": 5.5513992523685225,
-      "start_frame": 303365,
-      "duration_frames": 88822,
-      "overlap": false,
-      "utterance_id": "2785-163322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-163322.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 81057
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.675595641116438,
-      "end_time": 29.236461334099623,
-      "duration": 4.560865692983187,
-      "start_frame": 394809,
-      "duration_frames": 72973,
-      "overlap": true,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 119588
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.406361284595143,
-      "end_time": 32.0,
-      "duration": 1.5936387154048575,
-      "start_frame": 486501,
-      "duration_frames": 25498,
-      "overlap": false,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 192561
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
-      "start_time": 12.3387860983856
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
-      "start_time": 24.733676416564172
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1849/laugh/0103.wav",
-      "duration": 1.38,
-      "start_time": 29.271193982900634,
-      "speaker_id": "1849"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029266.json b/conversations/conv_029266.json
deleted file mode 100644
index 1d4c21dd498b29e0dc32df1c8690d99e0804a7a6..0000000000000000000000000000000000000000
--- a/conversations/conv_029266.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.767682739436933,
-      "duration": 6.767682739436933,
-      "start_frame": 0,
-      "duration_frames": 108282,
-      "overlap": false,
-      "utterance_id": "5514-19192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19192.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.685246950480825,
-      "end_time": 12.694585769627821,
-      "duration": 5.009338819146995,
-      "start_frame": 122963,
-      "duration_frames": 80149,
-      "overlap": false,
-      "utterance_id": "2893-139310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139310.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.25387864385661,
-      "end_time": 17.8032004226803,
-      "duration": 4.549321778823688,
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-      "duration_frames": 72789,
-      "overlap": false,
-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.443988341437645,
-      "end_time": 24.23161076219698,
-      "duration": 5.787622420759332,
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-      "duration_frames": 92601,
-      "overlap": false,
-      "utterance_id": "2893-139322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139322.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.55893432917857,
-      "end_time": 29.574043679772544,
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-      "duration_frames": 80241,
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-      "utterance_id": "5514-19192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19192.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 108282
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.497743783459875,
-      "end_time": 32.0,
-      "duration": 1.5022562165401254,
-      "start_frame": 487963,
-      "duration_frames": 24036,
-      "overlap": false,
-      "utterance_id": "2893-139322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139322.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 92601
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 9.943039476241001
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
-      "duration": 1.106339810886615,
-      "start_time": 24.33827932686671
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
-      "duration": 1.9028500906022479,
-      "start_time": 13.671766409690497
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2893/laugh/0023.wav",
-      "duration": 1.56,
-      "start_time": 12.807809609975207,
-      "speaker_id": "2893"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5514/laugh/0072.wav",
-      "duration": 0.5845790841116834,
-      "start_time": 12.562960278621922,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5514/cough/0071.wav",
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-      "start_time": 17.861467358558123,
-      "speaker_id": "5514"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029270.json b/conversations/conv_029270.json
deleted file mode 100644
index 3569db2337802e1cd0c639984b8724b8f7571eae..0000000000000000000000000000000000000000
--- a/conversations/conv_029270.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.755533595933684,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.75554885472689,
-      "duration": 5.75554885472689,
-      "start_frame": 0,
-      "duration_frames": 92088,
-      "overlap": false,
-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.120526655715344,
-      "end_time": 12.224012507330155,
-      "duration": 6.103485851614812,
-      "start_frame": 97928,
-      "duration_frames": 97655,
-      "overlap": false,
-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.449026192108295,
-      "end_time": 18.163147701037115,
-      "duration": 5.714121508928819,
-      "start_frame": 199184,
-      "duration_frames": 91425,
-      "overlap": false,
-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 92088
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.01441145683905,
-      "end_time": 24.874054565908963,
-      "duration": 5.859643109069915,
-      "start_frame": 304230,
-      "duration_frames": 93754,
-      "overlap": false,
-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 97655
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.978264052184077,
-      "end_time": 30.755533595933684,
-      "duration": 4.777269543749608,
-      "start_frame": 415652,
-      "duration_frames": 76436,
-      "overlap": true,
-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
-      "duration": 17.646296066034772,
-      "start_time": 3.720957971178872
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_3.wav",
-      "duration": 0.22834467120181406,
-      "start_time": 8.998572070499177
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_12.wav",
-      "duration": 1.0369387755102042,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4362/cough/0021.wav",
-      "duration": 0.8158982970552142,
-      "start_time": 12.885643096611016,
-      "speaker_id": "4362"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7346/laugh/0077.wav",
-      "duration": 0.8750587331508572,
-      "start_time": 22.894245251285465,
-      "speaker_id": "7346"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5767/laugh/0082.wav",
-      "duration": 1.9069022873145065,
-      "start_time": 27.17234965927434,
-      "speaker_id": "5767"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029285.json b/conversations/conv_029285.json
deleted file mode 100644
index 43c7c3492ae8ff8abf8a4cee0ac21af0fa8c3673..0000000000000000000000000000000000000000
--- a/conversations/conv_029285.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6227043527256675,
-      "duration": 3.6227043527256675,
-      "start_frame": 0,
-      "duration_frames": 57963,
-      "overlap": false,
-      "utterance_id": "7800-283478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283478.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.541972230615145,
-      "end_time": 7.913565124281794,
-      "duration": 3.371592893666649,
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-      "duration_frames": 53945,
-      "overlap": false,
-      "utterance_id": "7925-116154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-116154.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.60455250254423,
-      "end_time": 13.130836823924344,
-      "duration": 4.526284321380114,
-      "start_frame": 137672,
-      "duration_frames": 72420,
-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.284456311937564,
-      "end_time": 18.29375135475208,
-      "duration": 4.009295042814514,
-      "start_frame": 228551,
-      "duration_frames": 64148,
-      "overlap": false,
-      "utterance_id": "7925-271896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-271896.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.732401974811776,
-      "end_time": 22.091861606542306,
-      "duration": 3.3594596317305316,
-      "start_frame": 299718,
-      "duration_frames": 53751,
-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 72420
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.807403027343327,
-      "end_time": 26.807406400696813,
-      "duration": 4.000003373353487,
-      "start_frame": 364918,
-      "duration_frames": 64000,
-      "overlap": false,
-      "utterance_id": "7800-283492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283492.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.846468668747633,
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-      "duration": 3.1251369470236647,
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-      "duration_frames": 50002,
-      "overlap": false,
-      "utterance_id": "7925-114279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-114279.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 1,
-      "start_time": 31.26003465789554,
-      "end_time": 32.0,
-      "duration": 0.7399653421044583,
-      "start_frame": 500160,
-      "duration_frames": 11839,
-      "overlap": false,
-      "utterance_id": "7800-283493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283493.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Running_water",
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-      "duration": 2.260368791712788,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7800/laugh/0014.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "7800"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7925/laugh/0016.wav",
-      "duration": 1.705717323456034,
-      "start_time": 12.447078416684004,
-      "speaker_id": "7925"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7800/cough/0093.wav",
-      "duration": 1.249399342949081,
-      "start_time": 30.750600657050917,
-      "speaker_id": "7800"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029289.json b/conversations/conv_029289.json
deleted file mode 100644
index f63f5d8e69fe8a8c38897b07f5ab27be289d6eaa..0000000000000000000000000000000000000000
--- a/conversations/conv_029289.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.691702002351853,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.182747002154919,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 50198
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.389005754961827,
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-      "utterance_id": "636-128310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128310.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.621829846037173,
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-      "overlap": false,
-      "utterance_id": "2676-143903",
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-      "real_speaker_id": "2676",
-      "position_frames": 155902
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/laugh/0031.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/laugh/0004.wav",
-      "duration": 1.32,
-      "start_time": 19.236503832873606,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029293.json b/conversations/conv_029293.json
deleted file mode 100644
index c1451d20e282a657e883538ea074ab3df283b0f1..0000000000000000000000000000000000000000
--- a/conversations/conv_029293.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.6746878641173994,
-      "duration": 6.6746878641173994,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "90-130566",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-130566.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.713552494920075,
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-      "utterance_id": "622-121659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-121659.flac |",
-      "real_speaker_id": "622",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6535-114962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-114962.flac |",
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-    {
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-    {
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/90/laugh/0098.wav",
-      "duration": 0.6187393648430406,
-      "start_time": 6.844978203191315,
-      "speaker_id": "90"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6535/cough/0047.wav",
-      "duration": 0.31051605897127066,
-      "start_time": 13.8769255033095,
-      "speaker_id": "6535"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/90/cough/0096.wav",
-      "duration": 1.24,
-      "start_time": 30.183607971401074,
-      "speaker_id": "90"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029303.json b/conversations/conv_029303.json
deleted file mode 100644
index e47b58ef661e14bf6a1db1b415277b1546bb35f7..0000000000000000000000000000000000000000
--- a/conversations/conv_029303.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.409843303531432,
-      "duration": 4.409843303531432,
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-      "duration_frames": 70557,
-      "overlap": false,
-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.142038470841202,
-      "end_time": 9.954043909793056,
-      "duration": 4.812005438951854,
-      "start_frame": 82272,
-      "duration_frames": 76992,
-      "overlap": false,
-      "utterance_id": "1263-139804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-139804.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.706521971556736,
-      "end_time": 17.332813325697106,
-      "duration": 6.62629135414037,
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-      "overlap": false,
-      "utterance_id": "7312-92432",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7312-92432.flac |",
-      "real_speaker_id": "7312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.271538145054514,
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-      "duration": 4.9452603830945066,
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-      "duration_frames": 79124,
-      "overlap": false,
-      "utterance_id": "1263-138246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-138246.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.23130844872425,
-      "end_time": 28.709096162823354,
-      "duration": 4.477787714099105,
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-      "overlap": false,
-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 70557
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.479399421443375,
-      "end_time": 32.0,
-      "duration": 2.520600578556625,
-      "start_frame": 471670,
-      "duration_frames": 40329,
-      "overlap": false,
-      "utterance_id": "1263-139804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-139804.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 76992
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 28.248094813718488,
-      "start_time": 3.2576023901245432
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
-      "duration": 0.20596371882086167,
-      "start_time": 23.150586184417694
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_13.wav",
-      "duration": 0.5375963718820862,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5133/laugh/0067.wav",
-      "duration": 1.4,
-      "start_time": 0,
-      "speaker_id": "5133"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1263/cough/0095.wav",
-      "duration": 1.0463669317938291,
-      "start_time": 10.02554639675494,
-      "speaker_id": "1263"
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-    {
-      "event_class": "cough",
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-      "duration": 1.02,
-      "start_time": 17.40250116838398,
-      "speaker_id": "7312"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1263/cough/0087.wav",
-      "duration": 0.35139992914252977,
-      "start_time": 17.782439760812657,
-      "speaker_id": "1263"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1263/laugh/0037.wav",
-      "duration": 1.12,
-      "start_time": 28.154374953856564,
-      "speaker_id": "1263"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029308.json b/conversations/conv_029308.json
deleted file mode 100644
index 7e83787e7e0497d398f599dc0e51617bfb324009..0000000000000000000000000000000000000000
--- a/conversations/conv_029308.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.6059911173817785,
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-      "overlap": false,
-      "utterance_id": "7816-108621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108621.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.204588230363259,
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-      "utterance_id": "7816-108621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108621.flac |",
-      "real_speaker_id": "7816",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.816079093207941,
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-      "overlap": false,
-      "utterance_id": "1347-164338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.577085371986273,
-      "end_time": 21.04014121211547,
-      "duration": 6.463055840129196,
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-      "utterance_id": "7816-108621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108621.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 151084
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.790346724419418,
-      "end_time": 26.64044772096698,
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-      "overlap": false,
-      "utterance_id": "8071-114972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-114972.flac |",
-      "real_speaker_id": "8071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.028713092456247,
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-      "duration": 3.065447937586448,
-      "start_frame": 432459,
-      "duration_frames": 49047,
-      "overlap": false,
-      "utterance_id": "1347-164338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 54631
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.700590512330542,
-      "end_time": 32.0,
-      "duration": 1.2994094876694575,
-      "start_frame": 491209,
-      "duration_frames": 20790,
-      "overlap": false,
-      "utterance_id": "7816-108621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108621.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 254492
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
-      "duration": 1.3640660261094002,
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7816/cough/0032.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 3.751944950476044,
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-    {
-      "event_class": "cough",
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-      "duration": 0.631622959085881,
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-      "speaker_id": "7816"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029315.json b/conversations/conv_029315.json
deleted file mode 100644
index c0bbc7e2bdf08125ba134888794c8a407e0dcb65..0000000000000000000000000000000000000000
--- a/conversations/conv_029315.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "392-289427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/392-289427.flac |",
-      "real_speaker_id": "392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8848-293963.flac |",
-      "real_speaker_id": "8848",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8848-293963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8848-293963.flac |",
-      "real_speaker_id": "8848",
-      "position_frames": 50329
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-12526.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.965962216179864,
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-      "utterance_id": "8848-293957",
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-      "real_speaker_id": "8848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 31.16309077143384,
-      "end_time": 32.0,
-      "duration": 0.8369092285661601,
-      "start_frame": 498609,
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-      "utterance_id": "4104-181012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-181012.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
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-      "start_time": 0,
-      "speaker_id": "392"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8848/laugh/0049.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029319.json b/conversations/conv_029319.json
deleted file mode 100644
index 26fb42c84b029c2c1bb50e822c8c4592cd7f3cb2..0000000000000000000000000000000000000000
--- a/conversations/conv_029319.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6540-232291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-232291.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-128021.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_029323.json b/conversations/conv_029323.json
deleted file mode 100644
index ab2259c3e35dcdb3ac138af150a930db46ae763d..0000000000000000000000000000000000000000
--- a/conversations/conv_029323.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "161-121743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121743.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "real_speaker_id": "1813",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1448-135894.flac |",
-      "real_speaker_id": "1448",
-      "position_frames": 100342
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 97150
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-      "utterance_id": "1448-135894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1448-135894.flac |",
-      "real_speaker_id": "1448",
-      "position_frames": 193981
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029335.json b/conversations/conv_029335.json
deleted file mode 100644
index 10d92e26bc72c2e4933f37c42bfd271c580152f1..0000000000000000000000000000000000000000
--- a/conversations/conv_029335.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-14942.flac |",
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-      "real_speaker_id": "7178",
-      "position_frames": 94772
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_029339.json b/conversations/conv_029339.json
deleted file mode 100644
index b81d4dbb55891899aa3c3e325e8e292e8ab170a1..0000000000000000000000000000000000000000
--- a/conversations/conv_029339.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_029342.json b/conversations/conv_029342.json
deleted file mode 100644
index 9eefc5d7da903f2b49f3f8601f52abeb2e0c96bd..0000000000000000000000000000000000000000
--- a/conversations/conv_029342.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-129387.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 69170
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.84807429036585,
-      "end_time": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-122857.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-      "event_class": "Dishes",
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-      "duration": 1.08,
-      "start_time": 21.159328800459427,
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029349.json b/conversations/conv_029349.json
deleted file mode 100644
index 8e81dabacc5fde770421de8f37702dc6d8afd853..0000000000000000000000000000000000000000
--- a/conversations/conv_029349.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.453810256880849,
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-      "utterance_id": "2122-149350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.610135257090667,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12895.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
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-      "utterance_id": "2487-169011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169011.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2487-162474",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "start_time": 30.96,
-      "speaker_id": "2487"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029354.json b/conversations/conv_029354.json
deleted file mode 100644
index 706d93d361a598e7885c78f0ad72a43e012c83de..0000000000000000000000000000000000000000
--- a/conversations/conv_029354.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "1545",
-      "position_frames": 0
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-    {
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-      "utterance_id": "3486-166446",
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-      "real_speaker_id": "3486",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.71536176704291,
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-      "duration": 3.2846382329570893,
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-      "duration_frames": 52554,
-      "overlap": false,
-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 61942
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
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-      "start_time": 9.553890366294826,
-      "speaker_id": "3486"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1545/laugh/0012.wav",
-      "duration": 1.188834307787526,
-      "start_time": 15.923712701287243,
-      "speaker_id": "1545"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/319/laugh/0126.wav",
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-      "speaker_id": "319"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029358.json b/conversations/conv_029358.json
deleted file mode 100644
index 254b5fefa606500b60af6fc99604a499eccb2030..0000000000000000000000000000000000000000
--- a/conversations/conv_029358.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7702-96101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-96101.flac |",
-      "real_speaker_id": "7702",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-112761.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 0
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-      "utterance_id": "957-130588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.182695934529983,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-96101.flac |",
-      "real_speaker_id": "7702",
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-      "real_speaker_id": "6937",
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-    {
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-      "utterance_id": "957-132568",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7702/laugh/0078.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6937/laugh/0052.wav",
-      "duration": 1.52,
-      "start_time": 18.692411618176322,
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-    {
-      "event_class": "cough",
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-      "duration": 1.56,
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-      "speaker_id": "957"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029362.json b/conversations/conv_029362.json
deleted file mode 100644
index d85866f2e3b130af69e8bc2aa5eeb587a669e67a..0000000000000000000000000000000000000000
--- a/conversations/conv_029362.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.537979771002952,
-      "duration": 4.537979771002952,
-      "start_frame": 0,
-      "duration_frames": 72607,
-      "overlap": false,
-      "utterance_id": "2988-173558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-173558.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.438973173368676,
-      "end_time": 11.42913277786143,
-      "duration": 5.990159604492753,
-      "start_frame": 87023,
-      "duration_frames": 95842,
-      "overlap": false,
-      "utterance_id": "6038-56778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.579511106480746,
-      "end_time": 17.83982644536621,
-      "duration": 6.260315338885465,
-      "start_frame": 185272,
-      "duration_frames": 100165,
-      "overlap": false,
-      "utterance_id": "2988-7587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-7587.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.30792298346047,
-      "end_time": 21.519007754926434,
-      "duration": 3.2110847714659636,
-      "start_frame": 292926,
-      "duration_frames": 51377,
-      "overlap": false,
-      "utterance_id": "7046-80695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-80695.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.322274931620235,
-      "end_time": 28.725828295492462,
-      "duration": 6.403553363872229,
-      "start_frame": 357156,
-      "duration_frames": 102456,
-      "overlap": false,
-      "utterance_id": "2988-173558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-173558.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 72607
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.3459885857202,
-      "end_time": 32.0,
-      "duration": 2.6540114142798004,
-      "start_frame": 469535,
-      "duration_frames": 42464,
-      "overlap": false,
-      "utterance_id": "6038-56778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 95842
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_9.wav",
-      "duration": 1.007687074829932,
-      "start_time": 7.568875065163436
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2988/laugh/0125.wav",
-      "duration": 1.1001914346699826,
-      "start_time": 2.2036033479020096,
-      "speaker_id": "2988"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2988/cough/0040.wav",
-      "duration": 0.31961556939056873,
-      "start_time": 0,
-      "speaker_id": "2988"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6038/laugh/0111.wav",
-      "duration": 0.5053925382625799,
-      "start_time": 5.951724143743542,
-      "speaker_id": "6038"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7046/laugh/0006.wav",
-      "duration": 1.2697929172991773,
-      "start_time": 19.7929970106588,
-      "speaker_id": "7046"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2988/laugh/0033.wav",
-      "duration": 1.32,
-      "start_time": 20.901866074249952,
-      "speaker_id": "2988"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6038/laugh/0054.wav",
-      "duration": 1.062997885595181,
-      "start_time": 30.759434630390395,
-      "speaker_id": "6038"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029363.json b/conversations/conv_029363.json
deleted file mode 100644
index 18516b2686781bf45ca2e4ed0500e77c7a1b99aa..0000000000000000000000000000000000000000
--- a/conversations/conv_029363.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.63298564535991,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.359872966705518,
-      "duration": 5.359872966705518,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6788-111574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-111574.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.800635042410498,
-      "end_time": 11.508365805561343,
-      "duration": 5.707730763150846,
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-      "overlap": false,
-      "utterance_id": "949-134657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134657.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.237869308545203,
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-      "overlap": false,
-      "utterance_id": "3357-28380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3357-28380.flac |",
-      "real_speaker_id": "3357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.60738998556598,
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-      "utterance_id": "6788-92420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-92420.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.989332261566826,
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-      "utterance_id": "3357-28380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3357-28380.flac |",
-      "real_speaker_id": "3357",
-      "position_frames": 83847
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 49171,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3357-28380.flac |",
-      "real_speaker_id": "3357",
-      "position_frames": 173473
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.0,
-      "start_time": 11.699857811403605,
-      "speaker_id": "949"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/949/cough/0110.wav",
-      "duration": 1.24,
-      "start_time": 4.546428456746724,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3357/cough/0029.wav",
-      "duration": 0.5488784036685004,
-      "start_time": 28.630957329943584,
-      "speaker_id": "3357"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029373.json b/conversations/conv_029373.json
deleted file mode 100644
index 3af923b86f24a3b7f86a1b6a80c9310264338c67..0000000000000000000000000000000000000000
--- a/conversations/conv_029373.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.451877096218062,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "608-123193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123193.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "7640-104647",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-104647.flac |",
-      "real_speaker_id": "7640",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "608",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7640",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123193.flac |",
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-      "position_frames": 67686
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "Cat",
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-      "speaker_id": "608"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029374.json b/conversations/conv_029374.json
deleted file mode 100644
index 0dca7caa9be2ade5fb499fb466b3ab6238816961..0000000000000000000000000000000000000000
--- a/conversations/conv_029374.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5228725810331465,
-      "duration": 3.5228725810331465,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8367-279366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279366.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.7439818143296892,
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-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4955-28245",
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/laugh/0027.wav",
-      "duration": 0.5650004458467215,
-      "start_time": 31.040881623547055,
-      "speaker_id": "4955"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029378.json b/conversations/conv_029378.json
deleted file mode 100644
index ee4b8ac43a57ea813cac538ca13c9fb2823d0d05..0000000000000000000000000000000000000000
--- a/conversations/conv_029378.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.838212853755722,
-      "duration": 5.838212853755722,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3288-7156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3288-7156.flac |",
-      "real_speaker_id": "3288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.832523097387027,
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-      "duration": 5.3767931066624595,
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-      "utterance_id": "7073-83692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-83692.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.900715953161008,
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-      "duration_frames": 75185,
-      "overlap": true,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.346675198840472,
-      "end_time": 23.804544776717776,
-      "duration": 6.457869577877304,
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-      "duration_frames": 103325,
-      "overlap": true,
-      "utterance_id": "7073-83692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-83692.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 86028
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.917781247149385,
-      "end_time": 30.35541358621599,
-      "duration": 5.437632339066607,
-      "start_frame": 398684,
-      "duration_frames": 87002,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 75185
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.623055282240497,
-      "end_time": 32.0,
-      "duration": 1.3769447177595033,
-      "start_frame": 489968,
-      "duration_frames": 22031,
-      "overlap": false,
-      "utterance_id": "7073-83692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-83692.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 189353
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_1.wav",
-      "duration": 1.397437641723356,
-      "start_time": 6.271691601058031
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3258/laugh/0051.wav",
-      "duration": 0.7963640202161073,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3258/cough/0005.wav",
-      "duration": 0.5292134902753813,
-      "start_time": 30.54919939299839,
-      "speaker_id": "3258"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029381.json b/conversations/conv_029381.json
deleted file mode 100644
index f5574ea42e91f2e4cbdb30256c755859b15df219..0000000000000000000000000000000000000000
--- a/conversations/conv_029381.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.582292035301946,
-      "duration": 3.582292035301946,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6865-95969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95969.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.1162048105716273,
-      "end_time": 6.59436517577056,
-      "duration": 3.4781603651989323,
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-      "duration_frames": 55650,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36048.flac |",
-      "real_speaker_id": "4824",
-      "position_frames": 0
-    },
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-      "overlap": false,
-      "utterance_id": "6865-95959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95959.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.307490248297926,
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-      "overlap": false,
-      "utterance_id": "4824-36048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36048.flac |",
-      "real_speaker_id": "4824",
-      "position_frames": 55650
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.71896557001845,
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-      "duration": 4.814753100735901,
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-      "overlap": false,
-      "utterance_id": "6865-95969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95969.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 57316
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.910353042600683,
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-      "duration": 4.450526210991759,
-      "start_frame": 398565,
-      "duration_frames": 71208,
-      "overlap": false,
-      "utterance_id": "4824-36048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36048.flac |",
-      "real_speaker_id": "4824",
-      "position_frames": 115217
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.064498931847098,
-      "end_time": 32.0,
-      "duration": 1.9355010681529023,
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-      "duration_frames": 30968,
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-      "utterance_id": "6865-95963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95963.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
-      "duration": 20.061201814058958,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 4.467329230060587,
-      "speaker_id": "4824"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4824/laugh/0015.wav",
-      "duration": 1.12,
-      "start_time": 16.045241977500247,
-      "speaker_id": "4824"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029397.json b/conversations/conv_029397.json
deleted file mode 100644
index 1198100719adf0a43a3e63329f7d7d32eaffb57f..0000000000000000000000000000000000000000
--- a/conversations/conv_029397.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.751725758188945,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6032-58192.flac |",
-      "real_speaker_id": "6032",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.605523061346014,
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-      "utterance_id": "2448-163521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163521.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.2966124197145,
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-      "duration_frames": 74094,
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 67938
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.334986773672,
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-      "utterance_id": "2448-163517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163517.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 142032
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "6032-56222",
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-      "real_speaker_id": "6032",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "cough",
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-      "start_time": 21.04754390163413,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2448/cough/0076.wav",
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-      "start_time": 26.25457157856633,
-      "speaker_id": "8193"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029401.json b/conversations/conv_029401.json
deleted file mode 100644
index 5320412c074d333916a0852730af477f430018a5..0000000000000000000000000000000000000000
--- a/conversations/conv_029401.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "5983-39668",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39668.flac |",
-      "real_speaker_id": "5983",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2312-147629.flac |",
-      "real_speaker_id": "2312",
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-    {
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-    {
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1226/cough/0069.wav",
-      "duration": 0.6547432572028005,
-      "start_time": 22.06627245836981,
-      "speaker_id": "1226"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2312/laugh/0072.wav",
-      "duration": 1.16,
-      "start_time": 30.201747376088132,
-      "speaker_id": "2312"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029417.json b/conversations/conv_029417.json
deleted file mode 100644
index d7cbfc3d6aab167ae7da5df78d09bfa903cbf011..0000000000000000000000000000000000000000
--- a/conversations/conv_029417.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.6927419629223905,
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-      "overlap": false,
-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.80420144950728,
-      "end_time": 10.837238127881225,
-      "duration": 5.033036678373944,
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-      "overlap": false,
-      "utterance_id": "7492-99101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-99101.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.985756371518159,
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-      "duration": 4.571098464027526,
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-      "duration_frames": 73137,
-      "overlap": false,
-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 91083
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.942224761682507,
-      "end_time": 21.050665113361873,
-      "duration": 4.1084403516793655,
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-      "duration_frames": 65735,
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-      "utterance_id": "6209-34600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34600.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.88051928053305,
-      "end_time": 26.140169120051837,
-      "duration": 4.259649839518787,
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-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 164220
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.582622715906627,
-      "end_time": 32.0,
-      "duration": 5.417377284093373,
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-      "overlap": false,
-      "utterance_id": "7492-87279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-87279.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/84654.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6209/laugh/0082.wav",
-      "duration": 1.12,
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-      "speaker_id": "6209"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8867/cough/0007.wav",
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-      "start_time": 22.505387293602546,
-      "speaker_id": "8867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029421.json b/conversations/conv_029421.json
deleted file mode 100644
index c46f751e4a2fea51f1865de2f3e2d9ae1c63644c..0000000000000000000000000000000000000000
--- a/conversations/conv_029421.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.036557518717565,
-  "num_speakers": 3,
-  "overlap_rate": 0.6666666666666666,
-  "segments": [
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-      "utterance_id": "8222-274380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274380.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "utterance_id": "216-122451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122451.flac |",
-      "real_speaker_id": "216",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.84855427253011,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274380.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 49697
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.846360199015717,
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-      "duration": 3.666697258729226,
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-      "overlap": true,
-      "utterance_id": "216-122441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122441.flac |",
-      "real_speaker_id": "216",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.129731322282804,
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-      "utterance_id": "8222-274379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274379.flac |",
-      "real_speaker_id": "8222",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029426.json b/conversations/conv_029426.json
deleted file mode 100644
index 541d3fd3967f0f214b9e3cfcb79b01b55dafa327..0000000000000000000000000000000000000000
--- a/conversations/conv_029426.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5471-284440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-284440.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6032-58192.flac |",
-      "real_speaker_id": "6032",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2397-162239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162239.flac |",
-      "real_speaker_id": "2397",
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-    {
-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-      "utterance_id": "6032-56222",
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-      "position_frames": 67705
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-    {
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-  "background_events": [
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-      "start_time": 31.16,
-      "speaker_id": "5471"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029430.json b/conversations/conv_029430.json
deleted file mode 100644
index d04a04ef9708e28052de8c3082f43668c68e6a0b..0000000000000000000000000000000000000000
--- a/conversations/conv_029430.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1085-156170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-156170.flac |",
-      "real_speaker_id": "1085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1085-35680",
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-    {
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-      "utterance_id": "6173-94652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6173-94652.flac |",
-      "real_speaker_id": "6173",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.52,
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-      "speaker_id": "1085"
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-      "speaker_id": "1085"
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-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 23.125000901445066,
-      "speaker_id": "3379"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_029437.json b/conversations/conv_029437.json
deleted file mode 100644
index 5b27ac631d12d2f508a3430fec449b6bccb094fc..0000000000000000000000000000000000000000
--- a/conversations/conv_029437.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.2911270221510645,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-16048.flac |",
-      "real_speaker_id": "4705",
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-      "speaker_id": 1,
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-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 86290
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 73354
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
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-      "position_frames": 147559
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_029440.json b/conversations/conv_029440.json
deleted file mode 100644
index f0a6ae1c61d36a521aac6cb46c429cc4011e13ed..0000000000000000000000000000000000000000
--- a/conversations/conv_029440.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
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-    {
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-      "start_time": 20.11644575522091,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-158816.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_029456.json b/conversations/conv_029456.json
deleted file mode 100644
index 91de6eaf663a06fe4f11f57f433d40e479e25113..0000000000000000000000000000000000000000
--- a/conversations/conv_029456.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7672-96507.flac |",
-      "real_speaker_id": "7672",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64159.flac |",
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-      "real_speaker_id": "7672",
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-      "segment_id": "seg0005",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_029460.json b/conversations/conv_029460.json
deleted file mode 100644
index 0a8ad2db9be3ed367b12fac06f9537dc3df56466..0000000000000000000000000000000000000000
--- a/conversations/conv_029460.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "real_speaker_id": "4969",
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-    {
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-      "utterance_id": "1107-1042",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1166-136562",
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-      "duration": 1.36,
-      "start_time": 12.60580382460251,
-      "speaker_id": "1166"
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-      "event_class": "laugh",
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-      "duration": 0.6945147089404657,
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-      "speaker_id": "4969"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029467.json b/conversations/conv_029467.json
deleted file mode 100644
index 7f6c03c861dc601481c3f99135c8093300d51d4c..0000000000000000000000000000000000000000
--- a/conversations/conv_029467.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5246-30101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-30101.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.8439208861922465,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "5246-30101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-30101.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 57504
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.135294368241333,
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-      "utterance_id": "979-128678",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/979-128678.flac |",
-      "real_speaker_id": "979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.479072224750965,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.107850839861644,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8875-293959.flac |",
-      "real_speaker_id": "8875",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.4,
-      "start_time": 16.849197990415078,
-      "speaker_id": "5246"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029471.json b/conversations/conv_029471.json
deleted file mode 100644
index eae2363302d9c3607c7aca82d3b32e8635e2c965..0000000000000000000000000000000000000000
--- a/conversations/conv_029471.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "utterance_id": "1274-121770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121770.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6224-61958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-61958.flac |",
-      "real_speaker_id": "6224",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.916536715383607,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 83680
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6224-61958.flac |",
-      "real_speaker_id": "6224",
-      "position_frames": 104127
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_029476.json b/conversations/conv_029476.json
deleted file mode 100644
index 99af66fbc93eeef29eedd7b982087a75e6c2dcc7..0000000000000000000000000000000000000000
--- a/conversations/conv_029476.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7584-266228.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
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-      "real_speaker_id": "7584",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8168-116789",
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\ No newline at end of file
diff --git a/conversations/conv_029483.json b/conversations/conv_029483.json
deleted file mode 100644
index 84df7cb0078faaa3a0592d9af6728e077aa88d2e..0000000000000000000000000000000000000000
--- a/conversations/conv_029483.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1559-139353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0002",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 158585
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "duration": 0.8295389017058074,
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-      "speaker_id": "1559"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1168/laugh/0001.wav",
-      "duration": 0.7150964624654634,
-      "start_time": 30.966993598380984,
-      "speaker_id": "1168"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029488.json b/conversations/conv_029488.json
deleted file mode 100644
index b2a08c862a8e53cbd0c86e0dae1c5d29a5f079bd..0000000000000000000000000000000000000000
--- a/conversations/conv_029488.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119386.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.489617619912068,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 0
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-      "utterance_id": "6687-119386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119386.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 82247
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 16.144408229285045,
-      "end_time": 19.98515222854357,
-      "duration": 3.8407439992585255,
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-      "duration_frames": 61451,
-      "overlap": false,
-      "utterance_id": "6687-119383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119383.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.270535985576,
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-      "utterance_id": "3314-135987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-135987.flac |",
-      "real_speaker_id": "3314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.2446471944929,
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-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 78684
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.128750466723936,
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-      "utterance_id": "3314-159392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-159392.flac |",
-      "real_speaker_id": "3314",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_029495.json b/conversations/conv_029495.json
deleted file mode 100644
index 9614ce3a050472c1a4add55f30e28ac7c40a593e..0000000000000000000000000000000000000000
--- a/conversations/conv_029495.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5293-82020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5293-82020.flac |",
-      "real_speaker_id": "5293",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5293-82020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5293-82020.flac |",
-      "real_speaker_id": "5293",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2607-177749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177749.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.716073976411572,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177749.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 77650
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.06636339249852,
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-      "utterance_id": "5293-82020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5293-82020.flac |",
-      "real_speaker_id": "5293",
-      "position_frames": 119577
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "duration": 0.5634099299921664,
-      "start_time": 13.009270188798451,
-      "speaker_id": "5293"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029499.json b/conversations/conv_029499.json
deleted file mode 100644
index 3e7293679eca34d3b2d3eaa26a57ef914168936b..0000000000000000000000000000000000000000
--- a/conversations/conv_029499.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "6594-68896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68896.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.670481831986368,
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-      "utterance_id": "510-130103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130103.flac |",
-      "real_speaker_id": "510",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-88364.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130101.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.645155349563776,
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-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "real_speaker_id": "6594",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.534626258958493,
-      "end_time": 32.0,
-      "duration": 2.465373741041507,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-88364.flac |",
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-      "speaker_id": "7059"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/510/laugh/0097.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029505.json b/conversations/conv_029505.json
deleted file mode 100644
index e838021c7d3dc124cc6efae32e0b1b37a297ed77..0000000000000000000000000000000000000000
--- a/conversations/conv_029505.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.61344106813058,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.057693631878382,
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-      "overlap": false,
-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4598",
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-      "utterance_id": "1348-135832",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1348-135832.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 48923
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1348-135826.flac |",
-      "real_speaker_id": "1348",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "1348-135832",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1348-135832.flac |",
-      "real_speaker_id": "1348",
-      "position_frames": 75076
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8404/cough/0030.wav",
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-      "start_time": 0,
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-      "duration": 1.36,
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-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "speaker_id": "4598"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1348/laugh/0093.wav",
-      "duration": 0.8285146060989859,
-      "start_time": 27.765029541747236,
-      "speaker_id": "1348"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1348/laugh/0054.wav",
-      "duration": 1.2,
-      "start_time": 28.4262868195136,
-      "speaker_id": "1348"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029508.json b/conversations/conv_029508.json
deleted file mode 100644
index 434e16266fb84f2c84f81ded5ee20789525ab671..0000000000000000000000000000000000000000
--- a/conversations/conv_029508.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.293154336456155,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6499-91098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-91098.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.028575897989689,
-      "end_time": 9.617830020091876,
-      "duration": 4.589254122102187,
-      "start_frame": 80457,
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-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.290753538054865,
-      "end_time": 15.255178352033749,
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-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 73428
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.536265426761794,
-      "end_time": 21.382943553444832,
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-      "start_frame": 248580,
-      "duration_frames": 93546,
-      "overlap": false,
-      "utterance_id": "6499-87508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-87508.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.240522438642422,
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-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.358127003803958,
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-      "duration": 5.935027332652195,
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-      "duration_frames": 94960,
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-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 48133
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_10.wav",
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-      "start_time": 9.111764217886481
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_029509.json b/conversations/conv_029509.json
deleted file mode 100644
index 7fec0fb30af0815025cf09ae439402e4aef6c3f8..0000000000000000000000000000000000000000
--- a/conversations/conv_029509.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
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-      "utterance_id": "6373-65772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 106236
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.65115163238744,
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-      "utterance_id": "250-140277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-140277.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.27912988478579,
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-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 84611
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "250-142286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142286.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_029513.json b/conversations/conv_029513.json
deleted file mode 100644
index 0b2c732e05e510af208e6f40342462452e837885..0000000000000000000000000000000000000000
--- a/conversations/conv_029513.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1187-136241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136241.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39477.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.378948300118974,
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-      "overlap": false,
-      "utterance_id": "1800-142858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.843281133125856,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39477.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 96825
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1187-136238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136238.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.918742420642445,
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-      "duration": 3.323059349964936,
-      "start_frame": 446699,
-      "duration_frames": 53168,
-      "overlap": false,
-      "utterance_id": "5513-39476",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39476.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 0.42445171438109597,
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-      "utterance_id": "1187-136241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136241.flac |",
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-      "position_frames": 74238
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029522.json b/conversations/conv_029522.json
deleted file mode 100644
index 537ce56475f61d1e48430b79c43f5d4bae3c3353..0000000000000000000000000000000000000000
--- a/conversations/conv_029522.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.752710411844943,
-      "duration": 6.752710411844943,
-      "start_frame": 0,
-      "duration_frames": 108043,
-      "overlap": false,
-      "utterance_id": "7708-296091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-296091.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.179320965838716,
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-      "duration": 4.2052705725949595,
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-      "duration_frames": 67284,
-      "overlap": false,
-      "utterance_id": "7708-296091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-296091.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 108043
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1685-146849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146849.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-138076.flac |",
-      "real_speaker_id": "444",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.260353555414337,
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-      "utterance_id": "1685-146845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146845.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.595692820677655,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-138076.flac |",
-      "real_speaker_id": "444",
-      "position_frames": 95453
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1685/cough/0010.wav",
-      "duration": 0.7925729591421129,
-      "start_time": 14.93311058873671,
-      "speaker_id": "1685"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/444/laugh/0041.wav",
-      "duration": 0.6369764231114041,
-      "start_time": 20.53096295064293,
-      "speaker_id": "444"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029525.json b/conversations/conv_029525.json
deleted file mode 100644
index 7fd35a1adff9b6c2fe865c3a1e2d33b39729d2a9..0000000000000000000000000000000000000000
--- a/conversations/conv_029525.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1425-139290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139290.flac |",
-      "real_speaker_id": "1425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.4855130792003495,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-127742.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.56067219492513,
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-      "overlap": false,
-      "utterance_id": "1425-139291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139291.flac |",
-      "real_speaker_id": "1425",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.998492675952143,
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-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.604478726293685,
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-      "utterance_id": "1261-136350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-136350.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.382114455381434,
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-      "overlap": false,
-      "utterance_id": "1425-139291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139291.flac |",
-      "real_speaker_id": "1425",
-      "position_frames": 82021
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.581551335005706,
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-      "duration": 0.418448664994294,
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-      "utterance_id": "1261-136350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-136350.flac |",
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-      "position_frames": 79238
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Blender",
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-      "start_time": 0,
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-      "event_class": "cough",
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-      "duration": 1.12,
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_029529.json b/conversations/conv_029529.json
deleted file mode 100644
index 0fb91d8a8d72fabea4eb0c8cf835c9ad357563e3..0000000000000000000000000000000000000000
--- a/conversations/conv_029529.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1183-128659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-128659.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 6.717257367577386,
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-      "utterance_id": "7197-66277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1183-124566",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-124566.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.374415718220742,
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-      "overlap": false,
-      "utterance_id": "7197-66278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66278.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.292475284304402,
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-      "utterance_id": "1183-133256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-133256.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "speaker_id": "1183"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029533.json b/conversations/conv_029533.json
deleted file mode 100644
index a190a537f7a023ee862f73b934d104c2fdf464e1..0000000000000000000000000000000000000000
--- a/conversations/conv_029533.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "587-54108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-54108.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28257.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "742-128034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "4931",
-      "position_frames": 79792
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.899816411675733,
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-      "utterance_id": "742-128033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.59540659766577,
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-      "utterance_id": "587-41619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41619.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "laugh",
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-      "duration": 0.9570877380878555,
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-      "speaker_id": "4931"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029534.json b/conversations/conv_029534.json
deleted file mode 100644
index 9c367962027fbe979ca352b63415fa317fb77cb0..0000000000000000000000000000000000000000
--- a/conversations/conv_029534.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.943140731187125,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.518967638062845,
-      "duration": 6.518967638062845,
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-      "utterance_id": "8631-249866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-249866.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.108269782814151,
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-      "utterance_id": "6895-92805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92805.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.368822275166854,
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-      "utterance_id": "7994-258959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258959.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8631",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-96175.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 0
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8631/laugh/0082.wav",
-      "duration": 1.247840710633999,
-      "start_time": 18.006108577335358,
-      "speaker_id": "8631"
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029544.json b/conversations/conv_029544.json
deleted file mode 100644
index ca8c255f8ea93f946fc881bd39072c0bac7ae644..0000000000000000000000000000000000000000
--- a/conversations/conv_029544.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6270008288826956,
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-      "overlap": false,
-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.091646961212163,
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-      "utterance_id": "7795-105407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.438143190801794,
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-      "overlap": false,
-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 58032
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.843822481075506,
-      "end_time": 22.506472666899608,
-      "duration": 5.662650185824102,
-      "start_frame": 269501,
-      "duration_frames": 90602,
-      "overlap": false,
-      "utterance_id": "1767-142942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142942.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.36436059461652,
-      "end_time": 28.322123496771255,
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-      "utterance_id": "2817-142371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.43723637519379,
-      "end_time": 32.0,
-      "duration": 3.562763624806209,
-      "start_frame": 454995,
-      "duration_frames": 57004,
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-      "utterance_id": "1767-142942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142942.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 90602
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_1.wav",
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-      "speaker_id": "1767"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029548.json b/conversations/conv_029548.json
deleted file mode 100644
index f7280bd035a590ef325b71aba28f1c54ce3a2249..0000000000000000000000000000000000000000
--- a/conversations/conv_029548.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2691-156745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156745.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156755.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.93965979585792,
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-      "duration_frames": 78180,
-      "overlap": true,
-      "utterance_id": "7688-112187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-112187.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.821485627652685,
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-      "overlap": true,
-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 98685
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.495193666617666,
-      "end_time": 32.0,
-      "duration": 0.5048063333823336,
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-      "overlap": false,
-      "utterance_id": "2691-156755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156755.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 73862
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029552.json b/conversations/conv_029552.json
deleted file mode 100644
index 4b9f7c205a171716b724182d5947589f7e65b282..0000000000000000000000000000000000000000
--- a/conversations/conv_029552.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "duration_frames": 90487,
-      "overlap": false,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138028.flac |",
-      "real_speaker_id": "2989",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "332",
-      "position_frames": 90487
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.782540917170165,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121074.flac |",
-      "real_speaker_id": "57",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 163801
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "57-121742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121742.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/332/laugh/0022.wav",
-      "duration": 1.24,
-      "start_time": 28.532702743238502,
-      "speaker_id": "332"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029553.json b/conversations/conv_029553.json
deleted file mode 100644
index 512421272febefa5b809625a9d1024cf129d317c..0000000000000000000000000000000000000000
--- a/conversations/conv_029553.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.062104369341943,
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-      "utterance_id": "7956-245687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.9968197103643535,
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-      "real_speaker_id": "8771",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127083.flac |",
-      "real_speaker_id": "3503",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3503",
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-      "segment_id": "seg0005",
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-      "speaker_id": "7956"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029563.json b/conversations/conv_029563.json
deleted file mode 100644
index db3fd7b3d47dda10c9696d6c79a6bffcc2d4da20..0000000000000000000000000000000000000000
--- a/conversations/conv_029563.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84200.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141642.flac |",
-      "real_speaker_id": "1535",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "8044-84206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84206.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139225.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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\ No newline at end of file
diff --git a/conversations/conv_029564.json b/conversations/conv_029564.json
deleted file mode 100644
index 4d70ad0b240dfe0fa8a3a5d0f9302aeb97db5271..0000000000000000000000000000000000000000
--- a/conversations/conv_029564.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-137004.flac |",
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-      "real_speaker_id": "1754",
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-      "real_speaker_id": "7188",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_029568.json b/conversations/conv_029568.json
deleted file mode 100644
index 6757141af08e2974f19bb091dd890d9cc1f7a219..0000000000000000000000000000000000000000
--- a/conversations/conv_029568.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3567-7276.flac |",
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_029572.json b/conversations/conv_029572.json
deleted file mode 100644
index 655f13fd615ba1e2541a6b060fc0e6e9d3b2e965..0000000000000000000000000000000000000000
--- a/conversations/conv_029572.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-66347.flac |",
-      "real_speaker_id": "5802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.105760859020886,
-      "end_time": 24.11121700959268,
-      "duration": 6.00545615057179,
-      "start_frame": 289692,
-      "duration_frames": 96087,
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-      "utterance_id": "5802-76044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-76044.flac |",
-      "real_speaker_id": "5802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.65197543151999,
-      "end_time": 28.132559766177028,
-      "duration": 3.4805843346570384,
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-      "utterance_id": "79-121541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
-      "position_frames": 186344
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.307783776748007,
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-      "duration": 3.692216223251993,
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-      "utterance_id": "5802-66347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-66347.flac |",
-      "real_speaker_id": "5802",
-      "position_frames": 82010
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
-      "duration": 1.7417913832199547,
-      "start_time": 26.25482699884162
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/79/laugh/0033.wav",
-      "duration": 0.9835870427306183,
-      "start_time": 11.319830446754127,
-      "speaker_id": "79"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5802/laugh/0083.wav",
-      "duration": 0.92,
-      "start_time": 30.707137744855633,
-      "speaker_id": "5802"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029575.json b/conversations/conv_029575.json
deleted file mode 100644
index 88590465094d7e4f7f869ba0eb029d3aa57ecc14..0000000000000000000000000000000000000000
--- a/conversations/conv_029575.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.527285030551216,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.6211413459574215,
-      "duration": 5.6211413459574215,
-      "start_frame": 0,
-      "duration_frames": 89938,
-      "overlap": false,
-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.448809367672489,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126832.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.803264141730214,
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-      "start_frame": 220852,
-      "duration_frames": 84342,
-      "overlap": false,
-      "utterance_id": "779-123708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123708.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.365077659608843,
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-      "duration": 4.898240129616209,
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-      "overlap": false,
-      "utterance_id": "464-126832",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126832.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 97726
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.33515826287498,
-      "end_time": 28.88771897419741,
-      "duration": 3.5525607113224273,
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-      "duration_frames": 56840,
-      "overlap": false,
-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 89938
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.907985557263274,
-      "end_time": 31.527285030551216,
-      "duration": 1.619299473287942,
-      "start_frame": 478527,
-      "duration_frames": 25908,
-      "overlap": true,
-      "utterance_id": "464-126832",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126832.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 176097
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/464/laugh/0002.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.88,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5328/laugh/0023.wav",
-      "duration": 0.6357049544124037,
-      "start_time": 24.493689355632277,
-      "speaker_id": "5328"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029587.json b/conversations/conv_029587.json
deleted file mode 100644
index 01deb60b25ec7abedc0d10e24d01a6620e5ca636..0000000000000000000000000000000000000000
--- a/conversations/conv_029587.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.613138955836123,
-      "duration": 4.613138955836123,
-      "start_frame": 0,
-      "duration_frames": 73810,
-      "overlap": false,
-      "utterance_id": "7121-86787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-86787.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.362844747374637,
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-      "overlap": false,
-      "utterance_id": "6395-87997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-87997.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "331-884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-884.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.804529173270378,
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-      "overlap": false,
-      "utterance_id": "6395-87997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-87997.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 64326
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.320657449068676,
-      "end_time": 26.54908623766754,
-      "duration": 6.228428788598865,
-      "start_frame": 325130,
-      "duration_frames": 99654,
-      "overlap": false,
-      "utterance_id": "7121-86787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-86787.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 73810
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.40113989261905,
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-      "duration": 4.5988601073809505,
-      "start_frame": 438418,
-      "duration_frames": 73581,
-      "overlap": false,
-      "utterance_id": "331-132019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-132019.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7121/cough/0082.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/331/cough/0104.wav",
-      "duration": 0.5226506963253881,
-      "start_time": 9.437937151631568,
-      "speaker_id": "331"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6395/laugh/0049.wav",
-      "duration": 0.96,
-      "start_time": 15.620137869884756,
-      "speaker_id": "6395"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029591.json b/conversations/conv_029591.json
deleted file mode 100644
index 8d7584bcc01490b11e2fdc9fd91ed4d488885f74..0000000000000000000000000000000000000000
--- a/conversations/conv_029591.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.214445410792568,
-      "duration": 4.214445410792568,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.778544632665557,
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-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
-      "position_frames": 67431
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.23031397168045,
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-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
-      "position_frames": 162214
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.881832661373256,
-      "end_time": 24.785397518366143,
-      "duration": 3.903564856992888,
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-      "duration_frames": 62457,
-      "overlap": true,
-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.534169566167677,
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-      "duration_frames": 77354,
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-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 68911
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.727766516668613,
-      "end_time": 32.0,
-      "duration": 1.2722334833313873,
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-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
-      "position_frames": 236077
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
-      "duration": 1.0019274376417233,
-      "start_time": 1.0652552937808297
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3779/laugh/0070.wav",
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-      "start_time": 10.93071628700803,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3559/laugh/0087.wav",
-      "duration": 0.84,
-      "start_time": 9.833482663193994,
-      "speaker_id": "3559"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029600.json b/conversations/conv_029600.json
deleted file mode 100644
index c71dfef44d3c03ef091db12ef431f1a0aee67780..0000000000000000000000000000000000000000
--- a/conversations/conv_029600.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.5454813481985985,
-      "duration": 5.5454813481985985,
-      "start_frame": 0,
-      "duration_frames": 88727,
-      "overlap": false,
-      "utterance_id": "3021-121438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.157107494961676,
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-      "duration_frames": 73969,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-173558.flac |",
-      "real_speaker_id": "2988",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 88727
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.347242798584716,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-7587.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121440.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "2988-173558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-173558.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 73969
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3021/laugh/0034.wav",
-      "duration": 1.12,
-      "start_time": 15.931274417309174,
-      "speaker_id": "3021"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3021/laugh/0165.wav",
-      "duration": 1.2281846251631188,
-      "start_time": 20.523123771090077,
-      "speaker_id": "3021"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_029616.json b/conversations/conv_029616.json
deleted file mode 100644
index 06f53de10c902b571b1055cea00f28dac8b0196a..0000000000000000000000000000000000000000
--- a/conversations/conv_029616.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 6.223103435704629,
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-      "overlap": false,
-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.81802662949717,
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-      "duration": 6.662046878996341,
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-      "utterance_id": "359-128761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 13.719502762147913,
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-      "overlap": false,
-      "utterance_id": "7392-94500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-94500.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.540245135992876,
-      "end_time": 25.786100251202292,
-      "duration": 6.245855115209418,
-      "start_frame": 312643,
-      "duration_frames": 99933,
-      "overlap": false,
-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 99569
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.279113855559753,
-      "end_time": 32.0,
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-      "utterance_id": "359-128761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 106592
-    }
-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
-      "duration": 4.12024226770155,
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "event_class": "cough",
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-      "duration": 1.065970230945897,
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-      "speaker_id": "359"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029620.json b/conversations/conv_029620.json
deleted file mode 100644
index 71e1aac5511f7fbadf8843b91ff7beac5d3e5332..0000000000000000000000000000000000000000
--- a/conversations/conv_029620.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6006-60480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60480.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126829.flac |",
-      "real_speaker_id": "451",
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-      "overlap": true,
-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.197311564496623,
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-      "utterance_id": "6006-60489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60489.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 99094
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "451-126829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126829.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 105170
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.850016248782026,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1809/laugh/0037.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "1809"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029636.json b/conversations/conv_029636.json
deleted file mode 100644
index eb6ee0e764a3ea410144c6e7989b47a625211b8b..0000000000000000000000000000000000000000
--- a/conversations/conv_029636.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.94579723094577,
-      "end_time": 9.808673181731132,
-      "duration": 4.862875950785362,
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-      "duration_frames": 77806,
-      "overlap": false,
-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 77083
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.49346176783694,
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-      "duration_frames": 89247,
-      "overlap": false,
-      "utterance_id": "245-122648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.690014280552518,
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-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 77706
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.633020690542438,
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-      "utterance_id": "245-122648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 89247
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1166/laugh/0091.wav",
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-      "speaker_id": "1166"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029641.json b/conversations/conv_029641.json
deleted file mode 100644
index 3cebe2a81e57121d02ca4f848857d19d9b188d66..0000000000000000000000000000000000000000
--- a/conversations/conv_029641.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.1722419247909865,
-      "duration": 4.1722419247909865,
-      "start_frame": 0,
-      "duration_frames": 66755,
-      "overlap": false,
-      "utterance_id": "6883-79967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6883-79967.flac |",
-      "real_speaker_id": "6883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.4059389482017135,
-      "end_time": 7.735155811615659,
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-      "utterance_id": "1603-139325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139325.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.963922879770707,
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-      "start_frame": 127422,
-      "duration_frames": 73569,
-      "overlap": true,
-      "utterance_id": "6883-79964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6883-79964.flac |",
-      "real_speaker_id": "6883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "2246",
-      "position_frames": 67693
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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\ No newline at end of file
diff --git a/conversations/conv_029657.json b/conversations/conv_029657.json
deleted file mode 100644
index 14206c8bc66094da5750d997e4607b75b1e4f652..0000000000000000000000000000000000000000
--- a/conversations/conv_029657.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2004",
-      "position_frames": 0
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-      "position_frames": 0
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-      "position_frames": 196076
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\ No newline at end of file
diff --git a/conversations/conv_029661.json b/conversations/conv_029661.json
deleted file mode 100644
index 14949931a3e08541491a6fccfde9a13ae46d7c39..0000000000000000000000000000000000000000
--- a/conversations/conv_029661.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_029666.json b/conversations/conv_029666.json
deleted file mode 100644
index 007f91b8e1ac16e2f60208a69e67d3dbe3702a32..0000000000000000000000000000000000000000
--- a/conversations/conv_029666.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6895/laugh/0001.wav",
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-      "speaker_id": "6895"
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 0.4199155570720059,
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-      "speaker_id": "6895"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6895/laugh/0058.wav",
-      "duration": 0.88,
-      "start_time": 30.510433340742455,
-      "speaker_id": "6895"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029676.json b/conversations/conv_029676.json
deleted file mode 100644
index 564e24515cf9d678cb16427b00a9f047d0cb2736..0000000000000000000000000000000000000000
--- a/conversations/conv_029676.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.588519700947943,
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-      "duration_frames": 89416,
-      "overlap": false,
-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.381633862937384,
-      "end_time": 12.313561175663033,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-24758.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "3630-11612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-11612.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 18.177397381941788,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123272.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.339645805775845,
-      "end_time": 28.003939013741103,
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-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.71793608691096,
-      "end_time": 32.0,
-      "duration": 3.28206391308904,
-      "start_frame": 459486,
-      "duration_frames": 52513,
-      "overlap": false,
-      "utterance_id": "3630-24758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-24758.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 94910
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 21.103805679269517,
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-  "foreground_events": [
-    {
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/886/laugh/0089.wav",
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.9024925041764,
-      "speaker_id": "3630"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029677.json b/conversations/conv_029677.json
deleted file mode 100644
index deca89f1fe077bd15b6881988c928f995e999a67..0000000000000000000000000000000000000000
--- a/conversations/conv_029677.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.455559091158307,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "4216-10192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
-      "real_speaker_id": "4216",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.609578122131549,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1513-140221.flac |",
-      "real_speaker_id": "1513",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "8396-120281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120281.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.728953489643757,
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-      "utterance_id": "4216-10192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
-      "real_speaker_id": "4216",
-      "position_frames": 97806
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.837174736131228,
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-      "overlap": false,
-      "utterance_id": "1513-140222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1513-140222.flac |",
-      "real_speaker_id": "1513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.60396812223531,
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-      "start_frame": 489663,
-      "duration_frames": 13625,
-      "overlap": true,
-      "utterance_id": "1513-140221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1513-140221.flac |",
-      "real_speaker_id": "1513",
-      "position_frames": 67593
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1513/laugh/0091.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "1513"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029682.json b/conversations/conv_029682.json
deleted file mode 100644
index 4d3361fe892099f9545acf6a552bcf50a9376e55..0000000000000000000000000000000000000000
--- a/conversations/conv_029682.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2356-154885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154885.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": true,
-      "utterance_id": "1498-140040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140040.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
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-      "utterance_id": "8006-112592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
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-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
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-      "utterance_id": "8006-112593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112593.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.346495436925974,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 72427
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.362437618453924,
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-      "utterance_id": "1498-140041",
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-      "real_speaker_id": "1498",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 17.006328950902745,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8006/cough/0018.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8006"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029689.json b/conversations/conv_029689.json
deleted file mode 100644
index 7992220a9ad2f510ef493db396e83405eb683650..0000000000000000000000000000000000000000
--- a/conversations/conv_029689.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "1084-145077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-145077.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "779",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179156.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123710.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179156.flac |",
-      "real_speaker_id": "2159",
-      "position_frames": 91094
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-      "speaker_id": "2159"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029694.json b/conversations/conv_029694.json
deleted file mode 100644
index ec86ba6819009d2c160ac92b493e28ddc4f00759..0000000000000000000000000000000000000000
--- a/conversations/conv_029694.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.244715812512602,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-149236.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-133067.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-111766.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 15.500478085287602,
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-      "speaker_id": 2,
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-      "utterance_id": "1323-138548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138548.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138548.flac |",
-      "real_speaker_id": "1323",
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\ No newline at end of file
diff --git a/conversations/conv_029698.json b/conversations/conv_029698.json
deleted file mode 100644
index b6b5eef16af1ec734ebf4c3b5e224ac78bcd7e16..0000000000000000000000000000000000000000
--- a/conversations/conv_029698.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.910103874647625,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2341-151701.flac |",
-      "real_speaker_id": "2341",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170950.flac |",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_029699.json b/conversations/conv_029699.json
deleted file mode 100644
index aa5b422f4d21bf92187d411c8beae97ed7ec6d76..0000000000000000000000000000000000000000
--- a/conversations/conv_029699.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
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-    {
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-      "start_time": 5.903644823047564,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132073.flac |",
-      "real_speaker_id": "203",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132073.flac |",
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-      "position_frames": 64636
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-      "real_speaker_id": "2817",
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-      "segment_id": "seg0006",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_029704.json b/conversations/conv_029704.json
deleted file mode 100644
index 9e05bfb5122afdaa66b0163166c83a46a62662de..0000000000000000000000000000000000000000
--- a/conversations/conv_029704.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/791-127519.flac |",
-      "real_speaker_id": "791",
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-    {
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-      "utterance_id": "3905-149791",
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-      "position_frames": 63583
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "2149",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 166597
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
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-      "start_time": 28.998248067834957
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "3905"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029708.json b/conversations/conv_029708.json
deleted file mode 100644
index 2153fc5ed1007cac77a4057d24b820aa73e15961..0000000000000000000000000000000000000000
--- a/conversations/conv_029708.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.079127688686728,
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-      "duration_frames": 98636,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-17347.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125272.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 99201
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.99517776495622,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-17347.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 98636
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.368168875505543,
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-      "duration": 2.6318311244944574,
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-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 195416
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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\ No newline at end of file
diff --git a/conversations/conv_029712.json b/conversations/conv_029712.json
deleted file mode 100644
index 22bc9c81f3bb29f26a561e5b264b152dec464196..0000000000000000000000000000000000000000
--- a/conversations/conv_029712.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "737-123448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2512-157242.flac |",
-      "real_speaker_id": "2512",
-      "position_frames": 0
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-      "utterance_id": "6373-65772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "737-123441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2512-157480.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "737"
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-      "speaker_id": "737"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029719.json b/conversations/conv_029719.json
deleted file mode 100644
index 6a99f7745865c549dd16a1b4ac94a7dcb788f5ee..0000000000000000000000000000000000000000
--- a/conversations/conv_029719.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3289-171109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171109.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8722-296473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8722-296473.flac |",
-      "real_speaker_id": "8722",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171108.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171109.flac |",
-      "real_speaker_id": "3289",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "2001",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 4.67346209549742,
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-      "utterance_id": "8722-296473",
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-      "position_frames": 63384
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "duration": 0.8,
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-}
\ No newline at end of file
diff --git a/conversations/conv_029724.json b/conversations/conv_029724.json
deleted file mode 100644
index bdab4f1a38f1a2249cde52044ce6d82d987eea6b..0000000000000000000000000000000000000000
--- a/conversations/conv_029724.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
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-      "end_time": 4.095056407885242,
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-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.210974962059878,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5720-48302.flac |",
-      "real_speaker_id": "5720",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.456396490814491,
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-      "duration_frames": 58171,
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-      "utterance_id": "534-123059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-123059.flac |",
-      "real_speaker_id": "534",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "5720-48807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5720-48807.flac |",
-      "real_speaker_id": "5720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.512867627902317,
-      "end_time": 32.0,
-      "duration": 4.487132372097683,
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-      "overlap": false,
-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 157961
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_6.wav",
-      "duration": 1.2077777777777778,
-      "start_time": 1.0882783672311538
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
-      "duration": 0.22993197278911565,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2364/laugh/0060.wav",
-      "duration": 1.0024917230116421,
-      "start_time": 0,
-      "speaker_id": "2364"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/534/laugh/0027.wav",
-      "duration": 0.6186526739855751,
-      "start_time": 16.30144007046268,
-      "speaker_id": "534"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029728.json b/conversations/conv_029728.json
deleted file mode 100644
index 3bd8eda8e44e9d52869ee62e63f4ebd32e404678..0000000000000000000000000000000000000000
--- a/conversations/conv_029728.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.521291441678944,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.368629152452342,
-      "duration": 4.368629152452342,
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-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.560068803117556,
-      "end_time": 7.928760027440162,
-      "duration": 3.368691224322606,
-      "start_frame": 72961,
-      "duration_frames": 53899,
-      "overlap": false,
-      "utterance_id": "1246-124548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-124548.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.067828259963903,
-      "end_time": 13.9888600596614,
-      "duration": 5.921031799697497,
-      "start_frame": 129085,
-      "duration_frames": 94736,
-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 69898
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1246-124548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-124548.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 53899
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.508629736169976,
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-      "duration": 4.7131128059048395,
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-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 164634
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.459593050326593,
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-      "duration": 4.2871608411916,
-      "start_frame": 407353,
-      "duration_frames": 68594,
-      "overlap": true,
-      "utterance_id": "5126-36956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-36956.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.036205286892333,
-      "end_time": 31.521291441678944,
-      "duration": 1.485086154786611,
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-      "duration_frames": 23761,
-      "overlap": true,
-      "utterance_id": "1246-135815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-135815.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 21.834638504823307,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 1.18,
-      "start_time": 24.08671710580887,
-      "speaker_id": "5126"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1246/laugh/0031.wav",
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-      "event_class": "cough",
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-      "duration": 0.9676845269141516,
-      "start_time": 28.930332767243584,
-      "speaker_id": "1246"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029732.json b/conversations/conv_029732.json
deleted file mode 100644
index f581f26804ad0ba89035fcf6aa903f5d4525b182..0000000000000000000000000000000000000000
--- a/conversations/conv_029732.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.478404763961798,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.583528109167756,
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-      "overlap": false,
-      "utterance_id": "7337-92819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.443350777249082,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-130164.flac |",
-      "real_speaker_id": "1195",
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "6892-256226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256226.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.504504161972726,
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-      "utterance_id": "7337-89742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-89742.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.920295209654533,
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-      "duration_frames": 71295,
-      "overlap": false,
-      "utterance_id": "1195-37134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-37134.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.719227639567166,
-      "end_time": 31.478404763961798,
-      "duration": 4.759177124394631,
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-      "duration_frames": 76146,
-      "overlap": false,
-      "utterance_id": "6892-256224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256224.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7337/laugh/0099.wav",
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-      "speaker_id": "7337"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6892/laugh/0118.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "6892"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6892/cough/0091.wav",
-      "duration": 1.3358193924579267,
-      "start_time": 25.20918833710456,
-      "speaker_id": "6892"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029733.json b/conversations/conv_029733.json
deleted file mode 100644
index 337b3ee4248cd047533880aadafeba7a15b3696c..0000000000000000000000000000000000000000
--- a/conversations/conv_029733.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.50757937684751,
-      "duration": 5.50757937684751,
-      "start_frame": 0,
-      "duration_frames": 88121,
-      "overlap": false,
-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.827866741474546,
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-      "duration_frames": 90327,
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-      "utterance_id": "764-132280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132280.flac |",
-      "real_speaker_id": "764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.18765873546012,
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-      "utterance_id": "764-132280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132280.flac |",
-      "real_speaker_id": "764",
-      "position_frames": 90327
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.057224252392828,
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-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 88121
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.704134945909196,
-      "end_time": 32.0,
-      "duration": 1.2958650540908039,
-      "start_frame": 491266,
-      "duration_frames": 20733,
-      "overlap": false,
-      "utterance_id": "7318-96168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
-      "duration": 0.19419501133786848,
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4019/laugh/0071.wav",
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 17.835666198010976,
-      "speaker_id": "764"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029745.json b/conversations/conv_029745.json
deleted file mode 100644
index 6fb455b67433857f36d942ffb3684d6b36286ca2..0000000000000000000000000000000000000000
--- a/conversations/conv_029745.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 6.603951764528581,
-      "start_frame": 0,
-      "duration_frames": 105663,
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-      "utterance_id": "927-132466",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-119253.flac |",
-      "real_speaker_id": "231",
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-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_029749.json b/conversations/conv_029749.json
deleted file mode 100644
index 07fd913bb7cf5651e3aa62a58f22c66585fe9e20..0000000000000000000000000000000000000000
--- a/conversations/conv_029749.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "217-122443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/217-122443.flac |",
-      "real_speaker_id": "217",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154736.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
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-      "utterance_id": "217-122443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/217-122443.flac |",
-      "real_speaker_id": "217",
-      "position_frames": 85493
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.023810028602238,
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-      "utterance_id": "6324-64063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.754749314733854,
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-      "utterance_id": "2427-154673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154673.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154736.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 107466
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_029753.json b/conversations/conv_029753.json
deleted file mode 100644
index 3ac73235a841b1547a9638e54e301bf4ed46a00b..0000000000000000000000000000000000000000
--- a/conversations/conv_029753.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 0
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-      "real_speaker_id": "2416",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 64761
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5700-51744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51744.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 171978
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-  "background_events": [
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-      "event_class": "Frying",
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-      "speaker_id": "5700"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029758.json b/conversations/conv_029758.json
deleted file mode 100644
index 6a4cb20bc2cbf2a14385f825c8235677db2bbcfc..0000000000000000000000000000000000000000
--- a/conversations/conv_029758.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.09408595916673,
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-      "utterance_id": "3242-8112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3242-8112.flac |",
-      "real_speaker_id": "3242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-57446.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "position_frames": 85865
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3242-67153.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "start_time": 18.821739443435025,
-      "speaker_id": "3242"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6476/laugh/0079.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3242/laugh/0070.wav",
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-      "speaker_id": "3242"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029765.json b/conversations/conv_029765.json
deleted file mode 100644
index beefa5e7b961fcd3494ae24680b584817d215aeb..0000000000000000000000000000000000000000
--- a/conversations/conv_029765.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
-      "end_time": 3.298832643444689,
-      "duration": 3.298832643444689,
-      "start_frame": 0,
-      "duration_frames": 52781,
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-      "utterance_id": "6411-58876",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 105381
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6120/laugh/0014.wav",
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-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 0.8719186834552484,
-      "start_time": 31.12808131654475,
-      "speaker_id": "3109"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029769.json b/conversations/conv_029769.json
deleted file mode 100644
index 5753d397d63e7c1e4fc93e21f752340d5fd49af6..0000000000000000000000000000000000000000
--- a/conversations/conv_029769.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2208-10076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.116416827817353,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20048.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
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-      "utterance_id": "2740-162051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 60979
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "speaker_id": "2740"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029773.json b/conversations/conv_029773.json
deleted file mode 100644
index b8c26a137d848c0c7bac80a37f2ce021bba51142..0000000000000000000000000000000000000000
--- a/conversations/conv_029773.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-141428.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "6436",
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-      "utterance_id": "2448-163517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163517.flac |",
-      "real_speaker_id": "2448",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-285137.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6436-104980",
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-      "real_speaker_id": "6436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "2448-163517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163517.flac |",
-      "real_speaker_id": "2448",
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_029786.json b/conversations/conv_029786.json
deleted file mode 100644
index bd3e9fcbb13b7092c4731b697aecf78621397fe2..0000000000000000000000000000000000000000
--- a/conversations/conv_029786.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "4217",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "position_frames": 182825
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9955.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "duration": 2.3944559597360957,
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-      "utterance_id": "8545-287671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-287671.flac |",
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-      "position_frames": 0
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-      "speaker_id": "8545"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029790.json b/conversations/conv_029790.json
deleted file mode 100644
index d4b549ca15ac5b0f430d3bba3eb19dfb39028ef0..0000000000000000000000000000000000000000
--- a/conversations/conv_029790.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.963029163698735,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 111380
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.109306896184393,
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-      "utterance_id": "215-122798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-122798.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.701866944626882,
-      "end_time": 30.963029163698735,
-      "duration": 6.261162219071854,
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-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 175726
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-      "event_class": "Frying",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_029801.json b/conversations/conv_029801.json
deleted file mode 100644
index 781b7418d02d2e5be5f2328bad7334e684a12c79..0000000000000000000000000000000000000000
--- a/conversations/conv_029801.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "4595-45218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4595-45218.flac |",
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-      "real_speaker_id": "4595",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "4356",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4595-45218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4595-45218.flac |",
-      "real_speaker_id": "4595",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029817.json b/conversations/conv_029817.json
deleted file mode 100644
index 522b948e8e098c9a2e5c201d8061631e664fd1ba..0000000000000000000000000000000000000000
--- a/conversations/conv_029817.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "4415-16759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "7733",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-129790.flac |",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "4415",
-      "position_frames": 179326
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "position_frames": 93094
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_029821.json b/conversations/conv_029821.json
deleted file mode 100644
index 9804c14f63ab6ee6db6cc46cc02128f29a6193a6..0000000000000000000000000000000000000000
--- a/conversations/conv_029821.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3686-171133",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_029826.json b/conversations/conv_029826.json
deleted file mode 100644
index f5e128daa0f631b82d995a61ec6e67896381e5e5..0000000000000000000000000000000000000000
--- a/conversations/conv_029826.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.173147083494786,
-  "num_speakers": 3,
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-  "foreground_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_029830.json b/conversations/conv_029830.json
deleted file mode 100644
index ef5f36e1aaabda32c4c95143078ca84511c57439..0000000000000000000000000000000000000000
--- a/conversations/conv_029830.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "3318",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029837.json b/conversations/conv_029837.json
deleted file mode 100644
index 31f5da35d768c0846ab17a51437a723d701cb9d9..0000000000000000000000000000000000000000
--- a/conversations/conv_029837.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 0
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-      "position_frames": 80117
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_029840.json b/conversations/conv_029840.json
deleted file mode 100644
index 02d63595755c8ddfc7add941c7313be354d145d0..0000000000000000000000000000000000000000
--- a/conversations/conv_029840.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 65472
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-144137.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 160658
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-144137.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 74487
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.66068818106318,
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-      "duration": 3.9981780924982466,
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 217454
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
-      "duration": 3.9908107505368764,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_3.wav",
-      "duration": 1.3247845804988663,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5063/laugh/0005.wav",
-      "duration": 1.44,
-      "start_time": 0,
-      "speaker_id": "5063"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5063/cough/0011.wav",
-      "duration": 0.6738361855053809,
-      "start_time": 16.512745443966963,
-      "speaker_id": "5063"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3109/cough/0081.wav",
-      "duration": 0.3748287987094329,
-      "start_time": 27.744835194556323,
-      "speaker_id": "3109"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029856.json b/conversations/conv_029856.json
deleted file mode 100644
index 5be3a1c126ea2dc848c4e72d7e5a5d6ebf3ebe62..0000000000000000000000000000000000000000
--- a/conversations/conv_029856.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8264229453652328,
-      "duration": 3.8264229453652328,
-      "start_frame": 0,
-      "duration_frames": 61222,
-      "overlap": false,
-      "utterance_id": "404-132015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132015.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.4687642409204065,
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-      "utterance_id": "3989-182394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182394.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.975574006425191,
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-      "overlap": false,
-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 15.897806623085456,
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-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 87805
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132014.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.26657614788453,
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-      "duration": 2.7334238521154717,
-      "start_frame": 468265,
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-      "utterance_id": "3989-182394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182394.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 84415
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "404"
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-      "speaker_id": "404"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029860.json b/conversations/conv_029860.json
deleted file mode 100644
index 5c2d070e96a668288ff04220c723b9789ae0376c..0000000000000000000000000000000000000000
--- a/conversations/conv_029860.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4277-185519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185519.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 0
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-      "duration_frames": 51505,
-      "overlap": false,
-      "utterance_id": "4277-185519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185519.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 91101
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.332218997159245,
-      "end_time": 21.17508955683309,
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-      "utterance_id": "4836-26485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 87475
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.109400221950914,
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-      "utterance_id": "4277-185517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185517.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.109788001858739,
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-      "duration_frames": 49756,
-      "overlap": false,
-      "utterance_id": "7933-113272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-113272.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
-      "duration": 0.2245124716553288,
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_029867.json b/conversations/conv_029867.json
deleted file mode 100644
index 33a6980547f7f6ffed93e20325b1b0525c65a2fe..0000000000000000000000000000000000000000
--- a/conversations/conv_029867.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "716-129582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129582.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.174084293312066,
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-      "utterance_id": "6836-61803",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61803.flac |",
-      "real_speaker_id": "6836",
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 80692,
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-      "utterance_id": "716-129581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 18.19920422340355,
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-    {
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-    {
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-  "paralinguistic_events": [
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-      "duration": 0.7937109494505035,
-      "start_time": 23.536160218321886,
-      "speaker_id": "716"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/716/cough/0046.wav",
-      "duration": 0.49010458664898016,
-      "start_time": 24.018308396138004,
-      "speaker_id": "716"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029871.json b/conversations/conv_029871.json
deleted file mode 100644
index 007e15a6063ba192e5518392c9b77f4cf4052f81..0000000000000000000000000000000000000000
--- a/conversations/conv_029871.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3914-10088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.461713661582969,
-      "end_time": 12.800010051358168,
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-      "utterance_id": "1535-141644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141644.flac |",
-      "real_speaker_id": "1535",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 13.004471361630838,
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-      "utterance_id": "3914-10089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.633903377952922,
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-      "duration_frames": 71998,
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-      "utterance_id": "1535-141644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141644.flac |",
-      "real_speaker_id": "1535",
-      "position_frames": 101412
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.804907950415725,
-      "end_time": 27.77383653126035,
-      "duration": 3.968928580844626,
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-      "duration_frames": 63502,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.20559322917952,
-      "end_time": 32.0,
-      "duration": 3.79440677082048,
-      "start_frame": 451289,
-      "duration_frames": 60710,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 63502
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "start_time": 14.855163169265762
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
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-      "start_time": 15.446125670422191
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-    {
-      "event_class": "Frying",
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-      "start_time": 18.536049774335734
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1535/cough/0027.wav",
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-      "speaker_id": "1535"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3914/laugh/0048.wav",
-      "duration": 0.7389449274351694,
-      "start_time": 12.089330266718711,
-      "speaker_id": "3914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029876.json b/conversations/conv_029876.json
deleted file mode 100644
index e6f5135150e4cb5b85f9c8539ea450e94fddde43..0000000000000000000000000000000000000000
--- a/conversations/conv_029876.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.650777252458834,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.609043851721524,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3368-170950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170950.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.2416952051886945,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-6379.flac |",
-      "real_speaker_id": "1578",
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-      "segment_id": "seg0002",
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-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 92227
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 23.919927882730917,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-140045.flac |",
-      "real_speaker_id": "1578",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.696061195664853,
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-      "duration_frames": 63275,
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-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 188324
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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-      "start_time": 8.516832828341776
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3368/cough/0076.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1578/laugh/0032.wav",
-      "duration": 1.1428183348840373,
-      "start_time": 27.895833884271692,
-      "speaker_id": "1578"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029877.json b/conversations/conv_029877.json
deleted file mode 100644
index 1aad284e6ccd45e57193b44d00592d153a6f72b6..0000000000000000000000000000000000000000
--- a/conversations/conv_029877.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5220-69519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-69519.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.257110873496392,
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-      "utterance_id": "1316-132800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132800.flac |",
-      "real_speaker_id": "1316",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "7314-77782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-77782.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.02302361499116,
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-      "overlap": true,
-      "utterance_id": "1316-132782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132782.flac |",
-      "real_speaker_id": "1316",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.458875195321397,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132800.flac |",
-      "real_speaker_id": "1316",
-      "position_frames": 104637
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
-      "duration": 1.0203527643216126,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1316/cough/0009.wav",
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-      "speaker_id": "1316"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029883.json b/conversations/conv_029883.json
deleted file mode 100644
index ead52155f45e5c4e58b08a909e82fbb854ca9129..0000000000000000000000000000000000000000
--- a/conversations/conv_029883.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.263830720882325,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.876422029296904,
-      "duration": 6.876422029296904,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.6475668667265575,
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-      "overlap": true,
-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 15.417572429292282,
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-      "duration_frames": 75177,
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-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 110022
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.443706520559054,
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-      "overlap": false,
-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.840519038171927,
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-      "duration_frames": 86772,
-      "overlap": false,
-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 110337
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-      "start_time": 18.66045034280489
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8671/laugh/0058.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 24.295235190052967,
-      "speaker_id": "1383"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029888.json b/conversations/conv_029888.json
deleted file mode 100644
index e75210de85a249f03ddff8a8c93cd320db7de570..0000000000000000000000000000000000000000
--- a/conversations/conv_029888.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration_frames": 68982,
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-      "real_speaker_id": "2427",
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-      "segment_id": "seg0006",
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-      "start_time": 31.23669367569141,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23924.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_029895.json b/conversations/conv_029895.json
deleted file mode 100644
index dafdca8dc8a0f171664c4be37d8a2d9715d110d2..0000000000000000000000000000000000000000
--- a/conversations/conv_029895.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "8441",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_029898.json b/conversations/conv_029898.json
deleted file mode 100644
index d4b03551b1011b3a6bb4f7fc2ea4c397f3d941e7..0000000000000000000000000000000000000000
--- a/conversations/conv_029898.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
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-}
\ No newline at end of file
diff --git a/conversations/conv_029899.json b/conversations/conv_029899.json
deleted file mode 100644
index c18d6face638d8a023d5fe5942d9db69784e1b27..0000000000000000000000000000000000000000
--- a/conversations/conv_029899.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
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-      "position_frames": 0
-    },
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3925/cough/0061.wav",
-      "duration": 1.3330326854295564,
-      "start_time": 19.332015394856263,
-      "speaker_id": "3925"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6254/laugh/0045.wav",
-      "duration": 0.8315861585258256,
-      "start_time": 29.08977644293597,
-      "speaker_id": "6254"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029905.json b/conversations/conv_029905.json
deleted file mode 100644
index fb731aa69e9001aa4405178d041c2a8313556820..0000000000000000000000000000000000000000
--- a/conversations/conv_029905.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.882475869523112,
-      "duration": 4.882475869523112,
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-      "overlap": false,
-      "utterance_id": "6006-60489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60489.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.713988083956272,
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-      "duration": 4.2392582630248725,
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-      "utterance_id": "7837-109174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109174.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.756092748050078,
-      "end_time": 15.793372256641973,
-      "duration": 5.0372795085918955,
-      "start_frame": 172097,
-      "duration_frames": 80596,
-      "overlap": false,
-      "utterance_id": "7837-109173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.655617904818627,
-      "end_time": 22.872155139148276,
-      "duration": 6.2165372343296506,
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-      "duration_frames": 99464,
-      "overlap": true,
-      "utterance_id": "6006-60480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60480.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.298291876365255,
-      "end_time": 28.239176405032033,
-      "duration": 4.940884528666778,
-      "start_frame": 372772,
-      "duration_frames": 79054,
-      "overlap": false,
-      "utterance_id": "7837-109173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 80596
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.06632887707151,
-      "end_time": 32.0,
-      "duration": 2.933671122928491,
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-      "duration_frames": 46938,
-      "overlap": false,
-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7837/cough/0068.wav",
-      "duration": 0.5637121028972587,
-      "start_time": 15.965431729563171,
-      "speaker_id": "7837"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8671/laugh/0051.wav",
-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "8671"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029909.json b/conversations/conv_029909.json
deleted file mode 100644
index 616b8a0469081a9767e62f00d7595db5ab86b27d..0000000000000000000000000000000000000000
--- a/conversations/conv_029909.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.393221069165456,
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-      "overlap": false,
-      "utterance_id": "2751-142363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 12.051196129536681,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 102291
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2853-164188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2853-164188.flac |",
-      "real_speaker_id": "2853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.1784306218843,
-      "end_time": 28.325409130176332,
-      "duration": 4.146978508292035,
-      "start_frame": 386854,
-      "duration_frames": 66351,
-      "overlap": false,
-      "utterance_id": "2853-164187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2853-164187.flac |",
-      "real_speaker_id": "2853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.56229963030451,
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-      "duration": 3.4377003696954915,
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-      "overlap": false,
-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 74951
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029913.json b/conversations/conv_029913.json
deleted file mode 100644
index c06453beb2ff27b8e1d7522c00a66e6a08ad45da..0000000000000000000000000000000000000000
--- a/conversations/conv_029913.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 56797,
-      "overlap": false,
-      "utterance_id": "584-47041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-47041.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.2902050727099805,
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-      "utterance_id": "3257-169284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169284.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290349.flac |",
-      "real_speaker_id": "8575",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "584-124227",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.355394439675162,
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-      "real_speaker_id": "8575",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124227.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 72047
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "8575-290351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290351.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029922.json b/conversations/conv_029922.json
deleted file mode 100644
index a77989d981ba65d694f551c14c66acf869c16e42..0000000000000000000000000000000000000000
--- a/conversations/conv_029922.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.058955434127462,
-  "num_speakers": 3,
-  "overlap_rate": 0.6,
-  "segments": [
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-      "utterance_id": "4344-8892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4344-8892.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4660-25054",
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-      "speaker_id": "6098"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4344/laugh/0129.wav",
-      "duration": 0.5766016401748608,
-      "start_time": 31.275923498913002,
-      "speaker_id": "4344"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029925.json b/conversations/conv_029925.json
deleted file mode 100644
index 91bde12e7c94ad84d9e18234738fe2e498852d83..0000000000000000000000000000000000000000
--- a/conversations/conv_029925.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.44065060753206,
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-      "utterance_id": "3227-24788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24788.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.606079514061031,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-143240.flac |",
-      "real_speaker_id": "133",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 10.893627158768755,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32876.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.44207796459031,
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-      "utterance_id": "5682-32876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32876.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 76634
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.839416059939154,
-      "end_time": 23.914158508228518,
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-      "duration_frames": 49195,
-      "overlap": false,
-      "utterance_id": "3227-24784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.506468346359235,
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-      "duration": 5.154507201054147,
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-      "duration_frames": 82472,
-      "overlap": false,
-      "utterance_id": "5682-32876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32876.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 135371
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.794231448421083,
-      "end_time": 32.0,
-      "duration": 2.2057685515789167,
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-      "overlap": false,
-      "utterance_id": "3227-24747",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24747.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5682/laugh/0094.wav",
-      "duration": 0.6262209004004368,
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "start_time": 31.57424254036239,
-      "speaker_id": "3227"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029929.json b/conversations/conv_029929.json
deleted file mode 100644
index 16cd471ce7db092e89fe7bb581d38af78e9a93e8..0000000000000000000000000000000000000000
--- a/conversations/conv_029929.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.379131010655836,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 60133
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 89301
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.91342055734804,
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-      "overlap": false,
-      "utterance_id": "5325-36587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-36587.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.79803083499842,
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-      "duration": 4.201969165001579,
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-      "duration_frames": 67231,
-      "overlap": false,
-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 161339
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.04,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7647/laugh/0058.wav",
-      "duration": 1.0301453871238977,
-      "start_time": 21.465390762696405,
-      "speaker_id": "7647"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029932.json b/conversations/conv_029932.json
deleted file mode 100644
index cfb984a0c21eecc30c3b563883971f8622116df4..0000000000000000000000000000000000000000
--- a/conversations/conv_029932.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
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-      "segment_id": "seg0003",
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-      "utterance_id": "7333-94828",
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-      "real_speaker_id": "7333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1723",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94828.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 55180
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_029933.json b/conversations/conv_029933.json
deleted file mode 100644
index 6d701b7bf45d7b2a7ea4ed0208b7540dc1c68fd4..0000000000000000000000000000000000000000
--- a/conversations/conv_029933.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.668008543138953,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1868-145473",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12544.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 77145
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_029934.json b/conversations/conv_029934.json
deleted file mode 100644
index 21b702732b20c8ab9eb95d7768ce0d0cd19c93fc..0000000000000000000000000000000000000000
--- a/conversations/conv_029934.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3240-131232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131232.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-27475.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.513657366483905,
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-      "utterance_id": "3240-131231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 30.78,
-      "speaker_id": "3240"
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-}
\ No newline at end of file
diff --git a/conversations/conv_029944.json b/conversations/conv_029944.json
deleted file mode 100644
index df8509c8cce470e593a14e08fc0174c04dc8cba8..0000000000000000000000000000000000000000
--- a/conversations/conv_029944.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-169444.flac |",
-      "real_speaker_id": "1085",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-156170.flac |",
-      "real_speaker_id": "1085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.042763970138783,
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-      "overlap": false,
-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 81100
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.173241557462774,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-156170.flac |",
-      "real_speaker_id": "1085",
-      "position_frames": 103003
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_029948.json b/conversations/conv_029948.json
deleted file mode 100644
index fb0e2025d636df079771709e08dc5a28d8b330ac..0000000000000000000000000000000000000000
--- a/conversations/conv_029948.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6364-65393.flac |",
-      "real_speaker_id": "6364",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5333-37092.flac |",
-      "real_speaker_id": "5333",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6364-65393.flac |",
-      "real_speaker_id": "6364",
-      "position_frames": 75785
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.294125400324837,
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-      "utterance_id": "8392-285237",
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-      "real_speaker_id": "8392",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6364-65393.flac |",
-      "real_speaker_id": "6364",
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-      "position_frames": 0
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5333/laugh/0011.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5333/cough/0003.wav",
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-      "start_time": 30.61902265521572,
-      "speaker_id": "5333"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029949.json b/conversations/conv_029949.json
deleted file mode 100644
index 81d8deff6a8e7550903620bfd82d289d066ac05d..0000000000000000000000000000000000000000
--- a/conversations/conv_029949.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-291172.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3532.flac |",
-      "real_speaker_id": "2712",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3532.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 157875
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.328146100776625,
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-      "utterance_id": "448-122800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-      "speaker_id": "2712"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_029952.json b/conversations/conv_029952.json
deleted file mode 100644
index 66a30121fff9eee3f892daa593ce8ee8d3060fc4..0000000000000000000000000000000000000000
--- a/conversations/conv_029952.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3245-169642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-169642.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 4.443548839050619,
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-      "overlap": false,
-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
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-      "utterance_id": "3245-6194",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-6194.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.270607679611405,
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-      "utterance_id": "163-122947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/163-122947.flac |",
-      "real_speaker_id": "163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.29491108985383,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-6194.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 111296
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 78388
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_029963.json b/conversations/conv_029963.json
deleted file mode 100644
index e5790a2e449a913cf10786da62380f007cf9a106..0000000000000000000000000000000000000000
--- a/conversations/conv_029963.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3334-171008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.774211866998762,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 76947
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3334-171008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 101827
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_029964.json b/conversations/conv_029964.json
deleted file mode 100644
index 26a20a79f9933d86a4fac003ac0bac889a7280cc..0000000000000000000000000000000000000000
--- a/conversations/conv_029964.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "664-129011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
-      "real_speaker_id": "664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.573512879645148,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7769-99397.flac |",
-      "real_speaker_id": "7769",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
-      "real_speaker_id": "664",
-      "position_frames": 88024
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7769-99397.flac |",
-      "real_speaker_id": "7769",
-      "position_frames": 62002
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "664",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7238-91112",
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-      "real_speaker_id": "7238",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_029968.json b/conversations/conv_029968.json
deleted file mode 100644
index e1ffd1e54756bd75d8b3c37939530f730d0e5e5f..0000000000000000000000000000000000000000
--- a/conversations/conv_029968.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.606014804798487,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.416474507522628,
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-      "utterance_id": "7205-64112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7205-64112.flac |",
-      "real_speaker_id": "7205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.699239836969701,
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-      "utterance_id": "5952-54019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-54019.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5952-50948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-50948.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "7030",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7205-50138.flac |",
-      "real_speaker_id": "7205",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7205/laugh/0108.wav",
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-      "start_time": 2.661446678603273,
-      "speaker_id": "7205"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7205/laugh/0106.wav",
-      "duration": 1.1457882921298164,
-      "start_time": 26.78130709407805,
-      "speaker_id": "7205"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029972.json b/conversations/conv_029972.json
deleted file mode 100644
index e39cf8a05b0cf3b7a6ab1383d25195f56bbb3930..0000000000000000000000000000000000000000
--- a/conversations/conv_029972.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6377-34634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34634.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.423804231625658,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122425.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.899531075208706,
-      "end_time": 14.753099165558723,
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-      "utterance_id": "909-131045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131045.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 0
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-    {
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-      "start_time": 15.057880504302354,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34630.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "6377-34619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34619.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.531312110150463,
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-      "utterance_id": "6377-34634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34634.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 75526
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.004028150771628,
-      "end_time": 32.0,
-      "duration": 0.995971849228372,
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-      "utterance_id": "6377-34634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34634.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 140768
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
-      "duration": 0.6518367346938776,
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-  "paralinguistic_events": [
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-      "duration": 1.2,
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-      "event_class": "cough",
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-      "speaker_id": "6377"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029975.json b/conversations/conv_029975.json
deleted file mode 100644
index 95da1c3b6c91d9b7d8c6a2e373f149d1d2175aa7..0000000000000000000000000000000000000000
--- a/conversations/conv_029975.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.57178165655346,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285236.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285236.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 103437
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.589103582104165,
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-      "duration": 3.8469594308630555,
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-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 82940
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.041365395623096,
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-      "duration": 3.530416260930361,
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-      "duration_frames": 56486,
-      "overlap": false,
-      "utterance_id": "5126-27504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-27504.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_029987.json b/conversations/conv_029987.json
deleted file mode 100644
index 17a2e246ea72ed61e6c3bdf9005ca22c859280fc..0000000000000000000000000000000000000000
--- a/conversations/conv_029987.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.01851474922178,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.8991558086211615,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "2411",
-      "position_frames": 59699
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-    {
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-      "real_speaker_id": "5688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.75672490371669,
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-      "overlap": false,
-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 155784
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 4.045185824666149,
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-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 85671
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_029991.json b/conversations/conv_029991.json
deleted file mode 100644
index 138b0c4ca27c6ebce9203faf0b446d47f2398588..0000000000000000000000000000000000000000
--- a/conversations/conv_029991.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-359.flac |",
-      "real_speaker_id": "730",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-360.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.78176578508989,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100429.flac |",
-      "real_speaker_id": "7517",
-      "position_frames": 58372
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.732671993284477,
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-      "duration": 2.2673280067155233,
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-      "utterance_id": "4576-66275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4576-66275.flac |",
-      "real_speaker_id": "4576",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 23.123673469387754,
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/730/laugh/0137.wav",
-      "duration": 1.0835555450569418,
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-      "duration": 1.0,
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-      "event_class": "laugh",
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-      "duration": 1.28,
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-      "speaker_id": "7517"
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-      "event_class": "laugh",
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-      "duration": 1.0002049206276074,
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-      "speaker_id": "7517"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030006.json b/conversations/conv_030006.json
deleted file mode 100644
index fe35591176701c27fe72de662dc489e6f6145c29..0000000000000000000000000000000000000000
--- a/conversations/conv_030006.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.660802572311295,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "31-121972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121972.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.251872939929863,
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-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121971.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121970.flac |",
-      "real_speaker_id": "31",
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-      "utterance_id": "8722-296473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8722-296473.flac |",
-      "real_speaker_id": "8722",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.10660516751405,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121971.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 54593
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.611422879492103,
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-      "duration": 1.3885771205078967,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 64438
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030007.json b/conversations/conv_030007.json
deleted file mode 100644
index 6be76ed9c14bb5823fb950a76e36092d252c2e5d..0000000000000000000000000000000000000000
--- a/conversations/conv_030007.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.628070438385816,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "6538-81858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81858.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1240.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81843.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "5825-53035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-53035.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.36870626639805,
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-      "utterance_id": "103-1241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.029149448715174,
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-      "overlap": false,
-      "utterance_id": "5825-53035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-53035.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 66144
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5825/laugh/0090.wav",
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-      "speaker_id": "5825"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030010.json b/conversations/conv_030010.json
deleted file mode 100644
index 1c467b35b294ee47494c17f945ce708a62ffeee9..0000000000000000000000000000000000000000
--- a/conversations/conv_030010.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.156163224852017,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4273-188164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188164.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.578777361251102,
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-      "utterance_id": "4273-188161",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.606631537403207,
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-      "utterance_id": "2999-156968",
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-    {
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-      "position_frames": 90607
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 22.56219954648526,
-      "start_time": 8.407614617443071
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4273/laugh/0073.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "4273"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4273/laugh/0055.wav",
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-      "speaker_id": "4273"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8791/laugh/0099.wav",
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-      "speaker_id": "8791"
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-      "start_time": 15.41666200797131,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8791/laugh/0019.wav",
-      "duration": 0.5396050706279161,
-      "start_time": 25.18363312939851,
-      "speaker_id": "8791"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2999/laugh/0018.wav",
-      "duration": 1.3868766445456369,
-      "start_time": 30.613123355454363,
-      "speaker_id": "2999"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030017.json b/conversations/conv_030017.json
deleted file mode 100644
index 2770493c78d7ccf6664b9008d8c174949a3013cf..0000000000000000000000000000000000000000
--- a/conversations/conv_030017.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.819214410794155,
-      "duration": 5.819214410794155,
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-      "duration_frames": 93107,
-      "overlap": false,
-      "utterance_id": "8009-282532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8009-282532.flac |",
-      "real_speaker_id": "8009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.418280139962801,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.395543683288217,
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-      "duration_frames": 100141,
-      "overlap": false,
-      "utterance_id": "5756-80689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-80689.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.89315933110764,
-      "end_time": 25.228188111882197,
-      "duration": 6.335028780774558,
-      "start_frame": 302290,
-      "duration_frames": 101360,
-      "overlap": true,
-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 76705
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.39313152930298,
-      "end_time": 32.0,
-      "duration": 5.6068684706970195,
-      "start_frame": 422290,
-      "duration_frames": 89709,
-      "overlap": false,
-      "utterance_id": "8009-292146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8009-292146.flac |",
-      "real_speaker_id": "8009",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
-      "duration": 13.40719833399129,
-      "start_time": 14.936062655847216
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.786317236815668,
-      "start_time": 21.71803282574382
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8009/cough/0138.wav",
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-      "start_time": 0,
-      "speaker_id": "8009"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5756/laugh/0006.wav",
-      "duration": 1.08,
-      "start_time": 18.926940303563768,
-      "speaker_id": "5756"
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-    {
-      "event_class": "cough",
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-      "duration": 0.6878694802317683,
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-      "speaker_id": "4236"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8009/laugh/0145.wav",
-      "duration": 1.2,
-      "start_time": 27.089587358684174,
-      "speaker_id": "8009"
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-    {
-      "event_class": "cough",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "8009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030026.json b/conversations/conv_030026.json
deleted file mode 100644
index 8fdb4becfdc3ff8ea71210ba8adf1ad655cb5f0a..0000000000000000000000000000000000000000
--- a/conversations/conv_030026.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.894907599605384,
-      "duration": 5.894907599605384,
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-      "overlap": false,
-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.387022527947435,
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-      "utterance_id": "1430-139231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-139231.flac |",
-      "real_speaker_id": "1430",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.2493870831722,
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-      "overlap": false,
-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 94318
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.71519938869569,
-      "end_time": 22.0357582123328,
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-      "duration_frames": 85128,
-      "overlap": false,
-      "utterance_id": "1430-1061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-1061.flac |",
-      "real_speaker_id": "1430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.352666601455585,
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-      "overlap": true,
-      "utterance_id": "7437-96153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96153.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.783764743731794,
-      "end_time": 32.0,
-      "duration": 2.216235256268206,
-      "start_frame": 476540,
-      "duration_frames": 35459,
-      "overlap": false,
-      "utterance_id": "1430-139231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-139231.flac |",
-      "real_speaker_id": "1430",
-      "position_frames": 83377
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 16.46541026399898
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1721/laugh/0032.wav",
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-      "start_time": 0.8514465311936406,
-      "speaker_id": "1721"
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1430/cough/0075.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1430/laugh/0055.wav",
-      "duration": 1.14,
-      "start_time": 15.431580019601004,
-      "speaker_id": "1430"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1430/cough/0001.wav",
-      "duration": 1.24,
-      "start_time": 15.404642686780015,
-      "speaker_id": "1430"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7437/laugh/0109.wav",
-      "duration": 1.32,
-      "start_time": 28.442454488757225,
-      "speaker_id": "7437"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030030.json b/conversations/conv_030030.json
deleted file mode 100644
index 3f218efc2c60c3ec6670f0432402deb5b822ecc0..0000000000000000000000000000000000000000
--- a/conversations/conv_030030.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.956063272213242,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.921895499890799,
-      "duration": 3.921895499890799,
-      "start_frame": 0,
-      "duration_frames": 62750,
-      "overlap": false,
-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.576648076052415,
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-      "overlap": false,
-      "utterance_id": "2427-154673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154673.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 80817,
-      "overlap": false,
-      "utterance_id": "2825-666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-666.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.571091784740267,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154671.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.61502918088752,
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-      "utterance_id": "2825-6391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-6391.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.268497224992117,
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-      "duration": 3.687566047221125,
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-      "duration_frames": 59001,
-      "overlap": false,
-      "utterance_id": "2427-154736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154736.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2825/laugh/0065.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2427/cough/0102.wav",
-      "duration": 0.8916039986949027,
-      "start_time": 14.658017884850327,
-      "speaker_id": "2427"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2825/laugh/0061.wav",
-      "duration": 0.5077795765315307,
-      "start_time": 27.80717215031737,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2427/laugh/0114.wav",
-      "duration": 0.60153639429229,
-      "start_time": 31.25206280999972,
-      "speaker_id": "2427"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030047.json b/conversations/conv_030047.json
deleted file mode 100644
index b25676b60cb10914c98ca2967e1509d97051d15f..0000000000000000000000000000000000000000
--- a/conversations/conv_030047.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "205-157088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-157088.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.219658639558964,
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-      "utterance_id": "6509-67147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6509-67147.flac |",
-      "real_speaker_id": "6509",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-123882.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_030051.json b/conversations/conv_030051.json
deleted file mode 100644
index 3a0c33350ce2465ed068135eb0861ca978d61ac6..0000000000000000000000000000000000000000
--- a/conversations/conv_030051.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1463-134465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7556",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
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-      "position_frames": 102996
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-      "speaker_id": 0,
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-      "real_speaker_id": "7556",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1746-143015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1746-143015.flac |",
-      "real_speaker_id": "1746",
-      "position_frames": 0
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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\ No newline at end of file
diff --git a/conversations/conv_030067.json b/conversations/conv_030067.json
deleted file mode 100644
index 16c031e560000b5cdfa251a65916e3486b24ca3b..0000000000000000000000000000000000000000
--- a/conversations/conv_030067.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "4894",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
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-      "real_speaker_id": "8388",
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-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030071.json b/conversations/conv_030071.json
deleted file mode 100644
index 7fa4690408782b2e5949b0317c50370ebb481228..0000000000000000000000000000000000000000
--- a/conversations/conv_030071.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.347592735178644,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
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-      "start_time": 31.08,
-      "speaker_id": "806"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030083.json b/conversations/conv_030083.json
deleted file mode 100644
index 921c8497393ae68f8803974948ca1de9700e131a..0000000000000000000000000000000000000000
--- a/conversations/conv_030083.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22885.flac |",
-      "real_speaker_id": "107",
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_030084.json b/conversations/conv_030084.json
deleted file mode 100644
index d5dcc18b7bca0a817db112b83365c22a49c36259..0000000000000000000000000000000000000000
--- a/conversations/conv_030084.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3361-1150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-1150.flac |",
-      "real_speaker_id": "3361",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.028859987702571,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
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-      "start_time": 18.059794928814917,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 124286
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-      "segment_id": "seg0005",
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-      "utterance_id": "3361-1133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-1133.flac |",
-      "real_speaker_id": "3361",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.00760422129933,
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-      "utterance_id": "5719-233352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_030088.json b/conversations/conv_030088.json
deleted file mode 100644
index 498dee2e537fdfe0f607bce24c1cb0e718658fc9..0000000000000000000000000000000000000000
--- a/conversations/conv_030088.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-298838.flac |",
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-      "real_speaker_id": "4910",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-354.flac |",
-      "real_speaker_id": "66",
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-      "real_speaker_id": "6248",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "66-355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-355.flac |",
-      "real_speaker_id": "66",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_030092.json b/conversations/conv_030092.json
deleted file mode 100644
index 678b8c50e840c814cecd7d84b88d137810c7cb40..0000000000000000000000000000000000000000
--- a/conversations/conv_030092.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "8382-285236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285236.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.248965655939177,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285236.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 85908
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "8382",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4687.flac |",
-      "real_speaker_id": "3228",
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-    {
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-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
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-      "position_frames": 85873
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-    {
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-      "speaker_id": "3228"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030095.json b/conversations/conv_030095.json
deleted file mode 100644
index b21c9acb7d8ad67891876c86680c47dec7a8e5c8..0000000000000000000000000000000000000000
--- a/conversations/conv_030095.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.266982847752022,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-}
\ No newline at end of file
diff --git a/conversations/conv_030102.json b/conversations/conv_030102.json
deleted file mode 100644
index 7b1badae8fcf3b63631ded6c7e60f3f8b2d0b668..0000000000000000000000000000000000000000
--- a/conversations/conv_030102.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.009932569325773,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "8346-244445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244445.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
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-      "start_time": 4.4603682484627285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244445.flac |",
-      "real_speaker_id": "8346",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_030114.json b/conversations/conv_030114.json
deleted file mode 100644
index a3ea69c80632ec1a704f8c41eabd5288cac17652..0000000000000000000000000000000000000000
--- a/conversations/conv_030114.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "5252-4860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4860.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4876.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 104040
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-  "foreground_events": [
-    {
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-    {
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-    {
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-      "speaker_id": "4226"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030118.json b/conversations/conv_030118.json
deleted file mode 100644
index da23b352c0627483b55abb3cda9ac1922edc3765..0000000000000000000000000000000000000000
--- a/conversations/conv_030118.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286253.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.614106628772973,
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-      "duration": 3.0775472773102255,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
-      "real_speaker_id": "1414",
-      "position_frames": 160683
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8498-287357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287357.flac |",
-      "real_speaker_id": "8498",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8498/laugh/0006.wav",
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-      "speaker_id": "8498"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030122.json b/conversations/conv_030122.json
deleted file mode 100644
index a0b4222bf3b2d7150949c28efde2b448244a7532..0000000000000000000000000000000000000000
--- a/conversations/conv_030122.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.15629288737309,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2050-157659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.6672044162710082,
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-      "overlap": true,
-      "utterance_id": "7553-101289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101289.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.82607599208595,
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-      "utterance_id": "4116-3582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-3582.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.043387813187437,
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-      "overlap": true,
-      "utterance_id": "2050-164332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.027416500731313,
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-      "utterance_id": "7553-101278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.694444452796045,
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-      "duration_frames": 55389,
-      "overlap": true,
-      "utterance_id": "2050-157659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 59811
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "speaker_id": "4116"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030129.json b/conversations/conv_030129.json
deleted file mode 100644
index 2c45d44b748bb3f2e73d05cf875c3bd74b163ca8..0000000000000000000000000000000000000000
--- a/conversations/conv_030129.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1815-143388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143388.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.094486542784839,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "1815-9918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-9918.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.633587592396033,
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-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.444141019296055,
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-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 0.8892572175785745,
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-      "utterance_id": "5604-26982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26982.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_030134.json b/conversations/conv_030134.json
deleted file mode 100644
index b272f9d1b2fc17760026301aeaf170324a828da0..0000000000000000000000000000000000000000
--- a/conversations/conv_030134.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3374-298025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3374-298025.flac |",
-      "real_speaker_id": "3374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.106418651877682,
-      "end_time": 12.94037235659191,
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-      "overlap": true,
-      "utterance_id": "93-123172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-123172.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.09050614237089,
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-      "duration": 3.6539947105976993,
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-      "duration_frames": 58463,
-      "overlap": false,
-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.095733378990797,
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-      "duration_frames": 78032,
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-      "utterance_id": "3374-298025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3374-298025.flac |",
-      "real_speaker_id": "3374",
-      "position_frames": 110170
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 58463
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 1.7875015209231009,
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-      "duration_frames": 28600,
-      "overlap": false,
-      "utterance_id": "93-126208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-126208.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/93/cough/0108.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4964/laugh/0121.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4964/cough/0052.wav",
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-      "start_time": 17.77647416578585,
-      "speaker_id": "4964"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4964/laugh/0027.wav",
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-      "speaker_id": "4964"
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-    {
-      "event_class": "cough",
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-      "duration": 0.9207113402981031,
-      "start_time": 29.19191196361205,
-      "speaker_id": "93"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030138.json b/conversations/conv_030138.json
deleted file mode 100644
index f10392b2dfb616454ae2d458117b4a6553fc12e0..0000000000000000000000000000000000000000
--- a/conversations/conv_030138.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.706277286079562,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.881062719501764,
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-      "start_frame": 0,
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-      "utterance_id": "5278-3072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-3072.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.904516874700774,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 86701,
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-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-131220.flac |",
-      "real_speaker_id": "288",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5278-40897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40897.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 1.24,
-      "start_time": 5.64264861920616,
-      "speaker_id": "6221"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6221/laugh/0013.wav",
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-      "duration": 1.22,
-      "start_time": 25.40404705637609,
-      "speaker_id": "5278"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_030142.json b/conversations/conv_030142.json
deleted file mode 100644
index 5db48728d53938b36e4ed72b1696710e1f7cd3c9..0000000000000000000000000000000000000000
--- a/conversations/conv_030142.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.777346765824355,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7314-77782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-77782.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.50271877713752,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-126495.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-77782.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-126495.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 56253
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-128861.flac |",
-      "real_speaker_id": "572",
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-  "background_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_030143.json b/conversations/conv_030143.json
deleted file mode 100644
index bee337b337b2b1b4f10eccfab5aa5ca476464d80..0000000000000000000000000000000000000000
--- a/conversations/conv_030143.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_030152.json b/conversations/conv_030152.json
deleted file mode 100644
index 5f06b1ed1358cb6fd2c22624f1e100a1d5b3adf2..0000000000000000000000000000000000000000
--- a/conversations/conv_030152.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-116276.flac |",
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-    {
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-    {
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-    {
-      "segment_id": "seg0004",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_030155.json b/conversations/conv_030155.json
deleted file mode 100644
index eccb943a899bf87e4a1437efa695fda6e7b556e6..0000000000000000000000000000000000000000
--- a/conversations/conv_030155.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.262928728697005,
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-      "duration": 3.7370712713029945,
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-      "utterance_id": "716-129582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129582.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "paralinguistic_events": [
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-      "start_time": 4.003240851925648,
-      "speaker_id": "5337"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 16.8119794418551,
-      "speaker_id": "5337"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1547/laugh/0019.wav",
-      "duration": 1.2535991530609003,
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-      "event_class": "cough",
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-      "duration": 0.8664558242258911,
-      "start_time": 19.896450436101166,
-      "speaker_id": "1547"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030159.json b/conversations/conv_030159.json
deleted file mode 100644
index 8e939620ac52e8f590c4591ebf0c8f23efb7f666..0000000000000000000000000000000000000000
--- a/conversations/conv_030159.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.361231407497864,
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-      "overlap": false,
-      "utterance_id": "1110-134828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134828.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.893773089125668,
-      "end_time": 11.701940002113393,
-      "duration": 5.8081669129877245,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39515.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
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-      "start_time": 12.005484041972327,
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-      "utterance_id": "5401-39515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39515.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 92930
-    },
-    {
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-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.610104701865346,
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-      "overlap": false,
-      "utterance_id": "5401-39508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39508.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.309691048935868,
-      "end_time": 32.0,
-      "duration": 0.6903089510641323,
-      "start_frame": 500955,
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-      "overlap": false,
-      "utterance_id": "1110-134828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134828.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 85779
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
-      "duration": 19.994063714366604,
-      "start_time": 10.452772796848942
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "start_time": 29.765879920812843,
-      "speaker_id": "1110"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030163.json b/conversations/conv_030163.json
deleted file mode 100644
index 1ec6036cf3914b8e8cacedc7020570d4b3e8f5be..0000000000000000000000000000000000000000
--- a/conversations/conv_030163.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "737-123448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "737-123441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.110932409422134,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.002844068632676,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 109950
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.018721761989159,
-      "start_frame": 479700,
-      "duration_frames": 32299,
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-      "utterance_id": "737-123441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 93931
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "737"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/737/cough/0004.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1779/laugh/0014.wav",
-      "duration": 0.7043252285797731,
-      "start_time": 18.35701554857272,
-      "speaker_id": "1779"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030168.json b/conversations/conv_030168.json
deleted file mode 100644
index 3df05437cf288a8e25590fdd277d6e288fa4ff75..0000000000000000000000000000000000000000
--- a/conversations/conv_030168.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.7078612389614,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-104730.flac |",
-      "real_speaker_id": "7278",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132280.flac |",
-      "real_speaker_id": "764",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7278",
-      "position_frames": 0
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-    {
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-      "position_frames": 95043
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7278-246956",
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-      "real_speaker_id": "7278",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2146/laugh/0017.wav",
-      "duration": 1.36,
-      "start_time": 22.41800538652936,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7278/laugh/0105.wav",
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-      "start_time": 30.73145868068227,
-      "speaker_id": "7278"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030175.json b/conversations/conv_030175.json
deleted file mode 100644
index 931159990f97493ea052c46796d786f08ddcd0e4..0000000000000000000000000000000000000000
--- a/conversations/conv_030175.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5660-101884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5660-101884.flac |",
-      "real_speaker_id": "5660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.576607102665434,
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-      "real_speaker_id": "1849",
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_030179.json b/conversations/conv_030179.json
deleted file mode 100644
index 0956a94dda07af31e7825bc19e0835fa15f07242..0000000000000000000000000000000000000000
--- a/conversations/conv_030179.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-138074.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 106977
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-134434.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 94440
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030180.json b/conversations/conv_030180.json
deleted file mode 100644
index 58d9a41d6b45cd22f7d63df0d0125548f4bf59bf..0000000000000000000000000000000000000000
--- a/conversations/conv_030180.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99749350144062,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 76479
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-      "segment_id": "seg0003",
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-      "utterance_id": "1638-84448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84448.flac |",
-      "real_speaker_id": "1638",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.989984294867565,
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-      "utterance_id": "100-121669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 168309
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
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-      "position_frames": 85158
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-  "background_events": [],
-  "foreground_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030187.json b/conversations/conv_030187.json
deleted file mode 100644
index d28ba12ecb8a11695489efbeec53937076bdcd58..0000000000000000000000000000000000000000
--- a/conversations/conv_030187.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2816-4136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-4136.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "duration_frames": 104208,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130229.flac |",
-      "real_speaker_id": "272",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2816-156159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-156159.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130229.flac |",
-      "real_speaker_id": "272",
-      "position_frames": 104208
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "272-130225",
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-      "real_speaker_id": "272",
-      "position_frames": 0
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-  "background_events": [
-    {
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/272/laugh/0009.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030191.json b/conversations/conv_030191.json
deleted file mode 100644
index f66e10ac510aa69af1286bae62ecc1dfff487cc5..0000000000000000000000000000000000000000
--- a/conversations/conv_030191.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.399956108056557,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.005784285687911,
-      "duration": 5.005784285687911,
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-      "utterance_id": "6753-76098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76098.flac |",
-      "real_speaker_id": "6753",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.367215012922088,
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-      "duration": 6.280264408749696,
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-      "utterance_id": "1806-2536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-2536.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89646.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.564706770164044,
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-      "utterance_id": "6753-76099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76099.flac |",
-      "real_speaker_id": "6753",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89651.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143946.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_3.wav",
-      "duration": 0.5554648526077097,
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
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-      "start_time": 5.998192025301984
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_030196.json b/conversations/conv_030196.json
deleted file mode 100644
index edadc54422f8bf35d97edb70bf80c78e58a237e5..0000000000000000000000000000000000000000
--- a/conversations/conv_030196.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.1425029719644275,
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-      "overlap": false,
-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.693313550808435,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143255.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.562525148321356,
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-      "utterance_id": "2012-139355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139355.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.245733778592957,
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-      "duration": 5.490783255102609,
-      "start_frame": 275931,
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-      "utterance_id": "2003-143255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143255.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 86164
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.32547465500368,
-      "end_time": 25.770147911984278,
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-      "overlap": true,
-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 82280
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2012-139356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139356.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "2012"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030200.json b/conversations/conv_030200.json
deleted file mode 100644
index cc19591764d5047903cd2ae9bb258bbb88792c3d..0000000000000000000000000000000000000000
--- a/conversations/conv_030200.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.238266450933512,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "636-128331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128331.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.197502076771603,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "636-123163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-123163.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.18163129229065,
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-      "duration_frames": 55812,
-      "overlap": true,
-      "utterance_id": "636-128310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128310.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.310957969114366,
-      "end_time": 24.51729542420711,
-      "duration": 5.206337455092743,
-      "start_frame": 308975,
-      "duration_frames": 83301,
-      "overlap": false,
-      "utterance_id": "636-123163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-123163.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 78331
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.47359723671808,
-      "end_time": 31.238266450933512,
-      "duration": 5.764669214215431,
-      "start_frame": 407577,
-      "duration_frames": 92234,
-      "overlap": false,
-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 86524
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/636/laugh/0063.wav",
-      "duration": 1.16,
-      "start_time": 3.540383648629459,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/636/cough/0087.wav",
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-      "start_time": 16.30120383364745,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030207.json b/conversations/conv_030207.json
deleted file mode 100644
index 5e8850bebc7d4e6d283677efb55ad3a08f756e3a..0000000000000000000000000000000000000000
--- a/conversations/conv_030207.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6539-66421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66421.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.555960538248084,
-      "end_time": 11.381318455961598,
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-      "duration_frames": 77205,
-      "overlap": false,
-      "utterance_id": "803-139752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/803-139752.flac |",
-      "real_speaker_id": "803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.886851934951745,
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-      "duration": 6.185173359109461,
-      "start_frame": 190189,
-      "duration_frames": 98962,
-      "overlap": false,
-      "utterance_id": "6539-66391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66391.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.876532233488586,
-      "end_time": 22.958938737307907,
-      "duration": 4.082406503819322,
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-      "duration_frames": 65318,
-      "overlap": false,
-      "utterance_id": "226-131532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/226-131532.flac |",
-      "real_speaker_id": "226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6539-66391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66391.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 98962
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.53802877316892,
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-      "duration": 1.4619712268310785,
-      "start_frame": 488608,
-      "duration_frames": 23391,
-      "overlap": false,
-      "utterance_id": "803-139752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/803-139752.flac |",
-      "real_speaker_id": "803",
-      "position_frames": 77205
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 5.224677235385502,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6539/laugh/0065.wav",
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/226/cough/0094.wav",
-      "duration": 1.291268448924247,
-      "start_time": 23.13325588941616,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6539/cough/0111.wav",
-      "duration": 0.3917535772883669,
-      "start_time": 30.092021212235693,
-      "speaker_id": "6539"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/803/cough/0021.wav",
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-      "start_time": 31.67103075236813,
-      "speaker_id": "803"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030211.json b/conversations/conv_030211.json
deleted file mode 100644
index 79ba99f6714e3ac060e2334128a5897033387d50..0000000000000000000000000000000000000000
--- a/conversations/conv_030211.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.699270486367023,
-      "duration": 4.699270486367023,
-      "start_frame": 0,
-      "duration_frames": 75188,
-      "overlap": false,
-      "utterance_id": "925-8157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/925-8157.flac |",
-      "real_speaker_id": "925",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-186230.flac |",
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_030216.json b/conversations/conv_030216.json
deleted file mode 100644
index c79b60dbb77e41d7cacada95fdec6395b7c10068..0000000000000000000000000000000000000000
--- a/conversations/conv_030216.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271812.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 0
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_030227.json b/conversations/conv_030227.json
deleted file mode 100644
index c070f5662207acd28084bb83927e208f132c0c36..0000000000000000000000000000000000000000
--- a/conversations/conv_030227.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "speaker_id": 2,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_030231.json b/conversations/conv_030231.json
deleted file mode 100644
index 2dd1fcc3bf7528ee1ed5a114d13c461cd4805bac..0000000000000000000000000000000000000000
--- a/conversations/conv_030231.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "speaker_id": "7360"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2122/cough/0029.wav",
-      "duration": 0.96,
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-      "speaker_id": "2122"
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-      "event_class": "cough",
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-      "start_time": 31.49078896906884,
-      "speaker_id": "2122"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030241.json b/conversations/conv_030241.json
deleted file mode 100644
index 9a1bd8c1f4370a47ceeec9b7f8a1d6887277e955..0000000000000000000000000000000000000000
--- a/conversations/conv_030241.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.058149886913505,
-      "duration": 5.058149886913505,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3994-149798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-149798.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.673125990208295,
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-      "utterance_id": "3994-149798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-149798.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 80930
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.563241639945101,
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-      "duration": 3.439662325287525,
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-      "overlap": false,
-      "utterance_id": "6284-63091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 90727
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.702546080454148,
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-      "overlap": false,
-      "utterance_id": "5246-5084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.122352349203023,
-      "end_time": 28.985971749766467,
-      "duration": 3.8636194005634428,
-      "start_frame": 401957,
-      "duration_frames": 61817,
-      "overlap": false,
-      "utterance_id": "6284-63091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 145761
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.668515717154968,
-      "end_time": 32.0,
-      "duration": 2.3314842828450324,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
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-      "position_frames": 207578
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "speaker_id": "6284"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030246.json b/conversations/conv_030246.json
deleted file mode 100644
index a3820f4b618bf398e9b2dc6f57326ce84ebd48ad..0000000000000000000000000000000000000000
--- a/conversations/conv_030246.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7277-106407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106407.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.514119803975894,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 0
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-      "utterance_id": "7886-110517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110517.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.18778557783169,
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-      "duration": 3.141557892070046,
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-      "overlap": true,
-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 109637
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7886-110519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110519.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.678387951230604,
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-      "utterance_id": "7886-110519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110519.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 56805
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.016121780950805,
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-      "duration": 0.9838782190491955,
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-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 159901
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7886/laugh/0007.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7886/cough/0009.wav",
-      "duration": 0.82,
-      "start_time": 30.393987505934447,
-      "speaker_id": "7886"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030250.json b/conversations/conv_030250.json
deleted file mode 100644
index daf40ac14ed9177c5c5b51188cb697845ab99181..0000000000000000000000000000000000000000
--- a/conversations/conv_030250.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3896-134415.flac |",
-      "real_speaker_id": "3896",
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-      "utterance_id": "5727-47030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47030.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.883295475544609,
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-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 70479
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3896-134415",
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-      "real_speaker_id": "3896",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.5362329523590503,
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-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 165109
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "3259"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030257.json b/conversations/conv_030257.json
deleted file mode 100644
index 265036b3e34cabdd1280a5060dac02dc2b2a943b..0000000000000000000000000000000000000000
--- a/conversations/conv_030257.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3835-178028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178028.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2853-164188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2853-164188.flac |",
-      "real_speaker_id": "2853",
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-      "speaker_id": 0,
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-      "utterance_id": "3835-178030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178030.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3835/laugh/0077.wav",
-      "duration": 1.12,
-      "start_time": 0,
-      "speaker_id": "3835"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3835/cough/0027.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "3835"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2853/laugh/0000.wav",
-      "duration": 0.7333346119516988,
-      "start_time": 5.469243604672887,
-      "speaker_id": "2853"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030266.json b/conversations/conv_030266.json
deleted file mode 100644
index bd0d06e3838ae8ee63312277e7997a88fee0cd89..0000000000000000000000000000000000000000
--- a/conversations/conv_030266.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.9592186816219,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.938949381511448,
-      "duration": 3.938949381511448,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5154-26559",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26559.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8580857637864883,
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-      "utterance_id": "2285-163380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-163380.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.359055096507493,
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-      "utterance_id": "5154-26558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26558.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.94788209204255,
-      "end_time": 21.962769615483666,
-      "duration": 5.014887523441116,
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-      "overlap": false,
-      "utterance_id": "4899-32637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32637.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.354510733417136,
-      "end_time": 26.817320578455316,
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-      "duration_frames": 71404,
-      "overlap": false,
-      "utterance_id": "2285-163381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-163381.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.057618892597226,
-      "end_time": 31.9592186816219,
-      "duration": 3.901599789024674,
-      "start_frame": 448921,
-      "duration_frames": 62425,
-      "overlap": false,
-      "utterance_id": "4899-32639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32639.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_4.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5154/laugh/0002.wav",
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-      "start_time": 0,
-      "speaker_id": "5154"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5154/laugh/0032.wav",
-      "duration": 0.82,
-      "start_time": 15.642033643334576,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2285/cough/0068.wav",
-      "duration": 0.8926032437787366,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4899/cough/0058.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "4899"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030270.json b/conversations/conv_030270.json
deleted file mode 100644
index 4a89f71ebd23fb1e51190d8b081e19389c8f5938..0000000000000000000000000000000000000000
--- a/conversations/conv_030270.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.774445781491762,
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-      "overlap": false,
-      "utterance_id": "3185-163505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163505.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.902845931705101,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169011.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.23276154155219,
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-      "utterance_id": "7608-115034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.6464259565528,
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-      "utterance_id": "3185-163507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163507.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.424998866554272,
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-      "utterance_id": "2487-169018",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169018.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.605408303412855,
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-      "utterance_id": "7608-115034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 93869
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.74550268892846,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030284.json b/conversations/conv_030284.json
deleted file mode 100644
index a2ce3a5fb489ea664d2be045f5a2095575e96003..0000000000000000000000000000000000000000
--- a/conversations/conv_030284.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.992736173403493,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "829-123190",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/829-123190.flac |",
-      "real_speaker_id": "829",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "6294",
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-      "segment_id": "seg0002",
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-      "utterance_id": "949-138545",
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-      "real_speaker_id": "949",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "829",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.75376507980136,
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-      "utterance_id": "829-123191",
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-      "real_speaker_id": "829",
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/949/cough/0025.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030285.json b/conversations/conv_030285.json
deleted file mode 100644
index 14a04565f0e795ba9f3ed4863b290efcf8328e9e..0000000000000000000000000000000000000000
--- a/conversations/conv_030285.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.623468929648983,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5604-26987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5886",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 66771
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030288.json b/conversations/conv_030288.json
deleted file mode 100644
index c634096147fa6b25d38b423d4fe2f13688a0fef1..0000000000000000000000000000000000000000
--- a/conversations/conv_030288.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-121659.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-121659.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 102797
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-129246.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 71609
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "6539-66421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66421.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.885625244454708,
-      "end_time": 32.0,
-      "duration": 2.114374755545292,
-      "start_frame": 478170,
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-      "utterance_id": "168-129245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-129245.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030289.json b/conversations/conv_030289.json
deleted file mode 100644
index d4d9849da19e6555efedb1d56ef37360321c1744..0000000000000000000000000000000000000000
--- a/conversations/conv_030289.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "882-123268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123268.flac |",
-      "real_speaker_id": "882",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
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-      "utterance_id": "882-123268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123268.flac |",
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-      "utterance_id": "8545-287671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-287671.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 19.855232678332836,
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-      "utterance_id": "882-123267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123267.flac |",
-      "real_speaker_id": "882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.615183127383546,
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-      "duration": 5.3848168726164545,
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-      "overlap": false,
-      "utterance_id": "8545-287671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-287671.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 73966
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-  ],
-  "background_events": [
-    {
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-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/882/laugh/0017.wav",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030293.json b/conversations/conv_030293.json
deleted file mode 100644
index 244657a6e526a1cd5dd120484d476c21d6fda44c..0000000000000000000000000000000000000000
--- a/conversations/conv_030293.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.734327160911304,
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-      "overlap": false,
-      "utterance_id": "5271-10982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-10982.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.619124285137365,
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-      "utterance_id": "5719-233352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "8108-280354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280354.flac |",
-      "real_speaker_id": "8108",
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-    },
-    {
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-      "real_speaker_id": "5271",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5271-10982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-10982.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 75749
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8108-274318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-274318.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-      "duration": 1.24,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8108/cough/0099.wav",
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-      "speaker_id": "8108"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030303.json b/conversations/conv_030303.json
deleted file mode 100644
index 258d570721b7f89ab182a4d9689e8b5a1183c2d3..0000000000000000000000000000000000000000
--- a/conversations/conv_030303.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "8499-256275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8499-256275.flac |",
-      "real_speaker_id": "8499",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-94876.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.651405000202512,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-94876.flac |",
-      "real_speaker_id": "5717",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8499-256275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8499-256275.flac |",
-      "real_speaker_id": "8499",
-      "position_frames": 66014
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.453366116881725,
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-      "utterance_id": "5717-100145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-100145.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
-      "duration": 3.500699454658254,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8499/laugh/0057.wav",
-      "duration": 1.28,
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-      "speaker_id": "8499"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_030304.json b/conversations/conv_030304.json
deleted file mode 100644
index a4ff5f951dd71ecbd818494a6c0ce870f69eae8a..0000000000000000000000000000000000000000
--- a/conversations/conv_030304.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.368645684492325,
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-      "overlap": false,
-      "utterance_id": "830-130727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130727.flac |",
-      "real_speaker_id": "830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.197904073430486,
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-      "duration": 6.854409948895413,
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-      "overlap": false,
-      "utterance_id": "7746-104992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7746-104992.flac |",
-      "real_speaker_id": "7746",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.05955526999352,
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-      "duration": 4.4393795314028015,
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-      "duration_frames": 71030,
-      "overlap": false,
-      "utterance_id": "7055-87276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-87276.flac |",
-      "real_speaker_id": "7055",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.00638912583828,
-      "end_time": 23.422494629376096,
-      "duration": 6.416105503537818,
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-      "duration_frames": 102657,
-      "overlap": false,
-      "utterance_id": "830-130728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130728.flac |",
-      "real_speaker_id": "830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.937484296853015,
-      "end_time": 27.491119524321707,
-      "duration": 3.553635227468693,
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-      "overlap": false,
-      "utterance_id": "7055-85634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7055-85634.flac |",
-      "real_speaker_id": "7055",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.168293432187802,
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-      "duration": 3.8317065678121978,
-      "start_frame": 450692,
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-      "utterance_id": "7746-104992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7746-104992.flac |",
-      "real_speaker_id": "7746",
-      "position_frames": 109670
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7746/laugh/0075.wav",
-      "duration": 1.4,
-      "start_time": 11.168094315862033,
-      "speaker_id": "7746"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/830/laugh/0056.wav",
-      "duration": 1.0,
-      "start_time": 23.693945069048784,
-      "speaker_id": "830"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030312.json b/conversations/conv_030312.json
deleted file mode 100644
index f8403ceb7c1d42ea7f76359c4e068fc99099ca2a..0000000000000000000000000000000000000000
--- a/conversations/conv_030312.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6437-66172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6437-66172.flac |",
-      "real_speaker_id": "6437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.805361450111349,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "2050-164332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 70051
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "4959-28865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.225947723363703,
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-      "utterance_id": "6437-66173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6437-66173.flac |",
-      "real_speaker_id": "6437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.612672793756374,
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-      "duration": 4.387327206243626,
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-      "duration_frames": 70197,
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-      "utterance_id": "2050-157659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_6.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4959/cough/0066.wav",
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-      "speaker_id": "4959"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.06,
-      "start_time": 30.11574232518054,
-      "speaker_id": "2050"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030315.json b/conversations/conv_030315.json
deleted file mode 100644
index 7a9f79891e61b1b395ca689972efc46ee4d6c34c..0000000000000000000000000000000000000000
--- a/conversations/conv_030315.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.177125288322181,
-      "duration": 5.177125288322181,
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-      "overlap": false,
-      "utterance_id": "3271-169289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.846375919987374,
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-      "duration_frames": 64486,
-      "overlap": false,
-      "utterance_id": "1290-135762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.282546070764697,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 82834
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "4211-3820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3820.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.1972275671239,
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-      "overlap": false,
-      "utterance_id": "3271-169289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 158186
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 4.55134979628885,
-      "start_frame": 439178,
-      "duration_frames": 72821,
-      "overlap": false,
-      "utterance_id": "1290-135762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 64486
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3271/cough/0060.wav",
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-      "start_time": 5.31055131129399,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030319.json b/conversations/conv_030319.json
deleted file mode 100644
index 44a2b210480cb0f61d25c1699bd583c4e6822e81..0000000000000000000000000000000000000000
--- a/conversations/conv_030319.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.957826590174435,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.379149176596842,
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-      "start_frame": 0,
-      "duration_frames": 70066,
-      "overlap": false,
-      "utterance_id": "2285-163380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-163380.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.941763264683099,
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-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2285-149890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-149890.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-163381.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-163380.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 70066
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2285/laugh/0070.wav",
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-      "speaker_id": "2285"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2285/laugh/0044.wav",
-      "duration": 1.2,
-      "start_time": 26.526524563520233,
-      "speaker_id": "2285"
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-      "event_class": "cough",
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-      "speaker_id": "2285"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030322.json b/conversations/conv_030322.json
deleted file mode 100644
index 1b2e29cdc7be7e6dff43d3b8fb33ba72c0533c7a..0000000000000000000000000000000000000000
--- a/conversations/conv_030322.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.013940860273402,
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-      "overlap": false,
-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.348530493105162,
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-      "duration_frames": 101130,
-      "overlap": false,
-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.623496177444565,
-      "end_time": 21.712400377598172,
-      "duration": 5.088904200153607,
-      "start_frame": 265975,
-      "duration_frames": 81422,
-      "overlap": false,
-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 71775
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.116687868304727,
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-      "duration_frames": 97836,
-      "overlap": false,
-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 50741
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.49163804411174,
-      "end_time": 32.0,
-      "duration": 3.5083619558882617,
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-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 101130
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Dog",
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-      "start_time": 13.5849157447593
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_030323.json b/conversations/conv_030323.json
deleted file mode 100644
index 059b27a06df343ef5143fe835a201cac59f245ec..0000000000000000000000000000000000000000
--- a/conversations/conv_030323.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7794-295955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295955.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246972.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12545.flac |",
-      "real_speaker_id": "4246",
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-      "start_time": 14.620690782630756,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246972.flac |",
-      "real_speaker_id": "8778",
-      "position_frames": 66915
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12544.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 24.979649634769046,
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-      "utterance_id": "4246-12544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12544.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 77367
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.923803978059812,
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-      "duration": 3.076196021940188,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295948.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "8778"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030335.json b/conversations/conv_030335.json
deleted file mode 100644
index 3ac8f2ff071ace1631ac977c467184ca0071cb90..0000000000000000000000000000000000000000
--- a/conversations/conv_030335.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.936634479601167,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.731154340433273,
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-      "overlap": false,
-      "utterance_id": "329-862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.98665137985718,
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-      "utterance_id": "8012-273154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-7140.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 107698
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.164521000709797,
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-      "utterance_id": "8012-273154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.206637199640333,
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-      "duration": 4.729997279960832,
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-      "utterance_id": "3909-11695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-11695.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8012/cough/0152.wav",
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-      "speaker_id": "8012"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030339.json b/conversations/conv_030339.json
deleted file mode 100644
index 4fef8bf83db5b9b83525a5a3deb9d18c2517443b..0000000000000000000000000000000000000000
--- a/conversations/conv_030339.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.382866680908133,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8138-293529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293529.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.012404008885575,
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-      "utterance_id": "8138-293531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293531.flac |",
-      "real_speaker_id": "8138",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/954-130627.flac |",
-      "real_speaker_id": "954",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.688130395403128,
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-      "utterance_id": "2393-144496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2393-144496.flac |",
-      "real_speaker_id": "2393",
-      "position_frames": 108854
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_030342.json b/conversations/conv_030342.json
deleted file mode 100644
index efcb4aad3704623e4e858858f3aeb50be3fcda1d..0000000000000000000000000000000000000000
--- a/conversations/conv_030342.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
-      "real_speaker_id": "3142",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.200658796241474,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39666.flac |",
-      "real_speaker_id": "5983",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
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-      "utterance_id": "5983-39652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39652.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.750051684914162,
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-      "utterance_id": "7436-97461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97461.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7436-97461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97461.flac |",
-      "real_speaker_id": "7436",
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 20.11069841440545,
-      "speaker_id": "7436"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030345.json b/conversations/conv_030345.json
deleted file mode 100644
index cdb04de80e641f472f6919cc2e75f80cc4c435d4..0000000000000000000000000000000000000000
--- a/conversations/conv_030345.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8066",
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-      "real_speaker_id": "3092",
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-    },
-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "4236-8927",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030353.json b/conversations/conv_030353.json
deleted file mode 100644
index 0d86dfa9ecac8e9420cd555431c12c228641a6fc..0000000000000000000000000000000000000000
--- a/conversations/conv_030353.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101580.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101580.flac |",
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-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5929/cough/0022.wav",
-      "duration": 0.7479959924050184,
-      "start_time": 17.390762081740462,
-      "speaker_id": "5929"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8677/cough/0015.wav",
-      "duration": 0.5443541942293486,
-      "start_time": 31.45564580577065,
-      "speaker_id": "8677"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030354.json b/conversations/conv_030354.json
deleted file mode 100644
index 89ae277fe0252e33219f1b1d87cfb219c9cebfd5..0000000000000000000000000000000000000000
--- a/conversations/conv_030354.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.228456369655017,
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-      "overlap": false,
-      "utterance_id": "8259-276906",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276906.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.413080892194746,
-      "end_time": 10.782290327168212,
-      "duration": 6.369209434973465,
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-      "utterance_id": "4945-29092",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4945-29092.flac |",
-      "real_speaker_id": "4945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.387721641307268,
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-      "overlap": true,
-      "utterance_id": "8259-276912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276912.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.38015742291424,
-      "end_time": 21.14688031236589,
-      "duration": 4.766722889451649,
-      "start_frame": 262082,
-      "duration_frames": 76267,
-      "overlap": false,
-      "utterance_id": "4945-29092",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4945-29092.flac |",
-      "real_speaker_id": "4945",
-      "position_frames": 101907
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.39614350121426,
-      "end_time": 27.095550941131414,
-      "duration": 5.6994074399171515,
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-      "overlap": false,
-      "utterance_id": "8753-297969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297969.flac |",
-      "real_speaker_id": "8753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.35718178265373,
-      "end_time": 32.0,
-      "duration": 4.642818217346271,
-      "start_frame": 437714,
-      "duration_frames": 74285,
-      "overlap": false,
-      "utterance_id": "4945-29090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4945-29090.flac |",
-      "real_speaker_id": "4945",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
-      "duration": 0.9133560090702948,
-      "start_time": 0.018238102576299944
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
-      "duration": 4.789076322116504,
-      "start_time": 12.929328098096116
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_030358.json b/conversations/conv_030358.json
deleted file mode 100644
index f5ed78d2d0c7b81c356898dbd0c0333a18a0db0f..0000000000000000000000000000000000000000
--- a/conversations/conv_030358.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.3942300122053295,
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-      "duration_frames": 86307,
-      "overlap": false,
-      "utterance_id": "1474-128276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128276.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.566095093931004,
-      "end_time": 10.600225027306648,
-      "duration": 5.0341299333756435,
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-      "overlap": false,
-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.183998221528352,
-      "end_time": 15.409890131006604,
-      "duration": 4.225891909478252,
-      "start_frame": 178943,
-      "duration_frames": 67614,
-      "overlap": false,
-      "utterance_id": "1474-128275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128275.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.359964675280967,
-      "end_time": 22.97140304357328,
-      "duration": 6.611438368292312,
-      "start_frame": 261759,
-      "duration_frames": 105783,
-      "overlap": false,
-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 80546
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.499776916744132,
-      "end_time": 27.299241975058745,
-      "duration": 3.799465058314612,
-      "start_frame": 375996,
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-      "overlap": false,
-      "utterance_id": "1474-172821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-172821.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.89219157788584,
-      "end_time": 32.0,
-      "duration": 4.107808422114161,
-      "start_frame": 446275,
-      "duration_frames": 65724,
-      "overlap": false,
-      "utterance_id": "6594-68896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68896.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 2.539095232900366,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1474/laugh/0077.wav",
-      "duration": 0.96,
-      "start_time": 0,
-      "speaker_id": "1474"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1474/cough/0100.wav",
-      "duration": 0.5448822612638504,
-      "start_time": 0,
-      "speaker_id": "1474"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030362.json b/conversations/conv_030362.json
deleted file mode 100644
index 56968fb21fa01cabe0a9760f60c4055344d238b3..0000000000000000000000000000000000000000
--- a/conversations/conv_030362.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.978342974227489,
-      "duration": 4.978342974227489,
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-      "overlap": false,
-      "utterance_id": "1647-142742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-142742.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.444139949899672,
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-      "duration_frames": 77609,
-      "overlap": false,
-      "utterance_id": "7754-105383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-105383.flac |",
-      "real_speaker_id": "7754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.794471652778018,
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-      "duration": 4.893511188747195,
-      "start_frame": 172711,
-      "duration_frames": 78296,
-      "overlap": false,
-      "utterance_id": "3864-185126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185126.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.807085122092936,
-      "end_time": 22.645927162994727,
-      "duration": 5.838842040901791,
-      "start_frame": 268913,
-      "duration_frames": 93421,
-      "overlap": false,
-      "utterance_id": "1647-142742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-142742.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 79653
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.66588227104316,
-      "end_time": 27.36001059335197,
-      "duration": 3.694128322308809,
-      "start_frame": 378654,
-      "duration_frames": 59106,
-      "overlap": false,
-      "utterance_id": "7754-108640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-108640.flac |",
-      "real_speaker_id": "7754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.84456826041039,
-      "end_time": 32.0,
-      "duration": 4.155431739589609,
-      "start_frame": 445513,
-      "duration_frames": 66486,
-      "overlap": false,
-      "utterance_id": "1647-142742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-142742.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 173074
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_12.wav",
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-      "start_time": 25.04055979747791
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1647/laugh/0030.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "1647"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030374.json b/conversations/conv_030374.json
deleted file mode 100644
index 2f3bc0e872fac6a252dcaa977a83f11b88435844..0000000000000000000000000000000000000000
--- a/conversations/conv_030374.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.30665341425715,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.325170228792594,
-      "duration": 4.325170228792594,
-      "start_frame": 0,
-      "duration_frames": 69202,
-      "overlap": false,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.098040534907373,
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-      "duration_frames": 91793,
-      "overlap": false,
-      "utterance_id": "3703-73732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-73732.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.08773324316623,
-      "end_time": 14.102884755238458,
-      "duration": 3.015151512072228,
-      "start_frame": 177403,
-      "duration_frames": 48242,
-      "overlap": true,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 69202
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.93993098612567,
-      "end_time": 19.63035020651335,
-      "duration": 3.69041922038768,
-      "start_frame": 255038,
-      "duration_frames": 59046,
-      "overlap": false,
-      "utterance_id": "3703-71550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71550.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.900093027221253,
-      "end_time": 25.259004190386957,
-      "duration": 5.358911163165705,
-      "start_frame": 318401,
-      "duration_frames": 85742,
-      "overlap": false,
-      "utterance_id": "6981-70843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
-      "real_speaker_id": "6981",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.56737060192873,
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-      "duration_frames": 91828,
-      "overlap": false,
-      "utterance_id": "3703-73732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-73732.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 91793
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.673657258516357,
-      "end_time": 31.156327604261183,
-      "duration": 0.48267034574482537,
-      "start_frame": 490778,
-      "duration_frames": 7722,
-      "overlap": true,
-      "utterance_id": "3703-73732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-73732.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 183621
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/87/laugh/0038.wav",
-      "duration": 1.56,
-      "start_time": 1.921105605963792,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/87/laugh/0010.wav",
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-      "start_time": 11.328698146588007,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6981/cough/0064.wav",
-      "duration": 0.942472846771625,
-      "start_time": 18.773818039404812,
-      "speaker_id": "6981"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030378.json b/conversations/conv_030378.json
deleted file mode 100644
index d2105fb8968c51178a5c4c49b70b8b2a98e18b4b..0000000000000000000000000000000000000000
--- a/conversations/conv_030378.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "duration": 1.24,
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-      "event_class": "cough",
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-      "speaker_id": "3143"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030379.json b/conversations/conv_030379.json
deleted file mode 100644
index db2a20fe124bd05ba7c201a1ef051c983af46635..0000000000000000000000000000000000000000
--- a/conversations/conv_030379.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124139.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274723.flac |",
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-      "utterance_id": "8180-274725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274725.flac |",
-      "real_speaker_id": "8180",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124140.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53262.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274724.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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\ No newline at end of file
diff --git a/conversations/conv_030381.json b/conversations/conv_030381.json
deleted file mode 100644
index 24399f7134f67b3a3ad73f49f576d252fd827fae..0000000000000000000000000000000000000000
--- a/conversations/conv_030381.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 75337
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-18533.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138113.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_030396.json b/conversations/conv_030396.json
deleted file mode 100644
index 545b5bf7ac658756f154541fe806b05f552474cd..0000000000000000000000000000000000000000
--- a/conversations/conv_030396.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2988-7587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-7587.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-7587.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 97890
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3094",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "2522",
-      "position_frames": 106366
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3094-136458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
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-      "position_frames": 103269
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030397.json b/conversations/conv_030397.json
deleted file mode 100644
index 9ffaaef85e247e4baded670eec97dd05ee54fd83..0000000000000000000000000000000000000000
--- a/conversations/conv_030397.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1559-139353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 17.765295097502964,
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-      "utterance_id": "4054-11077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4054-11077.flac |",
-      "real_speaker_id": "4054",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.39295048364783,
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-      "overlap": false,
-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.335873600830826,
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-      "utterance_id": "1559-139347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 84711
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "4054"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_030401.json b/conversations/conv_030401.json
deleted file mode 100644
index a6476959ee9b6c94ae9a806d56f9a005e7dca1d3..0000000000000000000000000000000000000000
--- a/conversations/conv_030401.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.5275405592914995,
-      "duration": 4.5275405592914995,
-      "start_frame": 0,
-      "duration_frames": 72440,
-      "overlap": false,
-      "utterance_id": "4549-39615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39615.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.020003185635725,
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-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 107441
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.140821182785025,
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-      "duration_frames": 29746,
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-      "utterance_id": "4415-16759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 57258
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "event_class": "Dishes",
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-      "speaker_id": "4415"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030417.json b/conversations/conv_030417.json
deleted file mode 100644
index 9506c5224333dd156e95de915a7b336065f32f83..0000000000000000000000000000000000000000
--- a/conversations/conv_030417.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "781-127518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3083",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
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-    },
-    {
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-      "real_speaker_id": "3083",
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-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  ],
-  "background_events": [
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030421.json b/conversations/conv_030421.json
deleted file mode 100644
index 9f3bfd658dbea2fb14627dd0ac19391bf7a972d3..0000000000000000000000000000000000000000
--- a/conversations/conv_030421.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
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-    {
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-    {
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-      "speaker_id": "2975"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4226/laugh/0019.wav",
-      "duration": 0.5511716961596159,
-      "start_time": 27.756139458418836,
-      "speaker_id": "4226"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4226/laugh/0082.wav",
-      "duration": 1.16,
-      "start_time": 29.381694446739655,
-      "speaker_id": "4226"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030437.json b/conversations/conv_030437.json
deleted file mode 100644
index 70e97a60e830418823b24b96588ff5e43f3d5cf1..0000000000000000000000000000000000000000
--- a/conversations/conv_030437.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.008063019172515,
-      "duration": 4.008063019172515,
-      "start_frame": 0,
-      "duration_frames": 64129,
-      "overlap": false,
-      "utterance_id": "636-128331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128331.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.449207361518392,
-      "end_time": 9.594342418170235,
-      "duration": 5.145135056651844,
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-      "overlap": false,
-      "utterance_id": "4973-24515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24515.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.01885705102698,
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-      "start_frame": 160301,
-      "duration_frames": 90266,
-      "overlap": false,
-      "utterance_id": "3098-5407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5407.flac |",
-      "real_speaker_id": "3098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.47398244425516,
-      "end_time": 20.157554537712347,
-      "duration": 3.683572093457186,
-      "start_frame": 263583,
-      "duration_frames": 58937,
-      "overlap": false,
-      "utterance_id": "4973-24516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24516.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.283912833519288,
-      "end_time": 24.412846704265295,
-      "duration": 4.128933870746008,
-      "start_frame": 324542,
-      "duration_frames": 66062,
-      "overlap": false,
-      "utterance_id": "4973-24514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24514.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.747064174415915,
-      "end_time": 30.04861736619859,
-      "duration": 5.301553191782676,
-      "start_frame": 395953,
-      "duration_frames": 84824,
-      "overlap": false,
-      "utterance_id": "3098-5408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5408.flac |",
-      "real_speaker_id": "3098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.81890546542968,
-      "end_time": 32.0,
-      "duration": 1.1810945345703203,
-      "start_frame": 493102,
-      "duration_frames": 18897,
-      "overlap": false,
-      "utterance_id": "3098-5408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5408.flac |",
-      "real_speaker_id": "3098",
-      "position_frames": 84824
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 13.896951316345337,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
-      "duration": 2.034445293075152,
-      "start_time": 1.0549037555685634
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
-      "duration": 0.254421768707483,
-      "start_time": 30.895721503126428
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4973/laugh/0101.wav",
-      "duration": 1.4,
-      "start_time": 9.612789777996852,
-      "speaker_id": "4973"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3098/cough/0007.wav",
-      "duration": 0.7136880149765225,
-      "start_time": 30.090969992205995,
-      "speaker_id": "3098"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030440.json b/conversations/conv_030440.json
deleted file mode 100644
index b2aea563a37ca7cec624a929354d670badee5eb1..0000000000000000000000000000000000000000
--- a/conversations/conv_030440.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.267754272636062,
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-      "start_frame": 0,
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-      "utterance_id": "6235-36641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6235-36641.flac |",
-      "real_speaker_id": "6235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.583370488530225,
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-      "overlap": false,
-      "utterance_id": "7635-105661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7635-105661.flac |",
-      "real_speaker_id": "7635",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.359305813282077,
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-      "overlap": false,
-      "utterance_id": "6235-36641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6235-36641.flac |",
-      "real_speaker_id": "6235",
-      "position_frames": 100284
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.724431937869337,
-      "end_time": 24.10698441862384,
-      "duration": 5.3825524807545015,
-      "start_frame": 299590,
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-      "overlap": true,
-      "utterance_id": "4356-6498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6498.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.809380622732036,
-      "end_time": 29.355709500828457,
-      "duration": 4.546328878096422,
-      "start_frame": 396950,
-      "duration_frames": 72741,
-      "overlap": false,
-      "utterance_id": "7635-105661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7635-105661.flac |",
-      "real_speaker_id": "7635",
-      "position_frames": 68398
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.87207444176012,
-      "end_time": 32.0,
-      "duration": 2.1279255582398804,
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-      "duration_frames": 34046,
-      "overlap": false,
-      "utterance_id": "4356-6498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6498.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 86120
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6235/laugh/0007.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7635/laugh/0061.wav",
-      "duration": 0.5375862794529511,
-      "start_time": 29.364283813126967,
-      "speaker_id": "7635"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030447.json b/conversations/conv_030447.json
deleted file mode 100644
index cb0813a020072d0dd14ac5ff2486f601bc1130ab..0000000000000000000000000000000000000000
--- a/conversations/conv_030447.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1200-135067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135067.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.204940577658367,
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-      "utterance_id": "348-128030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-128030.flac |",
-      "real_speaker_id": "348",
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-      "utterance_id": "5977-46900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "5977-46900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 76313
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.712013676527974,
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-      "utterance_id": "348-128030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-128030.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 59883
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.629424796787053,
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-      "duration": 1.3705752032129475,
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-      "utterance_id": "1200-135043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135043.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_030456.json b/conversations/conv_030456.json
deleted file mode 100644
index 5118d091e1d25d3d6cfa6bd9250c40d8369d7e0f..0000000000000000000000000000000000000000
--- a/conversations/conv_030456.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3538935191862906,
-      "duration": 3.3538935191862906,
-      "start_frame": 0,
-      "duration_frames": 53662,
-      "overlap": false,
-      "utterance_id": "830-130728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130728.flac |",
-      "real_speaker_id": "830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.9141036139825056,
-      "end_time": 8.761990371035047,
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-      "utterance_id": "830-130728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130728.flac |",
-      "real_speaker_id": "830",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.754498139929094,
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-    {
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 70506
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/830/laugh/0038.wav",
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-      "speaker_id": "830"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/830/laugh/0048.wav",
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-      "start_time": 13.570537800769795,
-      "speaker_id": "830"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1815/laugh/0158.wav",
-      "duration": 0.6658697086210177,
-      "start_time": 24.37196737033095,
-      "speaker_id": "1815"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/679/laugh/0006.wav",
-      "duration": 0.9512812506150119,
-      "start_time": 29.87334668678038,
-      "speaker_id": "679"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030457.json b/conversations/conv_030457.json
deleted file mode 100644
index d60adf957c9460a92482df509505a49274171816..0000000000000000000000000000000000000000
--- a/conversations/conv_030457.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.130095774243507,
-      "duration": 6.130095774243507,
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-      "overlap": false,
-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.816230901295882,
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-      "duration": 5.4303940264433415,
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-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 98081
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.57931072232163,
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-      "overlap": false,
-      "utterance_id": "8296-279865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-279865.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.670377396267646,
-      "end_time": 23.8358471668204,
-      "duration": 5.165469770552753,
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-      "duration_frames": 82647,
-      "overlap": false,
-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 184967
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.48195893750971,
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-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 267614
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.395456108566503,
-      "end_time": 32.0,
-      "duration": 1.6045438914334973,
-      "start_frame": 486327,
-      "duration_frames": 25672,
-      "overlap": false,
-      "utterance_id": "6758-72288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6758-72288.flac |",
-      "real_speaker_id": "6758",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_030460.json b/conversations/conv_030460.json
deleted file mode 100644
index 0f05a7fe984694e6b72500b1157565643321b1d2..0000000000000000000000000000000000000000
--- a/conversations/conv_030460.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40469.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
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-      "real_speaker_id": "844",
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-      "start_time": 10.171885564271374,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-282406.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.646741266198603,
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-      "utterance_id": "8097-282406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-282406.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 105137
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.978154765508922,
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-      "overlap": false,
-      "utterance_id": "5620-40466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40466.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "844-133697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-133697.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 0,
-      "speaker_id": "5620"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8097"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030476.json b/conversations/conv_030476.json
deleted file mode 100644
index 139ec20b460a851426464a202579219e3638cafb..0000000000000000000000000000000000000000
--- a/conversations/conv_030476.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.114436012589515,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4926-23311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23311.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.326138848923243,
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-      "utterance_id": "128-134883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23281.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.137057488521148,
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-      "duration_frames": 71540,
-      "overlap": true,
-      "utterance_id": "517-121740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121740.flac |",
-      "real_speaker_id": "517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.223373459861442,
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-      "real_speaker_id": "4926",
-      "position_frames": 91524
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_030483.json b/conversations/conv_030483.json
deleted file mode 100644
index ce896eaaef08687c15ef36990b317c67403fd34e..0000000000000000000000000000000000000000
--- a/conversations/conv_030483.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.650946771488364,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3618-175930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175930.flac |",
-      "real_speaker_id": "3618",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.297455907417628,
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-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "duration": 1.56,
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-      "event_class": "laugh",
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-      "duration": 1.68,
-      "start_time": 16.485008976315623,
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-      "speaker_id": "3618"
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-      "event_class": "cough",
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-      "duration": 0.9284424614825821,
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-      "event_class": "cough",
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-      "duration": 1.08,
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-      "speaker_id": "3618"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030484.json b/conversations/conv_030484.json
deleted file mode 100644
index 2c965371fedf676312f73157aae5c08c1fb44ded..0000000000000000000000000000000000000000
--- a/conversations/conv_030484.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.765977423553707,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.71060236221498,
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-      "duration": 5.396673380397054,
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-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.52891233774978,
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-      "duration": 3.0157521113344545,
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-      "duration_frames": 48252,
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-      "utterance_id": "5280-204996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5280-204996.flac |",
-      "real_speaker_id": "5280",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.905713087386552,
-      "end_time": 20.20504507130627,
-      "duration": 6.299331983919719,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
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-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5280-204996.flac |",
-      "real_speaker_id": "5280",
-      "position_frames": 48252
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 187135
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_030492.json b/conversations/conv_030492.json
deleted file mode 100644
index d0131009e67a7cfcdc7fdff92d2008e97c0cac72..0000000000000000000000000000000000000000
--- a/conversations/conv_030492.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5860-64970.flac |",
-      "real_speaker_id": "5860",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 97167
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.431956882329136,
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-      "duration_frames": 52860,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7945-112012.flac |",
-      "real_speaker_id": "7945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.692052651663623,
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 196679
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_030495.json b/conversations/conv_030495.json
deleted file mode 100644
index 66fd95a6ed753adb43904fd11c2d9a2bb7d6ff4d..0000000000000000000000000000000000000000
--- a/conversations/conv_030495.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.795964947004084,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102420.flac |",
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-      "position_frames": 0
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-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
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-      "speaker_id": 0,
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-      "real_speaker_id": "927",
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 18.97593108772642,
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-      "utterance_id": "927-132462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132462.flac |",
-      "real_speaker_id": "927",
-      "position_frames": 71056
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030499.json b/conversations/conv_030499.json
deleted file mode 100644
index fdbcdf0c8f5ed835f00261b252ab6b9785a54b8e..0000000000000000000000000000000000000000
--- a/conversations/conv_030499.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8630-305213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305213.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "6232",
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-      "utterance_id": "8630-305212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305212.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8630/cough/0093.wav",
-      "duration": 0.88,
-      "start_time": 3.941737449698209,
-      "speaker_id": "8630"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030502.json b/conversations/conv_030502.json
deleted file mode 100644
index 0471f6bba2941b0251d1ba38549db05216a1183a..0000000000000000000000000000000000000000
--- a/conversations/conv_030502.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.691122988689678,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.119138765428379,
-      "duration": 4.119138765428379,
-      "start_frame": 0,
-      "duration_frames": 65906,
-      "overlap": false,
-      "utterance_id": "2748-160959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160959.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.165451269395269,
-      "end_time": 10.578456402810176,
-      "duration": 5.413005133414907,
-      "start_frame": 82647,
-      "duration_frames": 86608,
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-      "utterance_id": "56-1730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1730.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.645940773429528,
-      "end_time": 16.662796053766083,
-      "duration": 5.016855280336555,
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-      "overlap": false,
-      "utterance_id": "2762-160610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2762-160610.flac |",
-      "real_speaker_id": "2762",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.08995049688379,
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-      "duration": 6.49163573710479,
-      "start_frame": 273439,
-      "duration_frames": 103866,
-      "overlap": false,
-      "utterance_id": "2748-160985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.882155119894144,
-      "end_time": 27.18852439194859,
-      "duration": 3.3063692720544458,
-      "start_frame": 382114,
-      "duration_frames": 52901,
-      "overlap": true,
-      "utterance_id": "2748-160959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160959.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 65906
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.544972443478372,
-      "end_time": 31.691122988689678,
-      "duration": 3.146150545211305,
-      "start_frame": 456719,
-      "duration_frames": 50338,
-      "overlap": false,
-      "utterance_id": "56-1732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1732.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-      "start_time": 7.405910985227378
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.0714504634772999,
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-      "speaker_id": "2762"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2748/cough/0042.wav",
-      "duration": 1.28,
-      "start_time": 15.78025274700076,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/56/cough/0054.wav",
-      "duration": 0.8249188295646377,
-      "start_time": 31.175081170435362,
-      "speaker_id": "56"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030505.json b/conversations/conv_030505.json
deleted file mode 100644
index eaaeb9419e3d5d24628ba69cfaf919c6158d8d14..0000000000000000000000000000000000000000
--- a/conversations/conv_030505.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.503874717230983,
-      "duration": 4.503874717230983,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "954-130627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/954-130627.flac |",
-      "real_speaker_id": "954",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.37358350901416,
-      "end_time": 9.568729947162383,
-      "duration": 4.195146438148224,
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-      "duration_frames": 67122,
-      "overlap": false,
-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.290511181377717,
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-      "duration_frames": 108581,
-      "overlap": false,
-      "utterance_id": "954-130627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/954-130627.flac |",
-      "real_speaker_id": "954",
-      "position_frames": 72061
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.46590294516116,
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-      "duration_frames": 70641,
-      "overlap": false,
-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 67122
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.147221176154723,
-      "end_time": 25.374727971899276,
-      "duration": 3.227506795744553,
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-      "duration_frames": 51640,
-      "overlap": false,
-      "utterance_id": "954-130627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/954-130627.flac |",
-      "real_speaker_id": "954",
-      "position_frames": 180642
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.848553244257058,
-      "end_time": 30.952563651242336,
-      "duration": 5.104010406985279,
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-      "overlap": false,
-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.49561878736496,
-      "end_time": 32.0,
-      "duration": 0.5043812126350389,
-      "start_frame": 503929,
-      "duration_frames": 8070,
-      "overlap": false,
-      "utterance_id": "954-130627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/954-130627.flac |",
-      "real_speaker_id": "954",
-      "position_frames": 232282
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
-      "duration": 0.30428571428571427,
-      "start_time": 11.218483535769892
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/954/cough/0038.wav",
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-      "speaker_id": "954"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/laugh/0068.wav",
-      "duration": 1.3943936722946,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/cough/0063.wav",
-      "duration": 1.021273295384874,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/954/laugh/0025.wav",
-      "duration": 1.2,
-      "start_time": 17.098808380184284,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/954/cough/0063.wav",
-      "duration": 0.7274148148872053,
-      "start_time": 31.272585185112796,
-      "speaker_id": "954"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030509.json b/conversations/conv_030509.json
deleted file mode 100644
index 3b4fb754ba3a358168c909ca33f8d359dbbf4e5c..0000000000000000000000000000000000000000
--- a/conversations/conv_030509.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.257287166824906,
-      "duration": 6.257287166824906,
-      "start_frame": 0,
-      "duration_frames": 100116,
-      "overlap": false,
-      "utterance_id": "6906-65918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.42737904300118,
-      "end_time": 10.778392017873623,
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-      "utterance_id": "2309-152160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152160.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8250-279777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-279777.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.804302808459536,
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-      "overlap": false,
-      "utterance_id": "6906-65918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 100116
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.657427593906366,
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-      "overlap": false,
-      "utterance_id": "8250-279777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-279777.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 49456
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.08257048813701,
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-      "duration": 4.560860351435272,
-      "start_frame": 417321,
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-      "overlap": false,
-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.253426824729086,
-      "end_time": 32.0,
-      "duration": 0.7465731752709139,
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-      "duration_frames": 11945,
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-      "utterance_id": "8250-286289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-286289.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8250/cough/0016.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8250/laugh/0038.wav",
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-      "start_time": 19.645041116693918,
-      "speaker_id": "8250"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030512.json b/conversations/conv_030512.json
deleted file mode 100644
index 68845e17e3f24324fb59e4e2bcf7ad64c5b8fb61..0000000000000000000000000000000000000000
--- a/conversations/conv_030512.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5778-12761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-12761.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.6267521885149145,
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-      "utterance_id": "6099-67860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-67860.flac |",
-      "real_speaker_id": "6099",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "7239-63500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 20.00945234036372,
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-    {
-      "segment_id": "seg0004",
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-  "background_events": [
-    {
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5778/laugh/0075.wav",
-      "duration": 1.24,
-      "start_time": 21.16241749648029,
-      "speaker_id": "5778"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030513.json b/conversations/conv_030513.json
deleted file mode 100644
index 95fab867e99e608512ed0dfa19249d9b07d13423..0000000000000000000000000000000000000000
--- a/conversations/conv_030513.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.284926153522328,
-      "duration": 4.284926153522328,
-      "start_frame": 0,
-      "duration_frames": 68558,
-      "overlap": false,
-      "utterance_id": "4260-176853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176853.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.793296866737968,
-      "end_time": 10.896889629603189,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176853.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 68558
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.704485057438689,
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-      "duration": 3.8785959617238195,
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-      "duration_frames": 62057,
-      "overlap": false,
-      "utterance_id": "2162-185436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-185436.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.57013901866679,
-      "end_time": 21.5183237382573,
-      "duration": 4.948184719590509,
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-      "duration_frames": 79170,
-      "overlap": false,
-      "utterance_id": "4260-176854",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176854.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.804392377914713,
-      "end_time": 26.130981466946785,
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-      "utterance_id": "2162-185436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-185436.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 62057
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.36675112194547,
-      "end_time": 30.515147968191744,
-      "duration": 4.148396846246276,
-      "start_frame": 421868,
-      "duration_frames": 66374,
-      "overlap": true,
-      "utterance_id": "7140-72205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72205.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.36263595646752,
-      "end_time": 32.0,
-      "duration": 0.6373640435324788,
-      "start_frame": 501802,
-      "duration_frames": 10197,
-      "overlap": false,
-      "utterance_id": "2162-181961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-181961.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 10.98266871307076,
-      "speaker_id": "4260"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4260/laugh/0140.wav",
-      "duration": 0.7889317425266269,
-      "start_time": 21.718853551110456,
-      "speaker_id": "4260"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2162/laugh/0004.wav",
-      "duration": 1.44,
-      "start_time": 29.83202996418766,
-      "speaker_id": "2162"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030525.json b/conversations/conv_030525.json
deleted file mode 100644
index f36b59851cfefdb867863c04212a16d9b0786c3b..0000000000000000000000000000000000000000
--- a/conversations/conv_030525.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.847986473041367,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3238-134398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.518223979084784,
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-      "utterance_id": "2256-137627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137627.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "duration": 3.770537597303365,
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-      "overlap": true,
-      "utterance_id": "3238-134398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 103324
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.144484377809395,
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-      "utterance_id": "534-123059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-123059.flac |",
-      "real_speaker_id": "534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.07802590491913,
-      "end_time": 26.984329815262228,
-      "duration": 5.906303910343098,
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-      "duration_frames": 94500,
-      "overlap": false,
-      "utterance_id": "2256-137627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137627.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 66528
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.907950452183506,
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-      "duration": 3.9400360208578595,
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-      "duration_frames": 63040,
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-      "utterance_id": "3238-134398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 163652
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.4,
-      "start_time": 0,
-      "speaker_id": "3238"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3238/cough/0077.wav",
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-      "speaker_id": "3238"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/534/laugh/0101.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3238/cough/0023.wav",
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-      "speaker_id": "3238"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030529.json b/conversations/conv_030529.json
deleted file mode 100644
index 7b00f3fdb288698633610e98226c024bf5764c30..0000000000000000000000000000000000000000
--- a/conversations/conv_030529.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.198926284017368,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124147.flac |",
-      "real_speaker_id": "322",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3686-171134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171134.flac |",
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-      "real_speaker_id": "6199",
-      "position_frames": 0
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-    {
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-      "utterance_id": "3686-171133",
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-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.878206207323615,
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-      "duration_frames": 90847,
-      "overlap": false,
-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 69171
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "6199-80041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-80041.flac |",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_030533.json b/conversations/conv_030533.json
deleted file mode 100644
index 22a1cdbc6c3e1700f8f4c6613c31b965de7d4b61..0000000000000000000000000000000000000000
--- a/conversations/conv_030533.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.641178196703418,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7335-290365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7335-290365.flac |",
-      "real_speaker_id": "7335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7335-290365",
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-    {
-      "segment_id": "seg0003",
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-  "foreground_events": [
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-      "speaker_id": "2204"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030538.json b/conversations/conv_030538.json
deleted file mode 100644
index b113ba3cd66ac8882b21f857908a415136917309..0000000000000000000000000000000000000000
--- a/conversations/conv_030538.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.56311133520499,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "310-129055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 6.5045171062081995,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 100215
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-      "speaker_id": 1,
-      "start_time": 12.330725080239882,
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-      "overlap": false,
-      "utterance_id": "310-129055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 186340
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.303329151823245,
-      "end_time": 24.676607513756238,
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-      "overlap": true,
-      "utterance_id": "1168-134958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.29091849181604,
-      "end_time": 31.56311133520499,
-      "duration": 6.27219284338895,
-      "start_frame": 404654,
-      "duration_frames": 100355,
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-      "utterance_id": "8747-293952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "start_time": 10.475741511590776
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_5.wav",
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-      "start_time": 14.716788301160603
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "duration": 1.16,
-      "start_time": 0,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 18.290408461380164,
-      "speaker_id": "310"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030544.json b/conversations/conv_030544.json
deleted file mode 100644
index 500d7960ff0254ed3e396b68c0a297da8bcf64d6..0000000000000000000000000000000000000000
--- a/conversations/conv_030544.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.763073036804936,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5918-46890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.9573246322479765,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141270.flac |",
-      "real_speaker_id": "1226",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 103122
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 20.172377854996146,
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-      "utterance_id": "5918-46890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 171575
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 76091,
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-      "utterance_id": "1226-141279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 58615
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "Alarm_bell_ringing",
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-    {
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-      "start_time": 17.49214910727902,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1226"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030545.json b/conversations/conv_030545.json
deleted file mode 100644
index a15611f16888f7a86fe0c26411c95d1cae316882..0000000000000000000000000000000000000000
--- a/conversations/conv_030545.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7867-275218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-275218.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "6138",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1776-142744.flac |",
-      "real_speaker_id": "1776",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 1.8882727714493086,
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-      "utterance_id": "1776-142744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1776-142744.flac |",
-      "real_speaker_id": "1776",
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-  ],
-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_030548.json b/conversations/conv_030548.json
deleted file mode 100644
index 4d0023c0b3da08acce7d715f6a9c4229b8a12193..0000000000000000000000000000000000000000
--- a/conversations/conv_030548.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.5726309871965,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-  "foreground_events": [
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-      "start_time": 11.220809276556231
-    },
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
-      "duration": 1.263108000997193,
-      "start_time": 28.831427680695832
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1633/laugh/0070.wav",
-      "duration": 0.8505259367877173,
-      "start_time": 4.361549013508187,
-      "speaker_id": "1633"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1633/cough/0112.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "1633"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1633/cough/0033.wav",
-      "duration": 0.6090527937752339,
-      "start_time": 15.95609423554484,
-      "speaker_id": "1633"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2998/cough/0074.wav",
-      "duration": 0.7181771030126808,
-      "start_time": 25.54015302425513,
-      "speaker_id": "2998"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030552.json b/conversations/conv_030552.json
deleted file mode 100644
index fd0f86b9924b1794950f8990efd5ea60fa5f4aa1..0000000000000000000000000000000000000000
--- a/conversations/conv_030552.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.158208226431068,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.831101085916696,
-      "duration": 4.831101085916696,
-      "start_frame": 0,
-      "duration_frames": 77297,
-      "overlap": false,
-      "utterance_id": "6553-86683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-86683.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.223705099609445,
-      "end_time": 9.603219348581453,
-      "duration": 4.379514248972008,
-      "start_frame": 83579,
-      "duration_frames": 70072,
-      "overlap": false,
-      "utterance_id": "7150-118730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-118730.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.584088955245004,
-      "end_time": 15.108648490980627,
-      "duration": 4.524559535735623,
-      "start_frame": 169345,
-      "duration_frames": 72392,
-      "overlap": false,
-      "utterance_id": "6553-86683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-86683.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 77297
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.444867452741839,
-      "end_time": 21.865622157157816,
-      "duration": 6.420754704415976,
-      "start_frame": 247117,
-      "duration_frames": 102732,
-      "overlap": false,
-      "utterance_id": "7150-111618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-111618.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.80587911356294,
-      "end_time": 27.088281359335838,
-      "duration": 5.282402245772897,
-      "start_frame": 348894,
-      "duration_frames": 84518,
-      "overlap": true,
-      "utterance_id": "6553-86683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-86683.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 149689
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.697476144348943,
-      "end_time": 31.158208226431068,
-      "duration": 3.4607320820821244,
-      "start_frame": 443159,
-      "duration_frames": 55371,
-      "overlap": true,
-      "utterance_id": "3356-132542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3356-132542.flac |",
-      "real_speaker_id": "3356",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 22.56219954648526,
-      "start_time": 3.616393609388657
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
-      "duration": 0.2651700680272109,
-      "start_time": 6.612043659638818
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
-      "duration": 1.7762275515490469,
-      "start_time": 10.093484659568006
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6553/laugh/0115.wav",
-      "duration": 0.9470831349124813,
-      "start_time": 0,
-      "speaker_id": "6553"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7150/laugh/0056.wav",
-      "duration": 1.0,
-      "start_time": 9.762978141812916,
-      "speaker_id": "7150"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6553/cough/0005.wav",
-      "duration": 0.36631564144485346,
-      "start_time": 10.096170286010114,
-      "speaker_id": "6553"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6553/cough/0044.wav",
-      "duration": 0.9372708877486089,
-      "start_time": 22.178434004744698,
-      "speaker_id": "6553"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030564.json b/conversations/conv_030564.json
deleted file mode 100644
index 1437a4b781b55bddc2cf1d45946bc7a1b8f53a81..0000000000000000000000000000000000000000
--- a/conversations/conv_030564.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.63339509573597,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.494529130283615,
-      "duration": 5.494529130283615,
-      "start_frame": 0,
-      "duration_frames": 87912,
-      "overlap": false,
-      "utterance_id": "7026-86943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86943.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.2960981833031,
-      "end_time": 11.52237705728341,
-      "duration": 5.226278873980312,
-      "start_frame": 100737,
-      "duration_frames": 83620,
-      "overlap": false,
-      "utterance_id": "5784-61949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61949.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.958404634675855,
-      "end_time": 16.10701781047105,
-      "duration": 4.148613175795195,
-      "start_frame": 191334,
-      "duration_frames": 66377,
-      "overlap": false,
-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.64429091755391,
-      "end_time": 20.475261016681916,
-      "duration": 3.8309700991280065,
-      "start_frame": 266308,
-      "duration_frames": 61295,
-      "overlap": false,
-      "utterance_id": "5784-61948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61948.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.58457251980503,
-      "end_time": 25.09012707694233,
-      "duration": 3.5055545571373026,
-      "start_frame": 345353,
-      "duration_frames": 56088,
-      "overlap": false,
-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 66377
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.556643730515887,
-      "end_time": 28.991926653756455,
-      "duration": 3.435282923240569,
-      "start_frame": 408906,
-      "duration_frames": 54964,
-      "overlap": false,
-      "utterance_id": "5784-61949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61949.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 83620
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.5867810217349,
-      "end_time": 31.63339509573597,
-      "duration": 2.04661407400107,
-      "start_frame": 473388,
-      "duration_frames": 32745,
-      "overlap": true,
-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 122465
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 17.40617471586689,
-      "start_time": 7.379181963307574
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_3.wav",
-      "duration": 0.5554648526077097,
-      "start_time": 25.07985487790354
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7026/laugh/0101.wav",
-      "duration": 1.0522117027200215,
-      "start_time": 0,
-      "speaker_id": "7026"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7026/cough/0045.wav",
-      "duration": 0.35715043812930913,
-      "start_time": 0,
-      "speaker_id": "7026"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5784/laugh/0043.wav",
-      "duration": 0.8210655133226032,
-      "start_time": 18.236733540795992,
-      "speaker_id": "5784"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3082/laugh/0059.wav",
-      "duration": 1.2,
-      "start_time": 20.141278146268796,
-      "speaker_id": "3082"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5784/laugh/0075.wav",
-      "duration": 0.8655500292933618,
-      "start_time": 24.58081778672356,
-      "speaker_id": "5784"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3082/laugh/0069.wav",
-      "duration": 1.12,
-      "start_time": 28.359683674901117,
-      "speaker_id": "3082"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030568.json b/conversations/conv_030568.json
deleted file mode 100644
index 1550196ce20f703dd48bfe210b8f9d998d7b6121..0000000000000000000000000000000000000000
--- a/conversations/conv_030568.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.556438598092495,
-  "num_speakers": 2,
-  "overlap_rate": 0.6666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.925026454574094,
-      "duration": 5.925026454574094,
-      "start_frame": 0,
-      "duration_frames": 94800,
-      "overlap": false,
-      "utterance_id": "6568-79375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-79375.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.960311897981528,
-      "end_time": 12.476894434926319,
-      "duration": 6.5165825369447905,
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-      "overlap": true,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.839614769766452,
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-      "duration": 5.503324820815305,
-      "start_frame": 205433,
-      "duration_frames": 88053,
-      "overlap": true,
-      "utterance_id": "6568-69911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-69911.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.810026759182882,
-      "end_time": 25.235288895200892,
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-      "duration_frames": 86804,
-      "overlap": true,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 104265
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.0219171941999,
-      "end_time": 30.21256888595175,
-      "duration": 4.190651691751849,
-      "start_frame": 416350,
-      "duration_frames": 67050,
-      "overlap": false,
-      "utterance_id": "6568-79375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-79375.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 94800
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.73823855649046,
-      "end_time": 31.556438598092495,
-      "duration": 0.818200041602033,
-      "start_frame": 491811,
-      "duration_frames": 13091,
-      "overlap": true,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 191069
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_18.wav",
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-      "start_time": 18.372100869128364
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6568/laugh/0019.wav",
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-      "start_time": 13.971679456211785,
-      "speaker_id": "6568"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6875/laugh/0074.wav",
-      "duration": 0.6804031099780767,
-      "start_time": 23.270008378153054,
-      "speaker_id": "6875"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6568/cough/0103.wav",
-      "duration": 0.7075238050282404,
-      "start_time": 28.96280685988557,
-      "speaker_id": "6568"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6875/laugh/0010.wav",
-      "duration": 0.8570475043869676,
-      "start_time": 29.854500754088583,
-      "speaker_id": "6875"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6875/cough/0072.wav",
-      "duration": 0.40189897322353385,
-      "start_time": 31.598101026776465,
-      "speaker_id": "6875"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030572.json b/conversations/conv_030572.json
deleted file mode 100644
index dfd5e4cd18bba250b1953d117ba5a17d29c43243..0000000000000000000000000000000000000000
--- a/conversations/conv_030572.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.68585971514545,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.339981907386809,
-      "duration": 5.339981907386809,
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-      "overlap": false,
-      "utterance_id": "1168-134958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
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-      "utterance_id": "5561-39621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-39621.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 85439
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.5269891550937,
-      "end_time": 21.93307280072159,
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-      "start_frame": 264431,
-      "duration_frames": 86497,
-      "overlap": false,
-      "utterance_id": "5561-41615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-41615.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.746931353842616,
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-      "utterance_id": "1168-134958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 145555
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.123455850302893,
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-      "start_frame": 481975,
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-      "overlap": true,
-      "utterance_id": "3744-177438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-177438.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
-      "duration": 4.5821261028979485,
-      "start_time": 7.434245221710381
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
-      "duration": 2.914658106806391,
-      "start_time": 24.19884911003344
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_030579.json b/conversations/conv_030579.json
deleted file mode 100644
index 46ba3c4d817797fcb00d50546b1c6c732e65bfc7..0000000000000000000000000000000000000000
--- a/conversations/conv_030579.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.9439654409406115,
-      "duration": 4.9439654409406115,
-      "start_frame": 0,
-      "duration_frames": 79103,
-      "overlap": false,
-      "utterance_id": "7331-86047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86047.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.060703130306069,
-      "end_time": 8.87258653857803,
-      "duration": 3.8118834082719606,
-      "start_frame": 80971,
-      "duration_frames": 60990,
-      "overlap": false,
-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.734584767642708,
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-      "duration": 4.911619994624837,
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-      "duration_frames": 78585,
-      "overlap": false,
-      "utterance_id": "2975-151995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.452983826013085,
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-      "duration_frames": 74851,
-      "overlap": false,
-      "utterance_id": "7331-86025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86025.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.231380230208675,
-      "end_time": 25.821289278431287,
-      "duration": 5.58990904822261,
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-      "overlap": true,
-      "utterance_id": "2975-151995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
-      "position_frames": 78585
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.312794521333664,
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-      "duration_frames": 51703,
-      "overlap": true,
-      "utterance_id": "7331-86047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86047.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 79103
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.995543912357157,
-      "end_time": 32.0,
-      "duration": 1.0044560876428434,
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-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 60990
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_0.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7331/laugh/0043.wav",
-      "duration": 1.2320589885934252,
-      "start_time": 20.401878738967447,
-      "speaker_id": "7331"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7331/cough/0064.wav",
-      "duration": 0.5503807172666773,
-      "start_time": 29.579573205118788,
-      "speaker_id": "7331"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2618/laugh/0000.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "2618"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030580.json b/conversations/conv_030580.json
deleted file mode 100644
index 9588ece4c00df7eb3af5d78bc4c5d79307bb9cdd..0000000000000000000000000000000000000000
--- a/conversations/conv_030580.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.295534255564586,
-      "duration": 5.295534255564586,
-      "start_frame": 0,
-      "duration_frames": 84728,
-      "overlap": false,
-      "utterance_id": "4379-18034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18034.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.937240523241041,
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-      "overlap": true,
-      "utterance_id": "8772-295710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-295710.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.975401689437195,
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-      "utterance_id": "4379-18034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18034.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 84728
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.771503175022854,
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-      "duration_frames": 53892,
-      "overlap": false,
-      "utterance_id": "551-129024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.38670811748011,
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-      "utterance_id": "4379-18034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18034.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 168769
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8772-270777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.2431581832293,
-      "end_time": 32.0,
-      "duration": 1.7568418167706987,
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-      "overlap": false,
-      "utterance_id": "4379-18039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18039.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_7.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4379/cough/0122.wav",
-      "duration": 0.92,
-      "start_time": 19.33739153069957,
-      "speaker_id": "4379"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8772/laugh/0096.wav",
-      "duration": 0.530052407655238,
-      "start_time": 22.957121357872865,
-      "speaker_id": "8772"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030587.json b/conversations/conv_030587.json
deleted file mode 100644
index fa4d3882274888ce369dc5d5f1dd1868d1864fae..0000000000000000000000000000000000000000
--- a/conversations/conv_030587.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.435457722900946,
-      "duration": 6.435457722900946,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4289-12723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-12723.flac |",
-      "real_speaker_id": "4289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.973629939122228,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
-      "real_speaker_id": "7026",
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-    {
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-      "overlap": false,
-      "utterance_id": "4289-21393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-21393.flac |",
-      "real_speaker_id": "4289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.86210150537507,
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-      "overlap": false,
-      "utterance_id": "7026-86946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86946.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.08223353179316,
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-      "utterance_id": "7026-86946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86946.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 104354
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.197719804953522,
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-      "duration": 1.8022801950464782,
-      "start_frame": 483163,
-      "duration_frames": 28836,
-      "overlap": false,
-      "utterance_id": "4289-12723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-12723.flac |",
-      "real_speaker_id": "4289",
-      "position_frames": 102967
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 2.5800047788170444,
-      "start_time": 20.00952179527394
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_030591.json b/conversations/conv_030591.json
deleted file mode 100644
index a98c6e197940aefa484e37adb9134df8e0fcf127..0000000000000000000000000000000000000000
--- a/conversations/conv_030591.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.1752931988910817,
-      "duration": 3.1752931988910817,
-      "start_frame": 0,
-      "duration_frames": 50804,
-      "overlap": false,
-      "utterance_id": "957-130588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.521718997277012,
-      "end_time": 9.816343608230344,
-      "duration": 6.294624610953333,
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-      "real_speaker_id": "1920",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
-      "real_speaker_id": "1696",
-      "position_frames": 79435
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.724321323267848,
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-      "utterance_id": "957-132537",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132537.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 51809
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "start_time": 30.77617729721184,
-      "speaker_id": "957"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030596.json b/conversations/conv_030596.json
deleted file mode 100644
index 3951e7431a869207ba9d247168d94030cc253c09..0000000000000000000000000000000000000000
--- a/conversations/conv_030596.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4174-107938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-107938.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.148495480330567,
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-      "utterance_id": "5671-50454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-159.flac |",
-      "real_speaker_id": "4174",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-24628.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-69287.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5671-24628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-24628.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 80542
-    },
-    {
-      "segment_id": "seg0006",
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-      "start_time": 31.65629527609309,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-159.flac |",
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-      "position_frames": 68180
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-  "paralinguistic_events": [
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-      "speaker_id": "5671"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030600.json b/conversations/conv_030600.json
deleted file mode 100644
index 69ab79b978730a1088d05c689f7c10021b60adbf..0000000000000000000000000000000000000000
--- a/conversations/conv_030600.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 93806
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8689.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6173-76445.flac |",
-      "real_speaker_id": "6173",
-      "position_frames": 75433
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8689.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 59957
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
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-      "position_frames": 170399
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  ],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5810/laugh/0066.wav",
-      "duration": 1.08,
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-    },
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1049/laugh/0046.wav",
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-      "start_time": 30.592601252982924,
-      "speaker_id": "1049"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030607.json b/conversations/conv_030607.json
deleted file mode 100644
index 525bb5916933cf76619f4d5c9ec4758b27f68183..0000000000000000000000000000000000000000
--- a/conversations/conv_030607.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4800-38660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-38660.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "segment_id": "seg0002",
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-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
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-      "position_frames": 0
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-    {
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-    },
-    {
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-      "position_frames": 67912
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4800/cough/0035.wav",
-      "duration": 0.8799309434308733,
-      "start_time": 0,
-      "speaker_id": "4800"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8846/laugh/0101.wav",
-      "duration": 1.16776788121056,
-      "start_time": 8.887663067438345,
-      "speaker_id": "8846"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7552/laugh/0042.wav",
-      "duration": 1.12,
-      "start_time": 11.064101533522509,
-      "speaker_id": "7552"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4800/cough/0025.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "4800"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030611.json b/conversations/conv_030611.json
deleted file mode 100644
index 2e8a4168883e6737df3b72e99257e049b2e4f648..0000000000000000000000000000000000000000
--- a/conversations/conv_030611.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.75134022218242,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.913178612304136,
-      "duration": 5.913178612304136,
-      "start_frame": 0,
-      "duration_frames": 94610,
-      "overlap": false,
-      "utterance_id": "1870-164330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164330.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.328108428270417,
-      "end_time": 10.779988026794378,
-      "duration": 4.451879598523961,
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-      "utterance_id": "4969-73975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73975.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.656326071700468,
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-      "duration": 5.044369957877493,
-      "start_frame": 186501,
-      "duration_frames": 80709,
-      "overlap": false,
-      "utterance_id": "8466-285142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.182254376721442,
-      "end_time": 21.388160756098546,
-      "duration": 4.205906379377104,
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-      "overlap": false,
-      "utterance_id": "8466-274557",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-274557.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.775418826175255,
-      "end_time": 25.02092743347768,
-      "duration": 3.245508607302426,
-      "start_frame": 348406,
-      "duration_frames": 51928,
-      "overlap": false,
-      "utterance_id": "4969-58757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-58757.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.383998046787237,
-      "end_time": 31.75134022218242,
-      "duration": 6.3673421753951835,
-      "start_frame": 406143,
-      "duration_frames": 101877,
-      "overlap": false,
-      "utterance_id": "4969-73974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73974.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
-      "duration": 1.0793749608814962,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/laugh/0001.wav",
-      "duration": 1.0,
-      "start_time": 23.942118189707486,
-      "speaker_id": "4969"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/laugh/0005.wav",
-      "duration": 0.798687427683842,
-      "start_time": 31.20131257231616,
-      "speaker_id": "4969"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/cough/0073.wav",
-      "duration": 0.7709621839888574,
-      "start_time": 25.82254417070915,
-      "speaker_id": "4969"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030616.json b/conversations/conv_030616.json
deleted file mode 100644
index 32ffe490c4e6fd80f9cec55ceac0fb1f81945d54..0000000000000000000000000000000000000000
--- a/conversations/conv_030616.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7197-66278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66278.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.729749732560479,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128448.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7197-66277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.52708913821021,
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-      "duration": 6.385564984998335,
-      "start_frame": 296433,
-      "duration_frames": 102169,
-      "overlap": true,
-      "utterance_id": "6139-58869",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58869.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.005492844869234,
-      "end_time": 29.123525023305646,
-      "duration": 3.1180321784364122,
-      "start_frame": 416087,
-      "duration_frames": 49888,
-      "overlap": false,
-      "utterance_id": "622-128448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128448.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 89410
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.838788739545443,
-      "end_time": 32.0,
-      "duration": 2.1612112604545572,
-      "start_frame": 477420,
-      "duration_frames": 34579,
-      "overlap": false,
-      "utterance_id": "6139-58869",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58869.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 102169
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
-      "duration": 0.2245124716553288,
-      "start_time": 13.922716988831771
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-    {
-      "event_class": "Blender",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6139/laugh/0083.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6139/cough/0116.wav",
-      "duration": 1.324242578903743,
-      "start_time": 22.002270279874903,
-      "speaker_id": "6139"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030620.json b/conversations/conv_030620.json
deleted file mode 100644
index 5d82ec7cc1a83a0694561c06a4cd573b5bd2f399..0000000000000000000000000000000000000000
--- a/conversations/conv_030620.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.176197276219305,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "duration_frames": 81828,
-      "overlap": false,
-      "utterance_id": "5810-8674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8674.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.168056083638226,
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-      "duration": 4.628746526666905,
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-      "overlap": false,
-      "utterance_id": "789-153211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153211.flac |",
-      "real_speaker_id": "789",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.168171234976418,
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-      "duration": 6.886285845653872,
-      "start_frame": 178690,
-      "duration_frames": 110180,
-      "overlap": false,
-      "utterance_id": "339-132718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132718.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.742108964976055,
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-      "utterance_id": "5810-8689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8689.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.633416824145197,
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-      "overlap": true,
-      "utterance_id": "339-132717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132717.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.16450481421349,
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-      "duration_frames": 32187,
-      "overlap": true,
-      "utterance_id": "789-153215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153215.flac |",
-      "real_speaker_id": "789",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5810/laugh/0024.wav",
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-      "start_time": 0,
-      "speaker_id": "5810"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/789/laugh/0005.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "5810"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/339/laugh/0055.wav",
-      "duration": 1.08,
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-      "speaker_id": "339"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/789/laugh/0038.wav",
-      "duration": 1.28,
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-      "speaker_id": "789"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030636.json b/conversations/conv_030636.json
deleted file mode 100644
index beabec0dafea319f46ad3091d4b3f51af47819f3..0000000000000000000000000000000000000000
--- a/conversations/conv_030636.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.471974924139483,
-      "duration": 4.471974924139483,
-      "start_frame": 0,
-      "duration_frames": 71551,
-      "overlap": false,
-      "utterance_id": "2498-134785",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134785.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.813775976119856,
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-      "utterance_id": "2498-134785",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134785.flac |",
-      "real_speaker_id": "2498",
-      "position_frames": 71551
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "2498-134816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2498-134816.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "4411",
-      "position_frames": 0
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-      "utterance_id": "7264-92314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7264-92314.flac |",
-      "real_speaker_id": "7264",
-      "position_frames": 0
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-      "real_speaker_id": "2498",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030641.json b/conversations/conv_030641.json
deleted file mode 100644
index 5ee61d46abec0b6744dad096c4a6b9f3627a20bb..0000000000000000000000000000000000000000
--- a/conversations/conv_030641.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150901.flac |",
-      "real_speaker_id": "2195",
-      "position_frames": 0
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-      "real_speaker_id": "2195",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.854004519935273,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-131458.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-141263.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_030646.json b/conversations/conv_030646.json
deleted file mode 100644
index 34d7c3d95ad3366b73c462445c6f9e81c2dde0d2..0000000000000000000000000000000000000000
--- a/conversations/conv_030646.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
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-      "position_frames": 140909
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\ No newline at end of file
diff --git a/conversations/conv_030650.json b/conversations/conv_030650.json
deleted file mode 100644
index 7f3f54db88c822cb52cf79b294b8c1354a8fda15..0000000000000000000000000000000000000000
--- a/conversations/conv_030650.json
+++ /dev/null
@@ -1,193 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.351984278423437,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "7796-269934",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7131/cough/0130.wav",
-      "duration": 1.0276740537135245,
-      "start_time": 28.191564913606896,
-      "speaker_id": "7131"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030657.json b/conversations/conv_030657.json
deleted file mode 100644
index 0c1285f8c4509609f23abf2ca122ffff53bd0d2b..0000000000000000000000000000000000000000
--- a/conversations/conv_030657.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.4426792877021226,
-      "duration": 3.4426792877021226,
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-      "overlap": false,
-      "utterance_id": "8644-262282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262282.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.424442971955389,
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-      "duration": 5.077777678833214,
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-      "utterance_id": "6111-59779",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6111-59779.flac |",
-      "real_speaker_id": "6111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.840940454532042,
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-      "duration": 3.2734463036100245,
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-      "overlap": false,
-      "utterance_id": "6111-59791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6111-59791.flac |",
-      "real_speaker_id": "6111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.819717597613431,
-      "end_time": 19.49636915675117,
-      "duration": 5.6766515591377384,
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-      "duration_frames": 90826,
-      "overlap": false,
-      "utterance_id": "6111-59777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6111-59777.flac |",
-      "real_speaker_id": "6111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.733413919277908,
-      "end_time": 25.97425605067033,
-      "duration": 6.240842131392423,
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-      "utterance_id": "6111-59791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6111-59791.flac |",
-      "real_speaker_id": "6111",
-      "position_frames": 52375
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.60220948896602,
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-      "duration": 5.397790511033978,
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-      "utterance_id": "5206-19376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5206-19376.flac |",
-      "real_speaker_id": "5206",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
-      "duration": 1.0891456936924797,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6111/laugh/0026.wav",
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-      "start_time": 18.618190136671004,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6111/cough/0092.wav",
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-      "start_time": 26.054330842055812,
-      "speaker_id": "6111"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030661.json b/conversations/conv_030661.json
deleted file mode 100644
index 42338dc86e83ba5346536b6543a3ba4b25ec8dff..0000000000000000000000000000000000000000
--- a/conversations/conv_030661.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.038915300293575,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
-      "real_speaker_id": "7337",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 72338
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "2823-160949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160949.flac |",
-      "real_speaker_id": "2823",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.915378673788453,
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-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 107006
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.095364441524197,
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-      "utterance_id": "2823-160949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160949.flac |",
-      "real_speaker_id": "2823",
-      "position_frames": 92897
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.3984410776467431,
-      "start_time": 31.601558922353256,
-      "speaker_id": "2823"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030677.json b/conversations/conv_030677.json
deleted file mode 100644
index c1113897fb1cdb7611c96d4535860244af615835..0000000000000000000000000000000000000000
--- a/conversations/conv_030677.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2045-158081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2045-158081.flac |",
-      "real_speaker_id": "2045",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28402.flac |",
-      "real_speaker_id": "5043",
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-      "utterance_id": "2162-185436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-185436.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.83969756773914,
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-      "utterance_id": "5043-28396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.449742079448132,
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-      "utterance_id": "5043-28401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28401.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.57139171829595,
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-      "duration": 5.428608281704051,
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-      "duration_frames": 86857,
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-      "utterance_id": "5043-28401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28401.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 103635
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5043/cough/0018.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5043/laugh/0095.wav",
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-      "start_time": 14.834715333904526,
-      "speaker_id": "5043"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030682.json b/conversations/conv_030682.json
deleted file mode 100644
index d405b8073c847a99b5e9fa244b3de5acdb989e50..0000000000000000000000000000000000000000
--- a/conversations/conv_030682.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.598511433642373,
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-      "duration_frames": 67354,
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-      "utterance_id": "731-365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-365.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.607156937998848,
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-      "overlap": false,
-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-366.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 99047
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "731-366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-366.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 74835
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
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-}
\ No newline at end of file
diff --git a/conversations/conv_030683.json b/conversations/conv_030683.json
deleted file mode 100644
index 4770c0b8f5b099db8213bcd896b5f85b8cd362bc..0000000000000000000000000000000000000000
--- a/conversations/conv_030683.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.98039949274831,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.465643714462776,
-      "duration": 5.465643714462776,
-      "start_frame": 0,
-      "duration_frames": 87450,
-      "overlap": false,
-      "utterance_id": "8190-284433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284433.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.0775286788603315,
-      "end_time": 9.515270303231588,
-      "duration": 3.437741624371257,
-      "start_frame": 97240,
-      "duration_frames": 55003,
-      "overlap": false,
-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.574494360625462,
-      "end_time": 14.45896493845478,
-      "duration": 3.88447057782932,
-      "start_frame": 169191,
-      "duration_frames": 62151,
-      "overlap": false,
-      "utterance_id": "7981-112057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112057.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.751107142913584,
-      "end_time": 21.059125464275233,
-      "duration": 6.308018321361647,
-      "start_frame": 236017,
-      "duration_frames": 100928,
-      "overlap": false,
-      "utterance_id": "7981-112056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112056.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.19048916427844,
-      "end_time": 27.677257906469105,
-      "duration": 5.486768742190665,
-      "start_frame": 355047,
-      "duration_frames": 87788,
-      "overlap": false,
-      "utterance_id": "8190-284433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284433.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 87450
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.992143485304993,
-      "end_time": 31.98039949274831,
-      "duration": 3.988256007443319,
-      "start_frame": 447874,
-      "duration_frames": 63812,
-      "overlap": false,
-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 55003
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 7.6258208788359125
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7981/laugh/0130.wav",
-      "duration": 0.9161859249585488,
-      "start_time": 21.077126478627743,
-      "speaker_id": "7981"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3148/cough/0002.wav",
-      "duration": 0.59798801858508,
-      "start_time": 29.66328414858833,
-      "speaker_id": "3148"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030694.json b/conversations/conv_030694.json
deleted file mode 100644
index ba2da066c866f2cce4dc8a4b7e2d24a84a92ea38..0000000000000000000000000000000000000000
--- a/conversations/conv_030694.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.206295048841732,
-      "duration": 3.206295048841732,
-      "start_frame": 0,
-      "duration_frames": 51300,
-      "overlap": false,
-      "utterance_id": "3088-5441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5441.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.149979161370354,
-      "end_time": 8.67365234688737,
-      "duration": 4.523673185517015,
-      "start_frame": 66399,
-      "duration_frames": 72378,
-      "overlap": false,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.302557581335467,
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-      "overlap": false,
-      "utterance_id": "3088-5436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5436.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.194871528822308,
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-      "duration": 5.704151892704338,
-      "start_frame": 227117,
-      "duration_frames": 91266,
-      "overlap": false,
-      "utterance_id": "5588-39648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.56976986940821,
-      "end_time": 26.927190116200727,
-      "duration": 6.35742024679252,
-      "start_frame": 329116,
-      "duration_frames": 101718,
-      "overlap": false,
-      "utterance_id": "3088-5436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5436.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 75573
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.115851067620376,
-      "end_time": 32.0,
-      "duration": 4.884148932379624,
-      "start_frame": 433853,
-      "duration_frames": 78146,
-      "overlap": false,
-      "utterance_id": "5588-39648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 91266
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3088/laugh/0001.wav",
-      "duration": 1.2,
-      "start_time": 3.4890585030361745,
-      "speaker_id": "3088"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3088/cough/0042.wav",
-      "duration": 0.4714532432105052,
-      "start_time": 0.6423002268504882,
-      "speaker_id": "3088"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/332/laugh/0039.wav",
-      "duration": 0.8970842954117534,
-      "start_time": 8.72923538119994,
-      "speaker_id": "332"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030698.json b/conversations/conv_030698.json
deleted file mode 100644
index a3ec4cee5dfa492a41d55c792285fd1d23e1e7fb..0000000000000000000000000000000000000000
--- a/conversations/conv_030698.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.744136382520398,
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-      "start_frame": 0,
-      "duration_frames": 91906,
-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.106133150872454,
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-      "duration_frames": 59975,
-      "overlap": false,
-      "utterance_id": "6402-102886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-102886.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6402-105212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105212.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 24.880305882957714,
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-      "duration_frames": 55015,
-      "overlap": false,
-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 66687
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.508515197415058,
-      "end_time": 32.0,
-      "duration": 3.4914848025849423,
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-      "real_speaker_id": "6402",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/laugh/0009.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6402/laugh/0092.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6402/laugh/0132.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6402/cough/0135.wav",
-      "duration": 1.0,
-      "start_time": 27.33979393216641,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030703.json b/conversations/conv_030703.json
deleted file mode 100644
index 0c920ceb642c08b439c99a38601b79a646925adb..0000000000000000000000000000000000000000
--- a/conversations/conv_030703.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.831636617069852,
-      "duration": 3.831636617069852,
-      "start_frame": 0,
-      "duration_frames": 61306,
-      "overlap": false,
-      "utterance_id": "3792-176660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "3215-5758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5758.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3792/laugh/0018.wav",
-      "duration": 1.5584391145730436,
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-      "speaker_id": "3792"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3792/cough/0009.wav",
-      "duration": 1.1995396333664945,
-      "start_time": 30.800460366633505,
-      "speaker_id": "3792"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030704.json b/conversations/conv_030704.json
deleted file mode 100644
index 3ae252ad3e16eab131c41492d5dff23824732f24..0000000000000000000000000000000000000000
--- a/conversations/conv_030704.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.167143362043327,
-      "duration": 5.167143362043327,
-      "start_frame": 0,
-      "duration_frames": 82674,
-      "overlap": false,
-      "utterance_id": "5561-39621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-39621.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.944874025536603,
-      "end_time": 10.430958305786906,
-      "duration": 5.486084280250304,
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-      "duration_frames": 87777,
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-      "utterance_id": "3008-164327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.828533843016356,
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-      "duration": 4.407904329324306,
-      "start_frame": 189256,
-      "duration_frames": 70526,
-      "overlap": false,
-      "utterance_id": "2004-147173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147173.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.692799941775466,
-      "end_time": 20.748004513196967,
-      "duration": 4.055204571421501,
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-      "duration_frames": 64883,
-      "overlap": false,
-      "utterance_id": "5561-41616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-41616.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.244020634249562,
-      "end_time": 25.97918681502276,
-      "duration": 4.7351661807731995,
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-      "utterance_id": "2004-147967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147967.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.894566644014677,
-      "end_time": 30.44061722542866,
-      "duration": 4.546050581413985,
-      "start_frame": 414313,
-      "duration_frames": 72736,
-      "overlap": true,
-      "utterance_id": "5561-41616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-41616.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 64883
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.179293810859047,
-      "end_time": 32.0,
-      "duration": 0.8207061891409531,
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-      "utterance_id": "3008-164327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 87777
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 2.2330385487528344,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5561/laugh/0046.wav",
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-      "start_time": 18.396256083012698,
-      "speaker_id": "5561"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030705.json b/conversations/conv_030705.json
deleted file mode 100644
index 9954e6f8eceafea9000d404537a112687bf9ddf9..0000000000000000000000000000000000000000
--- a/conversations/conv_030705.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6088-34571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34571.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294114.flac |",
-      "real_speaker_id": "8820",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-28399.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.191844347840078,
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-      "utterance_id": "8820-294114",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294114.flac |",
-      "real_speaker_id": "8820",
-      "position_frames": 78430
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.787408045841172,
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-      "utterance_id": "6088-34571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34571.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 100855
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.05134771507729,
-      "end_time": 32.0,
-      "duration": 3.9486522849227086,
-      "start_frame": 448821,
-      "duration_frames": 63178,
-      "overlap": false,
-      "utterance_id": "8820-294113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294113.flac |",
-      "real_speaker_id": "8820",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030708.json b/conversations/conv_030708.json
deleted file mode 100644
index 32b25acebd4ada00ee828373075aa94548c694f7..0000000000000000000000000000000000000000
--- a/conversations/conv_030708.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126292.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298546.flac |",
-      "real_speaker_id": "8838",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298546.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 90241
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-    {
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126292.flac |",
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-      "position_frames": 72614
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_030712.json b/conversations/conv_030712.json
deleted file mode 100644
index 22e3a07f923d7146e52945c5af60a1a80c9c3969..0000000000000000000000000000000000000000
--- a/conversations/conv_030712.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/323/laugh/0035.wav",
-      "duration": 1.5,
-      "start_time": 18.7168283294857,
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-      "event_class": "laugh",
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-      "speaker_id": "2654"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030715.json b/conversations/conv_030715.json
deleted file mode 100644
index 5cd0069c2d8e4f958ea3ceb0c0cfdb4d78666d81..0000000000000000000000000000000000000000
--- a/conversations/conv_030715.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.145091159457795,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-122594.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.874473479584567,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.688801275531077,
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-      "utterance_id": "265-122594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-122594.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 63509
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-      "speaker_id": 0,
-      "start_time": 17.214785549539222,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174236.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 23.615754336976163,
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-      "overlap": true,
-      "utterance_id": "585-294811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 89395
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.56726018963496,
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-      "start_frame": 441076,
-      "duration_frames": 57245,
-      "overlap": false,
-      "utterance_id": "3541-174236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174236.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 88298
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_3.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/265/laugh/0036.wav",
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-      "speaker_id": "265"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/585/laugh/0072.wav",
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-      "duration": 1.4580505229304999,
-      "start_time": 25.99580707123715,
-      "speaker_id": "3541"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030724.json b/conversations/conv_030724.json
deleted file mode 100644
index 2ebe38c2021456f382ae46783f55b30f81ff2925..0000000000000000000000000000000000000000
--- a/conversations/conv_030724.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4959-28865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.432513377254695,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122453.flac |",
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-      "real_speaker_id": "4848",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28894.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-28247.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 68799
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.069571599206924,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1878/cough/0055.wav",
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-      "speaker_id": "1878"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030728.json b/conversations/conv_030728.json
deleted file mode 100644
index 00ff5997cf7491fe5ab222a54d911d19e6a42c51..0000000000000000000000000000000000000000
--- a/conversations/conv_030728.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7239",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130101.flac |",
-      "real_speaker_id": "510",
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-      "real_speaker_id": "7239",
-      "position_frames": 94619
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130101.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 69209
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.350603558873814,
-      "end_time": 32.0,
-      "duration": 0.6493964411261857,
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-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 77700
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_9.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_030729.json b/conversations/conv_030729.json
deleted file mode 100644
index 6473d719d975aa6ec2198c489ff6a8a3ddfa3ec7..0000000000000000000000000000000000000000
--- a/conversations/conv_030729.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.487762687067338,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 65222
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.984478261314948,
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-      "utterance_id": "310-129055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8169/laugh/0006.wav",
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-      "start_time": 16.694381351832646,
-      "speaker_id": "8169"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/310/laugh/0025.wav",
-      "duration": 1.2,
-      "start_time": 27.620427305960767,
-      "speaker_id": "310"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030732.json b/conversations/conv_030732.json
deleted file mode 100644
index e26c8c70c5bd884e2c6fe569af054bacbb0082cd..0000000000000000000000000000000000000000
--- a/conversations/conv_030732.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.663764305680513,
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-      "utterance_id": "3060-163540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.762242796230086,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-93308.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 0
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-      "start_time": 11.837587629569018,
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-      "overlap": false,
-      "utterance_id": "3060-163540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 90620
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.583746724689856,
-      "end_time": 24.356993068600246,
-      "duration": 4.7732463439103885,
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-      "duration_frames": 76371,
-      "overlap": false,
-      "utterance_id": "3060-163540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 198612
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.53426453428851,
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-      "utterance_id": "7556-93308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-93308.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 69409
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.68923957047331,
-      "end_time": 32.0,
-      "duration": 1.3107604295266917,
-      "start_frame": 491027,
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-      "overlap": false,
-      "utterance_id": "3060-163542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163542.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "cough",
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-      "speaker_id": "7556"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_030742.json b/conversations/conv_030742.json
deleted file mode 100644
index b8e7ab70046330a2f034290fea8b03744337eda3..0000000000000000000000000000000000000000
--- a/conversations/conv_030742.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4830-25898.flac |",
-      "real_speaker_id": "4830",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4830-25898.flac |",
-      "real_speaker_id": "4830",
-      "position_frames": 91596
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-283127.flac |",
-      "real_speaker_id": "8273",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 24.578295707948413,
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-      "duration_frames": 70002,
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-      "utterance_id": "4830-25904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4830-25904.flac |",
-      "real_speaker_id": "4830",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-283130.flac |",
-      "real_speaker_id": "8273",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-      "duration": 1.08,
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-      "speaker_id": "8273"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030745.json b/conversations/conv_030745.json
deleted file mode 100644
index dbc8f00f3552edcc57a543e5f2b2d9636a91f269..0000000000000000000000000000000000000000
--- a/conversations/conv_030745.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1851-148962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "318-124224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1851-151817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
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-      "real_speaker_id": "318",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "4693-17508",
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-      "real_speaker_id": "4693",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1851-151817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 61922
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.27920278378187,
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-      "real_speaker_id": "318",
-      "position_frames": 89985
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-  "background_events": [
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_030749.json b/conversations/conv_030749.json
deleted file mode 100644
index baa889481f188d0f3ec311e4e2a8aaa24c2a47a6..0000000000000000000000000000000000000000
--- a/conversations/conv_030749.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8164-279592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279592.flac |",
-      "real_speaker_id": "8164",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.369585595343185,
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-      "real_speaker_id": "3082",
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "2827",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.450060779370887,
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-      "utterance_id": "8164-279592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279592.flac |",
-      "real_speaker_id": "8164",
-      "position_frames": 107601
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-      "speaker_id": "8164"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030753.json b/conversations/conv_030753.json
deleted file mode 100644
index 2256404e07e395b046df94c09e75928efac1fa0e..0000000000000000000000000000000000000000
--- a/conversations/conv_030753.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3008-164328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.308911669860475,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 76720
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123013.flac |",
-      "real_speaker_id": "362",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.466918250988947,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34499.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.457564262025574,
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-      "duration": 2.542435737974426,
-      "start_frame": 471321,
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-      "overlap": false,
-      "utterance_id": "362-123013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123013.flac |",
-      "real_speaker_id": "362",
-      "position_frames": 65142
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-      "speaker_id": "5248"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030754.json b/conversations/conv_030754.json
deleted file mode 100644
index 87f7b1b814eb7a3c3b217eacb0e683534427c3a4..0000000000000000000000000000000000000000
--- a/conversations/conv_030754.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 108755
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-      "segment_id": "seg0003",
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-      "utterance_id": "6333-39676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39676.flac |",
-      "real_speaker_id": "6333",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 22.301388049310603,
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-      "overlap": false,
-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6333-39671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39671.flac |",
-      "real_speaker_id": "6333",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6333/laugh/0020.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1370/laugh/0000.wav",
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-      "speaker_id": "1370"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030765.json b/conversations/conv_030765.json
deleted file mode 100644
index 05b5d65aa372a405d2ca902304255b3d1872482b..0000000000000000000000000000000000000000
--- a/conversations/conv_030765.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6332-64734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.254648622800845,
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-      "utterance_id": "1559-139347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7138-73705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-73705.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.14185492934424,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64733.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.10460081023968,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 72621
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.26160476968618,
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-      "duration_frames": 36185,
-      "overlap": false,
-      "utterance_id": "6332-64734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 92565
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7138/cough/0138.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1559/cough/0101.wav",
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-      "start_time": 21.232481279066,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6332/laugh/0068.wav",
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-      "start_time": 29.808998619933732,
-      "speaker_id": "6332"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030769.json b/conversations/conv_030769.json
deleted file mode 100644
index ffb9e404857a6ac8e0136eee64085737876970a4..0000000000000000000000000000000000000000
--- a/conversations/conv_030769.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_030772.json b/conversations/conv_030772.json
deleted file mode 100644
index fac59a9744436e7145c23924f955d42e2d07c4c5..0000000000000000000000000000000000000000
--- a/conversations/conv_030772.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.659068079695253,
-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_030773.json b/conversations/conv_030773.json
deleted file mode 100644
index 75e37c705f4d356f8721e78c2caa9b0d5daefd19..0000000000000000000000000000000000000000
--- a/conversations/conv_030773.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_030786.json b/conversations/conv_030786.json
deleted file mode 100644
index ffb40fb2fbc7e5f0635d67d23ceb50d9dce9e83c..0000000000000000000000000000000000000000
--- a/conversations/conv_030786.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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\ No newline at end of file
diff --git a/conversations/conv_030790.json b/conversations/conv_030790.json
deleted file mode 100644
index 6bc455b7e1c6ba9524a9bd444d259819dfa2a5af..0000000000000000000000000000000000000000
--- a/conversations/conv_030790.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "964-124560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/964-124560.flac |",
-      "real_speaker_id": "964",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.807757027407952,
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-      "utterance_id": "5296-26679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
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-      "start_time": 17.86635891066926,
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-      "utterance_id": "964-124569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/964-124569.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.104864644116795,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/964-124560.flac |",
-      "real_speaker_id": "964",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 83502
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-  "background_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_030791.json b/conversations/conv_030791.json
deleted file mode 100644
index 649774899ffc88874ae6f1a5e06c7054a18a923d..0000000000000000000000000000000000000000
--- a/conversations/conv_030791.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.40948990998222,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5825",
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-      "real_speaker_id": "5825",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-53035.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_030801.json b/conversations/conv_030801.json
deleted file mode 100644
index 35143666a6e5bcba3839b4800750ee839b8f5c68..0000000000000000000000000000000000000000
--- a/conversations/conv_030801.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_030816.json b/conversations/conv_030816.json
deleted file mode 100644
index c13fa288b9e1144a1027e8de07a2cc649be4763b..0000000000000000000000000000000000000000
--- a/conversations/conv_030816.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4122/cough/0031.wav",
-      "duration": 0.8197703826813492,
-      "start_time": 20.17852638722238,
-      "speaker_id": "4122"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2785/laugh/0049.wav",
-      "duration": 0.718180495681085,
-      "start_time": 31.281819504318914,
-      "speaker_id": "2785"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030817.json b/conversations/conv_030817.json
deleted file mode 100644
index f802145c9a4646e192364b5ae9d7229284b8f3c4..0000000000000000000000000000000000000000
--- a/conversations/conv_030817.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.9320328900949875,
-      "duration": 5.9320328900949875,
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-      "utterance_id": "1235-135884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135884.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.150048220093138,
-      "end_time": 9.533018712198103,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.150233521276174,
-      "end_time": 16.67820033629996,
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-      "overlap": false,
-      "utterance_id": "1235-135887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135887.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.828767688799253,
-      "end_time": 23.01156641566834,
-      "duration": 5.182798726869086,
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-      "duration_frames": 82924,
-      "overlap": false,
-      "utterance_id": "1235-135887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135887.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 104447
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.203115445576678,
-      "end_time": 27.722913260310477,
-      "duration": 4.519797814733798,
-      "start_frame": 371249,
-      "duration_frames": 72316,
-      "overlap": false,
-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.142394217274237,
-      "end_time": 32.0,
-      "duration": 3.857605782725763,
-      "start_frame": 450278,
-      "duration_frames": 61721,
-      "overlap": false,
-      "utterance_id": "1235-135883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135883.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
-      "duration": 3.0293650663522116,
-      "start_time": 2.864462545818824
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/cough/0052.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1235/laugh/0099.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "1235"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030821.json b/conversations/conv_030821.json
deleted file mode 100644
index f26e3238d6733d340a168f2be3671fa094162685..0000000000000000000000000000000000000000
--- a/conversations/conv_030821.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.7935003575656,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.188245987824677,
-      "duration": 4.188245987824677,
-      "start_frame": 0,
-      "duration_frames": 67011,
-      "overlap": false,
-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.531620453384933,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155949.flac |",
-      "real_speaker_id": "3072",
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-      "utterance_id": "7188-107627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 17.577692866658655,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 96163
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.5447380530571,
-      "end_time": 27.992890063119255,
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-      "overlap": false,
-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 67011
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.22103490826597,
-      "end_time": 31.7935003575656,
-      "duration": 3.572465449299628,
-      "start_frame": 451536,
-      "duration_frames": 57159,
-      "overlap": true,
-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 138181
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_15.wav",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-      "start_time": 23.604338015682803
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/laugh/0083.wav",
-      "duration": 0.81696179394636,
-      "start_time": 1.4325672164790646,
-      "speaker_id": "4955"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/laugh/0099.wav",
-      "duration": 1.3245732016719196,
-      "start_time": 25.616442167456427,
-      "speaker_id": "4955"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/cough/0034.wav",
-      "duration": 0.360144234746308,
-      "start_time": 31.639855765253692,
-      "speaker_id": "4955"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030837.json b/conversations/conv_030837.json
deleted file mode 100644
index bfcfd8ee2bd5c63625a81855ac4b352ebb7af785..0000000000000000000000000000000000000000
--- a/conversations/conv_030837.json
+++ /dev/null
@@ -1,201 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.111228769919117,
-      "duration": 3.111228769919117,
-      "start_frame": 0,
-      "duration_frames": 49779,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.0887926837625184,
-      "end_time": 6.354626719112455,
-      "duration": 3.2658340353499358,
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-      "duration_frames": 52253,
-      "overlap": true,
-      "utterance_id": "6324-64062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 7.251866235419574,
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-      "duration_frames": 88474,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 49779
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 16.16659132074011,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 138253
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 21.926114265892036,
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-      "duration": 3.077167519387572,
-      "start_frame": 350817,
-      "duration_frames": 49234,
-      "overlap": true,
-      "utterance_id": "6324-64063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 25.106823578895668,
-      "end_time": 28.831953060331603,
-      "duration": 3.725129481435935,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 49729
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 2,
-      "start_time": 30.3456279627557,
-      "end_time": 32.0,
-      "duration": 1.6543720372443005,
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-      "duration_frames": 26469,
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-      "utterance_id": "6324-64062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 52253
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/laugh/0025.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6324/laugh/0034.wav",
-      "duration": 1.36,
-      "start_time": 3.35683102496257,
-      "speaker_id": "6324"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6324/cough/0033.wav",
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-    {
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/cough/0064.wav",
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-      "event_class": "laugh",
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-      "start_time": 27.76457284636571,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8168/cough/0020.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6324/cough/0011.wav",
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-      "speaker_id": "6324"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030840.json b/conversations/conv_030840.json
deleted file mode 100644
index e084927c1432b3f12eab8a40a0c4ab827b55b511..0000000000000000000000000000000000000000
--- a/conversations/conv_030840.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "614-161065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-161065.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7909-106370.flac |",
-      "real_speaker_id": "7909",
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-      "real_speaker_id": "781",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_030841.json b/conversations/conv_030841.json
deleted file mode 100644
index 57664c1aa84bbb103baebdc43be01172ebaeca03..0000000000000000000000000000000000000000
--- a/conversations/conv_030841.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.38981159547063,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
-      "position_frames": 49170
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7092-56730.flac |",
-      "real_speaker_id": "7092",
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\ No newline at end of file
diff --git a/conversations/conv_030851.json b/conversations/conv_030851.json
deleted file mode 100644
index a7053a29bf5a82342da6344d5cc65016ab73a757..0000000000000000000000000000000000000000
--- a/conversations/conv_030851.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-132101.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
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-      "real_speaker_id": "1006",
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-      "real_speaker_id": "1006",
-      "position_frames": 84360
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1006-135212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1006-135212.flac |",
-      "real_speaker_id": "1006",
-      "position_frames": 162185
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-  ],
-  "background_events": [
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-    {
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030856.json b/conversations/conv_030856.json
deleted file mode 100644
index 77a4eb6fec869fa9897197b025bb511c9a8c0dc8..0000000000000000000000000000000000000000
--- a/conversations/conv_030856.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "3779",
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-      "real_speaker_id": "2411",
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-      "real_speaker_id": "3779",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 81951
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-  "background_events": [
-    {
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2411/laugh/0108.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030860.json b/conversations/conv_030860.json
deleted file mode 100644
index 2ab6b246bdb5dabba17e27571d7737ae4dd88d10..0000000000000000000000000000000000000000
--- a/conversations/conv_030860.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.162124093404238,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
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-    {
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-      "utterance_id": "557-129797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129797.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 15.857925149353687,
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 29.614722517038643,
-      "speaker_id": "557"
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-      "event_class": "cough",
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-      "speaker_id": "557"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030876.json b/conversations/conv_030876.json
deleted file mode 100644
index 97bba2a51fc6cc158d2dc2eec3be565d0cb98fc5..0000000000000000000000000000000000000000
--- a/conversations/conv_030876.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2531-156720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156720.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.6537831189971,
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-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.702733769303627,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
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-    {
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-      "utterance_id": "2531-156720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156720.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 89927
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 4.162251063326451,
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-      "overlap": false,
-      "utterance_id": "6904-262305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262305.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_2.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "6904"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030883.json b/conversations/conv_030883.json
deleted file mode 100644
index b396910911710fa87c86a6b0fb6d03781ebb0d7b..0000000000000000000000000000000000000000
--- a/conversations/conv_030883.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3467-166572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166572.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-5706.flac |",
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-      "utterance_id": "3467-166572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166572.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 74705
-    },
-    {
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "4034",
-      "position_frames": 82790
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 82023
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_6.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4034/laugh/0022.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1704"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030884.json b/conversations/conv_030884.json
deleted file mode 100644
index ee4b292c1b66e05fd492e7bffe9c188fff0d9006..0000000000000000000000000000000000000000
--- a/conversations/conv_030884.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3314-135987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-135987.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "3314-135987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-135987.flac |",
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-      "position_frames": 87952
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-129659.flac |",
-      "real_speaker_id": "296",
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-    {
-      "segment_id": "seg0004",
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "296-129659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-129659.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 69890
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "296"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030892.json b/conversations/conv_030892.json
deleted file mode 100644
index 65325c06c557a7b8b5c0d87bb5ab0f398369d9aa..0000000000000000000000000000000000000000
--- a/conversations/conv_030892.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.040239187966174,
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-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 58206
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 137527
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.587898352698623,
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-      "utterance_id": "441-130108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-130108.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.256690881254507,
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-      "duration": 3.7433091187454934,
-      "start_frame": 452107,
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-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 240634
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
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-      "duration": 1.32,
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-}
\ No newline at end of file
diff --git a/conversations/conv_030895.json b/conversations/conv_030895.json
deleted file mode 100644
index 9ca448f2966072df177d7820a79e8c56de232195..0000000000000000000000000000000000000000
--- a/conversations/conv_030895.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7143-88749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88749.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-38223.flac |",
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-      "real_speaker_id": "3955",
-      "position_frames": 106484
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.848006769427915,
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-      "utterance_id": "7240-92202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92202.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.871489063575165,
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-      "utterance_id": "3955-38223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-38223.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 182016
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "3955"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030899.json b/conversations/conv_030899.json
deleted file mode 100644
index ddfe8438a461590699d4cd1060410d3074376a97..0000000000000000000000000000000000000000
--- a/conversations/conv_030899.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "8414-284675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8414-284675.flac |",
-      "real_speaker_id": "8414",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.013670526746581,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40470.flac |",
-      "real_speaker_id": "5620",
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-    {
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-      "real_speaker_id": "5620",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "3340",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.465068146044548,
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-      "utterance_id": "8414-284674",
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-      "real_speaker_id": "8414",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.63295290304977,
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-      "utterance_id": "5620-40471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40471.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030904.json b/conversations/conv_030904.json
deleted file mode 100644
index 17165565ee90f1e317e70fc2255338490238df14..0000000000000000000000000000000000000000
--- a/conversations/conv_030904.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "3796-6400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-6400.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40571.flac |",
-      "real_speaker_id": "6446",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 0
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-      "start_time": 17.791524113322733,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16815.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40544.flac |",
-      "real_speaker_id": "6446",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
-      "real_speaker_id": "6446",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-      "event_class": "Frying",
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-      "start_time": 28.552469539222734,
-      "speaker_id": "6446"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030905.json b/conversations/conv_030905.json
deleted file mode 100644
index a2c3886b15c07161d9757d3a75f089d84a28ee29..0000000000000000000000000000000000000000
--- a/conversations/conv_030905.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6535-66371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-66371.flac |",
-      "real_speaker_id": "6535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.381460234595175,
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-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "2299-6525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.027946132815167,
-      "end_time": 22.77705317162526,
-      "duration": 4.749107038810091,
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-      "utterance_id": "6535-66371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-66371.flac |",
-      "real_speaker_id": "6535",
-      "position_frames": 83375
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.994044835321258,
-      "end_time": 26.58444137555485,
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-      "duration_frames": 57446,
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-      "utterance_id": "7688-109656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-109656.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.61123481482816,
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-      "overlap": false,
-      "utterance_id": "2299-6525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 97375
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_030909.json b/conversations/conv_030909.json
deleted file mode 100644
index 52d776636f4a8eb0437aa02bab80379ff1f0d58e..0000000000000000000000000000000000000000
--- a/conversations/conv_030909.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1815-9918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-9918.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123521.flac |",
-      "real_speaker_id": "91",
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-      "utterance_id": "6030-70988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-70988.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1815-143388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143388.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.657219640517354,
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-      "utterance_id": "91-123511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123511.flac |",
-      "real_speaker_id": "91",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.80247555270666,
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-      "utterance_id": "1815-143382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143382.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030913.json b/conversations/conv_030913.json
deleted file mode 100644
index a09378f6044c6eb584ae4a86dc4698bd100d4b62..0000000000000000000000000000000000000000
--- a/conversations/conv_030913.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "373-130977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130977.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.761509603980921,
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-      "duration_frames": 55039,
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-      "utterance_id": "5355-35477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-35477.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.920217350911232,
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-      "duration_frames": 66380,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130977.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 58690
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5355-10766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-10766.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "208-128036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-128036.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 93998,
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-      "utterance_id": "5355-35477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-35477.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 55039
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.864999598877922,
-      "end_time": 32.0,
-      "duration": 1.1350004011220776,
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-      "utterance_id": "208-126851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126851.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5355/laugh/0090.wav",
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-      "start_time": 8.251902310050061,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5355/cough/0130.wav",
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-      "start_time": 26.360168985494546,
-      "speaker_id": "5355"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030914.json b/conversations/conv_030914.json
deleted file mode 100644
index 1822ab5186b30d6b59e1138585feec66c46354fe..0000000000000000000000000000000000000000
--- a/conversations/conv_030914.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7191843040755588,
-      "duration": 3.7191843040755588,
-      "start_frame": 0,
-      "duration_frames": 59506,
-      "overlap": false,
-      "utterance_id": "5918-46890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.665343613893022,
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-      "overlap": false,
-      "utterance_id": "5918-46890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 59506
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
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-      "start_time": 17.3714560232587,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-49746.flac |",
-      "real_speaker_id": "4712",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 159813
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.0872743876383,
-      "end_time": 32.0,
-      "duration": 3.912725612361701,
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-      "utterance_id": "5918-46890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 229782
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "duration": 0.98,
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-      "speaker_id": "5918"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1280/laugh/0025.wav",
-      "duration": 0.8334896204000168,
-      "start_time": 16.345175019646238,
-      "speaker_id": "1280"
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-      "duration": 1.2,
-      "start_time": 27.31327544355564,
-      "speaker_id": "5918"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030925.json b/conversations/conv_030925.json
deleted file mode 100644
index cf7d2456e52262d2bf090469a01ad629e04bb6db..0000000000000000000000000000000000000000
--- a/conversations/conv_030925.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.80339526664094,
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-      "utterance_id": "7981-112061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
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-      "utterance_id": "5261-19373",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19373.flac |",
-      "real_speaker_id": "5261",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.20861324264982,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 104243
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.39559688769496,
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-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 97283
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.544101666463693,
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-      "utterance_id": "7981-112061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 152660
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "7981"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030929.json b/conversations/conv_030929.json
deleted file mode 100644
index 7b4bf3e03dc2146a55ec15fc995378bcd66675d4..0000000000000000000000000000000000000000
--- a/conversations/conv_030929.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64264.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122453.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-123059.flac |",
-      "real_speaker_id": "534",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
-      "real_speaker_id": "6689",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.343710416450357,
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-      "utterance_id": "534-127537",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127537.flac |",
-      "real_speaker_id": "534",
-      "position_frames": 0
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-      "real_speaker_id": "1878",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_030933.json b/conversations/conv_030933.json
deleted file mode 100644
index a065448b4df6ffe78dfb609d8a0eb20dfe72a78f..0000000000000000000000000000000000000000
--- a/conversations/conv_030933.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "7569-102232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274371.flac |",
-      "real_speaker_id": "8226",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "4411-14501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14501.flac |",
-      "real_speaker_id": "4411",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8226",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "7569-102232",
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-  "background_events": [
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_030938.json b/conversations/conv_030938.json
deleted file mode 100644
index 6577ab77e83df21a008465db73480c35ab4b3341..0000000000000000000000000000000000000000
--- a/conversations/conv_030938.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.554742330957858,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "3227-24788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24788.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.033813355430275,
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\ No newline at end of file
diff --git a/conversations/conv_030944.json b/conversations/conv_030944.json
deleted file mode 100644
index 371122909398042df69ed2f5847c78dccbc9a154..0000000000000000000000000000000000000000
--- a/conversations/conv_030944.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_030948.json b/conversations/conv_030948.json
deleted file mode 100644
index c015b1aba843ecab2fd6ae4c9b8208db9aa7636b..0000000000000000000000000000000000000000
--- a/conversations/conv_030948.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_030952.json b/conversations/conv_030952.json
deleted file mode 100644
index e632f84c47ffbffe356992158a6a788bce305bcd..0000000000000000000000000000000000000000
--- a/conversations/conv_030952.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1060/laugh/0048.wav",
-      "duration": 0.8179914009301812,
-      "start_time": 31.182008599069817,
-      "speaker_id": "1060"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030964.json b/conversations/conv_030964.json
deleted file mode 100644
index 4f3ba109b5ba19aa34e52d5e8de01ce02e2bdb8e..0000000000000000000000000000000000000000
--- a/conversations/conv_030964.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.73981395996032,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "4738-291957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-291957.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.2091149485502894,
-      "end_time": 9.955985843836842,
-      "duration": 5.746870895286552,
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-      "overlap": false,
-      "utterance_id": "4738-58078",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-58078.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.577272018506784,
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-      "utterance_id": "4738-58078",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-58078.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 91949
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131294.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.902780695356906,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131296.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.5163269275796,
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-      "duration_frames": 67575,
-      "overlap": true,
-      "utterance_id": "7384-84010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7384-84010.flac |",
-      "real_speaker_id": "7384",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
-      "duration": 12.759365079365079,
-      "start_time": 8.366054277409333
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-      "duration": 1.14,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2032933161455668,
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-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "7384"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7384/cough/0003.wav",
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-      "start_time": 26.31913366458431,
-      "speaker_id": "7384"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030968.json b/conversations/conv_030968.json
deleted file mode 100644
index eac14a64ef6c76ee756c5cbb7039364597186b09..0000000000000000000000000000000000000000
--- a/conversations/conv_030968.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "6035-58142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-58142.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.480743371999712,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39653.flac |",
-      "real_speaker_id": "6418",
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-      "overlap": true,
-      "utterance_id": "3894-6552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6552.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39654.flac |",
-      "real_speaker_id": "6418",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.37107426015062,
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-      "utterance_id": "6035-74040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-74040.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.24684658816203,
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-      "duration": 2.753153411837971,
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-      "utterance_id": "3894-6552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6552.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 109664
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
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-      "event_class": "laugh",
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-      "speaker_id": "3894"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030972.json b/conversations/conv_030972.json
deleted file mode 100644
index c03eaa43d9e760396d052df9f8e89066294cc3d5..0000000000000000000000000000000000000000
--- a/conversations/conv_030972.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.100283799007084,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-101864.flac |",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "real_speaker_id": "4680",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030979.json b/conversations/conv_030979.json
deleted file mode 100644
index e55f9de38ae6508d5695cb839842a3b4ec7d0aa8..0000000000000000000000000000000000000000
--- a/conversations/conv_030979.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.749504035930116,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.451895895640305,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/581-126955.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_030980.json b/conversations/conv_030980.json
deleted file mode 100644
index 305676bdb7c02b0ed57867317c25b2e2c0ece4a1..0000000000000000000000000000000000000000
--- a/conversations/conv_030980.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "1474",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128276.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1474-128276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128276.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 94740
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-  "background_events": [
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-      "event_class": "Running_water",
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-      "speaker_id": "1474"
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-}
\ No newline at end of file
diff --git a/conversations/conv_030987.json b/conversations/conv_030987.json
deleted file mode 100644
index c6e6b4a84e895a5ceab0c97e460e93ad4610f248..0000000000000000000000000000000000000000
--- a/conversations/conv_030987.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "584",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "584-124227",
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-      "real_speaker_id": "584",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_030991.json b/conversations/conv_030991.json
deleted file mode 100644
index cb9fd2a65a43ec17d7c9ee44b5eb92662cba2a42..0000000000000000000000000000000000000000
--- a/conversations/conv_030991.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_030996.json b/conversations/conv_030996.json
deleted file mode 100644
index adb2ebca1ca747783e6a27f7ef49663d4610780d..0000000000000000000000000000000000000000
--- a/conversations/conv_030996.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "6668-34612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34612.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6668",
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-      "segment_id": "seg0002",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152254.flac |",
-      "real_speaker_id": "2289",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152258.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 111120
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-      "event_class": "Blender",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6668/laugh/0034.wav",
-      "duration": 0.7349876473938175,
-      "start_time": 9.558527572540502,
-      "speaker_id": "6668"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031000.json b/conversations/conv_031000.json
deleted file mode 100644
index be5909b4f56291af79ee1034a4ff96330cd49bbc..0000000000000000000000000000000000000000
--- a/conversations/conv_031000.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.69123290650394,
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-      "utterance_id": "3906-23193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-23193.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.506165772786066,
-      "end_time": 9.344306033453364,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    },
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-      "utterance_id": "1347-135885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-135885.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 77410
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.222045181889975,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.69599883449946,
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-      "duration": 3.304001165500541,
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-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 147056
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_8.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "1347"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031007.json b/conversations/conv_031007.json
deleted file mode 100644
index 1923fe2b6c160eb3513bff1d24e4391020baaa49..0000000000000000000000000000000000000000
--- a/conversations/conv_031007.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.695010059968073,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1341-9206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
-      "real_speaker_id": "1341",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1708-142415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142415.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 85495,
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-      "utterance_id": "1341-9206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
-      "real_speaker_id": "1341",
-      "position_frames": 104868
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1708-142417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142417.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142415.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 94450
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-  "foreground_events": [
-    {
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1708/laugh/0080.wav",
-      "duration": 1.0558912805301022,
-      "start_time": 30.9441087194699,
-      "speaker_id": "1708"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031011.json b/conversations/conv_031011.json
deleted file mode 100644
index 019973c0274b25a0732b0e26902afea9f2263249..0000000000000000000000000000000000000000
--- a/conversations/conv_031011.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7912-105670.flac |",
-      "real_speaker_id": "7912",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7912-105670.flac |",
-      "real_speaker_id": "7912",
-      "position_frames": 87013
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.73190787548414,
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-      "duration_frames": 87292,
-      "overlap": false,
-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 173819
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7912-105670.flac |",
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-      "position_frames": 166819
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-  "background_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031016.json b/conversations/conv_031016.json
deleted file mode 100644
index 8703d7761becd1ea9098b5f4bf0d175ab903d628..0000000000000000000000000000000000000000
--- a/conversations/conv_031016.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.609207224998406,
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-      "duration_frames": 89747,
-      "overlap": false,
-      "utterance_id": "505-125274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125274.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.100217049183412,
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-      "real_speaker_id": "1098",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8057-271826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-271826.flac |",
-      "real_speaker_id": "8057",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125272.flac |",
-      "real_speaker_id": "505",
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-    {
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-      "real_speaker_id": "8057",
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\ No newline at end of file
diff --git a/conversations/conv_031027.json b/conversations/conv_031027.json
deleted file mode 100644
index f7dd70c957019c0642ca228d9f67db0f17904ef3..0000000000000000000000000000000000000000
--- a/conversations/conv_031027.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.71367173952786,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-121727.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123215.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.71117664068923,
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-      "utterance_id": "112-123216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123216.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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\ No newline at end of file
diff --git a/conversations/conv_031031.json b/conversations/conv_031031.json
deleted file mode 100644
index 80f8653eb8d6594aa421a10d604c8b509c946a31..0000000000000000000000000000000000000000
--- a/conversations/conv_031031.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.921609114621027,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-39940.flac |",
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-      "real_speaker_id": "2960",
-      "position_frames": 68761
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "5545",
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031041.json b/conversations/conv_031041.json
deleted file mode 100644
index be182edcac6c3ebac6ea2af49bc9b4fda4b3d309..0000000000000000000000000000000000000000
--- a/conversations/conv_031041.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.932503869735726,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "8631-281208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-281208.flac |",
-      "real_speaker_id": "8631",
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-    {
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-      "position_frames": 0
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-    {
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/451/cough/0101.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031046.json b/conversations/conv_031046.json
deleted file mode 100644
index 11bbc8c5ec7240384d3bea24225a9f5f24089c12..0000000000000000000000000000000000000000
--- a/conversations/conv_031046.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_031050.json b/conversations/conv_031050.json
deleted file mode 100644
index a375f465a9e9b377912791fb2988d4156aaba303..0000000000000000000000000000000000000000
--- a/conversations/conv_031050.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.82646088475046,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_031051.json b/conversations/conv_031051.json
deleted file mode 100644
index 2632da7a9ac2a83fd8dfd91c54cbea8e02b99a5d..0000000000000000000000000000000000000000
--- a/conversations/conv_031051.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_031057.json b/conversations/conv_031057.json
deleted file mode 100644
index b9edcde13d9d8cd489819771f24fac512cc93976..0000000000000000000000000000000000000000
--- a/conversations/conv_031057.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_031066.json b/conversations/conv_031066.json
deleted file mode 100644
index 2d27be8e6563557f0de3229424e9745e1a926e70..0000000000000000000000000000000000000000
--- a/conversations/conv_031066.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 141397
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.375016924190852,
-      "end_time": 31.739869322872302,
-      "duration": 5.3648523986814505,
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-      "utterance_id": "6368-230929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-230929.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "Dishes",
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-      "speaker_id": "3230"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 19.47792539524386,
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-      "start_time": 19.79219433444367,
-      "speaker_id": "3230"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031070.json b/conversations/conv_031070.json
deleted file mode 100644
index 4b885532521dc4c496ef5bc6e0337a44873e6d03..0000000000000000000000000000000000000000
--- a/conversations/conv_031070.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3433-135988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-135988.flac |",
-      "real_speaker_id": "3433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.303813997823488,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-718.flac |",
-      "real_speaker_id": "3433",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 119068
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_031085.json b/conversations/conv_031085.json
deleted file mode 100644
index e388feeab9cf5130149195119cfc2c709d59cbc9..0000000000000000000000000000000000000000
--- a/conversations/conv_031085.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-80197.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129796.flac |",
-      "real_speaker_id": "557",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129796.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 60451
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 20.35589600510745,
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-      "utterance_id": "6519-231834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-231834.flac |",
-      "real_speaker_id": "6519",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "557-129797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129797.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 29.938610295917222,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/557/cough/0080.wav",
-      "duration": 1.2,
-      "start_time": 25.81136515109022,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031089.json b/conversations/conv_031089.json
deleted file mode 100644
index 5e7badb589043222a6ba6874c1c371cac3877d40..0000000000000000000000000000000000000000
--- a/conversations/conv_031089.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7816-108620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108620.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.182186064085064,
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-      "utterance_id": "5375-40170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40170.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40170.flac |",
-      "real_speaker_id": "5375",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "7816",
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-    },
-    {
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-      "position_frames": 144563
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2785-163322",
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-      "real_speaker_id": "2785",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031092.json b/conversations/conv_031092.json
deleted file mode 100644
index 0d797a901e6fcb05d0fa2f46afad7edfbc20b1f5..0000000000000000000000000000000000000000
--- a/conversations/conv_031092.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.626025756202463,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7482518116188768,
-      "duration": 3.7482518116188768,
-      "start_frame": 0,
-      "duration_frames": 59972,
-      "overlap": false,
-      "utterance_id": "1222-141174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-141174.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.672628573745689,
-      "end_time": 11.080016103838652,
-      "duration": 6.407387530092962,
-      "start_frame": 74762,
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-      "overlap": false,
-      "utterance_id": "1052-132776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1052-132776.flac |",
-      "real_speaker_id": "1052",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.159829121300941,
-      "end_time": 17.196924715547908,
-      "duration": 5.037095594246969,
-      "start_frame": 194557,
-      "duration_frames": 80593,
-      "overlap": false,
-      "utterance_id": "1222-133834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.37503150621757,
-      "end_time": 25.289301580814698,
-      "duration": 6.914270074597127,
-      "start_frame": 294000,
-      "duration_frames": 110628,
-      "overlap": false,
-      "utterance_id": "1052-132776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1052-132776.flac |",
-      "real_speaker_id": "1052",
-      "position_frames": 102518
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.625301139491707,
-      "end_time": 31.626025756202463,
-      "duration": 6.000724616710755,
-      "start_frame": 410004,
-      "duration_frames": 96011,
-      "overlap": false,
-      "utterance_id": "1222-133834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 80593
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 23.123673469387754,
-      "start_time": 5.454054441649749
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 10.506005508130018,
-      "speaker_id": "1222"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1222/laugh/0026.wav",
-      "duration": 0.82,
-      "start_time": 29.08778980630834,
-      "speaker_id": "1222"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1222/cough/0021.wav",
-      "duration": 0.93765759724592,
-      "start_time": 31.06234240275408,
-      "speaker_id": "1222"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031093.json b/conversations/conv_031093.json
deleted file mode 100644
index a758d396ce486156dfed8d7f0dd2553cffdc58f9..0000000000000000000000000000000000000000
--- a/conversations/conv_031093.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8771-294523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134208.flac |",
-      "real_speaker_id": "466",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134185.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "6777-76701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76701.flac |",
-      "real_speaker_id": "6777",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8771-294523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
-      "position_frames": 51669
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.738174454976793,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134208.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 94075
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.60520550435143,
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-      "real_speaker_id": "466",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_031103.json b/conversations/conv_031103.json
deleted file mode 100644
index 25d76f5fa28073d5db5d2ecc164bd5cb2f029354..0000000000000000000000000000000000000000
--- a/conversations/conv_031103.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1298-142236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-142236.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
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-      "real_speaker_id": "100",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1878",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_031104.json b/conversations/conv_031104.json
deleted file mode 100644
index 09200ca5c27350842562ded54aae6c19d70ba555..0000000000000000000000000000000000000000
--- a/conversations/conv_031104.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105171.flac |",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7113/laugh/0029.wav",
-      "duration": 0.7849346867659717,
-      "start_time": 21.390045161263,
-      "speaker_id": "7113"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7113/cough/0013.wav",
-      "duration": 0.3320788749747743,
-      "start_time": 16.74422950686951,
-      "speaker_id": "7113"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7354/laugh/0099.wav",
-      "duration": 1.48,
-      "start_time": 25.27793083317675,
-      "speaker_id": "7354"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7113/cough/0099.wav",
-      "duration": 0.8435772671369794,
-      "start_time": 28.949669680185103,
-      "speaker_id": "7113"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031112.json b/conversations/conv_031112.json
deleted file mode 100644
index 10f4b1b6ee118d110a71067cca4a29b46a04d3cc..0000000000000000000000000000000000000000
--- a/conversations/conv_031112.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.702795141265703,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.653596202583718,
-      "duration": 5.653596202583718,
-      "start_frame": 0,
-      "duration_frames": 90457,
-      "overlap": false,
-      "utterance_id": "1509-145699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1509-145699.flac |",
-      "real_speaker_id": "1509",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.339464445547525,
-      "end_time": 9.391499648302318,
-      "duration": 4.052035202754794,
-      "start_frame": 85431,
-      "duration_frames": 64832,
-      "overlap": true,
-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.282168234663583,
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-      "duration": 5.196984595870052,
-      "start_frame": 164514,
-      "duration_frames": 83151,
-      "overlap": false,
-      "utterance_id": "6689-64286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
-      "real_speaker_id": "6689",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.137569874736453,
-      "end_time": 20.63447776465965,
-      "duration": 4.496907889923195,
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-      "overlap": false,
-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 64832
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.34322085142915,
-      "end_time": 25.20059796113238,
-      "duration": 3.8573771097032283,
-      "start_frame": 341491,
-      "duration_frames": 61718,
-      "overlap": false,
-      "utterance_id": "1509-143477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1509-143477.flac |",
-      "real_speaker_id": "1509",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.18895753529579,
-      "end_time": 30.652473088834853,
-      "duration": 4.4635155535390645,
-      "start_frame": 419023,
-      "duration_frames": 71416,
-      "overlap": false,
-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 136782
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.76626964768377,
-      "end_time": 31.702795141265703,
-      "duration": 0.9365254935819323,
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-      "duration_frames": 14984,
-      "overlap": true,
-      "utterance_id": "6689-64286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
-      "real_speaker_id": "6689",
-      "position_frames": 83151
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
-      "duration": 2.6821762563223,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
-      "duration": 0.6236734693877551,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6689/cough/0073.wav",
-      "duration": 0.724693356344452,
-      "start_time": 15.497158181593866,
-      "speaker_id": "6689"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8867/laugh/0004.wav",
-      "duration": 0.8846800960668164,
-      "start_time": 27.737685925438576,
-      "speaker_id": "8867"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8867/cough/0001.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "8867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031114.json b/conversations/conv_031114.json
deleted file mode 100644
index cd42917ea9a4fc6d7e7edbe5cc4a3ba3e661a0d5..0000000000000000000000000000000000000000
--- a/conversations/conv_031114.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7434-96672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.365786623389242,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-287139.flac |",
-      "real_speaker_id": "204",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.385027530843471,
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-      "duration_frames": 90517,
-      "overlap": true,
-      "utterance_id": "7434-75939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-75939.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.653434720857895,
-      "end_time": 23.2758150942967,
-      "duration": 4.622380373438806,
-      "start_frame": 298454,
-      "duration_frames": 73958,
-      "overlap": false,
-      "utterance_id": "204-287139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-287139.flac |",
-      "real_speaker_id": "204",
-      "position_frames": 86810
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.481948933123974,
-      "end_time": 27.142584481889894,
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-      "duration_frames": 58570,
-      "overlap": false,
-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.843678995061598,
-      "end_time": 32.0,
-      "duration": 4.156321004938402,
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-      "duration_frames": 66501,
-      "overlap": false,
-      "utterance_id": "7434-75939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-75939.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 90517
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7434/laugh/0052.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "7434"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031115.json b/conversations/conv_031115.json
deleted file mode 100644
index 995ce3e048c758faccf9a3830aea228028573909..0000000000000000000000000000000000000000
--- a/conversations/conv_031115.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.98451704329746,
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-      "overlap": false,
-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.140676723714996,
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-      "utterance_id": "6956-81870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6956-81870.flac |",
-      "real_speaker_id": "6956",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.091999897976837,
-      "end_time": 16.661647909834592,
-      "duration": 5.5696480118577565,
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-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 79752
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
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-      "position_frames": 168866
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.268958109133404,
-      "end_time": 28.587918412059715,
-      "duration": 3.3189603029263086,
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-      "duration_frames": 53103,
-      "overlap": false,
-      "utterance_id": "6956-76046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6956-76046.flac |",
-      "real_speaker_id": "6956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.842367409324115,
-      "end_time": 32.0,
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-      "utterance_id": "6051-54421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6051-54421.flac |",
-      "real_speaker_id": "6051",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031119.json b/conversations/conv_031119.json
deleted file mode 100644
index f23d988bd35f4775b5caa7a1869efedd58e69d1c..0000000000000000000000000000000000000000
--- a/conversations/conv_031119.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 5.927151761337141,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2240-148529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148529.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.291201092031729,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.88519988822444,
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-      "utterance_id": "2240-148529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148529.flac |",
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-      "position_frames": 94834
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-    {
-      "segment_id": "seg0003",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_17.wav",
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-      "event_class": "Cat",
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-      "event_class": "laugh",
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-      "speaker_id": "4846"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031123.json b/conversations/conv_031123.json
deleted file mode 100644
index 3342516da642cd051bd0f42e833a47a9b59d0552..0000000000000000000000000000000000000000
--- a/conversations/conv_031123.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4754462318624624,
-      "duration": 3.4754462318624624,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1132-145024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-145024.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.452247686643762,
-      "end_time": 8.146468528454852,
-      "duration": 3.69422084181109,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128991.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.64066237161852,
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-      "overlap": false,
-      "utterance_id": "1132-138883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-138883.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.00446682212774,
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-      "utterance_id": "663-128990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 59107
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.250456192972944,
-      "end_time": 29.23562077928264,
-      "duration": 5.985164586309695,
-      "start_frame": 372007,
-      "duration_frames": 95762,
-      "overlap": false,
-      "utterance_id": "663-128991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128991.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 57267
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.350409854775954,
-      "end_time": 32.0,
-      "duration": 1.649590145224046,
-      "start_frame": 485606,
-      "duration_frames": 26393,
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-      "utterance_id": "663-128990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 131826
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_14.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/663/laugh/0096.wav",
-      "duration": 1.36,
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-      "speaker_id": "663"
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-    {
-      "event_class": "cough",
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-      "duration": 1.1,
-      "start_time": 30.852198055090017,
-      "speaker_id": "663"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031135.json b/conversations/conv_031135.json
deleted file mode 100644
index 04ca11dc5c58bb73ffe3a738a86a664d7b39a221..0000000000000000000000000000000000000000
--- a/conversations/conv_031135.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3982-182255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-182255.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.696525254255207,
-      "end_time": 10.818429274618994,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56178.flac |",
-      "real_speaker_id": "6102",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-178459.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.916850253806203,
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-      "duration": 6.333477410772562,
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-      "duration_frames": 101335,
-      "overlap": false,
-      "utterance_id": "6102-56178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56178.flac |",
-      "real_speaker_id": "6102",
-      "position_frames": 65950
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.90520714497837,
-      "end_time": 28.474378047381197,
-      "duration": 4.569170902402827,
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-      "duration_frames": 73106,
-      "overlap": false,
-      "utterance_id": "637-127595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.143051627525868,
-      "end_time": 32.0,
-      "duration": 2.8569483724741325,
-      "start_frame": 466288,
-      "duration_frames": 45711,
-      "overlap": false,
-      "utterance_id": "3982-178459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-178459.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 79366
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6102/cough/0103.wav",
-      "duration": 1.241985590308175,
-      "start_time": 17.359249676340095,
-      "speaker_id": "6102"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/637/laugh/0092.wav",
-      "duration": 1.0256610078736128,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3982/cough/0018.wav",
-      "duration": 1.4546903771492652,
-      "start_time": 30.545309622850734,
-      "speaker_id": "3982"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031138.json b/conversations/conv_031138.json
deleted file mode 100644
index da43ddf2fbcbd191bb69eecfd89dfb6f8a279bba..0000000000000000000000000000000000000000
--- a/conversations/conv_031138.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 65717,
-      "overlap": false,
-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.103904553720038,
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-      "overlap": false,
-      "utterance_id": "8803-296085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296085.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.081472439461503,
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-      "utterance_id": "8803-296082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296082.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 83209
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.623429920343014,
-      "end_time": 32.0,
-      "duration": 4.376570079656986,
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-      "duration_frames": 70025,
-      "overlap": false,
-      "utterance_id": "8803-296082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296082.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 65262
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/laugh/0113.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8803/laugh/0000.wav",
-      "duration": 1.040922061876435,
-      "start_time": 22.20426548808505,
-      "speaker_id": "8803"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1001/laugh/0051.wav",
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-      "start_time": 27.122405231627454,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8803/laugh/0048.wav",
-      "duration": 0.641498413515238,
-      "start_time": 29.688843962993463,
-      "speaker_id": "8803"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031139.json b/conversations/conv_031139.json
deleted file mode 100644
index 32b4c964ae491d82bf50b7b009d6bd09432c6919..0000000000000000000000000000000000000000
--- a/conversations/conv_031139.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 4.276606409456012,
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-      "utterance_id": "3630-11612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-11612.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.665207598071125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-100165.flac |",
-      "real_speaker_id": "4697",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-24758.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_031142.json b/conversations/conv_031142.json
deleted file mode 100644
index af7026998585b0662c4b2c28d4f97bd2f932fde1..0000000000000000000000000000000000000000
--- a/conversations/conv_031142.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.69863120631042,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128245.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-136524.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.852878303894524,
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-      "utterance_id": "3054-128242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-14187.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 27.64786727869192,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_031145.json b/conversations/conv_031145.json
deleted file mode 100644
index 498bac432a5ba796935b3c34f23b1a90ac304f91..0000000000000000000000000000000000000000
--- a/conversations/conv_031145.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84448.flac |",
-      "real_speaker_id": "1638",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6746-72302.flac |",
-      "real_speaker_id": "6746",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "4592-22178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22178.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031153.json b/conversations/conv_031153.json
deleted file mode 100644
index cbbda420d19ab4721f3b2d930aac19b905a8b0d9..0000000000000000000000000000000000000000
--- a/conversations/conv_031153.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.31209964441765,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "3990-13164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-13164.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "6341",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5545-66419",
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-      "real_speaker_id": "5545",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.061240638144117,
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-  "foreground_events": [
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-    {
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-      "start_time": 31.376222692791462,
-      "speaker_id": "6341"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031154.json b/conversations/conv_031154.json
deleted file mode 100644
index fa0c471a2e84b7ec0e58c483f9627e36ee9fd65f..0000000000000000000000000000000000000000
--- a/conversations/conv_031154.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_031158.json b/conversations/conv_031158.json
deleted file mode 100644
index 5478c8b8f98beea109f8195d4b04a72a3097db8b..0000000000000000000000000000000000000000
--- a/conversations/conv_031158.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-8684.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_031162.json b/conversations/conv_031162.json
deleted file mode 100644
index e5533931dada752279c62dcb033c6dfa6206e05d..0000000000000000000000000000000000000000
--- a/conversations/conv_031162.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_031174.json b/conversations/conv_031174.json
deleted file mode 100644
index e11c9ee1728b72c340aeca30c1aec5a81b2a03e3..0000000000000000000000000000000000000000
--- a/conversations/conv_031174.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.11715304278501,
-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_031178.json b/conversations/conv_031178.json
deleted file mode 100644
index ced01853e08c125cc4476c80f53a0c92e7b99f12..0000000000000000000000000000000000000000
--- a/conversations/conv_031178.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_031180.json b/conversations/conv_031180.json
deleted file mode 100644
index 7ae9d049ca276b7a29ffcc862ca2aa6a2acc9427..0000000000000000000000000000000000000000
--- a/conversations/conv_031180.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_031181.json b/conversations/conv_031181.json
deleted file mode 100644
index ca14050c7196a6b539cad9715fbb6de68e75c3ba..0000000000000000000000000000000000000000
--- a/conversations/conv_031181.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_031197.json b/conversations/conv_031197.json
deleted file mode 100644
index 073f4b649f3b1b240eb20d426ef60f673fdc849a..0000000000000000000000000000000000000000
--- a/conversations/conv_031197.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.382075993038693,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_031206.json b/conversations/conv_031206.json
deleted file mode 100644
index 3474bfba8eedf8897aa554c194104f744444dbbd..0000000000000000000000000000000000000000
--- a/conversations/conv_031206.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_031210.json b/conversations/conv_031210.json
deleted file mode 100644
index a846e364ca93b68ff512b8269d987f60b818b7a4..0000000000000000000000000000000000000000
--- a/conversations/conv_031210.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.90813896878201,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 3.4376105954703684,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5886-27508.flac |",
-      "real_speaker_id": "5886",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-5710.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-5710.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 101001
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031226.json b/conversations/conv_031226.json
deleted file mode 100644
index 1c84f6475488e37abe07af0825658c63526990ed..0000000000000000000000000000000000000000
--- a/conversations/conv_031226.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7632.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "4235-7632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7632.flac |",
-      "real_speaker_id": "4235",
-      "position_frames": 85800
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "899",
-      "position_frames": 59210
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-      "real_speaker_id": "7331",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031230.json b/conversations/conv_031230.json
deleted file mode 100644
index ac660cdefb0c1c76747dcf6ff4b681afa0ee4af6..0000000000000000000000000000000000000000
--- a/conversations/conv_031230.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7923-111569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111569.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
-      "real_speaker_id": "667",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5147-32137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32137.flac |",
-      "real_speaker_id": "5147",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7923",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7923-111564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111564.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031246.json b/conversations/conv_031246.json
deleted file mode 100644
index 6b002f450125bbf8a120e7b67d889b5a1a6ac035..0000000000000000000000000000000000000000
--- a/conversations/conv_031246.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.881368166907727,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-258283.flac |",
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-  "background_events": [
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031247.json b/conversations/conv_031247.json
deleted file mode 100644
index 3db0b3dfb28a7bb3b0e54ac70e93ba645168c7ea..0000000000000000000000000000000000000000
--- a/conversations/conv_031247.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3125-163698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-163698.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_031251.json b/conversations/conv_031251.json
deleted file mode 100644
index 7f1eb7e849028017dce31bdacabd92d9fd5c805e..0000000000000000000000000000000000000000
--- a/conversations/conv_031251.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_031256.json b/conversations/conv_031256.json
deleted file mode 100644
index 449af564df81f3ae9a4dbdd25fbf647a0f37bf4e..0000000000000000000000000000000000000000
--- a/conversations/conv_031256.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43315.flac |",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4773/laugh/0107.wav",
-      "duration": 0.542933863425906,
-      "start_time": 19.556358771479605,
-      "speaker_id": "4773"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1495/laugh/0036.wav",
-      "duration": 1.1715923136644184,
-      "start_time": 18.19676453234302,
-      "speaker_id": "1495"
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-    {
-      "event_class": "cough",
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-      "duration": 0.4109729593809665,
-      "start_time": 30.60973031545835,
-      "speaker_id": "5772"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031267.json b/conversations/conv_031267.json
deleted file mode 100644
index d7b4f4b66f7d9f539ff40dd77b66a545db2bcbe3..0000000000000000000000000000000000000000
--- a/conversations/conv_031267.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.354398870360122,
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-      "overlap": false,
-      "utterance_id": "5671-50453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50453.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.560230502012715,
-      "end_time": 10.364857694599209,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
-      "real_speaker_id": "4958",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.906330900253975,
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-      "utterance_id": "5671-50486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50486.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.85920732024633,
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-      "utterance_id": "2562-133442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2562-133442.flac |",
-      "real_speaker_id": "2562",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.770692320997586,
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-      "duration": 4.021018572249727,
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-      "duration_frames": 64336,
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-      "utterance_id": "5671-24628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-24628.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.048164398533956,
-      "end_time": 28.772611719999006,
-      "duration": 3.7244473214650506,
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-      "duration_frames": 59591,
-      "overlap": false,
-      "utterance_id": "4958-11613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
-      "real_speaker_id": "4958",
-      "position_frames": 76874
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.757659723479613,
-      "end_time": 32.0,
-      "duration": 2.2423402765203875,
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-      "utterance_id": "5671-50454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2562/laugh/0059.wav",
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-      "start_time": 14.54945536877557,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2562/cough/0101.wav",
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-      "start_time": 18.41828345492309,
-      "speaker_id": "2562"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031271.json b/conversations/conv_031271.json
deleted file mode 100644
index 34bf324de279d368aa51b3b1e091761f690a5af2..0000000000000000000000000000000000000000
--- a/conversations/conv_031271.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6352-88007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6352-88007.flac |",
-      "real_speaker_id": "6352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.173854731846366,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6352-88007.flac |",
-      "real_speaker_id": "6352",
-      "position_frames": 70542
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.005599759509474,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6352-88007.flac |",
-      "real_speaker_id": "6352",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "323-126408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 50092
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6352-83633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6352-83633.flac |",
-      "real_speaker_id": "6352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.97602329248284,
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-      "duration": 3.0239767075171606,
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-      "duration_frames": 48383,
-      "overlap": false,
-      "utterance_id": "323-126408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 142697
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6352/laugh/0069.wav",
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-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/323/cough/0011.wav",
-      "duration": 0.9296076467511276,
-      "start_time": 21.480555719084904,
-      "speaker_id": "323"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031283.json b/conversations/conv_031283.json
deleted file mode 100644
index 6ebed2e19134d3045732752266dabc95b6678c98..0000000000000000000000000000000000000000
--- a/conversations/conv_031283.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2152-133013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-133013.flac |",
-      "real_speaker_id": "2152",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-28384.flac |",
-      "real_speaker_id": "5386",
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-    {
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-      "utterance_id": "2152-156226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-156226.flac |",
-      "real_speaker_id": "2152",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48361.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.510185289604628,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-156226.flac |",
-      "real_speaker_id": "2152",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5746-48362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031284.json b/conversations/conv_031284.json
deleted file mode 100644
index 7f8c58f8288b21040025832629282b34f26cd87e..0000000000000000000000000000000000000000
--- a/conversations/conv_031284.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.684233676899254,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
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-    {
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128991.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
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-      "start_time": 26.443828081323772,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 137466
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_16.wav",
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-      "event_class": "Frying",
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-      "duration": 1.16,
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-      "speaker_id": "3221"
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-      "event_class": "cough",
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-      "speaker_id": "3221"
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/448/laugh/0116.wav",
-      "duration": 0.72,
-      "start_time": 15.329125217379513,
-      "speaker_id": "448"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.2133322379746905,
-      "start_time": 26.203693162812105,
-      "speaker_id": "663"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3221/laugh/0086.wav",
-      "duration": 1.08,
-      "start_time": 25.190286285922888,
-      "speaker_id": "3221"
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 25.26610800091642,
-      "speaker_id": "3221"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031288.json b/conversations/conv_031288.json
deleted file mode 100644
index 6c4969e460b2c76db1164bc46c9e4b3ac17606ac..0000000000000000000000000000000000000000
--- a/conversations/conv_031288.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7376-92940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-92940.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.7740841642129626,
-      "end_time": 9.794427442870298,
-      "duration": 4.020343278657336,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-284436.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.132504717720458,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4654.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "8447-285242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-285242.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "7376-96150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.540507897467382,
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-      "start_frame": 424648,
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-      "utterance_id": "8447-284448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-284448.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.709700566138356,
-      "end_time": 32.0,
-      "duration": 1.2902994338616445,
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-      "overlap": false,
-      "utterance_id": "7376-64577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-64577.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "speaker_id": "8447"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.1,
-      "start_time": 16.392062030166393,
-      "speaker_id": "2598"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7376/laugh/0019.wav",
-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "7376"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031292.json b/conversations/conv_031292.json
deleted file mode 100644
index 46ac83465da50ab7c34241b7be1d3c2b78d3bcdf..0000000000000000000000000000000000000000
--- a/conversations/conv_031292.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.641308787036326,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1230-139216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139216.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.5046646750056585,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.316735817310324,
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-      "overlap": false,
-      "utterance_id": "8005-113328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113328.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.29099673538624,
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-      "utterance_id": "1230-1068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-1068.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.228210128622635,
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-      "duration": 3.8177893131675162,
-      "start_frame": 339651,
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-      "utterance_id": "8005-113330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113330.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 54487,
-      "overlap": false,
-      "utterance_id": "1230-139216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139216.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 79954
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.095109110089982,
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-      "duration": 2.546199676946344,
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-      "duration_frames": 40739,
-      "overlap": true,
-      "utterance_id": "8005-113329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113329.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1230/laugh/0012.wav",
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-    {
-      "event_class": "cough",
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-      "start_time": 21.065545066399217,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8005/laugh/0045.wav",
-      "duration": 1.48,
-      "start_time": 25.249261848547086,
-      "speaker_id": "8005"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1230/laugh/0160.wav",
-      "duration": 1.1658998580109117,
-      "start_time": 29.06788147222734,
-      "speaker_id": "1230"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031295.json b/conversations/conv_031295.json
deleted file mode 100644
index 058711dd1336881225c5dbb9c34b515518b8bdb1..0000000000000000000000000000000000000000
--- a/conversations/conv_031295.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4640-19189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19189.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 6.480015915993457,
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-      "overlap": false,
-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19188.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.295995267640077,
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-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 85533
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.431361170249627,
-      "end_time": 29.381823546046554,
-      "duration": 6.950462375796928,
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-      "duration_frames": 111207,
-      "overlap": true,
-      "utterance_id": "168-129245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-129245.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.461809529697852,
-      "end_time": 32.0,
-      "duration": 1.5381904703021476,
-      "start_frame": 487388,
-      "duration_frames": 24611,
-      "overlap": false,
-      "utterance_id": "4640-19189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19189.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 101541
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
-      "duration": 13.7083399856863,
-      "start_time": 18.257401295265762
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
-      "duration": 0.6206349206349207,
-      "start_time": 24.61998453565893
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/118/cough/0124.wav",
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-      "start_time": 6.684090364877685,
-      "speaker_id": "118"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031302.json b/conversations/conv_031302.json
deleted file mode 100644
index b4ca80abbc0a218a076f587fc0e4d56d4af4f60f..0000000000000000000000000000000000000000
--- a/conversations/conv_031302.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_031303.json b/conversations/conv_031303.json
deleted file mode 100644
index f7883e8a3beedf0b0a7c538835488f3574d44fc6..0000000000000000000000000000000000000000
--- a/conversations/conv_031303.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-140055.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_031313.json b/conversations/conv_031313.json
deleted file mode 100644
index 977cad15189fd2f4eec632a84185f8db3e144970..0000000000000000000000000000000000000000
--- a/conversations/conv_031313.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
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\ No newline at end of file
diff --git a/conversations/conv_031314.json b/conversations/conv_031314.json
deleted file mode 100644
index ceaf9bb97f2807c1b4e80ce6ee48c16545df1891..0000000000000000000000000000000000000000
--- a/conversations/conv_031314.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "start_time": 0.03898887702693017,
-      "speaker_id": "1061"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/32/cough/0044.wav",
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-      "start_time": 19.48456162812302,
-      "speaker_id": "32"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031318.json b/conversations/conv_031318.json
deleted file mode 100644
index f545c0ffe04bacf3d7c1dad96a2b07621e00fd28..0000000000000000000000000000000000000000
--- a/conversations/conv_031318.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.140008845795797,
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-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.583880251564332,
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-      "duration": 3.227844368204463,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 82240
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7255-281345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-281345.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.360733791820778,
-      "end_time": 20.690144476230206,
-      "duration": 5.329410684409429,
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-      "overlap": false,
-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 133885
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.66848572172953,
-      "end_time": 27.661231009337424,
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-      "overlap": false,
-      "utterance_id": "7255-291500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-291500.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.76165088397883,
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-      "duration": 3.238349116021169,
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-      "utterance_id": "4313-16007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-16007.flac |",
-      "real_speaker_id": "4313",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-      "event_class": "cough",
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-      "duration": 0.3084804287567646,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 30.44485822416007,
-      "speaker_id": "4313"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031322.json b/conversations/conv_031322.json
deleted file mode 100644
index c0253ac13485baaa12264b957f49e040e07615ad..0000000000000000000000000000000000000000
--- a/conversations/conv_031322.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2568-156117",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156117.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-57188.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3820.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.815871800120895,
-      "end_time": 19.917493951741516,
-      "duration": 3.10162215162062,
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-      "overlap": true,
-      "utterance_id": "2568-156118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156118.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.39847229064352,
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-      "utterance_id": "2568-156116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156116.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.795905006675223,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-57188.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 89639
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "duration": 1.0,
-      "start_time": 17.08989644211987,
-      "speaker_id": "4211"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031329.json b/conversations/conv_031329.json
deleted file mode 100644
index 19de131bcdf635c682b9147296d7996a9243ffbc..0000000000000000000000000000000000000000
--- a/conversations/conv_031329.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "681-152975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-152975.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8705-290363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
-      "real_speaker_id": "8705",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-152975.flac |",
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-      "segment_id": "seg0003",
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-      "position_frames": 93968
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
-    {
-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_031334.json b/conversations/conv_031334.json
deleted file mode 100644
index 06ab5b6a2a8b22b99afa539929677e5e0ad21a6f..0000000000000000000000000000000000000000
--- a/conversations/conv_031334.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6924-291608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-291608.flac |",
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-      "speaker_id": "1746"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6924/laugh/0093.wav",
-      "duration": 1.2418679872599183,
-      "start_time": 30.56965219938008,
-      "speaker_id": "6924"
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-    {
-      "event_class": "cough",
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-      "duration": 0.46166412592456707,
-      "start_time": 28.54386684233614,
-      "speaker_id": "6924"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031338.json b/conversations/conv_031338.json
deleted file mode 100644
index e2e9a4e38b9abe7d4916eda975384ad03c48e35e..0000000000000000000000000000000000000000
--- a/conversations/conv_031338.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.171552753933756,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.348551965669709,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-55218.flac |",
-      "real_speaker_id": "177",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 72045
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.881701031051023,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.566255100798017,
-      "end_time": 30.490025158714953,
-      "duration": 3.9237700579169372,
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-      "duration_frames": 62780,
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-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 168818
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.22336668459515,
-      "end_time": 31.171552753933756,
-      "duration": 0.9481860693386075,
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-      "duration_frames": 15170,
-      "overlap": true,
-      "utterance_id": "177-122839",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-122839.flac |",
-      "real_speaker_id": "177",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "986"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031343.json b/conversations/conv_031343.json
deleted file mode 100644
index d465a35c3e2236d66b950e819e3fd664e235d766..0000000000000000000000000000000000000000
--- a/conversations/conv_031343.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.666387158338946,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1316-132800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132800.flac |",
-      "real_speaker_id": "1316",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.686233972070556,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132800.flac |",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31625.flac |",
-      "real_speaker_id": "5439",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1316-132782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132782.flac |",
-      "real_speaker_id": "1316",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.276986657122066,
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-      "overlap": false,
-      "utterance_id": "3465-20022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3465-20022.flac |",
-      "real_speaker_id": "3465",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.150556811538276,
-      "end_time": 31.666387158338946,
-      "duration": 4.515830346800669,
-      "start_frame": 434408,
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-      "utterance_id": "1316-132800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132800.flac |",
-      "real_speaker_id": "1316",
-      "position_frames": 160315
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_4.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1316/laugh/0081.wav",
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-      "speaker_id": "1316"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1316/laugh/0011.wav",
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-      "speaker_id": "1316"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031354.json b/conversations/conv_031354.json
deleted file mode 100644
index c21025f91165e192b76be5ec1386c8b1eded65dc..0000000000000000000000000000000000000000
--- a/conversations/conv_031354.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "85-121551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
-      "real_speaker_id": "85",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
-      "real_speaker_id": "85",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.027739264323163,
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-      "utterance_id": "2817-142371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 88639
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
-      "real_speaker_id": "85",
-      "position_frames": 123808
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.250903984149154,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 152771
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/85/laugh/0035.wav",
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-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/85/laugh/0106.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031355.json b/conversations/conv_031355.json
deleted file mode 100644
index a6f4f30d19d17970d2626fd1f5daa4c3ab414122..0000000000000000000000000000000000000000
--- a/conversations/conv_031355.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-169435.flac |",
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-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 155164
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
-      "duration": 0.254421768707483,
-      "start_time": 29.005475015832634
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
-      "duration": 0.6683219954648526,
-      "start_time": 21.42251936379859
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1878/cough/0062.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "1878"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2021/cough/0011.wav",
-      "duration": 1.32,
-      "start_time": 25.952589825050932,
-      "speaker_id": "2021"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031359.json b/conversations/conv_031359.json
deleted file mode 100644
index b676a498074c0da8e512277546da701bf149991a..0000000000000000000000000000000000000000
--- a/conversations/conv_031359.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.755627124320604,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.536284649723482,
-      "duration": 6.536284649723482,
-      "start_frame": 0,
-      "duration_frames": 104580,
-      "overlap": false,
-      "utterance_id": "3723-171631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171631.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.9696365259426765,
-      "end_time": 11.239177538253085,
-      "duration": 4.269541012310408,
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-      "overlap": false,
-      "utterance_id": "6119-48032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6119-48032.flac |",
-      "real_speaker_id": "6119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.414131198671049,
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-      "duration_frames": 63948,
-      "overlap": false,
-      "utterance_id": "1222-141174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-141174.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.140919921928656,
-      "end_time": 21.210329059583746,
-      "duration": 5.0694091376550885,
-      "start_frame": 258254,
-      "duration_frames": 81110,
-      "overlap": true,
-      "utterance_id": "6119-48032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6119-48032.flac |",
-      "real_speaker_id": "6119",
-      "position_frames": 68312
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.33453639811554,
-      "end_time": 25.924402997912864,
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-      "start_frame": 357352,
-      "duration_frames": 57437,
-      "overlap": false,
-      "utterance_id": "3723-171631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171631.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 104580
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.9847991565055,
-      "end_time": 31.755627124320604,
-      "duration": 4.770827967815103,
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-      "duration_frames": 76333,
-      "overlap": false,
-      "utterance_id": "1222-141174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-141174.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 63948
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3723/laugh/0089.wav",
-      "duration": 1.44,
-      "start_time": 6.723091643614899,
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-    {
-      "event_class": "laugh",
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-      "start_time": 8.369881584386658,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1222/laugh/0083.wav",
-      "duration": 1.4,
-      "start_time": 13.437063521895872,
-      "speaker_id": "1222"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6119/laugh/0014.wav",
-      "duration": 1.323765492815072,
-      "start_time": 14.779298618787584,
-      "speaker_id": "6119"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031363.json b/conversations/conv_031363.json
deleted file mode 100644
index a7468249a854e8c9defdd96e427f759c50ae0a75..0000000000000000000000000000000000000000
--- a/conversations/conv_031363.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "580-126945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/580-126945.flac |",
-      "real_speaker_id": "580",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.59644251242991,
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-      "utterance_id": "5913-40745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
-      "real_speaker_id": "5913",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.584555021459982,
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-      "overlap": false,
-      "utterance_id": "7833-102238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102238.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.741263702422167,
-      "end_time": 24.466844311465408,
-      "duration": 4.725580609043241,
-      "start_frame": 315860,
-      "duration_frames": 75609,
-      "overlap": false,
-      "utterance_id": "5913-40745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
-      "real_speaker_id": "5913",
-      "position_frames": 82767
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.656741959637664,
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-      "duration_frames": 70666,
-      "overlap": false,
-      "utterance_id": "7833-102239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.523758866409466,
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-      "utterance_id": "5913-40745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
-      "real_speaker_id": "5913",
-      "position_frames": 158376
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.9983850974219792,
-      "start_time": 8.243047539340608
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_031368.json b/conversations/conv_031368.json
deleted file mode 100644
index 6ad57d0b2e6a18760e5ec983b81bc2ed63692d1c..0000000000000000000000000000000000000000
--- a/conversations/conv_031368.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.038931757419213,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.729545910818868,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "110-2",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.6267545292715155,
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.839246943691236,
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-      "duration_frames": 93609,
-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 102308
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "110-2",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 75672
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.976548825540124,
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-      "overlap": true,
-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.55492855227257,
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-      "duration": 3.4840032051466423,
-      "start_frame": 440878,
-      "duration_frames": 55744,
-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 195917
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/110/cough/0033.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1704/cough/0060.wav",
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-      "start_time": 30.544493697616776,
-      "speaker_id": "1704"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031375.json b/conversations/conv_031375.json
deleted file mode 100644
index 57058407cd2d47818e4dcdf7214782ddf9e421f0..0000000000000000000000000000000000000000
--- a/conversations/conv_031375.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.749840458783898,
-      "duration": 4.749840458783898,
-      "start_frame": 0,
-      "duration_frames": 75997,
-      "overlap": false,
-      "utterance_id": "7991-102381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7991-102381.flac |",
-      "real_speaker_id": "7991",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.654857329585332,
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-      "overlap": false,
-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "7991-102381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7991-102381.flac |",
-      "real_speaker_id": "7991",
-      "position_frames": 75997
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7307-92008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-92008.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7991-102381.flac |",
-      "real_speaker_id": "7991",
-      "position_frames": 170469
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 10.506091291681468
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_8.wav",
-      "duration": 0.23709750566893423,
-      "start_time": 24.590612823259615
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
-      "duration": 1.0774603174603175,
-      "start_time": 24.65967920613689
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7991/laugh/0000.wav",
-      "duration": 0.6968444168400854,
-      "start_time": 4.9308947711267885,
-      "speaker_id": "7991"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2237/laugh/0010.wav",
-      "duration": 1.12,
-      "start_time": 10.829664257933414,
-      "speaker_id": "2237"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7991/laugh/0076.wav",
-      "duration": 1.56,
-      "start_time": 28.098815290252517,
-      "speaker_id": "7991"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7991/cough/0023.wav",
-      "duration": 0.30250935738226886,
-      "start_time": 25.28532906210171,
-      "speaker_id": "7991"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031379.json b/conversations/conv_031379.json
deleted file mode 100644
index a9f097a1ec63eb6bcbb5372777e935fbf05d8620..0000000000000000000000000000000000000000
--- a/conversations/conv_031379.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.27730543232768,
-      "duration": 6.27730543232768,
-      "start_frame": 0,
-      "duration_frames": 100436,
-      "overlap": false,
-      "utterance_id": "7967-104986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-104986.flac |",
-      "real_speaker_id": "7967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.736419765792071,
-      "end_time": 11.423202307498972,
-      "duration": 4.6867825417069,
-      "start_frame": 107782,
-      "duration_frames": 74988,
-      "overlap": false,
-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.960258506644639,
-      "end_time": 18.087073270127924,
-      "duration": 6.126814763483287,
-      "start_frame": 191364,
-      "duration_frames": 98029,
-      "overlap": false,
-      "utterance_id": "7967-117095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-117095.flac |",
-      "real_speaker_id": "7967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.75309035455232,
-      "end_time": 22.33804586621442,
-      "duration": 3.5849555116620975,
-      "start_frame": 300049,
-      "duration_frames": 57359,
-      "overlap": false,
-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 74988
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.07602580106044,
-      "end_time": 28.859093922941604,
-      "duration": 5.783068121881166,
-      "start_frame": 369216,
-      "duration_frames": 92529,
-      "overlap": false,
-      "utterance_id": "16-122827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122827.flac |",
-      "real_speaker_id": "16",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.993758743737715,
-      "end_time": 32.0,
-      "duration": 3.0062412562622853,
-      "start_frame": 463900,
-      "duration_frames": 48099,
-      "overlap": false,
-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 132347
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
-      "duration": 23.329212325793673,
-      "start_time": 1.457702791945422
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 1.5293516082030467,
-      "start_time": 12.99441644781874
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7967/cough/0008.wav",
-      "duration": 0.7426960292900254,
-      "start_time": 11.065340191677366,
-      "speaker_id": "7967"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/525/laugh/0019.wav",
-      "duration": 0.7409362241674522,
-      "start_time": 17.858545357026305,
-      "speaker_id": "525"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/525/cough/0151.wav",
-      "duration": 0.9180664676967107,
-      "start_time": 17.64844022162595,
-      "speaker_id": "525"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/16/laugh/0042.wav",
-      "duration": 0.5530443342838078,
-      "start_time": 29.059729565938092,
-      "speaker_id": "16"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/16/cough/0063.wav",
-      "duration": 1.1337841817369827,
-      "start_time": 28.93450330176402,
-      "speaker_id": "16"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/525/cough/0151.wav",
-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "525"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031380.json b/conversations/conv_031380.json
deleted file mode 100644
index c57593d4cc8368448cb99a9c9500f47789bf2b62..0000000000000000000000000000000000000000
--- a/conversations/conv_031380.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.773595566377075,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.175222371339654,
-      "duration": 5.175222371339654,
-      "start_frame": 0,
-      "duration_frames": 82803,
-      "overlap": false,
-      "utterance_id": "6904-262291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.043736199693832,
-      "end_time": 9.781173613860538,
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-      "overlap": true,
-      "utterance_id": "922-132299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132299.flac |",
-      "real_speaker_id": "922",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.525093450413994,
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-      "duration": 5.069018546688115,
-      "start_frame": 168401,
-      "duration_frames": 81104,
-      "overlap": false,
-      "utterance_id": "6904-262305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262305.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.740212705383584,
-      "end_time": 18.547913529964024,
-      "duration": 3.807700824580439,
-      "start_frame": 235843,
-      "duration_frames": 60923,
-      "overlap": true,
-      "utterance_id": "922-132299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132299.flac |",
-      "real_speaker_id": "922",
-      "position_frames": 75798
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.1263888791545,
-      "end_time": 24.59215588599929,
-      "duration": 4.465767006844788,
-      "start_frame": 322022,
-      "duration_frames": 71452,
-      "overlap": false,
-      "utterance_id": "922-132300",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132300.flac |",
-      "real_speaker_id": "922",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.258440780023104,
-      "end_time": 31.773595566377075,
-      "duration": 6.515154786353969,
-      "start_frame": 404135,
-      "duration_frames": 104242,
-      "overlap": false,
-      "utterance_id": "2673-162130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-162130.flac |",
-      "real_speaker_id": "2673",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_11.wav",
-      "duration": 1.0354648526077097,
-      "start_time": 12.593896447704532
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
-      "duration": 0.6683219954648526,
-      "start_time": 8.62664849643928
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6904/laugh/0008.wav",
-      "duration": 1.2715233508895232,
-      "start_time": 5.441817600526586,
-      "speaker_id": "6904"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6904/cough/0036.wav",
-      "duration": 0.5701818920914186,
-      "start_time": 15.743104245514045,
-      "speaker_id": "6904"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/922/laugh/0008.wav",
-      "duration": 1.04,
-      "start_time": 13.58822403171433,
-      "speaker_id": "922"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/922/cough/0024.wav",
-      "duration": 0.34765855990820105,
-      "start_time": 18.60344010209217,
-      "speaker_id": "922"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/922/laugh/0064.wav",
-      "duration": 1.28,
-      "start_time": 20.83594625199121,
-      "speaker_id": "922"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031387.json b/conversations/conv_031387.json
deleted file mode 100644
index de662caad6a35dedc1158cdf3b8cce9f7735d717..0000000000000000000000000000000000000000
--- a/conversations/conv_031387.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.620761420787908,
-      "duration": 5.620761420787908,
-      "start_frame": 0,
-      "duration_frames": 89932,
-      "overlap": false,
-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.737180947753076,
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-      "duration": 6.457613653048812,
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-      "duration_frames": 103321,
-      "overlap": false,
-      "utterance_id": "2817-142371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.019872803422743,
-      "end_time": 17.610293504295996,
-      "duration": 3.5904207008732545,
-      "start_frame": 224317,
-      "duration_frames": 57446,
-      "overlap": false,
-      "utterance_id": "7764-106805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
-      "real_speaker_id": "7764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.745391833025682,
-      "end_time": 22.597565647084398,
-      "duration": 4.852173814058717,
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-      "duration_frames": 77634,
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-      "utterance_id": "3825-134160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.888768821873903,
-      "end_time": 26.17704472478941,
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-      "duration_frames": 52612,
-      "overlap": false,
-      "utterance_id": "2817-142371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 103321
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.489822794202613,
-      "end_time": 32.0,
-      "duration": 5.510177205797387,
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-      "duration_frames": 88162,
-      "overlap": false,
-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_2.wav",
-      "duration": 0.3128344671201814,
-      "start_time": 5.2094799084358305
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
-      "duration": 0.2863945578231292,
-      "start_time": 16.40321318430524
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2817/laugh/0085.wav",
-      "duration": 0.5294990917795642,
-      "start_time": 1.6637829929031873,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7764/laugh/0078.wav",
-      "duration": 1.3,
-      "start_time": 17.691703420010864,
-      "speaker_id": "7764"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2817/laugh/0089.wav",
-      "duration": 0.6509392994375193,
-      "start_time": 22.139617404995143,
-      "speaker_id": "2817"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3825/cough/0059.wav",
-      "duration": 0.92,
-      "start_time": 25.507869989865824,
-      "speaker_id": "3825"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031391.json b/conversations/conv_031391.json
deleted file mode 100644
index 6956ed9e83b2aca17dee4bfdcf65a9b0126dc9b2..0000000000000000000000000000000000000000
--- a/conversations/conv_031391.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.15687143010879,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "real_speaker_id": "3546",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.175131291353285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-9321.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 61465
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4697-92150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-92150.flac |",
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-      "position_frames": 84631
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-  "background_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4697/laugh/0095.wav",
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-      "event_class": "cough",
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-      "speaker_id": "4697"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031396.json b/conversations/conv_031396.json
deleted file mode 100644
index f04ddaad5736030137680144a339662b3a4aa0fa..0000000000000000000000000000000000000000
--- a/conversations/conv_031396.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8565-290391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290391.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.064070739114755,
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-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
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-      "real_speaker_id": "3546",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290391.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_031400.json b/conversations/conv_031400.json
deleted file mode 100644
index 5d32a8339f4055017e303807d4e0669e80c2ee8e..0000000000000000000000000000000000000000
--- a/conversations/conv_031400.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
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-      "real_speaker_id": "3969",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "5022",
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-      "position_frames": 86405
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031401.json b/conversations/conv_031401.json
deleted file mode 100644
index 798748aba2446015e03dc5471641cc977bef6327..0000000000000000000000000000000000000000
--- a/conversations/conv_031401.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2013-147610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147610.flac |",
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-      "duration": 1.44,
-      "start_time": 13.95981847560877,
-      "speaker_id": "6084"
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-      "duration": 1.44,
-      "start_time": 29.80628130225599,
-      "speaker_id": "6084"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031407.json b/conversations/conv_031407.json
deleted file mode 100644
index dd878b47403c084716c6c396b01a5237bee56a47..0000000000000000000000000000000000000000
--- a/conversations/conv_031407.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121068.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 84649
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.68838261342793,
-      "end_time": 29.708691714546823,
-      "duration": 5.020309101118895,
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-      "overlap": false,
-      "utterance_id": "55-121068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121068.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 102406
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.82288304950642,
-      "end_time": 32.0,
-      "duration": 1.1771169504935806,
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-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 165494
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "start_time": 17.637949532314234,
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031411.json b/conversations/conv_031411.json
deleted file mode 100644
index 3917d890a02066c7837d567d10953ed9c1c0973c..0000000000000000000000000000000000000000
--- a/conversations/conv_031411.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.926520144801163,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.8219181372634665,
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-      "overlap": false,
-      "utterance_id": "3488-85273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3488-85273.flac |",
-      "real_speaker_id": "3488",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
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-      "start_time": 10.788973603987579,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293531.flac |",
-      "real_speaker_id": "8138",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3488-85273.flac |",
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-      "position_frames": 77150
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3060-163540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 69631
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.595271609728098,
-      "end_time": 31.926520144801163,
-      "duration": 6.3312485350730645,
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-      "overlap": false,
-      "utterance_id": "8138-293531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293531.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 89146
-    }
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031416.json b/conversations/conv_031416.json
deleted file mode 100644
index f82ec235581afd9aa2a99f2a723a0610373bf196..0000000000000000000000000000000000000000
--- a/conversations/conv_031416.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4356-6498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6498.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115687.flac |",
-      "real_speaker_id": "8119",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156117.flac |",
-      "real_speaker_id": "2568",
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-    {
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-      "real_speaker_id": "8119",
-      "position_frames": 58358
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.085746023640503,
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-      "duration": 2.914253976359497,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156117.flac |",
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-      "position_frames": 59505
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-  "foreground_events": [
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-      "start_time": 0,
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-    {
-      "event_class": "cough",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031420.json b/conversations/conv_031420.json
deleted file mode 100644
index 7e3c6e3fd42d9f4d19fc13b261ed1fe2509f4c60..0000000000000000000000000000000000000000
--- a/conversations/conv_031420.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
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-      "speaker_id": "3679"
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.3638587539950406,
-      "start_time": 27.29898563921767,
-      "speaker_id": "953"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_031436.json b/conversations/conv_031436.json
deleted file mode 100644
index e7393327e2525bec33387384b0b6e83f6813b4fa..0000000000000000000000000000000000000000
--- a/conversations/conv_031436.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5765-231845.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 91220
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.774928711121333,
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-      "utterance_id": "5765-231844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5765-231844.flac |",
-      "real_speaker_id": "5765",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.48504818300588,
-      "end_time": 28.288073512092232,
-      "duration": 5.803025329086351,
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-      "duration_frames": 92848,
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 178561
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.262019240153386,
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-      "duration": 2.7379807598466144,
-      "start_frame": 468192,
-      "duration_frames": 43807,
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-      "utterance_id": "5765-87740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5765-87740.flac |",
-      "real_speaker_id": "5765",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-  "paralinguistic_events": [
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-      "start_time": 17.294111283618793,
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-}
\ No newline at end of file
diff --git a/conversations/conv_031441.json b/conversations/conv_031441.json
deleted file mode 100644
index f99d0de1820901724ccae51cf8b924f061362bf2..0000000000000000000000000000000000000000
--- a/conversations/conv_031441.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14487.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2062-143900.flac |",
-      "real_speaker_id": "2062",
-      "position_frames": 94260
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.393606165049054,
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-      "overlap": false,
-      "utterance_id": "4262-14486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14486.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031446.json b/conversations/conv_031446.json
deleted file mode 100644
index bd29042d80c9fa28cde23884f446d4ac7c3c59c8..0000000000000000000000000000000000000000
--- a/conversations/conv_031446.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "608-123155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123155.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.462654206546766,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123155.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 91395
-    },
-    {
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-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "608-123193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123193.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.42461549486052,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154885.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123154.flac |",
-      "real_speaker_id": "608",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154885.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 89275
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/608/laugh/0077.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/608/laugh/0053.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/608/laugh/0109.wav",
-      "duration": 1.16,
-      "start_time": 27.472161593748943,
-      "speaker_id": "608"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2356/cough/0124.wav",
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-      "speaker_id": "2356"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031450.json b/conversations/conv_031450.json
deleted file mode 100644
index c049f896ed1e62776c328045dc31fd4165dfb95b..0000000000000000000000000000000000000000
--- a/conversations/conv_031450.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "365-84340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1492",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1492-174461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-174461.flac |",
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-      "position_frames": 92279
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "2060",
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126320.flac |",
-      "real_speaker_id": "365",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
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-      "duration": 1.52,
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-}
\ No newline at end of file
diff --git a/conversations/conv_031457.json b/conversations/conv_031457.json
deleted file mode 100644
index 402fd549e596e71bd7830a28cf0a76409e1fce87..0000000000000000000000000000000000000000
--- a/conversations/conv_031457.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "8014-112586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-112586.flac |",
-      "real_speaker_id": "8014",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
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-      "position_frames": 0
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-      "utterance_id": "8506-287660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-287660.flac |",
-      "real_speaker_id": "8506",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-280382.flac |",
-      "real_speaker_id": "8014",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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\ No newline at end of file
diff --git a/conversations/conv_031461.json b/conversations/conv_031461.json
deleted file mode 100644
index 15192681a03d3d56f87160926132423e52bf44e4..0000000000000000000000000000000000000000
--- a/conversations/conv_031461.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2348",
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-      "utterance_id": "8295-281321",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031477.json b/conversations/conv_031477.json
deleted file mode 100644
index dd8951b9d575bacf35c094a556b8dee4e1cba493..0000000000000000000000000000000000000000
--- a/conversations/conv_031477.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "6378-61781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61781.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "470-123366",
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-      "real_speaker_id": "470",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1160-134674.flac |",
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-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_031482.json b/conversations/conv_031482.json
deleted file mode 100644
index fc32274cd8a1cd60a8ac984abfbd82773beb1764..0000000000000000000000000000000000000000
--- a/conversations/conv_031482.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
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-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-113273.flac |",
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-136054.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031494.json b/conversations/conv_031494.json
deleted file mode 100644
index 8e1e1e917d418d48dc97e3caa83d04e8ddbbc5c9..0000000000000000000000000000000000000000
--- a/conversations/conv_031494.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-34478.flac |",
-      "real_speaker_id": "5400",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121665.flac |",
-      "real_speaker_id": "289",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-3587.flac |",
-      "real_speaker_id": "5400",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.215509738706444,
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-      "utterance_id": "7434-96672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 59372
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.601455928092733,
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-      "utterance_id": "289-121652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121652.flac |",
-      "real_speaker_id": "289",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031495.json b/conversations/conv_031495.json
deleted file mode 100644
index 1a0e70f0694a1eb848e67c43055744f7094bda7a..0000000000000000000000000000000000000000
--- a/conversations/conv_031495.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "4156-12155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "3584",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 105263
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "322-124146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124146.flac |",
-      "real_speaker_id": "322",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "speaker_id": "322"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031498.json b/conversations/conv_031498.json
deleted file mode 100644
index 0346adefbd045130fea9353d2e2c01b6371b406a..0000000000000000000000000000000000000000
--- a/conversations/conv_031498.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 75005,
-      "overlap": false,
-      "utterance_id": "8266-279363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-279363.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.209890355664215,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-279363.flac |",
-      "real_speaker_id": "8266",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258263.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "speaker_id": 0,
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-      "real_speaker_id": "7717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "position_frames": 77351
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031503.json b/conversations/conv_031503.json
deleted file mode 100644
index e4ca63048777c89d1e6d5dd749eb5aca0a0f42cf..0000000000000000000000000000000000000000
--- a/conversations/conv_031503.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "2275-150140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2275-150140.flac |",
-      "real_speaker_id": "2275",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.33968604590156,
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-      "utterance_id": "7879-274163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274163.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.25393345115555,
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-      "duration": 3.74606654884445,
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-      "utterance_id": "2275-150141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2275-150141.flac |",
-      "real_speaker_id": "2275",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1926/laugh/0078.wav",
-      "duration": 1.3,
-      "start_time": 23.520293231294225,
-      "speaker_id": "1926"
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-      "speaker_id": "2275"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031504.json b/conversations/conv_031504.json
deleted file mode 100644
index 4f72160fcc7c35aeb45fc6197330a3dce54e6683..0000000000000000000000000000000000000000
--- a/conversations/conv_031504.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7229-80665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80665.flac |",
-      "real_speaker_id": "7229",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.272596962776309,
-      "end_time": 12.010925781552647,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-300880.flac |",
-      "real_speaker_id": "6064",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.126001367199242,
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-      "utterance_id": "1331-155891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155891.flac |",
-      "real_speaker_id": "1331",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 16.821363595417594,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-300880.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155891.flac |",
-      "real_speaker_id": "1331",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80665.flac |",
-      "real_speaker_id": "7229",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "6064-56168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-56168.flac |",
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-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031508.json b/conversations/conv_031508.json
deleted file mode 100644
index d317021e9c44fcb60475554878999a091eb52e6c..0000000000000000000000000000000000000000
--- a/conversations/conv_031508.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "921-127933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127933.flac |",
-      "real_speaker_id": "921",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7258",
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-      "real_speaker_id": "7258",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176683.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.684907346929887,
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-      "utterance_id": "921-127937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127937.flac |",
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-      "position_frames": 75646
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031512.json b/conversations/conv_031512.json
deleted file mode 100644
index 652b0735b3b797c52a9498c895eac44c181e2f62..0000000000000000000000000000000000000000
--- a/conversations/conv_031512.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1353-121397",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5733/laugh/0037.wav",
-      "duration": 0.7919644246675108,
-      "start_time": 14.617076936561546,
-      "speaker_id": "5733"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031515.json b/conversations/conv_031515.json
deleted file mode 100644
index ae00de02fa88412e6b2288d7ce3dc948b6bab28a..0000000000000000000000000000000000000000
--- a/conversations/conv_031515.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.624784142791339,
-      "duration": 4.624784142791339,
-      "start_frame": 0,
-      "duration_frames": 73996,
-      "overlap": false,
-      "utterance_id": "2294-161707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161707.flac |",
-      "real_speaker_id": "2294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.584828336548828,
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-      "duration": 5.300052944195184,
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-      "overlap": false,
-      "utterance_id": "3228-4687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4687.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.326385408517968,
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-      "duration": 6.924451346917468,
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-      "duration_frames": 110791,
-      "overlap": true,
-      "utterance_id": "2294-161714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161714.flac |",
-      "real_speaker_id": "2294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.325781969368588,
-      "end_time": 22.63499323848221,
-      "duration": 3.3092112691136215,
-      "start_frame": 309212,
-      "duration_frames": 52947,
-      "overlap": false,
-      "utterance_id": "3228-4690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.902321728873034,
-      "end_time": 29.096913568359007,
-      "duration": 5.194591839485971,
-      "start_frame": 382437,
-      "duration_frames": 83113,
-      "overlap": false,
-      "utterance_id": "2294-161707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161707.flac |",
-      "real_speaker_id": "2294",
-      "position_frames": 73996
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.91499624353886,
-      "end_time": 32.0,
-      "duration": 2.0850037564611412,
-      "start_frame": 478639,
-      "duration_frames": 33360,
-      "overlap": false,
-      "utterance_id": "489-75912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75912.flac |",
-      "real_speaker_id": "489",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.3433344779287246,
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.016404636781691,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2294/laugh/0092.wav",
-      "duration": 1.36,
-      "start_time": 0,
-      "speaker_id": "2294"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/489/laugh/0021.wav",
-      "duration": 0.950001813932377,
-      "start_time": 30.304280784523034,
-      "speaker_id": "489"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031524.json b/conversations/conv_031524.json
deleted file mode 100644
index d1b1cef3a77264ea3696e2263f27015e909d4c12..0000000000000000000000000000000000000000
--- a/conversations/conv_031524.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.103481616898776,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.789902948527915,
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-      "start_frame": 0,
-      "duration_frames": 108638,
-      "overlap": false,
-      "utterance_id": "5700-51758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51758.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.713244675556375,
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-      "overlap": true,
-      "utterance_id": "572-96582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-96582.flac |",
-      "real_speaker_id": "572",
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-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "7147-80028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.44402726415101,
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-      "overlap": false,
-      "utterance_id": "5700-44605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-44605.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.064772731523288,
-      "end_time": 29.69812116846863,
-      "duration": 4.633348436945344,
-      "start_frame": 401036,
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-      "overlap": false,
-      "utterance_id": "572-96582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-96582.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 59380
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.977551437193274,
-      "end_time": 31.103481616898776,
-      "duration": 2.1259301797055024,
-      "start_frame": 463640,
-      "duration_frames": 34014,
-      "overlap": true,
-      "utterance_id": "5700-44605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-44605.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 106769
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/572/laugh/0018.wav",
-      "duration": 1.0872552893595375,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5700/cough/0119.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031528.json b/conversations/conv_031528.json
deleted file mode 100644
index 6e1f55f32be84c57430e7e7ea59164257ea638da..0000000000000000000000000000000000000000
--- a/conversations/conv_031528.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.450790457665228,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "duration": 5.937925511684863,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2289-152257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152257.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.166647836586467,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58759.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6687-119386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119386.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.874371016994068,
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-      "utterance_id": "2289-152254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152254.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.377434505209827,
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-      "duration_frames": 65173,
-      "overlap": false,
-      "utterance_id": "6025-56405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-56405.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031532.json b/conversations/conv_031532.json
deleted file mode 100644
index 8fdef3c265e002045b9fa58fb7ee26d6fdffd650..0000000000000000000000000000000000000000
--- a/conversations/conv_031532.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "3221-9174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
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-      "duration": 4.917360610155093,
-      "start_time": 17.537635148985505
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4039/cough/0067.wav",
-      "duration": 0.684781354604939,
-      "start_time": 29.549602245075278,
-      "speaker_id": "4039"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031542.json b/conversations/conv_031542.json
deleted file mode 100644
index c6fe2066b1b80ba366732ddfd882d9574eb38cda..0000000000000000000000000000000000000000
--- a/conversations/conv_031542.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.102258391326667,
-      "duration": 4.102258391326667,
-      "start_frame": 0,
-      "duration_frames": 65636,
-      "overlap": false,
-      "utterance_id": "31-121969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121969.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.564258402015224,
-      "end_time": 9.442517336931218,
-      "duration": 4.878258934915993,
-      "start_frame": 73028,
-      "duration_frames": 78052,
-      "overlap": false,
-      "utterance_id": "475-125001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125001.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.822099040027073,
-      "end_time": 15.126392411669313,
-      "duration": 5.30429337164224,
-      "start_frame": 157153,
-      "duration_frames": 84868,
-      "overlap": false,
-      "utterance_id": "31-121972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121972.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.976079622878586,
-      "end_time": 21.410017993825836,
-      "duration": 5.433938370947248,
-      "start_frame": 255617,
-      "duration_frames": 86943,
-      "overlap": false,
-      "utterance_id": "475-124994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124994.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.13864099187539,
-      "end_time": 27.66989234310816,
-      "duration": 5.531251351232769,
-      "start_frame": 354218,
-      "duration_frames": 88500,
-      "overlap": false,
-      "utterance_id": "31-121972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121972.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 84868
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.94023341240213,
-      "end_time": 32.0,
-      "duration": 4.059766587597871,
-      "start_frame": 447043,
-      "duration_frames": 64956,
-      "overlap": false,
-      "utterance_id": "3114-170976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 13.508192689740703,
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/31/laugh/0026.wav",
-      "duration": 1.04,
-      "start_time": 1.5181614244559594,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/31/cough/0008.wav",
-      "duration": 0.44492890665534623,
-      "start_time": 24.731414893944105,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3114/laugh/0018.wav",
-      "duration": 1.32,
-      "start_time": 28.289102801503226,
-      "speaker_id": "3114"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3114/cough/0039.wav",
-      "duration": 0.7582217286530639,
-      "start_time": 27.004173530431935,
-      "speaker_id": "3114"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031544.json b/conversations/conv_031544.json
deleted file mode 100644
index 888c821cb94e71ec3f59a46bd216ee61b0d50feb..0000000000000000000000000000000000000000
--- a/conversations/conv_031544.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.305217294433522,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.975543030657804,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1061-152224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-152224.flac |",
-      "real_speaker_id": "1061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.72916958626916,
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-      "overlap": false,
-      "utterance_id": "1054-143005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
-      "real_speaker_id": "1054",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1061-146197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-146197.flac |",
-      "real_speaker_id": "1061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.42817726516042,
-      "end_time": 24.993773993102522,
-      "duration": 4.565596727942099,
-      "start_frame": 326850,
-      "duration_frames": 73049,
-      "overlap": false,
-      "utterance_id": "3728-105386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105386.flac |",
-      "real_speaker_id": "3728",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.72091035475377,
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-      "duration": 5.5843069396797524,
-      "start_frame": 411534,
-      "duration_frames": 89348,
-      "overlap": false,
-      "utterance_id": "1054-143005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
-      "real_speaker_id": "1054",
-      "position_frames": 84457
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_11.wav",
-      "duration": 1.0354648526077097,
-      "start_time": 29.44431974257136
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
-      "duration": 2.280666257735686,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1054/laugh/0109.wav",
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-      "start_time": 11.09382501105365,
-      "speaker_id": "1054"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031545.json b/conversations/conv_031545.json
deleted file mode 100644
index c58c636b5fc8338a752de5da6ebd27bc5b55f785..0000000000000000000000000000000000000000
--- a/conversations/conv_031545.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6788-92420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-92420.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136848.flac |",
-      "real_speaker_id": "1601",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6788-96241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-96241.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.033099815015845,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136848.flac |",
-      "real_speaker_id": "1601",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1601/laugh/0030.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1601/laugh/0065.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031549.json b/conversations/conv_031549.json
deleted file mode 100644
index 92d08d0f2da1d31ac04cae48e0afd5f993783ecd..0000000000000000000000000000000000000000
--- a/conversations/conv_031549.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_frame": 0,
-      "duration_frames": 69624,
-      "overlap": false,
-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2051-153962",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031553.json b/conversations/conv_031553.json
deleted file mode 100644
index 55d3cb837462164ecb067cac04a1bb491329014e..0000000000000000000000000000000000000000
--- a/conversations/conv_031553.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 73797
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-134968.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_031554.json b/conversations/conv_031554.json
deleted file mode 100644
index c43e43a2a460593b746544ee3e0271accc7b2679..0000000000000000000000000000000000000000
--- a/conversations/conv_031554.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4484",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_031565.json b/conversations/conv_031565.json
deleted file mode 100644
index 3c56f8a8ef8a24efe068ff3b8c8c2f1269c5d8bf..0000000000000000000000000000000000000000
--- a/conversations/conv_031565.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1448-135894.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_031568.json b/conversations/conv_031568.json
deleted file mode 100644
index 88f9f9e7f053364b97db58064b00850464f33893..0000000000000000000000000000000000000000
--- a/conversations/conv_031568.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
-      "position_frames": 141389
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
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-      "position_frames": 159685
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-      "speaker_id": "5471"
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 13.806319554506697,
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-}
\ No newline at end of file
diff --git a/conversations/conv_031569.json b/conversations/conv_031569.json
deleted file mode 100644
index 5224a7789677efdd02609bca607c569da32939ec..0000000000000000000000000000000000000000
--- a/conversations/conv_031569.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4397-15678",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15678.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.921155912326798,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293943.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 75310
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4397-15666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15666.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.79820291832901,
-      "end_time": 32.0,
-      "duration": 4.201797081670989,
-      "start_frame": 444771,
-      "duration_frames": 67228,
-      "overlap": false,
-      "utterance_id": "8545-273050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 141113
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-      "speaker_id": "8545"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031573.json b/conversations/conv_031573.json
deleted file mode 100644
index 16c01fe08d31ec6436d460eec2d6d747ed41bdd1..0000000000000000000000000000000000000000
--- a/conversations/conv_031573.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.16598507294963,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "6399-278846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278846.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
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-      "utterance_id": "6399-278846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278846.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 93233
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 81222
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "4936",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6399-278849",
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-      "real_speaker_id": "6399",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6399/laugh/0018.wav",
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-      "start_time": 28.490618142370057,
-      "speaker_id": "6399"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031586.json b/conversations/conv_031586.json
deleted file mode 100644
index 1cc9da40cb56057845d672db30577464ea63021c..0000000000000000000000000000000000000000
--- a/conversations/conv_031586.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.639935713589573,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "overlap": false,
-      "utterance_id": "3138-173544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
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-      "real_speaker_id": "3138",
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 61547
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-    {
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-      "real_speaker_id": "3138",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 54494,
-      "overlap": true,
-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1124/cough/0052.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3138/laugh/0009.wav",
-      "duration": 1.2,
-      "start_time": 26.341459207211916,
-      "speaker_id": "3138"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031587.json b/conversations/conv_031587.json
deleted file mode 100644
index 93a9529a64ab933a28be9d6bd786a832c84412c5..0000000000000000000000000000000000000000
--- a/conversations/conv_031587.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1845-147962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-147962.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126860.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-147962.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 61001
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.585546325444312,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-147962.flac |",
-      "real_speaker_id": "1845",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_031590.json b/conversations/conv_031590.json
deleted file mode 100644
index 9e5afc0cd46ae5b461b85d255005fa2464093696..0000000000000000000000000000000000000000
--- a/conversations/conv_031590.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.18939719535383,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-77173.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 0
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-      "real_speaker_id": "3645",
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\ No newline at end of file
diff --git a/conversations/conv_031601.json b/conversations/conv_031601.json
deleted file mode 100644
index 6d441521c31bd719118f7b4aaea26684e1477696..0000000000000000000000000000000000000000
--- a/conversations/conv_031601.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5013-31101.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5013-31101.flac |",
-      "real_speaker_id": "5013",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130728.flac |",
-      "real_speaker_id": "830",
-      "position_frames": 89757
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.591754375871144,
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-      "duration_frames": 70097,
-      "overlap": false,
-      "utterance_id": "830-130728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130728.flac |",
-      "real_speaker_id": "830",
-      "position_frames": 166774
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.49471123831237,
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-      "duration": 4.5052887616876305,
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-      "utterance_id": "5013-31101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5013-31101.flac |",
-      "real_speaker_id": "5013",
-      "position_frames": 142004
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_031606.json b/conversations/conv_031606.json
deleted file mode 100644
index cfaae7cfb4272aac45c06e21b24152c9be7ebd5d..0000000000000000000000000000000000000000
--- a/conversations/conv_031606.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "overlap": false,
-      "utterance_id": "5136-53512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-53512.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.5191501392347115,
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-      "utterance_id": "5154-6174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-6174.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "2504-154289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2504-154289.flac |",
-      "real_speaker_id": "2504",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.676300776766215,
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-      "utterance_id": "5154-26558",
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-      "real_speaker_id": "5154",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.8851995058704247,
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-      "utterance_id": "5136-5094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-5094.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 68396
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031616.json b/conversations/conv_031616.json
deleted file mode 100644
index 4205a4ab2003cbbfa00f286c42082c36881dd68c..0000000000000000000000000000000000000000
--- a/conversations/conv_031616.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.014060505539237,
-      "duration": 4.014060505539237,
-      "start_frame": 0,
-      "duration_frames": 64224,
-      "overlap": false,
-      "utterance_id": "8770-295465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295465.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.877814717127723,
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-      "overlap": false,
-      "utterance_id": "8770-295465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295465.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 64224
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.803190980178247,
-      "end_time": 13.733277556646566,
-      "duration": 3.930086576468319,
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-      "duration_frames": 62881,
-      "overlap": false,
-      "utterance_id": "6367-74004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-74004.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.714062269391468,
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-      "utterance_id": "6367-65536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.809962144336424,
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-      "utterance_id": "7886-110518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110518.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8770-295462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295462.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "overlap": false,
-      "utterance_id": "7886-110517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110517.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 25.20655328798186,
-      "start_time": 4.952672558228192
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
-      "duration": 0.14183673469387756,
-      "start_time": 30.756456982641293
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
-      "duration": 1.0652834467120182,
-      "start_time": 20.62161382893861
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8770/cough/0010.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "8770"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8770/laugh/0001.wav",
-      "duration": 1.24,
-      "start_time": 3.3707992573373113,
-      "speaker_id": "8770"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6367/laugh/0085.wav",
-      "duration": 0.7425870560797445,
-      "start_time": 9.059850921157462,
-      "speaker_id": "6367"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6367/cough/0083.wav",
-      "duration": 1.0,
-      "start_time": 13.75673526882938,
-      "speaker_id": "6367"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6367/laugh/0094.wav",
-      "duration": 1.32,
-      "start_time": 18.81130205722424,
-      "speaker_id": "6367"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7886/laugh/0019.wav",
-      "duration": 1.12,
-      "start_time": 30.005995135700477,
-      "speaker_id": "7886"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031617.json b/conversations/conv_031617.json
deleted file mode 100644
index 37f26216d7e61bc04a1029eb7a4826c3fc02fe66..0000000000000000000000000000000000000000
--- a/conversations/conv_031617.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.3121319082577605,
-      "duration": 5.3121319082577605,
-      "start_frame": 0,
-      "duration_frames": 84994,
-      "overlap": false,
-      "utterance_id": "3733-140718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.2132207090781115,
-      "end_time": 12.472090656111805,
-      "duration": 6.258869947033693,
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-      "overlap": false,
-      "utterance_id": "4481-17499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4481-17499.flac |",
-      "real_speaker_id": "4481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.188331092567616,
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-      "duration": 5.003539577050153,
-      "start_frame": 211013,
-      "duration_frames": 80056,
-      "overlap": false,
-      "utterance_id": "9023-296468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.6393585017308,
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-      "duration": 3.2303612239731305,
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-      "duration_frames": 51685,
-      "overlap": false,
-      "utterance_id": "9023-296467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296467.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.3679999667131,
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-      "duration": 5.046829639600234,
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-      "duration_frames": 80749,
-      "overlap": true,
-      "utterance_id": "3733-140718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 84994
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.841636653925107,
-      "end_time": 32.0,
-      "duration": 3.1583633460748928,
-      "start_frame": 461466,
-      "duration_frames": 50533,
-      "overlap": false,
-      "utterance_id": "9023-296467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296467.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 51685
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
-      "duration": 4.7999867976116315,
-      "start_time": 16.811193137477154
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
-      "duration": 3.560636733557654,
-      "start_time": 6.934016865669128
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3733/laugh/0063.wav",
-      "duration": 1.6228549386160585,
-      "start_time": 5.479994376005325,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4481/cough/0034.wav",
-      "duration": 1.0355632698465769,
-      "start_time": 11.22003984120278,
-      "speaker_id": "4481"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/9023/laugh/0090.wav",
-      "duration": 0.7381933694995253,
-      "start_time": 18.281608625269758,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/9023/laugh/0076.wav",
-      "duration": 1.261908778252846,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031621.json b/conversations/conv_031621.json
deleted file mode 100644
index 502dfabf425ce2cd119ed7b74cb7e1e4fe8fbbdd..0000000000000000000000000000000000000000
--- a/conversations/conv_031621.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 4.1896758296264345,
-      "start_frame": 0,
-      "duration_frames": 67034,
-      "overlap": false,
-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.715354462752792,
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-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 67034
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "5471",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 14.6176294852568,
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-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5471-284440",
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-      "real_speaker_id": "5471",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4277-185519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185519.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.007005110590363,
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-      "real_speaker_id": "5471",
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5471/cough/0100.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031637.json b/conversations/conv_031637.json
deleted file mode 100644
index 25b3bc31162851c7bfb6ca6b72931193d260dc2c..0000000000000000000000000000000000000000
--- a/conversations/conv_031637.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.390441166746935,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.944965046260469,
-      "duration": 4.944965046260469,
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-      "overlap": false,
-      "utterance_id": "4381-14904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14904.flac |",
-      "real_speaker_id": "4381",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "792",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2618-138042",
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-    {
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14897.flac |",
-      "real_speaker_id": "4381",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031640.json b/conversations/conv_031640.json
deleted file mode 100644
index f9aadc71edb81522c558214eff62394fe8b76541..0000000000000000000000000000000000000000
--- a/conversations/conv_031640.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.173389179134574,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "173-200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.134707688361785,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-124566.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-133256.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.053310352307115,
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-      "overlap": true,
-      "utterance_id": "1183-128659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-128659.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.531993296756756,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 188480
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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\ No newline at end of file
diff --git a/conversations/conv_031656.json b/conversations/conv_031656.json
deleted file mode 100644
index 8fafac7335fce8e00574aed69d323a386a755460..0000000000000000000000000000000000000000
--- a/conversations/conv_031656.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123155.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123154.flac |",
-      "real_speaker_id": "608",
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-      "start_time": 24.65479294679103,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 186380
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "608-123154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123154.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 56018
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031660.json b/conversations/conv_031660.json
deleted file mode 100644
index f014599ee804781304a4b7c6492481cfd5496a0a..0000000000000000000000000000000000000000
--- a/conversations/conv_031660.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.567719007135885,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "7246-86779",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-86779.flac |",
-      "real_speaker_id": "7246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2388-153731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153731.flac |",
-      "real_speaker_id": "2388",
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-      "real_speaker_id": "7246",
-      "position_frames": 62058
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-      "real_speaker_id": "2388",
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-    },
-    {
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2388-153728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153728.flac |",
-      "real_speaker_id": "2388",
-      "position_frames": 0
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "2388"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031676.json b/conversations/conv_031676.json
deleted file mode 100644
index 32d181f7def44afb910c966fcdc3453775b2c020..0000000000000000000000000000000000000000
--- a/conversations/conv_031676.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278238.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_031683.json b/conversations/conv_031683.json
deleted file mode 100644
index d90148bd6bacf43a6aee1579f51621a77c21ccd0..0000000000000000000000000000000000000000
--- a/conversations/conv_031683.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "5049",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-155505.flac |",
-      "real_speaker_id": "2437",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
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-      "real_speaker_id": "2437",
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\ No newline at end of file
diff --git a/conversations/conv_031684.json b/conversations/conv_031684.json
deleted file mode 100644
index 2e658d6b251a9d825b70ca14307f4ecebd7576dc..0000000000000000000000000000000000000000
--- a/conversations/conv_031684.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_031692.json b/conversations/conv_031692.json
deleted file mode 100644
index f0dc3fbd4922f97450f7c74c1fe9f61afa30ea94..0000000000000000000000000000000000000000
--- a/conversations/conv_031692.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3061.flac |",
-      "real_speaker_id": "4059",
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-    {
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_031695.json b/conversations/conv_031695.json
deleted file mode 100644
index 0eebca65e75a9e8ff66117420add9fe949be03b1..0000000000000000000000000000000000000000
--- a/conversations/conv_031695.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8685.flac |",
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-    {
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-      "real_speaker_id": "6341",
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-      "real_speaker_id": "6341",
-      "position_frames": 56233
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8682.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_031699.json b/conversations/conv_031699.json
deleted file mode 100644
index c279695f313a6971fb215a469e015d40359791e7..0000000000000000000000000000000000000000
--- a/conversations/conv_031699.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3394-168627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-168627.flac |",
-      "real_speaker_id": "3394",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-168627.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 87571
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-      "segment_id": "seg0005",
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-  "background_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_031704.json b/conversations/conv_031704.json
deleted file mode 100644
index 4f1bf9c6beda5a639e158426a68e46d525a8b3a7..0000000000000000000000000000000000000000
--- a/conversations/conv_031704.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-132570.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "7607-89899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
-      "real_speaker_id": "7607",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_031705.json b/conversations/conv_031705.json
deleted file mode 100644
index cbe628930b7c5dfac4416eb3778c9b7939a24524..0000000000000000000000000000000000000000
--- a/conversations/conv_031705.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "127-129385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-    {
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031709.json b/conversations/conv_031709.json
deleted file mode 100644
index cecd2bb9ff5f30944c13da4500dee9e79f3c30ee..0000000000000000000000000000000000000000
--- a/conversations/conv_031709.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "3368-170950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170950.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134153.flac |",
-      "real_speaker_id": "3819",
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-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.61062143975122,
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-      "position_frames": 67608
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-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 95410
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.14273431689298,
-      "end_time": 32.0,
-      "duration": 2.85726568310702,
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-      "overlap": false,
-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
-      "duration": 4.9791278039137215,
-      "start_time": 20.288993224585074
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6792/laugh/0120.wav",
-      "duration": 1.28,
-      "start_time": 9.701341320420804,
-      "speaker_id": "6792"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6792/laugh/0041.wav",
-      "duration": 1.0019616548860286,
-      "start_time": 28.72253855916444,
-      "speaker_id": "6792"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6792/laugh/0032.wav",
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-      "speaker_id": "6792"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6792/cough/0017.wav",
-      "duration": 0.7804857826067317,
-      "start_time": 28.26107457459077,
-      "speaker_id": "6792"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031713.json b/conversations/conv_031713.json
deleted file mode 100644
index 9041a9c73af0de14bf772264cb1d24c9ddccd363..0000000000000000000000000000000000000000
--- a/conversations/conv_031713.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6162732682094605,
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-      "overlap": false,
-      "utterance_id": "1621-141592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141592.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.156357299163128,
-      "end_time": 7.35136789040318,
-      "duration": 3.195010591240053,
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-      "utterance_id": "7138-73705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-73705.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 7.99508186397714,
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-      "utterance_id": "1621-141593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141593.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 0
-    },
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-      "utterance_id": "815-130105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130105.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 16.535648129081753,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291964.flac |",
-      "real_speaker_id": "7138",
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-      "utterance_id": "1621-141592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141592.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 57860
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "815-130569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130569.flac |",
-      "real_speaker_id": "815",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1621/laugh/0069.wav",
-      "duration": 1.28,
-      "start_time": 20.743347926089065,
-      "speaker_id": "1621"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031725.json b/conversations/conv_031725.json
deleted file mode 100644
index d1b8adb704ef8ba3df8d145a7d4d61c102a7f404..0000000000000000000000000000000000000000
--- a/conversations/conv_031725.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3845-8894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8894.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
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-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "3845-8924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8924.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 74280
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-    {
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-      "utterance_id": "3845-176676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-176676.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3845/laugh/0124.wav",
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-    {
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-      "start_time": 14.749640675986045,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3845/cough/0008.wav",
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-      "start_time": 26.110236195447545,
-      "speaker_id": "3845"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031729.json b/conversations/conv_031729.json
deleted file mode 100644
index 799a4e1070e6894fad3a951f105a5952e11afc1b..0000000000000000000000000000000000000000
--- a/conversations/conv_031729.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "2407-7664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7664.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2407-7666",
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-      "real_speaker_id": "2407",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "5036",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.454968967788552,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7667.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5036/laugh/0036.wav",
-      "duration": 1.44,
-      "start_time": 12.873914295120235,
-      "speaker_id": "5036"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/laugh/0019.wav",
-      "duration": 0.6807497772269634,
-      "start_time": 19.061223276244366,
-      "speaker_id": "4955"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/cough/0038.wav",
-      "duration": 0.8745819590342567,
-      "start_time": 18.9824605674831,
-      "speaker_id": "4955"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5036/laugh/0120.wav",
-      "duration": 1.4,
-      "start_time": 25.010625405361328,
-      "speaker_id": "5036"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2407/laugh/0127.wav",
-      "duration": 1.0,
-      "start_time": 27.197218332866687,
-      "speaker_id": "2407"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031733.json b/conversations/conv_031733.json
deleted file mode 100644
index 15b43e6d9aa2332e9044dddade34228d6efcd5de..0000000000000000000000000000000000000000
--- a/conversations/conv_031733.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.479446137877453,
-      "duration": 5.479446137877453,
-      "start_frame": 0,
-      "duration_frames": 87671,
-      "overlap": false,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.9566784977238925,
-      "end_time": 12.94655250339215,
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-      "overlap": false,
-      "utterance_id": "7026-86941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.463631336481047,
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-      "duration": 4.425137974774386,
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-      "overlap": false,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 87671
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.427917367207733,
-      "end_time": 22.33850702199528,
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-      "overlap": false,
-      "utterance_id": "3584-178748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3584-178748.flac |",
-      "real_speaker_id": "3584",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.265189817752518,
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-      "overlap": false,
-      "utterance_id": "7026-86941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 111837
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.489567728330787,
-      "end_time": 32.0,
-      "duration": 2.510432271669213,
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-      "duration_frames": 40166,
-      "overlap": false,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 158473
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "duration": 1.04,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3584/laugh/0056.wav",
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-      "speaker_id": "7026"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031738.json b/conversations/conv_031738.json
deleted file mode 100644
index 437769a535c4c53c9209740e0a5aceb32bf3e662..0000000000000000000000000000000000000000
--- a/conversations/conv_031738.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4267-78186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-78186.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-292138.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.322162304760445,
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-      "overlap": true,
-      "utterance_id": "4267-78186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-78186.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 100370
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.976230370913086,
-      "end_time": 25.906849287488537,
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-      "utterance_id": "6418-39655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39655.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.310205094484008,
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-      "duration": 5.689794905515992,
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-      "utterance_id": "4267-287369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-287369.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031743.json b/conversations/conv_031743.json
deleted file mode 100644
index e65eb4b50d86d096f21f6505bacc9382640a25f9..0000000000000000000000000000000000000000
--- a/conversations/conv_031743.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1266-135837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-135837.flac |",
-      "real_speaker_id": "1266",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179157.flac |",
-      "real_speaker_id": "2159",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1266-136524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-136524.flac |",
-      "real_speaker_id": "1266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "2159-179156",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4442-2868",
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-      "real_speaker_id": "4442",
-      "position_frames": 0
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-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_031744.json b/conversations/conv_031744.json
deleted file mode 100644
index f53415653e6dd8c296b235679f17d1e0a6129aa0..0000000000000000000000000000000000000000
--- a/conversations/conv_031744.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "end_time": 5.503571519510705,
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-      "utterance_id": "8742-245707",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "1124-134775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-134775.flac |",
-      "real_speaker_id": "1124",
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-      "segment_id": "seg0002",
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-      "utterance_id": "921-127933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127933.flac |",
-      "real_speaker_id": "921",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-134775.flac |",
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-      "speaker_id": "921"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031748.json b/conversations/conv_031748.json
deleted file mode 100644
index d623ea79f93aa3c5b7af5d5af4298ab592f12049..0000000000000000000000000000000000000000
--- a/conversations/conv_031748.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-128145.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 13.156382123912973,
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-      "utterance_id": "718-129597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129597.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.15997503989685,
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-      "utterance_id": "1271-136861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-136861.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-133279.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_031752.json b/conversations/conv_031752.json
deleted file mode 100644
index a8ff58fb34a17553600779333df51ce7d779e8ea..0000000000000000000000000000000000000000
--- a/conversations/conv_031752.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6610",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.51858410616059,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141593.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 96796
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031753.json b/conversations/conv_031753.json
deleted file mode 100644
index eb41ba21ba8b3971df753fd5841a6b62776fdfcf..0000000000000000000000000000000000000000
--- a/conversations/conv_031753.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-35680.flac |",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5489-10988",
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\ No newline at end of file
diff --git a/conversations/conv_031764.json b/conversations/conv_031764.json
deleted file mode 100644
index 81259b7576ce8c9a9acb1143755b296d536e7c23..0000000000000000000000000000000000000000
--- a/conversations/conv_031764.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2136-5140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5140.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": "110"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031768.json b/conversations/conv_031768.json
deleted file mode 100644
index de9acbc287c0798e1d98aff17ad92a05d70deafa..0000000000000000000000000000000000000000
--- a/conversations/conv_031768.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.381617008911096,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4340-15220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.128485747007257,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-408.flac |",
-      "real_speaker_id": "2952",
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.382513994345832,
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-      "utterance_id": "4340-15220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 82746
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.4793374705574,
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-      "overlap": false,
-      "utterance_id": "2952-407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-407.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.074502236036007,
-      "end_time": 26.582850532584622,
-      "duration": 4.508348296548613,
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-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.703057862788654,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-410.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_031772.json b/conversations/conv_031772.json
deleted file mode 100644
index bfef2566c60a6587fd0ecb2d02c4e66fda17547d..0000000000000000000000000000000000000000
--- a/conversations/conv_031772.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.658176321280155,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154880.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154880.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_031779.json b/conversations/conv_031779.json
deleted file mode 100644
index aac593864f1d9532c0a105d995832413d1c24689..0000000000000000000000000000000000000000
--- a/conversations/conv_031779.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_031780.json b/conversations/conv_031780.json
deleted file mode 100644
index 1bcaf89af55921cc64e39b82f5df2c0fe4ed4385..0000000000000000000000000000000000000000
--- a/conversations/conv_031780.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
-      "duration": 1.712665717595883,
-      "start_time": 19.887859510224644
-    },
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
-      "duration": 0.6348979591836734,
-      "start_time": 21.927056921292152
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/198/laugh/0070.wav",
-      "duration": 0.5971841327420184,
-      "start_time": 22.483116505335225,
-      "speaker_id": "198"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/198/cough/0007.wav",
-      "duration": 0.9242280025067022,
-      "start_time": 22.355569727910098,
-      "speaker_id": "198"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1066/cough/0097.wav",
-      "duration": 0.8353748675193811,
-      "start_time": 21.617308962696743,
-      "speaker_id": "1066"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8080/cough/0063.wav",
-      "duration": 1.4,
-      "start_time": 29.426491107804683,
-      "speaker_id": "8080"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031787.json b/conversations/conv_031787.json
deleted file mode 100644
index 7484179eb7092d07526c33796b86b9e253c43e8c..0000000000000000000000000000000000000000
--- a/conversations/conv_031787.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.287327059974303,
-      "duration": 5.287327059974303,
-      "start_frame": 0,
-      "duration_frames": 84597,
-      "overlap": false,
-      "utterance_id": "5886-27508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5886-27508.flac |",
-      "real_speaker_id": "5886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.7545376998356765,
-      "end_time": 11.537968472941223,
-      "duration": 5.783430773105548,
-      "start_frame": 92072,
-      "duration_frames": 92534,
-      "overlap": false,
-      "utterance_id": "5487-4873",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-4873.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.390565334248754,
-      "end_time": 17.672449617850436,
-      "duration": 5.281884283601682,
-      "start_frame": 198249,
-      "duration_frames": 84510,
-      "overlap": false,
-      "utterance_id": "5487-4873",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-4873.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 92534
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.153377857048092,
-      "end_time": 23.045307115490246,
-      "duration": 4.891929258442153,
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-      "duration_frames": 78270,
-      "overlap": true,
-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.000246048407362,
-      "end_time": 27.77648262817768,
-      "duration": 4.776236579770317,
-      "start_frame": 368003,
-      "duration_frames": 76419,
-      "overlap": true,
-      "utterance_id": "5487-4873",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-4873.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 177044
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.29035028797653,
-      "end_time": 32.0,
-      "duration": 2.70964971202347,
-      "start_frame": 468645,
-      "duration_frames": 43354,
-      "overlap": false,
-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 78270
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 25.700137707083837,
-      "start_time": 0.7553415400300925
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.982767073715292,
-      "start_time": 17.676726792982144
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
-      "duration": 4.704229943029388,
-      "start_time": 2.395351176577292
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5487/cough/0007.wav",
-      "duration": 0.6849345382437819,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5487/laugh/0090.wav",
-      "duration": 0.5506245618275543,
-      "start_time": 17.677174129023147,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5487/cough/0093.wav",
-      "duration": 1.2215962727836547,
-      "start_time": 14.607723245748913,
-      "speaker_id": "5487"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7218/laugh/0022.wav",
-      "duration": 1.28,
-      "start_time": 23.139378454044,
-      "speaker_id": "7218"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5487/cough/0085.wav",
-      "duration": 0.8413691984937701,
-      "start_time": 27.783833714696904,
-      "speaker_id": "5487"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031791.json b/conversations/conv_031791.json
deleted file mode 100644
index 83bebf2277e1b88bf461cd4d1229575d9c2a44e2..0000000000000000000000000000000000000000
--- a/conversations/conv_031791.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.639668135929563,
-      "duration": 4.639668135929563,
-      "start_frame": 0,
-      "duration_frames": 74234,
-      "overlap": false,
-      "utterance_id": "7331-86027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86027.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.796290253253263,
-      "end_time": 7.894660888112174,
-      "duration": 3.0983706348589117,
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-      "overlap": false,
-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.897386559627835,
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-      "duration": 4.456075505841366,
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-      "duration_frames": 71297,
-      "overlap": false,
-      "utterance_id": "453-131332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-131332.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.992919360009665,
-      "end_time": 21.080801159960338,
-      "duration": 6.0878817999506705,
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-      "duration_frames": 97406,
-      "overlap": false,
-      "utterance_id": "7331-86047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86047.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.881110541665898,
-      "end_time": 26.23952841758599,
-      "duration": 5.358417875920093,
-      "start_frame": 334097,
-      "duration_frames": 85734,
-      "overlap": true,
-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 49573
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.49804847650546,
-      "end_time": 32.0,
-      "duration": 4.50195152349454,
-      "start_frame": 439968,
-      "duration_frames": 72031,
-      "overlap": false,
-      "utterance_id": "7331-86047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86047.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 97406
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.0415148487666315,
-      "start_time": 24.751548707417733
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7331/laugh/0058.wav",
-      "duration": 0.6899905909648004,
-      "start_time": 0,
-      "speaker_id": "7331"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2812/cough/0037.wav",
-      "duration": 1.04,
-      "start_time": 7.9890472675699655,
-      "speaker_id": "2812"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7331/cough/0009.wav",
-      "duration": 0.5587033645489139,
-      "start_time": 14.421289046352756,
-      "speaker_id": "7331"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7331/laugh/0087.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "7331"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031796.json b/conversations/conv_031796.json
deleted file mode 100644
index c4db7814ae3ed88904a9d5c3c9ff9915804765ea..0000000000000000000000000000000000000000
--- a/conversations/conv_031796.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.17503122060965,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.430914089996497,
-      "duration": 5.430914089996497,
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-      "duration_frames": 86894,
-      "overlap": false,
-      "utterance_id": "4423-16011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-16011.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.213898144846146,
-      "end_time": 9.161972989136974,
-      "duration": 3.9480748442908267,
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-      "overlap": true,
-      "utterance_id": "5460-24509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-24509.flac |",
-      "real_speaker_id": "5460",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.003022620841074,
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-      "utterance_id": "4423-29083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-29083.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.262117675554766,
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-      "duration_frames": 85475,
-      "overlap": false,
-      "utterance_id": "2289-152257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152257.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5460-24509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-24509.flac |",
-      "real_speaker_id": "5460",
-      "position_frames": 63169
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.470420372032688,
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-      "utterance_id": "4423-16012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-16012.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5460/cough/0080.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4423/laugh/0025.wav",
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-      "start_time": 29.20648305147542,
-      "speaker_id": "4423"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4423/cough/0042.wav",
-      "duration": 0.8047292082489144,
-      "start_time": 28.865403300154686,
-      "speaker_id": "4423"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031800.json b/conversations/conv_031800.json
deleted file mode 100644
index 88671061206deef9c3893bc83cbb6fb8dc828494..0000000000000000000000000000000000000000
--- a/conversations/conv_031800.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.287132253149373,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.9300482489380135,
-      "duration": 4.9300482489380135,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.8011989138999995,
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-      "overlap": false,
-      "utterance_id": "3780-177782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177782.flac |",
-      "real_speaker_id": "3780",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1046-133224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1046-133224.flac |",
-      "real_speaker_id": "1046",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177782.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 69526
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1046-133225.flac |",
-      "real_speaker_id": "1046",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.122315279287722,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1046-133225.flac |",
-      "real_speaker_id": "1046",
-      "position_frames": 57470
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.54253559496501,
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-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 78880
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
-      "duration": 0.3160770975056689,
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-  "paralinguistic_events": [
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-      "duration": 1.4,
-      "start_time": 12.148755805470055,
-      "speaker_id": "1046"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1046/laugh/0062.wav",
-      "duration": 1.24,
-      "start_time": 22.8196019649741,
-      "speaker_id": "1046"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1813/laugh/0037.wav",
-      "duration": 0.7364313809761418,
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-      "speaker_id": "1813"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031807.json b/conversations/conv_031807.json
deleted file mode 100644
index 548437224a119d7e93ec08b5284e53070e709035..0000000000000000000000000000000000000000
--- a/conversations/conv_031807.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.29632840933729,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.672708101290655,
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-      "start_frame": 0,
-      "duration_frames": 90763,
-      "overlap": false,
-      "utterance_id": "1924-132574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132574.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.884695564587235,
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-      "overlap": true,
-      "utterance_id": "322-124147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124147.flac |",
-      "real_speaker_id": "322",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.99496198892022,
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-      "overlap": false,
-      "utterance_id": "5781-52137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52137.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.35104514768893,
-      "end_time": 26.191517859915457,
-      "duration": 6.8404727122265285,
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-      "duration_frames": 109447,
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-      "utterance_id": "322-124146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124146.flac |",
-      "real_speaker_id": "322",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.347174425379336,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.59991961141815,
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-      "duration_frames": 27142,
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-      "utterance_id": "5781-52135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 60456
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031811.json b/conversations/conv_031811.json
deleted file mode 100644
index 29c8ff783993597f448d95b20b933979839ebf45..0000000000000000000000000000000000000000
--- a/conversations/conv_031811.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
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-      "utterance_id": "3641-6870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11547.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-134615.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11546.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11546.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 78311
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
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-      "position_frames": 69561
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.38,
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-      "speaker_id": "4098"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031816.json b/conversations/conv_031816.json
deleted file mode 100644
index ca0ee7d456bb31afd8d14933b332fa42234a6d2a..0000000000000000000000000000000000000000
--- a/conversations/conv_031816.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "175-127696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-127696.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.104898388997329,
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-      "utterance_id": "2581-157857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-157857.flac |",
-      "real_speaker_id": "2581",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-127696.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 94043
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7117-86732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86732.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.439990278250605,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-127696.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 160884
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031817.json b/conversations/conv_031817.json
deleted file mode 100644
index 4f2685ed1b051006972b184f81cb4c2aa38580d4..0000000000000000000000000000000000000000
--- a/conversations/conv_031817.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "3664-178355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-178355.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "625",
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-    {
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-      "position_frames": 107666
-    },
-    {
-      "segment_id": "seg0004",
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-      "duration": 6.544787620274924,
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-      "utterance_id": "3664-178366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-178366.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3664/laugh/0016.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "3664"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/625/cough/0068.wav",
-      "duration": 0.3050831612527626,
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-      "speaker_id": "625"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3664/laugh/0103.wav",
-      "duration": 0.913122852451888,
-      "start_time": 19.01581927620825,
-      "speaker_id": "3664"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031820.json b/conversations/conv_031820.json
deleted file mode 100644
index 74fb737dacd0c05804813fc081404d23c8e152b5..0000000000000000000000000000000000000000
--- a/conversations/conv_031820.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.450016662074773,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6351-64714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.9879253774472,
-      "end_time": 13.280613872794905,
-      "duration": 6.292688495347704,
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-      "utterance_id": "2416-152139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.697469304815048,
-      "end_time": 19.146144362790906,
-      "duration": 5.44867505797586,
-      "start_frame": 219159,
-      "duration_frames": 87178,
-      "overlap": false,
-      "utterance_id": "329-861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-861.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.819235701744983,
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-      "utterance_id": "6351-65787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-65787.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.201422077525734,
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-      "utterance_id": "6351-65787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-65787.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 95726
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/329/laugh/0100.wav",
-      "duration": 1.0841654051855223,
-      "start_time": 19.21997975913263,
-      "speaker_id": "329"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031836.json b/conversations/conv_031836.json
deleted file mode 100644
index 2e1120aa3f62ee7f980eaf23afb7e73977a0992a..0000000000000000000000000000000000000000
--- a/conversations/conv_031836.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.08950444930562,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.122261494335662,
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-      "utterance_id": "3807-4955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57660.flac |",
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-      "utterance_id": "2943-171000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171000.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 65956
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.030985297256223,
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-      "utterance_id": "2943-171001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171001.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.707821206548406,
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-      "utterance_id": "3807-4955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 153872
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.48700336918114,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57660.flac |",
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-  "background_events": [
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_031841.json b/conversations/conv_031841.json
deleted file mode 100644
index 4c9298fbd5a16781cd7a91e17423b82a0e555f10..0000000000000000000000000000000000000000
--- a/conversations/conv_031841.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.451069512070436,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "overlap": false,
-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137589.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.75904706080229,
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-      "utterance_id": "3374-298032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3374-298032.flac |",
-      "real_speaker_id": "3374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.465371174914544,
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-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 102934
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.405537715652724,
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-      "duration_frames": 16728,
-      "overlap": true,
-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
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-      "position_frames": 77072
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.2,
-      "start_time": 30.405537715652724,
-      "speaker_id": "1322"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031846.json b/conversations/conv_031846.json
deleted file mode 100644
index 13852bc34b8390753ccc1f4e53951fa06e11a12c..0000000000000000000000000000000000000000
--- a/conversations/conv_031846.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.939328861672973,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8194-89390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.496193197129447,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8194-89388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 141371
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-  "background_events": [
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-      "speaker_id": "839"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031850.json b/conversations/conv_031850.json
deleted file mode 100644
index 192c36b408df1eec1967cb943dd321bd5b9663a6..0000000000000000000000000000000000000000
--- a/conversations/conv_031850.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.46982905794776,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 3.304083703567649,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-123866.flac |",
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 49739
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.50804180989053,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 102056
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.4909723163104,
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-      "duration_frames": 59375,
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-      "utterance_id": "6436-111962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-111962.flac |",
-      "real_speaker_id": "6436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.401711272289496,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 181863
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-122810.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_031857.json b/conversations/conv_031857.json
deleted file mode 100644
index 42f5064c38ea7ef273f853f7ec7540248faa5178..0000000000000000000000000000000000000000
--- a/conversations/conv_031857.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "2485-151992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-151992.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52159.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-151993.flac |",
-      "real_speaker_id": "2485",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52160.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "3967",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.906190620009355,
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-      "utterance_id": "2485-151993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-151993.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 64530
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031860.json b/conversations/conv_031860.json
deleted file mode 100644
index 18bfe4865ef257c38879f74a7fa9c0ed125c6942..0000000000000000000000000000000000000000
--- a/conversations/conv_031860.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-715.flac |",
-      "real_speaker_id": "3922",
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-      "real_speaker_id": "7739",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "position_frames": 65420
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.305819629264327,
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-      "real_speaker_id": "3922",
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-    {
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-      "real_speaker_id": "7739",
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031861.json b/conversations/conv_031861.json
deleted file mode 100644
index 0053bbdc1c3936275ed07cafdb15fa608de3ce22..0000000000000000000000000000000000000000
--- a/conversations/conv_031861.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "6848-252322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6848-252322.flac |",
-      "real_speaker_id": "6848",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6848",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125951.flac |",
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_031877.json b/conversations/conv_031877.json
deleted file mode 100644
index 3dc91cf4fdaf7c29f99804a41b67e6061a47bf68..0000000000000000000000000000000000000000
--- a/conversations/conv_031877.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.585492120224696,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-282412.flac |",
-      "real_speaker_id": "8347",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-282412.flac |",
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-      "position_frames": 80048
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27767.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_031882.json b/conversations/conv_031882.json
deleted file mode 100644
index 6b6ad0d5e76339813b11912ce3e43fbf768b6d21..0000000000000000000000000000000000000000
--- a/conversations/conv_031882.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-140649.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_031883.json b/conversations/conv_031883.json
deleted file mode 100644
index 17f931d2fc2f75b83c87863351b8d9d0586fb09b..0000000000000000000000000000000000000000
--- a/conversations/conv_031883.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-220956.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031894.json b/conversations/conv_031894.json
deleted file mode 100644
index c574a9f029c49512ff44f61c4fa5cdae21cb7385..0000000000000000000000000000000000000000
--- a/conversations/conv_031894.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-18515.flac |",
-      "real_speaker_id": "5163",
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-      "segment_id": "seg0005",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "8245"
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-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "speaker_id": "5163"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031898.json b/conversations/conv_031898.json
deleted file mode 100644
index ce5cd26bf782b4eca711787ff0944dec762986f7..0000000000000000000000000000000000000000
--- a/conversations/conv_031898.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131045.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-145458.flac |",
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-      "overlap": true,
-      "utterance_id": "4352-16038",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-16038.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.318974824800154,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131045.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 95285
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.748174426250195,
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-      "utterance_id": "909-131044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131044.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.217791518842827,
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-      "utterance_id": "254-127705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-127705.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "start_time": 30.92,
-      "speaker_id": "254"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031903.json b/conversations/conv_031903.json
deleted file mode 100644
index 24acc53ee2fe040822a5aace151810c9a5064a70..0000000000000000000000000000000000000000
--- a/conversations/conv_031903.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.52709796432268,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-54099.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 88277
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "3588",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031904.json b/conversations/conv_031904.json
deleted file mode 100644
index fa80043e5b15c3a5c1f6ee41d1df11eb60936ad3..0000000000000000000000000000000000000000
--- a/conversations/conv_031904.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2297-28913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2297-28913.flac |",
-      "real_speaker_id": "2297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6513-71946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71946.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.61069095946915,
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-      "start_frame": 201771,
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-      "overlap": false,
-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "6513",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6157",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6513-67788",
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-      "real_speaker_id": "6513",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "cough",
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "6157"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6513/laugh/0103.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "6513"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031908.json b/conversations/conv_031908.json
deleted file mode 100644
index 8ab2c5ad00c3dbecc6ff6ca20797312995079610..0000000000000000000000000000000000000000
--- a/conversations/conv_031908.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.757809313675196,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.196627527254099,
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-      "start_frame": 0,
-      "duration_frames": 99146,
-      "overlap": false,
-      "utterance_id": "8441-120274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-120274.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5224",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-284014.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.53097284022028,
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-      "utterance_id": "5224-35456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35456.flac |",
-      "real_speaker_id": "5224",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8441-281327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_9.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8441/laugh/0094.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "8441"
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031912.json b/conversations/conv_031912.json
deleted file mode 100644
index 456b9568ccc3119d01186508e9003935b1c657d0..0000000000000000000000000000000000000000
--- a/conversations/conv_031912.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.298525144583678,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "252-29350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-29350.flac |",
-      "real_speaker_id": "252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.483228972264392,
-      "end_time": 9.382197302238616,
-      "duration": 4.898968329974225,
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-      "duration_frames": 78383,
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-      "utterance_id": "6707-77351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77351.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-140215.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-132011.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-128411.flac |",
-      "real_speaker_id": "252",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031915.json b/conversations/conv_031915.json
deleted file mode 100644
index fe81df8322f3958c4dcd18ff869e9da7259f3aed..0000000000000000000000000000000000000000
--- a/conversations/conv_031915.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2301-157880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157880.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
-    },
-    {
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-    {
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-      "real_speaker_id": "245",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "614",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031924.json b/conversations/conv_031924.json
deleted file mode 100644
index 1cd977264b40457efd5ad05fb95889118dbd1a20..0000000000000000000000000000000000000000
--- a/conversations/conv_031924.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "duration": 1.16,
-      "start_time": 16.03213449241931,
-      "speaker_id": "4425"
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "4425"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031928.json b/conversations/conv_031928.json
deleted file mode 100644
index 66a80e649ceb9f3833325b52dc89432e0e547765..0000000000000000000000000000000000000000
--- a/conversations/conv_031928.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.43379982593894,
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-      "overlap": false,
-      "utterance_id": "1505-1304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1304.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.915187736160847,
-      "end_time": 11.1831500995807,
-      "duration": 5.267962363419854,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-122655.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "duration_frames": 59888,
-      "overlap": true,
-      "utterance_id": "606-127691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/606-127691.flac |",
-      "real_speaker_id": "606",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.7170554498788,
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-      "duration": 5.087776740657469,
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-      "utterance_id": "606-121661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/606-121661.flac |",
-      "real_speaker_id": "606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.79641266033534,
-      "end_time": 27.565619845666006,
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-      "overlap": false,
-      "utterance_id": "100-122655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-122655.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 84287
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.031298882249004,
-      "end_time": 32.0,
-      "duration": 3.968701117750996,
-      "start_frame": 448500,
-      "duration_frames": 63499,
-      "overlap": false,
-      "utterance_id": "100-121669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1505/laugh/0034.wav",
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-      "speaker_id": "1505"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/laugh/0023.wav",
-      "duration": 1.56,
-      "start_time": 8.951613967090776,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/606/laugh/0078.wav",
-      "duration": 1.24,
-      "start_time": 21.890890534503573,
-      "speaker_id": "606"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/100/cough/0030.wav",
-      "duration": 0.670793854380303,
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-      "event_class": "cough",
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-      "speaker_id": "100"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031929.json b/conversations/conv_031929.json
deleted file mode 100644
index b3f627fac65a042950b52e06e80cb6c3b3e940aa..0000000000000000000000000000000000000000
--- a/conversations/conv_031929.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.23287606675218,
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-      "overlap": false,
-      "utterance_id": "815-130105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130105.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.650179289672128,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-61356.flac |",
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-      "utterance_id": "815-130569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130569.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.473652968740048,
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-      "utterance_id": "5968-55202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-55202.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.467857552147283,
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-      "duration_frames": 111591,
-      "overlap": true,
-      "utterance_id": "753-150477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-150477.flac |",
-      "real_speaker_id": "753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.021823913401658,
-      "end_time": 32.0,
-      "duration": 0.9781760865983422,
-      "start_frame": 496349,
-      "duration_frames": 15650,
-      "overlap": false,
-      "utterance_id": "5968-55202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-55202.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 70582
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5968/laugh/0033.wav",
-      "duration": 1.2,
-      "start_time": 6.619541871005945,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/753/laugh/0114.wav",
-      "duration": 1.36,
-      "start_time": 29.448073840546748,
-      "speaker_id": "753"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "5968"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031932.json b/conversations/conv_031932.json
deleted file mode 100644
index c5909c269a78ff9c2f60ffcec3a2f99d20f75808..0000000000000000000000000000000000000000
--- a/conversations/conv_031932.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.491338812324017,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "243-160870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-160870.flac |",
-      "real_speaker_id": "243",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.155404464788729,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157768.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "243-162846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-162846.flac |",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.943038797444114,
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-      "utterance_id": "1094-157767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157767.flac |",
-      "real_speaker_id": "1094",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-162846.flac |",
-      "real_speaker_id": "243",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1094-157767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-157767.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 56122
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.502138055500154,
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-      "real_speaker_id": "1265",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "243"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/243/laugh/0038.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031942.json b/conversations/conv_031942.json
deleted file mode 100644
index 50dbe9d8188065dc7ca56419d6ab37ec81116c41..0000000000000000000000000000000000000000
--- a/conversations/conv_031942.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7197-66278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66278.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6147",
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-      "segment_id": "seg0003",
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\ No newline at end of file
diff --git a/conversations/conv_031945.json b/conversations/conv_031945.json
deleted file mode 100644
index 19dc59f42748dd4813e58bbf569799cadbd82c73..0000000000000000000000000000000000000000
--- a/conversations/conv_031945.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.54556817453354,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "681",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-161962.flac |",
-      "real_speaker_id": "681",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9026-282386.flac |",
-      "real_speaker_id": "9026",
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-      "speaker_id": 0,
-      "start_time": 22.97680173284808,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-161945.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.132051957725857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123154.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 93115
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031949.json b/conversations/conv_031949.json
deleted file mode 100644
index 8913a87f0e089f8340e12609eb0dd9141b6b8668..0000000000000000000000000000000000000000
--- a/conversations/conv_031949.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "real_speaker_id": "7416",
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-      "real_speaker_id": "3641",
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-      "speaker_id": "7416"
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-}
\ No newline at end of file
diff --git a/conversations/conv_031953.json b/conversations/conv_031953.json
deleted file mode 100644
index c440fe504a5298236fd7162af301ef9d86458c13..0000000000000000000000000000000000000000
--- a/conversations/conv_031953.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3992",
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\ No newline at end of file
diff --git a/conversations/conv_031954.json b/conversations/conv_031954.json
deleted file mode 100644
index 414706322e9a5d83c46ce073a21e3e8171f137a3..0000000000000000000000000000000000000000
--- a/conversations/conv_031954.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-122839.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_031965.json b/conversations/conv_031965.json
deleted file mode 100644
index ca20d5f28a5b5bc13359f577ff4488a4679b2e30..0000000000000000000000000000000000000000
--- a/conversations/conv_031965.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7796-269904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7796-269904.flac |",
-      "real_speaker_id": "7796",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "6518-66464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66464.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.24662839697958,
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-      "utterance_id": "2039-141208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141208.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.516001893871373,
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-      "utterance_id": "2039-141208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141208.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 79525
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.64798737251352,
-      "end_time": 32.0,
-      "duration": 1.3520126274864808,
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-      "duration_frames": 21632,
-      "overlap": false,
-      "utterance_id": "6518-66470",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66470.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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\ No newline at end of file
diff --git a/conversations/conv_031969.json b/conversations/conv_031969.json
deleted file mode 100644
index 4344b80c6742aeeea660ae56cd63e7c78944ae92..0000000000000000000000000000000000000000
--- a/conversations/conv_031969.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_031973.json b/conversations/conv_031973.json
deleted file mode 100644
index ef78ff9080673c011c109d8293c845032be0bbf5..0000000000000000000000000000000000000000
--- a/conversations/conv_031973.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6492",
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\ No newline at end of file
diff --git a/conversations/conv_031986.json b/conversations/conv_031986.json
deleted file mode 100644
index 951de9d8e9db55148cef6fb49b5c796d39dc8a69..0000000000000000000000000000000000000000
--- a/conversations/conv_031986.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_031990.json b/conversations/conv_031990.json
deleted file mode 100644
index 641a77128831bb5acf21cd73b9a5948c2ffcfec7..0000000000000000000000000000000000000000
--- a/conversations/conv_031990.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.950617171980821,
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-      "overlap": false,
-      "utterance_id": "3290-170207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-170207.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
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-      "start_time": 4.44367729917369,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-179163.flac |",
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-      "utterance_id": "3290-179163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-179163.flac |",
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-      "position_frames": 51382
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
-      "real_speaker_id": "5092",
-      "position_frames": 48658
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-      "segment_id": "seg0005",
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-      "duration": 6.379865846851841,
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-      "utterance_id": "3290-14909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-14909.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_031991.json b/conversations/conv_031991.json
deleted file mode 100644
index 4f68c08df17681e39f64c7962d231ea261e3ef98..0000000000000000000000000000000000000000
--- a/conversations/conv_031991.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1124-134775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-134775.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86025.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86027.flac |",
-      "real_speaker_id": "7331",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86027.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 88880
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032001.json b/conversations/conv_032001.json
deleted file mode 100644
index 6052bddb9915751eaeb9ad0c69e733a9ca4e02a8..0000000000000000000000000000000000000000
--- a/conversations/conv_032001.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8907.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
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-      "real_speaker_id": "5340",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15082.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.246824448408365,
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032006.json b/conversations/conv_032006.json
deleted file mode 100644
index c2093fffaa2148ed1aa7b460fdeb8400ad353e7d..0000000000000000000000000000000000000000
--- a/conversations/conv_032006.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.584791378758254,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 0,
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-      "utterance_id": "6106-58196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58196.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58196.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 97484
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.896604173506216,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62558.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 60871
-    },
-    {
-      "segment_id": "seg0006",
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-      "start_time": 31.05115333219415,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-163597.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 22.289932040457302,
-      "speaker_id": "6106"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032010.json b/conversations/conv_032010.json
deleted file mode 100644
index f2486851753705f2f3c7a6bc4a1683219769f1f3..0000000000000000000000000000000000000000
--- a/conversations/conv_032010.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3848-46063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3848-46063.flac |",
-      "real_speaker_id": "3848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.71229792764029,
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-      "duration_frames": 101228,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3848-37389.flac |",
-      "real_speaker_id": "3848",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
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-      "real_speaker_id": "3848",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 198637
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-  "background_events": [
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-      "event_class": "Blender",
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-      "speaker_id": "4652"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032017.json b/conversations/conv_032017.json
deleted file mode 100644
index b491ced25a642eb7e15c8eda58c41c630c47ad55..0000000000000000000000000000000000000000
--- a/conversations/conv_032017.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-12312.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-145458.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
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-    },
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-      "real_speaker_id": "254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "421-128336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
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-      "position_frames": 0
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-  ],
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
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-}
\ No newline at end of file
diff --git a/conversations/conv_032021.json b/conversations/conv_032021.json
deleted file mode 100644
index b5c41dfb9526f79efb196e61732b94031e0273d8..0000000000000000000000000000000000000000
--- a/conversations/conv_032021.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
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-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_032037.json b/conversations/conv_032037.json
deleted file mode 100644
index 53ebfe26a50ce4a3163b6036d2b33cca6647754f..0000000000000000000000000000000000000000
--- a/conversations/conv_032037.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-184333.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-7597.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_032040.json b/conversations/conv_032040.json
deleted file mode 100644
index cc36c19f20c661a7a655038989e9ed71f518ad3d..0000000000000000000000000000000000000000
--- a/conversations/conv_032040.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_032047.json b/conversations/conv_032047.json
deleted file mode 100644
index d679213d190b642ce81ad5aa54876bd8fd497e36..0000000000000000000000000000000000000000
--- a/conversations/conv_032047.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_032051.json b/conversations/conv_032051.json
deleted file mode 100644
index e22760c2f28d8c1ed79207bebba13cfc79edb177..0000000000000000000000000000000000000000
--- a/conversations/conv_032051.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1593/laugh/0033.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "1593"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1552/laugh/0039.wav",
-      "duration": 0.5591401627566316,
-      "start_time": 6.355101737526448,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1593/laugh/0038.wav",
-      "duration": 1.12,
-      "start_time": 26.354001543574913,
-      "speaker_id": "1593"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032056.json b/conversations/conv_032056.json
deleted file mode 100644
index 6ef1e92a4e6e850feeccc25de589c0beb06997f9..0000000000000000000000000000000000000000
--- a/conversations/conv_032056.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.798857238389312,
-      "duration": 5.798857238389312,
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-      "overlap": false,
-      "utterance_id": "4592-26872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-26872.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.243840878551644,
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-      "duration": 5.674598081626101,
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-      "duration_frames": 90793,
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-      "utterance_id": "1093-132891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1093-132891.flac |",
-      "real_speaker_id": "1093",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "duration": 6.139414188048953,
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-      "overlap": false,
-      "utterance_id": "4592-22179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22179.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.256984960070373,
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-      "overlap": false,
-      "utterance_id": "2624-88360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.445353407242987,
-      "end_time": 30.644111294491637,
-      "duration": 6.198757887248652,
-      "start_frame": 391125,
-      "duration_frames": 99180,
-      "overlap": false,
-      "utterance_id": "4592-22178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22178.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.287722108990344,
-      "end_time": 32.0,
-      "duration": 0.7122778910096557,
-      "start_frame": 500603,
-      "duration_frames": 11396,
-      "overlap": false,
-      "utterance_id": "2624-173598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-173598.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "2624"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032060.json b/conversations/conv_032060.json
deleted file mode 100644
index 5d34b35425c3afe95ec4322e1801996266dfe859..0000000000000000000000000000000000000000
--- a/conversations/conv_032060.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "203-132069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132069.flac |",
-      "real_speaker_id": "203",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.946963191924315,
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-      "utterance_id": "1603-139324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139324.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "203-126577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-126577.flac |",
-      "real_speaker_id": "203",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.25519990059487,
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-      "overlap": false,
-      "utterance_id": "6701-71402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71402.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.80275435533624,
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-      "overlap": false,
-      "utterance_id": "1603-141713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-141713.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.221899729455682,
-      "end_time": 32.0,
-      "duration": 2.778100270544318,
-      "start_frame": 467550,
-      "duration_frames": 44449,
-      "overlap": false,
-      "utterance_id": "203-132069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132069.flac |",
-      "real_speaker_id": "203",
-      "position_frames": 90103
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 1.56,
-      "start_time": 25.239287195835978,
-      "speaker_id": "1603"
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-    {
-      "event_class": "cough",
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-    {
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-      "duration": 0.7458414994197718,
-      "start_time": 31.25415850058023,
-      "speaker_id": "203"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032076.json b/conversations/conv_032076.json
deleted file mode 100644
index ed0205030beedd1ba57ff1c805bcfe27747f9cad..0000000000000000000000000000000000000000
--- a/conversations/conv_032076.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "204-162375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-162375.flac |",
-      "real_speaker_id": "204",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.215590756485096,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-284431.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.40403123273482,
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-      "utterance_id": "204-162375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-162375.flac |",
-      "real_speaker_id": "204",
-      "position_frames": 77947
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration": 4.24500896513949,
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-      "utterance_id": "2104-75220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-75220.flac |",
-      "real_speaker_id": "2104",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.04620222973117,
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-      "real_speaker_id": "6735",
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-    {
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-      "real_speaker_id": "204",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.670778941280645,
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-      "utterance_id": "2104-78253",
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-      "real_speaker_id": "2104",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6735/laugh/0129.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6735/cough/0063.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/204/cough/0058.wav",
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-      "speaker_id": "204"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032082.json b/conversations/conv_032082.json
deleted file mode 100644
index 946f33c0cddebe0df60e51ae7b24078122ce1345..0000000000000000000000000000000000000000
--- a/conversations/conv_032082.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.320402706593857,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "887-123289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123289.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-282406.flac |",
-      "real_speaker_id": "8097",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "887-123289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123289.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 95066
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.95599646481081,
-      "end_time": 30.50842629868367,
-      "duration": 4.5524298338728615,
-      "start_frame": 415295,
-      "duration_frames": 72838,
-      "overlap": false,
-      "utterance_id": "887-123291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123291.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.356882882709776,
-      "end_time": 31.320402706593857,
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-      "utterance_id": "46-127996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
-      "duration": 2.7394593828329,
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/887/laugh/0018.wav",
-      "duration": 1.4122054730305222,
-      "start_time": 19.313594341057684,
-      "speaker_id": "887"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/887/cough/0052.wav",
-      "duration": 1.2155020587797778,
-      "start_time": 30.592353547366695,
-      "speaker_id": "887"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032083.json b/conversations/conv_032083.json
deleted file mode 100644
index 8e73357cdd52489a46fe72e6a2517ab247c6f99e..0000000000000000000000000000000000000000
--- a/conversations/conv_032083.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.678192693153049,
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-      "overlap": false,
-      "utterance_id": "1699-141159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141159.flac |",
-      "real_speaker_id": "1699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.389541544654565,
-      "end_time": 8.51362898718041,
-      "duration": 3.1240874425258434,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.854423761001419,
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-      "overlap": false,
-      "utterance_id": "1699-141159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141159.flac |",
-      "real_speaker_id": "1699",
-      "position_frames": 74851
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.273159916513736,
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-      "duration": 6.015356303282875,
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-      "duration_frames": 96245,
-      "overlap": false,
-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.979385182804698,
-      "end_time": 25.445645622671282,
-      "duration": 4.466260439866585,
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-      "duration_frames": 71460,
-      "overlap": false,
-      "utterance_id": "242-122627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 49985
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.616393929371007,
-      "end_time": 28.760002121788464,
-      "duration": 3.1436081924174575,
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-      "duration_frames": 50297,
-      "overlap": false,
-      "utterance_id": "1699-141160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141160.flac |",
-      "real_speaker_id": "1699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.271899153555566,
-      "end_time": 32.0,
-      "duration": 2.728100846444434,
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-      "duration_frames": 43649,
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-      "utterance_id": "242-122627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 121445
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1699/laugh/0134.wav",
-      "duration": 1.6,
-      "start_time": 0,
-      "speaker_id": "1699"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1699/laugh/0124.wav",
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-      "duration": 1.1429473501708174,
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-      "speaker_id": "1699"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032095.json b/conversations/conv_032095.json
deleted file mode 100644
index e0f5905aa576330f79ff7cecfbaafae9ed7ace67..0000000000000000000000000000000000000000
--- a/conversations/conv_032095.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.5909819407278984,
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-      "overlap": false,
-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.204126423909858,
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-      "overlap": false,
-      "utterance_id": "534-127538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127538.flac |",
-      "real_speaker_id": "534",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 105455
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.535799963783845,
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-      "start_frame": 280572,
-      "duration_frames": 71337,
-      "overlap": true,
-      "utterance_id": "534-123059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-123059.flac |",
-      "real_speaker_id": "534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.140078860546335,
-      "end_time": 28.09085355963293,
-      "duration": 4.950774699086594,
-      "start_frame": 370241,
-      "duration_frames": 79212,
-      "overlap": false,
-      "utterance_id": "7691-293948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-293948.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.749864507325164,
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-      "duration": 3.2501354926748363,
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-      "utterance_id": "534-123059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-123059.flac |",
-      "real_speaker_id": "534",
-      "position_frames": 71337
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
-      "duration": 2.111947636245398,
-      "start_time": 24.372439555616815
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/534/laugh/0045.wav",
-      "duration": 1.16863900213511,
-      "start_time": 12.712671132789353,
-      "speaker_id": "534"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032099.json b/conversations/conv_032099.json
deleted file mode 100644
index f221f906753b44ea7f68eef6ded0c361d051307b..0000000000000000000000000000000000000000
--- a/conversations/conv_032099.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.393611400683081,
-      "duration": 4.393611400683081,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4313-16007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-16007.flac |",
-      "real_speaker_id": "4313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.3487427348275425,
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-      "duration": 6.433685098563973,
-      "start_frame": 85579,
-      "duration_frames": 102938,
-      "overlap": false,
-      "utterance_id": "5606-54666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54666.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.368486635564777,
-      "end_time": 16.162272255915312,
-      "duration": 3.7937856203505333,
-      "start_frame": 197895,
-      "duration_frames": 60700,
-      "overlap": false,
-      "utterance_id": "369-125882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.664674323136545,
-      "end_time": 20.638508688182657,
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-      "overlap": false,
-      "utterance_id": "4313-9937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-9937.flac |",
-      "real_speaker_id": "4313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.070211662258714,
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-      "duration_frames": 83739,
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-      "utterance_id": "5606-54667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.78612165882424,
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-      "start_frame": 412577,
-      "duration_frames": 60809,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 60700
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.616607960288608,
-      "end_time": 32.0,
-      "duration": 1.3833920397113921,
-      "start_frame": 489865,
-      "duration_frames": 22134,
-      "overlap": false,
-      "utterance_id": "369-125882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 121509
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_0.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4313/cough/0053.wav",
-      "duration": 0.4464503234358203,
-      "start_time": 0,
-      "speaker_id": "4313"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/369/laugh/0057.wav",
-      "duration": 0.5255343766603933,
-      "start_time": 14.190854088876849,
-      "speaker_id": "369"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5606/cough/0094.wav",
-      "duration": 1.4760765481304234,
-      "start_time": 26.48033718125282,
-      "speaker_id": "5606"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/369/cough/0050.wav",
-      "duration": 0.38575751553902665,
-      "start_time": 30.168088423567102,
-      "speaker_id": "369"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032102.json b/conversations/conv_032102.json
deleted file mode 100644
index 5a6d1bd9e5102d95f38a7c9bc3113c1a69e1aebf..0000000000000000000000000000000000000000
--- a/conversations/conv_032102.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.449595794669058,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6372714454340684,
-      "duration": 3.6372714454340684,
-      "start_frame": 0,
-      "duration_frames": 58196,
-      "overlap": false,
-      "utterance_id": "294-129973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-129973.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.0019845520949024,
-      "end_time": 9.40014952563035,
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-      "real_speaker_id": "294",
-      "position_frames": 58196
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121742.flac |",
-      "real_speaker_id": "57",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.881279538831947,
-      "end_time": 31.449595794669058,
-      "duration": 4.568316255837111,
-      "start_frame": 430100,
-      "duration_frames": 73093,
-      "overlap": true,
-      "utterance_id": "57-121742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121742.flac |",
-      "real_speaker_id": "57",
-      "position_frames": 54443
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
-      "duration": 2.607468884335783,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1801/laugh/0056.wav",
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-    {
-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/294/laugh/0090.wav",
-      "duration": 0.8341631151623273,
-      "start_time": 19.808007553628055,
-      "speaker_id": "294"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 21.3776962206828,
-      "speaker_id": "57"
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-    {
-      "event_class": "laugh",
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-      "start_time": 25.57452146737143,
-      "speaker_id": "57"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032105.json b/conversations/conv_032105.json
deleted file mode 100644
index ed53ad71e900eaa991235e2b455d681f64a3fb78..0000000000000000000000000000000000000000
--- a/conversations/conv_032105.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.875738248808243,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4848-101836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-101836.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.891438173827571,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145709.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-28247.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145706.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-101836.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 65627
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "6077-56146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-56146.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-    {
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032109.json b/conversations/conv_032109.json
deleted file mode 100644
index f518914daab9f32ec0a9434a01a2336aa62a26c2..0000000000000000000000000000000000000000
--- a/conversations/conv_032109.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8747-293952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124227.flac |",
-      "real_speaker_id": "584",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 63321
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.36443779942588,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124229.flac |",
-      "real_speaker_id": "584",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8747-293952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 140538
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "start_time": 21.446375805768746,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/102/cough/0155.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.6,
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-      "speaker_id": "584"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032113.json b/conversations/conv_032113.json
deleted file mode 100644
index 970c827fa5181e32e422f21a9ea00203e63134b8..0000000000000000000000000000000000000000
--- a/conversations/conv_032113.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.14571691551045,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "start_time": 0.0,
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-      "utterance_id": "5439-31624",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31624.flac |",
-      "real_speaker_id": "5439",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "5439-31625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31625.flac |",
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-    {
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "5439"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7327/laugh/0143.wav",
-      "duration": 1.088908303521915,
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-      "speaker_id": "7327"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7327/cough/0033.wav",
-      "duration": 0.88,
-      "start_time": 5.732696287811026,
-      "speaker_id": "7327"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7327/laugh/0100.wav",
-      "duration": 1.70400859889282,
-      "start_time": 30.211192687510163,
-      "speaker_id": "7327"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7327/laugh/0028.wav",
-      "duration": 1.34,
-      "start_time": 30.331331291559927,
-      "speaker_id": "7327"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032114.json b/conversations/conv_032114.json
deleted file mode 100644
index e4d8ffcf2ec93efe0c139dd44a7aea18d00746ec..0000000000000000000000000000000000000000
--- a/conversations/conv_032114.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.448805346694996,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.59078210034821,
-      "duration": 5.59078210034821,
-      "start_frame": 0,
-      "duration_frames": 89452,
-      "overlap": false,
-      "utterance_id": "1607-134636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-134636.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.517917080513779,
-      "end_time": 10.82449152215483,
-      "duration": 4.306574441641049,
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-      "duration_frames": 68905,
-      "overlap": false,
-      "utterance_id": "8200-278238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278238.flac |",
-      "real_speaker_id": "8200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.39659464378327,
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-      "duration_frames": 81765,
-      "overlap": true,
-      "utterance_id": "1607-149245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-149245.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.778111734284714,
-      "end_time": 21.67816001665528,
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-      "overlap": false,
-      "utterance_id": "8200-278197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278197.flac |",
-      "real_speaker_id": "8200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.298199793380054,
-      "end_time": 26.3141679255834,
-      "duration": 4.015968132203348,
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-      "duration_frames": 64255,
-      "overlap": false,
-      "utterance_id": "1607-134636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-134636.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 89452
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.648900577725477,
-      "end_time": 31.448805346694996,
-      "duration": 4.79990476896952,
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-      "duration_frames": 76798,
-      "overlap": false,
-      "utterance_id": "7046-83701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-83701.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
-      "duration": 0.2008390022675737,
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1607/laugh/0085.wav",
-      "duration": 1.4,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
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-      "speaker_id": "1607"
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-      "event_class": "cough",
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-      "speaker_id": "8200"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1607/laugh/0033.wav",
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-      "speaker_id": "1607"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7046/laugh/0085.wav",
-      "duration": 1.6,
-      "start_time": 30.4,
-      "speaker_id": "7046"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032125.json b/conversations/conv_032125.json
deleted file mode 100644
index 9d173b4f1837ce8d4da4ef1339a086f9f1688025..0000000000000000000000000000000000000000
--- a/conversations/conv_032125.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.994185674884587,
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-      "overlap": false,
-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.806164459716497,
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-      "overlap": true,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.752796116842138,
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-      "duration": 6.266688166050059,
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-      "duration_frames": 100267,
-      "overlap": false,
-      "utterance_id": "252-29350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-29350.flac |",
-      "real_speaker_id": "252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.721678707247243,
-      "end_time": 22.317153796660534,
-      "duration": 4.595475089413291,
-      "start_frame": 283546,
-      "duration_frames": 73527,
-      "overlap": true,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 86192
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.739725020859538,
-      "end_time": 29.60579122113832,
-      "duration": 5.866066200278782,
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-      "overlap": false,
-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 95906
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.058708372266214,
-      "end_time": 32.0,
-      "duration": 1.9412916277337864,
-      "start_frame": 480939,
-      "duration_frames": 31060,
-      "overlap": false,
-      "utterance_id": "252-140215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-140215.flac |",
-      "real_speaker_id": "252",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6752/cough/0113.wav",
-      "duration": 1.36,
-      "start_time": 29.759265350879055,
-      "speaker_id": "6752"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032129.json b/conversations/conv_032129.json
deleted file mode 100644
index efb4267689614e2cc2c0cc6b82932872c5fb8e8a..0000000000000000000000000000000000000000
--- a/conversations/conv_032129.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 106389,
-      "overlap": false,
-      "utterance_id": "2816-4136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-4136.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.417784157666241,
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-      "utterance_id": "6534-71091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-71091.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2816-156159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-156159.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.423185065266573,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-71091.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 111234
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.251605805176464,
-      "end_time": 28.664665749228362,
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-      "start_frame": 372025,
-      "duration_frames": 86608,
-      "overlap": false,
-      "utterance_id": "1815-9918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-9918.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.375356668630815,
-      "end_time": 32.0,
-      "duration": 2.6246433313691853,
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-      "utterance_id": "6534-71091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-71091.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 164289
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2816/laugh/0090.wav",
-      "duration": 1.08,
-      "start_time": 0,
-      "speaker_id": "2816"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6534/cough/0059.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032133.json b/conversations/conv_032133.json
deleted file mode 100644
index 096fadf309873c9fb53028e1565190b3be4d9b22..0000000000000000000000000000000000000000
--- a/conversations/conv_032133.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.047700935936426,
-      "start_frame": 0,
-      "duration_frames": 48763,
-      "overlap": false,
-      "utterance_id": "3843-176666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.29975603343941,
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-      "duration_frames": 85607,
-      "overlap": false,
-      "utterance_id": "1266-136523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-136523.flac |",
-      "real_speaker_id": "1266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.988899385576612,
-      "end_time": 12.982162745861952,
-      "duration": 3.99326336028534,
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-      "utterance_id": "1266-135837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-135837.flac |",
-      "real_speaker_id": "1266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155973.flac |",
-      "real_speaker_id": "2582",
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-    {
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-      "real_speaker_id": "3843",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155972.flac |",
-      "real_speaker_id": "2582",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "1266"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032143.json b/conversations/conv_032143.json
deleted file mode 100644
index fd9b1c3df6af2611ca9302f13a965c101a36637f..0000000000000000000000000000000000000000
--- a/conversations/conv_032143.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275216.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
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-      "real_speaker_id": "3436",
-      "position_frames": 0
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-      "real_speaker_id": "8123",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_032144.json b/conversations/conv_032144.json
deleted file mode 100644
index 540d9208baa0d2ebce0ebf6613e08ac32b0912e7..0000000000000000000000000000000000000000
--- a/conversations/conv_032144.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 81582
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-13256.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 142860
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_032148.json b/conversations/conv_032148.json
deleted file mode 100644
index 3c91ad9a0e1be77bd9e0b179938ec001aa0127ac..0000000000000000000000000000000000000000
--- a/conversations/conv_032148.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "speaker_id": "5023"
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-    {
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-      "start_time": 24.020473005319314,
-      "speaker_id": "52"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5023/laugh/0114.wav",
-      "duration": 1.52,
-      "start_time": 30.48,
-      "speaker_id": "5023"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5023/cough/0045.wav",
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-      "start_time": 31.144555408159473,
-      "speaker_id": "5023"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032152.json b/conversations/conv_032152.json
deleted file mode 100644
index 63c9dbc3872ea677cffc18c1cefcb629ad1d7d64..0000000000000000000000000000000000000000
--- a/conversations/conv_032152.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.725514501481616,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.585335234888236,
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-      "utterance_id": "8346-244446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244446.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.22308825243441,
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-      "utterance_id": "2588-160947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-160947.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.215982288906009,
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-      "overlap": true,
-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.821571520383102,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-160947.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 101211
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "end_time": 29.187270004233042,
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-      "duration_frames": 86165,
-      "overlap": false,
-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 68478
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.352221899939,
-      "end_time": 31.725514501481616,
-      "duration": 2.373292601542616,
-      "start_frame": 469635,
-      "duration_frames": 37972,
-      "overlap": true,
-      "utterance_id": "2588-160947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-160947.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 183823
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_16.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2588/laugh/0088.wav",
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-      "start_time": 23.085761101280593,
-      "speaker_id": "2588"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2588/cough/0050.wav",
-      "duration": 0.6511596884922981,
-      "start_time": 17.121600803816847,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2588/cough/0070.wav",
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-      "start_time": 28.229040679118214,
-      "speaker_id": "2588"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032155.json b/conversations/conv_032155.json
deleted file mode 100644
index 1b056789e890275c1d55c55600d0f9d01d5111b9..0000000000000000000000000000000000000000
--- a/conversations/conv_032155.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.14072689285061,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.56163920811484,
-      "duration": 5.56163920811484,
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-      "duration_frames": 88986,
-      "overlap": false,
-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.365358185060717,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.724960977318474,
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-      "overlap": false,
-      "utterance_id": "2526-156076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156076.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.559474464329018,
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-      "overlap": true,
-      "utterance_id": "3914-10089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 80431
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2526-156061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156061.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.62964918708093,
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-      "duration": 4.318973581225599,
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-      "utterance_id": "3914-10088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.105190340700197,
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-      "start_frame": 465683,
-      "duration_frames": 32568,
-      "overlap": true,
-      "utterance_id": "2526-156073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156073.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1446/laugh/0016.wav",
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-      "speaker_id": "1446"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3914/laugh/0032.wav",
-      "duration": 1.6,
-      "start_time": 8.466288295562975,
-      "speaker_id": "3914"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2526/laugh/0144.wav",
-      "duration": 1.1501740457541847,
-      "start_time": 10.388874092669372,
-      "speaker_id": "2526"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3914/laugh/0024.wav",
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-      "start_time": 18.32458012809886,
-      "speaker_id": "3914"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3914/laugh/0065.wav",
-      "duration": 1.32,
-      "start_time": 24.92779844124366,
-      "speaker_id": "3914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032164.json b/conversations/conv_032164.json
deleted file mode 100644
index 461a027b32b687bb63b0def4b1f439ab93ccd831..0000000000000000000000000000000000000000
--- a/conversations/conv_032164.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8194-89390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141642.flac |",
-      "real_speaker_id": "1535",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8194-89388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.08900100211618,
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-      "overlap": false,
-      "utterance_id": "377-129290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.30358377454844,
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-      "duration": 4.314172641071122,
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-      "utterance_id": "377-129290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 85266
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.36666104333471,
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-      "duration": 3.5305191445347757,
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-      "duration_frames": 56488,
-      "overlap": false,
-      "utterance_id": "1535-141642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141642.flac |",
-      "real_speaker_id": "1535",
-      "position_frames": 67240
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.29230698577952,
-      "end_time": 32.0,
-      "duration": 2.7076930142204816,
-      "start_frame": 468676,
-      "duration_frames": 43323,
-      "overlap": false,
-      "utterance_id": "377-129290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129290.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 154292
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "speaker_id": "377"
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 31.08,
-      "speaker_id": "377"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032168.json b/conversations/conv_032168.json
deleted file mode 100644
index 8513263b07b6901605d86c81694a831f24b823c5..0000000000000000000000000000000000000000
--- a/conversations/conv_032168.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.554058959364902,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-32403.flac |",
-      "real_speaker_id": "1618",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_032172.json b/conversations/conv_032172.json
deleted file mode 100644
index 2d5388f3683332371edaa3a23d5d83c849ab2810..0000000000000000000000000000000000000000
--- a/conversations/conv_032172.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "2156",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_032180.json b/conversations/conv_032180.json
deleted file mode 100644
index a4cc11b947a27f46413725d68ca936c9cf20f851..0000000000000000000000000000000000000000
--- a/conversations/conv_032180.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291968.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032187.json b/conversations/conv_032187.json
deleted file mode 100644
index 7943be03d43d934ad0cf1573c5a367598e33c888..0000000000000000000000000000000000000000
--- a/conversations/conv_032187.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "speaker_id": "887"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032190.json b/conversations/conv_032190.json
deleted file mode 100644
index 185ffecb632a6afa343fd37d93a381f075441321..0000000000000000000000000000000000000000
--- a/conversations/conv_032190.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.11033569622293,
-      "duration": 4.11033569622293,
-      "start_frame": 0,
-      "duration_frames": 65765,
-      "overlap": false,
-      "utterance_id": "4156-12159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12159.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.3595428327620525,
-      "end_time": 9.462657140343143,
-      "duration": 5.10311430758109,
-      "start_frame": 69752,
-      "duration_frames": 81649,
-      "overlap": false,
-      "utterance_id": "4156-12155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.927849243104529,
-      "end_time": 15.432635932548653,
-      "duration": 5.504786689444124,
-      "start_frame": 158845,
-      "duration_frames": 88076,
-      "overlap": false,
-      "utterance_id": "7189-74189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-74189.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.050412313012753,
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-      "overlap": false,
-      "utterance_id": "4156-12351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12351.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.005195380463846,
-      "end_time": 25.39119019068855,
-      "duration": 3.3859948102247057,
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-      "overlap": false,
-      "utterance_id": "7189-75356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-75356.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.86488558804244,
-      "end_time": 30.706993514056613,
-      "duration": 4.842107926014171,
-      "start_frame": 413838,
-      "duration_frames": 77473,
-      "overlap": false,
-      "utterance_id": "4156-12159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12159.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 65765
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.987878284072785,
-      "end_time": 32.0,
-      "duration": 1.012121715927215,
-      "start_frame": 495806,
-      "duration_frames": 16193,
-      "overlap": false,
-      "utterance_id": "7189-74189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-74189.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 88076
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
-      "duration": 16.41745707636157,
-      "start_time": 4.127315546746459
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
-      "duration": 0.29401360544217686,
-      "start_time": 23.7481766230728
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
-      "duration": 2.400253297097353,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7189/laugh/0032.wav",
-      "duration": 0.6047591972688249,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7189/laugh/0076.wav",
-      "duration": 0.8816799023124136,
-      "start_time": 23.454078995257404,
-      "speaker_id": "7189"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4156/laugh/0067.wav",
-      "duration": 1.4,
-      "start_time": 24.269775193404435,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7189/cough/0052.wav",
-      "duration": 0.6958984402314254,
-      "start_time": 30.220318915364636,
-      "speaker_id": "7189"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032191.json b/conversations/conv_032191.json
deleted file mode 100644
index e71c1057639a121a9eaa61d995bfe1b670673954..0000000000000000000000000000000000000000
--- a/conversations/conv_032191.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.9350042189951875,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.844420716098274,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.786331160019072,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 110960
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.59253551883203,
-      "end_time": 26.371872258468784,
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-      "utterance_id": "707-161166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-161166.flac |",
-      "real_speaker_id": "707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.140463548280096,
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-      "start_frame": 418247,
-      "duration_frames": 66018,
-      "overlap": true,
-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 187379
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.102537162217406,
-      "end_time": 32.0,
-      "duration": 0.8974628377825944,
-      "start_frame": 497640,
-      "duration_frames": 14359,
-      "overlap": false,
-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 253397
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 12.64307444919661,
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6641/cough/0060.wav",
-      "duration": 1.26603440225768,
-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/359/laugh/0044.wav",
-      "duration": 0.7084360250927015,
-      "start_time": 9.010088276858141,
-      "speaker_id": "359"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6641/cough/0136.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6641/cough/0041.wav",
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-      "start_time": 30.946123594615937,
-      "speaker_id": "6641"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032200.json b/conversations/conv_032200.json
deleted file mode 100644
index 14a4d210fbca5c91a985fe1a36d490e7d9b12543..0000000000000000000000000000000000000000
--- a/conversations/conv_032200.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_frame": 0,
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-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "594",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7636.flac |",
-      "real_speaker_id": "4345",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/594-127732.flac |",
-      "real_speaker_id": "594",
-      "position_frames": 82293
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 94075
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "594-127731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/594-127731.flac |",
-      "real_speaker_id": "594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 0.6109481546435411,
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-      "real_speaker_id": "5767",
-      "position_frames": 156407
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_032201.json b/conversations/conv_032201.json
deleted file mode 100644
index 326cce189f43e8c2e041e7c7f958467b472b056b..0000000000000000000000000000000000000000
--- a/conversations/conv_032201.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.213384364173365,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
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-      "utterance_id": "3894-6552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6552.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032216.json b/conversations/conv_032216.json
deleted file mode 100644
index 2cabaa53dac980d942b1ba9bad07cda2717e65ac..0000000000000000000000000000000000000000
--- a/conversations/conv_032216.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.669990689791323,
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-      "utterance_id": "6533-399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.407373024759808,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-12707.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-12707.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 101513
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-12707.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 166616
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 24.074272560865374,
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-      "utterance_id": "6533-399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
-      "real_speaker_id": "6533",
-      "position_frames": 106719
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.32229522971671,
-      "end_time": 32.0,
-      "duration": 2.6777047702832917,
-      "start_frame": 469156,
-      "duration_frames": 42843,
-      "overlap": false,
-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_0.wav",
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032220.json b/conversations/conv_032220.json
deleted file mode 100644
index 1bf4ebc2aef40655c299018b71a017ac87f0e261..0000000000000000000000000000000000000000
--- a/conversations/conv_032220.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "5023-41918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-41918.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.970102585171283,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128345.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
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-      "utterance_id": "5023-41918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-41918.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 95732
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-    {
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-      "start_time": 30.770555423465712,
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-      "utterance_id": "5023-1185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-1185.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-      "speaker_id": "6324"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6324/laugh/0034.wav",
-      "duration": 1.36,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 24.559168562165993,
-      "speaker_id": "5023"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032236.json b/conversations/conv_032236.json
deleted file mode 100644
index 34003737cf15864df83df5418e8d90900065fc13..0000000000000000000000000000000000000000
--- a/conversations/conv_032236.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.246033967240095,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 76026,
-      "overlap": false,
-      "utterance_id": "730-360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-360.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.070861476407305,
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "3240-131231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.92866696195231,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 80508
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "730",
-      "position_frames": 76026
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.536625053518502,
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-      "duration": 4.7094089137215915,
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-      "overlap": true,
-      "utterance_id": "3240-131232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131232.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_1.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/730/cough/0066.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3240/laugh/0070.wav",
-      "duration": 1.48,
-      "start_time": 11.098106042553615,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3240/cough/0088.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3240/laugh/0082.wav",
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-      "start_time": 29.012135401432563,
-      "speaker_id": "3240"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032241.json b/conversations/conv_032241.json
deleted file mode 100644
index 3c4a1e6855819364a6997960fb304fc9e14341f1..0000000000000000000000000000000000000000
--- a/conversations/conv_032241.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7871-107222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7871-107222.flac |",
-      "real_speaker_id": "7871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.650412441667644,
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\ No newline at end of file
diff --git a/conversations/conv_032256.json b/conversations/conv_032256.json
deleted file mode 100644
index a6da96da12cb9e601c7c07e68bef6e3db184d2d2..0000000000000000000000000000000000000000
--- a/conversations/conv_032256.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8413-284515.flac |",
-      "real_speaker_id": "8413",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 6.8564077326204576,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-126842.flac |",
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-      "utterance_id": "8587-295525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295525.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.26263979684468,
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-      "overlap": false,
-      "utterance_id": "8413-284521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8413-284521.flac |",
-      "real_speaker_id": "8413",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.922108085940753,
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-      "overlap": false,
-      "utterance_id": "8587-295524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295524.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032257.json b/conversations/conv_032257.json
deleted file mode 100644
index 288836fdb2ebdbf17c9742a2a484edd07c8acc0a..0000000000000000000000000000000000000000
--- a/conversations/conv_032257.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-123366.flac |",
-      "real_speaker_id": "470",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
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-      "utterance_id": "470-132610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-132610.flac |",
-      "real_speaker_id": "470",
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
-      "real_speaker_id": "4216",
-      "position_frames": 54522
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 89364
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-    {
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-    {
-      "event_class": "cough",
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-      "duration": 1.4350915447080483,
-      "start_time": 17.94063015859676,
-      "speaker_id": "2026"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032261.json b/conversations/conv_032261.json
deleted file mode 100644
index 6a079ab8c2e2c1c58ed241bec0f8631fbc7ef669..0000000000000000000000000000000000000000
--- a/conversations/conv_032261.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6415-116629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-116629.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4836-26485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.582010001220084,
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-      "utterance_id": "5985-300208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-300208.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6415-111615",
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-      "real_speaker_id": "6415",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4836-26485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4836-26485.flac |",
-      "real_speaker_id": "4836",
-      "position_frames": 69948
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_032277.json b/conversations/conv_032277.json
deleted file mode 100644
index d59d4adb87d672eea616f2dee6f4d0fc3a16b56f..0000000000000000000000000000000000000000
--- a/conversations/conv_032277.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-18533.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 79306
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_15.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4495/laugh/0099.wav",
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-      "start_time": 0,
-      "speaker_id": "4495"
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032282.json b/conversations/conv_032282.json
deleted file mode 100644
index d1b968b55fcb5230adc128e451d5b7a84bf5fa36..0000000000000000000000000000000000000000
--- a/conversations/conv_032282.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1337-156963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-156963.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
-      "real_speaker_id": "258",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-121528.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-165435.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-10673.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-165435.flac |",
-      "real_speaker_id": "3554",
-      "position_frames": 60360
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "1337-10674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-10674.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032285.json b/conversations/conv_032285.json
deleted file mode 100644
index ecd01181dfda6ebc16a3e4b68d4e0c6554de8cb7..0000000000000000000000000000000000000000
--- a/conversations/conv_032285.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3228-4690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-23246.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-88353.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 0
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-123319.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.214180516261465,
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-      "overlap": false,
-      "utterance_id": "3228-4690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 50127
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "start_time": 10.183887668224422,
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_032293.json b/conversations/conv_032293.json
deleted file mode 100644
index e3bb3ff1136bd5d67dc0c76757d69ea4046e630f..0000000000000000000000000000000000000000
--- a/conversations/conv_032293.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.264899357691668,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-268287.flac |",
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-    {
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-      "segment_id": "seg0002",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_032294.json b/conversations/conv_032294.json
deleted file mode 100644
index ce8dbd10f105f3f3c28b7fc6aeba76f853418a9a..0000000000000000000000000000000000000000
--- a/conversations/conv_032294.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 0
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-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
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-      "start_time": 11.757782441659367,
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-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 72923
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.226354942297437,
-      "end_time": 21.85144233224254,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 88206
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125272.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 178207
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-  "background_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_032298.json b/conversations/conv_032298.json
deleted file mode 100644
index 0f079bf0b7e0e537a7b95c77e874c0b2821ef802..0000000000000000000000000000000000000000
--- a/conversations/conv_032298.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5164",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132272.flac |",
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "5164-19211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-19211.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
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-      "real_speaker_id": "2007",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_032304.json b/conversations/conv_032304.json
deleted file mode 100644
index 130d27c6dd103b00356f11001311f47b0eb21c65..0000000000000000000000000000000000000000
--- a/conversations/conv_032304.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3728",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032308.json b/conversations/conv_032308.json
deleted file mode 100644
index 5a9102aa51b3adb2f6a0212adf116646ebbcff33..0000000000000000000000000000000000000000
--- a/conversations/conv_032308.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": "6082"
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-      "speaker_id": "1826"
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-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 21.046598513947487,
-      "speaker_id": "797"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032312.json b/conversations/conv_032312.json
deleted file mode 100644
index c773439ee1ebd06e478188da1326f4997b718127..0000000000000000000000000000000000000000
--- a/conversations/conv_032312.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.52376810195929,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150894.flac |",
-      "real_speaker_id": "2195",
-      "position_frames": 0
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-      "utterance_id": "957-130588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.266185793975456,
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-      "overlap": false,
-      "utterance_id": "2195-150901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150901.flac |",
-      "real_speaker_id": "2195",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.894106633878184,
-      "end_time": 26.085336871809687,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 64074
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.90123939588147,
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-      "utterance_id": "957-130588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 89044
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "duration": 1.0421282579718105,
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-      "speaker_id": "780"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032313.json b/conversations/conv_032313.json
deleted file mode 100644
index 0890611e9e8887048a672758d2b80b84c4ffbbcf..0000000000000000000000000000000000000000
--- a/conversations/conv_032313.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.628972884246338,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-9918.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1815-143382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143382.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.01725079769802,
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-      "overlap": false,
-      "utterance_id": "1815-143388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143388.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.041575275353143,
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-      "utterance_id": "1815-143381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143381.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1815/laugh/0057.wav",
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-      "duration": 1.1,
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-      "event_class": "cough",
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-      "duration": 1.4,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032324.json b/conversations/conv_032324.json
deleted file mode 100644
index a37439b97cb1ade4bcfa2c1d03e705db430bffe6..0000000000000000000000000000000000000000
--- a/conversations/conv_032324.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-14358.flac |",
-      "real_speaker_id": "1401",
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-    {
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-      "real_speaker_id": "2740",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-141777.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.19786636086011,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-14358.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-139804.flac |",
-      "real_speaker_id": "1263",
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-      "real_speaker_id": "1401",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.95719581608646,
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-      "position_frames": 60878
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_032328.json b/conversations/conv_032328.json
deleted file mode 100644
index dff1385180052d139379880131d31c5ac3d01b8f..0000000000000000000000000000000000000000
--- a/conversations/conv_032328.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.594284134212806,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1674-142298.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "1674"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 9.548993344227421,
-      "speaker_id": "1263"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1974/cough/0124.wav",
-      "duration": 0.8909091866668577,
-      "start_time": 14.057302894113073,
-      "speaker_id": "1974"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1674/laugh/0021.wav",
-      "duration": 1.28,
-      "start_time": 25.576219810146778,
-      "speaker_id": "1674"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032332.json b/conversations/conv_032332.json
deleted file mode 100644
index 7583a0d50fd2e92e0abfdb56f622f815868e7155..0000000000000000000000000000000000000000
--- a/conversations/conv_032332.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.71745663371855,
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-      "overlap": false,
-      "utterance_id": "1924-132574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132574.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.495921263084655,
-      "end_time": 12.494196170048273,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.233618270357525,
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-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.91869955905306,
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-      "overlap": false,
-      "utterance_id": "1924-132574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132574.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 107479
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.671542190092882,
-      "end_time": 26.41718534943992,
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-      "utterance_id": "8322-276748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 79972
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.738024284030736,
-      "end_time": 30.261577358996306,
-      "duration": 3.523553074965569,
-      "start_frame": 427808,
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-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 71367
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.90242332350391,
-      "end_time": 32.0,
-      "duration": 1.0975766764960895,
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-      "utterance_id": "1924-132576",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132576.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1924/laugh/0041.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "1924"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8322/laugh/0069.wav",
-      "duration": 0.8759613123526053,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 30.475239751208797,
-      "speaker_id": "2127"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1924"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032339.json b/conversations/conv_032339.json
deleted file mode 100644
index fb333ae5c25131adf7929bd3d52f45bbec7f5e16..0000000000000000000000000000000000000000
--- a/conversations/conv_032339.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.767503878657966,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6126-10992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6126-10992.flac |",
-      "real_speaker_id": "6126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 2.570072569733582,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.515704186619216,
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-      "utterance_id": "6126-10992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6126-10992.flac |",
-      "real_speaker_id": "6126",
-      "position_frames": 51196
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.346309300044602,
-      "end_time": 20.54715286704653,
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-      "duration_frames": 67213,
-      "overlap": true,
-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 92364
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.39386010591775,
-      "end_time": 27.706689708948442,
-      "duration": 6.312829603030694,
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-      "overlap": false,
-      "utterance_id": "1734-142311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.9079109066911,
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-      "overlap": false,
-      "utterance_id": "8015-112691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112691.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "6126"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6126/cough/0047.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8015/laugh/0012.wav",
-      "duration": 1.7860820739836365,
-      "start_time": 14.262795739284837,
-      "speaker_id": "8015"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032344.json b/conversations/conv_032344.json
deleted file mode 100644
index 787440de53192b6986b981b6dc7014bfe62038f4..0000000000000000000000000000000000000000
--- a/conversations/conv_032344.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.099332731570581,
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-      "overlap": false,
-      "utterance_id": "17-362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8498-287358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287358.flac |",
-      "real_speaker_id": "8498",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.483991464113974,
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-      "duration_frames": 88827,
-      "overlap": false,
-      "utterance_id": "1001-134708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.452443747930047,
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-      "overlap": false,
-      "utterance_id": "17-363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.36396584051964,
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-      "utterance_id": "8498-287357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287357.flac |",
-      "real_speaker_id": "8498",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 9.515503000074814,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032345.json b/conversations/conv_032345.json
deleted file mode 100644
index f5087a0e52b3ed78a4939d4c4f9cf2e03f4a4e80..0000000000000000000000000000000000000000
--- a/conversations/conv_032345.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.715440204742194,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.8367773676618175,
-      "duration": 3.8367773676618175,
-      "start_frame": 0,
-      "duration_frames": 61388,
-      "overlap": false,
-      "utterance_id": "38-121024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/38-121024.flac |",
-      "real_speaker_id": "38",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.621029415485258,
-      "end_time": 9.86463150065376,
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-      "duration_frames": 83897,
-      "overlap": false,
-      "utterance_id": "7392-105664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-105664.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.367724530408097,
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-      "duration": 5.484753134816514,
-      "start_frame": 165883,
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-      "overlap": false,
-      "utterance_id": "7392-105672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-105672.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "position_frames": 61388
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "38",
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\ No newline at end of file
diff --git a/conversations/conv_032349.json b/conversations/conv_032349.json
deleted file mode 100644
index b757f3b3afccf5a227f86ed1f371a2a2f55fc606..0000000000000000000000000000000000000000
--- a/conversations/conv_032349.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3389-130127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-130127.flac |",
-      "real_speaker_id": "3389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.685507502699218,
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-      "real_speaker_id": "8394",
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.173311312201285,
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-      "utterance_id": "3389-13250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-13250.flac |",
-      "real_speaker_id": "3389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.85597375383918,
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-      "overlap": true,
-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 84352
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.3744638753181,
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-      "duration": 1.6255361246819007,
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-      "utterance_id": "2046-178027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-178027.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
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-      "event_class": "cough",
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-      "speaker_id": "2046"
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\ No newline at end of file
diff --git a/conversations/conv_032353.json b/conversations/conv_032353.json
deleted file mode 100644
index ac22e617a14fcf213536862a4cb75b8ff652a723..0000000000000000000000000000000000000000
--- a/conversations/conv_032353.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278849.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 74720
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "6788-92420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-92420.flac |",
-      "real_speaker_id": "6788",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 3.2842487334328716,
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-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 142887
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6323/cough/0075.wav",
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-      "speaker_id": "6323"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032365.json b/conversations/conv_032365.json
deleted file mode 100644
index 0b1ef13b8d2b144f842e4a311d65e28262d62185..0000000000000000000000000000000000000000
--- a/conversations/conv_032365.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.04407803333742,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
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-      "segment_id": "seg0002",
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-      "utterance_id": "737-123441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.82214624531879,
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-      "duration_frames": 61749,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 61297
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.13324457028456,
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-      "real_speaker_id": "3148",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.101032732387225,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 64761
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/737/laugh/0000.wav",
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-      "start_time": 0,
-      "speaker_id": "737"
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/737/cough/0015.wav",
-      "duration": 0.5564404738170365,
-      "start_time": 26.46688698952515,
-      "speaker_id": "737"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032369.json b/conversations/conv_032369.json
deleted file mode 100644
index e1b2f055a056d65d95267712f91230de356898d8..0000000000000000000000000000000000000000
--- a/conversations/conv_032369.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3656-168618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168618.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "26-495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "5825-50883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-50883.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 94459
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_032373.json b/conversations/conv_032373.json
deleted file mode 100644
index 0c185a1e413e5ce163bfa2544f44c9a9b69e883f..0000000000000000000000000000000000000000
--- a/conversations/conv_032373.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.607925504772474,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27767.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 0
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-      "start_time": 6.197799019967574,
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-      "utterance_id": "359-128761",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-133630.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 22.14258723715757,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27767.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 154775
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "359-128761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 108150
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
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-      "start_time": 0,
-      "speaker_id": "4965"
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032378.json b/conversations/conv_032378.json
deleted file mode 100644
index 75dd3dcadf81d9ad5512779a8310f14b13a2009b..0000000000000000000000000000000000000000
--- a/conversations/conv_032378.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.59593041976552,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5077-38108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38108.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4438-52195.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38108.flac |",
-      "real_speaker_id": "5077",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 51041
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5077-38105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38105.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "5077"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032381.json b/conversations/conv_032381.json
deleted file mode 100644
index 30f35995ce35c8a52c19e7176203a9b6ff3848c0..0000000000000000000000000000000000000000
--- a/conversations/conv_032381.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.993511576001498,
-      "duration": 5.993511576001498,
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-      "overlap": false,
-      "utterance_id": "8392-285237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.09658061014017,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-122444.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8392",
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-125860.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.198770307914078,
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-      "duration": 5.801229692085922,
-      "start_frame": 419180,
-      "duration_frames": 92819,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-122444.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 59308
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "duration": 1.14,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
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-    {
-      "event_class": "cough",
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-      "start_time": 18.066111718637664,
-      "speaker_id": "8392"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032386.json b/conversations/conv_032386.json
deleted file mode 100644
index afc414329d4cd91f12b95607e2070ba65577e720..0000000000000000000000000000000000000000
--- a/conversations/conv_032386.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
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-      "real_speaker_id": "5968",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 17.906502466455787,
-      "speaker_id": "5968"
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_032390.json b/conversations/conv_032390.json
deleted file mode 100644
index 92c9ba0b4450982b9677413299d600136434d77e..0000000000000000000000000000000000000000
--- a/conversations/conv_032390.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.900802363920157,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "542-125351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125351.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.87650657061892,
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-      "utterance_id": "4973-24515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24515.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "542-125348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125348.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.86125256522822,
-      "end_time": 25.60801370485898,
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-      "overlap": false,
-      "utterance_id": "4973-24514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24514.flac |",
-      "real_speaker_id": "4973",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125348.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 86533
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "542"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032397.json b/conversations/conv_032397.json
deleted file mode 100644
index a50c4d9f28aa4d8a0a2121451160ef9b4615141b..0000000000000000000000000000000000000000
--- a/conversations/conv_032397.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5405-121045.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-29083.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5405-19212.flac |",
-      "real_speaker_id": "5405",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.30895116398662,
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-      "overlap": false,
-      "utterance_id": "4423-29084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-29084.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.74730849111416,
-      "end_time": 32.0,
-      "duration": 1.2526915088858388,
-      "start_frame": 491956,
-      "duration_frames": 20043,
-      "overlap": false,
-      "utterance_id": "1595-138031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-      "speaker_id": "1595"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032401.json b/conversations/conv_032401.json
deleted file mode 100644
index 438585b72c75b126e0428c5a499aa257682bcfd6..0000000000000000000000000000000000000000
--- a/conversations/conv_032401.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.297139296698539,
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-      "duration_frames": 83636,
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-      "utterance_id": "6081-41997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-41997.flac |",
-      "real_speaker_id": "6081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1772-135621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.56047736415249,
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-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 78485
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.832956835868185,
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-      "utterance_id": "6081-42010",
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-      "real_speaker_id": "6081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.387514120841388,
-      "end_time": 32.0,
-      "duration": 2.612485879158612,
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-      "duration_frames": 41799,
-      "overlap": false,
-      "utterance_id": "1772-135621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
-      "position_frames": 77295
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-    {
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-      "speaker_id": "1772"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6081/laugh/0120.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1772/laugh/0073.wav",
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-      "start_time": 29.821014758279528,
-      "speaker_id": "1772"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032406.json b/conversations/conv_032406.json
deleted file mode 100644
index b7c80b3d27faa6e846343cde971d8cdabfaf2abe..0000000000000000000000000000000000000000
--- a/conversations/conv_032406.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.488032959289582,
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.880084134373995,
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-      "utterance_id": "8295-281339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-281339.flac |",
-      "real_speaker_id": "8295",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.896681853448353,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-281321.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.619090916468345,
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-      "utterance_id": "7447-91186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91186.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 142380
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
-      "duration": 0.2580952380952381,
-      "start_time": 24.663474465856375
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
-      "duration": 1.094845556400502,
-      "start_time": 13.55181688377787
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8295/laugh/0102.wav",
-      "duration": 0.5449102734339836,
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-      "event_class": "cough",
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-      "speaker_id": "1298"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7447/laugh/0070.wav",
-      "duration": 1.3775794210625387,
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-      "duration": 1.24,
-      "start_time": 19.052067138923846,
-      "speaker_id": "7447"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8295/cough/0006.wav",
-      "duration": 0.3545744712315981,
-      "start_time": 31.328078959347362,
-      "speaker_id": "8295"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7447/laugh/0111.wav",
-      "duration": 1.2235623806915399,
-      "start_time": 30.77643761930846,
-      "speaker_id": "7447"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032410.json b/conversations/conv_032410.json
deleted file mode 100644
index 7a7f75b611f0dd891f39829d3d1e8e4a062f7d85..0000000000000000000000000000000000000000
--- a/conversations/conv_032410.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.672077684958168,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.624073730836989,
-      "duration": 6.624073730836989,
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-      "overlap": false,
-      "utterance_id": "5622-41172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-41172.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.411929430509151,
-      "end_time": 11.622432842269157,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7636.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "5622-44586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-44586.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "7923-258989",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-258989.flac |",
-      "real_speaker_id": "7923",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.11369808648925,
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-      "duration": 4.5583795984689175,
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-      "overlap": true,
-      "utterance_id": "5622-41172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-41172.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 105985
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "duration": 1.36,
-      "start_time": 0,
-      "speaker_id": "5622"
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-    {
-      "event_class": "cough",
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-      "duration": 1.2,
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-      "speaker_id": "4345"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032417.json b/conversations/conv_032417.json
deleted file mode 100644
index 0ec0f2c7cae9745e278bd8dd213b2c184a1857db..0000000000000000000000000000000000000000
--- a/conversations/conv_032417.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "end_time": 6.3488056459408675,
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-      "overlap": false,
-      "utterance_id": "3607-135982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-135982.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "2182-181183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
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-      "overlap": false,
-      "utterance_id": "3607-29116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-29116.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.978309795877966,
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-      "utterance_id": "2182-150130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.475387590347,
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-      "duration_frames": 77296,
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-      "utterance_id": "3607-29116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-29116.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 48744
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.451814025703577,
-      "end_time": 32.0,
-      "duration": 3.5481859742964232,
-      "start_frame": 455229,
-      "duration_frames": 56770,
-      "overlap": false,
-      "utterance_id": "2182-181173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181173.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  ],
-  "foreground_events": [
-    {
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3607/cough/0019.wav",
-      "duration": 1.16,
-      "start_time": 6.4785482666959,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3607/laugh/0072.wav",
-      "duration": 1.48,
-      "start_time": 23.993913642039022,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3607/cough/0069.wav",
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-      "start_time": 28.30994294577524,
-      "speaker_id": "3607"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032426.json b/conversations/conv_032426.json
deleted file mode 100644
index b2e9869cb5ae4ce33847773566b25c12cdfe1a10..0000000000000000000000000000000000000000
--- a/conversations/conv_032426.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.015727760029352,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4640-19189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19189.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.151709215699239,
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-      "utterance_id": "2541-159352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-159352.flac |",
-      "real_speaker_id": "2541",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "4640-19187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19187.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19187.flac |",
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-    {
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_032430.json b/conversations/conv_032430.json
deleted file mode 100644
index 5bead579318c005b396a70037a7a2265aafeb1f7..0000000000000000000000000000000000000000
--- a/conversations/conv_032430.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123860.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123860.flac |",
-      "real_speaker_id": "445",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182315.flac |",
-      "real_speaker_id": "3857",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123860.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 149691
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182315.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 64114
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_032440.json b/conversations/conv_032440.json
deleted file mode 100644
index 36616696dc5237b98b67e9ba9b1229197ab7adcb..0000000000000000000000000000000000000000
--- a/conversations/conv_032440.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1012-133424.flac |",
-      "real_speaker_id": "1012",
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-      "real_speaker_id": "3703",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.613372492452246,
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-      "real_speaker_id": "1012",
-      "position_frames": 75793
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-}
\ No newline at end of file
diff --git a/conversations/conv_032447.json b/conversations/conv_032447.json
deleted file mode 100644
index 87b053b7c68c5459f504e78f7cf29c4de3210025..0000000000000000000000000000000000000000
--- a/conversations/conv_032447.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.62728069352589,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73958.flac |",
-      "real_speaker_id": "4434",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-53254.flac |",
-      "real_speaker_id": "6749",
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-      "utterance_id": "3657-19115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-19115.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 20.285933629161885,
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-      "real_speaker_id": "4434",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "4434-73958",
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\ No newline at end of file
diff --git a/conversations/conv_032451.json b/conversations/conv_032451.json
deleted file mode 100644
index 1ed50b6c6ca6086d5842063513d07cd86777c482..0000000000000000000000000000000000000000
--- a/conversations/conv_032451.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7059-77900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77900.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7059-77897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77897.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77900.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 69760
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.672090074887226,
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-      "duration": 1.327909925112774,
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-      "duration_frames": 21246,
-      "overlap": false,
-      "utterance_id": "7059-77897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77897.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 97408
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-      "event_class": "Dishes",
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-      "duration": 1.16,
-      "start_time": 22.581902088046693,
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-      "duration": 0.6850690354990759,
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-      "speaker_id": "7059"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032456.json b/conversations/conv_032456.json
deleted file mode 100644
index 0a96e2990d71af54c2c87f5f71f8979b6e3a3190..0000000000000000000000000000000000000000
--- a/conversations/conv_032456.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.72039131434112,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253244.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 10.110743193508927,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253270.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
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-      "start_time": 14.308691295553922,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 75091
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "6741-253270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253270.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 64344
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.105204790636908,
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-      "utterance_id": "118-47824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.581855225587056,
-      "end_time": 32.0,
-      "duration": 0.4181447744129443,
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-      "utterance_id": "6741-253270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253270.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 151097
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-      "speaker_id": "118"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032467.json b/conversations/conv_032467.json
deleted file mode 100644
index d1baa902ce37543bf2c627984de061ab987630ed..0000000000000000000000000000000000000000
--- a/conversations/conv_032467.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.282776421808425,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-114476.flac |",
-      "real_speaker_id": "8118",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "487",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-114469.flac |",
-      "real_speaker_id": "8118",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8118-114469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-114469.flac |",
-      "real_speaker_id": "8118",
-      "position_frames": 78749
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 88270
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8118/laugh/0011.wav",
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-      "speaker_id": "8118"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032471.json b/conversations/conv_032471.json
deleted file mode 100644
index 661cdb55363c4df749fdaba7756d2f455454f50c..0000000000000000000000000000000000000000
--- a/conversations/conv_032471.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4910-14125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-14125.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
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-    {
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-43336.flac |",
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-      "real_speaker_id": "4687",
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-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 0.6026404460074986,
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-      "duration_frames": 9642,
-      "overlap": false,
-      "utterance_id": "4910-27683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-27683.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 80466
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4687/laugh/0057.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4687/laugh/0026.wav",
-      "duration": 1.22,
-      "start_time": 24.575525965967124,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9,
-      "start_time": 31.007182257566175,
-      "speaker_id": "4910"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032484.json b/conversations/conv_032484.json
deleted file mode 100644
index a87e3eb5df8373b4a13de9c7a247e5a2e7bf1059..0000000000000000000000000000000000000000
--- a/conversations/conv_032484.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.89151877845508,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2526-156098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156098.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205002.flac |",
-      "real_speaker_id": "5350",
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\ No newline at end of file
diff --git a/conversations/conv_032485.json b/conversations/conv_032485.json
deleted file mode 100644
index 5b64217668325ccd8fdf0ce44f346c74c0848330..0000000000000000000000000000000000000000
--- a/conversations/conv_032485.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4703-73029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4703-73029.flac |",
-      "real_speaker_id": "4703",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-85685.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-85685.flac |",
-      "real_speaker_id": "2929",
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-      "real_speaker_id": "4703",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 1.7367054970645874,
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-      "utterance_id": "6540-62512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-62512.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_032488.json b/conversations/conv_032488.json
deleted file mode 100644
index 780a0796b758bbed4911eb01ffb29150ec991068..0000000000000000000000000000000000000000
--- a/conversations/conv_032488.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-10988.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-10988.flac |",
-      "real_speaker_id": "5489",
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-      "utterance_id": "5489-65803",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-65803.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6388-64974.flac |",
-      "real_speaker_id": "6388",
-      "position_frames": 150915
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6388"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032492.json b/conversations/conv_032492.json
deleted file mode 100644
index 832eaccadbb65e2a781ef9acc56200a6c8883f07..0000000000000000000000000000000000000000
--- a/conversations/conv_032492.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "153-126652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126652.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138109.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
-      "real_speaker_id": "2895",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "153",
-      "position_frames": 73674
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-    {
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-      "speaker_id": 2,
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-      "real_speaker_id": "2895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.55787472049589,
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-      "utterance_id": "1291-138096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138096.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
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-  "background_events": [
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-  "foreground_events": [
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1291/laugh/0025.wav",
-      "duration": 0.98,
-      "start_time": 30.249227213701722,
-      "speaker_id": "1291"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032495.json b/conversations/conv_032495.json
deleted file mode 100644
index 6b14b390ff75ae30f3093fad0b598240570d7dec..0000000000000000000000000000000000000000
--- a/conversations/conv_032495.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_032502.json b/conversations/conv_032502.json
deleted file mode 100644
index b5b2b187c47c4b909a36ffbea7ef66ca16ba3a58..0000000000000000000000000000000000000000
--- a/conversations/conv_032502.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "5190-87791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87791.flac |",
-      "real_speaker_id": "5190",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.5414623695943037,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-143321.flac |",
-      "real_speaker_id": "207",
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.573145280721434,
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-      "utterance_id": "5190-87766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87766.flac |",
-      "real_speaker_id": "5190",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.908165359263808,
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-      "utterance_id": "2067-143535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2067-143535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 105105
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.708120216383694,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87766.flac |",
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-      "position_frames": 90575
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032505.json b/conversations/conv_032505.json
deleted file mode 100644
index 6d6130f52d98c26184d2504fc42457f8152f1fdb..0000000000000000000000000000000000000000
--- a/conversations/conv_032505.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123215.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
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-      "real_speaker_id": "112",
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-      "real_speaker_id": "5009",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 37121,
-      "overlap": false,
-      "utterance_id": "112-121727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-121727.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032513.json b/conversations/conv_032513.json
deleted file mode 100644
index 5373cd55e761cfdd477b4595fc9d4fd2873d4d9e..0000000000000000000000000000000000000000
--- a/conversations/conv_032513.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "176-123270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-123270.flac |",
-      "real_speaker_id": "176",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.534031285151726,
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-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 58030
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.460645728566938,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-123270.flac |",
-      "real_speaker_id": "176",
-      "position_frames": 95273
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.657470740458937,
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-      "utterance_id": "2312-161206",
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-      "real_speaker_id": "2312",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
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-      "position_frames": 155590
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 1.38,
-      "start_time": 26.981393052331256,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032514.json b/conversations/conv_032514.json
deleted file mode 100644
index 6315096a00c7a2a7a60e9843e073f10d9a9a9a34..0000000000000000000000000000000000000000
--- a/conversations/conv_032514.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "real_speaker_id": "5918",
-      "position_frames": 92188
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4520-1805.flac |",
-      "real_speaker_id": "4520",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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\ No newline at end of file
diff --git a/conversations/conv_032518.json b/conversations/conv_032518.json
deleted file mode 100644
index 039fafa322cc1fe0265e2b154022c1642ea07f5a..0000000000000000000000000000000000000000
--- a/conversations/conv_032518.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.254228621963826,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2526-156073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156073.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
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-      "start_time": 5.316861860284125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
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-      "real_speaker_id": "2051",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156061.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 53099
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_032522.json b/conversations/conv_032522.json
deleted file mode 100644
index 511e5a3e10cdcf9d63badc80b0aa85c3576aa47d..0000000000000000000000000000000000000000
--- a/conversations/conv_032522.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-707.flac |",
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-      "real_speaker_id": "4463",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032534.json b/conversations/conv_032534.json
deleted file mode 100644
index ab68cd54eff043dab53270955683dc7e5e26bae8..0000000000000000000000000000000000000000
--- a/conversations/conv_032534.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-      "speaker_id": "2127"
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-      "event_class": "cough",
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-      "duration": 1.2450645636360886,
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-      "start_time": 27.976490538426873,
-      "speaker_id": "2598"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032538.json b/conversations/conv_032538.json
deleted file mode 100644
index 448683415afdedd4d2160fdc0c25c9efcc48c415..0000000000000000000000000000000000000000
--- a/conversations/conv_032538.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8631-283727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.447863798627034,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-131332.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-249866.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "5655-46268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.827507474896407,
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-      "utterance_id": "453-131332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-131332.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 50322
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.858883662669577,
-      "end_time": 32.0,
-      "duration": 4.141116337330423,
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-      "utterance_id": "5655-46268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 99902
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.52,
-      "start_time": 21.71069940561664,
-      "speaker_id": "5655"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032543.json b/conversations/conv_032543.json
deleted file mode 100644
index 57b0d35d8fb8d9f02b86b08c06f343a4cff228d1..0000000000000000000000000000000000000000
--- a/conversations/conv_032543.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-79375.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 73769
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-79375.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 71693
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_032544.json b/conversations/conv_032544.json
deleted file mode 100644
index 68422d3cc2954ea45cfeab2be5a8ad2374f79d47..0000000000000000000000000000000000000000
--- a/conversations/conv_032544.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39913.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39913.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26947.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39913.flac |",
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-      "position_frames": 178485
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "5115",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_032552.json b/conversations/conv_032552.json
deleted file mode 100644
index 9c5dcd05631eaffdb646813555451a84949d7774..0000000000000000000000000000000000000000
--- a/conversations/conv_032552.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7073-92170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-92170.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121148.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26951.flac |",
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-      "event_class": "Dog",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7073/laugh/0100.wav",
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-      "event_class": "cough",
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-      "speaker_id": "7073"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/22/laugh/0084.wav",
-      "duration": 0.6011794639561171,
-      "start_time": 17.549752255273976,
-      "speaker_id": "22"
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-      "speaker_id": "7073"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032555.json b/conversations/conv_032555.json
deleted file mode 100644
index 02b03e11d11aca4727e172e7fc11c5f58a3cd95a..0000000000000000000000000000000000000000
--- a/conversations/conv_032555.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6914-119258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-119258.flac |",
-      "real_speaker_id": "6914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.3856180665549065,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105398.flac |",
-      "real_speaker_id": "3728",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "6914-284528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-284528.flac |",
-      "real_speaker_id": "6914",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105398.flac |",
-      "real_speaker_id": "3728",
-      "position_frames": 75489
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 24.769005157691154,
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-      "overlap": false,
-      "utterance_id": "8208-256239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256239.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.647685641914943,
-      "end_time": 32.0,
-      "duration": 1.3523143580850565,
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-      "duration_frames": 21637,
-      "overlap": false,
-      "utterance_id": "6914-284528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-284528.flac |",
-      "real_speaker_id": "6914",
-      "position_frames": 90462
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "3728"
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-    {
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-      "start_time": 30.129326995233413,
-      "speaker_id": "8208"
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "6914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032559.json b/conversations/conv_032559.json
deleted file mode 100644
index 1612deec00863ebe0d239713fff920dd82e76d30..0000000000000000000000000000000000000000
--- a/conversations/conv_032559.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7946-111913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-111913.flac |",
-      "real_speaker_id": "7946",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.040444618407356,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131259.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "225-131256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131256.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.68791090871336,
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-      "utterance_id": "7946-116281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-116281.flac |",
-      "real_speaker_id": "7946",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.253419461903846,
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-      "utterance_id": "669-129074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129074.flac |",
-      "real_speaker_id": "669",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.921008873299872,
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-      "duration_frames": 74709,
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-      "utterance_id": "7946-116281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-116281.flac |",
-      "real_speaker_id": "7946",
-      "position_frames": 80048
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.68820578500545,
-      "end_time": 32.0,
-      "duration": 2.311794214994549,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131276.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 0.8396032859428924,
-      "start_time": 21.255710470025946,
-      "speaker_id": "669"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032563.json b/conversations/conv_032563.json
deleted file mode 100644
index 08782890eaf27dc9c11544156b72433963af1273..0000000000000000000000000000000000000000
--- a/conversations/conv_032563.json
+++ /dev/null
@@ -1,101 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.503407753152402,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-55211.flac |",
-      "real_speaker_id": "6000",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-55211.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 89955
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4520-38484.flac |",
-      "real_speaker_id": "4520",
-      "position_frames": 65615
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4520-1805.flac |",
-      "real_speaker_id": "4520",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-    {
-      "event_class": "Dog",
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-      "duration": 0.23598639455782314,
-      "start_time": 2.0728435073904827
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_032575.json b/conversations/conv_032575.json
deleted file mode 100644
index 5bfccb169232c58b0d7962b7dbf24627414c21e0..0000000000000000000000000000000000000000
--- a/conversations/conv_032575.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "7247-77778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-77778.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145083.flac |",
-      "real_speaker_id": "1845",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-94108.flac |",
-      "real_speaker_id": "7247",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7339-86765.flac |",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145088.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-101864.flac |",
-      "real_speaker_id": "7247",
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-  "background_events": [
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-      "event_class": "Cat",
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-      "event_class": "laugh",
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-      "speaker_id": "7247"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032578.json b/conversations/conv_032578.json
deleted file mode 100644
index 561d04592e1bfd9674741182797df54576771886..0000000000000000000000000000000000000000
--- a/conversations/conv_032578.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6821-74180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-74180.flac |",
-      "real_speaker_id": "6821",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-60547.flac |",
-      "real_speaker_id": "6625",
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-      "overlap": true,
-      "utterance_id": "6821-74179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-74179.flac |",
-      "real_speaker_id": "6821",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.90881134022179,
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-      "utterance_id": "6625-39674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-39674.flac |",
-      "real_speaker_id": "6625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.97325260591309,
-      "end_time": 28.205951301314986,
-      "duration": 4.232698695401898,
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-      "overlap": false,
-      "utterance_id": "6821-276753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-276753.flac |",
-      "real_speaker_id": "6821",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.384623491559026,
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-      "duration": 3.615376508440974,
-      "start_frame": 454153,
-      "duration_frames": 57846,
-      "overlap": false,
-      "utterance_id": "6821-276753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-276753.flac |",
-      "real_speaker_id": "6821",
-      "position_frames": 67723
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032579.json b/conversations/conv_032579.json
deleted file mode 100644
index 84c6b5b64904f5b1f8f406a3cda79fbbb29ba0b3..0000000000000000000000000000000000000000
--- a/conversations/conv_032579.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6402-105212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105212.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
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-      "utterance_id": "3896-134415",
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-      "real_speaker_id": "3896",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 51932
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105212.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 66679
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-      "segment_id": "seg0005",
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-      "utterance_id": "3896-134415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3896-134415.flac |",
-      "real_speaker_id": "3896",
-      "position_frames": 68213
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032580.json b/conversations/conv_032580.json
deleted file mode 100644
index a02507f355e3f90bf5beef3828557340881d9e1b..0000000000000000000000000000000000000000
--- a/conversations/conv_032580.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.643944231056141,
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-      "utterance_id": "2588-160947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-160947.flac |",
-      "real_speaker_id": "2588",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 87172
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.91645608816064,
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-      "utterance_id": "2588-160947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-160947.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 71321
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.43040171320282,
-      "end_time": 28.79441546473568,
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-      "duration_frames": 85824,
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-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 176846
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2588-11081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-11081.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_032596.json b/conversations/conv_032596.json
deleted file mode 100644
index 6352c7b35d13034fdd44c18a279eef92e2af4e0a..0000000000000000000000000000000000000000
--- a/conversations/conv_032596.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.475663461443034,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.548186257686744,
-      "duration": 4.548186257686744,
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-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.873309274268099,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2552-132097.flac |",
-      "real_speaker_id": "2552",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.639564554592,
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-      "duration": 6.161225663549849,
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-      "utterance_id": "337-126286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/337-126286.flac |",
-      "real_speaker_id": "337",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.898541283187459,
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-      "utterance_id": "337-123033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/337-123033.flac |",
-      "real_speaker_id": "337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.718712345644075,
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-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 72770
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.079515443997977,
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-      "utterance_id": "337-123033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/337-123033.flac |",
-      "real_speaker_id": "337",
-      "position_frames": 93978
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/337/laugh/0079.wav",
-      "duration": 1.56,
-      "start_time": 14.180651382220574,
-      "speaker_id": "337"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/337/cough/0039.wav",
-      "duration": 1.0669210490451335,
-      "start_time": 14.827210269980258,
-      "speaker_id": "337"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032606.json b/conversations/conv_032606.json
deleted file mode 100644
index 488b03c7166b6cee30903854b0ae1e327ddf1fde..0000000000000000000000000000000000000000
--- a/conversations/conv_032606.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7915747877970887,
-      "duration": 3.7915747877970887,
-      "start_frame": 0,
-      "duration_frames": 60665,
-      "overlap": false,
-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.598832202429825,
-      "end_time": 10.16497007990004,
-      "duration": 5.566137877470216,
-      "start_frame": 73581,
-      "duration_frames": 89058,
-      "overlap": false,
-      "utterance_id": "587-41619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41619.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.524772508146306,
-      "end_time": 15.646394654171395,
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-      "duration_frames": 81945,
-      "overlap": false,
-      "utterance_id": "587-41619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41619.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 89058
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.400240881561064,
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-      "duration": 4.709269711474455,
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-      "duration_frames": 75348,
-      "overlap": true,
-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 60665
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.00199841012222,
-      "end_time": 24.802758903481852,
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-      "duration_frames": 60812,
-      "overlap": false,
-      "utterance_id": "587-41619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41619.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 171003
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.753752021656606,
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-      "overlap": true,
-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 136013
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.107538689343194,
-      "end_time": 32.0,
-      "duration": 0.892461310656806,
-      "start_frame": 497720,
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-      "utterance_id": "742-128033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2348/laugh/0062.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/587/laugh/0095.wav",
-      "duration": 1.1963470147136765,
-      "start_time": 10.391165531028449,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/742/laugh/0010.wav",
-      "duration": 1.3419289515328594,
-      "start_time": 30.65807104846714,
-      "speaker_id": "742"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032607.json b/conversations/conv_032607.json
deleted file mode 100644
index e2db20a1e5bc2d47db7d4cd7cb010298d96f6829..0000000000000000000000000000000000000000
--- a/conversations/conv_032607.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.129086365310258,
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-      "duration_frames": 106227,
-      "overlap": false,
-      "utterance_id": "5975-54006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
-      "real_speaker_id": "5975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 77067
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.968186809117167,
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-      "duration": 4.541632171920852,
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-      "duration_frames": 72666,
-      "overlap": false,
-      "utterance_id": "6402-102886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-102886.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.36588998990017,
-      "end_time": 27.9585809743717,
-      "duration": 5.5926909844715285,
-      "start_frame": 357854,
-      "duration_frames": 89483,
-      "overlap": false,
-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 139136
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.822926464722688,
-      "end_time": 32.0,
-      "duration": 3.1770735352773123,
-      "start_frame": 461166,
-      "duration_frames": 50833,
-      "overlap": false,
-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 228619
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-      "start_time": 21.6124605089442
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 21.626327911415203,
-      "speaker_id": "6402"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2815/cough/0077.wav",
-      "duration": 0.9358110344915864,
-      "start_time": 28.01009663981308,
-      "speaker_id": "2815"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032611.json b/conversations/conv_032611.json
deleted file mode 100644
index 8c7e56e6e7d48eeda4baa02cd3eefb80ff2b90f4..0000000000000000000000000000000000000000
--- a/conversations/conv_032611.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19945901187794,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.425001752465816,
-      "duration": 5.425001752465816,
-      "start_frame": 0,
-      "duration_frames": 86800,
-      "overlap": false,
-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.587784799670516,
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-      "duration": 6.968281230388819,
-      "start_frame": 105404,
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-      "utterance_id": "7498-99157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99157.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.888249234820412,
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-      "duration_frames": 91426,
-      "overlap": false,
-      "utterance_id": "5133-80690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7498-99157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99157.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 111492
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3307-145145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145145.flac |",
-      "real_speaker_id": "3307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.66779091271155,
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-      "duration": 1.5316680991663922,
-      "start_frame": 474684,
-      "duration_frames": 24506,
-      "overlap": true,
-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 86800
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5133/cough/0072.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7498/laugh/0070.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7498/cough/0016.wav",
-      "duration": 0.3165893697084026,
-      "start_time": 13.605517517337354,
-      "speaker_id": "7498"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032627.json b/conversations/conv_032627.json
deleted file mode 100644
index 5bf8d109ee200059557e0309d2d65239fce67285..0000000000000000000000000000000000000000
--- a/conversations/conv_032627.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.49583014201549,
-      "duration": 5.49583014201549,
-      "start_frame": 0,
-      "duration_frames": 87933,
-      "overlap": false,
-      "utterance_id": "544-121090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.163481744285355,
-      "end_time": 10.586223057856749,
-      "duration": 5.422741313571395,
-      "start_frame": 82615,
-      "duration_frames": 86763,
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-      "utterance_id": "3983-5331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
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-      "speaker_id": 0,
-      "start_time": 18.28151024406802,
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-      "utterance_id": "544-121090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 87933
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.601622675759398,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 86763
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 100843
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/544/cough/0061.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032631.json b/conversations/conv_032631.json
deleted file mode 100644
index 188dbe5f923312a9a9e583f21397598f3dcf7e18..0000000000000000000000000000000000000000
--- a/conversations/conv_032631.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.53656496038337,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.6232996531894575,
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-      "overlap": false,
-      "utterance_id": "8295-296107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-296107.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.160916951604,
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-      "utterance_id": "3757-134142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134142.flac |",
-      "real_speaker_id": "3757",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-281339.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134141.flac |",
-      "real_speaker_id": "3757",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36048.flac |",
-      "real_speaker_id": "4824",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032646.json b/conversations/conv_032646.json
deleted file mode 100644
index a318b8f9f81d98c185ddd6c9bcac81d64b447226..0000000000000000000000000000000000000000
--- a/conversations/conv_032646.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-94500.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
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-    {
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-      "utterance_id": "7392-94500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-94500.flac |",
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-      "position_frames": 184119
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "duration": 1.0,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.42,
-      "start_time": 30.58,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "7392"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032650.json b/conversations/conv_032650.json
deleted file mode 100644
index f990fde2103f516286c8de8b961b540146ae01f9..0000000000000000000000000000000000000000
--- a/conversations/conv_032650.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-      "speaker_id": "8975"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8975/laugh/0088.wav",
-      "duration": 1.8039216865097134,
-      "start_time": 24.18055429044848,
-      "speaker_id": "8975"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032651.json b/conversations/conv_032651.json
deleted file mode 100644
index d9b217fb08ffe2be80fbd8f85ff04aa1637cc35b..0000000000000000000000000000000000000000
--- a/conversations/conv_032651.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.933158312579131,
-      "duration": 4.933158312579131,
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-      "overlap": false,
-      "utterance_id": "6032-58192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6032-58192.flac |",
-      "real_speaker_id": "6032",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.948362250244604,
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-      "duration": 4.945971318085345,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
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-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "utterance_id": "2368-157054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157054.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 17.68914251456046,
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-      "duration": 3.499596120356751,
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-      "duration_frames": 55993,
-      "overlap": true,
-      "utterance_id": "6032-56222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6032-56222.flac |",
-      "real_speaker_id": "6032",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.145860266406892,
-      "end_time": 28.51882493397065,
-      "duration": 6.372964667563755,
-      "start_frame": 354333,
-      "duration_frames": 101967,
-      "overlap": false,
-      "utterance_id": "6373-65772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 79135
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.16393180074787,
-      "end_time": 32.0,
-      "duration": 2.8360681992521286,
-      "start_frame": 466622,
-      "duration_frames": 45377,
-      "overlap": false,
-      "utterance_id": "2368-157054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157054.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 94943
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "duration": 1.2,
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2368/laugh/0098.wav",
-      "duration": 1.08,
-      "start_time": 15.978638711748568,
-      "speaker_id": "2368"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032666.json b/conversations/conv_032666.json
deleted file mode 100644
index 20d12ca9de9eafc836ef89fdf66d4487a22b84ba..0000000000000000000000000000000000000000
--- a/conversations/conv_032666.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.568921442422865,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-111567.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 91520
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "duration_frames": 89227,
-      "overlap": false,
-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 170551
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.360789288372295,
-      "end_time": 30.995547164738976,
-      "duration": 6.634757876366681,
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-      "overlap": false,
-      "utterance_id": "3681-96617",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-96617.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.678635449254166,
-      "end_time": 32.0,
-      "duration": 0.3213645507458338,
-      "start_frame": 506858,
-      "duration_frames": 5141,
-      "overlap": false,
-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 259778
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3681/laugh/0052.wav",
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-    },
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7215/laugh/0032.wav",
-      "duration": 0.9025916970328289,
-      "start_time": 14.188192697086041,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7215/laugh/0021.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "7215"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7215/cough/0014.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "7215"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032670.json b/conversations/conv_032670.json
deleted file mode 100644
index d51ddd15890740cc3be45d35822ca6ba3f0fc7c5..0000000000000000000000000000000000000000
--- a/conversations/conv_032670.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.164508201537528,
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-      "utterance_id": "501-125128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 69545
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.509516664038408,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 61775
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.630013532656577,
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-      "duration": 0.36998646734342344,
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-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 163630
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1370/laugh/0066.wav",
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-      "start_time": 18.315903967683536,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1370/cough/0043.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/501/cough/0044.wav",
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-      "start_time": 25.675891056775857,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032682.json b/conversations/conv_032682.json
deleted file mode 100644
index 78333e13af8d8552c455702b86ecd0c153308963..0000000000000000000000000000000000000000
--- a/conversations/conv_032682.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "36-16602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51758.flac |",
-      "real_speaker_id": "5700",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "36-16603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 85156
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51758.flac |",
-      "real_speaker_id": "5700",
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-  "paralinguistic_events": [
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-      "start_time": 2.8707953886576387,
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-}
\ No newline at end of file
diff --git a/conversations/conv_032685.json b/conversations/conv_032685.json
deleted file mode 100644
index 38f2ebc55817d8d0b4e6a4c9fda36240f66f4004..0000000000000000000000000000000000000000
--- a/conversations/conv_032685.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 79548
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-      "segment_id": "seg0002",
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-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.71849250345125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
-      "real_speaker_id": "4039",
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-    {
-      "event_class": "Frying",
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-      "start_time": 30.8,
-      "speaker_id": "4039"
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\ No newline at end of file
diff --git a/conversations/conv_032689.json b/conversations/conv_032689.json
deleted file mode 100644
index a70210b41893f2590e328c4f937954c25cd9a60e..0000000000000000000000000000000000000000
--- a/conversations/conv_032689.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7789",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-258266.flac |",
-      "real_speaker_id": "7789",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.657021361517153,
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-      "real_speaker_id": "55",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-258266.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_032693.json b/conversations/conv_032693.json
deleted file mode 100644
index 20dbfc3b2b5160e6ab95af1d599c6fcea3472903..0000000000000000000000000000000000000000
--- a/conversations/conv_032693.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_032694.json b/conversations/conv_032694.json
deleted file mode 100644
index 414182c515271c119568456b9e0acc95f0a0bb82..0000000000000000000000000000000000000000
--- a/conversations/conv_032694.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.56605424956693,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
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-    {
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-      "real_speaker_id": "1863",
-      "position_frames": 168421
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-      "start_time": 7.795708150784763
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1863/cough/0068.wav",
-      "duration": 0.9017328545388594,
-      "start_time": 0,
-      "speaker_id": "1863"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/957/laugh/0077.wav",
-      "duration": 1.16,
-      "start_time": 7.439267363837837,
-      "speaker_id": "957"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7067/cough/0032.wav",
-      "duration": 0.9387745571686599,
-      "start_time": 18.666233610516283,
-      "speaker_id": "7067"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/957/cough/0038.wav",
-      "duration": 0.3524297984666088,
-      "start_time": 18.615821351839898,
-      "speaker_id": "957"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032703.json b/conversations/conv_032703.json
deleted file mode 100644
index 7547c4a7a74de7fec786589936ea3e323525fcf4..0000000000000000000000000000000000000000
--- a/conversations/conv_032703.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.590746887321597,
-      "duration": 6.590746887321597,
-      "start_frame": 0,
-      "duration_frames": 105451,
-      "overlap": false,
-      "utterance_id": "1058-131113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.1327587206677245,
-      "end_time": 11.743067131959709,
-      "duration": 4.610308411291985,
-      "start_frame": 114124,
-      "duration_frames": 73764,
-      "overlap": false,
-      "utterance_id": "1544-41167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-41167.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.001073388055884,
-      "end_time": 17.984115835629176,
-      "duration": 4.9830424475732915,
-      "start_frame": 208017,
-      "duration_frames": 79728,
-      "overlap": true,
-      "utterance_id": "1058-131113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 105451
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.274296375313334,
-      "end_time": 23.922200724696268,
-      "duration": 4.647904349382934,
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-      "overlap": false,
-      "utterance_id": "1544-121402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-121402.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.20763237239717,
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-      "utterance_id": "1058-131113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 185179
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.051158886448956,
-      "end_time": 32.0,
-      "duration": 0.948841113551044,
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-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1058/laugh/0021.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "1058"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1058/laugh/0062.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.88,
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-      "event_class": "cough",
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-      "speaker_id": "229"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032714.json b/conversations/conv_032714.json
deleted file mode 100644
index 7febc75b4fd478ac9278758f02d6e4b4de9e8034..0000000000000000000000000000000000000000
--- a/conversations/conv_032714.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5940-54016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54016.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.824523703270349,
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-      "utterance_id": "667-158816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-158816.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.991660879869473,
-      "end_time": 19.80799940474234,
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-      "overlap": false,
-      "utterance_id": "1274-121770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121770.flac |",
-      "real_speaker_id": "1274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.610016102369915,
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-      "duration": 5.142057343908332,
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-      "duration_frames": 82272,
-      "overlap": false,
-      "utterance_id": "667-107247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.556315032989833,
-      "end_time": 32.0,
-      "duration": 4.443684967010167,
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-      "overlap": false,
-      "utterance_id": "5940-54016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54016.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 111289
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_0.wav",
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-      "event_class": "Running_water",
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-      "start_time": 11.331365502317745
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_032715.json b/conversations/conv_032715.json
deleted file mode 100644
index d4d30ba4c82adfe44af0c44240e9195f1dff7e9f..0000000000000000000000000000000000000000
--- a/conversations/conv_032715.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.76872029016664,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305209.flac |",
-      "real_speaker_id": "8846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.896649272326928,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-134809.flac |",
-      "real_speaker_id": "474",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7618-102372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102372.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8846-305217",
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-      "real_speaker_id": "8846",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "7618",
-      "position_frames": 51790
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "8846",
-      "position_frames": 78087
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032719.json b/conversations/conv_032719.json
deleted file mode 100644
index 5a3c8940493dc479da1beb86dc71edd6719cac72..0000000000000000000000000000000000000000
--- a/conversations/conv_032719.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.751239607501585,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4748-25901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-25901.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 8.179348167939754,
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-      "utterance_id": "7654-258963",
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-      "real_speaker_id": "7654",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7525-92915",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7654/laugh/0021.wav",
-      "duration": 1.2,
-      "start_time": 12.662217415499498,
-      "speaker_id": "7654"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7525/laugh/0060.wav",
-      "duration": 0.992138944858425,
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-      "speaker_id": "7525"
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-      "event_class": "cough",
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-      "duration": 1.1428520499379793,
-      "start_time": 26.589375793091858,
-      "speaker_id": "4748"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032723.json b/conversations/conv_032723.json
deleted file mode 100644
index 771ed97570ef47b45a1e26eba70f23006bd6e541..0000000000000000000000000000000000000000
--- a/conversations/conv_032723.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.553635984900158,
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-      "overlap": false,
-      "utterance_id": "612-121766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.472881390212904,
-      "end_time": 12.510099695502891,
-      "duration": 5.037218305289987,
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-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "612-121766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 104858
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.81362410770344,
-      "end_time": 25.76951016407455,
-      "duration": 4.95588605637111,
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-      "overlap": false,
-      "utterance_id": "3790-140725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.06384369399084,
-      "end_time": 32.0,
-      "duration": 5.93615630600916,
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-      "utterance_id": "612-121766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 213063
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/612/laugh/0091.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "612"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/laugh/0074.wav",
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-      "speaker_id": "3790"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032728.json b/conversations/conv_032728.json
deleted file mode 100644
index 381c5521c8bebcef8c61ab8dd284d627bbb614ac..0000000000000000000000000000000000000000
--- a/conversations/conv_032728.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "1646-121409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121409.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "712",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 13.291615641981808,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121408.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.92330955165617,
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-      "utterance_id": "712-123615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 82823
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.417723248902227,
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-      "overlap": false,
-      "utterance_id": "1646-121409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121409.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 102134
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.841655018685916,
-      "end_time": 32.0,
-      "duration": 1.1583449813140838,
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-      "overlap": false,
-      "utterance_id": "712-123615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 163030
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 23.11027086157055,
-      "speaker_id": "712"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032735.json b/conversations/conv_032735.json
deleted file mode 100644
index 4fd8dccce36fb276c29ffd82ca1502aea9a0c216..0000000000000000000000000000000000000000
--- a/conversations/conv_032735.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "8272-279789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123155.flac |",
-      "real_speaker_id": "608",
-      "position_frames": 0
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-      "utterance_id": "663-128990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.8117458724191,
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-      "utterance_id": "8272-279781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.09788995382559,
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-      "utterance_id": "663-128991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128991.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.478516780267224,
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-      "duration": 3.521483219732776,
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-      "overlap": false,
-      "utterance_id": "663-128990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 87981
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/663/cough/0015.wav",
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-      "speaker_id": "663"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032738.json b/conversations/conv_032738.json
deleted file mode 100644
index e0f0ed157dc5a1b56f7f465fa04341af77e9cce6..0000000000000000000000000000000000000000
--- a/conversations/conv_032738.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.260541919391944,
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-      "start_frame": 0,
-      "duration_frames": 84168,
-      "overlap": false,
-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.202843951072213,
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-      "overlap": false,
-      "utterance_id": "4352-893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-893.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "65-125860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-125860.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-10940.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "1166-14986",
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-      "real_speaker_id": "1166",
-      "position_frames": 0
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-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4352/laugh/0079.wav",
-      "duration": 1.22,
-      "start_time": 25.58055639450126,
-      "speaker_id": "4352"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032739.json b/conversations/conv_032739.json
deleted file mode 100644
index a9eb6de6638514db86f2821300293fd8b405a47e..0000000000000000000000000000000000000000
--- a/conversations/conv_032739.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_032742.json b/conversations/conv_032742.json
deleted file mode 100644
index 881ee5e8391548e8476ab587c51b32851fb0ce21..0000000000000000000000000000000000000000
--- a/conversations/conv_032742.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_032743.json b/conversations/conv_032743.json
deleted file mode 100644
index a1e459e291cc772ac12c91353fb07b93fde64a16..0000000000000000000000000000000000000000
--- a/conversations/conv_032743.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_032754.json b/conversations/conv_032754.json
deleted file mode 100644
index dd250c23704c86945967336a32e47889c38b4783..0000000000000000000000000000000000000000
--- a/conversations/conv_032754.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5918/cough/0062.wav",
-      "duration": 0.962821570480676,
-      "start_time": 12.773622266619048,
-      "speaker_id": "5918"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/453/laugh/0051.wav",
-      "duration": 1.2764982744684368,
-      "start_time": 23.33864510198898,
-      "speaker_id": "453"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/49/laugh/0098.wav",
-      "duration": 1.1018556961560186,
-      "start_time": 26.9324120982777,
-      "speaker_id": "49"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/49/cough/0059.wav",
-      "duration": 1.0231100978049332,
-      "start_time": 27.001245465678373,
-      "speaker_id": "49"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032758.json b/conversations/conv_032758.json
deleted file mode 100644
index 5c10d6fa376d43ef36f16ec9b3756248a8bbd277..0000000000000000000000000000000000000000
--- a/conversations/conv_032758.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.926827285445675,
-      "duration": 5.926827285445675,
-      "start_frame": 0,
-      "duration_frames": 94829,
-      "overlap": false,
-      "utterance_id": "1365-134830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134830.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.194998646903738,
-      "end_time": 9.22027711406735,
-      "duration": 3.025278467163613,
-      "start_frame": 99119,
-      "duration_frames": 48404,
-      "overlap": false,
-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.358746431677146,
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-      "duration_frames": 71418,
-      "overlap": false,
-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 48404
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.533984061016678,
-      "end_time": 21.667613836654457,
-      "duration": 6.133629775637779,
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-      "duration_frames": 98138,
-      "overlap": false,
-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 119822
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.613286636899662,
-      "end_time": 26.855949038187887,
-      "duration": 4.242662401288227,
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-      "duration_frames": 67882,
-      "overlap": false,
-      "utterance_id": "1365-134830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134830.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 94829
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.2016161289331,
-      "end_time": 32.0,
-      "duration": 4.7983838710669,
-      "start_frame": 435225,
-      "duration_frames": 76774,
-      "overlap": false,
-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 217960
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
-      "duration": 13.643236063281332,
-      "start_time": 0.9599225635908752
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.297355728817791,
-      "start_time": 6.8864445743388965
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
-      "duration": 1.3814451934036933,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1365/cough/0098.wav",
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-      "speaker_id": "1365"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1444/laugh/0003.wav",
-      "duration": 1.5838453719743053,
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-      "duration": 0.36216045929983354,
-      "start_time": 9.334916245911248,
-      "speaker_id": "1444"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1365/cough/0104.wav",
-      "duration": 0.45429058928884863,
-      "start_time": 23.314487919717642,
-      "speaker_id": "1365"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1444/laugh/0052.wav",
-      "duration": 1.5,
-      "start_time": 30.5,
-      "speaker_id": "1444"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032762.json b/conversations/conv_032762.json
deleted file mode 100644
index ab362804d34ba595b61adf9e1da17e45924f9662..0000000000000000000000000000000000000000
--- a/conversations/conv_032762.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4273-188158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188158.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 6.648856261075226,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
-      "real_speaker_id": "614",
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-      "segment_id": "seg0002",
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-      "utterance_id": "544-121090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.20006244404749,
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-      "utterance_id": "614-161065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-161065.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.97484547408871,
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-      "utterance_id": "544-121090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 89397
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.41106956577362,
-      "end_time": 32.0,
-      "duration": 1.5889304342263806,
-      "start_frame": 486577,
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-      "overlap": false,
-      "utterance_id": "4273-188164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188164.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/614/laugh/0011.wav",
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-      "speaker_id": "614"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/614/cough/0099.wav",
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-    {
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-      "duration": 1.12,
-      "start_time": 12.093083762309886,
-      "speaker_id": "544"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 22.51527770530075,
-      "speaker_id": "614"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.76,
-      "start_time": 30.24,
-      "speaker_id": "4273"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032769.json b/conversations/conv_032769.json
deleted file mode 100644
index 0e32633c0331c53f59189d30015cfe283df34e92..0000000000000000000000000000000000000000
--- a/conversations/conv_032769.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5489-10988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-10988.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 0
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-      "utterance_id": "5489-65803",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-92420.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.185127772372546,
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-      "position_frames": 105021
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2374-155651",
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-      "real_speaker_id": "2374",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_032774.json b/conversations/conv_032774.json
deleted file mode 100644
index 5e7a74454d5946ac3cdf64759ad70995642d94a8..0000000000000000000000000000000000000000
--- a/conversations/conv_032774.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 30.98743520874429,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "92-204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-204.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
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-      "real_speaker_id": "92",
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-      "real_speaker_id": "5459",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-204.flac |",
-      "real_speaker_id": "92",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_032778.json b/conversations/conv_032778.json
deleted file mode 100644
index 9287052b57e227f547aa034d32d71b1e51b1f7f8..0000000000000000000000000000000000000000
--- a/conversations/conv_032778.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 7.032610980934385,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7480-93348.flac |",
-      "real_speaker_id": "7480",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 104249
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "7491-114605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-114605.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-110524.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_032781.json b/conversations/conv_032781.json
deleted file mode 100644
index 9b055f08d7fe804d6fad89c1c5c70b48157f1902..0000000000000000000000000000000000000000
--- a/conversations/conv_032781.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57156.flac |",
-      "real_speaker_id": "6075",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57156.flac |",
-      "real_speaker_id": "6075",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "81",
-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_032786.json b/conversations/conv_032786.json
deleted file mode 100644
index 8c84e216a842d65a62bcd2b5e87441c6a7f212f1..0000000000000000000000000000000000000000
--- a/conversations/conv_032786.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-153309.flac |",
-      "real_speaker_id": "3923",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-174992.flac |",
-      "real_speaker_id": "3923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032790.json b/conversations/conv_032790.json
deleted file mode 100644
index cbac74b85040008150c0632ebad46d7ce777a88e..0000000000000000000000000000000000000000
--- a/conversations/conv_032790.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.712266645372345,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1815-143381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143381.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8539.flac |",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
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-      "start_time": 0,
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-      "speaker_id": "1815"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032797.json b/conversations/conv_032797.json
deleted file mode 100644
index c5c6fafcfa800967fdcd28c0098ca06f37fc3718..0000000000000000000000000000000000000000
--- a/conversations/conv_032797.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.565408199266486,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "start_time": 0.0,
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-      "utterance_id": "2051-153962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 148719
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_6.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032801.json b/conversations/conv_032801.json
deleted file mode 100644
index 5ceda0c3486bea18b99a02a265c6713f156a0f79..0000000000000000000000000000000000000000
--- a/conversations/conv_032801.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5789",
-      "position_frames": 0
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-      "real_speaker_id": "4492",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8904.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 99347
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-      "utterance_id": "5789-70653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-70653.flac |",
-      "real_speaker_id": "5789",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-      "speaker_id": "5789"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032806.json b/conversations/conv_032806.json
deleted file mode 100644
index f522105b91b8ab7b245660ad7451dd53178600bc..0000000000000000000000000000000000000000
--- a/conversations/conv_032806.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7514",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 61672
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7514-96429",
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-      "real_speaker_id": "7514",
-      "position_frames": 154627
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1341/laugh/0010.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "start_time": 30.791122737570344,
-      "speaker_id": "7514"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032810.json b/conversations/conv_032810.json
deleted file mode 100644
index 082947d06bb0112f6c97ce2f01f96f19c164735c..0000000000000000000000000000000000000000
--- a/conversations/conv_032810.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.588497100926766,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
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-      "position_frames": 168171
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "851"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032817.json b/conversations/conv_032817.json
deleted file mode 100644
index 7a850c08bd7467d1d60809996fa55c83cc1c4790..0000000000000000000000000000000000000000
--- a/conversations/conv_032817.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.035356060550182,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
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-      "utterance_id": "8382-285236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285236.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285236.flac |",
-      "real_speaker_id": "8382",
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-      "real_speaker_id": "8425",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.88586266564573,
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-      "utterance_id": "8382-285245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285245.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285245.flac |",
-      "real_speaker_id": "8382",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032826.json b/conversations/conv_032826.json
deleted file mode 100644
index 823d4f7315a3b69067c9d2a136fe7eec2ddf4920..0000000000000000000000000000000000000000
--- a/conversations/conv_032826.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150894.flac |",
-      "real_speaker_id": "2195",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_032830.json b/conversations/conv_032830.json
deleted file mode 100644
index b7341c6ab7a4b8e7d7384ef0f3a085ab549f0f28..0000000000000000000000000000000000000000
--- a/conversations/conv_032830.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134602.flac |",
-      "real_speaker_id": "1065",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134611.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_032840.json b/conversations/conv_032840.json
deleted file mode 100644
index cfa34ed1b9d294ad36fd2a0ce6dd317975f0993d..0000000000000000000000000000000000000000
--- a/conversations/conv_032840.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.8273861145598,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "8225-274374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274374.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4481",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "3433",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-20043.flac |",
-      "real_speaker_id": "3433",
-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "speaker_id": "4481"
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-      "speaker_id": "3433"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_032847.json b/conversations/conv_032847.json
deleted file mode 100644
index f9b4b99183807e23c483d3c93500f5d641e5120e..0000000000000000000000000000000000000000
--- a/conversations/conv_032847.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7517-100442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100442.flac |",
-      "real_speaker_id": "7517",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 6.594189894059335,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110526.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7517-100429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100429.flac |",
-      "real_speaker_id": "7517",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-169444.flac |",
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-      "real_speaker_id": "7752",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100437.flac |",
-      "real_speaker_id": "7517",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_032851.json b/conversations/conv_032851.json
deleted file mode 100644
index eafb5a84f0af4e68fbb6c5581cfd5ec0e7e594da..0000000000000000000000000000000000000000
--- a/conversations/conv_032851.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "real_speaker_id": "3088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2090-147030",
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-      "real_speaker_id": "2090",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032856.json b/conversations/conv_032856.json
deleted file mode 100644
index 8963b8ea542f933e9c141dc5175c5ebed60b8e61..0000000000000000000000000000000000000000
--- a/conversations/conv_032856.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "start_time": 19.679324566532493,
-      "speaker_id": "3947"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_032867.json b/conversations/conv_032867.json
deleted file mode 100644
index 9045186f90cefb6a698c0e81263663028f864d4c..0000000000000000000000000000000000000000
--- a/conversations/conv_032867.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "413-12292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-12292.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.632386441527108,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-291444.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "413-22436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22436.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.117080844513396,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-291444.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 88332
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.043000227667687,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/56-1731.flac |",
-      "real_speaker_id": "56",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.912251067404434,
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-      "duration": 1.0877489325955665,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22436.flac |",
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-      "position_frames": 111110
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8425/laugh/0073.wav",
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-      "speaker_id": "8425"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032871.json b/conversations/conv_032871.json
deleted file mode 100644
index 6dc22eab98481bfa3ccfe12174fea3170ecc11ab..0000000000000000000000000000000000000000
--- a/conversations/conv_032871.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128310.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-123163.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 87636
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34644.flac |",
-      "real_speaker_id": "7178",
-      "position_frames": 0
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_032883.json b/conversations/conv_032883.json
deleted file mode 100644
index a3c4aa4cf078fc0e59edb95ca337aeea8a7ce85a..0000000000000000000000000000000000000000
--- a/conversations/conv_032883.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_032884.json b/conversations/conv_032884.json
deleted file mode 100644
index d82b7dacc65ada9ee80d751bab01ac481d40fd19..0000000000000000000000000000000000000000
--- a/conversations/conv_032884.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/263/cough/0029.wav",
-      "duration": 1.1196907387996762,
-      "start_time": 22.183558739136387,
-      "speaker_id": "263"
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-      "speaker_id": "6184"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_032888.json b/conversations/conv_032888.json
deleted file mode 100644
index 8e3dbaaba746c0dc5f03507d22fd92bb6c86d72c..0000000000000000000000000000000000000000
--- a/conversations/conv_032888.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "398-130093",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-130093.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "real_speaker_id": "2042",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.026516699681636,
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-      "overlap": true,
-      "utterance_id": "5375-40170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40170.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.681334866364153,
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-      "utterance_id": "5375-40162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40162.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.38578211437476,
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-      "overlap": false,
-      "utterance_id": "2042-148298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-148298.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.489932071719174,
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-      "utterance_id": "398-123602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-123602.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2042/laugh/0044.wav",
-      "duration": 1.12,
-      "start_time": 28.35916251070664,
-      "speaker_id": "2042"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032892.json b/conversations/conv_032892.json
deleted file mode 100644
index f4e0250b77f7566641b676c900be136f83800f8f..0000000000000000000000000000000000000000
--- a/conversations/conv_032892.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180289.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 81666
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.57296472904301,
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-      "utterance_id": "4020-180307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180307.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-    {
-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_032893.json b/conversations/conv_032893.json
deleted file mode 100644
index 06f6e81be6af74702ad1f9e67060bb69813f0dc9..0000000000000000000000000000000000000000
--- a/conversations/conv_032893.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-141272.flac |",
-      "real_speaker_id": "1653",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/114-129324.flac |",
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-      "utterance_id": "4948-28015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28015.flac |",
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4948-28015",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_032902.json b/conversations/conv_032902.json
deleted file mode 100644
index f9178fd587110a5b1e119767ffc98a8ea1b0f975..0000000000000000000000000000000000000000
--- a/conversations/conv_032902.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "2061-147110",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2061/laugh/0092.wav",
-      "duration": 0.88,
-      "start_time": 14.637228149997647,
-      "speaker_id": "2061"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032905.json b/conversations/conv_032905.json
deleted file mode 100644
index c2336b4ea7f708b07cc3d689dda52ac108c0c669..0000000000000000000000000000000000000000
--- a/conversations/conv_032905.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.732525644894796,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.14132615645909,
-      "duration": 4.14132615645909,
-      "start_frame": 0,
-      "duration_frames": 66261,
-      "overlap": false,
-      "utterance_id": "5583-41259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41259.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.221149175762614,
-      "end_time": 11.601412870019622,
-      "duration": 6.380263694257008,
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-      "overlap": false,
-      "utterance_id": "3567-7276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3567-7276.flac |",
-      "real_speaker_id": "3567",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.736145640022954,
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-      "duration": 6.213293892481007,
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-      "overlap": false,
-      "utterance_id": "5583-41919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41919.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.787347728939906,
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-      "duration": 5.3412468743483865,
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-      "duration_frames": 85459,
-      "overlap": false,
-      "utterance_id": "3567-7277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3567-7277.flac |",
-      "real_speaker_id": "3567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.724696367918156,
-      "end_time": 30.57636004015204,
-      "duration": 5.851663672233882,
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-      "duration_frames": 93626,
-      "overlap": false,
-      "utterance_id": "5583-41919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41919.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 99412
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.961795495325248,
-      "end_time": 31.732525644894796,
-      "duration": 0.7707301495695482,
-      "start_frame": 495388,
-      "duration_frames": 12331,
-      "overlap": true,
-      "utterance_id": "1417-1532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1532.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "duration": 1.1040811907318506,
-      "start_time": 0,
-      "speaker_id": "5583"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5583/cough/0086.wav",
-      "duration": 1.12,
-      "start_time": 10.473057006448146,
-      "speaker_id": "5583"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1417/cough/0015.wav",
-      "duration": 1.0551493155859255,
-      "start_time": 29.74184608388233,
-      "speaker_id": "1417"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032913.json b/conversations/conv_032913.json
deleted file mode 100644
index 0c3b25073e72a6b41a78a7f2a1c5fbc376316a25..0000000000000000000000000000000000000000
--- a/conversations/conv_032913.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.574476860847028,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 102924,
-      "overlap": false,
-      "utterance_id": "6402-105213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105213.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.708990029976819,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105213.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 102924
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.89906193802141,
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-      "utterance_id": "6402-102886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-102886.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.111710486274266,
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-      "utterance_id": "4057-183239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-183239.flac |",
-      "real_speaker_id": "4057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4057-11254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-11254.flac |",
-      "real_speaker_id": "4057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.603436145429608,
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-      "start_frame": 489654,
-      "duration_frames": 15536,
-      "overlap": true,
-      "utterance_id": "9023-296468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "4057"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032914.json b/conversations/conv_032914.json
deleted file mode 100644
index 4e53851cadad28c1bf11903019f0ba00d0eaf594..0000000000000000000000000000000000000000
--- a/conversations/conv_032914.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6300-39661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
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-      "real_speaker_id": "277",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39660.flac |",
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-      "real_speaker_id": "277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "1347",
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-      "duration": 1.24,
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-}
\ No newline at end of file
diff --git a/conversations/conv_032918.json b/conversations/conv_032918.json
deleted file mode 100644
index 711baf277c7358529aae5da1c1963626270add82..0000000000000000000000000000000000000000
--- a/conversations/conv_032918.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290361.flac |",
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-      "position_frames": 0
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-    {
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-    {
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-      "duration": 1.12,
-      "start_time": 6.177027412514539,
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-      "event_class": "laugh",
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-      "duration": 1.307117255723389,
-      "start_time": 17.92647412583636,
-      "speaker_id": "1448"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032922.json b/conversations/conv_032922.json
deleted file mode 100644
index 6b811c6565dcd6b2c3e2ac55869b5e617d948fa1..0000000000000000000000000000000000000000
--- a/conversations/conv_032922.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4969-58757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-58757.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.555760635121133,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 12.012548670088268,
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-      "utterance_id": "5009-2500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-2500.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.481610431704222,
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-      "duration": 3.2540360451218877,
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-      "duration_frames": 52064,
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-      "utterance_id": "4969-73975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73975.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.408737245607437,
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-      "duration_frames": 55963,
-      "overlap": false,
-      "utterance_id": "6364-66741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6364-66741.flac |",
-      "real_speaker_id": "6364",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.509614179284213,
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-      "start_frame": 408153,
-      "duration_frames": 82456,
-      "overlap": false,
-      "utterance_id": "5009-2500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-2500.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 79165
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.224710108349697,
-      "end_time": 32.0,
-      "duration": 0.7752898916503028,
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-      "utterance_id": "4969-73974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73974.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "duration": 1.26,
-      "start_time": 11.678323711992666,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6364/laugh/0125.wav",
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-      "event_class": "laugh",
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-      "duration": 1.14,
-      "start_time": 30.86,
-      "speaker_id": "4969"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032929.json b/conversations/conv_032929.json
deleted file mode 100644
index 398e6527469527b201948f3c68163c7d18e414a7..0000000000000000000000000000000000000000
--- a/conversations/conv_032929.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.60524610506559,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3657-78622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-78622.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-182397.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.133434273589323,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177638.flac |",
-      "real_speaker_id": "3490",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3490-177638.flac |",
-      "real_speaker_id": "3490",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3657-19115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-19115.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032934.json b/conversations/conv_032934.json
deleted file mode 100644
index f649852d96a16cf7f777855745753d1406520f6e..0000000000000000000000000000000000000000
--- a/conversations/conv_032934.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_032938.json b/conversations/conv_032938.json
deleted file mode 100644
index 9a564326168f2466c41e224f482e90b7ad9410f1..0000000000000000000000000000000000000000
--- a/conversations/conv_032938.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.758766371952994,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
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-    {
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-      "real_speaker_id": "718",
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-      "segment_id": "seg0002",
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-      "speaker_id": "7949"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032939.json b/conversations/conv_032939.json
deleted file mode 100644
index 85234dcc71a9c75d9cc79b38b27446d3e217df97..0000000000000000000000000000000000000000
--- a/conversations/conv_032939.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106407.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 15.648958016097371,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141715.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.043992042681815,
-      "end_time": 28.966394166502077,
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-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 60282
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.861520889804083,
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-      "duration": 2.1384791101959166,
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-      "utterance_id": "7277-106407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106407.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 97188
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "speaker_id": "7277"
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\ No newline at end of file
diff --git a/conversations/conv_032943.json b/conversations/conv_032943.json
deleted file mode 100644
index be240a558701023c5db6d280f4f38aded0b745d4..0000000000000000000000000000000000000000
--- a/conversations/conv_032943.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7679-276767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7679-276767.flac |",
-      "real_speaker_id": "7679",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-291172.flac |",
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-      "real_speaker_id": "8605",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.335187931995186,
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-      "utterance_id": "7679-113325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7679-113325.flac |",
-      "real_speaker_id": "7679",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.339083490851344,
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-      "utterance_id": "8605-291172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-291172.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 60016
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.500334230946756,
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-      "utterance_id": "4280-185518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 65134
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "duration": 1.12,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "4280"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032944.json b/conversations/conv_032944.json
deleted file mode 100644
index 2426a8894685b8730328d8576c51a9f323a80e6c..0000000000000000000000000000000000000000
--- a/conversations/conv_032944.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.491634290005297,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287357.flac |",
-      "real_speaker_id": "8498",
-      "position_frames": 0
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-      "real_speaker_id": "3876",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174960.flac |",
-      "real_speaker_id": "3876",
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032952.json b/conversations/conv_032952.json
deleted file mode 100644
index 7c5c1fd53fe857c177d23ee861a1d309df194c8c..0000000000000000000000000000000000000000
--- a/conversations/conv_032952.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "4133",
-      "position_frames": 56116
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-      "utterance_id": "2089-133059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-133059.flac |",
-      "real_speaker_id": "2089",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "start_time": 20.594192658845053,
-      "speaker_id": "4133"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2089/laugh/0014.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "2089"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2089/cough/0126.wav",
-      "duration": 0.756943145785967,
-      "start_time": 26.835388408471843,
-      "speaker_id": "2089"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032955.json b/conversations/conv_032955.json
deleted file mode 100644
index 81e252cc177140e822889ddb286d67e8114af21d..0000000000000000000000000000000000000000
--- a/conversations/conv_032955.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.464460525550624,
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-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.62332074879338,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-23246.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 0
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-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 71431
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.222433512713273,
-      "end_time": 22.2634934082218,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4172-23246.flac |",
-      "real_speaker_id": "4172",
-      "position_frames": 101627
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.645626768761854,
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-      "utterance_id": "1717-142305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.936947925288834,
-      "end_time": 32.0,
-      "duration": 3.063052074711166,
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-      "duration_frames": 49008,
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-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 158265
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 0.8,
-      "start_time": 16.139317911873437,
-      "speaker_id": "4172"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_032959.json b/conversations/conv_032959.json
deleted file mode 100644
index 39df41e6c449354d39072e37c10b975cb8a37716..0000000000000000000000000000000000000000
--- a/conversations/conv_032959.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.084129791885694,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5719-233352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.870952245974435,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "307-127539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127539.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.553904585104334,
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-      "duration": 6.401890253558787,
-      "start_frame": 264862,
-      "duration_frames": 102430,
-      "overlap": false,
-      "utterance_id": "5719-41217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-41217.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.19860535779906,
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-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 49652
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "307-127535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127535.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "5719"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/583/laugh/0037.wav",
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-      "start_time": 7.809818039198952,
-      "speaker_id": "583"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_032963.json b/conversations/conv_032963.json
deleted file mode 100644
index 2dbe6686f4d681058bd1bb93980261c17977105b..0000000000000000000000000000000000000000
--- a/conversations/conv_032963.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.255644137361818,
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-      "start_frame": 0,
-      "duration_frames": 68090,
-      "overlap": false,
-      "utterance_id": "5280-204997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5280-204997.flac |",
-      "real_speaker_id": "5280",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.055573252154557,
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-      "utterance_id": "7113-86041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.09345269596951,
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-      "overlap": false,
-      "utterance_id": "1222-133834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.117422200090612,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 101145
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 21.69143915453805,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 153304
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.976035300614257,
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-      "duration": 4.023964699385743,
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-      "duration_frames": 64383,
-      "overlap": false,
-      "utterance_id": "5280-204997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5280-204997.flac |",
-      "real_speaker_id": "5280",
-      "position_frames": 68090
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7113/laugh/0095.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7113/laugh/0020.wav",
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-      "start_time": 21.429506263976418,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7113/cough/0076.wav",
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-      "speaker_id": "7113"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032975.json b/conversations/conv_032975.json
deleted file mode 100644
index beb47da040defeb7739167f196c1f0188254f2b8..0000000000000000000000000000000000000000
--- a/conversations/conv_032975.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.784469525028689,
-      "duration": 5.784469525028689,
-      "start_frame": 0,
-      "duration_frames": 92551,
-      "overlap": false,
-      "utterance_id": "318-124224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.585912915575021,
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-      "real_speaker_id": "8414",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124224.flac |",
-      "real_speaker_id": "318",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-      "speaker_id": "8414"
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-      "duration": 1.64,
-      "start_time": 30.36,
-      "speaker_id": "318"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_032979.json b/conversations/conv_032979.json
deleted file mode 100644
index 5ba4817043356bf95209c79d5fef7fa16103674e..0000000000000000000000000000000000000000
--- a/conversations/conv_032979.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "45",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122827.flac |",
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-      "position_frames": 61387
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69655.flac |",
-      "real_speaker_id": "6484",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-      "speaker_id": "45"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032980.json b/conversations/conv_032980.json
deleted file mode 100644
index 01fdc2a2ff4c6be945d2a4865bed7e3e0b5e0a7d..0000000000000000000000000000000000000000
--- a/conversations/conv_032980.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "1260",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "1260",
-      "position_frames": 57115
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-  "background_events": [
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_032981.json b/conversations/conv_032981.json
deleted file mode 100644
index 67811a52f5728d24a46e81d8b53f0df878866dfa..0000000000000000000000000000000000000000
--- a/conversations/conv_032981.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8195",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6865/laugh/0080.wav",
-      "duration": 0.833927431953539,
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-      "speaker_id": "6865"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "6865"
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-}
\ No newline at end of file
diff --git a/conversations/conv_032996.json b/conversations/conv_032996.json
deleted file mode 100644
index 046f716ac640667cb2f31d29702eebcdc24c3cb1..0000000000000000000000000000000000000000
--- a/conversations/conv_032996.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7800-283478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283478.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.214581806454439,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.655007501081606,
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-      "overlap": false,
-      "utterance_id": "7800-283493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283493.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "412-126975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 57375
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.790096331182262,
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-      "duration": 6.792592773893304,
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-      "utterance_id": "412-126975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 166546
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.384679780763328,
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-      "duration": 3.615320219236672,
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-      "utterance_id": "7800-283492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283492.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
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-      "start_time": 0,
-      "speaker_id": "7800"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/412/laugh/0010.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033000.json b/conversations/conv_033000.json
deleted file mode 100644
index 7d6498537f68db69ddbb7f6a0e566975135d01ea..0000000000000000000000000000000000000000
--- a/conversations/conv_033000.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 0
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-      "real_speaker_id": "7565",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8088-284756.flac |",
-      "real_speaker_id": "8088",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8592-285135.flac |",
-      "real_speaker_id": "8592",
-      "position_frames": 109671
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-    {
-      "segment_id": "seg0005",
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-      "duration": 3.3746050767841673,
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-      "overlap": false,
-      "utterance_id": "8088-284756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8088-284756.flac |",
-      "real_speaker_id": "8088",
-      "position_frames": 75406
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-  "background_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_033016.json b/conversations/conv_033016.json
deleted file mode 100644
index 250f9579b0f36145a34cc7547bd71c1eb32f4c74..0000000000000000000000000000000000000000
--- a/conversations/conv_033016.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033017.json b/conversations/conv_033017.json
deleted file mode 100644
index 9caf6d347a181d0ab2e4e2b84642781516334d98..0000000000000000000000000000000000000000
--- a/conversations/conv_033017.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.34356099847411,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "6965-291718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-291718.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_1.wav",
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-      "start_time": 18.133961057560402
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_033020.json b/conversations/conv_033020.json
deleted file mode 100644
index 0947d3425a6cfb0df404a8d80766afbbe788a967..0000000000000000000000000000000000000000
--- a/conversations/conv_033020.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6311-63719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6311-63719.flac |",
-      "real_speaker_id": "6311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.710876048219055,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6311-63718.flac |",
-      "real_speaker_id": "6311",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.953688701753105,
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-      "overlap": false,
-      "utterance_id": "5154-6174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-6174.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.93371474931486,
-      "end_time": 21.324449485115075,
-      "duration": 4.390734735800216,
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-      "utterance_id": "5154-26559",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26559.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.903569925045336,
-      "end_time": 28.348715660845645,
-      "duration": 6.44514573580031,
-      "start_frame": 350457,
-      "duration_frames": 103122,
-      "overlap": false,
-      "utterance_id": "6311-63718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6311-63718.flac |",
-      "real_speaker_id": "6311",
-      "position_frames": 108694
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.758914940642338,
-      "end_time": 32.0,
-      "duration": 3.241085059357662,
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-      "overlap": false,
-      "utterance_id": "8028-233366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6311/laugh/0041.wav",
-      "duration": 1.08,
-      "start_time": 0,
-      "speaker_id": "6311"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6311/laugh/0062.wav",
-      "duration": 1.24,
-      "start_time": 4.329039868020601,
-      "speaker_id": "6311"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033036.json b/conversations/conv_033036.json
deleted file mode 100644
index 8b3d7aed3f57c75d82234692a8c38b60574078e8..0000000000000000000000000000000000000000
--- a/conversations/conv_033036.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4791-25377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25377.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8855-283242.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-107938.flac |",
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-      "utterance_id": "8855-302395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8855-302395.flac |",
-      "real_speaker_id": "8855",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.90133072972122,
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-      "utterance_id": "4791-25379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25379.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.48738116521703,
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-      "utterance_id": "4174-69293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-69293.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.172929759381134,
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "speaker_id": "4791"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033040.json b/conversations/conv_033040.json
deleted file mode 100644
index 5148500dba344bd71ffa25b07eae1177195116a2..0000000000000000000000000000000000000000
--- a/conversations/conv_033040.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.7582170670415,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6035-80463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-80463.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.2456886234437725,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51655.flac |",
-      "real_speaker_id": "6076",
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-      "utterance_id": "6777-76694",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76694.flac |",
-      "real_speaker_id": "6777",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6076-51653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51653.flac |",
-      "real_speaker_id": "6076",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.628402599617772,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-80463.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 96944
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-      "utterance_id": "6076-51653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51653.flac |",
-      "real_speaker_id": "6076",
-      "position_frames": 100373
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "duration": 1.0,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033041.json b/conversations/conv_033041.json
deleted file mode 100644
index 1367abb18f1ef8b1bd9e72e8fb52cbf4de7d85ca..0000000000000000000000000000000000000000
--- a/conversations/conv_033041.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.51164439538065,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.037029837520565,
-      "duration": 5.037029837520565,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3909-11695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-11695.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.704038849541142,
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-      "real_speaker_id": "6849",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5246-5084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
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-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3909/cough/0119.wav",
-      "duration": 0.7659633610219327,
-      "start_time": 21.020602314002186,
-      "speaker_id": "3909"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033057.json b/conversations/conv_033057.json
deleted file mode 100644
index c70596afeea1117a99a01fbc1f3f7447072d74ac..0000000000000000000000000000000000000000
--- a/conversations/conv_033057.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.125800390277752,
-      "duration": 6.125800390277752,
-      "start_frame": 0,
-      "duration_frames": 98012,
-      "overlap": false,
-      "utterance_id": "8194-89388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.560356828644467,
-      "end_time": 11.429006768168787,
-      "duration": 4.868649939524319,
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-      "duration_frames": 77898,
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-      "utterance_id": "500-125123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.561604979783954,
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-      "duration": 6.776712457673165,
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-      "duration_frames": 108427,
-      "overlap": false,
-      "utterance_id": "2709-158074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2709-158074.flac |",
-      "real_speaker_id": "2709",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.288021667109625,
-      "end_time": 24.649066839321417,
-      "duration": 5.361045172211791,
-      "start_frame": 308608,
-      "duration_frames": 85776,
-      "overlap": false,
-      "utterance_id": "8194-89390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.82831428064241,
-      "end_time": 32.0,
-      "duration": 6.1716857193575905,
-      "start_frame": 413253,
-      "duration_frames": 98746,
-      "overlap": false,
-      "utterance_id": "2709-158074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2709-158074.flac |",
-      "real_speaker_id": "2709",
-      "position_frames": 108427
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 1.894642550058081,
-      "start_time": 28.017363604538904
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/500/laugh/0044.wav",
-      "duration": 0.82,
-      "start_time": 10.309342884965137,
-      "speaker_id": "500"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/500/cough/0039.wav",
-      "duration": 1.2128711911608219,
-      "start_time": 5.186095312313152,
-      "speaker_id": "500"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2709/laugh/0053.wav",
-      "duration": 0.823913911327331,
-      "start_time": 24.743381780706372,
-      "speaker_id": "2709"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033061.json b/conversations/conv_033061.json
deleted file mode 100644
index edc2c32d567b35521c2c65539aa04667c8a33d7a..0000000000000000000000000000000000000000
--- a/conversations/conv_033061.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.1067869598975166,
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-      "duration_frames": 49708,
-      "overlap": false,
-      "utterance_id": "111-126277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126277.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.4594818857772083,
-      "end_time": 9.440102797311734,
-      "duration": 5.980620911534526,
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-      "utterance_id": "5977-46900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.577177839373448,
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-      "overlap": false,
-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.085742999872792,
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-      "utterance_id": "5977-46900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 95689
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.371970962797192,
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-      "overlap": false,
-      "utterance_id": "111-126265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126265.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.06806039888864,
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-      "duration": 6.343158853116764,
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-      "duration_frames": 101490,
-      "overlap": false,
-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 62383
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.88518139691547,
-      "end_time": 32.0,
-      "duration": 3.1148186030845295,
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-      "duration_frames": 49837,
-      "overlap": false,
-      "utterance_id": "5977-46900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 153505
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/111/laugh/0019.wav",
-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "111"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5977/cough/0136.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5977/laugh/0064.wav",
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-      "start_time": 17.73173669146768,
-      "speaker_id": "5977"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/111/laugh/0091.wav",
-      "duration": 1.0344998089928406,
-      "start_time": 17.11653659669116,
-      "speaker_id": "111"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7647/laugh/0028.wav",
-      "duration": 1.04,
-      "start_time": 20.799912552345425,
-      "speaker_id": "7647"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033077.json b/conversations/conv_033077.json
deleted file mode 100644
index 256260635d45dc28ff2998b743d0fd961e0c3d04..0000000000000000000000000000000000000000
--- a/conversations/conv_033077.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2240-148522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148522.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 75404
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "2240-148522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148522.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 100373
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "7120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.005024694794784,
-      "end_time": 32.0,
-      "duration": 1.994975305205216,
-      "start_frame": 480080,
-      "duration_frames": 31919,
-      "overlap": false,
-      "utterance_id": "2240-148522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148522.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 209158
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
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-      "start_time": 12.661706712791865,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2240/laugh/0080.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2240/cough/0118.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033082.json b/conversations/conv_033082.json
deleted file mode 100644
index e83ab6e5480cc81d9040d322eef7196e96c8b158..0000000000000000000000000000000000000000
--- a/conversations/conv_033082.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2504-154289.flac |",
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-    {
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2504/cough/0073.wav",
-      "duration": 0.38229045540940504,
-      "start_time": 18.110928722217828,
-      "speaker_id": "2504"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2504/laugh/0069.wav",
-      "duration": 1.1,
-      "start_time": 25.18593680485561,
-      "speaker_id": "2504"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1052/laugh/0103.wav",
-      "duration": 1.2,
-      "start_time": 27.42173708602663,
-      "speaker_id": "1052"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033083.json b/conversations/conv_033083.json
deleted file mode 100644
index d6bad8ed0be6a9f8fd0dd08f4598586de79e9566..0000000000000000000000000000000000000000
--- a/conversations/conv_033083.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4983864424887097,
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-      "overlap": false,
-      "utterance_id": "6784-76152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76152.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.195182770838949,
-      "end_time": 7.456965177608316,
-      "duration": 3.2617824067693673,
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-      "duration_frames": 52188,
-      "overlap": false,
-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.719143396709546,
-      "end_time": 11.307240456467781,
-      "duration": 3.588097059758235,
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-      "overlap": false,
-      "utterance_id": "7247-101864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-101864.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.165604075088574,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76152.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 55974
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.22528411585325,
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-      "utterance_id": "6752-74796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74796.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.011076693797147,
-      "end_time": 28.670773922921356,
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-      "overlap": false,
-      "utterance_id": "6784-76150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76150.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.413179882499193,
-      "end_time": 32.0,
-      "duration": 2.5868201175008068,
-      "start_frame": 470610,
-      "duration_frames": 41389,
-      "overlap": false,
-      "utterance_id": "6784-76152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76152.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 129143
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
-      "duration": 0.20596371882086167,
-      "start_time": 13.672280250017735
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6752/laugh/0104.wav",
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-    },
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6784/laugh/0074.wav",
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-      "start_time": 13.129136437198898,
-      "speaker_id": "6784"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033085.json b/conversations/conv_033085.json
deleted file mode 100644
index abe7f52a1ffb2f58994673267e9475026e3789f7..0000000000000000000000000000000000000000
--- a/conversations/conv_033085.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.724899181536474,
-      "duration": 6.724899181536474,
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-      "overlap": false,
-      "utterance_id": "3380-6175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3380-6175.flac |",
-      "real_speaker_id": "3380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.9354894392517945,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3380-6175.flac |",
-      "real_speaker_id": "3380",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.249071401694628,
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-      "overlap": true,
-      "utterance_id": "7026-86941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.817288262819353,
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-      "utterance_id": "7026-86946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86946.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.68540379636145,
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-      "utterance_id": "3380-64298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3380-64298.flac |",
-      "real_speaker_id": "3380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.145278179829447,
-      "end_time": 32.0,
-      "duration": 4.854721820170553,
-      "start_frame": 434324,
-      "duration_frames": 77675,
-      "overlap": false,
-      "utterance_id": "7026-86941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 82457
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7026/laugh/0012.wav",
-      "duration": 1.12,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3380/cough/0096.wav",
-      "duration": 0.5105500733483657,
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-      "speaker_id": "3380"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7026/cough/0056.wav",
-      "duration": 0.7591679507943707,
-      "start_time": 31.24083204920563,
-      "speaker_id": "7026"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033093.json b/conversations/conv_033093.json
deleted file mode 100644
index abfc805926cb862197bba409180c9e09ca1ef334..0000000000000000000000000000000000000000
--- a/conversations/conv_033093.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3436-172162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172162.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105212.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-147193.flac |",
-      "real_speaker_id": "2074",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3436-172171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
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-    {
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-    {
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-      "real_speaker_id": "3436",
-      "position_frames": 60090
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-    {
-      "segment_id": "seg0006",
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "event_class": "Dishes",
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-      "speaker_id": "6402"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033094.json b/conversations/conv_033094.json
deleted file mode 100644
index 912cdf84387fac3e16663e090ea2cf65e9cc315f..0000000000000000000000000000000000000000
--- a/conversations/conv_033094.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2196-174172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-174172.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4731-58193.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-174172.flac |",
-      "real_speaker_id": "2196",
-      "position_frames": 200611
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4731-58193.flac |",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_033098.json b/conversations/conv_033098.json
deleted file mode 100644
index e49bd2f29f98a6edb1cbfa52ce742f4808c6af3a..0000000000000000000000000000000000000000
--- a/conversations/conv_033098.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.62378720615513,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2063-148526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148526.flac |",
-      "real_speaker_id": "2063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.2809471798298295,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148525.flac |",
-      "real_speaker_id": "2063",
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-      "position_frames": 108464
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-      "real_speaker_id": "2002",
-      "position_frames": 62025
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-      "segment_id": "seg0005",
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-      "utterance_id": "2063-148526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148526.flac |",
-      "real_speaker_id": "2063",
-      "position_frames": 162078
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_033104.json b/conversations/conv_033104.json
deleted file mode 100644
index d691966745d4259d079c7d960f23e8c407dd9e43..0000000000000000000000000000000000000000
--- a/conversations/conv_033104.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154671.flac |",
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-    {
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-  "foreground_events": [
-    {
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "2427"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033105.json b/conversations/conv_033105.json
deleted file mode 100644
index bd30a9b3ece016a6be45bbfc78e446da1814b320..0000000000000000000000000000000000000000
--- a/conversations/conv_033105.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-    {
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-    {
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-      "speaker_id": "1756"
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-      "event_class": "laugh",
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-      "speaker_id": "8421"
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-      "event_class": "cough",
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-      "duration": 1.4,
-      "start_time": 2.448046848391211,
-      "speaker_id": "8421"
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-    {
-      "event_class": "cough",
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-      "duration": 0.40034749531446323,
-      "start_time": 16.957235927949593,
-      "speaker_id": "8421"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033108.json b/conversations/conv_033108.json
deleted file mode 100644
index 8bbe889fe561b0bbfc5fe10b3577bd2a4f6ca30c..0000000000000000000000000000000000000000
--- a/conversations/conv_033108.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.188240732891888,
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-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.60388729550746,
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-      "duration": 4.787174154064772,
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-      "utterance_id": "5022-29411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29411.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.417653612907834,
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-      "duration_frames": 86422,
-      "overlap": false,
-      "utterance_id": "6184-61313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-61313.flac |",
-      "real_speaker_id": "6184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.438183610190734,
-      "end_time": 21.829835565584794,
-      "duration": 5.39165195539406,
-      "start_frame": 263010,
-      "duration_frames": 86266,
-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 67011
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.487975830735238,
-      "end_time": 25.961806313085248,
-      "duration": 3.473830482350012,
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-      "duration_frames": 55581,
-      "overlap": false,
-      "utterance_id": "5022-29405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29405.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.29214989416144,
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-      "duration_frames": 75325,
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-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 153277
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2127/laugh/0050.wav",
-      "duration": 1.24,
-      "start_time": 18.45948759300302,
-      "speaker_id": "2127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033112.json b/conversations/conv_033112.json
deleted file mode 100644
index b6b6275086655e6b8d6982347db54ffd129f483b..0000000000000000000000000000000000000000
--- a/conversations/conv_033112.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.194346756956448,
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-      "utterance_id": "6368-230929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-230929.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "2823-160953",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160953.flac |",
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-      "utterance_id": "6544-71420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6544-71420.flac |",
-      "real_speaker_id": "6544",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "6368-39664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-39664.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.937353660214175,
-      "end_time": 26.962239794098117,
-      "duration": 6.024886133883941,
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-      "utterance_id": "2823-160949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160949.flac |",
-      "real_speaker_id": "2823",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.237222823753445,
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-      "duration": 3.762777176246555,
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-      "overlap": false,
-      "utterance_id": "6368-39664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-39664.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 49740
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6368/laugh/0036.wav",
-      "duration": 1.4,
-      "start_time": 16.131389492070618,
-      "speaker_id": "6368"
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 0.9983996312913141,
-      "start_time": 31.001600368708687,
-      "speaker_id": "6368"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033124.json b/conversations/conv_033124.json
deleted file mode 100644
index b418c53eec653ca1efe5d55cfe40357f55e59211..0000000000000000000000000000000000000000
--- a/conversations/conv_033124.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.090936241094163,
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-      "utterance_id": "1710-133295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133295.flac |",
-      "real_speaker_id": "1710",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 78283
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.6404161649784,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-10160.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1710-133295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133295.flac |",
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-      "position_frames": 74264
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.221319050678275,
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-      "duration": 2.778680949321725,
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-      "overlap": false,
-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
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-  "background_events": [],
-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033128.json b/conversations/conv_033128.json
deleted file mode 100644
index ffd03d9b80337c790ac3f38261409aa19f60f509..0000000000000000000000000000000000000000
--- a/conversations/conv_033128.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.400227444661863,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.6032234103197758,
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-      "real_speaker_id": "6032",
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-      "segment_id": "seg0002",
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-      "utterance_id": "6032-58192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6032-58192.flac |",
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-      "position_frames": 0
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8678/laugh/0052.wav",
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-      "start_time": 20.122802265927717,
-      "speaker_id": "8678"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8678/cough/0021.wav",
-      "duration": 1.1776755421874952,
-      "start_time": 20.098661406060526,
-      "speaker_id": "8678"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8678/laugh/0060.wav",
-      "duration": 1.3639840479924603,
-      "start_time": 30.63601595200754,
-      "speaker_id": "8678"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033129.json b/conversations/conv_033129.json
deleted file mode 100644
index 86d02b82e6226b528cc8200e59b27dfae677e76c..0000000000000000000000000000000000000000
--- a/conversations/conv_033129.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.49613875331475,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "716-129583",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129583.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.522280993480751,
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-      "duration": 6.994331848998411,
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-      "duration_frames": 111909,
-      "overlap": false,
-      "utterance_id": "8008-271817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271817.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.351398878370508,
-      "end_time": 17.90269235122652,
-      "duration": 4.5512934728560115,
-      "start_frame": 213622,
-      "duration_frames": 72820,
-      "overlap": true,
-      "utterance_id": "716-129582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129582.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.95648008581671,
-      "end_time": 23.959588395657583,
-      "duration": 5.003108309840874,
-      "start_frame": 303303,
-      "duration_frames": 80049,
-      "overlap": false,
-      "utterance_id": "8008-271817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271817.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 111909
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.41441829288105,
-      "end_time": 30.107907080429207,
-      "duration": 5.693488787548159,
-      "start_frame": 390630,
-      "duration_frames": 91095,
-      "overlap": false,
-      "utterance_id": "716-129582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129582.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 72820
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.53041842101498,
-      "end_time": 32.0,
-      "duration": 1.4695815789850215,
-      "start_frame": 488486,
-      "duration_frames": 23513,
-      "overlap": false,
-      "utterance_id": "8008-271811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271811.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8008/cough/0050.wav",
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-      "start_time": 13.643116088052839,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8008/laugh/0113.wav",
-      "duration": 0.7864631463928682,
-      "start_time": 30.87850867432312,
-      "speaker_id": "8008"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033132.json b/conversations/conv_033132.json
deleted file mode 100644
index 7db6a586bf7e8d0e6868bb8e1ac75084a749273a..0000000000000000000000000000000000000000
--- a/conversations/conv_033132.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.15239134674191,
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-      "overlap": false,
-      "utterance_id": "127-129390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.997413378507703,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.11131809513166,
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-      "utterance_id": "5789-57195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-57195.flac |",
-      "real_speaker_id": "5789",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.539199926958304,
-      "end_time": 24.51316563719037,
-      "duration": 6.973965710232065,
-      "start_frame": 280627,
-      "duration_frames": 111583,
-      "overlap": false,
-      "utterance_id": "5789-57195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-57195.flac |",
-      "real_speaker_id": "5789",
-      "position_frames": 67374
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.982146393046925,
-      "end_time": 30.489376181069574,
-      "duration": 5.5072297880226495,
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-      "duration_frames": 88115,
-      "overlap": false,
-      "utterance_id": "127-129385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 83058
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.148361272934018,
-      "end_time": 32.0,
-      "duration": 0.851638727065982,
-      "start_frame": 498373,
-      "duration_frames": 13626,
-      "overlap": false,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5789/laugh/0091.wav",
-      "duration": 1.16,
-      "start_time": 16.188430904490154,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "6853"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033139.json b/conversations/conv_033139.json
deleted file mode 100644
index 4058a7851e7fee696945938090146a4c4202dbb5..0000000000000000000000000000000000000000
--- a/conversations/conv_033139.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.986164827579138,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.294792171462383,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4487-1799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4487-1799.flac |",
-      "real_speaker_id": "4487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.735086551591796,
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-      "utterance_id": "7558-89894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7558-89894.flac |",
-      "real_speaker_id": "7558",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4487-1799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4487-1799.flac |",
-      "real_speaker_id": "4487",
-      "position_frames": 84716
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.909390256570084,
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-      "overlap": true,
-      "utterance_id": "7558-89894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7558-89894.flac |",
-      "real_speaker_id": "7558",
-      "position_frames": 104585
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.213212030061577,
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-      "utterance_id": "4487-1799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4487-1799.flac |",
-      "real_speaker_id": "4487",
-      "position_frames": 156132
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.10548848324137,
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-      "utterance_id": "7558-89894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7558-89894.flac |",
-      "real_speaker_id": "7558",
-      "position_frames": 169570
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_033145.json b/conversations/conv_033145.json
deleted file mode 100644
index c4003be7c72c9a0a4bce85e582c6efbe275bf62a..0000000000000000000000000000000000000000
--- a/conversations/conv_033145.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.74592905746303,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "end_time": 4.377171297442547,
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-      "overlap": false,
-      "utterance_id": "7467-261121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.7141306371216976,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7467-69610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
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-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7467/laugh/0009.wav",
-      "duration": 0.76,
-      "start_time": 0,
-      "speaker_id": "7467"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3989/cough/0113.wav",
-      "duration": 0.36193667696499665,
-      "start_time": 6.99549649535872,
-      "speaker_id": "3989"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7467/cough/0041.wav",
-      "duration": 1.2515471731556367,
-      "start_time": 9.806008495050113,
-      "speaker_id": "7467"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033149.json b/conversations/conv_033149.json
deleted file mode 100644
index 2494457a725caca68eac0f49f713de953dba0a4e..0000000000000000000000000000000000000000
--- a/conversations/conv_033149.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.21692546259819,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.3740279244198557,
-      "duration": 3.3740279244198557,
-      "start_frame": 0,
-      "duration_frames": 53984,
-      "overlap": false,
-      "utterance_id": "5123-29120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.974562029834278,
-      "end_time": 7.519393045769297,
-      "duration": 3.544831015935019,
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-      "duration_frames": 56717,
-      "overlap": false,
-      "utterance_id": "4447-14931",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14931.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.815389328582073,
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-      "duration": 4.565477285850045,
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-      "overlap": false,
-      "utterance_id": "5123-34572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.982781766887673,
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-      "duration": 4.12770142627542,
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-      "duration_frames": 66043,
-      "overlap": false,
-      "utterance_id": "4447-14919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.264700368638678,
-      "end_time": 23.04614772245954,
-      "duration": 5.7814473538208615,
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-      "duration_frames": 92503,
-      "overlap": true,
-      "utterance_id": "5123-29120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 53984
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.89224072211685,
-      "end_time": 29.461305207588456,
-      "duration": 5.569064485471606,
-      "start_frame": 382275,
-      "duration_frames": 89105,
-      "overlap": false,
-      "utterance_id": "4260-176853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176853.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.89063716502497,
-      "end_time": 31.21692546259819,
-      "duration": 2.326288297573221,
-      "start_frame": 462250,
-      "duration_frames": 37220,
-      "overlap": true,
-      "utterance_id": "5123-34572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 73047
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "duration": 2.249795918367347,
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5123/laugh/0032.wav",
-      "duration": 1.48,
-      "start_time": 0.19962224306857534,
-      "speaker_id": "5123"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4447/laugh/0085.wav",
-      "duration": 0.5056418759712162,
-      "start_time": 5.36066306652049,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4447/laugh/0072.wav",
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-      "start_time": 17.274620834564498,
-      "speaker_id": "4447"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033152.json b/conversations/conv_033152.json
deleted file mode 100644
index ec3e26253abfc119e7c3c5ceaf90836f3a02fedb..0000000000000000000000000000000000000000
--- a/conversations/conv_033152.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7832-114468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-114468.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.039989824329782,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "7832-114468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-114468.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 71431
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.038632694699848,
-      "end_time": 16.31164866959317,
-      "duration": 3.2730159748933203,
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-      "overlap": false,
-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 49419
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 16.482940424402383,
-      "end_time": 21.423728113298143,
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-      "duration_frames": 79052,
-      "overlap": false,
-      "utterance_id": "7832-258250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-258250.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.24707637522733,
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-      "duration": 6.215172713490311,
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-      "overlap": false,
-      "utterance_id": "7128-84121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7128-84121.flac |",
-      "real_speaker_id": "7128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.24849614420085,
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-      "duration": 2.7515038557991502,
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-      "utterance_id": "7832-114468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-114468.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 130520
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7832/laugh/0039.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7128/cough/0107.wav",
-      "duration": 1.325313723548051,
-      "start_time": 28.632041200610644,
-      "speaker_id": "7128"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033153.json b/conversations/conv_033153.json
deleted file mode 100644
index a609f77781d2d1a791a982bd2404b75bb70e8adb..0000000000000000000000000000000000000000
--- a/conversations/conv_033153.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.57174121846331,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1958-144503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.919809751120632,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110526.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "duration_frames": 78693,
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-      "utterance_id": "1958-144503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 92234
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7752-110522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110522.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.787953918858104,
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-      "overlap": false,
-      "utterance_id": "1425-139297",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139297.flac |",
-      "real_speaker_id": "1425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.579701069869834,
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-      "utterance_id": "7752-110526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110526.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 58321
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1958/laugh/0012.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1425/laugh/0018.wav",
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-      "start_time": 25.78100987282961,
-      "speaker_id": "1425"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033165.json b/conversations/conv_033165.json
deleted file mode 100644
index 4be04368c851cb5bc744335b91b9d49f184c49a3..0000000000000000000000000000000000000000
--- a/conversations/conv_033165.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2208-10076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.490134974548805,
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-      "utterance_id": "5993-19639",
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-      "real_speaker_id": "5993",
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-      "segment_id": "seg0002",
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-      "utterance_id": "2208-11020",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7823-103122.flac |",
-      "real_speaker_id": "7823",
-      "position_frames": 123096
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-      "event_class": "cough",
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-      "duration": 1.48,
-      "start_time": 20.954363593891852,
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-}
\ No newline at end of file
diff --git a/conversations/conv_033169.json b/conversations/conv_033169.json
deleted file mode 100644
index 7420057c1b1303272f1418b32cb9e30c4fda589e..0000000000000000000000000000000000000000
--- a/conversations/conv_033169.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.45837641149359,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "2541-135246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-135246.flac |",
-      "real_speaker_id": "2541",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.631205285836833,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7092-56730.flac |",
-      "real_speaker_id": "7092",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-159352.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-159352.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
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-  "background_events": [],
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "3238"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033173.json b/conversations/conv_033173.json
deleted file mode 100644
index 5ff51fd797d843156205a396f34864dcad21a208..0000000000000000000000000000000000000000
--- a/conversations/conv_033173.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131294.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131294.flac |",
-      "real_speaker_id": "868",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-180238.flac |",
-      "real_speaker_id": "4021",
-      "position_frames": 0
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-    {
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-      "start_time": 17.00322832479619,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-292604.flac |",
-      "real_speaker_id": "3967",
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-      "utterance_id": "868-131296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131296.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "3967-292604",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-292604.flac |",
-      "real_speaker_id": "3967",
-      "position_frames": 82129
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/868/laugh/0010.wav",
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "868"
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-      "event_class": "laugh",
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-      "speaker_id": "868"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "3967"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033178.json b/conversations/conv_033178.json
deleted file mode 100644
index cf221e6eb24d5ffbec1a8eedb99ba81d901acfb7..0000000000000000000000000000000000000000
--- a/conversations/conv_033178.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "1846",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
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-    {
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-      "speaker_id": 1,
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-    },
-    {
-      "segment_id": "seg0005",
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-      "position_frames": 88646
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "6567-53342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_4.wav",
-      "duration": 0.2465986394557823,
-      "start_time": 16.326301827707507
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1846/laugh/0064.wav",
-      "duration": 1.1422685955494711,
-      "start_time": 8.276900219031223,
-      "speaker_id": "1846"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3008/laugh/0007.wav",
-      "duration": 1.199057453739071,
-      "start_time": 8.796919769654794,
-      "speaker_id": "3008"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6567/laugh/0041.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "6567"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033181.json b/conversations/conv_033181.json
deleted file mode 100644
index a11c452705cb838eb6400f1ab47ffe2c44d76f91..0000000000000000000000000000000000000000
--- a/conversations/conv_033181.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.80995626030749,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.051676129205886,
-      "duration": 6.051676129205886,
-      "start_frame": 0,
-      "duration_frames": 96826,
-      "overlap": false,
-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.755729317054865,
-      "end_time": 12.497509234521583,
-      "duration": 5.741779917466719,
-      "start_frame": 108091,
-      "duration_frames": 91868,
-      "overlap": false,
-      "utterance_id": "1250-135782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135782.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.879964063286883,
-      "end_time": 17.249028470427504,
-      "duration": 5.36906440714062,
-      "start_frame": 190079,
-      "duration_frames": 85905,
-      "overlap": true,
-      "utterance_id": "4321-27567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-27567.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.264804545304134,
-      "end_time": 25.260728553013283,
-      "duration": 6.995924007709149,
-      "start_frame": 292236,
-      "duration_frames": 111934,
-      "overlap": false,
-      "utterance_id": "4321-15217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-15217.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.896082143554484,
-      "end_time": 31.80995626030749,
-      "duration": 5.913874116753007,
-      "start_frame": 414337,
-      "duration_frames": 94621,
-      "overlap": false,
-      "utterance_id": "1250-135782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135782.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 91868
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
-      "duration": 1.2095691609977324,
-      "start_time": 20.76263500861321
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4321/laugh/0055.wav",
-      "duration": 0.7002865853914282,
-      "start_time": 11.177246501030519,
-      "speaker_id": "4321"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033186.json b/conversations/conv_033186.json
deleted file mode 100644
index e2259c9bdba8ec96ba1fb471e9f9934930a22beb..0000000000000000000000000000000000000000
--- a/conversations/conv_033186.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.71651891972006,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5209857235455457,
-      "duration": 3.5209857235455457,
-      "start_frame": 0,
-      "duration_frames": 56335,
-      "overlap": false,
-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.7817871100634184,
-      "end_time": 8.42818820156749,
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-      "start_frame": 60508,
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-      "overlap": false,
-      "utterance_id": "265-136853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-136853.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.707309532365741,
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-      "duration": 4.395489754246451,
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-      "overlap": false,
-      "utterance_id": "36-16603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.218730315258632,
-      "end_time": 17.914486613884982,
-      "duration": 4.6957562986263515,
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-      "duration_frames": 75132,
-      "overlap": false,
-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 56335
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.123544331690482,
-      "end_time": 23.865410129059853,
-      "duration": 5.741865797369373,
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-      "duration_frames": 91869,
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-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 131467
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.687458406469887,
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-      "duration": 6.73858545937851,
-      "start_frame": 378999,
-      "duration_frames": 107817,
-      "overlap": true,
-      "utterance_id": "36-16602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.18385536347501,
-      "end_time": 31.71651891972006,
-      "duration": 0.5326635562450477,
-      "start_frame": 498941,
-      "duration_frames": 8522,
-      "overlap": true,
-      "utterance_id": "265-136853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-136853.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 74342
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_9.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/36/laugh/0042.wav",
-      "duration": 0.96,
-      "start_time": 13.347761977866252,
-      "speaker_id": "36"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1780/laugh/0048.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1780/cough/0013.wav",
-      "duration": 0.9508352219177529,
-      "start_time": 17.0067709004954,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/36/laugh/0112.wav",
-      "duration": 1.12,
-      "start_time": 22.521870156460604,
-      "speaker_id": "36"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033190.json b/conversations/conv_033190.json
deleted file mode 100644
index b8450dbbd532a3f6e0a88d44f86e2ec56b5f4898..0000000000000000000000000000000000000000
--- a/conversations/conv_033190.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7073-92170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-92170.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.240303421321366,
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-      "utterance_id": "47-122796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.439450089851544,
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-      "duration": 3.860514153026723,
-      "start_frame": 199031,
-      "duration_frames": 61768,
-      "overlap": true,
-      "utterance_id": "7073-92170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-92170.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 67942
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.754641783439446,
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-      "duration": 5.143022057661044,
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-      "duration_frames": 82288,
-      "overlap": false,
-      "utterance_id": "47-122796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7073-114963",
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-      "real_speaker_id": "7073",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 30228,
-      "overlap": false,
-      "utterance_id": "47-122796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
-      "position_frames": 185365
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7073/laugh/0050.wav",
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-      "speaker_id": "7073"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7073/cough/0014.wav",
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-      "start_time": 16.440627195049796,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7073/laugh/0041.wav",
-      "duration": 1.141376845966416,
-      "start_time": 30.100372861786166,
-      "speaker_id": "7073"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/47/laugh/0139.wav",
-      "duration": 0.8896685884608262,
-      "start_time": 29.12022744277977,
-      "speaker_id": "47"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033197.json b/conversations/conv_033197.json
deleted file mode 100644
index 01b4d76bf18bba1c6c73ddf4983f07608fb3d060..0000000000000000000000000000000000000000
--- a/conversations/conv_033197.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.84474068482565,
-      "duration": 4.84474068482565,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5637-41170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41170.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "666-11244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-126446.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 57975
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
-      "duration": 1.2095691609977324,
-      "start_time": 27.623599638802034
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5637/laugh/0050.wav",
-      "duration": 1.455288321787786,
-      "start_time": 21.678008561115202,
-      "speaker_id": "5637"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033201.json b/conversations/conv_033201.json
deleted file mode 100644
index 5cc3ee13a72fa96f6dac7114247e30b8509c3173..0000000000000000000000000000000000000000
--- a/conversations/conv_033201.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.4869783415471165,
-      "duration": 4.4869783415471165,
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-      "duration_frames": 71791,
-      "overlap": false,
-      "utterance_id": "4441-76250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76250.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.1757444692579435,
-      "end_time": 9.60223192174211,
-      "duration": 4.4264874524841655,
-      "start_frame": 82811,
-      "duration_frames": 70823,
-      "overlap": false,
-      "utterance_id": "1944-159228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1944-159228.flac |",
-      "real_speaker_id": "1944",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.196221471955987,
-      "end_time": 14.967301856997757,
-      "duration": 4.77108038504177,
-      "start_frame": 163139,
-      "duration_frames": 76337,
-      "overlap": false,
-      "utterance_id": "8356-240982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8356-240982.flac |",
-      "real_speaker_id": "8356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.89382912470991,
-      "end_time": 22.820227145905836,
-      "duration": 6.926398021195926,
-      "start_frame": 254301,
-      "duration_frames": 110822,
-      "overlap": false,
-      "utterance_id": "4441-76250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76250.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 71791
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.460035099858842,
-      "end_time": 29.483246502830887,
-      "duration": 6.023211402972043,
-      "start_frame": 375360,
-      "duration_frames": 96371,
-      "overlap": false,
-      "utterance_id": "1944-159227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1944-159227.flac |",
-      "real_speaker_id": "1944",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.436558706602938,
-      "end_time": 32.0,
-      "duration": 1.5634412933970623,
-      "start_frame": 486984,
-      "duration_frames": 25015,
-      "overlap": false,
-      "utterance_id": "1944-159228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1944-159228.flac |",
-      "real_speaker_id": "1944",
-      "position_frames": 70823
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 11.42601708837172,
-      "start_time": 13.409321967722592
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
-      "duration": 0.2863945578231292,
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
-      "duration": 2.0880283820689605,
-      "start_time": 26.309402073106465
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_033206.json b/conversations/conv_033206.json
deleted file mode 100644
index 8fd91b9dd8da56c0054a659513abfe5de2520ed5..0000000000000000000000000000000000000000
--- a/conversations/conv_033206.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.191814891280799,
-      "duration": 5.191814891280799,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.528923253975422,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134829.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.454241565295572,
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-      "utterance_id": "5062-294697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294697.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.299512882218078,
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-      "duration": 3.908529132966634,
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-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 83069
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1110-134829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1110-134829.flac |",
-      "real_speaker_id": "1110",
-      "position_frames": 88469
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.705302706507947,
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-      "utterance_id": "5062-294700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294700.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.265080770272938,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132530.flac |",
-      "real_speaker_id": "2411",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_5.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1110/laugh/0057.wav",
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-      "speaker_id": "1110"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033210.json b/conversations/conv_033210.json
deleted file mode 100644
index 902331512972cdda5650e7cc4799ea8f3eb1f103..0000000000000000000000000000000000000000
--- a/conversations/conv_033210.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.557396077043208,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "8242-279771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279771.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.294426485703575,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-80534.flac |",
-      "real_speaker_id": "7910",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7553-101278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.488140235746293,
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-      "duration": 5.8892603101821095,
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-      "duration_frames": 94228,
-      "overlap": false,
-      "utterance_id": "7553-101278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 69727
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279764.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.420525015410036,
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-      "overlap": true,
-      "utterance_id": "7910-294690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7910-294690.flac |",
-      "real_speaker_id": "7910",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033217.json b/conversations/conv_033217.json
deleted file mode 100644
index 274e65a242615f3588560b2acc8c2fe6abe5380c..0000000000000000000000000000000000000000
--- a/conversations/conv_033217.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.640864090901025,
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-      "duration_frames": 106253,
-      "overlap": false,
-      "utterance_id": "207-122801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-122801.flac |",
-      "real_speaker_id": "207",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.191621992779249,
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-      "duration_frames": 83319,
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-      "utterance_id": "207-122801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-122801.flac |",
-      "real_speaker_id": "207",
-      "position_frames": 106253
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.015180247176918,
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-      "duration_frames": 69430,
-      "overlap": false,
-      "utterance_id": "3894-6553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6553.flac |",
-      "real_speaker_id": "3894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "8468",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6553.flac |",
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-      "position_frames": 69430
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033221.json b/conversations/conv_033221.json
deleted file mode 100644
index 40299ad97ac0b151e804d9c40b0860617ecbef81..0000000000000000000000000000000000000000
--- a/conversations/conv_033221.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5221350424994857,
-      "duration": 3.5221350424994857,
-      "start_frame": 0,
-      "duration_frames": 56354,
-      "overlap": false,
-      "utterance_id": "17-363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.053874509506368,
-      "end_time": 9.569549572477886,
-      "duration": 5.515675062971517,
-      "start_frame": 64861,
-      "duration_frames": 88250,
-      "overlap": false,
-      "utterance_id": "2581-157857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-157857.flac |",
-      "real_speaker_id": "2581",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.292525686983371,
-      "end_time": 15.319248945455424,
-      "duration": 5.026723258472053,
-      "start_frame": 164680,
-      "duration_frames": 80427,
-      "overlap": false,
-      "utterance_id": "5093-48377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-48377.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.372859752740204,
-      "end_time": 20.731758044773354,
-      "duration": 4.3588982920331505,
-      "start_frame": 261965,
-      "duration_frames": 69742,
-      "overlap": false,
-      "utterance_id": "17-362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.906456787345004,
-      "end_time": 26.532439361601632,
-      "duration": 5.625982574256628,
-      "start_frame": 334503,
-      "duration_frames": 90015,
-      "overlap": false,
-      "utterance_id": "17-363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-363.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 56354
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.858164161837394,
-      "end_time": 32.0,
-      "duration": 5.141835838162606,
-      "start_frame": 429730,
-      "duration_frames": 82269,
-      "overlap": false,
-      "utterance_id": "2581-155520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-155520.flac |",
-      "real_speaker_id": "2581",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
-      "duration": 2.596459936762166,
-      "start_time": 1.7531284855618368
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
-      "duration": 0.30428571428571427,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/17/laugh/0040.wav",
-      "duration": 0.7691323220204218,
-      "start_time": 0,
-      "speaker_id": "17"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2581/laugh/0087.wav",
-      "duration": 1.28,
-      "start_time": 30.44515547330239,
-      "speaker_id": "2581"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033237.json b/conversations/conv_033237.json
deleted file mode 100644
index 5ba3b91942ec5ac43d0838ed24999fbbfea4b5de..0000000000000000000000000000000000000000
--- a/conversations/conv_033237.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.1469955249780464,
-      "duration": 3.1469955249780464,
-      "start_frame": 0,
-      "duration_frames": 50351,
-      "overlap": false,
-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.1342442224774705,
-      "end_time": 9.89156302900845,
-      "duration": 6.75731880653098,
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-      "overlap": true,
-      "utterance_id": "5192-19396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5192-19396.flac |",
-      "real_speaker_id": "5192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.705495759772823,
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-      "duration": 4.687988017621692,
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-      "duration_frames": 75007,
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-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 50351
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.83712634411696,
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-      "duration": 4.622472162910363,
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-      "overlap": false,
-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 125358
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "duration_frames": 88417,
-      "overlap": false,
-      "utterance_id": "1365-134825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134825.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.840251262239015,
-      "end_time": 32.0,
-      "duration": 3.159748737760985,
-      "start_frame": 461444,
-      "duration_frames": 50555,
-      "overlap": false,
-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 199317
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 15.042088471114841,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4305/laugh/0048.wav",
-      "duration": 1.46,
-      "start_time": 12.266728495740875,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4305/cough/0002.wav",
-      "duration": 1.12,
-      "start_time": 10.471831329918288,
-      "speaker_id": "4305"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4305/laugh/0075.wav",
-      "duration": 1.44,
-      "start_time": 21.577490736700707,
-      "speaker_id": "4305"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1365/laugh/0037.wav",
-      "duration": 1.3783340212449506,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4305/cough/0058.wav",
-      "duration": 1.1953273072616475,
-      "start_time": 30.804672692738354,
-      "speaker_id": "4305"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033240.json b/conversations/conv_033240.json
deleted file mode 100644
index b922f5df38bd73975317fae298304f1634bca89b..0000000000000000000000000000000000000000
--- a/conversations/conv_033240.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.160320067667544,
-      "duration": 5.160320067667544,
-      "start_frame": 0,
-      "duration_frames": 82565,
-      "overlap": false,
-      "utterance_id": "5118-111610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111610.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.5432594387550855,
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-      "duration_frames": 69241,
-      "overlap": false,
-      "utterance_id": "3541-174244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174244.flac |",
-      "real_speaker_id": "3541",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "2374-160960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-160960.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5118-111612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111612.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2374",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "3541",
-      "position_frames": 69241
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2374/laugh/0019.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3541/laugh/0045.wav",
-      "duration": 0.9304414891177155,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033247.json b/conversations/conv_033247.json
deleted file mode 100644
index 0693dfd953c1ffc7a861c4de1ece216c2c6b7240..0000000000000000000000000000000000000000
--- a/conversations/conv_033247.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.9420385778535865,
-      "duration": 4.9420385778535865,
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-      "utterance_id": "317-130248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130248.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178030.flac |",
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-    {
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-    {
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
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-      "duration": 2.519664301745318,
-      "start_time": 16.834233294999567
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/317/laugh/0130.wav",
-      "duration": 0.8136446532938386,
-      "start_time": 20.922219269557647,
-      "speaker_id": "317"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6227/laugh/0003.wav",
-      "duration": 1.52,
-      "start_time": 30.48,
-      "speaker_id": "6227"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033251.json b/conversations/conv_033251.json
deleted file mode 100644
index d599de6a340464180b715899c8d4493aa4c9acaa..0000000000000000000000000000000000000000
--- a/conversations/conv_033251.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.993129514654067,
-      "duration": 5.993129514654067,
-      "start_frame": 0,
-      "duration_frames": 95890,
-      "overlap": false,
-      "utterance_id": "1096-128267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-128267.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.561509372517509,
-      "end_time": 9.574326706703552,
-      "duration": 3.0128173341860434,
-      "start_frame": 104984,
-      "duration_frames": 48205,
-      "overlap": true,
-      "utterance_id": "2544-27475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-27475.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.41887518686881,
-      "end_time": 15.674100621970672,
-      "duration": 4.2552254351018615,
-      "start_frame": 182702,
-      "duration_frames": 68083,
-      "overlap": false,
-      "utterance_id": "1096-128265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-128265.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.11114129986087,
-      "end_time": 21.585989834112958,
-      "duration": 5.47484853425209,
-      "start_frame": 257778,
-      "duration_frames": 87597,
-      "overlap": false,
-      "utterance_id": "2544-10944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-10944.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.14301542931188,
-      "end_time": 26.48979608719246,
-      "duration": 4.346780657880578,
-      "start_frame": 354288,
-      "duration_frames": 69548,
-      "overlap": false,
-      "utterance_id": "1096-17320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-17320.flac |",
-      "real_speaker_id": "1096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.45726904949317,
-      "end_time": 32.0,
-      "duration": 4.542730950506829,
-      "start_frame": 439316,
-      "duration_frames": 72683,
-      "overlap": false,
-      "utterance_id": "2544-10944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-10944.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 87597
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
-      "duration": 4.240011276966065,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
-      "duration": 3.7329443073008908,
-      "start_time": 18.677740668399167
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2544/laugh/0154.wav",
-      "duration": 0.984967437921453,
-      "start_time": 5.552290735225028,
-      "speaker_id": "2544"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2544/cough/0157.wav",
-      "duration": 0.92,
-      "start_time": 18.010224078668458,
-      "speaker_id": "2544"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1096/cough/0063.wav",
-      "duration": 0.5753800942472611,
-      "start_time": 24.186902914403497,
-      "speaker_id": "1096"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033256.json b/conversations/conv_033256.json
deleted file mode 100644
index 0634b408545c78920bdd51f8ebeea247a636cc9e..0000000000000000000000000000000000000000
--- a/conversations/conv_033256.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.729522502209402,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.601726851852214,
-      "duration": 5.601726851852214,
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-      "overlap": false,
-      "utterance_id": "7569-102232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.990676573383916,
-      "end_time": 9.687410262680501,
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-      "start_frame": 95850,
-      "duration_frames": 59147,
-      "overlap": false,
-      "utterance_id": "7789-258266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-258266.flac |",
-      "real_speaker_id": "7789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.083349976911425,
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-      "duration_frames": 68002,
-      "overlap": false,
-      "utterance_id": "7569-102240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102240.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.890069070261095,
-      "end_time": 18.73991244591502,
-      "duration": 4.849843375653925,
-      "start_frame": 222241,
-      "duration_frames": 77597,
-      "overlap": true,
-      "utterance_id": "7789-258266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-258266.flac |",
-      "real_speaker_id": "7789",
-      "position_frames": 59147
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.670502350023753,
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-      "duration": 3.3486303543407256,
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-      "duration_frames": 53578,
-      "overlap": false,
-      "utterance_id": "7569-102240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102240.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 68002
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.70664097002077,
-      "end_time": 28.310721112323357,
-      "duration": 4.604080142302586,
-      "start_frame": 379306,
-      "duration_frames": 73665,
-      "overlap": false,
-      "utterance_id": "7789-258266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-258266.flac |",
-      "real_speaker_id": "7789",
-      "position_frames": 136744
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.62338285867651,
-      "end_time": 31.729522502209402,
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-      "utterance_id": "7569-102240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102240.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 121580
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7569/laugh/0081.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7789/laugh/0027.wav",
-      "duration": 0.9005078865647875,
-      "start_time": 7.808528121304947,
-      "speaker_id": "7789"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033260.json b/conversations/conv_033260.json
deleted file mode 100644
index 6306de7184dbfde481aa2eac73bc3da52a4e9e20..0000000000000000000000000000000000000000
--- a/conversations/conv_033260.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.895729547093733,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.600252996499612,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8527-281131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.198592606121755,
-      "end_time": 12.35075567300693,
-      "duration": 6.1521630668851754,
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-      "overlap": false,
-      "utterance_id": "6081-41997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-41997.flac |",
-      "real_speaker_id": "6081",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.022007821043154,
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-      "duration_frames": 89145,
-      "overlap": false,
-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 65892
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.644444748679856,
-      "end_time": 31.895729547093733,
-      "duration": 6.251284798413876,
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-      "duration_frames": 100020,
-      "overlap": false,
-      "utterance_id": "6081-42010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-42010.flac |",
-      "real_speaker_id": "6081",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.418317034985234,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6081/laugh/0019.wav",
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-      "start_time": 31.004131380306433,
-      "speaker_id": "6081"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033276.json b/conversations/conv_033276.json
deleted file mode 100644
index 3e3c6cfe1d64d76a3aba6f6f0d8e1f816b44db1a..0000000000000000000000000000000000000000
--- a/conversations/conv_033276.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.994222796135965,
-      "duration": 3.994222796135965,
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-      "overlap": false,
-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.603848037399027,
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-      "duration_frames": 99695,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-134809.flac |",
-      "real_speaker_id": "474",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.171889951233574,
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-      "duration_frames": 89760,
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-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
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-      "position_frames": 63907
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "2512",
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-    {
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-      "event_class": "Dog",
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-      "duration": 0.6236734693877551,
-      "start_time": 22.453976583992095
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/474/laugh/0095.wav",
-      "duration": 1.46,
-      "start_time": 1.8443540172265012,
-      "speaker_id": "474"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5767/laugh/0003.wav",
-      "duration": 1.2796088379174555,
-      "start_time": 9.724986899953086,
-      "speaker_id": "5767"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/474/laugh/0020.wav",
-      "duration": 0.8245417400097526,
-      "start_time": 21.72292552470882,
-      "speaker_id": "474"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5767/laugh/0005.wav",
-      "duration": 0.6415904898642115,
-      "start_time": 28.359379973479154,
-      "speaker_id": "5767"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033283.json b/conversations/conv_033283.json
deleted file mode 100644
index 2708606061eb61b8a7d76262ed8ce287291efc8a..0000000000000000000000000000000000000000
--- a/conversations/conv_033283.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.488545242632446,
-      "duration": 4.488545242632446,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5248-2163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-2163.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.721930027265815,
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-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.774062407954673,
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-      "start_frame": 188384,
-      "duration_frames": 70857,
-      "overlap": false,
-      "utterance_id": "5248-34498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34498.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.281262662824933,
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-      "overlap": false,
-      "utterance_id": "5874-52160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52160.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.847828575813917,
-      "end_time": 26.240167097584507,
-      "duration": 3.392338521770591,
-      "start_frame": 365565,
-      "duration_frames": 54277,
-      "overlap": false,
-      "utterance_id": "5248-34499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34499.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.036460232691024,
-      "end_time": 32.0,
-      "duration": 4.963539767308976,
-      "start_frame": 432583,
-      "duration_frames": 79416,
-      "overlap": false,
-      "utterance_id": "5874-52160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52160.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 87054
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Frying",
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-      "duration": 1.7266250790321473,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5248/laugh/0117.wav",
-      "duration": 1.2,
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 0.5705148378926632,
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-    {
-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 24.579152134348508,
-      "speaker_id": "5248"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033284.json b/conversations/conv_033284.json
deleted file mode 100644
index 39f88fa0e29195d85abcc08dce08c21a3157360c..0000000000000000000000000000000000000000
--- a/conversations/conv_033284.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.785745066618599,
-      "duration": 4.785745066618599,
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-      "overlap": false,
-      "utterance_id": "6377-34630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34630.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.347809711023309,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34630.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 76571
-    },
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "3969-6872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.794189351343011,
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-      "overlap": false,
-      "utterance_id": "6377-34634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34634.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.296818908317274,
-      "end_time": 27.2111815308324,
-      "duration": 5.9143626225151245,
-      "start_frame": 340749,
-      "duration_frames": 94629,
-      "overlap": false,
-      "utterance_id": "1392-128226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-128226.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.231889773493606,
-      "end_time": 32.0,
-      "duration": 3.768110226506394,
-      "start_frame": 451710,
-      "duration_frames": 60289,
-      "overlap": false,
-      "utterance_id": "3969-175415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-175415.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.8964010845214112,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6377/laugh/0103.wav",
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-      "start_time": 3.0484164289117963,
-      "speaker_id": "6377"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6377/cough/0098.wav",
-      "duration": 1.2795228005859547,
-      "start_time": 6.35893891522763,
-      "speaker_id": "6377"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3969/laugh/0096.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "3969"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033294.json b/conversations/conv_033294.json
deleted file mode 100644
index cd22a8dd310f68c05077a8d47002cf334616e7e0..0000000000000000000000000000000000000000
--- a/conversations/conv_033294.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 97749,
-      "overlap": false,
-      "utterance_id": "726-124445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/726-124445.flac |",
-      "real_speaker_id": "726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.671522209440352,
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-      "overlap": false,
-      "utterance_id": "1296-134434",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-134434.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.367101908463326,
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-      "overlap": false,
-      "utterance_id": "1296-134434",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-134434.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 104095
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1296-138074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-138074.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.947061425257186,
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-      "overlap": false,
-      "utterance_id": "726-124445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/726-124445.flac |",
-      "real_speaker_id": "726",
-      "position_frames": 97749
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1296-134434",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-134434.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 160398
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1296/laugh/0083.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1296/laugh/0015.wav",
-      "duration": 0.7617617844466184,
-      "start_time": 29.938567731259553,
-      "speaker_id": "1296"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033295.json b/conversations/conv_033295.json
deleted file mode 100644
index 1a92b4c3af1cc526cc5e158c9af6c11bf69343e3..0000000000000000000000000000000000000000
--- a/conversations/conv_033295.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.685251418507698,
-      "duration": 5.685251418507698,
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-      "duration_frames": 90964,
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-      "utterance_id": "4344-53906",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4344-53906.flac |",
-      "real_speaker_id": "4344",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-34479.flac |",
-      "real_speaker_id": "5400",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "4344-8892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4344-8892.flac |",
-      "real_speaker_id": "4344",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "4344",
-      "position_frames": 90964
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-34478.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_033299.json b/conversations/conv_033299.json
deleted file mode 100644
index 18fa84008a7435c81eb392654b663d518bba40e6..0000000000000000000000000000000000000000
--- a/conversations/conv_033299.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.067675376238697,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7607-89899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
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-      "real_speaker_id": "28",
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-      "utterance_id": "7607-89899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
-      "real_speaker_id": "7607",
-      "position_frames": 260589
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/28-12332.flac |",
-      "real_speaker_id": "28",
-      "position_frames": 70130
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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\ No newline at end of file
diff --git a/conversations/conv_033302.json b/conversations/conv_033302.json
deleted file mode 100644
index be0ca3cf36dbea955495522963b9688adb30e0de..0000000000000000000000000000000000000000
--- a/conversations/conv_033302.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287363.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "2816",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1334-135589.flac |",
-      "real_speaker_id": "1334",
-      "position_frames": 143843
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-  ],
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-      "start_time": 0,
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033305.json b/conversations/conv_033305.json
deleted file mode 100644
index 2b19b577a1139eceda9ca471592fa3c27402cbdb..0000000000000000000000000000000000000000
--- a/conversations/conv_033305.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295533.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
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-      "real_speaker_id": "568",
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-    {
-      "segment_id": "seg0006",
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-      "speaker_id": "8587"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033309.json b/conversations/conv_033309.json
deleted file mode 100644
index 57680263056333ef1b9db49dae5fa29ce080371c..0000000000000000000000000000000000000000
--- a/conversations/conv_033309.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 54431
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-  "background_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_033313.json b/conversations/conv_033313.json
deleted file mode 100644
index 9e0cdf5c7c2d82695c6eea4011d841d3026e2b70..0000000000000000000000000000000000000000
--- a/conversations/conv_033313.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.058450534057535,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-100174.flac |",
-      "real_speaker_id": "4697",
-      "position_frames": 0
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-      "start_time": 4.335100065682228,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-150458.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-100174.flac |",
-      "real_speaker_id": "4697",
-      "position_frames": 59292
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.940374022860418,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-150458.flac |",
-      "real_speaker_id": "1633",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033314.json b/conversations/conv_033314.json
deleted file mode 100644
index ee4b17c8a5ffb311e79de98cd68dc343ab6e5314..0000000000000000000000000000000000000000
--- a/conversations/conv_033314.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.605581914846248,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "2407",
-      "position_frames": 0
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-      "real_speaker_id": "4955",
-      "position_frames": 0
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-      "real_speaker_id": "2407",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/227-129974.flac |",
-      "real_speaker_id": "227",
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_033325.json b/conversations/conv_033325.json
deleted file mode 100644
index 5a710f7a2670fbe9729db05fd0ef8f352ca3caba..0000000000000000000000000000000000000000
--- a/conversations/conv_033325.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1107-133254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133254.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133254.flac |",
-      "real_speaker_id": "1107",
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-    {
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-      "utterance_id": "1633-141584",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-141584.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.89284670142156,
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-      "utterance_id": "1107-134311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-134311.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133254.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 154419
-    },
-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_033329.json b/conversations/conv_033329.json
deleted file mode 100644
index c90d47ac915f8ebb06062afdcadb2ce0b55c227f..0000000000000000000000000000000000000000
--- a/conversations/conv_033329.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5198-204975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204975.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.861398143403884,
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-      "real_speaker_id": "3417",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "5198-204974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204974.flac |",
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-      "position_frames": 0
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-      "utterance_id": "5628-47240",
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-      "real_speaker_id": "5628",
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-      "utterance_id": "5198-204974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204974.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 56156
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.003627087201153,
-      "end_time": 32.0,
-      "duration": 0.9963729127988472,
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-      "overlap": false,
-      "utterance_id": "3417-6522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3417-6522.flac |",
-      "real_speaker_id": "3417",
-      "position_frames": 82742
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3417/laugh/0047.wav",
-      "duration": 1.24,
-      "start_time": 2.439317096398712,
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\ No newline at end of file
diff --git a/conversations/conv_033333.json b/conversations/conv_033333.json
deleted file mode 100644
index 553b9f3ce3969f695a557460cd07983a21e07400..0000000000000000000000000000000000000000
--- a/conversations/conv_033333.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "4734-220951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220951.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.690359638848531,
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-      "utterance_id": "712-123615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6674-71400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6674-71400.flac |",
-      "real_speaker_id": "6674",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 67224
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-    {
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-      "speaker_id": 1,
-      "start_time": 22.32357487533597,
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-      "overlap": false,
-      "utterance_id": "4734-220952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220952.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6674-71396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6674-71396.flac |",
-      "real_speaker_id": "6674",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "event_class": "Dishes",
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-    {
-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "cough",
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-      "speaker_id": "6674"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033343.json b/conversations/conv_033343.json
deleted file mode 100644
index 9b8006ee927a9fc3d0bbefb4dd1e867419a9858e..0000000000000000000000000000000000000000
--- a/conversations/conv_033343.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 54543
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59239.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2740-162051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 75989
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033344.json b/conversations/conv_033344.json
deleted file mode 100644
index 79f7652659a878d77ded58dfc7de5d558f9efcdd..0000000000000000000000000000000000000000
--- a/conversations/conv_033344.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-92940.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1290/laugh/0080.wav",
-      "duration": 1.74,
-      "start_time": 10.845382260619008,
-      "speaker_id": "1290"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3587/laugh/0040.wav",
-      "duration": 0.88,
-      "start_time": 18.155419397141518,
-      "speaker_id": "3587"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033348.json b/conversations/conv_033348.json
deleted file mode 100644
index 9f3370ac11fed60d07cabf2f691bbd628c911f13..0000000000000000000000000000000000000000
--- a/conversations/conv_033348.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.949059011048165,
-      "duration": 4.949059011048165,
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-      "overlap": false,
-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.687971448242957,
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-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 79184
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "6724-73990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73990.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.27704739284522,
-      "end_time": 21.467514197902908,
-      "duration": 5.190466805057688,
-      "start_frame": 260432,
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-      "overlap": false,
-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 155431
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.67393881417854,
-      "end_time": 27.62927370780851,
-      "duration": 5.955334893629971,
-      "start_frame": 346783,
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-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 238478
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.54690834898762,
-      "end_time": 32.0,
-      "duration": 3.453091651012379,
-      "start_frame": 456750,
-      "duration_frames": 55249,
-      "overlap": false,
-      "utterance_id": "951-122301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
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-      "start_time": 10.59089268621558,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6724/laugh/0028.wav",
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-      "start_time": 10.022464404436844,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6724/cough/0074.wav",
-      "duration": 0.9898579210302443,
-      "start_time": 11.58515271652554,
-      "speaker_id": "6724"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033352.json b/conversations/conv_033352.json
deleted file mode 100644
index c126adb9735dc65ad466ee6904cf6a60ac3f8f77..0000000000000000000000000000000000000000
--- a/conversations/conv_033352.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7190-90542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90542.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 0
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-      "real_speaker_id": "7495",
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-      "utterance_id": "7190-90543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90543.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 82755
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "3905-149791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.706648892552074,
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-      "duration": 3.2933511074479256,
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-      "utterance_id": "7190-90542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90542.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 82846
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033355.json b/conversations/conv_033355.json
deleted file mode 100644
index a4cbe51109e1cc8dc46de3d12110b1f1cc86846d..0000000000000000000000000000000000000000
--- a/conversations/conv_033355.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 30.6,
-      "speaker_id": "7131"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033364.json b/conversations/conv_033364.json
deleted file mode 100644
index 328acd0b0e1e01d2f046fba18b6a1f89e151f4ae..0000000000000000000000000000000000000000
--- a/conversations/conv_033364.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7512/laugh/0007.wav",
-      "duration": 1.4,
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-      "speaker_id": "7512"
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 14.655638872477066,
-      "speaker_id": "6735"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4734/laugh/0060.wav",
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-      "start_time": 25.252114852327647,
-      "speaker_id": "4734"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7512/laugh/0003.wav",
-      "duration": 0.5466540247376084,
-      "start_time": 29.846337119002555,
-      "speaker_id": "7512"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033368.json b/conversations/conv_033368.json
deleted file mode 100644
index 28bee61310237d3b08b029f4d4708914d1badab4..0000000000000000000000000000000000000000
--- a/conversations/conv_033368.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.823100174473002,
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-      "utterance_id": "6686-216563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6686-216563.flac |",
-      "real_speaker_id": "6686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.057539314804767,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "6686-216563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6686-216563.flac |",
-      "real_speaker_id": "6686",
-      "position_frames": 77169
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 14.568706954267379,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-128145.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.170650635431066,
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-      "utterance_id": "6686-216563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6686-216563.flac |",
-      "real_speaker_id": "6686",
-      "position_frames": 128743
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.07977345117194,
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-      "utterance_id": "1473-135657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 81293
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.759184117433854,
-      "end_time": 32.0,
-      "duration": 2.240815882566146,
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-      "utterance_id": "1271-128145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-128145.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 93187
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "duration": 1.28,
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-}
\ No newline at end of file
diff --git a/conversations/conv_033369.json b/conversations/conv_033369.json
deleted file mode 100644
index 369e8013f82e3d94e7bf4cd2db2e7aa55264692d..0000000000000000000000000000000000000000
--- a/conversations/conv_033369.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2297-174934.flac |",
-      "real_speaker_id": "2297",
-      "position_frames": 0
-    },
-    {
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-      "overlap": false,
-      "utterance_id": "2297-28913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2297-28913.flac |",
-      "real_speaker_id": "2297",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.21721144401498,
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-      "utterance_id": "1085-138296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-138296.flac |",
-      "real_speaker_id": "1085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.05782322647502,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2297-8377.flac |",
-      "real_speaker_id": "2297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.268908098876494,
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-      "utterance_id": "2297-8377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2297-8377.flac |",
-      "real_speaker_id": "2297",
-      "position_frames": 97487
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2297/laugh/0128.wav",
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-      "start_time": 30.179367628567526,
-      "speaker_id": "2297"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033372.json b/conversations/conv_033372.json
deleted file mode 100644
index e0652bee5e00514baed9878da722c2aecd030ca7..0000000000000000000000000000000000000000
--- a/conversations/conv_033372.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6540-62512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-62512.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.373250810162823,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6540-62512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-62512.flac |",
-      "real_speaker_id": "6540",
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-    {
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-      "speaker_id": 2,
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-      "real_speaker_id": "505",
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-    {
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-      "real_speaker_id": "8183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "6540",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "cough",
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-      "start_time": 10.359952688038243,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033387.json b/conversations/conv_033387.json
deleted file mode 100644
index 9c318a53fe8a02ba3899cde76aa8c4338d794000..0000000000000000000000000000000000000000
--- a/conversations/conv_033387.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.16739098738435,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.000673866418924,
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-      "overlap": false,
-      "utterance_id": "770-134592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-134592.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.837925320037412,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123507.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-134592.flac |",
-      "real_speaker_id": "770",
-      "position_frames": 80010
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6694",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/770-43321.flac |",
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-      "segment_id": "seg0005",
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-      "start_time": 27.316719745489994,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 57776
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "cough",
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-      "speaker_id": "770"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "6694"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033391.json b/conversations/conv_033391.json
deleted file mode 100644
index 358770777d214be39950ef307776b7e9402bf080..0000000000000000000000000000000000000000
--- a/conversations/conv_033391.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "5719-233352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 73639
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.06761590644247,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.49674543100305,
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-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 90079
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 58219
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "speaker_id": "3025"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033407.json b/conversations/conv_033407.json
deleted file mode 100644
index 908be17b2e22784268ae577c00d74a2cb9af078a..0000000000000000000000000000000000000000
--- a/conversations/conv_033407.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125349.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-91998.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125349.flac |",
-      "real_speaker_id": "542",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.98291006177204,
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-      "overlap": false,
-      "utterance_id": "7307-276146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-276146.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.493396145528028,
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-      "utterance_id": "542-125351",
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-      "real_speaker_id": "542",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.44604941468118,
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-      "utterance_id": "7307-91998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-91998.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 100026
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "speaker_id": "7307"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033410.json b/conversations/conv_033410.json
deleted file mode 100644
index dd6535a55b91d3014ee7a72cc9e89be2ec2d5f5a..0000000000000000000000000000000000000000
--- a/conversations/conv_033410.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
-      "real_speaker_id": "6236",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
-      "real_speaker_id": "6236",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6620",
-      "position_frames": 58241
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6236",
-      "position_frames": 148159
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "real_speaker_id": "6620",
-      "position_frames": 123032
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-  "background_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6236/laugh/0020.wav",
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\ No newline at end of file
diff --git a/conversations/conv_033411.json b/conversations/conv_033411.json
deleted file mode 100644
index d6450ff59cfaedf01f1970e5c4918afc53a6d5b3..0000000000000000000000000000000000000000
--- a/conversations/conv_033411.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7657-104717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
-      "real_speaker_id": "7657",
-      "position_frames": 163008
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-12465.flac |",
-      "real_speaker_id": "4659",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8476/cough/0067.wav",
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-      "speaker_id": "8476"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033427.json b/conversations/conv_033427.json
deleted file mode 100644
index fe4a04eec81fb2dc0349fe9bd66d5cd8495abb3c..0000000000000000000000000000000000000000
--- a/conversations/conv_033427.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-15255.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.13900854129133,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154825.flac |",
-      "real_speaker_id": "2518",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 12.084074843540414,
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-      "utterance_id": "6446-78193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-78193.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.24572475782753,
-      "end_time": 21.551425355311327,
-      "duration": 5.3057005974837965,
-      "start_frame": 259931,
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-      "overlap": false,
-      "utterance_id": "2518-154826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154826.flac |",
-      "real_speaker_id": "2518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.639879123078675,
-      "end_time": 27.914923326069754,
-      "duration": 5.275044202991078,
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-      "duration_frames": 84400,
-      "overlap": false,
-      "utterance_id": "6446-40571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40571.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.156563054347885,
-      "end_time": 32.0,
-      "duration": 3.8434369456521154,
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-      "utterance_id": "167-68704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-68704.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-      "speaker_id": "167"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033431.json b/conversations/conv_033431.json
deleted file mode 100644
index ad8f4c968ccc8753b840bfb0d2ce004e3b254ab1..0000000000000000000000000000000000000000
--- a/conversations/conv_033431.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3906-184005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-184005.flac |",
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-      "real_speaker_id": "5375",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5375",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.34538392819765,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 105728
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-      "segment_id": "seg0005",
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-      "utterance_id": "3906-191426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-191426.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_033446.json b/conversations/conv_033446.json
deleted file mode 100644
index 0310465d226e2d82ad3b1bc7d668102b8bd1cdfb..0000000000000000000000000000000000000000
--- a/conversations/conv_033446.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.001398315113775,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4015-4878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-4878.flac |",
-      "real_speaker_id": "4015",
-      "position_frames": 0
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-    {
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-      "utterance_id": "460-172359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172359.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033447.json b/conversations/conv_033447.json
deleted file mode 100644
index a4104e8537ebf7c266b16dd2b0cd7c7096b74b3d..0000000000000000000000000000000000000000
--- a/conversations/conv_033447.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-18532.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 1.7809764247617466,
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-      "utterance_id": "5513-39476",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39476.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 95747
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
-      "duration": 0.672108843537415,
-      "start_time": 1.4354391654589733
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5513/laugh/0000.wav",
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-      "event_class": "cough",
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-    {
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-      "duration": 1.74,
-      "start_time": 4.587572678160967,
-      "speaker_id": "8015"
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4455/laugh/0024.wav",
-      "duration": 1.28,
-      "start_time": 17.919106402199837,
-      "speaker_id": "4455"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "4455"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4455/laugh/0086.wav",
-      "duration": 1.06,
-      "start_time": 29.313235785461234,
-      "speaker_id": "4455"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033450.json b/conversations/conv_033450.json
deleted file mode 100644
index 12a8f28f094c56f022e7417a663db7bc33aaa152..0000000000000000000000000000000000000000
--- a/conversations/conv_033450.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0436585387573296,
-      "duration": 3.0436585387573296,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7708-296091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-296091.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 2.985979708081323,
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-      "utterance_id": "4396-33398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-33398.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.56876519626177,
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-      "duration_frames": 92852,
-      "overlap": true,
-      "utterance_id": "7708-290368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-290368.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-293973.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.815276956620323,
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-      "utterance_id": "152-87733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-87733.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-14564.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-290368.flac |",
-      "real_speaker_id": "7708",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "4396"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033466.json b/conversations/conv_033466.json
deleted file mode 100644
index df592ab97b29f80bedaba3aa27c20e86ee338c05..0000000000000000000000000000000000000000
--- a/conversations/conv_033466.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.2916881953961,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3896-134415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3896-134415.flac |",
-      "real_speaker_id": "3896",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.900157423766262,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4520-1805.flac |",
-      "real_speaker_id": "4520",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3896-134415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3896-134415.flac |",
-      "real_speaker_id": "3896",
-      "position_frames": 71328
-    },
-    {
-      "segment_id": "seg0003",
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-      "overlap": true,
-      "utterance_id": "1448-135894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1448-135894.flac |",
-      "real_speaker_id": "1448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.16694225795986,
-      "end_time": 31.2916881953961,
-      "duration": 5.1247459374362405,
-      "start_frame": 418671,
-      "duration_frames": 81995,
-      "overlap": false,
-      "utterance_id": "4520-1805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4520-1805.flac |",
-      "real_speaker_id": "4520",
-      "position_frames": 99507
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_7.wav",
-      "duration": 1.000907029478458,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3896/laugh/0056.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4520/cough/0008.wav",
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-      "start_time": 5.185491196158984,
-      "speaker_id": "4520"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1448/laugh/0075.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4520/laugh/0079.wav",
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-      "start_time": 25.31810894851472,
-      "speaker_id": "4520"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033470.json b/conversations/conv_033470.json
deleted file mode 100644
index 9105685498e93c2b6fa7b3c6a15096a0e4a24bb6..0000000000000000000000000000000000000000
--- a/conversations/conv_033470.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.108002192265744,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-10160.flac |",
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-      "position_frames": 0
-    },
-    {
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-    {
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_033482.json b/conversations/conv_033482.json
deleted file mode 100644
index 5a4208aaf615a5f28ca6608023996105a046f801..0000000000000000000000000000000000000000
--- a/conversations/conv_033482.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.93145791343475,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.633739855002533,
-      "duration": 6.633739855002533,
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-      "overlap": false,
-      "utterance_id": "4397-15668",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15668.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.388645933447215,
-      "end_time": 10.947289154173706,
-      "duration": 3.5586432207264918,
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-      "duration_frames": 56938,
-      "overlap": false,
-      "utterance_id": "3664-178366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-178366.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.059760089116455,
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-      "duration": 4.914549387946833,
-      "start_frame": 176956,
-      "duration_frames": 78632,
-      "overlap": false,
-      "utterance_id": "4397-15678",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15678.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.603011279969643,
-      "end_time": 20.43410388006279,
-      "duration": 3.831092600093146,
-      "start_frame": 265648,
-      "duration_frames": 61297,
-      "overlap": false,
-      "utterance_id": "7491-114606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-114606.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.6515023007858,
-      "end_time": 27.598275514660152,
-      "duration": 6.946773213874351,
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-      "utterance_id": "4397-15666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15666.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.908719643729768,
-      "end_time": 31.93145791343475,
-      "duration": 4.022738269704981,
-      "start_frame": 446539,
-      "duration_frames": 64363,
-      "overlap": false,
-      "utterance_id": "7491-110524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-110524.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4397/laugh/0085.wav",
-      "duration": 1.16,
-      "start_time": 6.91619901057434,
-      "speaker_id": "4397"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4397/laugh/0091.wav",
-      "duration": 1.1156307381333757,
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-      "speaker_id": "4397"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4397/cough/0069.wav",
-      "duration": 1.24,
-      "start_time": 19.285358080450735,
-      "speaker_id": "4397"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033485.json b/conversations/conv_033485.json
deleted file mode 100644
index d74c9535ebd4573bb0db19f3c265a669ca7f58f8..0000000000000000000000000000000000000000
--- a/conversations/conv_033485.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.962223699252295,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.799064955144023,
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-      "overlap": false,
-      "utterance_id": "589-146346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.093675080991669,
-      "end_time": 12.469586439450538,
-      "duration": 5.37591135845887,
-      "start_frame": 113498,
-      "duration_frames": 86014,
-      "overlap": false,
-      "utterance_id": "22-121140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121140.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.039198102161924,
-      "end_time": 18.026284138130976,
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-      "overlap": false,
-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.113154725519937,
-      "end_time": 24.299966245568275,
-      "duration": 5.1868115200483365,
-      "start_frame": 305810,
-      "duration_frames": 82988,
-      "overlap": false,
-      "utterance_id": "3245-169642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-169642.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.402747497597066,
-      "end_time": 30.962223699252295,
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-      "duration_frames": 104951,
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-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 79793
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/22/laugh/0011.wav",
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-      "start_time": 5.234928525052766,
-      "speaker_id": "22"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/589/laugh/0034.wav",
-      "duration": 1.36,
-      "start_time": 14.350008310500392,
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-    {
-      "event_class": "cough",
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-      "duration": 0.38950983403099737,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/589/laugh/0087.wav",
-      "duration": 1.24,
-      "start_time": 23.140238393156597,
-      "speaker_id": "589"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033489.json b/conversations/conv_033489.json
deleted file mode 100644
index 9c3b1a33567441574f9247f4e071397c3ac03e4d..0000000000000000000000000000000000000000
--- a/conversations/conv_033489.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.0066828271324,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 7.086184743531861,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
-      "real_speaker_id": "8441",
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-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 110752
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.671317020500146,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.926797075122003,
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-      "real_speaker_id": "8441",
-      "position_frames": 68017
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6912-70847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033493.json b/conversations/conv_033493.json
deleted file mode 100644
index 4731cfd0e7b9fd85dd8139dfd052f8b8f76da428..0000000000000000000000000000000000000000
--- a/conversations/conv_033493.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.239098631630895,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1291-138273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138273.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2198-133546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-133546.flac |",
-      "real_speaker_id": "2198",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130096.flac |",
-      "real_speaker_id": "810",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "810-130096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130096.flac |",
-      "real_speaker_id": "810",
-      "position_frames": 88989
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "810-130096",
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-      "real_speaker_id": "810",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_033494.json b/conversations/conv_033494.json
deleted file mode 100644
index f4e84631805df917af7292ee713c05d16f7d825e..0000000000000000000000000000000000000000
--- a/conversations/conv_033494.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2777.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 104383
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 96201
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.58353189535663,
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-      "utterance_id": "4108-2772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2772.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.82670690687038,
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-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-      "event_class": "cough",
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-      "start_time": 6.559467440405358,
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-      "event_class": "cough",
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-      "speaker_id": "4108"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033502.json b/conversations/conv_033502.json
deleted file mode 100644
index 983aa1a971d08e0a82e27e71108dae33d5481731..0000000000000000000000000000000000000000
--- a/conversations/conv_033502.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.453911544793712,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 4.003108106263975,
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-      "utterance_id": "4335-15081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15081.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.406770371927391,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15081.flac |",
-      "real_speaker_id": "4335",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6341-64956.flac |",
-      "real_speaker_id": "6341",
-      "position_frames": 92036
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-  ],
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_033503.json b/conversations/conv_033503.json
deleted file mode 100644
index 66aa127ba076d9c0bb0517617d576071ce93fc79..0000000000000000000000000000000000000000
--- a/conversations/conv_033503.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64292.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-123270.flac |",
-      "real_speaker_id": "176",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.03501228540845,
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-      "utterance_id": "8820-294113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294113.flac |",
-      "real_speaker_id": "8820",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.193063332784664,
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64291.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_033515.json b/conversations/conv_033515.json
deleted file mode 100644
index db51eaf4c0fc32bb2a32ad49bb9773e3edece489..0000000000000000000000000000000000000000
--- a/conversations/conv_033515.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.792695564579073,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "4321-27565",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-27565.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 0
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-    {
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-    {
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-      "utterance_id": "4321-27567",
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8587/cough/0119.wav",
-      "duration": 1.08,
-      "start_time": 6.550521574605183,
-      "speaker_id": "8587"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4321/laugh/0025.wav",
-      "duration": 1.24,
-      "start_time": 10.932915299806513,
-      "speaker_id": "4321"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8587/laugh/0132.wav",
-      "duration": 1.26,
-      "start_time": 19.16259688208914,
-      "speaker_id": "8587"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033519.json b/conversations/conv_033519.json
deleted file mode 100644
index 50afb6d3aee228cc1a15822f4f41a6dd2b36c443..0000000000000000000000000000000000000000
--- a/conversations/conv_033519.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.509084560541721,
-      "duration": 5.509084560541721,
-      "start_frame": 0,
-      "duration_frames": 88145,
-      "overlap": false,
-      "utterance_id": "4586-61776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-61776.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.951807548836124,
-      "end_time": 11.204868596966886,
-      "duration": 5.253061048130761,
-      "start_frame": 95228,
-      "duration_frames": 84048,
-      "overlap": false,
-      "utterance_id": "1265-135636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.742826332049804,
-      "end_time": 18.149809522264107,
-      "duration": 6.406983190214302,
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-      "duration_frames": 102511,
-      "overlap": false,
-      "utterance_id": "4586-19665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-19665.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.542595036377076,
-      "end_time": 23.844269043853398,
-      "duration": 5.301674007476323,
-      "start_frame": 296681,
-      "duration_frames": 84826,
-      "overlap": false,
-      "utterance_id": "1265-135636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 84048
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.365956429382614,
-      "end_time": 29.26747499506536,
-      "duration": 4.901518565682745,
-      "start_frame": 389855,
-      "duration_frames": 78424,
-      "overlap": false,
-      "utterance_id": "4586-19665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-19665.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 102511
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.389433829634843,
-      "end_time": 32.0,
-      "duration": 2.610566170365157,
-      "start_frame": 470230,
-      "duration_frames": 41769,
-      "overlap": false,
-      "utterance_id": "1265-135636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 168874
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 19.459087136596104,
-      "start_time": 10.777124068944348
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
-      "duration": 2.6844897959183673,
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4586/laugh/0074.wav",
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-      "speaker_id": "4586"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/cough/0050.wav",
-      "duration": 0.9447746627177902,
-      "start_time": 11.25394788464496,
-      "speaker_id": "1265"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/cough/0112.wav",
-      "duration": 0.5249634479602284,
-      "start_time": 17.908665174158962,
-      "speaker_id": "1265"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/laugh/0106.wav",
-      "duration": 1.2,
-      "start_time": 30.08526430220385,
-      "speaker_id": "1265"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033523.json b/conversations/conv_033523.json
deleted file mode 100644
index ff9220eb3ec9216fb80a868b816e6d736b336969..0000000000000000000000000000000000000000
--- a/conversations/conv_033523.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.095427915296263,
-      "duration": 6.095427915296263,
-      "start_frame": 0,
-      "duration_frames": 97526,
-      "overlap": false,
-      "utterance_id": "713-291178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.714597723144485,
-      "end_time": 12.555838036416144,
-      "duration": 5.84124031327166,
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-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.459246528584327,
-      "end_time": 18.56709047739818,
-      "duration": 5.107843948813854,
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-      "duration_frames": 81725,
-      "overlap": false,
-      "utterance_id": "713-291178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 97526
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.18740572819444,
-      "end_time": 25.688750817303273,
-      "duration": 6.501345089108831,
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-      "overlap": false,
-      "utterance_id": "168-129246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-129246.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.874785103938564,
-      "end_time": 30.176485683853393,
-      "duration": 4.301700579914828,
-      "start_frame": 413996,
-      "duration_frames": 68827,
-      "overlap": false,
-      "utterance_id": "713-291178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 179251
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.68769439025397,
-      "end_time": 32.0,
-      "duration": 1.31230560974603,
-      "start_frame": 491003,
-      "duration_frames": 20996,
-      "overlap": false,
-      "utterance_id": "168-129246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-129246.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 104021
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
-      "duration": 2.6844897959183673,
-      "start_time": 20.75179404397915
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-      "start_time": 27.648005171761497
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/713/cough/0027.wav",
-      "duration": 1.24,
-      "start_time": 6.134771912515715,
-      "speaker_id": "713"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/713/laugh/0100.wav",
-      "duration": 1.2,
-      "start_time": 15.801343313273927,
-      "speaker_id": "713"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/713/laugh/0050.wav",
-      "duration": 1.1274348555414577,
-      "start_time": 24.553936588430428,
-      "speaker_id": "713"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/168/laugh/0038.wav",
-      "duration": 1.32,
-      "start_time": 29.176621072722288,
-      "speaker_id": "168"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033528.json b/conversations/conv_033528.json
deleted file mode 100644
index 9ea4d40d6d7bd06f2a81995c298b94de5799a518..0000000000000000000000000000000000000000
--- a/conversations/conv_033528.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.443043033019479,
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-      "start_frame": 0,
-      "duration_frames": 71088,
-      "overlap": false,
-      "utterance_id": "2606-132102",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-132102.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.713171857566893,
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-      "utterance_id": "3379-132601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132601.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-67218.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.844811876126341,
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-      "duration_frames": 75713,
-      "overlap": false,
-      "utterance_id": "2606-130138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-130138.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6683-63841",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-63841.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.73240055812568,
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-      "utterance_id": "2606-130138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-130138.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 75713
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.643717614392237,
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-      "duration": 0.3562823856077628,
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-      "overlap": false,
-      "utterance_id": "6683-63839",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-63839.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2606/laugh/0026.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6683/laugh/0070.wav",
-      "duration": 1.637557215200248,
-      "start_time": 30.362442784799754,
-      "speaker_id": "6683"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033535.json b/conversations/conv_033535.json
deleted file mode 100644
index 141d748592a46f5b4fdee9aa95f92932ddb9538e..0000000000000000000000000000000000000000
--- a/conversations/conv_033535.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.650323649626635,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "duration": 4.242932135288067,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1634-141571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1634-141571.flac |",
-      "real_speaker_id": "1634",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.689620143068371,
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-      "utterance_id": "868-131294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131294.flac |",
-      "real_speaker_id": "868",
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-    {
-      "segment_id": "seg0002",
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-    {
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-    {
-      "segment_id": "seg0004",
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-      "overlap": false,
-      "utterance_id": "7762-280917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7762-280917.flac |",
-      "real_speaker_id": "7762",
-      "position_frames": 104080
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.4488207195609,
-      "end_time": 31.650323649626635,
-      "duration": 5.201502930065738,
-      "start_frame": 423181,
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-      "overlap": false,
-      "utterance_id": "1634-141571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1634-141571.flac |",
-      "real_speaker_id": "1634",
-      "position_frames": 67886
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
-      "duration": 16.838049886621317,
-      "start_time": 10.771598953336333
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
-      "duration": 2.5680725623582767,
-      "start_time": 8.832980356779524
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1634/laugh/0040.wav",
-      "duration": 0.9224627243162687,
-      "start_time": 2.134015726188651,
-      "speaker_id": "1634"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033539.json b/conversations/conv_033539.json
deleted file mode 100644
index 5018a8e6ee9ef6255b348dc781d14a5aca94d116..0000000000000000000000000000000000000000
--- a/conversations/conv_033539.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.193550017411766,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.9189451031972604,
-      "duration": 3.9189451031972604,
-      "start_frame": 0,
-      "duration_frames": 62703,
-      "overlap": false,
-      "utterance_id": "2568-156116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156116.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.8167297975590975,
-      "end_time": 7.370071726671455,
-      "duration": 3.553341929112358,
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-      "duration_frames": 56853,
-      "overlap": true,
-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 7.998392415893813,
-      "end_time": 13.223932820720119,
-      "duration": 5.225540404826306,
-      "start_frame": 127974,
-      "duration_frames": 83608,
-      "overlap": false,
-      "utterance_id": "2416-152137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.88032994434537,
-      "end_time": 19.620999874183088,
-      "duration": 5.740669929837718,
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-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 56853
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.77082091127286,
-      "end_time": 23.440168384405695,
-      "duration": 3.6693474731328326,
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-      "overlap": false,
-      "utterance_id": "2568-156115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156115.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.86494184242936,
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-      "start_frame": 381839,
-      "duration_frames": 94284,
-      "overlap": false,
-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 148703
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.704597050595233,
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-      "duration": 1.4889529668165338,
-      "start_frame": 475273,
-      "duration_frames": 23823,
-      "overlap": true,
-      "utterance_id": "2568-156117",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156117.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
-      "duration": 0.6206349206349207,
-      "start_time": 24.334266464355643
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
-      "duration": 0.41732426303854875,
-      "start_time": 28.135469030910365
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2568/laugh/0061.wav",
-      "duration": 1.228581996468319,
-      "start_time": 0,
-      "speaker_id": "2568"
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-    {
-      "event_class": "cough",
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-      "duration": 0.3612582683965113,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2568/laugh/0046.wav",
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-      "speaker_id": "2568"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7416/laugh/0011.wav",
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-    {
-      "event_class": "cough",
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-      "start_time": 27.404177466536996,
-      "speaker_id": "7416"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2568/laugh/0004.wav",
-      "duration": 1.042043432165062,
-      "start_time": 30.957956567834938,
-      "speaker_id": "2568"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2568/cough/0065.wav",
-      "duration": 1.04,
-      "start_time": 29.78299339970438,
-      "speaker_id": "2568"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033542.json b/conversations/conv_033542.json
deleted file mode 100644
index b2729707848357ee50b3a8cead74f57a462f733c..0000000000000000000000000000000000000000
--- a/conversations/conv_033542.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.111111724550632,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.406645469678026,
-      "duration": 4.406645469678026,
-      "start_frame": 0,
-      "duration_frames": 70506,
-      "overlap": false,
-      "utterance_id": "2624-88360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.216057901748624,
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-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.90813180756695,
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-      "duration_frames": 66666,
-      "overlap": true,
-      "utterance_id": "956-127929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127929.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.450760000025927,
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-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 74591
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.932461990387086,
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-      "duration": 5.747808978182795,
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-      "utterance_id": "2624-173598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-173598.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.734417269728677,
-      "end_time": 31.111111724550632,
-      "duration": 4.376694454821955,
-      "start_frame": 427750,
-      "duration_frames": 70027,
-      "overlap": true,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 172500
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 28.55065810659708,
-      "start_time": 3.0965397668873926
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-    {
-      "event_class": "Blender",
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-      "duration": 3.1953812178630217,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2624/laugh/0057.wav",
-      "duration": 1.133888577477388,
-      "start_time": 0,
-      "speaker_id": "2624"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/laugh/0048.wav",
-      "duration": 1.36,
-      "start_time": 18.53284176431542,
-      "speaker_id": "845"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/laugh/0026.wav",
-      "duration": 0.6572259070192015,
-      "start_time": 28.215893674345672,
-      "speaker_id": "845"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033554.json b/conversations/conv_033554.json
deleted file mode 100644
index 95661e5032488e6a53c9e23ea6a109d89ad172fa..0000000000000000000000000000000000000000
--- a/conversations/conv_033554.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.579512160547566,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "448-122800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.9102499375118995,
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-      "duration_frames": 83240,
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-      "utterance_id": "5285-48598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5285-48598.flac |",
-      "real_speaker_id": "5285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "209-4733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/209-4733.flac |",
-      "real_speaker_id": "209",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.315896943136863,
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-      "utterance_id": "5285-48598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5285-48598.flac |",
-      "real_speaker_id": "5285",
-      "position_frames": 83240
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.399467250609714,
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-      "utterance_id": "448-122800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-122800.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 81930
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.41677574096691,
-      "end_time": 31.579512160547566,
-      "duration": 5.162736419580655,
-      "start_frame": 422668,
-      "duration_frames": 82603,
-      "overlap": false,
-      "utterance_id": "5285-48598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5285-48598.flac |",
-      "real_speaker_id": "5285",
-      "position_frames": 151657
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 13.47824377803013,
-      "start_time": 8.540301864807535
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_10.wav",
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-      "start_time": 11.963232237834557
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/448/laugh/0114.wav",
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-      "start_time": 5.359924753897829,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/209/cough/0079.wav",
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-      "start_time": 10.504191169300967,
-      "speaker_id": "209"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/448/laugh/0118.wav",
-      "duration": 1.16,
-      "start_time": 23.494961367428733,
-      "speaker_id": "448"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5285/cough/0077.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "5285"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033555.json b/conversations/conv_033555.json
deleted file mode 100644
index 4890b5eafaea872e848ccfda4aba4c5118fe5868..0000000000000000000000000000000000000000
--- a/conversations/conv_033555.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.32098404785787,
-      "duration": 4.32098404785787,
-      "start_frame": 0,
-      "duration_frames": 69135,
-      "overlap": false,
-      "utterance_id": "5740-97610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97610.flac |",
-      "real_speaker_id": "5740",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97593.flac |",
-      "real_speaker_id": "5740",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.065769192140252,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-127997.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-39910.flac |",
-      "real_speaker_id": "5740",
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-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-122804.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.292080133377866,
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-      "duration": 1.7079198666221345,
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-      "utterance_id": "5740-97610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97610.flac |",
-      "real_speaker_id": "5740",
-      "position_frames": 69135
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_4.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "313"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5740/laugh/0101.wav",
-      "duration": 1.3010786612225784,
-      "start_time": 24.234401373672878,
-      "speaker_id": "5740"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/313/laugh/0185.wav",
-      "duration": 1.2,
-      "start_time": 29.907443082643457,
-      "speaker_id": "313"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033558.json b/conversations/conv_033558.json
deleted file mode 100644
index afa7ed119b292e77500992b997019b5b4ba36f79..0000000000000000000000000000000000000000
--- a/conversations/conv_033558.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.613905426966336,
-      "duration": 5.613905426966336,
-      "start_frame": 0,
-      "duration_frames": 89822,
-      "overlap": false,
-      "utterance_id": "83-3054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.1203852091250495,
-      "end_time": 10.803192617630142,
-      "duration": 4.6828074085050915,
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-      "utterance_id": "6676-275138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-275138.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.206205940257487,
-      "end_time": 15.832318087048776,
-      "duration": 4.626112146791289,
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-      "duration_frames": 74017,
-      "overlap": false,
-      "utterance_id": "83-11691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-11691.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.389643542032648,
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-      "overlap": false,
-      "utterance_id": "6676-280387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-280387.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.27559207058462,
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-      "utterance_id": "8382-294774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.468024790442193,
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-      "duration": 3.5319752095578067,
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-      "overlap": false,
-      "utterance_id": "6676-71414",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-71414.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.08,
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-    {
-      "event_class": "cough",
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-      "duration": 1.22,
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-      "speaker_id": "6676"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.02,
-      "start_time": 27.721500708218734,
-      "speaker_id": "8382"
-    },
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-      "start_time": 31.019313428078128,
-      "speaker_id": "6676"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033562.json b/conversations/conv_033562.json
deleted file mode 100644
index 8523cf49af495d4aa13fe8dc96e8d5e294e31d38..0000000000000000000000000000000000000000
--- a/conversations/conv_033562.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.582647110587935,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "587-54108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-54108.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.1356470077353205,
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-      "duration": 5.531153455833724,
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-      "duration_frames": 88498,
-      "overlap": false,
-      "utterance_id": "1028-133393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133393.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.035720120344237,
-      "end_time": 17.56881034733735,
-      "duration": 5.533090226993113,
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-      "duration_frames": 88529,
-      "overlap": false,
-      "utterance_id": "7837-109173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.85158613620564,
-      "end_time": 23.98277914935528,
-      "duration": 6.131193013149639,
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-      "duration_frames": 98099,
-      "overlap": true,
-      "utterance_id": "587-41611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41611.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.139460350728307,
-      "end_time": 31.582647110587935,
-      "duration": 6.443186759859627,
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-      "duration_frames": 103090,
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-      "utterance_id": "1028-133393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133393.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 88498
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7837/laugh/0088.wav",
-      "duration": 1.08,
-      "start_time": 17.568966129079673,
-      "speaker_id": "7837"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1028/cough/0081.wav",
-      "duration": 0.4355515241197005,
-      "start_time": 31.5644484758803,
-      "speaker_id": "1028"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033569.json b/conversations/conv_033569.json
deleted file mode 100644
index df9ba270298bd20dbf30d5e5042b6c27e5e91d64..0000000000000000000000000000000000000000
--- a/conversations/conv_033569.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.954109937865044,
-      "duration": 3.954109937865044,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "25-123319",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-123319.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.548506312647429,
-      "end_time": 9.563647472922172,
-      "duration": 5.015141160274743,
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-      "duration_frames": 80242,
-      "overlap": false,
-      "utterance_id": "7197-66277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.171787386105127,
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-      "duration_frames": 68482,
-      "overlap": false,
-      "utterance_id": "25-88353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/25-88353.flac |",
-      "real_speaker_id": "25",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.86401231015307,
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-      "duration": 5.72694109159653,
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-      "utterance_id": "5296-26679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.746420881388225,
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-      "real_speaker_id": "25",
-      "position_frames": 63265
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5296-26680",
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-      "real_speaker_id": "5296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.421828571467604,
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-      "duration": 0.5781714285323964,
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-      "overlap": false,
-      "utterance_id": "5296-26679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 91631
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "Alarm_bell_ringing",
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-      "speaker_id": "25"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7197/laugh/0023.wav",
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-      "start_time": 3.4273663499784144,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/25/laugh/0075.wav",
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-      "speaker_id": "5296"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033574.json b/conversations/conv_033574.json
deleted file mode 100644
index c859c408e58d2dec9515734c32d14ae2f3a8e68e..0000000000000000000000000000000000000000
--- a/conversations/conv_033574.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.374208807819674,
-      "duration": 4.374208807819674,
-      "start_frame": 0,
-      "duration_frames": 69987,
-      "overlap": false,
-      "utterance_id": "8095-274345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274345.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.183919617090636,
-      "end_time": 11.032251193485815,
-      "duration": 5.848331576395179,
-      "start_frame": 82942,
-      "duration_frames": 93573,
-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.71701466545837,
-      "end_time": 16.225600957206712,
-      "duration": 4.508586291748342,
-      "start_frame": 187472,
-      "duration_frames": 72137,
-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 93573
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.883320991107036,
-      "end_time": 21.943846585280532,
-      "duration": 6.0605255941734955,
-      "start_frame": 254133,
-      "duration_frames": 96968,
-      "overlap": true,
-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.052587301009922,
-      "end_time": 27.434410294876827,
-      "duration": 5.381822993866907,
-      "start_frame": 352841,
-      "duration_frames": 86109,
-      "overlap": true,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 165710
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.67497501620233,
-      "end_time": 32.0,
-      "duration": 3.3250249837976718,
-      "start_frame": 458799,
-      "duration_frames": 53200,
-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 251819
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
-      "start_time": 20.98465244504348
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
-      "duration": 1.8591815424186802,
-      "start_time": 27.900848913256553
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3540/laugh/0075.wav",
-      "duration": 0.66379324667445,
-      "start_time": 30.71070878284658,
-      "speaker_id": "3540"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033578.json b/conversations/conv_033578.json
deleted file mode 100644
index ae4d878262a080ac57404dffdf614ac64de25696..0000000000000000000000000000000000000000
--- a/conversations/conv_033578.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0362528611581987,
-      "duration": 3.0362528611581987,
-      "start_frame": 0,
-      "duration_frames": 48580,
-      "overlap": false,
-      "utterance_id": "4973-44575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-44575.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7480047515037582,
-      "end_time": 8.090585487017803,
-      "duration": 4.342580735514044,
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-      "duration_frames": 69481,
-      "overlap": false,
-      "utterance_id": "7342-254918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-254918.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.311035704536888,
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-      "duration": 4.1756187434500145,
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-      "overlap": false,
-      "utterance_id": "4973-24514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24514.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.977904253762635,
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-      "duration_frames": 76370,
-      "overlap": false,
-      "utterance_id": "7342-254918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-254918.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 69481
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.950693235633405,
-      "end_time": 23.36597058436429,
-      "duration": 5.415277348730886,
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-      "duration_frames": 86644,
-      "overlap": false,
-      "utterance_id": "4973-24516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24516.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.734913782542584,
-      "end_time": 30.525337843262914,
-      "duration": 6.790424060720329,
-      "start_frame": 379758,
-      "duration_frames": 108646,
-      "overlap": true,
-      "utterance_id": "4973-24515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24515.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.328785387534456,
-      "end_time": 32.0,
-      "duration": 0.671214612465544,
-      "start_frame": 501260,
-      "duration_frames": 10739,
-      "overlap": false,
-      "utterance_id": "6550-53343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53343.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
-      "duration": 0.19673469387755102,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4973/laugh/0014.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7342/laugh/0054.wav",
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-      "start_time": 16.777926684003116,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4973/laugh/0056.wav",
-      "duration": 1.2750313454762794,
-      "start_time": 23.42007368567059,
-      "speaker_id": "4973"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033579.json b/conversations/conv_033579.json
deleted file mode 100644
index 8ac983a8f88d087746679c3fa04decfafef012aa..0000000000000000000000000000000000000000
--- a/conversations/conv_033579.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1226-141268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141268.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.246607559013302,
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-      "utterance_id": "7097-73688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-73688.flac |",
-      "real_speaker_id": "7097",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "7097-73688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-73688.flac |",
-      "real_speaker_id": "7097",
-      "position_frames": 93356
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1226-141279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1226-141268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141268.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 87069
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7367/laugh/0053.wav",
-      "duration": 1.44,
-      "start_time": 27.06986175743921,
-      "speaker_id": "7367"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033581.json b/conversations/conv_033581.json
deleted file mode 100644
index fd50582bb6f85e5a071a37bbdaab02e75f490ca8..0000000000000000000000000000000000000000
--- a/conversations/conv_033581.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.05563327432258,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7702-292568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-292568.flac |",
-      "real_speaker_id": "7702",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.511779947802065,
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-      "overlap": true,
-      "utterance_id": "337-123033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/337-123033.flac |",
-      "real_speaker_id": "337",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7702-96101",
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-    {
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-  "background_events": [
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-  "paralinguistic_events": [
-    {
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-      "duration": 1.315379479179864,
-      "start_time": 18.026982398287743,
-      "speaker_id": "7702"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7702/cough/0075.wav",
-      "duration": 1.16,
-      "start_time": 22.11824275083902,
-      "speaker_id": "7702"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/664/laugh/0059.wav",
-      "duration": 1.14,
-      "start_time": 26.304750259529307,
-      "speaker_id": "664"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033586.json b/conversations/conv_033586.json
deleted file mode 100644
index 1082a10ffa169422fec6c98f794dbd0e95c29a10..0000000000000000000000000000000000000000
--- a/conversations/conv_033586.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.073831792375045,
-      "duration": 4.073831792375045,
-      "start_frame": 0,
-      "duration_frames": 65181,
-      "overlap": false,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.264585885488168,
-      "end_time": 10.538447838276602,
-      "duration": 6.273861952788433,
-      "start_frame": 68233,
-      "duration_frames": 100381,
-      "overlap": false,
-      "utterance_id": "2050-157659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.65577781938223,
-      "end_time": 14.53758175186923,
-      "duration": 3.8818039324869997,
-      "start_frame": 170492,
-      "duration_frames": 62108,
-      "overlap": false,
-      "utterance_id": "7276-284424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.770872616327637,
-      "end_time": 21.257793184301033,
-      "duration": 6.486920567973396,
-      "start_frame": 236333,
-      "duration_frames": 103790,
-      "overlap": false,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 65181
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.029255077958922,
-      "end_time": 27.200734833196677,
-      "duration": 5.171479755237753,
-      "start_frame": 352468,
-      "duration_frames": 82743,
-      "overlap": false,
-      "utterance_id": "2050-157659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 100381
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.86069132861659,
-      "end_time": 32.0,
-      "duration": 4.139308671383411,
-      "start_frame": 445771,
-      "duration_frames": 66228,
-      "overlap": false,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 168971
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
-      "duration": 1.3083610533609251,
-      "start_time": 21.5966250568566
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1943/laugh/0001.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "1943"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1943/cough/0016.wav",
-      "duration": 0.5449396930166136,
-      "start_time": 31.455060306983388,
-      "speaker_id": "1943"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033590.json b/conversations/conv_033590.json
deleted file mode 100644
index 7460e1641a11fdb281748183922273782f39273d..0000000000000000000000000000000000000000
--- a/conversations/conv_033590.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.846497492526797,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.860605140420714,
-      "duration": 4.860605140420714,
-      "start_frame": 0,
-      "duration_frames": 77769,
-      "overlap": false,
-      "utterance_id": "8250-279777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-279777.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.7418901670874245,
-      "end_time": 12.282407135590963,
-      "duration": 6.540516968503539,
-      "start_frame": 91870,
-      "duration_frames": 104648,
-      "overlap": false,
-      "utterance_id": "1154-134887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134887.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.555900771663747,
-      "end_time": 19.79319436505784,
-      "duration": 6.237293593394092,
-      "start_frame": 216894,
-      "duration_frames": 99796,
-      "overlap": false,
-      "utterance_id": "8250-279777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-279777.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 77769
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.11195974927122,
-      "end_time": 26.572589238713643,
-      "duration": 6.460629489442422,
-      "start_frame": 321791,
-      "duration_frames": 103370,
-      "overlap": false,
-      "utterance_id": "1154-129976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129976.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.098634804171937,
-      "end_time": 30.846497492526797,
-      "duration": 3.747862688354861,
-      "start_frame": 433578,
-      "duration_frames": 59965,
-      "overlap": false,
-      "utterance_id": "4104-12526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-12526.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
-      "duration": 4.826104183949251,
-      "start_time": 4.001785944559537
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8250/laugh/0019.wav",
-      "duration": 0.88,
-      "start_time": 4.994555155021727,
-      "speaker_id": "8250"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1154/cough/0046.wav",
-      "duration": 0.7307240712117047,
-      "start_time": 12.457475706679883,
-      "speaker_id": "1154"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8250/cough/0055.wav",
-      "duration": 1.12,
-      "start_time": 19.94361942392381,
-      "speaker_id": "8250"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033596.json b/conversations/conv_033596.json
deleted file mode 100644
index faf1980085c60919121e2725f2d446ddd3af48d9..0000000000000000000000000000000000000000
--- a/conversations/conv_033596.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.598926004591473,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.530064848143374,
-      "duration": 4.530064848143374,
-      "start_frame": 0,
-      "duration_frames": 72481,
-      "overlap": false,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.208972646702594,
-      "end_time": 11.481774273005009,
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-      "overlap": false,
-      "utterance_id": "253-126864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-126864.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.229192025796095,
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-      "duration": 3.707991217825233,
-      "start_frame": 195667,
-      "duration_frames": 59327,
-      "overlap": false,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 72481
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.662909563961506,
-      "end_time": 21.033193433449288,
-      "duration": 4.370283869487783,
-      "start_frame": 266606,
-      "duration_frames": 69924,
-      "overlap": false,
-      "utterance_id": "253-124400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-124400.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.180861868393972,
-      "end_time": 26.09871952306115,
-      "duration": 4.917857654667175,
-      "start_frame": 338893,
-      "duration_frames": 78685,
-      "overlap": false,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 131808
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.281007121811665,
-      "end_time": 31.598926004591473,
-      "duration": 5.317918882779808,
-      "start_frame": 420496,
-      "duration_frames": 85086,
-      "overlap": false,
-      "utterance_id": "253-126864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-126864.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 100364
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
-      "duration": 1.0443083900226757,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/253/laugh/0050.wav",
-      "duration": 1.44,
-      "start_time": 17.164573674721066,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/253/cough/0085.wav",
-      "duration": 0.5170254941189567,
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-      "speaker_id": "253"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6875/cough/0072.wav",
-      "duration": 0.5683957054295439,
-      "start_time": 26.125015561067396,
-      "speaker_id": "6875"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033597.json b/conversations/conv_033597.json
deleted file mode 100644
index 3675f21d440a4e39ce7525213e26feb39ce787e8..0000000000000000000000000000000000000000
--- a/conversations/conv_033597.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.581305763077924,
-      "duration": 3.581305763077924,
-      "start_frame": 0,
-      "duration_frames": 57300,
-      "overlap": false,
-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.277909366543233,
-      "end_time": 8.587994848056814,
-      "duration": 4.310085481513581,
-      "start_frame": 68446,
-      "duration_frames": 68961,
-      "overlap": true,
-      "utterance_id": "4238-12895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12895.flac |",
-      "real_speaker_id": "4238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.710059656348474,
-      "end_time": 14.497233452653429,
-      "duration": 4.787173796304955,
-      "start_frame": 155360,
-      "duration_frames": 76594,
-      "overlap": false,
-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 57300
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.65512177676029,
-      "end_time": 19.506562825295973,
-      "duration": 4.8514410485356825,
-      "start_frame": 234481,
-      "duration_frames": 77623,
-      "overlap": true,
-      "utterance_id": "4238-12538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12538.flac |",
-      "real_speaker_id": "4238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.69858138644484,
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-      "duration_frames": 94800,
-      "overlap": false,
-      "utterance_id": "850-131003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131003.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.429628696053186,
-      "end_time": 32.0,
-      "duration": 4.570371303946814,
-      "start_frame": 438874,
-      "duration_frames": 73125,
-      "overlap": false,
-      "utterance_id": "4238-12895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12895.flac |",
-      "real_speaker_id": "4238",
-      "position_frames": 68961
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 1.1517037619914703,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_5.wav",
-      "duration": 0.2931972789115646,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4238/cough/0094.wav",
-      "duration": 1.181000510014843,
-      "start_time": 19.555163195279693,
-      "speaker_id": "4238"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033601.json b/conversations/conv_033601.json
deleted file mode 100644
index dbd1548d447a0262376aa50f785f7d4a385e281c..0000000000000000000000000000000000000000
--- a/conversations/conv_033601.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.937629074006292,
-      "duration": 5.937629074006292,
-      "start_frame": 0,
-      "duration_frames": 95002,
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-      "utterance_id": "8808-295459",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-295459.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 95002
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 91411
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "7055",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
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-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2127/laugh/0049.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033606.json b/conversations/conv_033606.json
deleted file mode 100644
index bb981d441d164089381de2754075a7157a856513..0000000000000000000000000000000000000000
--- a/conversations/conv_033606.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.151961840018485,
-      "end_time": 11.872630611366883,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8044-84206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84206.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.065896008312134,
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-      "overlap": false,
-      "utterance_id": "1926-147979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147979.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.146153631197905,
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-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 96535
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.011443608545857,
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-      "duration": 2.988556391454143,
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-      "utterance_id": "8044-84200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84200.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033610.json b/conversations/conv_033610.json
deleted file mode 100644
index 0cacaeb62e01080cd7f78e9d2228f84f6947b890..0000000000000000000000000000000000000000
--- a/conversations/conv_033610.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "2149-36146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-36146.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
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-      "utterance_id": "6609-111351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6609-111351.flac |",
-      "real_speaker_id": "6609",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "start_time": 20.366419408577173,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-8912.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "6609-111359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6609-111359.flac |",
-      "real_speaker_id": "6609",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.91132754500044,
-      "end_time": 32.0,
-      "duration": 1.0886724549995606,
-      "start_frame": 494581,
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-      "utterance_id": "2149-7239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-7239.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2149/laugh/0038.wav",
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-      "speaker_id": "2149"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033617.json b/conversations/conv_033617.json
deleted file mode 100644
index 847f4eea886c3b01b99a74bf6379e28cee1c44df..0000000000000000000000000000000000000000
--- a/conversations/conv_033617.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4767-66411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4767-66411.flac |",
-      "real_speaker_id": "4767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.0930853451684035,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4767-66411.flac |",
-      "real_speaker_id": "4767",
-      "position_frames": 71448
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "5242-35926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35926.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.65388055468811,
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-      "utterance_id": "5538-64717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5538-64717.flac |",
-      "real_speaker_id": "5538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4767-66411.flac |",
-      "real_speaker_id": "4767",
-      "position_frames": 152372
-    },
-    {
-      "segment_id": "seg0005",
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-      "end_time": 32.0,
-      "duration": 3.2838543603768926,
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-      "overlap": false,
-      "utterance_id": "5242-35921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 10.31396886012621,
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_13.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4767/laugh/0074.wav",
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-    },
-    {
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-      "duration": 1.1,
-      "start_time": 9.54769868618985,
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-    },
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5538/laugh/0019.wav",
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-      "speaker_id": "5538"
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-    {
-      "event_class": "cough",
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-      "duration": 1.06,
-      "start_time": 27.535314508878777,
-      "speaker_id": "5242"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033626.json b/conversations/conv_033626.json
deleted file mode 100644
index cc31427b805568880b5bf902d33c0d0eab314315..0000000000000000000000000000000000000000
--- a/conversations/conv_033626.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.421770648351204,
-      "duration": 5.421770648351204,
-      "start_frame": 0,
-      "duration_frames": 86748,
-      "overlap": false,
-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.150098084190298,
-      "end_time": 10.525447649730296,
-      "duration": 5.375349565539997,
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-      "duration_frames": 86005,
-      "overlap": true,
-      "utterance_id": "1469-168608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-168608.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.30247330051628,
-      "end_time": 17.088089058366926,
-      "duration": 4.785615757850645,
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-      "duration_frames": 76569,
-      "overlap": false,
-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.063686225494358,
-      "end_time": 22.420028671334848,
-      "duration": 5.356342445840489,
-      "start_frame": 273018,
-      "duration_frames": 85701,
-      "overlap": true,
-      "utterance_id": "1469-168608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-168608.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 86005
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.18682894434589,
-      "end_time": 27.84652765624964,
-      "duration": 4.659698711903752,
-      "start_frame": 370989,
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-      "overlap": false,
-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 86748
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.579005710662035,
-      "end_time": 32.0,
-      "duration": 3.4209942893379655,
-      "start_frame": 457264,
-      "duration_frames": 54735,
-      "overlap": false,
-      "utterance_id": "1469-168608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-168608.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 171706
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
-      "duration": 4.094172335600907,
-      "start_time": 27.26215180782046
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6358/cough/0072.wav",
-      "duration": 1.424473927634015,
-      "start_time": 5.572000984865857,
-      "speaker_id": "6358"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/49/cough/0119.wav",
-      "duration": 0.5782769637539877,
-      "start_time": 11.682301878989984,
-      "speaker_id": "49"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6358/cough/0097.wav",
-      "duration": 0.9508145855663364,
-      "start_time": 22.22064927326404,
-      "speaker_id": "6358"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1469/cough/0010.wav",
-      "duration": 0.88,
-      "start_time": 29.022487467989126,
-      "speaker_id": "1469"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033630.json b/conversations/conv_033630.json
deleted file mode 100644
index dcc1c16415941b525d20a035c631630e4f716d28..0000000000000000000000000000000000000000
--- a/conversations/conv_033630.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.210572034638904,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.275728319447398,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "428-125879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125879.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.579653172777321,
-      "end_time": 8.960389258735116,
-      "duration": 4.380736085957794,
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-      "duration_frames": 70091,
-      "overlap": false,
-      "utterance_id": "428-125879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125879.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 52411
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.85877059910709,
-      "end_time": 16.262229801491358,
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-      "duration_frames": 102455,
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-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.67029720576256,
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-      "duration_frames": 87504,
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-      "utterance_id": "6636-74110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6636-74110.flac |",
-      "real_speaker_id": "6636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.96341293035048,
-      "end_time": 29.65314176165432,
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-      "overlap": false,
-      "utterance_id": "4733-6398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4733-6398.flac |",
-      "real_speaker_id": "4733",
-      "position_frames": 102455
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.668366745286907,
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-      "duration": 1.5422052893519975,
-      "start_frame": 474693,
-      "duration_frames": 24675,
-      "overlap": true,
-      "utterance_id": "6636-74078",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6636-74078.flac |",
-      "real_speaker_id": "6636",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
-      "duration": 1.1462484764896286,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/428/laugh/0042.wav",
-      "duration": 1.3255753272347846,
-      "start_time": 0,
-      "speaker_id": "428"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/428/laugh/0054.wav",
-      "duration": 0.5551838455582453,
-      "start_time": 8.98166918463366,
-      "speaker_id": "428"
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-    {
-      "event_class": "cough",
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-      "duration": 0.6216698533492537,
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-    {
-      "event_class": "cough",
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-      "duration": 1.1419416832547677,
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-      "speaker_id": "6636"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4733/laugh/0075.wav",
-      "duration": 1.2,
-      "start_time": 29.67843878290761,
-      "speaker_id": "4733"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6636/laugh/0084.wav",
-      "duration": 1.32,
-      "start_time": 28.18712977323729,
-      "speaker_id": "6636"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6636/cough/0015.wav",
-      "duration": 1.28,
-      "start_time": 28.229897219489764,
-      "speaker_id": "6636"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033640.json b/conversations/conv_033640.json
deleted file mode 100644
index e67048f1cccaed855287d1fee22ed6f9db027d2c..0000000000000000000000000000000000000000
--- a/conversations/conv_033640.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2628-153964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153964.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177749.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "6925",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2628-153958",
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-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.360907317536167,
-      "end_time": 32.0,
-      "duration": 3.6390926824638328,
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 200452
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_033647.json b/conversations/conv_033647.json
deleted file mode 100644
index fa2b5b7dad3e7a7ff42b406f94b5d65610740f99..0000000000000000000000000000000000000000
--- a/conversations/conv_033647.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.71048309770079,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7315-86682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7315-86682.flac |",
-      "real_speaker_id": "7315",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3521-12715.flac |",
-      "real_speaker_id": "3521",
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-    {
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-      "real_speaker_id": "3521",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.82582553063421,
-      "end_time": 31.71048309770079,
-      "duration": 5.884657567066584,
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-      "utterance_id": "5746-48362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
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-      "start_time": 19.01658139781447
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7315/laugh/0022.wav",
-      "duration": 0.76,
-      "start_time": 0,
-      "speaker_id": "7315"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3521/laugh/0079.wav",
-      "duration": 1.36,
-      "start_time": 13.298858453253029,
-      "speaker_id": "3521"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5746/laugh/0072.wav",
-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "5746"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033651.json b/conversations/conv_033651.json
deleted file mode 100644
index 00a94ec294dc5f2feb9e779f4d9007ed9cf80cdc..0000000000000000000000000000000000000000
--- a/conversations/conv_033651.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.9654686777269985,
-      "duration": 4.9654686777269985,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1230-139216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139216.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.288058129900361,
-      "end_time": 12.699549601666526,
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-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.529675412274784,
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-      "duration_frames": 100470,
-      "overlap": false,
-      "utterance_id": "1230-139225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139225.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.481301160629798,
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-      "duration": 5.937522443494614,
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-      "duration_frames": 95000,
-      "overlap": false,
-      "utterance_id": "915-163372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163372.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.047007113924757,
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-      "utterance_id": "1230-139216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139216.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 79447
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.223357554300094,
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-      "duration": 0.7766424456999061,
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-      "utterance_id": "915-163372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163372.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 95000
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1230/laugh/0077.wav",
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-      "speaker_id": "1230"
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.6198329578014298,
-      "start_time": 25.372044562738804,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1230/cough/0180.wav",
-      "duration": 0.88,
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-      "speaker_id": "1230"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033656.json b/conversations/conv_033656.json
deleted file mode 100644
index 1923403ac913baf8c30d3e4d311587938fe437cc..0000000000000000000000000000000000000000
--- a/conversations/conv_033656.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1898-145720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145720.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.780440617271735,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47032.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.484012602951962,
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-      "overlap": false,
-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.547142151455027,
-      "end_time": 20.27734486702382,
-      "duration": 3.730202715568792,
-      "start_frame": 264754,
-      "duration_frames": 59683,
-      "overlap": false,
-      "utterance_id": "1898-145715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145715.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.6751311852753,
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-      "duration": 4.594295607886891,
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-      "overlap": true,
-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 73369
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.697174873748082,
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-      "duration": 5.302825126251918,
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-      "utterance_id": "1898-145715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145715.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 59683
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033667.json b/conversations/conv_033667.json
deleted file mode 100644
index 98cafe62e109baa7eda3d645cc30e80808f3781a..0000000000000000000000000000000000000000
--- a/conversations/conv_033667.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.568017683040461,
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-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.53061146198667,
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-      "utterance_id": "4813-248638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248638.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.83034585550876,
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-      "utterance_id": "4813-248638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248638.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 97420
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "5429",
-      "position_frames": 107731
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.702249413062862,
-      "end_time": 32.0,
-      "duration": 3.2977505869371377,
-      "start_frame": 459235,
-      "duration_frames": 52764,
-      "overlap": false,
-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 68226
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4813/laugh/0027.wav",
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-    {
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-      "duration": 1.24,
-      "start_time": 23.698738790913193,
-      "speaker_id": "4813"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033671.json b/conversations/conv_033671.json
deleted file mode 100644
index 9265284997025597188a03d6ed5fe74406543431..0000000000000000000000000000000000000000
--- a/conversations/conv_033671.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.71039562275965,
-      "duration": 4.71039562275965,
-      "start_frame": 0,
-      "duration_frames": 75366,
-      "overlap": false,
-      "utterance_id": "6904-262291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.520623536368418,
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-      "duration": 6.793279407843036,
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-      "duration_frames": 108692,
-      "overlap": true,
-      "utterance_id": "510-130103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130103.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.020584698600063,
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-      "duration_frames": 68711,
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-      "utterance_id": "6904-262291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 75366
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-181705.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 30.0477407157507,
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-      "duration": 1.9522592842493012,
-      "start_frame": 480763,
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-      "utterance_id": "6904-262291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 144077
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
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-      "start_time": 19.35320333211562
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_033684.json b/conversations/conv_033684.json
deleted file mode 100644
index 20e4c920681a94758906dca58f30b08e2d3a978c..0000000000000000000000000000000000000000
--- a/conversations/conv_033684.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.595572957886487,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66269.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.219697259007721,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66269.flac |",
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-      "position_frames": 89529
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-      "utterance_id": "4381-14904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14904.flac |",
-      "real_speaker_id": "4381",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "8197-278214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278214.flac |",
-      "real_speaker_id": "8197",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.65143287733615,
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-      "utterance_id": "4381-14904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14904.flac |",
-      "real_speaker_id": "4381",
-      "position_frames": 97524
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.657835358368768,
-      "end_time": 32.0,
-      "duration": 1.342164641631232,
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-      "utterance_id": "6583-66463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66463.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4381/laugh/0002.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "6583"
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\ No newline at end of file
diff --git a/conversations/conv_033688.json b/conversations/conv_033688.json
deleted file mode 100644
index dec07f0454261b9df30d9290674bf2f18faebf10..0000000000000000000000000000000000000000
--- a/conversations/conv_033688.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.553267358433217,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8118-268287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-268287.flac |",
-      "real_speaker_id": "8118",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
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-      "utterance_id": "8118-114476",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-114476.flac |",
-      "real_speaker_id": "8118",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26894.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 25.262491151120084,
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-      "utterance_id": "4806-26895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26895.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4806/laugh/0077.wav",
-      "duration": 1.22,
-      "start_time": 25.950810300045962,
-      "speaker_id": "4806"
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-    {
-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_033692.json b/conversations/conv_033692.json
deleted file mode 100644
index 958db8e210f7b31a8d834f894053829ac24b9e63..0000000000000000000000000000000000000000
--- a/conversations/conv_033692.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "125-121124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/125-121124.flac |",
-      "real_speaker_id": "125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141644.flac |",
-      "real_speaker_id": "1535",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "125-121342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/125-121342.flac |",
-      "real_speaker_id": "125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.596713556609252,
-      "end_time": 23.21706122507748,
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-      "start_frame": 297547,
-      "duration_frames": 73925,
-      "overlap": false,
-      "utterance_id": "125-121342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/125-121342.flac |",
-      "real_speaker_id": "125",
-      "position_frames": 111819
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.94249367602287,
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-      "utterance_id": "1535-141642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1535-141642.flac |",
-      "real_speaker_id": "1535",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.11427428254096,
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-      "duration": 3.8857257174590387,
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-      "overlap": false,
-      "utterance_id": "125-121124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/125-121124.flac |",
-      "real_speaker_id": "125",
-      "position_frames": 67441
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_033693.json b/conversations/conv_033693.json
deleted file mode 100644
index 8b90832d0e661c4fb589dc394f28f66fc2722679..0000000000000000000000000000000000000000
--- a/conversations/conv_033693.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "7337-92819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 10.47038978867382,
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-      "utterance_id": "622-128666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128666.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.935489434071378,
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-      "utterance_id": "2817-142371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128666.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 88985
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 48932,
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-      "utterance_id": "7337-92819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
-      "real_speaker_id": "7337",
-      "position_frames": 55473
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2817/laugh/0020.wav",
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-    {
-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_033702.json b/conversations/conv_033702.json
deleted file mode 100644
index 54e451023daad168d846b80796df7bb9056ce57a..0000000000000000000000000000000000000000
--- a/conversations/conv_033702.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.09572888793869,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.457917757400772,
-      "duration": 5.457917757400772,
-      "start_frame": 0,
-      "duration_frames": 87326,
-      "overlap": false,
-      "utterance_id": "4290-14526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.503746966649475,
-      "end_time": 11.41417711119814,
-      "duration": 5.910430144548665,
-      "start_frame": 88059,
-      "duration_frames": 94566,
-      "overlap": true,
-      "utterance_id": "5910-53143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53143.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.320548292359494,
-      "end_time": 17.20250862925288,
-      "duration": 4.881960336893385,
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-      "overlap": false,
-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.413095636462607,
-      "end_time": 21.97801157721298,
-      "duration": 4.564915940750372,
-      "start_frame": 278609,
-      "duration_frames": 73038,
-      "overlap": true,
-      "utterance_id": "8097-114971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-114971.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.840953798993418,
-      "end_time": 28.935743910560458,
-      "duration": 6.094790111567041,
-      "start_frame": 365455,
-      "duration_frames": 97516,
-      "overlap": false,
-      "utterance_id": "8097-114971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-114971.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 73038
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.902320271706557,
-      "end_time": 31.09572888793869,
-      "duration": 2.1934086162321336,
-      "start_frame": 462437,
-      "duration_frames": 35094,
-      "overlap": true,
-      "utterance_id": "4290-14526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 87326
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 28.58305192961655,
-      "start_time": 3.328127617445568
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.464616710019677,
-      "start_time": 3.916777662402877
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4290/laugh/0050.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "4290"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5910/laugh/0065.wav",
-      "duration": 0.698189264174745,
-      "start_time": 11.547465063088373,
-      "speaker_id": "5910"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5910/cough/0018.wav",
-      "duration": 0.7493849344748591,
-      "start_time": 8.665611939938557,
-      "speaker_id": "5910"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8097/cough/0093.wav",
-      "duration": 0.7585313162674938,
-      "start_time": 21.94260582907686,
-      "speaker_id": "8097"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4290/laugh/0055.wav",
-      "duration": 1.32,
-      "start_time": 27.535368066258805,
-      "speaker_id": "4290"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033705.json b/conversations/conv_033705.json
deleted file mode 100644
index 3588b2d35a3c941f8b22ef474859394e3c72f231..0000000000000000000000000000000000000000
--- a/conversations/conv_033705.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.37686942134552,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.700990158279108,
-      "duration": 4.700990158279108,
-      "start_frame": 0,
-      "duration_frames": 75215,
-      "overlap": false,
-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.147782515279128,
-      "end_time": 10.876522360558623,
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-      "overlap": false,
-      "utterance_id": "1383-130532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130532.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.076976406314476,
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-      "duration_frames": 77379,
-      "overlap": false,
-      "utterance_id": "7498-99122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99122.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.879433320482022,
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-      "duration": 4.010145998770961,
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-      "overlap": true,
-      "utterance_id": "2046-178027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-178027.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.259142800255976,
-      "end_time": 25.39487037009938,
-      "duration": 5.135727569843404,
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-      "duration_frames": 82171,
-      "overlap": true,
-      "utterance_id": "2046-178027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-178027.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 64162
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.976771685513363,
-      "end_time": 31.37686942134552,
-      "duration": 5.4000977358321585,
-      "start_frame": 415628,
-      "duration_frames": 86401,
-      "overlap": false,
-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 75215
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1383/laugh/0109.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1383/cough/0104.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "cough",
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-      "duration": 0.9554536976033192,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2046/laugh/0101.wav",
-      "duration": 0.5079301317028776,
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-      "speaker_id": "2046"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033713.json b/conversations/conv_033713.json
deleted file mode 100644
index 662a40f6c554ebbbd1c55fe156b1967fa07df410..0000000000000000000000000000000000000000
--- a/conversations/conv_033713.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1737-142396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-142396.flac |",
-      "real_speaker_id": "1737",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "5139",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163499.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
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-    {
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-      "utterance_id": "1737-142397",
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-      "real_speaker_id": "1737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.457270995408066,
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-      "overlap": false,
-      "utterance_id": "5139-61422",
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-      "real_speaker_id": "5139",
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.100292691129063,
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-      "utterance_id": "3060-163542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163542.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3060/cough/0117.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033714.json b/conversations/conv_033714.json
deleted file mode 100644
index ff122374ba1d9196298737ae50309affd6b59abd..0000000000000000000000000000000000000000
--- a/conversations/conv_033714.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.120414989050566,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "208-126600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126600.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4059-3061",
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-    {
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-      "utterance_id": "4059-3059",
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-  "background_events": [
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-  "foreground_events": [
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-      "speaker_id": "7874"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033718.json b/conversations/conv_033718.json
deleted file mode 100644
index f478465de8be6224afbc150532eda03a2b55f61f..0000000000000000000000000000000000000000
--- a/conversations/conv_033718.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 29.99008636222332,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-167347.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-167347.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.921376460481177,
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-      "utterance_id": "2309-167347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-167347.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 157103
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "1373-132103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 94601
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-      "speaker_id": "1373"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033722.json b/conversations/conv_033722.json
deleted file mode 100644
index d417b0144f302f781c2c4d2e7bece6a15c9acac8..0000000000000000000000000000000000000000
--- a/conversations/conv_033722.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-276939.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-25910.flac |",
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-      "real_speaker_id": "8605",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6121-9014.flac |",
-      "real_speaker_id": "6121",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6121-9014.flac |",
-      "real_speaker_id": "6121",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-276939.flac |",
-      "real_speaker_id": "8605",
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-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "6121-8686",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "8605"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033734.json b/conversations/conv_033734.json
deleted file mode 100644
index 1114ae5ffcc51fd2dedb3a13ef56c7bdfb714cf0..0000000000000000000000000000000000000000
--- a/conversations/conv_033734.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57646.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57639.flac |",
-      "real_speaker_id": "6009",
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-      "segment_id": "seg0003",
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-      "start_time": 16.78906499088157,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
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-    {
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-      "real_speaker_id": "1806",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "3792",
-      "position_frames": 121034
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 3.1300434360995624,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57643.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3792/cough/0079.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033738.json b/conversations/conv_033738.json
deleted file mode 100644
index aecae90237bf696903c8e825e95a71d579696f14..0000000000000000000000000000000000000000
--- a/conversations/conv_033738.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_033739.json b/conversations/conv_033739.json
deleted file mode 100644
index e735a5b9f7befd557282917b7dfdb1a7ab1dbc86..0000000000000000000000000000000000000000
--- a/conversations/conv_033739.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_033743.json b/conversations/conv_033743.json
deleted file mode 100644
index e7dc16409dd0219409674e8e12c2019e21212220..0000000000000000000000000000000000000000
--- a/conversations/conv_033743.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_033744.json b/conversations/conv_033744.json
deleted file mode 100644
index 8c80c6e48032be374f060361828ac172c9a416d1..0000000000000000000000000000000000000000
--- a/conversations/conv_033744.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_033752.json b/conversations/conv_033752.json
deleted file mode 100644
index bdd0844d4f917e5172b3d9b6c7f118536d81a8bf..0000000000000000000000000000000000000000
--- a/conversations/conv_033752.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 187005
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122451.flac |",
-      "real_speaker_id": "216",
-      "position_frames": 90981
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-  ],
-  "background_events": [
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-      "event_class": "Dishes",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5918/laugh/0089.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "5918"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5918/cough/0086.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "5918"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4595/cough/0101.wav",
-      "duration": 0.3307992179043633,
-      "start_time": 21.98606700261999,
-      "speaker_id": "4595"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033755.json b/conversations/conv_033755.json
deleted file mode 100644
index fca219cd2b2c78f0ff743ee25dae36ae0c42cf3e..0000000000000000000000000000000000000000
--- a/conversations/conv_033755.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 4.925450031883868,
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-      "overlap": false,
-      "utterance_id": "8208-256238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.666385206705767,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176683.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
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-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.39247894717337,
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-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-164927.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
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-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033759.json b/conversations/conv_033759.json
deleted file mode 100644
index a967897f305565e033cbef0a3000f87a18fac528..0000000000000000000000000000000000000000
--- a/conversations/conv_033759.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
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-      "utterance_id": "288-131218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-131218.flac |",
-      "real_speaker_id": "288",
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-      "overlap": false,
-      "utterance_id": "6553-82558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-82558.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.391112167636592,
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-      "overlap": false,
-      "utterance_id": "4800-73728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73728.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-86683.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "288-121741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-121741.flac |",
-      "real_speaker_id": "288",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_033763.json b/conversations/conv_033763.json
deleted file mode 100644
index 93227876566ebba7bf97bfff462b261a6ca52550..0000000000000000000000000000000000000000
--- a/conversations/conv_033763.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5355-10766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-10766.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-63229.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5355-35477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-35477.flac |",
-      "real_speaker_id": "5355",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "6087",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5355-35477",
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-      "real_speaker_id": "5355",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6087-50469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-50469.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6087/laugh/0008.wav",
-      "duration": 1.0,
-      "start_time": 17.483573243382956,
-      "speaker_id": "6087"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033775.json b/conversations/conv_033775.json
deleted file mode 100644
index b429b1eb40676307eb6f83c386ad88657f4142ec..0000000000000000000000000000000000000000
--- a/conversations/conv_033775.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8296-266250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-266250.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4433-16802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-279865.flac |",
-      "real_speaker_id": "8296",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_033779.json b/conversations/conv_033779.json
deleted file mode 100644
index 2a9dc995325f72077fdbfd15587c8eab18a498bd..0000000000000000000000000000000000000000
--- a/conversations/conv_033779.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8897-294721.flac |",
-      "real_speaker_id": "8897",
-      "position_frames": 0
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-      "start_time": 7.363690798660013,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58195.flac |",
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-      "real_speaker_id": "8897",
-      "position_frames": 0
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-      "utterance_id": "4246-12544",
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-      "real_speaker_id": "4246",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.02632033531275,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58195.flac |",
-      "real_speaker_id": "6106",
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-      "utterance_id": "8897-294721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8897-294721.flac |",
-      "real_speaker_id": "8897",
-      "position_frames": 107416
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "start_time": 30.76,
-      "speaker_id": "8897"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033780.json b/conversations/conv_033780.json
deleted file mode 100644
index d4e91866fec3d5c87cfe37cc87da11cb96674966..0000000000000000000000000000000000000000
--- a/conversations/conv_033780.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 8,
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-  "num_speakers": 3,
-  "overlap_rate": 0.25,
-  "segments": [
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-      "utterance_id": "37-214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-214.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-225.flac |",
-      "real_speaker_id": "37",
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-      "real_speaker_id": "3851",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 74394
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-  ],
-  "background_events": [],
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-      "event_class": "cough",
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-      "duration": 1.2,
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-      "speaker_id": "770"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
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-      "speaker_id": "37"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033781.json b/conversations/conv_033781.json
deleted file mode 100644
index 43c813134dc24a68d2ef4542e0f8950e3a6a91a3..0000000000000000000000000000000000000000
--- a/conversations/conv_033781.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "273-123248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/273-123248.flac |",
-      "real_speaker_id": "273",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-18031.flac |",
-      "real_speaker_id": "5460",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-18031.flac |",
-      "real_speaker_id": "5460",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121526.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 62998
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.004367567771368,
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-      "duration_frames": 58444,
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-      "utterance_id": "5460-18031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-18031.flac |",
-      "real_speaker_id": "5460",
-      "position_frames": 159810
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.073765061067625,
-      "end_time": 32.0,
-      "duration": 0.9262349389323745,
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-      "overlap": false,
-      "utterance_id": "77-121518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121518.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_3.wav",
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-    {
-      "event_class": "Cat",
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-      "speaker_id": "5460"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033791.json b/conversations/conv_033791.json
deleted file mode 100644
index 7d24ce8f7e8382e5fd1a1812b75f0a9ea0bc00c9..0000000000000000000000000000000000000000
--- a/conversations/conv_033791.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "36-16603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.5650754950898635,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127539.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127540.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.423535430941996,
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-      "utterance_id": "307-127535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127535.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 106939
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_033796.json b/conversations/conv_033796.json
deleted file mode 100644
index 060b7c19c720c6050554215e1451f8ab0c4d79f1..0000000000000000000000000000000000000000
--- a/conversations/conv_033796.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7713-106738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106738.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137141.flac |",
-      "real_speaker_id": "984",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-66016.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "7713-106729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106729.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6330-66016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-66016.flac |",
-      "real_speaker_id": "6330",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6330-62850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62850.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_033806.json b/conversations/conv_033806.json
deleted file mode 100644
index ce8b3a99419d0e1e091e5b1f08a0a6a8451f37d4..0000000000000000000000000000000000000000
--- a/conversations/conv_033806.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
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-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 161466
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
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-      "utterance_id": "8328-280925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_033807.json b/conversations/conv_033807.json
deleted file mode 100644
index 91d70420ab82245b8ef26f20519f9ac6803ce70e..0000000000000000000000000000000000000000
--- a/conversations/conv_033807.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99345058631335,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "duration_frames": 79848,
-      "overlap": false,
-      "utterance_id": "3588-54099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-54099.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-135033.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3588-54099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-54099.flac |",
-      "real_speaker_id": "3588",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6918",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6918-47541",
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-  "foreground_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3588/laugh/0101.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033811.json b/conversations/conv_033811.json
deleted file mode 100644
index 3a9d79cc748f61b7877a4df7f07ffb86a1c5ba5d..0000000000000000000000000000000000000000
--- a/conversations/conv_033811.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
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\ No newline at end of file
diff --git a/conversations/conv_033827.json b/conversations/conv_033827.json
deleted file mode 100644
index d744b303924150a5e8a87ed45fc103d79b91f3a6..0000000000000000000000000000000000000000
--- a/conversations/conv_033827.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1760-143006.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_033831.json b/conversations/conv_033831.json
deleted file mode 100644
index 7d53551a84f880f0d4260f9cf3a0c5736deb639c..0000000000000000000000000000000000000000
--- a/conversations/conv_033831.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_033846.json b/conversations/conv_033846.json
deleted file mode 100644
index aac6db201ad8b6f08e96b7122ac848cb2db6cacc..0000000000000000000000000000000000000000
--- a/conversations/conv_033846.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6269/laugh/0092.wav",
-      "duration": 1.16,
-      "start_time": 27.802329908553777,
-      "speaker_id": "6269"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033850.json b/conversations/conv_033850.json
deleted file mode 100644
index de8891d48b7106b4c399cc9922f3b1dae4be96e1..0000000000000000000000000000000000000000
--- a/conversations/conv_033850.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.264256973450956,
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-      "start_frame": 0,
-      "duration_frames": 84228,
-      "overlap": false,
-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.660428003973648,
-      "end_time": 9.737582399109815,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77907.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.9327716786784,
-      "end_time": 14.398172430113197,
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-      "overlap": true,
-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 84228
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.52694844968337,
-      "end_time": 18.682132682180818,
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-      "duration_frames": 50482,
-      "overlap": false,
-      "utterance_id": "7220-77905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77905.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.369654706387017,
-      "end_time": 26.164295535031624,
-      "duration": 6.7946408286446065,
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-      "duration_frames": 108714,
-      "overlap": false,
-      "utterance_id": "1098-133695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 155674
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.693895906222302,
-      "end_time": 32.0,
-      "duration": 5.306104093777698,
-      "start_frame": 427102,
-      "duration_frames": 84897,
-      "overlap": false,
-      "utterance_id": "6377-34630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34630.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1098/laugh/0034.wav",
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-      "speaker_id": "1098"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7220/laugh/0112.wav",
-      "duration": 1.1212587002808867,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7220/laugh/0051.wav",
-      "duration": 1.04,
-      "start_time": 18.979385802283232,
-      "speaker_id": "7220"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1098/laugh/0022.wav",
-      "duration": 1.14,
-      "start_time": 20.020370141694432,
-      "speaker_id": "1098"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1098/cough/0013.wav",
-      "duration": 0.8388409439738822,
-      "start_time": 26.174123069201,
-      "speaker_id": "1098"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033851.json b/conversations/conv_033851.json
deleted file mode 100644
index 0f94bac59f67e72da135465356e4ca7ace642e78..0000000000000000000000000000000000000000
--- a/conversations/conv_033851.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.327810849111607,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "587-54108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-54108.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.950233022570334,
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-      "utterance_id": "587-41611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41611.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3268-59226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3268-59226.flac |",
-      "real_speaker_id": "3268",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.528773761763096,
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-      "duration_frames": 110463,
-      "overlap": false,
-      "utterance_id": "8098-278252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8098-278252.flac |",
-      "real_speaker_id": "8098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.208474170918663,
-      "end_time": 29.835404500628137,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-41611.flac |",
-      "real_speaker_id": "587",
-      "position_frames": 60134
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.12625505889715,
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-      "utterance_id": "8098-278278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8098-278278.flac |",
-      "real_speaker_id": "8098",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8098/laugh/0087.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "8098"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033866.json b/conversations/conv_033866.json
deleted file mode 100644
index 043c574513d5f24adc999d184ee9e4149de0cff3..0000000000000000000000000000000000000000
--- a/conversations/conv_033866.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.497891008997797,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6356-271889.flac |",
-      "real_speaker_id": "6356",
-      "position_frames": 0
-    },
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-      "utterance_id": "6356-271889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6356-271889.flac |",
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-      "segment_id": "seg0004",
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-      "utterance_id": "6356-271890",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 61844
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\ No newline at end of file
diff --git a/conversations/conv_033870.json b/conversations/conv_033870.json
deleted file mode 100644
index a7350f328bf9658ac2f15c993af8646703d83eef..0000000000000000000000000000000000000000
--- a/conversations/conv_033870.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7198-80652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.236024998985175,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7198/laugh/0108.wav",
-      "duration": 1.04,
-      "start_time": 17.314901324650307,
-      "speaker_id": "7198"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033882.json b/conversations/conv_033882.json
deleted file mode 100644
index d4451cc93806efdedf17258eafe1519938399482..0000000000000000000000000000000000000000
--- a/conversations/conv_033882.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.127780676487828,
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-      "utterance_id": "2002-139469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.340607691373993,
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-      "utterance_id": "5224-35439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35439.flac |",
-      "real_speaker_id": "5224",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "4830-25904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4830-25904.flac |",
-      "real_speaker_id": "4830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.759944795109682,
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-      "duration_frames": 94911,
-      "overlap": false,
-      "utterance_id": "2002-139469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
-      "position_frames": 82044
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.686048222039318,
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-      "duration": 4.3271950003071655,
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-      "utterance_id": "4830-25904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4830-25904.flac |",
-      "real_speaker_id": "4830",
-      "position_frames": 78827
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.329947807829335,
-      "end_time": 32.0,
-      "duration": 2.6700521921706653,
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-      "utterance_id": "5224-35439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35439.flac |",
-      "real_speaker_id": "5224",
-      "position_frames": 108520
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
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-      "duration": 1.4,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 26.059705142632346,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5224/laugh/0052.wav",
-      "duration": 1.2,
-      "start_time": 30.48500151940707,
-      "speaker_id": "5224"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033885.json b/conversations/conv_033885.json
deleted file mode 100644
index 9e28c981c50283c7d8a84d532e879d2900521a2e..0000000000000000000000000000000000000000
--- a/conversations/conv_033885.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125349.flac |",
-      "real_speaker_id": "542",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125348.flac |",
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-      "speaker_id": 0,
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-      "utterance_id": "3717-21498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21498.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.254009334737663,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258262.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.097719013163942,
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-      "duration": 3.9022809868360575,
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-      "overlap": false,
-      "utterance_id": "3717-21498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-21498.flac |",
-      "real_speaker_id": "3717",
-      "position_frames": 100257
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033889.json b/conversations/conv_033889.json
deleted file mode 100644
index d2dc002a124b801ab4829026ddf421e16def2150..0000000000000000000000000000000000000000
--- a/conversations/conv_033889.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121652.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7713",
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-      "position_frames": 92192
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7463-99909",
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\ No newline at end of file
diff --git a/conversations/conv_033893.json b/conversations/conv_033893.json
deleted file mode 100644
index 9d7a7425412f4c650de02ad6d7b6ecd57787931f..0000000000000000000000000000000000000000
--- a/conversations/conv_033893.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8051-119902.flac |",
-      "real_speaker_id": "8051",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
-      "duration": 0.205578231292517,
-      "start_time": 19.319233580099674
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/331/laugh/0006.wav",
-      "duration": 0.7402890770038733,
-      "start_time": 18.608280841586613,
-      "speaker_id": "331"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.88,
-      "start_time": 27.32077642321324,
-      "speaker_id": "7051"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033894.json b/conversations/conv_033894.json
deleted file mode 100644
index dbc664ce91dd3c8a7a04a9fe1d989163b228b2a1..0000000000000000000000000000000000000000
--- a/conversations/conv_033894.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "968-122544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.7841127690563505,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-2536.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3105-166683.flac |",
-      "real_speaker_id": "3105",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
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-      "utterance_id": "1806-2536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-2536.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 78980
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3105-163726",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3105-163726.flac |",
-      "real_speaker_id": "3105",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.75332711347624,
-      "end_time": 32.0,
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-      "utterance_id": "1806-2536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-2536.flac |",
-      "real_speaker_id": "1806",
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-  "background_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033903.json b/conversations/conv_033903.json
deleted file mode 100644
index 1c4b248e332b52900f7359dad28a0122ef326553..0000000000000000000000000000000000000000
--- a/conversations/conv_033903.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7923-258989",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-258989.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 4.5679908463217425,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "7923-111564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111564.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
-    },
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-      "speaker_id": 2,
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-      "utterance_id": "8023-286253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286253.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.643060181376114,
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-      "utterance_id": "8023-286253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286253.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 71145
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.843882844201772,
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-      "utterance_id": "5012-31089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31089.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "7923"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7923/laugh/0001.wav",
-      "duration": 1.16,
-      "start_time": 14.602218418122405,
-      "speaker_id": "7923"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8023/laugh/0000.wav",
-      "duration": 0.5566819539135623,
-      "start_time": 28.09634236368924,
-      "speaker_id": "8023"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033914.json b/conversations/conv_033914.json
deleted file mode 100644
index 8220914beac7ad51d637cff67d3c27498805f841..0000000000000000000000000000000000000000
--- a/conversations/conv_033914.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6906-65918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.574361179349865,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-156757.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 0
-    },
-    {
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-      "overlap": false,
-      "utterance_id": "3994-149798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-149798.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.282332962085016,
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-      "duration_frames": 89041,
-      "overlap": true,
-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.03810519965621,
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-      "utterance_id": "3994-156757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-156757.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 92094
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.132651648085734,
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-      "overlap": false,
-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 89041
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.720321195734055,
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-      "duration": 1.279678804265945,
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-      "utterance_id": "2533-149939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
-      "duration": 0.7175510204081633,
-      "start_time": 28.160164672687934
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6906/laugh/0103.wav",
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-      "start_time": 1.9116551029457174,
-      "speaker_id": "6906"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3994/laugh/0090.wav",
-      "duration": 0.7368618290229371,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6906/laugh/0002.wav",
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6906/cough/0100.wav",
-      "duration": 1.28,
-      "start_time": 12.935536523198527,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3994/cough/0001.wav",
-      "duration": 0.78,
-      "start_time": 21.32666665137602,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2533/laugh/0020.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "2533"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033915.json b/conversations/conv_033915.json
deleted file mode 100644
index 211944d2abe5e9a3128430d19de8b77f19a950f3..0000000000000000000000000000000000000000
--- a/conversations/conv_033915.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_033919.json b/conversations/conv_033919.json
deleted file mode 100644
index 20bafd6c75d93a2b9dd5a87cbe456d2aa310b8b0..0000000000000000000000000000000000000000
--- a/conversations/conv_033919.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-224.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-122825.flac |",
-      "real_speaker_id": "246",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
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\ No newline at end of file
diff --git a/conversations/conv_033923.json b/conversations/conv_033923.json
deleted file mode 100644
index 9fd5cbbb7cbfe4499cfd2c6dbad066f2ebddc344..0000000000000000000000000000000000000000
--- a/conversations/conv_033923.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4015",
-      "position_frames": 95652
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_033928.json b/conversations/conv_033928.json
deleted file mode 100644
index 54075879680e8afccfcea14a2b67c9cd32ba5ae7..0000000000000000000000000000000000000000
--- a/conversations/conv_033928.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
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-    {
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-      "duration": 1.32,
-      "start_time": 20.076098559979485,
-      "speaker_id": "5977"
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-    {
-      "event_class": "cough",
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-      "duration": 0.4085094435111844,
-      "start_time": 19.051278494323057,
-      "speaker_id": "5977"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033935.json b/conversations/conv_033935.json
deleted file mode 100644
index 9d71e0ec5945d2a630d6c36c0b2aac70809a3a55..0000000000000000000000000000000000000000
--- a/conversations/conv_033935.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5012-80192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.951542322118467,
-      "end_time": 11.438954105808307,
-      "duration": 6.48741178368984,
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-      "utterance_id": "1367-291967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291967.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.69492571297991,
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-      "utterance_id": "1179-138367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1179-138367.flac |",
-      "real_speaker_id": "1179",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.64336023803306,
-      "end_time": 21.78147995668202,
-      "duration": 5.138119718648958,
-      "start_frame": 266293,
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-      "utterance_id": "1367-291967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291967.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 103798
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.045607604092034,
-      "end_time": 27.128408008877663,
-      "duration": 5.082800404785629,
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-      "utterance_id": "5012-80192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 69164
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.535253221957962,
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-      "duration": 4.464746778042038,
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-      "utterance_id": "1367-291931",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291931.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.967660273387553,
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1367/laugh/0005.wav",
-      "duration": 1.24,
-      "start_time": 30.50734607433403,
-      "speaker_id": "1367"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033939.json b/conversations/conv_033939.json
deleted file mode 100644
index 6d70807e3a039c157750211b0e483bc24ddcca5e..0000000000000000000000000000000000000000
--- a/conversations/conv_033939.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4379-190740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-190740.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.10998289505858,
-      "end_time": 11.008780436407761,
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-      "utterance_id": "2919-7270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7270.flac |",
-      "real_speaker_id": "2919",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.259661947248844,
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-      "utterance_id": "4379-18034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18034.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.886385936024404,
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-      "overlap": false,
-      "utterance_id": "8169-118200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.00906969485019,
-      "end_time": 32.0,
-      "duration": 4.99093030514981,
-      "start_frame": 432145,
-      "duration_frames": 79854,
-      "overlap": false,
-      "utterance_id": "2919-7269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7269.flac |",
-      "real_speaker_id": "2919",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.2278905027185183,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4379/laugh/0079.wav",
-      "duration": 0.96,
-      "start_time": 0,
-      "speaker_id": "4379"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2919/laugh/0044.wav",
-      "duration": 0.7958684657602476,
-      "start_time": 11.243939491502502,
-      "speaker_id": "2919"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8169/cough/0038.wav",
-      "duration": 0.37845730091048824,
-      "start_time": 25.330898665706222,
-      "speaker_id": "8169"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033942.json b/conversations/conv_033942.json
deleted file mode 100644
index 83402ab35ff436543a3ea819c105549a6d9095cf..0000000000000000000000000000000000000000
--- a/conversations/conv_033942.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7926-254949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254949.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.451495561997219,
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-      "utterance_id": "8803-296082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296082.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.445159747572555,
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-      "overlap": false,
-      "utterance_id": "2592-5341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-5341.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.55919168111343,
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-      "start_frame": 296947,
-      "duration_frames": 51802,
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-      "utterance_id": "2592-5341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-5341.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 93422
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.63965613614883,
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-      "duration_frames": 84896,
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-      "utterance_id": "7926-254949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254949.flac |",
-      "real_speaker_id": "7926",
-      "position_frames": 83464
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "start_frame": 455653,
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-      "overlap": false,
-      "utterance_id": "8803-296085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296085.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 30.280286338434554,
-      "speaker_id": "8803"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8803/cough/0002.wav",
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-      "speaker_id": "8803"
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-}
\ No newline at end of file
diff --git a/conversations/conv_033943.json b/conversations/conv_033943.json
deleted file mode 100644
index 9d2d46e77d49e94fda18054b640c3a101b2ac5f2..0000000000000000000000000000000000000000
--- a/conversations/conv_033943.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.728455470464265,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1961-145733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-145733.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.7526299668082945,
-      "end_time": 9.167817013922873,
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-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "128-134883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.993364649847077,
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-      "duration": 6.952010673775087,
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-      "overlap": false,
-      "utterance_id": "1961-149739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-149739.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.14440058816065,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 86685
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.676089938232167,
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-      "start_frame": 442817,
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-      "overlap": true,
-      "utterance_id": "128-121911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-121911.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033954.json b/conversations/conv_033954.json
deleted file mode 100644
index d7bc02e387e2e8cbb088e40a0dd8cc4b399657c7..0000000000000000000000000000000000000000
--- a/conversations/conv_033954.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "speaker_id": "3554"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033958.json b/conversations/conv_033958.json
deleted file mode 100644
index ec3dea03d05f8700c26ab0bac1e86b92aeda1c1a..0000000000000000000000000000000000000000
--- a/conversations/conv_033958.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46267.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 0
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-      "real_speaker_id": "568",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_033962.json b/conversations/conv_033962.json
deleted file mode 100644
index 08c4fc06fcadabcfd8529ece69050a6cd7b3480e..0000000000000000000000000000000000000000
--- a/conversations/conv_033962.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.25,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-128861.flac |",
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-      "real_speaker_id": "7618",
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-      "real_speaker_id": "572",
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-      "real_speaker_id": "7618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "segment_id": "seg0007",
-      "speaker_id": 1,
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_033969.json b/conversations/conv_033969.json
deleted file mode 100644
index 35ab14cc740c607ea28a3418f23ec6608bd83438..0000000000000000000000000000000000000000
--- a/conversations/conv_033969.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123860.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.698276421146783,
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-      "duration": 1.3017235788532169,
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-      "utterance_id": "3922-723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-723.flac |",
-      "real_speaker_id": "3922",
-      "position_frames": 180007
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-  ],
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.26,
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-}
\ No newline at end of file
diff --git a/conversations/conv_033974.json b/conversations/conv_033974.json
deleted file mode 100644
index 715862275e8c843f749635016e42a4af5235ba6b..0000000000000000000000000000000000000000
--- a/conversations/conv_033974.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8897-294721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8897-294721.flac |",
-      "real_speaker_id": "8897",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 5.22415654775691,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 14.83231604323694,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
-      "real_speaker_id": "2391",
-      "position_frames": 54482
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.333145061689134,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8897-294724.flac |",
-      "real_speaker_id": "8897",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.806227176550674,
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-      "overlap": false,
-      "utterance_id": "2391-145015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
-      "real_speaker_id": "2391",
-      "position_frames": 117237
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.075350272013793,
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-      "duration": 0.9246497279862069,
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-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
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-      "position_frames": 86513
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "duration": 0.5386447105972223,
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-      "speaker_id": "8897"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033978.json b/conversations/conv_033978.json
deleted file mode 100644
index 9b43333a184f7308b9bf48693fe4aee47a9418b9..0000000000000000000000000000000000000000
--- a/conversations/conv_033978.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2827-170438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
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-      "start_time": 20.25725993898098,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 151532
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 52357
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-  "background_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6339/laugh/0001.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2827/laugh/0072.wav",
-      "duration": 0.6902246556684135,
-      "start_time": 28.454523165067734,
-      "speaker_id": "2827"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033981.json b/conversations/conv_033981.json
deleted file mode 100644
index 32a759d19ce13a607b449b214f11ce98d6d85b3a..0000000000000000000000000000000000000000
--- a/conversations/conv_033981.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-54186.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "5756",
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "5756",
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5756/laugh/0035.wav",
-      "duration": 1.52,
-      "start_time": 18.575039278175883,
-      "speaker_id": "5756"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033986.json b/conversations/conv_033986.json
deleted file mode 100644
index 048ca04578dafd2b2c9d3977b9e52ff1584dc7dd..0000000000000000000000000000000000000000
--- a/conversations/conv_033986.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "2762-160610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2762-160610.flac |",
-      "real_speaker_id": "2762",
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-27760.flac |",
-      "real_speaker_id": "254",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-145458.flac |",
-      "real_speaker_id": "254",
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-      "real_speaker_id": "7478",
-      "position_frames": 72156
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-  "background_events": [
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7478/laugh/0012.wav",
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-      "duration": 1.12,
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-      "speaker_id": "7478"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_033990.json b/conversations/conv_033990.json
deleted file mode 100644
index a91b1a2b57b24f0649637ea985013b84b827499e..0000000000000000000000000000000000000000
--- a/conversations/conv_033990.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1383-130532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130532.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.869886739340045,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130533.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.71848715694917,
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-      "utterance_id": "3928-153301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153301.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.456626583328237,
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-      "duration_frames": 64885,
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-      "utterance_id": "3928-153300",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153300.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.63650422513883,
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-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153300.flac |",
-      "real_speaker_id": "3928",
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1383/laugh/0003.wav",
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-      "start_time": 0,
-      "speaker_id": "1383"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_033997.json b/conversations/conv_033997.json
deleted file mode 100644
index 58d6124d36ae8e77ef7f7b95d1299a2982c7994e..0000000000000000000000000000000000000000
--- a/conversations/conv_033997.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.52329837770745,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 100818
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.19948826933449,
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-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 104075
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13009.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 30.66217989059845,
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-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 161565
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_034004.json b/conversations/conv_034004.json
deleted file mode 100644
index 336b0255e48081f9e53e06e35bbef9ef855a5f8a..0000000000000000000000000000000000000000
--- a/conversations/conv_034004.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "start_frame": 0,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.236182214179255,
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-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.98715720202557,
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-      "duration_frames": 70130,
-      "overlap": true,
-      "utterance_id": "2588-11081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-11081.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.165639711620194,
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-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 64752
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "2588",
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-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "6974-258420",
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-      "real_speaker_id": "6974",
-      "position_frames": 88418
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "2588-11081",
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-      "real_speaker_id": "2588",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6974/cough/0034.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034008.json b/conversations/conv_034008.json
deleted file mode 100644
index 7df0c2d8d0d34db553f626e2f58f7a0be26dd986..0000000000000000000000000000000000000000
--- a/conversations/conv_034008.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.983176967399421,
-      "duration": 3.983176967399421,
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-      "utterance_id": "277-127368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-127368.flac |",
-      "real_speaker_id": "277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.961099826557427,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275128.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.447448079188472,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-122805.flac |",
-      "real_speaker_id": "277",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-122805.flac |",
-      "real_speaker_id": "277",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.88073526878954,
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-127368.flac |",
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-      "position_frames": 63730
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/277/cough/0058.wav",
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-      "speaker_id": "277"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034012.json b/conversations/conv_034012.json
deleted file mode 100644
index a63e699be098efff491a71f47c24665c10af68d8..0000000000000000000000000000000000000000
--- a/conversations/conv_034012.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.949694483842627,
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-      "overlap": false,
-      "utterance_id": "6892-278268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-278268.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.014685716303354,
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.784311793784703,
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-      "overlap": false,
-      "utterance_id": "8498-287359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287359.flac |",
-      "real_speaker_id": "8498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.667635854369223,
-      "end_time": 22.742765827621177,
-      "duration": 6.075129973251956,
-      "start_frame": 266682,
-      "duration_frames": 97202,
-      "overlap": false,
-      "utterance_id": "8498-287358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287358.flac |",
-      "real_speaker_id": "8498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.89513431660357,
-      "end_time": 28.291785225444094,
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 70380
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.894647463135932,
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 156726
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.4,
-      "start_time": 11.5725814619462,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8498/cough/0087.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034024.json b/conversations/conv_034024.json
deleted file mode 100644
index 934e406d4564f799c4326bfe0c5c65c2623074bc..0000000000000000000000000000000000000000
--- a/conversations/conv_034024.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77346.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
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-      "utterance_id": "6707-77351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77351.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.210933227042716,
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-      "utterance_id": "6707-77346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77346.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 81449
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.8408393938506,
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-      "utterance_id": "951-138582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-138582.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "951"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034028.json b/conversations/conv_034028.json
deleted file mode 100644
index 975b8a8405c8eb140ed289b1dfa2c75180868b55..0000000000000000000000000000000000000000
--- a/conversations/conv_034028.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5588-68192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-68192.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "5588-39648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "1334-135589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1334-135589.flac |",
-      "real_speaker_id": "1334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.30801513655609,
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-      "utterance_id": "2368-157054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157054.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.50287818032196,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-68192.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 84289
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2368-157066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157066.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.28,
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-      "speaker_id": "5588"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034032.json b/conversations/conv_034032.json
deleted file mode 100644
index 396696b82690a845b05d987e89327400705f4aa8..0000000000000000000000000000000000000000
--- a/conversations/conv_034032.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.87449942482705,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.269134663384114,
-      "duration": 5.269134663384114,
-      "start_frame": 0,
-      "duration_frames": 84306,
-      "overlap": false,
-      "utterance_id": "6072-54656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6072-54656.flac |",
-      "real_speaker_id": "6072",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.084800093556051,
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-      "utterance_id": "5720-48807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5720-48807.flac |",
-      "real_speaker_id": "5720",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034039.json b/conversations/conv_034039.json
deleted file mode 100644
index 382722c4614e12483b876932f38d5ee26768b3c4..0000000000000000000000000000000000000000
--- a/conversations/conv_034039.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "7255",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107338.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107338.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-281345.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 69381
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
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-      "position_frames": 93941
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_034044.json b/conversations/conv_034044.json
deleted file mode 100644
index 3fb510869118b1f298237725f6cf5d779ddc6e75..0000000000000000000000000000000000000000
--- a/conversations/conv_034044.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_034045.json b/conversations/conv_034045.json
deleted file mode 100644
index 10e4e7a16958724cb077dfd4be8e1843f17abe28..0000000000000000000000000000000000000000
--- a/conversations/conv_034045.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-126831.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134208.flac |",
-      "real_speaker_id": "466",
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-      "real_speaker_id": "6006",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134185.flac |",
-      "real_speaker_id": "466",
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-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "466"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034049.json b/conversations/conv_034049.json
deleted file mode 100644
index 48b23b3b87a9156b2fe160036265bb493045ab44..0000000000000000000000000000000000000000
--- a/conversations/conv_034049.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "797-127183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127183.flac |",
-      "real_speaker_id": "797",
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-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "3879",
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-    {
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-      "speaker_id": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_034053.json b/conversations/conv_034053.json
deleted file mode 100644
index 41ac88ed83f53419da2cc93351d041ed8e24e06f..0000000000000000000000000000000000000000
--- a/conversations/conv_034053.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62850.flac |",
-      "real_speaker_id": "6330",
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-      "real_speaker_id": "2606",
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\ No newline at end of file
diff --git a/conversations/conv_034054.json b/conversations/conv_034054.json
deleted file mode 100644
index d30ba9114d0565853ae6ba4d6e9fd3239fb0e663..0000000000000000000000000000000000000000
--- a/conversations/conv_034054.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_034065.json b/conversations/conv_034065.json
deleted file mode 100644
index 7883a3c02a5686eef0ffa3a1f80496291cb513fc..0000000000000000000000000000000000000000
--- a/conversations/conv_034065.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "8534",
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-    {
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-      "real_speaker_id": "5077",
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\ No newline at end of file
diff --git a/conversations/conv_034069.json b/conversations/conv_034069.json
deleted file mode 100644
index 840946119211774d5e6a366c3455f46f3babb7ff..0000000000000000000000000000000000000000
--- a/conversations/conv_034069.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4257-6397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
-      "position_frames": 64535
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.874983037580115,
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-      "utterance_id": "3185-163507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163507.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "duration": 0.84,
-      "start_time": 0,
-      "speaker_id": "3185"
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-      "event_class": "laugh",
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-      "speaker_id": "3185"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034073.json b/conversations/conv_034073.json
deleted file mode 100644
index c9619f6cce0de77a1a235fa36662991045dd3b84..0000000000000000000000000000000000000000
--- a/conversations/conv_034073.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8413-284521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8413-284521.flac |",
-      "real_speaker_id": "8413",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 5.924322456100148,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
-      "real_speaker_id": "5036",
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-      "real_speaker_id": "6904",
-      "position_frames": 0
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-      "start_time": 14.983762930252825,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
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-      "position_frames": 75309
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-      "real_speaker_id": "8413",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262305.flac |",
-      "real_speaker_id": "6904",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034078.json b/conversations/conv_034078.json
deleted file mode 100644
index c9d6ab90c01df544f91c28723cf210e19e7655a1..0000000000000000000000000000000000000000
--- a/conversations/conv_034078.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-756.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-92002.flac |",
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1266-135837.flac |",
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-      "position_frames": 0
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-  ],
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034081.json b/conversations/conv_034081.json
deleted file mode 100644
index 1c9f487ae7ad09f856abac73a14e6c91147a8abb..0000000000000000000000000000000000000000
--- a/conversations/conv_034081.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1559-139347",
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-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1559/laugh/0052.wav",
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-      "speaker_id": "1559"
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-      "event_class": "laugh",
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-      "duration": 1.28,
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-      "speaker_id": "8142"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8142/cough/0127.wav",
-      "duration": 0.4851142169325191,
-      "start_time": 19.829385116299566,
-      "speaker_id": "8142"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1559/cough/0018.wav",
-      "duration": 1.255413774153572,
-      "start_time": 29.609841377098668,
-      "speaker_id": "1559"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8142/cough/0119.wav",
-      "duration": 1.4006377509999521,
-      "start_time": 28.281068097174323,
-      "speaker_id": "8142"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034086.json b/conversations/conv_034086.json
deleted file mode 100644
index 3b72c67a1ec194db7c000f1b48d305acd008b581..0000000000000000000000000000000000000000
--- a/conversations/conv_034086.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.14866488955826,
-      "duration": 5.14866488955826,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "14-208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-208.flac |",
-      "real_speaker_id": "14",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.411228857572702,
-      "end_time": 12.209576478884633,
-      "duration": 6.798347621311931,
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-      "overlap": false,
-      "utterance_id": "2712-3536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.49959966444518,
-      "end_time": 22.54817328123068,
-      "duration": 4.048573616785501,
-      "start_frame": 295993,
-      "duration_frames": 64777,
-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 81248
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.018205130178092,
-      "end_time": 26.36350810132125,
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-      "overlap": false,
-      "utterance_id": "14-212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-212.flac |",
-      "real_speaker_id": "14",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.966789394025902,
-      "end_time": 32.0,
-      "duration": 5.033210605974098,
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-      "duration_frames": 80531,
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-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 146025
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2774/laugh/0025.wav",
-      "duration": 1.32,
-      "start_time": 14.26569018417529,
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "start_time": 21.85325099620557,
-      "speaker_id": "14"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034090.json b/conversations/conv_034090.json
deleted file mode 100644
index 88726e1c18eced832fc43e59a33a04d542b0692d..0000000000000000000000000000000000000000
--- a/conversations/conv_034090.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22436.flac |",
-      "real_speaker_id": "413",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1028-133393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133393.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.670280481743376,
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-      "utterance_id": "413-12292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-12292.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.62662903688076,
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-      "duration": 3.4917257725876403,
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-      "duration_frames": 55867,
-      "overlap": false,
-      "utterance_id": "100-121669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 79271
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1028-133395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133395.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1028/laugh/0067.wav",
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-      "speaker_id": "100"
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\ No newline at end of file
diff --git a/conversations/conv_034097.json b/conversations/conv_034097.json
deleted file mode 100644
index 897311d959fdb65c1e899e50c8d35edc3e8d6f0e..0000000000000000000000000000000000000000
--- a/conversations/conv_034097.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5622-44586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-44586.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-12539.flac |",
-      "real_speaker_id": "3003",
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "5622",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8414",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.729018302419732,
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-      "duration_frames": 90316,
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-      "utterance_id": "5622-44586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-44586.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 179788
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 31.183777225795005,
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-      "utterance_id": "8414-284675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8414-284675.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_034100.json b/conversations/conv_034100.json
deleted file mode 100644
index 280ed130735b67ac2d47a48110bb05811d845fd4..0000000000000000000000000000000000000000
--- a/conversations/conv_034100.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.43752662970564,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.2896023094129845,
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-      "utterance_id": "7258-91905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91905.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 0
-    },
-    {
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-      "overlap": true,
-      "utterance_id": "2531-156724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156724.flac |",
-      "real_speaker_id": "2531",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2598-4654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4654.flac |",
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-      "utterance_id": "7258-91905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91905.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 84633
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2531/laugh/0026.wav",
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-      "start_time": 3.4478611996221153,
-      "speaker_id": "2531"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7258/laugh/0108.wav",
-      "duration": 1.2929577658948284,
-      "start_time": 21.492079080565283,
-      "speaker_id": "7258"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7258/laugh/0065.wav",
-      "duration": 1.4986600597059847,
-      "start_time": 30.486425007796655,
-      "speaker_id": "7258"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034101.json b/conversations/conv_034101.json
deleted file mode 100644
index 154988429c4af055097e8a5a53eeb98e3891d1a3..0000000000000000000000000000000000000000
--- a/conversations/conv_034101.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.4522141322389808,
-      "duration": 3.4522141322389808,
-      "start_frame": 0,
-      "duration_frames": 55235,
-      "overlap": false,
-      "utterance_id": "5984-56840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56840.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8474953376271985,
-      "end_time": 8.70276008442502,
-      "duration": 4.855264746797821,
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-      "duration_frames": 77684,
-      "overlap": false,
-      "utterance_id": "7389-175357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-175357.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.40583418605266,
-      "end_time": 13.173047994554164,
-      "duration": 3.7672138085015043,
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-      "overlap": false,
-      "utterance_id": "5984-63095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-63095.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 13.334009223367266,
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-      "utterance_id": "7389-175357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-175357.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 77684
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.77316404512822,
-      "end_time": 24.230156385957933,
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-      "overlap": false,
-      "utterance_id": "5984-56837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56837.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.22608641955949,
-      "end_time": 28.626519434903585,
-      "duration": 3.4004330153440936,
-      "start_frame": 403617,
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-      "overlap": false,
-      "utterance_id": "7389-292563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-292563.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.3958662646704,
-      "end_time": 32.0,
-      "duration": 2.604133735329601,
-      "start_frame": 470333,
-      "duration_frames": 41666,
-      "overlap": false,
-      "utterance_id": "7389-295014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-295014.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 3.452216427259772,
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-    {
-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 23.696055693702224,
-      "speaker_id": "7389"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7389/cough/0078.wav",
-      "duration": 0.3689511734019286,
-      "start_time": 31.63104882659807,
-      "speaker_id": "7389"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034111.json b/conversations/conv_034111.json
deleted file mode 100644
index cac549aeb68167e8f0d7add167803eaaf5747a97..0000000000000000000000000000000000000000
--- a/conversations/conv_034111.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.57751472464995,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.709159655136915,
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-      "overlap": false,
-      "utterance_id": "1230-139216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139216.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.981062381328682,
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-      "duration": 4.061444721342085,
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-      "overlap": false,
-      "utterance_id": "7597-101877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101877.flac |",
-      "real_speaker_id": "7597",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.25766567306115,
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-      "start_frame": 180122,
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-      "overlap": false,
-      "utterance_id": "2541-135246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-135246.flac |",
-      "real_speaker_id": "2541",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.455174610616268,
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-      "duration": 4.26590152140835,
-      "start_frame": 263282,
-      "duration_frames": 68254,
-      "overlap": false,
-      "utterance_id": "7597-101859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101859.flac |",
-      "real_speaker_id": "7597",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.911397699499098,
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-      "duration": 3.620232165726228,
-      "start_frame": 334582,
-      "duration_frames": 57923,
-      "overlap": false,
-      "utterance_id": "1230-139225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139225.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.714395197853015,
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-      "duration_frames": 93809,
-      "overlap": false,
-      "utterance_id": "7597-101877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101877.flac |",
-      "real_speaker_id": "7597",
-      "position_frames": 64983
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_7.wav",
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-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7597/laugh/0123.wav",
-      "duration": 1.44,
-      "start_time": 27.805663013940364,
-      "speaker_id": "7597"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034116.json b/conversations/conv_034116.json
deleted file mode 100644
index 235401d79c08559deb05031be9b6379ec65d4c46..0000000000000000000000000000000000000000
--- a/conversations/conv_034116.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.247482808905661,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.738141211531435,
-      "end_time": 12.850793326904423,
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-      "duration_frames": 97802,
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-      "utterance_id": "5514-19192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19192.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.8282238669801,
-      "end_time": 19.1465774869374,
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-      "duration_frames": 101093,
-      "overlap": true,
-      "utterance_id": "8012-273154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.455887466239933,
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-      "start_frame": 327294,
-      "duration_frames": 69033,
-      "overlap": false,
-      "utterance_id": "3192-4910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4910.flac |",
-      "real_speaker_id": "3192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8012-273145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273145.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.19895724061479,
-      "end_time": 32.0,
-      "duration": 1.8010427593852114,
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-      "overlap": false,
-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 99959
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8012/cough/0031.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3192/cough/0072.wav",
-      "duration": 0.723513107176859,
-      "start_time": 19.684248124893237,
-      "speaker_id": "3192"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8012/laugh/0081.wav",
-      "duration": 0.8833522464899559,
-      "start_time": 29.87265240895595,
-      "speaker_id": "8012"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5514/laugh/0026.wav",
-      "duration": 1.28,
-      "start_time": 28.816598779951942,
-      "speaker_id": "5514"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034120.json b/conversations/conv_034120.json
deleted file mode 100644
index a006f01929da2d818b173da1244e1fd51f1b30d0..0000000000000000000000000000000000000000
--- a/conversations/conv_034120.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.79970206352962,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.595980113465162,
-      "duration": 6.595980113465162,
-      "start_frame": 0,
-      "duration_frames": 105535,
-      "overlap": false,
-      "utterance_id": "3118-5911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5911.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.031048095068993,
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-      "overlap": true,
-      "utterance_id": "1283-129808",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-129808.flac |",
-      "real_speaker_id": "1283",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-136983.flac |",
-      "real_speaker_id": "1283",
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034136.json b/conversations/conv_034136.json
deleted file mode 100644
index 2636929d7e8ef564b07beaac19a8626685622c0f..0000000000000000000000000000000000000000
--- a/conversations/conv_034136.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-19207.flac |",
-      "real_speaker_id": "4773",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "real_speaker_id": "3138",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-25910.flac |",
-      "real_speaker_id": "4773",
-      "position_frames": 63268
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_034141.json b/conversations/conv_034141.json
deleted file mode 100644
index 1670d4789f6cbdda25ed2aebe35da173e8b5b2b3..0000000000000000000000000000000000000000
--- a/conversations/conv_034141.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034156.json b/conversations/conv_034156.json
deleted file mode 100644
index 15604c8fc67d0a746a2fb4b33ef2a70a826bcdfe..0000000000000000000000000000000000000000
--- a/conversations/conv_034156.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "speaker_id": "8008"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034157.json b/conversations/conv_034157.json
deleted file mode 100644
index 079ab6f60f0f3612649ff608484b1784dfaa9573..0000000000000000000000000000000000000000
--- a/conversations/conv_034157.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4423-16012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-16012.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 0
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-      "utterance_id": "6614-67845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67845.flac |",
-      "real_speaker_id": "6614",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-29083.flac |",
-      "real_speaker_id": "4423",
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67847.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.032116909089197,
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-      "utterance_id": "6415-111615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034161.json b/conversations/conv_034161.json
deleted file mode 100644
index 3a20a618ca1ddcde098a51a4a11520276845485a..0000000000000000000000000000000000000000
--- a/conversations/conv_034161.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-107483.flac |",
-      "real_speaker_id": "7739",
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-      "real_speaker_id": "1401",
-      "position_frames": 0
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-    {
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-      "start_time": 30.25317587101653,
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-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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\ No newline at end of file
diff --git a/conversations/conv_034177.json b/conversations/conv_034177.json
deleted file mode 100644
index 45d960dd00447a6c46587f2d9c20bdab8fc69fdb..0000000000000000000000000000000000000000
--- a/conversations/conv_034177.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "8238-274553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-274553.flac |",
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-      "real_speaker_id": "7434",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_034182.json b/conversations/conv_034182.json
deleted file mode 100644
index 906104b65b0c9fcd85e59e8e0012dcfb078c563c..0000000000000000000000000000000000000000
--- a/conversations/conv_034182.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7240-108066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-108066.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7240-92200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92200.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-      "speaker_id": "7240"
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\ No newline at end of file
diff --git a/conversations/conv_034185.json b/conversations/conv_034185.json
deleted file mode 100644
index 0a5c06188d130b9098a9706096932ffd39358a1a..0000000000000000000000000000000000000000
--- a/conversations/conv_034185.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.597743381288595,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4192-5332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4192-5332.flac |",
-      "real_speaker_id": "4192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.0002942374376005,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132718.flac |",
-      "real_speaker_id": "339",
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-      "real_speaker_id": "1779",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 16.845359967042125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132718.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 80924
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132718.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 156351
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4192-5332.flac |",
-      "real_speaker_id": "4192",
-      "position_frames": 93798
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1779/laugh/0021.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "339"
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\ No newline at end of file
diff --git a/conversations/conv_034193.json b/conversations/conv_034193.json
deleted file mode 100644
index 437ad0a145555a29bb1c6df339befacb3a55a38c..0000000000000000000000000000000000000000
--- a/conversations/conv_034193.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
-      "real_speaker_id": "2925",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
-      "real_speaker_id": "2925",
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-      "real_speaker_id": "2925",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-16007.flac |",
-      "real_speaker_id": "4313",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_034194.json b/conversations/conv_034194.json
deleted file mode 100644
index 4bbb7dc26264520e019b79e819c731ae6f199066..0000000000000000000000000000000000000000
--- a/conversations/conv_034194.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "2230-148550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-148550.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-148550.flac |",
-      "real_speaker_id": "2230",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7511-102420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102420.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.277271099529983,
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_034198.json b/conversations/conv_034198.json
deleted file mode 100644
index abef82ff8d9d1b2c1f73f7dba30757feaf017246..0000000000000000000000000000000000000000
--- a/conversations/conv_034198.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "44-201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
-      "real_speaker_id": "44",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/44/laugh/0007.wav",
-      "duration": 0.84,
-      "start_time": 30.207322534565137,
-      "speaker_id": "44"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/44/cough/0080.wav",
-      "duration": 0.9986908636226752,
-      "start_time": 31.001309136377326,
-      "speaker_id": "44"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034202.json b/conversations/conv_034202.json
deleted file mode 100644
index dbcaafdfc7f11d2cbb257b8fa63e4aee03901c59..0000000000000000000000000000000000000000
--- a/conversations/conv_034202.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.415806097331583,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8370159528644123,
-      "duration": 3.8370159528644123,
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-      "overlap": false,
-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.236218986446587,
-      "end_time": 9.737550486842963,
-      "duration": 5.501331500396377,
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-      "utterance_id": "3698-41990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-41990.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.382960629163426,
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-      "duration_frames": 71913,
-      "overlap": true,
-      "utterance_id": "3698-29401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-29401.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.89151566641993,
-      "end_time": 20.833548885762237,
-      "duration": 4.942033219342307,
-      "start_frame": 254264,
-      "duration_frames": 79072,
-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.39418062185772,
-      "end_time": 25.770114919763515,
-      "duration": 4.375934297905792,
-      "start_frame": 342306,
-      "duration_frames": 70014,
-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 79072
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.313199563827432,
-      "end_time": 31.415806097331583,
-      "duration": 5.102606533504152,
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-      "utterance_id": "3698-29401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-29401.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 71913
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-    {
-      "event_class": "laugh",
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-      "start_time": 8.802422697799834,
-      "speaker_id": "3698"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/laugh/0080.wav",
-      "duration": 0.8194429962638763,
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-      "speaker_id": "2741"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/laugh/0027.wav",
-      "duration": 0.6410318041019587,
-      "start_time": 20.488031485252122,
-      "speaker_id": "2741"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034205.json b/conversations/conv_034205.json
deleted file mode 100644
index 87d16907696e5b2c85f58122042badf011095fa4..0000000000000000000000000000000000000000
--- a/conversations/conv_034205.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1012-133424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1012-133424.flac |",
-      "real_speaker_id": "1012",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.044101305202378,
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-      "overlap": true,
-      "utterance_id": "1012-133424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1012-133424.flac |",
-      "real_speaker_id": "1012",
-      "position_frames": 87796
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.974354358022605,
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-      "duration": 4.164239200895021,
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-      "duration_frames": 66627,
-      "overlap": false,
-      "utterance_id": "2230-124587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-124587.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.093069185731267,
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-      "overlap": false,
-      "utterance_id": "2230-148550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-148550.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.039693027673298,
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-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 57403
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-    {
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-      "start_time": 27.34874324077852,
-      "speaker_id": "1825"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034209.json b/conversations/conv_034209.json
deleted file mode 100644
index 50d6830ea74436473e35f64782283bc028b4d8b6..0000000000000000000000000000000000000000
--- a/conversations/conv_034209.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "8414-284675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8414-284675.flac |",
-      "real_speaker_id": "8414",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "6686-216563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6686-216563.flac |",
-      "real_speaker_id": "6686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.398008123925276,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8414-284675.flac |",
-      "real_speaker_id": "8414",
-      "position_frames": 64974
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.71495806589645,
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-      "real_speaker_id": "6686",
-      "position_frames": 95159
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.204240708685887,
-      "end_time": 32.0,
-      "duration": 2.7957592913141127,
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-      "duration_frames": 44732,
-      "overlap": false,
-      "utterance_id": "8414-284675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8414-284675.flac |",
-      "real_speaker_id": "8414",
-      "position_frames": 159477
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8414/cough/0006.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034213.json b/conversations/conv_034213.json
deleted file mode 100644
index 889dd47cee8db1eb76e7ff1927e30991c6d19c70..0000000000000000000000000000000000000000
--- a/conversations/conv_034213.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.415395874230533,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7649-96667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-96667.flac |",
-      "real_speaker_id": "7649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.497222592443809,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7649-99140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7649-99140.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7649/laugh/0086.wav",
-      "duration": 1.4264187028737412,
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-      "speaker_id": "7649"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1535/laugh/0074.wav",
-      "duration": 1.02,
-      "start_time": 9.866276999926455,
-      "speaker_id": "1535"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1535/laugh/0038.wav",
-      "duration": 1.28,
-      "start_time": 21.368693249234997,
-      "speaker_id": "1535"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7649/laugh/0069.wav",
-      "duration": 0.5331533467498906,
-      "start_time": 20.854391400098162,
-      "speaker_id": "7649"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5199/laugh/0020.wav",
-      "duration": 1.8103493020629933,
-      "start_time": 27.01333153669876,
-      "speaker_id": "5199"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034214.json b/conversations/conv_034214.json
deleted file mode 100644
index 8611a36b39b7ec1e27fbb74cef0e017fdb4565b0..0000000000000000000000000000000000000000
--- a/conversations/conv_034214.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.7337673070658415,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5139-30105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30105.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.343698365876989,
-      "end_time": 10.584500388263027,
-      "duration": 5.240802022386037,
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-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.369127228610497,
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-      "duration": 6.983691898749694,
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-      "utterance_id": "5139-61422",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-61422.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.693537429935795,
-      "end_time": 25.193284011578662,
-      "duration": 5.499746581642868,
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-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 83852
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.673325690166152,
-      "end_time": 30.48703198187653,
-      "duration": 4.813706291710379,
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-      "duration_frames": 77019,
-      "overlap": false,
-      "utterance_id": "5139-30105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30105.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 91740
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.027680156418118,
-      "end_time": 32.0,
-      "duration": 0.9723198435818823,
-      "start_frame": 496442,
-      "duration_frames": 15557,
-      "overlap": false,
-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 171847
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5139/laugh/0072.wav",
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-      "start_time": 0,
-      "speaker_id": "5139"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3168/laugh/0036.wav",
-      "duration": 0.5078800604181102,
-      "start_time": 10.67923950331536,
-      "speaker_id": "3168"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3168/laugh/0000.wav",
-      "duration": 1.7,
-      "start_time": 19.710208485244824,
-      "speaker_id": "3168"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5139/cough/0109.wav",
-      "duration": 1.135357987726668,
-      "start_time": 24.34648372965815,
-      "speaker_id": "5139"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3168/cough/0066.wav",
-      "duration": 0.3891743305692609,
-      "start_time": 30.632279315757007,
-      "speaker_id": "3168"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034225.json b/conversations/conv_034225.json
deleted file mode 100644
index 17bb0bd05f858560e18ea5007048abc9bcfcc6d2..0000000000000000000000000000000000000000
--- a/conversations/conv_034225.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "150-132655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-132655.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.668880595096756,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-23193.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
-      "real_speaker_id": "6236",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.996178415400408,
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-      "duration": 4.5178186152134465,
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-      "duration_frames": 72285,
-      "overlap": false,
-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
-      "real_speaker_id": "6236",
-      "position_frames": 52426
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.226673611210515,
-      "end_time": 24.91958590101909,
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-      "overlap": false,
-      "utterance_id": "150-126112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126112.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.430893907912697,
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-      "overlap": false,
-      "utterance_id": "3906-191426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-191426.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.379229004806803,
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-      "duration_frames": 41932,
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-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
-      "real_speaker_id": "6236",
-      "position_frames": 124711
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  ],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3906/laugh/0125.wav",
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-      "speaker_id": "3906"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6236/laugh/0092.wav",
-      "duration": 1.06,
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-      "speaker_id": "6236"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/150/laugh/0083.wav",
-      "duration": 0.6044193496755433,
-      "start_time": 24.128181049997412,
-      "speaker_id": "150"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3906/cough/0130.wav",
-      "duration": 0.6416337469264317,
-      "start_time": 24.618409077257862,
-      "speaker_id": "3906"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6236/cough/0122.wav",
-      "duration": 1.1359899945561827,
-      "start_time": 30.03874164087714,
-      "speaker_id": "6236"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034228.json b/conversations/conv_034228.json
deleted file mode 100644
index 8096b89e31f0ca0f9f06eddb33d53b73fdac7184..0000000000000000000000000000000000000000
--- a/conversations/conv_034228.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.134125349210847,
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-      "utterance_id": "1974-139741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139741.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.563726186599434,
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-      "overlap": true,
-      "utterance_id": "6531-61334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.04066983453368,
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-      "utterance_id": "7525-92915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-92915.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139741.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 52500
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.910263434035166,
-      "end_time": 32.0,
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-      "duration_frames": 33435,
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-      "utterance_id": "7525-92915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-92915.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 60149
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "7525"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034229.json b/conversations/conv_034229.json
deleted file mode 100644
index 0c9f69b43b2f11ec000b6cdc7e9aa8f6571e5d9f..0000000000000000000000000000000000000000
--- a/conversations/conv_034229.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.554196075319062,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "duration": 0.5734182720627834,
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-}
\ No newline at end of file
diff --git a/conversations/conv_034233.json b/conversations/conv_034233.json
deleted file mode 100644
index fe6778749c3ad6c801339bda2190cd8fd5d0bf11..0000000000000000000000000000000000000000
--- a/conversations/conv_034233.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.690341968874463,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8392-285237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 5.30048364819938,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-262269.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
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-      "speaker_id": 1,
-      "start_time": 27.281911569689345,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-112761.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 65491
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_034243.json b/conversations/conv_034243.json
deleted file mode 100644
index 270baa76564d816f822cada3a702dda876c8db01..0000000000000000000000000000000000000000
--- a/conversations/conv_034243.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176663.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 83554
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176663.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 63946
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3843-176666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.240562795665962,
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-      "utterance_id": "8808-283205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-283205.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/249/laugh/0028.wav",
-      "duration": 1.16,
-      "start_time": 9.061134491435256,
-      "speaker_id": "249"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034244.json b/conversations/conv_034244.json
deleted file mode 100644
index 999b21bfbcfb7263d9e04d2200f4d41125aa8ede..0000000000000000000000000000000000000000
--- a/conversations/conv_034244.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.694592264022479,
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-      "utterance_id": "4018-107312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107312.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 97519
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8590-258290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258290.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.938726105448247,
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-      "overlap": false,
-      "utterance_id": "4018-107312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107312.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 81737
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.060728369396706,
-      "end_time": 32.0,
-      "duration": 2.9392716306032938,
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-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 181271
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-    {
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-      "start_time": 26.592099909372894,
-      "speaker_id": "4018"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034248.json b/conversations/conv_034248.json
deleted file mode 100644
index d85a452c49c3d03870f0ba9c32a69d5873da0f39..0000000000000000000000000000000000000000
--- a/conversations/conv_034248.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.004449586725748,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5468-43611.flac |",
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-      "real_speaker_id": "3641",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5468/laugh/0148.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034252.json b/conversations/conv_034252.json
deleted file mode 100644
index 8e90d305f67f508c2a596c5e59f6065f8fff3d50..0000000000000000000000000000000000000000
--- a/conversations/conv_034252.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "1772-135621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.75716484709477,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.571786726816477,
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-      "utterance_id": "1772-135621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
-      "position_frames": 166252
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 70262
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "event_class": "cough",
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-      "duration": 1.08,
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-      "speaker_id": "4161"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_034253.json b/conversations/conv_034253.json
deleted file mode 100644
index 430cf7ad2466f9b0c3be0b7da6e98fe74ecc2642..0000000000000000000000000000000000000000
--- a/conversations/conv_034253.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.545091876413633,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
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-      "utterance_id": "3977-185466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185466.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 50980
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.93285111855578,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2143-145731.flac |",
-      "real_speaker_id": "2143",
-      "position_frames": 87877
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 148145
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "Cat",
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-    },
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/421/laugh/0059.wav",
-      "duration": 0.7319567562359591,
-      "start_time": 29.112308671871947,
-      "speaker_id": "421"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034255.json b/conversations/conv_034255.json
deleted file mode 100644
index a277f4bca4718b55a38104837fabe2a6b9b3f714..0000000000000000000000000000000000000000
--- a/conversations/conv_034255.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.278767942072214,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.563912678279799,
-      "duration": 6.563912678279799,
-      "start_frame": 0,
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-      "utterance_id": "690-133452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-133452.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.848274182251074,
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-      "duration_frames": 102145,
-      "overlap": false,
-      "utterance_id": "8772-270777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "duration": 3.6905688602712092,
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-      "overlap": false,
-      "utterance_id": "690-133452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-133452.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 105022
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8772-295710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-295710.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.078339205517153,
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-      "utterance_id": "690-133452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-133452.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 164071
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/690/cough/0033.wav",
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-      "start_time": 28.436448775731115,
-      "speaker_id": "690"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034264.json b/conversations/conv_034264.json
deleted file mode 100644
index 63c50650c3498e14f2937be016c13b081b70aeaa..0000000000000000000000000000000000000000
--- a/conversations/conv_034264.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.44591702451711,
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-      "real_speaker_id": "5487",
-      "position_frames": 0
-    },
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-      "overlap": false,
-      "utterance_id": "5606-54666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54666.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "6763-74797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74797.flac |",
-      "real_speaker_id": "6763",
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-      "segment_id": "seg0003",
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-      "utterance_id": "5606-54667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.529615209327066,
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-      "utterance_id": "5487-41940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-41940.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 55134
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-      "speaker_id": 1,
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-      "utterance_id": "6763-74798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74798.flac |",
-      "real_speaker_id": "6763",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.921672138884034,
-      "end_time": 32.0,
-      "duration": 2.078327861115966,
-      "start_frame": 478746,
-      "duration_frames": 33253,
-      "overlap": false,
-      "utterance_id": "6763-74798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74798.flac |",
-      "real_speaker_id": "6763",
-      "position_frames": 58177
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 12.794309165833717,
-      "start_time": 3.271926422426441
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
-      "duration": 1.0366624794655803,
-      "start_time": 16.197269387498178
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5487/laugh/0074.wav",
-      "duration": 1.12,
-      "start_time": 3.532911356917326,
-      "speaker_id": "5487"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5606/laugh/0082.wav",
-      "duration": 1.0807662299050895,
-      "start_time": 6.621014538570932,
-      "speaker_id": "5606"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6763/laugh/0051.wav",
-      "duration": 1.4,
-      "start_time": 8.425971919587257,
-      "speaker_id": "6763"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6763/cough/0028.wav",
-      "duration": 1.04,
-      "start_time": 15.282129539728054,
-      "speaker_id": "6763"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034268.json b/conversations/conv_034268.json
deleted file mode 100644
index 0be49fa46b029b56dacc500a048567c34dab0f67..0000000000000000000000000000000000000000
--- a/conversations/conv_034268.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.3793519971371815,
-      "duration": 4.3793519971371815,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1336-138113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138113.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.6596018427248085,
-      "end_time": 9.905592388579368,
-      "duration": 5.24599054585456,
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-      "duration_frames": 83935,
-      "overlap": false,
-      "utterance_id": "8195-117382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.367869723544478,
-      "end_time": 14.95692277693914,
-      "duration": 4.589053053394661,
-      "start_frame": 165885,
-      "duration_frames": 73424,
-      "overlap": true,
-      "utterance_id": "1336-138115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138115.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.680210677221094,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138115.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 73424
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8195-117382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 83935
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.977841111998956,
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-      "duration": 5.022158888001044,
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-      "overlap": false,
-      "utterance_id": "8195-117382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8195-117382.flac |",
-      "real_speaker_id": "8195",
-      "position_frames": 149071
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "start_time": 3.5223153137222716
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_1.wav",
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-      "event_class": "Dog",
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-      "duration": 0.9632426303854875,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 1.2,
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-      "speaker_id": "1336"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8195/laugh/0092.wav",
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-      "speaker_id": "8195"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8195/cough/0014.wav",
-      "duration": 0.8673585232397993,
-      "start_time": 31.1326414767602,
-      "speaker_id": "8195"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034272.json b/conversations/conv_034272.json
deleted file mode 100644
index 781321a9a7b304138e65d240e7467a379cf079af..0000000000000000000000000000000000000000
--- a/conversations/conv_034272.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.203128577367504,
-  "num_speakers": 3,
-  "overlap_rate": 0.5714285714285714,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3023211450312675,
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-      "start_frame": 0,
-      "duration_frames": 52837,
-      "overlap": false,
-      "utterance_id": "1849-144965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-144965.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.1991304793562367,
-      "end_time": 6.766002479074697,
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-      "overlap": true,
-      "utterance_id": "1639-132848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 7.004615997327711,
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-      "duration": 5.4527339055908,
-      "start_frame": 112073,
-      "duration_frames": 87243,
-      "overlap": true,
-      "utterance_id": "1849-144965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-144965.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 52837
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.483909168733382,
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-      "duration": 3.395433556976247,
-      "start_frame": 215742,
-      "duration_frames": 54326,
-      "overlap": false,
-      "utterance_id": "5514-19192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19192.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 16.57108723432002,
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-      "duration_frames": 74458,
-      "overlap": true,
-      "utterance_id": "1639-132848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 57069
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.213273285777355,
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-      "duration": 6.794255556455658,
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-      "duration_frames": 108708,
-      "overlap": false,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.663578555952622,
-      "end_time": 31.203128577367504,
-      "duration": 2.5395500214148825,
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-      "duration_frames": 40632,
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-      "utterance_id": "5514-19193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1639/cough/0061.wav",
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-      "start_time": 6.811820110740083,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5514/cough/0009.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1639/laugh/0037.wav",
-      "duration": 0.9785973769204575,
-      "start_time": 15.422183799358505,
-      "speaker_id": "1639"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034287.json b/conversations/conv_034287.json
deleted file mode 100644
index d49dcaadee87945880524207db80bb1c53539168..0000000000000000000000000000000000000000
--- a/conversations/conv_034287.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.981853437276385,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.374335507036037,
-      "duration": 6.374335507036037,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1337-10674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-10674.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.625265982204173,
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-      "utterance_id": "1265-135635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.145895019833253,
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-      "utterance_id": "1601-136862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136862.flac |",
-      "real_speaker_id": "1601",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1337-156963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-156963.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.89753413661043,
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-    {
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-      "overlap": false,
-      "utterance_id": "1337-156963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-156963.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 91884
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "speaker_id": "1265"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1337/laugh/0105.wav",
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-      "event_class": "laugh",
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-      "duration": 0.718005891103099,
-      "start_time": 24.36173148693161,
-      "speaker_id": "1265"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034290.json b/conversations/conv_034290.json
deleted file mode 100644
index aa7750983a98966abe58b19df8d1d2d3333582fa..0000000000000000000000000000000000000000
--- a/conversations/conv_034290.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1235-135884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135884.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.358980217194907,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-41217.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1235-135883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135883.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.918968047284118,
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-      "start_frame": 270703,
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-      "utterance_id": "1235-135883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135883.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 104749
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.91880826930596,
-      "end_time": 27.347219939470726,
-      "duration": 4.428411670164769,
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-      "overlap": false,
-      "utterance_id": "7342-254918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-254918.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.80998772657357,
-      "end_time": 32.0,
-      "duration": 4.190012273426429,
-      "start_frame": 444959,
-      "duration_frames": 67040,
-      "overlap": false,
-      "utterance_id": "1235-135884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135884.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 82735
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 16.667782199729274,
-      "start_time": 11.203281354959117
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-  "foreground_events": [
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-      "start_time": 9.270922874062753,
-      "speaker_id": "5719"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034291.json b/conversations/conv_034291.json
deleted file mode 100644
index 9691494a68702176612064494b4d6ab293344b8e..0000000000000000000000000000000000000000
--- a/conversations/conv_034291.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.64134926071101,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1027-125140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
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-    {
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-      "start_time": 5.788172329193295,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
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-      "overlap": false,
-      "utterance_id": "5115-26950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26950.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.200433444847782,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
-      "real_speaker_id": "6258",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 90019
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_5.wav",
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-      "speaker_id": "1027"
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-      "duration": 1.14,
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-      "event_class": "cough",
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-      "speaker_id": "6258"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6258/cough/0063.wav",
-      "duration": 0.9445331259002645,
-      "start_time": 16.246736688791177,
-      "speaker_id": "6258"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034301.json b/conversations/conv_034301.json
deleted file mode 100644
index 04ac6d27c57c0bebd34098a278720214af14ad94..0000000000000000000000000000000000000000
--- a/conversations/conv_034301.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.050855232235593,
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-      "utterance_id": "3990-13164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-13164.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.789801489715616,
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-      "duration_frames": 84958,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.646275943294144,
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-      "overlap": false,
-      "utterance_id": "3990-31915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31915.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.609688823178445,
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-      "duration": 4.517056764152312,
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-      "utterance_id": "5230-4879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4879.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.558763838314228,
-      "end_time": 26.490690785286482,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31915.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 107722
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.3709582143181294,
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-      "overlap": false,
-      "utterance_id": "5230-4863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4863.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3990/cough/0125.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/807/cough/0096.wav",
-      "duration": 1.3092073160655622,
-      "start_time": 10.28332237677555,
-      "speaker_id": "807"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3990/laugh/0118.wav",
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-      "start_time": 17.572486684341904,
-      "speaker_id": "3990"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3990/cough/0009.wav",
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-      "speaker_id": "3990"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5230/laugh/0083.wav",
-      "duration": 1.45602252462982,
-      "start_time": 22.158417595050572,
-      "speaker_id": "5230"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034306.json b/conversations/conv_034306.json
deleted file mode 100644
index c1d83804e2c28ce7739d77c7093d8e093642c4ea..0000000000000000000000000000000000000000
--- a/conversations/conv_034306.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.369752594720136,
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-      "duration_frames": 69916,
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-      "utterance_id": "684-131458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-131458.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.355437422450997,
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-      "duration": 4.644562577549003,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-137978.flac |",
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-      "position_frames": 85142
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034310.json b/conversations/conv_034310.json
deleted file mode 100644
index bbd00296e412cfa9b90559ff85acfcb2786ba1e5..0000000000000000000000000000000000000000
--- a/conversations/conv_034310.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.971394058507617,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.039484608153662,
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-      "overlap": false,
-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 0
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-      "start_time": 4.424605795532575,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258959.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258960.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 156249
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_034316.json b/conversations/conv_034316.json
deleted file mode 100644
index 10404f690cd0eecf4e4537475c061c326353e9b5..0000000000000000000000000000000000000000
--- a/conversations/conv_034316.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "4363",
-      "position_frames": 0
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-      "position_frames": 57416
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_034317.json b/conversations/conv_034317.json
deleted file mode 100644
index cfeffed15526c8228e40d93e6de10d6ac4ff6a23..0000000000000000000000000000000000000000
--- a/conversations/conv_034317.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-      "speaker_id": "2056"
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-      "duration": 1.5171406518356407,
-      "start_time": 28.855929433483826,
-      "speaker_id": "1336"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034321.json b/conversations/conv_034321.json
deleted file mode 100644
index 866cb63b9c100c01ce9e0dbd023f4c0692b8b115..0000000000000000000000000000000000000000
--- a/conversations/conv_034321.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.758839477547094,
-      "duration": 4.758839477547094,
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-      "overlap": false,
-      "utterance_id": "2553-163728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163728.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.493086817167149,
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-      "utterance_id": "2748-160985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 16.80250463270565,
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-      "utterance_id": "2553-163692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163692.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5700-44605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-44605.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.06053893852264,
-      "end_time": 32.0,
-      "duration": 3.9394610614773597,
-      "start_frame": 448968,
-      "duration_frames": 63031,
-      "overlap": false,
-      "utterance_id": "2748-160985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 103957
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 13.30635583536795,
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2553/laugh/0054.wav",
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-      "event_class": "laugh",
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-      "start_time": 26.68390669685348,
-      "speaker_id": "2748"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034337.json b/conversations/conv_034337.json
deleted file mode 100644
index e9be033e6dd741abc98abec4ad751682dace79f6..0000000000000000000000000000000000000000
--- a/conversations/conv_034337.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3885-12149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-12149.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.0059602408299515,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-185436.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
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-      "start_time": 11.264114799296902,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-181961.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "3885-183973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-183973.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "2162-181961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-181961.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 70793
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.83007789076444,
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-      "duration": 3.1699221092355607,
-      "start_frame": 461281,
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-      "overlap": false,
-      "utterance_id": "3885-7167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-7167.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_5.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
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-    {
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-      "duration": 1.36,
-      "start_time": 12.623682884436718,
-      "speaker_id": "2162"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3885/cough/0131.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2162/laugh/0007.wav",
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-      "start_time": 24.698513978010688,
-      "speaker_id": "2162"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034340.json b/conversations/conv_034340.json
deleted file mode 100644
index 710c80093c2d54d4ba58be220257ebfc95a465a2..0000000000000000000000000000000000000000
--- a/conversations/conv_034340.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2240-148521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148521.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
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-    {
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-      "utterance_id": "8312-279791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279791.flac |",
-      "real_speaker_id": "8312",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148529.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.63868344228327,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30096.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.393189091009123,
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-      "real_speaker_id": "2240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 3.7867043736360806,
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-      "utterance_id": "2240-148521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148521.flac |",
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-      "position_frames": 73298
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2240/laugh/0093.wav",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.28,
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-      "speaker_id": "2240"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034347.json b/conversations/conv_034347.json
deleted file mode 100644
index 14688d79bda7bd528efc2aa9e9e75e9a4a4a95b9..0000000000000000000000000000000000000000
--- a/conversations/conv_034347.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57646.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.13417129946559,
-      "end_time": 26.532196313113612,
-      "duration": 5.398025013648024,
-      "start_frame": 338146,
-      "duration_frames": 86368,
-      "overlap": true,
-      "utterance_id": "6670-296083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-296083.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 56077
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.107440630482206,
-      "end_time": 32.0,
-      "duration": 3.8925593695177945,
-      "start_frame": 449719,
-      "duration_frames": 62280,
-      "overlap": false,
-      "utterance_id": "1696-142314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1696-142314.flac |",
-      "real_speaker_id": "1696",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 16.389986144344082,
-      "start_time": 6.365288847406938
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
-      "duration": 0.6760544217687074,
-      "start_time": 1.575868202437711
-    },
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.1895909408663723,
-      "start_time": 12.2090741406824
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6009/laugh/0061.wav",
-      "duration": 1.0904407627140875,
-      "start_time": 7.943753790009024,
-      "speaker_id": "6009"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6009/cough/0028.wav",
-      "duration": 1.2114013673343018,
-      "start_time": 15.969994237958154,
-      "speaker_id": "6009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034351.json b/conversations/conv_034351.json
deleted file mode 100644
index 043e4ded4aaf8a3476c1ada96e95ca2ec15a3df1..0000000000000000000000000000000000000000
--- a/conversations/conv_034351.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.873956227944845,
-      "duration": 4.873956227944845,
-      "start_frame": 0,
-      "duration_frames": 77983,
-      "overlap": false,
-      "utterance_id": "3885-183973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-183973.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.059426290775819,
-      "end_time": 11.650568357753631,
-      "duration": 6.591142066977811,
-      "start_frame": 80950,
-      "duration_frames": 105458,
-      "overlap": true,
-      "utterance_id": "3885-183973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-183973.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 77983
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.570960920569371,
-      "end_time": 18.83905275557383,
-      "duration": 6.268091835004461,
-      "start_frame": 201135,
-      "duration_frames": 100289,
-      "overlap": false,
-      "utterance_id": "403-126855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.206966872106463,
-      "end_time": 23.920729028988283,
-      "duration": 4.713762156881819,
-      "start_frame": 307311,
-      "duration_frames": 75420,
-      "overlap": false,
-      "utterance_id": "3885-12149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-12149.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.924183728006497,
-      "end_time": 29.807293400457507,
-      "duration": 4.88310967245101,
-      "start_frame": 398786,
-      "duration_frames": 78129,
-      "overlap": false,
-      "utterance_id": "403-128339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-128339.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.638625116192248,
-      "end_time": 32.0,
-      "duration": 1.361374883807752,
-      "start_frame": 490218,
-      "duration_frames": 21781,
-      "overlap": false,
-      "utterance_id": "3885-1193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-1193.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
-      "duration": 12.929429691645089,
-      "start_time": 14.088385913939218
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
-      "duration": 4.926555386483907,
-      "start_time": 12.968194944124898
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_5.wav",
-      "duration": 0.2931972789115646,
-      "start_time": 5.515318782607295
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3885/laugh/0166.wav",
-      "duration": 1.2317154550245257,
-      "start_time": 4.894966875375112,
-      "speaker_id": "3885"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/403/laugh/0075.wav",
-      "duration": 1.3880289488868283,
-      "start_time": 12.95788517340635,
-      "speaker_id": "403"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3885/cough/0131.wav",
-      "duration": 0.9466192234613464,
-      "start_time": 18.174968637345465,
-      "speaker_id": "3885"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3885/laugh/0114.wav",
-      "duration": 1.4603092642553075,
-      "start_time": 30.539690735744692,
-      "speaker_id": "3885"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034356.json b/conversations/conv_034356.json
deleted file mode 100644
index 5c6187ef4573d987f2fcdba6660f7a39e8f5e2cb..0000000000000000000000000000000000000000
--- a/conversations/conv_034356.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.794747073563406,
-      "duration": 3.794747073563406,
-      "start_frame": 0,
-      "duration_frames": 60715,
-      "overlap": false,
-      "utterance_id": "6636-74113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6636-74113.flac |",
-      "real_speaker_id": "6636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.466841391145772,
-      "end_time": 8.608157488356529,
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-      "duration_frames": 66261,
-      "overlap": false,
-      "utterance_id": "8194-89390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.190976208450852,
-      "end_time": 13.439554554921138,
-      "duration": 4.2485783464702855,
-      "start_frame": 147055,
-      "duration_frames": 67977,
-      "overlap": false,
-      "utterance_id": "444-138076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-138076.flac |",
-      "real_speaker_id": "444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.904075061406374,
-      "end_time": 19.01651720818747,
-      "duration": 5.1124421467810945,
-      "start_frame": 222465,
-      "duration_frames": 81799,
-      "overlap": false,
-      "utterance_id": "8194-89390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 66261
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.454344861074023,
-      "end_time": 24.841524834326837,
-      "duration": 5.387179973252812,
-      "start_frame": 311269,
-      "duration_frames": 86194,
-      "overlap": false,
-      "utterance_id": "8194-89388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.213931793598718,
-      "end_time": 29.378062990809127,
-      "duration": 4.164131197210409,
-      "start_frame": 403422,
-      "duration_frames": 66626,
-      "overlap": false,
-      "utterance_id": "444-129208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-129208.flac |",
-      "real_speaker_id": "444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.676647523829867,
-      "end_time": 32.0,
-      "duration": 2.3233524761701325,
-      "start_frame": 474826,
-      "duration_frames": 37173,
-      "overlap": false,
-      "utterance_id": "8194-89390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 148060
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.841161957985024,
-      "start_time": 6.1669549749685055
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.6405670998120123,
-      "start_time": 10.437015308912464
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6636/laugh/0108.wav",
-      "duration": 1.4,
-      "start_time": 0.6726760646620566,
-      "speaker_id": "6636"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8194/laugh/0105.wav",
-      "duration": 1.0546027001051783,
-      "start_time": 5.874095212128851,
-      "speaker_id": "8194"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8194/cough/0041.wav",
-      "duration": 0.6460460812686282,
-      "start_time": 8.764491837933667,
-      "speaker_id": "8194"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/444/laugh/0118.wav",
-      "duration": 1.24,
-      "start_time": 7.8595784506412585,
-      "speaker_id": "444"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/444/cough/0002.wav",
-      "duration": 0.7481558802930615,
-      "start_time": 13.60297269947292,
-      "speaker_id": "444"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8194/laugh/0035.wav",
-      "duration": 1.3109304899846328,
-      "start_time": 25.13987452116811,
-      "speaker_id": "8194"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8194/cough/0048.wav",
-      "duration": 1.32,
-      "start_time": 28.169499165469503,
-      "speaker_id": "8194"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034360.json b/conversations/conv_034360.json
deleted file mode 100644
index 8a8ee56bd36e09ba3d8535b4b8ef0c6519832991..0000000000000000000000000000000000000000
--- a/conversations/conv_034360.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.231332370497614,
-      "duration": 5.231332370497614,
-      "start_frame": 0,
-      "duration_frames": 83701,
-      "overlap": false,
-      "utterance_id": "231-127936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-127936.flac |",
-      "real_speaker_id": "231",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.915575570817443,
-      "end_time": 12.622241781631821,
-      "duration": 6.706666210814378,
-      "start_frame": 94649,
-      "duration_frames": 107306,
-      "overlap": false,
-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.965753910173031,
-      "end_time": 17.985447174717645,
-      "duration": 5.019693264544613,
-      "start_frame": 207452,
-      "duration_frames": 80315,
-      "overlap": false,
-      "utterance_id": "3557-8341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8341.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.433561192971677,
-      "end_time": 23.345377478135912,
-      "duration": 4.911816285164236,
-      "start_frame": 294936,
-      "duration_frames": 78589,
-      "overlap": false,
-      "utterance_id": "231-127936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-127936.flac |",
-      "real_speaker_id": "231",
-      "position_frames": 83701
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.62704053231773,
-      "end_time": 28.7602578186018,
-      "duration": 5.133217286284071,
-      "start_frame": 378032,
-      "duration_frames": 82131,
-      "overlap": false,
-      "utterance_id": "3557-159359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-159359.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.15965632574544,
-      "end_time": 32.0,
-      "duration": 2.8403436742545587,
-      "start_frame": 466554,
-      "duration_frames": 45445,
-      "overlap": false,
-      "utterance_id": "625-132112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 24.949122194366367,
-      "start_time": 3.6144030489487626
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
-      "duration": 3.0536556798426275,
-      "start_time": 2.7035093670816095
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.52800230216602,
-      "start_time": 17.131079412932593
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_034376.json b/conversations/conv_034376.json
deleted file mode 100644
index 5ac9c5b6379fe6fb2d73d176cfe3665937887479..0000000000000000000000000000000000000000
--- a/conversations/conv_034376.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_034382.json b/conversations/conv_034382.json
deleted file mode 100644
index 0e8f4e5584f249cbdabb1bba004531f777085de6..0000000000000000000000000000000000000000
--- a/conversations/conv_034382.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-18527.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 0
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_034383.json b/conversations/conv_034383.json
deleted file mode 100644
index 613dc2b808ef514d64d968e915029fef8ac2208a..0000000000000000000000000000000000000000
--- a/conversations/conv_034383.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_034395.json b/conversations/conv_034395.json
deleted file mode 100644
index cb421125ba36ac62e1ec4f9d561010891fbd2338..0000000000000000000000000000000000000000
--- a/conversations/conv_034395.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": "3171"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7514/laugh/0023.wav",
-      "duration": 1.0593862088027837,
-      "start_time": 21.063384163417844,
-      "speaker_id": "7514"
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-    {
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-      "duration": 1.18,
-      "start_time": 21.100285931059368,
-      "speaker_id": "7514"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_034399.json b/conversations/conv_034399.json
deleted file mode 100644
index 285542c2f7d5c2ecaa069d7b25f2e53f8fb0e623..0000000000000000000000000000000000000000
--- a/conversations/conv_034399.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.83549984126154,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2854-51657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51657.flac |",
-      "real_speaker_id": "2854",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.922421307794798,
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-      "utterance_id": "2854-51658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51658.flac |",
-      "real_speaker_id": "2854",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "duration": 3.0373423851665167,
-      "start_frame": 139747,
-      "duration_frames": 48597,
-      "overlap": false,
-      "utterance_id": "2854-51657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51657.flac |",
-      "real_speaker_id": "2854",
-      "position_frames": 72225
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.298037357910264,
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-      "duration": 6.203825299100215,
-      "start_frame": 196768,
-      "duration_frames": 99261,
-      "overlap": false,
-      "utterance_id": "98-199",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-199.flac |",
-      "real_speaker_id": "98",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.63557310253265,
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-      "duration": 6.22602288581888,
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-      "duration_frames": 99616,
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-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.617708668062157,
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-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 99616
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2854/cough/0104.wav",
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-      "speaker_id": "2854"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034403.json b/conversations/conv_034403.json
deleted file mode 100644
index 881d88d2367da6edde973360b34c82961bf0dfaa..0000000000000000000000000000000000000000
--- a/conversations/conv_034403.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5890-72186.flac |",
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-      "utterance_id": "5890-72188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5890-72188.flac |",
-      "real_speaker_id": "5890",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.44001683726621,
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-      "overlap": false,
-      "utterance_id": "448-135065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/448-135065.flac |",
-      "real_speaker_id": "448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.979371104413566,
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-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 109125
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.632537366194555,
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-      "overlap": false,
-      "utterance_id": "5890-44534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5890-44534.flac |",
-      "real_speaker_id": "5890",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6804/laugh/0034.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034404.json b/conversations/conv_034404.json
deleted file mode 100644
index c5ec403cdc8ba8a28276ff30b3a1210df85c1ea9..0000000000000000000000000000000000000000
--- a/conversations/conv_034404.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.429866922954172,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154436.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148529.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154437.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 0
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-      "position_frames": 0
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_034414.json b/conversations/conv_034414.json
deleted file mode 100644
index 96be299c394ee73d7816580510611c155951c3d3..0000000000000000000000000000000000000000
--- a/conversations/conv_034414.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/209-157830.flac |",
-      "real_speaker_id": "209",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 4.467619047619047,
-      "start_time": 12.965370000365688
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
-      "duration": 1.5455175449478773,
-      "start_time": 25.38268160740114
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2276/cough/0054.wav",
-      "duration": 0.76,
-      "start_time": 0,
-      "speaker_id": "2276"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034415.json b/conversations/conv_034415.json
deleted file mode 100644
index ef91bfaa939befd5a71b40835be983cba828f48e..0000000000000000000000000000000000000000
--- a/conversations/conv_034415.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.353610024624195,
-      "duration": 5.353610024624195,
-      "start_frame": 0,
-      "duration_frames": 85657,
-      "overlap": false,
-      "utterance_id": "711-187466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187466.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.87071239191912,
-      "end_time": 10.01189187533878,
-      "duration": 4.141179483419659,
-      "start_frame": 93931,
-      "duration_frames": 66258,
-      "overlap": false,
-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.567231974138522,
-      "end_time": 16.783559144801224,
-      "duration": 6.216327170662702,
-      "start_frame": 169075,
-      "duration_frames": 99461,
-      "overlap": false,
-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.275141080569842,
-      "end_time": 23.175676122817972,
-      "duration": 5.900535042248131,
-      "start_frame": 276402,
-      "duration_frames": 94408,
-      "overlap": false,
-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.72481549096387,
-      "end_time": 28.873962175723175,
-      "duration": 5.149146684759304,
-      "start_frame": 379597,
-      "duration_frames": 82386,
-      "overlap": false,
-      "utterance_id": "6147-34607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34607.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.67027930717358,
-      "end_time": 32.0,
-      "duration": 2.3297206928264202,
-      "start_frame": 474724,
-      "duration_frames": 37275,
-      "overlap": false,
-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 99461
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
-      "duration": 21.065705728114196,
-      "start_time": 10.099939494508785
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
-      "duration": 2.4958996382997123,
-      "start_time": 20.920884923572466
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_4.wav",
-      "duration": 1.895283446712018,
-      "start_time": 2.6757664469747544
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/711/laugh/0022.wav",
-      "duration": 1.7507778994359844,
-      "start_time": 0,
-      "speaker_id": "711"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/711/laugh/0076.wav",
-      "duration": 1.16,
-      "start_time": 16.8347585630461,
-      "speaker_id": "711"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/cough/0015.wav",
-      "duration": 0.31780621002266507,
-      "start_time": 18.561268608716926,
-      "speaker_id": "8291"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6147/cough/0088.wav",
-      "duration": 1.147461847493904,
-      "start_time": 22.446217815862138,
-      "speaker_id": "6147"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034419.json b/conversations/conv_034419.json
deleted file mode 100644
index 3fbfede6b817b6265b3f2d6affbaf2603547bf19..0000000000000000000000000000000000000000
--- a/conversations/conv_034419.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.871461280023838,
-      "duration": 5.871461280023838,
-      "start_frame": 0,
-      "duration_frames": 93943,
-      "overlap": false,
-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.051555924793918,
-      "end_time": 9.305812978004464,
-      "duration": 3.254257053210547,
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-      "duration_frames": 52068,
-      "overlap": true,
-      "utterance_id": "2925-162505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
-      "real_speaker_id": "2925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.944853775535824,
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-      "duration": 5.776380129527989,
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-      "duration_frames": 92422,
-      "overlap": false,
-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 93943
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.646199694316994,
-      "end_time": 23.200846258422875,
-      "duration": 5.55464656410588,
-      "start_frame": 282339,
-      "duration_frames": 88874,
-      "overlap": false,
-      "utterance_id": "2925-162505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
-      "real_speaker_id": "2925",
-      "position_frames": 52068
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.928574701644074,
-      "end_time": 30.068982540133,
-      "duration": 6.140407838488926,
-      "start_frame": 382857,
-      "duration_frames": 98246,
-      "overlap": false,
-      "utterance_id": "911-130578",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-130578.flac |",
-      "real_speaker_id": "911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.51026807510315,
-      "end_time": 32.0,
-      "duration": 1.4897319248968515,
-      "start_frame": 488164,
-      "duration_frames": 23835,
-      "overlap": false,
-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 186365
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 2.0652584054764707,
-      "start_time": 12.11860403580587
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_11.wav",
-      "duration": 0.31777777777777777,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6945/laugh/0095.wav",
-      "duration": 0.5201912023070883,
-      "start_time": 0,
-      "speaker_id": "6945"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2925/laugh/0082.wav",
-      "duration": 1.318885261417397,
-      "start_time": 6.877347239049792,
-      "speaker_id": "2925"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2925/cough/0017.wav",
-      "duration": 0.36512219300813736,
-      "start_time": 9.367023663965746,
-      "speaker_id": "2925"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6945/laugh/0065.wav",
-      "duration": 1.26,
-      "start_time": 16.77755276560636,
-      "speaker_id": "6945"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6945/cough/0002.wav",
-      "duration": 0.9001115777250772,
-      "start_time": 13.559157611482867,
-      "speaker_id": "6945"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034423.json b/conversations/conv_034423.json
deleted file mode 100644
index 18a67a27e57c946099f92340cc55ad0a3eefe201..0000000000000000000000000000000000000000
--- a/conversations/conv_034423.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.331702983570345,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.595319759827475,
-      "duration": 4.595319759827475,
-      "start_frame": 0,
-      "duration_frames": 73525,
-      "overlap": false,
-      "utterance_id": "3830-12530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12530.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.432616247176855,
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-      "duration_frames": 105960,
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-      "utterance_id": "5682-32876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32876.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.430561119164839,
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-      "duration": 3.9331401348393134,
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-      "utterance_id": "3830-12529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12529.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.512909976519072,
-      "end_time": 20.91743573947912,
-      "duration": 4.404525762960049,
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-      "duration_frames": 70472,
-      "overlap": false,
-      "utterance_id": "3411-187012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3411-187012.flac |",
-      "real_speaker_id": "3411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.729623252674692,
-      "end_time": 25.48619399673573,
-      "duration": 3.756570744061038,
-      "start_frame": 347673,
-      "duration_frames": 60105,
-      "overlap": false,
-      "utterance_id": "3830-12530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12530.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 73525
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.683915029156438,
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-      "overlap": false,
-      "utterance_id": "5682-32877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32877.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3411/laugh/0034.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5682/laugh/0117.wav",
-      "duration": 1.12,
-      "start_time": 29.176778476716528,
-      "speaker_id": "5682"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034428.json b/conversations/conv_034428.json
deleted file mode 100644
index d7a41ffa292336bcfe9ea8da84cf1d27138afa18..0000000000000000000000000000000000000000
--- a/conversations/conv_034428.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.1382786604072805,
-      "duration": 6.1382786604072805,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8006-112593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112593.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "3825-134148",
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-      "real_speaker_id": "3825",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6913-80509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
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-      "position_frames": 90119
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
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-  "background_events": [],
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-      "event_class": "Dog",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.3977559935734907,
-      "start_time": 22.007569757126316,
-      "speaker_id": "3825"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8006/laugh/0069.wav",
-      "duration": 0.88,
-      "start_time": 28.79117555136372,
-      "speaker_id": "8006"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034435.json b/conversations/conv_034435.json
deleted file mode 100644
index 44c5c785127a73b204c22efc334d3bc55411260e..0000000000000000000000000000000000000000
--- a/conversations/conv_034435.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6788-111574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-111574.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.205509243511829,
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-      "utterance_id": "98-199",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-199.flac |",
-      "real_speaker_id": "98",
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-      "overlap": false,
-      "utterance_id": "2007-149877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-149877.flac |",
-      "real_speaker_id": "2007",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.451128250143512,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-149877.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 84001
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.269771526917747,
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-      "utterance_id": "98-121658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-121658.flac |",
-      "real_speaker_id": "98",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.29566789341312,
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-      "utterance_id": "6788-92420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-92420.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_2.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
-      "duration": 4.496650977519408,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6788/cough/0092.wav",
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-      "start_time": 0,
-      "speaker_id": "6788"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034439.json b/conversations/conv_034439.json
deleted file mode 100644
index 15958ff5e088e8d0ee872ffcf2ff5c58bd9e84d5..0000000000000000000000000000000000000000
--- a/conversations/conv_034439.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-182390.flac |",
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-      "overlap": false,
-      "utterance_id": "4438-52195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4438-52195.flac |",
-      "real_speaker_id": "4438",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 86630
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2405-148581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-148581.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.455942862014826,
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-      "utterance_id": "2930-163437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163437.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "2405"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034442.json b/conversations/conv_034442.json
deleted file mode 100644
index 0e381e70e5634fc3fee04e96b81238b747496891..0000000000000000000000000000000000000000
--- a/conversations/conv_034442.json
+++ /dev/null
@@ -1,88 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "168-129245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-129245.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.720427039757932,
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-      "utterance_id": "168-123450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-123450.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-123450.flac |",
-      "real_speaker_id": "168",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-100289.flac |",
-      "real_speaker_id": "5750",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "91-123521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123521.flac |",
-      "real_speaker_id": "91",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_3.wav",
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-      "start_time": 16.58171893848183
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_034454.json b/conversations/conv_034454.json
deleted file mode 100644
index 03b06f0c006768f6e8d953e8d209267e4f98a2cf..0000000000000000000000000000000000000000
--- a/conversations/conv_034454.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "175-123036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-123036.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "302",
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-      "utterance_id": "175-129587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-129587.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.889704202378805,
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-      "utterance_id": "4344-53906",
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-      "real_speaker_id": "4344",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.33985373862115,
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-      "duration": 4.6601462613788485,
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-      "utterance_id": "175-129587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-129587.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 96942
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_034458.json b/conversations/conv_034458.json
deleted file mode 100644
index 36c4f1346925c7a0badcba1d2c303f9fc84bbcf3..0000000000000000000000000000000000000000
--- a/conversations/conv_034458.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1721-142317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1721-142317.flac |",
-      "real_speaker_id": "1721",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1736",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-102849.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_034462.json b/conversations/conv_034462.json
deleted file mode 100644
index e754aa10912d465b1192f58f64372decfe4ab452..0000000000000000000000000000000000000000
--- a/conversations/conv_034462.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27768.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 86071
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
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-      "position_frames": 258756
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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\ No newline at end of file
diff --git a/conversations/conv_034469.json b/conversations/conv_034469.json
deleted file mode 100644
index 0941f35eda7809f4fccc49404fd63c1771e5be16..0000000000000000000000000000000000000000
--- a/conversations/conv_034469.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_034474.json b/conversations/conv_034474.json
deleted file mode 100644
index 1239a2dffd4eb74a3fc109677f109e55e75e4ef3..0000000000000000000000000000000000000000
--- a/conversations/conv_034474.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": "7092"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 21.180985637008604,
-      "speaker_id": "1046"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7092/laugh/0105.wav",
-      "duration": 1.54,
-      "start_time": 27.771323378906757,
-      "speaker_id": "7092"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034478.json b/conversations/conv_034478.json
deleted file mode 100644
index 946cbc416ae711a594cc3e46cc60473d0eefb77a..0000000000000000000000000000000000000000
--- a/conversations/conv_034478.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3483-115968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-115968.flac |",
-      "real_speaker_id": "3483",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.287817361760488,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.286699508961906,
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-      "overlap": false,
-      "utterance_id": "3483-119637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-119637.flac |",
-      "real_speaker_id": "3483",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.310316070078756,
-      "end_time": 21.973589416923712,
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-      "overlap": false,
-      "utterance_id": "1819-144402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144402.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.34268401985732,
-      "end_time": 27.60082515999096,
-      "duration": 6.258141140133641,
-      "start_frame": 341482,
-      "duration_frames": 100130,
-      "overlap": true,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 49163
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.04496713980877,
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-      "duration": 2.9550328601912312,
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-      "duration_frames": 47280,
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-      "utterance_id": "3483-115968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-115968.flac |",
-      "real_speaker_id": "3483",
-      "position_frames": 109661
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4044/laugh/0113.wav",
-      "duration": 1.12,
-      "start_time": 21.45455242335317,
-      "speaker_id": "4044"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034481.json b/conversations/conv_034481.json
deleted file mode 100644
index 280a295f4d1716c16936c8edb297aa55bf0d8595..0000000000000000000000000000000000000000
--- a/conversations/conv_034481.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5825-53035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-53035.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "5825-50883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-50883.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 110159
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.155555113186214,
-      "end_time": 32.0,
-      "duration": 6.844444886813786,
-      "start_frame": 402488,
-      "duration_frames": 109511,
-      "overlap": false,
-      "utterance_id": "5825-53035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-53035.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 93967
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
-      "duration": 1.6041040644127604,
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5825/laugh/0045.wav",
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-      "start_time": 0,
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-      "event_class": "cough",
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-      "duration": 0.46411564836705566,
-      "start_time": 24.605596752136798,
-      "speaker_id": "5825"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034486.json b/conversations/conv_034486.json
deleted file mode 100644
index 87ce9bbc2363a6365587402001cd8e1e34abf861..0000000000000000000000000000000000000000
--- a/conversations/conv_034486.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.137289743429489,
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-      "duration_frames": 83838,
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-      "utterance_id": "581-126955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/581-126955.flac |",
-      "real_speaker_id": "581",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.806438554037364,
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-      "overlap": false,
-      "utterance_id": "6269-66185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66185.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 58376
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66185.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 87081
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 119956
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.50461991392278,
-      "end_time": 32.0,
-      "duration": 0.49538008607721906,
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-      "duration_frames": 7926,
-      "overlap": false,
-      "utterance_id": "581-126957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/581-126957.flac |",
-      "real_speaker_id": "581",
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-  ],
-  "background_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/581/laugh/0004.wav",
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-      "start_time": 30.079412039868867,
-      "speaker_id": "581"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034490.json b/conversations/conv_034490.json
deleted file mode 100644
index 7e3311ee2a8e7e2ed7ed3a74151d5d2a0fb65fba..0000000000000000000000000000000000000000
--- a/conversations/conv_034490.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.48113455991582,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 5.10359315921547,
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-      "overlap": false,
-      "utterance_id": "2137-131751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-131751.flac |",
-      "real_speaker_id": "2137",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.389803479945506,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2137-131751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-131751.flac |",
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-      "segment_id": "seg0003",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_034497.json b/conversations/conv_034497.json
deleted file mode 100644
index c778fbd0add1b27860b0c23f2cd7354ee3e4870d..0000000000000000000000000000000000000000
--- a/conversations/conv_034497.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74242.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6705-74242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74242.flac |",
-      "real_speaker_id": "6705",
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-      "speaker_id": 2,
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-      "speaker_id": 0,
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-      "utterance_id": "6705-74243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74243.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.203288926634208,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-78186.flac |",
-      "real_speaker_id": "4267",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.614260888083173,
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-      "speaker_id": "7215"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034506.json b/conversations/conv_034506.json
deleted file mode 100644
index d950176851831e2a0dc06d154e0dec393d463bc2..0000000000000000000000000000000000000000
--- a/conversations/conv_034506.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-8371.flac |",
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-      "real_speaker_id": "7809",
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-      "position_frames": 164737
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\ No newline at end of file
diff --git a/conversations/conv_034507.json b/conversations/conv_034507.json
deleted file mode 100644
index b22b1425c1c698185b644b58a889ae4e51716024..0000000000000000000000000000000000000000
--- a/conversations/conv_034507.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_034511.json b/conversations/conv_034511.json
deleted file mode 100644
index 50fd2f4d09cd2090a11c6dec6af7e43f709559dc..0000000000000000000000000000000000000000
--- a/conversations/conv_034511.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "utterance_id": "6544-231862",
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-    {
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-      "speaker_id": "6544"
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-      "event_class": "cough",
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-      "duration": 0.7024706124488282,
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-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 14.959436294864572,
-      "speaker_id": "8575"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034527.json b/conversations/conv_034527.json
deleted file mode 100644
index e6a3565f6245c3c87b9b3604cf9175691dbb8b6f..0000000000000000000000000000000000000000
--- a/conversations/conv_034527.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-160887.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.13551007522897,
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-      "utterance_id": "1545-161007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.571948302602078,
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-      "start_frame": 313151,
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-      "overlap": true,
-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 61314
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.761481095518064,
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-      "utterance_id": "1545-160887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-160887.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 76481
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.50907584030726,
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-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 31.16,
-      "speaker_id": "2724"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034531.json b/conversations/conv_034531.json
deleted file mode 100644
index 5c271fe45ef4a70f432839747dbdb4187bbb016a..0000000000000000000000000000000000000000
--- a/conversations/conv_034531.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7789-103120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-103120.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-103120.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-12546.flac |",
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-      "speaker_id": 0,
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-      "utterance_id": "7315-86809",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7315-86809.flac |",
-      "real_speaker_id": "7315",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.91984343755361,
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-      "utterance_id": "7315-104382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7315-104382.flac |",
-      "real_speaker_id": "7315",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.962141594698707,
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-      "utterance_id": "4108-2772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2772.flac |",
-      "real_speaker_id": "4108",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034541.json b/conversations/conv_034541.json
deleted file mode 100644
index 498bbc00a548d7508c9f8ed4de63dfcd6f42e2cf..0000000000000000000000000000000000000000
--- a/conversations/conv_034541.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
-      "real_speaker_id": "8791",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
-      "real_speaker_id": "8791",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
-      "real_speaker_id": "8791",
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-    {
-      "segment_id": "seg0006",
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-      "speaker_id": "2638"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034546.json b/conversations/conv_034546.json
deleted file mode 100644
index 347f3844737549e4bcdefb3a1fe4e196c50cd299..0000000000000000000000000000000000000000
--- a/conversations/conv_034546.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126305.flac |",
-      "real_speaker_id": "458",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.172287765018638,
-      "end_time": 32.0,
-      "duration": 3.8277122349813624,
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-      "duration_frames": 61243,
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-      "utterance_id": "3928-10094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-10094.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Blender",
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-      "event_class": "cough",
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-      "start_time": 17.88594960827331,
-      "speaker_id": "4492"
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 29.642925085613363,
-      "speaker_id": "3928"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034550.json b/conversations/conv_034550.json
deleted file mode 100644
index 66af2953c93981929faeb6cec6e762c2befd1193..0000000000000000000000000000000000000000
--- a/conversations/conv_034550.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4640-19189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19189.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
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-    {
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-      "start_time": 6.358559064376998,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19189.flac |",
-      "real_speaker_id": "4640",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.916479206267184,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-160960.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 74093
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.103751012651863,
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-}
\ No newline at end of file
diff --git a/conversations/conv_034551.json b/conversations/conv_034551.json
deleted file mode 100644
index e9cbbd0f7e00ee92048beb3d30ac753236ac4a9b..0000000000000000000000000000000000000000
--- a/conversations/conv_034551.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123441.flac |",
-      "real_speaker_id": "737",
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-      "real_speaker_id": "3373",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7433",
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/737-123448.flac |",
-      "real_speaker_id": "737",
-      "position_frames": 77617
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89646.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "duration": 1.28,
-      "start_time": 5.145251682417714,
-      "speaker_id": "3373"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034566.json b/conversations/conv_034566.json
deleted file mode 100644
index ae792b6eb52ce9965b9d5a54918d29a76b8ed10c..0000000000000000000000000000000000000000
--- a/conversations/conv_034566.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 49386
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-      "position_frames": 96982
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 60763,
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-      "utterance_id": "2237-163673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-163673.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 168384
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 16.638640612908343,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "2237"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034570.json b/conversations/conv_034570.json
deleted file mode 100644
index 39211ba7cff0fc4b36667a630e6f74f8e50ffa13..0000000000000000000000000000000000000000
--- a/conversations/conv_034570.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.806159547488523,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6441046627413507,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.271197374790228,
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-      "real_speaker_id": "1363",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.00058786430383,
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-      "utterance_id": "1363-135842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034582.json b/conversations/conv_034582.json
deleted file mode 100644
index c0c49a1f4c6cca7c11b1b4212f933c46f384b47d..0000000000000000000000000000000000000000
--- a/conversations/conv_034582.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "7512",
-      "position_frames": 87856
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-      "utterance_id": "492-131887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/492-131887.flac |",
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-      "speaker_id": 1,
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-      "real_speaker_id": "7512",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294700.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 92573
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-  "background_events": [
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-      "event_class": "Frying",
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-      "speaker_id": "5062"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034585.json b/conversations/conv_034585.json
deleted file mode 100644
index 08c4b86c445f323e65289b770b0d60a5ec7d6a66..0000000000000000000000000000000000000000
--- a/conversations/conv_034585.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034589.json b/conversations/conv_034589.json
deleted file mode 100644
index 1644735265e6499354891b0eb6cfa84bab657c40..0000000000000000000000000000000000000000
--- a/conversations/conv_034589.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "speaker_id": "2152"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3072/laugh/0018.wav",
-      "duration": 1.0963138497518679,
-      "start_time": 29.555363828937253,
-      "speaker_id": "3072"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034593.json b/conversations/conv_034593.json
deleted file mode 100644
index 790e066f877db4821bc36ffaf8f246bd240b88f3..0000000000000000000000000000000000000000
--- a/conversations/conv_034593.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.47851191522476,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.963686232417267,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "205-159056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-159056.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.590000749679231,
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-      "duration": 4.617732647947454,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-96491.flac |",
-      "real_speaker_id": "7327",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.031628652633927,
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-      "duration": 4.934294863816944,
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-      "overlap": false,
-      "utterance_id": "5287-39165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5287-39165.flac |",
-      "real_speaker_id": "5287",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.78870506671887,
-      "end_time": 20.658704196641867,
-      "duration": 4.869999129922996,
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-      "duration_frames": 77919,
-      "overlap": true,
-      "utterance_id": "205-123882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-123882.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.443881949937715,
-      "end_time": 25.985000687175173,
-      "duration": 4.541118737237458,
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-      "duration_frames": 72657,
-      "overlap": true,
-      "utterance_id": "5287-39165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5287-39165.flac |",
-      "real_speaker_id": "5287",
-      "position_frames": 78948
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.443607910428273,
-      "end_time": 31.47851191522476,
-      "duration": 4.034904004796487,
-      "start_frame": 439097,
-      "duration_frames": 64558,
-      "overlap": false,
-      "utterance_id": "205-123882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-123882.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 77919
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/205/laugh/0035.wav",
-      "duration": 1.1674046629203825,
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-      "speaker_id": "205"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5287/laugh/0100.wav",
-      "duration": 1.24,
-      "start_time": 9.53028299722769,
-      "speaker_id": "5287"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034594.json b/conversations/conv_034594.json
deleted file mode 100644
index bbaf0a4076294806994fbdc620f78fe269dffa0d..0000000000000000000000000000000000000000
--- a/conversations/conv_034594.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.472157112193912,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6281-1315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.451903064472097,
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-      "utterance_id": "2368-157054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157054.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.811163919824654,
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-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 16.513511036682946,
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-      "utterance_id": "2368-157056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157056.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.146016737624386,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 59363
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.369113925246374,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157056.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 81061
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6281/laugh/0100.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "2368"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034602.json b/conversations/conv_034602.json
deleted file mode 100644
index ffe91fa1ee4eff35e1b525accd3b3e16999d38e2..0000000000000000000000000000000000000000
--- a/conversations/conv_034602.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "2792-144136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "2792",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "overlap": false,
-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 185658
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
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-      "position_frames": 274560
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2401/laugh/0055.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034603.json b/conversations/conv_034603.json
deleted file mode 100644
index 10f379e517029dda7b79d687874c3c072b9ec24c..0000000000000000000000000000000000000000
--- a/conversations/conv_034603.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1363-139304",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1363",
-      "position_frames": 64244
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1363/laugh/0091.wav",
-      "duration": 0.8165406353601707,
-      "start_time": 15.035087783903592,
-      "speaker_id": "1363"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2056/laugh/0050.wav",
-      "duration": 1.24,
-      "start_time": 14.267059227251286,
-      "speaker_id": "2056"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1363/laugh/0024.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "1363"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034605.json b/conversations/conv_034605.json
deleted file mode 100644
index bf79c2f4f531a9f76a247412242deeff1a12dfe1..0000000000000000000000000000000000000000
--- a/conversations/conv_034605.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.0228634970377,
-      "duration": 5.0228634970377,
-      "start_frame": 0,
-      "duration_frames": 80365,
-      "overlap": false,
-      "utterance_id": "8605-291172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-291172.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.76809412950729,
-      "end_time": 9.718903938053362,
-      "duration": 3.9508098085460728,
-      "start_frame": 92289,
-      "duration_frames": 63212,
-      "overlap": false,
-      "utterance_id": "2122-149350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.656236858671036,
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-      "duration": 3.9988471307539695,
-      "start_frame": 170499,
-      "duration_frames": 63981,
-      "overlap": false,
-      "utterance_id": "7730-304541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304541.flac |",
-      "real_speaker_id": "7730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.41560105476148,
-      "end_time": 22.63206605443807,
-      "duration": 6.216464999676591,
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-      "duration_frames": 99463,
-      "overlap": false,
-      "utterance_id": "8605-291172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-291172.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 80365
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.86117071513816,
-      "end_time": 29.059965035518132,
-      "duration": 6.198794320379971,
-      "start_frame": 365778,
-      "duration_frames": 99180,
-      "overlap": false,
-      "utterance_id": "7730-304535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304535.flac |",
-      "real_speaker_id": "7730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.79010846424984,
-      "end_time": 32.0,
-      "duration": 2.2098915357501596,
-      "start_frame": 476641,
-      "duration_frames": 35358,
-      "overlap": false,
-      "utterance_id": "2122-149350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
-      "position_frames": 63212
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_13.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8605/laugh/0083.wav",
-      "duration": 1.12,
-      "start_time": 5.250029061834348,
-      "speaker_id": "8605"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2122/laugh/0037.wav",
-      "duration": 1.24,
-      "start_time": 9.844280474774617,
-      "speaker_id": "2122"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2122/cough/0033.wav",
-      "duration": 0.833969292406811,
-      "start_time": 28.917814790913447,
-      "speaker_id": "2122"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034613.json b/conversations/conv_034613.json
deleted file mode 100644
index 477a09d20441b28c672405f81a2fafde170ed197..0000000000000000000000000000000000000000
--- a/conversations/conv_034613.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7061-85640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-85640.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.484119735007086,
-      "end_time": 8.027660239104755,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-14125.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "end_time": 12.77686335675366,
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-      "overlap": false,
-      "utterance_id": "4640-19187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19187.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.877176324398851,
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-      "start_frame": 206034,
-      "duration_frames": 78792,
-      "overlap": true,
-      "utterance_id": "4910-14125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-14125.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 56696
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.874450957935824,
-      "end_time": 24.870027268169284,
-      "duration": 5.995576310233459,
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-      "duration_frames": 95929,
-      "overlap": false,
-      "utterance_id": "7061-88086",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-88086.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.010439282748823,
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-      "utterance_id": "4640-19189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19189.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.56377506215395,
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-      "duration": 0.436224937846049,
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-      "utterance_id": "7061-88086",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-88086.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 95929
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7061/cough/0026.wav",
-      "duration": 1.207658095267132,
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-      "speaker_id": "7061"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034614.json b/conversations/conv_034614.json
deleted file mode 100644
index 97c26eda0f1f19344346bc2f1ff00eb388758637..0000000000000000000000000000000000000000
--- a/conversations/conv_034614.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.540486839894859,
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-      "start_frame": 0,
-      "duration_frames": 56647,
-      "overlap": false,
-      "utterance_id": "1492-11251",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-11251.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.974212307530847,
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-      "overlap": false,
-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "1492-11251",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-11251.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 56647
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.274795593859876,
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-      "duration_frames": 111843,
-      "overlap": false,
-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 83333
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.952406229662742,
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-      "overlap": false,
-      "utterance_id": "175-123036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-123036.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.734681623750355,
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-      "duration": 3.2653183762496454,
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-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 195176
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1492/laugh/0042.wav",
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-      "start_time": 15.072285328379364,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/175/laugh/0006.wav",
-      "duration": 1.44,
-      "start_time": 25.303219797910685,
-      "speaker_id": "175"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034618.json b/conversations/conv_034618.json
deleted file mode 100644
index b8637d00b455499daca6fc14899722e346654389..0000000000000000000000000000000000000000
--- a/conversations/conv_034618.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.424433150642183,
-      "duration": 5.424433150642183,
-      "start_frame": 0,
-      "duration_frames": 86790,
-      "overlap": false,
-      "utterance_id": "6836-61804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61804.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": false,
-      "utterance_id": "5319-42637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-42637.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6836-76549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-76549.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-42637.flac |",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40890.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
-      "duration": 1.0774603174603175,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6836/laugh/0014.wav",
-      "duration": 0.7226662284761274,
-      "start_time": 5.6371402113221345,
-      "speaker_id": "6836"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6836/cough/0110.wav",
-      "duration": 1.36,
-      "start_time": 10.111214642238131,
-      "speaker_id": "6836"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5278/laugh/0025.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "5278"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034622.json b/conversations/conv_034622.json
deleted file mode 100644
index b7e5921aaf806319691bae3b4ac2c8a4969bc3b2..0000000000000000000000000000000000000000
--- a/conversations/conv_034622.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.048593563058413,
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-      "utterance_id": "7389-295014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-295014.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.25746831633656,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-292563.flac |",
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-      "utterance_id": "2606-130138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-130138.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.69249047635332,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-295014.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 64777
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 87576
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "7389-175357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-175357.flac |",
-      "real_speaker_id": "7389",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "duration": 1.36,
-      "start_time": 13.059225714352154,
-      "speaker_id": "2606"
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-      "event_class": "laugh",
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-      "duration": 0.5342919801147668,
-      "start_time": 21.6227415063649,
-      "speaker_id": "7389"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034634.json b/conversations/conv_034634.json
deleted file mode 100644
index 12a31232132e33b625cc348b7480367b4ba150f7..0000000000000000000000000000000000000000
--- a/conversations/conv_034634.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 31.373195009080636,
-  "num_speakers": 3,
-  "overlap_rate": 0.375,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5154-26559",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26559.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.377828144976224,
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-      "utterance_id": "5154-26559",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26559.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 90968
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26558.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178030.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-6174.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "start_time": 26.939589224166863,
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-      "real_speaker_id": "3835",
-      "position_frames": 0
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-      "segment_id": "seg0007",
-      "speaker_id": 2,
-      "start_time": 30.34630468936823,
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-      "duration_frames": 16430,
-      "overlap": true,
-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "start_time": 11.318902069687384
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
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-      "speaker_id": "5154"
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034638.json b/conversations/conv_034638.json
deleted file mode 100644
index 656a009f424eccf90e148aab1cf06e9b7f4cdac5..0000000000000000000000000000000000000000
--- a/conversations/conv_034638.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6211-62844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-62844.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6211-60544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-60544.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.92557587844971,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
-      "real_speaker_id": "2051",
-      "position_frames": 108092
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6211-66280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-66280.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.352387033258637,
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-      "overlap": false,
-      "utterance_id": "6211-60544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-60544.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 62144
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.21473876064163,
-      "end_time": 32.0,
-      "duration": 0.7852612393583698,
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-      "utterance_id": "831-130746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130746.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034643.json b/conversations/conv_034643.json
deleted file mode 100644
index d227a13a09a82529a5474d4e89a6ac943381aece..0000000000000000000000000000000000000000
--- a/conversations/conv_034643.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.634247876126707,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.7376248845782545,
-      "duration": 5.7376248845782545,
-      "start_frame": 0,
-      "duration_frames": 91801,
-      "overlap": false,
-      "utterance_id": "6227-60173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-60173.flac |",
-      "real_speaker_id": "6227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.007574828352867,
-      "end_time": 10.942780648102417,
-      "duration": 4.935205819749551,
-      "start_frame": 96121,
-      "duration_frames": 78963,
-      "overlap": false,
-      "utterance_id": "4771-29403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-29403.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.889696578348879,
-      "end_time": 15.673387592658678,
-      "duration": 4.783691014309798,
-      "start_frame": 174235,
-      "duration_frames": 76539,
-      "overlap": true,
-      "utterance_id": "2285-163380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-163380.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.36933551590719,
-      "end_time": 21.37537360748189,
-      "duration": 4.006038091574702,
-      "start_frame": 277909,
-      "duration_frames": 64096,
-      "overlap": false,
-      "utterance_id": "4771-6409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.755817775017192,
-      "end_time": 26.836815513510494,
-      "duration": 5.080997738493302,
-      "start_frame": 348093,
-      "duration_frames": 81295,
-      "overlap": false,
-      "utterance_id": "2285-149890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-149890.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.25066856458043,
-      "end_time": 30.634247876126707,
-      "duration": 3.3835793115462764,
-      "start_frame": 436010,
-      "duration_frames": 54137,
-      "overlap": true,
-      "utterance_id": "4771-6409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 64096
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
-      "duration": 1.0652834467120182,
-      "start_time": 22.77092596545987
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6227/cough/0060.wav",
-      "duration": 1.0,
-      "start_time": 4.37400526536225,
-      "speaker_id": "6227"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4771/cough/0047.wav",
-      "duration": 0.745534995451927,
-      "start_time": 8.198688022420693,
-      "speaker_id": "4771"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2285/laugh/0045.wav",
-      "duration": 0.5270556442783365,
-      "start_time": 10.296883510831664,
-      "speaker_id": "2285"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4771/laugh/0088.wav",
-      "duration": 0.9362657390293738,
-      "start_time": 21.437496994322366,
-      "speaker_id": "4771"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2285/laugh/0093.wav",
-      "duration": 0.9151807803793011,
-      "start_time": 20.785981839525455,
-      "speaker_id": "2285"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4771/cough/0070.wav",
-      "duration": 0.8662456546791184,
-      "start_time": 26.287874430671764,
-      "speaker_id": "4771"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034644.json b/conversations/conv_034644.json
deleted file mode 100644
index 94d818a060b3939ad76c34eb9760388136216009..0000000000000000000000000000000000000000
--- a/conversations/conv_034644.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.425919982231325,
-      "duration": 5.425919982231325,
-      "start_frame": 0,
-      "duration_frames": 86814,
-      "overlap": false,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.0570052190693815,
-      "end_time": 11.00275149813989,
-      "duration": 3.9457462790705096,
-      "start_frame": 112912,
-      "duration_frames": 63131,
-      "overlap": false,
-      "utterance_id": "57-121742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121742.flac |",
-      "real_speaker_id": "57",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.224297998178098,
-      "end_time": 15.40947991378521,
-      "duration": 4.185181915607112,
-      "start_frame": 179588,
-      "duration_frames": 66962,
-      "overlap": true,
-      "utterance_id": "2607-87140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-87140.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.044871186356573,
-      "end_time": 22.102101202899203,
-      "duration": 6.057230016542629,
-      "start_frame": 256717,
-      "duration_frames": 96915,
-      "overlap": false,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 86814
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.351050486737485,
-      "end_time": 26.791189832486342,
-      "duration": 5.440139345748857,
-      "start_frame": 341616,
-      "duration_frames": 87042,
-      "overlap": true,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 183729
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.82583830542584,
-      "end_time": 32.0,
-      "duration": 4.17416169457416,
-      "start_frame": 445213,
-      "duration_frames": 66786,
-      "overlap": false,
-      "utterance_id": "2607-177740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177740.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
-      "duration": 0.24482993197278913,
-      "start_time": 16.865955843337403
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
-      "duration": 2.6868310973448013,
-      "start_time": 23.988436034372043
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/583/laugh/0094.wav",
-      "duration": 0.7390039898315512,
-      "start_time": 0,
-      "speaker_id": "583"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/57/laugh/0110.wav",
-      "duration": 0.8444806690555391,
-      "start_time": 9.74912376392503,
-      "speaker_id": "57"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/cough/0074.wav",
-      "duration": 0.7613869146807326,
-      "start_time": 10.33806121987211,
-      "speaker_id": "2607"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/cough/0009.wav",
-      "duration": 0.39585180393299435,
-      "start_time": 31.604148196067005,
-      "speaker_id": "2607"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034652.json b/conversations/conv_034652.json
deleted file mode 100644
index fd170e6ce6d8c3f3557f635d5dce11693f17200c..0000000000000000000000000000000000000000
--- a/conversations/conv_034652.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 73032,
-      "overlap": false,
-      "utterance_id": "2262-141714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141714.flac |",
-      "real_speaker_id": "2262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.062818115244776,
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-      "overlap": false,
-      "utterance_id": "2262-141714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141714.flac |",
-      "real_speaker_id": "2262",
-      "position_frames": 73032
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.220874900320144,
-      "end_time": 22.51883564655457,
-      "duration": 6.297960746234429,
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-      "duration_frames": 100767,
-      "overlap": true,
-      "utterance_id": "2262-141716",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141716.flac |",
-      "real_speaker_id": "2262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.74281740179835,
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-      "duration_frames": 95268,
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-      "utterance_id": "2262-141716",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141716.flac |",
-      "real_speaker_id": "2262",
-      "position_frames": 100767
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.89338549972844,
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-      "start_frame": 478294,
-      "duration_frames": 33705,
-      "overlap": false,
-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 102337
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
-      "duration": 14.690997732426304,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2262/laugh/0009.wav",
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-      "start_time": 9.848911455775383,
-      "speaker_id": "2262"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2262/cough/0119.wav",
-      "duration": 0.8114755831554605,
-      "start_time": 22.762334684137493,
-      "speaker_id": "2262"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/laugh/0030.wav",
-      "duration": 1.6558620954325671,
-      "start_time": 30.186657775470852,
-      "speaker_id": "45"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/cough/0019.wav",
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-      "start_time": 29.396982866003622,
-      "speaker_id": "45"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034655.json b/conversations/conv_034655.json
deleted file mode 100644
index ad5676c7b00c62d29c5e36ed608bf7acbd04e076..0000000000000000000000000000000000000000
--- a/conversations/conv_034655.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.5559827610873125,
-      "duration": 4.5559827610873125,
-      "start_frame": 0,
-      "duration_frames": 72895,
-      "overlap": false,
-      "utterance_id": "1296-138074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-138074.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.2858450212061605,
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-      "utterance_id": "6540-62512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-62512.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 68404,
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-      "utterance_id": "1296-138074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-138074.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 72895
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-62512.flac |",
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-      "position_frames": 85854
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_034659.json b/conversations/conv_034659.json
deleted file mode 100644
index 640299a5de1475cb756bb8fc978ef3fbee5478ff..0000000000000000000000000000000000000000
--- a/conversations/conv_034659.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1184-135536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135536.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.340247255274239,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76097.flac |",
-      "real_speaker_id": "6753",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "1184-135536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135536.flac |",
-      "real_speaker_id": "1184",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.511061499212865,
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-      "overlap": false,
-      "utterance_id": "6753-76098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76098.flac |",
-      "real_speaker_id": "6753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.3214722459428,
-      "end_time": 32.0,
-      "duration": 1.6785277540571997,
-      "start_frame": 485143,
-      "duration_frames": 26856,
-      "overlap": false,
-      "utterance_id": "6215-62347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-62347.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/84654.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_034663.json b/conversations/conv_034663.json
deleted file mode 100644
index c16e4f485fe5d6c8a9084b69d9df54ee1724e7f9..0000000000000000000000000000000000000000
--- a/conversations/conv_034663.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8346-244446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244446.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
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-      "real_speaker_id": "8346",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.543814837828258,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-84209.flac |",
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-      "utterance_id": "6670-84209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-84209.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 96686
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.6026473443211238,
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-      "overlap": false,
-      "utterance_id": "8346-244445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244445.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 69294
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
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-      "duration": 1.2,
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034675.json b/conversations/conv_034675.json
deleted file mode 100644
index cddb69d2f8b771dcd7cbc16146cba47786829b12..0000000000000000000000000000000000000000
--- a/conversations/conv_034675.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 91938
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6065",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.00155039451589,
-      "end_time": 32.0,
-      "duration": 2.9984496054841117,
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-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 250373
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/cough/0000.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/laugh/0012.wav",
-      "duration": 1.08,
-      "start_time": 27.830034303440538,
-      "speaker_id": "845"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034678.json b/conversations/conv_034678.json
deleted file mode 100644
index c24161a4959e719276efd253cd657c525c751d2e..0000000000000000000000000000000000000000
--- a/conversations/conv_034678.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.4983411744052,
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-      "utterance_id": "8312-279791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279791.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "1757",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279790.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157056.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157057.flac |",
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-      "position_frames": 0
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034679.json b/conversations/conv_034679.json
deleted file mode 100644
index e04951c509eeb933bc5fb17191ea30ff14cac532..0000000000000000000000000000000000000000
--- a/conversations/conv_034679.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "5977-46900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 0
-    },
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-      "start_time": 6.467300061395851,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
-      "position_frames": 97943
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-    {
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-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "5019-44339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-44339.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.937162462247908,
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-      "utterance_id": "254-127705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-127705.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.87236239804744,
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-      "duration": 2.1276376019525607,
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-      "utterance_id": "5019-38670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-38670.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034680.json b/conversations/conv_034680.json
deleted file mode 100644
index 7dd0210aa8ccd495cb11e179ab2818da51209d50..0000000000000000000000000000000000000000
--- a/conversations/conv_034680.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3564-132498.flac |",
-      "real_speaker_id": "3564",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141270.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 18.14009678442053,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3564-132498.flac |",
-      "real_speaker_id": "3564",
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-      "utterance_id": "1226-141279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.41694166730713,
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-      "duration": 3.5830583326928718,
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-      "utterance_id": "606-127691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/606-127691.flac |",
-      "real_speaker_id": "606",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-    {
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-      "speaker_id": "1226"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3564/laugh/0022.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "606"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034696.json b/conversations/conv_034696.json
deleted file mode 100644
index db13a4c1ae84dade0f7e5642f00a0f2771ab58e8..0000000000000000000000000000000000000000
--- a/conversations/conv_034696.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4910-27683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-27683.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293621.flac |",
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-      "utterance_id": "6359-64713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
-      "real_speaker_id": "6359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.808551776303709,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293619.flac |",
-      "real_speaker_id": "6097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "6359",
-      "position_frames": 87114
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6097-293621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293621.flac |",
-      "real_speaker_id": "6097",
-      "position_frames": 55636
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_034697.json b/conversations/conv_034697.json
deleted file mode 100644
index 4d3da7e976ea57437a56ff411ceb5f1ca07197db..0000000000000000000000000000000000000000
--- a/conversations/conv_034697.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "end_time": 5.232679371301787,
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-      "utterance_id": "3983-5371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5371.flac |",
-      "real_speaker_id": "3983",
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-    {
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-      "real_speaker_id": "3368",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "7794",
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-      "real_speaker_id": "3983",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_13.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3983/cough/0009.wav",
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-      "start_time": 5.319690768896007,
-      "speaker_id": "3983"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.1170509702647875,
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-      "speaker_id": "3983"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034701.json b/conversations/conv_034701.json
deleted file mode 100644
index b16273ce0b01572ada567175738739d14badb0bb..0000000000000000000000000000000000000000
--- a/conversations/conv_034701.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2341-163407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2341-163407.flac |",
-      "real_speaker_id": "2341",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.441583462486862,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
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-      "utterance_id": "3381-9921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
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-    },
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-      "segment_id": "seg0004",
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-      "start_time": 17.968365583680757,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 119261
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-      "segment_id": "seg0006",
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-      "event_class": "laugh",
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-      "speaker_id": "3381"
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-      "event_class": "laugh",
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-      "speaker_id": "8476"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034706.json b/conversations/conv_034706.json
deleted file mode 100644
index ff983a84ad7b57106675843ea289ecf77e429dbd..0000000000000000000000000000000000000000
--- a/conversations/conv_034706.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7424-98623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7424-98623.flac |",
-      "real_speaker_id": "7424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-69293.flac |",
-      "real_speaker_id": "4174",
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-    {
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-      "utterance_id": "7424-98623",
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-      "real_speaker_id": "7424",
-      "position_frames": 102266
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 61303,
-      "overlap": false,
-      "utterance_id": "7424-98608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7424-98608.flac |",
-      "real_speaker_id": "7424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.683306966353808,
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-      "utterance_id": "4174-159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-159.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_034710.json b/conversations/conv_034710.json
deleted file mode 100644
index beb07ec9ea6c26e2312b348793720ec3b8b5dfac..0000000000000000000000000000000000000000
--- a/conversations/conv_034710.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.778584914201005,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-279363.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
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-      "start_time": 5.640755087796627,
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-    {
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-    },
-    {
-      "segment_id": "seg0004",
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-    {
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-    {
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/911/laugh/0035.wav",
-      "duration": 1.5476267106159534,
-      "start_time": 15.464774152951067,
-      "speaker_id": "911"
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-    {
-      "event_class": "laugh",
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-      "start_time": 23.348845763448708,
-      "speaker_id": "4273"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034717.json b/conversations/conv_034717.json
deleted file mode 100644
index 5a6b5e3827bcd9762215158f45afbc27f7321ebb..0000000000000000000000000000000000000000
--- a/conversations/conv_034717.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.1021478390576,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 100189
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.952519308104108,
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-      "duration": 3.379624778722677,
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-      "overlap": false,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 194785
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.69271224180223,
-      "end_time": 30.24599884381286,
-      "duration": 6.55328660201063,
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-      "overlap": false,
-      "utterance_id": "4712-60531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-60531.flac |",
-      "real_speaker_id": "4712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.586041684820376,
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-      "start_frame": 473376,
-      "duration_frames": 24257,
-      "overlap": true,
-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 248858
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/708/laugh/0017.wav",
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-      "event_class": "cough",
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-      "speaker_id": "2100"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034726.json b/conversations/conv_034726.json
deleted file mode 100644
index 9b7e5d61d4d5a96e2e48d8f52a46db8d330be9a8..0000000000000000000000000000000000000000
--- a/conversations/conv_034726.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "7691-108625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-108625.flac |",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 79378
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.386550699246737,
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-      "utterance_id": "7691-108625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-108625.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 109055
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.86052795353404,
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-      "duration": 4.9067881132225315,
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-      "duration_frames": 78508,
-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 138189
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.482448294940955,
-      "end_time": 32.0,
-      "duration": 4.517551705059045,
-      "start_frame": 439719,
-      "duration_frames": 72280,
-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 216697
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7691/laugh/0040.wav",
-      "duration": 1.44,
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-      "speaker_id": "7691"
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-    {
-      "event_class": "cough",
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-    {
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-      "duration": 1.44,
-      "start_time": 15.935269392333694,
-      "speaker_id": "7691"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034730.json b/conversations/conv_034730.json
deleted file mode 100644
index 7c62bf6dba91f0ddb5bfb8b449c8c9219d2a493e..0000000000000000000000000000000000000000
--- a/conversations/conv_034730.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "3564-132498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3564-132498.flac |",
-      "real_speaker_id": "3564",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2758-86040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86040.flac |",
-      "real_speaker_id": "2758",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3564-132498.flac |",
-      "real_speaker_id": "3564",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "2758-86039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86039.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "duration": 2.839531873887573,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3564-132498.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-    {
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034731.json b/conversations/conv_034731.json
deleted file mode 100644
index 75e931ab8334924e520b88115a8cf2246dd28a1f..0000000000000000000000000000000000000000
--- a/conversations/conv_034731.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.005056459316226,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7342",
-      "position_frames": 77342
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "708-129393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
-      "position_frames": 243078
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
-      "duration": 1.4980944018491442,
-      "start_time": 16.435920361025783
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 4.4498172678385455,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/708/laugh/0046.wav",
-      "duration": 1.24,
-      "start_time": 1.816817455497923,
-      "speaker_id": "708"
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-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "708"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7342/cough/0010.wav",
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-      "speaker_id": "7342"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7342/laugh/0100.wav",
-      "duration": 1.04,
-      "start_time": 22.28278361964569,
-      "speaker_id": "7342"
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "708"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034740.json b/conversations/conv_034740.json
deleted file mode 100644
index 1d04b3cc57d0b4cdb5aa5de4176f893d5c168d6c..0000000000000000000000000000000000000000
--- a/conversations/conv_034740.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6254404283798483,
-      "duration": 3.6254404283798483,
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-      "overlap": false,
-      "utterance_id": "1681-142301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.2598334451838555,
-      "end_time": 10.199318754195438,
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-      "overlap": false,
-      "utterance_id": "3090-131878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3090-131878.flac |",
-      "real_speaker_id": "3090",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.035633845064623,
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-      "overlap": true,
-      "utterance_id": "4335-15081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15081.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.636022999286302,
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-      "duration": 4.197437648174082,
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-      "duration_frames": 67159,
-      "overlap": true,
-      "utterance_id": "3090-164191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3090-164191.flac |",
-      "real_speaker_id": "3090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.817279360074377,
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-      "duration_frames": 57658,
-      "overlap": false,
-      "utterance_id": "4335-15082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15082.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.686666503615985,
-      "end_time": 29.15836582285806,
-      "duration": 5.471699319242072,
-      "start_frame": 378986,
-      "duration_frames": 87547,
-      "overlap": false,
-      "utterance_id": "3090-131878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3090-131878.flac |",
-      "real_speaker_id": "3090",
-      "position_frames": 95031
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.40422522131616,
-      "end_time": 32.0,
-      "duration": 2.5957747786838397,
-      "start_frame": 470467,
-      "duration_frames": 41532,
-      "overlap": false,
-      "utterance_id": "4335-15081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15081.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 52858
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
-      "duration": 1.7548299319727891,
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1681/laugh/0055.wav",
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-      "speaker_id": "1681"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3090/laugh/0072.wav",
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-      "event_class": "laugh",
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-      "duration": 1.22,
-      "start_time": 18.989722604490137,
-      "speaker_id": "3090"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034746.json b/conversations/conv_034746.json
deleted file mode 100644
index ef48c101fb661b1ec17a45a7d69e2f10deaeb57f..0000000000000000000000000000000000000000
--- a/conversations/conv_034746.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.50238580056028,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5661-32892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32892.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.979909482088243,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
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-    {
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-      "utterance_id": "5661-32892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32892.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 69494
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.809343066178934,
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-      "overlap": false,
-      "utterance_id": "90-121085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-121085.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.729217836377423,
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-      "utterance_id": "5661-32891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32891.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.11207851609015,
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-      "duration_frames": 72326,
-      "overlap": false,
-      "utterance_id": "90-121085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-121085.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 67936
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.2769061822739,
-      "end_time": 31.50238580056028,
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-      "overlap": true,
-      "utterance_id": "2067-143535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 56348
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5661/cough/0030.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/90/cough/0026.wav",
-      "duration": 1.1191754163774847,
-      "start_time": 24.937047769197157,
-      "speaker_id": "90"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034747.json b/conversations/conv_034747.json
deleted file mode 100644
index ece8242813946f9f301b847dd4ac2d36a905963f..0000000000000000000000000000000000000000
--- a/conversations/conv_034747.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.318348974350243,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8006-112593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112593.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.781453681127961,
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "8006-112592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "968-122544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.288578543838888,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 76894
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.103090964920312,
-      "end_time": 32.0,
-      "duration": 3.8969090350796876,
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-      "duration_frames": 62350,
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-      "utterance_id": "968-122544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 89628
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8006/laugh/0028.wav",
-      "duration": 0.6408994671449181,
-      "start_time": 0,
-      "speaker_id": "8006"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8006/cough/0094.wav",
-      "duration": 1.0826636045761966,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/968/laugh/0047.wav",
-      "duration": 1.68,
-      "start_time": 30.32,
-      "speaker_id": "968"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034751.json b/conversations/conv_034751.json
deleted file mode 100644
index f75a6daf9395f29af1d0d4c6db07985998131fae..0000000000000000000000000000000000000000
--- a/conversations/conv_034751.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-14905.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128448.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.563074226816706,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-14905.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Frying",
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-      "duration": 1.4,
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-      "event_class": "laugh",
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-      "speaker_id": "4005"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034756.json b/conversations/conv_034756.json
deleted file mode 100644
index 2d93844ba2ece90bd513d792de9d90b3521feaf5..0000000000000000000000000000000000000000
--- a/conversations/conv_034756.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "3240-131231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.963266254747212,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-148992.flac |",
-      "real_speaker_id": "2089",
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-      "speaker_id": 1,
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-      "real_speaker_id": "5290",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 79342
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_034767.json b/conversations/conv_034767.json
deleted file mode 100644
index 7f76e2cbe717a8dbcc57d91adcb867f1dc0b683b..0000000000000000000000000000000000000000
--- a/conversations/conv_034767.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "7618",
-      "position_frames": 0
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-      "real_speaker_id": "7618",
-      "position_frames": 57210
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122615.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.23812773809921,
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-      "utterance_id": "1502-122615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122615.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 66303
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.3749132194162748,
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-      "utterance_id": "7618-102367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102367.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 145111
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034771.json b/conversations/conv_034771.json
deleted file mode 100644
index b832b8685e0cbad4cf6bf06f3c213f963b5d6445..0000000000000000000000000000000000000000
--- a/conversations/conv_034771.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.03539175929719,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6006-60489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60489.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5825-53035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-53035.flac |",
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-      "real_speaker_id": "317",
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-      "utterance_id": "5825-50883",
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_034784.json b/conversations/conv_034784.json
deleted file mode 100644
index f60e59fbd7e53c65ac9ed7c59fdbf8fcc4ff89fa..0000000000000000000000000000000000000000
--- a/conversations/conv_034784.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.224284811318904,
-      "duration": 6.224284811318904,
-      "start_frame": 0,
-      "duration_frames": 99588,
-      "overlap": false,
-      "utterance_id": "1736-152007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-152007.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.678481609317168,
-      "end_time": 11.29935998382722,
-      "duration": 4.620878374510053,
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-      "utterance_id": "7286-92930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7286-92930.flac |",
-      "real_speaker_id": "7286",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.821787153186968,
-      "end_time": 17.571164833684303,
-      "duration": 5.749377680497335,
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-      "overlap": false,
-      "utterance_id": "1736-142281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-142281.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.12544027079546,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7286-92935.flac |",
-      "real_speaker_id": "7286",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.48823331397615,
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-      "duration_frames": 100380,
-      "overlap": true,
-      "utterance_id": "3638-696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.06605490704815,
-      "end_time": 32.0,
-      "duration": 2.9339450929518485,
-      "start_frame": 465056,
-      "duration_frames": 46943,
-      "overlap": false,
-      "utterance_id": "7286-92935",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7286-92935.flac |",
-      "real_speaker_id": "7286",
-      "position_frames": 54477
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
-      "duration": 4.5355774922930525,
-      "start_time": 3.8147651031743313
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1736/cough/0010.wav",
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-      "event_class": "cough",
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-      "duration": 0.7175661129213347,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1736/laugh/0151.wav",
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-      "start_time": 11.025201794594945,
-      "speaker_id": "1736"
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-      "start_time": 21.70079932026639,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3638/laugh/0070.wav",
-      "duration": 0.8,
-      "start_time": 20.43805014810271,
-      "speaker_id": "3638"
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-    {
-      "event_class": "cough",
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-      "duration": 0.4374011473673908,
-      "start_time": 28.456653058678587,
-      "speaker_id": "7286"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034785.json b/conversations/conv_034785.json
deleted file mode 100644
index abdb2b2ce9784756cc6ab4e0c45c7b6605b31440..0000000000000000000000000000000000000000
--- a/conversations/conv_034785.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.104226761877165,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "83-11691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-11691.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.591757105975913,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/263-121285.flac |",
-      "real_speaker_id": "263",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "83-9960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-9960.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.898042039678998,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/263-121285.flac |",
-      "real_speaker_id": "263",
-      "position_frames": 106762
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.286699767962855,
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-      "overlap": false,
-      "utterance_id": "83-9960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-9960.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 109658
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.630531456601652,
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-      "duration": 1.4736953052755126,
-      "start_frame": 474088,
-      "duration_frames": 23579,
-      "overlap": true,
-      "utterance_id": "7065-74597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74597.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 16.561632653061224,
-      "start_time": 2.9071485658253544
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/263/laugh/0024.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7065/cough/0110.wav",
-      "duration": 1.0650926292308034,
-      "start_time": 28.37371010103683,
-      "speaker_id": "7065"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034788.json b/conversations/conv_034788.json
deleted file mode 100644
index c23ab15e41541130efa08687f3aa5c14ee7acb16..0000000000000000000000000000000000000000
--- a/conversations/conv_034788.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
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-    {
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-      "real_speaker_id": "6540",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6189-64708.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-232291.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "6189",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-232291.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 51512
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6540/cough/0025.wav",
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-      "start_time": 30.84,
-      "speaker_id": "6540"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034792.json b/conversations/conv_034792.json
deleted file mode 100644
index 35adf564ba18f2573fc7863782b9ce2b2a528850..0000000000000000000000000000000000000000
--- a/conversations/conv_034792.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-109663.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-179183.flac |",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-159771.flac |",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-      "speaker_id": "1841"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034802.json b/conversations/conv_034802.json
deleted file mode 100644
index 95fdc8cf3a14f371e287050d91b30c855487004f..0000000000000000000000000000000000000000
--- a/conversations/conv_034802.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286666.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275149.flac |",
-      "real_speaker_id": "7848",
-      "position_frames": 0
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-      "utterance_id": "7155-249840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-249840.flac |",
-      "real_speaker_id": "7155",
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-      "speaker_id": 0,
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-      "real_speaker_id": "8470",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275129.flac |",
-      "real_speaker_id": "7848",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.147391692941383,
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\ No newline at end of file
diff --git a/conversations/conv_034803.json b/conversations/conv_034803.json
deleted file mode 100644
index 023e293e23a363b3dfd1e297c7004b7b5c895197..0000000000000000000000000000000000000000
--- a/conversations/conv_034803.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2929-86777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-86777.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "3537",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
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-      "segment_id": "seg0004",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034815.json b/conversations/conv_034815.json
deleted file mode 100644
index 37cafac3d4000102d81546a76da5f09d175b52d1..0000000000000000000000000000000000000000
--- a/conversations/conv_034815.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "3357",
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-    {
-      "segment_id": "seg0001",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_034819.json b/conversations/conv_034819.json
deleted file mode 100644
index 52f34e4a6c4a31333e3cb5c4bd6d8e1b589371c8..0000000000000000000000000000000000000000
--- a/conversations/conv_034819.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7246-110053",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-110053.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
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-      "position_frames": 185136
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.24,
-      "start_time": 11.609820084670506,
-      "speaker_id": "7246"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034823.json b/conversations/conv_034823.json
deleted file mode 100644
index 98c0ef6a13a48c8d56e9a21e299fb787eaf18572..0000000000000000000000000000000000000000
--- a/conversations/conv_034823.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.405613901994034,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1230-1068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-1068.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.981673942893194,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-1068.flac |",
-      "real_speaker_id": "1230",
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-      "utterance_id": "1230-139225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139225.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.834321437450985,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-182396.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.895720226945148,
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-      "utterance_id": "1230-139225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139225.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 57881
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-182396.flac |",
-      "real_speaker_id": "4013",
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-  "background_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034828.json b/conversations/conv_034828.json
deleted file mode 100644
index b9066d00f83c5bd01ee0ca4dc8138047cf74f44b..0000000000000000000000000000000000000000
--- a/conversations/conv_034828.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4344",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
-      "real_speaker_id": "4771",
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_034835.json b/conversations/conv_034835.json
deleted file mode 100644
index 7afb5b9bb560e104d8955f895b47bcf38698a0bf..0000000000000000000000000000000000000000
--- a/conversations/conv_034835.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "7085-2327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-2327.flac |",
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-      "real_speaker_id": "1639",
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\ No newline at end of file
diff --git a/conversations/conv_034839.json b/conversations/conv_034839.json
deleted file mode 100644
index 7e9f5473df4ec9a8a49dc39ebb7233e9f9b44420..0000000000000000000000000000000000000000
--- a/conversations/conv_034839.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
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-      "utterance_id": "3285-121401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121401.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 83957
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.254763306691867,
-      "end_time": 32.0,
-      "duration": 2.745236693308133,
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-      "duration_frames": 43923,
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-      "utterance_id": "7073-114963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2361/laugh/0056.wav",
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-      "speaker_id": "2361"
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-      "event_class": "cough",
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-      "duration": 0.9546469196250194,
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-      "speaker_id": "3285"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7073/laugh/0052.wav",
-      "duration": 0.9138247836918109,
-      "start_time": 29.53996434256861,
-      "speaker_id": "7073"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034842.json b/conversations/conv_034842.json
deleted file mode 100644
index ccaa2c807da214954955c415621330ed66bef153..0000000000000000000000000000000000000000
--- a/conversations/conv_034842.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.822061952152719,
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-      "start_frame": 0,
-      "duration_frames": 93152,
-      "overlap": false,
-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.465987580283886,
-      "end_time": 9.740552688218507,
-      "duration": 3.2745651079346203,
-      "start_frame": 103455,
-      "duration_frames": 52393,
-      "overlap": false,
-      "utterance_id": "243-12956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-12956.flac |",
-      "real_speaker_id": "243",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.573486452873489,
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-      "duration_frames": 99709,
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-      "utterance_id": "243-11595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-11595.flac |",
-      "real_speaker_id": "243",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.590537823816202,
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-      "utterance_id": "6370-26876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-26876.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.751333920321144,
-      "end_time": 29.790937322049654,
-      "duration": 5.039603401728509,
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-      "overlap": false,
-      "utterance_id": "6798-77740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77740.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.250561246459945,
-      "end_time": 32.0,
-      "duration": 1.7494387535400548,
-      "start_frame": 484008,
-      "duration_frames": 27991,
-      "overlap": false,
-      "utterance_id": "243-11266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-11266.flac |",
-      "real_speaker_id": "243",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 25.608657525594946,
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "start_time": 23.564991610106166,
-      "speaker_id": "6370"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6798/cough/0096.wav",
-      "duration": 0.6621432454208938,
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-      "speaker_id": "6798"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/243/laugh/0053.wav",
-      "duration": 1.36,
-      "start_time": 28.868716324998566,
-      "speaker_id": "243"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034854.json b/conversations/conv_034854.json
deleted file mode 100644
index d26b5977149b1ed90fe4d17c08e59c678b9331e0..0000000000000000000000000000000000000000
--- a/conversations/conv_034854.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.651625036699115,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-163510.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 86738
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.69575711825692,
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-      "utterance_id": "3132-163510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-163510.flac |",
-      "real_speaker_id": "3132",
-      "position_frames": 100615
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.329051736675908,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 159621
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.78694326193787,
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-      "duration": 3.2130567380621287,
-      "start_frame": 460591,
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-      "overlap": false,
-      "utterance_id": "3132-167603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-167603.flac |",
-      "real_speaker_id": "3132",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6353/laugh/0006.wav",
-      "duration": 1.44,
-      "start_time": 0,
-      "speaker_id": "6353"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6353/laugh/0044.wav",
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-      "start_time": 16.75913151520256,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6353/cough/0067.wav",
-      "duration": 0.628119367735259,
-      "start_time": 16.59068422771733,
-      "speaker_id": "6353"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034858.json b/conversations/conv_034858.json
deleted file mode 100644
index 82f4e75609080b73d4c292d12d6d99bda86bfc92..0000000000000000000000000000000000000000
--- a/conversations/conv_034858.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "end_time": 6.32460367406978,
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-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.709333057912159,
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-      "real_speaker_id": "5038",
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-      "utterance_id": "3001-160952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160952.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 20.841771730291356,
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-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.953454900348547,
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-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 71223
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.7170568075467862,
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-      "duration_frames": 43472,
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-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 101193
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 1.8902996775947931,
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "speaker_id": "3001"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034862.json b/conversations/conv_034862.json
deleted file mode 100644
index a4c556d07e15d2b50349d4dbe783f30e470d67ed..0000000000000000000000000000000000000000
--- a/conversations/conv_034862.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "6880-216547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6880-216547.flac |",
-      "real_speaker_id": "6880",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 119913
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034869.json b/conversations/conv_034869.json
deleted file mode 100644
index d805623774835063575b860099f791704bd7b0cd..0000000000000000000000000000000000000000
--- a/conversations/conv_034869.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.430715245178064,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284445.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
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-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 97441
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.75243329278147,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62556.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284445.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 62266
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034874.json b/conversations/conv_034874.json
deleted file mode 100644
index b34ee29f86bf33c2e502341802365aa849cafe79..0000000000000000000000000000000000000000
--- a/conversations/conv_034874.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "6540",
-      "position_frames": 101166
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77911.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.402641594779077,
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-      "utterance_id": "6540-62512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-62512.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7220-77907",
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-      "real_speaker_id": "7220",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "speaker_id": "7220"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034878.json b/conversations/conv_034878.json
deleted file mode 100644
index 33f8005ae7cee138f80553bd8f74194fb1bbe07b..0000000000000000000000000000000000000000
--- a/conversations/conv_034878.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2553-163692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163692.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
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-      "duration_frames": 102992,
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-      "utterance_id": "2553-163728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163728.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.03301820153462,
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-      "utterance_id": "8273-283130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-283130.flac |",
-      "real_speaker_id": "8273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.543494171232666,
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-      "duration": 5.456505828767334,
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-      "overlap": false,
-      "utterance_id": "2553-163692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163692.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 53579
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.24,
-      "start_time": 14.08801426123537,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8273/laugh/0023.wav",
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-      "speaker_id": "8273"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034881.json b/conversations/conv_034881.json
deleted file mode 100644
index b95cfb004b99d8f047b856ce472774c13ff83fe7..0000000000000000000000000000000000000000
--- a/conversations/conv_034881.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.567674185835581,
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-      "real_speaker_id": "7145",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123291.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 53006
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.917214046734816,
-      "end_time": 32.0,
-      "duration": 5.082785953265184,
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-      "utterance_id": "887-123289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123289.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "speaker_id": "7145"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034886.json b/conversations/conv_034886.json
deleted file mode 100644
index dcc18364596ef983e4d55f002429ff988ff52d8f..0000000000000000000000000000000000000000
--- a/conversations/conv_034886.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1901-60017",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-60017.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.6209232472331676,
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-      "real_speaker_id": "2628",
-      "position_frames": 0
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-      "real_speaker_id": "2628",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1901-146686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-146686.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_034890.json b/conversations/conv_034890.json
deleted file mode 100644
index 97a4dc7e03a010b98c23804e25f9d9e09af0da40..0000000000000000000000000000000000000000
--- a/conversations/conv_034890.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5890-44534.flac |",
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-      "real_speaker_id": "6956",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-132494.flac |",
-      "real_speaker_id": "978",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6956-81870.flac |",
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-      "position_frames": 60778
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034897.json b/conversations/conv_034897.json
deleted file mode 100644
index 6b9b5b69be99069911652543cf3eabf520df4bd0..0000000000000000000000000000000000000000
--- a/conversations/conv_034897.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/118/laugh/0116.wav",
-      "duration": 0.6864417728894419,
-      "start_time": 18.403973636447247,
-      "speaker_id": "118"
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-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 27.291503635764396,
-      "speaker_id": "1607"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034907.json b/conversations/conv_034907.json
deleted file mode 100644
index 7911f62a1b8c090a1e0f36182e87740f7fbe6f4a..0000000000000000000000000000000000000000
--- a/conversations/conv_034907.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "3733-140718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.4630026910373,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 94397
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.807008638434894,
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-      "utterance_id": "3733-140718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 169413
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.186994834128672,
-      "end_time": 26.77341625472132,
-      "duration": 5.586421420592645,
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 88582
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 177964
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "6875"
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-}
\ No newline at end of file
diff --git a/conversations/conv_034911.json b/conversations/conv_034911.json
deleted file mode 100644
index 5c18bb0b8e087b97109c7e8da71517a44a874362..0000000000000000000000000000000000000000
--- a/conversations/conv_034911.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147968.flac |",
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "2085",
-      "position_frames": 77717
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.809784789656305,
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-      "duration": 5.226605907570357,
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-      "overlap": false,
-      "utterance_id": "2085-147968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147968.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 134993
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_034927.json b/conversations/conv_034927.json
deleted file mode 100644
index 578a8badc2f0fa9e8a86ab6d7d5b122f78dd0199..0000000000000000000000000000000000000000
--- a/conversations/conv_034927.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3242-67168.flac |",
-      "real_speaker_id": "3242",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3214-167607.flac |",
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-      "utterance_id": "3242-8112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3242-8112.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034931.json b/conversations/conv_034931.json
deleted file mode 100644
index 17459169a85c394020721d0dc5bb60250475c6ea..0000000000000000000000000000000000000000
--- a/conversations/conv_034931.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2045-158081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2045-158081.flac |",
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-      "position_frames": 0
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-    {
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-      "duration": 1.52,
-      "start_time": 14.758997048161824,
-      "speaker_id": "2045"
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-    {
-      "event_class": "cough",
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-      "duration": 0.4310147711367016,
-      "start_time": 14.527753204275717,
-      "speaker_id": "8527"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2045/laugh/0065.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "2045"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034946.json b/conversations/conv_034946.json
deleted file mode 100644
index 488936af0da50264e00174b8b38ec855aefe2496..0000000000000000000000000000000000000000
--- a/conversations/conv_034946.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.310154146832572,
-      "end_time": 8.872831776728901,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166421.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.940831092781565,
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-      "overlap": false,
-      "utterance_id": "5724-13364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.131100302510092,
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-      "overlap": false,
-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 64670
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.805419147779673,
-      "end_time": 28.145845058332362,
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-      "duration_frames": 101446,
-      "overlap": false,
-      "utterance_id": "3070-166423",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166423.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.237498621248648,
-      "end_time": 32.0,
-      "duration": 2.7625013787513524,
-      "start_frame": 467799,
-      "duration_frames": 44200,
-      "overlap": false,
-      "utterance_id": "5724-13364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 76660
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
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-    {
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-      "start_time": 13.942703687194113,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3070/cough/0111.wav",
-      "duration": 1.0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5724/laugh/0071.wav",
-      "duration": 0.5507119409392448,
-      "start_time": 31.449288059060756,
-      "speaker_id": "5724"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034947.json b/conversations/conv_034947.json
deleted file mode 100644
index 73adf43d0c5744933cb1f76f51ffd5b2aaebd84f..0000000000000000000000000000000000000000
--- a/conversations/conv_034947.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2825-6391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-6391.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.652998500906276,
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-      "duration": 4.15680299171315,
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-      "utterance_id": "1473-135657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.423720761594836,
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-      "overlap": true,
-      "utterance_id": "2825-666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-666.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.755025059103282,
-      "end_time": 26.211168862745744,
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-      "utterance_id": "1473-135657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 66508
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.474694757223553,
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-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 52911
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-      "start_time": 0,
-      "speaker_id": "2825"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034950.json b/conversations/conv_034950.json
deleted file mode 100644
index a79091fc170d6a6053606292b52892ca0286d7de..0000000000000000000000000000000000000000
--- a/conversations/conv_034950.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4667-92224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92224.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
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-      "segment_id": "seg0002",
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-      "utterance_id": "329-862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
-      "real_speaker_id": "329",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "6370",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "329-862",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-862.flac |",
-      "real_speaker_id": "329",
-      "position_frames": 74535
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 28.26931090657145,
-      "speaker_id": "329"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_034957.json b/conversations/conv_034957.json
deleted file mode 100644
index 624d24e99932f9d18fc256b918e7b6f90a115b0b..0000000000000000000000000000000000000000
--- a/conversations/conv_034957.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.163046313893435,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.1046643405112375,
-      "duration": 6.1046643405112375,
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-      "overlap": false,
-      "utterance_id": "7423-89169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89169.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.741689010794913,
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-      "real_speaker_id": "7096",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5242-35921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
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-    {
-      "segment_id": "seg0004",
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-}
\ No newline at end of file
diff --git a/conversations/conv_034966.json b/conversations/conv_034966.json
deleted file mode 100644
index f59f089114ffe8a73072903fb152f97baf220a89..0000000000000000000000000000000000000000
--- a/conversations/conv_034966.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132650.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 19.606675180582545,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113331.flac |",
-      "real_speaker_id": "8005",
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-      "segment_id": "seg0004",
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-      "utterance_id": "434-132645",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132645.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8005-113330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113330.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_034970.json b/conversations/conv_034970.json
deleted file mode 100644
index cfce009c73e7915495c5b2b1c71d4dbd59d983e3..0000000000000000000000000000000000000000
--- a/conversations/conv_034970.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6121-9014.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-150469.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 76394
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_034982.json b/conversations/conv_034982.json
deleted file mode 100644
index 60f0907ba46f7db6016745d5a7219c6fb1b4db26..0000000000000000000000000000000000000000
--- a/conversations/conv_034982.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_034985.json b/conversations/conv_034985.json
deleted file mode 100644
index 6ff5df0449168b4ed4d771999df1de9e945a2603..0000000000000000000000000000000000000000
--- a/conversations/conv_034985.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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\ No newline at end of file
diff --git a/conversations/conv_034989.json b/conversations/conv_034989.json
deleted file mode 100644
index cb11a7422391e22bd61b01fd557803ff6585f849..0000000000000000000000000000000000000000
--- a/conversations/conv_034989.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "8334",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 161820
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_034993.json b/conversations/conv_034993.json
deleted file mode 100644
index 5f55cb3fdb3bf6ebb045ba4dd44bccbdd9a2b46c..0000000000000000000000000000000000000000
--- a/conversations/conv_034993.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "753",
-      "position_frames": 49737
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\ No newline at end of file
diff --git a/conversations/conv_034994.json b/conversations/conv_034994.json
deleted file mode 100644
index e11f5949df92b2201349c2f383b0c57dc1b06c55..0000000000000000000000000000000000000000
--- a/conversations/conv_034994.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_035002.json b/conversations/conv_035002.json
deleted file mode 100644
index 561e012b4ca3380cc41877285120e8dc220e3b01..0000000000000000000000000000000000000000
--- a/conversations/conv_035002.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 23.509247468207757,
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-      "utterance_id": "8770-295465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295465.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 109161
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.699381327913418,
-      "end_time": 32.0,
-      "duration": 2.300618672086582,
-      "start_frame": 475190,
-      "duration_frames": 36809,
-      "overlap": false,
-      "utterance_id": "3618-175932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175932.flac |",
-      "real_speaker_id": "3618",
-      "position_frames": 77429
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.7085047289600537,
-      "start_time": 8.854316387572187
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.4597946025399042,
-      "start_time": 3.8821565241738343
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8770/laugh/0084.wav",
-      "duration": 0.7716554981240071,
-      "start_time": 6.842314205142087,
-      "speaker_id": "8770"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3618/laugh/0035.wav",
-      "duration": 1.2,
-      "start_time": 6.080342435356726,
-      "speaker_id": "3618"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3618/cough/0077.wav",
-      "duration": 1.0305223700187394,
-      "start_time": 16.44093678762431,
-      "speaker_id": "3618"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3618/laugh/0097.wav",
-      "duration": 0.8923950915343601,
-      "start_time": 28.619908848767224,
-      "speaker_id": "3618"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035005.json b/conversations/conv_035005.json
deleted file mode 100644
index c7e7532bf700d4047d58458f625b56f8b95231b5..0000000000000000000000000000000000000000
--- a/conversations/conv_035005.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.473673794014367,
-      "duration": 3.473673794014367,
-      "start_frame": 0,
-      "duration_frames": 55578,
-      "overlap": false,
-      "utterance_id": "3008-164328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.430045375788741,
-      "end_time": 10.343475216904071,
-      "duration": 5.91342984111533,
-      "start_frame": 70880,
-      "duration_frames": 94614,
-      "overlap": false,
-      "utterance_id": "7376-92940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-92940.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.289549983863829,
-      "end_time": 16.84575899371224,
-      "duration": 5.556209009848412,
-      "start_frame": 180632,
-      "duration_frames": 88899,
-      "overlap": false,
-      "utterance_id": "3008-164327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.980720647718126,
-      "end_time": 22.656451710699713,
-      "duration": 5.675731062981588,
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-      "overlap": false,
-      "utterance_id": "7376-64577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-64577.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.201681775813206,
-      "end_time": 29.630467399678267,
-      "duration": 6.428785623865062,
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-      "duration_frames": 102860,
-      "overlap": false,
-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.432596627929385,
-      "end_time": 32.0,
-      "duration": 1.5674033720706149,
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-      "duration_frames": 25078,
-      "overlap": false,
-      "utterance_id": "3008-164328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 55578
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
-      "duration": 2.4975736961451247,
-      "start_time": 7.485300866386859
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3008/cough/0010.wav",
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-      "duration": 1.0643751384508564,
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-      "speaker_id": "7376"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035009.json b/conversations/conv_035009.json
deleted file mode 100644
index 509e09dcb171f96ecb04ab19d9483a7fd8c1c37a..0000000000000000000000000000000000000000
--- a/conversations/conv_035009.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.644231996584278,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.191024998994077,
-      "duration": 5.191024998994077,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3294-167597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167597.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.094912258430151,
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-      "overlap": false,
-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.668868337164461,
-      "end_time": 17.67735004870613,
-      "duration": 6.00848171154167,
-      "start_frame": 186701,
-      "duration_frames": 96135,
-      "overlap": false,
-      "utterance_id": "3294-167597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167597.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 83056
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.206993060762773,
-      "end_time": 25.159061137642116,
-      "duration": 6.952068076879343,
-      "start_frame": 291311,
-      "duration_frames": 111233,
-      "overlap": false,
-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 83219
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.549205230575335,
-      "end_time": 31.644231996584278,
-      "duration": 6.095026766008941,
-      "start_frame": 408787,
-      "duration_frames": 97520,
-      "overlap": false,
-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 194452
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
-      "duration": 0.4961451247165533,
-      "start_time": 22.98512627745541
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1780/cough/0042.wav",
-      "duration": 0.5990202771431272,
-      "start_time": 17.418035898193445,
-      "speaker_id": "1780"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035013.json b/conversations/conv_035013.json
deleted file mode 100644
index 9ba5f874d48ce9bd5f4eaf4169c8ee842960de70..0000000000000000000000000000000000000000
--- a/conversations/conv_035013.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.896079674953289,
-      "duration": 3.896079674953289,
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-      "overlap": false,
-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.0983219949933325,
-      "end_time": 7.845092304969374,
-      "duration": 3.746770309976042,
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-      "duration_frames": 59948,
-      "overlap": true,
-      "utterance_id": "3244-10691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10691.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.291854840699516,
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-      "duration": 5.0546095813603555,
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-      "duration_frames": 80873,
-      "overlap": false,
-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 62337
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.723113831634729,
-      "end_time": 18.939396228160604,
-      "duration": 4.216282396525873,
-      "start_frame": 235569,
-      "duration_frames": 67460,
-      "overlap": false,
-      "utterance_id": "2445-148556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
-      "real_speaker_id": "2445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.725102975586683,
-      "end_time": 24.03352600507848,
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-      "duration_frames": 84934,
-      "overlap": true,
-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 143210
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.084775319148676,
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-      "duration": 5.135154801831798,
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-      "duration_frames": 82162,
-      "overlap": false,
-      "utterance_id": "3244-10691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10691.flac |",
-      "real_speaker_id": "3244",
-      "position_frames": 59948
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.024084405439275,
-      "end_time": 32.0,
-      "duration": 0.9759155945607247,
-      "start_frame": 496385,
-      "duration_frames": 15614,
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-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 228144
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3244/cough/0000.wav",
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-      "start_time": 3.05453973494762,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/851/laugh/0012.wav",
-      "duration": 1.4,
-      "start_time": 14.37172816832069,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3244/cough/0097.wav",
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-      "start_time": 24.595874012320316,
-      "speaker_id": "3244"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035014.json b/conversations/conv_035014.json
deleted file mode 100644
index 3a293d593bdbd7ff0f69ec93c9f88fa5b41c06af..0000000000000000000000000000000000000000
--- a/conversations/conv_035014.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.058787327500387,
-      "duration": 4.058787327500387,
-      "start_frame": 0,
-      "duration_frames": 64940,
-      "overlap": false,
-      "utterance_id": "6415-100596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-100596.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.833856203043201,
-      "end_time": 11.361933432716343,
-      "duration": 6.528077229673142,
-      "start_frame": 77341,
-      "duration_frames": 104449,
-      "overlap": false,
-      "utterance_id": "1222-141174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-141174.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.471689096497602,
-      "end_time": 15.678439434799117,
-      "duration": 4.2067503383015135,
-      "start_frame": 183547,
-      "duration_frames": 67308,
-      "overlap": false,
-      "utterance_id": "6415-111615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.13454138735494,
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-      "utterance_id": "6064-56165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-56165.flac |",
-      "real_speaker_id": "6064",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.69678830634541,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 67308
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.196450848673187,
-      "end_time": 32.0,
-      "duration": 1.8035491513268127,
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-      "utterance_id": "1222-133834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-      "duration": 1.2,
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 20.096994666442633,
-      "speaker_id": "6064"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6415/laugh/0041.wav",
-      "duration": 1.2383263486876355,
-      "start_time": 26.396663482759106,
-      "speaker_id": "6415"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1222/laugh/0007.wav",
-      "duration": 1.2840874771885429,
-      "start_time": 28.62911198965664,
-      "speaker_id": "1222"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035025.json b/conversations/conv_035025.json
deleted file mode 100644
index f34d15bec5f09c4bcb76a0229220546d3ed183c3..0000000000000000000000000000000000000000
--- a/conversations/conv_035025.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.49738655948243,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8631-283727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.544172708776932,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-75356.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.041391846523169,
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-      "utterance_id": "8631-283727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 81774
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.95910596688995,
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-      "duration_frames": 103581,
-      "overlap": false,
-      "utterance_id": "7189-74189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-74189.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.35572100190274,
-      "end_time": 28.780481233670475,
-      "duration": 4.424760231767734,
-      "start_frame": 389691,
-      "duration_frames": 70796,
-      "overlap": true,
-      "utterance_id": "8631-281208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-281208.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.303384081734222,
-      "end_time": 31.49738655948243,
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-      "duration_frames": 35104,
-      "overlap": true,
-      "utterance_id": "7189-74189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-74189.flac |",
-      "real_speaker_id": "7189",
-      "position_frames": 103581
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 0.8444469452548802,
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-      "speaker_id": "7189"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035029.json b/conversations/conv_035029.json
deleted file mode 100644
index e60ca4f41e25a23559a4e2807a89758a6dd62eda..0000000000000000000000000000000000000000
--- a/conversations/conv_035029.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.95870897486222,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.6560464654877913,
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-      "overlap": false,
-      "utterance_id": "1800-142858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7724023273479528,
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-      "overlap": true,
-      "utterance_id": "5781-52137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52137.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5781-52137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52137.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 91751
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.559300980713395,
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-      "utterance_id": "1800-142858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
-      "position_frames": 58496
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.13379416664481,
-      "end_time": 24.190062509902976,
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-      "duration_frames": 48900,
-      "overlap": true,
-      "utterance_id": "5781-52134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52134.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.306022456178233,
-      "end_time": 31.95870897486222,
-      "duration": 6.652686518683985,
-      "start_frame": 404896,
-      "duration_frames": 106442,
-      "overlap": false,
-      "utterance_id": "2050-164332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1800/laugh/0114.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5781/cough/0021.wav",
-      "duration": 0.8,
-      "start_time": 16.383569959283705,
-      "speaker_id": "5781"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035033.json b/conversations/conv_035033.json
deleted file mode 100644
index 956470f57670c67f924af5e63ef793ed34f975fc..0000000000000000000000000000000000000000
--- a/conversations/conv_035033.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.554329357345059,
-      "start_frame": 0,
-      "duration_frames": 104869,
-      "overlap": false,
-      "utterance_id": "7688-112187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-112187.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.699556041235234,
-      "end_time": 11.752367026517113,
-      "duration": 5.05281098528188,
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-      "duration_frames": 80844,
-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.817824114033405,
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-      "overlap": false,
-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.623371422608763,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 80844
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.81126528420234,
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-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.958865599272173,
-      "end_time": 32.0,
-      "duration": 4.041134400727827,
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-      "duration_frames": 64658,
-      "overlap": false,
-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 65888
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7688/laugh/0072.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-      "duration": 1.0,
-      "start_time": 30.211709600993473,
-      "speaker_id": "7552"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035043.json b/conversations/conv_035043.json
deleted file mode 100644
index ffa827f6cf7a69036fbed196a361ac3a0c9d21f8..0000000000000000000000000000000000000000
--- a/conversations/conv_035043.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.933151451870323,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8242-279771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279771.flac |",
-      "real_speaker_id": "8242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11550.flac |",
-      "real_speaker_id": "4160",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-212.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035044.json b/conversations/conv_035044.json
deleted file mode 100644
index d06af75f9eb815445bf52ec31016d8b29873f23c..0000000000000000000000000000000000000000
--- a/conversations/conv_035044.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_035048.json b/conversations/conv_035048.json
deleted file mode 100644
index 30f9ac024353af8c6924fdfe90d2db2d944c013d..0000000000000000000000000000000000000000
--- a/conversations/conv_035048.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_035052.json b/conversations/conv_035052.json
deleted file mode 100644
index be3b8d0b543ba78d987567c4d8ef7baa0ef9f3eb..0000000000000000000000000000000000000000
--- a/conversations/conv_035052.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_035055.json b/conversations/conv_035055.json
deleted file mode 100644
index 273cceb96da2938d65a9bf025b6c472cee40a699..0000000000000000000000000000000000000000
--- a/conversations/conv_035055.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.873537548224277,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 56983
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-}
\ No newline at end of file
diff --git a/conversations/conv_035064.json b/conversations/conv_035064.json
deleted file mode 100644
index 4c993793f0b200735c17031f76359857254e5612..0000000000000000000000000000000000000000
--- a/conversations/conv_035064.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142313.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-46588.flac |",
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-      "speaker_id": 1,
-      "start_time": 21.32373002068767,
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-      "real_speaker_id": "2592",
-      "position_frames": 77119
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-46588.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 72548
-    },
-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_035068.json b/conversations/conv_035068.json
deleted file mode 100644
index d5c3e5681800fa92cb461331b2983f7a64b51e73..0000000000000000000000000000000000000000
--- a/conversations/conv_035068.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295465.flac |",
-      "real_speaker_id": "8770",
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-      "real_speaker_id": "133",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "8770",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.662166277153815,
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-      "utterance_id": "133-143240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-143240.flac |",
-      "real_speaker_id": "133",
-      "position_frames": 110039
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-      "segment_id": "seg0005",
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-      "utterance_id": "6763-74797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74797.flac |",
-      "real_speaker_id": "6763",
-      "position_frames": 0
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-  "background_events": [
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035069.json b/conversations/conv_035069.json
deleted file mode 100644
index 5eb9fb54c7687af1251c9f5a56acc2d1cd5e3849..0000000000000000000000000000000000000000
--- a/conversations/conv_035069.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-    {
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-    {
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-      "real_speaker_id": "2341",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279239.flac |",
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_035072.json b/conversations/conv_035072.json
deleted file mode 100644
index 1cd16d1477feeb83b6a58061f94870276f08af60..0000000000000000000000000000000000000000
--- a/conversations/conv_035072.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_035086.json b/conversations/conv_035086.json
deleted file mode 100644
index 8ecda0a56bd9c15f4fd4cead40e8953ab5b21d74..0000000000000000000000000000000000000000
--- a/conversations/conv_035086.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
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-  "total_duration": 31.446224093716765,
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-  "overlap_rate": 0.0,
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_035087.json b/conversations/conv_035087.json
deleted file mode 100644
index 3b06e10e74719cd950c8ac6ac00a99c6adf41449..0000000000000000000000000000000000000000
--- a/conversations/conv_035087.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_035091.json b/conversations/conv_035091.json
deleted file mode 100644
index a1637eae101175f1c3019d865b900e87009d0a48..0000000000000000000000000000000000000000
--- a/conversations/conv_035091.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "duration": 1.2077777777777778,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/114/laugh/0059.wav",
-      "duration": 1.308182666796847,
-      "start_time": 0.9688983848711695,
-      "speaker_id": "114"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/114/laugh/0011.wav",
-      "duration": 1.36,
-      "start_time": 10.388303223369274,
-      "speaker_id": "114"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/114/laugh/0107.wav",
-      "duration": 1.28,
-      "start_time": 22.518946756503457,
-      "speaker_id": "114"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035101.json b/conversations/conv_035101.json
deleted file mode 100644
index 2d402d9abd8bac71bc6dc90e14d68a0b28d5373f..0000000000000000000000000000000000000000
--- a/conversations/conv_035101.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.051395425133062,
-      "duration": 6.051395425133062,
-      "start_frame": 0,
-      "duration_frames": 96822,
-      "overlap": false,
-      "utterance_id": "5652-39938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-39938.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.765955417506753,
-      "end_time": 8.91806665486439,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 9.787152621224912,
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-      "overlap": false,
-      "utterance_id": "5652-19215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-19215.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.964382308144163,
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-      "duration": 3.1489676588673183,
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-      "utterance_id": "2152-133043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-133043.flac |",
-      "real_speaker_id": "2152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.10821683221773,
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-      "duration": 4.165199300667561,
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-      "duration_frames": 66643,
-      "overlap": true,
-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 50433
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.96457764393123,
-      "end_time": 29.157621466313834,
-      "duration": 6.193043822382608,
-      "start_frame": 367433,
-      "duration_frames": 99088,
-      "overlap": false,
-      "utterance_id": "5652-19215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-19215.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 67857
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.71827382605419,
-      "end_time": 32.0,
-      "duration": 2.2817261739458097,
-      "start_frame": 475492,
-      "duration_frames": 36507,
-      "overlap": false,
-      "utterance_id": "1349-135892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 21.717188055054198,
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-      "event_class": "laugh",
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-      "duration": 0.5620531572088858,
-      "start_time": 31.437946842791114,
-      "speaker_id": "1349"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035106.json b/conversations/conv_035106.json
deleted file mode 100644
index 2b9ea52ac3203c0776504b35c8e74de6e2548bb0..0000000000000000000000000000000000000000
--- a/conversations/conv_035106.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.665915390114925,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.736873636534633,
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-      "overlap": false,
-      "utterance_id": "7188-104637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-104637.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.638635639184802,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187466.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.605451824136688,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178590.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.212955759838188,
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-      "duration": 4.65675378782632,
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-      "overlap": false,
-      "utterance_id": "711-187466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187466.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 69459
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.688746318666183,
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-      "overlap": false,
-      "utterance_id": "3744-178594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178594.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.66714015777738,
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-      "duration": 2.9987752323375467,
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-      "duration_frames": 47980,
-      "overlap": true,
-      "utterance_id": "7188-107627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
-      "duration": 0.6519047619047619,
-      "start_time": 2.4064076388411837
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/711/laugh/0133.wav",
-      "duration": 0.7800312098884208,
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-      "speaker_id": "711"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3744/laugh/0041.wav",
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-      "speaker_id": "3744"
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-    {
-      "event_class": "cough",
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-      "duration": 0.6167337464304878,
-      "start_time": 20.963271031004236,
-      "speaker_id": "3744"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7188/laugh/0071.wav",
-      "duration": 1.24,
-      "start_time": 27.269487229552617,
-      "speaker_id": "7188"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035110.json b/conversations/conv_035110.json
deleted file mode 100644
index 182a7cd155ee9f6bad3ef20068fc383bc37a1f42..0000000000000000000000000000000000000000
--- a/conversations/conv_035110.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "161-121897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121897.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.911539183273899,
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-      "utterance_id": "265-136853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-136853.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121898.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.699360500496873,
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-      "utterance_id": "265-122594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-122594.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.74079197652833,
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-      "utterance_id": "161-121743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121743.flac |",
-      "real_speaker_id": "161",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 0,
-      "speaker_id": "161"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/265/laugh/0012.wav",
-      "duration": 0.9489994139900004,
-      "start_time": 10.49670699374044,
-      "speaker_id": "265"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/265/cough/0000.wav",
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-      "start_time": 22.793976882793718,
-      "speaker_id": "265"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/161/laugh/0022.wav",
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-      "start_time": 22.19142896036718,
-      "speaker_id": "161"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035117.json b/conversations/conv_035117.json
deleted file mode 100644
index 608491dc609486afddc90d90f54fb343f5007898..0000000000000000000000000000000000000000
--- a/conversations/conv_035117.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.881735666428854,
-      "duration": 6.881735666428854,
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-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "5935",
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-    {
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-      "utterance_id": "3187-168500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168500.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5935",
-      "position_frames": 57735
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3187-168500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168500.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 66053
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "duration": 1.36,
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-      "event_class": "laugh",
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-      "start_time": 24.98310989780266,
-      "speaker_id": "5935"
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-}
\ No newline at end of file
diff --git a/conversations/conv_035120.json b/conversations/conv_035120.json
deleted file mode 100644
index 63a20d64efd9166ffe3e2278b83e90e854ce9396..0000000000000000000000000000000000000000
--- a/conversations/conv_035120.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5115-26950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26950.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8455808521608947,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-11081.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-87997.flac |",
-      "real_speaker_id": "6395",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26947.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.28876329365131,
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-      "utterance_id": "2588-160947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-160947.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.231976275065737,
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-      "utterance_id": "5115-26947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26947.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 57733
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.539666802509142,
-      "end_time": 32.0,
-      "duration": 1.4603331974908578,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-87997.flac |",
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-      "position_frames": 86829
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035121.json b/conversations/conv_035121.json
deleted file mode 100644
index ad6b9924fb9170c3337c659c3cffe75685487fba..0000000000000000000000000000000000000000
--- a/conversations/conv_035121.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6660-103647",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-103647.flac |",
-      "real_speaker_id": "6660",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122743.flac |",
-      "real_speaker_id": "432",
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-      "real_speaker_id": "6248",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "432-122761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122761.flac |",
-      "real_speaker_id": "432",
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "6248-302581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-302581.flac |",
-      "real_speaker_id": "6248",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.28688243218315,
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-      "duration": 1.7131175678168518,
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-      "overlap": false,
-      "utterance_id": "6660-97655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-97655.flac |",
-      "real_speaker_id": "6660",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "6660"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/432/laugh/0036.wav",
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-      "start_time": 10.570819490016794,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/432/cough/0027.wav",
-      "duration": 0.84,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/432/laugh/0008.wav",
-      "duration": 1.12,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "432"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035137.json b/conversations/conv_035137.json
deleted file mode 100644
index 3dbfdb273b699e5e37a26a3c4cc86309b55b4ae7..0000000000000000000000000000000000000000
--- a/conversations/conv_035137.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "123-25083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-25083.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.522549221427994,
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-      "real_speaker_id": "724",
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-      "segment_id": "seg0002",
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-      "utterance_id": "8208-256238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "724",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "724-123284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123284.flac |",
-      "real_speaker_id": "724",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
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-    {
-      "event_class": "Dishes",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/123/laugh/0005.wav",
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-      "duration": 1.2,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035140.json b/conversations/conv_035140.json
deleted file mode 100644
index 2a982adc4a4c0f9932a7371d048da3bfd6b7b70b..0000000000000000000000000000000000000000
--- a/conversations/conv_035140.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.40246534248157,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.9151015682493515,
-      "duration": 3.9151015682493515,
-      "start_frame": 0,
-      "duration_frames": 62641,
-      "overlap": false,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.059932020459826,
-      "end_time": 11.53104473493786,
-      "duration": 6.471112714478034,
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-      "overlap": false,
-      "utterance_id": "6126-10992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6126-10992.flac |",
-      "real_speaker_id": "6126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.250684047905334,
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-      "duration": 4.151791646450247,
-      "start_frame": 196010,
-      "duration_frames": 66428,
-      "overlap": false,
-      "utterance_id": "6918-47541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.194193187204917,
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-      "utterance_id": "6918-47541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 66428
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.99599183800942,
-      "end_time": 26.883530368251012,
-      "duration": 3.887538530241591,
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-      "duration_frames": 62200,
-      "overlap": false,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 62641
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.682738197259276,
-      "end_time": 31.40246534248157,
-      "duration": 3.7197271452222918,
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 124841
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
-      "duration": 3.7922522912648953,
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6918/laugh/0049.wav",
-      "duration": 1.8887428457438604,
-      "start_time": 16.47514110327266,
-      "speaker_id": "6918"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/laugh/0026.wav",
-      "duration": 0.733821328718131,
-      "start_time": 26.661848125186154,
-      "speaker_id": "4428"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/cough/0052.wav",
-      "duration": 0.5966351171342579,
-      "start_time": 27.003683326066067,
-      "speaker_id": "4428"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035147.json b/conversations/conv_035147.json
deleted file mode 100644
index 1d67586c9af533bfeee2722f2cc62593da8aa6e9..0000000000000000000000000000000000000000
--- a/conversations/conv_035147.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.039459648949673,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.218273065370086,
-      "duration": 5.218273065370086,
-      "start_frame": 0,
-      "duration_frames": 83492,
-      "overlap": false,
-      "utterance_id": "559-126296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-126296.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.74749881483181,
-      "end_time": 10.682274663984957,
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-      "overlap": false,
-      "utterance_id": "6713-56749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 95458,
-      "overlap": true,
-      "utterance_id": "559-289453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-289453.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.616976391764574,
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-      "utterance_id": "6713-56749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 62956
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.796506342703303,
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-      "overlap": false,
-      "utterance_id": "559-126296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-126296.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 83492
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.837950834862486,
-      "end_time": 31.039459648949673,
-      "duration": 4.201508814087186,
-      "start_frame": 429407,
-      "duration_frames": 67224,
-      "overlap": false,
-      "utterance_id": "6713-56749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 130282
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "duration": 1.16,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6713"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.02,
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-      "speaker_id": "6713"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035151.json b/conversations/conv_035151.json
deleted file mode 100644
index 64f578e6769f91ddefbb5be4288187d8ce2a934f..0000000000000000000000000000000000000000
--- a/conversations/conv_035151.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3368-170950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170950.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.547113853746157,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-156738.flac |",
-      "real_speaker_id": "2481",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170952.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "2481-163597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-163597.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.317838244000484,
-      "end_time": 32.0,
-      "duration": 5.682161755999516,
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-      "overlap": false,
-      "utterance_id": "3368-170951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170951.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3368/laugh/0123.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035156.json b/conversations/conv_035156.json
deleted file mode 100644
index 2e0e2726ffa9404d8eeb193f97829611c48e0a3d..0000000000000000000000000000000000000000
--- a/conversations/conv_035156.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.286136507518654,
-      "duration": 4.286136507518654,
-      "start_frame": 0,
-      "duration_frames": 68578,
-      "overlap": false,
-      "utterance_id": "5424-291181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-291181.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
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-    {
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8401/cough/0029.wav",
-      "duration": 0.6101197986345659,
-      "start_time": 20.230296513695322,
-      "speaker_id": "8401"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5424/laugh/0003.wav",
-      "duration": 0.5342503679198515,
-      "start_time": 31.465749632080147,
-      "speaker_id": "5424"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5424/cough/0148.wav",
-      "duration": 0.519369046274246,
-      "start_time": 31.480630953725754,
-      "speaker_id": "5424"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035160.json b/conversations/conv_035160.json
deleted file mode 100644
index eb936c7f6aec20e6ed6ea442df00635e745c6cfa..0000000000000000000000000000000000000000
--- a/conversations/conv_035160.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.1568562231311668,
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-      "duration_frames": 50509,
-      "overlap": false,
-      "utterance_id": "1690-142293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.331156832573427,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 9.289308366151852,
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-      "duration_frames": 111002,
-      "overlap": false,
-      "utterance_id": "62-121084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 71339
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.90028906914431,
-      "end_time": 21.67996544601471,
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-      "overlap": false,
-      "utterance_id": "7026-86943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86943.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.661357010424112,
-      "end_time": 28.35106564887708,
-      "duration": 5.689708638452967,
-      "start_frame": 362581,
-      "duration_frames": 91035,
-      "overlap": false,
-      "utterance_id": "62-121084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 182341
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.790475413935496,
-      "end_time": 32.0,
-      "duration": 3.2095245860645036,
-      "start_frame": 460647,
-      "duration_frames": 51352,
-      "overlap": false,
-      "utterance_id": "1690-142293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 50509
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 24.486356570152367,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
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-      "start_time": 27.909333815959595
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 4.774933234811941,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1690/laugh/0117.wav",
-      "duration": 1.56,
-      "start_time": 0,
-      "speaker_id": "1690"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1690/cough/0111.wav",
-      "duration": 0.84,
-      "start_time": 0.17066880614024169,
-      "speaker_id": "1690"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035176.json b/conversations/conv_035176.json
deleted file mode 100644
index 72fcef17e432a7e6fb2a1493343c8d1394290087..0000000000000000000000000000000000000000
--- a/conversations/conv_035176.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.313479023150125,
-      "duration": 6.313479023150125,
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-      "overlap": false,
-      "utterance_id": "2416-152137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.716368029063829,
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-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.115301761734685,
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-      "utterance_id": "2416-152137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 101015
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.498655915592607,
-      "end_time": 32.0,
-      "duration": 5.501344084407393,
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-      "utterance_id": "2416-152139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
-      "duration": 2.711212933703918,
-      "start_time": 5.070773973199186
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
-      "duration": 0.35356009070294786,
-      "start_time": 7.1884227684652835
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2416/laugh/0059.wav",
-      "duration": 1.8258522676062445,
-      "start_time": 30.174147732393756,
-      "speaker_id": "2416"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035183.json b/conversations/conv_035183.json
deleted file mode 100644
index 58eabaddfda5e6ff5f802c34b572aade8cfb4218..0000000000000000000000000000000000000000
--- a/conversations/conv_035183.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.602094277433803,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.85626952083734,
-      "duration": 4.85626952083734,
-      "start_frame": 0,
-      "duration_frames": 77700,
-      "overlap": false,
-      "utterance_id": "2952-407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-407.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.1611714398440505,
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-      "utterance_id": "6324-64063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.050484080957073,
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-      "duration_frames": 111451,
-      "overlap": false,
-      "utterance_id": "2952-410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-410.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.585424229012066,
-      "end_time": 21.37805402023738,
-      "duration": 4.792629791225314,
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-      "duration_frames": 76682,
-      "overlap": false,
-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.761970288665836,
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-      "utterance_id": "6324-64062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.553200845662445,
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-      "duration_frames": 64782,
-      "overlap": true,
-      "utterance_id": "2952-410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-410.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 111451
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6324/laugh/0005.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035194.json b/conversations/conv_035194.json
deleted file mode 100644
index 4bcf0226b64e5a17a53603f82a5bff4178acd231..0000000000000000000000000000000000000000
--- a/conversations/conv_035194.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7065-74573",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74573.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.7974313489747273,
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-      "utterance_id": "4434-73957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73957.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "119-121722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-121722.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.785537682884378,
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-      "duration_frames": 79240,
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-      "utterance_id": "7065-74597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74597.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.223145263205172,
-      "end_time": 24.35648594021993,
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-      "overlap": false,
-      "utterance_id": "4434-73958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73958.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.70032378108028,
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-      "utterance_id": "7065-74573",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74573.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 50422
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.415945902734475,
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-      "utterance_id": "119-129514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129514.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_035195.json b/conversations/conv_035195.json
deleted file mode 100644
index fb5d6dd04d3301d33a35364feaa78307321102f1..0000000000000000000000000000000000000000
--- a/conversations/conv_035195.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.323543829510463,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "2748-160985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
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-      "real_speaker_id": "614",
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-      "real_speaker_id": "614",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1705/cough/0049.wav",
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-      "duration": 0.92,
-      "start_time": 12.322201915837907,
-      "speaker_id": "614"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/614/laugh/0010.wav",
-      "duration": 0.6380310018946656,
-      "start_time": 24.20508291217887,
-      "speaker_id": "614"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/614/laugh/0011.wav",
-      "duration": 0.6512563080372187,
-      "start_time": 24.692505452362212,
-      "speaker_id": "614"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035199.json b/conversations/conv_035199.json
deleted file mode 100644
index b1fccd8cbd1b43ac4d2bef0d90cac5c2a5674a7d..0000000000000000000000000000000000000000
--- a/conversations/conv_035199.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6513-71946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71946.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.6474453417833645,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-245691.flac |",
-      "real_speaker_id": "7982",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "6513-71944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71944.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 17.48024270684847,
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-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.563064112030183,
-      "end_time": 28.216163234960824,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-245691.flac |",
-      "real_speaker_id": "7982",
-      "position_frames": 82374
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7982-110054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-110054.flac |",
-      "real_speaker_id": "7982",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_035204.json b/conversations/conv_035204.json
deleted file mode 100644
index 8665aac70e481fa355dd760860691abab33ed39c..0000000000000000000000000000000000000000
--- a/conversations/conv_035204.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.48447183390823,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 93875
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "7402-59171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-59171.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57154.flac |",
-      "real_speaker_id": "6075",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 21873,
-      "overlap": true,
-      "utterance_id": "7402-59171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-59171.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 67400
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_035205.json b/conversations/conv_035205.json
deleted file mode 100644
index 3a89b6f7dafa2566d307e70ba98e6108c3361ef5..0000000000000000000000000000000000000000
--- a/conversations/conv_035205.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1492-11251",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-11251.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "duration": 4.012502724546033,
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-      "duration_frames": 64200,
-      "overlap": true,
-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 78201
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.068071451140561,
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-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 83165
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1492-11251",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-11251.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 75900
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.551606923389055,
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-      "duration": 0.4483930766109445,
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-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 142401
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035208.json b/conversations/conv_035208.json
deleted file mode 100644
index 81fe2948fe63334f60ef416ecaf56616a06cc55b..0000000000000000000000000000000000000000
--- a/conversations/conv_035208.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2393-144496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2393-144496.flac |",
-      "real_speaker_id": "2393",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.57483362466788,
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-      "segment_id": "seg0002",
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-      "start_time": 11.393684316685487,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155891.flac |",
-      "real_speaker_id": "1331",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155892.flac |",
-      "real_speaker_id": "1331",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.026439578704874,
-      "end_time": 28.90130438688078,
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-      "utterance_id": "1331-155891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155891.flac |",
-      "real_speaker_id": "1331",
-      "position_frames": 105382
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.367133099399723,
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-      "duration": 2.632866900600277,
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-      "utterance_id": "2393-144496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2393-144496.flac |",
-      "real_speaker_id": "2393",
-      "position_frames": 78888
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1331/cough/0097.wav",
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-      "speaker_id": "1331"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1331/laugh/0128.wav",
-      "duration": 1.64,
-      "start_time": 25.91253216985732,
-      "speaker_id": "1331"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1331/cough/0024.wav",
-      "duration": 0.5245253251454913,
-      "start_time": 28.90566448578902,
-      "speaker_id": "1331"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035212.json b/conversations/conv_035212.json
deleted file mode 100644
index 8e3288e69fdc19e3fed7e53224d5bce392444cc5..0000000000000000000000000000000000000000
--- a/conversations/conv_035212.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.946496236826843,
-      "duration": 3.946496236826843,
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-      "overlap": false,
-      "utterance_id": "5133-80690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.5449414586614045,
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-      "duration": 4.290710981677341,
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-      "duration_frames": 68651,
-      "overlap": false,
-      "utterance_id": "1748-1560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1560.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.838189025945628,
-      "end_time": 15.7156265173242,
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-      "overlap": false,
-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.416169829792903,
-      "end_time": 19.509356231349198,
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-      "overlap": false,
-      "utterance_id": "1748-1562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1562.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.452634021321575,
-      "end_time": 24.59739520357726,
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-      "overlap": false,
-      "utterance_id": "1748-1560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1560.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 68651
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.264358734999462,
-      "end_time": 30.079714754452375,
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-      "start_frame": 404229,
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-      "utterance_id": "5133-80690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 63143
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.859726251721227,
-      "end_time": 32.0,
-      "duration": 1.1402737482787728,
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-      "utterance_id": "1748-1562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1562.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 49490
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "5133"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1748/cough/0071.wav",
-      "duration": 0.6849398428565616,
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-      "duration": 0.620064585320955,
-      "start_time": 19.6202588988305,
-      "speaker_id": "1748"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035215.json b/conversations/conv_035215.json
deleted file mode 100644
index c4fe3d09373d3e0783a66a650494a850bf685769..0000000000000000000000000000000000000000
--- a/conversations/conv_035215.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.62505733610216,
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-      "duration_frames": 90000,
-      "overlap": false,
-      "utterance_id": "8057-296395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-296395.flac |",
-      "real_speaker_id": "8057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2694-28891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28891.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "start_frame": 206060,
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-      "overlap": true,
-      "utterance_id": "8057-296395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-296395.flac |",
-      "real_speaker_id": "8057",
-      "position_frames": 90000
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.346418837395355,
-      "end_time": 23.223460750540628,
-      "duration": 5.8770419131452725,
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-      "duration_frames": 94032,
-      "overlap": true,
-      "utterance_id": "6575-67592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.0954183211458,
-      "end_time": 29.926868507654106,
-      "duration": 5.831450186508304,
-      "start_frame": 385526,
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-      "overlap": false,
-      "utterance_id": "6575-67584",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67584.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.02777680727554,
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-      "duration": 1.97222319272446,
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-      "duration_frames": 31555,
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-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-      "start_time": 3.593692892579829
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6575/cough/0075.wav",
-      "duration": 1.0,
-      "start_time": 29.945581857284026,
-      "speaker_id": "6575"
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-}
\ No newline at end of file
diff --git a/conversations/conv_035224.json b/conversations/conv_035224.json
deleted file mode 100644
index 64e739c1882391bc68a1e968c3dcb56d98ad8307..0000000000000000000000000000000000000000
--- a/conversations/conv_035224.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.546954755418437,
-      "duration": 4.546954755418437,
-      "start_frame": 0,
-      "duration_frames": 72751,
-      "overlap": false,
-      "utterance_id": "1053-289242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-289242.flac |",
-      "real_speaker_id": "1053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.249041645194678,
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-      "duration": 5.738267820017264,
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-      "duration_frames": 91812,
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-      "utterance_id": "8396-240992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-240992.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.950623637053853,
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-      "duration": 6.363573664044575,
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-      "duration_frames": 101817,
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-      "utterance_id": "1053-289242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-289242.flac |",
-      "real_speaker_id": "1053",
-      "position_frames": 72751
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.71773740577787,
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-      "utterance_id": "4993-40688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4993-40688.flac |",
-      "real_speaker_id": "4993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.6036603389782,
-      "end_time": 29.300647614995288,
-      "duration": 4.696987276017087,
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-      "overlap": false,
-      "utterance_id": "4993-40688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4993-40688.flac |",
-      "real_speaker_id": "4993",
-      "position_frames": 89849
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.159096860212145,
-      "end_time": 32.0,
-      "duration": 1.840903139787855,
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-      "duration_frames": 29454,
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-      "utterance_id": "1053-132850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-132850.flac |",
-      "real_speaker_id": "1053",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_0.wav",
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-      "start_time": 24.20334549327582
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1053/laugh/0009.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1053/cough/0072.wav",
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-      "start_time": 29.708026280767402,
-      "speaker_id": "1053"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035228.json b/conversations/conv_035228.json
deleted file mode 100644
index 404eb754dee0042591203d1f1d7a11829f2595bc..0000000000000000000000000000000000000000
--- a/conversations/conv_035228.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.259330793176293,
-      "duration": 4.259330793176293,
-      "start_frame": 0,
-      "duration_frames": 68149,
-      "overlap": false,
-      "utterance_id": "348-128030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-128030.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_035232.json b/conversations/conv_035232.json
deleted file mode 100644
index 874aff314ac9d707f4be400179f2d4cfd3702d46..0000000000000000000000000000000000000000
--- a/conversations/conv_035232.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-134717.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-126480.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 14.591429792923778,
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-      "utterance_id": "479-126480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/479-126480.flac |",
-      "real_speaker_id": "479",
-      "position_frames": 84954
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.28745917978766,
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-      "utterance_id": "1414-130538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
-      "real_speaker_id": "1414",
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-      "speaker_id": 2,
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-      "real_speaker_id": "5979",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.473153433494563,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_035239.json b/conversations/conv_035239.json
deleted file mode 100644
index f8f6b38a81cf578cdd77f7aa740e9b3627f10770..0000000000000000000000000000000000000000
--- a/conversations/conv_035239.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.682241395294117,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85172.flac |",
-      "real_speaker_id": "6943",
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-      "real_speaker_id": "845",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "2673",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.770452833604246,
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-      "duration_frames": 87288,
-      "overlap": false,
-      "utterance_id": "6943-85168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85168.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85172.flac |",
-      "real_speaker_id": "6943",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035245.json b/conversations/conv_035245.json
deleted file mode 100644
index fdbd419d7da5374fbb0c4f600ec91444653799ff..0000000000000000000000000000000000000000
--- a/conversations/conv_035245.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "815-130105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130105.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.556848118804616,
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-      "utterance_id": "118-124588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-124588.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
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-      "utterance_id": "5325-50109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
-      "real_speaker_id": "5325",
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-    {
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-36587.flac |",
-      "real_speaker_id": "5325",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_035249.json b/conversations/conv_035249.json
deleted file mode 100644
index 74b373d5fd2a4345ab0410ca26032a5badeba5b3..0000000000000000000000000000000000000000
--- a/conversations/conv_035249.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "98-121658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-121658.flac |",
-      "real_speaker_id": "98",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 9.315001845396331,
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-      "utterance_id": "98-199",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-199.flac |",
-      "real_speaker_id": "98",
-      "position_frames": 0
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-      "start_time": 14.862660862904914,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-121658.flac |",
-      "real_speaker_id": "98",
-      "position_frames": 56328
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-173247.flac |",
-      "real_speaker_id": "3319",
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-121658.flac |",
-      "real_speaker_id": "98",
-      "position_frames": 142257
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/953/laugh/0050.wav",
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-      "duration": 0.92,
-      "start_time": 13.828866507321116,
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_035253.json b/conversations/conv_035253.json
deleted file mode 100644
index 85055ba6b08c8d48f6c8e8b0885b9ec25f8cc8a4..0000000000000000000000000000000000000000
--- a/conversations/conv_035253.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.848117119007647,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "829-123192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/829-123192.flac |",
-      "real_speaker_id": "829",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-283234.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.746663953365873,
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-      "utterance_id": "8240-116288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-116288.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.992374375089582,
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-      "overlap": false,
-      "utterance_id": "829-123190",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/829-123190.flac |",
-      "real_speaker_id": "829",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-116288.flac |",
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-  "background_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035265.json b/conversations/conv_035265.json
deleted file mode 100644
index 0660746fcb07a617c1bc690f73ccb85b0b8545ad..0000000000000000000000000000000000000000
--- a/conversations/conv_035265.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.45425296033307,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3665-8589.flac |",
-      "real_speaker_id": "3665",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 50042
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "3665-8589",
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-      "position_frames": 103682
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035269.json b/conversations/conv_035269.json
deleted file mode 100644
index cbf22bab033f94fda74d7ba1d85757140676d3c5..0000000000000000000000000000000000000000
--- a/conversations/conv_035269.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1545-160887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-160887.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.534248054894749,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1545-161007",
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-    {
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "start_time": 28.71084728862152,
-      "speaker_id": "1545"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035273.json b/conversations/conv_035273.json
deleted file mode 100644
index 44dfed93e5bf6da66735106cb784bd6047f6226b..0000000000000000000000000000000000000000
--- a/conversations/conv_035273.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.776380244104047,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.946054837803082,
-      "duration": 3.946054837803082,
-      "start_frame": 0,
-      "duration_frames": 63136,
-      "overlap": false,
-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.664065756033454,
-      "end_time": 11.374626076308028,
-      "duration": 6.710560320274573,
-      "start_frame": 74625,
-      "duration_frames": 107368,
-      "overlap": false,
-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 63136
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.770777606247275,
-      "end_time": 15.581514290660749,
-      "duration": 3.810736684413473,
-      "start_frame": 188332,
-      "duration_frames": 60971,
-      "overlap": false,
-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 170504
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.821052659279351,
-      "end_time": 19.715993021946943,
-      "duration": 3.894940362667593,
-      "start_frame": 253136,
-      "duration_frames": 62319,
-      "overlap": false,
-      "utterance_id": "5665-38052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5665-38052.flac |",
-      "real_speaker_id": "5665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.07295116473928,
-      "end_time": 22.776020156875337,
-      "duration": 3.703068992136056,
-      "start_frame": 305167,
-      "duration_frames": 59249,
-      "overlap": true,
-      "utterance_id": "4742-41609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.394659406452107,
-      "end_time": 30.776380244104047,
-      "duration": 6.38172083765194,
-      "start_frame": 390314,
-      "duration_frames": 102107,
-      "overlap": false,
-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 231475
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 2.247641723356009,
-      "start_time": 0.14544947177129397
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5429/cough/0057.wav",
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-      "speaker_id": "5429"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5429/cough/0001.wav",
-      "duration": 1.3024919277698326,
-      "start_time": 11.442841617233888,
-      "speaker_id": "5429"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5665/laugh/0028.wav",
-      "duration": 0.5099277825170316,
-      "start_time": 16.346308251740318,
-      "speaker_id": "5665"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5429/laugh/0013.wav",
-      "duration": 1.68,
-      "start_time": 25.889519179947083,
-      "speaker_id": "5429"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5429/cough/0076.wav",
-      "duration": 1.4186253098046695,
-      "start_time": 22.82765786451765,
-      "speaker_id": "5429"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035278.json b/conversations/conv_035278.json
deleted file mode 100644
index de2d70f8f5cbde84dc72b94367f76e48c2e262ef..0000000000000000000000000000000000000000
--- a/conversations/conv_035278.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.636009256881376,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.474420276449321,
-      "duration": 4.474420276449321,
-      "start_frame": 0,
-      "duration_frames": 71590,
-      "overlap": false,
-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.065716759287408,
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-      "utterance_id": "6937-112761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-112761.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.209771360896738,
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-      "overlap": false,
-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.323966614437282,
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-      "start_frame": 245183,
-      "duration_frames": 67551,
-      "overlap": false,
-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 71590
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.289022689264208,
-      "end_time": 25.692820384380337,
-      "duration": 5.403797695116129,
-      "start_frame": 324624,
-      "duration_frames": 86460,
-      "overlap": true,
-      "utterance_id": "6937-112761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-112761.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 69285
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.824303339951935,
-      "end_time": 31.636009256881376,
-      "duration": 5.811705916929441,
-      "start_frame": 413188,
-      "duration_frames": 92987,
-      "overlap": true,
-      "utterance_id": "1571-141320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-141320.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
-      "start_time": 0.4696156933821646
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
-      "start_time": 5.9119572793161925
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1250/cough/0044.wav",
-      "duration": 0.9375599169654085,
-      "start_time": 14.31149434861099,
-      "speaker_id": "1250"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6937/laugh/0070.wav",
-      "duration": 1.36,
-      "start_time": 20.971371627992813,
-      "speaker_id": "6937"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035281.json b/conversations/conv_035281.json
deleted file mode 100644
index c35f4a60e1da3ac90810a75cdd3da7c151f806bc..0000000000000000000000000000000000000000
--- a/conversations/conv_035281.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "246-224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-224.flac |",
-      "real_speaker_id": "246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.010001220955948,
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-      "overlap": false,
-      "utterance_id": "1806-143946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143946.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.33290059075278,
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-      "utterance_id": "2195-150901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150901.flac |",
-      "real_speaker_id": "2195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 13.236962850827526,
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-      "utterance_id": "246-122825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-122825.flac |",
-      "real_speaker_id": "246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.057972964577313,
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-      "utterance_id": "1806-2536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-2536.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.233113901516344,
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-      "duration": 3.3395444428159275,
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-      "duration_frames": 53432,
-      "overlap": false,
-      "utterance_id": "246-122825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-122825.flac |",
-      "real_speaker_id": "246",
-      "position_frames": 89687
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 26.89424077159869,
-      "end_time": 32.0,
-      "duration": 5.105759228401311,
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-      "overlap": false,
-      "utterance_id": "2195-150894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150894.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_6.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2195/cough/0032.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/246/cough/0073.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1806/cough/0089.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/246/laugh/0009.wav",
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-      "start_time": 26.696600780457626,
-      "speaker_id": "246"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035286.json b/conversations/conv_035286.json
deleted file mode 100644
index 3dcccf8df6537112add4e205ce14a8aea90c404f..0000000000000000000000000000000000000000
--- a/conversations/conv_035286.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.558275830925878,
-      "duration": 4.558275830925878,
-      "start_frame": 0,
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-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.28644871861077,
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-      "overlap": true,
-      "utterance_id": "7739-107483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-107483.flac |",
-      "real_speaker_id": "7739",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 152875
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.58152928740813,
-      "end_time": 32.0,
-      "duration": 1.4184707125918692,
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-      "duration_frames": 22695,
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-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 167205
-    }
-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7809/laugh/0053.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.32399043349855355,
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-      "speaker_id": "7809"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2068/laugh/0066.wav",
-      "duration": 1.38,
-      "start_time": 30.62,
-      "speaker_id": "2068"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035290.json b/conversations/conv_035290.json
deleted file mode 100644
index fbb8d2fe08ad57ea3789f86bd008be833b64392a..0000000000000000000000000000000000000000
--- a/conversations/conv_035290.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.641184683208242,
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-      "utterance_id": "5545-66398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-66398.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.501820670621867,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-119295.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8468-295198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8468-295198.flac |",
-      "real_speaker_id": "8468",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.921127437042703,
-      "end_time": 22.726422246355895,
-      "duration": 5.805294809313192,
-      "start_frame": 270738,
-      "duration_frames": 92884,
-      "overlap": false,
-      "utterance_id": "5545-66419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-66419.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.053119706882327,
-      "end_time": 28.99459904686325,
-      "duration": 5.941479339980924,
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-      "overlap": false,
-      "utterance_id": "3157-168062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-168062.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.88537755632285,
-      "end_time": 32.0,
-      "duration": 2.114622443677149,
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-      "duration_frames": 33833,
-      "overlap": false,
-      "utterance_id": "8468-294887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8468-294887.flac |",
-      "real_speaker_id": "8468",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8468/laugh/0092.wav",
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-      "duration": 1.1276416587902032,
-      "start_time": 28.654164806225886,
-      "speaker_id": "8468"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035297.json b/conversations/conv_035297.json
deleted file mode 100644
index 92623b2bb7d619f13b746932fc9bee74d9cf1e9a..0000000000000000000000000000000000000000
--- a/conversations/conv_035297.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.240960814621108,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3979-10702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10702.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.911161185039292,
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-      "utterance_id": "489-75909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75909.flac |",
-      "real_speaker_id": "489",
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-      "overlap": false,
-      "utterance_id": "3598-173222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3598-173222.flac |",
-      "real_speaker_id": "3598",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.228030768718497,
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-      "utterance_id": "3979-10701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.11402974320597,
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-      "start_frame": 401824,
-      "duration_frames": 98030,
-      "overlap": false,
-      "utterance_id": "3598-180204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3598-180204.flac |",
-      "real_speaker_id": "3598",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/489/laugh/0130.wav",
-      "duration": 0.78,
-      "start_time": 3.8558970375340733,
-      "speaker_id": "489"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/489/cough/0049.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "3598"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035300.json b/conversations/conv_035300.json
deleted file mode 100644
index d811cad7ac690360bbc381cff34a5ed31333db15..0000000000000000000000000000000000000000
--- a/conversations/conv_035300.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.14851671305482,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.305328528776582,
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-      "overlap": false,
-      "utterance_id": "1691-142296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 91577
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.009326984318712,
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-      "utterance_id": "1691-142296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 56243
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 160785
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.236090796816523,
-      "end_time": 31.14851671305482,
-      "duration": 5.912425916238298,
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-      "duration_frames": 94598,
-      "overlap": true,
-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2774/laugh/0041.wav",
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1691/cough/0054.wav",
-      "duration": 1.16,
-      "start_time": 16.45549135779828,
-      "speaker_id": "1691"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035316.json b/conversations/conv_035316.json
deleted file mode 100644
index 215beadb32c362d6158be022a40908466b0b4945..0000000000000000000000000000000000000000
--- a/conversations/conv_035316.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.439637762418847,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.185379681708135,
-      "duration": 3.185379681708135,
-      "start_frame": 0,
-      "duration_frames": 50966,
-      "overlap": false,
-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9232456914900133,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
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-      "utterance_id": "4039-184265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184265.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 19.50826532957616,
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-  ],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
-      "duration": 0.6760544217687074,
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/884/laugh/0000.wav",
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-      "speaker_id": "884"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4039/laugh/0064.wav",
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-      "speaker_id": "4039"
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-      "duration": 1.28,
-      "start_time": 15.872744352051354,
-      "speaker_id": "1187"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/884/cough/0007.wav",
-      "duration": 0.49479041681876423,
-      "start_time": 23.311609004709428,
-      "speaker_id": "884"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4039/laugh/0013.wav",
-      "duration": 0.8100861331202643,
-      "start_time": 28.968850184190643,
-      "speaker_id": "4039"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035320.json b/conversations/conv_035320.json
deleted file mode 100644
index e6b97bc39e80590924d5ab61f9d74eb2e266c0b1..0000000000000000000000000000000000000000
--- a/conversations/conv_035320.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0920383514146494,
-      "duration": 3.0920383514146494,
-      "start_frame": 0,
-      "duration_frames": 49472,
-      "overlap": false,
-      "utterance_id": "2712-3536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.9526972053323126,
-      "end_time": 7.017561924444395,
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-      "utterance_id": "8307-120456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120456.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.222759293666167,
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-      "utterance_id": "1280-143268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-143268.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120456.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 49037
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1280-135136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "2712-3534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3534.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.268017060494365,
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-      "utterance_id": "8307-120458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120458.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
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-    {
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-  "paralinguistic_events": [
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-      "duration": 1.44,
-      "start_time": 7.157490158339459,
-      "speaker_id": "8307"
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-      "speaker_id": "1280"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035336.json b/conversations/conv_035336.json
deleted file mode 100644
index 9d3ee49523c4968241510e77d5a75817df112da1..0000000000000000000000000000000000000000
--- a/conversations/conv_035336.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4156-12351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12351.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.836420584001405,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74796.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
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-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 16.663480281938604,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 102121
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.074663765375497,
-      "end_time": 32.0,
-      "duration": 1.9253362346245027,
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-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 62225
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4156/laugh/0051.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4156/cough/0135.wav",
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-      "speaker_id": "4156"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035340.json b/conversations/conv_035340.json
deleted file mode 100644
index 9c52ccbee1fde3b12772670db47d10e720c655e8..0000000000000000000000000000000000000000
--- a/conversations/conv_035340.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 89053,
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-      "utterance_id": "2598-4654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4654.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.8035919179393405,
-      "end_time": 12.202922456412217,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-33409.flac |",
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-    {
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-      "duration_frames": 74677,
-      "overlap": false,
-      "utterance_id": "4438-48525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4438-48525.flac |",
-      "real_speaker_id": "4438",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.195594363319827,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4654.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 89053
-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4438-48525",
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-      "position_frames": 74677
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
-      "duration": 0.31396825396825395,
-      "start_time": 7.522141349079098
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2598/laugh/0061.wav",
-      "duration": 0.5488698382662893,
-      "start_time": 16.561411277859502,
-      "speaker_id": "2598"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035341.json b/conversations/conv_035341.json
deleted file mode 100644
index 93b12b9d9bb9dc38580360504efa00ccb31e41a5..0000000000000000000000000000000000000000
--- a/conversations/conv_035341.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.351815982294674,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.546086123568738,
-      "duration": 4.546086123568738,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "637-127595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.8825809630088495,
-      "end_time": 9.719687770715804,
-      "duration": 4.837106807706954,
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-      "overlap": false,
-      "utterance_id": "8465-246942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246942.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.102727961042945,
-      "end_time": 16.029388343859388,
-      "duration": 5.926660382816443,
-      "start_frame": 161643,
-      "duration_frames": 94826,
-      "overlap": false,
-      "utterance_id": "637-127579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127579.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.83272675465853,
-      "end_time": 23.61535928803479,
-      "duration": 6.78263253337626,
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-      "duration_frames": 108522,
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-      "utterance_id": "4705-16048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-16048.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.20035170190833,
-      "end_time": 27.650399409806198,
-      "duration": 3.4500477078978715,
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-      "duration_frames": 55200,
-      "overlap": false,
-      "utterance_id": "8465-246942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246942.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 77393
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.626738206781592,
-      "end_time": 31.351815982294674,
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-      "duration_frames": 59601,
-      "overlap": true,
-      "utterance_id": "4705-94467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94467.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
-      "duration": 0.205578231292517,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/637/cough/0105.wav",
-      "duration": 1.24,
-      "start_time": 12.259530860238433,
-      "speaker_id": "637"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8465/cough/0004.wav",
-      "duration": 0.5995885955651448,
-      "start_time": 27.714986452192534,
-      "speaker_id": "8465"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4705/laugh/0016.wav",
-      "duration": 0.6790929564317945,
-      "start_time": 26.820304276387983,
-      "speaker_id": "4705"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035350.json b/conversations/conv_035350.json
deleted file mode 100644
index 9f6e4e442c97ba1e2c71ca4ae84331149cfd3d4d..0000000000000000000000000000000000000000
--- a/conversations/conv_035350.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.445029327296044,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.605902418580032,
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-      "start_frame": 0,
-      "duration_frames": 105694,
-      "overlap": false,
-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.305059348065909,
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-      "utterance_id": "850-131003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131003.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.898271059458555,
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-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 105694
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.812441131279286,
-      "end_time": 22.070848214243146,
-      "duration": 3.258407082963859,
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-      "duration_frames": 52134,
-      "overlap": false,
-      "utterance_id": "850-131004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131004.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.21445569902274,
-      "end_time": 27.378697295101937,
-      "duration": 5.164241596079199,
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-      "overlap": false,
-      "utterance_id": "850-131003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131003.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 78459
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.84020583556434,
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-      "duration": 3.6048234917317052,
-      "start_frame": 445443,
-      "duration_frames": 57677,
-      "overlap": false,
-      "utterance_id": "5886-27508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5886-27508.flac |",
-      "real_speaker_id": "5886",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 0.84,
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-      "speaker_id": "850"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035357.json b/conversations/conv_035357.json
deleted file mode 100644
index f503455c13507e9287159cba09506ca59eb900ef..0000000000000000000000000000000000000000
--- a/conversations/conv_035357.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.573024930872926,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "3006-5698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5698.flac |",
-      "real_speaker_id": "3006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.535579095302232,
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-      "utterance_id": "413-12292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-12292.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 97138,
-      "overlap": false,
-      "utterance_id": "7749-8591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7749-8591.flac |",
-      "real_speaker_id": "7749",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.055160887514244,
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-      "utterance_id": "3006-5698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5698.flac |",
-      "real_speaker_id": "3006",
-      "position_frames": 68335
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.56790017479012,
-      "end_time": 28.283215537691852,
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-      "duration_frames": 59445,
-      "overlap": false,
-      "utterance_id": "7749-8591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7749-8591.flac |",
-      "real_speaker_id": "7749",
-      "position_frames": 97138
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.040645660434944,
-      "end_time": 31.573024930872926,
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-      "overlap": true,
-      "utterance_id": "413-12292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-12292.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 88263
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7749/laugh/0119.wav",
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-      "start_time": 23.65773970568529,
-      "speaker_id": "7749"
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-}
\ No newline at end of file
diff --git a/conversations/conv_035361.json b/conversations/conv_035361.json
deleted file mode 100644
index fea6c325d7c0fde5138f7ba87ec5ee7a1701e0e7..0000000000000000000000000000000000000000
--- a/conversations/conv_035361.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6385-34669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6385-34669.flac |",
-      "real_speaker_id": "6385",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.8616520190779315,
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-      "real_speaker_id": "3830",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6385-220959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6385-220959.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
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-      "duration": 1.4,
-      "start_time": 24.41101401483172,
-      "speaker_id": "6385"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6385/cough/0099.wav",
-      "duration": 1.04,
-      "start_time": 24.99781524173462,
-      "speaker_id": "6385"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035377.json b/conversations/conv_035377.json
deleted file mode 100644
index b58a6fef2b679f6e35f93e8b76e02db8b6cd0d8a..0000000000000000000000000000000000000000
--- a/conversations/conv_035377.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.1036559491378926,
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-      "overlap": false,
-      "utterance_id": "3368-170950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170950.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.395305437010739,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-283130.flac |",
-      "real_speaker_id": "8273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.971166819619707,
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-      "start_frame": 175538,
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-      "overlap": false,
-      "utterance_id": "3368-170952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170952.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.59008053102846,
-      "end_time": 20.56477352171927,
-      "duration": 3.9746929906908126,
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-      "duration_frames": 63595,
-      "overlap": true,
-      "utterance_id": "1498-140040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140040.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.576037595858168,
-      "end_time": 26.347185538146437,
-      "duration": 3.7711479422882683,
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-      "duration_frames": 60338,
-      "overlap": false,
-      "utterance_id": "3368-170952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170952.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 96654
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.639327688271678,
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-      "duration": 3.915926208893752,
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-      "utterance_id": "8273-283127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-283127.flac |",
-      "real_speaker_id": "8273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.87061016809679,
-      "end_time": 32.0,
-      "duration": 1.129389831903211,
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-      "utterance_id": "8273-114823",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-114823.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1498/laugh/0008.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 25.313152572534865,
-      "speaker_id": "8273"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8273/cough/0048.wav",
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-      "start_time": 29.650191103463683,
-      "speaker_id": "8273"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035382.json b/conversations/conv_035382.json
deleted file mode 100644
index 71ab7fd2a309d334c5bc7afadb098126be25e4b2..0000000000000000000000000000000000000000
--- a/conversations/conv_035382.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.39770425603102,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4098-11546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11546.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2093-143271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143271.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.067964572836543,
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-      "duration": 4.274252231763642,
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-      "overlap": false,
-      "utterance_id": "4098-11547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11547.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.226972137192575,
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-      "utterance_id": "4098-11547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11547.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 68388
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.862604680215483,
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-      "overlap": false,
-      "utterance_id": "2093-143271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143271.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 93310
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035385.json b/conversations/conv_035385.json
deleted file mode 100644
index e46ad8bf2108ea63831506eb5e66f0c55fd025bb..0000000000000000000000000000000000000000
--- a/conversations/conv_035385.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.559144040047066,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7065-74573",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74573.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1085",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7065-74597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74597.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "segment_id": "seg0004",
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-      "utterance_id": "1085-156170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-156170.flac |",
-      "real_speaker_id": "1085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-129805.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 49734
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1085/laugh/0038.wav",
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\ No newline at end of file
diff --git a/conversations/conv_035393.json b/conversations/conv_035393.json
deleted file mode 100644
index f95b6c0d89f82f77b40cf5f3f6d07e974d64e252..0000000000000000000000000000000000000000
--- a/conversations/conv_035393.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.25484772730834,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8644-262282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262282.flac |",
-      "real_speaker_id": "8644",
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8644-262284",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1801/laugh/0066.wav",
-      "duration": 0.7791384783639047,
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-      "speaker_id": "1801"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1801/cough/0017.wav",
-      "duration": 0.3396841280209651,
-      "start_time": 20.203209018474144,
-      "speaker_id": "1801"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8644/cough/0037.wav",
-      "duration": 0.31987559965520684,
-      "start_time": 20.2081651573627,
-      "speaker_id": "8644"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1801/laugh/0045.wav",
-      "duration": 0.924800280828872,
-      "start_time": 31.075199719171128,
-      "speaker_id": "1801"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035394.json b/conversations/conv_035394.json
deleted file mode 100644
index d251d06a6a93843f96b03855e7c6e2bb3dd9f462..0000000000000000000000000000000000000000
--- a/conversations/conv_035394.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.5028762651947805,
-      "duration": 3.5028762651947805,
-      "start_frame": 0,
-      "duration_frames": 56046,
-      "overlap": false,
-      "utterance_id": "7128-84121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7128-84121.flac |",
-      "real_speaker_id": "7128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.815406591169145,
-      "end_time": 8.447883888258454,
-      "duration": 4.632477297089309,
-      "start_frame": 61046,
-      "duration_frames": 74119,
-      "overlap": false,
-      "utterance_id": "3994-11512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-11512.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.280351314431087,
-      "end_time": 14.78207992618808,
-      "duration": 5.5017286117569935,
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-      "duration_frames": 88027,
-      "overlap": false,
-      "utterance_id": "2039-141208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141208.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.956861840922105,
-      "end_time": 20.484896288547212,
-      "duration": 5.528034447625106,
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-      "duration_frames": 88448,
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-      "utterance_id": "3994-156757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-156757.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.61289168773095,
-      "end_time": 26.815886917330737,
-      "duration": 6.202995229599784,
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-      "overlap": false,
-      "utterance_id": "7128-84121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7128-84121.flac |",
-      "real_speaker_id": "7128",
-      "position_frames": 56046
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.831261343381474,
-      "end_time": 32.0,
-      "duration": 4.168738656618526,
-      "start_frame": 445300,
-      "duration_frames": 66699,
-      "overlap": false,
-      "utterance_id": "2039-141209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
-      "duration": 3.0985034013605444,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
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-      "start_time": 3.841903582099254
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7128/laugh/0090.wav",
-      "duration": 0.514569225536015,
-      "start_time": 0,
-      "speaker_id": "7128"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035398.json b/conversations/conv_035398.json
deleted file mode 100644
index f5ab44e51d666ac131d5f37f58b124dacb1ec7a8..0000000000000000000000000000000000000000
--- a/conversations/conv_035398.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1112-128136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1112-128136.flac |",
-      "real_speaker_id": "1112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.035914286700116,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 10.266183024773305,
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-      "duration_frames": 91509,
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-      "utterance_id": "1112-128138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1112-128138.flac |",
-      "real_speaker_id": "1112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.09818328337794,
-      "end_time": 19.722436144549068,
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-      "utterance_id": "7177-258977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258977.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.065312082791277,
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-      "utterance_id": "6332-64733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64733.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.407502862740778,
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-      "utterance_id": "7177-258965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258965.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035402.json b/conversations/conv_035402.json
deleted file mode 100644
index 4d8e2003aa731571f0f1e08462a560d0714284a6..0000000000000000000000000000000000000000
--- a/conversations/conv_035402.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "698-122863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122863.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
-      "real_speaker_id": "4480",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 108034
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.30074112804674,
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-      "utterance_id": "698-122876",
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-      "real_speaker_id": "698",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 1.2062713166573147,
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-      "duration_frames": 19300,
-      "overlap": false,
-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
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-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_035405.json b/conversations/conv_035405.json
deleted file mode 100644
index 2456762fc1d19d934ce79cd908e7c807b765ad48..0000000000000000000000000000000000000000
--- a/conversations/conv_035405.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6534-64470",
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4238-12895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12895.flac |",
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-  "foreground_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6534/cough/0013.wav",
-      "duration": 0.94,
-      "start_time": 29.605740861295402,
-      "speaker_id": "6534"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035413.json b/conversations/conv_035413.json
deleted file mode 100644
index e0a920436cfd2bc9468c77eabd48efcef8c2a772..0000000000000000000000000000000000000000
--- a/conversations/conv_035413.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.054723356786857,
-      "duration": 4.054723356786857,
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-      "overlap": false,
-      "utterance_id": "8172-281518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281518.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.872731852346705,
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-      "duration": 4.246931379110606,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-902.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.12446333687995,
-      "end_time": 16.278229054861043,
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-      "overlap": false,
-      "utterance_id": "6153-62535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-62535.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.772095333266666,
-      "end_time": 22.11839505362946,
-      "duration": 5.346299720362793,
-      "start_frame": 268353,
-      "duration_frames": 85540,
-      "overlap": false,
-      "utterance_id": "4594-902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-902.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 67950
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.534226155011762,
-      "end_time": 27.448859448581977,
-      "duration": 4.914633293570215,
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-      "overlap": false,
-      "utterance_id": "6153-62534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-62534.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.062260106054353,
-      "end_time": 32.0,
-      "duration": 3.937739893945647,
-      "start_frame": 448996,
-      "duration_frames": 63003,
-      "overlap": false,
-      "utterance_id": "4594-902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-902.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 153490
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
-      "duration": 4.343810644368585,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4594/cough/0046.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.76,
-      "start_time": 16.375629279006493,
-      "speaker_id": "6153"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4594/cough/0038.wav",
-      "duration": 0.6330998206191298,
-      "start_time": 16.039688652300555,
-      "speaker_id": "4594"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4594/laugh/0006.wav",
-      "duration": 1.56,
-      "start_time": 26.38107783471716,
-      "speaker_id": "4594"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035414.json b/conversations/conv_035414.json
deleted file mode 100644
index 79e5ff32acb61af14a711ccc793b5b365ef346e3..0000000000000000000000000000000000000000
--- a/conversations/conv_035414.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6766694097904526,
-      "duration": 3.6766694097904526,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "9026-282386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9026-282386.flac |",
-      "real_speaker_id": "9026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.524091057514132,
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-      "overlap": false,
-      "utterance_id": "159-135897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-135897.flac |",
-      "real_speaker_id": "159",
-      "position_frames": 0
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-      "start_time": 8.464660393510291,
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-      "utterance_id": "9026-282386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9026-282386.flac |",
-      "real_speaker_id": "9026",
-      "position_frames": 58826
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.01265283393832,
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-      "utterance_id": "159-121891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-121891.flac |",
-      "real_speaker_id": "159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.570282321911822,
-      "end_time": 23.106256294443718,
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-      "overlap": false,
-      "utterance_id": "9026-282385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9026-282385.flac |",
-      "real_speaker_id": "9026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.20853124982333,
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-      "duration": 3.9996378680837026,
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-      "duration_frames": 63994,
-      "overlap": false,
-      "utterance_id": "159-135897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-135897.flac |",
-      "real_speaker_id": "159",
-      "position_frames": 55622
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.81262212733401,
-      "end_time": 32.0,
-      "duration": 3.1873778726659907,
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-      "duration_frames": 50998,
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-      "utterance_id": "9026-282386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9026-282386.flac |",
-      "real_speaker_id": "9026",
-      "position_frames": 120832
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.4792048384964698,
-      "start_time": 15.455268002436606
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_035418.json b/conversations/conv_035418.json
deleted file mode 100644
index 1657ecefd2ee0f4223b4a8ba702677f0fa26c148..0000000000000000000000000000000000000000
--- a/conversations/conv_035418.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7307-276146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-276146.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.888257738388762,
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-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.463873285286212,
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-      "overlap": false,
-      "utterance_id": "7307-92008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-92008.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 61604
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.16022501839553,
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-      "overlap": false,
-      "utterance_id": "198-209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/198-209.flac |",
-      "real_speaker_id": "198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.70558651308585,
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-      "duration_frames": 36710,
-      "overlap": false,
-      "utterance_id": "7307-92008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-92008.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 104650
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
-      "duration": 16.865446779968956,
-      "start_time": 13.786502077520094
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7647/laugh/0000.wav",
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-      "start_time": 16.19056870165842,
-      "speaker_id": "7307"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035422.json b/conversations/conv_035422.json
deleted file mode 100644
index d2440973ad3eda6140893be82c0aef241010364c..0000000000000000000000000000000000000000
--- a/conversations/conv_035422.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.575178424458084,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.98681888200894,
-      "duration": 6.98681888200894,
-      "start_frame": 0,
-      "duration_frames": 111789,
-      "overlap": false,
-      "utterance_id": "7218-80699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-80699.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.4529407640051035,
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-      "duration": 5.197050767370779,
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-      "duration_frames": 83152,
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-      "utterance_id": "8666-293943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293943.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.965805394801173,
-      "end_time": 17.562212394962785,
-      "duration": 4.596407000161612,
-      "start_frame": 207452,
-      "duration_frames": 73542,
-      "overlap": true,
-      "utterance_id": "7218-80699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-80699.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 111789
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.111102088410043,
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-      "overlap": false,
-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.208764063028777,
-      "end_time": 31.575178424458084,
-      "duration": 6.366414361429307,
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-      "duration_frames": 101862,
-      "overlap": false,
-      "utterance_id": "7584-101882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7584-101882.flac |",
-      "real_speaker_id": "7584",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
-      "duration": 0.2440362811791383,
-      "start_time": 8.847150751333066
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
-      "duration": 0.6236734693877551,
-      "start_time": 26.214739050022807
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_035434.json b/conversations/conv_035434.json
deleted file mode 100644
index b1d3dc144b7d92d823f9371c1ec2be7b7225a80c..0000000000000000000000000000000000000000
--- a/conversations/conv_035434.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.268487919078705,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "utterance_id": "3895-6855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
-      "real_speaker_id": "3895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.662423884428289,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-105383.flac |",
-      "real_speaker_id": "7754",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
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-      "real_speaker_id": "1258",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135062.flac |",
-      "real_speaker_id": "1258",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
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-      "position_frames": 170614
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "3895"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035438.json b/conversations/conv_035438.json
deleted file mode 100644
index d6d5554c163faa0ffbff74c9072ff5fa9e29d38f..0000000000000000000000000000000000000000
--- a/conversations/conv_035438.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4267-287369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-287369.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "position_frames": 0
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-      "utterance_id": "2288-155711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2288-155711.flac |",
-      "real_speaker_id": "2288",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.2903863098158,
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-      "utterance_id": "1621-141595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141595.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 21.49006265485236,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-287369.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 73182
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 54794,
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-      "utterance_id": "2288-155711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2288-155711.flac |",
-      "real_speaker_id": "2288",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_035439.json b/conversations/conv_035439.json
deleted file mode 100644
index 669f1147bceda6798a1db8d1093248c9a32aa222..0000000000000000000000000000000000000000
--- a/conversations/conv_035439.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.906840830407567,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-66357.flac |",
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-      "real_speaker_id": "5796",
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-      "real_speaker_id": "6505",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.2233389215565,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6505-231838.flac |",
-      "real_speaker_id": "6505",
-      "position_frames": 91995
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "4591-16221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-16221.flac |",
-      "real_speaker_id": "4591",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035443.json b/conversations/conv_035443.json
deleted file mode 100644
index 4ff3adfe2c18ab5e1308b2c0b6c6b51d956079e2..0000000000000000000000000000000000000000
--- a/conversations/conv_035443.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "345-1120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-173598.flac |",
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-      "position_frames": 0
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-      "utterance_id": "345-1119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1119.flac |",
-      "real_speaker_id": "345",
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-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-133291.flac |",
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-      "real_speaker_id": "2624",
-      "position_frames": 99517
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "345-1119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1119.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 75143
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "345"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/345/cough/0085.wav",
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-      "start_time": 6.064010160964948,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
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-    {
-      "event_class": "cough",
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-      "start_time": 28.081586391879004,
-      "speaker_id": "2624"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035444.json b/conversations/conv_035444.json
deleted file mode 100644
index b45c0c60bcfa49bc82588f96e6c96d5b14be9144..0000000000000000000000000000000000000000
--- a/conversations/conv_035444.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.42242813227856,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.765433749485365,
-      "duration": 4.765433749485365,
-      "start_frame": 0,
-      "duration_frames": 76246,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40169.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18004.flac |",
-      "real_speaker_id": "4590",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40170.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4909.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_035452.json b/conversations/conv_035452.json
deleted file mode 100644
index d1f15c3dad64ab106df4ab9556b753557a672b9e..0000000000000000000000000000000000000000
--- a/conversations/conv_035452.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.201884200230488,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154437.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 0
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-      "real_speaker_id": "6549",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7384-84010.flac |",
-      "real_speaker_id": "7384",
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\ No newline at end of file
diff --git a/conversations/conv_035455.json b/conversations/conv_035455.json
deleted file mode 100644
index 1eddc4635c2e32ad7fd12e04af71dbba0be6c0e0..0000000000000000000000000000000000000000
--- a/conversations/conv_035455.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-    {
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-      "utterance_id": "198-129977",
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-      "real_speaker_id": "198",
-      "position_frames": 87016
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-  ],
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035459.json b/conversations/conv_035459.json
deleted file mode 100644
index 980f317c6a34c724603075773b0a5675b360c369..0000000000000000000000000000000000000000
--- a/conversations/conv_035459.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-124003.flac |",
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-      "duration": 0.6392702313293811,
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-      "speaker_id": "9023"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/154/cough/0058.wav",
-      "duration": 0.84,
-      "start_time": 9.380231621943967,
-      "speaker_id": "154"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/154/cough/0010.wav",
-      "duration": 0.3575498865595008,
-      "start_time": 26.40491113701255,
-      "speaker_id": "154"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035463.json b/conversations/conv_035463.json
deleted file mode 100644
index bfe4cfac695238dfc73f1f965188f716faafa067..0000000000000000000000000000000000000000
--- a/conversations/conv_035463.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.033787863071936,
-      "duration": 5.033787863071936,
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-      "overlap": false,
-      "utterance_id": "7398-98878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98878.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.0895679729735495,
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-      "duration": 4.056868381372808,
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-      "utterance_id": "7398-98876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98876.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.875468094937156,
-      "end_time": 17.121698064445248,
-      "duration": 6.246229969508093,
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-      "duration_frames": 99939,
-      "overlap": false,
-      "utterance_id": "3798-16980",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16980.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.4938429358839,
-      "end_time": 22.136119383098926,
-      "duration": 4.642276447215025,
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-      "overlap": false,
-      "utterance_id": "3798-16981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16981.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.709839518811734,
-      "end_time": 26.893329027362718,
-      "duration": 5.183489508550985,
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-      "utterance_id": "7398-98880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98880.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.106275643578023,
-      "end_time": 32.0,
-      "duration": 3.893724356421977,
-      "start_frame": 449700,
-      "duration_frames": 62299,
-      "overlap": false,
-      "utterance_id": "3798-16981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3798-16981.flac |",
-      "real_speaker_id": "3798",
-      "position_frames": 74276
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 15.524839314159864,
-      "start_time": 11.970893420063488
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
-      "duration": 2.236848072562358,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7398/laugh/0055.wav",
-      "duration": 0.6902310132580975,
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-      "speaker_id": "7398"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3798/cough/0107.wav",
-      "duration": 1.3824384514185397,
-      "start_time": 14.104173619740012,
-      "speaker_id": "3798"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3798/cough/0099.wav",
-      "duration": 1.04,
-      "start_time": 17.732310687980437,
-      "speaker_id": "3798"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7398/laugh/0079.wav",
-      "duration": 1.48,
-      "start_time": 20.1989338818516,
-      "speaker_id": "7398"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3798/laugh/0107.wav",
-      "duration": 0.6242751579227461,
-      "start_time": 31.375724842077254,
-      "speaker_id": "3798"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035475.json b/conversations/conv_035475.json
deleted file mode 100644
index 5fb5b86831804f4d26010eef159745d859fa36b4..0000000000000000000000000000000000000000
--- a/conversations/conv_035475.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.109214883319913,
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-      "overlap": false,
-      "utterance_id": "7398-98876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98876.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.420799619555856,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.657544614614748,
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-      "start_frame": 154520,
-      "duration_frames": 50881,
-      "overlap": false,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.941550197935122,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-144137.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 17.477426737343887,
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-      "duration": 4.224796019675043,
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-      "utterance_id": "7398-98876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98876.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 81747
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.443874970569436,
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-      "duration": 4.9454685906549525,
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-      "duration_frames": 79127,
-      "overlap": false,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 50881
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.107920851546332,
-      "end_time": 32.0,
-      "duration": 2.892079148453668,
-      "start_frame": 465726,
-      "duration_frames": 46273,
-      "overlap": false,
-      "utterance_id": "7398-98876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98876.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 149343
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 12.212471041860711,
-      "start_time": 10.662611088372884
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_2.wav",
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-      "start_time": 25.711403456626403
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7398/laugh/0060.wav",
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-      "speaker_id": "7398"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/332/laugh/0039.wav",
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-      "speaker_id": "332"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.22,
-      "start_time": 13.434691810147985,
-      "speaker_id": "3109"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/332/laugh/0008.wav",
-      "duration": 1.5400572515440838,
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-      "speaker_id": "332"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7398/laugh/0022.wav",
-      "duration": 0.8135392103480162,
-      "start_time": 31.186460789651985,
-      "speaker_id": "7398"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035479.json b/conversations/conv_035479.json
deleted file mode 100644
index 564956f3b784f71fa58c5b81a5544aceeb7a6e8a..0000000000000000000000000000000000000000
--- a/conversations/conv_035479.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.49417881867627,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "3698-29401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-29401.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.83453526835496,
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.998950105295702,
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-      "utterance_id": "3698-29401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-29401.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 83795
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.03608543043458,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51654.flac |",
-      "real_speaker_id": "6076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.666628680732924,
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-      "duration": 6.483846004076202,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3698-29401.flac |",
-      "real_speaker_id": "3698",
-      "position_frames": 157614
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.40579987413303,
-      "end_time": 31.49417881867627,
-      "duration": 3.0883789445432406,
-      "start_frame": 454492,
-      "duration_frames": 49414,
-      "overlap": true,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 74702
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/cough/0001.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3698/cough/0023.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/laugh/0082.wav",
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-      "start_time": 29.650177133520152,
-      "speaker_id": "4428"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035480.json b/conversations/conv_035480.json
deleted file mode 100644
index 319d09559550a6d00a9c0facb718c1ee8e7ff299..0000000000000000000000000000000000000000
--- a/conversations/conv_035480.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.69822669942414,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "2522-147156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3137",
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-      "real_speaker_id": "2522",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3137-163489.flac |",
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-      "speaker_id": "3137"
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-}
\ No newline at end of file
diff --git a/conversations/conv_035481.json b/conversations/conv_035481.json
deleted file mode 100644
index bd0ec5c760e5ece93dffbf64e25245b719d1f895..0000000000000000000000000000000000000000
--- a/conversations/conv_035481.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "utterance_id": "3470-116550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3470-116550.flac |",
-      "real_speaker_id": "3470",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
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-      "speaker_id": 0,
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-      "utterance_id": "3470-116548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3470-116548.flac |",
-      "real_speaker_id": "3470",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.836667845673709,
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-      "overlap": true,
-      "utterance_id": "46-127996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.251258668941816,
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-      "utterance_id": "3470-116549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3470-116549.flac |",
-      "real_speaker_id": "3470",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
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-      "position_frames": 93436
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-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_035496.json b/conversations/conv_035496.json
deleted file mode 100644
index 56658da26f681e9904e8739a991d97a81e31a885..0000000000000000000000000000000000000000
--- a/conversations/conv_035496.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-123197.flac |",
-      "real_speaker_id": "698",
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-      "utterance_id": "5278-40890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40890.flac |",
-      "real_speaker_id": "5278",
-      "position_frames": 94234
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "698-122863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122863.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_035501.json b/conversations/conv_035501.json
deleted file mode 100644
index 6cb8858aa6af0fc2be9c64d018c447fb27e48631..0000000000000000000000000000000000000000
--- a/conversations/conv_035501.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "4899-32637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32637.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.448449871323696,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13146.flac |",
-      "real_speaker_id": "4407",
-      "position_frames": 0
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-      "utterance_id": "7492-87279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-87279.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7492-105653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-105653.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "4899-32658",
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-      "real_speaker_id": "4899",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.451262784388753,
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-      "utterance_id": "7492-99101",
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-      "real_speaker_id": "7492",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7492/laugh/0096.wav",
-      "duration": 1.04,
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035506.json b/conversations/conv_035506.json
deleted file mode 100644
index 32da993cedb9e60df34b8ac9cfe867e7b441985f..0000000000000000000000000000000000000000
--- a/conversations/conv_035506.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.617647637534866,
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-      "start_frame": 0,
-      "duration_frames": 105882,
-      "overlap": false,
-      "utterance_id": "1664-137600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-137600.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 105882
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.387410865154985,
-      "end_time": 19.00472804192144,
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-      "utterance_id": "7012-81370",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7012-81370.flac |",
-      "real_speaker_id": "7012",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.99908526090839,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.808267719052626,
-      "end_time": 32.0,
-      "duration": 4.191732280947374,
-      "start_frame": 444932,
-      "duration_frames": 67067,
-      "overlap": false,
-      "utterance_id": "1664-122623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1664-122623.flac |",
-      "real_speaker_id": "1664",
-      "position_frames": 109415
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
-      "duration": 2.5541043083900226,
-      "start_time": 28.85790751020971
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7012/laugh/0053.wav",
-      "duration": 0.8148754541891374,
-      "start_time": 17.365142675374138,
-      "speaker_id": "7012"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035510.json b/conversations/conv_035510.json
deleted file mode 100644
index e8ec3739f7f37aa3232ea287c9012a81d25a57c2..0000000000000000000000000000000000000000
--- a/conversations/conv_035510.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.25439574738223,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.417708750385916,
-      "duration": 4.417708750385916,
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-      "overlap": false,
-      "utterance_id": "3979-10702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10702.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.6455444764568465,
-      "end_time": 9.290722136049018,
-      "duration": 4.645177659592171,
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-      "utterance_id": "3979-10702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10702.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 70683
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.480728835646055,
-      "end_time": 15.63484476026648,
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-      "duration_frames": 98465,
-      "overlap": false,
-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.890629886656264,
-      "end_time": 20.61334502552429,
-      "duration": 4.722715138868027,
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-      "overlap": false,
-      "utterance_id": "3979-10701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.07376805229046,
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-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 98465
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.76962823150314,
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-      "duration": 3.5165070902259052,
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-      "overlap": true,
-      "utterance_id": "3979-10701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 75563
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.762995007433013,
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-      "overlap": true,
-      "utterance_id": "123-26848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-26848.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3979/laugh/0105.wav",
-      "duration": 1.6,
-      "start_time": 4.596528914444756,
-      "speaker_id": "3979"
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-      "event_class": "cough",
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-    {
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-    {
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "123"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035517.json b/conversations/conv_035517.json
deleted file mode 100644
index 95888422f6aae73251b8756e401daa10785f0a0c..0000000000000000000000000000000000000000
--- a/conversations/conv_035517.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "439-123866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-123866.flac |",
-      "real_speaker_id": "439",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
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-      "utterance_id": "439-122810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-122810.flac |",
-      "real_speaker_id": "439",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 71236
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.131699141201285,
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-      "utterance_id": "1806-143948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143948.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.819209909438317,
-      "end_time": 32.0,
-      "duration": 4.180790090561683,
-      "start_frame": 445107,
-      "duration_frames": 66892,
-      "overlap": false,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 166871
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
-      "duration": 0.6518367346938776,
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-    {
-      "event_class": "Blender",
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6974/laugh/0016.wav",
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-      "speaker_id": "1806"
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-}
\ No newline at end of file
diff --git a/conversations/conv_035526.json b/conversations/conv_035526.json
deleted file mode 100644
index aa86f193b09ac6b5dcda05c770d415f456bc5db6..0000000000000000000000000000000000000000
--- a/conversations/conv_035526.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
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-      "utterance_id": "2990-6534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2990-6534.flac |",
-      "real_speaker_id": "2990",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "3926-891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3926-891.flac |",
-      "real_speaker_id": "3926",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2990-6534.flac |",
-      "real_speaker_id": "2990",
-      "position_frames": 99576
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2990-6534.flac |",
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-      "position_frames": 202377
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "3926",
-      "position_frames": 100803
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 267724
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2990/laugh/0126.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2990/laugh/0041.wav",
-      "duration": 0.9606858733465584,
-      "start_time": 24.66870143875245,
-      "speaker_id": "2990"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3926/laugh/0078.wav",
-      "duration": 0.7335856664440971,
-      "start_time": 31.266414333555904,
-      "speaker_id": "3926"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2990/laugh/0124.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "2990"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035530.json b/conversations/conv_035530.json
deleted file mode 100644
index ff2d8c27501ffb35b75057d418e622b885219e61..0000000000000000000000000000000000000000
--- a/conversations/conv_035530.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.648305357529836,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.85256485173622,
-      "duration": 4.85256485173622,
-      "start_frame": 0,
-      "duration_frames": 77641,
-      "overlap": false,
-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.965233429075335,
-      "end_time": 11.446121913152528,
-      "duration": 6.480888484077194,
-      "start_frame": 79443,
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-      "overlap": true,
-      "utterance_id": "1665-141758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-141758.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.670384268883806,
-      "end_time": 17.293449537571334,
-      "duration": 4.6230652686875295,
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-      "duration_frames": 73969,
-      "overlap": false,
-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 77641
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.974268612597037,
-      "end_time": 21.121786654751322,
-      "duration": 3.1475180421542865,
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-      "duration_frames": 50360,
-      "overlap": false,
-      "utterance_id": "310-129055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.153041057750634,
-      "end_time": 27.008476878365876,
-      "duration": 4.855435820615241,
-      "start_frame": 354448,
-      "duration_frames": 77686,
-      "overlap": false,
-      "utterance_id": "1665-141758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-141758.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 103694
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.309595958919083,
-      "end_time": 31.648305357529836,
-      "duration": 4.338709398610753,
-      "start_frame": 436953,
-      "duration_frames": 69419,
-      "overlap": false,
-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 151610
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.822150676877377,
-      "start_time": 28.73927876274497
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2348/laugh/0077.wav",
-      "duration": 1.0652953643860128,
-      "start_time": 3.6297697057764173,
-      "speaker_id": "2348"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2348/cough/0062.wav",
-      "duration": 0.672012592468836,
-      "start_time": 14.67098000707798,
-      "speaker_id": "2348"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/310/laugh/0083.wav",
-      "duration": 0.6469071494512422,
-      "start_time": 18.262990437073338,
-      "speaker_id": "310"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/310/cough/0072.wav",
-      "duration": 1.12,
-      "start_time": 16.724094217580028,
-      "speaker_id": "310"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1665/cough/0081.wav",
-      "duration": 0.9883614023783835,
-      "start_time": 22.207806595095093,
-      "speaker_id": "1665"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2348/laugh/0077.wav",
-      "duration": 0.9789723268350985,
-      "start_time": 31.0210276731649,
-      "speaker_id": "2348"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035540.json b/conversations/conv_035540.json
deleted file mode 100644
index 76be4dfe241e33c315f24a8c58e1edc85e674fbf..0000000000000000000000000000000000000000
--- a/conversations/conv_035540.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.891213939723535,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.524673847887177,
-      "duration": 4.524673847887177,
-      "start_frame": 0,
-      "duration_frames": 72394,
-      "overlap": false,
-      "utterance_id": "4262-14486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14486.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.567714528159465,
-      "end_time": 12.181997816724811,
-      "duration": 6.614283288565346,
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-      "overlap": false,
-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.54904328341756,
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-      "duration": 4.669210776401639,
-      "start_frame": 200784,
-      "duration_frames": 74707,
-      "overlap": false,
-      "utterance_id": "4262-14487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14487.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.696688619226155,
-      "end_time": 21.81468176646785,
-      "duration": 5.1179931472416955,
-      "start_frame": 267147,
-      "duration_frames": 81887,
-      "overlap": true,
-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 105828
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.31568864578174,
-      "end_time": 27.990036867042082,
-      "duration": 4.674348221260343,
-      "start_frame": 373051,
-      "duration_frames": 74789,
-      "overlap": false,
-      "utterance_id": "4262-14487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14487.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 74707
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.54496693658222,
-      "end_time": 31.891213939723535,
-      "duration": 3.3462470031413156,
-      "start_frame": 456719,
-      "duration_frames": 53539,
-      "overlap": false,
-      "utterance_id": "614-6500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
-      "duration": 12.93659007384669,
-      "start_time": 6.09324850898278
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
-      "duration": 0.2651700680272109,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4262/cough/0086.wav",
-      "duration": 1.14,
-      "start_time": 4.6590396665750005,
-      "speaker_id": "4262"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2724/cough/0017.wav",
-      "duration": 0.5434111875927058,
-      "start_time": 18.904558761743264,
-      "speaker_id": "2724"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4262/laugh/0111.wav",
-      "duration": 1.48,
-      "start_time": 21.827276466087596,
-      "speaker_id": "4262"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4262/cough/0094.wav",
-      "duration": 0.6487121906337043,
-      "start_time": 22.51000407195838,
-      "speaker_id": "4262"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/614/laugh/0099.wav",
-      "duration": 1.12,
-      "start_time": 30.199418893011497,
-      "speaker_id": "614"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035547.json b/conversations/conv_035547.json
deleted file mode 100644
index f760b92f800291527e85f1148cc239306b4b9ae4..0000000000000000000000000000000000000000
--- a/conversations/conv_035547.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.215858975405766,
-      "duration": 4.215858975405766,
-      "start_frame": 0,
-      "duration_frames": 67453,
-      "overlap": false,
-      "utterance_id": "2952-410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-410.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.8896696327685465,
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-      "duration_frames": 50524,
-      "overlap": false,
-      "utterance_id": "836-130900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-130900.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.296953082005473,
-      "end_time": 14.835554195356211,
-      "duration": 6.5386011133507385,
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-      "duration_frames": 104617,
-      "overlap": false,
-      "utterance_id": "2952-410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-410.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 67453
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.829981025558936,
-      "end_time": 21.436055585175417,
-      "duration": 5.6060745596164825,
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-      "duration_frames": 89697,
-      "overlap": false,
-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.590098750651443,
-      "end_time": 27.707758369739203,
-      "duration": 6.11765961908776,
-      "start_frame": 345441,
-      "duration_frames": 97882,
-      "overlap": false,
-      "utterance_id": "2952-410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-410.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 172070
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.57928096251511,
-      "end_time": 32.0,
-      "duration": 3.42071903748489,
-      "start_frame": 457268,
-      "duration_frames": 54731,
-      "overlap": false,
-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 89697
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 14.18748871525153,
-      "start_time": 14.017414357191763
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
-      "duration": 0.0936734693877551,
-      "start_time": 22.577258032148293
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2952/laugh/0064.wav",
-      "duration": 1.24,
-      "start_time": 0.3147718639060325,
-      "speaker_id": "2952"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2952/cough/0021.wav",
-      "duration": 0.9733114825554943,
-      "start_time": 0,
-      "speaker_id": "2952"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2952/laugh/0023.wav",
-      "duration": 1.34,
-      "start_time": 6.873106666970029,
-      "speaker_id": "2952"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1289/laugh/0015.wav",
-      "duration": 1.16,
-      "start_time": 21.630737358052535,
-      "speaker_id": "1289"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1289/cough/0000.wav",
-      "duration": 0.7055525470931068,
-      "start_time": 14.967007434718585,
-      "speaker_id": "1289"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1289/laugh/0017.wav",
-      "duration": 0.5267156745062507,
-      "start_time": 28.768979418635453,
-      "speaker_id": "1289"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035551.json b/conversations/conv_035551.json
deleted file mode 100644
index 0378c0a76b406e24452e440e244a78beffe8a748..0000000000000000000000000000000000000000
--- a/conversations/conv_035551.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.1136921567078,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "end_time": 4.433825085257033,
-      "duration": 4.433825085257033,
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-      "overlap": false,
-      "utterance_id": "1827-143625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.69682985355186,
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-      "duration": 4.668674824072112,
-      "start_frame": 187149,
-      "duration_frames": 74698,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/925-8157.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_035556.json b/conversations/conv_035556.json
deleted file mode 100644
index 3f20556da505fb608036e861f8eadc265fc1e24e..0000000000000000000000000000000000000000
--- a/conversations/conv_035556.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_035567.json b/conversations/conv_035567.json
deleted file mode 100644
index e2c0dfbfb04b50bd1b4d0d5eb4ef2af754ad0395..0000000000000000000000000000000000000000
--- a/conversations/conv_035567.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-158751.flac |",
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_035570.json b/conversations/conv_035570.json
deleted file mode 100644
index 72ea1488f52798113e7658ea4cf2faf1d4259d9d..0000000000000000000000000000000000000000
--- a/conversations/conv_035570.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "start_time": 25.332374265059805,
-      "speaker_id": "1241"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035571.json b/conversations/conv_035571.json
deleted file mode 100644
index eb113cf0c0604a990ca68f52fc5d6ef9784122dd..0000000000000000000000000000000000000000
--- a/conversations/conv_035571.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.491744269402076,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.5483957476472066,
-      "duration": 5.5483957476472066,
-      "start_frame": 0,
-      "duration_frames": 88774,
-      "overlap": false,
-      "utterance_id": "4005-14905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-14905.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.245832092874444,
-      "end_time": 13.19494701197377,
-      "duration": 6.949114919099326,
-      "start_frame": 99933,
-      "duration_frames": 111185,
-      "overlap": false,
-      "utterance_id": "6880-216547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6880-216547.flac |",
-      "real_speaker_id": "6880",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.186762779676506,
-      "end_time": 18.99916772746342,
-      "duration": 4.812404947786913,
-      "start_frame": 226988,
-      "duration_frames": 76998,
-      "overlap": false,
-      "utterance_id": "4005-7262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7262.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.722464837522057,
-      "end_time": 24.937057830413416,
-      "duration": 5.214592992891358,
-      "start_frame": 315559,
-      "duration_frames": 83433,
-      "overlap": false,
-      "utterance_id": "4005-7258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7258.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.210078804069507,
-      "end_time": 31.491744269402076,
-      "duration": 5.281665465332569,
-      "start_frame": 419361,
-      "duration_frames": 84506,
-      "overlap": false,
-      "utterance_id": "664-129011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
-      "real_speaker_id": "664",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
-      "duration": 4.626362737746511,
-      "start_time": 15.397904305510144
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4005/laugh/0090.wav",
-      "duration": 1.36,
-      "start_time": 19.201551197444775,
-      "speaker_id": "4005"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4005/cough/0056.wav",
-      "duration": 0.8942450808783355,
-      "start_time": 17.897327358083906,
-      "speaker_id": "4005"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035584.json b/conversations/conv_035584.json
deleted file mode 100644
index 137ffb0243eec554f42e85c4cf704cdf64769652..0000000000000000000000000000000000000000
--- a/conversations/conv_035584.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.435558645539876,
-      "duration": 4.435558645539876,
-      "start_frame": 0,
-      "duration_frames": 70968,
-      "overlap": false,
-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.357336712130435,
-      "end_time": 10.145016447806405,
-      "duration": 4.7876797356759715,
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-      "duration_frames": 76602,
-      "overlap": false,
-      "utterance_id": "2911-12359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-12359.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.305089307242453,
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-      "duration": 4.662866855283189,
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-      "duration_frames": 74605,
-      "overlap": true,
-      "utterance_id": "1556-143307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-143307.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.507986926841475,
-      "end_time": 20.39486389080309,
-      "duration": 4.8868769639616145,
-      "start_frame": 248127,
-      "duration_frames": 78190,
-      "overlap": false,
-      "utterance_id": "2911-15084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15084.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.944954773852775,
-      "end_time": 24.431478978416905,
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-      "start_frame": 335119,
-      "duration_frames": 55784,
-      "overlap": false,
-      "utterance_id": "1556-139350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-139350.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.078529629968756,
-      "end_time": 29.650927011631566,
-      "duration": 4.572397381662809,
-      "start_frame": 401256,
-      "duration_frames": 73158,
-      "overlap": false,
-      "utterance_id": "2911-15045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15045.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.73947539057705,
-      "end_time": 32.0,
-      "duration": 1.2605246094229514,
-      "start_frame": 491831,
-      "duration_frames": 20168,
-      "overlap": false,
-      "utterance_id": "1556-143307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-143307.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 74605
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
-      "duration": 2.6806295130539577,
-      "start_time": 12.168818828086726
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.767228988268848,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2911/cough/0110.wav",
-      "duration": 0.44534400727215717,
-      "start_time": 14.914625874608745,
-      "speaker_id": "2911"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1556/laugh/0042.wav",
-      "duration": 1.32,
-      "start_time": 24.68352059946736,
-      "speaker_id": "1556"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035588.json b/conversations/conv_035588.json
deleted file mode 100644
index a2f9f70fbbfecab409022e0836aa592d83485c4d..0000000000000000000000000000000000000000
--- a/conversations/conv_035588.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.23080573998611,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 82331,
-      "overlap": false,
-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.615449776844875,
-      "end_time": 10.642884427780809,
-      "duration": 5.027434650935934,
-      "start_frame": 89847,
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-      "overlap": false,
-      "utterance_id": "4706-18009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-18009.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.245491211208638,
-      "end_time": 17.82022970122427,
-      "duration": 6.574738490015632,
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-      "duration_frames": 105195,
-      "overlap": false,
-      "utterance_id": "8118-268287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-268287.flac |",
-      "real_speaker_id": "8118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.359427904685695,
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-      "duration": 4.1986556581853876,
-      "start_frame": 293750,
-      "duration_frames": 67178,
-      "overlap": false,
-      "utterance_id": "4706-18009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-18009.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 80438
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.324513937522724,
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-      "duration": 4.530608610227532,
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-      "utterance_id": "8118-114469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-114469.flac |",
-      "real_speaker_id": "8118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 31.23080573998611,
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-      "duration_frames": 49370,
-      "overlap": true,
-      "utterance_id": "4706-28495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28495.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_0.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4706/cough/0123.wav",
-      "duration": 0.638796066321561,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8118/laugh/0093.wav",
-      "duration": 1.28,
-      "start_time": 18.097811116222065,
-      "speaker_id": "8118"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8118/laugh/0067.wav",
-      "duration": 0.7300800470204252,
-      "start_time": 27.971885237201512,
-      "speaker_id": "8118"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4706/laugh/0110.wav",
-      "duration": 0.8186371042003415,
-      "start_time": 28.703161342816,
-      "speaker_id": "4706"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035592.json b/conversations/conv_035592.json
deleted file mode 100644
index 1a3a0fa9eaaa2c5a59210cfc219220c2857fb8be..0000000000000000000000000000000000000000
--- a/conversations/conv_035592.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.341987870306035,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.52187976123163,
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-      "start_frame": 0,
-      "duration_frames": 104350,
-      "overlap": false,
-      "utterance_id": "7832-258250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-258250.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.431241730073352,
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-      "overlap": true,
-      "utterance_id": "6807-106437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-106437.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.304248564848269,
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-      "duration": 3.1512879027494725,
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-      "duration_frames": 50420,
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-      "utterance_id": "7832-258250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-258250.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 104350
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 92215
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 154770
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
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-      "speaker_id": "6807"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7832/laugh/0011.wav",
-      "duration": 1.4,
-      "start_time": 11.800843806473718,
-      "speaker_id": "7832"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6807/cough/0135.wav",
-      "duration": 1.28,
-      "start_time": 23.393420550404237,
-      "speaker_id": "6807"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035593.json b/conversations/conv_035593.json
deleted file mode 100644
index 0bf3cc0cb801227c6e0a4cefa80668d93f6ff23f..0000000000000000000000000000000000000000
--- a/conversations/conv_035593.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.471686964437538,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3446-144019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3446-144019.flac |",
-      "real_speaker_id": "3446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8165464759800756,
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-      "utterance_id": "58-121081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121081.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.151496249668023,
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-      "duration": 5.201514644432228,
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-      "overlap": false,
-      "utterance_id": "3446-144021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3446-144021.flac |",
-      "real_speaker_id": "3446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.116330662350096,
-      "end_time": 19.468215893759805,
-      "duration": 4.3518852314097085,
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-      "overlap": false,
-      "utterance_id": "58-121081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121081.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 80886
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.8548047422196,
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-      "utterance_id": "3446-144021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3446-144021.flac |",
-      "real_speaker_id": "3446",
-      "position_frames": 83224
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.955906051639975,
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-      "utterance_id": "58-121075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
-      "real_speaker_id": "58",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_0.wav",
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-      "start_time": 19.219619582374477,
-      "speaker_id": "3446"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035603.json b/conversations/conv_035603.json
deleted file mode 100644
index aec0a989e3d51a52700776a3abb2a4a5c57e0189..0000000000000000000000000000000000000000
--- a/conversations/conv_035603.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "421-124401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 66082
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.357215793055946,
-      "end_time": 27.93858852281336,
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-      "overlap": false,
-      "utterance_id": "2050-164332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 57035
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.511237205431406,
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-      "duration": 3.4887627945685935,
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-      "utterance_id": "421-128336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035615.json b/conversations/conv_035615.json
deleted file mode 100644
index 45de4162203f5afd561299bc616aad02aa050492..0000000000000000000000000000000000000000
--- a/conversations/conv_035615.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5082-16015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-16015.flac |",
-      "real_speaker_id": "5082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-16015.flac |",
-      "real_speaker_id": "5082",
-      "position_frames": 66172
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "8296-279865",
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-      "real_speaker_id": "8296",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5082-34548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5082-34548.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035619.json b/conversations/conv_035619.json
deleted file mode 100644
index cf24396fd2ae97ecdefa9cefb63c0f0d49e3b354..0000000000000000000000000000000000000000
--- a/conversations/conv_035619.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.9456499523453106,
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "598",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127704.flac |",
-      "real_speaker_id": "598",
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-  "foreground_events": [
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-    {
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-      "speaker_id": "6242"
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\ No newline at end of file
diff --git a/conversations/conv_035623.json b/conversations/conv_035623.json
deleted file mode 100644
index 2081c30abca11b92f4778cfc71e984df806c4793..0000000000000000000000000000000000000000
--- a/conversations/conv_035623.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.213121154440962,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
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-      "speaker_id": 0,
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-      "utterance_id": "6534-64469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64469.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.692324370601764,
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-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
-      "position_frames": 185683
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
-      "duration": 3.3932266432639566,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.9906728547379386,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3779/laugh/0057.wav",
-      "duration": 0.5961707067657172,
-      "start_time": 18.796179096611436,
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "3779"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035628.json b/conversations/conv_035628.json
deleted file mode 100644
index f0bd5616107fca069e9a73544799af3876049e0c..0000000000000000000000000000000000000000
--- a/conversations/conv_035628.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130746.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 0
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-      "start_time": 16.434991907834753,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130746.flac |",
-      "real_speaker_id": "831",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
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-      "speaker_id": "5296"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035635.json b/conversations/conv_035635.json
deleted file mode 100644
index 89486510b0ffff68501696179b1e424f2efa2f66..0000000000000000000000000000000000000000
--- a/conversations/conv_035635.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1968-145732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2477.flac |",
-      "real_speaker_id": "2436",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2477.flac |",
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-    },
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-      "real_speaker_id": "2834",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "2834",
-      "position_frames": 97449
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1968/laugh/0089.wav",
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-      "speaker_id": "1968"
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_035639.json b/conversations/conv_035639.json
deleted file mode 100644
index 0360da4a0fb81fd0ca71af018b5df44018e19248..0000000000000000000000000000000000000000
--- a/conversations/conv_035639.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "6784-76150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76150.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 4.3555302601539125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76150.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_035642.json b/conversations/conv_035642.json
deleted file mode 100644
index 58f8d8d2a719e52982f6e7e98cc38b8c60e769e9..0000000000000000000000000000000000000000
--- a/conversations/conv_035642.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50776.flac |",
-      "real_speaker_id": "5731",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/75-854.flac |",
-      "real_speaker_id": "75",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5731-50778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5731-50778.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_035645.json b/conversations/conv_035645.json
deleted file mode 100644
index 015f134d3072a625a69a398b0ba0a2766654412a..0000000000000000000000000000000000000000
--- a/conversations/conv_035645.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "real_speaker_id": "1638",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11550.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84448.flac |",
-      "real_speaker_id": "1638",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035654.json b/conversations/conv_035654.json
deleted file mode 100644
index 652c8f81cbb069b2995e28b7911e8e524ff8aa97..0000000000000000000000000000000000000000
--- a/conversations/conv_035654.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "150-126112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126112.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.265839494152775,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-292138.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126112.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 77165
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
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-      "utterance_id": "8605-276939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-276939.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
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-      "duration": 1.4,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "start_time": 28.694887575969727,
-      "speaker_id": "8605"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035655.json b/conversations/conv_035655.json
deleted file mode 100644
index 8d70602da9cfc1fa9d3ece6616988d10581edc07..0000000000000000000000000000000000000000
--- a/conversations/conv_035655.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8228-232690.flac |",
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_035658.json b/conversations/conv_035658.json
deleted file mode 100644
index 1c8cf9cd30b28b6d6ec7a4c8a704cadbb78511d9..0000000000000000000000000000000000000000
--- a/conversations/conv_035658.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.903883473362306,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256239.flac |",
-      "real_speaker_id": "8208",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 57351
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_035662.json b/conversations/conv_035662.json
deleted file mode 100644
index 8c98e2481c9e15cc9540c7f5c9aee6591e102898..0000000000000000000000000000000000000000
--- a/conversations/conv_035662.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121743.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/161-121743.flac |",
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-      "position_frames": 86829
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_035669.json b/conversations/conv_035669.json
deleted file mode 100644
index 8319a086ade9bd9ff919db1631ac3c41369b2b03..0000000000000000000000000000000000000000
--- a/conversations/conv_035669.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132307.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035674.json b/conversations/conv_035674.json
deleted file mode 100644
index 7b7ea218e50aeb029497a183a4f858f60026ffab..0000000000000000000000000000000000000000
--- a/conversations/conv_035674.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2411-132530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132530.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.085008077210588,
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-      "duration": 6.024086869932625,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132530.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 59445
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.499090046605769,
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-      "overlap": false,
-      "utterance_id": "7392-105672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-105672.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.564372262395203,
-      "end_time": 21.068401114052207,
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-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.98447703901335,
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-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 88064
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.324540973854013,
-      "end_time": 32.0,
-      "duration": 3.6754590261459867,
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-      "utterance_id": "6098-57836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6098-57836.flac |",
-      "real_speaker_id": "6098",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2411/laugh/0103.wav",
-      "duration": 1.3217036543194474,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 26.720813150625855,
-      "speaker_id": "6098"
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-}
\ No newline at end of file
diff --git a/conversations/conv_035678.json b/conversations/conv_035678.json
deleted file mode 100644
index 51c6565adf668794293b61e6473fa3fc739b7c63..0000000000000000000000000000000000000000
--- a/conversations/conv_035678.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127538.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 84290
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.52920301609155,
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-      "utterance_id": "7239-63500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 177876
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "264-121332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
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-  "background_events": [
-    {
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035681.json b/conversations/conv_035681.json
deleted file mode 100644
index 8d8082d19c60e124bb4922bff14517b247551aec..0000000000000000000000000000000000000000
--- a/conversations/conv_035681.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "727",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-284523.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "727",
-      "position_frames": 197396
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-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-      "utterance_id": "727-124443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_035686.json b/conversations/conv_035686.json
deleted file mode 100644
index 503f47ca592a452f8fec56140cd1d530201973d4..0000000000000000000000000000000000000000
--- a/conversations/conv_035686.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7502-100439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100439.flac |",
-      "real_speaker_id": "7502",
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-    },
-    {
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-      "speaker_id": "7502"
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-      "event_class": "laugh",
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-      "duration": 0.96,
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-      "start_time": 31.23058136888147,
-      "speaker_id": "6006"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035690.json b/conversations/conv_035690.json
deleted file mode 100644
index bd91549f87ba678e02c1318ada54ba6711488922..0000000000000000000000000000000000000000
--- a/conversations/conv_035690.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.495204648781947,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8505630066955145,
-      "duration": 3.8505630066955145,
-      "start_frame": 0,
-      "duration_frames": 61609,
-      "overlap": false,
-      "utterance_id": "884-129800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.508308037770277,
-      "end_time": 9.283438236894407,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282528.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
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-      "utterance_id": "884-129800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 61609
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration": 5.584942417344445,
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-      "duration_frames": 89359,
-      "overlap": false,
-      "utterance_id": "2895-8663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.66734958556594,
-      "end_time": 27.43902077277131,
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-      "overlap": false,
-      "utterance_id": "884-129800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 140921
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.70947167423382,
-      "end_time": 31.495204648781947,
-      "duration": 3.785732974548125,
-      "start_frame": 443351,
-      "duration_frames": 60571,
-      "overlap": true,
-      "utterance_id": "2895-8662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8662.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/884/laugh/0054.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.84,
-      "start_time": 17.598065399226165,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2895/laugh/0097.wav",
-      "duration": 1.1379494763552302,
-      "start_time": 26.443805491069735,
-      "speaker_id": "2895"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035697.json b/conversations/conv_035697.json
deleted file mode 100644
index f186a52b50c65296219779fa27645226846e3969..0000000000000000000000000000000000000000
--- a/conversations/conv_035697.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.72862944939165,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.809230326195948,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 17.427120635420458,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 90948
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 57410
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.473653631873493,
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-      "start_frame": 455578,
-      "duration_frames": 52079,
-      "overlap": true,
-      "utterance_id": "3969-175415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-175415.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 11.205080304776294,
-      "speaker_id": "3969"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "1801"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035707.json b/conversations/conv_035707.json
deleted file mode 100644
index 6280d6a9426dd1d67e97f20c192d9a8663ff965f..0000000000000000000000000000000000000000
--- a/conversations/conv_035707.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6075-57156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57156.flac |",
-      "real_speaker_id": "6075",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "6075",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.759894296470701,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46266.flac |",
-      "real_speaker_id": "5653",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6075",
-      "position_frames": 102202
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "6188-78885",
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-      "real_speaker_id": "6188",
-      "position_frames": 0
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-  "background_events": [
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-    {
-      "event_class": "laugh",
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-    {
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-      "speaker_id": "6188"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035710.json b/conversations/conv_035710.json
deleted file mode 100644
index f6cfd6037e15c89ecd6cc9cef3257063d6a1538b..0000000000000000000000000000000000000000
--- a/conversations/conv_035710.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8300-275128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275128.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3185",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275128.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 122980
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.183524366314003,
-      "end_time": 32.0,
-      "duration": 4.816475633685997,
-      "start_frame": 434936,
-      "duration_frames": 77063,
-      "overlap": false,
-      "utterance_id": "6967-50152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6967-50152.flac |",
-      "real_speaker_id": "6967",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
-      "duration": 0.205578231292517,
-      "start_time": 19.492129654327403
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 29.95274170759014
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3185/cough/0050.wav",
-      "duration": 0.96,
-      "start_time": 4.348166690698255,
-      "speaker_id": "3185"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6967/cough/0024.wav",
-      "duration": 0.31365728675907284,
-      "start_time": 31.686342713240926,
-      "speaker_id": "6967"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035711.json b/conversations/conv_035711.json
deleted file mode 100644
index 72affcf63e3fae2360a34e9d82acb90ea7e6da66..0000000000000000000000000000000000000000
--- a/conversations/conv_035711.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.394932465797898,
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-      "utterance_id": "4260-176854",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176854.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.959148587488281,
-      "end_time": 10.453123893613128,
-      "duration": 4.493975306124848,
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-      "duration_frames": 71903,
-      "overlap": true,
-      "utterance_id": "4260-176853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176853.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.05887440616625,
-      "end_time": 16.947792009146482,
-      "duration": 4.888917602980231,
-      "start_frame": 192941,
-      "duration_frames": 78222,
-      "overlap": false,
-      "utterance_id": "4848-29108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-29108.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.07111973799481,
-      "end_time": 22.112607568544487,
-      "duration": 4.041487830549677,
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-      "utterance_id": "4260-176854",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176854.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 86318
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.74431715789444,
-      "end_time": 28.586265999419567,
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-      "overlap": false,
-      "utterance_id": "4848-28247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-28247.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.99687209576974,
-      "end_time": 32.0,
-      "duration": 3.0031279042302614,
-      "start_frame": 463949,
-      "duration_frames": 48050,
-      "overlap": false,
-      "utterance_id": "4260-176854",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176854.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 150981
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 24.02587713487821,
-      "start_time": 7.312756394153826
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_0.wav",
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-      "start_time": 27.876278587680645
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
-      "duration": 4.473554220412096,
-      "start_time": 13.620204272182258
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4260/laugh/0104.wav",
-      "duration": 1.1657281591820547,
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-      "event_class": "cough",
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-      "duration": 1.106488852072446,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4260/cough/0038.wav",
-      "duration": 0.6038644198171175,
-      "start_time": 31.396135580182882,
-      "speaker_id": "4260"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035727.json b/conversations/conv_035727.json
deleted file mode 100644
index 5feb498159e161e25696c866023c466ba26dbf63..0000000000000000000000000000000000000000
--- a/conversations/conv_035727.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.88793176317709,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "428-125877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125877.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.618083169030044,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6177-75790.flac |",
-      "real_speaker_id": "6177",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "428-125877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125877.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 67766
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.311036521079735,
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-      "overlap": true,
-      "utterance_id": "6177-57662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6177-57662.flac |",
-      "real_speaker_id": "6177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.589521368815443,
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-      "overlap": false,
-      "utterance_id": "3783-176659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3783-176659.flac |",
-      "real_speaker_id": "3783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.421707337368236,
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-      "duration": 5.466224425808854,
-      "start_frame": 422747,
-      "duration_frames": 87459,
-      "overlap": false,
-      "utterance_id": "428-125877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125877.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 148931
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Dog",
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-      "duration": 0.35356009070294786,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6177/cough/0057.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/428/laugh/0009.wav",
-      "duration": 1.52,
-      "start_time": 11.157261027034025,
-      "speaker_id": "428"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/428/cough/0092.wav",
-      "duration": 1.14,
-      "start_time": 9.871370719239865,
-      "speaker_id": "428"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035731.json b/conversations/conv_035731.json
deleted file mode 100644
index 11428b6720dc151d11c8ab75e80ec1029f66cbfb..0000000000000000000000000000000000000000
--- a/conversations/conv_035731.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3088-5441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5441.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.916911725735398,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-149794.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
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-    {
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-      "utterance_id": "3088-5441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5441.flac |",
-      "real_speaker_id": "3088",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "3503",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.46289986693076,
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-      "utterance_id": "3503-127082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127082.flac |",
-      "real_speaker_id": "3503",
-      "position_frames": 71824
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.943875239437844,
-      "end_time": 32.0,
-      "duration": 6.056124760562156,
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-      "overlap": false,
-      "utterance_id": "3088-5441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5441.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 125273
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
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-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3909/laugh/0098.wav",
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-      "start_time": 7.770684158862913,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3503/laugh/0082.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3503/cough/0095.wav",
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-      "speaker_id": "3503"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035746.json b/conversations/conv_035746.json
deleted file mode 100644
index 2f068905d89007b9b1fb77d6052adb0d77240c53..0000000000000000000000000000000000000000
--- a/conversations/conv_035746.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.951219978348945,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "start_frame": 0,
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-      "utterance_id": "3845-8924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8924.flac |",
-      "real_speaker_id": "3845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.289263619031786,
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-      "utterance_id": "4480-44312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4480-44312.flac |",
-      "real_speaker_id": "4480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.92885592415879,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180298.flac |",
-      "real_speaker_id": "374",
-      "position_frames": 49792
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3845/cough/0095.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4480/laugh/0023.wav",
-      "duration": 0.8369365671504008,
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-}
\ No newline at end of file
diff --git a/conversations/conv_035747.json b/conversations/conv_035747.json
deleted file mode 100644
index b1b4cf36d3d55e9e542e0bcb256dee5593aaa42f..0000000000000000000000000000000000000000
--- a/conversations/conv_035747.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 90094,
-      "overlap": false,
-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.104686951787363,
-      "end_time": 10.64372675066016,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-124587.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.69655568731348,
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-      "utterance_id": "2230-124587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-124587.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 72624
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.267709248745476,
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-      "overlap": false,
-      "utterance_id": "2230-148550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2230-148550.flac |",
-      "real_speaker_id": "2230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.405294001114907,
-      "end_time": 32.0,
-      "duration": 2.594705998885093,
-      "start_frame": 470484,
-      "duration_frames": 41515,
-      "overlap": false,
-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 90094
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2230/laugh/0004.wav",
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-      "start_time": 15.7088834971636,
-      "speaker_id": "2230"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2361/laugh/0029.wav",
-      "duration": 0.999829727596854,
-      "start_time": 31.000170272403146,
-      "speaker_id": "2361"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035750.json b/conversations/conv_035750.json
deleted file mode 100644
index 9ff90217e589fcc55851fbd7c055ff9f983aba1b..0000000000000000000000000000000000000000
--- a/conversations/conv_035750.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2790-142824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182394.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 0
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-      "utterance_id": "2790-142824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 90048
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.964060020236328,
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-      "utterance_id": "7644-104722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.727737981902937,
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-      "overlap": false,
-      "utterance_id": "3989-182389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182389.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 1.3803682215253907,
-      "start_frame": 489914,
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-      "overlap": false,
-      "utterance_id": "2790-142824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 182072
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3989/cough/0057.wav",
-      "duration": 0.89782957823346,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2790/laugh/0073.wav",
-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "2790"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035766.json b/conversations/conv_035766.json
deleted file mode 100644
index cfdfc00a54e0c4d6d7c278f3c957b695a0310a31..0000000000000000000000000000000000000000
--- a/conversations/conv_035766.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "707-161166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-161166.flac |",
-      "real_speaker_id": "707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.917255468773338,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6232-36628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.82067845243177,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 88365
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.429953476306196,
-      "end_time": 32.0,
-      "duration": 5.570046523693804,
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-      "utterance_id": "6232-36628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
-      "position_frames": 105896
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-    {
-      "event_class": "Cat",
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-      "duration": 2.236575963718821,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6232/cough/0003.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6232/laugh/0017.wav",
-      "duration": 0.990686558613274,
-      "start_time": 25.168645139412735,
-      "speaker_id": "6232"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035770.json b/conversations/conv_035770.json
deleted file mode 100644
index 989dae115e08d395b0a7e3e65c42013f07d6ba84..0000000000000000000000000000000000000000
--- a/conversations/conv_035770.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
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-      "real_speaker_id": "5636",
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\ No newline at end of file
diff --git a/conversations/conv_035782.json b/conversations/conv_035782.json
deleted file mode 100644
index f6648e7581b10fab78fb6eda56dc8d6fa7609c11..0000000000000000000000000000000000000000
--- a/conversations/conv_035782.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_035785.json b/conversations/conv_035785.json
deleted file mode 100644
index 734661ec25623e810f87cbaccd64762312a3494f..0000000000000000000000000000000000000000
--- a/conversations/conv_035785.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_035789.json b/conversations/conv_035789.json
deleted file mode 100644
index 5bd4ca6237d67ba7800fa98f8559b1e14bbfaa34..0000000000000000000000000000000000000000
--- a/conversations/conv_035789.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1027/cough/0028.wav",
-      "duration": 1.142006673472148,
-      "start_time": 30.85799332652785,
-      "speaker_id": "1027"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035793.json b/conversations/conv_035793.json
deleted file mode 100644
index 25590ac2ad2def9255d60a13d3cf0954a69ced21..0000000000000000000000000000000000000000
--- a/conversations/conv_035793.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.8087239732083,
-      "duration": 4.8087239732083,
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-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.431573243737795,
-      "end_time": 9.345775748905016,
-      "duration": 3.9142025051672205,
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-      "duration_frames": 62627,
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-      "utterance_id": "3379-132592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.183916756503336,
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-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 76939
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.957487205081064,
-      "end_time": 20.5720021869916,
-      "duration": 4.614514981910537,
-      "start_frame": 255319,
-      "duration_frames": 73832,
-      "overlap": true,
-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.938262851454567,
-      "end_time": 26.712132529821677,
-      "duration": 4.77386967836711,
-      "start_frame": 351012,
-      "duration_frames": 76381,
-      "overlap": false,
-      "utterance_id": "3379-132592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 62627
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.525324838906776,
-      "end_time": 32.0,
-      "duration": 4.474675161093224,
-      "start_frame": 440405,
-      "duration_frames": 71594,
-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 168410
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_0.wav",
-      "duration": 0.5264172335600907,
-      "start_time": 8.863651094875031
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
-      "duration": 1.1118475126791387,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/laugh/0043.wav",
-      "duration": 0.7637305772885318,
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-      "speaker_id": "1487"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3379/laugh/0010.wav",
-      "duration": 0.9844415880771138,
-      "start_time": 7.395170332083053,
-      "speaker_id": "3379"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/laugh/0079.wav",
-      "duration": 0.8590324824958239,
-      "start_time": 16.108405200030553,
-      "speaker_id": "1487"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/laugh/0092.wav",
-      "duration": 0.84,
-      "start_time": 31.16,
-      "speaker_id": "1487"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035794.json b/conversations/conv_035794.json
deleted file mode 100644
index 393add10cd5dddaa33d2fdba5a804a382b0ea978..0000000000000000000000000000000000000000
--- a/conversations/conv_035794.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.472207897777583,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.475499882596053,
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-      "overlap": false,
-      "utterance_id": "8222-274378",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274378.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.751955264309945,
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-      "utterance_id": "37-225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-225.flac |",
-      "real_speaker_id": "37",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.310710026424346,
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-      "utterance_id": "6912-70847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.726382972111018,
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-      "duration_frames": 70507,
-      "overlap": false,
-      "utterance_id": "8222-274378",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274378.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 71607
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.324875863088057,
-      "end_time": 23.076219748269867,
-      "duration": 3.75134388518181,
-      "start_frame": 309198,
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-      "overlap": true,
-      "utterance_id": "37-215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-215.flac |",
-      "real_speaker_id": "37",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.163304340266915,
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-      "duration_frames": 72124,
-      "overlap": false,
-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.57806030553489,
-      "end_time": 31.472207897777583,
-      "duration": 2.8941475922426925,
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-      "duration_frames": 46306,
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-      "utterance_id": "8222-274379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274379.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/37/laugh/0064.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6912/laugh/0016.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 23.04185955478279,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8222"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035802.json b/conversations/conv_035802.json
deleted file mode 100644
index b99003282578344909bfd05a14dd5c4e4fa17350..0000000000000000000000000000000000000000
--- a/conversations/conv_035802.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 0
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-      "real_speaker_id": "3723",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 87977
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.952605033561902,
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-      "duration": 6.002346226185833,
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-      "utterance_id": "3723-171115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171115.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 72607
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 175284
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.07410356836516,
-      "end_time": 32.0,
-      "duration": 2.9258964316348397,
-      "start_frame": 465185,
-      "duration_frames": 46814,
-      "overlap": false,
-      "utterance_id": "3723-171115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171115.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 168644
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035805.json b/conversations/conv_035805.json
deleted file mode 100644
index c25ed1ed2d59489d18dea8ba584147fe97a16b3c..0000000000000000000000000000000000000000
--- a/conversations/conv_035805.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1773-145712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145712.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1773-145729",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 53121,
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-      "utterance_id": "1280-135136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-    {
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_035813.json b/conversations/conv_035813.json
deleted file mode 100644
index ab65242e2545420788ba7c67f290a956ca067da8..0000000000000000000000000000000000000000
--- a/conversations/conv_035813.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.552108167401126,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 67557
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-      "utterance_id": "4687-28005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-28005.flac |",
-      "real_speaker_id": "4687",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_035814.json b/conversations/conv_035814.json
deleted file mode 100644
index 0a887b13f3df22dd76b6cda1e496b0c6c08fb866..0000000000000000000000000000000000000000
--- a/conversations/conv_035814.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "1061",
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\ No newline at end of file
diff --git a/conversations/conv_035818.json b/conversations/conv_035818.json
deleted file mode 100644
index 7365221a44dc58cf0982b054a2ffb984984f26be..0000000000000000000000000000000000000000
--- a/conversations/conv_035818.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_035822.json b/conversations/conv_035822.json
deleted file mode 100644
index fdef5172c5a7c8fe98d5017bfc7a256a6739e578..0000000000000000000000000000000000000000
--- a/conversations/conv_035822.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.500261620647645,
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-      "overlap": false,
-      "utterance_id": "6539-66391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6539-66391.flac |",
-      "real_speaker_id": "6539",
-      "position_frames": 98128
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-      "event_class": "cough",
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-      "duration": 1.52,
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-      "speaker_id": "6539"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.14,
-      "start_time": 21.757432326200522,
-      "speaker_id": "263"
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-      "event_class": "cough",
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-      "speaker_id": "263"
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-}
\ No newline at end of file
diff --git a/conversations/conv_035823.json b/conversations/conv_035823.json
deleted file mode 100644
index e704e4e98704854aa6ff03c4f17dc8afe5987abd..0000000000000000000000000000000000000000
--- a/conversations/conv_035823.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.771774998374651,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34606.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 60695
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
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-      "segment_id": "seg0004",
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-      "start_time": 18.757527889880272,
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-      "overlap": false,
-      "utterance_id": "6147-34605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34605.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6147-34607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34607.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.612313528942877,
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-      "duration": 2.3876864710571226,
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-      "overlap": false,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 178391
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1849/laugh/0033.wav",
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-    {
-      "event_class": "cough",
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-      "start_time": 12.917025094337589,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6147/laugh/0069.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1849/cough/0042.wav",
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-      "start_time": 28.62188562040438,
-      "speaker_id": "1849"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035834.json b/conversations/conv_035834.json
deleted file mode 100644
index 8681054072e55a7b95003a97a3384e6575718cd8..0000000000000000000000000000000000000000
--- a/conversations/conv_035834.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.13961489417586,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7672-96509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7672-96509.flac |",
-      "real_speaker_id": "7672",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.099396430777148,
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-      "utterance_id": "7315-86809",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7315-86809.flac |",
-      "real_speaker_id": "7315",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2053-138901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138901.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.49323105442256,
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-      "utterance_id": "7672-96509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7672-96509.flac |",
-      "real_speaker_id": "7672",
-      "position_frames": 76558
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.23799606557244,
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-      "utterance_id": "2053-138888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2053-138888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 69775
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.138957592431673,
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-      "duration": 2.0006573017441873,
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-      "utterance_id": "7315-86682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7315-86682.flac |",
-      "real_speaker_id": "7315",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7672/cough/0028.wav",
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-      "event_class": "laugh",
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-      "start_time": 7.066696702768968,
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-    {
-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2053/cough/0111.wav",
-      "duration": 1.1497525775800146,
-      "start_time": 30.030979315908848,
-      "speaker_id": "2053"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035838.json b/conversations/conv_035838.json
deleted file mode 100644
index 832fba98b71cd4322735c21218bcf5de020051dc..0000000000000000000000000000000000000000
--- a/conversations/conv_035838.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3955-181687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-181687.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8307-120456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120456.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "3955-38223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-38223.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5671-50454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.86630975253919,
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-      "real_speaker_id": "3955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "end_time": 32.0,
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-      "utterance_id": "8307-120457",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120457.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3955/laugh/0048.wav",
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-      "start_time": 0.47056915603718297,
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-    },
-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
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-    {
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-      "speaker_id": "8307"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5671/laugh/0128.wav",
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-      "speaker_id": "5671"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "5671"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3955/laugh/0110.wav",
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-      "speaker_id": "3955"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035843.json b/conversations/conv_035843.json
deleted file mode 100644
index 20a7f261eae574864e9895aa431f029fe797d0b5..0000000000000000000000000000000000000000
--- a/conversations/conv_035843.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "segment_id": "seg0006",
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035844.json b/conversations/conv_035844.json
deleted file mode 100644
index 715f8db4f16976f7b2b0f7e833f3ade0efa739c3..0000000000000000000000000000000000000000
--- a/conversations/conv_035844.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.451730134803245,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132782.flac |",
-      "real_speaker_id": "1316",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/273-129288.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.033618531556918,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-34501.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 70516
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "1316",
-      "position_frames": 66058
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_035852.json b/conversations/conv_035852.json
deleted file mode 100644
index f31afdedff0e107fdd0f29fd0e10877a0826333f..0000000000000000000000000000000000000000
--- a/conversations/conv_035852.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
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-      "real_speaker_id": "7994",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "7837-109174",
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-      "position_frames": 82115
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-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_035854.json b/conversations/conv_035854.json
deleted file mode 100644
index d9b57a4e6229c57aad86ef469dee9ae55694674b..0000000000000000000000000000000000000000
--- a/conversations/conv_035854.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1052-139307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1052-139307.flac |",
-      "real_speaker_id": "1052",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "6529",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3090-164191.flac |",
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-    {
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-    {
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-      "utterance_id": "1052-139308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1052-139308.flac |",
-      "real_speaker_id": "1052",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.082575832419156,
-      "end_time": 32.0,
-      "duration": 0.9174241675808439,
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-      "duration_frames": 14678,
-      "overlap": false,
-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 96642
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
-      "duration": 1.7417913832199547,
-      "start_time": 24.111526408491123
-    },
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_2.wav",
-      "duration": 4.037414965986395,
-      "start_time": 18.03635513532087
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6529/laugh/0047.wav",
-      "duration": 0.9838143095473277,
-      "start_time": 26.020329258291838,
-      "speaker_id": "6529"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035855.json b/conversations/conv_035855.json
deleted file mode 100644
index b27ae92c325b10b9f520e23653ebc493be367dba..0000000000000000000000000000000000000000
--- a/conversations/conv_035855.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.146810694225428,
-      "duration": 5.146810694225428,
-      "start_frame": 0,
-      "duration_frames": 82348,
-      "overlap": false,
-      "utterance_id": "4697-92150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-92150.flac |",
-      "real_speaker_id": "4697",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.008534004715638,
-      "end_time": 10.378766088534768,
-      "duration": 5.370232083819129,
-      "start_frame": 80136,
-      "duration_frames": 85923,
-      "overlap": true,
-      "utterance_id": "6025-58760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58760.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.999438669559769,
-      "end_time": 17.288554853468852,
-      "duration": 5.2891161839090834,
-      "start_frame": 191991,
-      "duration_frames": 84625,
-      "overlap": false,
-      "utterance_id": "8156-276902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8156-276902.flac |",
-      "real_speaker_id": "8156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.70668914370343,
-      "end_time": 24.117621944291876,
-      "duration": 6.41093280058845,
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-      "duration_frames": 102574,
-      "overlap": false,
-      "utterance_id": "4697-92179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-92179.flac |",
-      "real_speaker_id": "4697",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.112164401588835,
-      "end_time": 30.42607202732453,
-      "duration": 5.313907625735693,
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-      "duration_frames": 85022,
-      "overlap": false,
-      "utterance_id": "8156-104485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8156-104485.flac |",
-      "real_speaker_id": "8156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.725764914639214,
-      "end_time": 32.0,
-      "duration": 1.274235085360786,
-      "start_frame": 491612,
-      "duration_frames": 20387,
-      "overlap": false,
-      "utterance_id": "4697-92179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4697-92179.flac |",
-      "real_speaker_id": "4697",
-      "position_frames": 102574
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.775991945839138,
-      "start_time": 21.337377413112485
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6025/laugh/0041.wav",
-      "duration": 1.56,
-      "start_time": 8.576876707289774,
-      "speaker_id": "6025"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4697/laugh/0006.wav",
-      "duration": 0.8603566251641912,
-      "start_time": 29.757652512938584,
-      "speaker_id": "4697"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035859.json b/conversations/conv_035859.json
deleted file mode 100644
index 1625cae532f60c7e8983ebdec0425d6d52e555a4..0000000000000000000000000000000000000000
--- a/conversations/conv_035859.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.35040345863614,
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-      "overlap": false,
-      "utterance_id": "5192-19397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5192-19397.flac |",
-      "real_speaker_id": "5192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.678951975047253,
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-      "utterance_id": "4217-9955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9955.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.98679577432626,
-      "end_time": 17.21495368892248,
-      "duration": 5.22815791459622,
-      "start_frame": 191788,
-      "duration_frames": 83650,
-      "overlap": false,
-      "utterance_id": "497-125118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
-      "real_speaker_id": "497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.387805347885767,
-      "end_time": 24.82021785741675,
-      "duration": 6.432412509530982,
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-      "overlap": false,
-      "utterance_id": "4217-9955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9955.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 71750
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.956766069066788,
-      "end_time": 32.0,
-      "duration": 6.043233930933212,
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-      "overlap": false,
-      "utterance_id": "5192-19396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5192-19396.flac |",
-      "real_speaker_id": "5192",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4217/laugh/0005.wav",
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-      "start_time": 21.739147411130745,
-      "speaker_id": "4217"
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-}
\ No newline at end of file
diff --git a/conversations/conv_035863.json b/conversations/conv_035863.json
deleted file mode 100644
index 3d9945815c50d8098e1178918c1d689cc6eb90a9..0000000000000000000000000000000000000000
--- a/conversations/conv_035863.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19858045284221,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "639-143022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.9201409130314335,
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-      "utterance_id": "4592-26872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-26872.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 68861,
-      "overlap": false,
-      "utterance_id": "639-143022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 93022
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.206830826192288,
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-      "duration": 4.432509393205169,
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-      "duration_frames": 70920,
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-      "utterance_id": "4592-22178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22178.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.15549151735756,
-      "end_time": 26.172074780280134,
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-      "duration_frames": 96265,
-      "overlap": false,
-      "utterance_id": "639-143022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 161883
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.58830446565546,
-      "end_time": 31.19858045284221,
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-      "duration_frames": 89764,
-      "overlap": true,
-      "utterance_id": "4592-26872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-26872.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 70527
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/639/laugh/0050.wav",
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-    {
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-      "start_time": 11.39813059106382,
-      "speaker_id": "639"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035875.json b/conversations/conv_035875.json
deleted file mode 100644
index cd29a03dba56905c762c6b64d3160393649a1f68..0000000000000000000000000000000000000000
--- a/conversations/conv_035875.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.006249435578574,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.884632129950116,
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-      "overlap": false,
-      "utterance_id": "7241-90850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90850.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.038352013666724,
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-      "duration_frames": 82171,
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-      "utterance_id": "7241-90850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90850.flac |",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "2140-17255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-17255.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23955.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 0,
-      "speaker_id": "7241"
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-      "duration": 1.0954796137558076,
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-      "speaker_id": "2140"
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-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 27.945208255107715,
-      "speaker_id": "7241"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035878.json b/conversations/conv_035878.json
deleted file mode 100644
index e0d7cd079539774ec5cbad5f6e6ad1907b7955f6..0000000000000000000000000000000000000000
--- a/conversations/conv_035878.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.70895891052898,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2496-156087",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156087.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.1798115814457,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135020.flac |",
-      "real_speaker_id": "1313",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "2496-156067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156067.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.24186733016182,
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-      "start_frame": 323869,
-      "duration_frames": 80072,
-      "overlap": false,
-      "utterance_id": "1313-135020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135020.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 106944
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.836349302340807,
-      "end_time": 31.70895891052898,
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-      "duration_frames": 77961,
-      "overlap": false,
-      "utterance_id": "1322-137588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137588.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
-      "duration": 3.212703881379245,
-      "start_time": 25.801284466816792
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1322/cough/0094.wav",
-      "duration": 0.4487798892680665,
-      "start_time": 31.551220110731933,
-      "speaker_id": "1322"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035879.json b/conversations/conv_035879.json
deleted file mode 100644
index 60258cd062c72d93e38cf9fc286d793064aec5ff..0000000000000000000000000000000000000000
--- a/conversations/conv_035879.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.786911795510523,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26995.flac |",
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-      "utterance_id": "4335-15081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15081.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 92624
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26943.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.945830749434677,
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-      "utterance_id": "1492-174461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-174461.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.862685533733067,
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-      "duration": 3.924226261777456,
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-      "utterance_id": "4335-15082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4335-15082.flac |",
-      "real_speaker_id": "4335",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.52,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 15.963690114581413,
-      "speaker_id": "4335"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035880.json b/conversations/conv_035880.json
deleted file mode 100644
index 261281b46bafa842796554d70c9d19d21dd460bb..0000000000000000000000000000000000000000
--- a/conversations/conv_035880.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278214.flac |",
-      "real_speaker_id": "8197",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "5278",
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-    {
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-      "real_speaker_id": "1777",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.88954577547428,
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-    {
-      "segment_id": "seg0006",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_035896.json b/conversations/conv_035896.json
deleted file mode 100644
index 3f749de5f8c65c3cc7a768a002f3d6db3e019cac..0000000000000000000000000000000000000000
--- a/conversations/conv_035896.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "3983-5371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5371.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
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-    {
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-      "utterance_id": "7140-72205",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6482-98857.flac |",
-      "real_speaker_id": "6482",
-      "position_frames": 50616
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.385462038620002,
-      "end_time": 32.0,
-      "duration": 4.614537961379998,
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-      "utterance_id": "6482-289558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6482-289558.flac |",
-      "real_speaker_id": "6482",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6482/laugh/0147.wav",
-      "duration": 1.0607929725088578,
-      "start_time": 26.6969702379713,
-      "speaker_id": "6482"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6482/laugh/0028.wav",
-      "duration": 1.8,
-      "start_time": 27.540372058723218,
-      "speaker_id": "6482"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035897.json b/conversations/conv_035897.json
deleted file mode 100644
index f45f736b7253edba764612fc51483785bf0367eb..0000000000000000000000000000000000000000
--- a/conversations/conv_035897.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.51873534386801,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.2175161801877152,
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-      "utterance_id": "5424-296464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-296464.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.5884902712343694,
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-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.05071632367332,
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-      "overlap": false,
-      "utterance_id": "1283-129808",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-129808.flac |",
-      "real_speaker_id": "1283",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.716784241976807,
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-      "overlap": false,
-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 70911
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.43923080408272,
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-      "overlap": false,
-      "utterance_id": "5424-291111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-291111.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.9584296215692,
-      "end_time": 30.51873534386801,
-      "duration": 4.5603057222988115,
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-      "overlap": false,
-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 156220
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5424/laugh/0132.wav",
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-      "duration": 1.0405438006133014,
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-      "speaker_id": "6694"
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-}
\ No newline at end of file
diff --git a/conversations/conv_035901.json b/conversations/conv_035901.json
deleted file mode 100644
index 79840524d7cbf033684470deaa0e6fc4fc56cf30..0000000000000000000000000000000000000000
--- a/conversations/conv_035901.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6643-67851.flac |",
-      "real_speaker_id": "6643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
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-      "utterance_id": "2104-75220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-75220.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "2104-78253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78253.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.894672505024616,
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-      "utterance_id": "6300-39661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 82331
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2104-78240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78240.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "2104"
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-}
\ No newline at end of file
diff --git a/conversations/conv_035906.json b/conversations/conv_035906.json
deleted file mode 100644
index fbca90b5427c7ba3cf36d1377944b94b0678e5a7..0000000000000000000000000000000000000000
--- a/conversations/conv_035906.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7959-109185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109185.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-28452.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 0
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-      "utterance_id": "7408-255943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-255943.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.395548926264077,
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-      "utterance_id": "7959-109176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109176.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 56797
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.6175546076892715,
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-      "utterance_id": "7408-256039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-256039.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/164574.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035910.json b/conversations/conv_035910.json
deleted file mode 100644
index f385d1941a41cc65cd3934e2f64257b29dcf327f..0000000000000000000000000000000000000000
--- a/conversations/conv_035910.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.605820632653009,
-      "duration": 6.605820632653009,
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-      "overlap": false,
-      "utterance_id": "2825-6391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-6391.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.769827391981562,
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-      "utterance_id": "2825-6391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-6391.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 105693
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7198-76169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-76169.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.640882739643533,
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-      "real_speaker_id": "3063",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.432957109814716,
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-      "utterance_id": "7198-80652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-      "start_time": 6.883874510247932,
-      "speaker_id": "2825"
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 26.918934386049916,
-      "speaker_id": "7198"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_035911.json b/conversations/conv_035911.json
deleted file mode 100644
index 1f2ac709e0e1ffc185609f8bcbb9b8c276247af5..0000000000000000000000000000000000000000
--- a/conversations/conv_035911.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73974.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
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-      "start_time": 5.503980762619756,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148521.flac |",
-      "real_speaker_id": "2240",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-58757.flac |",
-      "real_speaker_id": "4969",
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-      "speaker_id": 0,
-      "start_time": 21.137344689997136,
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-      "utterance_id": "6913-80509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 90074
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.78972794754798,
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-      "utterance_id": "2240-148522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148522.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.34112316011194,
-      "end_time": 32.0,
-      "duration": 1.658876839888059,
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-      "duration_frames": 26542,
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-      "utterance_id": "2240-148522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2240-148522.flac |",
-      "real_speaker_id": "2240",
-      "position_frames": 64383
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "Alarm_bell_ringing",
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-      "speaker_id": "2240"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035917.json b/conversations/conv_035917.json
deleted file mode 100644
index 98bce1d3b9f96c066a823d4535f35eaf304e0e64..0000000000000000000000000000000000000000
--- a/conversations/conv_035917.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3848-28169.flac |",
-      "real_speaker_id": "3848",
-      "position_frames": 88164
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 216586
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 1.5706853679251154,
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-      "overlap": false,
-      "utterance_id": "4957-30119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-30119.flac |",
-      "real_speaker_id": "4957",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "5883"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035926.json b/conversations/conv_035926.json
deleted file mode 100644
index bf92cee68a7de8c6df36d9975af794bec5e51dcd..0000000000000000000000000000000000000000
--- a/conversations/conv_035926.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1482-140067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140067.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 0
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-      "utterance_id": "1482-140072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140072.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1392",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.250000125524593,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1760-143006.flac |",
-      "real_speaker_id": "1760",
-      "position_frames": 75008
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 4.122219235039701,
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-      "utterance_id": "1482-140071",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1482-140071.flac |",
-      "real_speaker_id": "1482",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_035930.json b/conversations/conv_035930.json
deleted file mode 100644
index aab64aa44fc9a8c92f95df2f803c2004a8eb7c88..0000000000000000000000000000000000000000
--- a/conversations/conv_035930.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-699.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-128339.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "403"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035940.json b/conversations/conv_035940.json
deleted file mode 100644
index c86c2dc327eb6a8f342a7a9fbe3a2166052a6ba6..0000000000000000000000000000000000000000
--- a/conversations/conv_035940.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4379-18040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18040.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.293058421557558,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-128660.flac |",
-      "real_speaker_id": "224",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1129.flac |",
-      "real_speaker_id": "345",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "4379-190740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-190740.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "345-1129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1129.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 64804
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.97706131735552,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-129790.flac |",
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-  "paralinguistic_events": [
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-      "speaker_id": "4379"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035947.json b/conversations/conv_035947.json
deleted file mode 100644
index ba8e63c5c985a3d0eeb3649d3ebd0a530f8a2f37..0000000000000000000000000000000000000000
--- a/conversations/conv_035947.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.47902957056133,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
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-      "duration_frames": 66747,
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-      "utterance_id": "6747-76145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76145.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 0
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-    {
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 126756
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.44995872855627,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76145.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 66747
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-    {
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-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 222799
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "6747-76101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76101.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6747/laugh/0025.wav",
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-      "speaker_id": "6747"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035951.json b/conversations/conv_035951.json
deleted file mode 100644
index 843fac6a8cdc4b4ad6a3ab2044fb855d936590e9..0000000000000000000000000000000000000000
--- a/conversations/conv_035951.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126292.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-127525.flac |",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126328.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.25732417175304,
-      "end_time": 32.0,
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-      "utterance_id": "365-126328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126328.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 63815
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/480/laugh/0047.wav",
-      "duration": 1.24,
-      "start_time": 5.109749085010574,
-      "speaker_id": "480"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/480/cough/0008.wav",
-      "duration": 0.5892031113256464,
-      "start_time": 6.866193661479539,
-      "speaker_id": "480"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/365/laugh/0061.wav",
-      "duration": 1.56,
-      "start_time": 23.205303983764036,
-      "speaker_id": "365"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035956.json b/conversations/conv_035956.json
deleted file mode 100644
index f515e9ff3b9ac24edd0c9e22a430ab1420ed2774..0000000000000000000000000000000000000000
--- a/conversations/conv_035956.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.726535821034616,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.042719393914235,
-      "duration": 4.042719393914235,
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-      "duration_frames": 64683,
-      "overlap": false,
-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.7940511675679165,
-      "end_time": 9.941914843670512,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.686365559985678,
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-      "overlap": false,
-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 64683
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "6754-107485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107485.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.539007691225542,
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-      "utterance_id": "6754-107482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107482.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5429-210770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5429-210770.flac |",
-      "real_speaker_id": "5429",
-      "position_frames": 123172
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 10.11321971879818,
-      "speaker_id": "2374"
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_035967.json b/conversations/conv_035967.json
deleted file mode 100644
index d5ac58f66f41c78faf38b8545c590b619ba702e4..0000000000000000000000000000000000000000
--- a/conversations/conv_035967.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3227-24788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24788.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
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-    {
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-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1337-10673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-10673.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "7090",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-156963.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_035971.json b/conversations/conv_035971.json
deleted file mode 100644
index 2509dc7f19f58ccd53085844e7b12898cdb7f83a..0000000000000000000000000000000000000000
--- a/conversations/conv_035971.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "4800-73728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73728.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-39672.flac |",
-      "real_speaker_id": "6548",
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-      "duration_frames": 85037,
-      "overlap": false,
-      "utterance_id": "4800-73729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.836816773684166,
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-      "utterance_id": "5984-56840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56840.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.535443124224983,
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-      "utterance_id": "5984-56837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56837.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-  "paralinguistic_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_035984.json b/conversations/conv_035984.json
deleted file mode 100644
index 8eb2b7864ca8e3d74643d8ecd537b1a88ce7762f..0000000000000000000000000000000000000000
--- a/conversations/conv_035984.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "133-143240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-143240.flac |",
-      "real_speaker_id": "133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.647612997795473,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.11980685780894,
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-      "duration_frames": 79072,
-      "overlap": true,
-      "utterance_id": "133-142924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-142924.flac |",
-      "real_speaker_id": "133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.726837513590178,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
-      "position_frames": 66576
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_9.wav",
-      "duration": 1.007687074829932,
-      "start_time": 23.716207359730603
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
-      "duration": 0.9175736961451247,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4894/laugh/0077.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/133/laugh/0006.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4894/laugh/0069.wav",
-      "duration": 0.8800293291236616,
-      "start_time": 13.730602594507051,
-      "speaker_id": "4894"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4894/cough/0046.wav",
-      "duration": 1.2,
-      "start_time": 21.403760713595254,
-      "speaker_id": "4894"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4894/laugh/0069.wav",
-      "duration": 1.0351780278652636,
-      "start_time": 22.8647143378978,
-      "speaker_id": "4894"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035985.json b/conversations/conv_035985.json
deleted file mode 100644
index 56032a19c2341acbcaadff3f796f8f9b1a685cc9..0000000000000000000000000000000000000000
--- a/conversations/conv_035985.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.32115327174724,
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-      "start_frame": 0,
-      "duration_frames": 69138,
-      "overlap": false,
-      "utterance_id": "6590-64285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64285.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.735186316182668,
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-      "duration": 4.550322312606625,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13262.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.755387434218704,
-      "end_time": 21.48988693973535,
-      "duration": 4.734499505516644,
-      "start_frame": 268086,
-      "duration_frames": 75751,
-      "overlap": false,
-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 82346
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.930143302548885,
-      "end_time": 26.318746339375423,
-      "duration": 4.38860303682654,
-      "start_frame": 350882,
-      "duration_frames": 70217,
-      "overlap": false,
-      "utterance_id": "3947-13260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13260.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.908222189911413,
-      "end_time": 30.57049391549601,
-      "duration": 3.6622717255845965,
-      "start_frame": 430531,
-      "duration_frames": 58596,
-      "overlap": false,
-      "utterance_id": "6590-64285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64285.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 69138
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.175273163703856,
-      "end_time": 32.0,
-      "duration": 0.8247268362961435,
-      "start_frame": 498804,
-      "duration_frames": 13195,
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-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 158097
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6590/laugh/0112.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3947/cough/0102.wav",
-      "duration": 1.0960698924450993,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3947/cough/0093.wav",
-      "duration": 1.32,
-      "start_time": 23.927240108341167,
-      "speaker_id": "3947"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035988.json b/conversations/conv_035988.json
deleted file mode 100644
index 60e7eeb2a7b1cd1351262ef05c29fd49a190fa64..0000000000000000000000000000000000000000
--- a/conversations/conv_035988.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.249348105664996,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.62113482317946,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124140.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.243804078357567,
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-      "overlap": false,
-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.018053732437664,
-      "end_time": 22.242727217202777,
-      "duration": 5.224673484765111,
-      "start_frame": 272288,
-      "duration_frames": 83594,
-      "overlap": false,
-      "utterance_id": "200-124140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124140.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 77990
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.514639391942406,
-      "end_time": 28.58790862924759,
-      "duration": 6.073269237305183,
-      "start_frame": 360234,
-      "duration_frames": 97172,
-      "overlap": false,
-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 73271
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.482298860041016,
-      "end_time": 31.249348105664996,
-      "duration": 2.76704924562398,
-      "start_frame": 455716,
-      "duration_frames": 44272,
-      "overlap": true,
-      "utterance_id": "200-124139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124139.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
-      "duration": 1.0443083900226757,
-      "start_time": 3.4718138729490664
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
-      "duration": 1.0075269524454211,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/200/cough/0016.wav",
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-      "start_time": 11.572499009841794,
-      "speaker_id": "200"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_035992.json b/conversations/conv_035992.json
deleted file mode 100644
index d40b6b5d52aeca306348bb3bc7abac8df60e8c0a..0000000000000000000000000000000000000000
--- a/conversations/conv_035992.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.9228539291036784,
-      "start_frame": 0,
-      "duration_frames": 62765,
-      "overlap": false,
-      "utterance_id": "2368-157057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157057.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.693922570492241,
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-      "overlap": false,
-      "utterance_id": "5733-55099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55099.flac |",
-      "real_speaker_id": "5733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.718872928816184,
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-      "overlap": true,
-      "utterance_id": "2368-157054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157054.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.811718878519047,
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-      "utterance_id": "7139-75362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75362.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.26545049298177,
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-      "utterance_id": "5733-55099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5733-55099.flac |",
-      "real_speaker_id": "5733",
-      "position_frames": 57437
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.314468473800307,
-      "end_time": 32.0,
-      "duration": 5.685531526199693,
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-      "overlap": false,
-      "utterance_id": "2368-157066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157066.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2368/laugh/0078.wav",
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-      "start_time": 7.858373939363583,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5733/laugh/0082.wav",
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-      "start_time": 22.155176932679474,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2368/cough/0141.wav",
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-      "start_time": 31.405453517846052,
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-}
\ No newline at end of file
diff --git a/conversations/conv_036003.json b/conversations/conv_036003.json
deleted file mode 100644
index 1b03def0f8974c204bd04440293bd1269144ff54..0000000000000000000000000000000000000000
--- a/conversations/conv_036003.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6643422466600355,
-      "duration": 3.6643422466600355,
-      "start_frame": 0,
-      "duration_frames": 58629,
-      "overlap": false,
-      "utterance_id": "2289-152253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152253.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.96641250667542,
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-      "utterance_id": "2289-152254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152254.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "4991-6181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4991-6181.flac |",
-      "real_speaker_id": "4991",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.752713939216648,
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4991-6181.flac |",
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 15.071921758888635,
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-      "event_class": "laugh",
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-      "duration": 1.34,
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-      "speaker_id": "2289"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036004.json b/conversations/conv_036004.json
deleted file mode 100644
index ba4cd7b6c46da852104444ba84b1a4822e639464..0000000000000000000000000000000000000000
--- a/conversations/conv_036004.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18006.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 0
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-      "utterance_id": "4590-18004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18004.flac |",
-      "real_speaker_id": "4590",
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-      "speaker_id": 0,
-      "start_time": 16.960195092047925,
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18006.flac |",
-      "real_speaker_id": "4590",
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-      "speaker_id": 0,
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-      "utterance_id": "7665-104979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7665-104979.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_036012.json b/conversations/conv_036012.json
deleted file mode 100644
index 21e906a043898259a8282173462a2566f0950492..0000000000000000000000000000000000000000
--- a/conversations/conv_036012.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-87997.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
-      "real_speaker_id": "1705",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "474",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-141422.flac |",
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-  "background_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_036015.json b/conversations/conv_036015.json
deleted file mode 100644
index 47b2cc0fe0c1551b41c4f226586201690dcf3932..0000000000000000000000000000000000000000
--- a/conversations/conv_036015.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "8075-279233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279233.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48830.flac |",
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-      "utterance_id": "8075-279239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279239.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6272-70191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70191.flac |",
-      "real_speaker_id": "6272",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48830.flac |",
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-      "position_frames": 78012
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-  ],
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-}
\ No newline at end of file
diff --git a/conversations/conv_036019.json b/conversations/conv_036019.json
deleted file mode 100644
index 09dff39748ca2e3eb164c0b7098be3851517b1be..0000000000000000000000000000000000000000
--- a/conversations/conv_036019.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "2208-11020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "201-127786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
-      "real_speaker_id": "201",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 65797
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168500.flac |",
-      "real_speaker_id": "3187",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-122255.flac |",
-      "real_speaker_id": "201",
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-  "background_events": [],
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2208/laugh/0024.wav",
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-      "speaker_id": "2208"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036023.json b/conversations/conv_036023.json
deleted file mode 100644
index 18785277a6b708214495e8899ceca98dedea7f55..0000000000000000000000000000000000000000
--- a/conversations/conv_036023.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.466022235168953,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.570968681467036,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94467.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.443881083191787,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 52551
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.035161125201112,
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-      "utterance_id": "4705-16048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-16048.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.73328272720235,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 114911
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.20917885357207,
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-      "utterance_id": "8494-244443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244443.flac |",
-      "real_speaker_id": "8494",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 1.56,
-      "start_time": 28.772188278565416,
-      "speaker_id": "1695"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036035.json b/conversations/conv_036035.json
deleted file mode 100644
index 4546867c7eb3b21d9f6541670a60ffee3c3faf9c..0000000000000000000000000000000000000000
--- a/conversations/conv_036035.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.935314844865406,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4703-73029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4703-73029.flac |",
-      "real_speaker_id": "4703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-146770.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5416.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.5915873669231,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5417.flac |",
-      "real_speaker_id": "3448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.821704655252237,
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-      "utterance_id": "4703-59231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4703-59231.flac |",
-      "real_speaker_id": "4703",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4703-59231.flac |",
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-      "position_frames": 95967
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
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-    {
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-      "duration": 1.28,
-      "start_time": 20.994235181155986,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4703/cough/0031.wav",
-      "duration": 0.8912022922271439,
-      "start_time": 18.753038722020747,
-      "speaker_id": "4703"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036039.json b/conversations/conv_036039.json
deleted file mode 100644
index 3501c7e983020e4f0bef8bd7cd383cfe7e853cd8..0000000000000000000000000000000000000000
--- a/conversations/conv_036039.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.737274155231162,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "421-128336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.91114373800802,
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-      "utterance_id": "2512-157480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2512-157480.flac |",
-      "real_speaker_id": "2512",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7278-104730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-104730.flac |",
-      "real_speaker_id": "7278",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "2512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "2512",
-      "position_frames": 60661
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-104730.flac |",
-      "real_speaker_id": "7278",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036042.json b/conversations/conv_036042.json
deleted file mode 100644
index a41e2e9680710b1ee59e7297d0c37c021d5731aa..0000000000000000000000000000000000000000
--- a/conversations/conv_036042.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.901591391564642,
-      "duration": 3.901591391564642,
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-      "overlap": false,
-      "utterance_id": "2920-156230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156230.flac |",
-      "real_speaker_id": "2920",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.274423122027843,
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-      "utterance_id": "2920-156230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156230.flac |",
-      "real_speaker_id": "2920",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156230.flac |",
-      "real_speaker_id": "2920",
-      "position_frames": 140967
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156230.flac |",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 5.463162152639147,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1040/laugh/0050.wav",
-      "duration": 1.02,
-      "start_time": 8.61478663884834,
-      "speaker_id": "1040"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_036045.json b/conversations/conv_036045.json
deleted file mode 100644
index e6c1654d163869c60e183790728992c2ef6ca9c8..0000000000000000000000000000000000000000
--- a/conversations/conv_036045.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134363.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7134-67233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.174386000978174,
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-      "overlap": false,
-      "utterance_id": "969-134363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134363.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 99843
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.11100040941229,
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-      "utterance_id": "7134-67200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67200.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.632246020700283,
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-      "utterance_id": "3389-130127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-130127.flac |",
-      "real_speaker_id": "3389",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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\ No newline at end of file
diff --git a/conversations/conv_036053.json b/conversations/conv_036053.json
deleted file mode 100644
index b91b8c0dc644ecc387b79cbe67fc0d105be9477d..0000000000000000000000000000000000000000
--- a/conversations/conv_036053.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "188-141613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-141613.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
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-      "utterance_id": "188-141613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-141613.flac |",
-      "real_speaker_id": "188",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 103729
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.295701754558333,
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-      "utterance_id": "8044-84206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8044-84206.flac |",
-      "real_speaker_id": "8044",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.464808317411233,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-135249.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "laugh",
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-      "duration": 1.32,
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-      "speaker_id": "173"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036054.json b/conversations/conv_036054.json
deleted file mode 100644
index 17f7fa9ba5a992c06fd1afada3066c5b4722d6b3..0000000000000000000000000000000000000000
--- a/conversations/conv_036054.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "speaker_id": 1,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "188-141613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-141613.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "7752-110522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110522.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "188-141613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-141613.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 80042
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.14156227734553,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
-    },
-    {
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-      "position_frames": 78944
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.393455316753947,
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-      "duration": 1.606544683246053,
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-      "duration_frames": 25704,
-      "overlap": false,
-      "utterance_id": "188-135249",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-135249.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7752/laugh/0074.wav",
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-    {
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-      "start_time": 30.69172685499708,
-      "speaker_id": "188"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036058.json b/conversations/conv_036058.json
deleted file mode 100644
index bdc22112de0e5d187b324d80b3b3a46836f601e2..0000000000000000000000000000000000000000
--- a/conversations/conv_036058.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.91876534292878,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.421157742212375,
-      "duration": 4.421157742212375,
-      "start_frame": 0,
-      "duration_frames": 70738,
-      "overlap": false,
-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.2286069736668015,
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-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 70738
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 85566
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20426.flac |",
-      "real_speaker_id": "4872",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "3082",
-      "position_frames": 187247
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "duration": 1.04,
-      "start_time": 22.65895730140988,
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-      "event_class": "cough",
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-      "speaker_id": "3082"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_036062.json b/conversations/conv_036062.json
deleted file mode 100644
index 2f8075ed206c0b6fb37ec7dd952cf9aecbf20169..0000000000000000000000000000000000000000
--- a/conversations/conv_036062.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5893-54390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5893-54390.flac |",
-      "real_speaker_id": "5893",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.779153117673454,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
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-      "utterance_id": "2792-152929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 86453
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167609.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.96064074609048,
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-      "utterance_id": "3294-167597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167597.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.089524660846166,
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-      "duration": 2.910475339153834,
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-      "overlap": false,
-      "utterance_id": "2792-144136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "2792"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036069.json b/conversations/conv_036069.json
deleted file mode 100644
index 449b24b6cffb30e3a043b66f986fb8a442654a40..0000000000000000000000000000000000000000
--- a/conversations/conv_036069.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "28-12332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/28-12332.flac |",
-      "real_speaker_id": "28",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6509-76574.flac |",
-      "real_speaker_id": "6509",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "28-12332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/28-12332.flac |",
-      "real_speaker_id": "28",
-      "position_frames": 48706
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.24422705063248,
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-      "utterance_id": "5157-47237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47237.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6509-67147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6509-67147.flac |",
-      "real_speaker_id": "6509",
-      "position_frames": 107704
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_6.wav",
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-      "start_time": 10.089783947187726,
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-    {
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-      "duration": 1.34,
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 21.030742262593435,
-      "speaker_id": "5157"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036074.json b/conversations/conv_036074.json
deleted file mode 100644
index 5f94b788d41dfa21e0f6a6038e9081602f81919c..0000000000000000000000000000000000000000
--- a/conversations/conv_036074.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7732-107520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107520.flac |",
-      "real_speaker_id": "7732",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.14435508350707,
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-      "overlap": true,
-      "utterance_id": "1107-133254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133254.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1107-1042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-1042.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7732",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.73508691021707,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133727.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
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-      "position_frames": 103719
-    }
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-  "background_events": [
-    {
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-    {
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-    {
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-      "duration": 0.68,
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-    {
-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 27.21731588735781,
-      "speaker_id": "1107"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036078.json b/conversations/conv_036078.json
deleted file mode 100644
index 694f810dd978a27a24a69bb879636c564659b25f..0000000000000000000000000000000000000000
--- a/conversations/conv_036078.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.192562102992973,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.387838798750564,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-140277.flac |",
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-      "position_frames": 69370
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-}
\ No newline at end of file
diff --git a/conversations/conv_036079.json b/conversations/conv_036079.json
deleted file mode 100644
index 46db70e4737d5262a3f22e16dd3c5d1a558bab59..0000000000000000000000000000000000000000
--- a/conversations/conv_036079.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 168226
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_036081.json b/conversations/conv_036081.json
deleted file mode 100644
index d2e6dcbfd3a53a0c833a689cde4128b2c44d2cc8..0000000000000000000000000000000000000000
--- a/conversations/conv_036081.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
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-      "position_frames": 0
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-      "segment_id": "seg0006",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036086.json b/conversations/conv_036086.json
deleted file mode 100644
index 929e5edcf925ce3e6ce385f527bad212a83b67b6..0000000000000000000000000000000000000000
--- a/conversations/conv_036086.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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-      "start_time": 15.046798975417095,
-      "speaker_id": "1714"
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1714/cough/0037.wav",
-      "duration": 1.2835870943770606,
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-      "duration": 0.42491857313977865,
-      "start_time": 31.575081426860223,
-      "speaker_id": "1714"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036096.json b/conversations/conv_036096.json
deleted file mode 100644
index 49efb6f42a5f24adafe88deddfa59d6e11de2dea..0000000000000000000000000000000000000000
--- a/conversations/conv_036096.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.781351036355193,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1343-139681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-139681.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.702286803440687,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-75365.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 75584
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-92820.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036097.json b/conversations/conv_036097.json
deleted file mode 100644
index e7f273862c9e9c4d39bb4165a6bcf4368310b7ff..0000000000000000000000000000000000000000
--- a/conversations/conv_036097.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "4824",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6072-67782.flac |",
-      "real_speaker_id": "6072",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4824-36048.flac |",
-      "real_speaker_id": "4824",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-      "start_time": 30.68,
-      "speaker_id": "6072"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036100.json b/conversations/conv_036100.json
deleted file mode 100644
index 2fe817f1d2e55da73736e5e80c54342f18a4eaab..0000000000000000000000000000000000000000
--- a/conversations/conv_036100.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_036107.json b/conversations/conv_036107.json
deleted file mode 100644
index cd7217945e5a30423ebc54168712bc7c87b9d89f..0000000000000000000000000000000000000000
--- a/conversations/conv_036107.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8544-281189",
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.00380349122006,
-      "speaker_id": "8544"
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-      "event_class": "cough",
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-      "duration": 0.5564182107971654,
-      "start_time": 15.32729421683503,
-      "speaker_id": "1265"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8544/cough/0038.wav",
-      "duration": 0.92,
-      "start_time": 26.60215477903067,
-      "speaker_id": "8544"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036111.json b/conversations/conv_036111.json
deleted file mode 100644
index ddc2f923a3f89e416b23b21873db6f589180441e..0000000000000000000000000000000000000000
--- a/conversations/conv_036111.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.727882053250866,
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-      "duration": 6.051817101201597,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
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-      "utterance_id": "4719-25765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 18.08751732787532,
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-      "overlap": true,
-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 55916
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.172103788380312,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.648296854794886,
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-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 124798
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.619308005829076,
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-      "duration": 0.3806919941709239,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 186406
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.04,
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-      "start_time": 26.197923012595833,
-      "speaker_id": "5000"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036116.json b/conversations/conv_036116.json
deleted file mode 100644
index 70d0e1936a909f7394198ab72cf07450a33ddaac..0000000000000000000000000000000000000000
--- a/conversations/conv_036116.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "380-129064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129064.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41995.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.883265884378059,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.891252108299607,
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-      "utterance_id": "6135-41995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41995.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 57824
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "5746-48362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 76999
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "6135"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036127.json b/conversations/conv_036127.json
deleted file mode 100644
index 9d86e62e2599b1ea368959bfad1fa32b590ac454..0000000000000000000000000000000000000000
--- a/conversations/conv_036127.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-87279.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-88761.flac |",
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-      "utterance_id": "7492-105653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-105653.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036131.json b/conversations/conv_036131.json
deleted file mode 100644
index bcfc563b6be7b1baf4363efc34304a24cedeb85e..0000000000000000000000000000000000000000
--- a/conversations/conv_036131.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "846-130985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/846-130985.flac |",
-      "real_speaker_id": "846",
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-    {
-      "segment_id": "seg0001",
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-    {
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-      "utterance_id": "846-130986",
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
-      "duration": 1.113119214320085,
-      "start_time": 30.25098094819721
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/846/laugh/0132.wav",
-      "duration": 1.04,
-      "start_time": 17.27259782896874,
-      "speaker_id": "846"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1383/laugh/0109.wav",
-      "duration": 1.24,
-      "start_time": 17.365827363592473,
-      "speaker_id": "1383"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1383/laugh/0043.wav",
-      "duration": 0.7653300111655998,
-      "start_time": 31.2346699888344,
-      "speaker_id": "1383"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036141.json b/conversations/conv_036141.json
deleted file mode 100644
index ea7a23f3b95d72e02c524ea0496cb7dcaa7201cf..0000000000000000000000000000000000000000
--- a/conversations/conv_036141.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.22260467774619,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.129625364487751,
-      "duration": 6.129625364487751,
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-      "overlap": false,
-      "utterance_id": "413-12292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-12292.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.806745730936899,
-      "end_time": 11.426588327010613,
-      "duration": 4.619842596073713,
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-      "utterance_id": "1769-143484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143484.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.697714530980456,
-      "end_time": 18.602076321002972,
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-      "duration_frames": 110469,
-      "overlap": false,
-      "utterance_id": "1769-143485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143485.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.72453262684011,
-      "end_time": 25.08673831360293,
-      "duration": 6.3622056867628185,
-      "start_frame": 299592,
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-      "overlap": true,
-      "utterance_id": "413-22436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22436.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.299354363905024,
-      "end_time": 31.22260467774619,
-      "duration": 5.923250313841164,
-      "start_frame": 404789,
-      "duration_frames": 94772,
-      "overlap": true,
-      "utterance_id": "1769-143484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143484.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 73917
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
-      "duration": 0.19673469387755102,
-      "start_time": 17.755418460817314
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
-      "duration": 4.842524159691667,
-      "start_time": 15.129703185079142
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1769/cough/0016.wav",
-      "duration": 1.12,
-      "start_time": 10.53869386579068,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1769/cough/0107.wav",
-      "duration": 0.8332563256400849,
-      "start_time": 24.382451712385162,
-      "speaker_id": "1769"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036146.json b/conversations/conv_036146.json
deleted file mode 100644
index 723b6de4c647b6400dad39f292e87a5238eb750c..0000000000000000000000000000000000000000
--- a/conversations/conv_036146.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.41544154952468,
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-      "utterance_id": "8324-286683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286683.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.5583861963857,
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-      "duration_frames": 75657,
-      "overlap": true,
-      "utterance_id": "8324-286682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286682.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.205746453943956,
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-      "overlap": false,
-      "utterance_id": "3008-164328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.821535718015266,
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-      "duration": 3.178464281984734,
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-      "utterance_id": "3008-164327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036150.json b/conversations/conv_036150.json
deleted file mode 100644
index 429aeb71e712e107315fd15f0b231e41d069116f..0000000000000000000000000000000000000000
--- a/conversations/conv_036150.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2671-157947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157947.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "612-121766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
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-    {
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-      "speaker_id": 1,
-      "start_time": 10.574542696717165,
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-      "overlap": false,
-      "utterance_id": "2671-157948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157948.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.18235100193543,
-      "end_time": 23.167361964771185,
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-      "duration_frames": 95760,
-      "overlap": false,
-      "utterance_id": "612-121766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 77285
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.322149655844687,
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-      "utterance_id": "2671-157946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157946.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.32178469746553,
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-      "duration": 4.678215302534468,
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-      "overlap": false,
-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036157.json b/conversations/conv_036157.json
deleted file mode 100644
index ad2732030044699dd809493bc714e8212130a0a1..0000000000000000000000000000000000000000
--- a/conversations/conv_036157.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "298-126791",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5635/laugh/0105.wav",
-      "duration": 1.16,
-      "start_time": 20.946119413127427,
-      "speaker_id": "5635"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8753/cough/0025.wav",
-      "duration": 0.5193872341686813,
-      "start_time": 29.58521455359191,
-      "speaker_id": "8753"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036166.json b/conversations/conv_036166.json
deleted file mode 100644
index 3e2b4566e38dec092413fd305db3771b7660413a..0000000000000000000000000000000000000000
--- a/conversations/conv_036166.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.954516406793879,
-      "duration": 3.954516406793879,
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-      "duration_frames": 63272,
-      "overlap": false,
-      "utterance_id": "8143-278206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278206.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.788351071966882,
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-      "duration_frames": 81217,
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-      "utterance_id": "5746-48362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.422156507199944,
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-      "overlap": false,
-      "utterance_id": "1901-147822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-147822.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.043945030397147,
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-      "utterance_id": "1901-147822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-147822.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 96273
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.845724922083484,
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-      "utterance_id": "5746-48362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 81217
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.609256884923305,
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-      "duration": 3.3907431150766953,
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-      "duration_frames": 54251,
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-      "utterance_id": "1901-147822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-147822.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 192412
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1901/laugh/0075.wav",
-      "duration": 0.7954985486143626,
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-      "event_class": "cough",
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-      "speaker_id": "5746"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036170.json b/conversations/conv_036170.json
deleted file mode 100644
index b9903fefb5754fd3350dbe9f072ac1c38c07dbb4..0000000000000000000000000000000000000000
--- a/conversations/conv_036170.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.8427297108058913,
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-      "utterance_id": "884-129800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.740209204410437,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 61483
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 171733
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "end_time": 26.326295633023193,
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-      "overlap": false,
-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.733214765306442,
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-      "utterance_id": "8058-99402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/884/cough/0103.wav",
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-    {
-      "event_class": "laugh",
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-      "start_time": 10.08587497000816,
-      "speaker_id": "884"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036185.json b/conversations/conv_036185.json
deleted file mode 100644
index 3caeb9a1b13ba5a815716793515f776829af4728..0000000000000000000000000000000000000000
--- a/conversations/conv_036185.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "8534",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 93506
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8534",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.631447998467873,
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-      "overlap": false,
-      "utterance_id": "4830-25898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4830-25898.flac |",
-      "real_speaker_id": "4830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.512486123559132,
-      "end_time": 32.0,
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-      "start_frame": 456199,
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-      "overlap": false,
-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 162434
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_14.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036189.json b/conversations/conv_036189.json
deleted file mode 100644
index c745f45b5c752ce2e0f93e22e7e0e77697047cda..0000000000000000000000000000000000000000
--- a/conversations/conv_036189.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6674-71396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6674-71396.flac |",
-      "real_speaker_id": "6674",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.756352416517656,
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-      "utterance_id": "1804-131525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-131525.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1804-170447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-170447.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7150",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036193.json b/conversations/conv_036193.json
deleted file mode 100644
index 600e1fe2e6bb9ef7876011b5d4c93a753752a265..0000000000000000000000000000000000000000
--- a/conversations/conv_036193.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.900484563745099,
-      "duration": 4.900484563745099,
-      "start_frame": 0,
-      "duration_frames": 78407,
-      "overlap": false,
-      "utterance_id": "5136-24633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-24633.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.687688951632756,
-      "end_time": 10.704115946255978,
-      "duration": 5.016426994623222,
-      "start_frame": 91003,
-      "duration_frames": 80262,
-      "overlap": false,
-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.38060632838555,
-      "end_time": 18.189835147834152,
-      "duration": 6.809228819448602,
-      "start_frame": 182089,
-      "duration_frames": 108947,
-      "overlap": false,
-      "utterance_id": "3989-182402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182402.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.461710729469957,
-      "end_time": 22.937665283732937,
-      "duration": 4.47595455426298,
-      "start_frame": 295387,
-      "duration_frames": 71615,
-      "overlap": false,
-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 80262
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.651091928617156,
-      "end_time": 28.7688421508484,
-      "duration": 5.117750222231245,
-      "start_frame": 378417,
-      "duration_frames": 81884,
-      "overlap": false,
-      "utterance_id": "3989-182402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182402.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 108947
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.257502973073564,
-      "end_time": 32.0,
-      "duration": 2.7424970269264364,
-      "start_frame": 468120,
-      "duration_frames": 43879,
-      "overlap": false,
-      "utterance_id": "3989-182402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182402.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 190831
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
-      "duration": 16.427215401073877,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
-      "duration": 0.16310657596371883,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3989/cough/0090.wav",
-      "duration": 1.0496400365462455,
-      "start_time": 18.209177637726775,
-      "speaker_id": "3989"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3989/laugh/0076.wav",
-      "duration": 0.9291398238231798,
-      "start_time": 31.07086017617682,
-      "speaker_id": "3989"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036202.json b/conversations/conv_036202.json
deleted file mode 100644
index 113adedddba8b6d33f6e357259b943135f6a3e73..0000000000000000000000000000000000000000
--- a/conversations/conv_036202.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.51064127418233,
-      "duration": 6.51064127418233,
-      "start_frame": 0,
-      "duration_frames": 104170,
-      "overlap": false,
-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.1331396176508015,
-      "end_time": 11.887837969832361,
-      "duration": 4.754698352181561,
-      "start_frame": 114130,
-      "duration_frames": 76075,
-      "overlap": false,
-      "utterance_id": "5133-80690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.995852170467703,
-      "end_time": 16.253423887206427,
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-      "duration_frames": 68121,
-      "overlap": false,
-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 104170
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration": 3.78312604101511,
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-      "overlap": true,
-      "utterance_id": "1161-135206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.06006937737125,
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-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 172291
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.091589989176903,
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-      "duration": 4.454492600124719,
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-      "duration_frames": 71271,
-      "overlap": false,
-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.889032355300785,
-      "end_time": 32.0,
-      "duration": 2.1109676446992154,
-      "start_frame": 478224,
-      "duration_frames": 33775,
-      "overlap": false,
-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 221139
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
-      "duration": 15.55204081632653,
-      "start_time": 5.373075202606229
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5133/laugh/0100.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1161/laugh/0044.wav",
-      "duration": 0.5512707197227905,
-      "start_time": 20.217992111808474,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1161/cough/0097.wav",
-      "duration": 0.7479975705050035,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/278/cough/0083.wav",
-      "duration": 1.397561172427708,
-      "start_time": 21.144228615292874,
-      "speaker_id": "278"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036214.json b/conversations/conv_036214.json
deleted file mode 100644
index 9b51e1917b297e044b6bf676746eb06f63500c5c..0000000000000000000000000000000000000000
--- a/conversations/conv_036214.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.654933171500741,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "517-121740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121740.flac |",
-      "real_speaker_id": "517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.189388614274832,
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-      "overlap": false,
-      "utterance_id": "6147-34606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34606.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.764570409885012,
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-      "overlap": true,
-      "utterance_id": "517-121744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121744.flac |",
-      "real_speaker_id": "517",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7011-66622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
-      "real_speaker_id": "7011",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "517",
-      "position_frames": 55289
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7011-66622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
-      "real_speaker_id": "7011",
-      "position_frames": 89945
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/517/cough/0103.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7011/laugh/0019.wav",
-      "duration": 1.44,
-      "start_time": 30.49045748581281,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036215.json b/conversations/conv_036215.json
deleted file mode 100644
index ff080d50156d9816990e92bc9d8072673d464180..0000000000000000000000000000000000000000
--- a/conversations/conv_036215.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "671-131030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
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-      "start_time": 0,
-      "speaker_id": "671"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
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-      "speaker_id": "2930"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/671/laugh/0010.wav",
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-      "start_time": 17.458023489924724,
-      "speaker_id": "671"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036218.json b/conversations/conv_036218.json
deleted file mode 100644
index f18e84ba0c9055970ef7d15932047405a5146df7..0000000000000000000000000000000000000000
--- a/conversations/conv_036218.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5914-52088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 6.330642886944644,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52087.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 0
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-      "start_time": 18.418252540529217,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4511-76322.flac |",
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-      "speaker_id": 0,
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-      "real_speaker_id": "5914",
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-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036222.json b/conversations/conv_036222.json
deleted file mode 100644
index e0edd85cac1f617e28cdd5e91cf0e7b0c0e9fdb1..0000000000000000000000000000000000000000
--- a/conversations/conv_036222.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7505-83618.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7881",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 105609
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
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-      "position_frames": 192185
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_036229.json b/conversations/conv_036229.json
deleted file mode 100644
index 7cadfd01dd75b5113db23a90f31700a0f457b4dc..0000000000000000000000000000000000000000
--- a/conversations/conv_036229.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147971.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_036234.json b/conversations/conv_036234.json
deleted file mode 100644
index a88de0f5eb52d7b4ccc86e115e790faf31a51223..0000000000000000000000000000000000000000
--- a/conversations/conv_036234.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-    {
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-      "duration": 2.236848072562358,
-      "start_time": 25.719954735056394
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6512/laugh/0125.wav",
-      "duration": 1.24,
-      "start_time": 14.898781690130084,
-      "speaker_id": "6512"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8401/laugh/0061.wav",
-      "duration": 1.3487218846442537,
-      "start_time": 16.84720162880312,
-      "speaker_id": "8401"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036238.json b/conversations/conv_036238.json
deleted file mode 100644
index f79869f56d55c62187c703af8630aea261892230..0000000000000000000000000000000000000000
--- a/conversations/conv_036238.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.026266336628972,
-      "duration": 5.026266336628972,
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-      "duration_frames": 80420,
-      "overlap": false,
-      "utterance_id": "8643-269254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-269254.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.375659755516375,
-      "end_time": 8.999272307312767,
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-      "utterance_id": "4495-10160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-10160.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.86847991543285,
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-      "utterance_id": "8643-269254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-269254.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 80420
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.503400631422144,
-      "end_time": 21.71415244189734,
-      "duration": 6.210751810475198,
-      "start_frame": 248054,
-      "duration_frames": 99372,
-      "overlap": false,
-      "utterance_id": "4495-10160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-10160.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 57977
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.74504943587986,
-      "end_time": 28.71274658751355,
-      "duration": 5.967697151633689,
-      "start_frame": 363920,
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-      "overlap": false,
-      "utterance_id": "8643-298549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-298549.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.238217783314873,
-      "end_time": 32.0,
-      "duration": 2.761782216685127,
-      "start_frame": 467811,
-      "duration_frames": 44188,
-      "overlap": false,
-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 16.31443071233036,
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "duration": 3.073673469387755,
-      "start_time": 27.579431015484722
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_036242.json b/conversations/conv_036242.json
deleted file mode 100644
index 57c58b66d204a83e6ae1ec76cb915d221a4251ba..0000000000000000000000000000000000000000
--- a/conversations/conv_036242.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.8664838013093643,
-      "duration": 3.8664838013093643,
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-      "overlap": false,
-      "utterance_id": "5321-8590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-8590.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.80281783174996,
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-      "duration": 6.9039831147094475,
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-      "utterance_id": "5321-53046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-53046.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 12.739370841986432,
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-      "overlap": false,
-      "utterance_id": "1296-134434",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-134434.flac |",
-      "real_speaker_id": "1296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.659047460421572,
-      "end_time": 24.087872327458122,
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-      "overlap": false,
-      "utterance_id": "6051-54421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6051-54421.flac |",
-      "real_speaker_id": "6051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.214109314981997,
-      "end_time": 30.90078198713757,
-      "duration": 6.686672672155575,
-      "start_frame": 387425,
-      "duration_frames": 106986,
-      "overlap": false,
-      "utterance_id": "5321-53046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-53046.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 110463
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.12401053898961,
-      "end_time": 32.0,
-      "duration": 0.8759894610103913,
-      "start_frame": 497984,
-      "duration_frames": 14015,
-      "overlap": false,
-      "utterance_id": "6051-54421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6051-54421.flac |",
-      "real_speaker_id": "6051",
-      "position_frames": 70861
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/432755.wav",
-      "duration": 0.2939909297052154,
-      "start_time": 27.1059580009299
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
-      "duration": 0.6519047619047619,
-      "start_time": 6.4083328110124285
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5321/cough/0082.wav",
-      "duration": 0.4959789913142027,
-      "start_time": 4.003293233137413,
-      "speaker_id": "5321"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6051/laugh/0076.wav",
-      "duration": 0.6429584065590944,
-      "start_time": 22.069101867135096,
-      "speaker_id": "6051"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036243.json b/conversations/conv_036243.json
deleted file mode 100644
index 4818fc2928972ae93f735962f2c62e60d0f0b27a..0000000000000000000000000000000000000000
--- a/conversations/conv_036243.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3171-68344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-68344.flac |",
-      "real_speaker_id": "3171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.085279062156729,
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-      "utterance_id": "1168-134958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.735304770623458,
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-      "duration_frames": 78416,
-      "overlap": false,
-      "utterance_id": "1168-134958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 72856
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.196068753991213,
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-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 75747
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.854268042011036,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 151272
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.286488618005883,
-      "end_time": 32.0,
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-      "utterance_id": "3171-7574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-7574.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1168/laugh/0104.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1168/cough/0097.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3171/cough/0073.wav",
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-      "speaker_id": "3171"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036255.json b/conversations/conv_036255.json
deleted file mode 100644
index 5e6d614f99d37cd694c3482b82cabec36635a988..0000000000000000000000000000000000000000
--- a/conversations/conv_036255.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4443-11591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4443-11591.flac |",
-      "real_speaker_id": "4443",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4853",
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-      "utterance_id": "7510-282528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282528.flac |",
-      "real_speaker_id": "7510",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282529.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.0503956930927028,
-      "start_time": 4.936225040356674
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4853/laugh/0037.wav",
-      "duration": 1.3086116195094744,
-      "start_time": 10.431227950440853,
-      "speaker_id": "4853"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7510/laugh/0004.wav",
-      "duration": 1.52,
-      "start_time": 12.540176374904496,
-      "speaker_id": "7510"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036259.json b/conversations/conv_036259.json
deleted file mode 100644
index b1469051d48afcb2d68f37028f2a2583112985f8..0000000000000000000000000000000000000000
--- a/conversations/conv_036259.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.772078759305614,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7248894857383883,
-      "duration": 3.7248894857383883,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "434-132650",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132650.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.433232674771001,
-      "end_time": 10.578239761815244,
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-      "duration_frames": 98320,
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-      "utterance_id": "127-129385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.220500084698623,
-      "end_time": 15.210529003927435,
-      "duration": 3.990028919228813,
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-      "duration_frames": 63840,
-      "overlap": false,
-      "utterance_id": "3172-166439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
-      "real_speaker_id": "3172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.983472768544654,
-      "end_time": 20.896551975784956,
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-      "start_frame": 255735,
-      "duration_frames": 78609,
-      "overlap": false,
-      "utterance_id": "434-132649",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132649.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.881728133178548,
-      "end_time": 26.876033954805877,
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-      "duration_frames": 79908,
-      "overlap": false,
-      "utterance_id": "3172-166439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
-      "real_speaker_id": "3172",
-      "position_frames": 63840
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.577720676171342,
-      "end_time": 31.772078759305614,
-      "duration": 4.194358083134272,
-      "start_frame": 441243,
-      "duration_frames": 67109,
-      "overlap": false,
-      "utterance_id": "434-132644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132644.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/127/laugh/0138.wav",
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3172/cough/0092.wav",
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-      "speaker_id": "3172"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3172/laugh/0063.wav",
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-      "start_time": 27.10829429099748,
-      "speaker_id": "3172"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036263.json b/conversations/conv_036263.json
deleted file mode 100644
index 8a0c25ac48117243f3eb6f59ed3554ffaea22bf4..0000000000000000000000000000000000000000
--- a/conversations/conv_036263.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.309684899776123,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 92728
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-      "segment_id": "seg0002",
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-      "utterance_id": "8240-116288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-116288.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.890266977639143,
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-      "duration_frames": 57270,
-      "overlap": false,
-      "utterance_id": "8240-283234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8240-283234.flac |",
-      "real_speaker_id": "8240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.736006554812203,
-      "end_time": 26.015657125106305,
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-      "duration_frames": 52474,
-      "overlap": false,
-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 182421
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
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-      "event_class": "Dishes",
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-      "speaker_id": "8404"
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\ No newline at end of file
diff --git a/conversations/conv_036268.json b/conversations/conv_036268.json
deleted file mode 100644
index 8d4e128865532daf105d0ddd9de97dcda4e3333e..0000000000000000000000000000000000000000
--- a/conversations/conv_036268.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2122-149350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
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-      "position_frames": 78548
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-      "real_speaker_id": "3370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.29660871508844,
-      "end_time": 26.114124367527683,
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-      "overlap": true,
-      "utterance_id": "3370-724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-724.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.148026293845767,
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-      "duration": 4.851973706154233,
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-      "utterance_id": "1726-142316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036275.json b/conversations/conv_036275.json
deleted file mode 100644
index 25bde29793e7ebff25a512701aec35f4bdf99ed1..0000000000000000000000000000000000000000
--- a/conversations/conv_036275.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1355-39947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.297133235981064,
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-      "utterance_id": "85-121551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
-      "real_speaker_id": "85",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
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-    {
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-      "real_speaker_id": "1806",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1355/cough/0070.wav",
-      "duration": 1.0,
-      "start_time": 6.717165129093244,
-      "speaker_id": "1355"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1355/laugh/0001.wav",
-      "duration": 0.705915562407285,
-      "start_time": 13.22269039142285,
-      "speaker_id": "1355"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1355/cough/0043.wav",
-      "duration": 1.08,
-      "start_time": 11.81513794439473,
-      "speaker_id": "1355"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1806/laugh/0002.wav",
-      "duration": 0.6273906297379976,
-      "start_time": 19.473965793375218,
-      "speaker_id": "1806"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036279.json b/conversations/conv_036279.json
deleted file mode 100644
index cee89080d2277b1e1fc4c40f454ddd34f076542e..0000000000000000000000000000000000000000
--- a/conversations/conv_036279.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.115446523908477,
-      "duration": 6.115446523908477,
-      "start_frame": 0,
-      "duration_frames": 97847,
-      "overlap": false,
-      "utterance_id": "6258-49755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
-      "real_speaker_id": "6258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.667663918240464,
-      "end_time": 12.450353771633015,
-      "duration": 5.782689853392551,
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-      "utterance_id": "3728-105398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105398.flac |",
-      "real_speaker_id": "3728",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.274480010719785,
-      "end_time": 19.54245960782653,
-      "duration": 6.267979597106745,
-      "start_frame": 212391,
-      "duration_frames": 100287,
-      "overlap": false,
-      "utterance_id": "6258-49755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
-      "real_speaker_id": "6258",
-      "position_frames": 97847
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.24874697828124,
-      "end_time": 25.250889286525457,
-      "duration": 5.002142308244216,
-      "start_frame": 323979,
-      "duration_frames": 80034,
-      "overlap": false,
-      "utterance_id": "3728-105398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105398.flac |",
-      "real_speaker_id": "3728",
-      "position_frames": 92523
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.866021859414968,
-      "end_time": 29.286401586978087,
-      "duration": 4.420379727563121,
-      "start_frame": 397856,
-      "duration_frames": 70726,
-      "overlap": true,
-      "utterance_id": "3728-105398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105398.flac |",
-      "real_speaker_id": "3728",
-      "position_frames": 172557
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.995547800433986,
-      "end_time": 32.0,
-      "duration": 2.004452199566014,
-      "start_frame": 479928,
-      "duration_frames": 32071,
-      "overlap": false,
-      "utterance_id": "3728-105386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105386.flac |",
-      "real_speaker_id": "3728",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 10.229810452258558,
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "6258"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3728/laugh/0010.wav",
-      "duration": 1.2190146378440088,
-      "start_time": 21.71286168088219,
-      "speaker_id": "3728"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3728/laugh/0008.wav",
-      "duration": 1.2,
-      "start_time": 23.368501410009248,
-      "speaker_id": "3728"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3728/laugh/0031.wav",
-      "duration": 1.36,
-      "start_time": 28.4736088920477,
-      "speaker_id": "3728"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036280.json b/conversations/conv_036280.json
deleted file mode 100644
index e6f32302cebbb98603f9547d1039c8e7241b9d2b..0000000000000000000000000000000000000000
--- a/conversations/conv_036280.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 75554,
-      "overlap": false,
-      "utterance_id": "6030-57827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57827.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.950918380029566,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-2327.flac |",
-      "real_speaker_id": "7085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8238-274553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-274553.flac |",
-      "real_speaker_id": "8238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.944020242429268,
-      "end_time": 18.326467475798133,
-      "duration": 3.382447233368863,
-      "start_frame": 239104,
-      "duration_frames": 54119,
-      "overlap": false,
-      "utterance_id": "6030-57826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57826.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.813080558340687,
-      "end_time": 22.131880412045437,
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-      "start_frame": 301009,
-      "duration_frames": 53100,
-      "overlap": false,
-      "utterance_id": "7085-75807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-75807.flac |",
-      "real_speaker_id": "7085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.680088000390207,
-      "end_time": 27.05265739268107,
-      "duration": 4.372569392290865,
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-      "duration_frames": 69961,
-      "overlap": false,
-      "utterance_id": "8238-283452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-283452.flac |",
-      "real_speaker_id": "8238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.39796500171075,
-      "end_time": 32.0,
-      "duration": 3.6020349982892483,
-      "start_frame": 454367,
-      "duration_frames": 57632,
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-      "utterance_id": "6030-57826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57826.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 54119
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8238/laugh/0122.wav",
-      "duration": 1.36,
-      "start_time": 14.833394773809797,
-      "speaker_id": "8238"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6030/cough/0061.wav",
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-      "start_time": 16.26461010845339,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7085/cough/0085.wav",
-      "duration": 1.368909275021455,
-      "start_time": 17.370317090846456,
-      "speaker_id": "7085"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036281.json b/conversations/conv_036281.json
deleted file mode 100644
index 94a279236d67f6477db718b15308d6a81f55abe8..0000000000000000000000000000000000000000
--- a/conversations/conv_036281.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 6.524645261070134,
-      "start_frame": 0,
-      "duration_frames": 104394,
-      "overlap": false,
-      "utterance_id": "1065-134611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134611.flac |",
-      "real_speaker_id": "1065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.978941267338245,
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-      "overlap": false,
-      "utterance_id": "613-128284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-128284.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "613-121900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-121900.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 22.002017268594816,
-      "end_time": 26.58577579206875,
-      "duration": 4.583758523473933,
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-      "duration_frames": 73340,
-      "overlap": false,
-      "utterance_id": "5126-36956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5126-36956.flac |",
-      "real_speaker_id": "5126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.482719038870826,
-      "end_time": 32.0,
-      "duration": 4.517280961129174,
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-      "duration_frames": 72276,
-      "overlap": false,
-      "utterance_id": "613-128284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-128284.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 106909
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.167398753281799,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/613/laugh/0093.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5126/laugh/0082.wav",
-      "duration": 1.16,
-      "start_time": 20.784793775449206,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/613/laugh/0107.wav",
-      "duration": 0.5920058217389506,
-      "start_time": 31.40799417826105,
-      "speaker_id": "613"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036287.json b/conversations/conv_036287.json
deleted file mode 100644
index 5149e7b034b221fa9b471b489a86e96471fca049..0000000000000000000000000000000000000000
--- a/conversations/conv_036287.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.5200382256815255,
-      "duration": 4.5200382256815255,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.60804997053105,
-      "end_time": 9.596604358564235,
-      "duration": 4.988554388033187,
-      "start_frame": 73728,
-      "duration_frames": 79816,
-      "overlap": true,
-      "utterance_id": "5118-111610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111610.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 84698,
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-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 72320
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58868.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 157018
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58868.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 107447
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
-      "duration": 0.3160770975056689,
-      "start_time": 15.607773786486028
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5118/laugh/0096.wav",
-      "duration": 1.2,
-      "start_time": 8.085958258470981,
-      "speaker_id": "5118"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7423/cough/0042.wav",
-      "duration": 0.8887326646915588,
-      "start_time": 11.526413309453815,
-      "speaker_id": "7423"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036291.json b/conversations/conv_036291.json
deleted file mode 100644
index e79146e0a23dc6da38107fac86b7c94c661ae2df..0000000000000000000000000000000000000000
--- a/conversations/conv_036291.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.760123894268919,
-      "duration": 4.760123894268919,
-      "start_frame": 0,
-      "duration_frames": 76161,
-      "overlap": false,
-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.074416094820941,
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-      "overlap": false,
-      "utterance_id": "6341-64956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6341-64956.flac |",
-      "real_speaker_id": "6341",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 76161
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.659290195849373,
-      "end_time": 20.786513496093107,
-      "duration": 4.1272233002437355,
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-      "duration_frames": 66035,
-      "overlap": false,
-      "utterance_id": "6341-64956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6341-64956.flac |",
-      "real_speaker_id": "6341",
-      "position_frames": 85770
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.319008557756863,
-      "end_time": 27.766640569915666,
-      "duration": 6.447632012158803,
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-      "duration_frames": 103162,
-      "overlap": false,
-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 151366
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.23863353215411,
-      "end_time": 32.0,
-      "duration": 3.761366467845889,
-      "start_frame": 451818,
-      "duration_frames": 60181,
-      "overlap": false,
-      "utterance_id": "6014-32886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32886.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
-      "duration": 0.19673469387755102,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 10.242964370190164,
-      "speaker_id": "3180"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6341"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3180/laugh/0086.wav",
-      "duration": 1.36,
-      "start_time": 19.921637624441413,
-      "speaker_id": "3180"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6014/laugh/0038.wav",
-      "duration": 0.8500764981316895,
-      "start_time": 27.24831589582223,
-      "speaker_id": "6014"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036296.json b/conversations/conv_036296.json
deleted file mode 100644
index 12ade1f5cde4ea22f98735dc17b1eec3c0ea4ae6..0000000000000000000000000000000000000000
--- a/conversations/conv_036296.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.135123257865191,
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-      "utterance_id": "4706-28495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28495.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1469-163403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-163403.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.357914605929547,
-      "end_time": 23.762365159421314,
-      "duration": 6.404450553491765,
-      "start_frame": 277726,
-      "duration_frames": 102471,
-      "overlap": false,
-      "utterance_id": "4706-28495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28495.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 85409
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.93466136296272,
-      "end_time": 29.418390012623924,
-      "duration": 4.483728649661202,
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-      "duration_frames": 71739,
-      "overlap": false,
-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 65810
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.546711647193717,
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-      "duration": 2.4532883528062825,
-      "start_frame": 472747,
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-      "overlap": false,
-      "utterance_id": "1469-163403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-163403.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 89397
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7416/cough/0013.wav",
-      "duration": 1.2871954559642784,
-      "start_time": 23.59097899307302,
-      "speaker_id": "7416"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036306.json b/conversations/conv_036306.json
deleted file mode 100644
index cc0e18a33f6ea85e33f28d277f34b7d131000715..0000000000000000000000000000000000000000
--- a/conversations/conv_036306.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4807-26852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26852.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.972047200052627,
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-      "duration": 3.731699911762778,
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-      "duration_frames": 59707,
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-      "utterance_id": "915-163369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163369.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "duration_frames": 92225,
-      "overlap": false,
-      "utterance_id": "915-163372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163372.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26853.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "915-163372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163372.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 92225
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.20983376788234,
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-      "duration": 0.7901662321176595,
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-      "duration_frames": 12642,
-      "overlap": false,
-      "utterance_id": "4807-26853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26853.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 96586
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "start_time": 6.632584562838178
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/915/laugh/0081.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/915/laugh/0073.wav",
-      "duration": 1.26,
-      "start_time": 13.805723876927868,
-      "speaker_id": "915"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/915/laugh/0037.wav",
-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "915"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4807/laugh/0042.wav",
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-      "start_time": 30.58749994350471,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4807/cough/0052.wav",
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-      "start_time": 31.49360426463968,
-      "speaker_id": "4807"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036307.json b/conversations/conv_036307.json
deleted file mode 100644
index d62f94e990a434a9ac2a93b7d6942a47eb57f0ad..0000000000000000000000000000000000000000
--- a/conversations/conv_036307.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.858565310035862,
-      "duration": 5.858565310035862,
-      "start_frame": 0,
-      "duration_frames": 93737,
-      "overlap": false,
-      "utterance_id": "1081-125237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-125237.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "duration_frames": 78444,
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-      "utterance_id": "1081-128618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "duration_frames": 52377,
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-      "utterance_id": "7327-96492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-96492.flac |",
-      "real_speaker_id": "7327",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1081-128618",
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-      "real_speaker_id": "1081",
-      "position_frames": 78444
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.776132878657965,
-      "end_time": 32.0,
-      "duration": 5.223867121342035,
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-      "duration_frames": 83581,
-      "overlap": false,
-      "utterance_id": "1081-128618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 157831
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
-      "duration": 15.412014033389053,
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
-      "duration": 2.556008600851326,
-      "start_time": 18.073430089718357
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_036310.json b/conversations/conv_036310.json
deleted file mode 100644
index 636750696144edd0fb72c87341a80bc681039c67..0000000000000000000000000000000000000000
--- a/conversations/conv_036310.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8759327213003933,
-      "duration": 3.8759327213003933,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "464-126832",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126832.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.4318656914132815,
-      "end_time": 8.47965404294224,
-      "duration": 4.047788351528958,
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-      "duration_frames": 64764,
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-      "utterance_id": "464-126832",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126832.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 62014
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.897176574743082,
-      "end_time": 15.207882460971728,
-      "duration": 6.310705886228647,
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-      "overlap": false,
-      "utterance_id": "464-126794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.364058728604007,
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-      "utterance_id": "7538-100045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.36757458319041,
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-      "overlap": false,
-      "utterance_id": "464-126794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 100971
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.31768129235712,
-      "end_time": 29.599662667764242,
-      "duration": 4.281981375407125,
-      "start_frame": 405082,
-      "duration_frames": 68511,
-      "overlap": true,
-      "utterance_id": "7538-100045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 74728
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.664880454692373,
-      "end_time": 32.0,
-      "duration": 1.3351195453076272,
-      "start_frame": 490638,
-      "duration_frames": 21361,
-      "overlap": false,
-      "utterance_id": "8576-300229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-300229.flac |",
-      "real_speaker_id": "8576",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
-      "duration": 0.9632426303854875,
-      "start_time": 20.649301586112887
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/464/cough/0033.wav",
-      "duration": 1.2,
-      "start_time": 15.221484487746299,
-      "speaker_id": "464"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7538/laugh/0035.wav",
-      "duration": 1.64,
-      "start_time": 16.589830942619198,
-      "speaker_id": "7538"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7538/laugh/0097.wav",
-      "duration": 1.24,
-      "start_time": 26.72101699276781,
-      "speaker_id": "7538"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8576/laugh/0043.wav",
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-      "speaker_id": "8576"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8576/cough/0009.wav",
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-      "start_time": 30.689584464461998,
-      "speaker_id": "8576"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036326.json b/conversations/conv_036326.json
deleted file mode 100644
index 72831cb9b4fc0adf5cd29a95b58cd85be81aa27b..0000000000000000000000000000000000000000
--- a/conversations/conv_036326.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.857172573785617,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.454590214990096,
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-      "overlap": false,
-      "utterance_id": "6251-63840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6251-63840.flac |",
-      "real_speaker_id": "6251",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1633-180292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-180292.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.6874085456241,
-      "end_time": 24.636453208317263,
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-      "overlap": false,
-      "utterance_id": "1633-141584",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-141584.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.259040618489397,
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-      "overlap": false,
-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 93714
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.68218258375687,
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-      "duration": 0.3178174162431304,
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-      "duration_frames": 5085,
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-      "utterance_id": "6251-94836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6251-94836.flac |",
-      "real_speaker_id": "6251",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/567/laugh/0019.wav",
-      "duration": 1.12,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 1.04,
-      "start_time": 24.885193462111076,
-      "speaker_id": "1633"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 23.904076289707845,
-      "speaker_id": "567"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/567/cough/0003.wav",
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-    {
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-      "duration": 0.8868067504384879,
-      "start_time": 31.113193249561512,
-      "speaker_id": "6251"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036330.json b/conversations/conv_036330.json
deleted file mode 100644
index 2d72c1844dc0142bae0fedb038ad9200861146e6..0000000000000000000000000000000000000000
--- a/conversations/conv_036330.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.85719018206045,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.05150694208324,
-      "duration": 6.05150694208324,
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-      "duration_frames": 96824,
-      "overlap": false,
-      "utterance_id": "3318-185499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-185499.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.939049751533947,
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-      "duration": 5.030106193556547,
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-      "duration_frames": 80481,
-      "overlap": false,
-      "utterance_id": "2110-161100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2110-161100.flac |",
-      "real_speaker_id": "2110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.60553360738116,
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-      "overlap": false,
-      "utterance_id": "3318-164981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164981.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.978421718759407,
-      "end_time": 25.74756683106387,
-      "duration": 5.7691451123044635,
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-      "duration_frames": 92306,
-      "overlap": false,
-      "utterance_id": "8226-274371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274371.flac |",
-      "real_speaker_id": "8226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.344767343296965,
-      "end_time": 31.85719018206045,
-      "duration": 5.512422838763485,
-      "start_frame": 421516,
-      "duration_frames": 88198,
-      "overlap": false,
-      "utterance_id": "3318-164984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164984.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
-      "duration": 0.837891156462585,
-      "start_time": 5.974580466759551
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3318/cough/0049.wav",
-      "duration": 1.02,
-      "start_time": 0,
-      "speaker_id": "3318"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2110/cough/0074.wav",
-      "duration": 0.4770671877088803,
-      "start_time": 6.282501470165233,
-      "speaker_id": "2110"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8226/laugh/0010.wav",
-      "duration": 1.28,
-      "start_time": 25.924258076383317,
-      "speaker_id": "8226"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3318/cough/0094.wav",
-      "duration": 0.43368387942062947,
-      "start_time": 31.56631612057937,
-      "speaker_id": "3318"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036347.json b/conversations/conv_036347.json
deleted file mode 100644
index 23d3c0ff3b483799d7a64177e49e4f8b7aa8de33..0000000000000000000000000000000000000000
--- a/conversations/conv_036347.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.012200535532496,
-      "duration": 6.012200535532496,
-      "start_frame": 0,
-      "duration_frames": 96195,
-      "overlap": false,
-      "utterance_id": "248-130697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130697.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.962515377168803,
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-      "duration_frames": 70204,
-      "overlap": false,
-      "utterance_id": "7463-96494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-96494.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.488968648752824,
-      "end_time": 18.4623730385058,
-      "duration": 6.973404389752975,
-      "start_frame": 183823,
-      "duration_frames": 111574,
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-      "utterance_id": "3271-169289",
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-      "real_speaker_id": "7463",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130697.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 96195
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.19705738142542,
-      "end_time": 32.0,
-      "duration": 0.8029426185745798,
-      "start_frame": 499152,
-      "duration_frames": 12847,
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-      "utterance_id": "7463-96494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-96494.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 70204
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
-      "duration": 4.785809053716559,
-      "start_time": 9.528804111153141
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "248"
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-    {
-      "event_class": "cough",
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-    {
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-      "duration": 1.2231716205432166,
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-      "speaker_id": "7463"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7463/laugh/0093.wav",
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-      "start_time": 31.355483520975035,
-      "speaker_id": "7463"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036350.json b/conversations/conv_036350.json
deleted file mode 100644
index b0ef55ddd7fa523d592e637f65b5c21f38cf9383..0000000000000000000000000000000000000000
--- a/conversations/conv_036350.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.0973231783706945,
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-      "start_frame": 0,
-      "duration_frames": 65557,
-      "overlap": false,
-      "utterance_id": "149-125760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125760.flac |",
-      "real_speaker_id": "149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.901911577053502,
-      "end_time": 8.451738579189666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125760.flac |",
-      "real_speaker_id": "149",
-      "position_frames": 65557
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125760.flac |",
-      "real_speaker_id": "149",
-      "position_frames": 122354
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 12.932620781514508,
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-      "overlap": false,
-      "utterance_id": "1679-142280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1679-142280.flac |",
-      "real_speaker_id": "1679",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 16.025004835747364,
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-      "overlap": true,
-      "utterance_id": "149-125750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125750.flac |",
-      "real_speaker_id": "149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.705283408540232,
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-      "start_frame": 363284,
-      "duration_frames": 74227,
-      "overlap": true,
-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.350021268749895,
-      "end_time": 32.0,
-      "duration": 3.649978731250105,
-      "start_frame": 453600,
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-      "utterance_id": "1679-142287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1679-142287.flac |",
-      "real_speaker_id": "1679",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_8.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1679/cough/0092.wav",
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-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "1679"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036351.json b/conversations/conv_036351.json
deleted file mode 100644
index a43374a757aff28780cc9dd0735364f47199511f..0000000000000000000000000000000000000000
--- a/conversations/conv_036351.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.050419532082853,
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-      "duration_frames": 48806,
-      "overlap": false,
-      "utterance_id": "7796-269970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7796-269970.flac |",
-      "real_speaker_id": "7796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.210480969460853,
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-      "duration_frames": 56538,
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-      "utterance_id": "4397-15666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15666.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4397-15666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15666.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 56538
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 88129,
-      "overlap": false,
-      "utterance_id": "7437-99249",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-99249.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.660488101642304,
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-      "start_frame": 330567,
-      "duration_frames": 68764,
-      "overlap": false,
-      "utterance_id": "7437-99249",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-99249.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 88129
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.66542331474215,
-      "end_time": 29.319384526348482,
-      "duration": 3.653961211606334,
-      "start_frame": 410646,
-      "duration_frames": 58463,
-      "overlap": false,
-      "utterance_id": "4397-15666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15666.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 153986
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.190595662324686,
-      "end_time": 32.0,
-      "duration": 1.8094043376753142,
-      "start_frame": 483049,
-      "duration_frames": 28950,
-      "overlap": false,
-      "utterance_id": "7796-269970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7796-269970.flac |",
-      "real_speaker_id": "7796",
-      "position_frames": 48806
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
-      "duration": 2.2962666088813144,
-      "start_time": 10.948581560144603
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7796/laugh/0129.wav",
-      "duration": 1.36,
-      "start_time": 3.105433657076656,
-      "speaker_id": "7796"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4397/cough/0038.wav",
-      "duration": 0.6596649044112469,
-      "start_time": 7.9414905647632095,
-      "speaker_id": "4397"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7437/laugh/0080.wav",
-      "duration": 0.9663530055223788,
-      "start_time": 17.926301159810393,
-      "speaker_id": "7437"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036367.json b/conversations/conv_036367.json
deleted file mode 100644
index be2681d410962eba6691b7e2e7af2d32b09b6dcc..0000000000000000000000000000000000000000
--- a/conversations/conv_036367.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.09143558834767,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.744426460005209,
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-      "duration_frames": 91910,
-      "overlap": false,
-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.062576619692502,
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-      "duration": 4.92702383052821,
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-      "utterance_id": "2319-138656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138656.flac |",
-      "real_speaker_id": "2319",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.135259491365959,
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-      "start_frame": 178164,
-      "duration_frames": 71782,
-      "overlap": false,
-      "utterance_id": "6188-78885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-78885.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.58831818856773,
-      "end_time": 21.35083133513512,
-      "duration": 4.76251314656739,
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-      "duration_frames": 76200,
-      "overlap": false,
-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 91910
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.918422193265247,
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-      "duration": 5.428212015189942,
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-      "utterance_id": "2319-138631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138631.flac |",
-      "real_speaker_id": "2319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.804242255786257,
-      "end_time": 31.09143558834767,
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-      "start_frame": 428867,
-      "duration_frames": 68595,
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-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 168110
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-      "start_time": 11.570123080260432
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6188/laugh/0005.wav",
-      "duration": 1.0571048198307043,
-      "start_time": 9.91128327647106,
-      "speaker_id": "6188"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036371.json b/conversations/conv_036371.json
deleted file mode 100644
index 1a6c2173f6b5b12f07c233c6a7fd3bce5db9ba42..0000000000000000000000000000000000000000
--- a/conversations/conv_036371.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
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\ No newline at end of file
diff --git a/conversations/conv_036383.json b/conversations/conv_036383.json
deleted file mode 100644
index b7d63cb659c1a45aeffe443766f6cdda4ceae2d1..0000000000000000000000000000000000000000
--- a/conversations/conv_036383.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_036384.json b/conversations/conv_036384.json
deleted file mode 100644
index 5f87e2f757403e9d55bba47ae19c0f95de9b535f..0000000000000000000000000000000000000000
--- a/conversations/conv_036384.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_036388.json b/conversations/conv_036388.json
deleted file mode 100644
index 5ba11ba1da1e42eb23658c643fccf1e80221e003..0000000000000000000000000000000000000000
--- a/conversations/conv_036388.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 2,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7065/laugh/0015.wav",
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-      "speaker_id": "7065"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7065/laugh/0032.wav",
-      "duration": 1.36,
-      "start_time": 22.008255238938368,
-      "speaker_id": "7065"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7065/cough/0087.wav",
-      "duration": 1.28,
-      "start_time": 22.867353241382848,
-      "speaker_id": "7065"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7065/laugh/0055.wav",
-      "duration": 0.7826443170884139,
-      "start_time": 31.217355682911585,
-      "speaker_id": "7065"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036392.json b/conversations/conv_036392.json
deleted file mode 100644
index 1ef43cd8420f1713ff385c7e3b2ae9ef9ab95ea0..0000000000000000000000000000000000000000
--- a/conversations/conv_036392.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.594518659352294,
-      "duration": 6.594518659352294,
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-      "overlap": false,
-      "utterance_id": "2208-10076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.150903118776645,
-      "end_time": 11.177612598462808,
-      "duration": 4.026709479686162,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291967.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 11.629820961639346,
-      "end_time": 16.544465647604145,
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-      "overlap": false,
-      "utterance_id": "2208-11020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.907495506849735,
-      "end_time": 23.229827632343394,
-      "duration": 6.322332125493659,
-      "start_frame": 270519,
-      "duration_frames": 101157,
-      "overlap": false,
-      "utterance_id": "1367-291967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291967.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 64427
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.83887987299965,
-      "end_time": 28.067008843197705,
-      "duration": 4.228128970198054,
-      "start_frame": 381422,
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-      "overlap": false,
-      "utterance_id": "2208-11020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 78634
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.477752526624844,
-      "end_time": 32.0,
-      "duration": 3.522247473375156,
-      "start_frame": 455644,
-      "duration_frames": 56355,
-      "overlap": false,
-      "utterance_id": "1367-291931",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291931.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.48,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1367/cough/0107.wav",
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-      "speaker_id": "1367"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2208/laugh/0027.wav",
-      "duration": 1.48,
-      "start_time": 12.33805510448698,
-      "speaker_id": "2208"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2208/cough/0027.wav",
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-      "speaker_id": "2208"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_036395.json b/conversations/conv_036395.json
deleted file mode 100644
index afc3db1994009501b5d22af56263b5eaacd5e972..0000000000000000000000000000000000000000
--- a/conversations/conv_036395.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2010-147045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-147045.flac |",
-      "real_speaker_id": "2010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.205193950150482,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8630-305213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305213.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.799957900319104,
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-      "duration": 6.120270275709009,
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-      "overlap": false,
-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 95340
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.389492264106913,
-      "end_time": 30.33601157409563,
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-      "duration_frames": 79144,
-      "overlap": false,
-      "utterance_id": "8630-305213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305213.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 79090
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.96206774614102,
-      "end_time": 32.0,
-      "duration": 1.0379322538589797,
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-      "overlap": false,
-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 193264
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
-      "duration": 0.22993197278911565,
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036403.json b/conversations/conv_036403.json
deleted file mode 100644
index bb0d222c6e81e105994d0299131ad0b6ee97109a..0000000000000000000000000000000000000000
--- a/conversations/conv_036403.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7756-84187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-84187.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-165387.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 0
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-    {
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-      "start_time": 11.207107881049012,
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-      "utterance_id": "7756-114724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-114724.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3889-130125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-130125.flac |",
-      "real_speaker_id": "3889",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-88761.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 28.427074422887564,
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-      "duration": 3.5729255771124357,
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-      "duration_frames": 57166,
-      "overlap": false,
-      "utterance_id": "7756-84187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-84187.flac |",
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-      "position_frames": 98839
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-    {
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-    {
-      "event_class": "laugh",
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-      "start_time": 31.07624563652265,
-      "speaker_id": "7756"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036404.json b/conversations/conv_036404.json
deleted file mode 100644
index 55a1bb07da1a22381ddef9d1522060edbc74222d..0000000000000000000000000000000000000000
--- a/conversations/conv_036404.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.352569508689066,
-      "duration": 6.352569508689066,
-      "start_frame": 0,
-      "duration_frames": 101641,
-      "overlap": false,
-      "utterance_id": "5700-44605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-44605.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-44605.flac |",
-      "real_speaker_id": "5700",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5985-300208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-300208.flac |",
-      "real_speaker_id": "5985",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51758.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 16.287550019998115,
-      "speaker_id": "5700"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5700/laugh/0102.wav",
-      "duration": 1.1689852794688382,
-      "start_time": 30.83101472053116,
-      "speaker_id": "5700"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036408.json b/conversations/conv_036408.json
deleted file mode 100644
index e1997f475d6a318125c3cd092e1571a92026cc4e..0000000000000000000000000000000000000000
--- a/conversations/conv_036408.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.61593088025828,
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-      "utterance_id": "4872-20426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20426.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.43211432497428,
-      "end_time": 10.207097684431675,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
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-      "utterance_id": "4872-20425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.948219607010717,
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-      "utterance_id": "4872-20425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 94900
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.694586993865247,
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-      "overlap": false,
-      "utterance_id": "1926-143879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-143879.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.59024916132014,
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-      "duration": 3.4097508386798587,
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-      "duration_frames": 54556,
-      "overlap": false,
-      "utterance_id": "4872-20425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 179503
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1926/laugh/0074.wav",
-      "duration": 0.6602565962811693,
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-}
\ No newline at end of file
diff --git a/conversations/conv_036412.json b/conversations/conv_036412.json
deleted file mode 100644
index c72a8620790409d7f6026bcdc22610a53be5b71f..0000000000000000000000000000000000000000
--- a/conversations/conv_036412.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "446-123502",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123502.flac |",
-      "real_speaker_id": "446",
-      "position_frames": 0
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-      "start_time": 4.335786212426422,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
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-      "overlap": false,
-      "utterance_id": "92-204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-204.flac |",
-      "real_speaker_id": "92",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.85404867398303,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 93424
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.809183364961,
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-      "utterance_id": "446-123502",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123502.flac |",
-      "real_speaker_id": "446",
-      "position_frames": 57438
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.155070049373336,
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-      "duration": 3.844929950626664,
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-      "duration_frames": 61518,
-      "overlap": false,
-      "utterance_id": "92-6488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
-      "real_speaker_id": "92",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "event_class": "laugh",
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-      "duration": 1.2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_036415.json b/conversations/conv_036415.json
deleted file mode 100644
index 5b8a1349397e882f337a1bdb7697fda346d296d9..0000000000000000000000000000000000000000
--- a/conversations/conv_036415.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6924-291609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-291609.flac |",
-      "real_speaker_id": "6924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7991",
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.350831643215772,
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-      "utterance_id": "6924-114452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6924-114452.flac |",
-      "real_speaker_id": "6924",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7991-102381.flac |",
-      "real_speaker_id": "7991",
-      "position_frames": 55989
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1705-142318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
-      "real_speaker_id": "1705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7991-102381",
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-      "real_speaker_id": "7991",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036424.json b/conversations/conv_036424.json
deleted file mode 100644
index a4b1416fe88e319083fbb7157d5f9a16b6ce4af4..0000000000000000000000000000000000000000
--- a/conversations/conv_036424.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8250-286289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-286289.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "7263",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-286289.flac |",
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-      "position_frames": 98123
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-    {
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-      "utterance_id": "8075-279233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279233.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 92850
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.370017577656277,
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-      "duration": 1.6299824223437227,
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-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 92616
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8250/laugh/0129.wav",
-      "duration": 0.6297800503125239,
-      "start_time": 18.13179430112306,
-      "speaker_id": "8250"
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-      "event_class": "cough",
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-      "duration": 1.4949160326847108,
-      "start_time": 16.34690132904679,
-      "speaker_id": "8075"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036428.json b/conversations/conv_036428.json
deleted file mode 100644
index bbf1f99591fcf23c0d0de057a0b8232fbc5236ef..0000000000000000000000000000000000000000
--- a/conversations/conv_036428.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4973-24514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-24514.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.406436895569581,
-      "end_time": 9.927012048601094,
-      "duration": 3.5205751530315124,
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-      "duration_frames": 56329,
-      "overlap": false,
-      "utterance_id": "107-22885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22885.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.363590708448442,
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-      "overlap": false,
-      "utterance_id": "6251-94836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6251-94836.flac |",
-      "real_speaker_id": "6251",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.631724364216836,
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-      "duration": 6.820972527021672,
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-      "overlap": false,
-      "utterance_id": "107-22885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22885.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 56329
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.934684403163303,
-      "end_time": 28.326489712348025,
-      "duration": 4.391805309184722,
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-      "overlap": false,
-      "utterance_id": "107-22885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22885.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 165464
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.535457540855237,
-      "end_time": 32.0,
-      "duration": 2.464542459144763,
-      "start_frame": 472567,
-      "duration_frames": 39432,
-      "overlap": false,
-      "utterance_id": "4973-44575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-44575.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-      "start_time": 11.552379606292947
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "duration": 1.16,
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-      "duration": 1.04,
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-      "speaker_id": "4973"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036429.json b/conversations/conv_036429.json
deleted file mode 100644
index 19fe461dbc1c74d5c193936aab228988db0b26f3..0000000000000000000000000000000000000000
--- a/conversations/conv_036429.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.279991827947512,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.343189027380882,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 110903
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 0
-    },
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-      "real_speaker_id": "4420",
-      "position_frames": 181987
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 64709
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "475-124999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124999.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7113/laugh/0103.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4420/laugh/0063.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/475/laugh/0091.wav",
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-      "start_time": 24.995826316093705,
-      "speaker_id": "475"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036432.json b/conversations/conv_036432.json
deleted file mode 100644
index b65cc64ee24ab9012ab8d01573f1335ba08410b3..0000000000000000000000000000000000000000
--- a/conversations/conv_036432.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "5189-37999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-37999.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6437-66172.flac |",
-      "real_speaker_id": "6437",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123516.flac |",
-      "real_speaker_id": "302",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "302",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "5189",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.851560977865667,
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-      "position_frames": 129316
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_036439.json b/conversations/conv_036439.json
deleted file mode 100644
index 944efcd56242d82113b8adfa496c8d152707907b..0000000000000000000000000000000000000000
--- a/conversations/conv_036439.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.73668545097521,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "7825",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7825-258970.flac |",
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-      "utterance_id": "6167-73972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-73972.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.31912194396915,
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-      "utterance_id": "7825-258978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7825-258978.flac |",
-      "real_speaker_id": "7825",
-      "position_frames": 60423
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Cat",
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-      "start_time": 5.928548075598901,
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "7825"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036442.json b/conversations/conv_036442.json
deleted file mode 100644
index c11f56449e5d90924bca54e0e4a89cc88c73f0b5..0000000000000000000000000000000000000000
--- a/conversations/conv_036442.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.429885252524909,
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-      "utterance_id": "7559-96246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "real_speaker_id": "6807",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 86878
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.24356884979048,
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-      "utterance_id": "7559-96246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 182491
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7559-96246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 287911
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.135735365413726,
-      "end_time": 32.0,
-      "duration": 2.8642646345862737,
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-      "overlap": false,
-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036445.json b/conversations/conv_036445.json
deleted file mode 100644
index f1d2c3347e0e28bd1a948625778fb1cc9ea8f977..0000000000000000000000000000000000000000
--- a/conversations/conv_036445.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39653.flac |",
-      "real_speaker_id": "6418",
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-      "position_frames": 0
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-      "real_speaker_id": "4719",
-      "position_frames": 0
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-      "real_speaker_id": "6418",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.98955470755192,
-      "end_time": 26.319398277644012,
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-      "overlap": false,
-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 68033
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39654.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036449.json b/conversations/conv_036449.json
deleted file mode 100644
index 56e67404d273bf00b9422a414109285c76b43d4c..0000000000000000000000000000000000000000
--- a/conversations/conv_036449.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 64452
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-110067.flac |",
-      "real_speaker_id": "8071",
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-      "segment_id": "seg0003",
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-    {
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-      "real_speaker_id": "8071",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8071-114972",
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-  ],
-  "background_events": [
-    {
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-    {
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-      "speaker_id": "8071"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036453.json b/conversations/conv_036453.json
deleted file mode 100644
index b10e4b682de87600325c7a80591e6dd132f137d1..0000000000000000000000000000000000000000
--- a/conversations/conv_036453.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.382315247728526,
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-      "position_frames": 109272
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-    {
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-  "foreground_events": [
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-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_036454.json b/conversations/conv_036454.json
deleted file mode 100644
index 26d9a2938579b047412b670a8c834b7e4ce432df..0000000000000000000000000000000000000000
--- a/conversations/conv_036454.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "264",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
-      "position_frames": 202830
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_036465.json b/conversations/conv_036465.json
deleted file mode 100644
index 3ac0c7690db8252dbae901e161246302fb65bb22..0000000000000000000000000000000000000000
--- a/conversations/conv_036465.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-}
\ No newline at end of file
diff --git a/conversations/conv_036469.json b/conversations/conv_036469.json
deleted file mode 100644
index 85f9d3b144b37736b7182d07ca175dc723f457f8..0000000000000000000000000000000000000000
--- a/conversations/conv_036469.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_036473.json b/conversations/conv_036473.json
deleted file mode 100644
index 4a98c9d81b1173931e8431a731ca2a1db29e9bf2..0000000000000000000000000000000000000000
--- a/conversations/conv_036473.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.059384617029688,
-      "duration": 6.059384617029688,
-      "start_frame": 0,
-      "duration_frames": 96950,
-      "overlap": false,
-      "utterance_id": "3467-166570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166570.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.72881603362743,
-      "end_time": 12.717400016058582,
-      "duration": 5.988583982431152,
-      "start_frame": 107661,
-      "duration_frames": 95817,
-      "overlap": false,
-      "utterance_id": "3467-166572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166572.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.38592900470973,
-      "end_time": 18.62530305043761,
-      "duration": 5.239374045727878,
-      "start_frame": 214174,
-      "duration_frames": 83829,
-      "overlap": false,
-      "utterance_id": "753-150477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-150477.flac |",
-      "real_speaker_id": "753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.49418558180567,
-      "end_time": 27.067493778780992,
-      "duration": 6.573308196975321,
-      "start_frame": 327906,
-      "duration_frames": 105172,
-      "overlap": false,
-      "utterance_id": "7540-101258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101258.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.762240737383937,
-      "end_time": 32.0,
-      "duration": 4.237759262616063,
-      "start_frame": 444195,
-      "duration_frames": 67804,
-      "overlap": false,
-      "utterance_id": "3467-166570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166570.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 96950
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.274004201252209,
-      "start_time": 14.636555832887831
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.344828984457908,
-      "start_time": 4.711470304449262
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3467/laugh/0010.wav",
-      "duration": 1.48,
-      "start_time": 2.5436215945334437,
-      "speaker_id": "3467"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3467/cough/0132.wav",
-      "duration": 0.5598322872140091,
-      "start_time": 6.215887543036224,
-      "speaker_id": "3467"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036486.json b/conversations/conv_036486.json
deleted file mode 100644
index 79ebf9c879b53514df971c96ee2c73d6563fb3f9..0000000000000000000000000000000000000000
--- a/conversations/conv_036486.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.61053490473947,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.212276344471845,
-      "duration": 5.212276344471845,
-      "start_frame": 0,
-      "duration_frames": 83396,
-      "overlap": false,
-      "utterance_id": "31-121970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121970.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.726870019894954,
-      "end_time": 10.823545558411814,
-      "duration": 6.09667553851686,
-      "start_frame": 75629,
-      "duration_frames": 97546,
-      "overlap": true,
-      "utterance_id": "31-121971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121971.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.45640002585736,
-      "end_time": 17.51205188467673,
-      "duration": 5.055651858819371,
-      "start_frame": 199302,
-      "duration_frames": 80890,
-      "overlap": false,
-      "utterance_id": "6643-67858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6643-67858.flac |",
-      "real_speaker_id": "6643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.886712035945436,
-      "end_time": 21.056568553477682,
-      "duration": 3.1698565175322457,
-      "start_frame": 286187,
-      "duration_frames": 50717,
-      "overlap": false,
-      "utterance_id": "6505-231836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6505-231836.flac |",
-      "real_speaker_id": "6505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.523329296100044,
-      "end_time": 25.568089050430853,
-      "duration": 4.0447597543308085,
-      "start_frame": 344373,
-      "duration_frames": 64716,
-      "overlap": false,
-      "utterance_id": "31-121969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121969.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.246422523987242,
-      "end_time": 31.61053490473947,
-      "duration": 5.364112380752229,
-      "start_frame": 419942,
-      "duration_frames": 85825,
-      "overlap": false,
-      "utterance_id": "6505-231838",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6505-231838.flac |",
-      "real_speaker_id": "6505",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
-      "duration": 1.2095691609977324,
-      "start_time": 23.00775049412542
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/31/laugh/0040.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "31"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6643/laugh/0056.wav",
-      "duration": 1.4,
-      "start_time": 14.744233516680639,
-      "speaker_id": "6643"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/31/laugh/0054.wav",
-      "duration": 0.6122921835898318,
-      "start_time": 20.810154462956493,
-      "speaker_id": "31"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/31/cough/0070.wav",
-      "duration": 1.2,
-      "start_time": 25.67896455217451,
-      "speaker_id": "31"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036490.json b/conversations/conv_036490.json
deleted file mode 100644
index 5b9a25fb7378a713e4b44fa5185de79af212e914..0000000000000000000000000000000000000000
--- a/conversations/conv_036490.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.9326090491876275,
-      "duration": 5.9326090491876275,
-      "start_frame": 0,
-      "duration_frames": 94921,
-      "overlap": false,
-      "utterance_id": "8490-284268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284268.flac |",
-      "real_speaker_id": "8490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.140707027824451,
-      "end_time": 11.404584828619914,
-      "duration": 5.263877800795463,
-      "start_frame": 98251,
-      "duration_frames": 84222,
-      "overlap": false,
-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.51789015385372,
-      "end_time": 17.211815821057634,
-      "duration": 5.693925667203913,
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-      "duration_frames": 91102,
-      "overlap": true,
-      "utterance_id": "8490-284268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284268.flac |",
-      "real_speaker_id": "8490",
-      "position_frames": 94921
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.457670846904776,
-      "end_time": 23.90770610680891,
-      "duration": 5.450035259904134,
-      "start_frame": 295322,
-      "duration_frames": 87200,
-      "overlap": false,
-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 84222
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.121037631019725,
-      "end_time": 28.455259671249443,
-      "duration": 4.334222040229718,
-      "start_frame": 385936,
-      "duration_frames": 69347,
-      "overlap": false,
-      "utterance_id": "8490-284268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284268.flac |",
-      "real_speaker_id": "8490",
-      "position_frames": 186023
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.687803415529675,
-      "end_time": 32.0,
-      "duration": 3.3121965844703247,
-      "start_frame": 459004,
-      "duration_frames": 52995,
-      "overlap": false,
-      "utterance_id": "8490-284268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8490-284268.flac |",
-      "real_speaker_id": "8490",
-      "position_frames": 255370
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
-      "duration": 2.2772295328041343,
-      "start_time": 27.553196178482832
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5000/laugh/0019.wav",
-      "duration": 1.0345016659843824,
-      "start_time": 11.513636372180956,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8490/cough/0083.wav",
-      "duration": 0.69026465888542,
-      "start_time": 28.51333551667446,
-      "speaker_id": "8490"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036491.json b/conversations/conv_036491.json
deleted file mode 100644
index d5f977f93af27758fa36529dcb60a2f9efbeb1ea..0000000000000000000000000000000000000000
--- a/conversations/conv_036491.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.231611124292829,
-      "duration": 4.231611124292829,
-      "start_frame": 0,
-      "duration_frames": 67705,
-      "overlap": false,
-      "utterance_id": "217-122443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/217-122443.flac |",
-      "real_speaker_id": "217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.596627501620138,
-      "end_time": 9.314617221202088,
-      "duration": 4.717989719581949,
-      "start_frame": 73546,
-      "duration_frames": 75487,
-      "overlap": false,
-      "utterance_id": "2067-143536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.734919606114204,
-      "end_time": 16.1426912073078,
-      "duration": 6.407771601193596,
-      "start_frame": 155758,
-      "duration_frames": 102524,
-      "overlap": false,
-      "utterance_id": "217-122443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/217-122443.flac |",
-      "real_speaker_id": "217",
-      "position_frames": 67705
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.821295006603954,
-      "end_time": 20.575248128541755,
-      "duration": 3.753953121937802,
-      "start_frame": 269140,
-      "duration_frames": 60063,
-      "overlap": false,
-      "utterance_id": "2067-143536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 75487
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.423432233192337,
-      "end_time": 25.452699154602517,
-      "duration": 4.029266921410179,
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-      "overlap": false,
-      "utterance_id": "5076-287393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-287393.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.272006834471558,
-      "end_time": 32.0,
-      "duration": 5.727993165528442,
-      "start_frame": 420352,
-      "duration_frames": 91647,
-      "overlap": false,
-      "utterance_id": "2067-143536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 135550
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/217/cough/0061.wav",
-      "duration": 1.3629353644061108,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/217/cough/0011.wav",
-      "duration": 0.34501667962573973,
-      "start_time": 14.088940840056996,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2067/cough/0114.wav",
-      "duration": 0.3687968183746628,
-      "start_time": 16.406456338761267,
-      "speaker_id": "2067"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5076/laugh/0055.wav",
-      "duration": 1.16,
-      "start_time": 24.01690035169259,
-      "speaker_id": "5076"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036500.json b/conversations/conv_036500.json
deleted file mode 100644
index 3d98e399b021a44597b72a5c410f9ddc2003c1c3..0000000000000000000000000000000000000000
--- a/conversations/conv_036500.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.453225939465298,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_036507.json b/conversations/conv_036507.json
deleted file mode 100644
index 2041362d1e9b83848ea109af6793db70a9c9bc9b..0000000000000000000000000000000000000000
--- a/conversations/conv_036507.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_036511.json b/conversations/conv_036511.json
deleted file mode 100644
index 0a85270b1165c912257471fa675ce14b387a29d2..0000000000000000000000000000000000000000
--- a/conversations/conv_036511.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_036516.json b/conversations/conv_036516.json
deleted file mode 100644
index c897d58bae9101dd77fa455bcd3bdc0d3222dc2a..0000000000000000000000000000000000000000
--- a/conversations/conv_036516.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8324/laugh/0050.wav",
-      "duration": 1.3776039071001898,
-      "start_time": 24.60987178935338,
-      "speaker_id": "8324"
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-    {
-      "event_class": "cough",
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-      "start_time": 25.20523735972687,
-      "speaker_id": "8324"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036520.json b/conversations/conv_036520.json
deleted file mode 100644
index df0e35dc92d29b4bd66b0f9684cd42af53b9296c..0000000000000000000000000000000000000000
--- a/conversations/conv_036520.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.205839860675634,
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-      "overlap": false,
-      "utterance_id": "1226-141279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.6144946537315654,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244445.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "utterance_id": "1226-141268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141268.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 14.983066095031885,
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-      "overlap": false,
-      "utterance_id": "5776-46889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5776-46889.flac |",
-      "real_speaker_id": "5776",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.19300838200985,
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-      "utterance_id": "1226-141270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141270.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.913362254906666,
-      "end_time": 29.66641580937319,
-      "duration": 4.753053554466525,
-      "start_frame": 398613,
-      "duration_frames": 76048,
-      "overlap": false,
-      "utterance_id": "1226-141279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 51293
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.29927049000414,
-      "end_time": 32.0,
-      "duration": 1.7007295099958597,
-      "start_frame": 484788,
-      "duration_frames": 27211,
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-      "utterance_id": "8346-244446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244446.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5776/laugh/0006.wav",
-      "duration": 1.26,
-      "start_time": 19.5829956539201,
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-      "speaker_id": "1226"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036536.json b/conversations/conv_036536.json
deleted file mode 100644
index 2cf76b22dc8c9aaab9b28a3d4b6dbf509b1816b7..0000000000000000000000000000000000000000
--- a/conversations/conv_036536.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.3657944744815,
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-      "utterance_id": "2494-156018",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156018.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.468747295309873,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122442.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 13.030637540864795,
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-      "overlap": false,
-      "utterance_id": "2494-156018",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156018.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 101852
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.116894129219148,
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-      "overlap": false,
-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.195109508550114,
-      "end_time": 28.563541540494143,
-      "duration": 3.3684320319440286,
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-      "overlap": false,
-      "utterance_id": "2494-156014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156014.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.20333071209286,
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-      "duration": 2.7966692879071395,
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-      "overlap": false,
-      "utterance_id": "211-122442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122442.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 70803
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/211/laugh/0044.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2494/laugh/0034.wav",
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-      "start_time": 27.402732570210887,
-      "speaker_id": "2494"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036541.json b/conversations/conv_036541.json
deleted file mode 100644
index ce9dc96fb34f1e9c34454bc5e600583c102e5ea0..0000000000000000000000000000000000000000
--- a/conversations/conv_036541.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1767-142941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142941.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-36146.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142944.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-36146.flac |",
-      "real_speaker_id": "2149",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.777942155185464,
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-      "utterance_id": "1767-142932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142932.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2149-8912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-8912.flac |",
-      "real_speaker_id": "2149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142944.flac |",
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-      "position_frames": 65836
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1767/laugh/0078.wav",
-      "duration": 1.08,
-      "start_time": 12.141446231282632,
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "start_time": 31.05819296718362,
-      "speaker_id": "1767"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036546.json b/conversations/conv_036546.json
deleted file mode 100644
index 8b1da1e6c899e33376bd430d31d986df5b1e8850..0000000000000000000000000000000000000000
--- a/conversations/conv_036546.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.970522172169165,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-51153.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.490577052962711,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-2148.flac |",
-      "real_speaker_id": "2133",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-2148.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-139230.flac |",
-      "real_speaker_id": "1084",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-145077.flac |",
-      "real_speaker_id": "1084",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-66357.flac |",
-      "real_speaker_id": "5796",
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-      "duration": 1.08,
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-      "speaker_id": "5796"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036550.json b/conversations/conv_036550.json
deleted file mode 100644
index 87c46d5188b34f5f9a9f49b70493abc42dcb0fcc..0000000000000000000000000000000000000000
--- a/conversations/conv_036550.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "82-122859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-129805.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-121544.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48830.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-121544.flac |",
-      "real_speaker_id": "82",
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-      "segment_id": "seg0005",
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-      "utterance_id": "82-122859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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\ No newline at end of file
diff --git a/conversations/conv_036557.json b/conversations/conv_036557.json
deleted file mode 100644
index 233f7f615a0a8ba34fd94436f291e82b24e574a9..0000000000000000000000000000000000000000
--- a/conversations/conv_036557.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8088-284756.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
-      "position_frames": 98680
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8088-284756.flac |",
-      "real_speaker_id": "8088",
-      "position_frames": 95957
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6531-61334.flac |",
-      "real_speaker_id": "6531",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036561.json b/conversations/conv_036561.json
deleted file mode 100644
index 8417e848456df4ef41ee38095e3a3ad86b438b9f..0000000000000000000000000000000000000000
--- a/conversations/conv_036561.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-53497.flac |",
-      "real_speaker_id": "5826",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-53497.flac |",
-      "real_speaker_id": "5826",
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-      "utterance_id": "8771-294523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5826",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-53497.flac |",
-      "real_speaker_id": "5826",
-      "position_frames": 170367
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-    {
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-      "real_speaker_id": "6701",
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\ No newline at end of file
diff --git a/conversations/conv_036577.json b/conversations/conv_036577.json
deleted file mode 100644
index 0af5b74a2869889601fdda3e1688cbb77d085ce8..0000000000000000000000000000000000000000
--- a/conversations/conv_036577.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8479-276730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "4455",
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-      "position_frames": 96121
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-    {
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-      "real_speaker_id": "8479",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-14896.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 153852
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "8479"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036582.json b/conversations/conv_036582.json
deleted file mode 100644
index f899982c6c5fcc33ced2159473ce946ff11b07cb..0000000000000000000000000000000000000000
--- a/conversations/conv_036582.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3381-9921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.112757201363543,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256224.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.850400641827598,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-136054.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.109199010726485,
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-      "utterance_id": "3381-9921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
-      "position_frames": 189010
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-  "background_events": [
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_036583.json b/conversations/conv_036583.json
deleted file mode 100644
index 3006a0723f149a5201828b729e1ebc85933575c7..0000000000000000000000000000000000000000
--- a/conversations/conv_036583.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
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-      "real_speaker_id": "3242",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_036593.json b/conversations/conv_036593.json
deleted file mode 100644
index 5bdef17f0392493beaf80a080437085469fba562..0000000000000000000000000000000000000000
--- a/conversations/conv_036593.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "7780",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_036594.json b/conversations/conv_036594.json
deleted file mode 100644
index de1e54ce6d7aab7c517ce9ad3c6ee990cf80310f..0000000000000000000000000000000000000000
--- a/conversations/conv_036594.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7926/laugh/0052.wav",
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-      "start_time": 16.52677235926825,
-      "speaker_id": "7926"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7926/laugh/0035.wav",
-      "duration": 1.0671387533018757,
-      "start_time": 21.550702191190933,
-      "speaker_id": "7926"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5293/laugh/0018.wav",
-      "duration": 0.9948253697492692,
-      "start_time": 28.571466306452923,
-      "speaker_id": "5293"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036598.json b/conversations/conv_036598.json
deleted file mode 100644
index 99c6dff35cf498c8db4a89600d7059462130c664..0000000000000000000000000000000000000000
--- a/conversations/conv_036598.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.183177368967144,
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-      "overlap": false,
-      "utterance_id": "1061-146197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-146197.flac |",
-      "real_speaker_id": "1061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.855894843606443,
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-      "utterance_id": "7705-101580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101580.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1195-135814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-135814.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.277790709772894,
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-      "utterance_id": "1061-142358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-142358.flac |",
-      "real_speaker_id": "1061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.928237213192915,
-      "end_time": 30.260226520850672,
-      "duration": 6.331989307657759,
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-      "overlap": false,
-      "utterance_id": "7705-101579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101579.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.118170129733844,
-      "end_time": 32.0,
-      "duration": 0.8818298702661558,
-      "start_frame": 497890,
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-      "overlap": false,
-      "utterance_id": "1061-142358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-142358.flac |",
-      "real_speaker_id": "1061",
-      "position_frames": 85773
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1195/cough/0088.wav",
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-      "speaker_id": "1061"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036605.json b/conversations/conv_036605.json
deleted file mode 100644
index dae87c5bfec9fdb29ae41b18ea8b0d8cc8000ac9..0000000000000000000000000000000000000000
--- a/conversations/conv_036605.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "226-131532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/226-131532.flac |",
-      "real_speaker_id": "226",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-125137.flac |",
-      "real_speaker_id": "978",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/226-122538.flac |",
-      "real_speaker_id": "226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.813943270410523,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-125137.flac |",
-      "real_speaker_id": "978",
-      "position_frames": 86332
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.427449144906486,
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-      "overlap": false,
-      "utterance_id": "5172-29468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 99759
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-      "duration": 1.2,
-      "start_time": 27.32966163996406,
-      "speaker_id": "5172"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036609.json b/conversations/conv_036609.json
deleted file mode 100644
index bc6f69cadd55733b99ac31ec1a9674ee5b80e8e3..0000000000000000000000000000000000000000
--- a/conversations/conv_036609.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "175-127696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-127696.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
-      "real_speaker_id": "831",
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-      "utterance_id": "4930-20046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 75614
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.446596639171304,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 103726
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 1.5982584951932672,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-123036.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-      "event_class": "cough",
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-      "speaker_id": "4930"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036612.json b/conversations/conv_036612.json
deleted file mode 100644
index 00d8c676687ab8e00013a00dbe4121d112d2a082..0000000000000000000000000000000000000000
--- a/conversations/conv_036612.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.34820300302758,
-      "duration": 3.34820300302758,
-      "start_frame": 0,
-      "duration_frames": 53571,
-      "overlap": false,
-      "utterance_id": "6709-74041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6709-74041.flac |",
-      "real_speaker_id": "6709",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.152373449603575,
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-      "duration": 3.1716267673591103,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156154.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "6709-74047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6709-74047.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-      "position_frames": 0
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-      "real_speaker_id": "6709",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156154.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_036613.json b/conversations/conv_036613.json
deleted file mode 100644
index f1b9934ffdb09b02e2587ae8a5ea5517a8584328..0000000000000000000000000000000000000000
--- a/conversations/conv_036613.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "5002-70998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-70998.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6794-73984.flac |",
-      "real_speaker_id": "6794",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 14.80906508876906,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-70998.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 70463
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 76184
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.472060376905812,
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-      "duration": 5.527939623094188,
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-      "utterance_id": "5002-72876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-72876.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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\ No newline at end of file
diff --git a/conversations/conv_036625.json b/conversations/conv_036625.json
deleted file mode 100644
index 157633df00008e4c38188fcdc68b174602060cfe..0000000000000000000000000000000000000000
--- a/conversations/conv_036625.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "2960-155152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 91205
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155151.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036629.json b/conversations/conv_036629.json
deleted file mode 100644
index 3c2a955a76c18d4fa40a24180e6ca2c3d2cda75e..0000000000000000000000000000000000000000
--- a/conversations/conv_036629.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 0
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-      "position_frames": 0
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-    {
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-      "position_frames": 88676
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036633.json b/conversations/conv_036633.json
deleted file mode 100644
index 2aaa6917761190d8ad83a4431c0fd9398a5ebfb9..0000000000000000000000000000000000000000
--- a/conversations/conv_036633.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_036638.json b/conversations/conv_036638.json
deleted file mode 100644
index 3e8aa38dead510046d93890634f36e8470916fae..0000000000000000000000000000000000000000
--- a/conversations/conv_036638.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8499-256275.flac |",
-      "real_speaker_id": "8499",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
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-      "real_speaker_id": "1665",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_036644.json b/conversations/conv_036644.json
deleted file mode 100644
index c6baa0e4e8b28c337e68df0012b732f81a1a24ac..0000000000000000000000000000000000000000
--- a/conversations/conv_036644.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
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-      "real_speaker_id": "122",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-121734.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_036645.json b/conversations/conv_036645.json
deleted file mode 100644
index 7ab49f366be8bfa22ca71cca21571f407cbccf79..0000000000000000000000000000000000000000
--- a/conversations/conv_036645.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_036648.json b/conversations/conv_036648.json
deleted file mode 100644
index a0ce272ff5ded4823d67ad9faa78a7820dd95c14..0000000000000000000000000000000000000000
--- a/conversations/conv_036648.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-291168.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_036652.json b/conversations/conv_036652.json
deleted file mode 100644
index 2dc4bdbeb8354f625811c13b013b88af760847f4..0000000000000000000000000000000000000000
--- a/conversations/conv_036652.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 0
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-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/727-124443.flac |",
-      "real_speaker_id": "727",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 174262
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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\ No newline at end of file
diff --git a/conversations/conv_036664.json b/conversations/conv_036664.json
deleted file mode 100644
index c51c9bfee705cd9bf96572924315aadd9d6f02ad..0000000000000000000000000000000000000000
--- a/conversations/conv_036664.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-134419.flac |",
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-      "real_speaker_id": "3647",
-      "position_frames": 145242
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036668.json b/conversations/conv_036668.json
deleted file mode 100644
index f017d22cf7dfe83eee9d27ed51941259c591141a..0000000000000000000000000000000000000000
--- a/conversations/conv_036668.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.152981914340575,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-92814.flac |",
-      "real_speaker_id": "1025",
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-      "real_speaker_id": "2143",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036672.json b/conversations/conv_036672.json
deleted file mode 100644
index cbdb6273b2c16239c7c979f6709bbbd2112f860c..0000000000000000000000000000000000000000
--- a/conversations/conv_036672.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5840-54188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54188.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-252341.flac |",
-      "real_speaker_id": "7495",
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-      "utterance_id": "7495-252342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-252342.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-125880.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.472096705915888,
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-      "duration": 0.527903294084112,
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-      "utterance_id": "5840-54193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54193.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 30.48,
-      "speaker_id": "402"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/402/cough/0015.wav",
-      "duration": 0.8342718110221328,
-      "start_time": 31.165728188977866,
-      "speaker_id": "402"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5840/laugh/0030.wav",
-      "duration": 0.9580883764315054,
-      "start_time": 30.436186653387306,
-      "speaker_id": "5840"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036679.json b/conversations/conv_036679.json
deleted file mode 100644
index 84ca5a9f4021bb67513afe9a25e26c5a17d1fb2c..0000000000000000000000000000000000000000
--- a/conversations/conv_036679.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.500356013501339,
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-      "duration_frames": 104005,
-      "overlap": false,
-      "utterance_id": "956-157879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.138224524042341,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-300225.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "956-127932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.811375269921562,
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-      "overlap": false,
-      "utterance_id": "5985-63885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-63885.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.048851685019983,
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-      "overlap": false,
-      "utterance_id": "6368-39664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-39664.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.814860132656893,
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-      "duration": 2.185139867343107,
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-      "utterance_id": "956-157879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 104005
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.4,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/956/cough/0063.wav",
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-      "speaker_id": "5985"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036680.json b/conversations/conv_036680.json
deleted file mode 100644
index a321930c2d32a55d905a28110c572c6498ab8f5c..0000000000000000000000000000000000000000
--- a/conversations/conv_036680.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3054-128242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "7205-64112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7205-64112.flac |",
-      "real_speaker_id": "7205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.77764994518609,
-      "end_time": 22.93703166761822,
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-      "start_frame": 284442,
-      "duration_frames": 82550,
-      "overlap": false,
-      "utterance_id": "3054-128245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128245.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.371222585455957,
-      "end_time": 28.80205579782635,
-      "duration": 5.430833212370392,
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-      "overlap": false,
-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 90189
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.819966439667226,
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-      "duration": 2.180033560332774,
-      "start_frame": 477119,
-      "duration_frames": 34880,
-      "overlap": false,
-      "utterance_id": "3054-128245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128245.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 82550
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7205/laugh/0087.wav",
-      "duration": 1.156072034040038,
-      "start_time": 9.493764920530905,
-      "speaker_id": "7205"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036687.json b/conversations/conv_036687.json
deleted file mode 100644
index 4384726e1d6e4e5cfb483ac8b832fdfcb5765138..0000000000000000000000000000000000000000
--- a/conversations/conv_036687.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.975703717196325,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "duration": 3.5487850477524514,
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-      "overlap": false,
-      "utterance_id": "119-129515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129515.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.725483459915328,
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-      "utterance_id": "7073-114963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.522176155779919,
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-      "duration_frames": 101709,
-      "overlap": false,
-      "utterance_id": "119-129515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129515.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 56780
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.420268600128388,
-      "end_time": 25.89959281630191,
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-      "utterance_id": "119-129513",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129513.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4214-7146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "start_time": 3.7659364816829926,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7073/laugh/0077.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0221819259574274,
-      "start_time": 25.948576571826262,
-      "speaker_id": "119"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036691.json b/conversations/conv_036691.json
deleted file mode 100644
index a82fbaa530e4f599db993e4637561fd55ae7cba4..0000000000000000000000000000000000000000
--- a/conversations/conv_036691.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.617265105448155,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "real_speaker_id": "217",
-      "position_frames": 85027
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-      "duration": 1.12,
-      "start_time": 22.30014756865944,
-      "speaker_id": "1446"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036696.json b/conversations/conv_036696.json
deleted file mode 100644
index f7dad958905b5c92afde8fc65cdd37f7837262eb..0000000000000000000000000000000000000000
--- a/conversations/conv_036696.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "6993-83606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83606.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 0
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-      "start_time": 4.915020089743063,
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-      "utterance_id": "6993-83606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83606.flac |",
-      "real_speaker_id": "6993",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3521-7591.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-107621.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83607.flac |",
-      "real_speaker_id": "6993",
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-    },
-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_036700.json b/conversations/conv_036700.json
deleted file mode 100644
index 9c766390a9fa3290bf49e18780e0b2de206efd88..0000000000000000000000000000000000000000
--- a/conversations/conv_036700.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "2364",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/159-121902.flac |",
-      "real_speaker_id": "159",
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 95156
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.0191121734267,
-      "end_time": 32.0,
-      "duration": 5.980887826573301,
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-      "overlap": false,
-      "utterance_id": "4872-20425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 86770
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/159/laugh/0073.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2364/laugh/0034.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036701.json b/conversations/conv_036701.json
deleted file mode 100644
index ac3e5524b9ce2a71e9504c865915de2047cac51d..0000000000000000000000000000000000000000
--- a/conversations/conv_036701.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.274415675723237,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "7302-86814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86814.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 94326
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "7302",
-      "position_frames": 81935
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.50159540581012,
-      "end_time": 28.08715690692062,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 186506
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5390-24512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-24512.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "duration": 0.88,
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-      "speaker_id": "7302"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036717.json b/conversations/conv_036717.json
deleted file mode 100644
index b26debd544775961aaf53fc1f5679c629e182e94..0000000000000000000000000000000000000000
--- a/conversations/conv_036717.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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\ No newline at end of file
diff --git a/conversations/conv_036721.json b/conversations/conv_036721.json
deleted file mode 100644
index 96fbd20d3a7bce644f48ec64c2054891bd8bb070..0000000000000000000000000000000000000000
--- a/conversations/conv_036721.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.47100745136479,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-187738.flac |",
-      "real_speaker_id": "4234",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_036737.json b/conversations/conv_036737.json
deleted file mode 100644
index 6ad9004295ec31847882bdb3f793088d16395e23..0000000000000000000000000000000000000000
--- a/conversations/conv_036737.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5400",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_036740.json b/conversations/conv_036740.json
deleted file mode 100644
index 33cc766fa29956a93fee52ce114c3198aba13d47..0000000000000000000000000000000000000000
--- a/conversations/conv_036740.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
-      "real_speaker_id": "4958",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "4447",
-      "position_frames": 0
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-      "real_speaker_id": "4958",
-      "position_frames": 96441
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
-      "real_speaker_id": "4958",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036756.json b/conversations/conv_036756.json
deleted file mode 100644
index 3a82a8dee461b6d6164116c5fe3df4c27951491e..0000000000000000000000000000000000000000
--- a/conversations/conv_036756.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_036757.json b/conversations/conv_036757.json
deleted file mode 100644
index ad0a2057a40b9e21f883737b9a4498fd84722890..0000000000000000000000000000000000000000
--- a/conversations/conv_036757.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_036760.json b/conversations/conv_036760.json
deleted file mode 100644
index 266894c01d7b4268699b840c318a89818e35cb38..0000000000000000000000000000000000000000
--- a/conversations/conv_036760.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
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\ No newline at end of file
diff --git a/conversations/conv_036776.json b/conversations/conv_036776.json
deleted file mode 100644
index 3c7c33e413fc6fe3bf2b3d4fa47b91eb9282a383..0000000000000000000000000000000000000000
--- a/conversations/conv_036776.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "duration": 1.3334109362023954,
-      "start_time": 28.377207154641052,
-      "speaker_id": "6051"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036783.json b/conversations/conv_036783.json
deleted file mode 100644
index 87ed227b145ea35c54513038eabbb044cb790583..0000000000000000000000000000000000000000
--- a/conversations/conv_036783.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.936615785922522,
-      "duration": 4.936615785922522,
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-      "overlap": false,
-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.335200535371511,
-      "end_time": 10.831993382282977,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-129752.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.418665723657217,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 166933
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.51619738697838,
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-      "utterance_id": "122-121730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-121730.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.03603070552748,
-      "end_time": 28.97052241806619,
-      "duration": 3.934491712538709,
-      "start_frame": 400576,
-      "duration_frames": 62951,
-      "overlap": true,
-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 222202
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.68878683126747,
-      "end_time": 32.0,
-      "duration": 2.311213168732529,
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-      "duration_frames": 36979,
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-      "utterance_id": "122-129752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-129752.flac |",
-      "real_speaker_id": "122",
-      "position_frames": 77731
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
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-      "start_time": 26.78970687493767
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3092/laugh/0102.wav",
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-      "speaker_id": "3092"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036784.json b/conversations/conv_036784.json
deleted file mode 100644
index 28f66c83c55f67dee61c51ef96a5a1794c1c188e..0000000000000000000000000000000000000000
--- a/conversations/conv_036784.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7062-96512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-96512.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.647030319701397,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
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-      "overlap": true,
-      "utterance_id": "7062-80029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-80029.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5172-29468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5172-29468.flac |",
-      "real_speaker_id": "5172",
-      "position_frames": 169490
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.62257743620087,
-      "end_time": 32.0,
-      "duration": 2.3774225637991293,
-      "start_frame": 473961,
-      "duration_frames": 38038,
-      "overlap": false,
-      "utterance_id": "7062-96512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-96512.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 95108
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 0,
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-    {
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-    {
-      "event_class": "laugh",
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-    {
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-      "speaker_id": "7062"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036792.json b/conversations/conv_036792.json
deleted file mode 100644
index cc681a4e3dad4b773a6d9425155c0f68f025cfb9..0000000000000000000000000000000000000000
--- a/conversations/conv_036792.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
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-      "real_speaker_id": "2518",
-      "position_frames": 0
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-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "83-3054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
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-      "speaker_id": "83"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036794.json b/conversations/conv_036794.json
deleted file mode 100644
index 04d34e18729a4a43d2aadcc1b8783c159d23d45d..0000000000000000000000000000000000000000
--- a/conversations/conv_036794.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8747-293952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
-      "position_frames": 0
-    },
-    {
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-  "foreground_events": [
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-      "speaker_id": "2010"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036795.json b/conversations/conv_036795.json
deleted file mode 100644
index 06d9c6c0c28cfe1498d8ec0c7d06bdce563a8c0b..0000000000000000000000000000000000000000
--- a/conversations/conv_036795.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "3054-128244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
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-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 69573
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281514.flac |",
-      "real_speaker_id": "8172",
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-    {
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-      "speaker_id": 0,
-      "start_time": 26.78090955676592,
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-      "utterance_id": "7933-113273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-113273.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_036799.json b/conversations/conv_036799.json
deleted file mode 100644
index da623af32698543c1cc92d31371df1b2c5deea31..0000000000000000000000000000000000000000
--- a/conversations/conv_036799.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
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-      "real_speaker_id": "1472",
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-      "speaker_id": "7923"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036803.json b/conversations/conv_036803.json
deleted file mode 100644
index 6a55bde647b57b444d06db27547d5e9a96ef8b16..0000000000000000000000000000000000000000
--- a/conversations/conv_036803.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.44810423088481,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5831-98684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-98684.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036804.json b/conversations/conv_036804.json
deleted file mode 100644
index a663663b695a7dbcfb7319b6bbed3d857b516846..0000000000000000000000000000000000000000
--- a/conversations/conv_036804.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-104988.flac |",
-      "real_speaker_id": "7320",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036808.json b/conversations/conv_036808.json
deleted file mode 100644
index 4cd8a2d0c5ec1c4081c99f24540c9f3ae2d0c1dd..0000000000000000000000000000000000000000
--- a/conversations/conv_036808.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.74705660961378,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1088-134318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134318.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.951143599877413,
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-      "utterance_id": "1815-143388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143388.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 9.839258154618534,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.264537886388503,
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-      "utterance_id": "1815-143381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143381.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.738437699769385,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 86034
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-  ],
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_036812.json b/conversations/conv_036812.json
deleted file mode 100644
index a42ed6488840c1fb5437f0b60e333b5f1d5fd609..0000000000000000000000000000000000000000
--- a/conversations/conv_036812.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118726.flac |",
-      "real_speaker_id": "8087",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8722-296473.flac |",
-      "real_speaker_id": "8722",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118174.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.385565252164184,
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-      "utterance_id": "8722-296473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8722-296473.flac |",
-      "real_speaker_id": "8722",
-      "position_frames": 52893
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24747.flac |",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_036815.json b/conversations/conv_036815.json
deleted file mode 100644
index 54f2c0ba4ef5b85a5c0420dbb27593e1794f7f0b..0000000000000000000000000000000000000000
--- a/conversations/conv_036815.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.402159043423538,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2229-152842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152842.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152842.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 15.762664150441857,
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-      "utterance_id": "2775-160958",
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-74179.flac |",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_036824.json b/conversations/conv_036824.json
deleted file mode 100644
index 6f905ca8518f53b84be8c62592e3adeb00ad22af..0000000000000000000000000000000000000000
--- a/conversations/conv_036824.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.165722359405642,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98202.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7688-109656",
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\ No newline at end of file
diff --git a/conversations/conv_036828.json b/conversations/conv_036828.json
deleted file mode 100644
index d786164536bb2112a17c72b602b35bfae832bad3..0000000000000000000000000000000000000000
--- a/conversations/conv_036828.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/255-121534.flac |",
-      "real_speaker_id": "255",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_036832.json b/conversations/conv_036832.json
deleted file mode 100644
index c11403395701fd94012b2b26f14eb5ccf55adc41..0000000000000000000000000000000000000000
--- a/conversations/conv_036832.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "8799",
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-      "speaker_id": "8799"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036842.json b/conversations/conv_036842.json
deleted file mode 100644
index 34bac5b6857b6e21fffd34e7393666c569912b20..0000000000000000000000000000000000000000
--- a/conversations/conv_036842.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138113.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "5439",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036845.json b/conversations/conv_036845.json
deleted file mode 100644
index 24ac6082b210273a44335817a74d44e6f9a4e8fd..0000000000000000000000000000000000000000
--- a/conversations/conv_036845.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_036849.json b/conversations/conv_036849.json
deleted file mode 100644
index f79719980818066c40da982c85baf4e34aa0ddac..0000000000000000000000000000000000000000
--- a/conversations/conv_036849.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-      "real_speaker_id": "3094",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_036853.json b/conversations/conv_036853.json
deleted file mode 100644
index 232a991766aeaa0a91756ce3b928c3b941dafb62..0000000000000000000000000000000000000000
--- a/conversations/conv_036853.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036854.json b/conversations/conv_036854.json
deleted file mode 100644
index d94c2d1e51b3e822ca47c8cf9ed8d1d5d2bbccbe..0000000000000000000000000000000000000000
--- a/conversations/conv_036854.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036865.json b/conversations/conv_036865.json
deleted file mode 100644
index ef5b4ffec2cdddf5332682b69835f7b7d1812550..0000000000000000000000000000000000000000
--- a/conversations/conv_036865.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_036869.json b/conversations/conv_036869.json
deleted file mode 100644
index 559127aabdc30a6b0bde716177be9ea48c470146..0000000000000000000000000000000000000000
--- a/conversations/conv_036869.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.01400888248648,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "2624-88360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_036873.json b/conversations/conv_036873.json
deleted file mode 100644
index a222d78961ea88dd97b7a3ae9d88cd31fc1e1925..0000000000000000000000000000000000000000
--- a/conversations/conv_036873.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47241.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_036886.json b/conversations/conv_036886.json
deleted file mode 100644
index 001045f1ed68f0a58a4d087620dd77b9bf82fae9..0000000000000000000000000000000000000000
--- a/conversations/conv_036886.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295756.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-28005.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_036890.json b/conversations/conv_036890.json
deleted file mode 100644
index 90a8460c12b13f36828be9077d8d710aea2930ed..0000000000000000000000000000000000000000
--- a/conversations/conv_036890.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-296395.flac |",
-      "real_speaker_id": "8057",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "start_time": 27.020449601997854,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 199505
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.998733153929635,
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-      "utterance_id": "7478-98645",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98645.flac |",
-      "real_speaker_id": "7478",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/232915.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1987/laugh/0089.wav",
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-      "start_time": 0,
-      "speaker_id": "1987"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.7477650071542473,
-      "start_time": 12.288200208637765,
-      "speaker_id": "1987"
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-      "event_class": "cough",
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-      "duration": 1.036078306517474,
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-      "speaker_id": "8057"
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\ No newline at end of file
diff --git a/conversations/conv_036900.json b/conversations/conv_036900.json
deleted file mode 100644
index e41baa153030952ea6e0ea5fc3f50964934ca52c..0000000000000000000000000000000000000000
--- a/conversations/conv_036900.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3977-87547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-87547.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.419054334842999,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185466.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1365-134830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134830.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.890769422393673,
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-      "utterance_id": "3977-185457",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185457.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.475134828383037,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185457.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 95486
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.6474146851998093,
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-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "5239"
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-}
\ No newline at end of file
diff --git a/conversations/conv_036907.json b/conversations/conv_036907.json
deleted file mode 100644
index d2a45be8f06a852a0e982b099f469502f1892680..0000000000000000000000000000000000000000
--- a/conversations/conv_036907.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127193.flac |",
-      "real_speaker_id": "766",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126112.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127193.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 66785
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-      "utterance_id": "7754-105383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-105383.flac |",
-      "real_speaker_id": "7754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126112.flac |",
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-      "real_speaker_id": "7754",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036911.json b/conversations/conv_036911.json
deleted file mode 100644
index 4170ffc3e07e6a7be23d183cc4e91993b55f1762..0000000000000000000000000000000000000000
--- a/conversations/conv_036911.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.153514342327913,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.453665877759872,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7956-245687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 57085
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.326896366391516,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 78009
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 87866
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036916.json b/conversations/conv_036916.json
deleted file mode 100644
index ffd3ec11853028acb2eeac5b6d2076bcd77c7cce..0000000000000000000000000000000000000000
--- a/conversations/conv_036916.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4463",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 48065
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8197-278218",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278199.flac |",
-      "real_speaker_id": "8197",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036920.json b/conversations/conv_036920.json
deleted file mode 100644
index e3f84e7e0a9a75e98668d22a1adce3523c16dd4c..0000000000000000000000000000000000000000
--- a/conversations/conv_036920.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-57416.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "6594",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68897.flac |",
-      "real_speaker_id": "6594",
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\ No newline at end of file
diff --git a/conversations/conv_036936.json b/conversations/conv_036936.json
deleted file mode 100644
index ccdf7882b501ff281097dc940a418906dc9330ec..0000000000000000000000000000000000000000
--- a/conversations/conv_036936.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
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-      "real_speaker_id": "7517",
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-      "real_speaker_id": "2920",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036941.json b/conversations/conv_036941.json
deleted file mode 100644
index b0cbba3cc5af217421b289c7948f8fc342ef0d71..0000000000000000000000000000000000000000
--- a/conversations/conv_036941.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "start_time": 26.68606639999855,
-      "speaker_id": "207"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036946.json b/conversations/conv_036946.json
deleted file mode 100644
index 85f7b059da5279893a25a22a12cbc123db105dfd..0000000000000000000000000000000000000000
--- a/conversations/conv_036946.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7313",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
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-      "position_frames": 96247
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-127742.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.377776317624448,
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-      "duration_frames": 98755,
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-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 160011
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.827947231881865,
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-      "overlap": false,
-      "utterance_id": "3615-14674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14674.flac |",
-      "real_speaker_id": "3615",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.412992803968336,
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-      "utterance_id": "1261-131411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-131411.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036950.json b/conversations/conv_036950.json
deleted file mode 100644
index 9e8abf6b92c82935b8ed15af2f4460534414df83..0000000000000000000000000000000000000000
--- a/conversations/conv_036950.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.616064963982375,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1536.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 61200
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.642199649513522,
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-      "utterance_id": "1417-1539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1417-1536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1536.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 67400
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036957.json b/conversations/conv_036957.json
deleted file mode 100644
index caa497df0aa8242aa3b989ef29f7bf012d1c3ecd..0000000000000000000000000000000000000000
--- a/conversations/conv_036957.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "6484-69655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69655.flac |",
-      "real_speaker_id": "6484",
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-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_036961.json b/conversations/conv_036961.json
deleted file mode 100644
index de8554fbc9be785c1d76a0d67285aba6d0a9f1e4..0000000000000000000000000000000000000000
--- a/conversations/conv_036961.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "duration": 1.08,
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-      "speaker_id": "6138"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_036977.json b/conversations/conv_036977.json
deleted file mode 100644
index 525700873d98d73a405e0e8247d39560466a3316..0000000000000000000000000000000000000000
--- a/conversations/conv_036977.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.394115835074356,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7828-105171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105171.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 0
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-    {
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-      "start_time": 5.043197242932061,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-132102.flac |",
-      "real_speaker_id": "2606",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-132102.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 79041
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.05971999925662,
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-      "utterance_id": "7170-281512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281512.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.91005081181626,
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-      "utterance_id": "7828-105179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 53658
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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\ No newline at end of file
diff --git a/conversations/conv_036982.json b/conversations/conv_036982.json
deleted file mode 100644
index 5595cf294072c2ddc076185caf831d688ff001ab..0000000000000000000000000000000000000000
--- a/conversations/conv_036982.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-109656.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11218.flac |",
-      "real_speaker_id": "4051",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-109656.flac |",
-      "real_speaker_id": "7688",
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-    {
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-      "utterance_id": "4051-11217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11217.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-      "speaker_id": "4051"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036985.json b/conversations/conv_036985.json
deleted file mode 100644
index ae75bcd80af5447b12d526a5982b558ead0c24af..0000000000000000000000000000000000000000
--- a/conversations/conv_036985.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.771104403176384,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8476",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 146326
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_036994.json b/conversations/conv_036994.json
deleted file mode 100644
index 337570f0d91b291ca1f0d6da91d40edfb765ccbd..0000000000000000000000000000000000000000
--- a/conversations/conv_036994.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.84106625641947,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-    {
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-      "utterance_id": "969-134373",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134373.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 94397
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "start_time": 15.622563052365926
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
-      "duration": 0.7219727891156462,
-      "start_time": 26.453546780562835
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/laugh/0053.wav",
-      "duration": 1.0455989516677238,
-      "start_time": 14.874098970189348,
-      "speaker_id": "5970"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/cough/0119.wav",
-      "duration": 1.1106384200007426,
-      "start_time": 11.290826171417306,
-      "speaker_id": "5970"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036995.json b/conversations/conv_036995.json
deleted file mode 100644
index e2fff168447829c68146dea7200ba3eb3691fe7e..0000000000000000000000000000000000000000
--- a/conversations/conv_036995.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.648787956314045,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.90493875442193,
-      "duration": 6.90493875442193,
-      "start_frame": 0,
-      "duration_frames": 110479,
-      "overlap": false,
-      "utterance_id": "3598-180204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3598-180204.flac |",
-      "real_speaker_id": "3598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 8.07733643122533,
-      "end_time": 14.607214987442582,
-      "duration": 6.529878556217253,
-      "start_frame": 129237,
-      "duration_frames": 104478,
-      "overlap": false,
-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 15.047254155436027,
-      "end_time": 20.494569645167115,
-      "duration": 5.447315489731087,
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-      "overlap": false,
-      "utterance_id": "3598-180204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3598-180204.flac |",
-      "real_speaker_id": "3598",
-      "position_frames": 110479
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.126261709347673,
-      "end_time": 26.451367570339805,
-      "duration": 5.3251058609921325,
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-      "overlap": false,
-      "utterance_id": "8225-274374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274374.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.103726991057997,
-      "end_time": 31.648787956314045,
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-      "duration_frames": 72720,
-      "overlap": false,
-      "utterance_id": "3598-173222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3598-173222.flac |",
-      "real_speaker_id": "3598",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
-      "duration": 12.285138583692742,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
-      "duration": 0.6340362811791384,
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3598/laugh/0040.wav",
-      "duration": 1.2,
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-    {
-      "event_class": "cough",
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-    {
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-      "duration": 0.7941815248753638,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3598/laugh/0076.wav",
-      "duration": 0.939979457462602,
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-      "speaker_id": "3598"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_036998.json b/conversations/conv_036998.json
deleted file mode 100644
index 4d5b75fd9a419af91f64fddebc449aa82f9a5853..0000000000000000000000000000000000000000
--- a/conversations/conv_036998.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129594.flac |",
-      "real_speaker_id": "718",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.07861807226108,
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-      "utterance_id": "3876-174953",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 110003
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 87068
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "718-129597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129597.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "3876"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037002.json b/conversations/conv_037002.json
deleted file mode 100644
index 2712038c88a2f935677aaed378bf4ce7e465aef6..0000000000000000000000000000000000000000
--- a/conversations/conv_037002.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.039858558313572,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-139804.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2149-36146.flac |",
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-    {
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-      "segment_id": "seg0005",
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-      "utterance_id": "8545-287671",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_037003.json b/conversations/conv_037003.json
deleted file mode 100644
index 09e4431149785a87dbc05550373dac52f28dcbb0..0000000000000000000000000000000000000000
--- a/conversations/conv_037003.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3105-163726",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3105-163726.flac |",
-      "real_speaker_id": "3105",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "3105-163726",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3105-163726.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037014.json b/conversations/conv_037014.json
deleted file mode 100644
index ad23ae32b9339313ad6d7b7a789d9c53082615fb..0000000000000000000000000000000000000000
--- a/conversations/conv_037014.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
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-      "position_frames": 48135
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-      "speaker_id": 0,
-      "start_time": 20.38171454802173,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
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-      "position_frames": 149166
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-      "utterance_id": "2975-151995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_037018.json b/conversations/conv_037018.json
deleted file mode 100644
index ee043d3474888b409ddce4ea5bb2a513b09728b2..0000000000000000000000000000000000000000
--- a/conversations/conv_037018.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-114975.flac |",
-      "real_speaker_id": "8071",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_037022.json b/conversations/conv_037022.json
deleted file mode 100644
index a09368378c7f9bf5e71f00d56d162ddb6ae88364..0000000000000000000000000000000000000000
--- a/conversations/conv_037022.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6098-57836.flac |",
-      "real_speaker_id": "6098",
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-      "segment_id": "seg0005",
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-      "speaker_id": "6098"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037029.json b/conversations/conv_037029.json
deleted file mode 100644
index 596ce81854777d4f987ae891d627670c40a50707..0000000000000000000000000000000000000000
--- a/conversations/conv_037029.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-104637.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 92056
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-  "background_events": [
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-      "event_class": "Blender",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6184/laugh/0019.wav",
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-      "speaker_id": "6184"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037034.json b/conversations/conv_037034.json
deleted file mode 100644
index f3db84af4ce82c94dd81f11ac5366ae140d5676c..0000000000000000000000000000000000000000
--- a/conversations/conv_037034.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.8437672506788694,
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-      "duration_frames": 61500,
-      "overlap": false,
-      "utterance_id": "7447-91186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91186.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171109.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91186.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 61500
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.917609564542952,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171109.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 74934
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.46869378355284,
-      "end_time": 26.355669262351388,
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-      "utterance_id": "1618-32403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-32403.flac |",
-      "real_speaker_id": "1618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.98632113030195,
-      "end_time": 30.63626260691283,
-      "duration": 3.6499414766108815,
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-      "duration_frames": 58399,
-      "overlap": false,
-      "utterance_id": "7447-91186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91186.flac |",
-      "real_speaker_id": "7447",
-      "position_frames": 116141
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.5519703956259,
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-      "utterance_id": "1618-32399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-32399.flac |",
-      "real_speaker_id": "1618",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-      "speaker_id": "7447"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037038.json b/conversations/conv_037038.json
deleted file mode 100644
index 6defdb5e88a2f3bdace24a9902fdc188424def7b..0000000000000000000000000000000000000000
--- a/conversations/conv_037038.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
-      "position_frames": 111056
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3215-5757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5757.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "duration": 1.0,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037043.json b/conversations/conv_037043.json
deleted file mode 100644
index 685e02eb020687bfa94d7c765cc8126af61d109c..0000000000000000000000000000000000000000
--- a/conversations/conv_037043.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8725-294551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294551.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126651.flac |",
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-      "utterance_id": "8725-294554",
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-      "real_speaker_id": "8725",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126652.flac |",
-      "real_speaker_id": "153",
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-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126651.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8725/cough/0092.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037054.json b/conversations/conv_037054.json
deleted file mode 100644
index 016914d7f6783ef92db3ccfc103f231bfed6fe02..0000000000000000000000000000000000000000
--- a/conversations/conv_037054.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-14274.flac |",
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "duration": 0.98,
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-      "start_time": 31.04,
-      "speaker_id": "3003"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037055.json b/conversations/conv_037055.json
deleted file mode 100644
index 7d8069518d68306c85743a5f4b58fdf32b27e5d8..0000000000000000000000000000000000000000
--- a/conversations/conv_037055.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "real_speaker_id": "6272",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70191.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-41232.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70168.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2910-131096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2910-131096.flac |",
-      "real_speaker_id": "2910",
-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_037059.json b/conversations/conv_037059.json
deleted file mode 100644
index 1866b274eb6f777d388051864ad0d73b4840fb7c..0000000000000000000000000000000000000000
--- a/conversations/conv_037059.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6733",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4945-29091.flac |",
-      "real_speaker_id": "4945",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_037063.json b/conversations/conv_037063.json
deleted file mode 100644
index b71c395aec84e2a7a8bdd294d67e42be20d15182..0000000000000000000000000000000000000000
--- a/conversations/conv_037063.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.374347431833346,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8631-281208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-281208.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
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-      "real_speaker_id": "1107",
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-      "real_speaker_id": "7553",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "position_frames": 68513
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_037068.json b/conversations/conv_037068.json
deleted file mode 100644
index e62d2c4f29e4d46f58795d6e3d36910d39a9ef02..0000000000000000000000000000000000000000
--- a/conversations/conv_037068.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1448-135894.flac |",
-      "real_speaker_id": "1448",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.313106930398927,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1448-135894.flac |",
-      "real_speaker_id": "1448",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5868-55088.flac |",
-      "real_speaker_id": "5868",
-      "position_frames": 92898
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.47986539660527,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5868-55088.flac |",
-      "real_speaker_id": "5868",
-      "position_frames": 161984
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_037075.json b/conversations/conv_037075.json
deleted file mode 100644
index cbfc599e80d9e0fcd53736cfce6e6457e851f42e..0000000000000000000000000000000000000000
--- a/conversations/conv_037075.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.340588578654834,
-      "duration": 4.340588578654834,
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-      "utterance_id": "7198-76169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-76169.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.35112403292147,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-123036.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7198-80652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.05073209286624,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-129587.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.404571533884294,
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-      "utterance_id": "5252-4860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4860.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.545332287312718,
-      "end_time": 32.0,
-      "duration": 3.4546677126872822,
-      "start_frame": 456725,
-      "duration_frames": 55274,
-      "overlap": false,
-      "utterance_id": "175-123036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-123036.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 88902
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
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-      "speaker_id": "7198"
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-      "duration": 1.5,
-      "start_time": 14.30345659580142,
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-      "event_class": "cough",
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-      "start_time": 14.680180353714825,
-      "speaker_id": "175"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037079.json b/conversations/conv_037079.json
deleted file mode 100644
index 8c94c25dc15595cdc72d5f5d4b4d0238203cf99c..0000000000000000000000000000000000000000
--- a/conversations/conv_037079.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88749.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130644.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.063210320153452,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88749.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 87298
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/248/cough/0064.wav",
-      "duration": 0.9480533685533659,
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-      "speaker_id": "248"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037080.json b/conversations/conv_037080.json
deleted file mode 100644
index 883380e71cee24333b11262c3f7de900d3743e7c..0000000000000000000000000000000000000000
--- a/conversations/conv_037080.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.594508477161751,
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-      "overlap": true,
-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
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-      "utterance_id": "6773-76039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.899825300597257,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 85553
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.754332220158645,
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-      "utterance_id": "6773-76039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 55813
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 193131
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-  "paralinguistic_events": [
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-      "start_time": 5.108653039503091,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6773/laugh/0027.wav",
-      "duration": 1.28,
-      "start_time": 14.567108771100488,
-      "speaker_id": "6773"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037087.json b/conversations/conv_037087.json
deleted file mode 100644
index 82f6df009a2819d2f1b0fc484eed276760095d62..0000000000000000000000000000000000000000
--- a/conversations/conv_037087.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.034271185380234,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "3032-19361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.561931292952487,
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-      "real_speaker_id": "6660",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
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-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.701093101583943,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-97655.flac |",
-      "real_speaker_id": "6660",
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-      "speaker_id": 0,
-      "start_time": 24.345094635219674,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
-      "position_frames": 89239
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Alarm_bell_ringing",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6660/laugh/0034.wav",
-      "duration": 0.96,
-      "start_time": 5.394514831587357,
-      "speaker_id": "6660"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6660/cough/0101.wav",
-      "duration": 0.5853651027096431,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8404/laugh/0014.wav",
-      "duration": 1.223963131992748,
-      "start_time": 27.641597485500355,
-      "speaker_id": "8404"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037091.json b/conversations/conv_037091.json
deleted file mode 100644
index bcf7255c4355355f64238ae4ae29d3758cd6cc8d..0000000000000000000000000000000000000000
--- a/conversations/conv_037091.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.272466082163373,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1069-133699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1069-133699.flac |",
-      "real_speaker_id": "1069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.654046046132237,
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-      "overlap": false,
-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.093459713323014,
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-      "utterance_id": "1069-133709",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1069-133709.flac |",
-      "real_speaker_id": "1069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.353132356464098,
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-      "utterance_id": "2694-28891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28891.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.87319765361749,
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-      "utterance_id": "7794-295947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295947.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "speaker_id": "1069"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2694/laugh/0135.wav",
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-      "start_time": 18.7594764250609,
-      "speaker_id": "2694"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037096.json b/conversations/conv_037096.json
deleted file mode 100644
index 08d8213558dd28a0976a7018619101e6fe8b9f7c..0000000000000000000000000000000000000000
--- a/conversations/conv_037096.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4590-18004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18004.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153728.flac |",
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-      "real_speaker_id": "4590",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18004.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 48040
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153728.flac |",
-      "real_speaker_id": "2388",
-      "position_frames": 56050
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 28.783226903975873,
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-      "overlap": false,
-      "utterance_id": "4492-8907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8907.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.679080262666005,
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-      "utterance_id": "4590-18005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18005.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "speaker_id": "4590"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037106.json b/conversations/conv_037106.json
deleted file mode 100644
index 4ff1354341d5ab145cfcc5b730d8d55103efde26..0000000000000000000000000000000000000000
--- a/conversations/conv_037106.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2002-139469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.166227685551924,
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-      "duration": 5.634111797516709,
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-      "utterance_id": "8222-274378",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274378.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 0
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-    {
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-      "duration_frames": 67878,
-      "overlap": false,
-      "utterance_id": "2002-139469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
-      "position_frames": 70962
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.64340744175982,
-      "end_time": 21.4752651169098,
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-      "overlap": false,
-      "utterance_id": "7402-90848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-90848.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.999568035707753,
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-      "utterance_id": "8222-274379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274379.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.523753709077738,
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-      "duration": 4.476246290922262,
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-      "duration_frames": 71619,
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-      "utterance_id": "2002-139469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
-      "position_frames": 138840
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2002/laugh/0013.wav",
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-      "start_time": 13.82805462341009,
-      "speaker_id": "2002"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037110.json b/conversations/conv_037110.json
deleted file mode 100644
index 2c70c43b9579b88890ead16e1c269f73c03de8f6..0000000000000000000000000000000000000000
--- a/conversations/conv_037110.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.487532162341784,
-      "duration": 5.487532162341784,
-      "start_frame": 0,
-      "duration_frames": 87800,
-      "overlap": false,
-      "utterance_id": "922-132299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132299.flac |",
-      "real_speaker_id": "922",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.941985116685024,
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-      "duration": 3.4675737243836204,
-      "start_frame": 95071,
-      "duration_frames": 55481,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-11691.flac |",
-      "real_speaker_id": "83",
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-      "start_time": 10.287272574670368,
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-      "real_speaker_id": "922",
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-      "utterance_id": "83-11691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-11691.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 55481
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.582838468758744,
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-      "utterance_id": "90-121085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-121085.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.37406944592343,
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-      "overlap": false,
-      "utterance_id": "83-9960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-9960.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.28425790100661,
-      "end_time": 32.0,
-      "duration": 0.7157420989933883,
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-      "utterance_id": "90-121085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-121085.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 74323
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "922"
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 7.491095827108049,
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 4.659734342658621,
-      "speaker_id": "83"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037111.json b/conversations/conv_037111.json
deleted file mode 100644
index 11f93e339d13be3c05a5ce431b91bab97bcdc6e6..0000000000000000000000000000000000000000
--- a/conversations/conv_037111.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.367863932521858,
-      "duration": 4.367863932521858,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "258-121528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-121528.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.514950199779575,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "258-130878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 109644
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6235-36641.flac |",
-      "real_speaker_id": "6235",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.02028131352766,
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-      "utterance_id": "258-121528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-121528.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 69885
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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\ No newline at end of file
diff --git a/conversations/conv_037126.json b/conversations/conv_037126.json
deleted file mode 100644
index 58559d5a81c9e0ee484d193fe06e5e75fbaeb14b..0000000000000000000000000000000000000000
--- a/conversations/conv_037126.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4681-13056.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "4681",
-      "position_frames": 98898
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-    {
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-      "real_speaker_id": "1736",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "5023-1185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-1185.flac |",
-      "real_speaker_id": "5023",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1736-152007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-152007.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
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-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "1736"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037130.json b/conversations/conv_037130.json
deleted file mode 100644
index 79392089ddbde4542c4bce34a549b04960aaf0dd..0000000000000000000000000000000000000000
--- a/conversations/conv_037130.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1081-125237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-125237.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/173/cough/0022.wav",
-      "duration": 1.087995439169328,
-      "start_time": 20.62141657461263,
-      "speaker_id": "173"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037146.json b/conversations/conv_037146.json
deleted file mode 100644
index 42f65354276d53794d771961d8a4ba92318841fe..0000000000000000000000000000000000000000
--- a/conversations/conv_037146.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.594424107099051,
-      "duration": 5.594424107099051,
-      "start_frame": 0,
-      "duration_frames": 89510,
-      "overlap": false,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.23298868265524,
-      "end_time": 11.132362131122136,
-      "duration": 4.899373448466897,
-      "start_frame": 99727,
-      "duration_frames": 78389,
-      "overlap": false,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.505521887830408,
-      "end_time": 16.439293013956874,
-      "duration": 4.933771126126467,
-      "start_frame": 184088,
-      "duration_frames": 78940,
-      "overlap": false,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 89510
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.187145890191527,
-      "end_time": 23.231468546804017,
-      "duration": 6.044322656612492,
-      "start_frame": 274994,
-      "duration_frames": 96709,
-      "overlap": false,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 78389
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.516000177689705,
-      "end_time": 28.914506677792126,
-      "duration": 5.398506500102423,
-      "start_frame": 376256,
-      "duration_frames": 86376,
-      "overlap": false,
-      "utterance_id": "23-124439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.383192428849966,
-      "end_time": 32.0,
-      "duration": 2.6168075711500336,
-      "start_frame": 470131,
-      "duration_frames": 41868,
-      "overlap": false,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 175098
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
-      "duration": 2.188775510204082,
-      "start_time": 19.85411681678046
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/laugh/0026.wav",
-      "duration": 0.6727619747012601,
-      "start_time": 4.730126042415041,
-      "speaker_id": "4428"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/cough/0026.wav",
-      "duration": 0.37336980324612823,
-      "start_time": 0,
-      "speaker_id": "4428"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/laugh/0051.wav",
-      "duration": 1.08,
-      "start_time": 16.521628032718155,
-      "speaker_id": "4428"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5735/laugh/0036.wav",
-      "duration": 1.46,
-      "start_time": 27.640209638362418,
-      "speaker_id": "5735"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5735/cough/0058.wav",
-      "duration": 0.3034500321715744,
-      "start_time": 30.57434402877771,
-      "speaker_id": "5735"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037147.json b/conversations/conv_037147.json
deleted file mode 100644
index 413d13be17bdcbda431e8a75a6e781f980aeddbf..0000000000000000000000000000000000000000
--- a/conversations/conv_037147.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.948161110072924,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.04968223507005,
-      "duration": 5.04968223507005,
-      "start_frame": 0,
-      "duration_frames": 80794,
-      "overlap": false,
-      "utterance_id": "9023-296468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.720578257212573,
-      "end_time": 11.601555985394866,
-      "duration": 6.880977728182293,
-      "start_frame": 75529,
-      "duration_frames": 110095,
-      "overlap": true,
-      "utterance_id": "5519-39478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5519-39478.flac |",
-      "real_speaker_id": "5519",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.41076691747127,
-      "end_time": 19.650210650239337,
-      "duration": 6.239443732768067,
-      "start_frame": 214572,
-      "duration_frames": 99831,
-      "overlap": false,
-      "utterance_id": "9023-296467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296467.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.810971711887383,
-      "end_time": 25.50671155608706,
-      "duration": 5.695739844199675,
-      "start_frame": 316975,
-      "duration_frames": 91131,
-      "overlap": false,
-      "utterance_id": "5519-39481",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5519-39481.flac |",
-      "real_speaker_id": "5519",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.318826289593428,
-      "end_time": 30.948161110072924,
-      "duration": 4.629334820479498,
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-      "duration_frames": 74069,
-      "overlap": false,
-      "utterance_id": "9023-296467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296467.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 99831
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
-      "duration": 0.19673469387755102,
-      "start_time": 6.775795056736403
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
-      "duration": 4.872598924641762,
-      "start_time": 15.904365117957486
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/9023/laugh/0075.wav",
-      "duration": 1.0678972128680275,
-      "start_time": 30.932102787131974,
-      "speaker_id": "9023"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037151.json b/conversations/conv_037151.json
deleted file mode 100644
index 79e1a70a7dbc30492fe294174f81738663a6cd94..0000000000000000000000000000000000000000
--- a/conversations/conv_037151.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.432881842539265,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.756151094046553,
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-      "utterance_id": "5545-66419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-66419.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.220966094280758,
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-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 102926
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.907502320578985,
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-      "utterance_id": "1868-145459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-145459.flac |",
-      "real_speaker_id": "1868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1868-145473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-145473.flac |",
-      "real_speaker_id": "1868",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_13.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1868/laugh/0002.wav",
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-      "start_time": 17.040818247346543,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1868/laugh/0053.wav",
-      "duration": 1.44,
-      "start_time": 29.868023274049463,
-      "speaker_id": "1868"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037167.json b/conversations/conv_037167.json
deleted file mode 100644
index d54d9a62fd8c16f303498c231008e745b3ee8507..0000000000000000000000000000000000000000
--- a/conversations/conv_037167.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.163067340657212,
-      "duration": 3.163067340657212,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7713-106738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106738.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.01310586073488,
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-      "utterance_id": "1184-135540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135540.flac |",
-      "real_speaker_id": "1184",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7354-87667",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1184-135532",
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-      "real_speaker_id": "1184",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 50609
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-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "1184-135540",
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-  "background_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7713/laugh/0076.wav",
-      "duration": 1.52,
-      "start_time": 3.3233605106927455,
-      "speaker_id": "7713"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1184/laugh/0113.wav",
-      "duration": 0.6643493324057137,
-      "start_time": 3.3740025812025913,
-      "speaker_id": "1184"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1184/cough/0079.wav",
-      "duration": 1.0695035623732938,
-      "start_time": 20.616189064450154,
-      "speaker_id": "1184"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7713/laugh/0049.wav",
-      "duration": 0.90162939793754,
-      "start_time": 24.12489668053525,
-      "speaker_id": "7713"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037171.json b/conversations/conv_037171.json
deleted file mode 100644
index 4fa3065ed83ca79aac808527aa71e61d5be03aa1..0000000000000000000000000000000000000000
--- a/conversations/conv_037171.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.65058428344498,
-      "duration": 5.65058428344498,
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-      "duration_frames": 90409,
-      "overlap": false,
-      "utterance_id": "5740-97593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97593.flac |",
-      "real_speaker_id": "5740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.410206979203604,
-      "end_time": 13.193583808097893,
-      "duration": 6.783376828894289,
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-      "overlap": false,
-      "utterance_id": "636-128310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128310.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.588480173360992,
-      "end_time": 19.24573197461908,
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-      "duration_frames": 90516,
-      "overlap": false,
-      "utterance_id": "5740-97610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97610.flac |",
-      "real_speaker_id": "5740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.68715409746095,
-      "end_time": 22.9113772863454,
-      "duration": 3.224223188884449,
-      "start_frame": 314994,
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-      "overlap": false,
-      "utterance_id": "5271-34505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34505.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.69630430532096,
-      "end_time": 29.46412958933787,
-      "duration": 5.767825284016908,
-      "start_frame": 379140,
-      "duration_frames": 92285,
-      "overlap": false,
-      "utterance_id": "5271-10982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-10982.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.39383957203867,
-      "end_time": 32.0,
-      "duration": 1.6061604279613313,
-      "start_frame": 486301,
-      "duration_frames": 25698,
-      "overlap": false,
-      "utterance_id": "5271-34505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34505.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 51587
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 23.123673469387754,
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-  "foreground_events": [
-    {
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5271/laugh/0032.wav",
-      "duration": 0.8275012236770686,
-      "start_time": 22.739887171879417,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5271/cough/0079.wav",
-      "duration": 1.4845471547337785,
-      "start_time": 29.570992247121033,
-      "speaker_id": "5271"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5271/cough/0053.wav",
-      "duration": 0.8944032369948702,
-      "start_time": 30.72113568157547,
-      "speaker_id": "5271"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037183.json b/conversations/conv_037183.json
deleted file mode 100644
index e316cc90f251cf8271435a9ddb9f7e837a16aa2c..0000000000000000000000000000000000000000
--- a/conversations/conv_037183.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3675-10687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-10687.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.531163713320146,
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-      "real_speaker_id": "7246",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "404-132015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132015.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.10733374774373,
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-      "duration": 5.67003471111671,
-      "start_frame": 289717,
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-      "overlap": false,
-      "utterance_id": "3675-185514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-185514.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.187690873098706,
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-      "duration_frames": 69744,
-      "overlap": false,
-      "utterance_id": "404-132013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132013.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.863721365700634,
-      "end_time": 32.0,
-      "duration": 3.136278634299366,
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-      "duration_frames": 50180,
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-      "utterance_id": "7246-63505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-63505.flac |",
-      "real_speaker_id": "7246",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7246/cough/0141.wav",
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-      "start_time": 27.936307768324838,
-      "speaker_id": "7246"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037184.json b/conversations/conv_037184.json
deleted file mode 100644
index b239ae1a1e41d633041b72630594ffc18d70198e..0000000000000000000000000000000000000000
--- a/conversations/conv_037184.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.602529845041964,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
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-      "real_speaker_id": "679",
-      "position_frames": 192651
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.082992360970135,
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-      "overlap": false,
-      "utterance_id": "1734-142311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
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-  "background_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037188.json b/conversations/conv_037188.json
deleted file mode 100644
index 50834737be45caebcc847fcb41957bb80bf6c696..0000000000000000000000000000000000000000
--- a/conversations/conv_037188.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.160810991728177,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "7245-104890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104890.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104886.flac |",
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-      "position_frames": 52710
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
-      "duration": 2.2336111144268376,
-      "start_time": 25.59141256604463
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
-      "duration": 3.654962287002107,
-      "start_time": 13.84701358053099
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_037192.json b/conversations/conv_037192.json
deleted file mode 100644
index 01917529e4518faa3f55f3ee36781f9d1adf3f77..0000000000000000000000000000000000000000
--- a/conversations/conv_037192.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.31032719664882,
-      "duration": 5.31032719664882,
-      "start_frame": 0,
-      "duration_frames": 84965,
-      "overlap": false,
-      "utterance_id": "4015-4878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-4878.flac |",
-      "real_speaker_id": "4015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.589937174232094,
-      "end_time": 11.817901044273139,
-      "duration": 6.227963870041046,
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-      "duration_frames": 99647,
-      "overlap": false,
-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.547564215915692,
-      "end_time": 16.31383920572724,
-      "duration": 3.7662749898115497,
-      "start_frame": 200761,
-      "duration_frames": 60260,
-      "overlap": false,
-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 99647
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.06796112419253,
-      "end_time": 22.604693263460728,
-      "duration": 5.536732139268199,
-      "start_frame": 273087,
-      "duration_frames": 88587,
-      "overlap": false,
-      "utterance_id": "4015-63729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-63729.flac |",
-      "real_speaker_id": "4015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.97680647383418,
-      "end_time": 29.841282483734958,
-      "duration": 6.864476009900775,
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-      "overlap": false,
-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 159907
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.254493656193546,
-      "end_time": 32.0,
-      "duration": 1.7455063438064542,
-      "start_frame": 484071,
-      "duration_frames": 27928,
-      "overlap": false,
-      "utterance_id": "3914-10089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "4015"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4236/laugh/0060.wav",
-      "duration": 1.24,
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-      "speaker_id": "4236"
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-    {
-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 21.55801429217105,
-      "speaker_id": "4236"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3914/laugh/0084.wav",
-      "duration": 1.141048018227144,
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-      "speaker_id": "3914"
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 29.066296935271907,
-      "speaker_id": "3914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037195.json b/conversations/conv_037195.json
deleted file mode 100644
index 69ff20b68fcc1875c07469717c4a3be0454aa8e9..0000000000000000000000000000000000000000
--- a/conversations/conv_037195.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2836-5354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5354.flac |",
-      "real_speaker_id": "2836",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.446765152083659,
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-      "utterance_id": "7408-255943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-255943.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.675489020839128,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-255932.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.793736870359172,
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-      "utterance_id": "4051-10927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-10927.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.710663634419273,
-      "end_time": 29.344613513031863,
-      "duration": 5.633949878612589,
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-      "overlap": true,
-      "utterance_id": "7408-255932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-255932.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 82448
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 1.3706922863122344,
-      "start_frame": 490068,
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-      "utterance_id": "2836-5354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5354.flac |",
-      "real_speaker_id": "2836",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.12,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4051/cough/0036.wav",
-      "duration": 0.7498675658606964,
-      "start_time": 17.950773962192077,
-      "speaker_id": "4051"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037203.json b/conversations/conv_037203.json
deleted file mode 100644
index 1a9fbe93e4a88d29d3cd9fb4da0564cf1dc19132..0000000000000000000000000000000000000000
--- a/conversations/conv_037203.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": false,
-      "utterance_id": "6583-66463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66463.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 78707
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.06262637595973,
-      "end_time": 32.0,
-      "duration": 5.937373624040269,
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-      "utterance_id": "6583-66269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66269.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Cat",
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-      "start_time": 25.46998510115802,
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-}
\ No newline at end of file
diff --git a/conversations/conv_037204.json b/conversations/conv_037204.json
deleted file mode 100644
index e04c841734077b76e479b5301a188d3405b34b6a..0000000000000000000000000000000000000000
--- a/conversations/conv_037204.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.624832760641873,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.12185801402223,
-      "duration": 4.12185801402223,
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-      "overlap": false,
-      "utterance_id": "2532-157475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-157475.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.6379092226628265,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-126577.flac |",
-      "real_speaker_id": "203",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "884-129800",
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/203/laugh/0083.wav",
-      "duration": 0.5572221677916951,
-      "start_time": 6.3096246769827395,
-      "speaker_id": "203"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037212.json b/conversations/conv_037212.json
deleted file mode 100644
index 2a57fd30405d20e651c0cf7fe499558d66e0ce50..0000000000000000000000000000000000000000
--- a/conversations/conv_037212.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.504153934818903,
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-      "overlap": false,
-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.788855142496842,
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-      "duration": 6.289651452461555,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 72066
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.017574533160204,
-      "end_time": 25.17705177963399,
-      "duration": 6.159477246473787,
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-      "overlap": false,
-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.419386912535348,
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-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 172035
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.103987212918938,
-      "end_time": 32.0,
-      "duration": 1.8960127870810624,
-      "start_frame": 481663,
-      "duration_frames": 30336,
-      "overlap": false,
-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 244851
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.430550715193752,
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3259/laugh/0042.wav",
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-      "start_time": 10.457363447584285,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5980/laugh/0027.wav",
-      "duration": 0.8,
-      "start_time": 18.143993801215743,
-      "speaker_id": "5980"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3259/laugh/0053.wav",
-      "duration": 1.6052921368418334,
-      "start_time": 28.32280219579844,
-      "speaker_id": "3259"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037215.json b/conversations/conv_037215.json
deleted file mode 100644
index 0514a6f379cf1aaf52a4f5ab5e19fe826fce82e1..0000000000000000000000000000000000000000
--- a/conversations/conv_037215.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5023-41918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-41918.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3521-12715.flac |",
-      "real_speaker_id": "3521",
-      "position_frames": 0
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-      "real_speaker_id": "6673",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.944904799430915,
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-      "utterance_id": "3521-7591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3521-7591.flac |",
-      "real_speaker_id": "3521",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.12109444187764,
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-      "overlap": true,
-      "utterance_id": "5023-33399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-33399.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.233073576021393,
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-      "duration": 2.7669264239786067,
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-      "utterance_id": "3521-175962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3521-175962.flac |",
-      "real_speaker_id": "3521",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
-    {
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.48,
-      "start_time": 0,
-      "speaker_id": "5023"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3521/laugh/0104.wav",
-      "duration": 1.48,
-      "start_time": 19.76326321953908,
-      "speaker_id": "3521"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037219.json b/conversations/conv_037219.json
deleted file mode 100644
index 39fbd4bc9c3a31004681004ea7c0c22eebcced85..0000000000000000000000000000000000000000
--- a/conversations/conv_037219.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.288727566169349,
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-      "utterance_id": "783-126739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "107-22887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22887.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 216469
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "783-126739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 149672
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_037223.json b/conversations/conv_037223.json
deleted file mode 100644
index 4fb49805960b440cfb0bc75fabfb73f78b7715e9..0000000000000000000000000000000000000000
--- a/conversations/conv_037223.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.557532136648966,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "4179-20567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4179-20567.flac |",
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-      "utterance_id": "4179-20593",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1096/laugh/0065.wav",
-      "duration": 1.669376980803917,
-      "start_time": 20.770236618323985,
-      "speaker_id": "1096"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1096/cough/0003.wav",
-      "duration": 1.223584914444272,
-      "start_time": 23.781811505619416,
-      "speaker_id": "1096"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037228.json b/conversations/conv_037228.json
deleted file mode 100644
index b37b632f5466e94265948815ac7afe5b0579e580..0000000000000000000000000000000000000000
--- a/conversations/conv_037228.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.555841511310572,
-      "duration": 4.555841511310572,
-      "start_frame": 0,
-      "duration_frames": 72893,
-      "overlap": false,
-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.9133944291809435,
-      "end_time": 11.001007654458611,
-      "duration": 6.087613225277667,
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-      "duration_frames": 97401,
-      "overlap": false,
-      "utterance_id": "8014-112602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-112602.flac |",
-      "real_speaker_id": "8014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.240042962665012,
-      "end_time": 15.516691954137457,
-      "duration": 4.276648991472446,
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-      "duration_frames": 68426,
-      "overlap": false,
-      "utterance_id": "8014-112602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-112602.flac |",
-      "real_speaker_id": "8014",
-      "position_frames": 97401
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.038352530401703,
-      "end_time": 21.88922864083793,
-      "duration": 6.850876110436229,
-      "start_frame": 240613,
-      "duration_frames": 109614,
-      "overlap": true,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.933549433526686,
-      "end_time": 28.90111468029474,
-      "duration": 4.967565246768053,
-      "start_frame": 382936,
-      "duration_frames": 79481,
-      "overlap": false,
-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 72893
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.15957541012853,
-      "end_time": 32.0,
-      "duration": 2.8404245898714713,
-      "start_frame": 466553,
-      "duration_frames": 45446,
-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 109614
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
-      "duration": 23.819763050884994,
-      "start_time": 3.4696532628377903
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-      "start_time": 14.01274847057565
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5104/laugh/0097.wav",
-      "duration": 1.139172770184004,
-      "start_time": 0,
-      "speaker_id": "5104"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5104/cough/0041.wav",
-      "duration": 1.16,
-      "start_time": 1.6198953289381732,
-      "speaker_id": "5104"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8014/cough/0070.wav",
-      "duration": 1.2249216216034193,
-      "start_time": 8.964940098199818,
-      "speaker_id": "8014"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8014/laugh/0004.wav",
-      "duration": 1.36,
-      "start_time": 9.838951270090835,
-      "speaker_id": "8014"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5837/laugh/0043.wav",
-      "duration": 0.5134720787586049,
-      "start_time": 29.80708644046848,
-      "speaker_id": "5837"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037235.json b/conversations/conv_037235.json
deleted file mode 100644
index edfcfbb0cd3e83f79a4b43434265467542f5670e..0000000000000000000000000000000000000000
--- a/conversations/conv_037235.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.129342222253946,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.413888610813194,
-      "duration": 3.413888610813194,
-      "start_frame": 0,
-      "duration_frames": 54622,
-      "overlap": false,
-      "utterance_id": "6695-252325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252325.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.096353158244735,
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-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.940016616133514,
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-      "duration_frames": 69723,
-      "overlap": false,
-      "utterance_id": "6695-71407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-71407.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.095153514546194,
-      "end_time": 17.75044090817497,
-      "duration": 4.655287393628775,
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-      "overlap": true,
-      "utterance_id": "2237-163673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-163673.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.010019246336388,
-      "end_time": 24.095991542071943,
-      "duration": 5.085972295735557,
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-      "duration_frames": 81375,
-      "overlap": false,
-      "utterance_id": "2237-163673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-163673.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 74484
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.229320741419322,
-      "end_time": 31.129342222253946,
-      "duration": 5.9000214808346225,
-      "start_frame": 403669,
-      "duration_frames": 94400,
-      "overlap": false,
-      "utterance_id": "6695-71407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-71407.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 69723
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
-      "duration": 0.22993197278911565,
-      "start_time": 28.188445248073503
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2237/cough/0033.wav",
-      "duration": 0.39320215444492335,
-      "start_time": 12.698806752740504,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6695/laugh/0121.wav",
-      "duration": 1.2,
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-      "speaker_id": "6695"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6695/cough/0065.wav",
-      "duration": 0.7247653083697947,
-      "start_time": 31.173821964125505,
-      "speaker_id": "6695"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037238.json b/conversations/conv_037238.json
deleted file mode 100644
index 9fffda15175e0af33e26cb4c087452cb77db6062..0000000000000000000000000000000000000000
--- a/conversations/conv_037238.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1743-142914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142914.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.66457078025944,
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-      "utterance_id": "7241-90850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90850.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
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-      "utterance_id": "1743-142913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142913.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7241-90852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.63600628690524,
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-      "overlap": false,
-      "utterance_id": "77-121518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121518.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.897238240568573,
-      "end_time": 32.0,
-      "duration": 6.102761759431427,
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-      "overlap": false,
-      "utterance_id": "7241-90852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 100565
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7241/laugh/0058.wav",
-      "duration": 1.126395170627656,
-      "start_time": 26.09352186107517,
-      "speaker_id": "7241"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037239.json b/conversations/conv_037239.json
deleted file mode 100644
index 412a7822c86e493ae0a1dc5626affabc62260c6a..0000000000000000000000000000000000000000
--- a/conversations/conv_037239.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.014688710872395,
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-      "utterance_id": "3285-121400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121400.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2562-133442.flac |",
-      "real_speaker_id": "2562",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
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-    {
-      "segment_id": "seg0003",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_037242.json b/conversations/conv_037242.json
deleted file mode 100644
index 9f4362208b7bd31956d716dd662a3d9486f228da..0000000000000000000000000000000000000000
--- a/conversations/conv_037242.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "real_speaker_id": "2093",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154671.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.324601862762083,
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-      "utterance_id": "2427-154673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154673.flac |",
-      "real_speaker_id": "2427",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.196410653000264,
-      "end_time": 32.0,
-      "duration": 2.803589346999736,
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-      "utterance_id": "8215-275203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8215-275203.flac |",
-      "real_speaker_id": "8215",
-      "position_frames": 105357
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-      "speaker_id": "8215"
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\ No newline at end of file
diff --git a/conversations/conv_037245.json b/conversations/conv_037245.json
deleted file mode 100644
index 99d6666742c1614377a409ab39163988cdb6eecc..0000000000000000000000000000000000000000
--- a/conversations/conv_037245.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-103535.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 0
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-      "real_speaker_id": "1212",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-302111.flac |",
-      "real_speaker_id": "8713",
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-      "real_speaker_id": "1212",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-300047.flac |",
-      "real_speaker_id": "8713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1212-185485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-185485.flac |",
-      "real_speaker_id": "1212",
-      "position_frames": 71540
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "speaker_id": "1212"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037253.json b/conversations/conv_037253.json
deleted file mode 100644
index 4fceba0526d2861c6155f930db02f3c73344fe32..0000000000000000000000000000000000000000
--- a/conversations/conv_037253.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-16221.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/273-123248.flac |",
-      "real_speaker_id": "273",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/273-123248.flac |",
-      "real_speaker_id": "273",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4591/cough/0021.wav",
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-      "duration": 1.44,
-      "start_time": 29.754368123379656,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037254.json b/conversations/conv_037254.json
deleted file mode 100644
index 702e1efbded23f3538545625b8a79b3d9b0f4da2..0000000000000000000000000000000000000000
--- a/conversations/conv_037254.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.890514131662567,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4767-66411.flac |",
-      "real_speaker_id": "4767",
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-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-      "utterance_id": "1572-141718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.372576966915297,
-      "end_time": 31.890514131662567,
-      "duration": 3.51793716474727,
-      "start_frame": 453961,
-      "duration_frames": 56286,
-      "overlap": false,
-      "utterance_id": "1795-142410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1795-142410.flac |",
-      "real_speaker_id": "1795",
-      "position_frames": 71562
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
-      "duration": 2.5541043083900226,
-      "start_time": 27.81171468404161
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1795/laugh/0026.wav",
-      "duration": 1.52,
-      "start_time": 6.47934218489547,
-      "speaker_id": "1795"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1572/laugh/0051.wav",
-      "duration": 1.28,
-      "start_time": 26.205808628113882,
-      "speaker_id": "1572"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037258.json b/conversations/conv_037258.json
deleted file mode 100644
index da14b356cccba09e0aa04e87681134445db51dee..0000000000000000000000000000000000000000
--- a/conversations/conv_037258.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.5331193651016335,
-      "duration": 4.5331193651016335,
-      "start_frame": 0,
-      "duration_frames": 72529,
-      "overlap": false,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.041083552090744,
-      "end_time": 9.772922052493296,
-      "duration": 4.731838500402552,
-      "start_frame": 80657,
-      "duration_frames": 75709,
-      "overlap": false,
-      "utterance_id": "1383-130532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130532.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.160949947015629,
-      "end_time": 14.22588134449817,
-      "duration": 4.064931397482542,
-      "start_frame": 162575,
-      "duration_frames": 65038,
-      "overlap": false,
-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.38091776430684,
-      "end_time": 18.056301098123768,
-      "duration": 3.6753833338169275,
-      "start_frame": 230094,
-      "duration_frames": 58806,
-      "overlap": false,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 72529
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.907008806710046,
-      "end_time": 24.027004531968934,
-      "duration": 5.119995725258889,
-      "start_frame": 302512,
-      "duration_frames": 81919,
-      "overlap": false,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 131335
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.74882050489768,
-      "end_time": 29.993415524329695,
-      "duration": 5.2445950194320154,
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-      "duration_frames": 83913,
-      "overlap": false,
-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.064323042180302,
-      "end_time": 32.0,
-      "duration": 0.9356769578196982,
-      "start_frame": 497029,
-      "duration_frames": 14970,
-      "overlap": false,
-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 65038
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
-      "duration": 2.7610260642367837,
-      "start_time": 20.813218327593844
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/laugh/0041.wav",
-      "duration": 1.2208557923646157,
-      "start_time": 4.688247176310584,
-      "speaker_id": "4428"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/laugh/0085.wav",
-      "duration": 1.04,
-      "start_time": 13.218602665679356,
-      "speaker_id": "4428"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4428/laugh/0080.wav",
-      "duration": 1.44,
-      "start_time": 22.087495432306117,
-      "speaker_id": "4428"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1383/cough/0079.wav",
-      "duration": 1.2,
-      "start_time": 30.1063502939773,
-      "speaker_id": "1383"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4846/laugh/0048.wav",
-      "duration": 1.08,
-      "start_time": 29.906230348139065,
-      "speaker_id": "4846"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037262.json b/conversations/conv_037262.json
deleted file mode 100644
index 9be8edfd6f47c0551e36ba6d6d9819167deb756f..0000000000000000000000000000000000000000
--- a/conversations/conv_037262.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.398654408891249,
-      "duration": 5.398654408891249,
-      "start_frame": 0,
-      "duration_frames": 86378,
-      "overlap": false,
-      "utterance_id": "3347-134425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3347-134425.flac |",
-      "real_speaker_id": "3347",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.279751490371309,
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-      "duration_frames": 87161,
-      "overlap": false,
-      "utterance_id": "7121-86787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-86787.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.220207033452414,
-      "end_time": 15.928526318758365,
-      "duration": 3.7083192853059503,
-      "start_frame": 195523,
-      "duration_frames": 59333,
-      "overlap": false,
-      "utterance_id": "6308-68359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
-      "real_speaker_id": "6308",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.497169209963523,
-      "end_time": 20.17681065681267,
-      "duration": 3.6796414468491467,
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-      "duration_frames": 58874,
-      "overlap": false,
-      "utterance_id": "7121-86787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-86787.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 87161
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.992985334692527,
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-      "duration": 6.127566613847527,
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-      "duration_frames": 98041,
-      "overlap": false,
-      "utterance_id": "7121-88076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-88076.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.690891719577746,
-      "end_time": 32.0,
-      "duration": 4.3091082804222545,
-      "start_frame": 443054,
-      "duration_frames": 68945,
-      "overlap": false,
-      "utterance_id": "6308-68359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
-      "real_speaker_id": "6308",
-      "position_frames": 59333
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
-      "duration": 2.159278527688777,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7121/laugh/0077.wav",
-      "duration": 1.1522019178181968,
-      "start_time": 4.991555533790111,
-      "speaker_id": "7121"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6308/laugh/0005.wav",
-      "duration": 1.24,
-      "start_time": 14.2437387659451,
-      "speaker_id": "6308"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7121/laugh/0064.wav",
-      "duration": 0.9882297859000198,
-      "start_time": 20.37092878678364,
-      "speaker_id": "7121"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037274.json b/conversations/conv_037274.json
deleted file mode 100644
index 8b98dd304d99165fd35d3c8a72f2cd727a0de74b..0000000000000000000000000000000000000000
--- a/conversations/conv_037274.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.922171496986934,
-      "duration": 4.922171496986934,
-      "start_frame": 0,
-      "duration_frames": 78754,
-      "overlap": false,
-      "utterance_id": "5910-53143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53143.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.183907698249134,
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-      "duration_frames": 95546,
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-      "utterance_id": "6505-231837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6505-231837.flac |",
-      "real_speaker_id": "6505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.765968293898961,
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-      "duration": 5.628411926790603,
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-      "duration_frames": 90054,
-      "overlap": false,
-      "utterance_id": "5910-53143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53143.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 78754
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.722053517536,
-      "end_time": 21.95626045485244,
-      "duration": 4.234206937316441,
-      "start_frame": 283552,
-      "duration_frames": 67747,
-      "overlap": false,
-      "utterance_id": "2411-132530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132530.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.71372557867513,
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-      "duration": 3.619303325108204,
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-      "duration_frames": 57908,
-      "overlap": false,
-      "utterance_id": "6505-231836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6505-231836.flac |",
-      "real_speaker_id": "6505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.35896280133602,
-      "end_time": 32.0,
-      "duration": 4.64103719866398,
-      "start_frame": 437743,
-      "duration_frames": 74256,
-      "overlap": false,
-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.2289212492656074,
-      "start_time": 12.074574705460504
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_037278.json b/conversations/conv_037278.json
deleted file mode 100644
index 4bb75925279e854084c9a1d192f56bc901d204fb..0000000000000000000000000000000000000000
--- a/conversations/conv_037278.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.196496653752364,
-      "duration": 6.196496653752364,
-      "start_frame": 0,
-      "duration_frames": 99143,
-      "overlap": false,
-      "utterance_id": "2517-135227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135227.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.940034977881442,
-      "end_time": 12.104521052509304,
-      "duration": 5.164486074627861,
-      "start_frame": 111040,
-      "duration_frames": 82631,
-      "overlap": false,
-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.771294696254529,
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-      "duration_frames": 62960,
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-      "utterance_id": "2517-135227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135227.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 99143
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.749708676832633,
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-      "duration_frames": 108024,
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-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 108024
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "end_time": 32.0,
-      "duration": 1.7961841360818767,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
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-  "background_events": [],
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-      "duration": 1.3,
-      "start_time": 12.168330642241868,
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-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 26.840364523035017,
-      "speaker_id": "2517"
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-      "event_class": "cough",
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-      "speaker_id": "6353"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037280.json b/conversations/conv_037280.json
deleted file mode 100644
index 956d70c55946733018e8a4fb119c847c2c08e10d..0000000000000000000000000000000000000000
--- a/conversations/conv_037280.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.65131730862761,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "4425-14497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.97985118851728,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
-      "position_frames": 74672
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305213.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 14.690588028754277,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-63229.flac |",
-      "real_speaker_id": "6087",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
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-      "utterance_id": "6087-50469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-50469.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.282234040413883,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
-      "position_frames": 256460
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Cat",
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-      "speaker_id": "6087"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037281.json b/conversations/conv_037281.json
deleted file mode 100644
index 42204c652b695461c4aa029f3006cafd02818a01..0000000000000000000000000000000000000000
--- a/conversations/conv_037281.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "313-128021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-128021.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-133059.flac |",
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-122804.flac |",
-      "real_speaker_id": "313",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.59266128609933,
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-      "duration": 4.743552892560428,
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-      "duration_frames": 75896,
-      "overlap": false,
-      "utterance_id": "313-122804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-122804.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 77737
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.853316824629168,
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-      "overlap": false,
-      "utterance_id": "313-127997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-127997.flac |",
-      "real_speaker_id": "313",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_6.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "speaker_id": "2089"
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-    {
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-      "duration": 1.24,
-      "start_time": 22.151703813403156,
-      "speaker_id": "313"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037297.json b/conversations/conv_037297.json
deleted file mode 100644
index f601d656ec398d4524c6326beaeb7ee9782b5afa..0000000000000000000000000000000000000000
--- a/conversations/conv_037297.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.61955432999361,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "242-122625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122625.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-153219.flac |",
-      "real_speaker_id": "2437",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-123602.flac |",
-      "real_speaker_id": "398",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-153220.flac |",
-      "real_speaker_id": "2437",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.21623831697419,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-126842.flac |",
-      "real_speaker_id": "242",
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 27.550187595314213,
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-      "duration_frames": 65109,
-      "overlap": false,
-      "utterance_id": "2437-153219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-153219.flac |",
-      "real_speaker_id": "2437",
-      "position_frames": 90097
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/242/laugh/0085.wav",
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-      "start_time": 0,
-      "speaker_id": "242"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "speaker_id": "398"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2437/cough/0027.wav",
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-      "speaker_id": "2437"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037300.json b/conversations/conv_037300.json
deleted file mode 100644
index ff19ad732a864ebc882598b101ef6d8210a71782..0000000000000000000000000000000000000000
--- a/conversations/conv_037300.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6904575087722287,
-      "duration": 3.6904575087722287,
-      "start_frame": 0,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_037307.json b/conversations/conv_037307.json
deleted file mode 100644
index 53e7c6073d0cff036fe753f4cdf723dfb43307fa..0000000000000000000000000000000000000000
--- a/conversations/conv_037307.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74597.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-41940.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 71175
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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\ No newline at end of file
diff --git a/conversations/conv_037311.json b/conversations/conv_037311.json
deleted file mode 100644
index 4ed57cc468cf0c27f69b091bcae6643e22e00490..0000000000000000000000000000000000000000
--- a/conversations/conv_037311.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "5386",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/28-12332.flac |",
-      "real_speaker_id": "28",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-4145.flac |",
-      "real_speaker_id": "5386",
-      "position_frames": 66249
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1161-135206",
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-      "real_speaker_id": "1161",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037316.json b/conversations/conv_037316.json
deleted file mode 100644
index 4fdbfd8aa2013cc15193419e59406b6da41f92f7..0000000000000000000000000000000000000000
--- a/conversations/conv_037316.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.617770434508284,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4295-112687",
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-      "real_speaker_id": "4295",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 82342
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_037327.json b/conversations/conv_037327.json
deleted file mode 100644
index b657f2c4261198f737be28970abced89c60097a1..0000000000000000000000000000000000000000
--- a/conversations/conv_037327.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5784-61949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61949.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61948.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61949.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 54873
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61949.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 152862
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-    {
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-      "duration": 1.068397564765522,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5784/laugh/0132.wav",
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-      "start_time": 11.417168538149628,
-      "speaker_id": "5784"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037331.json b/conversations/conv_037331.json
deleted file mode 100644
index 694fbdc5b86388819da0924018f7393086e43fb7..0000000000000000000000000000000000000000
--- a/conversations/conv_037331.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "8770-295462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295462.flac |",
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-      "position_frames": 0
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-      "utterance_id": "5350-205002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205002.flac |",
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-      "real_speaker_id": "8770",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
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-      "start_time": 30.86,
-      "speaker_id": "5350"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037341.json b/conversations/conv_037341.json
deleted file mode 100644
index 9a20a5396be65b97edd4a41a4e7fa0fa8be50a4c..0000000000000000000000000000000000000000
--- a/conversations/conv_037341.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
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-    {
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-      "real_speaker_id": "8142",
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-    {
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_037346.json b/conversations/conv_037346.json
deleted file mode 100644
index 1d160dff9ba4ac5710590d5c2e71c4305e9bf39b..0000000000000000000000000000000000000000
--- a/conversations/conv_037346.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "3148",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
-      "real_speaker_id": "1414",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037350.json b/conversations/conv_037350.json
deleted file mode 100644
index 8116ed45328e070f5610ce9918f3d1d242fbebbf..0000000000000000000000000000000000000000
--- a/conversations/conv_037350.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8447-286248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286248.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "position_frames": 0
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-      "utterance_id": "92-6488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
-      "real_speaker_id": "92",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.518250412915677,
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-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.079609000508277,
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-      "utterance_id": "8447-286257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286257.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.72385935653753,
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-      "duration": 2.276140643462469,
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-      "duration_frames": 36418,
-      "overlap": false,
-      "utterance_id": "92-6488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
-      "real_speaker_id": "92",
-      "position_frames": 50161
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037357.json b/conversations/conv_037357.json
deleted file mode 100644
index c45d3a874ac91c92fd24833f095cdcc11887deb6..0000000000000000000000000000000000000000
--- a/conversations/conv_037357.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-30101.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
-    },
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-      "real_speaker_id": "5712",
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-    {
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-      "utterance_id": "5712-48848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48848.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.20491528380197,
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-      "utterance_id": "5712-48842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48842.flac |",
-      "real_speaker_id": "5712",
-      "position_frames": 162854
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "speaker_id": "5712"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037366.json b/conversations/conv_037366.json
deleted file mode 100644
index 673cfdc34aa7761f21defb8f5dcceda07b7be915..0000000000000000000000000000000000000000
--- a/conversations/conv_037366.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8625-295957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-295957.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8625",
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-      "real_speaker_id": "55",
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-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037370.json b/conversations/conv_037370.json
deleted file mode 100644
index a93682701a07b61517c76c601297bf3b4d96f0e2..0000000000000000000000000000000000000000
--- a/conversations/conv_037370.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "3852",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
-      "position_frames": 57614
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_18.wav",
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-      "event_class": "laugh",
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-      "start_time": 21.15048316230631,
-      "speaker_id": "5655"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037382.json b/conversations/conv_037382.json
deleted file mode 100644
index 74bf80d68faa06e4d3471d7464de5107d88ceb48..0000000000000000000000000000000000000000
--- a/conversations/conv_037382.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6272-70191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70191.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.374100644870362,
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-      "real_speaker_id": "8635",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70191.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 105543
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-      "utterance_id": "8635-295759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295759.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.1914571684911,
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-      "utterance_id": "6272-70191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70191.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 168936
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.68989901341343,
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-      "start_frame": 459038,
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-      "utterance_id": "8635-295756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295756.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 74393
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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\ No newline at end of file
diff --git a/conversations/conv_037385.json b/conversations/conv_037385.json
deleted file mode 100644
index 28701ca622a5ec2f8c9aa1d38b567098426ab01f..0000000000000000000000000000000000000000
--- a/conversations/conv_037385.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7939-120330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120330.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
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-      "utterance_id": "7939-120325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120325.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
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-      "utterance_id": "613-128284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-128284.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.46865792880097,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120330.flac |",
-      "real_speaker_id": "7939",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 78283
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037389.json b/conversations/conv_037389.json
deleted file mode 100644
index 597fb3d3be99f0253d2722b0370cf9e536abfbd0..0000000000000000000000000000000000000000
--- a/conversations/conv_037389.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-41933.flac |",
-      "real_speaker_id": "4427",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "4427",
-      "position_frames": 55419
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "foreground_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037392.json b/conversations/conv_037392.json
deleted file mode 100644
index 09cd6928f481a4a14048903b25cc2d6b7e72c74d..0000000000000000000000000000000000000000
--- a/conversations/conv_037392.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3830-12529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12529.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.253946891243938,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12531.flac |",
-      "real_speaker_id": "3830",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.173220216176821,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.805300175004994,
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-      "overlap": true,
-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.116310256299663,
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-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
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-      "position_frames": 93817
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3830/laugh/0000.wav",
-      "duration": 1.32,
-      "start_time": 1.6488272081857938,
-      "speaker_id": "3830"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3168/laugh/0034.wav",
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-      "duration": 1.1128402728412174,
-      "start_time": 28.667954153511307,
-      "speaker_id": "3168"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037393.json b/conversations/conv_037393.json
deleted file mode 100644
index ec3e7f52383bc93e260bac5b75b4006a8955f32a..0000000000000000000000000000000000000000
--- a/conversations/conv_037393.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.466848989861973,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.128224035857119,
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-      "overlap": false,
-      "utterance_id": "3224-168198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168198.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.589430935509429,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.542221698895371,
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-      "utterance_id": "3224-168204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168204.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 14.3259381183242,
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-      "duration_frames": 98976,
-      "overlap": false,
-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 75190
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.172633035632725,
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-      "utterance_id": "3224-168199",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168199.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.33071093085145,
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-      "duration": 4.1361380590105234,
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-      "duration_frames": 66178,
-      "overlap": true,
-      "utterance_id": "2751-142362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142362.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3224/cough/0048.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037404.json b/conversations/conv_037404.json
deleted file mode 100644
index fdeb6e1ce9c388387a028f28811f35464b3a0291..0000000000000000000000000000000000000000
--- a/conversations/conv_037404.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.392299085504515,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3780-177784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177784.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.014057915170125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "3780-177782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177782.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.148539539929555,
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-      "overlap": false,
-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.360566597428903,
-      "end_time": 25.52403912109095,
-      "duration": 4.163472523662048,
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-      "duration_frames": 66615,
-      "overlap": false,
-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 79515
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.83184673502883,
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-      "overlap": false,
-      "utterance_id": "3780-177788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177788.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 6.80139467715487,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/laugh/0057.wav",
-      "duration": 1.44,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/cough/0130.wav",
-      "duration": 0.3592963683374241,
-      "start_time": 20.953158334256358,
-      "speaker_id": "4667"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037405.json b/conversations/conv_037405.json
deleted file mode 100644
index 0c60de200ff2d4333aa94221b524210a4a6641a9..0000000000000000000000000000000000000000
--- a/conversations/conv_037405.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.35823409036807,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.262547648525083,
-      "duration": 5.262547648525083,
-      "start_frame": 0,
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-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.137751146290368,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.002110851485048,
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-      "duration_frames": 102439,
-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 84200
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "14-212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-212.flac |",
-      "real_speaker_id": "14",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 186639
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.86188099915524,
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-      "duration_frames": 87941,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 52958
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/cough/0026.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/14/cough/0032.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2741/laugh/0081.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037409.json b/conversations/conv_037409.json
deleted file mode 100644
index 2666316dcd20a891e1a289fee979b5b95e52b478..0000000000000000000000000000000000000000
--- a/conversations/conv_037409.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.608744604195593,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.093686992126601,
-      "duration": 4.093686992126601,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-26496.flac |",
-      "real_speaker_id": "5093",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.051663793339245,
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-      "position_frames": 71932
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-      "speaker_id": "6081"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037413.json b/conversations/conv_037413.json
deleted file mode 100644
index 27936086063710dfd8721a601ef1564d2cecc24a..0000000000000000000000000000000000000000
--- a/conversations/conv_037413.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.1680612542636135,
-      "duration": 6.1680612542636135,
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-      "utterance_id": "6281-65531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 6.662535956541471,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2045-158081.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8050-110238.flac |",
-      "real_speaker_id": "8050",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2045-158081.flac |",
-      "real_speaker_id": "2045",
-      "position_frames": 87430
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "start_frame": 459715,
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-      "overlap": false,
-      "utterance_id": "6281-1315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_037425.json b/conversations/conv_037425.json
deleted file mode 100644
index beeea8e23be3cb0260407e9ede6208e9e701d40c..0000000000000000000000000000000000000000
--- a/conversations/conv_037425.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "1097-136910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136910.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "1097",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "3503",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1097-136955",
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-  "background_events": [],
-  "foreground_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1097/laugh/0096.wav",
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-      "start_time": 30.24,
-      "speaker_id": "1097"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037429.json b/conversations/conv_037429.json
deleted file mode 100644
index fe07b4aa3accb50a50798c9c62d54d5cf7d2b064..0000000000000000000000000000000000000000
--- a/conversations/conv_037429.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1870-164323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164323.flac |",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1870/laugh/0098.wav",
-      "duration": 0.6137928883368808,
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-      "speaker_id": "1870"
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-      "event_class": "cough",
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-      "duration": 1.1005805120780363,
-      "start_time": 21.040756633851572,
-      "speaker_id": "1870"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037433.json b/conversations/conv_037433.json
deleted file mode 100644
index 73d838a56c411d38b5ee7f789514080c76c2684d..0000000000000000000000000000000000000000
--- a/conversations/conv_037433.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 4.701534586829589,
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-      "duration_frames": 75224,
-      "overlap": false,
-      "utterance_id": "3185-163505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163505.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.539335122005324,
-      "end_time": 9.662699959256654,
-      "duration": 4.12336483725133,
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-      "duration_frames": 65973,
-      "overlap": false,
-      "utterance_id": "1124-132846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1124-132846.flac |",
-      "real_speaker_id": "1124",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.47496388128268,
-      "end_time": 17.097964853618386,
-      "duration": 6.6230009723357055,
-      "start_frame": 167599,
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-      "overlap": false,
-      "utterance_id": "1795-142412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1795-142412.flac |",
-      "real_speaker_id": "1795",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.15035392014341,
-      "end_time": 25.144343560271288,
-      "duration": 6.9939896401278805,
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-      "duration_frames": 111903,
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-      "utterance_id": "3185-163505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163505.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 75224
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.920954956095784,
-      "end_time": 32.0,
-      "duration": 6.079045043904216,
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-      "utterance_id": "1795-142412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1795-142412.flac |",
-      "real_speaker_id": "1795",
-      "position_frames": 105968
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 4.543174542477763,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3185/laugh/0063.wav",
-      "duration": 0.84,
-      "start_time": 25.44430557776634,
-      "speaker_id": "3185"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3185/cough/0096.wav",
-      "duration": 1.16,
-      "start_time": 25.196165957344242,
-      "speaker_id": "3185"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037438.json b/conversations/conv_037438.json
deleted file mode 100644
index 13fdfaf2987f873316fdf44bd3731cf78ea20dc7..0000000000000000000000000000000000000000
--- a/conversations/conv_037438.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.111242940009443,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7510-282529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282529.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6120-14976.flac |",
-      "real_speaker_id": "6120",
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-      "utterance_id": "460-172357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172357.flac |",
-      "real_speaker_id": "460",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282529.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 70632
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.98554141712788,
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-      "duration": 4.513984001327016,
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-      "utterance_id": "6120-14976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6120-14976.flac |",
-      "real_speaker_id": "6120",
-      "position_frames": 102010
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "7510-282528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282528.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_037444.json b/conversations/conv_037444.json
deleted file mode 100644
index 205b049d47a56a4e25f2408459e6677acb410aab..0000000000000000000000000000000000000000
--- a/conversations/conv_037444.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.72740207177972,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1685-146849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146849.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146849.flac |",
-      "real_speaker_id": "1685",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
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-    {
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-      "utterance_id": "8855-283242",
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-      "position_frames": 0
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-  ],
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-}
\ No newline at end of file
diff --git a/conversations/conv_037448.json b/conversations/conv_037448.json
deleted file mode 100644
index 847bd1ab904373f0b3d87f69b3e5a1ff9c6057c1..0000000000000000000000000000000000000000
--- a/conversations/conv_037448.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_037452.json b/conversations/conv_037452.json
deleted file mode 100644
index 02f2a58cdf173f85c5e74b7da37e0394c5dcb822..0000000000000000000000000000000000000000
--- a/conversations/conv_037452.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.452828307349627,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
-      "position_frames": 0
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-      "start_time": 12.39388501941927,
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-      "utterance_id": "2975-151995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.426791163881724,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
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-      "position_frames": 146731
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037453.json b/conversations/conv_037453.json
deleted file mode 100644
index e95cbaf9ebca7497efbfab5f4dd43a2ed70fb143..0000000000000000000000000000000000000000
--- a/conversations/conv_037453.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92202.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 85047
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-86748.flac |",
-      "real_speaker_id": "7348",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92200.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_037464.json b/conversations/conv_037464.json
deleted file mode 100644
index 9ae1abea63fd5f903f39e05c723f0c629932674b..0000000000000000000000000000000000000000
--- a/conversations/conv_037464.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "489",
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-      "position_frames": 78203
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_037468.json b/conversations/conv_037468.json
deleted file mode 100644
index bb5837bfeb4f5ba1dcab6b650b496e39da181f68..0000000000000000000000000000000000000000
--- a/conversations/conv_037468.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "337-123025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/337-123025.flac |",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8771/laugh/0025.wav",
-      "duration": 1.16,
-      "start_time": 22.970392960270992,
-      "speaker_id": "8771"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037472.json b/conversations/conv_037472.json
deleted file mode 100644
index d77a769144022a8e95e5e6e0caaabe14588cad91..0000000000000000000000000000000000000000
--- a/conversations/conv_037472.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.396437889048135,
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-      "duration": 5.797236788747769,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.856842537349248,
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-      "duration": 3.1833028478305536,
-      "start_frame": 189709,
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-      "overlap": false,
-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 79517
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.173257346624498,
-      "end_time": 20.205286715673804,
-      "duration": 5.032029369049307,
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-      "duration_frames": 80512,
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-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 92755
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.137048104749557,
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-      "utterance_id": "911-128684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-128684.flac |",
-      "real_speaker_id": "911",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.630623845265642,
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-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 173267
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-    {
-      "event_class": "Cat",
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-      "duration": 0.4758730158730159,
-      "start_time": 30.590517385621236
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_037479.json b/conversations/conv_037479.json
deleted file mode 100644
index 5e45f272cd820436fc371430a416f1b36f92768f..0000000000000000000000000000000000000000
--- a/conversations/conv_037479.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7135-2346.flac |",
-      "real_speaker_id": "7135",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142286.flac |",
-      "real_speaker_id": "250",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7135-80032.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.522966253881215,
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-      "utterance_id": "250-142286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142286.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 60144
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.611616526199455,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 85885
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "start_time": 29.268834353300164,
-      "speaker_id": "250"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037480.json b/conversations/conv_037480.json
deleted file mode 100644
index 2303fea766961dfe822c10d97ad35a3ee34cb2fc..0000000000000000000000000000000000000000
--- a/conversations/conv_037480.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3546-9342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-9342.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152264.flac |",
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-      "real_speaker_id": "826",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "position_frames": 0
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-      "real_speaker_id": "826",
-      "position_frames": 111391
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
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-  ],
-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_037487.json b/conversations/conv_037487.json
deleted file mode 100644
index a922f129703d86ac96a9aaf9dc382cd935acf1f2..0000000000000000000000000000000000000000
--- a/conversations/conv_037487.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-150468.flac |",
-      "real_speaker_id": "705",
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-    {
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-      "real_speaker_id": "953",
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-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_037491.json b/conversations/conv_037491.json
deleted file mode 100644
index 2b06c614d3a5e917f9eee7c3ff779d489cd51c6a..0000000000000000000000000000000000000000
--- a/conversations/conv_037491.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.136531478304894,
-      "duration": 5.136531478304894,
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-      "overlap": false,
-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.648639321946304,
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-      "duration": 5.8098890419510125,
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-      "duration_frames": 92958,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2504-154289.flac |",
-      "real_speaker_id": "2504",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.760681263139235,
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-      "duration": 5.182324709534829,
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-      "overlap": false,
-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 82184
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.403461911806822,
-      "end_time": 23.687170907220818,
-      "duration": 6.283708995413997,
-      "start_frame": 278455,
-      "duration_frames": 100539,
-      "overlap": false,
-      "utterance_id": "1066-5330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-5330.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.71711347134655,
-      "end_time": 29.721263356649942,
-      "duration": 5.004149885303393,
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-      "duration_frames": 80066,
-      "overlap": false,
-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 165101
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.755694401143973,
-      "end_time": 32.0,
-      "duration": 1.2443055988560268,
-      "start_frame": 492091,
-      "duration_frames": 19908,
-      "overlap": false,
-      "utterance_id": "2504-154288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2504-154288.flac |",
-      "real_speaker_id": "2504",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3114/cough/0028.wav",
-      "duration": 0.9854055136341078,
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-      "speaker_id": "3114"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2504/cough/0058.wav",
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-      "start_time": 30.92011240683372,
-      "speaker_id": "2504"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037496.json b/conversations/conv_037496.json
deleted file mode 100644
index ae8da5e235ba70819299415717f95f69d6c937db..0000000000000000000000000000000000000000
--- a/conversations/conv_037496.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6513-71944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71944.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.449725061563243,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 0
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-      "utterance_id": "6513-67788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-67788.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.423436903796564,
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-      "duration": 5.191778916808321,
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-      "overlap": false,
-      "utterance_id": "6568-79375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-79375.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.908281356978755,
-      "end_time": 28.156056682212537,
-      "duration": 3.2477753252337807,
-      "start_frame": 398532,
-      "duration_frames": 51964,
-      "overlap": false,
-      "utterance_id": "6513-71944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71944.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 85194
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.488646232224447,
-      "end_time": 32.0,
-      "duration": 3.511353767775553,
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-      "overlap": false,
-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 87473
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3911/cough/0034.wav",
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-      "start_time": 10.932095371236596,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3911/laugh/0079.wav",
-      "duration": 0.9919120076408716,
-      "start_time": 31.00808799235913,
-      "speaker_id": "3911"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037501.json b/conversations/conv_037501.json
deleted file mode 100644
index 5efbdc4645dde99ccebbfbdf8d985340e926b0ed..0000000000000000000000000000000000000000
--- a/conversations/conv_037501.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_frame": 0,
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-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118165.flac |",
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-      "position_frames": 0
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-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
-      "real_speaker_id": "8718",
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-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8087-118726",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118726.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "speaker_id": "8718"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8087/laugh/0010.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8087/laugh/0019.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037516.json b/conversations/conv_037516.json
deleted file mode 100644
index 8d19a751b69e6ac89814a451f976d05ed0f12e33..0000000000000000000000000000000000000000
--- a/conversations/conv_037516.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
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-    {
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-  "foreground_events": [
-    {
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-      "duration": 0.94,
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-      "speaker_id": "2046"
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-      "start_time": 29.11180262506608,
-      "speaker_id": "8468"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037517.json b/conversations/conv_037517.json
deleted file mode 100644
index 14dc6aaf5ad61f614b0073190b75619a115a73f5..0000000000000000000000000000000000000000
--- a/conversations/conv_037517.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "1401-14358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-14358.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.990953484141545,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-174511.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-14358.flac |",
-      "real_speaker_id": "1401",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1175-126221.flac |",
-      "real_speaker_id": "1175",
-      "position_frames": 61827
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-174511.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037521.json b/conversations/conv_037521.json
deleted file mode 100644
index 3bf56a14ba5cd6c824c09b25693ed064125466e4..0000000000000000000000000000000000000000
--- a/conversations/conv_037521.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-270794.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7794",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-270794.flac |",
-      "real_speaker_id": "8799",
-      "position_frames": 140361
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7794-295947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295947.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 1.4589410180848645,
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-      "utterance_id": "8799-270794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-270794.flac |",
-      "real_speaker_id": "8799",
-      "position_frames": 232972
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.87947384643753,
-      "start_time": 28.61655451969237,
-      "speaker_id": "8799"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037537.json b/conversations/conv_037537.json
deleted file mode 100644
index b8f4eed82263c928be8ef280f9b094014e52a0c1..0000000000000000000000000000000000000000
--- a/conversations/conv_037537.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89167.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89167.flac |",
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-      "real_speaker_id": "4195",
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-      "position_frames": 0
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-  "background_events": [
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-  "foreground_events": [
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-      "speaker_id": "4195"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037540.json b/conversations/conv_037540.json
deleted file mode 100644
index 119edfda8bf66139731f8c511632900311b13486..0000000000000000000000000000000000000000
--- a/conversations/conv_037540.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-122810.flac |",
-      "real_speaker_id": "439",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-131220.flac |",
-      "real_speaker_id": "288",
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\ No newline at end of file
diff --git a/conversations/conv_037541.json b/conversations/conv_037541.json
deleted file mode 100644
index 95aa3da0ace74703494f29035f496ed37516dd6d..0000000000000000000000000000000000000000
--- a/conversations/conv_037541.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4902.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4901.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61780.flac |",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037556.json b/conversations/conv_037556.json
deleted file mode 100644
index 71772a6f69b8d022d350f261be8961ff381aabf0..0000000000000000000000000000000000000000
--- a/conversations/conv_037556.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1098-133695.flac |",
-      "real_speaker_id": "1098",
-      "position_frames": 195444
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 90511
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1098/laugh/0033.wav",
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-      "speaker_id": "1098"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037560.json b/conversations/conv_037560.json
deleted file mode 100644
index b70eb46e19f3fb0a6cd90e5ced06f61febf52ab4..0000000000000000000000000000000000000000
--- a/conversations/conv_037560.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7138-291944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291944.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
-      "real_speaker_id": "5239",
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-    {
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-      "position_frames": 85906
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-  "background_events": [
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-      "start_time": 4.371187420901068
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_037576.json b/conversations/conv_037576.json
deleted file mode 100644
index a7d55b4e818db0994e97158cf652cd5269968555..0000000000000000000000000000000000000000
--- a/conversations/conv_037576.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107338.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.003415920984272,
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-      "start_time": 14.153016377122695,
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-      "real_speaker_id": "3082",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-107312.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.043645305437707,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 94765
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4280/cough/0005.wav",
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-      "start_time": 7.280577176542414,
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-      "event_class": "laugh",
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-      "speaker_id": "3082"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037583.json b/conversations/conv_037583.json
deleted file mode 100644
index 841a1222f46bddcb0d2ee6f944e328cf2fdd46ce..0000000000000000000000000000000000000000
--- a/conversations/conv_037583.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.484483589137772,
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-      "start_frame": 0,
-      "duration_frames": 87751,
-      "overlap": false,
-      "utterance_id": "2979-156237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156237.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.428376078275329,
-      "end_time": 12.260698528889321,
-      "duration": 6.832322450613993,
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-      "duration_frames": 109317,
-      "overlap": true,
-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 13.858920144727668,
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-      "utterance_id": "3983-5331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.595656555567594,
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-      "utterance_id": "6529-62556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62556.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.087294084901423,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 52475
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.03983723170709,
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-      "duration": 2.9601627682929106,
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-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 109317
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_037584.json b/conversations/conv_037584.json
deleted file mode 100644
index 8a9e342a97791059429a6a65817d562aafca6398..0000000000000000000000000000000000000000
--- a/conversations/conv_037584.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.073271578935249,
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-      "real_speaker_id": "3340",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 78045
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.549791441984944,
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-      "overlap": false,
-      "utterance_id": "32-21631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21631.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.280995568802226,
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-      "real_speaker_id": "3340",
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-    {
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-      "utterance_id": "1678-142279",
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-      "real_speaker_id": "1678",
-      "position_frames": 173999
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "32"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037592.json b/conversations/conv_037592.json
deleted file mode 100644
index eba91f4022a304dd7afd9d85b07c0ecb6c4407df..0000000000000000000000000000000000000000
--- a/conversations/conv_037592.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.07575921760096,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.454874865266356,
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-      "overlap": false,
-      "utterance_id": "5940-54613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54613.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.451774288828433,
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-      "utterance_id": "497-125118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
-      "real_speaker_id": "497",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "561-126312",
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-      "real_speaker_id": "561",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_037595.json b/conversations/conv_037595.json
deleted file mode 100644
index a318c51cb76674036f1611bd30fcbd33f16bfc7a..0000000000000000000000000000000000000000
--- a/conversations/conv_037595.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "1448-135894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1448-135894.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_frame": 167254,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1448-135894.flac |",
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-      "real_speaker_id": "2068",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.76298681754143,
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-      "utterance_id": "1448-135894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1448-135894.flac |",
-      "real_speaker_id": "1448",
-      "position_frames": 216865
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.33908013783936,
-      "end_time": 32.0,
-      "duration": 3.6609198621606396,
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-      "utterance_id": "1121-135824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1121-135824.flac |",
-      "real_speaker_id": "1121",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.9,
-      "start_time": 4.202287871168597,
-      "speaker_id": "2068"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.06,
-      "start_time": 24.911217174575587,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037599.json b/conversations/conv_037599.json
deleted file mode 100644
index 4f7a7f43a43bb8925a904d0f7907e5d741d58b27..0000000000000000000000000000000000000000
--- a/conversations/conv_037599.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.06758443698214,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.3519278731656525,
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-      "overlap": false,
-      "utterance_id": "5985-300208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-300208.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.534424340274647,
-      "end_time": 10.16153944343267,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8050-110238.flac |",
-      "real_speaker_id": "8050",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4063-12915.flac |",
-      "real_speaker_id": "4063",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4063-12915.flac |",
-      "real_speaker_id": "4063",
-      "position_frames": 94544
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-63885.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "speaker_id": "4063"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037603.json b/conversations/conv_037603.json
deleted file mode 100644
index 9baa52e30f9805bb2170fb65c846e4b046802d38..0000000000000000000000000000000000000000
--- a/conversations/conv_037603.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-143321.flac |",
-      "real_speaker_id": "207",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
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-      "position_frames": 64732
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "207-122801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-122801.flac |",
-      "real_speaker_id": "207",
-      "position_frames": 50234
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 2.3740908541020964,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-131203.flac |",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 30.705855017469727,
-      "speaker_id": "207"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037604.json b/conversations/conv_037604.json
deleted file mode 100644
index defcda11b8e324b119aead2a6ea4ca6849276591..0000000000000000000000000000000000000000
--- a/conversations/conv_037604.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "3598-173222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3598-173222.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
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-    {
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-  "foreground_events": [
-    {
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-      "event_class": "Blender",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3598/cough/0066.wav",
-      "duration": 0.41017768442986885,
-      "start_time": 4.622130025747296,
-      "speaker_id": "3598"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3598/laugh/0046.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "3598"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037608.json b/conversations/conv_037608.json
deleted file mode 100644
index d22f658b36bd8c4fc0fe05ae7d3b6b20325d470c..0000000000000000000000000000000000000000
--- a/conversations/conv_037608.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.288652815317373,
-      "duration": 4.288652815317373,
-      "start_frame": 0,
-      "duration_frames": 68618,
-      "overlap": false,
-      "utterance_id": "421-124401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.192414677175648,
-      "end_time": 8.84648679134671,
-      "duration": 3.654072114171062,
-      "start_frame": 83078,
-      "duration_frames": 58465,
-      "overlap": false,
-      "utterance_id": "8329-279775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8329-279775.flac |",
-      "real_speaker_id": "8329",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.081908575311514,
-      "end_time": 14.785098414188413,
-      "duration": 4.703189838876899,
-      "start_frame": 161310,
-      "duration_frames": 75251,
-      "overlap": false,
-      "utterance_id": "3486-166424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.006228858033808,
-      "end_time": 18.229652126505243,
-      "duration": 3.223423268471434,
-      "start_frame": 240099,
-      "duration_frames": 51574,
-      "overlap": false,
-      "utterance_id": "8329-279775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8329-279775.flac |",
-      "real_speaker_id": "8329",
-      "position_frames": 58465
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.635458669320244,
-      "end_time": 22.826476900277,
-      "duration": 4.191018230956759,
-      "start_frame": 298167,
-      "duration_frames": 67056,
-      "overlap": false,
-      "utterance_id": "421-124401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 68618
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.445463500720408,
-      "end_time": 28.672279846030506,
-      "duration": 5.226816345310098,
-      "start_frame": 375127,
-      "duration_frames": 83629,
-      "overlap": false,
-      "utterance_id": "3486-166424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3486-166424.flac |",
-      "real_speaker_id": "3486",
-      "position_frames": 75251
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.019211263665227,
-      "end_time": 32.0,
-      "duration": 2.980788736334773,
-      "start_frame": 464307,
-      "duration_frames": 47692,
-      "overlap": false,
-      "utterance_id": "421-124401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 135674
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 14.889648096134692,
-      "start_time": 12.3608902331167
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
-      "duration": 4.079130776962922,
-      "start_time": 17.703565595391986
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_11.wav",
-      "duration": 1.0354648526077097,
-      "start_time": 19.878697435266943
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/421/laugh/0133.wav",
-      "duration": 0.5731122762485044,
-      "start_time": 0,
-      "speaker_id": "421"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8329/cough/0071.wav",
-      "duration": 1.2,
-      "start_time": 18.400013821299897,
-      "speaker_id": "8329"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/421/cough/0133.wav",
-      "duration": 1.2658862665576336,
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-      "speaker_id": "421"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3486/cough/0116.wav",
-      "duration": 0.5841780330416935,
-      "start_time": 22.708635825751013,
-      "speaker_id": "3486"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/421/laugh/0032.wav",
-      "duration": 1.16,
-      "start_time": 27.58149223951945,
-      "speaker_id": "421"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037612.json b/conversations/conv_037612.json
deleted file mode 100644
index eb0f056325d576c8a797380b7b8f68f70ead3a3c..0000000000000000000000000000000000000000
--- a/conversations/conv_037612.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.992579743407542,
-      "duration": 4.992579743407542,
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-      "overlap": false,
-      "utterance_id": "1607-149245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-149245.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.209867451539368,
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-      "duration": 5.620993872474214,
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-      "duration_frames": 89935,
-      "overlap": false,
-      "utterance_id": "666-11243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11243.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.557130898454535,
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-      "duration": 4.901205076153569,
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-      "duration_frames": 78419,
-      "overlap": false,
-      "utterance_id": "1607-150715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-150715.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.175695863494038,
-      "end_time": 22.801361216892367,
-      "duration": 5.625665353398329,
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-      "duration_frames": 90010,
-      "overlap": false,
-      "utterance_id": "666-11244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.148170395017054,
-      "end_time": 26.830224809484573,
-      "duration": 3.682054414467518,
-      "start_frame": 370370,
-      "duration_frames": 58912,
-      "overlap": false,
-      "utterance_id": "1331-155892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155892.flac |",
-      "real_speaker_id": "1331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.56121346371906,
-      "end_time": 32.0,
-      "duration": 4.43878653628094,
-      "start_frame": 440979,
-      "duration_frames": 71020,
-      "overlap": false,
-      "utterance_id": "666-11244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 90010
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 11.702253735470428,
-      "start_time": 16.21974809867915
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
-      "duration": 1.8738545494389363,
-      "start_time": 29.744225151071763
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/666/laugh/0096.wav",
-      "duration": 0.6982835757173937,
-      "start_time": 20.59072179315012,
-      "speaker_id": "666"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/666/cough/0019.wav",
-      "duration": 0.460782270246228,
-      "start_time": 22.952915766786766,
-      "speaker_id": "666"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1331/laugh/0079.wav",
-      "duration": 1.36,
-      "start_time": 23.37879197228909,
-      "speaker_id": "1331"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037615.json b/conversations/conv_037615.json
deleted file mode 100644
index 80f1fdaf6cd37b680c7d321701d9bb2d0cadbb4c..0000000000000000000000000000000000000000
--- a/conversations/conv_037615.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.023067175060124,
-      "duration": 4.023067175060124,
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-      "utterance_id": "3879-173592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "3879-174923",
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-      "real_speaker_id": "3879",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "6147-34605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6147-34605.flac |",
-      "real_speaker_id": "6147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.19151316687492,
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-      "duration_frames": 82475,
-      "overlap": false,
-      "utterance_id": "3879-174923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-174923.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 83829
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2312-157868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2312-157868.flac |",
-      "real_speaker_id": "2312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.6010876035505,
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-      "duration": 4.325393810183751,
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-      "utterance_id": "3879-173592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 64369
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.296213601417346,
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-      "duration": 1.703786398582654,
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-      "utterance_id": "2312-147629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2312-147629.flac |",
-      "real_speaker_id": "2312",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_8.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "speaker_id": "2312"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037624.json b/conversations/conv_037624.json
deleted file mode 100644
index 457db696fbc7f34fe9419f190991c173767b45e8..0000000000000000000000000000000000000000
--- a/conversations/conv_037624.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "end_time": 4.7951859284471094,
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-      "utterance_id": "8536-244442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8536-244442.flac |",
-      "real_speaker_id": "8536",
-      "position_frames": 0
-    },
-    {
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-      "segment_id": "seg0002",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-208.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7297-275885.flac |",
-      "real_speaker_id": "7297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.45609826739082,
-      "end_time": 32.0,
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-      "duration_frames": 88702,
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-      "utterance_id": "14-212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/14-212.flac |",
-      "real_speaker_id": "14",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7297/cough/0066.wav",
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-      "speaker_id": "7297"
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-      "event_class": "laugh",
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-      "duration": 0.8372907672846932,
-      "start_time": 26.67896843405718,
-      "speaker_id": "14"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037628.json b/conversations/conv_037628.json
deleted file mode 100644
index 470e38aede403dec1fde692a5df585bb8abbe073..0000000000000000000000000000000000000000
--- a/conversations/conv_037628.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.284221887189881,
-      "duration": 6.284221887189881,
-      "start_frame": 0,
-      "duration_frames": 100547,
-      "overlap": false,
-      "utterance_id": "7069-246893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246893.flac |",
-      "real_speaker_id": "7069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.833170633507851,
-      "end_time": 10.66456773008006,
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-      "duration_frames": 61302,
-      "overlap": false,
-      "utterance_id": "1924-132574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132574.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.921084815891735,
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-      "overlap": false,
-      "utterance_id": "7069-246889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246889.flac |",
-      "real_speaker_id": "7069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.144234480036417,
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-      "duration": 4.177342642611366,
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-      "duration_frames": 66837,
-      "overlap": false,
-      "utterance_id": "7069-246889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246889.flac |",
-      "real_speaker_id": "7069",
-      "position_frames": 89801
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.29465809140353,
-      "end_time": 28.50371450954532,
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-      "duration_frames": 99344,
-      "overlap": false,
-      "utterance_id": "1084-145077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-145077.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.966259589436472,
-      "end_time": 32.0,
-      "duration": 2.033740410563528,
-      "start_frame": 479460,
-      "duration_frames": 32539,
-      "overlap": false,
-      "utterance_id": "1084-139230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-139230.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 25.74705215419501,
-      "start_time": 5.92061768806685
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1924/laugh/0026.wav",
-      "duration": 1.4,
-      "start_time": 7.373109232198958,
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-    },
-    {
-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 17.4606008757787,
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-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 15.757101033396998,
-      "speaker_id": "7069"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 23.227014178784337,
-      "speaker_id": "1084"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037632.json b/conversations/conv_037632.json
deleted file mode 100644
index 7543b68bbe9f451440590ad32d59858b2431c38d..0000000000000000000000000000000000000000
--- a/conversations/conv_037632.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.034105432550054,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 88648
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7520-258986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.677254906074026,
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-      "duration_frames": 49620,
-      "overlap": false,
-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 171695
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "836-131106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-131106.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.329518784286524,
-      "end_time": 32.0,
-      "duration": 2.670481215713476,
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-      "utterance_id": "7520-258986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 75257
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7520/laugh/0045.wav",
-      "duration": 0.5366842296859848,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6685/laugh/0022.wav",
-      "duration": 1.8,
-      "start_time": 24.034589897824638,
-      "speaker_id": "6685"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/836/laugh/0090.wav",
-      "duration": 1.231932334228353,
-      "start_time": 26.76676926079068,
-      "speaker_id": "836"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037642.json b/conversations/conv_037642.json
deleted file mode 100644
index 72bcfba5d269d16f714b322e27dc2d184763aeaf..0000000000000000000000000000000000000000
--- a/conversations/conv_037642.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.712109166515043,
-      "duration": 5.712109166515043,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2827-170440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170440.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.210907422160592,
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-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2827-170438",
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-      "real_speaker_id": "2827",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 24.99081275491149,
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-      "duration_frames": 64480,
-      "overlap": true,
-      "utterance_id": "6726-56640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.256139206954295,
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-      "duration": 1.7438607930457053,
-      "start_frame": 484098,
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-      "overlap": false,
-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 96330
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2827/laugh/0079.wav",
-      "duration": 1.24,
-      "start_time": 5.926884527853774,
-      "speaker_id": "2827"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/583/cough/0041.wav",
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-      "start_time": 17.449228778073568,
-      "speaker_id": "583"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037645.json b/conversations/conv_037645.json
deleted file mode 100644
index d1f554614fbec402d55851c07e01aeb5283ea937..0000000000000000000000000000000000000000
--- a/conversations/conv_037645.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "2195-150901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150901.flac |",
-      "real_speaker_id": "2195",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_037649.json b/conversations/conv_037649.json
deleted file mode 100644
index 2fbb3b272246e5dec257601637d16454869f5e3a..0000000000000000000000000000000000000000
--- a/conversations/conv_037649.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1012-133424.flac |",
-      "real_speaker_id": "1012",
-      "position_frames": 0
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-      "start_time": 3.599766076691605,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
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-      "overlap": false,
-      "utterance_id": "7932-110056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7932-110056.flac |",
-      "real_speaker_id": "7932",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1012-133424.flac |",
-      "real_speaker_id": "1012",
-      "position_frames": 52827
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-      "segment_id": "seg0004",
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-      "start_time": 21.856285503240223,
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-      "real_speaker_id": "258",
-      "position_frames": 0
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-      "real_speaker_id": "7932",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_037653.json b/conversations/conv_037653.json
deleted file mode 100644
index a1e6d38d4a390f95401fc42375813b5c5fb6cd21..0000000000000000000000000000000000000000
--- a/conversations/conv_037653.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 99258
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-266250.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.983804083092636,
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-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 185195
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8296-279865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-279865.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 110052
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "1704"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037654.json b/conversations/conv_037654.json
deleted file mode 100644
index 71fd1cfeddd6f4a5ad729910725b7ba04832a8c1..0000000000000000000000000000000000000000
--- a/conversations/conv_037654.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2148-6983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6983.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1859-145701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145701.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6979.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5911-48574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-48574.flac |",
-      "real_speaker_id": "5911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1859-145701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145701.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 100143
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2148/laugh/0096.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2148/laugh/0164.wav",
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-      "start_time": 19.880199135410276,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1859/laugh/0084.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1859/cough/0068.wav",
-      "duration": 1.3847168131694596,
-      "start_time": 30.615283186830542,
-      "speaker_id": "1859"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037665.json b/conversations/conv_037665.json
deleted file mode 100644
index 61303a199ad53dca33565733f14fbc05a10a9ab2..0000000000000000000000000000000000000000
--- a/conversations/conv_037665.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_037668.json b/conversations/conv_037668.json
deleted file mode 100644
index d4bca7fc59f3857f701947b9eed73c9d486a671e..0000000000000000000000000000000000000000
--- a/conversations/conv_037668.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "4381-14897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14897.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7942",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-292240.flac |",
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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\ No newline at end of file
diff --git a/conversations/conv_037669.json b/conversations/conv_037669.json
deleted file mode 100644
index fe166b2c354adfc4caa3db2a2e80b1609e2edd02..0000000000000000000000000000000000000000
--- a/conversations/conv_037669.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_037673.json b/conversations/conv_037673.json
deleted file mode 100644
index 513bf6ec3caf1ae367d06c5a88f5f7fc6c2d7cd2..0000000000000000000000000000000000000000
--- a/conversations/conv_037673.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-287660.flac |",
-      "real_speaker_id": "8506",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "speaker_id": "1355"
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-      "speaker_id": "8825"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037678.json b/conversations/conv_037678.json
deleted file mode 100644
index aa442bf67b3217a2ad92fc616de30bd6aaa56484..0000000000000000000000000000000000000000
--- a/conversations/conv_037678.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.45504023962107,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.756238830892874,
-      "duration": 5.756238830892874,
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-      "overlap": false,
-      "utterance_id": "7607-89899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
-      "real_speaker_id": "7607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.323769533617058,
-      "end_time": 13.188697883363343,
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-      "utterance_id": "3289-171107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171107.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7607-89899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7607-89899.flac |",
-      "real_speaker_id": "7607",
-      "position_frames": 92099
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.056279097324193,
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-      "duration": 6.010055200283105,
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-      "utterance_id": "3289-171107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171107.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 109838
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.3370164116023,
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-      "duration": 3.1124220049420614,
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-      "duration_frames": 49798,
-      "overlap": false,
-      "utterance_id": "152-87733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-87733.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.587525018127312,
-      "end_time": 31.45504023962107,
-      "duration": 2.8675152214937576,
-      "start_frame": 457400,
-      "duration_frames": 45880,
-      "overlap": true,
-      "utterance_id": "3289-171108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171108.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
-      "duration": 0.672108843537415,
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7607/laugh/0024.wav",
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-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "3289"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037686.json b/conversations/conv_037686.json
deleted file mode 100644
index 971be6c2d87ddd4998bbd897dae989c133bd9b17..0000000000000000000000000000000000000000
--- a/conversations/conv_037686.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.73268202267695,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8644-262282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262282.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.683813041366741,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
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-      "real_speaker_id": "8644",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 99384
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 61703
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 13.100464409974267,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/278/laugh/0090.wav",
-      "duration": 1.56,
-      "start_time": 17.167276668144734,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/278/cough/0060.wav",
-      "duration": 1.0918370147705614,
-      "start_time": 16.578828572656025,
-      "speaker_id": "278"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037687.json b/conversations/conv_037687.json
deleted file mode 100644
index 78dc8110fffc8a4c1b5b976fc8e9b8c3888f8b7c..0000000000000000000000000000000000000000
--- a/conversations/conv_037687.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1422-146111",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1422-146111.flac |",
-      "real_speaker_id": "1422",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6643-67857.flac |",
-      "real_speaker_id": "6643",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7520",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1422-146111.flac |",
-      "real_speaker_id": "1422",
-      "position_frames": 60783
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-    {
-      "segment_id": "seg0005",
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-      "end_time": 32.0,
-      "duration": 0.4311839421978192,
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-      "utterance_id": "7520-258954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1422/laugh/0010.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1422/laugh/0012.wav",
-      "duration": 1.14,
-      "start_time": 24.957693674429002,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7520/laugh/0026.wav",
-      "duration": 1.12,
-      "start_time": 30.400476941051085,
-      "speaker_id": "7520"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037690.json b/conversations/conv_037690.json
deleted file mode 100644
index aded1c18e7e9bfbc68f56d5c33530c0c922d3846..0000000000000000000000000000000000000000
--- a/conversations/conv_037690.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-125137.flac |",
-      "real_speaker_id": "978",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-      "duration": 1.32,
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-      "speaker_id": "6962"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037697.json b/conversations/conv_037697.json
deleted file mode 100644
index b61626209aa62afbf3640ddfe3ac694bdc30c607..0000000000000000000000000000000000000000
--- a/conversations/conv_037697.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152267.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.205381569492472,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.794706928760785,
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-      "overlap": false,
-      "utterance_id": "2272-152262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152262.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.63581120292376,
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-      "utterance_id": "2272-152265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152265.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 21.080902281051053,
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-      "utterance_id": "2272-152264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152264.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.49648358269656,
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-      "utterance_id": "6746-72302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6746-72302.flac |",
-      "real_speaker_id": "6746",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_2.wav",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_037700.json b/conversations/conv_037700.json
deleted file mode 100644
index 0b789490f872b3e0b36ba6e2fa7d6c76d38feeed..0000000000000000000000000000000000000000
--- a/conversations/conv_037700.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123048.flac |",
-      "real_speaker_id": "362",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123013.flac |",
-      "real_speaker_id": "362",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.11135065285916,
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-      "utterance_id": "362-123049",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123049.flac |",
-      "real_speaker_id": "362",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.47615029942242,
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-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
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-      "position_frames": 69088
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037707.json b/conversations/conv_037707.json
deleted file mode 100644
index c20163568293d8d0c33fe6620df7e3d699bb6572..0000000000000000000000000000000000000000
--- a/conversations/conv_037707.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "6836-61804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61804.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34601.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "6836-76549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-76549.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14672.flac |",
-      "real_speaker_id": "3615",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "6836-61803",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.456165002418505,
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-      "overlap": false,
-      "utterance_id": "6209-34601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34601.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 85963
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_037711.json b/conversations/conv_037711.json
deleted file mode 100644
index f7b6f1e884948e308047b20af532eab19445f8a4..0000000000000000000000000000000000000000
--- a/conversations/conv_037711.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3934-102413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3934-102413.flac |",
-      "real_speaker_id": "3934",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.074026795948489,
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-      "real_speaker_id": "3934",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4599-21274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4599-21274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
-      "position_frames": 99103
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.05170391147142,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-63821.flac |",
-      "real_speaker_id": "6563",
-      "position_frames": 0
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-      "event_class": "Frying",
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-      "speaker_id": "3934"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4599/laugh/0115.wav",
-      "duration": 1.7871903143202286,
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-      "start_time": 24.31084806018136,
-      "speaker_id": "4599"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037716.json b/conversations/conv_037716.json
deleted file mode 100644
index af15dfb0c0ebb75d51eb16f00f981f4ec21e43e9..0000000000000000000000000000000000000000
--- a/conversations/conv_037716.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1933-146437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.489467029197999,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 0
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-      "utterance_id": "1933-146437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 99596
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.16197055568552,
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-      "utterance_id": "445-123860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123860.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.239033161146438,
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-      "utterance_id": "445-123860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123860.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 79521
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.408613722321178,
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-      "utterance_id": "445-123860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123860.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 169540
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_037720.json b/conversations/conv_037720.json
deleted file mode 100644
index d26d236a233e746dbc3b72f5c9e188d6c77e0e32..0000000000000000000000000000000000000000
--- a/conversations/conv_037720.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-181692.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-38223.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-88076.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3955-38223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-38223.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 110674
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\ No newline at end of file
diff --git a/conversations/conv_037736.json b/conversations/conv_037736.json
deleted file mode 100644
index 6fc2996e3ad4b999956990cea76b7eead9aa4f19..0000000000000000000000000000000000000000
--- a/conversations/conv_037736.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
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-      "real_speaker_id": "3967",
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-      "segment_id": "seg0004",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037741.json b/conversations/conv_037741.json
deleted file mode 100644
index 1a5f22b3a9577d63de9149a1b4603d6da176bc23..0000000000000000000000000000000000000000
--- a/conversations/conv_037741.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "6727",
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-    {
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-      "utterance_id": "7315-86809",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7315-86809.flac |",
-      "real_speaker_id": "7315",
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-    {
-      "segment_id": "seg0003",
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-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "7315"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037746.json b/conversations/conv_037746.json
deleted file mode 100644
index 23d0bcc6acbdaa94a941a7eaeb6ccf17a1b14b02..0000000000000000000000000000000000000000
--- a/conversations/conv_037746.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-92420.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.720038932041895,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92174.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-111574.flac |",
-      "real_speaker_id": "6788",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-111574.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 141811
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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\ No newline at end of file
diff --git a/conversations/conv_037750.json b/conversations/conv_037750.json
deleted file mode 100644
index 902386451743d0df63de09bd4e12ad841ad35fd8..0000000000000000000000000000000000000000
--- a/conversations/conv_037750.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1806",
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-      "real_speaker_id": "4238",
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-    {
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-      "utterance_id": "5538-70919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5538-70919.flac |",
-      "real_speaker_id": "5538",
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-      "utterance_id": "1806-2536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-2536.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 108384
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-      "speaker_id": "1806"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037757.json b/conversations/conv_037757.json
deleted file mode 100644
index d341cc1c461caba94600eeacf0360698079bd829..0000000000000000000000000000000000000000
--- a/conversations/conv_037757.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8328-280925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-289453.flac |",
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-      "real_speaker_id": "3691",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
-      "position_frames": 90274
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.068535966121924,
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-      "real_speaker_id": "559",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.383702759649246,
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-      "utterance_id": "3691-178118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178118.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_037761.json b/conversations/conv_037761.json
deleted file mode 100644
index 48a9ba971172c8fd5145021c1f7f8df95551ea91..0000000000000000000000000000000000000000
--- a/conversations/conv_037761.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_037777.json b/conversations/conv_037777.json
deleted file mode 100644
index 4188c0518d51f91e315fcdb17282b4036de15749..0000000000000000000000000000000000000000
--- a/conversations/conv_037777.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2401",
-      "position_frames": 0
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-      "real_speaker_id": "446",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-369.flac |",
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-      "speaker_id": 1,
-      "start_time": 22.921336576789287,
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-  "foreground_events": [
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-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_037782.json b/conversations/conv_037782.json
deleted file mode 100644
index cb4d0ee42fd9d35c24d79084a02101d248b0f342..0000000000000000000000000000000000000000
--- a/conversations/conv_037782.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "3793",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152139.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_037794.json b/conversations/conv_037794.json
deleted file mode 100644
index 72facfed7ce7275a8ac971e3c568027f64084a8b..0000000000000000000000000000000000000000
--- a/conversations/conv_037794.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-172165.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_037798.json b/conversations/conv_037798.json
deleted file mode 100644
index c0d83857c03dac6e25895726280d7aa6d979e344..0000000000000000000000000000000000000000
--- a/conversations/conv_037798.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
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-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11528.flac |",
-      "real_speaker_id": "4110",
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-      "real_speaker_id": "4010",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11535.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037805.json b/conversations/conv_037805.json
deleted file mode 100644
index 56d2b7de3b93e9d66197e69f8d7ef72fc98ed5fa..0000000000000000000000000000000000000000
--- a/conversations/conv_037805.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.550355624183986,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174960.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 0
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-      "utterance_id": "8470-279797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174960.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 76354
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 75685
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_037809.json b/conversations/conv_037809.json
deleted file mode 100644
index 3a4212629918f04535effb5a0a0fe677cff7cd56..0000000000000000000000000000000000000000
--- a/conversations/conv_037809.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136271.flac |",
-      "real_speaker_id": "1668",
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-      "real_speaker_id": "8419",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "7754-108640",
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-      "real_speaker_id": "7754",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1668-136280.flac |",
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-      "position_frames": 0
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-      "event_class": "Frying",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037812.json b/conversations/conv_037812.json
deleted file mode 100644
index 08db327e06457ec063d75e3c8f0588c8f0b2bf24..0000000000000000000000000000000000000000
--- a/conversations/conv_037812.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.165804985649909,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-283569.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8337-284519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-284519.flac |",
-      "real_speaker_id": "8337",
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-      "segment_id": "seg0004",
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-    {
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-      "overlap": true,
-      "utterance_id": "8337-284523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-284523.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.47260544650622,
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-      "position_frames": 58878
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/625/cough/0082.wav",
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-      "start_time": 31.274076027787462,
-      "speaker_id": "625"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037813.json b/conversations/conv_037813.json
deleted file mode 100644
index 3f487045c57792a2d693f8b9f863461aec6d4b7c..0000000000000000000000000000000000000000
--- a/conversations/conv_037813.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_037825.json b/conversations/conv_037825.json
deleted file mode 100644
index 7b9adcb750014b9955996ec6286c97fa4d5bd521..0000000000000000000000000000000000000000
--- a/conversations/conv_037825.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.519951336895165,
-  "num_speakers": 3,
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-      "utterance_id": "5983-39669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39669.flac |",
-      "real_speaker_id": "5983",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
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\ No newline at end of file
diff --git a/conversations/conv_037829.json b/conversations/conv_037829.json
deleted file mode 100644
index d2e3c6a1ae18b6f6589c8a9158bb19a8ee9d739d..0000000000000000000000000000000000000000
--- a/conversations/conv_037829.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "2196",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_037833.json b/conversations/conv_037833.json
deleted file mode 100644
index d1b4fdd26051040a3201ccb692cc3178a802c02e..0000000000000000000000000000000000000000
--- a/conversations/conv_037833.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-      "start_time": 31.306019133267718,
-      "speaker_id": "149"
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\ No newline at end of file
diff --git a/conversations/conv_037838.json b/conversations/conv_037838.json
deleted file mode 100644
index a59f1e98ef74489e6f348512c87621357dfb7227..0000000000000000000000000000000000000000
--- a/conversations/conv_037838.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25950.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164328.flac |",
-      "real_speaker_id": "3008",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.671160073047616,
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-      "utterance_id": "3008-164327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3008-164327.flac |",
-      "real_speaker_id": "3008",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
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-      "position_frames": 105697
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037844.json b/conversations/conv_037844.json
deleted file mode 100644
index 468045a0f40df47cf5ca039df0eef5c3a52a40d0..0000000000000000000000000000000000000000
--- a/conversations/conv_037844.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
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-      "utterance_id": "1384-130460",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130460.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 135542
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1384-130462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130462.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "background_events": [],
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-}
\ No newline at end of file
diff --git a/conversations/conv_037845.json b/conversations/conv_037845.json
deleted file mode 100644
index cd9ecc8f90c9be0e3835e4174c3c8d42be2278f6..0000000000000000000000000000000000000000
--- a/conversations/conv_037845.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5152-81825.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_037848.json b/conversations/conv_037848.json
deleted file mode 100644
index 004d647e17752034bd5eafe27cd9af90ca7b2d5a..0000000000000000000000000000000000000000
--- a/conversations/conv_037848.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.56411211569954,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-53038.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-122798.flac |",
-      "real_speaker_id": "215",
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-      "duration": 1.1,
-      "start_time": 21.36610908189853,
-      "speaker_id": "6127"
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-      "event_class": "laugh",
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-      "speaker_id": "215"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037852.json b/conversations/conv_037852.json
deleted file mode 100644
index f711a7df7aa59e974b7c2e752d47cdcc0054c28f..0000000000000000000000000000000000000000
--- a/conversations/conv_037852.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "2182-150130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72200.flac |",
-      "real_speaker_id": "7285",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-127705.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.674459586518736,
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-      "overlap": false,
-      "utterance_id": "7285-72207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72207.flac |",
-      "real_speaker_id": "7285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.868207762498475,
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-      "utterance_id": "254-27760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-27760.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181173.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037864.json b/conversations/conv_037864.json
deleted file mode 100644
index 5de32028df78f59b55e8b466d0ac0c3e3cb1a8f3..0000000000000000000000000000000000000000
--- a/conversations/conv_037864.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
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-      "real_speaker_id": "8591",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 155443
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "8591-284445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284445.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_037868.json b/conversations/conv_037868.json
deleted file mode 100644
index d95e60cdd606e158d3d573ad59d8311aec6f78cc..0000000000000000000000000000000000000000
--- a/conversations/conv_037868.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14672.flac |",
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-      "utterance_id": "7683-103530",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3615-14672.flac |",
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-      "position_frames": 85553
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_037869.json b/conversations/conv_037869.json
deleted file mode 100644
index 29ea339e621692a4f9aa02c7b959f4a7f3c4ad78..0000000000000000000000000000000000000000
--- a/conversations/conv_037869.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-271808.flac |",
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-      "real_speaker_id": "5906",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7125-87278.flac |",
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-      "duration": 1.18,
-      "start_time": 0,
-      "speaker_id": "7826"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7826/laugh/0108.wav",
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-      "speaker_id": "5906"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037872.json b/conversations/conv_037872.json
deleted file mode 100644
index beeeb16cfc4f22453db39ce6002976024939f7c3..0000000000000000000000000000000000000000
--- a/conversations/conv_037872.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132851.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
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-    {
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-      "utterance_id": "1116-132851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132851.flac |",
-      "real_speaker_id": "1116",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132847.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-283384.flac |",
-      "real_speaker_id": "7942",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76701.flac |",
-      "real_speaker_id": "6777",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_037879.json b/conversations/conv_037879.json
deleted file mode 100644
index 8bd6e06785182e2028fddec470a90d7b7be97407..0000000000000000000000000000000000000000
--- a/conversations/conv_037879.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.943547469449094,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
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-      "segment_id": "seg0003",
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-      "utterance_id": "4278-13269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-13269.flac |",
-      "real_speaker_id": "4278",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "6221",
-      "position_frames": 146377
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-    {
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_037880.json b/conversations/conv_037880.json
deleted file mode 100644
index 75677cf359155a0678c1c157704b01e1e06ea129..0000000000000000000000000000000000000000
--- a/conversations/conv_037880.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152257.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "6685",
-      "position_frames": 73663
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_037886.json b/conversations/conv_037886.json
deleted file mode 100644
index 6478d4076705f00fe55070e8ed42c421b9dba9fa..0000000000000000000000000000000000000000
--- a/conversations/conv_037886.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.491004278589884,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139741.flac |",
-      "real_speaker_id": "1974",
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-    },
-    {
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-      "utterance_id": "2319-138631",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139742.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.980176525746177,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7387-97901.flac |",
-      "real_speaker_id": "7387",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "speaker_id": "7387"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037887.json b/conversations/conv_037887.json
deleted file mode 100644
index cd100884e4df5a870fcc8f5aa2cff6eee41abdfd..0000000000000000000000000000000000000000
--- a/conversations/conv_037887.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "start_time": 0.0,
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-      "utterance_id": "101-126859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126859.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.041143519615283,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.713666608577043,
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-      "overlap": true,
-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 91684
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.32279906770759,
-      "end_time": 30.73146940284797,
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-      "overlap": false,
-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 87783
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.293508866507377,
-      "end_time": 32.0,
-      "duration": 0.7064911334926229,
-      "start_frame": 500696,
-      "duration_frames": 11303,
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-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 192007
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.1,
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-      "speaker_id": "8401"
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-}
\ No newline at end of file
diff --git a/conversations/conv_037891.json b/conversations/conv_037891.json
deleted file mode 100644
index 5c313f82128b795cf941f2e4652b3d725fce97a6..0000000000000000000000000000000000000000
--- a/conversations/conv_037891.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "7437-96157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96157.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
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-    {
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-      "start_time": 4.190051848189867,
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-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.756108084625819,
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-      "utterance_id": "7073-114963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
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-      "utterance_id": "7437-117899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-117899.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.14426071756567,
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-      "overlap": false,
-      "utterance_id": "7073-83692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-83692.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.38244522233777,
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-      "overlap": false,
-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 60779
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.933251912001836,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 122410
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "7437"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 5.222228798249738,
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7073/cough/0123.wav",
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-      "start_time": 13.185353515613851,
-      "speaker_id": "7073"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8573/cough/0110.wav",
-      "duration": 0.5186061048523605,
-      "start_time": 31.48139389514764,
-      "speaker_id": "8573"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037896.json b/conversations/conv_037896.json
deleted file mode 100644
index 24706ea032e6cbd4a9f154879b767f565ebd01e6..0000000000000000000000000000000000000000
--- a/conversations/conv_037896.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.7983859396366,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "3650-168646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168646.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.208806392692883,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180299.flac |",
-      "real_speaker_id": "374",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5319-64075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-64075.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.845135806098071,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168646.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 71015
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-    {
-      "segment_id": "seg0004",
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-      "overlap": false,
-      "utterance_id": "5319-84357",
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-      "real_speaker_id": "5319",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 84917,
-      "overlap": true,
-      "utterance_id": "3650-168637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168637.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3650/laugh/0103.wav",
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-    },
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3650/cough/0090.wav",
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-      "start_time": 0,
-      "speaker_id": "3650"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/374/laugh/0092.wav",
-      "duration": 1.36,
-      "start_time": 3.603990819140164,
-      "speaker_id": "374"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/374/cough/0097.wav",
-      "duration": 1.0,
-      "start_time": 4.034199108444982,
-      "speaker_id": "374"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5319/laugh/0053.wav",
-      "duration": 0.8421432409872054,
-      "start_time": 8.507201922753952,
-      "speaker_id": "5319"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3650/cough/0028.wav",
-      "duration": 0.6609025102968586,
-      "start_time": 31.339097489703143,
-      "speaker_id": "3650"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037900.json b/conversations/conv_037900.json
deleted file mode 100644
index bd38b902f2420c7aac045de257bb1d0caa46a815..0000000000000000000000000000000000000000
--- a/conversations/conv_037900.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.638510054230068,
-      "duration": 4.638510054230068,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_037901.json b/conversations/conv_037901.json
deleted file mode 100644
index 5a883229ff8a03235d4032182ee423ec83c0bb31..0000000000000000000000000000000000000000
--- a/conversations/conv_037901.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3483-119637.flac |",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_037917.json b/conversations/conv_037917.json
deleted file mode 100644
index bd2e67986d940d9e2bb2116b249a28424ea1c32c..0000000000000000000000000000000000000000
--- a/conversations/conv_037917.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_037921.json b/conversations/conv_037921.json
deleted file mode 100644
index ea97b5c3e61de08517f5cb09adb89ab7754905a1..0000000000000000000000000000000000000000
--- a/conversations/conv_037921.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/laugh/0060.wav",
-      "duration": 1.28,
-      "start_time": 10.547473232564823,
-      "speaker_id": "7263"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/cough/0069.wav",
-      "duration": 0.7729881982155626,
-      "start_time": 16.568107070401382,
-      "speaker_id": "7263"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037937.json b/conversations/conv_037937.json
deleted file mode 100644
index 7ea39c86185653d6f21685bceaa92d9b5d6a8681..0000000000000000000000000000000000000000
--- a/conversations/conv_037937.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.658992587822671,
-      "duration": 5.658992587822671,
-      "start_frame": 0,
-      "duration_frames": 90543,
-      "overlap": false,
-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.604767250255772,
-      "end_time": 13.974800095377727,
-      "duration": 6.370032845121955,
-      "start_frame": 121676,
-      "duration_frames": 101920,
-      "overlap": false,
-      "utterance_id": "7556-93308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-93308.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.720501568125336,
-      "end_time": 21.39316717260934,
-      "duration": 6.6726656044840045,
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-      "duration_frames": 106762,
-      "overlap": false,
-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 90543
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.48575445601834,
-      "end_time": 26.727538580902966,
-      "duration": 5.241784124884624,
-      "start_frame": 343772,
-      "duration_frames": 83868,
-      "overlap": true,
-      "utterance_id": "7556-103536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-103536.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 28.091117804105664,
-      "end_time": 32.0,
-      "duration": 3.9088821958943356,
-      "start_frame": 449457,
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-      "overlap": false,
-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 197305
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-      "start_time": 7.758064381316998
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
-      "duration": 0.47965986394557825,
-      "start_time": 5.879779762189555
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7448/cough/0054.wav",
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-      "speaker_id": "7448"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7556/cough/0101.wav",
-      "duration": 1.2,
-      "start_time": 6.295733192896819,
-      "speaker_id": "7556"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037940.json b/conversations/conv_037940.json
deleted file mode 100644
index c20a73b8d88ca3ba00e9f5703ffb1f90820c4c2e..0000000000000000000000000000000000000000
--- a/conversations/conv_037940.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.720943223369034,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.372729398717312,
-      "duration": 5.372729398717312,
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-      "overlap": false,
-      "utterance_id": "8014-280382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-280382.flac |",
-      "real_speaker_id": "8014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.715694408631598,
-      "end_time": 11.590593369852066,
-      "duration": 5.874898961220467,
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-      "utterance_id": "6777-76694",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76694.flac |",
-      "real_speaker_id": "6777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.307886714429996,
-      "end_time": 17.320944176042946,
-      "duration": 5.01305746161295,
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-      "overlap": false,
-      "utterance_id": "8014-280382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-280382.flac |",
-      "real_speaker_id": "8014",
-      "position_frames": 85963
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.087650735863324,
-      "end_time": 23.878159600806665,
-      "duration": 6.79050886494334,
-      "start_frame": 273402,
-      "duration_frames": 108648,
-      "overlap": true,
-      "utterance_id": "6777-76694",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76694.flac |",
-      "real_speaker_id": "6777",
-      "position_frames": 93998
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.663319176336362,
-      "end_time": 30.720943223369034,
-      "duration": 6.057624047032671,
-      "start_frame": 394613,
-      "duration_frames": 96921,
-      "overlap": true,
-      "utterance_id": "8014-112602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-112602.flac |",
-      "real_speaker_id": "8014",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_2.wav",
-      "duration": 0.3626530612244898,
-      "start_time": 11.290798181160584
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8014/laugh/0012.wav",
-      "duration": 1.32,
-      "start_time": 0.6818049799044592,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8014/cough/0071.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6777/laugh/0037.wav",
-      "duration": 1.44,
-      "start_time": 20.206090828323262,
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-    {
-      "event_class": "cough",
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-      "start_time": 23.446636407503735,
-      "speaker_id": "8014"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037956.json b/conversations/conv_037956.json
deleted file mode 100644
index 1b6fd1d36ef32876118661e80aa8b06e13acd14f..0000000000000000000000000000000000000000
--- a/conversations/conv_037956.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5400-34479",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-34479.flac |",
-      "real_speaker_id": "5400",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.409240163208911,
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-      "overlap": false,
-      "utterance_id": "5831-98684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-98684.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.170206366727706,
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-      "start_frame": 210723,
-      "duration_frames": 85386,
-      "overlap": false,
-      "utterance_id": "1974-139742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139742.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.309853367454966,
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-      "duration_frames": 61267,
-      "overlap": true,
-      "utterance_id": "5831-98689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-98689.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.130559904891257,
-      "end_time": 28.669167434458636,
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-      "duration_frames": 88617,
-      "overlap": false,
-      "utterance_id": "5400-3587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-3587.flac |",
-      "real_speaker_id": "5400",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.325078948055587,
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-      "duration": 1.6749210519444127,
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-      "overlap": false,
-      "utterance_id": "1974-139742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139742.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 85386
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1974/laugh/0126.wav",
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-      "start_time": 11.887773417520481,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1974/laugh/0030.wav",
-      "duration": 1.28,
-      "start_time": 28.842212230823947,
-      "speaker_id": "1974"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037957.json b/conversations/conv_037957.json
deleted file mode 100644
index d4fd2c33d6b37d1e44bb1d33bd73e7e06e86b403..0000000000000000000000000000000000000000
--- a/conversations/conv_037957.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.4451436252705525,
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-      "overlap": true,
-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 92632
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.641261979309007,
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-      "duration_frames": 85079,
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-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "713-291178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-291178.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
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-      "position_frames": 183769
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/713/laugh/0036.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037960.json b/conversations/conv_037960.json
deleted file mode 100644
index a4e9ae0df7f7258b3148c367d84a6e8e127831c0..0000000000000000000000000000000000000000
--- a/conversations/conv_037960.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_037976.json b/conversations/conv_037976.json
deleted file mode 100644
index eef6f860c88f56575409ad4e705a2e9a260b916f..0000000000000000000000000000000000000000
--- a/conversations/conv_037976.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.637336079594615,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4017-6540.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_037983.json b/conversations/conv_037983.json
deleted file mode 100644
index d85f520c1fe2bf88364c80e46038c46ceed2b8eb..0000000000000000000000000000000000000000
--- a/conversations/conv_037983.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.636085992046343,
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-      "position_frames": 101295
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294697.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 86802
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_037984.json b/conversations/conv_037984.json
deleted file mode 100644
index 6bd81a8dbb7dae9c96bc073122200c1b2300d913..0000000000000000000000000000000000000000
--- a/conversations/conv_037984.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.328372406115694,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8075-279239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279239.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279239.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_037992.json b/conversations/conv_037992.json
deleted file mode 100644
index 5dab325b1bbaa761c62275fe53be4c7b842c3dec..0000000000000000000000000000000000000000
--- a/conversations/conv_037992.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.247917457514744,
-      "duration": 5.247917457514744,
-      "start_frame": 0,
-      "duration_frames": 83966,
-      "overlap": false,
-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.008058129815868,
-      "end_time": 11.465474297602725,
-      "duration": 5.457416167786858,
-      "start_frame": 96128,
-      "duration_frames": 87318,
-      "overlap": false,
-      "utterance_id": "6138-93188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.438810399132006,
-      "end_time": 18.048903569276753,
-      "duration": 5.610093170144746,
-      "start_frame": 199020,
-      "duration_frames": 89761,
-      "overlap": false,
-      "utterance_id": "2512-157480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2512-157480.flac |",
-      "real_speaker_id": "2512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.458221051444728,
-      "end_time": 23.578934532697033,
-      "duration": 5.120713481252307,
-      "start_frame": 295331,
-      "duration_frames": 81931,
-      "overlap": false,
-      "utterance_id": "6138-93182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93182.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.826347493192763,
-      "end_time": 28.343991740463263,
-      "duration": 5.517644247270501,
-      "start_frame": 365221,
-      "duration_frames": 88282,
-      "overlap": true,
-      "utterance_id": "45-121050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 83966
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.166247937472086,
-      "end_time": 32.0,
-      "duration": 1.833752062527914,
-      "start_frame": 482659,
-      "duration_frames": 29340,
-      "overlap": false,
-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_2.wav",
-      "duration": 0.3626530612244898,
-      "start_time": 28.03763447308726
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_0.wav",
-      "duration": 1.116031746031746,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6138/laugh/0115.wav",
-      "duration": 0.7123313137280083,
-      "start_time": 10.065566262895924,
-      "speaker_id": "6138"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2512/laugh/0111.wav",
-      "duration": 0.7903093640930852,
-      "start_time": 16.219802926191072,
-      "speaker_id": "2512"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6138/laugh/0117.wav",
-      "duration": 0.7041732955058084,
-      "start_time": 22.02336976799419,
-      "speaker_id": "6138"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/45/cough/0000.wav",
-      "duration": 0.6146826430146519,
-      "start_time": 22.158553348032186,
-      "speaker_id": "45"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6138/laugh/0078.wav",
-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "6138"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037995.json b/conversations/conv_037995.json
deleted file mode 100644
index b768099dae1798f71641eb0655eeedb004fbb9d2..0000000000000000000000000000000000000000
--- a/conversations/conv_037995.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.418792293700015,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 3.594920497835838,
-      "start_frame": 0,
-      "duration_frames": 57518,
-      "overlap": false,
-      "utterance_id": "1456-130553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130553.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.605373457740734,
-      "end_time": 10.065236060177382,
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-      "overlap": false,
-      "utterance_id": "6311-63718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6311-63718.flac |",
-      "real_speaker_id": "6311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.23503219392123,
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-      "overlap": false,
-      "utterance_id": "1456-130553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130553.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 57518
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.346390022010493,
-      "end_time": 20.165585806010913,
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-      "overlap": true,
-      "utterance_id": "6311-63718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6311-63718.flac |",
-      "real_speaker_id": "6311",
-      "position_frames": 87357
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.80067879682109,
-      "end_time": 27.78406748648995,
-      "duration": 5.98338868966886,
-      "start_frame": 348810,
-      "duration_frames": 95734,
-      "overlap": false,
-      "utterance_id": "1456-130553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130553.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 146837
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.415124891293694,
-      "end_time": 31.418792293700015,
-      "duration": 3.0036674024063204,
-      "start_frame": 454641,
-      "duration_frames": 48058,
-      "overlap": false,
-      "utterance_id": "1456-130545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130545.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "start_time": 4.574443366773289
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_17.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 9.63669765349205,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1456/laugh/0025.wav",
-      "duration": 1.0371795923035974,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1456/laugh/0069.wav",
-      "duration": 1.0503832843146192,
-      "start_time": 30.94961671568538,
-      "speaker_id": "1456"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_037999.json b/conversations/conv_037999.json
deleted file mode 100644
index 58b423d03dbd0fe794bf17d94207733629533ec8..0000000000000000000000000000000000000000
--- a/conversations/conv_037999.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.7959684811445,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-103629.flac |",
-      "real_speaker_id": "6660",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/209-4731.flac |",
-      "real_speaker_id": "209",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "6660-97655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-97655.flac |",
-      "real_speaker_id": "6660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.678581764676572,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/209-4731.flac |",
-      "real_speaker_id": "209",
-      "position_frames": 90258
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.558154794961645,
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-      "duration": 4.441845205038355,
-      "start_frame": 440930,
-      "duration_frames": 71069,
-      "overlap": false,
-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
-      "real_speaker_id": "2411",
-      "position_frames": 73863
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_8.wav",
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-      "start_time": 6.050954530805815
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/209/cough/0075.wav",
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-      "start_time": 25.32570435002238,
-      "speaker_id": "209"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038007.json b/conversations/conv_038007.json
deleted file mode 100644
index 1e4581d44236867e3187dfb2616543d42309d992..0000000000000000000000000000000000000000
--- a/conversations/conv_038007.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.647115267181743,
-      "duration": 6.647115267181743,
-      "start_frame": 0,
-      "duration_frames": 106353,
-      "overlap": false,
-      "utterance_id": "2104-78253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78253.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.803641841301302,
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-      "utterance_id": "542-125349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125349.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "start_frame": 239942,
-      "duration_frames": 86187,
-      "overlap": false,
-      "utterance_id": "492-131890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/492-131890.flac |",
-      "real_speaker_id": "492",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "492-131882",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/542/cough/0061.wav",
-      "duration": 0.46061186756723094,
-      "start_time": 13.337884403171683,
-      "speaker_id": "542"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038011.json b/conversations/conv_038011.json
deleted file mode 100644
index e70d03b161db5bd7a50c92b29ab9e0f758ff9c76..0000000000000000000000000000000000000000
--- a/conversations/conv_038011.json
+++ /dev/null
@@ -1,88 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.505689184121786,
-      "duration": 4.505689184121786,
-      "start_frame": 0,
-      "duration_frames": 72091,
-      "overlap": false,
-      "utterance_id": "6227-36632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-36632.flac |",
-      "real_speaker_id": "6227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.984945636532541,
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-      "duration": 6.112660700870071,
-      "start_frame": 79759,
-      "duration_frames": 97802,
-      "overlap": false,
-      "utterance_id": "7717-104491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7717-104491.flac |",
-      "real_speaker_id": "7717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.07961722236499,
-      "end_time": 16.424775073783,
-      "duration": 5.345157851418011,
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-      "duration_frames": 85522,
-      "overlap": true,
-      "utterance_id": "6227-36632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-36632.flac |",
-      "real_speaker_id": "6227",
-      "position_frames": 72091
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.25492218835698,
-      "end_time": 25.105525455266527,
-      "duration": 6.850603266909549,
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-      "duration_frames": 109609,
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-      "utterance_id": "111-126265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126265.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.160982684524615,
-      "end_time": 32.0,
-      "duration": 5.839017315475385,
-      "start_frame": 418575,
-      "duration_frames": 93424,
-      "overlap": false,
-      "utterance_id": "7717-104491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7717-104491.flac |",
-      "real_speaker_id": "7717",
-      "position_frames": 97802
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
-      "duration": 2.6844897959183673,
-      "start_time": 13.147766463509383
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_038027.json b/conversations/conv_038027.json
deleted file mode 100644
index 06cebae55a6617f34e09ae47d1b6fc410653d235..0000000000000000000000000000000000000000
--- a/conversations/conv_038027.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 5.541774566472393,
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-      "overlap": false,
-      "utterance_id": "4427-12471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-12471.flac |",
-      "real_speaker_id": "4427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.445659017564506,
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-      "utterance_id": "792-127528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/792-127528.flac |",
-      "real_speaker_id": "792",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "3885-12149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-12149.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.130705278200733,
-      "end_time": 27.156983015263485,
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-      "overlap": false,
-      "utterance_id": "792-127527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/792-127527.flac |",
-      "real_speaker_id": "792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 28.213067206289697,
-      "end_time": 32.0,
-      "duration": 3.786932793710303,
-      "start_frame": 451409,
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-      "overlap": false,
-      "utterance_id": "3885-183973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-183973.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/792/cough/0026.wav",
-      "duration": 1.4102606716177921,
-      "start_time": 13.165091788693998,
-      "speaker_id": "792"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3885/cough/0065.wav",
-      "duration": 0.9996587768665823,
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-      "speaker_id": "3885"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/792/cough/0098.wav",
-      "duration": 0.94,
-      "start_time": 27.20764919826183,
-      "speaker_id": "792"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3885/cough/0040.wav",
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-      "speaker_id": "3885"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038031.json b/conversations/conv_038031.json
deleted file mode 100644
index e98013f1352d5137e2254b40441261eb3ed908bf..0000000000000000000000000000000000000000
--- a/conversations/conv_038031.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.33689333627852,
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-      "overlap": false,
-      "utterance_id": "459-127521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-127521.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.677032114554643,
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-      "utterance_id": "157-126796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/157-126796.flac |",
-      "real_speaker_id": "157",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "459-127521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-127521.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 101390
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.273830023864177,
-      "end_time": 20.9154303282979,
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-      "overlap": false,
-      "utterance_id": "4010-10822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10822.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.02444473340719,
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-      "utterance_id": "459-123443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-123443.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.341441928049363,
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-      "duration": 3.6585580719506368,
-      "start_frame": 453463,
-      "duration_frames": 58536,
-      "overlap": false,
-      "utterance_id": "4010-10822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10822.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 90265
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/459/cough/0015.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "459"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/459/cough/0039.wav",
-      "duration": 0.49914204272044893,
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-      "speaker_id": "459"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038046.json b/conversations/conv_038046.json
deleted file mode 100644
index ad301bc1fc07816477a633c6883cc65d69e7120c..0000000000000000000000000000000000000000
--- a/conversations/conv_038046.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "6636-74113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6636-74113.flac |",
-      "real_speaker_id": "6636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "23-124439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
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-    {
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-      "utterance_id": "460-172359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172359.flac |",
-      "real_speaker_id": "460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.475537497025684,
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-      "duration_frames": 90068,
-      "overlap": false,
-      "utterance_id": "6636-72296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6636-72296.flac |",
-      "real_speaker_id": "6636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "23-124439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
-      "position_frames": 78901
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.255382488311007,
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-      "utterance_id": "460-172357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172357.flac |",
-      "real_speaker_id": "460",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_038050.json b/conversations/conv_038050.json
deleted file mode 100644
index b4bacf2c6d95a89c6597d1bf275a9a12f2b18429..0000000000000000000000000000000000000000
--- a/conversations/conv_038050.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.63980919306993,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "534-127537",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127537.flac |",
-      "real_speaker_id": "534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68897.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5570-73846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73846.flac |",
-      "real_speaker_id": "5570",
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-    {
-      "segment_id": "seg0003",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_038066.json b/conversations/conv_038066.json
deleted file mode 100644
index adfb763c4c77fcdfe6d944fde1bb338a0098fb45..0000000000000000000000000000000000000000
--- a/conversations/conv_038066.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
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-      "start_time": 4.520017242242682,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-24606.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.097845888106942,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_038067.json b/conversations/conv_038067.json
deleted file mode 100644
index 130532ef00eeeca1b795facd5ef6a9d9a448217c..0000000000000000000000000000000000000000
--- a/conversations/conv_038067.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_038070.json b/conversations/conv_038070.json
deleted file mode 100644
index db3dd854d0cfe03579af0aefab5f7f87ad6e72cf..0000000000000000000000000000000000000000
--- a/conversations/conv_038070.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_038077.json b/conversations/conv_038077.json
deleted file mode 100644
index 48052e112f6aa01d21a00b430da52cdbb1ad2bdb..0000000000000000000000000000000000000000
--- a/conversations/conv_038077.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-92820.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_038085.json b/conversations/conv_038085.json
deleted file mode 100644
index d7e4fcb2a15a5dc5c566504a0223ae96903b6d51..0000000000000000000000000000000000000000
--- a/conversations/conv_038085.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157947.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_038088.json b/conversations/conv_038088.json
deleted file mode 100644
index fde600acf3fd77974d32e21467f4e228e2f30d22..0000000000000000000000000000000000000000
--- a/conversations/conv_038088.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1649",
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-      "position_frames": 110932
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5700-44605",
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\ No newline at end of file
diff --git a/conversations/conv_038089.json b/conversations/conv_038089.json
deleted file mode 100644
index fa5c6bb3a87c8644820f9050c34181f2618bc247..0000000000000000000000000000000000000000
--- a/conversations/conv_038089.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_038093.json b/conversations/conv_038093.json
deleted file mode 100644
index d2a0c990ea07f55a9edadb666e161331ec35834f..0000000000000000000000000000000000000000
--- a/conversations/conv_038093.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.29675305473812,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-292560.flac |",
-      "real_speaker_id": "8664",
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-      "utterance_id": "8664-175359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-175359.flac |",
-      "real_speaker_id": "8664",
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-      "speaker_id": 0,
-      "start_time": 17.65300327379441,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 84163
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "128-134883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_038098.json b/conversations/conv_038098.json
deleted file mode 100644
index a02159a8b89faf5b0640cb4073b7c399265aa377..0000000000000000000000000000000000000000
--- a/conversations/conv_038098.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
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-      "segment_id": "seg0004",
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-      "utterance_id": "4964-30587",
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\ No newline at end of file
diff --git a/conversations/conv_038103.json b/conversations/conv_038103.json
deleted file mode 100644
index 7d5a0bcbe7108d4935068f793aa6f3c9c898e6a3..0000000000000000000000000000000000000000
--- a/conversations/conv_038103.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_038108.json b/conversations/conv_038108.json
deleted file mode 100644
index 71ee40922e9351a4af9f8e81c601b5ff4bea5b9c..0000000000000000000000000000000000000000
--- a/conversations/conv_038108.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3187-168500",
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-      "speaker_id": "7764"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038115.json b/conversations/conv_038115.json
deleted file mode 100644
index cd2d9225f73da8b2697e65e87b46705404789caa..0000000000000000000000000000000000000000
--- a/conversations/conv_038115.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-156170.flac |",
-      "real_speaker_id": "1085",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "6037-59234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6037-59234.flac |",
-      "real_speaker_id": "6037",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.406538139727694,
-      "end_time": 30.0234804743365,
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-      "utterance_id": "4310-14908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.62021056498239,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1085-35680.flac |",
-      "real_speaker_id": "1085",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_038119.json b/conversations/conv_038119.json
deleted file mode 100644
index 9a29cb47987f6794a1d132ea4087b7e10bd11381..0000000000000000000000000000000000000000
--- a/conversations/conv_038119.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4018-103416.flac |",
-      "real_speaker_id": "4018",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2110-161100.flac |",
-      "real_speaker_id": "2110",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-124526.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 70627
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.39092958772646,
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-      "duration": 4.609070412273539,
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-      "utterance_id": "2110-161101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2110-161101.flac |",
-      "real_speaker_id": "2110",
-      "position_frames": 99080
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "2110"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038122.json b/conversations/conv_038122.json
deleted file mode 100644
index 55fb6b87db14b33769583cee83971a1cf5f3f4ea..0000000000000000000000000000000000000000
--- a/conversations/conv_038122.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121970.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038123.json b/conversations/conv_038123.json
deleted file mode 100644
index 2ec4641d1ecb08bad82b71fa5a5c5cbff05cc025..0000000000000000000000000000000000000000
--- a/conversations/conv_038123.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "start_time": 13.166796433184468
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.7525210087450187,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4152/laugh/0094.wav",
-      "duration": 1.24,
-      "start_time": 12.443677856358443,
-      "speaker_id": "4152"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2943/cough/0028.wav",
-      "duration": 1.28,
-      "start_time": 27.364605798489944,
-      "speaker_id": "2943"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038132.json b/conversations/conv_038132.json
deleted file mode 100644
index c81ffbc7c5788eee97e3872d0995f7e934c57af4..0000000000000000000000000000000000000000
--- a/conversations/conv_038132.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.539277357060275,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.935396365588253,
-      "duration": 3.935396365588253,
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-      "duration_frames": 62966,
-      "overlap": false,
-      "utterance_id": "6568-69911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-69911.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.562565331963157,
-      "end_time": 10.21519409190065,
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-      "utterance_id": "1737-146161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-146161.flac |",
-      "real_speaker_id": "1737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.429964507708846,
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-      "duration": 4.0793832420297855,
-      "start_frame": 166879,
-      "duration_frames": 65270,
-      "overlap": false,
-      "utterance_id": "7517-100429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100429.flac |",
-      "real_speaker_id": "7517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.320322577081434,
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-      "duration": 5.54638072539067,
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-      "duration_frames": 88742,
-      "overlap": true,
-      "utterance_id": "1737-142396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-142396.flac |",
-      "real_speaker_id": "1737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.50575838618687,
-      "end_time": 24.849866968597347,
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-      "utterance_id": "6568-69911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-69911.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 62966
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.271523773774,
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-      "utterance_id": "7517-100429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100429.flac |",
-      "real_speaker_id": "7517",
-      "position_frames": 65270
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.73709815169282,
-      "end_time": 31.539277357060275,
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-      "utterance_id": "6568-79375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-79375.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "speaker_id": "6568"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038135.json b/conversations/conv_038135.json
deleted file mode 100644
index f907cf08b7043cca36f387ad53b0e77184c03463..0000000000000000000000000000000000000000
--- a/conversations/conv_038135.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.363706150402292,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-282391.flac |",
-      "real_speaker_id": "6167",
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 80244
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.55198894524809,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-282391.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 78148
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2013-147610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147610.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.543634133514217,
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-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 164143
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/laugh/0146.wav",
-      "duration": 0.7370049989111493,
-      "start_time": 31.26299500108885,
-      "speaker_id": "2013"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038139.json b/conversations/conv_038139.json
deleted file mode 100644
index 98d9f7042ccccd4ae6f5bb860c031ab167dab96c..0000000000000000000000000000000000000000
--- a/conversations/conv_038139.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1365-134804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134804.flac |",
-      "real_speaker_id": "1365",
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-    {
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-      "start_time": 5.484243050453801,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-155991.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1365-134830",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.524314514945694,
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-      "utterance_id": "3045-155991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-155991.flac |",
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-      "position_frames": 70513
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134830.flac |",
-      "real_speaker_id": "1365",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7756-287863",
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-      "real_speaker_id": "7756",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_038142.json b/conversations/conv_038142.json
deleted file mode 100644
index 00661cee8f378821dcb73067f5a61398f2c6cd22..0000000000000000000000000000000000000000
--- a/conversations/conv_038142.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8753-297969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297969.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
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-    {
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-      "duration": 1.2118378138963475,
-      "start_time": 0,
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-      "event_class": "cough",
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-      "duration": 0.5654919508306553,
-      "start_time": 22.912605780009265,
-      "speaker_id": "2140"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8753/cough/0069.wav",
-      "duration": 1.14,
-      "start_time": 30.86,
-      "speaker_id": "8753"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038149.json b/conversations/conv_038149.json
deleted file mode 100644
index 3fbf84fa0daaae29eab5a409ddf2837d64526029..0000000000000000000000000000000000000000
--- a/conversations/conv_038149.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6339-65554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.15542771764517,
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-      "utterance_id": "4719-25766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "6339-65554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 93234
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.518858468854024,
-      "end_time": 21.465806058399163,
-      "duration": 3.9469475895451405,
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-      "duration_frames": 63151,
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-      "utterance_id": "4719-25765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.733658853294205,
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-      "utterance_id": "6339-65534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.848199760772133,
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-      "utterance_id": "4719-25766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 87950
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6339/cough/0027.wav",
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-      "speaker_id": "6339"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038154.json b/conversations/conv_038154.json
deleted file mode 100644
index 633eee76a321c645a412cb6b224384025e90f887..0000000000000000000000000000000000000000
--- a/conversations/conv_038154.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.167242867283544,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "766-127193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127193.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77907.flac |",
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-      "utterance_id": "4757-1811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77907.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 91198
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 81215
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.641403444857325,
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-      "duration_frames": 56413,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77907.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 185724
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038158.json b/conversations/conv_038158.json
deleted file mode 100644
index 76eef34650f0a38225c4a57130a3dc9e62ec32d3..0000000000000000000000000000000000000000
--- a/conversations/conv_038158.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "9026-282385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9026-282385.flac |",
-      "real_speaker_id": "9026",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
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-      "real_speaker_id": "5620",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5620-40469",
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-      "real_speaker_id": "5620",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_038162.json b/conversations/conv_038162.json
deleted file mode 100644
index c16f208bec540f00a644cffb6e1a3868de109d55..0000000000000000000000000000000000000000
--- a/conversations/conv_038162.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3807-4923",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3703",
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-      "start_time": 27.224988654006232,
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-      "duration": 4.775011345993768,
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-      "utterance_id": "6937-262269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-262269.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 94337
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 3.8228550744507284
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Cat",
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "3807"
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-      "event_class": "cough",
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-      "speaker_id": "3703"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6937/laugh/0013.wav",
-      "duration": 1.08,
-      "start_time": 8.262532351869199,
-      "speaker_id": "6937"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3703/cough/0072.wav",
-      "duration": 0.7823827994113628,
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-      "speaker_id": "3703"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6937/cough/0034.wav",
-      "duration": 0.5993810412375254,
-      "start_time": 20.272551840421375,
-      "speaker_id": "6937"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038174.json b/conversations/conv_038174.json
deleted file mode 100644
index 0e9fb7dc677f8ef051e55ea2502db50372596101..0000000000000000000000000000000000000000
--- a/conversations/conv_038174.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.125192766810674,
-      "duration": 6.125192766810674,
-      "start_frame": 0,
-      "duration_frames": 98003,
-      "overlap": false,
-      "utterance_id": "5386-8684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-8684.flac |",
-      "real_speaker_id": "5386",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.459103343199355,
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-      "overlap": true,
-      "utterance_id": "8742-245708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245708.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "6126-10992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6126-10992.flac |",
-      "real_speaker_id": "6126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.598556404595122,
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-      "overlap": false,
-      "utterance_id": "8742-245707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245707.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.379982556832264,
-      "end_time": 30.03684403743709,
-      "duration": 5.6568614806048245,
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-      "overlap": false,
-      "utterance_id": "5386-28384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-28384.flac |",
-      "real_speaker_id": "5386",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.72858700840388,
-      "end_time": 32.0,
-      "duration": 1.2714129915961188,
-      "start_frame": 491657,
-      "duration_frames": 20342,
-      "overlap": false,
-      "utterance_id": "8742-245707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245707.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 82505
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-      "start_time": 29.824661745488044,
-      "speaker_id": "8742"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038175.json b/conversations/conv_038175.json
deleted file mode 100644
index b46b346063cc8e1a19e42bcd30f06b83b6a652c4..0000000000000000000000000000000000000000
--- a/conversations/conv_038175.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "36-16602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.204686064902565,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 93091
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.349096886059627,
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-      "duration": 6.554223851773095,
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-      "overlap": false,
-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 76385
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.83779741940953,
-      "end_time": 28.09689694576895,
-      "duration": 4.259099526359422,
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-      "duration_frames": 68145,
-      "overlap": false,
-      "utterance_id": "36-16603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.49842228781919,
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-      "duration": 3.5015777121808114,
-      "start_frame": 455974,
-      "duration_frames": 56025,
-      "overlap": false,
-      "utterance_id": "712-123606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/36/laugh/0018.wav",
-      "duration": 0.9334812755300532,
-      "start_time": 0,
-      "speaker_id": "36"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4088/cough/0011.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/712/laugh/0074.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "712"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038178.json b/conversations/conv_038178.json
deleted file mode 100644
index bd21e7cb50be5620b5cf516c3476e030ee32d2cd..0000000000000000000000000000000000000000
--- a/conversations/conv_038178.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.024833478149434,
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-      "start_frame": 0,
-      "duration_frames": 64397,
-      "overlap": false,
-      "utterance_id": "4492-8907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8907.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.603458644300539,
-      "end_time": 10.318381800616086,
-      "duration": 5.714923156315547,
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-      "overlap": false,
-      "utterance_id": "4731-95870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4731-95870.flac |",
-      "real_speaker_id": "4731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "4731-95875",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4731-95875.flac |",
-      "real_speaker_id": "4731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.407368561977766,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8907.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 64397
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 4.662715710828021,
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-      "duration_frames": 74603,
-      "overlap": false,
-      "utterance_id": "4133-6541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
-      "position_frames": 86829
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4731/laugh/0097.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4133/laugh/0048.wav",
-      "duration": 1.24,
-      "start_time": 15.541995943126798,
-      "speaker_id": "4133"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4492/laugh/0142.wav",
-      "duration": 1.1270790440692124,
-      "start_time": 26.317529219194522,
-      "speaker_id": "4492"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4492/cough/0086.wav",
-      "duration": 1.0733545771267041,
-      "start_time": 26.306961890194934,
-      "speaker_id": "4492"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4133/laugh/0071.wav",
-      "duration": 0.7629492368888655,
-      "start_time": 31.237050763111135,
-      "speaker_id": "4133"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038181.json b/conversations/conv_038181.json
deleted file mode 100644
index 437c0923a1603088bf14cddf42b37a9bce5e4639..0000000000000000000000000000000000000000
--- a/conversations/conv_038181.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.893108347353827,
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-      "start_frame": 0,
-      "duration_frames": 94289,
-      "overlap": false,
-      "utterance_id": "2140-39822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-39822.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.114076404501341,
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-      "real_speaker_id": "1473",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163436.flac |",
-      "real_speaker_id": "2930",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.6914475533453,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 70999
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/84654.wav",
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-      "speaker_id": "2930"
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\ No newline at end of file
diff --git a/conversations/conv_038197.json b/conversations/conv_038197.json
deleted file mode 100644
index ffeabca8e6fd284bdb38d04d3cdb6468cabff2df..0000000000000000000000000000000000000000
--- a/conversations/conv_038197.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.3013695561227,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7783",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180298.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7909-106369.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_038206.json b/conversations/conv_038206.json
deleted file mode 100644
index 51abefce48bb9281ae0e9f09fc4f01fcdfc109e3..0000000000000000000000000000000000000000
--- a/conversations/conv_038206.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-65818.flac |",
-      "real_speaker_id": "6610",
-      "position_frames": 177377
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.025004806950875,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_038210.json b/conversations/conv_038210.json
deleted file mode 100644
index cf342bc4aaf7101901f8632c9a4acfa9af995420..0000000000000000000000000000000000000000
--- a/conversations/conv_038210.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7327-93283.flac |",
-      "real_speaker_id": "7327",
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-    {
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038221.json b/conversations/conv_038221.json
deleted file mode 100644
index 20efe9f608095f92a7097538027ea0f0f4b75e30..0000000000000000000000000000000000000000
--- a/conversations/conv_038221.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.02826381286156,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.192032586468243,
-      "duration": 5.192032586468243,
-      "start_frame": 0,
-      "duration_frames": 83072,
-      "overlap": false,
-      "utterance_id": "1736-142281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-142281.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.683458741766204,
-      "end_time": 11.950902324338072,
-      "duration": 6.267443582571868,
-      "start_frame": 90935,
-      "duration_frames": 100279,
-      "overlap": false,
-      "utterance_id": "8396-120281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120281.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.744420957969275,
-      "end_time": 18.37495127144699,
-      "duration": 5.630530313477715,
-      "start_frame": 203910,
-      "duration_frames": 90088,
-      "overlap": false,
-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.708326276651388,
-      "end_time": 23.515294928228716,
-      "duration": 4.8069686515773284,
-      "start_frame": 299333,
-      "duration_frames": 76911,
-      "overlap": false,
-      "utterance_id": "8396-120277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120277.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.017769613398706,
-      "end_time": 29.86213068110225,
-      "duration": 4.844361067703544,
-      "start_frame": 400284,
-      "duration_frames": 77509,
-      "overlap": false,
-      "utterance_id": "4362-15663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 90088
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.43844602603644,
-      "end_time": 31.02826381286156,
-      "duration": 1.5898177868251189,
-      "start_frame": 471015,
-      "duration_frames": 25437,
-      "overlap": true,
-      "utterance_id": "1736-152007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1736-152007.flac |",
-      "real_speaker_id": "1736",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.1763866592867256,
-      "start_time": 11.70875607591707
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8396/laugh/0096.wav",
-      "duration": 1.44,
-      "start_time": 6.304982777276172,
-      "speaker_id": "8396"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8396/cough/0074.wav",
-      "duration": 0.597503518020521,
-      "start_time": 18.064669306909735,
-      "speaker_id": "8396"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4362/laugh/0093.wav",
-      "duration": 1.32,
-      "start_time": 30.001615906187208,
-      "speaker_id": "4362"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1736/cough/0030.wav",
-      "duration": 0.8891253158005583,
-      "start_time": 28.528624714232585,
-      "speaker_id": "1736"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038226.json b/conversations/conv_038226.json
deleted file mode 100644
index 5feaa8db9d1e57390a901a0e688863edddfa9a38..0000000000000000000000000000000000000000
--- a/conversations/conv_038226.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.64608213222811,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.55838374517618,
-      "duration": 5.55838374517618,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.309528762114681,
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-      "overlap": false,
-      "utterance_id": "7881-109662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-109662.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.950067121835042,
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-      "duration": 3.7910273165472725,
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-      "duration_frames": 60656,
-      "overlap": false,
-      "utterance_id": "483-125116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125116.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.413145930097542,
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-      "duration": 4.990963704701753,
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-      "duration_frames": 79855,
-      "overlap": true,
-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.397516567736023,
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-      "duration": 4.269790204763835,
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-      "duration_frames": 68316,
-      "overlap": false,
-      "utterance_id": "7881-110131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-110131.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.840826517499412,
-      "end_time": 31.64608213222811,
-      "duration": 3.805255614728697,
-      "start_frame": 445453,
-      "duration_frames": 60884,
-      "overlap": false,
-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 79855
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7881/laugh/0066.wav",
-      "duration": 0.84,
-      "start_time": 13.189268367176721,
-      "speaker_id": "7881"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5104/laugh/0108.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7881/laugh/0044.wav",
-      "duration": 1.04,
-      "start_time": 27.71094991347813,
-      "speaker_id": "7881"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038230.json b/conversations/conv_038230.json
deleted file mode 100644
index 56752856ce8878f20746400dee54900bae103f8e..0000000000000000000000000000000000000000
--- a/conversations/conv_038230.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.5839274286428005,
-      "start_frame": 0,
-      "duration_frames": 89342,
-      "overlap": false,
-      "utterance_id": "1239-138254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1239-138254.flac |",
-      "real_speaker_id": "1239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.225701782150248,
-      "end_time": 12.299044003307419,
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-      "overlap": false,
-      "utterance_id": "6025-58759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58759.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "start_frame": 202252,
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-      "overlap": false,
-      "utterance_id": "7886-110518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110518.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.982416911430327,
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-      "overlap": false,
-      "utterance_id": "6025-56405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-56405.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1239-138254.flac |",
-      "real_speaker_id": "1239",
-      "position_frames": 89342
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.162265369841815,
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-      "duration": 1.8377346301581845,
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-      "duration_frames": 29403,
-      "overlap": false,
-      "utterance_id": "6025-58760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58760.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7886/cough/0009.wav",
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-      "start_time": 11.790466473470719,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6025/laugh/0013.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1239/cough/0052.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6025/cough/0066.wav",
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-      "start_time": 31.555580868867487,
-      "speaker_id": "6025"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038237.json b/conversations/conv_038237.json
deleted file mode 100644
index 48dba703a7e8621f50c7e9dc33016e8697fbdbc3..0000000000000000000000000000000000000000
--- a/conversations/conv_038237.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 5.566204773322795,
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-      "duration_frames": 89059,
-      "overlap": false,
-      "utterance_id": "3691-178103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178103.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8012-273145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273145.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-    {
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-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5104/laugh/0107.wav",
-      "duration": 0.5615068105020875,
-      "start_time": 5.446237627529806,
-      "speaker_id": "5104"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8012/cough/0039.wav",
-      "duration": 0.5574364787977518,
-      "start_time": 24.204430468503382,
-      "speaker_id": "8012"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5104/laugh/0075.wav",
-      "duration": 0.8628150280827891,
-      "start_time": 31.13718497191721,
-      "speaker_id": "5104"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5104/cough/0092.wav",
-      "duration": 0.7008164440566675,
-      "start_time": 28.68248768082662,
-      "speaker_id": "5104"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038247.json b/conversations/conv_038247.json
deleted file mode 100644
index 282ff90988ac0f3738fdaa1f358af0f22b5300a9..0000000000000000000000000000000000000000
--- a/conversations/conv_038247.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.948553301495675,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.099134336973035,
-      "duration": 6.099134336973035,
-      "start_frame": 0,
-      "duration_frames": 97586,
-      "overlap": false,
-      "utterance_id": "4519-80189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-80189.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.687618816909656,
-      "end_time": 11.449506210470002,
-      "duration": 4.761887393560345,
-      "start_frame": 107001,
-      "duration_frames": 76190,
-      "overlap": false,
-      "utterance_id": "561-126313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126313.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.926341057034204,
-      "end_time": 18.812737803229034,
-      "duration": 6.886396746194828,
-      "start_frame": 190821,
-      "duration_frames": 110182,
-      "overlap": false,
-      "utterance_id": "4519-80189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-80189.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 97586
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.52522812219141,
-      "end_time": 24.981278749562772,
-      "duration": 5.456050627371362,
-      "start_frame": 312403,
-      "duration_frames": 87296,
-      "overlap": false,
-      "utterance_id": "561-126319",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126319.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.08499955342235,
-      "end_time": 31.948553301495675,
-      "duration": 5.863553748073326,
-      "start_frame": 417359,
-      "duration_frames": 93816,
-      "overlap": false,
-      "utterance_id": "4519-6171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 14.830236374898652
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
-      "start_time": 3.4836500343718044
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/561/cough/0090.wav",
-      "duration": 0.42092092449438223,
-      "start_time": 11.474491098092422,
-      "speaker_id": "561"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/561/laugh/0085.wav",
-      "duration": 1.12,
-      "start_time": 18.259702721961446,
-      "speaker_id": "561"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038251.json b/conversations/conv_038251.json
deleted file mode 100644
index 37f73b71d3fc853a9c2b3cdefeee9c0b1ab33c57..0000000000000000000000000000000000000000
--- a/conversations/conv_038251.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.98988332293219,
-      "duration": 5.98988332293219,
-      "start_frame": 0,
-      "duration_frames": 95838,
-      "overlap": false,
-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.696762550945689,
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-      "duration": 5.756176223563361,
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-      "utterance_id": "8543-280376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280376.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 13.000988261984777,
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-      "overlap": true,
-      "utterance_id": "1166-14986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-14986.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.74222701688122,
-      "end_time": 22.623458290899666,
-      "duration": 4.881231274018447,
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-      "utterance_id": "8543-280375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.783626035548366,
-      "end_time": 27.089332787196895,
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-      "start_frame": 380538,
-      "duration_frames": 52891,
-      "overlap": false,
-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 95838
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.573108891319983,
-      "end_time": 32.0,
-      "duration": 4.426891108680017,
-      "start_frame": 441169,
-      "duration_frames": 70830,
-      "overlap": false,
-      "utterance_id": "8543-280375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280375.flac |",
-      "real_speaker_id": "8543",
-      "position_frames": 78099
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "start_time": 3.758978011873564
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1166/laugh/0005.wav",
-      "duration": 0.9163712220873144,
-      "start_time": 0,
-      "speaker_id": "1166"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1166/cough/0068.wav",
-      "duration": 1.29329120562221,
-      "start_time": 0,
-      "speaker_id": "1166"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1166/laugh/0040.wav",
-      "duration": 0.7225356277342398,
-      "start_time": 15.771864295180016,
-      "speaker_id": "1166"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038260.json b/conversations/conv_038260.json
deleted file mode 100644
index 216fd8bdc1767268b91d5319ad2e508769c829d9..0000000000000000000000000000000000000000
--- a/conversations/conv_038260.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.186742042954684,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.796146186957489,
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-      "overlap": false,
-      "utterance_id": "8066-114256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-114256.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.959771622633783,
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-      "duration": 5.12240447027087,
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-      "duration_frames": 81958,
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-      "utterance_id": "3955-181687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-181687.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.893492373350114,
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-      "duration_frames": 77103,
-      "overlap": false,
-      "utterance_id": "4013-11734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-11734.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.120835922306245,
-      "end_time": 22.769875742506606,
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-      "duration_frames": 74384,
-      "overlap": true,
-      "utterance_id": "8066-290901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-290901.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.496143177803607,
-      "end_time": 27.16863653968837,
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-      "start_frame": 375938,
-      "duration_frames": 58759,
-      "overlap": true,
-      "utterance_id": "3955-181705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-181705.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.030268122392986,
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-      "utterance_id": "8066-114256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-114256.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 108738
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_038267.json b/conversations/conv_038267.json
deleted file mode 100644
index 28588d0aee9a5a0708a766b1f0585c7152379030..0000000000000000000000000000000000000000
--- a/conversations/conv_038267.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.377069368543748,
-      "duration": 4.377069368543748,
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-      "utterance_id": "8040-111641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-111641.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.303468643956788,
-      "end_time": 9.50584375960333,
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-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
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-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.017920709828555,
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-      "overlap": true,
-      "utterance_id": "6683-63841",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-63841.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 16.274555197021282,
-      "speaker_id": "8040"
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-      "event_class": "cough",
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-      "speaker_id": "8040"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_038271.json b/conversations/conv_038271.json
deleted file mode 100644
index 02a2d1c6e90aa36301b14a31199c22b5097a6502..0000000000000000000000000000000000000000
--- a/conversations/conv_038271.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134887.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.539742908376518,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 74027
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.22182010475708,
-      "end_time": 29.019040167758206,
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-      "utterance_id": "1154-134887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134887.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 91185
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.388681106064404,
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-      "duration": 2.6113188939355965,
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-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 73672
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_15.wav",
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-      "duration": 1.32,
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-      "speaker_id": "1154"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038276.json b/conversations/conv_038276.json
deleted file mode 100644
index 86be8ae46952e6c15c5bd65d6f00f04522177366..0000000000000000000000000000000000000000
--- a/conversations/conv_038276.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22581.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-124526.flac |",
-      "real_speaker_id": "639",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125274.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.980344779741955,
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-      "utterance_id": "2589-22581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22581.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 83559
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "639-143022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-143022.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_038284.json b/conversations/conv_038284.json
deleted file mode 100644
index 15cc2483dc74876eb8be396601f397a10d3c83fc..0000000000000000000000000000000000000000
--- a/conversations/conv_038284.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/405-130894.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "4860",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_038288.json b/conversations/conv_038288.json
deleted file mode 100644
index 139d0757cbb6c9b6332471c045ce5c1ce77f2363..0000000000000000000000000000000000000000
--- a/conversations/conv_038288.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.0053392037629,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1819-144401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144401.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 1.0053117186808989
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
-      "duration": 0.6340362811791384,
-      "start_time": 24.720167922402545
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
-      "duration": 1.1702098698578478,
-      "start_time": 10.930680602571371
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/466/laugh/0085.wav",
-      "duration": 1.08,
-      "start_time": 26.963989581974488,
-      "speaker_id": "466"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038292.json b/conversations/conv_038292.json
deleted file mode 100644
index 0e3ac879cd33576ba56d6e0f875bb9ec1156959a..0000000000000000000000000000000000000000
--- a/conversations/conv_038292.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.299086749955147,
-      "duration": 5.299086749955147,
-      "start_frame": 0,
-      "duration_frames": 84785,
-      "overlap": false,
-      "utterance_id": "7467-69610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.274946824294854,
-      "end_time": 11.559035388183425,
-      "duration": 5.28408856388857,
-      "start_frame": 100399,
-      "duration_frames": 84545,
-      "overlap": false,
-      "utterance_id": "4594-902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-902.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.122194190152658,
-      "end_time": 16.09003192113717,
-      "duration": 3.967837730984514,
-      "start_frame": 193955,
-      "duration_frames": 63485,
-      "overlap": false,
-      "utterance_id": "8040-260923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-260923.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.217434112060076,
-      "end_time": 21.529891996204988,
-      "duration": 4.312457884144914,
-      "start_frame": 275478,
-      "duration_frames": 68999,
-      "overlap": false,
-      "utterance_id": "4594-902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-902.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 84545
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.42341540935733,
-      "end_time": 26.99242682433674,
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-      "start_frame": 358774,
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-      "overlap": false,
-      "utterance_id": "8040-111641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-111641.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.001390029039143,
-      "end_time": 32.0,
-      "duration": 3.9986099709608567,
-      "start_frame": 448022,
-      "duration_frames": 63977,
-      "overlap": false,
-      "utterance_id": "4594-902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4594-902.flac |",
-      "real_speaker_id": "4594",
-      "position_frames": 153544
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 10.91918776044407,
-      "start_time": 3.3525166673740934
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7467/laugh/0072.wav",
-      "duration": 1.1210359585813698,
-      "start_time": 0,
-      "speaker_id": "7467"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4594/laugh/0091.wav",
-      "duration": 1.451668134371428,
-      "start_time": 21.650270827235882,
-      "speaker_id": "4594"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8040/cough/0072.wav",
-      "duration": 1.020092934152174,
-      "start_time": 27.110268713151005,
-      "speaker_id": "8040"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038299.json b/conversations/conv_038299.json
deleted file mode 100644
index b1cc90d2686bb4ae2d3b63167153ab1171537d70..0000000000000000000000000000000000000000
--- a/conversations/conv_038299.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.150510209686182,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "153-126652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126652.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.866438875488397,
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-      "utterance_id": "6075-57154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57154.flac |",
-      "real_speaker_id": "6075",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.825065436141113,
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-      "duration_frames": 64968,
-      "overlap": false,
-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.642928844984798,
-      "end_time": 21.014201290861994,
-      "duration": 3.371272445877195,
-      "start_frame": 282286,
-      "duration_frames": 53940,
-      "overlap": false,
-      "utterance_id": "6075-57154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57154.flac |",
-      "real_speaker_id": "6075",
-      "position_frames": 86683
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.815898339107548,
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-      "utterance_id": "153-126652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126652.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 93463
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.929567354944098,
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-      "duration": 3.220942854742084,
-      "start_frame": 446873,
-      "duration_frames": 51535,
-      "overlap": true,
-      "utterance_id": "6075-57154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57154.flac |",
-      "real_speaker_id": "6075",
-      "position_frames": 140623
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "start_time": 13.003218407742509,
-      "speaker_id": "110"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038302.json b/conversations/conv_038302.json
deleted file mode 100644
index 15c90c9f2289f562ed084648548cc8fe108e7493..0000000000000000000000000000000000000000
--- a/conversations/conv_038302.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 78890,
-      "overlap": false,
-      "utterance_id": "1052-139307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1052-139307.flac |",
-      "real_speaker_id": "1052",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.935526840442157,
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-      "overlap": true,
-      "utterance_id": "4629-19366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
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-    {
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-      "utterance_id": "1052-139308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1052-139308.flac |",
-      "real_speaker_id": "1052",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 69676
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-    {
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-      "speaker_id": 0,
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 2.799733289149465,
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-      "duration_frames": 44795,
-      "overlap": false,
-      "utterance_id": "4629-19366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 141900
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-  "paralinguistic_events": [
-    {
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4629/laugh/0115.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038314.json b/conversations/conv_038314.json
deleted file mode 100644
index eddecf6297ea6ccc64ba991c48cfe5038e32121e..0000000000000000000000000000000000000000
--- a/conversations/conv_038314.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.8771411586365705,
-      "duration": 5.8771411586365705,
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-      "utterance_id": "4161-185349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.146680527121303,
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-      "utterance_id": "4800-38660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-38660.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "3318-164984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164984.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 1.9854397753078998,
-      "speaker_id": "4161"
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-      "start_time": 0,
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-      "event_class": "cough",
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-      "duration": 1.0,
-      "start_time": 9.8965142753146,
-      "speaker_id": "4800"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3318/laugh/0102.wav",
-      "duration": 1.16,
-      "start_time": 11.93103201453499,
-      "speaker_id": "3318"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4800/laugh/0023.wav",
-      "duration": 1.08,
-      "start_time": 17.68909840462489,
-      "speaker_id": "4800"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038318.json b/conversations/conv_038318.json
deleted file mode 100644
index 9d42a1a228b648d46f5b48c994f8b86f4cd0e304..0000000000000000000000000000000000000000
--- a/conversations/conv_038318.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.554141588871727,
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-      "overlap": false,
-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.879445000800657,
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-      "utterance_id": "402-130001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-130001.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 104866
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.405046283169128,
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-      "utterance_id": "402-130001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-130001.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 86076
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.403785150855516,
-      "end_time": 32.0,
-      "duration": 4.596214849144484,
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-      "utterance_id": "510-130103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130103.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 4.285118859011309,
-      "start_time": 7.377677642115497
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/laugh/0075.wav",
-      "duration": 0.9293929359555899,
-      "start_time": 6.764474471384934,
-      "speaker_id": "1487"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1487/cough/0107.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "1487"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/510/laugh/0047.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "510"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038319.json b/conversations/conv_038319.json
deleted file mode 100644
index 4f8883ea1bd6cf38ab58ecbfbe8793d1b9a24bb6..0000000000000000000000000000000000000000
--- a/conversations/conv_038319.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.88382739266165,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-48224.flac |",
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-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66269.flac |",
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-      "utterance_id": "7009-2331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.194760360234419,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-48224.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 68694
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.27035881716449,
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-      "real_speaker_id": "7009",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7657-104717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
-      "real_speaker_id": "7657",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038322.json b/conversations/conv_038322.json
deleted file mode 100644
index ad5232002f21e1fc828f8095bf097ee90b63ed91..0000000000000000000000000000000000000000
--- a/conversations/conv_038322.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1175-126220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1175-126220.flac |",
-      "real_speaker_id": "1175",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-283452.flac |",
-      "real_speaker_id": "8238",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1175-126221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1175-126221.flac |",
-      "real_speaker_id": "1175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.163135593115555,
-      "end_time": 22.326351483727105,
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-      "duration_frames": 82611,
-      "overlap": false,
-      "utterance_id": "8238-283452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-283452.flac |",
-      "real_speaker_id": "8238",
-      "position_frames": 92741
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.969879341499453,
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-      "utterance_id": "1175-126221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1175-126221.flac |",
-      "real_speaker_id": "1175",
-      "position_frames": 65725
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.37449409500555,
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-      "duration": 2.6255059049944514,
-      "start_frame": 469991,
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-      "utterance_id": "8238-283452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-283452.flac |",
-      "real_speaker_id": "8238",
-      "position_frames": 175352
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_038325.json b/conversations/conv_038325.json
deleted file mode 100644
index a73a88c7cf5b7090e319f4fc96475a24d94d3b42..0000000000000000000000000000000000000000
--- a/conversations/conv_038325.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8190-284435",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284435.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1795-142410.flac |",
-      "real_speaker_id": "1795",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284435.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 76493
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "1795",
-      "position_frames": 81918
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1795-142410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1795-142410.flac |",
-      "real_speaker_id": "1795",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038333.json b/conversations/conv_038333.json
deleted file mode 100644
index 94c07250724af369e8776b5700b190ba87472d8e..0000000000000000000000000000000000000000
--- a/conversations/conv_038333.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.204523150918641,
-      "duration": 3.204523150918641,
-      "start_frame": 0,
-      "duration_frames": 51272,
-      "overlap": false,
-      "utterance_id": "1685-146847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146847.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8394296104244208,
-      "end_time": 8.845781012357191,
-      "duration": 5.006351401932771,
-      "start_frame": 61430,
-      "duration_frames": 80101,
-      "overlap": false,
-      "utterance_id": "7314-93277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-93277.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.054763761507301,
-      "end_time": 16.02171743845462,
-      "duration": 6.966953676947318,
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-      "overlap": false,
-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.63535401486554,
-      "end_time": 20.117048619023034,
-      "duration": 3.4816946041574943,
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-      "duration_frames": 55707,
-      "overlap": false,
-      "utterance_id": "1685-146847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146847.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 51272
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.003135890136736,
-      "end_time": 25.70531085616645,
-      "duration": 4.702174966029713,
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-      "duration_frames": 75234,
-      "overlap": false,
-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 111471
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.417474810253623,
-      "end_time": 32.0,
-      "duration": 5.582525189746377,
-      "start_frame": 422679,
-      "duration_frames": 89320,
-      "overlap": false,
-      "utterance_id": "1685-146849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146849.flac |",
-      "real_speaker_id": "1685",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
-      "duration": 0.6760544217687074,
-      "start_time": 4.0798736961437605
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1685/cough/0001.wav",
-      "duration": 0.7141795910312003,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1685/laugh/0118.wav",
-      "duration": 0.8650747022086431,
-      "start_time": 16.97816614224862,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1685/cough/0002.wav",
-      "duration": 0.7741377776645237,
-      "start_time": 20.14191409638387,
-      "speaker_id": "1685"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1685/cough/0112.wav",
-      "duration": 1.36,
-      "start_time": 24.914049157461438,
-      "speaker_id": "1685"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038334.json b/conversations/conv_038334.json
deleted file mode 100644
index 5c106d684d30835d8d876797ffb20152b2ca1cc6..0000000000000000000000000000000000000000
--- a/conversations/conv_038334.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.523737844821493,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3294-167609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167609.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.69675524968922,
-      "end_time": 14.008662461261853,
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-      "utterance_id": "2960-155152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "3294-167597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167597.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2960-155151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155151.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.710795852285933,
-      "end_time": 28.298585675368074,
-      "duration": 3.587789823082139,
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-      "overlap": false,
-      "utterance_id": "3294-167609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167609.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 104965
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155151.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 64310
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_038335.json b/conversations/conv_038335.json
deleted file mode 100644
index e5a39e02ebbe516ceea332daf335d6035b332e62..0000000000000000000000000000000000000000
--- a/conversations/conv_038335.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "start_frame": 0,
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-      "utterance_id": "636-123163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-123163.flac |",
-      "real_speaker_id": "636",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128331.flac |",
-      "real_speaker_id": "636",
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-      "real_speaker_id": "1579",
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-      "real_speaker_id": "636",
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-    {
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-      "utterance_id": "636-123163",
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-  "background_events": [
-    {
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_038338.json b/conversations/conv_038338.json
deleted file mode 100644
index 141a2143f9244d04e4c070d171aace4d5e399c42..0000000000000000000000000000000000000000
--- a/conversations/conv_038338.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "6892-256226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6892-256226.flac |",
-      "real_speaker_id": "6892",
-      "position_frames": 0
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6892/cough/0000.wav",
-      "duration": 1.28,
-      "start_time": 1.770364802888862,
-      "speaker_id": "6892"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6892/laugh/0093.wav",
-      "duration": 1.52,
-      "start_time": 18.823672754944216,
-      "speaker_id": "6892"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038342.json b/conversations/conv_038342.json
deleted file mode 100644
index a4b78f1543255687fae53d273f62b2565602279c..0000000000000000000000000000000000000000
--- a/conversations/conv_038342.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99826913186342,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.525728281208799,
-      "duration": 5.525728281208799,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6709-80475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6709-80475.flac |",
-      "real_speaker_id": "6709",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.451214552737736,
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-      "utterance_id": "6436-111962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6436-111962.flac |",
-      "real_speaker_id": "6436",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.793200198894489,
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-      "duration": 3.3780797716316937,
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-      "duration_frames": 54049,
-      "overlap": true,
-      "utterance_id": "6709-80475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6709-80475.flac |",
-      "real_speaker_id": "6709",
-      "position_frames": 88411
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.655705575014515,
-      "end_time": 21.89094700650226,
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-      "overlap": false,
-      "utterance_id": "7215-91628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91628.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.244351011682138,
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-      "overlap": false,
-      "utterance_id": "6709-74041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6709-74041.flac |",
-      "real_speaker_id": "6709",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.25525714984627,
-      "end_time": 31.99826913186342,
-      "duration": 5.743011982017151,
-      "start_frame": 420084,
-      "duration_frames": 91888,
-      "overlap": false,
-      "utterance_id": "6709-74047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6709-74047.flac |",
-      "real_speaker_id": "6709",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_0.wav",
-      "duration": 0.5264172335600907,
-      "start_time": 16.900723683730682
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-  "paralinguistic_events": [
-    {
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-      "speaker_id": "6709"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6436/laugh/0001.wav",
-      "duration": 0.8232943933822188,
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-      "speaker_id": "6436"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6709/laugh/0113.wav",
-      "duration": 1.1646273211290958,
-      "start_time": 9.6181419971365,
-      "speaker_id": "6709"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7215/laugh/0113.wav",
-      "duration": 1.28,
-      "start_time": 14.341662192291833,
-      "speaker_id": "7215"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6709/laugh/0142.wav",
-      "duration": 0.92,
-      "start_time": 25.288850712464242,
-      "speaker_id": "6709"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038343.json b/conversations/conv_038343.json
deleted file mode 100644
index 019e6ddde1e87f07a3f225e6aa4274591630e1dc..0000000000000000000000000000000000000000
--- a/conversations/conv_038343.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7739-107483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-107483.flac |",
-      "real_speaker_id": "7739",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.458369133841563,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1811-129443.flac |",
-      "real_speaker_id": "1811",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-8592.flac |",
-      "real_speaker_id": "7739",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.050536121611042,
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-      "overlap": false,
-      "utterance_id": "8009-291933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8009-291933.flac |",
-      "real_speaker_id": "8009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.063465706427202,
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-      "start_frame": 401015,
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-      "overlap": false,
-      "utterance_id": "7739-107483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-107483.flac |",
-      "real_speaker_id": "7739",
-      "position_frames": 79192
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.897041807424426,
-      "end_time": 32.0,
-      "duration": 2.1029581925755743,
-      "start_frame": 478352,
-      "duration_frames": 33647,
-      "overlap": false,
-      "utterance_id": "1811-129443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1811-129443.flac |",
-      "real_speaker_id": "1811",
-      "position_frames": 78861
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.7059922096466775,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
-      "duration": 0.4961451247165533,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7739/laugh/0074.wav",
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-      "speaker_id": "7739"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1811/laugh/0067.wav",
-      "duration": 1.24,
-      "start_time": 4.061459114402762,
-      "speaker_id": "1811"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8009/laugh/0130.wav",
-      "duration": 0.8590101216817002,
-      "start_time": 24.47751144169144,
-      "speaker_id": "8009"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1811/laugh/0037.wav",
-      "duration": 1.2622831216569106,
-      "start_time": 28.342019045900795,
-      "speaker_id": "1811"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038355.json b/conversations/conv_038355.json
deleted file mode 100644
index 6017aabe4ebd961182849c51ba4292edd608ef3f..0000000000000000000000000000000000000000
--- a/conversations/conv_038355.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4791-25378",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25378.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "4791",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-61758.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "8666-293945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293945.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.911665607742652,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25378.flac |",
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-      "position_frames": 71826
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4586-19665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-19665.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.8548412978662,
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-      "duration": 2.1451587021337986,
-      "start_frame": 477677,
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-      "overlap": false,
-      "utterance_id": "4791-25377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25377.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.54,
-      "start_time": 28.044471402611936,
-      "speaker_id": "4791"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038359.json b/conversations/conv_038359.json
deleted file mode 100644
index bab4e14cd2bf3d3b0bd12241a28d7e8b1f8b3bee..0000000000000000000000000000000000000000
--- a/conversations/conv_038359.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "3869-699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-699.flac |",
-      "real_speaker_id": "3869",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8466",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-700.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3869-700.flac |",
-      "real_speaker_id": "3869",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "8466",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-295007.flac |",
-      "real_speaker_id": "8664",
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-  "background_events": [],
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-      "event_class": "laugh",
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-      "duration": 1.54,
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-      "event_class": "cough",
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-      "duration": 0.512728741673564,
-      "start_time": 25.66744271245746,
-      "speaker_id": "3869"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038363.json b/conversations/conv_038363.json
deleted file mode 100644
index 8eb99943e29c46d3d2d3c36f8f3475579e3f7019..0000000000000000000000000000000000000000
--- a/conversations/conv_038363.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "585-294811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.99467910723051,
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-      "utterance_id": "2140-39822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-39822.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.689544433743947,
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-      "overlap": false,
-      "utterance_id": "585-294811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 82097
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.113314958578528,
-      "end_time": 21.962374346320704,
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-      "utterance_id": "2140-160867",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-160867.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.984969323541772,
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-      "utterance_id": "2140-39822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-39822.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 97386
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.261981497473982,
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-      "utterance_id": "4238-12895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4238-12895.flac |",
-      "real_speaker_id": "4238",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "speaker_id": "2140"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038364.json b/conversations/conv_038364.json
deleted file mode 100644
index f87374ea27302da45bb53312dd5cb92b5242dd39..0000000000000000000000000000000000000000
--- a/conversations/conv_038364.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6077-56146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-56146.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58756.flac |",
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-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.787362239005155,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 107317
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6077-58755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58755.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-    {
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-      "speaker_id": "6077"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038372.json b/conversations/conv_038372.json
deleted file mode 100644
index 8760ff506fb4916ba4b20ead43f1266172df81b9..0000000000000000000000000000000000000000
--- a/conversations/conv_038372.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4039-184266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "2351-151965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2351-151965.flac |",
-      "real_speaker_id": "2351",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "4039-184265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184265.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.422366759127495,
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-      "duration_frames": 62435,
-      "overlap": true,
-      "utterance_id": "2351-151965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2351-151965.flac |",
-      "real_speaker_id": "2351",
-      "position_frames": 75681
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.772148085025158,
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-      "utterance_id": "2624-88360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.803259345343104,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184265.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 111594
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_038375.json b/conversations/conv_038375.json
deleted file mode 100644
index 0d6b4e3defd22a25d996097e60f1cb00e147f624..0000000000000000000000000000000000000000
--- a/conversations/conv_038375.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.260536638721668,
-      "duration": 3.260536638721668,
-      "start_frame": 0,
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-      "utterance_id": "3807-4923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4923.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.54637906159544,
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-      "utterance_id": "6145-54685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54685.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.733941140200736,
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-      "utterance_id": "3807-4923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4923.flac |",
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-      "position_frames": 52168
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125878.flac |",
-      "real_speaker_id": "428",
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-      "real_speaker_id": "6145",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "3807-4955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "cough",
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-      "duration": 0.8381851735224344,
-      "start_time": 19.256969746997758,
-      "speaker_id": "428"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038379.json b/conversations/conv_038379.json
deleted file mode 100644
index 8cf343051251fb4ddedac43600228afde4d678c6..0000000000000000000000000000000000000000
--- a/conversations/conv_038379.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.514251203399315,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1250-135782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135782.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 4.687711229131902,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "1336-138115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138115.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "duration_frames": 53997,
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-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.409440188104007,
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-      "utterance_id": "8272-279781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 49621
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.80984300010668,
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-      "duration_frames": 91270,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138115.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 103953
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "speaker_id": "1336"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038380.json b/conversations/conv_038380.json
deleted file mode 100644
index 7dee72c5d6caecac504c1a29faa546fd629a70a7..0000000000000000000000000000000000000000
--- a/conversations/conv_038380.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5854-287849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-287849.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-287849.flac |",
-      "real_speaker_id": "5854",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262284.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 0
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-      "utterance_id": "3675-187020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-187020.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8644-262284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262284.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 95884
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "speaker_id": "8644"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3675/laugh/0102.wav",
-      "duration": 0.6780045381286801,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.7461842687112112,
-      "start_time": 31.25381573128879,
-      "speaker_id": "8644"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038396.json b/conversations/conv_038396.json
deleted file mode 100644
index 109fc3b7c634015b0e089f7afdfeace525b23212..0000000000000000000000000000000000000000
--- a/conversations/conv_038396.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.971030180749451,
-      "duration": 4.971030180749451,
-      "start_frame": 0,
-      "duration_frames": 79536,
-      "overlap": false,
-      "utterance_id": "3479-153286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153286.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "245-122648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.901863044067884,
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-      "duration_frames": 62691,
-      "overlap": false,
-      "utterance_id": "3479-153281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153281.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.299293001862077,
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-      "duration": 4.531467086015666,
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-      "duration_frames": 72503,
-      "overlap": false,
-      "utterance_id": "3479-153280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153280.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.014218386111057,
-      "end_time": 24.266749259317457,
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-      "utterance_id": "3479-153281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153281.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 62691
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "245-122648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 75398
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.6014362848829,
-      "end_time": 32.0,
-      "duration": 1.398563715117099,
-      "start_frame": 489622,
-      "duration_frames": 22377,
-      "overlap": false,
-      "utterance_id": "3479-153280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153280.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 72503
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_5.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3479/laugh/0072.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3479/laugh/0029.wav",
-      "duration": 1.76,
-      "start_time": 24.47713135294255,
-      "speaker_id": "3479"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3479/cough/0047.wav",
-      "duration": 0.5444422460155166,
-      "start_time": 19.37875096359663,
-      "speaker_id": "3479"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3479/laugh/0137.wav",
-      "duration": 1.66,
-      "start_time": 28.760071112506434,
-      "speaker_id": "3479"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038400.json b/conversations/conv_038400.json
deleted file mode 100644
index 160b7574163f6d61f2b27447a5f290045abf9098..0000000000000000000000000000000000000000
--- a/conversations/conv_038400.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.893716835552258,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_038416.json b/conversations/conv_038416.json
deleted file mode 100644
index 8e35cf4548394627162dc2bba73e94c5fa096b1d..0000000000000000000000000000000000000000
--- a/conversations/conv_038416.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_038420.json b/conversations/conv_038420.json
deleted file mode 100644
index df92d999a077280062e06d3801a19ff955e36222..0000000000000000000000000000000000000000
--- a/conversations/conv_038420.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_038427.json b/conversations/conv_038427.json
deleted file mode 100644
index 47ea5499aadadfeb743ba9edf336e0bc8064e40a..0000000000000000000000000000000000000000
--- a/conversations/conv_038427.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
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-      "duration": 0.6029047169546027,
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-      "speaker_id": "3912"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4352/laugh/0005.wav",
-      "duration": 1.32,
-      "start_time": 29.931451156568084,
-      "speaker_id": "4352"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4352/cough/0147.wav",
-      "duration": 0.6187550140836968,
-      "start_time": 29.207703676075514,
-      "speaker_id": "4352"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038436.json b/conversations/conv_038436.json
deleted file mode 100644
index bc6e1ba5a1fad45c32b9b03177f1accc380c62a2..0000000000000000000000000000000000000000
--- a/conversations/conv_038436.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.27402924425384,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.932845405873096,
-      "duration": 6.932845405873096,
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-      "overlap": false,
-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.271790954689383,
-      "end_time": 11.36969500705683,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2853-164188.flac |",
-      "real_speaker_id": "2853",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.833641537783205,
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-      "utterance_id": "218-131206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.42146927089208,
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-      "utterance_id": "6912-70847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "218-131205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.999276479403587,
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-      "duration": 3.274752764850252,
-      "start_frame": 447988,
-      "duration_frames": 52396,
-      "overlap": true,
-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 110925
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2853/laugh/0076.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 16.005066552365566,
-      "speaker_id": "6912"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/218/laugh/0002.wav",
-      "duration": 1.0,
-      "start_time": 28.760186336840565,
-      "speaker_id": "218"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/218/cough/0063.wav",
-      "duration": 1.149122546778526,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.6602737806338764,
-      "start_time": 31.339726219366124,
-      "speaker_id": "6912"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038437.json b/conversations/conv_038437.json
deleted file mode 100644
index bc139d5a53171a05921670b7255746a3fd0fc63d..0000000000000000000000000000000000000000
--- a/conversations/conv_038437.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.4091256576386835,
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-      "utterance_id": "6518-66465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66465.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
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-      "start_time": 5.024310307655704,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3848-28169.flac |",
-      "real_speaker_id": "3848",
-      "position_frames": 0
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-      "utterance_id": "2445-148556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
-      "real_speaker_id": "2445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.313967664466624,
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-      "utterance_id": "6518-66464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66464.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.241707708960014,
-      "end_time": 27.958121378956548,
-      "duration": 6.716413669996536,
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-      "duration_frames": 107462,
-      "overlap": false,
-      "utterance_id": "2445-148556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
-      "real_speaker_id": "2445",
-      "position_frames": 71417
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.755541401890564,
-      "end_time": 32.0,
-      "duration": 3.2444585981094356,
-      "start_frame": 460088,
-      "duration_frames": 51911,
-      "overlap": false,
-      "utterance_id": "6518-66465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66465.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 70546
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3848/laugh/0038.wav",
-      "duration": 1.6,
-      "start_time": 3.1609480696665067,
-      "speaker_id": "3848"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6518/laugh/0044.wav",
-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "6518"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6518/cough/0072.wav",
-      "duration": 0.9303708048067256,
-      "start_time": 27.718374160281467,
-      "speaker_id": "6518"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038441.json b/conversations/conv_038441.json
deleted file mode 100644
index 8f281e59dfb20ab1b8114c70277f82b98d21cce6..0000000000000000000000000000000000000000
--- a/conversations/conv_038441.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3171-68344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-68344.flac |",
-      "real_speaker_id": "3171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84007.flac |",
-      "real_speaker_id": "7199",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84008.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.75921711885981,
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-      "duration_frames": 76696,
-      "overlap": false,
-      "utterance_id": "3171-7574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-7574.flac |",
-      "real_speaker_id": "3171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.577406539392285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84008.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 68892
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.331181387548504,
-      "end_time": 30.199947631998292,
-      "duration": 4.8687662444497875,
-      "start_frame": 405298,
-      "duration_frames": 77900,
-      "overlap": false,
-      "utterance_id": "3171-7574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-7574.flac |",
-      "real_speaker_id": "3171",
-      "position_frames": 76696
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.322499180587606,
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-      "duration": 1.6775008194123942,
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-      "utterance_id": "7199-84008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84008.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 134961
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_1.wav",
-      "duration": 1.1098954585021694,
-      "start_time": 5.389451811694815
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3171/laugh/0094.wav",
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-      "start_time": 0,
-      "speaker_id": "3171"
-    },
-    {
-      "event_class": "cough",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3171/laugh/0089.wav",
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-      "start_time": 27.405493259301767,
-      "speaker_id": "3171"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3171/cough/0079.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7199/laugh/0062.wav",
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-      "speaker_id": "7199"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038457.json b/conversations/conv_038457.json
deleted file mode 100644
index 3d099373dcb35e8a6f071534db63c62aed421ac2..0000000000000000000000000000000000000000
--- a/conversations/conv_038457.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1827-143625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2582",
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-    {
-      "segment_id": "seg0002",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_038461.json b/conversations/conv_038461.json
deleted file mode 100644
index 2d202f2ad3b92baf1596200b057e6cf4f85c0a9c..0000000000000000000000000000000000000000
--- a/conversations/conv_038461.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 72977
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "8975",
-      "position_frames": 143329
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-130137.flac |",
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-      "position_frames": 0
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_038477.json b/conversations/conv_038477.json
deleted file mode 100644
index 2025abc62721553fa9034df25ebbdf7c6f1be220..0000000000000000000000000000000000000000
--- a/conversations/conv_038477.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "5147",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_038482.json b/conversations/conv_038482.json
deleted file mode 100644
index 56bde17312815ab645c08aed8d01b9d90e7c691b..0000000000000000000000000000000000000000
--- a/conversations/conv_038482.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_038494.json b/conversations/conv_038494.json
deleted file mode 100644
index 16bbfcba62b8a2cd4ea2510f602b8b8d63aec0b4..0000000000000000000000000000000000000000
--- a/conversations/conv_038494.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-174992.flac |",
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-      "utterance_id": "3923-181420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-181420.flac |",
-      "real_speaker_id": "3923",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.425832993473087,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166572.flac |",
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-      "position_frames": 91352
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 0.504783123591011,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-181420.flac |",
-      "real_speaker_id": "3923",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Running_water",
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-      "speaker_id": "3923"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038498.json b/conversations/conv_038498.json
deleted file mode 100644
index 0d5e4de0eee0ab254259fd5721c45e0a4cd4c759..0000000000000000000000000000000000000000
--- a/conversations/conv_038498.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.44193423980996,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.219189739024678,
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-      "overlap": false,
-      "utterance_id": "7384-84010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7384-84010.flac |",
-      "real_speaker_id": "7384",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.066862232377888,
-      "end_time": 9.53739138018184,
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-      "utterance_id": "781-126737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-126737.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.097442309650315,
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-      "overlap": false,
-      "utterance_id": "6415-100596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-100596.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.393418244975805,
-      "end_time": 23.323715646096456,
-      "duration": 6.930297401120652,
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-      "utterance_id": "781-126737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-126737.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 55528
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.116031850746634,
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-      "duration": 4.5818702689610715,
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-      "duration_frames": 73309,
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-      "utterance_id": "7384-84010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7384-84010.flac |",
-      "real_speaker_id": "7384",
-      "position_frames": 83507
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.088514672100224,
-      "end_time": 31.44193423980996,
-      "duration": 2.353419567709736,
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-      "duration_frames": 37654,
-      "overlap": true,
-      "utterance_id": "6415-111615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
-      "duration": 0.6165759637188208,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7384/laugh/0083.wav",
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-      "event_class": "laugh",
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-      "duration": 1.44,
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-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 30.207442576776767,
-      "speaker_id": "6415"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038504.json b/conversations/conv_038504.json
deleted file mode 100644
index 6658f8f3655e270fbe7d342d8d70943c155295ad..0000000000000000000000000000000000000000
--- a/conversations/conv_038504.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7756-84187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-84187.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.78906201876366,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "7756-287863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-287863.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 65086
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-287863.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 52192
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.0712952801127,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 123862
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "duration": 3.451718295659069,
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/cough/0072.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7756/cough/0059.wav",
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-      "start_time": 11.271490112788726,
-      "speaker_id": "7756"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/laugh/0012.wav",
-      "duration": 1.24,
-      "start_time": 20.723765749770113,
-      "speaker_id": "7263"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/cough/0029.wav",
-      "duration": 1.4845973054801374,
-      "start_time": 17.1638256384583,
-      "speaker_id": "7263"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038508.json b/conversations/conv_038508.json
deleted file mode 100644
index bebda4c12c4e98acb0fc7f12bfb0b5fcd72d556b..0000000000000000000000000000000000000000
--- a/conversations/conv_038508.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.264488988223497,
-      "duration": 6.264488988223497,
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-      "overlap": false,
-      "utterance_id": "7823-103122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7823-103122.flac |",
-      "real_speaker_id": "7823",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.909887505785988,
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-      "duration_frames": 71395,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8710-286293.flac |",
-      "real_speaker_id": "8710",
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-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.54673442124028,
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-      "duration": 4.289838620514606,
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-      "overlap": false,
-      "utterance_id": "7823-103122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7823-103122.flac |",
-      "real_speaker_id": "7823",
-      "position_frames": 100231
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.010840872706602,
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-      "overlap": true,
-      "utterance_id": "667-107247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 91164
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.58994792852706,
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-      "duration": 2.41005207147294,
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-      "overlap": false,
-      "utterance_id": "667-105002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-      "duration": 2.5502753390642092,
-      "start_time": 3.9989099687228786
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_038512.json b/conversations/conv_038512.json
deleted file mode 100644
index 286dce0d9b83f588f166e4f26cb507776fc2cdb3..0000000000000000000000000000000000000000
--- a/conversations/conv_038512.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.119000828114785,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.96989317563582,
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-      "utterance_id": "5929-48603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 79518
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-      "segment_id": "seg0003",
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-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.922438619798843,
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-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 95162
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.015416410720164,
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-      "utterance_id": "5929-57805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_8.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1813/laugh/0084.wav",
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-      "start_time": 17.18140537363414,
-      "speaker_id": "1813"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038519.json b/conversations/conv_038519.json
deleted file mode 100644
index 3b1c0b8308a30751687ed21b19323999d1c9c2df..0000000000000000000000000000000000000000
--- a/conversations/conv_038519.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.060742520530859,
-      "duration": 6.060742520530859,
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-      "overlap": false,
-      "utterance_id": "125-121124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/125-121124.flac |",
-      "real_speaker_id": "125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.440011728299047,
-      "end_time": 10.75840339860277,
-      "duration": 4.318391670303723,
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-      "duration_frames": 69094,
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-      "utterance_id": "6846-76681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
-      "real_speaker_id": "6846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.013703400157613,
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-      "overlap": false,
-      "utterance_id": "125-121342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/125-121342.flac |",
-      "real_speaker_id": "125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.98519380400052,
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-      "utterance_id": "6846-76681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
-      "real_speaker_id": "6846",
-      "position_frames": 69094
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.482143006707126,
-      "end_time": 29.135870606679667,
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-      "utterance_id": "125-121342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/125-121342.flac |",
-      "real_speaker_id": "125",
-      "position_frames": 106047
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.980465675663446,
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-      "duration": 2.019534324336554,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
-      "real_speaker_id": "6846",
-      "position_frames": 164224
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "125"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6846/laugh/0065.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6846/laugh/0020.wav",
-      "duration": 1.16,
-      "start_time": 28.5722272251702,
-      "speaker_id": "6846"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038524.json b/conversations/conv_038524.json
deleted file mode 100644
index 8af62c190139244825053a4fd54d1ed170c40c92..0000000000000000000000000000000000000000
--- a/conversations/conv_038524.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.943653246133394,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4243-187023",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-187023.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.392656967083136,
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-      "utterance_id": "8199-284020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8199-284020.flac |",
-      "real_speaker_id": "8199",
-      "position_frames": 0
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-      "utterance_id": "6065-109178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-109178.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "4243-14929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-14929.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.828797628229562,
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-      "utterance_id": "8199-118869",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8199-118869.flac |",
-      "real_speaker_id": "8199",
-      "position_frames": 0
-    },
-    {
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-      "position_frames": 97818
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_038528.json b/conversations/conv_038528.json
deleted file mode 100644
index 371d1a9166892f510bb5e90c359cdd74cb18ad9d..0000000000000000000000000000000000000000
--- a/conversations/conv_038528.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.84510588230829,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1065-135665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-135665.flac |",
-      "real_speaker_id": "1065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.934356169785454,
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-      "utterance_id": "7981-112058",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112058.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7012-75354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7012-75354.flac |",
-      "real_speaker_id": "7012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.746051762944262,
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-      "start_frame": 219936,
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-      "overlap": true,
-      "utterance_id": "1065-134611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1065-134611.flac |",
-      "real_speaker_id": "1065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.10211906614383,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7012-75354.flac |",
-      "real_speaker_id": "7012",
-      "position_frames": 70152
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7981-112057",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038532.json b/conversations/conv_038532.json
deleted file mode 100644
index c154a60fb4b11c543fb5a7cd83d4d65a9dd198a9..0000000000000000000000000000000000000000
--- a/conversations/conv_038532.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "561-126313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126313.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5826-53497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-53497.flac |",
-      "real_speaker_id": "5826",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "4441-76262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76262.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    },
-    {
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76250.flac |",
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-      "utterance_id": "561-126312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126312.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_038545.json b/conversations/conv_038545.json
deleted file mode 100644
index 06042e8431d02667a7de1def195273088e095142..0000000000000000000000000000000000000000
--- a/conversations/conv_038545.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.06929793951925,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
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-      "utterance_id": "1926-147979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147979.flac |",
-      "real_speaker_id": "1926",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140041.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1926/laugh/0066.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038549.json b/conversations/conv_038549.json
deleted file mode 100644
index 64eae66cca13a97db06925ca231b579c5a79f3e1..0000000000000000000000000000000000000000
--- a/conversations/conv_038549.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.708104859151803,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
-      "real_speaker_id": "2391",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
-      "real_speaker_id": "2391",
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-      "position_frames": 59265
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
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-  ],
-  "background_events": [
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "2391"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038553.json b/conversations/conv_038553.json
deleted file mode 100644
index 5750d2a1650961b9d7620b40460a10fd13b1313a..0000000000000000000000000000000000000000
--- a/conversations/conv_038553.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "460",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172357.flac |",
-      "real_speaker_id": "460",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 164350
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_038558.json b/conversations/conv_038558.json
deleted file mode 100644
index 0d84cbe1bd253c1e8ea8f869563364a2010feb0b..0000000000000000000000000000000000000000
--- a/conversations/conv_038558.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1992-141719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.704040082499332,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39615.flac |",
-      "real_speaker_id": "4549",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 87227
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39615.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 111767
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1992-141719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
-      "real_speaker_id": "1992",
-      "position_frames": 155428
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.045487343821996,
-      "end_time": 32.0,
-      "duration": 1.9545126561780037,
-      "start_frame": 480727,
-      "duration_frames": 31272,
-      "overlap": false,
-      "utterance_id": "4549-39620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
-      "real_speaker_id": "4549",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
-      "duration": 11.939125567454303,
-      "start_time": 19.314816781484744
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
-      "duration": 1.504068501809929,
-      "start_time": 4.950634408873466
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4549/cough/0086.wav",
-      "duration": 1.4802541762999946,
-      "start_time": 12.793837564747298,
-      "speaker_id": "4549"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4549/laugh/0029.wav",
-      "duration": 1.32,
-      "start_time": 23.944987527337833,
-      "speaker_id": "4549"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1992/laugh/0034.wav",
-      "duration": 0.5526043856881115,
-      "start_time": 29.691439218532928,
-      "speaker_id": "1992"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038562.json b/conversations/conv_038562.json
deleted file mode 100644
index 2a50ec189c99b0b2972e2f466bcdf5ebaac1e2de..0000000000000000000000000000000000000000
--- a/conversations/conv_038562.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.832532375178944,
-      "duration": 5.832532375178944,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.199435079996146,
-      "end_time": 11.829680798590243,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-14358.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.95790324253604,
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-      "start_frame": 207326,
-      "duration_frames": 83735,
-      "overlap": false,
-      "utterance_id": "3168-173565",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173565.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.41985836069542,
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-      "utterance_id": "3983-5331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.633722258680624,
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-      "overlap": true,
-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 93320
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.144713459168898,
-      "end_time": 32.0,
-      "duration": 1.8552865408311021,
-      "start_frame": 482315,
-      "duration_frames": 29684,
-      "overlap": false,
-      "utterance_id": "1401-146770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-146770.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
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-      "start_time": 2.4187359116728904,
-      "speaker_id": "3168"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1401/laugh/0014.wav",
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-      "start_time": 9.037870062265878,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3168/laugh/0000.wav",
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-      "speaker_id": "3168"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038565.json b/conversations/conv_038565.json
deleted file mode 100644
index d61ff2747f24a1e0213a586ab11fc08da3f33d17..0000000000000000000000000000000000000000
--- a/conversations/conv_038565.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.614218894926264,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "8008-271817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271817.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.380435773653607,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6557.flac |",
-      "real_speaker_id": "3927",
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-      "utterance_id": "8008-271817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271817.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 94431
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.559406735333273,
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-      "duration_frames": 48836,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6557.flac |",
-      "real_speaker_id": "3927",
-      "position_frames": 66859
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-    {
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-      "utterance_id": "8644-262284",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3927-6557",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6557.flac |",
-      "real_speaker_id": "3927",
-      "position_frames": 115695
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8008/laugh/0119.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3927/laugh/0051.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8644/laugh/0067.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3927/laugh/0116.wav",
-      "duration": 0.84,
-      "start_time": 31.16,
-      "speaker_id": "3927"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038569.json b/conversations/conv_038569.json
deleted file mode 100644
index c0a31a41a14bb2ddd0f655461d9ae9eeb74941a5..0000000000000000000000000000000000000000
--- a/conversations/conv_038569.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2919-7269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7269.flac |",
-      "real_speaker_id": "2919",
-      "position_frames": 0
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-    {
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-      "start_time": 3.921481840462937,
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-      "utterance_id": "594-127732",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 27.153325973102643,
-      "speaker_id": "594"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5723/laugh/0071.wav",
-      "duration": 1.2,
-      "start_time": 29.449590418496797,
-      "speaker_id": "5723"
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-    {
-      "event_class": "cough",
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-      "duration": 0.45046358779959084,
-      "start_time": 28.596889831552723,
-      "speaker_id": "5723"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038572.json b/conversations/conv_038572.json
deleted file mode 100644
index e5f261f93c8a910c3b9494a2af6c05075e1dda02..0000000000000000000000000000000000000000
--- a/conversations/conv_038572.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.513275248819384,
-      "duration": 6.513275248819384,
-      "start_frame": 0,
-      "duration_frames": 104212,
-      "overlap": false,
-      "utterance_id": "4930-20048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20048.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.775928582808072,
-      "end_time": 11.125271388405109,
-      "duration": 4.349342805597036,
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-      "duration_frames": 69589,
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-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.728350085335311,
-      "end_time": 15.32575108707298,
-      "duration": 4.597401001737669,
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-      "duration_frames": 73558,
-      "overlap": true,
-      "utterance_id": "4930-20048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20048.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 104212
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.631161794688126,
-      "end_time": 22.844702961828315,
-      "duration": 6.21354116714019,
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-      "duration_frames": 99416,
-      "overlap": false,
-      "utterance_id": "2628-153958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153958.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.663080102166326,
-      "end_time": 28.06135540057119,
-      "duration": 5.398275298404864,
-      "start_frame": 362609,
-      "duration_frames": 86372,
-      "overlap": true,
-      "utterance_id": "2628-153964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153964.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.084916212520387,
-      "end_time": 32.0,
-      "duration": 2.915083787479613,
-      "start_frame": 465358,
-      "duration_frames": 46641,
-      "overlap": false,
-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_2.wav",
-      "duration": 0.3626530612244898,
-      "start_time": 19.961010810423254
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
-      "duration": 0.4758730158730159,
-      "start_time": 18.51550136558799
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4930/laugh/0074.wav",
-      "duration": 0.7532464118642626,
-      "start_time": 10.853017515633946,
-      "speaker_id": "4930"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2628/laugh/0114.wav",
-      "duration": 1.06,
-      "start_time": 24.633759324782726,
-      "speaker_id": "2628"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4088/laugh/0004.wav",
-      "duration": 0.6621025527817301,
-      "start_time": 28.211109989434256,
-      "speaker_id": "4088"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4088/cough/0116.wav",
-      "duration": 0.8497748458637435,
-      "start_time": 28.173908699316385,
-      "speaker_id": "4088"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038573.json b/conversations/conv_038573.json
deleted file mode 100644
index 4f934e5c245bed787561dcaca2b609b8ac70dec2..0000000000000000000000000000000000000000
--- a/conversations/conv_038573.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.677261221560645,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.172156534177656,
-      "duration": 4.172156534177656,
-      "start_frame": 0,
-      "duration_frames": 66754,
-      "overlap": false,
-      "utterance_id": "8545-273050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.7977808156225885,
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-      "duration": 5.599998411497116,
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-      "overlap": false,
-      "utterance_id": "8742-245707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245707.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.482202144674087,
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-      "overlap": false,
-      "utterance_id": "1222-141174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-141174.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.620455693729827,
-      "end_time": 19.82387138746766,
-      "duration": 3.2034156937378304,
-      "start_frame": 265927,
-      "duration_frames": 51254,
-      "overlap": false,
-      "utterance_id": "8742-245708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245708.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.06631200634176,
-      "end_time": 25.198420808952505,
-      "duration": 5.132108802610744,
-      "start_frame": 321060,
-      "duration_frames": 82113,
-      "overlap": false,
-      "utterance_id": "1222-133834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.33740516988495,
-      "end_time": 29.925866761326212,
-      "duration": 4.5884615914412645,
-      "start_frame": 405398,
-      "duration_frames": 73415,
-      "overlap": true,
-      "utterance_id": "8545-273050",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-273050.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 66754
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.051339090541365,
-      "end_time": 31.677261221560645,
-      "duration": 1.62592213101928,
-      "start_frame": 480821,
-      "duration_frames": 26014,
-      "overlap": true,
-      "utterance_id": "8545-287671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8545-287671.flac |",
-      "real_speaker_id": "8545",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-      "start_time": 14.51385821513154
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8742/laugh/0128.wav",
-      "duration": 1.2,
-      "start_time": 10.479360541936801,
-      "speaker_id": "8742"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8742/cough/0004.wav",
-      "duration": 0.8633238881876839,
-      "start_time": 5.278115927944798,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1222/cough/0070.wav",
-      "duration": 0.6118863238931855,
-      "start_time": 10.812637295105684,
-      "speaker_id": "1222"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038586.json b/conversations/conv_038586.json
deleted file mode 100644
index db12e41bb37917506af2ff21061d7534313f9d45..0000000000000000000000000000000000000000
--- a/conversations/conv_038586.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.9392046274665,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.6944954311863,
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-      "utterance_id": "1132-145024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-145024.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.836675412287448,
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-      "duration_frames": 88698,
-      "overlap": false,
-      "utterance_id": "1261-127742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-127742.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.27866720117597,
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-      "start_frame": 324458,
-      "duration_frames": 90292,
-      "overlap": false,
-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 110371
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.025867990205512,
-      "end_time": 30.9392046274665,
-      "duration": 4.9133366372609855,
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-      "duration_frames": 78613,
-      "overlap": false,
-      "utterance_id": "1261-127742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-127742.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 88698
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_0.wav",
-      "duration": 1.6445876016666023,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4019/laugh/0074.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4019/cough/0082.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1261/laugh/0032.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "1261"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038590.json b/conversations/conv_038590.json
deleted file mode 100644
index 9a86eedc1b7bdbcd3a1a161a19b426a9ad40d71d..0000000000000000000000000000000000000000
--- a/conversations/conv_038590.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.678527031127423,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "242-122627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2988-173558",
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-      "real_speaker_id": "2988",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "242-122626",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122626.flac |",
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-    {
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-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.824959000679094,
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-      "utterance_id": "2988-7587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-7587.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-      "utterance_id": "242-126842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-126842.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
-      "duration": 2.686998720530086,
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/242/cough/0049.wav",
-      "duration": 1.1716285469620369,
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-      "event_class": "cough",
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-      "duration": 1.0201440155307484,
-      "start_time": 14.269162065648938,
-      "speaker_id": "2988"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038601.json b/conversations/conv_038601.json
deleted file mode 100644
index a4c3b8194643fbc8294dd32a6a710b6cac4639aa..0000000000000000000000000000000000000000
--- a/conversations/conv_038601.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.6252557718174945,
-      "duration": 5.6252557718174945,
-      "start_frame": 0,
-      "duration_frames": 90004,
-      "overlap": false,
-      "utterance_id": "844-135042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-135042.flac |",
-      "real_speaker_id": "844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.744515477934282,
-      "end_time": 12.25474851239557,
-      "duration": 6.510233034461288,
-      "start_frame": 91912,
-      "duration_frames": 104163,
-      "overlap": true,
-      "utterance_id": "3843-176666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.889915853039307,
-      "end_time": 19.631384463017916,
-      "duration": 5.741468609978611,
-      "start_frame": 222238,
-      "duration_frames": 91863,
-      "overlap": false,
-      "utterance_id": "851-131029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/851-131029.flac |",
-      "real_speaker_id": "851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.19587082520964,
-      "end_time": 26.44089459334001,
-      "duration": 6.245023768130371,
-      "start_frame": 323133,
-      "duration_frames": 99920,
-      "overlap": false,
-      "utterance_id": "844-133697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-133697.flac |",
-      "real_speaker_id": "844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.81572331580177,
-      "end_time": 32.0,
-      "duration": 4.184276684198231,
-      "start_frame": 445051,
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-      "overlap": false,
-      "utterance_id": "3843-176666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
-      "real_speaker_id": "3843",
-      "position_frames": 104163
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 13.107623149773541
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
-      "duration": 2.6844897959183673,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/844/cough/0044.wav",
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-      "start_time": 19.36629501540992,
-      "speaker_id": "844"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038617.json b/conversations/conv_038617.json
deleted file mode 100644
index 7000821dccae67ad6dc0dd16fe29b19c1258e2ef..0000000000000000000000000000000000000000
--- a/conversations/conv_038617.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.573131098699869,
-      "duration": 3.573131098699869,
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-      "overlap": false,
-      "utterance_id": "3063-138651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8520147142305428,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-35690.flac |",
-      "real_speaker_id": "5750",
-      "position_frames": 0
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-    {
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-      "utterance_id": "3063-138651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 57170
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.939565002086695,
-      "end_time": 21.639949814462675,
-      "duration": 4.700384812375979,
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-      "utterance_id": "7892-295954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7892-295954.flac |",
-      "real_speaker_id": "7892",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.30777070996237,
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-      "overlap": false,
-      "utterance_id": "3063-138651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 151307
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.442128598387868,
-      "end_time": 32.0,
-      "duration": 3.5578714016121324,
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-      "duration_frames": 56925,
-      "overlap": false,
-      "utterance_id": "5750-35690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-35690.flac |",
-      "real_speaker_id": "5750",
-      "position_frames": 84317
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038621.json b/conversations/conv_038621.json
deleted file mode 100644
index 52590e8c2d0f9c03ab183658e68da362ecc695d7..0000000000000000000000000000000000000000
--- a/conversations/conv_038621.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.105643571700455,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "887-123289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123289.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123290.flac |",
-      "real_speaker_id": "887",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5266-41151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.584434098421728,
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-      "utterance_id": "887-123290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123290.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 89852
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.604273009902414,
-      "end_time": 28.021091738269842,
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-      "utterance_id": "294-129973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-129973.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 27.603892804719365,
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-      "utterance_id": "887-123291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123291.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/887/laugh/0040.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038626.json b/conversations/conv_038626.json
deleted file mode 100644
index 9eee753ebb29af7f45b8ca3f80797e024bd5f8ae..0000000000000000000000000000000000000000
--- a/conversations/conv_038626.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.2748939710477245,
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-      "start_frame": 0,
-      "duration_frames": 100398,
-      "overlap": false,
-      "utterance_id": "8367-279367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279367.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.045349546025525,
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-      "overlap": false,
-      "utterance_id": "2967-4901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4901.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "2504-154289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2504-154289.flac |",
-      "real_speaker_id": "2504",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "position_frames": 100398
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2504-154288",
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-  "foreground_events": [
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-      "duration": 1.09638321701824,
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-      "speaker_id": "8367"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2967/laugh/0084.wav",
-      "duration": 1.4,
-      "start_time": 13.56091105953755,
-      "speaker_id": "2967"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2504/cough/0066.wav",
-      "duration": 0.7620155280294423,
-      "start_time": 13.454544416269576,
-      "speaker_id": "2504"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8367/laugh/0059.wav",
-      "duration": 0.5258113474069193,
-      "start_time": 23.453489996300256,
-      "speaker_id": "8367"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038630.json b/conversations/conv_038630.json
deleted file mode 100644
index 460a9bd9ae9d0cedccc56c7423ec751be074c90a..0000000000000000000000000000000000000000
--- a/conversations/conv_038630.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.56566729943995,
-      "duration": 5.56566729943995,
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-      "duration_frames": 89050,
-      "overlap": false,
-      "utterance_id": "7794-295947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295947.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.014679096917501,
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-      "utterance_id": "7783-107486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107486.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.515870558390542,
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-      "overlap": true,
-      "utterance_id": "7794-295955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295955.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.28249496878049,
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-      "duration": 3.6617349582403644,
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-      "utterance_id": "7783-107487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107487.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.74418709267018,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-78193.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.297678550040366,
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-      "utterance_id": "7783-107486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107486.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 92548
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
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-      "event_class": "Dishes",
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-      "start_time": 7.860316952807229
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_038637.json b/conversations/conv_038637.json
deleted file mode 100644
index 9795c9215ce34ebb1fa6f879901b22d6a4f4ea80..0000000000000000000000000000000000000000
--- a/conversations/conv_038637.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.800022952406522,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141082.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141082.flac |",
-      "real_speaker_id": "1569",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61742.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6506-73020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-73020.flac |",
-      "real_speaker_id": "6506",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_038640.json b/conversations/conv_038640.json
deleted file mode 100644
index 338bb4b0bba72110c58d1fbf70f2af178bcae91d..0000000000000000000000000000000000000000
--- a/conversations/conv_038640.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2660-173229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-173229.flac |",
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-    {
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-      "real_speaker_id": "2895",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_038656.json b/conversations/conv_038656.json
deleted file mode 100644
index 00a6c817ac202e10eef6da99e47b36e495315f67..0000000000000000000000000000000000000000
--- a/conversations/conv_038656.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "duration": 0.35390037610312935,
-      "start_time": 30.237559112366622,
-      "speaker_id": "2061"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7762/laugh/0029.wav",
-      "duration": 0.951342695969434,
-      "start_time": 29.892518617516203,
-      "speaker_id": "7762"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038660.json b/conversations/conv_038660.json
deleted file mode 100644
index 0a687fd22fce6794f72093da41d6a6fec077cbdd..0000000000000000000000000000000000000000
--- a/conversations/conv_038660.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.6618844374522665,
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-      "duration_frames": 58590,
-      "overlap": false,
-      "utterance_id": "2673-162129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-162129.flac |",
-      "real_speaker_id": "2673",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.320165235556088,
-      "end_time": 6.618075104023513,
-      "duration": 3.2979098684674244,
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-      "utterance_id": "1552-141135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-141135.flac |",
-      "real_speaker_id": "1552",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 7.86900592642074,
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-      "utterance_id": "6346-60781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6346-60781.flac |",
-      "real_speaker_id": "6346",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.14725836525625,
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-      "utterance_id": "1552-140656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-140656.flac |",
-      "real_speaker_id": "1552",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.430900127209135,
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-      "overlap": false,
-      "utterance_id": "2673-156474",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-156474.flac |",
-      "real_speaker_id": "2673",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.744299688763512,
-      "end_time": 30.85691301379277,
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-      "duration_frames": 65801,
-      "overlap": false,
-      "utterance_id": "6346-60781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6346-60781.flac |",
-      "real_speaker_id": "6346",
-      "position_frames": 107562
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.412562178257254,
-      "end_time": 32.0,
-      "duration": 0.5874378217427463,
-      "start_frame": 502600,
-      "duration_frames": 9399,
-      "overlap": false,
-      "utterance_id": "2673-156474",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-156474.flac |",
-      "real_speaker_id": "2673",
-      "position_frames": 61201
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
-      "duration": 4.743184711610102,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1552/cough/0060.wav",
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-    {
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-      "duration": 0.7729961079666727,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2673/cough/0076.wav",
-      "duration": 0.3219844028869004,
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-    {
-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 30.06203512043352,
-      "speaker_id": "2673"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038667.json b/conversations/conv_038667.json
deleted file mode 100644
index c891467a2b4d1b6d877d696653ecd9f372e31ee4..0000000000000000000000000000000000000000
--- a/conversations/conv_038667.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.33079654267902,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.252923004455058,
-      "duration": 5.252923004455058,
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-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.850537309405511,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2476.flac |",
-      "real_speaker_id": "2436",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.233054382413332,
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-      "overlap": false,
-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.925963641041623,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 84046
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.0628437547496,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 142836
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.37379671593019,
-      "end_time": 31.33079654267902,
-      "duration": 2.956999826748831,
-      "start_frame": 453980,
-      "duration_frames": 47311,
-      "overlap": true,
-      "utterance_id": "2436-2481",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2481.flac |",
-      "real_speaker_id": "2436",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
-      "duration": 0.24482993197278913,
-      "start_time": 23.465608833156946
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2724/laugh/0063.wav",
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-      "start_time": 17.377322831725277,
-      "speaker_id": "2724"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5459/laugh/0081.wav",
-      "duration": 1.04,
-      "start_time": 21.789171820093532,
-      "speaker_id": "5459"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5459/laugh/0043.wav",
-      "duration": 1.2,
-      "start_time": 28.445238047318664,
-      "speaker_id": "5459"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5459/cough/0059.wav",
-      "duration": 0.5258041776544672,
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-      "speaker_id": "5459"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "2436"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038671.json b/conversations/conv_038671.json
deleted file mode 100644
index 54cb42cfdf014e7c907b568b35bac6c1222db84d..0000000000000000000000000000000000000000
--- a/conversations/conv_038671.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3656-168609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168609.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
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-    },
-    {
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-      "overlap": true,
-      "utterance_id": "3656-168648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168648.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.765876382667113,
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-      "utterance_id": "27-123349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 103916
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.46185957072501,
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-      "utterance_id": "3656-168609",
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-      "real_speaker_id": "3656",
-      "position_frames": 86255
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.48111335300813,
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-      "duration": 3.51888664699187,
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-      "utterance_id": "27-123349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 181360
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/27/cough/0052.wav",
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3656/cough/0006.wav",
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-      "speaker_id": "3656"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038676.json b/conversations/conv_038676.json
deleted file mode 100644
index 53fce05841eee6e79f20e265160c4cff2c77bcc2..0000000000000000000000000000000000000000
--- a/conversations/conv_038676.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.629519607110257,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.4665753604202765,
-      "duration": 4.4665753604202765,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3440-171006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.193953903437195,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-44937.flac |",
-      "real_speaker_id": "4358",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3440-171006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 71465
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "speaker_id": "8087"
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\ No newline at end of file
diff --git a/conversations/conv_038683.json b/conversations/conv_038683.json
deleted file mode 100644
index 53a3c6c09ffa8915993c8c528b8ec6127e419e9f..0000000000000000000000000000000000000000
--- a/conversations/conv_038683.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.76812303466199,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
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-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.770612852135056,
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-      "utterance_id": "2517-135227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135227.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144391.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 71606
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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\ No newline at end of file
diff --git a/conversations/conv_038688.json b/conversations/conv_038688.json
deleted file mode 100644
index fa548bdd47888f4fa3d662f3e84ce8d657e3f518..0000000000000000000000000000000000000000
--- a/conversations/conv_038688.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
-      "real_speaker_id": "716",
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-      "utterance_id": "1571-141320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-141320.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 161337
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038695.json b/conversations/conv_038695.json
deleted file mode 100644
index 9bf3a38d94971ddd8f6ff0650fc498eba7b30954..0000000000000000000000000000000000000000
--- a/conversations/conv_038695.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.582959491315407,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1992-141719.flac |",
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-      "real_speaker_id": "696",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038699.json b/conversations/conv_038699.json
deleted file mode 100644
index c557f9a4ddbf50b4e29233e9db0f37e0513649c1..0000000000000000000000000000000000000000
--- a/conversations/conv_038699.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "real_speaker_id": "2943",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 80786
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "speaker_id": "5514"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038705.json b/conversations/conv_038705.json
deleted file mode 100644
index 37929117f9d12186189ed8fc28f7104e5ae505cc..0000000000000000000000000000000000000000
--- a/conversations/conv_038705.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.725248400748193,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/644-162691.flac |",
-      "real_speaker_id": "644",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.711397760236288,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132015.flac |",
-      "real_speaker_id": "404",
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-      "real_speaker_id": "644",
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-      "utterance_id": "404-132013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132013.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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\ No newline at end of file
diff --git a/conversations/conv_038709.json b/conversations/conv_038709.json
deleted file mode 100644
index 63a70326c29c62fc39ee76ad066fc54bb2a67f9d..0000000000000000000000000000000000000000
--- a/conversations/conv_038709.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "speaker_id": 2,
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-      "real_speaker_id": "6064",
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-      "real_speaker_id": "1629",
-      "position_frames": 76516
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_038712.json b/conversations/conv_038712.json
deleted file mode 100644
index d5ad769f79d3783449de77360eabbc12545d0c43..0000000000000000000000000000000000000000
--- a/conversations/conv_038712.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-      "segment_id": "seg0006",
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-      "speaker_id": "8087"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2062/laugh/0137.wav",
-      "duration": 1.44,
-      "start_time": 26.520708727724184,
-      "speaker_id": "2062"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038713.json b/conversations/conv_038713.json
deleted file mode 100644
index d677358c6c8fd0d9a6592f95157ee92426fec2d6..0000000000000000000000000000000000000000
--- a/conversations/conv_038713.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.497912762849772,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.104668128008564,
-      "duration": 5.104668128008564,
-      "start_frame": 0,
-      "duration_frames": 81674,
-      "overlap": false,
-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.211859982338692,
-      "end_time": 11.351492525199873,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164323.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.97870629621122,
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-      "duration_frames": 52224,
-      "overlap": false,
-      "utterance_id": "1870-164330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164330.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.09274614492781,
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-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.12965504539582,
-      "end_time": 27.812377255198385,
-      "duration": 4.682722209802568,
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-      "utterance_id": "1870-164323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1870-164323.flac |",
-      "real_speaker_id": "1870",
-      "position_frames": 98234
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.330722597980206,
-      "end_time": 31.497912762849772,
-      "duration": 3.1671901648695666,
-      "start_frame": 453291,
-      "duration_frames": 50675,
-      "overlap": true,
-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 81674
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_12.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4088/laugh/0069.wav",
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-      "start_time": 15.002872921463952,
-      "speaker_id": "4088"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1870/laugh/0033.wav",
-      "duration": 1.3764450307717977,
-      "start_time": 27.871957822031355,
-      "speaker_id": "1870"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4088/laugh/0080.wav",
-      "duration": 0.5883128256633385,
-      "start_time": 28.952297133763725,
-      "speaker_id": "4088"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038722.json b/conversations/conv_038722.json
deleted file mode 100644
index 236543e22ad80d29b227d765f6ea03ce42afad15..0000000000000000000000000000000000000000
--- a/conversations/conv_038722.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4406-16883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16883.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.405382026078666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
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-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.346417732866218,
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-      "utterance_id": "925-8140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/925-8140.flac |",
-      "real_speaker_id": "925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.31473877811901,
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-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 78709
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.14012290956215,
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-      "duration": 4.518206411555316,
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-      "duration_frames": 72291,
-      "overlap": false,
-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 59136
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.155763626413986,
-      "end_time": 32.0,
-      "duration": 0.8442363735860141,
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-      "duration_frames": 13507,
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-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
-      "position_frames": 134321
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "start_time": 23.051530382118095
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
-      "duration": 0.6519047619047619,
-      "start_time": 12.897786978142038
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/laugh/0079.wav",
-      "duration": 1.02,
-      "start_time": 30.98,
-      "speaker_id": "2676"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038725.json b/conversations/conv_038725.json
deleted file mode 100644
index 5fdd1fcf72b82916972a60d7050e2d0d9698aa73..0000000000000000000000000000000000000000
--- a/conversations/conv_038725.json
+++ /dev/null
@@ -1,186 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6660-97655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-97655.flac |",
-      "real_speaker_id": "6660",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
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-      "utterance_id": "6574-70753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-70753.flac |",
-      "real_speaker_id": "6574",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-97655.flac |",
-      "real_speaker_id": "6660",
-      "position_frames": 76917
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2204-131732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
-      "real_speaker_id": "2204",
-      "position_frames": 55480
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.385029449907385,
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-      "duration": 3.6149705500926146,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-70753.flac |",
-      "real_speaker_id": "6574",
-      "position_frames": 69071
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "6660"
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6660/laugh/0027.wav",
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-      "speaker_id": "6574"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038729.json b/conversations/conv_038729.json
deleted file mode 100644
index e932a83371038cf2340b566bf538c6904583a682..0000000000000000000000000000000000000000
--- a/conversations/conv_038729.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6402-105213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105213.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1647",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-140649.flac |",
-      "real_speaker_id": "1647",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105213.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 63840
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-      "event_class": "Blender",
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-      "speaker_id": "4104"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038733.json b/conversations/conv_038733.json
deleted file mode 100644
index fedd6ee62c4739a36ec7bf26d2455c3ed78e4557..0000000000000000000000000000000000000000
--- a/conversations/conv_038733.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7188-104637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-104637.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.743839622937485,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-149738.flac |",
-      "real_speaker_id": "1961",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-104637.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 85876
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 71524
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.567585877154027,
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-      "utterance_id": "1961-145733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-145733.flac |",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-      "speaker_id": "1961"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038734.json b/conversations/conv_038734.json
deleted file mode 100644
index 257ec8f2f0726b959d718ada361be1a01cef9b30..0000000000000000000000000000000000000000
--- a/conversations/conv_038734.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 130782
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3334-171008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 81241
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 237211
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4042/laugh/0136.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4042/laugh/0080.wav",
-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "4042"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038744.json b/conversations/conv_038744.json
deleted file mode 100644
index 838bb128ea5aac7a9bb8677100ae57d21df761e2..0000000000000000000000000000000000000000
--- a/conversations/conv_038744.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.96157230044959,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1603-139324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139324.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-129236.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1603",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7702-96101.flac |",
-      "real_speaker_id": "7702",
-      "position_frames": 103520
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7702-292568",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "7702"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038748.json b/conversations/conv_038748.json
deleted file mode 100644
index f1c054c895be0163cf6e14e56c9ea65bb74aec91..0000000000000000000000000000000000000000
--- a/conversations/conv_038748.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-160958.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.129255295977543,
-      "end_time": 32.0,
-      "duration": 4.8707447040224565,
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-      "utterance_id": "2775-161226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-161226.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 67196
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2289/laugh/0038.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038749.json b/conversations/conv_038749.json
deleted file mode 100644
index 3e01d16332853b110b51c68a20e1fddd4020773d..0000000000000000000000000000000000000000
--- a/conversations/conv_038749.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4225-144132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.66975069730818,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-271826.flac |",
-      "real_speaker_id": "8057",
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-      "real_speaker_id": "4225",
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-      "speaker_id": 1,
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-      "utterance_id": "8057-284428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-284428.flac |",
-      "real_speaker_id": "8057",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "3185-163507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163507.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038752.json b/conversations/conv_038752.json
deleted file mode 100644
index 0d45c6cece809f732e73156471e295bbfb2ef567..0000000000000000000000000000000000000000
--- a/conversations/conv_038752.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6509-76574",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121771.flac |",
-      "real_speaker_id": "1274",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 27.892989802348456,
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-      "duration": 4.107010197651544,
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-      "utterance_id": "6752-74796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74796.flac |",
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-      "position_frames": 148850
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_16.wav",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038763.json b/conversations/conv_038763.json
deleted file mode 100644
index b0e530fdf63ad8e886c4d7a32099380a0460152b..0000000000000000000000000000000000000000
--- a/conversations/conv_038763.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "5233-28389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28389.flac |",
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-    {
-      "segment_id": "seg0003",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.9447845804988662,
-      "start_time": 22.281100774294817
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2724/laugh/0069.wav",
-      "duration": 1.8780500481736042,
-      "start_time": 0,
-      "speaker_id": "2724"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8424/cough/0005.wav",
-      "duration": 1.2354924024889828,
-      "start_time": 3.7885061130791478,
-      "speaker_id": "8424"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5233/cough/0072.wav",
-      "duration": 0.6096422358369502,
-      "start_time": 9.06417210406572,
-      "speaker_id": "5233"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038764.json b/conversations/conv_038764.json
deleted file mode 100644
index 4e29e64b7a3130423d89343c6e1d1d9b5ece4275..0000000000000000000000000000000000000000
--- a/conversations/conv_038764.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.62325708670887,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.510619720699164,
-      "duration": 4.510619720699164,
-      "start_frame": 0,
-      "duration_frames": 72169,
-      "overlap": false,
-      "utterance_id": "3871-693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-693.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.805960930038496,
-      "end_time": 10.350457178677628,
-      "duration": 5.544496248639132,
-      "start_frame": 76895,
-      "duration_frames": 88711,
-      "overlap": false,
-      "utterance_id": "5304-55856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-55856.flac |",
-      "real_speaker_id": "5304",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.816096694981658,
-      "end_time": 13.945158366010135,
-      "duration": 3.1290616710284773,
-      "start_frame": 173057,
-      "duration_frames": 50064,
-      "overlap": false,
-      "utterance_id": "3871-692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.803654787158981,
-      "end_time": 18.96433448614676,
-      "duration": 4.160679698987778,
-      "start_frame": 236858,
-      "duration_frames": 66570,
-      "overlap": false,
-      "utterance_id": "7732-107517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
-      "real_speaker_id": "7732",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.795656210919493,
-      "end_time": 25.237201319930524,
-      "duration": 5.441545109011032,
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-      "duration_frames": 87064,
-      "overlap": false,
-      "utterance_id": "5304-55856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-55856.flac |",
-      "real_speaker_id": "5304",
-      "position_frames": 88711
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.893046869665582,
-      "end_time": 30.124075463682047,
-      "duration": 4.231028594016465,
-      "start_frame": 414288,
-      "duration_frames": 67696,
-      "overlap": false,
-      "utterance_id": "7732-107520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107520.flac |",
-      "real_speaker_id": "7732",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.47386035996104,
-      "end_time": 31.62325708670887,
-      "duration": 1.1493967267478276,
-      "start_frame": 487581,
-      "duration_frames": 18390,
-      "overlap": true,
-      "utterance_id": "5304-109507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-109507.flac |",
-      "real_speaker_id": "5304",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
-      "duration": 2.816253003387576,
-      "start_time": 24.090217705582887
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5304/laugh/0071.wav",
-      "duration": 1.081240168454417,
-      "start_time": 8.197721098029643,
-      "speaker_id": "5304"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3871/laugh/0038.wav",
-      "duration": 1.52,
-      "start_time": 12.219308910092073,
-      "speaker_id": "3871"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3871/cough/0015.wav",
-      "duration": 0.8955532716958605,
-      "start_time": 14.113338062546795,
-      "speaker_id": "3871"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7732/cough/0001.wav",
-      "duration": 1.32,
-      "start_time": 13.323100820946863,
-      "speaker_id": "7732"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038768.json b/conversations/conv_038768.json
deleted file mode 100644
index 1d1f40a7c7a85d12c4801ee7764d27a70b40a4a3..0000000000000000000000000000000000000000
--- a/conversations/conv_038768.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.002001620927604,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5649-40561",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40561.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.5317599820719545,
-      "end_time": 12.113695679342527,
-      "duration": 6.581935697270573,
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-      "utterance_id": "5874-52159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52159.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.854617563756946,
-      "end_time": 16.669612568225062,
-      "duration": 3.814995004468117,
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-      "duration_frames": 61039,
-      "overlap": false,
-      "utterance_id": "5649-40563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40563.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.951980972289503,
-      "end_time": 21.167428911540473,
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-      "overlap": true,
-      "utterance_id": "331-135126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-135126.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.733263983833297,
-      "end_time": 26.275135831642586,
-      "duration": 3.5418718478092917,
-      "start_frame": 363732,
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-      "overlap": false,
-      "utterance_id": "331-884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-884.flac |",
-      "real_speaker_id": "331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.48064852026119,
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-      "duration": 5.519351479738809,
-      "start_frame": 423690,
-      "duration_frames": 88309,
-      "overlap": false,
-      "utterance_id": "5874-52160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52160.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
-      "duration": 15.55204081632653,
-      "start_time": 6.826229629644584
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_3.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5649/laugh/0027.wav",
-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "5649"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5649/cough/0070.wav",
-      "duration": 0.35759011701315035,
-      "start_time": 0,
-      "speaker_id": "5649"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5874/laugh/0001.wav",
-      "duration": 1.48,
-      "start_time": 3.849751312374875,
-      "speaker_id": "5874"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5649/laugh/0010.wav",
-      "duration": 0.7857304697761338,
-      "start_time": 16.725876472969784,
-      "speaker_id": "5649"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/331/laugh/0036.wav",
-      "duration": 0.7896424188745879,
-      "start_time": 18.661550224958095,
-      "speaker_id": "331"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5874/laugh/0023.wav",
-      "duration": 1.44,
-      "start_time": 28.433968944026685,
-      "speaker_id": "5874"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038772.json b/conversations/conv_038772.json
deleted file mode 100644
index fc6e822d1cf233b224be9003e0b07998f711689d..0000000000000000000000000000000000000000
--- a/conversations/conv_038772.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.850051170853278,
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-      "overlap": false,
-      "utterance_id": "52-121057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.267190663718473,
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-      "overlap": false,
-      "utterance_id": "3679-159363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
-      "real_speaker_id": "3679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.239340064964416,
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-      "duration": 3.312923781158694,
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-      "duration_frames": 53006,
-      "overlap": false,
-      "utterance_id": "52-121057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 109600
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.039719693513504,
-      "end_time": 24.937888401003725,
-      "duration": 6.898168707490222,
-      "start_frame": 288635,
-      "duration_frames": 110370,
-      "overlap": false,
-      "utterance_id": "3679-159363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
-      "real_speaker_id": "3679",
-      "position_frames": 102681
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.539433028190313,
-      "end_time": 30.22465551624301,
-      "duration": 4.685222488052699,
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-      "overlap": false,
-      "utterance_id": "52-123202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-123202.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.443103008084247,
-      "end_time": 32.0,
-      "duration": 1.5568969919157531,
-      "start_frame": 487089,
-      "duration_frames": 24910,
-      "overlap": false,
-      "utterance_id": "3679-159363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159363.flac |",
-      "real_speaker_id": "3679",
-      "position_frames": 213051
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "start_time": 15.404388693560088
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-      "start_time": 4.6146363172871165
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/52/laugh/0020.wav",
-      "duration": 1.1866361606127271,
-      "start_time": 5.613857954733664,
-      "speaker_id": "52"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/52/laugh/0013.wav",
-      "duration": 1.0,
-      "start_time": 17.672510778786542,
-      "speaker_id": "52"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/52/cough/0040.wav",
-      "duration": 1.157782765461854,
-      "start_time": 13.027962811507958,
-      "speaker_id": "52"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3679/cough/0094.wav",
-      "duration": 0.9140167416891716,
-      "start_time": 21.528572502205726,
-      "speaker_id": "3679"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/52/laugh/0037.wav",
-      "duration": 1.12,
-      "start_time": 27.278148110651195,
-      "speaker_id": "52"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3679/laugh/0061.wav",
-      "duration": 1.04,
-      "start_time": 30.665608352830667,
-      "speaker_id": "3679"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038775.json b/conversations/conv_038775.json
deleted file mode 100644
index 8b3edcc0a08d0025e64b401c3192de4fd045d432..0000000000000000000000000000000000000000
--- a/conversations/conv_038775.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "3319-171003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-171003.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.884043961127341,
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.429918384921436,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 165917
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-      "speaker_id": "4766"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038787.json b/conversations/conv_038787.json
deleted file mode 100644
index 7da9217691c67f40ea2ab6b8dd42faf75bd78869..0000000000000000000000000000000000000000
--- a/conversations/conv_038787.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4742-74181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-74181.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.473941119986855,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3470-116550.flac |",
-      "real_speaker_id": "3470",
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-      "real_speaker_id": "4742",
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-      "real_speaker_id": "7000",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83696.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038791.json b/conversations/conv_038791.json
deleted file mode 100644
index d2f9185550dd792c6daa9ac95ca3a5588011d438..0000000000000000000000000000000000000000
--- a/conversations/conv_038791.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-14526.flac |",
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-      "real_speaker_id": "4915",
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 78347
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038800.json b/conversations/conv_038800.json
deleted file mode 100644
index 8b60d754d2ff8d6cc1e98cd6e2c028c551e681ce..0000000000000000000000000000000000000000
--- a/conversations/conv_038800.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8415/cough/0086.wav",
-      "duration": 0.7470636265489473,
-      "start_time": 31.252936373451053,
-      "speaker_id": "8415"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038816.json b/conversations/conv_038816.json
deleted file mode 100644
index 09c7758478c9e04e29f9a0528c0768265a8bf067..0000000000000000000000000000000000000000
--- a/conversations/conv_038816.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.524178774196701,
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-      "utterance_id": "434-132649",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132649.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.847651837213151,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86732.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.829240075621094,
-      "end_time": 16.848590377444637,
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-      "overlap": true,
-      "utterance_id": "434-132649",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132649.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 72386
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.951184016095453,
-      "end_time": 24.774611596337635,
-      "duration": 6.823427580242182,
-      "start_frame": 287218,
-      "duration_frames": 109174,
-      "overlap": false,
-      "utterance_id": "7117-86732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86732.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 97234
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.451718940547764,
-      "end_time": 29.21312249780752,
-      "duration": 3.761403557259759,
-      "start_frame": 407227,
-      "duration_frames": 60182,
-      "overlap": false,
-      "utterance_id": "5154-26559",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26559.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.602710974172805,
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-      "duration": 2.3972890258271953,
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-      "duration_frames": 38356,
-      "overlap": false,
-      "utterance_id": "434-132645",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/434-132645.flac |",
-      "real_speaker_id": "434",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Blender",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/434/laugh/0027.wav",
-      "duration": 1.48,
-      "start_time": 9.092918774920783,
-      "speaker_id": "434"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038820.json b/conversations/conv_038820.json
deleted file mode 100644
index b15fc31eaf2d025922e233d91b96017c75bf6cd6..0000000000000000000000000000000000000000
--- a/conversations/conv_038820.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.199538539666146,
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-      "utterance_id": "2301-134424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-134424.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
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-      "utterance_id": "2301-157880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157880.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.112024031057633,
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-      "duration": 6.613113372561127,
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-      "overlap": false,
-      "utterance_id": "4687-28005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-28005.flac |",
-      "real_speaker_id": "4687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.049811354596585,
-      "end_time": 29.357774278824085,
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-      "utterance_id": "2301-134424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-134424.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 83192
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.768725056906273,
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-      "duration": 2.2312749430937266,
-      "start_frame": 476299,
-      "duration_frames": 35700,
-      "overlap": false,
-      "utterance_id": "4687-28005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-28005.flac |",
-      "real_speaker_id": "4687",
-      "position_frames": 105809
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2301/cough/0073.wav",
-      "duration": 1.3529587582481843,
-      "start_time": 23.610354195095102,
-      "speaker_id": "2301"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038821.json b/conversations/conv_038821.json
deleted file mode 100644
index d8d7d6e671667de0be0491e726f16e624d6272db..0000000000000000000000000000000000000000
--- a/conversations/conv_038821.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2437-153219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2437-153219.flac |",
-      "real_speaker_id": "2437",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8758-296465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-296465.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123719.flac |",
-      "real_speaker_id": "481",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "real_speaker_id": "481",
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-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038831.json b/conversations/conv_038831.json
deleted file mode 100644
index 3340ac49aacb3ef3003802fc88a5d248e054ad3a..0000000000000000000000000000000000000000
--- a/conversations/conv_038831.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.579587448561607,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2676-143903",
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-  "foreground_events": [
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-      "start_time": 3.9630922163662916,
-      "speaker_id": "2676"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/161/laugh/0070.wav",
-      "duration": 0.6621338203220893,
-      "start_time": 6.218401083396053,
-      "speaker_id": "161"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2676/cough/0044.wav",
-      "duration": 1.1396180023447195,
-      "start_time": 12.322001773053675,
-      "speaker_id": "2676"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/224/laugh/0009.wav",
-      "duration": 0.88,
-      "start_time": 17.44128163749915,
-      "speaker_id": "224"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038836.json b/conversations/conv_038836.json
deleted file mode 100644
index ab330892d182bd3026d50de650cb995dc6aaea4e..0000000000000000000000000000000000000000
--- a/conversations/conv_038836.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.319902756252272,
-      "duration": 6.319902756252272,
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-      "overlap": false,
-      "utterance_id": "1681-142301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.923346406687702,
-      "end_time": 12.138197999897189,
-      "duration": 5.214851593209487,
-      "start_frame": 110773,
-      "duration_frames": 83437,
-      "overlap": false,
-      "utterance_id": "1681-142301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 101118
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.45557066677543,
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-      "duration_frames": 91158,
-      "overlap": false,
-      "utterance_id": "7073-83692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-83692.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.017372163463495,
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-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.562834539517382,
-      "end_time": 29.194485710108964,
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-      "utterance_id": "1681-142301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 184555
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.64750380093376,
-      "end_time": 32.0,
-      "duration": 2.352496199066241,
-      "start_frame": 474360,
-      "duration_frames": 37639,
-      "overlap": false,
-      "utterance_id": "1681-142313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142313.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.036648357266642,
-      "start_time": 21.708981974262777
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1681/laugh/0117.wav",
-      "duration": 1.2,
-      "start_time": 3.8031886981602927,
-      "speaker_id": "1681"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 0.46053412859145904,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1681/laugh/0111.wav",
-      "duration": 1.208775868517429,
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-    },
-    {
-      "event_class": "cough",
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-      "start_time": 12.332162204005089,
-      "speaker_id": "1681"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1681/laugh/0006.wav",
-      "duration": 1.0976616310283132,
-      "start_time": 25.664505750151385,
-      "speaker_id": "1681"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1681/laugh/0059.wav",
-      "duration": 1.4,
-      "start_time": 29.81201997482264,
-      "speaker_id": "1681"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038841.json b/conversations/conv_038841.json
deleted file mode 100644
index 3f3107301ba42d1b43dd5ebe06ef3fe86c9d59cb..0000000000000000000000000000000000000000
--- a/conversations/conv_038841.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.412843144651439,
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-      "duration_frames": 86605,
-      "overlap": false,
-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.88753419163681,
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-      "utterance_id": "1502-122615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122615.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "duration_frames": 60289,
-      "overlap": false,
-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 86605
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.546071027863636,
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-      "overlap": false,
-      "utterance_id": "1502-122619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122619.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.59943473880992,
-      "end_time": 26.319321275042945,
-      "duration": 4.719886536233027,
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-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 146894
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.503634252673525,
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-      "duration_frames": 59833,
-      "overlap": false,
-      "utterance_id": "1502-122619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1502-122619.flac |",
-      "real_speaker_id": "1502",
-      "position_frames": 67907
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.137545017448414,
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-      "duration": 0.8624549825515864,
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-      "duration_frames": 13799,
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-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 222412
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
-      "duration": 14.152194432990425,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "speaker_id": "1502"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.72,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1987/laugh/0063.wav",
-      "duration": 0.6954534424849765,
-      "start_time": 30.162690848378933,
-      "speaker_id": "1987"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038857.json b/conversations/conv_038857.json
deleted file mode 100644
index e7fb4e21124cd37b3899ae43278033beaeeb8f4e..0000000000000000000000000000000000000000
--- a/conversations/conv_038857.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.28564903338633,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.7087375515745755,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 62756
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-14356.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.031252058256996,
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-      "duration_frames": 55844,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 134836
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 25.139911782238094,
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-      "utterance_id": "6912-70847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.88777584879114,
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-      "duration_frames": 22365,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-14356.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 95718
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-    {
-      "event_class": "Dog",
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-      "start_time": 5.894209606543297
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_038861.json b/conversations/conv_038861.json
deleted file mode 100644
index a8e2daed159e6135e482e1ef657dfac7c128700c..0000000000000000000000000000000000000000
--- a/conversations/conv_038861.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-      "real_speaker_id": "2812",
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-      "real_speaker_id": "6037",
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "6037"
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\ No newline at end of file
diff --git a/conversations/conv_038876.json b/conversations/conv_038876.json
deleted file mode 100644
index 945a1a665e0bd7f4f2cb28fed596993b84fefa82..0000000000000000000000000000000000000000
--- a/conversations/conv_038876.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6038-56777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112593.flac |",
-      "real_speaker_id": "8006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.262963759445494,
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-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 79066
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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\ No newline at end of file
diff --git a/conversations/conv_038877.json b/conversations/conv_038877.json
deleted file mode 100644
index a72829584c56451feb340b67d9b35b16b2a46403..0000000000000000000000000000000000000000
--- a/conversations/conv_038877.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
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-      "real_speaker_id": "6145",
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-      "real_speaker_id": "6145",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.327145287863846,
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-      "utterance_id": "8005-113331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113331.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
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-    {
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-      "speaker_id": "8005"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6145/laugh/0085.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6145/laugh/0107.wav",
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-      "speaker_id": "6145"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038882.json b/conversations/conv_038882.json
deleted file mode 100644
index f27065228bcaed6536533129b0973a741e2d6ee7..0000000000000000000000000000000000000000
--- a/conversations/conv_038882.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.797628475501327,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1826-142752.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 84778
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_038894.json b/conversations/conv_038894.json
deleted file mode 100644
index cfa9f3740d4c41114ad1f97226c5ab5eaf351f90..0000000000000000000000000000000000000000
--- a/conversations/conv_038894.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "238",
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-      "real_speaker_id": "4599",
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-      "speaker_id": 1,
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-      "real_speaker_id": "4599",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.160163549716916,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 270698
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-  "background_events": [
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-      "event_class": "Running_water",
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-      "event_class": "Cat",
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-      "event_class": "laugh",
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-      "duration": 1.16,
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-      "speaker_id": "238"
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-      "event_class": "cough",
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-      "speaker_id": "4599"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038898.json b/conversations/conv_038898.json
deleted file mode 100644
index ca136f4059196b9952ada2e1f4874bfa58f6e65e..0000000000000000000000000000000000000000
--- a/conversations/conv_038898.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99338891260065,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8675-295195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-295195.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.612599180045345,
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-      "utterance_id": "8820-294120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294120.flac |",
-      "real_speaker_id": "8820",
-      "position_frames": 0
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-      "start_time": 9.392155404062613,
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-      "utterance_id": "8675-283202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-283202.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.247903490099716,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8820-294120.flac |",
-      "real_speaker_id": "8820",
-      "position_frames": 68149
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-295195.flac |",
-      "real_speaker_id": "8675",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.806586606245258,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-      "start_time": 12.99848107059423
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_038904.json b/conversations/conv_038904.json
deleted file mode 100644
index 1c9633a2fff9878528073e705673caa3f9186ef2..0000000000000000000000000000000000000000
--- a/conversations/conv_038904.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7957",
-      "position_frames": 87850
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-      "segment_id": "seg0003",
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-      "utterance_id": "3467-166572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166572.flac |",
-      "real_speaker_id": "3467",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.414397058699677,
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-      "duration_frames": 111777,
-      "overlap": true,
-      "utterance_id": "1107-134313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-134313.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 165532
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_038908.json b/conversations/conv_038908.json
deleted file mode 100644
index c7fb551c348d389adbc6abff1de8bc5412200636..0000000000000000000000000000000000000000
--- a/conversations/conv_038908.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "5220-69517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-69517.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5456-24741.flac |",
-      "real_speaker_id": "5456",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-666.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.40304702839232,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-112590.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 23.795965310534093,
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-      "position_frames": 86243
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 1.4284308785599755,
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-      "duration_frames": 22854,
-      "overlap": false,
-      "utterance_id": "2825-6391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2825-6391.flac |",
-      "real_speaker_id": "2825",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_038912.json b/conversations/conv_038912.json
deleted file mode 100644
index 12ef25bdae46e36d193978c3b0f855a4f35259d6..0000000000000000000000000000000000000000
--- a/conversations/conv_038912.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.85852079436458,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1923-161975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161975.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.48417808117468,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1923-155646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-155646.flac |",
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-    {
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.393179373112787,
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-      "utterance_id": "1335-163935",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-163935.flac |",
-      "real_speaker_id": "1335",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 144141
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.839239466475355,
-      "end_time": 31.85852079436458,
-      "duration": 4.0192813278892245,
-      "start_frame": 445427,
-      "duration_frames": 64308,
-      "overlap": false,
-      "utterance_id": "1335-160602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-160602.flac |",
-      "real_speaker_id": "1335",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
-      "duration": 15.55204081632653,
-      "start_time": 3.5866368233260033
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/84654.wav",
-      "duration": 1.7703174603174603,
-      "start_time": 11.908224766651038
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
-      "duration": 1.5118511871573999,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1923/laugh/0018.wav",
-      "duration": 1.08,
-      "start_time": 0,
-      "speaker_id": "1923"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1563/cough/0035.wav",
-      "duration": 0.35845569530012417,
-      "start_time": 5.103450391830295,
-      "speaker_id": "1563"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1563/laugh/0060.wav",
-      "duration": 1.195390350252817,
-      "start_time": 16.048872301349626,
-      "speaker_id": "1563"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038919.json b/conversations/conv_038919.json
deleted file mode 100644
index d9a8a22ec084c440885f8516643fad7863415d87..0000000000000000000000000000000000000000
--- a/conversations/conv_038919.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.5300052758959355,
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-      "duration_frames": 104480,
-      "overlap": false,
-      "utterance_id": "353-128309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.722997760208998,
-      "end_time": 12.847898111823508,
-      "duration": 6.12490035161451,
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-      "duration_frames": 97998,
-      "overlap": false,
-      "utterance_id": "353-128309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 104480
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.86255951785698,
-      "end_time": 17.838946442117308,
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-      "start_frame": 221800,
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-      "overlap": false,
-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.46347689591623,
-      "end_time": 21.582382302378786,
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-      "utterance_id": "8664-295007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-295007.flac |",
-      "real_speaker_id": "8664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.769789750081785,
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-      "utterance_id": "353-128309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 202478
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8664-175359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-175359.flac |",
-      "real_speaker_id": "8664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.037690796291816,
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-      "duration": 0.962309203708184,
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-      "overlap": false,
-      "utterance_id": "353-128309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 250737
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_1.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/laugh/0090.wav",
-      "duration": 1.52,
-      "start_time": 15.970202478696454,
-      "speaker_id": "5970"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/353/cough/0014.wav",
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-      "start_time": 24.904725436414473,
-      "speaker_id": "353"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038924.json b/conversations/conv_038924.json
deleted file mode 100644
index ba616990408a92d1c6757074bb90e3d53a7b0ec2..0000000000000000000000000000000000000000
--- a/conversations/conv_038924.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.232683859231237,
-  "num_speakers": 3,
-  "overlap_rate": 0.5714285714285714,
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.310523581571929,
-      "duration": 4.310523581571929,
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-      "overlap": false,
-      "utterance_id": "288-121741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-121741.flac |",
-      "real_speaker_id": "288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.4945665433538173,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-756.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.035514181852676,
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-      "duration_frames": 57565,
-      "overlap": false,
-      "utterance_id": "288-131220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-131220.flac |",
-      "real_speaker_id": "288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration": 4.345998902320448,
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-      "overlap": true,
-      "utterance_id": "3370-724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-724.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.146203866360974,
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-      "overlap": true,
-      "utterance_id": "3825-134160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.5550111410641,
-      "end_time": 30.056857539397882,
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-      "start_frame": 392880,
-      "duration_frames": 88029,
-      "overlap": false,
-      "utterance_id": "288-131220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-131220.flac |",
-      "real_speaker_id": "288",
-      "position_frames": 57565
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.054556486137784,
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-      "overlap": true,
-      "utterance_id": "288-121741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-121741.flac |",
-      "real_speaker_id": "288",
-      "position_frames": 68968
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-      "start_time": 27.922367733032083
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/288/cough/0001.wav",
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-      "start_time": 2.7636903684349896,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3825/laugh/0028.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/288/cough/0002.wav",
-      "duration": 1.0817712090041156,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038928.json b/conversations/conv_038928.json
deleted file mode 100644
index dee7898a810b6cd416ecdca32a51fc548526b4d3..0000000000000000000000000000000000000000
--- a/conversations/conv_038928.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.97238119880206,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3546-175390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.542672395217023,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
-      "real_speaker_id": "671",
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-      "utterance_id": "3546-9342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-9342.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6189-21305",
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-      "real_speaker_id": "6189",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
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-      "position_frames": 71014
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/671/laugh/0094.wav",
-      "duration": 1.2,
-      "start_time": 14.778416196376604,
-      "speaker_id": "671"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038932.json b/conversations/conv_038932.json
deleted file mode 100644
index 63cb547b7dc68491a86316c5ff044b49af1bfe43..0000000000000000000000000000000000000000
--- a/conversations/conv_038932.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.17172886580596,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.2589949168080277,
-      "duration": 3.2589949168080277,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.367385671839686,
-      "end_time": 9.738930218290477,
-      "duration": 5.371544546450791,
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-      "overlap": false,
-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.623524641522536,
-      "end_time": 16.17770576421986,
-      "duration": 5.554181122697324,
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-      "overlap": false,
-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 52143
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.294979122416994,
-      "end_time": 22.907695902998764,
-      "duration": 6.612716780581771,
-      "start_frame": 260719,
-      "duration_frames": 105803,
-      "overlap": true,
-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 85944
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.507762592871746,
-      "end_time": 29.349457554983715,
-      "duration": 6.84169496211197,
-      "start_frame": 360124,
-      "duration_frames": 109467,
-      "overlap": true,
-      "utterance_id": "6418-39653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39653.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.034287615934495,
-      "end_time": 31.17172886580596,
-      "duration": 1.1374412498714648,
-      "start_frame": 480548,
-      "duration_frames": 18199,
-      "overlap": true,
-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 141009
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3187/laugh/0018.wav",
-      "duration": 1.24,
-      "start_time": 16.452488152807653,
-      "speaker_id": "3187"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038945.json b/conversations/conv_038945.json
deleted file mode 100644
index 0603ab5db68167704daedf9b5479995ec2e4fac5..0000000000000000000000000000000000000000
--- a/conversations/conv_038945.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.414554803287704,
-      "duration": 6.414554803287704,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3240-131231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.269497714953674,
-      "end_time": 11.514646592056758,
-      "duration": 4.245148877103084,
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-      "utterance_id": "7012-75354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7012-75354.flac |",
-      "real_speaker_id": "7012",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 102632
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "5949-65530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65530.flac |",
-      "real_speaker_id": "5949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.994392681114697,
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-      "duration_frames": 78806,
-      "overlap": false,
-      "utterance_id": "3240-131231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 153140
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.649143629042374,
-      "end_time": 32.0,
-      "duration": 4.350856370957626,
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-      "overlap": false,
-      "utterance_id": "5949-65530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65530.flac |",
-      "real_speaker_id": "5949",
-      "position_frames": 94435
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
-      "duration": 3.9148801660744024,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5949/laugh/0095.wav",
-      "duration": 1.2,
-      "start_time": 19.330687277769602,
-      "speaker_id": "5949"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5949/laugh/0074.wav",
-      "duration": 1.8,
-      "start_time": 30.2,
-      "speaker_id": "5949"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038949.json b/conversations/conv_038949.json
deleted file mode 100644
index ed08022ee7c58de4d476de09940cd00b6815ab47..0000000000000000000000000000000000000000
--- a/conversations/conv_038949.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4289-21393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-21393.flac |",
-      "real_speaker_id": "4289",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.031487664359299,
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-      "utterance_id": "7511-102419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102419.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4289-12723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-12723.flac |",
-      "real_speaker_id": "4289",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "5060",
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-    {
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-      "real_speaker_id": "4289",
-      "position_frames": 52468
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-    {
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-      "real_speaker_id": "7511",
-      "position_frames": 61067
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-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "4289-12723",
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-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_038953.json b/conversations/conv_038953.json
deleted file mode 100644
index 217fe5bb9b0345f72598a328f9c9fa7e9ed6cc28..0000000000000000000000000000000000000000
--- a/conversations/conv_038953.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "797",
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-  "foreground_events": [
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-      "duration": 1.46,
-      "start_time": 30.54,
-      "speaker_id": "797"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038958.json b/conversations/conv_038958.json
deleted file mode 100644
index 6726b3162419d744147dd837e11ca6f99fe5fb8d..0000000000000000000000000000000000000000
--- a/conversations/conv_038958.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.863352622031819,
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-      "overlap": false,
-      "utterance_id": "112-123216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123216.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.321831906410882,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1472-139797.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97462.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 20.975883774154514,
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-      "utterance_id": "112-121727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-121727.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "7436-97461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97461.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.965214269602676,
-      "end_time": 32.0,
-      "duration": 1.0347857303973242,
-      "start_frame": 495443,
-      "duration_frames": 16556,
-      "overlap": false,
-      "utterance_id": "112-121727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-121727.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 61600
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.1495091261431538,
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-      "speaker_id": "112"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038964.json b/conversations/conv_038964.json
deleted file mode 100644
index 59a1372f66707cfb935bdcd02e2023b4b35d3fa5..0000000000000000000000000000000000000000
--- a/conversations/conv_038964.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.332321297437355,
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-      "real_speaker_id": "4800",
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-      "utterance_id": "6494-60774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60774.flac |",
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-      "speaker_id": 0,
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-      "utterance_id": "6494-60801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60801.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.09501909692688,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 62531
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.030022754669382,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73728.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-      "speaker_id": "5735"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038965.json b/conversations/conv_038965.json
deleted file mode 100644
index ed790745e01aca129187ef32ea33415764f27edd..0000000000000000000000000000000000000000
--- a/conversations/conv_038965.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1258-135062.flac |",
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-      "real_speaker_id": "6284",
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-    },
-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 61939,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
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-  ],
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_038969.json b/conversations/conv_038969.json
deleted file mode 100644
index ff5531f242343cc0f90e6ec67ad14801999bb149..0000000000000000000000000000000000000000
--- a/conversations/conv_038969.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_038973.json b/conversations/conv_038973.json
deleted file mode 100644
index 5f25e19e4f1fd2ec5ef5e7a8f9d4868c88072670..0000000000000000000000000000000000000000
--- a/conversations/conv_038973.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "3630",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
-      "real_speaker_id": "1171",
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-      "speaker_id": 2,
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-      "utterance_id": "7959-109185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109185.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
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-      "speaker_id": "1171"
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-}
\ No newline at end of file
diff --git a/conversations/conv_038974.json b/conversations/conv_038974.json
deleted file mode 100644
index 00a16f2d01ca92e8585ac5013679eea9b9001e67..0000000000000000000000000000000000000000
--- a/conversations/conv_038974.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 70495
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_038986.json b/conversations/conv_038986.json
deleted file mode 100644
index 8dd662640dad77e3c7323b7db44a309271087ded..0000000000000000000000000000000000000000
--- a/conversations/conv_038986.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_038990.json b/conversations/conv_038990.json
deleted file mode 100644
index bd85ef2fed68d1b0766ee5ef91114132c9d5ad42..0000000000000000000000000000000000000000
--- a/conversations/conv_038990.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246942.flac |",
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-      "utterance_id": "4051-10927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-10927.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.463205181704605,
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-      "duration": 0.5367948182953945,
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-      "utterance_id": "8465-246943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246943.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 75911
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.423795105259657,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4051/laugh/0038.wav",
-      "duration": 0.9526682381090503,
-      "start_time": 28.129085474895778,
-      "speaker_id": "4051"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039006.json b/conversations/conv_039006.json
deleted file mode 100644
index 2a80dbd554bb06693a1a31e16c1b17f088db3d5e..0000000000000000000000000000000000000000
--- a/conversations/conv_039006.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.10565982091049,
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-      "utterance_id": "3819-134145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134145.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.206128846724452,
-      "end_time": 10.521857510196032,
-      "duration": 6.31572866347158,
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-      "duration_frames": 101051,
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-      "utterance_id": "7925-111766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-111766.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "duration_frames": 89543,
-      "overlap": true,
-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.666424734173358,
-      "end_time": 23.920770782071866,
-      "duration": 6.254346047898508,
-      "start_frame": 282662,
-      "duration_frames": 100069,
-      "overlap": false,
-      "utterance_id": "3819-134153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134153.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.370651757527604,
-      "end_time": 30.105661960320308,
-      "duration": 5.735010202792704,
-      "start_frame": 389930,
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-      "overlap": false,
-      "utterance_id": "3819-134145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134145.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 49690
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.63696078964064,
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-      "duration": 1.3630392103593607,
-      "start_frame": 490191,
-      "duration_frames": 21808,
-      "overlap": false,
-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 89543
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "start_time": 7.129237296446318
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7925/cough/0082.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039010.json b/conversations/conv_039010.json
deleted file mode 100644
index 9ec329622ea5e4cbd1ad91bfaffa69b010c72473..0000000000000000000000000000000000000000
--- a/conversations/conv_039010.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.45692362462113,
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-      "overlap": false,
-      "utterance_id": "8425-246962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-246962.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.075492471399037,
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-      "utterance_id": "4397-15678",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15678.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "8425-287387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-287387.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.07584299185534,
-      "end_time": 22.97550092021187,
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-      "overlap": false,
-      "utterance_id": "8425-291444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-291444.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8259-276912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276912.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.702062583097234,
-      "end_time": 32.0,
-      "duration": 3.2979374169027658,
-      "start_frame": 459233,
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-      "overlap": false,
-      "utterance_id": "4397-15668",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4397-15668.flac |",
-      "real_speaker_id": "4397",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "8425"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039021.json b/conversations/conv_039021.json
deleted file mode 100644
index da942906b1efe313313baca270dea7abd2573f7a..0000000000000000000000000000000000000000
--- a/conversations/conv_039021.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "end_time": 3.797928628414581,
-      "duration": 3.797928628414581,
-      "start_frame": 0,
-      "duration_frames": 60766,
-      "overlap": false,
-      "utterance_id": "2919-7269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7269.flac |",
-      "real_speaker_id": "2919",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.9030951278510795,
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-      "overlap": true,
-      "utterance_id": "4260-176854",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176854.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "2919-7270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7270.flac |",
-      "real_speaker_id": "2919",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.086860994924566,
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-      "utterance_id": "4260-176853",
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-      "real_speaker_id": "4260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "2919",
-      "position_frames": 60766
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.501414903978482,
-      "end_time": 32.0,
-      "duration": 4.498585096021518,
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-      "duration_frames": 71977,
-      "overlap": false,
-      "utterance_id": "29-123027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/29-123027.flac |",
-      "real_speaker_id": "29",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4260/laugh/0112.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4260/cough/0007.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4260/laugh/0094.wav",
-      "duration": 1.56,
-      "start_time": 16.61639546943456,
-      "speaker_id": "4260"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039026.json b/conversations/conv_039026.json
deleted file mode 100644
index 99a41aa38a2419530524eb7587add412e3ba9cf1..0000000000000000000000000000000000000000
--- a/conversations/conv_039026.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.02835166375421,
-      "duration": 4.02835166375421,
-      "start_frame": 0,
-      "duration_frames": 64453,
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-      "utterance_id": "8470-286666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286666.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "797",
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-    {
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-      "utterance_id": "8470-279797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
-      "real_speaker_id": "8470",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.97609656715574,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
-      "real_speaker_id": "8470",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 32.0,
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-      "utterance_id": "797-127183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127183.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 87910
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-      "duration": 1.16,
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-      "event_class": "cough",
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-      "start_time": 18.54700019658726,
-      "speaker_id": "8470"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039030.json b/conversations/conv_039030.json
deleted file mode 100644
index 3dffade32c652ee523c67f88fe84a683a1fcd785..0000000000000000000000000000000000000000
--- a/conversations/conv_039030.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1154-129976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129976.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/240-144999.flac |",
-      "real_speaker_id": "240",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111638.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 15.872939140870589,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129976.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 83289
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "240-160593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/240-160593.flac |",
-      "real_speaker_id": "240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.67284073353422,
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-      "duration": 3.327159266465781,
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-      "utterance_id": "1154-129976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129976.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 177999
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-      "speaker_id": "1154"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039031.json b/conversations/conv_039031.json
deleted file mode 100644
index 5a1aa5eaaf06d6836dc350439e4bda5468662911..0000000000000000000000000000000000000000
--- a/conversations/conv_039031.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-282412.flac |",
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-      "position_frames": 0
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-      "utterance_id": "8347-258283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-258283.flac |",
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-      "position_frames": 0
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-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.777457581713655,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
-      "position_frames": 111576
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.5219899562267614,
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-      "utterance_id": "8347-282412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-282412.flac |",
-      "real_speaker_id": "8347",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_12.wav",
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-      "event_class": "Dishes",
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\ No newline at end of file
diff --git a/conversations/conv_039037.json b/conversations/conv_039037.json
deleted file mode 100644
index a020ca18d6e03d287a959a9d77d33d17542482f3..0000000000000000000000000000000000000000
--- a/conversations/conv_039037.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "start_time": 0.0,
-      "end_time": 4.147327507516607,
-      "duration": 4.147327507516607,
-      "start_frame": 0,
-      "duration_frames": 66357,
-      "overlap": false,
-      "utterance_id": "779-126735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-126735.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.963500116121702,
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-      "duration_frames": 105951,
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-      "utterance_id": "1401-146770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-146770.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
-    },
-    {
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-      "overlap": true,
-      "utterance_id": "7011-66622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
-      "real_speaker_id": "7011",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "779",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.946221804876217,
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-      "real_speaker_id": "1401",
-      "position_frames": 0
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-      "event_class": "Cat",
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-    {
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-      "start_time": 18.588212195950486,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/779/laugh/0003.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/779/cough/0005.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.3409990006411479,
-      "start_time": 30.659000999358852,
-      "speaker_id": "1401"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039047.json b/conversations/conv_039047.json
deleted file mode 100644
index b10c2b6b972ede48cdcf3743d0714bda712c050b..0000000000000000000000000000000000000000
--- a/conversations/conv_039047.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3380-6175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3380-6175.flac |",
-      "real_speaker_id": "3380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3380-6175.flac |",
-      "real_speaker_id": "3380",
-      "position_frames": 130474
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145720.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "3380"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039051.json b/conversations/conv_039051.json
deleted file mode 100644
index 24eb2583a42be99ab646db1fc436e90098011bd0..0000000000000000000000000000000000000000
--- a/conversations/conv_039051.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.340053878715298,
-      "duration": 4.340053878715298,
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-      "overlap": false,
-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.781696129315394,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 69440
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-      "overlap": false,
-      "utterance_id": "1175-126220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1175-126220.flac |",
-      "real_speaker_id": "1175",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.958487833261042,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 151699
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.003987325609383,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1175-126221.flac |",
-      "real_speaker_id": "1175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.295036054419338,
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-      "duration": 2.704963945580662,
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-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 245733
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-      "duration": 1.12,
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-}
\ No newline at end of file
diff --git a/conversations/conv_039060.json b/conversations/conv_039060.json
deleted file mode 100644
index 7103f6c2133e7889c78bd5a7f5e488373ee2c3ea..0000000000000000000000000000000000000000
--- a/conversations/conv_039060.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.13219254026575,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "3088-5436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5436.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5019",
-      "position_frames": 0
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-      "utterance_id": "3088-5441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5441.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "362-123047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123047.flac |",
-      "real_speaker_id": "362",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-38670.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039067.json b/conversations/conv_039067.json
deleted file mode 100644
index e52675145e694a5467df8777446ee02a0cbaea4f..0000000000000000000000000000000000000000
--- a/conversations/conv_039067.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7121-88076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-88076.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7121-88076.flac |",
-      "real_speaker_id": "7121",
-      "position_frames": 62734
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "2146",
-      "position_frames": 88343
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "4766",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 139607
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-  "background_events": [
-    {
-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_039071.json b/conversations/conv_039071.json
deleted file mode 100644
index 4a441fcc74cebe01642f5b2d2cb79e2c3a6f29b9..0000000000000000000000000000000000000000
--- a/conversations/conv_039071.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7515-220980",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7515-220980.flac |",
-      "real_speaker_id": "7515",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.097077872838718,
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-      "real_speaker_id": "7515",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
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-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "7515"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039076.json b/conversations/conv_039076.json
deleted file mode 100644
index 3818ffdf65d71d36b7d5dc111a6f91731a6d9435..0000000000000000000000000000000000000000
--- a/conversations/conv_039076.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6519-231834",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-231834.flac |",
-      "real_speaker_id": "6519",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.515891128144329,
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-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.528056055989047,
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-      "utterance_id": "6519-69412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-69412.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.44606959564899,
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-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 84802
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-      "segment_id": "seg0005",
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-      "utterance_id": "6519-69412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6519-69412.flac |",
-      "real_speaker_id": "6519",
-      "position_frames": 67823
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039084.json b/conversations/conv_039084.json
deleted file mode 100644
index 7062fab3092b3026551ccb932f32a154567b8e06..0000000000000000000000000000000000000000
--- a/conversations/conv_039084.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.065526173186168,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1154-134886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134886.flac |",
-      "real_speaker_id": "1154",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134886.flac |",
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-      "utterance_id": "6709-80475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6709-80475.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039088.json b/conversations/conv_039088.json
deleted file mode 100644
index a0c6a2abc507840d141b3aa439dae81d07da3019..0000000000000000000000000000000000000000
--- a/conversations/conv_039088.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.349833858512746,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2143-145731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2143-145731.flac |",
-      "real_speaker_id": "2143",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.47009459372754,
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-      "real_speaker_id": "2143",
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-      "duration_frames": 15905,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2143-145731.flac |",
-      "real_speaker_id": "2143",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_039092.json b/conversations/conv_039092.json
deleted file mode 100644
index b78539eeb2a93e097e14820a4caa994e83327761..0000000000000000000000000000000000000000
--- a/conversations/conv_039092.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7795-105407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7229-80665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80665.flac |",
-      "real_speaker_id": "7229",
-      "position_frames": 0
-    },
-    {
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7229-80656.flac |",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_039099.json b/conversations/conv_039099.json
deleted file mode 100644
index f20f36e19b5967502f1c2fd6fa1386b895fc9757..0000000000000000000000000000000000000000
--- a/conversations/conv_039099.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "107-22885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/107-22885.flac |",
-      "real_speaker_id": "107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.710310010024982,
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-      "real_speaker_id": "1342",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/982-133222.flac |",
-      "real_speaker_id": "982",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133248.flac |",
-      "real_speaker_id": "1342",
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-      "position_frames": 92274
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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\ No newline at end of file
diff --git a/conversations/conv_039102.json b/conversations/conv_039102.json
deleted file mode 100644
index c3d6ffa6b90357f35c3efc41c84aa4bdaef2a214..0000000000000000000000000000000000000000
--- a/conversations/conv_039102.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_039114.json b/conversations/conv_039114.json
deleted file mode 100644
index 986f8c866b0a48e6124b10cfa26aac3a65e24986..0000000000000000000000000000000000000000
--- a/conversations/conv_039114.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6081",
-      "position_frames": 0
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-      "real_speaker_id": "4863",
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-    {
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-    {
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_039118.json b/conversations/conv_039118.json
deleted file mode 100644
index f41c683d992b6ba18f6679052c65cfb56e103edf..0000000000000000000000000000000000000000
--- a/conversations/conv_039118.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2488-155508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155508.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 95007
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6145-54685",
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-      "real_speaker_id": "6145",
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-      "position_frames": 0
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-      "start_time": 25.156777087438222,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155508.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 178295
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.29218455486259,
-      "end_time": 32.0,
-      "duration": 2.7078154451374097,
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-      "overlap": false,
-      "utterance_id": "2967-4901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4901.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_1.wav",
-      "duration": 1.2840510646720902,
-      "start_time": 5.383864516449959
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6145/laugh/0016.wav",
-      "duration": 0.92,
-      "start_time": 15.508422450151707,
-      "speaker_id": "6145"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2967/laugh/0108.wav",
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-      "start_time": 20.604886884149266,
-      "speaker_id": "2967"
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-      "event_class": "cough",
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-      "duration": 0.9692795919643111,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 29.24717652222148,
-      "speaker_id": "2488"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2488/cough/0131.wav",
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-      "speaker_id": "2488"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039122.json b/conversations/conv_039122.json
deleted file mode 100644
index 42321e83418fe8aff74e67f67b5242f342164b57..0000000000000000000000000000000000000000
--- a/conversations/conv_039122.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.06653326697743,
-  "num_speakers": 3,
-  "overlap_rate": 0.5714285714285714,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7115801513196884,
-      "duration": 3.7115801513196884,
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-      "overlap": false,
-      "utterance_id": "7398-98878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98878.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.156396229829184,
-      "end_time": 10.121537178594718,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.655534333656346,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98877.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "7046-80695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-80695.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.586057553595637,
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-      "utterance_id": "8208-256239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256239.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.482249920967035,
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-      "utterance_id": "7398-98880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98880.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.60322968420717,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039125.json b/conversations/conv_039125.json
deleted file mode 100644
index 27509945db478270e298a07f4356737a23fa90cd..0000000000000000000000000000000000000000
--- a/conversations/conv_039125.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3587",
-      "position_frames": 106154
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163507.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "845",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3185-163505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163505.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
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-      "position_frames": 106457
-    }
-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-      "start_time": 5.704010405085544
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "start_time": 24.661412948591995,
-      "speaker_id": "845"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3185/laugh/0013.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/laugh/0044.wav",
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-      "speaker_id": "845"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039133.json b/conversations/conv_039133.json
deleted file mode 100644
index 1896465022a7d9401a62fc4a8f7ba00055765b88..0000000000000000000000000000000000000000
--- a/conversations/conv_039133.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0005",
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-  "paralinguistic_events": [
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-      "duration": 1.0458504933238086,
-      "start_time": 30.954149506676192,
-      "speaker_id": "5588"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039134.json b/conversations/conv_039134.json
deleted file mode 100644
index fb9d790a9a102c8afb327ddc894c3a354258fba9..0000000000000000000000000000000000000000
--- a/conversations/conv_039134.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.12370231737046,
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-      "overlap": false,
-      "utterance_id": "4005-14905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-14905.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.1334853503361515,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7258.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.839036147577799,
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-      "overlap": true,
-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.312459060918517,
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-      "utterance_id": "3546-9321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-9321.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.747377009624667,
-      "end_time": 30.27622321027433,
-      "duration": 4.5288462006496655,
-      "start_frame": 411958,
-      "duration_frames": 72461,
-      "overlap": false,
-      "utterance_id": "4005-7258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7258.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 65897
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.43070813155594,
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-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
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-  "background_events": [
-    {
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-      "speaker_id": "6906"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039138.json b/conversations/conv_039138.json
deleted file mode 100644
index a46ff9c27f179a6362fe72bf7ebd12d4fc7e9c71..0000000000000000000000000000000000000000
--- a/conversations/conv_039138.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "3793-4707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-4707.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176682.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3793-4707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-4707.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 177314
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "end_time": 32.0,
-      "duration": 0.32152479758252284,
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-      "overlap": false,
-      "utterance_id": "803-139752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/803-139752.flac |",
-      "real_speaker_id": "803",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-    {
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-      "start_time": 31.10033017459222,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039143.json b/conversations/conv_039143.json
deleted file mode 100644
index 5327975a305d883006163240e3da1744f2a1a972..0000000000000000000000000000000000000000
--- a/conversations/conv_039143.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 71821
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_039155.json b/conversations/conv_039155.json
deleted file mode 100644
index ded9ebb0985342c2482eb24459aeaa2dc6c058ed..0000000000000000000000000000000000000000
--- a/conversations/conv_039155.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.948664830147145,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3330/laugh/0112.wav",
-      "duration": 1.0,
-      "start_time": 22.226616619107876,
-      "speaker_id": "3330"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039158.json b/conversations/conv_039158.json
deleted file mode 100644
index 39fbdbe1efb0633b9c0a57cf4e0b5e5bbbbde96a..0000000000000000000000000000000000000000
--- a/conversations/conv_039158.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.61096112277287,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.745441984401819,
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-      "start_frame": 0,
-      "duration_frames": 75927,
-      "overlap": false,
-      "utterance_id": "7131-92917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7131-92917.flac |",
-      "real_speaker_id": "7131",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.718762890164623,
-      "end_time": 10.686154059045393,
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-      "overlap": false,
-      "utterance_id": "3319-173247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-173247.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.512273565857107,
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-      "utterance_id": "7131-92815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7131-92815.flac |",
-      "real_speaker_id": "7131",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.73859899299441,
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-      "duration_frames": 83296,
-      "overlap": true,
-      "utterance_id": "8087-118174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8087-118174.flac |",
-      "real_speaker_id": "8087",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.966382213782488,
-      "end_time": 27.89598488828593,
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-      "duration_frames": 94873,
-      "overlap": true,
-      "utterance_id": "7131-92917",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7131-92917.flac |",
-      "real_speaker_id": "7131",
-      "position_frames": 75927
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.271766649767137,
-      "end_time": 31.61096112277287,
-      "duration": 3.3391944730057332,
-      "start_frame": 452348,
-      "duration_frames": 53427,
-      "overlap": true,
-      "utterance_id": "3319-171003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-171003.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 13.01853040846132,
-      "start_time": 1.6217978832141982
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_6.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7131/laugh/0012.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7131/laugh/0091.wav",
-      "duration": 0.7098648028325986,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.84,
-      "start_time": 27.969630267659305,
-      "speaker_id": "7131"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039159.json b/conversations/conv_039159.json
deleted file mode 100644
index ebe67a1ed0327d91417b524ccb7af3a11c6f90be..0000000000000000000000000000000000000000
--- a/conversations/conv_039159.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.403393384666714,
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-      "utterance_id": "1772-135621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 72860
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.339959931657674,
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-      "duration": 3.532505722607758,
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-      "duration_frames": 56520,
-      "overlap": false,
-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.573068120631977,
-      "end_time": 28.21904507856368,
-      "duration": 6.645976957931705,
-      "start_frame": 345169,
-      "duration_frames": 106335,
-      "overlap": false,
-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 176416
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.641657722449338,
-      "end_time": 32.0,
-      "duration": 3.358342277550662,
-      "start_frame": 458266,
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-      "overlap": false,
-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 56520
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-      "start_time": 12.011217406289157
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1040/laugh/0024.wav",
-      "duration": 0.5856044903786835,
-      "start_time": 17.01069941928294,
-      "speaker_id": "1040"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7522/laugh/0076.wav",
-      "duration": 1.32,
-      "start_time": 15.948385061193656,
-      "speaker_id": "7522"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039163.json b/conversations/conv_039163.json
deleted file mode 100644
index 56003b11a105e30a0e063a461b39be4788edc91b..0000000000000000000000000000000000000000
--- a/conversations/conv_039163.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "5350-205003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205003.flac |",
-      "real_speaker_id": "5350",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.709972451617227,
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-      "overlap": false,
-      "utterance_id": "32-21634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21634.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 10.708592373872726,
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-      "overlap": true,
-      "utterance_id": "5350-205003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205003.flac |",
-      "real_speaker_id": "5350",
-      "position_frames": 83148
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "6943-85168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85168.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.795223710967704,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21634.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 71665
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "32-21631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-21631.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.729393663677634,
-      "end_time": 32.0,
-      "duration": 1.2706063363223663,
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-      "overlap": false,
-      "utterance_id": "6943-64094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-64094.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "paralinguistic_events": [
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-      "duration": 0.76,
-      "start_time": 21.171171459420624,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6943/cough/0054.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6943/laugh/0065.wav",
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-      "start_time": 30.748920599302483,
-      "speaker_id": "6943"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039164.json b/conversations/conv_039164.json
deleted file mode 100644
index 94dd8ad62b99aee4ba01b437f8e64d6f2fe21236..0000000000000000000000000000000000000000
--- a/conversations/conv_039164.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "utterance_id": "3340-169293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-169293.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130103.flac |",
-      "real_speaker_id": "510",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-169293.flac |",
-      "real_speaker_id": "3340",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6199-64259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-64259.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/510/laugh/0062.wav",
-      "duration": 1.56,
-      "start_time": 2.7147758841922522,
-      "speaker_id": "510"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/510/cough/0079.wav",
-      "duration": 0.5781346957787894,
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-      "speaker_id": "510"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3340/cough/0065.wav",
-      "duration": 0.7420943018790913,
-      "start_time": 16.636311050933966,
-      "speaker_id": "3340"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/510/cough/0002.wav",
-      "duration": 1.04,
-      "start_time": 30.45887809329648,
-      "speaker_id": "510"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039172.json b/conversations/conv_039172.json
deleted file mode 100644
index 1bca55cdc4a0df32cd61a4c301b75d212d82d682..0000000000000000000000000000000000000000
--- a/conversations/conv_039172.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.067912925082434,
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-      "utterance_id": "5242-35926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35926.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.955722491973956,
-      "end_time": 8.152508673088644,
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-      "overlap": true,
-      "utterance_id": "8803-296082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296082.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.245936422725556,
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-      "duration": 4.864333158917093,
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-      "utterance_id": "5242-35921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 14.302652938461991,
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-      "utterance_id": "5906-52158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-52158.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.765759922736272,
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-      "duration": 4.399490163422733,
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-      "overlap": false,
-      "utterance_id": "5242-35921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
-      "real_speaker_id": "5242",
-      "position_frames": 77829
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.0149051894141,
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-      "utterance_id": "8803-296085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296085.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.84509523543263,
-      "end_time": 32.0,
-      "duration": 1.1549047645673696,
-      "start_frame": 493521,
-      "duration_frames": 18478,
-      "overlap": false,
-      "utterance_id": "5906-52158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-52158.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 83862
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5242/laugh/0038.wav",
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-    {
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-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 19.550007663755558,
-      "speaker_id": "5906"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039174.json b/conversations/conv_039174.json
deleted file mode 100644
index 533f7a5a095a4b5e45089fea506937a4c6211e3f..0000000000000000000000000000000000000000
--- a/conversations/conv_039174.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.10355769467825,
-      "duration": 5.10355769467825,
-      "start_frame": 0,
-      "duration_frames": 81656,
-      "overlap": false,
-      "utterance_id": "1566-133291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-133291.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.861631027213976,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128140.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.20568398844925,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7679-113325.flac |",
-      "real_speaker_id": "7679",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.73788351197534,
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-      "utterance_id": "1566-153036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-153036.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.759993961671864,
-      "end_time": 21.752489347386245,
-      "duration": 3.992495385714383,
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-      "overlap": true,
-      "utterance_id": "1579-128155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128155.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.932324290371852,
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-      "duration": 5.545703131303706,
-      "start_frame": 366917,
-      "duration_frames": 88731,
-      "overlap": false,
-      "utterance_id": "1566-133291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-133291.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 81656
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.850553376524594,
-      "end_time": 32.0,
-      "duration": 3.1494466234754057,
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-      "overlap": false,
-      "utterance_id": "1579-128131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128131.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1566/laugh/0135.wav",
-      "duration": 1.22,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1579/laugh/0095.wav",
-      "duration": 1.32,
-      "start_time": 30.49777116476208,
-      "speaker_id": "1579"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039175.json b/conversations/conv_039175.json
deleted file mode 100644
index f5c15061ae91a00ad71ed2a7b74ac251aff25880..0000000000000000000000000000000000000000
--- a/conversations/conv_039175.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5123-29120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.647262711760513,
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-      "utterance_id": "483-125116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125116.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125126.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.430332807415425,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 72397
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.578857948676458,
-      "end_time": 32.0,
-      "duration": 1.4211420513235424,
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-      "duration_frames": 22738,
-      "overlap": false,
-      "utterance_id": "5123-34572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/46/laugh/0055.wav",
-      "duration": 1.4,
-      "start_time": 28.418028668413776,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/46/cough/0040.wav",
-      "duration": 0.96,
-      "start_time": 29.984586724842575,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5123/laugh/0081.wav",
-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "5123"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039179.json b/conversations/conv_039179.json
deleted file mode 100644
index 83feda6305a6fb1e086c598919843b0c62b8519a..0000000000000000000000000000000000000000
--- a/conversations/conv_039179.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.184909156267935,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.414681087528999,
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-      "utterance_id": "4659-26489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-26489.flac |",
-      "real_speaker_id": "4659",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-43337.flac |",
-      "real_speaker_id": "4687",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-12465.flac |",
-      "real_speaker_id": "4659",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "4687-43336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-43336.flac |",
-      "real_speaker_id": "4687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.875472212501982,
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-      "utterance_id": "1322-137589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1322-137589.flac |",
-      "real_speaker_id": "1322",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.537317116922324,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-12465.flac |",
-      "real_speaker_id": "4659",
-      "position_frames": 59185
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.2403203824074556,
-      "start_time": 14.710478244937848
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-      "event_class": "Dog",
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-      "duration": 2.188775510204082,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1322/cough/0056.wav",
-      "duration": 1.1604178505964056,
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-      "speaker_id": "1322"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039180.json b/conversations/conv_039180.json
deleted file mode 100644
index 2529809f5c1ee826b864dbbfb920d787e20cf840..0000000000000000000000000000000000000000
--- a/conversations/conv_039180.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.97405579737538,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5255934210346793,
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-      "start_frame": 0,
-      "duration_frames": 56409,
-      "overlap": false,
-      "utterance_id": "458-126290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126290.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 2.9205238462854535,
-      "end_time": 8.305279472955254,
-      "duration": 5.384755626669801,
-      "start_frame": 46728,
-      "duration_frames": 86156,
-      "overlap": true,
-      "utterance_id": "2388-153728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153728.flac |",
-      "real_speaker_id": "2388",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.163921066046385,
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-      "overlap": false,
-      "utterance_id": "458-126294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126294.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.738910158610432,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126294.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 63137
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.884759078136142,
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-      "utterance_id": "2388-153733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153733.flac |",
-      "real_speaker_id": "2388",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.63010388385956,
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-      "utterance_id": "458-126294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126294.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 142699
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
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-    {
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-  "paralinguistic_events": [
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-      "speaker_id": "458"
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.2749330851384608,
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-      "speaker_id": "458"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039196.json b/conversations/conv_039196.json
deleted file mode 100644
index 623a8497f20fd58a8a1ec746b2d8f34dd4a3719a..0000000000000000000000000000000000000000
--- a/conversations/conv_039196.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.578615828761426,
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-      "start_frame": 0,
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-      "utterance_id": "5448-19208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147981.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "585-294811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147967.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 22.43463894824827,
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-      "real_speaker_id": "5448",
-      "position_frames": 89257
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 3.817126438373048,
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-      "duration_frames": 61074,
-      "overlap": false,
-      "utterance_id": "585-294811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 65166
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2004/laugh/0006.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5448/laugh/0012.wav",
-      "duration": 1.32,
-      "start_time": 21.017882634653827,
-      "speaker_id": "5448"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/585/laugh/0046.wav",
-      "duration": 1.3914260978506585,
-      "start_time": 30.60857390214934,
-      "speaker_id": "585"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039207.json b/conversations/conv_039207.json
deleted file mode 100644
index e82b645aa5dabf1b3280365b8fb6e7ca43761399..0000000000000000000000000000000000000000
--- a/conversations/conv_039207.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.050228634604075,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "overlap": false,
-      "utterance_id": "3513-7741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-7741.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    },
-    {
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-    {
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-    {
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-    {
-      "segment_id": "seg0004",
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3513/laugh/0086.wav",
-      "duration": 1.0,
-      "start_time": 27.56561912288814,
-      "speaker_id": "3513"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3513/cough/0118.wav",
-      "duration": 1.2,
-      "start_time": 27.582196516749477,
-      "speaker_id": "3513"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039211.json b/conversations/conv_039211.json
deleted file mode 100644
index 3d5c086acf3ba84f1da390dc841b88708339454b..0000000000000000000000000000000000000000
--- a/conversations/conv_039211.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.227163851937483,
-      "duration": 4.227163851937483,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8063-274117",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274117.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.394381615602072,
-      "end_time": 10.452215634907564,
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-      "utterance_id": "374-180299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180299.flac |",
-      "real_speaker_id": "374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.040111548224722,
-      "end_time": 17.079628564588177,
-      "duration": 6.039517016363456,
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-      "overlap": false,
-      "utterance_id": "8063-274116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274116.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.41655049656155,
-      "end_time": 21.91448798730218,
-      "duration": 4.497937490740632,
-      "start_frame": 278664,
-      "duration_frames": 71966,
-      "overlap": true,
-      "utterance_id": "8063-274112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274112.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.25526543628906,
-      "end_time": 27.13088882711148,
-      "duration": 4.875623390822418,
-      "start_frame": 356084,
-      "duration_frames": 78009,
-      "overlap": false,
-      "utterance_id": "19-227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.278008693596007,
-      "end_time": 32.0,
-      "duration": 4.721991306403993,
-      "start_frame": 436448,
-      "duration_frames": 75551,
-      "overlap": false,
-      "utterance_id": "374-180298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180298.flac |",
-      "real_speaker_id": "374",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 3.3931435257824814,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8063/laugh/0041.wav",
-      "duration": 0.7134786947211234,
-      "start_time": 17.276033621110958,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/374/laugh/0098.wav",
-      "duration": 0.8233425495562015,
-      "start_time": 31.1766574504438,
-      "speaker_id": "374"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039226.json b/conversations/conv_039226.json
deleted file mode 100644
index f3a4680bc418b367a55290767f4f095660b61da2..0000000000000000000000000000000000000000
--- a/conversations/conv_039226.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6173-76448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6173-76448.flac |",
-      "real_speaker_id": "6173",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.773955828587473,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-48014.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
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-      "duration": 5.219413853816793,
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-      "utterance_id": "1901-147822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-147822.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.509652515628671,
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-      "duration": 5.937293675969338,
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-      "duration_frames": 94996,
-      "overlap": false,
-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.842393272036414,
-      "end_time": 25.749233056550256,
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-      "duration_frames": 62509,
-      "overlap": false,
-      "utterance_id": "1901-147822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-147822.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 83510
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.155350403693554,
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-      "duration_frames": 64765,
-      "overlap": false,
-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 94996
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 159761
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1901/laugh/0017.wav",
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-      "start_time": 25.864672900160766,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039227.json b/conversations/conv_039227.json
deleted file mode 100644
index dc52420dee1b4881aa56c2783edc56f536fa61c3..0000000000000000000000000000000000000000
--- a/conversations/conv_039227.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2573-178450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-178450.flac |",
-      "real_speaker_id": "2573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.1036438688573815,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-178449.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
-      "real_speaker_id": "778",
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-    {
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-      "real_speaker_id": "4344",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4344-8892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4344-8892.flac |",
-      "real_speaker_id": "4344",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "778-126734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
-      "real_speaker_id": "778",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Blender",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_039231.json b/conversations/conv_039231.json
deleted file mode 100644
index 686b29ec188f0be2959339a34128e5f6b32a78b2..0000000000000000000000000000000000000000
--- a/conversations/conv_039231.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
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-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-    {
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
-      "duration": 3.1449075825266015,
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4044/laugh/0062.wav",
-      "duration": 0.8223681909070051,
-      "start_time": 22.909517670029903,
-      "speaker_id": "4044"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4590/laugh/0077.wav",
-      "duration": 1.3875076793282406,
-      "start_time": 23.01276122034866,
-      "speaker_id": "4590"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7717/laugh/0002.wav",
-      "duration": 0.8399975328794763,
-      "start_time": 31.160002467120524,
-      "speaker_id": "7717"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039236.json b/conversations/conv_039236.json
deleted file mode 100644
index 1ac229360357f8a83ecb9364a4fb121fde10a3fd..0000000000000000000000000000000000000000
--- a/conversations/conv_039236.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.321142566940594,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.009058939410753,
-      "duration": 6.009058939410753,
-      "start_frame": 0,
-      "duration_frames": 96144,
-      "overlap": false,
-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.321884260140014,
-      "end_time": 12.348660354764105,
-      "duration": 5.026776094624091,
-      "start_frame": 117150,
-      "duration_frames": 80428,
-      "overlap": false,
-      "utterance_id": "1154-129976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129976.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.54971979481899,
-      "end_time": 16.026758377067086,
-      "duration": 3.4770385822480963,
-      "start_frame": 200795,
-      "duration_frames": 55632,
-      "overlap": false,
-      "utterance_id": "4039-184266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.017458471160392,
-      "end_time": 20.25217884041593,
-      "duration": 4.234720369255539,
-      "start_frame": 256279,
-      "duration_frames": 67755,
-      "overlap": true,
-      "utterance_id": "5909-107621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-107621.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.72088687538363,
-      "end_time": 27.20901440536172,
-      "duration": 5.488127529978092,
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-      "duration_frames": 87810,
-      "overlap": false,
-      "utterance_id": "5909-287837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-287837.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.582210743113507,
-      "end_time": 31.321142566940594,
-      "duration": 3.7389318238270883,
-      "start_frame": 441315,
-      "duration_frames": 59822,
-      "overlap": false,
-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 96144
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
-      "duration": 14.907210884353741,
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 2.0806380131491835,
-      "start_time": 22.23827047114818
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
-      "duration": 0.19419501133786848,
-      "start_time": 23.367215858206976
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4039/laugh/0091.wav",
-      "duration": 1.2,
-      "start_time": 16.22808768902335,
-      "speaker_id": "4039"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5909/laugh/0027.wav",
-      "duration": 0.641947861015213,
-      "start_time": 20.967824779860138,
-      "speaker_id": "5909"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039246.json b/conversations/conv_039246.json
deleted file mode 100644
index 29ab480106bd3a3f872905f7452f7466284401db..0000000000000000000000000000000000000000
--- a/conversations/conv_039246.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8300-275127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275127.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.954573199340505,
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-      "overlap": false,
-      "utterance_id": "7538-100043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100043.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "7538-100044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100044.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.906669988247305,
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-      "utterance_id": "6733-74807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6733-74807.flac |",
-      "real_speaker_id": "6733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.911605606847026,
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-      "duration": 5.3954342623634375,
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-      "utterance_id": "7538-100044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100044.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 61059
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.433198367356184,
-      "end_time": 31.150382132677365,
-      "duration": 5.717183765321179,
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-      "duration_frames": 91474,
-      "overlap": false,
-      "utterance_id": "6733-74807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6733-74807.flac |",
-      "real_speaker_id": "6733",
-      "position_frames": 80236
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.651923279038485,
-      "end_time": 32.0,
-      "duration": 0.3480767209615152,
-      "start_frame": 506430,
-      "duration_frames": 5569,
-      "overlap": false,
-      "utterance_id": "8300-275127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275127.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 55861
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 6.2222590331919205
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-  ],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "8300"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.44,
-      "start_time": 9.177121850495533,
-      "speaker_id": "7538"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6733/cough/0119.wav",
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-      "start_time": 30.15066953018372,
-      "speaker_id": "6733"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8300/cough/0066.wav",
-      "duration": 1.0685355335375673,
-      "start_time": 30.38749348840387,
-      "speaker_id": "8300"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039250.json b/conversations/conv_039250.json
deleted file mode 100644
index 2db2a41b9a797b9b4f1a92be922fd863b5c9e342..0000000000000000000000000000000000000000
--- a/conversations/conv_039250.json
+++ /dev/null
@@ -1,95 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.969935584467542,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.357833306412813,
-      "duration": 5.357833306412813,
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-      "overlap": false,
-      "utterance_id": "1403-130575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-130575.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.008589904543779,
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-      "overlap": false,
-      "utterance_id": "5023-33399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-33399.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.11721511718392,
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-      "start_frame": 209875,
-      "duration_frames": 87222,
-      "overlap": true,
-      "utterance_id": "1403-138552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.163537327604743,
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-      "overlap": true,
-      "utterance_id": "2416-152137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2416-152137.flac |",
-      "real_speaker_id": "2416",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.018924296255975,
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-      "utterance_id": "5023-1185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-1185.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-      "start_time": 1.0593973074789058
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_14.wav",
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-      "start_time": 23.563486119204104
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_039266.json b/conversations/conv_039266.json
deleted file mode 100644
index 0833509feddfe79d87e2b30a60a36d6a188acf1f..0000000000000000000000000000000000000000
--- a/conversations/conv_039266.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.644589384611717,
-      "duration": 4.644589384611717,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.712052444006672,
-      "end_time": 8.770864332569893,
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-      "start_frame": 75392,
-      "duration_frames": 64940,
-      "overlap": true,
-      "utterance_id": "3553-734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-734.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3553-697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
-      "duration": 1.0078118077628164,
-      "start_time": 12.56546345539152
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_039270.json b/conversations/conv_039270.json
deleted file mode 100644
index 8b2b6c690963316766b668a25be9ee0288769d7b..0000000000000000000000000000000000000000
--- a/conversations/conv_039270.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.207811052549058,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.159374716735219,
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-      "utterance_id": "5906-52158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-52158.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.006680660997966,
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-      "overlap": false,
-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.358113785758047,
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-      "duration": 4.168325324349179,
-      "start_frame": 181729,
-      "duration_frames": 66693,
-      "overlap": false,
-      "utterance_id": "4277-185519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185519.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.325595715631287,
-      "end_time": 21.311560669423535,
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-      "utterance_id": "5906-59283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-59283.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.61994344669456,
-      "end_time": 27.420140199242375,
-      "duration": 5.8001967525478175,
-      "start_frame": 345919,
-      "duration_frames": 92803,
-      "overlap": false,
-      "utterance_id": "5906-59283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-59283.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 79775
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.927488414076876,
-      "end_time": 31.207811052549058,
-      "duration": 3.280322638472181,
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-      "duration_frames": 52485,
-      "overlap": false,
-      "utterance_id": "4277-185517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185517.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-      "duration": 1.32,
-      "start_time": 5.642924757760378,
-      "speaker_id": "283"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/283/cough/0026.wav",
-      "duration": 1.12,
-      "start_time": 10.45917496224614,
-      "speaker_id": "283"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4277/laugh/0063.wav",
-      "duration": 1.48,
-      "start_time": 13.009035932082448,
-      "speaker_id": "4277"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039285.json b/conversations/conv_039285.json
deleted file mode 100644
index f77c750ec516108dd7686b6a871ca784d9bb27b0..0000000000000000000000000000000000000000
--- a/conversations/conv_039285.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7548494253742595,
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-      "utterance_id": "1347-164338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9657766224460693,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 60077
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8194-89388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.21522407445367,
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-      "overlap": false,
-      "utterance_id": "6038-56777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.557716348998216,
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-      "duration": 5.442283651001784,
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-      "overlap": false,
-      "utterance_id": "1347-164338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 141010
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "event_class": "cough",
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-      "speaker_id": "1347"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039289.json b/conversations/conv_039289.json
deleted file mode 100644
index 9b801475b8e01cd80e6ec32b7806d434be1ef375..0000000000000000000000000000000000000000
--- a/conversations/conv_039289.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.97483614078692,
-  "num_speakers": 3,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126265.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
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-      "real_speaker_id": "111",
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-      "speaker_id": 2,
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-      "speaker_id": 0,
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-      "utterance_id": "111-129000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3990-31915",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039293.json b/conversations/conv_039293.json
deleted file mode 100644
index a88bd7945ee139ebce6a1148c3be07e51badcc38..0000000000000000000000000000000000000000
--- a/conversations/conv_039293.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
-      "duration": 0.6518367346938776,
-      "start_time": 9.130746723311251
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3006/laugh/0041.wav",
-      "duration": 1.2,
-      "start_time": 28.442129252931906,
-      "speaker_id": "3006"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3006/cough/0125.wav",
-      "duration": 0.92,
-      "start_time": 28.771848767331566,
-      "speaker_id": "3006"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039303.json b/conversations/conv_039303.json
deleted file mode 100644
index 66cba359c46113ac54e0139c5ac4a103dbf54689..0000000000000000000000000000000000000000
--- a/conversations/conv_039303.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.732614468612248,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.339334290793408,
-      "duration": 5.339334290793408,
-      "start_frame": 0,
-      "duration_frames": 85429,
-      "overlap": false,
-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.923251302566483,
-      "end_time": 10.770728494024757,
-      "duration": 4.847477191458275,
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-      "utterance_id": "3537-5704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5704.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.221551646638883,
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-      "duration": 3.9026004193455,
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-      "duration_frames": 62441,
-      "overlap": true,
-      "utterance_id": "8771-294523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.131614539725916,
-      "end_time": 19.983195261827305,
-      "duration": 3.8515807221013896,
-      "start_frame": 258105,
-      "duration_frames": 61625,
-      "overlap": false,
-      "utterance_id": "3537-5704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5704.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 77559
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.474996630415404,
-      "end_time": 24.264283440938165,
-      "duration": 3.789286810522759,
-      "start_frame": 327599,
-      "duration_frames": 60628,
-      "overlap": false,
-      "utterance_id": "238-122530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/238-122530.flac |",
-      "real_speaker_id": "238",
-      "position_frames": 85429
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.00695373662964,
-      "end_time": 31.732614468612248,
-      "duration": 6.725660731982607,
-      "start_frame": 400111,
-      "duration_frames": 107610,
-      "overlap": false,
-      "utterance_id": "3537-5703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5703.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-      "start_time": 22.529263877993976
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/238/laugh/0023.wav",
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-      "speaker_id": "238"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3537/laugh/0049.wav",
-      "duration": 1.64,
-      "start_time": 4.0443560758414066,
-      "speaker_id": "3537"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8771/cough/0061.wav",
-      "duration": 0.84,
-      "start_time": 15.29932868207825,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3537/laugh/0104.wav",
-      "duration": 1.34,
-      "start_time": 17.638322344689175,
-      "speaker_id": "3537"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039308.json b/conversations/conv_039308.json
deleted file mode 100644
index e59432269b5bf51548095a718680ae377ee9b096..0000000000000000000000000000000000000000
--- a/conversations/conv_039308.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.75693253294508,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.393758840460728,
-      "duration": 5.393758840460728,
-      "start_frame": 0,
-      "duration_frames": 86300,
-      "overlap": false,
-      "utterance_id": "1132-138883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-138883.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.06227504770751,
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-      "overlap": false,
-      "utterance_id": "6088-34571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34571.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.538810648214671,
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-      "overlap": true,
-      "utterance_id": "1132-145024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-145024.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.785982255500254,
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-      "overlap": false,
-      "utterance_id": "6088-34571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34571.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 74624
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.16455706682271,
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-      "duration": 4.458105503239607,
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-      "overlap": false,
-      "utterance_id": "1132-138883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-138883.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 86300
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.852777510400276,
-      "end_time": 31.75693253294508,
-      "duration": 5.904155022544804,
-      "start_frame": 413644,
-      "duration_frames": 94466,
-      "overlap": false,
-      "utterance_id": "1132-145024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-145024.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 52322
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/432755.wav",
-      "duration": 0.2939909297052154,
-      "start_time": 15.106462283263681
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1132/cough/0101.wav",
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-      "speaker_id": "1132"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6088/laugh/0005.wav",
-      "duration": 1.12,
-      "start_time": 4.895518310124977,
-      "speaker_id": "6088"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6088/laugh/0126.wav",
-      "duration": 1.6513985277688061,
-      "start_time": 16.193614804284206,
-      "speaker_id": "6088"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1132/laugh/0028.wav",
-      "duration": 1.32,
-      "start_time": 28.834452471274954,
-      "speaker_id": "1132"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039315.json b/conversations/conv_039315.json
deleted file mode 100644
index 48998d0db8d758111f00224ee7f8498345af048d..0000000000000000000000000000000000000000
--- a/conversations/conv_039315.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1265-135636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.832204067782346,
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-      "start_frame": 77315,
-      "duration_frames": 71896,
-      "overlap": false,
-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 56602,
-      "overlap": false,
-      "utterance_id": "1265-135636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 64573
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.514460855435653,
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-      "duration": 4.995991742216969,
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-      "overlap": false,
-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 71896
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.62715934639376,
-      "end_time": 26.501453411195893,
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-      "overlap": false,
-      "utterance_id": "1265-135635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.615916207949127,
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-      "duration": 5.384083792050873,
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-      "overlap": false,
-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 151831
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-      "start_time": 0.9398914292814167
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-    {
-      "event_class": "Blender",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/laugh/0005.wav",
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-    },
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/laugh/0067.wav",
-      "duration": 1.16,
-      "start_time": 8.302852660513379,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6323/laugh/0075.wav",
-      "duration": 1.28,
-      "start_time": 18.694572992710714,
-      "speaker_id": "6323"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/laugh/0109.wav",
-      "duration": 0.7354528124506372,
-      "start_time": 18.890146662015763,
-      "speaker_id": "1265"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6323/laugh/0036.wav",
-      "duration": 1.42,
-      "start_time": 24.912708759354466,
-      "speaker_id": "6323"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039319.json b/conversations/conv_039319.json
deleted file mode 100644
index 7b3b2aa55b911d04c135b455bed0017a49d516ae..0000000000000000000000000000000000000000
--- a/conversations/conv_039319.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "end_time": 6.115062249306685,
-      "duration": 6.115062249306685,
-      "start_frame": 0,
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-      "utterance_id": "6294-86679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-86679.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.881816261155401,
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-      "utterance_id": "4262-14486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14486.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.759291422938382,
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-      "utterance_id": "6294-86679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-86679.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 97840
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14487.flac |",
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-      "speaker_id": "6294"
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\ No newline at end of file
diff --git a/conversations/conv_039323.json b/conversations/conv_039323.json
deleted file mode 100644
index 0f0a9e9148333c3a897840206e906c73bea88754..0000000000000000000000000000000000000000
--- a/conversations/conv_039323.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2762-142778.flac |",
-      "real_speaker_id": "2762",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "2762-160610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2762-160610.flac |",
-      "real_speaker_id": "2762",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.091967827386135,
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-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 69696
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.696396898440693,
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-      "duration": 6.663834220414087,
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-      "utterance_id": "6080-58025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58025.flac |",
-      "real_speaker_id": "6080",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.03325400905808,
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-      "duration": 2.96674599094192,
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-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 164963
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-      "event_class": "Cat",
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-      "duration": 1.16,
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-      "speaker_id": "6080"
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\ No newline at end of file
diff --git a/conversations/conv_039334.json b/conversations/conv_039334.json
deleted file mode 100644
index afcbe58d66150d61f51c95b04a43ce9e3ba4d30d..0000000000000000000000000000000000000000
--- a/conversations/conv_039334.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-124588.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "1224",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-      "speaker_id": "1224"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039335.json b/conversations/conv_039335.json
deleted file mode 100644
index e9dad06f2c94ec4a310a4fecd7d5ae6820a5f18d..0000000000000000000000000000000000000000
--- a/conversations/conv_039335.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-141272.flac |",
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-      "real_speaker_id": "5984",
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-      "real_speaker_id": "1653",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-113272.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039339.json b/conversations/conv_039339.json
deleted file mode 100644
index 55cc96dbf7b5c74aee7b8f87b022d8063bd1e594..0000000000000000000000000000000000000000
--- a/conversations/conv_039339.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-50960.flac |",
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-      "real_speaker_id": "6683",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.474625090727788,
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-      "utterance_id": "216-122451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/216-122451.flac |",
-      "real_speaker_id": "216",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.345270395409646,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-63841.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.398192912427675,
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-      "utterance_id": "6683-67218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-67218.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 130729
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6683/laugh/0097.wav",
-      "duration": 1.5958534993933229,
-      "start_time": 15.62082426324263,
-      "speaker_id": "6683"
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-      "event_class": "cough",
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-      "speaker_id": "6683"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039342.json b/conversations/conv_039342.json
deleted file mode 100644
index be72a9cfb114ac77c768b6d43de7a58b1149e196..0000000000000000000000000000000000000000
--- a/conversations/conv_039342.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.808627717603358,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.3507114937090705,
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-      "utterance_id": "5319-42637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-42637.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.732552187258523,
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-      "overlap": false,
-      "utterance_id": "5319-64075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-64075.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.392194351228834,
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-      "duration_frames": 110032,
-      "overlap": false,
-      "utterance_id": "6308-68359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
-      "real_speaker_id": "6308",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.800803739097965,
-      "end_time": 25.135515860109873,
-      "duration": 6.334712121011907,
-      "start_frame": 300812,
-      "duration_frames": 101355,
-      "overlap": false,
-      "utterance_id": "5319-64075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-64075.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 65119
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.518865080194207,
-      "end_time": 31.808627717603358,
-      "duration": 5.289762637409149,
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-      "duration_frames": 84636,
-      "overlap": false,
-      "utterance_id": "6308-68359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
-      "real_speaker_id": "6308",
-      "position_frames": 110032
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 23.123673469387754,
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_4.wav",
-      "duration": 0.2465986394557823,
-      "start_time": 1.6422752772570446
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "5319"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039349.json b/conversations/conv_039349.json
deleted file mode 100644
index e67c591ebb3f17134077f2c7754430d6407e1113..0000000000000000000000000000000000000000
--- a/conversations/conv_039349.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "38-121024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/38-121024.flac |",
-      "real_speaker_id": "38",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
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-      "position_frames": 0
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-      "utterance_id": "8534-216567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216567.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.25067849222021,
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-      "utterance_id": "1827-143625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 73822
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "38-121024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/38-121024.flac |",
-      "real_speaker_id": "38",
-      "position_frames": 84880
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 1.9349622307287007,
-      "start_frame": 481040,
-      "duration_frames": 30959,
-      "overlap": false,
-      "utterance_id": "1827-143625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1827-143625.flac |",
-      "real_speaker_id": "1827",
-      "position_frames": 170434
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "duration": 1.24,
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1827/cough/0018.wav",
-      "duration": 1.1431177938941166,
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-      "speaker_id": "1827"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039354.json b/conversations/conv_039354.json
deleted file mode 100644
index cba6d7e1162b0ce607c886308149c26e042573c0..0000000000000000000000000000000000000000
--- a/conversations/conv_039354.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "218-131206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 94423
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 21.982128733978566,
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-      "utterance_id": "218-131205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.25808258663489,
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-      "duration": 3.7419174133651083,
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-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
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-      "position_frames": 71239
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1187/laugh/0123.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "1187"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039358.json b/conversations/conv_039358.json
deleted file mode 100644
index 2140978f03d30a089f2496169f3103c36ab4340a..0000000000000000000000000000000000000000
--- a/conversations/conv_039358.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.706037198758512,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "78-368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-368.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5023",
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-    {
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-      "real_speaker_id": "5023",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039362.json b/conversations/conv_039362.json
deleted file mode 100644
index 1133f51ba304d6c5b12d591250bd19f89ecc6192..0000000000000000000000000000000000000000
--- a/conversations/conv_039362.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.174680237857075,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6865-95963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95963.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.7323867854024115,
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-      "utterance_id": "6865-95959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95959.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "4791-25379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25379.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.666610251380828,
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-      "utterance_id": "6865-95969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95969.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.710369784557244,
-      "end_time": 31.174680237857075,
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-      "duration_frames": 71428,
-      "overlap": true,
-      "utterance_id": "4791-25377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25377.flac |",
-      "real_speaker_id": "4791",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_039363.json b/conversations/conv_039363.json
deleted file mode 100644
index c66b87c9a3d15e9a71122ae34cbf239ecc6864d9..0000000000000000000000000000000000000000
--- a/conversations/conv_039363.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7026-86941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 76228
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-      "segment_id": "seg0003",
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-      "utterance_id": "7026-86943",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "1337-156963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1337-156963.flac |",
-      "real_speaker_id": "1337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.990106380182642,
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-      "overlap": false,
-      "utterance_id": "7026-86946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86946.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1337"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7026/laugh/0101.wav",
-      "duration": 0.777621580688534,
-      "start_time": 28.18707191296438,
-      "speaker_id": "7026"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039373.json b/conversations/conv_039373.json
deleted file mode 100644
index 9397b1aedb09efbdb7227b210c4d64e4c2960358..0000000000000000000000000000000000000000
--- a/conversations/conv_039373.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4948-28016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28016.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4563-26441.flac |",
-      "real_speaker_id": "4563",
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-      "real_speaker_id": "4948",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "4563",
-      "position_frames": 100712
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4948-28002",
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-      "real_speaker_id": "4948",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4563-26447.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4948/laugh/0016.wav",
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-      "speaker_id": "4948"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039374.json b/conversations/conv_039374.json
deleted file mode 100644
index 8f0cb65bd31258fbf90f1cca5558fab57b3007d5..0000000000000000000000000000000000000000
--- a/conversations/conv_039374.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.10616577923871,
-  "num_speakers": 2,
-  "overlap_rate": 0.5714285714285714,
-  "segments": [
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-      "utterance_id": "3947-13262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3947-13262.flac |",
-      "real_speaker_id": "3947",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_039378.json b/conversations/conv_039378.json
deleted file mode 100644
index e0a6622eed271427375978dc6b9daa085ee8bb5b..0000000000000000000000000000000000000000
--- a/conversations/conv_039378.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4741-27757.flac |",
-      "real_speaker_id": "4741",
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\ No newline at end of file
diff --git a/conversations/conv_039381.json b/conversations/conv_039381.json
deleted file mode 100644
index fc42b7f075e5476260f8e4a6ebf94d61473e7264..0000000000000000000000000000000000000000
--- a/conversations/conv_039381.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_039397.json b/conversations/conv_039397.json
deleted file mode 100644
index 17809f32ad3639a10c121d9cbb70e23c750881e1..0000000000000000000000000000000000000000
--- a/conversations/conv_039397.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
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-      "start_time": 3.036480715291799
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4263/cough/0176.wav",
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-      "start_time": 5.392180693789196,
-      "speaker_id": "4263"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/318/laugh/0098.wav",
-      "duration": 0.6057295694282973,
-      "start_time": 24.385756961438737,
-      "speaker_id": "318"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4263/laugh/0081.wav",
-      "duration": 0.7948313075275846,
-      "start_time": 28.57129981316877,
-      "speaker_id": "4263"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039401.json b/conversations/conv_039401.json
deleted file mode 100644
index 60933f2a8e696279f05daf104fd849886e801c8e..0000000000000000000000000000000000000000
--- a/conversations/conv_039401.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.5573887836223466,
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-      "overlap": false,
-      "utterance_id": "6332-64733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64733.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.9820719866808356,
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-      "duration": 5.966921885340243,
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-      "duration_frames": 95470,
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-      "utterance_id": "6332-64734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.21991408709455,
-      "end_time": 14.36064539862493,
-      "duration": 4.140731311530381,
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-      "duration_frames": 66251,
-      "overlap": false,
-      "utterance_id": "4226-12707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-12707.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.702556106019077,
-      "end_time": 18.793991527338072,
-      "duration": 4.091435421318996,
-      "start_frame": 235240,
-      "duration_frames": 65462,
-      "overlap": false,
-      "utterance_id": "3330-170956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3330-170956.flac |",
-      "real_speaker_id": "3330",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.150123810049266,
-      "end_time": 26.11932414036317,
-      "duration": 5.969200330313901,
-      "start_frame": 322401,
-      "duration_frames": 95507,
-      "overlap": false,
-      "utterance_id": "4226-185488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-185488.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.937135337304298,
-      "end_time": 32.0,
-      "duration": 5.062864662695702,
-      "start_frame": 430994,
-      "duration_frames": 81005,
-      "overlap": false,
-      "utterance_id": "6332-64734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 95470
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 16.561632653061224,
-      "start_time": 8.036571337763744
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79638.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6332/laugh/0029.wav",
-      "duration": 1.028754714232197,
-      "start_time": 0.07826810952873514,
-      "speaker_id": "6332"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039417.json b/conversations/conv_039417.json
deleted file mode 100644
index 8f56f60fe894fb29a19df6565ff2d6933b76cd27..0000000000000000000000000000000000000000
--- a/conversations/conv_039417.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.655662793354765,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.975001069867718,
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-      "start_frame": 0,
-      "duration_frames": 95600,
-      "overlap": false,
-      "utterance_id": "4837-302000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4837-302000.flac |",
-      "real_speaker_id": "4837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.1131024362577095,
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-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.67959909726212,
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-      "duration_frames": 101676,
-      "overlap": false,
-      "utterance_id": "441-128988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128988.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.942234730303973,
-      "end_time": 24.945456525954455,
-      "duration": 6.003221795650484,
-      "start_frame": 303075,
-      "duration_frames": 96051,
-      "overlap": false,
-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 85611
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.80790822945394,
-      "end_time": 31.655662793354765,
-      "duration": 5.847754563900825,
-      "start_frame": 412926,
-      "duration_frames": 93564,
-      "overlap": true,
-      "utterance_id": "441-128988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128988.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 101676
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
-      "duration": 19.061179138321997,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
-      "duration": 1.0443083900226757,
-      "start_time": 26.81727012326745
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_11.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1040/laugh/0020.wav",
-      "duration": 1.08,
-      "start_time": 6.54319983958615,
-      "speaker_id": "1040"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1040/laugh/0008.wav",
-      "duration": 1.52,
-      "start_time": 25.05434049436924,
-      "speaker_id": "1040"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039421.json b/conversations/conv_039421.json
deleted file mode 100644
index 2ddb1025e3cfcf675add894c2d8f340c4f2eb025..0000000000000000000000000000000000000000
--- a/conversations/conv_039421.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.42519444771113,
-  "num_speakers": 2,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "152-183930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.154269418352872,
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-      "utterance_id": "152-87733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-87733.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.665233409882655,
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-      "duration_frames": 91437,
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-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 74936
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "152-87733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-87733.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 53063
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6370-26876",
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-      "real_speaker_id": "6370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.484726249187414,
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-      "utterance_id": "152-183930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/152/laugh/0110.wav",
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-      "start_time": 29.19992913894767,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039426.json b/conversations/conv_039426.json
deleted file mode 100644
index ca12fe0d921b34ce0e032a1047a5191e553d9053..0000000000000000000000000000000000000000
--- a/conversations/conv_039426.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1235-135883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135883.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5133-80690",
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-      "real_speaker_id": "5133",
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-    {
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-      "event_class": "Running_water",
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-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5133/cough/0014.wav",
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-      "start_time": 14.659160677388638,
-      "speaker_id": "5133"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1235/laugh/0058.wav",
-      "duration": 1.0,
-      "start_time": 19.875384913528215,
-      "speaker_id": "1235"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039430.json b/conversations/conv_039430.json
deleted file mode 100644
index dfcfadc0fcb9771866d5c800532c0215b373e6c4..0000000000000000000000000000000000000000
--- a/conversations/conv_039430.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.756656718578137,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7113-86041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.152912130847811,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 0
-    },
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-      "overlap": false,
-      "utterance_id": "3370-756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-756.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.936027533114924,
-      "end_time": 24.49790093991208,
-      "duration": 4.5618734067971545,
-      "start_frame": 318976,
-      "duration_frames": 72989,
-      "overlap": false,
-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 94531
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.040184107666562,
-      "end_time": 30.486193314728524,
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-      "duration_frames": 87136,
-      "overlap": false,
-      "utterance_id": "3370-756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-756.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 103641
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.769777780821187,
-      "end_time": 32.0,
-      "duration": 1.2302222191788132,
-      "start_frame": 492316,
-      "duration_frames": 19683,
-      "overlap": false,
-      "utterance_id": "7113-86041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 92106
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 30.506298628418286,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 30.77754204601797,
-      "speaker_id": "7113"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039437.json b/conversations/conv_039437.json
deleted file mode 100644
index 5a5dc86d97ebdb6b73ca9e8a63d9fb00bd48c5bc..0000000000000000000000000000000000000000
--- a/conversations/conv_039437.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.63482526447997,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "296-142727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-142727.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.168621398200495,
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-      "position_frames": 0
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-      "utterance_id": "296-141721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.822890649982785,
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-      "utterance_id": "7912-105670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7912-105670.flac |",
-      "real_speaker_id": "7912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.928106408031937,
-      "end_time": 31.63482526447997,
-      "duration": 5.706718856448033,
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-      "duration_frames": 91307,
-      "overlap": false,
-      "utterance_id": "296-141721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 109823
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "7912"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039440.json b/conversations/conv_039440.json
deleted file mode 100644
index 92496693a1018229a27f95f8915a996973ce269b..0000000000000000000000000000000000000000
--- a/conversations/conv_039440.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "5271-34505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34505.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "5724-13364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34506.flac |",
-      "real_speaker_id": "5271",
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-    {
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-      "utterance_id": "5724-13364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 110880
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.62193330057155,
-      "end_time": 32.0,
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-      "duration_frames": 70049,
-      "overlap": false,
-      "utterance_id": "548-126961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 67845
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/548/laugh/0060.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5724/laugh/0007.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5724/cough/0052.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5724/cough/0087.wav",
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-      "speaker_id": "5724"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039456.json b/conversations/conv_039456.json
deleted file mode 100644
index 6ff5188c1bf154c664a076eec0eb1f37385a5621..0000000000000000000000000000000000000000
--- a/conversations/conv_039456.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3009-10328",
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-      "real_speaker_id": "3009",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6668-34648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34648.flac |",
-      "real_speaker_id": "6668",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "speaker_id": "3009"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039460.json b/conversations/conv_039460.json
deleted file mode 100644
index fe6804ec11d5cb1c714988f845dccd239d0a4767..0000000000000000000000000000000000000000
--- a/conversations/conv_039460.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 101748
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.053273010171072,
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-      "utterance_id": "7585-96245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 215466
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_039461.json b/conversations/conv_039461.json
deleted file mode 100644
index 19fdf5bdadf098b7694b8fbee2f8aa7c02e5481f..0000000000000000000000000000000000000000
--- a/conversations/conv_039461.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1161",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7001-12337.flac |",
-      "real_speaker_id": "7001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039467.json b/conversations/conv_039467.json
deleted file mode 100644
index 829e66dc257f61ec56735fe66eab50ae44481260..0000000000000000000000000000000000000000
--- a/conversations/conv_039467.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "utterance_id": "1165-135220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135220.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.750012787779378,
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-      "duration_frames": 56425,
-      "overlap": false,
-      "utterance_id": "7995-280250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-280250.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135216.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1165",
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-      "real_speaker_id": "7995",
-      "position_frames": 56425
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-  "foreground_events": [
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-      "speaker_id": "1165"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7995/laugh/0043.wav",
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-      "speaker_id": "7995"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039471.json b/conversations/conv_039471.json
deleted file mode 100644
index f5b5459fb86b5a2704017fd40157d78c84a815c4..0000000000000000000000000000000000000000
--- a/conversations/conv_039471.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6111-59777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6111-59777.flac |",
-      "real_speaker_id": "6111",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.592747577137715,
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-      "utterance_id": "6111-59791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6111-59791.flac |",
-      "real_speaker_id": "6111",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.801659302171796,
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-      "utterance_id": "4078-7619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 164631
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/laugh/0074.wav",
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-      "speaker_id": "4078"
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6111/laugh/0090.wav",
-      "duration": 0.56322315559871,
-      "start_time": 29.380353217453308,
-      "speaker_id": "6111"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/laugh/0037.wav",
-      "duration": 1.2,
-      "start_time": 28.566061456856723,
-      "speaker_id": "4078"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039476.json b/conversations/conv_039476.json
deleted file mode 100644
index b2ab0b716273709e99a28abd8520c61e1a05d80b..0000000000000000000000000000000000000000
--- a/conversations/conv_039476.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.604013604693696,
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-      "overlap": false,
-      "utterance_id": "7713-106738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106738.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.002408681525677,
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-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106729.flac |",
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-      "position_frames": 0
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-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 68267
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 79801
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.831980058446195,
-      "end_time": 32.0,
-      "duration": 2.168019941553805,
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-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
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-      "position_frames": 123083
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039483.json b/conversations/conv_039483.json
deleted file mode 100644
index c26e8aa1788baad31a6496833663930ee58406a9..0000000000000000000000000000000000000000
--- a/conversations/conv_039483.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.465100394477833,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3003-12539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-12539.flac |",
-      "real_speaker_id": "3003",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 6.113929277342904,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "3003-14274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-14274.flac |",
-      "real_speaker_id": "3003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.18934021425393,
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-      "duration": 6.386559176878486,
-      "start_frame": 275029,
-      "duration_frames": 102184,
-      "overlap": false,
-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 99910
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.50293311001675,
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-      "utterance_id": "2893-139310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139310.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039488.json b/conversations/conv_039488.json
deleted file mode 100644
index 10d18349d3fcb3eec7f05a58b88b6b0313d293bf..0000000000000000000000000000000000000000
--- a/conversations/conv_039488.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.706094377084726,
-      "duration": 5.706094377084726,
-      "start_frame": 0,
-      "duration_frames": 91297,
-      "overlap": false,
-      "utterance_id": "3072-155949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155949.flac |",
-      "real_speaker_id": "3072",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.90740643701131,
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-      "utterance_id": "3072-155948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155948.flac |",
-      "real_speaker_id": "3072",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 56045,
-      "overlap": false,
-      "utterance_id": "5022-29405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29405.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.521667807789555,
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-      "position_frames": 94202
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-    {
-      "segment_id": "seg0004",
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-      "overlap": true,
-      "utterance_id": "5022-29411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29411.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.027125984991944,
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-      "duration": 3.972874015008056,
-      "start_frame": 448434,
-      "duration_frames": 63565,
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-      "utterance_id": "3072-155948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155948.flac |",
-      "real_speaker_id": "3072",
-      "position_frames": 151099
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5022/cough/0084.wav",
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-      "speaker_id": "5022"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039495.json b/conversations/conv_039495.json
deleted file mode 100644
index 20191fd2a60e37abce25c79de67e6d57ab586f6e..0000000000000000000000000000000000000000
--- a/conversations/conv_039495.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.497963977190157,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.275525854640266,
-      "duration": 6.275525854640266,
-      "start_frame": 0,
-      "duration_frames": 100408,
-      "overlap": false,
-      "utterance_id": "3546-175390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.317576979094421,
-      "end_time": 13.234430169255702,
-      "duration": 5.916853190161282,
-      "start_frame": 117081,
-      "duration_frames": 94669,
-      "overlap": false,
-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.614063389719536,
-      "end_time": 19.162529159141382,
-      "duration": 6.548465769421846,
-      "start_frame": 201825,
-      "duration_frames": 104775,
-      "overlap": true,
-      "utterance_id": "3546-175390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 100408
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.090131830062443,
-      "end_time": 25.735975992863253,
-      "duration": 4.645844162800809,
-      "start_frame": 337442,
-      "duration_frames": 74333,
-      "overlap": false,
-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 94669
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.30940305222901,
-      "end_time": 31.497963977190157,
-      "duration": 5.188560924961148,
-      "start_frame": 420950,
-      "duration_frames": 83016,
-      "overlap": false,
-      "utterance_id": "7717-105405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7717-105405.flac |",
-      "real_speaker_id": "7717",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
-      "start_time": 6.664306260939691
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
-      "duration": 0.16310657596371883,
-      "start_time": 14.89128968814177
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3546/laugh/0106.wav",
-      "duration": 1.24,
-      "start_time": 15.2525249612514,
-      "speaker_id": "3546"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3546/cough/0076.wav",
-      "duration": 1.0171633317255584,
-      "start_time": 11.481655203675935,
-      "speaker_id": "3546"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039499.json b/conversations/conv_039499.json
deleted file mode 100644
index 19d5232d3b7b641889a0a9123e0d27dacca1faa2..0000000000000000000000000000000000000000
--- a/conversations/conv_039499.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.148840098983099,
-      "duration": 4.148840098983099,
-      "start_frame": 0,
-      "duration_frames": 66381,
-      "overlap": false,
-      "utterance_id": "4108-2777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2777.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.6142624802090637,
-      "end_time": 7.113306521809548,
-      "duration": 3.4990440416004844,
-      "start_frame": 57828,
-      "duration_frames": 55984,
-      "overlap": true,
-      "utterance_id": "1924-132574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132574.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.716395330929982,
-      "end_time": 14.855502709363924,
-      "duration": 6.139107378433941,
-      "start_frame": 139462,
-      "duration_frames": 98225,
-      "overlap": false,
-      "utterance_id": "3394-7597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-7597.flac |",
-      "real_speaker_id": "3394",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.479266459000549,
-      "end_time": 20.440737262880834,
-      "duration": 4.961470803880284,
-      "start_frame": 247668,
-      "duration_frames": 79383,
-      "overlap": false,
-      "utterance_id": "1924-132574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132574.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 55984
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.47452025730894,
-      "end_time": 26.471108137232758,
-      "duration": 4.99658787992382,
-      "start_frame": 343592,
-      "duration_frames": 79945,
-      "overlap": false,
-      "utterance_id": "3394-7597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-7597.flac |",
-      "real_speaker_id": "3394",
-      "position_frames": 98225
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.360170142939264,
-      "end_time": 32.0,
-      "duration": 4.639829857060736,
-      "start_frame": 437762,
-      "duration_frames": 74237,
-      "overlap": false,
-      "utterance_id": "1924-132576",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132576.flac |",
-      "real_speaker_id": "1924",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
-      "duration": 0.31501133786848073,
-      "start_time": 11.47246970275191
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4108/laugh/0088.wav",
-      "duration": 1.36,
-      "start_time": 4.1815346339438735,
-      "speaker_id": "4108"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4108/cough/0007.wav",
-      "duration": 0.5693066092396446,
-      "start_time": 0,
-      "speaker_id": "4108"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1924/laugh/0039.wav",
-      "duration": 0.6783690897259933,
-      "start_time": 4.05414220709286,
-      "speaker_id": "1924"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3394/laugh/0008.wav",
-      "duration": 1.1392361013314374,
-      "start_time": 7.4273693929671465,
-      "speaker_id": "3394"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3394/laugh/0014.wav",
-      "duration": 0.9213717515596818,
-      "start_time": 20.298762311132958,
-      "speaker_id": "3394"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1924/laugh/0073.wav",
-      "duration": 1.7171353628865493,
-      "start_time": 30.282864637113452,
-      "speaker_id": "1924"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1924/cough/0006.wav",
-      "duration": 1.12,
-      "start_time": 26.218232360448322,
-      "speaker_id": "1924"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039505.json b/conversations/conv_039505.json
deleted file mode 100644
index 2d9dc0209b181a188b0cc45ae97dfa1836076f52..0000000000000000000000000000000000000000
--- a/conversations/conv_039505.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.30506214388719,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.398639814159617,
-      "duration": 6.398639814159617,
-      "start_frame": 0,
-      "duration_frames": 102378,
-      "overlap": false,
-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.701825621521019,
-      "end_time": 13.482323630377486,
-      "duration": 6.780498008856468,
-      "start_frame": 107229,
-      "duration_frames": 108487,
-      "overlap": false,
-      "utterance_id": "820-123135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123135.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.119762555939804,
-      "end_time": 18.40353245360584,
-      "duration": 4.283769897666035,
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-      "duration_frames": 68540,
-      "overlap": false,
-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 102378
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.978049137369545,
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-      "duration": 4.568774326432287,
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-      "duration_frames": 73100,
-      "overlap": false,
-      "utterance_id": "820-123133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.91067148151373,
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-      "overlap": false,
-      "utterance_id": "2256-137597",
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-      "real_speaker_id": "2256",
-      "position_frames": 170918
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.4855506878757545,
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-      "duration_frames": 55768,
-      "overlap": true,
-      "utterance_id": "820-123133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 73100
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.2221886141347578,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/820/cough/0027.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.8034074789835701,
-      "start_time": 23.60703954126092,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2256/laugh/0005.wav",
-      "duration": 1.04,
-      "start_time": 26.33737531107269,
-      "speaker_id": "2256"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/820/laugh/0089.wav",
-      "duration": 1.3412700568757656,
-      "start_time": 26.319097098396636,
-      "speaker_id": "820"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/820/cough/0025.wav",
-      "duration": 1.1781675203410897,
-      "start_time": 30.82183247965891,
-      "speaker_id": "820"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039508.json b/conversations/conv_039508.json
deleted file mode 100644
index fe78fdc9ff17dfbf5022d1fac9f6c357a3219d33..0000000000000000000000000000000000000000
--- a/conversations/conv_039508.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.288450603872786,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "3681-111567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-111567.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53048.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3681-96617",
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-    {
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-      "real_speaker_id": "5910",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 105180
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-  "paralinguistic_events": [
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-      "duration": 1.0,
-      "start_time": 17.399464964490676,
-      "speaker_id": "3681"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5910/laugh/0081.wav",
-      "duration": 0.8302947767685225,
-      "start_time": 24.132990263711207,
-      "speaker_id": "5910"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039509.json b/conversations/conv_039509.json
deleted file mode 100644
index 9084d0b83a343c9b770e2607d2db7759c081561a..0000000000000000000000000000000000000000
--- a/conversations/conv_039509.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.1329522260802847,
-      "duration": 3.1329522260802847,
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-      "duration_frames": 50127,
-      "overlap": false,
-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.325016358481394,
-      "end_time": 9.058504506118329,
-      "duration": 4.733488147636935,
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-      "duration_frames": 75735,
-      "overlap": false,
-      "utterance_id": "5012-31097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31097.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.277364911157544,
-      "end_time": 15.36560826684867,
-      "duration": 5.088243355691125,
-      "start_frame": 164437,
-      "duration_frames": 81411,
-      "overlap": false,
-      "utterance_id": "6025-58760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58760.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.17430371011702,
-      "end_time": 21.09428334533787,
-      "duration": 4.919979635220853,
-      "start_frame": 258788,
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-      "overlap": false,
-      "utterance_id": "1349-135892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.759798131137476,
-      "end_time": 25.794042348010148,
-      "duration": 5.034244216872673,
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-      "duration_frames": 80547,
-      "overlap": true,
-      "utterance_id": "6025-58760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58760.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 81411
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.38863189148605,
-      "end_time": 32.0,
-      "duration": 4.61136810851395,
-      "start_frame": 438218,
-      "duration_frames": 73781,
-      "overlap": false,
-      "utterance_id": "6025-58759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58759.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.3453508644460537,
-      "start_time": 19.975683759874396
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1349/laugh/0084.wav",
-      "duration": 1.72,
-      "start_time": 0,
-      "speaker_id": "1349"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1349/cough/0067.wav",
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-      "speaker_id": "1349"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 9.322116826615085,
-      "speaker_id": "5012"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.8022155590136648,
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-      "speaker_id": "6025"
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-      "event_class": "cough",
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-      "duration": 0.4917724410578549,
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-      "speaker_id": "1349"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6025/laugh/0065.wav",
-      "duration": 1.2205176111288703,
-      "start_time": 26.11661156351745,
-      "speaker_id": "6025"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039513.json b/conversations/conv_039513.json
deleted file mode 100644
index 7da65ba7c7163aea55869f81778f2ea57f897884..0000000000000000000000000000000000000000
--- a/conversations/conv_039513.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.11649012396572,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.453996371609869,
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-      "duration_frames": 87263,
-      "overlap": false,
-      "utterance_id": "8718-295445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295445.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.818653591670361,
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-      "overlap": false,
-      "utterance_id": "227-126539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/227-126539.flac |",
-      "real_speaker_id": "227",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.584821616613826,
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-      "duration_frames": 86478,
-      "overlap": true,
-      "utterance_id": "3526-176651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3526-176651.flac |",
-      "real_speaker_id": "3526",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.568047222253405,
-      "end_time": 22.695284789292568,
-      "duration": 5.127237567039164,
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-      "duration_frames": 82035,
-      "overlap": true,
-      "utterance_id": "3526-175658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3526-175658.flac |",
-      "real_speaker_id": "3526",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.241495788217176,
-      "end_time": 31.11649012396572,
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-      "overlap": false,
-      "utterance_id": "227-129974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/227-129974.flac |",
-      "real_speaker_id": "227",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "start_time": 1.8528508660501268
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/227/laugh/0023.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/227/laugh/0062.wav",
-      "duration": 1.04,
-      "start_time": 23.11373703014629,
-      "speaker_id": "227"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039522.json b/conversations/conv_039522.json
deleted file mode 100644
index 2020820ae2bc77edc729b724af5bea5ab57bb8ec..0000000000000000000000000000000000000000
--- a/conversations/conv_039522.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-101836.flac |",
-      "real_speaker_id": "4848",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 86389
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282380.flac |",
-      "real_speaker_id": "9000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.820238279044553,
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-      "duration": 4.3694101767390565,
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-      "overlap": false,
-      "utterance_id": "4848-101836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-101836.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 103585
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.4465236689753596,
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-      "utterance_id": "9000-282381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282381.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/9000/laugh/0086.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039524.json b/conversations/conv_039524.json
deleted file mode 100644
index 2d2f82c0eac3e35d8cf19654a09403cc60c9f7cf..0000000000000000000000000000000000000000
--- a/conversations/conv_039524.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.958773186948461,
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-      "utterance_id": "6747-76101",
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-      "real_speaker_id": "6747",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
-    {
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-      "speaker_id": "6747"
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 27.010493912442612,
-      "speaker_id": "5860"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6747/laugh/0087.wav",
-      "duration": 1.5,
-      "start_time": 30.5,
-      "speaker_id": "6747"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6747/cough/0096.wav",
-      "duration": 1.0769442991223903,
-      "start_time": 25.892550005594767,
-      "speaker_id": "6747"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039525.json b/conversations/conv_039525.json
deleted file mode 100644
index 09e29a5f6e03c6acb289ecd481f97237d44f8558..0000000000000000000000000000000000000000
--- a/conversations/conv_039525.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.752236322823814,
-      "duration": 3.752236322823814,
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-      "overlap": false,
-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.357706365613641,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26563.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
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-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 60035
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "start_frame": 210741,
-      "duration_frames": 53473,
-      "overlap": false,
-      "utterance_id": "667-107247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.48382054593638,
-      "end_time": 21.710576989910635,
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-      "start_frame": 279741,
-      "duration_frames": 67628,
-      "overlap": false,
-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 126864
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.116559496426554,
-      "end_time": 28.266628391931732,
-      "duration": 6.1500688955051785,
-      "start_frame": 353864,
-      "duration_frames": 98401,
-      "overlap": false,
-      "utterance_id": "4979-26551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26551.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.86202386298277,
-      "end_time": 32.0,
-      "duration": 3.1379761370172297,
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-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 194492
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "start_time": 12.304067685669608,
-      "speaker_id": "8544"
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 0.8029130381753085,
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-      "speaker_id": "8544"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039529.json b/conversations/conv_039529.json
deleted file mode 100644
index 35edd396f3f36ff35d5265a7a8d3ae0b8037ef61..0000000000000000000000000000000000000000
--- a/conversations/conv_039529.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "815-130105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130105.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.200656965912997,
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-      "utterance_id": "4680-16041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16041.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "duration_frames": 57302,
-      "overlap": false,
-      "utterance_id": "6300-39661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.087087862415878,
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-      "overlap": false,
-      "utterance_id": "4680-16026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16026.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.673066329335235,
-      "end_time": 27.050932364032153,
-      "duration": 5.377866034696917,
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-      "overlap": false,
-      "utterance_id": "6300-39661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 57302
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.654363816022702,
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-      "duration": 4.345636183977298,
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-      "duration_frames": 69530,
-      "overlap": false,
-      "utterance_id": "815-130105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/815-130105.flac |",
-      "real_speaker_id": "815",
-      "position_frames": 92530
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
-      "duration": 4.425237267823857,
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 15.772228527759513,
-      "speaker_id": "6300"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039533.json b/conversations/conv_039533.json
deleted file mode 100644
index 8da11e65c43409da6128687af95024b9727dae88..0000000000000000000000000000000000000000
--- a/conversations/conv_039533.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8172-281518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281518.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.429994146332796,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-15255.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.063847408669318,
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-      "utterance_id": "167-68704",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-68704.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 83537
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 54923,
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-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 169342
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-    {
-      "event_class": "Running_water",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/167/laugh/0014.wav",
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4042/cough/0109.wav",
-      "duration": 1.04,
-      "start_time": 25.1972518390875,
-      "speaker_id": "4042"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039534.json b/conversations/conv_039534.json
deleted file mode 100644
index 9f94177b3934832f0568b6955917eee467d1c0e1..0000000000000000000000000000000000000000
--- a/conversations/conv_039534.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.15265591932794,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.0286702809399015,
-      "duration": 6.0286702809399015,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1874-89898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-89898.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.001151857507504,
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-      "utterance_id": "1224-121064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1224-121064.flac |",
-      "real_speaker_id": "1224",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1224-121064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1224-121064.flac |",
-      "real_speaker_id": "1224",
-      "position_frames": 100265
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "1224-121064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1224-121064.flac |",
-      "real_speaker_id": "1224",
-      "position_frames": 265464
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-      "speaker_id": "1874"
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-      "duration": 1.24,
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-      "speaker_id": "1224"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1224/laugh/0070.wav",
-      "duration": 1.1018351153026582,
-      "start_time": 27.30094510745685,
-      "speaker_id": "1224"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039544.json b/conversations/conv_039544.json
deleted file mode 100644
index dd143606e4965b139da9980bf92101ce04a5ec33..0000000000000000000000000000000000000000
--- a/conversations/conv_039544.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.89573534033252,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3271-169289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.250902257435932,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95963.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "3271-169289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 50938
-    },
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-      "utterance_id": "4705-94462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94462.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.103008298984477,
-      "end_time": 26.01989589727879,
-      "duration": 5.916887598294312,
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-      "duration_frames": 94670,
-      "overlap": false,
-      "utterance_id": "3271-169289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 112447
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.180824204077577,
-      "end_time": 31.89573534033252,
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-      "utterance_id": "4705-94462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94462.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 73010
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039548.json b/conversations/conv_039548.json
deleted file mode 100644
index 9592a09a06e277e01e8922673e9d13ed23a9149c..0000000000000000000000000000000000000000
--- a/conversations/conv_039548.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "948-132705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132705.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132707.flac |",
-      "real_speaker_id": "948",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-274557.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15045.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132705.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 89863
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 2.4498449137629024,
-      "start_frame": 472802,
-      "duration_frames": 39197,
-      "overlap": false,
-      "utterance_id": "8466-285142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2911/laugh/0092.wav",
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-      "speaker_id": "2911"
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-      "duration": 0.7055074662485223,
-      "start_time": 20.624586670875892,
-      "speaker_id": "2911"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039552.json b/conversations/conv_039552.json
deleted file mode 100644
index 864ce225de257ff124cac2e74e299ea705f34eb9..0000000000000000000000000000000000000000
--- a/conversations/conv_039552.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 51329,
-      "overlap": false,
-      "utterance_id": "8142-110520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-110520.flac |",
-      "real_speaker_id": "8142",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.6028051310647777,
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-      "start_frame": 57644,
-      "duration_frames": 108252,
-      "overlap": false,
-      "utterance_id": "6258-49755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
-      "real_speaker_id": "6258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.374491894580906,
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-      "duration_frames": 66725,
-      "overlap": false,
-      "utterance_id": "8142-3966",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-3966.flac |",
-      "real_speaker_id": "8142",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.06706300547053,
-      "end_time": 21.075087973804635,
-      "duration": 5.008024968334103,
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-      "overlap": false,
-      "utterance_id": "6258-49755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
-      "real_speaker_id": "6258",
-      "position_frames": 108252
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.55293054915286,
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-      "utterance_id": "4078-76853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-76853.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.349967434868933,
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-      "duration": 3.107204808260772,
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-      "utterance_id": "6258-49755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6258-49755.flac |",
-      "real_speaker_id": "6258",
-      "position_frames": 188380
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.49597247309215,
-      "end_time": 32.0,
-      "duration": 1.5040275269078514,
-      "start_frame": 487935,
-      "duration_frames": 24064,
-      "overlap": false,
-      "utterance_id": "4078-76853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-76853.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 66660
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/cough/0082.wav",
-      "duration": 1.0509538264227556,
-      "start_time": 20.386064239392944,
-      "speaker_id": "4078"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6258/laugh/0083.wav",
-      "duration": 0.5641018098921402,
-      "start_time": 29.705258826923384,
-      "speaker_id": "6258"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/laugh/0033.wav",
-      "duration": 0.7736515773793633,
-      "start_time": 31.226348422620635,
-      "speaker_id": "4078"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039563.json b/conversations/conv_039563.json
deleted file mode 100644
index c3462c339df019605f26a0d833e30c60c2c2321d..0000000000000000000000000000000000000000
--- a/conversations/conv_039563.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.97880528017537,
-      "duration": 5.97880528017537,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3088-5438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5438.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.108128413238517,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5436.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5438.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 95660
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.234917188295743,
-      "end_time": 26.97626570368888,
-      "duration": 4.741348515393137,
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-      "duration_frames": 75861,
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-      "utterance_id": "1334-135589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1334-135589.flac |",
-      "real_speaker_id": "1334",
-      "position_frames": 84699
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.563520307954246,
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-      "duration": 4.436479692045754,
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-      "utterance_id": "3088-5441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5441.flac |",
-      "real_speaker_id": "3088",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_18.wav",
-      "duration": 0.5649433106575964,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3088/laugh/0064.wav",
-      "duration": 1.2777837761503186,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3088/cough/0084.wav",
-      "duration": 0.530153397521222,
-      "start_time": 15.052490505327448,
-      "speaker_id": "3088"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1334/cough/0096.wav",
-      "duration": 1.0,
-      "start_time": 21.14944428301673,
-      "speaker_id": "1334"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039564.json b/conversations/conv_039564.json
deleted file mode 100644
index 38fe8349d295949d8cc70913ca4c196c3e8cadab..0000000000000000000000000000000000000000
--- a/conversations/conv_039564.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7197134698276435,
-      "duration": 3.7197134698276435,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5076-61727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-61727.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.17660613501801,
-      "end_time": 6.9600685475744735,
-      "duration": 3.7834624125564633,
-      "start_frame": 50825,
-      "duration_frames": 60535,
-      "overlap": true,
-      "utterance_id": "2526-156073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156073.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.017923305817803,
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-      "duration": 3.776925813329835,
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-      "overlap": false,
-      "utterance_id": "5076-284283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-284283.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "7277-105388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-105388.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 18.80368409114473,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156076.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.007414014850543,
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-      "utterance_id": "7277-106404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106404.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.70644001206624,
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-      "duration": 3.2935599879337616,
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-      "utterance_id": "5076-61727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-61727.flac |",
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-      "position_frames": 59515
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "Blender",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5076/laugh/0062.wav",
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-      "start_time": 29.008975319437333,
-      "speaker_id": "5076"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039568.json b/conversations/conv_039568.json
deleted file mode 100644
index e4c848b7be25d23b4db200627357ff2e1ba3766b..0000000000000000000000000000000000000000
--- a/conversations/conv_039568.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5906-52158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-52158.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.043702505222688,
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-      "utterance_id": "7561-258992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "5906-59283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-59283.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.218006942180743,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3105-163726.flac |",
-      "real_speaker_id": "3105",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5906-59283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-59283.flac |",
-      "real_speaker_id": "5906",
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-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 2.721127538378685,
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-      "duration_frames": 43538,
-      "overlap": false,
-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
-      "duration": 16.372581569682158,
-      "start_time": 6.781507759952474
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5906/laugh/0149.wav",
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-      "start_time": 0,
-      "speaker_id": "5906"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5906/cough/0115.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/laugh/0026.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5906/laugh/0081.wav",
-      "duration": 1.0,
-      "start_time": 10.079751661144389,
-      "speaker_id": "5906"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3105/laugh/0051.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/cough/0033.wav",
-      "duration": 0.88,
-      "start_time": 28.390010718149274,
-      "speaker_id": "7561"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039572.json b/conversations/conv_039572.json
deleted file mode 100644
index e24d0822d50d9dc31dee6715e133744dfbbfcb42..0000000000000000000000000000000000000000
--- a/conversations/conv_039572.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "duration": 5.995513045279528,
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-      "utterance_id": "2063-148526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2063-148526.flac |",
-      "real_speaker_id": "2063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
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-    {
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-      "utterance_id": "3571-173556",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 27.963500408603032,
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-      "utterance_id": "1054-143005",
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-      "position_frames": 156480
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "start_time": 6.199420154540684,
-      "speaker_id": "2063"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039575.json b/conversations/conv_039575.json
deleted file mode 100644
index eb6a107c707f0ae08e0cc93e8b7994de5b6738d9..0000000000000000000000000000000000000000
--- a/conversations/conv_039575.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.403162865494324,
-      "duration": 5.403162865494324,
-      "start_frame": 0,
-      "duration_frames": 86450,
-      "overlap": false,
-      "utterance_id": "2272-152262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152262.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.085217298066691,
-      "end_time": 10.188357416630915,
-      "duration": 4.103140118564223,
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-      "duration_frames": 65650,
-      "overlap": false,
-      "utterance_id": "55-121069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.104800511486872,
-      "end_time": 15.445989329671177,
-      "duration": 4.341188818184305,
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-      "duration_frames": 69459,
-      "overlap": false,
-      "utterance_id": "2272-152262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152262.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 86450
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.163824572153047,
-      "end_time": 19.443197310221493,
-      "duration": 3.2793727380684463,
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-      "overlap": false,
-      "utterance_id": "55-121068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121068.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.188119315309926,
-      "end_time": 24.63339289818628,
-      "duration": 4.445273582876353,
-      "start_frame": 323009,
-      "duration_frames": 71124,
-      "overlap": false,
-      "utterance_id": "2272-152267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152267.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.196368020934173,
-      "end_time": 30.798761190735206,
-      "duration": 5.602393169801034,
-      "start_frame": 403141,
-      "duration_frames": 89638,
-      "overlap": false,
-      "utterance_id": "55-121069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 65650
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.590876805530375,
-      "end_time": 32.0,
-      "duration": 0.4091231944696254,
-      "start_frame": 505454,
-      "duration_frames": 6545,
-      "overlap": false,
-      "utterance_id": "4546-16781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
-      "start_time": 8.768200081879538
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
-      "duration": 0.14183673469387756,
-      "start_time": 26.8285359887125
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4546/laugh/0049.wav",
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-      "start_time": 30.967742717015682,
-      "speaker_id": "4546"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4546/cough/0074.wav",
-      "duration": 0.8835168479359377,
-      "start_time": 31.116483152064063,
-      "speaker_id": "4546"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039587.json b/conversations/conv_039587.json
deleted file mode 100644
index 75c706491444d97c73384e92cc68499a98db6843..0000000000000000000000000000000000000000
--- a/conversations/conv_039587.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.134147116677813,
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-      "overlap": false,
-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.61399299581743,
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-      "overlap": false,
-      "utterance_id": "8197-278199",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278199.flac |",
-      "real_speaker_id": "8197",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.962922909022048,
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-      "overlap": false,
-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 98146
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.218945996552414,
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-      "start_frame": 275503,
-      "duration_frames": 93436,
-      "overlap": false,
-      "utterance_id": "3851-9210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 178200
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.709746540633713,
-      "end_time": 29.727155915631062,
-      "duration": 6.0174093749973485,
-      "start_frame": 379355,
-      "duration_frames": 96278,
-      "overlap": false,
-      "utterance_id": "1160-139717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1160-139717.flac |",
-      "real_speaker_id": "1160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.54684293083978,
-      "end_time": 32.0,
-      "duration": 1.4531570691602198,
-      "start_frame": 488749,
-      "duration_frames": 23250,
-      "overlap": false,
-      "utterance_id": "8197-278218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278218.flac |",
-      "real_speaker_id": "8197",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "start_time": 7.294253966082444
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
-      "duration": 1.7548299319727891,
-      "start_time": 3.9828506141393865
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3851/cough/0081.wav",
-      "duration": 1.0523385192726895,
-      "start_time": 15.037748550685224,
-      "speaker_id": "3851"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1160/laugh/0045.wav",
-      "duration": 1.2,
-      "start_time": 24.09636539038558,
-      "speaker_id": "1160"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039591.json b/conversations/conv_039591.json
deleted file mode 100644
index 13c30072c64903e3e30c71f5d75f23e17351339c..0000000000000000000000000000000000000000
--- a/conversations/conv_039591.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.532539896747195,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7691-108625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-108625.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.167233698123414,
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-      "utterance_id": "1235-135884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135884.flac |",
-      "real_speaker_id": "1235",
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-    {
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-      "utterance_id": "2541-185493",
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-      "real_speaker_id": "2541",
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-    {
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-      "real_speaker_id": "7691",
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-    {
-      "segment_id": "seg0004",
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-      "overlap": true,
-      "utterance_id": "2541-159352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2541-159352.flac |",
-      "real_speaker_id": "2541",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "1235",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "2541-135246",
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-      "real_speaker_id": "2541",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2541/cough/0018.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2541/cough/0024.wav",
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-      "start_time": 18.91278899366311,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1235/laugh/0112.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1235/cough/0107.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2541/laugh/0126.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "2541"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039600.json b/conversations/conv_039600.json
deleted file mode 100644
index b4e4ceb92169c6e78ca41fc644b270997dfdb16b..0000000000000000000000000000000000000000
--- a/conversations/conv_039600.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6459-70120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70120.flac |",
-      "real_speaker_id": "6459",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "6459-77766",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "512",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70128.flac |",
-      "real_speaker_id": "6459",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-66371.flac |",
-      "real_speaker_id": "6535",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039616.json b/conversations/conv_039616.json
deleted file mode 100644
index 9c15c24298688c2f0dd878526c5e6b6f3ae774ba..0000000000000000000000000000000000000000
--- a/conversations/conv_039616.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.887838360533767,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8430-172387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172387.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172388.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 15.821297521203741,
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-      "overlap": true,
-      "utterance_id": "8430-172388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172388.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 85620
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.034857577436636,
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-      "utterance_id": "8430-172387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172387.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 84082
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.609080212096043,
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-      "duration": 4.278758148437725,
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-      "utterance_id": "6550-65820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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\ No newline at end of file
diff --git a/conversations/conv_039620.json b/conversations/conv_039620.json
deleted file mode 100644
index 6dd3195b9358523386ed4c2ffd00950695811f4e..0000000000000000000000000000000000000000
--- a/conversations/conv_039620.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1643-138089.flac |",
-      "real_speaker_id": "1643",
-      "position_frames": 0
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-      "real_speaker_id": "3185",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1643-138089.flac |",
-      "real_speaker_id": "1643",
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-      "real_speaker_id": "3185",
-      "position_frames": 204146
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-266250.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_039636.json b/conversations/conv_039636.json
deleted file mode 100644
index 10685616dba7729fbd218eb57f08edb5d236c6a3..0000000000000000000000000000000000000000
--- a/conversations/conv_039636.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-114476.flac |",
-      "real_speaker_id": "8118",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "3876",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "8118",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1571-141320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-141320.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_039641.json b/conversations/conv_039641.json
deleted file mode 100644
index d24c01ef25eb84c2e95d377a40bc19f89cba2d0f..0000000000000000000000000000000000000000
--- a/conversations/conv_039641.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
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-      "utterance_id": "3054-128244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_039657.json b/conversations/conv_039657.json
deleted file mode 100644
index 9a57880b70938041b4d8910b8d959e24cec78be9..0000000000000000000000000000000000000000
--- a/conversations/conv_039657.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8169-118202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118202.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.191550187316117,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-91098.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-87508.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121400.flac |",
-      "real_speaker_id": "3285",
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-      "speaker_id": 2,
-      "start_time": 24.67686072068551,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118202.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 92882
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.12059898357988,
-      "end_time": 32.0,
-      "duration": 1.8794010164201183,
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-      "duration_frames": 30070,
-      "overlap": false,
-      "utterance_id": "3285-121400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121400.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 89632
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039661.json b/conversations/conv_039661.json
deleted file mode 100644
index 62733874224416ef381c426aed2b0a2f86cba615..0000000000000000000000000000000000000000
--- a/conversations/conv_039661.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5248-34498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34498.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.192025382047093,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-26872.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
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-      "utterance_id": "2104-78240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78240.flac |",
-      "real_speaker_id": "2104",
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-      "utterance_id": "4592-22179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22179.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-2163.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.06647274135007,
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-      "utterance_id": "4592-22178",
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-      "start_time": 22.089968059817622,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 29.47381156699424,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039666.json b/conversations/conv_039666.json
deleted file mode 100644
index 6b8d1717e68efe2bbd095a4ad66bbb9630718012..0000000000000000000000000000000000000000
--- a/conversations/conv_039666.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7881-105574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-105574.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/173-200.flac |",
-      "real_speaker_id": "173",
-      "position_frames": 159994
-    },
-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "speaker_id": "7881"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039676.json b/conversations/conv_039676.json
deleted file mode 100644
index beba28ac24877dbf49b1f555d46876f008a76184..0000000000000000000000000000000000000000
--- a/conversations/conv_039676.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6880-216547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6880-216547.flac |",
-      "real_speaker_id": "6880",
-      "position_frames": 0
-    },
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-      "real_speaker_id": "3483",
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-      "real_speaker_id": "6880",
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\ No newline at end of file
diff --git a/conversations/conv_039677.json b/conversations/conv_039677.json
deleted file mode 100644
index 8c72cb4ab50967c2b0575278ea13611c54c04adb..0000000000000000000000000000000000000000
--- a/conversations/conv_039677.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "4145-104606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-104606.flac |",
-      "real_speaker_id": "4145",
-      "position_frames": 0
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-      "real_speaker_id": "766",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_039682.json b/conversations/conv_039682.json
deleted file mode 100644
index 059df36b25b06ccccbbc2c7fb25c03e82fb8fd6a..0000000000000000000000000000000000000000
--- a/conversations/conv_039682.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_039689.json b/conversations/conv_039689.json
deleted file mode 100644
index 3095082e5c81e7e083a4a74b1a13cba06c44fe37..0000000000000000000000000000000000000000
--- a/conversations/conv_039689.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "duration": 1.1592515205388971,
-      "start_time": 30.04909667808263,
-      "speaker_id": "1444"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1444/cough/0038.wav",
-      "duration": 0.48825021392353063,
-      "start_time": 28.291871305529046,
-      "speaker_id": "1444"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039694.json b/conversations/conv_039694.json
deleted file mode 100644
index 2dc3345687a988dc4ec936f099f40da3ef89a4d9..0000000000000000000000000000000000000000
--- a/conversations/conv_039694.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3187-168500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168500.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.5575128224727495,
-      "end_time": 9.265372452305915,
-      "duration": 4.707859629833165,
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-      "utterance_id": "2279-141140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2279-141140.flac |",
-      "real_speaker_id": "2279",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.009622248947842,
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-      "overlap": false,
-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.20474212793345,
-      "end_time": 20.43709516522105,
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-      "utterance_id": "2279-141140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2279-141140.flac |",
-      "real_speaker_id": "2279",
-      "position_frames": 75325
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.46852934460301,
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-      "duration": 4.7355951121533195,
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-      "duration_frames": 75769,
-      "overlap": false,
-      "utterance_id": "3187-168500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168500.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 71581
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.230623511028412,
-      "end_time": 32.0,
-      "duration": 4.769376488971588,
-      "start_frame": 435689,
-      "duration_frames": 76310,
-      "overlap": false,
-      "utterance_id": "2279-141140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2279-141140.flac |",
-      "real_speaker_id": "2279",
-      "position_frames": 159042
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_2.wav",
-      "duration": 1.1182028150175496,
-      "start_time": 13.360168670785827
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_0.wav",
-      "duration": 1.116031746031746,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3187/laugh/0051.wav",
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-      "speaker_id": "3187"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3187/cough/0029.wav",
-      "duration": 0.46655725906709056,
-      "start_time": 13.683542972728098,
-      "speaker_id": "3187"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2279/cough/0037.wav",
-      "duration": 1.08,
-      "start_time": 13.992192334983477,
-      "speaker_id": "2279"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2279/laugh/0022.wav",
-      "duration": 0.6365636787301362,
-      "start_time": 31.363436321269862,
-      "speaker_id": "2279"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039698.json b/conversations/conv_039698.json
deleted file mode 100644
index 7cf4e8f6df42a9c3968ab907eb13929ab2f4bddc..0000000000000000000000000000000000000000
--- a/conversations/conv_039698.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.078320486496516,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.693342534868476,
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-      "utterance_id": "5248-2163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-2163.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.23804648031573,
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-      "overlap": true,
-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 78142
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.757987052003745,
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-      "utterance_id": "5248-34500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34500.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.158250194589492,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 73003
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.54230569207263,
-      "end_time": 32.0,
-      "duration": 1.457694307927369,
-      "start_frame": 488676,
-      "duration_frames": 23323,
-      "overlap": false,
-      "utterance_id": "5248-24760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-24760.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-    {
-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "speaker_id": "5248"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039699.json b/conversations/conv_039699.json
deleted file mode 100644
index 0a68c4ccf5772985a7e04a6d0eb1ed472e1e1622..0000000000000000000000000000000000000000
--- a/conversations/conv_039699.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.67121996358905,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121140.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 0
-    },
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-      "real_speaker_id": "22",
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-    {
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-      "utterance_id": "781-127518",
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-      "real_speaker_id": "781",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "781",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 22.813442039509162,
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-      "overlap": false,
-      "utterance_id": "781-127518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 58487
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121148.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 82925
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039704.json b/conversations/conv_039704.json
deleted file mode 100644
index e90c67b434c3130fb31715e170c57012e60084bd..0000000000000000000000000000000000000000
--- a/conversations/conv_039704.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7667.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4583-17998.flac |",
-      "real_speaker_id": "4583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.89662630235985,
-      "end_time": 32.0,
-      "duration": 4.103373697640151,
-      "start_frame": 446346,
-      "duration_frames": 65653,
-      "overlap": false,
-      "utterance_id": "2407-7667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7667.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 85552
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "start_time": 0.9907244480668242
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2407/cough/0060.wav",
-      "duration": 0.37015499103440447,
-      "start_time": 5.440729688916455,
-      "speaker_id": "2407"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6332/laugh/0066.wav",
-      "duration": 0.9217569298401633,
-      "start_time": 9.817687724684873,
-      "speaker_id": "6332"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6332/cough/0041.wav",
-      "duration": 1.387533462544143,
-      "start_time": 21.737470577339657,
-      "speaker_id": "6332"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4583/laugh/0114.wav",
-      "duration": 1.2485750026551239,
-      "start_time": 20.480040660099267,
-      "speaker_id": "4583"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039708.json b/conversations/conv_039708.json
deleted file mode 100644
index 445e40b13bd9fcc0a80abffa2eec20f0eb9e1128..0000000000000000000000000000000000000000
--- a/conversations/conv_039708.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.5593602231143,
-      "duration": 5.5593602231143,
-      "start_frame": 0,
-      "duration_frames": 88949,
-      "overlap": false,
-      "utterance_id": "1639-132848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.321066422533724,
-      "end_time": 12.118466791648839,
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-      "utterance_id": "2427-154673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154673.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.292601546435943,
-      "end_time": 19.521338013580017,
-      "duration": 6.228736467144074,
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-      "duration_frames": 99659,
-      "overlap": false,
-      "utterance_id": "1639-132848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 88949
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.823340608644383,
-      "end_time": 26.536591077435105,
-      "duration": 6.713250468790724,
-      "start_frame": 317173,
-      "duration_frames": 107412,
-      "overlap": false,
-      "utterance_id": "2427-154671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154671.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.672407476469147,
-      "end_time": 29.74625504067433,
-      "duration": 3.0738475642051837,
-      "start_frame": 426758,
-      "duration_frames": 49181,
-      "overlap": false,
-      "utterance_id": "1639-132848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 188608
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.89250445117081,
-      "end_time": 32.0,
-      "duration": 2.1074955488291884,
-      "start_frame": 478280,
-      "duration_frames": 33719,
-      "overlap": false,
-      "utterance_id": "2427-154673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154673.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 92758
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 7.093358645134254
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-  ],
-  "foreground_events": [
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-      "event_class": "Cat",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1639/laugh/0059.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.84,
-      "start_time": 26.53691225753361,
-      "speaker_id": "2427"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.68,
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-      "speaker_id": "2427"
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "2427"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039712.json b/conversations/conv_039712.json
deleted file mode 100644
index 983f284a33b1b7ec4f8ac0304cb88a986d6963a3..0000000000000000000000000000000000000000
--- a/conversations/conv_039712.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.5168486471944,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3436-172171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.416673941850955,
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-      "overlap": false,
-      "utterance_id": "7997-111638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111638.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.761867696565828,
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-      "duration": 6.5692844760037135,
-      "start_frame": 188189,
-      "duration_frames": 105108,
-      "overlap": false,
-      "utterance_id": "3436-172171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 100992
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.52297620968986,
-      "end_time": 24.10819422440985,
-      "duration": 5.58521801471999,
-      "start_frame": 296367,
-      "duration_frames": 89363,
-      "overlap": false,
-      "utterance_id": "3436-172162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172162.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.424837336835534,
-      "end_time": 31.5168486471944,
-      "duration": 6.092011310358868,
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-      "duration_frames": 97472,
-      "overlap": false,
-      "utterance_id": "7997-275179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-275179.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-      "start_time": 0.07636144196229702
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7997/laugh/0002.wav",
-      "duration": 1.1713470807028459,
-      "start_time": 11.514286509856136,
-      "speaker_id": "7997"
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7997/laugh/0004.wav",
-      "duration": 1.139319273448711,
-      "start_time": 30.86068072655129,
-      "speaker_id": "7997"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039719.json b/conversations/conv_039719.json
deleted file mode 100644
index 31303dddacc3a6dd38a8af1920f9cfa684e61e46..0000000000000000000000000000000000000000
--- a/conversations/conv_039719.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.375064932687393,
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-      "duration_frames": 86001,
-      "overlap": false,
-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.9050025931551104,
-      "end_time": 9.494588686752412,
-      "duration": 3.589586093597302,
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-      "duration_frames": 57433,
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-      "utterance_id": "3928-153301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153301.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 57024,
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-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 86001
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.340232821871094,
-      "end_time": 18.967269720702074,
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-      "duration_frames": 74032,
-      "overlap": false,
-      "utterance_id": "3928-153301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153301.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 57433
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.554009663083118,
-      "end_time": 25.507369624743188,
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-      "utterance_id": "6249-290631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-290631.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "6003",
-      "position_frames": 143025
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.58076023437625,
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-      "duration": 1.4192397656237503,
-      "start_frame": 489292,
-      "duration_frames": 22707,
-      "overlap": false,
-      "utterance_id": "6249-290631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-290631.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 95253
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6003/laugh/0018.wav",
-      "duration": 1.14,
-      "start_time": 0,
-      "speaker_id": "6003"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6003/cough/0038.wav",
-      "duration": 1.2,
-      "start_time": 8.693833602900414,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3928/cough/0149.wav",
-      "duration": 0.8232612223728986,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6249/laugh/0077.wav",
-      "duration": 1.04,
-      "start_time": 22.97172023853148,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6249/laugh/0010.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "6249"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039723.json b/conversations/conv_039723.json
deleted file mode 100644
index b9c1385800e8a339147fbe61304f81f0b9e81eb3..0000000000000000000000000000000000000000
--- a/conversations/conv_039723.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.834805684420663,
-      "duration": 5.834805684420663,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8466-285142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.4528975089201435,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 93356
-    },
-    {
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-      "real_speaker_id": "8466",
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\ No newline at end of file
diff --git a/conversations/conv_039724.json b/conversations/conv_039724.json
deleted file mode 100644
index bdffda2d5ba781c0c1685be1df37c69eb3a2d431..0000000000000000000000000000000000000000
--- a/conversations/conv_039724.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.690181896441736,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-18515.flac |",
-      "real_speaker_id": "5163",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-126446.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-127952.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6733-97084.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_039728.json b/conversations/conv_039728.json
deleted file mode 100644
index b8c6d5f8421bee252315c0a844e9b9855a7cd032..0000000000000000000000000000000000000000
--- a/conversations/conv_039728.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7688",
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-      "start_time": 30.84,
-      "speaker_id": "7688"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039732.json b/conversations/conv_039732.json
deleted file mode 100644
index 97af3d74e0cb5d0e88175fe03f655de0c89b4885..0000000000000000000000000000000000000000
--- a/conversations/conv_039732.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.949015629412695,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-59157.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-63839.flac |",
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-      "real_speaker_id": "7297",
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-    {
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_039733.json b/conversations/conv_039733.json
deleted file mode 100644
index 11c7093bb0f1924f7e1ee85a86ab403bfac3d784..0000000000000000000000000000000000000000
--- a/conversations/conv_039733.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.086333506755718,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3657-182397",
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\ No newline at end of file
diff --git a/conversations/conv_039745.json b/conversations/conv_039745.json
deleted file mode 100644
index a000f768081bbb51687c552d677b5c3bd2dfde0f..0000000000000000000000000000000000000000
--- a/conversations/conv_039745.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_039749.json b/conversations/conv_039749.json
deleted file mode 100644
index b949742a651d24bbbb8a984bb2fe136a30fe71bf..0000000000000000000000000000000000000000
--- a/conversations/conv_039749.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_039753.json b/conversations/conv_039753.json
deleted file mode 100644
index a247fcf12c354868151898cfe27dc1baff052640..0000000000000000000000000000000000000000
--- a/conversations/conv_039753.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "real_speaker_id": "5185",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039758.json b/conversations/conv_039758.json
deleted file mode 100644
index b1a6f3bbea88c4beee7ebe0acf64b0c1b223b210..0000000000000000000000000000000000000000
--- a/conversations/conv_039758.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.503707174482635,
-  "num_speakers": 3,
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-      "speaker_id": "5077"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039764.json b/conversations/conv_039764.json
deleted file mode 100644
index 999031949f64762826e460d2374ab513a562cf24..0000000000000000000000000000000000000000
--- a/conversations/conv_039764.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4078",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "4591",
-      "position_frames": 65350
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_039765.json b/conversations/conv_039765.json
deleted file mode 100644
index c4388adfc1be9a736ae1dae9ad1bf8834b048a1b..0000000000000000000000000000000000000000
--- a/conversations/conv_039765.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_039769.json b/conversations/conv_039769.json
deleted file mode 100644
index ae95b20c193b2632f4d90cb8e30f0576f4daeec8..0000000000000000000000000000000000000000
--- a/conversations/conv_039769.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": "4546"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1564/cough/0035.wav",
-      "duration": 1.2,
-      "start_time": 18.155582965003813,
-      "speaker_id": "1564"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/726/laugh/0001.wav",
-      "duration": 1.1,
-      "start_time": 30.9,
-      "speaker_id": "726"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/726/cough/0097.wav",
-      "duration": 0.8282104700455899,
-      "start_time": 28.734248469413167,
-      "speaker_id": "726"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039773.json b/conversations/conv_039773.json
deleted file mode 100644
index b8b84d39b5b6785c221fcc6376f79ed55de94e0b..0000000000000000000000000000000000000000
--- a/conversations/conv_039773.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.799998204701105,
-      "duration": 3.799998204701105,
-      "start_frame": 0,
-      "duration_frames": 60799,
-      "overlap": false,
-      "utterance_id": "8778-246984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246984.flac |",
-      "real_speaker_id": "8778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.31435337345524,
-      "end_time": 10.173970572964908,
-      "duration": 5.859617199509668,
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-      "duration_frames": 93753,
-      "overlap": false,
-      "utterance_id": "101-126859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126859.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.11595557705541,
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-      "utterance_id": "8778-246974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246974.flac |",
-      "real_speaker_id": "8778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.270791117296405,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-7587.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.182583866196435,
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-      "overlap": false,
-      "utterance_id": "101-126860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126860.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.380713247408764,
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-      "duration": 5.4479096477906594,
-      "start_frame": 406091,
-      "duration_frames": 87166,
-      "overlap": false,
-      "utterance_id": "2988-7587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-7587.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 59304
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.429204332257246,
-      "end_time": 32.0,
-      "duration": 0.5707956677427539,
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-      "duration_frames": 9132,
-      "overlap": false,
-      "utterance_id": "8778-246983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246983.flac |",
-      "real_speaker_id": "8778",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
-      "duration": 23.47682734448221,
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/101/laugh/0107.wav",
-      "duration": 1.2,
-      "start_time": 24.71559882077118,
-      "speaker_id": "101"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8778/laugh/0108.wav",
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-      "start_time": 30.11080367642192,
-      "speaker_id": "8778"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039786.json b/conversations/conv_039786.json
deleted file mode 100644
index 5bfee258276b61c6d0887d9ae9e3e6c5c75a965b..0000000000000000000000000000000000000000
--- a/conversations/conv_039786.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "7307-276146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-276146.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 0
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-      "start_time": 4.550855827433341,
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-      "real_speaker_id": "3009",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.674873624383775,
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-      "utterance_id": "7307-276146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-276146.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 69974
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.69933994784433,
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-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 100888
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.010141773157955,
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-      "overlap": true,
-      "utterance_id": "7307-91998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-91998.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.029194719580545,
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-      "utterance_id": "7307-91998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7307-91998.flac |",
-      "real_speaker_id": "7307",
-      "position_frames": 72324
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7307/laugh/0006.wav",
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039790.json b/conversations/conv_039790.json
deleted file mode 100644
index ca84683da80c84c40ea459a1202046204167f4a3..0000000000000000000000000000000000000000
--- a/conversations/conv_039790.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "501-125127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125127.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.468747467134963,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 68081
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125127.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 50354
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.81192363260424,
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-      "utterance_id": "501-125127",
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-      "real_speaker_id": "501",
-      "position_frames": 133673
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.73369358788811,
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-      "utterance_id": "836-130900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-130900.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
-    }
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_039800.json b/conversations/conv_039800.json
deleted file mode 100644
index 087fef17bfbc81c08f405e0199e1d68acf886bd4..0000000000000000000000000000000000000000
--- a/conversations/conv_039800.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-109662.flac |",
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-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "7881-105574",
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\ No newline at end of file
diff --git a/conversations/conv_039801.json b/conversations/conv_039801.json
deleted file mode 100644
index a1747bda17b690b435500586e667f7e653543380..0000000000000000000000000000000000000000
--- a/conversations/conv_039801.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-63225.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-50469.flac |",
-      "real_speaker_id": "6087",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112593.flac |",
-      "real_speaker_id": "8006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6087-50469.flac |",
-      "real_speaker_id": "6087",
-      "position_frames": 82114
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "8006-112593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112593.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 81887
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039817.json b/conversations/conv_039817.json
deleted file mode 100644
index 61bafb43a68bc5d7f0a619b726508232db2554b4..0000000000000000000000000000000000000000
--- a/conversations/conv_039817.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
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-      "real_speaker_id": "7874",
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-      "speaker_id": "5060"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039821.json b/conversations/conv_039821.json
deleted file mode 100644
index 3644ed95d105ea0af73f2d3379fddd64e41445ff..0000000000000000000000000000000000000000
--- a/conversations/conv_039821.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "4965",
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\ No newline at end of file
diff --git a/conversations/conv_039826.json b/conversations/conv_039826.json
deleted file mode 100644
index 88280d204849b528a671fdf19db0bf0e5a513154..0000000000000000000000000000000000000000
--- a/conversations/conv_039826.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "58-121075",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_039830.json b/conversations/conv_039830.json
deleted file mode 100644
index 9ff43411ac9fedb577eb61f200784455557b49e2..0000000000000000000000000000000000000000
--- a/conversations/conv_039830.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7991",
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-      "real_speaker_id": "7991",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-163935.flac |",
-      "real_speaker_id": "1335",
-      "position_frames": 78849
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-      "speaker_id": 0,
-      "start_time": 26.25417960809367,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7991-102381.flac |",
-      "real_speaker_id": "7991",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039837.json b/conversations/conv_039837.json
deleted file mode 100644
index b20301bbe34e5c9a09069cfb2f9c40ae8b0dd87e..0000000000000000000000000000000000000000
--- a/conversations/conv_039837.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0006",
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-      "event_class": "laugh",
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-      "start_time": 31.16,
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039840.json b/conversations/conv_039840.json
deleted file mode 100644
index d9d99d80b4ebc5588e53ecc7ee81a7fc430b1c21..0000000000000000000000000000000000000000
--- a/conversations/conv_039840.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154880.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "2518",
-      "position_frames": 53950
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.028168558818063,
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-      "real_speaker_id": "2356",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_039856.json b/conversations/conv_039856.json
deleted file mode 100644
index 292db565d1cab895ce5d5657ec66c50c2995601e..0000000000000000000000000000000000000000
--- a/conversations/conv_039856.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_039860.json b/conversations/conv_039860.json
deleted file mode 100644
index aabb94af81d7a369013342263ccc8dadb046de2d..0000000000000000000000000000000000000000
--- a/conversations/conv_039860.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6687",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 89776
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.378042708590897,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-163698.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
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-      "position_frames": 77279
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_039867.json b/conversations/conv_039867.json
deleted file mode 100644
index 51e44bffb630bc56786a3c29d6d0821c3862edaf..0000000000000000000000000000000000000000
--- a/conversations/conv_039867.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_039871.json b/conversations/conv_039871.json
deleted file mode 100644
index b08ba9edcbc575a12bb54916bd18e7aae130c79b..0000000000000000000000000000000000000000
--- a/conversations/conv_039871.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_039876.json b/conversations/conv_039876.json
deleted file mode 100644
index 567059a477edb2d337f38cbfcd3f4ba8e2947ff4..0000000000000000000000000000000000000000
--- a/conversations/conv_039876.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "7147",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "7147"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039883.json b/conversations/conv_039883.json
deleted file mode 100644
index 6a08e6723b7789a63ff384ce2bc0607d69c174fc..0000000000000000000000000000000000000000
--- a/conversations/conv_039883.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.470697149578854,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "8088-284756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8088-284756.flac |",
-      "real_speaker_id": "8088",
-      "position_frames": 0
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-      "start_time": 7.321462737340726,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8088-284756.flac |",
-      "real_speaker_id": "8088",
-      "position_frames": 111947
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48842.flac |",
-      "real_speaker_id": "5712",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147979.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48842.flac |",
-      "real_speaker_id": "5712",
-      "position_frames": 75321
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039888.json b/conversations/conv_039888.json
deleted file mode 100644
index 779beb4f5a0cd13098c25c0c504e5744c2989ed9..0000000000000000000000000000000000000000
--- a/conversations/conv_039888.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 60288
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-199.flac |",
-      "real_speaker_id": "98",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 72079
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039895.json b/conversations/conv_039895.json
deleted file mode 100644
index 396da8f5a2ce0d108f29b2a82882d27e41c18fb6..0000000000000000000000000000000000000000
--- a/conversations/conv_039895.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.671938865938674,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1780-143478",
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-    {
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-      "segment_id": "seg0005",
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.9134638019149506,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8168/laugh/0032.wav",
-      "duration": 1.04,
-      "start_time": 19.98530166401188,
-      "speaker_id": "8168"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8168/cough/0054.wav",
-      "duration": 0.41484940987506314,
-      "start_time": 20.479436355479763,
-      "speaker_id": "8168"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1780/cough/0074.wav",
-      "duration": 1.16,
-      "start_time": 25.862487782433714,
-      "speaker_id": "1780"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039899.json b/conversations/conv_039899.json
deleted file mode 100644
index a39480f035896f6f3d4c45e3a1a81bd4d576bd7e..0000000000000000000000000000000000000000
--- a/conversations/conv_039899.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.238592559262952,
-      "duration": 6.238592559262952,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.448762795807076,
-      "end_time": 14.426439424432605,
-      "duration": 6.977676628625529,
-      "start_frame": 119180,
-      "duration_frames": 111642,
-      "overlap": false,
-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 15.499812654958502,
-      "end_time": 21.610755572636915,
-      "duration": 6.110942917678413,
-      "start_frame": 247997,
-      "duration_frames": 97775,
-      "overlap": false,
-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 99817
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.832351775931308,
-      "end_time": 27.031449083190864,
-      "duration": 5.199097307259557,
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-      "duration_frames": 83185,
-      "overlap": false,
-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.543978316376172,
-      "end_time": 32.0,
-      "duration": 4.456021683623828,
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-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 197592
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.4254140996166136,
-      "start_time": 2.232354780551241
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5506/cough/0018.wav",
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-      "start_time": 10.192172532224646,
-      "speaker_id": "5506"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039905.json b/conversations/conv_039905.json
deleted file mode 100644
index c95c96fab09076a7ab75c3fc05eec7d521223e3f..0000000000000000000000000000000000000000
--- a/conversations/conv_039905.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6014-32856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32856.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-139350.flac |",
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-      "utterance_id": "6014-32904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32904.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "3098-5406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3098-5406.flac |",
-      "real_speaker_id": "3098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.738278992889803,
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-      "overlap": false,
-      "utterance_id": "1556-139350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-139350.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 72269
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.213267789720312,
-      "end_time": 32.0,
-      "duration": 4.786732210279688,
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-      "overlap": false,
-      "utterance_id": "1556-139350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-139350.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 151170
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3098/laugh/0007.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_039909.json b/conversations/conv_039909.json
deleted file mode 100644
index 94ddf79fb846fff5dfc02818e657e59b2d2fecdd..0000000000000000000000000000000000000000
--- a/conversations/conv_039909.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3733-140718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
-      "real_speaker_id": "3733",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/606-130296.flac |",
-      "real_speaker_id": "606",
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-      "real_speaker_id": "3733",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "606",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 144066
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_039913.json b/conversations/conv_039913.json
deleted file mode 100644
index ef9df1c44f33efddb77dcb82df2b85b8f7fcd235..0000000000000000000000000000000000000000
--- a/conversations/conv_039913.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.445714960210587,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7387-96092",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-      "event_class": "laugh",
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-      "duration": 1.1857967100920535,
-      "start_time": 5.120471380481339,
-      "speaker_id": "6038"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7387/cough/0062.wav",
-      "duration": 1.12,
-      "start_time": 19.29561013119804,
-      "speaker_id": "7387"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7387/cough/0128.wav",
-      "duration": 0.8,
-      "start_time": 25.81054543676731,
-      "speaker_id": "7387"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039922.json b/conversations/conv_039922.json
deleted file mode 100644
index 9335f25efb5e3433ddc9ea8d680c50697fd5ae17..0000000000000000000000000000000000000000
--- a/conversations/conv_039922.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.391056726829328,
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-      "overlap": false,
-      "utterance_id": "152-183930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.689874675727661,
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-      "duration_frames": 48857,
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-      "utterance_id": "4586-61758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-61758.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.178787062923705,
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-      "overlap": false,
-      "utterance_id": "152-183930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 102256
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.848057201318774,
-      "end_time": 21.18237286464366,
-      "duration": 5.3343156633248885,
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-      "duration_frames": 85349,
-      "overlap": true,
-      "utterance_id": "4586-61776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-61776.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.75414257058009,
-      "end_time": 25.534880055025745,
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-      "start_frame": 348066,
-      "duration_frames": 60491,
-      "overlap": true,
-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.61521200557936,
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-      "duration": 4.384787994420641,
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-      "utterance_id": "4586-61758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-61758.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 48857
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/152/cough/0054.wav",
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-      "start_time": 15.774144476715199,
-      "speaker_id": "152"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039925.json b/conversations/conv_039925.json
deleted file mode 100644
index ada95e0da1e9b58b2b8e0335f15c292ef1f70632..0000000000000000000000000000000000000000
--- a/conversations/conv_039925.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7691-293948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-293948.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-163454.flac |",
-      "real_speaker_id": "2587",
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-      "segment_id": "seg0002",
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-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.816466160881866,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-293948.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 85339
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.649097042874065,
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-      "overlap": false,
-      "utterance_id": "2587-159393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-159393.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.215067388732265,
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-      "duration": 3.7849326112677346,
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-      "overlap": false,
-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 81668
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.48,
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-      "speaker_id": "2587"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039929.json b/conversations/conv_039929.json
deleted file mode 100644
index 4c5c71f946d15ffdd985f988b2fad416ad5a54e6..0000000000000000000000000000000000000000
--- a/conversations/conv_039929.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.87991165941164,
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-      "real_speaker_id": "8138",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6088-34570",
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-      "real_speaker_id": "6088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.375240666811987,
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-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70974.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70974.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "start_time": 30.6,
-      "speaker_id": "6652"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039933.json b/conversations/conv_039933.json
deleted file mode 100644
index 5e300d66fff8c49988a9f527fa38cbf778924aca..0000000000000000000000000000000000000000
--- a/conversations/conv_039933.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7069-246904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246904.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "298",
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-    {
-      "segment_id": "seg0002",
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-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_11.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/298/laugh/0026.wav",
-      "duration": 1.12,
-      "start_time": 11.636778715257638,
-      "speaker_id": "298"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7069/laugh/0081.wav",
-      "duration": 1.1935116608174487,
-      "start_time": 10.197740929769317,
-      "speaker_id": "7069"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.84,
-      "start_time": 19.53421396588895,
-      "speaker_id": "8632"
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-    {
-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 27.4636561407957,
-      "speaker_id": "7069"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/298/laugh/0061.wav",
-      "duration": 1.32,
-      "start_time": 29.27987315905734,
-      "speaker_id": "298"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039934.json b/conversations/conv_039934.json
deleted file mode 100644
index 1dd017d5ff69b9f0955ad88abd3920f81795462e..0000000000000000000000000000000000000000
--- a/conversations/conv_039934.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.37284121205814,
-      "duration": 5.37284121205814,
-      "start_frame": 0,
-      "duration_frames": 85965,
-      "overlap": false,
-      "utterance_id": "1743-142913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142913.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.8568201087908776,
-      "end_time": 10.470605170018121,
-      "duration": 4.613785061227244,
-      "start_frame": 93709,
-      "duration_frames": 73820,
-      "overlap": false,
-      "utterance_id": "1743-142912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142912.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.649920318112244,
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-      "duration_frames": 95379,
-      "overlap": false,
-      "utterance_id": "1182-134981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134981.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.37996521317205,
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-      "duration_frames": 51263,
-      "overlap": false,
-      "utterance_id": "1182-134316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134316.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.912839379733903,
-      "end_time": 25.025257489288833,
-      "duration": 4.112418109554932,
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-      "overlap": false,
-      "utterance_id": "7823-103122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7823-103122.flac |",
-      "real_speaker_id": "7823",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.948050588109368,
-      "end_time": 29.36502252408041,
-      "duration": 4.416971935971042,
-      "start_frame": 399168,
-      "duration_frames": 70671,
-      "overlap": true,
-      "utterance_id": "1743-142914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142914.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.494006459436036,
-      "end_time": 32.0,
-      "duration": 1.5059935405639635,
-      "start_frame": 487904,
-      "duration_frames": 24095,
-      "overlap": false,
-      "utterance_id": "1182-133396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-133396.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 0.24232783989318601
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.38840920084326447,
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-      "speaker_id": "1743"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1182/laugh/0048.wav",
-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "1182"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1182/cough/0038.wav",
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-      "start_time": 31.072046866709492,
-      "speaker_id": "1182"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039944.json b/conversations/conv_039944.json
deleted file mode 100644
index 6086164aa06aa9fdc58ce637b288861907bddc9a..0000000000000000000000000000000000000000
--- a/conversations/conv_039944.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.8548627446126575,
-      "duration": 4.8548627446126575,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "192-128345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128345.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.3991531547538,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13009.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 0
-    },
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-      "duration_frames": 61821,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128345.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 77677
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.70202170706837,
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-      "utterance_id": "4297-13006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13006.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.701767196579144,
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-      "duration": 4.850151478641308,
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-      "utterance_id": "4297-13009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13009.flac |",
-      "real_speaker_id": "4297",
-      "position_frames": 96364
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.971824427789073,
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-      "duration": 3.0281755722109267,
-      "start_frame": 463549,
-      "duration_frames": 48450,
-      "overlap": false,
-      "utterance_id": "192-123167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-123167.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/192/laugh/0069.wav",
-      "duration": 0.9589874689295534,
-      "start_time": 12.98172391262591,
-      "speaker_id": "192"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4297/laugh/0062.wav",
-      "duration": 1.08,
-      "start_time": 18.712060164898183,
-      "speaker_id": "4297"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039948.json b/conversations/conv_039948.json
deleted file mode 100644
index 57b2308ead9a581e77bd0fb1c20f9c910f26226e..0000000000000000000000000000000000000000
--- a/conversations/conv_039948.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1914-121446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121446.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.84753123590138,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90850.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.647104855754492,
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-      "duration_frames": 109323,
-      "overlap": false,
-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.90491943126829,
-      "end_time": 30.864961862440257,
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-      "utterance_id": "1280-135136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 83583
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.045152425986696,
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-      "duration": 0.9548475740133036,
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-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 109323
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1280/laugh/0047.wav",
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-      "start_time": 24.153677272865533,
-      "speaker_id": "1280"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_039949.json b/conversations/conv_039949.json
deleted file mode 100644
index d377111646e499f781ab53c1847bcf8265fefc8f..0000000000000000000000000000000000000000
--- a/conversations/conv_039949.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.3517588698575627,
-      "duration": 3.3517588698575627,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.203363286872472,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-141422.flac |",
-      "real_speaker_id": "474",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.439006088971059,
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-      "overlap": false,
-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "474",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_039952.json b/conversations/conv_039952.json
deleted file mode 100644
index 39d3bc433cc689c86bf4cb061983bed5cd069f94..0000000000000000000000000000000000000000
--- a/conversations/conv_039952.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6505-231838.flac |",
-      "real_speaker_id": "6505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.6077004365791625,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73295.flac |",
-      "real_speaker_id": "6696",
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-      "utterance_id": "6505-231837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6505-231837.flac |",
-      "real_speaker_id": "6505",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.181471329331426,
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-      "utterance_id": "5545-66419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-66419.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.840643853168363,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6505-231836.flac |",
-      "real_speaker_id": "6505",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
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-      "utterance_id": "5545-66419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-66419.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 94256
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "6505"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039963.json b/conversations/conv_039963.json
deleted file mode 100644
index 6193c90a3eb5df30b44d7367f8c2e1464e7f4257..0000000000000000000000000000000000000000
--- a/conversations/conv_039963.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/696-93314.flac |",
-      "real_speaker_id": "696",
-      "position_frames": 62257
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "3665",
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-      "real_speaker_id": "696",
-      "position_frames": 144691
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_039964.json b/conversations/conv_039964.json
deleted file mode 100644
index b555afaa8ee08a855902c89ee232d1266ac23855..0000000000000000000000000000000000000000
--- a/conversations/conv_039964.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.24888002766366,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-49593.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 13.383355923716525,
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-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "4667-92224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92224.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
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-      "position_frames": 59388
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "speaker_id": "6853"
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-}
\ No newline at end of file
diff --git a/conversations/conv_039968.json b/conversations/conv_039968.json
deleted file mode 100644
index 653087566590088b4a221f2d3b6138a7cc2ecb97..0000000000000000000000000000000000000000
--- a/conversations/conv_039968.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "end_time": 5.292658478808325,
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-      "utterance_id": "6459-70120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70120.flac |",
-      "real_speaker_id": "6459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
-      "real_speaker_id": "5975",
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-    {
-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_039972.json b/conversations/conv_039972.json
deleted file mode 100644
index bbcacb451698a1a9f260f893d882be7be34f8165..0000000000000000000000000000000000000000
--- a/conversations/conv_039972.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_039975.json b/conversations/conv_039975.json
deleted file mode 100644
index 810455b973e3d2be961937f92cfb2f9f3f70213c..0000000000000000000000000000000000000000
--- a/conversations/conv_039975.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_039987.json b/conversations/conv_039987.json
deleted file mode 100644
index 5feb682f775f6d3585e9aa598313cce0c1f2c703..0000000000000000000000000000000000000000
--- a/conversations/conv_039987.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_039991.json b/conversations/conv_039991.json
deleted file mode 100644
index a3d855edd83c046d0538ae9adfa4f6b5fb9fa75d..0000000000000000000000000000000000000000
--- a/conversations/conv_039991.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "6689",
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-      "start_time": 14.6656574965087,
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-      "utterance_id": "551-132996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-132996.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 72172
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.39492482925177,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
-      "real_speaker_id": "6689",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.60056101340932,
-      "end_time": 30.442203215860783,
-      "duration": 4.841642202451464,
-      "start_frame": 409608,
-      "duration_frames": 77466,
-      "overlap": true,
-      "utterance_id": "3923-181420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-181420.flac |",
-      "real_speaker_id": "3923",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-      "start_time": 3.8994528780924114
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
-      "duration": 0.20596371882086167,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/551/laugh/0039.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "551"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/551/cough/0115.wav",
-      "duration": 0.6448977467991164,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6689/laugh/0094.wav",
-      "duration": 1.04,
-      "start_time": 8.618244844148606,
-      "speaker_id": "6689"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/551/cough/0105.wav",
-      "duration": 0.4020946244796557,
-      "start_time": 19.19348144176643,
-      "speaker_id": "551"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6689/laugh/0054.wav",
-      "duration": 1.04,
-      "start_time": 18.11101218066779,
-      "speaker_id": "6689"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040001.json b/conversations/conv_040001.json
deleted file mode 100644
index 6cf72de1e396c9803cf87d2d8b94a0738db2ceb2..0000000000000000000000000000000000000000
--- a/conversations/conv_040001.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.79375143432557,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.9131847469338052,
-      "duration": 3.9131847469338052,
-      "start_frame": 0,
-      "duration_frames": 62610,
-      "overlap": false,
-      "utterance_id": "3289-171107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171107.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.131014448025114,
-      "end_time": 7.283694921034871,
-      "duration": 3.152680473009757,
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-      "overlap": false,
-      "utterance_id": "5325-50109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.974855486120905,
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-      "overlap": false,
-      "utterance_id": "7752-110526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110526.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.980612915710928,
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-      "overlap": false,
-      "utterance_id": "5325-36587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-36587.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.19496184695743,
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-      "overlap": false,
-      "utterance_id": "3289-171107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171107.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 62610
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.538092012234085,
-      "end_time": 29.408348647232877,
-      "duration": 4.870256634998792,
-      "start_frame": 392609,
-      "duration_frames": 77924,
-      "overlap": false,
-      "utterance_id": "5325-50109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 50442
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.809917905400066,
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-      "start_frame": 476958,
-      "duration_frames": 31741,
-      "overlap": true,
-      "utterance_id": "5325-50109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 128366
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3289/laugh/0078.wav",
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-      "start_time": 24.063979530719696,
-      "speaker_id": "3289"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040006.json b/conversations/conv_040006.json
deleted file mode 100644
index 222f005b9ae4b9fe18cd28bd703f3a8955121c9e..0000000000000000000000000000000000000000
--- a/conversations/conv_040006.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1595-138031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.315978580999375,
-      "end_time": 12.468324554333304,
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-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "duration": 6.383321846537822,
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-      "overlap": true,
-      "utterance_id": "1826-139361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1826-139361.flac |",
-      "real_speaker_id": "1826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.257329442939593,
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-      "overlap": false,
-      "utterance_id": "1595-132753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-132753.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.071624701401493,
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-      "utterance_id": "3168-173565",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173565.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.07582908185126,
-      "end_time": 32.0,
-      "duration": 0.9241709181487394,
-      "start_frame": 497213,
-      "duration_frames": 14786,
-      "overlap": false,
-      "utterance_id": "1826-142752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1826-142752.flac |",
-      "real_speaker_id": "1826",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3168/laugh/0046.wav",
-      "duration": 1.52,
-      "start_time": 4.5984587139129145,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1826/laugh/0089.wav",
-      "duration": 1.28,
-      "start_time": 19.30054284374813,
-      "speaker_id": "1826"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3168/laugh/0009.wav",
-      "duration": 1.16,
-      "start_time": 30.494677493669982,
-      "speaker_id": "3168"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040010.json b/conversations/conv_040010.json
deleted file mode 100644
index ca7a69a7a17c73aa906f7a978c183cc4d3e14810..0000000000000000000000000000000000000000
--- a/conversations/conv_040010.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.66702028146602,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 72837,
-      "overlap": false,
-      "utterance_id": "7276-92427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.812469363471537,
-      "end_time": 11.3821200068973,
-      "duration": 5.569650643425763,
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-      "duration_frames": 89114,
-      "overlap": false,
-      "utterance_id": "5123-34572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.719412233323201,
-      "end_time": 18.533969140130758,
-      "duration": 6.814556906807557,
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-      "duration_frames": 109032,
-      "overlap": false,
-      "utterance_id": "5123-34572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 89114
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.640800665599457,
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-      "duration": 4.237922314026761,
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-      "duration_frames": 67806,
-      "overlap": false,
-      "utterance_id": "6497-234106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234106.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.00745156583335,
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-      "utterance_id": "6497-234106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234106.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 67806
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.368274490141577,
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-      "duration": 4.298745791324443,
-      "start_frame": 437892,
-      "duration_frames": 68779,
-      "overlap": true,
-      "utterance_id": "6497-234106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234106.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 136758
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6497/laugh/0023.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6497/cough/0027.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "6497"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040017.json b/conversations/conv_040017.json
deleted file mode 100644
index cfe8a6599b19e751b526f8f10852d717117f1f38..0000000000000000000000000000000000000000
--- a/conversations/conv_040017.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.45943837483013,
-      "duration": 4.45943837483013,
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-      "overlap": false,
-      "utterance_id": "5655-46268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.454396524889734,
-      "end_time": 7.675828470382981,
-      "duration": 3.2214319454932463,
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-      "duration_frames": 51542,
-      "overlap": true,
-      "utterance_id": "8444-281329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "5655-46268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 71351
-    },
-    {
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-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.370850032249656,
-      "end_time": 25.3547538352985,
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-      "overlap": false,
-      "utterance_id": "5655-46268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 137409
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.746893460216114,
-      "end_time": 32.0,
-      "duration": 6.253106539783886,
-      "start_frame": 411950,
-      "duration_frames": 100049,
-      "overlap": false,
-      "utterance_id": "8444-281329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8444-281329.flac |",
-      "real_speaker_id": "8444",
-      "position_frames": 51542
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
-      "duration": 3.6240050393250636,
-      "start_time": 1.3204340977451647
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-  ],
-  "paralinguistic_events": [
-    {
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-      "duration": 1.2994476302287472,
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-      "speaker_id": "5655"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8444/laugh/0083.wav",
-      "duration": 1.0,
-      "start_time": 3.2727340156136444,
-      "speaker_id": "8444"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 7.5551129500357215,
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-    {
-      "event_class": "cough",
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-      "duration": 0.5982493067879504,
-      "start_time": 18.455762390286154,
-      "speaker_id": "2334"
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-    {
-      "event_class": "cough",
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-      "duration": 0.8664011044633602,
-      "start_time": 18.343856218536573,
-      "speaker_id": "5655"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8444/laugh/0009.wav",
-      "duration": 0.88,
-      "start_time": 24.772755265683134,
-      "speaker_id": "8444"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040021.json b/conversations/conv_040021.json
deleted file mode 100644
index 880211408f7423a686615d621e65cc76c56f6b8c..0000000000000000000000000000000000000000
--- a/conversations/conv_040021.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.921617988316061,
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-      "start_frame": 0,
-      "duration_frames": 110745,
-      "overlap": false,
-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.69525789148655,
-      "end_time": 13.128938840741979,
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-      "overlap": true,
-      "utterance_id": "7511-102420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102420.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7511-102419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102419.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 110745
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.777678457446605,
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-      "utterance_id": "7511-102420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102420.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 102938
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.969487298383502,
-      "end_time": 32.0,
-      "duration": 2.030512701616498,
-      "start_frame": 479511,
-      "duration_frames": 32488,
-      "overlap": false,
-      "utterance_id": "4278-13269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-13269.flac |",
-      "real_speaker_id": "4278",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
-      "duration": 2.560789969556874,
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-  ],
-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1693/laugh/0036.wav",
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-      "duration": 1.08,
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-    },
-    {
-      "event_class": "cough",
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-    {
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-    {
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-      "speaker_id": "4278"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040037.json b/conversations/conv_040037.json
deleted file mode 100644
index e259f3a0d015158c12e3662b4eb64a5f76352859..0000000000000000000000000000000000000000
--- a/conversations/conv_040037.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.52570605489054,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1961-149738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-149738.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4659-26489.flac |",
-      "real_speaker_id": "4659",
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-      "utterance_id": "1961-149738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-149738.flac |",
-      "real_speaker_id": "1961",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5185-24772",
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-      "real_speaker_id": "5185",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1961-145733",
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-      "real_speaker_id": "1961",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 1.8914075090263935,
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-      "overlap": true,
-      "utterance_id": "5185-24763",
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-      "real_speaker_id": "5185",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 8.667862631908847,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1961/laugh/0109.wav",
-      "duration": 0.88,
-      "start_time": 26.192252965347897,
-      "speaker_id": "1961"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040040.json b/conversations/conv_040040.json
deleted file mode 100644
index 86f3e30da71bd734ec6eaae2717b9619087e0408..0000000000000000000000000000000000000000
--- a/conversations/conv_040040.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "779-126735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-126735.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6914-280389",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6914",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "779",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6914-284528",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/779/laugh/0115.wav",
-      "duration": 0.7362431902220571,
-      "start_time": 4.630495670178684,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4125229181991148,
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-    {
-      "event_class": "cough",
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-      "duration": 0.8521861382223208,
-      "start_time": 17.0943150696328,
-      "speaker_id": "6914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040047.json b/conversations/conv_040047.json
deleted file mode 100644
index cd35e43a47bb0127ad0b42040d1e411ca4bddcd0..0000000000000000000000000000000000000000
--- a/conversations/conv_040047.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.918359562652794,
-      "duration": 6.918359562652794,
-      "start_frame": 0,
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-      "utterance_id": "5115-26947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26947.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.607368467883321,
-      "end_time": 10.875897659402497,
-      "duration": 3.2685291915191756,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
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-      "overlap": false,
-      "utterance_id": "8113-301693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301693.flac |",
-      "real_speaker_id": "8113",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "duration_frames": 88091,
-      "overlap": true,
-      "utterance_id": "5115-26951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26951.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.942386466114428,
-      "end_time": 27.368517614526812,
-      "duration": 4.426131148412384,
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-      "duration_frames": 70818,
-      "overlap": false,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 52296
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.790770196244768,
-      "end_time": 32.0,
-      "duration": 4.209229803755232,
-      "start_frame": 444652,
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-      "overlap": false,
-      "utterance_id": "8113-117384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-117384.flac |",
-      "real_speaker_id": "8113",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8113/laugh/0061.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.44,
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-      "event_class": "cough",
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-      "duration": 1.3098214862178967,
-      "start_time": 26.396789044133595,
-      "speaker_id": "8113"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040051.json b/conversations/conv_040051.json
deleted file mode 100644
index 0e2001e08e4679e2798a14d382890bbc8f39bdca..0000000000000000000000000000000000000000
--- a/conversations/conv_040051.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8051-118101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8051-118101.flac |",
-      "real_speaker_id": "8051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.529067370800605,
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-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.244289257693662,
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-      "start_frame": 275908,
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-      "overlap": false,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 82518
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.379393424255507,
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-      "utterance_id": "8058-99402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.262113969506863,
-      "end_time": 32.0,
-      "duration": 0.7378860304931365,
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-      "duration_frames": 11806,
-      "overlap": false,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 183462
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8058/laugh/0027.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/87/laugh/0003.wav",
-      "duration": 1.24,
-      "start_time": 29.885755518570136,
-      "speaker_id": "87"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040056.json b/conversations/conv_040056.json
deleted file mode 100644
index 74ac1c8923f1ee149010df4c98528f06b3007032..0000000000000000000000000000000000000000
--- a/conversations/conv_040056.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "5636-41790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41790.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-168062.flac |",
-      "real_speaker_id": "3157",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.00005890076499,
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-      "utterance_id": "5636-57477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-57477.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.445127810994581,
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-      "real_speaker_id": "5636",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.372702038810264,
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-      "utterance_id": "6233-61743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61743.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.62428142955094,
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-      "duration": 4.3757185704490595,
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-      "utterance_id": "3157-68361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-68361.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "6233"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3157/laugh/0072.wav",
-      "duration": 1.28,
-      "start_time": 28.954111703308428,
-      "speaker_id": "3157"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3157/cough/0017.wav",
-      "duration": 0.96,
-      "start_time": 26.595574111107727,
-      "speaker_id": "3157"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040060.json b/conversations/conv_040060.json
deleted file mode 100644
index 2edd1afa4ad9e491f24ea27c749198724253f159..0000000000000000000000000000000000000000
--- a/conversations/conv_040060.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.824095433829882,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4160-11549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11549.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.005469281703564,
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-      "utterance_id": "3895-6855",
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-      "real_speaker_id": "3895",
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-      "utterance_id": "4160-11550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11550.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11549.flac |",
-      "real_speaker_id": "4160",
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-      "speaker_id": "3895"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040076.json b/conversations/conv_040076.json
deleted file mode 100644
index 532aa391ba034e0bd612da2fad8c126bb22572b3..0000000000000000000000000000000000000000
--- a/conversations/conv_040076.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "46-128001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
-      "real_speaker_id": "46",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173554.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.95304501138861,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 100630
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.806775657522152,
-      "end_time": 30.33221145695677,
-      "duration": 6.525435799434619,
-      "start_frame": 380908,
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-      "utterance_id": "154-123998",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-123998.flac |",
-      "real_speaker_id": "154",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.020386409767653,
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-      "utterance_id": "3571-173554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173554.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 85774
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040083.json b/conversations/conv_040083.json
deleted file mode 100644
index 3ca7ba5a626a33ff3717d4c11d68be9b82bb5731..0000000000000000000000000000000000000000
--- a/conversations/conv_040083.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2919-7270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7270.flac |",
-      "real_speaker_id": "2919",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7270.flac |",
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-      "real_speaker_id": "7460",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2919-7269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7269.flac |",
-      "real_speaker_id": "2919",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 29.987047894142155,
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-      "utterance_id": "7460-104483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-104483.flac |",
-      "real_speaker_id": "7460",
-      "position_frames": 79900
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-  ],
-  "background_events": [
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-      "start_time": 30.8,
-      "speaker_id": "7460"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040094.json b/conversations/conv_040094.json
deleted file mode 100644
index d14e1aa2115ac5ce6d44d20448ab65e3753447db..0000000000000000000000000000000000000000
--- a/conversations/conv_040094.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5910-53048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53048.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7679",
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-      "real_speaker_id": "5910",
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-      "position_frames": 196354
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "start_time": 30.76,
-      "speaker_id": "7679"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040095.json b/conversations/conv_040095.json
deleted file mode 100644
index b196b747bf45228901e31ce7cf7d1f95f9e14531..0000000000000000000000000000000000000000
--- a/conversations/conv_040095.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "7387-279272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7387-279272.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-103647.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 73743
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6660-103629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6660-103629.flac |",
-      "real_speaker_id": "6660",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
-      "duration": 0.236984126984127,
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 12.714282168192748,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/835/laugh/0071.wav",
-      "duration": 0.96,
-      "start_time": 27.42397646505444,
-      "speaker_id": "835"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6660/laugh/0018.wav",
-      "duration": 0.6109013166332831,
-      "start_time": 31.123740060521154,
-      "speaker_id": "6660"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040099.json b/conversations/conv_040099.json
deleted file mode 100644
index 5f8cf675c627d457caaea02ec51c5c59f4b48474..0000000000000000000000000000000000000000
--- a/conversations/conv_040099.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5772-43330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43330.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.021549187974013,
-      "end_time": 10.908884375085854,
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-      "utterance_id": "3864-185125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185125.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "637-127595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
-      "real_speaker_id": "637",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.518450533220992,
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-      "duration": 4.6794682320870535,
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-      "utterance_id": "3864-185125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185125.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 62197
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.22953608624237,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43330.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 100963
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5772-43316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43316.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_040102.json b/conversations/conv_040102.json
deleted file mode 100644
index d43404e721723c945027c4563dcfe7d4aef34381..0000000000000000000000000000000000000000
--- a/conversations/conv_040102.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.952519527584121,
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-      "utterance_id": "6030-70988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-70988.flac |",
-      "real_speaker_id": "6030",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration_frames": 54900,
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-      "utterance_id": "3114-170976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 99623
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.89354168578484,
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-      "duration_frames": 57757,
-      "overlap": false,
-      "utterance_id": "6030-57826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57826.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.814299440167755,
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-      "utterance_id": "3114-170976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 154523
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3187/laugh/0042.wav",
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-      "start_time": 5.676320035614591,
-      "speaker_id": "3187"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040105.json b/conversations/conv_040105.json
deleted file mode 100644
index fd28b8b151f20a835fe5f68e325959e000d28be7..0000000000000000000000000000000000000000
--- a/conversations/conv_040105.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.7940480579986473,
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-      "overlap": false,
-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.553087408727615,
-      "end_time": 8.157305009603235,
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-      "overlap": true,
-      "utterance_id": "359-128761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-128761.flac |",
-      "real_speaker_id": "359",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.972849318754989,
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-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 60704
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.230487449337565,
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-      "duration_frames": 67203,
-      "overlap": true,
-      "utterance_id": "118-47824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.07637423790662,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-47824.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 67203
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "359",
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 126512
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/118/laugh/0001.wav",
-      "duration": 1.56,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "4766"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040109.json b/conversations/conv_040109.json
deleted file mode 100644
index 85ca7179785334ecc29c6ba69ded8323a1e8a5e7..0000000000000000000000000000000000000000
--- a/conversations/conv_040109.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.67370353622663,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.84076467177708,
-      "duration": 6.84076467177708,
-      "start_frame": 0,
-      "duration_frames": 109452,
-      "overlap": false,
-      "utterance_id": "4156-12351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12351.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.343921934214773,
-      "end_time": 12.043031968021412,
-      "duration": 5.6991100338066385,
-      "start_frame": 101502,
-      "duration_frames": 91185,
-      "overlap": true,
-      "utterance_id": "4009-43916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4009-43916.flac |",
-      "real_speaker_id": "4009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.3772433559809,
-      "end_time": 18.24466602103478,
-      "duration": 4.867422665053881,
-      "start_frame": 214035,
-      "duration_frames": 77878,
-      "overlap": false,
-      "utterance_id": "4156-12351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12351.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 109452
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.808064464268647,
-      "end_time": 23.138887626425515,
-      "duration": 3.3308231621568662,
-      "start_frame": 316929,
-      "duration_frames": 53293,
-      "overlap": false,
-      "utterance_id": "4009-43903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4009-43903.flac |",
-      "real_speaker_id": "4009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.514732903468765,
-      "end_time": 27.576341386395555,
-      "duration": 4.0616084829267916,
-      "start_frame": 376235,
-      "duration_frames": 64985,
-      "overlap": true,
-      "utterance_id": "6538-81843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81843.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.61462413625805,
-      "end_time": 31.67370353622663,
-      "duration": 3.059079399968578,
-      "start_frame": 457833,
-      "duration_frames": 48945,
-      "overlap": true,
-      "utterance_id": "4009-43916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4009-43916.flac |",
-      "real_speaker_id": "4009",
-      "position_frames": 91185
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
-      "duration": 0.4329251700680272,
-      "start_time": 9.68896975690648
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4009/cough/0102.wav",
-      "duration": 0.7062921572701437,
-      "start_time": 12.12982084369388,
-      "speaker_id": "4009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040113.json b/conversations/conv_040113.json
deleted file mode 100644
index 2505f7dc9258bf8918900175af77ce5947e1b4d9..0000000000000000000000000000000000000000
--- a/conversations/conv_040113.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.318049597554676,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.553869630911873,
-      "duration": 4.553869630911873,
-      "start_frame": 0,
-      "duration_frames": 72861,
-      "overlap": false,
-      "utterance_id": "8148-286229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8148-286229.flac |",
-      "real_speaker_id": "8148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.998170369571325,
-      "end_time": 10.577953282152247,
-      "duration": 5.579782912580923,
-      "start_frame": 79970,
-      "duration_frames": 89276,
-      "overlap": false,
-      "utterance_id": "4856-12103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4856-12103.flac |",
-      "real_speaker_id": "4856",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.768679704915163,
-      "end_time": 15.315918083517076,
-      "duration": 5.547238378601912,
-      "start_frame": 156298,
-      "duration_frames": 88755,
-      "overlap": true,
-      "utterance_id": "3235-11599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-11599.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.041640329197783,
-      "end_time": 22.52916777943275,
-      "duration": 5.487527450234968,
-      "start_frame": 272666,
-      "duration_frames": 87800,
-      "overlap": false,
-      "utterance_id": "8148-286229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8148-286229.flac |",
-      "real_speaker_id": "8148",
-      "position_frames": 72861
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.978596621908704,
-      "end_time": 26.957134126438714,
-      "duration": 3.9785375045300104,
-      "start_frame": 367657,
-      "duration_frames": 63656,
-      "overlap": false,
-      "utterance_id": "4856-12103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4856-12103.flac |",
-      "real_speaker_id": "4856",
-      "position_frames": 89276
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.543120507332496,
-      "end_time": 31.318049597554676,
-      "duration": 3.774929090222181,
-      "start_frame": 440689,
-      "duration_frames": 60398,
-      "overlap": false,
-      "utterance_id": "8148-3956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8148-3956.flac |",
-      "real_speaker_id": "8148",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
-      "duration": 0.41732426303854875,
-      "start_time": 2.9011570492923178
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8148/laugh/0058.wav",
-      "duration": 0.63469759643327,
-      "start_time": 22.653753516574238,
-      "speaker_id": "8148"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040114.json b/conversations/conv_040114.json
deleted file mode 100644
index c7d79f7e27592f00e05ffa071de5b70fc689adcc..0000000000000000000000000000000000000000
--- a/conversations/conv_040114.json
+++ /dev/null
@@ -1,95 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.59014784898509,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.6302605629555345,
-      "duration": 6.6302605629555345,
-      "start_frame": 0,
-      "duration_frames": 106084,
-      "overlap": false,
-      "utterance_id": "1460-138289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138289.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.283880672293701,
-      "end_time": 11.910996422173849,
-      "duration": 4.627115749880147,
-      "start_frame": 116542,
-      "duration_frames": 74033,
-      "overlap": false,
-      "utterance_id": "1460-138289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138289.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 106084
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.701413391475938,
-      "end_time": 17.21081777449352,
-      "duration": 4.50940438301758,
-      "start_frame": 203222,
-      "duration_frames": 72150,
-      "overlap": false,
-      "utterance_id": "568-127952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-127952.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.596372947999928,
-      "end_time": 24.411475682972103,
-      "duration": 5.815102734972177,
-      "start_frame": 297541,
-      "duration_frames": 93041,
-      "overlap": false,
-      "utterance_id": "1460-138290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.096459716239764,
-      "end_time": 31.59014784898509,
-      "duration": 6.493688132745326,
-      "start_frame": 401543,
-      "duration_frames": 103899,
-      "overlap": false,
-      "utterance_id": "1460-138290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 93041
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 10.418655227664091,
-      "start_time": 10.681432834035387
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
-      "duration": 3.3358413452389635,
-      "start_time": 19.529810536684106
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_040125.json b/conversations/conv_040125.json
deleted file mode 100644
index 4826c87b453c2c38cd1e0a7ebddef5bf9c57d221..0000000000000000000000000000000000000000
--- a/conversations/conv_040125.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19886287198124,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.851772590729642,
-      "duration": 3.851772590729642,
-      "start_frame": 0,
-      "duration_frames": 61628,
-      "overlap": false,
-      "utterance_id": "4899-32637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32637.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.069368798919941,
-      "end_time": 11.050296964175102,
-      "duration": 6.980928165255161,
-      "start_frame": 65109,
-      "duration_frames": 111694,
-      "overlap": false,
-      "utterance_id": "37-215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-215.flac |",
-      "real_speaker_id": "37",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.167849139765096,
-      "end_time": 16.13266778536801,
-      "duration": 4.9648186456029135,
-      "start_frame": 178685,
-      "duration_frames": 79437,
-      "overlap": true,
-      "utterance_id": "6724-73990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73990.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.844077030998825,
-      "end_time": 21.371220196365815,
-      "duration": 3.527143165366991,
-      "start_frame": 285505,
-      "duration_frames": 56434,
-      "overlap": false,
-      "utterance_id": "37-215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-215.flac |",
-      "real_speaker_id": "37",
-      "position_frames": 111694
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.81496726311697,
-      "end_time": 26.54625547508775,
-      "duration": 4.7312882119707815,
-      "start_frame": 349039,
-      "duration_frames": 75700,
-      "overlap": false,
-      "utterance_id": "6724-73990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73990.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 79437
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.48158446541435,
-      "end_time": 31.19886287198124,
-      "duration": 4.717278406566891,
-      "start_frame": 423705,
-      "duration_frames": 75476,
-      "overlap": true,
-      "utterance_id": "37-214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-214.flac |",
-      "real_speaker_id": "37",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
-      "duration": 3.5966878249440253,
-      "start_time": 28.051048144971105
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4899/laugh/0050.wav",
-      "duration": 1.2,
-      "start_time": 4.092341531955463,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6724/laugh/0044.wav",
-      "duration": 1.0800534053117041,
-      "start_time": 9.886763219575418,
-      "speaker_id": "6724"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040129.json b/conversations/conv_040129.json
deleted file mode 100644
index f8c6cbf476350af96888499985227633aefa577c..0000000000000000000000000000000000000000
--- a/conversations/conv_040129.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.409451100499581,
-      "duration": 4.409451100499581,
-      "start_frame": 0,
-      "duration_frames": 70551,
-      "overlap": false,
-      "utterance_id": "7402-59171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-59171.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.577781557936355,
-      "end_time": 10.814457419165578,
-      "duration": 6.236675861229223,
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-      "duration_frames": 99786,
-      "overlap": true,
-      "utterance_id": "7597-101858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101858.flac |",
-      "real_speaker_id": "7597",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.687323009969628,
-      "end_time": 16.99508890373918,
-      "duration": 5.3077658937695515,
-      "start_frame": 186997,
-      "duration_frames": 84924,
-      "overlap": false,
-      "utterance_id": "7402-59171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-59171.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 70551
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "7597-101859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101859.flac |",
-      "real_speaker_id": "7597",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6351-64714.flac |",
-      "real_speaker_id": "6351",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-59171.flac |",
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-      "speaker_id": "7402"
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-    {
-      "event_class": "laugh",
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-      "start_time": 22.448609969891407,
-      "speaker_id": "7597"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7402/laugh/0045.wav",
-      "duration": 0.5923201815013512,
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-      "speaker_id": "7402"
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-      "speaker_id": "7402"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_040133.json b/conversations/conv_040133.json
deleted file mode 100644
index bbb9197e0799a771311afda4c8b8bc251ad66058..0000000000000000000000000000000000000000
--- a/conversations/conv_040133.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2004-147173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147173.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.074070426275908,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147173.flac |",
-      "real_speaker_id": "2004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
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-      "real_speaker_id": "2004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3747-173589.flac |",
-      "real_speaker_id": "3747",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147173.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-      "start_time": 30.56,
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-      "event_class": "cough",
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-      "speaker_id": "2004"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040143.json b/conversations/conv_040143.json
deleted file mode 100644
index cbacd1037d8fa9ccd32400320f9277dc2baa4340..0000000000000000000000000000000000000000
--- a/conversations/conv_040143.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "5791-31920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31920.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "5791",
-      "position_frames": 81260
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-    {
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-      "overlap": false,
-      "utterance_id": "5460-24509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-24509.flac |",
-      "real_speaker_id": "5460",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-      "speaker_id": "5791"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040144.json b/conversations/conv_040144.json
deleted file mode 100644
index 8fea2028e6803d33626e13e8e25edcb8e0ff129c..0000000000000000000000000000000000000000
--- a/conversations/conv_040144.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-    {
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
-      "duration": 3.412111203218097,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1225/laugh/0129.wav",
-      "duration": 1.0373714773335632,
-      "start_time": 1.8840582494306954,
-      "speaker_id": "1225"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1225/cough/0116.wav",
-      "duration": 0.9793089173932161,
-      "start_time": 0,
-      "speaker_id": "1225"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1225/cough/0078.wav",
-      "duration": 0.6221812295301212,
-      "start_time": 9.46437686934594,
-      "speaker_id": "1225"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040148.json b/conversations/conv_040148.json
deleted file mode 100644
index 9aff9bed68f90597aa5f060d787aade82c8a1ead..0000000000000000000000000000000000000000
--- a/conversations/conv_040148.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.359938563227798,
-      "duration": 5.359938563227798,
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-      "overlap": false,
-      "utterance_id": "2989-138028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138028.flac |",
-      "real_speaker_id": "2989",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.9615738607351005,
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-      "duration": 4.284993597234802,
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-      "utterance_id": "2246-131710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2246-131710.flac |",
-      "real_speaker_id": "2246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.874008288984065,
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-      "start_frame": 173984,
-      "duration_frames": 52651,
-      "overlap": false,
-      "utterance_id": "277-127368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-127368.flac |",
-      "real_speaker_id": "277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.66061614592368,
-      "end_time": 19.892702370068477,
-      "duration": 5.232086224144796,
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-      "overlap": false,
-      "utterance_id": "2246-131710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2246-131710.flac |",
-      "real_speaker_id": "2246",
-      "position_frames": 68559
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.455908662992663,
-      "end_time": 25.606466708434997,
-      "duration": 5.150558045442335,
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-      "duration_frames": 82408,
-      "overlap": false,
-      "utterance_id": "2989-138035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138035.flac |",
-      "real_speaker_id": "2989",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.10213418012596,
-      "end_time": 29.452447261691418,
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-      "duration_frames": 53605,
-      "overlap": false,
-      "utterance_id": "277-127368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-127368.flac |",
-      "real_speaker_id": "277",
-      "position_frames": 52651
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.254949762394254,
-      "end_time": 32.0,
-      "duration": 1.7450502376057457,
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-      "utterance_id": "2246-131710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2246-131710.flac |",
-      "real_speaker_id": "2246",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_2.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2246/laugh/0058.wav",
-      "duration": 1.16,
-      "start_time": 10.443008161640327,
-      "speaker_id": "2246"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2246/laugh/0103.wav",
-      "duration": 1.24,
-      "start_time": 16.785382015612587,
-      "speaker_id": "2246"
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-    {
-      "event_class": "cough",
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-      "duration": 0.8288344052069601,
-      "start_time": 29.496103880552933,
-      "speaker_id": "277"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040152.json b/conversations/conv_040152.json
deleted file mode 100644
index 668a062240b6f9acc63fa50b4900a3dd5ac56c6e..0000000000000000000000000000000000000000
--- a/conversations/conv_040152.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3977-87547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-87547.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.999102426068603,
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-      "utterance_id": "3238-134398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 0
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-      "start_time": 10.724211503365382,
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-      "overlap": true,
-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.468128576209384,
-      "end_time": 23.15572614417399,
-      "duration": 5.687597567964607,
-      "start_frame": 279490,
-      "duration_frames": 91001,
-      "overlap": false,
-      "utterance_id": "3238-134398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 79311
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.787936307329215,
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-      "duration": 4.511904991547354,
-      "start_frame": 380606,
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-      "overlap": false,
-      "utterance_id": "3977-87547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-87547.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 92911
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.424114015441198,
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-      "duration": 3.575885984558802,
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-      "duration_frames": 57214,
-      "overlap": false,
-      "utterance_id": "3238-134398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3238-134398.flac |",
-      "real_speaker_id": "3238",
-      "position_frames": 170312
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
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-      "start_time": 15.423803706645149
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_040155.json b/conversations/conv_040155.json
deleted file mode 100644
index f4adc760047e4d110584b3b8d8667e1ab8d2f677..0000000000000000000000000000000000000000
--- a/conversations/conv_040155.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "19-227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.211065744839168,
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-      "utterance_id": "2487-162474",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-162474.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
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-    {
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-      "utterance_id": "19-227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 56744
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.996346049587956,
-      "end_time": 21.88037211900966,
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-      "utterance_id": "2487-169011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169011.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3885-1193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-1193.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "start_frame": 467462,
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-      "overlap": false,
-      "utterance_id": "2487-169011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169011.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 94144
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/19/laugh/0062.wav",
-      "duration": 1.56,
-      "start_time": 15.380080916721884,
-      "speaker_id": "19"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2487/laugh/0049.wav",
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-      "start_time": 21.88115696961518,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2487/laugh/0140.wav",
-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "2487"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040164.json b/conversations/conv_040164.json
deleted file mode 100644
index 06071d39e9c53b27a222d879abd16e84bce5015d..0000000000000000000000000000000000000000
--- a/conversations/conv_040164.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.587515132303169,
-      "duration": 6.587515132303169,
-      "start_frame": 0,
-      "duration_frames": 105400,
-      "overlap": false,
-      "utterance_id": "1445-139397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139397.flac |",
-      "real_speaker_id": "1445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.369265964563132,
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-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1445-139404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139404.flac |",
-      "real_speaker_id": "1445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.438876199488103,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139404.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_040168.json b/conversations/conv_040168.json
deleted file mode 100644
index c263f3fb139121a5a4c0d3309385ea230124a519..0000000000000000000000000000000000000000
--- a/conversations/conv_040168.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "5252",
-      "position_frames": 0
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-      "real_speaker_id": "3436",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_040169.json b/conversations/conv_040169.json
deleted file mode 100644
index 7c1ad76d43b937108cf97d755d3f1aba9c5ca15b..0000000000000000000000000000000000000000
--- a/conversations/conv_040169.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_040172.json b/conversations/conv_040172.json
deleted file mode 100644
index 2bf730650ed6bd6dfec40a659ac80c3f6c437e03..0000000000000000000000000000000000000000
--- a/conversations/conv_040172.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_040186.json b/conversations/conv_040186.json
deleted file mode 100644
index a0d64a1bf03cdb047c8ff050d729500e5a1b800b..0000000000000000000000000000000000000000
--- a/conversations/conv_040186.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-      "start_time": 17.265900251200907,
-      "speaker_id": "3869"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040187.json b/conversations/conv_040187.json
deleted file mode 100644
index 935c984c32e194f91d0fe162e1ad852f499d4e0e..0000000000000000000000000000000000000000
--- a/conversations/conv_040187.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "544",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
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-      "position_frames": 105910
-    },
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-      "speaker_id": 1,
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-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.52498392797048,
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-      "utterance_id": "544-121090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
-      "real_speaker_id": "544",
-      "position_frames": 68170
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-      "segment_id": "seg0005",
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-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 83559
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_040191.json b/conversations/conv_040191.json
deleted file mode 100644
index e0ae749861291f3fb2bbdce9593f39960e5c7e9d..0000000000000000000000000000000000000000
--- a/conversations/conv_040191.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-14653.flac |",
-      "real_speaker_id": "1212",
-      "position_frames": 0
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-      "real_speaker_id": "331",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-14653.flac |",
-      "real_speaker_id": "1212",
-      "position_frames": 143359
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_040200.json b/conversations/conv_040200.json
deleted file mode 100644
index 2ff02b692559b1a7cc542a552a86b1ede140a854..0000000000000000000000000000000000000000
--- a/conversations/conv_040200.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1260-139266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139266.flac |",
-      "real_speaker_id": "1260",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139272.flac |",
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-    {
-      "segment_id": "seg0005",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_040216.json b/conversations/conv_040216.json
deleted file mode 100644
index 346add6969f404043f489fa242cd1e1a0ed002a1..0000000000000000000000000000000000000000
--- a/conversations/conv_040216.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139310.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 103540
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-162667.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 76500
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-  "background_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/949/cough/0045.wav",
-      "duration": 0.7454880903109806,
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-      "event_class": "laugh",
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-      "duration": 0.6779292923296556,
-      "start_time": 28.8854338921202,
-      "speaker_id": "949"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040220.json b/conversations/conv_040220.json
deleted file mode 100644
index de4ab857c0fda476a5997893272ada6127518ae1..0000000000000000000000000000000000000000
--- a/conversations/conv_040220.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.613080178947895,
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-      "utterance_id": "8772-270777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.901499874876948,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3465-20021.flac |",
-      "real_speaker_id": "3465",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-12539.flac |",
-      "real_speaker_id": "3003",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8772-270777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 73809
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.687403461150204,
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-      "start_frame": 378998,
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-      "overlap": true,
-      "utterance_id": "3003-14274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-14274.flac |",
-      "real_speaker_id": "3003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.088448351830152,
-      "end_time": 32.0,
-      "duration": 1.9115516481698478,
-      "start_frame": 481415,
-      "duration_frames": 30584,
-      "overlap": false,
-      "utterance_id": "3465-20022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3465-20022.flac |",
-      "real_speaker_id": "3465",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "speaker_id": "3465"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040236.json b/conversations/conv_040236.json
deleted file mode 100644
index 41478c4ad76070875c25aef8e4b747dbf7e332ed..0000000000000000000000000000000000000000
--- a/conversations/conv_040236.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5746-48361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48361.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "7495-252341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-252341.flac |",
-      "real_speaker_id": "7495",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.134697748403042,
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-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 50051
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48361.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 60028
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-    {
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7495/laugh/0094.wav",
-      "duration": 1.16,
-      "start_time": 15.554870631822224,
-      "speaker_id": "7495"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040240.json b/conversations/conv_040240.json
deleted file mode 100644
index 46427ce34efbd07c549ced480bd940edea483812..0000000000000000000000000000000000000000
--- a/conversations/conv_040240.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4546-16781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7177-258965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258965.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.507964722326783,
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-      "duration": 0.4920352776732173,
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-      "utterance_id": "7177-258977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258977.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4546/cough/0103.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7177/cough/0049.wav",
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-      "start_time": 31.39584691553805,
-      "speaker_id": "7177"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040241.json b/conversations/conv_040241.json
deleted file mode 100644
index 952fecfa34cdb7c44bf4d51b630c9bb157252393..0000000000000000000000000000000000000000
--- a/conversations/conv_040241.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.02477426343264,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5290-39475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5290",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7769-99397.flac |",
-      "real_speaker_id": "7769",
-      "position_frames": 0
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-      "utterance_id": "1851-148962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.741485843271594,
-      "end_time": 30.616866376914736,
-      "duration": 5.875380533643141,
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-      "overlap": false,
-      "utterance_id": "7769-99396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7769-99396.flac |",
-      "real_speaker_id": "7769",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.86714526405484,
-      "end_time": 31.02477426343264,
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-      "utterance_id": "1851-148962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 89646
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
-      "duration": 4.765858808619151,
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
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-      "start_time": 5.527995220036428
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7769/cough/0096.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7769/cough/0085.wav",
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-      "start_time": 30.64156745429774,
-      "speaker_id": "7769"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1851/laugh/0017.wav",
-      "duration": 1.5280614876012208,
-      "start_time": 28.095499846844064,
-      "speaker_id": "1851"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040250.json b/conversations/conv_040250.json
deleted file mode 100644
index c1553858f2763fe397b183f810f935710daf6ad2..0000000000000000000000000000000000000000
--- a/conversations/conv_040250.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.618183316162989,
-      "duration": 5.618183316162989,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.871186280506572,
-      "end_time": 10.921400497563006,
-      "duration": 4.050214217056434,
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-      "duration_frames": 64803,
-      "overlap": false,
-      "utterance_id": "3381-9921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
-      "real_speaker_id": "3381",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.123419261293247,
-      "end_time": 15.488210852343585,
-      "duration": 4.364791591050337,
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-      "overlap": false,
-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 89890
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.121175785102075,
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-      "duration": 3.699820269775577,
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-      "duration_frames": 59197,
-      "overlap": false,
-      "utterance_id": "111-126277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126277.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.388461828066113,
-      "end_time": 25.92576549584157,
-      "duration": 5.537303667775459,
-      "start_frame": 326215,
-      "duration_frames": 88596,
-      "overlap": false,
-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 159726
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.68022040404883,
-      "end_time": 32.0,
-      "duration": 5.319779595951172,
-      "start_frame": 426883,
-      "duration_frames": 85116,
-      "overlap": false,
-      "utterance_id": "679-155529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/679-155529.flac |",
-      "real_speaker_id": "679",
-      "position_frames": 248322
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
-      "duration": 0.35356009070294786,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/679/cough/0033.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/111/cough/0046.wav",
-      "duration": 0.7713495444338283,
-      "start_time": 19.880966745774987,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/679/cough/0013.wav",
-      "duration": 1.2187488249498246,
-      "start_time": 30.781251175050176,
-      "speaker_id": "679"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040257.json b/conversations/conv_040257.json
deleted file mode 100644
index d612c37e1bcddf838fff0b7cf91aa2a701759779..0000000000000000000000000000000000000000
--- a/conversations/conv_040257.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5636-57477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-57477.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.682959297301956,
-      "end_time": 8.975831084176786,
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-      "utterance_id": "5233-28389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28389.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.499304057004117,
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-      "overlap": false,
-      "utterance_id": "5636-41790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41790.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.646050818953363,
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-      "duration": 3.803290592075088,
-      "start_frame": 250336,
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-      "overlap": false,
-      "utterance_id": "2836-5355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5355.flac |",
-      "real_speaker_id": "2836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.577730162873507,
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-      "start_frame": 313243,
-      "duration_frames": 88829,
-      "overlap": true,
-      "utterance_id": "5233-28389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28389.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 68685
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "end_time": 30.685135302802262,
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-      "overlap": false,
-      "utterance_id": "5636-41795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41795.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.293838848357296,
-      "end_time": 32.0,
-      "duration": 0.7061611516427035,
-      "start_frame": 500701,
-      "duration_frames": 11298,
-      "overlap": false,
-      "utterance_id": "5233-28389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28389.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 157514
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
-      "duration": 0.6518367346938776,
-      "start_time": 17.128341872028315
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_10.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5233/cough/0028.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5636/cough/0096.wav",
-      "duration": 1.2055741113282583,
-      "start_time": 11.59237849658978,
-      "speaker_id": "5636"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5233/cough/0020.wav",
-      "duration": 0.8210225738331496,
-      "start_time": 25.1948440078463,
-      "speaker_id": "5233"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5233/cough/0026.wav",
-      "duration": 0.5693852029341266,
-      "start_time": 31.430614797065875,
-      "speaker_id": "5233"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040261.json b/conversations/conv_040261.json
deleted file mode 100644
index b400c89132f0526c7f96269c15a6a72d0e230f7f..0000000000000000000000000000000000000000
--- a/conversations/conv_040261.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.83840982895887,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.412041875170576,
-      "duration": 6.412041875170576,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7008-34667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7008-34667.flac |",
-      "real_speaker_id": "7008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.160272283262299,
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-      "overlap": true,
-      "utterance_id": "6215-62347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-62347.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.206319600526891,
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-      "duration_frames": 77587,
-      "overlap": true,
-      "utterance_id": "8050-110238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8050-110238.flac |",
-      "real_speaker_id": "8050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.785097734935565,
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-      "utterance_id": "6215-62347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-62347.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 106178
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.175629348735903,
-      "end_time": 31.83840982895887,
-      "duration": 6.662780480222967,
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-      "utterance_id": "7008-34667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7008-34667.flac |",
-      "real_speaker_id": "7008",
-      "position_frames": 102592
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-      "start_time": 21.58496499921092
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6215/laugh/0009.wav",
-      "duration": 1.2,
-      "start_time": 5.660333070007616,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8050/laugh/0094.wav",
-      "duration": 1.4479948586076148,
-      "start_time": 12.49137658425894,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6215/cough/0060.wav",
-      "duration": 1.18,
-      "start_time": 18.6007512562815,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7008/cough/0027.wav",
-      "duration": 0.587051592515518,
-      "start_time": 26.00819832098994,
-      "speaker_id": "7008"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040277.json b/conversations/conv_040277.json
deleted file mode 100644
index ae8d1d3bb2c1b225b802ef62332daf5b5366ae52..0000000000000000000000000000000000000000
--- a/conversations/conv_040277.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.031386150359197,
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-      "start_frame": 0,
-      "duration_frames": 80502,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5703.flac |",
-      "real_speaker_id": "3537",
-      "position_frames": 103728
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
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-      "position_frames": 181227
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040282.json b/conversations/conv_040282.json
deleted file mode 100644
index 018257762587c47dc9a917d7487df153b450f1f2..0000000000000000000000000000000000000000
--- a/conversations/conv_040282.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72205.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.196140572362296,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164100.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72210.flac |",
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-      "real_speaker_id": "2992",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "event_class": "Running_water",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040285.json b/conversations/conv_040285.json
deleted file mode 100644
index ea81a52bb17e51f81b390a993fc498501187f07c..0000000000000000000000000000000000000000
--- a/conversations/conv_040285.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6674-71400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6674-71400.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "6674",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 65064,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4923.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 69131
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "5340-8682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8682.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_040293.json b/conversations/conv_040293.json
deleted file mode 100644
index 45ad198f530b41284744ae28a2e337e496357a1e..0000000000000000000000000000000000000000
--- a/conversations/conv_040293.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
-      "duration": 13.479076414312187,
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
-      "duration": 0.4961451247165533,
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "2407"
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 4.410357513959789,
-      "speaker_id": "2407"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1717/laugh/0065.wav",
-      "duration": 1.36,
-      "start_time": 21.142890506378112,
-      "speaker_id": "1717"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2407/laugh/0106.wav",
-      "duration": 1.36,
-      "start_time": 24.464596319140334,
-      "speaker_id": "2407"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2407/laugh/0119.wav",
-      "duration": 1.0020173604227973,
-      "start_time": 30.997982639577202,
-      "speaker_id": "2407"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040294.json b/conversations/conv_040294.json
deleted file mode 100644
index 61189158af5f0ddfc4152121fae31c0731ffc3a6..0000000000000000000000000000000000000000
--- a/conversations/conv_040294.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.126109332067124,
-      "duration": 5.126109332067124,
-      "start_frame": 0,
-      "duration_frames": 82017,
-      "overlap": false,
-      "utterance_id": "8527-281131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.177261859463581,
-      "end_time": 9.960157543098678,
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-      "utterance_id": "8527-281131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 82017
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.078479772757866,
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-      "duration_frames": 51701,
-      "overlap": false,
-      "utterance_id": "8527-281131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 142543
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.237369376377012,
-      "end_time": 19.187546340198722,
-      "duration": 4.950176963821708,
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-      "utterance_id": "791-127519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/791-127519.flac |",
-      "real_speaker_id": "791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.04493070338104,
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-      "utterance_id": "713-115881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/713-115881.flac |",
-      "real_speaker_id": "713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.280678116217754,
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-      "duration_frames": 66822,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/791-127519.flac |",
-      "real_speaker_id": "791",
-      "position_frames": 79202
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.774396843636957,
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-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "8527"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040298.json b/conversations/conv_040298.json
deleted file mode 100644
index 46fa169d1721b5dd75ac0ee130b3332a2911d061..0000000000000000000000000000000000000000
--- a/conversations/conv_040298.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2481-156738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-156738.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.559215462993665,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-158816.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 10.774664066697262,
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-      "duration_frames": 88207,
-      "overlap": false,
-      "utterance_id": "2481-163597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-163597.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.787707678952337,
-      "end_time": 20.449846359249268,
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-      "overlap": false,
-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.333451905812147,
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-      "utterance_id": "2481-163597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-163597.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 88207
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 4.826887764600407,
-      "start_frame": 434769,
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-      "overlap": false,
-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 58594
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
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-      "start_time": 14.424607358223318
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_040304.json b/conversations/conv_040304.json
deleted file mode 100644
index 04afbe3bebf0be87aed1d542156eb3040539fef8..0000000000000000000000000000000000000000
--- a/conversations/conv_040304.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.600567717602168,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-100145.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.241619642811465,
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-      "utterance_id": "1058-133263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-133263.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 110965
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.00415568795969,
-      "end_time": 32.0,
-      "duration": 1.9958443120403118,
-      "start_frame": 480066,
-      "duration_frames": 31933,
-      "overlap": false,
-      "utterance_id": "5604-26956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
-      "position_frames": 90268
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5604/laugh/0011.wav",
-      "duration": 1.32,
-      "start_time": 30.331850370740096,
-      "speaker_id": "5604"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040305.json b/conversations/conv_040305.json
deleted file mode 100644
index 86295ad78eb7834a6f1bdc3d4cc6f7d7f81c8688..0000000000000000000000000000000000000000
--- a/conversations/conv_040305.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.532504454435191,
-      "duration": 6.532504454435191,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2836-5354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5354.flac |",
-      "real_speaker_id": "2836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.173544107379386,
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-      "overlap": false,
-      "utterance_id": "6454-93938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-93938.flac |",
-      "real_speaker_id": "6454",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.923551502983926,
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-      "utterance_id": "2836-5354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5354.flac |",
-      "real_speaker_id": "2836",
-      "position_frames": 104520
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "6454-93938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-93938.flac |",
-      "real_speaker_id": "6454",
-      "position_frames": 84536
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "duration": 4.666291851851504,
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-      "utterance_id": "2836-5354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5354.flac |",
-      "real_speaker_id": "2836",
-      "position_frames": 233105
-    }
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6454/laugh/0031.wav",
-      "duration": 0.5268109271671146,
-      "start_time": 23.042298653389174,
-      "speaker_id": "6454"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2836/cough/0005.wav",
-      "duration": 0.64,
-      "start_time": 26.68366270049151,
-      "speaker_id": "2836"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040308.json b/conversations/conv_040308.json
deleted file mode 100644
index 53430993c5a45cace83053aa1980d441eab13b39..0000000000000000000000000000000000000000
--- a/conversations/conv_040308.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.5953324451696,
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-      "duration_frames": 73525,
-      "overlap": false,
-      "utterance_id": "2003-143255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143255.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.9699132011550216,
-      "end_time": 11.824999700740818,
-      "duration": 6.855086499585797,
-      "start_frame": 79518,
-      "duration_frames": 109681,
-      "overlap": false,
-      "utterance_id": "1874-143361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-143361.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.365458056810505,
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-      "duration_frames": 94069,
-      "overlap": false,
-      "utterance_id": "2003-143254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.359120109769396,
-      "end_time": 21.648771753062164,
-      "duration": 3.2896516432927685,
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-      "duration_frames": 52634,
-      "overlap": false,
-      "utterance_id": "1874-165702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-165702.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.128201790171907,
-      "end_time": 27.557563459977054,
-      "duration": 5.429361669805148,
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-      "overlap": false,
-      "utterance_id": "2003-143255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143255.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 73525
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.76804389772299,
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-      "duration": 3.0612975167947187,
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-      "duration_frames": 48980,
-      "overlap": false,
-      "utterance_id": "1874-165702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1874-165702.flac |",
-      "real_speaker_id": "1874",
-      "position_frames": 52634
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.028878284436843,
-      "end_time": 32.0,
-      "duration": 0.9711217155631573,
-      "start_frame": 496462,
-      "duration_frames": 15537,
-      "overlap": false,
-      "utterance_id": "2003-143254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 94069
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 2.343950543189338,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.780874100110016,
-      "start_time": 11.870734312692477
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2003/laugh/0054.wav",
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-      "start_time": 0.7298404265540666,
-      "speaker_id": "2003"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2003/laugh/0124.wav",
-      "duration": 1.24,
-      "start_time": 18.455010937385552,
-      "speaker_id": "2003"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2003/laugh/0099.wav",
-      "duration": 0.8121872626709168,
-      "start_time": 31.187812737329082,
-      "speaker_id": "2003"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040312.json b/conversations/conv_040312.json
deleted file mode 100644
index 25d436f9109f82f5d429870821934b2caeaf7a30..0000000000000000000000000000000000000000
--- a/conversations/conv_040312.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.876306841036875,
-      "duration": 4.876306841036875,
-      "start_frame": 0,
-      "duration_frames": 78020,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.2963865472727365,
-      "end_time": 11.043225605882611,
-      "duration": 5.746839058609875,
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-      "utterance_id": "1060-134451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 90825,
-      "overlap": false,
-      "utterance_id": "807-124223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 78020
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.052775374328345,
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-      "duration_frames": 59350,
-      "overlap": false,
-      "utterance_id": "1060-134451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 91949
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.11627806990061,
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-      "duration": 6.686846730565114,
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-      "overlap": false,
-      "utterance_id": "7783-107486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107486.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.120421122057405,
-      "end_time": 32.0,
-      "duration": 1.8795788779425955,
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-      "duration_frames": 30073,
-      "overlap": false,
-      "utterance_id": "7783-107487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107487.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/807/cough/0015.wav",
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-      "duration": 1.24,
-      "start_time": 7.146136992821054,
-      "speaker_id": "1060"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/807/laugh/0117.wav",
-      "duration": 0.92,
-      "start_time": 10.367812961554394,
-      "speaker_id": "807"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1060/laugh/0091.wav",
-      "duration": 1.0944581406726543,
-      "start_time": 16.67037521946545,
-      "speaker_id": "1060"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040315.json b/conversations/conv_040315.json
deleted file mode 100644
index cff99df3cc3b273dff209d2f94704d8081e8a8cd..0000000000000000000000000000000000000000
--- a/conversations/conv_040315.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.524637493321044,
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-      "overlap": false,
-      "utterance_id": "4235-7631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7631.flac |",
-      "real_speaker_id": "4235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.7720466925303007,
-      "end_time": 7.969026518779485,
-      "duration": 4.196979826249184,
-      "start_frame": 60352,
-      "duration_frames": 67151,
-      "overlap": true,
-      "utterance_id": "1974-139742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139742.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.792891831654567,
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-      "overlap": true,
-      "utterance_id": "4235-7631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7631.flac |",
-      "real_speaker_id": "4235",
-      "position_frames": 56394
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.085403258574111,
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-      "duration_frames": 100493,
-      "overlap": false,
-      "utterance_id": "1974-139741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139741.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.915850272328534,
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-      "utterance_id": "1974-139741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139741.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 100493
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.721222457629352,
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-      "duration": 5.278777542370648,
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-      "utterance_id": "4235-7633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7633.flac |",
-      "real_speaker_id": "4235",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4235/laugh/0017.wav",
-      "duration": 1.5109339177966403,
-      "start_time": 7.233547543305051,
-      "speaker_id": "4235"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040324.json b/conversations/conv_040324.json
deleted file mode 100644
index 86f45c569a7644e952a13e74dbdefd2c333f506c..0000000000000000000000000000000000000000
--- a/conversations/conv_040324.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.83878629243589,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.59891918490884,
-      "duration": 3.59891918490884,
-      "start_frame": 0,
-      "duration_frames": 57582,
-      "overlap": false,
-      "utterance_id": "779-123710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123710.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.004579441693567,
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-      "duration": 6.825907813396372,
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-      "utterance_id": "3554-165435",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-165435.flac |",
-      "real_speaker_id": "3554",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 62941,
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-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123710.flac |",
-      "real_speaker_id": "779",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 62941
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.92061693833702,
-      "end_time": 31.83878629243589,
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-      "duration_frames": 78690,
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-      "utterance_id": "3554-163609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-163609.flac |",
-      "real_speaker_id": "3554",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "start_time": 22.094358900514717
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/779/laugh/0128.wav",
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-      "start_time": 1.5767623467749243,
-      "speaker_id": "779"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1031/cough/0100.wav",
-      "duration": 0.7625164740872534,
-      "start_time": 25.268654192925403,
-      "speaker_id": "1031"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3554/laugh/0110.wav",
-      "duration": 1.76,
-      "start_time": 30.24,
-      "speaker_id": "3554"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040328.json b/conversations/conv_040328.json
deleted file mode 100644
index 7a754a9292cda9693201e346d03f112a9d633806..0000000000000000000000000000000000000000
--- a/conversations/conv_040328.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.792252420249476,
-      "duration": 4.792252420249476,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.396791069058015,
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-      "utterance_id": "2201-151776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2201-151776.flac |",
-      "real_speaker_id": "2201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.237031991748099,
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-      "duration_frames": 111383,
-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 76676
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.031917327667433,
-      "end_time": 23.0744034604086,
-      "duration": 5.0424861327411685,
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-      "duration_frames": 80679,
-      "overlap": true,
-      "utterance_id": "2201-7371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2201-7371.flac |",
-      "real_speaker_id": "2201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.134262725143707,
-      "end_time": 28.168716432870728,
-      "duration": 4.03445370772702,
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-      "utterance_id": "3157-119295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-119295.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.79515235797549,
-      "end_time": 32.0,
-      "duration": 3.204847642024511,
-      "start_frame": 460722,
-      "duration_frames": 51277,
-      "overlap": false,
-      "utterance_id": "2201-7371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2201-7371.flac |",
-      "real_speaker_id": "2201",
-      "position_frames": 80679
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-      "start_time": 22.253478611231934
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "2201"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040332.json b/conversations/conv_040332.json
deleted file mode 100644
index cd91ad9b1217dedf9aa7c0a93023a6d4b213c3a7..0000000000000000000000000000000000000000
--- a/conversations/conv_040332.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2652-157644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2652-157644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 48411
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-      "segment_id": "seg0002",
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-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.99058345606606,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.18754037375881,
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-      "overlap": false,
-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 86967
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 138091
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7208/laugh/0069.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2652/laugh/0054.wav",
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-      "start_time": 27.57334840462427,
-      "speaker_id": "2652"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040339.json b/conversations/conv_040339.json
deleted file mode 100644
index a14de80d71d22d9ea2e81a4cd2ea905053bc0150..0000000000000000000000000000000000000000
--- a/conversations/conv_040339.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "149-125750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125750.flac |",
-      "real_speaker_id": "149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.076221225874101,
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-      "utterance_id": "4260-176853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4260-176853.flac |",
-      "real_speaker_id": "4260",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "149-125750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125750.flac |",
-      "real_speaker_id": "149",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "3780",
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 23.114061017305794,
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-      "utterance_id": "149-125750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125750.flac |",
-      "real_speaker_id": "149",
-      "position_frames": 144949
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "4260-176854",
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-      "real_speaker_id": "4260",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040345.json b/conversations/conv_040345.json
deleted file mode 100644
index 1fd1f1c91014cf25c514415552a9455a7183a8ea..0000000000000000000000000000000000000000
--- a/conversations/conv_040345.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.214953498609339,
-      "duration": 6.214953498609339,
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-      "utterance_id": "3157-168062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-168062.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5043",
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-      "utterance_id": "5043-28396",
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-      "utterance_id": "3157-168062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-168062.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 99439
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.26683737441156,
-      "end_time": 29.388896016881695,
-      "duration": 5.122058642470135,
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-      "duration_frames": 81952,
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-      "utterance_id": "5043-28396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 87488
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.65858703988184,
-      "end_time": 32.0,
-      "duration": 2.3414129601181592,
-      "start_frame": 474537,
-      "duration_frames": 37462,
-      "overlap": false,
-      "utterance_id": "5043-28396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 169440
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_14.wav",
-      "duration": 1.5647845804988663,
-      "start_time": 4.930468020081114
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
-      "duration": 1.7517687074829933,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5043/laugh/0057.wav",
-      "duration": 1.12,
-      "start_time": 29.537973124387513,
-      "speaker_id": "5043"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5043/laugh/0000.wav",
-      "duration": 1.36,
-      "start_time": 28.199964360453396,
-      "speaker_id": "5043"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040349.json b/conversations/conv_040349.json
deleted file mode 100644
index 0b24ceafcbb15143da2474e763619464d0fb2fa7..0000000000000000000000000000000000000000
--- a/conversations/conv_040349.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.3266098797959,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.935162341215991,
-      "duration": 3.935162341215991,
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-      "overlap": false,
-      "utterance_id": "2992-164100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164100.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.033200733448505,
-      "end_time": 10.079811881193493,
-      "duration": 5.046611147744988,
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-      "overlap": false,
-      "utterance_id": "4719-25766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.260282183658465,
-      "end_time": 15.595352133270726,
-      "duration": 4.3350699496122616,
-      "start_frame": 180164,
-      "duration_frames": 69361,
-      "overlap": false,
-      "utterance_id": "2992-164101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164101.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.15924953559081,
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-      "duration": 5.97905548325587,
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-      "duration_frames": 95664,
-      "overlap": false,
-      "utterance_id": "7883-113275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113275.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.385495980869784,
-      "end_time": 27.953292101898644,
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-      "duration_frames": 89084,
-      "overlap": false,
-      "utterance_id": "7883-260944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-260944.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.702816468575325,
-      "end_time": 31.3266098797959,
-      "duration": 3.623793411220575,
-      "start_frame": 443245,
-      "duration_frames": 57980,
-      "overlap": true,
-      "utterance_id": "2992-164101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164101.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 69361
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
-      "duration": 14.907210884353741,
-      "start_time": 4.060089383094206
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-  "foreground_events": [
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2992/laugh/0033.wav",
-      "duration": 0.92,
-      "start_time": 0,
-      "speaker_id": "2992"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4719/laugh/0087.wav",
-      "duration": 1.7479588510620596,
-      "start_time": 10.174737127686736,
-      "speaker_id": "4719"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7883/laugh/0014.wav",
-      "duration": 0.5443398667268673,
-      "start_time": 22.377153100853683,
-      "speaker_id": "7883"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7883/cough/0055.wav",
-      "duration": 0.5433042944197515,
-      "start_time": 21.735533951577022,
-      "speaker_id": "7883"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040353.json b/conversations/conv_040353.json
deleted file mode 100644
index 43b93b07a77d491e6f3b8028aba90a075094efad..0000000000000000000000000000000000000000
--- a/conversations/conv_040353.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.868044520671097,
-      "duration": 5.868044520671097,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.923439772411959,
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-      "duration": 4.614570164223141,
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-      "overlap": false,
-      "utterance_id": "439-122809",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-122809.flac |",
-      "real_speaker_id": "439",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4441-76263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76263.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.068759190726542,
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-      "start_frame": 273100,
-      "duration_frames": 84110,
-      "overlap": true,
-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 93888
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.46919564319964,
-      "end_time": 26.869728105979583,
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-      "start_frame": 375507,
-      "duration_frames": 54408,
-      "overlap": false,
-      "utterance_id": "439-122810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-122810.flac |",
-      "real_speaker_id": "439",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.63896705482881,
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-      "duration": 4.361032945171189,
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-      "duration_frames": 69776,
-      "overlap": false,
-      "utterance_id": "4441-76262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76262.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "start_time": 4.360077026075813
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-      "start_time": 10.669771881622024
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-    {
-      "event_class": "Dog",
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-      "duration": 0.27267573696145125,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8476/laugh/0021.wav",
-      "duration": 1.4,
-      "start_time": 4.011649070365798,
-      "speaker_id": "8476"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/439/laugh/0010.wav",
-      "duration": 1.2278387259427168,
-      "start_time": 5.566553244852003,
-      "speaker_id": "439"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/439/cough/0094.wav",
-      "duration": 0.45854956232450184,
-      "start_time": 11.670580631890529,
-      "speaker_id": "439"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/439/laugh/0053.wav",
-      "duration": 1.12,
-      "start_time": 22.207990002658647,
-      "speaker_id": "439"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/439/cough/0105.wav",
-      "duration": 1.36,
-      "start_time": 24.580557966988906,
-      "speaker_id": "439"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4441/laugh/0093.wav",
-      "duration": 1.0,
-      "start_time": 26.398471061085214,
-      "speaker_id": "4441"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040365.json b/conversations/conv_040365.json
deleted file mode 100644
index 88a05ca957a9545b50952694d1aebcf7252046be..0000000000000000000000000000000000000000
--- a/conversations/conv_040365.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.649204582273367,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.914165665441793,
-      "duration": 5.914165665441793,
-      "start_frame": 0,
-      "duration_frames": 94626,
-      "overlap": false,
-      "utterance_id": "4813-248641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.353491017942464,
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-      "overlap": false,
-      "utterance_id": "4015-4878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-4878.flac |",
-      "real_speaker_id": "4015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.897841489204604,
-      "end_time": 20.170422396904065,
-      "duration": 6.272580907699463,
-      "start_frame": 222365,
-      "duration_frames": 100361,
-      "overlap": true,
-      "utterance_id": "2272-150674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-150674.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.605133302854842,
-      "end_time": 27.12607572680001,
-      "duration": 5.520942423945167,
-      "start_frame": 345682,
-      "duration_frames": 88335,
-      "overlap": false,
-      "utterance_id": "4015-63729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-63729.flac |",
-      "real_speaker_id": "4015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.99008999567025,
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-      "duration": 4.659114586603117,
-      "start_frame": 431841,
-      "duration_frames": 74545,
-      "overlap": true,
-      "utterance_id": "4015-63729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-63729.flac |",
-      "real_speaker_id": "4015",
-      "position_frames": 88335
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
-      "duration": 0.9632426303854875,
-      "start_time": 6.349768392422876
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4015/cough/0136.wav",
-      "duration": 0.7375379506671447,
-      "start_time": 26.06734319424663,
-      "speaker_id": "4015"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040369.json b/conversations/conv_040369.json
deleted file mode 100644
index 2f56b648595d0b7486f21a7cc472f7bc2561b0f9..0000000000000000000000000000000000000000
--- a/conversations/conv_040369.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.853320515864976,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.557560640112747,
-      "duration": 5.557560640112747,
-      "start_frame": 0,
-      "duration_frames": 88920,
-      "overlap": false,
-      "utterance_id": "7297-92812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7297-92812.flac |",
-      "real_speaker_id": "7297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.980940603963866,
-      "end_time": 10.069924122041927,
-      "duration": 4.088983518078061,
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-      "utterance_id": "3967-29012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-29012.flac |",
-      "real_speaker_id": "3967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.636441730945855,
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-      "speaker_id": "3967"
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-      "speaker_id": "7297"
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\ No newline at end of file
diff --git a/conversations/conv_040373.json b/conversations/conv_040373.json
deleted file mode 100644
index d014ad20dadc44427d756a5ee9efb8b776e3dd45..0000000000000000000000000000000000000000
--- a/conversations/conv_040373.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "115-121896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121896.flac |",
-      "real_speaker_id": "115",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121896.flac |",
-      "real_speaker_id": "115",
-      "position_frames": 100324
-    },
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18450.flac |",
-      "real_speaker_id": "5036",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18450.flac |",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_040378.json b/conversations/conv_040378.json
deleted file mode 100644
index 87060e3e60d3703752a34abf4690d818ecedf084..0000000000000000000000000000000000000000
--- a/conversations/conv_040378.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "real_speaker_id": "4813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_040381.json b/conversations/conv_040381.json
deleted file mode 100644
index 0776e0974886af9836cd2efaa6ca28c76d13bb9f..0000000000000000000000000000000000000000
--- a/conversations/conv_040381.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.261471548525517,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-73712.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-126864.flac |",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "1487",
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-      "speaker_id": 1,
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-      "real_speaker_id": "253",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 67438
-    },
-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_040386.json b/conversations/conv_040386.json
deleted file mode 100644
index 4fdcd3b090081bdab3662261ec98e8f3cc62b17b..0000000000000000000000000000000000000000
--- a/conversations/conv_040386.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.42812117349424,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8008-271812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271812.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 8.029549937116933,
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-      "real_speaker_id": "8799",
-      "position_frames": 0
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-    {
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-      "utterance_id": "8799-270794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-270794.flac |",
-      "real_speaker_id": "8799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.787904383790334,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271817.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8008-271812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271812.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 101619
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
-      "duration": 1.994519361525351,
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377982.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8799/laugh/0067.wav",
-      "duration": 1.5394596057586218,
-      "start_time": 13.770981785235596,
-      "speaker_id": "8799"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040390.json b/conversations/conv_040390.json
deleted file mode 100644
index 858fb7a31487f12e273b754af5bdffee1ff9034f..0000000000000000000000000000000000000000
--- a/conversations/conv_040390.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.584836153692627,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "211-122425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122425.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.691058244214155,
-      "end_time": 10.517328947460786,
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-      "utterance_id": "211-122425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122425.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 89357
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-      "speaker_id": 1,
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-      "utterance_id": "5224-35453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35453.flac |",
-      "real_speaker_id": "5224",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 17.228761771988196,
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-      "utterance_id": "5979-42001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42001.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.996112546115377,
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-      "utterance_id": "5224-35456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35456.flac |",
-      "real_speaker_id": "5224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.74480856677988,
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-      "utterance_id": "211-122442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122442.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.00598478004642,
-      "end_time": 32.0,
-      "duration": 0.9940152199535817,
-      "start_frame": 496095,
-      "duration_frames": 15904,
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-      "utterance_id": "5224-35456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5224-35456.flac |",
-      "real_speaker_id": "5224",
-      "position_frames": 81397
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040397.json b/conversations/conv_040397.json
deleted file mode 100644
index 398a7b365ffc853cc6708a7f5dac8ad4e01bd882..0000000000000000000000000000000000000000
--- a/conversations/conv_040397.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5914-52087",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52087.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-169642.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "5914-52088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.74390266307168,
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-      "utterance_id": "884-129800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.897486762380332,
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-      "start_frame": 398359,
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-      "overlap": false,
-      "utterance_id": "3245-6194",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-6194.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.502578247897503,
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-      "duration": 0.49742175210249684,
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-      "utterance_id": "5914-52087",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52087.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 51432
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 9.450530515329843
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5914/laugh/0022.wav",
-      "duration": 1.16,
-      "start_time": 3.3176414868929833,
-      "speaker_id": "5914"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3245/cough/0121.wav",
-      "duration": 0.8991753397836324,
-      "start_time": 30.814074862417232,
-      "speaker_id": "3245"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040401.json b/conversations/conv_040401.json
deleted file mode 100644
index 9b91c832896cd9e7c59db2e745c69f73d29c7fec..0000000000000000000000000000000000000000
--- a/conversations/conv_040401.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 83579,
-      "overlap": false,
-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.6184953095842545,
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-      "overlap": false,
-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.746593767177222,
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-      "start_frame": 171945,
-      "duration_frames": 77589,
-      "overlap": false,
-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.23255846014615,
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-      "duration_frames": 105634,
-      "overlap": false,
-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 72722
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.41899611759611,
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-      "duration": 4.981563367899523,
-      "start_frame": 358703,
-      "duration_frames": 79705,
-      "overlap": true,
-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 77589
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.679007783991295,
-      "end_time": 32.0,
-      "duration": 3.3209922160087046,
-      "start_frame": 458864,
-      "duration_frames": 53135,
-      "overlap": false,
-      "utterance_id": "567-127934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/567-127934.flac |",
-      "real_speaker_id": "567",
-      "position_frames": 178356
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_4.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/567/laugh/0027.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5791/laugh/0117.wav",
-      "duration": 1.48,
-      "start_time": 20.704737512895733,
-      "speaker_id": "5791"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5791/cough/0025.wav",
-      "duration": 0.3542060865307746,
-      "start_time": 22.983988855687798,
-      "speaker_id": "5791"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/567/laugh/0028.wav",
-      "duration": 0.86,
-      "start_time": 30.972147059530922,
-      "speaker_id": "567"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/567/cough/0027.wav",
-      "duration": 1.112853743126513,
-      "start_time": 27.40701213912359,
-      "speaker_id": "567"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040406.json b/conversations/conv_040406.json
deleted file mode 100644
index dfcce48f1c53bf7c3319cd8cebf5bf8f7baa010b..0000000000000000000000000000000000000000
--- a/conversations/conv_040406.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.02654946545137,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.48006957650206,
-      "duration": 4.48006957650206,
-      "start_frame": 0,
-      "duration_frames": 71681,
-      "overlap": false,
-      "utterance_id": "3656-168609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168609.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.374910767928416,
-      "end_time": 8.914140776496218,
-      "duration": 4.5392300085678015,
-      "start_frame": 69998,
-      "duration_frames": 72627,
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-      "utterance_id": "6555-398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.946028217485958,
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-      "utterance_id": "6555-398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 72627
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.43810015986,
-      "end_time": 21.765311714294036,
-      "duration": 6.327211554434035,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 140724
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3656-168609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168609.flac |",
-      "real_speaker_id": "3656",
-      "position_frames": 71681
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.623061630565648,
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-      "utterance_id": "6555-398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 241959
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
-      "duration": 0.9632426303854875,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6555/laugh/0069.wav",
-      "duration": 1.08,
-      "start_time": 16.45076044916936,
-      "speaker_id": "6555"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040410.json b/conversations/conv_040410.json
deleted file mode 100644
index ff663a2f7eeea8db4104d0b7b534703fc9faa2c5..0000000000000000000000000000000000000000
--- a/conversations/conv_040410.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.34279490179169,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.330235321503144,
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-      "start_frame": 0,
-      "duration_frames": 101283,
-      "overlap": false,
-      "utterance_id": "6689-64264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64264.flac |",
-      "real_speaker_id": "6689",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.046812589036357,
-      "end_time": 10.286135527021317,
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-      "overlap": true,
-      "utterance_id": "1961-145733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-145733.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.168667024189677,
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-      "duration": 4.070801457865965,
-      "start_frame": 178698,
-      "duration_frames": 65132,
-      "overlap": false,
-      "utterance_id": "1961-149738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-149738.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.493989467161587,
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-      "duration": 3.716788518273477,
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-      "duration_frames": 59468,
-      "overlap": false,
-      "utterance_id": "6689-64286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64286.flac |",
-      "real_speaker_id": "6689",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.43036000404609,
-      "end_time": 25.872840926048607,
-      "duration": 6.442480922002518,
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-      "duration_frames": 103079,
-      "overlap": true,
-      "utterance_id": "8143-278223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.171996054022188,
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-      "overlap": false,
-      "utterance_id": "1961-149739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-149739.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "paralinguistic_events": [
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-    {
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-      "speaker_id": "1961"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040417.json b/conversations/conv_040417.json
deleted file mode 100644
index bb24fe00ddac07a3441f06124fd6b716eb666b6e..0000000000000000000000000000000000000000
--- a/conversations/conv_040417.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.176337614401264,
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-      "utterance_id": "6978-86037",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-86037.flac |",
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-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 88522
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 163593
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6978-86037",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-86037.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 61934
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.735325840264508,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 269019
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 5.633878410615298,
-      "speaker_id": "6160"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6978/laugh/0040.wav",
-      "duration": 1.48,
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-      "speaker_id": "6978"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040426.json b/conversations/conv_040426.json
deleted file mode 100644
index eb7312d47b625f227d75d00db691bd6850746530..0000000000000000000000000000000000000000
--- a/conversations/conv_040426.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.84059577053548,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.915794050851258,
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-      "overlap": false,
-      "utterance_id": "8080-3961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-3961.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 103983,
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-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 86230
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.044515022022615,
-      "end_time": 26.38896383865669,
-      "duration": 6.344448816634074,
-      "start_frame": 320712,
-      "duration_frames": 101511,
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-      "utterance_id": "8080-3961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-3961.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 94039
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.717264738203117,
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-      "duration": 5.123331032332361,
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-      "duration_frames": 81973,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 190213
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040430.json b/conversations/conv_040430.json
deleted file mode 100644
index 3d7d716eaed96253da744dbc51f5b394d36d4ecd..0000000000000000000000000000000000000000
--- a/conversations/conv_040430.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.2204092013353676,
-      "duration": 3.2204092013353676,
-      "start_frame": 0,
-      "duration_frames": 51526,
-      "overlap": false,
-      "utterance_id": "2574-128303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128303.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "4310-14908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "2574",
-      "position_frames": 51526
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.380318608772,
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-      "duration": 6.075870889555862,
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-      "utterance_id": "2256-137627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137627.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.966374581507257,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128303.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 161350
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-      "start_time": 0.0620837849518047,
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040440.json b/conversations/conv_040440.json
deleted file mode 100644
index 1f93339c01a2c63825999075a800b9fff7d5dc87..0000000000000000000000000000000000000000
--- a/conversations/conv_040440.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.37716901548345,
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-      "utterance_id": "5831-98684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-98684.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.645155674270098,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "4277-185519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185519.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.23829257297243,
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-      "utterance_id": "4277-185517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185517.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.13843172596424,
-      "end_time": 28.164161885779258,
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-      "overlap": true,
-      "utterance_id": "7113-86041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 98182
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.593314481292772,
-      "end_time": 32.0,
-      "duration": 2.406685518707228,
-      "start_frame": 473493,
-      "duration_frames": 38506,
-      "overlap": false,
-      "utterance_id": "5831-98689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-98689.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4277/laugh/0094.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4277/cough/0001.wav",
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-      "start_time": 22.548887980829463,
-      "speaker_id": "4277"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040447.json b/conversations/conv_040447.json
deleted file mode 100644
index 7cd8f1f68e299285988459693b9ceb3785377dc2..0000000000000000000000000000000000000000
--- a/conversations/conv_040447.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.989839651673541,
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-      "utterance_id": "7553-101289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101289.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7553-101278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3638-696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 51381
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.85319064461209,
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-      "duration_frames": 77275,
-      "overlap": false,
-      "utterance_id": "7553-101278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 65247
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.78145808617831,
-      "end_time": 32.0,
-      "duration": 1.2185419138216886,
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-      "duration_frames": 19496,
-      "overlap": false,
-      "utterance_id": "3638-758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-758.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2517/laugh/0037.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "2517"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7553/laugh/0038.wav",
-      "duration": 1.2,
-      "start_time": 11.760442135649356,
-      "speaker_id": "7553"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3638/laugh/0119.wav",
-      "duration": 1.6,
-      "start_time": 30.4,
-      "speaker_id": "3638"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040451.json b/conversations/conv_040451.json
deleted file mode 100644
index 13d83a433719ce5d84b7843494b8c7bb996fb7f7..0000000000000000000000000000000000000000
--- a/conversations/conv_040451.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.377024160721106,
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-      "overlap": false,
-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.553056205178655,
-      "end_time": 13.33211039051659,
-      "duration": 6.779054185337935,
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-      "duration_frames": 108464,
-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.047111456908812,
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-      "duration_frames": 77186,
-      "overlap": false,
-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 102032
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.223289596273307,
-      "end_time": 23.354144538603233,
-      "duration": 3.130854942329926,
-      "start_frame": 323572,
-      "duration_frames": 50093,
-      "overlap": false,
-      "utterance_id": "1624-142933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.73944530138606,
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-      "overlap": false,
-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 179218
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 2.9883164261290744,
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-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 108464
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 24.95312722589781
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/81/cough/0101.wav",
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-      "start_time": 5.417179852155271,
-      "speaker_id": "81"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2733/laugh/0044.wav",
-      "duration": 1.28,
-      "start_time": 19.022441562304568,
-      "speaker_id": "2733"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1624/laugh/0016.wav",
-      "duration": 1.12,
-      "start_time": 18.86890903170237,
-      "speaker_id": "1624"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/81/laugh/0016.wav",
-      "duration": 1.6705543380184094,
-      "start_time": 29.126874298241187,
-      "speaker_id": "81"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040456.json b/conversations/conv_040456.json
deleted file mode 100644
index 1e6346fc49f9863110fd90998602c712e3033ddc..0000000000000000000000000000000000000000
--- a/conversations/conv_040456.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_040467.json b/conversations/conv_040467.json
deleted file mode 100644
index 68e269dfeb325c4d367774470b78caa83176cd5b..0000000000000000000000000000000000000000
--- a/conversations/conv_040467.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5652-19215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-19215.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
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-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_040470.json b/conversations/conv_040470.json
deleted file mode 100644
index e18b5ff12ff60cf68cfd2ade6303185de88f1315..0000000000000000000000000000000000000000
--- a/conversations/conv_040470.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_040471.json b/conversations/conv_040471.json
deleted file mode 100644
index 954a67848502179d7bad5990ddf1091602729b9b..0000000000000000000000000000000000000000
--- a/conversations/conv_040471.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5471/laugh/0121.wav",
-      "duration": 0.7781753898068207,
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-      "speaker_id": "5471"
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-      "duration": 0.8029498344236834,
-      "start_time": 23.349959475646845,
-      "speaker_id": "3807"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_040484.json b/conversations/conv_040484.json
deleted file mode 100644
index b70a8fb6ebd43e69fad8a59f379742597964fd55..0000000000000000000000000000000000000000
--- a/conversations/conv_040484.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3192-4910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4910.flac |",
-      "real_speaker_id": "3192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.371462176129344,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "3192-4911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4911.flac |",
-      "real_speaker_id": "3192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.604980926396514,
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-      "utterance_id": "3440-171006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 108813
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.153797873763004,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3192-4911.flac |",
-      "real_speaker_id": "3192",
-      "position_frames": 83780
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6848-76049",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6848-76049.flac |",
-      "real_speaker_id": "6848",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-      "speaker_id": "6848"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040488.json b/conversations/conv_040488.json
deleted file mode 100644
index 1c0dcf5b479747e73ed4f6f9cf65c0f4ab9328d2..0000000000000000000000000000000000000000
--- a/conversations/conv_040488.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.344352504378286,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-359.flac |",
-      "real_speaker_id": "730",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
-      "real_speaker_id": "8479",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3909-149794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-149794.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-11695.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
-      "real_speaker_id": "8479",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_040492.json b/conversations/conv_040492.json
deleted file mode 100644
index 29358df98dc26afbd2b5e19489fa14883199ac6c..0000000000000000000000000000000000000000
--- a/conversations/conv_040492.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
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-      "real_speaker_id": "4110",
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-    {
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-      "utterance_id": "2562-133442",
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-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_040493.json b/conversations/conv_040493.json
deleted file mode 100644
index b92225c65c7be08eb4eb2a9ae227c1b8b50f6eac..0000000000000000000000000000000000000000
--- a/conversations/conv_040493.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7584/laugh/0010.wav",
-      "duration": 1.32,
-      "start_time": 15.3735142113497,
-      "speaker_id": "7584"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1094/laugh/0024.wav",
-      "duration": 1.0445129607179826,
-      "start_time": 30.57304524495082,
-      "speaker_id": "1094"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1094/cough/0037.wav",
-      "duration": 1.24,
-      "start_time": 25.241321537205025,
-      "speaker_id": "1094"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040502.json b/conversations/conv_040502.json
deleted file mode 100644
index 6fc7576841a7dfa3a57595578cc83a950f8cb5a6..0000000000000000000000000000000000000000
--- a/conversations/conv_040502.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.649944124363415,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.207059435571816,
-      "duration": 4.207059435571816,
-      "start_frame": 0,
-      "duration_frames": 67312,
-      "overlap": false,
-      "utterance_id": "5538-70919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5538-70919.flac |",
-      "real_speaker_id": "5538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.580945087946579,
-      "end_time": 9.198579440006538,
-      "duration": 4.61763435205996,
-      "start_frame": 73295,
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-      "overlap": false,
-      "utterance_id": "5185-24770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5185-24770.flac |",
-      "real_speaker_id": "5185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.67271719598105,
-      "end_time": 14.915957823307426,
-      "duration": 5.243240627326376,
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-      "duration_frames": 83891,
-      "overlap": false,
-      "utterance_id": "6724-73990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73990.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.070261879615835,
-      "end_time": 19.797795270027322,
-      "duration": 3.727533390411489,
-      "start_frame": 257124,
-      "duration_frames": 59640,
-      "overlap": false,
-      "utterance_id": "5538-64717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5538-64717.flac |",
-      "real_speaker_id": "5538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.77428256784812,
-      "end_time": 24.223831469744198,
-      "duration": 3.4495489018960743,
-      "start_frame": 332388,
-      "duration_frames": 55192,
-      "overlap": false,
-      "utterance_id": "6724-74002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-74002.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.48003376972186,
-      "end_time": 27.219806339519252,
-      "duration": 3.739772569797393,
-      "start_frame": 375680,
-      "duration_frames": 59836,
-      "overlap": true,
-      "utterance_id": "5185-24772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5185-24772.flac |",
-      "real_speaker_id": "5185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.25096966666347,
-      "end_time": 31.649944124363415,
-      "duration": 3.398974457699947,
-      "start_frame": 452015,
-      "duration_frames": 54383,
-      "overlap": false,
-      "utterance_id": "6724-74002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-74002.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 55192
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_2.wav",
-      "duration": 1.5157596371882087,
-      "start_time": 16.922532102103336
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
-      "duration": 1.0443083900226757,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6724/laugh/0076.wav",
-      "duration": 0.9758138530340471,
-      "start_time": 10.260933463334045,
-      "speaker_id": "6724"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6724/cough/0025.wav",
-      "duration": 0.793425690059723,
-      "start_time": 8.702067901225224,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5538/cough/0058.wav",
-      "duration": 1.082321869327397,
-      "start_time": 14.91769217157292,
-      "speaker_id": "5538"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040505.json b/conversations/conv_040505.json
deleted file mode 100644
index ba53f76bded4cfb5b0c1bcd47baa31b75b653cc9..0000000000000000000000000000000000000000
--- a/conversations/conv_040505.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.46087359940836,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.3861364088848,
-      "duration": 5.3861364088848,
-      "start_frame": 0,
-      "duration_frames": 86178,
-      "overlap": false,
-      "utterance_id": "497-129325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-129325.flac |",
-      "real_speaker_id": "497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.8013495885663104,
-      "end_time": 11.585720255678218,
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-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.09182210871867,
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-      "duration": 4.84956279586195,
-      "start_frame": 193469,
-      "duration_frames": 77593,
-      "overlap": false,
-      "utterance_id": "669-129061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129061.flac |",
-      "real_speaker_id": "669",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.20546461157343,
-      "end_time": 22.567062628434826,
-      "duration": 5.3615980168613975,
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-      "duration_frames": 85785,
-      "overlap": false,
-      "utterance_id": "497-125118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
-      "real_speaker_id": "497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.410031871733004,
-      "end_time": 28.251423105463566,
-      "duration": 4.841391233730563,
-      "start_frame": 374560,
-      "duration_frames": 77462,
-      "overlap": false,
-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.058280283671714,
-      "end_time": 31.46087359940836,
-      "duration": 3.4025933157366453,
-      "start_frame": 448932,
-      "duration_frames": 54441,
-      "overlap": true,
-      "utterance_id": "669-129074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129074.flac |",
-      "real_speaker_id": "669",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 16.561632653061224,
-      "start_time": 0.1760373992741258
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
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-      "start_time": 6.992533196059765
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
-      "duration": 0.672108843537415,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/497/cough/0050.wav",
-      "duration": 0.92,
-      "start_time": 0,
-      "speaker_id": "497"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/669/cough/0089.wav",
-      "duration": 1.3977133246531166,
-      "start_time": 28.59707323899373,
-      "speaker_id": "669"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040513.json b/conversations/conv_040513.json
deleted file mode 100644
index 198454bb243dc90c863e2ac4b0cd59bb4d06b178..0000000000000000000000000000000000000000
--- a/conversations/conv_040513.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19029552582363,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7436-97467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97467.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.101777877123726,
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-      "duration": 3.4225984217232734,
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-      "duration_frames": 54761,
-      "overlap": false,
-      "utterance_id": "79-121541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.232162914347462,
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-      "duration_frames": 74448,
-      "overlap": false,
-      "utterance_id": "7436-97467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97467.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 99542
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.098082266615286,
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-      "duration": 6.425884838750125,
-      "start_frame": 257569,
-      "duration_frames": 102814,
-      "overlap": false,
-      "utterance_id": "79-121541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/79-121541.flac |",
-      "real_speaker_id": "79",
-      "position_frames": 54761
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.714092785361693,
-      "end_time": 26.05622767415991,
-      "duration": 3.342134888798217,
-      "start_frame": 363425,
-      "duration_frames": 53474,
-      "overlap": false,
-      "utterance_id": "7436-97461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97461.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.328469852313688,
-      "end_time": 31.19029552582363,
-      "duration": 4.861825673509939,
-      "start_frame": 421255,
-      "duration_frames": 77789,
-      "overlap": false,
-      "utterance_id": "421-124401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/79/cough/0060.wav",
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-      "start_time": 10.712910561786286,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7436/laugh/0096.wav",
-      "duration": 0.8271215672157832,
-      "start_time": 10.235342050770004,
-      "speaker_id": "7436"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7436/cough/0070.wav",
-      "duration": 0.7707957987518139,
-      "start_time": 26.22064941114865,
-      "speaker_id": "7436"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/421/cough/0018.wav",
-      "duration": 0.8093688404013462,
-      "start_time": 30.01195113123591,
-      "speaker_id": "421"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040514.json b/conversations/conv_040514.json
deleted file mode 100644
index dd3340f1106395c9f34eb4a0f5ba812884cb7cfe..0000000000000000000000000000000000000000
--- a/conversations/conv_040514.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.50064804292793,
-      "duration": 5.50064804292793,
-      "start_frame": 0,
-      "duration_frames": 88010,
-      "overlap": false,
-      "utterance_id": "8470-286675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286675.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.90410613478625,
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-      "duration_frames": 103010,
-      "overlap": false,
-      "utterance_id": "6251-93270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6251-93270.flac |",
-      "real_speaker_id": "6251",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.004923019381568,
-      "end_time": 17.42541572305535,
-      "duration": 4.420492703673785,
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-      "overlap": false,
-      "utterance_id": "298-126791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126791.flac |",
-      "real_speaker_id": "298",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.335117169370516,
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-      "utterance_id": "6251-94836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6251-94836.flac |",
-      "real_speaker_id": "6251",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.23717719931048,
-      "end_time": 30.514477887908416,
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-      "duration_frames": 100436,
-      "overlap": true,
-      "utterance_id": "298-126791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126791.flac |",
-      "real_speaker_id": "298",
-      "position_frames": 70727
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.18278236724649,
-      "end_time": 32.0,
-      "duration": 0.8172176327535112,
-      "start_frame": 498924,
-      "duration_frames": 13075,
-      "overlap": false,
-      "utterance_id": "8470-279797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
-      "duration": 19.987882753876168,
-      "start_time": 9.162607212056503
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.2621239742978707,
-      "start_time": 5.894690325477177
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6251/cough/0068.wav",
-      "duration": 1.2916681115095419,
-      "start_time": 6.829825885907544,
-      "speaker_id": "6251"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040518.json b/conversations/conv_040518.json
deleted file mode 100644
index 788f29246052f57107f47bf3dce10a62aee0e08d..0000000000000000000000000000000000000000
--- a/conversations/conv_040518.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.891683842716312,
-      "duration": 4.891683842716312,
-      "start_frame": 0,
-      "duration_frames": 78266,
-      "overlap": false,
-      "utterance_id": "6553-82558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-82558.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.612105160171478,
-      "end_time": 9.139559619107652,
-      "duration": 3.5274544589361745,
-      "start_frame": 89793,
-      "duration_frames": 56439,
-      "overlap": false,
-      "utterance_id": "8474-281188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8474-281188.flac |",
-      "real_speaker_id": "8474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.797154901843527,
-      "end_time": 15.48691235985208,
-      "duration": 5.689757458008555,
-      "start_frame": 156754,
-      "duration_frames": 91036,
-      "overlap": true,
-      "utterance_id": "6553-82558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-82558.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 78266
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.746889287141293,
-      "end_time": 20.61544742885239,
-      "duration": 3.868558141711098,
-      "start_frame": 267950,
-      "duration_frames": 61896,
-      "overlap": false,
-      "utterance_id": "5133-80690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.22648434688162,
-      "end_time": 27.51641412430631,
-      "duration": 6.289929777424689,
-      "start_frame": 339623,
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-      "overlap": false,
-      "utterance_id": "8474-281187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8474-281187.flac |",
-      "real_speaker_id": "8474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.30707535476389,
-      "end_time": 32.0,
-      "duration": 3.6929246452361113,
-      "start_frame": 452913,
-      "duration_frames": 59086,
-      "overlap": false,
-      "utterance_id": "5133-80690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 61896
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
-      "duration": 19.62082193222259,
-      "start_time": 2.67988758723378
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_5.wav",
-      "duration": 1.0079818594104308,
-      "start_time": 16.13050994464237
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
-      "duration": 0.5341496598639456,
-      "start_time": 4.524502569991424
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8474/laugh/0054.wav",
-      "duration": 1.0,
-      "start_time": 4.491209953010748,
-      "speaker_id": "8474"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8474/cough/0016.wav",
-      "duration": 1.121372521641567,
-      "start_time": 9.329724338959881,
-      "speaker_id": "8474"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5133/cough/0001.wav",
-      "duration": 0.37387844703494943,
-      "start_time": 20.809292711109368,
-      "speaker_id": "5133"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5133/cough/0103.wav",
-      "duration": 1.3982949529712698,
-      "start_time": 30.60170504702873,
-      "speaker_id": "5133"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040522.json b/conversations/conv_040522.json
deleted file mode 100644
index 85504393c6ee9a07bbfacf89a7ac4c4e5d6458bb..0000000000000000000000000000000000000000
--- a/conversations/conv_040522.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.7112483688891125,
-      "duration": 6.7112483688891125,
-      "start_frame": 0,
-      "duration_frames": 107379,
-      "overlap": false,
-      "utterance_id": "6918-61317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-61317.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.455105434159055,
-      "end_time": 10.734341555672481,
-      "duration": 3.279236121513426,
-      "start_frame": 119281,
-      "duration_frames": 52467,
-      "overlap": false,
-      "utterance_id": "8272-279781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.441186598794381,
-      "end_time": 14.882510909099192,
-      "duration": 3.441324310304811,
-      "start_frame": 183058,
-      "duration_frames": 55061,
-      "overlap": false,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.583274052697053,
-      "end_time": 20.071438532921942,
-      "duration": 4.488164480224889,
-      "start_frame": 249332,
-      "duration_frames": 71810,
-      "overlap": false,
-      "utterance_id": "8272-279789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.523075983535,
-      "end_time": 26.03947341800303,
-      "duration": 5.51639743446803,
-      "start_frame": 328369,
-      "duration_frames": 88262,
-      "overlap": false,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 55061
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.909974502270074,
-      "end_time": 30.3943653683724,
-      "duration": 3.484390866102326,
-      "start_frame": 430559,
-      "duration_frames": 55750,
-      "overlap": false,
-      "utterance_id": "8272-279781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 52467
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.025631251622677,
-      "end_time": 32.0,
-      "duration": 0.9743687483773229,
-      "start_frame": 496410,
-      "duration_frames": 15589,
-      "overlap": false,
-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 143323
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-      "start_time": 2.922772324028971
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 1.2650101417331463,
-      "start_time": 24.524571525794453
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6918/laugh/0040.wav",
-      "duration": 1.48,
-      "start_time": 5.099009894966776,
-      "speaker_id": "6918"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6918/cough/0034.wav",
-      "duration": 0.5184361193657832,
-      "start_time": 1.3019575537601062,
-      "speaker_id": "6918"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8272/laugh/0088.wav",
-      "duration": 1.56,
-      "start_time": 15.860968628141705,
-      "speaker_id": "8272"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8272/cough/0034.wav",
-      "duration": 1.2118269413199174,
-      "start_time": 14.217270100934794,
-      "speaker_id": "8272"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/cough/0045.wav",
-      "duration": 0.648899053378162,
-      "start_time": 19.812666397625698,
-      "speaker_id": "845"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040534.json b/conversations/conv_040534.json
deleted file mode 100644
index 9c01634e0a0cb3b735665b9fd8926e259bb7b178..0000000000000000000000000000000000000000
--- a/conversations/conv_040534.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.82393968230794,
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-      "start_frame": 0,
-      "duration_frames": 93183,
-      "overlap": false,
-      "utterance_id": "44-201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.6441911376154055,
-      "end_time": 13.485524748480685,
-      "duration": 6.841333610865279,
-      "start_frame": 106307,
-      "duration_frames": 109461,
-      "overlap": false,
-      "utterance_id": "548-126961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.98046305721968,
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-      "duration": 4.627827395644779,
-      "start_frame": 223687,
-      "duration_frames": 74045,
-      "overlap": false,
-      "utterance_id": "7245-104890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104890.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.466863052798093,
-      "end_time": 21.93918776354603,
-      "duration": 3.4723247107479374,
-      "start_frame": 295469,
-      "duration_frames": 55557,
-      "overlap": true,
-      "utterance_id": "44-207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-207.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.75448723094811,
-      "end_time": 28.081309494507245,
-      "duration": 5.326822263559132,
-      "start_frame": 364071,
-      "duration_frames": 85229,
-      "overlap": false,
-      "utterance_id": "7245-104890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104890.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 74045
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.413362203837234,
-      "end_time": 31.486471697901074,
-      "duration": 3.073109494063838,
-      "start_frame": 454613,
-      "duration_frames": 49169,
-      "overlap": false,
-      "utterance_id": "548-126961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 109461
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.626924251119213,
-      "end_time": 32.0,
-      "duration": 0.37307574888078676,
-      "start_frame": 506030,
-      "duration_frames": 5969,
-      "overlap": false,
-      "utterance_id": "7245-104886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104886.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.5382811745053044,
-      "start_time": 26.249463566103483
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/548/cough/0121.wav",
-      "duration": 0.92,
-      "start_time": 13.594080747975756,
-      "speaker_id": "548"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7245/laugh/0054.wav",
-      "duration": 1.52,
-      "start_time": 12.308946154143339,
-      "speaker_id": "7245"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/44/laugh/0040.wav",
-      "duration": 1.44,
-      "start_time": 21.952236172489243,
-      "speaker_id": "44"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/44/cough/0004.wav",
-      "duration": 0.7877744225166667,
-      "start_time": 17.543510763940763,
-      "speaker_id": "44"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7245/laugh/0051.wav",
-      "duration": 1.3,
-      "start_time": 30.2965890882819,
-      "speaker_id": "7245"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040538.json b/conversations/conv_040538.json
deleted file mode 100644
index b62e9f403b909d004792af15d7cc818d8762a887..0000000000000000000000000000000000000000
--- a/conversations/conv_040538.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "6670-296083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-296083.flac |",
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-      "real_speaker_id": "589",
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-      "utterance_id": "589-146346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 180783
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "duration": 1.52,
-      "start_time": 14.253643602225244,
-      "speaker_id": "2010"
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-      "event_class": "cough",
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-      "duration": 0.8,
-      "start_time": 13.254234381191809,
-      "speaker_id": "2010"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/589/laugh/0079.wav",
-      "duration": 1.4,
-      "start_time": 29.619349117456185,
-      "speaker_id": "589"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040539.json b/conversations/conv_040539.json
deleted file mode 100644
index 89f2bbd416ea7f78b954b4eedc4f1a6514d8cd37..0000000000000000000000000000000000000000
--- a/conversations/conv_040539.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1384-130531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130531.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.482524287898433,
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-      "duration": 6.712458663910976,
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-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.517910848501593,
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-      "overlap": false,
-      "utterance_id": "1384-130462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130462.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 107399
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1384-130459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130459.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 178824
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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\ No newline at end of file
diff --git a/conversations/conv_040543.json b/conversations/conv_040543.json
deleted file mode 100644
index 3f3eb3c53b13121145e2fd94a5356dbb3c7852e2..0000000000000000000000000000000000000000
--- a/conversations/conv_040543.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.18876743712696,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134318.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121074.flac |",
-      "real_speaker_id": "57",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1088",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_040544.json b/conversations/conv_040544.json
deleted file mode 100644
index 0798b80d25117c1e24ca4b4a6090c7bd7ab70a72..0000000000000000000000000000000000000000
--- a/conversations/conv_040544.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.459741986993166,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279849.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121969.flac |",
-      "real_speaker_id": "31",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "4411-14501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14501.flac |",
-      "real_speaker_id": "4411",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.310018921382085,
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-      "utterance_id": "4535-279852",
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-      "real_speaker_id": "4535",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.046773328907936,
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-      "utterance_id": "31-121972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121972.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.185441369868975,
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-      "utterance_id": "4535-279852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279852.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 51359
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4535/laugh/0031.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040552.json b/conversations/conv_040552.json
deleted file mode 100644
index 22ee7e6695d85eed4197f2ffa0688cbb25c2f420..0000000000000000000000000000000000000000
--- a/conversations/conv_040552.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5181-2489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2489.flac |",
-      "real_speaker_id": "5181",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
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-      "utterance_id": "5641-39772",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
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-      "event_class": "Vacuum_cleaner",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5181/laugh/0111.wav",
-      "duration": 0.9,
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-      "speaker_id": "5181"
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-      "event_class": "laugh",
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-      "duration": 0.9,
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-      "speaker_id": "5181"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040555.json b/conversations/conv_040555.json
deleted file mode 100644
index 04ff2a344332ca34f6162d80aa1b318d25d77542..0000000000000000000000000000000000000000
--- a/conversations/conv_040555.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.487872883214127,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3046-137739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-137739.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.581880422516771,
-      "end_time": 11.27257285871423,
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-      "utterance_id": "3046-137739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-137739.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 76588
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.456942061046062,
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-      "start_frame": 183311,
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-      "utterance_id": "3046-137739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-137739.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 167639
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.335908020957397,
-      "end_time": 22.528565032195793,
-      "duration": 5.192657011238397,
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-      "duration_frames": 83082,
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-      "utterance_id": "1754-140639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-140639.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.770698802698394,
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-      "utterance_id": "3046-137739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-137739.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 259894
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1754-137004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-137004.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_040559.json b/conversations/conv_040559.json
deleted file mode 100644
index 7f3ffed52f279b7046770072cd73e3fbbbe632ec..0000000000000000000000000000000000000000
--- a/conversations/conv_040559.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "52-121057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121526.flac |",
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-      "utterance_id": "7285-72200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72200.flac |",
-      "real_speaker_id": "7285",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-123202.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.92013653364582,
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-      "utterance_id": "7285-72207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72207.flac |",
-      "real_speaker_id": "7285",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "77-121518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121518.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040563.json b/conversations/conv_040563.json
deleted file mode 100644
index 758c349961f3648cdb9b25230b357cbfae0f7351..0000000000000000000000000000000000000000
--- a/conversations/conv_040563.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.592305707011846,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4640-19189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19189.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.6766285967500973,
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-      "utterance_id": "464-126794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8430-172388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172388.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 88384
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.89885107477261,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19188.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.491109786581255,
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-      "utterance_id": "464-126794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 156282
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/464/laugh/0038.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040575.json b/conversations/conv_040575.json
deleted file mode 100644
index d9f23a9e3efb5bc4b2b25bf4cddc77b704435b0f..0000000000000000000000000000000000000000
--- a/conversations/conv_040575.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3645-77173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-77173.flac |",
-      "real_speaker_id": "3645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "3656-168618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168618.flac |",
-      "real_speaker_id": "3656",
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-    {
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-      "utterance_id": "3645-39840",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3656-168609.flac |",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.68003122309709,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3645-186230.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-      "speaker_id": "3645"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040579.json b/conversations/conv_040579.json
deleted file mode 100644
index 0326082ab8964aeb69abba0f3289e5fb8c184671..0000000000000000000000000000000000000000
--- a/conversations/conv_040579.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-131218.flac |",
-      "real_speaker_id": "288",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_040580.json b/conversations/conv_040580.json
deleted file mode 100644
index 22d408da83d330f8a1083018bcd534a390582227..0000000000000000000000000000000000000000
--- a/conversations/conv_040580.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.87982901965914,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "real_speaker_id": "6531",
-      "position_frames": 125378
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040581.json b/conversations/conv_040581.json
deleted file mode 100644
index 1b406ea372ec5dad752157a004bbf0e30e09720f..0000000000000000000000000000000000000000
--- a/conversations/conv_040581.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.928600875726676,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 0
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4111/cough/0079.wav",
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-      "start_time": 28.04292922673657,
-      "speaker_id": "4111"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040596.json b/conversations/conv_040596.json
deleted file mode 100644
index 651cb544fd1358ee7509d0274c0634169982c699..0000000000000000000000000000000000000000
--- a/conversations/conv_040596.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.7677034480748,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.622807292112295,
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-      "utterance_id": "1851-151817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.427344678168335,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1851-148312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148312.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.23788817541176,
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-      "overlap": false,
-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.28086644928881,
-      "end_time": 28.823776089833974,
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-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.346190665801466,
-      "end_time": 31.7677034480748,
-      "duration": 2.4215127822733358,
-      "start_frame": 469539,
-      "duration_frames": 38744,
-      "overlap": true,
-      "utterance_id": "2061-147110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 100661
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-      "event_class": "laugh",
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-      "duration": 0.84,
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-      "speaker_id": "2061"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040607.json b/conversations/conv_040607.json
deleted file mode 100644
index a11a8a10d986864139846015509e23abd46f6d47..0000000000000000000000000000000000000000
--- a/conversations/conv_040607.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "6317-54487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6317-54487.flac |",
-      "real_speaker_id": "6317",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.242946828201905,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6317-54487.flac |",
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-      "utterance_id": "7190-90543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90543.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6317-54487.flac |",
-      "real_speaker_id": "6317",
-      "position_frames": 217594
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.117937319598948,
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-      "overlap": false,
-      "utterance_id": "7190-90542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90542.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.27213682061159,
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-      "duration": 4.727863179388411,
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-      "duration_frames": 75645,
-      "overlap": false,
-      "utterance_id": "5622-19214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-19214.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
-      "duration": 0.16310657596371883,
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6317/cough/0008.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6317/laugh/0092.wav",
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-      "speaker_id": "6317"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5622/laugh/0110.wav",
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-      "start_time": 31.327440390435182,
-      "speaker_id": "5622"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040610.json b/conversations/conv_040610.json
deleted file mode 100644
index ffba19182bd5f1136a573f4b832ec459a7ab04d0..0000000000000000000000000000000000000000
--- a/conversations/conv_040610.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.214965861471747,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "3793-10683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-10683.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.9798963898382675,
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-      "utterance_id": "5874-52159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52159.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 15.714019128848987,
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-      "utterance_id": "4111-184447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52160.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 79509
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_14.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5874/laugh/0096.wav",
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-      "event_class": "laugh",
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-      "duration": 1.0,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4111/cough/0093.wav",
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-      "speaker_id": "4111"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040611.json b/conversations/conv_040611.json
deleted file mode 100644
index 5ecc21aef0907a137a9d15c05accbd502a77dc98..0000000000000000000000000000000000000000
--- a/conversations/conv_040611.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "3179-7153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7153.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4595-45218.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
-      "duration": 2.0470748299319728,
-      "start_time": 26.32662207795216
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/277/laugh/0015.wav",
-      "duration": 1.186589999426325,
-      "start_time": 2.5615024268291178,
-      "speaker_id": "277"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4595/cough/0016.wav",
-      "duration": 0.8406402484332254,
-      "start_time": 9.265484378152399,
-      "speaker_id": "4595"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3179/laugh/0095.wav",
-      "duration": 1.16,
-      "start_time": 25.086595521541856,
-      "speaker_id": "3179"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040627.json b/conversations/conv_040627.json
deleted file mode 100644
index eebd7f928e021ae71f5a69ed7ef394f42faff14a..0000000000000000000000000000000000000000
--- a/conversations/conv_040627.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7540086140040883,
-      "duration": 3.7540086140040883,
-      "start_frame": 0,
-      "duration_frames": 60064,
-      "overlap": false,
-      "utterance_id": "5984-56840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56840.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.232184049648879,
-      "end_time": 7.324529061768786,
-      "duration": 3.0923450121199068,
-      "start_frame": 67714,
-      "duration_frames": 49477,
-      "overlap": false,
-      "utterance_id": "2553-163728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163728.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 7.47918027868152,
-      "end_time": 13.152638689555653,
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-      "duration_frames": 90775,
-      "overlap": false,
-      "utterance_id": "5984-56837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56837.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.614968563218227,
-      "end_time": 19.15483208985982,
-      "duration": 5.539863526641593,
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-      "duration_frames": 88637,
-      "overlap": false,
-      "utterance_id": "29-130413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/29-130413.flac |",
-      "real_speaker_id": "29",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.801390240833012,
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-      "utterance_id": "5984-56837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56837.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 90775
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.791168117454674,
-      "end_time": 32.0,
-      "duration": 6.208831882545326,
-      "start_frame": 412658,
-      "duration_frames": 99341,
-      "overlap": false,
-      "utterance_id": "2553-163730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163730.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
-      "duration": 0.6496145124716554,
-      "start_time": 20.725747220581265
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5984/cough/0087.wav",
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-      "start_time": 0.16710542758307947,
-      "speaker_id": "5984"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040631.json b/conversations/conv_040631.json
deleted file mode 100644
index 8521d6519ff399ea52f1506f53f794e5ced4c251..0000000000000000000000000000000000000000
--- a/conversations/conv_040631.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5252-4868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4868.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.939404539650147,
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-      "utterance_id": "112-123215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123215.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.373496951985539,
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-      "overlap": false,
-      "utterance_id": "5252-4876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4876.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.044580767916184,
-      "end_time": 23.090986195821248,
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-      "duration_frames": 80742,
-      "overlap": true,
-      "utterance_id": "112-121671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-121671.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.42678328991127,
-      "end_time": 30.350082458569176,
-      "duration": 5.923299168657904,
-      "start_frame": 390828,
-      "duration_frames": 94772,
-      "overlap": false,
-      "utterance_id": "5463-39174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39174.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.863996293923176,
-      "end_time": 32.0,
-      "duration": 1.1360037060768242,
-      "start_frame": 493823,
-      "duration_frames": 18176,
-      "overlap": false,
-      "utterance_id": "112-123215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123215.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 94798
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/112/laugh/0060.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/112/laugh/0020.wav",
-      "duration": 0.6959452814621507,
-      "start_time": 23.14162247753881,
-      "speaker_id": "112"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040646.json b/conversations/conv_040646.json
deleted file mode 100644
index 056c367add52b86c525d889d7e4740829994affc..0000000000000000000000000000000000000000
--- a/conversations/conv_040646.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3876-174953",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.702292058786922,
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-      "duration_frames": 66154,
-      "overlap": false,
-      "utterance_id": "4734-220951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220951.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.40208268909761,
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-      "overlap": true,
-      "utterance_id": "684-131458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-131458.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.664708119179007,
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-      "duration": 5.161157209422667,
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-      "duration_frames": 82578,
-      "overlap": false,
-      "utterance_id": "3876-174953",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 84756
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.917872906719165,
-      "end_time": 30.607537228787834,
-      "duration": 6.689664322068668,
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-      "utterance_id": "4734-220951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220951.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 66154
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.673863053036133,
-      "end_time": 32.0,
-      "duration": 0.3261369469638673,
-      "start_frame": 506781,
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-      "utterance_id": "3876-174953",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 167334
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3876/cough/0013.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040647.json b/conversations/conv_040647.json
deleted file mode 100644
index ee9d736dbf1694ac4e21d0df3fba163553c03ebe..0000000000000000000000000000000000000000
--- a/conversations/conv_040647.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.66532478808261,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.172972486791126,
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-      "duration": 3.9067267942117194,
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-      "utterance_id": "6138-93186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.465245928984796,
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-      "duration": 4.172126818808492,
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-      "duration_frames": 66754,
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-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 76526
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6138-93182",
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-      "real_speaker_id": "6138",
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "utterance_id": "6138-93188",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040650.json b/conversations/conv_040650.json
deleted file mode 100644
index 11a49bda6e872e65c917014527eb300b0d0e83e4..0000000000000000000000000000000000000000
--- a/conversations/conv_040650.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.576979084720914,
-      "duration": 5.576979084720914,
-      "start_frame": 0,
-      "duration_frames": 89231,
-      "overlap": false,
-      "utterance_id": "7932-278228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7932-278228.flac |",
-      "real_speaker_id": "7932",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.062825769256023,
-      "end_time": 9.85296583320596,
-      "duration": 3.790140063949938,
-      "start_frame": 97005,
-      "duration_frames": 60642,
-      "overlap": true,
-      "utterance_id": "78-369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/78-369.flac |",
-      "real_speaker_id": "78",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.939820241682462,
-      "end_time": 17.38639245219472,
-      "duration": 6.446572210512257,
-      "start_frame": 175037,
-      "duration_frames": 103145,
-      "overlap": false,
-      "utterance_id": "307-127540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127540.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.477211078688004,
-      "end_time": 23.374720519475936,
-      "duration": 4.89750944078793,
-      "start_frame": 295635,
-      "duration_frames": 78360,
-      "overlap": false,
-      "utterance_id": "7932-278228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7932-278228.flac |",
-      "real_speaker_id": "7932",
-      "position_frames": 89231
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.584419941729397,
-      "end_time": 28.542184589301353,
-      "duration": 4.957764647571957,
-      "start_frame": 377350,
-      "duration_frames": 79324,
-      "overlap": false,
-      "utterance_id": "307-127535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127535.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.912769914692007,
-      "end_time": 32.0,
-      "duration": 3.0872300853079935,
-      "start_frame": 462604,
-      "duration_frames": 49395,
-      "overlap": false,
-      "utterance_id": "7932-93470",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7932-93470.flac |",
-      "real_speaker_id": "7932",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
-      "start_time": 14.626812135413823
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
-      "duration": 1.1948403227793953,
-      "start_time": 4.336765834020209
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
-      "duration": 0.09736961451247166,
-      "start_time": 21.602449567115872
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/78/laugh/0002.wav",
-      "duration": 0.5019166837368781,
-      "start_time": 8.361916345065469,
-      "speaker_id": "78"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/307/laugh/0049.wav",
-      "duration": 0.6185104268652057,
-      "start_time": 17.488671400602115,
-      "speaker_id": "307"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7932/laugh/0101.wav",
-      "duration": 1.2264935525415444,
-      "start_time": 20.03813165331908,
-      "speaker_id": "7932"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7932/laugh/0072.wav",
-      "duration": 0.7046519509230218,
-      "start_time": 28.132660976837254,
-      "speaker_id": "7932"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040666.json b/conversations/conv_040666.json
deleted file mode 100644
index c32f56ae57bcbd6a4c3edbc746be0a0822ad3659..0000000000000000000000000000000000000000
--- a/conversations/conv_040666.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.9185055621382685,
-      "duration": 3.9185055621382685,
-      "start_frame": 0,
-      "duration_frames": 62696,
-      "overlap": false,
-      "utterance_id": "6550-65820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.532483331111564,
-      "end_time": 9.842449463767398,
-      "duration": 6.309966132655835,
-      "start_frame": 56519,
-      "duration_frames": 100959,
-      "overlap": true,
-      "utterance_id": "8758-296465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-296465.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.734045994977249,
-      "end_time": 16.13178393793553,
-      "duration": 5.397737942958281,
-      "start_frame": 171744,
-      "duration_frames": 86363,
-      "overlap": false,
-      "utterance_id": "8758-291170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-291170.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.38020808672215,
-      "end_time": 22.29832219840273,
-      "duration": 4.91811411168058,
-      "start_frame": 278083,
-      "duration_frames": 78689,
-      "overlap": false,
-      "utterance_id": "6550-53343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53343.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.362765690819437,
-      "end_time": 27.985419677473054,
-      "duration": 5.622653986653615,
-      "start_frame": 357804,
-      "duration_frames": 89962,
-      "overlap": true,
-      "utterance_id": "8758-296465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8758-296465.flac |",
-      "real_speaker_id": "8758",
-      "position_frames": 100959
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.345816976485633,
-      "end_time": 32.0,
-      "duration": 2.654183023514367,
-      "start_frame": 469533,
-      "duration_frames": 42466,
-      "overlap": false,
-      "utterance_id": "543-137106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-137106.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
-      "duration": 2.411609977324263,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8758/laugh/0092.wav",
-      "duration": 1.4,
-      "start_time": 6.785311732971744,
-      "speaker_id": "8758"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8758/cough/0066.wav",
-      "duration": 0.6526065365777549,
-      "start_time": 9.895826348535621,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8758/laugh/0060.wav",
-      "duration": 1.089374497716189,
-      "start_time": 9.39007300556192,
-      "speaker_id": "8758"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6550/laugh/0034.wav",
-      "duration": 1.3350179490671605,
-      "start_time": 15.815599964928076,
-      "speaker_id": "6550"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/543/laugh/0102.wav",
-      "duration": 1.2,
-      "start_time": 30.759760810077246,
-      "speaker_id": "543"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/543/cough/0104.wav",
-      "duration": 1.4345986114385234,
-      "start_time": 30.565401388561476,
-      "speaker_id": "543"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040670.json b/conversations/conv_040670.json
deleted file mode 100644
index da467196a203be20216e447b7b1b12dac4e55911..0000000000000000000000000000000000000000
--- a/conversations/conv_040670.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.77262626521668,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.053774069655199,
-      "duration": 6.053774069655199,
-      "start_frame": 0,
-      "duration_frames": 96860,
-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.397062204025835,
-      "end_time": 11.887848437464722,
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-      "start_frame": 102352,
-      "duration_frames": 87852,
-      "overlap": false,
-      "utterance_id": "5266-34501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-34501.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.64851344131708,
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-      "duration_frames": 83087,
-      "overlap": true,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 96860
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.92503818072238,
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-      "duration": 5.260941840429118,
-      "start_frame": 286800,
-      "duration_frames": 84175,
-      "overlap": false,
-      "utterance_id": "5266-41151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.6604544379826,
-      "end_time": 29.959699246220367,
-      "duration": 6.299244808237768,
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-      "duration_frames": 100787,
-      "overlap": false,
-      "utterance_id": "5266-34501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-34501.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 87852
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.790035658638278,
-      "end_time": 31.77262626521668,
-      "duration": 0.9825906065784018,
-      "start_frame": 492640,
-      "duration_frames": 15721,
-      "overlap": true,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 179947
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_17.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5266/laugh/0070.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1678/laugh/0041.wav",
-      "duration": 1.24,
-      "start_time": 29.257940391147546,
-      "speaker_id": "1678"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040682.json b/conversations/conv_040682.json
deleted file mode 100644
index 4dbaa1783e31a697d0ac0f11017710f9875a88ea..0000000000000000000000000000000000000000
--- a/conversations/conv_040682.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.356783657363856,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.513248470183385,
-      "duration": 5.513248470183385,
-      "start_frame": 0,
-      "duration_frames": 88211,
-      "overlap": false,
-      "utterance_id": "4021-130137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-130137.flac |",
-      "real_speaker_id": "4021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.157985715201063,
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-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4021-180238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-180238.flac |",
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-      "position_frames": 0
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-    {
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "5186",
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-  "background_events": [
-    {
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-      "duration": 3.837875574484531,
-      "start_time": 14.177927132015462
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.605667306539127,
-      "start_time": 18.018929421347988
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4021/laugh/0125.wav",
-      "duration": 1.12,
-      "start_time": 5.717044476029613,
-      "speaker_id": "4021"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4021/cough/0009.wav",
-      "duration": 0.5553492161936249,
-      "start_time": 0,
-      "speaker_id": "4021"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5186/laugh/0076.wav",
-      "duration": 1.08,
-      "start_time": 4.879773823800578,
-      "speaker_id": "5186"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040685.json b/conversations/conv_040685.json
deleted file mode 100644
index 04f3094909ce55051e938420ab82bfc379ccbe0c..0000000000000000000000000000000000000000
--- a/conversations/conv_040685.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.35364130717685,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.4135467989158155,
-      "duration": 4.4135467989158155,
-      "start_frame": 0,
-      "duration_frames": 70616,
-      "overlap": false,
-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.848426671690419,
-      "end_time": 8.950672264510736,
-      "duration": 4.102245592820317,
-      "start_frame": 77574,
-      "duration_frames": 65635,
-      "overlap": false,
-      "utterance_id": "949-162667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-162667.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.910092066132092,
-      "end_time": 16.905156932714156,
-      "duration": 6.995064866582066,
-      "start_frame": 158561,
-      "duration_frames": 111921,
-      "overlap": false,
-      "utterance_id": "8424-281334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8424-281334.flac |",
-      "real_speaker_id": "8424",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.436985661352747,
-      "end_time": 23.350340381365058,
-      "duration": 6.913354720012311,
-      "start_frame": 262991,
-      "duration_frames": 110613,
-      "overlap": true,
-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 70616
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.605281756002213,
-      "end_time": 28.930704053855287,
-      "duration": 4.325422297853072,
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-      "duration_frames": 69206,
-      "overlap": false,
-      "utterance_id": "949-138545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-138545.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.20058149464295,
-      "end_time": 31.35364130717685,
-      "duration": 2.1530598125339004,
-      "start_frame": 467209,
-      "duration_frames": 34448,
-      "overlap": true,
-      "utterance_id": "949-134660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/949-134660.flac |",
-      "real_speaker_id": "949",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 16.561632653061224,
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-  ],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 2.3744773722059813,
-      "start_time": 11.79162048592188
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8687/cough/0082.wav",
-      "duration": 0.9211243137434868,
-      "start_time": 0.4434768798032481,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8424/laugh/0012.wav",
-      "duration": 0.96,
-      "start_time": 17.022312414656756,
-      "speaker_id": "8424"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/949/laugh/0085.wav",
-      "duration": 0.7366125576003593,
-      "start_time": 26.220044086508075,
-      "speaker_id": "949"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040689.json b/conversations/conv_040689.json
deleted file mode 100644
index e6d65b0c48c514bcf0b998a27752ed35385675a1..0000000000000000000000000000000000000000
--- a/conversations/conv_040689.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5287-39165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5287-39165.flac |",
-      "real_speaker_id": "5287",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.421405502462878,
-      "end_time": 9.391082934776488,
-      "duration": 3.9696774323136115,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
-      "real_speaker_id": "6391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.923181927904453,
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-      "duration": 5.176587335399801,
-      "start_frame": 158770,
-      "duration_frames": 82825,
-      "overlap": false,
-      "utterance_id": "6010-56787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56787.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.600707168162849,
-      "end_time": 20.50314674871627,
-      "duration": 4.9024395805534215,
-      "start_frame": 249611,
-      "duration_frames": 78439,
-      "overlap": false,
-      "utterance_id": "6391-65553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6391-65553.flac |",
-      "real_speaker_id": "6391",
-      "position_frames": 63514
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.640283295418023,
-      "end_time": 27.997643660707396,
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-      "duration_frames": 101717,
-      "overlap": false,
-      "utterance_id": "5287-39165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5287-39165.flac |",
-      "real_speaker_id": "5287",
-      "position_frames": 78411
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.031455305115735,
-      "end_time": 32.0,
-      "duration": 2.9685446948842653,
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-      "overlap": false,
-      "utterance_id": "6010-56787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56787.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 82825
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5287/cough/0074.wav",
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-      "start_time": 5.049366880491419,
-      "speaker_id": "5287"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040693.json b/conversations/conv_040693.json
deleted file mode 100644
index 8525335f575ac7bee28af002f8fd623b6935275b..0000000000000000000000000000000000000000
--- a/conversations/conv_040693.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.377017442347581,
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-      "overlap": false,
-      "utterance_id": "5463-39173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.468463622768976,
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-      "duration": 3.053501770353938,
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-      "utterance_id": "2919-7269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7269.flac |",
-      "real_speaker_id": "2919",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 95281,
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-      "utterance_id": "5463-39173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 102032
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.330620774390034,
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-      "duration_frames": 62929,
-      "overlap": false,
-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.702735342369532,
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-      "overlap": true,
-      "utterance_id": "2919-7269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2919-7269.flac |",
-      "real_speaker_id": "2919",
-      "position_frames": 48856
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.265405929351882,
-      "end_time": 32.0,
-      "duration": 2.734594070648118,
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-      "utterance_id": "5463-39174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39174.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_040694.json b/conversations/conv_040694.json
deleted file mode 100644
index 7b9057dd23bfb83c1fe1deb469427f460dccb6e9..0000000000000000000000000000000000000000
--- a/conversations/conv_040694.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.207002784613135,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.0872326382407715,
-      "duration": 3.0872326382407715,
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-      "duration_frames": 49395,
-      "overlap": false,
-      "utterance_id": "2007-132570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-132570.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.6824743324569553,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32875.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_frame": 171287,
-      "duration_frames": 66378,
-      "overlap": true,
-      "utterance_id": "2007-149877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-149877.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
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-  "background_events": [
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-      "event_class": "Dog",
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-      "duration": 0.35356009070294786,
-      "start_time": 26.01462524943486
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5682/laugh/0044.wav",
-      "duration": 1.36,
-      "start_time": 17.056201746189544,
-      "speaker_id": "5682"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5682/laugh/0033.wav",
-      "duration": 1.4,
-      "start_time": 27.982025290209112,
-      "speaker_id": "5682"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040703.json b/conversations/conv_040703.json
deleted file mode 100644
index 799be93823df2feb6b1ddbeb11789ba06b5e8b0f..0000000000000000000000000000000000000000
--- a/conversations/conv_040703.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.8699536579641105,
-      "duration": 4.8699536579641105,
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-      "overlap": false,
-      "utterance_id": "7226-86965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.498806226895441,
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-      "duration": 6.062670857469089,
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-      "overlap": false,
-      "utterance_id": "5456-24741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5456-24741.flac |",
-      "real_speaker_id": "5456",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.85761461367721,
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-      "start_frame": 189721,
-      "duration_frames": 66259,
-      "overlap": false,
-      "utterance_id": "7226-86965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 77919
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.44756950112206,
-      "end_time": 22.507977370018274,
-      "duration": 6.0604078688962115,
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-      "overlap": false,
-      "utterance_id": "2544-3070",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-3070.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.570495578075967,
-      "end_time": 28.421702024060377,
-      "duration": 4.85120644598441,
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-      "overlap": false,
-      "utterance_id": "7226-86965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 144178
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.961009429179338,
-      "end_time": 32.0,
-      "duration": 3.038990570820662,
-      "start_frame": 463376,
-      "duration_frames": 48623,
-      "overlap": false,
-      "utterance_id": "2544-10944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-10944.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7226/cough/0036.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5456/laugh/0043.wav",
-      "duration": 0.8450994739122226,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2544/cough/0066.wav",
-      "duration": 1.1871065305352344,
-      "start_time": 30.812893469464765,
-      "speaker_id": "2544"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040715.json b/conversations/conv_040715.json
deleted file mode 100644
index 7e589eca3d5ae0765beed9d24f9713451b02dc11..0000000000000000000000000000000000000000
--- a/conversations/conv_040715.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3045-155991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-155991.flac |",
-      "real_speaker_id": "3045",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-155991.flac |",
-      "real_speaker_id": "3045",
-      "position_frames": 96914
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.35616886795308,
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-      "overlap": false,
-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.946033945694676,
-      "end_time": 27.944344331240675,
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-      "overlap": false,
-      "utterance_id": "3045-163406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-163406.flac |",
-      "real_speaker_id": "3045",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.966646381118878,
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-      "utterance_id": "5719-233352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233352.flac |",
-      "real_speaker_id": "5719",
-      "position_frames": 88440
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040719.json b/conversations/conv_040719.json
deleted file mode 100644
index d3d8d770f2b707583df3db1e59657ea421529731..0000000000000000000000000000000000000000
--- a/conversations/conv_040719.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6173-76445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6173-76445.flac |",
-      "real_speaker_id": "6173",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6173-94652.flac |",
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-      "utterance_id": "982-133222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/982-133222.flac |",
-      "real_speaker_id": "982",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2196-170379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-170379.flac |",
-      "real_speaker_id": "2196",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2196-174172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-174172.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_3.wav",
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\ No newline at end of file
diff --git a/conversations/conv_040723.json b/conversations/conv_040723.json
deleted file mode 100644
index e6b38b68f282b573f96e13a008147b9698347feb..0000000000000000000000000000000000000000
--- a/conversations/conv_040723.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7507047518887306,
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-      "duration_frames": 60011,
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-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2341-163407.flac |",
-      "real_speaker_id": "2341",
-      "position_frames": 49527
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1943/laugh/0010.wav",
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-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 12.02491709812836,
-      "speaker_id": "6849"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6849/laugh/0014.wav",
-      "duration": 0.6895561337917809,
-      "start_time": 29.14371955105755,
-      "speaker_id": "6849"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2341/laugh/0021.wav",
-      "duration": 0.7004426042101206,
-      "start_time": 29.886847184079407,
-      "speaker_id": "2341"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2341/cough/0030.wav",
-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "2341"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040728.json b/conversations/conv_040728.json
deleted file mode 100644
index 19ba251ebf0358100c4bbd06707b2b4d30704e6e..0000000000000000000000000000000000000000
--- a/conversations/conv_040728.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.086445357830563,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.4130167773171958,
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-      "overlap": false,
-      "utterance_id": "7061-88086",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-88086.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.829765094006187,
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-      "utterance_id": "1618-32403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-32403.flac |",
-      "real_speaker_id": "1618",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.106468813184755,
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-      "duration": 4.915301666725108,
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-      "overlap": false,
-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.348124729440666,
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-      "utterance_id": "7061-85635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-85635.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.043742939825137,
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-      "duration_frames": 66935,
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-      "utterance_id": "5445-21282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21282.flac |",
-      "real_speaker_id": "5445",
-      "position_frames": 78644
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.33045873721603,
-      "end_time": 27.537571530069187,
-      "duration": 5.207112792853157,
-      "start_frame": 357287,
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-      "utterance_id": "1618-32402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-32402.flac |",
-      "real_speaker_id": "1618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.24666218413852,
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-      "utterance_id": "7061-85635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-85635.flac |",
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7061/laugh/0022.wav",
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-      "start_time": 26.48257627420178,
-      "speaker_id": "7061"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040735.json b/conversations/conv_040735.json
deleted file mode 100644
index 497f19e33ae9e52e5421cd78e91246e9395ae1ed..0000000000000000000000000000000000000000
--- a/conversations/conv_040735.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1679-142287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1679-142287.flac |",
-      "real_speaker_id": "1679",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.01479354025522,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-41911.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1679-142280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1679-142280.flac |",
-      "real_speaker_id": "1679",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.97294672402649,
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-      "duration_frames": 71988,
-      "overlap": false,
-      "utterance_id": "5725-50452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-50452.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.11049696621675,
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-      "duration_frames": 73452,
-      "overlap": false,
-      "utterance_id": "1679-142280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1679-142280.flac |",
-      "real_speaker_id": "1679",
-      "position_frames": 70616
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.175374160225036,
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-      "duration": 4.8246258397749635,
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-      "utterance_id": "5725-48803",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-48803.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5725/laugh/0048.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "5725"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040739.json b/conversations/conv_040739.json
deleted file mode 100644
index 2e5f3e77cdc645cf0a88903d58fdc0ea23a2ab9a..0000000000000000000000000000000000000000
--- a/conversations/conv_040739.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2309-152160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152160.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.062905641978135,
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-      "duration_frames": 97487,
-      "overlap": false,
-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 48418,
-      "overlap": true,
-      "utterance_id": "5328-204986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 97487
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.415947709172492,
-      "end_time": 28.94379268768745,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5328-204986.flac |",
-      "real_speaker_id": "5328",
-      "position_frames": 145905
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 106840
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7835/laugh/0012.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "7835"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040742.json b/conversations/conv_040742.json
deleted file mode 100644
index e7e3722fb920eaf1a8359e4edf83fd099b9572d3..0000000000000000000000000000000000000000
--- a/conversations/conv_040742.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.413630092354862,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.898315556822059,
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-      "duration": 5.4642241598703984,
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-      "utterance_id": "584-124227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124227.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "584-132032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-132032.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "584-132032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-132032.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 77654
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.782078873466197,
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-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 175003
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-      "event_class": "Dishes",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/584/cough/0037.wav",
-      "duration": 0.4120412514568555,
-      "start_time": 14.61954297538678,
-      "speaker_id": "584"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/584/laugh/0134.wav",
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-      "start_time": 26.282462104504518,
-      "speaker_id": "584"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040745.json b/conversations/conv_040745.json
deleted file mode 100644
index 57b62a0066a63199ba444b0f252cc7c73973c9b4..0000000000000000000000000000000000000000
--- a/conversations/conv_040745.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "307-127540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127540.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.49902591657217,
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-      "utterance_id": "6188-73024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-73024.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.950317497669499,
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-      "overlap": false,
-      "utterance_id": "307-127540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127540.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 62471
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.65721475404744,
-      "end_time": 21.207372988498342,
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-      "start_frame": 266515,
-      "duration_frames": 72802,
-      "overlap": false,
-      "utterance_id": "5468-112587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5468-112587.flac |",
-      "real_speaker_id": "5468",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.70684067850012,
-      "end_time": 27.20263709340943,
-      "duration": 5.495796414909309,
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-      "duration_frames": 87932,
-      "overlap": false,
-      "utterance_id": "307-127535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127535.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.130001944776946,
-      "end_time": 32.0,
-      "duration": 3.8699980552230535,
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-      "overlap": false,
-      "utterance_id": "6188-78885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-78885.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 26.702741708604137,
-      "speaker_id": "6188"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040754.json b/conversations/conv_040754.json
deleted file mode 100644
index e3add1d57d845c5346b7642e77cb23441cb4d95a..0000000000000000000000000000000000000000
--- a/conversations/conv_040754.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.551577135502136,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 6.037214009418956,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.47654887177261,
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-      "duration_frames": 67480,
-      "overlap": false,
-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.601288228284197,
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-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 79978
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.84309866184328,
-      "end_time": 28.71753505932196,
-      "duration": 5.874436397478684,
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-      "duration_frames": 93990,
-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 82118
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.026841008879515,
-      "end_time": 31.551577135502136,
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-      "start_frame": 464429,
-      "duration_frames": 40395,
-      "overlap": true,
-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 164821
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2882/laugh/0040.wav",
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-    {
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-    {
-      "event_class": "cough",
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-      "duration": 1.0,
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-      "speaker_id": "1733"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040755.json b/conversations/conv_040755.json
deleted file mode 100644
index 91b59968605ab45793c0e3e1d75a7cda70bd59ff..0000000000000000000000000000000000000000
--- a/conversations/conv_040755.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "end_time": 6.068864691868374,
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-      "overlap": false,
-      "utterance_id": "2816-4136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-4136.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.1761538809453596,
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-      "duration_frames": 90030,
-      "overlap": true,
-      "utterance_id": "1777-142750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142750.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.701790138019808,
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-      "overlap": true,
-      "utterance_id": "1819-144398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144398.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.384756006708223,
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-      "utterance_id": "1777-142750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142750.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 90030
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2816-4136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-4136.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 97101
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.39714898126118,
-      "end_time": 32.0,
-      "duration": 1.6028510187388214,
-      "start_frame": 486354,
-      "duration_frames": 25645,
-      "overlap": false,
-      "utterance_id": "1777-142750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142750.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 151129
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2816/cough/0035.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1777/laugh/0079.wav",
-      "duration": 1.08,
-      "start_time": 30.719315891147218,
-      "speaker_id": "1777"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040758.json b/conversations/conv_040758.json
deleted file mode 100644
index 97b9771d0bd217fac5214341945afc457697c793..0000000000000000000000000000000000000000
--- a/conversations/conv_040758.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.046347276496327,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.204677523812621,
-      "duration": 5.204677523812621,
-      "start_frame": 0,
-      "duration_frames": 83274,
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-      "utterance_id": "345-1119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1119.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.271497478939715,
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-      "utterance_id": "8465-246942",
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-      "real_speaker_id": "8465",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "345-1120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
-      "real_speaker_id": "345",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8500",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 85377
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_040762.json b/conversations/conv_040762.json
deleted file mode 100644
index 5112a599fba3dc1b79821a15e489fc1b3a9b3628..0000000000000000000000000000000000000000
--- a/conversations/conv_040762.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "2494-156019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156019.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.2660207886917485,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156014.flac |",
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-      "speaker_id": 0,
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-      "utterance_id": "7520-258954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.04170727352613,
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-      "utterance_id": "2494-156015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156015.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.791221824167717,
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-      "duration": 3.2087781758322826,
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-      "utterance_id": "669-129074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129074.flac |",
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-      "position_frames": 81042
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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\ No newline at end of file
diff --git a/conversations/conv_040769.json b/conversations/conv_040769.json
deleted file mode 100644
index a73b6c808fce3fd949c11a7854423b2da21b4ff0..0000000000000000000000000000000000000000
--- a/conversations/conv_040769.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.76602716746867,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-66371.flac |",
-      "real_speaker_id": "6535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.259661873934895,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 257768
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3537/laugh/0031.wav",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040774.json b/conversations/conv_040774.json
deleted file mode 100644
index 8e1c37634eb5060948de57aea065e8b06dbdb48d..0000000000000000000000000000000000000000
--- a/conversations/conv_040774.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8401-280380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8401-280380.flac |",
-      "real_speaker_id": "8401",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 101205
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1392",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1392-128226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-128226.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "8401",
-      "position_frames": 175005
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_040778.json b/conversations/conv_040778.json
deleted file mode 100644
index 27f732704e7f5d649cd211b44d7135bb0590b2b7..0000000000000000000000000000000000000000
--- a/conversations/conv_040778.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_040781.json b/conversations/conv_040781.json
deleted file mode 100644
index b3e01cb68e47b021114ee855e878dcc9dc15c1f1..0000000000000000000000000000000000000000
--- a/conversations/conv_040781.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1175-126220.flac |",
-      "real_speaker_id": "1175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-133256.flac |",
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-      "utterance_id": "1246-124550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-124550.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.024073390340945,
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-      "utterance_id": "1183-133255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-133255.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.786782919158693,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-133256.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 75112
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-      "real_speaker_id": "1183",
-      "position_frames": 158976
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-  "background_events": [
-    {
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-      "speaker_id": "1175"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040786.json b/conversations/conv_040786.json
deleted file mode 100644
index d07bc7d18fd5f155b5616abfdaf13eea30dfd22a..0000000000000000000000000000000000000000
--- a/conversations/conv_040786.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.086421266256572,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-141272.flac |",
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-      "utterance_id": "1653-142374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142374.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1653-142352",
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-      "real_speaker_id": "1653",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_040790.json b/conversations/conv_040790.json
deleted file mode 100644
index 4837f01e4b55265cbfe9c281fa6bc73225ba3062..0000000000000000000000000000000000000000
--- a/conversations/conv_040790.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.232932507700983,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "9000-282381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282381.flac |",
-      "real_speaker_id": "9000",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.607993874087195,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-12723.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282381.flac |",
-      "real_speaker_id": "9000",
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-    {
-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "9000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_040797.json b/conversations/conv_040797.json
deleted file mode 100644
index c72334b2a9bceec364ad7fd997ffd9b4936a01d3..0000000000000000000000000000000000000000
--- a/conversations/conv_040797.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-58090.flac |",
-      "real_speaker_id": "6060",
-      "position_frames": 66041
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.90297004802818,
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-      "duration": 2.0970299519718196,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-8592.flac |",
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-      "position_frames": 62228
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-      "event_class": "Blender",
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-      "speaker_id": "7739"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040801.json b/conversations/conv_040801.json
deleted file mode 100644
index 8e6a9023f3683c9bea44d444dfc44721d00dd8fc..0000000000000000000000000000000000000000
--- a/conversations/conv_040801.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.622650685002825,
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-      "utterance_id": "6670-296083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-296083.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2061-147110.flac |",
-      "real_speaker_id": "2061",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.76857331483416,
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-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 162773
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_040806.json b/conversations/conv_040806.json
deleted file mode 100644
index 9169f9ccff252637611f6db0cd3c1b0aea0c4fb8..0000000000000000000000000000000000000000
--- a/conversations/conv_040806.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_040810.json b/conversations/conv_040810.json
deleted file mode 100644
index 060b7f56fd75ec3d83e4868190a3e5cdf62fc734..0000000000000000000000000000000000000000
--- a/conversations/conv_040810.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1373-132103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
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-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-  "foreground_events": [
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-      "speaker_id": "7326"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1373/laugh/0004.wav",
-      "duration": 1.08,
-      "start_time": 22.662661396119734,
-      "speaker_id": "1373"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040811.json b/conversations/conv_040811.json
deleted file mode 100644
index f60017689a7ca7e79d78be6e5da402e49af96064..0000000000000000000000000000000000000000
--- a/conversations/conv_040811.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.214855931212627,
-      "duration": 5.214855931212627,
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-      "overlap": false,
-      "utterance_id": "8226-274371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274371.flac |",
-      "real_speaker_id": "8226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.547973474358786,
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-      "duration": 6.5996040529430084,
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-      "utterance_id": "4406-16883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16883.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.363266940464161,
-      "end_time": 18.84633104451949,
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-      "duration_frames": 103729,
-      "overlap": true,
-      "utterance_id": "3657-19115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3657-19115.flac |",
-      "real_speaker_id": "3657",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.934120302364782,
-      "end_time": 23.741557032408984,
-      "duration": 3.807436730044202,
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-      "overlap": false,
-      "utterance_id": "4406-16882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16882.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.574716425042258,
-      "end_time": 30.149766098257324,
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-      "utterance_id": "8226-274369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274369.flac |",
-      "real_speaker_id": "8226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.895153695845156,
-      "end_time": 32.0,
-      "duration": 1.1048463041548438,
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-      "duration_frames": 17677,
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-      "utterance_id": "4406-16883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16883.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 105593
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_5.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.8578998968272795,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4406/laugh/0082.wav",
-      "duration": 1.1029559577051575,
-      "start_time": 20.22600831595657,
-      "speaker_id": "4406"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4406/laugh/0039.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "4406"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040817.json b/conversations/conv_040817.json
deleted file mode 100644
index 5296b842f49cb103319200410be83dd8bbef8448..0000000000000000000000000000000000000000
--- a/conversations/conv_040817.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.322013437953448,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.070751712668357,
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-      "overlap": false,
-      "utterance_id": "8498-287357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287357.flac |",
-      "real_speaker_id": "8498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.6622128532488567,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-94904.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.307512910257339,
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-      "overlap": true,
-      "utterance_id": "1665-136991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "1665-141758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-141758.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.56909564463384,
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-      "utterance_id": "4788-94904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-94904.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 109876
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 67930,
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-      "utterance_id": "8498-287359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287359.flac |",
-      "real_speaker_id": "8498",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1665/laugh/0043.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "8498"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040826.json b/conversations/conv_040826.json
deleted file mode 100644
index db867ef9864ff967433a7cdfa1379215d5a0f880..0000000000000000000000000000000000000000
--- a/conversations/conv_040826.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6792",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/30-4447.flac |",
-      "real_speaker_id": "30",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.33863359955829,
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-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
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-      "position_frames": 93451
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1849-144965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-144965.flac |",
-      "real_speaker_id": "1849",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 28.07705154205795
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_040830.json b/conversations/conv_040830.json
deleted file mode 100644
index fab51749c8311eb62ea65a4475c9addd0b7b273b..0000000000000000000000000000000000000000
--- a/conversations/conv_040830.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "8119-115686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115686.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7285-72200",
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-    {
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-    {
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-      "start_time": 22.4788670422908,
-      "speaker_id": "5767"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_040840.json b/conversations/conv_040840.json
deleted file mode 100644
index 4c950a0cae06a93fbd2ee0dc7cc542002853ac93..0000000000000000000000000000000000000000
--- a/conversations/conv_040840.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5513-39477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39477.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.301698105944593,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7780-274562.flac |",
-      "real_speaker_id": "7780",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.722603929804496,
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-      "start_frame": 235561,
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-      "utterance_id": "5513-39476",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39476.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.50195624543062,
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-      "duration_frames": 62433,
-      "overlap": false,
-      "utterance_id": "7780-274562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7780-274562.flac |",
-      "real_speaker_id": "7780",
-      "position_frames": 68870
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.898210530244388,
-      "end_time": 32.0,
-      "duration": 5.101789469755612,
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-      "overlap": false,
-      "utterance_id": "5513-39477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39477.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 59951
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
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-      "event_class": "cough",
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-      "speaker_id": "5513"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040847.json b/conversations/conv_040847.json
deleted file mode 100644
index 5f665ab74f2538cf105ebdc9a53d7cdbb50db858..0000000000000000000000000000000000000000
--- a/conversations/conv_040847.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.0483637102721035,
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-      "utterance_id": "3109-165420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
-      "real_speaker_id": "3109",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.547294221671019,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
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-    },
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 84284
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.80131255996679,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 99143
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.883979282129225,
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-      "duration": 1.116020717870775,
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-      "overlap": false,
-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 165105
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "start_time": 29.175502008361683,
-      "speaker_id": "328"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040851.json b/conversations/conv_040851.json
deleted file mode 100644
index 9480172355ca4cf5804c85b2bd3827415763370d..0000000000000000000000000000000000000000
--- a/conversations/conv_040851.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
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-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 80125
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5152-81827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5152-81827.flac |",
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-      "position_frames": 65548
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_040856.json b/conversations/conv_040856.json
deleted file mode 100644
index 0edca1adea682fe07ef2cc3b3e7bcdc8bf2409d2..0000000000000000000000000000000000000000
--- a/conversations/conv_040856.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/227/laugh/0015.wav",
-      "duration": 1.32,
-      "start_time": 14.285727563292314,
-      "speaker_id": "227"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/227/cough/0100.wav",
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-      "speaker_id": "227"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040867.json b/conversations/conv_040867.json
deleted file mode 100644
index 3c6b9c98bdde9d3cc9dbc4e06c3baf9b318479c1..0000000000000000000000000000000000000000
--- a/conversations/conv_040867.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.605621886221989,
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-      "start_frame": 0,
-      "duration_frames": 73689,
-      "overlap": false,
-      "utterance_id": "572-96582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-96582.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.775944854011429,
-      "end_time": 11.305818257603526,
-      "duration": 6.529873403592098,
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-      "utterance_id": "584-124229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124229.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.856367731258047,
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-      "duration_frames": 90627,
-      "overlap": true,
-      "utterance_id": "277-127368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/277-127368.flac |",
-      "real_speaker_id": "277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.525814291464354,
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-      "overlap": false,
-      "utterance_id": "572-126495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-126495.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.724456496226587,
-      "end_time": 30.197451364705802,
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-      "overlap": false,
-      "utterance_id": "572-128861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-128861.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.046561851552916,
-      "end_time": 32.0,
-      "duration": 0.9534381484470842,
-      "start_frame": 496744,
-      "duration_frames": 15255,
-      "overlap": false,
-      "utterance_id": "584-124229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124229.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 104477
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
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-      "start_time": 8.673532182344243
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
-      "duration": 1.0774603174603175,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/584/laugh/0098.wav",
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-      "speaker_id": "584"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/277/laugh/0130.wav",
-      "duration": 0.8038637777132296,
-      "start_time": 9.756003448100516,
-      "speaker_id": "277"
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-    {
-      "event_class": "cough",
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-      "start_time": 16.62874248823228,
-      "speaker_id": "572"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/572/laugh/0096.wav",
-      "duration": 0.6752811112067616,
-      "start_time": 24.978117443997657,
-      "speaker_id": "572"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040871.json b/conversations/conv_040871.json
deleted file mode 100644
index 64ebcffb907e28efb93152daa160bfd669bed8b2..0000000000000000000000000000000000000000
--- a/conversations/conv_040871.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5139-30106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30106.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.940790121635557,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34645.flac |",
-      "real_speaker_id": "7178",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5139-30106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30106.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 94805
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.492317792251516,
-      "end_time": 27.157803281654182,
-      "duration": 6.6654854894026645,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34645.flac |",
-      "real_speaker_id": "7178",
-      "position_frames": 95358
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.955227590804327,
-      "end_time": 32.0,
-      "duration": 4.044772409195673,
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-      "overlap": false,
-      "utterance_id": "7786-115688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-115688.flac |",
-      "real_speaker_id": "7786",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_7.wav",
-      "duration": 0.32034013605442174,
-      "start_time": 5.398984854404047
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7786/laugh/0012.wav",
-      "duration": 1.12,
-      "start_time": 26.686059615506803,
-      "speaker_id": "7786"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7786/cough/0010.wav",
-      "duration": 1.2,
-      "start_time": 30.13725832167784,
-      "speaker_id": "7786"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040884.json b/conversations/conv_040884.json
deleted file mode 100644
index e27c7720928fdbb9ff3beddeec9613e645583b10..0000000000000000000000000000000000000000
--- a/conversations/conv_040884.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5439-31625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31625.flac |",
-      "real_speaker_id": "5439",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31624.flac |",
-      "real_speaker_id": "5439",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.842492167888494,
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-      "duration_frames": 92261,
-      "overlap": false,
-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 89268
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.201453984324203,
-      "end_time": 32.0,
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-      "utterance_id": "5439-31624",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31624.flac |",
-      "real_speaker_id": "5439",
-      "position_frames": 87659
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5439/laugh/0006.wav",
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-      "speaker_id": "5439"
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-}
\ No newline at end of file
diff --git a/conversations/conv_040885.json b/conversations/conv_040885.json
deleted file mode 100644
index 7b0ebd5b8259018eb2ef9b77b8e981b021540815..0000000000000000000000000000000000000000
--- a/conversations/conv_040885.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4495-10160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-10160.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "3196-151982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151982.flac |",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151982.flac |",
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-    {
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-      "utterance_id": "3196-151981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 82843
-    },
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.828853312714173,
-      "end_time": 32.0,
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-      "utterance_id": "4495-10160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-10160.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 146645
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 28.41732808702499,
-      "speaker_id": "4495"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040888.json b/conversations/conv_040888.json
deleted file mode 100644
index 05e020497f8b3ad30b68e6a18b7df822bb5ab6b9..0000000000000000000000000000000000000000
--- a/conversations/conv_040888.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.610938218884539,
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-      "overlap": false,
-      "utterance_id": "2013-147610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147610.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.68252778730281,
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-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "7492-105653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-105653.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.602072156738817,
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-      "duration": 5.9015694878154275,
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-      "overlap": true,
-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.536982140222275,
-      "end_time": 28.580739992259986,
-      "duration": 5.043757852037713,
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-      "utterance_id": "7492-87279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-87279.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.418263314580646,
-      "end_time": 32.0,
-      "duration": 2.5817366854193544,
-      "start_frame": 470692,
-      "duration_frames": 41307,
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-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 80726
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/laugh/0040.wav",
-      "duration": 1.2,
-      "start_time": 19.552525152874097,
-      "speaker_id": "2013"
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-      "event_class": "cough",
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-      "speaker_id": "7492"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040892.json b/conversations/conv_040892.json
deleted file mode 100644
index 6e77e9c2d0f5bd9a0d9f32bec37608376f4eef3f..0000000000000000000000000000000000000000
--- a/conversations/conv_040892.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5703-47212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 0
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-      "utterance_id": "5802-76044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5802-76044.flac |",
-      "real_speaker_id": "5802",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.84986063311366,
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-      "utterance_id": "5909-107621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-107621.flac |",
-      "real_speaker_id": "5909",
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-      "segment_id": "seg0004",
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-      "utterance_id": "5703-47212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 88033
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5909-111961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-111961.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.23163328929033,
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-      "duration": 1.768366710709671,
-      "start_frame": 483706,
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-      "overlap": false,
-      "utterance_id": "5703-47198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.32,
-      "start_time": 21.793991178071153,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.7959531267178683,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5703/laugh/0041.wav",
-      "duration": 0.6918442597637762,
-      "start_time": 29.40749981072776,
-      "speaker_id": "5703"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040902.json b/conversations/conv_040902.json
deleted file mode 100644
index 1a2412fb2ef4e8fe8c2de57d8cfdc6c8e99d4244..0000000000000000000000000000000000000000
--- a/conversations/conv_040902.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.360860570592315,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.860444862246884,
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-      "utterance_id": "4295-39940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-39940.flac |",
-      "real_speaker_id": "4295",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.0101432030658275,
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-      "overlap": true,
-      "utterance_id": "2269-88761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-88761.flac |",
-      "real_speaker_id": "2269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.815981007906867,
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-      "duration_frames": 100139,
-      "overlap": false,
-      "utterance_id": "4295-39940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-39940.flac |",
-      "real_speaker_id": "4295",
-      "position_frames": 109767
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.875659066713787,
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-      "utterance_id": "5019-274728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-274728.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.940671461911975,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-39940.flac |",
-      "real_speaker_id": "4295",
-      "position_frames": 209906
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 39822,
-      "overlap": true,
-      "utterance_id": "5019-274728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-274728.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 74973
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4295/laugh/0126.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "2269"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4295/laugh/0027.wav",
-      "duration": 1.18,
-      "start_time": 14.543608796388487,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4295/cough/0061.wav",
-      "duration": 1.16,
-      "start_time": 10.594016040945524,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5019/cough/0063.wav",
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-      "start_time": 23.570983735080528,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4295/cough/0035.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5019/laugh/0090.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "5019"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040905.json b/conversations/conv_040905.json
deleted file mode 100644
index 53637661775ca7abf3509f27ce34c8771f01041b..0000000000000000000000000000000000000000
--- a/conversations/conv_040905.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_040913.json b/conversations/conv_040913.json
deleted file mode 100644
index 21a83db7f89f10263b1cb0da54bd7cf34b6258b8..0000000000000000000000000000000000000000
--- a/conversations/conv_040913.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_040914.json b/conversations/conv_040914.json
deleted file mode 100644
index 7d7025db85088f84ad8fefb3045a9c728ad25a65..0000000000000000000000000000000000000000
--- a/conversations/conv_040914.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_040918.json b/conversations/conv_040918.json
deleted file mode 100644
index 1d0d164eaea5dffb93110d83e65cd4f595b0cbcf..0000000000000000000000000000000000000000
--- a/conversations/conv_040918.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/726/cough/0046.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "726"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8190/laugh/0086.wav",
-      "duration": 0.6463097078665815,
-      "start_time": 6.330821337860623,
-      "speaker_id": "8190"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/726/laugh/0057.wav",
-      "duration": 0.96,
-      "start_time": 11.573800025461097,
-      "speaker_id": "726"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040922.json b/conversations/conv_040922.json
deleted file mode 100644
index 04cb2fce21952742d93bf3b3e0a8972626f51721..0000000000000000000000000000000000000000
--- a/conversations/conv_040922.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.108102473567469,
-      "duration": 5.108102473567469,
-      "start_frame": 0,
-      "duration_frames": 81729,
-      "overlap": false,
-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.750508029730821,
-      "end_time": 11.148439975573648,
-      "duration": 5.397931945842828,
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-      "duration_frames": 86366,
-      "overlap": false,
-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 81729
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.180345698997016,
-      "end_time": 15.572248426424043,
-      "duration": 4.391902727427027,
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-      "duration_frames": 70270,
-      "overlap": true,
-      "utterance_id": "948-132710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132710.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.66801592158515,
-      "end_time": 21.810813549949994,
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-      "duration_frames": 82284,
-      "overlap": false,
-      "utterance_id": "948-132710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132710.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 70270
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.40104910037884,
-      "end_time": 26.910332892337856,
-      "duration": 4.509283791959013,
-      "start_frame": 358416,
-      "duration_frames": 72148,
-      "overlap": false,
-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 168095
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.686102242154103,
-      "end_time": 32.0,
-      "duration": 4.313897757845897,
-      "start_frame": 442977,
-      "duration_frames": 69022,
-      "overlap": false,
-      "utterance_id": "4899-32639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32639.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
-      "duration": 2.625373734773914,
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6221/laugh/0023.wav",
-      "duration": 0.84,
-      "start_time": 5.402481040814407,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6221/laugh/0101.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/948/laugh/0081.wav",
-      "duration": 1.1,
-      "start_time": 15.292215236142251,
-      "speaker_id": "948"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/948/cough/0000.wav",
-      "duration": 1.3387602336730198,
-      "start_time": 21.89798099556534,
-      "speaker_id": "948"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4899/cough/0048.wav",
-      "duration": 1.316209983439566,
-      "start_time": 30.683790016560433,
-      "speaker_id": "4899"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040923.json b/conversations/conv_040923.json
deleted file mode 100644
index fed25772696b9c2f3c03962fb5658b73e6652fd6..0000000000000000000000000000000000000000
--- a/conversations/conv_040923.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.187768783839527,
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-      "duration_frames": 99004,
-      "overlap": false,
-      "utterance_id": "1184-135536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135536.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.364212513954094,
-      "end_time": 12.540728757904112,
-      "duration": 5.176516243950018,
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-      "overlap": false,
-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.157479635995049,
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-      "duration_frames": 48505,
-      "overlap": false,
-      "utterance_id": "1184-135540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135540.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.202973863243884,
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-      "duration": 6.714955348820852,
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-      "duration_frames": 107439,
-      "overlap": false,
-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 82824
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.58973623561721,
-      "end_time": 30.334847420170696,
-      "duration": 5.745111184553485,
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-      "duration_frames": 91921,
-      "overlap": false,
-      "utterance_id": "1184-135536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1184-135536.flac |",
-      "real_speaker_id": "1184",
-      "position_frames": 99004
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.70122062056147,
-      "end_time": 32.0,
-      "duration": 1.2987793794385283,
-      "start_frame": 491219,
-      "duration_frames": 20780,
-      "overlap": false,
-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 190263
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
-      "duration": 0.09736961451247166,
-      "start_time": 26.40436705889674
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
-      "duration": 3.7829478458049888,
-      "start_time": 2.948701223672057
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2401/cough/0013.wav",
-      "duration": 0.7213512813528857,
-      "start_time": 29.789910394792155,
-      "speaker_id": "2401"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040934.json b/conversations/conv_040934.json
deleted file mode 100644
index 2197cb6c46f672fa7634ead7c9ba5e4ce074a122..0000000000000000000000000000000000000000
--- a/conversations/conv_040934.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.71650200953915,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.879727357912279,
-      "duration": 4.879727357912279,
-      "start_frame": 0,
-      "duration_frames": 78075,
-      "overlap": false,
-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.351420194525834,
-      "end_time": 9.202861152295966,
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-      "overlap": false,
-      "utterance_id": "4225-144132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.329416060698664,
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-      "start_frame": 149270,
-      "duration_frames": 83568,
-      "overlap": false,
-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 78075
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.333477813739778,
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-      "utterance_id": "4225-144132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 61623
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.71444959595336,
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-      "duration": 4.739012344557694,
-      "start_frame": 299431,
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-      "overlap": false,
-      "utterance_id": "133-142924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-142924.flac |",
-      "real_speaker_id": "133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.701006308183594,
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-      "utterance_id": "4225-144132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 111258
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.91591606312808,
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-      "real_speaker_id": "569",
-      "position_frames": 161643
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
-      "duration": 18.2988602076688,
-      "start_time": 1.6519480157318693
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/569/laugh/0034.wav",
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-    {
-      "event_class": "laugh",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/569/laugh/0034.wav",
-      "duration": 1.5,
-      "start_time": 9.827375726911125,
-      "speaker_id": "569"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/133/cough/0015.wav",
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-      "start_time": 23.50387542567949,
-      "speaker_id": "133"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/569/laugh/0013.wav",
-      "duration": 1.56,
-      "start_time": 26.321288435809553,
-      "speaker_id": "569"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040938.json b/conversations/conv_040938.json
deleted file mode 100644
index c8e1414e685ae732ee71cac5d4769874901a0666..0000000000000000000000000000000000000000
--- a/conversations/conv_040938.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.9019614315412006,
-      "duration": 3.9019614315412006,
-      "start_frame": 0,
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-      "utterance_id": "1132-145024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-145024.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.296692398433713,
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-      "duration": 4.909261110873775,
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-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "7346-91900",
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_040943.json b/conversations/conv_040943.json
deleted file mode 100644
index f0df9c6c4ae0b84ee225420db368d522dea41f42..0000000000000000000000000000000000000000
--- a/conversations/conv_040943.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 4.340233157015167,
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-      "utterance_id": "8644-262282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262282.flac |",
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-      "position_frames": 0
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-      "utterance_id": "3054-128244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.662894681616514,
-      "end_time": 27.826598287276735,
-      "duration": 4.163703605660221,
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-      "overlap": false,
-      "utterance_id": "8644-262284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262284.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.21718804397819,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8228-232690.flac |",
-      "real_speaker_id": "8228",
-      "position_frames": 78131
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_040944.json b/conversations/conv_040944.json
deleted file mode 100644
index ce9dbb18cd6e76fb833627e6c6fcd268139bd06a..0000000000000000000000000000000000000000
--- a/conversations/conv_040944.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-154838.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
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-      "real_speaker_id": "5199",
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-      "real_speaker_id": "2751",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-154838.flac |",
-      "real_speaker_id": "2532",
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-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "2751-142363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
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-      "speaker_id": 1,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "2532"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040952.json b/conversations/conv_040952.json
deleted file mode 100644
index 53530ebab945cd5d35c8b9298357e6a529dd9b19..0000000000000000000000000000000000000000
--- a/conversations/conv_040952.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4948-28015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28015.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.224608766280019,
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-      "duration_frames": 81701,
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-      "utterance_id": "1665-141758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-141758.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28016.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.549042141801763,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28015.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 65153
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6236",
-      "position_frames": 0
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "duration": 2.5755079828554415,
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-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
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-      "position_frames": 97486
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1665/laugh/0114.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6236/laugh/0138.wav",
-      "duration": 1.6,
-      "start_time": 29.45746039705541,
-      "speaker_id": "6236"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040954.json b/conversations/conv_040954.json
deleted file mode 100644
index 88d325c593189b3f284af9f49291664c8bd42b72..0000000000000000000000000000000000000000
--- a/conversations/conv_040954.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3794.flac |",
-      "real_speaker_id": "94",
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-      "real_speaker_id": "94",
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-      "segment_id": "seg0002",
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-      "start_time": 12.962854105092273,
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-      "utterance_id": "7879-274163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274163.flac |",
-      "real_speaker_id": "7879",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.1518918805918,
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-      "utterance_id": "94-3793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3793.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.855424376853115,
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-      "utterance_id": "7879-274125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274125.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.06257966193519,
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-      "utterance_id": "94-3791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3791.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7879/cough/0063.wav",
-      "duration": 0.84,
-      "start_time": 18.600852200621436,
-      "speaker_id": "7879"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/94/laugh/0088.wav",
-      "duration": 1.04,
-      "start_time": 28.983349995329693,
-      "speaker_id": "94"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040955.json b/conversations/conv_040955.json
deleted file mode 100644
index d73f97a50749145ba4d4e8eb9e2bb01ca8881c1e..0000000000000000000000000000000000000000
--- a/conversations/conv_040955.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.585760510310777,
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-      "overlap": false,
-      "utterance_id": "3179-7133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7133.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.223461247824422,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7153.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141208.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.081808772495847,
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-      "utterance_id": "3179-7142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7142.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.26977503560238,
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-      "utterance_id": "5929-57805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_040959.json b/conversations/conv_040959.json
deleted file mode 100644
index 3c2eb55239be679f1fe33e2bd8e5d5d59f3f40e9..0000000000000000000000000000000000000000
--- a/conversations/conv_040959.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14931.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
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-      "real_speaker_id": "4447",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.162179706472294,
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-      "duration": 5.741220873721326,
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-      "utterance_id": "3807-4955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 94398
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 82521
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_040963.json b/conversations/conv_040963.json
deleted file mode 100644
index e62aba6c008e7c30bc6bbad43843b0977f4683f1..0000000000000000000000000000000000000000
--- a/conversations/conv_040963.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4969-73974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73974.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73974.flac |",
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-    {
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-      "speaker_id": "2724"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/laugh/0028.wav",
-      "duration": 0.5239117874808071,
-      "start_time": 25.470154196562795,
-      "speaker_id": "4969"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1061/laugh/0050.wav",
-      "duration": 1.36,
-      "start_time": 29.272158365603655,
-      "speaker_id": "1061"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040975.json b/conversations/conv_040975.json
deleted file mode 100644
index 7ea36696f93dac07069f6f283dd899d367e92d01..0000000000000000000000000000000000000000
--- a/conversations/conv_040975.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.780643347827748,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6927-87732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6927-87732.flac |",
-      "real_speaker_id": "6927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.3429763975615945,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-26564.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "duration_frames": 59854,
-      "overlap": true,
-      "utterance_id": "6025-58760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58760.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.97390127616177,
-      "end_time": 21.499548057443604,
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-      "duration_frames": 72410,
-      "overlap": false,
-      "utterance_id": "6927-86043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6927-86043.flac |",
-      "real_speaker_id": "6927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.277300474113588,
-      "end_time": 27.242931152462397,
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-      "utterance_id": "5132-26564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-26564.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 96042
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.471487266013476,
-      "end_time": 32.0,
-      "duration": 3.528512733986524,
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-      "duration_frames": 56456,
-      "overlap": false,
-      "utterance_id": "6927-87732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6927-87732.flac |",
-      "real_speaker_id": "6927",
-      "position_frames": 92490
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6927/laugh/0067.wav",
-      "duration": 1.4,
-      "start_time": 0,
-      "speaker_id": "6927"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5132/laugh/0077.wav",
-      "duration": 1.32,
-      "start_time": 24.269940180907557,
-      "speaker_id": "5132"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040978.json b/conversations/conv_040978.json
deleted file mode 100644
index e6d5ddcd28e8cd7c7da81449c998b2ea715478f1..0000000000000000000000000000000000000000
--- a/conversations/conv_040978.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.518263020475675,
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-      "utterance_id": "7467-261121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.334823808570659,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-57667.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 72292
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-57667.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 68471
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.077099326771226,
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-      "utterance_id": "7467-69610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.249452899074356,
-      "end_time": 32.0,
-      "duration": 2.750547100925644,
-      "start_frame": 467991,
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-      "overlap": false,
-      "utterance_id": "6499-91098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-91098.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7467/cough/0058.wav",
-      "duration": 0.6646033692827955,
-      "start_time": 28.278050816717236,
-      "speaker_id": "7467"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040979.json b/conversations/conv_040979.json
deleted file mode 100644
index be127cb1cc0e77df212242466ee9b2a44500a071..0000000000000000000000000000000000000000
--- a/conversations/conv_040979.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "start_frame": 0,
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-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.446515621591522,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-366.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
-      "real_speaker_id": "598",
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-    {
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-      "speaker_id": 2,
-      "start_time": 20.312270312171414,
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-      "utterance_id": "1885-136863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1885-136863.flac |",
-      "real_speaker_id": "1885",
-      "position_frames": 90288
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.549371078904183,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127704.flac |",
-      "real_speaker_id": "598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-366.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 94654
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "start_time": 29.787438404377323
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_040980.json b/conversations/conv_040980.json
deleted file mode 100644
index 959baba42071787c5c5c9aa81e86ec3b73efc33d..0000000000000000000000000000000000000000
--- a/conversations/conv_040980.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.994432202066664,
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-      "start_frame": 0,
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-      "utterance_id": "4463-16807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-16807.flac |",
-      "real_speaker_id": "4463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.518392432754788,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-127997.flac |",
-      "real_speaker_id": "313",
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "4463-26851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4463-26851.flac |",
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-    {
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/313/cough/0104.wav",
-      "duration": 1.1193922961056815,
-      "start_time": 13.199961484061195,
-      "speaker_id": "313"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4463/laugh/0061.wav",
-      "duration": 1.68,
-      "start_time": 10.959075486823803,
-      "speaker_id": "4463"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040996.json b/conversations/conv_040996.json
deleted file mode 100644
index 9e62c47969cc03996fd921a5117ece9ca475ee20..0000000000000000000000000000000000000000
--- a/conversations/conv_040996.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.2401448812009885,
-      "duration": 3.2401448812009885,
-      "start_frame": 0,
-      "duration_frames": 51842,
-      "overlap": false,
-      "utterance_id": "716-129583",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129583.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.106801554804221,
-      "end_time": 9.654652035762076,
-      "duration": 5.547850480957854,
-      "start_frame": 65708,
-      "duration_frames": 88765,
-      "overlap": false,
-      "utterance_id": "2764-36617",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2764-36617.flac |",
-      "real_speaker_id": "2764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.420028884731082,
-      "end_time": 16.41676776344302,
-      "duration": 5.996738878711938,
-      "start_frame": 166720,
-      "duration_frames": 95947,
-      "overlap": false,
-      "utterance_id": "7220-77911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77911.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.10692282449473,
-      "end_time": 20.587826393324814,
-      "duration": 3.4809035688300822,
-      "start_frame": 273710,
-      "duration_frames": 55694,
-      "overlap": false,
-      "utterance_id": "716-129581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.05926123249141,
-      "end_time": 27.95460834764538,
-      "duration": 6.89534711515397,
-      "start_frame": 336948,
-      "duration_frames": 110325,
-      "overlap": false,
-      "utterance_id": "7220-77911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77911.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 95947
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.692184959975815,
-      "end_time": 32.0,
-      "duration": 3.3078150400241846,
-      "start_frame": 459074,
-      "duration_frames": 52925,
-      "overlap": false,
-      "utterance_id": "716-129581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 55694
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_0.wav",
-      "duration": 0.385827664399093,
-      "start_time": 20.249701687353927
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/716/cough/0026.wav",
-      "duration": 0.96,
-      "start_time": 20.61283770916426,
-      "speaker_id": "716"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/716/laugh/0026.wav",
-      "duration": 0.8251211045428198,
-      "start_time": 31.17487889545718,
-      "speaker_id": "716"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_040997.json b/conversations/conv_040997.json
deleted file mode 100644
index cad487dffb31fe17a44d3cccc86926ff2ef0a3c1..0000000000000000000000000000000000000000
--- a/conversations/conv_040997.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.548967729970569,
-      "duration": 4.548967729970569,
-      "start_frame": 0,
-      "duration_frames": 72783,
-      "overlap": false,
-      "utterance_id": "1342-133248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133248.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.220679595494307,
-      "end_time": 11.018782103365808,
-      "duration": 5.798102507871502,
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-      "duration_frames": 92769,
-      "overlap": false,
-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.48972011787481,
-      "end_time": 16.335167062209152,
-      "duration": 4.845446944334343,
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-      "duration_frames": 77527,
-      "overlap": false,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.761126360309323,
-      "end_time": 20.17912453573834,
-      "duration": 3.4179981754290147,
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-      "duration_frames": 54687,
-      "overlap": false,
-      "utterance_id": "7423-89169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89169.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.557097607722312,
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-      "duration": 6.428257766165546,
-      "start_frame": 328913,
-      "duration_frames": 102852,
-      "overlap": false,
-      "utterance_id": "1342-130497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-130497.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.22236737957077,
-      "end_time": 32.0,
-      "duration": 3.7776326204292303,
-      "start_frame": 451557,
-      "duration_frames": 60442,
-      "overlap": false,
-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 77527
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.7506522563502722,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1342/cough/0029.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7423/cough/0071.wav",
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-      "speaker_id": "7423"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.36,
-      "start_time": 10.110747649429637,
-      "speaker_id": "6974"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1342/laugh/0047.wav",
-      "duration": 1.42,
-      "start_time": 25.326308415419195,
-      "speaker_id": "1342"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1342/cough/0008.wav",
-      "duration": 0.4981250171200172,
-      "start_time": 27.158224624741585,
-      "speaker_id": "1342"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041000.json b/conversations/conv_041000.json
deleted file mode 100644
index 4a228ad7e25fedbc5f56db5f127a8f16273ced36..0000000000000000000000000000000000000000
--- a/conversations/conv_041000.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.268188896380911,
-      "duration": 3.268188896380911,
-      "start_frame": 0,
-      "duration_frames": 52291,
-      "overlap": false,
-      "utterance_id": "7318-96168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.814453218969369,
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-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.642522768983925,
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-      "duration": 3.884725816504409,
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-      "duration_frames": 62155,
-      "overlap": true,
-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 93848
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.957469053805019,
-      "end_time": 20.897760122109933,
-      "duration": 5.940291068304914,
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-      "duration_frames": 95044,
-      "overlap": true,
-      "utterance_id": "1417-1536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1536.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.49011654224103,
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-      "duration_frames": 76305,
-      "overlap": false,
-      "utterance_id": "7318-96151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.065561883066394,
-      "end_time": 32.0,
-      "duration": 3.934438116933606,
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-      "duration_frames": 62951,
-      "overlap": false,
-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 156003
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.32,
-      "start_time": 4.91686774381034,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1417/cough/0116.wav",
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-      "start_time": 14.281623745684689,
-      "speaker_id": "1417"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7318/laugh/0094.wav",
-      "duration": 1.24,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6476/cough/0062.wav",
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-      "start_time": 27.697045952487397,
-      "speaker_id": "6476"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041001.json b/conversations/conv_041001.json
deleted file mode 100644
index 18ceb919c49e5284fbbb3803593f15ffb83004db..0000000000000000000000000000000000000000
--- a/conversations/conv_041001.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.493952549356838,
-      "duration": 5.493952549356838,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3983-5371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5371.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "3983-5331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1079-128631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1079-128631.flac |",
-      "real_speaker_id": "1079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.835622803429423,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 86316
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "3289",
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-    },
-    {
-      "segment_id": "seg0005",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "3983"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041011.json b/conversations/conv_041011.json
deleted file mode 100644
index 6afea6507f1c97f6e094f726a9019518942431bd..0000000000000000000000000000000000000000
--- a/conversations/conv_041011.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.231288950983151,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 63883
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.09781023132143,
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-      "duration": 4.902189768678571,
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-      "duration_frames": 78435,
-      "overlap": false,
-      "utterance_id": "110-2",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 88597
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_041016.json b/conversations/conv_041016.json
deleted file mode 100644
index f24a6a02c269dd41b9b98db474531644acafcb1a..0000000000000000000000000000000000000000
--- a/conversations/conv_041016.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.98623927959454,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65530.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-54612.flac |",
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-      "real_speaker_id": "4807",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5949-65529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65529.flac |",
-      "real_speaker_id": "5949",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.197874625019757,
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-      "utterance_id": "4807-26853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26853.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 136377
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041020.json b/conversations/conv_041020.json
deleted file mode 100644
index de3e5a3a80313affd911e337a5d84ff275e63acf..0000000000000000000000000000000000000000
--- a/conversations/conv_041020.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "segment_id": "seg0006",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041036.json b/conversations/conv_041036.json
deleted file mode 100644
index 55d125353768fac8ba1412a632e0d9409bfd3fc8..0000000000000000000000000000000000000000
--- a/conversations/conv_041036.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-207.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 78809
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.99563581451666,
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-      "utterance_id": "8413-284515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8413-284515.flac |",
-      "real_speaker_id": "8413",
-      "position_frames": 79385
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.56546826449572,
-      "end_time": 32.0,
-      "duration": 2.4345317355042795,
-      "start_frame": 473047,
-      "duration_frames": 38952,
-      "overlap": false,
-      "utterance_id": "2930-163437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163437.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 65906
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
-      "duration": 1.3946229625392084,
-      "start_time": 15.849358931678486
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/44/laugh/0068.wav",
-      "duration": 0.7382066081940001,
-      "start_time": 4.991951039492588,
-      "speaker_id": "44"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8413/laugh/0005.wav",
-      "duration": 0.7061878878228837,
-      "start_time": 4.468651347571403,
-      "speaker_id": "8413"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/laugh/0090.wav",
-      "duration": 1.24,
-      "start_time": 11.495775077551915,
-      "speaker_id": "2930"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/44/cough/0117.wav",
-      "duration": 0.3995348417338215,
-      "start_time": 14.680323827934782,
-      "speaker_id": "44"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/cough/0052.wav",
-      "duration": 0.8107595404027894,
-      "start_time": 31.18924045959721,
-      "speaker_id": "2930"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041041.json b/conversations/conv_041041.json
deleted file mode 100644
index 60b05ab4f36a9976390b0f8a1839bf51fa2abc06..0000000000000000000000000000000000000000
--- a/conversations/conv_041041.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.802170256293615,
-      "duration": 5.802170256293615,
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-      "overlap": false,
-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.246969741371549,
-      "end_time": 11.883470847008653,
-      "duration": 5.636501105637103,
-      "start_frame": 99951,
-      "duration_frames": 90184,
-      "overlap": false,
-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 92834
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.386314773260793,
-      "end_time": 17.442728815452675,
-      "duration": 5.056414042191883,
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-      "duration_frames": 80902,
-      "overlap": false,
-      "utterance_id": "3114-170976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "3114-170976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 80902
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.543999573562918,
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-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 183018
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 5.050893943255289,
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-      "overlap": false,
-      "utterance_id": "3114-170976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170976.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 152749
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2696/laugh/0024.wav",
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-      "start_time": 6.065739971212422,
-      "speaker_id": "2696"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2696/laugh/0032.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3114/laugh/0104.wav",
-      "duration": 1.28,
-      "start_time": 10.828802047031616,
-      "speaker_id": "3114"
-    },
-    {
-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3114/cough/0043.wav",
-      "duration": 1.0586647335700603,
-      "start_time": 30.941335266429938,
-      "speaker_id": "3114"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041056.json b/conversations/conv_041056.json
deleted file mode 100644
index ce7f20d5fd0f9a219eda555619f0a07e5566748c..0000000000000000000000000000000000000000
--- a/conversations/conv_041056.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "797-127183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127183.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.411115529595927,
-      "end_time": 11.997003475638763,
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-      "overlap": false,
-      "utterance_id": "7314-93277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-93277.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
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-      "overlap": false,
-      "utterance_id": "4495-10160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-10160.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7314-77782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-77782.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.74973133172416,
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-      "utterance_id": "4495-18533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-18533.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 73636,
-      "overlap": false,
-      "utterance_id": "7314-93276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-93276.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/797/cough/0002.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "7314"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7314/laugh/0095.wav",
-      "duration": 1.26,
-      "start_time": 16.92831623846949,
-      "speaker_id": "7314"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7314/cough/0032.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7314/cough/0048.wav",
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-      "start_time": 26.476677945561214,
-      "speaker_id": "7314"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041057.json b/conversations/conv_041057.json
deleted file mode 100644
index b920459251319b995951d989a173b753d89afcc5..0000000000000000000000000000000000000000
--- a/conversations/conv_041057.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.129943957246567,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "1341-9206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "1463-134465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    },
-    {
-      "segment_id": "seg0005",
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-      "position_frames": 194311
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-    {
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1463/laugh/0121.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041061.json b/conversations/conv_041061.json
deleted file mode 100644
index f283efdfe98c8e797ec4189386c7f16388933534..0000000000000000000000000000000000000000
--- a/conversations/conv_041061.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.382055876605654,
-      "duration": 4.382055876605654,
-      "start_frame": 0,
-      "duration_frames": 70112,
-      "overlap": false,
-      "utterance_id": "1923-161972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161972.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.746450198467395,
-      "end_time": 9.378665755203095,
-      "duration": 4.632215556735701,
-      "start_frame": 75943,
-      "duration_frames": 74115,
-      "overlap": true,
-      "utterance_id": "1923-155646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-155646.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.27318074092494,
-      "end_time": 15.763347059008849,
-      "duration": 5.49016631808391,
-      "start_frame": 164370,
-      "duration_frames": 87842,
-      "overlap": false,
-      "utterance_id": "6741-253244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253244.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.74680908344995,
-      "end_time": 21.953751507069796,
-      "duration": 5.206942423619848,
-      "start_frame": 267948,
-      "duration_frames": 83311,
-      "overlap": false,
-      "utterance_id": "585-294811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.04942905531061,
-      "end_time": 29.924125435537302,
-      "duration": 6.87469638022669,
-      "start_frame": 368790,
-      "duration_frames": 109995,
-      "overlap": false,
-      "utterance_id": "1923-161975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161975.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.456902726623284,
-      "end_time": 32.0,
-      "duration": 1.5430972733767163,
-      "start_frame": 487310,
-      "duration_frames": 24689,
-      "overlap": false,
-      "utterance_id": "6741-79958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-79958.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 4.467619047619047,
-      "start_time": 5.822344037737987
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.0279448024485127,
-      "start_time": 22.0249493276503
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_041077.json b/conversations/conv_041077.json
deleted file mode 100644
index ae85936c43af701df672d3d4b53508a26597a02e..0000000000000000000000000000000000000000
--- a/conversations/conv_041077.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.53392900441194,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.995287831684337,
-      "duration": 6.995287831684337,
-      "start_frame": 0,
-      "duration_frames": 111924,
-      "overlap": false,
-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.74543039614986,
-      "end_time": 14.212946528553026,
-      "duration": 6.4675161324031665,
-      "start_frame": 123926,
-      "duration_frames": 103480,
-      "overlap": false,
-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 111924
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 15.06091058414978,
-      "end_time": 18.405086209982677,
-      "duration": 3.344175625832898,
-      "start_frame": 240974,
-      "duration_frames": 53506,
-      "overlap": false,
-      "utterance_id": "2010-121416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-121416.flac |",
-      "real_speaker_id": "2010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.485417831675136,
-      "end_time": 25.720906718627962,
-      "duration": 6.235488886952826,
-      "start_frame": 311766,
-      "duration_frames": 99767,
-      "overlap": false,
-      "utterance_id": "6080-58025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58025.flac |",
-      "real_speaker_id": "6080",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.178760025657617,
-      "end_time": 31.53392900441194,
-      "duration": 5.355168978754324,
-      "start_frame": 418860,
-      "duration_frames": 85682,
-      "overlap": false,
-      "utterance_id": "2010-121416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-121416.flac |",
-      "real_speaker_id": "2010",
-      "position_frames": 53506
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
-      "duration": 3.369737489111929,
-      "start_time": 13.773063008671487
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
-      "duration": 2.115301212746267,
-      "start_time": 19.231437527931494
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7512/cough/0036.wav",
-      "duration": 0.794389191951796,
-      "start_time": 0,
-      "speaker_id": "7512"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041082.json b/conversations/conv_041082.json
deleted file mode 100644
index 1f98661bb76e4963e3b8abcd2d30ae4afc05513b..0000000000000000000000000000000000000000
--- a/conversations/conv_041082.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.1164168650369857,
-      "duration": 3.1164168650369857,
-      "start_frame": 0,
-      "duration_frames": 49862,
-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.1286888172312612,
-      "end_time": 9.389910980188748,
-      "duration": 6.261222162957488,
-      "start_frame": 50059,
-      "duration_frames": 100179,
-      "overlap": true,
-      "utterance_id": "65-125860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-125860.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.308318504175759,
-      "end_time": 15.277809987669155,
-      "duration": 4.969491483493395,
-      "start_frame": 164933,
-      "duration_frames": 79511,
-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 49862
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.47369870342058,
-      "end_time": 19.783894979609553,
-      "duration": 4.310196276188974,
-      "start_frame": 247579,
-      "duration_frames": 68963,
-      "overlap": false,
-      "utterance_id": "3793-4707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-4707.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.158226002798987,
-      "end_time": 24.538073006913486,
-      "duration": 4.379847004114498,
-      "start_frame": 322531,
-      "duration_frames": 70077,
-      "overlap": true,
-      "utterance_id": "65-122444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-122444.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.559265424132203,
-      "end_time": 30.28557102957748,
-      "duration": 3.726305605445275,
-      "start_frame": 424948,
-      "duration_frames": 59620,
-      "overlap": false,
-      "utterance_id": "3793-33942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-33942.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.72665645708465,
-      "end_time": 32.0,
-      "duration": 1.2733435429153488,
-      "start_frame": 491626,
-      "duration_frames": 20373,
-      "overlap": false,
-      "utterance_id": "65-125860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-125860.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 100179
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3793/laugh/0008.wav",
-      "duration": 0.5992829747590244,
-      "start_time": 16.06423076075346,
-      "speaker_id": "3793"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3793/laugh/0013.wav",
-      "duration": 0.9958634400410508,
-      "start_time": 28.803640812170258,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/65/laugh/0011.wav",
-      "duration": 1.3491853434232375,
-      "start_time": 30.650814656576763,
-      "speaker_id": "65"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041085.json b/conversations/conv_041085.json
deleted file mode 100644
index 03c61f39a6f6444219446d282d3a11cadc9daa62..0000000000000000000000000000000000000000
--- a/conversations/conv_041085.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.006603340672051,
-      "duration": 5.006603340672051,
-      "start_frame": 0,
-      "duration_frames": 80105,
-      "overlap": false,
-      "utterance_id": "5725-48803",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-48803.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.703919320095109,
-      "end_time": 11.983608840644909,
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-      "duration_frames": 100475,
-      "overlap": false,
-      "utterance_id": "150-132655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-132655.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.559564659622641,
-      "end_time": 16.416247594749677,
-      "duration": 3.8566829351270364,
-      "start_frame": 200953,
-      "duration_frames": 61706,
-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.588531391575007,
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-      "duration": 5.107985878674402,
-      "start_frame": 265416,
-      "duration_frames": 81727,
-      "overlap": false,
-      "utterance_id": "150-132655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-132655.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 100475
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.93639788483926,
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-      "overlap": false,
-      "utterance_id": "5725-44938",
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-      "real_speaker_id": "5725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.00502591845077,
-      "end_time": 32.0,
-      "duration": 3.9949740815492305,
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-      "duration_frames": 63919,
-      "overlap": false,
-      "utterance_id": "150-126107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/150-126107.flac |",
-      "real_speaker_id": "150",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5725/laugh/0063.wav",
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-      "start_time": 25.193463965866457,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5725/cough/0020.wav",
-      "duration": 1.032865861819842,
-      "start_time": 27.56224220718524,
-      "speaker_id": "5725"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/150/laugh/0043.wav",
-      "duration": 0.84,
-      "start_time": 28.337828255895584,
-      "speaker_id": "150"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041093.json b/conversations/conv_041093.json
deleted file mode 100644
index c3125f49ac00606f028dd9da3fb38fbadf81d814..0000000000000000000000000000000000000000
--- a/conversations/conv_041093.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.528114408897196,
-      "duration": 5.528114408897196,
-      "start_frame": 0,
-      "duration_frames": 88449,
-      "overlap": false,
-      "utterance_id": "4051-10927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-10927.flac |",
-      "real_speaker_id": "4051",
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-      "real_speaker_id": "8710",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
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-      "real_speaker_id": "8710",
-      "position_frames": 0
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-      "duration": 1.52,
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-      "speaker_id": "1473"
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-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 30.213223491991517,
-      "speaker_id": "1473"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041094.json b/conversations/conv_041094.json
deleted file mode 100644
index 1b4b20d65b73fe39f218f9115cf231ea2bd27bc9..0000000000000000000000000000000000000000
--- a/conversations/conv_041094.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 8.230790806169146,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
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-      "overlap": false,
-      "utterance_id": "5029-30593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-30593.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.970878713881767,
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-      "overlap": false,
-      "utterance_id": "5239-31629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 60282
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.598169819034606,
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-      "utterance_id": "4192-5332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4192-5332.flac |",
-      "real_speaker_id": "4192",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.424992847418654,
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-      "utterance_id": "5239-31629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 160450
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "5239"
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-}
\ No newline at end of file
diff --git a/conversations/conv_041098.json b/conversations/conv_041098.json
deleted file mode 100644
index 22ae10172b5ad9608ad2777dc86369f17e789215..0000000000000000000000000000000000000000
--- a/conversations/conv_041098.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.687544771195004,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-141428.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 65731
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-    {
-      "segment_id": "seg0003",
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-      "duration_frames": 64042,
-      "overlap": true,
-      "utterance_id": "4899-32637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32637.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.065037582607154,
-      "end_time": 30.687544771195004,
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-      "overlap": false,
-      "utterance_id": "2448-141428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-141428.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 107102
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_5.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2448/laugh/0001.wav",
-      "duration": 1.28,
-      "start_time": 3.1313046373902105,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4899/laugh/0034.wav",
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-      "start_time": 17.845985785245883,
-      "speaker_id": "4899"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2448/laugh/0049.wav",
-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "2448"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041104.json b/conversations/conv_041104.json
deleted file mode 100644
index 36a7bb25ba128738c0abde515e681412601cc0c4..0000000000000000000000000000000000000000
--- a/conversations/conv_041104.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4174-107938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-107938.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.3575405018090425,
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-      "utterance_id": "6497-234106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234106.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.540603951664497,
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-      "utterance_id": "711-187466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187466.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.723019590697305,
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-      "utterance_id": "4174-159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-159.flac |",
-      "real_speaker_id": "4174",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "711-187466",
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-      "real_speaker_id": "711",
-      "position_frames": 59161
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6497/laugh/0068.wav",
-      "duration": 1.28,
-      "start_time": 20.499143158428463,
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-    {
-      "event_class": "cough",
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-      "duration": 1.16,
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-    {
-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "711"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041108.json b/conversations/conv_041108.json
deleted file mode 100644
index 1a397a5d3e698bc7e2d43562fd2bc3de83ac10dc..0000000000000000000000000000000000000000
--- a/conversations/conv_041108.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_041112.json b/conversations/conv_041112.json
deleted file mode 100644
index ea731a5671adb1ee9515c8acc5211762900765fc..0000000000000000000000000000000000000000
--- a/conversations/conv_041112.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.855075090144847,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-186215.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_041124.json b/conversations/conv_041124.json
deleted file mode 100644
index 48be2f83b92afdfdfa0c7fc654cc5b61fc9a4ba3..0000000000000000000000000000000000000000
--- a/conversations/conv_041124.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_041128.json b/conversations/conv_041128.json
deleted file mode 100644
index 84f9b77f0f11663ec9cec70a1e645915996216cd..0000000000000000000000000000000000000000
--- a/conversations/conv_041128.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
-      "start_time": 2.8426277815780154
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 2.0384099529028767,
-      "start_time": 29.7984527015024
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3934/laugh/0071.wav",
-      "duration": 1.64,
-      "start_time": 9.973104870280087,
-      "speaker_id": "3934"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041132.json b/conversations/conv_041132.json
deleted file mode 100644
index 7c1915f59c358305473ffe92134a5e9cf19b9455..0000000000000000000000000000000000000000
--- a/conversations/conv_041132.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.338474539971537,
-      "duration": 4.338474539971537,
-      "start_frame": 0,
-      "duration_frames": 69415,
-      "overlap": false,
-      "utterance_id": "3819-134146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134146.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.23690585661082,
-      "end_time": 11.746301362853693,
-      "duration": 6.509395506242873,
-      "start_frame": 83790,
-      "duration_frames": 104150,
-      "overlap": false,
-      "utterance_id": "2198-46877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-46877.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.617002433493377,
-      "end_time": 16.82192831567645,
-      "duration": 4.204925882183072,
-      "start_frame": 201872,
-      "duration_frames": 67278,
-      "overlap": false,
-      "utterance_id": "8479-276730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
-      "real_speaker_id": "8479",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.73588420670077,
-      "end_time": 22.719136801716907,
-      "duration": 4.983252595016137,
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-      "duration_frames": 79732,
-      "overlap": true,
-      "utterance_id": "8479-276730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8479-276730.flac |",
-      "real_speaker_id": "8479",
-      "position_frames": 67278
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.079757704987745,
-      "end_time": 26.787825626229747,
-      "duration": 3.708067921242002,
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-      "overlap": true,
-      "utterance_id": "3819-134145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134145.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.087666609484383,
-      "end_time": 32.0,
-      "duration": 3.9123333905156166,
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-      "duration_frames": 62597,
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-      "utterance_id": "2198-133546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-133546.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3819/laugh/0087.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.48550785538912256,
-      "start_time": 16.98928657317913,
-      "speaker_id": "8479"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3819/laugh/0000.wav",
-      "duration": 0.8046069999669412,
-      "start_time": 26.9437357683873,
-      "speaker_id": "3819"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3819/cough/0000.wav",
-      "duration": 0.5032640173329818,
-      "start_time": 22.43440258907056,
-      "speaker_id": "3819"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041139.json b/conversations/conv_041139.json
deleted file mode 100644
index d9a738eb8bd23a1b8e900812c316146eecc646b8..0000000000000000000000000000000000000000
--- a/conversations/conv_041139.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.156549156659896,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.52906288258456,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.070523767502706,
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-      "overlap": true,
-      "utterance_id": "820-123133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 94250
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.74080366589102,
-      "end_time": 22.327851331920943,
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-      "duration_frames": 73392,
-      "overlap": false,
-      "utterance_id": "820-123133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 160185
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.848162739044422,
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-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 81407
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123133.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 233577
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/820/laugh/0053.wav",
-      "duration": 1.286771707834085,
-      "start_time": 11.644348498394038,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/820/laugh/0063.wav",
-      "duration": 1.44,
-      "start_time": 16.248352368689456,
-      "speaker_id": "820"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041144.json b/conversations/conv_041144.json
deleted file mode 100644
index 6a42a36cc0295391e741c229c092bf439f0b2d37..0000000000000000000000000000000000000000
--- a/conversations/conv_041144.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128988.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2140",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128988.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 59958
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.804411396398635,
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-      "utterance_id": "1643-138089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1643-138089.flac |",
-      "real_speaker_id": "1643",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-160867.flac |",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1643-138089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1643-138089.flac |",
-      "real_speaker_id": "1643",
-      "position_frames": 102637
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_041145.json b/conversations/conv_041145.json
deleted file mode 100644
index 6e6632a739fd43650973430cd874553ca2d1bcee..0000000000000000000000000000000000000000
--- a/conversations/conv_041145.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "3020-888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "speaker_id": "3020"
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-      "event_class": "laugh",
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-      "start_time": 20.87819662312814,
-      "speaker_id": "3790"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041149.json b/conversations/conv_041149.json
deleted file mode 100644
index 26cdafc7f2bdcd5d495a63f12ac9f0670fb502d7..0000000000000000000000000000000000000000
--- a/conversations/conv_041149.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.3976449016377686,
-      "end_time": 9.820498308108785,
-      "duration": 4.422853406471016,
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-      "utterance_id": "4161-185349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 9.734367778239452,
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-      "overlap": true,
-      "utterance_id": "1370-138531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 70765
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.422968097643345,
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-      "overlap": false,
-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 70482
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.17281478479783,
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-      "duration_frames": 50733,
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-      "utterance_id": "4013-11734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-11734.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.82209430379862,
-      "end_time": 32.0,
-      "duration": 2.1779056962013783,
-      "start_frame": 477153,
-      "duration_frames": 34846,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 144484
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
-      "duration": 3.105914417768747,
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "4161"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041153.json b/conversations/conv_041153.json
deleted file mode 100644
index 8712d7383b1941c9691fd3f0384ed19f7a4981f1..0000000000000000000000000000000000000000
--- a/conversations/conv_041153.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.451110289861273,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "203-132069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132069.flac |",
-      "real_speaker_id": "203",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "utterance_id": "8347-282412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-282412.flac |",
-      "real_speaker_id": "8347",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132069.flac |",
-      "real_speaker_id": "203",
-      "position_frames": 50045
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.95373156597931,
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-      "duration_frames": 86095,
-      "overlap": false,
-      "utterance_id": "8347-282412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-282412.flac |",
-      "real_speaker_id": "8347",
-      "position_frames": 60268
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.875023647264076,
-      "end_time": 31.451110289861273,
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-      "overlap": true,
-      "utterance_id": "47-122796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
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-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 1.1159540916522337,
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-      "speaker_id": "47"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041154.json b/conversations/conv_041154.json
deleted file mode 100644
index 6e76f23b82dda7c5e827a18f81a8c6e3fd0f688a..0000000000000000000000000000000000000000
--- a/conversations/conv_041154.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1601-136848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136848.flac |",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.786923653145358,
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-      "real_speaker_id": "1601",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_041165.json b/conversations/conv_041165.json
deleted file mode 100644
index 6f89da2e45009b1e7747af7e15e6819fd66a6a80..0000000000000000000000000000000000000000
--- a/conversations/conv_041165.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_041169.json b/conversations/conv_041169.json
deleted file mode 100644
index 94e33603361338a31beb93f046689ed2ff9009cf..0000000000000000000000000000000000000000
--- a/conversations/conv_041169.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_041173.json b/conversations/conv_041173.json
deleted file mode 100644
index fe319675e4e50e85ae6d71b2e83455b5288c78bf..0000000000000000000000000000000000000000
--- a/conversations/conv_041173.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_041178.json b/conversations/conv_041178.json
deleted file mode 100644
index ef28655b5c36f2d63b8551fcd488809c27b2cf0a..0000000000000000000000000000000000000000
--- a/conversations/conv_041178.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 2,
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-      "duration": 1.2645935555911596,
-      "start_time": 16.698680778176822,
-      "speaker_id": "8824"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5682/cough/0129.wav",
-      "duration": 1.0278140045933,
-      "start_time": 28.542866149209157,
-      "speaker_id": "5682"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5682/laugh/0121.wav",
-      "duration": 1.7153232560065503,
-      "start_time": 30.28467674399345,
-      "speaker_id": "5682"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041181.json b/conversations/conv_041181.json
deleted file mode 100644
index ca3717c6baea624fc93268d494e0fcc092f4fe85..0000000000000000000000000000000000000000
--- a/conversations/conv_041181.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.386189384631634,
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-      "start_frame": 0,
-      "duration_frames": 70179,
-      "overlap": false,
-      "utterance_id": "7938-110128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-110128.flac |",
-      "real_speaker_id": "7938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.639843576819633,
-      "end_time": 8.230091234839971,
-      "duration": 3.5902476580203375,
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-      "duration_frames": 57443,
-      "overlap": false,
-      "utterance_id": "2816-4136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2816-4136.flac |",
-      "real_speaker_id": "2816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.329320218224078,
-      "end_time": 14.946381322184697,
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-      "overlap": false,
-      "utterance_id": "7938-109180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-109180.flac |",
-      "real_speaker_id": "7938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.585834707311788,
-      "end_time": 21.016024642844442,
-      "duration": 5.430189935532654,
-      "start_frame": 249373,
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-      "overlap": false,
-      "utterance_id": "1849-144965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-144965.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.95662935311834,
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-      "utterance_id": "7938-109179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-109179.flac |",
-      "real_speaker_id": "7938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.327034484723264,
-      "end_time": 32.0,
-      "duration": 2.6729655152767364,
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-      "duration_frames": 42767,
-      "overlap": false,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1849/laugh/0074.wav",
-      "duration": 1.8231702466181219,
-      "start_time": 21.124764572896648,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1849/cough/0019.wav",
-      "duration": 0.75962984065465,
-      "start_time": 14.76329097645281,
-      "speaker_id": "1849"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_041186.json b/conversations/conv_041186.json
deleted file mode 100644
index e23703478c03007b6746e3820ce466ce55456e6d..0000000000000000000000000000000000000000
--- a/conversations/conv_041186.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.176862573570627,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6534-64469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64469.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-34596.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-64469.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 84248
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.348972255089507,
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-      "utterance_id": "6610-34596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-34596.flac |",
-      "real_speaker_id": "6610",
-      "position_frames": 97249
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6534-71091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6534-71091.flac |",
-      "real_speaker_id": "6534",
-      "position_frames": 0
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-    {
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-    {
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-      "duration": 1.24,
-      "start_time": 22.613408910295032,
-      "speaker_id": "6534"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041190.json b/conversations/conv_041190.json
deleted file mode 100644
index bfe2d17705a19e15b8c0d6fcc38cb00266358cf5..0000000000000000000000000000000000000000
--- a/conversations/conv_041190.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.775723434874592,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "561-126312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126312.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.375198527873348,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126319.flac |",
-      "real_speaker_id": "561",
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-      "segment_id": "seg0002",
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-      "start_time": 9.358677216318485,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 16.664721829771338,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-129306.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.312120370926074,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/310-129055.flac |",
-      "real_speaker_id": "310",
-      "position_frames": 98527
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "453-129306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-129306.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 60457
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "start_time": 20.694405401101395,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041197.json b/conversations/conv_041197.json
deleted file mode 100644
index 1116e568c27b25f38f8f8601fdbc195dcf761d99..0000000000000000000000000000000000000000
--- a/conversations/conv_041197.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1353-134827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-134827.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7360-86712.flac |",
-      "real_speaker_id": "7360",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.279462574356426,
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-      "duration_frames": 77359,
-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1353-122456",
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-      "real_speaker_id": "1353",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 77359
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "duration": 1.38,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041201.json b/conversations/conv_041201.json
deleted file mode 100644
index d45bedbf0835160ddf29018aff837656e6194946..0000000000000000000000000000000000000000
--- a/conversations/conv_041201.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.055332306617188,
-      "duration": 5.055332306617188,
-      "start_frame": 0,
-      "duration_frames": 80885,
-      "overlap": false,
-      "utterance_id": "6373-65772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.799150902818619,
-      "end_time": 10.724121060627736,
-      "duration": 4.924970157809117,
-      "start_frame": 92786,
-      "duration_frames": 78799,
-      "overlap": false,
-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.80589161291052,
-      "end_time": 17.970076880226244,
-      "duration": 6.164185267315723,
-      "start_frame": 188894,
-      "duration_frames": 98626,
-      "overlap": false,
-      "utterance_id": "6373-65772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6373-65772.flac |",
-      "real_speaker_id": "6373",
-      "position_frames": 80885
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.094195418040584,
-      "end_time": 24.267390598599846,
-      "duration": 5.173195180559263,
-      "start_frame": 305507,
-      "duration_frames": 82771,
-      "overlap": false,
-      "utterance_id": "8443-294707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.645102189352816,
-      "end_time": 31.22944313418417,
-      "duration": 6.584340944831354,
-      "start_frame": 394321,
-      "duration_frames": 105349,
-      "overlap": false,
-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 78799
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.598911405205115,
-      "end_time": 32.0,
-      "duration": 0.401088594794885,
-      "start_frame": 505582,
-      "duration_frames": 6417,
-      "overlap": false,
-      "utterance_id": "8443-294707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 82771
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/84654.wav",
-      "duration": 1.7703174603174603,
-      "start_time": 1.257372082055032
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5867/cough/0057.wav",
-      "duration": 1.3653183463259952,
-      "start_time": 10.799447101454602,
-      "speaker_id": "5867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041206.json b/conversations/conv_041206.json
deleted file mode 100644
index 2fe3e94e4ce5ca06355f53d355f243af808598aa..0000000000000000000000000000000000000000
--- a/conversations/conv_041206.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.407359389850225,
-      "duration": 4.407359389850225,
-      "start_frame": 0,
-      "duration_frames": 70517,
-      "overlap": false,
-      "utterance_id": "5339-14133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14133.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.034489094855275,
-      "end_time": 11.198584866817399,
-      "duration": 6.164095771962122,
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-      "duration_frames": 98625,
-      "overlap": false,
-      "utterance_id": "3547-156970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-156970.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.647910985466776,
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-      "duration": 3.62430468167954,
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-      "duration_frames": 57988,
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-      "utterance_id": "5339-14133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14133.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 70517
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.57544582866895,
-      "end_time": 21.600519499987524,
-      "duration": 6.025073671318573,
-      "start_frame": 249207,
-      "duration_frames": 96401,
-      "overlap": false,
-      "utterance_id": "5570-73848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73848.flac |",
-      "real_speaker_id": "5570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.12660613359774,
-      "end_time": 28.76364221410313,
-      "duration": 6.637036080505389,
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-      "duration_frames": 106192,
-      "overlap": false,
-      "utterance_id": "5339-14134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.74854828643007,
-      "end_time": 32.0,
-      "duration": 2.2514517135699315,
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-      "duration_frames": 36023,
-      "overlap": false,
-      "utterance_id": "3547-156969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-156969.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
-      "duration": 2.2869858073888256,
-      "start_time": 22.362525657817407
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_041210.json b/conversations/conv_041210.json
deleted file mode 100644
index 335cd726afa9a6f09f267d14c307da9a9a383638..0000000000000000000000000000000000000000
--- a/conversations/conv_041210.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.665145700939237,
-      "duration": 4.665145700939237,
-      "start_frame": 0,
-      "duration_frames": 74642,
-      "overlap": false,
-      "utterance_id": "2946-163375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2946-163375.flac |",
-      "real_speaker_id": "2946",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.866049156814616,
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-      "duration": 6.440858062159958,
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-      "duration_frames": 103053,
-      "overlap": false,
-      "utterance_id": "5561-41616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-41616.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.807230468798162,
-      "end_time": 15.28231318982612,
-      "duration": 4.475082721027957,
-      "start_frame": 172915,
-      "duration_frames": 71601,
-      "overlap": true,
-      "utterance_id": "688-46588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-46588.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.607509364173385,
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-      "duration": 5.844518040380178,
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-      "overlap": false,
-      "utterance_id": "688-15446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-15446.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.911215321941548,
-      "end_time": 27.07463033554908,
-      "duration": 4.163415013607535,
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-      "duration_frames": 66614,
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-      "utterance_id": "5561-41615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-41615.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.6830271105727,
-      "end_time": 32.0,
-      "duration": 4.316972889427301,
-      "start_frame": 442928,
-      "duration_frames": 69071,
-      "overlap": false,
-      "utterance_id": "688-15446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-15446.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 93512
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2946/cough/0067.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5561/laugh/0083.wav",
-      "duration": 1.4,
-      "start_time": 3.259633525932551,
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-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5561/cough/0126.wav",
-      "duration": 0.7529386812608536,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/688/laugh/0105.wav",
-      "duration": 1.28,
-      "start_time": 29.612168120438238,
-      "speaker_id": "688"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041216.json b/conversations/conv_041216.json
deleted file mode 100644
index 71bff5ebb58c0105b383d3045cc2aacf892b6b8c..0000000000000000000000000000000000000000
--- a/conversations/conv_041216.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.546164283319584,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.510756900925384,
-      "duration": 3.510756900925384,
-      "start_frame": 0,
-      "duration_frames": 56172,
-      "overlap": false,
-      "utterance_id": "3885-12149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-12149.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.8954350316386686,
-      "end_time": 8.842285925320557,
-      "duration": 3.9468508936818885,
-      "start_frame": 78326,
-      "duration_frames": 63149,
-      "overlap": false,
-      "utterance_id": "4872-20425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.690239420054091,
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-      "duration_frames": 81514,
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-      "utterance_id": "5968-61356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-61356.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "3885-1193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-1193.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "4872",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.179434003063427,
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-      "duration": 0.6479075661538536,
-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4872/laugh/0096.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041217.json b/conversations/conv_041217.json
deleted file mode 100644
index d2254416f282687c3b7553060e2f17fb0e82187d..0000000000000000000000000000000000000000
--- a/conversations/conv_041217.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.324603473004849,
-      "duration": 6.324603473004849,
-      "start_frame": 0,
-      "duration_frames": 101193,
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\ No newline at end of file
diff --git a/conversations/conv_041221.json b/conversations/conv_041221.json
deleted file mode 100644
index c009838dd55cc2dd661c7f1d9ddd8077dfa0fc66..0000000000000000000000000000000000000000
--- a/conversations/conv_041221.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-77779.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-77779.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.487441910317607,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 188050
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4064-77779.flac |",
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-      "position_frames": 158485
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\ No newline at end of file
diff --git a/conversations/conv_041237.json b/conversations/conv_041237.json
deleted file mode 100644
index d2b6dddf5e795765083468dace85ca171e21853f..0000000000000000000000000000000000000000
--- a/conversations/conv_041237.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "4667",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_041240.json b/conversations/conv_041240.json
deleted file mode 100644
index 134df72decd772f682fc340d5e7cf6da6879d059..0000000000000000000000000000000000000000
--- a/conversations/conv_041240.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1187-136238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136238.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-123882.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "711",
-      "position_frames": 0
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-    {
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-      "utterance_id": "711-187466",
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-      "real_speaker_id": "711",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_041247.json b/conversations/conv_041247.json
deleted file mode 100644
index 4b32419790b02777ac0010ff6e1695ebfd11a132..0000000000000000000000000000000000000000
--- a/conversations/conv_041247.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.355113946847098,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2167-149880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149880.flac |",
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-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_041251.json b/conversations/conv_041251.json
deleted file mode 100644
index dd4a252df4dad0888a140afda6b96a18ac93a1dc..0000000000000000000000000000000000000000
--- a/conversations/conv_041251.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_041256.json b/conversations/conv_041256.json
deleted file mode 100644
index 84663e89bb321f4a9a786b6dfa0fabdca3841e2a..0000000000000000000000000000000000000000
--- a/conversations/conv_041256.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_041260.json b/conversations/conv_041260.json
deleted file mode 100644
index 712135b0785d96a50293aed9400e961d9f2743fa..0000000000000000000000000000000000000000
--- a/conversations/conv_041260.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7079/laugh/0028.wav",
-      "duration": 1.24,
-      "start_time": 30.617927731722546,
-      "speaker_id": "7079"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7079/cough/0097.wav",
-      "duration": 0.8519715889935324,
-      "start_time": 31.148028411006468,
-      "speaker_id": "7079"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041276.json b/conversations/conv_041276.json
deleted file mode 100644
index e39b153547b005da4b6585aa50999109105e74ea..0000000000000000000000000000000000000000
--- a/conversations/conv_041276.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.6073497805002,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.887155850923484,
-      "duration": 6.887155850923484,
-      "start_frame": 0,
-      "duration_frames": 110194,
-      "overlap": false,
-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.613416305358561,
-      "end_time": 13.521803665689019,
-      "duration": 5.908387360330458,
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-      "overlap": false,
-      "utterance_id": "3864-185126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185126.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.163625534181925,
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-      "duration": 4.574644883132182,
-      "start_frame": 226618,
-      "duration_frames": 73194,
-      "overlap": true,
-      "utterance_id": "6652-70974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70974.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.781769370882134,
-      "end_time": 24.84349091498533,
-      "duration": 5.061721544103196,
-      "start_frame": 316508,
-      "duration_frames": 80987,
-      "overlap": false,
-      "utterance_id": "3864-185125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185125.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.188567583183865,
-      "end_time": 30.36175365251423,
-      "duration": 5.173186069330368,
-      "start_frame": 403017,
-      "duration_frames": 82770,
-      "overlap": false,
-      "utterance_id": "3864-185126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185126.flac |",
-      "real_speaker_id": "3864",
-      "position_frames": 94534
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.979280812354435,
-      "end_time": 31.6073497805002,
-      "duration": 0.6280689681457652,
-      "start_frame": 495668,
-      "duration_frames": 10049,
-      "overlap": true,
-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 110194
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
-      "duration": 23.183163441058866,
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
-      "duration": 0.3160770975056689,
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6652/cough/0071.wav",
-      "duration": 0.92,
-      "start_time": 17.213356874260217,
-      "speaker_id": "6652"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3864/laugh/0072.wav",
-      "duration": 1.3714146979617152,
-      "start_time": 23.582089043434483,
-      "speaker_id": "3864"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6652/laugh/0113.wav",
-      "duration": 1.1874122179195168,
-      "start_time": 30.812587782080485,
-      "speaker_id": "6652"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6652/cough/0102.wav",
-      "duration": 1.02,
-      "start_time": 30.98,
-      "speaker_id": "6652"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041282.json b/conversations/conv_041282.json
deleted file mode 100644
index 42ca2a6ca8a3037a14f3eb44003878e801f11474..0000000000000000000000000000000000000000
--- a/conversations/conv_041282.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "4848-29108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-29108.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.797642676166719,
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-      "overlap": false,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 100887
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 21.66912385172925,
-      "end_time": 27.807153051570815,
-      "duration": 6.138029199841565,
-      "start_frame": 346705,
-      "duration_frames": 98208,
-      "overlap": true,
-      "utterance_id": "4848-101836",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-101836.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 28.862318392705358,
-      "end_time": 32.0,
-      "duration": 3.137681607294642,
-      "start_frame": 461797,
-      "duration_frames": 50202,
-      "overlap": false,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 209086
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7096/laugh/0074.wav",
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-      "start_time": 6.363485061566412,
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-    {
-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7096/laugh/0007.wav",
-      "duration": 1.28,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7096/laugh/0071.wav",
-      "duration": 1.24,
-      "start_time": 27.598263677959192,
-      "speaker_id": "7096"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041283.json b/conversations/conv_041283.json
deleted file mode 100644
index cbac866aa6907fcdeb8387b5d1a9a38c3ccb181e..0000000000000000000000000000000000000000
--- a/conversations/conv_041283.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "831-130739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
-      "real_speaker_id": "831",
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-132091.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
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-    {
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-      "real_speaker_id": "7001",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "831-130739",
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-      "real_speaker_id": "831",
-      "position_frames": 171125
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041295.json b/conversations/conv_041295.json
deleted file mode 100644
index 5704d60866d4f4bc5f05655859f0e563ff21cebd..0000000000000000000000000000000000000000
--- a/conversations/conv_041295.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.66510816699796,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4358-20034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-20034.flac |",
-      "real_speaker_id": "4358",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3009-10328",
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-  "foreground_events": [
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-      "speaker_id": "3587"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "3587"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3009/laugh/0123.wav",
-      "duration": 1.0480774559963113,
-      "start_time": 27.150430897966125,
-      "speaker_id": "3009"
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-      "event_class": "cough",
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-      "speaker_id": "3009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041299.json b/conversations/conv_041299.json
deleted file mode 100644
index d5bf1b084f7a99cc5028c6958565fedc42ed0da1..0000000000000000000000000000000000000000
--- a/conversations/conv_041299.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.3287848091820416,
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-      "overlap": false,
-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.7374509394143867,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-28619.flac |",
-      "real_speaker_id": "4936",
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-      "start_time": 8.771069272851832,
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-      "utterance_id": "4936-65528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4936-65528.flac |",
-      "real_speaker_id": "4936",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 15.597667950648265,
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-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 53260
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.420670599751197,
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-      "utterance_id": "6836-76549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-76549.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.32250045788715,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 134473
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_041302.json b/conversations/conv_041302.json
deleted file mode 100644
index f3abcf7c725f3159850a5df49a82f75a9d8c0634..0000000000000000000000000000000000000000
--- a/conversations/conv_041302.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281514.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.447296908627134,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281514.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 111258
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281518.flac |",
-      "real_speaker_id": "8172",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041305.json b/conversations/conv_041305.json
deleted file mode 100644
index 8b598223927d633031bb584810af92c4527c2356..0000000000000000000000000000000000000000
--- a/conversations/conv_041305.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4868.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_041309.json b/conversations/conv_041309.json
deleted file mode 100644
index be25189079031fa8f92bbd2bf2097a73ad692ae0..0000000000000000000000000000000000000000
--- a/conversations/conv_041309.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1913-143521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-143521.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-124595.flac |",
-      "real_speaker_id": "2285",
-      "position_frames": 69542
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "start_time": 18.580858552755156,
-      "speaker_id": "2285"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041313.json b/conversations/conv_041313.json
deleted file mode 100644
index bf1eb271dfe7c58e28456c9f7da636b35ea6d29c..0000000000000000000000000000000000000000
--- a/conversations/conv_041313.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7932-278228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7932-278228.flac |",
-      "real_speaker_id": "7932",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.442000393241991,
-      "end_time": 10.170328820913756,
-      "duration": 4.728328427671765,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "7932-278228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7932-278228.flac |",
-      "real_speaker_id": "7932",
-      "position_frames": 89498
-    },
-    {
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-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.055265362988862,
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-      "overlap": false,
-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 75653
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.739793685547752,
-      "end_time": 32.0,
-      "duration": 4.2602063144522475,
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-      "duration_frames": 68163,
-      "overlap": false,
-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 77897
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "speaker_id": "569"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041314.json b/conversations/conv_041314.json
deleted file mode 100644
index fcbf5e60e2f1dbf3679bcb6bd407fd374b552faf..0000000000000000000000000000000000000000
--- a/conversations/conv_041314.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 5.331546607929738,
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8770",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "3079",
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-      "real_speaker_id": "7090",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.05009933409277,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041325.json b/conversations/conv_041325.json
deleted file mode 100644
index 4a1b8484216f8763e7a77ea5bc4f8ed66549bee4..0000000000000000000000000000000000000000
--- a/conversations/conv_041325.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2051-153962.flac |",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1152/cough/0105.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041328.json b/conversations/conv_041328.json
deleted file mode 100644
index 29048c102958a8e34d3661c43c8217905aa9d092..0000000000000000000000000000000000000000
--- a/conversations/conv_041328.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7780-274562",
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-    {
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-      "real_speaker_id": "6848",
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\ No newline at end of file
diff --git a/conversations/conv_041329.json b/conversations/conv_041329.json
deleted file mode 100644
index e94f89e3e582ea236cd3d8667b284b7e60ec4fe4..0000000000000000000000000000000000000000
--- a/conversations/conv_041329.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130225.flac |",
-      "real_speaker_id": "272",
-      "position_frames": 90366
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041333.json b/conversations/conv_041333.json
deleted file mode 100644
index 1c7257ab201e09c49a572e30b46952c8c0db4fce..0000000000000000000000000000000000000000
--- a/conversations/conv_041333.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041343.json b/conversations/conv_041343.json
deleted file mode 100644
index 7db0a7941daa1bc59dabf8d12910ef8c2b434aba..0000000000000000000000000000000000000000
--- a/conversations/conv_041343.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041344.json b/conversations/conv_041344.json
deleted file mode 100644
index 2c37616a560dee490528c521e26a518c4cda6985..0000000000000000000000000000000000000000
--- a/conversations/conv_041344.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-      "utterance_id": "5199-36965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-36965.flac |",
-      "real_speaker_id": "5199",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.72511457112934,
-      "end_time": 26.897861433733766,
-      "duration": 5.172746862604428,
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 160972
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-36965.flac |",
-      "real_speaker_id": "5199",
-      "position_frames": 48732
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "Dog",
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-      "event_class": "Dog",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2625/laugh/0073.wav",
-      "duration": 0.8559258725609595,
-      "start_time": 5.599271877024195,
-      "speaker_id": "2625"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_041348.json b/conversations/conv_041348.json
deleted file mode 100644
index 5851c53e35caccf9794d38fd235d469a0d3e9a7e..0000000000000000000000000000000000000000
--- a/conversations/conv_041348.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.340094890429206,
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-      "overlap": false,
-      "utterance_id": "459-127521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-127521.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.261118854138388,
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-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 0
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-      "duration_frames": 62468,
-      "overlap": true,
-      "utterance_id": "459-127521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-127521.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 85441
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.060088546570594,
-      "end_time": 21.778705454480487,
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-      "overlap": true,
-      "utterance_id": "459-123443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-123443.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.33965249552166,
-      "end_time": 28.920953244305135,
-      "duration": 5.581300748783476,
-      "start_frame": 373434,
-      "duration_frames": 89300,
-      "overlap": false,
-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 107684
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.132639078717375,
-      "end_time": 32.0,
-      "duration": 2.867360921282625,
-      "start_frame": 466122,
-      "duration_frames": 45877,
-      "overlap": false,
-      "utterance_id": "5810-8689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8689.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "199"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041352.json b/conversations/conv_041352.json
deleted file mode 100644
index 2c1831f3d20137832d2760afaa50fba7766948c8..0000000000000000000000000000000000000000
--- a/conversations/conv_041352.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2582-155973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155973.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.00748310553779,
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-      "utterance_id": "4492-8907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8907.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
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-      "real_speaker_id": "2582",
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-    {
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-      "speaker_id": 1,
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-      "real_speaker_id": "8329",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155972.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 90667
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8329-279775.flac |",
-      "real_speaker_id": "8329",
-      "position_frames": 67883
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.70998259726484,
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-      "utterance_id": "2582-155973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155973.flac |",
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-  "paralinguistic_events": [
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-      "start_time": 26.10020549076784,
-      "speaker_id": "2582"
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-    {
-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2582/laugh/0077.wav",
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-      "speaker_id": "2582"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041355.json b/conversations/conv_041355.json
deleted file mode 100644
index 187e273e4ae7ce7e222e14535eb1b5f4f7dd3c45..0000000000000000000000000000000000000000
--- a/conversations/conv_041355.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 4.644972720390699,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "644-162691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/644-162691.flac |",
-      "real_speaker_id": "644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.363517961005573,
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-      "overlap": true,
-      "utterance_id": "5854-50960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5854-50960.flac |",
-      "real_speaker_id": "5854",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "644-162691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/644-162691.flac |",
-      "real_speaker_id": "644",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11549.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "5854",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "end_time": 32.0,
-      "duration": 3.031176442490093,
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-      "overlap": false,
-      "utterance_id": "644-162691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/644-162691.flac |",
-      "real_speaker_id": "644",
-      "position_frames": 149068
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5854/laugh/0007.wav",
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-      "speaker_id": "5854"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/644/laugh/0066.wav",
-      "duration": 0.98,
-      "start_time": 12.963189015889682,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4160/laugh/0068.wav",
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-      "start_time": 16.218290877935214,
-      "speaker_id": "4160"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/644/cough/0034.wav",
-      "duration": 1.0632757508436987,
-      "start_time": 27.823373837023404,
-      "speaker_id": "644"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041364.json b/conversations/conv_041364.json
deleted file mode 100644
index c523fbe6a802e9f9c220a7d426b33641ad241051..0000000000000000000000000000000000000000
--- a/conversations/conv_041364.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2136-5143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5143.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "7113-86041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
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-      "real_speaker_id": "7113",
-      "position_frames": 95100
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041368.json b/conversations/conv_041368.json
deleted file mode 100644
index a3840efa3ac9beaceb3587b8470fc16c06c710fc..0000000000000000000000000000000000000000
--- a/conversations/conv_041368.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1553-140047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140047.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153300.flac |",
-      "real_speaker_id": "3928",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11535.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11535.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 78882
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140047.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 95361
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.62465885959055,
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-      "duration": 1.37534114040945,
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-      "utterance_id": "4110-11528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11528.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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\ No newline at end of file
diff --git a/conversations/conv_041372.json b/conversations/conv_041372.json
deleted file mode 100644
index bddd40d08c67fd6342436bfc6798b0f60c8b749b..0000000000000000000000000000000000000000
--- a/conversations/conv_041372.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3006-5697.flac |",
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-      "real_speaker_id": "3006",
-      "position_frames": 0
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041387.json b/conversations/conv_041387.json
deleted file mode 100644
index b7c1ccd70fcfde7c6f07b557cf5646ec56abfbad..0000000000000000000000000000000000000000
--- a/conversations/conv_041387.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "7258",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_041390.json b/conversations/conv_041390.json
deleted file mode 100644
index ad28528b60a9c473b01707ad3a707b6771e9e996..0000000000000000000000000000000000000000
--- a/conversations/conv_041390.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6330-62851",
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-    {
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-      "real_speaker_id": "5044",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62851.flac |",
-      "real_speaker_id": "6330",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30592.flac |",
-      "real_speaker_id": "5044",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30602.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8040-260923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-260923.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
-      "duration": 22.972135340582035,
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_041391.json b/conversations/conv_041391.json
deleted file mode 100644
index 92d7f25e793268a4ed1af17a5aa9716e9a137f82..0000000000000000000000000000000000000000
--- a/conversations/conv_041391.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.9550159594151,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.2423328214241565,
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-      "overlap": false,
-      "utterance_id": "55-121069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.178429960641946,
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-      "duration": 4.7160531412258475,
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-      "utterance_id": "584-124227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124227.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.104004650378869,
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-      "duration": 6.482147937767238,
-      "start_frame": 193664,
-      "duration_frames": 103714,
-      "overlap": false,
-      "utterance_id": "4321-27567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-27567.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.755528519064068,
-      "end_time": 24.46496950385041,
-      "duration": 5.709440984786341,
-      "start_frame": 300088,
-      "duration_frames": 91351,
-      "overlap": true,
-      "utterance_id": "584-124227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/584-124227.flac |",
-      "real_speaker_id": "584",
-      "position_frames": 75456
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.21664163081868,
-      "end_time": 31.9550159594151,
-      "duration": 5.738374328596423,
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-      "duration_frames": 91813,
-      "overlap": false,
-      "utterance_id": "4321-15217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-15217.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
-      "duration": 1.0652834467120182,
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041406.json b/conversations/conv_041406.json
deleted file mode 100644
index 32bde6d98fb2fcf2c694c201f51a23eaa9d26658..0000000000000000000000000000000000000000
--- a/conversations/conv_041406.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7848-275169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275169.flac |",
-      "real_speaker_id": "7848",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 3.753620528829056,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129061.flac |",
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-      "utterance_id": "7848-275129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275129.flac |",
-      "real_speaker_id": "7848",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19685.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "669-129061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129061.flac |",
-      "real_speaker_id": "669",
-      "position_frames": 101290
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.204674637991562,
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-      "overlap": false,
-      "utterance_id": "5993-19685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19685.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 90721
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-  "background_events": [
-    {
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-      "duration": 1.76,
-      "start_time": 30.24,
-      "speaker_id": "5993"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041407.json b/conversations/conv_041407.json
deleted file mode 100644
index f054f8d13305965d9bc68d7e03d775a9500111a2..0000000000000000000000000000000000000000
--- a/conversations/conv_041407.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6269-66185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66185.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.6129945915698984,
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-      "duration_frames": 75253,
-      "overlap": true,
-      "utterance_id": "1265-135635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 0
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-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6269-66185",
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-      "real_speaker_id": "6269",
-      "position_frames": 55617
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1446",
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-  "background_events": [
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-    {
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 14.04774053822926,
-      "speaker_id": "6269"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041411.json b/conversations/conv_041411.json
deleted file mode 100644
index bb5889c62788edcc41834d4e6772b73b649c594a..0000000000000000000000000000000000000000
--- a/conversations/conv_041411.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "5750-100289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-100289.flac |",
-      "real_speaker_id": "5750",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_041427.json b/conversations/conv_041427.json
deleted file mode 100644
index 2717d5744f84e8869c7f3abba07fd3e2ee5e6d57..0000000000000000000000000000000000000000
--- a/conversations/conv_041427.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143485.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-88089.flac |",
-      "real_speaker_id": "6406",
-      "position_frames": 101283
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-      "utterance_id": "6406-88089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-88089.flac |",
-      "real_speaker_id": "6406",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143485.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_041431.json b/conversations/conv_041431.json
deleted file mode 100644
index ae5b27c842e12f9a83120cad35734f914b238a05..0000000000000000000000000000000000000000
--- a/conversations/conv_041431.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "segment_id": "seg0004",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041441.json b/conversations/conv_041441.json
deleted file mode 100644
index fe02d0f82891b5bb4c7acd5a08664d644395a7ed..0000000000000000000000000000000000000000
--- a/conversations/conv_041441.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "5980-22680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 0
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-    {
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-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041446.json b/conversations/conv_041446.json
deleted file mode 100644
index ba2a26401b3a9d059c5ae16699cb83420785e5dc..0000000000000000000000000000000000000000
--- a/conversations/conv_041446.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "204-162375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-162375.flac |",
-      "real_speaker_id": "204",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 102886
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-      "utterance_id": "204-148920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-148920.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "204"
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-}
\ No newline at end of file
diff --git a/conversations/conv_041450.json b/conversations/conv_041450.json
deleted file mode 100644
index 285d4e95498b9b710c89d1c270e6c2e4f28b5f8a..0000000000000000000000000000000000000000
--- a/conversations/conv_041450.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 65524
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-  "background_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_041451.json b/conversations/conv_041451.json
deleted file mode 100644
index 4e10db874832822a2db3eb5e3fed11af43cb3200..0000000000000000000000000000000000000000
--- a/conversations/conv_041451.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041466.json b/conversations/conv_041466.json
deleted file mode 100644
index 737ecf1983f9feef8921dba13a661c3490d2b23a..0000000000000000000000000000000000000000
--- a/conversations/conv_041466.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "duration": 0.5369329859931269,
-      "start_time": 27.32132746634309,
-      "speaker_id": "6895"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041470.json b/conversations/conv_041470.json
deleted file mode 100644
index ebb3bbdbf8cf8ca37274f933b120b8a95272d5f1..0000000000000000000000000000000000000000
--- a/conversations/conv_041470.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.6741703447875285,
-      "duration": 6.6741703447875285,
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-      "duration_frames": 106786,
-      "overlap": false,
-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.961321834421257,
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-      "duration": 6.3492471227615015,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3020-888.flac |",
-      "real_speaker_id": "3020",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 106786
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 22.57435495295075,
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-      "duration": 3.5013866357452237,
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-      "utterance_id": "3835-178029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178029.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.93550006780492,
-      "end_time": 30.981684031031456,
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-      "duration_frames": 64738,
-      "overlap": false,
-      "utterance_id": "2256-137627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137627.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.453090073341947,
-      "end_time": 32.0,
-      "duration": 0.5469099266580528,
-      "start_frame": 503249,
-      "duration_frames": 8750,
-      "overlap": false,
-      "utterance_id": "3835-178029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178029.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 56022
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3020/laugh/0102.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3835/laugh/0057.wav",
-      "duration": 0.6463684285022699,
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-      "duration": 0.5267096406216244,
-      "start_time": 30.711379891709015,
-      "speaker_id": "3835"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041482.json b/conversations/conv_041482.json
deleted file mode 100644
index 5688b922f6151d6dd736c88761b79004ab4daa01..0000000000000000000000000000000000000000
--- a/conversations/conv_041482.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.875220809668296,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1313-136054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-136054.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
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-      "real_speaker_id": "1313",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "92-204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-204.flac |",
-      "real_speaker_id": "92",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.823101289242945,
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-      "duration": 5.352233015875656,
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-      "overlap": false,
-      "utterance_id": "778-126734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
-      "real_speaker_id": "778",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.431253347417027,
-      "end_time": 31.875220809668296,
-      "duration": 5.443967462251268,
-      "start_frame": 422900,
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-      "overlap": false,
-      "utterance_id": "1313-136054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-136054.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 88663
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1313/laugh/0027.wav",
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-      "speaker_id": "1313"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1313/cough/0079.wav",
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-    {
-      "event_class": "laugh",
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-      "start_time": 13.924977181167852,
-      "speaker_id": "92"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041485.json b/conversations/conv_041485.json
deleted file mode 100644
index dc1bc0b1cd5aa1d63fd6c7e7a550606e68c386b7..0000000000000000000000000000000000000000
--- a/conversations/conv_041485.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.327232512025923,
-  "num_speakers": 3,
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-      "overlap": false,
-      "utterance_id": "3357-28380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3357-28380.flac |",
-      "real_speaker_id": "3357",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
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-      "real_speaker_id": "8419",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  ],
-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041489.json b/conversations/conv_041489.json
deleted file mode 100644
index 06b6d66fe93df1226e6e30a38d223e87c0898557..0000000000000000000000000000000000000000
--- a/conversations/conv_041489.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "3072-155948",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
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-      "position_frames": 153115
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-  "foreground_events": [
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-      "start_time": 17.80588040731943,
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-      "event_class": "cough",
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-      "speaker_id": "7874"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041493.json b/conversations/conv_041493.json
deleted file mode 100644
index da62fcd02d91842eb6efe2ad8e450f96687ded6c..0000000000000000000000000000000000000000
--- a/conversations/conv_041493.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.751878374947342,
-  "num_speakers": 3,
-  "overlap_rate": 0.6,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.153164335223835,
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-      "utterance_id": "4407-13145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13145.flac |",
-      "real_speaker_id": "4407",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.457648228649199,
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-      "utterance_id": "1970-26100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-26100.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.419484291318001,
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-      "overlap": true,
-      "utterance_id": "4407-13145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4407-13145.flac |",
-      "real_speaker_id": "4407",
-      "position_frames": 82450
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.91748936529427,
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-      "duration_frames": 92963,
-      "overlap": true,
-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.031369431707585,
-      "end_time": 30.751878374947342,
-      "duration": 6.720508943239758,
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-      "overlap": false,
-      "utterance_id": "1970-10594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-10594.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-      "event_class": "laugh",
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-      "duration": 0.42210676901777483,
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-      "speaker_id": "1970"
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-}
\ No newline at end of file
diff --git a/conversations/conv_041494.json b/conversations/conv_041494.json
deleted file mode 100644
index d53eca4581fddae1410e7eb018b729231ba138ab..0000000000000000000000000000000000000000
--- a/conversations/conv_041494.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.358592996582196,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4948-28016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28016.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
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-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28015.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
-      "position_frames": 88859
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4948-28002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28002.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "speaker_id": "4948"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041503.json b/conversations/conv_041503.json
deleted file mode 100644
index 50adf666a5d12d264aa4d4f0d1ca32d56d594ab2..0000000000000000000000000000000000000000
--- a/conversations/conv_041503.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1154-129975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129975.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-120275.flac |",
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-      "utterance_id": "1154-134887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134887.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "7177-258965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258965.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-  ],
-  "background_events": [
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-      "start_time": 11.088449122841174,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041504.json b/conversations/conv_041504.json
deleted file mode 100644
index b282f756ed150f5aaeabef7f7995638250e8881c..0000000000000000000000000000000000000000
--- a/conversations/conv_041504.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.779722353967344,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3389-130127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-130127.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-13248.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 96463
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
-      "duration": 4.9640977436408305,
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-      "event_class": "Dog",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_041514.json b/conversations/conv_041514.json
deleted file mode 100644
index 61d2abd2123b4a21365c3ab57bbf18ad6f0b525a..0000000000000000000000000000000000000000
--- a/conversations/conv_041514.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.775112594809848,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8152-282985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-282985.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.940898256203545,
-      "end_time": 10.192334444155914,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290350.flac |",
-      "real_speaker_id": "8575",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.912744953806449,
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-      "utterance_id": "8152-282985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-282985.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 92690
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.559817921184116,
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-      "utterance_id": "2740-162051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-162051.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.0191457854267,
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-      "utterance_id": "8152-258993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-258993.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "8575-290350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290350.flac |",
-      "real_speaker_id": "8575",
-      "position_frames": 68022
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-  "foreground_events": [
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_041515.json b/conversations/conv_041515.json
deleted file mode 100644
index 7ee35ff68d0eed7c09ee96537a3207808580af95..0000000000000000000000000000000000000000
--- a/conversations/conv_041515.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-66279.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 58108
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6211-62844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-62844.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041519.json b/conversations/conv_041519.json
deleted file mode 100644
index 89f12b9ef59c9c706533e645652f8144636d744c..0000000000000000000000000000000000000000
--- a/conversations/conv_041519.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-114469.flac |",
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-    {
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041523.json b/conversations/conv_041523.json
deleted file mode 100644
index fc9a5fc3b894a567b5cf4ec2b970d06b2f8aa786..0000000000000000000000000000000000000000
--- a/conversations/conv_041523.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "3268-59225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3268-59225.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_041528.json b/conversations/conv_041528.json
deleted file mode 100644
index 100cdd38a9b613338226d3527aedb5f043dfdfff..0000000000000000000000000000000000000000
--- a/conversations/conv_041528.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.54452239926851,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "1679",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-124221.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.8719795504171,
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-      "utterance_id": "3969-175415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-175415.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_041535.json b/conversations/conv_041535.json
deleted file mode 100644
index fba903d40f6a67f816e8df1ef71fee9dce5d96d8..0000000000000000000000000000000000000000
--- a/conversations/conv_041535.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7357-94126.flac |",
-      "real_speaker_id": "7357",
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-      "real_speaker_id": "7357",
-      "position_frames": 210136
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 113676
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "speaker_id": "1363"
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-}
\ No newline at end of file
diff --git a/conversations/conv_041539.json b/conversations/conv_041539.json
deleted file mode 100644
index 40a25f49b20cd1d61261debdea7672d434190f9a..0000000000000000000000000000000000000000
--- a/conversations/conv_041539.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286257.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
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-      "position_frames": 101467
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8710-295447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8710-295447.flac |",
-      "real_speaker_id": "8710",
-      "position_frames": 193773
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041542.json b/conversations/conv_041542.json
deleted file mode 100644
index e3abc30a419d242dec66dd0ac6a86d713978110d..0000000000000000000000000000000000000000
--- a/conversations/conv_041542.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_041554.json b/conversations/conv_041554.json
deleted file mode 100644
index a1b963886ac111b4bc3bb15433f958c3e7784a0b..0000000000000000000000000000000000000000
--- a/conversations/conv_041554.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "6555",
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-      "position_frames": 0
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041558.json b/conversations/conv_041558.json
deleted file mode 100644
index 73512179b54ddc55c5286644f743cbca76657554..0000000000000000000000000000000000000000
--- a/conversations/conv_041558.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "6145-54683",
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-      "speaker_id": "6145"
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-}
\ No newline at end of file
diff --git a/conversations/conv_041562.json b/conversations/conv_041562.json
deleted file mode 100644
index 75aa8829bd0c29e1774c27efe6151b6d4992ceb4..0000000000000000000000000000000000000000
--- a/conversations/conv_041562.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-70995.flac |",
-      "real_speaker_id": "6625",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041569.json b/conversations/conv_041569.json
deleted file mode 100644
index 36dbc2cbc88d20b731d5c9d8208d2496ae5ea7b7..0000000000000000000000000000000000000000
--- a/conversations/conv_041569.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6084-2159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-91994.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041574.json b/conversations/conv_041574.json
deleted file mode 100644
index e08651478cb3eef303259843e2a304964750ed56..0000000000000000000000000000000000000000
--- a/conversations/conv_041574.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.13835412183224,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1633-141580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-141580.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.989596327409671,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-141584.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "196-122159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122159.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.180622631743724,
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-      "duration": 4.308138438868661,
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-      "utterance_id": "5424-296464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-296464.flac |",
-      "real_speaker_id": "5424",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.70129355050838,
-      "end_time": 31.13835412183224,
-      "duration": 6.437060571323858,
-      "start_frame": 395220,
-      "duration_frames": 102992,
-      "overlap": true,
-      "utterance_id": "196-122159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122159.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 89850
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 2.1306956214329973,
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041578.json b/conversations/conv_041578.json
deleted file mode 100644
index 2bc68585de14a3978bade0a8670622e3be92c39d..0000000000000000000000000000000000000000
--- a/conversations/conv_041578.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5719-41217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-41217.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5719-233361.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4703-59231.flac |",
-      "real_speaker_id": "4703",
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-      "utterance_id": "7561-258992",
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-      "real_speaker_id": "7561",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.498073373951915,
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-      "position_frames": 60494
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-  "foreground_events": [
-    {
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-      "duration": 1.12,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4703/laugh/0000.wav",
-      "duration": 1.02,
-      "start_time": 18.67423998459332,
-      "speaker_id": "4703"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041581.json b/conversations/conv_041581.json
deleted file mode 100644
index e30b5542d2b4f7af52051e6ce7bde306f4f0fb4d..0000000000000000000000000000000000000000
--- a/conversations/conv_041581.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "517-121739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121739.flac |",
-      "real_speaker_id": "517",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 7.771321765515909,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
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-      "utterance_id": "3357-28375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3357-28375.flac |",
-      "real_speaker_id": "3357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 82181
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.962569564119683,
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-      "real_speaker_id": "517",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3357-28380.flac |",
-      "real_speaker_id": "3357",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_041586.json b/conversations/conv_041586.json
deleted file mode 100644
index f5424e8b451f41eda154d9ea771886bdd21bd68a..0000000000000000000000000000000000000000
--- a/conversations/conv_041586.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "979-128669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/979-128669.flac |",
-      "real_speaker_id": "979",
-      "position_frames": 0
-    },
-    {
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\ No newline at end of file
diff --git a/conversations/conv_041590.json b/conversations/conv_041590.json
deleted file mode 100644
index 00925f0add348782bbde0a5cfcb62106a58cb172..0000000000000000000000000000000000000000
--- a/conversations/conv_041590.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.750438922374435,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-169642.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3245-6194",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-6194.flac |",
-      "real_speaker_id": "3245",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_041597.json b/conversations/conv_041597.json
deleted file mode 100644
index 7e33379a68d387afb78eb82519cab7f99e10a6cc..0000000000000000000000000000000000000000
--- a/conversations/conv_041597.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
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-      "real_speaker_id": "7837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 28.12738969742205,
-      "end_time": 32.0,
-      "duration": 3.87261030257795,
-      "start_frame": 450038,
-      "duration_frames": 61961,
-      "overlap": false,
-      "utterance_id": "1448-135894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1448-135894.flac |",
-      "real_speaker_id": "1448",
-      "position_frames": 93637
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 26.81130538662541,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041601.json b/conversations/conv_041601.json
deleted file mode 100644
index f57c028c9151d34067201e177db956fec06473ed..0000000000000000000000000000000000000000
--- a/conversations/conv_041601.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.3568772500187665,
-      "end_time": 9.39714883837997,
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-      "utterance_id": "231-127936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-127936.flac |",
-      "real_speaker_id": "231",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 56453,
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-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 94391
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.111446413089418,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-127936.flac |",
-      "real_speaker_id": "231",
-      "position_frames": 48644
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.55821989797221,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 150844
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1259-137770",
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-      "real_speaker_id": "1259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.023556797887643,
-      "end_time": 32.0,
-      "duration": 0.9764432021123568,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-119253.flac |",
-      "real_speaker_id": "231",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/151/laugh/0060.wav",
-      "duration": 1.24,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/231/laugh/0063.wav",
-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "231"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041606.json b/conversations/conv_041606.json
deleted file mode 100644
index 87ea99b298487120606f1059fd0d6a9e991f043e..0000000000000000000000000000000000000000
--- a/conversations/conv_041606.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_041610.json b/conversations/conv_041610.json
deleted file mode 100644
index ebbdd91b1bbd38d80236beae66d8fa65913d335f..0000000000000000000000000000000000000000
--- a/conversations/conv_041610.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_041617.json b/conversations/conv_041617.json
deleted file mode 100644
index 9798c873d30e49d3436b13c2751066a3f95f8652..0000000000000000000000000000000000000000
--- a/conversations/conv_041617.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041626.json b/conversations/conv_041626.json
deleted file mode 100644
index be06b0099af16dee5e7c54f00a9db350da8e33eb..0000000000000000000000000000000000000000
--- a/conversations/conv_041626.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.013153054375202,
-  "num_speakers": 3,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5077/cough/0104.wav",
-      "duration": 0.8169474390685778,
-      "start_time": 9.293583750856891,
-      "speaker_id": "5077"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1779/laugh/0000.wav",
-      "duration": 0.6512061951598778,
-      "start_time": 27.42225573691685,
-      "speaker_id": "1779"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1779/cough/0066.wav",
-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "1779"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041630.json b/conversations/conv_041630.json
deleted file mode 100644
index 75fd6e2d66fa2d108e5f4b6d0f23e17cdcbc7075..0000000000000000000000000000000000000000
--- a/conversations/conv_041630.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.4834898863958537,
-      "duration": 3.4834898863958537,
-      "start_frame": 0,
-      "duration_frames": 55735,
-      "overlap": false,
-      "utterance_id": "7240-92202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92202.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.140653298372671,
-      "end_time": 9.425273362135668,
-      "duration": 6.284620063762997,
-      "start_frame": 50250,
-      "duration_frames": 100553,
-      "overlap": true,
-      "utterance_id": "5781-52135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.490080721217337,
-      "end_time": 15.42688070240414,
-      "duration": 4.936799981186803,
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-      "duration_frames": 78988,
-      "overlap": false,
-      "utterance_id": "5781-52134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52134.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.05174359413089,
-      "end_time": 19.730653344200512,
-      "duration": 4.67890975006962,
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-      "duration_frames": 74862,
-      "overlap": true,
-      "utterance_id": "6126-10992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6126-10992.flac |",
-      "real_speaker_id": "6126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.458000210735804,
-      "end_time": 26.00463183294897,
-      "duration": 4.546631622213166,
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-      "duration_frames": 72746,
-      "overlap": false,
-      "utterance_id": "5781-52135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 100553
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.80053397574121,
-      "end_time": 32.0,
-      "duration": 5.19946602425879,
-      "start_frame": 428808,
-      "duration_frames": 83191,
-      "overlap": false,
-      "utterance_id": "5781-52135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52135.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 173299
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
-      "duration": 0.9632426303854875,
-      "start_time": 18.66172316700062
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_10.wav",
-      "duration": 0.3551020408163265,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7240/laugh/0064.wav",
-      "duration": 1.16,
-      "start_time": 3.7418764105772793,
-      "speaker_id": "7240"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7240/cough/0094.wav",
-      "duration": 0.8160023770213598,
-      "start_time": 3.485926098661421,
-      "speaker_id": "7240"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5781/cough/0117.wav",
-      "duration": 0.301451979433892,
-      "start_time": 2.8270822445623778,
-      "speaker_id": "5781"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6126/laugh/0022.wav",
-      "duration": 1.584940108187929,
-      "start_time": 13.374032216463792,
-      "speaker_id": "6126"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041631.json b/conversations/conv_041631.json
deleted file mode 100644
index 3c2f60229655452f5923bb564592847395408f21..0000000000000000000000000000000000000000
--- a/conversations/conv_041631.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.558701259154886,
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-      "overlap": false,
-      "utterance_id": "1485-121385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-121385.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.217459242551026,
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-      "utterance_id": "1485-139314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-139314.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7190-90542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90542.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.227793542164038,
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-      "duration": 3.238303793839006,
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-      "duration_frames": 51812,
-      "overlap": true,
-      "utterance_id": "1485-121385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-121385.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 88939
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.559893356417593,
-      "end_time": 23.713849418989764,
-      "duration": 5.1539560625721705,
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-      "duration_frames": 82463,
-      "overlap": false,
-      "utterance_id": "7190-90542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90542.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 53828
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.30358614123602,
-      "end_time": 30.391783851890487,
-      "duration": 6.088197710654466,
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-      "duration_frames": 97411,
-      "overlap": false,
-      "utterance_id": "2473-157859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157859.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.19768536994666,
-      "end_time": 32.0,
-      "duration": 0.8023146300533384,
-      "start_frame": 499162,
-      "duration_frames": 12837,
-      "overlap": false,
-      "utterance_id": "1485-121385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-121385.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 140751
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 13.583028217242974
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
-      "duration": 3.293044800292436,
-      "start_time": 2.0223547453957207
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
-      "duration": 2.5541043083900226,
-      "start_time": 17.653000530895103
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1485/laugh/0106.wav",
-      "duration": 0.76,
-      "start_time": 0,
-      "speaker_id": "1485"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1485/cough/0102.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "1485"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1485/laugh/0067.wav",
-      "duration": 1.440257587670912,
-      "start_time": 6.948184163442271,
-      "speaker_id": "1485"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7190/laugh/0095.wav",
-      "duration": 1.24,
-      "start_time": 11.590734991432722,
-      "speaker_id": "7190"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1485/cough/0096.wav",
-      "duration": 1.2074112572505666,
-      "start_time": 30.792588742749434,
-      "speaker_id": "1485"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041640.json b/conversations/conv_041640.json
deleted file mode 100644
index 89c6a9e0e18de70cc6134e90c74f095148fbca17..0000000000000000000000000000000000000000
--- a/conversations/conv_041640.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.031761330282788,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5703-47212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.6872075795201114,
-      "end_time": 8.012317249871064,
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-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.562772369079351,
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-      "duration": 5.887437159807265,
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-      "duration_frames": 94198,
-      "overlap": false,
-      "utterance_id": "5703-47198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.189171458139862,
-      "end_time": 18.40256325382122,
-      "duration": 4.213391795681358,
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-      "duration_frames": 67414,
-      "overlap": true,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 69201
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.143721430007435,
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-      "duration_frames": 82994,
-      "overlap": true,
-      "utterance_id": "208-124554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-124554.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.380256740816968,
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-      "utterance_id": "5703-47198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 94198
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.54697249497,
-      "end_time": 32.0,
-      "duration": 1.4530275050300006,
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-      "duration_frames": 23248,
-      "overlap": false,
-      "utterance_id": "5703-47198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 173412
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/208/laugh/0006.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5703/laugh/0054.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.14,
-      "start_time": 29.382406130331905,
-      "speaker_id": "5703"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041646.json b/conversations/conv_041646.json
deleted file mode 100644
index bb9315d45ac1049f2c74f4d4400996f4f986633c..0000000000000000000000000000000000000000
--- a/conversations/conv_041646.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.125849246574578,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "1485-121385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-121385.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.659243734976332,
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-      "real_speaker_id": "8225",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-130093.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.606063893489488,
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-      "duration": 4.963455325094195,
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-      "utterance_id": "8225-274375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274375.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.32225815186261,
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-      "utterance_id": "398-130093",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-130093.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 104331
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "speaker_id": "398"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041647.json b/conversations/conv_041647.json
deleted file mode 100644
index 2ed47ef6c371fbef232404058158beaee8759d0b..0000000000000000000000000000000000000000
--- a/conversations/conv_041647.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.763201256295131,
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-      "overlap": false,
-      "utterance_id": "8425-287387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-287387.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.067721107640354,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187466.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-246962.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.8000188892071,
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-      "utterance_id": "7145-87280",
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-      "real_speaker_id": "7145",
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-      "speaker_id": 0,
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-      "utterance_id": "711-187466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187466.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 92406
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.212964716473607,
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-      "duration": 1.787035283526393,
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-      "utterance_id": "711-187466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187466.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 175197
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-      "start_time": 11.506373441391345,
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-      "event_class": "laugh",
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-      "speaker_id": "711"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041651.json b/conversations/conv_041651.json
deleted file mode 100644
index 56bf6be3619cd26b2237d735db2ea300c71d16c4..0000000000000000000000000000000000000000
--- a/conversations/conv_041651.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126671.flac |",
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-      "real_speaker_id": "153",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-43336.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "real_speaker_id": "153",
-      "position_frames": 54175
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/153/laugh/0014.wav",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041656.json b/conversations/conv_041656.json
deleted file mode 100644
index b6e0e53a2f3c12ffaceeb9a615ef88609f69e450..0000000000000000000000000000000000000000
--- a/conversations/conv_041656.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.604369283714178,
-  "num_speakers": 3,
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-      "start_time": 27.17525730836209,
-      "speaker_id": "8023"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_041667.json b/conversations/conv_041667.json
deleted file mode 100644
index f13462e440a2cb79adb4a119be913cd955cd0e31..0000000000000000000000000000000000000000
--- a/conversations/conv_041667.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5401-102526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-102526.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.4559512125324225,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "1347-164338",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-164338.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 67120
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-    {
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-      "speaker_id": 1,
-      "start_time": 18.512904142644107,
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-      "utterance_id": "5401-39515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39515.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.906093993550662,
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-      "overlap": false,
-      "utterance_id": "1347-135885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1347-135885.flac |",
-      "real_speaker_id": "1347",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.269493826890496,
-      "end_time": 32.0,
-      "duration": 2.7305061731095037,
-      "start_frame": 468311,
-      "duration_frames": 43688,
-      "overlap": false,
-      "utterance_id": "2674-155968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2674-155968.flac |",
-      "real_speaker_id": "2674",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 21.05861678004535,
-      "start_time": 2.155219494989996
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1347/laugh/0045.wav",
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-      "duration": 1.12,
-      "start_time": 12.115494680722472,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1347/laugh/0070.wav",
-      "duration": 1.1068684976341467,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1347/cough/0019.wav",
-      "duration": 0.6853270313271347,
-      "start_time": 25.584872591649155,
-      "speaker_id": "1347"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041671.json b/conversations/conv_041671.json
deleted file mode 100644
index 93aa04cb69f3ca5df7a8650d9c4429ff6c3312cc..0000000000000000000000000000000000000000
--- a/conversations/conv_041671.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.303859392687174,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19193.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
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-      "real_speaker_id": "7514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.855975565539453,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5514-19192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5514-19192.flac |",
-      "real_speaker_id": "5514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.907569924282228,
-      "end_time": 32.0,
-      "duration": 3.092430075717772,
-      "start_frame": 462521,
-      "duration_frames": 49478,
-      "overlap": false,
-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 159896
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/49/laugh/0061.wav",
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-    {
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041684.json b/conversations/conv_041684.json
deleted file mode 100644
index 4f1ac4ccbc5573ba6f1aa0284a07168072d62c41..0000000000000000000000000000000000000000
--- a/conversations/conv_041684.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1260",
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-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_041685.json b/conversations/conv_041685.json
deleted file mode 100644
index 1aab359ff9fe304b173893ba0708882b256682f9..0000000000000000000000000000000000000000
--- a/conversations/conv_041685.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "segment_id": "seg0006",
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_041688.json b/conversations/conv_041688.json
deleted file mode 100644
index f9af2ff0ecca9f56fff75e3b28655a6eecd8ca84..0000000000000000000000000000000000000000
--- a/conversations/conv_041688.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3728-105398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105398.flac |",
-      "real_speaker_id": "3728",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.7723946132870925,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-7741.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31920.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.33795768458881,
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-      "utterance_id": "3513-163606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-163606.flac |",
-      "real_speaker_id": "3513",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
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-      "position_frames": 87490
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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\ No newline at end of file
diff --git a/conversations/conv_041692.json b/conversations/conv_041692.json
deleted file mode 100644
index f638e9dde02fda4b1f2c55ca7ed9b671096b4ba4..0000000000000000000000000000000000000000
--- a/conversations/conv_041692.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.742117695381758,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56170.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9920.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56178.flac |",
-      "real_speaker_id": "6102",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3866",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56170.flac |",
-      "real_speaker_id": "6102",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041702.json b/conversations/conv_041702.json
deleted file mode 100644
index c0905a9643629d849d5be541263b68b40f60fcea..0000000000000000000000000000000000000000
--- a/conversations/conv_041702.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.13146811081179,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "8590-258290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258290.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48830.flac |",
-      "real_speaker_id": "5618",
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-      "segment_id": "seg0002",
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-      "utterance_id": "8590-258292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258292.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "4705-94462",
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-      "real_speaker_id": "4705",
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-      "segment_id": "seg0004",
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-    {
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_041703.json b/conversations/conv_041703.json
deleted file mode 100644
index e999c82eab788c7603c14d6829be9da1670c6d74..0000000000000000000000000000000000000000
--- a/conversations/conv_041703.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.63962076214244,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-16048.flac |",
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-    {
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-      "utterance_id": "4705-94462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94462.flac |",
-      "real_speaker_id": "4705",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52087.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.974754899732623,
-      "end_time": 31.63962076214244,
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-      "utterance_id": "5914-52088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
-      "real_speaker_id": "5914",
-      "position_frames": 79583
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "event_class": "Cat",
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-      "start_time": 5.484767895514816,
-      "speaker_id": "4705"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4705/cough/0091.wav",
-      "duration": 0.5274243765486823,
-      "start_time": 11.860769984441582,
-      "speaker_id": "4705"
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-      "event_class": "cough",
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-      "duration": 0.37193025598713403,
-      "start_time": 22.766484795433108,
-      "speaker_id": "5914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041705.json b/conversations/conv_041705.json
deleted file mode 100644
index e257db94af00ea4b555e04cb8dd371cabfe88289..0000000000000000000000000000000000000000
--- a/conversations/conv_041705.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.521628010024682,
-      "duration": 4.521628010024682,
-      "start_frame": 0,
-      "duration_frames": 72346,
-      "overlap": false,
-      "utterance_id": "3557-8341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8341.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.786302603016985,
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-      "duration": 6.0186135146961135,
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-      "duration_frames": 96297,
-      "overlap": false,
-      "utterance_id": "103-1241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "2895-8662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8662.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.823220524388152,
-      "end_time": 22.031500826361153,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 96297
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.48320495722187,
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-      "utterance_id": "2895-8662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8662.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 65269
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.187935854280944,
-      "end_time": 32.0,
-      "duration": 3.812064145719056,
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-      "overlap": false,
-      "utterance_id": "103-1240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1240.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2895/laugh/0069.wav",
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-    {
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-      "duration": 0.8695774609833449,
-      "start_time": 22.547306614566377,
-      "speaker_id": "2895"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041713.json b/conversations/conv_041713.json
deleted file mode 100644
index 1e9526e649228e967921b73fc5d1abf96a288d76..0000000000000000000000000000000000000000
--- a/conversations/conv_041713.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1365-134825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134825.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.587779321176998,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
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-      "duration_frames": 102312,
-      "overlap": true,
-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.682229042172526,
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-      "duration": 3.3975276239720147,
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-      "duration_frames": 54360,
-      "overlap": false,
-      "utterance_id": "4205-11977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 69996
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 102312
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134825.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 92439
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041714.json b/conversations/conv_041714.json
deleted file mode 100644
index e51d8c8949bc58e4dc7e81ae0433559262c69360..0000000000000000000000000000000000000000
--- a/conversations/conv_041714.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7559-96247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.4321408346755184,
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-      "duration_frames": 95897,
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-      "utterance_id": "820-123135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/820-123135.flac |",
-      "real_speaker_id": "820",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7559",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 59594
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.586823433248142,
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-      "utterance_id": "7559-96246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
-      "position_frames": 73522
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1049/cough/0006.wav",
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-      "start_time": 24.124607212839436,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041718.json b/conversations/conv_041718.json
deleted file mode 100644
index 418e25a4f0cfff067207f8ea216709adbc2ae92c..0000000000000000000000000000000000000000
--- a/conversations/conv_041718.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.087311107739001,
-      "duration": 6.087311107739001,
-      "start_frame": 0,
-      "duration_frames": 97396,
-      "overlap": false,
-      "utterance_id": "3157-119295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-119295.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.44499749091191,
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-      "duration_frames": 73489,
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-      "utterance_id": "7833-102239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041722.json b/conversations/conv_041722.json
deleted file mode 100644
index 120cc7f3b80a595e421c77008f9c79a57587d127..0000000000000000000000000000000000000000
--- a/conversations/conv_041722.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.037998960067988,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "103-1241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 4.695195565065677,
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-      "utterance_id": "6676-71414",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-71414.flac |",
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-      "position_frames": 0
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-      "start_time": 8.457172408567743,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291964.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "103-1241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 68617
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.453545448743572,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-73705.flac |",
-      "real_speaker_id": "7138",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-71414.flac |",
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-      "position_frames": 50651
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_041734.json b/conversations/conv_041734.json
deleted file mode 100644
index 56ee0b57f8f11bea97e93320613e6e1367d2307e..0000000000000000000000000000000000000000
--- a/conversations/conv_041734.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19218.flac |",
-      "real_speaker_id": "5393",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_041738.json b/conversations/conv_041738.json
deleted file mode 100644
index fed309b0b4e9eec03587ce13c6ffc8778ab3a0f5..0000000000000000000000000000000000000000
--- a/conversations/conv_041738.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_041743.json b/conversations/conv_041743.json
deleted file mode 100644
index 17e7dd23dbf571723020d35512ffdcb0b4d5d2dd..0000000000000000000000000000000000000000
--- a/conversations/conv_041743.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.43205022853586,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-    {
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-      "overlap": true,
-      "utterance_id": "6943-64094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-64094.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 53612
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.824268839299055,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85168.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6943/laugh/0094.wav",
-      "duration": 0.7470018984183283,
-      "start_time": 24.154341128217055,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6943/laugh/0126.wav",
-      "duration": 0.5882953699569198,
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-      "speaker_id": "6943"
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-}
\ No newline at end of file
diff --git a/conversations/conv_041744.json b/conversations/conv_041744.json
deleted file mode 100644
index 75601ccadf3b07f21cfa732a5a265fa3ff293069..0000000000000000000000000000000000000000
--- a/conversations/conv_041744.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.2598061066027735,
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-      "overlap": false,
-      "utterance_id": "3411-130135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3411-130135.flac |",
-      "real_speaker_id": "3411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.240773029553811,
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-      "duration": 5.153934846348522,
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-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.174159740702523,
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-      "utterance_id": "3411-187007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3411-187007.flac |",
-      "real_speaker_id": "3411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.116699443258735,
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-      "duration_frames": 85736,
-      "overlap": false,
-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 82462
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.373897004863778,
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-      "utterance_id": "1903-132499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
-      "position_frames": 168198
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.33253849418444,
-      "end_time": 32.0,
-      "duration": 2.6674615058155595,
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-      "utterance_id": "3411-187012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3411-187012.flac |",
-      "real_speaker_id": "3411",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "1903"
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-      "speaker_id": "1903"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041752.json b/conversations/conv_041752.json
deleted file mode 100644
index bba54efa4b6b4180cdfb924b1b0e9e60d0d2eb1b..0000000000000000000000000000000000000000
--- a/conversations/conv_041752.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "8576-285176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-285176.flac |",
-      "real_speaker_id": "8576",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.139988779031953,
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-      "utterance_id": "8576-300229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-300229.flac |",
-      "real_speaker_id": "8576",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8197-278214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278214.flac |",
-      "real_speaker_id": "8197",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "start_time": 0,
-      "speaker_id": "8576"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041755.json b/conversations/conv_041755.json
deleted file mode 100644
index 05adda25ea7ee3edaca99ac1be93f25a9b73a8eb..0000000000000000000000000000000000000000
--- a/conversations/conv_041755.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.294110808717157,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.8246213717952107,
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-      "utterance_id": "6406-88089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-88089.flac |",
-      "real_speaker_id": "6406",
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-      "utterance_id": "5970-54428",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6406-89940",
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-      "real_speaker_id": "6406",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.656463454494627,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6406-89940.flac |",
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-      "position_frames": 92373
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_041759.json b/conversations/conv_041759.json
deleted file mode 100644
index d682ad60a828b715bfb51184e55ea98b3d7aa862..0000000000000000000000000000000000000000
--- a/conversations/conv_041759.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "4423-29084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-29084.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.66620229827677,
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-      "real_speaker_id": "5868",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "4423-29083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-29083.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "duration": 1.2,
-      "start_time": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041763.json b/conversations/conv_041763.json
deleted file mode 100644
index 9cc7054ac8a39c5251719fc85a2df276a2009532..0000000000000000000000000000000000000000
--- a/conversations/conv_041763.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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\ No newline at end of file
diff --git a/conversations/conv_041775.json b/conversations/conv_041775.json
deleted file mode 100644
index d762607df85b6a3bfb5e1ab633a17a1a6ba599d7..0000000000000000000000000000000000000000
--- a/conversations/conv_041775.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_041778.json b/conversations/conv_041778.json
deleted file mode 100644
index 00ba0fa019f0a86cdb73c8e8611d12506bd402e2..0000000000000000000000000000000000000000
--- a/conversations/conv_041778.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "background_events": [],
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-}
\ No newline at end of file
diff --git a/conversations/conv_041779.json b/conversations/conv_041779.json
deleted file mode 100644
index a4b950885377a2c553d226dfb754355684e86f90..0000000000000000000000000000000000000000
--- a/conversations/conv_041779.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.243571824877874,
-      "duration": 5.243571824877874,
-      "start_frame": 0,
-      "duration_frames": 83897,
-      "overlap": false,
-      "utterance_id": "4706-28495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28495.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.658286428174369,
-      "end_time": 9.375653345639277,
-      "duration": 3.717366917464908,
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-      "overlap": false,
-      "utterance_id": "4706-28494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28494.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.45198625692435,
-      "end_time": 13.874507062915045,
-      "duration": 3.4225208059906955,
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-      "duration_frames": 54760,
-      "overlap": false,
-      "utterance_id": "4706-28495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28495.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 83897
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.109013615591447,
-      "end_time": 19.175370897462038,
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-      "start_frame": 241744,
-      "duration_frames": 65061,
-      "overlap": false,
-      "utterance_id": "7445-94526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7445-94526.flac |",
-      "real_speaker_id": "7445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.417984507444373,
-      "end_time": 25.413852966927912,
-      "duration": 5.995868459483539,
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-      "duration_frames": 95933,
-      "overlap": false,
-      "utterance_id": "7886-110517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110517.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.78953453382698,
-      "end_time": 30.76733953720344,
-      "duration": 4.977805003376462,
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-      "utterance_id": "4706-18009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-18009.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.620731201136337,
-      "end_time": 32.0,
-      "duration": 0.37926879886366294,
-      "start_frame": 505931,
-      "duration_frames": 6068,
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-      "utterance_id": "7886-110517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110517.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 95933
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4706/laugh/0016.wav",
-      "duration": 1.32,
-      "start_time": 3.3526469756155213,
-      "speaker_id": "4706"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4706/cough/0087.wav",
-      "duration": 0.4413194236584985,
-      "start_time": 9.438937730653166,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4706/laugh/0120.wav",
-      "duration": 0.6870055603801073,
-      "start_time": 11.140581901621466,
-      "speaker_id": "4706"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4706/cough/0039.wav",
-      "duration": 0.76,
-      "start_time": 14.001034591569061,
-      "speaker_id": "4706"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7886/cough/0023.wav",
-      "duration": 0.48337504682856625,
-      "start_time": 18.849741740342832,
-      "speaker_id": "7886"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7886/laugh/0029.wav",
-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "7886"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041780.json b/conversations/conv_041780.json
deleted file mode 100644
index 8f265b1cb2f9aad4a14e11b257f13f012c3babca..0000000000000000000000000000000000000000
--- a/conversations/conv_041780.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.866914363404355,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.160978589321755,
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-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.856882216216437,
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-      "start_frame": 205710,
-      "duration_frames": 99398,
-      "overlap": false,
-      "utterance_id": "4930-20046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20046.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.867456990486236,
-      "end_time": 25.279584177666504,
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-      "duration_frames": 86594,
-      "overlap": true,
-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 89809
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.984736899432406,
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-      "overlap": false,
-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4930/laugh/0008.wav",
-      "duration": 0.6680066568786515,
-      "start_time": 19.080643581402562,
-      "speaker_id": "4930"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041796.json b/conversations/conv_041796.json
deleted file mode 100644
index 53a6fab84ca5b7974d3120cc4144bcdf98a7970f..0000000000000000000000000000000000000000
--- a/conversations/conv_041796.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "766-127193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127193.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1383-130532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130532.flac |",
-      "real_speaker_id": "1383",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1446-122614",
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-      "real_speaker_id": "1446",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_041797.json b/conversations/conv_041797.json
deleted file mode 100644
index e59bd7a54003ea2c569f82ea4c4f92d592d36814..0000000000000000000000000000000000000000
--- a/conversations/conv_041797.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.13454683933894,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "7823-103122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7823-103122.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3440/cough/0089.wav",
-      "duration": 1.3414646320927575,
-      "start_time": 7.049682436985485,
-      "speaker_id": "3440"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3440/laugh/0082.wav",
-      "duration": 1.5305681012581875,
-      "start_time": 27.829288923922093,
-      "speaker_id": "3440"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041807.json b/conversations/conv_041807.json
deleted file mode 100644
index 2bf29d0a3bc55461238b3f46c4ec2b05f3f49e0b..0000000000000000000000000000000000000000
--- a/conversations/conv_041807.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.1791635032453,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.690098075101604,
-      "duration": 5.690098075101604,
-      "start_frame": 0,
-      "duration_frames": 91041,
-      "overlap": false,
-      "utterance_id": "6943-64094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-64094.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.764582464786802,
-      "end_time": 9.776574667451683,
-      "duration": 4.011992202664882,
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-      "overlap": true,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.34921244649081,
-      "end_time": 14.66563890459437,
-      "duration": 4.316426458103561,
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-      "duration_frames": 69062,
-      "overlap": true,
-      "utterance_id": "5185-24763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5185-24763.flac |",
-      "real_speaker_id": "5185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.503784543943418,
-      "end_time": 22.125226244182763,
-      "duration": 5.621441700239344,
-      "start_frame": 264060,
-      "duration_frames": 89943,
-      "overlap": false,
-      "utterance_id": "6943-85172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85172.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.520622947007496,
-      "end_time": 28.621642369780528,
-      "duration": 6.1010194227730326,
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-      "utterance_id": "5185-24772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5185-24772.flac |",
-      "real_speaker_id": "5185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.704003831154957,
-      "end_time": 31.1791635032453,
-      "duration": 2.475159672090342,
-      "start_frame": 459264,
-      "duration_frames": 39602,
-      "overlap": true,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 64191
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
-      "duration": 4.829017434530183,
-      "start_time": 23.815457672510906
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_041811.json b/conversations/conv_041811.json
deleted file mode 100644
index 9157820caa445bc74cc9f4a2c67ded1c12710865..0000000000000000000000000000000000000000
--- a/conversations/conv_041811.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.399707319522443,
-      "duration": 6.399707319522443,
-      "start_frame": 0,
-      "duration_frames": 102395,
-      "overlap": false,
-      "utterance_id": "1760-143006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1760-143006.flac |",
-      "real_speaker_id": "1760",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.96027409008874,
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-      "start_frame": 111364,
-      "duration_frames": 110537,
-      "overlap": false,
-      "utterance_id": "8200-278238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278238.flac |",
-      "real_speaker_id": "8200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.695904602049202,
-      "end_time": 21.28933187621178,
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-      "duration_frames": 105494,
-      "overlap": false,
-      "utterance_id": "1760-143006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1760-143006.flac |",
-      "real_speaker_id": "1760",
-      "position_frames": 102395
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.709291744352313,
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-      "duration": 4.136220012676876,
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-      "overlap": true,
-      "utterance_id": "3294-167609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167609.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.139916001961737,
-      "end_time": 32.0,
-      "duration": 4.860083998038263,
-      "start_frame": 434238,
-      "duration_frames": 77761,
-      "overlap": false,
-      "utterance_id": "8200-278197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278197.flac |",
-      "real_speaker_id": "8200",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 22.56219954648526,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.4858076625455734,
-      "start_time": 14.975875527239936
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
-      "duration": 0.3160770975056689,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.7090801068362557,
-      "start_time": 10.837879688978838,
-      "speaker_id": "8200"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8200/laugh/0060.wav",
-      "duration": 1.16,
-      "start_time": 25.90314635421926,
-      "speaker_id": "8200"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8200/cough/0028.wav",
-      "duration": 0.6622084515963789,
-      "start_time": 26.371227048737065,
-      "speaker_id": "8200"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041827.json b/conversations/conv_041827.json
deleted file mode 100644
index c5c01874a4ce0f38bbc7252614d2859ffb95f0dc..0000000000000000000000000000000000000000
--- a/conversations/conv_041827.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.349430247273585,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2988-173558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-173558.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.2293060919414955,
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-      "utterance_id": "348-128030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-128030.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.648952900819287,
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-      "overlap": false,
-      "utterance_id": "2988-173558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-173558.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 84704
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.413118631067157,
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-      "utterance_id": "6880-216547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6880-216547.flac |",
-      "real_speaker_id": "6880",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 21.364196951795506,
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-      "utterance_id": "348-132611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132611.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.044400467934697,
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-      "duration_frames": 84880,
-      "overlap": false,
-      "utterance_id": "2988-173558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2988-173558.flac |",
-      "real_speaker_id": "2988",
-      "position_frames": 145928
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-  ],
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-      "event_class": "Electric_shaver_toothbrush",
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-    {
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-      "duration": 0.96,
-      "start_time": 0,
-      "speaker_id": "2988"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2988/cough/0049.wav",
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-    {
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-      "duration": 1.04,
-      "start_time": 20.316973096415992,
-      "speaker_id": "348"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041831.json b/conversations/conv_041831.json
deleted file mode 100644
index e6a991852eb9ee698c5c5ec65f9e3f9c47becb7a..0000000000000000000000000000000000000000
--- a/conversations/conv_041831.json
+++ /dev/null
@@ -1,101 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration_frames": 77141,
-      "overlap": false,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.423865266581768,
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-      "real_speaker_id": "7320",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 77141
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.809534613944138,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-104988.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.04919801842365,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 183215
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-  "background_events": [
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-  "foreground_events": [
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-      "duration": 1.7149764153360265,
-      "start_time": 16.76514372036469
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_041846.json b/conversations/conv_041846.json
deleted file mode 100644
index 13e4a6839b19d120da7631d1459229cbd5c23e45..0000000000000000000000000000000000000000
--- a/conversations/conv_041846.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.838957384736711,
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-      "segment_id": "seg0004",
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-      "speaker_id": "1472"
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-}
\ No newline at end of file
diff --git a/conversations/conv_041847.json b/conversations/conv_041847.json
deleted file mode 100644
index c44c4e6b7713a264b6cc39dce2d46f80f37ca5f7..0000000000000000000000000000000000000000
--- a/conversations/conv_041847.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4211-3835",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3835.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3820.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275209.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3820.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 89245
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-      "segment_id": "seg0005",
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-      "utterance_id": "2140-39822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-39822.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-      "start_time": 0,
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\ No newline at end of file
diff --git a/conversations/conv_041850.json b/conversations/conv_041850.json
deleted file mode 100644
index 09d4c10a36ec466113ae779e71d244ae7baf4dd3..0000000000000000000000000000000000000000
--- a/conversations/conv_041850.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.217705288609434,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
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-      "utterance_id": "3373-174981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174981.flac |",
-      "real_speaker_id": "3373",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "7522",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174981.flac |",
-      "real_speaker_id": "3373",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_041857.json b/conversations/conv_041857.json
deleted file mode 100644
index f38e1eb0d13f2392a7bc78fb9b985944912da57c..0000000000000000000000000000000000000000
--- a/conversations/conv_041857.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1968-145732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-136483.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.70577501630517,
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-      "utterance_id": "1968-145732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
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-    {
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-    {
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-      "utterance_id": "8051-118101",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041866.json b/conversations/conv_041866.json
deleted file mode 100644
index bf8a4f29e88a9e50a643362425d10061cd986748..0000000000000000000000000000000000000000
--- a/conversations/conv_041866.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "real_speaker_id": "85",
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.361041671059112,
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_041870.json b/conversations/conv_041870.json
deleted file mode 100644
index efc1da7085dd313ef549e6197d8868109a9f83d0..0000000000000000000000000000000000000000
--- a/conversations/conv_041870.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "94-3793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3793.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3793.flac |",
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-      "utterance_id": "1846-144458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1846-144458.flac |",
-      "real_speaker_id": "1846",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041882.json b/conversations/conv_041882.json
deleted file mode 100644
index 6d2e509b2f019799e1ac291457e88980fbc51105..0000000000000000000000000000000000000000
--- a/conversations/conv_041882.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130532.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1383-130532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130532.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 64664
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041885.json b/conversations/conv_041885.json
deleted file mode 100644
index 7d4c1269e69ab63a5555741949f5555b58d3be79..0000000000000000000000000000000000000000
--- a/conversations/conv_041885.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8118-114476",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041889.json b/conversations/conv_041889.json
deleted file mode 100644
index 6d6c5566a39821811d4b3337112552f75fc5e61f..0000000000000000000000000000000000000000
--- a/conversations/conv_041889.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
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-      "real_speaker_id": "637",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3595-176633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3595-176633.flac |",
-      "real_speaker_id": "3595",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146849.flac |",
-      "real_speaker_id": "1685",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_041893.json b/conversations/conv_041893.json
deleted file mode 100644
index ce672321efe9e92d450d3a4e2e149b7024732a64..0000000000000000000000000000000000000000
--- a/conversations/conv_041893.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-59414.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
-      "position_frames": 146565
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8015-112691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112691.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_041894.json b/conversations/conv_041894.json
deleted file mode 100644
index 9c216903022e43e1fb5e94c5fc2a11dec36e69a1..0000000000000000000000000000000000000000
--- a/conversations/conv_041894.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.721206724899073,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
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-      "real_speaker_id": "1161",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041902.json b/conversations/conv_041902.json
deleted file mode 100644
index 0a5b2a2c119e560ac41797eb0a423b7cd0a02d8e..0000000000000000000000000000000000000000
--- a/conversations/conv_041902.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.42995022576226,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
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-      "utterance_id": "3373-174981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174981.flac |",
-      "real_speaker_id": "3373",
-      "position_frames": 113394
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-      "start_time": 16.384403429096313
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_041903.json b/conversations/conv_041903.json
deleted file mode 100644
index f7d269d218747c0293da5b817229a023d38727f0..0000000000000000000000000000000000000000
--- a/conversations/conv_041903.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.530084847393532,
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-      "start_frame": 0,
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-      "utterance_id": "7247-101864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-101864.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-146770.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.675914916364487,
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-      "utterance_id": "3557-8342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3557-8342.flac |",
-      "real_speaker_id": "3557",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.417311042979627,
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-      "utterance_id": "7247-101864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-101864.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 88481
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.002147801523662,
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-      "utterance_id": "1401-14358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-14358.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.914470065452257,
-      "end_time": 32.0,
-      "duration": 3.0855299345477434,
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-      "overlap": false,
-      "utterance_id": "7247-77778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-77778.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "start_time": 30.64,
-      "speaker_id": "7247"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041912.json b/conversations/conv_041912.json
deleted file mode 100644
index 369256f8a9db1243284d1cc9e12550deb110c587..0000000000000000000000000000000000000000
--- a/conversations/conv_041912.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138035.flac |",
-      "real_speaker_id": "2989",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "utterance_id": "2989-138035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138035.flac |",
-      "real_speaker_id": "2989",
-      "position_frames": 66322
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147968.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "6652-70975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_041915.json b/conversations/conv_041915.json
deleted file mode 100644
index e1acaec60011f2646416813061b0bc9c1084505f..0000000000000000000000000000000000000000
--- a/conversations/conv_041915.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1571-138486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-138486.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-160870.flac |",
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-      "real_speaker_id": "1571",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_041919.json b/conversations/conv_041919.json
deleted file mode 100644
index 35f1b0d4abc7c7340395d13ce3fa932626c59205..0000000000000000000000000000000000000000
--- a/conversations/conv_041919.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_041923.json b/conversations/conv_041923.json
deleted file mode 100644
index 2ba092657321b0429b5fbb35dd4762cf1f43d03f..0000000000000000000000000000000000000000
--- a/conversations/conv_041923.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-17615.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1800-142858.flac |",
-      "real_speaker_id": "1800",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-17615.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_041928.json b/conversations/conv_041928.json
deleted file mode 100644
index 244639c4ab21350fc94ee277c5336165e93777a5..0000000000000000000000000000000000000000
--- a/conversations/conv_041928.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2143-145731.flac |",
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_041935.json b/conversations/conv_041935.json
deleted file mode 100644
index 04aefa0467436378a8e0b57917999fdfc6774c5e..0000000000000000000000000000000000000000
--- a/conversations/conv_041935.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": 0,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041939.json b/conversations/conv_041939.json
deleted file mode 100644
index ee9c25fd7db0fad1b5910965dc24018a79028d4e..0000000000000000000000000000000000000000
--- a/conversations/conv_041939.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99368950080288,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6072-54656.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64290.flac |",
-      "real_speaker_id": "6426",
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-}
\ No newline at end of file
diff --git a/conversations/conv_041942.json b/conversations/conv_041942.json
deleted file mode 100644
index 4bbad8079ebcb4156c01a63bf9a3b5bebf0ba643..0000000000000000000000000000000000000000
--- a/conversations/conv_041942.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "3972-170212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3972-170212.flac |",
-      "real_speaker_id": "3972",
-      "position_frames": 0
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-      "start_time": 3.8870259878686033,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3972-185074.flac |",
-      "real_speaker_id": "3972",
-      "position_frames": 0
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-      "utterance_id": "1387-130993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1387-130993.flac |",
-      "real_speaker_id": "1387",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.635216953328715,
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-      "utterance_id": "3972-5791",
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\ No newline at end of file
diff --git a/conversations/conv_041954.json b/conversations/conv_041954.json
deleted file mode 100644
index ffc238f6050670e435c162def598092414b9f9be..0000000000000000000000000000000000000000
--- a/conversations/conv_041954.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_041955.json b/conversations/conv_041955.json
deleted file mode 100644
index fe836b916f7d00f51432ce72030c689771034415..0000000000000000000000000000000000000000
--- a/conversations/conv_041955.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-8592.flac |",
-      "real_speaker_id": "7739",
-      "position_frames": 0
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-      "utterance_id": "7739-8592",
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-      "position_frames": 98052
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8791"
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-}
\ No newline at end of file
diff --git a/conversations/conv_041958.json b/conversations/conv_041958.json
deleted file mode 100644
index a92fb17436c1080c4e377c3313637624eccd0a45..0000000000000000000000000000000000000000
--- a/conversations/conv_041958.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 0
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-      "real_speaker_id": "613",
-      "position_frames": 63984
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-      "speaker_id": 2,
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-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65530.flac |",
-      "real_speaker_id": "5949",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "speaker_id": "5949"
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-}
\ No newline at end of file
diff --git a/conversations/conv_041962.json b/conversations/conv_041962.json
deleted file mode 100644
index 7480cc207c58a55dbf30c3ea634ef3dd1e27a040..0000000000000000000000000000000000000000
--- a/conversations/conv_041962.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.885646138806873,
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-      "overlap": false,
-      "utterance_id": "2488-155524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155524.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.790411214324371,
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-      "utterance_id": "2289-152254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152254.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160959.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155524.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 94170
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 0.3819380360962228,
-      "start_frame": 505888,
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-      "overlap": false,
-      "utterance_id": "2748-160959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160959.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 93260
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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\ No newline at end of file
diff --git a/conversations/conv_041969.json b/conversations/conv_041969.json
deleted file mode 100644
index e91c034c14f45738dd545f516bb0b9bb0aa57b4d..0000000000000000000000000000000000000000
--- a/conversations/conv_041969.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.09018497255265,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7079-2333",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-2333.flac |",
-      "real_speaker_id": "7079",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "8266",
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-      "real_speaker_id": "7079",
-      "position_frames": 93702
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-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "7331-86025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86025.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041974.json b/conversations/conv_041974.json
deleted file mode 100644
index bf099b5b9cc377165b509a3d82d9b94ffe1de07c..0000000000000000000000000000000000000000
--- a/conversations/conv_041974.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "7708-296091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-296091.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "4490-16020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16020.flac |",
-      "real_speaker_id": "4490",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-296091.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 88509
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "127-129385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "127-129390",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4490-16020",
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-      "real_speaker_id": "4490",
-      "position_frames": 72649
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-296091.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 196699
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-  "foreground_events": [
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-      "duration": 0.5768027210884353,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/127/laugh/0136.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "7708"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_041978.json b/conversations/conv_041978.json
deleted file mode 100644
index 24bf8b5439bafb94c014e642862f374fbef5f9c0..0000000000000000000000000000000000000000
--- a/conversations/conv_041978.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
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\ No newline at end of file
diff --git a/conversations/conv_041981.json b/conversations/conv_041981.json
deleted file mode 100644
index 438ff0aa99759ffa375f29ecc87e3ffd1888e080..0000000000000000000000000000000000000000
--- a/conversations/conv_041981.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_041986.json b/conversations/conv_041986.json
deleted file mode 100644
index 3d22c502736685a837f2b9063f5dabb025a4b8c0..0000000000000000000000000000000000000000
--- a/conversations/conv_041986.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_041990.json b/conversations/conv_041990.json
deleted file mode 100644
index 6232f588f225b69876b4570b34617ce1b548e994..0000000000000000000000000000000000000000
--- a/conversations/conv_041990.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "real_speaker_id": "8975",
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-      "start_time": 30.84,
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-}
\ No newline at end of file
diff --git a/conversations/conv_041997.json b/conversations/conv_041997.json
deleted file mode 100644
index 37cba26e81153a51130dca9f0b03300acc013145..0000000000000000000000000000000000000000
--- a/conversations/conv_041997.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_042006.json b/conversations/conv_042006.json
deleted file mode 100644
index 0f2124ca0eea1c8aab88738263da75aa0101f87e..0000000000000000000000000000000000000000
--- a/conversations/conv_042006.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_042010.json b/conversations/conv_042010.json
deleted file mode 100644
index b72f3edf9f0b13d191fa31797d60623f499be884..0000000000000000000000000000000000000000
--- a/conversations/conv_042010.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_042011.json b/conversations/conv_042011.json
deleted file mode 100644
index 3dd53edbb087c49bacc9eb56b0ffff7cd95050c3..0000000000000000000000000000000000000000
--- a/conversations/conv_042011.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_042026.json b/conversations/conv_042026.json
deleted file mode 100644
index 27ab3de93bca90eec3442ea97659fa6bafecd693..0000000000000000000000000000000000000000
--- a/conversations/conv_042026.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.571662506448755,
-      "duration": 5.571662506448755,
-      "start_frame": 0,
-      "duration_frames": 89146,
-      "overlap": false,
-      "utterance_id": "8300-275128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275128.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.421242478687922,
-      "end_time": 12.933739294364656,
-      "duration": 6.512496815676734,
-      "start_frame": 102739,
-      "duration_frames": 104199,
-      "overlap": false,
-      "utterance_id": "7247-94108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-94108.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.399998345132978,
-      "end_time": 20.056815627501177,
-      "duration": 6.656817282368198,
-      "start_frame": 214399,
-      "duration_frames": 106509,
-      "overlap": false,
-      "utterance_id": "8300-275127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275127.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.20260444589049,
-      "end_time": 24.51385804309311,
-      "duration": 4.311253597202618,
-      "start_frame": 323241,
-      "duration_frames": 68980,
-      "overlap": false,
-      "utterance_id": "7247-94108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-94108.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 104199
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.801682132935312,
-      "end_time": 29.77017031893591,
-      "duration": 4.9684881860006005,
-      "start_frame": 396826,
-      "duration_frames": 79495,
-      "overlap": false,
-      "utterance_id": "6127-2344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-2344.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.431743887272624,
-      "end_time": 32.0,
-      "duration": 1.5682561127273758,
-      "start_frame": 486907,
-      "duration_frames": 25092,
-      "overlap": false,
-      "utterance_id": "7247-94108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-94108.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 173179
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
-      "duration": 26.600368248056434,
-      "start_time": 2.455244124683589
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_6.wav",
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-      "start_time": 23.989115932421868
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8300/laugh/0036.wav",
-      "duration": 1.0203479908642334,
-      "start_time": 0,
-      "speaker_id": "8300"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8300/laugh/0042.wav",
-      "duration": 1.36,
-      "start_time": 20.204213607388876,
-      "speaker_id": "8300"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/cough/0007.wav",
-      "duration": 0.9524104978604166,
-      "start_time": 23.769564985345237,
-      "speaker_id": "6127"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7247/cough/0088.wav",
-      "duration": 1.2476552924621487,
-      "start_time": 30.67917189529261,
-      "speaker_id": "7247"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042030.json b/conversations/conv_042030.json
deleted file mode 100644
index 4a05fbca2a2778ff23413c9246ffd7d7f6c2c450..0000000000000000000000000000000000000000
--- a/conversations/conv_042030.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.662622673406247,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.176270904240603,
-      "duration": 6.176270904240603,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7467-261121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.557492566246485,
-      "end_time": 13.194304846525743,
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-      "utterance_id": "5361-27491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5361-27491.flac |",
-      "real_speaker_id": "5361",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.73281600092325,
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-      "duration": 6.5851529268879165,
-      "start_frame": 219725,
-      "duration_frames": 105362,
-      "overlap": true,
-      "utterance_id": "7467-261121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 98820
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.605833347215,
-      "end_time": 26.5689286100699,
-      "duration": 4.963095262854899,
-      "start_frame": 345693,
-      "duration_frames": 79409,
-      "overlap": false,
-      "utterance_id": "5361-27492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5361-27492.flac |",
-      "real_speaker_id": "5361",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 27.29145320399597,
-      "end_time": 31.662622673406247,
-      "duration": 4.371169469410277,
-      "start_frame": 436663,
-      "duration_frames": 69938,
-      "overlap": false,
-      "utterance_id": "7436-97462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97462.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 20.31707935065038,
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5361/cough/0027.wav",
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-      "speaker_id": "5361"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7467/cough/0023.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7436/laugh/0070.wav",
-      "duration": 1.52,
-      "start_time": 27.936000911996363,
-      "speaker_id": "7436"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042046.json b/conversations/conv_042046.json
deleted file mode 100644
index e0a5b496a226820392d2c21fffdb26f85ba9f521..0000000000000000000000000000000000000000
--- a/conversations/conv_042046.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7713-106729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106729.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-174172.flac |",
-      "real_speaker_id": "2196",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7713-106738",
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-      "real_speaker_id": "7713",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "7981",
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-    {
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-      "position_frames": 75919
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 2.861420345929343,
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-      "overlap": false,
-      "utterance_id": "7981-112058",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112058.flac |",
-      "real_speaker_id": "7981",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2196/laugh/0003.wav",
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042047.json b/conversations/conv_042047.json
deleted file mode 100644
index a341d9bf3d8dd8e0cd53f05c4968778a63d49553..0000000000000000000000000000000000000000
--- a/conversations/conv_042047.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6065-111797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-111797.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.361532093978389,
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-    {
-      "segment_id": "seg0002",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0006",
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-      "duration": 1.24,
-      "start_time": 17.28687331052594,
-      "speaker_id": "5935"
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-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 24.26057807286242,
-      "speaker_id": "6065"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042051.json b/conversations/conv_042051.json
deleted file mode 100644
index ef8d426060c65cc1bd95dda016557ec5900e2569..0000000000000000000000000000000000000000
--- a/conversations/conv_042051.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54007.flac |",
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-      "utterance_id": "242-122627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 104449
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.83642608531844,
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-      "utterance_id": "6078-54013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54013.flac |",
-      "real_speaker_id": "6078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.1072953902016,
-      "end_time": 29.970024151662596,
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-      "overlap": false,
-      "utterance_id": "2067-143535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143535.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.319609133990195,
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-      "duration": 1.6803908660098053,
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-      "duration_frames": 26886,
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-      "utterance_id": "242-122626",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122626.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-      "duration": 1.0,
-      "start_time": 29.221751157474706,
-      "speaker_id": "242"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042067.json b/conversations/conv_042067.json
deleted file mode 100644
index f9b33250a05eb9ded34f22a768fa2a817c463649..0000000000000000000000000000000000000000
--- a/conversations/conv_042067.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5911.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-150351.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5912.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-150351.flac |",
-      "real_speaker_id": "1841",
-      "position_frames": 80823
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_042071.json b/conversations/conv_042071.json
deleted file mode 100644
index 7d95639830f7ca921c3a7d784e9b07e006b5ace9..0000000000000000000000000000000000000000
--- a/conversations/conv_042071.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
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-  "foreground_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_042083.json b/conversations/conv_042083.json
deleted file mode 100644
index aa23feb8eae26c6d453b411f920afbf9dd21bd3b..0000000000000000000000000000000000000000
--- a/conversations/conv_042083.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "544",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/544-121090.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
-      "position_frames": 162297
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_0.wav",
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-      "event_class": "Alarm_bell_ringing",
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-      "speaker_id": "811"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042084.json b/conversations/conv_042084.json
deleted file mode 100644
index c3f2d61d9d9c76f1a2d4b5434ccb973967074c70..0000000000000000000000000000000000000000
--- a/conversations/conv_042084.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.576243019871455,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.2369594241006725,
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-      "utterance_id": "1647-140649",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-140649.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.028327934474159,
-      "end_time": 9.909630924644304,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7480-93348.flac |",
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-      "overlap": false,
-      "utterance_id": "4246-12545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12545.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.77505730359438,
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-      "utterance_id": "4246-12545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12545.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 83748
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.593336262853377,
-      "end_time": 25.835171147610943,
-      "duration": 3.241834884757566,
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-      "duration_frames": 51869,
-      "overlap": false,
-      "utterance_id": "1647-142742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1647-142742.flac |",
-      "real_speaker_id": "1647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.167261977667035,
-      "end_time": 31.576243019871455,
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-      "overlap": false,
-      "utterance_id": "7480-93348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7480-93348.flac |",
-      "real_speaker_id": "7480",
-      "position_frames": 62100
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_042088.json b/conversations/conv_042088.json
deleted file mode 100644
index e2fe24c4983141430cb8c8dd92b760b4a4dbf9f3..0000000000000000000000000000000000000000
--- a/conversations/conv_042088.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7939-120318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120318.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-142233.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
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-      "start_time": 14.88734173276986,
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-      "overlap": false,
-      "utterance_id": "7939-120325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120325.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "7346-91900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
-      "real_speaker_id": "7346",
-      "position_frames": 50839
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.71462192520476,
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-      "utterance_id": "7939-120325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120325.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 87373
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7346-91900.flac |",
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-      "position_frames": 101986
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042092.json b/conversations/conv_042092.json
deleted file mode 100644
index ecfa4b08c287a90d7458eeffefae7db6fac3f5b0..0000000000000000000000000000000000000000
--- a/conversations/conv_042092.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2026-81608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81608.flac |",
-      "real_speaker_id": "2026",
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-      "real_speaker_id": "3503",
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-      "segment_id": "seg0003",
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-      "utterance_id": "2026-81609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81609.flac |",
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-    },
-    {
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-      "speaker_id": 2,
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-      "real_speaker_id": "3503",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "9000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.761674674265706,
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-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "duration": 1.2,
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-      "speaker_id": "2026"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042095.json b/conversations/conv_042095.json
deleted file mode 100644
index 92c900999b58659cc6322cbd5c24d9d9b5496938..0000000000000000000000000000000000000000
--- a/conversations/conv_042095.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8075-279229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279229.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "3172",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279229.flac |",
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-      "position_frames": 86325
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279229.flac |",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "782"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042102.json b/conversations/conv_042102.json
deleted file mode 100644
index 6c285857027589dd83637b2996abd5d491f47234..0000000000000000000000000000000000000000
--- a/conversations/conv_042102.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3187-168500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168500.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.416276538437246,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62851.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.91728853332002,
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-      "utterance_id": "3187-168500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168500.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 92330
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.15345069525086,
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-      "overlap": false,
-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 69635
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.886902837840818,
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-      "duration": 1.1130971621591819,
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-      "overlap": false,
-      "utterance_id": "3187-168500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168500.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 164221
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-      "duration": 1.34,
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-}
\ No newline at end of file
diff --git a/conversations/conv_042103.json b/conversations/conv_042103.json
deleted file mode 100644
index 087fb89cedd84d28aa2bf215afd70432acf90b43..0000000000000000000000000000000000000000
--- a/conversations/conv_042103.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.709609650301527,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64290.flac |",
-      "real_speaker_id": "6426",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64292.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 0
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-    {
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-      "start_time": 26.284081907200346,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 184341
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "start_time": 30.88,
-      "speaker_id": "6426"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042114.json b/conversations/conv_042114.json
deleted file mode 100644
index 8acdd26b79030f0927527b2296f6dbc269e48b6f..0000000000000000000000000000000000000000
--- a/conversations/conv_042114.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126320.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "1456",
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-    {
-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-    {
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-    {
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-      "speaker_id": "1456"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042118.json b/conversations/conv_042118.json
deleted file mode 100644
index f725c1127a464cbacc2668ef1990fa8299125410..0000000000000000000000000000000000000000
--- a/conversations/conv_042118.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-49593.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "5796",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-66357.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "duration": 1.52,
-      "start_time": 6.314572850177895,
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_042122.json b/conversations/conv_042122.json
deleted file mode 100644
index a3c64544d177cf276e4bd5aec19b49a2ad88c16f..0000000000000000000000000000000000000000
--- a/conversations/conv_042122.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "7062-80029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-80029.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.297596496645874,
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-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.054779391823445,
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-      "overlap": true,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 60263
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.734593476113137,
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-      "overlap": false,
-      "utterance_id": "392-131210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/392-131210.flac |",
-      "real_speaker_id": "392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.47266379773436,
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-      "duration": 5.057481058572039,
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-      "duration_frames": 80919,
-      "overlap": true,
-      "utterance_id": "7062-96512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-96512.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.569638971540734,
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-      "duration_frames": 54885,
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-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 145264
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1943"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042129.json b/conversations/conv_042129.json
deleted file mode 100644
index 8bb820c32c3b1566a3f60bfc1fd8bf1b652b9c1c..0000000000000000000000000000000000000000
--- a/conversations/conv_042129.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.137972610780045,
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-      "overlap": false,
-      "utterance_id": "4111-184447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
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-      "speaker_id": 0,
-      "start_time": 11.487354516734996,
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-      "utterance_id": "4111-184447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 82207
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 74999
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.624624549318078,
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-      "duration": 4.8390829603764045,
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-      "overlap": false,
-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.049389206859736,
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-      "duration": 2.950610793140264,
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-      "utterance_id": "4111-184447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 185921
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "1563"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4111/laugh/0059.wav",
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-      "speaker_id": "4111"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042134.json b/conversations/conv_042134.json
deleted file mode 100644
index 3808c7c3a7e0ff739d3e6f3e4c515ca619648bb6..0000000000000000000000000000000000000000
--- a/conversations/conv_042134.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.702828023608692,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6981-70843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
-      "real_speaker_id": "6981",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.0649587435531345,
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-      "overlap": false,
-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.990385576014722,
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-      "duration_frames": 105989,
-      "overlap": false,
-      "utterance_id": "6981-70843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
-      "real_speaker_id": "6981",
-      "position_frames": 65640
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.95712778998105,
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-      "duration_frames": 86609,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 83370
-    },
-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
-      "real_speaker_id": "6981",
-      "position_frames": 171629
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 64286,
-      "overlap": true,
-      "utterance_id": "4872-20426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20426.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/laugh/0022.wav",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6981/laugh/0123.wav",
-      "duration": 1.36,
-      "start_time": 27.766538821574056,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4872/laugh/0118.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4872/cough/0044.wav",
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-      "start_time": 28.99652713738628,
-      "speaker_id": "4872"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042138.json b/conversations/conv_042138.json
deleted file mode 100644
index 52d868ef70076b506900deff6b984f3b3fb15f37..0000000000000000000000000000000000000000
--- a/conversations/conv_042138.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.778086477946167,
-      "duration": 5.778086477946167,
-      "start_frame": 0,
-      "duration_frames": 92449,
-      "overlap": false,
-      "utterance_id": "500-125123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.221156880288075,
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-      "overlap": false,
-      "utterance_id": "5199-36965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-36965.flac |",
-      "real_speaker_id": "5199",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-36965.flac |",
-      "real_speaker_id": "5199",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042143.json b/conversations/conv_042143.json
deleted file mode 100644
index cdbbb547eb3f119ae1ffcad9624fea6c58d3fca1..0000000000000000000000000000000000000000
--- a/conversations/conv_042143.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 0
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-      "real_speaker_id": "6351",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
-      "real_speaker_id": "7777",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_042154.json b/conversations/conv_042154.json
deleted file mode 100644
index 169e8391a3bc339aa4160b5e1bec79eca030af06..0000000000000000000000000000000000000000
--- a/conversations/conv_042154.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
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-      "position_frames": 142654
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-      "segment_id": "seg0005",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_042155.json b/conversations/conv_042155.json
deleted file mode 100644
index 31867185e93e16f88cee6c8fef33abec7a3628be..0000000000000000000000000000000000000000
--- a/conversations/conv_042155.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2990/cough/0001.wav",
-      "duration": 0.6123277779910086,
-      "start_time": 9.481486581989845,
-      "speaker_id": "2990"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6006/laugh/0050.wav",
-      "duration": 1.010541528530338,
-      "start_time": 20.006629866657253,
-      "speaker_id": "6006"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1052/laugh/0062.wav",
-      "duration": 1.52,
-      "start_time": 29.965333909234825,
-      "speaker_id": "1052"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2990/laugh/0117.wav",
-      "duration": 0.5809011280154445,
-      "start_time": 30.350564142415806,
-      "speaker_id": "2990"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042159.json b/conversations/conv_042159.json
deleted file mode 100644
index 4110517c61c84e35ce88a6602e494de86657463a..0000000000000000000000000000000000000000
--- a/conversations/conv_042159.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.6697884633827815,
-      "duration": 5.6697884633827815,
-      "start_frame": 0,
-      "duration_frames": 90716,
-      "overlap": false,
-      "utterance_id": "6272-70171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70171.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.519005088302505,
-      "end_time": 11.993934274451716,
-      "duration": 6.474929186149211,
-      "start_frame": 88304,
-      "duration_frames": 103598,
-      "overlap": true,
-      "utterance_id": "166-352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.659456935342272,
-      "end_time": 19.550255989515737,
-      "duration": 5.890799054173466,
-      "start_frame": 218551,
-      "duration_frames": 94252,
-      "overlap": false,
-      "utterance_id": "4217-9052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9052.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.08980370188086,
-      "end_time": 25.109515117195123,
-      "duration": 5.01971141531426,
-      "start_frame": 321436,
-      "duration_frames": 80315,
-      "overlap": false,
-      "utterance_id": "166-122789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-122789.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.65169792105424,
-      "end_time": 30.242945015414943,
-      "duration": 4.591247094360703,
-      "start_frame": 410427,
-      "duration_frames": 73459,
-      "overlap": false,
-      "utterance_id": "166-126302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-126302.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.074242319041954,
-      "end_time": 32.0,
-      "duration": 0.9257576809580463,
-      "start_frame": 497187,
-      "duration_frames": 14812,
-      "overlap": false,
-      "utterance_id": "4217-9052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9052.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 94252
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
-      "duration": 16.838049886621317,
-      "start_time": 14.827015312550623
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
-      "duration": 0.3546485260770975,
-      "start_time": 17.86296720350809
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6272/laugh/0081.wav",
-      "duration": 0.5113608425929672,
-      "start_time": 5.956522671769138,
-      "speaker_id": "6272"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/166/laugh/0099.wav",
-      "duration": 1.08,
-      "start_time": 25.30157174884636,
-      "speaker_id": "166"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/166/laugh/0002.wav",
-      "duration": 0.515669684483706,
-      "start_time": 25.10933254910983,
-      "speaker_id": "166"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4217/laugh/0027.wav",
-      "duration": 0.8379579643221702,
-      "start_time": 31.074703817021355,
-      "speaker_id": "4217"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4217/cough/0040.wav",
-      "duration": 0.7448347955791192,
-      "start_time": 30.219817847684457,
-      "speaker_id": "4217"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042163.json b/conversations/conv_042163.json
deleted file mode 100644
index 163f62d25c26b68cf87425a21aaf344728790339..0000000000000000000000000000000000000000
--- a/conversations/conv_042163.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.727651052710088,
-      "duration": 4.727651052710088,
-      "start_frame": 0,
-      "duration_frames": 75642,
-      "overlap": false,
-      "utterance_id": "543-137106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-137106.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.6575020554419275,
-      "end_time": 10.732945708513592,
-      "duration": 5.075443653071664,
-      "start_frame": 90520,
-      "duration_frames": 81207,
-      "overlap": false,
-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.005810834894831,
-      "end_time": 16.80563712483748,
-      "duration": 5.799826289942649,
-      "start_frame": 176092,
-      "duration_frames": 92797,
-      "overlap": false,
-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 81207
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.935461261681088,
-      "end_time": 22.809819040552995,
-      "duration": 5.874357778871906,
-      "start_frame": 270967,
-      "duration_frames": 93989,
-      "overlap": false,
-      "utterance_id": "543-137106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-137106.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 75642
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.200995275477176,
-      "end_time": 27.647147717929347,
-      "duration": 4.446152442452171,
-      "start_frame": 371215,
-      "duration_frames": 71138,
-      "overlap": false,
-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 174004
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.185981055416033,
-      "end_time": 32.0,
-      "duration": 3.8140189445839674,
-      "start_frame": 450975,
-      "duration_frames": 61024,
-      "overlap": false,
-      "utterance_id": "3551-7887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3551-7887.flac |",
-      "real_speaker_id": "3551",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.2984045017065564,
-      "start_time": 22.052288076122995
-    },
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
-      "duration": 0.35356009070294786,
-      "start_time": 10.22996191259254
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/543/laugh/0005.wav",
-      "duration": 1.4244603562625995,
-      "start_time": 0,
-      "speaker_id": "543"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8168/laugh/0037.wav",
-      "duration": 1.24,
-      "start_time": 10.837548270962868,
-      "speaker_id": "8168"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8168/cough/0001.wav",
-      "duration": 1.4062811552037677,
-      "start_time": 16.890327681455776,
-      "speaker_id": "8168"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/543/laugh/0075.wav",
-      "duration": 1.56,
-      "start_time": 20.70252392324062,
-      "speaker_id": "543"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3551/laugh/0091.wav",
-      "duration": 0.9986176085420215,
-      "start_time": 27.10013221017557,
-      "speaker_id": "3551"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3551/cough/0094.wav",
-      "duration": 0.574926255693015,
-      "start_time": 28.576714616024198,
-      "speaker_id": "3551"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042168.json b/conversations/conv_042168.json
deleted file mode 100644
index 7fb757d745e8f782b3cdb5cf57405e82884fd612..0000000000000000000000000000000000000000
--- a/conversations/conv_042168.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5215234120249272,
-      "duration": 3.5215234120249272,
-      "start_frame": 0,
-      "duration_frames": 56344,
-      "overlap": false,
-      "utterance_id": "6993-83607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83607.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.851547660336961,
-      "end_time": 8.07938040354523,
-      "duration": 4.2278327432082685,
-      "start_frame": 61624,
-      "duration_frames": 67645,
-      "overlap": false,
-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.488188568400545,
-      "end_time": 14.227626296028555,
-      "duration": 5.73943772762801,
-      "start_frame": 135811,
-      "duration_frames": 91831,
-      "overlap": false,
-      "utterance_id": "6993-83606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83606.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.751340973923748,
-      "end_time": 19.802907901060074,
-      "duration": 5.051566927136328,
-      "start_frame": 236021,
-      "duration_frames": 80825,
-      "overlap": false,
-      "utterance_id": "6497-234067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234067.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.288205235540072,
-      "end_time": 26.043255307397406,
-      "duration": 5.755050071857332,
-      "start_frame": 324611,
-      "duration_frames": 92080,
-      "overlap": false,
-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 67645
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.442437409332484,
-      "end_time": 30.057319488473986,
-      "duration": 3.614882079141501,
-      "start_frame": 423078,
-      "duration_frames": 57838,
-      "overlap": false,
-      "utterance_id": "6993-83606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83606.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 91831
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.671788571005386,
-      "end_time": 32.0,
-      "duration": 1.3282114289946136,
-      "start_frame": 490748,
-      "duration_frames": 21251,
-      "overlap": false,
-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 159725
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
-      "duration": 1.83578231292517,
-      "start_time": 13.03335543816813
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
-      "duration": 4.413279669571217,
-      "start_time": 12.889263538769566
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/102/cough/0083.wav",
-      "duration": 0.47834858633257593,
-      "start_time": 4.191188881161201,
-      "speaker_id": "102"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6993/laugh/0040.wav",
-      "duration": 1.266702967886876,
-      "start_time": 6.959708112354902,
-      "speaker_id": "6993"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042175.json b/conversations/conv_042175.json
deleted file mode 100644
index 1fa7584939ac4f088181018b731aee6cf507a9e0..0000000000000000000000000000000000000000
--- a/conversations/conv_042175.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.88918197961814,
-      "duration": 6.88918197961814,
-      "start_frame": 0,
-      "duration_frames": 110226,
-      "overlap": false,
-      "utterance_id": "4484-37119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-37119.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.693746917736939,
-      "end_time": 12.65898188518041,
-      "duration": 5.965234967443472,
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-      "duration_frames": 95443,
-      "overlap": true,
-      "utterance_id": "8172-281515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281515.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.86743245976676,
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-      "overlap": false,
-      "utterance_id": "4484-75922",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-75922.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 18.970747047602828,
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-      "utterance_id": "8172-281511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281511.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration": 6.300786161738159,
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-      "utterance_id": "4484-34489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-34489.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "4484"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8172/laugh/0009.wav",
-      "duration": 1.0768822041932327,
-      "start_time": 10.169660368573235,
-      "speaker_id": "8172"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4484/laugh/0031.wav",
-      "duration": 1.391480554485647,
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-      "speaker_id": "4484"
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-    {
-      "event_class": "cough",
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-      "duration": 1.0786813405916684,
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-      "speaker_id": "8172"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042179.json b/conversations/conv_042179.json
deleted file mode 100644
index 90404cef3794552567eaeec329540778efeff81b..0000000000000000000000000000000000000000
--- a/conversations/conv_042179.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1343-139681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-139681.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.797028320346998,
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-      "utterance_id": "5471-280362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-280362.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.782545864741838,
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-      "overlap": false,
-      "utterance_id": "1343-158796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158796.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.4507844751709,
-      "end_time": 23.38508448770814,
-      "duration": 4.934300012537241,
-      "start_frame": 295212,
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-      "overlap": false,
-      "utterance_id": "5471-284440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-284440.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.721278455360984,
-      "end_time": 29.972033509442028,
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-      "overlap": true,
-      "utterance_id": "7794-295955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295955.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.45035649779527,
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-      "utterance_id": "5471-284429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-284429.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_042180.json b/conversations/conv_042180.json
deleted file mode 100644
index d8725c556e178a8c39c8e9ebea376c984e83a5af..0000000000000000000000000000000000000000
--- a/conversations/conv_042180.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-27567.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 86244
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96157.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "4321-27567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-27567.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 53788
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.08460690716603,
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-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 168082
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "background_events": [
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_042187.json b/conversations/conv_042187.json
deleted file mode 100644
index de43b423b0bf03f22e2873a162613b95bed1ea64..0000000000000000000000000000000000000000
--- a/conversations/conv_042187.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4791",
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-      "real_speaker_id": "4791",
-      "position_frames": 74417
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 67654
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0005",
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-      "duration": 5.859981502083823,
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-      "utterance_id": "8015-112691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112691.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_042191.json b/conversations/conv_042191.json
deleted file mode 100644
index b0a9c11808a3d1c36d41ba9a2c50e4bd291aa130..0000000000000000000000000000000000000000
--- a/conversations/conv_042191.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.047235848240813,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
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-      "end_time": 6.928370164378195,
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-      "overlap": false,
-      "utterance_id": "114-129324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/114-129324.flac |",
-      "real_speaker_id": "114",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.367887464715913,
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
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-      "position_frames": 93934
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-      "speaker_id": "5980"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042196.json b/conversations/conv_042196.json
deleted file mode 100644
index 25aa539327962907cb1cc26f04978097d7ac2097..0000000000000000000000000000000000000000
--- a/conversations/conv_042196.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129074.flac |",
-      "real_speaker_id": "669",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145088.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "669",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1845-145088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145088.flac |",
-      "real_speaker_id": "1845",
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-      "utterance_id": "669-129074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129074.flac |",
-      "real_speaker_id": "669",
-      "position_frames": 182054
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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\ No newline at end of file
diff --git a/conversations/conv_042200.json b/conversations/conv_042200.json
deleted file mode 100644
index 94ff2e0a5008ed2c40e1cc989c0728ab5d656dc9..0000000000000000000000000000000000000000
--- a/conversations/conv_042200.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6098-57837.flac |",
-      "real_speaker_id": "6098",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/20-205.flac |",
-      "real_speaker_id": "20",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/20-205.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_042207.json b/conversations/conv_042207.json
deleted file mode 100644
index 025f121d8b2be26c534df0fed99adcaaef0e84e1..0000000000000000000000000000000000000000
--- a/conversations/conv_042207.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106367.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-153036.flac |",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-153036.flac |",
-      "real_speaker_id": "1566",
-      "position_frames": 71243
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2588-11081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-11081.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7777-106366",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_042211.json b/conversations/conv_042211.json
deleted file mode 100644
index 5798bdd0451ad7c60edfb029988420ecc8daae7a..0000000000000000000000000000000000000000
--- a/conversations/conv_042211.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4116-13265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-13265.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6853",
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-    {
-      "segment_id": "seg0002",
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-    {
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-      "event_class": "laugh",
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-      "duration": 1.1347325178933598,
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-      "speaker_id": "5463"
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-    {
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-      "duration": 1.28,
-      "start_time": 26.46829614745944,
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-      "event_class": "cough",
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-      "duration": 1.16,
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-      "speaker_id": "6853"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042216.json b/conversations/conv_042216.json
deleted file mode 100644
index da9384261a327887f6d48652cbc6d6eb498a1462..0000000000000000000000000000000000000000
--- a/conversations/conv_042216.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.64200517261412,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2792-144136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.357386149182378,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-128240.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.091621972122752,
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-      "utterance_id": "2792-144136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 74272
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.29082635644509,
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-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 50670
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.025491165379954,
-      "end_time": 30.58605191416303,
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-      "utterance_id": "2792-152929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.675902964018057,
-      "end_time": 32.0,
-      "duration": 0.32409703598194284,
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-      "utterance_id": "1392-128226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-128226.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042227.json b/conversations/conv_042227.json
deleted file mode 100644
index f77b2d90af23a29e7a7155cc2e327d4e3f72974f..0000000000000000000000000000000000000000
--- a/conversations/conv_042227.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "3959-706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
-      "real_speaker_id": "3959",
-      "position_frames": 0
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-      "real_speaker_id": "102",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161975.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 52953
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
-      "real_speaker_id": "3959",
-      "position_frames": 104956
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1923-161972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161972.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1923/laugh/0055.wav",
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-      "start_time": 31.176580475709976,
-      "speaker_id": "1923"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042231.json b/conversations/conv_042231.json
deleted file mode 100644
index c0f0d9e27306da2285f2258223aa4f9a462f9bd8..0000000000000000000000000000000000000000
--- a/conversations/conv_042231.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1049-133454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1049-133454.flac |",
-      "real_speaker_id": "1049",
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-    {
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-      "real_speaker_id": "1049",
-      "position_frames": 87321
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-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042241.json b/conversations/conv_042241.json
deleted file mode 100644
index b5d95b144991efb542a412457d750e55a4da355e..0000000000000000000000000000000000000000
--- a/conversations/conv_042241.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.76371436081438,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-233342.flac |",
-      "real_speaker_id": "6080",
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-      "segment_id": "seg0004",
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-      "start_time": 23.18408072263383,
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 87591
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.035456472520455,
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-      "utterance_id": "6080-233342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-233342.flac |",
-      "real_speaker_id": "6080",
-      "position_frames": 92715
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2514/cough/0062.wav",
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-    {
-      "event_class": "laugh",
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-      "start_time": 29.706194629532952,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2514/cough/0106.wav",
-      "duration": 1.2446911424494118,
-      "start_time": 21.876550603577332,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6080/laugh/0023.wav",
-      "duration": 1.6,
-      "start_time": 30.125716337667043,
-      "speaker_id": "6080"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042246.json b/conversations/conv_042246.json
deleted file mode 100644
index dd6361d3a5bd14a9af7ec4fcabfd8bdc74a1d904..0000000000000000000000000000000000000000
--- a/conversations/conv_042246.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.44977436804345,
-      "duration": 6.44977436804345,
-      "start_frame": 0,
-      "duration_frames": 103196,
-      "overlap": false,
-      "utterance_id": "1898-145715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145715.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.202021702744535,
-      "end_time": 13.674858495958029,
-      "duration": 6.472836793213494,
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-      "duration_frames": 103565,
-      "overlap": false,
-      "utterance_id": "1367-291931",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291931.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.260363765479125,
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-      "duration_frames": 90550,
-      "overlap": false,
-      "utterance_id": "1469-163403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-163403.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.85409765249904,
-      "end_time": 24.98860957499292,
-      "duration": 4.134511922493882,
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-      "duration_frames": 66152,
-      "overlap": false,
-      "utterance_id": "1367-291931",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291931.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 103565
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.818947280660616,
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-      "overlap": false,
-      "utterance_id": "1469-168608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-168608.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.62817858896622,
-      "end_time": 32.0,
-      "duration": 0.3718214110337783,
-      "start_frame": 506050,
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-      "overlap": false,
-      "utterance_id": "1898-145720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1898-145720.flac |",
-      "real_speaker_id": "1898",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_4.wav",
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-      "start_time": 19.310238145081964
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_042250.json b/conversations/conv_042250.json
deleted file mode 100644
index ce859331b1e14d441efa096c801d55530755262f..0000000000000000000000000000000000000000
--- a/conversations/conv_042250.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.12643693250949,
-      "duration": 6.12643693250949,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5703-47198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47198.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.569809144226222,
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-      "overlap": false,
-      "utterance_id": "1264-135033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-135033.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.671641372000485,
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-      "duration": 6.894051553998064,
-      "start_frame": 186746,
-      "duration_frames": 110304,
-      "overlap": true,
-      "utterance_id": "5703-47212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.75669873666967,
-      "end_time": 26.63522645665093,
-      "duration": 6.878527719981261,
-      "start_frame": 316107,
-      "duration_frames": 110056,
-      "overlap": false,
-      "utterance_id": "5139-30105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30105.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.772424654233035,
-      "end_time": 32.0,
-      "duration": 4.227575345766965,
-      "start_frame": 444358,
-      "duration_frames": 67641,
-      "overlap": false,
-      "utterance_id": "5703-47212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5703-47212.flac |",
-      "real_speaker_id": "5703",
-      "position_frames": 110304
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
-      "duration": 2.942011795061646,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1264/cough/0038.wav",
-      "duration": 0.96,
-      "start_time": 11.738550240601903,
-      "speaker_id": "1264"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042257.json b/conversations/conv_042257.json
deleted file mode 100644
index c49cd5a9805eaf3314502fcf0f4eb252ac687d9c..0000000000000000000000000000000000000000
--- a/conversations/conv_042257.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.527129457276386,
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-      "start_frame": 88434,
-      "duration_frames": 85498,
-      "overlap": false,
-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 83202
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 168700
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.50139134691368,
-      "end_time": 23.42649027231949,
-      "duration": 4.925098925405809,
-      "start_frame": 296022,
-      "duration_frames": 78801,
-      "overlap": false,
-      "utterance_id": "7218-80699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-80699.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.879509222196514,
-      "end_time": 28.971006733388975,
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-      "utterance_id": "147-125737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/147-125737.flac |",
-      "real_speaker_id": "147",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.784438166772496,
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-      "duration": 2.215561833227504,
-      "start_frame": 476551,
-      "duration_frames": 35448,
-      "overlap": false,
-      "utterance_id": "3744-178590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178590.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "start_time": 4.906250962494126
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7218/laugh/0079.wav",
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3744/laugh/0066.wav",
-      "duration": 1.021815359639261,
-      "start_time": 30.978184640360737,
-      "speaker_id": "3744"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042266.json b/conversations/conv_042266.json
deleted file mode 100644
index dd04da71c507df7d4aaf3a48d51d6ddb2df560a6..0000000000000000000000000000000000000000
--- a/conversations/conv_042266.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.67437773893295,
-      "duration": 6.67437773893295,
-      "start_frame": 0,
-      "duration_frames": 106790,
-      "overlap": false,
-      "utterance_id": "5220-69519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-69519.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.260469027974492,
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-      "duration_frames": 92570,
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-      "utterance_id": "4020-180289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180289.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.435560808119169,
-      "end_time": 18.872435561332303,
-      "duration": 5.436874753213133,
-      "start_frame": 214968,
-      "duration_frames": 86989,
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-      "utterance_id": "5220-69519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-69519.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 106790
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7085-2327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-2327.flac |",
-      "real_speaker_id": "7085",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "4020",
-      "position_frames": 92570
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.21195440397523,
-      "end_time": 32.0,
-      "duration": 2.7880455960247694,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-112590.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 0
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-      "start_time": 18.48388528374356,
-      "speaker_id": "7085"
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-      "event_class": "cough",
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-      "start_time": 27.7135546454637,
-      "speaker_id": "5220"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042270.json b/conversations/conv_042270.json
deleted file mode 100644
index b3a6348cf996d2baae8508e0373657fa3b0f640c..0000000000000000000000000000000000000000
--- a/conversations/conv_042270.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.39991335292876,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "7795-105407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.735662523684896,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 102589
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7009-83683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-83683.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.709183632666637,
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-      "duration_frames": 87057,
-      "overlap": false,
-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.63333724955813,
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-      "utterance_id": "7009-2331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7795-105407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 180897
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7009/cough/0015.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042282.json b/conversations/conv_042282.json
deleted file mode 100644
index eafee52d4bdda9f06a3fba91b23a906405ad79ca..0000000000000000000000000000000000000000
--- a/conversations/conv_042282.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7795-105407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
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-      "utterance_id": "7756-84187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-84187.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7756-84187.flac |",
-      "real_speaker_id": "7756",
-      "position_frames": 60728
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 165097
-    }
-  ],
-  "background_events": [
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-      "speaker_id": "7756"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042285.json b/conversations/conv_042285.json
deleted file mode 100644
index a68c8343eac7cebbf7890368eccdb71d3aa66b63..0000000000000000000000000000000000000000
--- a/conversations/conv_042285.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "4915-245690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-115688.flac |",
-      "real_speaker_id": "7786",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
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-    {
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-    {
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-      "segment_id": "seg0005",
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-      "start_time": 30.74,
-      "speaker_id": "4915"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042289.json b/conversations/conv_042289.json
deleted file mode 100644
index e10f62e824a5a8cfa2ee9555bf7056f9b9ba19ad..0000000000000000000000000000000000000000
--- a/conversations/conv_042289.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
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-    {
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-      "overlap": false,
-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 150459
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.541961065997114,
-      "end_time": 32.0,
-      "duration": 4.458038934002886,
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-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 75187
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
-      "duration": 3.8430117221358997,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.2623275541132817,
-      "start_time": 9.126020945787998,
-      "speaker_id": "2724"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042292.json b/conversations/conv_042292.json
deleted file mode 100644
index dff42894e46d2659974f6f20a5657960cebcfd6b..0000000000000000000000000000000000000000
--- a/conversations/conv_042292.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.25977415795728,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.472162941096149,
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-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.219899079357151,
-      "end_time": 11.203252536785968,
-      "duration": 4.983353457428817,
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-      "overlap": false,
-      "utterance_id": "572-96582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-96582.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.755410216282874,
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-      "utterance_id": "2074-147193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-147193.flac |",
-      "real_speaker_id": "2074",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.936791733800973,
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-      "utterance_id": "572-128861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-128861.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.902574775535125,
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-      "utterance_id": "2074-147193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-147193.flac |",
-      "real_speaker_id": "2074",
-      "position_frames": 59878
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.870565138129088,
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-      "utterance_id": "572-128861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-128861.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 63007
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.04680813752395,
-      "end_time": 31.25977415795728,
-      "duration": 1.2129660204333312,
-      "start_frame": 480748,
-      "duration_frames": 19407,
-      "overlap": true,
-      "utterance_id": "2074-159371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-159371.flac |",
-      "real_speaker_id": "2074",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Frying",
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-      "duration": 1.24,
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-      "event_class": "cough",
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-      "speaker_id": "2074"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042293.json b/conversations/conv_042293.json
deleted file mode 100644
index 9f501377b0bbcc66588bbf023a7707f9cb3cb903..0000000000000000000000000000000000000000
--- a/conversations/conv_042293.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2628-153964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153964.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.187108817702413,
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-      "real_speaker_id": "1601",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136848.flac |",
-      "real_speaker_id": "1601",
-      "position_frames": 74693
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-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.777790785012968,
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-      "duration": 2.222209214987032,
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-      "duration_frames": 35555,
-      "overlap": false,
-      "utterance_id": "6038-56778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6038/laugh/0062.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.7348915801718084,
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-      "speaker_id": "6038"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042303.json b/conversations/conv_042303.json
deleted file mode 100644
index 6656bed24119fd876b765bfb25c08ec876101d29..0000000000000000000000000000000000000000
--- a/conversations/conv_042303.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2925-162505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
-      "real_speaker_id": "2925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "7155",
-      "position_frames": 0
-    },
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-      "real_speaker_id": "7155",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.872255795808806,
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-      "utterance_id": "1054-143005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
-      "real_speaker_id": "1054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.418886183335523,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
-      "real_speaker_id": "2925",
-      "position_frames": 77449
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "2925",
-      "position_frames": 151008
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.134503054467775,
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-      "utterance_id": "1054-143005",
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-      "real_speaker_id": "1054",
-      "position_frames": 58457
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "2925"
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-    {
-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1054/cough/0080.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2925/laugh/0050.wav",
-      "duration": 1.16,
-      "start_time": 23.17722743739046,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 26.160242217071495,
-      "speaker_id": "2925"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042304.json b/conversations/conv_042304.json
deleted file mode 100644
index 04a18a4c4a688b680d7bacf45c9b5e8bf8465548..0000000000000000000000000000000000000000
--- a/conversations/conv_042304.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-32402.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_042312.json b/conversations/conv_042312.json
deleted file mode 100644
index c715b390828530f3a9403ea56aa5bd94333ca0a5..0000000000000000000000000000000000000000
--- a/conversations/conv_042312.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6574-70753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-70753.flac |",
-      "real_speaker_id": "6574",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6115-58778.flac |",
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-      "real_speaker_id": "8316",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-70753.flac |",
-      "real_speaker_id": "6574",
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042315.json b/conversations/conv_042315.json
deleted file mode 100644
index 6c39429cc29d0171558a7f3d705f59df89351562..0000000000000000000000000000000000000000
--- a/conversations/conv_042315.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042319.json b/conversations/conv_042319.json
deleted file mode 100644
index 20aa08bc5ea9df39e5c0aa6bd8e0d62b329b23bf..0000000000000000000000000000000000000000
--- a/conversations/conv_042319.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_6.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5092/cough/0107.wav",
-      "duration": 0.6504558777414522,
-      "start_time": 4.368239559293903,
-      "speaker_id": "5092"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3105/laugh/0097.wav",
-      "duration": 0.5210309232317439,
-      "start_time": 15.355169387429225,
-      "speaker_id": "3105"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3105/laugh/0045.wav",
-      "duration": 0.92,
-      "start_time": 26.92247781170725,
-      "speaker_id": "3105"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042323.json b/conversations/conv_042323.json
deleted file mode 100644
index 67d757c4b9d87604f1fe12cb38f77c7649e6ddd2..0000000000000000000000000000000000000000
--- a/conversations/conv_042323.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5304-109507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-109507.flac |",
-      "real_speaker_id": "5304",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.176643679377198,
-      "end_time": 10.039658140002338,
-      "duration": 4.86301446062514,
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-      "duration_frames": 77808,
-      "overlap": false,
-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
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-      "utterance_id": "4546-16781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.793921617754597,
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-      "utterance_id": "1250-135782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135782.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.46141948503434,
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-      "utterance_id": "4546-16781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 50382
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-109507.flac |",
-      "real_speaker_id": "5304",
-      "position_frames": 65853
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.771867612165767,
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-      "duration": 1.2281323878342327,
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-      "duration_frames": 19650,
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-      "utterance_id": "4546-16781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 105320
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-      "start_time": 31.438798486353285,
-      "speaker_id": "4546"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042328.json b/conversations/conv_042328.json
deleted file mode 100644
index 403d2e478cc8f033480d5c794e887f0e106e1560..0000000000000000000000000000000000000000
--- a/conversations/conv_042328.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2262-141717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141717.flac |",
-      "real_speaker_id": "2262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.533082938029256,
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-      "utterance_id": "8410-278220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8410-278220.flac |",
-      "real_speaker_id": "8410",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.518274591549954,
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-      "overlap": false,
-      "utterance_id": "2262-141714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141714.flac |",
-      "real_speaker_id": "2262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.130406646261534,
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-      "utterance_id": "8410-278220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8410-278220.flac |",
-      "real_speaker_id": "8410",
-      "position_frames": 65452
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.196480704827177,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129597.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.460407102530535,
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-      "utterance_id": "718-129596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129596.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-      "start_time": 14.394850033287387
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_042335.json b/conversations/conv_042335.json
deleted file mode 100644
index cf6287d62c97bbd1dcfd320da660475399546a32..0000000000000000000000000000000000000000
--- a/conversations/conv_042335.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2133-2145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-2145.flac |",
-      "real_speaker_id": "2133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-2148.flac |",
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-      "real_speaker_id": "8825",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-2148.flac |",
-      "real_speaker_id": "2133",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-    {
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-      "position_frames": 70990
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_042338.json b/conversations/conv_042338.json
deleted file mode 100644
index 68b2b12efa2d9143c826d60e5a089f9df329a346..0000000000000000000000000000000000000000
--- a/conversations/conv_042338.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.480220916658542,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
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-    {
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-    {
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-  "foreground_events": [
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-      "speaker_id": "5456"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 21.145196100510223,
-      "speaker_id": "2056"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5456/laugh/0111.wav",
-      "duration": 1.08,
-      "start_time": 29.867030157191273,
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-      "event_class": "cough",
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-      "duration": 0.4025710508340127,
-      "start_time": 28.34092190861885,
-      "speaker_id": "5456"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042339.json b/conversations/conv_042339.json
deleted file mode 100644
index 0ce3672a9dd571dd287db359cfbd46d7c0cd9acf..0000000000000000000000000000000000000000
--- a/conversations/conv_042339.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.232018385418728,
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-      "overlap": false,
-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.813541669259158,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3319-171003.flac |",
-      "real_speaker_id": "3319",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8295-281339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-281339.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.983694514545785,
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-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
-      "position_frames": 99712
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.646359361030328,
-      "end_time": 29.64815251706065,
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-      "utterance_id": "8295-281321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-281321.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.943725941481667,
-      "end_time": 32.0,
-      "duration": 2.0562740585183334,
-      "start_frame": 479099,
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-      "overlap": false,
-      "utterance_id": "8295-281321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-281321.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 96028
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042342.json b/conversations/conv_042342.json
deleted file mode 100644
index ae6ac74e02cecbdec8d521eac198f8c10199f985..0000000000000000000000000000000000000000
--- a/conversations/conv_042342.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4535-279852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279852.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
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-      "real_speaker_id": "4535",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279849.flac |",
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-      "position_frames": 60527
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "4535-279856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279856.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "445-123857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/445-123857.flac |",
-      "real_speaker_id": "445",
-      "position_frames": 0
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-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042345.json b/conversations/conv_042345.json
deleted file mode 100644
index 515b12da9929cca5ae7cbd8d48e5d903215e63d8..0000000000000000000000000000000000000000
--- a/conversations/conv_042345.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295756.flac |",
-      "real_speaker_id": "8635",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
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-      "position_frames": 126451
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-    {
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_042353.json b/conversations/conv_042353.json
deleted file mode 100644
index 3f6ba405f2fd3bc2df8503232eb643ec73e094c2..0000000000000000000000000000000000000000
--- a/conversations/conv_042353.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "98-121658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-121658.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_042354.json b/conversations/conv_042354.json
deleted file mode 100644
index 8e267f99cf5cdfe54f778a851f7d93e325e9b1b4..0000000000000000000000000000000000000000
--- a/conversations/conv_042354.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.42857142857142855,
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-      "utterance_id": "128-134883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_042358.json b/conversations/conv_042358.json
deleted file mode 100644
index ae5528f989929e4d9f8348e0322dd9fa0893fe03..0000000000000000000000000000000000000000
--- a/conversations/conv_042358.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112691.flac |",
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-    {
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-      "real_speaker_id": "7795",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042362.json b/conversations/conv_042362.json
deleted file mode 100644
index 248f5b7e460f5549b39e042518422aa97ffeb2dc..0000000000000000000000000000000000000000
--- a/conversations/conv_042362.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_042374.json b/conversations/conv_042374.json
deleted file mode 100644
index ae2774b84dbbb084e0ca0ea3f864a9c2a7cc169f..0000000000000000000000000000000000000000
--- a/conversations/conv_042374.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_042378.json b/conversations/conv_042378.json
deleted file mode 100644
index 299293dc1aebadcc2695b6eb7c50fe7088e30fec..0000000000000000000000000000000000000000
--- a/conversations/conv_042378.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "real_speaker_id": "742",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1931-156647.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-60544.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1931-156647.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_042380.json b/conversations/conv_042380.json
deleted file mode 100644
index d56c184396d5d3b3b0419d23f8dceaf591e99d1b..0000000000000000000000000000000000000000
--- a/conversations/conv_042380.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.460140914173373,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "7522",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "3567",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042381.json b/conversations/conv_042381.json
deleted file mode 100644
index 14f0cac111c76c252386f99de3a03de2c34fd212..0000000000000000000000000000000000000000
--- a/conversations/conv_042381.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3757-134142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134142.flac |",
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-      "real_speaker_id": "3757",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8479-276730",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042397.json b/conversations/conv_042397.json
deleted file mode 100644
index 60c13c814cc0bc961a54297123bae8c2f4c13b0f..0000000000000000000000000000000000000000
--- a/conversations/conv_042397.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1323-138617",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8413-284515.flac |",
-      "real_speaker_id": "8413",
-      "position_frames": 60471
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-      "segment_id": "seg0004",
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-      "utterance_id": "1323-138548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138548.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 60751
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.537484736017827,
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-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_042401.json b/conversations/conv_042401.json
deleted file mode 100644
index 964c3ea2b9333c0cabbf8178ea6863a98c1ea19e..0000000000000000000000000000000000000000
--- a/conversations/conv_042401.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8272-279789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 6.490219090921723,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3545.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4595-45217.flac |",
-      "real_speaker_id": "4595",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3547.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_042416.json b/conversations/conv_042416.json
deleted file mode 100644
index cf2cec1ea4be231aeb5a048e8d29bfc5482d9b80..0000000000000000000000000000000000000000
--- a/conversations/conv_042416.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042417.json b/conversations/conv_042417.json
deleted file mode 100644
index 295dbc5e8288999c0f0a2af4d3ed96be6f8dd682..0000000000000000000000000000000000000000
--- a/conversations/conv_042417.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-70995.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131228.flac |",
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-      "segment_id": "seg0002",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6625/laugh/0007.wav",
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-      "start_time": 12.644753520617208,
-      "speaker_id": "6625"
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-      "speaker_id": "6625"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6625/cough/0079.wav",
-      "duration": 0.5858144868823849,
-      "start_time": 23.450040983504437,
-      "speaker_id": "6625"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/cough/0067.wav",
-      "duration": 0.42479259260512925,
-      "start_time": 31.57520740739487,
-      "speaker_id": "4078"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042421.json b/conversations/conv_042421.json
deleted file mode 100644
index 1d36c9305e84083a4ee949373f4c23ee3ddd1209..0000000000000000000000000000000000000000
--- a/conversations/conv_042421.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.740811721338556,
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-      "overlap": false,
-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.165205159256963,
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-      "duration": 5.945025974859374,
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-      "duration_frames": 95120,
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-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "duration": 5.8254774431632335,
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-      "duration_frames": 93207,
-      "overlap": false,
-      "utterance_id": "4856-12103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4856-12103.flac |",
-      "real_speaker_id": "4856",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.914632845635843,
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-      "duration": 4.674998336368472,
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-      "overlap": false,
-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 75852
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.06361353563869,
-      "end_time": 27.157995761301656,
-      "duration": 4.094382225662964,
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-      "duration_frames": 65510,
-      "overlap": false,
-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 95120
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.369475111169855,
-      "end_time": 32.0,
-      "duration": 4.630524888830145,
-      "start_frame": 437911,
-      "duration_frames": 74088,
-      "overlap": false,
-      "utterance_id": "4841-26660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26660.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
-      "duration": 1.1560750414173682,
-      "start_time": 14.21463536482071
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4841/laugh/0071.wav",
-      "duration": 1.035694735866635,
-      "start_time": 0,
-      "speaker_id": "4841"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7391/laugh/0066.wav",
-      "duration": 1.08,
-      "start_time": 3.8466156416636874,
-      "speaker_id": "7391"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7391/cough/0029.wav",
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-      "speaker_id": "7391"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4841/cough/0005.wav",
-      "duration": 0.5536375328723335,
-      "start_time": 31.446362467127667,
-      "speaker_id": "4841"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042437.json b/conversations/conv_042437.json
deleted file mode 100644
index 627a475dacf54275d654726b17ea2201cf9bb850..0000000000000000000000000000000000000000
--- a/conversations/conv_042437.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.368403522314937,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.129549429727705,
-      "end_time": 9.968222999068,
-      "duration": 3.838673569340296,
-      "start_frame": 98072,
-      "duration_frames": 61418,
-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.389970794247759,
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-      "overlap": false,
-      "utterance_id": "6019-3185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.168759840862698,
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-      "duration_frames": 52562,
-      "overlap": true,
-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 85894
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.621722051251343,
-      "end_time": 22.950078099974103,
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-      "overlap": false,
-      "utterance_id": "6019-3185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
-      "position_frames": 55931
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.134164887268184,
-      "end_time": 27.80396156741735,
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-      "start_frame": 370146,
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-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 61418
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.65138746542864,
-      "end_time": 32.0,
-      "duration": 3.348612534571359,
-      "start_frame": 458422,
-      "duration_frames": 53577,
-      "overlap": false,
-      "utterance_id": "876-126411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 136134
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 15.728601915811634,
-      "start_time": 13.144624319203842
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-    {
-      "event_class": "Dishes",
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-      "duration": 1.7548299319727891,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.36,
-      "start_time": 5.411305011554854,
-      "speaker_id": "1289"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/876/laugh/0018.wav",
-      "duration": 0.9083131954467456,
-      "start_time": 22.09744277503454,
-      "speaker_id": "876"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/876/laugh/0076.wav",
-      "duration": 0.99601093068614,
-      "start_time": 27.528088962798986,
-      "speaker_id": "876"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042440.json b/conversations/conv_042440.json
deleted file mode 100644
index 9212b573d22e3456667652f582ddff39ab17eac4..0000000000000000000000000000000000000000
--- a/conversations/conv_042440.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.368734734366381,
-      "duration": 4.368734734366381,
-      "start_frame": 0,
-      "duration_frames": 69899,
-      "overlap": false,
-      "utterance_id": "3290-179163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-179163.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.393630720357635,
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-      "duration": 5.527430258293558,
-      "start_frame": 86298,
-      "duration_frames": 88438,
-      "overlap": false,
-      "utterance_id": "731-366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-366.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.183581612354395,
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-      "duration": 4.412885456077575,
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-      "duration_frames": 70606,
-      "overlap": false,
-      "utterance_id": "1963-142393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1963-142393.flac |",
-      "real_speaker_id": "1963",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.1814106874753,
-      "end_time": 21.31192788191589,
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-      "start_frame": 258902,
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-      "overlap": false,
-      "utterance_id": "3290-170207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-170207.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.192329039337956,
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-      "overlap": false,
-      "utterance_id": "3290-179163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3290-179163.flac |",
-      "real_speaker_id": "3290",
-      "position_frames": 69899
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.455408509546682,
-      "end_time": 32.0,
-      "duration": 2.5445914904533176,
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-      "duration_frames": 40713,
-      "overlap": false,
-      "utterance_id": "1963-147036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1963-147036.flac |",
-      "real_speaker_id": "1963",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
-      "duration": 1.7417913832199547,
-      "start_time": 6.697994817090895
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "731"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1963/laugh/0118.wav",
-      "duration": 1.04,
-      "start_time": 15.771500054624404,
-      "speaker_id": "1963"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1963/cough/0008.wav",
-      "duration": 1.32,
-      "start_time": 11.311920640977009,
-      "speaker_id": "1963"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3290/laugh/0113.wav",
-      "duration": 1.56,
-      "start_time": 14.361745852288854,
-      "speaker_id": "3290"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1963/laugh/0072.wav",
-      "duration": 1.0,
-      "start_time": 28.3243719360477,
-      "speaker_id": "1963"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1963/cough/0055.wav",
-      "duration": 0.5295646642704446,
-      "start_time": 30.539379211725485,
-      "speaker_id": "1963"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042441.json b/conversations/conv_042441.json
deleted file mode 100644
index 4a58b28300ea196cf6a2c833ef53eff3703407d8..0000000000000000000000000000000000000000
--- a/conversations/conv_042441.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.293475945284428,
-      "duration": 6.293475945284428,
-      "start_frame": 0,
-      "duration_frames": 100695,
-      "overlap": false,
-      "utterance_id": "8208-256239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256239.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.001638454905309,
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-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "8527-281131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "start_frame": 336665,
-      "duration_frames": 94397,
-      "overlap": false,
-      "utterance_id": "8208-256239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256239.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 100695
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.93208924046207,
-      "end_time": 32.0,
-      "duration": 4.067910759537931,
-      "start_frame": 446913,
-      "duration_frames": 65086,
-      "overlap": false,
-      "utterance_id": "8527-281131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 104494
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8527/laugh/0036.wav",
-      "duration": 0.76474572122413,
-      "start_time": 11.083448211516846,
-      "speaker_id": "8527"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8527/laugh/0045.wav",
-      "duration": 0.9303601939114119,
-      "start_time": 16.386093253448312,
-      "speaker_id": "8527"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8208/laugh/0100.wav",
-      "duration": 1.16,
-      "start_time": 19.718870415115372,
-      "speaker_id": "8208"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8527/laugh/0098.wav",
-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "8527"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042456.json b/conversations/conv_042456.json
deleted file mode 100644
index 8a33f474579780eb9b819ac9b9e14532b9368bdc..0000000000000000000000000000000000000000
--- a/conversations/conv_042456.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.95068465566399,
-      "duration": 5.95068465566399,
-      "start_frame": 0,
-      "duration_frames": 95210,
-      "overlap": false,
-      "utterance_id": "3196-151981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.601183663248524,
-      "end_time": 12.349542013450915,
-      "duration": 5.748358350202389,
-      "start_frame": 105618,
-      "duration_frames": 91973,
-      "overlap": false,
-      "utterance_id": "8808-283205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-283205.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.541702336655177,
-      "end_time": 19.252296654794335,
-      "duration": 6.710594318139157,
-      "start_frame": 200667,
-      "duration_frames": 107369,
-      "overlap": true,
-      "utterance_id": "3373-174981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174981.flac |",
-      "real_speaker_id": "3373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.334401377059855,
-      "end_time": 24.7348148949155,
-      "duration": 4.400413517855643,
-      "start_frame": 325350,
-      "duration_frames": 70406,
-      "overlap": false,
-      "utterance_id": "8808-295459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-295459.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.230369159669856,
-      "end_time": 32.0,
-      "duration": 6.769630840330144,
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-      "duration_frames": 108314,
-      "overlap": false,
-      "utterance_id": "3373-174983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174983.flac |",
-      "real_speaker_id": "3373",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
-      "duration": 1.7517687074829933,
-      "start_time": 8.906309439066428
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8808/laugh/0080.wav",
-      "duration": 0.550232830502756,
-      "start_time": 10.234132918176034,
-      "speaker_id": "8808"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3373/laugh/0011.wav",
-      "duration": 1.38,
-      "start_time": 14.893725414448644,
-      "speaker_id": "3373"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042460.json b/conversations/conv_042460.json
deleted file mode 100644
index 5cec51f0251001b472525fb84e772aaf6ec74ffe..0000000000000000000000000000000000000000
--- a/conversations/conv_042460.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.300281774649786,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.98777938924147,
-      "duration": 5.98777938924147,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "9022-282357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.271855879729719,
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-      "duration": 6.523387937339833,
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-      "overlap": false,
-      "utterance_id": "4278-13269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-13269.flac |",
-      "real_speaker_id": "4278",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.60970717177953,
-      "end_time": 19.87905074396678,
-      "duration": 6.269343572187248,
-      "start_frame": 217755,
-      "duration_frames": 100309,
-      "overlap": false,
-      "utterance_id": "4278-187018",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-187018.flac |",
-      "real_speaker_id": "4278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.983536208041706,
-      "end_time": 24.745123756803686,
-      "duration": 4.7615875487619785,
-      "start_frame": 319736,
-      "duration_frames": 76185,
-      "overlap": true,
-      "utterance_id": "201-127786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.925991998199862,
-      "end_time": 30.300281774649786,
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-      "start_frame": 414815,
-      "duration_frames": 69988,
-      "overlap": false,
-      "utterance_id": "201-127786",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-127786.flac |",
-      "real_speaker_id": "201",
-      "position_frames": 76185
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-      "start_time": 4.102741917280333
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-      "start_time": 18.28676686993588
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/201/laugh/0012.wav",
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-      "start_time": 29.34454424920544,
-      "speaker_id": "201"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042476.json b/conversations/conv_042476.json
deleted file mode 100644
index 8aa8d72c3e68e4d10eb52973c4190e21de830f7e..0000000000000000000000000000000000000000
--- a/conversations/conv_042476.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7320-93280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-93280.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.229001068512606,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-64577.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.442734114595517,
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-      "duration": 5.925373204309426,
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-      "duration_frames": 94805,
-      "overlap": false,
-      "utterance_id": "7320-93280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-93280.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 57553
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.987128544905875,
-      "end_time": 18.54622076972096,
-      "duration": 3.5590922248150854,
-      "start_frame": 239794,
-      "duration_frames": 56945,
-      "overlap": false,
-      "utterance_id": "7376-64577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-64577.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 64208
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.704114965749525,
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-      "duration_frames": 79353,
-      "overlap": false,
-      "utterance_id": "7320-93280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-93280.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 152358
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.89659186081696,
-      "end_time": 28.06293657834219,
-      "duration": 3.1663447175252277,
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-      "duration_frames": 50661,
-      "overlap": false,
-      "utterance_id": "7376-96150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.418174682334186,
-      "end_time": 32.0,
-      "duration": 3.581825317665814,
-      "start_frame": 454690,
-      "duration_frames": 57309,
-      "overlap": false,
-      "utterance_id": "7320-287379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-287379.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7376/cough/0133.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7320/laugh/0066.wav",
-      "duration": 1.24,
-      "start_time": 30.445466349353488,
-      "speaker_id": "7320"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042483.json b/conversations/conv_042483.json
deleted file mode 100644
index d2fa0291a2ddc3dae5b93bc34f4aabe65fefdd48..0000000000000000000000000000000000000000
--- a/conversations/conv_042483.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.008675449023799,
-      "duration": 3.008675449023799,
-      "start_frame": 0,
-      "duration_frames": 48138,
-      "overlap": false,
-      "utterance_id": "1246-124548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-124548.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.449703353955521,
-      "end_time": 7.283658087748506,
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-      "duration_frames": 61343,
-      "overlap": false,
-      "utterance_id": "7389-292563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-292563.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 7.518694985643215,
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-      "duration_frames": 88340,
-      "overlap": false,
-      "utterance_id": "548-126961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.24195540481583,
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-      "utterance_id": "1246-124548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1246-124548.flac |",
-      "real_speaker_id": "1246",
-      "position_frames": 48138
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "overlap": false,
-      "utterance_id": "548-126959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126959.flac |",
-      "real_speaker_id": "548",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "start_time": 1.526214115675513
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/548/laugh/0105.wav",
-      "duration": 1.3155840443656928,
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-      "speaker_id": "548"
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-    {
-      "event_class": "cough",
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-      "start_time": 6.379580522676815,
-      "speaker_id": "548"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7389/laugh/0086.wav",
-      "duration": 1.1,
-      "start_time": 28.39942453512612,
-      "speaker_id": "7389"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/548/cough/0095.wav",
-      "duration": 0.6662827532773639,
-      "start_time": 31.333717246722635,
-      "speaker_id": "548"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042484.json b/conversations/conv_042484.json
deleted file mode 100644
index dd32f073c2be7ee13a1e91eabf5319e227d5e3ac..0000000000000000000000000000000000000000
--- a/conversations/conv_042484.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5682-32875",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32875.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.968981318485872,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32876.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.1670534667843,
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-      "duration": 3.614757401023686,
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-      "duration_frames": 57836,
-      "overlap": false,
-      "utterance_id": "5682-32875",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32875.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 63440
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "1374-133833",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1374-133833.flac |",
-      "real_speaker_id": "1374",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.253355230840587,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32877.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.34608531048473,
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-      "utterance_id": "2246-131710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2246-131710.flac |",
-      "real_speaker_id": "2246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.694558652604968,
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-      "duration": 0.3054413473950319,
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-      "overlap": false,
-      "utterance_id": "5682-32877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32877.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 50260
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.08,
-      "start_time": 28.467370774090398,
-      "speaker_id": "2246"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042492.json b/conversations/conv_042492.json
deleted file mode 100644
index c56e181282613b1126f86d0ddaa3fbe7ca4df8c1..0000000000000000000000000000000000000000
--- a/conversations/conv_042492.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.55546545818924,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5337-37090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
-      "real_speaker_id": "5337",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.5746905594631135,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128127.flac |",
-      "real_speaker_id": "1757",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-12149.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
-      "real_speaker_id": "5337",
-      "position_frames": 70629
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "duration": 3.260296712703272,
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-      "utterance_id": "5337-37090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
-      "real_speaker_id": "5337",
-      "position_frames": 151746
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.10364029295771,
-      "end_time": 31.55546545818924,
-      "duration": 5.451825165231531,
-      "start_frame": 417658,
-      "duration_frames": 87229,
-      "overlap": false,
-      "utterance_id": "1757-128127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1757-128127.flac |",
-      "real_speaker_id": "1757",
-      "position_frames": 85298
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5337/cough/0067.wav",
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-      "start_time": 4.577426747064174,
-      "speaker_id": "5337"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3885/laugh/0136.wav",
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-    {
-      "event_class": "cough",
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-      "start_time": 25.806010016131367,
-      "speaker_id": "5337"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042495.json b/conversations/conv_042495.json
deleted file mode 100644
index f3811104b063838fb25bdaea772b4e63010edcbc..0000000000000000000000000000000000000000
--- a/conversations/conv_042495.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6836-76549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-76549.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
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-      "real_speaker_id": "7320",
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-    {
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-      "utterance_id": "6836-61803",
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-      "real_speaker_id": "6836",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6836",
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-    {
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-      "real_speaker_id": "7320",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.952913685971904,
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-      "duration_frames": 78574,
-      "overlap": true,
-      "utterance_id": "6836-76549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-76549.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 154624
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.359019063817385,
-      "end_time": 32.0,
-      "duration": 0.6409809361826149,
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-      "utterance_id": "7320-93280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-93280.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 70051
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6836/laugh/0041.wav",
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-      "start_time": 0.9867882928936874,
-      "speaker_id": "6836"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042499.json b/conversations/conv_042499.json
deleted file mode 100644
index aa737603d2bc9f1a58723a8b7ad2cf72bcdaa0ff..0000000000000000000000000000000000000000
--- a/conversations/conv_042499.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.52106917201882,
-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_042504.json b/conversations/conv_042504.json
deleted file mode 100644
index 12d497fb0fee5f70cf7d8f94148e2739cf4736cb..0000000000000000000000000000000000000000
--- a/conversations/conv_042504.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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\ No newline at end of file
diff --git a/conversations/conv_042505.json b/conversations/conv_042505.json
deleted file mode 100644
index e0d3b31958e14768e281a31a64c9c966d4c9b696..0000000000000000000000000000000000000000
--- a/conversations/conv_042505.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_042509.json b/conversations/conv_042509.json
deleted file mode 100644
index 0713b4723c1ca0b5b4a3cb53886c0e2e51ae8c2f..0000000000000000000000000000000000000000
--- a/conversations/conv_042509.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "start_time": 18.0753766482485,
-      "speaker_id": "6167"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042513.json b/conversations/conv_042513.json
deleted file mode 100644
index c73678b329e2e2dcae84a6754ba07e3786f5007d..0000000000000000000000000000000000000000
--- a/conversations/conv_042513.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.743890443695957,
-      "duration": 4.743890443695957,
-      "start_frame": 0,
-      "duration_frames": 75902,
-      "overlap": false,
-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.3915868627748225,
-      "end_time": 11.19406643282764,
-      "duration": 5.802479570052818,
-      "start_frame": 86265,
-      "duration_frames": 92839,
-      "overlap": false,
-      "utterance_id": "2607-87140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-87140.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.891604015626854,
-      "end_time": 16.680957008683833,
-      "duration": 4.789352993056981,
-      "start_frame": 190265,
-      "duration_frames": 76629,
-      "overlap": false,
-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 75902
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.873600503563303,
-      "end_time": 23.020911874055482,
-      "duration": 6.14731137049218,
-      "start_frame": 269977,
-      "duration_frames": 98356,
-      "overlap": false,
-      "utterance_id": "2607-87140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-87140.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 92839
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.65538664504669,
-      "end_time": 26.66225010563052,
-      "duration": 3.006863460583829,
-      "start_frame": 378486,
-      "duration_frames": 48109,
-      "overlap": false,
-      "utterance_id": "1280-135136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.897380647507166,
-      "end_time": 31.220065858137687,
-      "duration": 4.322685210630521,
-      "start_frame": 430358,
-      "duration_frames": 69162,
-      "overlap": false,
-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 152531
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.50565169855237,
-      "end_time": 32.0,
-      "duration": 0.49434830144763,
-      "start_frame": 504090,
-      "duration_frames": 7909,
-      "overlap": false,
-      "utterance_id": "2607-177749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177749.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
-      "duration": 3.035548858030015,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
-      "duration": 0.837891156462585,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6945/laugh/0115.wav",
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-      "start_time": 4.862517770092247,
-      "speaker_id": "6945"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/cough/0001.wav",
-      "duration": 1.1866572053413655,
-      "start_time": 11.265292201597997,
-      "speaker_id": "2607"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6945/cough/0050.wav",
-      "duration": 0.487387442902414,
-      "start_time": 16.108688149966618,
-      "speaker_id": "6945"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/laugh/0019.wav",
-      "duration": 0.8482529125391083,
-      "start_time": 30.604407059621654,
-      "speaker_id": "2607"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2607/cough/0037.wav",
-      "duration": 1.2722509918138099,
-      "start_time": 30.095312223101548,
-      "speaker_id": "2607"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042525.json b/conversations/conv_042525.json
deleted file mode 100644
index 3ce5bfa0b50cd822367213a726cf4d1febf112f3..0000000000000000000000000000000000000000
--- a/conversations/conv_042525.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.776190217547178,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.025342607553109,
-      "duration": 5.025342607553109,
-      "start_frame": 0,
-      "duration_frames": 80405,
-      "overlap": false,
-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.911368916596607,
-      "end_time": 10.51060217138539,
-      "duration": 5.599233254788784,
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-      "duration_frames": 89587,
-      "overlap": true,
-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 80405
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.626270958579866,
-      "end_time": 16.71766081872465,
-      "duration": 5.091389860144783,
-      "start_frame": 186020,
-      "duration_frames": 81462,
-      "overlap": false,
-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.288250235775084,
-      "end_time": 23.723908982424383,
-      "duration": 6.435658746649301,
-      "start_frame": 276612,
-      "duration_frames": 102970,
-      "overlap": false,
-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 169992
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.05478564491591,
-      "end_time": 30.776190217547178,
-      "duration": 6.721404572631268,
-      "start_frame": 384876,
-      "duration_frames": 107542,
-      "overlap": true,
-      "utterance_id": "3180-138043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 272962
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
-      "duration": 4.978939725993547,
-      "start_time": 7.812944252312519
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3180/laugh/0026.wav",
-      "duration": 1.24,
-      "start_time": 3.4457016344795477,
-      "speaker_id": "3180"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3180/cough/0010.wav",
-      "duration": 0.5801587483471955,
-      "start_time": 25.920482250956475,
-      "speaker_id": "3180"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042529.json b/conversations/conv_042529.json
deleted file mode 100644
index e354bdf21a562b8e8268144deac382bb4c4445bf..0000000000000000000000000000000000000000
--- a/conversations/conv_042529.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.43451199417428,
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-      "start_frame": 0,
-      "duration_frames": 54952,
-      "overlap": false,
-      "utterance_id": "2751-142363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.5612600222313797,
-      "end_time": 8.64255372268783,
-      "duration": 5.081293700456452,
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-      "overlap": false,
-      "utterance_id": "188-136483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-136483.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.28561894928175,
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-      "duration_frames": 100511,
-      "overlap": false,
-      "utterance_id": "2751-142363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 54952
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.321054121424048,
-      "end_time": 20.7866701161836,
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-      "utterance_id": "188-141613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-141613.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2204-131732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
-      "real_speaker_id": "2204",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.563610844006497,
-      "end_time": 32.0,
-      "duration": 4.436389155993503,
-      "start_frame": 441017,
-      "duration_frames": 70982,
-      "overlap": false,
-      "utterance_id": "188-135249",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-135249.flac |",
-      "real_speaker_id": "188",
-      "position_frames": 0
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/188/laugh/0060.wav",
-      "duration": 0.9035896888726587,
-      "start_time": 20.957504152163487,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/188/cough/0069.wav",
-      "duration": 1.1059245036672514,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/188/cough/0060.wav",
-      "duration": 0.7217540579744945,
-      "start_time": 26.803080995577027,
-      "speaker_id": "188"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042533.json b/conversations/conv_042533.json
deleted file mode 100644
index e7d8326c42c10a41db3dfad64ef9d6322b089173..0000000000000000000000000000000000000000
--- a/conversations/conv_042533.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.106255985036147,
-      "duration": 6.106255985036147,
-      "start_frame": 0,
-      "duration_frames": 97700,
-      "overlap": false,
-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.2836518160887955,
-      "end_time": 12.546301818324684,
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-      "overlap": false,
-      "utterance_id": "1058-131113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.67027046731519,
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-      "duration": 6.780962872788563,
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-      "duration_frames": 108495,
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-      "utterance_id": "711-187464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/711-187464.flac |",
-      "real_speaker_id": "711",
-      "position_frames": 97700
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.817054506175023,
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-      "utterance_id": "2448-163517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163517.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "2448",
-      "position_frames": 52712
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
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-      "speaker_id": "2448"
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 0.883560176232258,
-      "start_time": 27.145692093736056,
-      "speaker_id": "711"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042538.json b/conversations/conv_042538.json
deleted file mode 100644
index edff0d14a59bb5180fca99f148d3aadfa7add597..0000000000000000000000000000000000000000
--- a/conversations/conv_042538.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7126-59175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59175.flac |",
-      "real_speaker_id": "7126",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292252.flac |",
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-      "position_frames": 0
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-      "start_time": 10.456653201515904,
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-      "utterance_id": "6696-73296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73296.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292253.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "7126-59175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7126-59175.flac |",
-      "real_speaker_id": "7126",
-      "position_frames": 65129
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.692763216578044,
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-      "utterance_id": "6696-68773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-68773.flac |",
-      "real_speaker_id": "6696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.210592139963467,
-      "end_time": 32.0,
-      "duration": 0.7894078600365333,
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-      "utterance_id": "6696-73296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73296.flac |",
-      "real_speaker_id": "6696",
-      "position_frames": 74328
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042544.json b/conversations/conv_042544.json
deleted file mode 100644
index 50a9ccf2529975926b8460417588fc43be34953c..0000000000000000000000000000000000000000
--- a/conversations/conv_042544.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 91057
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-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "1849-144965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-144965.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.00338897486308,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3068.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 94654
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.832767560887099,
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-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 164960
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1828"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042548.json b/conversations/conv_042548.json
deleted file mode 100644
index a20d8577b687896720285a2505576a7e00d818ad..0000000000000000000000000000000000000000
--- a/conversations/conv_042548.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.998462859230173,
-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
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-      "real_speaker_id": "2943",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171001.flac |",
-      "real_speaker_id": "2943",
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-      "segment_id": "seg0004",
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-      "segment_id": "seg0006",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042552.json b/conversations/conv_042552.json
deleted file mode 100644
index ba31bbb54da0b589a43f79c8c5af2e68d6d48922..0000000000000000000000000000000000000000
--- a/conversations/conv_042552.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3551-7884.flac |",
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-      "position_frames": 0
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-    {
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-      "position_frames": 89519
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3551-7894.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042553.json b/conversations/conv_042553.json
deleted file mode 100644
index ce528f25c18212f23bf1b746a98782be9c2cb6af..0000000000000000000000000000000000000000
--- a/conversations/conv_042553.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2512-157480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2512-157480.flac |",
-      "real_speaker_id": "2512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.917255787106777,
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-      "utterance_id": "2512-157480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2512-157480.flac |",
-      "real_speaker_id": "2512",
-      "position_frames": 82723
-    },
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-      "utterance_id": "6367-74004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-74004.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.201515427045152,
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-      "utterance_id": "476-134312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/476-134312.flac |",
-      "real_speaker_id": "476",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.054543782694438,
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-      "utterance_id": "6367-74004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-74004.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 107236
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042564.json b/conversations/conv_042564.json
deleted file mode 100644
index 47aff674a9639ab6ba407681102a50cfef44317e..0000000000000000000000000000000000000000
--- a/conversations/conv_042564.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "8675-295195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-295195.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
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-      "utterance_id": "8675-292352",
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-      "real_speaker_id": "8675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 110224
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2204-131732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2204-131732.flac |",
-      "real_speaker_id": "2204",
-      "position_frames": 72063
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 1.479705443500201,
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-      "overlap": false,
-      "utterance_id": "8500-258286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258286.flac |",
-      "real_speaker_id": "8500",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2204/cough/0004.wav",
-      "duration": 0.8931785859406352,
-      "start_time": 24.311148715812795,
-      "speaker_id": "2204"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.82,
-      "start_time": 28.60810084186427,
-      "speaker_id": "8500"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042568.json b/conversations/conv_042568.json
deleted file mode 100644
index 6797f63ab192a33e5c5f37f01483df602ff65df1..0000000000000000000000000000000000000000
--- a/conversations/conv_042568.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "1474-128276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128276.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.484368809656536,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-220956.flac |",
-      "real_speaker_id": "1618",
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-      "utterance_id": "5319-84357",
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-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.183327361397193,
-      "end_time": 23.22279101573021,
-      "duration": 5.039463654333018,
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-      "overlap": true,
-      "utterance_id": "1474-128275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-128275.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.292742987951176,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1618-220956.flac |",
-      "real_speaker_id": "1618",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5319-64075",
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-      "real_speaker_id": "5319",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
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-      "duration": 2.451800996791581,
-      "start_time": 9.156886198168994
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_042572.json b/conversations/conv_042572.json
deleted file mode 100644
index 0dec8009496a90db356ba28761c0e899e5be990b..0000000000000000000000000000000000000000
--- a/conversations/conv_042572.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74798.flac |",
-      "real_speaker_id": "6763",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "7198"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042579.json b/conversations/conv_042579.json
deleted file mode 100644
index 4fe3673a7893fe1899c0500e0a7bfe874c4b2526..0000000000000000000000000000000000000000
--- a/conversations/conv_042579.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.881036231593697,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7988-113323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-113323.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.1277723433451134,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-113323.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 99192
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.137305190473995,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 94501
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.435937227334065,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 199592
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
-      "duration": 2.0470748299319728,
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-    {
-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042580.json b/conversations/conv_042580.json
deleted file mode 100644
index fbfdb4b294d12cc5e07ef5b2f3bfb62ab32db7a0..0000000000000000000000000000000000000000
--- a/conversations/conv_042580.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 110598
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "426-122819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122819.flac |",
-      "real_speaker_id": "426",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-121544.flac |",
-      "real_speaker_id": "82",
-      "position_frames": 75381
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 181190
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 27.241751597423775,
-      "speaker_id": "82"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2096/laugh/0038.wav",
-      "duration": 1.18,
-      "start_time": 30.10819688921023,
-      "speaker_id": "2096"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2096/cough/0066.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042587.json b/conversations/conv_042587.json
deleted file mode 100644
index dd24894f9dc991dd5a0c44da37fad84086da33c1..0000000000000000000000000000000000000000
--- a/conversations/conv_042587.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.435084441706536,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "1492-55449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-55449.flac |",
-      "real_speaker_id": "1492",
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-    {
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-      "utterance_id": "4839-15304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4839-15304.flac |",
-      "real_speaker_id": "4839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.613542289693644,
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-      "utterance_id": "2384-152900",
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-      "real_speaker_id": "2384",
-      "position_frames": 85814
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2384-152900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2384-152900.flac |",
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-      "position_frames": 190939
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-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_14.wav",
-      "duration": 1.5647845804988663,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "speaker_id": "4839"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042591.json b/conversations/conv_042591.json
deleted file mode 100644
index dae09d7b9487643ef7036e07c2d763798bae7f8a..0000000000000000000000000000000000000000
--- a/conversations/conv_042591.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57643.flac |",
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-      "speaker_id": 1,
-      "start_time": 21.703016644417083,
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-      "utterance_id": "1646-121409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121409.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.447473879136258,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57643.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 87108
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042596.json b/conversations/conv_042596.json
deleted file mode 100644
index 36ae9f30e40b0acc300818c9ada4c1a9a083fee3..0000000000000000000000000000000000000000
--- a/conversations/conv_042596.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2979-156236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156236.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.00967326347925,
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-      "utterance_id": "3334-171008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.021822138624803,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-145458.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-12312.flac |",
-      "real_speaker_id": "254",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 130250
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.75525904869788,
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-      "duration": 2.24474095130212,
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-      "utterance_id": "254-145458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-145458.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 76989
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-  "background_events": [
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-      "event_class": "Running_water",
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-  "foreground_events": [
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-      "event_class": "cough",
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-      "duration": 1.4,
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-}
\ No newline at end of file
diff --git a/conversations/conv_042600.json b/conversations/conv_042600.json
deleted file mode 100644
index cfb7194b724cad93d6804a9d45ec16f449a95282..0000000000000000000000000000000000000000
--- a/conversations/conv_042600.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4193-48170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4193-48170.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7301",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4193-48169.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4193-48170.flac |",
-      "real_speaker_id": "4193",
-      "position_frames": 89879
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 82576,
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-      "utterance_id": "6127-53038",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-53038.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 109421
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "start_time": 0,
-      "speaker_id": "4193"
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042607.json b/conversations/conv_042607.json
deleted file mode 100644
index 9f58c2e1fb2a7e6166abbd8fced40064e5348324..0000000000000000000000000000000000000000
--- a/conversations/conv_042607.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.108290673701873,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
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-      "position_frames": 74324
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_042611.json b/conversations/conv_042611.json
deleted file mode 100644
index 8f7a0e6f91c889e04fa2dd5d09e28199c0cdbfaf..0000000000000000000000000000000000000000
--- a/conversations/conv_042611.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126851.flac |",
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-      "speaker_id": 0,
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-      "real_speaker_id": "208",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "7135-80033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7135-80033.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-124554.flac |",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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\ No newline at end of file
diff --git a/conversations/conv_042616.json b/conversations/conv_042616.json
deleted file mode 100644
index 5a07f8a6e3bd22c50e259f1d543097027dc00924..0000000000000000000000000000000000000000
--- a/conversations/conv_042616.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "8422-258259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
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-      "real_speaker_id": "6352",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6098-57837.flac |",
-      "real_speaker_id": "6098",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042620.json b/conversations/conv_042620.json
deleted file mode 100644
index 400e36e5d8fcbb4dd2c7dab4ad7534e01ad27d43..0000000000000000000000000000000000000000
--- a/conversations/conv_042620.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245708.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_042636.json b/conversations/conv_042636.json
deleted file mode 100644
index 4cfa57bc045cbffd25fe99699f9183982f0214fc..0000000000000000000000000000000000000000
--- a/conversations/conv_042636.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_042641.json b/conversations/conv_042641.json
deleted file mode 100644
index 8f947df3f2311e9ad870b5066012111c167c53ab..0000000000000000000000000000000000000000
--- a/conversations/conv_042641.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.815832674979042,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-104483.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_042646.json b/conversations/conv_042646.json
deleted file mode 100644
index 50d66e0175c6becc785965b683599f7367832e0f..0000000000000000000000000000000000000000
--- a/conversations/conv_042646.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_042650.json b/conversations/conv_042650.json
deleted file mode 100644
index 2ea1dfd4cada097cf059b52c06a76e2527fa366b..0000000000000000000000000000000000000000
--- a/conversations/conv_042650.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_042657.json b/conversations/conv_042657.json
deleted file mode 100644
index 30282cec2bacc508468d9e07c78fadbeee969177..0000000000000000000000000000000000000000
--- a/conversations/conv_042657.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_042661.json b/conversations/conv_042661.json
deleted file mode 100644
index 75a9ad0c434631cd8074b74727ac9ee4ef17cb53..0000000000000000000000000000000000000000
--- a/conversations/conv_042661.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1414-130538.flac |",
-      "real_speaker_id": "1414",
-      "position_frames": 88088
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_042677.json b/conversations/conv_042677.json
deleted file mode 100644
index 34db83da16a3d8bf13df1d9d892284143b2142d7..0000000000000000000000000000000000000000
--- a/conversations/conv_042677.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042682.json b/conversations/conv_042682.json
deleted file mode 100644
index 08b4d3e9c7dadff11f059e7626fa59325d323ea8..0000000000000000000000000000000000000000
--- a/conversations/conv_042682.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042694.json b/conversations/conv_042694.json
deleted file mode 100644
index eeac4249294d4dee1af700c3bb895d0cbac8362f..0000000000000000000000000000000000000000
--- a/conversations/conv_042694.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.790667108536578,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "5136",
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-      "real_speaker_id": "7312",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-24633.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.250230628917972,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-53512.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 75859
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "start_time": 16.073513634134013,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7312/cough/0025.wav",
-      "duration": 0.4968731185791778,
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-      "event_class": "cough",
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-      "duration": 0.5391927846575668,
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-      "speaker_id": "5136"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042698.json b/conversations/conv_042698.json
deleted file mode 100644
index 356625792180822c219049d1aa6e393118031daa..0000000000000000000000000000000000000000
--- a/conversations/conv_042698.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "6227-60173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-60173.flac |",
-      "real_speaker_id": "6227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.393652694624518,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5354.flac |",
-      "real_speaker_id": "2836",
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-      "overlap": false,
-      "utterance_id": "480-123176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-123176.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.346084280690896,
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-      "overlap": false,
-      "utterance_id": "2836-5355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5355.flac |",
-      "real_speaker_id": "2836",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.144127081727486,
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-      "utterance_id": "480-126292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126292.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.74890482619052,
-      "end_time": 32.0,
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-      "utterance_id": "2836-5355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5355.flac |",
-      "real_speaker_id": "2836",
-      "position_frames": 71073
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
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-      "duration": 1.32,
-      "start_time": 26.287947958075755,
-      "speaker_id": "2836"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042703.json b/conversations/conv_042703.json
deleted file mode 100644
index 25acd6280173242d4a4a30d43c0a5528dbbda6d3..0000000000000000000000000000000000000000
--- a/conversations/conv_042703.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 89145
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24732.flac |",
-      "real_speaker_id": "4854",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.85855660219723,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24732.flac |",
-      "real_speaker_id": "4854",
-      "position_frames": 77687
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7316-10642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
-      "real_speaker_id": "7316",
-      "position_frames": 146741
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7316/laugh/0076.wav",
-      "duration": 1.56,
-      "start_time": 30.44,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7316/cough/0006.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042704.json b/conversations/conv_042704.json
deleted file mode 100644
index 397193e75ef448d338d8b3e548d6d4d9fd517173..0000000000000000000000000000000000000000
--- a/conversations/conv_042704.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3969-6872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.8802761419423137,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
-      "real_speaker_id": "3969",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4267-287369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-287369.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.131368485305373,
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-      "real_speaker_id": "3969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.12778871644109,
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-      "utterance_id": "8447-286248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286248.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.032773375615694,
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-      "duration": 4.967226624384306,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-287369.flac |",
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-      "position_frames": 90145
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042708.json b/conversations/conv_042708.json
deleted file mode 100644
index fa3f9d906453a8609893393071ff5a3a22e9318c..0000000000000000000000000000000000000000
--- a/conversations/conv_042708.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.50696499913778,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.609004660381013,
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-      "utterance_id": "2427-154673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154673.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.090911719114314,
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-      "utterance_id": "8051-118101",
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-      "real_speaker_id": "8051",
-      "position_frames": 0
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-      "start_time": 11.578290808606656,
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-      "utterance_id": "2427-154736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154736.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.042354393823533,
-      "end_time": 24.40138847907947,
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-      "utterance_id": "8051-118101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8051-118101.flac |",
-      "real_speaker_id": "8051",
-      "position_frames": 69796
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.29283378554775,
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-      "overlap": false,
-      "utterance_id": "2427-154697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154697.flac |",
-      "real_speaker_id": "2427",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
-      "duration": 3.9435877516706994,
-      "start_time": 9.068469871652853
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2427/laugh/0003.wav",
-      "duration": 1.24,
-      "start_time": 3.508528819371191,
-      "speaker_id": "2427"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042712.json b/conversations/conv_042712.json
deleted file mode 100644
index f3468ba9a72e5da8d0948eaecaa623f10ecc6f74..0000000000000000000000000000000000000000
--- a/conversations/conv_042712.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.490465966533585,
-      "duration": 5.490465966533585,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1028-133393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133393.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.644608545663749,
-      "end_time": 10.226040732721419,
-      "duration": 4.581432187057671,
-      "start_frame": 90313,
-      "duration_frames": 73302,
-      "overlap": false,
-      "utterance_id": "2929-86777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-86777.flac |",
-      "real_speaker_id": "2929",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.157250960948023,
-      "end_time": 14.862546898658,
-      "duration": 3.7052959377099777,
-      "start_frame": 178516,
-      "duration_frames": 59284,
-      "overlap": false,
-      "utterance_id": "2929-85685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-85685.flac |",
-      "real_speaker_id": "2929",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.260699673193443,
-      "end_time": 21.423955499424036,
-      "duration": 6.163255826230593,
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-      "duration_frames": 98612,
-      "overlap": false,
-      "utterance_id": "1028-133395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133395.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.592376957208327,
-      "end_time": 27.292175784920666,
-      "duration": 4.699798827712339,
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-      "overlap": false,
-      "utterance_id": "7959-109185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109185.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.77027721344097,
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-      "utterance_id": "1028-133395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133395.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 98612
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
-      "duration": 1.5198181348047242,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 2.8126015574894656,
-      "start_time": 26.406712258096213
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2929/laugh/0027.wav",
-      "duration": 1.24,
-      "start_time": 14.947319234948038,
-      "speaker_id": "2929"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042715.json b/conversations/conv_042715.json
deleted file mode 100644
index 299d216879767c76eaf9e0b9347764f396ee0290..0000000000000000000000000000000000000000
--- a/conversations/conv_042715.json
+++ /dev/null
@@ -1,88 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.710023679225447,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.85750136597192,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5618-48831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48831.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.582215418961183,
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-      "utterance_id": "1012-133424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1012-133424.flac |",
-      "real_speaker_id": "1012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.563433438570879,
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-      "overlap": false,
-      "utterance_id": "5618-48831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48831.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 77720
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.71933851302741,
-      "end_time": 25.28479103998236,
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-      "overlap": true,
-      "utterance_id": "7932-110056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7932-110056.flac |",
-      "real_speaker_id": "7932",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.272927419607274,
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-      "duration_frames": 86993,
-      "overlap": true,
-      "utterance_id": "5618-48830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48830.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
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-      "start_time": 17.009231253710535
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_042724.json b/conversations/conv_042724.json
deleted file mode 100644
index 68d5c8a0b4d3cc57bd548a95444ea27061a4bbfb..0000000000000000000000000000000000000000
--- a/conversations/conv_042724.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.098012353020202,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1160-134674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1160-134674.flac |",
-      "real_speaker_id": "1160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
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-      "utterance_id": "1160-139730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1160-139730.flac |",
-      "real_speaker_id": "1160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.29201361630469,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 87375
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.34105226742379,
-      "end_time": 28.57614970945972,
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-      "overlap": false,
-      "utterance_id": "4750-12478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4750-12478.flac |",
-      "real_speaker_id": "4750",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.250992472597325,
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-      "duration_frames": 45552,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1160-134674.flac |",
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-      "position_frames": 84806
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-      "event_class": "Frying",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042728.json b/conversations/conv_042728.json
deleted file mode 100644
index 4699799865131112d267aa8aeff702ec1c762d59..0000000000000000000000000000000000000000
--- a/conversations/conv_042728.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4773-19207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-19207.flac |",
-      "real_speaker_id": "4773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.384526664685456,
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-      "utterance_id": "4773-25911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4773-25911.flac |",
-      "real_speaker_id": "4773",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "duration": 3.049290512429935,
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-      "duration_frames": 48788,
-      "overlap": false,
-      "utterance_id": "501-125128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
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-    },
-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7147-80028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 106071
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "4773"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4773/laugh/0112.wav",
-      "duration": 1.1354810718212296,
-      "start_time": 4.130946151726858,
-      "speaker_id": "4773"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4773/laugh/0109.wav",
-      "duration": 0.7501577507985473,
-      "start_time": 21.485562126449363,
-      "speaker_id": "4773"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7147/laugh/0030.wav",
-      "duration": 1.4722799773600905,
-      "start_time": 22.379110585898943,
-      "speaker_id": "7147"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7147/laugh/0020.wav",
-      "duration": 1.22,
-      "start_time": 30.165993202283456,
-      "speaker_id": "7147"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042732.json b/conversations/conv_042732.json
deleted file mode 100644
index 3f3fbf5870f1b4ba48c38879409dda3637afd0da..0000000000000000000000000000000000000000
--- a/conversations/conv_042732.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.2858821557602,
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-      "duration_frames": 84574,
-      "overlap": false,
-      "utterance_id": "7143-88743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88743.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-61317.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "6918-47541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.742113741899413,
-      "end_time": 21.339318850980696,
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-      "overlap": false,
-      "utterance_id": "2491-134787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
-      "real_speaker_id": "2491",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.653309102987027,
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-      "utterance_id": "6918-47541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-47541.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 74362
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.538195942146356,
-      "end_time": 32.0,
-      "duration": 3.4618040578536444,
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-      "utterance_id": "2491-134787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
-      "real_speaker_id": "2491",
-      "position_frames": 57555
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.38,
-      "start_time": 27.608908932260114,
-      "speaker_id": "6918"
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-      "event_class": "cough",
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-      "duration": 0.5723236119619068,
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-      "speaker_id": "2491"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042742.json b/conversations/conv_042742.json
deleted file mode 100644
index 7f0abd5d9c835a6f1b39d939121da10e33b73ae2..0000000000000000000000000000000000000000
--- a/conversations/conv_042742.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8118-114469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-114469.flac |",
-      "real_speaker_id": "8118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.291598156817176,
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-      "position_frames": 0
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-      "utterance_id": "3977-185457",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185457.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.43368280091798,
-      "end_time": 22.585704591415737,
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-      "duration_frames": 66432,
-      "overlap": false,
-      "utterance_id": "6668-34612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34612.flac |",
-      "real_speaker_id": "6668",
-      "position_frames": 90569
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185457.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 56681
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6668-34612.flac |",
-      "real_speaker_id": "6668",
-      "position_frames": 157001
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "duration": 1.06,
-      "start_time": 0,
-      "speaker_id": "8118"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042745.json b/conversations/conv_042745.json
deleted file mode 100644
index 705523c77171cedfd8ebf3f40f916c69724d5e1f..0000000000000000000000000000000000000000
--- a/conversations/conv_042745.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
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-      "start_time": 0.0,
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-      "utterance_id": "1313-135020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135020.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.964705618667443,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125941.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1313-135022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135022.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "2407",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "1313",
-      "position_frames": 74287
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125941.flac |",
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-  ],
-  "background_events": [
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1313/laugh/0096.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042749.json b/conversations/conv_042749.json
deleted file mode 100644
index f5cbb7a4dabc753f855169d7a8f2edcdfdd1a452..0000000000000000000000000000000000000000
--- a/conversations/conv_042749.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.564727552399979,
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-      "real_speaker_id": "5867",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 88501
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.136468121670063,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 155191
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Alarm_bell_ringing",
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-      "speaker_id": "4766"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042753.json b/conversations/conv_042753.json
deleted file mode 100644
index ad6f3d5e8cdfc603d2a03df9f075616797a4f0ee..0000000000000000000000000000000000000000
--- a/conversations/conv_042753.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8580-287364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287364.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.971882955710634,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.286748027702615,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 62482
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4813-248641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 97605
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.566059893265773,
-      "end_time": 32.0,
-      "duration": 3.4339401067342266,
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-      "overlap": false,
-      "utterance_id": "8580-287363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287363.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 30.92,
-      "speaker_id": "8580"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042754.json b/conversations/conv_042754.json
deleted file mode 100644
index ef94179d4e2e6d849aceeddd801f66b31672b2fb..0000000000000000000000000000000000000000
--- a/conversations/conv_042754.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5876-10347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-10347.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "1968",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-10347.flac |",
-      "real_speaker_id": "5876",
-      "position_frames": 91248
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7708-293973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-293973.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "start_frame": 396163,
-      "duration_frames": 84322,
-      "overlap": false,
-      "utterance_id": "1968-145732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
-      "position_frames": 82018
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5876-8675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5876-8675.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-      "speaker_id": "1968"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 26.645986517262557,
-      "speaker_id": "1968"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042765.json b/conversations/conv_042765.json
deleted file mode 100644
index 108c00bfbdedf77cdfd193a143f6d2cb5b0e9ff6..0000000000000000000000000000000000000000
--- a/conversations/conv_042765.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1643-138089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1643-138089.flac |",
-      "real_speaker_id": "1643",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.567912028782442,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-133227.flac |",
-      "real_speaker_id": "224",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "781-126737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-126737.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1643",
-      "position_frames": 49098
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1643",
-      "position_frames": 105293
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.38919060953539,
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-  "background_events": [
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-      "event_class": "Dishes",
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-    {
-      "event_class": "Dog",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "224"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042768.json b/conversations/conv_042768.json
deleted file mode 100644
index 4f5b8df1b0e5c7b21d0dd62ca17c563fbe5f3053..0000000000000000000000000000000000000000
--- a/conversations/conv_042768.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.30066259899373,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132537.flac |",
-      "real_speaker_id": "957",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_042769.json b/conversations/conv_042769.json
deleted file mode 100644
index 924d36b605db94e8ce92587e5be45d80df19967b..0000000000000000000000000000000000000000
--- a/conversations/conv_042769.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166420.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_042773.json b/conversations/conv_042773.json
deleted file mode 100644
index b8601eacba1fd8a0a10b62e137816f3ef7711de2..0000000000000000000000000000000000000000
--- a/conversations/conv_042773.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "2050",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_042778.json b/conversations/conv_042778.json
deleted file mode 100644
index 6be4b900039a2b11eb4ab04789a2ae4628a009bd..0000000000000000000000000000000000000000
--- a/conversations/conv_042778.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
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-    {
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-      "real_speaker_id": "7078",
-      "position_frames": 197192
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-}
\ No newline at end of file
diff --git a/conversations/conv_042786.json b/conversations/conv_042786.json
deleted file mode 100644
index cf952332a61ba66ab377485866886a47eda8871d..0000000000000000000000000000000000000000
--- a/conversations/conv_042786.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.436039735589105,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5248-34499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34499.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4872",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274380.flac |",
-      "real_speaker_id": "8222",
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-      "event_class": "laugh",
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-      "duration": 0.586840752438713,
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-      "speaker_id": "5248"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4872/laugh/0040.wav",
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-      "speaker_id": "4872"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8222/laugh/0026.wav",
-      "duration": 1.18,
-      "start_time": 30.82,
-      "speaker_id": "8222"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042787.json b/conversations/conv_042787.json
deleted file mode 100644
index 799bd4a2e0f6229102d8e861646ea3160d3f34c7..0000000000000000000000000000000000000000
--- a/conversations/conv_042787.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.42229003427428,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 5.028710149750266,
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-      "overlap": false,
-      "utterance_id": "5044-30602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5044-30602.flac |",
-      "real_speaker_id": "5044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-73712.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "64-73712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-73712.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 55542
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.946440792600207,
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-      "duration": 3.182417195313798,
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-      "utterance_id": "5029-80197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-80197.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.411512917114784,
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-      "utterance_id": "64-76974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76974.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5029-31091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-31091.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "5029-80197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-80197.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "duration": 1.04,
-      "start_time": 30.432879617270206,
-      "speaker_id": "5029"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_042790.json b/conversations/conv_042790.json
deleted file mode 100644
index 67fa8fadc907208ac4bd8064793beee37cbde9e6..0000000000000000000000000000000000000000
--- a/conversations/conv_042790.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.775176824890973,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4078-7619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.823942654496396,
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-      "real_speaker_id": "921",
-      "position_frames": 0
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-      "utterance_id": "373-130974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130974.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.012799623403566,
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-      "duration": 5.054799453013951,
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-      "duration_frames": 80876,
-      "overlap": false,
-      "utterance_id": "921-127937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/921-127937.flac |",
-      "real_speaker_id": "921",
-      "position_frames": 74134
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.32522093644568,
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-      "duration_frames": 87199,
-      "overlap": false,
-      "utterance_id": "373-130975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130975.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/921/cough/0017.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042797.json b/conversations/conv_042797.json
deleted file mode 100644
index ac702c34a17b363bcf8694535f9638c47b3f2a82..0000000000000000000000000000000000000000
--- a/conversations/conv_042797.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.61537000442952,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.006418502006162,
-      "start_frame": 0,
-      "duration_frames": 80102,
-      "overlap": false,
-      "utterance_id": "1710-133294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133294.flac |",
-      "real_speaker_id": "1710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.717431500082785,
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-      "overlap": false,
-      "utterance_id": "585-294811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "1710-133295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133295.flac |",
-      "real_speaker_id": "1710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.443704704853722,
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-      "utterance_id": "8506-287659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-287659.flac |",
-      "real_speaker_id": "8506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133294.flac |",
-      "real_speaker_id": "1710",
-      "position_frames": 80102
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.30493618962087,
-      "end_time": 31.61537000442952,
-      "duration": 3.310433814808647,
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-      "duration_frames": 52966,
-      "overlap": true,
-      "utterance_id": "585-294811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/585-294811.flac |",
-      "real_speaker_id": "585",
-      "position_frames": 48918
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/585/laugh/0064.wav",
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-      "start_time": 4.100732442905542,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1710/laugh/0070.wav",
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-      "start_time": 28.200752959572068,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1710/cough/0018.wav",
-      "duration": 1.2686365198163596,
-      "start_time": 21.5038681203506,
-      "speaker_id": "1710"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042800.json b/conversations/conv_042800.json
deleted file mode 100644
index 48cf9c91cb7a665e9ed6ae8d939ae800451e0f9c..0000000000000000000000000000000000000000
--- a/conversations/conv_042800.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 29.90559655215504,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-233090.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-57348.flac |",
-      "real_speaker_id": "5951",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-      "speaker_id": "7933"
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-}
\ No newline at end of file
diff --git a/conversations/conv_042801.json b/conversations/conv_042801.json
deleted file mode 100644
index 10ba175298611ee4e89e40be3390ab029ec8711b..0000000000000000000000000000000000000000
--- a/conversations/conv_042801.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.58327289492617,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "976-172189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/976-172189.flac |",
-      "real_speaker_id": "976",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 7.179257054037576,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47239.flac |",
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-      "utterance_id": "976-131095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/976-131095.flac |",
-      "real_speaker_id": "976",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 17.117649427508287,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47238.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_042817.json b/conversations/conv_042817.json
deleted file mode 100644
index bf0ab4943fe7310250bfcb19523d9ee5369cc8a5..0000000000000000000000000000000000000000
--- a/conversations/conv_042817.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.642261437756225,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-9960.flac |",
-      "real_speaker_id": "83",
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-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_042821.json b/conversations/conv_042821.json
deleted file mode 100644
index a75a63f094701a9130d913abe54cbf4c34034219..0000000000000000000000000000000000000000
--- a/conversations/conv_042821.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4681-13056.flac |",
-      "real_speaker_id": "4681",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7859-102518.flac |",
-      "real_speaker_id": "7859",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4681-13056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4681-13056.flac |",
-      "real_speaker_id": "4681",
-      "position_frames": 72992
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-    {
-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_042837.json b/conversations/conv_042837.json
deleted file mode 100644
index ce3d382e90d994e8ab410b46638cb211646b5327..0000000000000000000000000000000000000000
--- a/conversations/conv_042837.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.674397736455123,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173553.flac |",
-      "real_speaker_id": "3571",
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-    {
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-      "utterance_id": "3571-173554",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_042840.json b/conversations/conv_042840.json
deleted file mode 100644
index 4a02c329bdf28fab1bf7308b36616467da9f4136..0000000000000000000000000000000000000000
--- a/conversations/conv_042840.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_042856.json b/conversations/conv_042856.json
deleted file mode 100644
index 290a578297b0952509d127ea3d948018341b1c9f..0000000000000000000000000000000000000000
--- a/conversations/conv_042856.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_042857.json b/conversations/conv_042857.json
deleted file mode 100644
index 57051814e0266e7bca3d55a2c339016dd77b9cc1..0000000000000000000000000000000000000000
--- a/conversations/conv_042857.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_042860.json b/conversations/conv_042860.json
deleted file mode 100644
index 4aef7e9e61e4633d72f5a43fe46aa206742e0562..0000000000000000000000000000000000000000
--- a/conversations/conv_042860.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
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-    {
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_042876.json b/conversations/conv_042876.json
deleted file mode 100644
index deda5152e8fd0668f7a6fe215d6f416988c4674c..0000000000000000000000000000000000000000
--- a/conversations/conv_042876.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3992",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-12359.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3992-714.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_042883.json b/conversations/conv_042883.json
deleted file mode 100644
index 8dbf0c2af3d0ea0893269a545b6e1343b60da344..0000000000000000000000000000000000000000
--- a/conversations/conv_042883.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5765",
-      "position_frames": 88778
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40169.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_042884.json b/conversations/conv_042884.json
deleted file mode 100644
index c5c74d022a1084b9877f2cce236c5274588650fe..0000000000000000000000000000000000000000
--- a/conversations/conv_042884.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "4396-33397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-33397.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4396-14564",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "1977",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042892.json b/conversations/conv_042892.json
deleted file mode 100644
index f2e878639bfc49c7aa9b7f9388e300f69f8d6eaa..0000000000000000000000000000000000000000
--- a/conversations/conv_042892.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_042895.json b/conversations/conv_042895.json
deleted file mode 100644
index bc68adba377ed073dbb8c0e81fe9390b4c1bc29f..0000000000000000000000000000000000000000
--- a/conversations/conv_042895.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1182",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121408.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_042899.json b/conversations/conv_042899.json
deleted file mode 100644
index c2925fa1418325df7615ba5b29a909d3eee6a067..0000000000000000000000000000000000000000
--- a/conversations/conv_042899.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
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-      "event_class": "laugh",
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-      "start_time": 23.614805334720067,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "4710"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042905.json b/conversations/conv_042905.json
deleted file mode 100644
index e7bcb6161ac3ed98ad5160f74630fb39018faa93..0000000000000000000000000000000000000000
--- a/conversations/conv_042905.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.917549029754944,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
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-      "speaker_id": "596"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8479/laugh/0009.wav",
-      "duration": 1.3,
-      "start_time": 27.970349929777978,
-      "speaker_id": "8479"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8479/cough/0017.wav",
-      "duration": 0.7321072187817703,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/596/laugh/0103.wav",
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042909.json b/conversations/conv_042909.json
deleted file mode 100644
index 6dfd6cc31d618fb9a22915b1b93ed9bdc0e057a7..0000000000000000000000000000000000000000
--- a/conversations/conv_042909.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
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-      "start_time": 0.0,
-      "end_time": 5.249166400300719,
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-      "overlap": false,
-      "utterance_id": "6993-83606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83606.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.502835171361563,
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-      "duration": 5.051424366688644,
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-      "utterance_id": "6705-74243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74243.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.145436946528513,
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-      "duration": 6.02991505817281,
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-      "utterance_id": "6705-74242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74242.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.10980638854583,
-      "end_time": 22.298616867074248,
-      "duration": 4.188810478528418,
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-      "duration_frames": 67020,
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-      "utterance_id": "7512-98636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83606.flac |",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74243.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 80822
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_5.wav",
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-      "start_time": 17.720478025187692
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_042912.json b/conversations/conv_042912.json
deleted file mode 100644
index 8840ffbf592b7484cd3e8df9682b61c9ef200185..0000000000000000000000000000000000000000
--- a/conversations/conv_042912.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/696-93314.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136955.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164984.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.894304947938963,
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-      "overlap": true,
-      "utterance_id": "1097-136955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136955.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 77586
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.40006565175094,
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-      "duration": 2.599934348249061,
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-      "utterance_id": "696-92939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/696-92939.flac |",
-      "real_speaker_id": "696",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042913.json b/conversations/conv_042913.json
deleted file mode 100644
index fb2cc0bd75f2b4ae0e6e30787652d959b29fb9aa..0000000000000000000000000000000000000000
--- a/conversations/conv_042913.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8051-295385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8051-295385.flac |",
-      "real_speaker_id": "8051",
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-    {
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-      "real_speaker_id": "8190",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8190-284433",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_042925.json b/conversations/conv_042925.json
deleted file mode 100644
index dcba4bedc2b2b6f30f0d076a5ac87d759ccb1509..0000000000000000000000000000000000000000
--- a/conversations/conv_042925.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "duration": 0.6274374960798053,
-      "start_time": 31.372562503920193,
-      "speaker_id": "915"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042929.json b/conversations/conv_042929.json
deleted file mode 100644
index 03b2c36ab56bc16ea540e154768cb677472c8aaa..0000000000000000000000000000000000000000
--- a/conversations/conv_042929.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "speaker_id": 1,
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-      "utterance_id": "1370-138531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.773144980565848,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-287767.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
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-      "utterance_id": "1370-138531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 69975
-    },
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-      "speaker_id": 1,
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-      "utterance_id": "1370-138531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 130059
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.04428811294586,
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-      "duration": 4.590012431397971,
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-      "utterance_id": "8295-281339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-281339.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.950506247385103,
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-      "start_frame": 383208,
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-      "utterance_id": "1370-138531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 188193
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.988291093635475,
-      "end_time": 32.0,
-      "duration": 3.0117089063645253,
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-      "utterance_id": "8295-287767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-287767.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 86238
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 3.2355246356091962,
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-      "event_class": "cough",
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-      "duration": 1.34,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042933.json b/conversations/conv_042933.json
deleted file mode 100644
index 32a9c10cad32350f333a7986c21edb7ac7f7a572..0000000000000000000000000000000000000000
--- a/conversations/conv_042933.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-133279.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 55853
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "2085",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1271-133279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-133279.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 76588
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2085-147971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147971.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.2,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042938.json b/conversations/conv_042938.json
deleted file mode 100644
index 5c9d12df197a953116b31fa751ad08712716b601..0000000000000000000000000000000000000000
--- a/conversations/conv_042938.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "3400",
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-    {
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-      "segment_id": "seg0004",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042944.json b/conversations/conv_042944.json
deleted file mode 100644
index 2e5ada5cb1b8031e8d1c52cda09061928f5a82f3..0000000000000000000000000000000000000000
--- a/conversations/conv_042944.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
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-      "utterance_id": "5985-63885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-63885.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 69351
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 178270
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.716938441241463,
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5985/cough/0046.wav",
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-      "start_time": 23.719278454850866,
-      "speaker_id": "5985"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042945.json b/conversations/conv_042945.json
deleted file mode 100644
index 6935a36817ba2c7f32ac0fca3fc946f9d6d3352c..0000000000000000000000000000000000000000
--- a/conversations/conv_042945.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.51960321452749,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.87222808212198,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3744-178590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178590.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.179310780621368,
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-      "start_frame": 82868,
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-      "utterance_id": "6097-293616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293616.flac |",
-      "real_speaker_id": "6097",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.185339479166913,
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-      "overlap": false,
-      "utterance_id": "3744-178594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178594.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.806137294658562,
-      "end_time": 21.912371411357345,
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-      "overlap": false,
-      "utterance_id": "6097-293621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293621.flac |",
-      "real_speaker_id": "6097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.199153781532946,
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-      "overlap": false,
-      "utterance_id": "3744-178594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178594.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 86605
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.207412016827533,
-      "end_time": 31.51960321452749,
-      "duration": 3.3121911976999554,
-      "start_frame": 451318,
-      "duration_frames": 52995,
-      "overlap": false,
-      "utterance_id": "3744-177438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-177438.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-      "event_class": "Dog",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3744/laugh/0126.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3744/laugh/0131.wav",
-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "3744"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042948.json b/conversations/conv_042948.json
deleted file mode 100644
index 2a0ace3f32e796bf7df2c857f60b59fabf10105c..0000000000000000000000000000000000000000
--- a/conversations/conv_042948.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.71285730450074,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.579434052270302,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8183-118119.flac |",
-      "real_speaker_id": "8183",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.39098953871255,
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-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 76553
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.626451275772098,
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-      "duration_frames": 84474,
-      "overlap": false,
-      "utterance_id": "8183-118128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8183-118128.flac |",
-      "real_speaker_id": "8183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.054200815965437,
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-      "duration": 4.6586564885353035,
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-      "overlap": true,
-      "utterance_id": "2301-134424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-134424.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-      "duration": 1.28,
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-}
\ No newline at end of file
diff --git a/conversations/conv_042952.json b/conversations/conv_042952.json
deleted file mode 100644
index 714f75d5387ad1f3cbb1c0fffc58547f8edc2e33..0000000000000000000000000000000000000000
--- a/conversations/conv_042952.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3271-169289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7843-110055.flac |",
-      "real_speaker_id": "7843",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4406-16883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16883.flac |",
-      "real_speaker_id": "4406",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.06147134997341,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7843-110055.flac |",
-      "real_speaker_id": "7843",
-      "position_frames": 64190
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3271",
-      "position_frames": 84419
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7843-110055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7843-110055.flac |",
-      "real_speaker_id": "7843",
-      "position_frames": 143904
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3271/cough/0006.wav",
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-      "speaker_id": "3271"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042964.json b/conversations/conv_042964.json
deleted file mode 100644
index 5f06f3f08836031560e317905ed7a26e616836c2..0000000000000000000000000000000000000000
--- a/conversations/conv_042964.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.994550309262804,
-      "duration": 6.994550309262804,
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-      "utterance_id": "7333-94828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94828.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-143268.flac |",
-      "real_speaker_id": "1280",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7333-94827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94827.flac |",
-      "real_speaker_id": "7333",
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-    {
-      "segment_id": "seg0003",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042968.json b/conversations/conv_042968.json
deleted file mode 100644
index 4f35287a761f77a2b198399901302381257ebe77..0000000000000000000000000000000000000000
--- a/conversations/conv_042968.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
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-      "real_speaker_id": "1674",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "4174-69287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-69287.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_042969.json b/conversations/conv_042969.json
deleted file mode 100644
index fa4c9226aa2735a783213b5e63be768666b6da65..0000000000000000000000000000000000000000
--- a/conversations/conv_042969.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4964",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19209.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 77568
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
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-      "position_frames": 114922
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_042972.json b/conversations/conv_042972.json
deleted file mode 100644
index 834e85c655ef24effc411ebdc5a3d056c513577d..0000000000000000000000000000000000000000
--- a/conversations/conv_042972.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "real_speaker_id": "7520",
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-      "real_speaker_id": "1693",
-      "position_frames": 169772
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "2397",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_042979.json b/conversations/conv_042979.json
deleted file mode 100644
index 84751024de1c94fe37feee91590e278c04caf8bb..0000000000000000000000000000000000000000
--- a/conversations/conv_042979.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_042980.json b/conversations/conv_042980.json
deleted file mode 100644
index 31365243e90c9b0667c925eb415a55bd39192e58..0000000000000000000000000000000000000000
--- a/conversations/conv_042980.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_042986.json b/conversations/conv_042986.json
deleted file mode 100644
index 7acc7f883d701671a475a1d33be23382aa26e788..0000000000000000000000000000000000000000
--- a/conversations/conv_042986.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_042987.json b/conversations/conv_042987.json
deleted file mode 100644
index 34353888dad4cedb5d6218ec6d10a4d48d147c02..0000000000000000000000000000000000000000
--- a/conversations/conv_042987.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-      "duration": 1.12,
-      "start_time": 27.20762272125892,
-      "speaker_id": "2971"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_042991.json b/conversations/conv_042991.json
deleted file mode 100644
index c32341e60f5c3f5fa72653b6455c2df97a0f994b..0000000000000000000000000000000000000000
--- a/conversations/conv_042991.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "3852-175448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
-      "position_frames": 0
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-      "start_time": 10.786025200387718,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
-      "position_frames": 73640
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-    {
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-      "speaker_id": 1,
-      "start_time": 15.958485690098808,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
-      "position_frames": 148321
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "968-122544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.213334768514763,
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-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
-      "position_frames": 76890
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_042996.json b/conversations/conv_042996.json
deleted file mode 100644
index 3a25bbc078bfafe1c334d7ccceb14377d7dc0131..0000000000000000000000000000000000000000
--- a/conversations/conv_042996.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_043000.json b/conversations/conv_043000.json
deleted file mode 100644
index ea667c60d8627427f5bea78eb3cb00ab4042c17d..0000000000000000000000000000000000000000
--- a/conversations/conv_043000.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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\ No newline at end of file
diff --git a/conversations/conv_043007.json b/conversations/conv_043007.json
deleted file mode 100644
index ef6403bdd65e953bad69f06af1948b547c813cc3..0000000000000000000000000000000000000000
--- a/conversations/conv_043007.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "start_time": 31.467129958770563,
-      "speaker_id": "7391"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043011.json b/conversations/conv_043011.json
deleted file mode 100644
index 86ea0d9a209ac6ee69cab6f25aacf73102f6369a..0000000000000000000000000000000000000000
--- a/conversations/conv_043011.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.870587864610831,
-      "duration": 6.870587864610831,
-      "start_frame": 0,
-      "duration_frames": 109929,
-      "overlap": false,
-      "utterance_id": "2156-82458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-82458.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.421301088763913,
-      "end_time": 12.904036355866907,
-      "duration": 5.482735267102994,
-      "start_frame": 118740,
-      "duration_frames": 87723,
-      "overlap": false,
-      "utterance_id": "7515-100431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7515-100431.flac |",
-      "real_speaker_id": "7515",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.538423691336378,
-      "end_time": 19.34492058641758,
-      "duration": 5.806496895081201,
-      "start_frame": 216614,
-      "duration_frames": 92903,
-      "overlap": false,
-      "utterance_id": "2156-82458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-82458.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 109929
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.886635234312166,
-      "end_time": 24.882406685147814,
-      "duration": 4.995771450835649,
-      "start_frame": 318186,
-      "duration_frames": 79932,
-      "overlap": false,
-      "utterance_id": "4340-15220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.074469399187848,
-      "end_time": 28.705721306598,
-      "duration": 3.631251907410153,
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-      "duration_frames": 58100,
-      "overlap": false,
-      "utterance_id": "4340-15220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 79932
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.188843426877504,
-      "end_time": 32.0,
-      "duration": 2.8111565731224957,
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-      "duration_frames": 44978,
-      "overlap": false,
-      "utterance_id": "2156-17942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-17942.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_7.wav",
-      "duration": 0.32034013605442174,
-      "start_time": 21.08805630210599
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2156/laugh/0043.wav",
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-      "speaker_id": "2156"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7515/cough/0028.wav",
-      "duration": 0.6495739968626044,
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-      "speaker_id": "7515"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2156/laugh/0029.wav",
-      "duration": 0.7954908208703181,
-      "start_time": 19.554816680047097,
-      "speaker_id": "2156"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4340/cough/0026.wav",
-      "duration": 0.8441822361377136,
-      "start_time": 18.994016517785926,
-      "speaker_id": "4340"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4340/cough/0050.wav",
-      "duration": 0.4745583451017983,
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-      "speaker_id": "4340"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2156/laugh/0111.wav",
-      "duration": 0.84,
-      "start_time": 28.132718773864983,
-      "speaker_id": "2156"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043016.json b/conversations/conv_043016.json
deleted file mode 100644
index 9a9b02a4eb5a02c04ea52c9af8f07be688837967..0000000000000000000000000000000000000000
--- a/conversations/conv_043016.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.988885554088359,
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-      "overlap": false,
-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.929683121844973,
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-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.666351112224397,
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-      "duration": 4.443309414612281,
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-      "duration_frames": 71092,
-      "overlap": false,
-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 95822
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.322351268730976,
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-      "duration": 5.068408937945471,
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-      "overlap": true,
-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.932475581298,
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-      "overlap": false,
-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 166914
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.222281633511145,
-      "end_time": 32.0,
-      "duration": 3.7777183664888554,
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-      "duration_frames": 60443,
-      "overlap": false,
-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 81094
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_12.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1828/laugh/0045.wav",
-      "duration": 1.2,
-      "start_time": 1.116466304021066,
-      "speaker_id": "1828"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7522/laugh/0026.wav",
-      "duration": 1.28,
-      "start_time": 7.011354445029603,
-      "speaker_id": "7522"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1828/cough/0038.wav",
-      "duration": 0.7214740379060938,
-      "start_time": 10.799385683738144,
-      "speaker_id": "1828"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043027.json b/conversations/conv_043027.json
deleted file mode 100644
index 732a3b7932769e73813f003cf7e5cc979155211e..0000000000000000000000000000000000000000
--- a/conversations/conv_043027.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.535981675424956,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "duration": 6.43118334453806,
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-      "duration_frames": 102898,
-      "overlap": false,
-      "utterance_id": "2606-130138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-130138.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.250296747436055,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.81192244875421,
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-      "overlap": true,
-      "utterance_id": "2606-132102",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-132102.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.57174921351963,
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-      "utterance_id": "6773-76039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 86892
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.557190414472252,
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-      "utterance_id": "152-132799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-132799.flac |",
-      "real_speaker_id": "152",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.4045426915143,
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-      "duration_frames": 82103,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6773-76039.flac |",
-      "real_speaker_id": "6773",
-      "position_frames": 146760
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_3.wav",
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-      "start_time": 21.967452596766698
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_043031.json b/conversations/conv_043031.json
deleted file mode 100644
index 7a8fb873d643fe90dc3108adedc657bf1961fde9..0000000000000000000000000000000000000000
--- a/conversations/conv_043031.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6788-111574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-111574.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.134978791811017,
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-      "utterance_id": "7780-274562",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6788-111574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-111574.flac |",
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-      "position_frames": 77266
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
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-  "foreground_events": [
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-      "duration": 1.2511636101136556,
-      "start_time": 22.02377289429772,
-      "speaker_id": "6788"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043041.json b/conversations/conv_043041.json
deleted file mode 100644
index c152ff3940da4be82a3c82a2f5d87d4c13e0a6a5..0000000000000000000000000000000000000000
--- a/conversations/conv_043041.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.718790169496838,
-      "duration": 6.718790169496838,
-      "start_frame": 0,
-      "duration_frames": 107500,
-      "overlap": false,
-      "utterance_id": "1280-143268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-143268.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.01682420890835,
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-      "utterance_id": "4021-130137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4021-130137.flac |",
-      "real_speaker_id": "4021",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.37091865695571,
-      "end_time": 23.076803055052096,
-      "duration": 5.705884398096387,
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-      "overlap": false,
-      "utterance_id": "1280-143268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-143268.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 107500
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.949315787610757,
-      "end_time": 30.44472018190036,
-      "duration": 6.495404394289604,
-      "start_frame": 383189,
-      "duration_frames": 103926,
-      "overlap": false,
-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 86780
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.280395268174875,
-      "end_time": 32.0,
-      "duration": 0.7196047318251253,
-      "start_frame": 500486,
-      "duration_frames": 11513,
-      "overlap": false,
-      "utterance_id": "1280-143268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-143268.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 198794
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "start_time": 0.16564940556454247
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1280/laugh/0102.wav",
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4021/laugh/0109.wav",
-      "duration": 0.9773107121212892,
-      "start_time": 8.915953083980629,
-      "speaker_id": "4021"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043046.json b/conversations/conv_043046.json
deleted file mode 100644
index 9d63bb930da53b33fbb9a4f7474100c8546d4988..0000000000000000000000000000000000000000
--- a/conversations/conv_043046.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.807997198714267,
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-      "overlap": false,
-      "utterance_id": "5746-48361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48361.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.798265789744847,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5776-46889.flac |",
-      "real_speaker_id": "5776",
-      "position_frames": 0
-    },
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-      "utterance_id": "5776-46889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5776-46889.flac |",
-      "real_speaker_id": "5776",
-      "position_frames": 75804
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "6300-39660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39660.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.176234652878705,
-      "end_time": 27.802530413237257,
-      "duration": 4.626295760358553,
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-      "utterance_id": "5776-46889",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5776-46889.flac |",
-      "real_speaker_id": "5776",
-      "position_frames": 158767
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.15345190094237,
-      "end_time": 32.0,
-      "duration": 2.8465480990576317,
-      "start_frame": 466455,
-      "duration_frames": 45544,
-      "overlap": false,
-      "utterance_id": "6300-39660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39660.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 63047
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5746/laugh/0011.wav",
-      "duration": 0.9091964552736338,
-      "start_time": 2.844394775210561,
-      "speaker_id": "5746"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5776/laugh/0115.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6300/cough/0059.wav",
-      "duration": 0.5163091183318382,
-      "start_time": 20.570013652680206,
-      "speaker_id": "6300"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043050.json b/conversations/conv_043050.json
deleted file mode 100644
index 10050e0957e0d006766bc92f6315b6ffd034f58e..0000000000000000000000000000000000000000
--- a/conversations/conv_043050.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6557-66462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-66462.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.036138674336006,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-4137.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-66462.flac |",
-      "real_speaker_id": "6557",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6557",
-      "position_frames": 139669
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "6914-284528",
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-      "real_speaker_id": "6914",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.087354248727863,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/32-4137.flac |",
-      "real_speaker_id": "32",
-      "position_frames": 52431
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.06763775698486,
-      "end_time": 32.0,
-      "duration": 3.9323622430151417,
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-  "background_events": [
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 8.422696116572418,
-      "speaker_id": "32"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043057.json b/conversations/conv_043057.json
deleted file mode 100644
index df80dc7c44b6a25c5e0f9fcc620a218ce7c418f4..0000000000000000000000000000000000000000
--- a/conversations/conv_043057.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.047249813450403,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
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-      "position_frames": 0
-    },
-    {
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-    {
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-    {
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_043066.json b/conversations/conv_043066.json
deleted file mode 100644
index d11e30507d7960663249620df8b4a74476528ffb..0000000000000000000000000000000000000000
--- a/conversations/conv_043066.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6583-66269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66269.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.350430488364485,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-66463.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 18.4492784299103,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-78885.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 100822
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.474751302065833,
-      "end_time": 32.0,
-      "duration": 0.5252486979341668,
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-      "duration_frames": 8403,
-      "overlap": false,
-      "utterance_id": "6188-78885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-78885.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 87810
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_043070.json b/conversations/conv_043070.json
deleted file mode 100644
index b7a2fcd0d5b7de192f4b6d2991be0d3b59a69d40..0000000000000000000000000000000000000000
--- a/conversations/conv_043070.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-80695.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-83701.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 83484
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "7096"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043085.json b/conversations/conv_043085.json
deleted file mode 100644
index 386368d5cfeef40a0c931b1f7e5fe0a43642470e..0000000000000000000000000000000000000000
--- a/conversations/conv_043085.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.78718695767233,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/439-122810.flac |",
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-      "segment_id": "seg0004",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_043089.json b/conversations/conv_043089.json
deleted file mode 100644
index 76f6810d5a045c4ff2f86944ccc6c1745d251586..0000000000000000000000000000000000000000
--- a/conversations/conv_043089.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "real_speaker_id": "7688",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6038-56777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 140299
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.9280185618136,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-109656.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6038/laugh/0048.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "6038"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7688/cough/0055.wav",
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-      "speaker_id": "7688"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043093.json b/conversations/conv_043093.json
deleted file mode 100644
index 62b19463c685f054ea57fdcfc14ca1dd160441c1..0000000000000000000000000000000000000000
--- a/conversations/conv_043093.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6332-64734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.246136223920217,
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-      "duration": 6.201100264664859,
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-      "duration_frames": 99217,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.34424453405055,
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-      "utterance_id": "6332-64734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 105033
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.922696912281978,
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-      "duration": 3.1585176228114284,
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-      "overlap": false,
-      "utterance_id": "1183-128659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-128659.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.250407127732057,
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-      "utterance_id": "1183-133255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-133255.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.591760318255965,
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-      "duration": 2.4082396817440355,
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-      "duration_frames": 38531,
-      "overlap": false,
-      "utterance_id": "6332-64734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 176653
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "1183"
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_043103.json b/conversations/conv_043103.json
deleted file mode 100644
index fca9f69c019a585c609818ced07ff87066bb9d33..0000000000000000000000000000000000000000
--- a/conversations/conv_043103.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.570852161035972,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "1200-135067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135067.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.83610160062007,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-157088.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "8575-290349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8575-290349.flac |",
-      "real_speaker_id": "8575",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.772663813852084,
-      "end_time": 23.19799099963011,
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-      "overlap": false,
-      "utterance_id": "1200-135068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135068.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.5836659694035,
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-      "utterance_id": "205-123882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-123882.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_043104.json b/conversations/conv_043104.json
deleted file mode 100644
index 159490cf8bc6b7d3c740dfed6001f0b2181c2d00..0000000000000000000000000000000000000000
--- a/conversations/conv_043104.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1421-8534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8534.flac |",
-      "real_speaker_id": "1421",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8522.flac |",
-      "real_speaker_id": "1421",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.81263025978716,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
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-    {
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-      "duration_frames": 53683,
-      "overlap": false,
-      "utterance_id": "1421-8539",
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-      "real_speaker_id": "1421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_043112.json b/conversations/conv_043112.json
deleted file mode 100644
index 4229c6eb098eb62063d9abb351eca5124ea4229a..0000000000000000000000000000000000000000
--- a/conversations/conv_043112.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5321-8590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-8590.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.30825780174975,
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-      "utterance_id": "622-128448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128448.flac |",
-      "real_speaker_id": "622",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5321-53046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-53046.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "622",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-53046.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 77471
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.87320433772898,
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-      "duration": 5.126795662271022,
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-      "utterance_id": "622-128448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128448.flac |",
-      "real_speaker_id": "622",
-      "position_frames": 67661
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.5498546868917786,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5321/laugh/0144.wav",
-      "duration": 1.12,
-      "start_time": 9.097460575692594,
-      "speaker_id": "5321"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5321/laugh/0117.wav",
-      "duration": 0.81269833176401,
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-      "event_class": "cough",
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-      "start_time": 28.861418479600005,
-      "speaker_id": "622"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043115.json b/conversations/conv_043115.json
deleted file mode 100644
index 755f8e94100cfa2c64a02a095a635f72498cb562..0000000000000000000000000000000000000000
--- a/conversations/conv_043115.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.0246355704021353,
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-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.832070760833822,
-      "end_time": 9.637088886474078,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127535.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 10.16109696353447,
-      "end_time": 14.449135287329364,
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-      "overlap": false,
-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 48394
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.604671667746995,
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-      "start_frame": 233674,
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-      "utterance_id": "307-127535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127535.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 92880
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.343307644413535,
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-      "overlap": false,
-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 117002
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.17806308961112,
-      "end_time": 29.114265724031977,
-      "duration": 3.9362026344208596,
-      "start_frame": 402849,
-      "duration_frames": 62979,
-      "overlap": false,
-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 195924
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.462808511629454,
-      "end_time": 32.0,
-      "duration": 2.5371914883705458,
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-      "duration_frames": 40595,
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-      "utterance_id": "307-127540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127540.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "start_time": 6.799128692451984
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_1.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.9,
-      "start_time": 9.225363978826396,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/307/laugh/0007.wav",
-      "duration": 1.425752530038956,
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-      "speaker_id": "307"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043119.json b/conversations/conv_043119.json
deleted file mode 100644
index 2bf1e391d6e2e54a9434c35325b8634f48849443..0000000000000000000000000000000000000000
--- a/conversations/conv_043119.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.351841259162618,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2999-156967.flac |",
-      "real_speaker_id": "2999",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
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-      "speaker_id": 1,
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-      "utterance_id": "625-132112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.874074543059976,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 72643
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.409371433986195,
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-      "overlap": false,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 171571
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.305098392471116,
-      "end_time": 32.0,
-      "duration": 0.6949016075288839,
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-      "utterance_id": "625-132112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 62280
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3079/laugh/0046.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3079/laugh/0005.wav",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_043123.json b/conversations/conv_043123.json
deleted file mode 100644
index fe26dea7c42ace204318874ba796d40c196d07a3..0000000000000000000000000000000000000000
--- a/conversations/conv_043123.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.600288195545794,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "6735",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8245-283126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-283126.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.436622720899386,
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-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 49360
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.155596575380066,
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-      "utterance_id": "6735-66412",
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-      "real_speaker_id": "6735",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.63750896565689,
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-      "duration": 5.962779229888901,
-      "start_frame": 410200,
-      "duration_frames": 95404,
-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 123222
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
-    {
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-      "start_time": 21.268500443800388,
-      "speaker_id": "6735"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043135.json b/conversations/conv_043135.json
deleted file mode 100644
index 4bdb8b211ca7f9695011bae45510421559bb732d..0000000000000000000000000000000000000000
--- a/conversations/conv_043135.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.760935927575438,
-      "duration": 5.760935927575438,
-      "start_frame": 0,
-      "duration_frames": 92174,
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\ No newline at end of file
diff --git a/conversations/conv_043139.json b/conversations/conv_043139.json
deleted file mode 100644
index 02578a2ba44f7af58c026dad65edb4d0d615920c..0000000000000000000000000000000000000000
--- a/conversations/conv_043139.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6459-70128.flac |",
-      "real_speaker_id": "6459",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-191426.flac |",
-      "real_speaker_id": "3906",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-184005.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_043142.json b/conversations/conv_043142.json
deleted file mode 100644
index b1ffacd4e5a4e3513ef5da1eae829b47ed76a176..0000000000000000000000000000000000000000
--- a/conversations/conv_043142.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "real_speaker_id": "4148",
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-}
\ No newline at end of file
diff --git a/conversations/conv_043145.json b/conversations/conv_043145.json
deleted file mode 100644
index 31157c5f9d0eddf906bf2f6b135665fa6a1954d1..0000000000000000000000000000000000000000
--- a/conversations/conv_043145.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
-      "real_speaker_id": "2491",
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-      "real_speaker_id": "2204",
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-      "real_speaker_id": "2491",
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-      "real_speaker_id": "2204",
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-      "segment_id": "seg0005",
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-      "utterance_id": "2491-134787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
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-      "position_frames": 165736
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "speaker_id": "2491"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043153.json b/conversations/conv_043153.json
deleted file mode 100644
index 9b545d3ffee45a69aabe427e48ba3f1fd2f5c939..0000000000000000000000000000000000000000
--- a/conversations/conv_043153.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3137/laugh/0022.wav",
-      "duration": 1.24,
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-      "speaker_id": "3137"
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-      "event_class": "laugh",
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-      "duration": 1.5448926908116498,
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-      "duration": 1.14,
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-      "speaker_id": "2740"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043154.json b/conversations/conv_043154.json
deleted file mode 100644
index 955a7cfbd66e038679565dcb2b9748c4ac6cd487..0000000000000000000000000000000000000000
--- a/conversations/conv_043154.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.31468884629316,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
-      "real_speaker_id": "2843",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.9471616395704068,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48361.flac |",
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-      "real_speaker_id": "2843",
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-      "real_speaker_id": "7923",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.090278850314032,
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-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
-      "real_speaker_id": "2843",
-      "position_frames": 100754
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48361.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 76989
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "duration_frames": 54883,
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-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
-      "real_speaker_id": "2843",
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "2843"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043158.json b/conversations/conv_043158.json
deleted file mode 100644
index bf8cc1939a2d2bfe8561a183d33299ec686ea723..0000000000000000000000000000000000000000
--- a/conversations/conv_043158.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6145-54685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54685.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.365343818775418,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126790.flac |",
-      "real_speaker_id": "298",
-      "position_frames": 0
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-    {
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-      "utterance_id": "8071-110067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-110067.flac |",
-      "real_speaker_id": "8071",
-      "position_frames": 0
-    },
-    {
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-      "overlap": true,
-      "utterance_id": "6145-54683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6145-54683.flac |",
-      "real_speaker_id": "6145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-114972.flac |",
-      "real_speaker_id": "8071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.339951701120565,
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-      "utterance_id": "8071-114972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-114972.flac |",
-      "real_speaker_id": "8071",
-      "position_frames": 67577
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "298-126791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126791.flac |",
-      "real_speaker_id": "298",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-      "start_time": 1.0054587383208788
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6145/laugh/0051.wav",
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-    {
-      "event_class": "laugh",
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-    {
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-      "speaker_id": "298"
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-    {
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-    },
-    {
-      "event_class": "cough",
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-      "start_time": 29.47186855479003,
-      "speaker_id": "8071"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043162.json b/conversations/conv_043162.json
deleted file mode 100644
index 928e357d993c28430a261aaa2c990c78f328b190..0000000000000000000000000000000000000000
--- a/conversations/conv_043162.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.387774784323256,
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-      "overlap": false,
-      "utterance_id": "8644-262284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262284.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.8272897045803225,
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-      "utterance_id": "8138-287657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-287657.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.821293182035571,
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-      "utterance_id": "8644-262282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262282.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.545485053542833,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293529.flac |",
-      "real_speaker_id": "8138",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8644/cough/0015.wav",
-      "duration": 0.4223376421795107,
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-      "speaker_id": "8644"
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-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 17.352011778018863,
-      "speaker_id": "8644"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043169.json b/conversations/conv_043169.json
deleted file mode 100644
index a8eb08007e277646195a3cce191299517c215cfe..0000000000000000000000000000000000000000
--- a/conversations/conv_043169.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.9870126175457896,
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-      "overlap": false,
-      "utterance_id": "2624-88360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.521955476023383,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
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-      "utterance_id": "2624-173598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-173598.flac |",
-      "real_speaker_id": "2624",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 63792
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.45720709690101,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 189043
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-      "speaker_id": "283"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043174.json b/conversations/conv_043174.json
deleted file mode 100644
index 11024c1cdfec09f9519ca79b9c7430f1b3374db5..0000000000000000000000000000000000000000
--- a/conversations/conv_043174.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1060-134451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3389",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 101306
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 66338
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_043178.json b/conversations/conv_043178.json
deleted file mode 100644
index 663f69330e0475f6dd1ca51d34d746b96faac51b..0000000000000000000000000000000000000000
--- a/conversations/conv_043178.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6488",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "31",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.040628565510367,
-      "start_time": 17.44062990645944,
-      "speaker_id": "2299"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/31/laugh/0014.wav",
-      "duration": 1.24,
-      "start_time": 19.576859167719334,
-      "speaker_id": "31"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6488/laugh/0044.wav",
-      "duration": 1.6758446636992472,
-      "start_time": 26.400941059455008,
-      "speaker_id": "6488"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/31/laugh/0016.wav",
-      "duration": 0.773372111829306,
-      "start_time": 28.030122822940378,
-      "speaker_id": "31"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043179.json b/conversations/conv_043179.json
deleted file mode 100644
index 1e6dd2b78c5d02f2559f698fa4ae182dfe102adc..0000000000000000000000000000000000000000
--- a/conversations/conv_043179.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.38441936367815,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.779218371708102,
-      "duration": 4.779218371708102,
-      "start_frame": 0,
-      "duration_frames": 76467,
-      "overlap": false,
-      "utterance_id": "1593-91064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1593-91064.flac |",
-      "real_speaker_id": "1593",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.984378967020931,
-      "end_time": 10.701644877185402,
-      "duration": 5.71726591016447,
-      "start_frame": 79750,
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-      "overlap": false,
-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.563489908151338,
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-      "start_frame": 185015,
-      "duration_frames": 104430,
-      "overlap": false,
-      "utterance_id": "1593-94847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1593-94847.flac |",
-      "real_speaker_id": "1593",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.284477826664983,
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-      "duration": 3.8329137109266043,
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-      "duration_frames": 61326,
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-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 91476
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.10222073486319,
-      "end_time": 26.89300560153307,
-      "duration": 3.7907848666698776,
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-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 152802
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.369514904883104,
-      "end_time": 31.38441936367815,
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-      "duration_frames": 64238,
-      "overlap": false,
-      "utterance_id": "1769-143485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143485.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "start_time": 15.461089739519881
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1593/laugh/0064.wav",
-      "duration": 0.8423982014534446,
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-      "speaker_id": "1593"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1769/laugh/0001.wav",
-      "duration": 0.5679891744875194,
-      "start_time": 26.54677720405367,
-      "speaker_id": "1769"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043181.json b/conversations/conv_043181.json
deleted file mode 100644
index 379f8edb7b7ad9b89d28b4d6c98213c4dafa0753..0000000000000000000000000000000000000000
--- a/conversations/conv_043181.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6097-293616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293616.flac |",
-      "real_speaker_id": "6097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.823266477903847,
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-      "overlap": false,
-      "utterance_id": "4800-73729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "6097-293619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6097-293619.flac |",
-      "real_speaker_id": "6097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.529838083283746,
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-      "overlap": false,
-      "utterance_id": "5163-39921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-39921.flac |",
-      "real_speaker_id": "5163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.870586660966282,
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-      "duration": 4.129413339033718,
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-      "utterance_id": "5163-39921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5163-39921.flac |",
-      "real_speaker_id": "5163",
-      "position_frames": 91260
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6097/laugh/0096.wav",
-      "duration": 0.5297701313373036,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6097/laugh/0114.wav",
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-      "speaker_id": "6097"
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-    {
-      "event_class": "cough",
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-      "duration": 0.36495177756815383,
-      "start_time": 21.10305457787988,
-      "speaker_id": "5163"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043186.json b/conversations/conv_043186.json
deleted file mode 100644
index a27fdc2211d7817cf491ef0775c53bb7bb5164a3..0000000000000000000000000000000000000000
--- a/conversations/conv_043186.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.840017603290626,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5940-54016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54016.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.427042800600922,
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-      "duration": 6.6016055143149295,
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-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.533430850458423,
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-      "duration": 6.2783886351928375,
-      "start_frame": 216534,
-      "duration_frames": 100454,
-      "overlap": false,
-      "utterance_id": "5940-54016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54016.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 85811
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.92419936940979,
-      "end_time": 24.58976277754325,
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-      "start_frame": 318787,
-      "duration_frames": 74649,
-      "overlap": false,
-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.319825446919605,
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-      "overlap": false,
-      "utterance_id": "5940-54016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5940-54016.flac |",
-      "real_speaker_id": "5940",
-      "position_frames": 186265
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5940/laugh/0100.wav",
-      "duration": 1.12,
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-    {
-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "5940"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043196.json b/conversations/conv_043196.json
deleted file mode 100644
index 028e2553d20259dbf2017a53301fdf2aacf538ce..0000000000000000000000000000000000000000
--- a/conversations/conv_043196.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8394-96177",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.796787740562827,
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-      "utterance_id": "1383-130533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130533.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.201967708940938,
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-      "start_frame": 211231,
-      "duration_frames": 83251,
-      "overlap": false,
-      "utterance_id": "8394-96177",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 101282
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "end_time": 23.091729552430547,
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-      "duration_frames": 74975,
-      "overlap": true,
-      "utterance_id": "7520-258954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.514940933347233,
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-      "utterance_id": "8394-96177",
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-      "real_speaker_id": "8394",
-      "position_frames": 184533
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.831595322901368,
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-      "duration": 3.168404677098632,
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-      "utterance_id": "1383-130489",
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-      "real_speaker_id": "1383",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_043197.json b/conversations/conv_043197.json
deleted file mode 100644
index 8457f2da9a7fa27cb52dd5c225bff375518c0cb0..0000000000000000000000000000000000000000
--- a/conversations/conv_043197.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.826791591451201,
-      "duration": 5.826791591451201,
-      "start_frame": 0,
-      "duration_frames": 93228,
-      "overlap": false,
-      "utterance_id": "366-127793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-127793.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.46937112469813,
-      "end_time": 12.526147434071179,
-      "duration": 6.056776309373049,
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-      "utterance_id": "366-129285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-129285.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.812378445398892,
-      "end_time": 18.578207772536466,
-      "duration": 5.765829327137575,
-      "start_frame": 204998,
-      "duration_frames": 92253,
-      "overlap": false,
-      "utterance_id": "7520-258986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.28391354888814,
-      "end_time": 23.973255108451717,
-      "duration": 4.689341559563576,
-      "start_frame": 308542,
-      "duration_frames": 75029,
-      "overlap": false,
-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.678191001158375,
-      "end_time": 31.062763997499836,
-      "duration": 6.38457299634146,
-      "start_frame": 394851,
-      "duration_frames": 102153,
-      "overlap": false,
-      "utterance_id": "7520-258954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.369049564871357,
-      "end_time": 32.0,
-      "duration": 0.6309504351286428,
-      "start_frame": 501904,
-      "duration_frames": 10095,
-      "overlap": false,
-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 75029
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
-      "duration": 1.5315132246482417,
-      "start_time": 4.501326973552295
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
-      "duration": 4.094172335600907,
-      "start_time": 27.13657925036836
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7520/cough/0010.wav",
-      "duration": 1.0,
-      "start_time": 11.710910222714439,
-      "speaker_id": "7520"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2694/laugh/0082.wav",
-      "duration": 1.18,
-      "start_time": 30.82,
-      "speaker_id": "2694"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043206.json b/conversations/conv_043206.json
deleted file mode 100644
index c4b9a044af48ba0c4e6189ba97c7ca9f4931a6b0..0000000000000000000000000000000000000000
--- a/conversations/conv_043206.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.1676446190109,
-      "duration": 6.1676446190109,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7514-96429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.1874976838841835,
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-      "overlap": false,
-      "utterance_id": "4415-16759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.809450745166906,
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-      "duration": 4.548537020671753,
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-      "duration_frames": 72776,
-      "overlap": true,
-      "utterance_id": "7514-96429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 98682
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.590558286101526,
-      "end_time": 24.106572384706247,
-      "duration": 6.516014098604723,
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-      "duration_frames": 104256,
-      "overlap": false,
-      "utterance_id": "4415-16759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 68581
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.467865915937082,
-      "end_time": 30.429489506249475,
-      "duration": 5.96162359031239,
-      "start_frame": 391485,
-      "duration_frames": 95385,
-      "overlap": false,
-      "utterance_id": "7514-96429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 171458
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.001898138931697,
-      "end_time": 32.0,
-      "duration": 0.998101861068303,
-      "start_frame": 496030,
-      "duration_frames": 15969,
-      "overlap": false,
-      "utterance_id": "7514-96429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 266843
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
-      "duration": 0.236984126984127,
-      "start_time": 14.520258029187955
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4415/cough/0046.wav",
-      "duration": 0.5521453243816115,
-      "start_time": 11.525005871832226,
-      "speaker_id": "4415"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7514/laugh/0003.wav",
-      "duration": 0.5709863992042434,
-      "start_time": 27.36824354203941,
-      "speaker_id": "7514"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043207.json b/conversations/conv_043207.json
deleted file mode 100644
index 8856e44407d6fdccc2c247fe9457512412203f7f..0000000000000000000000000000000000000000
--- a/conversations/conv_043207.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.171387899287437,
-      "duration": 6.171387899287437,
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-      "overlap": false,
-      "utterance_id": "1116-137572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-137572.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.637722819092133,
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-      "duration": 3.7412774775578654,
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-      "overlap": false,
-      "utterance_id": "5321-53046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-53046.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.144770758676062,
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-      "duration": 4.179625646721403,
-      "start_frame": 178316,
-      "duration_frames": 66874,
-      "overlap": false,
-      "utterance_id": "1116-137572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-137572.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 98742
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.56249863986631,
-      "end_time": 22.2545548393066,
-      "duration": 6.69205619944029,
-      "start_frame": 248999,
-      "duration_frames": 107072,
-      "overlap": false,
-      "utterance_id": "5321-8590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-8590.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.494929459243373,
-      "end_time": 28.420318283283805,
-      "duration": 5.925388824040434,
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-      "duration_frames": 94806,
-      "overlap": false,
-      "utterance_id": "1116-137572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-137572.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 165616
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.96984545765903,
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-      "duration": 3.03015454234097,
-      "start_frame": 463517,
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-      "overlap": false,
-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
-      "real_speaker_id": "8531",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
-      "duration": 4.871176147734522,
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5321/cough/0095.wav",
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-      "start_time": 5.542810466790759,
-      "speaker_id": "5321"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043210.json b/conversations/conv_043210.json
deleted file mode 100644
index 9d991be642a438fc84453785fdb14a243e3b2438..0000000000000000000000000000000000000000
--- a/conversations/conv_043210.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 3.9944415312152732,
-      "start_frame": 0,
-      "duration_frames": 63911,
-      "overlap": false,
-      "utterance_id": "366-127793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-127793.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.205049825234385,
-      "end_time": 9.156438311076702,
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-      "start_frame": 67280,
-      "duration_frames": 79222,
-      "overlap": true,
-      "utterance_id": "6385-220959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6385-220959.flac |",
-      "real_speaker_id": "6385",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.514066533742454,
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-      "start_frame": 152225,
-      "duration_frames": 82029,
-      "overlap": true,
-      "utterance_id": "5678-43301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43301.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.789077664834721,
-      "end_time": 19.13076311380736,
-      "duration": 3.3416854489726386,
-      "start_frame": 252625,
-      "duration_frames": 53466,
-      "overlap": false,
-      "utterance_id": "366-129285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-129285.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.233325570813314,
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-      "duration_frames": 63349,
-      "overlap": false,
-      "utterance_id": "5678-43303",
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-      "real_speaker_id": "5678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6385-34669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6385-34669.flac |",
-      "real_speaker_id": "6385",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.73100400470937,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43301.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 82029
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/366/cough/0039.wav",
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-      "start_time": 17.11630392749615,
-      "speaker_id": "366"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6385/cough/0079.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5678/cough/0053.wav",
-      "duration": 1.489657594320116,
-      "start_time": 30.510342405679886,
-      "speaker_id": "5678"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043226.json b/conversations/conv_043226.json
deleted file mode 100644
index 648e60884df254a477c96c526ffba0a3a640496a..0000000000000000000000000000000000000000
--- a/conversations/conv_043226.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.69241644541442,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-207.flac |",
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-      "segment_id": "seg0006",
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-      "real_speaker_id": "9023",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "6371"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_043230.json b/conversations/conv_043230.json
deleted file mode 100644
index 7a793b05a060e81ca75585f6eaf6413b4228e9d4..0000000000000000000000000000000000000000
--- a/conversations/conv_043230.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7318-96151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.4855041405492075,
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-      "duration": 5.734666782311391,
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-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.175630422069627,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 91754
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.861667063134,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 89436
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.127988893242083,
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-      "duration_frames": 34047,
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-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 162884
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "1987"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043247.json b/conversations/conv_043247.json
deleted file mode 100644
index 72dc59d4e82d04a87fd2a1f11c043e004bedab69..0000000000000000000000000000000000000000
--- a/conversations/conv_043247.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.554293228434,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "2589-22581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22581.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51654.flac |",
-      "real_speaker_id": "6076",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "2589-22574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22574.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.860116914085033,
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-      "utterance_id": "3549-9203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3549-9203.flac |",
-      "real_speaker_id": "3549",
-      "position_frames": 59938
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2589-22574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-22574.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 91378
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3549/laugh/0073.wav",
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_043250.json b/conversations/conv_043250.json
deleted file mode 100644
index d92de6644417a82d1e3e404c30e98d0087402aab..0000000000000000000000000000000000000000
--- a/conversations/conv_043250.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5570-73847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73847.flac |",
-      "real_speaker_id": "5570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-126577.flac |",
-      "real_speaker_id": "203",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "5570-73847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73847.flac |",
-      "real_speaker_id": "5570",
-      "position_frames": 51676
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "5036-18451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
-      "real_speaker_id": "5036",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.494058618222923,
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-      "duration": 6.798477250274684,
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-      "overlap": false,
-      "utterance_id": "5570-73848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73848.flac |",
-      "real_speaker_id": "5570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.016688496322438,
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-      "duration": 2.9833115036775624,
-      "start_frame": 464267,
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-      "overlap": false,
-      "utterance_id": "5036-18450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18450.flac |",
-      "real_speaker_id": "5036",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_043251.json b/conversations/conv_043251.json
deleted file mode 100644
index 2e3aa5fd410fd5833a1e484460c05973b4949006..0000000000000000000000000000000000000000
--- a/conversations/conv_043251.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "duration": 3.6843515830320896,
-      "start_frame": 0,
-      "duration_frames": 58949,
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-      "utterance_id": "1844-145713",
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-      "speaker_id": "2167"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043267.json b/conversations/conv_043267.json
deleted file mode 100644
index 45425536ac4a262e4340e685db61f943403333ca..0000000000000000000000000000000000000000
--- a/conversations/conv_043267.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1913-143521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-143521.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-121416.flac |",
-      "real_speaker_id": "2010",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-147045.flac |",
-      "real_speaker_id": "2010",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-147990.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.88853040762073,
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-      "real_speaker_id": "1913",
-      "position_frames": 66851
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2010-121416",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-121416.flac |",
-      "real_speaker_id": "2010",
-      "position_frames": 50735
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_043271.json b/conversations/conv_043271.json
deleted file mode 100644
index 56636887264653fbde72f6173740377a5e3bd64a..0000000000000000000000000000000000000000
--- a/conversations/conv_043271.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
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-      "real_speaker_id": "6353",
-      "position_frames": 78679
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6476",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.22962116803189,
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-      "real_speaker_id": "3871",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
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-      "position_frames": 187401
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-    {
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-      "duration": 1.52,
-      "start_time": 21.44364199890194,
-      "speaker_id": "3871"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043283.json b/conversations/conv_043283.json
deleted file mode 100644
index 728df10fc941f6d3508b67ed76f513050aa063cf..0000000000000000000000000000000000000000
--- a/conversations/conv_043283.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.77508528240446,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "104-132092",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-132092.flac |",
-      "real_speaker_id": "104",
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-    {
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2269-147627.flac |",
-      "real_speaker_id": "2269",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6568/laugh/0124.wav",
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-      "speaker_id": "6568"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043284.json b/conversations/conv_043284.json
deleted file mode 100644
index 4cea9e6c1ee520577d5752f014c6d78d57d46469..0000000000000000000000000000000000000000
--- a/conversations/conv_043284.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 149386
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-}
\ No newline at end of file
diff --git a/conversations/conv_043288.json b/conversations/conv_043288.json
deleted file mode 100644
index 4d3d20a13695e4aa2e34ae5aa0a3d83fb8a36d7b..0000000000000000000000000000000000000000
--- a/conversations/conv_043288.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5628-47240.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_043292.json b/conversations/conv_043292.json
deleted file mode 100644
index 12d7e7033e889eb0df21e854a502028f044a8dd9..0000000000000000000000000000000000000000
--- a/conversations/conv_043292.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
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-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_043295.json b/conversations/conv_043295.json
deleted file mode 100644
index c91e07968a59fcefe4a07c522313822251ae4a33..0000000000000000000000000000000000000000
--- a/conversations/conv_043295.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": "5740"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2060/cough/0057.wav",
-      "duration": 1.1069467649507814,
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-      "speaker_id": "2060"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5740/cough/0062.wav",
-      "duration": 0.9171339458356522,
-      "start_time": 12.413279467135148,
-      "speaker_id": "5740"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5740/laugh/0035.wav",
-      "duration": 1.12,
-      "start_time": 25.680872256091103,
-      "speaker_id": "5740"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5740/cough/0096.wav",
-      "duration": 0.610795367599702,
-      "start_time": 23.86436753557771,
-      "speaker_id": "5740"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043302.json b/conversations/conv_043302.json
deleted file mode 100644
index 1cc0f11f50e10b8ed2149fbe72102a1e8ca2a2c2..0000000000000000000000000000000000000000
--- a/conversations/conv_043302.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.929343558291755,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.529905402191359,
-      "duration": 4.529905402191359,
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-      "duration_frames": 72478,
-      "overlap": false,
-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.068915074298035,
-      "end_time": 11.316880738760375,
-      "duration": 6.24796566446234,
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-      "duration_frames": 99967,
-      "overlap": false,
-      "utterance_id": "6339-65534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.438164353644328,
-      "end_time": 14.969580345223765,
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-      "duration_frames": 56502,
-      "overlap": true,
-      "utterance_id": "6339-65534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65534.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 99967
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.1696410624433,
-      "end_time": 20.853059359155562,
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-      "overlap": false,
-      "utterance_id": "2817-142371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.64110565406626,
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-      "duration": 4.470620094401452,
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-      "duration_frames": 71529,
-      "overlap": false,
-      "utterance_id": "6339-65554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6339-65554.flac |",
-      "real_speaker_id": "6339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.03861310018639,
-      "end_time": 30.929343558291755,
-      "duration": 3.890730458105366,
-      "start_frame": 432617,
-      "duration_frames": 62251,
-      "overlap": false,
-      "utterance_id": "2817-142371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142371.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 74934
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
-      "duration": 27.619639746219484,
-      "start_time": 1.54572587722506
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-      "start_time": 30.685261544104915
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2817/laugh/0115.wav",
-      "duration": 0.5142135065663771,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6339/laugh/0070.wav",
-      "duration": 1.24,
-      "start_time": 12.962915479741525,
-      "speaker_id": "6339"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2817/laugh/0011.wav",
-      "duration": 0.7218530013180058,
-      "start_time": 18.980457493684717,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6339/laugh/0105.wav",
-      "duration": 0.731414287067885,
-      "start_time": 26.113769504601837,
-      "speaker_id": "6339"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2817/laugh/0084.wav",
-      "duration": 1.255436692663893,
-      "start_time": 30.744563307336108,
-      "speaker_id": "2817"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043314.json b/conversations/conv_043314.json
deleted file mode 100644
index fdc3c5ef9d7e2642bbfbd54a735fdb70209635f0..0000000000000000000000000000000000000000
--- a/conversations/conv_043314.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.9304464249212447,
-      "duration": 3.9304464249212447,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5671-50453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50453.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.651660686136807,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-139205.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.510369240263817,
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-      "overlap": false,
-      "utterance_id": "5671-50453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50453.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 62887
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.24732084157709,
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-      "duration": 4.404470656767957,
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-      "overlap": false,
-      "utterance_id": "684-139205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-139205.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 78936
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.284413706515796,
-      "end_time": 24.386092893912934,
-      "duration": 3.1016791873971394,
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-      "overlap": false,
-      "utterance_id": "5671-50454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-50454.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.533025606611094,
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-      "duration_frames": 54700,
-      "overlap": true,
-      "utterance_id": "684-137978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-137978.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.837257927481197,
-      "end_time": 32.0,
-      "duration": 3.162742072518803,
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-      "utterance_id": "5671-24628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-24628.flac |",
-      "real_speaker_id": "5671",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "duration": 1.36,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5671/laugh/0051.wav",
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-      "start_time": 29.440145117935618,
-      "speaker_id": "5671"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043315.json b/conversations/conv_043315.json
deleted file mode 100644
index 76293f9389250a14a0036da28cb5bf232b4e6f7c..0000000000000000000000000000000000000000
--- a/conversations/conv_043315.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.8936470824812,
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-      "overlap": false,
-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "1367-291968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291968.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 62298
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.3471009412567,
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-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 74378
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.21681369673405,
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-      "duration": 4.78318630326595,
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-      "duration_frames": 76530,
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-      "utterance_id": "1367-291968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291968.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 74561
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.688418336173041,
-      "start_time": 24.806950902698315
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2724/laugh/0073.wav",
-      "duration": 1.6420986226050172,
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-      "speaker_id": "2724"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043318.json b/conversations/conv_043318.json
deleted file mode 100644
index 3ce812c79cbde808cd75a3b55068559401d27f65..0000000000000000000000000000000000000000
--- a/conversations/conv_043318.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.2414546925639,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 6.2880864437151995,
-      "start_frame": 0,
-      "duration_frames": 100609,
-      "overlap": false,
-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.616164359563191,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-258266.flac |",
-      "real_speaker_id": "7789",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.227353517517258,
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-      "utterance_id": "8494-244431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244431.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 100609
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244431.flac |",
-      "real_speaker_id": "8494",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-258266.flac |",
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-  "foreground_events": [
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-      "duration": 1.7883882297427938,
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-      "speaker_id": "7789"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043322.json b/conversations/conv_043322.json
deleted file mode 100644
index da6553429bbc47165397cb28a9d367ffeb34ecbe..0000000000000000000000000000000000000000
--- a/conversations/conv_043322.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.0587098479145194,
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-      "utterance_id": "3895-6855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
-      "real_speaker_id": "3895",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.049570161859306,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/273-129288.flac |",
-      "real_speaker_id": "273",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "3895-6855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
-      "real_speaker_id": "3895",
-      "position_frames": 48939
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.437673906219317,
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-      "overlap": true,
-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.903990211481336,
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-      "duration": 6.149371427373715,
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-      "utterance_id": "273-123248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/273-123248.flac |",
-      "real_speaker_id": "273",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.07408182596549,
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-      "utterance_id": "4428-6523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4428-6523.flac |",
-      "real_speaker_id": "4428",
-      "position_frames": 71661
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.876564778071316,
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-      "utterance_id": "3895-6855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
-      "real_speaker_id": "3895",
-      "position_frames": 112863
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_043329.json b/conversations/conv_043329.json
deleted file mode 100644
index c38c9ce49b36ab95b627daf3da6e53c3a13e87e5..0000000000000000000000000000000000000000
--- a/conversations/conv_043329.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "404-132014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132014.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89167.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132013.flac |",
-      "real_speaker_id": "404",
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-      "speaker_id": 0,
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-      "utterance_id": "5139-30106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30106.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6902",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5139-30106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30106.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 87151
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-      "event_class": "Cat",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "speaker_id": "5139"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6902/laugh/0099.wav",
-      "duration": 0.96,
-      "start_time": 23.388016296216723,
-      "speaker_id": "6902"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043334.json b/conversations/conv_043334.json
deleted file mode 100644
index 276b2ae1855fa9dec746c0b9377c4d596ddd70ba..0000000000000000000000000000000000000000
--- a/conversations/conv_043334.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4434-73957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73957.flac |",
-      "real_speaker_id": "4434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5339-14134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5935-43322",
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-      "real_speaker_id": "5935",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.561197451792577,
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-      "utterance_id": "5935-43322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-43322.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 67592
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "5339",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5339-14133",
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-      "real_speaker_id": "5339",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_043338.json b/conversations/conv_043338.json
deleted file mode 100644
index d1e4bef84a43cc18cf9abdd18ff09fcbe037dc03..0000000000000000000000000000000000000000
--- a/conversations/conv_043338.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "44-201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "2607",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121439.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
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-      "start_time": 30.86,
-      "speaker_id": "44"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_043342.json b/conversations/conv_043342.json
deleted file mode 100644
index 7ac9b1ff14793864cd07bc19bd923e9d6e0e3811..0000000000000000000000000000000000000000
--- a/conversations/conv_043342.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-92002.flac |",
-      "real_speaker_id": "7460",
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-      "real_speaker_id": "7460",
-      "position_frames": 87377
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_043343.json b/conversations/conv_043343.json
deleted file mode 100644
index be42d4a568816b3766025710074cd4a05457842e..0000000000000000000000000000000000000000
--- a/conversations/conv_043343.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5489",
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-      "segment_id": "seg0004",
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-      "position_frames": 0
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-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_043355.json b/conversations/conv_043355.json
deleted file mode 100644
index a0cfbfe4c39e9652925aaa475633dcdbab307322..0000000000000000000000000000000000000000
--- a/conversations/conv_043355.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.308884814551483,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
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-      "position_frames": 0
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-    {
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-    {
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_043359.json b/conversations/conv_043359.json
deleted file mode 100644
index 367e5b789115c1329ce203bd835c45afcdd8f37a..0000000000000000000000000000000000000000
--- a/conversations/conv_043359.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_043363.json b/conversations/conv_043363.json
deleted file mode 100644
index 78d0102778cb2402376a17c5eb2507d9b8a317e6..0000000000000000000000000000000000000000
--- a/conversations/conv_043363.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.646622028889478,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4423-16012.flac |",
-      "real_speaker_id": "4423",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-104647.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-102465.flac |",
-      "real_speaker_id": "7640",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_043368.json b/conversations/conv_043368.json
deleted file mode 100644
index 427106311c127e828c55a7d4b10928a7b59674be..0000000000000000000000000000000000000000
--- a/conversations/conv_043368.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-122804.flac |",
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-      "real_speaker_id": "6509",
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-    {
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-      "real_speaker_id": "6509",
-      "position_frames": 109714
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-    {
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-      "speaker_id": "6509"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043375.json b/conversations/conv_043375.json
deleted file mode 100644
index 73b232ccc3926e832327cce5d8663da9887ee9eb..0000000000000000000000000000000000000000
--- a/conversations/conv_043375.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_043379.json b/conversations/conv_043379.json
deleted file mode 100644
index a136d9687b80cc7b1e14daa110edbd1af5b102c8..0000000000000000000000000000000000000000
--- a/conversations/conv_043379.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 0
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-      "position_frames": 51330
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_043380.json b/conversations/conv_043380.json
deleted file mode 100644
index b8436004c3b71abbbc9eab728076ae2147b5a35e..0000000000000000000000000000000000000000
--- a/conversations/conv_043380.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "6713",
-      "position_frames": 68659
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-      "duration": 1.12,
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-}
\ No newline at end of file
diff --git a/conversations/conv_043381.json b/conversations/conv_043381.json
deleted file mode 100644
index 3d8deef6632b5e74698cbe3a2e73d24d24284c44..0000000000000000000000000000000000000000
--- a/conversations/conv_043381.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_043387.json b/conversations/conv_043387.json
deleted file mode 100644
index e99da947d0aaa4081b36afbcd290b20fdb6e7942..0000000000000000000000000000000000000000
--- a/conversations/conv_043387.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7174101442371477,
-      "duration": 3.7174101442371477,
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-      "overlap": false,
-      "utterance_id": "844-133692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-133692.flac |",
-      "real_speaker_id": "844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.231294284721048,
-      "end_time": 7.575283959307374,
-      "duration": 3.3439896745863256,
-      "start_frame": 67700,
-      "duration_frames": 53503,
-      "overlap": false,
-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.483861551511133,
-      "end_time": 13.743710728144338,
-      "duration": 5.259849176633205,
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-      "overlap": false,
-      "utterance_id": "844-135042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-135042.flac |",
-      "real_speaker_id": "844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.508267150607583,
-      "end_time": 19.044912627757615,
-      "duration": 4.536645477150031,
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-      "overlap": false,
-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.398909136637233,
-      "end_time": 24.05694005684508,
-      "duration": 4.658030920207848,
-      "start_frame": 310382,
-      "duration_frames": 74528,
-      "overlap": false,
-      "utterance_id": "4964-30587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4964-30587.flac |",
-      "real_speaker_id": "4964",
-      "position_frames": 53503
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.982134561967925,
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-      "utterance_id": "844-133692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-133692.flac |",
-      "real_speaker_id": "844",
-      "position_frames": 59478
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.605306464565565,
-      "end_time": 32.0,
-      "duration": 1.3946935354344348,
-      "start_frame": 489684,
-      "duration_frames": 22315,
-      "overlap": false,
-      "utterance_id": "3825-134160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
-      "duration": 0.205578231292517,
-      "start_time": 13.393768980248192
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.3569909691742983,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/844/laugh/0133.wav",
-      "duration": 1.0533517748122214,
-      "start_time": 27.06108356885277,
-      "speaker_id": "844"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043391.json b/conversations/conv_043391.json
deleted file mode 100644
index 903e75da605b2a2ae31a74070bb322fd18f4394e..0000000000000000000000000000000000000000
--- a/conversations/conv_043391.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.088267671689804,
-      "duration": 5.088267671689804,
-      "start_frame": 0,
-      "duration_frames": 81412,
-      "overlap": false,
-      "utterance_id": "2093-143262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143262.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.574372102884655,
-      "end_time": 11.768253447400529,
-      "duration": 6.193881344515873,
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-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.131330544754007,
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-      "start_frame": 194101,
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-      "overlap": false,
-      "utterance_id": "2093-143271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143271.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.787806303785057,
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-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 99102
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.812772463794204,
-      "end_time": 30.06726077069827,
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-      "duration_frames": 68071,
-      "overlap": false,
-      "utterance_id": "2093-143264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143264.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.225627916426358,
-      "end_time": 32.0,
-      "duration": 1.7743720835736418,
-      "start_frame": 483610,
-      "duration_frames": 28389,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 186741
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
-      "duration": 14.907210884353741,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
-      "duration": 4.0036507936507935,
-      "start_time": 22.399237114571765
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2093/cough/0094.wav",
-      "duration": 0.4326462837569006,
-      "start_time": 18.95540466028037,
-      "speaker_id": "2093"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2093/cough/0107.wav",
-      "duration": 0.6304567815439484,
-      "start_time": 30.187787310019406,
-      "speaker_id": "2093"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043396.json b/conversations/conv_043396.json
deleted file mode 100644
index 5ff779b8b90c5b78bde3d3ca2f557e80f8b6c1ae..0000000000000000000000000000000000000000
--- a/conversations/conv_043396.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.26865549481213,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0419017019443526,
-      "duration": 3.0419017019443526,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.4292848280413057,
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-      "overlap": false,
-      "utterance_id": "4693-17508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4693-17508.flac |",
-      "real_speaker_id": "4693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.229953454126926,
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-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 48670
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.305629978435576,
-      "end_time": 22.68065498800886,
-      "duration": 6.375025009573283,
-      "start_frame": 260890,
-      "duration_frames": 102000,
-      "overlap": false,
-      "utterance_id": "7962-110061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.185738184432108,
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-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 144513
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.7415306137854,
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-      "duration_frames": 40433,
-      "overlap": true,
-      "utterance_id": "4693-28003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4693-28003.flac |",
-      "real_speaker_id": "4693",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_043400.json b/conversations/conv_043400.json
deleted file mode 100644
index d8bc0ccbf2861313121d78c2532df24a279775e1..0000000000000000000000000000000000000000
--- a/conversations/conv_043400.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.918288661964258,
-      "duration": 4.918288661964258,
-      "start_frame": 0,
-      "duration_frames": 78692,
-      "overlap": false,
-      "utterance_id": "8138-293531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293531.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.8497451374251925,
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-      "start_frame": 77595,
-      "duration_frames": 100575,
-      "overlap": true,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.443765009306695,
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-      "duration_frames": 69033,
-      "overlap": true,
-      "utterance_id": "398-130093",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-130093.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 100575
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "398-123602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-123602.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.2593420191721023,
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-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 197707
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Cat",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_043407.json b/conversations/conv_043407.json
deleted file mode 100644
index 7425a74290732a58ef531b0f063822544b78e68e..0000000000000000000000000000000000000000
--- a/conversations/conv_043407.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.3723336644455255,
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-      "start_frame": 0,
-      "duration_frames": 85957,
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\ No newline at end of file
diff --git a/conversations/conv_043411.json b/conversations/conv_043411.json
deleted file mode 100644
index 399a96c13efa27d4640e89180ca87839ee8e011f..0000000000000000000000000000000000000000
--- a/conversations/conv_043411.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-302581.flac |",
-      "real_speaker_id": "6248",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 102790
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_043416.json b/conversations/conv_043416.json
deleted file mode 100644
index 17a30e965e4f3e423f9b6bf824425e0b1c1e6b98..0000000000000000000000000000000000000000
--- a/conversations/conv_043416.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-141422.flac |",
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-      "real_speaker_id": "474",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-232057.flac |",
-      "real_speaker_id": "6458",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_043420.json b/conversations/conv_043420.json
deleted file mode 100644
index e2546d39b7375d3fa65baa5b24bea32084728f91..0000000000000000000000000000000000000000
--- a/conversations/conv_043420.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_043436.json b/conversations/conv_043436.json
deleted file mode 100644
index 1a981835291da8ae224922c3f2d9ec6c0f49e4e8..0000000000000000000000000000000000000000
--- a/conversations/conv_043436.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.850678450941338,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_043441.json b/conversations/conv_043441.json
deleted file mode 100644
index d59a1162c490a4f1aae13e8d55e6291f2e111e9b..0000000000000000000000000000000000000000
--- a/conversations/conv_043441.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_043446.json b/conversations/conv_043446.json
deleted file mode 100644
index a43c87ab6092bfa55a46cef19d3e698075cfafb3..0000000000000000000000000000000000000000
--- a/conversations/conv_043446.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_043450.json b/conversations/conv_043450.json
deleted file mode 100644
index e09925303ddd8af2b49acefd8144f7c24bda2f78..0000000000000000000000000000000000000000
--- a/conversations/conv_043450.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1601/laugh/0023.wav",
-      "duration": 0.6080853403266728,
-      "start_time": 24.229489100778824,
-      "speaker_id": "1601"
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "1633"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043457.json b/conversations/conv_043457.json
deleted file mode 100644
index 78fb9e7c8c198e00068bded5a7d89f20d43b68c3..0000000000000000000000000000000000000000
--- a/conversations/conv_043457.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.491678166302238,
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-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
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-      "segment_id": "seg0002",
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-      "start_time": 10.120525449679125,
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-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
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-      "position_frames": 153217
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.575514239490358,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126277.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.334511212662406,
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-      "utterance_id": "3647-180300",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-180300.flac |",
-      "real_speaker_id": "3647",
-      "position_frames": 0
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-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 218016
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "4420"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043461.json b/conversations/conv_043461.json
deleted file mode 100644
index 5ae561c2fda6708a356406d9ca41e80caad81097..0000000000000000000000000000000000000000
--- a/conversations/conv_043461.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 100960
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 172602
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 265442
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 359030
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_043477.json b/conversations/conv_043477.json
deleted file mode 100644
index ee4b897f702527dfc63403bb6df8ab70c9072d53..0000000000000000000000000000000000000000
--- a/conversations/conv_043477.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.479809488254258,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "6892",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.59102286492324,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2985-153202.flac |",
-      "real_speaker_id": "2985",
-      "position_frames": 69104
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-  ],
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-      "event_class": "Running_water",
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-      "start_time": 30.88,
-      "speaker_id": "2985"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043482.json b/conversations/conv_043482.json
deleted file mode 100644
index cc360dbf862c3704503e12dae2fea7108ae793f9..0000000000000000000000000000000000000000
--- a/conversations/conv_043482.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1859-145701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145701.flac |",
-      "real_speaker_id": "1859",
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-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-70756.flac |",
-      "real_speaker_id": "6574",
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-      "utterance_id": "6548-65924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-65924.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_043483.json b/conversations/conv_043483.json
deleted file mode 100644
index fff26761c3756e3af40b18dc928e826e103b98d9..0000000000000000000000000000000000000000
--- a/conversations/conv_043483.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_043493.json b/conversations/conv_043493.json
deleted file mode 100644
index e866e248fb3654cf136c04b05b358b3a8634232d..0000000000000000000000000000000000000000
--- a/conversations/conv_043493.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 0
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-      "position_frames": 95796
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\ No newline at end of file
diff --git a/conversations/conv_043494.json b/conversations/conv_043494.json
deleted file mode 100644
index eec49a3e9f0ac730422b20431cf4779d84deabe2..0000000000000000000000000000000000000000
--- a/conversations/conv_043494.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_043498.json b/conversations/conv_043498.json
deleted file mode 100644
index 1593d2920edc46fd50394fb5dc994a6356b0919d..0000000000000000000000000000000000000000
--- a/conversations/conv_043498.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": "4191"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 22.576917024951857,
-      "speaker_id": "806"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5361/laugh/0134.wav",
-      "duration": 1.3253993013905245,
-      "start_time": 29.756341254631913,
-      "speaker_id": "5361"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043503.json b/conversations/conv_043503.json
deleted file mode 100644
index ab7040ae833c4ab6387af3ae379f7009057d861a..0000000000000000000000000000000000000000
--- a/conversations/conv_043503.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.67936231271781,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "922-132300",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132300.flac |",
-      "real_speaker_id": "922",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.567666253628701,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132291.flac |",
-      "real_speaker_id": "922",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-38660.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132300.flac |",
-      "real_speaker_id": "922",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 63211
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.65161357484789,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-38660.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 55875
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
-      "duration": 4.657207419699621,
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-    {
-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-      "speaker_id": "4800"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043504.json b/conversations/conv_043504.json
deleted file mode 100644
index 33c1bd6e31ccc49b86294856d7664a55528f614f..0000000000000000000000000000000000000000
--- a/conversations/conv_043504.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286681.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66278.flac |",
-      "real_speaker_id": "7197",
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-      "segment_id": "seg0002",
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-      "utterance_id": "8324-286681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286681.flac |",
-      "real_speaker_id": "8324",
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.958589912489995,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 53923
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.35306631079502,
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-      "overlap": false,
-      "utterance_id": "8324-286681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286681.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 169774
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.005429586493783,
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-      "utterance_id": "7197-66278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66278.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 71331
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_6.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8324/laugh/0003.wav",
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-      "speaker_id": "8324"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043508.json b/conversations/conv_043508.json
deleted file mode 100644
index ac2315462de2aefc4fca509880bcbd9878422b83..0000000000000000000000000000000000000000
--- a/conversations/conv_043508.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132014.flac |",
-      "real_speaker_id": "404",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132015.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 22.568678800590426,
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-      "utterance_id": "202-130622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-130622.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "404-132013",
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-      "real_speaker_id": "404",
-      "position_frames": 96261
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "real_speaker_id": "464",
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 17.73302266039952,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/202/laugh/0007.wav",
-      "duration": 1.24,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "404"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043512.json b/conversations/conv_043512.json
deleted file mode 100644
index 1aefd0e3b5d98ab9ee819e1a1e6a31b1b684dc47..0000000000000000000000000000000000000000
--- a/conversations/conv_043512.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.444685624263432,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
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-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 58121
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.818061520494107,
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-      "utterance_id": "451-126826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126826.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.33754305979668,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 134382
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.04329183482872,
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-      "utterance_id": "451-126829",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126829.flac |",
-      "real_speaker_id": "451",
-      "position_frames": 88983
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "start_time": 1.670895918485689
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 4.234272950926386,
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3587/cough/0114.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3587/cough/0030.wav",
-      "duration": 1.16,
-      "start_time": 14.700886042501804,
-      "speaker_id": "3587"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/451/cough/0025.wav",
-      "duration": 0.3362487133201799,
-      "start_time": 20.480031189399796,
-      "speaker_id": "451"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/451/laugh/0066.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "451"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043515.json b/conversations/conv_043515.json
deleted file mode 100644
index 2b4750e713a5bd0ea175867ec8cb19909e935485..0000000000000000000000000000000000000000
--- a/conversations/conv_043515.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.231273469127173,
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-      "duration_frames": 83700,
-      "overlap": false,
-      "utterance_id": "1819-144402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144402.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.720762771865111,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "8208-256239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256239.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "3060-163542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163542.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1819-144402.flac |",
-      "real_speaker_id": "1819",
-      "position_frames": 83700
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8208-256238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.258346203307593,
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-      "utterance_id": "3060-163499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163499.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "3060"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043524.json b/conversations/conv_043524.json
deleted file mode 100644
index 04c986538aa343c82dfb959c7a670d2d2c647171..0000000000000000000000000000000000000000
--- a/conversations/conv_043524.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7061-85640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-85640.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-280382.flac |",
-      "real_speaker_id": "8014",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.395709569079333,
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-      "duration_frames": 81966,
-      "overlap": false,
-      "utterance_id": "7061-85640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7061-85640.flac |",
-      "real_speaker_id": "7061",
-      "position_frames": 80221
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.91739726261202,
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-      "utterance_id": "8014-112602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-112602.flac |",
-      "real_speaker_id": "8014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.226758642724185,
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-      "utterance_id": "5220-69519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5220-69519.flac |",
-      "real_speaker_id": "5220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.354254072154717,
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-      "duration": 3.645745927845283,
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-      "duration_frames": 58331,
-      "overlap": false,
-      "utterance_id": "8014-112586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-112586.flac |",
-      "real_speaker_id": "8014",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_043528.json b/conversations/conv_043528.json
deleted file mode 100644
index 19642b39259d004f04ba447c608baf5a9b58d09d..0000000000000000000000000000000000000000
--- a/conversations/conv_043528.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.778212919274047,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.3907342135214655,
-      "duration": 5.3907342135214655,
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-      "overlap": false,
-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.677250658746788,
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-      "utterance_id": "2256-137627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137627.flac |",
-      "real_speaker_id": "2256",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6590-64282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64282.flac |",
-      "real_speaker_id": "6590",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.243370714602765,
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-      "utterance_id": "6807-106437",
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 30.76443944252501,
-      "speaker_id": "6807"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043529.json b/conversations/conv_043529.json
deleted file mode 100644
index bb8583e24ff21127defafda034b846d6faa02d6f..0000000000000000000000000000000000000000
--- a/conversations/conv_043529.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.526555458295842,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.540255864947338,
-      "duration": 4.540255864947338,
-      "start_frame": 0,
-      "duration_frames": 72644,
-      "overlap": false,
-      "utterance_id": "6177-75790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6177-75790.flac |",
-      "real_speaker_id": "6177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.209216651652591,
-      "end_time": 7.658447413356377,
-      "duration": 3.4492307617037863,
-      "start_frame": 67347,
-      "duration_frames": 55187,
-      "overlap": true,
-      "utterance_id": "6177-22698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6177-22698.flac |",
-      "real_speaker_id": "6177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.55607757819753,
-      "end_time": 14.017785002827452,
-      "duration": 5.461707424629923,
-      "start_frame": 136897,
-      "duration_frames": 87387,
-      "overlap": true,
-      "utterance_id": "7802-104394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104394.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.52600875580243,
-      "end_time": 20.869382024675076,
-      "duration": 5.3433732688726465,
-      "start_frame": 248416,
-      "duration_frames": 85493,
-      "overlap": false,
-      "utterance_id": "6284-63091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.37590132877918,
-      "end_time": 25.544947425628635,
-      "duration": 4.1690460968494545,
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-      "overlap": false,
-      "utterance_id": "7802-104391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104391.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.340843064658333,
-      "end_time": 30.526555458295842,
-      "duration": 4.185712393637508,
-      "start_frame": 421453,
-      "duration_frames": 66971,
-      "overlap": false,
-      "utterance_id": "6177-22698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6177-22698.flac |",
-      "real_speaker_id": "6177",
-      "position_frames": 55187
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
-      "duration": 2.236575963718821,
-      "start_time": 18.880379877701206
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
-      "duration": 1.9250150170905145,
-      "start_time": 15.634103184688767
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6177/laugh/0112.wav",
-      "duration": 0.6342994171552099,
-      "start_time": 3.3858132931274008,
-      "speaker_id": "6177"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6284/cough/0066.wav",
-      "duration": 1.0997500361931534,
-      "start_time": 14.333414544535591,
-      "speaker_id": "6284"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7802/laugh/0107.wav",
-      "duration": 1.64,
-      "start_time": 19.524246511532493,
-      "speaker_id": "7802"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043532.json b/conversations/conv_043532.json
deleted file mode 100644
index c228f871cbb632b30fa93c91afb9d5fea6397c2b..0000000000000000000000000000000000000000
--- a/conversations/conv_043532.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
-      "real_speaker_id": "2843",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.957161091244255,
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-      "utterance_id": "1485-121385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-121385.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.4282866730741,
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-      "duration": 5.720168414459892,
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-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
-      "real_speaker_id": "2843",
-      "position_frames": 63975
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.33011223350667,
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-      "duration_frames": 64339,
-      "overlap": false,
-      "utterance_id": "6609-111356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6609-111356.flac |",
-      "real_speaker_id": "6609",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.824982727922077,
-      "end_time": 27.671532283384238,
-      "duration": 6.846549555462161,
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-      "overlap": false,
-      "utterance_id": "1485-139314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-139314.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.464081565616894,
-      "end_time": 32.0,
-      "duration": 3.535918434383106,
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-      "overlap": false,
-      "utterance_id": "6609-111351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6609-111351.flac |",
-      "real_speaker_id": "6609",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "duration": 0.9787454587542097,
-      "start_time": 25.005920730881687,
-      "speaker_id": "1485"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6609/laugh/0040.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "6609"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6609/cough/0045.wav",
-      "duration": 0.8090881478911922,
-      "start_time": 27.467619891494664,
-      "speaker_id": "6609"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043539.json b/conversations/conv_043539.json
deleted file mode 100644
index 22b410093d4004ee7826f485f7a37386628d6b53..0000000000000000000000000000000000000000
--- a/conversations/conv_043539.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8443-274756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-274756.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.871640827070694,
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-      "overlap": false,
-      "utterance_id": "1027-125140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.338887622361394,
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-      "utterance_id": "458-126294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126294.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.549137791343096,
-      "end_time": 21.38883087843355,
-      "duration": 6.8396930870904535,
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-      "duration_frames": 109435,
-      "overlap": false,
-      "utterance_id": "1027-125140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 62482
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.89615744327857,
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-      "utterance_id": "1027-125140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 171917
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.703435831817494,
-      "end_time": 32.0,
-      "duration": 4.296564168182506,
-      "start_frame": 443254,
-      "duration_frames": 68745,
-      "overlap": false,
-      "utterance_id": "8443-294707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
-      "duration": 0.4758730158730159,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
-      "duration": 0.23598639455782314,
-      "start_time": 1.9451279402837292
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_043542.json b/conversations/conv_043542.json
deleted file mode 100644
index 57e17e99ae7157a9e2878d5b777c5a7e529a1073..0000000000000000000000000000000000000000
--- a/conversations/conv_043542.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.32533379053759,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.238034842592119,
-      "duration": 3.238034842592119,
-      "start_frame": 0,
-      "duration_frames": 51808,
-      "overlap": false,
-      "utterance_id": "1161-135206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.546999677080953,
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-      "duration": 4.617298569556849,
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-      "overlap": false,
-      "utterance_id": "1734-142311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.77475112593715,
-      "end_time": 14.95340770570369,
-      "duration": 6.17865657976654,
-      "start_frame": 140396,
-      "duration_frames": 98858,
-      "overlap": false,
-      "utterance_id": "1161-135206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
-      "position_frames": 51808
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.068609072900866,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
-      "position_frames": 73876
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1161",
-      "position_frames": 150666
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1161-135206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
-      "position_frames": 223900
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-      "start_time": 30.66,
-      "speaker_id": "1161"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043545.json b/conversations/conv_043545.json
deleted file mode 100644
index a967aa088599580cf9eda47be21d509fe2010088..0000000000000000000000000000000000000000
--- a/conversations/conv_043545.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.28073920143703,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.770703121581856,
-      "duration": 4.770703121581856,
-      "start_frame": 0,
-      "duration_frames": 76331,
-      "overlap": false,
-      "utterance_id": "6828-68770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.2211494884818554,
-      "end_time": 12.169183048947783,
-      "duration": 6.9480335604659285,
-      "start_frame": 83538,
-      "duration_frames": 111168,
-      "overlap": true,
-      "utterance_id": "8879-300343",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300343.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.564380207369313,
-      "end_time": 18.7607170146631,
-      "duration": 5.19633680729379,
-      "start_frame": 217030,
-      "duration_frames": 83141,
-      "overlap": true,
-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.15644514378574,
-      "end_time": 25.506203561633008,
-      "duration": 5.349758417847269,
-      "start_frame": 322503,
-      "duration_frames": 85596,
-      "overlap": false,
-      "utterance_id": "6818-68772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.67394479351595,
-      "end_time": 31.28073920143703,
-      "duration": 5.606794407921077,
-      "start_frame": 410783,
-      "duration_frames": 89708,
-      "overlap": false,
-      "utterance_id": "8879-300234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300234.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_1.wav",
-      "duration": 2.6342641758510728,
-      "start_time": 21.77908617629831
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8879/laugh/0091.wav",
-      "duration": 1.12,
-      "start_time": 12.298935661227777,
-      "speaker_id": "8879"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043549.json b/conversations/conv_043549.json
deleted file mode 100644
index 60a19ae05d600384e15bf8bbdf0ffeac8f256c4a..0000000000000000000000000000000000000000
--- a/conversations/conv_043549.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.41228639091938,
-      "duration": 4.41228639091938,
-      "start_frame": 0,
-      "duration_frames": 70596,
-      "overlap": false,
-      "utterance_id": "3179-7153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7153.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.198496098827059,
-      "end_time": 10.973352117527773,
-      "duration": 5.774856018700714,
-      "start_frame": 83175,
-      "duration_frames": 92397,
-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.166196474229697,
-      "end_time": 14.564887982137288,
-      "duration": 3.398691507907591,
-      "start_frame": 178659,
-      "duration_frames": 54379,
-      "overlap": false,
-      "utterance_id": "6199-64259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-64259.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.135840571424335,
-      "end_time": 18.606025195961678,
-      "duration": 4.4701846245373416,
-      "start_frame": 226173,
-      "duration_frames": 71522,
-      "overlap": true,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 92397
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.757804497828815,
-      "end_time": 23.538250205885568,
-      "duration": 3.780445708056752,
-      "start_frame": 316124,
-      "duration_frames": 60487,
-      "overlap": false,
-      "utterance_id": "3179-7142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3179-7142.flac |",
-      "real_speaker_id": "3179",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.878383935513348,
-      "end_time": 29.50135682930076,
-      "duration": 4.622972893787414,
-      "start_frame": 398054,
-      "duration_frames": 73967,
-      "overlap": false,
-      "utterance_id": "6199-48196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-48196.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.008739450269488,
-      "end_time": 32.0,
-      "duration": 1.9912605497305123,
-      "start_frame": 480139,
-      "duration_frames": 31860,
-      "overlap": false,
-      "utterance_id": "1733-139046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
-      "real_speaker_id": "1733",
-      "position_frames": 163919
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
-      "duration": 14.690997732426304,
-      "start_time": 0.977733979178146
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
-      "duration": 0.29401360544217686,
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
-      "duration": 0.6518367346938776,
-      "start_time": 13.343530079617
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3179/cough/0155.wav",
-      "duration": 1.2006801113930237,
-      "start_time": 20.883350160015052,
-      "speaker_id": "3179"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043553.json b/conversations/conv_043553.json
deleted file mode 100644
index 4dc570cca07189e40ee98bfca6a1251d816648f7..0000000000000000000000000000000000000000
--- a/conversations/conv_043553.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.636667914993616,
-      "duration": 5.636667914993616,
-      "start_frame": 0,
-      "duration_frames": 90186,
-      "overlap": false,
-      "utterance_id": "6705-74243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74243.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.3979443877277165,
-      "end_time": 10.856420961359355,
-      "duration": 4.458476573631637,
-      "start_frame": 102367,
-      "duration_frames": 71335,
-      "overlap": false,
-      "utterance_id": "337-123033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/337-123033.flac |",
-      "real_speaker_id": "337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.773005920216459,
-      "end_time": 16.326394483312004,
-      "duration": 4.553388563095544,
-      "start_frame": 188368,
-      "duration_frames": 72854,
-      "overlap": false,
-      "utterance_id": "337-123025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/337-123025.flac |",
-      "real_speaker_id": "337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.154508561059362,
-      "end_time": 20.115228124015598,
-      "duration": 3.9607195629562364,
-      "start_frame": 258472,
-      "duration_frames": 63371,
-      "overlap": true,
-      "utterance_id": "6705-74242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74242.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.261710084945534,
-      "end_time": 25.188987712198657,
-      "duration": 3.9272776272531233,
-      "start_frame": 340187,
-      "duration_frames": 62836,
-      "overlap": false,
-      "utterance_id": "337-123025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/337-123025.flac |",
-      "real_speaker_id": "337",
-      "position_frames": 72854
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.47979949644521,
-      "end_time": 32.0,
-      "duration": 5.52020050355479,
-      "start_frame": 423676,
-      "duration_frames": 88323,
-      "overlap": false,
-      "utterance_id": "337-123033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/337-123033.flac |",
-      "real_speaker_id": "337",
-      "position_frames": 71335
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
-      "duration": 0.4329251700680272,
-      "start_time": 9.685905295059039
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
-      "duration": 0.0936734693877551,
-      "start_time": 0.7207781412958767
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/337/laugh/0006.wav",
-      "duration": 1.2,
-      "start_time": 11.097984640584022,
-      "speaker_id": "337"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/337/laugh/0021.wav",
-      "duration": 1.16,
-      "start_time": 25.31023196418014,
-      "speaker_id": "337"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043554.json b/conversations/conv_043554.json
deleted file mode 100644
index 13fb1bdbde6f65d8b2a00b2d101b2fc27e543d8b..0000000000000000000000000000000000000000
--- a/conversations/conv_043554.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.201057548635852,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.311473165971954,
-      "duration": 4.311473165971954,
-      "start_frame": 0,
-      "duration_frames": 68983,
-      "overlap": false,
-      "utterance_id": "8664-292560",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-292560.flac |",
-      "real_speaker_id": "8664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.008382142476912,
-      "end_time": 9.875118410948865,
-      "duration": 4.8667362684719535,
-      "start_frame": 80134,
-      "duration_frames": 77867,
-      "overlap": false,
-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.092510835586436,
-      "end_time": 16.599116622255313,
-      "duration": 6.506605786668877,
-      "start_frame": 161480,
-      "duration_frames": 104105,
-      "overlap": false,
-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 77867
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.043118703840335,
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-      "duration": 4.98032154785684,
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-      "overlap": false,
-      "utterance_id": "8664-175359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-175359.flac |",
-      "real_speaker_id": "8664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.131227896549678,
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-      "utterance_id": "8664-295007",
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-      "real_speaker_id": "8664",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "589-146346",
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-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "duration_frames": 13216,
-      "overlap": true,
-      "utterance_id": "4748-28399",
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-  "background_events": [
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-    {
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-    {
-      "event_class": "Running_water",
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-    {
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-      "duration": 0.9135853627010944,
-      "start_time": 4.0185347968927285,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8664/cough/0098.wav",
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-      "speaker_id": "8664"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/589/cough/0010.wav",
-      "duration": 0.88,
-      "start_time": 26.582916042519212,
-      "speaker_id": "589"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043565.json b/conversations/conv_043565.json
deleted file mode 100644
index 51da56e70461565410c2d1242385a966d7861a55..0000000000000000000000000000000000000000
--- a/conversations/conv_043565.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_043569.json b/conversations/conv_043569.json
deleted file mode 100644
index 4bdce3d3706c4ceb1efe29f19035a7d47aef436a..0000000000000000000000000000000000000000
--- a/conversations/conv_043569.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47030.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47030.flac |",
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-      "position_frames": 0
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-      "position_frames": 0
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_043573.json b/conversations/conv_043573.json
deleted file mode 100644
index 140e3c968a68c1cbad8bb223b7fc8bdeb8067153..0000000000000000000000000000000000000000
--- a/conversations/conv_043573.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 67536
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_043586.json b/conversations/conv_043586.json
deleted file mode 100644
index 50bafe5bce39d1d8211acfbe32781d7f91227f87..0000000000000000000000000000000000000000
--- a/conversations/conv_043586.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-}
\ No newline at end of file
diff --git a/conversations/conv_043590.json b/conversations/conv_043590.json
deleted file mode 100644
index 3c22a063f6457b373adeb954a15ddca1280f7c08..0000000000000000000000000000000000000000
--- a/conversations/conv_043590.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.674620124935996,
-      "duration": 5.674620124935996,
-      "start_frame": 0,
-      "duration_frames": 90793,
-      "overlap": false,
-      "utterance_id": "937-121903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-121903.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.056524610190816,
-      "end_time": 10.405527366361067,
-      "duration": 4.349002756170252,
-      "start_frame": 96904,
-      "duration_frames": 69584,
-      "overlap": false,
-      "utterance_id": "7314-93277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-93277.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.934860826546597,
-      "end_time": 15.726022698747741,
-      "duration": 4.791161872201144,
-      "start_frame": 174957,
-      "duration_frames": 76658,
-      "overlap": false,
-      "utterance_id": "937-131548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-131548.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.429322989166973,
-      "end_time": 23.24506012666504,
-      "duration": 6.815737137498068,
-      "start_frame": 262869,
-      "duration_frames": 109051,
-      "overlap": false,
-      "utterance_id": "8143-278223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.897084491231688,
-      "end_time": 27.88325259145882,
-      "duration": 4.9861681002271325,
-      "start_frame": 366353,
-      "duration_frames": 79778,
-      "overlap": true,
-      "utterance_id": "7314-93277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7314-93277.flac |",
-      "real_speaker_id": "7314",
-      "position_frames": 69584
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.997558057318358,
-      "end_time": 32.0,
-      "duration": 3.002441942681642,
-      "start_frame": 463960,
-      "duration_frames": 48039,
-      "overlap": false,
-      "utterance_id": "937-148985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-148985.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
-      "duration": 23.016386082155158,
-      "start_time": 0.4201118634733051
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
-      "duration": 1.8364592757532585,
-      "start_time": 12.466266579601145
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
-      "duration": 0.6496145124716554,
-      "start_time": 13.895224708364529
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/937/laugh/0078.wav",
-      "duration": 1.3,
-      "start_time": 5.736903336313781,
-      "speaker_id": "937"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/937/cough/0129.wav",
-      "duration": 1.018142561383352,
-      "start_time": 30.981857438616647,
-      "speaker_id": "937"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043591.json b/conversations/conv_043591.json
deleted file mode 100644
index ee0d6414eb3d97f66c1ec117b044b493c3bd0e6b..0000000000000000000000000000000000000000
--- a/conversations/conv_043591.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.664312875703326,
-      "duration": 6.664312875703326,
-      "start_frame": 0,
-      "duration_frames": 106629,
-      "overlap": false,
-      "utterance_id": "7131-92815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7131-92815.flac |",
-      "real_speaker_id": "7131",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.5253582868204,
-      "end_time": 13.923315701373113,
-      "duration": 6.397957414552714,
-      "start_frame": 120405,
-      "duration_frames": 102367,
-      "overlap": false,
-      "utterance_id": "294-129973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-129973.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.26615165779012,
-      "end_time": 18.355997535624237,
-      "duration": 4.089845877834117,
-      "start_frame": 228258,
-      "duration_frames": 65437,
-      "overlap": true,
-      "utterance_id": "8119-115686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115686.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.215339001390838,
-      "end_time": 22.261361326753665,
-      "duration": 3.046022325362828,
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-      "duration_frames": 48736,
-      "overlap": false,
-      "utterance_id": "7131-75934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7131-75934.flac |",
-      "real_speaker_id": "7131",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.605656348242466,
-      "end_time": 26.722887606365546,
-      "duration": 3.1172312581230797,
-      "start_frame": 377690,
-      "duration_frames": 49875,
-      "overlap": false,
-      "utterance_id": "8119-115686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115686.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 65437
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.304666428657526,
-      "end_time": 32.0,
-      "duration": 4.6953335713424735,
-      "start_frame": 436874,
-      "duration_frames": 75125,
-      "overlap": false,
-      "utterance_id": "7131-92815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7131-92815.flac |",
-      "real_speaker_id": "7131",
-      "position_frames": 106629
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
-      "duration": 2.497155665915562,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8119/laugh/0042.wav",
-      "duration": 1.16,
-      "start_time": 12.873166517803961,
-      "speaker_id": "8119"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7131/laugh/0027.wav",
-      "duration": 0.6417466720512268,
-      "start_time": 22.522505753193553,
-      "speaker_id": "7131"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7131/cough/0113.wav",
-      "duration": 1.3251977716508812,
-      "start_time": 22.388265541281303,
-      "speaker_id": "7131"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8119/laugh/0057.wav",
-      "duration": 0.8600830341050311,
-      "start_time": 23.92194966912356,
-      "speaker_id": "8119"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043600.json b/conversations/conv_043600.json
deleted file mode 100644
index ac35a3a8a50531e5aa476aa6f4c308b2401e058f..0000000000000000000000000000000000000000
--- a/conversations/conv_043600.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.161124832388474,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.853412884534356,
-      "duration": 6.853412884534356,
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-      "duration_frames": 109654,
-      "overlap": false,
-      "utterance_id": "4205-11977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.189695085729734,
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-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.26309832854012,
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-      "utterance_id": "4205-11977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 109654
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.13118644597876,
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-      "overlap": true,
-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 59079
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.90125272723796,
-      "end_time": 25.757187096067515,
-      "duration": 4.855934368829555,
-      "start_frame": 334420,
-      "duration_frames": 77694,
-      "overlap": false,
-      "utterance_id": "4205-11977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 201193
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.077465853728803,
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-      "duration": 6.08365897865967,
-      "start_frame": 401239,
-      "duration_frames": 97338,
-      "overlap": true,
-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 108414
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
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-      "start_time": 8.613294540873238
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4205/laugh/0023.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6963/laugh/0014.wav",
-      "duration": 1.04,
-      "start_time": 17.787902830211287,
-      "speaker_id": "6963"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043601.json b/conversations/conv_043601.json
deleted file mode 100644
index 633e4b3e8ccfed4ed01061c236544a7bb9ce2735..0000000000000000000000000000000000000000
--- a/conversations/conv_043601.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.339495138821178,
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-      "overlap": true,
-      "utterance_id": "2589-177234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-177234.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.140840537527831,
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-      "utterance_id": "1187-136241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136241.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "2589-177234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-177234.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 87815
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.402330263961076,
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-      "utterance_id": "2589-177234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2589-177234.flac |",
-      "real_speaker_id": "2589",
-      "position_frames": 186175
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.267088382942497,
-      "end_time": 32.0,
-      "duration": 2.7329116170575034,
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-      "overlap": false,
-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 94434
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2589/laugh/0057.wav",
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-      "start_time": 3.9259044792273508,
-      "speaker_id": "2589"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043617.json b/conversations/conv_043617.json
deleted file mode 100644
index 8411deb3d969b04d1a7f628a05c77c43e983fab3..0000000000000000000000000000000000000000
--- a/conversations/conv_043617.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_043621.json b/conversations/conv_043621.json
deleted file mode 100644
index 274e4e849bd50ea61dd1b36bc76b7ab2db83962e..0000000000000000000000000000000000000000
--- a/conversations/conv_043621.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.660621574594693,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70974.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_043637.json b/conversations/conv_043637.json
deleted file mode 100644
index 8ae68e1e69ea1852549658e74caf5bf13376a637..0000000000000000000000000000000000000000
--- a/conversations/conv_043637.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6317-54487.flac |",
-      "real_speaker_id": "6317",
-      "position_frames": 98061
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1737-142396",
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-      "position_frames": 0
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_043640.json b/conversations/conv_043640.json
deleted file mode 100644
index efad35c5d5f983bc88a277318abe5cb364c9e548..0000000000000000000000000000000000000000
--- a/conversations/conv_043640.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6614-67846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67846.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "6685",
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-}
\ No newline at end of file
diff --git a/conversations/conv_043656.json b/conversations/conv_043656.json
deleted file mode 100644
index eaac2478c6d33c0613ba0ce248c5b3daca08a102..0000000000000000000000000000000000000000
--- a/conversations/conv_043656.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
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\ No newline at end of file
diff --git a/conversations/conv_043657.json b/conversations/conv_043657.json
deleted file mode 100644
index 1f73103b1093b38bd7a63b7673211820e4d104a4..0000000000000000000000000000000000000000
--- a/conversations/conv_043657.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_043660.json b/conversations/conv_043660.json
deleted file mode 100644
index 82abfe3593452041f6e40b541bbfbaf07fb564a8..0000000000000000000000000000000000000000
--- a/conversations/conv_043660.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_043676.json b/conversations/conv_043676.json
deleted file mode 100644
index 184f860f341674de080d96a89f4b401cd08a4d20..0000000000000000000000000000000000000000
--- a/conversations/conv_043676.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "start_time": 0,
-      "speaker_id": "7302"
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-      "start_time": 18.078293899496202,
-      "speaker_id": "1970"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043683.json b/conversations/conv_043683.json
deleted file mode 100644
index c84476be8afe7ef521d4737910995e7c0bde1132..0000000000000000000000000000000000000000
--- a/conversations/conv_043683.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "utterance_id": "730-360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-360.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1811-129443.flac |",
-      "real_speaker_id": "1811",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1811-129443.flac |",
-      "real_speaker_id": "1811",
-      "position_frames": 89007
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.187836178261456,
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-      "overlap": false,
-      "utterance_id": "730-358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-358.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.226549732093776,
-      "end_time": 32.0,
-      "duration": 2.773450267906224,
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-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 109671
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/730/laugh/0142.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "6804"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043684.json b/conversations/conv_043684.json
deleted file mode 100644
index 7f6a99cc6ce61508cfe30a9ba46191c064a83512..0000000000000000000000000000000000000000
--- a/conversations/conv_043684.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
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-      "position_frames": 0
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-    {
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-      "start_time": 3.9249736987476607,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 84960
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 159176
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.814799335591125,
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-      "utterance_id": "500-125123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 135107
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
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-    {
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-      "speaker_id": "500"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2208/laugh/0084.wav",
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-      "speaker_id": "2208"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043692.json b/conversations/conv_043692.json
deleted file mode 100644
index a4d16e1358a5264e04a53c2fba7a0a88d1eb1d59..0000000000000000000000000000000000000000
--- a/conversations/conv_043692.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7177-120275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-120275.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
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-      "speaker_id": 1,
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-      "real_speaker_id": "2712",
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-      "real_speaker_id": "7177",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7177-258965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258965.flac |",
-      "real_speaker_id": "7177",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-      "speaker_id": "2712"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043694.json b/conversations/conv_043694.json
deleted file mode 100644
index c8f5d1b791ea51e3dc69f5bfea2f62db39e6615a..0000000000000000000000000000000000000000
--- a/conversations/conv_043694.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58195.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_043695.json b/conversations/conv_043695.json
deleted file mode 100644
index 1df8521972461099d857b198e3e9a231c51fbea8..0000000000000000000000000000000000000000
--- a/conversations/conv_043695.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.27259013310232,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157947.flac |",
-      "real_speaker_id": "2671",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_043699.json b/conversations/conv_043699.json
deleted file mode 100644
index 4569cf0274cc51f951ad8f83162a20edd2f1f2ef..0000000000000000000000000000000000000000
--- a/conversations/conv_043699.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_043705.json b/conversations/conv_043705.json
deleted file mode 100644
index e48f4969ea16dbf335a835a6dfefe9ebcbdd5d43..0000000000000000000000000000000000000000
--- a/conversations/conv_043705.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.30902922144187,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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-      "real_speaker_id": "8156",
-      "position_frames": 0
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-    {
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_043709.json b/conversations/conv_043709.json
deleted file mode 100644
index 3cf858264775391a0dcb714f80169736a247f95a..0000000000000000000000000000000000000000
--- a/conversations/conv_043709.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-      "real_speaker_id": "1222",
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-      "utterance_id": "6510-62516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6510-62516.flac |",
-      "real_speaker_id": "6510",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "speaker_id": "6510"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043712.json b/conversations/conv_043712.json
deleted file mode 100644
index c121a3291101e53d098fcdff7aa685e549180db7..0000000000000000000000000000000000000000
--- a/conversations/conv_043712.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.154186085733535,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-129208.flac |",
-      "real_speaker_id": "444",
-      "position_frames": 0
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-      "start_time": 5.800358999193672,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
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-      "speaker_id": 2,
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-      "utterance_id": "66-354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-354.flac |",
-      "real_speaker_id": "66",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.441590431625468,
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-      "utterance_id": "5565-40589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 58888
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.53217380369057,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-138076.flac |",
-      "real_speaker_id": "444",
-      "position_frames": 50321
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 30.96,
-      "speaker_id": "5565"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043713.json b/conversations/conv_043713.json
deleted file mode 100644
index 22e6a79347aa9a588917673fc258c1377f04197e..0000000000000000000000000000000000000000
--- a/conversations/conv_043713.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6788-111574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-111574.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "real_speaker_id": "3592",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6788-96241.flac |",
-      "real_speaker_id": "6788",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.705029517505103,
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-      "duration": 2.2949704824948967,
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-      "utterance_id": "3373-174981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174981.flac |",
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-      "position_frames": 85031
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-  "background_events": [],
-  "foreground_events": [
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-    {
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-      "duration": 1.16,
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-      "event_class": "laugh",
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-      "duration": 1.18,
-      "start_time": 30.82,
-      "speaker_id": "3373"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043725.json b/conversations/conv_043725.json
deleted file mode 100644
index 9c8dc660149b00f11a97821e41f55442193e74de..0000000000000000000000000000000000000000
--- a/conversations/conv_043725.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_frame": 0,
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "2514",
-      "position_frames": 94406
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "8063",
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-    {
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-      "real_speaker_id": "7126",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8063-274112",
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "8063"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043729.json b/conversations/conv_043729.json
deleted file mode 100644
index 402925e4e3285d6d87c61782dfc7437658ef92aa..0000000000000000000000000000000000000000
--- a/conversations/conv_043729.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7644-104722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 69858
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.505272239327503,
-      "end_time": 32.0,
-      "duration": 1.4947277606724967,
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-      "utterance_id": "5157-47237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47237.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7644/laugh/0040.wav",
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-      "start_time": 1.1629569804610844,
-      "speaker_id": "7644"
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-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 31.04,
-      "speaker_id": "5157"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043733.json b/conversations/conv_043733.json
deleted file mode 100644
index 78ae01aba3662c11e3f0ee15479a909bd9e6bf91..0000000000000000000000000000000000000000
--- a/conversations/conv_043733.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.353877119801986,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5577428194590093,
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-      "overlap": false,
-      "utterance_id": "4054-11077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4054-11077.flac |",
-      "real_speaker_id": "4054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.6625401674220734,
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-      "duration": 5.559363687185103,
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-      "utterance_id": "7395-89880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7395-89880.flac |",
-      "real_speaker_id": "7395",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-276939.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-276939.flac |",
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-      "real_speaker_id": "4054",
-      "position_frames": 120662
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_043738.json b/conversations/conv_043738.json
deleted file mode 100644
index 95ef1559592cf9361b59a0b9f4fd45c56aad174f..0000000000000000000000000000000000000000
--- a/conversations/conv_043738.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "4211-3835",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4211-3835.flac |",
-      "real_speaker_id": "4211",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4576-66268.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-48196.flac |",
-      "real_speaker_id": "6199",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6199-64259",
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-      "real_speaker_id": "6199",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043744.json b/conversations/conv_043744.json
deleted file mode 100644
index 65d531c671337302dc509cf0ffd743e24a5c6f40..0000000000000000000000000000000000000000
--- a/conversations/conv_043744.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/374-180298.flac |",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1693/laugh/0043.wav",
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-      "start_time": 30.196499172214725,
-      "speaker_id": "374"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043745.json b/conversations/conv_043745.json
deleted file mode 100644
index 6a97e553cffd3a0aca0d2271fa904bc11f25e196..0000000000000000000000000000000000000000
--- a/conversations/conv_043745.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5984-56840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56840.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.214363474298173,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "5984-56837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56837.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.089326263765773,
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-      "utterance_id": "7687-107687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7687-107687.flac |",
-      "real_speaker_id": "7687",
-      "position_frames": 103962
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.591688094822807,
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-      "overlap": false,
-      "utterance_id": "5984-63095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-63095.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.23594854260436,
-      "end_time": 32.0,
-      "duration": 4.764051457395642,
-      "start_frame": 435775,
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-      "overlap": false,
-      "utterance_id": "2273-152357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2273-152357.flac |",
-      "real_speaker_id": "2273",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "2273"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043748.json b/conversations/conv_043748.json
deleted file mode 100644
index ffa04f5c43bee81b347e467ac44dd0e438d65662..0000000000000000000000000000000000000000
--- a/conversations/conv_043748.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.341510570009824,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-56723.flac |",
-      "real_speaker_id": "5038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.117751898764446,
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-      "overlap": true,
-      "utterance_id": "5038-56723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-56723.flac |",
-      "real_speaker_id": "5038",
-      "position_frames": 80054
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6019-3185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_043752.json b/conversations/conv_043752.json
deleted file mode 100644
index 698b0ae78a89f15ea7b1521fdf67d13993e170c4..0000000000000000000000000000000000000000
--- a/conversations/conv_043752.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7525-92915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-92915.flac |",
-      "real_speaker_id": "7525",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67200.flac |",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3551-7884.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_043764.json b/conversations/conv_043764.json
deleted file mode 100644
index 9760a5a283b8cd46a3186a0de542346b289d1e2b..0000000000000000000000000000000000000000
--- a/conversations/conv_043764.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7835-97730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7348",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7348-86748.flac |",
-      "real_speaker_id": "7348",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  ],
-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
-      "duration": 0.6165759637188208,
-      "start_time": 19.37030835858858
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7835/laugh/0008.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "7835"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7835/laugh/0084.wav",
-      "duration": 0.820851344813348,
-      "start_time": 18.04997728623086,
-      "speaker_id": "7835"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043768.json b/conversations/conv_043768.json
deleted file mode 100644
index dfd6e2027f471f1ef1acb5857835fd419be51904..0000000000000000000000000000000000000000
--- a/conversations/conv_043768.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.1399310038256765,
-      "duration": 3.1399310038256765,
-      "start_frame": 0,
-      "duration_frames": 50238,
-      "overlap": false,
-      "utterance_id": "613-121900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-121900.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.550266383665989,
-      "end_time": 8.435363749209714,
-      "duration": 4.885097365543724,
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-      "duration_frames": 78161,
-      "overlap": false,
-      "utterance_id": "152-132799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-132799.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.655299985191098,
-      "end_time": 12.586795279563992,
-      "duration": 3.931495294372894,
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-      "duration_frames": 62903,
-      "overlap": true,
-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.546688904607105,
-      "end_time": 19.637582447600042,
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-      "duration_frames": 97454,
-      "overlap": false,
-      "utterance_id": "613-121900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-121900.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 50238
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.01058617000193,
-      "end_time": 26.446176558941232,
-      "duration": 5.435590388939303,
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-      "overlap": false,
-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 62903
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.083297982225226,
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-      "duration": 4.9167020177747744,
-      "start_frame": 433332,
-      "duration_frames": 78667,
-      "overlap": false,
-      "utterance_id": "613-121900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-121900.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 147692
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 0,
-      "speaker_id": "613"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/152/cough/0127.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.056530609573157,
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-      "speaker_id": "7423"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/613/laugh/0043.wav",
-      "duration": 1.7576831828076327,
-      "start_time": 11.721122328570125,
-      "speaker_id": "613"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043772.json b/conversations/conv_043772.json
deleted file mode 100644
index f1b21375f633c096524521b1214245ac66ee37b8..0000000000000000000000000000000000000000
--- a/conversations/conv_043772.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.55620090831357,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7148-82991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-82991.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 6.018272164557197,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "7148-7763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-7763.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.40467183084019,
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-      "duration_frames": 81037,
-      "overlap": true,
-      "utterance_id": "8057-271826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8057-271826.flac |",
-      "real_speaker_id": "8057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.85622897369185,
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-      "overlap": false,
-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 111099
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "8057"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043779.json b/conversations/conv_043779.json
deleted file mode 100644
index c48b100ac201f2268ba39f354c587eca6ad1285d..0000000000000000000000000000000000000000
--- a/conversations/conv_043779.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6077-56146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-56146.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.879480256865664,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58756.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6077-56146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-56146.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 83782
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "position_frames": 90973
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.651149017547933,
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-      "duration": 2.348850982452067,
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-      "duration_frames": 37581,
-      "overlap": false,
-      "utterance_id": "7285-72200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72200.flac |",
-      "real_speaker_id": "7285",
-      "position_frames": 67452
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "7285"
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-}
\ No newline at end of file
diff --git a/conversations/conv_043780.json b/conversations/conv_043780.json
deleted file mode 100644
index 37d358e5e61fe026110a2a425be7a25221867bdc..0000000000000000000000000000000000000000
--- a/conversations/conv_043780.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.652169903354583,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7434-75939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-75939.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.570348282219763,
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-      "real_speaker_id": "2990",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2990-6534",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-96672.flac |",
-      "real_speaker_id": "7434",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2990/laugh/0118.wav",
-      "duration": 1.12,
-      "start_time": 8.524966633403842,
-      "speaker_id": "2990"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7434/cough/0054.wav",
-      "duration": 0.38858120510068267,
-      "start_time": 28.052800366905323,
-      "speaker_id": "7434"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043787.json b/conversations/conv_043787.json
deleted file mode 100644
index eaedf3425d3a995a1abee364ea1f2655001c30fb..0000000000000000000000000000000000000000
--- a/conversations/conv_043787.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.136496600155635,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6102-56178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56178.flac |",
-      "real_speaker_id": "6102",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.176670893221862,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.383804968272267,
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-      "duration": 4.257017906613266,
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-      "overlap": true,
-      "utterance_id": "2294-161714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161714.flac |",
-      "real_speaker_id": "2294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.921770629952594,
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-      "duration": 3.4561449762784364,
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-      "duration_frames": 55298,
-      "overlap": false,
-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 80537
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.103505585878185,
-      "end_time": 26.284030077919727,
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-      "duration_frames": 66888,
-      "overlap": false,
-      "utterance_id": "6102-56178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6102-56178.flac |",
-      "real_speaker_id": "6102",
-      "position_frames": 106918
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.132641102123518,
-      "end_time": 31.136496600155635,
-      "duration": 5.003855498032117,
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-      "duration_frames": 80061,
-      "overlap": true,
-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 135835
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "start_time": 1.044347417341024
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6102/laugh/0031.wav",
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-      "speaker_id": "6102"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043791.json b/conversations/conv_043791.json
deleted file mode 100644
index 7e73393cd7e96c534198f926fce48ea7855dc651..0000000000000000000000000000000000000000
--- a/conversations/conv_043791.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3370-724",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-724.flac |",
-      "real_speaker_id": "3370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.317879868316284,
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-      "utterance_id": "5322-7680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5322-7680.flac |",
-      "real_speaker_id": "5322",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-724.flac |",
-      "real_speaker_id": "3370",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "6883-79964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6883-79964.flac |",
-      "real_speaker_id": "6883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5322-7678",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5322-7678.flac |",
-      "real_speaker_id": "5322",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.239283694417978,
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-      "duration_frames": 67173,
-      "overlap": false,
-      "utterance_id": "5322-7680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5322-7680.flac |",
-      "real_speaker_id": "5322",
-      "position_frames": 72747
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.627335362521332,
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-      "duration": 0.3726646374786675,
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-      "utterance_id": "3370-756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3370-756.flac |",
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5322/cough/0090.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043796.json b/conversations/conv_043796.json
deleted file mode 100644
index 7b1fd3f22afc0f9fedc052e09bdff090756a1e07..0000000000000000000000000000000000000000
--- a/conversations/conv_043796.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8312-279790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279790.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.599258737824999,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1225-129802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129802.flac |",
-      "real_speaker_id": "1225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.697957011716847,
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-      "start_frame": 235167,
-      "duration_frames": 56857,
-      "overlap": true,
-      "utterance_id": "1225-129526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129526.flac |",
-      "real_speaker_id": "1225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.066341540405837,
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-      "utterance_id": "8312-279790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279790.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 83275
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 65853,
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-      "utterance_id": "1225-129527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129527.flac |",
-      "real_speaker_id": "1225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.978898432328727,
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-      "overlap": false,
-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 75297
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6792/cough/0114.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8312/cough/0069.wav",
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-      "speaker_id": "8312"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043800.json b/conversations/conv_043800.json
deleted file mode 100644
index 31ffa4952ae3ce1d875895653e1eaa62166c24f4..0000000000000000000000000000000000000000
--- a/conversations/conv_043800.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1230-1060",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-1060.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2582",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "5569",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 86205
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1230/laugh/0047.wav",
-      "duration": 1.32,
-      "start_time": 4.004110099301295,
-      "speaker_id": "1230"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1230/cough/0006.wav",
-      "duration": 0.6108516033100395,
-      "start_time": 0,
-      "speaker_id": "1230"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1230/laugh/0112.wav",
-      "duration": 1.06,
-      "start_time": 28.045032272833414,
-      "speaker_id": "1230"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5569/laugh/0034.wav",
-      "duration": 1.32,
-      "start_time": 27.036871859895378,
-      "speaker_id": "5569"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043807.json b/conversations/conv_043807.json
deleted file mode 100644
index 6e8953a3044f56bc6cea7134abc69ad63cd3eb8f..0000000000000000000000000000000000000000
--- a/conversations/conv_043807.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.82998688214145,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "248-130697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130697.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.246843373235456,
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-      "utterance_id": "1492-11251",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-11251.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1492-55449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-55449.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.20678173046696,
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-      "overlap": true,
-      "utterance_id": "5826-48845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-48845.flac |",
-      "real_speaker_id": "5826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.92870062251783,
-      "end_time": 26.430715910546922,
-      "duration": 3.502015288029091,
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-      "overlap": false,
-      "utterance_id": "1492-174461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-174461.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.75997601468547,
-      "end_time": 31.82998688214145,
-      "duration": 5.070010867455982,
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-      "duration_frames": 81120,
-      "overlap": false,
-      "utterance_id": "248-130652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130652.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
-      "duration": 19.061179138321997,
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/248/laugh/0035.wav",
-      "duration": 1.6294811101078586,
-      "start_time": 1.879897010440709,
-      "speaker_id": "248"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1492"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1492/cough/0017.wav",
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-      "speaker_id": "1492"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1492/laugh/0074.wav",
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-      "speaker_id": "1492"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5826/laugh/0036.wav",
-      "duration": 1.6,
-      "start_time": 17.711312900077253,
-      "speaker_id": "5826"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5826/cough/0035.wav",
-      "duration": 1.4003993721579822,
-      "start_time": 21.74162188511778,
-      "speaker_id": "5826"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043811.json b/conversations/conv_043811.json
deleted file mode 100644
index c3d40d07953a5c7824bf431c3148434a9f5066e9..0000000000000000000000000000000000000000
--- a/conversations/conv_043811.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2288-139962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2288-139962.flac |",
-      "real_speaker_id": "2288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8184930580381193,
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-      "utterance_id": "2920-156230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156230.flac |",
-      "real_speaker_id": "2920",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.081416738443382,
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-      "overlap": false,
-      "utterance_id": "2920-156224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156224.flac |",
-      "real_speaker_id": "2920",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.16903882360951,
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-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.288149082511254,
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-      "duration_frames": 52500,
-      "overlap": false,
-      "utterance_id": "2920-156230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156230.flac |",
-      "real_speaker_id": "2920",
-      "position_frames": 91403
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.913245469459905,
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-      "duration": 5.894910682309286,
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-      "duration_frames": 94318,
-      "overlap": false,
-      "utterance_id": "2288-139949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2288-139949.flac |",
-      "real_speaker_id": "2288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.28498744596562,
-      "end_time": 32.0,
-      "duration": 0.7150125540343808,
-      "start_frame": 500559,
-      "duration_frames": 11440,
-      "overlap": false,
-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 54680
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_5.wav",
-      "duration": 1.1655868867937302,
-      "start_time": 21.831340121766964
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2920/laugh/0026.wav",
-      "duration": 1.52,
-      "start_time": 12.746119986296943,
-      "speaker_id": "2920"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2920/laugh/0023.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2920/cough/0000.wav",
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-      "start_time": 19.775835546990745,
-      "speaker_id": "2920"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2288/laugh/0071.wav",
-      "duration": 1.8,
-      "start_time": 25.938241320158205,
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-    {
-      "event_class": "cough",
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-      "start_time": 30.845520688473226,
-      "speaker_id": "2288"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043816.json b/conversations/conv_043816.json
deleted file mode 100644
index 91ea7f535c73a031a3aa2f0f165d66718ce2b7d4..0000000000000000000000000000000000000000
--- a/conversations/conv_043816.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.240542104841502,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.655124964805501,
-      "duration": 5.655124964805501,
-      "start_frame": 0,
-      "duration_frames": 90481,
-      "overlap": false,
-      "utterance_id": "453-129306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-129306.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.749747161067513,
-      "end_time": 10.95186156864509,
-      "duration": 5.202114407577576,
-      "start_frame": 91995,
-      "duration_frames": 83233,
-      "overlap": true,
-      "utterance_id": "4591-14356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-14356.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.329107797980322,
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-      "duration": 4.256715373691673,
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-      "duration_frames": 68107,
-      "overlap": false,
-      "utterance_id": "453-129308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-129308.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.867439599898795,
-      "end_time": 22.84014753671153,
-      "duration": 4.972707936812735,
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-      "duration_frames": 79563,
-      "overlap": false,
-      "utterance_id": "7553-101278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.41810064013042,
-      "end_time": 27.771658924179764,
-      "duration": 4.353558284049346,
-      "start_frame": 374689,
-      "duration_frames": 69656,
-      "overlap": false,
-      "utterance_id": "453-129308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-129308.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 68107
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.256297969319036,
-      "end_time": 31.240542104841502,
-      "duration": 3.9842441355224665,
-      "start_frame": 436100,
-      "duration_frames": 63747,
-      "overlap": true,
-      "utterance_id": "4591-14356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-14356.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 83233
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
-      "start_time": 4.221809694025413
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7553/laugh/0012.wav",
-      "duration": 1.2717772733215265,
-      "start_time": 16.378023913225537,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/453/laugh/0034.wav",
-      "duration": 0.94,
-      "start_time": 22.3479847080033,
-      "speaker_id": "453"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4591/cough/0044.wav",
-      "duration": 0.8219282340625618,
-      "start_time": 26.248946112556826,
-      "speaker_id": "4591"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043820.json b/conversations/conv_043820.json
deleted file mode 100644
index cfc2185c71cdc6aa06f966c208a18221cb11abfb..0000000000000000000000000000000000000000
--- a/conversations/conv_043820.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_043836.json b/conversations/conv_043836.json
deleted file mode 100644
index e43889c313025974039d259817934a4a76ba5f62..0000000000000000000000000000000000000000
--- a/conversations/conv_043836.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274380.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_043841.json b/conversations/conv_043841.json
deleted file mode 100644
index 672d9583a13e6d227d35b7ec71f93cd73b5796f9..0000000000000000000000000000000000000000
--- a/conversations/conv_043841.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_043846.json b/conversations/conv_043846.json
deleted file mode 100644
index 091acb3762076e2d181136814624bfe7adefdf70..0000000000000000000000000000000000000000
--- a/conversations/conv_043846.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_043850.json b/conversations/conv_043850.json
deleted file mode 100644
index b4d996804113275c43b5b4bc81199517e5b6db69..0000000000000000000000000000000000000000
--- a/conversations/conv_043850.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.156248790694032,
-      "duration": 6.156248790694032,
-      "start_frame": 0,
-      "duration_frames": 98499,
-      "overlap": false,
-      "utterance_id": "2391-145015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
-      "real_speaker_id": "2391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.969896132844259,
-      "end_time": 10.242576264327473,
-      "duration": 3.2726801314832143,
-      "start_frame": 111518,
-      "duration_frames": 52362,
-      "overlap": false,
-      "utterance_id": "8028-233366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.057653089031113,
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-      "duration": 4.6912266409234125,
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-      "duration_frames": 75059,
-      "overlap": false,
-      "utterance_id": "2391-145015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
-      "real_speaker_id": "2391",
-      "position_frames": 98499
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.80879050742158,
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-      "start_frame": 252940,
-      "duration_frames": 97212,
-      "overlap": true,
-      "utterance_id": "8028-233366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 52362
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.006325677867487,
-      "end_time": 28.596712227540138,
-      "duration": 5.590386549672649,
-      "start_frame": 368101,
-      "duration_frames": 89446,
-      "overlap": true,
-      "utterance_id": "2391-145015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
-      "real_speaker_id": "2391",
-      "position_frames": 173558
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.163693248711546,
-      "end_time": 32.0,
-      "duration": 2.836306751288454,
-      "start_frame": 466619,
-      "duration_frames": 45380,
-      "overlap": false,
-      "utterance_id": "8180-274723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274723.flac |",
-      "real_speaker_id": "8180",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 16.75055792351089
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_12.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8028/laugh/0071.wav",
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-      "start_time": 19.810662457318685,
-      "speaker_id": "8028"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2391/laugh/0097.wav",
-      "duration": 0.8593525621847284,
-      "start_time": 24.69277109840038,
-      "speaker_id": "2391"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8180/laugh/0019.wav",
-      "duration": 1.28,
-      "start_time": 29.222483300384273,
-      "speaker_id": "8180"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043857.json b/conversations/conv_043857.json
deleted file mode 100644
index 5d4ad650e7a3a87b9ecef07980d6790cb6d3e9be..0000000000000000000000000000000000000000
--- a/conversations/conv_043857.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.81566258803584,
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-      "overlap": false,
-      "utterance_id": "31-121970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121970.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.365812521524707,
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-      "duration": 4.285552806383248,
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-      "duration_frames": 68568,
-      "overlap": false,
-      "utterance_id": "1235-135883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135883.flac |",
-      "real_speaker_id": "1235",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279593.flac |",
-      "real_speaker_id": "8164",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1235-135884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135884.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.225003442745557,
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-      "utterance_id": "8164-279592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279592.flac |",
-      "real_speaker_id": "8164",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.202439877693674,
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-      "duration": 4.820824886324681,
-      "start_frame": 419239,
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-      "overlap": false,
-      "utterance_id": "31-121972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121972.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.46254296060421,
-      "end_time": 32.0,
-      "duration": 0.5374570393957896,
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-      "overlap": false,
-      "utterance_id": "8164-279592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279592.flac |",
-      "real_speaker_id": "8164",
-      "position_frames": 61095
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.0,
-      "start_time": 25.005715688624896,
-      "speaker_id": "31"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043861.json b/conversations/conv_043861.json
deleted file mode 100644
index a76dc8fcf5830d5700d48e254daa4aed21d70c9e..0000000000000000000000000000000000000000
--- a/conversations/conv_043861.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.617029407165834,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7240-92202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92202.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129596.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92200.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7240-108066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-108066.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 5.333555042946441,
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-      "utterance_id": "671-131030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131030.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 72089
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/671/cough/0031.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043877.json b/conversations/conv_043877.json
deleted file mode 100644
index aa8a445cb7aa08a51f4fd7131b6834219aacdbbc..0000000000000000000000000000000000000000
--- a/conversations/conv_043877.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "position_frames": 0
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-    {
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-      "speaker_id": "2730"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043882.json b/conversations/conv_043882.json
deleted file mode 100644
index 87085909c96dd64ca8d9fd65df1c1f4a5b5f83f4..0000000000000000000000000000000000000000
--- a/conversations/conv_043882.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16817.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 66744
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.432117649783084,
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-      "utterance_id": "3796-16817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16817.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 59743
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 158821
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.10513368283617,
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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\ No newline at end of file
diff --git a/conversations/conv_043885.json b/conversations/conv_043885.json
deleted file mode 100644
index fe3f539ff6e6d063213d60879184c845b2a7d1c1..0000000000000000000000000000000000000000
--- a/conversations/conv_043885.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5765-231845.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
-      "position_frames": 92713
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "549-126410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5765-231845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5765-231845.flac |",
-      "real_speaker_id": "5765",
-      "position_frames": 62775
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_043894.json b/conversations/conv_043894.json
deleted file mode 100644
index 583623e2f7f0d1aee0879cd9e45aca4a4601d150..0000000000000000000000000000000000000000
--- a/conversations/conv_043894.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-17347.flac |",
-      "real_speaker_id": "4710",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-17347.flac |",
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-      "real_speaker_id": "4262",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_043895.json b/conversations/conv_043895.json
deleted file mode 100644
index ff54061a8674a567f54ca592cda0519f67e5e627..0000000000000000000000000000000000000000
--- a/conversations/conv_043895.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.44287100366685,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7423-89169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89169.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6173-76445.flac |",
-      "real_speaker_id": "6173",
-      "position_frames": 92222
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
-      "duration": 3.3916629079901255,
-      "start_time": 9.073692738784032
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7423/laugh/0099.wav",
-      "duration": 0.6285029814205354,
-      "start_time": 0,
-      "speaker_id": "7423"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043898.json b/conversations/conv_043898.json
deleted file mode 100644
index d67b55d3eb5a54f186907d7804e9d8484c4c88f1..0000000000000000000000000000000000000000
--- a/conversations/conv_043898.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.82032598083014,
-      "duration": 5.82032598083014,
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-      "duration_frames": 93125,
-      "overlap": false,
-      "utterance_id": "2182-150130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.302689109990574,
-      "end_time": 10.28451378639043,
-      "duration": 3.9818246763998557,
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-      "overlap": false,
-      "utterance_id": "3318-164981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164981.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.461506247705461,
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-      "start_frame": 167384,
-      "duration_frames": 84330,
-      "overlap": false,
-      "utterance_id": "1379-130529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1379-130529.flac |",
-      "real_speaker_id": "1379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.244913457056285,
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-      "duration": 6.360781508251663,
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-      "utterance_id": "3318-164984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164984.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.370657450067043,
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-      "utterance_id": "1379-130517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1379-130517.flac |",
-      "real_speaker_id": "1379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.358286808004017,
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-      "duration": 2.641713191995983,
-      "start_frame": 469732,
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-      "utterance_id": "2182-150130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 93125
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_1.wav",
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-      "event_class": "Dog",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.5962177593334319,
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-      "speaker_id": "1379"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043903.json b/conversations/conv_043903.json
deleted file mode 100644
index 87698eb12b22b0221f313d61344b4307fbbc8ac7..0000000000000000000000000000000000000000
--- a/conversations/conv_043903.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-133067.flac |",
-      "real_speaker_id": "2152",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
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-      "start_time": 11.32368833175901,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-133067.flac |",
-      "real_speaker_id": "2152",
-      "position_frames": 83829
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "2582-155973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155973.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.69025297214116,
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-      "utterance_id": "2152-133013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-133013.flac |",
-      "real_speaker_id": "2152",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2582-155973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155973.flac |",
-      "real_speaker_id": "2582",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2582/laugh/0032.wav",
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-      "start_time": 31.244291809293845,
-      "speaker_id": "2582"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043904.json b/conversations/conv_043904.json
deleted file mode 100644
index 08d37743d19352fe37e76e78d80c51cac7dc7fb9..0000000000000000000000000000000000000000
--- a/conversations/conv_043904.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "3060-163542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163542.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.121220595661407,
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-      "overlap": false,
-      "utterance_id": "1636-130535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130535.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.823148362653942,
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-      "overlap": false,
-      "utterance_id": "3060-163540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.632070182266798,
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-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.667200782415478,
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-      "utterance_id": "3060-163499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163499.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.194181798922386,
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-      "duration": 2.8058182010776136,
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-      "duration_frames": 44893,
-      "overlap": false,
-      "utterance_id": "1636-130501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_043908.json b/conversations/conv_043908.json
deleted file mode 100644
index 37ac8af0974485b412e3390eb5a25d47dc263a18..0000000000000000000000000000000000000000
--- a/conversations/conv_043908.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "8225-274375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274375.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.352349483588506,
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-      "utterance_id": "2137-131742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2137-131742.flac |",
-      "real_speaker_id": "2137",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.670870439838678,
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-      "utterance_id": "8225-274375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274375.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 77961
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "2137-131748",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8225-274376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274376.flac |",
-      "real_speaker_id": "8225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.5299914140831348,
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-      "duration_frames": 56479,
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-      "utterance_id": "2137-131748",
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-      "real_speaker_id": "2137",
-      "position_frames": 52650
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_043912.json b/conversations/conv_043912.json
deleted file mode 100644
index 5f6100cc05d796dc5987a6304d55d1f8bee6f787..0000000000000000000000000000000000000000
--- a/conversations/conv_043912.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.0516711136125405,
-      "duration": 6.0516711136125405,
-      "start_frame": 0,
-      "duration_frames": 96826,
-      "overlap": false,
-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.43362193774371,
-      "end_time": 10.47135778588508,
-      "duration": 4.037735848141371,
-      "start_frame": 102937,
-      "duration_frames": 64603,
-      "overlap": false,
-      "utterance_id": "8441-281327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.796136326933572,
-      "end_time": 17.573667409585447,
-      "duration": 6.777531082651876,
-      "start_frame": 172738,
-      "duration_frames": 108440,
-      "overlap": false,
-      "utterance_id": "8382-285236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-285236.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.18641004197926,
-      "end_time": 22.384554233497827,
-      "duration": 5.198144191518565,
-      "start_frame": 274982,
-      "duration_frames": 83170,
-      "overlap": true,
-      "utterance_id": "8441-281327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 64603
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.424574836149123,
-      "end_time": 27.646185480085776,
-      "duration": 4.221610643936652,
-      "start_frame": 374793,
-      "duration_frames": 67545,
-      "overlap": false,
-      "utterance_id": "8382-294774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.00505770728089,
-      "end_time": 32.0,
-      "duration": 3.9949422927191094,
-      "start_frame": 448080,
-      "duration_frames": 63919,
-      "overlap": false,
-      "utterance_id": "8382-294774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
-      "real_speaker_id": "8382",
-      "position_frames": 67545
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_3.wav",
-      "duration": 3.962520583856795,
-      "start_time": 7.266202871489453
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
-      "duration": 2.646837297236034,
-      "start_time": 17.745772258561278
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8441/laugh/0029.wav",
-      "duration": 1.28,
-      "start_time": 10.567535090648736,
-      "speaker_id": "8441"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8382/laugh/0003.wav",
-      "duration": 1.36,
-      "start_time": 9.277909930866244,
-      "speaker_id": "8382"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8441/laugh/0008.wav",
-      "duration": 0.907250352166266,
-      "start_time": 21.250675613424473,
-      "speaker_id": "8441"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8441/cough/0077.wav",
-      "duration": 1.06,
-      "start_time": 22.517748359616576,
-      "speaker_id": "8441"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043915.json b/conversations/conv_043915.json
deleted file mode 100644
index 9b55ff05e574f0cc0db5227a573160b59b8eef4c..0000000000000000000000000000000000000000
--- a/conversations/conv_043915.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.48692805626956,
-      "duration": 4.48692805626956,
-      "start_frame": 0,
-      "duration_frames": 71790,
-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.304773358540537,
-      "end_time": 8.391094861022522,
-      "duration": 3.0863215024819843,
-      "start_frame": 84876,
-      "duration_frames": 49381,
-      "overlap": false,
-      "utterance_id": "5022-29405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29405.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.007188910441252,
-      "end_time": 13.571223832941012,
-      "duration": 5.56403492249976,
-      "start_frame": 128115,
-      "duration_frames": 89024,
-      "overlap": true,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 71790
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.868189521336165,
-      "end_time": 20.926579289184076,
-      "duration": 6.05838976784791,
-      "start_frame": 237891,
-      "duration_frames": 96934,
-      "overlap": false,
-      "utterance_id": "5022-29411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29411.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.46961079485259,
-      "end_time": 25.65586777116735,
-      "duration": 4.186256976314764,
-      "start_frame": 343513,
-      "duration_frames": 66980,
-      "overlap": true,
-      "utterance_id": "5022-29411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29411.flac |",
-      "real_speaker_id": "5022",
-      "position_frames": 96934
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.250086541376024,
-      "end_time": 32.0,
-      "duration": 4.7499134586239755,
-      "start_frame": 436001,
-      "duration_frames": 75998,
-      "overlap": false,
-      "utterance_id": "614-6500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_16.wav",
-      "duration": 0.5380045351473923,
-      "start_time": 1.9300015800153898
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5459/laugh/0063.wav",
-      "duration": 0.9877359546487958,
-      "start_time": 4.516801839830148,
-      "speaker_id": "5459"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043924.json b/conversations/conv_043924.json
deleted file mode 100644
index 68f67efc9bcea18b24134896fbf61647d620b7e6..0000000000000000000000000000000000000000
--- a/conversations/conv_043924.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.09297060965609,
-      "duration": 6.09297060965609,
-      "start_frame": 0,
-      "duration_frames": 97487,
-      "overlap": false,
-      "utterance_id": "5141-26943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26943.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.153693413368261,
-      "end_time": 9.587131925867338,
-      "duration": 3.4334385124990767,
-      "start_frame": 98459,
-      "duration_frames": 54935,
-      "overlap": true,
-      "utterance_id": "5141-26943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26943.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 97487
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.085013936416457,
-      "end_time": 17.546335321704557,
-      "duration": 6.461321385288099,
-      "start_frame": 177360,
-      "duration_frames": 103381,
-      "overlap": false,
-      "utterance_id": "1645-141819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1645-141819.flac |",
-      "real_speaker_id": "1645",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.883311667040363,
-      "end_time": 22.054780358028978,
-      "duration": 3.1714686909886147,
-      "start_frame": 302132,
-      "duration_frames": 50743,
-      "overlap": false,
-      "utterance_id": "5933-73033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-73033.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.283502899238485,
-      "end_time": 27.928171702625775,
-      "duration": 5.644668803387289,
-      "start_frame": 356536,
-      "duration_frames": 90314,
-      "overlap": false,
-      "utterance_id": "5141-26943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26943.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 152422
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.39002766196728,
-      "end_time": 32.0,
-      "duration": 3.609972338032719,
-      "start_frame": 454240,
-      "duration_frames": 57759,
-      "overlap": false,
-      "utterance_id": "5933-73033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-73033.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 50743
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_8.wav",
-      "duration": 0.32002267573696147,
-      "start_time": 24.86832594182329
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_043928.json b/conversations/conv_043928.json
deleted file mode 100644
index 679ec2a7308578d30ea54443d85ffaaec40c3bdc..0000000000000000000000000000000000000000
--- a/conversations/conv_043928.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.162514758900312,
-      "duration": 4.162514758900312,
-      "start_frame": 0,
-      "duration_frames": 66600,
-      "overlap": false,
-      "utterance_id": "1938-180290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1938-180290.flac |",
-      "real_speaker_id": "1938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.828605434672836,
-      "end_time": 9.535866399237051,
-      "duration": 4.707260964564214,
-      "start_frame": 77257,
-      "duration_frames": 75316,
-      "overlap": false,
-      "utterance_id": "404-132014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132014.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.151446203963872,
-      "end_time": 14.103604246906691,
-      "duration": 3.9521580429428207,
-      "start_frame": 162423,
-      "duration_frames": 63234,
-      "overlap": false,
-      "utterance_id": "3409-173567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3409-173567.flac |",
-      "real_speaker_id": "3409",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.391902071805333,
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-      "duration": 3.527892270512232,
-      "start_frame": 230270,
-      "duration_frames": 56446,
-      "overlap": false,
-      "utterance_id": "404-132014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132014.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 75316
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "duration_frames": 105125,
-      "overlap": false,
-      "utterance_id": "3409-167623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3409-167623.flac |",
-      "real_speaker_id": "3409",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.37800795466252,
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-      "duration": 5.621992045337478,
-      "start_frame": 422048,
-      "duration_frames": 89951,
-      "overlap": false,
-      "utterance_id": "3409-167622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3409-167622.flac |",
-      "real_speaker_id": "3409",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_6.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.3746017043593062,
-      "start_time": 13.794855673363426
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1938/laugh/0011.wav",
-      "duration": 1.3533024715471478,
-      "start_time": 0.31471862265722217,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1938/cough/0061.wav",
-      "duration": 0.34487172725270715,
-      "start_time": 0,
-      "speaker_id": "1938"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3409/cough/0029.wav",
-      "duration": 0.5372666107646189,
-      "start_time": 14.15669397090371,
-      "speaker_id": "3409"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043932.json b/conversations/conv_043932.json
deleted file mode 100644
index 682533b6810708e424db4a08bee4d40fdd6b06af..0000000000000000000000000000000000000000
--- a/conversations/conv_043932.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.537418720093224,
-      "duration": 5.537418720093224,
-      "start_frame": 0,
-      "duration_frames": 88598,
-      "overlap": false,
-      "utterance_id": "3357-28380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3357-28380.flac |",
-      "real_speaker_id": "3357",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_043942.json b/conversations/conv_043942.json
deleted file mode 100644
index b99617cf530b6b730598b111341851f70bef8f4a..0000000000000000000000000000000000000000
--- a/conversations/conv_043942.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_043945.json b/conversations/conv_043945.json
deleted file mode 100644
index 4cdbe8512619edbca15c248f3c8492a443a246ad..0000000000000000000000000000000000000000
--- a/conversations/conv_043945.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_043949.json b/conversations/conv_043949.json
deleted file mode 100644
index b7387a9e1aecb0a94ba728e4392e4c7feb6d0d81..0000000000000000000000000000000000000000
--- a/conversations/conv_043949.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_043953.json b/conversations/conv_043953.json
deleted file mode 100644
index d7008c9a1599db6e193f291ae3d4b9cd42a8d719..0000000000000000000000000000000000000000
--- a/conversations/conv_043953.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_043954.json b/conversations/conv_043954.json
deleted file mode 100644
index 5b33e58333ece0ad04fe28640f8f3d0f0df143e8..0000000000000000000000000000000000000000
--- a/conversations/conv_043954.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128345.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
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-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_043965.json b/conversations/conv_043965.json
deleted file mode 100644
index 3531654393557aecc33190bcca17e6f5e96abd52..0000000000000000000000000000000000000000
--- a/conversations/conv_043965.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-28452.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_043968.json b/conversations/conv_043968.json
deleted file mode 100644
index e4053a19844f14af47994023fbfdee77a32df208..0000000000000000000000000000000000000000
--- a/conversations/conv_043968.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7644/laugh/0062.wav",
-      "duration": 0.6298995858473344,
-      "start_time": 28.659207021453298,
-      "speaker_id": "7644"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043969.json b/conversations/conv_043969.json
deleted file mode 100644
index a8f819583723d8f73d36a7ed95f3c6cfe1dbf2b7..0000000000000000000000000000000000000000
--- a/conversations/conv_043969.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.563294523461067,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.878326361307232,
-      "duration": 4.878326361307232,
-      "start_frame": 0,
-      "duration_frames": 78053,
-      "overlap": false,
-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.6373504175428995,
-      "end_time": 11.01239066587265,
-      "duration": 5.37504024832975,
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-      "duration_frames": 86000,
-      "overlap": false,
-      "utterance_id": "7376-96150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.146457899205629,
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-      "duration": 4.677409827663509,
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-      "duration_frames": 74838,
-      "overlap": false,
-      "utterance_id": "4010-10801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10801.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.557854816987152,
-      "end_time": 22.104010142360806,
-      "duration": 5.546155325373652,
-      "start_frame": 264925,
-      "duration_frames": 88738,
-      "overlap": false,
-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 78053
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.36173014501535,
-      "end_time": 28.247592657040396,
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-      "start_frame": 341787,
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-      "overlap": true,
-      "utterance_id": "7376-96150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 86000
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.21737338637087,
-      "end_time": 31.563294523461067,
-      "duration": 2.3459211370901976,
-      "start_frame": 467477,
-      "duration_frames": 37534,
-      "overlap": true,
-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 166791
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/laugh/0019.wav",
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-      "event_class": "cough",
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-      "duration": 1.0393033307683293,
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-      "speaker_id": "7376"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/laugh/0019.wav",
-      "duration": 0.577936468937158,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/cough/0042.wav",
-      "duration": 0.92,
-      "start_time": 31.08,
-      "speaker_id": "4955"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043973.json b/conversations/conv_043973.json
deleted file mode 100644
index ce0c81d578c13b631eaa77fa08f2e4f794706d52..0000000000000000000000000000000000000000
--- a/conversations/conv_043973.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.366444911290554,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 3.98067853969415,
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-      "overlap": false,
-      "utterance_id": "3215-5764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5764.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.333184423440181,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5758.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.8672201588487,
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.780485684228246,
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-      "duration": 3.833853481284043,
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-      "overlap": false,
-      "utterance_id": "3215-5758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5758.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 61318
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.839279277126607,
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-      "duration_frames": 100015,
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-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 82773
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.49830000592886,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 182788
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_043986.json b/conversations/conv_043986.json
deleted file mode 100644
index 2718aa4794643c271ea9c5a876696a7ca6e795ff..0000000000000000000000000000000000000000
--- a/conversations/conv_043986.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8590-258292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258292.flac |",
-      "real_speaker_id": "8590",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131276.flac |",
-      "real_speaker_id": "225",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "625-132112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.00187813111149,
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-      "utterance_id": "8590-258290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8590-258290.flac |",
-      "real_speaker_id": "8590",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "225-131256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131256.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 25.15797124019145,
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-}
\ No newline at end of file
diff --git a/conversations/conv_043990.json b/conversations/conv_043990.json
deleted file mode 100644
index 393b13277dc652aeb1a4156446140734dbc0827a..0000000000000000000000000000000000000000
--- a/conversations/conv_043990.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "5379-15784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-15784.flac |",
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-      "position_frames": 0
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-    {
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5379/cough/0005.wav",
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-      "start_time": 0,
-      "speaker_id": "5379"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5157/cough/0077.wav",
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-      "speaker_id": "5157"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5379/laugh/0030.wav",
-      "duration": 0.8770770811690161,
-      "start_time": 9.417997084205805,
-      "speaker_id": "5379"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5157/laugh/0005.wav",
-      "duration": 0.9882294638169771,
-      "start_time": 21.277234946919155,
-      "speaker_id": "5157"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5379/laugh/0045.wav",
-      "duration": 1.8,
-      "start_time": 27.996306351352253,
-      "speaker_id": "5379"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044003.json b/conversations/conv_044003.json
deleted file mode 100644
index cc3d7e7a455e34c447e763a6e16638e4ca39283c..0000000000000000000000000000000000000000
--- a/conversations/conv_044003.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.59197669377634,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.270061324854536,
-      "duration": 4.270061324854536,
-      "start_frame": 0,
-      "duration_frames": 68320,
-      "overlap": false,
-      "utterance_id": "4039-184266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184266.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.091545459683283,
-      "end_time": 11.924801615850878,
-      "duration": 6.833256156167596,
-      "start_frame": 81464,
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-      "overlap": false,
-      "utterance_id": "2010-147045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2010-147045.flac |",
-      "real_speaker_id": "2010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.136087866538148,
-      "end_time": 16.845773447267767,
-      "duration": 4.709685580729621,
-      "start_frame": 194177,
-      "duration_frames": 75354,
-      "overlap": false,
-      "utterance_id": "4967-26553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-26553.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.5201018089394,
-      "end_time": 24.231611322602962,
-      "duration": 6.711509513663561,
-      "start_frame": 280321,
-      "duration_frames": 107384,
-      "overlap": false,
-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.846810337843902,
-      "end_time": 31.59197669377634,
-      "duration": 6.745166355932438,
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-      "overlap": false,
-      "utterance_id": "4967-3586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-3586.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-      "start_time": 5.659467860404562
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
-      "duration": 2.030827101027671,
-      "start_time": 15.22205234083594
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4967/laugh/0099.wav",
-      "duration": 1.58,
-      "start_time": 10.35356100931868,
-      "speaker_id": "4967"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044004.json b/conversations/conv_044004.json
deleted file mode 100644
index 6a25c02709767f5c9b5f14a26957750f89581844..0000000000000000000000000000000000000000
--- a/conversations/conv_044004.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.897651070627289,
-      "duration": 6.897651070627289,
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-      "overlap": false,
-      "utterance_id": "3417-6522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3417-6522.flac |",
-      "real_speaker_id": "3417",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.677669150776484,
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-      "utterance_id": "2587-159393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-159393.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.722267433374508,
-      "end_time": 20.597834515196602,
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-      "overlap": false,
-      "utterance_id": "2587-163454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-163454.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.975675688595103,
-      "end_time": 26.133287482526928,
-      "duration": 5.157611793931825,
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-      "duration_frames": 82521,
-      "overlap": true,
-      "utterance_id": "5009-29143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.94459547089334,
-      "end_time": 32.0,
-      "duration": 4.05540452910666,
-      "start_frame": 447113,
-      "duration_frames": 64886,
-      "overlap": false,
-      "utterance_id": "3417-6522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3417-6522.flac |",
-      "real_speaker_id": "3417",
-      "position_frames": 110362
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
-      "duration": 3.0605250376114768,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5009/laugh/0033.wav",
-      "duration": 0.92,
-      "start_time": 23.291537886786294,
-      "speaker_id": "5009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044012.json b/conversations/conv_044012.json
deleted file mode 100644
index fb0f76a77351892c30f9966003e3ba8808927781..0000000000000000000000000000000000000000
--- a/conversations/conv_044012.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5139-30105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30105.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.796086360505788,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7796-269934.flac |",
-      "real_speaker_id": "7796",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7796-269934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7796-269934.flac |",
-      "real_speaker_id": "7796",
-      "position_frames": 85104
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "984-137141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137141.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.86756998483208,
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-      "duration": 3.4533388781505403,
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-      "utterance_id": "7796-269904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7796-269904.flac |",
-      "real_speaker_id": "7796",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-30105.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 77444
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.855761757917477,
-      "end_time": 32.0,
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-      "utterance_id": "7796-269970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7796-269970.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "speaker_id": "5139"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044014.json b/conversations/conv_044014.json
deleted file mode 100644
index c553c5a2abf0f6e8ba80275d9413dab10c54008a..0000000000000000000000000000000000000000
--- a/conversations/conv_044014.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "1187-136241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136241.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.638708392486102,
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-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "62-121084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
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-    {
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-      "real_speaker_id": "7046",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "speaker_id": "1187"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044015.json b/conversations/conv_044015.json
deleted file mode 100644
index 501c9473a75f202d26bb29592b07ec0a2ee16f97..0000000000000000000000000000000000000000
--- a/conversations/conv_044015.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.836841454424251,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4090-183984.flac |",
-      "real_speaker_id": "4090",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.668800213939353,
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-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.508677656208825,
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-      "utterance_id": "4090-183984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4090-183984.flac |",
-      "real_speaker_id": "4090",
-      "position_frames": 69520
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.3753299784804,
-      "end_time": 25.965897796498947,
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-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 69558
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.123674380644392,
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-      "utterance_id": "4090-183984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4090-183984.flac |",
-      "real_speaker_id": "4090",
-      "position_frames": 171421
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4236/laugh/0025.wav",
-      "duration": 1.4,
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-    {
-      "event_class": "cough",
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-      "duration": 0.78,
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-      "speaker_id": "4236"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044019.json b/conversations/conv_044019.json
deleted file mode 100644
index 23fab91ff400be8d1c61feb0a0932b189da7e9ae..0000000000000000000000000000000000000000
--- a/conversations/conv_044019.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32904.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32856.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.972892557420323,
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-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.0228330265358,
-      "end_time": 28.91956320836464,
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-      "utterance_id": "6014-32886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32886.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4699-12472",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
-      "real_speaker_id": "4699",
-      "position_frames": 75561
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044023.json b/conversations/conv_044023.json
deleted file mode 100644
index 3e0d781cbc76536a9b80abe63a8c9678bb60d396..0000000000000000000000000000000000000000
--- a/conversations/conv_044023.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "690-134308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-134308.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6121-8686.flac |",
-      "real_speaker_id": "6121",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.414114768344223,
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-      "segment_id": "seg0005",
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-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_044035.json b/conversations/conv_044035.json
deleted file mode 100644
index 03b729e82f442bf7fb3cdc822530ce0fb6fd2a83..0000000000000000000000000000000000000000
--- a/conversations/conv_044035.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "7286-92930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7286-92930.flac |",
-      "real_speaker_id": "7286",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0002",
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-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/318/laugh/0060.wav",
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-      "start_time": 11.259447500469452,
-      "speaker_id": "318"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_044038.json b/conversations/conv_044038.json
deleted file mode 100644
index 6fc4efd699c54b4218818987cbfbc6461e11e031..0000000000000000000000000000000000000000
--- a/conversations/conv_044038.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "218-131205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.747017149916373,
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-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.379493721522508,
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-      "utterance_id": "218-131205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 84750
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.98530785964589,
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-      "duration": 4.185432172662311,
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-      "utterance_id": "3906-191426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-191426.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.856573082109023,
-      "end_time": 30.68913989047717,
-      "duration": 6.832566808368147,
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-      "duration_frames": 109321,
-      "overlap": false,
-      "utterance_id": "218-131206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.016521278918187,
-      "end_time": 32.0,
-      "duration": 0.9834787210818128,
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-      "utterance_id": "6695-252325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252325.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 104301
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/218/cough/0053.wav",
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-      "speaker_id": "3906"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044039.json b/conversations/conv_044039.json
deleted file mode 100644
index 21d427f1046007ca3e147d4de185c48cbb67c367..0000000000000000000000000000000000000000
--- a/conversations/conv_044039.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2198-133546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-133546.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 5.006962952363564,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96157.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-151049.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-99249.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.998403392412115,
-      "end_time": 27.880912894286702,
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-      "start_frame": 383974,
-      "duration_frames": 62120,
-      "overlap": false,
-      "utterance_id": "2198-151049",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-151049.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 96345
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.14749021869003,
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-      "duration": 3.852509781309969,
-      "start_frame": 450359,
-      "duration_frames": 61640,
-      "overlap": false,
-      "utterance_id": "2198-151049",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-151049.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 158465
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.48,
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-      "speaker_id": "2198"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044042.json b/conversations/conv_044042.json
deleted file mode 100644
index 4d6016b412ec0cabdee72adf607ccb6d0a48952a..0000000000000000000000000000000000000000
--- a/conversations/conv_044042.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1474-172821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1474-172821.flac |",
-      "real_speaker_id": "1474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48831.flac |",
-      "real_speaker_id": "5618",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5618",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-225.flac |",
-      "real_speaker_id": "37",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48831.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 57597
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 75993
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-    {
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-      "speaker_id": "1474"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044045.json b/conversations/conv_044045.json
deleted file mode 100644
index ebf3890ba4e4539edf776f18166350a59a5959f2..0000000000000000000000000000000000000000
--- a/conversations/conv_044045.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.04802159427746,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
-      "segment_id": "seg0001",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_044053.json b/conversations/conv_044053.json
deleted file mode 100644
index 2478ad1f55fb63ec023ecae4e88ebf6578e8aec2..0000000000000000000000000000000000000000
--- a/conversations/conv_044053.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54193.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54188.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 87214
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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\ No newline at end of file
diff --git a/conversations/conv_044054.json b/conversations/conv_044054.json
deleted file mode 100644
index 0d7625b02f51b3c4a3874739284b3e970c44605b..0000000000000000000000000000000000000000
--- a/conversations/conv_044054.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_044058.json b/conversations/conv_044058.json
deleted file mode 100644
index 6daf3cc0e83bc1b0174140987f82ff001d0165c9..0000000000000000000000000000000000000000
--- a/conversations/conv_044058.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_044062.json b/conversations/conv_044062.json
deleted file mode 100644
index dcf53ea3d82d017105e9febaeb1a0d640ff8ecd0..0000000000000000000000000000000000000000
--- a/conversations/conv_044062.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64291.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "4289-21393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-21393.flac |",
-      "real_speaker_id": "4289",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.027334121641417,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64290.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_8.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/164574.wav",
-      "duration": 0.09782312925170068,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4856/laugh/0050.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "4856"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4856/cough/0063.wav",
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-      "start_time": 0,
-      "speaker_id": "4856"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_044074.json b/conversations/conv_044074.json
deleted file mode 100644
index eed857e0dc0e0addb6270bd7fce5c467f60791b4..0000000000000000000000000000000000000000
--- a/conversations/conv_044074.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.047633552171557,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4363-14936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-14936.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.884716153557531,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-11049.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.277634597350122,
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-      "utterance_id": "7226-86964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86964.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.380909237926506,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-14936.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 80762
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7226-86965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7226-86965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 83694
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.18,
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044078.json b/conversations/conv_044078.json
deleted file mode 100644
index 8a9fbfc9415df6c250611d58a36815fd25193b04..0000000000000000000000000000000000000000
--- a/conversations/conv_044078.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.80922459641341,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1545-160887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-160887.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.678383140569613,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
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-      "utterance_id": "4433-16802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
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-      "position_frames": 100126
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_044080.json b/conversations/conv_044080.json
deleted file mode 100644
index da83e769d763ff03ab670fd8e96d973e1c5c175e..0000000000000000000000000000000000000000
--- a/conversations/conv_044080.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129064.flac |",
-      "real_speaker_id": "380",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.201077903110132,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
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-      "position_frames": 94956
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
-      "real_speaker_id": "1168",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_044081.json b/conversations/conv_044081.json
deleted file mode 100644
index 28be0122010bb03e98dd6659c862fd4ddbae27ed..0000000000000000000000000000000000000000
--- a/conversations/conv_044081.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7932-110056.flac |",
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-    {
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7932/laugh/0061.wav",
-      "duration": 1.4210272426392796,
-      "start_time": 15.659810812142915,
-      "speaker_id": "7932"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044097.json b/conversations/conv_044097.json
deleted file mode 100644
index 0522c342cc4379c2f6ccad1f2be70f1bb186faa7..0000000000000000000000000000000000000000
--- a/conversations/conv_044097.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.0037298481004644,
-      "duration": 3.0037298481004644,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2050-164332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.4596209636303423,
-      "end_time": 7.971570121279141,
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-      "utterance_id": "5339-14133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14133.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.226910072817686,
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-      "overlap": false,
-      "utterance_id": "5339-14134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.095651537928973,
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-      "overlap": true,
-      "utterance_id": "8066-290047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-290047.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.15861324664757,
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-      "overlap": false,
-      "utterance_id": "2050-157659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.684188936406247,
-      "end_time": 28.747477780974478,
-      "duration": 5.06328884456823,
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-      "duration_frames": 81012,
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-      "utterance_id": "5339-14134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
-      "position_frames": 69559
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.540515997357343,
-      "end_time": 32.0,
-      "duration": 1.4594840026426574,
-      "start_frame": 488648,
-      "duration_frames": 23351,
-      "overlap": false,
-      "utterance_id": "2050-164335",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164335.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 24.558175928996278,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2050/cough/0014.wav",
-      "duration": 0.6702418606380371,
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-      "speaker_id": "2050"
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\ No newline at end of file
diff --git a/conversations/conv_044100.json b/conversations/conv_044100.json
deleted file mode 100644
index f942b200d2c291925c6114bc25f58701d2482c3b..0000000000000000000000000000000000000000
--- a/conversations/conv_044100.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.19497653522278,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6882-86794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-86794.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.9652784675746275,
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-      "utterance_id": "7095-88489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88489.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "start_frame": 198597,
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-      "overlap": true,
-      "utterance_id": "6882-79969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6882-79969.flac |",
-      "real_speaker_id": "6882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.86325321020664,
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-      "overlap": false,
-      "utterance_id": "7095-88483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88483.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.318660912374526,
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-      "utterance_id": "7095-88483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7095-88483.flac |",
-      "real_speaker_id": "7095",
-      "position_frames": 82731
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7095/laugh/0025.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7095/laugh/0029.wav",
-      "duration": 1.24,
-      "start_time": 22.879296909397492,
-      "speaker_id": "7095"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044107.json b/conversations/conv_044107.json
deleted file mode 100644
index 9fb30c996e3e60f9daea900f93c9f8f72ee4c735..0000000000000000000000000000000000000000
--- a/conversations/conv_044107.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.459607147572318,
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-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-124595.flac |",
-      "real_speaker_id": "2285",
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-      "utterance_id": "6324-64062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 71353
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6324-64062",
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-      "real_speaker_id": "6324",
-      "position_frames": 84261
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.804148006416284,
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-      "duration": 4.195851993583716,
-      "start_frame": 444866,
-      "duration_frames": 67133,
-      "overlap": false,
-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 127590
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044111.json b/conversations/conv_044111.json
deleted file mode 100644
index 0ab12f1c7bd11cc12307e9b66dd81ee9549145cc..0000000000000000000000000000000000000000
--- a/conversations/conv_044111.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.987729322631841,
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-      "utterance_id": "7794-295948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295948.flac |",
-      "real_speaker_id": "7794",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.871164620535703,
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-      "utterance_id": "3723-171115",
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-      "real_speaker_id": "3723",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6368-230929",
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-      "real_speaker_id": "6368",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171631.flac |",
-      "real_speaker_id": "3723",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "event_class": "Dog",
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-      "duration": 1.24,
-      "start_time": 11.190370377342859,
-      "speaker_id": "6368"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6368/cough/0080.wav",
-      "duration": 0.3219254892478469,
-      "start_time": 12.170252934049861,
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-      "event_class": "laugh",
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-      "duration": 1.06,
-      "start_time": 24.652830617426794,
-      "speaker_id": "6368"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044116.json b/conversations/conv_044116.json
deleted file mode 100644
index ee70ebb9170df0e24551deab8f8ed160fa950c11..0000000000000000000000000000000000000000
--- a/conversations/conv_044116.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.989640346703297,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "6330",
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-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.513937721625894,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6330-62851.flac |",
-      "real_speaker_id": "6330",
-      "position_frames": 65023
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.628164977648968,
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 89981
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.688466992773087,
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 158376
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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\ No newline at end of file
diff --git a/conversations/conv_044127.json b/conversations/conv_044127.json
deleted file mode 100644
index 5ac97ba3cce3581b6b4fa2eb78fa195ed3b9cc64..0000000000000000000000000000000000000000
--- a/conversations/conv_044127.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.378083476429943,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-157945.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
-      "real_speaker_id": "6981",
-      "position_frames": 146364
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "705-157959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-157959.flac |",
-      "real_speaker_id": "705",
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-      "utterance_id": "1566-133291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1566-133291.flac |",
-      "real_speaker_id": "1566",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_044131.json b/conversations/conv_044131.json
deleted file mode 100644
index 5c9b059f236671c8747007d60de68ac6f543097d..0000000000000000000000000000000000000000
--- a/conversations/conv_044131.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.654007155929172,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "6232-36628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178028.flac |",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "203",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "203-132069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132069.flac |",
-      "real_speaker_id": "203",
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-      "speaker_id": 1,
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_044141.json b/conversations/conv_044141.json
deleted file mode 100644
index 65f1ee5428da0ba600f9249ebfbc221fd2e75469..0000000000000000000000000000000000000000
--- a/conversations/conv_044141.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4216-10192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
-      "real_speaker_id": "4216",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "5778",
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-      "segment_id": "seg0002",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_044146.json b/conversations/conv_044146.json
deleted file mode 100644
index ef4be6e6c8f63a906e854679c48663193ee71a5e..0000000000000000000000000000000000000000
--- a/conversations/conv_044146.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "2004-147981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147981.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147967.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6533-399.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147967.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 65541
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.170222604950844,
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-      "utterance_id": "2004-147173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147173.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_044150.json b/conversations/conv_044150.json
deleted file mode 100644
index be1e34cd2102827a4635ad2bf78c6e3ac49b2cf6..0000000000000000000000000000000000000000
--- a/conversations/conv_044150.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-4873.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 0
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-      "real_speaker_id": "1553",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "5487-4873",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5487-4873.flac |",
-      "real_speaker_id": "5487",
-      "position_frames": 166032
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-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.56,
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-      "speaker_id": "5487"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044151.json b/conversations/conv_044151.json
deleted file mode 100644
index 448b0af7f6091df11da5e10a9faa5e4bda78f365..0000000000000000000000000000000000000000
--- a/conversations/conv_044151.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7085-2327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-2327.flac |",
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-      "position_frames": 0
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 83058
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044157.json b/conversations/conv_044157.json
deleted file mode 100644
index 2cc6477e0cf94ffd8063ddb309ab72e2440d54af..0000000000000000000000000000000000000000
--- a/conversations/conv_044157.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1188.flac |",
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-      "speaker_id": 1,
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-      "utterance_id": "8534-216564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216564.flac |",
-      "real_speaker_id": "8534",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216564.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 86807
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8534/cough/0049.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044166.json b/conversations/conv_044166.json
deleted file mode 100644
index aeda6aa5fc262c26c1c8e669c6e393ef1a60fb7b..0000000000000000000000000000000000000000
--- a/conversations/conv_044166.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.97350373234309,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-127525.flac |",
-      "real_speaker_id": "480",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.334255148313957,
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-      "utterance_id": "480-126336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126336.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.73119692839038,
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 75578
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.142476637125338,
-      "end_time": 30.97350373234309,
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-      "utterance_id": "3546-175390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 69878
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_044170.json b/conversations/conv_044170.json
deleted file mode 100644
index 46cd00a4b8b6ad24b694465b20db91cf0a386402..0000000000000000000000000000000000000000
--- a/conversations/conv_044170.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "1809",
-      "position_frames": 84943
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129797.flac |",
-      "real_speaker_id": "557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3446-144019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3446-144019.flac |",
-      "real_speaker_id": "3446",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 176361
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-  "background_events": [
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-      "event_class": "Frying",
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-      "speaker_id": "557"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044185.json b/conversations/conv_044185.json
deleted file mode 100644
index edf9cc767eac267e1671178db6d5cd0cddbaa3a5..0000000000000000000000000000000000000000
--- a/conversations/conv_044185.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.253619551950276,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1069-133709.flac |",
-      "real_speaker_id": "1069",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "1069",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.585439874737126,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7569/cough/0112.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044189.json b/conversations/conv_044189.json
deleted file mode 100644
index 81a0c7e6e3af6e7cb15cff893fbd768bec4170b6..0000000000000000000000000000000000000000
--- a/conversations/conv_044189.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.752943511539886,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5350-205002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205002.flac |",
-      "real_speaker_id": "5350",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.699519250545616,
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-      "utterance_id": "6076-51654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51654.flac |",
-      "real_speaker_id": "6076",
-      "position_frames": 0
-    },
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\ No newline at end of file
diff --git a/conversations/conv_044192.json b/conversations/conv_044192.json
deleted file mode 100644
index 040394b46c45b81795bfd5470d21ae41ba626c74..0000000000000000000000000000000000000000
--- a/conversations/conv_044192.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8176-115046.flac |",
-      "real_speaker_id": "8176",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_044193.json b/conversations/conv_044193.json
deleted file mode 100644
index 84621f7022d3db5ec7380054c4387eaba181b13c..0000000000000000000000000000000000000000
--- a/conversations/conv_044193.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
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\ No newline at end of file
diff --git a/conversations/conv_044202.json b/conversations/conv_044202.json
deleted file mode 100644
index 8fb8d72a59615df4f371fcc8a2ca09b4f78bf160..0000000000000000000000000000000000000000
--- a/conversations/conv_044202.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6882/cough/0089.wav",
-      "duration": 0.9050095729110272,
-      "start_time": 19.62610639863322,
-      "speaker_id": "6882"
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-      "event_class": "laugh",
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-      "start_time": 24.197968938596162,
-      "speaker_id": "6882"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044203.json b/conversations/conv_044203.json
deleted file mode 100644
index 81bdda5cd405d1345d63969e07038e0a6c15fb84..0000000000000000000000000000000000000000
--- a/conversations/conv_044203.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.709805581603847,
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-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.103895058147682,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125943.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.307460892248827,
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-      "duration_frames": 105675,
-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 107356
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.76892151197521,
-      "end_time": 24.27519336627916,
-      "duration": 3.5062718543039493,
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-      "utterance_id": "335-125941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125941.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.39613662055329,
-      "end_time": 29.96758337601934,
-      "duration": 5.571446755466054,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 213031
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.643516749032358,
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-      "duration": 1.356483250967642,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 302174
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-      "event_class": "Cat",
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-      "duration": 1.04,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/335/laugh/0100.wav",
-      "duration": 1.2,
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-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 9.37430035440616,
-      "speaker_id": "335"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044213.json b/conversations/conv_044213.json
deleted file mode 100644
index 512c2edea346235a16f2cba8fe9390150e8a5b8c..0000000000000000000000000000000000000000
--- a/conversations/conv_044213.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "8118-114476",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8118-114476.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-14013.flac |",
-      "real_speaker_id": "4145",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-104606.flac |",
-      "real_speaker_id": "4145",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.209042038584386,
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-      "overlap": true,
-      "utterance_id": "274-121398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121398.flac |",
-      "real_speaker_id": "274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.666007947021996,
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-      "utterance_id": "4145-104606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-104606.flac |",
-      "real_speaker_id": "4145",
-      "position_frames": 71300
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-      "duration": 1.08,
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044214.json b/conversations/conv_044214.json
deleted file mode 100644
index 040518bc9d55c2a0bafae93f4ce20dfdd453f8a8..0000000000000000000000000000000000000000
--- a/conversations/conv_044214.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
-      "real_speaker_id": "7732",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7732-107520",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_044218.json b/conversations/conv_044218.json
deleted file mode 100644
index c24b5805eef8f8bc43a75efc886836bcdac63137..0000000000000000000000000000000000000000
--- a/conversations/conv_044218.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
-      "segment_id": "seg0001",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8033/laugh/0148.wav",
-      "duration": 0.5411091271160428,
-      "start_time": 4.564197990478148,
-      "speaker_id": "8033"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8033/cough/0056.wav",
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-      "speaker_id": "8033"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3288/cough/0062.wav",
-      "duration": 0.8931624883603027,
-      "start_time": 16.835663681938666,
-      "speaker_id": "3288"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8033/laugh/0041.wav",
-      "duration": 1.08,
-      "start_time": 29.970767145528136,
-      "speaker_id": "8033"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044222.json b/conversations/conv_044222.json
deleted file mode 100644
index 2ca67f639497311aa6540d1263d8fe1f4d3e5761..0000000000000000000000000000000000000000
--- a/conversations/conv_044222.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.46911261964365,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.478832190921636,
-      "duration": 5.478832190921636,
-      "start_frame": 0,
-      "duration_frames": 87661,
-      "overlap": false,
-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.210772530327595,
-      "end_time": 12.814484138940557,
-      "duration": 6.603711608612962,
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-      "utterance_id": "7073-83692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-83692.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.438059912306878,
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-      "duration": 6.053862188926443,
-      "start_frame": 215008,
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-      "overlap": false,
-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 87661
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.7683932437817,
-      "end_time": 23.76500909782611,
-      "duration": 3.9966158540444106,
-      "start_frame": 316294,
-      "duration_frames": 63945,
-      "overlap": false,
-      "utterance_id": "5322-7680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5322-7680.flac |",
-      "real_speaker_id": "5322",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.890051957158988,
-      "end_time": 29.981181990916568,
-      "duration": 6.0911300337575796,
-      "start_frame": 382240,
-      "duration_frames": 97458,
-      "overlap": true,
-      "utterance_id": "7073-83692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-83692.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 105659
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.487249543426593,
-      "end_time": 31.46911261964365,
-      "duration": 0.9818630762170564,
-      "start_frame": 487795,
-      "duration_frames": 15709,
-      "overlap": true,
-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 184522
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.12,
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5322/cough/0049.wav",
-      "duration": 0.8370069484012754,
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-      "speaker_id": "5322"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7073/laugh/0023.wav",
-      "duration": 1.16,
-      "start_time": 25.767980769857886,
-      "speaker_id": "7073"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044229.json b/conversations/conv_044229.json
deleted file mode 100644
index 6c5839bcb4570f70f0b633c21bff140d477f20f4..0000000000000000000000000000000000000000
--- a/conversations/conv_044229.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.25187853397221,
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-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 74972
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "duration_frames": 52348,
-      "overlap": false,
-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 146341
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.75031382180599,
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-      "duration": 5.5906872069904665,
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-      "duration_frames": 89450,
-      "overlap": false,
-      "utterance_id": "7859-102518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7859-102518.flac |",
-      "real_speaker_id": "7859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.512607674383595,
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-      "duration": 3.9519103940626885,
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-      "overlap": false,
-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 198689
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.744202690972216,
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-      "duration": 2.255797309027784,
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-      "duration_frames": 36092,
-      "overlap": false,
-      "utterance_id": "7859-102521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7859-102521.flac |",
-      "real_speaker_id": "7859",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "duration": 1.0277321772793382,
-      "start_time": 28.63966009614348,
-      "speaker_id": "7859"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044234.json b/conversations/conv_044234.json
deleted file mode 100644
index 4e6c06441bdbd8ab40ba57856a46f93c0e295289..0000000000000000000000000000000000000000
--- a/conversations/conv_044234.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.120366719282206,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.8719395623135626,
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-      "overlap": false,
-      "utterance_id": "446-123501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123501.flac |",
-      "real_speaker_id": "446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.386230518497938,
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-      "overlap": false,
-      "utterance_id": "6446-40571",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40571.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1638-84447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84447.flac |",
-      "real_speaker_id": "1638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.217991693664542,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123501.flac |",
-      "real_speaker_id": "446",
-      "position_frames": 61951
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.035119204224372,
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-      "utterance_id": "6446-40544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6446-40544.flac |",
-      "real_speaker_id": "6446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.750287823303207,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123501.flac |",
-      "real_speaker_id": "446",
-      "position_frames": 146634
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_8.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "start_time": 13.216503583779051,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044238.json b/conversations/conv_044238.json
deleted file mode 100644
index f1ae1d2951e56a2891d60dc7afc8ec5a16d8c44d..0000000000000000000000000000000000000000
--- a/conversations/conv_044238.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 5.148829484629416,
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-      "overlap": false,
-      "utterance_id": "4495-18533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-18533.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "2654-158744",
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-      "real_speaker_id": "2654",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3807-4955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 0
-    },
-    {
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-    {
-      "segment_id": "seg0005",
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-      "end_time": 32.0,
-      "duration": 2.8139880070809973,
-      "start_frame": 466976,
-      "duration_frames": 45023,
-      "overlap": false,
-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 73431
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 13.27953914190161
-    },
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.7428231546026147,
-      "start_time": 3.3932187953538495
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4495/laugh/0020.wav",
-      "duration": 1.12,
-      "start_time": 28.148559661244953,
-      "speaker_id": "4495"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044243.json b/conversations/conv_044243.json
deleted file mode 100644
index d5f65e3b082c5b3f99d1ef69373cfbf98f8deb91..0000000000000000000000000000000000000000
--- a/conversations/conv_044243.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.7692414508125065,
-      "duration": 6.7692414508125065,
-      "start_frame": 0,
-      "duration_frames": 108307,
-      "overlap": false,
-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 8.284594951787435,
-      "end_time": 13.51780526204965,
-      "duration": 5.233210310262216,
-      "start_frame": 132553,
-      "duration_frames": 83731,
-      "overlap": false,
-      "utterance_id": "7859-102521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7859-102521.flac |",
-      "real_speaker_id": "7859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.36087236973538,
-      "end_time": 20.016094284668284,
-      "duration": 5.655221914932905,
-      "start_frame": 229773,
-      "duration_frames": 90483,
-      "overlap": false,
-      "utterance_id": "55-121068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121068.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.514355077394608,
-      "end_time": 27.138159871006838,
-      "duration": 6.62380479361223,
-      "start_frame": 328229,
-      "duration_frames": 105980,
-      "overlap": true,
-      "utterance_id": "7859-102518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7859-102518.flac |",
-      "real_speaker_id": "7859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 28.501146965565475,
-      "end_time": 32.0,
-      "duration": 3.498853034434525,
-      "start_frame": 456018,
-      "duration_frames": 55981,
-      "overlap": false,
-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 108307
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 16.561632653061224,
-      "start_time": 3.310688452582265
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_5.wav",
-      "duration": 1.0079818594104308,
-      "start_time": 3.2854190151647735
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7859/cough/0041.wav",
-      "duration": 0.5627332805082905,
-      "start_time": 19.93409674216589,
-      "speaker_id": "7859"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044254.json b/conversations/conv_044254.json
deleted file mode 100644
index 6b0399c1db42b1903e35b3345e444525a7120c53..0000000000000000000000000000000000000000
--- a/conversations/conv_044254.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7744871577185384,
-      "duration": 3.7744871577185384,
-      "start_frame": 0,
-      "duration_frames": 60391,
-      "overlap": false,
-      "utterance_id": "614-161065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-161065.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.505312711687902,
-      "end_time": 8.285861957262249,
-      "duration": 3.780549245574346,
-      "start_frame": 72085,
-      "duration_frames": 60488,
-      "overlap": false,
-      "utterance_id": "1633-150458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-150458.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.635661941235725,
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-      "overlap": false,
-      "utterance_id": "614-6500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.95536641540567,
-      "end_time": 20.049498083741767,
-      "duration": 5.094131668336096,
-      "start_frame": 239285,
-      "duration_frames": 81506,
-      "overlap": false,
-      "utterance_id": "5009-29143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.718932865789903,
-      "end_time": 24.379317291405517,
-      "duration": 4.660384425615614,
-      "start_frame": 315502,
-      "duration_frames": 74566,
-      "overlap": true,
-      "utterance_id": "5009-2500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-2500.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.110620584732093,
-      "end_time": 29.313459406856108,
-      "duration": 4.202838822124014,
-      "start_frame": 401769,
-      "duration_frames": 67245,
-      "overlap": true,
-      "utterance_id": "614-161065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-161065.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 60391
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.183477995832636,
-      "end_time": 32.0,
-      "duration": 1.8165220041673642,
-      "start_frame": 482935,
-      "duration_frames": 29064,
-      "overlap": false,
-      "utterance_id": "1633-150458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-150458.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 60488
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
-      "duration": 22.56219954648526,
-      "start_time": 0.17118093681921484
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1633/laugh/0051.wav",
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-      "start_time": 8.397815394142988,
-      "speaker_id": "1633"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/614/laugh/0110.wav",
-      "duration": 1.04,
-      "start_time": 10.713588946886514,
-      "speaker_id": "614"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044255.json b/conversations/conv_044255.json
deleted file mode 100644
index 2e343e48fd83d372402fa32980cf87582d167d2b..0000000000000000000000000000000000000000
--- a/conversations/conv_044255.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 70710,
-      "overlap": false,
-      "utterance_id": "7046-85651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-85651.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.808791662285164,
-      "end_time": 10.783116124560966,
-      "duration": 4.974324462275801,
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-      "duration_frames": 79589,
-      "overlap": false,
-      "utterance_id": "3294-167609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167609.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.34799994337107,
-      "end_time": 17.01152261815869,
-      "duration": 5.663522674787619,
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-      "duration_frames": 90616,
-      "overlap": false,
-      "utterance_id": "7046-85651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-85651.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 70710
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.544051948838852,
-      "end_time": 22.46621767368969,
-      "duration": 4.92216572485084,
-      "start_frame": 280704,
-      "duration_frames": 78754,
-      "overlap": false,
-      "utterance_id": "3294-167609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167609.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 79589
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.31176934782824,
-      "end_time": 28.259345480070483,
-      "duration": 4.9475761322422445,
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-      "overlap": false,
-      "utterance_id": "398-123602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-123602.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.378697772551515,
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-      "duration": 2.621302227448485,
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-      "duration_frames": 41940,
-      "overlap": false,
-      "utterance_id": "398-130093",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/398-130093.flac |",
-      "real_speaker_id": "398",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
-      "duration": 1.9111152204970132,
-      "start_time": 10.367882038580632
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7046/laugh/0002.wav",
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-      "speaker_id": "7046"
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-    {
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-      "start_time": 0,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3294/cough/0072.wav",
-      "duration": 0.4487106896175972,
-      "start_time": 10.87341308585766,
-      "speaker_id": "3294"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7046/laugh/0007.wav",
-      "duration": 1.3524286296495527,
-      "start_time": 15.50819790618083,
-      "speaker_id": "7046"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3294/cough/0083.wav",
-      "duration": 0.3233930916479097,
-      "start_time": 22.622763654578325,
-      "speaker_id": "3294"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/398/laugh/0058.wav",
-      "duration": 1.6,
-      "start_time": 21.573752451299576,
-      "speaker_id": "398"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044259.json b/conversations/conv_044259.json
deleted file mode 100644
index 7c3742094ced70c3844d6ca4db1f1efb31bf8994..0000000000000000000000000000000000000000
--- a/conversations/conv_044259.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.66710327760689,
-      "duration": 5.66710327760689,
-      "start_frame": 0,
-      "duration_frames": 90673,
-      "overlap": false,
-      "utterance_id": "3493-46712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.223150490777704,
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-      "overlap": false,
-      "utterance_id": "6685-70976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70976.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 77374,
-      "overlap": false,
-      "utterance_id": "3493-46712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 90673
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.151558900906778,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70976.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 85330
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3857",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 168047
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-  "background_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6685/laugh/0022.wav",
-      "duration": 1.8,
-      "start_time": 11.748865998638156,
-      "speaker_id": "6685"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6685/laugh/0063.wav",
-      "duration": 1.1451624729386816,
-      "start_time": 18.103662423258587,
-      "speaker_id": "6685"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044263.json b/conversations/conv_044263.json
deleted file mode 100644
index 53e96c6b6fe9d57ecef7f95ea7ebc00775bbe378..0000000000000000000000000000000000000000
--- a/conversations/conv_044263.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.640311824169907,
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-      "overlap": false,
-      "utterance_id": "3867-173237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173237.flac |",
-      "real_speaker_id": "3867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.0748796204472315,
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-      "duration": 5.230166093961385,
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-      "duration_frames": 83682,
-      "overlap": false,
-      "utterance_id": "3744-177438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-177438.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.804883703428912,
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-      "duration_frames": 77656,
-      "overlap": false,
-      "utterance_id": "3867-173237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173237.flac |",
-      "real_speaker_id": "3867",
-      "position_frames": 90244
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.00070106041522,
-      "end_time": 21.028396199550357,
-      "duration": 4.0276951391351385,
-      "start_frame": 272011,
-      "duration_frames": 64443,
-      "overlap": false,
-      "utterance_id": "3744-177438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-177438.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 83682
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.167258074092015,
-      "end_time": 28.523071063290374,
-      "duration": 6.355812989198358,
-      "start_frame": 354676,
-      "duration_frames": 101693,
-      "overlap": false,
-      "utterance_id": "3744-178590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178590.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.13390244437748,
-      "end_time": 32.0,
-      "duration": 2.8660975556225203,
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-      "duration_frames": 45857,
-      "overlap": false,
-      "utterance_id": "3744-178594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178594.flac |",
-      "real_speaker_id": "3744",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3744/laugh/0126.wav",
-      "duration": 1.28,
-      "start_time": 4.787810667727334,
-      "speaker_id": "3744"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044268.json b/conversations/conv_044268.json
deleted file mode 100644
index 66f216efc963da5a963dd8625ac60e923774e4bb..0000000000000000000000000000000000000000
--- a/conversations/conv_044268.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.102049367929074,
-      "duration": 4.102049367929074,
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-      "overlap": false,
-      "utterance_id": "413-12292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-12292.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.8391255895906955,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-224.flac |",
-      "real_speaker_id": "246",
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-      "overlap": true,
-      "utterance_id": "413-22437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22437.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.405112921282166,
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-      "duration": 5.3770650190048395,
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-      "overlap": true,
-      "utterance_id": "413-12292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-12292.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 65632
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.29936888296217,
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-      "duration": 5.185313478076078,
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-      "overlap": false,
-      "utterance_id": "816-53638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
-      "real_speaker_id": "816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.38478238218146,
-      "end_time": 32.0,
-      "duration": 3.6152176178185407,
-      "start_frame": 454156,
-      "duration_frames": 57843,
-      "overlap": false,
-      "utterance_id": "246-224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-224.flac |",
-      "real_speaker_id": "246",
-      "position_frames": 93041
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/413/laugh/0093.wav",
-      "duration": 1.16,
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 20.872885997385403,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/816/laugh/0044.wav",
-      "duration": 1.3556372835464567,
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-      "speaker_id": "816"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/246/cough/0044.wav",
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-      "start_time": 31.32972711439908,
-      "speaker_id": "246"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044275.json b/conversations/conv_044275.json
deleted file mode 100644
index 2ce899d1ff3a320c29040b3b0d43429bb7873d88..0000000000000000000000000000000000000000
--- a/conversations/conv_044275.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4591-14356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-14356.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.733832543703149,
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-      "duration": 4.302024850070926,
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-      "duration_frames": 68832,
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-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.72174611770715,
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-      "duration_frames": 63834,
-      "overlap": true,
-      "utterance_id": "3905-172165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-172165.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.174054405433072,
-      "end_time": 21.63691309378683,
-      "duration": 5.462858688353758,
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-      "duration_frames": 87405,
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-      "utterance_id": "4591-14356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-14356.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 93085
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 68832
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 2.965392930101064,
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-      "overlap": false,
-      "utterance_id": "4591-14356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-14356.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 180490
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_7.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4591/cough/0099.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8168/cough/0069.wav",
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-      "start_time": 21.425023053008292,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4591/laugh/0066.wav",
-      "duration": 1.12,
-      "start_time": 30.787194732878675,
-      "speaker_id": "4591"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044279.json b/conversations/conv_044279.json
deleted file mode 100644
index 094f27e556c2a4e71a4c290c6e8b37b49beabfef..0000000000000000000000000000000000000000
--- a/conversations/conv_044279.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.556692031250744,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.588201331735189,
-      "duration": 4.588201331735189,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5164-19211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5164-19211.flac |",
-      "real_speaker_id": "5164",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4484-37119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4484-37119.flac |",
-      "real_speaker_id": "4484",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "4484",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 166031
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_044280.json b/conversations/conv_044280.json
deleted file mode 100644
index 80363b84a98c0af2179f4355cdd9df7576c742c5..0000000000000000000000000000000000000000
--- a/conversations/conv_044280.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.645896744159973,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6000-55211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-55211.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 0
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-    {
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-86686.flac |",
-      "real_speaker_id": "6000",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 27.640103230783954,
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-      "overlap": false,
-      "utterance_id": "8466-274557",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-274557.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "speaker_id": "8466"
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-}
\ No newline at end of file
diff --git a/conversations/conv_044287.json b/conversations/conv_044287.json
deleted file mode 100644
index ea41c819a3d0821294da248463838aa0913b9692..0000000000000000000000000000000000000000
--- a/conversations/conv_044287.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40561.flac |",
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-      "real_speaker_id": "5980",
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-      "real_speaker_id": "7802",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
-      "position_frames": 79391
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104391.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 81467
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-  "background_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044291.json b/conversations/conv_044291.json
deleted file mode 100644
index a63943ed06efe25a45ca9658c72e3093e7c82871..0000000000000000000000000000000000000000
--- a/conversations/conv_044291.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.3104717680427,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2691-156745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156745.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156755.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_044296.json b/conversations/conv_044296.json
deleted file mode 100644
index 20c2ec1ecdb2579587b66bff0e6fc6aa4f631ad6..0000000000000000000000000000000000000000
--- a/conversations/conv_044296.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_044306.json b/conversations/conv_044306.json
deleted file mode 100644
index 888f49b10ec7993743a9dac04105c1dd86f259af..0000000000000000000000000000000000000000
--- a/conversations/conv_044306.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-85685.flac |",
-      "real_speaker_id": "2929",
-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8536-244441.flac |",
-      "real_speaker_id": "8536",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "2929-85685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-85685.flac |",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_044310.json b/conversations/conv_044310.json
deleted file mode 100644
index 8785afa07f8486f541874e88d3764010c9a581e2..0000000000000000000000000000000000000000
--- a/conversations/conv_044310.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2003",
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-      "real_speaker_id": "2660",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2660-173229",
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-      "real_speaker_id": "2660",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-      "speaker_id": "2660"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044326.json b/conversations/conv_044326.json
deleted file mode 100644
index 150cd8dc5225ce492a180db98016b192dab3d8a7..0000000000000000000000000000000000000000
--- a/conversations/conv_044326.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7839-109876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109876.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287363.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-110063.flac |",
-      "real_speaker_id": "7839",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-15446.flac |",
-      "real_speaker_id": "688",
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-    {
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-      "utterance_id": "688-1070",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_044330.json b/conversations/conv_044330.json
deleted file mode 100644
index f02a56fc423b07919344bd857cf6c03cbe07667f..0000000000000000000000000000000000000000
--- a/conversations/conv_044330.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.956459420110956,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.1204353381624435,
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\ No newline at end of file
diff --git a/conversations/conv_044346.json b/conversations/conv_044346.json
deleted file mode 100644
index 21ec2633169d00e3861cae2c819d858a22032548..0000000000000000000000000000000000000000
--- a/conversations/conv_044346.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-125880.flac |",
-      "real_speaker_id": "402",
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\ No newline at end of file
diff --git a/conversations/conv_044347.json b/conversations/conv_044347.json
deleted file mode 100644
index 6e2d7be658f5c9f50e417b769e34459f9a2984fd..0000000000000000000000000000000000000000
--- a/conversations/conv_044347.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_044351.json b/conversations/conv_044351.json
deleted file mode 100644
index a249d7b72c33e2e3ea45b6f7705e71e2c858668c..0000000000000000000000000000000000000000
--- a/conversations/conv_044351.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3082/laugh/0002.wav",
-      "duration": 1.48,
-      "start_time": 21.662611783022175,
-      "speaker_id": "3082"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044356.json b/conversations/conv_044356.json
deleted file mode 100644
index 8c02b96998b2e1a077cb44a6f7d6a6bb307a20aa..0000000000000000000000000000000000000000
--- a/conversations/conv_044356.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.884851435061463,
-      "duration": 4.884851435061463,
-      "start_frame": 0,
-      "duration_frames": 78157,
-      "overlap": false,
-      "utterance_id": "7708-296091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-296091.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.2272647791423035,
-      "end_time": 8.928174214387274,
-      "duration": 3.7009094352449705,
-      "start_frame": 83636,
-      "duration_frames": 59214,
-      "overlap": false,
-      "utterance_id": "1767-142941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142941.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.280500214003418,
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-      "overlap": false,
-      "utterance_id": "7708-290368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-290368.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.617233910658257,
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-      "overlap": true,
-      "utterance_id": "9023-296467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296467.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.010833043823304,
-      "end_time": 24.74735590683374,
-      "duration": 3.736522863010436,
-      "start_frame": 336173,
-      "duration_frames": 59784,
-      "overlap": false,
-      "utterance_id": "9023-296468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.151882674387632,
-      "end_time": 31.531814308303986,
-      "duration": 5.379931633916355,
-      "start_frame": 418430,
-      "duration_frames": 86078,
-      "overlap": false,
-      "utterance_id": "1767-142944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142944.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.672413625808495,
-      "end_time": 32.0,
-      "duration": 0.3275863741915046,
-      "start_frame": 506758,
-      "duration_frames": 5241,
-      "overlap": false,
-      "utterance_id": "9023-296468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 59784
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.67026962928329,
-      "start_time": 26.617443771261048
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
-      "duration": 0.2245124716553288,
-      "start_time": 5.676062684099472
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7708/laugh/0054.wav",
-      "duration": 1.36,
-      "start_time": 7.657884584037552,
-      "speaker_id": "7708"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/9023/laugh/0066.wav",
-      "duration": 0.540762876585634,
-      "start_time": 20.201546647886634,
-      "speaker_id": "9023"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/9023/laugh/0039.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "9023"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044367.json b/conversations/conv_044367.json
deleted file mode 100644
index 774cf45d56e9d9683e08f7c9328ba1cb00f171ed..0000000000000000000000000000000000000000
--- a/conversations/conv_044367.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.547097922865215,
-      "duration": 4.547097922865215,
-      "start_frame": 0,
-      "duration_frames": 72753,
-      "overlap": false,
-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.02395735331043,
-      "end_time": 11.081535995015628,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "6906-65918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65918.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.259236332888419,
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-      "duration": 4.3683968269306135,
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-      "duration_frames": 69894,
-      "overlap": false,
-      "utterance_id": "8388-278289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8388-278289.flac |",
-      "real_speaker_id": "8388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.000690724970255,
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-      "duration": 4.503764924903994,
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-      "duration_frames": 72060,
-      "overlap": false,
-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 72753
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.735365237388308,
-      "end_time": 30.65304904337843,
-      "duration": 4.917683805990123,
-      "start_frame": 411765,
-      "duration_frames": 78682,
-      "overlap": false,
-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 96921
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.37694268837997,
-      "end_time": 32.0,
-      "duration": 0.6230573116200304,
-      "start_frame": 502031,
-      "duration_frames": 9968,
-      "overlap": false,
-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 175603
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 9.965860708793404
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_15.wav",
-      "duration": 1.1194331065759637,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2882/cough/0011.wav",
-      "duration": 1.4214359715357476,
-      "start_time": 3.4423935110977024,
-      "speaker_id": "2882"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6906/laugh/0039.wav",
-      "duration": 1.22,
-      "start_time": 11.915359009459177,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8388/laugh/0090.wav",
-      "duration": 1.08,
-      "start_time": 18.215804517289932,
-      "speaker_id": "8388"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044371.json b/conversations/conv_044371.json
deleted file mode 100644
index f8d11568f856d19f576ab0bdad6e11f6d3c631df..0000000000000000000000000000000000000000
--- a/conversations/conv_044371.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 4.452855667645261,
-      "start_frame": 0,
-      "duration_frames": 71245,
-      "overlap": false,
-      "utterance_id": "4243-187024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-187024.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.051043645762218,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14912.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4447-14919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.080675722130024,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 79110
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8430-172387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8430-172387.flac |",
-      "real_speaker_id": "8430",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.782861655686986,
-      "end_time": 32.0,
-      "duration": 4.217138344313014,
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-      "duration_frames": 67474,
-      "overlap": false,
-      "utterance_id": "4243-187023",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-187023.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
-      "duration": 0.29401360544217686,
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4243/cough/0003.wav",
-      "duration": 1.06,
-      "start_time": 0,
-      "speaker_id": "4243"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4447/laugh/0118.wav",
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-      "start_time": 11.17434119436519,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4447/laugh/0117.wav",
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-      "speaker_id": "4447"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044383.json b/conversations/conv_044383.json
deleted file mode 100644
index 044b33cf976acaa4d47aa06978e9c8c2eeecddfe..0000000000000000000000000000000000000000
--- a/conversations/conv_044383.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "637-127595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/637-127595.flac |",
-      "real_speaker_id": "637",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3992",
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-      "real_speaker_id": "6534",
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-    {
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3992-714.flac |",
-      "real_speaker_id": "3992",
-      "position_frames": 191963
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "speaker_id": "3992"
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-}
\ No newline at end of file
diff --git a/conversations/conv_044384.json b/conversations/conv_044384.json
deleted file mode 100644
index e37f69db1c609836779b1113f478c51298fb8d0b..0000000000000000000000000000000000000000
--- a/conversations/conv_044384.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-293168.flac |",
-      "real_speaker_id": "8506",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141268.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 77702
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.40086845420356,
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-      "utterance_id": "8506-287660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-287660.flac |",
-      "real_speaker_id": "8506",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_044388.json b/conversations/conv_044388.json
deleted file mode 100644
index 3b836a3ca2f52a39350ad3175c9933d67af70691..0000000000000000000000000000000000000000
--- a/conversations/conv_044388.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4358",
-      "position_frames": 0
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-      "real_speaker_id": "4358",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
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-      "real_speaker_id": "4331",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-44937.flac |",
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-      "start_time": 31.24,
-      "speaker_id": "4358"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044392.json b/conversations/conv_044392.json
deleted file mode 100644
index 92e0dd1bb7c71c7baa86f9132415b079809bd9fb..0000000000000000000000000000000000000000
--- a/conversations/conv_044392.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "duration_frames": 77883,
-      "overlap": false,
-      "utterance_id": "1018-133447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1018-133447.flac |",
-      "real_speaker_id": "1018",
-      "position_frames": 0
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-      "real_speaker_id": "1754",
-      "position_frames": 0
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-      "utterance_id": "1018-135221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1018-135221.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
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-      "real_speaker_id": "1018",
-      "position_frames": 74852
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1018-133447",
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-      "real_speaker_id": "1018",
-      "position_frames": 77883
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_044395.json b/conversations/conv_044395.json
deleted file mode 100644
index a916aadbf62a01e5830cc2a6306689267cbc8a47..0000000000000000000000000000000000000000
--- a/conversations/conv_044395.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.97219831355472,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-132753.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124994.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.80612093578123,
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-      "utterance_id": "3340-169293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-169293.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044403.json b/conversations/conv_044403.json
deleted file mode 100644
index c4be9f2ee4f8493e1470dd18000717df1077454f..0000000000000000000000000000000000000000
--- a/conversations/conv_044403.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.93082324623923,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-148993.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/122-121734.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121916.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-137739.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 81036
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-      "utterance_id": "39-121916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121916.flac |",
-      "real_speaker_id": "39",
-      "position_frames": 101692
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_044404.json b/conversations/conv_044404.json
deleted file mode 100644
index 9c7c8486ae33ee3f7095a01c53e37e717da80dcc..0000000000000000000000000000000000000000
--- a/conversations/conv_044404.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133295.flac |",
-      "real_speaker_id": "1710",
-      "position_frames": 86922
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044408.json b/conversations/conv_044408.json
deleted file mode 100644
index 1965ef0a6a01a339e1952335fef6743d3fb198f0..0000000000000000000000000000000000000000
--- a/conversations/conv_044408.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "position_frames": 0
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-    {
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-      "utterance_id": "6540-232291",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6098/cough/0006.wav",
-      "duration": 1.472674563244117,
-      "start_time": 29.70335025361651,
-      "speaker_id": "6098"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6540/laugh/0000.wav",
-      "duration": 0.7620877554419176,
-      "start_time": 29.186954495778185,
-      "speaker_id": "6540"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044412.json b/conversations/conv_044412.json
deleted file mode 100644
index 8a905d548612837f6f006286b09b8955ff684f75..0000000000000000000000000000000000000000
--- a/conversations/conv_044412.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.983625822279606,
-      "duration": 3.983625822279606,
-      "start_frame": 0,
-      "duration_frames": 63738,
-      "overlap": false,
-      "utterance_id": "2167-149881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149881.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.240253384178116,
-      "end_time": 10.409791102598529,
-      "duration": 6.169537718420413,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149881.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 63738
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.250682458691447,
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-      "utterance_id": "4013-11734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-11734.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.85165222023012,
-      "end_time": 19.338575736306968,
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-      "overlap": false,
-      "utterance_id": "2167-149880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149880.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.084172542827243,
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-      "duration_frames": 95560,
-      "overlap": true,
-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.09129567585903,
-      "end_time": 30.680222233462562,
-      "duration": 4.588926557603531,
-      "start_frame": 417460,
-      "duration_frames": 73422,
-      "overlap": false,
-      "utterance_id": "2167-149880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149880.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 71790
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.170400695528993,
-      "end_time": 32.0,
-      "duration": 0.8295993044710066,
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-      "duration_frames": 13273,
-      "overlap": false,
-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 95560
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.5188614852560702,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/432755.wav",
-      "duration": 0.2939909297052154,
-      "start_time": 21.180134421135914
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4013/laugh/0111.wav",
-      "duration": 1.2,
-      "start_time": 14.710611737601,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2167/cough/0050.wav",
-      "duration": 0.5820867533480806,
-      "start_time": 25.446086904914925,
-      "speaker_id": "2167"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044415.json b/conversations/conv_044415.json
deleted file mode 100644
index 3610889e066868eb250c2d8fa8829ecb04f1d0bf..0000000000000000000000000000000000000000
--- a/conversations/conv_044415.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.360718243224303,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3638-758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-758.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.924386555252564,
-      "end_time": 7.100846450819612,
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-      "utterance_id": "1811-129443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1811-129443.flac |",
-      "real_speaker_id": "1811",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98876.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.227285929192885,
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-      "overlap": false,
-      "utterance_id": "1811-129443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1811-129443.flac |",
-      "real_speaker_id": "1811",
-      "position_frames": 50823
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.435308558200216,
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-      "overlap": false,
-      "utterance_id": "3638-696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.010382447478477,
-      "end_time": 28.43912328864677,
-      "duration": 3.428740841168293,
-      "start_frame": 400166,
-      "duration_frames": 54859,
-      "overlap": false,
-      "utterance_id": "1811-129443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1811-129443.flac |",
-      "real_speaker_id": "1811",
-      "position_frames": 155654
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.697885283736653,
-      "end_time": 32.0,
-      "duration": 2.302114716263347,
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-      "duration_frames": 36833,
-      "overlap": false,
-      "utterance_id": "3638-758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-758.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 53771
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
-      "duration": 14.690997732426304,
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3638/cough/0012.wav",
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-      "start_time": 0,
-      "speaker_id": "3638"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3638/laugh/0003.wav",
-      "duration": 1.68,
-      "start_time": 27.73344749554532,
-      "speaker_id": "3638"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044424.json b/conversations/conv_044424.json
deleted file mode 100644
index c2745d42513c9fee8ba9d9a6aef7d0909e6b13a7..0000000000000000000000000000000000000000
--- a/conversations/conv_044424.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.161406380541187,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7691-108625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-108625.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.587051004147713,
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-      "utterance_id": "4991-6180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4991-6180.flac |",
-      "real_speaker_id": "4991",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "4991-6180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4991-6180.flac |",
-      "real_speaker_id": "4991",
-      "position_frames": 71454
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.964247106786688,
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-      "overlap": false,
-      "utterance_id": "583-139009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.812222452470337,
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-      "utterance_id": "4991-6180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4991-6180.flac |",
-      "real_speaker_id": "4991",
-      "position_frames": 127424
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/583-139009.flac |",
-      "real_speaker_id": "583",
-      "position_frames": 75249
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.934812068105998,
-      "end_time": 31.161406380541187,
-      "duration": 1.2265943124351892,
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-      "duration_frames": 19625,
-      "overlap": true,
-      "utterance_id": "4991-6180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4991-6180.flac |",
-      "real_speaker_id": "4991",
-      "position_frames": 229833
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4991/laugh/0107.wav",
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-      "start_time": 12.887039636225923,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4991/laugh/0132.wav",
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-      "speaker_id": "4991"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/583/cough/0059.wav",
-      "duration": 1.0642218522328541,
-      "start_time": 30.374291515313963,
-      "speaker_id": "583"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044428.json b/conversations/conv_044428.json
deleted file mode 100644
index cf21bcbce1f1132d80d10305d2144bb3ae314373..0000000000000000000000000000000000000000
--- a/conversations/conv_044428.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "742-128034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128034.flac |",
-      "real_speaker_id": "742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.09057428650259,
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-      "utterance_id": "4234-187738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-187738.flac |",
-      "real_speaker_id": "4234",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "742-128033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/742-128033.flac |",
-      "real_speaker_id": "742",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8051-295385.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044432.json b/conversations/conv_044432.json
deleted file mode 100644
index cca61b4e4de1ee42c27fb98168c6a5aa51b6c8ca..0000000000000000000000000000000000000000
--- a/conversations/conv_044432.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-2772.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-152975.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-12546.flac |",
-      "real_speaker_id": "4108",
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-      "speaker_id": 0,
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-      "utterance_id": "681-161962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-161962.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.754833432374205,
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-      "utterance_id": "4108-12546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4108-12546.flac |",
-      "real_speaker_id": "4108",
-      "position_frames": 87995
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.988543302018343,
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-      "utterance_id": "4447-14931",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14931.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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\ No newline at end of file
diff --git a/conversations/conv_044442.json b/conversations/conv_044442.json
deleted file mode 100644
index 2116f54d3f4285e605b6152c30f603d61406a7ed..0000000000000000000000000000000000000000
--- a/conversations/conv_044442.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121771.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
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-      "position_frames": 66384
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "3370",
-      "position_frames": 0
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-      "utterance_id": "1274-121770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121770.flac |",
-      "real_speaker_id": "1274",
-      "position_frames": 101853
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "1274"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044444.json b/conversations/conv_044444.json
deleted file mode 100644
index 87fc94f76714cb9c4cdca83855ca28aa6c72f805..0000000000000000000000000000000000000000
--- a/conversations/conv_044444.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.42678198439843,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3532.flac |",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "2712",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "segment_id": "seg0006",
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-      "real_speaker_id": "2712",
-      "position_frames": 54084
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-    {
-      "event_class": "Frying",
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-      "speaker_id": "2712"
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-}
\ No newline at end of file
diff --git a/conversations/conv_044445.json b/conversations/conv_044445.json
deleted file mode 100644
index 7b4df2ebe1e7a9ef478bafc5ab7027ea5b418f0d..0000000000000000000000000000000000000000
--- a/conversations/conv_044445.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "segment_id": "seg0005",
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-      "start_time": 29.500166145556467,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 51029
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 2.2926100802068,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5038/laugh/0017.wav",
-      "duration": 1.52,
-      "start_time": 22.397702020295313,
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-      "event_class": "laugh",
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-      "speaker_id": "1379"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_044449.json b/conversations/conv_044449.json
deleted file mode 100644
index d535092d3e73d717b247976427c1e74168ca2693..0000000000000000000000000000000000000000
--- a/conversations/conv_044449.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "948-132705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132705.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.500936270632689,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-175357.flac |",
-      "real_speaker_id": "7389",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/948-132705.flac |",
-      "real_speaker_id": "948",
-      "position_frames": 69791
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1455-134435.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "948",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-292563.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "position_frames": 0
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "speaker_id": "948"
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-}
\ No newline at end of file
diff --git a/conversations/conv_044453.json b/conversations/conv_044453.json
deleted file mode 100644
index 65304a78104217ac2a16d1072dd2fd4d91bf5838..0000000000000000000000000000000000000000
--- a/conversations/conv_044453.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "8494-244431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244431.flac |",
-      "real_speaker_id": "8494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92805.flac |",
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-      "position_frames": 0
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-      "utterance_id": "8494-244443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244443.flac |",
-      "real_speaker_id": "8494",
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-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-96175.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6895-92805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92805.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 54001
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.1065755058671414,
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-      "duration_frames": 33705,
-      "overlap": false,
-      "utterance_id": "8494-244443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244443.flac |",
-      "real_speaker_id": "8494",
-      "position_frames": 100182
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
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-    {
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-      "duration": 1.4,
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-    {
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-    {
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-      "speaker_id": "6895"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044454.json b/conversations/conv_044454.json
deleted file mode 100644
index aa3876a1226b9b87bf1b45a179237e12e246cca7..0000000000000000000000000000000000000000
--- a/conversations/conv_044454.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "5910-53143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53143.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278206.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53143.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 106546
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "duration": 5.20636268058168,
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8143/laugh/0124.wav",
-      "duration": 0.8203027422508888,
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-      "speaker_id": "8143"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2774/laugh/0028.wav",
-      "duration": 1.44,
-      "start_time": 19.598556357404817,
-      "speaker_id": "2774"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5910/cough/0078.wav",
-      "duration": 0.4444682835787779,
-      "start_time": 19.680088030748674,
-      "speaker_id": "5910"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8143/laugh/0071.wav",
-      "duration": 0.5320967856423147,
-      "start_time": 31.467903214357687,
-      "speaker_id": "8143"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044465.json b/conversations/conv_044465.json
deleted file mode 100644
index c9e10ec711a07b67fe40e8e2c2859b96918c6b35..0000000000000000000000000000000000000000
--- a/conversations/conv_044465.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.8499886815756,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8563731340999094,
-      "duration": 3.8563731340999094,
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-      "duration_frames": 61701,
-      "overlap": false,
-      "utterance_id": "4853-27671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-27671.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.595324840763011,
-      "end_time": 7.8460364149147255,
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-      "utterance_id": "5952-50948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-50948.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.196239551442162,
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-      "duration": 6.591673249452912,
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-      "duration_frames": 105466,
-      "overlap": false,
-      "utterance_id": "4853-29413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-29413.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.328099022477375,
-      "end_time": 21.036162713213667,
-      "duration": 5.708063690736292,
-      "start_frame": 245249,
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-      "overlap": false,
-      "utterance_id": "598-127703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
-      "real_speaker_id": "598",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.31892014499413,
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-      "utterance_id": "5952-54019",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-54019.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.544570937865323,
-      "end_time": 30.8499886815756,
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-      "duration_frames": 52886,
-      "overlap": true,
-      "utterance_id": "598-127703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
-      "real_speaker_id": "598",
-      "position_frames": 91329
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "event_class": "Running_water",
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-      "speaker_id": "4853"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4853/cough/0036.wav",
-      "duration": 0.6850060163114198,
-      "start_time": 7.336371956769713,
-      "speaker_id": "4853"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5952/cough/0060.wav",
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-      "speaker_id": "5952"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044468.json b/conversations/conv_044468.json
deleted file mode 100644
index be87e1d811cf5d7600e3392fc1fd7997b904532c..0000000000000000000000000000000000000000
--- a/conversations/conv_044468.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7923-111564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111564.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.011132253590604,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-128036.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.225208722593386,
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-      "overlap": false,
-      "utterance_id": "208-126851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126851.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.268090972452477,
-      "end_time": 26.275163395959858,
-      "duration": 6.007072423507383,
-      "start_frame": 324289,
-      "duration_frames": 96113,
-      "overlap": false,
-      "utterance_id": "7923-111564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111564.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 99468
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.904143971928875,
-      "end_time": 32.0,
-      "duration": 5.095856028071125,
-      "start_frame": 430466,
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-      "overlap": false,
-      "utterance_id": "7938-109180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-109180.flac |",
-      "real_speaker_id": "7938",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7923/laugh/0015.wav",
-      "duration": 1.08,
-      "start_time": 0,
-      "speaker_id": "7923"
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-    {
-      "event_class": "laugh",
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-      "start_time": 31.396075469516273,
-      "speaker_id": "7938"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044469.json b/conversations/conv_044469.json
deleted file mode 100644
index 1a36ecc6b0a5299d3a48ac141235cfd8327972dc..0000000000000000000000000000000000000000
--- a/conversations/conv_044469.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-124547.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.007087823017266,
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-      "overlap": false,
-      "utterance_id": "1867-154071",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1867-154071.flac |",
-      "real_speaker_id": "1867",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1100-135264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-135264.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.904056237517135,
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-      "real_speaker_id": "8347",
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-    {
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-      "position_frames": 78802
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1867-148436",
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_044473.json b/conversations/conv_044473.json
deleted file mode 100644
index cfe203027996147791d4dca39ed8a5479e9b908f..0000000000000000000000000000000000000000
--- a/conversations/conv_044473.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.629742270186888,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4340-15220",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1878-122452",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 162915
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 18.734567668382574,
-      "start_time": 7.3803753079843855
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.190294418954267,
-      "start_time": 23.946942253464957
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_044486.json b/conversations/conv_044486.json
deleted file mode 100644
index e18e07a081022f43e4d25ad9e1b61af8263524f4..0000000000000000000000000000000000000000
--- a/conversations/conv_044486.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.7440008526090125,
-      "duration": 5.7440008526090125,
-      "start_frame": 0,
-      "duration_frames": 91904,
-      "overlap": false,
-      "utterance_id": "5296-26680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.991296832360519,
-      "end_time": 9.65479212249862,
-      "duration": 3.6634952901381,
-      "start_frame": 95860,
-      "duration_frames": 58615,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.89549097049172,
-      "end_time": 14.243992581528504,
-      "duration": 4.3485016110367845,
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-      "duration_frames": 69576,
-      "overlap": false,
-      "utterance_id": "2624-88360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.43092536949661,
-      "end_time": 19.564767991486622,
-      "duration": 5.133842621990013,
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-      "overlap": false,
-      "utterance_id": "5296-26680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 91904
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.03485420723442,
-      "end_time": 25.253999433677155,
-      "duration": 5.219145226442733,
-      "start_frame": 320557,
-      "duration_frames": 83506,
-      "overlap": false,
-      "utterance_id": "5296-26679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.445595725804743,
-      "end_time": 30.81944622763442,
-      "duration": 5.3738505018296765,
-      "start_frame": 407129,
-      "duration_frames": 85981,
-      "overlap": false,
-      "utterance_id": "2624-173598",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-173598.flac |",
-      "real_speaker_id": "2624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.934330965159006,
-      "end_time": 32.0,
-      "duration": 1.0656690348409938,
-      "start_frame": 494949,
-      "duration_frames": 17050,
-      "overlap": false,
-      "utterance_id": "5296-26680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 174045
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5296/cough/0064.wav",
-      "duration": 0.5534074411296729,
-      "start_time": 0,
-      "speaker_id": "5296"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2624/laugh/0018.wav",
-      "duration": 1.04,
-      "start_time": 11.799260702951205,
-      "speaker_id": "2624"
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-    {
-      "event_class": "cough",
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-      "start_time": 14.431167132708799,
-      "speaker_id": "2624"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5296/laugh/0014.wav",
-      "duration": 1.32,
-      "start_time": 12.989670211349702,
-      "speaker_id": "5296"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044487.json b/conversations/conv_044487.json
deleted file mode 100644
index 6dd02b671491e71282c0a34abb5ffaecd9bcb942..0000000000000000000000000000000000000000
--- a/conversations/conv_044487.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.0669465536309,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3912-77626",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-77626.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.417115817205061,
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-      "utterance_id": "6695-252325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252325.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.565029221390182,
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-      "duration": 6.842836764127637,
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-      "duration_frames": 109485,
-      "overlap": false,
-      "utterance_id": "3912-77626",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-77626.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 65071
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.278283120592825,
-      "end_time": 24.85091858186397,
-      "duration": 5.572635461271144,
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-      "duration_frames": 89162,
-      "overlap": false,
-      "utterance_id": "6695-252334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252334.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.443345000096762,
-      "end_time": 32.0,
-      "duration": 6.5566549999032375,
-      "start_frame": 407093,
-      "duration_frames": 104906,
-      "overlap": false,
-      "utterance_id": "3912-77626",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3912-77626.flac |",
-      "real_speaker_id": "3912",
-      "position_frames": 174556
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
-      "duration": 16.838049886621317,
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
-      "duration": 0.6165759637188208,
-      "start_time": 8.430738242761235
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3912/laugh/0068.wav",
-      "duration": 1.0,
-      "start_time": 18.590267605403653,
-      "speaker_id": "3912"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044490.json b/conversations/conv_044490.json
deleted file mode 100644
index 5dc8421dd6d1f03f3825d14160fed7732f7f7d3d..0000000000000000000000000000000000000000
--- a/conversations/conv_044490.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.404465532070755,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253244.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "6652-70974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70974.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.687750778477973,
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-      "duration_frames": 49891,
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-      "utterance_id": "7090-91801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7090-91801.flac |",
-      "real_speaker_id": "7090",
-      "position_frames": 73300
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6741-253244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253244.flac |",
-      "real_speaker_id": "6741",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "7090",
-      "position_frames": 123191
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "6652-70975",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-      "event_class": "Blender",
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-    {
-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6652/laugh/0068.wav",
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-      "speaker_id": "6652"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044500.json b/conversations/conv_044500.json
deleted file mode 100644
index ecc285a2ce8b7629903732308f41f064c039f5bd..0000000000000000000000000000000000000000
--- a/conversations/conv_044500.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.490860496970303,
-      "duration": 6.490860496970303,
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-      "overlap": false,
-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2989-138035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2989-138035.flac |",
-      "real_speaker_id": "2989",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8197-278199",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278199.flac |",
-      "real_speaker_id": "8197",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8197-278218.flac |",
-      "real_speaker_id": "8197",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044501.json b/conversations/conv_044501.json
deleted file mode 100644
index 9a7dea3d06ee829078b470b4e4f31553b1c401c0..0000000000000000000000000000000000000000
--- a/conversations/conv_044501.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.9070833251121284,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142286.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.141492620289995,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142276.flac |",
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-      "segment_id": "seg0004",
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-      "utterance_id": "7208-7768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 70851
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-      "speaker_id": 1,
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-      "utterance_id": "250-142276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142276.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 85385
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.332916202188855,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
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-      "position_frames": 124560
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-      "speaker_id": "7208"
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\ No newline at end of file
diff --git a/conversations/conv_044507.json b/conversations/conv_044507.json
deleted file mode 100644
index f3275cf8934628b9b4df069ef82d52f51f36343b..0000000000000000000000000000000000000000
--- a/conversations/conv_044507.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5890-44534.flac |",
-      "real_speaker_id": "5890",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-128659.flac |",
-      "real_speaker_id": "1183",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.141986548899357,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5890-72186.flac |",
-      "real_speaker_id": "5890",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 66303
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5890-72186.flac |",
-      "real_speaker_id": "5890",
-      "position_frames": 74440
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-      "duration": 1.52,
-      "start_time": 27.736207781615615,
-      "speaker_id": "353"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044511.json b/conversations/conv_044511.json
deleted file mode 100644
index 2c756ff177aaa78a118dccadc556c40ea8fa9a75..0000000000000000000000000000000000000000
--- a/conversations/conv_044511.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3792-176660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16002.flac |",
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-    {
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-      "real_speaker_id": "3792",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16003.flac |",
-      "real_speaker_id": "4490",
-      "position_frames": 0
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-      "utterance_id": "3792-176660",
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-      "position_frames": 199867
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/164574.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044516.json b/conversations/conv_044516.json
deleted file mode 100644
index 0d1a8c3015c63e83c629f807e536feb5f8560706..0000000000000000000000000000000000000000
--- a/conversations/conv_044516.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.46302740143423,
-  "num_speakers": 3,
-  "overlap_rate": 0.6,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "340-124368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "4936",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
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-      "position_frames": 94392
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
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-      "speaker_id": "340"
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-}
\ No newline at end of file
diff --git a/conversations/conv_044520.json b/conversations/conv_044520.json
deleted file mode 100644
index a6906cfa99e23115f5b60d0278186d32fc6b0e5b..0000000000000000000000000000000000000000
--- a/conversations/conv_044520.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.446473617028595,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-112687.flac |",
-      "real_speaker_id": "4295",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-112687.flac |",
-      "real_speaker_id": "4295",
-      "position_frames": 66785
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-      "speaker_id": 2,
-      "start_time": 16.91034327424118,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 66642
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.315205881998907,
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-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 49792
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.843610873466574,
-      "end_time": 32.0,
-      "duration": 1.1563891265334263,
-      "start_frame": 493497,
-      "duration_frames": 18502,
-      "overlap": false,
-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 152544
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
-      "duration": 19.530224028225934,
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.3,
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-      "event_class": "laugh",
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-      "speaker_id": "839"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044536.json b/conversations/conv_044536.json
deleted file mode 100644
index 908e05d6e4f29c9de151f4d617b54a7e53565ca4..0000000000000000000000000000000000000000
--- a/conversations/conv_044536.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "65-125860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-125860.flac |",
-      "real_speaker_id": "65",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.52441050498404,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11549.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
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-    {
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-      "utterance_id": "3318-164984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-164984.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.842381274260546,
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-      "overlap": false,
-      "utterance_id": "65-121089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/65-121089.flac |",
-      "real_speaker_id": "65",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4160-14187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-14187.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.205032462831685,
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-      "duration": 1.794967537168315,
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-      "duration_frames": 28719,
-      "overlap": false,
-      "utterance_id": "3318-185499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3318-185499.flac |",
-      "real_speaker_id": "3318",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "start_time": 16.600207329323617,
-      "speaker_id": "65"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4160/laugh/0081.wav",
-      "duration": 0.8675592635602011,
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-      "speaker_id": "4160"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3318/laugh/0031.wav",
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-      "start_time": 30.404837613889555,
-      "speaker_id": "3318"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044541.json b/conversations/conv_044541.json
deleted file mode 100644
index 87fb048d84995220a39ab8ce235d53bf2de77819..0000000000000000000000000000000000000000
--- a/conversations/conv_044541.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.924244791597236,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4098-11547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11547.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "4098-11546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11546.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4098-11546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11546.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 83102
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171109.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.57814284914228,
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-      "utterance_id": "5727-47032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47032.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.857071881370494,
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-      "duration": 5.067172910226741,
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-      "overlap": false,
-      "utterance_id": "3289-171108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171108.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-    {
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-    {
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-      "speaker_id": "4098"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5727/laugh/0068.wav",
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-      "start_time": 24.750008607126077,
-      "speaker_id": "5727"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044546.json b/conversations/conv_044546.json
deleted file mode 100644
index f6c585629582523118eb6e89fe7d6ef70db858d0..0000000000000000000000000000000000000000
--- a/conversations/conv_044546.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_044550.json b/conversations/conv_044550.json
deleted file mode 100644
index e4c6b6a489fe6eaa57fa5c841ed6af560fa31867..0000000000000000000000000000000000000000
--- a/conversations/conv_044550.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2790-142824.flac |",
-      "real_speaker_id": "2790",
-      "position_frames": 0
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-      "real_speaker_id": "2775",
-      "position_frames": 0
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-      "real_speaker_id": "8527",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-160958.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_044557.json b/conversations/conv_044557.json
deleted file mode 100644
index 79a6aa6db57f0e3c376ef5254f7fa64aa497bfce..0000000000000000000000000000000000000000
--- a/conversations/conv_044557.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_044561.json b/conversations/conv_044561.json
deleted file mode 100644
index a1363471d2d78a9565e984fd794883ac40f9c474..0000000000000000000000000000000000000000
--- a/conversations/conv_044561.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "duration": 1.24,
-      "start_time": 29.668014008779156,
-      "speaker_id": "6951"
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
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-      "speaker_id": "6951"
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "7138"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044577.json b/conversations/conv_044577.json
deleted file mode 100644
index 3784aa83e1bea787426b1fc399e28ffe6b3502a6..0000000000000000000000000000000000000000
--- a/conversations/conv_044577.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.793344152013751,
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-      "utterance_id": "5104-33406",
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-      "real_speaker_id": "5104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.456465268572048,
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-      "overlap": true,
-      "utterance_id": "5456-58161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5456-58161.flac |",
-      "real_speaker_id": "5456",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.47998637221865,
-      "end_time": 19.207683741238263,
-      "duration": 4.727697369019611,
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-      "overlap": false,
-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 52832
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.497016369890353,
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-      "utterance_id": "5456-24741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5456-24741.flac |",
-      "real_speaker_id": "5456",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.236470600201862,
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-      "duration": 5.763529399798138,
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-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_044582.json b/conversations/conv_044582.json
deleted file mode 100644
index 3c57952753fb91c9ac4fb3c153e483f52de4f860..0000000000000000000000000000000000000000
--- a/conversations/conv_044582.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-291969.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "957-130588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 99286
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.45858995022453,
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-      "duration": 3.5414100497754717,
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-      "duration_frames": 56662,
-      "overlap": false,
-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-      "speaker_id": "6620"
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-}
\ No newline at end of file
diff --git a/conversations/conv_044594.json b/conversations/conv_044594.json
deleted file mode 100644
index 405951c9ccaa3af3d7814800b64f0b3b3be36d26..0000000000000000000000000000000000000000
--- a/conversations/conv_044594.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
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-      "utterance_id": "4719-25765",
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-      "real_speaker_id": "4719",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.775292588168877,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-284207.flac |",
-      "real_speaker_id": "8321",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "duration": 1.6373409960871825,
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-      "utterance_id": "5459-41260",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_044595.json b/conversations/conv_044595.json
deleted file mode 100644
index 6ddb0f142171f7afb8c32a926f7db807264faab6..0000000000000000000000000000000000000000
--- a/conversations/conv_044595.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156087.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-245691.flac |",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044598.json b/conversations/conv_044598.json
deleted file mode 100644
index f85e2f1181ae49453eb96e1239fa11c1e741603c..0000000000000000000000000000000000000000
--- a/conversations/conv_044598.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.14953366258703,
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-      "overlap": false,
-      "utterance_id": "7826-284518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-284518.flac |",
-      "real_speaker_id": "7826",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.176728039914565,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121068.flac |",
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-      "position_frames": 0
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-      "utterance_id": "7826-284518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-284518.flac |",
-      "real_speaker_id": "7826",
-      "position_frames": 66392
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "duration_frames": 74693,
-      "overlap": false,
-      "utterance_id": "55-121069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.101153736974155,
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-      "overlap": true,
-      "utterance_id": "2673-162130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-162130.flac |",
-      "real_speaker_id": "2673",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.268597317052603,
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-      "duration": 4.731402682947397,
-      "start_frame": 436297,
-      "duration_frames": 75702,
-      "overlap": false,
-      "utterance_id": "7826-284518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-284518.flac |",
-      "real_speaker_id": "7826",
-      "position_frames": 158573
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_044604.json b/conversations/conv_044604.json
deleted file mode 100644
index d931707dc457520484967d4a85284e3612505649..0000000000000000000000000000000000000000
--- a/conversations/conv_044604.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
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-      "real_speaker_id": "5246",
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-      "start_time": 18.82046713470968,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5911-48574.flac |",
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-      "utterance_id": "3347-134420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3347-134420.flac |",
-      "real_speaker_id": "3347",
-      "position_frames": 0
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-      "utterance_id": "5246-30101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-30101.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_044605.json b/conversations/conv_044605.json
deleted file mode 100644
index 2126c8c9c9cabfdce3d95ce2c788126aef3ec914..0000000000000000000000000000000000000000
--- a/conversations/conv_044605.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "real_speaker_id": "1569",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "1569",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_044609.json b/conversations/conv_044609.json
deleted file mode 100644
index 0c2242baaa424c5ac49aa44902683e81a535f4e9..0000000000000000000000000000000000000000
--- a/conversations/conv_044609.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.14854224627252,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_044613.json b/conversations/conv_044613.json
deleted file mode 100644
index 04dee909f3fc399617d6e83de0715bb8459e5748..0000000000000000000000000000000000000000
--- a/conversations/conv_044613.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.913065424015606,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
-      "real_speaker_id": "8476",
-      "position_frames": 0
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-      "utterance_id": "3346-7599",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143262.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 98289
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "position_frames": 94186
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\ No newline at end of file
diff --git a/conversations/conv_044625.json b/conversations/conv_044625.json
deleted file mode 100644
index 45cff308ac43969da1268da535410a253beb77d5..0000000000000000000000000000000000000000
--- a/conversations/conv_044625.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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\ No newline at end of file
diff --git a/conversations/conv_044629.json b/conversations/conv_044629.json
deleted file mode 100644
index a91229528e9d5bad7c32f7f0474634c32730e20f..0000000000000000000000000000000000000000
--- a/conversations/conv_044629.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 82910
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_044633.json b/conversations/conv_044633.json
deleted file mode 100644
index 469a82ba7b157ea88060821c591f4980faba9271..0000000000000000000000000000000000000000
--- a/conversations/conv_044633.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
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-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 130455
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_2.wav",
-      "duration": 0.09541950113378685,
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3400/cough/0049.wav",
-      "duration": 0.7886547783753675,
-      "start_time": 0,
-      "speaker_id": "3400"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1825/laugh/0102.wav",
-      "duration": 0.8066968684920304,
-      "start_time": 3.909903503411835,
-      "speaker_id": "1825"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1825/cough/0003.wav",
-      "duration": 0.3661277007279596,
-      "start_time": 4.294306265208221,
-      "speaker_id": "1825"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044638.json b/conversations/conv_044638.json
deleted file mode 100644
index 71bf30a724a5a2cb37a46450fb67a2708ed2d5b6..0000000000000000000000000000000000000000
--- a/conversations/conv_044638.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.402610266838754,
-      "duration": 5.402610266838754,
-      "start_frame": 0,
-      "duration_frames": 86441,
-      "overlap": false,
-      "utterance_id": "1290-135762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.40967841091484,
-      "end_time": 9.816242611328398,
-      "duration": 4.406564200413557,
-      "start_frame": 86554,
-      "duration_frames": 70505,
-      "overlap": true,
-      "utterance_id": "4078-7619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.70374044862532,
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-      "duration_frames": 77798,
-      "overlap": false,
-      "utterance_id": "779-123710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123710.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.121709578153226,
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-      "overlap": false,
-      "utterance_id": "1290-135762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 86441
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.01911665691899,
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-      "duration": 4.877037167236121,
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-      "overlap": false,
-      "utterance_id": "779-123708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123708.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.436829933663745,
-      "end_time": 30.921456251758837,
-      "duration": 5.484626318095093,
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-      "duration_frames": 87754,
-      "overlap": false,
-      "utterance_id": "4078-7619",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4078-7619.flac |",
-      "real_speaker_id": "4078",
-      "position_frames": 70505
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.27983492020862,
-      "end_time": 32.0,
-      "duration": 0.7201650797913786,
-      "start_frame": 500477,
-      "duration_frames": 11522,
-      "overlap": false,
-      "utterance_id": "779-123709",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123709.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 22.997738692184758,
-      "start_time": 0.7083270585692979
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
-      "duration": 3.429487761224928,
-      "start_time": 12.986722412555737
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1290/cough/0086.wav",
-      "duration": 1.1,
-      "start_time": 5.600582405504134,
-      "speaker_id": "1290"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4078/laugh/0037.wav",
-      "duration": 0.7930829953576831,
-      "start_time": 4.504662028209036,
-      "speaker_id": "4078"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1290/laugh/0009.wav",
-      "duration": 1.78,
-      "start_time": 17.344833790955263,
-      "speaker_id": "1290"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/779/laugh/0035.wav",
-      "duration": 0.7416575784774504,
-      "start_time": 20.872998296915956,
-      "speaker_id": "779"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/779/laugh/0020.wav",
-      "duration": 0.9117094111135229,
-      "start_time": 31.088290588886476,
-      "speaker_id": "779"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044643.json b/conversations/conv_044643.json
deleted file mode 100644
index 064b8f5cdeb34e52e5748ed254b5217ea8739dfb..0000000000000000000000000000000000000000
--- a/conversations/conv_044643.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.123967952768805,
-      "duration": 5.123967952768805,
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-      "overlap": false,
-      "utterance_id": "7139-75362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75362.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.124415412885135,
-      "end_time": 10.822079005726938,
-      "duration": 4.697663592841802,
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-      "overlap": false,
-      "utterance_id": "4057-11254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-11254.flac |",
-      "real_speaker_id": "4057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.414354101676288,
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-      "overlap": false,
-      "utterance_id": "8875-293959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8875-293959.flac |",
-      "real_speaker_id": "8875",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.02398590984737,
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-      "duration_frames": 93600,
-      "overlap": false,
-      "utterance_id": "4057-12085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-12085.flac |",
-      "real_speaker_id": "4057",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.004638591302616,
-      "end_time": 26.103535509512078,
-      "duration": 4.098896918209462,
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-      "duration_frames": 65582,
-      "overlap": false,
-      "utterance_id": "8875-293959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8875-293959.flac |",
-      "real_speaker_id": "8875",
-      "position_frames": 61798
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.342151986570578,
-      "end_time": 31.031449891520897,
-      "duration": 4.689297904950318,
-      "start_frame": 421474,
-      "duration_frames": 75028,
-      "overlap": false,
-      "utterance_id": "7139-88748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-88748.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.25075280947042,
-      "end_time": 32.0,
-      "duration": 0.7492471905295801,
-      "start_frame": 500012,
-      "duration_frames": 11987,
-      "overlap": false,
-      "utterance_id": "4057-12085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4057-12085.flac |",
-      "real_speaker_id": "4057",
-      "position_frames": 93600
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 10.318285531141454,
-      "start_time": 14.166622277462524
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
-      "duration": 0.14183673469387756,
-      "start_time": 23.019556821003768
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
-      "duration": 4.267333710629192,
-      "start_time": 13.946579201745168
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4057/laugh/0101.wav",
-      "duration": 1.054287091308062,
-      "start_time": 14.836621965697034,
-      "speaker_id": "4057"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8875/cough/0075.wav",
-      "duration": 0.8944732390891033,
-      "start_time": 20.999175106232705,
-      "speaker_id": "8875"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044644.json b/conversations/conv_044644.json
deleted file mode 100644
index 6ea19baba624a8e5159127a5c148dafe7e2033e7..0000000000000000000000000000000000000000
--- a/conversations/conv_044644.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.023352643729188,
-      "duration": 5.023352643729188,
-      "start_frame": 0,
-      "duration_frames": 80373,
-      "overlap": false,
-      "utterance_id": "797-127182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.995055271495749,
-      "end_time": 11.310849225819936,
-      "duration": 5.315793954324186,
-      "start_frame": 95920,
-      "duration_frames": 85052,
-      "overlap": false,
-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.700492162806036,
-      "end_time": 14.869567053355436,
-      "duration": 3.1690748905494006,
-      "start_frame": 187207,
-      "duration_frames": 50705,
-      "overlap": false,
-      "utterance_id": "797-127182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 80373
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.66658719820222,
-      "end_time": 18.330706412896436,
-      "duration": 3.6641192146942165,
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-      "duration_frames": 58625,
-      "overlap": true,
-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.510929063207495,
-      "end_time": 22.734938441388806,
-      "duration": 3.224009378181311,
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-      "duration_frames": 51584,
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-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 85052
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.26274558999181,
-      "end_time": 28.68527592717534,
-      "duration": 4.422530337183532,
-      "start_frame": 388203,
-      "duration_frames": 70760,
-      "overlap": false,
-      "utterance_id": "797-127182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 131078
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.719676536344565,
-      "end_time": 32.0,
-      "duration": 2.280323463655435,
-      "start_frame": 475514,
-      "duration_frames": 36485,
-      "overlap": false,
-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 136636
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_15.wav",
-      "duration": 1.1194331065759637,
-      "start_time": 1.894637387629328
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
-      "duration": 0.236984126984127,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/797/laugh/0019.wav",
-      "duration": 0.7266771023767412,
-      "start_time": 5.075175581786429,
-      "speaker_id": "797"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8671/cough/0018.wav",
-      "duration": 1.0985558488312264,
-      "start_time": 4.7062388305484175,
-      "speaker_id": "8671"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7522/laugh/0028.wav",
-      "duration": 0.6708351009845912,
-      "start_time": 16.91719384343057,
-      "speaker_id": "7522"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7522/cough/0082.wav",
-      "duration": 0.86,
-      "start_time": 18.44454847372984,
-      "speaker_id": "7522"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044648.json b/conversations/conv_044648.json
deleted file mode 100644
index d3724e6194f64f06fabba8d24c610d2601983d2a..0000000000000000000000000000000000000000
--- a/conversations/conv_044648.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_044652.json b/conversations/conv_044652.json
deleted file mode 100644
index d9128faf1ae4e293675fb737fa12ffe059941a29..0000000000000000000000000000000000000000
--- a/conversations/conv_044652.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_044653.json b/conversations/conv_044653.json
deleted file mode 100644
index 465af8f6677860594b6724f1c0724dacc460014d..0000000000000000000000000000000000000000
--- a/conversations/conv_044653.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_044664.json b/conversations/conv_044664.json
deleted file mode 100644
index ae5e4619d34ccca7bba15177dea71ab60a66bae7..0000000000000000000000000000000000000000
--- a/conversations/conv_044664.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "position_frames": 0
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_044668.json b/conversations/conv_044668.json
deleted file mode 100644
index e297ca2303361fb043604f2b159e7ad31f45c11b..0000000000000000000000000000000000000000
--- a/conversations/conv_044668.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.609211607728747,
-      "duration": 3.609211607728747,
-      "start_frame": 0,
-      "duration_frames": 57747,
-      "overlap": false,
-      "utterance_id": "6637-69607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6637-69607.flac |",
-      "real_speaker_id": "6637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.217731088604638,
-      "end_time": 8.33514185942953,
-      "duration": 4.117410770824892,
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-      "duration_frames": 65878,
-      "overlap": false,
-      "utterance_id": "8587-295525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295525.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.603731437282162,
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-      "duration": 3.560102425496863,
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-      "overlap": true,
-      "utterance_id": "8422-258259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.17941702535537,
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-      "utterance_id": "8422-258258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258258.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 16.914172558195574,
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-      "utterance_id": "8587-295533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295533.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.821872342311032,
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-      "utterance_id": "8422-258259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 56961
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.629526367951073,
-      "end_time": 32.0,
-      "duration": 3.3704736320489275,
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-      "utterance_id": "8587-295524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295524.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_2.wav",
-      "duration": 1.0019274376417233,
-      "start_time": 1.088472006969026
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
-      "duration": 1.1969684258685187,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8422/laugh/0013.wav",
-      "duration": 1.5,
-      "start_time": 11.396685614093407,
-      "speaker_id": "8422"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044672.json b/conversations/conv_044672.json
deleted file mode 100644
index 700af0324f4257cec4e725648d489bbd4f40658e..0000000000000000000000000000000000000000
--- a/conversations/conv_044672.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7354-87667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.2890755447469475,
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-      "duration": 6.476189705252029,
-      "start_frame": 84625,
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-      "overlap": false,
-      "utterance_id": "8066-114256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-114256.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.322469869650241,
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-      "duration_frames": 90206,
-      "overlap": false,
-      "utterance_id": "6009-57646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57646.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.16587854652152,
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-      "utterance_id": "7354-87667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 76987
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.79507720120132,
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-      "utterance_id": "8066-290047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8066-290047.flac |",
-      "real_speaker_id": "8066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.360354057344352,
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-      "duration": 4.639645942655648,
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-      "utterance_id": "7354-87667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 135427
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6009/laugh/0140.wav",
-      "duration": 1.2,
-      "start_time": 12.59628262688839,
-      "speaker_id": "6009"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6009/cough/0061.wav",
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-    {
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-      "duration": 1.26,
-      "start_time": 28.692775333367255,
-      "speaker_id": "7354"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044679.json b/conversations/conv_044679.json
deleted file mode 100644
index 9db0255bf614af6c8719fd1d2582c1d3d721d7bf..0000000000000000000000000000000000000000
--- a/conversations/conv_044679.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5781-52137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52137.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "1931-156647",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1931-156647.flac |",
-      "real_speaker_id": "1931",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 62547,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52137.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 82224
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 61207
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.954287491317636,
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-      "duration_frames": 64731,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1931-156647.flac |",
-      "real_speaker_id": "1931",
-      "position_frames": 106302
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_044680.json b/conversations/conv_044680.json
deleted file mode 100644
index 9863118fd90c853d537a940cd02b07b218d928d4..0000000000000000000000000000000000000000
--- a/conversations/conv_044680.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.110690658633033,
-      "duration": 5.110690658633033,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.8778083698810555,
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-      "utterance_id": "4305-15448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 81771
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.36599883261881,
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-      "start_frame": 181855,
-      "duration_frames": 80510,
-      "overlap": true,
-      "utterance_id": "458-126305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126305.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8176-115046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8176-115046.flac |",
-      "real_speaker_id": "8176",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 177204
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "8176-115047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8176-115047.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_044687.json b/conversations/conv_044687.json
deleted file mode 100644
index 8cb59e25ac4688e8012b374858b5cb7a2239a04b..0000000000000000000000000000000000000000
--- a/conversations/conv_044687.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.436876399113192,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_044691.json b/conversations/conv_044691.json
deleted file mode 100644
index 87c1855c7557a28d4a3cad69e26d906c65ec9c02..0000000000000000000000000000000000000000
--- a/conversations/conv_044691.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132272.flac |",
-      "real_speaker_id": "764",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-64259.flac |",
-      "real_speaker_id": "6199",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132280.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_044696.json b/conversations/conv_044696.json
deleted file mode 100644
index 6858f986debfd2bd524d97fbff88e8eb7497841b..0000000000000000000000000000000000000000
--- a/conversations/conv_044696.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_044701.json b/conversations/conv_044701.json
deleted file mode 100644
index a36732de40dec4b493e5b51e09fdcbf6cb7d3279..0000000000000000000000000000000000000000
--- a/conversations/conv_044701.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-      "utterance_id": "3848-37389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3848-37389.flac |",
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-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 8.384851856321164,
-      "speaker_id": "4063"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3848/laugh/0021.wav",
-      "duration": 1.28,
-      "start_time": 16.554789581245927,
-      "speaker_id": "3848"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044706.json b/conversations/conv_044706.json
deleted file mode 100644
index fc2c35c559bb23a410e592e5f334f0d2995154fd..0000000000000000000000000000000000000000
--- a/conversations/conv_044706.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.24205165474747,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.004218399610014,
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-      "utterance_id": "8419-286667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-286667.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.311268166056834,
-      "end_time": 9.001122312370162,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100425.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 9.517915877354298,
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-      "utterance_id": "1154-129975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129975.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.102223340677893,
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-      "utterance_id": "7502-100426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100426.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.46990971179534,
-      "end_time": 25.30064351743415,
-      "duration": 4.830733805638812,
-      "start_frame": 327518,
-      "duration_frames": 77291,
-      "overlap": false,
-      "utterance_id": "8419-286676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-286676.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.494454418091305,
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-      "utterance_id": "1154-129976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-129976.flac |",
-      "real_speaker_id": "1154",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_1.wav",
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-    {
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-      "duration": 1.16,
-      "start_time": 19.301840121676797,
-      "speaker_id": "8419"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044716.json b/conversations/conv_044716.json
deleted file mode 100644
index e7338a38f58ca7b58343b4d5d41b811e03750ef4..0000000000000000000000000000000000000000
--- a/conversations/conv_044716.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3328-168638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-168638.flac |",
-      "real_speaker_id": "3328",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/273-129288.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-104647.flac |",
-      "real_speaker_id": "7640",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "3328-166436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-166436.flac |",
-      "real_speaker_id": "3328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.370320437293145,
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-      "overlap": false,
-      "utterance_id": "3328-168638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-168638.flac |",
-      "real_speaker_id": "3328",
-      "position_frames": 97742
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.55985881700126,
-      "end_time": 32.0,
-      "duration": 4.44014118299874,
-      "start_frame": 440957,
-      "duration_frames": 71042,
-      "overlap": false,
-      "utterance_id": "7640-102465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-102465.flac |",
-      "real_speaker_id": "7640",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "3328"
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-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 0.5704844615740043,
-      "start_time": 26.81456369520378,
-      "speaker_id": "7640"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044717.json b/conversations/conv_044717.json
deleted file mode 100644
index 45fc6e75b0816a11332004105a04ada5adcc04a0..0000000000000000000000000000000000000000
--- a/conversations/conv_044717.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "218-131206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
-      "real_speaker_id": "218",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-96095.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131205.flac |",
-      "real_speaker_id": "218",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-39672.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "218-131206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/218-131206.flac |",
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-      "position_frames": 74621
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/218/laugh/0074.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "218"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044721.json b/conversations/conv_044721.json
deleted file mode 100644
index 369f447621a7b72acf30bf66c75b632eca176a42..0000000000000000000000000000000000000000
--- a/conversations/conv_044721.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.61090337584711,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "end_time": 5.012129341227533,
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-      "utterance_id": "5039-1188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1188.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "3021-121438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121438.flac |",
-      "real_speaker_id": "3021",
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-    {
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-      "real_speaker_id": "6963",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1189.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_044737.json b/conversations/conv_044737.json
deleted file mode 100644
index 73276abff0ec61c40639cf50fe6f3f6a17adf495..0000000000000000000000000000000000000000
--- a/conversations/conv_044737.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1200-135043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135043.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.664227721083221,
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-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.208231004422554,
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-      "duration": 5.134503186739886,
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-      "utterance_id": "1636-130501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.064480713278943,
-      "end_time": 26.94418941941455,
-      "duration": 6.879708706135608,
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-      "overlap": false,
-      "utterance_id": "1200-135068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135068.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.220237856515848,
-      "end_time": 32.0,
-      "duration": 4.779762143484152,
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-      "utterance_id": "1200-135043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135043.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 94459
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1200/laugh/0053.wav",
-      "duration": 1.0,
-      "start_time": 6.165301382041188,
-      "speaker_id": "1200"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1636/laugh/0127.wav",
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-    {
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-      "duration": 1.04,
-      "start_time": 30.5789250428407,
-      "speaker_id": "1200"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044740.json b/conversations/conv_044740.json
deleted file mode 100644
index d3b7293938e7681aaa86143a1171b606cf21c665..0000000000000000000000000000000000000000
--- a/conversations/conv_044740.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.063055197629886,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6415-111615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
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-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142374.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 70903
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 52905
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.183584349892726,
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-      "utterance_id": "6415-111615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6415-111615.flac |",
-      "real_speaker_id": "6415",
-      "position_frames": 90070
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_044756.json b/conversations/conv_044756.json
deleted file mode 100644
index f8e00e779581a5733c3b1a93ee8b9ea378137bfb..0000000000000000000000000000000000000000
--- a/conversations/conv_044756.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188158.flac |",
-      "real_speaker_id": "4273",
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-      "utterance_id": "3686-171134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171134.flac |",
-      "real_speaker_id": "3686",
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044760.json b/conversations/conv_044760.json
deleted file mode 100644
index 9f9c3659f4a7a2f68411ca4bf46a22c97892694f..0000000000000000000000000000000000000000
--- a/conversations/conv_044760.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-      "utterance_id": "1779-142733",
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-    {
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-      "utterance_id": "728-348",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1765-143010.flac |",
-      "real_speaker_id": "1765",
-      "position_frames": 111653
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1779/cough/0056.wav",
-      "duration": 1.1090227413993512,
-      "start_time": 4.823237727590108,
-      "speaker_id": "1779"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/728/laugh/0061.wav",
-      "duration": 1.1746654814011466,
-      "start_time": 25.714870521207214,
-      "speaker_id": "728"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044776.json b/conversations/conv_044776.json
deleted file mode 100644
index cb39861aa22c5492944007815ef3ed53404040ee..0000000000000000000000000000000000000000
--- a/conversations/conv_044776.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.725070502749823,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.612564553811613,
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-      "overlap": false,
-      "utterance_id": "8410-278217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8410-278217.flac |",
-      "real_speaker_id": "8410",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.663461748149758,
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-      "utterance_id": "5565-40589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.06213938214023,
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-      "duration_frames": 53446,
-      "overlap": false,
-      "utterance_id": "3647-134419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-134419.flac |",
-      "real_speaker_id": "3647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.662855266226078,
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-      "utterance_id": "8410-278220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8410-278220.flac |",
-      "real_speaker_id": "8410",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.93567716045224,
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-      "duration_frames": 86701,
-      "overlap": false,
-      "utterance_id": "5565-40589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 54925
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.17261246097756,
-      "end_time": 27.014631983220934,
-      "duration": 3.842019522243372,
-      "start_frame": 370761,
-      "duration_frames": 61472,
-      "overlap": true,
-      "utterance_id": "8410-278217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8410-278217.flac |",
-      "real_speaker_id": "8410",
-      "position_frames": 73801
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.595472512976734,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-134419.flac |",
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-      "position_frames": 53446
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5565/laugh/0070.wav",
-      "duration": 1.269932296704182,
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-      "speaker_id": "5565"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044783.json b/conversations/conv_044783.json
deleted file mode 100644
index cffb95617bd6a7b0988e581b3908f1e69d83d9ce..0000000000000000000000000000000000000000
--- a/conversations/conv_044783.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "475-125002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125002.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.199939688561304,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124999.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.082227539129576,
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-      "overlap": false,
-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 69307
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.70695072647056,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125002.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 108500
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5567-22447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22447.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "cough",
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_044784.json b/conversations/conv_044784.json
deleted file mode 100644
index b1be42396702d24d007daac41855eb60b7d37135..0000000000000000000000000000000000000000
--- a/conversations/conv_044784.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8536-244442.flac |",
-      "real_speaker_id": "8536",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-127793.flac |",
-      "real_speaker_id": "366",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8536-244442.flac |",
-      "real_speaker_id": "8536",
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.166504317194388,
-      "end_time": 32.0,
-      "duration": 5.833495682805612,
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-      "overlap": false,
-      "utterance_id": "366-129285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-129285.flac |",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8536/laugh/0008.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044792.json b/conversations/conv_044792.json
deleted file mode 100644
index 7b0457afbf5cb26d4ac363fbd2801842f623641e..0000000000000000000000000000000000000000
--- a/conversations/conv_044792.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.44748289738039,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "2133-289460",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-289460.flac |",
-      "real_speaker_id": "2133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.47465137344172,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1765-143010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1765-143010.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 83586
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_3.wav",
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-      "speaker_id": "2133"
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-}
\ No newline at end of file
diff --git a/conversations/conv_044795.json b/conversations/conv_044795.json
deleted file mode 100644
index 2e76f2401797d85d0d717dee5582d114230512fa..0000000000000000000000000000000000000000
--- a/conversations/conv_044795.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "5606-54667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.92235271044092,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121130.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-121658.flac |",
-      "real_speaker_id": "98",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.780272682766562,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
-      "position_frames": 107106
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.829796091283754,
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-      "overlap": false,
-      "utterance_id": "70-121127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121127.flac |",
-      "real_speaker_id": "70",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.349703049440663,
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-      "duration": 2.650296950559337,
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-      "overlap": false,
-      "utterance_id": "98-121658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/98-121658.flac |",
-      "real_speaker_id": "98",
-      "position_frames": 62762
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
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-      "start_time": 12.162707238294894
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5606/cough/0073.wav",
-      "duration": 1.0187002917290113,
-      "start_time": 6.747213318615772,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5606/laugh/0107.wav",
-      "duration": 1.1398404712091175,
-      "start_time": 21.247372324661946,
-      "speaker_id": "5606"
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-}
\ No newline at end of file
diff --git a/conversations/conv_044799.json b/conversations/conv_044799.json
deleted file mode 100644
index 2617e11256b3bf3823339cca85fcd11937d69f1f..0000000000000000000000000000000000000000
--- a/conversations/conv_044799.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-5042.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274346.flac |",
-      "real_speaker_id": "8095",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.089797554661445,
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-      "utterance_id": "123-25081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-25081.flac |",
-      "real_speaker_id": "123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.964337536043576,
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-      "utterance_id": "8095-274348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8095-274348.flac |",
-      "real_speaker_id": "8095",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6358/cough/0029.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8095"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044803.json b/conversations/conv_044803.json
deleted file mode 100644
index 60b54fa701a6f900809b5ee5d06f5770ed4d348c..0000000000000000000000000000000000000000
--- a/conversations/conv_044803.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.19348278190151,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "speaker_id": 1,
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-      "utterance_id": "6670-112764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
-      "real_speaker_id": "6670",
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-    {
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-      "overlap": true,
-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-172165.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 55712
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 66608
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-172165.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 134856
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_044804.json b/conversations/conv_044804.json
deleted file mode 100644
index be77cc5ea09c7038be61d88f55021bdcb23be3e1..0000000000000000000000000000000000000000
--- a/conversations/conv_044804.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274378.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7522",
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-      "utterance_id": "8222-274380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274380.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 22.361911712070448,
-      "end_time": 26.416495984384337,
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-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 77235
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8222-274380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274380.flac |",
-      "real_speaker_id": "8222",
-      "position_frames": 111988
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_3.wav",
-      "duration": 1.3247845804988663,
-      "start_time": 19.622524078852294
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
-      "duration": 0.27267573696145125,
-      "start_time": 3.099822914083711
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8222/laugh/0066.wav",
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-      "start_time": 13.142748157055202,
-      "speaker_id": "8222"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044808.json b/conversations/conv_044808.json
deleted file mode 100644
index b1d808c9f88a1ce71ec0ec9c365ebde46c9bd8aa..0000000000000000000000000000000000000000
--- a/conversations/conv_044808.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.16892085474561,
-      "duration": 4.16892085474561,
-      "start_frame": 0,
-      "duration_frames": 66702,
-      "overlap": false,
-      "utterance_id": "8012-273138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273138.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.738424463420975,
-      "end_time": 9.266764261592531,
-      "duration": 4.528339798171555,
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-      "duration_frames": 72453,
-      "overlap": false,
-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.42292576888066,
-      "end_time": 15.748655517174125,
-      "duration": 6.325729748293465,
-      "start_frame": 150766,
-      "duration_frames": 101211,
-      "overlap": false,
-      "utterance_id": "3003-14274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-14274.flac |",
-      "real_speaker_id": "3003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.059323239470338,
-      "end_time": 21.810379715745878,
-      "duration": 5.751056476275539,
-      "start_frame": 256949,
-      "duration_frames": 92016,
-      "overlap": false,
-      "utterance_id": "8012-273154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.20842898456427,
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-      "overlap": false,
-      "utterance_id": "625-132112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.952010006498735,
-      "end_time": 32.0,
-      "duration": 3.0479899935012646,
-      "start_frame": 463232,
-      "duration_frames": 48767,
-      "overlap": false,
-      "utterance_id": "8012-273138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273138.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 66702
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
-      "duration": 2.463482836298584,
-      "start_time": 21.71401771566246
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_044812.json b/conversations/conv_044812.json
deleted file mode 100644
index 9fd6a595fb1a761f191e695190298e97776762f7..0000000000000000000000000000000000000000
--- a/conversations/conv_044812.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.023220205529517,
-      "duration": 5.023220205529517,
-      "start_frame": 0,
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-249866.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 80371
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.416474400154804,
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-      "overlap": false,
-      "utterance_id": "8631-249866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-249866.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 88579
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.551162171066796,
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-      "duration": 4.448837828933204,
-      "start_frame": 440818,
-      "duration_frames": 71181,
-      "overlap": false,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 167549
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6875/laugh/0057.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044815.json b/conversations/conv_044815.json
deleted file mode 100644
index 6df948007a2de73246f398d3296bbe26e5b09a0f..0000000000000000000000000000000000000000
--- a/conversations/conv_044815.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.129549813625682,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-29108.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3148-4666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "4848-28247",
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-      "real_speaker_id": "4848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.221120103623726,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3148-4666.flac |",
-      "real_speaker_id": "3148",
-      "position_frames": 63365
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4848-29108",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3148/laugh/0012.wav",
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044824.json b/conversations/conv_044824.json
deleted file mode 100644
index cdfde7ea6633e6487d6245b4dd471ec30462d5e6..0000000000000000000000000000000000000000
--- a/conversations/conv_044824.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4013-11734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-11734.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7507",
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-    {
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-    {
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-    {
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_044828.json b/conversations/conv_044828.json
deleted file mode 100644
index 105e8be98adf0f7e312c1e3f95e14219ae7cde73..0000000000000000000000000000000000000000
--- a/conversations/conv_044828.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5914-52088.flac |",
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-      "real_speaker_id": "5767",
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-      "segment_id": "seg0006",
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-      "start_time": 30.80801235200566,
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\ No newline at end of file
diff --git a/conversations/conv_044829.json b/conversations/conv_044829.json
deleted file mode 100644
index 8c5a0986cb907492fc36480d86896a02f9c88bca..0000000000000000000000000000000000000000
--- a/conversations/conv_044829.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_044832.json b/conversations/conv_044832.json
deleted file mode 100644
index 7980562595055c567711edb5beebd8976764cd5d..0000000000000000000000000000000000000000
--- a/conversations/conv_044832.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_044842.json b/conversations/conv_044842.json
deleted file mode 100644
index 8ec5ef9b1e9c2b2b919f7565873a9220c392c955..0000000000000000000000000000000000000000
--- a/conversations/conv_044842.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6173-94652.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_044845.json b/conversations/conv_044845.json
deleted file mode 100644
index 8dde5849c7abe0c898747cc2401f00ff8c1c8e6c..0000000000000000000000000000000000000000
--- a/conversations/conv_044845.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_044849.json b/conversations/conv_044849.json
deleted file mode 100644
index a5c611569271b227889f2050beed8a0bac5a9813..0000000000000000000000000000000000000000
--- a/conversations/conv_044849.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "2552",
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\ No newline at end of file
diff --git a/conversations/conv_044853.json b/conversations/conv_044853.json
deleted file mode 100644
index fd171cdee27a51a851362a00871ede4ad5c76050..0000000000000000000000000000000000000000
--- a/conversations/conv_044853.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.33705024183433,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47238.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
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-      "real_speaker_id": "2021",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_044854.json b/conversations/conv_044854.json
deleted file mode 100644
index 0c13d65e36b1f8c3a7807d09688d374706297bf2..0000000000000000000000000000000000000000
--- a/conversations/conv_044854.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56837.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
-      "real_speaker_id": "5913",
-      "position_frames": 79554
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.74299274426346,
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-      "utterance_id": "5913-40745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5913-40745.flac |",
-      "real_speaker_id": "5913",
-      "position_frames": 128051
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.4702241572137,
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-      "utterance_id": "5984-56840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5984-56840.flac |",
-      "real_speaker_id": "5984",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5984/laugh/0040.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "5984"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5913/laugh/0130.wav",
-      "duration": 1.32,
-      "start_time": 27.571874933716877,
-      "speaker_id": "5913"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044865.json b/conversations/conv_044865.json
deleted file mode 100644
index 057b379e0e8a4c28b40f3d00b1b8cca11a1747b1..0000000000000000000000000000000000000000
--- a/conversations/conv_044865.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.2755382051179955,
-      "duration": 4.2755382051179955,
-      "start_frame": 0,
-      "duration_frames": 68408,
-      "overlap": false,
-      "utterance_id": "5321-8590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-8590.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.471067815730929,
-      "end_time": 9.30740061683544,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121413.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-8590.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 68408
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5321-53046.flac |",
-      "real_speaker_id": "5321",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26679.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 75531
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "real_speaker_id": "2238",
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-  "background_events": [],
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044869.json b/conversations/conv_044869.json
deleted file mode 100644
index aa0aa323f0a468ef91a3654b559f3e4a3c8f9e94..0000000000000000000000000000000000000000
--- a/conversations/conv_044869.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2229-152842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152842.flac |",
-      "real_speaker_id": "2229",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129061.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2229-152864.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "6818-68772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "669-129061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129061.flac |",
-      "real_speaker_id": "669",
-      "position_frames": 52960
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "start_time": 0,
-      "speaker_id": "2229"
-    },
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-      "duration": 1.24,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6818/laugh/0031.wav",
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-      "start_time": 26.628908830489763,
-      "speaker_id": "6818"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044873.json b/conversations/conv_044873.json
deleted file mode 100644
index ceb01a3ee37e3cc65aa7542458f44cb707a4f47f..0000000000000000000000000000000000000000
--- a/conversations/conv_044873.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "2975-151995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2975-151995.flac |",
-      "real_speaker_id": "2975",
-      "position_frames": 0
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-    {
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-      "utterance_id": "5181-2490",
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5181/laugh/0070.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2975/laugh/0127.wav",
-      "duration": 1.4298801115311603,
-      "start_time": 19.08550856911623,
-      "speaker_id": "2975"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5181/laugh/0039.wav",
-      "duration": 0.6353269777266999,
-      "start_time": 23.27360345855652,
-      "speaker_id": "5181"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044886.json b/conversations/conv_044886.json
deleted file mode 100644
index 63ee402f5cbe68475ec22f24e84e8c46b339232e..0000000000000000000000000000000000000000
--- a/conversations/conv_044886.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.35901933988711,
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-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.637836165864783,
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-      "duration": 5.106732667962094,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-69032.flac |",
-      "real_speaker_id": "4191",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.26745413160533,
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-      "utterance_id": "8050-110238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8050-110238.flac |",
-      "real_speaker_id": "8050",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.51259813271594,
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-      "duration": 3.388879440671905,
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-      "duration_frames": 54222,
-      "overlap": true,
-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 85744
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.219493557140403,
-      "end_time": 25.1401182174788,
-      "duration": 4.9206246603383965,
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-      "duration_frames": 78729,
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-      "utterance_id": "4191-69032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-69032.flac |",
-      "real_speaker_id": "4191",
-      "position_frames": 81707
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.914409108078424,
-      "end_time": 29.07404834166528,
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-      "duration_frames": 66554,
-      "overlap": true,
-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 139966
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.44493051543438,
-      "end_time": 32.0,
-      "duration": 1.555069484565621,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-69032.flac |",
-      "real_speaker_id": "4191",
-      "position_frames": 160436
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2577/laugh/0107.wav",
-      "duration": 1.4,
-      "start_time": 0,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8050/cough/0096.wav",
-      "duration": 1.0,
-      "start_time": 16.302189269165055,
-      "speaker_id": "8050"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044890.json b/conversations/conv_044890.json
deleted file mode 100644
index 4e29c6be08b67a32aec9e668a6b250d399788c21..0000000000000000000000000000000000000000
--- a/conversations/conv_044890.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8786-276735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276735.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 0
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-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
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-      "overlap": false,
-      "utterance_id": "8786-276749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276749.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 89447
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.436709250420613,
-      "end_time": 27.699387579876525,
-      "duration": 4.2626783294559125,
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-      "utterance_id": "4592-22178",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22178.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.625325776497657,
-      "end_time": 32.0,
-      "duration": 3.3746742235023426,
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-      "utterance_id": "8786-276749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276749.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 67387
-    }
-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8786/laugh/0035.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
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-      "speaker_id": "8786"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044891.json b/conversations/conv_044891.json
deleted file mode 100644
index 2e22c82e981becbcbc65a6b4b0e9eb691eb3fbe2..0000000000000000000000000000000000000000
--- a/conversations/conv_044891.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "8753-297962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297962.flac |",
-      "real_speaker_id": "8753",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297962.flac |",
-      "real_speaker_id": "8753",
-      "position_frames": 51710
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297946.flac |",
-      "real_speaker_id": "8753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.222452505083083,
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-      "duration": 4.7775474949169165,
-      "start_frame": 435559,
-      "duration_frames": 76440,
-      "overlap": false,
-      "utterance_id": "8753-297948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297948.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_5.wav",
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044900.json b/conversations/conv_044900.json
deleted file mode 100644
index 82f3f873227dc24d4ed8a5757e83f3e97e025ec2..0000000000000000000000000000000000000000
--- a/conversations/conv_044900.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3168-173565",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173565.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-      "event_class": "Dog",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7737/laugh/0123.wav",
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-      "speaker_id": "7737"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_044907.json b/conversations/conv_044907.json
deleted file mode 100644
index 928f270b34c2cc83b89c29fc76fe67c6824ecbdd..0000000000000000000000000000000000000000
--- a/conversations/conv_044907.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7495-252342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-252342.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.411364391716674,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7299-88365.flac |",
-      "real_speaker_id": "7299",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.154563777524825,
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-      "overlap": false,
-      "utterance_id": "783-126739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.615093188869505,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7299-88365.flac |",
-      "real_speaker_id": "7299",
-      "position_frames": 55922
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.786106942618172,
-      "end_time": 27.618565922950104,
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-      "duration_frames": 93319,
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-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.761637357550857,
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-      "utterance_id": "783-126739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 56296
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_044911.json b/conversations/conv_044911.json
deleted file mode 100644
index b9f256ed3dd3aa18c11a62435df31013d255ae41..0000000000000000000000000000000000000000
--- a/conversations/conv_044911.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.04833224670963,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "8075-279233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279233.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
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-      "real_speaker_id": "8075",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "7837-109174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109174.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.083163721131577,
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-      "utterance_id": "1633-180292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-180292.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.510156829642735,
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-      "duration_frames": 40610,
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-      "utterance_id": "8075-279233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279233.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 70143
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.12,
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-      "speaker_id": "1633"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044916.json b/conversations/conv_044916.json
deleted file mode 100644
index 9e9f39462dc41f9f6239f47564cbbb0fa0b2319c..0000000000000000000000000000000000000000
--- a/conversations/conv_044916.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5714285714285714,
-  "segments": [
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-      "utterance_id": "7777-106367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106367.flac |",
-      "real_speaker_id": "7777",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-128226.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135654.flac |",
-      "real_speaker_id": "1392",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
-      "position_frames": 135822
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "1392-135659",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044920.json b/conversations/conv_044920.json
deleted file mode 100644
index f51a176890097de0887ecc7acc29d9c95c9a82ea..0000000000000000000000000000000000000000
--- a/conversations/conv_044920.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41606.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "3923-174992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-174992.flac |",
-      "real_speaker_id": "3923",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6418-39653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39653.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 199556
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6418/laugh/0168.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3923/cough/0045.wav",
-      "duration": 1.2156922550961329,
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-      "speaker_id": "3923"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6418/cough/0100.wav",
-      "duration": 1.110024873066072,
-      "start_time": 30.227529104685388,
-      "speaker_id": "6418"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044936.json b/conversations/conv_044936.json
deleted file mode 100644
index 5d36efae1c2ea8c64724086570b9372ad54a2be5..0000000000000000000000000000000000000000
--- a/conversations/conv_044936.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.956121828872722,
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-      "overlap": false,
-      "utterance_id": "5136-53512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-53512.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.0489752282616225,
-      "end_time": 8.880954392497456,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84333.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.573795645729405,
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-      "overlap": true,
-      "utterance_id": "2496-156089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156089.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.100571868412771,
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-      "utterance_id": "365-126328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126328.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.441882891648667,
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-      "overlap": false,
-      "utterance_id": "2496-156067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156067.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.0984755960377,
-      "end_time": 27.893363735610183,
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-      "start_frame": 385575,
-      "duration_frames": 60718,
-      "overlap": false,
-      "utterance_id": "365-84340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84340.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.319164960505873,
-      "end_time": 32.0,
-      "duration": 3.680835039494127,
-      "start_frame": 453106,
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-      "utterance_id": "5136-24633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-24633.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/365/laugh/0020.wav",
-      "duration": 1.48,
-      "start_time": 3.3011338222694744,
-      "speaker_id": "365"
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-    {
-      "event_class": "laugh",
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-      "start_time": 14.308155158302853,
-      "speaker_id": "2496"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044941.json b/conversations/conv_044941.json
deleted file mode 100644
index 8dc6ebd123faee54081e79b6ad8eba8b763295f6..0000000000000000000000000000000000000000
--- a/conversations/conv_044941.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.6188412096620457,
-      "duration": 3.6188412096620457,
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-      "overlap": false,
-      "utterance_id": "228-131212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.5734921952642695,
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-      "duration_frames": 95232,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-170982.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.363995332288074,
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-      "overlap": false,
-      "utterance_id": "228-133094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-133094.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.190714733296275,
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-      "utterance_id": "3340-170982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-170982.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 95232
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.3535613962827,
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-      "overlap": false,
-      "utterance_id": "3340-170982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-170982.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 192143
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.672199436270294,
-      "end_time": 32.0,
-      "duration": 4.327800563729706,
-      "start_frame": 442755,
-      "duration_frames": 69244,
-      "overlap": false,
-      "utterance_id": "1061-146197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-146197.flac |",
-      "real_speaker_id": "1061",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-      "start_time": 6.680297525261991
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/228/laugh/0131.wav",
-      "duration": 1.0,
-      "start_time": 1.1924631793613931,
-      "speaker_id": "228"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/228/cough/0001.wav",
-      "duration": 1.0,
-      "start_time": 0,
-      "speaker_id": "228"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3340/laugh/0028.wav",
-      "duration": 0.632745805894507,
-      "start_time": 15.416370941992351,
-      "speaker_id": "3340"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1061/laugh/0001.wav",
-      "duration": 0.9748552741470295,
-      "start_time": 28.94174824979592,
-      "speaker_id": "1061"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044946.json b/conversations/conv_044946.json
deleted file mode 100644
index 27b5f544a1c3acf2eaee92d19cb97359ea9f82ae..0000000000000000000000000000000000000000
--- a/conversations/conv_044946.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.8508731619741465,
-      "duration": 3.8508731619741465,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7498-99156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99156.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7398-98878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98878.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.368411231183607,
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-      "start_frame": 165894,
-      "duration_frames": 105946,
-      "overlap": false,
-      "utterance_id": "2762-160610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2762-160610.flac |",
-      "real_speaker_id": "2762",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.146366809815305,
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-      "overlap": false,
-      "utterance_id": "7498-99122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99122.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.900389804079015,
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-      "overlap": true,
-      "utterance_id": "7398-98876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98876.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 24.94240587878922,
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-      "utterance_id": "2762-142778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2762-142778.flac |",
-      "real_speaker_id": "2762",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.92080903934791,
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-      "duration": 1.0791909606520917,
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-      "utterance_id": "7498-99156",
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-      "position_frames": 61613
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2762/laugh/0125.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7498/laugh/0035.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7398/cough/0126.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2762/laugh/0004.wav",
-      "duration": 1.32,
-      "start_time": 26.448810613896715,
-      "speaker_id": "2762"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7498/laugh/0058.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7498/cough/0073.wav",
-      "duration": 1.3,
-      "start_time": 29.449985488359438,
-      "speaker_id": "7498"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044950.json b/conversations/conv_044950.json
deleted file mode 100644
index 141f1b67b745aa8db006078b8d28e0de3004b65f..0000000000000000000000000000000000000000
--- a/conversations/conv_044950.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8072-284670.flac |",
-      "real_speaker_id": "8072",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82337.flac |",
-      "real_speaker_id": "6923",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82337.flac |",
-      "real_speaker_id": "6923",
-      "position_frames": 153220
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_044957.json b/conversations/conv_044957.json
deleted file mode 100644
index 5ae6f53b3f3333b4525ca79f152ab7eca903dbc9..0000000000000000000000000000000000000000
--- a/conversations/conv_044957.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.1479924456357145,
-      "end_time": 10.31257716451214,
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-      "duration_frames": 82633,
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-      "utterance_id": "957-132568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 78252
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 153956
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.50799306700279,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
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-      "position_frames": 0
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "4044"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044960.json b/conversations/conv_044960.json
deleted file mode 100644
index 6d314cbc22bc64bbe57c17877955b8f38463effe..0000000000000000000000000000000000000000
--- a/conversations/conv_044960.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "6249-290631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-290631.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39676.flac |",
-      "real_speaker_id": "6333",
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-      "utterance_id": "6333-39671",
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-    {
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-      "real_speaker_id": "6333",
-      "position_frames": 49526
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "real_speaker_id": "1726",
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_044961.json b/conversations/conv_044961.json
deleted file mode 100644
index 4bebd4935ba13b06a41a85ba72475d22e90282fa..0000000000000000000000000000000000000000
--- a/conversations/conv_044961.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1403-135907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-135907.flac |",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_044977.json b/conversations/conv_044977.json
deleted file mode 100644
index c966b81bd9e43363a5ff8c65c7c4298493f89e79..0000000000000000000000000000000000000000
--- a/conversations/conv_044977.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3537-5704.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 24.381992693322257,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-14124.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.55808718268572,
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-      "utterance_id": "7837-109173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109173.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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\ No newline at end of file
diff --git a/conversations/conv_044982.json b/conversations/conv_044982.json
deleted file mode 100644
index 696ee0fb2c0be23af5012ad5937fd51952e906f1..0000000000000000000000000000000000000000
--- a/conversations/conv_044982.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-29340.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_044983.json b/conversations/conv_044983.json
deleted file mode 100644
index c67257603678c10fb2c6f9eed2707510694b3e1c..0000000000000000000000000000000000000000
--- a/conversations/conv_044983.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-}
\ No newline at end of file
diff --git a/conversations/conv_044994.json b/conversations/conv_044994.json
deleted file mode 100644
index 523154e26ca8b156445efe9b7cc9f5adb4a33172..0000000000000000000000000000000000000000
--- a/conversations/conv_044994.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100043.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
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-  "background_events": [
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-      "speaker_id": "7538"
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-}
\ No newline at end of file
diff --git a/conversations/conv_044998.json b/conversations/conv_044998.json
deleted file mode 100644
index 4f4df39ba9a818809d95a74aadb77c652ea37c85..0000000000000000000000000000000000000000
--- a/conversations/conv_044998.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.333914193378543,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "3060-163542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163542.flac |",
-      "real_speaker_id": "3060",
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-      "start_time": 6.405481889593899,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-10594.flac |",
-      "real_speaker_id": "1970",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
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-      "real_speaker_id": "6038",
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_045002.json b/conversations/conv_045002.json
deleted file mode 100644
index d4b2a55a962c28d5a178e8c979cbf36c097baea8..0000000000000000000000000000000000000000
--- a/conversations/conv_045002.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1341-9206.flac |",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_045014.json b/conversations/conv_045014.json
deleted file mode 100644
index c9b80719e698dfa237e53e432aac21701c46f95e..0000000000000000000000000000000000000000
--- a/conversations/conv_045014.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "731",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3272-167426",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "3272"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045018.json b/conversations/conv_045018.json
deleted file mode 100644
index 8b24c229fb7b4a5f632ac895bff707fcb6cbfde0..0000000000000000000000000000000000000000
--- a/conversations/conv_045018.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123521.flac |",
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-      "utterance_id": "4945-29090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4945-29090.flac |",
-      "real_speaker_id": "4945",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.415439022077777,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123498.flac |",
-      "real_speaker_id": "91",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.770668759044888,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4945-29090.flac |",
-      "real_speaker_id": "4945",
-      "position_frames": 81956
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.959596853289373,
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-      "utterance_id": "91-123511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123511.flac |",
-      "real_speaker_id": "91",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
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-  "paralinguistic_events": [
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-      "start_time": 6.472047305908453,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/91/laugh/0110.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/91/laugh/0129.wav",
-      "duration": 1.46,
-      "start_time": 26.451278177779294,
-      "speaker_id": "91"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/91/cough/0142.wav",
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-      "start_time": 31.653399474706784,
-      "speaker_id": "91"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045022.json b/conversations/conv_045022.json
deleted file mode 100644
index f0243909762e19d7a5aa29e8e6a2e4c69bb11212..0000000000000000000000000000000000000000
--- a/conversations/conv_045022.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.957561328643047,
-      "duration": 4.957561328643047,
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-      "overlap": false,
-      "utterance_id": "1789-137618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-137618.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.218223884500533,
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-      "utterance_id": "3867-173237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173237.flac |",
-      "real_speaker_id": "3867",
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.407102341151361,
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-      "start_frame": 198513,
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-      "overlap": false,
-      "utterance_id": "1789-142896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-142896.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.10630197833435,
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-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.758982383292924,
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-      "utterance_id": "3867-173236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173236.flac |",
-      "real_speaker_id": "3867",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.314412986781974,
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-      "duration": 2.6855870132180257,
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-      "utterance_id": "3867-173237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173237.flac |",
-      "real_speaker_id": "3867",
-      "position_frames": 102902
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "duration": 1.1,
-      "start_time": 0,
-      "speaker_id": "1789"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3867/laugh/0075.wav",
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-      "speaker_id": "3867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045029.json b/conversations/conv_045029.json
deleted file mode 100644
index c2b11a8e120d227a18a5f457a0de51e983f34272..0000000000000000000000000000000000000000
--- a/conversations/conv_045029.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
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-      "utterance_id": "3063-138652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138652.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 74088
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "7335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "position_frames": 142341
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-  "foreground_events": [
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-      "start_time": 27.115306284088362,
-      "speaker_id": "3063"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045034.json b/conversations/conv_045034.json
deleted file mode 100644
index 1bb997638911b9d0a6d771713dd7e3662f864c2a..0000000000000000000000000000000000000000
--- a/conversations/conv_045034.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.09250371630322,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "6538-81858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81858.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.183313173391829,
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-      "utterance_id": "6741-253270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6741-253270.flac |",
-      "real_speaker_id": "6741",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 86390,
-      "overlap": true,
-      "utterance_id": "3744-178594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3744-178594.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 100951
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_045038.json b/conversations/conv_045038.json
deleted file mode 100644
index a93f3a6ccfc67777621c6fa80e5cff1e1f146e45..0000000000000000000000000000000000000000
--- a/conversations/conv_045038.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
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-      "position_frames": 69461
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-    {
-      "segment_id": "seg0003",
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\ No newline at end of file
diff --git a/conversations/conv_045042.json b/conversations/conv_045042.json
deleted file mode 100644
index 36a0ef3e69b276669ad2fcb1cd87783a5eb4fd4f..0000000000000000000000000000000000000000
--- a/conversations/conv_045042.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8200",
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\ No newline at end of file
diff --git a/conversations/conv_045043.json b/conversations/conv_045043.json
deleted file mode 100644
index bae571457b3b344c31ea803e4299d8765c1cdf07..0000000000000000000000000000000000000000
--- a/conversations/conv_045043.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3595-176646.flac |",
-      "real_speaker_id": "3595",
-      "position_frames": 48149
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279771.flac |",
-      "real_speaker_id": "8242",
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\ No newline at end of file
diff --git a/conversations/conv_045052.json b/conversations/conv_045052.json
deleted file mode 100644
index d1c3cb8419904049deba35e9ab3aea9bbe792a41..0000000000000000000000000000000000000000
--- a/conversations/conv_045052.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "2893-139310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2893-139310.flac |",
-      "real_speaker_id": "2893",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-176278.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045055.json b/conversations/conv_045055.json
deleted file mode 100644
index 613bf6482f75a3bd422f8ef9b6a26caa6b253d54..0000000000000000000000000000000000000000
--- a/conversations/conv_045055.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.056290091349855,
-      "duration": 5.056290091349855,
-      "start_frame": 0,
-      "duration_frames": 80900,
-      "overlap": false,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.848120717871038,
-      "end_time": 10.006985765980374,
-      "duration": 4.1588650481093365,
-      "start_frame": 93569,
-      "duration_frames": 66541,
-      "overlap": false,
-      "utterance_id": "1271-136861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-136861.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.423650815425841,
-      "end_time": 14.650453744039826,
-      "duration": 4.226802928613986,
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-      "duration_frames": 67628,
-      "overlap": false,
-      "utterance_id": "1943-138033",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1943-138033.flac |",
-      "real_speaker_id": "1943",
-      "position_frames": 80900
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.77204202766147,
-      "end_time": 22.367284220889307,
-      "duration": 6.595242193227836,
-      "start_frame": 252352,
-      "duration_frames": 105523,
-      "overlap": false,
-      "utterance_id": "1271-136861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-136861.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 66541
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.079761899202154,
-      "end_time": 27.776606527197487,
-      "duration": 4.696844627995331,
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-      "duration_frames": 75149,
-      "overlap": false,
-      "utterance_id": "789-153211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153211.flac |",
-      "real_speaker_id": "789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.736111002644186,
-      "end_time": 32.0,
-      "duration": 3.2638889973558136,
-      "start_frame": 459777,
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-      "utterance_id": "1271-136861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-136861.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 172064
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
-      "duration": 3.8747766000138246,
-      "start_time": 13.26905919772623
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1943/cough/0026.wav",
-      "duration": 0.3101865641996752,
-      "start_time": 0.4981064457124284,
-      "speaker_id": "1943"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1271/laugh/0016.wav",
-      "duration": 1.3949016950177813,
-      "start_time": 10.261996411061679,
-      "speaker_id": "1271"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045059.json b/conversations/conv_045059.json
deleted file mode 100644
index eaa9556739abebed0afc21b328e1e7fc12dc56d5..0000000000000000000000000000000000000000
--- a/conversations/conv_045059.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.5802910765960405,
-      "duration": 6.5802910765960405,
-      "start_frame": 0,
-      "duration_frames": 105284,
-      "overlap": false,
-      "utterance_id": "5935-55927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-55927.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.22999794078872,
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-      "overlap": false,
-      "utterance_id": "561-126313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126313.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "561-126313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126313.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 68644
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.12641719544702,
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-      "start_frame": 290022,
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-      "overlap": false,
-      "utterance_id": "1913-143521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-143521.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.24680292740033,
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-      "utterance_id": "561-126313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126313.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 158453
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.970547502490483,
-      "end_time": 32.0,
-      "duration": 2.029452497509517,
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-      "duration_frames": 32471,
-      "overlap": false,
-      "utterance_id": "5935-43305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-43305.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5935/laugh/0101.wav",
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-      "speaker_id": "5935"
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 23.83981930763121,
-      "speaker_id": "1913"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/561/laugh/0009.wav",
-      "duration": 1.36,
-      "start_time": 22.878550680024393,
-      "speaker_id": "561"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045063.json b/conversations/conv_045063.json
deleted file mode 100644
index f7906c7e2dc87792fca63b2e8ba05df7b236e649..0000000000000000000000000000000000000000
--- a/conversations/conv_045063.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "731-366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-366.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.632229468967699,
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-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7839-109880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109880.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.698245168167965,
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-      "duration_frames": 65021,
-      "overlap": false,
-      "utterance_id": "731-365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-365.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7839-110063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-110063.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 81924
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/731/laugh/0101.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7475/laugh/0004.wav",
-      "duration": 0.92,
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-}
\ No newline at end of file
diff --git a/conversations/conv_045068.json b/conversations/conv_045068.json
deleted file mode 100644
index c60494cff2269cc0e8bf13ddf6c8a6a71d40c839..0000000000000000000000000000000000000000
--- a/conversations/conv_045068.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.180261534347499,
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-      "start_frame": 0,
-      "duration_frames": 98884,
-      "overlap": false,
-      "utterance_id": "8771-294523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.670590989861964,
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-      "utterance_id": "2270-156683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-156683.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "real_speaker_id": "8771",
-      "position_frames": 98884
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.690600518450015,
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-      "utterance_id": "2270-3547",
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-      "real_speaker_id": "2270",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-    {
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-      "event_class": "laugh",
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-      "duration": 1.12,
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-}
\ No newline at end of file
diff --git a/conversations/conv_045075.json b/conversations/conv_045075.json
deleted file mode 100644
index 15d9dff84090ed93ce42cc59a30b348c4ff8d6f4..0000000000000000000000000000000000000000
--- a/conversations/conv_045075.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.428535673988463,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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\ No newline at end of file
diff --git a/conversations/conv_045079.json b/conversations/conv_045079.json
deleted file mode 100644
index 0464faec7a2e7e5ff12e5a0d313752fe758c5464..0000000000000000000000000000000000000000
--- a/conversations/conv_045079.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.358714110240793,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
-      "real_speaker_id": "3825",
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\ No newline at end of file
diff --git a/conversations/conv_045080.json b/conversations/conv_045080.json
deleted file mode 100644
index debeb7dcc9af65cdc01840c8edde6410619a2732..0000000000000000000000000000000000000000
--- a/conversations/conv_045080.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "1743",
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-    {
-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045087.json b/conversations/conv_045087.json
deleted file mode 100644
index 8e09b8b8ec15af59524c215f96be111e9871fcd0..0000000000000000000000000000000000000000
--- a/conversations/conv_045087.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.71193811889176,
-      "end_time": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204974.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_3.wav",
-      "duration": 0.30428571428571427,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1413/laugh/0097.wav",
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-      "duration": 0.5013858380141621,
-      "start_time": 23.74058955050765,
-      "speaker_id": "1413"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045091.json b/conversations/conv_045091.json
deleted file mode 100644
index 1cba9954b42d0100af5b077b2df1871a93b5cd4b..0000000000000000000000000000000000000000
--- a/conversations/conv_045091.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.104249892314978,
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-      "overlap": false,
-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.27038681758779,
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-      "overlap": false,
-      "utterance_id": "1859-145700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145700.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
-    },
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-      "overlap": false,
-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 81667
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.878535007790706,
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-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.09866995607981,
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-      "utterance_id": "1859-145701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145701.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 61812
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "1859-145703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
-      "real_speaker_id": "1859",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-      "speaker_id": "4420"
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\ No newline at end of file
diff --git a/conversations/conv_045096.json b/conversations/conv_045096.json
deleted file mode 100644
index fef8ab531e7db1b92e42dd1f02e19d4d259accda..0000000000000000000000000000000000000000
--- a/conversations/conv_045096.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-122801.flac |",
-      "real_speaker_id": "207",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-28005.flac |",
-      "real_speaker_id": "4687",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-25901.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.70686982991584,
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-      "duration_frames": 65915,
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-      "utterance_id": "4687-28005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-28005.flac |",
-      "real_speaker_id": "4687",
-      "position_frames": 99736
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "4687-43337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4687-43337.flac |",
-      "real_speaker_id": "4687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_045106.json b/conversations/conv_045106.json
deleted file mode 100644
index 81cfb8b19711a912487b5304581eba41fb0a0474..0000000000000000000000000000000000000000
--- a/conversations/conv_045106.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-11691.flac |",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "5688-41232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-41232.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-    {
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-      "utterance_id": "5688-15787",
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-  "background_events": [
-    {
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_045107.json b/conversations/conv_045107.json
deleted file mode 100644
index 5c79badd30c72ad1a40cff2a709ce9b1f8e497af..0000000000000000000000000000000000000000
--- a/conversations/conv_045107.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.503171155574638,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
-      "real_speaker_id": "598",
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-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-      "utterance_id": "3032-19361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
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-    {
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-  "foreground_events": [
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-      "start_time": 23.08185181938164
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3032/laugh/0075.wav",
-      "duration": 1.68,
-      "start_time": 5.941763418057128,
-      "speaker_id": "3032"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3032/laugh/0039.wav",
-      "duration": 0.5049179760644353,
-      "start_time": 18.58171891882436,
-      "speaker_id": "3032"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045110.json b/conversations/conv_045110.json
deleted file mode 100644
index b901fb5178fdd1265020a58988b3f9a0c4f4db1e..0000000000000000000000000000000000000000
--- a/conversations/conv_045110.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.15518566286142,
-      "duration": 6.15518566286142,
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-      "overlap": false,
-      "utterance_id": "1066-4479",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-4479.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.5729922275078465,
-      "end_time": 13.017353847385108,
-      "duration": 6.444361619877261,
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-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281518.flac |",
-      "real_speaker_id": "8172",
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-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-5330.flac |",
-      "real_speaker_id": "1066",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.937834975233528,
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-      "utterance_id": "8172-281511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8172-281511.flac |",
-      "real_speaker_id": "8172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.686170455852555,
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-      "duration": 0.31382954414744546,
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-      "utterance_id": "278-127215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
-      "position_frames": 103109
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-    {
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-      "start_time": 30.79120936128998,
-      "speaker_id": "278"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045117.json b/conversations/conv_045117.json
deleted file mode 100644
index 681eec2dd1a767d8c269e82d86baed07efb4ab1f..0000000000000000000000000000000000000000
--- a/conversations/conv_045117.json
+++ /dev/null
@@ -1,180 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4059-3073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3073.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.256153643094567,
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-      "utterance_id": "4059-3069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3069.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 22.158775838512106,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 101160
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 178820
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.350053872762466,
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-      "duration": 0.6499461272375342,
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-      "utterance_id": "8058-99402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4059/laugh/0012.wav",
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-      "start_time": 3.0847032316031386,
-      "speaker_id": "4059"
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "8058"
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-    {
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-      "event_class": "laugh",
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-      "speaker_id": "8058"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045126.json b/conversations/conv_045126.json
deleted file mode 100644
index ac26806aa301beb92dbf402e6be60bc60f073a5c..0000000000000000000000000000000000000000
--- a/conversations/conv_045126.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.784374192111034,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "8534-216567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216567.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172359.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216567.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 79400
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "460",
-      "position_frames": 54139
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8534-216564.flac |",
-      "real_speaker_id": "8534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.73903071424286,
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-      "duration_frames": 64725,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7746-104992.flac |",
-      "real_speaker_id": "7746",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "7746"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045130.json b/conversations/conv_045130.json
deleted file mode 100644
index c0a11562a5582e28347dbdeb1094600c0ecafb2d..0000000000000000000000000000000000000000
--- a/conversations/conv_045130.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.595362242337821,
-      "duration": 3.595362242337821,
-      "start_frame": 0,
-      "duration_frames": 57525,
-      "overlap": false,
-      "utterance_id": "5333-5097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5333-5097.flac |",
-      "real_speaker_id": "5333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.8356092765368253,
-      "end_time": 9.442436334364203,
-      "duration": 5.606827057827378,
-      "start_frame": 61369,
-      "duration_frames": 89709,
-      "overlap": false,
-      "utterance_id": "5448-19209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19209.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.380157486659744,
-      "end_time": 15.442552988398727,
-      "duration": 5.062395501738982,
-      "start_frame": 166082,
-      "duration_frames": 80998,
-      "overlap": false,
-      "utterance_id": "5333-5097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5333-5097.flac |",
-      "real_speaker_id": "5333",
-      "position_frames": 57525
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.223632646044184,
-      "end_time": 21.28188290536232,
-      "duration": 5.058250259318136,
-      "start_frame": 259578,
-      "duration_frames": 80932,
-      "overlap": false,
-      "utterance_id": "112-123216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123216.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.93414835340417,
-      "end_time": 26.494566714511414,
-      "duration": 4.560418361107244,
-      "start_frame": 350946,
-      "duration_frames": 72966,
-      "overlap": true,
-      "utterance_id": "5333-37092",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5333-37092.flac |",
-      "real_speaker_id": "5333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.36788068538384,
-      "end_time": 32.0,
-      "duration": 4.632119314616158,
-      "start_frame": 437886,
-      "duration_frames": 74113,
-      "overlap": false,
-      "utterance_id": "5448-19208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
-      "duration": 0.6348979591836734,
-      "start_time": 3.205346458830036
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_045147.json b/conversations/conv_045147.json
deleted file mode 100644
index ce11dfb662df537539aaaade99dff40f5751e7b2..0000000000000000000000000000000000000000
--- a/conversations/conv_045147.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.926157818643958,
-      "duration": 5.926157818643958,
-      "start_frame": 0,
-      "duration_frames": 94818,
-      "overlap": false,
-      "utterance_id": "3340-169293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-169293.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.234438032444562,
-      "end_time": 11.749208183126225,
-      "duration": 5.514770150681663,
-      "start_frame": 99751,
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-      "overlap": false,
-      "utterance_id": "2952-408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2952-408.flac |",
-      "real_speaker_id": "2952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.394408335377822,
-      "end_time": 16.048508374801255,
-      "duration": 3.6541000394234335,
-      "start_frame": 198310,
-      "duration_frames": 58465,
-      "overlap": false,
-      "utterance_id": "3340-170982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-170982.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.673807401241326,
-      "end_time": 23.13493143932015,
-      "duration": 6.461124038078825,
-      "start_frame": 266780,
-      "duration_frames": 103377,
-      "overlap": false,
-      "utterance_id": "925-8157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/925-8157.flac |",
-      "real_speaker_id": "925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.984999023716373,
-      "end_time": 29.23819675855274,
-      "duration": 6.253197734836364,
-      "start_frame": 367759,
-      "duration_frames": 100051,
-      "overlap": true,
-      "utterance_id": "3340-170982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-170982.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 58465
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.33713198775674,
-      "end_time": 32.0,
-      "duration": 1.6628680122432584,
-      "start_frame": 485394,
-      "duration_frames": 26605,
-      "overlap": false,
-      "utterance_id": "3340-170982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3340-170982.flac |",
-      "real_speaker_id": "3340",
-      "position_frames": 158516
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 9.737239514035235
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
-      "duration": 4.839117493843794,
-      "start_time": 8.962490641227847
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
-      "duration": 0.9175736961451247,
-      "start_time": 20.84004693735261
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3340/laugh/0103.wav",
-      "duration": 1.4153842445370453,
-      "start_time": 1.5272020597677447,
-      "speaker_id": "3340"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3340/laugh/0101.wav",
-      "duration": 1.44,
-      "start_time": 10.786962144077432,
-      "speaker_id": "3340"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/925/cough/0021.wav",
-      "duration": 0.5283529696597682,
-      "start_time": 21.89510365294762,
-      "speaker_id": "925"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3340/laugh/0012.wav",
-      "duration": 1.3764839935616022,
-      "start_time": 29.379371903774157,
-      "speaker_id": "3340"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045151.json b/conversations/conv_045151.json
deleted file mode 100644
index 4d92a72e0c6ac4add13eae7bb14ffee0dca08e4b..0000000000000000000000000000000000000000
--- a/conversations/conv_045151.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.120579992860895,
-      "duration": 6.120579992860895,
-      "start_frame": 0,
-      "duration_frames": 97929,
-      "overlap": false,
-      "utterance_id": "3240-131232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131232.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.013682606727814,
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-      "duration": 3.2958603670831152,
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-      "overlap": false,
-      "utterance_id": "3650-168643",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168643.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.562933650734674,
-      "end_time": 15.192510961330337,
-      "duration": 4.629577310595662,
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-      "duration_frames": 74073,
-      "overlap": false,
-      "utterance_id": "5637-41170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41170.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.35755021184244,
-      "end_time": 22.486393917449856,
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-      "utterance_id": "3650-168636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168636.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.331337296872874,
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-      "duration": 3.780772457070186,
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-      "overlap": false,
-      "utterance_id": "3240-131231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.442798499485136,
-      "end_time": 32.0,
-      "duration": 4.557201500514864,
-      "start_frame": 439084,
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-      "overlap": false,
-      "utterance_id": "3650-168636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3650-168636.flac |",
-      "real_speaker_id": "3650",
-      "position_frames": 98061
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_11.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3240/cough/0067.wav",
-      "duration": 0.9614393748510153,
-      "start_time": 6.177028179212508,
-      "speaker_id": "3240"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3650/laugh/0085.wav",
-      "duration": 1.16,
-      "start_time": 10.589070158423137,
-      "speaker_id": "3650"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045167.json b/conversations/conv_045167.json
deleted file mode 100644
index 0dac7fb2df94737962d65d886eb4557301e0fdb2..0000000000000000000000000000000000000000
--- a/conversations/conv_045167.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "957-132537",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132537.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.463609310491974,
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-      "utterance_id": "5809-51162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51162.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.924113237946727,
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-      "utterance_id": "5809-51163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51163.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "957-130588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.652824534304997,
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-      "duration": 1.3471754656950026,
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-      "duration_frames": 21554,
-      "overlap": false,
-      "utterance_id": "296-141721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 79464
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "duration": 0.672108843537415,
-      "start_time": 19.844926571795686
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_045171.json b/conversations/conv_045171.json
deleted file mode 100644
index 78a4378f8a85311936c37cfda7328e32ab35d82c..0000000000000000000000000000000000000000
--- a/conversations/conv_045171.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.642393700431457,
-      "duration": 6.642393700431457,
-      "start_frame": 0,
-      "duration_frames": 106278,
-      "overlap": false,
-      "utterance_id": "5789-57158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-57158.flac |",
-      "real_speaker_id": "5789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5684",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121744.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-57158.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_045183.json b/conversations/conv_045183.json
deleted file mode 100644
index fd53361f9bcd966b9ade9fdfe0b47164a1f30a81..0000000000000000000000000000000000000000
--- a/conversations/conv_045183.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2588-11081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-11081.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.5731422821181305,
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-      "real_speaker_id": "8123",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74243.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "speaker_id": "2588"
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\ No newline at end of file
diff --git a/conversations/conv_045184.json b/conversations/conv_045184.json
deleted file mode 100644
index 427d77c68442e6d5ed131d7a4ef320530f5c7ac4..0000000000000000000000000000000000000000
--- a/conversations/conv_045184.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-      "position_frames": 66362
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045188.json b/conversations/conv_045188.json
deleted file mode 100644
index 4b34cdd413843c96639b30789202dd01dff2c19f..0000000000000000000000000000000000000000
--- a/conversations/conv_045188.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "duration": 1.04,
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-      "speaker_id": "6937"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045192.json b/conversations/conv_045192.json
deleted file mode 100644
index 17d1dda1a9399f30a4821307ad23c4ce81fc0473..0000000000000000000000000000000000000000
--- a/conversations/conv_045192.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7843-110055.flac |",
-      "real_speaker_id": "7843",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 5.066188830208075,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7843-110055.flac |",
-      "real_speaker_id": "7843",
-      "position_frames": 63969
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-      "speaker_id": 2,
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-      "duration_frames": 63145,
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-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.811776159107694,
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-      "duration": 6.16572154873793,
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-      "utterance_id": "7843-110055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7843-110055.flac |",
-      "real_speaker_id": "7843",
-      "position_frames": 163507
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.835691110496196,
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-      "duration": 3.164308889503804,
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-      "utterance_id": "7679-276769",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7679-276769.flac |",
-      "real_speaker_id": "7679",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_045195.json b/conversations/conv_045195.json
deleted file mode 100644
index a46088e429c753b5eb6cdd95595777dea535c1f7..0000000000000000000000000000000000000000
--- a/conversations/conv_045195.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "254-127705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-127705.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-27760.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-178366.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 55370
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3664-178355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-178355.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-27760.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 58178
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-  "background_events": [
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-    {
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-      "duration": 0.584890238454433,
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-    {
-      "event_class": "cough",
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-      "start_time": 31.38732850413404,
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-}
\ No newline at end of file
diff --git a/conversations/conv_045203.json b/conversations/conv_045203.json
deleted file mode 100644
index a03da185283d8c3e48663c58e64e853ecbc9015f..0000000000000000000000000000000000000000
--- a/conversations/conv_045203.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "233-155990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-155990.flac |",
-      "real_speaker_id": "233",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "2652-157644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "1773-145712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145712.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.707912369819837,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-155990.flac |",
-      "real_speaker_id": "233",
-      "position_frames": 57196
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1773-139602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 86098
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_15.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1773"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045204.json b/conversations/conv_045204.json
deleted file mode 100644
index c6a93d1a327527cff50827717392aa2c24711303..0000000000000000000000000000000000000000
--- a/conversations/conv_045204.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
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-    {
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-      "utterance_id": "207-143321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-143321.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "duration": 1.08,
-      "start_time": 4.716638051360431,
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-      "event_class": "cough",
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-      "speaker_id": "3307"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045212.json b/conversations/conv_045212.json
deleted file mode 100644
index e59957e9900ff2704dc75c95dd03c19831b162ab..0000000000000000000000000000000000000000
--- a/conversations/conv_045212.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.066316515480903,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.8170250995228105,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4813-248641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.166404362951754,
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-      "utterance_id": "5271-10982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-10982.flac |",
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-      "position_frames": 0
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-      "utterance_id": "4813-248641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 77072
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.572988610411493,
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-      "overlap": false,
-      "utterance_id": "5271-34505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34505.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.406079478792783,
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-      "utterance_id": "4813-248641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248641.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 158715
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.883684358005777,
-      "end_time": 31.066316515480903,
-      "duration": 4.182632157475126,
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-      "duration_frames": 66922,
-      "overlap": true,
-      "utterance_id": "5271-34506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34506.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5271/laugh/0056.wav",
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-      "speaker_id": "5271"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045215.json b/conversations/conv_045215.json
deleted file mode 100644
index 6e35b127d6534420162ea891168e22b83be0616f..0000000000000000000000000000000000000000
--- a/conversations/conv_045215.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4356-6506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6506.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 6.745308568562616,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6498.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6506.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 90390
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
-      "real_speaker_id": "7657",
-      "position_frames": 70172
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7657-104717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
-      "real_speaker_id": "7657",
-      "position_frames": 120896
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "7657"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045219.json b/conversations/conv_045219.json
deleted file mode 100644
index fc06d49f475cf23ef4eba9400914395d42bec59c..0000000000000000000000000000000000000000
--- a/conversations/conv_045219.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6272-70191",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70191.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 0
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-      "real_speaker_id": "6272",
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-      "real_speaker_id": "8444",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
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-      "duration": 0.88,
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-      "speaker_id": "8444"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045222.json b/conversations/conv_045222.json
deleted file mode 100644
index 9805e0b450da2b16e34b9f865c9a255f6a4ed217..0000000000000000000000000000000000000000
--- a/conversations/conv_045222.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
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-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 132727
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "7608"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045223.json b/conversations/conv_045223.json
deleted file mode 100644
index 43f26887e70e6ef2ba7b1efe74b2c6af75cc9f8b..0000000000000000000000000000000000000000
--- a/conversations/conv_045223.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.635480138628267,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1298-142236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-142236.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 4.098022976469661,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1513-140222.flac |",
-      "real_speaker_id": "1513",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1513-140222.flac |",
-      "real_speaker_id": "1513",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-1054.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.44662237828228,
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-      "duration_frames": 51021,
-      "overlap": false,
-      "utterance_id": "1298-1054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1298-1054.flac |",
-      "real_speaker_id": "1298",
-      "position_frames": 104031
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "duration": 1.56,
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-      "speaker_id": "1298"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045235.json b/conversations/conv_045235.json
deleted file mode 100644
index 5b0e80629091512e83a4e7fe9d8841b6d52c1022..0000000000000000000000000000000000000000
--- a/conversations/conv_045235.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-275138.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86964.flac |",
-      "real_speaker_id": "7226",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-275138.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 66400
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-      "duration_frames": 73000,
-      "overlap": false,
-      "utterance_id": "8414-284674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8414-284674.flac |",
-      "real_speaker_id": "8414",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.01158186190525,
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-      "duration": 3.988418138094751,
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-      "duration_frames": 63814,
-      "overlap": false,
-      "utterance_id": "8414-284675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8414-284675.flac |",
-      "real_speaker_id": "8414",
-      "position_frames": 71352
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6676/laugh/0015.wav",
-      "duration": 1.16,
-      "start_time": 17.255371384847454,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8414/laugh/0056.wav",
-      "duration": 1.24,
-      "start_time": 21.234408302587084,
-      "speaker_id": "8414"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045239.json b/conversations/conv_045239.json
deleted file mode 100644
index 194996b0dde4638b7fdf822278949a8667434c06..0000000000000000000000000000000000000000
--- a/conversations/conv_045239.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4216-10192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
-      "real_speaker_id": "4216",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32877.flac |",
-      "real_speaker_id": "5682",
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-      "real_speaker_id": "4216",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 23.41708879190078,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32877.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 51864
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.029144342237217,
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-      "duration": 0.9708556577627832,
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-      "utterance_id": "4813-248638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248638.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 89335
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4216/laugh/0069.wav",
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-    {
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-    {
-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "4813"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045242.json b/conversations/conv_045242.json
deleted file mode 100644
index 0b5cc85c6aadebbd9b64b8615c44c15e28887558..0000000000000000000000000000000000000000
--- a/conversations/conv_045242.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_045245.json b/conversations/conv_045245.json
deleted file mode 100644
index f89c0c98c4c6c0bd015add8493f6d4465f7f8142..0000000000000000000000000000000000000000
--- a/conversations/conv_045245.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_045253.json b/conversations/conv_045253.json
deleted file mode 100644
index 5f882f1c6a0a32d84e50869e74f5e9033b3a56aa..0000000000000000000000000000000000000000
--- a/conversations/conv_045253.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_045254.json b/conversations/conv_045254.json
deleted file mode 100644
index d9ffb1fafb1edf3b6e1783d2dc610789bcdf7a16..0000000000000000000000000000000000000000
--- a/conversations/conv_045254.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3781/cough/0075.wav",
-      "duration": 0.76,
-      "start_time": 22.78000464847897,
-      "speaker_id": "3781"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045258.json b/conversations/conv_045258.json
deleted file mode 100644
index f9beacbac8ba5013457beffe557a8c5abf4efb2d..0000000000000000000000000000000000000000
--- a/conversations/conv_045258.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.4078795731881892,
-      "duration": 3.4078795731881892,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2405-7360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-7360.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.9564313613246807,
-      "end_time": 8.832694305861455,
-      "duration": 4.876262944536775,
-      "start_frame": 63302,
-      "duration_frames": 78020,
-      "overlap": false,
-      "utterance_id": "8347-282412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-282412.flac |",
-      "real_speaker_id": "8347",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.435940657010576,
-      "end_time": 16.22643734906655,
-      "duration": 6.790496692055974,
-      "start_frame": 150975,
-      "duration_frames": 108647,
-      "overlap": true,
-      "utterance_id": "472-130755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-130755.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.76205648600259,
-      "end_time": 23.05320153602402,
-      "duration": 5.291145050021431,
-      "start_frame": 284192,
-      "duration_frames": 84658,
-      "overlap": false,
-      "utterance_id": "2405-148581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-148581.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.511167913005075,
-      "end_time": 28.42182063681594,
-      "duration": 4.910652723810865,
-      "start_frame": 376178,
-      "duration_frames": 78570,
-      "overlap": false,
-      "utterance_id": "8347-282412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8347-282412.flac |",
-      "real_speaker_id": "8347",
-      "position_frames": 78020
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.564127537124573,
-      "end_time": 32.0,
-      "duration": 3.4358724628754267,
-      "start_frame": 457026,
-      "duration_frames": 54973,
-      "overlap": false,
-      "utterance_id": "2405-148581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-148581.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 84658
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
-      "start_time": 6.160546022560878
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
-      "duration": 4.241563502377244,
-      "start_time": 21.845314454935146
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
-      "duration": 0.09736961451247166,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2405/laugh/0083.wav",
-      "duration": 1.12,
-      "start_time": 0.5187213925688409,
-      "speaker_id": "2405"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2405/cough/0017.wav",
-      "duration": 1.44,
-      "start_time": 1.919304591611517,
-      "speaker_id": "2405"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2405/laugh/0076.wav",
-      "duration": 0.9342774663302598,
-      "start_time": 16.531826455578933,
-      "speaker_id": "2405"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2405/laugh/0063.wav",
-      "duration": 0.7829036362595416,
-      "start_time": 30.243669027076315,
-      "speaker_id": "2405"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045262.json b/conversations/conv_045262.json
deleted file mode 100644
index 4647578d2840062bfbae84359edb5e5832798553..0000000000000000000000000000000000000000
--- a/conversations/conv_045262.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.164311423516284,
-      "duration": 6.164311423516284,
-      "start_frame": 0,
-      "duration_frames": 98628,
-      "overlap": false,
-      "utterance_id": "2042-148298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-148298.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.481306426400209,
-      "end_time": 10.10192590022908,
-      "duration": 3.62061947382887,
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-      "overlap": false,
-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.965521500027652,
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-      "overlap": false,
-      "utterance_id": "1088-129236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-129236.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.04852739681677,
-      "end_time": 21.096947088315897,
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-      "overlap": false,
-      "utterance_id": "2042-134780",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-134780.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.312301962348624,
-      "end_time": 27.080809310200834,
-      "duration": 5.768507347852211,
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-      "duration_frames": 92296,
-      "overlap": false,
-      "utterance_id": "1088-134318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134318.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.73420332844514,
-      "end_time": 32.0,
-      "duration": 4.26579667155486,
-      "start_frame": 443747,
-      "duration_frames": 68252,
-      "overlap": false,
-      "utterance_id": "2042-148298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-148298.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 98628
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 10.184110383310783,
-      "start_time": 20.79510220169418
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_6.wav",
-      "duration": 1.2077777777777778,
-      "start_time": 2.2267387377635797
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
-      "duration": 2.145578231292517,
-      "start_time": 27.4153963828325
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2042/laugh/0052.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "2042"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2042/cough/0023.wav",
-      "duration": 0.7645859119735918,
-      "start_time": 6.359498064400416,
-      "speaker_id": "2042"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1088/laugh/0094.wav",
-      "duration": 0.7856620679831461,
-      "start_time": 13.929751260921702,
-      "speaker_id": "1088"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2042/laugh/0013.wav",
-      "duration": 1.48,
-      "start_time": 21.154658957346864,
-      "speaker_id": "2042"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2042/laugh/0012.wav",
-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "2042"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045274.json b/conversations/conv_045274.json
deleted file mode 100644
index c52653c1ef412f5821a1b0ab444c9a46d55f4b6b..0000000000000000000000000000000000000000
--- a/conversations/conv_045274.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.416408227656593,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 88432,
-      "overlap": false,
-      "utterance_id": "2004-147173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147173.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-5341.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2004-147173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2004-147173.flac |",
-      "real_speaker_id": "2004",
-      "position_frames": 88432
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.13251104551577,
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-      "utterance_id": "2592-5341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-5341.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 83426
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.850217017980178,
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-      "utterance_id": "3143-160993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3143-160993.flac |",
-      "real_speaker_id": "3143",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.82220163229121,
-      "end_time": 31.416408227656593,
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-      "duration_frames": 57507,
-      "overlap": true,
-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "2004"
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "start_time": 16.45245146708271,
-      "speaker_id": "2004"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045278.json b/conversations/conv_045278.json
deleted file mode 100644
index 735e3842691e528f7ddab3aa138af37313b641c0..0000000000000000000000000000000000000000
--- a/conversations/conv_045278.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.805344945467983,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1060-134451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.855153487914011,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-12526.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 86377
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.575914733346053,
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-      "duration": 3.2294302121219305,
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-      "utterance_id": "4104-181012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-181012.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6157/laugh/0052.wav",
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-      "speaker_id": "6157"
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-      "event_class": "cough",
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-      "duration": 0.9975016963996712,
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-      "start_time": 17.972264104812034,
-      "speaker_id": "6157"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045279.json b/conversations/conv_045279.json
deleted file mode 100644
index fdbc41252e1ceb03103bfbb1a011457769dec842..0000000000000000000000000000000000000000
--- a/conversations/conv_045279.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5423307393819004,
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-      "utterance_id": "340-124368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 2.971944193734032,
-      "end_time": 6.713911324580841,
-      "duration": 3.7419671308468088,
-      "start_frame": 47551,
-      "duration_frames": 59871,
-      "overlap": true,
-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.63405582282351,
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-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "340-124368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 56677
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.47423940485786,
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-      "duration_frames": 88648,
-      "overlap": false,
-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 59871
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.7916777452147,
-      "end_time": 28.577104036184096,
-      "duration": 4.785426290969399,
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-      "duration_frames": 76566,
-      "overlap": false,
-      "utterance_id": "340-124368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 107770
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.325676495664315,
-      "end_time": 32.0,
-      "duration": 2.6743235043356854,
-      "start_frame": 469210,
-      "duration_frames": 42789,
-      "overlap": false,
-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 148519
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 4.873296444345547
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/340/laugh/0045.wav",
-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "340"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 0.5759491284773413,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 12.509164522619658,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.54,
-      "start_time": 28.871841546311728,
-      "speaker_id": "340"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045281.json b/conversations/conv_045281.json
deleted file mode 100644
index 035b9d8b193d470fa3131aca6030de681c7e1da3..0000000000000000000000000000000000000000
--- a/conversations/conv_045281.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "64-73712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-73712.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295462.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "64-76974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-76974.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.977860807747927,
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-      "overlap": false,
-      "utterance_id": "8770-295465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295465.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.201530656297393,
-      "end_time": 28.23881290162023,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/64-73712.flac |",
-      "real_speaker_id": "64",
-      "position_frames": 105742
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.963390592410434,
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-      "duration": 2.036609407589566,
-      "start_frame": 479414,
-      "duration_frames": 32585,
-      "overlap": false,
-      "utterance_id": "8770-295465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8770-295465.flac |",
-      "real_speaker_id": "8770",
-      "position_frames": 73726
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_0.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/64/laugh/0015.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "64"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8770/laugh/0097.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.0340027299619197,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.564710201798547,
-      "speaker_id": "8770"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045296.json b/conversations/conv_045296.json
deleted file mode 100644
index 34872d8025b0c6e9ad665fec2416e9424669e90c..0000000000000000000000000000000000000000
--- a/conversations/conv_045296.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.457363089529736,
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-      "overlap": false,
-      "utterance_id": "345-1119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1119.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7825-258978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7825-258978.flac |",
-      "real_speaker_id": "7825",
-      "position_frames": 0
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-    {
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-      "utterance_id": "345-1129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1129.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1119.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 71317
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.593958675888288,
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-      "utterance_id": "7825-258978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7825-258978.flac |",
-      "real_speaker_id": "7825",
-      "position_frames": 85593
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 3.8848301804630623,
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-      "duration_frames": 62157,
-      "overlap": false,
-      "utterance_id": "345-1129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1129.flac |",
-      "real_speaker_id": "345",
-      "position_frames": 63637
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/345/laugh/0037.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7825/laugh/0014.wav",
-      "duration": 1.08,
-      "start_time": 3.8406777227509794,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7825/laugh/0006.wav",
-      "duration": 1.44,
-      "start_time": 27.739029860129932,
-      "speaker_id": "7825"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045297.json b/conversations/conv_045297.json
deleted file mode 100644
index 39248590ca8091cda710ec3f01b33beb94a0fee9..0000000000000000000000000000000000000000
--- a/conversations/conv_045297.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration_frames": 78490,
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-      "utterance_id": "2496-156089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156089.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156083.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 71532
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
-      "duration": 2.5541043083900226,
-      "start_time": 9.358962982434186
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 1.1852524050829358,
-      "start_time": 24.8460961696129,
-      "speaker_id": "2496"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045300.json b/conversations/conv_045300.json
deleted file mode 100644
index 7bb1455ef82c119f4bba3bd199cfef63bc9663d1..0000000000000000000000000000000000000000
--- a/conversations/conv_045300.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.44284340737717,
-      "duration": 3.44284340737717,
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-      "duration_frames": 55085,
-      "overlap": false,
-      "utterance_id": "3070-166421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166421.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.15296694766187,
-      "end_time": 8.217052222074576,
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-      "duration_frames": 65025,
-      "overlap": false,
-      "utterance_id": "8506-287659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-287659.flac |",
-      "real_speaker_id": "8506",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166421.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 55085
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179154.flac |",
-      "real_speaker_id": "2159",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179156.flac |",
-      "real_speaker_id": "2159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.754206093974748,
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-      "duration": 2.245793906025252,
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-      "utterance_id": "8506-287660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8506-287660.flac |",
-      "real_speaker_id": "8506",
-      "position_frames": 70682
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045307.json b/conversations/conv_045307.json
deleted file mode 100644
index 4cc8c4c48203f068fa61dccbab42fd16b0a0ad61..0000000000000000000000000000000000000000
--- a/conversations/conv_045307.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8425-287387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-287387.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125002.flac |",
-      "real_speaker_id": "475",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124999.flac |",
-      "real_speaker_id": "475",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-125001.flac |",
-      "real_speaker_id": "475",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.467001886111998,
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-      "duration_frames": 49053,
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-      "utterance_id": "323-126408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "475-124994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124994.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045311.json b/conversations/conv_045311.json
deleted file mode 100644
index e7f814a505457b41d088f5ecc553aac769d36f0f..0000000000000000000000000000000000000000
--- a/conversations/conv_045311.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3109-165420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
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-      "position_frames": 48519
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_14.wav",
-      "duration": 1.5647845804988663,
-      "start_time": 19.809919095938437
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3109/laugh/0090.wav",
-      "duration": 0.5413255600054527,
-      "start_time": 0,
-      "speaker_id": "3109"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3109/laugh/0068.wav",
-      "duration": 1.1190185923411993,
-      "start_time": 15.809636260205579,
-      "speaker_id": "3109"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8118/laugh/0018.wav",
-      "duration": 1.0400655055687889,
-      "start_time": 21.47987906031976,
-      "speaker_id": "8118"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045316.json b/conversations/conv_045316.json
deleted file mode 100644
index 756e46bf2d00de64d5f53e0aa195e88e61f6128f..0000000000000000000000000000000000000000
--- a/conversations/conv_045316.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.779199494261157,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.477356099953605,
-      "duration": 6.477356099953605,
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-      "overlap": false,
-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.776345187461674,
-      "end_time": 11.663035613854387,
-      "duration": 4.886690426392712,
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-      "overlap": false,
-      "utterance_id": "7691-108625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-108625.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.905288373481008,
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-      "duration": 3.0817176718416146,
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-      "duration_frames": 49307,
-      "overlap": false,
-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.947305914174457,
-      "end_time": 20.404066038059064,
-      "duration": 4.4567601238846075,
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-      "duration_frames": 71308,
-      "overlap": false,
-      "utterance_id": "7837-109174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7837-109174.flac |",
-      "real_speaker_id": "7837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.99825208598144,
-      "end_time": 25.13420896853549,
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-      "start_frame": 335972,
-      "duration_frames": 66175,
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-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 103637
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.416647858891125,
-      "end_time": 31.779199494261157,
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-      "overlap": false,
-      "utterance_id": "7691-293948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-293948.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "speaker_id": "7691"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7555/laugh/0039.wav",
-      "duration": 0.5627235057208284,
-      "start_time": 12.759179759693168,
-      "speaker_id": "7555"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7555/cough/0077.wav",
-      "duration": 1.0146263460675884,
-      "start_time": 25.300037002777593,
-      "speaker_id": "7555"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7691/laugh/0042.wav",
-      "duration": 1.1312587500696523,
-      "start_time": 30.86874124993035,
-      "speaker_id": "7691"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045327.json b/conversations/conv_045327.json
deleted file mode 100644
index 633a38ac69038e9ee03e5cf444c974c0cb6035e1..0000000000000000000000000000000000000000
--- a/conversations/conv_045327.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1152-126550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126550.flac |",
-      "real_speaker_id": "1152",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.514350982695765,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.823348732424561,
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-      "overlap": false,
-      "utterance_id": "1373-135029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.92704867251049,
-      "end_time": 22.567306900255275,
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-      "duration_frames": 74244,
-      "overlap": true,
-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 74575
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.133145787715552,
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-      "utterance_id": "1373-135029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 102308
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.07205454153319,
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-      "utterance_id": "2068-146217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2068-146217.flac |",
-      "real_speaker_id": "2068",
-      "position_frames": 148819
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-      "duration": 1.28,
-      "start_time": 26.70936882831756,
-      "speaker_id": "2068"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045331.json b/conversations/conv_045331.json
deleted file mode 100644
index 9f37cad9a0ef4c0392248ba4018593c4e0122964..0000000000000000000000000000000000000000
--- a/conversations/conv_045331.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "6395-86708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-86708.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-86708.flac |",
-      "real_speaker_id": "6395",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1027-125140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125140.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "2297",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "duration_frames": 98759,
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-      "utterance_id": "1027-125147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1027-125147.flac |",
-      "real_speaker_id": "1027",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6395-84349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-84349.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045341.json b/conversations/conv_045341.json
deleted file mode 100644
index b9794c497f683c2d473fc01193a183dc0bd4cbd0..0000000000000000000000000000000000000000
--- a/conversations/conv_045341.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2045-158081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2045-158081.flac |",
-      "real_speaker_id": "2045",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "2361-137615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2361-137615.flac |",
-      "real_speaker_id": "2361",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1878-122453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122453.flac |",
-      "real_speaker_id": "1878",
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
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-      "speaker_id": "1878"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045346.json b/conversations/conv_045346.json
deleted file mode 100644
index d2dc99f57a0f9c70258078b62d7cce910b7d2fbe..0000000000000000000000000000000000000000
--- a/conversations/conv_045346.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 6.747793533678741,
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-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.620742336446661,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
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-      "speaker_id": 0,
-      "start_time": 13.433784570372362,
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-      "overlap": false,
-      "utterance_id": "2854-51658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51658.flac |",
-      "real_speaker_id": "2854",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.292421329122185,
-      "end_time": 23.431545386296875,
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.782539980084493,
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 50225
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.523194320705212,
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-      "duration": 1.4768056792947881,
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-      "utterance_id": "2854-51657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2854-51657.flac |",
-      "real_speaker_id": "2854",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "2854"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045350.json b/conversations/conv_045350.json
deleted file mode 100644
index bf8cf555ba34ffe5a7e3613ca82e22f42523d612..0000000000000000000000000000000000000000
--- a/conversations/conv_045350.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58755.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 53096
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.874199906161625,
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-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 57779
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 3.846214151912328,
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-      "utterance_id": "1825-135580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1825-135580.flac |",
-      "real_speaker_id": "1825",
-      "position_frames": 161512
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-      "speaker_id": "1825"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045357.json b/conversations/conv_045357.json
deleted file mode 100644
index 7d2e1552825c7210e65d4a946d8001fdfad17467..0000000000000000000000000000000000000000
--- a/conversations/conv_045357.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75912.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_045366.json b/conversations/conv_045366.json
deleted file mode 100644
index 6c60a1d7964d2646e3476add1262308cd4531906..0000000000000000000000000000000000000000
--- a/conversations/conv_045366.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.664738163934857,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2152-133043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-133043.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "5565",
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-    {
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-      "event_class": "Cat",
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-      "duration": 0.672108843537415,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2152/laugh/0050.wav",
-      "duration": 1.56,
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-      "speaker_id": "2152"
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "2152"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 16.09133888512752,
-      "speaker_id": "2999"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2152/laugh/0103.wav",
-      "duration": 0.7866286629316754,
-      "start_time": 15.302836548345667,
-      "speaker_id": "2152"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045370.json b/conversations/conv_045370.json
deleted file mode 100644
index e16d28746fa39aa25330a49f1f4647d0e15127c7..0000000000000000000000000000000000000000
--- a/conversations/conv_045370.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.845943766011471,
-      "duration": 6.845943766011471,
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-      "overlap": false,
-      "utterance_id": "2587-159393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-159393.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.078849901493938,
-      "end_time": 11.718842416897962,
-      "duration": 4.639992515404024,
-      "start_frame": 113261,
-      "duration_frames": 74239,
-      "overlap": false,
-      "utterance_id": "8272-279781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-54186.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "utterance_id": "224-133227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-133227.flac |",
-      "real_speaker_id": "224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.153248372495632,
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-      "utterance_id": "8272-279789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.509179813130427,
-      "end_time": 29.93978944212328,
-      "duration": 4.430609628992854,
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-      "duration_frames": 70889,
-      "overlap": false,
-      "utterance_id": "2587-54186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-54186.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 62822
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.099484650381683,
-      "end_time": 32.0,
-      "duration": 0.9005153496183169,
-      "start_frame": 497591,
-      "duration_frames": 14408,
-      "overlap": false,
-      "utterance_id": "8272-279781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 74239
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "speaker_id": "8272"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045384.json b/conversations/conv_045384.json
deleted file mode 100644
index 1868f9e7ac661a05fb382c8ff2698e16df866913..0000000000000000000000000000000000000000
--- a/conversations/conv_045384.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.215303461372113,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5463-39173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.0425675173744775,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
-      "real_speaker_id": "5463",
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "5463-39173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 137941
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "4051-11217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11217.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.984743763748263,
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-      "duration_frames": 88866,
-      "overlap": false,
-      "utterance_id": "5463-39174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39174.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.97130954647678,
-      "end_time": 31.215303461372113,
-      "duration": 2.2439939148953343,
-      "start_frame": 463540,
-      "duration_frames": 35903,
-      "overlap": true,
-      "utterance_id": "4051-11218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11218.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
-      "duration": 1.4814884088213955,
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-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5463/cough/0037.wav",
-      "duration": 1.1108163404115095,
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-      "speaker_id": "5463"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5463/laugh/0040.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4051/cough/0097.wav",
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-      "start_time": 29.924377352821885,
-      "speaker_id": "4051"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045385.json b/conversations/conv_045385.json
deleted file mode 100644
index c94a681e9f8fbd59f31f63903b317c54b5de6da0..0000000000000000000000000000000000000000
--- a/conversations/conv_045385.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.175978731065264,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.149277216903876,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-294466.flac |",
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-      "position_frames": 0
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-      "duration_frames": 95200,
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-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 89788
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "4788-91208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4788-91208.flac |",
-      "real_speaker_id": "4788",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1040-133433",
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-      "real_speaker_id": "1040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 184988
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_7.wav",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.8971934089534566,
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-    {
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-      "duration": 1.2,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "782"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045388.json b/conversations/conv_045388.json
deleted file mode 100644
index 37d5cb473289768c76d604c50bc408fe2b2c78ba..0000000000000000000000000000000000000000
--- a/conversations/conv_045388.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.666722125285368,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.074398170780797,
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-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.54276919533807,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/511-131226.flac |",
-      "real_speaker_id": "511",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-29012.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "511",
-      "position_frames": 69385
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045389.json b/conversations/conv_045389.json
deleted file mode 100644
index 83d84e80836e618026184300703b87d2dc439687..0000000000000000000000000000000000000000
--- a/conversations/conv_045389.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6077-58756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58756.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.774303451839936,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-61313.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "6077-56146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-56146.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 18.101226004946582,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58756.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 103640
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.813424137885413,
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-      "overlap": false,
-      "utterance_id": "6184-57833",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-57833.flac |",
-      "real_speaker_id": "6184",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.340782304621545,
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-      "duration": 1.6592176953784552,
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-      "utterance_id": "6077-58755",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58755.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_045393.json b/conversations/conv_045393.json
deleted file mode 100644
index 9624d6e5ff57f7c76d90417378f724b06ca030e7..0000000000000000000000000000000000000000
--- a/conversations/conv_045393.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.646284109061007,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "utterance_id": "8006-112592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 59246
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 112971
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.81351584559847,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_045402.json b/conversations/conv_045402.json
deleted file mode 100644
index 6f74e22d9972579aac0d1cedca5c01c2fcf0208e..0000000000000000000000000000000000000000
--- a/conversations/conv_045402.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5350-205002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205002.flac |",
-      "real_speaker_id": "5350",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
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-    {
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-      "utterance_id": "5448-19208",
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-      "real_speaker_id": "5448",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/323-126408.flac |",
-      "real_speaker_id": "323",
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-      "real_speaker_id": "5350",
-      "position_frames": 80181
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5350-205003",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-    {
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-      "duration": 1.24,
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\ No newline at end of file
diff --git a/conversations/conv_045405.json b/conversations/conv_045405.json
deleted file mode 100644
index 1e67cbc9f1d803c55e741bb9c15d8e0988a68a66..0000000000000000000000000000000000000000
--- a/conversations/conv_045405.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "7654-258963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-125137.flac |",
-      "real_speaker_id": "978",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.77034444910914,
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-      "utterance_id": "7879-274125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274125.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.487420771805855,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7654-258963.flac |",
-      "real_speaker_id": "7654",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274125.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 74526
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/978/cough/0063.wav",
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-      "speaker_id": "978"
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-      "event_class": "cough",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "7879"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045409.json b/conversations/conv_045409.json
deleted file mode 100644
index 7d11a0e14d880f25a22d090cfb3187f1736ed226..0000000000000000000000000000000000000000
--- a/conversations/conv_045409.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.082363430535045,
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-      "utterance_id": "5717-94876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-94876.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.589736474320535,
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-      "utterance_id": "6181-216552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.183437555954429,
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-      "duration_frames": 84339,
-      "overlap": true,
-      "utterance_id": "5717-94876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-94876.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 97317
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.18900752130148,
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-      "duration": 5.2548230272723595,
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-      "duration_frames": 84077,
-      "overlap": true,
-      "utterance_id": "5740-97610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97610.flac |",
-      "real_speaker_id": "5740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.936185158963568,
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-      "duration": 3.9214637620258603,
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-      "utterance_id": "6181-216552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 103684
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.115097460529604,
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-      "utterance_id": "5717-61421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-61421.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "Dishes",
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-      "speaker_id": "5740"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045412.json b/conversations/conv_045412.json
deleted file mode 100644
index b05545ca4a60a1d4611bf8127eb933c9b994ec1a..0000000000000000000000000000000000000000
--- a/conversations/conv_045412.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4051-11218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11218.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11218.flac |",
-      "real_speaker_id": "4051",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6498.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "4051-11218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11218.flac |",
-      "real_speaker_id": "4051",
-      "position_frames": 118034
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.358542258727756,
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-      "utterance_id": "4356-6506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6506.flac |",
-      "real_speaker_id": "4356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.72029992849788,
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-      "duration": 4.27970007150212,
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-      "utterance_id": "1624-142933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "1624"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045413.json b/conversations/conv_045413.json
deleted file mode 100644
index 4139b4cddabc2c70537e28dded58f328efcf64e8..0000000000000000000000000000000000000000
--- a/conversations/conv_045413.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.6890577283765,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1263-141777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-141777.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_frame": 112711,
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-      "overlap": false,
-      "utterance_id": "1195-135814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-135814.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.463681260725942,
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-      "start_frame": 183418,
-      "duration_frames": 59155,
-      "overlap": false,
-      "utterance_id": "1263-141777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-141777.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 105401
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "2003-143254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "1195",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1263-139804",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1263/laugh/0024.wav",
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-      "start_time": 29.86200666648326,
-      "speaker_id": "1263"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045425.json b/conversations/conv_045425.json
deleted file mode 100644
index 11ee354cf0040afe3c1787603f8db4d1b0661413..0000000000000000000000000000000000000000
--- a/conversations/conv_045425.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5450221709678007,
-      "duration": 3.5450221709678007,
-      "start_frame": 0,
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-      "utterance_id": "5935-43322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-43322.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7555",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-43305.flac |",
-      "real_speaker_id": "5935",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1096-128264.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_045429.json b/conversations/conv_045429.json
deleted file mode 100644
index 12e9689fdb0828313e931d78319587793a4bc6ea..0000000000000000000000000000000000000000
--- a/conversations/conv_045429.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "353-128309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-2327.flac |",
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-      "real_speaker_id": "3990",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-2327.flac |",
-      "real_speaker_id": "7085",
-      "position_frames": 51610
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.18192354149758,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 61880
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.73214552776309,
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-      "duration": 5.232944790076712,
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-      "overlap": false,
-      "utterance_id": "7085-75810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-75810.flac |",
-      "real_speaker_id": "7085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.32638950517717,
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-      "duration": 1.6736104948228316,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_045433.json b/conversations/conv_045433.json
deleted file mode 100644
index 88a6b237d716a3aca982d8cc255ea063c034cbb7..0000000000000000000000000000000000000000
--- a/conversations/conv_045433.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.11904582754285,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "6010-56788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56788.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 0
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-      "real_speaker_id": "8465",
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-      "real_speaker_id": "3547",
-      "position_frames": 0
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-      "position_frames": 86884
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "3547",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.329166887776356,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6010-56788.flac |",
-      "real_speaker_id": "6010",
-      "position_frames": 105282
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-  ],
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-  "foreground_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045438.json b/conversations/conv_045438.json
deleted file mode 100644
index 9e1cd47deaf3f2e3308b93e03ed3a4934113781e..0000000000000000000000000000000000000000
--- a/conversations/conv_045438.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6121-8686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6121-8686.flac |",
-      "real_speaker_id": "6121",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6512-67886.flac |",
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-      "segment_id": "seg0002",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1795-142410",
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1795/laugh/0046.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045444.json b/conversations/conv_045444.json
deleted file mode 100644
index c087bbee8bd8222d26fe115c2431c70a2e1d6e41..0000000000000000000000000000000000000000
--- a/conversations/conv_045444.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_045445.json b/conversations/conv_045445.json
deleted file mode 100644
index 4c642a4eedf7fccc820bb9f41206025f8353891a..0000000000000000000000000000000000000000
--- a/conversations/conv_045445.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-121405.flac |",
-      "real_speaker_id": "1544",
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\ No newline at end of file
diff --git a/conversations/conv_045448.json b/conversations/conv_045448.json
deleted file mode 100644
index 513ab5464f7d9cac235a153a8e77c111e7d664da..0000000000000000000000000000000000000000
--- a/conversations/conv_045448.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045452.json b/conversations/conv_045452.json
deleted file mode 100644
index 50fd2d5cbddcd89c3a4a437f721b90a53c33a395..0000000000000000000000000000000000000000
--- a/conversations/conv_045452.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-291953.flac |",
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-      "position_frames": 57144
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-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
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-      "segment_id": "seg0006",
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-      "utterance_id": "8677-246948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-246948.flac |",
-      "real_speaker_id": "8677",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7436/cough/0098.wav",
-      "duration": 0.90801881550132,
-      "start_time": 7.681491432252053,
-      "speaker_id": "7436"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8677/laugh/0077.wav",
-      "duration": 1.68,
-      "start_time": 28.307977126518765,
-      "speaker_id": "8677"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045464.json b/conversations/conv_045464.json
deleted file mode 100644
index abe09e93bf65e24e06559fa5a7455e22e636c75b..0000000000000000000000000000000000000000
--- a/conversations/conv_045464.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.487863662741496,
-  "num_speakers": 3,
-  "overlap_rate": 0.6666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7538-100044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100044.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.901278572910739,
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-      "utterance_id": "7170-281512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281512.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.2942222188001,
-      "end_time": 20.09233018161618,
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-      "start_frame": 212707,
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-      "overlap": true,
-      "utterance_id": "7538-100044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100044.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 98734
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.574737982492202,
-      "end_time": 24.290624214752523,
-      "duration": 3.7158862322603214,
-      "start_frame": 329195,
-      "duration_frames": 59454,
-      "overlap": true,
-      "utterance_id": "7170-281510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281510.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.0036445425753,
-      "end_time": 29.318337019924314,
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-      "overlap": true,
-      "utterance_id": "7538-100045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.498796997354308,
-      "end_time": 31.487863662741496,
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-      "start_frame": 487980,
-      "duration_frames": 15825,
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-      "utterance_id": "8011-291458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-291458.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7538/laugh/0094.wav",
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-      "start_time": 25.586043478624,
-      "speaker_id": "7538"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045468.json b/conversations/conv_045468.json
deleted file mode 100644
index 955e0afe5ba6e01cf8e856806e11c7f9cc317237..0000000000000000000000000000000000000000
--- a/conversations/conv_045468.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.334813019782807,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5874-52160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52160.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.352759622989129,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8215-275203.flac |",
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-      "utterance_id": "8215-275203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8215-275203.flac |",
-      "real_speaker_id": "8215",
-      "position_frames": 71937
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5874-52159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52159.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.85123520972809,
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-      "utterance_id": "8215-275211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8215-275211.flac |",
-      "real_speaker_id": "8215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.233566689081492,
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-      "start_frame": 451737,
-      "duration_frames": 49619,
-      "overlap": false,
-      "utterance_id": "7730-304535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304535.flac |",
-      "real_speaker_id": "7730",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8215"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045472.json b/conversations/conv_045472.json
deleted file mode 100644
index c2157eec67e245023f71acba9a3eaf70cff2190e..0000000000000000000000000000000000000000
--- a/conversations/conv_045472.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6821-74179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-74179.flac |",
-      "real_speaker_id": "6821",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4396-14564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-14564.flac |",
-      "real_speaker_id": "4396",
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-      "segment_id": "seg0002",
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-      "duration_frames": 83920,
-      "overlap": false,
-      "utterance_id": "6821-74179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-74179.flac |",
-      "real_speaker_id": "6821",
-      "position_frames": 82239
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.783778804500113,
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-      "duration_frames": 89283,
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-      "utterance_id": "4396-14564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-14564.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 86055
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.209732538232352,
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-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.202466203969728,
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-      "overlap": false,
-      "utterance_id": "6821-276753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-276753.flac |",
-      "real_speaker_id": "6821",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_045479.json b/conversations/conv_045479.json
deleted file mode 100644
index c3e01c9a7b438487e233014509483fcee7ff6ac5..0000000000000000000000000000000000000000
--- a/conversations/conv_045479.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4145-14013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-14013.flac |",
-      "real_speaker_id": "4145",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8684",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4145-34497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-34497.flac |",
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-      "real_speaker_id": "7326",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7326/laugh/0026.wav",
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-      "speaker_id": "4145"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045480.json b/conversations/conv_045480.json
deleted file mode 100644
index dfaf1f2cf0a2afd33645259b72ab7536c2a50ef8..0000000000000000000000000000000000000000
--- a/conversations/conv_045480.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.86425994358394,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 59223
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.73222231015341,
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-      "utterance_id": "7467-261121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.166756004117726,
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-      "utterance_id": "4841-26660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26660.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045487.json b/conversations/conv_045487.json
deleted file mode 100644
index 4dfdcf5501894cf006f0ba748fe615bf695d49df..0000000000000000000000000000000000000000
--- a/conversations/conv_045487.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.82991199570368,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 89901
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.016123098705197,
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-      "utterance_id": "2346-152201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
-      "position_frames": 109081
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-  "foreground_events": [
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-      "start_time": 30.8,
-      "speaker_id": "2346"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045491.json b/conversations/conv_045491.json
deleted file mode 100644
index a34c13f3d97951a67e81319b5761cd6af2b5cfb6..0000000000000000000000000000000000000000
--- a/conversations/conv_045491.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2911-12359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-12359.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-57158.flac |",
-      "real_speaker_id": "5789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.815049873033267,
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-      "real_speaker_id": "2911",
-      "position_frames": 75184
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 30.62,
-      "speaker_id": "6411"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045496.json b/conversations/conv_045496.json
deleted file mode 100644
index 30bb8cb8ef86325959ef40b807918b4374d641d6..0000000000000000000000000000000000000000
--- a/conversations/conv_045496.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "6575-67592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7220-77911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77911.flac |",
-      "real_speaker_id": "7220",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304535.flac |",
-      "real_speaker_id": "7730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7220-77905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77905.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.439786715892353,
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-      "utterance_id": "7730-304541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304541.flac |",
-      "real_speaker_id": "7730",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7220/laugh/0024.wav",
-      "duration": 1.6,
-      "start_time": 12.611986800020206,
-      "speaker_id": "7220"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7730/laugh/0109.wav",
-      "duration": 0.96,
-      "start_time": 23.028122530293757,
-      "speaker_id": "7730"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045501.json b/conversations/conv_045501.json
deleted file mode 100644
index 924352bc2cf0435d0ff7f6872c68e0e032446fc4..0000000000000000000000000000000000000000
--- a/conversations/conv_045501.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.186295126453942,
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-      "overlap": false,
-      "utterance_id": "5029-30593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-30593.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.250400663395721,
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-      "utterance_id": "5325-50109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5325-36587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-36587.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.240607447971712,
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-      "duration": 4.373029846463972,
-      "start_frame": 259849,
-      "duration_frames": 69968,
-      "overlap": false,
-      "utterance_id": "5789-57158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-57158.flac |",
-      "real_speaker_id": "5789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.033216212978864,
-      "end_time": 25.719812904392306,
-      "duration": 4.686596691413442,
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-      "overlap": false,
-      "utterance_id": "5029-31091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-31091.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.408203586183866,
-      "end_time": 30.80833640335285,
-      "duration": 4.400132817168985,
-      "start_frame": 422531,
-      "duration_frames": 70402,
-      "overlap": false,
-      "utterance_id": "5789-70653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-70653.flac |",
-      "real_speaker_id": "5789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.562660310909024,
-      "end_time": 32.0,
-      "duration": 0.437339689090976,
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-      "duration_frames": 6997,
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-      "utterance_id": "5029-31091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-31091.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 74985
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5325/laugh/0005.wav",
-      "duration": 1.24,
-      "start_time": 14.104910892087338,
-      "speaker_id": "5325"
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-      "event_class": "cough",
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-      "duration": 0.92,
-      "start_time": 15.916612328597234,
-      "speaker_id": "5325"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045517.json b/conversations/conv_045517.json
deleted file mode 100644
index 8c83211bd01aadea53f2957c24849f5ad2ad9dae..0000000000000000000000000000000000000000
--- a/conversations/conv_045517.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.057488399857917,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.2859082350544995,
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-      "utterance_id": "9023-296468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.790675889398705,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7250-86746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7250-86746.flac |",
-      "real_speaker_id": "7250",
-      "position_frames": 101274
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.65076281357,
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-      "duration_frames": 67470,
-      "overlap": false,
-      "utterance_id": "779-123708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123708.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.32575483211424,
-      "end_time": 26.00058694054933,
-      "duration": 3.6748321084350892,
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-      "utterance_id": "9023-296468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296468.flac |",
-      "real_speaker_id": "9023",
-      "position_frames": 84574
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "779-123709",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/779-123709.flac |",
-      "real_speaker_id": "779",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045521.json b/conversations/conv_045521.json
deleted file mode 100644
index f152fe88b1de97970b9333614814bc60e2ac9a57..0000000000000000000000000000000000000000
--- a/conversations/conv_045521.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.54363794590158,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4020-180289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180289.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2182-150130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.44707464819973,
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-      "utterance_id": "4020-180307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180307.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.055596465388184,
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-      "real_speaker_id": "2182",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.960710077474623,
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-      "duration_frames": 105326,
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-      "utterance_id": "4020-180307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4020-180307.flac |",
-      "real_speaker_id": "4020",
-      "position_frames": 65118
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4020/laugh/0053.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/cough/0055.wav",
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-      "start_time": 20.45716441288236,
-      "speaker_id": "2182"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045537.json b/conversations/conv_045537.json
deleted file mode 100644
index e1bfd7c09694d33ec3f2bd2e1238d925e002d805..0000000000000000000000000000000000000000
--- a/conversations/conv_045537.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.224689980618942,
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-      "start_frame": 0,
-      "duration_frames": 67595,
-      "overlap": false,
-      "utterance_id": "5118-40456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-40456.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1629-139707.flac |",
-      "real_speaker_id": "1629",
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-    {
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_045540.json b/conversations/conv_045540.json
deleted file mode 100644
index 5e2d46d1ab8895b9b81cca6e12184c76c697920d..0000000000000000000000000000000000000000
--- a/conversations/conv_045540.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.30457580315302,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-227.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
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-      "real_speaker_id": "4433",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 145690
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_045547.json b/conversations/conv_045547.json
deleted file mode 100644
index a64a4286b966ea2b340631dd6cf567b8f044ab89..0000000000000000000000000000000000000000
--- a/conversations/conv_045547.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "3272",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1052-139308.flac |",
-      "real_speaker_id": "1052",
-      "position_frames": 97456
-    }
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_045556.json b/conversations/conv_045556.json
deleted file mode 100644
index 744c0e28cc4851e386559791ddc0bbb0a459adf6..0000000000000000000000000000000000000000
--- a/conversations/conv_045556.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.166516778950758,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1933-146437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 0
-    },
-    {
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-      "position_frames": 70798
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-      "speaker_id": 2,
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-      "real_speaker_id": "1933",
-      "position_frames": 100449
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1933-146437.flac |",
-      "real_speaker_id": "1933",
-      "position_frames": 182991
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045557.json b/conversations/conv_045557.json
deleted file mode 100644
index 504135bbbf6c269cdb40127ac603ea155bad9876..0000000000000000000000000000000000000000
--- a/conversations/conv_045557.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.1036531653077475,
-      "duration": 6.1036531653077475,
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-      "duration_frames": 97658,
-      "overlap": false,
-      "utterance_id": "475-124999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124999.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.633398740833147,
-      "end_time": 10.520087712358952,
-      "duration": 3.886688971525805,
-      "start_frame": 106134,
-      "duration_frames": 62187,
-      "overlap": false,
-      "utterance_id": "2751-142362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142362.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.91127708335181,
-      "end_time": 16.442891125585472,
-      "duration": 5.531614042233663,
-      "start_frame": 174580,
-      "duration_frames": 88505,
-      "overlap": false,
-      "utterance_id": "475-124999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124999.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 97658
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.54420366958825,
-      "end_time": 22.14953920122719,
-      "duration": 5.60533553163894,
-      "start_frame": 264707,
-      "duration_frames": 89685,
-      "overlap": false,
-      "utterance_id": "850-131004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/850-131004.flac |",
-      "real_speaker_id": "850",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.789065224170333,
-      "end_time": 28.052475112375394,
-      "duration": 5.26340988820506,
-      "start_frame": 364625,
-      "duration_frames": 84214,
-      "overlap": false,
-      "utterance_id": "475-124999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124999.flac |",
-      "real_speaker_id": "475",
-      "position_frames": 186163
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.72244304106156,
-      "end_time": 32.0,
-      "duration": 3.2775569589384403,
-      "start_frame": 459559,
-      "duration_frames": 52440,
-      "overlap": false,
-      "utterance_id": "2751-142363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2751-142363.flac |",
-      "real_speaker_id": "2751",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 13.448282069728059,
-      "start_time": 11.511686453131253
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.6285959637462266,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_5.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2751/laugh/0020.wav",
-      "duration": 1.24,
-      "start_time": 10.815011148473861,
-      "speaker_id": "2751"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2751/cough/0040.wav",
-      "duration": 1.3126691918344278,
-      "start_time": 27.302115972912084,
-      "speaker_id": "2751"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045560.json b/conversations/conv_045560.json
deleted file mode 100644
index 7ebd070f9b353fefeec72f8b8a2a72df0ef80a71..0000000000000000000000000000000000000000
--- a/conversations/conv_045560.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.190188634904917,
-      "duration": 4.190188634904917,
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-      "overlap": false,
-      "utterance_id": "4059-3061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3061.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.917951112001235,
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-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "duration_frames": 99287,
-      "overlap": false,
-      "utterance_id": "6054-41610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6054-41610.flac |",
-      "real_speaker_id": "6054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4059-3061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3061.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 67043
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.153699197138913,
-      "end_time": 28.41949409242417,
-      "duration": 5.265794895285256,
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-      "overlap": false,
-      "utterance_id": "6792-73035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73035.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 101888
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.314740584765453,
-      "end_time": 32.0,
-      "duration": 2.6852594152345475,
-      "start_frame": 469035,
-      "duration_frames": 42964,
-      "overlap": false,
-      "utterance_id": "4059-3059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3059.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "start_time": 3.0399531094671874
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 0.8047971311033857,
-      "start_time": 24.778239385639864,
-      "speaker_id": "6792"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045576.json b/conversations/conv_045576.json
deleted file mode 100644
index c1db2fe89da9666301b8c9b0fb5190b001207b7d..0000000000000000000000000000000000000000
--- a/conversations/conv_045576.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.435517923989902,
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-      "utterance_id": "2499-156155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156155.flac |",
-      "real_speaker_id": "2499",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8291-282929",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3864-185126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185126.flac |",
-      "real_speaker_id": "3864",
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-    {
-      "event_class": "laugh",
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-      "start_time": 31.04,
-      "speaker_id": "3864"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045583.json b/conversations/conv_045583.json
deleted file mode 100644
index dfc38ca7d89975a155e1f245fcce3fd3a1916149..0000000000000000000000000000000000000000
--- a/conversations/conv_045583.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "end_time": 3.303226898816792,
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-      "utterance_id": "474-141425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-141425.flac |",
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8012/laugh/0089.wav",
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-      "start_time": 31.034172606990957,
-      "speaker_id": "8012"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045584.json b/conversations/conv_045584.json
deleted file mode 100644
index 697147281fe4d58617a75648a431987019c02992..0000000000000000000000000000000000000000
--- a/conversations/conv_045584.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.648990585376268,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-110526.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 4.698400118085526,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
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-      "speaker_id": 0,
-      "start_time": 10.993118734111288,
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-      "utterance_id": "7752-113336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-113336.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.153249632623762,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 92856
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.216620256135727,
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-      "utterance_id": "7752-113336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7752-113336.flac |",
-      "real_speaker_id": "7752",
-      "position_frames": 91269
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1691-142296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 150229
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-      "duration": 1.24,
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-      "speaker_id": "7752"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045592.json b/conversations/conv_045592.json
deleted file mode 100644
index 1adec3478b384df158b9fd85b0f47bf43f8168da..0000000000000000000000000000000000000000
--- a/conversations/conv_045592.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185517.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
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-    {
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-      "utterance_id": "36-16603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.470925107591146,
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-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "speaker_id": "36"
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\ No newline at end of file
diff --git a/conversations/conv_045595.json b/conversations/conv_045595.json
deleted file mode 100644
index f852cc8011e4da0a2ff81eca6c9214423f3837af..0000000000000000000000000000000000000000
--- a/conversations/conv_045595.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.67702684733598,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 0
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-      "real_speaker_id": "7463",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
-      "real_speaker_id": "4216",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6913",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4216-10192.flac |",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_045599.json b/conversations/conv_045599.json
deleted file mode 100644
index 8cbabe95eac9c7df8d00fb3f5e3d47c9f479d69b..0000000000000000000000000000000000000000
--- a/conversations/conv_045599.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1165-135220",
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-      "position_frames": 0
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-      "position_frames": 60292
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.30485862628116,
-      "end_time": 32.0,
-      "duration": 0.6951413737188403,
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-      "duration_frames": 11122,
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-      "utterance_id": "3112-9554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9554.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-      "duration": 0.30563230993637575,
-      "start_time": 0,
-      "speaker_id": "1165"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1165/laugh/0001.wav",
-      "duration": 1.2240154986377951,
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-      "event_class": "cough",
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-      "duration": 1.04,
-      "start_time": 21.668406577511586,
-      "speaker_id": "1165"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045603.json b/conversations/conv_045603.json
deleted file mode 100644
index 6c7399716069f6b042ecb9d96694571116121864..0000000000000000000000000000000000000000
--- a/conversations/conv_045603.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.294896178937083,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.6604882693528324,
-      "duration": 5.6604882693528324,
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-      "duration_frames": 90567,
-      "overlap": false,
-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.9266330352040635,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73075.flac |",
-      "real_speaker_id": "6690",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.329816009090607,
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-      "utterance_id": "6690-73073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73073.flac |",
-      "real_speaker_id": "6690",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.099378425904916,
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-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 90567
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.233274823737805,
-      "end_time": 31.294896178937083,
-      "duration": 3.0616213551992777,
-      "start_frame": 451732,
-      "duration_frames": 48985,
-      "overlap": true,
-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 147615
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
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-      "event_class": "laugh",
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-      "start_time": 22.687092073002006,
-      "speaker_id": "6690"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045604.json b/conversations/conv_045604.json
deleted file mode 100644
index 8864affed20f5a35356adc385f5d1914622f6382..0000000000000000000000000000000000000000
--- a/conversations/conv_045604.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1726-142316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.53514818786393,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-46588.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 0
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-      "utterance_id": "1726-142316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 76491
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "688-15446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-15446.flac |",
-      "real_speaker_id": "688",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "688-46588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-46588.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 68969
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5152-81825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5152-81825.flac |",
-      "real_speaker_id": "5152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.010839179362993,
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-      "duration": 0.9891608206370073,
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-      "utterance_id": "688-46588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-46588.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 143171
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/688/laugh/0008.wav",
-      "duration": 1.16,
-      "start_time": 4.1697131253902,
-      "speaker_id": "688"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/688/laugh/0022.wav",
-      "duration": 1.08,
-      "start_time": 13.358095342895888,
-      "speaker_id": "688"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/688/laugh/0108.wav",
-      "duration": 0.699550217418021,
-      "start_time": 24.63425841864408,
-      "speaker_id": "688"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045605.json b/conversations/conv_045605.json
deleted file mode 100644
index 12fde234bb5436d10675599cb6f2362a22a25981..0000000000000000000000000000000000000000
--- a/conversations/conv_045605.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.503669894011024,
-      "duration": 5.503669894011024,
-      "start_frame": 0,
-      "duration_frames": 88058,
-      "overlap": false,
-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 6.018822219205836,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4267-78186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-78186.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.44310040897042,
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-      "utterance_id": "1401-174511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-174511.flac |",
-      "real_speaker_id": "1401",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "4267",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.456777182437065,
-      "end_time": 32.0,
-      "duration": 2.543222817562935,
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-      "duration_frames": 40691,
-      "overlap": false,
-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 178793
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8684/laugh/0005.wav",
-      "duration": 0.9883515514952055,
-      "start_time": 0,
-      "speaker_id": "8684"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4267/cough/0022.wav",
-      "duration": 1.16,
-      "start_time": 17.98147150217193,
-      "speaker_id": "4267"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8684/laugh/0017.wav",
-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "8684"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045608.json b/conversations/conv_045608.json
deleted file mode 100644
index 0abb5f1b0f694e6ae53ee1fe16315d8eb2e3defb..0000000000000000000000000000000000000000
--- a/conversations/conv_045608.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.797157790029956,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "5588-68188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-68188.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.740107637810154,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.121429893394073,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-7360.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 109929
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.90856174635721,
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-      "overlap": false,
-      "utterance_id": "6735-66412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-66412.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2405/laugh/0017.wav",
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-      "speaker_id": "6735"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045612.json b/conversations/conv_045612.json
deleted file mode 100644
index 43accc06fa53164978a6224fe9a4033557e76dd8..0000000000000000000000000000000000000000
--- a/conversations/conv_045612.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5390-30096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30096.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.843794713367792,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286666.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
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-      "utterance_id": "5390-30102",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30102.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-279797.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 23.146883857675817,
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-      "utterance_id": "1166-136562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-136562.flac |",
-      "real_speaker_id": "1166",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.95339096344486,
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-      "duration": 2.0466090365551395,
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-      "duration_frames": 32745,
-      "overlap": false,
-      "utterance_id": "5390-30096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5390-30096.flac |",
-      "real_speaker_id": "5390",
-      "position_frames": 110006
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "5390"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045615.json b/conversations/conv_045615.json
deleted file mode 100644
index d4ad6faad1350192d07e2be5fe648b318149de58..0000000000000000000000000000000000000000
--- a/conversations/conv_045615.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7001-12337",
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-      "position_frames": 0
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-      "real_speaker_id": "7991",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "real_speaker_id": "7001",
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-      "utterance_id": "7991-102381",
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-      "real_speaker_id": "7991",
-      "position_frames": 187551
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-  ],
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-  "foreground_events": [
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7991/laugh/0101.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7991/laugh/0031.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045624.json b/conversations/conv_045624.json
deleted file mode 100644
index 7c3da79467e69aa18d8738a0ddd65db2b375cfbe..0000000000000000000000000000000000000000
--- a/conversations/conv_045624.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
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-      "speaker_id": "727"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6506/laugh/0003.wav",
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-      "speaker_id": "6506"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0894972034788497,
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-      "speaker_id": "613"
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-      "event_class": "cough",
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-      "start_time": 31.4621676886309,
-      "speaker_id": "613"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045628.json b/conversations/conv_045628.json
deleted file mode 100644
index 5c503b0feca6f168a444b0bf5c40d18bc0bd8baa..0000000000000000000000000000000000000000
--- a/conversations/conv_045628.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.234601245018185,
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-      "utterance_id": "263-121285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/263-121285.flac |",
-      "real_speaker_id": "263",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.703410376848362,
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-      "utterance_id": "7495-252341",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-252341.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "263-121285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/263-121285.flac |",
-      "real_speaker_id": "263",
-      "position_frames": 67753
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.873815228217303,
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-      "overlap": true,
-      "utterance_id": "2607-177740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177740.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.034776779950185,
-      "end_time": 26.981025015797712,
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-      "overlap": false,
-      "utterance_id": "7495-102612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7495-102612.flac |",
-      "real_speaker_id": "7495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.388565182624795,
-      "end_time": 32.0,
-      "duration": 4.611434817375205,
-      "start_frame": 438217,
-      "duration_frames": 73782,
-      "overlap": false,
-      "utterance_id": "263-121311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/263-121311.flac |",
-      "real_speaker_id": "263",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/263/laugh/0047.wav",
-      "duration": 1.32,
-      "start_time": 13.92631868929851,
-      "speaker_id": "263"
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/263/laugh/0039.wav",
-      "duration": 0.7538298583832921,
-      "start_time": 29.483641155234125,
-      "speaker_id": "263"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045629.json b/conversations/conv_045629.json
deleted file mode 100644
index 820d2b63460287b37133bcf26ea4bf30077febd9..0000000000000000000000000000000000000000
--- a/conversations/conv_045629.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.125,
-  "segments": [
-    {
-      "segment_id": "seg0000",
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-      "start_time": 0.0,
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-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.133274422110872,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156087.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 73076
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123504.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.076269345159275,
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-      "utterance_id": "2496-156089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156089.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.57017621910808,
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-      "duration_frames": 64378,
-      "overlap": false,
-      "utterance_id": "302-123504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123504.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 65560
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "end_time": 30.936513256740128,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156067.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 0,
-      "start_time": 31.228644551247122,
-      "end_time": 32.0,
-      "duration": 0.7713554487528782,
-      "start_frame": 499658,
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-      "overlap": false,
-      "utterance_id": "302-123504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123504.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 129938
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.32,
-      "start_time": 27.613061761130865,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2496/cough/0096.wav",
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-      "speaker_id": "2496"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045632.json b/conversations/conv_045632.json
deleted file mode 100644
index aca141c4e0f69eb56d17292a485645a60a695ff3..0000000000000000000000000000000000000000
--- a/conversations/conv_045632.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "7871-107222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7871-107222.flac |",
-      "real_speaker_id": "7871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "7059-77900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77900.flac |",
-      "real_speaker_id": "7059",
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-    {
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-      "utterance_id": "1116-132851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132851.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77897.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7871-107225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7871-107225.flac |",
-      "real_speaker_id": "7871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.54194427930453,
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-      "duration": 3.4580557206954694,
-      "start_frame": 456671,
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-      "overlap": false,
-      "utterance_id": "7059-77900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77900.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 50459
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1116/laugh/0001.wav",
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-      "speaker_id": "7059"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045642.json b/conversations/conv_045642.json
deleted file mode 100644
index b78911f52982c7b6d3c1861c20c550b055276f80..0000000000000000000000000000000000000000
--- a/conversations/conv_045642.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1901-48014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-48014.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5242-35921",
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-      "real_speaker_id": "5242",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35921.flac |",
-      "real_speaker_id": "5242",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_045645.json b/conversations/conv_045645.json
deleted file mode 100644
index 6a519d4fe2c5024bedcf2407a5940a8bf1362761..0000000000000000000000000000000000000000
--- a/conversations/conv_045645.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-127521.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178030.flac |",
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-      "segment_id": "seg0002",
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-      "utterance_id": "3835-178028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178028.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.808835053830649,
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-      "utterance_id": "459-123443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-123443.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.758672723884207,
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-      "utterance_id": "3835-178029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3835-178029.flac |",
-      "real_speaker_id": "3835",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "459-123443",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-123443.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 84529
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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\ No newline at end of file
diff --git a/conversations/conv_045649.json b/conversations/conv_045649.json
deleted file mode 100644
index 2985ef286b2e9a462683587d8de86274bf9bc1f2..0000000000000000000000000000000000000000
--- a/conversations/conv_045649.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-14936.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 0
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-      "real_speaker_id": "4363",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "5045",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-11049.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.839052843646034,
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-      "overlap": false,
-      "utterance_id": "5019-274728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-274728.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 80655
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-  "background_events": [
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-      "duration": 1.7,
-      "start_time": 8.205780875290296,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "5045"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045653.json b/conversations/conv_045653.json
deleted file mode 100644
index b585f50d46b8844e688ceb01ad53f1e12593b972..0000000000000000000000000000000000000000
--- a/conversations/conv_045653.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-163698.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-163698.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 83618
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.0900417773964,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "4039-184265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184265.flac |",
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3125/cough/0010.wav",
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-    {
-      "event_class": "laugh",
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-    {
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-      "speaker_id": "3125"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045654.json b/conversations/conv_045654.json
deleted file mode 100644
index 73bc5e3d4ef9410848d1cd505dc8fcbe30580f41..0000000000000000000000000000000000000000
--- a/conversations/conv_045654.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "927-132462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/927-132462.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "927",
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-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045665.json b/conversations/conv_045665.json
deleted file mode 100644
index 4b5a5e9a49dcb4477ebfbb3eba2410c5df756cc6..0000000000000000000000000000000000000000
--- a/conversations/conv_045665.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.400074934606824,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6019-3185.flac |",
-      "real_speaker_id": "6019",
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\ No newline at end of file
diff --git a/conversations/conv_045669.json b/conversations/conv_045669.json
deleted file mode 100644
index 71eedd441371b8f15732fbdfbb650bf75f959212..0000000000000000000000000000000000000000
--- a/conversations/conv_045669.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8422",
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\ No newline at end of file
diff --git a/conversations/conv_045672.json b/conversations/conv_045672.json
deleted file mode 100644
index a4931a34d2014f3219c37240a827a74a14de6f50..0000000000000000000000000000000000000000
--- a/conversations/conv_045672.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-12723.flac |",
-      "real_speaker_id": "4289",
-      "position_frames": 131420
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7505/laugh/0100.wav",
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-      "speaker_id": "7505"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4289/laugh/0081.wav",
-      "duration": 1.44,
-      "start_time": 28.924897697600283,
-      "speaker_id": "4289"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_045673.json b/conversations/conv_045673.json
deleted file mode 100644
index e65883e8dcefca0d809eb68e2299e47129acfa99..0000000000000000000000000000000000000000
--- a/conversations/conv_045673.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.040881678167068,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1614-13759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-13759.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295756.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 9.204507684730496,
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-      "utterance_id": "3100-142810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3100-142810.flac |",
-      "real_speaker_id": "3100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.1455677692433,
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-      "utterance_id": "8635-295759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295759.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.68706586147846,
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-      "utterance_id": "1614-13785",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-13785.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.90632133848217,
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-      "duration_frames": 66152,
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-      "utterance_id": "3100-142810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3100-142810.flac |",
-      "real_speaker_id": "3100",
-      "position_frames": 69889
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8635/cough/0100.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8635/laugh/0062.wav",
-      "duration": 0.953027054925349,
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-      "speaker_id": "8635"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045686.json b/conversations/conv_045686.json
deleted file mode 100644
index 6052ebbd5aa9b30ef55e1e01790eb2cac51e31c9..0000000000000000000000000000000000000000
--- a/conversations/conv_045686.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
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-      "real_speaker_id": "8058",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "5139-30105",
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-      "real_speaker_id": "5139",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.18737485736249,
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-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
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-      "position_frames": 206370
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_045690.json b/conversations/conv_045690.json
deleted file mode 100644
index 62c948e011b1458f20995bd8ff3f8aa9162d8694..0000000000000000000000000000000000000000
--- a/conversations/conv_045690.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.61411568273399,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19218.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3955-181687.flac |",
-      "real_speaker_id": "3955",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "459-127522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-127522.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.80068700897587,
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-      "utterance_id": "5393-19218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19218.flac |",
-      "real_speaker_id": "5393",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/459-127522.flac |",
-      "real_speaker_id": "459",
-      "position_frames": 94061
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-  "background_events": [
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-      "event_class": "Frying",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/459/laugh/0008.wav",
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\ No newline at end of file
diff --git a/conversations/conv_045691.json b/conversations/conv_045691.json
deleted file mode 100644
index 488e96a93392a6b75d9e2b37cc989bce6fbea47c..0000000000000000000000000000000000000000
--- a/conversations/conv_045691.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2136-5143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5143.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.280126918886992,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.592686796428957,
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-      "overlap": false,
-      "utterance_id": "8307-120458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120458.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.1621758140032,
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-      "duration_frames": 92493,
-      "overlap": false,
-      "utterance_id": "7795-105407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
-      "position_frames": 102767
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration": 4.438436829313041,
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-      "utterance_id": "2136-5143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5143.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 101804
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79638.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2136/cough/0033.wav",
-      "duration": 1.16,
-      "start_time": 5.198787697205375,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045700.json b/conversations/conv_045700.json
deleted file mode 100644
index 1910b646922b4c8480afac66530ec1b3c3c19251..0000000000000000000000000000000000000000
--- a/conversations/conv_045700.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2607-177749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2607-177749.flac |",
-      "real_speaker_id": "2607",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "5445",
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-      "speaker_id": "2607"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_045707.json b/conversations/conv_045707.json
deleted file mode 100644
index 08b4803d5a326d7a23eb8cf1e9f85622c044f3a9..0000000000000000000000000000000000000000
--- a/conversations/conv_045707.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121440.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121440.flac |",
-      "real_speaker_id": "3021",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 80521
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3021-121440.flac |",
-      "real_speaker_id": "3021",
-      "position_frames": 148678
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 162469
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_045711.json b/conversations/conv_045711.json
deleted file mode 100644
index f0b258816b3e113dd20d7e1855908dd060f405ed..0000000000000000000000000000000000000000
--- a/conversations/conv_045711.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
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-      "utterance_id": "2122-149350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2122-149350.flac |",
-      "real_speaker_id": "2122",
-      "position_frames": 93268
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5652-19215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-19215.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.549915794390895,
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-      "utterance_id": "525-126965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/525-126965.flac |",
-      "real_speaker_id": "525",
-      "position_frames": 173415
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_7.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2122/laugh/0022.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045716.json b/conversations/conv_045716.json
deleted file mode 100644
index e5627cc0b6e6adbc5c6b3782bc636435a24352a5..0000000000000000000000000000000000000000
--- a/conversations/conv_045716.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2299-6525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6525.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.452619034404186,
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-      "utterance_id": "2056-143893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2056-143893.flac |",
-      "real_speaker_id": "2056",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6524.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2056",
-      "position_frames": 123314
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 88454,
-      "overlap": false,
-      "utterance_id": "2299-6524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2299-6524.flac |",
-      "real_speaker_id": "2299",
-      "position_frames": 94487
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6317-54487.flac |",
-      "real_speaker_id": "6317",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2299/laugh/0005.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045720.json b/conversations/conv_045720.json
deleted file mode 100644
index 6fee96fcf020d52a84b4f41abb94cca51550a8e9..0000000000000000000000000000000000000000
--- a/conversations/conv_045720.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.201474230020244,
-      "duration": 3.201474230020244,
-      "start_frame": 0,
-      "duration_frames": 51223,
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\ No newline at end of file
diff --git a/conversations/conv_045736.json b/conversations/conv_045736.json
deleted file mode 100644
index 82d889bdc1a28482a4aa6d76ba48824e8024bfee..0000000000000000000000000000000000000000
--- a/conversations/conv_045736.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_045741.json b/conversations/conv_045741.json
deleted file mode 100644
index d32f0d90976451712be7fe2efdb95859449b1c1e..0000000000000000000000000000000000000000
--- a/conversations/conv_045741.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_045746.json b/conversations/conv_045746.json
deleted file mode 100644
index 9f3e498451fa7ae0b2b377164b5c4c68974a8c5c..0000000000000000000000000000000000000000
--- a/conversations/conv_045746.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/720/laugh/0162.wav",
-      "duration": 1.34,
-      "start_time": 9.667157518562918,
-      "speaker_id": "720"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/720/laugh/0152.wav",
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-      "start_time": 21.656758625803754,
-      "speaker_id": "720"
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-    {
-      "event_class": "cough",
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-      "duration": 0.7931612510113439,
-      "start_time": 22.001811412176185,
-      "speaker_id": "720"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/49/laugh/0006.wav",
-      "duration": 1.289076288826069,
-      "start_time": 27.958643516332874,
-      "speaker_id": "49"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045750.json b/conversations/conv_045750.json
deleted file mode 100644
index bb80e8d5a7228cf8bf09f8459ad62f5bc75aec91..0000000000000000000000000000000000000000
--- a/conversations/conv_045750.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.101732530618385,
-      "duration": 4.101732530618385,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7505-258958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7505-258958.flac |",
-      "real_speaker_id": "7505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.4441330069990785,
-      "end_time": 11.301267358198643,
-      "duration": 6.857134351199564,
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-      "duration_frames": 109714,
-      "overlap": false,
-      "utterance_id": "1638-84448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84448.flac |",
-      "real_speaker_id": "1638",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
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-      "duration": 5.355104711838099,
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-      "overlap": false,
-      "utterance_id": "7505-258958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7505-258958.flac |",
-      "real_speaker_id": "7505",
-      "position_frames": 65627
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.7118934598125,
-      "end_time": 22.575071548062034,
-      "duration": 4.863178088249533,
-      "start_frame": 283390,
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-      "overlap": false,
-      "utterance_id": "1638-84447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84447.flac |",
-      "real_speaker_id": "1638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.853638161176516,
-      "end_time": 28.524986027037787,
-      "duration": 5.6713478658612715,
-      "start_frame": 365658,
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-      "overlap": false,
-      "utterance_id": "7505-258958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7505-258958.flac |",
-      "real_speaker_id": "7505",
-      "position_frames": 151308
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.515917710072603,
-      "end_time": 32.0,
-      "duration": 2.4840822899273967,
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-      "duration_frames": 39745,
-      "overlap": false,
-      "utterance_id": "298-126790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126790.flac |",
-      "real_speaker_id": "298",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
-      "duration": 20.821149970732495,
-      "start_time": 1.201752196709417
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7505/laugh/0007.wav",
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-    {
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-      "duration": 1.4233269834732254,
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-      "speaker_id": "1638"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "1638"
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 28.602149951896962,
-      "speaker_id": "7505"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045757.json b/conversations/conv_045757.json
deleted file mode 100644
index ed56f01142faf98e313276372d60838e624ec1b0..0000000000000000000000000000000000000000
--- a/conversations/conv_045757.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8500-258286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258286.flac |",
-      "real_speaker_id": "8500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.8891556146859365,
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-      "utterance_id": "8215-275211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8215-275211.flac |",
-      "real_speaker_id": "8215",
-      "position_frames": 0
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-      "duration": 5.6577081622288485,
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-      "duration_frames": 90523,
-      "overlap": false,
-      "utterance_id": "8500-258285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258285.flac |",
-      "real_speaker_id": "8500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.370450665709885,
-      "end_time": 24.481318838501668,
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-      "duration_frames": 97773,
-      "overlap": false,
-      "utterance_id": "8215-117570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8215-117570.flac |",
-      "real_speaker_id": "8215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.0812945988354,
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-      "overlap": false,
-      "utterance_id": "8500-258286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258286.flac |",
-      "real_speaker_id": "8500",
-      "position_frames": 83708
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "8215-275203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8215-275203.flac |",
-      "real_speaker_id": "8215",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_3.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8215/laugh/0022.wav",
-      "duration": 1.46,
-      "start_time": 30.54,
-      "speaker_id": "8215"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045761.json b/conversations/conv_045761.json
deleted file mode 100644
index 84bd777b191cc7c4bcfbad2471ba889abc7ea411..0000000000000000000000000000000000000000
--- a/conversations/conv_045761.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.94804195944425,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "2021-235245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235245.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.333680194102798,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235244.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2021-235245.flac |",
-      "real_speaker_id": "2021",
-      "position_frames": 73592
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.093061743716078,
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-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 19.195827470137594,
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-}
\ No newline at end of file
diff --git a/conversations/conv_045777.json b/conversations/conv_045777.json
deleted file mode 100644
index 2dd09c478c9cfdf00d5abed91b62bf471af371b4..0000000000000000000000000000000000000000
--- a/conversations/conv_045777.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.915754572167583,
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-      "start_frame": 0,
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-      "utterance_id": "7828-105179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
-      "real_speaker_id": "7828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.039553866372346,
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-      "real_speaker_id": "8259",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7828-105171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105171.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "8095",
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045782.json b/conversations/conv_045782.json
deleted file mode 100644
index 1f2fccd6c1b4788d4b4f513c2491901e9ae52c82..0000000000000000000000000000000000000000
--- a/conversations/conv_045782.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4277-185517.flac |",
-      "real_speaker_id": "4277",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3356-132542.flac |",
-      "real_speaker_id": "3356",
-      "position_frames": 60528
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-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_045783.json b/conversations/conv_045783.json
deleted file mode 100644
index 73a324a5fcd9307ecb21835a076686d25bdf9e3d..0000000000000000000000000000000000000000
--- a/conversations/conv_045783.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "1903",
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-      "speaker_id": "1336"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045794.json b/conversations/conv_045794.json
deleted file mode 100644
index 28a59102d0aba6ee9f842a02920759b90ea17327..0000000000000000000000000000000000000000
--- a/conversations/conv_045794.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-7763.flac |",
-      "real_speaker_id": "7148",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-296083.flac |",
-      "real_speaker_id": "6670",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "845",
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-      "position_frames": 0
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-  ],
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/845/laugh/0017.wav",
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-      "speaker_id": "845"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045798.json b/conversations/conv_045798.json
deleted file mode 100644
index b08eec0d967f5287725ce9e33957dc090dfcfbb7..0000000000000000000000000000000000000000
--- a/conversations/conv_045798.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "89-219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/89-219.flac |",
-      "real_speaker_id": "89",
-      "position_frames": 75495
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-      "position_frames": 83992
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.920760235216477,
-      "end_time": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2518-154826.flac |",
-      "real_speaker_id": "2518",
-      "position_frames": 86042
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-      "speaker_id": "3381"
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\ No newline at end of file
diff --git a/conversations/conv_045804.json b/conversations/conv_045804.json
deleted file mode 100644
index 7ea1474b5e1993a6f21bcc143683d24319e5539c..0000000000000000000000000000000000000000
--- a/conversations/conv_045804.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 5.591526517156103,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176663.flac |",
-      "real_speaker_id": "3843",
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-      "speaker_id": 1,
-      "start_time": 22.512978151460075,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4731-95870.flac |",
-      "real_speaker_id": "4731",
-      "position_frames": 73308
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045805.json b/conversations/conv_045805.json
deleted file mode 100644
index 9b6f9575cb7eb5f2e98591d4cdfbbb404d3cb398..0000000000000000000000000000000000000000
--- a/conversations/conv_045805.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "6747",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76145.flac |",
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-      "position_frames": 92337
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-}
\ No newline at end of file
diff --git a/conversations/conv_045809.json b/conversations/conv_045809.json
deleted file mode 100644
index f41b3991eba0b923c958ea5badf1cf08c589928a..0000000000000000000000000000000000000000
--- a/conversations/conv_045809.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-140055.flac |",
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-      "position_frames": 0
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-      "speaker_id": "1544"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3157/laugh/0010.wav",
-      "duration": 1.28,
-      "start_time": 25.23800804527329,
-      "speaker_id": "3157"
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-    {
-      "event_class": "cough",
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-      "start_time": 30.4833561921156,
-      "speaker_id": "1544"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045813.json b/conversations/conv_045813.json
deleted file mode 100644
index e73ee8b36ef8c229c3f4c0ef399b2d8243dd0489..0000000000000000000000000000000000000000
--- a/conversations/conv_045813.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.968118782169967,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "339-132718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132718.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.986111376863515,
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.921706198121155,
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-      "utterance_id": "339-132718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132718.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 74641
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.75906362574085,
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-      "duration": 5.8045481546062305,
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-      "utterance_id": "2473-155521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-155521.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.89310888609131,
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-      "duration_frames": 54287,
-      "overlap": false,
-      "utterance_id": "339-132717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132717.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.53729011884453,
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-      "utterance_id": "339-132717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/339-132717.flac |",
-      "real_speaker_id": "339",
-      "position_frames": 54287
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "duration": 1.44,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/339/laugh/0062.wav",
-      "duration": 1.36,
-      "start_time": 22.421283288803238,
-      "speaker_id": "339"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045814.json b/conversations/conv_045814.json
deleted file mode 100644
index ba473df8320c7ef8bef9aa55aec42c09d116db6c..0000000000000000000000000000000000000000
--- a/conversations/conv_045814.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
-      "real_speaker_id": "778",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 78020
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.02712654183297,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
-      "real_speaker_id": "778",
-      "position_frames": 59298
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.06309099665868,
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-      "duration": 5.93690900334132,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 150227
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-      "duration": 1.44,
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-    {
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "5412"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045825.json b/conversations/conv_045825.json
deleted file mode 100644
index fc31c4a18e04bccc5259af0219aeec9473a0de40..0000000000000000000000000000000000000000
--- a/conversations/conv_045825.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1152-126550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126550.flac |",
-      "real_speaker_id": "1152",
-      "position_frames": 0
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-      "real_speaker_id": "7199",
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-      "speaker_id": 0,
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-    {
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-      "real_speaker_id": "7199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.79697087358523,
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-      "overlap": false,
-      "utterance_id": "1152-126549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126549.flac |",
-      "real_speaker_id": "1152",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.685703883980565,
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-}
\ No newline at end of file
diff --git a/conversations/conv_045829.json b/conversations/conv_045829.json
deleted file mode 100644
index d895aee5b645517982e737c758362cc920e033b9..0000000000000000000000000000000000000000
--- a/conversations/conv_045829.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6482-98864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6482-98864.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 162269
-    }
-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-      "duration": 1.02,
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-      "speaker_id": "1594"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045833.json b/conversations/conv_045833.json
deleted file mode 100644
index 8caed2864069aeef5460fef8dbb744725e54d0e6..0000000000000000000000000000000000000000
--- a/conversations/conv_045833.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5379-15784.flac |",
-      "real_speaker_id": "5379",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.9248388209975467,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "2159-179154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179154.flac |",
-      "real_speaker_id": "2159",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.988159385555097,
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-      "duration_frames": 81299,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134708.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.167406219461412,
-      "end_time": 26.980745861099457,
-      "duration": 4.813339641638045,
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-      "overlap": false,
-      "utterance_id": "2159-179157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2159-179157.flac |",
-      "real_speaker_id": "2159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.991688438518693,
-      "end_time": 32.0,
-      "duration": 4.008311561481307,
-      "start_frame": 447867,
-      "duration_frames": 64132,
-      "overlap": false,
-      "utterance_id": "1001-134707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1001-134707.flac |",
-      "real_speaker_id": "1001",
-      "position_frames": 81812
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1001"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045838.json b/conversations/conv_045838.json
deleted file mode 100644
index f1d1f2e3b12f8326f088853c858c18153d239b10..0000000000000000000000000000000000000000
--- a/conversations/conv_045838.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.27217974449198,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 3.893461876989411,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
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-      "utterance_id": "698-122876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122876.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 86057
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-      "segment_id": "seg0004",
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-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 61270
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "698-123197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-123197.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7096/cough/0047.wav",
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-      "start_time": 31.32448213729119,
-      "speaker_id": "698"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045844.json b/conversations/conv_045844.json
deleted file mode 100644
index 1b7cd2051897c805d8f2afc9347c86bedfd77ad8..0000000000000000000000000000000000000000
--- a/conversations/conv_045844.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "168-123450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-123450.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "168-123450",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-123450.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 81653
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "168-129245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-129245.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.389465712374196,
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-      "utterance_id": "5765-87740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5765-87740.flac |",
-      "real_speaker_id": "5765",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.324658077326482,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96151.flac |",
-      "real_speaker_id": "7318",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5765-87740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5765-87740.flac |",
-      "real_speaker_id": "5765",
-      "position_frames": 70556
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.113350395868885,
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-      "duration": 1.8866496041311152,
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-      "utterance_id": "168-129245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/168-129245.flac |",
-      "real_speaker_id": "168",
-      "position_frames": 86867
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5765/laugh/0070.wav",
-      "duration": 1.16,
-      "start_time": 19.03890232325604,
-      "speaker_id": "5765"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7318/cough/0041.wav",
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-    {
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-      "start_time": 30.55319242620414,
-      "speaker_id": "168"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045848.json b/conversations/conv_045848.json
deleted file mode 100644
index 07f6b6bb06a3c4f2c2980178d260f343b3138aa3..0000000000000000000000000000000000000000
--- a/conversations/conv_045848.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_045852.json b/conversations/conv_045852.json
deleted file mode 100644
index eceb9aebe602dc624e8b7e66968bd94c37b49676..0000000000000000000000000000000000000000
--- a/conversations/conv_045852.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7285-72207.flac |",
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-      "position_frames": 91916
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_045864.json b/conversations/conv_045864.json
deleted file mode 100644
index 5c843b80493e4ce5d11f702471719e4be1e60137..0000000000000000000000000000000000000000
--- a/conversations/conv_045864.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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-}
\ No newline at end of file
diff --git a/conversations/conv_045868.json b/conversations/conv_045868.json
deleted file mode 100644
index 73d745d66ca9a2c9ec4fa95481f78d4c5ee06c85..0000000000000000000000000000000000000000
--- a/conversations/conv_045868.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "duration": 1.4,
-      "start_time": 7.358042716438221,
-      "speaker_id": "639"
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-      "event_class": "cough",
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-      "start_time": 20.287141929734442,
-      "speaker_id": "639"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045872.json b/conversations/conv_045872.json
deleted file mode 100644
index 0d66d5c76f3c25659de8bdea15ddee7e137f67fe..0000000000000000000000000000000000000000
--- a/conversations/conv_045872.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.305369370210123,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.651064918218361,
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-      "overlap": false,
-      "utterance_id": "3347-134425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3347-134425.flac |",
-      "real_speaker_id": "3347",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.42893526929787,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300234.flac |",
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-      "position_frames": 0
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-      "utterance_id": "3347-134425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3347-134425.flac |",
-      "real_speaker_id": "3347",
-      "position_frames": 58417
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.100027335827633,
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-      "duration": 4.931798291684614,
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-      "utterance_id": "8879-300234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300234.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 76564
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.378289559388303,
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-      "duration": 6.414551310799821,
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-      "utterance_id": "8879-300234",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300234.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 155472
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.543609075776427,
-      "end_time": 31.305369370210123,
-      "duration": 1.7617602944336959,
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-      "duration_frames": 28188,
-      "overlap": true,
-      "utterance_id": "3347-134420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3347-134420.flac |",
-      "real_speaker_id": "3347",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "3347"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045879.json b/conversations/conv_045879.json
deleted file mode 100644
index 27f61959c190d68ae46297aba81d6a995a99172e..0000000000000000000000000000000000000000
--- a/conversations/conv_045879.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "2834-132497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2834-132497.flac |",
-      "real_speaker_id": "2834",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2834-132496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2834-132496.flac |",
-      "real_speaker_id": "2834",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.226215219303477,
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-      "duration": 1.7737847806965235,
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-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 100505
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-      "speaker_id": "1863"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045880.json b/conversations/conv_045880.json
deleted file mode 100644
index b1e9947f018ce2f45bc3594d95ba22c9b7a46df2..0000000000000000000000000000000000000000
--- a/conversations/conv_045880.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.049314696900264,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-161714.flac |",
-      "real_speaker_id": "2294",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166423.flac |",
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-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_045887.json b/conversations/conv_045887.json
deleted file mode 100644
index a2c932d99dbdf4c3d453c384b9d504ce5626788f..0000000000000000000000000000000000000000
--- a/conversations/conv_045887.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-80189.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-80189.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6276-76103.flac |",
-      "real_speaker_id": "6276",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "2512-157480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2512-157480.flac |",
-      "real_speaker_id": "2512",
-      "position_frames": 61038
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_0.wav",
-      "duration": 0.22993197278911565,
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 8.946523865529713,
-      "speaker_id": "4519"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045891.json b/conversations/conv_045891.json
deleted file mode 100644
index cb8921e465bd48391a26031b422a063dce73734b..0000000000000000000000000000000000000000
--- a/conversations/conv_045891.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.648681071347042,
-      "duration": 4.648681071347042,
-      "start_frame": 0,
-      "duration_frames": 74378,
-      "overlap": false,
-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.059504302536666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-50883.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "3790-140725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.94042611158989,
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-      "overlap": false,
-      "utterance_id": "7848-275129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275129.flac |",
-      "real_speaker_id": "7848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.925724136864197,
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-      "duration": 5.125322609666544,
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-      "duration_frames": 82005,
-      "overlap": false,
-      "utterance_id": "5825-50883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-50883.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 104136
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.302412503545217,
-      "end_time": 32.0,
-      "duration": 2.6975874964547835,
-      "start_frame": 468838,
-      "duration_frames": 43161,
-      "overlap": false,
-      "utterance_id": "7848-275149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7848-275149.flac |",
-      "real_speaker_id": "7848",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5825/laugh/0122.wav",
-      "duration": 1.12,
-      "start_time": 3.847115937552691,
-      "speaker_id": "5825"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/cough/0068.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7848/laugh/0000.wav",
-      "duration": 1.6,
-      "start_time": 29.87319983474483,
-      "speaker_id": "7848"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045896.json b/conversations/conv_045896.json
deleted file mode 100644
index 06d0f9b4bf2701d9662205e6c938db0a84db163b..0000000000000000000000000000000000000000
--- a/conversations/conv_045896.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3257-169288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169288.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.748863949525404,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171001.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
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-      "utterance_id": "4009-43910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4009-43910.flac |",
-      "real_speaker_id": "4009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.251695431801178,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169288.flac |",
-      "real_speaker_id": "3257",
-      "position_frames": 66961
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "2943-171000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171000.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.29258220015857,
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-      "overlap": false,
-      "utterance_id": "4009-43903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4009-43903.flac |",
-      "real_speaker_id": "4009",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 13.11653800189833,
-      "speaker_id": "4009"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_045901.json b/conversations/conv_045901.json
deleted file mode 100644
index 5ae3a1ebba902820d3626935108e108c7679a9c1..0000000000000000000000000000000000000000
--- a/conversations/conv_045901.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.528850906252355,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_frame": 0,
-      "duration_frames": 65782,
-      "overlap": false,
-      "utterance_id": "1152-126549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126549.flac |",
-      "real_speaker_id": "1152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126549.flac |",
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-      "utterance_id": "8619-291381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291381.flac |",
-      "real_speaker_id": "8619",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-      "start_time": 28.337658440139183,
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-      "overlap": true,
-      "utterance_id": "8619-291374",
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-      "position_frames": 0
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-  ],
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8619/laugh/0119.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1152/cough/0094.wav",
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-      "speaker_id": "1152"
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-}
\ No newline at end of file
diff --git a/conversations/conv_045916.json b/conversations/conv_045916.json
deleted file mode 100644
index 1d71bd9d9e332524d57481440f4c05af80b74529..0000000000000000000000000000000000000000
--- a/conversations/conv_045916.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4034-5706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-5706.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-14942.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045917.json b/conversations/conv_045917.json
deleted file mode 100644
index e8637f71d72236e0d84fc24843a782fdb4e7adac..0000000000000000000000000000000000000000
--- a/conversations/conv_045917.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.76938140785086,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 0
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-      "position_frames": 0
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-      "utterance_id": "1773-145712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145712.flac |",
-      "real_speaker_id": "1773",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.246214061233324,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 73681
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.426161911265922,
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-      "utterance_id": "1773-139602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-139602.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.206016798143636,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6284-63091.flac |",
-      "real_speaker_id": "6284",
-      "position_frames": 159683
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\ No newline at end of file
diff --git a/conversations/conv_045921.json b/conversations/conv_045921.json
deleted file mode 100644
index 64f0d70127ad65fdc3c9a0eb8d030b5515e94827..0000000000000000000000000000000000000000
--- a/conversations/conv_045921.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.274527967860188,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "position_frames": 0
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-      "real_speaker_id": "4930",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "8799",
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\ No newline at end of file
diff --git a/conversations/conv_045937.json b/conversations/conv_045937.json
deleted file mode 100644
index 897581709a083420074609a6d3795611ba3ff490..0000000000000000000000000000000000000000
--- a/conversations/conv_045937.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 0
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-      "real_speaker_id": "3493",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
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-      "utterance_id": "8262-279161",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_045940.json b/conversations/conv_045940.json
deleted file mode 100644
index 817e1979516a22df37a463dfc5f4d65f48a544d4..0000000000000000000000000000000000000000
--- a/conversations/conv_045940.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.28612492095183,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_045941.json b/conversations/conv_045941.json
deleted file mode 100644
index 5a6b6b34927e00e51cf216a5a61084b11b0301b0..0000000000000000000000000000000000000000
--- a/conversations/conv_045941.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.575818370469182,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1777-142745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142745.flac |",
-      "real_speaker_id": "1777",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142750.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 100356
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-      "segment_id": "seg0005",
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-      "duration": 3.552457231042272,
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-      "utterance_id": "8006-112592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
-      "real_speaker_id": "8006",
-      "position_frames": 214719
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_045951.json b/conversations/conv_045951.json
deleted file mode 100644
index fd5d4de6472cd4bbe0fb8f92b1b442ca4f158dee..0000000000000000000000000000000000000000
--- a/conversations/conv_045951.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_045956.json b/conversations/conv_045956.json
deleted file mode 100644
index 0ecd779ba36c21641e3adeee5041223da8d2cdc9..0000000000000000000000000000000000000000
--- a/conversations/conv_045956.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8500",
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\ No newline at end of file
diff --git a/conversations/conv_045960.json b/conversations/conv_045960.json
deleted file mode 100644
index a032b3f55489b031b5ad5fb7b2e3c887e0ac4978..0000000000000000000000000000000000000000
--- a/conversations/conv_045960.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_045976.json b/conversations/conv_045976.json
deleted file mode 100644
index c2464a24f28616eff735f6076a146a2a8d883458..0000000000000000000000000000000000000000
--- a/conversations/conv_045976.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.878816649531693,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32637.flac |",
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-      "real_speaker_id": "6963",
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-      "position_frames": 98278
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-      "real_speaker_id": "6594",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_045983.json b/conversations/conv_045983.json
deleted file mode 100644
index 12296326295d6f7322d021abf6d9c69a1e47fa9a..0000000000000000000000000000000000000000
--- a/conversations/conv_045983.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "4594",
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-      "position_frames": 216221
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_045984.json b/conversations/conv_045984.json
deleted file mode 100644
index 5a6899a7c431023296208e2117d47766587c31c3..0000000000000000000000000000000000000000
--- a/conversations/conv_045984.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "557",
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_045992.json b/conversations/conv_045992.json
deleted file mode 100644
index 1973719b4d04fc242037209122b8c7515a0d8ae7..0000000000000000000000000000000000000000
--- a/conversations/conv_045992.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "2552",
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5082/cough/0046.wav",
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-      "speaker_id": "1084"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_045995.json b/conversations/conv_045995.json
deleted file mode 100644
index 812eec03f284d2a2fd6a0626ffc223bd590dfe4d..0000000000000000000000000000000000000000
--- a/conversations/conv_045995.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2588-160947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-160947.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.170232588937714,
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-      "utterance_id": "831-130739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.630789146368162,
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-      "utterance_id": "2588-11081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-11081.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.051009136819545,
-      "end_time": 25.022950108562927,
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.02726948267193,
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-      "utterance_id": "2588-160947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-160947.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 96134
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 5657,
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-      "utterance_id": "831-130746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130746.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_045999.json b/conversations/conv_045999.json
deleted file mode 100644
index 5316500d69d5883ab9fd8daa95f10671761b8805..0000000000000000000000000000000000000000
--- a/conversations/conv_045999.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "4898",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
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-      "real_speaker_id": "4719",
-      "position_frames": 108848
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "4898-28461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-28461.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.27638284891335,
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-      "utterance_id": "4719-25766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25766.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_046004.json b/conversations/conv_046004.json
deleted file mode 100644
index 05d9c0d1196885dadc2dce780ad034a75d164d00..0000000000000000000000000000000000000000
--- a/conversations/conv_046004.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.079806317419532,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1665-136991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.507592440839759,
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-      "utterance_id": "1646-121409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121409.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1665-132826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-132826.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1665-132826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-132826.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 76842
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1646-121406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121406.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.699267433806746,
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-      "overlap": true,
-      "utterance_id": "1665-136991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 51070
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121406.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 101149
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046005.json b/conversations/conv_046005.json
deleted file mode 100644
index 5a0099e014b8d7c635a6b6fcd196c4749899befe..0000000000000000000000000000000000000000
--- a/conversations/conv_046005.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.790169420377254,
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-      "utterance_id": "8295-281321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-281321.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8295-296107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-296107.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "2003-143255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143255.flac |",
-      "real_speaker_id": "2003",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2003/laugh/0003.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8295/laugh/0087.wav",
-      "duration": 1.28,
-      "start_time": 27.3549230338604,
-      "speaker_id": "8295"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046008.json b/conversations/conv_046008.json
deleted file mode 100644
index 9990927a61ebeda9590f37318fbed89f2bf30df9..0000000000000000000000000000000000000000
--- a/conversations/conv_046008.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.4777093500413,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 6.055139705456773,
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-      "utterance_id": "3679-159362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159362.flac |",
-      "real_speaker_id": "3679",
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-      "start_time": 10.466006007951101,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 14.128334530695188,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3679-159362.flac |",
-      "real_speaker_id": "3679",
-      "position_frames": 64133
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
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-      "position_frames": 90512
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 53561
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_046012.json b/conversations/conv_046012.json
deleted file mode 100644
index fa190cf2c27cc7c855d5004822499b59a8e68e5c..0000000000000000000000000000000000000000
--- a/conversations/conv_046012.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19188.flac |",
-      "real_speaker_id": "4640",
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-      "utterance_id": "4640-19188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19188.flac |",
-      "real_speaker_id": "4640",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-53497.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1487-133273",
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-      "real_speaker_id": "1487",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 31.143130911977156,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5826-53496.flac |",
-      "real_speaker_id": "5826",
-      "position_frames": 88341
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_046024.json b/conversations/conv_046024.json
deleted file mode 100644
index c2a39ec137ec80a34a54ef67de8efcb044c36868..0000000000000000000000000000000000000000
--- a/conversations/conv_046024.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-91994.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "3215-5757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5757.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3180-138043.flac |",
-      "real_speaker_id": "3180",
-      "position_frames": 88673
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5933-73033",
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-      "real_speaker_id": "5933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.76459511659756,
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-      "utterance_id": "3180-138043",
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-      "real_speaker_id": "3180",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_046028.json b/conversations/conv_046028.json
deleted file mode 100644
index d9fa223f6b43584f85eb377aa6ee69118742ab38..0000000000000000000000000000000000000000
--- a/conversations/conv_046028.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8245-274392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-274392.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5561-41616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-41616.flac |",
-      "real_speaker_id": "5561",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-283126.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 154375
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "event_class": "Frying",
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 19.98846454522008,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5561/laugh/0020.wav",
-      "duration": 1.2,
-      "start_time": 21.913554335626426,
-      "speaker_id": "5561"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046029.json b/conversations/conv_046029.json
deleted file mode 100644
index e8fefdc08b0ced543ca548a50b53fafced2688e5..0000000000000000000000000000000000000000
--- a/conversations/conv_046029.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.3400916700230936,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127193.flac |",
-      "real_speaker_id": "766",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 52685
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-      "segment_id": "seg0003",
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-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 109721
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.614108764452745,
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-      "duration_frames": 64452,
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-      "utterance_id": "6705-74243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74243.flac |",
-      "real_speaker_id": "6705",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6705-74244.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_046032.json b/conversations/conv_046032.json
deleted file mode 100644
index 2a0a5265c88f35f4bec5ef53d22463ca2d666d19..0000000000000000000000000000000000000000
--- a/conversations/conv_046032.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "4640-19188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19188.flac |",
-      "real_speaker_id": "4640",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-24628.flac |",
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-      "real_speaker_id": "4640",
-      "position_frames": 59754
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-      "segment_id": "seg0003",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19189.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
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-      "utterance_id": "4640-19187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19187.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046039.json b/conversations/conv_046039.json
deleted file mode 100644
index 9cc8f7859884f38ac75d23583bcb026e1f7ff920..0000000000000000000000000000000000000000
--- a/conversations/conv_046039.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "6215-62347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-62347.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126959.flac |",
-      "real_speaker_id": "548",
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-    {
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "548",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046045.json b/conversations/conv_046045.json
deleted file mode 100644
index 0a7fa8c40d6c2bce6ba407960665ebd83821abb2..0000000000000000000000000000000000000000
--- a/conversations/conv_046045.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7538-100044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100044.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6324",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100044.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 31.18059829394176,
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-      "duration": 0.8194017060582404,
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-      "utterance_id": "475-124999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/475-124999.flac |",
-      "real_speaker_id": "475",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "duration": 1.64,
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "475"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_046049.json b/conversations/conv_046049.json
deleted file mode 100644
index 8d562de2d3950bed194b8a95862f8479ab4c5f5a..0000000000000000000000000000000000000000
--- a/conversations/conv_046049.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1088-134318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134318.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.927421978689525,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-130501.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1088-134315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134315.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.634863761909745,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24747.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.735022084135505,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1636-141789.flac |",
-      "real_speaker_id": "1636",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-129236.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046052.json b/conversations/conv_046052.json
deleted file mode 100644
index ab874f81c38e02d3cab22122e4bb255da091619c..0000000000000000000000000000000000000000
--- a/conversations/conv_046052.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.37915762747879,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258258.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 17.578671524976684,
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-      "real_speaker_id": "8824",
-      "position_frames": 75185
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "8422-258259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046053.json b/conversations/conv_046053.json
deleted file mode 100644
index 6fe4c1ec9f590afe5f3da9a0838df99bdb395b3b..0000000000000000000000000000000000000000
--- a/conversations/conv_046053.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "724-123285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123285.flac |",
-      "real_speaker_id": "724",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
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-      "utterance_id": "724-123283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123283.flac |",
-      "real_speaker_id": "724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "utterance_id": "6818-76332",
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-      "real_speaker_id": "6818",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "start_time": 30.76,
-      "speaker_id": "6818"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046065.json b/conversations/conv_046065.json
deleted file mode 100644
index bbff033dae71972be4f617146c648278b7aadfd3..0000000000000000000000000000000000000000
--- a/conversations/conv_046065.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3289-171109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171109.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.069887514240819,
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-      "real_speaker_id": "3289",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "2526-156098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156098.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3289-171107.flac |",
-      "real_speaker_id": "3289",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "start_time": 26.48655163985112,
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-      "real_speaker_id": "4705",
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-  "foreground_events": [
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-      "speaker_id": "4705"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046069.json b/conversations/conv_046069.json
deleted file mode 100644
index 3c8328a9fa4a2a51c791215f4c11455bc7cafb84..0000000000000000000000000000000000000000
--- a/conversations/conv_046069.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.593200312899224,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4161-185349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4161-185349.flac |",
-      "real_speaker_id": "4161",
-      "position_frames": 79609
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-      "speaker_id": 1,
-      "start_time": 18.940348411606728,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
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-      "position_frames": 78633
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-102849.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.72291240400668,
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-      "utterance_id": "7026-86943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86943.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046073.json b/conversations/conv_046073.json
deleted file mode 100644
index c9d071df48fa35131288ee7fa2cf1d05446c44c7..0000000000000000000000000000000000000000
--- a/conversations/conv_046073.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7665-104979.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154885.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2356-154880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154880.flac |",
-      "real_speaker_id": "2356",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046078.json b/conversations/conv_046078.json
deleted file mode 100644
index 9537a47e0ebaecd5008aae04a3b98bdfd065833b..0000000000000000000000000000000000000000
--- a/conversations/conv_046078.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2823-160964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160964.flac |",
-      "real_speaker_id": "2823",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125941.flac |",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046081.json b/conversations/conv_046081.json
deleted file mode 100644
index 0a0a16f338d1c3673b88a77ef27ae19f009962b5..0000000000000000000000000000000000000000
--- a/conversations/conv_046081.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-105383.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 182916
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "speaker_id": "7448"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046086.json b/conversations/conv_046086.json
deleted file mode 100644
index 4cbea64433ee884e0cf8bf9d219bf950b85f446c..0000000000000000000000000000000000000000
--- a/conversations/conv_046086.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.04876997521386,
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-      "utterance_id": "7408-255943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-255943.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154907.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-255943.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 64780
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154885.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7447-91187.flac |",
-      "real_speaker_id": "7447",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7408-256039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-256039.flac |",
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_046090.json b/conversations/conv_046090.json
deleted file mode 100644
index a1a75feb4f3c327170f2d208f9378ad56c98565f..0000000000000000000000000000000000000000
--- a/conversations/conv_046090.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39913.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "6696",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39913.flac |",
-      "real_speaker_id": "4071",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 87610
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "position_frames": 72985
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Blender",
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-    {
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-      "start_time": 28.196765388456512,
-      "speaker_id": "228"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046097.json b/conversations/conv_046097.json
deleted file mode 100644
index 41038cca21da61792fec38c91fb19ec54b1eb389..0000000000000000000000000000000000000000
--- a/conversations/conv_046097.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3792-176660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-130578.flac |",
-      "real_speaker_id": "911",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "911",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3792-176660",
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-      "real_speaker_id": "3792",
-      "position_frames": 195434
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/911-130578.flac |",
-      "real_speaker_id": "911",
-      "position_frames": 143887
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_046100.json b/conversations/conv_046100.json
deleted file mode 100644
index c19b6a456dc4990164580e2c6ea3757b10543acd..0000000000000000000000000000000000000000
--- a/conversations/conv_046100.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-298838.flac |",
-      "real_speaker_id": "6248",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61803.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "6248",
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-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "start_time": 0,
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-      "event_class": "cough",
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-      "speaker_id": "6248"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046116.json b/conversations/conv_046116.json
deleted file mode 100644
index cc6b450f41404d1649b53860a46f42941ec13768..0000000000000000000000000000000000000000
--- a/conversations/conv_046116.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.49551891778439,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "112-123215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/112-123215.flac |",
-      "real_speaker_id": "112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.019339287322902,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/985-126228.flac |",
-      "real_speaker_id": "985",
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-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.129960486606981,
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-      "utterance_id": "985-126224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/985-126224.flac |",
-      "real_speaker_id": "985",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.675281157280192,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 67474
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "985-126228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/985-126228.flac |",
-      "real_speaker_id": "985",
-      "position_frames": 73707
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046117.json b/conversations/conv_046117.json
deleted file mode 100644
index f497136a11d36b74ab14cfa4f672079b4722de65..0000000000000000000000000000000000000000
--- a/conversations/conv_046117.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276735.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276735.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 72979
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 65312
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8786-276735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276735.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 152845
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "505-125272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125272.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "duration": 1.2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_046120.json b/conversations/conv_046120.json
deleted file mode 100644
index 6cd5e14c27f5b498bd73b8c7c90a577cf2438373..0000000000000000000000000000000000000000
--- a/conversations/conv_046120.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.234331301715176,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "561-126312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126312.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "5993",
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-    {
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-    {
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-      "segment_id": "seg0005",
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-      "position_frames": 82312
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_046136.json b/conversations/conv_046136.json
deleted file mode 100644
index 155ab0f96c4fd15086ee10ffb820ff4feb190202..0000000000000000000000000000000000000000
--- a/conversations/conv_046136.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
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\ No newline at end of file
diff --git a/conversations/conv_046140.json b/conversations/conv_046140.json
deleted file mode 100644
index 0fb51471ac56a997716ce9da674c8709365bda3b..0000000000000000000000000000000000000000
--- a/conversations/conv_046140.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_046141.json b/conversations/conv_046141.json
deleted file mode 100644
index 7c2bd4c406748144d4183993b99ee1231282ef98..0000000000000000000000000000000000000000
--- a/conversations/conv_046141.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_046157.json b/conversations/conv_046157.json
deleted file mode 100644
index df520de86387c51a09624e11d7694bd871a56bd2..0000000000000000000000000000000000000000
--- a/conversations/conv_046157.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "real_speaker_id": "596",
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-  "foreground_events": [
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-      "duration": 1.32,
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-      "event_class": "cough",
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-      "speaker_id": "596"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046161.json b/conversations/conv_046161.json
deleted file mode 100644
index 20c1dd83f8ece606bbbb8e2ea9601c6828c691d6..0000000000000000000000000000000000000000
--- a/conversations/conv_046161.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "500-125123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.144777917512984,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
-      "real_speaker_id": "6846",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.618261792091541,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 75826
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "500-125123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 78732
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6846-76681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6846-76681.flac |",
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-      "position_frames": 78339
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
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-      "speaker_id": "6846"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046177.json b/conversations/conv_046177.json
deleted file mode 100644
index fcef57dc70493bacba9e95d01c30fa23af3f2146..0000000000000000000000000000000000000000
--- a/conversations/conv_046177.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3482-170453.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3482-170453.flac |",
-      "real_speaker_id": "3482",
-      "position_frames": 71954
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 69815
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.021930228374572,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046182.json b/conversations/conv_046182.json
deleted file mode 100644
index 7ae116b8b6d95fb81807779085242cca239e0ddf..0000000000000000000000000000000000000000
--- a/conversations/conv_046182.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154736.flac |",
-      "real_speaker_id": "2427",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
-      "real_speaker_id": "9022",
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-    {
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.538146079690875,
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-      "utterance_id": "8705-290363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
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-      "segment_id": "seg0005",
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-      "utterance_id": "2427-154697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154697.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_046183.json b/conversations/conv_046183.json
deleted file mode 100644
index 6a8d7193312534bc1f3de1d16ba2847f0fc6fe37..0000000000000000000000000000000000000000
--- a/conversations/conv_046183.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3389-130127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-130127.flac |",
-      "real_speaker_id": "3389",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3389",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3370/laugh/0090.wav",
-      "duration": 1.26,
-      "start_time": 21.883707194637886,
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-    {
-      "event_class": "cough",
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-      "duration": 0.5980071644448506,
-      "start_time": 26.66805633536215,
-      "speaker_id": "3370"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046185.json b/conversations/conv_046185.json
deleted file mode 100644
index efcfd9bab43ba13ee18cc6f92a46d469d2c5372a..0000000000000000000000000000000000000000
--- a/conversations/conv_046185.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.30135443913205,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5386-8684",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-8684.flac |",
-      "real_speaker_id": "5386",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.6462019064422,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-134615.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 13.289042449424855,
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-      "overlap": false,
-      "utterance_id": "4039-184265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184265.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.632187661433935,
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-      "overlap": false,
-      "utterance_id": "3641-134615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-134615.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 98575
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.800326927936805,
-      "end_time": 30.770361976385395,
-      "duration": 5.97003504844859,
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-      "overlap": true,
-      "utterance_id": "4039-184264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4039-184264.flac |",
-      "real_speaker_id": "4039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.571609947983042,
-      "end_time": 31.30135443913205,
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-      "duration_frames": 11675,
-      "overlap": true,
-      "utterance_id": "5386-28384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5386-28384.flac |",
-      "real_speaker_id": "5386",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "duration": 1.2,
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5386/laugh/0003.wav",
-      "duration": 1.1898582462146658,
-      "start_time": 29.18042282970822,
-      "speaker_id": "5386"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046193.json b/conversations/conv_046193.json
deleted file mode 100644
index d07606a268d91c231cd35f1c5652066216c1bec5..0000000000000000000000000000000000000000
--- a/conversations/conv_046193.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7120-76055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-122594.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-122594.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 86900
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70975.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.99562371906996,
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-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.08705744443263,
-      "end_time": 32.0,
-      "duration": 3.912942555567369,
-      "start_frame": 449392,
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-      "overlap": false,
-      "utterance_id": "265-136853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-136853.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "7120"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046194.json b/conversations/conv_046194.json
deleted file mode 100644
index 4d167da6400a143ca0e1fe7c1e176dc71bd994fa..0000000000000000000000000000000000000000
--- a/conversations/conv_046194.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "5054-1187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-1187.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "6567-53342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-1187.flac |",
-      "real_speaker_id": "5054",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "6567",
-      "position_frames": 76203
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "real_speaker_id": "5054",
-      "position_frames": 105779
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046198.json b/conversations/conv_046198.json
deleted file mode 100644
index b397b00b28f85176265ed0fbe845d7ea8f2ce1f6..0000000000000000000000000000000000000000
--- a/conversations/conv_046198.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2411-132532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2411-132530",
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-      "position_frames": 84234
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.26897986716755,
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-      "duration": 2.7310201328324517,
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-      "utterance_id": "2499-156155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156155.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 84684
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-      "start_time": 26.904837897648925,
-      "speaker_id": "2411"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046202.json b/conversations/conv_046202.json
deleted file mode 100644
index 3a66b0ff1bd378983863d0e6dd5803bc6cd78311..0000000000000000000000000000000000000000
--- a/conversations/conv_046202.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7525-92915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-92915.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.781126795279259,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 17.843885673964458,
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.221493000432076,
-      "end_time": 27.512704629647338,
-      "duration": 4.291211629215262,
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-      "overlap": false,
-      "utterance_id": "4973-44575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4973-44575.flac |",
-      "real_speaker_id": "4973",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.696412986808607,
-      "end_time": 32.0,
-      "duration": 3.303587013191393,
-      "start_frame": 459142,
-      "duration_frames": 52857,
-      "overlap": false,
-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 75889
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_13.wav",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7525/laugh/0035.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4973/laugh/0085.wav",
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-      "speaker_id": "4973"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046205.json b/conversations/conv_046205.json
deleted file mode 100644
index 0506cc0596c1efc300fded7746786d5b3d1aebb8..0000000000000000000000000000000000000000
--- a/conversations/conv_046205.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "3503-127082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127082.flac |",
-      "real_speaker_id": "3503",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.610110890989785,
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-      "utterance_id": "7392-105664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-105664.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.34071954632121,
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-      "utterance_id": "3503-127082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127082.flac |",
-      "real_speaker_id": "3503",
-      "position_frames": 64692
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.924171513587865,
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-      "utterance_id": "7392-105672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-105672.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.743218112669314,
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-      "duration": 4.011179953116899,
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-      "duration_frames": 64178,
-      "overlap": false,
-      "utterance_id": "3503-127082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127082.flac |",
-      "real_speaker_id": "3503",
-      "position_frames": 123569
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.574220758871864,
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-      "overlap": true,
-      "utterance_id": "7392-94500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-94500.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.683231872680324,
-      "end_time": 32.0,
-      "duration": 1.3167681273196763,
-      "start_frame": 490931,
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-      "overlap": false,
-      "utterance_id": "3928-153301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3928-153301.flac |",
-      "real_speaker_id": "3928",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3503/laugh/0000.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 0.5828432738726457,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3503/laugh/0012.wav",
-      "duration": 1.2,
-      "start_time": 25.90133230253098,
-      "speaker_id": "3503"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.16010554900038,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3928/laugh/0061.wav",
-      "duration": 0.8540459597377735,
-      "start_time": 31.145954040262225,
-      "speaker_id": "3928"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046209.json b/conversations/conv_046209.json
deleted file mode 100644
index 8b7b5e551ce587faa74eb72f99e9ba423b03faf9..0000000000000000000000000000000000000000
--- a/conversations/conv_046209.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.71108086076825,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.487073040772522,
-      "duration": 5.487073040772522,
-      "start_frame": 0,
-      "duration_frames": 87793,
-      "overlap": false,
-      "utterance_id": "1226-141270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141270.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.203281509334679,
-      "end_time": 11.90371453151527,
-      "duration": 5.700433022180592,
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-      "overlap": false,
-      "utterance_id": "4771-6409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-6409.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 94959,
-      "overlap": true,
-      "utterance_id": "1226-141279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.54025121343898,
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-      "utterance_id": "1353-122456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-122456.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.16340147591631,
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-      "overlap": true,
-      "utterance_id": "1353-122456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-122456.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 64344
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.313997435659545,
-      "end_time": 31.71108086076825,
-      "duration": 1.397083425108704,
-      "start_frame": 485023,
-      "duration_frames": 22353,
-      "overlap": true,
-      "utterance_id": "1226-141270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141270.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 87793
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
-      "duration": 3.2816172922670717,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4771/laugh/0103.wav",
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-      "start_time": 4.693714301675969,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1226/cough/0023.wav",
-      "duration": 0.6079818248638338,
-      "start_time": 11.53811756693036,
-      "speaker_id": "1226"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1353/cough/0128.wav",
-      "duration": 0.6149745759900083,
-      "start_time": 23.614271879160302,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1353/cough/0054.wav",
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-      "start_time": 28.996296810437606,
-      "speaker_id": "1353"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046213.json b/conversations/conv_046213.json
deleted file mode 100644
index b71f4e4b2c44bc18bdaa0cd3a9131847f1d04583..0000000000000000000000000000000000000000
--- a/conversations/conv_046213.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "duration": 4.71151302565502,
-      "start_frame": 0,
-      "duration_frames": 75384,
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-      "utterance_id": "127-129390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "3135-166688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3135-166688.flac |",
-      "real_speaker_id": "3135",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.466397802757896,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
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-      "real_speaker_id": "3135",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "127-129385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 30.844432741728117,
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-      "duration": 1.1555672582718834,
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-      "utterance_id": "3135-166688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3135-166688.flac |",
-      "real_speaker_id": "3135",
-      "position_frames": 173747
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
-      "duration": 24.969727891156463,
-      "start_time": 1.0161474185194896
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_9.wav",
-      "duration": 0.623968253968254,
-      "start_time": 0.08838960405788128
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
-      "duration": 0.35356009070294786,
-      "start_time": 7.5653686547698085
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/127/laugh/0085.wav",
-      "duration": 1.5,
-      "start_time": 4.737494757894912,
-      "speaker_id": "127"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3135/laugh/0016.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/127/laugh/0091.wav",
-      "duration": 1.14,
-      "start_time": 16.709858461501415,
-      "speaker_id": "127"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3135/laugh/0076.wav",
-      "duration": 1.72,
-      "start_time": 23.693578260509273,
-      "speaker_id": "3135"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3135/laugh/0105.wav",
-      "duration": 1.0954029518245494,
-      "start_time": 29.5336053957687,
-      "speaker_id": "3135"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046214.json b/conversations/conv_046214.json
deleted file mode 100644
index 2fe98d1dd99ff284d9bca3ea59c14eeb3e3c8fcb..0000000000000000000000000000000000000000
--- a/conversations/conv_046214.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.628104920723857,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7000-83706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83706.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.683243958510546,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-73961.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7000-83708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83708.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.856947203313453,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6356-271890.flac |",
-      "real_speaker_id": "6356",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.39186551700709,
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-      "utterance_id": "7000-83708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83708.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 65360
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7342-254918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-254918.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7000/laugh/0068.wav",
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "7342"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046225.json b/conversations/conv_046225.json
deleted file mode 100644
index 11ae2dd63de1f2e059cb1c2e7d5e3e3e6d59c8c0..0000000000000000000000000000000000000000
--- a/conversations/conv_046225.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.55385032350585,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "2448-163517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163517.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135068.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163517.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 72575
-    },
-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.174719867928296,
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-      "utterance_id": "2448-163521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163521.flac |",
-      "real_speaker_id": "2448",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135067.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.818204112741313,
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-      "duration": 0.7356462107645356,
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-      "duration_frames": 11770,
-      "overlap": true,
-      "utterance_id": "2448-163521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163521.flac |",
-      "real_speaker_id": "2448",
-      "position_frames": 67585
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2448/laugh/0066.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2448/cough/0100.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2448/laugh/0061.wav",
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-      "speaker_id": "2448"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046229.json b/conversations/conv_046229.json
deleted file mode 100644
index 1ef3b6dabd242d87beb8105de294695499993f6e..0000000000000000000000000000000000000000
--- a/conversations/conv_046229.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
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-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
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-    {
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-    {
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-      "position_frames": 65480
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-    {
-      "segment_id": "seg0006",
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-      "real_speaker_id": "6853",
-      "position_frames": 199359
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-      "duration": 0.7440324619826573,
-      "start_time": 0,
-      "speaker_id": "6853"
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-    {
-      "event_class": "cough",
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-      "duration": 0.654741956599628,
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-      "speaker_id": "1124"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1124/laugh/0005.wav",
-      "duration": 1.28,
-      "start_time": 24.062541992195595,
-      "speaker_id": "1124"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046233.json b/conversations/conv_046233.json
deleted file mode 100644
index 90239a4ef7d4c78840bb33f4f742f233abea8868..0000000000000000000000000000000000000000
--- a/conversations/conv_046233.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2499-156155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156155.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.157782041192834,
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-      "duration": 6.599884081175935,
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-      "utterance_id": "4379-18040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18040.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 14.0453409057745,
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-      "overlap": true,
-      "utterance_id": "2499-156155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156155.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 110284
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.573154350237026,
-      "end_time": 22.132322961872315,
-      "duration": 4.55916861163529,
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-      "overlap": true,
-      "utterance_id": "6300-39661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.565880103328332,
-      "end_time": 27.424499066809773,
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-      "utterance_id": "4379-190740",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-190740.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.41465201341583,
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-      "utterance_id": "2499-156153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156153.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2499/laugh/0076.wav",
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-      "start_time": 1.1377399058487883,
-      "speaker_id": "2499"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046243.json b/conversations/conv_046243.json
deleted file mode 100644
index 661fd8efad7c59e9aeab909128dca83876d3bd84..0000000000000000000000000000000000000000
--- a/conversations/conv_046243.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.26577139521838,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3982-182255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-182255.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-178459.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 19.292896783158646,
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-      "utterance_id": "3982-182255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-182255.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 70849
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3982-182255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-182255.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 159572
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 20993,
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-      "utterance_id": "3982-182255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-182255.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 226311
-    }
-  ],
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_046244.json b/conversations/conv_046244.json
deleted file mode 100644
index 5c8482eff9dc26e379889fa82dccb2924b31c8b3..0000000000000000000000000000000000000000
--- a/conversations/conv_046244.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.766178048710636,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1851-148962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-1150.flac |",
-      "real_speaker_id": "3361",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "real_speaker_id": "1851",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6818-68772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148962.flac |",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_046248.json b/conversations/conv_046248.json
deleted file mode 100644
index 439df60ab12e74eae7f7428c48264526d6c639bc..0000000000000000000000000000000000000000
--- a/conversations/conv_046248.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "1107-133254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133254.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
-      "duration": 1.5667958357886058,
-      "start_time": 15.114550710039804
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
-      "duration": 0.254421768707483,
-      "start_time": 3.8369278997036202
-    }
-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1107/laugh/0019.wav",
-      "duration": 1.2936385104212382,
-      "start_time": 15.176688772309989,
-      "speaker_id": "1107"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6014/laugh/0073.wav",
-      "duration": 0.9495232315980511,
-      "start_time": 27.948935978780472,
-      "speaker_id": "6014"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046252.json b/conversations/conv_046252.json
deleted file mode 100644
index fc58d93c7f6b2fa6cd14279c75e01b0abb7aa701..0000000000000000000000000000000000000000
--- a/conversations/conv_046252.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.25625658164261,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7818264791568144,
-      "duration": 3.7818264791568144,
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-      "duration_frames": 60509,
-      "overlap": false,
-      "utterance_id": "978-125137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-125137.flac |",
-      "real_speaker_id": "978",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.3921001937771003,
-      "end_time": 6.500270726249616,
-      "duration": 3.108170532472516,
-      "start_frame": 54273,
-      "duration_frames": 49730,
-      "overlap": true,
-      "utterance_id": "3118-5912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5912.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.55245013845986,
-      "end_time": 12.835771300435,
-      "duration": 5.283321161975141,
-      "start_frame": 120839,
-      "duration_frames": 84533,
-      "overlap": false,
-      "utterance_id": "3118-5909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5909.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.081735341365963,
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-      "duration_frames": 79373,
-      "overlap": false,
-      "utterance_id": "3118-5909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5909.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 84533
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.506863249843544,
-      "end_time": 24.42690278288202,
-      "duration": 4.9200395330384765,
-      "start_frame": 312109,
-      "duration_frames": 78720,
-      "overlap": false,
-      "utterance_id": "3379-132601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132601.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.100375698897892,
-      "end_time": 29.38129850085487,
-      "duration": 4.280922801956979,
-      "start_frame": 401606,
-      "duration_frames": 68494,
-      "overlap": false,
-      "utterance_id": "3118-5911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5911.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.139462223671778,
-      "end_time": 31.25625658164261,
-      "duration": 2.116794357970832,
-      "start_frame": 466231,
-      "duration_frames": 33868,
-      "overlap": true,
-      "utterance_id": "3379-132601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132601.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 78720
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
-      "duration": 1.9862857901751751,
-      "start_time": 16.415158824550673
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3118/laugh/0067.wav",
-      "duration": 1.12,
-      "start_time": 2.0145242307066766,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3118/laugh/0099.wav",
-      "duration": 1.04,
-      "start_time": 12.982388887342742,
-      "speaker_id": "3118"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3118/cough/0080.wav",
-      "duration": 1.2712113594259389,
-      "start_time": 19.04866651587745,
-      "speaker_id": "3118"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3379/cough/0065.wav",
-      "duration": 0.38844862826363485,
-      "start_time": 18.969553424650638,
-      "speaker_id": "3379"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3379/laugh/0004.wav",
-      "duration": 0.994045961724846,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3379/cough/0026.wav",
-      "duration": 0.9673073128595853,
-      "start_time": 31.032692687140415,
-      "speaker_id": "3379"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046255.json b/conversations/conv_046255.json
deleted file mode 100644
index 98be84b5400197586b5ee6803257fc0bb4b16625..0000000000000000000000000000000000000000
--- a/conversations/conv_046255.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.439909856419952,
-      "duration": 4.439909856419952,
-      "start_frame": 0,
-      "duration_frames": 71038,
-      "overlap": false,
-      "utterance_id": "40-222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.826765171756385,
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-      "duration_frames": 88109,
-      "overlap": false,
-      "utterance_id": "956-127932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 108157,
-      "overlap": true,
-      "utterance_id": "6828-68770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.70598150766476,
-      "end_time": 23.483482413626497,
-      "duration": 4.777500905961738,
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-      "utterance_id": "40-121026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-121026.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.58960989834341,
-      "end_time": 27.603808863548508,
-      "duration": 4.014198965205095,
-      "start_frame": 377433,
-      "duration_frames": 64227,
-      "overlap": false,
-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.247185920970626,
-      "end_time": 32.0,
-      "duration": 3.752814079029374,
-      "start_frame": 451954,
-      "duration_frames": 60045,
-      "overlap": false,
-      "utterance_id": "956-127932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 88109
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
-      "duration": 0.24482993197278913,
-      "start_time": 18.451959235187083
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/40/laugh/0000.wav",
-      "duration": 0.5825101497574398,
-      "start_time": 0,
-      "speaker_id": "40"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/956/cough/0038.wav",
-      "duration": 0.4864049854548812,
-      "start_time": 10.432449764734821,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6828/cough/0012.wav",
-      "duration": 0.9721626864216995,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6828/laugh/0062.wav",
-      "duration": 1.2,
-      "start_time": 25.84778592664734,
-      "speaker_id": "6828"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046264.json b/conversations/conv_046264.json
deleted file mode 100644
index 991f52b8fc1d9992a1cf520d044314f4fc7b5ebb..0000000000000000000000000000000000000000
--- a/conversations/conv_046264.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.36700558778837,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.72130717855872,
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-      "overlap": true,
-      "utterance_id": "2133-289460",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-289460.flac |",
-      "real_speaker_id": "2133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 7.68272731138212,
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-      "start_frame": 122923,
-      "duration_frames": 53374,
-      "overlap": false,
-      "utterance_id": "2531-156720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156720.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 11.395438963287834,
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-      "overlap": false,
-      "utterance_id": "2133-2148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-2148.flac |",
-      "real_speaker_id": "2133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 16.039148036951996,
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-      "overlap": false,
-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 21.583639694810373,
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-      "duration": 4.379000917629054,
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-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 60622
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 26.009077308640894,
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-      "duration": 5.357928279147475,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2133-2148.flac |",
-      "real_speaker_id": "2133",
-      "position_frames": 63872
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-      "duration": 1.6,
-      "start_time": 6.073141579171197,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046268.json b/conversations/conv_046268.json
deleted file mode 100644
index ee4ac3ed898d246e3ea4a0dbfe32bb1b07f9ebc3..0000000000000000000000000000000000000000
--- a/conversations/conv_046268.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7387-279272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7387-279272.flac |",
-      "real_speaker_id": "7387",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.959811975384319,
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-      "utterance_id": "2522-147156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
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-      "position_frames": 93335
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
-      "position_frames": 192003
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7387-97901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7387-97901.flac |",
-      "real_speaker_id": "7387",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.058239776837247,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
-      "position_frames": 297302
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
-      "duration": 2.247641723356009,
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2522/laugh/0061.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2522/laugh/0013.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "2522"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046269.json b/conversations/conv_046269.json
deleted file mode 100644
index 0718022948f2297417bd684184711b5094c448e0..0000000000000000000000000000000000000000
--- a/conversations/conv_046269.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.495546560894302,
-      "duration": 4.495546560894302,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "664-129011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
-      "real_speaker_id": "664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.606778293345725,
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-      "utterance_id": "7699-105399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105399.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "613-121900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-121900.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.014822965035473,
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-      "utterance_id": "664-129011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
-      "real_speaker_id": "664",
-      "position_frames": 71928
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.733626859662095,
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-      "duration_frames": 92364,
-      "overlap": false,
-      "utterance_id": "7699-105389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105389.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.693768217251833,
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-      "duration": 4.208601324345575,
-      "start_frame": 427100,
-      "duration_frames": 67337,
-      "overlap": false,
-      "utterance_id": "7699-105399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105399.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 62328
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.605834017823003,
-      "end_time": 32.0,
-      "duration": 0.3941659821769967,
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-      "utterance_id": "664-129011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/664-129011.flac |",
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-      "position_frames": 156823
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/418508.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.24,
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-      "speaker_id": "7699"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046272.json b/conversations/conv_046272.json
deleted file mode 100644
index d41e184eb4127d8917b89d046267d1bbe396d1d3..0000000000000000000000000000000000000000
--- a/conversations/conv_046272.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105389.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "956-127929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127929.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.80583648727061,
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-      "utterance_id": "7699-105399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105399.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.065252559805344,
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-      "overlap": false,
-      "utterance_id": "7699-105389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105389.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 83557
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.08761227529095,
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-      "duration": 3.912387724709049,
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-      "duration_frames": 62598,
-      "overlap": false,
-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 87475
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7699/laugh/0086.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7699/laugh/0019.wav",
-      "duration": 1.28,
-      "start_time": 23.90222329755893,
-      "speaker_id": "7699"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4290/laugh/0102.wav",
-      "duration": 1.44,
-      "start_time": 26.514033662199658,
-      "speaker_id": "4290"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046287.json b/conversations/conv_046287.json
deleted file mode 100644
index 6ade3a014722c58c4231547bb18f1e07e0d33727..0000000000000000000000000000000000000000
--- a/conversations/conv_046287.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.605431930237926,
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-      "start_frame": 0,
-      "duration_frames": 73686,
-      "overlap": false,
-      "utterance_id": "5361-27491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5361-27491.flac |",
-      "real_speaker_id": "5361",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.185563574284504,
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-      "duration": 3.53483745896294,
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-      "overlap": false,
-      "utterance_id": "7433-89651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89651.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.97436621941187,
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-      "overlap": false,
-      "utterance_id": "5246-30101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-30101.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7433-89646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89646.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5246-5084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-5084.flac |",
-      "real_speaker_id": "5246",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.07635029495897,
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-      "utterance_id": "7433-89651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7433-89651.flac |",
-      "real_speaker_id": "7433",
-      "position_frames": 56557
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.258487807790413,
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-      "utterance_id": "5361-27492",
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-      "real_speaker_id": "5361",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7433/cough/0137.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5361/cough/0083.wav",
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-      "speaker_id": "5361"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046291.json b/conversations/conv_046291.json
deleted file mode 100644
index 377be94a26932bf8ac9af804fa74cd494249f778..0000000000000000000000000000000000000000
--- a/conversations/conv_046291.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.7534870143048797,
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-      "start_frame": 0,
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-      "utterance_id": "6014-32886",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32886.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7125",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32904.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 28.72138632657002,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/979-128670.flac |",
-      "real_speaker_id": "979",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046301.json b/conversations/conv_046301.json
deleted file mode 100644
index 2a7e7843f59728fb015f89ef75616c0195299f4d..0000000000000000000000000000000000000000
--- a/conversations/conv_046301.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8466-285142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.719976102158064,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 54021
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-    {
-      "segment_id": "seg0006",
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-      "speaker_id": "780"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046306.json b/conversations/conv_046306.json
deleted file mode 100644
index acd989881dc174ffc40cfcbea89b00e811182446..0000000000000000000000000000000000000000
--- a/conversations/conv_046306.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "3867",
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-    {
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-  "background_events": [
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-      "speaker_id": "253"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046310.json b/conversations/conv_046310.json
deleted file mode 100644
index 77ecefee424bce1783e80ed098315c7261adca96..0000000000000000000000000000000000000000
--- a/conversations/conv_046310.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7835/cough/0058.wav",
-      "duration": 0.84,
-      "start_time": 0,
-      "speaker_id": "7835"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/398/cough/0058.wav",
-      "duration": 0.7720007922988597,
-      "start_time": 26.16116841327046,
-      "speaker_id": "398"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046317.json b/conversations/conv_046317.json
deleted file mode 100644
index 4efe2dfb5cfb49d64a8c64d4d84b577398627250..0000000000000000000000000000000000000000
--- a/conversations/conv_046317.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.339805643533104,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.0297245508284165,
-      "duration": 4.0297245508284165,
-      "start_frame": 0,
-      "duration_frames": 64475,
-      "overlap": false,
-      "utterance_id": "6726-56640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.701429246269239,
-      "end_time": 9.718779545200464,
-      "duration": 5.017350298931225,
-      "start_frame": 75222,
-      "duration_frames": 80277,
-      "overlap": false,
-      "utterance_id": "6726-56640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 64475
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.971257777644583,
-      "end_time": 13.597732485290546,
-      "duration": 3.626474707645964,
-      "start_frame": 159540,
-      "duration_frames": 58023,
-      "overlap": false,
-      "utterance_id": "6687-119386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119386.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.437993736298187,
-      "end_time": 18.389560812506765,
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-      "duration_frames": 79225,
-      "overlap": true,
-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.488060366454484,
-      "end_time": 25.0644381035056,
-      "duration": 5.576377737051117,
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-      "duration_frames": 89222,
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-      "utterance_id": "6726-56640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 144752
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.86027124146225,
-      "end_time": 31.192985113524095,
-      "duration": 5.332713872061846,
-      "start_frame": 413764,
-      "duration_frames": 85323,
-      "overlap": false,
-      "utterance_id": "110-2",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.029647824829468,
-      "end_time": 31.339805643533104,
-      "duration": 0.3101578187036367,
-      "start_frame": 496474,
-      "duration_frames": 4962,
-      "overlap": true,
-      "utterance_id": "6726-93466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
-      "start_time": 5.570348592318485
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
-      "duration": 2.1073469387755104,
-      "start_time": 13.483061060227236
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_7.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6687/laugh/0122.wav",
-      "duration": 1.36895620675035,
-      "start_time": 10.44786415817014,
-      "speaker_id": "6687"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6687/cough/0006.wav",
-      "duration": 1.0,
-      "start_time": 8.940625405953666,
-      "speaker_id": "6687"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6726/cough/0026.wav",
-      "duration": 1.4,
-      "start_time": 17.936833758226896,
-      "speaker_id": "6726"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046321.json b/conversations/conv_046321.json
deleted file mode 100644
index c5a6aebc07b8808d18754f35bfe7a4f792fdf6cc..0000000000000000000000000000000000000000
--- a/conversations/conv_046321.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.012630177454272,
-      "end_time": 10.814857698085294,
-      "duration": 4.802227520631022,
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-      "duration_frames": 76835,
-      "overlap": false,
-      "utterance_id": "6724-73991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73991.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.029046755316784,
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-      "duration_frames": 111553,
-      "overlap": false,
-      "utterance_id": "4969-73975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73975.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.56418020776497,
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-      "duration": 6.550700324575629,
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-      "duration_frames": 104811,
-      "overlap": false,
-      "utterance_id": "6724-73990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73990.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.272861978128255,
-      "end_time": 30.23250707365573,
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-      "overlap": true,
-      "utterance_id": "4969-73974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73974.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.347028419723706,
-      "end_time": 32.0,
-      "duration": 0.6529715802762937,
-      "start_frame": 501552,
-      "duration_frames": 10447,
-      "overlap": false,
-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 89138
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
-      "start_time": 7.212564060275135
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-      "start_time": 21.411665553792236
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_1.wav",
-      "duration": 0.35356009070294786,
-      "start_time": 13.136773425839955
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6724/laugh/0163.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/laugh/0019.wav",
-      "duration": 0.96,
-      "start_time": 14.89319213104725,
-      "speaker_id": "4969"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/laugh/0040.wav",
-      "duration": 1.0486562462509874,
-      "start_time": 24.056277957953135,
-      "speaker_id": "4969"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/cough/0062.wav",
-      "duration": 0.8,
-      "start_time": 30.261256803644272,
-      "speaker_id": "4969"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7525/cough/0046.wav",
-      "duration": 0.6614456705510415,
-      "start_time": 30.517991521717406,
-      "speaker_id": "7525"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046337.json b/conversations/conv_046337.json
deleted file mode 100644
index e6cfc42fb761f0461007693eb3fc3b9f0c98a156..0000000000000000000000000000000000000000
--- a/conversations/conv_046337.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "2943-171001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171001.flac |",
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-    {
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-      "utterance_id": "6849-69603",
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-      "real_speaker_id": "6849",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6749-53254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-53254.flac |",
-      "real_speaker_id": "6749",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-      "real_speaker_id": "6849",
-      "position_frames": 89913
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.705866532918026,
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-      "utterance_id": "6749-76160",
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-      "real_speaker_id": "6749",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6749/cough/0073.wav",
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-      "speaker_id": "6749"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046340.json b/conversations/conv_046340.json
deleted file mode 100644
index dade4cbbd416bfefa7bccd9f4773f5b2a0dfa1d6..0000000000000000000000000000000000000000
--- a/conversations/conv_046340.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7832-114468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-114468.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-258250.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 110518
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122743.flac |",
-      "real_speaker_id": "432",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 1.08,
-      "start_time": 30.343196775651233,
-      "speaker_id": "7832"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.34,
-      "start_time": 30.66,
-      "speaker_id": "432"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046347.json b/conversations/conv_046347.json
deleted file mode 100644
index 9bc8ed66b82083bd92d9f97e32549c9a38bc5817..0000000000000000000000000000000000000000
--- a/conversations/conv_046347.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.633713695329142,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-139304.flac |",
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 17.161515542933152,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 77710
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.763119781419565,
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-      "overlap": true,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 101052
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.18797069460151,
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-      "duration": 2.8120293053984895,
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-      "utterance_id": "8671-285138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8671-285138.flac |",
-      "real_speaker_id": "8671",
-      "position_frames": 146146
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-      "event_class": "laugh",
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-      "duration": 1.5,
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-      "speaker_id": "3079"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046351.json b/conversations/conv_046351.json
deleted file mode 100644
index 50c9480840a5fc8ef489ce49651cbe40008a965b..0000000000000000000000000000000000000000
--- a/conversations/conv_046351.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7384-84010.flac |",
-      "real_speaker_id": "7384",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2393-144496.flac |",
-      "real_speaker_id": "2393",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.847943763567255,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 77506
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "real_speaker_id": "2393",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046356.json b/conversations/conv_046356.json
deleted file mode 100644
index f28a331feb3c39b198e94df504850fee005479d0..0000000000000000000000000000000000000000
--- a/conversations/conv_046356.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "4196-23955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23955.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57660.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 0
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-      "real_speaker_id": "3925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-      "utterance_id": "4196-23901",
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-  "background_events": [
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-      "event_class": "Frying",
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-      "speaker_id": "4196"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046360.json b/conversations/conv_046360.json
deleted file mode 100644
index e0eb12f6b45be1d428a27f2fda97c841e19734cd..0000000000000000000000000000000000000000
--- a/conversations/conv_046360.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.871556863719293,
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-      "utterance_id": "3440-171006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3132",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171009.flac |",
-      "real_speaker_id": "3440",
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-      "real_speaker_id": "3132",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171009.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 54607
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 1.36,
-      "start_time": 22.993352724218635,
-      "speaker_id": "3132"
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-      "event_class": "cough",
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-      "duration": 1.06,
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-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "3440"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046376.json b/conversations/conv_046376.json
deleted file mode 100644
index 582e26061daf012c71003549110a979dc6ce0409..0000000000000000000000000000000000000000
--- a/conversations/conv_046376.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "1601-136848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136848.flac |",
-      "real_speaker_id": "1601",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.54120839405212,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "1601-136848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1601-136848.flac |",
-      "real_speaker_id": "1601",
-      "position_frames": 65753
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 84959
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3118-5911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5911.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.77786419121349,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 156586
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-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.5974016020102015,
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-}
\ No newline at end of file
diff --git a/conversations/conv_046383.json b/conversations/conv_046383.json
deleted file mode 100644
index 7241197c9461721d4aa08e04b2cecf31acebe653..0000000000000000000000000000000000000000
--- a/conversations/conv_046383.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.86469111472421,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "3500-134409",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52137.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "4719-25765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.22592569705552,
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-      "utterance_id": "5781-52134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52134.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046384.json b/conversations/conv_046384.json
deleted file mode 100644
index bcafeb61d946acc1dcf8d8614c4f026bcd611236..0000000000000000000000000000000000000000
--- a/conversations/conv_046384.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-163606.flac |",
-      "real_speaker_id": "3513",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "3513-7741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3513-7741.flac |",
-      "real_speaker_id": "3513",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "5810",
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-      "real_speaker_id": "3513",
-      "position_frames": 73016
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046394.json b/conversations/conv_046394.json
deleted file mode 100644
index 3ebba018807cd899f3ca24ff16edd3ae8f4582c8..0000000000000000000000000000000000000000
--- a/conversations/conv_046394.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-139231.flac |",
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-      "utterance_id": "313-122804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/313-122804.flac |",
-      "real_speaker_id": "313",
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\ No newline at end of file
diff --git a/conversations/conv_046395.json b/conversations/conv_046395.json
deleted file mode 100644
index 1c639f192573bcfc9233dbed3856889cc47d15ca..0000000000000000000000000000000000000000
--- a/conversations/conv_046395.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_046399.json b/conversations/conv_046399.json
deleted file mode 100644
index 04702c7eec44da94afd8714c8d4ad0984fd0c296..0000000000000000000000000000000000000000
--- a/conversations/conv_046399.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4381",
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-      "real_speaker_id": "7569",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7097-80037",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-80037.flac |",
-      "real_speaker_id": "7097",
-      "position_frames": 69888
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046402.json b/conversations/conv_046402.json
deleted file mode 100644
index f50dbe814d8f7ab2fe047e2a3ab8f8de211365d4..0000000000000000000000000000000000000000
--- a/conversations/conv_046402.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
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-      "real_speaker_id": "6353",
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-    {
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-      "real_speaker_id": "3540",
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-      "duration": 1.44,
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-}
\ No newline at end of file
diff --git a/conversations/conv_046403.json b/conversations/conv_046403.json
deleted file mode 100644
index 940152a515d37bb35fb60516e395025472f8d557..0000000000000000000000000000000000000000
--- a/conversations/conv_046403.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.13339405081843,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61780.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.166071065293828,
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-      "overlap": false,
-      "utterance_id": "6378-61780",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61780.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 86077
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 147953
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.60384943290441,
-      "end_time": 32.0,
-      "duration": 0.3961505670955887,
-      "start_frame": 505661,
-      "duration_frames": 6338,
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-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 77256
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6378/laugh/0097.wav",
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-    {
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-      "duration": 1.0,
-      "start_time": 31.0,
-      "speaker_id": "6378"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046415.json b/conversations/conv_046415.json
deleted file mode 100644
index 079d7587dfe1f863623459b9e2acf85da03aed6f..0000000000000000000000000000000000000000
--- a/conversations/conv_046415.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.333833953866566,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-12898.flac |",
-      "real_speaker_id": "4222",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/201-122255.flac |",
-      "real_speaker_id": "201",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 94076
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-187006.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
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-      "position_frames": 161431
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "duration": 1.02,
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-}
\ No newline at end of file
diff --git a/conversations/conv_046419.json b/conversations/conv_046419.json
deleted file mode 100644
index 3048498734de93e6acb27191ef05cdb3cf9c12bc..0000000000000000000000000000000000000000
--- a/conversations/conv_046419.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.763721693852272,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/699-132882.flac |",
-      "real_speaker_id": "699",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-159771.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_046423.json b/conversations/conv_046423.json
deleted file mode 100644
index 2bb0b130ed5336d14c72a7adc890a4ba93a3f8ed..0000000000000000000000000000000000000000
--- a/conversations/conv_046423.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6686-216563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6686-216563.flac |",
-      "real_speaker_id": "6686",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6686-216563.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046428.json b/conversations/conv_046428.json
deleted file mode 100644
index d201c611ecf72f494f1014dfa516923e64b11a43..0000000000000000000000000000000000000000
--- a/conversations/conv_046428.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "976",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
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-      "real_speaker_id": "4979",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_046435.json b/conversations/conv_046435.json
deleted file mode 100644
index 90a94eabb62ac1395755c9dd17fc394649b8c419..0000000000000000000000000000000000000000
--- a/conversations/conv_046435.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_046439.json b/conversations/conv_046439.json
deleted file mode 100644
index 006e4589211ce59e394c52dc8e3c5601ff4b6659..0000000000000000000000000000000000000000
--- a/conversations/conv_046439.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_046442.json b/conversations/conv_046442.json
deleted file mode 100644
index afe470bb7ce11f9b8693692730f95f84cd61255f..0000000000000000000000000000000000000000
--- a/conversations/conv_046442.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6120",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6120-14976.flac |",
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-      "speaker_id": "6482"
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\ No newline at end of file
diff --git a/conversations/conv_046454.json b/conversations/conv_046454.json
deleted file mode 100644
index 78dbe28d81ce48b1629bdc4547cf03400cbf34ec..0000000000000000000000000000000000000000
--- a/conversations/conv_046454.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-126302.flac |",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
-      "real_speaker_id": "166",
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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\ No newline at end of file
diff --git a/conversations/conv_046455.json b/conversations/conv_046455.json
deleted file mode 100644
index 78d8e3516ac891da71a52ae41f0eb3c5747bce0c..0000000000000000000000000000000000000000
--- a/conversations/conv_046455.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_046458.json b/conversations/conv_046458.json
deleted file mode 100644
index 124d2b5466dc709cd3318a6b679f9c054b9e7081..0000000000000000000000000000000000000000
--- a/conversations/conv_046458.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046462.json b/conversations/conv_046462.json
deleted file mode 100644
index 6de8cf1d3f4505ab39accb6cdb64b6ee47de7381..0000000000000000000000000000000000000000
--- a/conversations/conv_046462.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6099/laugh/0049.wav",
-      "duration": 1.3399808092810188,
-      "start_time": 0,
-      "speaker_id": "6099"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7190/laugh/0072.wav",
-      "duration": 0.7880334292211079,
-      "start_time": 12.168713404533802,
-      "speaker_id": "7190"
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-    {
-      "event_class": "cough",
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-      "duration": 0.38506821945046804,
-      "start_time": 17.88898979833991,
-      "speaker_id": "7190"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046469.json b/conversations/conv_046469.json
deleted file mode 100644
index 50d31c9569267c7e266d1032de6b1586b1f3d0aa..0000000000000000000000000000000000000000
--- a/conversations/conv_046469.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.0886932123569615,
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-      "overlap": false,
-      "utterance_id": "7879-274136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274136.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.621506543781452,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 12.013441759142724,
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-      "duration": 5.836025303202644,
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-      "duration_frames": 93376,
-      "overlap": true,
-      "utterance_id": "7879-274136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274136.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 81419
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.590283889510903,
-      "end_time": 23.761868377386854,
-      "duration": 5.17158448787595,
-      "start_frame": 297444,
-      "duration_frames": 82745,
-      "overlap": false,
-      "utterance_id": "3553-734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-734.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.349418083083677,
-      "end_time": 29.536400678168647,
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-      "overlap": false,
-      "utterance_id": "3553-734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-734.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 82745
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.459840521989864,
-      "end_time": 32.0,
-      "duration": 1.5401594780101355,
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-      "overlap": false,
-      "utterance_id": "7879-274125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274125.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "7879"
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3553/laugh/0030.wav",
-      "duration": 1.62,
-      "start_time": 29.567100225264603,
-      "speaker_id": "3553"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7879/cough/0048.wav",
-      "duration": 0.647649265545793,
-      "start_time": 29.627188084633534,
-      "speaker_id": "7879"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046474.json b/conversations/conv_046474.json
deleted file mode 100644
index 2381a438a46c086dc0e1535a8b9a8ff083ab5727..0000000000000000000000000000000000000000
--- a/conversations/conv_046474.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.61290628808056,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.214215614751178,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 72050
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-      "segment_id": "seg0002",
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-      "start_time": 11.431261665941747,
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-      "utterance_id": "2787-157400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2787-157400.flac |",
-      "real_speaker_id": "2787",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.53655862389414,
-      "end_time": 24.179125352373838,
-      "duration": 4.642566728479696,
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-      "duration_frames": 74281,
-      "overlap": false,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 158623
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.161563929245517,
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-      "overlap": false,
-      "utterance_id": "6792-73039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6792-73039.flac |",
-      "real_speaker_id": "6792",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2787/cough/0039.wav",
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-      "speaker_id": "6792"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046478.json b/conversations/conv_046478.json
deleted file mode 100644
index 7ad5f22f6505140c255ae62ce9cdecdb516631db..0000000000000000000000000000000000000000
--- a/conversations/conv_046478.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-157088.flac |",
-      "real_speaker_id": "205",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98202.flac |",
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-      "utterance_id": "6399-278849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278849.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.916499153874526,
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-      "utterance_id": "7228-98238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98238.flac |",
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-  "foreground_events": [
-    {
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-      "speaker_id": "7228"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046479.json b/conversations/conv_046479.json
deleted file mode 100644
index 2c66d036f3ec9ec5bf7f4fb675c04a55d2c4625b..0000000000000000000000000000000000000000
--- a/conversations/conv_046479.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4442-2868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
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-  "foreground_events": [
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-      "duration": 2.249795918367347,
-      "start_time": 16.50788851371539
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4442/laugh/0027.wav",
-      "duration": 0.8445664498196568,
-      "start_time": 2.4300866953195137,
-      "speaker_id": "4442"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046481.json b/conversations/conv_046481.json
deleted file mode 100644
index 4e234a0d13375eb5ce992ed131ffee41d31490ae..0000000000000000000000000000000000000000
--- a/conversations/conv_046481.json
+++ /dev/null
@@ -1,180 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6006-57831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9273932315893036,
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-      "utterance_id": "6006-60480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60480.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 13.141409097951643,
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-      "utterance_id": "4152-12926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 55956
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 53289
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "4152-12926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
-      "real_speaker_id": "4152",
-      "position_frames": 151872
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.224022432510207,
-      "end_time": 32.0,
-      "duration": 4.775977567489793,
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-      "utterance_id": "6006-57831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-57831.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 111158
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6006/cough/0027.wav",
-      "duration": 0.880438636869159,
-      "start_time": 0,
-      "speaker_id": "6006"
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-    {
-      "event_class": "laugh",
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-      "start_time": 5.048363439302841,
-      "speaker_id": "4152"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "4152"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6006/laugh/0108.wav",
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-      "speaker_id": "6006"
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-    {
-      "event_class": "cough",
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-      "duration": 0.74,
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-      "speaker_id": "6006"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046486.json b/conversations/conv_046486.json
deleted file mode 100644
index 90d262811f91b61205a20345392c54fc2e1bbafe..0000000000000000000000000000000000000000
--- a/conversations/conv_046486.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-8681.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.01692027538078,
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-      "duration": 6.270403738815075,
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-      "overlap": true,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 116301
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.97829972869539,
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-      "overlap": false,
-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.428819441801444,
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-      "duration": 3.571180558198556,
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-      "overlap": false,
-      "utterance_id": "5952-50948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-50948.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "start_time": 18.69351093239589,
-      "speaker_id": "81"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046490.json b/conversations/conv_046490.json
deleted file mode 100644
index e7e70738eea8d7b189287f430e3c408688369b40..0000000000000000000000000000000000000000
--- a/conversations/conv_046490.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7009-83683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-83683.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 0
-    },
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-      "real_speaker_id": "5840",
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-      "real_speaker_id": "1509",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.47160645387737,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54188.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "1509",
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-    {
-      "segment_id": "seg0006",
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-  "background_events": [
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_046497.json b/conversations/conv_046497.json
deleted file mode 100644
index 9223e0430a2cca6a528a3e4fbc95c274ed2c23be..0000000000000000000000000000000000000000
--- a/conversations/conv_046497.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.45279935819433,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-    {
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "2532",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-123163.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-154838.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_046507.json b/conversations/conv_046507.json
deleted file mode 100644
index dd635fba044a29a3d38d5d0ad00a4412f4683738..0000000000000000000000000000000000000000
--- a/conversations/conv_046507.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.103037501881097,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94467.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.4813904741832316,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-49750.flac |",
-      "real_speaker_id": "5723",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.836498714448375,
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-      "start_frame": 221383,
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-      "overlap": false,
-      "utterance_id": "4705-94473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94473.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.463277254795948,
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-      "overlap": true,
-      "utterance_id": "4705-94467",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-94467.flac |",
-      "real_speaker_id": "4705",
-      "position_frames": 84494
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.943902493246792,
-      "end_time": 31.103037501881097,
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-      "duration_frames": 82546,
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-      "utterance_id": "5723-43306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-43306.flac |",
-      "real_speaker_id": "5723",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5723/laugh/0071.wav",
-      "duration": 1.2,
-      "start_time": 13.040572031141576,
-      "speaker_id": "5723"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046510.json b/conversations/conv_046510.json
deleted file mode 100644
index e31310010103ac43169539ac8f4a9e68bd7fe3cd..0000000000000000000000000000000000000000
--- a/conversations/conv_046510.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.641136661108785,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8023-286253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286253.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246972.flac |",
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-      "start_time": 10.782555198156007,
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-      "utterance_id": "4779-85471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4779-85471.flac |",
-      "real_speaker_id": "4779",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4779-85498.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246974.flac |",
-      "real_speaker_id": "8778",
-      "position_frames": 0
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-      "utterance_id": "4779-85471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4779-85471.flac |",
-      "real_speaker_id": "4779",
-      "position_frames": 66173
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "duration": 1.16,
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-      "speaker_id": "8778"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4779/cough/0101.wav",
-      "duration": 0.6747782142157301,
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-      "speaker_id": "4779"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046511.json b/conversations/conv_046511.json
deleted file mode 100644
index cb19e96cdec81eed0e8411f9553ca5ee988db545..0000000000000000000000000000000000000000
--- a/conversations/conv_046511.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "overlap": false,
-      "utterance_id": "4010-10822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10822.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "7408-256039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-256039.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4010-10798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10798.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.449801001423005,
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-      "utterance_id": "5906-52158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-52158.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 25.443655427291265,
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-      "utterance_id": "4010-10822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10822.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 89441
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.31338890780702,
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-      "overlap": false,
-      "utterance_id": "7408-255943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7408-255943.flac |",
-      "real_speaker_id": "7408",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 2.099656824580686,
-      "speaker_id": "4010"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5906/laugh/0102.wav",
-      "duration": 1.012335238167553,
-      "start_time": 18.409983704327384,
-      "speaker_id": "5906"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4010/laugh/0023.wav",
-      "duration": 1.14,
-      "start_time": 24.014471032362575,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7408/cough/0061.wav",
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-      "start_time": 31.372171990869333,
-      "speaker_id": "7408"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046527.json b/conversations/conv_046527.json
deleted file mode 100644
index 23124809590dc9f261270829c087a6e30a01118a..0000000000000000000000000000000000000000
--- a/conversations/conv_046527.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.364426442878333,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "298-126791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126791.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-138531.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "298",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_046531.json b/conversations/conv_046531.json
deleted file mode 100644
index 4cd7ab4b32b92cb293cd62672e990dd4d05dd2ac..0000000000000000000000000000000000000000
--- a/conversations/conv_046531.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "7155",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-10644.flac |",
-      "real_speaker_id": "7155",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.342651740357383,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8824-279153.flac |",
-      "real_speaker_id": "8824",
-      "position_frames": 106590
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_046546.json b/conversations/conv_046546.json
deleted file mode 100644
index 50e4d7a1c3be73682632bd7adeb67b84fb74907b..0000000000000000000000000000000000000000
--- a/conversations/conv_046546.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "utterance_id": "4447-14919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
-      "real_speaker_id": "4447",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046547.json b/conversations/conv_046547.json
deleted file mode 100644
index 8bd2e4dcfb270a3d2f5b2c4d44166da08e9f7a47..0000000000000000000000000000000000000000
--- a/conversations/conv_046547.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "1224",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046550.json b/conversations/conv_046550.json
deleted file mode 100644
index 245bedfb1488b78c0a839c6188677f63b32fbb51..0000000000000000000000000000000000000000
--- a/conversations/conv_046550.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7178-34645.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_046566.json b/conversations/conv_046566.json
deleted file mode 100644
index a71962d66805f35dc64da088fa1e0fdc0407b892..0000000000000000000000000000000000000000
--- a/conversations/conv_046566.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5471-284429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-284429.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
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-      "start_time": 5.173905055985856,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-280362.flac |",
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-      "position_frames": 110771
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046570.json b/conversations/conv_046570.json
deleted file mode 100644
index 3a5d83ce6e973a0ec938971f5fd871ca4e295ba9..0000000000000000000000000000000000000000
--- a/conversations/conv_046570.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7447",
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-      "real_speaker_id": "5909",
-      "position_frames": 88920
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5909-111961.flac |",
-      "real_speaker_id": "5909",
-      "position_frames": 183324
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "speaker_id": "5909"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046582.json b/conversations/conv_046582.json
deleted file mode 100644
index 8c5cd3d507582d0814460e36a36a786e9c472f0a..0000000000000000000000000000000000000000
--- a/conversations/conv_046582.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156115.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135043.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046585.json b/conversations/conv_046585.json
deleted file mode 100644
index 19fb4fabfcd169e911a18fc54da7ceb55feabff5..0000000000000000000000000000000000000000
--- a/conversations/conv_046585.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_046589.json b/conversations/conv_046589.json
deleted file mode 100644
index 9d8d363daa6a22dd9b7f4042f319da210addf8d1..0000000000000000000000000000000000000000
--- a/conversations/conv_046589.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_046593.json b/conversations/conv_046593.json
deleted file mode 100644
index a00f657cc902419f8b909d9988d3d9fa152f9913..0000000000000000000000000000000000000000
--- a/conversations/conv_046593.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_046594.json b/conversations/conv_046594.json
deleted file mode 100644
index db80abe18938510ef3c6d2c4691069cc2c1e62ee..0000000000000000000000000000000000000000
--- a/conversations/conv_046594.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_046602.json b/conversations/conv_046602.json
deleted file mode 100644
index d6eec2b1f5f230903e60c93ffbbabd72e4618f1f..0000000000000000000000000000000000000000
--- a/conversations/conv_046602.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8722-296473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8722-296473.flac |",
-      "real_speaker_id": "8722",
-      "position_frames": 0
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-      "start_time": 7.7246935567952715,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57660.flac |",
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-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "utterance_id": "8722-296473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8722-296473.flac |",
-      "real_speaker_id": "8722",
-      "position_frames": 109495
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.272195305026873,
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-      "utterance_id": "3925-57660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57660.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 98524
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.566068173589002,
-      "end_time": 32.0,
-      "duration": 0.4339318264109977,
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-      "utterance_id": "4273-188164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188164.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046605.json b/conversations/conv_046605.json
deleted file mode 100644
index b8d5aade534ac9a2a93afe99c016c1106b47ea30..0000000000000000000000000000000000000000
--- a/conversations/conv_046605.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126851.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100425.flac |",
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-      "position_frames": 67287
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-158816.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-107247.flac |",
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-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "667"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046613.json b/conversations/conv_046613.json
deleted file mode 100644
index a56b263b9f0d3b8cb18ea1db7f3112f558bc8772..0000000000000000000000000000000000000000
--- a/conversations/conv_046613.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-1187.flac |",
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-    {
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "5296",
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046614.json b/conversations/conv_046614.json
deleted file mode 100644
index 5df0b1e2ec3c77d728456fdf7a1d74af7c9ea6bc..0000000000000000000000000000000000000000
--- a/conversations/conv_046614.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_046618.json b/conversations/conv_046618.json
deleted file mode 100644
index dbee903a407f49cce7c5846e171c02af41d3fcaf..0000000000000000000000000000000000000000
--- a/conversations/conv_046618.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295524.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16026.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046622.json b/conversations/conv_046622.json
deleted file mode 100644
index 428d837181a8ba6d3fc7d7bcb2e9fdac5d2d2f66..0000000000000000000000000000000000000000
--- a/conversations/conv_046622.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "8410",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106367.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046634.json b/conversations/conv_046634.json
deleted file mode 100644
index 5091f1e0526022ad51346ecf3dc68239cb50c376..0000000000000000000000000000000000000000
--- a/conversations/conv_046634.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_046638.json b/conversations/conv_046638.json
deleted file mode 100644
index b0331a071de877c4fc78fb6de44d387584000911..0000000000000000000000000000000000000000
--- a/conversations/conv_046638.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "start_time": 12.42373005800775,
-      "speaker_id": "3990"
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "start_time": 31.409978126165456,
-      "speaker_id": "6294"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046639.json b/conversations/conv_046639.json
deleted file mode 100644
index e78b505d7ca7fb0192fadcfdb1d3675f53d501eb..0000000000000000000000000000000000000000
--- a/conversations/conv_046639.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.998004651642564,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.135273372910044,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "831-130739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.725230434955653,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134143.flac |",
-      "real_speaker_id": "3757",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.237850773945459,
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-      "utterance_id": "831-130746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130746.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.06644745000658,
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-      "duration": 5.673227991195198,
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-      "overlap": false,
-      "utterance_id": "3757-134142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134142.flac |",
-      "real_speaker_id": "3757",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.309939285405083,
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-      "duration_frames": 55200,
-      "overlap": false,
-      "utterance_id": "831-130739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 98164
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.361920304330376,
-      "end_time": 31.998004651642564,
-      "duration": 4.636084347312187,
-      "start_frame": 437790,
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-      "overlap": false,
-      "utterance_id": "54-121080",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/54-121080.flac |",
-      "real_speaker_id": "54",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-      "event_class": "Cat",
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-      "speaker_id": "54"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046643.json b/conversations/conv_046643.json
deleted file mode 100644
index a116b1d6fb94372b64095c86c96e141227885907..0000000000000000000000000000000000000000
--- a/conversations/conv_046643.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3664-178366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-178366.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.890114706227214,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-143240.flac |",
-      "real_speaker_id": "133",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-178366.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 85592
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.204861220746242,
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-      "overlap": false,
-      "utterance_id": "133-142924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-142924.flac |",
-      "real_speaker_id": "133",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 21.265807691007353,
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-      "overlap": false,
-      "utterance_id": "3664-11714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3664-11714.flac |",
-      "real_speaker_id": "3664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.24491894257694,
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-      "duration": 4.755081057423059,
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-      "duration_frames": 76081,
-      "overlap": false,
-      "utterance_id": "481-123719",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123719.flac |",
-      "real_speaker_id": "481",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/481/laugh/0103.wav",
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-      "speaker_id": "481"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046644.json b/conversations/conv_046644.json
deleted file mode 100644
index edffce47e11fc640711d0bfb89eba54a817596dd..0000000000000000000000000000000000000000
--- a/conversations/conv_046644.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "8193-116804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127193.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 21.01303416833115,
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-      "real_speaker_id": "766",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/766/laugh/0050.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046652.json b/conversations/conv_046652.json
deleted file mode 100644
index 3411a149b09573c7e58e2dd2598553437997bd62..0000000000000000000000000000000000000000
--- a/conversations/conv_046652.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.193369690034835,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6777-76701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76701.flac |",
-      "real_speaker_id": "6777",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2775-161226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-161226.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.807937785423622,
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-      "utterance_id": "2775-134792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-134792.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6777/cough/0095.wav",
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-      "start_time": 0,
-      "speaker_id": "6777"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2775/cough/0052.wav",
-      "duration": 0.6500128493622106,
-      "start_time": 12.535660455713211,
-      "speaker_id": "2775"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2775/laugh/0035.wav",
-      "duration": 0.98,
-      "start_time": 30.5237225007681,
-      "speaker_id": "2775"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046655.json b/conversations/conv_046655.json
deleted file mode 100644
index 417393e39481f75dfa2eb18ed210152d2aff6d18..0000000000000000000000000000000000000000
--- a/conversations/conv_046655.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 5.216019640033382,
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-      "duration_frames": 83456,
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-      "utterance_id": "23-124439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.569242134350758,
-      "end_time": 11.676281654622148,
-      "duration": 6.107039520271389,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
-      "position_frames": 83456
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4958-11613",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
-      "real_speaker_id": "4958",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.123569941129045,
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-      "overlap": false,
-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
-      "real_speaker_id": "4958",
-      "position_frames": 78554
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.537384764235224,
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-      "duration": 4.462615235764776,
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-      "utterance_id": "23-124439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/23-124439.flac |",
-      "real_speaker_id": "23",
-      "position_frames": 181168
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046659.json b/conversations/conv_046659.json
deleted file mode 100644
index 13bf0d19cd9d2ec7c77c5568c586289188ddfe58..0000000000000000000000000000000000000000
--- a/conversations/conv_046659.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.450771582156953,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32891.flac |",
-      "real_speaker_id": "5661",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32891.flac |",
-      "real_speaker_id": "5661",
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-      "segment_id": "seg0002",
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-      "duration_frames": 69210,
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-      "utterance_id": "110-1",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-1.flac |",
-      "real_speaker_id": "110",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32891.flac |",
-      "real_speaker_id": "5661",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/110-2.flac |",
-      "real_speaker_id": "110",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.951905762427472,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32891.flac |",
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-      "position_frames": 210343
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046663.json b/conversations/conv_046663.json
deleted file mode 100644
index 236c225a3294437ec207b89c2595d1b91bafeca9..0000000000000000000000000000000000000000
--- a/conversations/conv_046663.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
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-      "position_frames": 68161
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-178450.flac |",
-      "real_speaker_id": "2573",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "712",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "712-123615",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046675.json b/conversations/conv_046675.json
deleted file mode 100644
index 1daa80f648330bbfafb315781cb906f70891f94e..0000000000000000000000000000000000000000
--- a/conversations/conv_046675.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125258.flac |",
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-      "segment_id": "seg0002",
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-    {
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
-      "duration": 1.05305873932195,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7062/cough/0071.wav",
-      "duration": 1.249626064209592,
-      "start_time": 25.83790562142184,
-      "speaker_id": "7062"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046679.json b/conversations/conv_046679.json
deleted file mode 100644
index a083ee6aed33349de53d12ca165e7807c463b818..0000000000000000000000000000000000000000
--- a/conversations/conv_046679.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.56091776349749,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.255330147455398,
-      "duration": 5.255330147455398,
-      "start_frame": 0,
-      "duration_frames": 84085,
-      "overlap": false,
-      "utterance_id": "2488-155526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155526.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.110263128033646,
-      "end_time": 12.552699053837669,
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-      "utterance_id": "6196-41030",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.29876770704449,
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-      "duration": 4.0062528511078055,
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-      "duration_frames": 64100,
-      "overlap": false,
-      "utterance_id": "7460-104483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7460-104483.flac |",
-      "real_speaker_id": "7460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.563799842187805,
-      "end_time": 21.490357756674978,
-      "duration": 3.926557914487174,
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-      "duration_frames": 62824,
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-      "utterance_id": "2488-155526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155526.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 84085
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.75397258511234,
-      "end_time": 26.92980794890801,
-      "duration": 5.17583536379567,
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-      "utterance_id": "2488-155524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155524.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.374784542819274,
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-      "utterance_id": "2488-155508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155508.flac |",
-      "real_speaker_id": "2488",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2488/laugh/0047.wav",
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-      "speaker_id": "2488"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046680.json b/conversations/conv_046680.json
deleted file mode 100644
index e8d6a937635bebfcddd43e0ba1fcf6165aaaff4a..0000000000000000000000000000000000000000
--- a/conversations/conv_046680.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.544479389636386,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125348.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.320491184060402,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68896.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.012886149666045,
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-      "utterance_id": "6594-68897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68897.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.181921496825925,
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-      "utterance_id": "2012-139356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139356.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.88180185259257,
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-      "duration": 5.847345280224099,
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-      "overlap": false,
-      "utterance_id": "542-125348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125348.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 54439
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6594-68897.flac |",
-      "real_speaker_id": "6594",
-      "position_frames": 71026
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 12.774883631222139,
-      "speaker_id": "2012"
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 19.55822977577232,
-      "speaker_id": "542"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046681.json b/conversations/conv_046681.json
deleted file mode 100644
index 6b3cfaee684278ef825fd56c7d13c895fbc66d1f..0000000000000000000000000000000000000000
--- a/conversations/conv_046681.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.823445281612365,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3132-167590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-167590.flac |",
-      "real_speaker_id": "3132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-128284.flac |",
-      "real_speaker_id": "613",
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-      "segment_id": "seg0002",
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-      "utterance_id": "3132-167590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-167590.flac |",
-      "real_speaker_id": "3132",
-      "position_frames": 74577
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.012445562613593,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/613-128284.flac |",
-      "real_speaker_id": "613",
-      "position_frames": 54546
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.11335046392172,
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-      "overlap": false,
-      "utterance_id": "3132-163510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-163510.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_046691.json b/conversations/conv_046691.json
deleted file mode 100644
index 290dd1317c8742430bd83afcbaf49251906fa83d..0000000000000000000000000000000000000000
--- a/conversations/conv_046691.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 92163
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "4955",
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-    {
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_046696.json b/conversations/conv_046696.json
deleted file mode 100644
index 25e6f95e64018c5c1247b9228b0d75f0860480a7..0000000000000000000000000000000000000000
--- a/conversations/conv_046696.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.34477803000641,
-      "duration": 6.34477803000641,
-      "start_frame": 0,
-      "duration_frames": 101516,
-      "overlap": false,
-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.558247670836985,
-      "end_time": 11.29800939285947,
-      "duration": 4.739761722022484,
-      "start_frame": 104931,
-      "duration_frames": 75836,
-      "overlap": false,
-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.449612598966668,
-      "end_time": 14.623573963664384,
-      "duration": 3.1739613646977163,
-      "start_frame": 183193,
-      "duration_frames": 50783,
-      "overlap": false,
-      "utterance_id": "83-11691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-11691.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.266604955271672,
-      "end_time": 22.080138276079833,
-      "duration": 6.813533320808159,
-      "start_frame": 244265,
-      "duration_frames": 109016,
-      "overlap": false,
-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
-      "real_speaker_id": "8015",
-      "position_frames": 75836
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.20354577647733,
-      "end_time": 29.55990867380547,
-      "duration": 6.356362897328139,
-      "start_frame": 371256,
-      "duration_frames": 101701,
-      "overlap": false,
-      "utterance_id": "83-11691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-11691.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 50783
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.528303035346557,
-      "end_time": 32.0,
-      "duration": 1.471696964653443,
-      "start_frame": 488452,
-      "duration_frames": 23547,
-      "overlap": false,
-      "utterance_id": "6804-79288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6804-79288.flac |",
-      "real_speaker_id": "6804",
-      "position_frames": 101516
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
-      "start_time": 6.01520999897666
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
-      "duration": 1.9370421847093913,
-      "start_time": 12.674535800731915
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6804/laugh/0121.wav",
-      "duration": 1.3,
-      "start_time": 1.8015620625106785,
-      "speaker_id": "6804"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8015/laugh/0081.wav",
-      "duration": 1.1495085384427433,
-      "start_time": 11.494696793637972,
-      "speaker_id": "8015"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/83/laugh/0070.wav",
-      "duration": 0.9135544555227806,
-      "start_time": 14.71625322910855,
-      "speaker_id": "83"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/83/cough/0056.wav",
-      "duration": 0.37051970388247946,
-      "start_time": 10.960421974797644,
-      "speaker_id": "83"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/83/cough/0036.wav",
-      "duration": 0.8310723189585247,
-      "start_time": 26.616335216203197,
-      "speaker_id": "83"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6804/laugh/0077.wav",
-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "6804"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046701.json b/conversations/conv_046701.json
deleted file mode 100644
index a54548d16cee231e9ea5fe7d2164d1908dabb274..0000000000000000000000000000000000000000
--- a/conversations/conv_046701.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.145458645320217,
-      "duration": 4.145458645320217,
-      "start_frame": 0,
-      "duration_frames": 66327,
-      "overlap": false,
-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.43002247153776,
-      "end_time": 11.116249013710508,
-      "duration": 6.686226542172749,
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-      "duration_frames": 106979,
-      "overlap": false,
-      "utterance_id": "7565-101281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.470109154636848,
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-      "duration": 3.1020045188044594,
-      "start_frame": 183521,
-      "duration_frames": 49632,
-      "overlap": true,
-      "utterance_id": "7241-90850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90850.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.424678636387144,
-      "end_time": 20.96478108940972,
-      "duration": 5.540102453022576,
-      "start_frame": 246794,
-      "duration_frames": 88641,
-      "overlap": false,
-      "utterance_id": "7565-101287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101287.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.632822508986283,
-      "end_time": 26.784838234159942,
-      "duration": 5.152015725173659,
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-      "duration_frames": 82432,
-      "overlap": false,
-      "utterance_id": "7241-90850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90850.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 49632
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.916174369953154,
-      "end_time": 32.0,
-      "duration": 5.083825630046846,
-      "start_frame": 430658,
-      "duration_frames": 81341,
-      "overlap": false,
-      "utterance_id": "7565-101287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101287.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 88641
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 2.2330385487528344,
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7241/cough/0027.wav",
-      "duration": 0.952727606937122,
-      "start_time": 14.636158991593835,
-      "speaker_id": "7241"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046706.json b/conversations/conv_046706.json
deleted file mode 100644
index 1069a1df66567f4c7bfbc042606e58d47ddcfe7e..0000000000000000000000000000000000000000
--- a/conversations/conv_046706.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.089688560199785,
-      "duration": 4.089688560199785,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6614-67845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67845.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.233950556815282,
-      "end_time": 7.388812987484968,
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-      "overlap": false,
-      "utterance_id": "594-128329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/594-128329.flac |",
-      "real_speaker_id": "594",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 7.738977352166992,
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-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/594-127731.flac |",
-      "real_speaker_id": "594",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6614-67846",
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-      "real_speaker_id": "6614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "594-127731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/594-127731.flac |",
-      "real_speaker_id": "594",
-      "position_frames": 75777
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.652420591492167,
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-      "duration": 1.3475794085078334,
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-      "real_speaker_id": "6614",
-      "position_frames": 72940
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6614/laugh/0066.wav",
-      "duration": 1.8,
-      "start_time": 0,
-      "speaker_id": "6614"
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6614/cough/0097.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046710.json b/conversations/conv_046710.json
deleted file mode 100644
index 9289c013d337f85fb1d3afec5d150b13c767c9cd..0000000000000000000000000000000000000000
--- a/conversations/conv_046710.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.503291921737,
-      "duration": 4.503291921737,
-      "start_frame": 0,
-      "duration_frames": 72052,
-      "overlap": false,
-      "utterance_id": "263-121311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/263-121311.flac |",
-      "real_speaker_id": "263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.879458203175093,
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-      "duration_frames": 68913,
-      "overlap": false,
-      "utterance_id": "7402-90848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-90848.flac |",
-      "real_speaker_id": "7402",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "263-121285",
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-      "real_speaker_id": "263",
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-    {
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-    {
-      "segment_id": "seg0004",
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-    {
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "263"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7402/laugh/0087.wav",
-      "duration": 1.32,
-      "start_time": 7.131799956491702,
-      "speaker_id": "7402"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/263/laugh/0026.wav",
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-      "start_time": 10.753246425091648,
-      "speaker_id": "263"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/263/cough/0054.wav",
-      "duration": 1.16,
-      "start_time": 8.26659921852052,
-      "speaker_id": "263"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/263/laugh/0059.wav",
-      "duration": 1.0142730554541584,
-      "start_time": 22.80910021699214,
-      "speaker_id": "263"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046717.json b/conversations/conv_046717.json
deleted file mode 100644
index 7dcf7383f681e7548734c3b692149264b10d5d5b..0000000000000000000000000000000000000000
--- a/conversations/conv_046717.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.516392288083986,
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-      "overlap": false,
-      "utterance_id": "7265-74923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7265-74923.flac |",
-      "real_speaker_id": "7265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.035511609107756,
-      "end_time": 10.851447400592402,
-      "duration": 4.8159357914846455,
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-      "duration_frames": 77054,
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-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
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-      "utterance_id": "7265-74918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7265-74918.flac |",
-      "real_speaker_id": "7265",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "9022-282383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282383.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.80911369181547,
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-      "overlap": false,
-      "utterance_id": "7265-74918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7265-74918.flac |",
-      "real_speaker_id": "7265",
-      "position_frames": 83791
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.65013184913883,
-      "end_time": 32.0,
-      "duration": 2.3498681508611696,
-      "start_frame": 474402,
-      "duration_frames": 37597,
-      "overlap": false,
-      "utterance_id": "9022-282357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282357.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 23.17952949913749,
-      "start_time": 3.8950041485387206
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "9022"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046726.json b/conversations/conv_046726.json
deleted file mode 100644
index 80908fd7d9e444f3491b940624ef9ecf27f611af..0000000000000000000000000000000000000000
--- a/conversations/conv_046726.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 6.418879581116082,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
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-      "overlap": false,
-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 79064
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.831838572357523,
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-      "utterance_id": "272-130225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130225.flac |",
-      "real_speaker_id": "272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.941853043734486,
-      "end_time": 30.427034266152276,
-      "duration": 6.485181222417792,
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-      "overlap": false,
-      "utterance_id": "5724-13364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 95883
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.72540606629435,
-      "end_time": 32.0,
-      "duration": 1.274593933705649,
-      "start_frame": 491606,
-      "duration_frames": 20393,
-      "overlap": false,
-      "utterance_id": "272-130225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130225.flac |",
-      "real_speaker_id": "272",
-      "position_frames": 84187
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5724/cough/0010.wav",
-      "duration": 1.3603383309322685,
-      "start_time": 12.60308308434672,
-      "speaker_id": "5724"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4898/laugh/0003.wav",
-      "duration": 0.7583904403370634,
-      "start_time": 14.757519560334229,
-      "speaker_id": "4898"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046730.json b/conversations/conv_046730.json
deleted file mode 100644
index fbd5fb7a66a46f4ede34c590067119cbab174238..0000000000000000000000000000000000000000
--- a/conversations/conv_046730.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7705-101578",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101578.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.481089271790716,
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-      "utterance_id": "2156-82458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-82458.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.546497556603027,
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-      "utterance_id": "7705-101580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101580.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 20.09054183185517,
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-      "utterance_id": "2156-82458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-82458.flac |",
-      "real_speaker_id": "2156",
-      "position_frames": 97969
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7705",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2156-17942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2156-17942.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 28.21571477901832,
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-      "event_class": "cough",
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-      "speaker_id": "2156"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046740.json b/conversations/conv_046740.json
deleted file mode 100644
index dc905f5b9ef2bd550e6a35e3500430f8e2f5f055..0000000000000000000000000000000000000000
--- a/conversations/conv_046740.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.574434577116378,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.189141981693068,
-      "duration": 3.189141981693068,
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-      "utterance_id": "1653-141272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-141272.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.202627597631885,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57643.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6009-57646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57646.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.071607601178798,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-295957.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57646.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 67004
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.136907079695867,
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-      "utterance_id": "8625-295957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-295957.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 76951
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 30.96,
-      "speaker_id": "8625"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046747.json b/conversations/conv_046747.json
deleted file mode 100644
index a3e53b9086c0ec2d84bf98858b799cc4d8aa4df6..0000000000000000000000000000000000000000
--- a/conversations/conv_046747.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7967-117095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-117095.flac |",
-      "real_speaker_id": "7967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.66955754850239,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-117095.flac |",
-      "real_speaker_id": "7967",
-      "position_frames": 89412
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "3221-9174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.235877134433396,
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-      "utterance_id": "7967-117095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-117095.flac |",
-      "real_speaker_id": "7967",
-      "position_frames": 155277
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.915742086552857,
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-      "utterance_id": "101-126859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126859.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.656807781114367,
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-      "utterance_id": "7967-104986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-104986.flac |",
-      "real_speaker_id": "7967",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "foreground_events": [
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-      "speaker_id": "7967"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046751.json b/conversations/conv_046751.json
deleted file mode 100644
index 3bd453b367d5fd9f7268460ae701dea20a23bdb5..0000000000000000000000000000000000000000
--- a/conversations/conv_046751.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.5010988310715,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150915.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75912.flac |",
-      "real_speaker_id": "489",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.09953729809287,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 73779
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "489-75909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/489-75909.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/489/laugh/0080.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "489"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046756.json b/conversations/conv_046756.json
deleted file mode 100644
index 99f07e68a21857f76f5e0deeccec60e91224a466..0000000000000000000000000000000000000000
--- a/conversations/conv_046756.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.461282129192263,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7939-120325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120325.flac |",
-      "real_speaker_id": "7939",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.7887995430492705,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-7360.flac |",
-      "real_speaker_id": "2405",
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-      "utterance_id": "7939-120318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120318.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2405-7360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2405-7360.flac |",
-      "real_speaker_id": "2405",
-      "position_frames": 95202
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7939-120330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7939-120330.flac |",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046767.json b/conversations/conv_046767.json
deleted file mode 100644
index 9a598ba0bfc9d05a358af046188dbf329a689b0e..0000000000000000000000000000000000000000
--- a/conversations/conv_046767.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.932388317699805,
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-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_046771.json b/conversations/conv_046771.json
deleted file mode 100644
index 924c79e8f841ab0c1293c8e5b41da153e35b9ad9..0000000000000000000000000000000000000000
--- a/conversations/conv_046771.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1532.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-54612.flac |",
-      "real_speaker_id": "5949",
-      "position_frames": 0
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-    {
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-  "foreground_events": [
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_046784.json b/conversations/conv_046784.json
deleted file mode 100644
index 911d2367b9fa807d399c23f2fe21d54112981ce5..0000000000000000000000000000000000000000
--- a/conversations/conv_046784.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "4358",
-      "position_frames": 53931
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-      "speaker_id": 1,
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-      "real_speaker_id": "4358",
-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046788.json b/conversations/conv_046788.json
deleted file mode 100644
index e08111bd2dc1638cf67bb514a65e62ec031d4c70..0000000000000000000000000000000000000000
--- a/conversations/conv_046788.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5299",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/596-127685.flac |",
-      "real_speaker_id": "596",
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-      "real_speaker_id": "3781",
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-    {
-      "segment_id": "seg0003",
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-      "duration_frames": 49988,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5299-34547.flac |",
-      "real_speaker_id": "5299",
-      "position_frames": 161611
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.44,
-      "start_time": 4.067392018973917,
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-      "event_class": "laugh",
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-      "speaker_id": "5299"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046792.json b/conversations/conv_046792.json
deleted file mode 100644
index 41e7a912c687b503ea90faf168c3519a5cc56f08..0000000000000000000000000000000000000000
--- a/conversations/conv_046792.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "duration": 1.44,
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-      "speaker_id": "1225"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046793.json b/conversations/conv_046793.json
deleted file mode 100644
index 3a73c98d526380ee19f2cd18f4e00ecd2ca913ad..0000000000000000000000000000000000000000
--- a/conversations/conv_046793.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.718755717938418,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3691-178103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178103.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "718",
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-      "utterance_id": "3691-178118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178118.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/322-124147.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129594.flac |",
-      "real_speaker_id": "718",
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-  "background_events": [
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-      "event_class": "Frying",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_046803.json b/conversations/conv_046803.json
deleted file mode 100644
index 84144ae188c9c98cb291315a6b32ffff43cd9536..0000000000000000000000000000000000000000
--- a/conversations/conv_046803.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6119-48032.flac |",
-      "real_speaker_id": "6119",
-      "position_frames": 186611
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.15466044069753,
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-      "duration": 1.8453395593024702,
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-      "utterance_id": "4057-183239",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_046814.json b/conversations/conv_046814.json
deleted file mode 100644
index 6369875d1bfaab4d807caba4950dfacc7703e016..0000000000000000000000000000000000000000
--- a/conversations/conv_046814.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "698-123197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-123197.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4967",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046815.json b/conversations/conv_046815.json
deleted file mode 100644
index 8cf2d74cfd3e3947a19a67cfc9d5ef97b9faebc5..0000000000000000000000000000000000000000
--- a/conversations/conv_046815.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046819.json b/conversations/conv_046819.json
deleted file mode 100644
index 66216d0ebd40e431c2d681f450d0a0035f5c912f..0000000000000000000000000000000000000000
--- a/conversations/conv_046819.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 59146
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_046823.json b/conversations/conv_046823.json
deleted file mode 100644
index c0dd696175f5f8aa5d8a32c78d98e59e187917d8..0000000000000000000000000000000000000000
--- a/conversations/conv_046823.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
-      "segment_id": "seg0006",
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-      "start_time": 30.56,
-      "speaker_id": "5280"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046828.json b/conversations/conv_046828.json
deleted file mode 100644
index 5bc460a4cbb82ad4367bda090916396cc8f93b18..0000000000000000000000000000000000000000
--- a/conversations/conv_046828.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-      "utterance_id": "6418-39655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39655.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6749/laugh/0088.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "6418"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046835.json b/conversations/conv_046835.json
deleted file mode 100644
index f8b617352247ad0b246b5b1317fb5e29625f157b..0000000000000000000000000000000000000000
--- a/conversations/conv_046835.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.153512948066499,
-      "duration": 4.153512948066499,
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-      "overlap": false,
-      "utterance_id": "3553-697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.679079716895767,
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-      "utterance_id": "5565-40589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5565-40589.flac |",
-      "real_speaker_id": "5565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "3553-734",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-734.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.625932803704266,
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-      "overlap": false,
-      "utterance_id": "4433-16802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.146948070727923,
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-      "duration": 4.619899132031002,
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-      "utterance_id": "4433-16802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 90470
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.15220076880799,
-      "end_time": 32.0,
-      "duration": 4.84779923119201,
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-      "duration_frames": 77564,
-      "overlap": false,
-      "utterance_id": "3553-697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 66456
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.06,
-      "start_time": 7.938505600819766,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4433/laugh/0045.wav",
-      "duration": 1.4,
-      "start_time": 21.529008091990356,
-      "speaker_id": "4433"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046839.json b/conversations/conv_046839.json
deleted file mode 100644
index 31fa4a4c681ab07e58d511767144c73102eeabfd..0000000000000000000000000000000000000000
--- a/conversations/conv_046839.json
+++ /dev/null
@@ -1,129 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1767-142941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142941.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7585",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1767-142941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142941.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 78011
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.843680925589634,
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-      "utterance_id": "4034-12475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-12475.flac |",
-      "real_speaker_id": "4034",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.764390562864296,
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-      "utterance_id": "1767-142932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142932.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 52391
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "4034-5706",
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-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_046842.json b/conversations/conv_046842.json
deleted file mode 100644
index 6a5f6a34a1877e0735f1f31363f8bbe80aa7f7da..0000000000000000000000000000000000000000
--- a/conversations/conv_046842.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5906-52158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-52158.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "1031",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6794-73984",
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-    {
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_046843.json b/conversations/conv_046843.json
deleted file mode 100644
index a9d6d566cb3dbc824e8684be248c2a6488595040..0000000000000000000000000000000000000000
--- a/conversations/conv_046843.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.288898864087873,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "298-126791",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 28.63997102115244,
-      "speaker_id": "298"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046854.json b/conversations/conv_046854.json
deleted file mode 100644
index e0a045793c9af0f04b4c8fd1deb5f2b38866c6fe..0000000000000000000000000000000000000000
--- a/conversations/conv_046854.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.132676637716397,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8108-280354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8108-280354.flac |",
-      "real_speaker_id": "8108",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.540061723899948,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1690-142293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 48392
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.218074797289136,
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-      "overlap": false,
-      "utterance_id": "5230-4844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4844.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.79622960008701,
-      "end_time": 26.06120374582709,
-      "duration": 5.264974145740079,
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-      "duration_frames": 84239,
-      "overlap": false,
-      "utterance_id": "1690-142293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1690-142293.flac |",
-      "real_speaker_id": "1690",
-      "position_frames": 143968
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.720269763856088,
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-      "overlap": false,
-      "utterance_id": "5230-4879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4879.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "8108"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046858.json b/conversations/conv_046858.json
deleted file mode 100644
index bb5de9e1b48ac6518c9d5af156426af448ebc21f..0000000000000000000000000000000000000000
--- a/conversations/conv_046858.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.28172227810438,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8200-278238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278238.flac |",
-      "real_speaker_id": "8200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.705473902680666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278238.flac |",
-      "real_speaker_id": "8200",
-      "position_frames": 49872
-    },
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "47-122796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.47018171389383,
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-      "utterance_id": "8200-278238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278238.flac |",
-      "real_speaker_id": "8200",
-      "position_frames": 121292
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 62909,
-      "overlap": true,
-      "utterance_id": "47-122796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/47-122796.flac |",
-      "real_speaker_id": "47",
-      "position_frames": 189753
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/47/cough/0016.wav",
-      "duration": 1.08,
-      "start_time": 2.6169632419957876,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8200/laugh/0102.wav",
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-      "start_time": 27.174038153498095,
-      "speaker_id": "8200"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/47/laugh/0125.wav",
-      "duration": 0.96,
-      "start_time": 26.294678214132663,
-      "speaker_id": "47"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046862.json b/conversations/conv_046862.json
deleted file mode 100644
index d9296cdd15c534b2057b9af3679c30cd313efc22..0000000000000000000000000000000000000000
--- a/conversations/conv_046862.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "51-121055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/51-121055.flac |",
-      "real_speaker_id": "51",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.462329730783746,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32639.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.285896971770086,
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-      "utterance_id": "3157-119295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-119295.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.976743286606542,
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-      "duration_frames": 104101,
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-      "utterance_id": "51-121055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/51-121055.flac |",
-      "real_speaker_id": "51",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3157-168062",
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-      "real_speaker_id": "3157",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 0.31756706651709266,
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-      "duration_frames": 5081,
-      "overlap": false,
-      "utterance_id": "3157-119295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-119295.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 86948
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/51/laugh/0088.wav",
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-      "start_time": 0,
-      "speaker_id": "51"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/51/cough/0046.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "51"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3157/laugh/0006.wav",
-      "duration": 1.32,
-      "start_time": 9.80281595740656,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3157/laugh/0086.wav",
-      "duration": 1.5472805730828005,
-      "start_time": 23.121192951414084,
-      "speaker_id": "3157"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046869.json b/conversations/conv_046869.json
deleted file mode 100644
index d35d73bac910cc2c13817d9dbc900cc64ad94ab1..0000000000000000000000000000000000000000
--- a/conversations/conv_046869.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "7833-102239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 191069
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-    {
-      "segment_id": "seg0003",
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\ No newline at end of file
diff --git a/conversations/conv_046874.json b/conversations/conv_046874.json
deleted file mode 100644
index a3d5b869720b160086b4eba519216e5fd8462eec..0000000000000000000000000000000000000000
--- a/conversations/conv_046874.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
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-      "real_speaker_id": "7481",
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\ No newline at end of file
diff --git a/conversations/conv_046878.json b/conversations/conv_046878.json
deleted file mode 100644
index 39b44929a3cde996196dcd7d455afa4584d5569f..0000000000000000000000000000000000000000
--- a/conversations/conv_046878.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_046881.json b/conversations/conv_046881.json
deleted file mode 100644
index 2d77fa87a2d5bedb7d7c397f0914cda8f1e34feb..0000000000000000000000000000000000000000
--- a/conversations/conv_046881.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
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-      "speaker_id": "8028"
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-}
\ No newline at end of file
diff --git a/conversations/conv_046886.json b/conversations/conv_046886.json
deleted file mode 100644
index 7bfa9e9e472aa8a771d75a309ca1fbd4ac626b29..0000000000000000000000000000000000000000
--- a/conversations/conv_046886.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-124002.flac |",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.14663557965837,
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-      "utterance_id": "6753-76099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76099.flac |",
-      "real_speaker_id": "6753",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/154-124002.flac |",
-      "real_speaker_id": "154",
-      "position_frames": 51475
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.913904688796066,
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-      "duration": 3.7000545233760147,
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-      "utterance_id": "6753-76098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76098.flac |",
-      "real_speaker_id": "6753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.062938478637346,
-      "end_time": 32.0,
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-      "utterance_id": "6753-76098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6753-76098.flac |",
-      "real_speaker_id": "6753",
-      "position_frames": 59200
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_1.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6753/laugh/0034.wav",
-      "duration": 1.1,
-      "start_time": 15.05800684209401,
-      "speaker_id": "6753"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6753/laugh/0056.wav",
-      "duration": 1.057301354242434,
-      "start_time": 29.719396997576627,
-      "speaker_id": "6753"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6753/laugh/0087.wav",
-      "duration": 1.16,
-      "start_time": 28.85458570709971,
-      "speaker_id": "6753"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046890.json b/conversations/conv_046890.json
deleted file mode 100644
index 1d8ee08bb203f9dac50e152b675b8984d3cd4edc..0000000000000000000000000000000000000000
--- a/conversations/conv_046890.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "426-122819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122819.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.042296316463323,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "426-122822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122822.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.749513708414245,
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-      "duration": 4.602530053641151,
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-      "utterance_id": "2096-136868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 98748
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.90471505078193,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 172388
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 1.4646590906054513,
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-      "overlap": false,
-      "utterance_id": "426-122819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122819.flac |",
-      "real_speaker_id": "426",
-      "position_frames": 71395
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.18,
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-      "event_class": "cough",
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-      "duration": 1.18,
-      "start_time": 10.734061729825116,
-      "speaker_id": "426"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2096/laugh/0079.wav",
-      "duration": 1.44,
-      "start_time": 24.759706803371323,
-      "speaker_id": "2096"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046897.json b/conversations/conv_046897.json
deleted file mode 100644
index db3776787d29bbd296d8f8cea37bebe4335503ea..0000000000000000000000000000000000000000
--- a/conversations/conv_046897.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8346-244446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244446.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "77",
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "8346-244445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8346-244445.flac |",
-      "real_speaker_id": "8346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.653937456205544,
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-      "overlap": false,
-      "utterance_id": "1974-139742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139742.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.92153781356236,
-      "end_time": 29.32064507145811,
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-      "start_frame": 366744,
-      "duration_frames": 102385,
-      "overlap": false,
-      "utterance_id": "77-121526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/77-121526.flac |",
-      "real_speaker_id": "77",
-      "position_frames": 103055
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.0496745649746693,
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-      "utterance_id": "1974-139742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139742.flac |",
-      "real_speaker_id": "1974",
-      "position_frames": 82219
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/77/laugh/0059.wav",
-      "duration": 1.4,
-      "start_time": 21.386635970078395,
-      "speaker_id": "77"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046906.json b/conversations/conv_046906.json
deleted file mode 100644
index f4551eaef71f0eabc9ceb96274a2b0ca5cb94dbd..0000000000000000000000000000000000000000
--- a/conversations/conv_046906.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration_frames": 108815,
-      "overlap": false,
-      "utterance_id": "1132-138883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-138883.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "6557-66462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-66462.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.105579835477712,
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-      "real_speaker_id": "1132",
-      "position_frames": 108815
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.140781607448837,
-      "end_time": 30.19447839593592,
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-      "duration_frames": 96859,
-      "overlap": false,
-      "utterance_id": "6828-68770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 81736
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 32.0,
-      "duration": 1.536190264769509,
-      "start_frame": 487420,
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-      "overlap": false,
-      "utterance_id": "6557-65546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-65546.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.56,
-      "start_time": 18.42279602835151,
-      "speaker_id": "1132"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046907.json b/conversations/conv_046907.json
deleted file mode 100644
index ac65836e2ceea025ed90e96925860fed57615f42..0000000000000000000000000000000000000000
--- a/conversations/conv_046907.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.891292024723128,
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-      "start_frame": 0,
-      "duration_frames": 78260,
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-      "utterance_id": "8432-16000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-16000.flac |",
-      "real_speaker_id": "8432",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.739027125506874,
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\ No newline at end of file
diff --git a/conversations/conv_046911.json b/conversations/conv_046911.json
deleted file mode 100644
index 67e5ebfe7b26e319d652a2cb56b584c0d6d66c38..0000000000000000000000000000000000000000
--- a/conversations/conv_046911.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "318",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124164.flac |",
-      "real_speaker_id": "318",
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-      "speaker_id": 1,
-      "start_time": 22.833285260140723,
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-      "position_frames": 64321
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/318-124164.flac |",
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-      "position_frames": 67180
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-  "background_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_046927.json b/conversations/conv_046927.json
deleted file mode 100644
index 573cd59e73551173836762f0f00b43869fce861e..0000000000000000000000000000000000000000
--- a/conversations/conv_046927.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "3867",
-      "position_frames": 82429
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6906-65919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6906-65919.flac |",
-      "real_speaker_id": "6906",
-      "position_frames": 0
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-  "background_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6906/laugh/0001.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046931.json b/conversations/conv_046931.json
deleted file mode 100644
index 1afb9311af6e0587ba96c3ab5b054d14aef1213b..0000000000000000000000000000000000000000
--- a/conversations/conv_046931.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1031-133220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.308278892277208,
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-      "utterance_id": "5700-44605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-44605.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1031-133220.flac |",
-      "real_speaker_id": "1031",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5700",
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-      "real_speaker_id": "1031",
-      "position_frames": 240165
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-      "start_time": 22.503705376383966,
-      "speaker_id": "5700"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046946.json b/conversations/conv_046946.json
deleted file mode 100644
index 42f3486cdd862dd39f71942e2f8f44a132685ce6..0000000000000000000000000000000000000000
--- a/conversations/conv_046946.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "real_speaker_id": "4090",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "7065-74597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74597.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 61171
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-  "background_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046950.json b/conversations/conv_046950.json
deleted file mode 100644
index 0110b4782f42c1ad3195bf1364a7e3e3128c77a8..0000000000000000000000000000000000000000
--- a/conversations/conv_046950.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.520401527512437,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
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-      "real_speaker_id": "3540",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "3587-140711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3587-140711.flac |",
-      "real_speaker_id": "3587",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046951.json b/conversations/conv_046951.json
deleted file mode 100644
index 48ef83060b3b5a8b418df7f8b0a0a5d724376532..0000000000000000000000000000000000000000
--- a/conversations/conv_046951.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "681-152975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-152975.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 0
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-      "real_speaker_id": "681",
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-      "real_speaker_id": "8803",
-      "position_frames": 64581
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "paralinguistic_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046966.json b/conversations/conv_046966.json
deleted file mode 100644
index 16381fe5022743d585b2cd2a0d90c53f72af446c..0000000000000000000000000000000000000000
--- a/conversations/conv_046966.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "3357-28375",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3357-28375.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "245",
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-      "utterance_id": "3879-173592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 60751
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-      "event_class": "Blender",
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-      "duration": 1.36,
-      "start_time": 17.806781906299687,
-      "speaker_id": "3357"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/245/laugh/0133.wav",
-      "duration": 0.7253536604100562,
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-      "speaker_id": "245"
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-      "event_class": "cough",
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-      "duration": 0.6133648330324115,
-      "start_time": 16.71585749249378,
-      "speaker_id": "245"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046970.json b/conversations/conv_046970.json
deleted file mode 100644
index c72b58998db9369fc88ab425801182f032251df2..0000000000000000000000000000000000000000
--- a/conversations/conv_046970.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.758749952806554,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5248-34498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34498.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.487791791660569,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.237413686703096,
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-      "overlap": false,
-      "utterance_id": "7065-74597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74597.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.98478528009141,
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-      "duration": 6.491049239152474,
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-      "utterance_id": "5248-34498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34498.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 111913
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.354000538159813,
-      "end_time": 29.277674890157165,
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-      "utterance_id": "454-134728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
-      "real_speaker_id": "454",
-      "position_frames": 70582
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.943309738360668,
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-      "utterance_id": "5248-34498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5248-34498.flac |",
-      "real_speaker_id": "5248",
-      "position_frames": 215769
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-      "speaker_id": "454"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046982.json b/conversations/conv_046982.json
deleted file mode 100644
index 61b179bc09496a3e405a694f2f760d576e85c50d..0000000000000000000000000000000000000000
--- a/conversations/conv_046982.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3380-64300.flac |",
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-      "utterance_id": "1060-134451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3380-6175.flac |",
-      "real_speaker_id": "3380",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-151992.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1060-134451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1060-134451.flac |",
-      "real_speaker_id": "1060",
-      "position_frames": 133975
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-  ],
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_046985.json b/conversations/conv_046985.json
deleted file mode 100644
index 74303f812e4145af38f4bf01324358207447cc0b..0000000000000000000000000000000000000000
--- a/conversations/conv_046985.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7618-102366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102366.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "7467",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102366.flac |",
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-    {
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-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6402-62813",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_046989.json b/conversations/conv_046989.json
deleted file mode 100644
index 83f4c269de3fbc30a104c3c7ae323fa7b2a6cf68..0000000000000000000000000000000000000000
--- a/conversations/conv_046989.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.740673479802364,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "622-128666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/622-128666.flac |",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119386.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_046993.json b/conversations/conv_046993.json
deleted file mode 100644
index db0e20af2e84257fba7b80f69267f1ee3f173a41..0000000000000000000000000000000000000000
--- a/conversations/conv_046993.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5985",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147971.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "1699-141160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141160.flac |",
-      "real_speaker_id": "1699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.545393282843083,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147970.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.726390147801055,
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-      "utterance_id": "1699-141160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141160.flac |",
-      "real_speaker_id": "1699",
-      "position_frames": 61870
-    }
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 14.94176847062596,
-      "speaker_id": "2085"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_046994.json b/conversations/conv_046994.json
deleted file mode 100644
index 65b5c720746ebbb26d882f9bcc1aa58100436e5c..0000000000000000000000000000000000000000
--- a/conversations/conv_046994.json
+++ /dev/null
@@ -1,186 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/29-123032.flac |",
-      "real_speaker_id": "29",
-      "position_frames": 0
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-      "real_speaker_id": "29",
-      "position_frames": 0
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-      "real_speaker_id": "5038",
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-      "segment_id": "seg0006",
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-      "speaker_id": "29"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047002.json b/conversations/conv_047002.json
deleted file mode 100644
index 1473d497ee4a5c4a00f1653db2b229638fbe9b74..0000000000000000000000000000000000000000
--- a/conversations/conv_047002.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156724.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
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-    {
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-      "real_speaker_id": "6529",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "2531",
-      "position_frames": 107144
-    },
-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "6529-62556",
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-      "real_speaker_id": "6529",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047005.json b/conversations/conv_047005.json
deleted file mode 100644
index b3882d37749cf45d1c314f6482e3b17148a9364d..0000000000000000000000000000000000000000
--- a/conversations/conv_047005.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.555029335085168,
-      "duration": 4.555029335085168,
-      "start_frame": 0,
-      "duration_frames": 72880,
-      "overlap": false,
-      "utterance_id": "5808-54425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-54425.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.191151794881834,
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-      "overlap": false,
-      "utterance_id": "2730-154437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154437.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.657939982404805,
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-      "duration": 5.221422810704621,
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-      "overlap": false,
-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.108105907479164,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-54425.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 72880
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.393850236909266,
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-      "duration": 3.4250631401174814,
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-      "utterance_id": "2911-12359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-12359.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.504091988014103,
-      "end_time": 32.0,
-      "duration": 5.495908011985897,
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-      "utterance_id": "5808-54425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-54425.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 144227
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
-      "duration": 12.759365079365079,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5808/laugh/0073.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2730/laugh/0056.wav",
-      "duration": 1.08,
-      "start_time": 11.18056038933818,
-      "speaker_id": "2730"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2730/cough/0031.wav",
-      "duration": 0.4995336018798271,
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-      "speaker_id": "2730"
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\ No newline at end of file
diff --git a/conversations/conv_047009.json b/conversations/conv_047009.json
deleted file mode 100644
index 05a24b8e9290b39bc286c6730c58b23f32385285..0000000000000000000000000000000000000000
--- a/conversations/conv_047009.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11528.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.947536260567045,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-54108.flac |",
-      "real_speaker_id": "587",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11528.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 85142
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7705-101578",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101578.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "4110-11535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11535.flac |",
-      "real_speaker_id": "4110",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7705-101580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7705-101580.flac |",
-      "real_speaker_id": "7705",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_047013.json b/conversations/conv_047013.json
deleted file mode 100644
index b2d9b01ba2459df642526d8ace1789435c60c7c7..0000000000000000000000000000000000000000
--- a/conversations/conv_047013.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5764.flac |",
-      "real_speaker_id": "3215",
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-      "utterance_id": "5671-24628",
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-      "position_frames": 0
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-      "utterance_id": "3215-5757",
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-    {
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047014.json b/conversations/conv_047014.json
deleted file mode 100644
index aee97e4fda7872fb7d249d0a441105aa7a17a92c..0000000000000000000000000000000000000000
--- a/conversations/conv_047014.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6236-52083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6236-52083.flac |",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7926/laugh/0047.wav",
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-      "start_time": 25.05424430458368,
-      "speaker_id": "7926"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2654/laugh/0031.wav",
-      "duration": 0.9425013685091769,
-      "start_time": 31.057498631490823,
-      "speaker_id": "2654"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047025.json b/conversations/conv_047025.json
deleted file mode 100644
index 872302577609a3f592fb0ece67fffa594cd588f0..0000000000000000000000000000000000000000
--- a/conversations/conv_047025.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.240732072839463,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1579-128140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128140.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 2.941584972130607,
-      "end_time": 7.1322412018464805,
-      "duration": 4.190656229715874,
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-      "duration_frames": 67050,
-      "overlap": true,
-      "utterance_id": "5935-43305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-43305.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
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-      "utterance_id": "1579-128155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128155.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128140.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 51851
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.90652023880985,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-55927.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.276065608841304,
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-      "utterance_id": "1579-128155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128155.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 87283
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.910734365469764,
-      "end_time": 32.0,
-      "duration": 2.0892656345302356,
-      "start_frame": 478571,
-      "duration_frames": 33428,
-      "overlap": false,
-      "utterance_id": "1579-128140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128140.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 125546
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5935/laugh/0002.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 6.753663629811401,
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 29.956688492125373,
-      "speaker_id": "1579"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047029.json b/conversations/conv_047029.json
deleted file mode 100644
index 4f4dd8838b9727a3f395c262724c9f52dab73409..0000000000000000000000000000000000000000
--- a/conversations/conv_047029.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.08679760714686,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3796-16817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16817.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 6.042646866010905,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28015.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.678238703878192,
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-      "utterance_id": "3796-16815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16815.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.89475111295847,
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-      "duration_frames": 53110,
-      "overlap": false,
-      "utterance_id": "4236-8927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 56643
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.45934335007609,
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-      "duration": 4.627454257070771,
-      "start_frame": 423349,
-      "duration_frames": 74039,
-      "overlap": false,
-      "utterance_id": "3796-6400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-6400.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3796/laugh/0093.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4236/laugh/0060.wav",
-      "duration": 1.24,
-      "start_time": 15.440697362800247,
-      "speaker_id": "4236"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4236/cough/0084.wav",
-      "duration": 1.3963041170129342,
-      "start_time": 10.056141545897397,
-      "speaker_id": "4236"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047033.json b/conversations/conv_047033.json
deleted file mode 100644
index d97b1c9a75a4d4476591132210a71188723ef522..0000000000000000000000000000000000000000
--- a/conversations/conv_047033.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3526-176651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3526-176651.flac |",
-      "real_speaker_id": "3526",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "1737",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.487269028102592,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3526-176651.flac |",
-      "real_speaker_id": "3526",
-      "position_frames": 66029
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1737-142397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-142397.flac |",
-      "real_speaker_id": "1737",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 54542
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
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-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047043.json b/conversations/conv_047043.json
deleted file mode 100644
index 72fbddc0b5129accddfe80e48ca24de9e74ac664..0000000000000000000000000000000000000000
--- a/conversations/conv_047043.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6084-2159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
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-    {
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-      "segment_id": "seg0002",
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-      "segment_id": "seg0003",
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-      "start_time": 19.990927843027485,
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-      "utterance_id": "6084-2159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
-      "position_frames": 76189
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1653-142352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142352.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 57847
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.024468395955807,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
-      "position_frames": 148458
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7090/laugh/0078.wav",
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-      "duration": 1.64,
-      "start_time": 23.359457939236172,
-      "speaker_id": "1653"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047044.json b/conversations/conv_047044.json
deleted file mode 100644
index 90c8d22d2b49952e9b1f35044b2ab70ebb7e966f..0000000000000000000000000000000000000000
--- a/conversations/conv_047044.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.422958054033563,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76250.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 13.260185543247353,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76262.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-7140.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.311186961610623,
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-      "utterance_id": "4441-76250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76250.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 87047
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-  "background_events": [
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-      "speaker_id": "3909"
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-}
\ No newline at end of file
diff --git a/conversations/conv_047048.json b/conversations/conv_047048.json
deleted file mode 100644
index 9d8a1a6ba351732024bc091b0897f24a32458667..0000000000000000000000000000000000000000
--- a/conversations/conv_047048.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1271-136861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-136861.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8576-285176.flac |",
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-      "real_speaker_id": "4957",
-      "position_frames": 0
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-      "real_speaker_id": "1271",
-      "position_frames": 92727
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4957-36386.flac |",
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-      "position_frames": 0
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "1271"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1271/laugh/0003.wav",
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-      "speaker_id": "8576"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047052.json b/conversations/conv_047052.json
deleted file mode 100644
index 36a9cf26dc890a6fbe1a5925ee720369d7f2be8e..0000000000000000000000000000000000000000
--- a/conversations/conv_047052.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": "217"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047055.json b/conversations/conv_047055.json
deleted file mode 100644
index 7e15b707405e5378a8e6111b3afb4d5460669d49..0000000000000000000000000000000000000000
--- a/conversations/conv_047055.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.697439379973242,
-      "duration": 5.697439379973242,
-      "start_frame": 0,
-      "duration_frames": 91159,
-      "overlap": false,
-      "utterance_id": "2013-147610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147610.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.466291963863902,
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-      "duration": 5.610954621491278,
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-      "utterance_id": "5874-52159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52159.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.182817798516417,
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-      "utterance_id": "5874-52159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52159.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 89775
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.306599897473568,
-      "end_time": 23.94286957977277,
-      "duration": 5.636269682299199,
-      "start_frame": 292905,
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-      "overlap": false,
-      "utterance_id": "3982-178459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3982-178459.flac |",
-      "real_speaker_id": "3982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.387626443379883,
-      "end_time": 30.656624413825945,
-      "duration": 6.268997970446062,
-      "start_frame": 390202,
-      "duration_frames": 100303,
-      "overlap": false,
-      "utterance_id": "5874-52159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5874-52159.flac |",
-      "real_speaker_id": "5874",
-      "position_frames": 169052
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.497806450087865,
-      "end_time": 32.0,
-      "duration": 0.5021935499121355,
-      "start_frame": 503964,
-      "duration_frames": 8035,
-      "overlap": false,
-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/laugh/0135.wav",
-      "duration": 1.0,
-      "start_time": 2.1718268107163254,
-      "speaker_id": "2013"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5874/laugh/0080.wav",
-      "duration": 0.8932625468903007,
-      "start_time": 12.328539469398967,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3982/cough/0048.wav",
-      "duration": 0.6541554868785728,
-      "start_time": 17.503224315564538,
-      "speaker_id": "3982"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5874/laugh/0158.wav",
-      "duration": 1.26,
-      "start_time": 25.544935087254824,
-      "speaker_id": "5874"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047064.json b/conversations/conv_047064.json
deleted file mode 100644
index 74ce69821656618f8e806178beba9e4ebb5018df..0000000000000000000000000000000000000000
--- a/conversations/conv_047064.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19573833056965,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4738-58078",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-58078.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.516121797102425,
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-      "utterance_id": "3885-12149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-12149.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.981164675540896,
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-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.492291097739034,
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-      "overlap": false,
-      "utterance_id": "4738-291945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-291945.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.617529031338243,
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-      "utterance_id": "3885-12149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-12149.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 73726
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.888653390527757,
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-      "duration_frames": 68913,
-      "overlap": true,
-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 84102
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-      "start_time": 9.752028190562699
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_8.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3885/laugh/0113.wav",
-      "duration": 0.665831092047877,
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-      "speaker_id": "3885"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047068.json b/conversations/conv_047068.json
deleted file mode 100644
index e5ad5ae1957de97c04a453999d6808d77a862483..0000000000000000000000000000000000000000
--- a/conversations/conv_047068.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.578797156362269,
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-      "overlap": false,
-      "utterance_id": "4098-11547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11547.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.550874057305979,
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-      "overlap": false,
-      "utterance_id": "4098-11546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11546.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.643885946954914,
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-      "utterance_id": "4098-11547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4098-11547.flac |",
-      "real_speaker_id": "4098",
-      "position_frames": 101101
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.675030443296528,
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-      "utterance_id": "6505-231837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6505-231837.flac |",
-      "real_speaker_id": "6505",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1714/laugh/0030.wav",
-      "duration": 0.9469791242805616,
-      "start_time": 0.5695808222967346,
-      "speaker_id": "1714"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6505/cough/0105.wav",
-      "duration": 0.6547162677757503,
-      "start_time": 31.34528373222425,
-      "speaker_id": "6505"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047072.json b/conversations/conv_047072.json
deleted file mode 100644
index 69adc1f56e54a8d88085d55badf11fe412ae6982..0000000000000000000000000000000000000000
--- a/conversations/conv_047072.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.801910143519526,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "614-12876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.4863393381984755,
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-      "duration_frames": 63081,
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-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.374138827521335,
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-      "duration_frames": 92067,
-      "overlap": false,
-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 63081
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.37491564672066,
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-      "duration_frames": 94390,
-      "overlap": true,
-      "utterance_id": "614-161065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-161065.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.793707881769006,
-      "end_time": 29.799972519609806,
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-      "duration_frames": 80100,
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-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 155148
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.51557654480853,
-      "end_time": 32.0,
-      "duration": 1.4844234551914717,
-      "start_frame": 488249,
-      "duration_frames": 23750,
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-      "utterance_id": "614-12876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 108830
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377982.wav",
-      "duration": 4.825361223867871,
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2696/cough/0067.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047080.json b/conversations/conv_047080.json
deleted file mode 100644
index f29d7575298610ead265b290155314b30997d2c8..0000000000000000000000000000000000000000
--- a/conversations/conv_047080.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6075-57156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6075-57156.flac |",
-      "real_speaker_id": "6075",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.3431636840490486,
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047087.json b/conversations/conv_047087.json
deleted file mode 100644
index 5718a00cddf4c2623d7c804ec98c0b1ceab84fb1..0000000000000000000000000000000000000000
--- a/conversations/conv_047087.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_047090.json b/conversations/conv_047090.json
deleted file mode 100644
index 3ab2e7d755c29305863573e1b50d69e5476293c7..0000000000000000000000000000000000000000
--- a/conversations/conv_047090.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 111027
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_047091.json b/conversations/conv_047091.json
deleted file mode 100644
index 5e3a02a2ecaaa0d39ca7484bc30c7698e943b0cd..0000000000000000000000000000000000000000
--- a/conversations/conv_047091.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "position_frames": 94545
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047101.json b/conversations/conv_047101.json
deleted file mode 100644
index 5d28e918045d1d4eb5e7ca14bcdb943a5a96ec5d..0000000000000000000000000000000000000000
--- a/conversations/conv_047101.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121744.flac |",
-      "real_speaker_id": "517",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121744.flac |",
-      "real_speaker_id": "517",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9555.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/517-121739.flac |",
-      "real_speaker_id": "517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.95322263626533,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "6249-290631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-290631.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
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-    {
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-      "duration": 1.08,
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-      "speaker_id": "517"
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\ No newline at end of file
diff --git a/conversations/conv_047106.json b/conversations/conv_047106.json
deleted file mode 100644
index 9605be27aa26dfbb61bcd199da48c0e0f2dfe7fe..0000000000000000000000000000000000000000
--- a/conversations/conv_047106.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6735-284431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-284431.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
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-      "position_frames": 0
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
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-      "real_speaker_id": "4088",
-      "position_frames": 65944
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-    {
-      "segment_id": "seg0006",
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-      "duration": 1.273429378014768,
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-      "utterance_id": "6735-284431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-284431.flac |",
-      "real_speaker_id": "6735",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_047110.json b/conversations/conv_047110.json
deleted file mode 100644
index 5edcbc529aea92255c7820ce6afba9ab60c4ce89..0000000000000000000000000000000000000000
--- a/conversations/conv_047110.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "5269",
-      "position_frames": 189217
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2712-3534",
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-      "real_speaker_id": "2712",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047117.json b/conversations/conv_047117.json
deleted file mode 100644
index a514fa0eb3950cd4e63ac28edbb8260f1f45b1df..0000000000000000000000000000000000000000
--- a/conversations/conv_047117.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-  "background_events": [
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-      "speaker_id": "3992"
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\ No newline at end of file
diff --git a/conversations/conv_047121.json b/conversations/conv_047121.json
deleted file mode 100644
index 95def929cee722f11130ec733c0be32f43ce45b6..0000000000000000000000000000000000000000
--- a/conversations/conv_047121.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-111784.flac |",
-      "real_speaker_id": "7640",
-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39669.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4654.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.28347345773173,
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-      "utterance_id": "2598-4654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2598-4654.flac |",
-      "real_speaker_id": "2598",
-      "position_frames": 62581
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047137.json b/conversations/conv_047137.json
deleted file mode 100644
index 09152a0dfdffa565ccd86aed0fbe2ee500317686..0000000000000000000000000000000000000000
--- a/conversations/conv_047137.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.23881408441653,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26853.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "5911",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95969.flac |",
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-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "duration_frames": 86816,
-      "overlap": false,
-      "utterance_id": "4807-26853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26853.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 76124
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.22750302964137,
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-      "utterance_id": "4807-26852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26852.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.073630898130592,
-      "start_time": 28.074359311880848,
-      "speaker_id": "4807"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047140.json b/conversations/conv_047140.json
deleted file mode 100644
index 5d7fcd8a9fb1f34d39f490ee915427e56960353d..0000000000000000000000000000000000000000
--- a/conversations/conv_047140.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3138-173544.flac |",
-      "real_speaker_id": "3138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
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-      "utterance_id": "7467-69610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-69610.flac |",
-      "real_speaker_id": "7467",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2067-143536.flac |",
-      "real_speaker_id": "2067",
-      "position_frames": 74687
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "real_speaker_id": "3138",
-      "position_frames": 77837
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_047147.json b/conversations/conv_047147.json
deleted file mode 100644
index a0c1d9639d8f0e67d0d538da0c6273602bd8c047..0000000000000000000000000000000000000000
--- a/conversations/conv_047147.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.9650411251061355,
-      "duration": 6.9650411251061355,
-      "start_frame": 0,
-      "duration_frames": 111440,
-      "overlap": false,
-      "utterance_id": "7059-77900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77900.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.638595737320555,
-      "end_time": 10.873426289717964,
-      "duration": 3.2348305523974084,
-      "start_frame": 122217,
-      "duration_frames": 51757,
-      "overlap": false,
-      "utterance_id": "1779-142733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.867633266767658,
-      "end_time": 15.770582486003535,
-      "duration": 4.902949219235877,
-      "start_frame": 173882,
-      "duration_frames": 78447,
-      "overlap": true,
-      "utterance_id": "2929-85685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-85685.flac |",
-      "real_speaker_id": "2929",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.038004542793736,
-      "end_time": 23.32863340767852,
-      "duration": 6.290628864884784,
-      "start_frame": 272608,
-      "duration_frames": 100650,
-      "overlap": false,
-      "utterance_id": "7059-88364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-88364.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.67053815415092,
-      "end_time": 30.496702176343888,
-      "duration": 6.826164022192971,
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-      "overlap": false,
-      "utterance_id": "2929-85685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2929-85685.flac |",
-      "real_speaker_id": "2929",
-      "position_frames": 78447
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.251951653812746,
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-      "duration": 0.7480483461872538,
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-      "overlap": false,
-      "utterance_id": "1779-142733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 51757
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_0.wav",
-      "duration": 0.31501133786848073,
-      "start_time": 15.643302252421302
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1779/cough/0004.wav",
-      "duration": 1.0057405274585813,
-      "start_time": 30.99425947254142,
-      "speaker_id": "1779"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047151.json b/conversations/conv_047151.json
deleted file mode 100644
index c1829b10c423c5f7131a5c42acb8a567e69bc913..0000000000000000000000000000000000000000
--- a/conversations/conv_047151.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.5316069560197816,
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-      "overlap": false,
-      "utterance_id": "4214-7146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.2253579873048706,
-      "end_time": 10.551030975846052,
-      "duration": 6.325672988541181,
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-      "duration_frames": 101210,
-      "overlap": false,
-      "utterance_id": "669-129061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129061.flac |",
-      "real_speaker_id": "669",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.298545160060193,
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-      "duration": 6.205812104836275,
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-      "duration_frames": 99292,
-      "overlap": false,
-      "utterance_id": "666-11243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11243.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.906652770409465,
-      "end_time": 22.026084069126586,
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-      "duration_frames": 65910,
-      "overlap": false,
-      "utterance_id": "669-129074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129074.flac |",
-      "real_speaker_id": "669",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.389810558367515,
-      "end_time": 27.225315499019274,
-      "duration": 4.835504940651761,
-      "start_frame": 358236,
-      "duration_frames": 77368,
-      "overlap": false,
-      "utterance_id": "4214-7146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 56505
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.022017346056487,
-      "end_time": 32.0,
-      "duration": 3.9779826539435135,
-      "start_frame": 448352,
-      "duration_frames": 63647,
-      "overlap": false,
-      "utterance_id": "666-11243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11243.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 99292
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
-      "duration": 1.0478221987571295,
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-  "paralinguistic_events": [
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-      "start_time": 3.615396358175908,
-      "speaker_id": "669"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/669/laugh/0051.wav",
-      "duration": 0.6526372300427286,
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-      "speaker_id": "669"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047156.json b/conversations/conv_047156.json
deleted file mode 100644
index b6c812094cc12f186d2981e199d624820664d368..0000000000000000000000000000000000000000
--- a/conversations/conv_047156.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5678-43301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43301.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.610251684425753,
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-      "overlap": false,
-      "utterance_id": "6557-66462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-66462.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5039-1189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1189.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1189.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 60785
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1189.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 147861
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6557-65546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6557-65546.flac |",
-      "real_speaker_id": "6557",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_3.wav",
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5039/laugh/0009.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5039/laugh/0110.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6557/cough/0106.wav",
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-      "speaker_id": "6557"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047160.json b/conversations/conv_047160.json
deleted file mode 100644
index b9c09f5c0fa401b42c334f063a6bb7bd40bf4531..0000000000000000000000000000000000000000
--- a/conversations/conv_047160.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.4369393058230004,
-      "duration": 4.4369393058230004,
-      "start_frame": 0,
-      "duration_frames": 70991,
-      "overlap": false,
-      "utterance_id": "3925-57460",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57460.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.7548592261916,
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-      "utterance_id": "8803-296082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296082.flac |",
-      "real_speaker_id": "8803",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3925-57460.flac |",
-      "real_speaker_id": "3925",
-      "position_frames": 70991
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3925/cough/0059.wav",
-      "duration": 1.0606945344819296,
-      "start_time": 30.93930546551807,
-      "speaker_id": "3925"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047176.json b/conversations/conv_047176.json
deleted file mode 100644
index eb27ad3f52dc1b449b2f8f967bc0c709bc90db54..0000000000000000000000000000000000000000
--- a/conversations/conv_047176.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.33361509875817,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.27982420677731,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "730-358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-358.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.68397708156577,
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-      "utterance_id": "1421-8539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8539.flac |",
-      "real_speaker_id": "1421",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.341781125309383,
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-      "start_frame": 165468,
-      "duration_frames": 66088,
-      "overlap": false,
-      "utterance_id": "6758-72288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6758-72288.flac |",
-      "real_speaker_id": "6758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.10312288864938,
-      "end_time": 20.6268210783848,
-      "duration": 5.523698189735422,
-      "start_frame": 241649,
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-      "overlap": false,
-      "utterance_id": "730-358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-358.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 68477
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.433562031455786,
-      "end_time": 27.123043814852494,
-      "duration": 5.689481783396709,
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-      "duration_frames": 91031,
-      "overlap": false,
-      "utterance_id": "6758-72288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6758-72288.flac |",
-      "real_speaker_id": "6758",
-      "position_frames": 66088
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.549604445825686,
-      "end_time": 31.33361509875817,
-      "duration": 3.7840106529324826,
-      "start_frame": 440793,
-      "duration_frames": 60544,
-      "overlap": false,
-      "utterance_id": "730-360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-360.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1421/laugh/0070.wav",
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-      "start_time": 3.946648812386351,
-      "speaker_id": "1421"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6758/cough/0046.wav",
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-      "event_class": "cough",
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-      "duration": 0.777229067239228,
-      "start_time": 19.07959735427985,
-      "speaker_id": "730"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047182.json b/conversations/conv_047182.json
deleted file mode 100644
index d8c1c6d186f8806f0a0c1bd7209f635ac677c121..0000000000000000000000000000000000000000
--- a/conversations/conv_047182.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1421-8534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8534.flac |",
-      "real_speaker_id": "1421",
-      "position_frames": 0
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-      "real_speaker_id": "4104",
-      "position_frames": 68718
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-      "utterance_id": "500-125123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/500-125123.flac |",
-      "real_speaker_id": "500",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.035875373815614,
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-      "utterance_id": "1421-8539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8539.flac |",
-      "real_speaker_id": "1421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.823218228047452,
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-      "utterance_id": "4104-185522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-185522.flac |",
-      "real_speaker_id": "4104",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.211337073623696,
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-      "utterance_id": "1421-8534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8534.flac |",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "speaker_id": "1421"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047183.json b/conversations/conv_047183.json
deleted file mode 100644
index c8ff67e90aeaf365d27b8bc92f18117837529ab0..0000000000000000000000000000000000000000
--- a/conversations/conv_047183.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5825-53035",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-53035.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
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-      "position_frames": 96130
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "5825-50883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-50883.flac |",
-      "real_speaker_id": "5825",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_047195.json b/conversations/conv_047195.json
deleted file mode 100644
index 11d18bb0fa8ace8a24df8465132284e9f2fe78e1..0000000000000000000000000000000000000000
--- a/conversations/conv_047195.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "671-131040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
-      "real_speaker_id": "671",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "8643",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/671-131040.flac |",
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-    {
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-    {
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-      "event_class": "cough",
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-      "duration": 1.04,
-      "start_time": 10.78508035648985,
-      "speaker_id": "671"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/671/laugh/0093.wav",
-      "duration": 1.24,
-      "start_time": 30.76,
-      "speaker_id": "671"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/671/cough/0028.wav",
-      "duration": 0.9913556111335042,
-      "start_time": 31.008644388866497,
-      "speaker_id": "671"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047199.json b/conversations/conv_047199.json
deleted file mode 100644
index 5e948f36156edac30dd9fafeae7f03b8ec496124..0000000000000000000000000000000000000000
--- a/conversations/conv_047199.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.995883618161905,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.116422160728482,
-      "duration": 4.116422160728482,
-      "start_frame": 0,
-      "duration_frames": 65862,
-      "overlap": false,
-      "utterance_id": "501-125128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.803616670815457,
-      "end_time": 10.111885192434492,
-      "duration": 5.308268521619034,
-      "start_frame": 76857,
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-      "overlap": false,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.84727104931046,
-      "end_time": 15.89977820557063,
-      "duration": 5.052507156260169,
-      "start_frame": 173556,
-      "duration_frames": 80840,
-      "overlap": false,
-      "utterance_id": "1705-142318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1705-142318.flac |",
-      "real_speaker_id": "1705",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.13450776508867,
-      "end_time": 21.22554904835208,
-      "duration": 5.091041283263408,
-      "start_frame": 258152,
-      "duration_frames": 81456,
-      "overlap": false,
-      "utterance_id": "501-125127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125127.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.360413100569374,
-      "end_time": 25.68553149575382,
-      "duration": 4.325118395184448,
-      "start_frame": 341766,
-      "duration_frames": 69201,
-      "overlap": true,
-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 84932
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.88213485186331,
-      "end_time": 31.995883618161905,
-      "duration": 5.1137487662985945,
-      "start_frame": 430114,
-      "duration_frames": 81819,
-      "overlap": false,
-      "utterance_id": "501-125128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/501-125128.flac |",
-      "real_speaker_id": "501",
-      "position_frames": 65862
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.488239014599061,
-      "start_time": 19.741960265037115
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
-      "duration": 0.8380952380952381,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7957/laugh/0058.wav",
-      "duration": 1.16,
-      "start_time": 3.395655758266514,
-      "speaker_id": "7957"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047204.json b/conversations/conv_047204.json
deleted file mode 100644
index 768ee709e58f77b92f342eb6bb57fde264df5ca0..0000000000000000000000000000000000000000
--- a/conversations/conv_047204.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration_frames": 87089,
-      "overlap": false,
-      "utterance_id": "6106-58195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58195.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.476685472912758,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.237491593256063,
-      "end_time": 24.494273319322595,
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-      "overlap": false,
-      "utterance_id": "6106-58196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58196.flac |",
-      "real_speaker_id": "6106",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.791834007448934,
-      "end_time": 30.9143986867312,
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-      "duration_frames": 97961,
-      "overlap": false,
-      "utterance_id": "7120-76055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 100195
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.420103883178342,
-      "end_time": 32.0,
-      "duration": 0.5798961168216579,
-      "start_frame": 502721,
-      "duration_frames": 9278,
-      "overlap": false,
-      "utterance_id": "6695-71407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-71407.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "start_time": 0.07413443056320206
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7120/laugh/0026.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7120/cough/0090.wav",
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-      "start_time": 12.386941206519966,
-      "speaker_id": "7120"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6106/laugh/0092.wav",
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-      "start_time": 19.4090487193495,
-      "speaker_id": "6106"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6695/laugh/0129.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "6695"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047208.json b/conversations/conv_047208.json
deleted file mode 100644
index 529c3d752d1f8b9845367a976a7e904004d720b6..0000000000000000000000000000000000000000
--- a/conversations/conv_047208.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.65886161286911,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1100-135264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-135264.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.604059203386507,
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-      "real_speaker_id": "8425",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "8425-291444",
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-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.8236875895304,
-      "end_time": 29.25784163981873,
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-      "overlap": false,
-      "utterance_id": "1100-124547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-124547.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.588891539395345,
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-      "duration_frames": 33119,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 82153
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8684/laugh/0034.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047212.json b/conversations/conv_047212.json
deleted file mode 100644
index bf27f2f72661088306a5a8d7d30f94b163f862fa..0000000000000000000000000000000000000000
--- a/conversations/conv_047212.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.182688697230077,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "698-122863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-122863.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "698-122863",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/698/laugh/0081.wav",
-      "duration": 1.170841300115969,
-      "start_time": 5.2624685047770585,
-      "speaker_id": "698"
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 13.906435789405284,
-      "speaker_id": "3664"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047213.json b/conversations/conv_047213.json
deleted file mode 100644
index d2d3b120df057b99a34c4e160d54d98b9fc6ecc7..0000000000000000000000000000000000000000
--- a/conversations/conv_047213.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.499023615493652,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "559-289453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-289453.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.390743806553457,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2060-147963.flac |",
-      "real_speaker_id": "2060",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.677198685509362,
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-      "utterance_id": "559-126296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-126296.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.184958074909957,
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-      "utterance_id": "2060-147963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2060-147963.flac |",
-      "real_speaker_id": "2060",
-      "position_frames": 79492
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.821774086161167,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-126296.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 60332
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2060-147963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2060-147963.flac |",
-      "real_speaker_id": "2060",
-      "position_frames": 141929
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 0,
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_047224.json b/conversations/conv_047224.json
deleted file mode 100644
index 1311e3690747b232eeacbb219bc3bb73fe931add..0000000000000000000000000000000000000000
--- a/conversations/conv_047224.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123501.flac |",
-      "real_speaker_id": "446",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76250.flac |",
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-      "real_speaker_id": "446",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "4441-76263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76263.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.702337811160074,
-      "end_time": 32.0,
-      "duration": 5.297662188839926,
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-      "utterance_id": "6497-234106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6497-234106.flac |",
-      "real_speaker_id": "6497",
-      "position_frames": 0
-    }
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4441/laugh/0107.wav",
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-    {
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-      "speaker_id": "4441"
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-}
\ No newline at end of file
diff --git a/conversations/conv_047228.json b/conversations/conv_047228.json
deleted file mode 100644
index 7ff934bac7b4d180e731c3a0094a8726278cb595..0000000000000000000000000000000000000000
--- a/conversations/conv_047228.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.40020052180165,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "utterance_id": "62-121084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
-      "position_frames": 0
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-      "real_speaker_id": "458",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
-      "real_speaker_id": "62",
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-    {
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-      "start_time": 21.09705220428472,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2488.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 24.93681733068676,
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-      "duration_frames": 87414,
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-      "utterance_id": "62-121084",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/62-121084.flac |",
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-      "position_frames": 217726
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-  ],
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_047232.json b/conversations/conv_047232.json
deleted file mode 100644
index 8aa07dab65883e8cbc4e66b659532cfb786e5617..0000000000000000000000000000000000000000
--- a/conversations/conv_047232.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2391-145015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
-      "real_speaker_id": "2391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.404706874515788,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32886.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
-      "real_speaker_id": "2391",
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-    {
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_047239.json b/conversations/conv_047239.json
deleted file mode 100644
index ffdfb8438983dafe1945d3f5bcc26eccb9565d6d..0000000000000000000000000000000000000000
--- a/conversations/conv_047239.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.47181338467362,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.4688582164113315,
-      "duration": 6.4688582164113315,
-      "start_frame": 0,
-      "duration_frames": 103501,
-      "overlap": false,
-      "utterance_id": "254-12312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-12312.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.868424920598527,
-      "end_time": 12.981472410965605,
-      "duration": 6.113047490367078,
-      "start_frame": 109894,
-      "duration_frames": 97808,
-      "overlap": false,
-      "utterance_id": "348-132611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132611.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.344647464273221,
-      "end_time": 18.586403708183823,
-      "duration": 6.241756243910601,
-      "start_frame": 197514,
-      "duration_frames": 99868,
-      "overlap": true,
-      "utterance_id": "254-127705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-127705.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.534813440739704,
-      "end_time": 25.285134564009372,
-      "duration": 4.750321123269669,
-      "start_frame": 328557,
-      "duration_frames": 76005,
-      "overlap": false,
-      "utterance_id": "348-132751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132751.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.17237193817449,
-      "end_time": 31.47181338467362,
-      "duration": 5.29944144649913,
-      "start_frame": 418757,
-      "duration_frames": 84791,
-      "overlap": false,
-      "utterance_id": "254-27760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-27760.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_3.wav",
-      "duration": 0.22834467120181406,
-      "start_time": 7.08153076277407
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/254/laugh/0049.wav",
-      "duration": 1.334822592354918,
-      "start_time": 28.971646219139824,
-      "speaker_id": "254"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047244.json b/conversations/conv_047244.json
deleted file mode 100644
index d98ecfdbba1ba55b14bbede7f36dd06e023be99d..0000000000000000000000000000000000000000
--- a/conversations/conv_047244.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.651377976877332,
-      "duration": 6.651377976877332,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3607-29116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-29116.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.111600414690232,
-      "end_time": 10.560506664211609,
-      "duration": 3.4489062495213774,
-      "start_frame": 113785,
-      "duration_frames": 55182,
-      "overlap": false,
-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.83414829058937,
-      "end_time": 13.675025098850798,
-      "duration": 3.8408768082614273,
-      "start_frame": 157346,
-      "duration_frames": 61454,
-      "overlap": true,
-      "utterance_id": "3607-29116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-29116.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 106422
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.106441050623857,
-      "end_time": 18.930209946628846,
-      "duration": 3.823768896004988,
-      "start_frame": 241703,
-      "duration_frames": 61180,
-      "overlap": false,
-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 55182
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.080917551863912,
-      "end_time": 24.41871202431104,
-      "duration": 5.337794472447129,
-      "start_frame": 305294,
-      "duration_frames": 85404,
-      "overlap": false,
-      "utterance_id": "3607-135982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3607-135982.flac |",
-      "real_speaker_id": "3607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.225252488178494,
-      "end_time": 29.2240849015973,
-      "duration": 3.998832413418805,
-      "start_frame": 403604,
-      "duration_frames": 63981,
-      "overlap": false,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.008179713062766,
-      "end_time": 32.0,
-      "duration": 1.9918202869372337,
-      "start_frame": 480130,
-      "duration_frames": 31869,
-      "overlap": false,
-      "utterance_id": "328-129766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
-      "real_speaker_id": "328",
-      "position_frames": 116362
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
-      "duration": 1.0652834467120182,
-      "start_time": 30.456562394864655
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3607/laugh/0079.wav",
-      "duration": 0.6602366535056546,
-      "start_time": 0,
-      "speaker_id": "3607"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3607/cough/0061.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "3607"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3607/laugh/0040.wav",
-      "duration": 1.12,
-      "start_time": 10.647850651777274,
-      "speaker_id": "3607"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3607/laugh/0053.wav",
-      "duration": 1.48,
-      "start_time": 22.911106157111615,
-      "speaker_id": "3607"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3079/laugh/0037.wav",
-      "duration": 1.3445809994721458,
-      "start_time": 25.90446315731918,
-      "speaker_id": "3079"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047245.json b/conversations/conv_047245.json
deleted file mode 100644
index 68d74f02c434a39f0967f8ba9720930436b2ad57..0000000000000000000000000000000000000000
--- a/conversations/conv_047245.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.61985312874427,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "duration": 4.254963524874439,
-      "start_frame": 0,
-      "duration_frames": 68079,
-      "overlap": false,
-      "utterance_id": "8138-293531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293531.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.675037730135453,
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-      "overlap": true,
-      "utterance_id": "7713-106729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106729.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.37255077892941,
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-      "duration": 3.4119952831700653,
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-      "duration_frames": 54591,
-      "overlap": false,
-      "utterance_id": "8009-284678",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8009-284678.flac |",
-      "real_speaker_id": "8009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.00175960280085,
-      "end_time": 20.455785015191246,
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-      "duration_frames": 87264,
-      "overlap": false,
-      "utterance_id": "7713-106729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106729.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 78598
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.7824349907371,
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-      "overlap": false,
-      "utterance_id": "8009-283568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8009-283568.flac |",
-      "real_speaker_id": "8009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.800136355144197,
-      "end_time": 30.61985312874427,
-      "duration": 3.8197167736000748,
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-      "duration_frames": 61115,
-      "overlap": true,
-      "utterance_id": "7713-106733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106733.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.6964209171585232,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7713/laugh/0034.wav",
-      "duration": 1.44,
-      "start_time": 3.193113612790285,
-      "speaker_id": "7713"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8009/laugh/0147.wav",
-      "duration": 0.9723697109618248,
-      "start_time": 13.786297010174755,
-      "speaker_id": "8009"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047249.json b/conversations/conv_047249.json
deleted file mode 100644
index 40f6b3aff34c870be41188de18acb5d3efdeb4bd..0000000000000000000000000000000000000000
--- a/conversations/conv_047249.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 4.518540686472205,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4872-20425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.402519175663334,
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-      "duration_frames": 87608,
-      "overlap": true,
-      "utterance_id": "8710-286293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8710-286293.flac |",
-      "real_speaker_id": "8710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "4872-20425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 72296
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.34132831543404,
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-      "overlap": false,
-      "utterance_id": "248-130652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130652.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.87476968753321,
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-      "duration_frames": 87271,
-      "overlap": false,
-      "utterance_id": "4872-20425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 153635
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.80401938434267,
-      "end_time": 32.0,
-      "duration": 2.19598061565733,
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-      "overlap": false,
-      "utterance_id": "8710-286293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8710-286293.flac |",
-      "real_speaker_id": "8710",
-      "position_frames": 87608
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8710/cough/0055.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047253.json b/conversations/conv_047253.json
deleted file mode 100644
index e9aecccb978bab803e789d2107c9bae456955b41..0000000000000000000000000000000000000000
--- a/conversations/conv_047253.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.5448945060677435,
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-      "start_frame": 0,
-      "duration_frames": 56718,
-      "overlap": false,
-      "utterance_id": "1731-142320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
-      "real_speaker_id": "1731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.667140593150901,
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-      "real_speaker_id": "1789",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "real_speaker_id": "1731",
-      "position_frames": 147359
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.50645479410178,
-      "end_time": 32.0,
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-      "utterance_id": "4447-14919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4447-14919.flac |",
-      "real_speaker_id": "4447",
-      "position_frames": 0
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-  "background_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.72,
-      "start_time": 31.140410928100838,
-      "speaker_id": "1731"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4447/cough/0043.wav",
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-      "start_time": 30.852107049357716,
-      "speaker_id": "4447"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047265.json b/conversations/conv_047265.json
deleted file mode 100644
index ebf1e3038c5142b88496076b1e7343e85e91440a..0000000000000000000000000000000000000000
--- a/conversations/conv_047265.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8157293385448803,
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-      "utterance_id": "3945-890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3945-890.flac |",
-      "real_speaker_id": "3945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.2594153301531925,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14501.flac |",
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-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "3945-29110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3945-29110.flac |",
-      "real_speaker_id": "3945",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "4411-14494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4411-14494.flac |",
-      "real_speaker_id": "4411",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1094-129661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1094-129661.flac |",
-      "real_speaker_id": "1094",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.69522634670119,
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-      "utterance_id": "3945-890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3945-890.flac |",
-      "real_speaker_id": "3945",
-      "position_frames": 61051
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.0,
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-    {
-      "event_class": "laugh",
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-      "start_time": 25.62291800409554,
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-    }
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\ No newline at end of file
diff --git a/conversations/conv_047269.json b/conversations/conv_047269.json
deleted file mode 100644
index 8c9a0d57b3d2511cb520761b13ef3601211148a8..0000000000000000000000000000000000000000
--- a/conversations/conv_047269.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-148993.flac |",
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-      "position_frames": 0
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-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "duration": 6.782807393187776,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 59960
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.712204364013758,
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-      "utterance_id": "3046-137739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3046-137739.flac |",
-      "real_speaker_id": "3046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.174382255648254,
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-      "utterance_id": "1723-141149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
-      "real_speaker_id": "1723",
-      "position_frames": 168484
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1723/laugh/0077.wav",
-      "duration": 1.68,
-      "start_time": 28.35757109472432,
-      "speaker_id": "1723"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047273.json b/conversations/conv_047273.json
deleted file mode 100644
index b94cb02c42682ed27b022bbbaad129d39cc4dfca..0000000000000000000000000000000000000000
--- a/conversations/conv_047273.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.822411641075128,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.031900827583979,
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-      "utterance_id": "8302-281331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281331.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.92762369144105,
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-      "overlap": false,
-      "utterance_id": "1545-161007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "8302-281331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8302-281331.flac |",
-      "real_speaker_id": "8302",
-      "position_frames": 96510
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.72609225092846,
-      "end_time": 26.138605792994007,
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-      "duration_frames": 86600,
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-      "utterance_id": "1545-161007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 102031
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.33964163476994,
-      "end_time": 30.822411641075128,
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-      "utterance_id": "3100-142810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3100-142810.flac |",
-      "real_speaker_id": "3100",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
-      "duration": 2.1968795586475167,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1545/laugh/0033.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8302/cough/0066.wav",
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-      "start_time": 12.537847773047,
-      "speaker_id": "8302"
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-}
\ No newline at end of file
diff --git a/conversations/conv_047278.json b/conversations/conv_047278.json
deleted file mode 100644
index d9f47b2c5307544e3d8283a9f1e9920be7db5d89..0000000000000000000000000000000000000000
--- a/conversations/conv_047278.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.634968658887635,
-      "duration": 6.634968658887635,
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-      "overlap": false,
-      "utterance_id": "5118-111612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5118-111612.flac |",
-      "real_speaker_id": "5118",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-155646.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_047281.json b/conversations/conv_047281.json
deleted file mode 100644
index ac6b138f7c614571cfb8482e8cfa0717406a2f1c..0000000000000000000000000000000000000000
--- a/conversations/conv_047281.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-141174.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 24.190908101594815,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-133834.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-20043.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_047286.json b/conversations/conv_047286.json
deleted file mode 100644
index e13b2f9a3ddae725e5bcad32d8b27b896af90227..0000000000000000000000000000000000000000
--- a/conversations/conv_047286.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "real_speaker_id": "6563",
-      "position_frames": 59283
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157880.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 52321
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2925-162505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
-      "real_speaker_id": "2925",
-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047290.json b/conversations/conv_047290.json
deleted file mode 100644
index 5b4ef01ec48d12dc6698879c567694bafe60e094..0000000000000000000000000000000000000000
--- a/conversations/conv_047290.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-126843.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-130001.flac |",
-      "real_speaker_id": "402",
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-      "position_frames": 83393
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
-      "position_frames": 156526
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_047297.json b/conversations/conv_047297.json
deleted file mode 100644
index 395648f4d2c30dde2b305a0ecce38d793f0115a6..0000000000000000000000000000000000000000
--- a/conversations/conv_047297.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3852-175448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.906476544375323,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.52980474363396,
-      "end_time": 19.481236936297325,
-      "duration": 5.951432192663366,
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-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 89989
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.63458217950525,
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-      "duration": 5.106886805915157,
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-      "duration_frames": 81710,
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-      "utterance_id": "3852-175448",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3852-175448.flac |",
-      "real_speaker_id": "3852",
-      "position_frames": 91748
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.14274316577205,
-      "end_time": 30.948782437008894,
-      "duration": 4.806039271236844,
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-      "duration_frames": 76896,
-      "overlap": false,
-      "utterance_id": "6853-12339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6853-12339.flac |",
-      "real_speaker_id": "6853",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.27602986381602,
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-      "duration": 0.7239701361839792,
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-      "utterance_id": "6673-72311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 185211
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
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-      "event_class": "cough",
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-      "duration": 0.8100048000111357,
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-      "speaker_id": "3852"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047300.json b/conversations/conv_047300.json
deleted file mode 100644
index 04a19288bb1209ed1723bfc716879e2216e32bf0..0000000000000000000000000000000000000000
--- a/conversations/conv_047300.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.954757721127724,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6794-73984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6794-73984.flac |",
-      "real_speaker_id": "6794",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.475218838781238,
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-      "utterance_id": "8580-287363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287363.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1961-145733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-145733.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.623371917961048,
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-      "utterance_id": "8580-287363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287363.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 85703
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.53511913908168,
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-      "utterance_id": "1961-145733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1961-145733.flac |",
-      "real_speaker_id": "1961",
-      "position_frames": 84065
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.773544720441464,
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-      "utterance_id": "8580-287364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287364.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_0.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "duration": 0.96,
-      "start_time": 16.292199727561687,
-      "speaker_id": "1961"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047301.json b/conversations/conv_047301.json
deleted file mode 100644
index b0f07f8df57b5e84961a57b3c46c6274d34b5158..0000000000000000000000000000000000000000
--- a/conversations/conv_047301.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.16065387857015,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "6030-57827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57827.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/272-130227.flac |",
-      "real_speaker_id": "272",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_047316.json b/conversations/conv_047316.json
deleted file mode 100644
index a7cb81a553ce144456367613bdc36a0f1249883d..0000000000000000000000000000000000000000
--- a/conversations/conv_047316.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3796-16816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3796-16816.flac |",
-      "real_speaker_id": "3796",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": "7135"
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-      "speaker_id": "2532"
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-}
\ No newline at end of file
diff --git a/conversations/conv_047320.json b/conversations/conv_047320.json
deleted file mode 100644
index 0e52865427b2855a301574fc4b3107ff6322f1f8..0000000000000000000000000000000000000000
--- a/conversations/conv_047320.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150124.flac |",
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-      "utterance_id": "7967-117095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-117095.flac |",
-      "real_speaker_id": "7967",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 19.63226690741832,
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-      "utterance_id": "2185-150123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 103072
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.070262371024146,
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-      "duration": 1.9297376289758539,
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-      "utterance_id": "2185-150123",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2185-150123.flac |",
-      "real_speaker_id": "2185",
-      "position_frames": 87813
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047336.json b/conversations/conv_047336.json
deleted file mode 100644
index c6d9ea11c59b19c3c1fb08178092f30ec61d1f52..0000000000000000000000000000000000000000
--- a/conversations/conv_047336.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "position_frames": 0
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-      "real_speaker_id": "3314",
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047341.json b/conversations/conv_047341.json
deleted file mode 100644
index 08ee062f28f1be477250a0d1467bf2076238c525..0000000000000000000000000000000000000000
--- a/conversations/conv_047341.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_047356.json b/conversations/conv_047356.json
deleted file mode 100644
index dcc6e4732092f5de800bdac6e56fd72c1714bb5b..0000000000000000000000000000000000000000
--- a/conversations/conv_047356.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "duration": 0.5717853201369912,
-      "start_time": 25.609436384651655,
-      "speaker_id": "3947"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3947/cough/0083.wav",
-      "duration": 1.0031542394650839,
-      "start_time": 25.5324374701161,
-      "speaker_id": "3947"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047357.json b/conversations/conv_047357.json
deleted file mode 100644
index 8441392d64f965ee8668f6cfe6fcd55e49441919..0000000000000000000000000000000000000000
--- a/conversations/conv_047357.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.737971821720122,
-      "duration": 5.737971821720122,
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-      "overlap": false,
-      "utterance_id": "7737-114039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-114039.flac |",
-      "real_speaker_id": "7737",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.800365746105489,
-      "end_time": 10.5731875455675,
-      "duration": 4.77282179946201,
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-      "duration_frames": 76365,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.780843092202351,
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-      "utterance_id": "1373-132103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.868081504272823,
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-      "utterance_id": "7737-114039",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-114039.flac |",
-      "real_speaker_id": "7737",
-      "position_frames": 91807
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.555073624987756,
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-      "utterance_id": "1373-132103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 94775
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.251236433259123,
-      "end_time": 32.0,
-      "duration": 1.7487635667408767,
-      "start_frame": 484019,
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-      "overlap": false,
-      "utterance_id": "7737-112595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-112595.flac |",
-      "real_speaker_id": "7737",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7737/laugh/0112.wav",
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-      "start_time": 30.84,
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-}
\ No newline at end of file
diff --git a/conversations/conv_047361.json b/conversations/conv_047361.json
deleted file mode 100644
index 7786f88ae7f5be6b6b80f5dcb37528f36747cdbb..0000000000000000000000000000000000000000
--- a/conversations/conv_047361.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "3553-697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-697.flac |",
-      "real_speaker_id": "3553",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.262075666620054,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110705.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-149245.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.953720747872826,
-      "end_time": 24.97058638698025,
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-      "overlap": false,
-      "utterance_id": "7868-110705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110705.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 72624
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.558137777807264,
-      "end_time": 32.0,
-      "duration": 6.441862222192736,
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-      "utterance_id": "1607-150715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-150715.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1607/laugh/0059.wav",
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-    {
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-      "start_time": 25.049118741290116,
-      "speaker_id": "7868"
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-}
\ No newline at end of file
diff --git a/conversations/conv_047377.json b/conversations/conv_047377.json
deleted file mode 100644
index 9bda22fd607d409f13c9a6310de5e713f28755f1..0000000000000000000000000000000000000000
--- a/conversations/conv_047377.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8447-286248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286248.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
-      "real_speaker_id": "614",
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-      "overlap": false,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.694070821722296,
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-      "overlap": false,
-      "utterance_id": "8447-285242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-285242.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.68964582891076,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8447-286248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286248.flac |",
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-      "position_frames": 95662
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_047382.json b/conversations/conv_047382.json
deleted file mode 100644
index 9ea81ddac34e90ef4c4f27ec510c10cae576a99a..0000000000000000000000000000000000000000
--- a/conversations/conv_047382.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "7708-296091",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-296091.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "1463-134465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "8123-275216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275216.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.931443778714687,
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-      "duration_frames": 82680,
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-      "utterance_id": "1463-134463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134463.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.71831384440589,
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-      "overlap": false,
-      "utterance_id": "8123-275216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8123-275216.flac |",
-      "real_speaker_id": "8123",
-      "position_frames": 107277
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.5976165659671295,
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-      "utterance_id": "7708-290368",
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-      "real_speaker_id": "7708",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_047385.json b/conversations/conv_047385.json
deleted file mode 100644
index 307c8096adfaadc9fe0e28df10d342488a39e51f..0000000000000000000000000000000000000000
--- a/conversations/conv_047385.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "duration_frames": 79792,
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\ No newline at end of file
diff --git a/conversations/conv_047393.json b/conversations/conv_047393.json
deleted file mode 100644
index 44e329d741afee2859d60c586d5614f35055b8d9..0000000000000000000000000000000000000000
--- a/conversations/conv_047393.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/85-121551.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047394.json b/conversations/conv_047394.json
deleted file mode 100644
index 484dab1201ddd9255b9b2ad986d760c41067c4a6..0000000000000000000000000000000000000000
--- a/conversations/conv_047394.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_047398.json b/conversations/conv_047398.json
deleted file mode 100644
index 2021bd90d963f679ebabafafc2317385307ed6b4..0000000000000000000000000000000000000000
--- a/conversations/conv_047398.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_047402.json b/conversations/conv_047402.json
deleted file mode 100644
index ea12fcff25fb0b46e2a5196cead45552fb6504c2..0000000000000000000000000000000000000000
--- a/conversations/conv_047402.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-46588.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.383791418674047,
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-      "utterance_id": "688-1070",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-1070.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 57432
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.560085490166777,
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-      "utterance_id": "3433-718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3433-718.flac |",
-      "real_speaker_id": "3433",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 0.72,
-      "start_time": 24.076857308637713,
-      "speaker_id": "688"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_047405.json b/conversations/conv_047405.json
deleted file mode 100644
index c2532047c9fb48bcee7c301e7e9f6c8f1a70cb19..0000000000000000000000000000000000000000
--- a/conversations/conv_047405.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.635315514726873,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0626659640522638,
-      "duration": 3.0626659640522638,
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-      "duration_frames": 49002,
-      "overlap": false,
-      "utterance_id": "1614-141486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-141486.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.09019725644923,
-      "end_time": 8.808664187694212,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 9.248126411384353,
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-      "overlap": false,
-      "utterance_id": "1614-167305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-167305.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.046099543704052,
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-      "overlap": false,
-      "utterance_id": "3328-168638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-168638.flac |",
-      "real_speaker_id": "3328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.320161702147146,
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-      "utterance_id": "1614-167305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-167305.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 102055
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.06430968609306,
-      "end_time": 31.635315514726873,
-      "duration": 3.5710058286338118,
-      "start_frame": 449028,
-      "duration_frames": 57136,
-      "overlap": true,
-      "utterance_id": "1614-141486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-141486.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 49002
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-      "event_class": "cough",
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-      "speaker_id": "3328"
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-      "duration": 1.2,
-      "start_time": 26.69037065696531,
-      "speaker_id": "1614"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047413.json b/conversations/conv_047413.json
deleted file mode 100644
index 848580cb997991f6c4bf387ed547350532d0fdf1..0000000000000000000000000000000000000000
--- a/conversations/conv_047413.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6082-56174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.799023373376816,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 60354
-    },
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 95614
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 4.356639710791374,
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-      "duration_frames": 69706,
-      "overlap": false,
-      "utterance_id": "7145-87280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7145-87280.flac |",
-      "real_speaker_id": "7145",
-      "position_frames": 90900
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 12.816503883553297,
-      "speaker_id": "6082"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7145/laugh/0054.wav",
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-      "start_time": 14.265832912702486,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7145/cough/0001.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7145/laugh/0009.wav",
-      "duration": 0.5192234831946001,
-      "start_time": 31.4807765168054,
-      "speaker_id": "7145"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047414.json b/conversations/conv_047414.json
deleted file mode 100644
index 25a7fb4eb63b4bdbcb3d0696c6b65048f91f72f6..0000000000000000000000000000000000000000
--- a/conversations/conv_047414.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1028-133395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133395.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 90865
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133395.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 101502
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6620",
-      "position_frames": 193669
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.689791278144167,
-      "end_time": 32.0,
-      "duration": 0.31020872185583315,
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-      "duration_frames": 4963,
-      "overlap": false,
-      "utterance_id": "1028-133395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133395.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 209455
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_0.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 0.8,
-      "start_time": 16.723026952683234,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1028/laugh/0109.wav",
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-      "start_time": 19.12019917971933,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1028/cough/0104.wav",
-      "duration": 0.92,
-      "start_time": 30.597546306633376,
-      "speaker_id": "1028"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047418.json b/conversations/conv_047418.json
deleted file mode 100644
index 5758ec0ba39dfd991f5ad07a77f88113950d17d4..0000000000000000000000000000000000000000
--- a/conversations/conv_047418.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_047422.json b/conversations/conv_047422.json
deleted file mode 100644
index 5740f67639724f04dc79734bc33a031184ae5b9f..0000000000000000000000000000000000000000
--- a/conversations/conv_047422.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047434.json b/conversations/conv_047434.json
deleted file mode 100644
index 92d870c86ee3f26214cf1a67fbd34bf0de1f9163..0000000000000000000000000000000000000000
--- a/conversations/conv_047434.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_047438.json b/conversations/conv_047438.json
deleted file mode 100644
index abe7e3093e7183fa7e6e72721ae3b6b34c1bd78f..0000000000000000000000000000000000000000
--- a/conversations/conv_047438.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_047443.json b/conversations/conv_047443.json
deleted file mode 100644
index a24e1f00d2733cd5692029ab6191053d657c6495..0000000000000000000000000000000000000000
--- a/conversations/conv_047443.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.780968949692084,
-      "duration": 5.780968949692084,
-      "start_frame": 0,
-      "duration_frames": 92495,
-      "overlap": false,
-      "utterance_id": "8425-246962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-246962.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.56743366786533,
-      "end_time": 11.314475181139212,
-      "duration": 4.747041513273883,
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-      "duration_frames": 75952,
-      "overlap": false,
-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.12385702957825,
-      "end_time": 16.768738821782982,
-      "duration": 4.644881792204732,
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-      "duration_frames": 74318,
-      "overlap": false,
-      "utterance_id": "8425-292520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-292520.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 75952
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 125621
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.90385992513843,
-      "end_time": 30.854989056378074,
-      "duration": 5.951129131239643,
-      "start_frame": 398461,
-      "duration_frames": 95218,
-      "overlap": false,
-      "utterance_id": "4706-28494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28494.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.432179828410312,
-      "end_time": 32.0,
-      "duration": 0.5678201715896876,
-      "start_frame": 502914,
-      "duration_frames": 9085,
-      "overlap": false,
-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 186391
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 4.930369031844518
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.2496535843081036,
-      "start_time": 24.75374914876576
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
-      "duration": 3.48094860704089,
-      "start_time": 4.671434900413424
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8425/laugh/0070.wav",
-      "duration": 1.2,
-      "start_time": 16.88546165232479,
-      "speaker_id": "8425"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8425/cough/0007.wav",
-      "duration": 0.5029708475677723,
-      "start_time": 11.503507438040323,
-      "speaker_id": "8425"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047444.json b/conversations/conv_047444.json
deleted file mode 100644
index ea71696d4c62c800bde2535cab1f46e5944e62b6..0000000000000000000000000000000000000000
--- a/conversations/conv_047444.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.3478594465644393,
-      "duration": 3.3478594465644393,
-      "start_frame": 0,
-      "duration_frames": 53565,
-      "overlap": false,
-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.527927982304976,
-      "end_time": 6.89801121022007,
-      "duration": 3.370083227915094,
-      "start_frame": 56446,
-      "duration_frames": 53921,
-      "overlap": false,
-      "utterance_id": "1665-136991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.057500201843229,
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-      "duration_frames": 105220,
-      "overlap": false,
-      "utterance_id": "3373-174983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174983.flac |",
-      "real_speaker_id": "3373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.391401382554687,
-      "end_time": 18.831589031628887,
-      "duration": 4.4401876490742005,
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-      "overlap": false,
-      "utterance_id": "1665-136991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 53921
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.86617862089835,
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-      "duration": 4.937243104476354,
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-      "overlap": false,
-      "utterance_id": "5239-31629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.47283066400989,
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-      "duration_frames": 60449,
-      "overlap": false,
-      "utterance_id": "3373-174983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3373-174983.flac |",
-      "real_speaker_id": "3373",
-      "position_frames": 105220
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.276769490489578,
-      "end_time": 32.0,
-      "duration": 1.7232305095104223,
-      "start_frame": 484428,
-      "duration_frames": 27571,
-      "overlap": false,
-      "utterance_id": "1665-132826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-132826.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.9101628181243338,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1665/cough/0065.wav",
-      "duration": 1.04,
-      "start_time": 18.95951455882325,
-      "speaker_id": "1665"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5239/laugh/0031.wav",
-      "duration": 0.7489516597041037,
-      "start_time": 22.473018161526475,
-      "speaker_id": "5239"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5239/cough/0051.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3373/laugh/0083.wav",
-      "duration": 0.6360794907586829,
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-      "speaker_id": "3373"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047452.json b/conversations/conv_047452.json
deleted file mode 100644
index 13591f7137c68c5caafc97a23a38cf2b47ae7885..0000000000000000000000000000000000000000
--- a/conversations/conv_047452.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "duration": 3.158975947711304,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4455-18532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-18532.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.926760887067134,
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-      "overlap": false,
-      "utterance_id": "8544-281189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8544-281189.flac |",
-      "real_speaker_id": "8544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.112355471917924,
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-      "overlap": false,
-      "utterance_id": "3567-7277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3567-7277.flac |",
-      "real_speaker_id": "3567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "4455-14896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-14896.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 20.346184326149782,
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-      "real_speaker_id": "4455",
-      "position_frames": 84553
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 65773,
-      "overlap": false,
-      "utterance_id": "4455-90866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-90866.flac |",
-      "real_speaker_id": "4455",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.462875498052455,
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-      "duration": 0.5371245019475452,
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-      "utterance_id": "3567-7277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3567-7277.flac |",
-      "real_speaker_id": "3567",
-      "position_frames": 48251
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64007.wav",
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-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3567/laugh/0072.wav",
-      "duration": 1.24,
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-      "speaker_id": "3567"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047455.json b/conversations/conv_047455.json
deleted file mode 100644
index 574c87e9b69c5d76098562ad4a0295f9dace3a9b..0000000000000000000000000000000000000000
--- a/conversations/conv_047455.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.65894393405378,
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-      "overlap": false,
-      "utterance_id": "1422-149735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1422-149735.flac |",
-      "real_speaker_id": "1422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1422-146111.flac |",
-      "real_speaker_id": "1422",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7392-94500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-94500.flac |",
-      "real_speaker_id": "7392",
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-      "speaker_id": "1422"
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-}
\ No newline at end of file
diff --git a/conversations/conv_047459.json b/conversations/conv_047459.json
deleted file mode 100644
index cffe2944b3a65713b21ca2dd0c3cdb7d1e9e0943..0000000000000000000000000000000000000000
--- a/conversations/conv_047459.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.529429445251274,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3314-135987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-135987.flac |",
-      "real_speaker_id": "3314",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-96617.flac |",
-      "real_speaker_id": "3681",
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-      "utterance_id": "40-222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.23920422675484,
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-      "utterance_id": "40-222",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/40-222.flac |",
-      "real_speaker_id": "40",
-      "position_frames": 84314
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3681-96617",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-96617.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 84708
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.676911028098935,
-      "end_time": 31.529429445251274,
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-      "utterance_id": "3314-138053",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3314-138053.flac |",
-      "real_speaker_id": "3314",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "speaker_id": "3314"
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-}
\ No newline at end of file
diff --git a/conversations/conv_047463.json b/conversations/conv_047463.json
deleted file mode 100644
index be25dd6a01d98f56f0d5a1253299e56522151b1d..0000000000000000000000000000000000000000
--- a/conversations/conv_047463.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.459199987096724,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/288-130994.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133727.flac |",
-      "real_speaker_id": "1107",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "288",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133727.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 85951
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047475.json b/conversations/conv_047475.json
deleted file mode 100644
index 26cd6eff25906b4b00bbede659506be52794745e..0000000000000000000000000000000000000000
--- a/conversations/conv_047475.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1363-139304",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6484",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_047478.json b/conversations/conv_047478.json
deleted file mode 100644
index 72603552a087d13a8b02853dea6a4247d6d229cb..0000000000000000000000000000000000000000
--- a/conversations/conv_047478.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "6747-76145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76145.flac |",
-      "real_speaker_id": "6747",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_047479.json b/conversations/conv_047479.json
deleted file mode 100644
index faaf2e74d8aaaffbaffe184d862f19f9e9347d55..0000000000000000000000000000000000000000
--- a/conversations/conv_047479.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
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-      "position_frames": 133346
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/200-124140.flac |",
-      "real_speaker_id": "200",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3381-9921.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047480.json b/conversations/conv_047480.json
deleted file mode 100644
index 8109c1579367005971be9d8b1fc59951bb49b40e..0000000000000000000000000000000000000000
--- a/conversations/conv_047480.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_047496.json b/conversations/conv_047496.json
deleted file mode 100644
index 708a6c8f0405b931dbdff6cf4d5fc6214e6dd211..0000000000000000000000000000000000000000
--- a/conversations/conv_047496.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_047501.json b/conversations/conv_047501.json
deleted file mode 100644
index e30e404ec9e2991c141f2a445458fdcc951fb333..0000000000000000000000000000000000000000
--- a/conversations/conv_047501.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2488-155526.flac |",
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-      "utterance_id": "6538-81858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81858.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 81080
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-  "background_events": [
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-      "event_class": "Running_water",
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-      "start_time": 31.04,
-      "speaker_id": "6538"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047506.json b/conversations/conv_047506.json
deleted file mode 100644
index 42d6694044f500cac79f95d31db93946c4b3ffd5..0000000000000000000000000000000000000000
--- a/conversations/conv_047506.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5789-70653.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047510.json b/conversations/conv_047510.json
deleted file mode 100644
index b15213827c34d863dec6295b83d8c85d5f3171e1..0000000000000000000000000000000000000000
--- a/conversations/conv_047510.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135654.flac |",
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-      "real_speaker_id": "2299",
-      "position_frames": 0
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_047517.json b/conversations/conv_047517.json
deleted file mode 100644
index 83c4bdc316d29526b8375acd369848b2626f3d75..0000000000000000000000000000000000000000
--- a/conversations/conv_047517.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.49460458245431,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "6967-50152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6967-50152.flac |",
-      "real_speaker_id": "6967",
-      "position_frames": 0
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-      "utterance_id": "4583-16043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4583-16043.flac |",
-      "real_speaker_id": "4583",
-      "position_frames": 0
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "4583-17998",
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047526.json b/conversations/conv_047526.json
deleted file mode 100644
index 4c28ef0f57f6997905802ab452c91d50ba6f9cba..0000000000000000000000000000000000000000
--- a/conversations/conv_047526.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-    {
-      "segment_id": "seg0001",
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7480/laugh/0058.wav",
-      "duration": 0.6064752491962773,
-      "start_time": 21.29970414768838,
-      "speaker_id": "7480"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047530.json b/conversations/conv_047530.json
deleted file mode 100644
index c9f3f9ff115c7d540895886d0914f4ab81e3a580..0000000000000000000000000000000000000000
--- a/conversations/conv_047530.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.940228041699815,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-66412.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.1236610432852006,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-133546.flac |",
-      "real_speaker_id": "2198",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5252-4860",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4860.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 16.548997720108044,
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-      "utterance_id": "2198-46877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2198-46877.flac |",
-      "real_speaker_id": "2198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.54625056930353,
-      "end_time": 26.272184698798675,
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-      "utterance_id": "6735-284431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-284431.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.848337315113632,
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-      "duration": 5.091890726586182,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5252-4860.flac |",
-      "real_speaker_id": "5252",
-      "position_frames": 69534
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "speaker_id": "2198"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047540.json b/conversations/conv_047540.json
deleted file mode 100644
index d2f9e69cc10bc9c24f3f02076490e9dd2d6bca92..0000000000000000000000000000000000000000
--- a/conversations/conv_047540.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31089.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31089.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 150840
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-30593.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.381250165022955,
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-}
\ No newline at end of file
diff --git a/conversations/conv_047547.json b/conversations/conv_047547.json
deleted file mode 100644
index 41e16bf6ac7343654ad4767f69c864ef2f0b11d6..0000000000000000000000000000000000000000
--- a/conversations/conv_047547.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "3665-8587",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3665-8587.flac |",
-      "real_speaker_id": "3665",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3665",
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-    },
-    {
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_047551.json b/conversations/conv_047551.json
deleted file mode 100644
index c24e785da27a1df075d49748835532cc9f7c93ce..0000000000000000000000000000000000000000
--- a/conversations/conv_047551.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.87096594021848,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047556.json b/conversations/conv_047556.json
deleted file mode 100644
index f2f8806c55e2392c9c30424483e1a6ce1f6abde0..0000000000000000000000000000000000000000
--- a/conversations/conv_047556.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-105002.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.771898969339343,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123606.flac |",
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-      "position_frames": 52391
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 109702
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-158816.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047567.json b/conversations/conv_047567.json
deleted file mode 100644
index 91d338a308270848acd025002cc935e93047ad79..0000000000000000000000000000000000000000
--- a/conversations/conv_047567.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123289.flac |",
-      "real_speaker_id": "887",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153286.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123290.flac |",
-      "real_speaker_id": "887",
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-      "utterance_id": "3479-153280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3479-153280.flac |",
-      "real_speaker_id": "3479",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 24.829536859868114,
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-      "overlap": false,
-      "utterance_id": "887-123291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123291.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "887"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047571.json b/conversations/conv_047571.json
deleted file mode 100644
index bc358adac005a0ec834dd32edb19cb3bec7351a9..0000000000000000000000000000000000000000
--- a/conversations/conv_047571.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "2618-138042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 0
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-    {
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-140651.flac |",
-      "real_speaker_id": "1552",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.123523460315777,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 71378
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-140651.flac |",
-      "real_speaker_id": "1552",
-      "position_frames": 66867
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-      "real_speaker_id": "2618",
-      "position_frames": 62828
-    },
-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-140656.flac |",
-      "real_speaker_id": "1552",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 18.72673194917022,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2618/laugh/0073.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 31.12,
-      "speaker_id": "1552"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047584.json b/conversations/conv_047584.json
deleted file mode 100644
index 82f4a3daa71327635aa55a8e380eaff4be837955..0000000000000000000000000000000000000000
--- a/conversations/conv_047584.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.8181524301871,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125871.flac |",
-      "real_speaker_id": "336",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.635902747905618,
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-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 139957
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.724039251193233,
-      "end_time": 30.8181524301871,
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-      "overlap": false,
-      "utterance_id": "336-125876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125876.flac |",
-      "real_speaker_id": "336",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
-      "start_time": 14.702930900094886
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4513/cough/0001.wav",
-      "duration": 1.04,
-      "start_time": 0,
-      "speaker_id": "4513"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4513/laugh/0041.wav",
-      "duration": 1.1008972855851629,
-      "start_time": 20.31460326023218,
-      "speaker_id": "4513"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047585.json b/conversations/conv_047585.json
deleted file mode 100644
index c686e949654e3b8027a57dad153a97d8b180c2f5..0000000000000000000000000000000000000000
--- a/conversations/conv_047585.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8143-278223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.4612406600194,
-      "end_time": 8.052575858984682,
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-      "utterance_id": "8322-276748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.75416166705562,
-      "end_time": 14.861982331073506,
-      "duration": 6.107820664017885,
-      "start_frame": 140066,
-      "duration_frames": 97725,
-      "overlap": false,
-      "utterance_id": "5333-5083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5333-5083.flac |",
-      "real_speaker_id": "5333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.744590437276274,
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-      "utterance_id": "8322-276748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 57461
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.749664137422755,
-      "end_time": 25.963656483400793,
-      "duration": 5.213992345978039,
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-      "overlap": false,
-      "utterance_id": "8143-278223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 64965
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.563779975963904,
-      "end_time": 29.961642339670792,
-      "duration": 3.397862363706887,
-      "start_frame": 425020,
-      "duration_frames": 54365,
-      "overlap": false,
-      "utterance_id": "8143-278223",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278223.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 148388
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.163218030277875,
-      "end_time": 32.0,
-      "duration": 1.836781969722125,
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-      "utterance_id": "8143-278206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8143-278206.flac |",
-      "real_speaker_id": "8143",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
-      "duration": 3.5540413062939704,
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.42,
-      "start_time": 3.022617069020579,
-      "speaker_id": "8322"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "5333"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8143/laugh/0066.wav",
-      "duration": 1.08,
-      "start_time": 25.321100163482683,
-      "speaker_id": "8143"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8143/laugh/0091.wav",
-      "duration": 1.0202622349327055,
-      "start_time": 29.008504839730715,
-      "speaker_id": "8143"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047588.json b/conversations/conv_047588.json
deleted file mode 100644
index 76d57fe09873850cc9d117e2175393f3d30f911b..0000000000000000000000000000000000000000
--- a/conversations/conv_047588.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.060868479874207,
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-      "utterance_id": "1710-133295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133295.flac |",
-      "real_speaker_id": "1710",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164335.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.35286528315422,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 87102
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.38219740030364,
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-      "overlap": false,
-      "utterance_id": "1710-133294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133294.flac |",
-      "real_speaker_id": "1710",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.810526491264064,
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-      "duration_frames": 52070,
-      "overlap": false,
-      "utterance_id": "2050-164332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164332.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.889595831363064,
-      "end_time": 32.0,
-      "duration": 1.1104041686369364,
-      "start_frame": 494233,
-      "duration_frames": 17766,
-      "overlap": false,
-      "utterance_id": "2050-157659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2050/laugh/0034.wav",
-      "duration": 1.18,
-      "start_time": 9.60620329604432,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4019/laugh/0102.wav",
-      "duration": 1.24,
-      "start_time": 21.654010004195637,
-      "speaker_id": "4019"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047592.json b/conversations/conv_047592.json
deleted file mode 100644
index ef1fadfec3f4d07c4fe5e111187b223a631e0bb8..0000000000000000000000000000000000000000
--- a/conversations/conv_047592.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "2136-5143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5143.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.176957892443738,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89169.flac |",
-      "real_speaker_id": "7423",
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-      "overlap": false,
-      "utterance_id": "2136-5147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5147.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.05694395021921,
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-      "overlap": false,
-      "utterance_id": "7423-89164",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.7015508617964,
-      "end_time": 27.476146626570422,
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-      "overlap": false,
-      "utterance_id": "2136-5143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5143.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 103507
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.251330249474343,
-      "end_time": 32.0,
-      "duration": 3.748669750525657,
-      "start_frame": 452021,
-      "duration_frames": 59978,
-      "overlap": false,
-      "utterance_id": "6454-107462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-107462.flac |",
-      "real_speaker_id": "6454",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 11.451860464236404,
-      "speaker_id": "7423"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2136/cough/0113.wav",
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-      "start_time": 22.202169580932996,
-      "speaker_id": "2136"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047595.json b/conversations/conv_047595.json
deleted file mode 100644
index 64a853eb7cc096a7c33087608eb5a7a6cb1610a9..0000000000000000000000000000000000000000
--- a/conversations/conv_047595.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5647357765405374,
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-      "overlap": false,
-      "utterance_id": "4959-28865",
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\ No newline at end of file
diff --git a/conversations/conv_047603.json b/conversations/conv_047603.json
deleted file mode 100644
index a22dd2cddc552568fa88c46141168be9416b0604..0000000000000000000000000000000000000000
--- a/conversations/conv_047603.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_047614.json b/conversations/conv_047614.json
deleted file mode 100644
index 6728e1c890519e2a3d2abdc7edc06c2c20ce2454..0000000000000000000000000000000000000000
--- a/conversations/conv_047614.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_047615.json b/conversations/conv_047615.json
deleted file mode 100644
index 7e7bbd04075eab84e62c7bc28042fabea4dccd31..0000000000000000000000000000000000000000
--- a/conversations/conv_047615.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "start_time": 30.96,
-      "speaker_id": "4846"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047619.json b/conversations/conv_047619.json
deleted file mode 100644
index 197010918492a3976ada4c375972827c37099683..0000000000000000000000000000000000000000
--- a/conversations/conv_047619.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.173734007220965,
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-      "overlap": false,
-      "utterance_id": "4148-134149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-134149.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.093037797091917,
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-      "utterance_id": "250-142286",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/250-142286.flac |",
-      "real_speaker_id": "250",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.401183417076375,
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-      "overlap": true,
-      "utterance_id": "4148-183988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-183988.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.125625708023357,
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-      "utterance_id": "4148-183988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-183988.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 70033
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.80861513800697,
-      "end_time": 27.70534713682972,
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-      "overlap": true,
-      "utterance_id": "1097-136912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136912.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.634765261808674,
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-      "duration": 3.365234738191326,
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-      "overlap": false,
-      "utterance_id": "4148-134149",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4148-134149.flac |",
-      "real_speaker_id": "4148",
-      "position_frames": 98779
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1097/laugh/0039.wav",
-      "duration": 1.2,
-      "start_time": 26.357286411346387,
-      "speaker_id": "1097"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1097/cough/0072.wav",
-      "duration": 0.5422685406867712,
-      "start_time": 27.826279607423913,
-      "speaker_id": "1097"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047623.json b/conversations/conv_047623.json
deleted file mode 100644
index b6ec937f64bcf2ac27da2e10f92d3957eb81ff16..0000000000000000000000000000000000000000
--- a/conversations/conv_047623.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.646752591770995,
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-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.705304394568888,
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-      "overlap": false,
-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 88640
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.885790677651231,
-      "end_time": 20.309694242292803,
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-      "overlap": false,
-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
-      "real_speaker_id": "6003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.680569285961994,
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-      "duration": 5.489680901208749,
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-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 75757
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1444-133287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1444-133287.flac |",
-      "real_speaker_id": "1444",
-      "position_frames": 163591
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1444/laugh/0000.wav",
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-      "start_time": 5.021971898675512,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1444/cough/0051.wav",
-      "duration": 1.2660380933072708,
-      "start_time": 4.777802433999469,
-      "speaker_id": "1444"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047628.json b/conversations/conv_047628.json
deleted file mode 100644
index 2a19f48ac3bec53053da20fb0a721b5e3baca52f..0000000000000000000000000000000000000000
--- a/conversations/conv_047628.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1624-142933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-163402.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 13.008427723250414,
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-      "overlap": false,
-      "utterance_id": "1624-168623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-168623.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.53729393332236,
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-      "overlap": false,
-      "utterance_id": "2532-157475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-157475.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.965892156159427,
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-      "utterance_id": "1624-168623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-168623.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 69398
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8592-285135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8592-285135.flac |",
-      "real_speaker_id": "8592",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_047635.json b/conversations/conv_047635.json
deleted file mode 100644
index c6769ca68fb409bcc489513feacb9029d2685fcd..0000000000000000000000000000000000000000
--- a/conversations/conv_047635.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4010-10801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10801.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.603353160315932,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10798.flac |",
-      "real_speaker_id": "4010",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.239475374261655,
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-      "overlap": true,
-      "utterance_id": "5337-37090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
-      "real_speaker_id": "5337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.88012372530361,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10801.flac |",
-      "real_speaker_id": "4010",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6937-262269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-262269.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5337-37090.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4010/laugh/0006.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047639.json b/conversations/conv_047639.json
deleted file mode 100644
index 5fa32ee0b5b728e0aa23244fe33b6764c406e2ba..0000000000000000000000000000000000000000
--- a/conversations/conv_047639.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_047642.json b/conversations/conv_047642.json
deleted file mode 100644
index e3d2c8c6c86ff4160d794143fc8ed813353b3f35..0000000000000000000000000000000000000000
--- a/conversations/conv_047642.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.721365457323493,
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-  "overlap_rate": 0.0,
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-      "real_speaker_id": "17",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_047643.json b/conversations/conv_047643.json
deleted file mode 100644
index e653bb45f79a6edae9afda2864fc8748d0b4586e..0000000000000000000000000000000000000000
--- a/conversations/conv_047643.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_047654.json b/conversations/conv_047654.json
deleted file mode 100644
index 835a77939d894a1f56e94f7acfdd9ba3fcb578c8..0000000000000000000000000000000000000000
--- a/conversations/conv_047654.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1757/laugh/0128.wav",
-      "duration": 1.2925116851854173,
-      "start_time": 26.834359690380253,
-      "speaker_id": "1757"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1757/cough/0066.wav",
-      "duration": 0.7387969281231996,
-      "start_time": 27.483610343414593,
-      "speaker_id": "1757"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047658.json b/conversations/conv_047658.json
deleted file mode 100644
index 5675aa4eca195b0c84f8ddb2fb7c3b32c328ef55..0000000000000000000000000000000000000000
--- a/conversations/conv_047658.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.341047835635977,
-      "duration": 4.341047835635977,
-      "start_frame": 0,
-      "duration_frames": 69456,
-      "overlap": false,
-      "utterance_id": "5136-24633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-24633.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.107397241747032,
-      "end_time": 10.016689822399503,
-      "duration": 4.90929258065247,
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-      "duration_frames": 78548,
-      "overlap": false,
-      "utterance_id": "1355-39947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.53543739060683,
-      "end_time": 16.39562762176629,
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-      "overlap": false,
-      "utterance_id": "5136-53512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5136-53512.flac |",
-      "real_speaker_id": "5136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.21396765241603,
-      "end_time": 22.830827785798583,
-      "duration": 5.616860133382554,
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-      "overlap": false,
-      "utterance_id": "2026-81609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81609.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.506224140150277,
-      "end_time": 27.277593977559164,
-      "duration": 3.771369837408886,
-      "start_frame": 376099,
-      "duration_frames": 60341,
-      "overlap": true,
-      "utterance_id": "2026-81609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-81609.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 89869
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.81230282966771,
-      "end_time": 32.0,
-      "duration": 4.187697170332289,
-      "start_frame": 444996,
-      "duration_frames": 67003,
-      "overlap": false,
-      "utterance_id": "1355-39947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 78548
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
-      "duration": 15.55204081632653,
-      "start_time": 16.176126456372376
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
-      "duration": 0.29401360544217686,
-      "start_time": 17.712348183407894
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1355/cough/0096.wav",
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-      "start_time": 9.240520801153375,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5136/laugh/0051.wav",
-      "duration": 1.12,
-      "start_time": 11.366251667700634,
-      "speaker_id": "5136"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2026/laugh/0082.wav",
-      "duration": 0.7914146468090071,
-      "start_time": 27.29750604991997,
-      "speaker_id": "2026"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1355/laugh/0068.wav",
-      "duration": 1.2,
-      "start_time": 28.606000887178226,
-      "speaker_id": "1355"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047662.json b/conversations/conv_047662.json
deleted file mode 100644
index cbd1077830f22415323a784cf3e8f494302f0336..0000000000000000000000000000000000000000
--- a/conversations/conv_047662.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.565545200863998,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.571977402219705,
-      "duration": 6.571977402219705,
-      "start_frame": 0,
-      "duration_frames": 105151,
-      "overlap": false,
-      "utterance_id": "7276-90847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-90847.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.809519267274474,
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-      "overlap": false,
-      "utterance_id": "2246-131710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2246-131710.flac |",
-      "real_speaker_id": "2246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.686983078939107,
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-      "utterance_id": "7276-284424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.906347122515875,
-      "end_time": 24.537053954059072,
-      "duration": 4.630706831543196,
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-      "overlap": false,
-      "utterance_id": "1222-141174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1222-141174.flac |",
-      "real_speaker_id": "1222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.152167253759067,
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-      "start_frame": 402434,
-      "duration_frames": 84052,
-      "overlap": false,
-      "utterance_id": "7276-92427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-92427.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.06442889262516,
-      "end_time": 31.565545200863998,
-      "duration": 0.5011163082388386,
-      "start_frame": 497030,
-      "duration_frames": 8017,
-      "overlap": true,
-      "utterance_id": "2246-131710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2246-131710.flac |",
-      "real_speaker_id": "2246",
-      "position_frames": 107081
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
-      "duration": 0.19419501133786848,
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2246/cough/0044.wav",
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-      "start_time": 6.058372517420406,
-      "speaker_id": "2246"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7276/laugh/0060.wav",
-      "duration": 1.28,
-      "start_time": 12.27103016153138,
-      "speaker_id": "7276"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1222/laugh/0084.wav",
-      "duration": 1.52,
-      "start_time": 24.69133836657291,
-      "speaker_id": "1222"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047669.json b/conversations/conv_047669.json
deleted file mode 100644
index dbb63632dfb9f4d53e2955db314a46f9ddcbba0e..0000000000000000000000000000000000000000
--- a/conversations/conv_047669.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "666-11243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11243.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.2340542855928,
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-      "utterance_id": "7962-110061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.546046155346202,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11243.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 93707
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.20796659036806,
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-      "duration": 4.337210155008166,
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-      "overlap": false,
-      "utterance_id": "3871-692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.90944133766946,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7962-110061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 77125
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.70091709499909,
-      "end_time": 32.0,
-      "duration": 2.2990829050009083,
-      "start_frame": 475214,
-      "duration_frames": 36785,
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-      "utterance_id": "666-11244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 68857
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3871/laugh/0093.wav",
-      "duration": 1.0,
-      "start_time": 15.038307449884426,
-      "speaker_id": "3871"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/666/cough/0047.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/666/laugh/0106.wav",
-      "duration": 1.7328992101635479,
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-      "speaker_id": "666"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047674.json b/conversations/conv_047674.json
deleted file mode 100644
index be8d1127f35a5323b28aa56f7d415eb9032a921d..0000000000000000000000000000000000000000
--- a/conversations/conv_047674.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1342-130497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-130497.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "3082",
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
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-      "position_frames": 91805
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-    {
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_047678.json b/conversations/conv_047678.json
deleted file mode 100644
index a268d9e54a5277113a98e25dd6fd6956e777ccae..0000000000000000000000000000000000000000
--- a/conversations/conv_047678.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7012-81370.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "7012",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-98689.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 27.47362365306357,
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-      "utterance_id": "4474-14185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14185.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 128137
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_047681.json b/conversations/conv_047681.json
deleted file mode 100644
index 2a3511b775fbe842922dd040178b799d326d8b32..0000000000000000000000000000000000000000
--- a/conversations/conv_047681.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "position_frames": 0
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-      "real_speaker_id": "4021",
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-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_047686.json b/conversations/conv_047686.json
deleted file mode 100644
index 3cf69223cd5dcb2db400cb7aa002019cf6308eaf..0000000000000000000000000000000000000000
--- a/conversations/conv_047686.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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\ No newline at end of file
diff --git a/conversations/conv_047690.json b/conversations/conv_047690.json
deleted file mode 100644
index 94958c86f984c3ee82e029c965ea2ef93e5e320f..0000000000000000000000000000000000000000
--- a/conversations/conv_047690.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2427-154736.flac |",
-      "real_speaker_id": "2427",
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\ No newline at end of file
diff --git a/conversations/conv_047697.json b/conversations/conv_047697.json
deleted file mode 100644
index bdca6fd4387e10e9936a9f0d262ab706b5bf5230..0000000000000000000000000000000000000000
--- a/conversations/conv_047697.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "4848-28247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-28247.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-101836.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_047706.json b/conversations/conv_047706.json
deleted file mode 100644
index fe887f94cf9fc21132a7d4df46ba89d992ecf26d..0000000000000000000000000000000000000000
--- a/conversations/conv_047706.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1811",
-      "position_frames": 0
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-      "utterance_id": "3171-7574",
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-      "real_speaker_id": "3171",
-      "position_frames": 0
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-  ],
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3171/laugh/0088.wav",
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-      "speaker_id": "3171"
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-}
\ No newline at end of file
diff --git a/conversations/conv_047707.json b/conversations/conv_047707.json
deleted file mode 100644
index 652315880e246912e800a5f21dcf85b8f86175ac..0000000000000000000000000000000000000000
--- a/conversations/conv_047707.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.064171158608673,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58868.flac |",
-      "real_speaker_id": "6139",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1846",
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047711.json b/conversations/conv_047711.json
deleted file mode 100644
index ef18febbccab7d57f6c60ca22527007205adace7..0000000000000000000000000000000000000000
--- a/conversations/conv_047711.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10702.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_047727.json b/conversations/conv_047727.json
deleted file mode 100644
index 097b0cd0a59bd90d162ebbe9064b528983b242ea..0000000000000000000000000000000000000000
--- a/conversations/conv_047727.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_047731.json b/conversations/conv_047731.json
deleted file mode 100644
index 9158374e19b330bfa8fe2bb2eef3fee09903324e..0000000000000000000000000000000000000000
--- a/conversations/conv_047731.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_047746.json b/conversations/conv_047746.json
deleted file mode 100644
index f01767283a5123910dabbf1a7a30cf7f1dd60de1..0000000000000000000000000000000000000000
--- a/conversations/conv_047746.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-}
\ No newline at end of file
diff --git a/conversations/conv_047750.json b/conversations/conv_047750.json
deleted file mode 100644
index 5d450f5f1a5971ece9797f50dd680e1fe945fb65..0000000000000000000000000000000000000000
--- a/conversations/conv_047750.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.323873731307465,
-      "duration": 3.323873731307465,
-      "start_frame": 0,
-      "duration_frames": 53181,
-      "overlap": false,
-      "utterance_id": "580-126945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/580-126945.flac |",
-      "real_speaker_id": "580",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.193240066839133,
-      "end_time": 8.16689690659021,
-      "duration": 3.9736568397510768,
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-      "duration_frames": 63578,
-      "overlap": false,
-      "utterance_id": "7392-105672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-105672.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.35536864112931,
-      "end_time": 14.470144217219703,
-      "duration": 6.114775576090393,
-      "start_frame": 133685,
-      "duration_frames": 97836,
-      "overlap": true,
-      "utterance_id": "580-126945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/580-126945.flac |",
-      "real_speaker_id": "580",
-      "position_frames": 53181
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.647687089219593,
-      "end_time": 20.056976921742226,
-      "duration": 4.409289832522635,
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-      "overlap": true,
-      "utterance_id": "7392-105672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-105672.flac |",
-      "real_speaker_id": "7392",
-      "position_frames": 63578
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.760669543273035,
-      "end_time": 25.262650911280573,
-      "duration": 4.501981368007536,
-      "start_frame": 332170,
-      "duration_frames": 72031,
-      "overlap": true,
-      "utterance_id": "3989-182389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182389.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.188973988298677,
-      "end_time": 29.936900468008687,
-      "duration": 3.74792647971001,
-      "start_frame": 419023,
-      "duration_frames": 59966,
-      "overlap": false,
-      "utterance_id": "580-126947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/580-126947.flac |",
-      "real_speaker_id": "580",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.468244650541976,
-      "end_time": 32.0,
-      "duration": 1.5317553494580238,
-      "start_frame": 487491,
-      "duration_frames": 24508,
-      "overlap": false,
-      "utterance_id": "580-126945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/580-126945.flac |",
-      "real_speaker_id": "580",
-      "position_frames": 151017
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
-      "duration": 3.5507235914752386,
-      "start_time": 0.2655723004855614
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
-      "duration": 0.41732426303854875,
-      "start_time": 4.589749999091764
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7392/laugh/0110.wav",
-      "duration": 0.7613715045846228,
-      "start_time": 8.224582455740688,
-      "speaker_id": "7392"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7392/cough/0092.wav",
-      "duration": 0.8396628300415703,
-      "start_time": 8.301844432777864,
-      "speaker_id": "7392"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047751.json b/conversations/conv_047751.json
deleted file mode 100644
index 246726ac5009e8e24b5152bd307823d405501b13..0000000000000000000000000000000000000000
--- a/conversations/conv_047751.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.2744363101666947,
-      "duration": 3.2744363101666947,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3465-275761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3465-275761.flac |",
-      "real_speaker_id": "3465",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.4093181796790057,
-      "end_time": 7.2807618766199536,
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-      "overlap": false,
-      "utterance_id": "128-134883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 7.597327735193426,
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-      "duration_frames": 88139,
-      "overlap": true,
-      "utterance_id": "3465-20022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3465-20022.flac |",
-      "real_speaker_id": "3465",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.238982702499918,
-      "end_time": 20.12181501007307,
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-      "overlap": false,
-      "utterance_id": "826-131124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/826-131124.flac |",
-      "real_speaker_id": "826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.826092066131256,
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-      "duration": 4.85604350877179,
-      "start_frame": 333217,
-      "duration_frames": 77696,
-      "overlap": false,
-      "utterance_id": "3465-20021",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3465-20021.flac |",
-      "real_speaker_id": "3465",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.14182502710785,
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-      "duration": 5.858174972892151,
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-      "duration_frames": 93730,
-      "overlap": false,
-      "utterance_id": "826-131108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/826-131108.flac |",
-      "real_speaker_id": "826",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "start_time": 2.572049450580309
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-      "start_time": 22.31839666647031
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3465/laugh/0025.wav",
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-      "speaker_id": "3465"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3465/cough/0020.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "826"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3465/laugh/0084.wav",
-      "duration": 1.065035213057704,
-      "start_time": 25.937772880983708,
-      "speaker_id": "3465"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/826/laugh/0001.wav",
-      "duration": 0.5871853510479013,
-      "start_time": 25.55133077652319,
-      "speaker_id": "826"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047766.json b/conversations/conv_047766.json
deleted file mode 100644
index b68c396ef8758be9d5f49b3394d5e195e95a7122..0000000000000000000000000000000000000000
--- a/conversations/conv_047766.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6529-62556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62556.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62556.flac |",
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-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 99152
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.115670093603832,
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-      "duration": 1.884329906396168,
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-      "overlap": false,
-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 98877
-    }
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
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-      "start_time": 3.408054350283192
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_047770.json b/conversations/conv_047770.json
deleted file mode 100644
index 18b9b8995b914c04e480c4f37d95d7c63d695708..0000000000000000000000000000000000000000
--- a/conversations/conv_047770.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0002",
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-  "background_events": [],
-  "foreground_events": [
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-      "speaker_id": "1049"
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-      "duration": 0.88,
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-      "speaker_id": "7733"
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-}
\ No newline at end of file
diff --git a/conversations/conv_047782.json b/conversations/conv_047782.json
deleted file mode 100644
index c4f03ee38dec26b55c96ebd9cb61186c24276841..0000000000000000000000000000000000000000
--- a/conversations/conv_047782.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
-      "position_frames": 0
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-      "utterance_id": "4137-11702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4137-11702.flac |",
-      "real_speaker_id": "4137",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
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-      "position_frames": 130072
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "4137-11701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4137-11701.flac |",
-      "real_speaker_id": "4137",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 26.975572392664425,
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-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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\ No newline at end of file
diff --git a/conversations/conv_047785.json b/conversations/conv_047785.json
deleted file mode 100644
index ee817109318fe624b04736f8f4edbfae71d30566..0000000000000000000000000000000000000000
--- a/conversations/conv_047785.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "position_frames": 0
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-      "real_speaker_id": "2404",
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-      "real_speaker_id": "2498",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_047789.json b/conversations/conv_047789.json
deleted file mode 100644
index e683f904a25be98f35cd78d0725333c577ab404b..0000000000000000000000000000000000000000
--- a/conversations/conv_047789.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "utterance_id": "6126-10992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6126-10992.flac |",
-      "real_speaker_id": "6126",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_047793.json b/conversations/conv_047793.json
deleted file mode 100644
index 976fbc73efc3b583a2f36b112fb9cf79759f7881..0000000000000000000000000000000000000000
--- a/conversations/conv_047793.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 117971
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
-      "duration": 4.930767285829537,
-      "start_time": 12.978561393801295
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "speaker_id": "569"
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-      "speaker_id": "8266"
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-    {
-      "event_class": "cough",
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-      "duration": 1.1207870405635183,
-      "start_time": 18.700425455334006,
-      "speaker_id": "584"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8266/laugh/0008.wav",
-      "duration": 1.0,
-      "start_time": 27.329674368499838,
-      "speaker_id": "8266"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047794.json b/conversations/conv_047794.json
deleted file mode 100644
index c410b656c47640c51bc92b543cca3ade364050fd..0000000000000000000000000000000000000000
--- a/conversations/conv_047794.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.298561133019211,
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-      "overlap": false,
-      "utterance_id": "6726-56640",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.337109855666245,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 68776
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "128-134884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.800144752077205,
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-      "utterance_id": "6167-282391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-282391.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.84782751891716,
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-      "utterance_id": "128-134884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 110651
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.203158241414307,
-      "end_time": 32.0,
-      "duration": 0.7968417585856926,
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-      "overlap": false,
-      "utterance_id": "6167-73973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-73973.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "start_time": 23.003617989155128,
-      "speaker_id": "128"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047802.json b/conversations/conv_047802.json
deleted file mode 100644
index 73bd8df0af672d676d3279a800c5219a8ad8660c..0000000000000000000000000000000000000000
--- a/conversations/conv_047802.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.224477244383195,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6167-73973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-73973.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.0044385221119,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
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-      "utterance_id": "1050-134120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1050-134120.flac |",
-      "real_speaker_id": "1050",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.166656424754464,
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-      "utterance_id": "6575-67592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 73241
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "1050-134119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1050-134119.flac |",
-      "real_speaker_id": "1050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6575-67584",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67584.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6575/laugh/0045.wav",
-      "duration": 0.5526219714980648,
-      "start_time": 29.2874341360776,
-      "speaker_id": "6575"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047805.json b/conversations/conv_047805.json
deleted file mode 100644
index ea7e99b6615702458a1cafadd88c027c81daec34..0000000000000000000000000000000000000000
--- a/conversations/conv_047805.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8799-291938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-291938.flac |",
-      "real_speaker_id": "8799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.110108888777584,
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-      "utterance_id": "4800-73728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73728.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8799-270794.flac |",
-      "real_speaker_id": "8799",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "4800-73729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5456-24741.flac |",
-      "real_speaker_id": "5456",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5456-62014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5456-62014.flac |",
-      "real_speaker_id": "5456",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5456/laugh/0031.wav",
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-      "speaker_id": "5456"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047813.json b/conversations/conv_047813.json
deleted file mode 100644
index 70e85c32cf4ea8aac6ae9972aad282031d85c406..0000000000000000000000000000000000000000
--- a/conversations/conv_047813.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.42299830721509,
-      "duration": 5.42299830721509,
-      "start_frame": 0,
-      "duration_frames": 86767,
-      "overlap": false,
-      "utterance_id": "1012-133424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1012-133424.flac |",
-      "real_speaker_id": "1012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-61421.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1291-138273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138273.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "1291",
-      "position_frames": 0
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-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_047814.json b/conversations/conv_047814.json
deleted file mode 100644
index 63bc75bf665180f250b1bbf98a91e31045bb72e4..0000000000000000000000000000000000000000
--- a/conversations/conv_047814.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/669-129074.flac |",
-      "real_speaker_id": "669",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291964.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123049.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-73705.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 57400
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047818.json b/conversations/conv_047818.json
deleted file mode 100644
index e82d05bd03c508b5ca505119735f510576f3a8f8..0000000000000000000000000000000000000000
--- a/conversations/conv_047818.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1944",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.051201870433864,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1944-159230.flac |",
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-  "foreground_events": [
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_047822.json b/conversations/conv_047822.json
deleted file mode 100644
index 2be4d24525f7d5b3e8389617adafeb0f13a14c59..0000000000000000000000000000000000000000
--- a/conversations/conv_047822.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5123-29120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
-      "real_speaker_id": "6294",
-      "position_frames": 86272
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-29120.flac |",
-      "real_speaker_id": "5123",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6294-85684.flac |",
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-      "position_frames": 163723
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_047829.json b/conversations/conv_047829.json
deleted file mode 100644
index 0ccb7f144eafb6de92f801582e305ba9b742f24c..0000000000000000000000000000000000000000
--- a/conversations/conv_047829.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9555.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "8786-276749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276749.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8786-276735.flac |",
-      "real_speaker_id": "8786",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "duration": 2.8386533717294107,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4958-11613.flac |",
-      "real_speaker_id": "4958",
-      "position_frames": 96904
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-      "start_time": 25.7604522596184,
-      "speaker_id": "8786"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047834.json b/conversations/conv_047834.json
deleted file mode 100644
index 1eb7821f9c7fb417f15c6feb8e1f156f996945a2..0000000000000000000000000000000000000000
--- a/conversations/conv_047834.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.110296810613976,
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-      "utterance_id": "7223-92822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7223-92822.flac |",
-      "real_speaker_id": "7223",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
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-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 201776
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 3.2785326167166957,
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-      "utterance_id": "7223-92822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7223-92822.flac |",
-      "real_speaker_id": "7223",
-      "position_frames": 49764
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047838.json b/conversations/conv_047838.json
deleted file mode 100644
index ef8eed71f0dae0d32a50bc1274e7a99125d6e6ca..0000000000000000000000000000000000000000
--- a/conversations/conv_047838.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "7245-104888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
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-      "real_speaker_id": "6078",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54007.flac |",
-      "real_speaker_id": "6078",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047839.json b/conversations/conv_047839.json
deleted file mode 100644
index a1c25b77c7c0653d7a010c3a92cc1777571566c2..0000000000000000000000000000000000000000
--- a/conversations/conv_047839.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.571273600640083,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "overlap": false,
-      "utterance_id": "1754-140639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-140639.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
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-    {
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-      "real_speaker_id": "1754",
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-    {
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-      "start_time": 28.78413293700796,
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-      "utterance_id": "1754-137004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-137004.flac |",
-      "real_speaker_id": "1754",
-      "position_frames": 88263
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-    {
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-    {
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-      "duration": 1.2,
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-      "speaker_id": "1754"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047843.json b/conversations/conv_047843.json
deleted file mode 100644
index e09d33ac6550914ca057ee1f156737833956d6f0..0000000000000000000000000000000000000000
--- a/conversations/conv_047843.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4044-9010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4044-9010.flac |",
-      "real_speaker_id": "4044",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.089864391679022,
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-      "real_speaker_id": "2496",
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-      "event_class": "Dog",
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-      "speaker_id": "345"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047844.json b/conversations/conv_047844.json
deleted file mode 100644
index e38f6d8f6e9d8219a3d0458c7a0c35a6a06509f9..0000000000000000000000000000000000000000
--- a/conversations/conv_047844.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.348354840652217,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "211-122425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122425.flac |",
-      "real_speaker_id": "211",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.602619418568734,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86713.flac |",
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-      "utterance_id": "211-122425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122425.flac |",
-      "real_speaker_id": "211",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.45229761868057,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86713.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 82604
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 80246
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_047852.json b/conversations/conv_047852.json
deleted file mode 100644
index 8b62642beee9764b507d52b5f85ee03652cb177c..0000000000000000000000000000000000000000
--- a/conversations/conv_047852.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "utterance_id": "534-127538",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127538.flac |",
-      "real_speaker_id": "534",
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-      "real_speaker_id": "207",
-      "position_frames": 0
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-    {
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-  "foreground_events": [
-    {
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_047855.json b/conversations/conv_047855.json
deleted file mode 100644
index 12b366c9913e7d1be7fe67321a8937bc0ecc6095..0000000000000000000000000000000000000000
--- a/conversations/conv_047855.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8791-291101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
-      "real_speaker_id": "8791",
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-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
-      "real_speaker_id": "957",
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-    },
-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-      "speaker_id": "957"
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-}
\ No newline at end of file
diff --git a/conversations/conv_047859.json b/conversations/conv_047859.json
deleted file mode 100644
index 4615117cf938f8e2efe42c84ea73ede14daeeb9d..0000000000000000000000000000000000000000
--- a/conversations/conv_047859.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4116-13265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-13265.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
-      "real_speaker_id": "3871",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-3582.flac |",
-      "real_speaker_id": "4116",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047863.json b/conversations/conv_047863.json
deleted file mode 100644
index 03e406004a59c3825db93905596500b1f4121511..0000000000000000000000000000000000000000
--- a/conversations/conv_047863.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.48398594736759,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.643662487787447,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6353-63255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 65073
-    },
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 161224
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6353-63255.flac |",
-      "real_speaker_id": "6353",
-      "position_frames": 253144
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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\ No newline at end of file
diff --git a/conversations/conv_047875.json b/conversations/conv_047875.json
deleted file mode 100644
index 07a97a69abf85e0896ae90cdee181defa7c80b34..0000000000000000000000000000000000000000
--- a/conversations/conv_047875.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "real_speaker_id": "1370",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1370-140972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1370-140972.flac |",
-      "real_speaker_id": "1370",
-      "position_frames": 82828
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-      "segment_id": "seg0005",
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-      "utterance_id": "7717-105405",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
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-      "start_time": 28.76572025380785,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047879.json b/conversations/conv_047879.json
deleted file mode 100644
index 095c8bafbe1b705043b5073181c926b05e2de72b..0000000000000000000000000000000000000000
--- a/conversations/conv_047879.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1765-143010.flac |",
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-    {
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-    {
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-      "real_speaker_id": "163",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047880.json b/conversations/conv_047880.json
deleted file mode 100644
index 02e4bbd191594988da2d96aa8ac722ea770b3a44..0000000000000000000000000000000000000000
--- a/conversations/conv_047880.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "real_speaker_id": "6249",
-      "position_frames": 109992
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 28.69759243932488,
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-      "duration": 3.302407560675121,
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-      "utterance_id": "2998-160955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2998-160955.flac |",
-      "real_speaker_id": "2998",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047881.json b/conversations/conv_047881.json
deleted file mode 100644
index 41520091e4b5b66530c953fe492b1798439ded5a..0000000000000000000000000000000000000000
--- a/conversations/conv_047881.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.616531361455525,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5077-38105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38105.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.494665935461032,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3083-7943.flac |",
-      "real_speaker_id": "3083",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38099.flac |",
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-      "real_speaker_id": "1691",
-      "position_frames": 110840
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-      "speaker_id": 0,
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-      "utterance_id": "5077-38099",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38099.flac |",
-      "real_speaker_id": "5077",
-      "position_frames": 72686
-    }
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047896.json b/conversations/conv_047896.json
deleted file mode 100644
index 07f2a69876f4d9371c11b423ce8f790e9e1b1fa4..0000000000000000000000000000000000000000
--- a/conversations/conv_047896.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3703-73732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-73732.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-14653.flac |",
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-      "real_speaker_id": "3703",
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-    {
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-      "utterance_id": "1212-185485",
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-      "position_frames": 53320
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-  "background_events": [
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047901.json b/conversations/conv_047901.json
deleted file mode 100644
index cfe064822ba9f989cb5bebd07734a8972cae4198..0000000000000000000000000000000000000000
--- a/conversations/conv_047901.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-    {
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-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6249/laugh/0010.wav",
-      "duration": 1.1348806439201162,
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-      "speaker_id": "6249"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9415224184166624,
-      "start_time": 7.764453733324119,
-      "speaker_id": "192"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047906.json b/conversations/conv_047906.json
deleted file mode 100644
index e03ca9b2f39e3a29e698aaefc7c2f44ad8d166b6..0000000000000000000000000000000000000000
--- a/conversations/conv_047906.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.64506508311888,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.6902358455313413,
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-      "overlap": false,
-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.02229304652291,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-152975.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.788084233550705,
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-      "utterance_id": "3142-160977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
-      "real_speaker_id": "3142",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.415597355487957,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-166575.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.686687847055723,
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-      "duration": 5.533531684474121,
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-      "duration_frames": 88536,
-      "overlap": false,
-      "utterance_id": "3142-160977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
-      "real_speaker_id": "3142",
-      "position_frames": 57535
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.05107243252649,
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-      "duration": 5.593992650592389,
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-      "duration_frames": 89503,
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-      "utterance_id": "681-152975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/681-152975.flac |",
-      "real_speaker_id": "681",
-      "position_frames": 81063
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-      "start_time": 5.430544873446715
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-  "paralinguistic_events": [
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-      "duration": 0.88,
-      "start_time": 9.211832240857584,
-      "speaker_id": "681"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/681/cough/0049.wav",
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-      "duration": 0.5968669500459804,
-      "start_time": 18.55514125458047,
-      "speaker_id": "681"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047910.json b/conversations/conv_047910.json
deleted file mode 100644
index 801c6049d9a3275f7152746ce5ff3d3bdf53ffd4..0000000000000000000000000000000000000000
--- a/conversations/conv_047910.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2397-162238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162238.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.43545245298446,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258954.flac |",
-      "real_speaker_id": "7520",
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-    {
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-      "utterance_id": "2397-162253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162253.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "3703-71531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.346265755211007,
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-      "utterance_id": "7520-258986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.967474359598015,
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-      "duration_frames": 60576,
-      "overlap": false,
-      "utterance_id": "3703-73732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-73732.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.607831832729158,
-      "end_time": 32.0,
-      "duration": 2.3921681672708424,
-      "start_frame": 473725,
-      "duration_frames": 38274,
-      "overlap": false,
-      "utterance_id": "7520-258986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 98812
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7520/cough/0093.wav",
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-      "duration": 1.28,
-      "start_time": 24.62869514512248,
-      "speaker_id": "7520"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7520/laugh/0013.wav",
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-      "start_time": 30.96453971908435,
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-    {
-      "event_class": "cough",
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-      "duration": 1.025732008869703,
-      "start_time": 28.46617757978427,
-      "speaker_id": "7520"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047917.json b/conversations/conv_047917.json
deleted file mode 100644
index 3464ed7a6bd38dcdc5643dc6cb9d6ecbc230bd3b..0000000000000000000000000000000000000000
--- a/conversations/conv_047917.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2039-141209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.058640337289749,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41166.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "210-129396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.715158016702235,
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-      "utterance_id": "2039-141208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141208.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.648192731792225,
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-      "real_speaker_id": "2039",
-      "position_frames": 73167
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/210-129396.flac |",
-      "real_speaker_id": "210",
-      "position_frames": 60049
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 27.214004206455247,
-      "end_time": 32.0,
-      "duration": 4.785995793544753,
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-      "overlap": false,
-      "utterance_id": "5637-41170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41170.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5637/cough/0086.wav",
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-      "start_time": 10.487109968417988,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/210/laugh/0012.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047926.json b/conversations/conv_047926.json
deleted file mode 100644
index 128d2dd9e9e75bdc1ce440f69acc53e786e1d7f8..0000000000000000000000000000000000000000
--- a/conversations/conv_047926.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8023-286250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286250.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "636",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3097-165353.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.498340565803872,
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-      "utterance_id": "8023-286247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286247.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/636-128310.flac |",
-      "real_speaker_id": "636",
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-      "event_class": "Cat",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "duration": 1.6,
-      "start_time": 16.82357120653937,
-      "speaker_id": "3097"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047930.json b/conversations/conv_047930.json
deleted file mode 100644
index 489d96414bffa50d8b732e6e23c10215ae3e56b2..0000000000000000000000000000000000000000
--- a/conversations/conv_047930.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.333932335932534,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.578289988904206,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41146.flac |",
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-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 82842
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-      "segment_id": "seg0003",
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-      "utterance_id": "4218-41157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41157.flac |",
-      "real_speaker_id": "4218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.72577624433945,
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-      "duration_frames": 99381,
-      "overlap": false,
-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 158512
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.28853358039749,
-      "end_time": 31.333932335932534,
-      "duration": 1.045398755535043,
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-      "duration_frames": 16726,
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-      "utterance_id": "4218-41159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41159.flac |",
-      "real_speaker_id": "4218",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047940.json b/conversations/conv_047940.json
deleted file mode 100644
index 7363bc922ffd7b0ef6f9258c8a5fa415995b3595..0000000000000000000000000000000000000000
--- a/conversations/conv_047940.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7339-86765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7339-86765.flac |",
-      "real_speaker_id": "7339",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.421170965013053,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8674.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7339-86804.flac |",
-      "real_speaker_id": "7339",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.194326921587422,
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-      "utterance_id": "2397-162238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162238.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7339-86804.flac |",
-      "real_speaker_id": "7339",
-      "position_frames": 50876
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.886339711797373,
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-      "overlap": false,
-      "utterance_id": "2397-162239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162239.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 0
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-  "background_events": [
-    {
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-      "event_class": "Dishes",
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-      "event_class": "laugh",
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-      "duration": 1.16,
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-      "speaker_id": "5810"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7339/laugh/0082.wav",
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-      "speaker_id": "7339"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047947.json b/conversations/conv_047947.json
deleted file mode 100644
index 479051e3f17b4488892357b4a0830f93aa6c06d9..0000000000000000000000000000000000000000
--- a/conversations/conv_047947.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7881-110131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-110131.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "duration_frames": 89636,
-      "overlap": false,
-      "utterance_id": "5199-18509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-18509.flac |",
-      "real_speaker_id": "5199",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7881-109662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-109662.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.961812059832422,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-18509.flac |",
-      "real_speaker_id": "5199",
-      "position_frames": 89636
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.316655820048755,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-109662.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 70255
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-18509.flac |",
-      "real_speaker_id": "5199",
-      "position_frames": 138933
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 2.3708546732640343,
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-      "utterance_id": "7881-105574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-105574.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5199/cough/0066.wav",
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-      "start_time": 17.612245712700318,
-      "speaker_id": "5199"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5199/cough/0104.wav",
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-      "start_time": 29.245800391013923,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7881/cough/0023.wav",
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-      "start_time": 30.277256711780524,
-      "speaker_id": "7881"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047951.json b/conversations/conv_047951.json
deleted file mode 100644
index 4f1167fa7aeb695381e2047c79a61957e2420d95..0000000000000000000000000000000000000000
--- a/conversations/conv_047951.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.551645822666025,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3274-167022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3274-167022.flac |",
-      "real_speaker_id": "3274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_047956.json b/conversations/conv_047956.json
deleted file mode 100644
index 9aa57f32453c9653b66e5f26e2be235e66c902ad..0000000000000000000000000000000000000000
--- a/conversations/conv_047956.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_047967.json b/conversations/conv_047967.json
deleted file mode 100644
index a503bc0a1a0851cd9e04e20d6dd09494be0f5e0a..0000000000000000000000000000000000000000
--- a/conversations/conv_047967.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_047971.json b/conversations/conv_047971.json
deleted file mode 100644
index 7c9bed7261ef44b05e4e097c13b71898d2b8b7f0..0000000000000000000000000000000000000000
--- a/conversations/conv_047971.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6106/laugh/0040.wav",
-      "duration": 1.44,
-      "start_time": 0,
-      "speaker_id": "6106"
-    },
-    {
-      "event_class": "laugh",
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-      "duration": 0.5945704007201709,
-      "start_time": 11.085282839113752,
-      "speaker_id": "5386"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047983.json b/conversations/conv_047983.json
deleted file mode 100644
index 8723c1901905e23c134a013cdffaf3641d4662fe..0000000000000000000000000000000000000000
--- a/conversations/conv_047983.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.248543804877404,
-      "duration": 3.248543804877404,
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-      "overlap": false,
-      "utterance_id": "7073-114963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.103277404967007,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
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-      "utterance_id": "6534-71091",
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-      "real_speaker_id": "6534",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
-      "real_speaker_id": "7073",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.738840934129133,
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-      "utterance_id": "7073-92170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-92170.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.274333113468025,
-      "end_time": 28.09679959120715,
-      "duration": 3.822466477739126,
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-      "duration_frames": 61159,
-      "overlap": false,
-      "utterance_id": "366-126663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-126663.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.312547867633036,
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-      "duration": 3.687452132366964,
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-      "utterance_id": "7073-114963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
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-      "duration": 1.2,
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-      "event_class": "laugh",
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-      "start_time": 22.845264983898105,
-      "speaker_id": "366"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047984.json b/conversations/conv_047984.json
deleted file mode 100644
index a071b8d2b8b9a7705bcb14c03d5ee8a1ae56e725..0000000000000000000000000000000000000000
--- a/conversations/conv_047984.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1748-1562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1562.flac |",
-      "real_speaker_id": "1748",
-      "position_frames": 0
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-      "real_speaker_id": "2167",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1748-1562.flac |",
-      "real_speaker_id": "1748",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149881.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 68533
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.142375539733546,
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-      "overlap": false,
-      "utterance_id": "3235-28433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-28433.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 101875
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2167/laugh/0050.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_047988.json b/conversations/conv_047988.json
deleted file mode 100644
index 7907fa0a3ffa6f28e2a0193a43b60d32d00c6ad4..0000000000000000000000000000000000000000
--- a/conversations/conv_047988.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127535.flac |",
-      "real_speaker_id": "307",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047992.json b/conversations/conv_047992.json
deleted file mode 100644
index 17d577c674a04c0aaf64acbf4b14aff8f152e022..0000000000000000000000000000000000000000
--- a/conversations/conv_047992.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261139.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6568-79375.flac |",
-      "real_speaker_id": "6568",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261139.flac |",
-      "real_speaker_id": "8629",
-      "position_frames": 59138
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-    {
-      "segment_id": "seg0007",
-      "speaker_id": 0,
-      "start_time": 30.903941159406273,
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-      "duration": 1.0960588405937273,
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-      "utterance_id": "4848-28247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-28247.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6568/laugh/0021.wav",
-      "duration": 0.7121565395801701,
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_047993.json b/conversations/conv_047993.json
deleted file mode 100644
index 7e1d1a0d0e6398c4ecb4ca06c753c4d32f651b72..0000000000000000000000000000000000000000
--- a/conversations/conv_047993.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.689798025743535,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.8047565873934035,
-      "duration": 4.8047565873934035,
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-      "duration_frames": 76876,
-      "overlap": false,
-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.587155846977862,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.91406602718075,
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-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 76876
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.283174338498974,
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-      "duration_frames": 75259,
-      "overlap": false,
-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 159458
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.148439938411677,
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-      "utterance_id": "153-126652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126652.flac |",
-      "real_speaker_id": "153",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.47133310643477,
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-      "utterance_id": "408-122806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/408-122806.flac |",
-      "real_speaker_id": "408",
-      "position_frames": 234717
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048000.json b/conversations/conv_048000.json
deleted file mode 100644
index 9329b102fc49f1b7b50787e39be6a1eb670a0407..0000000000000000000000000000000000000000
--- a/conversations/conv_048000.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7512-98636.flac |",
-      "real_speaker_id": "7512",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
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-      "overlap": false,
-      "utterance_id": "7553-101289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101289.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "2238-121413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121413.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7553-101278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7553-101278.flac |",
-      "real_speaker_id": "7553",
-      "position_frames": 88914
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2238-121415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "2238"
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_048016.json b/conversations/conv_048016.json
deleted file mode 100644
index ffcf53927d6eafc331234138f2f80a252209845d..0000000000000000000000000000000000000000
--- a/conversations/conv_048016.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "2568-156118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156118.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.048904982914981,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156117.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
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-    {
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-      "utterance_id": "5244-59146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5244-59146.flac |",
-      "real_speaker_id": "5244",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156118.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 79106
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.881133473242574,
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-      "real_speaker_id": "5914",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 27.011439227521393,
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-      "utterance_id": "2568-156116",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048020.json b/conversations/conv_048020.json
deleted file mode 100644
index 88096defd36ff1300fde0ea27e4da1cc68ef6b32..0000000000000000000000000000000000000000
--- a/conversations/conv_048020.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.895848089123847,
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-      "overlap": false,
-      "utterance_id": "5727-47032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47032.flac |",
-      "real_speaker_id": "5727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.6429632560279614,
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-      "utterance_id": "2920-156224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156224.flac |",
-      "real_speaker_id": "2920",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "5278-40890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40890.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5727-47032.flac |",
-      "real_speaker_id": "5727",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.51605938518837,
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-      "duration": 2.4839406148116296,
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-      "utterance_id": "5278-40890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40890.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048027.json b/conversations/conv_048027.json
deleted file mode 100644
index 5ed5ff3b3c1bd2f13405e975a447b481739af091..0000000000000000000000000000000000000000
--- a/conversations/conv_048027.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.07868983615597,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2568-156115",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156115.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 6.403983640364726,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-61949.flac |",
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-      "utterance_id": "5784-36627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5784-36627.flac |",
-      "real_speaker_id": "5784",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.321201631049576,
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-      "utterance_id": "2568-156118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156118.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "3879-174923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-174923.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.4397573889939,
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-      "duration_frames": 58222,
-      "overlap": true,
-      "utterance_id": "3879-173592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-      "duration": 1.36,
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-      "event_class": "laugh",
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-      "speaker_id": "5784"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048031.json b/conversations/conv_048031.json
deleted file mode 100644
index e0484c6bebf86b58d6d4d1638f53aa1f73e6933e..0000000000000000000000000000000000000000
--- a/conversations/conv_048031.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.077646855206478,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "6724-73991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73991.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6724",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127538.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127537.flac |",
-      "real_speaker_id": "534",
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-      "utterance_id": "534-123059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-123059.flac |",
-      "real_speaker_id": "534",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/534/laugh/0026.wav",
-      "duration": 0.7380898966219871,
-      "start_time": 24.620045369814072,
-      "speaker_id": "534"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048036.json b/conversations/conv_048036.json
deleted file mode 100644
index 7eec741d92a620d6daa81901913a30f81f5f5364..0000000000000000000000000000000000000000
--- a/conversations/conv_048036.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.300187030617818,
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-      "overlap": false,
-      "utterance_id": "5975-54006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
-      "real_speaker_id": "5975",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176682.flac |",
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-      "real_speaker_id": "5975",
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-    {
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-      "utterance_id": "5935-55927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-55927.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.40988750746273,
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-      "real_speaker_id": "5935",
-      "position_frames": 105000
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
-      "real_speaker_id": "5975",
-      "position_frames": 133485
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "start_time": 29.09187748878492,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048040.json b/conversations/conv_048040.json
deleted file mode 100644
index dcb126b79e73f921f57ea0163f7a773638eecab3..0000000000000000000000000000000000000000
--- a/conversations/conv_048040.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.696160487707555,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
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-      "end_time": 4.848218461743362,
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-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2930",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.028773622975816,
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\ No newline at end of file
diff --git a/conversations/conv_048041.json b/conversations/conv_048041.json
deleted file mode 100644
index e3370103669cf9c6701733479419a6010bb14627..0000000000000000000000000000000000000000
--- a/conversations/conv_048041.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-43306.flac |",
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-      "position_frames": 62558
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_048057.json b/conversations/conv_048057.json
deleted file mode 100644
index aab31a9d86f15c40cc71b8ca0feb04c294b4010c..0000000000000000000000000000000000000000
--- a/conversations/conv_048057.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_048061.json b/conversations/conv_048061.json
deleted file mode 100644
index d18c11219678aad40e16a9306ec61b29ad16c2be..0000000000000000000000000000000000000000
--- a/conversations/conv_048061.json
+++ /dev/null
@@ -1,88 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.70153834903656,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
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-      "position_frames": 0
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-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-    {
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_048066.json b/conversations/conv_048066.json
deleted file mode 100644
index f143adcce7e3d38537cd03b41da78ab29925f6d5..0000000000000000000000000000000000000000
--- a/conversations/conv_048066.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-48224.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 73531
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6583/laugh/0006.wav",
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-      "speaker_id": "6583"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2418943020353146,
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-      "speaker_id": "909"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6583/laugh/0129.wav",
-      "duration": 0.72,
-      "start_time": 27.934987885046088,
-      "speaker_id": "6583"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048070.json b/conversations/conv_048070.json
deleted file mode 100644
index 2b05ea7289305d41d15f8d9c0ea0d89e0f69476a..0000000000000000000000000000000000000000
--- a/conversations/conv_048070.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 6.369091253587136,
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-      "utterance_id": "6902-89165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89165.flac |",
-      "real_speaker_id": "6902",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.9629815180826995,
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-      "utterance_id": "7783-107487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107487.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89167.flac |",
-      "real_speaker_id": "6902",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107486.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.760822757369457,
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-      "utterance_id": "6902-89165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89165.flac |",
-      "real_speaker_id": "6902",
-      "position_frames": 101905
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.91261111364423,
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-      "duration": 3.911139736527939,
-      "start_frame": 430601,
-      "duration_frames": 62578,
-      "overlap": false,
-      "utterance_id": "7783-107487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7783-107487.flac |",
-      "real_speaker_id": "7783",
-      "position_frames": 89555
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.358479531570335,
-      "end_time": 32.0,
-      "duration": 0.6415204684296647,
-      "start_frame": 501735,
-      "duration_frames": 10264,
-      "overlap": false,
-      "utterance_id": "167-15255",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/167-15255.flac |",
-      "real_speaker_id": "167",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 23.123673469387754,
-      "start_time": 4.691434508279979
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6902/laugh/0070.wav",
-      "duration": 1.16,
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-      "speaker_id": "6902"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0707305823783067,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/167/laugh/0023.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "167"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048077.json b/conversations/conv_048077.json
deleted file mode 100644
index 003578b8737506d17622bc44180d3fbcc4c1b4a1..0000000000000000000000000000000000000000
--- a/conversations/conv_048077.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3945-890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3945-890.flac |",
-      "real_speaker_id": "3945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58845.flac |",
-      "real_speaker_id": "6104",
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-      "overlap": false,
-      "utterance_id": "5198-204975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204975.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.96639204538302,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204975.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 91654
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.059588490219262,
-      "end_time": 25.16003175808907,
-      "duration": 5.100443267869805,
-      "start_frame": 320953,
-      "duration_frames": 81607,
-      "overlap": false,
-      "utterance_id": "3945-29110",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3945-29110.flac |",
-      "real_speaker_id": "3945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.676692400326335,
-      "end_time": 32.0,
-      "duration": 6.323307599673665,
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-      "duration_frames": 101172,
-      "overlap": false,
-      "utterance_id": "6104-58843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58843.flac |",
-      "real_speaker_id": "6104",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "5198"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048082.json b/conversations/conv_048082.json
deleted file mode 100644
index 68026fc86b5b65fd745714f2db72d24f201153a3..0000000000000000000000000000000000000000
--- a/conversations/conv_048082.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4358-20034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-20034.flac |",
-      "real_speaker_id": "4358",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "957",
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-      "real_speaker_id": "5660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.24299297526679,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
-      "real_speaker_id": "957",
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.5824195348998025,
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-      "duration_frames": 41318,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5660-101892.flac |",
-      "real_speaker_id": "5660",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_048089.json b/conversations/conv_048089.json
deleted file mode 100644
index a872662d1b7a59d899a702e799aa29d0ab60f05d..0000000000000000000000000000000000000000
--- a/conversations/conv_048089.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "real_speaker_id": "3503",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "211",
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-      "utterance_id": "211-122425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/211-122425.flac |",
-      "real_speaker_id": "211",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
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\ No newline at end of file
diff --git a/conversations/conv_048094.json b/conversations/conv_048094.json
deleted file mode 100644
index 38b8f94513c808f7e1b5aa1e2f89355db8cf7878..0000000000000000000000000000000000000000
--- a/conversations/conv_048094.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130974.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7926-254948.flac |",
-      "real_speaker_id": "7926",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "3830-12535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12535.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 26.292962321829915,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130974.flac |",
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3830/laugh/0042.wav",
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\ No newline at end of file
diff --git a/conversations/conv_048098.json b/conversations/conv_048098.json
deleted file mode 100644
index af948c9064d09b6dd2b93141c8c9508f4f4528d6..0000000000000000000000000000000000000000
--- a/conversations/conv_048098.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-157945.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 82746
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_048104.json b/conversations/conv_048104.json
deleted file mode 100644
index 0e3066e1c05da1daf78f582ba1c68b94f7eb49f3..0000000000000000000000000000000000000000
--- a/conversations/conv_048104.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
-      "real_speaker_id": "36",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-105574.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "7881",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_048108.json b/conversations/conv_048108.json
deleted file mode 100644
index 24a1224112c328ca259e52c0346d4edba9d85c34..0000000000000000000000000000000000000000
--- a/conversations/conv_048108.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.171223345891804,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0002",
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-      "utterance_id": "1263-141777",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-162846.flac |",
-      "real_speaker_id": "243",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "duration": 1.16,
-      "start_time": 0,
-      "speaker_id": "2312"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048109.json b/conversations/conv_048109.json
deleted file mode 100644
index a00f6ed8d41aaffb3f8bf60000f84045a9aafca4..0000000000000000000000000000000000000000
--- a/conversations/conv_048109.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.459739240438873,
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-      "utterance_id": "1724-395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1724-395.flac |",
-      "real_speaker_id": "1724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.286334222839068,
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-      "utterance_id": "7148-59157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-59157.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.978669645020954,
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-      "overlap": false,
-      "utterance_id": "5637-41166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41166.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.08659109731943,
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-      "utterance_id": "7148-82991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7148-82991.flac |",
-      "real_speaker_id": "7148",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.006851918671764,
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-      "utterance_id": "5637-41170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41170.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.416095449211916,
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-      "utterance_id": "1724-395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1724-395.flac |",
-      "real_speaker_id": "1724",
-      "position_frames": 71355
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_048112.json b/conversations/conv_048112.json
deleted file mode 100644
index 9f45aaf8ed428b303ef0bb2a9496950798da49cd..0000000000000000000000000000000000000000
--- a/conversations/conv_048112.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26995.flac |",
-      "real_speaker_id": "5141",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26995.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 59271
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.68378252484753,
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-      "utterance_id": "8765-295000",
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-      "real_speaker_id": "8765",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110742.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_048123.json b/conversations/conv_048123.json
deleted file mode 100644
index eb073e7ebaa3f556e9ca655dc42efaf2cd9eb425..0000000000000000000000000000000000000000
--- a/conversations/conv_048123.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-2301.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/816-53638.flac |",
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-      "utterance_id": "2660-154321",
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-    {
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-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_048124.json b/conversations/conv_048124.json
deleted file mode 100644
index fba6750b74ef2544bbd2402cbbda5142adaa6ece..0000000000000000000000000000000000000000
--- a/conversations/conv_048124.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1473-135657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
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-      "utterance_id": "1773-139602",
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-    {
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1473/laugh/0066.wav",
-      "duration": 1.24,
-      "start_time": 24.351400042022114,
-      "speaker_id": "1473"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8675/laugh/0100.wav",
-      "duration": 0.9197101009971438,
-      "start_time": 30.32154609849398,
-      "speaker_id": "8675"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8675/cough/0011.wav",
-      "duration": 1.159144492352757,
-      "start_time": 30.840855507647245,
-      "speaker_id": "8675"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048128.json b/conversations/conv_048128.json
deleted file mode 100644
index abc8fc79853a3e26f70716d5b924d4e0cf5b2551..0000000000000000000000000000000000000000
--- a/conversations/conv_048128.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6195651805110254,
-      "duration": 3.6195651805110254,
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-      "overlap": false,
-      "utterance_id": "4441-76263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76263.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.925123238238539,
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-      "duration": 4.519547118126228,
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-      "duration_frames": 72312,
-      "overlap": true,
-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.02208095508355,
-      "end_time": 14.584974288481725,
-      "duration": 5.562893333398175,
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-      "duration_frames": 89006,
-      "overlap": true,
-      "utterance_id": "8300-275128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275128.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.947025305740024,
-      "end_time": 22.338248009452986,
-      "duration": 6.391222703712963,
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-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 72312
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.080274969155603,
-      "end_time": 28.602462711913653,
-      "duration": 5.522187742758051,
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-      "utterance_id": "4441-76262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4441-76262.flac |",
-      "real_speaker_id": "4441",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.004632402155558,
-      "end_time": 32.0,
-      "duration": 2.9953675978444423,
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-      "duration_frames": 47925,
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-      "utterance_id": "8300-275128",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8300-275128.flac |",
-      "real_speaker_id": "8300",
-      "position_frames": 89006
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
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-      "start_time": 12.03619406895547
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6358/cough/0140.wav",
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-      "speaker_id": "8300"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048132.json b/conversations/conv_048132.json
deleted file mode 100644
index 8af1b2a21cb40ca3bb9588b99013d8809351dfb1..0000000000000000000000000000000000000000
--- a/conversations/conv_048132.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5029-80197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-80197.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.6292289355844245,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4837-285896.flac |",
-      "real_speaker_id": "4837",
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-      "utterance_id": "5029-30593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-30593.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.71621097951669,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/534-127537.flac |",
-      "real_speaker_id": "534",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.02991644598452,
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-      "overlap": true,
-      "utterance_id": "4837-302000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4837-302000.flac |",
-      "real_speaker_id": "4837",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.234422329194537,
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-      "duration": 1.7655776708054631,
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-      "overlap": false,
-      "utterance_id": "5029-80197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5029-80197.flac |",
-      "real_speaker_id": "5029",
-      "position_frames": 93857
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-      "start_time": 8.890728825733943
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_048135.json b/conversations/conv_048135.json
deleted file mode 100644
index 290970614703566f8e6f0000c4842e8515e0e975..0000000000000000000000000000000000000000
--- a/conversations/conv_048135.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2533-149939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
-      "real_speaker_id": "2533",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64159.flac |",
-      "real_speaker_id": "2234",
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-    {
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-      "overlap": false,
-      "utterance_id": "1323-138548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138548.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2533-149939.flac |",
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-      "position_frames": 64329
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2234-64131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64131.flac |",
-      "real_speaker_id": "2234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2234-64139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64139.flac |",
-      "real_speaker_id": "2234",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2234/laugh/0035.wav",
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-    {
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-    {
-      "event_class": "cough",
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-    {
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-      "duration": 1.36,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "2234"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048145.json b/conversations/conv_048145.json
deleted file mode 100644
index d2395031722e1386633d7175beb6e527cab8141e..0000000000000000000000000000000000000000
--- a/conversations/conv_048145.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7354-87667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
-      "real_speaker_id": "7354",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.68201195527469,
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-      "duration_frames": 89757,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6364-65393.flac |",
-      "real_speaker_id": "6364",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "7354-87667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87667.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6364/cough/0120.wav",
-      "duration": 0.9658730917251561,
-      "start_time": 3.6896288331720366,
-      "speaker_id": "6364"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048149.json b/conversations/conv_048149.json
deleted file mode 100644
index 8209d247d8e7cfcc054eb7902650cf99d9553c47..0000000000000000000000000000000000000000
--- a/conversations/conv_048149.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.083185509103682,
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-      "overlap": false,
-      "utterance_id": "7391-60445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7391-60445.flac |",
-      "real_speaker_id": "7391",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.0697221517876105,
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-      "duration": 6.007897297476008,
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-      "utterance_id": "4967-26553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-26553.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4967-28868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-28868.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.693885450857017,
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-      "utterance_id": "6030-57826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57826.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.844306691855838,
-      "end_time": 31.177177917547006,
-      "duration": 6.33287122569117,
-      "start_frame": 397508,
-      "duration_frames": 101325,
-      "overlap": false,
-      "utterance_id": "4967-26553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-26553.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 96126
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.34002322384774,
-      "end_time": 32.0,
-      "duration": 0.6599767761522592,
-      "start_frame": 501440,
-      "duration_frames": 10559,
-      "overlap": false,
-      "utterance_id": "6030-57826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57826.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 74134
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7391/cough/0101.wav",
-      "duration": 1.1030916054828825,
-      "start_time": 0,
-      "speaker_id": "7391"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4967/cough/0037.wav",
-      "duration": 0.8,
-      "start_time": 19.03952895112364,
-      "speaker_id": "4967"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048153.json b/conversations/conv_048153.json
deleted file mode 100644
index 7f6eb8b076dfc465bcc5fe195e7e3ef11474c020..0000000000000000000000000000000000000000
--- a/conversations/conv_048153.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.052466033855688,
-      "duration": 4.052466033855688,
-      "start_frame": 0,
-      "duration_frames": 64839,
-      "overlap": false,
-      "utterance_id": "4034-12475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-12475.flac |",
-      "real_speaker_id": "4034",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.576473677472723,
-      "end_time": 9.432644738584873,
-      "duration": 4.85617106111215,
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-      "utterance_id": "4034-12475",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4034-12475.flac |",
-      "real_speaker_id": "4034",
-      "position_frames": 64839
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.578041995293063,
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-      "utterance_id": "4321-15217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-15217.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.215446435299995,
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-      "overlap": false,
-      "utterance_id": "8324-286682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286682.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.418208276720314,
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-      "utterance_id": "4321-15217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-15217.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 73391
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.73912589116197,
-      "end_time": 32.0,
-      "duration": 1.2608741088380313,
-      "start_frame": 491826,
-      "duration_frames": 20173,
-      "overlap": false,
-      "utterance_id": "8324-286681",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286681.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4034/laugh/0050.wav",
-      "duration": 1.76,
-      "start_time": 1.3811530241773073,
-      "speaker_id": "4034"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4034/laugh/0016.wav",
-      "duration": 0.7345527502111036,
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-      "speaker_id": "4034"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4034/cough/0118.wav",
-      "duration": 1.16,
-      "start_time": 6.333955571393119,
-      "speaker_id": "4034"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4321/laugh/0074.wav",
-      "duration": 1.28,
-      "start_time": 14.232266192922939,
-      "speaker_id": "4321"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048162.json b/conversations/conv_048162.json
deleted file mode 100644
index e477d078bea0641fccdd5846f67950111bb94af2..0000000000000000000000000000000000000000
--- a/conversations/conv_048162.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.062050980420945,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 90652,
-      "overlap": false,
-      "utterance_id": "3595-176633",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3595-176633.flac |",
-      "real_speaker_id": "3595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.000741759547828,
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-      "duration_frames": 103636,
-      "overlap": false,
-      "utterance_id": "3825-134160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134160.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.483468547441667,
-      "end_time": 18.792816724715884,
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-      "duration_frames": 68949,
-      "overlap": false,
-      "utterance_id": "3595-191322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3595-191322.flac |",
-      "real_speaker_id": "3595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.388364700421874,
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-      "duration_frames": 74778,
-      "overlap": false,
-      "utterance_id": "3595-176646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3595-176646.flac |",
-      "real_speaker_id": "3595",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
-      "duration": 0.2008390022675737,
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
-      "duration": 4.377289649032527,
-      "start_time": 25.973611402984897
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_048165.json b/conversations/conv_048165.json
deleted file mode 100644
index e29f59724edea865cf4d535ff9ee8a62c03c549e..0000000000000000000000000000000000000000
--- a/conversations/conv_048165.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.604099868561224,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.08296788152746,
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-      "overlap": false,
-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.256955488358571,
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-      "overlap": false,
-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 81327
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration": 5.402068441664658,
-      "start_frame": 201745,
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-      "overlap": false,
-      "utterance_id": "1460-138290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.446439249816304,
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-      "duration_frames": 106129,
-      "overlap": false,
-      "utterance_id": "1460-138289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138289.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.877175324267427,
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-      "utterance_id": "3686-171134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171134.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_3.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.02,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048169.json b/conversations/conv_048169.json
deleted file mode 100644
index de300b21c2782e170308777594e2ed3d0a897885..0000000000000000000000000000000000000000
--- a/conversations/conv_048169.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.04476653561483,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1387-130993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1387-130993.flac |",
-      "real_speaker_id": "1387",
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\ No newline at end of file
diff --git a/conversations/conv_048173.json b/conversations/conv_048173.json
deleted file mode 100644
index e6f9746129e5b85fb17e37e4dc5313fcf37922b4..0000000000000000000000000000000000000000
--- a/conversations/conv_048173.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73296.flac |",
-      "real_speaker_id": "6696",
-      "position_frames": 0
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-      "start_time": 18.454516132431838,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100425.flac |",
-      "real_speaker_id": "7502",
-      "position_frames": 67551
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6356-271890.flac |",
-      "real_speaker_id": "6356",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-73295.flac |",
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-      "position_frames": 0
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-  "background_events": [],
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_6.wav",
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\ No newline at end of file
diff --git a/conversations/conv_048174.json b/conversations/conv_048174.json
deleted file mode 100644
index fcc51cc2ee2007bc745286d6b1104a8ca7f37e70..0000000000000000000000000000000000000000
--- a/conversations/conv_048174.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2587-163454",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-163454.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115687.flac |",
-      "real_speaker_id": "8119",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
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-      "position_frames": 56058
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048186.json b/conversations/conv_048186.json
deleted file mode 100644
index 328f97b93eba2302fa54b0841f5bced2edeeeaf4..0000000000000000000000000000000000000000
--- a/conversations/conv_048186.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_frame": 0,
-      "duration_frames": 58960,
-      "overlap": false,
-      "utterance_id": "4931-28257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28257.flac |",
-      "real_speaker_id": "4931",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.291913769921325,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12155.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/978-125137.flac |",
-      "real_speaker_id": "978",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.88634307406547,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12159.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12159.flac |",
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-      "position_frames": 64042
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-      "utterance_id": "4931-28257",
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-      "real_speaker_id": "4931",
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4931-28242.flac |",
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-    {
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-      "speaker_id": "4931"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048190.json b/conversations/conv_048190.json
deleted file mode 100644
index 0e092617547b0858d9f8c799e5712f7bdc8fce07..0000000000000000000000000000000000000000
--- a/conversations/conv_048190.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.508695497244474,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7008-34667.flac |",
-      "real_speaker_id": "7008",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "5325",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_048201.json b/conversations/conv_048201.json
deleted file mode 100644
index 5d4cff26c1edd95f1671a8388ef50277e68c70dc..0000000000000000000000000000000000000000
--- a/conversations/conv_048201.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7507-100660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100660.flac |",
-      "real_speaker_id": "7507",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
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-      "utterance_id": "7507-100453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100453.flac |",
-      "real_speaker_id": "7507",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6849-69603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
-      "real_speaker_id": "6849",
-      "position_frames": 64922
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1165-135220.flac |",
-      "real_speaker_id": "1165",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6849-69603.flac |",
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-      "position_frames": 171343
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-  "foreground_events": [
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-      "speaker_id": "7507"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048217.json b/conversations/conv_048217.json
deleted file mode 100644
index 3c7705a0cfde0d2a4629622f2fe7ac98855e1263..0000000000000000000000000000000000000000
--- a/conversations/conv_048217.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.930858577667188,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-66279.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
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-      "segment_id": "seg0003",
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-      "utterance_id": "6211-60544",
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-      "real_speaker_id": "6211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.559990902358194,
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-      "utterance_id": "7239-63500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
-      "real_speaker_id": "7239",
-      "position_frames": 0
-    }
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-  "background_events": [
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-      "event_class": "Running_water",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048220.json b/conversations/conv_048220.json
deleted file mode 100644
index 91e7222a113ecce352d76335e225fb3cfef11441..0000000000000000000000000000000000000000
--- a/conversations/conv_048220.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "5968-71320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-71320.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.274088206372564,
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-      "utterance_id": "7342-73961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-73961.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-254918.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7514",
-      "position_frames": 71161
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 74935
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "speaker_id": "7342"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048221.json b/conversations/conv_048221.json
deleted file mode 100644
index b016a0e160b91a8a378d5afb791bb77fa8eac355..0000000000000000000000000000000000000000
--- a/conversations/conv_048221.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.872383212357104,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-121528.flac |",
-      "real_speaker_id": "258",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6821-276753.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1867-148436.flac |",
-      "real_speaker_id": "1867",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.392700779442954,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-121528.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 57247
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 0.96,
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-      "speaker_id": "1867"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6821/laugh/0015.wav",
-      "duration": 1.52,
-      "start_time": 12.215597941354257,
-      "speaker_id": "6821"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1867/laugh/0023.wav",
-      "duration": 1.16,
-      "start_time": 25.64762299180422,
-      "speaker_id": "1867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048237.json b/conversations/conv_048237.json
deleted file mode 100644
index 790175565997ab4a2adb5658009a43df2f2d0999..0000000000000000000000000000000000000000
--- a/conversations/conv_048237.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.565796514354951,
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-      "start_frame": 0,
-      "duration_frames": 73052,
-      "overlap": false,
-      "utterance_id": "492-131887",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/492-131887.flac |",
-      "real_speaker_id": "492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.037887666460837,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 0
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-    {
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-      "utterance_id": "557-129796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/557-129796.flac |",
-      "real_speaker_id": "557",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129385.flac |",
-      "real_speaker_id": "127",
-      "position_frames": 85462
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.91781891746647,
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-      "utterance_id": "492-131890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/492-131890.flac |",
-      "real_speaker_id": "492",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "492"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048240.json b/conversations/conv_048240.json
deleted file mode 100644
index 86a467c23c8c251d943ea6144aaf4e11a2112647..0000000000000000000000000000000000000000
--- a/conversations/conv_048240.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6636-74078",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6636-74078.flac |",
-      "real_speaker_id": "6636",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
-      "real_speaker_id": "2843",
-      "position_frames": 0
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-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
-      "real_speaker_id": "2843",
-      "position_frames": 67379
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127704.flac |",
-      "real_speaker_id": "598",
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-    },
-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "2843",
-      "position_frames": 158031
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "598-127703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/598-127703.flac |",
-      "real_speaker_id": "598",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "duration": 1.192110587288088,
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-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
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-      "position_frames": 254003
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-    {
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-  "paralinguistic_events": [
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-      "duration": 0.96,
-      "start_time": 1.3452735734247379,
-      "speaker_id": "6636"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048256.json b/conversations/conv_048256.json
deleted file mode 100644
index 3bc88543540b7cb29056375228a210855ca765b6..0000000000000000000000000000000000000000
--- a/conversations/conv_048256.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.69033945080688,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.339458253370884,
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-      "utterance_id": "5269-26555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5269-26555.flac |",
-      "real_speaker_id": "5269",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.595245246032132,
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-      "utterance_id": "3180-138043",
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-      "real_speaker_id": "3180",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1311-134176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134176.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "1311-134176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134176.flac |",
-      "real_speaker_id": "1311",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "position_frames": 85431
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5269/laugh/0003.wav",
-      "duration": 0.96,
-      "start_time": 26.726527221402645,
-      "speaker_id": "5269"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048260.json b/conversations/conv_048260.json
deleted file mode 100644
index 6f7a56e7f9bc0f29c8bc65135d170f96353678ff..0000000000000000000000000000000000000000
--- a/conversations/conv_048260.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.689022076328667,
-      "duration": 4.689022076328667,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5588-68188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-68188.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.060438506125922,
-      "end_time": 10.457109946841516,
-      "duration": 5.396671440715593,
-      "start_frame": 80967,
-      "duration_frames": 86346,
-      "overlap": false,
-      "utterance_id": "3294-167609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167609.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.049306687781637,
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-      "duration_frames": 56177,
-      "overlap": false,
-      "utterance_id": "5588-39648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.028984946369434,
-      "end_time": 20.368601406620584,
-      "duration": 5.339616460251152,
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-      "duration_frames": 85433,
-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.748042527549018,
-      "end_time": 24.272226119630684,
-      "duration": 3.5241835920816653,
-      "start_frame": 331968,
-      "duration_frames": 56386,
-      "overlap": false,
-      "utterance_id": "3294-167609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3294-167609.flac |",
-      "real_speaker_id": "3294",
-      "position_frames": 86346
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.841629458188823,
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-      "duration": 5.147270103479432,
-      "start_frame": 397466,
-      "duration_frames": 82356,
-      "overlap": false,
-      "utterance_id": "5588-39648",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 56177
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.52423122681283,
-      "end_time": 32.0,
-      "duration": 1.4757687731871698,
-      "start_frame": 488387,
-      "duration_frames": 23612,
-      "overlap": false,
-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 85433
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 0.5595760726182883,
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-      "speaker_id": "5588"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3294/laugh/0006.wav",
-      "duration": 1.04,
-      "start_time": 3.831162460575218,
-      "speaker_id": "3294"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/960/cough/0053.wav",
-      "duration": 0.88,
-      "start_time": 30.97868429655258,
-      "speaker_id": "960"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048276.json b/conversations/conv_048276.json
deleted file mode 100644
index afb6178fe16382604cc85004ba69a963473595a2..0000000000000000000000000000000000000000
--- a/conversations/conv_048276.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.232914327015248,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2279-141140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2279-141140.flac |",
-      "real_speaker_id": "2279",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.4013729094116,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2279-141140.flac |",
-      "real_speaker_id": "2279",
-      "position_frames": 61466
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "8215-275211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8215-275211.flac |",
-      "real_speaker_id": "8215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.753068028433493,
-      "end_time": 23.31332965497976,
-      "duration": 6.56026162654627,
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-      "duration_frames": 104964,
-      "overlap": false,
-      "utterance_id": "2279-141140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2279-141140.flac |",
-      "real_speaker_id": "2279",
-      "position_frames": 156003
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.90371601721122,
-      "end_time": 29.65384144069154,
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-      "overlap": true,
-      "utterance_id": "8215-275203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8215-275203.flac |",
-      "real_speaker_id": "8215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.35028777693091,
-      "end_time": 31.232914327015248,
-      "duration": 0.8826265500843391,
-      "start_frame": 485604,
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-      "overlap": true,
-      "utterance_id": "8215-275203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8215-275203.flac |",
-      "real_speaker_id": "8215",
-      "position_frames": 108002
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2279/cough/0067.wav",
-      "duration": 0.530585480761802,
-      "start_time": 16.160744210921802,
-      "speaker_id": "2279"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048277.json b/conversations/conv_048277.json
deleted file mode 100644
index 21a3ea7d90f3bd2a7b61ceeb860c8a91edcc5985..0000000000000000000000000000000000000000
--- a/conversations/conv_048277.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1494-138315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
-      "real_speaker_id": "1494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "816",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7215-91630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7215-91630.flac |",
-      "real_speaker_id": "7215",
-      "position_frames": 0
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-    {
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-      "utterance_id": "816-53638",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.311056759502364,
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-      "duration_frames": 51369,
-      "overlap": false,
-      "utterance_id": "1494-138315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
-      "real_speaker_id": "1494",
-      "position_frames": 84929
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7215-91628",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/816/laugh/0001.wav",
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\ No newline at end of file
diff --git a/conversations/conv_048283.json b/conversations/conv_048283.json
deleted file mode 100644
index cef5740eb3360fd18c1e7182dd2aa217bbc04bcc..0000000000000000000000000000000000000000
--- a/conversations/conv_048283.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 84072,
-      "overlap": false,
-      "utterance_id": "1028-133395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133395.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.548750600757425,
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-      "real_speaker_id": "3063",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1028-133395",
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-    {
-      "segment_id": "seg0003",
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-  "background_events": [
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-      "speaker_id": "5985"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048295.json b/conversations/conv_048295.json
deleted file mode 100644
index cb53de17cb52f5159f02bf43530dc4db7ac73946..0000000000000000000000000000000000000000
--- a/conversations/conv_048295.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1559-139347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.9802250622625674,
-      "end_time": 12.162192072933301,
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-      "start_frame": 95683,
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-      "overlap": false,
-      "utterance_id": "3914-10088",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10088.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
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-      "utterance_id": "1559-139347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 88718
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.633921558182152,
-      "end_time": 24.899399203568233,
-      "duration": 5.265477645386082,
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-      "overlap": false,
-      "utterance_id": "3914-10089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.45800202288164,
-      "end_time": 28.688545654593984,
-      "duration": 3.230543631712344,
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-      "duration_frames": 51688,
-      "overlap": false,
-      "utterance_id": "1559-139347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 190451
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.25710407584176,
-      "end_time": 32.0,
-      "duration": 2.7428959241582405,
-      "start_frame": 468113,
-      "duration_frames": 43886,
-      "overlap": false,
-      "utterance_id": "3914-10089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3914-10089.flac |",
-      "real_speaker_id": "3914",
-      "position_frames": 84247
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
-      "duration": 1.7517687074829933,
-      "start_time": 25.34121412107097
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "speaker_id": "3914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048299.json b/conversations/conv_048299.json
deleted file mode 100644
index 7a8945d833d9caa2c198bc749beb4a34b94b4359..0000000000000000000000000000000000000000
--- a/conversations/conv_048299.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "362-123013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123013.flac |",
-      "real_speaker_id": "362",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "speaker_id": 0,
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-      "utterance_id": "362-123048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/362-123048.flac |",
-      "real_speaker_id": "362",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.94362953373403,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-98689.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.03947553136463,
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-      "utterance_id": "1569-141082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141082.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 98929
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.17769545497381,
-      "end_time": 32.0,
-      "duration": 2.8223045450261885,
-      "start_frame": 466843,
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-      "overlap": false,
-      "utterance_id": "5831-87174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5831-87174.flac |",
-      "real_speaker_id": "5831",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79633.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/362/laugh/0107.wav",
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-      "speaker_id": "362"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 13.758658549367011,
-      "speaker_id": "362"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5831/cough/0095.wav",
-      "duration": 0.3522857029044775,
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-    {
-      "event_class": "laugh",
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-      "duration": 0.859947836129288,
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-      "speaker_id": "5831"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048305.json b/conversations/conv_048305.json
deleted file mode 100644
index 243a951f75aa2bd83ce076c4f12405b90b599844..0000000000000000000000000000000000000000
--- a/conversations/conv_048305.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "464-126794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
-      "real_speaker_id": "464",
-      "position_frames": 61399
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5868-55088.flac |",
-      "real_speaker_id": "5868",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5868-55088.flac |",
-      "real_speaker_id": "5868",
-      "position_frames": 101648
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7525-101265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7525-101265.flac |",
-      "real_speaker_id": "7525",
-      "position_frames": 72341
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-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/464/laugh/0026.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "464"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5868/laugh/0092.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.04,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "7525"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048309.json b/conversations/conv_048309.json
deleted file mode 100644
index 628cf2f6d652a2b9aca053fc58a7069eb6e3c328..0000000000000000000000000000000000000000
--- a/conversations/conv_048309.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3083-7943.flac |",
-      "real_speaker_id": "3083",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126651.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "3083",
-      "position_frames": 108641
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.379847157853526,
-      "end_time": 32.0,
-      "duration": 2.6201528421464744,
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-      "utterance_id": "4492-8907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8907.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_5.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3083/laugh/0036.wav",
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-      "duration": 1.2687131579498228,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/153/laugh/0014.wav",
-      "duration": 1.4,
-      "start_time": 11.90836498625156,
-      "speaker_id": "153"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/153/cough/0055.wav",
-      "duration": 0.6254031348186837,
-      "start_time": 11.99410703399745,
-      "speaker_id": "153"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048313.json b/conversations/conv_048313.json
deleted file mode 100644
index 6f9f1de5697af59b92f6ea73d833c9fc74d72de7..0000000000000000000000000000000000000000
--- a/conversations/conv_048313.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.727889628798544,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5929-57805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.679620740027557,
-      "end_time": 10.23133947547392,
-      "duration": 5.551718735446363,
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-      "overlap": true,
-      "utterance_id": "5929-48603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
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-      "position_frames": 0
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-      "utterance_id": "7584-101856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7584-101856.flac |",
-      "real_speaker_id": "7584",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.341557183336775,
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-      "utterance_id": "5929-48603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 88827
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.72877235360463,
-      "end_time": 28.92797080692838,
-      "duration": 6.199198453323748,
-      "start_frame": 363660,
-      "duration_frames": 99187,
-      "overlap": false,
-      "utterance_id": "7584-266228",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7584-266228.flac |",
-      "real_speaker_id": "7584",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.04185710992519,
-      "end_time": 32.0,
-      "duration": 2.958142890074811,
-      "start_frame": 464669,
-      "duration_frames": 47330,
-      "overlap": false,
-      "utterance_id": "5929-57805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 75646
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-    {
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048318.json b/conversations/conv_048318.json
deleted file mode 100644
index c56100112fcfb643e564ed249a30b75b5763e6f8..0000000000000000000000000000000000000000
--- a/conversations/conv_048318.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "957-130588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.285198903735413,
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-      "utterance_id": "957-132568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.635159359277985,
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-      "utterance_id": "7732-107520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107520.flac |",
-      "real_speaker_id": "7732",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "4222-187005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-187005.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration_frames": 77664,
-      "overlap": false,
-      "utterance_id": "957-132537",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132537.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.367432729540685,
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-      "start_frame": 405878,
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-      "overlap": false,
-      "utterance_id": "4222-12898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-12898.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.639165995403726,
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-      "duration": 2.360834004596274,
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-      "utterance_id": "7732-107517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/957/cough/0075.wav",
-      "duration": 1.079980611921289,
-      "start_time": 0,
-      "speaker_id": "957"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/957/cough/0055.wav",
-      "duration": 1.302179413771556,
-      "start_time": 8.64602638789907,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4222/laugh/0025.wav",
-      "duration": 0.6313878180326291,
-      "start_time": 28.766806937343016,
-      "speaker_id": "4222"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048325.json b/conversations/conv_048325.json
deleted file mode 100644
index ac1359d6708b98cbac5308475ad8e4decf12d54d..0000000000000000000000000000000000000000
--- a/conversations/conv_048325.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.060050507689436,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.237635612924809,
-      "duration": 4.237635612924809,
-      "start_frame": 0,
-      "duration_frames": 67802,
-      "overlap": false,
-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.41005938160609,
-      "end_time": 9.421790820092824,
-      "duration": 5.011731438486732,
-      "start_frame": 70560,
-      "duration_frames": 80187,
-      "overlap": false,
-      "utterance_id": "2588-11081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-11081.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.184111166830768,
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-      "start_frame": 162945,
-      "duration_frames": 68049,
-      "overlap": false,
-      "utterance_id": "2979-156237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156237.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.352888283819366,
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-      "duration": 4.3555932508795605,
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-      "duration_frames": 69689,
-      "overlap": false,
-      "utterance_id": "2588-11081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-11081.flac |",
-      "real_speaker_id": "2588",
-      "position_frames": 80187
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.314013811106207,
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-      "duration": 3.4736455633465417,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156237.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 68049
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.185656185784886,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 67802
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.683055790541168,
-      "end_time": 31.060050507689436,
-      "duration": 1.3769947171482677,
-      "start_frame": 474928,
-      "duration_frames": 22031,
-      "overlap": true,
-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 162308
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "duration": 1.1,
-      "start_time": 3.304976605643724,
-      "speaker_id": "2588"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2979/laugh/0054.wav",
-      "duration": 1.16,
-      "start_time": 12.888887594214479,
-      "speaker_id": "2979"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2979/laugh/0071.wav",
-      "duration": 1.08,
-      "start_time": 20.910159471470074,
-      "speaker_id": "2979"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/laugh/0072.wav",
-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "5970"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048329.json b/conversations/conv_048329.json
deleted file mode 100644
index 7bb70e9707e90aa54de5ef1afe5d61a5cddaac84..0000000000000000000000000000000000000000
--- a/conversations/conv_048329.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.022815703566926,
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-      "overlap": false,
-      "utterance_id": "3053-148990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.225865060268705,
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-      "utterance_id": "7433-89656",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3053-148990.flac |",
-      "real_speaker_id": "3053",
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-      "segment_id": "seg0005",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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\ No newline at end of file
diff --git a/conversations/conv_048333.json b/conversations/conv_048333.json
deleted file mode 100644
index 5a0fc4acaab016b542101e58fff3d8d0505a81f3..0000000000000000000000000000000000000000
--- a/conversations/conv_048333.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.512284699209637,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4901.flac |",
-      "real_speaker_id": "2967",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 6.27467832333056,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6609-111351.flac |",
-      "real_speaker_id": "6609",
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_048344.json b/conversations/conv_048344.json
deleted file mode 100644
index 58467b8c1f5370cd8697547d90d02ba799890e40..0000000000000000000000000000000000000000
--- a/conversations/conv_048344.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12545.flac |",
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_048348.json b/conversations/conv_048348.json
deleted file mode 100644
index 65c66289dec5967ac43b1c99b10c8f53b04ef36e..0000000000000000000000000000000000000000
--- a/conversations/conv_048348.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "duration": 0.3068415389913429,
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-      "speaker_id": "7609"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5049/cough/0117.wav",
-      "duration": 1.1993867203663797,
-      "start_time": 30.36727098325526,
-      "speaker_id": "5049"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3526/laugh/0092.wav",
-      "duration": 1.3,
-      "start_time": 30.7,
-      "speaker_id": "3526"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048352.json b/conversations/conv_048352.json
deleted file mode 100644
index aa185bbc891df12c18c0bc71f1b97734d239d481..0000000000000000000000000000000000000000
--- a/conversations/conv_048352.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.436863669206066,
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-      "overlap": false,
-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.571962073883222,
-      "end_time": 11.061130242698685,
-      "duration": 4.489168168815461,
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-      "utterance_id": "8324-286682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286682.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 86989
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-      "speaker_id": 1,
-      "start_time": 15.831672414026151,
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-      "utterance_id": "8324-286683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286683.flac |",
-      "real_speaker_id": "8324",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "1614-167305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-167305.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.40337178727411,
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-      "overlap": false,
-      "utterance_id": "2146-136610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 135967
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.58982637350742,
-      "end_time": 32.0,
-      "duration": 0.41017362649257905,
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-      "overlap": false,
-      "utterance_id": "1614-13785",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-13785.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
-      "duration": 1.1467383016003088,
-      "start_time": 14.058637022716999
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.8792858952029152,
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8324/laugh/0024.wav",
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-      "start_time": 5.356375528351341,
-      "speaker_id": "8324"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8324/laugh/0104.wav",
-      "duration": 0.96,
-      "start_time": 14.790465080241855,
-      "speaker_id": "8324"
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-    {
-      "event_class": "cough",
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-      "start_time": 31.414949852368327,
-      "speaker_id": "1614"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048359.json b/conversations/conv_048359.json
deleted file mode 100644
index ec8e50215c3e6554344b932ae00db4a0e8184242..0000000000000000000000000000000000000000
--- a/conversations/conv_048359.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7315-104382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7315-104382.flac |",
-      "real_speaker_id": "7315",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "7315-86809",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7315-86809.flac |",
-      "real_speaker_id": "7315",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.974863823142236,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 62064
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.19891163016121,
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-      "utterance_id": "7315-104382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7315-104382.flac |",
-      "real_speaker_id": "7315",
-      "position_frames": 54848
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 67063,
-      "overlap": false,
-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 149707
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.41704652577855,
-      "end_time": 32.0,
-      "duration": 0.5829534742214513,
-      "start_frame": 502672,
-      "duration_frames": 9327,
-      "overlap": false,
-      "utterance_id": "7315-86809",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7315-86809.flac |",
-      "real_speaker_id": "7315",
-      "position_frames": 100186
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7315/laugh/0073.wav",
-      "duration": 1.18,
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-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 21.48023705780831,
-      "speaker_id": "2570"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2570/laugh/0010.wav",
-      "duration": 1.4437246483049555,
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-    {
-      "event_class": "cough",
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-      "start_time": 31.136163673075533,
-      "speaker_id": "7315"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048364.json b/conversations/conv_048364.json
deleted file mode 100644
index 2177cf66192bc6a73bb346d590a654669e8f50a3..0000000000000000000000000000000000000000
--- a/conversations/conv_048364.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8713-296159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-296159.flac |",
-      "real_speaker_id": "8713",
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-      "real_speaker_id": "7683",
-      "position_frames": 0
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-      "utterance_id": "2673-162129",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2673-162129.flac |",
-      "real_speaker_id": "2673",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.14418645205658,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-302111.flac |",
-      "real_speaker_id": "8713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.5701235847463,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7683-103530.flac |",
-      "real_speaker_id": "7683",
-      "position_frames": 65254
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "2673",
-      "position_frames": 96892
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "2673"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048365.json b/conversations/conv_048365.json
deleted file mode 100644
index 305432111d9a2fbb8b8d6a8a61b034a0e3fde344..0000000000000000000000000000000000000000
--- a/conversations/conv_048365.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "real_speaker_id": "9000",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86039.flac |",
-      "real_speaker_id": "2758",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "duration": 0.8735750419006236,
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-      "speaker_id": "9000"
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048368.json b/conversations/conv_048368.json
deleted file mode 100644
index da575745a2bff4696c98149015b8fcb6b1c7ae7e..0000000000000000000000000000000000000000
--- a/conversations/conv_048368.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.5498367567524,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1290-135762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
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-      "position_frames": 0
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-      "start_time": 12.123012335741965,
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-      "utterance_id": "1290-135762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1290-135762.flac |",
-      "real_speaker_id": "1290",
-      "position_frames": 72826
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-    {
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-      "speaker_id": 1,
-      "start_time": 19.011361174320836,
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-      "duration": 3.544410630777583,
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-      "overlap": true,
-      "utterance_id": "8163-274549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8163-274549.flac |",
-      "real_speaker_id": "8163",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "real_speaker_id": "1290",
-      "position_frames": 167844
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4305-15448.flac |",
-      "real_speaker_id": "4305",
-      "position_frames": 91428
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-      "event_class": "Blender",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_048372.json b/conversations/conv_048372.json
deleted file mode 100644
index cce27d147e72c6af97103f9bd436e0059ae0d8d3..0000000000000000000000000000000000000000
--- a/conversations/conv_048372.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2270-3547.flac |",
-      "real_speaker_id": "2270",
-      "position_frames": 0
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-    {
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
-      "real_speaker_id": "2517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.00209428504611,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24788.flac |",
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-      "event_class": "cough",
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-      "speaker_id": "3227"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048375.json b/conversations/conv_048375.json
deleted file mode 100644
index 93ce907cb1aa31cda69de92ef4d170406ae3940c..0000000000000000000000000000000000000000
--- a/conversations/conv_048375.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.38810760702749,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "2652-157644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
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-      "utterance_id": "5682-32875",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32875.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.190399594080592,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 109573
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.508662223396094,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 79350
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 174171
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_048387.json b/conversations/conv_048387.json
deleted file mode 100644
index f01bd8305d77d07c1827a4e2127780be7048267b..0000000000000000000000000000000000000000
--- a/conversations/conv_048387.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "5583-41259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41259.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4278-13270",
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-      "real_speaker_id": "4278",
-      "position_frames": 0
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-      "real_speaker_id": "4278",
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-      "segment_id": "seg0005",
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-      "utterance_id": "5583-41919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41919.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.581978965410762,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4278-13270.flac |",
-      "real_speaker_id": "4278",
-      "position_frames": 100165
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4278/laugh/0031.wav",
-      "duration": 1.28,
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-      "speaker_id": "4278"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4278/laugh/0016.wav",
-      "duration": 1.36,
-      "start_time": 27.319764963020297,
-      "speaker_id": "4278"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4278/cough/0035.wav",
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-      "start_time": 25.635677936314025,
-      "speaker_id": "4278"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5583/laugh/0084.wav",
-      "duration": 0.5553416628042382,
-      "start_time": 30.74607637796805,
-      "speaker_id": "5583"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4278/cough/0091.wav",
-      "duration": 0.4520142428518623,
-      "start_time": 31.020202611997494,
-      "speaker_id": "4278"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048391.json b/conversations/conv_048391.json
deleted file mode 100644
index 6708beb5487319c0d1179aec2b67a21ba313e0d5..0000000000000000000000000000000000000000
--- a/conversations/conv_048391.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.9677368609729537,
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-      "overlap": false,
-      "utterance_id": "365-126320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126320.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.116588600218855,
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-      "duration": 3.099502362082113,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126320.flac |",
-      "real_speaker_id": "365",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2712-3534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3534.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.244089620785473,
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-      "utterance_id": "365-126320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126320.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 113075
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.33858734632945,
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-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 21.440311183985372,
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-      "utterance_id": "2712-3532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3532.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 25.87505120078867,
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-      "utterance_id": "365-84333",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84333.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 0,
-      "start_time": 30.861522782043053,
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-      "duration": 1.1384772179569467,
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-      "duration_frames": 18215,
-      "overlap": false,
-      "utterance_id": "2712-3536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
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-  "foreground_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/365/laugh/0043.wav",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2712/laugh/0113.wav",
-      "duration": 0.8163899559748227,
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-      "speaker_id": "2712"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048407.json b/conversations/conv_048407.json
deleted file mode 100644
index f3469cd8544b66fa2d3c7b3e21615d12ba6f956a..0000000000000000000000000000000000000000
--- a/conversations/conv_048407.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.54091201270284,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5060-15562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": false,
-      "utterance_id": "2042-134780",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-134780.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "5060-15563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15563.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.596077399304246,
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-      "utterance_id": "7597-101859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7597-101859.flac |",
-      "real_speaker_id": "7597",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.334644802564302,
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-      "duration_frames": 78239,
-      "overlap": true,
-      "utterance_id": "2042-136442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-136442.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 70979,
-      "overlap": false,
-      "utterance_id": "5060-15562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 81979
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5060/laugh/0026.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-      "duration": 1.209435305353438,
-      "start_time": 22.530478323063832,
-      "speaker_id": "2042"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
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-      "speaker_id": "5060"
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-    {
-      "event_class": "cough",
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-      "duration": 0.6389962139628905,
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-      "speaker_id": "5060"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048411.json b/conversations/conv_048411.json
deleted file mode 100644
index f4f0f7d80217f16a6c26f4de72a8f90c69f2b24a..0000000000000000000000000000000000000000
--- a/conversations/conv_048411.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6818-68772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.427273579404898,
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-      "real_speaker_id": "6849",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6818-76332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-76332.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.47155126372012,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
-      "real_speaker_id": "6818",
-      "position_frames": 108518
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_048420.json b/conversations/conv_048420.json
deleted file mode 100644
index bd5d1a221a7ae1c31ee90ab982cfee4ed1acbc81..0000000000000000000000000000000000000000
--- a/conversations/conv_048420.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160953.flac |",
-      "real_speaker_id": "2823",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160953.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160953.flac |",
-      "real_speaker_id": "2823",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_048427.json b/conversations/conv_048427.json
deleted file mode 100644
index 5b4024088fa0eba9e6ef4717990a77a9eef59d55..0000000000000000000000000000000000000000
--- a/conversations/conv_048427.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "1463",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_048431.json b/conversations/conv_048431.json
deleted file mode 100644
index a3ec13b45b66a15a586e32532902c66ef1cd61fb..0000000000000000000000000000000000000000
--- a/conversations/conv_048431.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_048436.json b/conversations/conv_048436.json
deleted file mode 100644
index c9a7e8ebe72aa68ea7c75e6d1c0eacb9ff0050bd..0000000000000000000000000000000000000000
--- a/conversations/conv_048436.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-14564.flac |",
-      "real_speaker_id": "4396",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1053-289242.flac |",
-      "real_speaker_id": "1053",
-      "position_frames": 53930
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-    {
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-      "speaker_id": "4396"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048446.json b/conversations/conv_048446.json
deleted file mode 100644
index 9802fe0ea6603e0625a42e665b03ff38c2ad933c..0000000000000000000000000000000000000000
--- a/conversations/conv_048446.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.53899058190964,
-  "num_speakers": 3,
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-      "utterance_id": "8080-3961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-3961.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 0
-    },
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-      "start_time": 6.679960802330419,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.279864623212028,
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-      "overlap": false,
-      "utterance_id": "8080-274558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-274558.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.107972570429183,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 64209
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.90627892104342,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-3961.flac |",
-      "real_speaker_id": "8080",
-      "position_frames": 100836
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7416-103126",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7416-103126.flac |",
-      "real_speaker_id": "7416",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 2.8217955946086053,
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_048450.json b/conversations/conv_048450.json
deleted file mode 100644
index 863159b6acc7c56d81d28ae31a3a6523ca1ccb6c..0000000000000000000000000000000000000000
--- a/conversations/conv_048450.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.240598805179612,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
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-      "overlap": true,
-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 85618
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 177856
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 93506
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.24,
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048461.json b/conversations/conv_048461.json
deleted file mode 100644
index c190371d18ae36d62c74e0cae5fe83d4cc1138dd..0000000000000000000000000000000000000000
--- a/conversations/conv_048461.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.25,
-  "segments": [
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-      "utterance_id": "5375-40170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40170.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40169.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 14.067631895623308,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40170.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 57845
-    },
-    {
-      "segment_id": "seg0004",
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-      "duration_frames": 49347,
-      "overlap": true,
-      "utterance_id": "1649-5776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1649-5776.flac |",
-      "real_speaker_id": "1649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 21.82551487953382,
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-      "utterance_id": "5375-40169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40169.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 73254
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "segment_id": "seg0007",
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-    {
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-    {
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048466.json b/conversations/conv_048466.json
deleted file mode 100644
index 745dd60698387d38a511920b973d0b976a181e07..0000000000000000000000000000000000000000
--- a/conversations/conv_048466.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "5299-34546",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5299-34546.flac |",
-      "real_speaker_id": "5299",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 158194
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048470.json b/conversations/conv_048470.json
deleted file mode 100644
index bcfa682900a7faf2b561fdd4f16ac46e11c0d009..0000000000000000000000000000000000000000
--- a/conversations/conv_048470.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123268.flac |",
-      "real_speaker_id": "882",
-      "position_frames": 0
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-      "real_speaker_id": "3135",
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-      "utterance_id": "882-123266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123266.flac |",
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-      "position_frames": 64534
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_048477.json b/conversations/conv_048477.json
deleted file mode 100644
index 2fb553e34a76dceeae5df3a791792e1f55cf9b0d..0000000000000000000000000000000000000000
--- a/conversations/conv_048477.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_048485.json b/conversations/conv_048485.json
deleted file mode 100644
index 71de93565c858ddd02e5e2526ae72f6e592c2d52..0000000000000000000000000000000000000000
--- a/conversations/conv_048485.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "speaker_id": "4116"
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-      "duration": 1.32,
-      "start_time": 11.268195336473006,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "7389"
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-      "event_class": "laugh",
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-      "duration": 0.5241815605951485,
-      "start_time": 31.443450431715334,
-      "speaker_id": "684"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048489.json b/conversations/conv_048489.json
deleted file mode 100644
index 5d909d86106cfb28f78be09c218c89297e83c21c..0000000000000000000000000000000000000000
--- a/conversations/conv_048489.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.48995536089702,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.830886103278591,
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-      "overlap": false,
-      "utterance_id": "7117-86710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86710.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.019796116706952,
-      "end_time": 12.51485879851916,
-      "duration": 6.495062681812209,
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-      "utterance_id": "2208-10076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.695241913780619,
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-      "utterance_id": "7117-86732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86732.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-11020.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7117-86710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86710.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 77294
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.767916437632138,
-      "end_time": 31.48995536089702,
-      "duration": 1.7220389232648827,
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-      "duration_frames": 27552,
-      "overlap": true,
-      "utterance_id": "2208-10076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2208-10076.flac |",
-      "real_speaker_id": "2208",
-      "position_frames": 103921
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_0.wav",
-      "duration": 1.7548299319727891,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2208/laugh/0078.wav",
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-      "start_time": 22.793286757510906,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7117/laugh/0013.wav",
-      "duration": 1.290926204700831,
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-      "duration": 0.9543005715921711,
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-      "speaker_id": "2208"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048493.json b/conversations/conv_048493.json
deleted file mode 100644
index 238b618fbd0e388048237778800e97ef1b404d60..0000000000000000000000000000000000000000
--- a/conversations/conv_048493.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3819-134146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134146.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.009697197976738,
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-      "utterance_id": "6492-68353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68353.flac |",
-      "real_speaker_id": "6492",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134145.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.81441040128096,
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-      "utterance_id": "6492-68369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68369.flac |",
-      "real_speaker_id": "6492",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.236288096209996,
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-      "utterance_id": "3819-134145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134145.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 54039
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.508611606977126,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6492-68353.flac |",
-      "real_speaker_id": "6492",
-      "position_frames": 49354
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.903291435999044,
-      "end_time": 32.0,
-      "duration": 4.096708564000956,
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-      "utterance_id": "3819-134145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3819-134145.flac |",
-      "real_speaker_id": "3819",
-      "position_frames": 104398
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "3819"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048498.json b/conversations/conv_048498.json
deleted file mode 100644
index db8af8a74632779841b44f92d03208c2a874a624..0000000000000000000000000000000000000000
--- a/conversations/conv_048498.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/147-125737.flac |",
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-    {
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 19.68707417306392,
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-      "real_speaker_id": "2496",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2496-156089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156089.flac |",
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-      "position_frames": 106419
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048503.json b/conversations/conv_048503.json
deleted file mode 100644
index cf43b2d884c1d3094c09cb55630df11a59167ff3..0000000000000000000000000000000000000000
--- a/conversations/conv_048503.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6120-14976.flac |",
-      "real_speaker_id": "6120",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
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-      "duration": 1.08,
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-}
\ No newline at end of file
diff --git a/conversations/conv_048515.json b/conversations/conv_048515.json
deleted file mode 100644
index 8ecf8c4a06dde4ec5d36cea5f0cd05451cc06ccd..0000000000000000000000000000000000000000
--- a/conversations/conv_048515.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.540253378143387,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-57477.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
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-      "utterance_id": "5636-41792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41792.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "6641-64718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6641-64718.flac |",
-      "real_speaker_id": "6641",
-      "position_frames": 98802
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-      "speaker_id": 0,
-      "start_time": 22.684560683481195,
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-      "overlap": false,
-      "utterance_id": "5636-57477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-57477.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 53945
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "3962-722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3962-722.flac |",
-      "real_speaker_id": "3962",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_048519.json b/conversations/conv_048519.json
deleted file mode 100644
index 19ecfa93f66bac21d1a89b069eb7662c08136753..0000000000000000000000000000000000000000
--- a/conversations/conv_048519.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4122-11963.flac |",
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-      "real_speaker_id": "4122",
-      "position_frames": 100384
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048523.json b/conversations/conv_048523.json
deleted file mode 100644
index 8ac3c7d030c696b405dc286fcaf8d18429495457..0000000000000000000000000000000000000000
--- a/conversations/conv_048523.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.160278587533085,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "duration_frames": 61025,
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-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "8028-233366",
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "1182",
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 35174,
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-      "utterance_id": "1182-133396",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_048524.json b/conversations/conv_048524.json
deleted file mode 100644
index b97f435c944009ed28f6b2168a7a8172dd992010..0000000000000000000000000000000000000000
--- a/conversations/conv_048524.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.11457035270412,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "17-362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5123-34572.flac |",
-      "real_speaker_id": "5123",
-      "position_frames": 64735
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "17-362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 139498
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.0514474724846856,
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-      "event_class": "Cat",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7786/laugh/0093.wav",
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-      "speaker_id": "7786"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5123/laugh/0048.wav",
-      "duration": 1.78,
-      "start_time": 15.596921958405563,
-      "speaker_id": "5123"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/17/laugh/0090.wav",
-      "duration": 0.9170337823853374,
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-      "duration": 1.36,
-      "start_time": 24.260092697037976,
-      "speaker_id": "17"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048532.json b/conversations/conv_048532.json
deleted file mode 100644
index 7a4b06850e167d700a7d3063c47951c3c34d6f50..0000000000000000000000000000000000000000
--- a/conversations/conv_048532.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1750-142369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-142369.flac |",
-      "real_speaker_id": "1750",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.0405592874530605,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-135624.flac |",
-      "real_speaker_id": "1750",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 10.95755831622763,
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-      "utterance_id": "6925-80680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "6518-66464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66464.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1750-135624.flac |",
-      "real_speaker_id": "1750",
-      "position_frames": 88254
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-      "segment_id": "seg0005",
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-      "utterance_id": "6518-66464",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66464.flac |",
-      "real_speaker_id": "6518",
-      "position_frames": 72525
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048535.json b/conversations/conv_048535.json
deleted file mode 100644
index e6c425bf235345e6e75a248bebc69054cd9e95a7..0000000000000000000000000000000000000000
--- a/conversations/conv_048535.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-112594.flac |",
-      "real_speaker_id": "7737",
-      "position_frames": 0
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-      "real_speaker_id": "1258",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7737-114039.flac |",
-      "real_speaker_id": "7737",
-      "position_frames": 0
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-      "real_speaker_id": "1258",
-      "position_frames": 75959
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-    {
-      "segment_id": "seg0006",
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-      "utterance_id": "7737-114039",
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-      "position_frames": 56243
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "speaker_id": "1258"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048539.json b/conversations/conv_048539.json
deleted file mode 100644
index d4e764dd6590e5c801a3e059adf242288433739b..0000000000000000000000000000000000000000
--- a/conversations/conv_048539.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1401-146770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1401-146770.flac |",
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-    {
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-    {
-      "segment_id": "seg0003",
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-    {
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "speaker_id": "1401"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.5554855709444477,
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-      "speaker_id": "8643"
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-      "duration": 0.94,
-      "start_time": 29.866472314730498,
-      "speaker_id": "8643"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048542.json b/conversations/conv_048542.json
deleted file mode 100644
index 8c5d64269e7572323539af77d29a5f6be1e53043..0000000000000000000000000000000000000000
--- a/conversations/conv_048542.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "311-124404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.72529801707175,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/311-124404.flac |",
-      "real_speaker_id": "311",
-      "position_frames": 56530
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.46136956626245,
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-      "duration": 4.9807897891861606,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 111126
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.87876487355274,
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-      "utterance_id": "969-134362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/969-134362.flac |",
-      "real_speaker_id": "969",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.628687314436927,
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-      "utterance_id": "1714-142291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1714-142291.flac |",
-      "real_speaker_id": "1714",
-      "position_frames": 190818
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
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-      "speaker_id": "1714"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_048554.json b/conversations/conv_048554.json
deleted file mode 100644
index 74247b1127421048b40de4f29d32bac599cbb42c..0000000000000000000000000000000000000000
--- a/conversations/conv_048554.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.594834365699082,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6865-95963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95963.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95963.flac |",
-      "real_speaker_id": "6865",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 62342
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 124641
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95969.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048558.json b/conversations/conv_048558.json
deleted file mode 100644
index fd911a360162a7d0db3facdf781c58d7deaacf59..0000000000000000000000000000000000000000
--- a/conversations/conv_048558.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/405-130894.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/405-130895.flac |",
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-      "segment_id": "seg0003",
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-      "position_frames": 105053
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 43773,
-      "overlap": false,
-      "utterance_id": "2910-131096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2910-131096.flac |",
-      "real_speaker_id": "2910",
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_048559.json b/conversations/conv_048559.json
deleted file mode 100644
index 8341c4297f646b91856eaa787f897ce4e2c24c22..0000000000000000000000000000000000000000
--- a/conversations/conv_048559.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "153-126652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/153-126652.flac |",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4152-12926.flac |",
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-      "event_class": "cough",
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-      "start_time": 3.6476848308385734,
-      "speaker_id": "60"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4152/laugh/0026.wav",
-      "duration": 0.6015556943413433,
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-      "speaker_id": "4152"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/153/cough/0115.wav",
-      "duration": 1.3664866253960775,
-      "start_time": 26.16458765544866,
-      "speaker_id": "153"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048562.json b/conversations/conv_048562.json
deleted file mode 100644
index 130a19de92df787b18f8cc14666477e46649e9cf..0000000000000000000000000000000000000000
--- a/conversations/conv_048562.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.68237149211631,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.781619481194089,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95963.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95969.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5620-40469.flac |",
-      "real_speaker_id": "5620",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.203324804044083,
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-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 101907
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.953793955544967,
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-      "utterance_id": "6865-95963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95963.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 66451
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "6865"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048565.json b/conversations/conv_048565.json
deleted file mode 100644
index aa5844cd89abc2ba2f562289849c569f218e8e10..0000000000000000000000000000000000000000
--- a/conversations/conv_048565.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.813753924473488,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-17347.flac |",
-      "real_speaker_id": "4710",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4710-17347.flac |",
-      "real_speaker_id": "4710",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-9937.flac |",
-      "real_speaker_id": "4313",
-      "position_frames": 89886
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4313-16007.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_048573.json b/conversations/conv_048573.json
deleted file mode 100644
index f756cf2e3b136fd2db190979bcbdb390fb720783..0000000000000000000000000000000000000000
--- a/conversations/conv_048573.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4487-1799.flac |",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-131411.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "1261",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_048574.json b/conversations/conv_048574.json
deleted file mode 100644
index 6a503a98090eb6fec73003f7ea620f1b056f4b06..0000000000000000000000000000000000000000
--- a/conversations/conv_048574.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-      "event_class": "cough",
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-      "duration": 0.3496838893016715,
-      "start_time": 23.15368579879872,
-      "speaker_id": "104"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048578.json b/conversations/conv_048578.json
deleted file mode 100644
index 7a123b0ec389547f00c1fb4a5f1b3e084c6b1bd2..0000000000000000000000000000000000000000
--- a/conversations/conv_048578.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.165840825421217,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.057686387438118,
-      "duration": 5.057686387438118,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "834-130871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130871.flac |",
-      "real_speaker_id": "834",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.5311349261881455,
-      "end_time": 10.418592193286653,
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-      "utterance_id": "1769-143484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143484.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130871.flac |",
-      "real_speaker_id": "834",
-      "position_frames": 80922
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.747828672525003,
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-      "utterance_id": "7713-106733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106733.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.262285671733324,
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-      "utterance_id": "1769-143484",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1769-143484.flac |",
-      "real_speaker_id": "1769",
-      "position_frames": 78199
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.03402716865337,
-      "end_time": 31.165840825421217,
-      "duration": 2.1318136567678465,
-      "start_frame": 464544,
-      "duration_frames": 34109,
-      "overlap": true,
-      "utterance_id": "834-130871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130871.flac |",
-      "real_speaker_id": "834",
-      "position_frames": 176644
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-      "event_class": "laugh",
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-    {
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-      "speaker_id": "834"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048581.json b/conversations/conv_048581.json
deleted file mode 100644
index 509f2d07faa456ca663a5b9fe144f4e35f958d4c..0000000000000000000000000000000000000000
--- a/conversations/conv_048581.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5837-39905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5837-39905.flac |",
-      "real_speaker_id": "5837",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-26553.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.128620120926797,
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-      "utterance_id": "1743-142914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142914.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 105333
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 71210,
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-      "utterance_id": "4967-3586",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4967-3586.flac |",
-      "real_speaker_id": "4967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.304666836703195,
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-      "speaker_id": "4967"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048597.json b/conversations/conv_048597.json
deleted file mode 100644
index 15293cdf4a062512d8c93ab1b444fd7bc7f36d4d..0000000000000000000000000000000000000000
--- a/conversations/conv_048597.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132751.flac |",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31625.flac |",
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-    {
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048606.json b/conversations/conv_048606.json
deleted file mode 100644
index fa87cbfbc8f5dfbae3cfe5cf8e5957a6f095ba5c..0000000000000000000000000000000000000000
--- a/conversations/conv_048606.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5199-18509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-18509.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8262-279161.flac |",
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
-      "duration": 13.333968313852209,
-      "start_time": 9.327046980084548
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_5.wav",
-      "duration": 0.3202721088435374,
-      "start_time": 1.2198983165124926
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/978/cough/0073.wav",
-      "duration": 1.2,
-      "start_time": 16.17205988078817,
-      "speaker_id": "978"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048610.json b/conversations/conv_048610.json
deleted file mode 100644
index 90cbc529b55941dfd474b6c3cfc18f26ca7ecabd..0000000000000000000000000000000000000000
--- a/conversations/conv_048610.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.082837509467891,
-      "duration": 5.082837509467891,
-      "start_frame": 0,
-      "duration_frames": 81325,
-      "overlap": false,
-      "utterance_id": "8152-282985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-282985.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.307086943367748,
-      "end_time": 10.9096404823024,
-      "duration": 5.602553538934652,
-      "start_frame": 84913,
-      "duration_frames": 89640,
-      "overlap": false,
-      "utterance_id": "9022-282383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282383.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.286156320757684,
-      "end_time": 16.48817169935124,
-      "duration": 5.202015378593556,
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-      "duration_frames": 83232,
-      "overlap": false,
-      "utterance_id": "3054-128245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128245.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.079595487187948,
-      "end_time": 21.37806000951844,
-      "duration": 4.298464522330492,
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-      "overlap": false,
-      "utterance_id": "8152-258974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-258974.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.11696517794833,
-      "end_time": 28.825369707070468,
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-      "overlap": false,
-      "utterance_id": "3054-128242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.274231578914502,
-      "end_time": 32.0,
-      "duration": 2.7257684210854976,
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-      "overlap": false,
-      "utterance_id": "8152-258974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8152-258974.flac |",
-      "real_speaker_id": "8152",
-      "position_frames": 68775
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
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-      "duration": 0.84,
-      "start_time": 0.7084224432960535,
-      "speaker_id": "8152"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/9022/cough/0100.wav",
-      "duration": 1.32,
-      "start_time": 8.930686428386233,
-      "speaker_id": "9022"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3054/laugh/0078.wav",
-      "duration": 1.24,
-      "start_time": 20.76021644293968,
-      "speaker_id": "3054"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048626.json b/conversations/conv_048626.json
deleted file mode 100644
index 3426700fff22ede12ca5e3285f6ca012b0748516..0000000000000000000000000000000000000000
--- a/conversations/conv_048626.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "94-3794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3794.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.66391168907708,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123720.flac |",
-      "real_speaker_id": "481",
-      "position_frames": 0
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-      "utterance_id": "94-3792",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3792.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.883845687507126,
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-      "overlap": true,
-      "utterance_id": "5054-18527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-18527.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.01368782854714,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3795.flac |",
-      "real_speaker_id": "94",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.397971626087706,
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-      "utterance_id": "5054-1187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-1187.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048630.json b/conversations/conv_048630.json
deleted file mode 100644
index 50721150e338fa918a661b5025a08f58e4450956..0000000000000000000000000000000000000000
--- a/conversations/conv_048630.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88749.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-105653.flac |",
-      "real_speaker_id": "7492",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7800-283493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283493.flac |",
-      "real_speaker_id": "7800",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88743.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.038523523794076,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7492-105653.flac |",
-      "real_speaker_id": "7492",
-      "position_frames": 64272
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.56504206895894,
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-      "utterance_id": "7143-88743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88743.flac |",
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-  "background_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_048647.json b/conversations/conv_048647.json
deleted file mode 100644
index 8a59d233409bc3986878de19adde2b89a30a3dec..0000000000000000000000000000000000000000
--- a/conversations/conv_048647.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4926-23281",
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-      "real_speaker_id": "4926",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "speaker_id": "4926"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048651.json b/conversations/conv_048651.json
deleted file mode 100644
index e1b54770d30710aaba50b2b459aa36f7d9c4ef70..0000000000000000000000000000000000000000
--- a/conversations/conv_048651.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7228-98227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98227.flac |",
-      "real_speaker_id": "7228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.205330531532065,
-      "end_time": 12.812514665450847,
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-      "utterance_id": "3032-19361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 13.024280228511534,
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-      "overlap": false,
-      "utterance_id": "7228-98238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98238.flac |",
-      "real_speaker_id": "7228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.406407950902526,
-      "end_time": 21.3421365477331,
-      "duration": 3.935728596830576,
-      "start_frame": 278502,
-      "duration_frames": 62971,
-      "overlap": false,
-      "utterance_id": "3032-19361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3032-19361.flac |",
-      "real_speaker_id": "3032",
-      "position_frames": 105714
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.68924799145819,
-      "end_time": 29.606824303445073,
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-      "duration_frames": 110681,
-      "overlap": false,
-      "utterance_id": "7228-98227",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98227.flac |",
-      "real_speaker_id": "7228",
-      "position_frames": 91596
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.275337655123465,
-      "end_time": 32.0,
-      "duration": 1.7246623448765348,
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-      "duration_frames": 27594,
-      "overlap": false,
-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9775065966089,
-      "start_time": 12.862064335871429,
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-    {
-      "event_class": "cough",
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-      "duration": 1.0271564157502502,
-      "start_time": 11.966920774601668,
-      "speaker_id": "7228"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.8020103317225958,
-      "start_time": 29.18585718692322,
-      "speaker_id": "2046"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048660.json b/conversations/conv_048660.json
deleted file mode 100644
index a6b3bff9a25e479ffebbb6ee193174e9e8a2c1bf..0000000000000000000000000000000000000000
--- a/conversations/conv_048660.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "5190-87766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87766.flac |",
-      "real_speaker_id": "5190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.820329304877872,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "5190-87791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87791.flac |",
-      "real_speaker_id": "5190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.378081377147204,
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-      "duration_frames": 55300,
-      "overlap": false,
-      "utterance_id": "797-127182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.244682608796563,
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-      "utterance_id": "5190-87766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87766.flac |",
-      "real_speaker_id": "5190",
-      "position_frames": 88377
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.717231873498882,
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-      "utterance_id": "2724-89874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2724-89874.flac |",
-      "real_speaker_id": "2724",
-      "position_frames": 70656
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-      "speaker_id": "2724"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048667.json b/conversations/conv_048667.json
deleted file mode 100644
index d4b5464029b806311a9313ff82dabdc62916d534..0000000000000000000000000000000000000000
--- a/conversations/conv_048667.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "5700-51758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51758.flac |",
-      "real_speaker_id": "5700",
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-      "speaker_id": 2,
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-      "utterance_id": "1311-134170",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_048670.json b/conversations/conv_048670.json
deleted file mode 100644
index a4c53fc86e64876e005bdd95d88ae38407ffa2a7..0000000000000000000000000000000000000000
--- a/conversations/conv_048670.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1323-138548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-138548.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "duration": 1.16,
-      "start_time": 12.765255164124957,
-      "speaker_id": "5132"
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-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 20.24148501768308,
-      "speaker_id": "1867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048671.json b/conversations/conv_048671.json
deleted file mode 100644
index 61490d244fcad6960e6228e09dfb45fc4edcda27..0000000000000000000000000000000000000000
--- a/conversations/conv_048671.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5009-29143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.434400445987877,
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-      "utterance_id": "2301-157880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157880.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "5009-29143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 98957
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.170837493610144,
-      "end_time": 20.13758091667388,
-      "duration": 3.966743423063736,
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-      "overlap": false,
-      "utterance_id": "7218-80699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-80699.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.167020493534928,
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-      "utterance_id": "2301-157471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157471.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.543052450595574,
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-      "utterance_id": "2301-157471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157471.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 97750
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048684.json b/conversations/conv_048684.json
deleted file mode 100644
index 138612a8f03fe9079582d58475c5a2b9ac7dd738..0000000000000000000000000000000000000000
--- a/conversations/conv_048684.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
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-      "real_speaker_id": "5665",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5665-38051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5665-38051.flac |",
-      "real_speaker_id": "5665",
-      "position_frames": 93249
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 233464
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_048688.json b/conversations/conv_048688.json
deleted file mode 100644
index 2da64ab21e52c55148ab3b1cf2fe7032e8b06d6d..0000000000000000000000000000000000000000
--- a/conversations/conv_048688.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-111618.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "7733-106800",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048692.json b/conversations/conv_048692.json
deleted file mode 100644
index 40a7f4b7e670b7b803226bdf9894e1bd7fa7ad7b..0000000000000000000000000000000000000000
--- a/conversations/conv_048692.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "8705-290361",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290361.flac |",
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-      "speaker_id": "1200"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1200/cough/0050.wav",
-      "duration": 0.6644633568888805,
-      "start_time": 23.997961429403485,
-      "speaker_id": "1200"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8705/laugh/0049.wav",
-      "duration": 0.6933159457777219,
-      "start_time": 31.306684054222277,
-      "speaker_id": "8705"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048702.json b/conversations/conv_048702.json
deleted file mode 100644
index 4ec990320f9c728a55c6b69597b993c8d45b3fd1..0000000000000000000000000000000000000000
--- a/conversations/conv_048702.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.986118951659393,
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-      "utterance_id": "6131-229040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.818592422504395,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43302.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.22472381077079,
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-      "overlap": true,
-      "utterance_id": "5678-43303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43303.flac |",
-      "real_speaker_id": "5678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.959838443275824,
-      "end_time": 24.504899385279167,
-      "duration": 6.545060942003344,
-      "start_frame": 287357,
-      "duration_frames": 104720,
-      "overlap": false,
-      "utterance_id": "6131-57188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-57188.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.274341902172992,
-      "end_time": 30.839043955919408,
-      "duration": 5.564702053746415,
-      "start_frame": 404389,
-      "duration_frames": 89035,
-      "overlap": false,
-      "utterance_id": "7242-275146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275146.flac |",
-      "real_speaker_id": "7242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.65053196694635,
-      "end_time": 32.0,
-      "duration": 0.3494680330536504,
-      "start_frame": 506408,
-      "duration_frames": 5591,
-      "overlap": false,
-      "utterance_id": "6131-229040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 95777
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
-      "duration": 2.2395691609977324,
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6131/laugh/0080.wav",
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-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 30.263578388383095,
-      "speaker_id": "6131"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048709.json b/conversations/conv_048709.json
deleted file mode 100644
index d70213db2893bbb3ea421655420255a1c040871d..0000000000000000000000000000000000000000
--- a/conversations/conv_048709.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.963278629295576,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.732173328909621,
-      "start_frame": 0,
-      "duration_frames": 59714,
-      "overlap": false,
-      "utterance_id": "6544-67863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6544-67863.flac |",
-      "real_speaker_id": "6544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7859-102518.flac |",
-      "real_speaker_id": "7859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.489734813262244,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6544-71420.flac |",
-      "real_speaker_id": "6544",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.450410061433374,
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-      "duration_frames": 59813,
-      "overlap": false,
-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 69969
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.56532534630929,
-      "end_time": 31.963278629295576,
-      "duration": 5.397953282986286,
-      "start_frame": 425045,
-      "duration_frames": 86367,
-      "overlap": false,
-      "utterance_id": "6544-71420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6544-71420.flac |",
-      "real_speaker_id": "6544",
-      "position_frames": 107578
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7859/cough/0098.wav",
-      "duration": 1.24,
-      "start_time": 15.131747720448825,
-      "speaker_id": "7859"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6544/laugh/0110.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1987/laugh/0081.wav",
-      "duration": 1.44,
-      "start_time": 20.813172780281455,
-      "speaker_id": "1987"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048714.json b/conversations/conv_048714.json
deleted file mode 100644
index 4cdc0758d0c08e75f07a0e43b6d890b81ec36f69..0000000000000000000000000000000000000000
--- a/conversations/conv_048714.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.808636229150103,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6030-57826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57826.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.743559205795638,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
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-      "position_frames": 0
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-      "utterance_id": "6030-70988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-70988.flac |",
-      "real_speaker_id": "6030",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.926508782594103,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156155.flac |",
-      "real_speaker_id": "2499",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0004",
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-      "position_frames": 71309
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.261298296364775,
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-      "start_frame": 420180,
-      "duration_frames": 88757,
-      "overlap": false,
-      "utterance_id": "6030-57826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6030-57826.flac |",
-      "real_speaker_id": "6030",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
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-      "event_class": "cough",
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-      "start_time": 23.127695337716098,
-      "speaker_id": "5049"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048718.json b/conversations/conv_048718.json
deleted file mode 100644
index b470223c686ea040407b776676c667b88ce05298..0000000000000000000000000000000000000000
--- a/conversations/conv_048718.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6003-58761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6003-58761.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_048722.json b/conversations/conv_048722.json
deleted file mode 100644
index 714bfae9b529b3abee14d9d5053b8ba0c144a604..0000000000000000000000000000000000000000
--- a/conversations/conv_048722.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8666-293943.flac |",
-      "real_speaker_id": "8666",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "5810-8674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8674.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.95795861646091,
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-      "utterance_id": "8666-293945",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.3236144622892,
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-      "utterance_id": "5810-8674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8674.flac |",
-      "real_speaker_id": "5810",
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7301-92166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7301-92166.flac |",
-      "real_speaker_id": "7301",
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\ No newline at end of file
diff --git a/conversations/conv_048725.json b/conversations/conv_048725.json
deleted file mode 100644
index 6e6ff20656958f36a315e8fa256a2965ca68a0c5..0000000000000000000000000000000000000000
--- a/conversations/conv_048725.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-103120.flac |",
-      "real_speaker_id": "7789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
-      "real_speaker_id": "6359",
-      "position_frames": 82329
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
-      "real_speaker_id": "6308",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-258266.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_048734.json b/conversations/conv_048734.json
deleted file mode 100644
index 95969809a91406076d922454243d6d2adebcd2e3..0000000000000000000000000000000000000000
--- a/conversations/conv_048734.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.33795624160672,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-290368.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 67195
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "7708-293973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7708-293973.flac |",
-      "real_speaker_id": "7708",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "real_speaker_id": "8058",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5506-69895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69895.flac |",
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-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_048735.json b/conversations/conv_048735.json
deleted file mode 100644
index 843f6e57608635ad0896fc47f10bc4a57a5b4ae1..0000000000000000000000000000000000000000
--- a/conversations/conv_048735.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "2688",
-      "position_frames": 111255
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5489-10988.flac |",
-      "real_speaker_id": "5489",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "5489"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048738.json b/conversations/conv_048738.json
deleted file mode 100644
index b8479b17e7d3cbd691a5a4e59e0e98872312d457..0000000000000000000000000000000000000000
--- a/conversations/conv_048738.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121665.flac |",
-      "real_speaker_id": "289",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41166.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.211536822321953,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41166.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 49800
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.323469372107695,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/289-121665.flac |",
-      "real_speaker_id": "289",
-      "position_frames": 80798
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5637-41170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41170.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_048743.json b/conversations/conv_048743.json
deleted file mode 100644
index 5dd989637583085b477e1e5c3f86751659653894..0000000000000000000000000000000000000000
--- a/conversations/conv_048743.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "409",
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-      "speaker_id": 0,
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-      "real_speaker_id": "6902",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "6902",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048748.json b/conversations/conv_048748.json
deleted file mode 100644
index bda425bbe995d3999297bdda467fc14f4117e865..0000000000000000000000000000000000000000
--- a/conversations/conv_048748.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-11599.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_048755.json b/conversations/conv_048755.json
deleted file mode 100644
index 607786490ff9c6850806f7c6950cb955589b18ae..0000000000000000000000000000000000000000
--- a/conversations/conv_048755.json
+++ /dev/null
@@ -1,95 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1784-142294.flac |",
-      "real_speaker_id": "1784",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.428778635494185,
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-      "real_speaker_id": "7939",
-      "position_frames": 0
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-    {
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-    {
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-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
-      "duration": 18.039591767227183,
-      "start_time": 7.778115177573133
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
-      "start_time": 17.798075403082567
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_048759.json b/conversations/conv_048759.json
deleted file mode 100644
index 4540e8c2930bf0b6d22eec1ed38dccaf996b04aa..0000000000000000000000000000000000000000
--- a/conversations/conv_048759.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.676389012452852,
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-      "overlap": false,
-      "utterance_id": "2262-141714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141714.flac |",
-      "real_speaker_id": "2262",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.9115608094424674,
-      "end_time": 9.885074418485509,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141716.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2262-141717.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
-      "real_speaker_id": "2925",
-      "position_frames": 95576
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3109-165420.flac |",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_2.wav",
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-      "duration": 1.24,
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-      "speaker_id": "3109"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048763.json b/conversations/conv_048763.json
deleted file mode 100644
index d6da29e27d697047316be5d91b38d9478f5f9602..0000000000000000000000000000000000000000
--- a/conversations/conv_048763.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6625-60547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6625-60547.flac |",
-      "real_speaker_id": "6625",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048775.json b/conversations/conv_048775.json
deleted file mode 100644
index c4b0498784c647336f3cb552d87ef8b55ed07ba2..0000000000000000000000000000000000000000
--- a/conversations/conv_048775.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
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-}
\ No newline at end of file
diff --git a/conversations/conv_048779.json b/conversations/conv_048779.json
deleted file mode 100644
index c209a3e88be0bafbdc1cc7b2bc681892d8c5ab11..0000000000000000000000000000000000000000
--- a/conversations/conv_048779.json
+++ /dev/null
@@ -1,101 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.926332938874914,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.55208651428746,
-      "duration": 6.55208651428746,
-      "start_frame": 0,
-      "duration_frames": 104833,
-      "overlap": false,
-      "utterance_id": "4915-245690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.538053795103919,
-      "end_time": 13.999551715364618,
-      "duration": 6.4614979202606975,
-      "start_frame": 120608,
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-      "overlap": false,
-      "utterance_id": "4965-27767",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27767.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.959407375824709,
-      "end_time": 20.77093825435201,
-      "duration": 5.811530878527301,
-      "start_frame": 239350,
-      "duration_frames": 92984,
-      "overlap": false,
-      "utterance_id": "4915-245690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 104833
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.275081520819537,
-      "end_time": 26.198362182194312,
-      "duration": 4.9232806613747755,
-      "start_frame": 340401,
-      "duration_frames": 78772,
-      "overlap": false,
-      "utterance_id": "7867-110528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110528.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.772586597048836,
-      "end_time": 31.926332938874914,
-      "duration": 5.153746341826079,
-      "start_frame": 428361,
-      "duration_frames": 82459,
-      "overlap": false,
-      "utterance_id": "4965-27768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27768.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
-      "duration": 17.37816326530612,
-      "start_time": 1.6379777573752614
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
-      "duration": 1.4072562965167839,
-      "start_time": 4.104813618985202
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
-      "duration": 2.411609977324263,
-      "start_time": 16.94136769537587
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_048780.json b/conversations/conv_048780.json
deleted file mode 100644
index 396027c228de06797799705d2121df6cf3d7a05c..0000000000000000000000000000000000000000
--- a/conversations/conv_048780.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.438377070860206,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "111-126265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-126265.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.318505349272799,
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-      "duration": 6.5389398218507555,
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-      "utterance_id": "111-129000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/111-129000.flac |",
-      "real_speaker_id": "111",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.881847573154497,
-      "end_time": 20.74064679602652,
-      "duration": 6.858799222872023,
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-      "utterance_id": "3172-166439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
-      "real_speaker_id": "3172",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.425393640173976,
-      "end_time": 25.52951904088686,
-      "duration": 5.104125400712886,
-      "start_frame": 326806,
-      "duration_frames": 81666,
-      "overlap": true,
-      "utterance_id": "4629-19366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.304928043162654,
-      "end_time": 30.438377070860206,
-      "duration": 3.1334490276975497,
-      "start_frame": 436878,
-      "duration_frames": 50135,
-      "overlap": false,
-      "utterance_id": "3172-166439",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3172-166439.flac |",
-      "real_speaker_id": "3172",
-      "position_frames": 109740
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/111/laugh/0081.wav",
-      "duration": 0.92,
-      "start_time": 13.09827055006369,
-      "speaker_id": "111"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3172/laugh/0125.wav",
-      "duration": 0.6986043626924444,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3172/cough/0096.wav",
-      "duration": 0.30774962351785523,
-      "start_time": 13.532595981449955,
-      "speaker_id": "3172"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048796.json b/conversations/conv_048796.json
deleted file mode 100644
index 871e14683a6d8abd30d3345cb36d1430b0c5911b..0000000000000000000000000000000000000000
--- a/conversations/conv_048796.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1274-121771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121771.flac |",
-      "real_speaker_id": "1274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 0
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-      "duration_frames": 53567,
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-      "utterance_id": "1274-121771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121771.flac |",
-      "real_speaker_id": "1274",
-      "position_frames": 77952
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.309643393755412,
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-      "duration_frames": 60173,
-      "overlap": false,
-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 87731
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.321284909027597,
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-      "utterance_id": "1274-121771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121771.flac |",
-      "real_speaker_id": "1274",
-      "position_frames": 131519
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2774-131722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2774-131722.flac |",
-      "real_speaker_id": "2774",
-      "position_frames": 147904
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-      "start_time": 14.096253748397022,
-      "speaker_id": "2774"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048807.json b/conversations/conv_048807.json
deleted file mode 100644
index 2ce9634e3bc98981c5d622c9eba1675e26182660..0000000000000000000000000000000000000000
--- a/conversations/conv_048807.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1311-134170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134170.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "5636",
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-      "utterance_id": "1311-134176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134176.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "position_frames": 48963
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_048811.json b/conversations/conv_048811.json
deleted file mode 100644
index fd11d43847d337e399255a3be0585af86d8bce26..0000000000000000000000000000000000000000
--- a/conversations/conv_048811.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
-      "real_speaker_id": "2002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6099-69550.flac |",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6555-398.flac |",
-      "real_speaker_id": "6555",
-      "position_frames": 77428
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_4.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048820.json b/conversations/conv_048820.json
deleted file mode 100644
index 6cde3ce630bf9e94c579ca02c7caa4f58f57c6de..0000000000000000000000000000000000000000
--- a/conversations/conv_048820.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "960-125241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/960-125241.flac |",
-      "real_speaker_id": "960",
-      "position_frames": 90390
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.56368489610709,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-126663.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "5929-48603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.892982510025686,
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-      "start_frame": 478287,
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-      "utterance_id": "366-126663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-126663.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 110667
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048827.json b/conversations/conv_048827.json
deleted file mode 100644
index 4a2866113f3dbaa8c69913de4a0d6d2898f8efaa..0000000000000000000000000000000000000000
--- a/conversations/conv_048827.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1390-130494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1390-130494.flac |",
-      "real_speaker_id": "1390",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1100-124547.flac |",
-      "real_speaker_id": "1100",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "1390-130493",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1390-130493.flac |",
-      "real_speaker_id": "1390",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "272",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_048831.json b/conversations/conv_048831.json
deleted file mode 100644
index b1babac3f947a9f17e858fc0f090ef7a85df56b8..0000000000000000000000000000000000000000
--- a/conversations/conv_048831.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8580-287363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287363.flac |",
-      "real_speaker_id": "8580",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2624-88360.flac |",
-      "real_speaker_id": "2624",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "start_time": 30.96,
-      "speaker_id": "2624"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048836.json b/conversations/conv_048836.json
deleted file mode 100644
index 110a67450c89b53e9274cbab57704eed466778d2..0000000000000000000000000000000000000000
--- a/conversations/conv_048836.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.204327222472617,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-131548.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96153.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
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-      "start_time": 10.149302844065176,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
-      "real_speaker_id": "7874",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.97529807619984,
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-      "utterance_id": "937-132849",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-132849.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.17252497090206,
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-      "utterance_id": "7437-117899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-117899.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.65082389192002,
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-      "utterance_id": "937-131548",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/937-131548.flac |",
-      "real_speaker_id": "937",
-      "position_frames": 93059
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
-      "duration": 3.475002881302305,
-      "start_time": 21.798017775020504
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7874/cough/0035.wav",
-      "duration": 0.925120096538093,
-      "start_time": 15.701011423481606,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/937/laugh/0095.wav",
-      "duration": 0.6442599199396105,
-      "start_time": 18.40330681971756,
-      "speaker_id": "937"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048846.json b/conversations/conv_048846.json
deleted file mode 100644
index f474282548e32e1de0e7b155f45025ef0335e026..0000000000000000000000000000000000000000
--- a/conversations/conv_048846.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.074533916936623,
-      "duration": 6.074533916936623,
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-      "duration_frames": 97192,
-      "overlap": false,
-      "utterance_id": "8419-293473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-293473.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.505620166491258,
-      "end_time": 11.301097849323352,
-      "duration": 4.795477682832093,
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-      "duration_frames": 76727,
-      "overlap": false,
-      "utterance_id": "4160-11549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11549.flac |",
-      "real_speaker_id": "4160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.574818545352754,
-      "end_time": 16.753424941757732,
-      "duration": 5.178606396404978,
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-      "overlap": false,
-      "utterance_id": "8419-286667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-286667.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.653920375958243,
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-      "duration": 3.954117624227057,
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-      "overlap": false,
-      "utterance_id": "6072-54656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6072-54656.flac |",
-      "real_speaker_id": "6072",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.10817692679094,
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-      "utterance_id": "8419-293469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-293469.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.393083699455822,
-      "end_time": 32.0,
-      "duration": 3.606916300544178,
-      "start_frame": 454289,
-      "duration_frames": 57710,
-      "overlap": false,
-      "utterance_id": "6072-54656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6072-54656.flac |",
-      "real_speaker_id": "6072",
-      "position_frames": 63265
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 26.887610876327283,
-      "speaker_id": "6072"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048850.json b/conversations/conv_048850.json
deleted file mode 100644
index f842ab3bf67be3dedd4dbec5693110ebc70c07ff..0000000000000000000000000000000000000000
--- a/conversations/conv_048850.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.19904517771858,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1553-140048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140048.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.216499560642919,
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-      "segment_id": "seg0002",
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-      "utterance_id": "1553-140048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140048.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 89723
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.872020515264655,
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-      "utterance_id": "569-126489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/569-126489.flac |",
-      "real_speaker_id": "569",
-      "position_frames": 59875
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.263037425768296,
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-      "utterance_id": "1553-140047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1553-140047.flac |",
-      "real_speaker_id": "1553",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "569",
-      "position_frames": 113150
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1553"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048861.json b/conversations/conv_048861.json
deleted file mode 100644
index ffc4a8a4e533330af6f50904d34950af5c3f1b9c..0000000000000000000000000000000000000000
--- a/conversations/conv_048861.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1804-170447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-170447.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 8.028026215965719,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129583.flac |",
-      "real_speaker_id": "716",
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-    },
-    {
-      "segment_id": "seg0002",
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "utterance_id": "716-129582",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048866.json b/conversations/conv_048866.json
deleted file mode 100644
index 3fe25159800dfa45d4613ac847556a5cd6f2bc5c..0000000000000000000000000000000000000000
--- a/conversations/conv_048866.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 96644,
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-      "utterance_id": "6426-64292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64292.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.0523440710488705,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64291.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "77",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "248",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "77",
-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 4.490843133531556,
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-      "duration": 0.84,
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "77"
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048870.json b/conversations/conv_048870.json
deleted file mode 100644
index dfdf31fd35734f22bf70df539a6257cb5201264b..0000000000000000000000000000000000000000
--- a/conversations/conv_048870.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.303571962230993,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "6724-73990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73990.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.021635381450329,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.898814321506848,
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-      "overlap": false,
-      "utterance_id": "806-123715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.971029096450174,
-      "end_time": 24.92894597173117,
-      "duration": 5.957916875280998,
-      "start_frame": 303536,
-      "duration_frames": 95326,
-      "overlap": false,
-      "utterance_id": "6724-73991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73991.flac |",
-      "real_speaker_id": "6724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.271580751201785,
-      "end_time": 31.303571962230993,
-      "duration": 6.031991211029208,
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-      "utterance_id": "806-123715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 87871
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_048871.json b/conversations/conv_048871.json
deleted file mode 100644
index 18d51267779aa0a02f08a32ae3d5457c76d2d005..0000000000000000000000000000000000000000
--- a/conversations/conv_048871.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7839-109872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109872.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109872.flac |",
-      "real_speaker_id": "7839",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-141425.flac |",
-      "real_speaker_id": "474",
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-      "real_speaker_id": "4598",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.191536590559863,
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-      "duration": 5.808463409440137,
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-      "overlap": false,
-      "utterance_id": "474-134809",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-134809.flac |",
-      "real_speaker_id": "474",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Frying",
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-      "start_time": 4.181157996226002,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.22,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/474/laugh/0072.wav",
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-      "speaker_id": "474"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048877.json b/conversations/conv_048877.json
deleted file mode 100644
index 034860e01b38bdf900264a7143e4f67fdc57e7fb..0000000000000000000000000000000000000000
--- a/conversations/conv_048877.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2026-22756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.588562832274113,
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-      "utterance_id": "803-139743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/803-139743.flac |",
-      "real_speaker_id": "803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.736375756108245,
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-      "start_frame": 171782,
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-      "overlap": false,
-      "utterance_id": "2026-22756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 79180
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.305715073982082,
-      "end_time": 18.484455321520176,
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-      "duration_frames": 50859,
-      "overlap": false,
-      "utterance_id": "803-139752",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/803-139752.flac |",
-      "real_speaker_id": "803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "797-127183",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 91374,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/803-139752.flac |",
-      "real_speaker_id": "803",
-      "position_frames": 50859
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.877374624684307,
-      "end_time": 32.0,
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-      "duration_frames": 17962,
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-      "utterance_id": "797-127182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-    {
-      "event_class": "Dog",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/797/cough/0003.wav",
-      "duration": 0.8045755860200414,
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-    {
-      "event_class": "cough",
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-      "start_time": 29.63254820410065,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048885.json b/conversations/conv_048885.json
deleted file mode 100644
index ac606df02bdc9e4079cafcbd82ac5308a9641883..0000000000000000000000000000000000000000
--- a/conversations/conv_048885.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8199-284020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8199-284020.flac |",
-      "real_speaker_id": "8199",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "4687",
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-      "segment_id": "seg0005",
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-      "start_time": 29.181650960260207,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048889.json b/conversations/conv_048889.json
deleted file mode 100644
index c1180f614bb2c4b84a7eb1884bbee6775f3c3a53..0000000000000000000000000000000000000000
--- a/conversations/conv_048889.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.516222560631224,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77740.flac |",
-      "real_speaker_id": "6798",
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-      "segment_id": "seg0002",
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-      "utterance_id": "2925-162505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
-      "real_speaker_id": "2925",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
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-      "utterance_id": "2925-162505",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2925-162505.flac |",
-      "real_speaker_id": "2925",
-      "position_frames": 87530
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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\ No newline at end of file
diff --git a/conversations/conv_048893.json b/conversations/conv_048893.json
deleted file mode 100644
index f600ccd375dfe16891bda8c2abf45e15a7cb7c58..0000000000000000000000000000000000000000
--- a/conversations/conv_048893.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/481-123720.flac |",
-      "real_speaker_id": "481",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_048898.json b/conversations/conv_048898.json
deleted file mode 100644
index 1984129fdef4a766c3782aa758bf5fef86afa0f6..0000000000000000000000000000000000000000
--- a/conversations/conv_048898.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "5723-43306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-43306.flac |",
-      "real_speaker_id": "5723",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-43296.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 73626
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-      "real_speaker_id": "5723",
-      "position_frames": 78006
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_048903.json b/conversations/conv_048903.json
deleted file mode 100644
index 1fed980236345e27daf6d3a22cab21b0496da5ca..0000000000000000000000000000000000000000
--- a/conversations/conv_048903.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
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-  "foreground_events": [
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-      "speaker_id": "1040"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048915.json b/conversations/conv_048915.json
deleted file mode 100644
index 3914ed0d74cd2b73174c33bf31a51a4a3724b7fd..0000000000000000000000000000000000000000
--- a/conversations/conv_048915.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4738-58078.flac |",
-      "real_speaker_id": "4738",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5092-28465.flac |",
-      "real_speaker_id": "5092",
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-      "real_speaker_id": "5092",
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048918.json b/conversations/conv_048918.json
deleted file mode 100644
index 4040044cbad10735f94f6625d13f83bac053202a..0000000000000000000000000000000000000000
--- a/conversations/conv_048918.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-366.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1188.flac |",
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "731",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5039-1189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5039-1189.flac |",
-      "real_speaker_id": "5039",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Cat",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "start_time": 28.72193795940249,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048919.json b/conversations/conv_048919.json
deleted file mode 100644
index 86d8a532bd4b4a8f9ec0e679ac9c9b580e280e46..0000000000000000000000000000000000000000
--- a/conversations/conv_048919.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1509-145742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1509-145742.flac |",
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/389755.wav",
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-      "start_time": 11.431746697166037
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "start_time": 30.30065716910215,
-      "speaker_id": "2256"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048923.json b/conversations/conv_048923.json
deleted file mode 100644
index 372e593c5594f544c22e44505c2862d7e74dc05d..0000000000000000000000000000000000000000
--- a/conversations/conv_048923.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.576215368153306,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 2,
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-      "end_time": 3.841178468975693,
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-      "overlap": false,
-      "utterance_id": "3546-9342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-9342.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.756201506408663,
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-      "overlap": false,
-      "utterance_id": "8028-233366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.660898373301716,
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-      "overlap": false,
-      "utterance_id": "5724-13364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.843463224291586,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.210118856234267,
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-      "duration": 4.765470141915582,
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-      "overlap": false,
-      "utterance_id": "5724-13364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5724-13364.flac |",
-      "real_speaker_id": "5724",
-      "position_frames": 49187
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 79940,
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-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 92553
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.907653802002613,
-      "end_time": 31.576215368153306,
-      "duration": 0.668561566150693,
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-      "duration_frames": 10696,
-      "overlap": true,
-      "utterance_id": "3546-175390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 26.607777777777777,
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_10.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5724/cough/0010.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 24.97749326322614,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8028/laugh/0065.wav",
-      "duration": 0.7784281146857004,
-      "start_time": 24.65703065946311,
-      "speaker_id": "8028"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048924.json b/conversations/conv_048924.json
deleted file mode 100644
index 23f0ee4a3ee388140490430dadefa1e4c96acbd1..0000000000000000000000000000000000000000
--- a/conversations/conv_048924.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8250-286289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-286289.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.757653660338807,
-      "end_time": 11.126320351834726,
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-      "overlap": false,
-      "utterance_id": "1028-133395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133395.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 0
-    },
-    {
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-      "overlap": false,
-      "utterance_id": "8250-279777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-279777.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.40709709944159,
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-      "utterance_id": "1028-133395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1028-133395.flac |",
-      "real_speaker_id": "1028",
-      "position_frames": 85898
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.770664557860364,
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-      "utterance_id": "8250-279777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-279777.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 65606
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.61725422669467,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "3923-153309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3923-153309.flac |",
-      "real_speaker_id": "3923",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "start_time": 10.61742848836326,
-      "speaker_id": "8250"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1028/laugh/0069.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1028/cough/0047.wav",
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-      "start_time": 16.690808987013465,
-      "speaker_id": "1028"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8250/laugh/0082.wav",
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-    {
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-      "speaker_id": "8250"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048932.json b/conversations/conv_048932.json
deleted file mode 100644
index d3e525a3557c67c1334d5f2f389e6270e5d826b9..0000000000000000000000000000000000000000
--- a/conversations/conv_048932.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.26997127155142,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2093-143262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143262.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.22062358088831,
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-      "utterance_id": "8565-290393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290393.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2093-143271",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143271.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.47951661148017,
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-      "utterance_id": "8565-290398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290398.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.757488670393087,
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-      "real_speaker_id": "2093",
-      "position_frames": 85928
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.774817099584354,
-      "end_time": 31.26997127155142,
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-      "duration_frames": 87922,
-      "overlap": false,
-      "utterance_id": "2487-169011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2487-169011.flac |",
-      "real_speaker_id": "2487",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 0.84,
-      "start_time": 8.957184875527801,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8565/laugh/0022.wav",
-      "duration": 1.14,
-      "start_time": 14.169129315836575,
-      "speaker_id": "8565"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2487/laugh/0006.wav",
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-      "start_time": 28.288638613665576,
-      "speaker_id": "2487"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_048934.json b/conversations/conv_048934.json
deleted file mode 100644
index f700f1a48cd03dfcc248e7dd6e565773294dfaf5..0000000000000000000000000000000000000000
--- a/conversations/conv_048934.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "548-126959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126959.flac |",
-      "real_speaker_id": "548",
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-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/548-126961.flac |",
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-      "position_frames": 87367
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048935.json b/conversations/conv_048935.json
deleted file mode 100644
index f977891607da6a3a09f10eeef0569f6002c4057f..0000000000000000000000000000000000000000
--- a/conversations/conv_048935.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3157-168062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-168062.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.279788751921423,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3157-68361.flac |",
-      "real_speaker_id": "3157",
-      "position_frames": 86831
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_048939.json b/conversations/conv_048939.json
deleted file mode 100644
index 49ffc0079992f8362e053ebbed0b23534ac415a2..0000000000000000000000000000000000000000
--- a/conversations/conv_048939.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "position_frames": 0
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-      "real_speaker_id": "7055",
-      "position_frames": 97821
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048942.json b/conversations/conv_048942.json
deleted file mode 100644
index 201e0f8f6590825f08ef41ec3033e07e53414a6c..0000000000000000000000000000000000000000
--- a/conversations/conv_048942.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "start_time": 30.428202291854127,
-      "speaker_id": "1469"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_048954.json b/conversations/conv_048954.json
deleted file mode 100644
index 42b4d6e0ec8bed96241ec20af4d16ff4d0f2bdcf..0000000000000000000000000000000000000000
--- a/conversations/conv_048954.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
-      "real_speaker_id": "4699",
-      "position_frames": 0
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-      "real_speaker_id": "6923",
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-      "utterance_id": "6923-82334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82334.flac |",
-      "real_speaker_id": "6923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.624343808442845,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7000-83696.flac |",
-      "real_speaker_id": "7000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.318592661961013,
-      "end_time": 31.054467046114254,
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-      "overlap": false,
-      "utterance_id": "6923-82334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82334.flac |",
-      "real_speaker_id": "6923",
-      "position_frames": 106107
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 0.3262564844854232,
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-      "utterance_id": "6923-82337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82337.flac |",
-      "real_speaker_id": "6923",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "speaker_id": "7000"
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-}
\ No newline at end of file
diff --git a/conversations/conv_048958.json b/conversations/conv_048958.json
deleted file mode 100644
index c2bfb2c1f1af91985b67345915e83ade9c72b110..0000000000000000000000000000000000000000
--- a/conversations/conv_048958.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3374-298026.flac |",
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-      "real_speaker_id": "1784",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125272.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.196423055865274,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3374-298026.flac |",
-      "real_speaker_id": "3374",
-      "position_frames": 107004
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1784-142294.flac |",
-      "real_speaker_id": "1784",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_0.wav",
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\ No newline at end of file
diff --git a/conversations/conv_048962.json b/conversations/conv_048962.json
deleted file mode 100644
index 7e1af1d573f15afac64caee6431d34eb54b39952..0000000000000000000000000000000000000000
--- a/conversations/conv_048962.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-715.flac |",
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-      "real_speaker_id": "8080",
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-      "speaker_id": 0,
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-      "real_speaker_id": "8080",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-274558.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_048965.json b/conversations/conv_048965.json
deleted file mode 100644
index f89fac6bbe8376cf7c7c338686738e655ab9adcf..0000000000000000000000000000000000000000
--- a/conversations/conv_048965.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-37999.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0007",
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\ No newline at end of file
diff --git a/conversations/conv_048973.json b/conversations/conv_048973.json
deleted file mode 100644
index 9104d7dfb91580dca888fa076107f12afbe5cf56..0000000000000000000000000000000000000000
--- a/conversations/conv_048973.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-56640.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/810-130096.flac |",
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-      "real_speaker_id": "6399",
-      "position_frames": 75055
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\ No newline at end of file
diff --git a/conversations/conv_048974.json b/conversations/conv_048974.json
deleted file mode 100644
index 398bc0ac45bd5b8c6590873652f0075014644268..0000000000000000000000000000000000000000
--- a/conversations/conv_048974.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_048978.json b/conversations/conv_048978.json
deleted file mode 100644
index f3e124037a3713a3450961ba3450b7e60af9805c..0000000000000000000000000000000000000000
--- a/conversations/conv_048978.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-36632.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_048981.json b/conversations/conv_048981.json
deleted file mode 100644
index 88222a1a9bdf94e7fad11a3f619b7e4be466a1c3..0000000000000000000000000000000000000000
--- a/conversations/conv_048981.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4356-6498.flac |",
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-    {
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-      "real_speaker_id": "4356",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "event_class": "laugh",
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-      "speaker_id": "543"
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\ No newline at end of file
diff --git a/conversations/conv_048997.json b/conversations/conv_048997.json
deleted file mode 100644
index a4d1d29839d9d89d19500767a3b08422eb61bfb9..0000000000000000000000000000000000000000
--- a/conversations/conv_048997.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.457960882617297,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1425-139291.flac |",
-      "real_speaker_id": "1425",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 84382
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8765-295003.flac |",
-      "real_speaker_id": "8765",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.808336108269806,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 174450
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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\ No newline at end of file
diff --git a/conversations/conv_049001.json b/conversations/conv_049001.json
deleted file mode 100644
index 7adfbcfaa4ffdd9c345f957dcef1cb207d30c5fb..0000000000000000000000000000000000000000
--- a/conversations/conv_049001.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127183.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049017.json b/conversations/conv_049017.json
deleted file mode 100644
index a7a7210d32fd151f5837ca6faf0354c420d15187..0000000000000000000000000000000000000000
--- a/conversations/conv_049017.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6726-93466.flac |",
-      "real_speaker_id": "6726",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98238.flac |",
-      "real_speaker_id": "7228",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7228-98202.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "7297-275885",
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-      "real_speaker_id": "7297",
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-      "real_speaker_id": "6726",
-      "position_frames": 78285
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_049021.json b/conversations/conv_049021.json
deleted file mode 100644
index 5444036bf9411be20a9f53dc182c433eff2f8a58..0000000000000000000000000000000000000000
--- a/conversations/conv_049021.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.584335877153524,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "957-130588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-130588.flac |",
-      "real_speaker_id": "957",
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-    {
-      "segment_id": "seg0001",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
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-  "paralinguistic_events": [
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-      "duration": 1.34,
-      "start_time": 25.11676784669286,
-      "speaker_id": "957"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_049036.json b/conversations/conv_049036.json
deleted file mode 100644
index 0b3d458838709b64aa97446a44d20058bb5f19b5..0000000000000000000000000000000000000000
--- a/conversations/conv_049036.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 0
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-      "utterance_id": "8635-295761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295761.flac |",
-      "real_speaker_id": "8635",
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-      "utterance_id": "5918-46890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.860866248861484,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 68492
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.309214528548925,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8635-295756.flac |",
-      "real_speaker_id": "8635",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 87341
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_049037.json b/conversations/conv_049037.json
deleted file mode 100644
index 259c22e6dfdd9aeabcdca876cdf0ea79ded95609..0000000000000000000000000000000000000000
--- a/conversations/conv_049037.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139741.flac |",
-      "real_speaker_id": "1974",
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-      "real_speaker_id": "6627",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 181056
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\ No newline at end of file
diff --git a/conversations/conv_049040.json b/conversations/conv_049040.json
deleted file mode 100644
index 80aafb1fefae11548a4a2289574142a6990b39ff..0000000000000000000000000000000000000000
--- a/conversations/conv_049040.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.875753144902585,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "6937-262269",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6937-262269.flac |",
-      "real_speaker_id": "6937",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "6937",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "3906",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6937-262269",
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-    {
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-      "start_time": 22.30848593418986,
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-}
\ No newline at end of file
diff --git a/conversations/conv_049056.json b/conversations/conv_049056.json
deleted file mode 100644
index c60e5b6ef9f2ff7417afddd5f442e41d7e4f732c..0000000000000000000000000000000000000000
--- a/conversations/conv_049056.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8573",
-      "position_frames": 98352
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\ No newline at end of file
diff --git a/conversations/conv_049060.json b/conversations/conv_049060.json
deleted file mode 100644
index 30f6ba80f7ddc04bd68518feabd2f58295135be4..0000000000000000000000000000000000000000
--- a/conversations/conv_049060.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_049061.json b/conversations/conv_049061.json
deleted file mode 100644
index 94a99fb4c61d95a2faba94d3c53afe9e79e8d79e..0000000000000000000000000000000000000000
--- a/conversations/conv_049061.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_049071.json b/conversations/conv_049071.json
deleted file mode 100644
index 92b11853f3244a4b3e625eda0af3795ac2d194ab..0000000000000000000000000000000000000000
--- a/conversations/conv_049071.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_049076.json b/conversations/conv_049076.json
deleted file mode 100644
index 8975dc6861a1149c30daf0de864215ee7ebd163e..0000000000000000000000000000000000000000
--- a/conversations/conv_049076.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3224-168204.flac |",
-      "real_speaker_id": "3224",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_049083.json b/conversations/conv_049083.json
deleted file mode 100644
index c21036ca199315941f16b3dc7b746744f8365009..0000000000000000000000000000000000000000
--- a/conversations/conv_049083.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.776496387462757,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "4010-10801",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10801.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "1756",
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-      "start_time": 28.486986299837913,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134820.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 98496
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-  "background_events": [
-    {
-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_049095.json b/conversations/conv_049095.json
deleted file mode 100644
index a6e177c27e75abd169412969d709fb72b70a9c60..0000000000000000000000000000000000000000
--- a/conversations/conv_049095.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_049099.json b/conversations/conv_049099.json
deleted file mode 100644
index 19ecaafba4cad304a38d397ba871479586c708e3..0000000000000000000000000000000000000000
--- a/conversations/conv_049099.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.045647362918416,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7720-105167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105167.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 0
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-      "real_speaker_id": "2481",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.290005321000788,
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-      "utterance_id": "3564-132498",
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-      "real_speaker_id": "3564",
-      "position_frames": 96646
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7720-105168.flac |",
-      "real_speaker_id": "7720",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2481-163597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-163597.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 0
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_049105.json b/conversations/conv_049105.json
deleted file mode 100644
index 0ad2e04224e5b66d4f220f6033cc96946286247c..0000000000000000000000000000000000000000
--- a/conversations/conv_049105.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-    {
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-      "real_speaker_id": "4133",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_049109.json b/conversations/conv_049109.json
deleted file mode 100644
index 192781b978014824f50107502e272fbf3fb791d6..0000000000000000000000000000000000000000
--- a/conversations/conv_049109.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8713-300047.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
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-      "real_speaker_id": "1572",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6196-41030.flac |",
-      "real_speaker_id": "6196",
-      "position_frames": 159446
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\ No newline at end of file
diff --git a/conversations/conv_049113.json b/conversations/conv_049113.json
deleted file mode 100644
index c59f0d82457de740f6b96d2608a574cf9c536c2d..0000000000000000000000000000000000000000
--- a/conversations/conv_049113.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58012.flac |",
-      "real_speaker_id": "6080",
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049118.json b/conversations/conv_049118.json
deleted file mode 100644
index 06a09514bef55c7201ce52d6577118c4f5ba3696..0000000000000000000000000000000000000000
--- a/conversations/conv_049118.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.573680686053567,
-  "num_speakers": 3,
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-      "start_time": 21.16145625888354,
-      "speaker_id": "204"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049124.json b/conversations/conv_049124.json
deleted file mode 100644
index f48bdb57e011c7c55fc9964de863c69cf09ab39e..0000000000000000000000000000000000000000
--- a/conversations/conv_049124.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4741-27757.flac |",
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-      "real_speaker_id": "7223",
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-      "speaker_id": 0,
-      "start_time": 22.65195186664208,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4741-27757.flac |",
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-      "segment_id": "seg0006",
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-      "start_time": 29.879389384546332,
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_049125.json b/conversations/conv_049125.json
deleted file mode 100644
index 1bbf3263bc4a92705b0eea7accfdb1f8e0976412..0000000000000000000000000000000000000000
--- a/conversations/conv_049125.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246893.flac |",
-      "real_speaker_id": "7069",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286247.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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-      "start_time": 30.76,
-      "speaker_id": "7069"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049129.json b/conversations/conv_049129.json
deleted file mode 100644
index 6bbcc39b17dd40c95f52683c488079dbfe45858a..0000000000000000000000000000000000000000
--- a/conversations/conv_049129.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-123270.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_049133.json b/conversations/conv_049133.json
deleted file mode 100644
index 6e823c14a13416fc2d06cca8263c861016bbe8bf..0000000000000000000000000000000000000000
--- a/conversations/conv_049133.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3962/laugh/0000.wav",
-      "duration": 0.5972134700292344,
-      "start_time": 23.97458015543023,
-      "speaker_id": "3962"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049134.json b/conversations/conv_049134.json
deleted file mode 100644
index 23e79dfaefb6e51e05261d902cbfacfc5e650179..0000000000000000000000000000000000000000
--- a/conversations/conv_049134.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.409390667481443,
-      "duration": 5.409390667481443,
-      "start_frame": 0,
-      "duration_frames": 86550,
-      "overlap": false,
-      "utterance_id": "7140-72210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72210.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.406924923500718,
-      "end_time": 10.057389182329539,
-      "duration": 3.6504642588288205,
-      "start_frame": 102510,
-      "duration_frames": 58407,
-      "overlap": false,
-      "utterance_id": "6950-86713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86713.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.564470248779696,
-      "end_time": 14.8677718936671,
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-      "overlap": false,
-      "utterance_id": "7140-72212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72212.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.543585353226984,
-      "end_time": 18.73224805599673,
-      "duration": 3.188662702769747,
-      "start_frame": 248697,
-      "duration_frames": 51018,
-      "overlap": false,
-      "utterance_id": "6950-86823",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86823.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.18188285257074,
-      "end_time": 23.18200264749549,
-      "duration": 4.00011979492475,
-      "start_frame": 306910,
-      "duration_frames": 64001,
-      "overlap": false,
-      "utterance_id": "7140-72205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72205.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.743707946842818,
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-      "duration": 6.041042489194329,
-      "start_frame": 379899,
-      "duration_frames": 96656,
-      "overlap": false,
-      "utterance_id": "6215-68888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-68888.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.66273749316609,
-      "end_time": 32.0,
-      "duration": 1.337262506833909,
-      "start_frame": 490603,
-      "duration_frames": 21396,
-      "overlap": false,
-      "utterance_id": "7140-72205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72205.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 64001
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/366069.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7140/laugh/0110.wav",
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-      "start_time": 5.532147765497709,
-      "speaker_id": "7140"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7140/cough/0083.wav",
-      "duration": 0.37830428144737227,
-      "start_time": 15.017887344372598,
-      "speaker_id": "7140"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7140/laugh/0022.wav",
-      "duration": 0.6440962026773335,
-      "start_time": 31.355903797322668,
-      "speaker_id": "7140"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049144.json b/conversations/conv_049144.json
deleted file mode 100644
index 997e685b7c6b2d8a458114320068c41194a8c833..0000000000000000000000000000000000000000
--- a/conversations/conv_049144.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.6619133078729833,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "22-121140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121140.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.233793695535249,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-296084.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121140.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 58590
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "8321-284207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-284207.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.013967190189977,
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-      "utterance_id": "7389-295014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7389-295014.flac |",
-      "real_speaker_id": "7389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.748834165798165,
-      "end_time": 32.0,
-      "duration": 3.251165834201835,
-      "start_frame": 459981,
-      "duration_frames": 52018,
-      "overlap": false,
-      "utterance_id": "8321-284207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8321-284207.flac |",
-      "real_speaker_id": "8321",
-      "position_frames": 96606
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "22"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.14,
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-    {
-      "event_class": "laugh",
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-      "start_time": 18.68766178549433,
-      "speaker_id": "8321"
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-    {
-      "event_class": "cough",
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-      "duration": 1.08,
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-      "speaker_id": "8321"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7389/laugh/0129.wav",
-      "duration": 0.9341265296381235,
-      "start_time": 28.581732393105387,
-      "speaker_id": "7389"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049148.json b/conversations/conv_049148.json
deleted file mode 100644
index 9f76e593cb2f303db4ddc01d1e2e42c4ed22ef7e..0000000000000000000000000000000000000000
--- a/conversations/conv_049148.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3641-134615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-134615.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0003",
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-      "overlap": true,
-      "utterance_id": "6173-94652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6173-94652.flac |",
-      "real_speaker_id": "6173",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "6173",
-      "position_frames": 74283
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 80693
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "3641"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049152.json b/conversations/conv_049152.json
deleted file mode 100644
index 04966f7140556d5de5b164373c471d776b377c82..0000000000000000000000000000000000000000
--- a/conversations/conv_049152.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.35554594162513,
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-      "utterance_id": "294-130872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "duration_frames": 80023,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-132570.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-130872.flac |",
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-  "foreground_events": [
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-      "duration": 1.24,
-      "start_time": 17.478089183569498,
-      "speaker_id": "294"
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-      "duration": 1.32,
-      "start_time": 18.353693836278943,
-      "speaker_id": "2007"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049159.json b/conversations/conv_049159.json
deleted file mode 100644
index ad6bd448d65f19c2c996650a7eb3fa2f10ea951c..0000000000000000000000000000000000000000
--- a/conversations/conv_049159.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.002719360029461,
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-      "utterance_id": "5809-58763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-58763.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.571015768691275,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-58763.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 64043
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-122456.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.97789757037041,
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-      "utterance_id": "5809-51162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51162.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.460596980566002,
-      "end_time": 32.0,
-      "duration": 5.539403019433998,
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-      "duration_frames": 88630,
-      "overlap": false,
-      "utterance_id": "5809-58763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-58763.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 129878
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-      "duration": 1.32,
-      "start_time": 24.91812050108606,
-      "speaker_id": "5809"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049164.json b/conversations/conv_049164.json
deleted file mode 100644
index a13a09730966aff9b89ed72f089664dc330de950..0000000000000000000000000000000000000000
--- a/conversations/conv_049164.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7938-109180",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-109180.flac |",
-      "real_speaker_id": "7938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.375112170345937,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-133256.flac |",
-      "real_speaker_id": "1183",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5538-224746.flac |",
-      "real_speaker_id": "5538",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-110128.flac |",
-      "real_speaker_id": "7938",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.271478478402884,
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-      "utterance_id": "1183-128659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-128659.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.400457292811243,
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-      "duration": 2.599542707188757,
-      "start_frame": 470407,
-      "duration_frames": 41592,
-      "overlap": false,
-      "utterance_id": "5538-224746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5538-224746.flac |",
-      "real_speaker_id": "5538",
-      "position_frames": 69073
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 1.24,
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-      "speaker_id": "7938"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5538/cough/0058.wav",
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-      "speaker_id": "5538"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049168.json b/conversations/conv_049168.json
deleted file mode 100644
index d7398ca3320ba2a0621faf0cc7c7dc92ba51a11b..0000000000000000000000000000000000000000
--- a/conversations/conv_049168.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2182-181173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181173.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3541-174244.flac |",
-      "real_speaker_id": "3541",
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-      "utterance_id": "2182-181173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181173.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 80332
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "2182-181183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3541",
-      "position_frames": 63249
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 50071,
-      "overlap": false,
-      "utterance_id": "2182-181183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 100902
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_8.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "2182"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/cough/0087.wav",
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-      "speaker_id": "2182"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049172.json b/conversations/conv_049172.json
deleted file mode 100644
index aa4703e9ee3bc56d2d489c7b2461ec84a0c2c9d0..0000000000000000000000000000000000000000
--- a/conversations/conv_049172.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1572-141718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141715.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3066.flac |",
-      "real_speaker_id": "4402",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/403/laugh/0019.wav",
-      "duration": 1.44,
-      "start_time": 6.10751507757482,
-      "speaker_id": "403"
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-      "event_class": "cough",
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-      "speaker_id": "403"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049187.json b/conversations/conv_049187.json
deleted file mode 100644
index 15bbf424ef88fcc0d806f65283e778c2a7a5210f..0000000000000000000000000000000000000000
--- a/conversations/conv_049187.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.35203275805164,
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-      "utterance_id": "6707-77346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77346.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.0209719628942056,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1717-142305.flac |",
-      "real_speaker_id": "1717",
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-      "speaker_id": 1,
-      "start_time": 12.866220786204025,
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-      "overlap": true,
-      "utterance_id": "3547-8365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-8365.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.873191713023594,
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-      "utterance_id": "6707-73028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-73028.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.481031821386942,
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-      "utterance_id": "3547-8363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-8363.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.203603884419532,
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-      "utterance_id": "6707-77351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6707-77351.flac |",
-      "real_speaker_id": "6707",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049191.json b/conversations/conv_049191.json
deleted file mode 100644
index ca0a4b17d9039c00ec64de69bfb85b670b8645a6..0000000000000000000000000000000000000000
--- a/conversations/conv_049191.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.553750434906355,
-  "num_speakers": 3,
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-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-169656.flac |",
-      "real_speaker_id": "2294",
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-      "utterance_id": "2294-161707",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125874.flac |",
-      "real_speaker_id": "336",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.131517483015287,
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-      "utterance_id": "2294-169656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-169656.flac |",
-      "real_speaker_id": "2294",
-      "position_frames": 73417
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_049200.json b/conversations/conv_049200.json
deleted file mode 100644
index 96d317da8879cb977f33e24d875ac12107c740f1..0000000000000000000000000000000000000000
--- a/conversations/conv_049200.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31892.flac |",
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-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049216.json b/conversations/conv_049216.json
deleted file mode 100644
index 1e01eaa30e0d5eaceeb591033f454a7d7264fa2e..0000000000000000000000000000000000000000
--- a/conversations/conv_049216.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "2301-157471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157471.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3723-171115.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049220.json b/conversations/conv_049220.json
deleted file mode 100644
index 5553076fc0ca45a711ce01d1cb3a99b9644ab3c9..0000000000000000000000000000000000000000
--- a/conversations/conv_049220.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-134311.flac |",
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-      "real_speaker_id": "7679",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133254.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.204640511101097,
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-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_049227.json b/conversations/conv_049227.json
deleted file mode 100644
index dd0e426c5a1ee259ad22d57a86dfec0369bfa57c..0000000000000000000000000000000000000000
--- a/conversations/conv_049227.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3486-166424",
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\ No newline at end of file
diff --git a/conversations/conv_049231.json b/conversations/conv_049231.json
deleted file mode 100644
index e396c280f250c056f922a291ebc006e9846ea449..0000000000000000000000000000000000000000
--- a/conversations/conv_049231.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4420",
-      "position_frames": 0
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-      "position_frames": 132732
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_049236.json b/conversations/conv_049236.json
deleted file mode 100644
index a102d817a3e8b04853ffe9dcd64a8d488b5500d8..0000000000000000000000000000000000000000
--- a/conversations/conv_049236.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_049241.json b/conversations/conv_049241.json
deleted file mode 100644
index 899c4c1990afd1c43deddab71785ab474ae54a17..0000000000000000000000000000000000000000
--- a/conversations/conv_049241.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6088-34570.flac |",
-      "real_speaker_id": "6088",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24731.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24731.flac |",
-      "real_speaker_id": "4854",
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\ No newline at end of file
diff --git a/conversations/conv_049257.json b/conversations/conv_049257.json
deleted file mode 100644
index 8481ac848d9c364adae5b531b59c47ac070fd0b6..0000000000000000000000000000000000000000
--- a/conversations/conv_049257.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_049261.json b/conversations/conv_049261.json
deleted file mode 100644
index 92d83c0feb64c7f495ee7102a4fb1e2bf6f4b710..0000000000000000000000000000000000000000
--- a/conversations/conv_049261.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_049266.json b/conversations/conv_049266.json
deleted file mode 100644
index c048978901bd10528310e98390c0e263457daaa0..0000000000000000000000000000000000000000
--- a/conversations/conv_049266.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5660-101892.flac |",
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-      "real_speaker_id": "6865",
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\ No newline at end of file
diff --git a/conversations/conv_049270.json b/conversations/conv_049270.json
deleted file mode 100644
index b612b46a97e590031a3c4153dd84af0590d958bc..0000000000000000000000000000000000000000
--- a/conversations/conv_049270.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_049276.json b/conversations/conv_049276.json
deleted file mode 100644
index ef52432390bbd32e6086599944decbe3736d6fb1..0000000000000000000000000000000000000000
--- a/conversations/conv_049276.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_049277.json b/conversations/conv_049277.json
deleted file mode 100644
index 28f2002efda3c0fc2e877fba67484fc4cb8cb9dd..0000000000000000000000000000000000000000
--- a/conversations/conv_049277.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
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-  "num_speakers": 2,
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-      "duration": 1.4,
-      "start_time": 24.4112535059578,
-      "speaker_id": "2404"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049282.json b/conversations/conv_049282.json
deleted file mode 100644
index 2ec1ed7142fbba208a46d003ff4659605fc0d674..0000000000000000000000000000000000000000
--- a/conversations/conv_049282.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.300857117872365,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 9.56241115349562,
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-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 55672
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.590394127641087,
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-      "utterance_id": "884-129800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 126426
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
-      "real_speaker_id": "884",
-      "position_frames": 90676
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_049289.json b/conversations/conv_049289.json
deleted file mode 100644
index c4da1b91fcac4a5640490e2fc5557ece8e1569a9..0000000000000000000000000000000000000000
--- a/conversations/conv_049289.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "5606",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7679-276767.flac |",
-      "real_speaker_id": "7679",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1058-131113.flac |",
-      "real_speaker_id": "1058",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5606-54667.flac |",
-      "real_speaker_id": "5606",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7679-113325.flac |",
-      "real_speaker_id": "7679",
-      "position_frames": 65582
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_049294.json b/conversations/conv_049294.json
deleted file mode 100644
index f1b4e537e0624ba58b6a4e9a6d84ed7ec0b637c2..0000000000000000000000000000000000000000
--- a/conversations/conv_049294.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8222",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274379.flac |",
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-      "real_speaker_id": "8222",
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-      "real_speaker_id": "8758",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279233.flac |",
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-      "position_frames": 94850
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049298.json b/conversations/conv_049298.json
deleted file mode 100644
index 2bd4ac5b94fb36df98e0857b9f99abc1a59bac8a..0000000000000000000000000000000000000000
--- a/conversations/conv_049298.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7585/laugh/0012.wav",
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-      "start_time": 12.765030614207225,
-      "speaker_id": "7585"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8245/cough/0003.wav",
-      "duration": 0.88,
-      "start_time": 19.81793711033985,
-      "speaker_id": "8245"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7585/laugh/0056.wav",
-      "duration": 1.0446560425397924,
-      "start_time": 27.04329838062272,
-      "speaker_id": "7585"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8245/cough/0037.wav",
-      "duration": 0.88,
-      "start_time": 29.706927748370678,
-      "speaker_id": "8245"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049299.json b/conversations/conv_049299.json
deleted file mode 100644
index 3bb056d915d3b666f70ac7de6e522e4fb67418f0..0000000000000000000000000000000000000000
--- a/conversations/conv_049299.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.08898035442936,
-      "duration": 4.08898035442936,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "505-125272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125272.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.569587197600157,
-      "end_time": 7.94463662295189,
-      "duration": 3.375049425351733,
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-      "duration_frames": 54000,
-      "overlap": false,
-      "utterance_id": "505-125258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125258.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.498308005826273,
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-      "duration": 3.9919178050475477,
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-      "overlap": true,
-      "utterance_id": "8742-245708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245708.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 12.784961051887542,
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-      "duration": 4.720579407270888,
-      "start_frame": 204559,
-      "duration_frames": 75529,
-      "overlap": true,
-      "utterance_id": "505-125258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125258.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 54000
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.690501501483432,
-      "end_time": 23.798649054185827,
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-      "start_frame": 299048,
-      "duration_frames": 81730,
-      "overlap": false,
-      "utterance_id": "8742-245707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8742-245707.flac |",
-      "real_speaker_id": "8742",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.164749684967305,
-      "end_time": 29.03430793997988,
-      "duration": 4.869558255012574,
-      "start_frame": 386635,
-      "duration_frames": 77912,
-      "overlap": false,
-      "utterance_id": "8632-245697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8632-245697.flac |",
-      "real_speaker_id": "8632",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.331130125522762,
-      "end_time": 32.0,
-      "duration": 2.668869874477238,
-      "start_frame": 469298,
-      "duration_frames": 42701,
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-      "utterance_id": "505-125258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125258.flac |",
-      "real_speaker_id": "505",
-      "position_frames": 129529
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/505/cough/0002.wav",
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-      "start_time": 4.266742999652566,
-      "speaker_id": "505"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/505/laugh/0037.wav",
-      "duration": 0.7749889303295496,
-      "start_time": 17.770233858303797,
-      "speaker_id": "505"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8632/laugh/0105.wav",
-      "duration": 0.7498830476796227,
-      "start_time": 26.40995274001175,
-      "speaker_id": "8632"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049304.json b/conversations/conv_049304.json
deleted file mode 100644
index 167b5aa2db1c7b8e115acdb23d2154406625ce3b..0000000000000000000000000000000000000000
--- a/conversations/conv_049304.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.542151282348442,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 4.227475775722418,
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-      "overlap": false,
-      "utterance_id": "3857-182315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182315.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.420244258198382,
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-      "start_frame": 70723,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.835190600774878,
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-      "duration_frames": 68483,
-      "overlap": false,
-      "utterance_id": "7839-109872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7839-109872.flac |",
-      "real_speaker_id": "7839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.11925633686274,
-      "end_time": 21.44995797229275,
-      "duration": 5.33070163543001,
-      "start_frame": 257908,
-      "duration_frames": 85291,
-      "overlap": false,
-      "utterance_id": "3857-182317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182317.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.76232775510152,
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-      "overlap": false,
-      "utterance_id": "3857-180923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.224473940780236,
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-      "overlap": true,
-      "utterance_id": "3857-182317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182317.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 85291
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049308.json b/conversations/conv_049308.json
deleted file mode 100644
index ad3dbdfbf278b9108161b88a868d649f890fa335..0000000000000000000000000000000000000000
--- a/conversations/conv_049308.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.419765471720435,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2182-181183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.773975237703551,
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-      "overlap": false,
-      "utterance_id": "204-148920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-148920.flac |",
-      "real_speaker_id": "204",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.397116154575903,
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-      "utterance_id": "2182-181183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "204",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1152-126550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1152-126550.flac |",
-      "real_speaker_id": "1152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.93015693010186,
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-      "utterance_id": "2182-181183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 154129
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2182/laugh/0035.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/204/laugh/0009.wav",
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-      "speaker_id": "204"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049312.json b/conversations/conv_049312.json
deleted file mode 100644
index 6d2b69c4c347585e30ab1228c4de125740dfe484..0000000000000000000000000000000000000000
--- a/conversations/conv_049312.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.204596615159918,
-      "duration": 6.204596615159918,
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-      "duration_frames": 99273,
-      "overlap": false,
-      "utterance_id": "4014-186176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4014-186176.flac |",
-      "real_speaker_id": "4014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.550929483686332,
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-      "utterance_id": "2688-144987",
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-      "real_speaker_id": "2688",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4014-186175",
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-      "real_speaker_id": "4014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 176297
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "duration": 1.5609588625309598,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-1150.flac |",
-      "real_speaker_id": "3361",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4014/laugh/0090.wav",
-      "duration": 1.2,
-      "start_time": 10.437214156371125,
-      "speaker_id": "4014"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2688/laugh/0068.wav",
-      "duration": 1.270364266991817,
-      "start_time": 17.478132697688864,
-      "speaker_id": "2688"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049323.json b/conversations/conv_049323.json
deleted file mode 100644
index 73cde079f5c8cbcf4433a5300e83c6fb38d9fbba..0000000000000000000000000000000000000000
--- a/conversations/conv_049323.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.86776534353768,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1182-134316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134316.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "start_time": 3.4242557112745655,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
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-      "position_frames": 0
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-      "start_time": 9.236674821622636,
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-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 13.579021536739234,
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-      "utterance_id": "1182-134981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134981.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.821304678785083,
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-      "utterance_id": "1182-134981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1182-134981.flac |",
-      "real_speaker_id": "1182",
-      "position_frames": 101554
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.788490443272757,
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-      "utterance_id": "5325-50109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5325-50109.flac |",
-      "real_speaker_id": "5325",
-      "position_frames": 82230
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-  "background_events": [
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049324.json b/conversations/conv_049324.json
deleted file mode 100644
index 1aa3e2d8e42eb8f48db137a35fa33aa11630b8ac..0000000000000000000000000000000000000000
--- a/conversations/conv_049324.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.46214054136376,
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-  "overlap_rate": 0.2857142857142857,
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/764-132280.flac |",
-      "real_speaker_id": "764",
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-      "real_speaker_id": "1342",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1342",
-      "position_frames": 0
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-      "real_speaker_id": "764",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049328.json b/conversations/conv_049328.json
deleted file mode 100644
index 3e48ebf3acffc8b00a949046a0474986962ab114..0000000000000000000000000000000000000000
--- a/conversations/conv_049328.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.440645072389614,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "3779-691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-133452.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/690-133452.flac |",
-      "real_speaker_id": "690",
-      "position_frames": 105686
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
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-      "position_frames": 155423
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-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "cough",
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-      "start_time": 0,
-      "speaker_id": "3779"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049332.json b/conversations/conv_049332.json
deleted file mode 100644
index fce3d80c168993e7552664e6335c6428ac54fd8c..0000000000000000000000000000000000000000
--- a/conversations/conv_049332.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.893561982523693,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7326-96553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-96553.flac |",
-      "real_speaker_id": "7326",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139404.flac |",
-      "real_speaker_id": "1445",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1445-139397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139397.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139397.flac |",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1445/laugh/0021.wav",
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-      "speaker_id": "1445"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049333.json b/conversations/conv_049333.json
deleted file mode 100644
index b75c33b2851ab35ea221d5f9fc0d9dd3abcc1f70..0000000000000000000000000000000000000000
--- a/conversations/conv_049333.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.05093397831854,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-113765.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
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-      "utterance_id": "1789-137618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-137618.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-142896.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 90723
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41798.flac |",
-      "real_speaker_id": "5480",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_049335.json b/conversations/conv_049335.json
deleted file mode 100644
index eeafa80ff86ccea057e8850ff3c60b98a8b18de2..0000000000000000000000000000000000000000
--- a/conversations/conv_049335.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/337-126286.flac |",
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-      "speaker_id": 0,
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-      "real_speaker_id": "4226",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_049345.json b/conversations/conv_049345.json
deleted file mode 100644
index dc8e6394dcef680f9557b9a0257028eb6355f0ea..0000000000000000000000000000000000000000
--- a/conversations/conv_049345.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_049348.json b/conversations/conv_049348.json
deleted file mode 100644
index 8790760480cb5b7a31e376b0f16eeae36e8409a4..0000000000000000000000000000000000000000
--- a/conversations/conv_049348.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1552-140656.flac |",
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-    {
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-      "real_speaker_id": "3214",
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-      "duration": 1.24,
-      "start_time": 8.967672866871103,
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-}
\ No newline at end of file
diff --git a/conversations/conv_049349.json b/conversations/conv_049349.json
deleted file mode 100644
index 422bb810353e758f24d33f249062c8a348530036..0000000000000000000000000000000000000000
--- a/conversations/conv_049349.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.151911594244382,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1355-39947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24788.flac |",
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-      "utterance_id": "3592-173545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3592-173545.flac |",
-      "real_speaker_id": "3592",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
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-      "real_speaker_id": "3592",
-      "position_frames": 76327
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1355-39947.flac |",
-      "real_speaker_id": "1355",
-      "position_frames": 162899
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_049353.json b/conversations/conv_049353.json
deleted file mode 100644
index d3cc6b99359b846ec24a4c9990bb4079d868272d..0000000000000000000000000000000000000000
--- a/conversations/conv_049353.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.5,
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-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "6962",
-      "position_frames": 52486
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-      "segment_id": "seg0003",
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049362.json b/conversations/conv_049362.json
deleted file mode 100644
index 2a9cc8d89185e68b4daf00fe53e299091b657171..0000000000000000000000000000000000000000
--- a/conversations/conv_049362.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3119-163519.flac |",
-      "real_speaker_id": "3119",
-      "position_frames": 0
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-      "utterance_id": "8071-114975",
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-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_049365.json b/conversations/conv_049365.json
deleted file mode 100644
index 842b0487c02e02dc695c2fcad6b4a634d296e9db..0000000000000000000000000000000000000000
--- a/conversations/conv_049365.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1280-135136.flac |",
-      "real_speaker_id": "1280",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_049369.json b/conversations/conv_049369.json
deleted file mode 100644
index a242814dd788ccfe90552d750b264d545126242d..0000000000000000000000000000000000000000
--- a/conversations/conv_049369.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 81930
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-      "segment_id": "seg0005",
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-      "utterance_id": "5968-71320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5968-71320.flac |",
-      "real_speaker_id": "5968",
-      "position_frames": 65637
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_049373.json b/conversations/conv_049373.json
deleted file mode 100644
index 3fe716a489b70cbf6973235d86087f9b6cb73358..0000000000000000000000000000000000000000
--- a/conversations/conv_049373.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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-      "real_speaker_id": "2297",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_049374.json b/conversations/conv_049374.json
deleted file mode 100644
index 3e3208f2a9429c7277fd8019074e2cc3b3a8997d..0000000000000000000000000000000000000000
--- a/conversations/conv_049374.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.315650143756155,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "3001",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
-      "position_frames": 88281
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-  ],
-  "background_events": [
-    {
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-      "start_time": 30.68,
-      "speaker_id": "807"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049386.json b/conversations/conv_049386.json
deleted file mode 100644
index e19ad5dc790e8956da802198e9d9f5aa9b3431cc..0000000000000000000000000000000000000000
--- a/conversations/conv_049386.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39676.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.2648184465054,
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-      "utterance_id": "3307-145138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3307-145138.flac |",
-      "real_speaker_id": "3307",
-      "position_frames": 75684
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39678.flac |",
-      "real_speaker_id": "6333",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "2288-155711",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2288-155711.flac |",
-      "real_speaker_id": "2288",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.86848777093955,
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-      "utterance_id": "6333-39676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6333-39676.flac |",
-      "real_speaker_id": "6333",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3307/laugh/0049.wav",
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-      "event_class": "cough",
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-      "start_time": 23.812535404953604,
-      "speaker_id": "6333"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049390.json b/conversations/conv_049390.json
deleted file mode 100644
index aaae6345777bb5467a31fd12eb4c5de879aa6e5d..0000000000000000000000000000000000000000
--- a/conversations/conv_049390.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4280-185518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40567.flac |",
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-      "position_frames": 0
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-      "utterance_id": "4766-1814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4766-1814.flac |",
-      "real_speaker_id": "4766",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.920461798092237,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40567.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 94246
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.006042936342133,
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-      "utterance_id": "4280-185518",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4280-185518.flac |",
-      "real_speaker_id": "4280",
-      "position_frames": 76395
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.836085069112023,
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-      "duration": 5.163914930887977,
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-      "overlap": false,
-      "utterance_id": "5649-40582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40582.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049406.json b/conversations/conv_049406.json
deleted file mode 100644
index 6053b97cf49c6a959760620318b1c4ecb5970754..0000000000000000000000000000000000000000
--- a/conversations/conv_049406.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7881-109662",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-109662.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "8040",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-105574.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8040-111641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-111641.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 83039
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.830338148547433,
-      "end_time": 26.70861007093002,
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-      "overlap": false,
-      "utterance_id": "7881-110131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7881-110131.flac |",
-      "real_speaker_id": "7881",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-260923.flac |",
-      "real_speaker_id": "8040",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_049410.json b/conversations/conv_049410.json
deleted file mode 100644
index 4d7796f9637058a690ad7b8f1f0bdd315b09661d..0000000000000000000000000000000000000000
--- a/conversations/conv_049410.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.743250984676237,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "start_frame": 0,
-      "duration_frames": 68900,
-      "overlap": false,
-      "utterance_id": "2148-6984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6984.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.79286829515159,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6984.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 68900
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-    {
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2148-6979",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration": 4.1313085764795705,
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-      "utterance_id": "2148-6979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6979.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 63200
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3876/laugh/0014.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049421.json b/conversations/conv_049421.json
deleted file mode 100644
index 723c09ddcb12f620260eef1d43d4eacb6199f04e..0000000000000000000000000000000000000000
--- a/conversations/conv_049421.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.8893264214806162,
-      "duration": 3.8893264214806162,
-      "start_frame": 0,
-      "duration_frames": 62229,
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-      "utterance_id": "1417-1536",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6557.flac |",
-      "real_speaker_id": "3927",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "8725",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1536.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_049426.json b/conversations/conv_049426.json
deleted file mode 100644
index 4f742994b6ede972fab2a8af0746cc8c731f8b23..0000000000000000000000000000000000000000
--- a/conversations/conv_049426.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "1772-135621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1772-135621.flac |",
-      "real_speaker_id": "1772",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "position_frames": 131268
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-      "real_speaker_id": "5781",
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-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_049430.json b/conversations/conv_049430.json
deleted file mode 100644
index a6d22286c42c4b5c26231d8454abfded67754faf..0000000000000000000000000000000000000000
--- a/conversations/conv_049430.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6743-72306.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "6743",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/803-139752.flac |",
-      "real_speaker_id": "803",
-      "position_frames": 0
-    }
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "6743"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 11.370593105251952,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6743/laugh/0008.wav",
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-      "duration": 1.48,
-      "start_time": 25.988059005377014,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049431.json b/conversations/conv_049431.json
deleted file mode 100644
index df2857a402bc702c3234bb36f27d38a8bf8a81b1..0000000000000000000000000000000000000000
--- a/conversations/conv_049431.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1767-142941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142941.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
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-    {
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-      "real_speaker_id": "4161",
-      "position_frames": 89066
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049447.json b/conversations/conv_049447.json
deleted file mode 100644
index 5ea9c80fdbec6d02a611942b09fd3684f1879358..0000000000000000000000000000000000000000
--- a/conversations/conv_049447.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.644517192088138,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.8390867123803245,
-      "duration": 3.8390867123803245,
-      "start_frame": 0,
-      "duration_frames": 61425,
-      "overlap": false,
-      "utterance_id": "5389-4861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.929716949131937,
-      "end_time": 8.850180669754023,
-      "duration": 3.9204637206220863,
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-      "overlap": false,
-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.162026815998132,
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-      "duration": 6.2711828961365805,
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-      "overlap": false,
-      "utterance_id": "39-121914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121914.flac |",
-      "real_speaker_id": "39",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.062648528805042,
-      "end_time": 22.081342333810724,
-      "duration": 6.018693805005682,
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-      "duration_frames": 96299,
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-      "utterance_id": "5389-4861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 61425
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.484728447941453,
-      "end_time": 26.128187803059745,
-      "duration": 3.6434593551182917,
-      "start_frame": 359755,
-      "duration_frames": 58295,
-      "overlap": false,
-      "utterance_id": "3221-9174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.307917289158326,
-      "end_time": 31.644517192088138,
-      "duration": 5.336599902929812,
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-      "duration_frames": 85385,
-      "overlap": true,
-      "utterance_id": "5389-4861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 157724
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5389/laugh/0098.wav",
-      "duration": 1.44,
-      "start_time": 3.8751341067544836,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5389/laugh/0104.wav",
-      "duration": 1.2023807019064388,
-      "start_time": 30.79761929809356,
-      "speaker_id": "5389"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049451.json b/conversations/conv_049451.json
deleted file mode 100644
index 518379eded5498e64012535a8bc5c1f8f24b05bb..0000000000000000000000000000000000000000
--- a/conversations/conv_049451.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.789982315278618,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.011542119641932,
-      "duration": 5.011542119641932,
-      "start_frame": 0,
-      "duration_frames": 80184,
-      "overlap": false,
-      "utterance_id": "8425-291444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-291444.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.681401830628521,
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-      "overlap": false,
-      "utterance_id": "8718-295445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295445.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.04987978005346,
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-      "overlap": true,
-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "8425",
-      "position_frames": 80184
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.987571967101637,
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-      "start_frame": 399801,
-      "duration_frames": 89937,
-      "overlap": false,
-      "utterance_id": "4640-19188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19188.flac |",
-      "real_speaker_id": "4640",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.72241617641677,
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-      "utterance_id": "4640-19188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4640-19188.flac |",
-      "real_speaker_id": "4640",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_049466.json b/conversations/conv_049466.json
deleted file mode 100644
index a5b5ea49b70590b27bfd6ba5da7cc81d70581ff2..0000000000000000000000000000000000000000
--- a/conversations/conv_049466.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3114-170977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3114-170977.flac |",
-      "real_speaker_id": "3114",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-41911.flac |",
-      "real_speaker_id": "5389",
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-    {
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-      "real_speaker_id": "3114",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5389",
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-    {
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-      "utterance_id": "3114-170976",
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-      "real_speaker_id": "3114",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-  "paralinguistic_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_049467.json b/conversations/conv_049467.json
deleted file mode 100644
index 4d22fe5d483dd04754785f83f157aa039763dfff..0000000000000000000000000000000000000000
--- a/conversations/conv_049467.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1754-137004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1754-137004.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "speaker_id": "4599"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049471.json b/conversations/conv_049471.json
deleted file mode 100644
index 4f47fd527859a3980918162b4d4888042f005831..0000000000000000000000000000000000000000
--- a/conversations/conv_049471.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.948978500935155,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 0
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-    {
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-      "start_time": 6.107276116955742,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 17.601509479356977,
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-      "utterance_id": "283-130638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
-      "real_speaker_id": "283",
-      "position_frames": 145547
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "46-128001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
-      "real_speaker_id": "46",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/283-130638.flac |",
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-      "position_frames": 202655
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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\ No newline at end of file
diff --git a/conversations/conv_049484.json b/conversations/conv_049484.json
deleted file mode 100644
index 3ed936b6a2f36ab7e1aa35fd50581cae60994c6e..0000000000000000000000000000000000000000
--- a/conversations/conv_049484.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "8040",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-92170.flac |",
-      "real_speaker_id": "7073",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8040-260923.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_049488.json b/conversations/conv_049488.json
deleted file mode 100644
index acbc9f6ce7fc78e36c50776a3b4589cd9700c4d4..0000000000000000000000000000000000000000
--- a/conversations/conv_049488.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/593-126928.flac |",
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_049492.json b/conversations/conv_049492.json
deleted file mode 100644
index 1116039b13a74bf382efe2e89e6d6b005d328885..0000000000000000000000000000000000000000
--- a/conversations/conv_049492.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "duration": 1.3233758377086968,
-      "start_time": 30.06551883990271,
-      "speaker_id": "52"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6660/laugh/0047.wav",
-      "duration": 0.938452456232233,
-      "start_time": 31.005763003611968,
-      "speaker_id": "6660"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049502.json b/conversations/conv_049502.json
deleted file mode 100644
index 1de9d84c3f11d5ee8961909a2a2abd87bfc0228c..0000000000000000000000000000000000000000
--- a/conversations/conv_049502.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.498103490143524,
-      "duration": 5.498103490143524,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "836-130900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-130900.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.416187220080062,
-      "end_time": 13.105082551033027,
-      "duration": 6.688895330952965,
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-      "overlap": true,
-      "utterance_id": "460-172357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172357.flac |",
-      "real_speaker_id": "460",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.614068183960413,
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-      "duration": 5.994806468521478,
-      "start_frame": 217825,
-      "duration_frames": 95916,
-      "overlap": false,
-      "utterance_id": "836-130900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-130900.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 87969
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.243813787998917,
-      "end_time": 25.24637415762975,
-      "duration": 5.0025603696308325,
-      "start_frame": 323901,
-      "duration_frames": 80040,
-      "overlap": false,
-      "utterance_id": "460-172357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172357.flac |",
-      "real_speaker_id": "460",
-      "position_frames": 107022
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.501999596906284,
-      "end_time": 31.197130527603605,
-      "duration": 5.695130930697321,
-      "start_frame": 408031,
-      "duration_frames": 91122,
-      "overlap": false,
-      "utterance_id": "6513-67788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-67788.flac |",
-      "real_speaker_id": "6513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.511841293217703,
-      "end_time": 32.0,
-      "duration": 0.488158706782297,
-      "start_frame": 504189,
-      "duration_frames": 7810,
-      "overlap": false,
-      "utterance_id": "836-131106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/836-131106.flac |",
-      "real_speaker_id": "836",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
-      "duration": 1.9167467982306694,
-      "start_time": 8.708012564545898
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
-      "duration": 0.41732426303854875,
-      "start_time": 2.230315048737064
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_049509.json b/conversations/conv_049509.json
deleted file mode 100644
index 27b6c60b962121d214eed21c427b1dc8e52cc880..0000000000000000000000000000000000000000
--- a/conversations/conv_049509.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.787395762777574,
-      "duration": 6.787395762777574,
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-      "overlap": false,
-      "utterance_id": "6749-74575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-74575.flac |",
-      "real_speaker_id": "6749",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.6092560332205945,
-      "end_time": 11.274092903777142,
-      "duration": 3.664836870556548,
-      "start_frame": 121748,
-      "duration_frames": 58637,
-      "overlap": false,
-      "utterance_id": "6709-74041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6709-74041.flac |",
-      "real_speaker_id": "6709",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.547046296187364,
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-      "duration_frames": 68874,
-      "overlap": false,
-      "utterance_id": "6749-53256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-53256.flac |",
-      "real_speaker_id": "6749",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.706395749096547,
-      "end_time": 23.362459958105553,
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-      "start_frame": 283302,
-      "duration_frames": 90497,
-      "overlap": false,
-      "utterance_id": "7982-110054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-110054.flac |",
-      "real_speaker_id": "7982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.577154678469913,
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-      "overlap": false,
-      "utterance_id": "6709-81688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6709-81688.flac |",
-      "real_speaker_id": "6709",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.826187288081137,
-      "end_time": 32.0,
-      "duration": 1.1738127119188633,
-      "start_frame": 493218,
-      "duration_frames": 18781,
-      "overlap": false,
-      "utterance_id": "7982-110054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-110054.flac |",
-      "real_speaker_id": "7982",
-      "position_frames": 90497
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 16.39072399898446,
-      "start_time": 0.041660866261310436
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
-      "duration": 1.53951285090529,
-      "start_time": 29.36026375201468
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.412058402520307,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6749/laugh/0114.wav",
-      "duration": 0.92,
-      "start_time": 1.3182395767853219,
-      "speaker_id": "6749"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6709/laugh/0061.wav",
-      "duration": 0.9864651069354278,
-      "start_time": 11.461782454017923,
-      "speaker_id": "6709"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6709/cough/0102.wav",
-      "duration": 0.38318096844442134,
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-      "speaker_id": "6709"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6749/laugh/0128.wav",
-      "duration": 1.16,
-      "start_time": 13.649515012675513,
-      "speaker_id": "6749"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6749/cough/0147.wav",
-      "duration": 0.6733859257125108,
-      "start_time": 11.859685791138505,
-      "speaker_id": "6749"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6709/laugh/0040.wav",
-      "duration": 1.2,
-      "start_time": 27.722931421483366,
-      "speaker_id": "6709"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049514.json b/conversations/conv_049514.json
deleted file mode 100644
index fcebacfabb40dd70df79b730bc50a2ab41e48b64..0000000000000000000000000000000000000000
--- a/conversations/conv_049514.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5012-31097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31097.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.5633509734082045,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.715616251554067,
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-      "utterance_id": "412-126975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 78953
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.316777218285058,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 150433
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.06999915610765,
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-      "utterance_id": "5012-80192",
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-      "real_speaker_id": "5012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.54622308464687,
-      "end_time": 29.95902567816455,
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-      "start_frame": 376739,
-      "duration_frames": 102604,
-      "overlap": false,
-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.2684000918483,
-      "end_time": 32.0,
-      "duration": 1.7315999081517006,
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-      "utterance_id": "5012-80192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 63287
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/412/laugh/0038.wav",
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-      "start_time": 3.839096549892605,
-      "speaker_id": "412"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049518.json b/conversations/conv_049518.json
deleted file mode 100644
index f2e52d3866afef37878643140ab8febe3dd78b3b..0000000000000000000000000000000000000000
--- a/conversations/conv_049518.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.464538042956267,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1559-139347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
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-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "1559-139353",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_17.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4010/laugh/0100.wav",
-      "duration": 0.5059941029411119,
-      "start_time": 9.944280082496286,
-      "speaker_id": "4010"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4010/cough/0035.wav",
-      "duration": 0.5825215877275336,
-      "start_time": 5.351612514631216,
-      "speaker_id": "4010"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1559/cough/0105.wav",
-      "duration": 1.3521449871461337,
-      "start_time": 10.620514316350958,
-      "speaker_id": "1559"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049522.json b/conversations/conv_049522.json
deleted file mode 100644
index 5db2d90737d62d26e77615e5fec3f5309b73ed4a..0000000000000000000000000000000000000000
--- a/conversations/conv_049522.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.4166427099409926,
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-      "overlap": false,
-      "utterance_id": "3675-185514",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-185514.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.052144228813784,
-      "end_time": 8.673502750961944,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 9.3051238347705,
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-      "utterance_id": "3675-10687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-10687.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.708985246651332,
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-      "utterance_id": "2162-164461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-164461.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.732012901817612,
-      "end_time": 27.561823520875848,
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-      "utterance_id": "3675-10687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-10687.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 62442
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.983005459559784,
-      "end_time": 31.16943657524877,
-      "duration": 3.186431115688987,
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-      "overlap": false,
-      "utterance_id": "3675-187020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-187020.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.29783242017563,
-      "end_time": 32.0,
-      "duration": 0.7021675798243692,
-      "start_frame": 500765,
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-      "overlap": false,
-      "utterance_id": "2162-181961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2162-181961.flac |",
-      "real_speaker_id": "2162",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3675/laugh/0052.wav",
-      "duration": 0.6686501126004674,
-      "start_time": 0,
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-    {
-      "event_class": "cough",
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-      "duration": 1.0287713165997838,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "2162"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049534.json b/conversations/conv_049534.json
deleted file mode 100644
index 65026585fc47ac95c687b0ebd1d1bd317f3e6ad1..0000000000000000000000000000000000000000
--- a/conversations/conv_049534.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "774-127930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/774-127930.flac |",
-      "real_speaker_id": "774",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278844.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.380230666706566,
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-      "overlap": true,
-      "utterance_id": "428-125879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125879.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.943814684926338,
-      "end_time": 18.311530409706588,
-      "duration": 4.367715724780251,
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-      "duration_frames": 69883,
-      "overlap": true,
-      "utterance_id": "6399-278847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278847.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.78040743149822,
-      "end_time": 25.83091089307349,
-      "duration": 6.050503461575272,
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-      "duration_frames": 96808,
-      "overlap": false,
-      "utterance_id": "428-125879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125879.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 86621
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.98194524177883,
-      "end_time": 32.0,
-      "duration": 5.018054758221169,
-      "start_frame": 431711,
-      "duration_frames": 80288,
-      "overlap": false,
-      "utterance_id": "6399-278844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278844.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 57069
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
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-      "start_time": 15.654116326404063
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_049538.json b/conversations/conv_049538.json
deleted file mode 100644
index 5c38e2275b918a27c695d25c7223d4df19389555..0000000000000000000000000000000000000000
--- a/conversations/conv_049538.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7331-86025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86025.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.325075001163548,
-      "end_time": 9.373840375398123,
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-      "utterance_id": "7331-86047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86047.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.79010638020927,
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-      "overlap": false,
-      "utterance_id": "3866-173230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-173230.flac |",
-      "real_speaker_id": "3866",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.983576108973452,
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-      "duration_frames": 92226,
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-      "utterance_id": "3361-130131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-130131.flac |",
-      "real_speaker_id": "3361",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "3866",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3361-130131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-130131.flac |",
-      "real_speaker_id": "3361",
-      "position_frames": 92226
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "3866"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049543.json b/conversations/conv_049543.json
deleted file mode 100644
index ff4303287689e821fb71c9fbeb38be1e131b74dc..0000000000000000000000000000000000000000
--- a/conversations/conv_049543.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.86196530712496,
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-      "duration_frames": 93791,
-      "overlap": false,
-      "utterance_id": "1806-143946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143946.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.40315798282887,
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-      "real_speaker_id": "8587",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8587-295533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295533.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295524.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 30.36612253975448,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121413.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
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-      "speaker_id": "2238"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049548.json b/conversations/conv_049548.json
deleted file mode 100644
index 7c1cbf1e7172538a6835532d42c4dd607fb3fb9c..0000000000000000000000000000000000000000
--- a/conversations/conv_049548.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
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-      "position_frames": 0
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-      "start_time": 6.490995903401704,
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-      "utterance_id": "3922-715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-715.flac |",
-      "real_speaker_id": "3922",
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-      "start_time": 18.00529890915241,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 98565
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2436-2477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2477.flac |",
-      "real_speaker_id": "2436",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.35643062458187,
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-      "utterance_id": "2436-2481",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2436-2481.flac |",
-      "real_speaker_id": "2436",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049555.json b/conversations/conv_049555.json
deleted file mode 100644
index f9bb159b9430d19dd3f81629881fdabae9e52a0b..0000000000000000000000000000000000000000
--- a/conversations/conv_049555.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6784-76150",
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-      "real_speaker_id": "1165",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "6784",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76150.flac |",
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-      "speaker_id": "6224"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049559.json b/conversations/conv_049559.json
deleted file mode 100644
index e672306342033d93aab72f07f346235cafa342d5..0000000000000000000000000000000000000000
--- a/conversations/conv_049559.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7255-281345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-281345.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1154-134886.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-291500.flac |",
-      "real_speaker_id": "7255",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "7255",
-      "position_frames": 83302
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4013-182396",
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_049563.json b/conversations/conv_049563.json
deleted file mode 100644
index 73e6d71fbfe9ac38301cc2d5461167c51a494324..0000000000000000000000000000000000000000
--- a/conversations/conv_049563.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.019022120180203,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-123270.flac |",
-      "real_speaker_id": "176",
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\ No newline at end of file
diff --git a/conversations/conv_049564.json b/conversations/conv_049564.json
deleted file mode 100644
index 9f2268ee1d674d54b61b187d44ee291053c263c2..0000000000000000000000000000000000000000
--- a/conversations/conv_049564.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_049574.json b/conversations/conv_049574.json
deleted file mode 100644
index 4bd9590d505cd2e54e6e6df0bbef8908eac642c8..0000000000000000000000000000000000000000
--- a/conversations/conv_049574.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_049575.json b/conversations/conv_049575.json
deleted file mode 100644
index e188ddf0d51dae8e887348355ea201d59ebc5799..0000000000000000000000000000000000000000
--- a/conversations/conv_049575.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 2,
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-      "speaker_id": "4520"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5700/laugh/0071.wav",
-      "duration": 1.36,
-      "start_time": 15.332976162151558,
-      "speaker_id": "5700"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5700/laugh/0075.wav",
-      "duration": 0.9284182423071046,
-      "start_time": 23.437425252610428,
-      "speaker_id": "5700"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4520/laugh/0061.wav",
-      "duration": 1.0,
-      "start_time": 30.058590126262164,
-      "speaker_id": "4520"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049579.json b/conversations/conv_049579.json
deleted file mode 100644
index 1c718dcc9fdbc263179ba3635d236e26ca1f7652..0000000000000000000000000000000000000000
--- a/conversations/conv_049579.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.085348567366433,
-      "duration": 4.085348567366433,
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-      "overlap": false,
-      "utterance_id": "5622-19214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-19214.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.786002875401907,
-      "end_time": 11.437446675433723,
-      "duration": 6.6514438000318155,
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-      "overlap": false,
-      "utterance_id": "4059-3069",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3069.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.85086785578648,
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-      "duration_frames": 49074,
-      "overlap": false,
-      "utterance_id": "7498-99156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99156.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.489345693460614,
-      "end_time": 21.692518638777234,
-      "duration": 5.203172945316621,
-      "start_frame": 263829,
-      "duration_frames": 83250,
-      "overlap": false,
-      "utterance_id": "4059-3059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4059-3059.flac |",
-      "real_speaker_id": "4059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.096998977691175,
-      "end_time": 26.91336214530153,
-      "duration": 4.816363167610355,
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-      "utterance_id": "7498-99122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99122.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.355725312167767,
-      "end_time": 32.0,
-      "duration": 4.644274687832233,
-      "start_frame": 437691,
-      "duration_frames": 74308,
-      "overlap": false,
-      "utterance_id": "5622-44585",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-44585.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
-      "duration": 27.921746031746032,
-      "start_time": 1.6232964462207855
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_8.wav",
-      "duration": 0.32002267573696147,
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4059/cough/0119.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7498/laugh/0034.wav",
-      "duration": 1.24,
-      "start_time": 11.385937222367364,
-      "speaker_id": "7498"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7498/cough/0045.wav",
-      "duration": 1.36,
-      "start_time": 11.382209645163197,
-      "speaker_id": "7498"
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-    {
-      "event_class": "cough",
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-      "duration": 0.5455283659250627,
-      "start_time": 31.454471634074938,
-      "speaker_id": "5622"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049580.json b/conversations/conv_049580.json
deleted file mode 100644
index 46a49134e16824cbf45c9f6a831581acb07a251d..0000000000000000000000000000000000000000
--- a/conversations/conv_049580.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1556-139350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-139350.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.088606708112939,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-139350.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 59520
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3830-12535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12535.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.390687439071804,
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-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.094668736874162,
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-      "overlap": false,
-      "utterance_id": "3830-12530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12530.flac |",
-      "real_speaker_id": "3830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.493553266936452,
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-      "overlap": false,
-      "utterance_id": "1556-143307",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-143307.flac |",
-      "real_speaker_id": "1556",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.067040384375595,
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-      "duration": 1.932959615624405,
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-      "utterance_id": "1556-139350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1556-139350.flac |",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "duration": 0.5740866455542408,
-      "start_time": 29.303893009706258,
-      "speaker_id": "1556"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049596.json b/conversations/conv_049596.json
deleted file mode 100644
index bb5cec3a6dd047bf6e1f75713046c911b85df0a0..0000000000000000000000000000000000000000
--- a/conversations/conv_049596.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1845-145083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1845-145083.flac |",
-      "real_speaker_id": "1845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/454-134728.flac |",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1845",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "real_speaker_id": "454",
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.44,
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-}
\ No newline at end of file
diff --git a/conversations/conv_049607.json b/conversations/conv_049607.json
deleted file mode 100644
index d44fea926ea774ed110787d6ff3acb0d2b0a81c2..0000000000000000000000000000000000000000
--- a/conversations/conv_049607.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8138-293529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293529.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "639",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 136476
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.105100390531454,
-      "end_time": 32.0,
-      "duration": 1.8948996094685455,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/639-124526.flac |",
-      "real_speaker_id": "639",
-      "position_frames": 72825
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
-      "duration": 1.5559355452796346,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8138/laugh/0019.wav",
-      "duration": 1.56,
-      "start_time": 0,
-      "speaker_id": "8138"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7522/laugh/0004.wav",
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-      "speaker_id": "7522"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_049611.json b/conversations/conv_049611.json
deleted file mode 100644
index 93261a2b700ea727bc416f6395775f304382bcca..0000000000000000000000000000000000000000
--- a/conversations/conv_049611.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1264-129805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-129805.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.276635475692523,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121068.flac |",
-      "real_speaker_id": "55",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-129805.flac |",
-      "real_speaker_id": "1264",
-      "position_frames": 94145
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-129805.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3553-734.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
-      "real_speaker_id": "55",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.245533371058507,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1264-135033.flac |",
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-      "start_time": 28.84066834221055,
-      "speaker_id": "55"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049620.json b/conversations/conv_049620.json
deleted file mode 100644
index b74a3b0772ffd7e07ef9db6efbd929cbdd4c89d0..0000000000000000000000000000000000000000
--- a/conversations/conv_049620.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.520709842974362,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5810-8674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8674.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8689.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-100145.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 62480
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-      "real_speaker_id": "4800",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 24.798484509002094,
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-      "utterance_id": "5810-8689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5810-8689.flac |",
-      "real_speaker_id": "5810",
-      "position_frames": 63197
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.1,
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-      "duration": 0.92,
-      "start_time": 15.00384177810328,
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-      "speaker_id": "5810"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049626.json b/conversations/conv_049626.json
deleted file mode 100644
index 6b4d743b83bae87128b0004179a145f96b84fe5c..0000000000000000000000000000000000000000
--- a/conversations/conv_049626.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6097-293616",
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-      "position_frames": 0
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-    {
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-      "position_frames": 0
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049627.json b/conversations/conv_049627.json
deleted file mode 100644
index d418a71ae72a77c982875b127e2a9670a52ce7e5..0000000000000000000000000000000000000000
--- a/conversations/conv_049627.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.882458234554444,
-      "duration": 3.882458234554444,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5618-48831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48831.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.408027273778366,
-      "end_time": 8.099924307186258,
-      "duration": 3.691897033407892,
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-      "duration_frames": 59070,
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-      "utterance_id": "5618-48830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48830.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.306499946817599,
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-      "overlap": false,
-      "utterance_id": "8005-113331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113331.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.629130911597573,
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-      "duration": 3.7919230281801015,
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-      "duration_frames": 60670,
-      "overlap": false,
-      "utterance_id": "5618-48830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48830.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 59070
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.86172257781271,
-      "end_time": 23.602220091155246,
-      "duration": 4.740497513342537,
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-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.827812878699223,
-      "end_time": 29.346459963861452,
-      "duration": 4.518647085162228,
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-      "overlap": false,
-      "utterance_id": "5618-48830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48830.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 119740
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.360771115021016,
-      "end_time": 32.0,
-      "duration": 1.6392288849789836,
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-      "utterance_id": "4821-27466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4821-27466.flac |",
-      "real_speaker_id": "4821",
-      "position_frames": 75847
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5618/cough/0038.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4821/cough/0033.wav",
-      "duration": 0.9683309070363979,
-      "start_time": 31.031669092963604,
-      "speaker_id": "4821"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049631.json b/conversations/conv_049631.json
deleted file mode 100644
index 1157ff47058e620523c64f8f4875586b6f9d9e40..0000000000000000000000000000000000000000
--- a/conversations/conv_049631.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.224107229409855,
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-      "start_frame": 0,
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.346156485374764,
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-      "utterance_id": "3168-173565",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173565.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3242-67153.flac |",
-      "real_speaker_id": "3242",
-      "position_frames": 0
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 67585
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.10722606014422,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173565.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 68000
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.2731335290488,
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-      "overlap": true,
-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.508851361163305,
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-      "duration": 1.4911486388366946,
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3242/laugh/0036.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049636.json b/conversations/conv_049636.json
deleted file mode 100644
index adb0c5651a71218fc4ac95304e430194853f2d90..0000000000000000000000000000000000000000
--- a/conversations/conv_049636.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3675-187020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3675-187020.flac |",
-      "real_speaker_id": "3675",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "6288",
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-      "real_speaker_id": "57",
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-      "real_speaker_id": "3675",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121742.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121742.flac |",
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-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049646.json b/conversations/conv_049646.json
deleted file mode 100644
index e93f1bd8a15bb24026339c4099417514172e921a..0000000000000000000000000000000000000000
--- a/conversations/conv_049646.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
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-      "real_speaker_id": "6701",
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-      "utterance_id": "4595-45217",
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 8.316210949268225,
-      "speaker_id": "6701"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4595/laugh/0041.wav",
-      "duration": 1.56,
-      "start_time": 24.783653490048934,
-      "speaker_id": "4595"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049650.json b/conversations/conv_049650.json
deleted file mode 100644
index 54fca23a6beb67fc92c240b41ad0a8af1ae868f9..0000000000000000000000000000000000000000
--- a/conversations/conv_049650.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.123420168068046,
-      "duration": 5.123420168068046,
-      "start_frame": 0,
-      "duration_frames": 81974,
-      "overlap": false,
-      "utterance_id": "1815-143388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143388.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.320473183845781,
-      "end_time": 10.123219608832315,
-      "duration": 4.802746424986534,
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-      "duration_frames": 76843,
-      "overlap": false,
-      "utterance_id": "104-123365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-123365.flac |",
-      "real_speaker_id": "104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.806824211906083,
-      "end_time": 13.99813380839873,
-      "duration": 3.1913095964926477,
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-      "duration_frames": 51060,
-      "overlap": false,
-      "utterance_id": "1815-143381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143381.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.393604057439955,
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-      "duration": 3.940409023433459,
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-      "overlap": false,
-      "utterance_id": "1985-144468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.653672624503763,
-      "end_time": 23.157884354310468,
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-      "utterance_id": "1815-143382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1815-143382.flac |",
-      "real_speaker_id": "1815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.654239158187018,
-      "end_time": 29.232745001895708,
-      "duration": 5.57850584370869,
-      "start_frame": 378467,
-      "duration_frames": 89256,
-      "overlap": false,
-      "utterance_id": "104-123365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-123365.flac |",
-      "real_speaker_id": "104",
-      "position_frames": 76843
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.63189858679004,
-      "end_time": 32.0,
-      "duration": 2.36810141320996,
-      "start_frame": 474110,
-      "duration_frames": 37889,
-      "overlap": false,
-      "utterance_id": "1985-144468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 63046
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
-      "start_time": 1.070914218739775
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.871840988631,
-      "start_time": 9.487182766689129
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
-      "duration": 1.5006990821216681,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1815/laugh/0143.wav",
-      "duration": 1.2522714739926721,
-      "start_time": 0,
-      "speaker_id": "1815"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.1,
-      "start_time": 2.898646614252952,
-      "speaker_id": "1815"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/104/cough/0068.wav",
-      "duration": 1.2,
-      "start_time": 10.134030191247717,
-      "speaker_id": "104"
-    },
-    {
-      "event_class": "laugh",
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-      "speaker_id": "1815"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1815/cough/0117.wav",
-      "duration": 1.2,
-      "start_time": 14.077174716854296,
-      "speaker_id": "1815"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1985/laugh/0019.wav",
-      "duration": 0.6308848419208448,
-      "start_time": 13.70155037195002,
-      "speaker_id": "1985"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049661.json b/conversations/conv_049661.json
deleted file mode 100644
index 746902ec9c22c2a2a72d929b63c524cb96716409..0000000000000000000000000000000000000000
--- a/conversations/conv_049661.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.025841103619914,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1878-122453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122453.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.939176083450096,
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-      "real_speaker_id": "6735",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.346969715007424,
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-      "duration_frames": 61009,
-      "overlap": true,
-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.155381107666123,
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-      "overlap": false,
-      "utterance_id": "6735-284431",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-284431.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 97826
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.323948619185057,
-      "end_time": 28.827733712850822,
-      "duration": 5.503785093665765,
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-      "overlap": false,
-      "utterance_id": "1878-122453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122453.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 87575
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.182712439749768,
-      "end_time": 31.025841103619914,
-      "duration": 2.8431286638701465,
-      "start_frame": 450923,
-      "duration_frames": 45490,
-      "overlap": true,
-      "utterance_id": "6735-66412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6735-66412.flac |",
-      "real_speaker_id": "6735",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-      "speaker_id": "6735"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049666.json b/conversations/conv_049666.json
deleted file mode 100644
index 86375ce3e0f5e5d70eef6e2fe77aeb0b786dc0bf..0000000000000000000000000000000000000000
--- a/conversations/conv_049666.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.536520510769396,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31892.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/298-126790.flac |",
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-      "real_speaker_id": "3990",
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-      "real_speaker_id": "474",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_049670.json b/conversations/conv_049670.json
deleted file mode 100644
index fc97a8586faa989578a7fdcab6d7994f4329f339..0000000000000000000000000000000000000000
--- a/conversations/conv_049670.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
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-      "position_frames": 0
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6818-68772.flac |",
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-      "duration": 1.24,
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-      "speaker_id": "6818"
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_049677.json b/conversations/conv_049677.json
deleted file mode 100644
index 73d92715dd44248f064554cb898d398347403f98..0000000000000000000000000000000000000000
--- a/conversations/conv_049677.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5296-26680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
-      "real_speaker_id": "5296",
-      "position_frames": 0
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-      "start_time": 7.224419239531319,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51758.flac |",
-      "real_speaker_id": "5700",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5296-26680.flac |",
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-      "real_speaker_id": "1265",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "real_speaker_id": "5296",
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_049685.json b/conversations/conv_049685.json
deleted file mode 100644
index e23e97e7a4cc8387c843575db703d3287da39f8b..0000000000000000000000000000000000000000
--- a/conversations/conv_049685.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "1563",
-      "position_frames": 83741
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-    {
-      "segment_id": "seg0004",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_049689.json b/conversations/conv_049689.json
deleted file mode 100644
index 6c09d10a8e17df82ae982b3c9739baa51df2660f..0000000000000000000000000000000000000000
--- a/conversations/conv_049689.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_049693.json b/conversations/conv_049693.json
deleted file mode 100644
index c3098c15b58be2e5bd3ab660c903985acdff5e14..0000000000000000000000000000000000000000
--- a/conversations/conv_049693.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.603674407214267,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_049698.json b/conversations/conv_049698.json
deleted file mode 100644
index 406f49bca05d4a8f86bbdadf4149b0e875ff278f..0000000000000000000000000000000000000000
--- a/conversations/conv_049698.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130248.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130248.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
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-      "speaker_id": 1,
-      "start_time": 20.725491546667975,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/317-130248.flac |",
-      "real_speaker_id": "317",
-      "position_frames": 156277
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-      "utterance_id": "8389-120181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8389-120181.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_049703.json b/conversations/conv_049703.json
deleted file mode 100644
index 86be5ef4b2a51dff749a0db1e405ab3c995b7974..0000000000000000000000000000000000000000
--- a/conversations/conv_049703.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3864-185126.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "909",
-      "position_frames": 98702
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_049715.json b/conversations/conv_049715.json
deleted file mode 100644
index 6944beaab0c2d5acf9b8e3c1e976303f385889b5..0000000000000000000000000000000000000000
--- a/conversations/conv_049715.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.335538223051113,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "5299-34547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5299-34547.flac |",
-      "real_speaker_id": "5299",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "2085",
-      "position_frames": 111788
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_049718.json b/conversations/conv_049718.json
deleted file mode 100644
index cffe363a16eca9fecf229f77016b172a0fb8b561..0000000000000000000000000000000000000000
--- a/conversations/conv_049718.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "2733",
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-      "real_speaker_id": "4898",
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-      "real_speaker_id": "8867",
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-  "background_events": [],
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\ No newline at end of file
diff --git a/conversations/conv_049719.json b/conversations/conv_049719.json
deleted file mode 100644
index 1f96e8bb199533bfd86192d42dcad12794d8fb0f..0000000000000000000000000000000000000000
--- a/conversations/conv_049719.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "512",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88743.flac |",
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-      "speaker_id": 2,
-      "start_time": 22.01850739998652,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88743.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 54903
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7143-88749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88749.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 105650
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_049723.json b/conversations/conv_049723.json
deleted file mode 100644
index dbac29e18bc721f9fa3222e9dfde2c871bb37688..0000000000000000000000000000000000000000
--- a/conversations/conv_049723.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7828-105179.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049724.json b/conversations/conv_049724.json
deleted file mode 100644
index e0e87458ba499447746bf7bc5b9238035aecc664..0000000000000000000000000000000000000000
--- a/conversations/conv_049724.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049732.json b/conversations/conv_049732.json
deleted file mode 100644
index 161f60d94cc017f492f758b67ca483ff39289ca9..0000000000000000000000000000000000000000
--- a/conversations/conv_049732.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3962-722.flac |",
-      "real_speaker_id": "3962",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "utterance_id": "5141-26943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26943.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
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-      "speaker_id": "5141"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049735.json b/conversations/conv_049735.json
deleted file mode 100644
index 515d5efd1a7a0f4adcc36efda783d4f9a6bbbb0b..0000000000000000000000000000000000000000
--- a/conversations/conv_049735.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.1651234758679,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-52072.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.531881335407903,
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-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5545-66419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-66419.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 74357
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049739.json b/conversations/conv_049739.json
deleted file mode 100644
index 558661d1678e2b159f2f8e683c3e2cb355e4b728..0000000000000000000000000000000000000000
--- a/conversations/conv_049739.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132484.flac |",
-      "real_speaker_id": "2113",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-70753.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132485.flac |",
-      "real_speaker_id": "2113",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2113-132484.flac |",
-      "real_speaker_id": "2113",
-      "position_frames": 70763
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-      "speaker_id": 0,
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-      "utterance_id": "6574-70753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6574-70753.flac |",
-      "real_speaker_id": "6574",
-      "position_frames": 62338
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 1.12,
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-      "speaker_id": "6574"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049742.json b/conversations/conv_049742.json
deleted file mode 100644
index 5f944edd2d2650586b4fd1b042aa6a9a650f7030..0000000000000000000000000000000000000000
--- a/conversations/conv_049742.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.09122061619663,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6293539534840926,
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-      "overlap": false,
-      "utterance_id": "254-127705",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-127705.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2182-150130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-150130.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
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-      "utterance_id": "2494-156017",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156017.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "254",
-      "position_frames": 58069
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "254",
-      "position_frames": 0
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "254"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049754.json b/conversations/conv_049754.json
deleted file mode 100644
index e395d6d4ad81b2de3fa054b89853e3c4c0ae3a74..0000000000000000000000000000000000000000
--- a/conversations/conv_049754.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "2532",
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-      "speaker_id": "5186"
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\ No newline at end of file
diff --git a/conversations/conv_049758.json b/conversations/conv_049758.json
deleted file mode 100644
index 8a8ce035b7033114e95ce1e411ee7cee4486bfbf..0000000000000000000000000000000000000000
--- a/conversations/conv_049758.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_049762.json b/conversations/conv_049762.json
deleted file mode 100644
index 4e8505256dbd5155d434acc7e84a753948ced855..0000000000000000000000000000000000000000
--- a/conversations/conv_049762.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "position_frames": 72378
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_049763.json b/conversations/conv_049763.json
deleted file mode 100644
index e9695a932e5ec972a6f4e5be683bd4ef2b349c7e..0000000000000000000000000000000000000000
--- a/conversations/conv_049763.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "103",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-133256.flac |",
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-      "real_speaker_id": "7789",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1183-133256.flac |",
-      "real_speaker_id": "1183",
-      "position_frames": 92712
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-    {
-      "segment_id": "seg0004",
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_049765.json b/conversations/conv_049765.json
deleted file mode 100644
index c9a6360bfa0113ecab8f8401f3da5bd1e641a469..0000000000000000000000000000000000000000
--- a/conversations/conv_049765.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4563-26447.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_049773.json b/conversations/conv_049773.json
deleted file mode 100644
index 0cac988fc3d5aaf6f926213bf78f7fcbd8da0187..0000000000000000000000000000000000000000
--- a/conversations/conv_049773.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.32913225659418,
-  "num_speakers": 3,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
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-      "utterance_id": "7434-75939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7434-75939.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5350-205002.flac |",
-      "real_speaker_id": "5350",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_049774.json b/conversations/conv_049774.json
deleted file mode 100644
index 794d23b4d35d5f25cb95bfaf38d7dcdb793cb693..0000000000000000000000000000000000000000
--- a/conversations/conv_049774.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_049778.json b/conversations/conv_049778.json
deleted file mode 100644
index 4513ffe9efd45148093267521ca7688ec38d98c5..0000000000000000000000000000000000000000
--- a/conversations/conv_049778.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4434-73957.flac |",
-      "real_speaker_id": "4434",
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-      "segment_id": "seg0004",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049781.json b/conversations/conv_049781.json
deleted file mode 100644
index cb204cf99f7f5540ec76f5657d443b01007d5d6e..0000000000000000000000000000000000000000
--- a/conversations/conv_049781.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1544-140055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-140055.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-41167.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 0
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-      "real_speaker_id": "1544",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-136853.flac |",
-      "real_speaker_id": "265",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/laugh/0036.wav",
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\ No newline at end of file
diff --git a/conversations/conv_049797.json b/conversations/conv_049797.json
deleted file mode 100644
index 287ebc8eb3f89e151a62a51011525d5194a0d4e6..0000000000000000000000000000000000000000
--- a/conversations/conv_049797.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.31765860635288,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
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-      "real_speaker_id": "6549",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-270777.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.954483119779233,
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-      "duration": 4.363175486573644,
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-      "overlap": false,
-      "utterance_id": "7561-258992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258992.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_10.wav",
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-      "speaker_id": "7561"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049806.json b/conversations/conv_049806.json
deleted file mode 100644
index eec77c4b7da727f4451caee70eedcfe34b1dfe8e..0000000000000000000000000000000000000000
--- a/conversations/conv_049806.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125878.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 0
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-      "real_speaker_id": "8699",
-      "position_frames": 83658
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125879.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7113-86041.flac |",
-      "real_speaker_id": "7113",
-      "position_frames": 74237
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
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-    {
-      "event_class": "cough",
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-      "start_time": 28.384569695165446,
-      "speaker_id": "428"
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049810.json b/conversations/conv_049810.json
deleted file mode 100644
index 459113beab3da6dcbca4f09275e09e98692e30b2..0000000000000000000000000000000000000000
--- a/conversations/conv_049810.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "3436-172162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172162.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5583-41259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41259.flac |",
-      "real_speaker_id": "5583",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 68091
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5583-41259.flac |",
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-      "position_frames": 77972
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-    {
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-      "utterance_id": "3436-172171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 156354
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-    {
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-      "start_time": 29.161055478871422,
-      "speaker_id": "5583"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049826.json b/conversations/conv_049826.json
deleted file mode 100644
index 64d1b215a0b1e27f35f3184082c16cd2bde8a1a4..0000000000000000000000000000000000000000
--- a/conversations/conv_049826.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.690092274558875,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106733.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106733.flac |",
-      "real_speaker_id": "7713",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-61422.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106738.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.22622362385876,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5139-61422.flac |",
-      "real_speaker_id": "5139",
-      "position_frames": 73926
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_8.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/laugh/0129.wav",
-      "duration": 1.12,
-      "start_time": 1.122681258001639,
-      "speaker_id": "8291"
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-      "event_class": "cough",
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-      "speaker_id": "5139"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049827.json b/conversations/conv_049827.json
deleted file mode 100644
index 47ae9d4c7a3dd033fde440f75ab6f291ef9f4ee4..0000000000000000000000000000000000000000
--- a/conversations/conv_049827.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.813238953314492,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.137792071883769,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2234-64139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64139.flac |",
-      "real_speaker_id": "2234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.003998199468586,
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-      "duration": 4.170937207613987,
-      "start_frame": 112063,
-      "duration_frames": 66734,
-      "overlap": false,
-      "utterance_id": "956-157879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.812663348495866,
-      "end_time": 18.811384284547465,
-      "duration": 6.998720936051599,
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-      "duration_frames": 111979,
-      "overlap": false,
-      "utterance_id": "2234-64159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64159.flac |",
-      "real_speaker_id": "2234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.839482861430206,
-      "end_time": 25.252677684448056,
-      "duration": 6.41319482301785,
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-      "overlap": true,
-      "utterance_id": "2234-64139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64139.flac |",
-      "real_speaker_id": "2234",
-      "position_frames": 98204
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.48669985481584,
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-      "utterance_id": "956-127932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/956/cough/0033.wav",
-      "duration": 1.3044610031484833,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/956/laugh/0098.wav",
-      "duration": 1.0,
-      "start_time": 24.35125119274837,
-      "speaker_id": "956"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049830.json b/conversations/conv_049830.json
deleted file mode 100644
index d9a85a536dec83a711fd360d4e821f564bb7f4e7..0000000000000000000000000000000000000000
--- a/conversations/conv_049830.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.17934036382014,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7294-86026.flac |",
-      "real_speaker_id": "7294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.171999590100372,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1241.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7294-86026.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-11550.flac |",
-      "real_speaker_id": "4160",
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-      "real_speaker_id": "7294",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "utterance_id": "103-1240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/103-1240.flac |",
-      "real_speaker_id": "103",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049837.json b/conversations/conv_049837.json
deleted file mode 100644
index 68277d14b4e5e0b958ab2f6c5a10296d86087ab6..0000000000000000000000000000000000000000
--- a/conversations/conv_049837.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5688-15787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-15787.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1296-134434.flac |",
-      "real_speaker_id": "1296",
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-      "segment_id": "seg0002",
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-      "utterance_id": "4948-28015",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4948-28015.flac |",
-      "real_speaker_id": "4948",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration_frames": 111886,
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-      "utterance_id": "5688-15787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-15787.flac |",
-      "real_speaker_id": "5688",
-      "position_frames": 72150
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.661602802591528,
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-      "real_speaker_id": "1296",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5688-41232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-41232.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_0.wav",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_049847.json b/conversations/conv_049847.json
deleted file mode 100644
index f5cf54099a62ead231fec9f189c4b499fd46a754..0000000000000000000000000000000000000000
--- a/conversations/conv_049847.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8259-276906",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8259-276906.flac |",
-      "real_speaker_id": "8259",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6509-67147.flac |",
-      "real_speaker_id": "6509",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_049851.json b/conversations/conv_049851.json
deleted file mode 100644
index 5e5e3da8d6ea35ac192bea5164cdaf46717eb34c..0000000000000000000000000000000000000000
--- a/conversations/conv_049851.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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\ No newline at end of file
diff --git a/conversations/conv_049867.json b/conversations/conv_049867.json
deleted file mode 100644
index 48b2d97d6e00cf61e787332b816d0a1acc7defee..0000000000000000000000000000000000000000
--- a/conversations/conv_049867.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_049871.json b/conversations/conv_049871.json
deleted file mode 100644
index 64014413c0c0a9071350e24437f47088abbdbabd..0000000000000000000000000000000000000000
--- a/conversations/conv_049871.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_049884.json b/conversations/conv_049884.json
deleted file mode 100644
index cedc9cdabae1e5f094338e0d53235c7ef7a5bd66..0000000000000000000000000000000000000000
--- a/conversations/conv_049884.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": "968"
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-      "speaker_id": "968"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049888.json b/conversations/conv_049888.json
deleted file mode 100644
index 47e3026600adc0b52110719f15bea580763aff11..0000000000000000000000000000000000000000
--- a/conversations/conv_049888.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "1614-141486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-141486.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-34596.flac |",
-      "real_speaker_id": "6610",
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-      "utterance_id": "6610-34596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-34596.flac |",
-      "real_speaker_id": "6610",
-      "position_frames": 98758
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-      "speaker_id": 1,
-      "start_time": 17.292336426467422,
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-      "real_speaker_id": "6610",
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-      "speaker_id": 0,
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-      "real_speaker_id": "1614",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1614-13759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-13759.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_049892.json b/conversations/conv_049892.json
deleted file mode 100644
index 5158d6de945841c9d3ad24952c117fc74d485419..0000000000000000000000000000000000000000
--- a/conversations/conv_049892.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.357600114963084,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
-      "real_speaker_id": "421",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6918-61317.flac |",
-      "real_speaker_id": "6918",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "position_frames": 87420
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.44,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/421/laugh/0029.wav",
-      "duration": 0.9870957630286201,
-      "start_time": 26.580567249605348,
-      "speaker_id": "421"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049902.json b/conversations/conv_049902.json
deleted file mode 100644
index 72b17f27d157a76d4dbd5e11aa1b9041c6514339..0000000000000000000000000000000000000000
--- a/conversations/conv_049902.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.226384472715925,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1547-130184",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1547-130184.flac |",
-      "real_speaker_id": "1547",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1547",
-      "position_frames": 90381
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 80413
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "1547",
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "8413-284515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8413-284515.flac |",
-      "real_speaker_id": "8413",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049909.json b/conversations/conv_049909.json
deleted file mode 100644
index 52008e5f370d630b05675f2267f17a09221184ff..0000000000000000000000000000000000000000
--- a/conversations/conv_049909.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1680-142282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1680-142282.flac |",
-      "real_speaker_id": "1680",
-      "position_frames": 0
-    },
-    {
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\ No newline at end of file
diff --git a/conversations/conv_049914.json b/conversations/conv_049914.json
deleted file mode 100644
index 372e787f302b24c35749a7eb76f7a54bbe89bcfc..0000000000000000000000000000000000000000
--- a/conversations/conv_049914.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.30738307223042,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120457.flac |",
-      "real_speaker_id": "8307",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120457.flac |",
-      "real_speaker_id": "8307",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138115.flac |",
-      "real_speaker_id": "1336",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_049918.json b/conversations/conv_049918.json
deleted file mode 100644
index 4b686f8cffd1b61db6c2e4db438f6d9b3429f73a..0000000000000000000000000000000000000000
--- a/conversations/conv_049918.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "2895",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049922.json b/conversations/conv_049922.json
deleted file mode 100644
index dc84afdca4c8add26b3416fd4c421c2e2b36f8c0..0000000000000000000000000000000000000000
--- a/conversations/conv_049922.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1171-134968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-134968.flac |",
-      "real_speaker_id": "1171",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "duration": 1.36,
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-      "speaker_id": "1171"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_049934.json b/conversations/conv_049934.json
deleted file mode 100644
index 34067d7a96e4607ed865b1913a47eed46f9bca9e..0000000000000000000000000000000000000000
--- a/conversations/conv_049934.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.39390101736214,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "2671-157948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157948.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131041.flac |",
-      "real_speaker_id": "909",
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-      "segment_id": "seg0002",
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-      "start_time": 11.630696250373333,
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-      "utterance_id": "1367-291967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1367-291967.flac |",
-      "real_speaker_id": "1367",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "2671",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.596447686131164,
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-      "utterance_id": "2671-157948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157948.flac |",
-      "real_speaker_id": "2671",
-      "position_frames": 79131
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131044.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_049938.json b/conversations/conv_049938.json
deleted file mode 100644
index 5b8f26cca6494e93c913ec9797f2591b048a9a47..0000000000000000000000000000000000000000
--- a/conversations/conv_049938.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.87253081033548,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
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-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/432755.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_049943.json b/conversations/conv_049943.json
deleted file mode 100644
index fb4017f9d42603047112006cfa34d34665eeb434..0000000000000000000000000000000000000000
--- a/conversations/conv_049943.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "7190-90542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90542.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90543.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "7190-90542",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90542.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 89855
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "1633-180292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-180292.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.507756755476784,
-      "end_time": 32.0,
-      "duration": 2.492243244523216,
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-      "utterance_id": "7190-90543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90543.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 99248
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "cough",
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-      "speaker_id": "7190"
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-}
\ No newline at end of file
diff --git a/conversations/conv_049948.json b/conversations/conv_049948.json
deleted file mode 100644
index 3d3e78fd1e6979bbe58b15ce9abcaa0927ebd02b..0000000000000000000000000000000000000000
--- a/conversations/conv_049948.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "845-130982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.383743381915705,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
-      "real_speaker_id": "845",
-      "position_frames": 99077
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4145-104606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4145-104606.flac |",
-      "real_speaker_id": "4145",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 17.18601284112138,
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-      "real_speaker_id": "6509",
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-      "segment_id": "seg0004",
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-      "position_frames": 158199
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_049955.json b/conversations/conv_049955.json
deleted file mode 100644
index 003a6b3a06bfad0af54b2160b66f62f034e51b90..0000000000000000000000000000000000000000
--- a/conversations/conv_049955.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.249403188824854,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.763065750421871,
-      "duration": 6.763065750421871,
-      "start_frame": 0,
-      "duration_frames": 108209,
-      "overlap": false,
-      "utterance_id": "4806-26895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26895.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.355937766976754,
-      "end_time": 13.605139482976533,
-      "duration": 6.249201715999778,
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-      "utterance_id": "8180-274725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274725.flac |",
-      "real_speaker_id": "8180",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.39203817844135,
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-      "utterance_id": "5054-18527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-18527.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 20.34712173860257,
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-      "utterance_id": "8180-274723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274723.flac |",
-      "real_speaker_id": "8180",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.89745710004538,
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-      "duration": 3.0163544175716996,
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-      "duration_frames": 48261,
-      "overlap": false,
-      "utterance_id": "5054-18527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-18527.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 86187
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.333864064795293,
-      "end_time": 31.249403188824854,
-      "duration": 3.9155391240295607,
-      "start_frame": 437341,
-      "duration_frames": 62648,
-      "overlap": true,
-      "utterance_id": "4806-26895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26895.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 108209
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_7.wav",
-      "duration": 0.32034013605442174,
-      "start_time": 30.664947582983206
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4806/laugh/0037.wav",
-      "duration": 1.3,
-      "start_time": 0,
-      "speaker_id": "4806"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8180/cough/0020.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 18.798655947241006,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8180/cough/0012.wav",
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-      "start_time": 19.190420204530888,
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-    {
-      "event_class": "cough",
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-      "duration": 0.96,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4806/laugh/0090.wav",
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-      "start_time": 29.81574326357674,
-      "speaker_id": "4806"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049959.json b/conversations/conv_049959.json
deleted file mode 100644
index 6e7a536cbc2c87b1453f1e69941bccd8d5a44161..0000000000000000000000000000000000000000
--- a/conversations/conv_049959.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.252821130032381,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125349.flac |",
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-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 79622
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "542-125349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125349.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 99194
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.669163313524063,
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-      "duration": 6.162182528594108,
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-      "overlap": false,
-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 138014
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.14909051486127,
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-      "duration": 3.850909485138729,
-      "start_frame": 450385,
-      "duration_frames": 61614,
-      "overlap": false,
-      "utterance_id": "8975-270782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8975-270782.flac |",
-      "real_speaker_id": "8975",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 21.024774061864814
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/576/laugh/0009.wav",
-      "duration": 1.5,
-      "start_time": 20.15168556016524,
-      "speaker_id": "576"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8975/laugh/0099.wav",
-      "duration": 0.8890306723404184,
-      "start_time": 31.05666455319954,
-      "speaker_id": "8975"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049962.json b/conversations/conv_049962.json
deleted file mode 100644
index d9a1603c2dd559a97bdc47cf8f4a72354ee5ce83..0000000000000000000000000000000000000000
--- a/conversations/conv_049962.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7498-99156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7498-99156.flac |",
-      "real_speaker_id": "7498",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-268295.flac |",
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7498",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "8625",
-      "position_frames": 60832
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "8625-295957",
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-      "real_speaker_id": "8625",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049963.json b/conversations/conv_049963.json
deleted file mode 100644
index 91c4520aa8a0e865adf78408cb78050c7863b70b..0000000000000000000000000000000000000000
--- a/conversations/conv_049963.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.425344565940872,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "5400-34479",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-34479.flac |",
-      "real_speaker_id": "5400",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5400-34479.flac |",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5796-49593.flac |",
-      "real_speaker_id": "5796",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_1.wav",
-      "duration": 1.397437641723356,
-      "start_time": 14.461527060292703
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5400/laugh/0083.wav",
-      "duration": 0.542279758433033,
-      "start_time": 4.950253872931115,
-      "speaker_id": "5400"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5400/laugh/0087.wav",
-      "duration": 1.4,
-      "start_time": 7.489238292464508,
-      "speaker_id": "5400"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049972.json b/conversations/conv_049972.json
deleted file mode 100644
index 0608590a0cede240781c638ba5c555b7c0a2617d..0000000000000000000000000000000000000000
--- a/conversations/conv_049972.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.098721505040284,
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-      "overlap": false,
-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.3671114338455785,
-      "end_time": 10.364946281885983,
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-      "utterance_id": "2582-155972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155972.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.9817524532009,
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-      "duration": 3.30947319658749,
-      "start_frame": 159708,
-      "duration_frames": 52951,
-      "overlap": true,
-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 81579
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.946783581731616,
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-      "overlap": false,
-      "utterance_id": "8295-296107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-296107.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.9682768563422,
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-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 134530
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.85886973367038,
-      "end_time": 30.08749370026707,
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-      "utterance_id": "8295-296107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8295-296107.flac |",
-      "real_speaker_id": "8295",
-      "position_frames": 71496
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.358258914666415,
-      "end_time": 32.0,
-      "duration": 1.6417410853335852,
-      "start_frame": 485732,
-      "duration_frames": 26267,
-      "overlap": false,
-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 201295
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
-      "duration": 15.038551915015672,
-      "start_time": 2.3159922986650012
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
-      "duration": 2.908417389932054,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.016496847857339,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8334/laugh/0120.wav",
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-      "start_time": 2.512181040168148,
-      "speaker_id": "8334"
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-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 13.434591261678863,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8334/cough/0093.wav",
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-      "start_time": 9.621121528517103,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8334/laugh/0136.wav",
-      "duration": 1.56,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8334/laugh/0102.wav",
-      "duration": 0.5156608131420927,
-      "start_time": 29.74313300241932,
-      "speaker_id": "8334"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049975.json b/conversations/conv_049975.json
deleted file mode 100644
index 8d8db96d54671d20a04c380da73fc8be58aeef4c..0000000000000000000000000000000000000000
--- a/conversations/conv_049975.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.465452507050177,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.118534749840998,
-      "duration": 6.118534749840998,
-      "start_frame": 0,
-      "duration_frames": 97896,
-      "overlap": false,
-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.663514772175164,
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-      "overlap": false,
-      "utterance_id": "166-352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.380773681112219,
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-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 97896
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.9720682106584,
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-      "utterance_id": "166-352",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-352.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 78241
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.366549543290212,
-      "end_time": 28.411715825058536,
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-      "duration_frames": 64722,
-      "overlap": false,
-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 181845
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.08865374021937,
-      "end_time": 31.465452507050177,
-      "duration": 3.376798766830806,
-      "start_frame": 449418,
-      "duration_frames": 54028,
-      "overlap": true,
-      "utterance_id": "166-126302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/166-126302.flac |",
-      "real_speaker_id": "166",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-      "start_time": 3.450189800829338
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-      "start_time": 14.17411863651972
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.561656364156547,
-      "start_time": 11.259066676068008
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5808/laugh/0082.wav",
-      "duration": 1.28,
-      "start_time": 3.0196706990479507,
-      "speaker_id": "5808"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/166/laugh/0073.wav",
-      "duration": 1.2,
-      "start_time": 5.4154034833352975,
-      "speaker_id": "166"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/166/laugh/0031.wav",
-      "duration": 0.84,
-      "start_time": 31.16,
-      "speaker_id": "166"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049979.json b/conversations/conv_049979.json
deleted file mode 100644
index c28c4a85834cfb63b6f9dcd25c26d7ad94fac735..0000000000000000000000000000000000000000
--- a/conversations/conv_049979.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.934865828452091,
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-      "overlap": false,
-      "utterance_id": "3374-298032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3374-298032.flac |",
-      "real_speaker_id": "3374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.1059198254356986,
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-      "utterance_id": "3374-298026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3374-298026.flac |",
-      "real_speaker_id": "3374",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "8675-283202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-283202.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.689553434165234,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3374-298032.flac |",
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-      "position_frames": 62957
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 25.771070125024703,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 75513
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.740884875670737,
-      "end_time": 32.0,
-      "duration": 2.259115124329263,
-      "start_frame": 475854,
-      "duration_frames": 36145,
-      "overlap": false,
-      "utterance_id": "8675-295195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-295195.flac |",
-      "real_speaker_id": "8675",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "start_time": 18.77242993092542,
-      "speaker_id": "6323"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8675/laugh/0109.wav",
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-      "start_time": 30.20931812096859,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8675/cough/0021.wav",
-      "duration": 1.2400894602741956,
-      "start_time": 30.759910539725805,
-      "speaker_id": "8675"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049980.json b/conversations/conv_049980.json
deleted file mode 100644
index 41afa6d4e1b011f3d56b851e1918715ad8141af5..0000000000000000000000000000000000000000
--- a/conversations/conv_049980.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.559737010191732,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 5.054714758735687,
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-      "utterance_id": "203-132073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132073.flac |",
-      "real_speaker_id": "203",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "6072",
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-      "segment_id": "seg0002",
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-      "start_time": 10.944707762441496,
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-      "utterance_id": "887-123290",
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-      "real_speaker_id": "887",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-126577.flac |",
-      "real_speaker_id": "203",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6072-67782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6072-67782.flac |",
-      "real_speaker_id": "6072",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132073.flac |",
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-      "position_frames": 80875
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_049996.json b/conversations/conv_049996.json
deleted file mode 100644
index 3f1d4c57108d8c55822d8aeeba374a6ecc69d988..0000000000000000000000000000000000000000
--- a/conversations/conv_049996.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "5012-80192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-80192.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.1500887010753935,
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-      "utterance_id": "5012-31089",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31089.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 15.332172246301369,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4179-20567.flac |",
-      "real_speaker_id": "4179",
-      "position_frames": 86226
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6590-64285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6590-64285.flac |",
-      "real_speaker_id": "6590",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "4179-20593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4179-20593.flac |",
-      "real_speaker_id": "4179",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_050001.json b/conversations/conv_050001.json
deleted file mode 100644
index 452339f093e90bb5e23454b9151710dd9877cd60..0000000000000000000000000000000000000000
--- a/conversations/conv_050001.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8498-287358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8498-287358.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8498-287359",
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-      "real_speaker_id": "8498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "end_time": 32.0,
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-      "start_frame": 463290,
-      "duration_frames": 48709,
-      "overlap": false,
-      "utterance_id": "8006-112592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8006-112592.flac |",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "cough",
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-      "speaker_id": "8006"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050006.json b/conversations/conv_050006.json
deleted file mode 100644
index f40d20c9033c04741402b2137b4d9c2143845e65..0000000000000000000000000000000000000000
--- a/conversations/conv_050006.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7301-92166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7301-92166.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7301-92166.flac |",
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-    {
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-    {
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4396/laugh/0097.wav",
-      "duration": 1.12,
-      "start_time": 29.906502029610913,
-      "speaker_id": "4396"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050010.json b/conversations/conv_050010.json
deleted file mode 100644
index 37b97d453008f87eadcee716a635551a3b2e4076..0000000000000000000000000000000000000000
--- a/conversations/conv_050010.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.62159868899899,
-      "duration": 6.62159868899899,
-      "start_frame": 0,
-      "duration_frames": 105945,
-      "overlap": false,
-      "utterance_id": "3879-174923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-174923.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.6973797829710175,
-      "end_time": 12.823343719905392,
-      "duration": 5.125963936934375,
-      "start_frame": 123158,
-      "duration_frames": 82015,
-      "overlap": false,
-      "utterance_id": "2039-141208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141208.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.93564554734381,
-      "end_time": 18.889414563070453,
-      "duration": 4.9537690157266425,
-      "start_frame": 222970,
-      "duration_frames": 79260,
-      "overlap": false,
-      "utterance_id": "274-121392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121392.flac |",
-      "real_speaker_id": "274",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.442212025821785,
-      "end_time": 24.126816227255922,
-      "duration": 4.684604201434136,
-      "start_frame": 311075,
-      "duration_frames": 74953,
-      "overlap": false,
-      "utterance_id": "3879-174923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-174923.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 105945
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.652877894369187,
-      "end_time": 30.818995893040615,
-      "duration": 6.166117998671428,
-      "start_frame": 394446,
-      "duration_frames": 98657,
-      "overlap": false,
-      "utterance_id": "274-121392",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121392.flac |",
-      "real_speaker_id": "274",
-      "position_frames": 79260
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.071371489546713,
-      "end_time": 32.0,
-      "duration": 0.9286285104532865,
-      "start_frame": 497141,
-      "duration_frames": 14858,
-      "overlap": false,
-      "utterance_id": "2039-141209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 19.991838913140285,
-      "start_time": 1.553789554982711
-    }
-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
-      "duration": 1.0549719169616765,
-      "start_time": 2.5151867286546365
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3879/laugh/0031.wav",
-      "duration": 0.743524465359226,
-      "start_time": 0,
-      "speaker_id": "3879"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3879/cough/0037.wav",
-      "duration": 1.0975470242240262,
-      "start_time": 0,
-      "speaker_id": "3879"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2039/laugh/0108.wav",
-      "duration": 1.4,
-      "start_time": 12.870065817370495,
-      "speaker_id": "2039"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2039/cough/0072.wav",
-      "duration": 0.92,
-      "start_time": 12.880382580317228,
-      "speaker_id": "2039"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/274/laugh/0082.wav",
-      "duration": 0.9320623775175554,
-      "start_time": 17.443877765909242,
-      "speaker_id": "274"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3879/laugh/0092.wav",
-      "duration": 1.12,
-      "start_time": 24.14710439352902,
-      "speaker_id": "3879"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050017.json b/conversations/conv_050017.json
deleted file mode 100644
index 15aa206006c83b1e749e50087d2b0334a26b4006..0000000000000000000000000000000000000000
--- a/conversations/conv_050017.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3973768579768717,
-      "duration": 3.3973768579768717,
-      "start_frame": 0,
-      "duration_frames": 54358,
-      "overlap": false,
-      "utterance_id": "4910-27683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-27683.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.595519540009337,
-      "end_time": 8.48173868447564,
-      "duration": 4.886219144466304,
-      "start_frame": 57528,
-      "duration_frames": 78179,
-      "overlap": false,
-      "utterance_id": "5756-305214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-305214.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.612108644189547,
-      "end_time": 14.577835778479958,
-      "duration": 5.965727134290411,
-      "start_frame": 137793,
-      "duration_frames": 95451,
-      "overlap": false,
-      "utterance_id": "4910-14124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-14124.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.522775628970074,
-      "end_time": 19.63373000829491,
-      "duration": 4.110954379324838,
-      "start_frame": 248364,
-      "duration_frames": 65775,
-      "overlap": false,
-      "utterance_id": "8587-295524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295524.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.983196203552914,
-      "end_time": 23.849156034601286,
-      "duration": 3.865959831048373,
-      "start_frame": 319731,
-      "duration_frames": 61855,
-      "overlap": false,
-      "utterance_id": "8587-295525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295525.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.449778656029004,
-      "end_time": 27.836950372809902,
-      "duration": 3.3871717167808986,
-      "start_frame": 391196,
-      "duration_frames": 54194,
-      "overlap": false,
-      "utterance_id": "4910-14125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4910-14125.flac |",
-      "real_speaker_id": "4910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.22680885978908,
-      "end_time": 32.0,
-      "duration": 3.773191140210919,
-      "start_frame": 451628,
-      "duration_frames": 60371,
-      "overlap": false,
-      "utterance_id": "5756-80689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5756-80689.flac |",
-      "real_speaker_id": "5756",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
-      "duration": 14.792445102469983,
-      "start_time": 10.741164008769944
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.3074672146966586,
-      "start_time": 27.51680577739092
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_1.wav",
-      "duration": 2.3350339587230624,
-      "start_time": 0.1836805886066851
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4910/cough/0115.wav",
-      "duration": 1.1,
-      "start_time": 1.882602707095958,
-      "speaker_id": "4910"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8587/laugh/0151.wav",
-      "duration": 1.1805607444012556,
-      "start_time": 19.792214204216396,
-      "speaker_id": "8587"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4910/laugh/0089.wav",
-      "duration": 0.8817459491435056,
-      "start_time": 23.346913883892913,
-      "speaker_id": "4910"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050021.json b/conversations/conv_050021.json
deleted file mode 100644
index 539916a9c11dc5393f9b9a8998430c57218ef226..0000000000000000000000000000000000000000
--- a/conversations/conv_050021.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.496341438412238,
-      "duration": 4.496341438412238,
-      "start_frame": 0,
-      "duration_frames": 71941,
-      "overlap": false,
-      "utterance_id": "1789-142896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-142896.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.125822798738944,
-      "end_time": 10.168973676148067,
-      "duration": 5.043150877409123,
-      "start_frame": 82013,
-      "duration_frames": 80690,
-      "overlap": true,
-      "utterance_id": "5975-54006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
-      "real_speaker_id": "5975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.321199299758067,
-      "end_time": 17.19991458189299,
-      "duration": 5.878715282134921,
-      "start_frame": 181139,
-      "duration_frames": 94059,
-      "overlap": false,
-      "utterance_id": "1789-142896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-142896.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 71941
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.641092247894413,
-      "end_time": 20.912398884687057,
-      "duration": 3.2713066367926436,
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-      "duration_frames": 52340,
-      "overlap": false,
-      "utterance_id": "5975-54006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
-      "real_speaker_id": "5975",
-      "position_frames": 80690
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.482066646066208,
-      "end_time": 25.621019930838678,
-      "duration": 4.138953284772469,
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-      "duration_frames": 66223,
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-      "utterance_id": "1789-137618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-137618.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.30263685353768,
-      "end_time": 32.0,
-      "duration": 5.697363146462319,
-      "start_frame": 420842,
-      "duration_frames": 91157,
-      "overlap": false,
-      "utterance_id": "2275-150140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2275-150140.flac |",
-      "real_speaker_id": "2275",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 2.2330385487528344,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.9176626337863318,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1789/laugh/0022.wav",
-      "duration": 1.18,
-      "start_time": 0,
-      "speaker_id": "1789"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5975/laugh/0106.wav",
-      "duration": 1.0472883148337289,
-      "start_time": 21.000143973330992,
-      "speaker_id": "5975"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1789/laugh/0112.wav",
-      "duration": 0.5703784645447196,
-      "start_time": 25.74354683591879,
-      "speaker_id": "1789"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050037.json b/conversations/conv_050037.json
deleted file mode 100644
index 684ac0f25dd9e3d96e94b34129cfca302c671b21..0000000000000000000000000000000000000000
--- a/conversations/conv_050037.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.469903230499707,
-      "duration": 6.469903230499707,
-      "start_frame": 0,
-      "duration_frames": 103518,
-      "overlap": false,
-      "utterance_id": "1734-142311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.580043051780497,
-      "end_time": 12.187200374016276,
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-      "start_frame": 105280,
-      "duration_frames": 89714,
-      "overlap": false,
-      "utterance_id": "2167-149881",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2167-149881.flac |",
-      "real_speaker_id": "2167",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.8132640671399,
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-      "duration_frames": 62231,
-      "overlap": false,
-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.016117168101125,
-      "end_time": 23.027888670946872,
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-      "duration_frames": 80188,
-      "overlap": false,
-      "utterance_id": "1734-142311",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1734-142311.flac |",
-      "real_speaker_id": "1734",
-      "position_frames": 103518
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2167",
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-      "speaker_id": "2167"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050040.json b/conversations/conv_050040.json
deleted file mode 100644
index d17b9aff2e7fca26d2798822c0631faf859afc2f..0000000000000000000000000000000000000000
--- a/conversations/conv_050040.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.700964736039296,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-1042.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-133254.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 15.637067098115986,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4744-4158.flac |",
-      "real_speaker_id": "4744",
-      "position_frames": 49077
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1107-1042",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1107-1042.flac |",
-      "real_speaker_id": "1107",
-      "position_frames": 90971
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7780-274562.flac |",
-      "real_speaker_id": "7780",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_050047.json b/conversations/conv_050047.json
deleted file mode 100644
index e4e8853bd497bd1333cfbb1e1747336f877b58b3..0000000000000000000000000000000000000000
--- a/conversations/conv_050047.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "5154",
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-      "real_speaker_id": "7265",
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\ No newline at end of file
diff --git a/conversations/conv_050051.json b/conversations/conv_050051.json
deleted file mode 100644
index 85c3278b8068b34e26a563400241b03a6bee6d69..0000000000000000000000000000000000000000
--- a/conversations/conv_050051.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3845-8924.flac |",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_050056.json b/conversations/conv_050056.json
deleted file mode 100644
index 9ce33f6592b898e28de1891e027641882f61e5c7..0000000000000000000000000000000000000000
--- a/conversations/conv_050056.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.697946683062156,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122828.flac |",
-      "real_speaker_id": "16",
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-      "utterance_id": "16-122828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122828.flac |",
-      "real_speaker_id": "16",
-      "position_frames": 183236
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.7599353495604,
-      "end_time": 31.697946683062156,
-      "duration": 1.9380113335017555,
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-      "utterance_id": "4899-32639",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32639.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220019.wav",
-      "duration": 0.6206349206349207,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/16/cough/0000.wav",
-      "duration": 0.7077170838223388,
-      "start_time": 5.739391388090365,
-      "speaker_id": "16"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4899/cough/0114.wav",
-      "duration": 1.2824767272220459,
-      "start_time": 28.44230420485366,
-      "speaker_id": "4899"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050057.json b/conversations/conv_050057.json
deleted file mode 100644
index ea5f56a02a18f885ed88bf2a552c6cc987fd0275..0000000000000000000000000000000000000000
--- a/conversations/conv_050057.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.573926701811163,
-      "duration": 5.573926701811163,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1913-143521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-143521.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.715588627488485,
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-      "utterance_id": "644-162691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/644-162691.flac |",
-      "real_speaker_id": "644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.993180722192236,
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-      "duration_frames": 81031,
-      "overlap": false,
-      "utterance_id": "1913-147989",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-147989.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.79828347978956,
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-      "duration_frames": 81725,
-      "overlap": false,
-      "utterance_id": "644-162690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/644-162690.flac |",
-      "real_speaker_id": "644",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.459807271806177,
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-      "duration_frames": 93155,
-      "overlap": false,
-      "utterance_id": "1913-143521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-143521.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 89182
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.247097943775547,
-      "end_time": 32.0,
-      "duration": 3.7529020562244533,
-      "start_frame": 451953,
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-      "overlap": false,
-      "utterance_id": "644-163239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/644-163239.flac |",
-      "real_speaker_id": "644",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/644/laugh/0080.wav",
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-    {
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-      "duration": 1.04,
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-      "speaker_id": "1913"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.42,
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-      "speaker_id": "644"
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-    {
-      "event_class": "cough",
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-      "start_time": 31.58350364258011,
-      "speaker_id": "644"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050060.json b/conversations/conv_050060.json
deleted file mode 100644
index c27a4d27ccb732e8401a65194a82b580489594e8..0000000000000000000000000000000000000000
--- a/conversations/conv_050060.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-59283.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.100118796288426,
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-      "duration_frames": 82635,
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-      "utterance_id": "8838-298545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8838-298545.flac |",
-      "real_speaker_id": "8838",
-      "position_frames": 72557
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.408481922740947,
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-      "utterance_id": "5906-52158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-52158.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.06010054098755,
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-      "overlap": false,
-      "utterance_id": "409-124990",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/409-124990.flac |",
-      "real_speaker_id": "409",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.13145421671502,
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-      "overlap": false,
-      "utterance_id": "5906-52158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5906-52158.flac |",
-      "real_speaker_id": "5906",
-      "position_frames": 88307
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5906/laugh/0033.wav",
-      "duration": 1.4469189202565294,
-      "start_time": 27.546088491873135,
-      "speaker_id": "5906"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050076.json b/conversations/conv_050076.json
deleted file mode 100644
index fc89f2e23ba2130c0ba4ff63b9e464a054597522..0000000000000000000000000000000000000000
--- a/conversations/conv_050076.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration_frames": 94099,
-      "overlap": false,
-      "utterance_id": "7097-73688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-73688.flac |",
-      "real_speaker_id": "7097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "5725-44938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-44938.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-80037.flac |",
-      "real_speaker_id": "7097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-44938.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 74360
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.94927621770962,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-80037.flac |",
-      "real_speaker_id": "7097",
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-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "8012-273138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273138.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_14.wav",
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-    {
-      "event_class": "Dishes",
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-      "duration": 0.2008390022675737,
-      "start_time": 7.03901995513322
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_050083.json b/conversations/conv_050083.json
deleted file mode 100644
index c0b0ec44cc8d36a9370320357a5eb7dddce06b8c..0000000000000000000000000000000000000000
--- a/conversations/conv_050083.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.244488432964632,
-      "duration": 4.244488432964632,
-      "start_frame": 0,
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-      "utterance_id": "4133-6541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.53883753345932,
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-      "utterance_id": "7143-88743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7143-88743.flac |",
-      "real_speaker_id": "7143",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
-      "position_frames": 67911
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
-      "position_frames": 168373
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.62049146491833,
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-      "duration": 3.379508535081669,
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-      "utterance_id": "6370-92920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6370-92920.flac |",
-      "real_speaker_id": "6370",
-      "position_frames": 50992
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6370/laugh/0076.wav",
-      "duration": 1.08,
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-      "event_class": "laugh",
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-      "duration": 1.3500425055171723,
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-      "duration": 0.3665756344049457,
-      "start_time": 28.24479578226965,
-      "speaker_id": "6370"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050094.json b/conversations/conv_050094.json
deleted file mode 100644
index d7be45d9d28f075221e69075446624d0126eaaa9..0000000000000000000000000000000000000000
--- a/conversations/conv_050094.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.835693127480758,
-      "end_time": 7.651590874194114,
-      "duration": 3.815897746713356,
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-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
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-      "utterance_id": "4191-69032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-69032.flac |",
-      "real_speaker_id": "4191",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.412742294214937,
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-      "utterance_id": "2733-28252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
-      "real_speaker_id": "2733",
-      "position_frames": 151866
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.344057991264535,
-      "end_time": 32.0,
-      "duration": 1.6559420087354653,
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-      "utterance_id": "4191-44438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4191-44438.flac |",
-      "real_speaker_id": "4191",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050095.json b/conversations/conv_050095.json
deleted file mode 100644
index 1956ccd7872f2d90d2e390f0b913670175413ff5..0000000000000000000000000000000000000000
--- a/conversations/conv_050095.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.142617753642796,
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-      "overlap": false,
-      "utterance_id": "20-5360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/20-5360.flac |",
-      "real_speaker_id": "20",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.941350994194465,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/127-129390.flac |",
-      "real_speaker_id": "127",
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-      "segment_id": "seg0003",
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-      "start_time": 16.794087646871887,
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-      "overlap": false,
-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 93259
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/20-5360.flac |",
-      "real_speaker_id": "20",
-      "position_frames": 66281
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.179585266529692,
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-      "duration": 4.820414733470308,
-      "start_frame": 434873,
-      "duration_frames": 77126,
-      "overlap": false,
-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 174156
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/20/laugh/0074.wav",
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-      "start_time": 0,
-      "speaker_id": "20"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6727/laugh/0030.wav",
-      "duration": 1.48,
-      "start_time": 7.619962303462442,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/20/laugh/0090.wav",
-      "duration": 1.3984278556265282,
-      "start_time": 25.599209491253678,
-      "speaker_id": "20"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6727/laugh/0031.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "6727"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6727/cough/0033.wav",
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-      "start_time": 26.651410348661027,
-      "speaker_id": "6727"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050099.json b/conversations/conv_050099.json
deleted file mode 100644
index 1b723b8a70b7b91c0d747d4b3db37932c55737e3..0000000000000000000000000000000000000000
--- a/conversations/conv_050099.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 87392,
-      "overlap": false,
-      "utterance_id": "4629-19366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "5322-7680",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5322-7680.flac |",
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-    {
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-      "utterance_id": "7982-110054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7982-110054.flac |",
-      "real_speaker_id": "7982",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.830657276149175,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5322-7678.flac |",
-      "real_speaker_id": "5322",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.715683994669604,
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-      "real_speaker_id": "4629",
-      "position_frames": 87392
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.75532049944921,
-      "end_time": 32.0,
-      "duration": 3.2446795005507916,
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-      "duration_frames": 51914,
-      "overlap": false,
-      "utterance_id": "5322-7678",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5322-7678.flac |",
-      "real_speaker_id": "5322",
-      "position_frames": 66899
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5322/laugh/0033.wav",
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-      "start_time": 7.674559583868526,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5322/laugh/0068.wav",
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-      "start_time": 15.228499914318073,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5322/cough/0107.wav",
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-      "start_time": 15.383522043616352,
-      "speaker_id": "5322"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050102.json b/conversations/conv_050102.json
deleted file mode 100644
index ad316937c4d19a4aed9411d6a2eec64d6b920235..0000000000000000000000000000000000000000
--- a/conversations/conv_050102.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.345819542009618,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295525.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
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-      "event_class": "Blender",
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-      "speaker_id": "8587"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050105.json b/conversations/conv_050105.json
deleted file mode 100644
index 9bc09980c4fd38d0cb8cf187c453425a02c5b900..0000000000000000000000000000000000000000
--- a/conversations/conv_050105.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.688752136704977,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "2309-152159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152159.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 0
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-      "start_time": 4.848351091036873,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/328-129766.flac |",
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "5154",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_050109.json b/conversations/conv_050109.json
deleted file mode 100644
index fae2f659f0490f8b8077656d49a05055b33cfbef..0000000000000000000000000000000000000000
--- a/conversations/conv_050109.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "segment_id": "seg0004",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050112.json b/conversations/conv_050112.json
deleted file mode 100644
index 5b4d927ebc436dae8d34355e1002c210e1492c33..0000000000000000000000000000000000000000
--- a/conversations/conv_050112.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.926878546302518,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6567/laugh/0000.wav",
-      "duration": 1.1354047749090326,
-      "start_time": 0,
-      "speaker_id": "6567"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6567/cough/0077.wav",
-      "duration": 0.8570573909942458,
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-      "speaker_id": "6567"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/149/laugh/0118.wav",
-      "duration": 0.609038451562772,
-      "start_time": 18.32238835608276,
-      "speaker_id": "149"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050113.json b/conversations/conv_050113.json
deleted file mode 100644
index e129cc098af45f1556644594d2d7696a05e6fcbd..0000000000000000000000000000000000000000
--- a/conversations/conv_050113.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.795179947057575,
-      "duration": 6.795179947057575,
-      "start_frame": 0,
-      "duration_frames": 108722,
-      "overlap": false,
-      "utterance_id": "6035-58142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-58142.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.896925989774233,
-      "end_time": 11.165112962776899,
-      "duration": 4.268186973002667,
-      "start_frame": 110350,
-      "duration_frames": 68290,
-      "overlap": false,
-      "utterance_id": "192-128345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128345.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.404397941154519,
-      "end_time": 17.06820018732965,
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-      "overlap": false,
-      "utterance_id": "5060-15562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15562.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.18497901660018,
-      "end_time": 22.356512567598703,
-      "duration": 5.1715335509985225,
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-      "duration_frames": 82744,
-      "overlap": false,
-      "utterance_id": "6035-74040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-74040.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.467976396447366,
-      "end_time": 28.212124801056724,
-      "duration": 5.744148404609357,
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-      "duration_frames": 91906,
-      "overlap": false,
-      "utterance_id": "5060-15563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15563.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.5180566052994,
-      "end_time": 32.0,
-      "duration": 3.4819433947006004,
-      "start_frame": 456288,
-      "duration_frames": 55711,
-      "overlap": false,
-      "utterance_id": "6035-74040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-74040.flac |",
-      "real_speaker_id": "6035",
-      "position_frames": 82744
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
-      "duration": 15.531366093056779,
-      "start_time": 3.3592558686135683
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
-      "duration": 2.498405602626045,
-      "start_time": 3.605831647141109
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
-      "duration": 3.8477746673439377,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6035/cough/0097.wav",
-      "duration": 1.12,
-      "start_time": 6.970556775328933,
-      "speaker_id": "6035"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5060/laugh/0114.wav",
-      "duration": 1.8107999391469334,
-      "start_time": 11.55834666718906,
-      "speaker_id": "5060"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6035/laugh/0104.wav",
-      "duration": 0.92,
-      "start_time": 21.315183972485897,
-      "speaker_id": "6035"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6035/cough/0091.wav",
-      "duration": 1.32,
-      "start_time": 15.718372306356345,
-      "speaker_id": "6035"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5060/cough/0114.wav",
-      "duration": 0.8,
-      "start_time": 21.638684261682,
-      "speaker_id": "5060"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050114.json b/conversations/conv_050114.json
deleted file mode 100644
index 7e67ac18d94be7915a8678c3dd1e198659999adb..0000000000000000000000000000000000000000
--- a/conversations/conv_050114.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.856372197279721,
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-      "start_frame": 0,
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-      "utterance_id": "4071-39913",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39913.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.382777431939969,
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-      "utterance_id": "7009-83683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-83683.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "4071-39616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39616.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.268692642406815,
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-      "duration": 3.9812404472263996,
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-      "overlap": true,
-      "utterance_id": "8629-261139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261139.flac |",
-      "real_speaker_id": "8629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.57330238318231,
-      "end_time": 25.97442506525029,
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-      "overlap": false,
-      "utterance_id": "7009-2331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7009-2331.flac |",
-      "real_speaker_id": "7009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.618522733244262,
-      "end_time": 32.0,
-      "duration": 5.381477266755738,
-      "start_frame": 425896,
-      "duration_frames": 86103,
-      "overlap": false,
-      "utterance_id": "4071-39616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39616.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 81416
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7009/laugh/0065.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4071/laugh/0083.wav",
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-      "start_time": 13.307613728962881,
-      "speaker_id": "4071"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7009/laugh/0065.wav",
-      "duration": 1.52,
-      "start_time": 23.842500432071226,
-      "speaker_id": "7009"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050125.json b/conversations/conv_050125.json
deleted file mode 100644
index 62088cf86c89ff9289de3698d1781c1ed4982c59..0000000000000000000000000000000000000000
--- a/conversations/conv_050125.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "4965-27768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27768.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27767.flac |",
-      "real_speaker_id": "4965",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7445-94526",
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-      "real_speaker_id": "7445",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27767.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 136639
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7445-94523",
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-  ],
-  "background_events": [
-    {
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "start_time": 9.453507295999403,
-      "speaker_id": "4965"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050129.json b/conversations/conv_050129.json
deleted file mode 100644
index e45ba6e807f6162cde3959abdb4df81a44106cad..0000000000000000000000000000000000000000
--- a/conversations/conv_050129.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
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-      "utterance_id": "7883-113275",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7883-113274.flac |",
-      "real_speaker_id": "7883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.867797419445697,
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-      "duration": 1.1322025805543028,
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-      "utterance_id": "4217-9052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9052.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 104023
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_2.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "4217"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4217/cough/0136.wav",
-      "duration": 0.6279692266626046,
-      "start_time": 15.527945894696696,
-      "speaker_id": "4217"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7883/cough/0063.wav",
-      "duration": 0.6632865901432523,
-      "start_time": 22.91851792515646,
-      "speaker_id": "7883"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4217/laugh/0083.wav",
-      "duration": 0.5993940561025998,
-      "start_time": 31.14956023135868,
-      "speaker_id": "4217"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050133.json b/conversations/conv_050133.json
deleted file mode 100644
index 28cf32c11c89e71e71c8750254b34f8f54383b71..0000000000000000000000000000000000000000
--- a/conversations/conv_050133.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.893022333292281,
-      "duration": 4.893022333292281,
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-      "overlap": false,
-      "utterance_id": "1789-142896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-142896.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.409588947259861,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4321-15217.flac |",
-      "real_speaker_id": "4321",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.975533430385893,
-      "end_time": 18.10677221471437,
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-      "overlap": true,
-      "utterance_id": "7988-113322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-113322.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.571527119056697,
-      "end_time": 25.25682878588063,
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-      "utterance_id": "1789-137618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-137618.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.711446003980065,
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-      "duration": 6.288553996019935,
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-      "utterance_id": "7988-114070",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-114070.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1789/cough/0020.wav",
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-      "speaker_id": "1789"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050143.json b/conversations/conv_050143.json
deleted file mode 100644
index d7ba0ba8da4f88d4f1dc12245f51f7311c31dde8..0000000000000000000000000000000000000000
--- a/conversations/conv_050143.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "580",
-      "position_frames": 0
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-      "real_speaker_id": "580",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "22-121140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121140.flac |",
-      "real_speaker_id": "22",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.14161744264295,
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-      "utterance_id": "580-126945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/580-126945.flac |",
-      "real_speaker_id": "580",
-      "position_frames": 104668
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.017476681921586,
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-      "utterance_id": "22-121148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/22-121148.flac |",
-      "real_speaker_id": "22",
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-  "background_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_050144.json b/conversations/conv_050144.json
deleted file mode 100644
index f94059aacf3ca2dbc09c44ec57ff450e5a2d3ced..0000000000000000000000000000000000000000
--- a/conversations/conv_050144.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 89180
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-141320.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5000-30597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5000-30597.flac |",
-      "real_speaker_id": "5000",
-      "position_frames": 171764
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1571-141320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-141320.flac |",
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_050148.json b/conversations/conv_050148.json
deleted file mode 100644
index 04afc6e1758c1200af40c9164b9d4e33e0969c54..0000000000000000000000000000000000000000
--- a/conversations/conv_050148.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152160.flac |",
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-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4591-16221",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_050152.json b/conversations/conv_050152.json
deleted file mode 100644
index cf2e4731439d69acb56f213bf09e29f969c3ceaf..0000000000000000000000000000000000000000
--- a/conversations/conv_050152.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "4260",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.34918794341487,
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-      "utterance_id": "1844-144486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-144486.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 96003
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-26514.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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\ No newline at end of file
diff --git a/conversations/conv_050155.json b/conversations/conv_050155.json
deleted file mode 100644
index 3b841b332f0ceac88f72e6fa7d65495b644635f2..0000000000000000000000000000000000000000
--- a/conversations/conv_050155.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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-      "real_speaker_id": "1069",
-      "position_frames": 100936
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1069-133699.flac |",
-      "real_speaker_id": "1069",
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\ No newline at end of file
diff --git a/conversations/conv_050164.json b/conversations/conv_050164.json
deleted file mode 100644
index aee74a8ada2c138ba0e8b18cc02495bc81ea0e9b..0000000000000000000000000000000000000000
--- a/conversations/conv_050164.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139404.flac |",
-      "real_speaker_id": "1445",
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-      "real_speaker_id": "7997",
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-      "speaker_id": "8430"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050168.json b/conversations/conv_050168.json
deleted file mode 100644
index b5810ab1a8d8d0597553fed697d18a42a526b1df..0000000000000000000000000000000000000000
--- a/conversations/conv_050168.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_050169.json b/conversations/conv_050169.json
deleted file mode 100644
index 0ca67b469437614d8c39da84deafd517d73115f9..0000000000000000000000000000000000000000
--- a/conversations/conv_050169.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "5199",
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-      "real_speaker_id": "5199",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5199-18509.flac |",
-      "real_speaker_id": "5199",
-      "position_frames": 72757
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4189-274546.flac |",
-      "real_speaker_id": "4189",
-      "position_frames": 159574
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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\ No newline at end of file
diff --git a/conversations/conv_050172.json b/conversations/conv_050172.json
deleted file mode 100644
index 724752b8623e15c39a39ab6752001a35a74a18f1..0000000000000000000000000000000000000000
--- a/conversations/conv_050172.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.51806815485444,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3257-169284.flac |",
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-      "position_frames": 0
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-      "utterance_id": "7502-100425",
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-      "real_speaker_id": "7502",
-      "position_frames": 0
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-      "duration": 1.36,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "6332"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050186.json b/conversations/conv_050186.json
deleted file mode 100644
index c45d4649a5c380d3136f5e3d3f675b4ebad3882b..0000000000000000000000000000000000000000
--- a/conversations/conv_050186.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "8011-280922",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8011-280922.flac |",
-      "real_speaker_id": "8011",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_050187.json b/conversations/conv_050187.json
deleted file mode 100644
index 8e8f2cb533f4a381a0b2f475b2091ae56cd4b8b4..0000000000000000000000000000000000000000
--- a/conversations/conv_050187.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
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\ No newline at end of file
diff --git a/conversations/conv_050191.json b/conversations/conv_050191.json
deleted file mode 100644
index 83ec1e2ae1d45b0c212ea10bc0208f981e97dd6d..0000000000000000000000000000000000000000
--- a/conversations/conv_050191.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
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-      "speaker_id": 1,
-      "start_time": 23.554173918492747,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 146383
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.027445652793496,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/778-126734.flac |",
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-      "position_frames": 84689
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_050200.json b/conversations/conv_050200.json
deleted file mode 100644
index 83173910fd74d616ee6a92f2fdc37f075d6c7641..0000000000000000000000000000000000000000
--- a/conversations/conv_050200.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-163609.flac |",
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-      "real_speaker_id": "4750",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6054-41610.flac |",
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-    {
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-      "speaker_id": "6054"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050216.json b/conversations/conv_050216.json
deleted file mode 100644
index 20d8a46c147f4100e988e67217813bcf0b42af53..0000000000000000000000000000000000000000
--- a/conversations/conv_050216.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1844-145713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1844-145713.flac |",
-      "real_speaker_id": "1844",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "6458",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
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-    {
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-      "real_speaker_id": "6458",
-      "position_frames": 107166
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "4799",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6458-61323",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6458-61323.flac |",
-      "real_speaker_id": "6458",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "1844"
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050217.json b/conversations/conv_050217.json
deleted file mode 100644
index 30abab009ac7dcd569ab752f29618eeda8594fb5..0000000000000000000000000000000000000000
--- a/conversations/conv_050217.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.584540867693367,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4193-48170.flac |",
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-      "real_speaker_id": "2967",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4902.flac |",
-      "real_speaker_id": "2967",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.1207612445107131,
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-      "speaker_id": "2967"
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-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "2967"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050220.json b/conversations/conv_050220.json
deleted file mode 100644
index a0ba8587e1e8b324d077805d75231df80771c4fc..0000000000000000000000000000000000000000
--- a/conversations/conv_050220.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4806-26895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26895.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.204934467400184,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-121896.flac |",
-      "real_speaker_id": "115",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8222-274378.flac |",
-      "real_speaker_id": "8222",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-122944.flac |",
-      "real_speaker_id": "115",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4806-26895.flac |",
-      "real_speaker_id": "4806",
-      "position_frames": 62536
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "115-122944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/115-122944.flac |",
-      "real_speaker_id": "115",
-      "position_frames": 68187
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406066_1.wav",
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-  "paralinguistic_events": [
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-      "duration": 1.36,
-      "start_time": 27.08935907573474,
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\ No newline at end of file
diff --git a/conversations/conv_050236.json b/conversations/conv_050236.json
deleted file mode 100644
index 8f6a784c1308e6bdf39ed30195b36100479ebc73..0000000000000000000000000000000000000000
--- a/conversations/conv_050236.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-12761.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/331-132019.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-54535.flac |",
-      "real_speaker_id": "5778",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6567-53342.flac |",
-      "real_speaker_id": "6567",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5778-12761",
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-      "position_frames": 78163
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_050240.json b/conversations/conv_050240.json
deleted file mode 100644
index 8e829fd7ff50abf6c8fcb44787ff78c0bf4aed1e..0000000000000000000000000000000000000000
--- a/conversations/conv_050240.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
-      "position_frames": 0
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-      "real_speaker_id": "6346",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5977",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "1495",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5977-46900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
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-      "position_frames": 65021
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_050241.json b/conversations/conv_050241.json
deleted file mode 100644
index 1398bb61bb32e57545104cd03ebfbb50427f79aa..0000000000000000000000000000000000000000
--- a/conversations/conv_050241.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/876-126411.flac |",
-      "real_speaker_id": "876",
-      "position_frames": 142273
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "duration": 1.24,
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-      "event_class": "cough",
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-      "speaker_id": "5735"
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-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 30.767336179883003,
-      "speaker_id": "876"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050250.json b/conversations/conv_050250.json
deleted file mode 100644
index dcedb993e4f43216ccf7d6c21e429d0bf976a8c2..0000000000000000000000000000000000000000
--- a/conversations/conv_050250.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.596436371608398,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111572.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-295195.flac |",
-      "real_speaker_id": "8675",
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-      "speaker_id": 0,
-      "start_time": 11.196271419578494,
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-      "utterance_id": "1841-150351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-150351.flac |",
-      "real_speaker_id": "1841",
-      "position_frames": 0
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-      "start_time": 16.73790730881551,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-292352.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-150351.flac |",
-      "real_speaker_id": "1841",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8675-295195.flac |",
-      "real_speaker_id": "8675",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "8675"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050257.json b/conversations/conv_050257.json
deleted file mode 100644
index c4d38d8ebbf5a123b337ec56fe498a4c657240fe..0000000000000000000000000000000000000000
--- a/conversations/conv_050257.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "460",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 93270
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-      "utterance_id": "460-172359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172359.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_050261.json b/conversations/conv_050261.json
deleted file mode 100644
index 3bb9299b8f07a6793ad6976249877403c5696eab..0000000000000000000000000000000000000000
--- a/conversations/conv_050261.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-88349.flac |",
-      "real_speaker_id": "4331",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
-      "real_speaker_id": "4599",
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-    {
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-      "real_speaker_id": "4331",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7245-104888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4331-57180",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 22.55457760062758,
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-      "utterance_id": "7245-104888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104888.flac |",
-      "real_speaker_id": "7245",
-      "position_frames": 82199
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4599-21274.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_050277.json b/conversations/conv_050277.json
deleted file mode 100644
index c0845c237f3ec7cb86ad84608e7619e106858312..0000000000000000000000000000000000000000
--- a/conversations/conv_050277.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "9000-282381",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "3549",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "9000-282380",
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-      "speaker_id": "3549"
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\ No newline at end of file
diff --git a/conversations/conv_050282.json b/conversations/conv_050282.json
deleted file mode 100644
index bdd8081056c041376fc3f7c21798110d1c8c989b..0000000000000000000000000000000000000000
--- a/conversations/conv_050282.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7467-261121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-143898.flac |",
-      "real_speaker_id": "2485",
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-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.866066419210313,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-143898.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 75248
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 83128
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-143898.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 175406
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_4.wav",
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-      "speaker_id": "2485"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050285.json b/conversations/conv_050285.json
deleted file mode 100644
index 0eea012d3089bede9acf9226a66dbc70a7d44791..0000000000000000000000000000000000000000
--- a/conversations/conv_050285.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54007.flac |",
-      "real_speaker_id": "6078",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6078-54013.flac |",
-      "real_speaker_id": "6078",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
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-  "background_events": [
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-      "start_time": 30.92,
-      "speaker_id": "2712"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050293.json b/conversations/conv_050293.json
deleted file mode 100644
index ddf4bdb235042cf4a073dc034941296466cf0e7c..0000000000000000000000000000000000000000
--- a/conversations/conv_050293.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3132-163510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3132-163510.flac |",
-      "real_speaker_id": "3132",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150689.flac |",
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-      "real_speaker_id": "3132",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150679.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "position_frames": 67755
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_050294.json b/conversations/conv_050294.json
deleted file mode 100644
index 177a568987b64cb7abeef61281b014efe464f72e..0000000000000000000000000000000000000000
--- a/conversations/conv_050294.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
-      "real_speaker_id": "5918",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1054",
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-      "real_speaker_id": "1054",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "speaker_id": "5918"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050298.json b/conversations/conv_050298.json
deleted file mode 100644
index a8231904dbc167ffed44db58e616b4d7fba73855..0000000000000000000000000000000000000000
--- a/conversations/conv_050298.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.953864613592124,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
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-      "position_frames": 0
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-      "utterance_id": "2775-161226",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-161226.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 15.270225929203146,
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-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 66567
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2531-156718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156718.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 152975
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2775-160958.flac |",
-      "real_speaker_id": "2775",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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\ No newline at end of file
diff --git a/conversations/conv_050304.json b/conversations/conv_050304.json
deleted file mode 100644
index 1b69970074f046a2bc78b68167ed42cc38c28eb9..0000000000000000000000000000000000000000
--- a/conversations/conv_050304.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.143604182168865,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5331.flac |",
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-      "utterance_id": "8619-291381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291381.flac |",
-      "real_speaker_id": "8619",
-      "position_frames": 0
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-      "position_frames": 0
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-      "utterance_id": "3983-5371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5371.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.489480799080788,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291381.flac |",
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-      "position_frames": 89585
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "duration": 1.0,
-      "start_time": 8.174103920668598,
-      "speaker_id": "3983"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "speaker_id": "3983"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050305.json b/conversations/conv_050305.json
deleted file mode 100644
index 1d1b0057921d6edcdb3d35a9d09ae59db92be4c8..0000000000000000000000000000000000000000
--- a/conversations/conv_050305.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.270891976890367,
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-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 75569
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 141900
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2741",
-      "position_frames": 90507
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.84249665067005,
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-      "duration": 4.158034142396649,
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-      "overlap": true,
-      "utterance_id": "1704-142310",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1704-142310.flac |",
-      "real_speaker_id": "1704",
-      "position_frames": 219983
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "duration": 1.1320542106822593,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
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-      "position_frames": 154382
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
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-    {
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-      "speaker_id": "1704"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050308.json b/conversations/conv_050308.json
deleted file mode 100644
index c90e0940794d0b4ae6ed0746b83bb76a5fa1e01d..0000000000000000000000000000000000000000
--- a/conversations/conv_050308.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "duration": 1.48,
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\ No newline at end of file
diff --git a/conversations/conv_050312.json b/conversations/conv_050312.json
deleted file mode 100644
index de187bc4f4a4ea6bbfc58e448f539de059794fc2..0000000000000000000000000000000000000000
--- a/conversations/conv_050312.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.75858956573407,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.420686769076329,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-110067.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3067.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 16.28444746570252,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8071-110067.flac |",
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-      "real_speaker_id": "1801",
-      "position_frames": 63891
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_4.wav",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_050315.json b/conversations/conv_050315.json
deleted file mode 100644
index f6ce1c1a8bc6f57b97f98631725c278b8a7fe907..0000000000000000000000000000000000000000
--- a/conversations/conv_050315.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8329-279775.flac |",
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-      "real_speaker_id": "8329",
-      "position_frames": 137636
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/188-135249.flac |",
-      "real_speaker_id": "188",
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "1544-121405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1544-121405.flac |",
-      "real_speaker_id": "1544",
-      "position_frames": 108735
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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\ No newline at end of file
diff --git a/conversations/conv_050324.json b/conversations/conv_050324.json
deleted file mode 100644
index 400408e8a3bf1ea04920dad75699ae4a9c18cc6f..0000000000000000000000000000000000000000
--- a/conversations/conv_050324.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "7276-284424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2272-152262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152262.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
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-      "utterance_id": "7276-90847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-90847.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "6088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 56258
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 29265,
-      "overlap": false,
-      "utterance_id": "2272-152264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152264.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-    {
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
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-      "start_time": 30.94,
-      "speaker_id": "2272"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050328.json b/conversations/conv_050328.json
deleted file mode 100644
index 2c3f7b818f881f97156a704f91047626e0567108..0000000000000000000000000000000000000000
--- a/conversations/conv_050328.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.684185443577714,
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4340-15220.flac |",
-      "real_speaker_id": "4340",
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-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050332.json b/conversations/conv_050332.json
deleted file mode 100644
index e9885115208667d22dbe16482c3d41f35b7c4739..0000000000000000000000000000000000000000
--- a/conversations/conv_050332.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7190-90543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90543.flac |",
-      "real_speaker_id": "7190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.713541876432558,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3843-176666.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-130138.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7190-90542.flac |",
-      "real_speaker_id": "7190",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "3843",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "duration": 2.541608952292993,
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-      "utterance_id": "2606-132102",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-132102.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050339.json b/conversations/conv_050339.json
deleted file mode 100644
index e95e5c75b320186c4ef54e19bad9f9982f7fdcb7..0000000000000000000000000000000000000000
--- a/conversations/conv_050339.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "1985-144468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
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-      "start_time": 5.310300266036048,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 86071
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5261-19371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19371.flac |",
-      "real_speaker_id": "5261",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.62623784833026,
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-      "utterance_id": "27-123349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 170511
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5261-19373",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19373.flac |",
-      "real_speaker_id": "5261",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "speaker_id": "1985"
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-    {
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-      "start_time": 8.402881442539506,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/27/cough/0078.wav",
-      "duration": 0.88,
-      "start_time": 21.70611510106028,
-      "speaker_id": "27"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050345.json b/conversations/conv_050345.json
deleted file mode 100644
index f54da00c41bc2c030432480e6a529ce2a8237a95..0000000000000000000000000000000000000000
--- a/conversations/conv_050345.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3780-177782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177782.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.842593585070919,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177782.flac |",
-      "real_speaker_id": "3780",
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-      "real_speaker_id": "1679",
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-      "real_speaker_id": "3780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3780",
-      "position_frames": 209823
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 19.301243578864177,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3780/laugh/0040.wav",
-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "3780"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050349.json b/conversations/conv_050349.json
deleted file mode 100644
index 2c5a45cfdb4a315cabb35cfe298790849b6704e0..0000000000000000000000000000000000000000
--- a/conversations/conv_050349.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
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-  "total_duration": 31.11256812297317,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.525404997568307,
-      "end_time": 11.755185043351084,
-      "duration": 5.2297800457827766,
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-      "overlap": false,
-      "utterance_id": "8425-292520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-292520.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 93708
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-      "segment_id": "seg0003",
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-      "utterance_id": "8425-287387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-287387.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 164495
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.29111655493376,
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-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 216216
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 14.629303950650401
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
-      "duration": 3.31720247058327,
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_5.wav",
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-      "start_time": 5.198092870742575
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8415/laugh/0128.wav",
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-      "speaker_id": "8415"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8415/laugh/0098.wav",
-      "duration": 1.607192679304382,
-      "start_time": 19.717363265558276,
-      "speaker_id": "8415"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8415/cough/0008.wav",
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-      "start_time": 27.77044782193483,
-      "speaker_id": "8415"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050353.json b/conversations/conv_050353.json
deleted file mode 100644
index 76994ba3ae265106da2c9d1fefebc4f4851985a8..0000000000000000000000000000000000000000
--- a/conversations/conv_050353.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.830503443296624,
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-      "utterance_id": "3389-130127",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-130127.flac |",
-      "real_speaker_id": "3389",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "118-124588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-124588.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 0
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-    {
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 67689
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3389-13250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3389-13250.flac |",
-      "real_speaker_id": "3389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 3.175108445012384,
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-      "overlap": false,
-      "utterance_id": "118-124588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-124588.flac |",
-      "real_speaker_id": "118",
-      "position_frames": 98057
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "duration": 1.4,
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-      "speaker_id": "3389"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/118/laugh/0111.wav",
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-      "speaker_id": "118"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6875/laugh/0055.wav",
-      "duration": 1.3343401877040948,
-      "start_time": 15.251042365560654,
-      "speaker_id": "6875"
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-    {
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-      "duration": 1.32,
-      "start_time": 24.810168336402263,
-      "speaker_id": "3389"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/118/cough/0052.wav",
-      "duration": 1.0736168839096127,
-      "start_time": 30.92638311609039,
-      "speaker_id": "118"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050365.json b/conversations/conv_050365.json
deleted file mode 100644
index 829c537f54eca18b1648f159aae145a09d687a8f..0000000000000000000000000000000000000000
--- a/conversations/conv_050365.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.68919220140161,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "5261-19373",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19373.flac |",
-      "real_speaker_id": "5261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.851986034016112,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19373.flac |",
-      "real_speaker_id": "5261",
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-      "utterance_id": "8072-284670",
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-      "real_speaker_id": "8072",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "6099",
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-    {
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-      "real_speaker_id": "5261",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "8072",
-      "position_frames": 76177
-    },
-    {
-      "segment_id": "seg0006",
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-      "overlap": false,
-      "utterance_id": "8072-284670",
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-  "background_events": [
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_050369.json b/conversations/conv_050369.json
deleted file mode 100644
index 149f25e788eec053bfcb882f605ff2a73117e7ed..0000000000000000000000000000000000000000
--- a/conversations/conv_050369.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7730-304534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304534.flac |",
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-      "utterance_id": "7730-304535",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 57324
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7730-304541.flac |",
-      "real_speaker_id": "7730",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 20.826188759949,
-      "speaker_id": "4807"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050373.json b/conversations/conv_050373.json
deleted file mode 100644
index e187cd3e822e664228a4f2f5e48f65a21f171a6e..0000000000000000000000000000000000000000
--- a/conversations/conv_050373.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.512952653803445,
-      "end_time": 9.965224407824902,
-      "duration": 4.452271754021458,
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-      "duration_frames": 71236,
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-      "utterance_id": "6494-60800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60800.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144986.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6494-60774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60774.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.06941577274998,
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-      "utterance_id": "2688-144986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144986.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 109482
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.41109802969102,
-      "end_time": 29.621594942013353,
-      "duration": 4.210496912322332,
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-      "overlap": false,
-      "utterance_id": "6494-60774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6494-60774.flac |",
-      "real_speaker_id": "6494",
-      "position_frames": 48949
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.962646511936455,
-      "end_time": 32.0,
-      "duration": 2.0373534880635447,
-      "start_frame": 479402,
-      "duration_frames": 32597,
-      "overlap": false,
-      "utterance_id": "2688-144987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144987.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/418160.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2688/laugh/0005.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
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-    {
-      "event_class": "laugh",
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-      "start_time": 23.468459683782033,
-      "speaker_id": "6494"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050378.json b/conversations/conv_050378.json
deleted file mode 100644
index 51f912c6cdd7ede584e4e308b05b2a75af816108..0000000000000000000000000000000000000000
--- a/conversations/conv_050378.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7518-86741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.480236708044733,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 62974
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.621651400523355,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273154.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 65127
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1323-149236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-149236.flac |",
-      "real_speaker_id": "1323",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "7518-86741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 148531
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.442172140412417,
-      "end_time": 32.0,
-      "duration": 1.557827859587583,
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-      "utterance_id": "8012-273138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8012-273138.flac |",
-      "real_speaker_id": "8012",
-      "position_frames": 0
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-  ],
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-    {
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-    {
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-      "speaker_id": "7518"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050381.json b/conversations/conv_050381.json
deleted file mode 100644
index eedb5e5ee4f1d2b383778a0a745af5cf52b91569..0000000000000000000000000000000000000000
--- a/conversations/conv_050381.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "2481-156738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-156738.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "8097",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-108005.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6311-63719",
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-      "real_speaker_id": "6311",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.98220268344331,
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-      "duration": 4.399478654350726,
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-      "utterance_id": "8097-114971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8097-114971.flac |",
-      "real_speaker_id": "8097",
-      "position_frames": 79995
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2481-12731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-12731.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050386.json b/conversations/conv_050386.json
deleted file mode 100644
index d4b8c72efb5b887ecfd5f9f2b8d4fd60f7e29932..0000000000000000000000000000000000000000
--- a/conversations/conv_050386.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "5339-14134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "460",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5339-14134.flac |",
-      "real_speaker_id": "5339",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11533.flac |",
-      "real_speaker_id": "4110",
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-      "segment_id": "seg0005",
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-      "start_time": 25.46686492171451,
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-      "utterance_id": "460-172359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/460-172359.flac |",
-      "real_speaker_id": "460",
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "speaker_id": "460"
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\ No newline at end of file
diff --git a/conversations/conv_050390.json b/conversations/conv_050390.json
deleted file mode 100644
index 9af46cf200b7f49a067146fb792b2d2d30c591eb..0000000000000000000000000000000000000000
--- a/conversations/conv_050390.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.41833240069413,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7333-94828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94828.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 0
-    },
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-      "start_time": 5.486103231071074,
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-      "real_speaker_id": "1696",
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-      "utterance_id": "543-133212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133212.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 18.376758355910912,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133211.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.73111120224728,
-      "end_time": 30.148273407278545,
-      "duration": 5.4171622050312624,
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-      "overlap": false,
-      "utterance_id": "7333-94827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94827.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.996240924625294,
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-      "utterance_id": "543-133217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133217.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_050397.json b/conversations/conv_050397.json
deleted file mode 100644
index abb00275952fa6d8efe3d9c549ba97b85459b8a4..0000000000000000000000000000000000000000
--- a/conversations/conv_050397.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.064824979935455,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5641-39772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-39772.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-39772.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 74869
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-    {
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-      "utterance_id": "7988-114070",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-32124.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7988-114070.flac |",
-      "real_speaker_id": "7988",
-      "position_frames": 70597
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-  ],
-  "background_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5641/laugh/0012.wav",
-      "duration": 0.6999226152549554,
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-      "speaker_id": "5641"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050401.json b/conversations/conv_050401.json
deleted file mode 100644
index 16527eed8aca2f1f745fe9173254b05a0e552746..0000000000000000000000000000000000000000
--- a/conversations/conv_050401.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 88106,
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-      "utterance_id": "4071-176278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-176278.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6563-285357",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-285357.flac |",
-      "real_speaker_id": "6563",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4071-39616",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4071-39616.flac |",
-      "real_speaker_id": "4071",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6563-285357.flac |",
-      "real_speaker_id": "6563",
-      "position_frames": 99606
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "3440-171009",
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-      "real_speaker_id": "3440",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.87743555342129,
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-      "duration": 4.122564446578711,
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-      "utterance_id": "3440-171009",
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-      "real_speaker_id": "3440",
-      "position_frames": 78770
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4071/laugh/0104.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3440/laugh/0110.wav",
-      "duration": 1.72,
-      "start_time": 26.146849037559555,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050406.json b/conversations/conv_050406.json
deleted file mode 100644
index 1b96ca94b72237e22e504d79e3ff3f4e26d0c91c..0000000000000000000000000000000000000000
--- a/conversations/conv_050406.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.94775203185672,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.5143542147461075,
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-      "start_frame": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3879-173592.flac |",
-      "real_speaker_id": "3879",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
-      "real_speaker_id": "5604",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26987.flac |",
-      "real_speaker_id": "5604",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5604-26956.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6575-67592.flac |",
-      "real_speaker_id": "6575",
-      "position_frames": 88549
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 17.40725637149302,
-      "speaker_id": "5604"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5604/laugh/0066.wav",
-      "duration": 1.9409650638684552,
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-      "speaker_id": "5604"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050407.json b/conversations/conv_050407.json
deleted file mode 100644
index de26cdffb864e9c949ae73d538a875152ee63a8f..0000000000000000000000000000000000000000
--- a/conversations/conv_050407.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.02598158015494,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6701-71404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71404.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.954244111717908,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71401.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-174172.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-54019.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71404.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 90654
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-    {
-      "segment_id": "seg0005",
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-      "overlap": true,
-      "utterance_id": "5952-50948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5952-50948.flac |",
-      "real_speaker_id": "5952",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_050410.json b/conversations/conv_050410.json
deleted file mode 100644
index cb14c509d7776a7e1dcfb62ffaf79b99f4ff2bbf..0000000000000000000000000000000000000000
--- a/conversations/conv_050410.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "27-123349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 100370
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135043.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.781125247514346,
-      "end_time": 26.080359498251216,
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-      "start_frame": 316498,
-      "duration_frames": 100787,
-      "overlap": false,
-      "utterance_id": "27-123349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 183387
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.416960113075504,
-      "end_time": 32.0,
-      "duration": 5.583039886924496,
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-      "overlap": false,
-      "utterance_id": "1200-135068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135068.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_050417.json b/conversations/conv_050417.json
deleted file mode 100644
index 7d9da1a7bbbae5e380bfd2dc79e5d8de80cae26e..0000000000000000000000000000000000000000
--- a/conversations/conv_050417.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.881067716995418,
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-      "overlap": false,
-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.7630861188862395,
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-      "real_speaker_id": "3592",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 164489
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6962/laugh/0020.wav",
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6962/laugh/0028.wav",
-      "duration": 1.3248126664402675,
-      "start_time": 17.78217202443341,
-      "speaker_id": "6962"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6962/cough/0006.wav",
-      "duration": 0.8538592807700709,
-      "start_time": 10.451725539822995,
-      "speaker_id": "6962"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6962/cough/0024.wav",
-      "duration": 1.016897073755909,
-      "start_time": 30.008423137290265,
-      "speaker_id": "6962"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050426.json b/conversations/conv_050426.json
deleted file mode 100644
index 9534c6dfaf1bd4e5ccaa7b48f4d2d451fe2e50e0..0000000000000000000000000000000000000000
--- a/conversations/conv_050426.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.53380840135177,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6785592955423043,
-      "duration": 3.6785592955423043,
-      "start_frame": 0,
-      "duration_frames": 58856,
-      "overlap": false,
-      "utterance_id": "7713-106733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106733.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.140950780474177,
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-      "overlap": false,
-      "utterance_id": "5141-26932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26932.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.11809286610545,
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-      "duration_frames": 61329,
-      "overlap": false,
-      "utterance_id": "7713-106729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7713-106729.flac |",
-      "real_speaker_id": "7713",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.39495021672748,
-      "end_time": 16.425147129927026,
-      "duration": 3.030196913199546,
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-      "overlap": true,
-      "utterance_id": "5141-26995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26995.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.459107795813793,
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-      "utterance_id": "3959-706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3959-706.flac |",
-      "real_speaker_id": "3959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.82763395042695,
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-      "duration": 6.695800092755263,
-      "start_frame": 365242,
-      "duration_frames": 107132,
-      "overlap": false,
-      "utterance_id": "5141-26943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26943.flac |",
-      "real_speaker_id": "5141",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.015064968736702,
-      "end_time": 31.53380840135177,
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-      "utterance_id": "5141-26932",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5141-26932.flac |",
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-      "position_frames": 87032
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/408348_1.wav",
-      "duration": 1.9837862661521233,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5141/laugh/0023.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7713/cough/0018.wav",
-      "duration": 1.405515375043999,
-      "start_time": 12.034628795051752,
-      "speaker_id": "7713"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050430.json b/conversations/conv_050430.json
deleted file mode 100644
index 9e64273b1ab7a66d8223a12290131594f09793ea..0000000000000000000000000000000000000000
--- a/conversations/conv_050430.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.658420639333578,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1331-155891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155891.flac |",
-      "real_speaker_id": "1331",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 6.361865883010578,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163371.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
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-      "start_time": 9.459427358979175,
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-      "overlap": true,
-      "utterance_id": "1331-155892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155892.flac |",
-      "real_speaker_id": "1331",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "duration_frames": 75980,
-      "overlap": false,
-      "utterance_id": "1422-149735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1422-149735.flac |",
-      "real_speaker_id": "1422",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 17.90494941360449,
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-      "start_frame": 286479,
-      "duration_frames": 80893,
-      "overlap": true,
-      "utterance_id": "915-163370",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163370.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.754625377344766,
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-      "overlap": false,
-      "utterance_id": "1422-149735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1422-149735.flac |",
-      "real_speaker_id": "1422",
-      "position_frames": 75980
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1331/laugh/0131.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1331/cough/0097.wav",
-      "duration": 0.5295095366232485,
-      "start_time": 12.688339099858164,
-      "speaker_id": "1331"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050440.json b/conversations/conv_050440.json
deleted file mode 100644
index 29fe03e9c8a90360f5eee8ac83dee2614d7b43da..0000000000000000000000000000000000000000
--- a/conversations/conv_050440.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4442-2868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.259128630901041,
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-      "duration_frames": 73962,
-      "overlap": false,
-      "utterance_id": "1171-134968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-134968.flac |",
-      "real_speaker_id": "1171",
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "2237-163673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-163673.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "2237-163673",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-163673.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 86197
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.718474873727565,
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-      "overlap": false,
-      "utterance_id": "1171-130776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.013617564896546,
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-      "duration": 3.9863824351034545,
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-      "overlap": false,
-      "utterance_id": "1171-130776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1171-130776.flac |",
-      "real_speaker_id": "1171",
-      "position_frames": 98179
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "start_time": 8.056303521442066,
-      "speaker_id": "1171"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050447.json b/conversations/conv_050447.json
deleted file mode 100644
index c362f9cc5d1515f558b0c27a299ecd630414e88c..0000000000000000000000000000000000000000
--- a/conversations/conv_050447.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.196280508052014,
-      "duration": 4.196280508052014,
-      "start_frame": 0,
-      "duration_frames": 67140,
-      "overlap": false,
-      "utterance_id": "6084-2159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "duration": 5.242835567376555,
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-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.860715026860575,
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-      "utterance_id": "5002-72876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5002-72876.flac |",
-      "real_speaker_id": "5002",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6084-2159.flac |",
-      "real_speaker_id": "6084",
-      "position_frames": 67140
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "229-130880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/229-130880.flac |",
-      "real_speaker_id": "229",
-      "position_frames": 182391
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 17.356381765380327,
-      "speaker_id": "6084"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/229/cough/0009.wav",
-      "duration": 0.510752140334409,
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-      "speaker_id": "229"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/229/laugh/0022.wav",
-      "duration": 0.7247956379415716,
-      "start_time": 29.989232763397286,
-      "speaker_id": "229"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050451.json b/conversations/conv_050451.json
deleted file mode 100644
index 59536f572d886e3b81f9a25283d3a300e3d4c78e..0000000000000000000000000000000000000000
--- a/conversations/conv_050451.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.303014141485797,
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-      "overlap": false,
-      "utterance_id": "6076-51655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51655.flac |",
-      "real_speaker_id": "6076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.483202947637509,
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-      "utterance_id": "6076-51655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51655.flac |",
-      "real_speaker_id": "6076",
-      "position_frames": 68848
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "92-6488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
-      "real_speaker_id": "92",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.71433539006758,
-      "end_time": 19.88553895551851,
-      "duration": 3.1712035654509316,
-      "start_frame": 267429,
-      "duration_frames": 50739,
-      "overlap": false,
-      "utterance_id": "6076-51654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51654.flac |",
-      "real_speaker_id": "6076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.57728096921799,
-      "end_time": 26.66710933154695,
-      "duration": 6.0898283623289595,
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-      "utterance_id": "6076-51653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6076-51653.flac |",
-      "real_speaker_id": "6076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.91248057878103,
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-      "duration": 3.0039380055476794,
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-      "duration_frames": 48063,
-      "overlap": false,
-      "utterance_id": "92-204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-204.flac |",
-      "real_speaker_id": "92",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.62487456401282,
-      "end_time": 32.0,
-      "duration": 1.3751254359871794,
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-      "overlap": false,
-      "utterance_id": "5012-31097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5012-31097.flac |",
-      "real_speaker_id": "5012",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6076/laugh/0113.wav",
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 25.689684525144173,
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "5012"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050456.json b/conversations/conv_050456.json
deleted file mode 100644
index ee09dd4448d2e7a84c3165e2f17bd68152f2d1c1..0000000000000000000000000000000000000000
--- a/conversations/conv_050456.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3876-174960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174960.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123523.flac |",
-      "real_speaker_id": "302",
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-      "utterance_id": "3876-174953",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.683189760340547,
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-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.633457298649986,
-      "end_time": 26.89469729263105,
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-      "overlap": false,
-      "utterance_id": "302-123516",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123516.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.964303059899834,
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-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 88641
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-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2364/laugh/0045.wav",
-      "duration": 0.9,
-      "start_time": 22.29545756154146,
-      "speaker_id": "2364"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050467.json b/conversations/conv_050467.json
deleted file mode 100644
index b54dab665946d989700c5c017871aaec0d20db1f..0000000000000000000000000000000000000000
--- a/conversations/conv_050467.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
-      "real_speaker_id": "5063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
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-      "real_speaker_id": "4680",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "5063",
-      "position_frames": 71739
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.857425759826253,
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-      "overlap": false,
-      "utterance_id": "4680-16026",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16026.flac |",
-      "real_speaker_id": "4680",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5063-32451",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5063-32451.flac |",
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-      "position_frames": 156852
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_050471.json b/conversations/conv_050471.json
deleted file mode 100644
index 1eb1b0a28bf8bf60931ee1fed77e14e939864d11..0000000000000000000000000000000000000000
--- a/conversations/conv_050471.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "6836-61804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-61804.flac |",
-      "real_speaker_id": "6836",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4853",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6836-76549.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-126842.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.85283147810115,
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-      "duration": 4.147168521898848,
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-      "utterance_id": "4853-27671",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4853-27671.flac |",
-      "real_speaker_id": "4853",
-      "position_frames": 80130
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-      "event_class": "Dishes",
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-      "speaker_id": "4853"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050484.json b/conversations/conv_050484.json
deleted file mode 100644
index e2dec77bc78c1adb0d124b8bd2228dc07500e397..0000000000000000000000000000000000000000
--- a/conversations/conv_050484.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 5.109034734872091,
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-      "utterance_id": "4174-107938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-107938.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.282877761683952,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-159.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 56496
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-      "utterance_id": "4174-69293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-69293.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.442081578133344,
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-      "duration": 4.557918421866656,
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-      "overlap": false,
-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050488.json b/conversations/conv_050488.json
deleted file mode 100644
index a81d9d37675fdf0820d4c55e33e9a6fefb22884a..0000000000000000000000000000000000000000
--- a/conversations/conv_050488.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2652-157644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 4.784643670395288,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23901.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6308-68359.flac |",
-      "real_speaker_id": "6308",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23901.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 146662
-    },
-    {
-      "segment_id": "seg0006",
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-      "start_time": 31.43222753428413,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
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-      "position_frames": 65202
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4196/laugh/0024.wav",
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-      "start_time": 10.036189187657934,
-      "speaker_id": "4196"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2652/laugh/0071.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "2652"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2652/cough/0068.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050492.json b/conversations/conv_050492.json
deleted file mode 100644
index 374e50e3e967fe32b568a9cc669daa38ebb58c75..0000000000000000000000000000000000000000
--- a/conversations/conv_050492.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.61208715536617,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5471-284440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-284440.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.50378447705121,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-138866.flac |",
-      "real_speaker_id": "707",
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-    },
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-      "duration_frames": 73210,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-284440.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 98548
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-280362.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.55174709673661,
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-      "start_frame": 456827,
-      "duration_frames": 48965,
-      "overlap": false,
-      "utterance_id": "707-161166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-161166.flac |",
-      "real_speaker_id": "707",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5471/cough/0109.wav",
-      "duration": 0.96,
-      "start_time": 0,
-      "speaker_id": "5471"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1624/laugh/0047.wav",
-      "duration": 1.16,
-      "start_time": 20.608688939967273,
-      "speaker_id": "1624"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5471/cough/0122.wav",
-      "duration": 1.16,
-      "start_time": 27.755389871937147,
-      "speaker_id": "5471"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050493.json b/conversations/conv_050493.json
deleted file mode 100644
index d2a2162ac1362e92c742c168bf918d46835cf4a5..0000000000000000000000000000000000000000
--- a/conversations/conv_050493.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.754936735770254,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
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-      "position_frames": 0
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-      "start_time": 9.232942875585685,
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-      "utterance_id": "7297-92812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7297-92812.flac |",
-      "real_speaker_id": "7297",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.972110931746556,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6673-72311.flac |",
-      "real_speaker_id": "6673",
-      "position_frames": 82274
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.540923650019337,
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-      "utterance_id": "7297-275885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7297-275885.flac |",
-      "real_speaker_id": "7297",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.902595648610223,
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-      "utterance_id": "3876-174953",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 50025
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
-      "duration": 4.085689436836965,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6673/laugh/0000.wav",
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-      "start_time": 5.429723645170113,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7297/laugh/0014.wav",
-      "duration": 0.7684222205600297,
-      "start_time": 13.784474030055577,
-      "speaker_id": "7297"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7297/cough/0047.wav",
-      "duration": 0.6870395035510197,
-      "start_time": 8.362314634790293,
-      "speaker_id": "7297"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050502.json b/conversations/conv_050502.json
deleted file mode 100644
index 98667ebc76f4d9c64d8d96cac3089f3babb414fb..0000000000000000000000000000000000000000
--- a/conversations/conv_050502.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.9736681635061406,
-      "duration": 3.9736681635061406,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "612-121760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121760.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.7620916291246935,
-      "end_time": 9.536005173715047,
-      "duration": 4.773913544590354,
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-      "duration_frames": 76382,
-      "overlap": false,
-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.689356903305265,
-      "end_time": 15.2956147878751,
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-      "duration_frames": 89700,
-      "overlap": true,
-      "utterance_id": "612-121766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.256763108267762,
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-      "duration_frames": 101929,
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-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 76382
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.828580506157756,
-      "end_time": 30.400230417994862,
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-      "utterance_id": "7376-96150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.723617428419722,
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-      "duration": 1.2763825715802781,
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-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 178311
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3500/cough/0036.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050505.json b/conversations/conv_050505.json
deleted file mode 100644
index 0c721c21953bc9053b575b72515888265da41b9f..0000000000000000000000000000000000000000
--- a/conversations/conv_050505.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99078407761256,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2712-3532",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3532.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
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-    {
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-      "overlap": false,
-      "utterance_id": "2368-157057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157057.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157057.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 64363
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.10845128628568,
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-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 61921
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 99513,
-      "overlap": false,
-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 130735
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2368/laugh/0098.wav",
-      "duration": 1.08,
-      "start_time": 13.77630315353708,
-      "speaker_id": "2368"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050513.json b/conversations/conv_050513.json
deleted file mode 100644
index d4d7dca07e70102e90fd27bfd4497ee53c7dc336..0000000000000000000000000000000000000000
--- a/conversations/conv_050513.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1066-5330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-5330.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.731015235104731,
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-      "overlap": false,
-      "utterance_id": "7117-86710",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86710.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1066-5330.flac |",
-      "real_speaker_id": "1066",
-      "position_frames": 78177
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7117-86732",
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-      "real_speaker_id": "7117",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.98592887709268,
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-      "duration": 5.373135998932369,
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-      "utterance_id": "7117-86710",
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-      "real_speaker_id": "7117",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5206-19376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5206-19376.flac |",
-      "real_speaker_id": "5206",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050514.json b/conversations/conv_050514.json
deleted file mode 100644
index 65c0bc75a4f790eac3ce5dfbd5a2b61a0134a3bb..0000000000000000000000000000000000000000
--- a/conversations/conv_050514.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.354376166839263,
-      "duration": 6.354376166839263,
-      "start_frame": 0,
-      "duration_frames": 101670,
-      "overlap": false,
-      "utterance_id": "5808-48608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5808-48608.flac |",
-      "real_speaker_id": "5808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 14.91808827006466,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.899022146094566,
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-      "start_frame": 350384,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 107377
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 28.456634582520948,
-      "end_time": 32.0,
-      "duration": 3.543365417479052,
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-      "utterance_id": "6974-258420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
-      "position_frames": 205201
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6974/cough/0010.wav",
-      "duration": 1.4269165310477823,
-      "start_time": 5.546643391294112,
-      "speaker_id": "6974"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6974/cough/0026.wav",
-      "duration": 1.1463899905105204,
-      "start_time": 20.59990292838264,
-      "speaker_id": "6974"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6974/laugh/0027.wav",
-      "duration": 1.32,
-      "start_time": 30.68,
-      "speaker_id": "6974"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050518.json b/conversations/conv_050518.json
deleted file mode 100644
index 7a8b7864dd4080b32413887145f88c0a9c25ed3e..0000000000000000000000000000000000000000
--- a/conversations/conv_050518.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.741251383686789,
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-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 99737
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.38733941457813,
-      "end_time": 21.43922951212393,
-      "duration": 5.0518900975458,
-      "start_frame": 262197,
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-      "overlap": false,
-      "utterance_id": "8112-281888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8112-281888.flac |",
-      "real_speaker_id": "8112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.785453355710217,
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-      "overlap": false,
-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 170078
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.589703881827983,
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-      "duration": 4.155774308641049,
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-      "duration_frames": 66492,
-      "overlap": false,
-      "utterance_id": "8112-281888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8112-281888.flac |",
-      "real_speaker_id": "8112",
-      "position_frames": 80830
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.436515997427804,
-      "end_time": 32.0,
-      "duration": 0.5634840025721957,
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-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
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-      "position_frames": 236418
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/780/laugh/0049.wav",
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-      "event_class": "cough",
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-      "speaker_id": "780"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050522.json b/conversations/conv_050522.json
deleted file mode 100644
index d8a3883b7b49b7336065970254613681cc83de1d..0000000000000000000000000000000000000000
--- a/conversations/conv_050522.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "403-128339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-128339.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "403-126855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-126855.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.94758806616925,
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-      "utterance_id": "5894-64098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64098.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.46105964522667,
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-      "duration_frames": 94004,
-      "overlap": false,
-      "utterance_id": "199-131001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 62601
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "5894-64095",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64095.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050534.json b/conversations/conv_050534.json
deleted file mode 100644
index 9554091fcccfeba6445d978ea8a734ec53e80ca8..0000000000000000000000000000000000000000
--- a/conversations/conv_050534.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4545-9166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4545-9166.flac |",
-      "real_speaker_id": "4545",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/587-54108.flac |",
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-      "utterance_id": "6978-92210",
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-      "real_speaker_id": "6978",
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-    {
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-    {
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-      "real_speaker_id": "6978",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-  "background_events": [
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-      "start_time": 30.92,
-      "speaker_id": "6978"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050538.json b/conversations/conv_050538.json
deleted file mode 100644
index 5b42b530441f911f8a8b9184074e6e235b685940..0000000000000000000000000000000000000000
--- a/conversations/conv_050538.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8725-294551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294551.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.310714186525562,
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-      "real_speaker_id": "6743",
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-      "segment_id": "seg0002",
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-      "utterance_id": "8725-294551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294551.flac |",
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-      "position_frames": 94311
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6743",
-      "position_frames": 58155
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.353999415616478,
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-      "utterance_id": "8725-294554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8725-294554.flac |",
-      "real_speaker_id": "8725",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.768875398408102,
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-      "duration": 3.2311246015918975,
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-      "utterance_id": "6743-72306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6743-72306.flac |",
-      "real_speaker_id": "6743",
-      "position_frames": 143052
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.0,
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-      "speaker_id": "6743"
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-      "event_class": "cough",
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-      "duration": 0.5448734849785295,
-      "start_time": 10.29006478319342,
-      "speaker_id": "8725"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050539.json b/conversations/conv_050539.json
deleted file mode 100644
index deb5579ba62a711c3c521868e3d7f9c7050839b0..0000000000000000000000000000000000000000
--- a/conversations/conv_050539.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.192336230947262,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.265094686467123,
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-      "overlap": false,
-      "utterance_id": "3070-166423",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166423.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.9134362061052945,
-      "end_time": 10.78682183437149,
-      "duration": 3.873385628266197,
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-      "overlap": true,
-      "utterance_id": "4345-7635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.118343844936575,
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-      "overlap": false,
-      "utterance_id": "1674-142298",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1674-142298.flac |",
-      "real_speaker_id": "1674",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.78746010335846,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7636.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.47391870062661,
-      "end_time": 30.94171692390534,
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-      "utterance_id": "4345-7635",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4345-7635.flac |",
-      "real_speaker_id": "4345",
-      "position_frames": 61974
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.722577688652706,
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-      "duration": 0.4697585422945565,
-      "start_frame": 491561,
-      "duration_frames": 7516,
-      "overlap": true,
-      "utterance_id": "3070-166423",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166423.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 100241
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 22.160181405895692,
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3070/laugh/0025.wav",
-      "duration": 1.0590375878531024,
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-      "speaker_id": "3070"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050542.json b/conversations/conv_050542.json
deleted file mode 100644
index d37f2c570532c61ab78a80882341c4224d33e658..0000000000000000000000000000000000000000
--- a/conversations/conv_050542.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.438818419376386,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-68188.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-68188.flac |",
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-      "position_frames": 79321
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-44938.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5304-109507",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-109507.flac |",
-      "real_speaker_id": "5304",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5304-55856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-55856.flac |",
-      "real_speaker_id": "5304",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.927894851066256,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5588-39648.flac |",
-      "real_speaker_id": "5588",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "duration": 0.70824254324075,
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-      "speaker_id": "5304"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050543.json b/conversations/conv_050543.json
deleted file mode 100644
index 9e36599dd9d2eb9426537030c2b70be57764eaa8..0000000000000000000000000000000000000000
--- a/conversations/conv_050543.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3105-163726.flac |",
-      "real_speaker_id": "3105",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "3105-166683",
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-      "real_speaker_id": "3105",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "1563",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "3105-163726",
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-      "real_speaker_id": "3105",
-      "position_frames": 100739
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "1563",
-      "position_frames": 173977
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_050544.json b/conversations/conv_050544.json
deleted file mode 100644
index 0210bcd4852c4b11c3b4ce08fb1e5949b159596d..0000000000000000000000000000000000000000
--- a/conversations/conv_050544.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.790283617192053,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1239-139609.flac |",
-      "real_speaker_id": "1239",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 204473
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-  "background_events": [
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-      "speaker_id": "3911"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050552.json b/conversations/conv_050552.json
deleted file mode 100644
index 07db1773672a3843f2f12c107caa91bf3d5730c1..0000000000000000000000000000000000000000
--- a/conversations/conv_050552.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "26-495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.941323113100098,
-      "end_time": 8.746595225370518,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6126-10992.flac |",
-      "real_speaker_id": "6126",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
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-      "speaker_id": 1,
-      "start_time": 12.835096738337828,
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-      "utterance_id": "684-139205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-139205.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 16.476902211865934,
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-      "duration_frames": 89290,
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-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 52426
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.317141098052698,
-      "end_time": 26.9015545771782,
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-      "utterance_id": "684-137978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-137978.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.18298806804382,
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-      "duration": 3.434843161658105,
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-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 141716
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-      "segment_id": "seg0007",
-      "speaker_id": 1,
-      "start_time": 31.24528361548341,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/684-131458.flac |",
-      "real_speaker_id": "684",
-      "position_frames": 0
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-  "background_events": [
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_050555.json b/conversations/conv_050555.json
deleted file mode 100644
index 97836bd589ab62f786e12e0549af3fba246929c8..0000000000000000000000000000000000000000
--- a/conversations/conv_050555.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.857407139523616,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8307-120457",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120457.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "7313-91072",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7313-91072.flac |",
-      "real_speaker_id": "7313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.24101661841198,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 72886
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": true,
-      "utterance_id": "8307-120456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8307-120456.flac |",
-      "real_speaker_id": "8307",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/953/cough/0062.wav",
-      "duration": 0.5864610220551018,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7313/laugh/0035.wav",
-      "duration": 0.6158759884449093,
-      "start_time": 13.519580037029137,
-      "speaker_id": "7313"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050559.json b/conversations/conv_050559.json
deleted file mode 100644
index f34b08b166b58c90bcdd49317f355831c39e7e2c..0000000000000000000000000000000000000000
--- a/conversations/conv_050559.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "utterance_id": "7276-90847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-90847.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6696-68773.flac |",
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-      "utterance_id": "7276-284424",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6696",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6696-73296",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050563.json b/conversations/conv_050563.json
deleted file mode 100644
index 1e89b9ed42fdef2dcf6add77986295be716884ab..0000000000000000000000000000000000000000
--- a/conversations/conv_050563.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "duration_frames": 48591,
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-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 8.944604026179935,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 48591
-    },
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.54259440931628,
-      "end_time": 24.646376077767787,
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-      "utterance_id": "2688-144986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2688-144986.flac |",
-      "real_speaker_id": "2688",
-      "position_frames": 86523
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2348-143895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 108530
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.484424996745403,
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-      "duration": 1.5155750032545967,
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-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 92095
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2348/laugh/0069.wav",
-      "duration": 0.5995634716241998,
-      "start_time": 3.063661276240386,
-      "speaker_id": "2348"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6963/cough/0048.wav",
-      "duration": 1.1,
-      "start_time": 30.9,
-      "speaker_id": "6963"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050575.json b/conversations/conv_050575.json
deleted file mode 100644
index d04822f935449551afbddf218c6ab6b1c3c705d2..0000000000000000000000000000000000000000
--- a/conversations/conv_050575.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.853290971672036,
-      "duration": 6.853290971672036,
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-      "overlap": false,
-      "utterance_id": "7618-102367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102367.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.959271045991101,
-      "end_time": 12.664203749906383,
-      "duration": 4.704932703915282,
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-      "utterance_id": "1187-136241",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136241.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.21369650794248,
-      "end_time": 18.189223879383004,
-      "duration": 4.975527371440523,
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-      "overlap": false,
-      "utterance_id": "7618-102372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102372.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.690985745041495,
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-      "duration": 5.022069365453068,
-      "start_frame": 299055,
-      "duration_frames": 80353,
-      "overlap": false,
-      "utterance_id": "2074-159371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2074-159371.flac |",
-      "real_speaker_id": "2074",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.21397434168503,
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-      "duration_frames": 80169,
-      "overlap": false,
-      "utterance_id": "7618-102367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7618-102367.flac |",
-      "real_speaker_id": "7618",
-      "position_frames": 109652
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.468042562256727,
-      "end_time": 32.0,
-      "duration": 2.531957437743273,
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-      "overlap": false,
-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9876074263483134,
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-      "speaker_id": "2074"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7618/laugh/0042.wav",
-      "duration": 1.44,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.68,
-      "start_time": 27.523712015124556,
-      "speaker_id": "1187"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050579.json b/conversations/conv_050579.json
deleted file mode 100644
index a528b1f197bb4e4cba0093872cbe18f901e18608..0000000000000000000000000000000000000000
--- a/conversations/conv_050579.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4859-29340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-29340.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.169499580924115,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-292240.flac |",
-      "real_speaker_id": "7942",
-      "position_frames": 0
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-      "utterance_id": "4859-26870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-26870.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.20972452527619,
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-      "overlap": false,
-      "utterance_id": "3054-128242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.235733861001194,
-      "end_time": 30.351914109194947,
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-      "duration_frames": 81858,
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-      "utterance_id": "7942-283384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-283384.flac |",
-      "real_speaker_id": "7942",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.20466661959959,
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-      "duration": 0.795333380400411,
-      "start_frame": 499274,
-      "duration_frames": 12725,
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-      "utterance_id": "4859-22176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-22176.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4859/cough/0015.wav",
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-      "start_time": 0,
-      "speaker_id": "4859"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7942/laugh/0078.wav",
-      "duration": 1.3144289773039162,
-      "start_time": 7.433292243802721,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7942/laugh/0024.wav",
-      "duration": 1.0288099113713676,
-      "start_time": 23.910702395378713,
-      "speaker_id": "7942"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050580.json b/conversations/conv_050580.json
deleted file mode 100644
index 86d88615c9d89e9a7c5158517208bcd3d68cbf0f..0000000000000000000000000000000000000000
--- a/conversations/conv_050580.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.67047311419192,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.923913571501048,
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-      "utterance_id": "1641-130504",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130504.flac |",
-      "real_speaker_id": "1641",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130505.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.9320810039372,
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-      "utterance_id": "688-46588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/688-46588.flac |",
-      "real_speaker_id": "688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.56085483489541,
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-      "overlap": false,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 74727
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.232116529794407,
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-      "duration_frames": 35713,
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-      "utterance_id": "1641-130503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130503.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
-      "duration": 1.529018696875668,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/87/laugh/0104.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/688/laugh/0058.wav",
-      "duration": 1.0,
-      "start_time": 22.06006268027354,
-      "speaker_id": "688"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050581.json b/conversations/conv_050581.json
deleted file mode 100644
index 03aa43a6820bf5890504113c4172f48181ce0d8d..0000000000000000000000000000000000000000
--- a/conversations/conv_050581.json
+++ /dev/null
@@ -1,88 +0,0 @@
-{
-  "num_segments": 5,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_050596.json b/conversations/conv_050596.json
deleted file mode 100644
index a9efb89dba0b0690737e10948b1a43c65b770b56..0000000000000000000000000000000000000000
--- a/conversations/conv_050596.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135659.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135659.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 85572
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "start_time": 0,
-      "speaker_id": "4238"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050600.json b/conversations/conv_050600.json
deleted file mode 100644
index 3e050f3631d468217b029e15be62e4143c5c7063..0000000000000000000000000000000000000000
--- a/conversations/conv_050600.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.17119207140213,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_050607.json b/conversations/conv_050607.json
deleted file mode 100644
index abae6a20e43c37fd2ff791379a0f81fd342ba824..0000000000000000000000000000000000000000
--- a/conversations/conv_050607.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_050610.json b/conversations/conv_050610.json
deleted file mode 100644
index 6f8db2eb357f57061dbc1db475b618d64b5ca10d..0000000000000000000000000000000000000000
--- a/conversations/conv_050610.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9555.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.61257312668945,
-      "end_time": 27.89583407020413,
-      "duration": 5.28326094351468,
-      "start_frame": 361801,
-      "duration_frames": 84532,
-      "overlap": false,
-      "utterance_id": "2582-155973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2582-155973.flac |",
-      "real_speaker_id": "2582",
-      "position_frames": 129013
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.583044055012955,
-      "end_time": 32.0,
-      "duration": 3.416955944987045,
-      "start_frame": 457328,
-      "duration_frames": 54671,
-      "overlap": false,
-      "utterance_id": "3112-9554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3112-9554.flac |",
-      "real_speaker_id": "3112",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
-      "start_time": 20.951981380459692
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2582/laugh/0073.wav",
-      "duration": 1.16,
-      "start_time": 3.7832995206494364,
-      "speaker_id": "2582"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2582/laugh/0108.wav",
-      "duration": 1.4944769425509448,
-      "start_time": 14.862783661248944,
-      "speaker_id": "2582"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3112/laugh/0111.wav",
-      "duration": 1.3825936847364257,
-      "start_time": 26.99618391623747,
-      "speaker_id": "3112"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050611.json b/conversations/conv_050611.json
deleted file mode 100644
index 61b0851f2ffe1ac91c178067a9a68e52f105bb6c..0000000000000000000000000000000000000000
--- a/conversations/conv_050611.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.88534446040927,
-      "duration": 4.88534446040927,
-      "start_frame": 0,
-      "duration_frames": 78165,
-      "overlap": false,
-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.16719115970511,
-      "end_time": 9.735048692753251,
-      "duration": 5.567857533048141,
-      "start_frame": 66675,
-      "duration_frames": 89085,
-      "overlap": true,
-      "utterance_id": "5463-39173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.75052257912768,
-      "end_time": 15.79241444902879,
-      "duration": 5.041891869901111,
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-      "overlap": false,
-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 78165
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.13453819299728,
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-      "duration": 3.893168328496616,
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-      "duration_frames": 62290,
-      "overlap": true,
-      "utterance_id": "2568-156118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156118.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.677607855341886,
-      "end_time": 26.091384306347955,
-      "duration": 4.413776451006068,
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-      "overlap": false,
-      "utterance_id": "7475-232691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
-      "position_frames": 158835
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.695070105686185,
-      "end_time": 32.0,
-      "duration": 5.3049298943138155,
-      "start_frame": 427121,
-      "duration_frames": 84878,
-      "overlap": false,
-      "utterance_id": "2568-156116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2568-156116.flac |",
-      "real_speaker_id": "2568",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "start_time": 9.80787274839377
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2568/laugh/0133.wav",
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-    {
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-      "duration": 0.634025469801597,
-      "start_time": 21.000841454340396,
-      "speaker_id": "7475"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050627.json b/conversations/conv_050627.json
deleted file mode 100644
index 973b9027784fe921be9d787e9f95975a20b35547..0000000000000000000000000000000000000000
--- a/conversations/conv_050627.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.698999375556326,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2812-160187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1456-130544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130544.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2812-160187.flac |",
-      "real_speaker_id": "2812",
-      "position_frames": 93769
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.95050711194044,
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-      "utterance_id": "1456-139733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-139733.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.11814807520942,
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-      "utterance_id": "2812-160187",
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-      "real_speaker_id": "2812",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1456-130553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1456-130553.flac |",
-      "real_speaker_id": "1456",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "start_time": 9.947234333596352,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
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-      "event_class": "cough",
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-      "start_time": 31.360060891465345,
-      "speaker_id": "1456"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050631.json b/conversations/conv_050631.json
deleted file mode 100644
index 242c264bfe8197646d7aa639528a697b09d9ec50..0000000000000000000000000000000000000000
--- a/conversations/conv_050631.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7510/cough/0120.wav",
-      "duration": 0.8,
-      "start_time": 23.217853341244506,
-      "speaker_id": "7510"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050646.json b/conversations/conv_050646.json
deleted file mode 100644
index fb18ea4b86f92a098b63de2c09803d06b4811584..0000000000000000000000000000000000000000
--- a/conversations/conv_050646.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.313149163585834,
-      "duration": 6.313149163585834,
-      "start_frame": 0,
-      "duration_frames": 101010,
-      "overlap": false,
-      "utterance_id": "7338-92154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92154.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.586775574967621,
-      "end_time": 13.159399412964984,
-      "duration": 6.572623837997363,
-      "start_frame": 105388,
-      "duration_frames": 105161,
-      "overlap": false,
-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.852164756326456,
-      "end_time": 20.689154916686743,
-      "duration": 6.836990160360287,
-      "start_frame": 221634,
-      "duration_frames": 109391,
-      "overlap": false,
-      "utterance_id": "7338-92174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92174.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.965759905448063,
-      "end_time": 27.368978949797096,
-      "duration": 6.403219044349032,
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-      "duration_frames": 102451,
-      "overlap": false,
-      "utterance_id": "5622-19214",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5622-19214.flac |",
-      "real_speaker_id": "5622",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 28.523945224858203,
-      "end_time": 32.0,
-      "duration": 3.4760547751417974,
-      "start_frame": 456383,
-      "duration_frames": 55616,
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-      "utterance_id": "7338-92154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92154.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 101010
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
-      "start_time": 14.316004791274745
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.5522878253736985,
-      "start_time": 22.86307855309459
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_050647.json b/conversations/conv_050647.json
deleted file mode 100644
index 84c78ddc2f80707fbf95f6546ef3b1fc01bf9c34..0000000000000000000000000000000000000000
--- a/conversations/conv_050647.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.960383822959239,
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-      "utterance_id": "3922-723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3922-723.flac |",
-      "real_speaker_id": "3922",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.534477844457153,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7297-275885.flac |",
-      "real_speaker_id": "7297",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "6538-81859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81859.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.55438844687215,
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-      "duration_frames": 105068,
-      "overlap": false,
-      "utterance_id": "6538-81858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81858.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.355263356452937,
-      "end_time": 32.0,
-      "duration": 5.644736643547063,
-      "start_frame": 421684,
-      "duration_frames": 90315,
-      "overlap": false,
-      "utterance_id": "7297-92812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7297-92812.flac |",
-      "real_speaker_id": "7297",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 4.2563535872111276
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6538/laugh/0057.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6538/cough/0090.wav",
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-      "start_time": 12.764572023177532,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6538/cough/0030.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7297/laugh/0074.wav",
-      "duration": 1.36,
-      "start_time": 26.5738652738251,
-      "speaker_id": "7297"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050650.json b/conversations/conv_050650.json
deleted file mode 100644
index df726a993c5d476f95365ac790f22661d76b292f..0000000000000000000000000000000000000000
--- a/conversations/conv_050650.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6411-58876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6411-58876.flac |",
-      "real_speaker_id": "6411",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.242436930843619,
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-      "utterance_id": "7226-86965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86965.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.643059920067124,
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-      "utterance_id": "7226-86964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86964.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.508624308521103,
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-      "overlap": false,
-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 93790
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.318592365490225,
-      "end_time": 32.0,
-      "duration": 2.6814076345097746,
-      "start_frame": 469097,
-      "duration_frames": 42902,
-      "overlap": false,
-      "utterance_id": "7226-86964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7226-86964.flac |",
-      "real_speaker_id": "7226",
-      "position_frames": 88519
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8415/laugh/0046.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8415/laugh/0119.wav",
-      "duration": 1.32,
-      "start_time": 22.921908335781556,
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-    {
-      "event_class": "laugh",
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-      "start_time": 28.002266840389044,
-      "speaker_id": "7226"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050666.json b/conversations/conv_050666.json
deleted file mode 100644
index ab8936b8e5e0ac1231c9aa905a52cd9521002a73..0000000000000000000000000000000000000000
--- a/conversations/conv_050666.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "2919",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300234.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8879/laugh/0103.wav",
-      "duration": 0.8144257705061053,
-      "start_time": 26.682047032150084,
-      "speaker_id": "8879"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050670.json b/conversations/conv_050670.json
deleted file mode 100644
index 4fe1281a66974d36789d4ed0d2d6ab17c093ceb6..0000000000000000000000000000000000000000
--- a/conversations/conv_050670.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.8202285941981415,
-      "duration": 4.8202285941981415,
-      "start_frame": 0,
-      "duration_frames": 77123,
-      "overlap": false,
-      "utterance_id": "3994-11512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-11512.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.690176810762761,
-      "end_time": 12.05296406370649,
-      "duration": 6.362787252943728,
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-      "duration_frames": 101804,
-      "overlap": false,
-      "utterance_id": "1708-142417",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142417.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.521324454743986,
-      "end_time": 16.52184910304993,
-      "duration": 4.000524648305943,
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-      "duration_frames": 64008,
-      "overlap": false,
-      "utterance_id": "3994-11512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-11512.flac |",
-      "real_speaker_id": "3994",
-      "position_frames": 77123
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.638187483533212,
-      "end_time": 23.613780037749255,
-      "duration": 5.9755925542160435,
-      "start_frame": 282210,
-      "duration_frames": 95609,
-      "overlap": false,
-      "utterance_id": "1708-142415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142415.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.9562783236886,
-      "end_time": 27.583736493738254,
-      "duration": 3.6274581700496547,
-      "start_frame": 383300,
-      "duration_frames": 58039,
-      "overlap": false,
-      "utterance_id": "1760-143006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1760-143006.flac |",
-      "real_speaker_id": "1760",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.633607924556458,
-      "end_time": 32.0,
-      "duration": 3.3663920754435424,
-      "start_frame": 458137,
-      "duration_frames": 53862,
-      "overlap": false,
-      "utterance_id": "1708-142415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1708-142415.flac |",
-      "real_speaker_id": "1708",
-      "position_frames": 95609
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
-      "duration": 23.46399369678056,
-      "start_time": 4.781235307834161
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3994/laugh/0059.wav",
-      "duration": 0.9110584728367429,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3994/cough/0085.wav",
-      "duration": 1.375812922131835,
-      "start_time": 13.625640043939356,
-      "speaker_id": "3994"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1708/laugh/0013.wav",
-      "duration": 1.0378074621654605,
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-      "speaker_id": "1708"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1708/laugh/0073.wav",
-      "duration": 1.3673118386993581,
-      "start_time": 30.632688161300642,
-      "speaker_id": "1708"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050682.json b/conversations/conv_050682.json
deleted file mode 100644
index e85de7bba3a728d0213689df978780926e735fcf..0000000000000000000000000000000000000000
--- a/conversations/conv_050682.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5894-64098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64098.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "31-121969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121969.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5894-64098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64098.flac |",
-      "real_speaker_id": "5894",
-      "position_frames": 68042
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.425166981312323,
-      "end_time": 23.05373379773367,
-      "duration": 6.6285668164213485,
-      "start_frame": 262802,
-      "duration_frames": 106057,
-      "overlap": false,
-      "utterance_id": "31-121969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121969.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 62937
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.825836521993214,
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-      "overlap": false,
-      "utterance_id": "31-121969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/31-121969.flac |",
-      "real_speaker_id": "31",
-      "position_frames": 168994
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.97675266312646,
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-      "duration": 4.023247336873538,
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-      "overlap": false,
-      "utterance_id": "7338-92154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7338-92154.flac |",
-      "real_speaker_id": "7338",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/344652.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7338/laugh/0133.wav",
-      "duration": 1.76,
-      "start_time": 25.987941772004874,
-      "speaker_id": "7338"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050685.json b/conversations/conv_050685.json
deleted file mode 100644
index 79c4a02d694006ffff2903d99f2e694c8c8d2ca4..0000000000000000000000000000000000000000
--- a/conversations/conv_050685.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.09749689331798,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "7925-114279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-114279.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 178804
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.857159588349948,
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-      "duration_frames": 87159,
-      "overlap": false,
-      "utterance_id": "3215-5758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5758.flac |",
-      "real_speaker_id": "3215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.96658037412775,
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-      "utterance_id": "1563-137590",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
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-      "position_frames": 241214
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1563/laugh/0017.wav",
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050689.json b/conversations/conv_050689.json
deleted file mode 100644
index de6f91da374e8114a216855c4e8430acac685e1f..0000000000000000000000000000000000000000
--- a/conversations/conv_050689.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "2544-13195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2544-13195.flac |",
-      "real_speaker_id": "2544",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2618-138042",
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "2544"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2618/laugh/0069.wav",
-      "duration": 0.7062595704007673,
-      "start_time": 25.286670172928496,
-      "speaker_id": "2618"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2618/cough/0056.wav",
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-      "speaker_id": "2618"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6356/cough/0086.wav",
-      "duration": 1.4707464288679717,
-      "start_time": 30.529253571132028,
-      "speaker_id": "6356"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050693.json b/conversations/conv_050693.json
deleted file mode 100644
index 73b9940015a7aa85da679ee735891164412403e8..0000000000000000000000000000000000000000
--- a/conversations/conv_050693.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.086959323248993,
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-      "overlap": false,
-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.4510742318391285,
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-      "utterance_id": "8803-296082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296082.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
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-      "start_time": 13.020540520329199,
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-      "overlap": false,
-      "utterance_id": "1494-138315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
-      "real_speaker_id": "1494",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 18.59958400844756,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296085.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.66016450128433,
-      "end_time": 27.753329498259525,
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-      "overlap": false,
-      "utterance_id": "6752-74795",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74795.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 81391
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.330056467215282,
-      "end_time": 32.0,
-      "duration": 3.6699435327847176,
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-      "overlap": false,
-      "utterance_id": "8803-296082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8803-296082.flac |",
-      "real_speaker_id": "8803",
-      "position_frames": 100819
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "cough",
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-      "speaker_id": "8803"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050694.json b/conversations/conv_050694.json
deleted file mode 100644
index dced90aea6c66d979901c27126efe87d6c23e7b7..0000000000000000000000000000000000000000
--- a/conversations/conv_050694.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/895-136366.flac |",
-      "real_speaker_id": "895",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/895-136366.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.609314515711297,
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-      "overlap": false,
-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.15078086160561,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/895-136366.flac |",
-      "real_speaker_id": "895",
-      "position_frames": 139289
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/895-136366.flac |",
-      "real_speaker_id": "895",
-      "position_frames": 242375
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "duration": 1.84,
-      "start_time": 5.046666453187001,
-      "speaker_id": "895"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050703.json b/conversations/conv_050703.json
deleted file mode 100644
index 50b38b395f47e67dc8fcbc8569ba34ec46267464..0000000000000000000000000000000000000000
--- a/conversations/conv_050703.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.388365228228768,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "3171-7574",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-7574.flac |",
-      "real_speaker_id": "3171",
-      "position_frames": 0
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-    {
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-      "utterance_id": "3171-68344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-68344.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
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-    {
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-      "real_speaker_id": "3171",
-      "position_frames": 75209
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-68344.flac |",
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-      "position_frames": 177422
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050715.json b/conversations/conv_050715.json
deleted file mode 100644
index 7bbb205f3f9d494da171fea4b1c09e5079442097..0000000000000000000000000000000000000000
--- a/conversations/conv_050715.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.967693852442444,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4705-16048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4705-16048.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "7925",
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-      "segment_id": "seg0002",
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.915131701370555,
-      "end_time": 30.967693852442444,
-      "duration": 6.052562151071888,
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-      "overlap": false,
-      "utterance_id": "3654-171137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171137.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_17.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4705/laugh/0013.wav",
-      "duration": 1.3620783530280773,
-      "start_time": 1.5529872221323715,
-      "speaker_id": "4705"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3654/cough/0103.wav",
-      "duration": 1.12,
-      "start_time": 11.958039145006508,
-      "speaker_id": "3654"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050719.json b/conversations/conv_050719.json
deleted file mode 100644
index f9aa8f3b5d894d1c0bd4ce21cc18ae979901233e..0000000000000000000000000000000000000000
--- a/conversations/conv_050719.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.844930347667849,
-      "duration": 3.844930347667849,
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-      "duration_frames": 61518,
-      "overlap": false,
-      "utterance_id": "568-126452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-126452.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.328271690756232,
-      "end_time": 9.710386570708332,
-      "duration": 5.3821148799521,
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-      "duration_frames": 86113,
-      "overlap": false,
-      "utterance_id": "1851-151817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
-      "start_time": 10.476577817448566,
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-      "duration": 4.508867133058706,
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-      "duration_frames": 72141,
-      "overlap": false,
-      "utterance_id": "7241-90850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90850.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.095480662185093,
-      "end_time": 18.698878103800038,
-      "duration": 3.6033974416149435,
-      "start_frame": 241527,
-      "duration_frames": 57654,
-      "overlap": false,
-      "utterance_id": "7241-90852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.400122589396524,
-      "end_time": 24.771086042147445,
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-      "overlap": true,
-      "utterance_id": "7241-90852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 57654
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.697290684596343,
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-      "duration": 5.478059565761402,
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-      "overlap": false,
-      "utterance_id": "568-126446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/568-126446.flac |",
-      "real_speaker_id": "568",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.540060894807937,
-      "end_time": 32.0,
-      "duration": 0.4599391051920634,
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-      "duration_frames": 7359,
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-      "utterance_id": "1851-151817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-    {
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-      "event_class": "cough",
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-      "speaker_id": "568"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050723.json b/conversations/conv_050723.json
deleted file mode 100644
index a502b9397c33427543a6c7e05c11344aabff42fe..0000000000000000000000000000000000000000
--- a/conversations/conv_050723.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "3962-721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3962-721.flac |",
-      "real_speaker_id": "3962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.338563697289077,
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-      "utterance_id": "7277-105388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-105388.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "369-125883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125883.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.473507514816315,
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-      "utterance_id": "7277-106404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106404.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.39690117269077,
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-      "overlap": false,
-      "utterance_id": "3962-721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3962-721.flac |",
-      "real_speaker_id": "3962",
-      "position_frames": 54303
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.44168964276204,
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-      "duration": 0.5583103572379606,
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-      "overlap": false,
-      "utterance_id": "7277-106404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106404.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 104115
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7277/cough/0108.wav",
-      "duration": 0.6943754793344266,
-      "start_time": 30.62342341425521,
-      "speaker_id": "7277"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050728.json b/conversations/conv_050728.json
deleted file mode 100644
index 0665b0c5dde23083a734fc7c6b4b0d1c843b2e0b..0000000000000000000000000000000000000000
--- a/conversations/conv_050728.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25379.flac |",
-      "real_speaker_id": "4791",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/104-132092.flac |",
-      "real_speaker_id": "104",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 55550
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.116923743829435,
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-      "utterance_id": "4791-25378",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4791-25378.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "19-198",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/19-198.flac |",
-      "real_speaker_id": "19",
-      "position_frames": 127770
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-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4791/laugh/0133.wav",
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-      "start_time": 26.6363234562104,
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-}
\ No newline at end of file
diff --git a/conversations/conv_050735.json b/conversations/conv_050735.json
deleted file mode 100644
index 6fd1b678ed0dec91841cce008a77defa07e37d45..0000000000000000000000000000000000000000
--- a/conversations/conv_050735.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.813712882926535,
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-      "start_frame": 0,
-      "duration_frames": 93019,
-      "overlap": false,
-      "utterance_id": "1767-142944",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142944.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.457084746488369,
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-      "utterance_id": "1046-133225",
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-      "real_speaker_id": "1046",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5060-15556",
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-      "real_speaker_id": "5060",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1767-142942.flac |",
-      "real_speaker_id": "1767",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1046-133225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1046-133225.flac |",
-      "real_speaker_id": "1046",
-      "position_frames": 88315
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "5060-15556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15556.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 65110
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_9.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 14.889883239012681
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1046/laugh/0024.wav",
-      "duration": 1.08,
-      "start_time": 9.559571591651812,
-      "speaker_id": "1046"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_050739.json b/conversations/conv_050739.json
deleted file mode 100644
index 43b0f0ca216f01c1ae53484b4db26d9f46be5b5c..0000000000000000000000000000000000000000
--- a/conversations/conv_050739.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "612-121766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121766.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.2026518364042005,
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-      "duration": 4.1632106658895704,
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-      "utterance_id": "6713-56749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.649045598212652,
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-      "overlap": false,
-      "utterance_id": "6713-56749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 66611
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.057461466840905,
-      "end_time": 22.861806637012297,
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-      "overlap": true,
-      "utterance_id": "5717-61421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-61421.flac |",
-      "real_speaker_id": "5717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.648657378384932,
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-      "utterance_id": "6713-56749",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6713-56749.flac |",
-      "real_speaker_id": "6713",
-      "position_frames": 162663
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "612-121760",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/612-121760.flac |",
-      "real_speaker_id": "612",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "laugh",
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-      "duration": 1.14,
-      "start_time": 25.6628198596388,
-      "speaker_id": "6713"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_050742.json b/conversations/conv_050742.json
deleted file mode 100644
index b6e68536966ad3b7ea8df11f139454d3675948dd..0000000000000000000000000000000000000000
--- a/conversations/conv_050742.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "886-123273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123273.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.527520869654513,
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-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.239114888272255,
-      "end_time": 28.90564781631398,
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-      "duration_frames": 90664,
-      "overlap": false,
-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 50755
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7886-110517",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7886-110517.flac |",
-      "real_speaker_id": "7886",
-      "position_frames": 100279
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050745.json b/conversations/conv_050745.json
deleted file mode 100644
index 64b4f847cff7e1c002300dd3139260fe3557b3ab..0000000000000000000000000000000000000000
--- a/conversations/conv_050745.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "8245-274393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-274393.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.0340364040869305,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-274392.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.11488625589865,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.355173940774577,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 53030
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.295084087683705,
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-      "duration_frames": 75278,
-      "overlap": false,
-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 56477
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8687/laugh/0028.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8687/cough/0096.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050754.json b/conversations/conv_050754.json
deleted file mode 100644
index c5cea054caf217c53138701705295be4a7f76dbc..0000000000000000000000000000000000000000
--- a/conversations/conv_050754.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.231975631114602,
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-      "start_frame": 0,
-      "duration_frames": 83711,
-      "overlap": false,
-      "utterance_id": "2691-156750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2691-156750.flac |",
-      "real_speaker_id": "2691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.487435278621164,
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-      "utterance_id": "8193-116804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116804.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1789-142896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-142896.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "real_speaker_id": "2691",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-142896.flac |",
-      "real_speaker_id": "1789",
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-      "segment_id": "seg0006",
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-      "utterance_id": "8193-116805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8193-116805.flac |",
-      "real_speaker_id": "8193",
-      "position_frames": 64126
-    }
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/433717.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
-      "duration": 0.205578231292517,
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_9.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2691/cough/0057.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1789/laugh/0022.wav",
-      "duration": 1.18,
-      "start_time": 30.517008129816606,
-      "speaker_id": "1789"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1789/cough/0016.wav",
-      "duration": 0.30054359849400897,
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-      "speaker_id": "1789"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8193/cough/0044.wav",
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-      "speaker_id": "8193"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050755.json b/conversations/conv_050755.json
deleted file mode 100644
index 26998bd1114306166fd261893ab177b51d9992be..0000000000000000000000000000000000000000
--- a/conversations/conv_050755.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3142-160977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
-      "real_speaker_id": "3142",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.368542031117593,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7335-290365.flac |",
-      "real_speaker_id": "7335",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
-      "real_speaker_id": "3142",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7335-290365.flac |",
-      "real_speaker_id": "7335",
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-      "speaker_id": 0,
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-      "utterance_id": "3142-160977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
-      "real_speaker_id": "3142",
-      "position_frames": 118660
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7335-290365.flac |",
-      "real_speaker_id": "7335",
-      "position_frames": 150369
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-    {
-      "segment_id": "seg0006",
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-      "start_time": 30.13496926015408,
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-      "utterance_id": "4406-16883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4406-16883.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-      "speaker_id": "4406"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050758.json b/conversations/conv_050758.json
deleted file mode 100644
index cb1758da4e3fc4bab0f3fb7b3f62a431f027eff7..0000000000000000000000000000000000000000
--- a/conversations/conv_050758.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5439-31625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31625.flac |",
-      "real_speaker_id": "5439",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.0334315678714505,
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-      "real_speaker_id": "8410",
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-      "real_speaker_id": "5439",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8410-278217.flac |",
-      "real_speaker_id": "8410",
-      "position_frames": 56664
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration": 6.339613924648723,
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-      "utterance_id": "5439-31624",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5439-31624.flac |",
-      "real_speaker_id": "5439",
-      "position_frames": 92023
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.804946268371722,
-      "end_time": 32.0,
-      "duration": 1.1950537316282777,
-      "start_frame": 492879,
-      "duration_frames": 19120,
-      "overlap": false,
-      "utterance_id": "543-133211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/543-133211.flac |",
-      "real_speaker_id": "543",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-      "start_time": 6.495328313326155
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_13.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.18,
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-      "speaker_id": "543"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050762.json b/conversations/conv_050762.json
deleted file mode 100644
index 5ca104b89228d91731c7d17e759205734d370f65..0000000000000000000000000000000000000000
--- a/conversations/conv_050762.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.964240037839375,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "202-129387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-129387.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.2494212304365355,
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-      "utterance_id": "2194-141248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141248.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 0
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-      "real_speaker_id": "5287",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "2194-150469",
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-      "real_speaker_id": "2194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.46891051586219,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5287-39165.flac |",
-      "real_speaker_id": "5287",
-      "position_frames": 65453
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.682772580926244,
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-      "duration": 5.281467456913132,
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-      "utterance_id": "2194-150469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-150469.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 86616
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050769.json b/conversations/conv_050769.json
deleted file mode 100644
index c91719d34944b8c4473276fad72bc2271da93b6f..0000000000000000000000000000000000000000
--- a/conversations/conv_050769.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.324662833159591,
-      "duration": 5.324662833159591,
-      "start_frame": 0,
-      "duration_frames": 85194,
-      "overlap": false,
-      "utterance_id": "8459-292348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-292348.flac |",
-      "real_speaker_id": "8459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.427548672209787,
-      "end_time": 10.022874668218844,
-      "duration": 4.595325996009056,
-      "start_frame": 86840,
-      "duration_frames": 73525,
-      "overlap": false,
-      "utterance_id": "175-127696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-127696.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.340251826042927,
-      "end_time": 15.0371456814084,
-      "duration": 4.696893855365474,
-      "start_frame": 165444,
-      "duration_frames": 75150,
-      "overlap": false,
-      "utterance_id": "8459-292348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8459-292348.flac |",
-      "real_speaker_id": "8459",
-      "position_frames": 85194
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.729468115315523,
-      "end_time": 20.379376869786395,
-      "duration": 5.649908754470871,
-      "start_frame": 235671,
-      "duration_frames": 90398,
-      "overlap": true,
-      "utterance_id": "175-127696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/175-127696.flac |",
-      "real_speaker_id": "175",
-      "position_frames": 73525
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.112010708513267,
-      "end_time": 27.847646488441903,
-      "duration": 6.735635779928636,
-      "start_frame": 337792,
-      "duration_frames": 107770,
-      "overlap": false,
-      "utterance_id": "7246-110053",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-110053.flac |",
-      "real_speaker_id": "7246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.343266308830348,
-      "end_time": 32.0,
-      "duration": 3.656733691169652,
-      "start_frame": 453492,
-      "duration_frames": 58507,
-      "overlap": false,
-      "utterance_id": "7246-86779",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7246-86779.flac |",
-      "real_speaker_id": "7246",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
-      "start_time": 3.472824998596355
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
-      "duration": 1.7491600008268833,
-      "start_time": 2.5382787233171293
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7246/laugh/0070.wav",
-      "duration": 1.051770610926529,
-      "start_time": 28.011403285476558,
-      "speaker_id": "7246"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7246/cough/0086.wav",
-      "duration": 1.04,
-      "start_time": 27.922314282805335,
-      "speaker_id": "7246"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7246/laugh/0119.wav",
-      "duration": 1.230151535559015,
-      "start_time": 26.92512183197941,
-      "speaker_id": "7246"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7246/cough/0099.wav",
-      "duration": 0.3360682402977813,
-      "start_time": 27.934664736360027,
-      "speaker_id": "7246"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050774.json b/conversations/conv_050774.json
deleted file mode 100644
index 7cffa5c224feab105840dffa530f1ccdbfab75d6..0000000000000000000000000000000000000000
--- a/conversations/conv_050774.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.64361034697464,
-      "duration": 4.64361034697464,
-      "start_frame": 0,
-      "duration_frames": 74297,
-      "overlap": false,
-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.323126359329077,
-      "end_time": 9.371506959614427,
-      "duration": 4.04838060028535,
-      "start_frame": 85170,
-      "duration_frames": 64774,
-      "overlap": false,
-      "utterance_id": "5740-97593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97593.flac |",
-      "real_speaker_id": "5740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.164094722011809,
-      "end_time": 14.666377116239659,
-      "duration": 4.5022823942278505,
-      "start_frame": 162625,
-      "duration_frames": 72036,
-      "overlap": false,
-      "utterance_id": "4955-28245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28245.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.005913686165872,
-      "end_time": 19.744152229697818,
-      "duration": 4.738238543531946,
-      "start_frame": 240094,
-      "duration_frames": 75811,
-      "overlap": false,
-      "utterance_id": "5740-97593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5740-97593.flac |",
-      "real_speaker_id": "5740",
-      "position_frames": 64774
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.79085300699223,
-      "end_time": 24.8358870402553,
-      "duration": 5.045034033263071,
-      "start_frame": 316653,
-      "duration_frames": 80720,
-      "overlap": true,
-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.04617584521737,
-      "end_time": 30.99649575694056,
-      "duration": 4.950319911723193,
-      "start_frame": 416738,
-      "duration_frames": 79205,
-      "overlap": false,
-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 74297
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.461993041789313,
-      "end_time": 32.0,
-      "duration": 0.538006958210687,
-      "start_frame": 503391,
-      "duration_frames": 8608,
-      "overlap": false,
-      "utterance_id": "4955-28245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28245.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 72036
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
-      "duration": 12.0176477068173,
-      "start_time": 17.38504178590687
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.589317098722184,
-      "start_time": 14.31951800637563
-    },
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
-      "duration": 3.3081817640494533,
-      "start_time": 23.042069684054386
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5740/cough/0119.wav",
-      "duration": 0.4060269369533447,
-      "start_time": 19.93699100209176,
-      "speaker_id": "5740"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6178/laugh/0078.wav",
-      "duration": 0.8282918001139212,
-      "start_time": 25.143578448435797,
-      "speaker_id": "6178"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050778.json b/conversations/conv_050778.json
deleted file mode 100644
index cd1117c28d0d91c9efc04d685edfc153836f6c6b..0000000000000000000000000000000000000000
--- a/conversations/conv_050778.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.673809327416365,
-      "duration": 6.673809327416365,
-      "start_frame": 0,
-      "duration_frames": 106780,
-      "overlap": false,
-      "utterance_id": "7342-254918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-254918.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.278037442399797,
-      "end_time": 11.46944334047721,
-      "duration": 5.191405898077413,
-      "start_frame": 100448,
-      "duration_frames": 83062,
-      "overlap": true,
-      "utterance_id": "7342-73961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-73961.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.41036965613537,
-      "end_time": 16.733612295454872,
-      "duration": 3.3232426393195036,
-      "start_frame": 214565,
-      "duration_frames": 53171,
-      "overlap": false,
-      "utterance_id": "7874-110243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
-      "real_speaker_id": "7874",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.227410280822124,
-      "end_time": 22.332152192620214,
-      "duration": 5.104741911798088,
-      "start_frame": 275638,
-      "duration_frames": 81675,
-      "overlap": false,
-      "utterance_id": "1061-146197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1061-146197.flac |",
-      "real_speaker_id": "1061",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.999358369737113,
-      "end_time": 29.447918463238516,
-      "duration": 6.448560093501401,
-      "start_frame": 367989,
-      "duration_frames": 103176,
-      "overlap": true,
-      "utterance_id": "7874-110243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
-      "real_speaker_id": "7874",
-      "position_frames": 53171
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.984673844861163,
-      "end_time": 32.0,
-      "duration": 1.0153261551388368,
-      "start_frame": 495754,
-      "duration_frames": 16245,
-      "overlap": false,
-      "utterance_id": "7342-73961",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7342-73961.flac |",
-      "real_speaker_id": "7342",
-      "position_frames": 83062
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 14.212320959737301,
-      "start_time": 16.235869659418857
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_2.wav",
-      "duration": 3.0985034013605444,
-      "start_time": 24.34526518223555
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.846352556579158,
-      "start_time": 0.4415364037851904
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7342/laugh/0086.wav",
-      "duration": 0.5294611953682355,
-      "start_time": 5.548877682611345,
-      "speaker_id": "7342"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7342/cough/0012.wav",
-      "duration": 0.5188546958233738,
-      "start_time": 5.674951776545365,
-      "speaker_id": "7342"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7874/laugh/0078.wav",
-      "duration": 1.2775382926192516,
-      "start_time": 13.758471389269642,
-      "speaker_id": "7874"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7874/cough/0055.wav",
-      "duration": 0.92,
-      "start_time": 15.671367566371272,
-      "speaker_id": "7874"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050781.json b/conversations/conv_050781.json
deleted file mode 100644
index 6d29f816e21be190ac5f636aa401dbbea8401817..0000000000000000000000000000000000000000
--- a/conversations/conv_050781.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.744424253799923,
-      "duration": 4.744424253799923,
-      "start_frame": 0,
-      "duration_frames": 75910,
-      "overlap": false,
-      "utterance_id": "6923-82334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82334.flac |",
-      "real_speaker_id": "6923",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.621691744804051,
-      "end_time": 8.750740315226064,
-      "duration": 3.1290485704220132,
-      "start_frame": 89947,
-      "duration_frames": 50064,
-      "overlap": true,
-      "utterance_id": "512-124549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124549.flac |",
-      "real_speaker_id": "512",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.228363143614285,
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-      "duration": 4.98487217887848,
-      "start_frame": 147653,
-      "duration_frames": 79757,
-      "overlap": true,
-      "utterance_id": "6923-82334",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82334.flac |",
-      "real_speaker_id": "6923",
-      "position_frames": 75910
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.489638493953837,
-      "end_time": 20.019657909421245,
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-      "start_frame": 247834,
-      "duration_frames": 72480,
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-      "utterance_id": "512-124549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/512-124549.flac |",
-      "real_speaker_id": "512",
-      "position_frames": 50064
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.7674682483299,
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-      "duration": 3.8446820315898007,
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-      "utterance_id": "4915-245690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 6.368694816886411,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6923-82337.flac |",
-      "real_speaker_id": "6923",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/512/cough/0087.wav",
-      "duration": 0.8,
-      "start_time": 4.728963137288036,
-      "speaker_id": "512"
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-      "event_class": "cough",
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-      "duration": 0.34638938943951075,
-      "start_time": 20.202851220375393,
-      "speaker_id": "512"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4915/laugh/0081.wav",
-      "duration": 1.36,
-      "start_time": 20.006685935725034,
-      "speaker_id": "4915"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6923/laugh/0106.wav",
-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "6923"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050786.json b/conversations/conv_050786.json
deleted file mode 100644
index 767e3f8352053d02de7401cfd505937c8899bb75..0000000000000000000000000000000000000000
--- a/conversations/conv_050786.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.24931810878992,
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-      "overlap": false,
-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.197473758943376,
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 67989
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.099748969029545,
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-      "overlap": false,
-      "utterance_id": "8591-284445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284445.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.754439439038155,
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 124823
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6177-22698.flac |",
-      "real_speaker_id": "6177",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.34260343127377,
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-      "utterance_id": "8591-284444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8591-284444.flac |",
-      "real_speaker_id": "8591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.06345350027511,
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-      "duration": 0.9365464997248907,
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-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 195593
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "8591"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050790.json b/conversations/conv_050790.json
deleted file mode 100644
index 776e1894045e81cfd68bbbcac50251cdbc16f12d..0000000000000000000000000000000000000000
--- a/conversations/conv_050790.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.678663802869195,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5054-1187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-1187.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.167556090867815,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.556718017055022,
-      "end_time": 18.645334840598817,
-      "duration": 6.088616823543794,
-      "start_frame": 200907,
-      "duration_frames": 97417,
-      "overlap": false,
-      "utterance_id": "6000-86686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-86686.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.99975399839822,
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-      "utterance_id": "6727-10344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6727-10344.flac |",
-      "real_speaker_id": "6727",
-      "position_frames": 98993
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.71949515660836,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-86686.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 97417
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
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-      "event_class": "Cat",
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-      "start_time": 10.963173880112036
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_050797.json b/conversations/conv_050797.json
deleted file mode 100644
index f33b30846f896896cbed35fbc994ba9de17ca344..0000000000000000000000000000000000000000
--- a/conversations/conv_050797.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "5076-61727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-61727.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7823-103122.flac |",
-      "real_speaker_id": "7823",
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-      "utterance_id": "402-130001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-130001.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.556581305134978,
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-      "overlap": true,
-      "utterance_id": "402-126843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-126843.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5076-61727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-61727.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 58051
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 66694,
-      "overlap": false,
-      "utterance_id": "7823-103122",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7823-103122.flac |",
-      "real_speaker_id": "7823",
-      "position_frames": 51893
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.53762367716847,
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-      "utterance_id": "5076-287393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5076-287393.flac |",
-      "real_speaker_id": "5076",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050801.json b/conversations/conv_050801.json
deleted file mode 100644
index c603b8fb7ace9d41322bccd56ba001eed3ce52b9..0000000000000000000000000000000000000000
--- a/conversations/conv_050801.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.635208854849756,
-      "duration": 4.635208854849756,
-      "start_frame": 0,
-      "duration_frames": 74163,
-      "overlap": false,
-      "utterance_id": "54-121079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/54-121079.flac |",
-      "real_speaker_id": "54",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.200464960793305,
-      "end_time": 11.683367922333574,
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-      "utterance_id": "728-348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/728-348.flac |",
-      "real_speaker_id": "728",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.156946656664655,
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-      "duration_frames": 106519,
-      "overlap": false,
-      "utterance_id": "54-121080",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/54-121080.flac |",
-      "real_speaker_id": "54",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "6352",
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-    },
-    {
-      "segment_id": "seg0004",
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-    {
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/728/laugh/0008.wav",
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-      "speaker_id": "728"
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-      "event_class": "laugh",
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-      "speaker_id": "6352"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/728/laugh/0101.wav",
-      "duration": 1.2161426881229074,
-      "start_time": 23.383101090463423,
-      "speaker_id": "728"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/54/cough/0057.wav",
-      "duration": 0.8273671772055553,
-      "start_time": 28.76155818995873,
-      "speaker_id": "54"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050806.json b/conversations/conv_050806.json
deleted file mode 100644
index 195ed902dc40fbae59227a23bda3865d8a85e459..0000000000000000000000000000000000000000
--- a/conversations/conv_050806.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.479811145462664,
-      "duration": 4.479811145462664,
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-      "overlap": false,
-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.419328570222704,
-      "end_time": 9.193404831684337,
-      "duration": 3.774076261461632,
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-      "duration_frames": 60385,
-      "overlap": false,
-      "utterance_id": "3436-172162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172162.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.182314407427977,
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-      "duration": 3.674816656105911,
-      "start_frame": 162917,
-      "duration_frames": 58797,
-      "overlap": false,
-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.517186518610638,
-      "end_time": 21.317213222187345,
-      "duration": 6.800026703576707,
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-      "duration_frames": 108800,
-      "overlap": true,
-      "utterance_id": "3436-172171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.58645485948788,
-      "end_time": 29.114970012089127,
-      "duration": 6.528515152601249,
-      "start_frame": 361383,
-      "duration_frames": 104456,
-      "overlap": false,
-      "utterance_id": "4042-12369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4042-12369.flac |",
-      "real_speaker_id": "4042",
-      "position_frames": 58797
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.26381608570059,
-      "end_time": 32.0,
-      "duration": 2.73618391429941,
-      "start_frame": 468221,
-      "duration_frames": 43778,
-      "overlap": false,
-      "utterance_id": "3436-172171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3436-172171.flac |",
-      "real_speaker_id": "3436",
-      "position_frames": 108800
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-    {
-      "event_class": "Dishes",
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-      "duration": 0.22993197278911565,
-      "start_time": 30.856853199419053
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4042/cough/0127.wav",
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-      "event_class": "cough",
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-      "duration": 0.9137211276755524,
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-      "speaker_id": "3436"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050810.json b/conversations/conv_050810.json
deleted file mode 100644
index 21db7e4883670950bef6387114d238d55be03c8a..0000000000000000000000000000000000000000
--- a/conversations/conv_050810.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.910293594707994,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6368-39664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-39664.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.6061803360513327,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5635-44582.flac |",
-      "real_speaker_id": "5635",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6368-230929.flac |",
-      "real_speaker_id": "6368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.093296667378032,
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-      "utterance_id": "5635-53458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5635-53458.flac |",
-      "real_speaker_id": "5635",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.408050517335706,
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-      "utterance_id": "1235-135883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135883.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.37090514314418,
-      "end_time": 31.910293594707994,
-      "duration": 6.539388451563811,
-      "start_frame": 405934,
-      "duration_frames": 104630,
-      "overlap": false,
-      "utterance_id": "1235-135884",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1235-135884.flac |",
-      "real_speaker_id": "1235",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
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-      "start_time": 16.925095533192646,
-      "speaker_id": "5635"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050817.json b/conversations/conv_050817.json
deleted file mode 100644
index 9ecffaa00a5086e5bcd4980218ebc5462d9448a8..0000000000000000000000000000000000000000
--- a/conversations/conv_050817.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.488198303920196,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.0331251645331765,
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-      "utterance_id": "8156-276902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8156-276902.flac |",
-      "real_speaker_id": "8156",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "8156-104526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8156-104526.flac |",
-      "real_speaker_id": "8156",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "overlap": true,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 105104
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.81153939977095,
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-      "utterance_id": "2574-128303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2574-128303.flac |",
-      "real_speaker_id": "2574",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "start_time": 0,
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3540/laugh/0004.wav",
-      "duration": 0.7251414648027555,
-      "start_time": 22.277134013803067,
-      "speaker_id": "3540"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050826.json b/conversations/conv_050826.json
deleted file mode 100644
index e12a78055511e6a0a398cb4da838c9ec6e383b3c..0000000000000000000000000000000000000000
--- a/conversations/conv_050826.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.4660247366017267,
-      "duration": 3.4660247366017267,
-      "start_frame": 0,
-      "duration_frames": 55456,
-      "overlap": false,
-      "utterance_id": "6014-32856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6014-32856.flac |",
-      "real_speaker_id": "6014",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.298517249185336,
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-      "duration": 6.473738921311998,
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-      "utterance_id": "8169-118200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
-      "real_speaker_id": "8169",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7932-110056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7932-110056.flac |",
-      "real_speaker_id": "7932",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "position_frames": 55456
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 95118
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-    {
-      "segment_id": "seg0005",
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-      "duration": 2.1386180420878205,
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-      "utterance_id": "8169-118202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118202.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_0.wav",
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-      "event_class": "Running_water",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6014/laugh/0022.wav",
-      "duration": 0.9090606625647404,
-      "start_time": 3.722366026806789,
-      "speaker_id": "6014"
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-      "event_class": "laugh",
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-      "duration": 1.1681372095191074,
-      "start_time": 23.419442500750986,
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-}
\ No newline at end of file
diff --git a/conversations/conv_050830.json b/conversations/conv_050830.json
deleted file mode 100644
index 1a2bb25c85714253d8b4d8972b0bf6e90f4d3537..0000000000000000000000000000000000000000
--- a/conversations/conv_050830.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1926-147979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147979.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.267921268631055,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98645.flac |",
-      "real_speaker_id": "7478",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 9.337907213918283,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
-      "real_speaker_id": "1926",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.431904197066622,
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-      "utterance_id": "7478-98644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7478-98644.flac |",
-      "real_speaker_id": "7478",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 21.759607195785247,
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-      "overlap": false,
-      "utterance_id": "1926-143879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-143879.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 26.85241682674111,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 48461
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-    {
-      "segment_id": "seg0007",
-      "speaker_id": 0,
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-      "utterance_id": "1926-147979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147979.flac |",
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-      "position_frames": 63223
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_050840.json b/conversations/conv_050840.json
deleted file mode 100644
index bc1fabe3340bc14ffb45f01204489ce345754185..0000000000000000000000000000000000000000
--- a/conversations/conv_050840.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3691-178118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178118.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.224616943003715,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60489.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
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-      "utterance_id": "3691-178109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178109.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60489.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 73404
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.166296389857806,
-      "end_time": 27.457718102905854,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178118.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 87690
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.34587654666384,
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-      "overlap": false,
-      "utterance_id": "6006-60480",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6006-60480.flac |",
-      "real_speaker_id": "6006",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6006/cough/0092.wav",
-      "duration": 1.2339403172472714,
-      "start_time": 30.76605968275273,
-      "speaker_id": "6006"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050847.json b/conversations/conv_050847.json
deleted file mode 100644
index 0ae6aa6c94620486ceb18cd5c150e4e51231706b..0000000000000000000000000000000000000000
--- a/conversations/conv_050847.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.444288196381347,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7242-275160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275160.flac |",
-      "real_speaker_id": "7242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7789-258266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7789-258266.flac |",
-      "real_speaker_id": "7789",
-      "position_frames": 0
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-    {
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-      "utterance_id": "7242-275146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275146.flac |",
-      "real_speaker_id": "7242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.265653172428111,
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-      "utterance_id": "6211-66280",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6211-66280.flac |",
-      "real_speaker_id": "6211",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.432270361563972,
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-      "real_speaker_id": "7242",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7242-275146.flac |",
-      "real_speaker_id": "7242",
-      "position_frames": 86568
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7242/laugh/0127.wav",
-      "duration": 1.64,
-      "start_time": 6.726289598329963,
-      "speaker_id": "7242"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7242/laugh/0059.wav",
-      "duration": 1.32,
-      "start_time": 18.988809066357135,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7242/laugh/0021.wav",
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-      "speaker_id": "7242"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050851.json b/conversations/conv_050851.json
deleted file mode 100644
index e384a75f56afe40f2626a20d1288700dbc09b1e2..0000000000000000000000000000000000000000
--- a/conversations/conv_050851.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "6167-73973",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-73973.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-155990.flac |",
-      "real_speaker_id": "233",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6167-282391.flac |",
-      "real_speaker_id": "6167",
-      "position_frames": 90498
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 22.63566597423607,
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-      "speaker_id": "6167"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050856.json b/conversations/conv_050856.json
deleted file mode 100644
index 5a9d82dc1be89a1c8c961ede877777b0b33721e9..0000000000000000000000000000000000000000
--- a/conversations/conv_050856.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.38992803602689,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1120.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 79200
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-      "utterance_id": "5043-28402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28402.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.15823174268774,
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-      "utterance_id": "345-1119",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/345-1119.flac |",
-      "real_speaker_id": "345",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050867.json b/conversations/conv_050867.json
deleted file mode 100644
index 2b3faefbac5b36e1e803f5a7bec7fe498d559865..0000000000000000000000000000000000000000
--- a/conversations/conv_050867.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-183930.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 138856
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050871.json b/conversations/conv_050871.json
deleted file mode 100644
index e5dc01fe5c8ccede1313f3beb928e4b004a3436a..0000000000000000000000000000000000000000
--- a/conversations/conv_050871.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.08,
-      "start_time": 26.3065206138191,
-      "speaker_id": "4854"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050884.json b/conversations/conv_050884.json
deleted file mode 100644
index 4c35c4dbcafb5c6c8d824e5599f69e713129c40b..0000000000000000000000000000000000000000
--- a/conversations/conv_050884.json
+++ /dev/null
@@ -1,122 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "248-130697",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130697.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.402865944174172,
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-      "utterance_id": "8119-115686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115686.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.092102735832032,
-      "end_time": 18.37610733844367,
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-      "overlap": false,
-      "utterance_id": "248-130652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130652.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.087659664266294,
-      "end_time": 22.77837093590179,
-      "duration": 3.690711271635495,
-      "start_frame": 305402,
-      "duration_frames": 59051,
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-      "utterance_id": "8119-115686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115686.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 90770
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.884634884943818,
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-      "utterance_id": "248-130652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/248-130652.flac |",
-      "real_speaker_id": "248",
-      "position_frames": 68544
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 27.684779146998913,
-      "end_time": 32.0,
-      "duration": 4.315220853001087,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115687.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
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-      "start_time": 1.100424155053773
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_050885.json b/conversations/conv_050885.json
deleted file mode 100644
index 011119611e5c772852d91797fa8cefa0cc099ff3..0000000000000000000000000000000000000000
--- a/conversations/conv_050885.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "1291-138096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138096.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
-    },
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-      "speaker_id": 2,
-      "start_time": 7.182737905587877,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4703-73029.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1291-138109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138109.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.17160953624562,
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-      "utterance_id": "7518-86741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.245409777779866,
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-      "duration_frames": 74214,
-      "overlap": false,
-      "utterance_id": "1291-138273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138273.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 4.499754154627539,
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-      "duration_frames": 71996,
-      "overlap": false,
-      "utterance_id": "7518-86741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7518-86741.flac |",
-      "real_speaker_id": "7518",
-      "position_frames": 60611
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_7.wav",
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-      "start_time": 7.81737939057767
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1291/cough/0010.wav",
-      "duration": 1.0,
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-      "speaker_id": "1291"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
-      "start_time": 22.790096209454422,
-      "speaker_id": "1291"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050888.json b/conversations/conv_050888.json
deleted file mode 100644
index 9a0d38441c2335db06d08bbe7231155fa7c5296d..0000000000000000000000000000000000000000
--- a/conversations/conv_050888.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1342-130497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-130497.flac |",
-      "real_speaker_id": "1342",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1342-133247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1342-133247.flac |",
-      "real_speaker_id": "1342",
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-    },
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
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-      "segment_id": "seg0004",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 150279
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 0.9400460530534791,
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-      "speaker_id": "2238"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050889.json b/conversations/conv_050889.json
deleted file mode 100644
index 097a78b1766ee7d74d02679c99f4012028e7fc44..0000000000000000000000000000000000000000
--- a/conversations/conv_050889.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "position_frames": 0
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6550/laugh/0008.wav",
-      "duration": 1.28,
-      "start_time": 6.073844098922796,
-      "speaker_id": "6550"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6550/cough/0049.wav",
-      "duration": 1.1579888601511765,
-      "start_time": 6.131169609397366,
-      "speaker_id": "6550"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8506/laugh/0066.wav",
-      "duration": 1.28,
-      "start_time": 12.371208963882463,
-      "speaker_id": "8506"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4234/laugh/0002.wav",
-      "duration": 1.1050531204425378,
-      "start_time": 30.894946879557462,
-      "speaker_id": "4234"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050892.json b/conversations/conv_050892.json
deleted file mode 100644
index 65eff6d08920b990a450d4b387e4b84a0543608c..0000000000000000000000000000000000000000
--- a/conversations/conv_050892.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.58518524199456,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3885-7167",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-7167.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.442583486103113,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.649004151840405,
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-      "utterance_id": "8630-305213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305213.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.828657104857477,
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-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 75434
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.006638787088935,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3885-7167.flac |",
-      "real_speaker_id": "3885",
-      "position_frames": 90632
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.07993222519546,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 138089
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-    {
-      "event_class": "Cat",
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-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "3885"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8334/laugh/0090.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8334/laugh/0012.wav",
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-      "start_time": 20.892848741687995,
-      "speaker_id": "8334"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050902.json b/conversations/conv_050902.json
deleted file mode 100644
index 356ecf7c4ffd0da031bd99a14b8987e3bc43a790..0000000000000000000000000000000000000000
--- a/conversations/conv_050902.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2911-7601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-7601.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1649-150127.flac |",
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-      "utterance_id": "2911-12359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-12359.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.819774333724556,
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-      "utterance_id": "1649-5776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1649-5776.flac |",
-      "real_speaker_id": "1649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.48038980263624,
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-      "utterance_id": "2911-15045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2911-15045.flac |",
-      "real_speaker_id": "2911",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_050905.json b/conversations/conv_050905.json
deleted file mode 100644
index c99a7ccf4b796efaa7509eadc667e2708b42dc4b..0000000000000000000000000000000000000000
--- a/conversations/conv_050905.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5767-48579",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
-      "real_speaker_id": "5767",
-      "position_frames": 0
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-      "real_speaker_id": "8226",
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-      "real_speaker_id": "8226",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5767-48579.flac |",
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-    {
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_050913.json b/conversations/conv_050913.json
deleted file mode 100644
index 7a5ca532164066efb45efde4a6f289f5771fe33f..0000000000000000000000000000000000000000
--- a/conversations/conv_050913.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.53243360952371,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "5719-233361",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "6906",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5719/laugh/0125.wav",
-      "duration": 0.7001517011978069,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1088/laugh/0086.wav",
-      "duration": 1.6,
-      "start_time": 22.812025307745287,
-      "speaker_id": "1088"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050914.json b/conversations/conv_050914.json
deleted file mode 100644
index e5fe7001c86e2e9593a4c9077098a83e6a6f54ef..0000000000000000000000000000000000000000
--- a/conversations/conv_050914.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.39756199976052,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.853010702885827,
-      "duration": 5.853010702885827,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2384-152900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2384-152900.flac |",
-      "real_speaker_id": "2384",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.336467912617797,
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-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.778470821239761,
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-      "duration": 4.693411706772103,
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-      "duration_frames": 75094,
-      "overlap": false,
-      "utterance_id": "3972-170212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3972-170212.flac |",
-      "real_speaker_id": "3972",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.56680557329534,
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-      "duration": 3.6335641546233512,
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-      "duration_frames": 58137,
-      "overlap": false,
-      "utterance_id": "3972-185074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3972-185074.flac |",
-      "real_speaker_id": "3972",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.68859485631897,
-      "end_time": 27.271256256691238,
-      "duration": 5.582661400372265,
-      "start_frame": 347017,
-      "duration_frames": 89322,
-      "overlap": false,
-      "utterance_id": "2384-152900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2384-152900.flac |",
-      "real_speaker_id": "2384",
-      "position_frames": 93648
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.689365918989505,
-      "end_time": 31.39756199976052,
-      "duration": 3.708196080771012,
-      "start_frame": 443029,
-      "duration_frames": 59331,
-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 67573
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2384/laugh/0066.wav",
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050918.json b/conversations/conv_050918.json
deleted file mode 100644
index 55cb0eb55367865ae6233ab6addbf096daccb7be..0000000000000000000000000000000000000000
--- a/conversations/conv_050918.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.33995516742797,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 62650,
-      "overlap": false,
-      "utterance_id": "7938-109179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-109179.flac |",
-      "real_speaker_id": "7938",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152160.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-110127.flac |",
-      "real_speaker_id": "7938",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.602333634028014,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2309-152160.flac |",
-      "real_speaker_id": "2309",
-      "position_frames": 79483
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.954204261798626,
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-      "overlap": false,
-      "utterance_id": "6912-70847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.85472384747912,
-      "end_time": 31.33995516742797,
-      "duration": 4.4852313199488485,
-      "start_frame": 429675,
-      "duration_frames": 71763,
-      "overlap": true,
-      "utterance_id": "7938-109179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7938-109179.flac |",
-      "real_speaker_id": "7938",
-      "position_frames": 62650
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7938/laugh/0020.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2309/laugh/0142.wav",
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-      "start_time": 8.984757415827225,
-      "speaker_id": "2309"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7938/cough/0033.wav",
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-      "duration": 1.36,
-      "start_time": 26.400804807546415,
-      "speaker_id": "6912"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050922.json b/conversations/conv_050922.json
deleted file mode 100644
index 07b8c9782d083be92af3a3fd87c220a043ff0b40..0000000000000000000000000000000000000000
--- a/conversations/conv_050922.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2301-134424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-134424.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.6780086033618375,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32875.flac |",
-      "real_speaker_id": "5682",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "6060-106611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-106611.flac |",
-      "real_speaker_id": "6060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.016684741704907,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-157880.flac |",
-      "real_speaker_id": "2301",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "6060-58090",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "end_time": 32.0,
-      "duration": 1.89999504667869,
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-      "overlap": false,
-      "utterance_id": "2301-134424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2301-134424.flac |",
-      "real_speaker_id": "2301",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54058.wav",
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-      "start_time": 15.714156198617124,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2301/laugh/0120.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050923.json b/conversations/conv_050923.json
deleted file mode 100644
index fc35bf05d5351e92e58481bcdc01d6c932009d52..0000000000000000000000000000000000000000
--- a/conversations/conv_050923.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1603-139324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139324.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139324.flac |",
-      "real_speaker_id": "1603",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8329-279775",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8329-279775.flac |",
-      "real_speaker_id": "8329",
-      "position_frames": 80778
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "event_class": "laugh",
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-      "duration": 0.84,
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-      "event_class": "cough",
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-      "duration": 0.8630994631752327,
-      "start_time": 31.13690053682477,
-      "speaker_id": "8329"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050934.json b/conversations/conv_050934.json
deleted file mode 100644
index 9175afa140f1d311b1b61da0e20f89d08d1cbd29..0000000000000000000000000000000000000000
--- a/conversations/conv_050934.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "2748-160959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160959.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.243150937809688,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160959.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-204.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7339-86804.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-204.flac |",
-      "real_speaker_id": "92",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7339-86765.flac |",
-      "real_speaker_id": "7339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
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-  "foreground_events": [
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_050938.json b/conversations/conv_050938.json
deleted file mode 100644
index 48096c8c048962c42269e8dc65c8d06ad4713172..0000000000000000000000000000000000000000
--- a/conversations/conv_050938.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "real_speaker_id": "5322",
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-      "real_speaker_id": "27",
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-  ],
-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050943.json b/conversations/conv_050943.json
deleted file mode 100644
index 112207b282d441364137da5410677deab62f03b5..0000000000000000000000000000000000000000
--- a/conversations/conv_050943.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "3717-21493",
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-      "real_speaker_id": "3717",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_050944.json b/conversations/conv_050944.json
deleted file mode 100644
index 2699e2512e26da9de271fab07a929228a1b7e839..0000000000000000000000000000000000000000
--- a/conversations/conv_050944.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147968.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
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-      "position_frames": 71424
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-      "start_time": 28.66388083325793,
-      "speaker_id": "7559"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050952.json b/conversations/conv_050952.json
deleted file mode 100644
index 910f448df4a37cc5c763aad0b6156b0ee568074d..0000000000000000000000000000000000000000
--- a/conversations/conv_050952.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89390.flac |",
-      "real_speaker_id": "8194",
-      "position_frames": 0
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-      "real_speaker_id": "8194",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128344.flac |",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_050955.json b/conversations/conv_050955.json
deleted file mode 100644
index 45ee1ee7c7446dee6be64b385e6ae29eab493427..0000000000000000000000000000000000000000
--- a/conversations/conv_050955.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4160-14187.flac |",
-      "real_speaker_id": "4160",
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-      "real_speaker_id": "4428",
-      "position_frames": 85520
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_050959.json b/conversations/conv_050959.json
deleted file mode 100644
index 633eb0a47a7c82767c162296b3eb9ad2c5434f15..0000000000000000000000000000000000000000
--- a/conversations/conv_050959.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-39475.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_050963.json b/conversations/conv_050963.json
deleted file mode 100644
index 1cf0af87f4750a514f8c6399b907c780984c1875..0000000000000000000000000000000000000000
--- a/conversations/conv_050963.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.54145840166741,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14486.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "position_frames": 0
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-      "real_speaker_id": "1225",
-      "position_frames": 100928
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14487.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050975.json b/conversations/conv_050975.json
deleted file mode 100644
index ea1d730fc5a1a3b173f17409cea7324e90b98e21..0000000000000000000000000000000000000000
--- a/conversations/conv_050975.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8765-295000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8765-295000.flac |",
-      "real_speaker_id": "8765",
-      "position_frames": 0
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-      "position_frames": 0
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-      "start_time": 16.37278898517856,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290391.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8765-295000.flac |",
-      "real_speaker_id": "8765",
-      "position_frames": 70725
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-      "segment_id": "seg0005",
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-      "utterance_id": "8565-290393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290393.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "speaker_id": "8565"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050978.json b/conversations/conv_050978.json
deleted file mode 100644
index a7fb9a51a56cf0d55d22a0c75a7f1ef650c00f15..0000000000000000000000000000000000000000
--- a/conversations/conv_050978.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "884",
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-      "position_frames": 74472
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-      "speaker_id": 2,
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-      "real_speaker_id": "6636",
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-      "position_frames": 145458
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050979.json b/conversations/conv_050979.json
deleted file mode 100644
index b89e0ae121691959a151c9bb215315407d5d71f6..0000000000000000000000000000000000000000
--- a/conversations/conv_050979.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7825-258978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7825-258978.flac |",
-      "real_speaker_id": "7825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4263-14180.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "7825",
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-      "real_speaker_id": "4263",
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-    {
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-  "background_events": [
-    {
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-    {
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-      "speaker_id": "7825"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_050980.json b/conversations/conv_050980.json
deleted file mode 100644
index 38570ed9e732bf49fd714eb685269f5fb2729748..0000000000000000000000000000000000000000
--- a/conversations/conv_050980.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4563-26447.flac |",
-      "real_speaker_id": "4563",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 28.56954989288654,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4362-15663.flac |",
-      "real_speaker_id": "4362",
-      "position_frames": 56313
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-      "speaker_id": "7555"
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-}
\ No newline at end of file
diff --git a/conversations/conv_050996.json b/conversations/conv_050996.json
deleted file mode 100644
index e4835aab4e609d9ea430386f8ea7522499447b4a..0000000000000000000000000000000000000000
--- a/conversations/conv_050996.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.0351201020273,
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-      "overlap": true,
-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
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-      "segment_id": "seg0002",
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-      "utterance_id": "5506-69895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69895.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "296-142727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-142727.flac |",
-      "real_speaker_id": "296",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
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-      "utterance_id": "296-141721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/296-141721.flac |",
-      "real_speaker_id": "296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.18400891786651,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69895.flac |",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_2.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_050997.json b/conversations/conv_050997.json
deleted file mode 100644
index 79a74cd984cbec163d5337ad8c33fcf64998b742..0000000000000000000000000000000000000000
--- a/conversations/conv_050997.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "3793-10683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-10683.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "duration_frames": 96223,
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-      "utterance_id": "5019-274728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-274728.flac |",
-      "real_speaker_id": "5019",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.086394321917727,
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-      "utterance_id": "3793-4707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3793-4707.flac |",
-      "real_speaker_id": "3793",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.793330095099932,
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-      "utterance_id": "5019-38670",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5019-38670.flac |",
-      "real_speaker_id": "5019",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_051000.json b/conversations/conv_051000.json
deleted file mode 100644
index 32355e1a7c64d2fb796f59d0d1d65cfd107d2bc7..0000000000000000000000000000000000000000
--- a/conversations/conv_051000.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "92-204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-204.flac |",
-      "real_speaker_id": "92",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.829244829751205,
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-      "utterance_id": "453-129306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/453-129306.flac |",
-      "real_speaker_id": "453",
-      "position_frames": 0
-    },
-    {
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-      "overlap": false,
-      "utterance_id": "8075-279229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279229.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.553336854517799,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
-      "real_speaker_id": "92",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8075",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8075-279229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279229.flac |",
-      "real_speaker_id": "8075",
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_2.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051001.json b/conversations/conv_051001.json
deleted file mode 100644
index ddefbb395c27fdb29640ab49a4bd6f6560fb2394..0000000000000000000000000000000000000000
--- a/conversations/conv_051001.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.675819388194064,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.259809535343966,
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-      "utterance_id": "258-121528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-121528.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.009479564508962,
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-      "utterance_id": "2195-150894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150894.flac |",
-      "real_speaker_id": "2195",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_051011.json b/conversations/conv_051011.json
deleted file mode 100644
index 9f2f7387907e6a83399fbff8b5cf9e810438bdfc..0000000000000000000000000000000000000000
--- a/conversations/conv_051011.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39660.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/302-123523.flac |",
-      "real_speaker_id": "302",
-      "position_frames": 66370
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_051016.json b/conversations/conv_051016.json
deleted file mode 100644
index 78886f8a6fd0c29112e42660dc9e7527020bffe7..0000000000000000000000000000000000000000
--- a/conversations/conv_051016.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-  ]
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\ No newline at end of file
diff --git a/conversations/conv_051020.json b/conversations/conv_051020.json
deleted file mode 100644
index d699b913233125684e7a6faa5e104c3f1c9c5f34..0000000000000000000000000000000000000000
--- a/conversations/conv_051020.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.69669668007124,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24788.flac |",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051036.json b/conversations/conv_051036.json
deleted file mode 100644
index e2423285f4477bf75ab59407b9d5d32497ef2baa..0000000000000000000000000000000000000000
--- a/conversations/conv_051036.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_051041.json b/conversations/conv_051041.json
deleted file mode 100644
index 0a8144a010e216a8eddae7e942afe1acec1c0da3..0000000000000000000000000000000000000000
--- a/conversations/conv_051041.json
+++ /dev/null
@@ -1,94 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.798610484505772,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2992-164101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164101.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.781801320742194,
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-      "utterance_id": "8825-292253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292253.flac |",
-      "real_speaker_id": "8825",
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-      "segment_id": "seg0002",
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-      "utterance_id": "2992-164100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164100.flac |",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_051056.json b/conversations/conv_051056.json
deleted file mode 100644
index deca84f7a32f9e5f31acc48c03ac8585d8681919..0000000000000000000000000000000000000000
--- a/conversations/conv_051056.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.788331338777503,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_051057.json b/conversations/conv_051057.json
deleted file mode 100644
index a3574620885429841fe3f1b95af914c53101eb70..0000000000000000000000000000000000000000
--- a/conversations/conv_051057.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-    {
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051061.json b/conversations/conv_051061.json
deleted file mode 100644
index b2e49de83e6db86025e6b84ca7ae3fe9c1e6cceb..0000000000000000000000000000000000000000
--- a/conversations/conv_051061.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6518-66464.flac |",
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-      "real_speaker_id": "6518",
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-      "real_speaker_id": "851",
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-      "real_speaker_id": "7078",
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-      "speaker_id": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_051077.json b/conversations/conv_051077.json
deleted file mode 100644
index 5fa0262acb223e22828c74d11b040cf7782148b8..0000000000000000000000000000000000000000
--- a/conversations/conv_051077.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185457.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "4926-23281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23281.flac |",
-      "real_speaker_id": "4926",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185457.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 95785
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.100390987345918,
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-      "utterance_id": "3977-185466",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3977-185466.flac |",
-      "real_speaker_id": "3977",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.423068409451833,
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-      "utterance_id": "2319-138656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2319-138656.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Frying",
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\ No newline at end of file
diff --git a/conversations/conv_051082.json b/conversations/conv_051082.json
deleted file mode 100644
index 665724172eb24f8efc1a0010c2696b0a2a2719fc..0000000000000000000000000000000000000000
--- a/conversations/conv_051082.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.28476920170206,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7326-96553.flac |",
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-      "real_speaker_id": "7326",
-      "position_frames": 105573
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "7326",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051085.json b/conversations/conv_051085.json
deleted file mode 100644
index c5d119d552951720022f6561a8d42ada6b890f1a..0000000000000000000000000000000000000000
--- a/conversations/conv_051085.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-291500.flac |",
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-      "utterance_id": "6075-57154",
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-      "real_speaker_id": "6075",
-      "position_frames": 0
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0006",
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-      "position_frames": 63925
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-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051093.json b/conversations/conv_051093.json
deleted file mode 100644
index 2e3da1196ea595c28036756291e1c1b347c4f5aa..0000000000000000000000000000000000000000
--- a/conversations/conv_051093.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130727.flac |",
-      "real_speaker_id": "830",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.106895939659438,
-      "end_time": 32.0,
-      "duration": 1.893104060340562,
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-      "utterance_id": "968-122544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/968-122544.flac |",
-      "real_speaker_id": "968",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "830"
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "speaker_id": "968"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051094.json b/conversations/conv_051094.json
deleted file mode 100644
index 078e65a253d5bfbe09cfad92b12f4a102caeebb2..0000000000000000000000000000000000000000
--- a/conversations/conv_051094.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.66124845017272,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2182-181183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121398.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7502-100440.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/274-121392.flac |",
-      "real_speaker_id": "274",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-      "utterance_id": "2182-181183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2182-181183.flac |",
-      "real_speaker_id": "2182",
-      "position_frames": 82341
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051098.json b/conversations/conv_051098.json
deleted file mode 100644
index a2f497fd5745fd9e8bbda5845ee36bef840c539c..0000000000000000000000000000000000000000
--- a/conversations/conv_051098.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
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-      "real_speaker_id": "7766",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174960.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 139138
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051104.json b/conversations/conv_051104.json
deleted file mode 100644
index f0e54e2f2d77e58a323a5bbfb2c9bbee6e469e41..0000000000000000000000000000000000000000
--- a/conversations/conv_051104.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.776132084063835,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "5242-35926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5242-35926.flac |",
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-      "position_frames": 0
-    },
-    {
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-    {
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-  "foreground_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5242/laugh/0017.wav",
-      "duration": 1.48,
-      "start_time": 14.301964362734095,
-      "speaker_id": "5242"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4057/laugh/0026.wav",
-      "duration": 1.0305412824948201,
-      "start_time": 26.13420519185871,
-      "speaker_id": "4057"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051108.json b/conversations/conv_051108.json
deleted file mode 100644
index ff59566f2b745af1c09d968f6049c6b7a97ee20d..0000000000000000000000000000000000000000
--- a/conversations/conv_051108.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.655081021577866,
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-      "start_frame": 0,
-      "duration_frames": 58481,
-      "overlap": false,
-      "utterance_id": "1621-141593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141593.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7138323568696663,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141593.flac |",
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-      "position_frames": 58481
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-      "segment_id": "seg0002",
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-      "duration": 5.966556911258105,
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-      "overlap": false,
-      "utterance_id": "4013-182396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4013-182396.flac |",
-      "real_speaker_id": "4013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.32121597154729,
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-      "duration": 5.36127460762968,
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-      "duration_frames": 85780,
-      "overlap": false,
-      "utterance_id": "1621-141599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141599.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.397028027208506,
-      "end_time": 29.670452764891728,
-      "duration": 6.2734247376832215,
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-      "duration_frames": 100374,
-      "overlap": false,
-      "utterance_id": "5060-15563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5060-15563.flac |",
-      "real_speaker_id": "5060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.77982343920863,
-      "end_time": 32.0,
-      "duration": 2.2201765607913693,
-      "start_frame": 476477,
-      "duration_frames": 35522,
-      "overlap": false,
-      "utterance_id": "1621-141599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141599.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 85780
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 8.480529791680093
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "speaker_id": "4013"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5060/laugh/0056.wav",
-      "duration": 1.06,
-      "start_time": 24.436904890947346,
-      "speaker_id": "5060"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051112.json b/conversations/conv_051112.json
deleted file mode 100644
index 771f43f1691864b192742fbabb969435f2207af1..0000000000000000000000000000000000000000
--- a/conversations/conv_051112.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8465-246942",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246942.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.800390605118355,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246942.flac |",
-      "real_speaker_id": "8465",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141718.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "6077-56146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-56146.flac |",
-      "real_speaker_id": "6077",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.427525304330903,
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-      "utterance_id": "8465-246943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246943.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 22.776921928440654,
-      "end_time": 27.07316638341695,
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-      "duration_frames": 68739,
-      "overlap": true,
-      "utterance_id": "1572-141715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1572-141715.flac |",
-      "real_speaker_id": "1572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.24824227881856,
-      "end_time": 32.0,
-      "duration": 3.7517577211814412,
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-      "overlap": false,
-      "utterance_id": "8465-246943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246943.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 56343
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/170745.wav",
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-      "speaker_id": "8465"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1572/laugh/0115.wav",
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-      "start_time": 21.847216414729346,
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051124.json b/conversations/conv_051124.json
deleted file mode 100644
index 2ad0ff3591afb216eb842ba5cd155e6821a276bd..0000000000000000000000000000000000000000
--- a/conversations/conv_051124.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.547628222387527,
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-      "utterance_id": "8808-295459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-295459.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-283205.flac |",
-      "real_speaker_id": "8808",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "2929",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8808-283205.flac |",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_8.wav",
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-    {
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-      "speaker_id": "4019"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051128.json b/conversations/conv_051128.json
deleted file mode 100644
index aefe81617542385fa86e51a325275d68d984a7be..0000000000000000000000000000000000000000
--- a/conversations/conv_051128.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.437541923616553,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5192-19396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5192-19396.flac |",
-      "real_speaker_id": "5192",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5192-19397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5192-19397.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "708-129393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
-      "position_frames": 109200
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-      "speaker_id": "708"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/708/cough/0117.wav",
-      "duration": 1.1163435048928052,
-      "start_time": 19.985144220190247,
-      "speaker_id": "708"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/708/cough/0035.wav",
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-      "start_time": 26.830609310469672,
-      "speaker_id": "708"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051132.json b/conversations/conv_051132.json
deleted file mode 100644
index f8e0213041d3f609207b01a8e0115267d33537d7..0000000000000000000000000000000000000000
--- a/conversations/conv_051132.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4217-9052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9052.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.77380232115668,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-80695.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "4217-9052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4217-9052.flac |",
-      "real_speaker_id": "4217",
-      "position_frames": 90163
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.742462079269838,
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-      "utterance_id": "7046-80695",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-80695.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 65748
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 19.27216797290064,
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-      "overlap": false,
-      "utterance_id": "3703-71550",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71550.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3703-71531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.888831787981008,
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-      "utterance_id": "7046-85651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-85651.flac |",
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-      "start_time": 27.397012090047063,
-      "speaker_id": "3703"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051139.json b/conversations/conv_051139.json
deleted file mode 100644
index 0855cdae1690454d1d31425311122febebbb8217..0000000000000000000000000000000000000000
--- a/conversations/conv_051139.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 0
-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1846-144458.flac |",
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-      "utterance_id": "3979-10702",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10702.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.93815260995687,
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-      "utterance_id": "1846-144452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1846-144452.flac |",
-      "real_speaker_id": "1846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.72519565886213,
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-      "utterance_id": "2201-7371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2201-7371.flac |",
-      "real_speaker_id": "2201",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3979-10701.flac |",
-      "real_speaker_id": "3979",
-      "position_frames": 96046
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_051144.json b/conversations/conv_051144.json
deleted file mode 100644
index fb6f418e0a83edded438a50389856c64bf99c14d..0000000000000000000000000000000000000000
--- a/conversations/conv_051144.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7198-76169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-76169.flac |",
-      "real_speaker_id": "7198",
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-      "utterance_id": "366-127793",
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-      "real_speaker_id": "2196",
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-    {
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-      "utterance_id": "7198-80654",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_051145.json b/conversations/conv_051145.json
deleted file mode 100644
index 759effa0bcff86e9d7473abb889b33eb5af76d2a..0000000000000000000000000000000000000000
--- a/conversations/conv_051145.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "1195-37134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1195-37134.flac |",
-      "real_speaker_id": "1195",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.784422542586678,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-67218.flac |",
-      "real_speaker_id": "6683",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-63841.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": "6683"
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\ No newline at end of file
diff --git a/conversations/conv_051149.json b/conversations/conv_051149.json
deleted file mode 100644
index 7e0ad11676a8ee798a1cc318c57791012703e663..0000000000000000000000000000000000000000
--- a/conversations/conv_051149.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5143.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132015.flac |",
-      "real_speaker_id": "404",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-191426.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132014.flac |",
-      "real_speaker_id": "404",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.239888391829208,
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-      "utterance_id": "2136-5147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5147.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.43047001502193,
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-      "utterance_id": "404-132013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/404-132013.flac |",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_051153.json b/conversations/conv_051153.json
deleted file mode 100644
index bfb5d62ab33ce830dcddfb2267f6acaec6dc1e4c..0000000000000000000000000000000000000000
--- a/conversations/conv_051153.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5354.flac |",
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-      "real_speaker_id": "2836",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "7565",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2836-5354.flac |",
-      "real_speaker_id": "2836",
-      "position_frames": 184074
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7565-101281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101281.flac |",
-      "real_speaker_id": "7565",
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-  "background_events": [],
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-      "start_time": 30.72,
-      "speaker_id": "7565"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051154.json b/conversations/conv_051154.json
deleted file mode 100644
index 2d97d06ca77985f7bbc26e2cf9f108965497055d..0000000000000000000000000000000000000000
--- a/conversations/conv_051154.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.58000146681237,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_051165.json b/conversations/conv_051165.json
deleted file mode 100644
index 69e4890d7b23908758a880fc0283443eaf000932..0000000000000000000000000000000000000000
--- a/conversations/conv_051165.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/307-127539.flac |",
-      "real_speaker_id": "307",
-      "position_frames": 0
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-36961.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.436944174411654,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-36961.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 83675
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-  "background_events": [
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-      "event_class": "Blender",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/307/laugh/0084.wav",
-      "duration": 1.1039701277971439,
-      "start_time": 10.335740052621933,
-      "speaker_id": "307"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5993/laugh/0116.wav",
-      "duration": 1.0,
-      "start_time": 30.529511046644743,
-      "speaker_id": "5993"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051169.json b/conversations/conv_051169.json
deleted file mode 100644
index f6fd97dcd19ab6a6df0f4aea03a4bc759bc7cb59..0000000000000000000000000000000000000000
--- a/conversations/conv_051169.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4863-32138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-32138.flac |",
-      "real_speaker_id": "4863",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.175899138459388,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-24734.flac |",
-      "real_speaker_id": "4863",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.640100212143704,
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-      "utterance_id": "4863-258982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-258982.flac |",
-      "real_speaker_id": "4863",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.178953075141845,
-      "end_time": 28.07967253974545,
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-      "utterance_id": "781-126737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-126737.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.74752805447166,
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-      "duration": 3.2524719455283417,
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-      "overlap": false,
-      "utterance_id": "4863-258982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-258982.flac |",
-      "real_speaker_id": "4863",
-      "position_frames": 50972
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051173.json b/conversations/conv_051173.json
deleted file mode 100644
index dc9dbc505731df22a8c480aa3bce3c663c8408f4..0000000000000000000000000000000000000000
--- a/conversations/conv_051173.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2152-133013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-133013.flac |",
-      "real_speaker_id": "2152",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 7.68465060729294,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-163322.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 0
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-      "utterance_id": "2256-137597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137597.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.23217712200796,
-      "end_time": 23.615920213334874,
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-      "overlap": true,
-      "utterance_id": "2152-133013",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2152-133013.flac |",
-      "real_speaker_id": "2152",
-      "position_frames": 100396
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2256-137627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137627.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 30.062276624101035,
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-      "duration": 1.9377233758989654,
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-      "utterance_id": "2785-163322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-163322.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 67086
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.5604077129774234,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 3.7532769687008933,
-      "speaker_id": "2152"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051178.json b/conversations/conv_051178.json
deleted file mode 100644
index d141351f706cb6856c39127d53c735135c27a291..0000000000000000000000000000000000000000
--- a/conversations/conv_051178.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.30107090909314,
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-      "overlap": false,
-      "utterance_id": "1084-151395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-151395.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.611502723592517,
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-      "utterance_id": "4979-26563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26563.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.65571609648206,
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-      "duration_frames": 70758,
-      "overlap": true,
-      "utterance_id": "4979-26551",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26551.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.141978006813837,
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-      "duration": 4.571951726439017,
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-      "duration_frames": 73151,
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-      "utterance_id": "4979-26563",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4979-26563.flac |",
-      "real_speaker_id": "4979",
-      "position_frames": 104482
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1084-151395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-151395.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 100817
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 70742,
-      "overlap": false,
-      "utterance_id": "8042-113762",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8042-113762.flac |",
-      "real_speaker_id": "8042",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4979/cough/0008.wav",
-      "duration": 0.5150435604874262,
-      "start_time": 21.057684506029506,
-      "speaker_id": "4979"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 26.91194202840368,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8042/cough/0093.wav",
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-      "start_time": 30.866597139038348,
-      "speaker_id": "8042"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051181.json b/conversations/conv_051181.json
deleted file mode 100644
index d0479dd914fe5adbd1187bbe37ca86f9a640205e..0000000000000000000000000000000000000000
--- a/conversations/conv_051181.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
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\ No newline at end of file
diff --git a/conversations/conv_051186.json b/conversations/conv_051186.json
deleted file mode 100644
index cda976ac81dc74606776a7865fa4a63339315f66..0000000000000000000000000000000000000000
--- a/conversations/conv_051186.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_051190.json b/conversations/conv_051190.json
deleted file mode 100644
index a93a34f257383f4458de80cb8ac774a74f646fa7..0000000000000000000000000000000000000000
--- a/conversations/conv_051190.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_051197.json b/conversations/conv_051197.json
deleted file mode 100644
index 484697359dade2618a1ba354d9496b20b03e0589..0000000000000000000000000000000000000000
--- a/conversations/conv_051197.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "duration": 1.24,
-      "start_time": 5.052598345523416,
-      "speaker_id": "5723"
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-      "duration": 1.386675146590448,
-      "start_time": 24.50323315715098,
-      "speaker_id": "569"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051201.json b/conversations/conv_051201.json
deleted file mode 100644
index 9be1a97a14bdf9ee47e68a3b9d398ccdcb88a5d4..0000000000000000000000000000000000000000
--- a/conversations/conv_051201.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-105388.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "start_time": 6.476067319880676,
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-      "utterance_id": "783-126739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 89065
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.405691168699384,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-105388.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 96838
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2758-86040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86040.flac |",
-      "real_speaker_id": "2758",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.089218561399846,
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-      "utterance_id": "7277-106404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106404.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051206.json b/conversations/conv_051206.json
deleted file mode 100644
index 2604220f96e46e3eb05889f59a357c3fdfb07710..0000000000000000000000000000000000000000
--- a/conversations/conv_051206.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.873628694145005,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "start_time": 25.463494536948975,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8194-89388.flac |",
-      "real_speaker_id": "8194",
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-  "background_events": [
-    {
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-      "duration": 1.16,
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-      "speaker_id": "8194"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051210.json b/conversations/conv_051210.json
deleted file mode 100644
index a942fff06c4e23824a7de32b1fc53466d19ec2a0..0000000000000000000000000000000000000000
--- a/conversations/conv_051210.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.71690645109786,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
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-      "position_frames": 85990
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "7766-109658",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-109658.flac |",
-      "real_speaker_id": "7766",
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-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051216.json b/conversations/conv_051216.json
deleted file mode 100644
index 627f86d05a8a47deb808e7ccbf8b1ed0a267aa16..0000000000000000000000000000000000000000
--- a/conversations/conv_051216.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.918056507726046,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8316-279798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
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-    {
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-      "real_speaker_id": "4257",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_051217.json b/conversations/conv_051217.json
deleted file mode 100644
index 71115c0ceb1cb82ddf39c58fb5b60fbcb49ab239..0000000000000000000000000000000000000000
--- a/conversations/conv_051217.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.739495055791289,
-      "duration": 5.739495055791289,
-      "start_frame": 0,
-      "duration_frames": 91831,
-      "overlap": false,
-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.061353109721308,
-      "end_time": 10.324543697955662,
-      "duration": 4.263190588234354,
-      "start_frame": 96981,
-      "duration_frames": 68211,
-      "overlap": false,
-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 91831
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.729830399495228,
-      "end_time": 17.57236008400624,
-      "duration": 6.842529684511014,
-      "start_frame": 171677,
-      "duration_frames": 109480,
-      "overlap": false,
-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.04618097267635,
-      "end_time": 22.322664136127955,
-      "duration": 4.276483163451605,
-      "start_frame": 288738,
-      "duration_frames": 68423,
-      "overlap": false,
-      "utterance_id": "7208-7768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.013857141659965,
-      "end_time": 28.304203276077782,
-      "duration": 5.290346134417816,
-      "start_frame": 368221,
-      "duration_frames": 84645,
-      "overlap": false,
-      "utterance_id": "2882-147159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2882-147159.flac |",
-      "real_speaker_id": "2882",
-      "position_frames": 109480
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.624539290486933,
-      "end_time": 32.0,
-      "duration": 3.3754607095130673,
-      "start_frame": 457992,
-      "duration_frames": 54007,
-      "overlap": false,
-      "utterance_id": "7208-7772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7772.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 160042
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_2.wav",
-      "duration": 2.145578231292517,
-      "start_time": 15.760645371049659
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
-      "duration": 4.58726686016772,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7208/cough/0064.wav",
-      "duration": 0.7037719647159915,
-      "start_time": 5.238428844412484,
-      "speaker_id": "7208"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2882/laugh/0024.wav",
-      "duration": 0.9344166543419163,
-      "start_time": 11.189884124588007,
-      "speaker_id": "2882"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7208/cough/0031.wav",
-      "duration": 0.47655947881008676,
-      "start_time": 22.49953410991772,
-      "speaker_id": "7208"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7208/laugh/0017.wav",
-      "duration": 1.2216614865796738,
-      "start_time": 27.138952935733283,
-      "speaker_id": "7208"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051221.json b/conversations/conv_051221.json
deleted file mode 100644
index d3ca98dd245828452e18959bc58d481b2d1b569d..0000000000000000000000000000000000000000
--- a/conversations/conv_051221.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.784945099142916,
-      "duration": 5.784945099142916,
-      "start_frame": 0,
-      "duration_frames": 92559,
-      "overlap": false,
-      "utterance_id": "2960-155152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.476452829532023,
-      "end_time": 11.375312349585023,
-      "duration": 4.898859520053001,
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-      "overlap": false,
-      "utterance_id": "2960-155152",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155152.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 92559
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.054183597089466,
-      "end_time": 16.954954095438858,
-      "duration": 4.9007704983493925,
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-      "duration_frames": 78412,
-      "overlap": false,
-      "utterance_id": "6377-34634",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34634.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.30927615459553,
-      "end_time": 23.75922424185824,
-      "duration": 6.449948087262711,
-      "start_frame": 276948,
-      "duration_frames": 103199,
-      "overlap": true,
-      "utterance_id": "2960-155151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2960-155151.flac |",
-      "real_speaker_id": "2960",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.8977506729363,
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-      "duration": 4.255142644459257,
-      "start_frame": 398364,
-      "duration_frames": 68082,
-      "overlap": false,
-      "utterance_id": "2971-4275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2971-4275.flac |",
-      "real_speaker_id": "2971",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.632467822034485,
-      "end_time": 32.0,
-      "duration": 2.367532177965515,
-      "start_frame": 474119,
-      "duration_frames": 37880,
-      "overlap": false,
-      "utterance_id": "6377-34630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34630.flac |",
-      "real_speaker_id": "6377",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_11.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_13.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2960/laugh/0005.wav",
-      "duration": 1.16,
-      "start_time": 6.017322371960963,
-      "speaker_id": "2960"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2960/laugh/0031.wav",
-      "duration": 1.64,
-      "start_time": 4.631906700533702,
-      "speaker_id": "2960"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2971/cough/0074.wav",
-      "duration": 1.1107507591865562,
-      "start_time": 23.774654431225485,
-      "speaker_id": "2971"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6377/cough/0094.wav",
-      "duration": 0.4140004236885237,
-      "start_time": 31.585999576311476,
-      "speaker_id": "6377"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051237.json b/conversations/conv_051237.json
deleted file mode 100644
index fb2c73e8b9892dc9a614a61c79f2ab07b609bd53..0000000000000000000000000000000000000000
--- a/conversations/conv_051237.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.569072595646703,
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-      "overlap": false,
-      "utterance_id": "5393-19219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19219.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.211836608495279,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-151395.flac |",
-      "real_speaker_id": "1084",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1974-139742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139742.flac |",
-      "real_speaker_id": "1974",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.911073725082511,
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-      "utterance_id": "1974-139742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1974-139742.flac |",
-      "real_speaker_id": "1974",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.434733070219526,
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-      "utterance_id": "1084-139230",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-139230.flac |",
-      "real_speaker_id": "1084",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 27.312918047755222,
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-      "utterance_id": "5393-19219",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19219.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 73105
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1084/laugh/0086.wav",
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-      "speaker_id": "1084"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051240.json b/conversations/conv_051240.json
deleted file mode 100644
index 8ad0ae73f70a61f2a9afb69c06034b7863bd01f3..0000000000000000000000000000000000000000
--- a/conversations/conv_051240.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.018298221115863,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.518488337369904,
-      "duration": 6.518488337369904,
-      "start_frame": 0,
-      "duration_frames": 104295,
-      "overlap": false,
-      "utterance_id": "91-123526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123526.flac |",
-      "real_speaker_id": "91",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.121845555236341,
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-      "real_speaker_id": "960",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "91-123498",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/91-123498.flac |",
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-    {
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-    {
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20093.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/960/cough/0010.wav",
-      "duration": 1.08,
-      "start_time": 10.23764165800115,
-      "speaker_id": "960"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7170/laugh/0109.wav",
-      "duration": 0.759839527932886,
-      "start_time": 26.094580859288445,
-      "speaker_id": "7170"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/960/laugh/0035.wav",
-      "duration": 1.4876016307602211,
-      "start_time": 30.117713046207157,
-      "speaker_id": "960"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051247.json b/conversations/conv_051247.json
deleted file mode 100644
index f6aa8d0f64de9c5ce048ceabaf35c4249f2dfd91..0000000000000000000000000000000000000000
--- a/conversations/conv_051247.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.0252245116595216,
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-      "duration_frames": 96403,
-      "overlap": false,
-      "utterance_id": "6232-36628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.218610764367852,
-      "end_time": 10.290938775537576,
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-      "utterance_id": "718-129594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129594.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.012693152045456,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
-      "position_frames": 96403
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.347936942348365,
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-      "utterance_id": "7585-96245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 22.393825079112187,
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-      "utterance_id": "718-129596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/718-129596.flac |",
-      "real_speaker_id": "718",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 25.96626923949891,
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-      "utterance_id": "7585-96245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 66379
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.99056933071308,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
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-      "position_frames": 185118
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "cough",
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-      "duration": 1.0,
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-      "speaker_id": "718"
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051251.json b/conversations/conv_051251.json
deleted file mode 100644
index 59f958c95a54e5b29bc93e45f9aeba0d6bacbf63..0000000000000000000000000000000000000000
--- a/conversations/conv_051251.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "5637-41166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41166.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "2003",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-128339.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.3934927797374,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.96219659648096,
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-      "duration_frames": 73396,
-      "overlap": true,
-      "utterance_id": "403-128339",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-128339.flac |",
-      "real_speaker_id": "403",
-      "position_frames": 87228
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143255.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 49118
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "utterance_id": "403-216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/403-216.flac |",
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-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
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-      "start_time": 20.002244001429027,
-      "speaker_id": "2003"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051256.json b/conversations/conv_051256.json
deleted file mode 100644
index d82554b1b54d9bfe89aaccf9a86524a6cbeccca3..0000000000000000000000000000000000000000
--- a/conversations/conv_051256.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-111784.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8226-274369.flac |",
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-      "real_speaker_id": "7277",
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-    {
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "7640",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106407.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 74093
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_051260.json b/conversations/conv_051260.json
deleted file mode 100644
index a47216e170d4a616527f50c0432794bc72964f0a..0000000000000000000000000000000000000000
--- a/conversations/conv_051260.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3559-165413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-130001.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3559-165413.flac |",
-      "real_speaker_id": "3559",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-126843.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 102527
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-  "background_events": [
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-      "event_class": "Frying",
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-      "duration": 0.8,
-      "start_time": 0,
-      "speaker_id": "3559"
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-      "event_class": "laugh",
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-      "speaker_id": "402"
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-      "event_class": "cough",
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-      "duration": 0.8066180363442583,
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-      "speaker_id": "402"
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-      "event_class": "laugh",
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-      "start_time": 28.62177128975781,
-      "speaker_id": "402"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051261.json b/conversations/conv_051261.json
deleted file mode 100644
index 1896c9b510db57ade910b6626b8a8bde3563bbb4..0000000000000000000000000000000000000000
--- a/conversations/conv_051261.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4799-25950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25950.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.809629687752375,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292252.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.923137964664361,
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-      "overlap": false,
-      "utterance_id": "4799-25949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.238455706216843,
-      "end_time": 22.896715246642344,
-      "duration": 5.6582595404255,
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-      "overlap": false,
-      "utterance_id": "8825-292253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292253.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.35940242593722,
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-      "utterance_id": "542-125349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/542-125349.flac |",
-      "real_speaker_id": "542",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.743850807696152,
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-      "duration": 3.256149192303848,
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-      "utterance_id": "4799-25949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4799-25949.flac |",
-      "real_speaker_id": "4799",
-      "position_frames": 71695
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-      "start_time": 30.96,
-      "speaker_id": "4799"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051276.json b/conversations/conv_051276.json
deleted file mode 100644
index 5fbdcb41e0fcec197909985c4752d1dad67a89e5..0000000000000000000000000000000000000000
--- a/conversations/conv_051276.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-157879.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 62704
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/956-127932.flac |",
-      "real_speaker_id": "956",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2089-133059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2089-133059.flac |",
-      "real_speaker_id": "2089",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.82991913010536,
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-      "duration": 1.1700808698946403,
-      "start_frame": 493278,
-      "duration_frames": 18721,
-      "overlap": false,
-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 146835
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051282.json b/conversations/conv_051282.json
deleted file mode 100644
index b961230f193712c448a747f6bec36ce2f7a49a2a..0000000000000000000000000000000000000000
--- a/conversations/conv_051282.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "6199-48196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-48196.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "7062-80029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-80029.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
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-      "utterance_id": "7700-92925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.88259320913313,
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-      "real_speaker_id": "7062",
-      "position_frames": 0
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-    {
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-      "speaker_id": 2,
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051283.json b/conversations/conv_051283.json
deleted file mode 100644
index 9951e1721d0fa08222ad48ef34ff362cb24bd0fa..0000000000000000000000000000000000000000
--- a/conversations/conv_051283.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "5825-50883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5825-50883.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121400.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 88481
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7925-271896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-271896.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 63248
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.483795330095656,
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-      "utterance_id": "3285-121400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121400.flac |",
-      "real_speaker_id": "3285",
-      "position_frames": 197475
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
-      "duration": 2.249795918367347,
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5825/cough/0109.wav",
-      "duration": 1.3397578547810618,
-      "start_time": 0,
-      "speaker_id": "5825"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7925/cough/0068.wav",
-      "duration": 0.30095668233835876,
-      "start_time": 5.646262315827244,
-      "speaker_id": "7925"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3285/laugh/0071.wav",
-      "duration": 0.8861895896943579,
-      "start_time": 24.460931579097032,
-      "speaker_id": "3285"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051295.json b/conversations/conv_051295.json
deleted file mode 100644
index ecc2c4a242517464645abe7f60ae1776cdbf6f7c..0000000000000000000000000000000000000000
--- a/conversations/conv_051295.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.161723755515086,
-      "duration": 5.161723755515086,
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.8091704952800685,
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-      "overlap": false,
-      "utterance_id": "2289-152254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152254.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.87838264000644,
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-      "duration_frames": 65471,
-      "overlap": false,
-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 82587
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.507375858384444,
-      "end_time": 19.39934171160256,
-      "duration": 4.891965853218117,
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-      "duration_frames": 78271,
-      "overlap": false,
-      "utterance_id": "7320-104988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-104988.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.83699921735031,
-      "end_time": 26.410658923926498,
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 148058
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2289-152254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152254.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 48681
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "2289"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051299.json b/conversations/conv_051299.json
deleted file mode 100644
index 0b5070469bf3dfdf3e503cda4bbfd08ff15e4b69..0000000000000000000000000000000000000000
--- a/conversations/conv_051299.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "559-126296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-126296.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 8.052598914576429,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "duration_frames": 108186,
-      "overlap": false,
-      "utterance_id": "559-126296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/559-126296.flac |",
-      "real_speaker_id": "559",
-      "position_frames": 107816
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 22.12841617904813,
-      "end_time": 27.055094058606898,
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-      "overlap": false,
-      "utterance_id": "1809-143025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1809-143025.flac |",
-      "real_speaker_id": "1809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.736863376487918,
-      "end_time": 32.0,
-      "duration": 4.263136623512082,
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-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 95057
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
-      "duration": 2.1073469387755104,
-      "start_time": 23.418723725495646
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_4.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/559/laugh/0090.wav",
-      "duration": 1.442432936098214,
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-    {
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-      "start_time": 20.51537227778092,
-      "speaker_id": "1809"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051302.json b/conversations/conv_051302.json
deleted file mode 100644
index 9714e5ee6ab9a8e6e830c0c5cec5f1126b6d0202..0000000000000000000000000000000000000000
--- a/conversations/conv_051302.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.0197142720429255,
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-      "duration_frames": 64315,
-      "overlap": false,
-      "utterance_id": "1795-142412",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1795-142412.flac |",
-      "real_speaker_id": "1795",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.8325035115252675,
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-      "overlap": false,
-      "utterance_id": "4701-15273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15273.flac |",
-      "real_speaker_id": "4701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.567284786093419,
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-      "duration": 3.2678758133027737,
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-      "duration_frames": 52286,
-      "overlap": false,
-      "utterance_id": "4701-15046",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15046.flac |",
-      "real_speaker_id": "4701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.111249287598131,
-      "end_time": 18.10546973995506,
-      "duration": 3.9942204523569282,
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-      "duration_frames": 63907,
-      "overlap": false,
-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15046.flac |",
-      "real_speaker_id": "4701",
-      "position_frames": 52286
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.75952437283012,
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-      "start_frame": 396152,
-      "duration_frames": 76195,
-      "overlap": false,
-      "utterance_id": "6912-70845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70845.flac |",
-      "real_speaker_id": "6912",
-      "position_frames": 63907
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.743747004234237,
-      "end_time": 32.0,
-      "duration": 2.256252995765763,
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-      "overlap": false,
-      "utterance_id": "4701-15273",
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-      "real_speaker_id": "4701",
-      "position_frames": 79572
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Cat",
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-      "duration": 0.7175510204081633,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1795/laugh/0004.wav",
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-      "start_time": 1.568933007751005,
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4701/cough/0076.wav",
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-      "start_time": 29.386323638130936,
-      "speaker_id": "4701"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051305.json b/conversations/conv_051305.json
deleted file mode 100644
index 59f7d0e59420980be9d4e4a9bf3edae56a7b8c8d..0000000000000000000000000000000000000000
--- a/conversations/conv_051305.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.403847740195086,
-      "duration": 5.403847740195086,
-      "start_frame": 0,
-      "duration_frames": 86461,
-      "overlap": false,
-      "utterance_id": "4660-25054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25054.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.622497052266597,
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-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25046.flac |",
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-      "speaker_id": "4660"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051309.json b/conversations/conv_051309.json
deleted file mode 100644
index 847038d02a1140e07a694cba38b39b1b0755cad5..0000000000000000000000000000000000000000
--- a/conversations/conv_051309.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2445-148556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
-      "real_speaker_id": "2445",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-139304.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/231-127936.flac |",
-      "real_speaker_id": "231",
-      "position_frames": 0
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-      "start_time": 16.711125582016468,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.17902775144439,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2445-148556.flac |",
-      "real_speaker_id": "2445",
-      "position_frames": 71615
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.68769502681218,
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-      "utterance_id": "1363-139304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-139304.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 86639
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
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-      "speaker_id": "1363"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051313.json b/conversations/conv_051313.json
deleted file mode 100644
index d19c21d39808a44087e38eec9cc6753df6408048..0000000000000000000000000000000000000000
--- a/conversations/conv_051313.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-156969.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "8180",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
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-      "real_speaker_id": "2013",
-      "position_frames": 63090
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8180-274725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274725.flac |",
-      "real_speaker_id": "8180",
-      "position_frames": 83261
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "cough",
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-      "start_time": 14.598115601450223,
-      "speaker_id": "8180"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8180/laugh/0029.wav",
-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "8180"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8180/cough/0109.wav",
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-      "start_time": 26.14884774909918,
-      "speaker_id": "8180"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051314.json b/conversations/conv_051314.json
deleted file mode 100644
index fd3882ab878589c562c76914e24f2a7dd35ee5ba..0000000000000000000000000000000000000000
--- a/conversations/conv_051314.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.8168024303103,
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-      "start_frame": 0,
-      "duration_frames": 93068,
-      "overlap": false,
-      "utterance_id": "5641-39772",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-39772.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.685964990724003,
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-      "overlap": false,
-      "utterance_id": "7065-74573",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74573.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5641-32124",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5641-32124.flac |",
-      "real_speaker_id": "5641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.62202782837712,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74597.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "5641",
-      "position_frames": 93068
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.71816478065095,
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-      "duration": 2.2818352193490483,
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-      "duration_frames": 36509,
-      "overlap": false,
-      "utterance_id": "7065-74573",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7065-74573.flac |",
-      "real_speaker_id": "7065",
-      "position_frames": 86803
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7065/laugh/0098.wav",
-      "duration": 1.36,
-      "start_time": 5.221330618253403,
-      "speaker_id": "7065"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5641/laugh/0111.wav",
-      "duration": 1.12,
-      "start_time": 28.77364648211425,
-      "speaker_id": "5641"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5641/cough/0132.wav",
-      "duration": 1.0033269963930604,
-      "start_time": 28.849283983412523,
-      "speaker_id": "5641"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7065/cough/0028.wav",
-      "duration": 0.92,
-      "start_time": 30.952553957378086,
-      "speaker_id": "7065"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051325.json b/conversations/conv_051325.json
deleted file mode 100644
index 9ac98f4b30128ea0ac1fb88ac2594d884754ea7d..0000000000000000000000000000000000000000
--- a/conversations/conv_051325.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 78778
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
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-      "utterance_id": "4243-187024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4243-187024.flac |",
-      "real_speaker_id": "4243",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.526073722076507,
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-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 157530
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4420/laugh/0012.wav",
-      "duration": 1.2,
-      "start_time": 9.619839312711186,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4420/laugh/0052.wav",
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-      "speaker_id": "4420"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051328.json b/conversations/conv_051328.json
deleted file mode 100644
index d0b4d1adbc09c7857e07b1ea15c504e0691389c6..0000000000000000000000000000000000000000
--- a/conversations/conv_051328.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 72336,
-      "overlap": false,
-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.854309312835808,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137627.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/30-4447.flac |",
-      "real_speaker_id": "30",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2256-137628.flac |",
-      "real_speaker_id": "2256",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2046-141204",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 152018
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "start_time": 24.568595372633304,
-      "speaker_id": "2256"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_051329.json b/conversations/conv_051329.json
deleted file mode 100644
index 0ad1a32687bdda20d9680ecb231eb15ac330e165..0000000000000000000000000000000000000000
--- a/conversations/conv_051329.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "6131-229040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
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-      "utterance_id": "149-125750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125750.flac |",
-      "real_speaker_id": "149",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 142487
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.949245859709002,
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-      "real_speaker_id": "149",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6232-36628.flac |",
-      "real_speaker_id": "6232",
-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_051333.json b/conversations/conv_051333.json
deleted file mode 100644
index 90f0ad85522b8abb1243ad09843296a1253dca58..0000000000000000000000000000000000000000
--- a/conversations/conv_051333.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1343-158796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158796.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5206/cough/0011.wav",
-      "duration": 1.0592315215464003,
-      "start_time": 21.00200933753882,
-      "speaker_id": "5206"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051343.json b/conversations/conv_051343.json
deleted file mode 100644
index 5234dd9622e28ad61293de51be14f8ea1a8ea98c..0000000000000000000000000000000000000000
--- a/conversations/conv_051343.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.228345667304623,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.0751765336123,
-      "duration": 5.0751765336123,
-      "start_frame": 0,
-      "duration_frames": 81202,
-      "overlap": false,
-      "utterance_id": "7398-98878",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98878.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.427479590912886,
-      "end_time": 9.353275289774754,
-      "duration": 3.9257956988618687,
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-      "overlap": false,
-      "utterance_id": "1559-139347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139347.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.795405325394432,
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-      "duration": 4.621367947892263,
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-      "overlap": false,
-      "utterance_id": "7398-98877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98877.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.07885526671262,
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-      "duration": 4.096309281620226,
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-      "duration_frames": 65540,
-      "overlap": false,
-      "utterance_id": "1559-139353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.46792792217164,
-      "end_time": 24.611329332571366,
-      "duration": 5.143401410399724,
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-      "duration_frames": 82294,
-      "overlap": false,
-      "utterance_id": "7398-98880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98880.flac |",
-      "real_speaker_id": "7398",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.89905304795382,
-      "end_time": 31.228345667304623,
-      "duration": 5.329292619350801,
-      "start_frame": 414384,
-      "duration_frames": 85268,
-      "overlap": false,
-      "utterance_id": "4930-20048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4930-20048.flac |",
-      "real_speaker_id": "4930",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7398/laugh/0069.wav",
-      "duration": 0.9198978418248269,
-      "start_time": 0,
-      "speaker_id": "7398"
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-    {
-      "event_class": "cough",
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-      "duration": 0.463254005139049,
-      "start_time": 0,
-      "speaker_id": "7398"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1559/laugh/0052.wav",
-      "duration": 0.8900904388655738,
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-      "speaker_id": "1559"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7398/cough/0074.wav",
-      "duration": 1.022178746348138,
-      "start_time": 24.738982922674126,
-      "speaker_id": "7398"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051344.json b/conversations/conv_051344.json
deleted file mode 100644
index 614664b8cf089161ea733e834819223d187a8495..0000000000000000000000000000000000000000
--- a/conversations/conv_051344.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.20359092601983,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1913-147989",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-147989.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.0134140872232145,
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-      "utterance_id": "3911-8888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 0
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-      "utterance_id": "1841-150351",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1841-150351.flac |",
-      "real_speaker_id": "1841",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1913-147989",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-147989.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 65144
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.68800604708387,
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-      "duration": 4.968713329345845,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3911-8888.flac |",
-      "real_speaker_id": "3911",
-      "position_frames": 56831
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 75445,
-      "overlap": true,
-      "utterance_id": "1913-147989",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1913-147989.flac |",
-      "real_speaker_id": "1913",
-      "position_frames": 171039
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  ],
-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/121891_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3911/laugh/0078.wav",
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-    {
-      "event_class": "cough",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1913/laugh/0069.wav",
-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "1913"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1913/cough/0051.wav",
-      "duration": 0.7949308583605181,
-      "start_time": 25.62191122870872,
-      "speaker_id": "1913"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051348.json b/conversations/conv_051348.json
deleted file mode 100644
index c4101ef2d3bbb8b569819639d5e1fe89eafe06f7..0000000000000000000000000000000000000000
--- a/conversations/conv_051348.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "6763-74798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74798.flac |",
-      "real_speaker_id": "6763",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74798.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 88539
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.70960227345684,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 173944
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.736557367301934,
-      "end_time": 32.0,
-      "duration": 4.263442632698066,
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-      "utterance_id": "6763-74798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6763-74798.flac |",
-      "real_speaker_id": "6763",
-      "position_frames": 148043
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_051352.json b/conversations/conv_051352.json
deleted file mode 100644
index 7e979b7db6b34e8f4d43975e5c2a24ebbc24dae4..0000000000000000000000000000000000000000
--- a/conversations/conv_051352.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173236.flac |",
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-      "position_frames": 0
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-      "utterance_id": "4699-12472",
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-    {
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_051355.json b/conversations/conv_051355.json
deleted file mode 100644
index 9c16621d722210979a9fcff1130b3afd64014794..0000000000000000000000000000000000000000
--- a/conversations/conv_051355.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19218.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_051364.json b/conversations/conv_051364.json
deleted file mode 100644
index c724aa69692bf9ba1c5aade13faf1da2fa4e5484..0000000000000000000000000000000000000000
--- a/conversations/conv_051364.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_051368.json b/conversations/conv_051368.json
deleted file mode 100644
index 16317d40ee09e4c6f8bd86ba4f71952ee8ad6869..0000000000000000000000000000000000000000
--- a/conversations/conv_051368.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "6548",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051372.json b/conversations/conv_051372.json
deleted file mode 100644
index 40b734ef0e2b2ee1d0c5e7f97c01b9e87362d2c1..0000000000000000000000000000000000000000
--- a/conversations/conv_051372.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6695-252334.flac |",
-      "real_speaker_id": "6695",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051387.json b/conversations/conv_051387.json
deleted file mode 100644
index 97aa195f889c97227c6b6978eb380b3771315728..0000000000000000000000000000000000000000
--- a/conversations/conv_051387.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7835-97730.flac |",
-      "real_speaker_id": "7835",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
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-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_051390.json b/conversations/conv_051390.json
deleted file mode 100644
index 420e9a9a36a619a448c0634fc0a071cdd653fb43..0000000000000000000000000000000000000000
--- a/conversations/conv_051390.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
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-      "position_frames": 0
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-      "utterance_id": "2606-132102",
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\ No newline at end of file
diff --git a/conversations/conv_051391.json b/conversations/conv_051391.json
deleted file mode 100644
index 2b186f384d065d852606838969eb32e4188a0d86..0000000000000000000000000000000000000000
--- a/conversations/conv_051391.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6695",
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-    {
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-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_051407.json b/conversations/conv_051407.json
deleted file mode 100644
index eac599708fcc88d656398097f879fe762db9cb0e..0000000000000000000000000000000000000000
--- a/conversations/conv_051407.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-    {
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-    {
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-      "overlap": true,
-      "utterance_id": "1316-132782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132782.flac |",
-      "real_speaker_id": "1316",
-      "position_frames": 62294
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.739938554223926,
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-      "duration_frames": 66078,
-      "overlap": false,
-      "utterance_id": "1773-145712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145712.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.276703164179374,
-      "end_time": 32.0,
-      "duration": 2.7232968358206264,
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-      "overlap": false,
-      "utterance_id": "1316-132800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1316-132800.flac |",
-      "real_speaker_id": "1316",
-      "position_frames": 84877
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 9.187523190259148
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1316/laugh/0090.wav",
-      "duration": 1.32,
-      "start_time": 0,
-      "speaker_id": "1316"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/986/cough/0019.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1316/cough/0055.wav",
-      "duration": 0.8867091039570711,
-      "start_time": 18.17726567742357,
-      "speaker_id": "1316"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1773/laugh/0043.wav",
-      "duration": 1.125372202777212,
-      "start_time": 23.44071460395075,
-      "speaker_id": "1773"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1773/cough/0163.wav",
-      "duration": 0.5072929353289047,
-      "start_time": 28.89173403727351,
-      "speaker_id": "1773"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051411.json b/conversations/conv_051411.json
deleted file mode 100644
index e7f30023c0262ef7cd10dafde8fee3b8090f9437..0000000000000000000000000000000000000000
--- a/conversations/conv_051411.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.684031875896206,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.329224569512708,
-      "duration": 5.329224569512708,
-      "start_frame": 0,
-      "duration_frames": 85267,
-      "overlap": false,
-      "utterance_id": "6395-87997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-87997.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.20325378726788,
-      "end_time": 9.940622925480444,
-      "duration": 3.7373691382125642,
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-      "duration_frames": 59797,
-      "overlap": false,
-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.287599938088125,
-      "end_time": 14.70415590215662,
-      "duration": 4.416555964068495,
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-      "duration_frames": 70664,
-      "overlap": false,
-      "utterance_id": "17-362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.650480953875473,
-      "end_time": 19.813440648707584,
-      "duration": 4.162959694832111,
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-      "overlap": false,
-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 59797
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.138049213501542,
-      "end_time": 25.438002653248184,
-      "duration": 5.299953439746642,
-      "start_frame": 322208,
-      "duration_frames": 84799,
-      "overlap": false,
-      "utterance_id": "6395-86708",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-86708.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.656718168316885,
-      "end_time": 31.684031875896206,
-      "duration": 6.027313707579321,
-      "start_frame": 410507,
-      "duration_frames": 96437,
-      "overlap": false,
-      "utterance_id": "4474-14186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4474-14186.flac |",
-      "real_speaker_id": "4474",
-      "position_frames": 126404
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
-      "duration": 0.236984126984127,
-      "start_time": 21.095191329596506
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6395/cough/0085.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4474/laugh/0119.wav",
-      "duration": 1.24,
-      "start_time": 19.921260165734747,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4474/cough/0111.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4474/laugh/0099.wav",
-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "4474"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051427.json b/conversations/conv_051427.json
deleted file mode 100644
index 3996fcd3c3b81a254c8ee11f445e501e8072f28a..0000000000000000000000000000000000000000
--- a/conversations/conv_051427.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.379112046615806,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.1269544870313,
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-      "start_frame": 0,
-      "duration_frames": 82031,
-      "overlap": false,
-      "utterance_id": "8848-293957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8848-293957.flac |",
-      "real_speaker_id": "8848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.26297936058527,
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-      "utterance_id": "5340-8682",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8682.flac |",
-      "real_speaker_id": "5340",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.146625170774122,
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-      "duration_frames": 72830,
-      "overlap": false,
-      "utterance_id": "8848-293963",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8848-293963.flac |",
-      "real_speaker_id": "8848",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.736011745806417,
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-      "start_frame": 251776,
-      "duration_frames": 92186,
-      "overlap": true,
-      "utterance_id": "5340-8685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5340-8685.flac |",
-      "real_speaker_id": "5340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.81920549946418,
-      "end_time": 27.908400751671145,
-      "duration": 5.089195252206968,
-      "start_frame": 365107,
-      "duration_frames": 81427,
-      "overlap": false,
-      "utterance_id": "8848-293957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8848-293957.flac |",
-      "real_speaker_id": "8848",
-      "position_frames": 82031
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.954197925303564,
-      "end_time": 31.379112046615806,
-      "duration": 3.4249141213122414,
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-      "duration_frames": 54798,
-      "overlap": true,
-      "utterance_id": "4174-69287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4174-69287.flac |",
-      "real_speaker_id": "4174",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-      "start_time": 6.855988332555846
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5340/cough/0012.wav",
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-      "start_time": 16.730301712944595,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8848/laugh/0036.wav",
-      "duration": 1.08,
-      "start_time": 23.869707420428817,
-      "speaker_id": "8848"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051431.json b/conversations/conv_051431.json
deleted file mode 100644
index 3baaeb99c75ee408432d4deacbfe5b5bd26f950c..0000000000000000000000000000000000000000
--- a/conversations/conv_051431.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.432858314587858,
-      "duration": 4.432858314587858,
-      "start_frame": 0,
-      "duration_frames": 70925,
-      "overlap": false,
-      "utterance_id": "4138-11079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4138-11079.flac |",
-      "real_speaker_id": "4138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.123397965969657,
-      "end_time": 8.548516976281602,
-      "duration": 3.425119010311946,
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-      "duration_frames": 54801,
-      "overlap": false,
-      "utterance_id": "30-4447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/30-4447.flac |",
-      "real_speaker_id": "30",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.00112500386119,
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-      "duration_frames": 105630,
-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.174638193783927,
-      "end_time": 21.529005184769986,
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-      "overlap": true,
-      "utterance_id": "30-4445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/30-4445.flac |",
-      "real_speaker_id": "30",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.02257264347366,
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 105630
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "start_frame": 433153,
-      "duration_frames": 61178,
-      "overlap": false,
-      "utterance_id": "30-4445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/30-4445.flac |",
-      "real_speaker_id": "30",
-      "position_frames": 85669
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.357327268346587,
-      "end_time": 32.0,
-      "duration": 0.6426727316534127,
-      "start_frame": 501717,
-      "duration_frames": 10282,
-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 176072
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-      "start_time": 6.4442257864965
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
-      "duration": 0.2651700680272109,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4138/cough/0079.wav",
-      "duration": 0.34674719237491197,
-      "start_time": 0,
-      "speaker_id": "4138"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3540/cough/0068.wav",
-      "duration": 1.12,
-      "start_time": 15.785116296404171,
-      "speaker_id": "3540"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/30/cough/0052.wav",
-      "duration": 0.7847277917819202,
-      "start_time": 31.067503690188392,
-      "speaker_id": "30"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051441.json b/conversations/conv_051441.json
deleted file mode 100644
index e020098f9706a6a38a7fdda38124d1d687c3769f..0000000000000000000000000000000000000000
--- a/conversations/conv_051441.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "utterance_id": "708-129393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
-      "position_frames": 92147
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-  ],
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-      "duration": 0.6135383088438358,
-      "start_time": 28.68088139740806,
-      "speaker_id": "708"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051446.json b/conversations/conv_051446.json
deleted file mode 100644
index fc825370d2b7e6c12d8e691e127ffcebc4f6fda2..0000000000000000000000000000000000000000
--- a/conversations/conv_051446.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "7046-85651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-85651.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.17629301745733,
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-      "duration": 4.900741985339991,
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-      "utterance_id": "7107-245689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7335-290365.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7335-290365.flac |",
-      "real_speaker_id": "7335",
-      "position_frames": 65869
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7107-245689.flac |",
-      "real_speaker_id": "7107",
-      "position_frames": 136061
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.438607276584992,
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-      "duration": 0.5613927234150076,
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-      "utterance_id": "7335-290365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7335-290365.flac |",
-      "real_speaker_id": "7335",
-      "position_frames": 144181
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-  "background_events": [],
-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051450.json b/conversations/conv_051450.json
deleted file mode 100644
index 6815cc6d1f590ce450be36cf5a349a94940b9c2b..0000000000000000000000000000000000000000
--- a/conversations/conv_051450.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "4519-6171",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8051-295385.flac |",
-      "real_speaker_id": "8051",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-80189.flac |",
-      "real_speaker_id": "4519",
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-      "real_speaker_id": "8051",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4519-80189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-80189.flac |",
-      "real_speaker_id": "4519",
-      "position_frames": 100660
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "speaker_id": "8051"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051451.json b/conversations/conv_051451.json
deleted file mode 100644
index 99239a7dc2081f12209985d7a0d4945d9e85af08..0000000000000000000000000000000000000000
--- a/conversations/conv_051451.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6912-70847.flac |",
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
-      "duration": 1.4851930802513835,
-      "start_time": 1.1273854616013608
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
-      "duration": 3.1567079866125587,
-      "start_time": 14.41960000978622
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7691/laugh/0107.wav",
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-      "start_time": 5.692207037369271,
-      "speaker_id": "7691"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2269/laugh/0115.wav",
-      "duration": 0.9940960297030423,
-      "start_time": 19.176946186647573,
-      "speaker_id": "2269"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2269/cough/0048.wav",
-      "duration": 0.8028198818152317,
-      "start_time": 19.071842386596636,
-      "speaker_id": "2269"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7691/cough/0052.wav",
-      "duration": 0.7527598900494934,
-      "start_time": 23.496243302920846,
-      "speaker_id": "7691"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7691/laugh/0075.wav",
-      "duration": 0.8012828436536262,
-      "start_time": 30.61948876363748,
-      "speaker_id": "7691"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051466.json b/conversations/conv_051466.json
deleted file mode 100644
index 09d831e7037802b5714d88e162cb85d4809203d1..0000000000000000000000000000000000000000
--- a/conversations/conv_051466.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.40403969270023,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.68631221606621,
-      "duration": 5.68631221606621,
-      "start_frame": 0,
-      "duration_frames": 90980,
-      "overlap": false,
-      "utterance_id": "5190-87766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87766.flac |",
-      "real_speaker_id": "5190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.918256900222512,
-      "end_time": 10.955868663443635,
-      "duration": 4.037611763221123,
-      "start_frame": 110692,
-      "duration_frames": 64601,
-      "overlap": false,
-      "utterance_id": "5190-87766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87766.flac |",
-      "real_speaker_id": "5190",
-      "position_frames": 90980
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.998263862659915,
-      "end_time": 15.051167667335896,
-      "duration": 3.0529038046759824,
-      "start_frame": 191972,
-      "duration_frames": 48846,
-      "overlap": false,
-      "utterance_id": "6609-111359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6609-111359.flac |",
-      "real_speaker_id": "6609",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.26096504713561,
-      "end_time": 21.833524134104678,
-      "duration": 6.572559086969067,
-      "start_frame": 244175,
-      "duration_frames": 105160,
-      "overlap": false,
-      "utterance_id": "2485-143898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-143898.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.53838249552832,
-      "end_time": 29.076728743341988,
-      "duration": 6.538346247813666,
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-      "duration_frames": 104613,
-      "overlap": false,
-      "utterance_id": "5190-87766",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87766.flac |",
-      "real_speaker_id": "5190",
-      "position_frames": 155581
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.521034032576082,
-      "end_time": 31.40403969270023,
-      "duration": 1.883005660124148,
-      "start_frame": 472336,
-      "duration_frames": 30128,
-      "overlap": true,
-      "utterance_id": "2485-143898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2485-143898.flac |",
-      "real_speaker_id": "2485",
-      "position_frames": 105160
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5190/laugh/0003.wav",
-      "duration": 1.08,
-      "start_time": 7.3934870350023845,
-      "speaker_id": "5190"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5190/cough/0061.wav",
-      "duration": 0.7980763830000821,
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-      "speaker_id": "5190"
-    },
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6609/cough/0089.wav",
-      "duration": 1.3341220813503796,
-      "start_time": 10.595697027178,
-      "speaker_id": "6609"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2485/cough/0131.wav",
-      "duration": 0.8663050804567343,
-      "start_time": 19.77660358047736,
-      "speaker_id": "2485"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5190/laugh/0099.wav",
-      "duration": 1.56,
-      "start_time": 29.372853678657094,
-      "speaker_id": "5190"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051470.json b/conversations/conv_051470.json
deleted file mode 100644
index a32babc5c7fcf18e602b2e9fcb4778010630ad0f..0000000000000000000000000000000000000000
--- a/conversations/conv_051470.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.560797155546705,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.109909603360966,
-      "duration": 5.109909603360966,
-      "start_frame": 0,
-      "duration_frames": 81758,
-      "overlap": false,
-      "utterance_id": "984-137141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137141.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.67048406166248,
-      "end_time": 11.728771842576133,
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-      "overlap": false,
-      "utterance_id": "5185-24770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5185-24770.flac |",
-      "real_speaker_id": "5185",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.18483049453332,
-      "end_time": 16.36559748737342,
-      "duration": 4.180766992840102,
-      "start_frame": 194957,
-      "duration_frames": 66892,
-      "overlap": false,
-      "utterance_id": "984-137141",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137141.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 81758
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.318984234747344,
-      "end_time": 24.10208705785261,
-      "duration": 6.783102823105267,
-      "start_frame": 277103,
-      "duration_frames": 108529,
-      "overlap": false,
-      "utterance_id": "7867-110528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110528.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.674212324071213,
-      "end_time": 31.560797155546705,
-      "duration": 6.886584831475492,
-      "start_frame": 394787,
-      "duration_frames": 110185,
-      "overlap": false,
-      "utterance_id": "7867-110528",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110528.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 108529
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
-      "duration": 12.52732138807657,
-      "start_time": 14.085157171960056
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
-      "duration": 2.91977157159333,
-      "start_time": 9.433771563403116
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/984/laugh/0050.wav",
-      "duration": 1.0557914060457503,
-      "start_time": 0,
-      "speaker_id": "984"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051482.json b/conversations/conv_051482.json
deleted file mode 100644
index 8e8c33fe0a89424b5072b82430471628942851ef..0000000000000000000000000000000000000000
--- a/conversations/conv_051482.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.446494854030924,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.132107527323819,
-      "duration": 5.132107527323819,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4667-92224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92224.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.747811371162346,
-      "end_time": 10.559143690504015,
-      "duration": 3.8113323193416706,
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-      "overlap": false,
-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.933108803025826,
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-      "duration_frames": 64396,
-      "overlap": false,
-      "utterance_id": "3346-158751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-158751.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.510901018921192,
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-      "utterance_id": "4667-102196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.990672569769362,
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-      "utterance_id": "3346-7599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-7599.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.969153092813848,
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-      "duration": 5.477341761217076,
-      "start_frame": 415506,
-      "duration_frames": 87637,
-      "overlap": false,
-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 60981
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-      "start_time": 16.586793314229915
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/laugh/0081.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "4667"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/laugh/0056.wav",
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-      "start_time": 14.274693558565453,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3346/laugh/0009.wav",
-      "duration": 0.6785396813354115,
-      "start_time": 23.879894792129313,
-      "speaker_id": "3346"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051485.json b/conversations/conv_051485.json
deleted file mode 100644
index 56f0ea98c791c40842d51b4a7c828b4dabdac53a..0000000000000000000000000000000000000000
--- a/conversations/conv_051485.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.581710514227588,
-      "duration": 4.581710514227588,
-      "start_frame": 0,
-      "duration_frames": 73307,
-      "overlap": false,
-      "utterance_id": "7333-94827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7333-94827.flac |",
-      "real_speaker_id": "7333",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.001742417462183,
-      "end_time": 11.860101382745796,
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-      "utterance_id": "7467-261121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.123085702407819,
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-      "duration": 3.6285399556114895,
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-      "duration_frames": 58056,
-      "overlap": false,
-      "utterance_id": "4234-40345",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-40345.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.494668120983935,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
-      "position_frames": 109733
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-187738.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.884226122131757,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
-      "real_speaker_id": "7467",
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-      "duration": 1.56,
-      "start_time": 27.104322746817292,
-      "speaker_id": "4234"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051489.json b/conversations/conv_051489.json
deleted file mode 100644
index bcb030dee89eacdd19a8f7a905fccf787ee21d63..0000000000000000000000000000000000000000
--- a/conversations/conv_051489.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 6.129804806152796,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
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-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 92065
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 181186
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.442469038991902,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 76612
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.162061567000876,
-      "end_time": 32.0,
-      "duration": 3.837938432999124,
-      "start_frame": 450592,
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-      "utterance_id": "2638-10172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2638-10172.flac |",
-      "real_speaker_id": "2638",
-      "position_frames": 231259
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051493.json b/conversations/conv_051493.json
deleted file mode 100644
index 65992141f45d461a192202e422df26012861f9e5..0000000000000000000000000000000000000000
--- a/conversations/conv_051493.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24747.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4691.flac |",
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-      "real_speaker_id": "3227",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3228-4690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4690.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 108393
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.598886215345274,
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-      "duration": 1.4011137846547257,
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-      "utterance_id": "3227-24784",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24784.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "start_time": 9.218541397250448,
-      "speaker_id": "3228"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 11.956451602968247,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3227/laugh/0006.wav",
-      "duration": 1.6,
-      "start_time": 30.4,
-      "speaker_id": "3227"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051494.json b/conversations/conv_051494.json
deleted file mode 100644
index 7bd24c61d16a16ce383ed94142993bee2430dd65..0000000000000000000000000000000000000000
--- a/conversations/conv_051494.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "93-126208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-126208.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.794519533729979,
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-      "overlap": true,
-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "3334-171008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.7858688343909,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-126209.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "3334-171008",
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-      "real_speaker_id": "3334",
-      "position_frames": 91109
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "6157-40556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 55194
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "duration": 0.84,
-      "start_time": 27.154034611315833,
-      "speaker_id": "3334"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6157/laugh/0082.wav",
-      "duration": 1.4,
-      "start_time": 26.01027096187533,
-      "speaker_id": "6157"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6157/cough/0064.wav",
-      "duration": 0.88,
-      "start_time": 26.526346739347144,
-      "speaker_id": "6157"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051503.json b/conversations/conv_051503.json
deleted file mode 100644
index aa0c74f8d1d044edab3d94993d1af464b884c94a..0000000000000000000000000000000000000000
--- a/conversations/conv_051503.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "6943-85168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85168.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 5.974545355628945,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85172.flac |",
-      "real_speaker_id": "6943",
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-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051504.json b/conversations/conv_051504.json
deleted file mode 100644
index 7194995a4a1c09dcacc20b30ec45507424836602..0000000000000000000000000000000000000000
--- a/conversations/conv_051504.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2146-136610.flac |",
-      "real_speaker_id": "2146",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.906957540971946,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/82-122859.flac |",
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-      "real_speaker_id": "82",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7584-101882.flac |",
-      "real_speaker_id": "7584",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051514.json b/conversations/conv_051514.json
deleted file mode 100644
index 4e9c0b5f84f925e208477d5b66f331c8fd73c631..0000000000000000000000000000000000000000
--- a/conversations/conv_051514.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 0
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-      "real_speaker_id": "8476",
-      "position_frames": 147377
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-    {
-      "segment_id": "seg0006",
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-  ],
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051515.json b/conversations/conv_051515.json
deleted file mode 100644
index 6352642f60e6e460ed9b817362e64ca3f955e23b..0000000000000000000000000000000000000000
--- a/conversations/conv_051515.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5918/cough/0077.wav",
-      "duration": 0.8579347065458574,
-      "start_time": 23.942201781089718,
-      "speaker_id": "5918"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051519.json b/conversations/conv_051519.json
deleted file mode 100644
index 2699c1b010b29b2c1bc7ee429ae177f3bc8071e9..0000000000000000000000000000000000000000
--- a/conversations/conv_051519.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.547689183400102,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.4191021445213465,
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-      "duration_frames": 86705,
-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.605517756605041,
-      "end_time": 11.51607967613937,
-      "duration": 5.91056191953433,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.982466515068323,
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-      "start_frame": 191719,
-      "duration_frames": 70426,
-      "overlap": false,
-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 86705
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.011483256116854,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 157131
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.01352584754138,
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-      "utterance_id": "7339-86804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7339-86804.flac |",
-      "real_speaker_id": "7339",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.149734907879427,
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-      "utterance_id": "5459-41260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5459-41260.flac |",
-      "real_speaker_id": "5459",
-      "position_frames": 208495
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 21.529589534855536,
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_051523.json b/conversations/conv_051523.json
deleted file mode 100644
index f9a4ae2968cd619fa98b57f291938dfaf13a9b5e..0000000000000000000000000000000000000000
--- a/conversations/conv_051523.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2346-152201.flac |",
-      "real_speaker_id": "2346",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 79513
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.942241220198675,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 90056
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2346/laugh/0059.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.6181032704725654,
-      "start_time": 18.3506241792073,
-      "speaker_id": "7208"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051528.json b/conversations/conv_051528.json
deleted file mode 100644
index d200376d9c4b671ce26bd3ed95ecb99b493ae968..0000000000000000000000000000000000000000
--- a/conversations/conv_051528.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.212871496996872,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69649.flac |",
-      "real_speaker_id": "6484",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/923-132307.flac |",
-      "real_speaker_id": "923",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69649.flac |",
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-      "position_frames": 48447
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-    {
-      "segment_id": "seg0003",
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-      "overlap": true,
-      "utterance_id": "4420-5802",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "923",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 71785
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_051535.json b/conversations/conv_051535.json
deleted file mode 100644
index defe7675173f46cba8964e251e46a3e4668d9056..0000000000000000000000000000000000000000
--- a/conversations/conv_051535.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4841-26660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26660.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4492-8907.flac |",
-      "real_speaker_id": "4492",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5230-4863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4863.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
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-    {
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-      "position_frames": 0
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/146200_0.wav",
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\ No newline at end of file
diff --git a/conversations/conv_051539.json b/conversations/conv_051539.json
deleted file mode 100644
index 89e85199192e1c08706e8e2dee1971ff7755e2f7..0000000000000000000000000000000000000000
--- a/conversations/conv_051539.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.9753636443032665,
-      "duration": 4.9753636443032665,
-      "start_frame": 0,
-      "duration_frames": 79605,
-      "overlap": false,
-      "utterance_id": "8291-282929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-282929.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.752251415959014,
-      "end_time": 10.571536664263192,
-      "duration": 4.819285248304178,
-      "start_frame": 92036,
-      "duration_frames": 77108,
-      "overlap": false,
-      "utterance_id": "2012-139355",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139355.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.812690702389375,
-      "end_time": 15.31271418994291,
-      "duration": 4.500023487553533,
-      "start_frame": 173003,
-      "duration_frames": 72000,
-      "overlap": false,
-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.759345921765092,
-      "end_time": 22.121180064131288,
-      "duration": 5.361834142366197,
-      "start_frame": 268149,
-      "duration_frames": 85789,
-      "overlap": false,
-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.631640092263112,
-      "end_time": 26.693128254893477,
-      "duration": 4.061488162630365,
-      "start_frame": 362106,
-      "duration_frames": 64983,
-      "overlap": false,
-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 72000
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.952527259436522,
-      "end_time": 32.0,
-      "duration": 5.047472740563478,
-      "start_frame": 431240,
-      "duration_frames": 80759,
-      "overlap": false,
-      "utterance_id": "8291-276745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8291-276745.flac |",
-      "real_speaker_id": "8291",
-      "position_frames": 85789
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 25.20655328798186,
-      "start_time": 1.123295946033817
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
-      "duration": 4.183056343431094,
-      "start_time": 17.018106895042045
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/cough/0081.wav",
-      "duration": 0.96,
-      "start_time": 2.413364343320722,
-      "speaker_id": "8291"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2012/cough/0106.wav",
-      "duration": 0.33062823541733777,
-      "start_time": 5.333983403933227,
-      "speaker_id": "2012"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/835/cough/0043.wav",
-      "duration": 0.5586627430032541,
-      "start_time": 10.068962322950274,
-      "speaker_id": "835"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8291/laugh/0099.wav",
-      "duration": 1.68,
-      "start_time": 22.352789294538983,
-      "speaker_id": "8291"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/835/cough/0064.wav",
-      "duration": 1.1375374939175646,
-      "start_time": 26.7530501223101,
-      "speaker_id": "835"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051542.json b/conversations/conv_051542.json
deleted file mode 100644
index 39b4e848c3b4813c2300ae388f29c0f2c411a629..0000000000000000000000000000000000000000
--- a/conversations/conv_051542.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.800240206377818,
-      "duration": 5.800240206377818,
-      "start_frame": 0,
-      "duration_frames": 92803,
-      "overlap": false,
-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.13812225015969,
-      "end_time": 9.30278259054886,
-      "duration": 3.16466034038917,
-      "start_frame": 98209,
-      "duration_frames": 50634,
-      "overlap": false,
-      "utterance_id": "2526-156076",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156076.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.317992742422938,
-      "end_time": 16.197903354007472,
-      "duration": 5.879910611584534,
-      "start_frame": 165087,
-      "duration_frames": 94078,
-      "overlap": false,
-      "utterance_id": "1040-133433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 92803
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.550372839857772,
-      "end_time": 22.915700643929178,
-      "duration": 6.365327804071404,
-      "start_frame": 264805,
-      "duration_frames": 101845,
-      "overlap": false,
-      "utterance_id": "2526-156098",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156098.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.522209855862016,
-      "end_time": 28.335316989803083,
-      "duration": 4.8131071339410685,
-      "start_frame": 376355,
-      "duration_frames": 77009,
-      "overlap": false,
-      "utterance_id": "2356-154880",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2356-154880.flac |",
-      "real_speaker_id": "2356",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.542708654100245,
-      "end_time": 32.0,
-      "duration": 2.4572913458997547,
-      "start_frame": 472683,
-      "duration_frames": 39316,
-      "overlap": false,
-      "utterance_id": "2526-156061",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2526-156061.flac |",
-      "real_speaker_id": "2526",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.5368857993850886,
-      "start_time": 2.553805686533502
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1040/laugh/0038.wav",
-      "duration": 1.28,
-      "start_time": 5.912382750846083,
-      "speaker_id": "1040"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1040/cough/0002.wav",
-      "duration": 1.1236803524614971,
-      "start_time": 16.326089525722065,
-      "speaker_id": "1040"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2526/cough/0139.wav",
-      "duration": 0.5341636392649347,
-      "start_time": 20.1208350985045,
-      "speaker_id": "2526"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2526/laugh/0132.wav",
-      "duration": 0.5817120466747994,
-      "start_time": 30.688658640701032,
-      "speaker_id": "2526"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2526/cough/0087.wav",
-      "duration": 1.2086792596079716,
-      "start_time": 28.306974922984494,
-      "speaker_id": "2526"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051554.json b/conversations/conv_051554.json
deleted file mode 100644
index dc91f50639d0fe0843d52bbd745c88b019d61a2f..0000000000000000000000000000000000000000
--- a/conversations/conv_051554.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.431863453088458,
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-      "duration_frames": 102909,
-      "overlap": false,
-      "utterance_id": "5230-4863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4863.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.741046764831382,
-      "end_time": 12.729296920403073,
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-      "utterance_id": "39-121914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121914.flac |",
-      "real_speaker_id": "39",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5230-4863",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4863.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 102909
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "39-121916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121916.flac |",
-      "real_speaker_id": "39",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5230-4879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4879.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "39-121916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/39-121916.flac |",
-      "real_speaker_id": "39",
-      "position_frames": 82580
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5230/cough/0065.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/39/cough/0012.wav",
-      "duration": 0.3680562845923035,
-      "start_time": 21.79702892597452,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051558.json b/conversations/conv_051558.json
deleted file mode 100644
index 94862bfaf6b476c90474c6822452b8e5ce0708c7..0000000000000000000000000000000000000000
--- a/conversations/conv_051558.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.31572025191903,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.394185219540963,
-      "duration": 4.394185219540963,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6610-34596",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6610-34596.flac |",
-      "real_speaker_id": "6610",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.970245238939831,
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-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
-      "real_speaker_id": "1695",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1695-142312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1695-142312.flac |",
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-    {
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-    {
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-      "real_speaker_id": "2946",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_051562.json b/conversations/conv_051562.json
deleted file mode 100644
index 90812fb7b045dbd801f31b2549321b0a3b646765..0000000000000000000000000000000000000000
--- a/conversations/conv_051562.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 76736
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 158856
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_051569.json b/conversations/conv_051569.json
deleted file mode 100644
index 87a6ebfebb82708027ce456c1c8a4598f4627322..0000000000000000000000000000000000000000
--- a/conversations/conv_051569.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_051574.json b/conversations/conv_051574.json
deleted file mode 100644
index a42b05306189fcecf106dd0e085a53aa8c86e095..0000000000000000000000000000000000000000
--- a/conversations/conv_051574.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-}
\ No newline at end of file
diff --git a/conversations/conv_051578.json b/conversations/conv_051578.json
deleted file mode 100644
index fc5630105fee583aae973ed8198454348ac5c62f..0000000000000000000000000000000000000000
--- a/conversations/conv_051578.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4813-248638.flac |",
-      "real_speaker_id": "4813",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.574124474066743,
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-      "utterance_id": "7354-87676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7354-87676.flac |",
-      "real_speaker_id": "7354",
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "speaker_id": "7354"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051581.json b/conversations/conv_051581.json
deleted file mode 100644
index 231e2743f788daa39d7d9a8f8060af70a0088c25..0000000000000000000000000000000000000000
--- a/conversations/conv_051581.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.670020139475641,
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-      "utterance_id": "8119-115686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8119-115686.flac |",
-      "real_speaker_id": "8119",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.209029667181937,
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-      "overlap": true,
-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 102741
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.454350123215306,
-      "end_time": 24.424520444223244,
-      "duration": 5.970170321007939,
-      "start_frame": 295269,
-      "duration_frames": 95522,
-      "overlap": false,
-      "utterance_id": "6153-59414",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-59414.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.598253780196657,
-      "end_time": 32.0,
-      "duration": 6.401746219803343,
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-      "duration_frames": 102427,
-      "overlap": false,
-      "utterance_id": "6153-62535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-62535.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.46,
-      "start_time": 30.54,
-      "speaker_id": "6153"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051586.json b/conversations/conv_051586.json
deleted file mode 100644
index 1baa29a3f509760e818a147ea6273052f8938404..0000000000000000000000000000000000000000
--- a/conversations/conv_051586.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7320-104988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-104988.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "7320-93280",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
-      "real_speaker_id": "807",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-93280.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 100166
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.06961193370512,
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-      "duration": 0.9303880662948814,
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-      "overlap": false,
-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
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-      "duration": 1.52,
-      "start_time": 30.48,
-      "speaker_id": "4846"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051590.json b/conversations/conv_051590.json
deleted file mode 100644
index 9978f4181ba16909a3a0339c7ffc6639fb9d6282..0000000000000000000000000000000000000000
--- a/conversations/conv_051590.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5133-80690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-80690.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.528435822942031,
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-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
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-    {
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-      "utterance_id": "5133-30591",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5133-30591.flac |",
-      "real_speaker_id": "5133",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.050331034814693,
-      "end_time": 21.77474929726907,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2733-28252.flac |",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "8058",
-      "position_frames": 108346
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2733/laugh/0044.wav",
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-      "start_time": 15.590304104840214,
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-    {
-      "event_class": "laugh",
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-      "start_time": 29.671587001014707,
-      "speaker_id": "5133"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051597.json b/conversations/conv_051597.json
deleted file mode 100644
index 47d6e0652f205393221479784326f65d7e6cd33d..0000000000000000000000000000000000000000
--- a/conversations/conv_051597.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3334-171008",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4455-116276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4455-116276.flac |",
-      "real_speaker_id": "4455",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 85389
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-138883.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 78025
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.698374232704438,
-      "end_time": 32.0,
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-      "utterance_id": "1132-138883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-138883.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 188817
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
-      "duration": 19.51045351473923,
-      "start_time": 4.69864801469013
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.3,
-      "start_time": 22.52277138969655,
-      "speaker_id": "3334"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 30.84,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1132/cough/0122.wav",
-      "duration": 1.2825817896404366,
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-      "speaker_id": "1132"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051601.json b/conversations/conv_051601.json
deleted file mode 100644
index e222ee23cfa364a20b4ac9e98786dabc830de57f..0000000000000000000000000000000000000000
--- a/conversations/conv_051601.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.47913299835363,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.751853415220526,
-      "duration": 4.751853415220526,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "2136-5147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5147.flac |",
-      "real_speaker_id": "2136",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.125895823946042,
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-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.006743096483167,
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-      "utterance_id": "8664-295007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-295007.flac |",
-      "real_speaker_id": "8664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.326689953901727,
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-      "utterance_id": "8664-295007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-295007.flac |",
-      "real_speaker_id": "8664",
-      "position_frames": 89316
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6371-63713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6371-63713.flac |",
-      "real_speaker_id": "6371",
-      "position_frames": 72264
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.36846617394799,
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-      "duration": 4.110666824405641,
-      "start_frame": 437895,
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-      "overlap": true,
-      "utterance_id": "8664-295007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8664-295007.flac |",
-      "real_speaker_id": "8664",
-      "position_frames": 166320
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Blender",
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051606.json b/conversations/conv_051606.json
deleted file mode 100644
index 75f0f7f54bc2f954c501b42107519fa27328dae1..0000000000000000000000000000000000000000
--- a/conversations/conv_051606.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1681-142313",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142313.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "7316",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-96095.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.275297638809704,
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-      "utterance_id": "1681-142301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.6263450970636,
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-      "overlap": false,
-      "utterance_id": "6548-39672",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-39672.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 2.734588921624166,
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-      "utterance_id": "6548-65924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-65924.flac |",
-      "real_speaker_id": "6548",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051610.json b/conversations/conv_051610.json
deleted file mode 100644
index 473d8906880c5723acf04b101fa0d18e67f0c88b..0000000000000000000000000000000000000000
--- a/conversations/conv_051610.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.2828479809022695,
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-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.3750676653890945,
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-      "utterance_id": "2201-7371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2201-7371.flac |",
-      "real_speaker_id": "2201",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 52525
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-    {
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-      "utterance_id": "2201-151776",
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-      "real_speaker_id": "2201",
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-    {
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-      "utterance_id": "3790-140725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration_frames": 95354,
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-      "utterance_id": "4327-4714",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4327-4714.flac |",
-      "real_speaker_id": "4327",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/laugh/0030.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4327/laugh/0066.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051617.json b/conversations/conv_051617.json
deleted file mode 100644
index 794533de566f66751d0d080af503f0877564f0ca..0000000000000000000000000000000000000000
--- a/conversations/conv_051617.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.4783907437727444,
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-      "start_frame": 0,
-      "duration_frames": 55654,
-      "overlap": false,
-      "utterance_id": "7481-101276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2769-169619.flac |",
-      "real_speaker_id": "2769",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_051626.json b/conversations/conv_051626.json
deleted file mode 100644
index a752eee8cf981ed21c8f75cabfb01560439747a6..0000000000000000000000000000000000000000
--- a/conversations/conv_051626.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58012.flac |",
-      "real_speaker_id": "6080",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5036-18451.flac |",
-      "real_speaker_id": "5036",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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\ No newline at end of file
diff --git a/conversations/conv_051630.json b/conversations/conv_051630.json
deleted file mode 100644
index e5dc04fa1aec4df08a79dfe73b3ad067cf29cabd..0000000000000000000000000000000000000000
--- a/conversations/conv_051630.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_051631.json b/conversations/conv_051631.json
deleted file mode 100644
index 6072f6c2a79c9976ecd66ebeed37a0b38806eb2c..0000000000000000000000000000000000000000
--- a/conversations/conv_051631.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5567/cough/0079.wav",
-      "duration": 0.8115659370822099,
-      "start_time": 16.61943706060495,
-      "speaker_id": "5567"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8631/laugh/0032.wav",
-      "duration": 0.92,
-      "start_time": 27.13493834990989,
-      "speaker_id": "8631"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051640.json b/conversations/conv_051640.json
deleted file mode 100644
index d9b29b2c2abccc50391cb9e34c89c8efbd619b35..0000000000000000000000000000000000000000
--- a/conversations/conv_051640.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.305759456560275,
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-      "overlap": false,
-      "utterance_id": "6683-67218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-67218.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.244722496061056,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-132586.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.496811154429633,
-      "end_time": 15.865957809323215,
-      "duration": 5.369146654893582,
-      "start_frame": 167948,
-      "duration_frames": 85906,
-      "overlap": false,
-      "utterance_id": "1187-136238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136238.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.252367581275077,
-      "end_time": 21.768786408987218,
-      "duration": 5.516418827712139,
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-      "duration_frames": 88262,
-      "overlap": false,
-      "utterance_id": "6683-63839",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-63839.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.400183599822885,
-      "end_time": 29.275767301314154,
-      "duration": 6.875583701491268,
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-      "overlap": false,
-      "utterance_id": "1187-136220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1187-136220.flac |",
-      "real_speaker_id": "1187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.793171790313316,
-      "end_time": 32.0,
-      "duration": 2.206828209686684,
-      "start_frame": 476690,
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-      "overlap": false,
-      "utterance_id": "3125-163698",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3125-163698.flac |",
-      "real_speaker_id": "3125",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051647.json b/conversations/conv_051647.json
deleted file mode 100644
index e8c8fc0684840dc3478abadbe1808542ef8acb9d..0000000000000000000000000000000000000000
--- a/conversations/conv_051647.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.90728359960654,
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-      "overlap": false,
-      "utterance_id": "2587-160609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-160609.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.381383281468518,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41166.flac |",
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-      "overlap": false,
-      "utterance_id": "2587-160609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-160609.flac |",
-      "real_speaker_id": "2587",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "5637-41166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41166.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 83934
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.221984303062417,
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-      "overlap": false,
-      "utterance_id": "5637-41170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5637-41170.flac |",
-      "real_speaker_id": "5637",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.58439911466715,
-      "end_time": 32.0,
-      "duration": 1.4156008853328501,
-      "start_frame": 489350,
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-      "overlap": false,
-      "utterance_id": "2587-159393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2587-159393.flac |",
-      "real_speaker_id": "2587",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
-      "duration": 1.3821048961192277,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "start_time": 18.176550401002014,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5637/laugh/0021.wav",
-      "duration": 1.32,
-      "start_time": 30.106324273914012,
-      "speaker_id": "5637"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051651.json b/conversations/conv_051651.json
deleted file mode 100644
index 4178278a6bcff98cbae7d560b0669eebd9188f86..0000000000000000000000000000000000000000
--- a/conversations/conv_051651.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "utterance_id": "4490-16003",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16003.flac |",
-      "real_speaker_id": "4490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.214051646729669,
-      "end_time": 12.727857339762071,
-      "duration": 6.513805693032403,
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-      "utterance_id": "2730-154437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2730-154437.flac |",
-      "real_speaker_id": "2730",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2817-142380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2817-142380.flac |",
-      "real_speaker_id": "2817",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.677369837789392,
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-      "utterance_id": "4490-16002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16002.flac |",
-      "real_speaker_id": "4490",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.68911376652294,
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-      "real_speaker_id": "4490",
-      "position_frames": 89391
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2730-154436",
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-      "real_speaker_id": "2730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.416896247835208,
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-      "duration": 0.5831037521647922,
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-      "duration_frames": 9329,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4490-16002.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-    {
-      "event_class": "cough",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4490/cough/0033.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051656.json b/conversations/conv_051656.json
deleted file mode 100644
index c16cccb44e658d082318b0532bed3e9f7bc6f7a0..0000000000000000000000000000000000000000
--- a/conversations/conv_051656.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1260-139266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139266.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "speaker_id": "3025"
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-      "event_class": "laugh",
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-      "duration": 1.3,
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-      "speaker_id": "1260"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1260/laugh/0089.wav",
-      "duration": 1.08,
-      "start_time": 22.659781835039148,
-      "speaker_id": "1260"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051667.json b/conversations/conv_051667.json
deleted file mode 100644
index 9eac7f3816cde47605c74e850a884401a5f864ff..0000000000000000000000000000000000000000
--- a/conversations/conv_051667.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "336-125874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125874.flac |",
-      "real_speaker_id": "336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.161323579917129,
-      "end_time": 10.811512513597503,
-      "duration": 5.650188933680373,
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-      "overlap": false,
-      "utterance_id": "6614-67846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67846.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 0
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-      "utterance_id": "1859-145703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67845.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.104470956790884,
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-      "utterance_id": "1859-145703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1859-145703.flac |",
-      "real_speaker_id": "1859",
-      "position_frames": 78725
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.02546587730382,
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-      "duration": 2.9745341226961806,
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-      "duration_frames": 47592,
-      "overlap": false,
-      "utterance_id": "6614-67845",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67845.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 66428
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
-      "duration": 0.23598639455782314,
-      "start_time": 11.242117391850226
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 13.962674915557347,
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-    {
-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1859/laugh/0004.wav",
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-      "start_time": 23.825319291489826,
-      "speaker_id": "1859"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051671.json b/conversations/conv_051671.json
deleted file mode 100644
index 940f56b2f3f73cdbceba78bd38e9ab66c2a3eb4f..0000000000000000000000000000000000000000
--- a/conversations/conv_051671.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129514.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "overlap": false,
-      "utterance_id": "119-129513",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129513.flac |",
-      "real_speaker_id": "119",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.295081932718983,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.128976892009977,
-      "end_time": 26.743510022636762,
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-      "overlap": false,
-      "utterance_id": "6300-39661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 85217
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.74859057834804,
-      "end_time": 32.0,
-      "duration": 4.25140942165196,
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-      "overlap": false,
-      "utterance_id": "119-129513",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/119-129513.flac |",
-      "real_speaker_id": "119",
-      "position_frames": 81654
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.36,
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-    {
-      "event_class": "cough",
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051684.json b/conversations/conv_051684.json
deleted file mode 100644
index d00aa9ac1bf991dbd455d97060231d5ecb1184b6..0000000000000000000000000000000000000000
--- a/conversations/conv_051684.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "2997",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2997-163246",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_051685.json b/conversations/conv_051685.json
deleted file mode 100644
index 282f793951ac944025daa7b99f12174da00f1be2..0000000000000000000000000000000000000000
--- a/conversations/conv_051685.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4807-26853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26853.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26852.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-276907.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.38332545406559,
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-      "utterance_id": "4807-26853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4807-26853.flac |",
-      "real_speaker_id": "4807",
-      "position_frames": 125798
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-  "background_events": [
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-      "event_class": "Frying",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "speaker_id": "7995"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_051688.json b/conversations/conv_051688.json
deleted file mode 100644
index e6502132dc7e14893fb689bf5d05e6c0f04b6981..0000000000000000000000000000000000000000
--- a/conversations/conv_051688.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.503686836134573,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22447.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
-      "start_time": 5.300011431188783,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-114962.flac |",
-      "real_speaker_id": "6535",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.954144766920052,
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-      "utterance_id": "5567-22441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22441.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 18.021725857000966,
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-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.012864039815884,
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-      "utterance_id": "6535-114962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-114962.flac |",
-      "real_speaker_id": "6535",
-      "position_frames": 102549
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22447.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 73887
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051692.json b/conversations/conv_051692.json
deleted file mode 100644
index 9db26aa0da26f5ecec8448ed511de1b3526ff42c..0000000000000000000000000000000000000000
--- a/conversations/conv_051692.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1348-135826.flac |",
-      "real_speaker_id": "1348",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1348-135826.flac |",
-      "real_speaker_id": "1348",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
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-      "utterance_id": "666-11244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 92545
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.447200370038875,
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-      "duration": 5.552799629961125,
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-      "overlap": false,
-      "utterance_id": "1348-135826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1348-135826.flac |",
-      "real_speaker_id": "1348",
-      "position_frames": 133103
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/666/cough/0032.wav",
-      "duration": 1.1759437711329654,
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-      "speaker_id": "666"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051702.json b/conversations/conv_051702.json
deleted file mode 100644
index 48defa8a1c9862f6281625d5b46d26a8416e6339..0000000000000000000000000000000000000000
--- a/conversations/conv_051702.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5401-39508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39508.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.1336215395124105,
-      "end_time": 13.281462124451043,
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-      "utterance_id": "4667-102196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-102196.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.847359379923947,
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-      "duration_frames": 93252,
-      "overlap": true,
-      "utterance_id": "5401-39515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39515.flac |",
-      "real_speaker_id": "5401",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 20.41383700135607,
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-      "utterance_id": "4667-92220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4667-92220.flac |",
-      "real_speaker_id": "4667",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "3114",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5401-39515.flac |",
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-      "position_frames": 93252
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 11.636603673644835,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4667/laugh/0119.wav",
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-      "start_time": 19.298902466451782,
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-      "event_class": "cough",
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-      "start_time": 24.3025726399824,
-      "speaker_id": "3114"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051705.json b/conversations/conv_051705.json
deleted file mode 100644
index 2387fc84abcc623ee3d076d867e8de3a9a92b6a6..0000000000000000000000000000000000000000
--- a/conversations/conv_051705.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.730956038774334,
-  "num_speakers": 3,
-  "overlap_rate": 0.6666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.998604660628393,
-      "duration": 4.998604660628393,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.309344780891637,
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
-      "real_speaker_id": "3895",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7383/laugh/0023.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051713.json b/conversations/conv_051713.json
deleted file mode 100644
index bc0eb6cf4d6ffbb309c6f6126b947ac070634f8a..0000000000000000000000000000000000000000
--- a/conversations/conv_051713.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.369603769540472,
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-      "duration_frames": 69913,
-      "overlap": false,
-      "utterance_id": "2234-64139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64139.flac |",
-      "real_speaker_id": "2234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.225775545503146,
-      "end_time": 11.560592839937453,
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-      "duration_frames": 101357,
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-      "utterance_id": "3328-168626",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-168626.flac |",
-      "real_speaker_id": "3328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.259797912064634,
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-      "utterance_id": "2234-64139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64139.flac |",
-      "real_speaker_id": "2234",
-      "position_frames": 69913
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.200918613008874,
-      "end_time": 20.612678236162523,
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-      "overlap": false,
-      "utterance_id": "3328-166436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3328-166436.flac |",
-      "real_speaker_id": "3328",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.026819799853833,
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-      "utterance_id": "2234-64131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2234-64131.flac |",
-      "real_speaker_id": "2234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.56077525625708,
-      "end_time": 32.0,
-      "duration": 3.439224743742919,
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-      "duration_frames": 55027,
-      "overlap": false,
-      "utterance_id": "7925-116154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7925-116154.flac |",
-      "real_speaker_id": "7925",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/50114.wav",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051714.json b/conversations/conv_051714.json
deleted file mode 100644
index 1b6d5b079d1211b241d1adb82ecba71a925b549e..0000000000000000000000000000000000000000
--- a/conversations/conv_051714.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "7150-111618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-111618.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-118730.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.977778169149392,
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-      "utterance_id": "8573-286306",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8573-286306.flac |",
-      "real_speaker_id": "8573",
-      "position_frames": 111828
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.55176677953537,
-      "end_time": 32.0,
-      "duration": 6.44823322046463,
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-      "duration_frames": 103171,
-      "overlap": false,
-      "utterance_id": "7150-118731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-118731.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8573/laugh/0025.wav",
-      "duration": 0.759644650607589,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7150/laugh/0134.wav",
-      "duration": 1.64,
-      "start_time": 23.75750440611503,
-      "speaker_id": "7150"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051718.json b/conversations/conv_051718.json
deleted file mode 100644
index 4c04f8cf9cde95b1ff105984f3299fde0d216057..0000000000000000000000000000000000000000
--- a/conversations/conv_051718.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.026686861090166,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.077257373891666,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.629126292346319,
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-      "utterance_id": "6215-68888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-68888.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.276165115353717,
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-      "utterance_id": "5239-32139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 97236
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "5239-31629",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.183388980908493,
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-      "duration_frames": 61492,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-68888.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 76797
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "start_time": 0,
-      "speaker_id": "3540"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5239/laugh/0013.wav",
-      "duration": 0.5733320562446663,
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-}
\ No newline at end of file
diff --git a/conversations/conv_051722.json b/conversations/conv_051722.json
deleted file mode 100644
index daee84cd56d0b9b0baea47cd3a61bf541e6a3a7c..0000000000000000000000000000000000000000
--- a/conversations/conv_051722.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4196-23924",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23924.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.8613666033103,
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-      "utterance_id": "5750-100289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-100289.flac |",
-      "real_speaker_id": "5750",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-861.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5750-100289.flac |",
-      "real_speaker_id": "5750",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/329-861.flac |",
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-  "foreground_events": [
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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\ No newline at end of file
diff --git a/conversations/conv_051734.json b/conversations/conv_051734.json
deleted file mode 100644
index 631b33d234c452a4abdf0f00b8232f2adef69161..0000000000000000000000000000000000000000
--- a/conversations/conv_051734.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.408501884910926,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-32139.flac |",
-      "real_speaker_id": "5239",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4396-14564.flac |",
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-      "position_frames": 82113
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5189-59288.flac |",
-      "real_speaker_id": "5189",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5239-31629.flac |",
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-  "foreground_events": [
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-      "start_time": 30.9,
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-}
\ No newline at end of file
diff --git a/conversations/conv_051738.json b/conversations/conv_051738.json
deleted file mode 100644
index c3d9dfa9bb8be2c4b30136a6e2f73cbc0ced11c4..0000000000000000000000000000000000000000
--- a/conversations/conv_051738.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "408",
-      "position_frames": 92480
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134830.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 96664
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051743.json b/conversations/conv_051743.json
deleted file mode 100644
index fb4328f0501120e44460d47a2c65c68097645c25..0000000000000000000000000000000000000000
--- a/conversations/conv_051743.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.372445007475026,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1335-163935",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1335-163935.flac |",
-      "real_speaker_id": "1335",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_051744.json b/conversations/conv_051744.json
deleted file mode 100644
index 5c446b495861efed6f85de408710382f70ade9a4..0000000000000000000000000000000000000000
--- a/conversations/conv_051744.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "753",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-32846.flac |",
-      "real_speaker_id": "753",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "start_time": 21.32133294752525,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/753/cough/0005.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051752.json b/conversations/conv_051752.json
deleted file mode 100644
index b525e7f5069490341cb256787c1cb54619190ae6..0000000000000000000000000000000000000000
--- a/conversations/conv_051752.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.48051766052912,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.8474564144079135,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
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-      "utterance_id": "1485-139314",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-139314.flac |",
-      "real_speaker_id": "1485",
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "6747-76145",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76145.flac |",
-      "real_speaker_id": "6747",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.774855320641286,
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-      "utterance_id": "1485-121385",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-121385.flac |",
-      "real_speaker_id": "1485",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "6747-76101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6747-76101.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_051755.json b/conversations/conv_051755.json
deleted file mode 100644
index 70c7ad35ab239830de037adfa873fef6c32400b7..0000000000000000000000000000000000000000
--- a/conversations/conv_051755.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5561-39621.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1989-26962.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4010-10801.flac |",
-      "real_speaker_id": "4010",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1989-26962.flac |",
-      "real_speaker_id": "1989",
-      "position_frames": 87791
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "5561",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "position_frames": 75524
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "duration": 1.2,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051759.json b/conversations/conv_051759.json
deleted file mode 100644
index 369b825809750c33a20a25f836cae74ac9945f7e..0000000000000000000000000000000000000000
--- a/conversations/conv_051759.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5985-300225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5985-300225.flac |",
-      "real_speaker_id": "5985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8867-294715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8867-294715.flac |",
-      "real_speaker_id": "8867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8747-293952.flac |",
-      "real_speaker_id": "8747",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8747",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "real_speaker_id": "5985",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-      "duration": 3.1692517025874025,
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-}
\ No newline at end of file
diff --git a/conversations/conv_051763.json b/conversations/conv_051763.json
deleted file mode 100644
index 5e767bed2f4a09da121eff8b5a3bed57f8a19f07..0000000000000000000000000000000000000000
--- a/conversations/conv_051763.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.07658215784221,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "915-163370",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163370.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.568151547593573,
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-      "real_speaker_id": "7297",
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "915",
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\ No newline at end of file
diff --git a/conversations/conv_051775.json b/conversations/conv_051775.json
deleted file mode 100644
index 2299ca9e13bf89e5e22b2aa64b0dc87f40852fd8..0000000000000000000000000000000000000000
--- a/conversations/conv_051775.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2588-160947.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142913.flac |",
-      "real_speaker_id": "1743",
-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_051778.json b/conversations/conv_051778.json
deleted file mode 100644
index 3baffc12de98df2eddfe9493756eac09398d1dac..0000000000000000000000000000000000000000
--- a/conversations/conv_051778.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_051779.json b/conversations/conv_051779.json
deleted file mode 100644
index 5aba0e9144ce527ccebbf35a44a6a53d7b902814..0000000000000000000000000000000000000000
--- a/conversations/conv_051779.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
-      "real_speaker_id": "7764",
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\ No newline at end of file
diff --git a/conversations/conv_051780.json b/conversations/conv_051780.json
deleted file mode 100644
index 2932612f584432721ad547d8618ee53e70fab0ec..0000000000000000000000000000000000000000
--- a/conversations/conv_051780.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7147-80028.flac |",
-      "real_speaker_id": "7147",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "5606",
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\ No newline at end of file
diff --git a/conversations/conv_051796.json b/conversations/conv_051796.json
deleted file mode 100644
index c881017f54308caeebaa9d1a2e891b1bee6c04e4..0000000000000000000000000000000000000000
--- a/conversations/conv_051796.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5746-48362.flac |",
-      "real_speaker_id": "5746",
-      "position_frames": 54361
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121408.flac |",
-      "real_speaker_id": "1646",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_051797.json b/conversations/conv_051797.json
deleted file mode 100644
index 106dbaf48239210860d8712173c3ce51dfc508c3..0000000000000000000000000000000000000000
--- a/conversations/conv_051797.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120282.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64264.flac |",
-      "real_speaker_id": "6689",
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-      "real_speaker_id": "4443",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051807.json b/conversations/conv_051807.json
deleted file mode 100644
index 5f044a14364b9e9e4a8e7048b79caaf9ccb79ae1..0000000000000000000000000000000000000000
--- a/conversations/conv_051807.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "2494-156017",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2494-156017.flac |",
-      "real_speaker_id": "2494",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.078980653625546,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300343.flac |",
-      "real_speaker_id": "8879",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3105-163726.flac |",
-      "real_speaker_id": "3105",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8879-300343.flac |",
-      "real_speaker_id": "8879",
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-      "real_speaker_id": "8879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_051811.json b/conversations/conv_051811.json
deleted file mode 100644
index 7798e69e71fae68ad60baf5390a97ed4d9631a1a..0000000000000000000000000000000000000000
--- a/conversations/conv_051811.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27768.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0005",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8072/laugh/0005.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051827.json b/conversations/conv_051827.json
deleted file mode 100644
index ab4f5f81df95752daf5eee3fe76086d4f5d0016c..0000000000000000000000000000000000000000
--- a/conversations/conv_051827.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "4273-188161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188161.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
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-      "utterance_id": "2517-135229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135229.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3781-156977.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2517-135227.flac |",
-      "real_speaker_id": "2517",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3781-156977.flac |",
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-      "event_class": "Alarm_bell_ringing",
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-      "speaker_id": "3781"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051831.json b/conversations/conv_051831.json
deleted file mode 100644
index 8046a885b50de99c99a239ec4240aa0581739a81..0000000000000000000000000000000000000000
--- a/conversations/conv_051831.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-123197.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271812.flac |",
-      "real_speaker_id": "8008",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-48377.flac |",
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-      "real_speaker_id": "8008",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-29101.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8008-271811",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8008-271811.flac |",
-      "real_speaker_id": "8008",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_051846.json b/conversations/conv_051846.json
deleted file mode 100644
index 997198abbfea9915452379ddcc5b4d58cfa7a1ae..0000000000000000000000000000000000000000
--- a/conversations/conv_051846.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.18871477311857,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204974.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-94108.flac |",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-101864.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 31.101105364434122,
-      "speaker_id": "7247"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051847.json b/conversations/conv_051847.json
deleted file mode 100644
index 6e4b10ac51ff0f3efdefe9a6fbeab05c6f0e269b..0000000000000000000000000000000000000000
--- a/conversations/conv_051847.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.186999758246426,
-  "num_speakers": 2,
-  "overlap_rate": 0.6666666666666666,
-  "segments": [
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-      "utterance_id": "8718-295445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295445.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
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-      "start_time": 5.77084600573232,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4179-25937.flac |",
-      "real_speaker_id": "4179",
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-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.18708305216147,
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-      "overlap": true,
-      "utterance_id": "4179-25937",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4179-25937.flac |",
-      "real_speaker_id": "4179",
-      "position_frames": 96439
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.097798705316023,
-      "end_time": 29.193712995890237,
-      "duration": 5.095914290574212,
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-      "duration_frames": 81534,
-      "overlap": true,
-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.154800573209997,
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-      "duration": 1.0321991850364292,
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-      "duration_frames": 16515,
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-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 87841
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-    {
-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_051850.json b/conversations/conv_051850.json
deleted file mode 100644
index 9858a23f46a727bfbaf841e65a0e3173445c6fc5..0000000000000000000000000000000000000000
--- a/conversations/conv_051850.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1638-84447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84447.flac |",
-      "real_speaker_id": "1638",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138113.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84447.flac |",
-      "real_speaker_id": "1638",
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-      "segment_id": "seg0003",
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-      "start_time": 21.046855079889642,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-12876.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.872464727205926,
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-      "utterance_id": "1336-138113",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138113.flac |",
-      "real_speaker_id": "1336",
-      "position_frames": 89637
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.331796599865577,
-      "end_time": 32.0,
-      "duration": 0.6682034001344235,
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-      "overlap": false,
-      "utterance_id": "1638-84447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1638-84447.flac |",
-      "real_speaker_id": "1638",
-      "position_frames": 206796
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-    {
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-    {
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-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 30.261077044003446,
-      "speaker_id": "1638"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051857.json b/conversations/conv_051857.json
deleted file mode 100644
index b62aae88ff092ee1201fb21690ac26325515c976..0000000000000000000000000000000000000000
--- a/conversations/conv_051857.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.663993955060488,
-      "duration": 5.663993955060488,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3368-170950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170950.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.449304032565333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130533.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3368-170952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170952.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.358150884591495,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-366.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170950.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 90623
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.841940788365697,
-      "end_time": 32.0,
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-      "duration_frames": 50528,
-      "overlap": false,
-      "utterance_id": "731-365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/731-365.flac |",
-      "real_speaker_id": "731",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/731/laugh/0063.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/731/laugh/0045.wav",
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-      "start_time": 27.10406839663737,
-      "speaker_id": "731"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051866.json b/conversations/conv_051866.json
deleted file mode 100644
index badc950ae47bced8ae90008c9292d6eae4730e12..0000000000000000000000000000000000000000
--- a/conversations/conv_051866.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.356567693440294,
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-      "utterance_id": "8753-297969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297969.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4358",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-44937.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8753-297942.flac |",
-      "real_speaker_id": "8753",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-44937.flac |",
-      "real_speaker_id": "4358",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4358-44937.flac |",
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-  "background_events": [],
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-      "speaker_id": "4358"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051870.json b/conversations/conv_051870.json
deleted file mode 100644
index 949ca0a9cc0790a01551e0fd9a24bc06506f6528..0000000000000000000000000000000000000000
--- a/conversations/conv_051870.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.697481201238524,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2979-156237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156237.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27767.flac |",
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-      "utterance_id": "2979-156236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156236.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.150437107873945,
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-      "overlap": false,
-      "utterance_id": "4965-27768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4965-27768.flac |",
-      "real_speaker_id": "4965",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.43793659240538,
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-      "utterance_id": "3641-6870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-6870.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.466520730418445,
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-      "overlap": false,
-      "utterance_id": "3641-134615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3641-134615.flac |",
-      "real_speaker_id": "3641",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051882.json b/conversations/conv_051882.json
deleted file mode 100644
index b07e6f51156091893c7ea8ee91b9b79decfd20bd..0000000000000000000000000000000000000000
--- a/conversations/conv_051882.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2823-160953",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160953.flac |",
-      "real_speaker_id": "2823",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11533.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160964.flac |",
-      "real_speaker_id": "2823",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4110-11533.flac |",
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-      "real_speaker_id": "1006",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2823-160953.flac |",
-      "real_speaker_id": "2823",
-      "position_frames": 72454
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.08,
-      "start_time": 30.92,
-      "speaker_id": "2823"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051885.json b/conversations/conv_051885.json
deleted file mode 100644
index ec2f2a3bd26a0df831fe5cd998eb989e4450603b..0000000000000000000000000000000000000000
--- a/conversations/conv_051885.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "551-129024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
-      "real_speaker_id": "551",
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-      "real_speaker_id": "3664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1414-130538",
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-      "real_speaker_id": "1414",
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-    {
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-      "real_speaker_id": "551",
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-    {
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-      "real_speaker_id": "3664",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "real_speaker_id": "551",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-    {
-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3664/cough/0102.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051889.json b/conversations/conv_051889.json
deleted file mode 100644
index 331bbe6628ef87302725903c10dc2c5fd62eae40..0000000000000000000000000000000000000000
--- a/conversations/conv_051889.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/979-128677.flac |",
-      "real_speaker_id": "979",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/979-128669.flac |",
-      "real_speaker_id": "979",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2522-147156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051893.json b/conversations/conv_051893.json
deleted file mode 100644
index 722fd3165e9908ac46a62343e61e418a9bed9f0e..0000000000000000000000000000000000000000
--- a/conversations/conv_051893.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7754-105383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7754-105383.flac |",
-      "real_speaker_id": "7754",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5355-35477.flac |",
-      "real_speaker_id": "5355",
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-      "segment_id": "seg0005",
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-      "position_frames": 84830
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051894.json b/conversations/conv_051894.json
deleted file mode 100644
index 2a044a9ec109641e61783f8199358dc82461d6cf..0000000000000000000000000000000000000000
--- a/conversations/conv_051894.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_051902.json b/conversations/conv_051902.json
deleted file mode 100644
index 01b27b49c879c621296e4284356e14d9e0860fc5..0000000000000000000000000000000000000000
--- a/conversations/conv_051902.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "speaker_id": "1693"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7649/laugh/0125.wav",
-      "duration": 1.36,
-      "start_time": 29.78745584673663,
-      "speaker_id": "7649"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051903.json b/conversations/conv_051903.json
deleted file mode 100644
index 9d5eb590db53135659855ef2b874da899a0137b1..0000000000000000000000000000000000000000
--- a/conversations/conv_051903.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.577095810515644,
-      "duration": 5.577095810515644,
-      "start_frame": 0,
-      "duration_frames": 89233,
-      "overlap": false,
-      "utterance_id": "4872-20426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20426.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.841756910892492,
-      "end_time": 10.53639095997717,
-      "duration": 4.694634049084678,
-      "start_frame": 93468,
-      "duration_frames": 75114,
-      "overlap": false,
-      "utterance_id": "2374-160960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-160960.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.345218632879925,
-      "end_time": 15.339798580944803,
-      "duration": 3.994579948064878,
-      "start_frame": 181523,
-      "duration_frames": 63913,
-      "overlap": false,
-      "utterance_id": "4872-20426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20426.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 89233
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.990183979298308,
-      "end_time": 20.156182418101093,
-      "duration": 4.165998438802784,
-      "start_frame": 255842,
-      "duration_frames": 66655,
-      "overlap": false,
-      "utterance_id": "2374-155651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.598601422230995,
-      "end_time": 26.30643059324802,
-      "duration": 5.707829171017026,
-      "start_frame": 329577,
-      "duration_frames": 91325,
-      "overlap": false,
-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.052682418288455,
-      "end_time": 31.293821406479378,
-      "duration": 4.241138988190923,
-      "start_frame": 432842,
-      "duration_frames": 67858,
-      "overlap": false,
-      "utterance_id": "2374-155651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 66655
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.59069891208632,
-      "end_time": 32.0,
-      "duration": 0.40930108791367914,
-      "start_frame": 505451,
-      "duration_frames": 6548,
-      "overlap": false,
-      "utterance_id": "4872-20425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20425.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 1.3829063675798818,
-      "start_time": 28.633218538654372
-    },
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
-      "duration": 1.2901400048339804,
-      "start_time": 8.29879492267371
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4872/laugh/0045.wav",
-      "duration": 1.56,
-      "start_time": 0,
-      "speaker_id": "4872"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4872/cough/0046.wav",
-      "duration": 0.7212371490467715,
-      "start_time": 0,
-      "speaker_id": "4872"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2374/laugh/0066.wav",
-      "duration": 0.5288193572144155,
-      "start_time": 5.252653450246603,
-      "speaker_id": "2374"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4872/laugh/0109.wav",
-      "duration": 0.9195201563247695,
-      "start_time": 10.234491806527778,
-      "speaker_id": "4872"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4872/cough/0099.wav",
-      "duration": 1.4145607076996973,
-      "start_time": 15.5380146191965,
-      "speaker_id": "4872"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2374/laugh/0076.wav",
-      "duration": 0.96,
-      "start_time": 14.991242809462422,
-      "speaker_id": "2374"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2570/laugh/0017.wav",
-      "duration": 1.1226925440525384,
-      "start_time": 19.22951493190322,
-      "speaker_id": "2570"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2374/laugh/0092.wav",
-      "duration": 1.14,
-      "start_time": 25.767285197649265,
-      "speaker_id": "2374"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051912.json b/conversations/conv_051912.json
deleted file mode 100644
index fb030e46f2553e69a37283a73eb5620003294e21..0000000000000000000000000000000000000000
--- a/conversations/conv_051912.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.688230573698068,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.641088445086624,
-      "duration": 4.641088445086624,
-      "start_frame": 0,
-      "duration_frames": 74257,
-      "overlap": false,
-      "utterance_id": "3245-62827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-62827.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.387002283873404,
-      "end_time": 11.328626970176824,
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-      "overlap": false,
-      "utterance_id": "8337-284523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-284523.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.153217545584878,
-      "end_time": 17.0945207270283,
-      "duration": 4.9413031814434225,
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-      "duration_frames": 79060,
-      "overlap": false,
-      "utterance_id": "7096-80685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7096-80685.flac |",
-      "real_speaker_id": "7096",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.355480817966964,
-      "end_time": 21.30277507535141,
-      "duration": 3.9472942573844447,
-      "start_frame": 277687,
-      "duration_frames": 63156,
-      "overlap": false,
-      "utterance_id": "3245-62827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-62827.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 74257
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.256514026160545,
-      "end_time": 28.82789053923294,
-      "duration": 6.571376513072394,
-      "start_frame": 356104,
-      "duration_frames": 105142,
-      "overlap": false,
-      "utterance_id": "8337-283569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-283569.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.35350081332303,
-      "end_time": 31.688230573698068,
-      "duration": 2.334729760375037,
-      "start_frame": 469656,
-      "duration_frames": 37355,
-      "overlap": true,
-      "utterance_id": "3245-6194",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-6194.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
-      "start_time": 11.681031433066256
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
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-      "start_time": 10.1717887631874
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
-      "duration": 2.416783542757169,
-      "start_time": 13.61963063405012
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3245/laugh/0011.wav",
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-      "start_time": 16.551888757318686,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3245/cough/0067.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8337/cough/0126.wav",
-      "duration": 0.9052522797749643,
-      "start_time": 28.84001160330633,
-      "speaker_id": "8337"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051915.json b/conversations/conv_051915.json
deleted file mode 100644
index 2493fb93eb33f80e6f2d29ff7623cc56be549b4d..0000000000000000000000000000000000000000
--- a/conversations/conv_051915.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 80407,
-      "overlap": false,
-      "utterance_id": "5513-39477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39477.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.761397017177895,
-      "end_time": 8.324000846328104,
-      "duration": 3.5626038291502082,
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-      "duration_frames": 57001,
-      "overlap": true,
-      "utterance_id": "1069-133699",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1069-133699.flac |",
-      "real_speaker_id": "1069",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.941575281279142,
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-      "duration_frames": 89722,
-      "overlap": false,
-      "utterance_id": "5513-39476",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39476.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.303917629280583,
-      "end_time": 22.399025478163523,
-      "duration": 6.0951078488829395,
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-      "duration_frames": 97521,
-      "overlap": false,
-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.961050704999693,
-      "end_time": 27.598725229550535,
-      "duration": 4.637674524550842,
-      "start_frame": 367376,
-      "duration_frames": 74202,
-      "overlap": true,
-      "utterance_id": "5513-39476",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5513-39476.flac |",
-      "real_speaker_id": "5513",
-      "position_frames": 89722
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.412974772671127,
-      "end_time": 32.0,
-      "duration": 3.5870252273288727,
-      "start_frame": 454607,
-      "duration_frames": 57392,
-      "overlap": false,
-      "utterance_id": "3230-137483",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 97521
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
-      "duration": 0.9008616780045351,
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1069/cough/0014.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5513/laugh/0046.wav",
-      "duration": 1.24,
-      "start_time": 21.64424102451747,
-      "speaker_id": "5513"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051919.json b/conversations/conv_051919.json
deleted file mode 100644
index e3bffdc94a19ae3812087ad7020134e77d1f5267..0000000000000000000000000000000000000000
--- a/conversations/conv_051919.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.304525863531167,
-      "duration": 4.304525863531167,
-      "start_frame": 0,
-      "duration_frames": 68872,
-      "overlap": false,
-      "utterance_id": "4592-26872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-26872.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.792895253893046,
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-      "utterance_id": "4592-22178",
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-      "real_speaker_id": "4592",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 91910,
-      "overlap": true,
-      "utterance_id": "2013-147610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147610.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-26872.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 68872
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.910111966494235,
-      "end_time": 24.538429886444437,
-      "duration": 3.6283179199502014,
-      "start_frame": 334561,
-      "duration_frames": 58053,
-      "overlap": false,
-      "utterance_id": "2013-147609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2013-147609.flac |",
-      "real_speaker_id": "2013",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.412762624009567,
-      "end_time": 32.0,
-      "duration": 6.5872373759904335,
-      "start_frame": 406604,
-      "duration_frames": 105395,
-      "overlap": false,
-      "utterance_id": "4592-22179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4592-22179.flac |",
-      "real_speaker_id": "4592",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/331161.wav",
-      "duration": 3.323414937854352,
-      "start_time": 16.092018727623
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2013/laugh/0018.wav",
-      "duration": 1.12,
-      "start_time": 24.739354534067665,
-      "speaker_id": "2013"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051923.json b/conversations/conv_051923.json
deleted file mode 100644
index b3bb388012d29e1b815f0587a2fe79c134c9633f..0000000000000000000000000000000000000000
--- a/conversations/conv_051923.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.383566916483191,
-      "duration": 6.383566916483191,
-      "start_frame": 0,
-      "duration_frames": 102137,
-      "overlap": false,
-      "utterance_id": "225-131256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131256.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.768521508294395,
-      "end_time": 13.043116760125498,
-      "duration": 6.274595251831103,
-      "start_frame": 108296,
-      "duration_frames": 100393,
-      "overlap": false,
-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.37884550700408,
-      "end_time": 19.880920249066122,
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-      "duration_frames": 104033,
-      "overlap": false,
-      "utterance_id": "225-131276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131276.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 20.122247655664015,
-      "end_time": 25.49366214095091,
-      "duration": 5.371414485286897,
-      "start_frame": 321955,
-      "duration_frames": 85942,
-      "overlap": false,
-      "utterance_id": "225-131276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131276.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 104033
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.099876554336962,
-      "end_time": 30.719846505939476,
-      "duration": 4.619969951602514,
-      "start_frame": 417598,
-      "duration_frames": 73919,
-      "overlap": false,
-      "utterance_id": "8687-216570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8687-216570.flac |",
-      "real_speaker_id": "8687",
-      "position_frames": 100393
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.40967698682324,
-      "end_time": 32.0,
-      "duration": 0.5903230131767607,
-      "start_frame": 502554,
-      "duration_frames": 9445,
-      "overlap": false,
-      "utterance_id": "4222-187005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4222-187005.flac |",
-      "real_speaker_id": "4222",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 14.63,
-      "start_time": 9.120723023455211
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/225/laugh/0102.wav",
-      "duration": 1.28,
-      "start_time": 19.994984251923313,
-      "speaker_id": "225"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/225/cough/0108.wav",
-      "duration": 1.48,
-      "start_time": 18.620850099952904,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8687/laugh/0114.wav",
-      "duration": 1.08,
-      "start_time": 24.724174336533938,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4222/laugh/0017.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "4222"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051928.json b/conversations/conv_051928.json
deleted file mode 100644
index e78d3327d701868954b16d9733efe49d45660ecf..0000000000000000000000000000000000000000
--- a/conversations/conv_051928.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.322901980202094,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6652-70974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70974.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.4414626652174616,
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-      "overlap": false,
-      "utterance_id": "5935-55927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-55927.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.777168413557925,
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-      "overlap": false,
-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.257747927791359,
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-      "duration_frames": 66510,
-      "overlap": false,
-      "utterance_id": "6652-70974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6652-70974.flac |",
-      "real_speaker_id": "6652",
-      "position_frames": 53166
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.84162177679632,
-      "end_time": 23.55266059612523,
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-      "duration_frames": 75376,
-      "overlap": true,
-      "utterance_id": "5935-43322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-43322.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.808184793448845,
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-      "utterance_id": "7522-69612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7522-69612.flac |",
-      "real_speaker_id": "7522",
-      "position_frames": 74009
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.555769782940196,
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-      "duration": 2.444230217059804,
-      "start_frame": 472892,
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-      "utterance_id": "5935-55927",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5935-55927.flac |",
-      "real_speaker_id": "5935",
-      "position_frames": 76601
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_14.wav",
-      "duration": 1.5647845804988663,
-      "start_time": 10.083983661966824
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6652/laugh/0076.wav",
-      "duration": 1.4,
-      "start_time": 3.549262085783187,
-      "speaker_id": "6652"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051935.json b/conversations/conv_051935.json
deleted file mode 100644
index 24b07101ed5d19dda76a46bcffd20be166d645a5..0000000000000000000000000000000000000000
--- a/conversations/conv_051935.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.0490560098895823,
-      "duration": 3.0490560098895823,
-      "start_frame": 0,
-      "duration_frames": 48784,
-      "overlap": false,
-      "utterance_id": "336-125876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125876.flac |",
-      "real_speaker_id": "336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8314435384378136,
-      "end_time": 7.980150736626538,
-      "duration": 4.148707198188724,
-      "start_frame": 61303,
-      "duration_frames": 66379,
-      "overlap": false,
-      "utterance_id": "8190-284435",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8190-284435.flac |",
-      "real_speaker_id": "8190",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.125462734751295,
-      "end_time": 12.923828682429242,
-      "duration": 4.798365947677946,
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-      "duration_frames": 76773,
-      "overlap": false,
-      "utterance_id": "336-125871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125871.flac |",
-      "real_speaker_id": "336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.321412692780765,
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-      "start_frame": 213142,
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-      "overlap": false,
-      "utterance_id": "8527-281131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.304965657007553,
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-      "duration_frames": 94296,
-      "overlap": false,
-      "utterance_id": "336-125874",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/336-125874.flac |",
-      "real_speaker_id": "336",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.473778816521495,
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-      "duration": 4.461671534858624,
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-      "duration_frames": 71386,
-      "overlap": false,
-      "utterance_id": "8527-281132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281132.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.450112432503005,
-      "end_time": 32.0,
-      "duration": 1.5498875674969952,
-      "start_frame": 487201,
-      "duration_frames": 24798,
-      "overlap": false,
-      "utterance_id": "8527-281131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8527-281131.flac |",
-      "real_speaker_id": "8527",
-      "position_frames": 87472
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-      "start_time": 2.2940217678953694
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_8.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_0.wav",
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-      "start_time": 13.38201257781752
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/336/laugh/0016.wav",
-      "duration": 0.6935497016104717,
-      "start_time": 0,
-      "speaker_id": "336"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8190/cough/0012.wav",
-      "duration": 0.8495910151520365,
-      "start_time": 8.109910856670878,
-      "speaker_id": "8190"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8527/cough/0073.wav",
-      "duration": 0.7398772157432172,
-      "start_time": 31.260122784256783,
-      "speaker_id": "8527"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051939.json b/conversations/conv_051939.json
deleted file mode 100644
index d9e9b76106ee2a1707c56ed380d338cb0083fff3..0000000000000000000000000000000000000000
--- a/conversations/conv_051939.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.790159926668316,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.4155672537126565,
-      "duration": 5.4155672537126565,
-      "start_frame": 0,
-      "duration_frames": 86649,
-      "overlap": false,
-      "utterance_id": "51-121055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/51-121055.flac |",
-      "real_speaker_id": "51",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.950631820657208,
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-      "duration": 5.263329883995701,
-      "start_frame": 95210,
-      "duration_frames": 84213,
-      "overlap": false,
-      "utterance_id": "51-121055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/51-121055.flac |",
-      "real_speaker_id": "51",
-      "position_frames": 86649
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.672430400947821,
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-      "duration": 5.630522799147482,
-      "start_frame": 170758,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 18.429844992802344,
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-      "utterance_id": "51-121055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/51-121055.flac |",
-      "real_speaker_id": "51",
-      "position_frames": 170862
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1040-133433.flac |",
-      "real_speaker_id": "1040",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/51-121055.flac |",
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-      "position_frames": 245114
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "1040"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051942.json b/conversations/conv_051942.json
deleted file mode 100644
index 507873fa03d3b22b85a25560b6595e0b95d88668..0000000000000000000000000000000000000000
--- a/conversations/conv_051942.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.64579315597506,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.598424711556881,
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-      "utterance_id": "5245-3984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5245-3984.flac |",
-      "real_speaker_id": "5245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.369014316300517,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5245-3984.flac |",
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-      "speaker_id": 1,
-      "start_time": 11.246085810189225,
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-      "utterance_id": "4856-20410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4856-20410.flac |",
-      "real_speaker_id": "4856",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.602700952075601,
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-      "duration_frames": 69185,
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-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.634274330271655,
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-      "duration_frames": 71611,
-      "overlap": false,
-      "utterance_id": "4856-20410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4856-20410.flac |",
-      "real_speaker_id": "4856",
-      "position_frames": 70317
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.50958470615403,
-      "end_time": 30.64579315597506,
-      "duration": 4.136208449821031,
-      "start_frame": 424153,
-      "duration_frames": 66179,
-      "overlap": false,
-      "utterance_id": "5245-3984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5245-3984.flac |",
-      "real_speaker_id": "5245",
-      "position_frames": 166235
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.0598770256399295,
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-      "event_class": "cough",
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-      "speaker_id": "5245"
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-}
\ No newline at end of file
diff --git a/conversations/conv_051954.json b/conversations/conv_051954.json
deleted file mode 100644
index c0678d567fb8e52c01a0d5f46c0978c0c85efb5c..0000000000000000000000000000000000000000
--- a/conversations/conv_051954.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.780725036359083,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "225-131259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131259.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.3793556004472265,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/811-130148.flac |",
-      "real_speaker_id": "811",
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-      "utterance_id": "8246-107993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.931326703687105,
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-      "utterance_id": "225-131276",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131276.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8246-107993.flac |",
-      "real_speaker_id": "8246",
-      "position_frames": 76833
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "225-131256",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/225-131256.flac |",
-      "real_speaker_id": "225",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "event_class": "Cat",
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-    {
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8246/cough/0056.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "8246"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051955.json b/conversations/conv_051955.json
deleted file mode 100644
index c96dfe81a0c1eb785406a717051e41a0177531a5..0000000000000000000000000000000000000000
--- a/conversations/conv_051955.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.6607800328864695,
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-      "start_frame": 0,
-      "duration_frames": 106572,
-      "overlap": false,
-      "utterance_id": "1291-138096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138096.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.158929003829329,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "2909-81524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-81524.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.17449962457455,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7318-96168.flac |",
-      "real_speaker_id": "7318",
-      "position_frames": 63857
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138109.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.013728948947836,
-      "end_time": 32.0,
-      "duration": 1.9862710510521637,
-      "start_frame": 480219,
-      "duration_frames": 31780,
-      "overlap": false,
-      "utterance_id": "1291-138109",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1291-138109.flac |",
-      "real_speaker_id": "1291",
-      "position_frames": 83146
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_20.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "2909"
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-    {
-      "event_class": "cough",
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-      "start_time": 13.262291170472743,
-      "speaker_id": "2909"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7318/laugh/0037.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1291/cough/0066.wav",
-      "duration": 1.3361027024204613,
-      "start_time": 24.32560405354414,
-      "speaker_id": "1291"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051958.json b/conversations/conv_051958.json
deleted file mode 100644
index ed2ea0cc4ee0c1ca4f814f565fbff9c1524d3a11..0000000000000000000000000000000000000000
--- a/conversations/conv_051958.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "3588-180957",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-180957.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "8382-294774",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8382-294774.flac |",
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_051962.json b/conversations/conv_051962.json
deleted file mode 100644
index 44978a16eb6898169f877711356a2afe11cb6f00..0000000000000000000000000000000000000000
--- a/conversations/conv_051962.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2411-132532.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_051969.json b/conversations/conv_051969.json
deleted file mode 100644
index 9d36e0f86eaea7ff83b0c88a01aa1364f788f429..0000000000000000000000000000000000000000
--- a/conversations/conv_051969.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_051974.json b/conversations/conv_051974.json
deleted file mode 100644
index 67b5695bd269fea2a22f7b2c143b37a95b2bc7b0..0000000000000000000000000000000000000000
--- a/conversations/conv_051974.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_051978.json b/conversations/conv_051978.json
deleted file mode 100644
index 8a8a74647076b23a9307029f129f20713518dcb7..0000000000000000000000000000000000000000
--- a/conversations/conv_051978.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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-      "real_speaker_id": "5791",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
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-}
\ No newline at end of file
diff --git a/conversations/conv_051981.json b/conversations/conv_051981.json
deleted file mode 100644
index 261a69e64921baf955067b73c025dc3a4d5a7fdc..0000000000000000000000000000000000000000
--- a/conversations/conv_051981.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-160867.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2140-160867",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-160867.flac |",
-      "real_speaker_id": "2140",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2140-17255.flac |",
-      "real_speaker_id": "2140",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
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\ No newline at end of file
diff --git a/conversations/conv_051986.json b/conversations/conv_051986.json
deleted file mode 100644
index 317d4b93e9f08e4517d0cf999665ca93e7c8619c..0000000000000000000000000000000000000000
--- a/conversations/conv_051986.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
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-      "real_speaker_id": "6181",
-      "position_frames": 161337
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "2237",
-      "position_frames": 128166
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6181-216552.flac |",
-      "real_speaker_id": "6181",
-      "position_frames": 240261
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/266610_1.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_051990.json b/conversations/conv_051990.json
deleted file mode 100644
index 14ad206457337d21e89b3203005ee99c0ab5da4a..0000000000000000000000000000000000000000
--- a/conversations/conv_051990.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.87023368757752,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7069-246893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7069-246893.flac |",
-      "real_speaker_id": "7069",
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-      "utterance_id": "7069-246889",
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-      "real_speaker_id": "7069",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7892-294520",
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-      "real_speaker_id": "7892",
-      "position_frames": 0
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-  "background_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_051997.json b/conversations/conv_051997.json
deleted file mode 100644
index 75119ef45740810d3b2c1e7dd01683d303b19d9f..0000000000000000000000000000000000000000
--- a/conversations/conv_051997.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "foreground_events": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_052006.json b/conversations/conv_052006.json
deleted file mode 100644
index 3250a83e3f13cd005c43c23ed57c4ac9fb6c6af3..0000000000000000000000000000000000000000
--- a/conversations/conv_052006.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26660.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_052010.json b/conversations/conv_052010.json
deleted file mode 100644
index 4dd29a0f92547bf30df5cb8045dba37f8794b381..0000000000000000000000000000000000000000
--- a/conversations/conv_052010.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.224725972110736,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
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-      "utterance_id": "6407-66983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6407-66983.flac |",
-      "real_speaker_id": "6407",
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.81999706105511,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-25901.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052011.json b/conversations/conv_052011.json
deleted file mode 100644
index 84789fcfb0a64e6ea164cd4c1eb6038840b8b563..0000000000000000000000000000000000000000
--- a/conversations/conv_052011.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "7140-72212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72212.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.682455761199035,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121742.flac |",
-      "real_speaker_id": "57",
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.883704504472336,
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "8113-301694",
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-      "position_frames": 158629
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-    {
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_052026.json b/conversations/conv_052026.json
deleted file mode 100644
index 6f367f5e54c2891c260de011fbdf24d1717c8765..0000000000000000000000000000000000000000
--- a/conversations/conv_052026.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.693634276059049,
-      "duration": 5.693634276059049,
-      "start_frame": 0,
-      "duration_frames": 91098,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.322812921868133,
-      "end_time": 9.671221509434222,
-      "duration": 3.3484085875660887,
-      "start_frame": 101165,
-      "duration_frames": 53574,
-      "overlap": true,
-      "utterance_id": "2194-141235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141235.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.758078402841523,
-      "end_time": 16.662051627181967,
-      "duration": 5.903973224340443,
-      "start_frame": 172129,
-      "duration_frames": 94463,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 91098
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.020254721053536,
-      "end_time": 21.30693305785345,
-      "duration": 4.286678336799913,
-      "start_frame": 272324,
-      "duration_frames": 68586,
-      "overlap": false,
-      "utterance_id": "2194-150469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-150469.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.429292332016722,
-      "end_time": 26.407923971616345,
-      "duration": 3.9786316395996226,
-      "start_frame": 358868,
-      "duration_frames": 63658,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 185561
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.656398241173747,
-      "end_time": 32.0,
-      "duration": 5.343601758826253,
-      "start_frame": 426502,
-      "duration_frames": 85497,
-      "overlap": false,
-      "utterance_id": "2194-141248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2194-141248.flac |",
-      "real_speaker_id": "2194",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/laugh/0025.wav",
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-      "speaker_id": "7263"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/cough/0034.wav",
-      "duration": 0.7867423385686951,
-      "start_time": 3.90005526910458,
-      "speaker_id": "7263"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2194/laugh/0019.wav",
-      "duration": 0.7896366873039655,
-      "start_time": 9.8023821316239,
-      "speaker_id": "2194"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7263/laugh/0003.wav",
-      "duration": 1.0080041084906146,
-      "start_time": 9.620939704687293,
-      "speaker_id": "7263"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052030.json b/conversations/conv_052030.json
deleted file mode 100644
index ea3b4b5123705ffafb2f1f0521f0d0b5010fc69f..0000000000000000000000000000000000000000
--- a/conversations/conv_052030.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.740461465279595,
-      "duration": 5.740461465279595,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5233-39051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-39051.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.247321788364363,
-      "end_time": 12.061682172825769,
-      "duration": 6.814360384461407,
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-      "overlap": true,
-      "utterance_id": "3221-9174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-9174.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.38161073114381,
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-      "duration_frames": 71667,
-      "overlap": false,
-      "utterance_id": "4959-28865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.535950899685506,
-      "end_time": 23.50104316195264,
-      "duration": 4.965092262267135,
-      "start_frame": 296575,
-      "duration_frames": 79441,
-      "overlap": false,
-      "utterance_id": "4959-28865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 71667
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.83147059192931,
-      "end_time": 28.410485257380603,
-      "duration": 4.579014665451293,
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-      "overlap": false,
-      "utterance_id": "5233-28389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28389.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.30995978068952,
-      "end_time": 32.0,
-      "duration": 2.690040219310479,
-      "start_frame": 468959,
-      "duration_frames": 43040,
-      "overlap": false,
-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
-      "real_speaker_id": "3221",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352270.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4959/cough/0035.wav",
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-      "start_time": 17.623453269084166,
-      "speaker_id": "4959"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052046.json b/conversations/conv_052046.json
deleted file mode 100644
index 5b2b1092e5ceb1d26fa7b4893cf48dae2aaf9e40..0000000000000000000000000000000000000000
--- a/conversations/conv_052046.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.993913936690134,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "497-125118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
-      "real_speaker_id": "497",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.341388443434298,
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-      "utterance_id": "7197-66278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66278.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "1777-142745",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142745.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.960582454876524,
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-      "utterance_id": "7197-66277",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66277.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/497-125118.flac |",
-      "real_speaker_id": "497",
-      "position_frames": 50482
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7197-66278",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7197-66278.flac |",
-      "real_speaker_id": "7197",
-      "position_frames": 94513
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.415014754362096,
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7197/laugh/0081.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7197/laugh/0004.wav",
-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "7197"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7197/cough/0010.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052047.json b/conversations/conv_052047.json
deleted file mode 100644
index 1651feb2124d6b93d66e96cb8de42e824ddfff13..0000000000000000000000000000000000000000
--- a/conversations/conv_052047.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.605853935838624,
-      "duration": 3.605853935838624,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1715-142315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1715-142315.flac |",
-      "real_speaker_id": "1715",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.211100657361873,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.355645676773658,
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-      "duration_frames": 94388,
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-      "utterance_id": "1801-138032",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1801-138032.flac |",
-      "real_speaker_id": "1801",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-      "speaker_id": "4442"
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-      "start_time": 23.520025650239816,
-      "speaker_id": "1715"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052051.json b/conversations/conv_052051.json
deleted file mode 100644
index d401cfd3c56f53ecff9ee9e79396f28ace61515c..0000000000000000000000000000000000000000
--- a/conversations/conv_052051.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.104289655061957,
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-      "overlap": false,
-      "utterance_id": "6324-64063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.65291925989926,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6324-64062",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64062.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.871676383964544,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6512-67886.flac |",
-      "real_speaker_id": "6512",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 104995
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.17150630312304,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6324-64063.flac |",
-      "real_speaker_id": "6324",
-      "position_frames": 65668
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_5.wav",
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-      "event_class": "laugh",
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-      "start_time": 19.45907295308994,
-      "speaker_id": "6512"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052067.json b/conversations/conv_052067.json
deleted file mode 100644
index e4e41ec1420216276101ba4fd17c3c0c28d6511a..0000000000000000000000000000000000000000
--- a/conversations/conv_052067.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.383232720205505,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155949.flac |",
-      "real_speaker_id": "3072",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-134827.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
-      "real_speaker_id": "3871",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "3072-155948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155948.flac |",
-      "real_speaker_id": "3072",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3871-692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3871-692.flac |",
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-  "foreground_events": [
-    {
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052071.json b/conversations/conv_052071.json
deleted file mode 100644
index 5a0c70120c34d87ca61a5574e2467dcd396a3304..0000000000000000000000000000000000000000
--- a/conversations/conv_052071.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_052083.json b/conversations/conv_052083.json
deleted file mode 100644
index 7c2706e2e8bbf8bc1cf4baa3bb9092434205dac1..0000000000000000000000000000000000000000
--- a/conversations/conv_052083.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": "7389"
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\ No newline at end of file
diff --git a/conversations/conv_052084.json b/conversations/conv_052084.json
deleted file mode 100644
index 04b0c44246663525b01022980b995936db99c7ef..0000000000000000000000000000000000000000
--- a/conversations/conv_052084.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "6784-76150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76150.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76152.flac |",
-      "real_speaker_id": "6784",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-142933.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 73751
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.28517040676238,
-      "end_time": 32.0,
-      "duration": 3.7148295932376207,
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-      "overlap": false,
-      "utterance_id": "6784-76150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6784-76150.flac |",
-      "real_speaker_id": "6784",
-      "position_frames": 98862
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "laugh",
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-      "start_time": 18.05122495038426,
-      "speaker_id": "6784"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_052085.json b/conversations/conv_052085.json
deleted file mode 100644
index e41ce80fb371212b6fb83c419f8a220bf42b525c..0000000000000000000000000000000000000000
--- a/conversations/conv_052085.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8421-283462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 0
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-      "real_speaker_id": "8421",
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-      "utterance_id": "83-3054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-3054.flac |",
-      "real_speaker_id": "83",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-9960.flac |",
-      "real_speaker_id": "83",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-9960.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 60067
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 27.571894347972744,
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-      "utterance_id": "83-9960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/83-9960.flac |",
-      "real_speaker_id": "83",
-      "position_frames": 163405
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-    {
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-      "duration": 1.08,
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-    {
-      "event_class": "cough",
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-      "speaker_id": "83"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052088.json b/conversations/conv_052088.json
deleted file mode 100644
index 902e4593d354e4df8c90d2f9019cdae6bcd39a15..0000000000000000000000000000000000000000
--- a/conversations/conv_052088.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138115.flac |",
-      "real_speaker_id": "1336",
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-    {
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-      "real_speaker_id": "8245",
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-      "speaker_id": 2,
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-      "real_speaker_id": "1336",
-      "position_frames": 80370
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "real_speaker_id": "6535",
-      "position_frames": 75265
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-  ],
-  "background_events": [
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-      "speaker_id": "6535"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052092.json b/conversations/conv_052092.json
deleted file mode 100644
index 9e60c069e55a28cf497807b2f3f34faecc12d270..0000000000000000000000000000000000000000
--- a/conversations/conv_052092.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.107809496817946,
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-      "overlap": false,
-      "utterance_id": "1473-135657",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1473-135657.flac |",
-      "real_speaker_id": "1473",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1473/laugh/0008.wav",
-      "duration": 1.0,
-      "start_time": 4.279199222439192,
-      "speaker_id": "1473"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1349/cough/0088.wav",
-      "duration": 1.12,
-      "start_time": 19.49618605040136,
-      "speaker_id": "1349"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1473/cough/0104.wav",
-      "duration": 1.24,
-      "start_time": 23.86766647552474,
-      "speaker_id": "1473"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052095.json b/conversations/conv_052095.json
deleted file mode 100644
index 1357bae8fae7f053b04a92d2fef19efab0dfda08..0000000000000000000000000000000000000000
--- a/conversations/conv_052095.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.866243320594557,
-      "duration": 5.866243320594557,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "844-133692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-133692.flac |",
-      "real_speaker_id": "844",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.030092814071167,
-      "end_time": 10.598867149351381,
-      "duration": 4.5687743352802155,
-      "start_frame": 96481,
-      "duration_frames": 73100,
-      "overlap": false,
-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.293243157634155,
-      "end_time": 17.829217492369352,
-      "duration": 6.535974334735199,
-      "start_frame": 180691,
-      "duration_frames": 104575,
-      "overlap": false,
-      "utterance_id": "6249-290631",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6249-290631.flac |",
-      "real_speaker_id": "6249",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.754568037685438,
-      "end_time": 23.67596454010696,
-      "duration": 4.9213965024215245,
-      "start_frame": 300073,
-      "duration_frames": 78742,
-      "overlap": false,
-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 73100
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.178677960107628,
-      "end_time": 28.720038991630634,
-      "duration": 4.541361031523006,
-      "start_frame": 386858,
-      "duration_frames": 72661,
-      "overlap": false,
-      "utterance_id": "844-133692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/844-133692.flac |",
-      "real_speaker_id": "844",
-      "position_frames": 93859
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.05777706085915,
-      "end_time": 32.0,
-      "duration": 2.9422229391408514,
-      "start_frame": 464924,
-      "duration_frames": 47075,
-      "overlap": false,
-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 151842
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/22627_1.wav",
-      "duration": 0.09517006802721088,
-      "start_time": 10.27886016614115
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_052102.json b/conversations/conv_052102.json
deleted file mode 100644
index 7b734d994b2924329eba33683502d140cc4cbe07..0000000000000000000000000000000000000000
--- a/conversations/conv_052102.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.564354191319577,
-      "duration": 4.564354191319577,
-      "start_frame": 0,
-      "duration_frames": 73029,
-      "overlap": false,
-      "utterance_id": "1097-136910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136910.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.734930442459369,
-      "end_time": 7.751744276426443,
-      "duration": 3.0168138339670745,
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-      "overlap": false,
-      "utterance_id": "4234-187735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-187735.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.229992215332203,
-      "end_time": 14.371653565138299,
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-      "overlap": false,
-      "utterance_id": "1097-136912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136912.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.188600908903576,
-      "end_time": 18.373340928646535,
-      "duration": 3.1847400197429585,
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-      "duration_frames": 50955,
-      "overlap": false,
-      "utterance_id": "572-126495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-126495.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.07256507023792,
-      "end_time": 24.53240155949024,
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-      "start_frame": 305161,
-      "duration_frames": 87357,
-      "overlap": false,
-      "utterance_id": "1097-136910",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136910.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 73029
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.67623139060972,
-      "end_time": 30.641433886902824,
-      "duration": 5.965202496293107,
-      "start_frame": 394819,
-      "duration_frames": 95443,
-      "overlap": false,
-      "utterance_id": "572-126495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-126495.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 50955
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.502121790462084,
-      "end_time": 32.0,
-      "duration": 0.49787820953791595,
-      "start_frame": 504033,
-      "duration_frames": 7966,
-      "overlap": false,
-      "utterance_id": "1097-136912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1097-136912.flac |",
-      "real_speaker_id": "1097",
-      "position_frames": 98266
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/271460.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4234/laugh/0045.wav",
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-      "start_time": 3.9005446026072246,
-      "speaker_id": "4234"
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
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-      "duration": 0.5765833119360855,
-      "start_time": 18.405777474160402,
-      "speaker_id": "572"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052103.json b/conversations/conv_052103.json
deleted file mode 100644
index 28d87df779f0befad8aa655393a949084ab7974a..0000000000000000000000000000000000000000
--- a/conversations/conv_052103.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.669551806024266,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.010020206432469,
-      "duration": 5.010020206432469,
-      "start_frame": 0,
-      "duration_frames": 80160,
-      "overlap": false,
-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.2042808079735075,
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-      "duration": 5.17927358901367,
-      "start_frame": 83268,
-      "duration_frames": 82868,
-      "overlap": false,
-      "utterance_id": "1460-138290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.253302206214556,
-      "end_time": 16.835902226400222,
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-      "start_frame": 180052,
-      "duration_frames": 89321,
-      "overlap": false,
-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.449295394884665,
-      "end_time": 20.760594163292744,
-      "duration": 3.3112987684080806,
-      "start_frame": 279188,
-      "duration_frames": 52980,
-      "overlap": false,
-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 80160
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.886605057524097,
-      "end_time": 26.131840388033332,
-      "duration": 5.245235330509234,
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-      "duration_frames": 83923,
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-      "utterance_id": "2815-160188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2815-160188.flac |",
-      "real_speaker_id": "2815",
-      "position_frames": 89321
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.66738002023391,
-      "end_time": 31.669551806024266,
-      "duration": 5.002171785790358,
-      "start_frame": 426678,
-      "duration_frames": 80034,
-      "overlap": false,
-      "utterance_id": "1460-138289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138289.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2276/cough/0034.wav",
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-      "start_time": 5.074320418002895,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1460/laugh/0097.wav",
-      "duration": 1.3449829422036932,
-      "start_time": 6.095341754311129,
-      "speaker_id": "1460"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2815/cough/0002.wav",
-      "duration": 0.9118500754418379,
-      "start_time": 16.991557512625338,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2276/laugh/0036.wav",
-      "duration": 0.7284440955582248,
-      "start_time": 16.540659002606095,
-      "speaker_id": "2276"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052114.json b/conversations/conv_052114.json
deleted file mode 100644
index 9359c462d8fdd5c1b6c099e0a31e11ca37afb098..0000000000000000000000000000000000000000
--- a/conversations/conv_052114.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.035331566990983,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.678779669036849,
-      "duration": 6.678779669036849,
-      "start_frame": 0,
-      "duration_frames": 106860,
-      "overlap": false,
-      "utterance_id": "7967-104986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-104986.flac |",
-      "real_speaker_id": "7967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.460993449235108,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8312-279790.flac |",
-      "real_speaker_id": "8312",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7967-104986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-104986.flac |",
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-      "position_frames": 106860
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-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.29837676289627,
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-      "real_speaker_id": "2989",
-      "position_frames": 0
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "start_time": 11.2554472272316,
-      "speaker_id": "8312"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052118.json b/conversations/conv_052118.json
deleted file mode 100644
index 0ece90753a75f02d78f20884cd1d462928f3eb23..0000000000000000000000000000000000000000
--- a/conversations/conv_052118.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "6300",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 66616
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.69489756238833,
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-      "duration_frames": 85007,
-      "overlap": false,
-      "utterance_id": "6300-39661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 102807
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.351922341580774,
-      "end_time": 27.897201327227016,
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-      "overlap": true,
-      "utterance_id": "3905-149791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.909277334231366,
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-      "duration": 3.0907226657686344,
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-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 167666
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6300/laugh/0088.wav",
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\ No newline at end of file
diff --git a/conversations/conv_052122.json b/conversations/conv_052122.json
deleted file mode 100644
index 73463379b97cbde0693627d21d0b39fbe918a544..0000000000000000000000000000000000000000
--- a/conversations/conv_052122.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.602677129986745,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "4257-6397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-12731.flac |",
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-      "position_frames": 0
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-      "utterance_id": "561-126319",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/561-126319.flac |",
-      "real_speaker_id": "561",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-12731.flac |",
-      "real_speaker_id": "2481",
-      "position_frames": 94191
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.70334224541002,
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-      "utterance_id": "4257-6397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
-      "position_frames": 74816
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
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-      "event_class": "Alarm_bell_ringing",
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-      "duration": 1.48,
-      "start_time": 30.52,
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052129.json b/conversations/conv_052129.json
deleted file mode 100644
index dac46689d4f192067ef96f9383604dfc3ca5d926..0000000000000000000000000000000000000000
--- a/conversations/conv_052129.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "4926-23281",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4926-23281.flac |",
-      "real_speaker_id": "4926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.493947417151256,
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-      "utterance_id": "3268-59224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3268-59224.flac |",
-      "real_speaker_id": "3268",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "1559-139353",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1559-139353.flac |",
-      "real_speaker_id": "1559",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3268-59225",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3268-59225.flac |",
-      "real_speaker_id": "3268",
-      "position_frames": 0
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-      "real_speaker_id": "4926",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3268-59226",
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-      "real_speaker_id": "3268",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052134.json b/conversations/conv_052134.json
deleted file mode 100644
index f2a470d30e72dc07b84e1e3c93dbf9eaae597c9f..0000000000000000000000000000000000000000
--- a/conversations/conv_052134.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2491-134787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2491-134787.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "real_speaker_id": "6993",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-9321.flac |",
-      "real_speaker_id": "3546",
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-    {
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-      "utterance_id": "6993-83606",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83606.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.8937898168673,
-      "end_time": 28.6228987283805,
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-      "utterance_id": "3546-175390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.36346755048815,
-      "end_time": 32.0,
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-      "utterance_id": "6993-83607",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83607.flac |",
-      "real_speaker_id": "6993",
-      "position_frames": 88375
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3546/cough/0015.wav",
-      "duration": 0.41836647475039435,
-      "start_time": 21.358251729787384,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6993/laugh/0023.wav",
-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "6993"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052138.json b/conversations/conv_052138.json
deleted file mode 100644
index 2f648033313118777149ec83c930953efe9b3416..0000000000000000000000000000000000000000
--- a/conversations/conv_052138.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.76024896930995,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.666330454004629,
-      "duration": 4.666330454004629,
-      "start_frame": 0,
-      "duration_frames": 74661,
-      "overlap": false,
-      "utterance_id": "4495-10160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-10160.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.871295038058237,
-      "end_time": 8.147981004985734,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.868517631808375,
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-      "utterance_id": "4495-10160",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4495-10160.flac |",
-      "real_speaker_id": "4495",
-      "position_frames": 74661
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.888074740361894,
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-      "utterance_id": "589-146346",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-146346.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.925772837060446,
-      "end_time": 24.969729210898638,
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-      "overlap": false,
-      "utterance_id": "7240-92200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-92200.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.88876428560709,
-      "end_time": 31.76024896930995,
-      "duration": 5.871484683702862,
-      "start_frame": 414220,
-      "duration_frames": 93943,
-      "overlap": false,
-      "utterance_id": "589-139200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/589-139200.flac |",
-      "real_speaker_id": "589",
-      "position_frames": 52426
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
-      "start_time": 1.9447896433817464
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "4495"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/589/cough/0019.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
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-    {
-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "589"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052143.json b/conversations/conv_052143.json
deleted file mode 100644
index ecffeefce5a6da220bedf1c665ca7c9074732cf0..0000000000000000000000000000000000000000
--- a/conversations/conv_052143.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "overlap": false,
-      "utterance_id": "5471-280362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-280362.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.220212212850487,
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-      "duration": 4.520534961006361,
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-      "duration_frames": 72328,
-      "overlap": false,
-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5471-284440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5471-284440.flac |",
-      "real_speaker_id": "5471",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.217488940061225,
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-      "overlap": false,
-      "utterance_id": "2741-159386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
-      "real_speaker_id": "2741",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.29769761406621,
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-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 72328
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.175403051699284,
-      "end_time": 32.0,
-      "duration": 3.824596948300716,
-      "start_frame": 450806,
-      "duration_frames": 61193,
-      "overlap": false,
-      "utterance_id": "6782-61316",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6782-61316.flac |",
-      "real_speaker_id": "6782",
-      "position_frames": 171660
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6782/laugh/0096.wav",
-      "duration": 0.5556258493753339,
-      "start_time": 20.48499029408623,
-      "speaker_id": "6782"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6782/cough/0113.wav",
-      "duration": 1.04,
-      "start_time": 22.560632937297324,
-      "speaker_id": "6782"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052154.json b/conversations/conv_052154.json
deleted file mode 100644
index 49b7a88842040fc0271f371ab85270482b3d53d4..0000000000000000000000000000000000000000
--- a/conversations/conv_052154.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.508484285906956,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8432-16000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-16000.flac |",
-      "real_speaker_id": "8432",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.034236989278543,
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-      "utterance_id": "8432-54083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-54083.flac |",
-      "real_speaker_id": "8432",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.369280060582511,
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-      "start_frame": 165908,
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-      "overlap": false,
-      "utterance_id": "6135-41995",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6135-41995.flac |",
-      "real_speaker_id": "6135",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.902647408313529,
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-      "duration_frames": 74984,
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-      "utterance_id": "8432-54083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-54083.flac |",
-      "real_speaker_id": "8432",
-      "position_frames": 75395
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.555880850822696,
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-      "utterance_id": "3054-128242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.078044487392845,
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-      "utterance_id": "3054-128245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128245.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.380456855569037,
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-      "duration_frames": 34048,
-      "overlap": true,
-      "utterance_id": "8432-16000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8432-16000.flac |",
-      "real_speaker_id": "8432",
-      "position_frames": 75764
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/589_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8432/cough/0056.wav",
-      "duration": 0.8,
-      "start_time": 0,
-      "speaker_id": "8432"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8432/laugh/0025.wav",
-      "duration": 1.14,
-      "start_time": 3.6737514931100694,
-      "speaker_id": "8432"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6135/cough/0075.wav",
-      "duration": 1.24,
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-    {
-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 20.65090751177269,
-      "speaker_id": "3054"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052155.json b/conversations/conv_052155.json
deleted file mode 100644
index 16af1ec798360b7395d80c21db4254eb1de35532..0000000000000000000000000000000000000000
--- a/conversations/conv_052155.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.930734344439962,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "6535-114962",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6535-114962.flac |",
-      "real_speaker_id": "6535",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157861.flac |",
-      "real_speaker_id": "2473",
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-      "speaker_id": "2473"
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\ No newline at end of file
diff --git a/conversations/conv_052159.json b/conversations/conv_052159.json
deleted file mode 100644
index a04edaec61b99bc72cc5b0b0b6aaed261b60e332..0000000000000000000000000000000000000000
--- a/conversations/conv_052159.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.276388433603625,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-121085.flac |",
-      "real_speaker_id": "90",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2999-156967.flac |",
-      "real_speaker_id": "2999",
-      "position_frames": 75586
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-130566.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.30674014058531,
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-      "utterance_id": "3606-164911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3606-164911.flac |",
-      "real_speaker_id": "3606",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2999-156968.flac |",
-      "real_speaker_id": "2999",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052163.json b/conversations/conv_052163.json
deleted file mode 100644
index 201d195b2d457b356f35e41b3e2ac091ada8833e..0000000000000000000000000000000000000000
--- a/conversations/conv_052163.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "3825-134148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3825-134148.flac |",
-      "real_speaker_id": "3825",
-      "position_frames": 0
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-      "real_speaker_id": "3825",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "1710",
-      "position_frames": 91978
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1710-133295.flac |",
-      "real_speaker_id": "1710",
-      "position_frames": 177927
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "end_time": 32.0,
-      "duration": 2.447680838120526,
-      "start_frame": 472837,
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-      "overlap": false,
-      "utterance_id": "6082-56174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1710"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052168.json b/conversations/conv_052168.json
deleted file mode 100644
index 4e1a7e00f364354ee6216d13c30a66f833bb1168..0000000000000000000000000000000000000000
--- a/conversations/conv_052168.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.93151715886695,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3691-178118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178118.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.138272148167811,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178118.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 100019
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "5299-34547",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5299-34547.flac |",
-      "real_speaker_id": "5299",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3691",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8975",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5299-34547.flac |",
-      "real_speaker_id": "5299",
-      "position_frames": 81438
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5299/cough/0015.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052175.json b/conversations/conv_052175.json
deleted file mode 100644
index c0b9b2a7d7b6c91eeef0530e3d5fa6dce15f16fa..0000000000000000000000000000000000000000
--- a/conversations/conv_052175.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_052179.json b/conversations/conv_052179.json
deleted file mode 100644
index 404a58ef92718704ed6c1cf639723c9ee0dfe31e..0000000000000000000000000000000000000000
--- a/conversations/conv_052179.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_052180.json b/conversations/conv_052180.json
deleted file mode 100644
index 605d560fe7eeb3c07c4fc311c1c2e9545ac96485..0000000000000000000000000000000000000000
--- a/conversations/conv_052180.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "4629",
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\ No newline at end of file
diff --git a/conversations/conv_052187.json b/conversations/conv_052187.json
deleted file mode 100644
index 5a8f72f0a0c102743956dda99048a4a3c9c0ceca..0000000000000000000000000000000000000000
--- a/conversations/conv_052187.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6014/cough/0021.wav",
-      "duration": 1.2603887190066796,
-      "start_time": 29.35358777318053,
-      "speaker_id": "6014"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8011/laugh/0039.wav",
-      "duration": 0.8302444973655427,
-      "start_time": 31.16975550263446,
-      "speaker_id": "8011"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052191.json b/conversations/conv_052191.json
deleted file mode 100644
index cedf4b14cfda0959571786a0e82062d816e4ce05..0000000000000000000000000000000000000000
--- a/conversations/conv_052191.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.057358471199929,
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-      "duration_frames": 80917,
-      "overlap": false,
-      "utterance_id": "4959-28894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28894.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.349215858235859,
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-      "overlap": true,
-      "utterance_id": "2990-6534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2990-6534.flac |",
-      "real_speaker_id": "2990",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.310211270863396,
-      "end_time": 18.871603133896073,
-      "duration": 5.561391863032679,
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-      "overlap": false,
-      "utterance_id": "4959-28894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28894.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 80917
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.682488550252287,
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-      "duration": 4.867030660086052,
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-      "overlap": true,
-      "utterance_id": "2990-6535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2990-6535.flac |",
-      "real_speaker_id": "2990",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.019703879066036,
-      "end_time": 27.75584873085519,
-      "duration": 3.736144851789156,
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-      "duration_frames": 59778,
-      "overlap": false,
-      "utterance_id": "4959-28894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28894.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 169899
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.572051139449734,
-      "end_time": 32.0,
-      "duration": 3.4279488605502664,
-      "start_frame": 457152,
-      "duration_frames": 54847,
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-      "utterance_id": "2990-6535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2990-6535.flac |",
-      "real_speaker_id": "2990",
-      "position_frames": 77872
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_6.wav",
-      "duration": 0.5768027210884353,
-      "start_time": 17.611545646849457
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/164574.wav",
-      "duration": 0.09782312925170068,
-      "start_time": 3.247701762173075
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2990/laugh/0112.wav",
-      "duration": 1.0406314640375782,
-      "start_time": 10.100201515810259,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2990/laugh/0035.wav",
-      "duration": 1.48,
-      "start_time": 19.41038380487101,
-      "speaker_id": "2990"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052196.json b/conversations/conv_052196.json
deleted file mode 100644
index d65e63d374d2874aa46daa8b659a217997e91239..0000000000000000000000000000000000000000
--- a/conversations/conv_052196.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.457510583351654,
-      "duration": 4.457510583351654,
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-      "overlap": false,
-      "utterance_id": "8334-119398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8334-119398.flac |",
-      "real_speaker_id": "8334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.885135186041616,
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-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7933-113272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-113272.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 21.04956423432786,
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-      "overlap": false,
-      "utterance_id": "5538-70919",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5538-70919.flac |",
-      "real_speaker_id": "5538",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.366416358382274,
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-      "duration": 4.633583641617726,
-      "start_frame": 437862,
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-      "utterance_id": "7933-112597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 96378
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  ],
-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_1.wav",
-      "duration": 2.0669614512471655,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8334/cough/0070.wav",
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-      "speaker_id": "7933"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052200.json b/conversations/conv_052200.json
deleted file mode 100644
index 979f02ccc2577ab222b976e3138469fba225a602..0000000000000000000000000000000000000000
--- a/conversations/conv_052200.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.313078813391915,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "6683-67218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-67218.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1265-135636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
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-    {
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-      "duration_frames": 72196,
-      "overlap": true,
-      "utterance_id": "6683-67218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-67218.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 71495
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 16.266454805355465,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135636.flac |",
-      "real_speaker_id": "1265",
-      "position_frames": 103240
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.68919958185866,
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-      "utterance_id": "6683-63839",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-63839.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.424352135966764,
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-      "overlap": false,
-      "utterance_id": "6553-82558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-82558.flac |",
-      "real_speaker_id": "6553",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1265/laugh/0060.wav",
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-      "speaker_id": "1265"
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-    {
-      "event_class": "cough",
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-      "duration": 1.24,
-      "start_time": 21.256582445859756,
-      "speaker_id": "6683"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052207.json b/conversations/conv_052207.json
deleted file mode 100644
index 02aa7897457d3662dbfe1a59e5edb6cf66305e7a..0000000000000000000000000000000000000000
--- a/conversations/conv_052207.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "782-126738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/782-126738.flac |",
-      "real_speaker_id": "782",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.919480771021754,
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-      "utterance_id": "5567-22441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22441.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "5567-22447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22447.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.98948726067614,
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-      "duration_frames": 83414,
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-      "utterance_id": "5448-19209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19209.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "5567-22447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5567-22447.flac |",
-      "real_speaker_id": "5567",
-      "position_frames": 78010
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "5448-19208",
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-  "foreground_events": [
-    {
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-      "event_class": "Cat",
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-      "start_time": 26.402806753621643
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_052211.json b/conversations/conv_052211.json
deleted file mode 100644
index 651f9e37eea12046738de9150af6363bf73d0a92..0000000000000000000000000000000000000000
--- a/conversations/conv_052211.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "5649-40567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40567.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64733.flac |",
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/483-125126.flac |",
-      "real_speaker_id": "483",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.236288766245423,
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-      "duration": 6.543281326668346,
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-      "overlap": true,
-      "utterance_id": "5649-40561",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40561.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.128546138188966,
-      "end_time": 32.0,
-      "duration": 0.8714538618110339,
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-      "utterance_id": "5649-40561",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5649-40561.flac |",
-      "real_speaker_id": "5649",
-      "position_frames": 104692
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
-      "duration": 1.7793885944932821,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/483/laugh/0010.wav",
-      "duration": 0.6211381260865994,
-      "start_time": 7.097663240048837,
-      "speaker_id": "483"
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-    {
-      "event_class": "cough",
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-      "duration": 0.8548168310269075,
-      "start_time": 3.8883859718187486,
-      "speaker_id": "483"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6332/cough/0058.wav",
-      "duration": 0.4866828211102977,
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-      "speaker_id": "6332"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5649/cough/0066.wav",
-      "duration": 0.8777170029824346,
-      "start_time": 31.122282997017564,
-      "speaker_id": "5649"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052216.json b/conversations/conv_052216.json
deleted file mode 100644
index 1507c6161aa6eb4eb4592b8ffc558e0fb2b7f64f..0000000000000000000000000000000000000000
--- a/conversations/conv_052216.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.254213299494243,
-      "duration": 4.254213299494243,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1545-161007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.092324897007652,
-      "end_time": 11.912797146217514,
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-      "utterance_id": "2573-186232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-186232.flac |",
-      "real_speaker_id": "2573",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.956529921317298,
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-      "overlap": true,
-      "utterance_id": "1545-161007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 68067
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.83249107058164,
-      "end_time": 23.83263873985778,
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-      "duration_frames": 80002,
-      "overlap": false,
-      "utterance_id": "2573-186232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2573-186232.flac |",
-      "real_speaker_id": "2573",
-      "position_frames": 109127
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.519051481777208,
-      "end_time": 29.1813577640683,
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-      "overlap": false,
-      "utterance_id": "1593-91064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1593-91064.flac |",
-      "real_speaker_id": "1593",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.314522167664705,
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-      "duration": 2.6854778323352946,
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-      "duration_frames": 42967,
-      "overlap": false,
-      "utterance_id": "1545-161007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 150693
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_1.wav",
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-      "event_class": "Dog",
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-    {
-      "event_class": "cough",
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-      "duration": 1.26,
-      "start_time": 11.412422368742396,
-      "speaker_id": "1545"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 1.42,
-      "start_time": 18.196981739392005,
-      "speaker_id": "1545"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2573/laugh/0054.wav",
-      "duration": 0.8,
-      "start_time": 20.474696367484672,
-      "speaker_id": "2573"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052227.json b/conversations/conv_052227.json
deleted file mode 100644
index 24648ac76856f69fd7dc413b4c9d2416ae565742..0000000000000000000000000000000000000000
--- a/conversations/conv_052227.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5725-44938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-44938.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274374.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8225-274374.flac |",
-      "real_speaker_id": "8225",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.83428732465175,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3271-169289.flac |",
-      "real_speaker_id": "3271",
-      "position_frames": 63848
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5725-44938.flac |",
-      "real_speaker_id": "5725",
-      "position_frames": 49837
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.613452945954723,
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-      "utterance_id": "5725-50452",
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-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5725/cough/0135.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3271/laugh/0031.wav",
-      "duration": 1.06,
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-    },
-    {
-      "event_class": "laugh",
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-      "start_time": 17.53261702836262,
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-    },
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "5725"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052231.json b/conversations/conv_052231.json
deleted file mode 100644
index f00f9c7987d93614cbb4e82b90cac78c87ae1fa5..0000000000000000000000000000000000000000
--- a/conversations/conv_052231.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.078041882997942,
-      "start_frame": 0,
-      "duration_frames": 49248,
-      "overlap": false,
-      "utterance_id": "4352-893",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-893.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.739235110759565,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4583-16044.flac |",
-      "real_speaker_id": "4583",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.753593933951475,
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-      "utterance_id": "4352-10940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-10940.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.3718680481729,
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-      "duration_frames": 48781,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3230-137483.flac |",
-      "real_speaker_id": "3230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.049404203135566,
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-      "real_speaker_id": "4352",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "3230",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4352-10941.flac |",
-      "real_speaker_id": "4352",
-      "position_frames": 93194
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-  ],
-  "background_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4583/laugh/0057.wav",
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-      "start_time": 5.786094515523612,
-      "speaker_id": "4583"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4352/laugh/0032.wav",
-      "duration": 1.26,
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-      "event_class": "cough",
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-      "speaker_id": "3230"
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-      "speaker_id": "4352"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052241.json b/conversations/conv_052241.json
deleted file mode 100644
index ca3fe421ec6d7001a0eb44d279bc384f8b200e88..0000000000000000000000000000000000000000
--- a/conversations/conv_052241.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.55243188490237,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262282.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8421-283462.flac |",
-      "real_speaker_id": "8421",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1726-142316.flac |",
-      "real_speaker_id": "1726",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8644-262282",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8644-262282.flac |",
-      "real_speaker_id": "8644",
-      "position_frames": 145507
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-      "speaker_id": "8644"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052246.json b/conversations/conv_052246.json
deleted file mode 100644
index eccdee5e116fa59284b0f5bf9f3adcd11d0bd5eb..0000000000000000000000000000000000000000
--- a/conversations/conv_052246.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "3094-136458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
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-      "real_speaker_id": "7957",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
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-    {
-      "segment_id": "seg0005",
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-      "duration": 5.715552077675696,
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-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 140029
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-  ],
-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "speaker_id": "7809"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052250.json b/conversations/conv_052250.json
deleted file mode 100644
index 8864e44aac784bd487419b071716cfe0721a3825..0000000000000000000000000000000000000000
--- a/conversations/conv_052250.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-127690.flac |",
-      "real_speaker_id": "470",
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-      "segment_id": "seg0003",
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-    {
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-      "position_frames": 108646
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3440-171006",
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-      "real_speaker_id": "3440",
-      "position_frames": 83979
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8803/laugh/0024.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052257.json b/conversations/conv_052257.json
deleted file mode 100644
index 63d703d6d87c8be3a9560e7e3dccf5f563b76f33..0000000000000000000000000000000000000000
--- a/conversations/conv_052257.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7000",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4680-16026.flac |",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_052266.json b/conversations/conv_052266.json
deleted file mode 100644
index 3b3aacf8c973ad66439a0c07b15e21f1b397e048..0000000000000000000000000000000000000000
--- a/conversations/conv_052266.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.394368187743737,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_052270.json b/conversations/conv_052270.json
deleted file mode 100644
index 290f33d735fa5853010c1734ed694f9bf042a89a..0000000000000000000000000000000000000000
--- a/conversations/conv_052270.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_052282.json b/conversations/conv_052282.json
deleted file mode 100644
index 00d1751b297281a045326991301465df93665a4c..0000000000000000000000000000000000000000
--- a/conversations/conv_052282.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.725353965891443,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1018-135221.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_052285.json b/conversations/conv_052285.json
deleted file mode 100644
index 1e95596ed7170f12f3a8a0f5724dd8587c3e9547..0000000000000000000000000000000000000000
--- a/conversations/conv_052285.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_052289.json b/conversations/conv_052289.json
deleted file mode 100644
index 914d424afa1f431a6ee3b28a50285f1e71fc31e8..0000000000000000000000000000000000000000
--- a/conversations/conv_052289.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1283-136983.flac |",
-      "real_speaker_id": "1283",
-      "position_frames": 0
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-      "real_speaker_id": "2598",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_052292.json b/conversations/conv_052292.json
deleted file mode 100644
index ffc99dcc487634f43ef6cdc33271df87d4015fe5..0000000000000000000000000000000000000000
--- a/conversations/conv_052292.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052293.json b/conversations/conv_052293.json
deleted file mode 100644
index f0122cf0e969b5d809fc871842a72f03967f1dbf..0000000000000000000000000000000000000000
--- a/conversations/conv_052293.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 23.119836227268404,
-      "speaker_id": "1733"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1485/laugh/0080.wav",
-      "duration": 1.2744763105967614,
-      "start_time": 30.72552368940324,
-      "speaker_id": "1485"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1485/cough/0061.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "1485"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052303.json b/conversations/conv_052303.json
deleted file mode 100644
index cbdc9b243c51dc4c3512b125c35b84db8f5733ac..0000000000000000000000000000000000000000
--- a/conversations/conv_052303.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.08281282852027,
-      "duration": 3.08281282852027,
-      "start_frame": 0,
-      "duration_frames": 49325,
-      "overlap": false,
-      "utterance_id": "8643-269254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-269254.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.6896429860444204,
-      "end_time": 7.9633585781241925,
-      "duration": 4.273715592079772,
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-      "duration_frames": 68379,
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-      "utterance_id": "8887-281471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8887-281471.flac |",
-      "real_speaker_id": "8887",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.176630511884847,
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-      "utterance_id": "8887-281471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8887-281471.flac |",
-      "real_speaker_id": "8887",
-      "position_frames": 68379
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.977010456530387,
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-      "overlap": false,
-      "utterance_id": "7276-90847",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-90847.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.775078938927464,
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-      "overlap": false,
-      "utterance_id": "8887-281472",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8887-281472.flac |",
-      "real_speaker_id": "8887",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.098116800146727,
-      "end_time": 30.689771284458956,
-      "duration": 3.591654484312228,
-      "start_frame": 433569,
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-      "overlap": false,
-      "utterance_id": "7276-284424",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7276-284424.flac |",
-      "real_speaker_id": "7276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.887461620400423,
-      "end_time": 32.0,
-      "duration": 1.1125383795995774,
-      "start_frame": 494199,
-      "duration_frames": 17800,
-      "overlap": false,
-      "utterance_id": "8643-269254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8643-269254.flac |",
-      "real_speaker_id": "8643",
-      "position_frames": 49325
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.3406395528768,
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-      "event_class": "Frying",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7276/laugh/0087.wav",
-      "duration": 0.924922251164741,
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-      "speaker_id": "8643"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052304.json b/conversations/conv_052304.json
deleted file mode 100644
index ad8b770839563a3b7571b81699931481a50f87d4..0000000000000000000000000000000000000000
--- a/conversations/conv_052304.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "6025-58759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58759.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7507",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-58759.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 68365
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "7507-100422",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7507-100422.flac |",
-      "real_speaker_id": "7507",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.998739793917075,
-      "end_time": 26.993170530066447,
-      "duration": 4.994430736149373,
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-      "duration_frames": 79910,
-      "overlap": false,
-      "utterance_id": "1985-144468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
-      "real_speaker_id": "1985",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.746978612082124,
-      "end_time": 32.0,
-      "duration": 4.253021387917876,
-      "start_frame": 443951,
-      "duration_frames": 68048,
-      "overlap": false,
-      "utterance_id": "6025-56405",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6025-56405.flac |",
-      "real_speaker_id": "6025",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6025/laugh/0095.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1985/cough/0112.wav",
-      "duration": 0.5346577802076533,
-      "start_time": 21.381819519088793,
-      "speaker_id": "1985"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052312.json b/conversations/conv_052312.json
deleted file mode 100644
index 7ed01b25c99d1dc9c8c7c8954c154d5366f065cf..0000000000000000000000000000000000000000
--- a/conversations/conv_052312.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.605974143661637,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
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-    {
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-      "start_time": 6.4344499618942805,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-274392.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-131525.flac |",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "8245-274393",
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-      "real_speaker_id": "8245",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.216856374932544,
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-      "overlap": true,
-      "utterance_id": "1804-170447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-170447.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.371394421651978,
-      "end_time": 30.605974143661637,
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-      "start_frame": 437942,
-      "duration_frames": 51753,
-      "overlap": false,
-      "utterance_id": "8245-274393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8245-274393.flac |",
-      "real_speaker_id": "8245",
-      "position_frames": 58340
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8245/laugh/0012.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8245/cough/0002.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1804/laugh/0042.wav",
-      "duration": 1.24,
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-      "speaker_id": "1804"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052315.json b/conversations/conv_052315.json
deleted file mode 100644
index 098e5ad9d07664a7eadfcb5833512905103058d7..0000000000000000000000000000000000000000
--- a/conversations/conv_052315.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7220-77905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77905.flac |",
-      "real_speaker_id": "7220",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.906556520527545,
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-      "real_speaker_id": "242",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-126842.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 95655
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.985874687786257,
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-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "start_time": 0,
-      "speaker_id": "7220"
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "start_time": 30.68,
-      "speaker_id": "1813"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052319.json b/conversations/conv_052319.json
deleted file mode 100644
index 2743f79902fb3c8b82e4a7775f75b315232af2c9..0000000000000000000000000000000000000000
--- a/conversations/conv_052319.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.114315630895977,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-96512.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.221434743494342,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7467-261121.flac |",
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-      "start_time": 10.793157900258537,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256238.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "7062-80029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-80029.flac |",
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-    {
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-      "utterance_id": "8208-256239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8208-256239.flac |",
-      "real_speaker_id": "8208",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-75816.flac |",
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_052323.json b/conversations/conv_052323.json
deleted file mode 100644
index ad5291e5144ef04d0ed5a044c8b3563aff2f12ce..0000000000000000000000000000000000000000
--- a/conversations/conv_052323.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5077-38105.flac |",
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-      "real_speaker_id": "7505",
-      "position_frames": 63156
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-      "real_speaker_id": "5077",
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\ No newline at end of file
diff --git a/conversations/conv_052328.json b/conversations/conv_052328.json
deleted file mode 100644
index fe0edace5383349b9c83095b08c166765db05572..0000000000000000000000000000000000000000
--- a/conversations/conv_052328.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6690-73073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6690-73073.flac |",
-      "real_speaker_id": "6690",
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-      "segment_id": "seg0001",
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-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_052335.json b/conversations/conv_052335.json
deleted file mode 100644
index 1a698a9f737f1181cf17f9105e4ab970335a4acc..0000000000000000000000000000000000000000
--- a/conversations/conv_052335.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.691282135885608,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8543-280376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8543-280376.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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\ No newline at end of file
diff --git a/conversations/conv_052338.json b/conversations/conv_052338.json
deleted file mode 100644
index f8a8c67fdb2e36cc71c0ec5a9b5bec5ed831ae75..0000000000000000000000000000000000000000
--- a/conversations/conv_052338.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1795-142410.flac |",
-      "real_speaker_id": "1795",
-      "position_frames": 0
-    },
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-      "start_time": 6.540336531946723,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1795-142412.flac |",
-      "real_speaker_id": "1795",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5445-21280.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_052339.json b/conversations/conv_052339.json
deleted file mode 100644
index a561b956371db9b6af876a620fecfb7f8ce5fae6..0000000000000000000000000000000000000000
--- a/conversations/conv_052339.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4701-15273.flac |",
-      "real_speaker_id": "4701",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/505-125258.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_052342.json b/conversations/conv_052342.json
deleted file mode 100644
index 764555b17764879b2db7fdfd3fdfb617477aa50b..0000000000000000000000000000000000000000
--- a/conversations/conv_052342.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
-  "overlap_rate": 0.4,
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-      "real_speaker_id": "8643",
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-      "segment_id": "seg0003",
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\ No newline at end of file
diff --git a/conversations/conv_052345.json b/conversations/conv_052345.json
deleted file mode 100644
index 65873c1c74af7ddb5e443a85f4add8d7004e3e7e..0000000000000000000000000000000000000000
--- a/conversations/conv_052345.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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\ No newline at end of file
diff --git a/conversations/conv_052353.json b/conversations/conv_052353.json
deleted file mode 100644
index 7135092e81ead8a6b585c81525bdd90242ec36ec..0000000000000000000000000000000000000000
--- a/conversations/conv_052353.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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-      "position_frames": 0
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_052354.json b/conversations/conv_052354.json
deleted file mode 100644
index db19c7c63216d6bf616228202e0d7686db6f86a5..0000000000000000000000000000000000000000
--- a/conversations/conv_052354.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_052358.json b/conversations/conv_052358.json
deleted file mode 100644
index 570687103c1b49525588f41e887ac0fbfa2bc6e7..0000000000000000000000000000000000000000
--- a/conversations/conv_052358.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_052362.json b/conversations/conv_052362.json
deleted file mode 100644
index 20d66c8065e6f7e7c0a6ec8387b9faaceeb13973..0000000000000000000000000000000000000000
--- a/conversations/conv_052362.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
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-      "duration": 1.16,
-      "start_time": 12.603907953201796,
-      "speaker_id": "4013"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052374.json b/conversations/conv_052374.json
deleted file mode 100644
index f5a70b771a8e0cc3fa3756aa860a0f04325b02e2..0000000000000000000000000000000000000000
--- a/conversations/conv_052374.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.882432834441776,
-      "duration": 5.882432834441776,
-      "start_frame": 0,
-      "duration_frames": 94118,
-      "overlap": false,
-      "utterance_id": "1088-134315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134315.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.790782455682855,
-      "end_time": 11.879748412297012,
-      "duration": 5.088965956614156,
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-      "utterance_id": "7981-112057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112057.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 12.164508299618467,
-      "end_time": 15.852066239186085,
-      "duration": 3.687557939567618,
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-      "duration_frames": 59000,
-      "overlap": false,
-      "utterance_id": "1088-134315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134315.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 94118
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.4874318318231,
-      "end_time": 19.932762510235325,
-      "duration": 3.445330678412227,
-      "start_frame": 263798,
-      "duration_frames": 55125,
-      "overlap": false,
-      "utterance_id": "1088-134315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-134315.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 153118
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.72944765026206,
-      "end_time": 25.602657185736497,
-      "duration": 4.8732095354744365,
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-      "duration_frames": 77971,
-      "overlap": false,
-      "utterance_id": "7981-112057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112057.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 81423
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.89871815369721,
-      "end_time": 32.0,
-      "duration": 5.10128184630279,
-      "start_frame": 430379,
-      "duration_frames": 81620,
-      "overlap": false,
-      "utterance_id": "1088-129236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-129236.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
-      "duration": 11.450680272108844,
-      "start_time": 4.934074215619977
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7981/laugh/0042.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.489541153723794,
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-      "speaker_id": "7981"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1088/laugh/0050.wav",
-      "duration": 0.84,
-      "start_time": 15.861706040019124,
-      "speaker_id": "1088"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7981/cough/0031.wav",
-      "duration": 0.5535600860785412,
-      "start_time": 24.4270258134055,
-      "speaker_id": "7981"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052378.json b/conversations/conv_052378.json
deleted file mode 100644
index 2fe83b01d3bda16d65f554b259b8ed2cfcb52f35..0000000000000000000000000000000000000000
--- a/conversations/conv_052378.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.51997013665506,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.9979771519727185,
-      "duration": 6.9979771519727185,
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-      "overlap": false,
-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.124164677772443,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.883623110415567,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 111967
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.816692240382434,
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-      "utterance_id": "2712-3536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 94034
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "duration": 3.1651278866251964,
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-      "utterance_id": "6160-44912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6160-44912.flac |",
-      "real_speaker_id": "6160",
-      "position_frames": 203355
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.15224894197644,
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-      "duration": 2.367721194678623,
-      "start_frame": 466435,
-      "duration_frames": 37883,
-      "overlap": true,
-      "utterance_id": "319-134959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/319-134959.flac |",
-      "real_speaker_id": "319",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "start_time": 7.649726483432248
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406067_1.wav",
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6160/laugh/0068.wav",
-      "duration": 0.6229579207408411,
-      "start_time": 0,
-      "speaker_id": "6160"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2712/cough/0019.wav",
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-      "start_time": 20.277278428184985,
-      "speaker_id": "2712"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/319/laugh/0094.wav",
-      "duration": 0.5674267977801026,
-      "start_time": 31.4325732022199,
-      "speaker_id": "319"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/319/cough/0091.wav",
-      "duration": 1.24,
-      "start_time": 27.81711553465563,
-      "speaker_id": "319"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052380.json b/conversations/conv_052380.json
deleted file mode 100644
index fa48dd3fb52c5bd99a5a1f1295e074d8850ce0cc..0000000000000000000000000000000000000000
--- a/conversations/conv_052380.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
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-    {
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-      "start_time": 6.147115497940935,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-129994.flac |",
-      "real_speaker_id": "472",
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-      "real_speaker_id": "6695",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-129994.flac |",
-      "real_speaker_id": "472",
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-    {
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-      "real_speaker_id": "6695",
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-      "segment_id": "seg0005",
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-      "utterance_id": "472-129983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/472-129983.flac |",
-      "real_speaker_id": "472",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.01540344626081,
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-      "duration": 3.984596553739191,
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052381.json b/conversations/conv_052381.json
deleted file mode 100644
index 99354a48740fff0b55472b776ca934604209993a..0000000000000000000000000000000000000000
--- a/conversations/conv_052381.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3994-156757.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4703-73029.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67845.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 0
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3994/laugh/0013.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6614/laugh/0049.wav",
-      "duration": 1.24,
-      "start_time": 5.616924622673814,
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-      "speaker_id": "6614"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052397.json b/conversations/conv_052397.json
deleted file mode 100644
index 0ee90f6b29f843c2c15f6e05a445d55eb13204a9..0000000000000000000000000000000000000000
--- a/conversations/conv_052397.json
+++ /dev/null
@@ -1,88 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.318280048769122,
-      "end_time": 13.10038109601392,
-      "duration": 5.782101047244799,
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-      "duration_frames": 92513,
-      "overlap": false,
-      "utterance_id": "392-289427",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/392-289427.flac |",
-      "real_speaker_id": "392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.499079114105129,
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-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 95012
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.09021212292457,
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-      "utterance_id": "6251-93270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6251-93270.flac |",
-      "real_speaker_id": "6251",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.30913851038071,
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-      "duration": 4.690861489619291,
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-      "utterance_id": "392-131210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/392-131210.flac |",
-      "real_speaker_id": "392",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_0.wav",
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-      "start_time": 0.6330580307173524
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_052401.json b/conversations/conv_052401.json
deleted file mode 100644
index cd348d5922bba17e5f011e922e24b1eed040812e..0000000000000000000000000000000000000000
--- a/conversations/conv_052401.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1487-133273",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-140049.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
-      "real_speaker_id": "1487",
-      "position_frames": 86186
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1487-133273.flac |",
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-      "utterance_id": "1578-6379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-6379.flac |",
-      "real_speaker_id": "1578",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.762770253137155,
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-      "duration": 5.237229746862845,
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-      "duration_frames": 83795,
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-      "utterance_id": "4598-2503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4598-2503.flac |",
-      "real_speaker_id": "4598",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-      "speaker_id": "4598"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052416.json b/conversations/conv_052416.json
deleted file mode 100644
index 06b24a6426e1747af46ef9b4d679e89cdbd8da00..0000000000000000000000000000000000000000
--- a/conversations/conv_052416.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "303-123506",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123506.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123500.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": true,
-      "utterance_id": "6701-71401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71401.flac |",
-      "real_speaker_id": "6701",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.70000290453767,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123507.flac |",
-      "real_speaker_id": "303",
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-    {
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-      "utterance_id": "6701-71402",
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-      "real_speaker_id": "6701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.705873266920307,
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-      "duration": 1.2941267330796933,
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-      "utterance_id": "303-123506",
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052417.json b/conversations/conv_052417.json
deleted file mode 100644
index 9dba44c5f7125c66586f0cb5f148f5891f6c8873..0000000000000000000000000000000000000000
--- a/conversations/conv_052417.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.34154717055084,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4712-93896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-93896.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4712/laugh/0022.wav",
-      "duration": 1.1999237625878414,
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-      "speaker_id": "4712"
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-      "start_time": 18.366364364984726,
-      "speaker_id": "258"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_052421.json b/conversations/conv_052421.json
deleted file mode 100644
index 55da06ef4f12456895c83113128cab480ca94fc8..0000000000000000000000000000000000000000
--- a/conversations/conv_052421.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.272752235808916,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29142.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5009-2500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-2500.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.05252081148417,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-118675.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.823546187289608,
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-      "utterance_id": "5009-29143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5009-29143.flac |",
-      "real_speaker_id": "5009",
-      "position_frames": 82254
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-      "event_class": "Blender",
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-      "speaker_id": "3318"
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\ No newline at end of file
diff --git a/conversations/conv_052437.json b/conversations/conv_052437.json
deleted file mode 100644
index 7a1090d7bfd9778777b963f2172d80bf965fea54..0000000000000000000000000000000000000000
--- a/conversations/conv_052437.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-286667.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7097-73688.flac |",
-      "real_speaker_id": "7097",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3927-6556.flac |",
-      "real_speaker_id": "3927",
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\ No newline at end of file
diff --git a/conversations/conv_052440.json b/conversations/conv_052440.json
deleted file mode 100644
index e59139c2fc3e44283055ca3132c272f485a20505..0000000000000000000000000000000000000000
--- a/conversations/conv_052440.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132611.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_052441.json b/conversations/conv_052441.json
deleted file mode 100644
index 7b9c9dffb2f85bbd48965b35b3a63d6ed94830fd..0000000000000000000000000000000000000000
--- a/conversations/conv_052441.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "segments": [
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-      "utterance_id": "982-133226",
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-      "speaker_id": "1455"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052456.json b/conversations/conv_052456.json
deleted file mode 100644
index a8c26cad96ed23b21be5bbeb9ce00097375ba0d8..0000000000000000000000000000000000000000
--- a/conversations/conv_052456.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
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-      "utterance_id": "5147-32136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32136.flac |",
-      "real_speaker_id": "5147",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 19.66863261999078,
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-      "utterance_id": "6367-65536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 109756
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.285833034864954,
-      "end_time": 30.386440166079822,
-      "duration": 6.100607131214868,
-      "start_frame": 388573,
-      "duration_frames": 97609,
-      "overlap": false,
-      "utterance_id": "5147-32136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5147-32136.flac |",
-      "real_speaker_id": "5147",
-      "position_frames": 93547
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.85063017003124,
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-      "duration": 1.1493698299687587,
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-      "utterance_id": "3196-151981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052460.json b/conversations/conv_052460.json
deleted file mode 100644
index cc1173a8ea3803d819e13a8a5406f78ffe3697d6..0000000000000000000000000000000000000000
--- a/conversations/conv_052460.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.04088362167135,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "7688-112187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-112187.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-28304.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.394942804265288,
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-      "duration_frames": 53844,
-      "overlap": false,
-      "utterance_id": "5132-28304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-28304.flac |",
-      "real_speaker_id": "5132",
-      "position_frames": 77818
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.319028283339687,
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-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052476.json b/conversations/conv_052476.json
deleted file mode 100644
index e4b40eb61fff0faa3a9d5bff4ba456cb8844cd9b..0000000000000000000000000000000000000000
--- a/conversations/conv_052476.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.216099233578724,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5678-43302.flac |",
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-      "position_frames": 0
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-    {
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-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_052483.json b/conversations/conv_052483.json
deleted file mode 100644
index 1d0236df1d050c9bc54ab7b4f51e9a87a00489d1..0000000000000000000000000000000000000000
--- a/conversations/conv_052483.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/232915.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6892/laugh/0048.wav",
-      "duration": 0.6170526165721668,
-      "start_time": 16.097743646087885,
-      "speaker_id": "6892"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/716/cough/0058.wav",
-      "duration": 0.9980834345286684,
-      "start_time": 28.70606643841197,
-      "speaker_id": "716"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052484.json b/conversations/conv_052484.json
deleted file mode 100644
index 5de73781054b245f5e85ca1501fbd7f62b1a6e02..0000000000000000000000000000000000000000
--- a/conversations/conv_052484.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.172697088040572,
-      "duration": 6.172697088040572,
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-      "duration_frames": 98763,
-      "overlap": false,
-      "utterance_id": "7556-93308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-93308.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.519429671815188,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2488.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 11.506623313421947,
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-      "utterance_id": "7556-93308",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-93308.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 98763
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.524009244657297,
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-      "utterance_id": "5181-2488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2488.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 63742
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.23625600904407,
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-      "overlap": false,
-      "utterance_id": "2148-6983",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2148-6983.flac |",
-      "real_speaker_id": "2148",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.763414782801263,
-      "end_time": 32.0,
-      "duration": 5.236585217198737,
-      "start_frame": 428214,
-      "duration_frames": 83785,
-      "overlap": false,
-      "utterance_id": "5181-2488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2488.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 127264
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
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-      "event_class": "laugh",
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-      "speaker_id": "5181"
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\ No newline at end of file
diff --git a/conversations/conv_052492.json b/conversations/conv_052492.json
deleted file mode 100644
index 255703613ef8641f6eaa74185cc4ed47badab930..0000000000000000000000000000000000000000
--- a/conversations/conv_052492.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5778-12761.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "2276",
-      "position_frames": 52386
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "5062-294700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294700.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.925008228611937,
-      "end_time": 25.79961740849354,
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-      "start_frame": 318800,
-      "duration_frames": 93993,
-      "overlap": false,
-      "utterance_id": "2276-131549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-131549.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 119487
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.85783317281669,
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-      "overlap": false,
-      "utterance_id": "5062-294700",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5062-294700.flac |",
-      "real_speaker_id": "5062",
-      "position_frames": 91645
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "2276"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052495.json b/conversations/conv_052495.json
deleted file mode 100644
index 9f18e840a651e5a9f66114f232f75c97471c2596..0000000000000000000000000000000000000000
--- a/conversations/conv_052495.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "780-126736",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-129973.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4425-14497.flac |",
-      "real_speaker_id": "4425",
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-    {
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-      "speaker_id": 0,
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-      "real_speaker_id": "780",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/780-126736.flac |",
-      "real_speaker_id": "780",
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-      "position_frames": 64045
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/780/laugh/0061.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "4425"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052499.json b/conversations/conv_052499.json
deleted file mode 100644
index 5dfe9fde32507492e7dfc2bd910e786ccd479593..0000000000000000000000000000000000000000
--- a/conversations/conv_052499.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "2740-288813",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2740-288813.flac |",
-      "real_speaker_id": "2740",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "real_speaker_id": "6895",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
-      "real_speaker_id": "5977",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "6895",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5977-46900.flac |",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "speaker_id": "5977"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052504.json b/conversations/conv_052504.json
deleted file mode 100644
index 99dfb2fa35229c650ef3c4f35ac2558bdf8a9dbc..0000000000000000000000000000000000000000
--- a/conversations/conv_052504.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "57-121742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121742.flac |",
-      "real_speaker_id": "57",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
-      "start_time": 4.951128176805536,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295955.flac |",
-      "real_speaker_id": "7794",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290393.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.787407122882211,
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-      "utterance_id": "7794-295955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7794-295955.flac |",
-      "real_speaker_id": "7794",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290393.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 58353
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "7794",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.25964982162676,
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-      "utterance_id": "57-121074",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052505.json b/conversations/conv_052505.json
deleted file mode 100644
index 5052a94a597caec8186ce5bddcb31a2518cbb9fd..0000000000000000000000000000000000000000
--- a/conversations/conv_052505.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5246-30101.flac |",
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-      "real_speaker_id": "5246",
-      "position_frames": 61409
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "4898-20016",
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-      "real_speaker_id": "4898",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "7739-8592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-8592.flac |",
-      "real_speaker_id": "7739",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7739-107483.flac |",
-      "real_speaker_id": "7739",
-      "position_frames": 0
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-  "foreground_events": [
-    {
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-      "event_class": "cough",
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-      "speaker_id": "7739"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052509.json b/conversations/conv_052509.json
deleted file mode 100644
index d1a1f9ba49f33b1a8cb17089b5f7abb9d7638d68..0000000000000000000000000000000000000000
--- a/conversations/conv_052509.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.99422919473272,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "202-129387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/202-129387.flac |",
-      "real_speaker_id": "202",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 104192
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "2473",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2473-157859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2473-157859.flac |",
-      "real_speaker_id": "2473",
-      "position_frames": 79553
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "249-121331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
-      "real_speaker_id": "249",
-      "position_frames": 178685
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2473/laugh/0037.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2473/laugh/0096.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052513.json b/conversations/conv_052513.json
deleted file mode 100644
index 8535d39ca48d370f913e57cf7bfc336e9f38f98f..0000000000000000000000000000000000000000
--- a/conversations/conv_052513.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
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-      "real_speaker_id": "5637",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 31.434500813849084,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
-      "position_frames": 196228
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_2.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2380/laugh/0028.wav",
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 21.215997164099317,
-      "speaker_id": "2380"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052525.json b/conversations/conv_052525.json
deleted file mode 100644
index 5f7874d5901440d587a84b4e4981163f5baf41a3..0000000000000000000000000000000000000000
--- a/conversations/conv_052525.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.910388555781505,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
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-      "utterance_id": "8266-258263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258263.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258263.flac |",
-      "real_speaker_id": "8266",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 160677
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_2.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052529.json b/conversations/conv_052529.json
deleted file mode 100644
index 34c25b431f41e2536a5a1042688759ec12cec357..0000000000000000000000000000000000000000
--- a/conversations/conv_052529.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.37076238377567,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "3967-29012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-29012.flac |",
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-      "real_speaker_id": "5910",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "3967",
-      "position_frames": 66160
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "real_speaker_id": "1780",
-      "position_frames": 68272
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-  ],
-  "background_events": [
-    {
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052533.json b/conversations/conv_052533.json
deleted file mode 100644
index d644a2ca4fe05e63604e2f8299712ac7d44de453..0000000000000000000000000000000000000000
--- a/conversations/conv_052533.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "6106-58195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6106-58195.flac |",
-      "real_speaker_id": "6106",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-224.flac |",
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-      "segment_id": "seg0002",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-249866.flac |",
-      "real_speaker_id": "8631",
-      "position_frames": 0
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_052538.json b/conversations/conv_052538.json
deleted file mode 100644
index c47119db1a574330cedf8153a16d4fe48f65731f..0000000000000000000000000000000000000000
--- a/conversations/conv_052538.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.233004070650495,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8389-120181.flac |",
-      "real_speaker_id": "8389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.257157671652037,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3584-74477.flac |",
-      "real_speaker_id": "3584",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 7.863082896305789,
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-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "8389-120181",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8389-120181.flac |",
-      "real_speaker_id": "8389",
-      "position_frames": 62421
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.29617009279168,
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-      "utterance_id": "3584-178748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3584-178748.flac |",
-      "real_speaker_id": "3584",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.831760504777282,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-80699.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "start_time": 0,
-      "speaker_id": "8389"
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052544.json b/conversations/conv_052544.json
deleted file mode 100644
index cda4c48163ffde714247e27a1741073dbed17c44..0000000000000000000000000000000000000000
--- a/conversations/conv_052544.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "7691-108625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7691-108625.flac |",
-      "real_speaker_id": "7691",
-      "position_frames": 68393
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6749-53254.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_052548.json b/conversations/conv_052548.json
deleted file mode 100644
index 4608a7635a1f6dd616f520361c2cc39d9dd4144a..0000000000000000000000000000000000000000
--- a/conversations/conv_052548.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_052552.json b/conversations/conv_052552.json
deleted file mode 100644
index 0905fc4c0253837ca19ffee67e2448ab6edaafac..0000000000000000000000000000000000000000
--- a/conversations/conv_052552.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 152416
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-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.25618055314213,
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-      "duration": 2.74381944685787,
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-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
-      "position_frames": 73845
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "event_class": "laugh",
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-      "speaker_id": "4652"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052553.json b/conversations/conv_052553.json
deleted file mode 100644
index f45f6042a885158bc8c99b6b1666f3116f06c778..0000000000000000000000000000000000000000
--- a/conversations/conv_052553.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.105675730144602,
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-      "start_frame": 0,
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-      "utterance_id": "8825-292252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292252.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
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-      "real_speaker_id": "8825",
-      "position_frames": 65690
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 16.70682236428153,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.906024907602355,
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-      "utterance_id": "8825-292252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292252.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 145237
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.05542797818376,
-      "end_time": 32.0,
-      "duration": 4.944572021816239,
-      "start_frame": 432886,
-      "duration_frames": 79113,
-      "overlap": false,
-      "utterance_id": "2997-163246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2997-163246.flac |",
-      "real_speaker_id": "2997",
-      "position_frames": 52588
-    }
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "2997"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052564.json b/conversations/conv_052564.json
deleted file mode 100644
index a0d12bd5949dd22d4f19441f5dcc8e6a072eee8a..0000000000000000000000000000000000000000
--- a/conversations/conv_052564.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89164.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 88517
-    },
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-      "utterance_id": "4993-40677",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4993-40677.flac |",
-      "real_speaker_id": "4993",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.14376805861676,
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-      "utterance_id": "1958-144503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 168062
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.771376465786062,
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-      "duration": 4.228623534213938,
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-      "utterance_id": "7423-89169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7423-89169.flac |",
-      "real_speaker_id": "7423",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 6.073516501065809,
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "duration": 0.6645496711768046,
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-      "speaker_id": "7423"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052568.json b/conversations/conv_052568.json
deleted file mode 100644
index 7f4c9171d0846c314f5d9290f356b75bc95f6bb9..0000000000000000000000000000000000000000
--- a/conversations/conv_052568.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.785067247157716,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "duration": 4.993253219711798,
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-      "utterance_id": "92-6488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
-      "real_speaker_id": "92",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2196-170379.flac |",
-      "real_speaker_id": "2196",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
-      "real_speaker_id": "92",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "348",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2196-170151",
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-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "speaker_id": "92"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2196/laugh/0037.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/348/laugh/0033.wav",
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-      "speaker_id": "348"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052572.json b/conversations/conv_052572.json
deleted file mode 100644
index d532f6cc70c0cf8a561651b920cd1c488b1d2da5..0000000000000000000000000000000000000000
--- a/conversations/conv_052572.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.92956114374838,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4681",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_052579.json b/conversations/conv_052579.json
deleted file mode 100644
index cb9879740f69c44b307149d8eb2bdba98d221727..0000000000000000000000000000000000000000
--- a/conversations/conv_052579.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "7331-86025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86025.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 0
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-      "real_speaker_id": "7331",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6346-60781.flac |",
-      "real_speaker_id": "6346",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/899-126233.flac |",
-      "real_speaker_id": "899",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.40707651180803,
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-      "utterance_id": "7331-86027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7331-86027.flac |",
-      "real_speaker_id": "7331",
-      "position_frames": 93411
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "start_time": 27.76416484973693,
-      "speaker_id": "899"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052580.json b/conversations/conv_052580.json
deleted file mode 100644
index b6a27c13c69b8dcf07ab4c50392e4559ab4e57ae..0000000000000000000000000000000000000000
--- a/conversations/conv_052580.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.59935069749304,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3717-178149.flac |",
-      "real_speaker_id": "3717",
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-      "real_speaker_id": "3717",
-      "position_frames": 0
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-      "position_frames": 188968
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1681/laugh/0011.wav",
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-      "start_time": 27.71358651381836,
-      "speaker_id": "1681"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052587.json b/conversations/conv_052587.json
deleted file mode 100644
index 1746ac842676590b08dc70839eb90694afa0e4f3..0000000000000000000000000000000000000000
--- a/conversations/conv_052587.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "7384",
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052590.json b/conversations/conv_052590.json
deleted file mode 100644
index 29a40e0f1fd4d8ed050362be391f4e014613c3c8..0000000000000000000000000000000000000000
--- a/conversations/conv_052590.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.093480204478013,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5661-32892.flac |",
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-      "real_speaker_id": "8677",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8677-246948.flac |",
-      "real_speaker_id": "8677",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
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-      "start_time": 6.248156079364899,
-      "speaker_id": "8677"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5661/laugh/0060.wav",
-      "duration": 1.28,
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-      "event_class": "laugh",
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-      "start_time": 17.60251928621823,
-      "speaker_id": "8677"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052591.json b/conversations/conv_052591.json
deleted file mode 100644
index 01ef9e84d6402dd4168db43b6664c03bd54c599d..0000000000000000000000000000000000000000
--- a/conversations/conv_052591.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.5473084616432864,
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-      "utterance_id": "6009-57643",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57643.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-173230.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6009-57646.flac |",
-      "real_speaker_id": "6009",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-9919.flac |",
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-      "real_speaker_id": "3807",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 65477
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3866-173230.flac |",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052596.json b/conversations/conv_052596.json
deleted file mode 100644
index 4b3d43ca9555dc3a48f023def1a3e79a9ac3b7f5..0000000000000000000000000000000000000000
--- a/conversations/conv_052596.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-185488.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "2001-144499",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
-      "position_frames": 126662
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4226-185488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4226-185488.flac |",
-      "real_speaker_id": "4226",
-      "position_frames": 98295
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.046584070389372,
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-      "utterance_id": "8531-282933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
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-      "position_frames": 90471
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  ],
-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2001/laugh/0059.wav",
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-    {
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-      "speaker_id": "4226"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052600.json b/conversations/conv_052600.json
deleted file mode 100644
index 4ce053eab6c3f34f9d134bbcd3fbc0ce32ed5157..0000000000000000000000000000000000000000
--- a/conversations/conv_052600.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2553-163728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163728.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163728.flac |",
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-      "position_frames": 71398
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "2156",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_052607.json b/conversations/conv_052607.json
deleted file mode 100644
index 0f0248dc281aae3194b22dfa9416904296cabbf4..0000000000000000000000000000000000000000
--- a/conversations/conv_052607.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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\ No newline at end of file
diff --git a/conversations/conv_052611.json b/conversations/conv_052611.json
deleted file mode 100644
index 768ad1cda43fe987d1fa03870d11ff9bbf59a19a..0000000000000000000000000000000000000000
--- a/conversations/conv_052611.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_052616.json b/conversations/conv_052616.json
deleted file mode 100644
index b42dc5b7ba227c76528810e82cad39426a10d828..0000000000000000000000000000000000000000
--- a/conversations/conv_052616.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
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-      "start_time": 20.389100790884246,
-      "speaker_id": "1638"
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-      "event_class": "laugh",
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-      "start_time": 25.360816300638685,
-      "speaker_id": "7780"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052620.json b/conversations/conv_052620.json
deleted file mode 100644
index a7b6b9aa9291e20547dc82b107a21e5e8fe26a38..0000000000000000000000000000000000000000
--- a/conversations/conv_052620.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "984-137154",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/984-137154.flac |",
-      "real_speaker_id": "984",
-      "position_frames": 0
-    },
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-      "speaker_id": 2,
-      "start_time": 6.512710799286832,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-271808.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 77150
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "7826",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.983415312315948,
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-      "utterance_id": "7826-271808",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7826-271808.flac |",
-      "real_speaker_id": "7826",
-      "position_frames": 63766
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.336023999925594,
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_052636.json b/conversations/conv_052636.json
deleted file mode 100644
index 5fb3a805cb542bb2f236389031e7a6173ec3b0a6..0000000000000000000000000000000000000000
--- a/conversations/conv_052636.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-12956.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-57179.flac |",
-      "real_speaker_id": "4331",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.10066384787954,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-11266.flac |",
-      "real_speaker_id": "243",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4331-57180.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_052641.json b/conversations/conv_052641.json
deleted file mode 100644
index 9cdefe0313b6f183d0398fae21af24bd191bf8b0..0000000000000000000000000000000000000000
--- a/conversations/conv_052641.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1731-142320.flac |",
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-      "position_frames": 0
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
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-      "segment_id": "seg0005",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_052646.json b/conversations/conv_052646.json
deleted file mode 100644
index bf5b79a8d2a655157f21ea69bfe4d2b7eb8edb6f..0000000000000000000000000000000000000000
--- a/conversations/conv_052646.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7640-111784",
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-    {
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 24.79548710063733,
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-      "utterance_id": "7026-86941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86941.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.187597964230978,
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-      "utterance_id": "7026-86943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7026-86943.flac |",
-      "real_speaker_id": "7026",
-      "position_frames": 0
-    }
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7220/laugh/0087.wav",
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-      "event_class": "cough",
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-      "duration": 1.0433832174851925,
-      "start_time": 23.554785744136392,
-      "speaker_id": "7026"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052650.json b/conversations/conv_052650.json
deleted file mode 100644
index 5f3f1779e6b1dc29de646b5083303049a9db6b2f..0000000000000000000000000000000000000000
--- a/conversations/conv_052650.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.12545652398474,
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-      "duration_frames": 82007,
-      "overlap": false,
-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.4846178127671905,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 82007
-    },
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-      "speaker_id": 2,
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-      "duration_frames": 62742,
-      "overlap": false,
-      "utterance_id": "466-134185",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/466-134185.flac |",
-      "real_speaker_id": "466",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.218796943959024,
-      "end_time": 23.69587540248954,
-      "duration": 6.477078458530518,
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-      "overlap": false,
-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 169496
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.478136069433354,
-      "end_time": 30.60222168098626,
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-      "overlap": false,
-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.438107705259544,
-      "end_time": 32.0,
-      "duration": 0.5618922947404563,
-      "start_frame": 503009,
-      "duration_frames": 8990,
-      "overlap": false,
-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 273129
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "foreground_events": [
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-      "duration": 1.28,
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-      "speaker_id": "7609"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052657.json b/conversations/conv_052657.json
deleted file mode 100644
index 18c3788c1a6ec43ee736199a796cb5acee1fb87f..0000000000000000000000000000000000000000
--- a/conversations/conv_052657.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "8169-118200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.2887798423812207,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3830-12535.flac |",
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-      "utterance_id": "3547-156970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-156970.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.65103991036219,
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-      "utterance_id": "8169-118202",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118202.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.422419912057087,
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-      "overlap": false,
-      "utterance_id": "3547-8363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-8363.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.67302437642793,
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-      "utterance_id": "8169-118200",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8169-118200.flac |",
-      "real_speaker_id": "8169",
-      "position_frames": 56358
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-      "start_time": 0,
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052661.json b/conversations/conv_052661.json
deleted file mode 100644
index 035fc49d64e7c8d71f151e31b88e6191b4de8268..0000000000000000000000000000000000000000
--- a/conversations/conv_052661.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.395169034072488,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4699-12472",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
-      "real_speaker_id": "4699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6356-271890",
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-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
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-      "real_speaker_id": "4699",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6356-271889",
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-      "position_frames": 0
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-    {
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052677.json b/conversations/conv_052677.json
deleted file mode 100644
index b8425400c410b3c03c1b0f132f496ee7285bd12b..0000000000000000000000000000000000000000
--- a/conversations/conv_052677.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3411-130135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3411-130135.flac |",
-      "real_speaker_id": "3411",
-      "position_frames": 0
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-    {
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-      "segment_id": "seg0002",
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-      "position_frames": 54132
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-      "segment_id": "seg0003",
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-      "duration": 1.36,
-      "start_time": 30.64,
-      "speaker_id": "3411"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052682.json b/conversations/conv_052682.json
deleted file mode 100644
index 7b14e815c119c3f0b134b309dc8967dd74d897c3..0000000000000000000000000000000000000000
--- a/conversations/conv_052682.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-128001.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4133-6541.flac |",
-      "real_speaker_id": "4133",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/46-127996.flac |",
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-      "position_frames": 103294
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_052694.json b/conversations/conv_052694.json
deleted file mode 100644
index 187aba4bbd46c2200c9b66b56ae30c49e4bf2eb1..0000000000000000000000000000000000000000
--- a/conversations/conv_052694.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7463-96494.flac |",
-      "real_speaker_id": "7463",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-  "foreground_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "7463"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052698.json b/conversations/conv_052698.json
deleted file mode 100644
index c70976ed449567cfa7a0159c6a00af0fc98805b6..0000000000000000000000000000000000000000
--- a/conversations/conv_052698.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8415-283469",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
-      "real_speaker_id": "8415",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8415-283469.flac |",
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-      "real_speaker_id": "7555",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "8415",
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-    {
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-      "position_frames": 81500
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_052703.json b/conversations/conv_052703.json
deleted file mode 100644
index 6959afa1920302ae98657bf95224f240126a6ffa..0000000000000000000000000000000000000000
--- a/conversations/conv_052703.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-114963.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1265-135635.flac |",
-      "real_speaker_id": "1265",
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-    {
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-      "real_speaker_id": "1265",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-92170.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052704.json b/conversations/conv_052704.json
deleted file mode 100644
index c9ce41461512cf1d2ae0a7c605eaad7f3ceb443f..0000000000000000000000000000000000000000
--- a/conversations/conv_052704.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3346-7599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-7599.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.943093181349083,
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-      "utterance_id": "1413-121799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1413-121799.flac |",
-      "real_speaker_id": "1413",
-      "position_frames": 86064
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.92795876982931,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-7599.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 107368
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-      "speaker_id": 0,
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-      "utterance_id": "3346-7599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-7599.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 212103
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3346-158751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-158751.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
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-      "duration": 1.48,
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052708.json b/conversations/conv_052708.json
deleted file mode 100644
index 2b7c1070092a07f7d68031ea6670baa2cecbc0ab..0000000000000000000000000000000000000000
--- a/conversations/conv_052708.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134804.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28495.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1365-134830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134830.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4706/laugh/0130.wav",
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-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052712.json b/conversations/conv_052712.json
deleted file mode 100644
index 7ed7e249b970772feb4ac7df5e944f92b3270647..0000000000000000000000000000000000000000
--- a/conversations/conv_052712.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.93939701197766,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3757-134143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3757-134143.flac |",
-      "real_speaker_id": "3757",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.354089627225427,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5438.flac |",
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-    {
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-      "real_speaker_id": "4263",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052715.json b/conversations/conv_052715.json
deleted file mode 100644
index 063f44e546fdeaecc6ac80530eacb3967c28bd1c..0000000000000000000000000000000000000000
--- a/conversations/conv_052715.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.328619872034993,
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-      "start_frame": 0,
-      "duration_frames": 69257,
-      "overlap": false,
-      "utterance_id": "3738-176683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3738-176683.flac |",
-      "real_speaker_id": "3738",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052724.json b/conversations/conv_052724.json
deleted file mode 100644
index 3aecd942c8f5e913fe527d9043db8a9ede3e8c67..0000000000000000000000000000000000000000
--- a/conversations/conv_052724.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5840-54188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54188.flac |",
-      "real_speaker_id": "5840",
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-      "real_speaker_id": "5840",
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\ No newline at end of file
diff --git a/conversations/conv_052728.json b/conversations/conv_052728.json
deleted file mode 100644
index 0999639966832d8ecdced3837d340ea4d91aabbf..0000000000000000000000000000000000000000
--- a/conversations/conv_052728.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_052732.json b/conversations/conv_052732.json
deleted file mode 100644
index 8a35a4416648480e6e1ef3492d4d1cee8f714efb..0000000000000000000000000000000000000000
--- a/conversations/conv_052732.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6945/laugh/0073.wav",
-      "duration": 1.18,
-      "start_time": 28.72232013861396,
-      "speaker_id": "6945"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052742.json b/conversations/conv_052742.json
deleted file mode 100644
index c738d53db2a6b7f839cd67f6fd2d0bf4807b0004..0000000000000000000000000000000000000000
--- a/conversations/conv_052742.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.201968210731372,
-      "duration": 5.201968210731372,
-      "start_frame": 0,
-      "duration_frames": 83231,
-      "overlap": false,
-      "utterance_id": "392-131210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/392-131210.flac |",
-      "real_speaker_id": "392",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.037824632761405,
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-      "duration": 5.316784748293808,
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-      "overlap": true,
-      "utterance_id": "2292-150689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150689.flac |",
-      "real_speaker_id": "2292",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8163-274549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8163-274549.flac |",
-      "real_speaker_id": "8163",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.286639963174355,
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-      "utterance_id": "2292-150679",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150679.flac |",
-      "real_speaker_id": "2292",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.93599177323357,
-      "end_time": 27.42248204909838,
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-      "overlap": false,
-      "utterance_id": "2292-150689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150689.flac |",
-      "real_speaker_id": "2292",
-      "position_frames": 85068
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.751781120782255,
-      "end_time": 32.0,
-      "duration": 4.248218879217745,
-      "start_frame": 444028,
-      "duration_frames": 67971,
-      "overlap": false,
-      "utterance_id": "8163-274549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8163-274549.flac |",
-      "real_speaker_id": "8163",
-      "position_frames": 62076
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2292/laugh/0027.wav",
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-    },
-    {
-      "event_class": "laugh",
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-      "duration": 0.6617618990431591,
-      "start_time": 15.614239651950333,
-      "speaker_id": "8163"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2292/laugh/0013.wav",
-      "duration": 1.0043947571694434,
-      "start_time": 26.139286960387615,
-      "speaker_id": "2292"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8163/laugh/0075.wav",
-      "duration": 1.0,
-      "start_time": 30.5530003300002,
-      "speaker_id": "8163"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052745.json b/conversations/conv_052745.json
deleted file mode 100644
index 35799c247a2e8fcae8b5404936c61d34e8b38a45..0000000000000000000000000000000000000000
--- a/conversations/conv_052745.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "3588-186215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-186215.flac |",
-      "real_speaker_id": "3588",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.036262776078018,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-48224.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5860-64970.flac |",
-      "real_speaker_id": "5860",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3588-54099.flac |",
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-      "speaker_id": 0,
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-      "utterance_id": "5860-64970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5860-64970.flac |",
-      "real_speaker_id": "5860",
-      "position_frames": 58321
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "6583-48224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6583-48224.flac |",
-      "real_speaker_id": "6583",
-      "position_frames": 73326
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.237555609211878,
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-      "duration": 0.7624443907881222,
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-      "overlap": false,
-      "utterance_id": "5860-72190",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5860-72190.flac |",
-      "real_speaker_id": "5860",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5860/laugh/0041.wav",
-      "duration": 1.12,
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-    {
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-      "duration": 0.4693401009402407,
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-      "speaker_id": "5860"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3588/cough/0026.wav",
-      "duration": 1.2004166658251894,
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-      "speaker_id": "3588"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5860/laugh/0026.wav",
-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "5860"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052749.json b/conversations/conv_052749.json
deleted file mode 100644
index 63cc861035f67857b92770371eabd0e7650b6c27..0000000000000000000000000000000000000000
--- a/conversations/conv_052749.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.67414704826307,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
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-      "duration": 3.4474695225452674,
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-      "overlap": false,
-      "utterance_id": "1445-139387",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139387.flac |",
-      "real_speaker_id": "1445",
-      "position_frames": 0
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-    {
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7079-2333",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7079-2333.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.416152475467015,
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-      "utterance_id": "1445-139404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1445-139404.flac |",
-      "real_speaker_id": "1445",
-      "position_frames": 67987
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-    {
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-      "utterance_id": "4267-78186",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4267-78186.flac |",
-      "real_speaker_id": "4267",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-      "speaker_id": "1445"
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "4267"
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-      "speaker_id": "4267"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052753.json b/conversations/conv_052753.json
deleted file mode 100644
index 5d590ff9c1748cfa44962e1e9293b9fd886ece43..0000000000000000000000000000000000000000
--- a/conversations/conv_052753.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1699-141159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1699-141159.flac |",
-      "real_speaker_id": "1699",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "5636",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "real_speaker_id": "1699",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052754.json b/conversations/conv_052754.json
deleted file mode 100644
index 1d1f1da7e1aaf27d2448f7fddf1be6b4d7e468b3..0000000000000000000000000000000000000000
--- a/conversations/conv_052754.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "6209",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34600.flac |",
-      "real_speaker_id": "6209",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278849.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34601.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 59134
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-      "segment_id": "seg0005",
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-      "utterance_id": "6399-278844",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6399-278844.flac |",
-      "real_speaker_id": "6399",
-      "position_frames": 0
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_052765.json b/conversations/conv_052765.json
deleted file mode 100644
index b369019db4618800aa2902cc927ece88f0b36c70..0000000000000000000000000000000000000000
--- a/conversations/conv_052765.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-57833.flac |",
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-      "utterance_id": "8619-291374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8619-291374.flac |",
-      "real_speaker_id": "8619",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_052768.json b/conversations/conv_052768.json
deleted file mode 100644
index 964d8a7346c1ceeabd7f2a2ce5df5c611f67ca58..0000000000000000000000000000000000000000
--- a/conversations/conv_052768.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "3909",
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-    {
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-      "speaker_id": 1,
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-}
\ No newline at end of file
diff --git a/conversations/conv_052769.json b/conversations/conv_052769.json
deleted file mode 100644
index 631e982af71d1821349fd95d90337d80fcca20ed..0000000000000000000000000000000000000000
--- a/conversations/conv_052769.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2136-5147.flac |",
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-      "real_speaker_id": "4741",
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-    {
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-      "position_frames": 0
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_052773.json b/conversations/conv_052773.json
deleted file mode 100644
index ea14cc6b19fcbabf1be3a26e99d9e18f72b08895..0000000000000000000000000000000000000000
--- a/conversations/conv_052773.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "2499",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7933-112597.flac |",
-      "real_speaker_id": "7933",
-      "position_frames": 65716
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2499-156154.flac |",
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-      "position_frames": 0
-    }
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_052778.json b/conversations/conv_052778.json
deleted file mode 100644
index 1c6bdaebfda6e940930028f692a85e97c04c2cb4..0000000000000000000000000000000000000000
--- a/conversations/conv_052778.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 88062
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3503-127083.flac |",
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-      "speaker_id": "3503"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052786.json b/conversations/conv_052786.json
deleted file mode 100644
index 672d82264484cd88de003b39bbfdb98cae6e3340..0000000000000000000000000000000000000000
--- a/conversations/conv_052786.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2979-156237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156237.flac |",
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-    {
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-      "real_speaker_id": "5671",
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-      "event_class": "cough",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5671/laugh/0094.wav",
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-      "start_time": 30.9103074867676,
-      "speaker_id": "5671"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052787.json b/conversations/conv_052787.json
deleted file mode 100644
index 573ce67664d05cf508c5dd35aabf8f446218aa38..0000000000000000000000000000000000000000
--- a/conversations/conv_052787.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
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\ No newline at end of file
diff --git a/conversations/conv_052790.json b/conversations/conv_052790.json
deleted file mode 100644
index e401f4c88b8087bd68c0866730abbf2da0ad4a75..0000000000000000000000000000000000000000
--- a/conversations/conv_052790.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.215319251002345,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4586-19665",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-19665.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-61776.flac |",
-      "real_speaker_id": "4586",
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-      "speaker_id": 0,
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-      "utterance_id": "4586-61776",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4586-61776.flac |",
-      "real_speaker_id": "4586",
-      "position_frames": 78366
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352271.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052797.json b/conversations/conv_052797.json
deleted file mode 100644
index d845f46813069feb9b9fbd419a7d9d49de483f9a..0000000000000000000000000000000000000000
--- a/conversations/conv_052797.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "1100",
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\ No newline at end of file
diff --git a/conversations/conv_052800.json b/conversations/conv_052800.json
deleted file mode 100644
index f4246fab2280e49458835b9d8ed00eb454b61bbd..0000000000000000000000000000000000000000
--- a/conversations/conv_052800.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246974.flac |",
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-      "position_frames": 154684
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-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3132/laugh/0044.wav",
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-      "start_time": 21.33044690473735,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8778/cough/0073.wav",
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-      "speaker_id": "8778"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052801.json b/conversations/conv_052801.json
deleted file mode 100644
index afb77b7cd7fe6542655cfb387510f32242a98e3a..0000000000000000000000000000000000000000
--- a/conversations/conv_052801.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
-      "end_time": 4.131883455057418,
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-      "overlap": false,
-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.12342183630638,
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-      "duration": 6.347582537695129,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 66110
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.745937557785997,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8396-120280.flac |",
-      "real_speaker_id": "8396",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.297293642604803,
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-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 99162
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 3.1035015634635386,
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-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 167671
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3082/laugh/0080.wav",
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-      "start_time": 30.88,
-      "speaker_id": "3082"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052817.json b/conversations/conv_052817.json
deleted file mode 100644
index 896c9c70e085bfadfa6660d6a34df29a586b8ae0..0000000000000000000000000000000000000000
--- a/conversations/conv_052817.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.11936160473327,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122647.flac |",
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-      "position_frames": 0
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
-      "real_speaker_id": "245",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.029944351079827,
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-      "overlap": false,
-      "utterance_id": "5949-65530",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65530.flac |",
-      "real_speaker_id": "5949",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/245-122648.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_052821.json b/conversations/conv_052821.json
deleted file mode 100644
index 61e0ff3ab14f000f24fc1a074a6904353709f3ee..0000000000000000000000000000000000000000
--- a/conversations/conv_052821.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-142924.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/133-143240.flac |",
-      "real_speaker_id": "133",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_052837.json b/conversations/conv_052837.json
deleted file mode 100644
index f42e06729c6c81e40c4a97c0609e886ccdee4e40..0000000000000000000000000000000000000000
--- a/conversations/conv_052837.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "5756-50266",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_2.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5756/cough/0034.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7828/laugh/0022.wav",
-      "duration": 1.2,
-      "start_time": 15.075946818842583,
-      "speaker_id": "7828"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5756/laugh/0035.wav",
-      "duration": 1.3313833048326646,
-      "start_time": 24.06803010469732,
-      "speaker_id": "5756"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5756/cough/0080.wav",
-      "duration": 0.46766306291903315,
-      "start_time": 27.010744283729842,
-      "speaker_id": "5756"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/454/laugh/0111.wav",
-      "duration": 0.902520238330786,
-      "start_time": 29.99402837302814,
-      "speaker_id": "454"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052840.json b/conversations/conv_052840.json
deleted file mode 100644
index 9e2478a19bf0c19e1c73ca48a7021952d8bc1a50..0000000000000000000000000000000000000000
--- a/conversations/conv_052840.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.5615009042888834,
-      "duration": 3.5615009042888834,
-      "start_frame": 0,
-      "duration_frames": 56984,
-      "overlap": false,
-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.750524219805094,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-80652.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.0419722329836,
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-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 56984
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.211498328541115,
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-      "overlap": true,
-      "utterance_id": "7198-76169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7198-76169.flac |",
-      "real_speaker_id": "7198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.24289052030162,
-      "end_time": 25.01020782409082,
-      "duration": 3.7673173037891985,
-      "start_frame": 339886,
-      "duration_frames": 60277,
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-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 138639
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.649824776268243,
-      "end_time": 29.21867299340557,
-      "duration": 3.5688482171373277,
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-      "duration_frames": 57101,
-      "overlap": false,
-      "utterance_id": "8465-246943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246943.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.636573747737792,
-      "end_time": 32.0,
-      "duration": 1.363426252262208,
-      "start_frame": 490185,
-      "duration_frames": 21814,
-      "overlap": false,
-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 198916
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_0.wav",
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/886/laugh/0097.wav",
-      "duration": 1.212768725774735,
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-      "speaker_id": "886"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052856.json b/conversations/conv_052856.json
deleted file mode 100644
index b07cb38a0a1233e3ba00f2269aa4e517d8448140..0000000000000000000000000000000000000000
--- a/conversations/conv_052856.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "444-138080",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-138080.flac |",
-      "real_speaker_id": "444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.2602064702313065,
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-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 0
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-      "utterance_id": "444-139735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-139735.flac |",
-      "real_speaker_id": "444",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.000602712725126,
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-      "duration": 5.765525261251535,
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-      "overlap": false,
-      "utterance_id": "1653-142374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142374.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.78953260551308,
-      "end_time": 29.978690140875656,
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-      "duration_frames": 83026,
-      "overlap": false,
-      "utterance_id": "7383-95441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7383-95441.flac |",
-      "real_speaker_id": "7383",
-      "position_frames": 94424
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.497501690909115,
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-      "duration": 1.5024983090908854,
-      "start_frame": 487960,
-      "duration_frames": 24039,
-      "overlap": false,
-      "utterance_id": "444-129208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/444-129208.flac |",
-      "real_speaker_id": "444",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/444/laugh/0059.wav",
-      "duration": 1.52,
-      "start_time": 0,
-      "speaker_id": "444"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052857.json b/conversations/conv_052857.json
deleted file mode 100644
index 5da8014a00483218fd8ca7ca66c8b682d3fa8ff0..0000000000000000000000000000000000000000
--- a/conversations/conv_052857.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.922383713485986,
-      "duration": 6.922383713485986,
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-      "overlap": false,
-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.0647862948740165,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 110758
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-    {
-      "segment_id": "seg0003",
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-      "overlap": true,
-      "utterance_id": "2039-141208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141208.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 176626
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "2039-141209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2039-141209.flac |",
-      "real_speaker_id": "2039",
-      "position_frames": 54495
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-  "background_events": [
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-  "foreground_events": [
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6962/laugh/0032.wav",
-      "duration": 1.14,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.52,
-      "start_time": 16.275027788182815,
-      "speaker_id": "2039"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2039/cough/0108.wav",
-      "duration": 0.4890732833206445,
-      "start_time": 18.5514108661225,
-      "speaker_id": "2039"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6962/cough/0016.wav",
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-      "speaker_id": "6962"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052860.json b/conversations/conv_052860.json
deleted file mode 100644
index 2ed94dcd5a84bbcd1dcf740ced2e5f413a6f2558..0000000000000000000000000000000000000000
--- a/conversations/conv_052860.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.453287994676913,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6777-76694",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6777-76694.flac |",
-      "real_speaker_id": "6777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "7484",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_052876.json b/conversations/conv_052876.json
deleted file mode 100644
index e6101b19025495086b56d35e168ad4ef0d9e9cb1..0000000000000000000000000000000000000000
--- a/conversations/conv_052876.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.342650843214933,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7892-295954.flac |",
-      "real_speaker_id": "7892",
-      "position_frames": 0
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-      "start_time": 7.038066311932388,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7892-295954.flac |",
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-      "position_frames": 107544
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-      "speaker_id": 1,
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-      "utterance_id": "1116-132851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132851.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.016012175720178,
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-      "utterance_id": "7892-294520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7892-294520.flac |",
-      "real_speaker_id": "7892",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_052883.json b/conversations/conv_052883.json
deleted file mode 100644
index c2aa0d421c3a138448efd520affe08ad9c111f51..0000000000000000000000000000000000000000
--- a/conversations/conv_052883.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6967-50152.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3851-9210.flac |",
-      "real_speaker_id": "3851",
-      "position_frames": 144777
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-      "utterance_id": "8778-246984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246984.flac |",
-      "real_speaker_id": "8778",
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-    {
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 28.366653190222042,
-      "speaker_id": "8778"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052884.json b/conversations/conv_052884.json
deleted file mode 100644
index bef8aae57b9c2e4f63ac763c3fc8077b53c1f968..0000000000000000000000000000000000000000
--- a/conversations/conv_052884.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3547-156969",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-156969.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-14653.flac |",
-      "real_speaker_id": "1212",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3547-8363.flac |",
-      "real_speaker_id": "3547",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "1212",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "3547",
-      "position_frames": 0
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-      "real_speaker_id": "4859",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052892.json b/conversations/conv_052892.json
deleted file mode 100644
index 2dfa373a55bebd72a65dbe7dd21bd4ac557a37c6..0000000000000000000000000000000000000000
--- a/conversations/conv_052892.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_052895.json b/conversations/conv_052895.json
deleted file mode 100644
index cf97711427d9d782464a5ca60fcced02584a58c7..0000000000000000000000000000000000000000
--- a/conversations/conv_052895.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "3100",
-      "position_frames": 0
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-      "real_speaker_id": "274",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8014-280382.flac |",
-      "real_speaker_id": "8014",
-      "position_frames": 63326
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_052899.json b/conversations/conv_052899.json
deleted file mode 100644
index d3314c1c546ca7ee43fcc0ac0995b8ddbf3edddb..0000000000000000000000000000000000000000
--- a/conversations/conv_052899.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "2775",
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-      "real_speaker_id": "1819",
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-      "start_time": 30.72,
-      "speaker_id": "147"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052905.json b/conversations/conv_052905.json
deleted file mode 100644
index f012ccb9ef0836a4f125f1086ff80756dbb70bd9..0000000000000000000000000000000000000000
--- a/conversations/conv_052905.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
-      "real_speaker_id": "5980",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1723-141149.flac |",
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5980/laugh/0059.wav",
-      "duration": 1.1009146132767855,
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-}
\ No newline at end of file
diff --git a/conversations/conv_052909.json b/conversations/conv_052909.json
deleted file mode 100644
index 8e0cd726cd0451b309029f1c461d0051365606ac..0000000000000000000000000000000000000000
--- a/conversations/conv_052909.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.70059372566226,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.38389843191854,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
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-      "utterance_id": "7131-92815",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7131-92815.flac |",
-      "real_speaker_id": "7131",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.628235069672797,
-      "end_time": 20.655100391649633,
-      "duration": 6.026865321976836,
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-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 79108
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.38745118120564,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 61140
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4433-16802.flac |",
-      "real_speaker_id": "4433",
-      "position_frames": 124289
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052912.json b/conversations/conv_052912.json
deleted file mode 100644
index 0f28bba6fd996d6970c78a075569a2149fb2ccc9..0000000000000000000000000000000000000000
--- a/conversations/conv_052912.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2368-157054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157054.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157066.flac |",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5894-64095.flac |",
-      "real_speaker_id": "5894",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6925-80680.flac |",
-      "real_speaker_id": "6925",
-      "position_frames": 80138
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.1615306807401,
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-      "utterance_id": "2368-157056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2368-157056.flac |",
-      "real_speaker_id": "2368",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.325430769138187,
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052913.json b/conversations/conv_052913.json
deleted file mode 100644
index 28957f4718adc310bebb405a067abfb533b63e1a..0000000000000000000000000000000000000000
--- a/conversations/conv_052913.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "3990-31915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31915.flac |",
-      "real_speaker_id": "3990",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "4039",
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-      "utterance_id": "3990-31892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31892.flac |",
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-    {
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "3990",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3990-31915.flac |",
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-  "foreground_events": [
-    {
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-      "speaker_id": "3990"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052925.json b/conversations/conv_052925.json
deleted file mode 100644
index 6500740fef0144693805b33da2baf00e94917def..0000000000000000000000000000000000000000
--- a/conversations/conv_052925.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 30.88541003236782,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "93-126209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/93-126209.flac |",
-      "real_speaker_id": "93",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0003",
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\ No newline at end of file
diff --git a/conversations/conv_052929.json b/conversations/conv_052929.json
deleted file mode 100644
index 0bbd7f9386bfb5bc102af3e564923bd3336af64b..0000000000000000000000000000000000000000
--- a/conversations/conv_052929.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "4576",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6981-70843.flac |",
-      "real_speaker_id": "6981",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_052933.json b/conversations/conv_052933.json
deleted file mode 100644
index c8cc560d10447f216a6da6820eeabd11744b98cb..0000000000000000000000000000000000000000
--- a/conversations/conv_052933.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.891662946712295,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1746",
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-      "segment_id": "seg0005",
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-      "utterance_id": "3244-10691",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-10691.flac |",
-      "real_speaker_id": "3244",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052938.json b/conversations/conv_052938.json
deleted file mode 100644
index 355d9a1cf9e7d6f81c5954db45e529a8f16b5dff..0000000000000000000000000000000000000000
--- a/conversations/conv_052938.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.568336013568878,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "7247-77778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7247-77778.flac |",
-      "real_speaker_id": "7247",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
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-      "segment_id": "seg0005",
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-      "real_speaker_id": "8875",
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-      "segment_id": "seg0006",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_052944.json b/conversations/conv_052944.json
deleted file mode 100644
index 618600e892919333839c8ece35d8014d6c89db3a..0000000000000000000000000000000000000000
--- a/conversations/conv_052944.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/278-127215.flac |",
-      "real_speaker_id": "278",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052945.json b/conversations/conv_052945.json
deleted file mode 100644
index 3762ae212df02b40b5b45782cd18847b963ccb4a..0000000000000000000000000000000000000000
--- a/conversations/conv_052945.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41798.flac |",
-      "real_speaker_id": "5480",
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-      "real_speaker_id": "2671",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "359-133630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/359-133630.flac |",
-      "real_speaker_id": "359",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_052948.json b/conversations/conv_052948.json
deleted file mode 100644
index e844deedea22cb7f083171a241acc7de8fe0d74c..0000000000000000000000000000000000000000
--- a/conversations/conv_052948.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7316-10642.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-6500.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.576384100919007,
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-      "utterance_id": "614-161065",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/614-161065.flac |",
-      "real_speaker_id": "614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.03698785850589,
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-      "utterance_id": "6540-62512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6540-62512.flac |",
-      "real_speaker_id": "6540",
-      "position_frames": 97248
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "duration": 1.08,
-      "start_time": 16.010796048735894,
-      "speaker_id": "614"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052952.json b/conversations/conv_052952.json
deleted file mode 100644
index dffd82e544eef2a29daf023a6ce001a51be6c34a..0000000000000000000000000000000000000000
--- a/conversations/conv_052952.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.45511008045126,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1417-1539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123268.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1536.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123267.flac |",
-      "real_speaker_id": "882",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/882-123266.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1417-1539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1417-1539.flac |",
-      "real_speaker_id": "1417",
-      "position_frames": 93371
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052964.json b/conversations/conv_052964.json
deleted file mode 100644
index 40b583bd9bd153bd0ad22c3dd42a17d95b4f0340..0000000000000000000000000000000000000000
--- a/conversations/conv_052964.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.402524508277523,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.182607782441214,
-      "duration": 6.182607782441214,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3790-39761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-39761.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.449789257857368,
-      "end_time": 13.52850937968709,
-      "duration": 6.078720121829723,
-      "start_frame": 119196,
-      "duration_frames": 97259,
-      "overlap": false,
-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.908401600863161,
-      "end_time": 20.623705896494872,
-      "duration": 5.71530429563171,
-      "start_frame": 238534,
-      "duration_frames": 91444,
-      "overlap": false,
-      "utterance_id": "3790-140725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.210661712353478,
-      "end_time": 25.277818626539055,
-      "duration": 4.067156914185577,
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-      "duration_frames": 65074,
-      "overlap": false,
-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 97259
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.0349393099588,
-      "end_time": 31.402524508277523,
-      "duration": 5.367585198318723,
-      "start_frame": 416559,
-      "duration_frames": 85881,
-      "overlap": false,
-      "utterance_id": "3790-140725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3790-140725.flac |",
-      "real_speaker_id": "3790",
-      "position_frames": 91444
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
-      "duration": 14.329761384888673,
-      "start_time": 15.700203766918909
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_2.wav",
-      "duration": 1.0774603174603175,
-      "start_time": 13.801426373330598
-    },
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_7.wav",
-      "duration": 1.000907029478458,
-      "start_time": 24.68328912243769
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/laugh/0096.wav",
-      "duration": 1.66,
-      "start_time": 0,
-      "speaker_id": "3790"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/laugh/0101.wav",
-      "duration": 1.4,
-      "start_time": 13.468746642001278,
-      "speaker_id": "3790"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/cough/0022.wav",
-      "duration": 0.6493477044830797,
-      "start_time": 20.778121115102095,
-      "speaker_id": "3790"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3790/laugh/0108.wav",
-      "duration": 1.16,
-      "start_time": 24.659573473846624,
-      "speaker_id": "3790"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052968.json b/conversations/conv_052968.json
deleted file mode 100644
index c1b09af1e7cd3e4c8f8798ffaf0fdf176079b27d..0000000000000000000000000000000000000000
--- a/conversations/conv_052968.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.027943092824728,
-      "duration": 4.027943092824728,
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-      "overlap": false,
-      "utterance_id": "3094-136458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.269304175861697,
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-      "overlap": false,
-      "utterance_id": "36-16603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16603.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.46190057020033,
-      "end_time": 13.263184954039922,
-      "duration": 3.801284383839591,
-      "start_frame": 151390,
-      "duration_frames": 60820,
-      "overlap": true,
-      "utterance_id": "215-122798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-122798.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "36-16602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.498959986814313,
-      "end_time": 25.22696895053818,
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-      "utterance_id": "215-127369",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/215-127369.flac |",
-      "real_speaker_id": "215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.49336735546336,
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-      "duration": 3.6476328916482594,
-      "start_frame": 391893,
-      "duration_frames": 58362,
-      "overlap": true,
-      "utterance_id": "3094-136458",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3094-136458.flac |",
-      "real_speaker_id": "3094",
-      "position_frames": 64447
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.848064889987263,
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-      "duration": 2.1519351100127366,
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-      "overlap": false,
-      "utterance_id": "36-16602",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/36-16602.flac |",
-      "real_speaker_id": "36",
-      "position_frames": 108514
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
-      "duration": 19.036042612839868,
-      "start_time": 12.415957732126921
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
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-    {
-      "event_class": "Dog",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3094/laugh/0049.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.8943754387711278,
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-      "speaker_id": "36"
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/215/laugh/0015.wav",
-      "duration": 1.223598945000091,
-      "start_time": 21.726836191307306,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3094/laugh/0045.wav",
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-      "start_time": 28.304158943856,
-      "speaker_id": "3094"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052972.json b/conversations/conv_052972.json
deleted file mode 100644
index 6fa65fbd5833578beeba116d09716582a6aa6b8b..0000000000000000000000000000000000000000
--- a/conversations/conv_052972.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "17-362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-163403.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/17-362.flac |",
-      "real_speaker_id": "17",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "5287-39165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5287-39165.flac |",
-      "real_speaker_id": "5287",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.49215047174733,
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-      "duration_frames": 76632,
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-      "utterance_id": "1469-168608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-168608.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.726257248363748,
-      "end_time": 32.0,
-      "duration": 3.2737427516362523,
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-      "duration_frames": 52379,
-      "overlap": false,
-      "utterance_id": "5287-39165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5287-39165.flac |",
-      "real_speaker_id": "5287",
-      "position_frames": 88416
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_052979.json b/conversations/conv_052979.json
deleted file mode 100644
index 6991ea873de1edcd6a680822cbf2ad8e4cf2a8a4..0000000000000000000000000000000000000000
--- a/conversations/conv_052979.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8476-269293",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8476-269293.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-    {
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-    {
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-    {
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-      "duration": 0.8,
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-}
\ No newline at end of file
diff --git a/conversations/conv_052980.json b/conversations/conv_052980.json
deleted file mode 100644
index f2aa922b2105182b94b1a25a572df0f272cf9be7..0000000000000000000000000000000000000000
--- a/conversations/conv_052980.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "7140",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/123-25081.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72210.flac |",
-      "real_speaker_id": "7140",
-      "position_frames": 0
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-      "start_time": 14.545275766768864,
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-      "utterance_id": "5389-4861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
-      "real_speaker_id": "5389",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.356255022537123,
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-      "utterance_id": "7140-72205",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7140-72205.flac |",
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-      "position_frames": 109100
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-4861.flac |",
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-      "position_frames": 110826
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "speaker_id": "5389"
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-}
\ No newline at end of file
diff --git a/conversations/conv_052987.json b/conversations/conv_052987.json
deleted file mode 100644
index f6d416ab1ff466d89995b80b623eebbaaeae852c..0000000000000000000000000000000000000000
--- a/conversations/conv_052987.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112061.flac |",
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-      "real_speaker_id": "6378",
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-      "speaker_id": 2,
-      "start_time": 20.405544143622482,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7981-112056.flac |",
-      "real_speaker_id": "7981",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_052991.json b/conversations/conv_052991.json
deleted file mode 100644
index 0a6789602fd7ab1618060153cedc79ccdf4d692a..0000000000000000000000000000000000000000
--- a/conversations/conv_052991.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "7553",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-60017.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_052996.json b/conversations/conv_052996.json
deleted file mode 100644
index 3d2a003a8acfe49cb21b839afef7c35af42ca6cd..0000000000000000000000000000000000000000
--- a/conversations/conv_052996.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8324-286682.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 27.61652597250825,
-      "end_time": 32.0,
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-      "utterance_id": "3025-12971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3025-12971.flac |",
-      "real_speaker_id": "3025",
-      "position_frames": 153837
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-  ],
-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2834/laugh/0095.wav",
-      "duration": 1.34,
-      "start_time": 26.90143121298916,
-      "speaker_id": "2834"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2834/cough/0093.wav",
-      "duration": 1.0928847280159495,
-      "start_time": 24.88205538388425,
-      "speaker_id": "2834"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3025/cough/0003.wav",
-      "duration": 1.116572533172527,
-      "start_time": 29.831712124951057,
-      "speaker_id": "3025"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053000.json b/conversations/conv_053000.json
deleted file mode 100644
index 274906dc798042927112ab6581ee2a4c16a371b6..0000000000000000000000000000000000000000
--- a/conversations/conv_053000.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.695003874359688,
-      "duration": 4.695003874359688,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7134-67233",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7134-67233.flac |",
-      "real_speaker_id": "7134",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.967042822537816,
-      "end_time": 9.784579725971088,
-      "duration": 4.817536903433273,
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-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.300680886886576,
-      "end_time": 16.913734659550702,
-      "duration": 5.613053772664125,
-      "start_frame": 180810,
-      "duration_frames": 89808,
-      "overlap": false,
-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.015836537087736,
-      "end_time": 23.755412947684714,
-      "duration": 5.739576410596979,
-      "start_frame": 288253,
-      "duration_frames": 91833,
-      "overlap": false,
-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 77080
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.579517146934712,
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-      "duration": 6.0634980411227675,
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-      "utterance_id": "87-121553",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/87-121553.flac |",
-      "real_speaker_id": "87",
-      "position_frames": 89808
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 31.07465323009507,
-      "end_time": 32.0,
-      "duration": 0.9253467699049303,
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-      "duration_frames": 14805,
-      "overlap": false,
-      "utterance_id": "1813-142304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1813-142304.flac |",
-      "real_speaker_id": "1813",
-      "position_frames": 168913
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1813/laugh/0061.wav",
-      "duration": 1.0,
-      "start_time": 24.043684195664028,
-      "speaker_id": "1813"
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-      "event_class": "cough",
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-      "speaker_id": "87"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053007.json b/conversations/conv_053007.json
deleted file mode 100644
index 88f4648f12440440c786794f9dbcbf33f989dd39..0000000000000000000000000000000000000000
--- a/conversations/conv_053007.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.401212181367764,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7657-104717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
-      "real_speaker_id": "7657",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.7819765285210463,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139272.flac |",
-      "real_speaker_id": "1260",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.965070163268742,
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-      "utterance_id": "7657-104717",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
-      "real_speaker_id": "7657",
-      "position_frames": 66077
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.136781771049215,
-      "end_time": 23.389158521902576,
-      "duration": 6.252376750853362,
-      "start_frame": 274188,
-      "duration_frames": 100038,
-      "overlap": false,
-      "utterance_id": "1260-139272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139272.flac |",
-      "real_speaker_id": "1260",
-      "position_frames": 102912
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.093789145873373,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7657-104717.flac |",
-      "real_speaker_id": "7657",
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-      "segment_id": "seg0005",
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-      "utterance_id": "1260-139267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1260-139267.flac |",
-      "real_speaker_id": "1260",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_053011.json b/conversations/conv_053011.json
deleted file mode 100644
index 3f1eb34304436944944c245723d5e932ca9cc64c..0000000000000000000000000000000000000000
--- a/conversations/conv_053011.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4420-5802.flac |",
-      "real_speaker_id": "4420",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "2562-157263",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2562-157263.flac |",
-      "real_speaker_id": "2562",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "2562",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.100334830882822,
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-      "duration": 3.8996651691171778,
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-      "utterance_id": "2284-135909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2284-135909.flac |",
-      "real_speaker_id": "2284",
-      "position_frames": 77891
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2284/cough/0129.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053016.json b/conversations/conv_053016.json
deleted file mode 100644
index 7bc5b6a90991d49449204acc92902d81b7f3bfb4..0000000000000000000000000000000000000000
--- a/conversations/conv_053016.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_frame": 0,
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.766699366670215,
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-      "utterance_id": "1594-135914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 63041
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "real_speaker_id": "7463",
-      "position_frames": 0
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-    {
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-    {
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-      "utterance_id": "2514-149482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2514-149482.flac |",
-      "real_speaker_id": "2514",
-      "position_frames": 114012
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_053027.json b/conversations/conv_053027.json
deleted file mode 100644
index ba7850413841ab7c0bdbc2199edb00e942e28c5b..0000000000000000000000000000000000000000
--- a/conversations/conv_053027.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/696-93314.flac |",
-      "real_speaker_id": "696",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.438549116521856,
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-      "real_speaker_id": "8250",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-118731.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.517755853894407,
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-      "utterance_id": "696-92939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/696-92939.flac |",
-      "real_speaker_id": "696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.175586485759105,
-      "end_time": 29.888692717486716,
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-      "utterance_id": "7150-111618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7150-111618.flac |",
-      "real_speaker_id": "7150",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.227517471165946,
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-      "duration": 1.772482528834054,
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-      "utterance_id": "696-92939",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/696-92939.flac |",
-      "real_speaker_id": "696",
-      "position_frames": 56795
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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\ No newline at end of file
diff --git a/conversations/conv_053031.json b/conversations/conv_053031.json
deleted file mode 100644
index f973e4c9e5995444114f5f86f7aa866a71296368..0000000000000000000000000000000000000000
--- a/conversations/conv_053031.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7942-283384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-283384.flac |",
-      "real_speaker_id": "7942",
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-      "real_speaker_id": "2002",
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-      "utterance_id": "4295-39940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4295-39940.flac |",
-      "real_speaker_id": "4295",
-      "position_frames": 62817
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.83155445498771,
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-      "duration": 1.1684455450122897,
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-      "utterance_id": "7942-283384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-283384.flac |",
-      "real_speaker_id": "7942",
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_053041.json b/conversations/conv_053041.json
deleted file mode 100644
index 05330113a8da7223078c907fd73fe0fc7a0eafa4..0000000000000000000000000000000000000000
--- a/conversations/conv_053041.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "8776-270778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8776-270778.flac |",
-      "real_speaker_id": "8776",
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053046.json b/conversations/conv_053046.json
deleted file mode 100644
index 95b98adc5318eadfa015c45cbdc7f5f52ec91b18..0000000000000000000000000000000000000000
--- a/conversations/conv_053046.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6159-58440",
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\ No newline at end of file
diff --git a/conversations/conv_053050.json b/conversations/conv_053050.json
deleted file mode 100644
index 77625c1293faa5152ec9ee0a4dfc5247d056982f..0000000000000000000000000000000000000000
--- a/conversations/conv_053050.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290361.flac |",
-      "real_speaker_id": "8705",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1463-134465",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134465.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
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-      "duration": 2.4662024553278314,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1463-134463.flac |",
-      "real_speaker_id": "1463",
-      "position_frames": 109051
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_053057.json b/conversations/conv_053057.json
deleted file mode 100644
index 04d3b0ad2a4cd2e37a64e64446dfc1ceb51470f9..0000000000000000000000000000000000000000
--- a/conversations/conv_053057.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4218-41159.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/451-126826.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3244-174926.flac |",
-      "real_speaker_id": "3244",
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-      "real_speaker_id": "4218",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053066.json b/conversations/conv_053066.json
deleted file mode 100644
index 2dba384e7bc69c7f63af01af7e27292dc2a200b7..0000000000000000000000000000000000000000
--- a/conversations/conv_053066.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2741-159386.flac |",
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-    },
-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_053070.json b/conversations/conv_053070.json
deleted file mode 100644
index 0f8aa59531478c9d9c8dc5abd1a29562701cd3a5..0000000000000000000000000000000000000000
--- a/conversations/conv_053070.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-      "duration_frames": 53775,
-      "overlap": false,
-      "utterance_id": "6733-74807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6733-74807.flac |",
-      "real_speaker_id": "6733",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
-      "duration": 1.1817687074829932,
-      "start_time": 4.298743117416566
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.461352581238881,
-      "start_time": 16.880733202388715
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6733/laugh/0010.wav",
-      "duration": 0.6095450137751892,
-      "start_time": 3.43758994871487,
-      "speaker_id": "6733"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/432/laugh/0036.wav",
-      "duration": 0.7471495485733533,
-      "start_time": 16.76280505777917,
-      "speaker_id": "432"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053085.json b/conversations/conv_053085.json
deleted file mode 100644
index d08307afaa4af2b21020140421693451cc15d1cf..0000000000000000000000000000000000000000
--- a/conversations/conv_053085.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.6103203862213435,
-      "duration": 4.6103203862213435,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.199061553313636,
-      "end_time": 7.72694866852572,
-      "duration": 3.527887115212084,
-      "start_frame": 67184,
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-      "overlap": true,
-      "utterance_id": "6506-73020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-73020.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.34015205179153,
-      "end_time": 13.396934410565727,
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-      "start_frame": 149442,
-      "duration_frames": 64908,
-      "overlap": false,
-      "utterance_id": "7120-118112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-118112.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 73765
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.832631320432004,
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-      "overlap": false,
-      "utterance_id": "6506-10073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-10073.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.67982496481086,
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-      "duration_frames": 49798,
-      "overlap": false,
-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.762288097996176,
-      "end_time": 27.890512549619373,
-      "duration": 3.128224451623198,
-      "start_frame": 396196,
-      "duration_frames": 50051,
-      "overlap": false,
-      "utterance_id": "7120-76055",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7120-76055.flac |",
-      "real_speaker_id": "7120",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.596747609257452,
-      "end_time": 32.0,
-      "duration": 3.403252390742548,
-      "start_frame": 457547,
-      "duration_frames": 54452,
-      "overlap": false,
-      "utterance_id": "2570-157243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2570-157243.flac |",
-      "real_speaker_id": "2570",
-      "position_frames": 49798
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
-      "duration": 0.9133560090702948,
-      "start_time": 22.492563146803302
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.71288116461895,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7120/cough/0107.wav",
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-      "start_time": 4.7886761151613895,
-      "speaker_id": "7120"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6506/laugh/0086.wav",
-      "duration": 1.24,
-      "start_time": 20.143780848849293,
-      "speaker_id": "6506"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2570/laugh/0013.wav",
-      "duration": 0.9345021677505136,
-      "start_time": 20.82527478865494,
-      "speaker_id": "2570"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053089.json b/conversations/conv_053089.json
deleted file mode 100644
index 620b093a9ced1360de23fcf30f9034e5f0548cb4..0000000000000000000000000000000000000000
--- a/conversations/conv_053089.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.977326487824244,
-      "start_frame": 0,
-      "duration_frames": 63637,
-      "overlap": false,
-      "utterance_id": "6159-58440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6159-58440.flac |",
-      "real_speaker_id": "6159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.7179129080883166,
-      "end_time": 8.185202626868094,
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-      "overlap": true,
-      "utterance_id": "265-136853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-136853.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.265465512314236,
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-      "duration": 5.016646279947506,
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-      "overlap": false,
-      "utterance_id": "6188-73024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-73024.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.85142589352564,
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-      "overlap": false,
-      "utterance_id": "6159-50456",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6159-50456.flac |",
-      "real_speaker_id": "6159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.54320017585714,
-      "end_time": 25.1851562928072,
-      "duration": 4.641956116950061,
-      "start_frame": 328691,
-      "duration_frames": 74271,
-      "overlap": false,
-      "utterance_id": "265-122594",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/265-122594.flac |",
-      "real_speaker_id": "265",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.166058920496987,
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-      "overlap": false,
-      "utterance_id": "6159-58440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6159-58440.flac |",
-      "real_speaker_id": "6159",
-      "position_frames": 63637
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.217904802148944,
-      "end_time": 32.0,
-      "duration": 0.7820951978510564,
-      "start_frame": 499486,
-      "duration_frames": 12513,
-      "overlap": false,
-      "utterance_id": "6188-78885",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6188-78885.flac |",
-      "real_speaker_id": "6188",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_5.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6188/cough/0028.wav",
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-      "start_time": 12.593546729286803,
-      "speaker_id": "6188"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6159/laugh/0060.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6159/cough/0086.wav",
-      "duration": 0.883774088806978,
-      "start_time": 20.42597194153974,
-      "speaker_id": "6159"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6159/cough/0131.wav",
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-      "speaker_id": "6159"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6188/cough/0043.wav",
-      "duration": 0.6257875325624188,
-      "start_time": 31.29980015264154,
-      "speaker_id": "6188"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053093.json b/conversations/conv_053093.json
deleted file mode 100644
index e2a82040a78ed4a7c7dae44d56648c0b1a739b09..0000000000000000000000000000000000000000
--- a/conversations/conv_053093.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 81771,
-      "overlap": false,
-      "utterance_id": "549-126410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.321012225514857,
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-      "overlap": false,
-      "utterance_id": "5157-47238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47238.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.245204956606234,
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-      "duration": 6.188774617415479,
-      "start_frame": 195923,
-      "duration_frames": 99020,
-      "overlap": false,
-      "utterance_id": "5157-47239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47239.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.87571684853036,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
-      "position_frames": 81771
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.141227554450087,
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-      "utterance_id": "5157-47238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5157-47238.flac |",
-      "real_speaker_id": "5157",
-      "position_frames": 100911
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.55251805274714,
-      "end_time": 32.0,
-      "duration": 2.447481947252861,
-      "start_frame": 472840,
-      "duration_frames": 39159,
-      "overlap": false,
-      "utterance_id": "549-126410",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/549-126410.flac |",
-      "real_speaker_id": "549",
-      "position_frames": 165835
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371615_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5157/cough/0010.wav",
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-      "start_time": 4.375563667851966,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5157/cough/0047.wav",
-      "duration": 1.1536592782034145,
-      "start_time": 11.006588720215248,
-      "speaker_id": "5157"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/549/laugh/0073.wav",
-      "duration": 1.08,
-      "start_time": 24.27100340417181,
-      "speaker_id": "549"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/549/laugh/0068.wav",
-      "duration": 1.28,
-      "start_time": 28.08001821826348,
-      "speaker_id": "549"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053103.json b/conversations/conv_053103.json
deleted file mode 100644
index 40a02c0887e52c5c5e766d7f68a2eaa40edaafe9..0000000000000000000000000000000000000000
--- a/conversations/conv_053103.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.995465321835397,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.700198253615375,
-      "duration": 5.700198253615375,
-      "start_frame": 0,
-      "duration_frames": 91203,
-      "overlap": false,
-      "utterance_id": "7700-92925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7700-92925.flac |",
-      "real_speaker_id": "7700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.879350054989477,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/895-136366.flac |",
-      "real_speaker_id": "895",
-      "position_frames": 0
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-      "start_time": 0,
-      "speaker_id": "7700"
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\ No newline at end of file
diff --git a/conversations/conv_053104.json b/conversations/conv_053104.json
deleted file mode 100644
index 08675a7c235ec99ddbebe77fb664644e9af8c7f7..0000000000000000000000000000000000000000
--- a/conversations/conv_053104.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.744885381243327,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7392-105664.flac |",
-      "real_speaker_id": "7392",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 98364
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-      "utterance_id": "3889-130125",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3889-130125.flac |",
-      "real_speaker_id": "3889",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.799810957843665,
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-      "utterance_id": "7169-89735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
-      "position_frames": 195271
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-  "background_events": [
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-      "event_class": "Frying",
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-      "duration": 0.76,
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\ No newline at end of file
diff --git a/conversations/conv_053112.json b/conversations/conv_053112.json
deleted file mode 100644
index 1843fff2ce3ab9bbd15326a23cd051dcb79cf935..0000000000000000000000000000000000000000
--- a/conversations/conv_053112.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "5652-19215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5652-19215.flac |",
-      "real_speaker_id": "5652",
-      "position_frames": 0
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-      "real_speaker_id": "7434",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/37-214.flac |",
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-    {
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-      "position_frames": 0
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-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053115.json b/conversations/conv_053115.json
deleted file mode 100644
index 1992b67c446ea95e07c13e530778c4a89b76ec16..0000000000000000000000000000000000000000
--- a/conversations/conv_053115.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-}
\ No newline at end of file
diff --git a/conversations/conv_053119.json b/conversations/conv_053119.json
deleted file mode 100644
index 887a202c8bfd040ab5007e96adab966d000e2b8c..0000000000000000000000000000000000000000
--- a/conversations/conv_053119.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.425772415163152,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.90381118571627,
-      "duration": 6.90381118571627,
-      "start_frame": 0,
-      "duration_frames": 110460,
-      "overlap": false,
-      "utterance_id": "1914-121446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121446.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.2873409980948844,
-      "end_time": 12.423438448475277,
-      "duration": 5.136097450380393,
-      "start_frame": 116597,
-      "duration_frames": 82177,
-      "overlap": false,
-      "utterance_id": "1914-121446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121446.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 110460
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.745680764626943,
-      "end_time": 17.9506389950411,
-      "duration": 5.204958230414156,
-      "start_frame": 203930,
-      "duration_frames": 83279,
-      "overlap": false,
-      "utterance_id": "4706-28494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28494.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.559423218411965,
-      "end_time": 24.23415391484791,
-      "duration": 5.674730696435944,
-      "start_frame": 296950,
-      "duration_frames": 90795,
-      "overlap": false,
-      "utterance_id": "196-122150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/196-122150.flac |",
-      "real_speaker_id": "196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.02318587045999,
-      "end_time": 31.425772415163152,
-      "duration": 6.402586544703163,
-      "start_frame": 400370,
-      "duration_frames": 102441,
-      "overlap": true,
-      "utterance_id": "1914-133440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-133440.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81574.wav",
-      "duration": 15.000783243280186,
-      "start_time": 7.246325202917751
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
-      "duration": 3.158962151948601,
-      "start_time": 0.08588641603941008
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1914/cough/0077.wav",
-      "duration": 0.5569022558031617,
-      "start_time": 6.569078877573226,
-      "speaker_id": "1914"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1914/laugh/0110.wav",
-      "duration": 0.9353455450269139,
-      "start_time": 25.53061172165467,
-      "speaker_id": "1914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053123.json b/conversations/conv_053123.json
deleted file mode 100644
index a140030bec2285ac5be89027d60284687a962520..0000000000000000000000000000000000000000
--- a/conversations/conv_053123.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.395081919646536,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.741683134736858,
-      "duration": 3.741683134736858,
-      "start_frame": 0,
-      "duration_frames": 59866,
-      "overlap": false,
-      "utterance_id": "8337-283569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-283569.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.146691750347497,
-      "end_time": 7.940571183236418,
-      "duration": 3.793879432888921,
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-      "duration_frames": 60702,
-      "overlap": false,
-      "utterance_id": "6902-89165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89165.flac |",
-      "real_speaker_id": "6902",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.852944010060657,
-      "end_time": 13.693412843989572,
-      "duration": 4.840468833928915,
-      "start_frame": 141647,
-      "duration_frames": 77447,
-      "overlap": false,
-      "utterance_id": "6962-47545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6962-47545.flac |",
-      "real_speaker_id": "6962",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.322681984142854,
-      "end_time": 18.225054722042884,
-      "duration": 3.90237273790003,
-      "start_frame": 229162,
-      "duration_frames": 62437,
-      "overlap": false,
-      "utterance_id": "8337-284523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-284523.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.125636241735947,
-      "end_time": 24.132169177818188,
-      "duration": 5.006532936082242,
-      "start_frame": 306010,
-      "duration_frames": 80104,
-      "overlap": false,
-      "utterance_id": "6902-89165",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6902-89165.flac |",
-      "real_speaker_id": "6902",
-      "position_frames": 60702
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.217634769192237,
-      "end_time": 31.395081919646536,
-      "duration": 6.177447150454299,
-      "start_frame": 403482,
-      "duration_frames": 98839,
-      "overlap": false,
-      "utterance_id": "8337-284519",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8337-284519.flac |",
-      "real_speaker_id": "8337",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-      "start_time": 2.8631639675389775
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 1.5114796640246788,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8337/cough/0111.wav",
-      "duration": 1.4,
-      "start_time": 30.6,
-      "speaker_id": "8337"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053135.json b/conversations/conv_053135.json
deleted file mode 100644
index cd9150b861354c38db3bf20838d1fb3bcbd2fdc8..0000000000000000000000000000000000000000
--- a/conversations/conv_053135.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.212769786813194,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.0719318896075842,
-      "duration": 3.0719318896075842,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "474-141422",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-141422.flac |",
-      "real_speaker_id": "474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.5497392605933515,
-      "end_time": 9.451103657921623,
-      "duration": 5.901364397328272,
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-      "duration_frames": 94421,
-      "overlap": false,
-      "utterance_id": "3638-696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.624949746691035,
-      "end_time": 15.89328321948151,
-      "duration": 6.268333472790475,
-      "start_frame": 153999,
-      "duration_frames": 100293,
-      "overlap": false,
-      "utterance_id": "474-134809",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/474-134809.flac |",
-      "real_speaker_id": "474",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.093236301554793,
-      "end_time": 19.491952937672387,
-      "duration": 3.3987166361175962,
-      "start_frame": 257491,
-      "duration_frames": 54379,
-      "overlap": false,
-      "utterance_id": "3638-758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-758.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.150263145939533,
-      "end_time": 24.248321612888162,
-      "duration": 4.098058466948631,
-      "start_frame": 322404,
-      "duration_frames": 65568,
-      "overlap": false,
-      "utterance_id": "3592-173545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3592-173545.flac |",
-      "real_speaker_id": "3592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.849046166201827,
-      "end_time": 31.212769786813194,
-      "duration": 6.363723620611368,
-      "start_frame": 397584,
-      "duration_frames": 101819,
-      "overlap": false,
-      "utterance_id": "3592-173545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3592-173545.flac |",
-      "real_speaker_id": "3592",
-      "position_frames": 65568
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-      "start_time": 12.107991867826694
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-      "event_class": "Blender",
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-      "start_time": 21.53826862149487
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3638/cough/0039.wav",
-      "duration": 0.6252237766576773,
-      "start_time": 19.67479685210034,
-      "speaker_id": "3638"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3592/cough/0023.wav",
-      "duration": 0.5863705580188251,
-      "start_time": 19.526446138674668,
-      "speaker_id": "3592"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053139.json b/conversations/conv_053139.json
deleted file mode 100644
index 6b6458b3ff004057a987820b1adfbd72a56d3778..0000000000000000000000000000000000000000
--- a/conversations/conv_053139.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.215738196981274,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.496244595495178,
-      "duration": 4.496244595495178,
-      "start_frame": 0,
-      "duration_frames": 71939,
-      "overlap": false,
-      "utterance_id": "2254-152825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152825.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.777428932921532,
-      "end_time": 10.126327270787975,
-      "duration": 5.3488983378664425,
-      "start_frame": 76438,
-      "duration_frames": 85582,
-      "overlap": false,
-      "utterance_id": "1498-140040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140040.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.423662739142138,
-      "end_time": 16.03131492574605,
-      "duration": 5.607652186603912,
-      "start_frame": 166778,
-      "duration_frames": 89722,
-      "overlap": false,
-      "utterance_id": "6288-63105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63105.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.264388220983815,
-      "end_time": 21.20205460931522,
-      "duration": 4.937666388331406,
-      "start_frame": 260230,
-      "duration_frames": 79002,
-      "overlap": false,
-      "utterance_id": "1498-140040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140040.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 85582
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2254-152824",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152824.flac |",
-      "real_speaker_id": "2254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.80312458169237,
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-      "duration": 2.4126136152889046,
-      "start_frame": 460849,
-      "duration_frames": 38601,
-      "overlap": true,
-      "utterance_id": "6288-63105",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6288-63105.flac |",
-      "real_speaker_id": "6288",
-      "position_frames": 89722
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/15292.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2254/laugh/0071.wav",
-      "duration": 1.2,
-      "start_time": 0,
-      "speaker_id": "2254"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1498/laugh/0082.wav",
-      "duration": 1.3146944966110645,
-      "start_time": 3.2279232014666044,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1498/laugh/0056.wav",
-      "duration": 1.4,
-      "start_time": 21.260970501915967,
-      "speaker_id": "1498"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2254/laugh/0080.wav",
-      "duration": 1.28,
-      "start_time": 19.54782970930749,
-      "speaker_id": "2254"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053142.json b/conversations/conv_053142.json
deleted file mode 100644
index 24f7b0f9ebac2e3dc0a6c51bd7e7e1b2d3b724e4..0000000000000000000000000000000000000000
--- a/conversations/conv_053142.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.95890903116381,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
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-      "utterance_id": "2496-156067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156067.flac |",
-      "real_speaker_id": "2496",
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-      "utterance_id": "1779-142733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 14.404360708071433,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/783-126739.flac |",
-      "real_speaker_id": "783",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.759051006161116,
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-      "utterance_id": "2496-156067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156067.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 109153
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1779-142733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1779-142733.flac |",
-      "real_speaker_id": "1779",
-      "position_frames": 95429
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "start_time": 4.498782516187304
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
-      "duration": 2.102007230377956,
-      "start_time": 24.172842614146326
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_1.wav",
-      "duration": 0.6518367346938776,
-      "start_time": 20.886339752204535
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2496/laugh/0124.wav",
-      "duration": 1.1723500971889664,
-      "start_time": 24.071878836040884,
-      "speaker_id": "2496"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1779/laugh/0028.wav",
-      "duration": 1.24,
-      "start_time": 25.6259348671949,
-      "speaker_id": "1779"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053145.json b/conversations/conv_053145.json
deleted file mode 100644
index eab79ae3ab49288973eb932c38e2b5501e8f11a2..0000000000000000000000000000000000000000
--- a/conversations/conv_053145.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "start_frame": 0,
-      "duration_frames": 72613,
-      "overlap": false,
-      "utterance_id": "4005-7262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7262.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.964736497988897,
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-      "utterance_id": "7923-111564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111564.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "duration": 3.759981679462536,
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-      "overlap": false,
-      "utterance_id": "4005-14905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-14905.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.863255892027988,
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-      "utterance_id": "7923-111572",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111572.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 19.575684182821018,
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-      "utterance_id": "7923-111564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111564.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 76410
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7302-86814",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7302-86814.flac |",
-      "real_speaker_id": "7302",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.09499768137209,
-      "end_time": 32.0,
-      "duration": 1.9050023186279113,
-      "start_frame": 481519,
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-      "utterance_id": "7923-111569",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7923-111569.flac |",
-      "real_speaker_id": "7923",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_2.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79633.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "7923"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 18.067773584329153,
-      "speaker_id": "7923"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053153.json b/conversations/conv_053153.json
deleted file mode 100644
index 1505641b4f225a7c655b189fa50949e6fc2498d6..0000000000000000000000000000000000000000
--- a/conversations/conv_053153.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6754-107485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107485.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.351101910444487,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4899-32637.flac |",
-      "real_speaker_id": "4899",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107484.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.096526034677318,
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-      "utterance_id": "6754-107485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6754-107485.flac |",
-      "real_speaker_id": "6754",
-      "position_frames": 94100
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.7104724674927,
-      "end_time": 32.0,
-      "duration": 2.2895275325073,
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-      "duration_frames": 36632,
-      "overlap": false,
-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 69505
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5883/laugh/0031.wav",
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-    {
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-    {
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-      "event_class": "cough",
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-      "speaker_id": "5883"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053154.json b/conversations/conv_053154.json
deleted file mode 100644
index 529e69b2166e0664aec0612910761e7faa6bf163..0000000000000000000000000000000000000000
--- a/conversations/conv_053154.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "utterance_id": "7832-114468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-114468.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "7832-258250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-258250.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-53343.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.11915880331142,
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-      "position_frames": 83611
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 4.35210916884289,
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-      "duration_frames": 69633,
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-      "utterance_id": "6550-65820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6550-65820.flac |",
-      "real_speaker_id": "6550",
-      "position_frames": 104638
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/347708.wav",
-      "duration": 10.059007436950404,
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7832/laugh/0105.wav",
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-      "speaker_id": "7832"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "7832"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6550/laugh/0096.wav",
-      "duration": 0.763905537299493,
-      "start_time": 20.826525097653846,
-      "speaker_id": "6550"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6550/laugh/0061.wav",
-      "duration": 1.7,
-      "start_time": 25.660355037437725,
-      "speaker_id": "6550"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053158.json b/conversations/conv_053158.json
deleted file mode 100644
index fe5d748c020da8197c968b90145102d44b1d0f2e..0000000000000000000000000000000000000000
--- a/conversations/conv_053158.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.545399618344277,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.61139333989963,
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-      "start_frame": 0,
-      "duration_frames": 89782,
-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.236339426494656,
-      "end_time": 10.326365369811601,
-      "duration": 5.090025943316946,
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-      "overlap": true,
-      "utterance_id": "4719-25765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.0194108235437,
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-      "duration": 4.314744027072261,
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-      "duration_frames": 69035,
-      "overlap": true,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 89782
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.592676458062396,
-      "end_time": 19.699878729319302,
-      "duration": 3.1072022712569045,
-      "start_frame": 265482,
-      "duration_frames": 49715,
-      "overlap": false,
-      "utterance_id": "5290-26685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5290-26685.flac |",
-      "real_speaker_id": "5290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.057023689243213,
-      "end_time": 24.893331835348402,
-      "duration": 4.83630814610519,
-      "start_frame": 320912,
-      "duration_frames": 77380,
-      "overlap": false,
-      "utterance_id": "81-121543",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/81-121543.flac |",
-      "real_speaker_id": "81",
-      "position_frames": 158817
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.312799046035984,
-      "end_time": 31.545399618344277,
-      "duration": 6.232600572308291,
-      "start_frame": 405004,
-      "duration_frames": 99721,
-      "overlap": false,
-      "utterance_id": "4719-25765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4719-25765.flac |",
-      "real_speaker_id": "4719",
-      "position_frames": 81440
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366511.wav",
-      "duration": 1.4731059981041739,
-      "start_time": 17.248039761272196
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
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-      "start_time": 18.579587874970695
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/81/cough/0003.wav",
-      "duration": 1.1843932065895477,
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-      "speaker_id": "81"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/81/laugh/0025.wav",
-      "duration": 1.24,
-      "start_time": 25.16211905059362,
-      "speaker_id": "81"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/81/cough/0065.wav",
-      "duration": 0.5763868004723236,
-      "start_time": 21.049504890425926,
-      "speaker_id": "81"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053162.json b/conversations/conv_053162.json
deleted file mode 100644
index 0c62a9178a12ce7f1e7cf843cbf78552eb400027..0000000000000000000000000000000000000000
--- a/conversations/conv_053162.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.22844708661716,
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-      "overlap": false,
-      "utterance_id": "7717-104491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7717-104491.flac |",
-      "real_speaker_id": "7717",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.1966304983118015,
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-      "duration": 6.582984782730299,
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-      "overlap": false,
-      "utterance_id": "5054-1187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-1187.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.659352674413997,
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-      "overlap": true,
-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
-      "real_speaker_id": "2843",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.788076501912553,
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-      "duration_frames": 81154,
-      "overlap": false,
-      "utterance_id": "5054-1187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-1187.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 105327
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.30801327561972,
-      "end_time": 29.017277738351083,
-      "duration": 6.709264462731364,
-      "start_frame": 356928,
-      "duration_frames": 107348,
-      "overlap": false,
-      "utterance_id": "7717-104491",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7717-104491.flac |",
-      "real_speaker_id": "7717",
-      "position_frames": 67655
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.529949876933586,
-      "end_time": 32.0,
-      "duration": 2.4700501230664145,
-      "start_frame": 472479,
-      "duration_frames": 39520,
-      "overlap": false,
-      "utterance_id": "2843-152918",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2843-152918.flac |",
-      "real_speaker_id": "2843",
-      "position_frames": 70976
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
-      "duration": 28.845505436684505,
-      "start_time": 2.2487202633193184
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91516.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91517.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7717/cough/0056.wav",
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-      "start_time": 4.418151551159462,
-      "speaker_id": "7717"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2843/laugh/0082.wav",
-      "duration": 1.22,
-      "start_time": 10.268490275737397,
-      "speaker_id": "2843"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/2843/cough/0030.wav",
-      "duration": 0.584729365128282,
-      "start_time": 10.915266189424294,
-      "speaker_id": "2843"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7717/laugh/0087.wav",
-      "duration": 1.374739627048489,
-      "start_time": 29.056482257965776,
-      "speaker_id": "7717"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053169.json b/conversations/conv_053169.json
deleted file mode 100644
index 972d171c03aa9309c603c6d4742774508598895f..0000000000000000000000000000000000000000
--- a/conversations/conv_053169.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.798895233260891,
-      "duration": 4.798895233260891,
-      "start_frame": 0,
-      "duration_frames": 76782,
-      "overlap": false,
-      "utterance_id": "4205-11977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
-      "real_speaker_id": "4205",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.878266947877324,
-      "end_time": 11.347652538730703,
-      "duration": 6.4693855908533795,
-      "start_frame": 78052,
-      "duration_frames": 103510,
-      "overlap": true,
-      "utterance_id": "4969-73974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73974.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.090779289981981,
-      "end_time": 18.352393718239846,
-      "duration": 5.261614428257865,
-      "start_frame": 209452,
-      "duration_frames": 84185,
-      "overlap": false,
-      "utterance_id": "365-126320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-126320.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.65760713446574,
-      "end_time": 24.583496085027615,
-      "duration": 5.925888950561878,
-      "start_frame": 298521,
-      "duration_frames": 94814,
-      "overlap": false,
-      "utterance_id": "4969-73974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-73974.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 103510
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.621751975879633,
-      "end_time": 30.348901200983242,
-      "duration": 4.727149225103608,
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-      "overlap": false,
-      "utterance_id": "4969-58757",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4969-58757.flac |",
-      "real_speaker_id": "4969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.92573976056973,
-      "end_time": 32.0,
-      "duration": 1.07426023943027,
-      "start_frame": 494811,
-      "duration_frames": 17188,
-      "overlap": false,
-      "utterance_id": "365-84333",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/365-84333.flac |",
-      "real_speaker_id": "365",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 3.1493165671854557,
-      "start_time": 0.5215343152198758
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.457749596027728,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4205/laugh/0009.wav",
-      "duration": 1.76,
-      "start_time": 2.9190433292607616,
-      "speaker_id": "4205"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4205/cough/0000.wav",
-      "duration": 0.88,
-      "start_time": 3.2495939054773557,
-      "speaker_id": "4205"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/laugh/0001.wav",
-      "duration": 0.7080288413226918,
-      "start_time": 4.952990402935591,
-      "speaker_id": "4969"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/365/laugh/0131.wav",
-      "duration": 0.5913841609393968,
-      "start_time": 14.772665304792255,
-      "speaker_id": "365"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4969/cough/0057.wav",
-      "duration": 0.72,
-      "start_time": 17.903654436937,
-      "speaker_id": "4969"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/365/laugh/0076.wav",
-      "duration": 0.9757453406747802,
-      "start_time": 31.02425465932522,
-      "speaker_id": "365"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053174.json b/conversations/conv_053174.json
deleted file mode 100644
index 70366dc10b513c78c0cb9f8fb99eb03e24c29482..0000000000000000000000000000000000000000
--- a/conversations/conv_053174.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.012422834613826,
-      "duration": 3.012422834613826,
-      "start_frame": 0,
-      "duration_frames": 48198,
-      "overlap": false,
-      "utterance_id": "7833-102238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102238.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.709925435487914,
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-      "duration": 4.827501783666778,
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-      "duration_frames": 77240,
-      "overlap": false,
-      "utterance_id": "7515-220980",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7515-220980.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_053178.json b/conversations/conv_053178.json
deleted file mode 100644
index a926ca7db6aee89bdb995f84bd8540dcf36decad..0000000000000000000000000000000000000000
--- a/conversations/conv_053178.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121400.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8531-282933.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_053179.json b/conversations/conv_053179.json
deleted file mode 100644
index aa5657a24dc23278f7ed8585fb16fe283edef6c0..0000000000000000000000000000000000000000
--- a/conversations/conv_053179.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-      "real_speaker_id": "3001",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1926-147987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
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-  ],
-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_053181.json b/conversations/conv_053181.json
deleted file mode 100644
index e42c0adc419a57062fbf66c56f14075509d8be60..0000000000000000000000000000000000000000
--- a/conversations/conv_053181.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "7220-77905",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7220-77905.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 21.21161583708269,
-      "speaker_id": "589"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7505/laugh/0068.wav",
-      "duration": 1.08,
-      "start_time": 20.607302403484102,
-      "speaker_id": "7505"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053186.json b/conversations/conv_053186.json
deleted file mode 100644
index d4b67c41c5be6d82ce7bda4fe2944ffb53d7f32d..0000000000000000000000000000000000000000
--- a/conversations/conv_053186.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.568384233759408,
-      "duration": 3.568384233759408,
-      "start_frame": 0,
-      "duration_frames": 57094,
-      "overlap": false,
-      "utterance_id": "7569-102232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.737599409802243,
-      "end_time": 9.08039737627715,
-      "duration": 4.342797966474906,
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-      "overlap": false,
-      "utterance_id": "3400-153975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3400-153975.flac |",
-      "real_speaker_id": "3400",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.722009637366277,
-      "end_time": 15.325162364751876,
-      "duration": 6.603152727385599,
-      "start_frame": 139552,
-      "duration_frames": 105650,
-      "overlap": true,
-      "utterance_id": "3816-11258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-11258.flac |",
-      "real_speaker_id": "3816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.75235241829153,
-      "end_time": 20.274940401860352,
-      "duration": 3.522587983568821,
-      "start_frame": 268037,
-      "duration_frames": 56361,
-      "overlap": false,
-      "utterance_id": "7569-102240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102240.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.685975822752233,
-      "end_time": 27.334419808789796,
-      "duration": 6.648443986037561,
-      "start_frame": 330975,
-      "duration_frames": 106375,
-      "overlap": false,
-      "utterance_id": "3816-11258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-11258.flac |",
-      "real_speaker_id": "3816",
-      "position_frames": 105650
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.34836056829419,
-      "end_time": 32.0,
-      "duration": 3.65163943170581,
-      "start_frame": 453573,
-      "duration_frames": 58426,
-      "overlap": false,
-      "utterance_id": "7569-102232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7569-102232.flac |",
-      "real_speaker_id": "7569",
-      "position_frames": 57094
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3816/laugh/0052.wav",
-      "duration": 1.16,
-      "start_time": 15.33143668566442,
-      "speaker_id": "3816"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7569/laugh/0014.wav",
-      "duration": 0.6148410569910606,
-      "start_time": 20.296281255861565,
-      "speaker_id": "7569"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7569/cough/0059.wav",
-      "duration": 0.8067129679458671,
-      "start_time": 31.193287032054133,
-      "speaker_id": "7569"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053196.json b/conversations/conv_053196.json
deleted file mode 100644
index 2d2888d9607ad7846ba17b1de8f6b2bc36d5c693..0000000000000000000000000000000000000000
--- a/conversations/conv_053196.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 5.71005078991762,
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-      "overlap": false,
-      "utterance_id": "2748-160985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.096062784563028,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.12245946218869,
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-      "overlap": false,
-      "utterance_id": "8419-286676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-286676.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.56883605629575,
-      "end_time": 23.13301873229845,
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-      "overlap": false,
-      "utterance_id": "7514-96429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 51401
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.447887114556437,
-      "end_time": 28.133220388408617,
-      "duration": 4.685333273852181,
-      "start_frame": 375166,
-      "duration_frames": 74965,
-      "overlap": false,
-      "utterance_id": "8419-286667",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-286667.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.890106400823086,
-      "end_time": 32.0,
-      "duration": 3.109893599176914,
-      "start_frame": 462241,
-      "duration_frames": 49758,
-      "overlap": false,
-      "utterance_id": "2748-160959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160959.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2748/cough/0089.wav",
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-      "start_time": 2.6424576078861586,
-      "speaker_id": "2748"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7514/laugh/0025.wav",
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-      "start_time": 8.43033977078888,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8419/laugh/0108.wav",
-      "duration": 0.5056944664625428,
-      "start_time": 10.987369211539809,
-      "speaker_id": "8419"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053197.json b/conversations/conv_053197.json
deleted file mode 100644
index e5d8bc6b88af5ae0ea34eb9d21abe6695648e2f2..0000000000000000000000000000000000000000
--- a/conversations/conv_053197.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "3857-180923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4273-188161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188161.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.139576525608238,
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-      "overlap": true,
-      "utterance_id": "3857-182317",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-182317.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.181850225400503,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64290.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3857-180923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3857-180923.flac |",
-      "real_speaker_id": "3857",
-      "position_frames": 93513
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.862888337083746,
-      "end_time": 32.0,
-      "duration": 2.1371116629162543,
-      "start_frame": 477806,
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-      "overlap": false,
-      "utterance_id": "4273-188158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4273-188158.flac |",
-      "real_speaker_id": "4273",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 14.170955913347079,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4273/laugh/0001.wav",
-      "duration": 0.8,
-      "start_time": 30.07393919149116,
-      "speaker_id": "4273"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053206.json b/conversations/conv_053206.json
deleted file mode 100644
index 328969459a01f517daa8006169ea070a8a610260..0000000000000000000000000000000000000000
--- a/conversations/conv_053206.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.596911934016401,
-      "duration": 5.596911934016401,
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-      "overlap": false,
-      "utterance_id": "7816-108621",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108621.flac |",
-      "real_speaker_id": "7816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.179205854500906,
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-      "utterance_id": "6178-86034",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7816-108620",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7816-108620.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-    {
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-  "paralinguistic_events": [
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-      "duration": 1.1919097488728436,
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-      "speaker_id": "7816"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6178/laugh/0076.wav",
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-      "speaker_id": "6178"
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-    {
-      "event_class": "cough",
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-      "duration": 0.5962218089152455,
-      "start_time": 20.320584096513297,
-      "speaker_id": "6178"
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-      "event_class": "laugh",
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-      "duration": 0.84,
-      "start_time": 24.649856533932677,
-      "speaker_id": "7816"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053207.json b/conversations/conv_053207.json
deleted file mode 100644
index 2227748de2d2afe64ae9da59edaac57019592dfd..0000000000000000000000000000000000000000
--- a/conversations/conv_053207.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.2329429241413905,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
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-      "utterance_id": "3092-39501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 91878
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.45546102912367,
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-      "utterance_id": "4442-2868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3092-39501.flac |",
-      "real_speaker_id": "3092",
-      "position_frames": 157103
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.914778981115216,
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-      "utterance_id": "4442-2868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 154710
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "duration": 1.18,
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-}
\ No newline at end of file
diff --git a/conversations/conv_053210.json b/conversations/conv_053210.json
deleted file mode 100644
index 142386af8c1baca2cb956979ebec8d2e3ca0d5f4..0000000000000000000000000000000000000000
--- a/conversations/conv_053210.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "duration_frames": 91708,
-      "overlap": false,
-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.066199791242322,
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-      "utterance_id": "8718-295197",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 86226
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2652-157644.flac |",
-      "real_speaker_id": "2652",
-      "position_frames": 149447
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-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053226.json b/conversations/conv_053226.json
deleted file mode 100644
index c2fc1f3f06b23b8a6e020b3cdaf7a52027a1ebbd..0000000000000000000000000000000000000000
--- a/conversations/conv_053226.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8009-284678.flac |",
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-      "utterance_id": "4297-13009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4297-13009.flac |",
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-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "real_speaker_id": "2068",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_053230.json b/conversations/conv_053230.json
deleted file mode 100644
index 3388e55ab887f1e5bf59433d8d4b046aeeacb9b3..0000000000000000000000000000000000000000
--- a/conversations/conv_053230.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.772225809175183,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "8142-3967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8142-3967.flac |",
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-      "start_time": 9.865853778727933,
-      "speaker_id": "8142"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053247.json b/conversations/conv_053247.json
deleted file mode 100644
index ac9f43d0b6b71545fee2408aa09d17d61a7424cf..0000000000000000000000000000000000000000
--- a/conversations/conv_053247.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1025-75365",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-75365.flac |",
-      "real_speaker_id": "1025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.185006104947428,
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-      "duration": 4.582504112788729,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-92820.flac |",
-      "real_speaker_id": "1025",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "1025-92820",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1025-92820.flac |",
-      "real_speaker_id": "1025",
-      "position_frames": 73320
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.357166684326847,
-      "end_time": 20.382985914545607,
-      "duration": 5.025819230218762,
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-      "overlap": false,
-      "utterance_id": "8565-290391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290391.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.64102433171253,
-      "end_time": 26.12975017704215,
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-      "duration_frames": 87819,
-      "overlap": false,
-      "utterance_id": "8565-290398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290398.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.965386414971597,
-      "end_time": 30.226963832906506,
-      "duration": 3.2615774179349084,
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-      "duration_frames": 52185,
-      "overlap": false,
-      "utterance_id": "2992-164100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2992-164100.flac |",
-      "real_speaker_id": "2992",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.82674132228546,
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-      "duration": 1.1732586777145393,
-      "start_frame": 493227,
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-      "utterance_id": "8565-290391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290391.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 80413
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1025/laugh/0107.wav",
-      "duration": 1.32,
-      "start_time": 9.498983846428134,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8565/cough/0135.wav",
-      "duration": 0.84,
-      "start_time": 14.464524188884196,
-      "speaker_id": "8565"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053250.json b/conversations/conv_053250.json
deleted file mode 100644
index 2a79734e65bf05764d450943edf7529b271aa71a..0000000000000000000000000000000000000000
--- a/conversations/conv_053250.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.384248160642436,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8028-233366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233366.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.5451127134163585,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5723-49750.flac |",
-      "real_speaker_id": "5723",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 15.116860566314854,
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-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 21.23934244336406,
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-      "overlap": false,
-      "utterance_id": "5198-204975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5198-204975.flac |",
-      "real_speaker_id": "5198",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 27.578031031214785,
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-      "utterance_id": "8028-233382",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8028-233382.flac |",
-      "real_speaker_id": "8028",
-      "position_frames": 86015
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/378702.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8028/cough/0099.wav",
-      "duration": 0.46348498188213016,
-      "start_time": 27.03206307049196,
-      "speaker_id": "8028"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053251.json b/conversations/conv_053251.json
deleted file mode 100644
index 738085844e85cfa8dfa0a4b5540532c493afe69d..0000000000000000000000000000000000000000
--- a/conversations/conv_053251.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "5933-104482",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5933-104482.flac |",
-      "real_speaker_id": "5933",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6553-82558",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-82558.flac |",
-      "real_speaker_id": "6553",
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-      "segment_id": "seg0002",
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-      "utterance_id": "6553-86683",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6553-86683.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.04931835806181,
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-      "utterance_id": "5933-104482",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "6553",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "2925-162505",
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-      "real_speaker_id": "2925",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053267.json b/conversations/conv_053267.json
deleted file mode 100644
index ce9a84c567ce131e79cfa6f744e20cb2e731fe0a..0000000000000000000000000000000000000000
--- a/conversations/conv_053267.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
-      "real_speaker_id": "199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "duration_frames": 104992,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/199-131001.flac |",
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-      "segment_id": "seg0003",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053271.json b/conversations/conv_053271.json
deleted file mode 100644
index 65edb8c4a295216da1b2c39aaa1f2360db52ca8c..0000000000000000000000000000000000000000
--- a/conversations/conv_053271.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.1588238983744965,
-      "duration": 3.1588238983744965,
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-      "overlap": false,
-      "utterance_id": "242-122627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.6768909746925025,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
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-      "utterance_id": "348-132751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132751.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.69198353910594,
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-      "utterance_id": "6454-93938",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-93938.flac |",
-      "real_speaker_id": "6454",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.9077394194941,
-      "end_time": 27.060081088677077,
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-      "utterance_id": "242-122627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/242-122627.flac |",
-      "real_speaker_id": "242",
-      "position_frames": 115483
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.7448908205964,
-      "end_time": 32.0,
-      "duration": 4.2551091794036005,
-      "start_frame": 443918,
-      "duration_frames": 68081,
-      "overlap": false,
-      "utterance_id": "348-132751",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132751.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 85909
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_1.wav",
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 22.00671186903281,
-      "speaker_id": "242"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053283.json b/conversations/conv_053283.json
deleted file mode 100644
index f58ec353cff2bab1ea81611dccbd4895826e4cbc..0000000000000000000000000000000000000000
--- a/conversations/conv_053283.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5570-73846",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73846.flac |",
-      "real_speaker_id": "5570",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-132102.flac |",
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-      "real_speaker_id": "3807",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73848.flac |",
-      "real_speaker_id": "5570",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.363692517712124,
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-      "utterance_id": "3807-4955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4955.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 74160
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.49557626635479,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4923.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.953769449542985,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5570-73848.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 1.32,
-      "start_time": 22.993314928123766,
-      "speaker_id": "3807"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053284.json b/conversations/conv_053284.json
deleted file mode 100644
index bce11b8a966be511cd792046bb3d6d1cfc7cc4ce..0000000000000000000000000000000000000000
--- a/conversations/conv_053284.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3368-170951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170951.flac |",
-      "real_speaker_id": "3368",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/204-162375.flac |",
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-      "real_speaker_id": "2085",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147968.flac |",
-      "real_speaker_id": "2085",
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-  "background_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053288.json b/conversations/conv_053288.json
deleted file mode 100644
index b9f3fdfcba2ab460cf40603a266ddfd98d4795ce..0000000000000000000000000000000000000000
--- a/conversations/conv_053288.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "831-130739",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/831-130739.flac |",
-      "real_speaker_id": "831",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/99181_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 0.32952321317255956,
-      "start_time": 0,
-      "speaker_id": "7448"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/831/laugh/0026.wav",
-      "duration": 1.08,
-      "start_time": 3.4661856961474835,
-      "speaker_id": "831"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5386/laugh/0089.wav",
-      "duration": 0.8803696814123673,
-      "start_time": 9.148981995502805,
-      "speaker_id": "5386"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5386/cough/0118.wav",
-      "duration": 1.0817735362896226,
-      "start_time": 14.530245732998738,
-      "speaker_id": "5386"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053292.json b/conversations/conv_053292.json
deleted file mode 100644
index d124b3ca3d2ede8376126ecb8316b4504874208c..0000000000000000000000000000000000000000
--- a/conversations/conv_053292.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.605539855637935,
-      "duration": 5.605539855637935,
-      "start_frame": 0,
-      "duration_frames": 89688,
-      "overlap": false,
-      "utterance_id": "712-123615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.632831768200919,
-      "end_time": 10.329565301298468,
-      "duration": 3.696733533097549,
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-      "utterance_id": "412-126975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.609183192413255,
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-      "duration_frames": 73395,
-      "overlap": false,
-      "utterance_id": "5545-66419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-66419.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.618010101812885,
-      "end_time": 22.937705845957566,
-      "duration": 6.319695744144681,
-      "start_frame": 265888,
-      "duration_frames": 101115,
-      "overlap": false,
-      "utterance_id": "412-126975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/412-126975.flac |",
-      "real_speaker_id": "412",
-      "position_frames": 59147
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.705181197506832,
-      "end_time": 30.276404320017775,
-      "duration": 6.571223122510943,
-      "start_frame": 379282,
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-      "overlap": false,
-      "utterance_id": "712-123615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/712-123615.flac |",
-      "real_speaker_id": "712",
-      "position_frames": 89688
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.732935836017518,
-      "end_time": 32.0,
-      "duration": 1.2670641639824822,
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-      "duration_frames": 20273,
-      "overlap": false,
-      "utterance_id": "5545-52067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5545-52067.flac |",
-      "real_speaker_id": "5545",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
-      "duration": 27.78238095238095,
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-  "foreground_events": [
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-      "event_class": "cough",
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-      "duration": 1.08,
-      "start_time": 0,
-      "speaker_id": "712"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 8.375768368189112,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/412/laugh/0044.wav",
-      "duration": 0.6033391583539287,
-      "start_time": 15.760132136890226,
-      "speaker_id": "412"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/712/laugh/0087.wav",
-      "duration": 1.0165035439938794,
-      "start_time": 30.354448437373804,
-      "speaker_id": "712"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053295.json b/conversations/conv_053295.json
deleted file mode 100644
index c8a9e7d3393ad2bf6b57d0905219958871b4dde3..0000000000000000000000000000000000000000
--- a/conversations/conv_053295.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6082-56175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56175.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.6562707213236925,
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-      "utterance_id": "3168-173565",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173565.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 13.587906282641434,
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-      "duration_frames": 52951,
-      "overlap": false,
-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.06345584130715,
-      "end_time": 21.58182594249872,
-      "duration": 5.518370101191571,
-      "start_frame": 257015,
-      "duration_frames": 88293,
-      "overlap": true,
-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 52951
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.272893641663746,
-      "end_time": 28.51727503521512,
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-      "overlap": false,
-      "utterance_id": "4513-16024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
-      "real_speaker_id": "4513",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.754365178455274,
-      "end_time": 32.0,
-      "duration": 3.2456348215447264,
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-      "overlap": false,
-      "utterance_id": "6082-56175",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56175.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 104464
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-  "paralinguistic_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053302.json b/conversations/conv_053302.json
deleted file mode 100644
index 8c6f9d90d833fe66a8f8b38bd2500a4bf246fe19..0000000000000000000000000000000000000000
--- a/conversations/conv_053302.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.340757509613288,
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-      "overlap": false,
-      "utterance_id": "8447-286248",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286248.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.834049811262337,
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-      "utterance_id": "6687-119383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119383.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "8447-285242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-285242.flac |",
-      "real_speaker_id": "8447",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.52022385926238,
-      "end_time": 23.019888846732876,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-29403.flac |",
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-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "6687-119383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6687-119383.flac |",
-      "real_speaker_id": "6687",
-      "position_frames": 111674
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-      "event_class": "laugh",
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-      "duration": 1.5,
-      "start_time": 21.21311259613136,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4771/cough/0054.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "6687"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053314.json b/conversations/conv_053314.json
deleted file mode 100644
index a92944c36117b9fa40eb01d456ff1691ef4ec141..0000000000000000000000000000000000000000
--- a/conversations/conv_053314.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.892195051212475,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.511868607024975,
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-      "overlap": false,
-      "utterance_id": "2238-121413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121413.flac |",
-      "real_speaker_id": "2238",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.239608862571359,
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "426-122821",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122821.flac |",
-      "real_speaker_id": "426",
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-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/426-122819.flac |",
-      "real_speaker_id": "426",
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2238-121415.flac |",
-      "real_speaker_id": "2238",
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-      "duration": 1.24,
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-}
\ No newline at end of file
diff --git a/conversations/conv_053315.json b/conversations/conv_053315.json
deleted file mode 100644
index 8c41f92006cf2c97eef23510d9b8b957ab87bf75..0000000000000000000000000000000000000000
--- a/conversations/conv_053315.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "3905-149791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7665-104978.flac |",
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
-      "position_frames": 91873
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.816699983827974,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7665-104979.flac |",
-      "real_speaker_id": "7665",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.62200502521086,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3905-149791.flac |",
-      "real_speaker_id": "3905",
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7665-104979.flac |",
-      "real_speaker_id": "7665",
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-  "background_events": [],
-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_053318.json b/conversations/conv_053318.json
deleted file mode 100644
index c10ed18d8149a2fdb43e3c7dc25fb612cf3411c1..0000000000000000000000000000000000000000
--- a/conversations/conv_053318.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2001-144499.flac |",
-      "real_speaker_id": "2001",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.81807759849923,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 90518
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-      "segment_id": "seg0005",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_053322.json b/conversations/conv_053322.json
deleted file mode 100644
index 6eb8eaf61d5f49ccf37d9f859f1d8e3cffe96865..0000000000000000000000000000000000000000
--- a/conversations/conv_053322.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5682-32876.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8080-3961.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1743-142912.flac |",
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-      "position_frames": 0
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_053329.json b/conversations/conv_053329.json
deleted file mode 100644
index 4e0d1529e782ed22f2999bfd9d3206bd44757d3f..0000000000000000000000000000000000000000
--- a/conversations/conv_053329.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135022.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 97810
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
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-  "paralinguistic_events": [
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-      "start_time": 16.14421990208227,
-      "speaker_id": "7609"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053334.json b/conversations/conv_053334.json
deleted file mode 100644
index 6e2c155c16abc096052969013d7174290cdfa46a..0000000000000000000000000000000000000000
--- a/conversations/conv_053334.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.771438851533897,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
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-      "utterance_id": "27-124992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-124992.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.615582437945406,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
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-      "speaker_id": 0,
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-      "utterance_id": "27-123349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.311402782181872,
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-      "duration": 4.688597217818128,
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-      "duration_frames": 75017,
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-      "utterance_id": "8168-116789",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8168-116789.flac |",
-      "real_speaker_id": "8168",
-      "position_frames": 252138
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "27"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053338.json b/conversations/conv_053338.json
deleted file mode 100644
index af51dd0f266002aead85f22204eb35bdc2cff2c6..0000000000000000000000000000000000000000
--- a/conversations/conv_053338.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
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-      "utterance_id": "1849-138063",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-138063.flac |",
-      "real_speaker_id": "1849",
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-    },
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163507.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 82654
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1849-144965",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1849-144965.flac |",
-      "real_speaker_id": "1849",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3185-163505.flac |",
-      "real_speaker_id": "3185",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
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-    {
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-      "speaker_id": "3185"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053342.json b/conversations/conv_053342.json
deleted file mode 100644
index a10e4b1602092d900e4d37c22a44683dfbd8069d..0000000000000000000000000000000000000000
--- a/conversations/conv_053342.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "118-121721",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/118-121721.flac |",
-      "real_speaker_id": "118",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5980-22680.flac |",
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-      "position_frames": 75067
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-    {
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-      "real_speaker_id": "118",
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5206-19376.flac |",
-      "real_speaker_id": "5206",
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "speaker_id": "118"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053343.json b/conversations/conv_053343.json
deleted file mode 100644
index ad9323c566a2c7e86253b926578f6455cb3cf1fd..0000000000000000000000000000000000000000
--- a/conversations/conv_053343.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "4706-28494",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-28494.flac |",
-      "real_speaker_id": "4706",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/264-121332.flac |",
-      "real_speaker_id": "264",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "4706-18009",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4706-18009.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_053355.json b/conversations/conv_053355.json
deleted file mode 100644
index 2afed84562b750978f822f921ce30e93f4b4c1bc..0000000000000000000000000000000000000000
--- a/conversations/conv_053355.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6077-58755.flac |",
-      "real_speaker_id": "6077",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2769-169619.flac |",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_053359.json b/conversations/conv_053359.json
deleted file mode 100644
index 9c3205e471bd94b9c1a4a4861ce52f799cfcae64..0000000000000000000000000000000000000000
--- a/conversations/conv_053359.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_053363.json b/conversations/conv_053363.json
deleted file mode 100644
index 229d0da561643d6283ce175d0aa6d57e4e79eb12..0000000000000000000000000000000000000000
--- a/conversations/conv_053363.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
-      "real_speaker_id": "6157",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6157-40556.flac |",
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-  "background_events": [],
-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053368.json b/conversations/conv_053368.json
deleted file mode 100644
index af10b03f6a3bac0a03e1ff977408f16a676b09b5..0000000000000000000000000000000000000000
--- a/conversations/conv_053368.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.041258169622214,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7239-63500.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053375.json b/conversations/conv_053375.json
deleted file mode 100644
index 9b5b388f396256a4798da2f1d68f4f8fcb57bf48..0000000000000000000000000000000000000000
--- a/conversations/conv_053375.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.290323711357296,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4005-7262.flac |",
-      "real_speaker_id": "4005",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053379.json b/conversations/conv_053379.json
deleted file mode 100644
index 8113fece86003b53a79a61a91e3dd14c3a21f1df..0000000000000000000000000000000000000000
--- a/conversations/conv_053379.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
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-      "segment_id": "seg0006",
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-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053380.json b/conversations/conv_053380.json
deleted file mode 100644
index f3224c02adffd704c533de8db5fd19499a985ce3..0000000000000000000000000000000000000000
--- a/conversations/conv_053380.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
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-      "speaker_id": "4262"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4262/laugh/0023.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053387.json b/conversations/conv_053387.json
deleted file mode 100644
index 1d3d4ecec724c47a025ea28b8606c07db88ea3c7..0000000000000000000000000000000000000000
--- a/conversations/conv_053387.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "4872-20426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4872-20426.flac |",
-      "real_speaker_id": "4872",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132751.flac |",
-      "real_speaker_id": "348",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.53240622389265,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
-      "real_speaker_id": "2895",
-      "position_frames": 86719
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.81194561013053,
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-      "utterance_id": "348-132611",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/348-132611.flac |",
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-  "background_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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\ No newline at end of file
diff --git a/conversations/conv_053391.json b/conversations/conv_053391.json
deleted file mode 100644
index 464f4931e11fe540f073bd990132cc9316782c21..0000000000000000000000000000000000000000
--- a/conversations/conv_053391.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.99049541732281,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1336-138113.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "7520-258986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7520-258986.flac |",
-      "real_speaker_id": "7520",
-      "position_frames": 0
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_053396.json b/conversations/conv_053396.json
deleted file mode 100644
index 17b399b7de6f1df9187ed50037df77f20ebded28..0000000000000000000000000000000000000000
--- a/conversations/conv_053396.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-      "real_speaker_id": "3400",
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\ No newline at end of file
diff --git a/conversations/conv_053400.json b/conversations/conv_053400.json
deleted file mode 100644
index 3eafde0d1d13f6e8607ea27fec6b88361a180d8d..0000000000000000000000000000000000000000
--- a/conversations/conv_053400.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "duration": 0.4329251700680272,
-      "start_time": 2.3238440562479084
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3959/cough/0005.wav",
-      "duration": 0.6919804328541035,
-      "start_time": 22.609146868898762,
-      "speaker_id": "3959"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7475/laugh/0010.wav",
-      "duration": 0.7547648326008548,
-      "start_time": 28.13470299604968,
-      "speaker_id": "7475"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053407.json b/conversations/conv_053407.json
deleted file mode 100644
index 816b061b05c0c80da1622ce75fc159e795f694e2..0000000000000000000000000000000000000000
--- a/conversations/conv_053407.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.501041999046469,
-      "duration": 3.501041999046469,
-      "start_frame": 0,
-      "duration_frames": 56016,
-      "overlap": false,
-      "utterance_id": "2943-171000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2943-171000.flac |",
-      "real_speaker_id": "2943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.795135334450755,
-      "end_time": 8.371686602572828,
-      "duration": 4.576551268122072,
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-      "duration_frames": 73224,
-      "overlap": false,
-      "utterance_id": "2930-163436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163436.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.140410709894649,
-      "end_time": 13.345652166139423,
-      "duration": 4.205241456244774,
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-      "duration_frames": 67283,
-      "overlap": false,
-      "utterance_id": "3063-138651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.95715649986137,
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-      "duration": 4.090102378262042,
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-      "overlap": false,
-      "utterance_id": "2930-163436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-163436.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 73224
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.456025863257654,
-      "end_time": 23.39006765961834,
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-      "utterance_id": "3063-138651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138651.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 67283
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.4194671599626,
-      "end_time": 29.31987969196141,
-      "duration": 4.90041253199881,
-      "start_frame": 390711,
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-      "overlap": false,
-      "utterance_id": "2930-5059",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2930-5059.flac |",
-      "real_speaker_id": "2930",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.699697023160574,
-      "end_time": 32.0,
-      "duration": 2.3003029768394256,
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-      "duration_frames": 36804,
-      "overlap": false,
-      "utterance_id": "3063-138652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138652.flac |",
-      "real_speaker_id": "3063",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 18.15201782586499,
-      "start_time": 3.2109815143416944
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/239565.wav",
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/laugh/0047.wav",
-      "duration": 1.3486640303106425,
-      "start_time": 6.963904412368988,
-      "speaker_id": "2930"
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-    {
-      "event_class": "cough",
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-      "duration": 0.8234866084022796,
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0640618969376274,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.182704313448205,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2930/laugh/0110.wav",
-      "duration": 1.04,
-      "start_time": 27.454938192978894,
-      "speaker_id": "2930"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053411.json b/conversations/conv_053411.json
deleted file mode 100644
index 0029a80c2f5b73afc33cdb51b7e41f9e6c8f5ae5..0000000000000000000000000000000000000000
--- a/conversations/conv_053411.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "4591-16221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-16221.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.413154386355827,
-      "end_time": 10.502039877313107,
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-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "4591-16221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-16221.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 74862
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.300906286824006,
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-      "overlap": false,
-      "utterance_id": "7959-109176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109176.flac |",
-      "real_speaker_id": "7959",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.04049388792159,
-      "end_time": 28.06787034642462,
-      "duration": 5.027376458503031,
-      "start_frame": 368647,
-      "duration_frames": 80438,
-      "overlap": false,
-      "utterance_id": "4591-14356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4591-14356.flac |",
-      "real_speaker_id": "4591",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.378678552783633,
-      "end_time": 32.0,
-      "duration": 3.621321447216367,
-      "start_frame": 454058,
-      "duration_frames": 57941,
-      "overlap": false,
-      "utterance_id": "5867-48852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5867-48852.flac |",
-      "real_speaker_id": "5867",
-      "position_frames": 81422
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_8.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5867/laugh/0077.wav",
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-      "start_time": 10.78300793151946,
-      "speaker_id": "5867"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5867/cough/0108.wav",
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-      "speaker_id": "5867"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4591/laugh/0087.wav",
-      "duration": 0.8674830711753931,
-      "start_time": 13.862214060258403,
-      "speaker_id": "4591"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/5867/cough/0025.wav",
-      "duration": 1.32,
-      "start_time": 26.884920015185823,
-      "speaker_id": "5867"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053416.json b/conversations/conv_053416.json
deleted file mode 100644
index b992605581d05c0e709b60f59c4d28e5b892e06b..0000000000000000000000000000000000000000
--- a/conversations/conv_053416.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5093-48377",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-48377.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.491535170179754,
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-      "overlap": false,
-      "utterance_id": "2104-78253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78253.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.687355514451157,
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-      "overlap": true,
-      "utterance_id": "7997-111777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111777.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.1259218990046,
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-      "utterance_id": "5093-26496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5093-26496.flac |",
-      "real_speaker_id": "5093",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.976703569409953,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7997-111638.flac |",
-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.60603445623172,
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-      "utterance_id": "7997-275179",
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-      "real_speaker_id": "7997",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.877520041828213,
-      "end_time": 32.0,
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-      "overlap": false,
-      "utterance_id": "2104-78240",
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-      "real_speaker_id": "2104",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/327387.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7997/laugh/0115.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2104/laugh/0077.wav",
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-      "start_time": 30.126073641263137,
-      "speaker_id": "2104"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053420.json b/conversations/conv_053420.json
deleted file mode 100644
index 20e0844ad5dc9b28e4522f1230220dd8dad9fb18..0000000000000000000000000000000000000000
--- a/conversations/conv_053420.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.301053786657221,
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-      "utterance_id": "6529-62556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62556.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.878208363397033,
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-      "duration": 4.972128073252774,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122828.flac |",
-      "real_speaker_id": "16",
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122827.flac |",
-      "real_speaker_id": "16",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4205-11977.flac |",
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053436.json b/conversations/conv_053436.json
deleted file mode 100644
index b13f4f9cdf14c5972d7b5e1588d2cba4e247666d..0000000000000000000000000000000000000000
--- a/conversations/conv_053436.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "8164-279593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279593.flac |",
-      "real_speaker_id": "8164",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 4.222434694003873,
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-      "real_speaker_id": "7786",
-      "position_frames": 0
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_053441.json b/conversations/conv_053441.json
deleted file mode 100644
index bf3a666961fb4935670c938931d2037088c737ef..0000000000000000000000000000000000000000
--- a/conversations/conv_053441.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_053446.json b/conversations/conv_053446.json
deleted file mode 100644
index 2f2c1e05cb7a681751c80901dac3bab00813c621..0000000000000000000000000000000000000000
--- a/conversations/conv_053446.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": "2988"
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-      "start_time": 29.95737134000585,
-      "speaker_id": "2988"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053450.json b/conversations/conv_053450.json
deleted file mode 100644
index 770b0bda086558b15a50e0fc63c42be32ad54af1..0000000000000000000000000000000000000000
--- a/conversations/conv_053450.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.6180319949807975,
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-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
-      "start_time": 4.088607200149394,
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-      "overlap": false,
-      "utterance_id": "3009-10328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10328.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 57888
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.705556049033335,
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-      "duration": 5.689472650014797,
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-      "overlap": true,
-      "utterance_id": "1274-121771",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121771.flac |",
-      "real_speaker_id": "1274",
-      "position_frames": 62753
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.376157276759777,
-      "end_time": 27.641838032750172,
-      "duration": 6.265680755990395,
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-      "duration_frames": 100250,
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-      "utterance_id": "3009-10327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3009-10327.flac |",
-      "real_speaker_id": "3009",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.778127456607706,
-      "end_time": 32.0,
-      "duration": 4.221872543392294,
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-      "overlap": false,
-      "utterance_id": "1923-161972",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161972.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64011.wav",
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-      "event_class": "Alarm_bell_ringing",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3009/laugh/0083.wav",
-      "duration": 1.08,
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-      "start_time": 26.371796547169655,
-      "speaker_id": "1923"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053457.json b/conversations/conv_053457.json
deleted file mode 100644
index f5acfe99473ba619d4a2344ae1ef6cb87fb6dcc4..0000000000000000000000000000000000000000
--- a/conversations/conv_053457.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.1942509130779,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "6402-62813",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-62813.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105213.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7169-89735.flac |",
-      "real_speaker_id": "7169",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-102886.flac |",
-      "real_speaker_id": "6402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.679718232949728,
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-      "overlap": false,
-      "utterance_id": "6402-105212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6402-105212.flac |",
-      "real_speaker_id": "6402",
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053461.json b/conversations/conv_053461.json
deleted file mode 100644
index 836699792469b644457984b8171f340929d6194d..0000000000000000000000000000000000000000
--- a/conversations/conv_053461.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5918-46890.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 178701
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_053477.json b/conversations/conv_053477.json
deleted file mode 100644
index 5d3869e2cdb1a9998b4deb4744ff8aeecdc17f3d..0000000000000000000000000000000000000000
--- a/conversations/conv_053477.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/218/laugh/0048.wav",
-      "duration": 1.32,
-      "start_time": 22.02700736114228,
-      "speaker_id": "218"
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-    {
-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 26.394312715942363,
-      "speaker_id": "8312"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053482.json b/conversations/conv_053482.json
deleted file mode 100644
index 587b5d03701e36491f1ae6fb2f6339d88fc1c812..0000000000000000000000000000000000000000
--- a/conversations/conv_053482.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration_frames": 67228,
-      "overlap": false,
-      "utterance_id": "7699-105399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105399.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 13.991104246055409,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105399.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 67228
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-    {
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-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
-      "real_speaker_id": "7949",
-      "position_frames": 79876
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7699-105399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7699-105399.flac |",
-      "real_speaker_id": "7699",
-      "position_frames": 154406
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.80995244932173,
-      "end_time": 32.0,
-      "duration": 1.190047550678269,
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-      "utterance_id": "7949-39970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7949-39970.flac |",
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-      "position_frames": 167905
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-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7699/laugh/0111.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.8,
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "7949"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053483.json b/conversations/conv_053483.json
deleted file mode 100644
index 4b22dc19cb2348866afb8da986e52713a3fc4ac1..0000000000000000000000000000000000000000
--- a/conversations/conv_053483.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "8058-99403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8534.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99403.flac |",
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-      "real_speaker_id": "1737",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.652516507150285,
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-      "utterance_id": "1421-8534",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8534.flac |",
-      "real_speaker_id": "1421",
-      "position_frames": 70062
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "8058-99402",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8058-99402.flac |",
-      "real_speaker_id": "8058",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "1737-146161",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1737-146161.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053493.json b/conversations/conv_053493.json
deleted file mode 100644
index 3d18c0f52e4d246a7c7c3b5b1700f981a646adae..0000000000000000000000000000000000000000
--- a/conversations/conv_053493.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1487",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_053494.json b/conversations/conv_053494.json
deleted file mode 100644
index 26748acfde63e97e85306f487f4c92fe023bba67..0000000000000000000000000000000000000000
--- a/conversations/conv_053494.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "1353",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163372.flac |",
-      "real_speaker_id": "915",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/45-121050.flac |",
-      "real_speaker_id": "45",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.633192140193145,
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-      "duration": 3.3668078598068547,
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-      "utterance_id": "915-163371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163371.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "1353"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/915/laugh/0135.wav",
-      "duration": 0.7206326020518428,
-      "start_time": 19.31026027310887,
-      "speaker_id": "915"
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-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 30.72,
-      "speaker_id": "915"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053498.json b/conversations/conv_053498.json
deleted file mode 100644
index b07e8a4f2d6731fef4d81f0709c2b5fe0c523765..0000000000000000000000000000000000000000
--- a/conversations/conv_053498.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.249404277491871,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.608869623729415,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 83990
-    },
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-      "speaker_id": 2,
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-      "utterance_id": "4192-5332",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4192-5332.flac |",
-      "real_speaker_id": "4192",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1863-142324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1863-142324.flac |",
-      "real_speaker_id": "1863",
-      "position_frames": 173035
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.659147379953836,
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-      "overlap": false,
-      "utterance_id": "7376-96150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 107889
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/347682.wav",
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-      "speaker_id": "7376"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053503.json b/conversations/conv_053503.json
deleted file mode 100644
index 417cf620de516fbb73b211a148446d9904299fa8..0000000000000000000000000000000000000000
--- a/conversations/conv_053503.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7956-245687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 0
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-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 100650
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.644199521690346,
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-      "utterance_id": "1545-161007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-161007.flac |",
-      "real_speaker_id": "1545",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.84737235843509,
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-      "utterance_id": "7956-245687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7956-245687.flac |",
-      "real_speaker_id": "7956",
-      "position_frames": 178255
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6620/laugh/0023.wav",
-      "duration": 0.5820089780979543,
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-      "speaker_id": "6620"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053504.json b/conversations/conv_053504.json
deleted file mode 100644
index f94e5b2ef91d701cc3c92db2daf9e3267196528a..0000000000000000000000000000000000000000
--- a/conversations/conv_053504.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "start_frame": 0,
-      "duration_frames": 63959,
-      "overlap": false,
-      "utterance_id": "4363-11049",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-11049.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.436172440711115,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-14936.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-26514.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.117061756068106,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-14936.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 84543
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 76909,
-      "overlap": false,
-      "utterance_id": "7448-111703",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7448-111703.flac |",
-      "real_speaker_id": "7448",
-      "position_frames": 55720
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.554233530186472,
-      "end_time": 32.0,
-      "duration": 0.4457664698135275,
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-      "utterance_id": "4363-14936",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4363-14936.flac |",
-      "real_speaker_id": "4363",
-      "position_frames": 195585
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-      "event_class": "Running_water",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4363/cough/0050.wav",
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-      "start_time": 17.804248522697605,
-      "speaker_id": "4363"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7448/laugh/0000.wav",
-      "duration": 1.32,
-      "start_time": 24.494320859770177,
-      "speaker_id": "7448"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053508.json b/conversations/conv_053508.json
deleted file mode 100644
index 70d352955831a26ebffdfe32e85736c27ab6d0a3..0000000000000000000000000000000000000000
--- a/conversations/conv_053508.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-      "speaker_id": 0,
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-      "real_speaker_id": "8080",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.08833867002065,
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-}
\ No newline at end of file
diff --git a/conversations/conv_053512.json b/conversations/conv_053512.json
deleted file mode 100644
index ebe3b5e144b57940e6042efb51dde844c78759e3..0000000000000000000000000000000000000000
--- a/conversations/conv_053512.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8466-285142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3235-11599.flac |",
-      "real_speaker_id": "3235",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8466-285142",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-285142.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 153363
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8466-274557",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8466-274557.flac |",
-      "real_speaker_id": "8466",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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\ No newline at end of file
diff --git a/conversations/conv_053515.json b/conversations/conv_053515.json
deleted file mode 100644
index 29f8752ec9e58525b24e4107fdb1d1a7c0796689..0000000000000000000000000000000000000000
--- a/conversations/conv_053515.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "246-122825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-122825.flac |",
-      "real_speaker_id": "246",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-224.flac |",
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-    },
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-      "real_speaker_id": "6641",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-122825.flac |",
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-      "position_frames": 59852
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-  ],
-  "background_events": [
-    {
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-      "speaker_id": "246"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053524.json b/conversations/conv_053524.json
deleted file mode 100644
index 13b98961d6e777514e544a48348ea2cbd032750b..0000000000000000000000000000000000000000
--- a/conversations/conv_053524.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "7278-104730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-104730.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5269-26555",
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-      "real_speaker_id": "5269",
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-      "utterance_id": "5206-19376",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5206-19376.flac |",
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-    {
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-      "start_time": 19.422724611322344,
-      "speaker_id": "5269"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053528.json b/conversations/conv_053528.json
deleted file mode 100644
index a1abfd80d1ad23e7cc4e043e72c009e2a99dd55d..0000000000000000000000000000000000000000
--- a/conversations/conv_053528.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.772067845560361,
-      "duration": 4.772067845560361,
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-      "duration_frames": 76353,
-      "overlap": false,
-      "utterance_id": "1970-26100",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-26100.flac |",
-      "real_speaker_id": "1970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.9513112863886946,
-      "end_time": 9.287307448346617,
-      "duration": 3.335996161957922,
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-      "duration_frames": 53375,
-      "overlap": false,
-      "utterance_id": "57-121742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121742.flac |",
-      "real_speaker_id": "57",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.418343725272212,
-      "end_time": 12.92548202588649,
-      "duration": 3.507138300614278,
-      "start_frame": 150693,
-      "duration_frames": 56114,
-      "overlap": false,
-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.437748107621562,
-      "end_time": 18.024345564779985,
-      "duration": 4.586597457158423,
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-      "utterance_id": "57-121074",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121074.flac |",
-      "real_speaker_id": "57",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.02651310113428,
-      "end_time": 25.285556194680964,
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-      "overlap": false,
-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 56114
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.203402566968165,
-      "end_time": 29.277369565389805,
-      "duration": 3.073966998421639,
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-      "duration_frames": 49183,
-      "overlap": false,
-      "utterance_id": "57-121742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/57-121742.flac |",
-      "real_speaker_id": "57",
-      "position_frames": 53375
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.16335862624328,
-      "end_time": 32.0,
-      "duration": 1.83664137375672,
-      "start_frame": 482613,
-      "duration_frames": 29386,
-      "overlap": false,
-      "utterance_id": "7561-258994",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7561-258994.flac |",
-      "real_speaker_id": "7561",
-      "position_frames": 156258
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_11.wav",
-      "duration": 0.5526303854875283,
-      "start_time": 7.4078317926381185
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-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_6.wav",
-      "duration": 2.188775510204082,
-      "start_time": 4.416185379328717
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1970/laugh/0112.wav",
-      "duration": 1.44,
-      "start_time": 0,
-      "speaker_id": "1970"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/57/cough/0096.wav",
-      "duration": 1.3991822035473784,
-      "start_time": 9.332723851187387,
-      "speaker_id": "57"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/cough/0000.wav",
-      "duration": 1.12,
-      "start_time": 10.25470434193566,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/cough/0032.wav",
-      "duration": 1.36,
-      "start_time": 22.526923405693978,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/laugh/0026.wav",
-      "duration": 1.56,
-      "start_time": 30.177532624137573,
-      "speaker_id": "7561"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7561/cough/0023.wav",
-      "duration": 0.92,
-      "start_time": 30.206250052472285,
-      "speaker_id": "7561"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053529.json b/conversations/conv_053529.json
deleted file mode 100644
index fe771182ff7c7c0e647e2e7aa6fa6913d6c4a98c..0000000000000000000000000000000000000000
--- a/conversations/conv_053529.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.951385950611993,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.382637506656222,
-      "duration": 3.382637506656222,
-      "start_frame": 0,
-      "duration_frames": 54122,
-      "overlap": false,
-      "utterance_id": "7062-75816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-75816.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.063609040264415,
-      "end_time": 8.01515366160515,
-      "duration": 3.9515446213407364,
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-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.944064298721065,
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-      "duration": 3.739452223544389,
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-      "duration_frames": 59831,
-      "overlap": false,
-      "utterance_id": "7062-80029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7062-80029.flac |",
-      "real_speaker_id": "7062",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.74557810252761,
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-      "overlap": true,
-      "utterance_id": "1289-288044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1289-288044.flac |",
-      "real_speaker_id": "1289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.28934325285337,
-      "end_time": 24.896312019844096,
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-      "duration_frames": 89711,
-      "overlap": true,
-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 63224
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.775051051289815,
-      "end_time": 31.951385950611993,
-      "duration": 6.17633489932218,
-      "start_frame": 412400,
-      "duration_frames": 98821,
-      "overlap": false,
-      "utterance_id": "6807-105654",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6807-105654.flac |",
-      "real_speaker_id": "6807",
-      "position_frames": 152935
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
-      "duration": 2.6846350347189762,
-      "start_time": 18.263801120736904
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20097_1.wav",
-      "duration": 0.21675736961451247,
-      "start_time": 13.74859494784699
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6807/laugh/0138.wav",
-      "duration": 0.98,
-      "start_time": 6.23796216971872,
-      "speaker_id": "6807"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 0.6310104516286927,
-      "start_time": 12.703992956701438,
-      "speaker_id": "7062"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6807/laugh/0162.wav",
-      "duration": 0.96,
-      "start_time": 18.12779676898213,
-      "speaker_id": "6807"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6807/laugh/0115.wav",
-      "duration": 1.44,
-      "start_time": 30.33314105871647,
-      "speaker_id": "6807"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053532.json b/conversations/conv_053532.json
deleted file mode 100644
index c0853c9d8910867b5bebc34bad9e3933b1740533..0000000000000000000000000000000000000000
--- a/conversations/conv_053532.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "duration_frames": 90934,
-      "overlap": false,
-      "utterance_id": "1633-180292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-180292.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.331122976281305,
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-      "utterance_id": "1633-141580",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-141580.flac |",
-      "real_speaker_id": "1633",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.558410278293575,
-      "end_time": 21.840351246043703,
-      "duration": 6.281940967750128,
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-      "duration_frames": 100511,
-      "overlap": false,
-      "utterance_id": "1633-180292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1633-180292.flac |",
-      "real_speaker_id": "1633",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "7608-115034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7608-115034.flac |",
-      "real_speaker_id": "7608",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.956044462800655,
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-      "overlap": false,
-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 51820
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_4.wav",
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1633/laugh/0108.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1740/laugh/0056.wav",
-      "duration": 1.12,
-      "start_time": 15.364234266140809,
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-    {
-      "event_class": "cough",
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-    {
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-    {
-      "event_class": "cough",
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-      "speaker_id": "1740"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053539.json b/conversations/conv_053539.json
deleted file mode 100644
index 49b281bb2130b9ee0ead9be185b0a56fdb36c6aa..0000000000000000000000000000000000000000
--- a/conversations/conv_053539.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 4.4908752546706445,
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-      "overlap": false,
-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
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-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "7030-64588",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
-      "real_speaker_id": "3876",
-      "position_frames": 76252
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7030-64588.flac |",
-      "real_speaker_id": "7030",
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-      "segment_id": "seg0006",
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-      "start_time": 29.68866091586395,
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-  "background_events": [],
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-      "speaker_id": "7030"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053542.json b/conversations/conv_053542.json
deleted file mode 100644
index 4ff210685355e617c56863bde86281afab229700..0000000000000000000000000000000000000000
--- a/conversations/conv_053542.json
+++ /dev/null
@@ -1,96 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.76247701116951,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1132-138883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-138883.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.76077348837208,
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-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.31682634097719,
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-      "utterance_id": "5023-33399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5023-33399.flac |",
-      "real_speaker_id": "5023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.854121260334416,
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-      "utterance_id": "7085-75807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7085-75807.flac |",
-      "real_speaker_id": "7085",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1132-138883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1132-138883.flac |",
-      "real_speaker_id": "1132",
-      "position_frames": 64952
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
-      "duration": 0.23598639455782314,
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5023/laugh/0117.wav",
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-      "speaker_id": "5023"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053545.json b/conversations/conv_053545.json
deleted file mode 100644
index e32528fba87eda708478f000727779469738f82a..0000000000000000000000000000000000000000
--- a/conversations/conv_053545.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6426-64292.flac |",
-      "real_speaker_id": "6426",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161975.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-155646.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
-      "real_speaker_id": "1252",
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-155646.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 86343
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
-      "real_speaker_id": "1252",
-      "position_frames": 85515
-    },
-    {
-      "segment_id": "seg0006",
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-      "start_time": 30.92595491410934,
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-      "utterance_id": "1923-161975",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1923-161975.flac |",
-      "real_speaker_id": "1923",
-      "position_frames": 75655
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "1923"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053549.json b/conversations/conv_053549.json
deleted file mode 100644
index 91f939314b02e3d7347e339c15b856061542be22..0000000000000000000000000000000000000000
--- a/conversations/conv_053549.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "duration": 4.056477036154726,
-      "start_frame": 0,
-      "duration_frames": 64903,
-      "overlap": false,
-      "utterance_id": "4257-6397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.360397384880203,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3526-175658.flac |",
-      "real_speaker_id": "3526",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
-      "position_frames": 64903
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3526-176653.flac |",
-      "real_speaker_id": "3526",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 19.508616859140336,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
-      "position_frames": 127190
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 101919,
-      "overlap": false,
-      "utterance_id": "3526-176653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3526-176653.flac |",
-      "real_speaker_id": "3526",
-      "position_frames": 61131
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "4257-6397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4257-6397.flac |",
-      "real_speaker_id": "4257",
-      "position_frames": 194656
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3526/laugh/0091.wav",
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-    {
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-      "duration": 0.98,
-      "start_time": 31.02,
-      "speaker_id": "4257"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053553.json b/conversations/conv_053553.json
deleted file mode 100644
index bb00bd98b8357002a442f8f78c761c05d71db871..0000000000000000000000000000000000000000
--- a/conversations/conv_053553.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "3227-24788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3227-24788.flac |",
-      "real_speaker_id": "3227",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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\ No newline at end of file
diff --git a/conversations/conv_053554.json b/conversations/conv_053554.json
deleted file mode 100644
index 6fc40519dc8c05bacc049068aadde475c5f62416..0000000000000000000000000000000000000000
--- a/conversations/conv_053554.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8494",
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_053565.json b/conversations/conv_053565.json
deleted file mode 100644
index 1b665e8a9cd59dee25f1e47167443a14ae9d6691..0000000000000000000000000000000000000000
--- a/conversations/conv_053565.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_053569.json b/conversations/conv_053569.json
deleted file mode 100644
index a6913cdd3433e2fe5b0f5347f6258b59e04c2d9a..0000000000000000000000000000000000000000
--- a/conversations/conv_053569.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
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-  "foreground_events": [
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-      "duration": 1.46,
-      "start_time": 15.006534836873726,
-      "speaker_id": "1773"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5911/cough/0043.wav",
-      "duration": 1.16,
-      "start_time": 27.933587967312853,
-      "speaker_id": "5911"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053573.json b/conversations/conv_053573.json
deleted file mode 100644
index dd959f39daade7067d80e93189da6600b185d265..0000000000000000000000000000000000000000
--- a/conversations/conv_053573.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.091502522373446,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "3703-71531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274163.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "utterance_id": "7879-274136",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7879-274136.flac |",
-      "real_speaker_id": "7879",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.868687978829847,
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-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.488658119348045,
-      "end_time": 29.57497693405124,
-      "duration": 6.086318814703194,
-      "start_frame": 375818,
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-      "overlap": false,
-      "utterance_id": "3703-71531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3703-71531.flac |",
-      "real_speaker_id": "3703",
-      "position_frames": 69629
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.04699353188524,
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-      "overlap": true,
-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 69176
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053586.json b/conversations/conv_053586.json
deleted file mode 100644
index 911bd8757a85fcfa5011889c16cfebd1ad29a7e3..0000000000000000000000000000000000000000
--- a/conversations/conv_053586.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6184-57833.flac |",
-      "real_speaker_id": "6184",
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-      "real_speaker_id": "177",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4742-41609.flac |",
-      "real_speaker_id": "4742",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 31.0801180183463,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/177-55218.flac |",
-      "real_speaker_id": "177",
-      "position_frames": 111682
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-  ],
-  "background_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053590.json b/conversations/conv_053590.json
deleted file mode 100644
index 0acc3ed126005f64d28e6675df79030bc1c44b1d..0000000000000000000000000000000000000000
--- a/conversations/conv_053590.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_053600.json b/conversations/conv_053600.json
deleted file mode 100644
index 769e6f6aa771e0b1d3082087192470e3d05d70d3..0000000000000000000000000000000000000000
--- a/conversations/conv_053600.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4463/laugh/0003.wav",
-      "duration": 1.2,
-      "start_time": 12.579448959402251,
-      "speaker_id": "4463"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053601.json b/conversations/conv_053601.json
deleted file mode 100644
index 9c9e3fa79960a369174897930dda457725743317..0000000000000000000000000000000000000000
--- a/conversations/conv_053601.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.785401781577598,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.921940672787323,
-      "duration": 4.921940672787323,
-      "start_frame": 0,
-      "duration_frames": 78751,
-      "overlap": false,
-      "utterance_id": "5809-51163",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51163.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.130210545051686,
-      "end_time": 9.59003990112232,
-      "duration": 3.4598293560706352,
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-      "overlap": false,
-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.394683490419874,
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-      "duration": 6.631891197226796,
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-      "duration_frames": 106110,
-      "overlap": false,
-      "utterance_id": "5809-51162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-51162.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.01884569227929,
-      "end_time": 23.494188480399423,
-      "duration": 5.475342788120132,
-      "start_frame": 288301,
-      "duration_frames": 87605,
-      "overlap": false,
-      "utterance_id": "6963-81511",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6963-81511.flac |",
-      "real_speaker_id": "6963",
-      "position_frames": 55357
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.127278503462424,
-      "end_time": 29.60286895003894,
-      "duration": 5.475590446576515,
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-      "duration_frames": 87609,
-      "overlap": false,
-      "utterance_id": "4290-7622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4290-7622.flac |",
-      "real_speaker_id": "4290",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.731864442479896,
-      "end_time": 31.785401781577598,
-      "duration": 2.0535373390977014,
-      "start_frame": 475709,
-      "duration_frames": 32856,
-      "overlap": true,
-      "utterance_id": "5809-58763",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5809-58763.flac |",
-      "real_speaker_id": "5809",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/35872.wav",
-      "duration": 11.450680272108844,
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5809/laugh/0100.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 0.07981936061584645,
-      "speaker_id": "5809"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6963/laugh/0079.wav",
-      "duration": 1.2361738708914487,
-      "start_time": 9.631085354430484,
-      "speaker_id": "6963"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6963/cough/0076.wav",
-      "duration": 0.8813008459289129,
-      "start_time": 19.403228784993715,
-      "speaker_id": "6963"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4290/laugh/0007.wav",
-      "duration": 0.98,
-      "start_time": 29.649523607661926,
-      "speaker_id": "4290"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053617.json b/conversations/conv_053617.json
deleted file mode 100644
index 5468b47a1e7c7db7db3ca303b09709800fba7d4e..0000000000000000000000000000000000000000
--- a/conversations/conv_053617.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.342514299476388,
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-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.562928623572822,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-126336.flac |",
-      "real_speaker_id": "480",
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 85480
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.243418630232174,
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-      "overlap": false,
-      "utterance_id": "1383-130489",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130489.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.537951152037355,
-      "end_time": 26.848851360515788,
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-      "overlap": false,
-      "utterance_id": "5735-48575",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5735-48575.flac |",
-      "real_speaker_id": "5735",
-      "position_frames": 160538
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.69816734502699,
-      "end_time": 32.0,
-      "duration": 4.301832654973008,
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-      "utterance_id": "480-127525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/480-127525.flac |",
-      "real_speaker_id": "480",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_13.wav",
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/79440_0.wav",
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-      "start_time": 25.463934201952625
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/480/laugh/0062.wav",
-      "duration": 0.6447465715721051,
-      "start_time": 9.85002732147959,
-      "speaker_id": "480"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5735/cough/0054.wav",
-      "duration": 0.4427922742479852,
-      "start_time": 21.815247744383747,
-      "speaker_id": "5735"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053621.json b/conversations/conv_053621.json
deleted file mode 100644
index cd7131ddb24906edab1a5a6280932e90b6006570..0000000000000000000000000000000000000000
--- a/conversations/conv_053621.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.734031226168106,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8625-268295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-268295.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 3.786759830629411,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-268295.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 63898
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 10.76997618558146,
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-      "utterance_id": "8033-283463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-283463.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.91525686176338,
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-      "utterance_id": "8625-268295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8625-268295.flac |",
-      "real_speaker_id": "8625",
-      "position_frames": 151713
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.918123326199474,
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-      "duration_frames": 73003,
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-      "utterance_id": "8033-284029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-284029.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.683652942098746,
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-      "utterance_id": "8033-284029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-284029.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 73003
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "8625"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053637.json b/conversations/conv_053637.json
deleted file mode 100644
index 25df273b4377a800cb6f0751daacea78852317af..0000000000000000000000000000000000000000
--- a/conversations/conv_053637.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 6.116527644001149,
-      "start_frame": 0,
-      "duration_frames": 97864,
-      "overlap": false,
-      "utterance_id": "2003-143254",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "end_time": 11.368231951319348,
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-      "utterance_id": "2007-132570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2007-132570.flac |",
-      "real_speaker_id": "2007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.076418934914084,
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-      "duration_frames": 102432,
-      "overlap": false,
-      "utterance_id": "4111-184447",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4111-184447.flac |",
-      "real_speaker_id": "4111",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.70526611584223,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2003-143254.flac |",
-      "real_speaker_id": "2003",
-      "position_frames": 97864
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "position_frames": 102432
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2007-149877",
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-      "real_speaker_id": "2007",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371913_1.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053640.json b/conversations/conv_053640.json
deleted file mode 100644
index 9d5d4f2f80a14e73a5a8498db4f97deb57962be1..0000000000000000000000000000000000000000
--- a/conversations/conv_053640.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.058626101253562,
-      "duration": 5.058626101253562,
-      "start_frame": 0,
-      "duration_frames": 80938,
-      "overlap": false,
-      "utterance_id": "7942-283384",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-283384.flac |",
-      "real_speaker_id": "7942",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.785237589358258,
-      "end_time": 10.962672095530618,
-      "duration": 5.177434506172359,
-      "start_frame": 92563,
-      "duration_frames": 82838,
-      "overlap": false,
-      "utterance_id": "797-127183",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127183.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.288780860952844,
-      "end_time": 15.922778210712181,
-      "duration": 4.633997349759338,
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-      "duration_frames": 74143,
-      "overlap": false,
-      "utterance_id": "7942-292240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-292240.flac |",
-      "real_speaker_id": "7942",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.164403519452232,
-      "end_time": 22.76409762255581,
-      "duration": 6.599694103103575,
-      "start_frame": 258630,
-      "duration_frames": 105595,
-      "overlap": false,
-      "utterance_id": "797-127182",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/797-127182.flac |",
-      "real_speaker_id": "797",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.824516751445156,
-      "end_time": 28.52219329024208,
-      "duration": 4.697676538796922,
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-      "duration_frames": 75162,
-      "overlap": false,
-      "utterance_id": "6359-64713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
-      "real_speaker_id": "6359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.414066945471053,
-      "end_time": 32.0,
-      "duration": 2.5859330545289474,
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-      "utterance_id": "7942-283400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7942-283400.flac |",
-      "real_speaker_id": "7942",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
-      "duration": 1.83578231292517,
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-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6359/cough/0061.wav",
-      "duration": 0.6217412977474607,
-      "start_time": 23.13978419708399,
-      "speaker_id": "6359"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053656.json b/conversations/conv_053656.json
deleted file mode 100644
index 1d707c89d8f3adce02f682d460d661d786bd925c..0000000000000000000000000000000000000000
--- a/conversations/conv_053656.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.705651482685617,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.469405145075811,
-      "duration": 4.469405145075811,
-      "start_frame": 0,
-      "duration_frames": 71510,
-      "overlap": false,
-      "utterance_id": "6227-60173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-60173.flac |",
-      "real_speaker_id": "6227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.008977444441198,
-      "end_time": 11.141396609703637,
-      "duration": 6.13241916526244,
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-      "utterance_id": "868-131295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131295.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "3969-6872",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-6872.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.472354060302838,
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-      "duration": 6.1251223092839835,
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-      "overlap": false,
-      "utterance_id": "6227-36632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6227-36632.flac |",
-      "real_speaker_id": "6227",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.289661154871915,
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-      "overlap": true,
-      "utterance_id": "3969-175415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3969-175415.flac |",
-      "real_speaker_id": "3969",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.85895025809733,
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-      "overlap": false,
-      "utterance_id": "868-131295",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131295.flac |",
-      "real_speaker_id": "868",
-      "position_frames": 98118
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_4.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3969/cough/0066.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6227/cough/0079.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3969/laugh/0068.wav",
-      "duration": 1.7130187095565506,
-      "start_time": 20.4684611640377,
-      "speaker_id": "3969"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053657.json b/conversations/conv_053657.json
deleted file mode 100644
index 6aced7b93f94febf06e5745914d0589903ae356c..0000000000000000000000000000000000000000
--- a/conversations/conv_053657.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.233285946297328,
-      "duration": 4.233285946297328,
-      "start_frame": 0,
-      "duration_frames": 67732,
-      "overlap": false,
-      "utterance_id": "6199-64259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-64259.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.745508799422046,
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-      "duration": 5.502397968306496,
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-      "duration_frames": 88038,
-      "overlap": false,
-      "utterance_id": "3816-290923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-290923.flac |",
-      "real_speaker_id": "3816",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "6199-64259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6199-64259.flac |",
-      "real_speaker_id": "6199",
-      "position_frames": 67732
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "duration_frames": 77444,
-      "overlap": false,
-      "utterance_id": "3816-19585",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-19585.flac |",
-      "real_speaker_id": "3816",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.31031081915163,
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-      "overlap": false,
-      "utterance_id": "6082-56174",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6082-56174.flac |",
-      "real_speaker_id": "6082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.21571161123855,
-      "end_time": 32.0,
-      "duration": 3.78428838876145,
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-      "duration_frames": 60548,
-      "overlap": false,
-      "utterance_id": "3816-19585",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3816-19585.flac |",
-      "real_speaker_id": "3816",
-      "position_frames": 77444
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "duration": 1.12,
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-      "speaker_id": "3816"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053660.json b/conversations/conv_053660.json
deleted file mode 100644
index c7e36f8b8e1812244a1b6099c26f0249c226b84b..0000000000000000000000000000000000000000
--- a/conversations/conv_053660.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5196683254247167,
-      "duration": 3.5196683254247167,
-      "start_frame": 0,
-      "duration_frames": 56314,
-      "overlap": false,
-      "utterance_id": "7867-110742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110742.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.998146884509666,
-      "end_time": 7.9660232342723045,
-      "duration": 3.967876349762639,
-      "start_frame": 63970,
-      "duration_frames": 63486,
-      "overlap": false,
-      "utterance_id": "2397-162239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2397-162239.flac |",
-      "real_speaker_id": "2397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.224966135037526,
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-      "utterance_id": "7867-110742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7867-110742.flac |",
-      "real_speaker_id": "7867",
-      "position_frames": 56314
-    },
-    {
-      "segment_id": "seg0003",
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-      "overlap": false,
-      "utterance_id": "2397-162238",
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-      "real_speaker_id": "2397",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-      "position_frames": 116268
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "4583",
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-    {
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-      "start_time": 29.06852968641624,
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-      "real_speaker_id": "2397",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053676.json b/conversations/conv_053676.json
deleted file mode 100644
index e382d6c819763b0c6f1ac559b2fbe8ce18e7381f..0000000000000000000000000000000000000000
--- a/conversations/conv_053676.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.995341543137901,
-      "duration": 5.995341543137901,
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-      "overlap": false,
-      "utterance_id": "5979-42005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42005.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.766217483609381,
-      "end_time": 11.343078004943262,
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-      "utterance_id": "3228-4687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3228-4687.flac |",
-      "real_speaker_id": "3228",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.74344322162403,
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-      "duration": 5.351750607337503,
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-      "overlap": true,
-      "utterance_id": "1081-125237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-125237.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.882274038631373,
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-      "utterance_id": "5979-42002",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42002.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.270553695026155,
-      "end_time": 26.53757725806763,
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-      "utterance_id": "1081-125237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-125237.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 85628
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.45813157273567,
-      "end_time": 29.537393017644757,
-      "duration": 3.0792614449090863,
-      "start_frame": 423330,
-      "duration_frames": 49268,
-      "overlap": true,
-      "utterance_id": "5979-42000",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5979-42000.flac |",
-      "real_speaker_id": "5979",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.73680321599756,
-      "end_time": 32.0,
-      "duration": 1.2631967840024387,
-      "start_frame": 491788,
-      "duration_frames": 20211,
-      "overlap": false,
-      "utterance_id": "1081-128618",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1081-128618.flac |",
-      "real_speaker_id": "1081",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "start_time": 17.247597396110777,
-      "speaker_id": "5979"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053683.json b/conversations/conv_053683.json
deleted file mode 100644
index a9ef11255fd42d14ddb8a98b0656a2d2fc9f9844..0000000000000000000000000000000000000000
--- a/conversations/conv_053683.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1765-143010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1765-143010.flac |",
-      "real_speaker_id": "1765",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.551266297668277,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1765-143010.flac |",
-      "real_speaker_id": "1765",
-      "position_frames": 74751
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "7957-39967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7957-39967.flac |",
-      "real_speaker_id": "7957",
-      "position_frames": 67418
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "duration_frames": 94251,
-      "overlap": true,
-      "utterance_id": "5720-48807",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5720-48807.flac |",
-      "real_speaker_id": "5720",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.872101330412274,
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-      "duration": 3.1278986695877258,
-      "start_frame": 461953,
-      "duration_frames": 50046,
-      "overlap": false,
-      "utterance_id": "1765-143010",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1765-143010.flac |",
-      "real_speaker_id": "1765",
-      "position_frames": 172366
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1765/cough/0014.wav",
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-      "start_time": 4.793097183019873,
-      "speaker_id": "1765"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7957/laugh/0048.wav",
-      "duration": 1.28,
-      "start_time": 9.805150601953667,
-      "speaker_id": "7957"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5720/laugh/0025.wav",
-      "duration": 1.06,
-      "start_time": 25.096022701022434,
-      "speaker_id": "5720"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1765/laugh/0010.wav",
-      "duration": 0.6207106436152394,
-      "start_time": 31.37928935638476,
-      "speaker_id": "1765"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053684.json b/conversations/conv_053684.json
deleted file mode 100644
index 7d89340a484853d6f38c46e17fad219870b87c30..0000000000000000000000000000000000000000
--- a/conversations/conv_053684.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/464-126794.flac |",
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-    {
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-      "real_speaker_id": "3148",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2895-8663.flac |",
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-      "segment_id": "seg0005",
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-    {
-      "segment_id": "seg0006",
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-  ],
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2895/laugh/0025.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053692.json b/conversations/conv_053692.json
deleted file mode 100644
index a269173c25c005f6db965b5ed119633514b69a37..0000000000000000000000000000000000000000
--- a/conversations/conv_053692.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "4771-29406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4771-29406.flac |",
-      "real_speaker_id": "4771",
-      "position_frames": 0
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-  "background_events": [
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-      "start_time": 30.115447125950737,
-      "speaker_id": "7307"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053695.json b/conversations/conv_053695.json
deleted file mode 100644
index ace10f6b1583829fe42d3aba3c5ef794258f5d45..0000000000000000000000000000000000000000
--- a/conversations/conv_053695.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.813242320391783,
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-      "duration": 3.2119070870537,
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-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 0
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-      "utterance_id": "1777-142750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142750.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.367871846539458,
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 87545
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.81663449557215,
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-      "utterance_id": "1777-142750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1777-142750.flac |",
-      "real_speaker_id": "1777",
-      "position_frames": 93828
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3540-163612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3540-163612.flac |",
-      "real_speaker_id": "3540",
-      "position_frames": 187235
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366512.wav",
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-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "3540"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053699.json b/conversations/conv_053699.json
deleted file mode 100644
index f32690b3bc9276c18e9b1d32b6c465a7b394bdf7..0000000000000000000000000000000000000000
--- a/conversations/conv_053699.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-174461.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-174461.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.327824512389146,
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-      "utterance_id": "1492-11251",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1492-11251.flac |",
-      "real_speaker_id": "1492",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_053705.json b/conversations/conv_053705.json
deleted file mode 100644
index f66cd4910041a576345adbd050bfa117bd6d3eb1..0000000000000000000000000000000000000000
--- a/conversations/conv_053705.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "868-131296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/868-131296.flac |",
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-      "position_frames": 0
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-    },
-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "8675",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053709.json b/conversations/conv_053709.json
deleted file mode 100644
index 201eeacef210fa134387a597a41055e6b157c582..0000000000000000000000000000000000000000
--- a/conversations/conv_053709.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6377-34630",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6377-34630.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "3088-5436",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3088-5436.flac |",
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-    {
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-      "speaker_id": "6377"
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-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 11.172823301450961,
-      "speaker_id": "5985"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3088/laugh/0066.wav",
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-      "start_time": 16.778620695233997,
-      "speaker_id": "3088"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3088/laugh/0001.wav",
-      "duration": 1.0009735058598972,
-      "start_time": 30.999026494140104,
-      "speaker_id": "3088"
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-      "event_class": "cough",
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-      "speaker_id": "3088"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053712.json b/conversations/conv_053712.json
deleted file mode 100644
index 6dc765338e91753de6132659d0918266066e1909..0000000000000000000000000000000000000000
--- a/conversations/conv_053712.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.100819357744048,
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-      "overlap": false,
-      "utterance_id": "6317-54487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6317-54487.flac |",
-      "real_speaker_id": "6317",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.726503445478898,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6317-54487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6317-54487.flac |",
-      "real_speaker_id": "6317",
-      "position_frames": 65613
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.168076740417295,
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-      "start_frame": 226689,
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-      "overlap": false,
-      "utterance_id": "1851-151817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.469503330680443,
-      "end_time": 26.36894058249782,
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-      "overlap": false,
-      "utterance_id": "1851-148312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148312.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.72512809080118,
-      "end_time": 32.0,
-      "duration": 5.2748719091988185,
-      "start_frame": 427602,
-      "duration_frames": 84397,
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-      "utterance_id": "6317-54487",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6317-54487.flac |",
-      "real_speaker_id": "6317",
-      "position_frames": 142815
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/91520.wav",
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-    {
-      "event_class": "Blender",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0,
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-      "event_class": "cough",
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-      "start_time": 31.06634381824489,
-      "speaker_id": "6317"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053713.json b/conversations/conv_053713.json
deleted file mode 100644
index 5acf6d64d4f2ce7df36c987e5b009f0cfcfcd722..0000000000000000000000000000000000000000
--- a/conversations/conv_053713.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.239476483853025,
-  "num_speakers": 3,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "4734-220951",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220951.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.6066598020949705,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4513-16024.flac |",
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-      "position_frames": 0
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-      "utterance_id": "2920-156224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156224.flac |",
-      "real_speaker_id": "2920",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.96722945839349,
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-      "duration": 6.803629784068081,
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-      "overlap": false,
-      "utterance_id": "4734-220952",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4734-220952.flac |",
-      "real_speaker_id": "4734",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.378811608798465,
-      "end_time": 31.239476483853025,
-      "duration": 6.86066487505456,
-      "start_frame": 390060,
-      "duration_frames": 109770,
-      "overlap": true,
-      "utterance_id": "2920-156224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2920-156224.flac |",
-      "real_speaker_id": "2920",
-      "position_frames": 89106
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_0.wav",
-      "duration": 0.2146485260770975,
-      "start_time": 9.977513897913692
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4734/laugh/0086.wav",
-      "duration": 1.14,
-      "start_time": 0,
-      "speaker_id": "4734"
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-    {
-      "event_class": "cough",
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-      "duration": 1.26,
-      "start_time": 5.596410819174066,
-      "speaker_id": "4734"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4513/laugh/0025.wav",
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-      "speaker_id": "4513"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2920/laugh/0066.wav",
-      "duration": 0.96,
-      "start_time": 23.21237981404125,
-      "speaker_id": "2920"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053725.json b/conversations/conv_053725.json
deleted file mode 100644
index cc83ad11600ce451e90bdb51c78cb947677a509b..0000000000000000000000000000000000000000
--- a/conversations/conv_053725.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.941539094102172,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "2388-153733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153733.flac |",
-      "real_speaker_id": "2388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "2388-153728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153728.flac |",
-      "real_speaker_id": "2388",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.720443400972364,
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-      "utterance_id": "3060-163540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3060-163540.flac |",
-      "real_speaker_id": "3060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.890709483819695,
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-      "duration_frames": 87964,
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-      "utterance_id": "2388-153731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2388-153731.flac |",
-      "real_speaker_id": "2388",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "3060-163499",
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-      "real_speaker_id": "3060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "3245-62828",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3245-62828.flac |",
-      "real_speaker_id": "3245",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "event_class": "Dishes",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "3060"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053729.json b/conversations/conv_053729.json
deleted file mode 100644
index ad86d27e8f527fe012a0abe5d5595f9acb705df1..0000000000000000000000000000000000000000
--- a/conversations/conv_053729.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.672669257261713,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "1594-135914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8587",
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-    {
-      "segment_id": "seg0002",
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-    {
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-      "position_frames": 188810
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "end_time": 29.022388014712277,
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-      "utterance_id": "8587-295533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295533.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 68778
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1594-135914.flac |",
-      "real_speaker_id": "1594",
-      "position_frames": 275507
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/187340.wav",
-      "duration": 4.6117219783026915,
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/362765_3.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8587/laugh/0013.wav",
-      "duration": 1.28,
-      "start_time": 21.91721258888705,
-      "speaker_id": "8587"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053733.json b/conversations/conv_053733.json
deleted file mode 100644
index 03039865431cd2af8216fa7e94b89d177adbf4b9..0000000000000000000000000000000000000000
--- a/conversations/conv_053733.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.734226672564189,
-      "duration": 6.734226672564189,
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-      "overlap": false,
-      "utterance_id": "7012-81370",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7012-81370.flac |",
-      "real_speaker_id": "7012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.0953330790189675,
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-      "utterance_id": "2531-156720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156720.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.519184900809067,
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-      "utterance_id": "7012-82949",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7012-82949.flac |",
-      "real_speaker_id": "7012",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.87617903551221,
-      "end_time": 22.62354295275319,
-      "duration": 4.747363917240981,
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-      "utterance_id": "2531-156720",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2531-156720.flac |",
-      "real_speaker_id": "2531",
-      "position_frames": 84148
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.376973031936025,
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-      "overlap": false,
-      "utterance_id": "8443-274756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-274756.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.749022691320192,
-      "end_time": 32.0,
-      "duration": 3.2509773086798077,
-      "start_frame": 459984,
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-      "overlap": false,
-      "utterance_id": "8443-294707",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8443-294707.flac |",
-      "real_speaker_id": "8443",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "event_class": "laugh",
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-      "duration": 1.04,
-      "start_time": 17.397902999680593,
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-    {
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-      "duration": 1.16,
-      "start_time": 20.144658843425912,
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8443"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053738.json b/conversations/conv_053738.json
deleted file mode 100644
index 9e1ee4e0305c28dc11705fc2e277fafa5e42280d..0000000000000000000000000000000000000000
--- a/conversations/conv_053738.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8791-291101",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8791-291101.flac |",
-      "real_speaker_id": "8791",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-73020.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3546-175390.flac |",
-      "real_speaker_id": "3546",
-      "position_frames": 127523
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 0
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-  "background_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 9.499501658891766,
-      "speaker_id": "6506"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053744.json b/conversations/conv_053744.json
deleted file mode 100644
index 5a164b12164675a190dc15125e14a58e8f7496c4..0000000000000000000000000000000000000000
--- a/conversations/conv_053744.json
+++ /dev/null
@@ -1,103 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.51777335278653,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "utterance_id": "5506-69896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5506-69896.flac |",
-      "real_speaker_id": "5506",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "1748",
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-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-      "speaker_id": 2,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053745.json b/conversations/conv_053745.json
deleted file mode 100644
index c3cb9c3c018d07bc69788ebdd04d01b362546889..0000000000000000000000000000000000000000
--- a/conversations/conv_053745.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "8725-294551",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1392",
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-      "utterance_id": "8725-294554",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_053748.json b/conversations/conv_053748.json
deleted file mode 100644
index 56e3ef103442a9f9a0c0c55ef09db910cc3bb933..0000000000000000000000000000000000000000
--- a/conversations/conv_053748.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_053752.json b/conversations/conv_053752.json
deleted file mode 100644
index e0ef74296110d6a797fb77cbf10cb172415ac832..0000000000000000000000000000000000000000
--- a/conversations/conv_053752.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "583",
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\ No newline at end of file
diff --git a/conversations/conv_053764.json b/conversations/conv_053764.json
deleted file mode 100644
index 95457a1ebab22f1cd3d4bbcb8a0eeb9d0cf0ae94..0000000000000000000000000000000000000000
--- a/conversations/conv_053764.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_053768.json b/conversations/conv_053768.json
deleted file mode 100644
index c3dc2f6b95d3af047928b9cf5cf61ccb964d39b1..0000000000000000000000000000000000000000
--- a/conversations/conv_053768.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6724-73991.flac |",
-      "real_speaker_id": "6724",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053772.json b/conversations/conv_053772.json
deleted file mode 100644
index 90bc08b84a151728082ddb5830d1cba8e360acbe..0000000000000000000000000000000000000000
--- a/conversations/conv_053772.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
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-      "real_speaker_id": "1968",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
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-      "speaker_id": 2,
-      "start_time": 22.911814477414193,
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-      "overlap": false,
-      "utterance_id": "1968-145732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1968-145732.flac |",
-      "real_speaker_id": "1968",
-      "position_frames": 71626
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 4.054975291364464,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 97069
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-      "start_time": 22.05317300926211,
-      "speaker_id": "1968"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053779.json b/conversations/conv_053779.json
deleted file mode 100644
index 93287ed746dad268b29406e72fb369e93774f3c7..0000000000000000000000000000000000000000
--- a/conversations/conv_053779.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6513-71944.flac |",
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-      "real_speaker_id": "4848",
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-      "start_time": 20.43987516946121,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1903-132499.flac |",
-      "real_speaker_id": "1903",
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-      "real_speaker_id": "4848",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "1903-132499",
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-      "speaker_id": "4848"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053780.json b/conversations/conv_053780.json
deleted file mode 100644
index 83d800df683be692944011b43148422dfd7a4bc5..0000000000000000000000000000000000000000
--- a/conversations/conv_053780.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "207-131203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-131203.flac |",
-      "real_speaker_id": "207",
-      "position_frames": 0
-    },
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-      "position_frames": 0
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-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
-      "real_speaker_id": "1495",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2545-135235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
-      "position_frames": 59293
-    },
-    {
-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-131203.flac |",
-      "real_speaker_id": "207",
-      "position_frames": 61976
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 0,
-      "start_time": 31.28141811206115,
-      "end_time": 32.0,
-      "duration": 0.7185818879388499,
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-      "duration_frames": 11497,
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-      "utterance_id": "2545-135235",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2545-135235.flac |",
-      "real_speaker_id": "2545",
-      "position_frames": 118232
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/378308.wav",
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-  "paralinguistic_events": [
-    {
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.44,
-      "start_time": 30.56,
-      "speaker_id": "2545"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053787.json b/conversations/conv_053787.json
deleted file mode 100644
index 7e68bcc7b722ccf57a195a2d306c677f09163602..0000000000000000000000000000000000000000
--- a/conversations/conv_053787.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_053791.json b/conversations/conv_053791.json
deleted file mode 100644
index 334319e5c660a6be538a4d0c6c71ff6413b90244..0000000000000000000000000000000000000000
--- a/conversations/conv_053791.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "real_speaker_id": "5355",
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\ No newline at end of file
diff --git a/conversations/conv_053796.json b/conversations/conv_053796.json
deleted file mode 100644
index 26223c564f161739578a03f29a8005d3ebf6b00b..0000000000000000000000000000000000000000
--- a/conversations/conv_053796.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
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-}
\ No newline at end of file
diff --git a/conversations/conv_053800.json b/conversations/conv_053800.json
deleted file mode 100644
index b57f118ec0e79f41dbbdcce81e8d3d6606579e3c..0000000000000000000000000000000000000000
--- a/conversations/conv_053800.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1025/laugh/0094.wav",
-      "duration": 0.7021070112576255,
-      "start_time": 5.359107390536321,
-      "speaker_id": "1025"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4193/laugh/0129.wav",
-      "duration": 1.0404252325379573,
-      "start_time": 16.714052609401012,
-      "speaker_id": "4193"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053807.json b/conversations/conv_053807.json
deleted file mode 100644
index 3207286c02354723e062bcb9376c3ac06fd27e70..0000000000000000000000000000000000000000
--- a/conversations/conv_053807.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.530533106923883,
-      "duration": 5.530533106923883,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "3493-17615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-17615.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.685778735723157,
-      "end_time": 11.742087539385697,
-      "duration": 5.05630880366254,
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-      "overlap": false,
-      "utterance_id": "253-126864",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/253-126864.flac |",
-      "real_speaker_id": "253",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.499177160945585,
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-      "duration_frames": 73070,
-      "overlap": false,
-      "utterance_id": "3493-17615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-17615.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 88488
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 16.925902244084426,
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-      "overlap": true,
-      "utterance_id": "5636-41790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41790.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.303956346862446,
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-      "utterance_id": "3493-17615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-17615.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 161558
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.31994849747533,
-      "end_time": 30.160398485032225,
-      "duration": 3.840449987556896,
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-      "duration_frames": 61447,
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-      "utterance_id": "5636-57477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-57477.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.336780000193087,
-      "end_time": 32.0,
-      "duration": 1.6632199998069126,
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-      "utterance_id": "3493-17615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-17615.flac |",
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-      "position_frames": 223768
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152532.wav",
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3493/cough/0015.wav",
-      "duration": 1.08,
-      "start_time": 29.07446805926658,
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-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053811.json b/conversations/conv_053811.json
deleted file mode 100644
index e3cd1fd173dee381f6c07fd9132160b4ece1d7c8..0000000000000000000000000000000000000000
--- a/conversations/conv_053811.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8023-286250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286250.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
-      "start_time": 7.228706783993751,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286250.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 89882
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/366-126663.flac |",
-      "real_speaker_id": "366",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.604865216490474,
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-      "start_frame": 297677,
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-      "overlap": false,
-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.25836664360424,
-      "end_time": 29.73823292208553,
-      "duration": 6.479866278481288,
-      "start_frame": 372133,
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-      "overlap": false,
-      "utterance_id": "8023-286247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286247.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration": 1.2799008683619348,
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-      "utterance_id": "8023-286247",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286247.flac |",
-      "real_speaker_id": "8023",
-      "position_frames": 103677
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8023/laugh/0085.wav",
-      "duration": 1.4,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8023/laugh/0112.wav",
-      "duration": 0.8481893112749852,
-      "start_time": 30.745675717473773,
-      "speaker_id": "8023"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053816.json b/conversations/conv_053816.json
deleted file mode 100644
index 4df910fa5fda8a9331cf569d6ff14d0f8093919a..0000000000000000000000000000000000000000
--- a/conversations/conv_053816.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "432-122743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/432-122743.flac |",
-      "real_speaker_id": "432",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "3467-166570",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3467-166570.flac |",
-      "real_speaker_id": "3467",
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-      "real_speaker_id": "596",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "432",
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-    {
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-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053820.json b/conversations/conv_053820.json
deleted file mode 100644
index 1818c7d7edf7b516835abf418ee0ca402d9922a6..0000000000000000000000000000000000000000
--- a/conversations/conv_053820.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "2998-160954",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2998-160954.flac |",
-      "real_speaker_id": "2998",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "duration": 1.04,
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-      "speaker_id": "2998"
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/273/laugh/0111.wav",
-      "duration": 1.198974551637648,
-      "start_time": 16.071806392136985,
-      "speaker_id": "273"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053836.json b/conversations/conv_053836.json
deleted file mode 100644
index 2e2fd11689c1ddf87d19ce4772435a11a2ced91d..0000000000000000000000000000000000000000
--- a/conversations/conv_053836.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7565-101287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101287.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 6.034041601246363,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101287.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-109178.flac |",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101287.flac |",
-      "real_speaker_id": "7565",
-      "position_frames": 145475
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-109178.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 132925
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.34060276792309,
-      "end_time": 32.0,
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-      "utterance_id": "7565-101287",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7565-101287.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_053841.json b/conversations/conv_053841.json
deleted file mode 100644
index d8a3818b3d68d12eefc41df6313ab49d63bc3a1c..0000000000000000000000000000000000000000
--- a/conversations/conv_053841.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3781-156977.flac |",
-      "real_speaker_id": "3781",
-      "position_frames": 0
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-      "utterance_id": "3781-156981",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7640-111784.flac |",
-      "real_speaker_id": "7640",
-      "position_frames": 95591
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "1569-141082",
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-      "real_speaker_id": "1569",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "3781-156977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3781-156977.flac |",
-      "real_speaker_id": "3781",
-      "position_frames": 78907
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.04,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053846.json b/conversations/conv_053846.json
deleted file mode 100644
index cd96aaeab1c9e40d67a6faea3bf24082d212ab8a..0000000000000000000000000000000000000000
--- a/conversations/conv_053846.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7946-116281.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9023-296467.flac |",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_053850.json b/conversations/conv_053850.json
deleted file mode 100644
index 975286920cb0b0243a673be680f0c5901b04fda3..0000000000000000000000000000000000000000
--- a/conversations/conv_053850.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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\ No newline at end of file
diff --git a/conversations/conv_053857.json b/conversations/conv_053857.json
deleted file mode 100644
index af2a78278134736656a435ea8f03f30339b55162..0000000000000000000000000000000000000000
--- a/conversations/conv_053857.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_053861.json b/conversations/conv_053861.json
deleted file mode 100644
index dae00d16f1ad78eca490cc570432dbe6d19206a8..0000000000000000000000000000000000000000
--- a/conversations/conv_053861.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_053877.json b/conversations/conv_053877.json
deleted file mode 100644
index abd62d4b502a5e6f404d046e457a776f4df6812d..0000000000000000000000000000000000000000
--- a/conversations/conv_053877.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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\ No newline at end of file
diff --git a/conversations/conv_053882.json b/conversations/conv_053882.json
deleted file mode 100644
index 46adbcac128598bc72cc20b70dab56011c4de8dd..0000000000000000000000000000000000000000
--- a/conversations/conv_053882.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_053885.json b/conversations/conv_053885.json
deleted file mode 100644
index bff223f6b56a0db1c50d0b247bebe2874c57c28d..0000000000000000000000000000000000000000
--- a/conversations/conv_053885.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "1092-134562",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1092-134562.flac |",
-      "real_speaker_id": "1092",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 5.90012153958392,
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-      "real_speaker_id": "2063",
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-      "real_speaker_id": "1092",
-      "position_frames": 85448
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_053894.json b/conversations/conv_053894.json
deleted file mode 100644
index 14afb186c15fe3d374890a0ff3a40b247924cebc..0000000000000000000000000000000000000000
--- a/conversations/conv_053894.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4699-12472.flac |",
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-      "real_speaker_id": "1723",
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-    {
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-      "real_speaker_id": "7938",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
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-      "start_time": 27.951176990554462,
-      "speaker_id": "7938"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053895.json b/conversations/conv_053895.json
deleted file mode 100644
index 6803b0b360aab2603722cc53a33fc0455d4a74d8..0000000000000000000000000000000000000000
--- a/conversations/conv_053895.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-    {
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-      "real_speaker_id": "91",
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-    {
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-      "real_speaker_id": "2021",
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_053898.json b/conversations/conv_053898.json
deleted file mode 100644
index e3a877207724d39301e9ce1d455bca13c178b737..0000000000000000000000000000000000000000
--- a/conversations/conv_053898.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_053903.json b/conversations/conv_053903.json
deleted file mode 100644
index c9ced5e457308aba92755a431f6378b22ff03d2d..0000000000000000000000000000000000000000
--- a/conversations/conv_053903.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3780",
-      "position_frames": 0
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-      "real_speaker_id": "1401",
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\ No newline at end of file
diff --git a/conversations/conv_053904.json b/conversations/conv_053904.json
deleted file mode 100644
index 9af36a4f8e235d337e6860ed03f7f1c3e870fa41..0000000000000000000000000000000000000000
--- a/conversations/conv_053904.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "real_speaker_id": "6914",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1924-132574.flac |",
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-      "position_frames": 65984
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-  "foreground_events": [
-    {
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-      "event_class": "cough",
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-    {
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-      "start_time": 20.591726842848498,
-      "speaker_id": "6914"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053908.json b/conversations/conv_053908.json
deleted file mode 100644
index f0df7f99f7fc717822c957899fc2bb6b0d8d747c..0000000000000000000000000000000000000000
--- a/conversations/conv_053908.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1271-128145",
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-      "position_frames": 0
-    },
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-    {
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-      "real_speaker_id": "1271",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_053912.json b/conversations/conv_053912.json
deleted file mode 100644
index 27180eb66ca96530761f5ea1976b98f39b8c42d9..0000000000000000000000000000000000000000
--- a/conversations/conv_053912.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.617956342534384,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1564-142299",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.4171433930712904,
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-      "utterance_id": "7046-83701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-83701.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
-      "real_speaker_id": "1564",
-      "position_frames": 128778
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.217740272459253,
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-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1564-142299.flac |",
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-      "position_frames": 215747
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053915.json b/conversations/conv_053915.json
deleted file mode 100644
index 4f3033d9213dd69ce0fcc76073ab50c55f025403..0000000000000000000000000000000000000000
--- a/conversations/conv_053915.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.130868971455712,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1161-135206",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
-      "real_speaker_id": "1161",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1161-135206.flac |",
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-      "real_speaker_id": "6683",
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-    {
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-      "utterance_id": "1348-135832",
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-      "real_speaker_id": "1348",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.43727805885576,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6683-63839.flac |",
-      "real_speaker_id": "6683",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053924.json b/conversations/conv_053924.json
deleted file mode 100644
index f085c7410ab4509bcecd74548c9c9e8895c33ad6..0000000000000000000000000000000000000000
--- a/conversations/conv_053924.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6614-67846.flac |",
-      "real_speaker_id": "6614",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053928.json b/conversations/conv_053928.json
deleted file mode 100644
index 20daccb9e394988136cead6805037c5fef4b31ff..0000000000000000000000000000000000000000
--- a/conversations/conv_053928.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8388-278289",
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-    {
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-      "start_time": 19.46621299080108,
-      "speaker_id": "5781"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3143/laugh/0016.wav",
-      "duration": 1.04,
-      "start_time": 26.2400420498924,
-      "speaker_id": "3143"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053932.json b/conversations/conv_053932.json
deleted file mode 100644
index b50f233187bd3ed353f0501df4ad0f05fb6c6461..0000000000000000000000000000000000000000
--- a/conversations/conv_053932.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.975684874773406,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "8425-292520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-292520.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.6335565921434725,
-      "end_time": 11.660373561982652,
-      "duration": 5.026816969839181,
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-      "overlap": false,
-      "utterance_id": "5949-65529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65529.flac |",
-      "real_speaker_id": "5949",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.108673958758349,
-      "end_time": 16.52045356412447,
-      "duration": 4.411779605366122,
-      "start_frame": 193738,
-      "duration_frames": 70588,
-      "overlap": false,
-      "utterance_id": "6000-86686",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-86686.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.104033543817117,
-      "end_time": 21.168326907690194,
-      "duration": 4.064293363873078,
-      "start_frame": 273664,
-      "duration_frames": 65028,
-      "overlap": false,
-      "utterance_id": "5949-65529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5949-65529.flac |",
-      "real_speaker_id": "5949",
-      "position_frames": 80429
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.37718927824669,
-      "end_time": 27.881161807190146,
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-      "duration_frames": 88063,
-      "overlap": false,
-      "utterance_id": "8425-291444",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8425-291444.flac |",
-      "real_speaker_id": "8425",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.395269776089073,
-      "end_time": 32.0,
-      "duration": 3.604730223910927,
-      "start_frame": 454324,
-      "duration_frames": 57675,
-      "overlap": false,
-      "utterance_id": "6000-55211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6000-55211.flac |",
-      "real_speaker_id": "6000",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
-      "duration": 0.4329251700680272,
-      "start_time": 1.4479353572858327
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/379144_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8425/laugh/0106.wav",
-      "duration": 1.12,
-      "start_time": 26.556415839256843,
-      "speaker_id": "8425"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053942.json b/conversations/conv_053942.json
deleted file mode 100644
index faa0772ef3faf11228401e4963ddf37f65218ad2..0000000000000000000000000000000000000000
--- a/conversations/conv_053942.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.405169792296885,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.797553591602261,
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-      "overlap": false,
-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.0860741878356635,
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-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-286289.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 0
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-      "overlap": false,
-      "utterance_id": "3288-7156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3288-7156.flac |",
-      "real_speaker_id": "3288",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8250-286289.flac |",
-      "real_speaker_id": "8250",
-      "position_frames": 81292
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.903354256564512,
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-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 92760
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3288-7157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3288-7157.flac |",
-      "real_speaker_id": "3288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.25256976734353,
-      "end_time": 31.405169792296885,
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-      "overlap": true,
-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 161987
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-  ],
-  "background_events": [
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "start_time": 15.3446928323231,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/576/laugh/0034.wav",
-      "duration": 0.8169959201714732,
-      "start_time": 24.190080707527937,
-      "speaker_id": "576"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053945.json b/conversations/conv_053945.json
deleted file mode 100644
index 948e9069df879359bf30af5af1f6481af87055f6..0000000000000000000000000000000000000000
--- a/conversations/conv_053945.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.262801138144617,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "3143-160986",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3143-160986.flac |",
-      "real_speaker_id": "3143",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "1926-143879",
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-      "segment_id": "seg0002",
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-      "utterance_id": "3143-160993",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3143-160993.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "1926-147987",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1926-147987.flac |",
-      "real_speaker_id": "1926",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-84349.flac |",
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-    {
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 28.477456667136906,
-      "speaker_id": "6395"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053949.json b/conversations/conv_053949.json
deleted file mode 100644
index 9ede1d5c988de5483101d7b5ae84c32be1f7ecea..0000000000000000000000000000000000000000
--- a/conversations/conv_053949.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "2909-81524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-81524.flac |",
-      "real_speaker_id": "2909",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3063-138652.flac |",
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-      "utterance_id": "5405-121045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5405-121045.flac |",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_053953.json b/conversations/conv_053953.json
deleted file mode 100644
index 3ac87a23e7832a8c929ac1a0326106e170f6067d..0000000000000000000000000000000000000000
--- a/conversations/conv_053953.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.450909764222372,
-      "duration": 4.450909764222372,
-      "start_frame": 0,
-      "duration_frames": 71214,
-      "overlap": false,
-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.685077416295252,
-      "end_time": 9.070564249091648,
-      "duration": 4.385486832796396,
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-      "duration_frames": 70167,
-      "overlap": true,
-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 71214
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.380370498240227,
-      "end_time": 13.87245580159367,
-      "duration": 3.4920853033534422,
-      "start_frame": 166085,
-      "duration_frames": 55873,
-      "overlap": false,
-      "utterance_id": "7117-86732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7117-86732.flac |",
-      "real_speaker_id": "7117",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.440948952529602,
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-      "duration": 5.185352313817778,
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-      "overlap": true,
-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 141381
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.54259200187079,
-      "end_time": 25.733640273745568,
-      "duration": 5.191048271874778,
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-      "duration_frames": 83056,
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-      "utterance_id": "1365-134804",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134804.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.41459946731173,
-      "end_time": 30.57528762918168,
-      "duration": 4.16068816186995,
-      "start_frame": 422633,
-      "duration_frames": 66571,
-      "overlap": false,
-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 224346
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.23421444173669,
-      "end_time": 32.0,
-      "duration": 0.7657855582633104,
-      "start_frame": 499747,
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-      "overlap": false,
-      "utterance_id": "1365-134830",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1365-134830.flac |",
-      "real_speaker_id": "1365",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 12.313535728654196,
-      "start_time": 17.11730397445231
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_1.wav",
-      "duration": 3.0481083210152193,
-      "start_time": 26.39189793497833
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7117/laugh/0100.wav",
-      "duration": 1.1492000338521682,
-      "start_time": 9.153959405271046,
-      "speaker_id": "7117"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1365/laugh/0033.wav",
-      "duration": 0.9174414619717975,
-      "start_time": 30.22368577775912,
-      "speaker_id": "1365"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053954.json b/conversations/conv_053954.json
deleted file mode 100644
index e7bea39a3eda75c6259c4947a9fbfeac251b6c7b..0000000000000000000000000000000000000000
--- a/conversations/conv_053954.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 8,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6281-65531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.731505520489742,
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-      "overlap": false,
-      "utterance_id": "4712-49746",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4712-49746.flac |",
-      "real_speaker_id": "4712",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.97455469421794,
-      "end_time": 14.249221745915554,
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-      "utterance_id": "6281-1315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.571884384993371,
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-      "utterance_id": "6281-1315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 68394
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.529105957685395,
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-      "duration_frames": 55871,
-      "overlap": false,
-      "utterance_id": "6281-65531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 69897
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 49924,
-      "overlap": false,
-      "utterance_id": "6865-95959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95959.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 26.882107392781737,
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-      "duration": 3.382813594138952,
-      "start_frame": 430113,
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-      "utterance_id": "6281-1315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 136359
-    },
-    {
-      "segment_id": "seg0007",
-      "speaker_id": 0,
-      "start_time": 30.503280821683667,
-      "end_time": 32.0,
-      "duration": 1.496719178316333,
-      "start_frame": 488052,
-      "duration_frames": 23947,
-      "overlap": false,
-      "utterance_id": "6865-95959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6865-95959.flac |",
-      "real_speaker_id": "6865",
-      "position_frames": 49924
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371918.wav",
-      "duration": 3.0363098524304695,
-      "start_time": 20.05285257083053
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6281/laugh/0082.wav",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6865/laugh/0117.wav",
-      "duration": 0.84,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6865/laugh/0065.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 30.88,
-      "speaker_id": "6865"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053965.json b/conversations/conv_053965.json
deleted file mode 100644
index 0cde081be976d9722a7c98cb22b7fb9218a1ce6e..0000000000000000000000000000000000000000
--- a/conversations/conv_053965.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5791-31920",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31920.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "real_speaker_id": "7514",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31920.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 70166
-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7514",
-      "position_frames": 66336
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "duration": 4.980032825608365,
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-      "overlap": false,
-      "utterance_id": "5791-31921",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5791-31921.flac |",
-      "real_speaker_id": "5791",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7514-96429",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7514-96429.flac |",
-      "real_speaker_id": "7514",
-      "position_frames": 136619
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/428863.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_053968.json b/conversations/conv_053968.json
deleted file mode 100644
index 46394a6e8b56f8235988e79917d3172384f2b920..0000000000000000000000000000000000000000
--- a/conversations/conv_053968.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3221-138045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3221-138045.flac |",
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-    {
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-      "segment_id": "seg0004",
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-  "paralinguistic_events": [
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-      "speaker_id": "1097"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_053969.json b/conversations/conv_053969.json
deleted file mode 100644
index b48480ed1c86f2e42da45cbf4b384ba631bb2886..0000000000000000000000000000000000000000
--- a/conversations/conv_053969.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-22437.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
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-      "real_speaker_id": "724",
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-      "real_speaker_id": "4770",
-      "position_frames": 0
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-    {
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-      "speaker_id": 1,
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-      "utterance_id": "724-123285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/724-123285.flac |",
-      "real_speaker_id": "724",
-      "position_frames": 103622
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 28.83234288898703,
-      "end_time": 32.0,
-      "duration": 3.1676571110129714,
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-      "duration_frames": 50682,
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-      "utterance_id": "413-12292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/413-12292.flac |",
-      "real_speaker_id": "413",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "start_time": 7.044985933153777,
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-    {
-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_053973.json b/conversations/conv_053973.json
deleted file mode 100644
index a1b1eedaebacc1eecfc95351e9f8632cd5105421..0000000000000000000000000000000000000000
--- a/conversations/conv_053973.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "7540-101262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101262.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53048.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
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-      "position_frames": 0
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-      "utterance_id": "5910-53048",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53048.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 64062
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.29073360434004,
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-      "utterance_id": "7540-101799",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101799.flac |",
-      "real_speaker_id": "7540",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.111055636362607,
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-      "duration_frames": 55051,
-      "overlap": true,
-      "utterance_id": "5910-53143",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5910-53143.flac |",
-      "real_speaker_id": "5910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.365410221997955,
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_053986.json b/conversations/conv_053986.json
deleted file mode 100644
index 51f8c8da76230b667a4f0f7ddc28d356fabac4b2..0000000000000000000000000000000000000000
--- a/conversations/conv_053986.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1901-147822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-147822.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-      "real_speaker_id": "2404",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1239-138254.flac |",
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-      "real_speaker_id": "2404",
-      "position_frames": 91957
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1239-138254.flac |",
-      "real_speaker_id": "1239",
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2404/laugh/0006.wav",
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-      "speaker_id": "2404"
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-}
\ No newline at end of file
diff --git a/conversations/conv_053990.json b/conversations/conv_053990.json
deleted file mode 100644
index 19d88a8c7b5b40daf5430b05ab0559927eb5d86d..0000000000000000000000000000000000000000
--- a/conversations/conv_053990.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2012-139358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139358.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139358.flac |",
-      "real_speaker_id": "2012",
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-      "utterance_id": "2012-139356",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139356.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.166739892167243,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2012-139355.flac |",
-      "real_speaker_id": "2012",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "start_time": 0,
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-      "event_class": "laugh",
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-      "duration": 1.36,
-      "start_time": 5.494659603458363,
-      "speaker_id": "1290"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1290/laugh/0093.wav",
-      "duration": 1.7973930076468774,
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-      "event_class": "cough",
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-      "speaker_id": "2012"
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-}
\ No newline at end of file
diff --git a/conversations/conv_054003.json b/conversations/conv_054003.json
deleted file mode 100644
index b69cabfa78d26694e664ee6d5cb9ef933bf01465..0000000000000000000000000000000000000000
--- a/conversations/conv_054003.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "128-121911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-121911.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.90480286048884,
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-      "utterance_id": "1200-135043",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135043.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.85040951423868,
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-      "overlap": false,
-      "utterance_id": "1200-135068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135068.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 20.181848473095116,
-      "end_time": 24.096388077658254,
-      "duration": 3.9145396045631395,
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-      "overlap": false,
-      "utterance_id": "128-134883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.774147319480655,
-      "end_time": 28.626630586188803,
-      "duration": 3.85248326670815,
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-      "utterance_id": "1200-135068",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1200-135068.flac |",
-      "real_speaker_id": "1200",
-      "position_frames": 106909
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.875921470395188,
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-      "duration": 3.1240785296048124,
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-      "utterance_id": "128-134883",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 62632
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/128/laugh/0123.wav",
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-      "start_time": 27.40725669649003,
-      "speaker_id": "128"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054004.json b/conversations/conv_054004.json
deleted file mode 100644
index ac4b613f18e239d9c18d9472dc72e434d6e6d537..0000000000000000000000000000000000000000
--- a/conversations/conv_054004.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "1806-143946",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143946.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5665-38051.flac |",
-      "real_speaker_id": "5665",
-      "position_frames": 0
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-    {
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-      "utterance_id": "4225-144132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.055631899645945,
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-      "overlap": false,
-      "utterance_id": "1806-143948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1806-143948.flac |",
-      "real_speaker_id": "1806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.51077509409963,
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-      "duration": 3.8559143509528924,
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-      "utterance_id": "5665-38051",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5665-38051.flac |",
-      "real_speaker_id": "5665",
-      "position_frames": 93935
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "4225-144132",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4225-144132.flac |",
-      "real_speaker_id": "4225",
-      "position_frames": 64585
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_054012.json b/conversations/conv_054012.json
deleted file mode 100644
index 492e96b2510a0a35cb34e33e53b7dbd3a858e043..0000000000000000000000000000000000000000
--- a/conversations/conv_054012.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "utterance_id": "8441-284014",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-284014.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1593-91064.flac |",
-      "real_speaker_id": "1593",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8441-281327",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.514811527866435,
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-      "utterance_id": "1789-137618",
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-      "real_speaker_id": "1789",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1593-175346.flac |",
-      "real_speaker_id": "1593",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-281327.flac |",
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-      "position_frames": 94793
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-      "event_class": "Running_water",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054015.json b/conversations/conv_054015.json
deleted file mode 100644
index 404e44ac29049f045ed2b1a41c77d4326897d29e..0000000000000000000000000000000000000000
--- a/conversations/conv_054015.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.53117205946228,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "3630-11612",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-11612.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.441428186026089,
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-      "utterance_id": "1261-136350",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-136350.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3630-24758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-24758.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 49409
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-136350.flac |",
-      "real_speaker_id": "1261",
-      "position_frames": 79871
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "3630-24758",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3630-24758.flac |",
-      "real_speaker_id": "3630",
-      "position_frames": 127879
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371914_1.wav",
-      "duration": 0.7759410430839002,
-      "start_time": 9.463236908369106
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-      "event_class": "Running_water",
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-      "event_class": "laugh",
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-      "duration": 1.6,
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3630/cough/0006.wav",
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-      "event_class": "laugh",
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-      "duration": 0.7250707593124681,
-      "start_time": 26.644390734994857,
-      "speaker_id": "1261"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054019.json b/conversations/conv_054019.json
deleted file mode 100644
index c73513db7b43d4bbff94da16ae08a7729a095a65..0000000000000000000000000000000000000000
--- a/conversations/conv_054019.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.440602918786382,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1752-16632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.4108066140707045,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1752-16632.flac |",
-      "real_speaker_id": "1752",
-      "position_frames": 63299
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-      "real_speaker_id": "5463",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1460-138290.flac |",
-      "real_speaker_id": "1460",
-      "position_frames": 79509
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-      "segment_id": "seg0006",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39174.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054023.json b/conversations/conv_054023.json
deleted file mode 100644
index 3a04042b577bd98e8cd6a70d1e4d227aebc0dfb5..0000000000000000000000000000000000000000
--- a/conversations/conv_054023.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "4196-23955",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23955.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-80695.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23955.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 106118
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6798-77737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77737.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.641278743975754,
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-      "overlap": false,
-      "utterance_id": "4196-23901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4196-23901.flac |",
-      "real_speaker_id": "4196",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.734093187960667,
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-      "duration": 3.265906812039333,
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-      "overlap": false,
-      "utterance_id": "6798-77737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77737.flac |",
-      "real_speaker_id": "6798",
-      "position_frames": 86621
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4196/cough/0092.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6798/laugh/0117.wav",
-      "duration": 1.4,
-      "start_time": 16.061657207223146,
-      "speaker_id": "6798"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054035.json b/conversations/conv_054035.json
deleted file mode 100644
index c79697f6d705bad07d304b69ef722fbd84e7b953..0000000000000000000000000000000000000000
--- a/conversations/conv_054035.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "707-138866",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-138866.flac |",
-      "real_speaker_id": "707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.295673591321059,
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-      "start_frame": 100730,
-      "duration_frames": 61190,
-      "overlap": false,
-      "utterance_id": "1987-144135",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-138866.flac |",
-      "real_speaker_id": "707",
-      "position_frames": 82294
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "2364-131735",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2364-131735.flac |",
-      "real_speaker_id": "2364",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "707-161166",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/707-161166.flac |",
-      "real_speaker_id": "707",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "2364-131735",
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-      "real_speaker_id": "2364",
-      "position_frames": 57431
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1987-144135.flac |",
-      "real_speaker_id": "1987",
-      "position_frames": 61190
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_7.wav",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/707/cough/0041.wav",
-      "duration": 0.8108034076323742,
-      "start_time": 10.076322155183586,
-      "speaker_id": "707"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2364/laugh/0015.wav",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054038.json b/conversations/conv_054038.json
deleted file mode 100644
index c96134648145779a432333bede552eeacbdfda0a..0000000000000000000000000000000000000000
--- a/conversations/conv_054038.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.846170339960387,
-      "duration": 4.846170339960387,
-      "start_frame": 0,
-      "duration_frames": 77538,
-      "overlap": false,
-      "utterance_id": "8063-274116",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274116.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.406397210337143,
-      "end_time": 10.63067601450631,
-      "duration": 5.224278804169167,
-      "start_frame": 86502,
-      "duration_frames": 83588,
-      "overlap": false,
-      "utterance_id": "766-127195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127195.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.983001969307724,
-      "end_time": 15.418592699197156,
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-      "overlap": true,
-      "utterance_id": "8063-274112",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274112.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.74778884518269,
-      "end_time": 21.86944455091377,
-      "duration": 5.121655705731081,
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-      "duration_frames": 81946,
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-      "utterance_id": "8063-274117",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274117.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.59463436576382,
-      "end_time": 28.972230379285,
-      "duration": 5.377596013521183,
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-      "overlap": false,
-      "utterance_id": "766-127195",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/766-127195.flac |",
-      "real_speaker_id": "766",
-      "position_frames": 83588
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.169244591140025,
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-      "utterance_id": "8063-274117",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8063-274117.flac |",
-      "real_speaker_id": "8063",
-      "position_frames": 81946
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/766/laugh/0093.wav",
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-      "duration": 0.31365143947200547,
-      "start_time": 23.16320648305015,
-      "speaker_id": "766"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054039.json b/conversations/conv_054039.json
deleted file mode 100644
index c04af6a77d24f270aeed66b171c4afaa11ce174b..0000000000000000000000000000000000000000
--- a/conversations/conv_054039.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6943-85172",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85172.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-85168.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
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-      "real_speaker_id": "2552",
-      "position_frames": 80772
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6943-64094",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6943-64094.flac |",
-      "real_speaker_id": "6943",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "2552-132097",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2552-132097.flac |",
-      "real_speaker_id": "2552",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054042.json b/conversations/conv_054042.json
deleted file mode 100644
index 7f3113df8d77dba01416982ba7ecc1d6fae22aa4..0000000000000000000000000000000000000000
--- a/conversations/conv_054042.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "6080-58025",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6080-58025.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_054045.json b/conversations/conv_054045.json
deleted file mode 100644
index 1a919c1b9b55a52e71abf78fcbe25d17f84cfcb5..0000000000000000000000000000000000000000
--- a/conversations/conv_054045.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "667-158816",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-158816.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054053.json b/conversations/conv_054053.json
deleted file mode 100644
index 560b664a601715a5433d9495535cb5f088d7f318..0000000000000000000000000000000000000000
--- a/conversations/conv_054053.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.778243540922706,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.680143203303606,
-      "duration": 5.680143203303606,
-      "start_frame": 0,
-      "duration_frames": 90882,
-      "overlap": false,
-      "utterance_id": "6670-112764",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-112764.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.76909387004509,
-      "end_time": 10.293749957554859,
-      "duration": 3.5246560875097677,
-      "start_frame": 108305,
-      "duration_frames": 56394,
-      "overlap": false,
-      "utterance_id": "3261-154309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 11.335341739995656,
-      "end_time": 15.78167821735196,
-      "duration": 4.446336477356305,
-      "start_frame": 181365,
-      "duration_frames": 71141,
-      "overlap": false,
-      "utterance_id": "1595-138031",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-138031.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.223575275750605,
-      "end_time": 20.6262970032569,
-      "duration": 3.4027217275062958,
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-      "duration_frames": 54443,
-      "overlap": false,
-      "utterance_id": "6670-296083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-296083.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.46169237409123,
-      "end_time": 26.34202066327317,
-      "duration": 4.880328289181944,
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-      "duration_frames": 78085,
-      "overlap": false,
-      "utterance_id": "3261-154309",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3261-154309.flac |",
-      "real_speaker_id": "3261",
-      "position_frames": 56394
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.643552411184324,
-      "end_time": 30.07650447097469,
-      "duration": 3.4329520597903653,
-      "start_frame": 426296,
-      "duration_frames": 54927,
-      "overlap": false,
-      "utterance_id": "1595-132753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-132753.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.103573150341067,
-      "end_time": 31.778243540922706,
-      "duration": 1.674670390581639,
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-      "duration_frames": 26794,
-      "overlap": true,
-      "utterance_id": "6670-84209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6670-84209.flac |",
-      "real_speaker_id": "6670",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_12.wav",
-      "duration": 0.23598639455782314,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6670/cough/0025.wav",
-      "duration": 0.6755508591183288,
-      "start_time": 3.9494787783844902,
-      "speaker_id": "6670"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1595/cough/0106.wav",
-      "duration": 0.7229237245124513,
-      "start_time": 14.805807898874203,
-      "speaker_id": "1595"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6670/cough/0093.wav",
-      "duration": 1.041553344073356,
-      "start_time": 20.82533720163109,
-      "speaker_id": "6670"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3261/laugh/0015.wav",
-      "duration": 0.6650578548254549,
-      "start_time": 26.57939377796758,
-      "speaker_id": "3261"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054054.json b/conversations/conv_054054.json
deleted file mode 100644
index db9220378abfb0c982fdbb620e2fa1aaa23196a6..0000000000000000000000000000000000000000
--- a/conversations/conv_054054.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.42150580315037,
-      "duration": 4.42150580315037,
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-      "overlap": false,
-      "utterance_id": "7199-84006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84006.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.7003549141316325,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2979-156237.flac |",
-      "real_speaker_id": "2979",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 10.516138426434154,
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-      "overlap": false,
-      "utterance_id": "7199-84007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84007.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.43818721966231,
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-      "overlap": false,
-      "utterance_id": "1363-135842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1363-135842.flac |",
-      "real_speaker_id": "1363",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.865690803764416,
-      "end_time": 26.508302697302696,
-      "duration": 5.642611893538281,
-      "start_frame": 333851,
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-      "overlap": false,
-      "utterance_id": "7199-84007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84007.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 84169
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.372214067966194,
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-      "overlap": false,
-      "utterance_id": "7199-84007",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7199-84007.flac |",
-      "real_speaker_id": "7199",
-      "position_frames": 174450
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7199/laugh/0116.wav",
-      "duration": 0.6143546641370132,
-      "start_time": 20.20181203403323,
-      "speaker_id": "7199"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054058.json b/conversations/conv_054058.json
deleted file mode 100644
index facddfb863bc37a109c7cadbd20bc16d06eb97de..0000000000000000000000000000000000000000
--- a/conversations/conv_054058.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "5181-2488",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2488.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.791871289203403,
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-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5181-2488.flac |",
-      "real_speaker_id": "5181",
-      "position_frames": 80885
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "6978-92211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-92211.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.764352514092295,
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-      "duration_frames": 60794,
-      "overlap": true,
-      "utterance_id": "1878-122453",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122453.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.082366257235215,
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-      "utterance_id": "6978-92210",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6978-92210.flac |",
-      "real_speaker_id": "6978",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
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-    {
-      "event_class": "Dishes",
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-      "start_time": 27.49564365012579
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_054062.json b/conversations/conv_054062.json
deleted file mode 100644
index e08b9149fbbb4565db8bffe70d273a184f97bc19..0000000000000000000000000000000000000000
--- a/conversations/conv_054062.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "246-122825",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-122825.flac |",
-      "real_speaker_id": "246",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.6918633277853745,
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-      "utterance_id": "476-133471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/476-133471.flac |",
-      "real_speaker_id": "476",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.94167629533704,
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-      "duration_frames": 81862,
-      "overlap": false,
-      "utterance_id": "246-224",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/246-224.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-    {
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-    {
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-      "speaker_id": "246"
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-}
\ No newline at end of file
diff --git a/conversations/conv_054063.json b/conversations/conv_054063.json
deleted file mode 100644
index 718d40fe7bc2d1b1a9f01de42e16916d41ab192d..0000000000000000000000000000000000000000
--- a/conversations/conv_054063.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 79059
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-      "speaker_id": 2,
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-      "real_speaker_id": "8242",
-      "position_frames": 87652
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "7424-98623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7424-98623.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Running_water",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_054074.json b/conversations/conv_054074.json
deleted file mode 100644
index 3cb573a8676af0cc34dfca062bf34c8929286397..0000000000000000000000000000000000000000
--- a/conversations/conv_054074.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1545-160887.flac |",
-      "real_speaker_id": "1545",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "3615",
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-      "position_frames": 171446
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_054078.json b/conversations/conv_054078.json
deleted file mode 100644
index 8685df15cb076c874fe37a13bc01102df641ff68..0000000000000000000000000000000000000000
--- a/conversations/conv_054078.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.301159540843305,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6914-284528.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7481-101276.flac |",
-      "real_speaker_id": "7481",
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-      "real_speaker_id": "3845",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7481",
-      "position_frames": 91481
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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\ No newline at end of file
diff --git a/conversations/conv_054080.json b/conversations/conv_054080.json
deleted file mode 100644
index c6f10e57ad71ef1afc3a242180e220edd145e8ef..0000000000000000000000000000000000000000
--- a/conversations/conv_054080.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164335.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8023-286250.flac |",
-      "real_speaker_id": "8023",
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\ No newline at end of file
diff --git a/conversations/conv_054081.json b/conversations/conv_054081.json
deleted file mode 100644
index f52a30b8ea0ffc730f097499187538d5ee99db59..0000000000000000000000000000000000000000
--- a/conversations/conv_054081.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.804429938018874,
-      "duration": 4.804429938018874,
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-      "overlap": false,
-      "utterance_id": "2050-164335",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164335.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.2364028449727025,
-      "end_time": 9.641636713002317,
-      "duration": 4.405233868029615,
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-      "overlap": false,
-      "utterance_id": "7218-86688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7218-86688.flac |",
-      "real_speaker_id": "7218",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7188-104637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-104637.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.312063027438473,
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-      "duration_frames": 48701,
-      "overlap": false,
-      "utterance_id": "2050-164335",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-164335.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 76870
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 17.64766071829085,
-      "end_time": 22.62383645767264,
-      "duration": 4.9761757393817865,
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-      "duration_frames": 79618,
-      "overlap": false,
-      "utterance_id": "7188-107627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 23.17906877020361,
-      "end_time": 27.631393786777103,
-      "duration": 4.452325016573495,
-      "start_frame": 370865,
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-      "overlap": false,
-      "utterance_id": "7188-107627",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7188-107627.flac |",
-      "real_speaker_id": "7188",
-      "position_frames": 79618
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.021555060414133,
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-      "duration": 3.9784449395858665,
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-      "utterance_id": "2050-157659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2050-157659.flac |",
-      "real_speaker_id": "2050",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 11.241670677977691,
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7218/cough/0089.wav",
-      "duration": 1.3494674360596286,
-      "start_time": 3.7850003564946375,
-      "speaker_id": "7218"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054097.json b/conversations/conv_054097.json
deleted file mode 100644
index 0bccf5b076516834f41660a127b0c03d3beb6828..0000000000000000000000000000000000000000
--- a/conversations/conv_054097.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.039587904924228,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6947-53262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53262.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.198808093063983,
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-      "utterance_id": "6947-53264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53264.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
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-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 0
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-      "utterance_id": "441-128982",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128982.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 18.292272767514927,
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-      "utterance_id": "2401-144485",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
-      "real_speaker_id": "2401",
-      "position_frames": 50352
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.71676500627297,
-      "end_time": 29.27480052429265,
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-      "utterance_id": "6947-53261",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6947-53261.flac |",
-      "real_speaker_id": "6947",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.58437904499724,
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-      "utterance_id": "441-130108",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-130108.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
-    {
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-      "duration": 1.4,
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-      "speaker_id": "441"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054100.json b/conversations/conv_054100.json
deleted file mode 100644
index 2bac6431aa1a59a8938d9ccec13ab2cdd3172db7..0000000000000000000000000000000000000000
--- a/conversations/conv_054100.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "4381-14904",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14904.flac |",
-      "real_speaker_id": "4381",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261140.flac |",
-      "real_speaker_id": "8629",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14904.flac |",
-      "real_speaker_id": "4381",
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-    {
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-      "real_speaker_id": "8629",
-      "position_frames": 104705
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-    {
-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4381-14904.flac |",
-      "real_speaker_id": "4381",
-      "position_frames": 181484
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "8629-261139",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261139.flac |",
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-  ],
-  "background_events": [
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-    {
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-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054107.json b/conversations/conv_054107.json
deleted file mode 100644
index 75e62665b812bea93378aea80cbeeb18e1ec1a93..0000000000000000000000000000000000000000
--- a/conversations/conv_054107.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.102172110921751,
-      "duration": 6.102172110921751,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1505-1303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1303.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.560967318587005,
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-      "segment_id": "seg0002",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1505/cough/0004.wav",
-      "duration": 0.4494671867289003,
-      "start_time": 4.190592797755375,
-      "speaker_id": "1505"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054111.json b/conversations/conv_054111.json
deleted file mode 100644
index 55ac634d71c6e84bab1694eef261309490dc6160..0000000000000000000000000000000000000000
--- a/conversations/conv_054111.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.41604999684213,
-  "num_speakers": 2,
-  "overlap_rate": 0.42857142857142855,
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.3508229558395746,
-      "duration": 3.3508229558395746,
-      "start_frame": 0,
-      "duration_frames": 53613,
-      "overlap": false,
-      "utterance_id": "4310-14908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.890941598531868,
-      "end_time": 8.583016506879845,
-      "duration": 4.692074908347977,
-      "start_frame": 62255,
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-      "overlap": false,
-      "utterance_id": "7155-10644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-10644.flac |",
-      "real_speaker_id": "7155",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.937307078291206,
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-      "duration": 3.364904087036228,
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-      "duration_frames": 53838,
-      "overlap": true,
-      "utterance_id": "4310-14908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 53613
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.919051435963615,
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-      "duration": 6.562102912395972,
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-      "utterance_id": "7155-249840",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-249840.flac |",
-      "real_speaker_id": "7155",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.89649806414466,
-      "end_time": 24.168595514062222,
-      "duration": 4.272097449917562,
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-      "duration_frames": 68353,
-      "overlap": false,
-      "utterance_id": "4310-14908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14908.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 107451
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 23.965057715101704,
-      "end_time": 26.966035105510016,
-      "duration": 3.0009773904083126,
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-      "duration_frames": 48015,
-      "overlap": true,
-      "utterance_id": "7155-10644",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7155-10644.flac |",
-      "real_speaker_id": "7155",
-      "position_frames": 75073
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 27.992167619548265,
-      "end_time": 31.41604999684213,
-      "duration": 3.4238823772938645,
-      "start_frame": 447874,
-      "duration_frames": 54782,
-      "overlap": true,
-      "utterance_id": "4310-14900",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4310-14900.flac |",
-      "real_speaker_id": "4310",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4310/laugh/0041.wav",
-      "duration": 1.44,
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-      "speaker_id": "4310"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7155/laugh/0074.wav",
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-      "start_time": 14.865217933349289,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4310/laugh/0005.wav",
-      "duration": 0.8560996254938217,
-      "start_time": 23.050937701710097,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4310/laugh/0022.wav",
-      "duration": 0.9077689404733195,
-      "start_time": 26.911398448931557,
-      "speaker_id": "4310"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054116.json b/conversations/conv_054116.json
deleted file mode 100644
index b3eaf0dc0b5a343ed82b8e815b958770da3e863b..0000000000000000000000000000000000000000
--- a/conversations/conv_054116.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 95850
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.569413410185716,
-      "end_time": 21.355440018754166,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 71126
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.205718155550763,
-      "end_time": 26.657620785273252,
-      "duration": 4.451902629722491,
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-      "overlap": false,
-      "utterance_id": "1624-168623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1624-168623.flac |",
-      "real_speaker_id": "1624",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.46278725033173,
-      "end_time": 31.12954060354925,
-      "duration": 3.666753353217519,
-      "start_frame": 439404,
-      "duration_frames": 58668,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 146985
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.2918943188284,
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-      "duration": 0.7081056811715989,
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-      "utterance_id": "835-130876",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/835-130876.flac |",
-      "real_speaker_id": "835",
-      "position_frames": 163702
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/81573.wav",
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-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2735/cough/0055.wav",
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-      "start_time": 26.13956175491224,
-      "speaker_id": "2735"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054127.json b/conversations/conv_054127.json
deleted file mode 100644
index c5fd44aa417d13ee426288ccf87dedb91055fe16..0000000000000000000000000000000000000000
--- a/conversations/conv_054127.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.08477070241169,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "208-128036",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-128036.flac |",
-      "real_speaker_id": "208",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-61421.flac |",
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-      "utterance_id": "4807-26852",
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-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "5717",
-      "position_frames": 101968
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "208-126851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126851.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.242167157844648,
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-      "utterance_id": "5717-61421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5717-61421.flac |",
-      "real_speaker_id": "5717",
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-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_054131.json b/conversations/conv_054131.json
deleted file mode 100644
index 790b1fc4711d3f956418a165293d208603b6b0c1..0000000000000000000000000000000000000000
--- a/conversations/conv_054131.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.264157695903293,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7874-110243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7874-110243.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "644",
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-      "segment_id": "seg0002",
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-      "utterance_id": "3554-163609",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/644-162690.flac |",
-      "real_speaker_id": "644",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
-      "duration": 0.2502721088435374,
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7874/laugh/0051.wav",
-      "duration": 0.96,
-      "start_time": 5.7614359381866755,
-      "speaker_id": "7874"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/644/laugh/0097.wav",
-      "duration": 1.28,
-      "start_time": 13.412386367687356,
-      "speaker_id": "644"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7874/laugh/0038.wav",
-      "duration": 1.0809087270378144,
-      "start_time": 19.361767602635915,
-      "speaker_id": "7874"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054141.json b/conversations/conv_054141.json
deleted file mode 100644
index 1c8402b83ce8d86fea0e7c1567d8a00eed17aa9b..0000000000000000000000000000000000000000
--- a/conversations/conv_054141.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.331207333113703,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.0317199057746445,
-      "duration": 4.0317199057746445,
-      "start_frame": 0,
-      "duration_frames": 64507,
-      "overlap": false,
-      "utterance_id": "7258-91902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91902.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.6338136584256455,
-      "end_time": 10.840543930776452,
-      "duration": 6.206730272350805,
-      "start_frame": 74141,
-      "duration_frames": 99307,
-      "overlap": false,
-      "utterance_id": "7376-64577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-64577.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.067492198817618,
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-      "duration_frames": 82203,
-      "overlap": false,
-      "utterance_id": "52-121057",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/52-121057.flac |",
-      "real_speaker_id": "52",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.512567622297492,
-      "end_time": 21.7672890236477,
-      "duration": 5.254721401350207,
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-      "utterance_id": "7376-96150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.98978732770303,
-      "end_time": 28.24734565618088,
-      "duration": 6.257558328477848,
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-      "duration_frames": 100120,
-      "overlap": false,
-      "utterance_id": "7376-64577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-64577.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 99307
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.09354848763786,
-      "end_time": 31.331207333113703,
-      "duration": 3.237658845475842,
-      "start_frame": 449496,
-      "duration_frames": 51802,
-      "overlap": true,
-      "utterance_id": "7258-91902",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7258-91902.flac |",
-      "real_speaker_id": "7258",
-      "position_frames": 64507
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/353124.wav",
-      "duration": 13.99880350285753,
-      "start_time": 12.984478386606774
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340830.wav",
-      "duration": 3.1876240350637546,
-      "start_time": 18.56711453885854
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7376/laugh/0097.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/52/laugh/0041.wav",
-      "duration": 1.1004581362494066,
-      "start_time": 16.465590420469184,
-      "speaker_id": "52"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/52/cough/0037.wav",
-      "duration": 0.42757867644665803,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7258/cough/0062.wav",
-      "duration": 1.2,
-      "start_time": 26.86349246385322,
-      "speaker_id": "7258"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054146.json b/conversations/conv_054146.json
deleted file mode 100644
index 1073cd0b7316f6b1c17d23d0b9f6320ad06e3d5c..0000000000000000000000000000000000000000
--- a/conversations/conv_054146.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1603-141713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-141713.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.275769289180866,
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-      "utterance_id": "6913-80509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "6913-80509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 54865
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "utterance_id": "66-354",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/66-354.flac |",
-      "real_speaker_id": "66",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.063816588035213,
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-      "overlap": false,
-      "utterance_id": "6913-80509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 114190
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.13616715653481,
-      "end_time": 29.596680095804704,
-      "duration": 3.460512939269894,
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-      "duration_frames": 55368,
-      "overlap": false,
-      "utterance_id": "6913-80509",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6913-80509.flac |",
-      "real_speaker_id": "6913",
-      "position_frames": 196772
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.872135587701248,
-      "end_time": 32.0,
-      "duration": 2.1278644122987522,
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-      "utterance_id": "1603-139324",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1603-139324.flac |",
-      "real_speaker_id": "1603",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "1603"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/66/laugh/0029.wav",
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-    {
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-      "speaker_id": "6913"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054150.json b/conversations/conv_054150.json
deleted file mode 100644
index b98e2fb3a1631fc73f3b08e565d5377018059264..0000000000000000000000000000000000000000
--- a/conversations/conv_054150.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "8392-285237",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8392-285237.flac |",
-      "real_speaker_id": "8392",
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4703",
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-      "segment_id": "seg0002",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "position_frames": 66287
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "7376",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.711833795800967,
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-      "position_frames": 135575
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
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-      "start_time": 29.45510575463181,
-      "speaker_id": "4703"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054157.json b/conversations/conv_054157.json
deleted file mode 100644
index 1ab4c60ca8e68ce3152e32bb9dbae8c536aac459..0000000000000000000000000000000000000000
--- a/conversations/conv_054157.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "8887-281472",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8887-281472.flac |",
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-      "position_frames": 0
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-    {
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-      "real_speaker_id": "1260",
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\ No newline at end of file
diff --git a/conversations/conv_054166.json b/conversations/conv_054166.json
deleted file mode 100644
index 2c103473e19e579267fcd739627440af9b2bf490..0000000000000000000000000000000000000000
--- a/conversations/conv_054166.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
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-  "num_speakers": 3,
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-      "utterance_id": "3681-96617",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-96617.flac |",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_054170.json b/conversations/conv_054170.json
deleted file mode 100644
index 9804eb60e336c12e4432a82009f560d5d316a313..0000000000000000000000000000000000000000
--- a/conversations/conv_054170.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6104",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_054185.json b/conversations/conv_054185.json
deleted file mode 100644
index 895b1eeb7dcaa95f2209b7a808cd26ce26f56728..0000000000000000000000000000000000000000
--- a/conversations/conv_054185.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_054189.json b/conversations/conv_054189.json
deleted file mode 100644
index 05381960cc37e4140ef78f8fa2138f85969c5af6..0000000000000000000000000000000000000000
--- a/conversations/conv_054189.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_054192.json b/conversations/conv_054192.json
deleted file mode 100644
index 6a9ce64650e7a9c72673e2e1fdb13dddb9cdbe94..0000000000000000000000000000000000000000
--- a/conversations/conv_054192.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3793.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/94-3792.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3361-130131.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_054193.json b/conversations/conv_054193.json
deleted file mode 100644
index d7736bdb2520aed1650cb183d0d96a398202c02e..0000000000000000000000000000000000000000
--- a/conversations/conv_054193.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_054202.json b/conversations/conv_054202.json
deleted file mode 100644
index 9f5e82939d8afba28b51e4a12e2cc954037784ab..0000000000000000000000000000000000000000
--- a/conversations/conv_054202.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-58090.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_054203.json b/conversations/conv_054203.json
deleted file mode 100644
index 49def83fef33491b35066277d01712372bc269d1..0000000000000000000000000000000000000000
--- a/conversations/conv_054203.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "real_speaker_id": "233",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2285-149890.flac |",
-      "real_speaker_id": "2285",
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-      "start_time": 22.855311326670634,
-      "speaker_id": "2285"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054214.json b/conversations/conv_054214.json
deleted file mode 100644
index 64e9b4aebc67044eada7f16a2f6a7580c35f7f20..0000000000000000000000000000000000000000
--- a/conversations/conv_054214.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4757-1811.flac |",
-      "real_speaker_id": "4757",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-56723.flac |",
-      "real_speaker_id": "5038",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.816230065570636,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 72773
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "5038-34576",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5038-34576.flac |",
-      "real_speaker_id": "5038",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-      "speaker_id": "7555"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_054218.json b/conversations/conv_054218.json
deleted file mode 100644
index d15f4702ee176c4f3e19ed6d7cd8316e7e5d079d..0000000000000000000000000000000000000000
--- a/conversations/conv_054218.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "7515",
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-      "real_speaker_id": "196",
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-      "segment_id": "seg0002",
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-      "position_frames": 0
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-      "real_speaker_id": "196",
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-      "speaker_id": 0,
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-      "real_speaker_id": "7515",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054222.json b/conversations/conv_054222.json
deleted file mode 100644
index 80e1afb53dff82daf817cb8cac1386961ef133f5..0000000000000000000000000000000000000000
--- a/conversations/conv_054222.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.980255732385892,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "373-130974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130974.flac |",
-      "real_speaker_id": "373",
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-    {
-      "segment_id": "seg0001",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "real_speaker_id": "7946",
-      "position_frames": 91821
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-  "paralinguistic_events": [
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_054229.json b/conversations/conv_054229.json
deleted file mode 100644
index d6a2d4454b8c8f741d750c540dbbf7478bbf54ef..0000000000000000000000000000000000000000
--- a/conversations/conv_054229.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
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-    {
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-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 136022
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.22360858675069,
-      "end_time": 32.0,
-      "duration": 2.7763914132493106,
-      "start_frame": 467577,
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-      "utterance_id": "576-129623",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/576-129623.flac |",
-      "real_speaker_id": "576",
-      "position_frames": 170442
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/156110.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/26/cough/0097.wav",
-      "duration": 1.18,
-      "start_time": 4.002977351473488,
-      "speaker_id": "26"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/576/laugh/0122.wav",
-      "duration": 1.06,
-      "start_time": 5.656747295570323,
-      "speaker_id": "576"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/26/cough/0089.wav",
-      "duration": 0.6621869919631105,
-      "start_time": 9.917630028382472,
-      "speaker_id": "26"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054234.json b/conversations/conv_054234.json
deleted file mode 100644
index f3c649e77009c6b9c1ce399de27489fbd667a31c..0000000000000000000000000000000000000000
--- a/conversations/conv_054234.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.003494966697614,
-      "duration": 5.003494966697614,
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-      "overlap": false,
-      "utterance_id": "4660-25053",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25053.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.3081872848955305,
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-      "duration_frames": 85618,
-      "overlap": false,
-      "utterance_id": "192-128344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128344.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.289328441731072,
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-      "duration": 6.105248409514354,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128344.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 85618
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.885913199416244,
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-      "utterance_id": "1878-122452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1878-122452.flac |",
-      "real_speaker_id": "1878",
-      "position_frames": 59097
-    },
-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "4660-25053",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4660-25053.flac |",
-      "real_speaker_id": "4660",
-      "position_frames": 80055
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  ],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "192"
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-    {
-      "event_class": "cough",
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-      "event_class": "cough",
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-      "speaker_id": "4660"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054238.json b/conversations/conv_054238.json
deleted file mode 100644
index 3da7b2d7706db83cf59f55eaf88d2fb23425b1bf..0000000000000000000000000000000000000000
--- a/conversations/conv_054238.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "2053-138888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
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-    {
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-      "utterance_id": "2053-138901",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138901.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6332-64734.flac |",
-      "real_speaker_id": "6332",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2053-138888.flac |",
-      "real_speaker_id": "2053",
-      "position_frames": 55363
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "3896-134415",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3896-134415.flac |",
-      "real_speaker_id": "3896",
-      "position_frames": 53410
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3896-134415.flac |",
-      "real_speaker_id": "3896",
-      "position_frames": 153575
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
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-  "paralinguistic_events": [
-    {
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-      "speaker_id": "2053"
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "3896"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054243.json b/conversations/conv_054243.json
deleted file mode 100644
index 0ad8ac4e0ba01076502b7e2c4a0186ae18480471..0000000000000000000000000000000000000000
--- a/conversations/conv_054243.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "446-123502",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/446-123502.flac |",
-      "real_speaker_id": "446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "real_speaker_id": "1648",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7795-105407.flac |",
-      "real_speaker_id": "7795",
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-    {
-      "segment_id": "seg0003",
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-    {
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-      "position_frames": 104976
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "1648-144971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1648-144971.flac |",
-      "real_speaker_id": "1648",
-      "position_frames": 167800
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/103076_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1648/laugh/0001.wav",
-      "duration": 1.48,
-      "start_time": 3.0839391499269073,
-      "speaker_id": "1648"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7795/laugh/0029.wav",
-      "duration": 1.0208329105589107,
-      "start_time": 18.049458221043633,
-      "speaker_id": "7795"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054255.json b/conversations/conv_054255.json
deleted file mode 100644
index dc053d9af8d98cf885ec4132295372a829503e5e..0000000000000000000000000000000000000000
--- a/conversations/conv_054255.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.6053881643778958,
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-      "duration_frames": 57686,
-      "overlap": false,
-      "utterance_id": "4104-181012",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-181012.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.9592573130499966,
-      "end_time": 7.323629775898488,
-      "duration": 3.3643724628484915,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-279865.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
-    },
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-      "speaker_id": 1,
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-      "utterance_id": "4104-185522",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4104-185522.flac |",
-      "real_speaker_id": "4104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.14860834837981,
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-      "utterance_id": "8296-266250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-266250.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.62225295768949,
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-      "overlap": false,
-      "utterance_id": "6620-283138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.931432003518815,
-      "end_time": 32.0,
-      "duration": 3.0685679964811854,
-      "start_frame": 462902,
-      "duration_frames": 49097,
-      "overlap": false,
-      "utterance_id": "8296-279865",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8296-279865.flac |",
-      "real_speaker_id": "8296",
-      "position_frames": 53829
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8296/laugh/0064.wav",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4104/laugh/0082.wav",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8296/laugh/0131.wav",
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-      "speaker_id": "8296"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6620/laugh/0055.wav",
-      "duration": 1.08,
-      "start_time": 22.524986445842796,
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-    {
-      "event_class": "cough",
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-      "duration": 1.2228516673841703,
-      "start_time": 30.77714833261583,
-      "speaker_id": "8296"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054259.json b/conversations/conv_054259.json
deleted file mode 100644
index 069e0d9cd52777dd7c18ad637d1a7549d001f2b0..0000000000000000000000000000000000000000
--- a/conversations/conv_054259.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "8033-104515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-104515.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-1187.flac |",
-      "real_speaker_id": "5054",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158781.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.636806171349171,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158796.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 20.60042491567811,
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-      "overlap": false,
-      "utterance_id": "8033-283463",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8033-283463.flac |",
-      "real_speaker_id": "8033",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 25.878118310621232,
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-      "utterance_id": "1343-158796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1343-158796.flac |",
-      "real_speaker_id": "1343",
-      "position_frames": 81511
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.5755968446119,
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-      "duration": 0.4244031553880987,
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-      "duration_frames": 6790,
-      "overlap": false,
-      "utterance_id": "5054-18527",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5054-18527.flac |",
-      "real_speaker_id": "5054",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "duration": 1.44,
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-    {
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-      "speaker_id": "5054"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054263.json b/conversations/conv_054263.json
deleted file mode 100644
index d5f52b1b0bf273c3707a9f3541bf8689e14d97f0..0000000000000000000000000000000000000000
--- a/conversations/conv_054263.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8419-293473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-293473.flac |",
-      "real_speaker_id": "8419",
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-      "real_speaker_id": "8419",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.063771800364258,
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-      "utterance_id": "8419-293473",
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-      "real_speaker_id": "8419",
-      "position_frames": 100158
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration": 2.0807084229566577,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4262-14487.flac |",
-      "real_speaker_id": "4262",
-      "position_frames": 95224
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054268.json b/conversations/conv_054268.json
deleted file mode 100644
index 94aa6738c5481b20ebad8a45c25afe38b39abeb8..0000000000000000000000000000000000000000
--- a/conversations/conv_054268.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12545.flac |",
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-      "position_frames": 0
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-      "utterance_id": "4246-12544",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4246-12544.flac |",
-      "real_speaker_id": "4246",
-      "position_frames": 92305
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.192931792810306,
-      "end_time": 32.0,
-      "duration": 4.807068207189694,
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-      "utterance_id": "1681-142301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1681-142301.flac |",
-      "real_speaker_id": "1681",
-      "position_frames": 64581
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 9.249761369520023,
-      "speaker_id": "4246"
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-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 24.553488213020362,
-      "speaker_id": "4246"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054275.json b/conversations/conv_054275.json
deleted file mode 100644
index de81f1e378680406596533d9a3d93431b807503e..0000000000000000000000000000000000000000
--- a/conversations/conv_054275.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "4915-245690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.7257288471341194,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121406.flac |",
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-      "position_frames": 0
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-      "utterance_id": "4915-245690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121408.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "4915-113765",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-113765.flac |",
-      "real_speaker_id": "4915",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.419013830741,
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-      "duration_frames": 92938,
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-      "utterance_id": "1646-121408",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1646-121408.flac |",
-      "real_speaker_id": "1646",
-      "position_frames": 55332
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.53705417474052,
-      "end_time": 32.0,
-      "duration": 0.4629458252594816,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4915-245690.flac |",
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-      "position_frames": 143800
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_054279.json b/conversations/conv_054279.json
deleted file mode 100644
index 8e6f686e1fdc62170825ee18ce369503617ad22a..0000000000000000000000000000000000000000
--- a/conversations/conv_054279.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2522-147156",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2522-147156.flac |",
-      "real_speaker_id": "2522",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "8630-305212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305212.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-291969.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 24.83595255419208,
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-      "utterance_id": "8630-305212",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305212.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 102309
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.107079350793978,
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-      "duration": 1.8929206492060224,
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-      "overlap": false,
-      "utterance_id": "8630-305213",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8630-305213.flac |",
-      "real_speaker_id": "8630",
-      "position_frames": 105238
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8630/cough/0084.wav",
-      "duration": 0.8017914682365344,
-      "start_time": 19.435440467203424,
-      "speaker_id": "8630"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054280.json b/conversations/conv_054280.json
deleted file mode 100644
index 1a7d69a89c641f5bf01475a4953415a7ab086afd..0000000000000000000000000000000000000000
--- a/conversations/conv_054280.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.54540304009268,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_frame": 0,
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-      "utterance_id": "1691-142296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.0736038022426895,
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-      "utterance_id": "7665-104978",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7665-104978.flac |",
-      "real_speaker_id": "7665",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "real_speaker_id": "1691",
-      "position_frames": 53860
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.576254386222782,
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-      "utterance_id": "3079-164971",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3079-164971.flac |",
-      "real_speaker_id": "3079",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "7665",
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 105618,
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-      "utterance_id": "1691-142296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 154591
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "start_time": 4.773571405994738,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7665/cough/0010.wav",
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-    {
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-      "speaker_id": "3079"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054287.json b/conversations/conv_054287.json
deleted file mode 100644
index a36ce96fa064da8da636fa15ceaedc77f623dcbd..0000000000000000000000000000000000000000
--- a/conversations/conv_054287.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration_frames": 57378,
-      "overlap": false,
-      "utterance_id": "7909-106370",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7909-106370.flac |",
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-      "real_speaker_id": "8072",
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-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_054291.json b/conversations/conv_054291.json
deleted file mode 100644
index ca2afa9da0648c1b361d4e81c222a89f39585849..0000000000000000000000000000000000000000
--- a/conversations/conv_054291.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8771-294523",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8771-294523.flac |",
-      "real_speaker_id": "8771",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.28391457970225,
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-      "utterance_id": "953-130625",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40170.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/953-130625.flac |",
-      "real_speaker_id": "953",
-      "position_frames": 156842
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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\ No newline at end of file
diff --git a/conversations/conv_054296.json b/conversations/conv_054296.json
deleted file mode 100644
index 2201e275afafbcbfccfff194af6250763bad8657..0000000000000000000000000000000000000000
--- a/conversations/conv_054296.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.51881607868159,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7505-83618.flac |",
-      "real_speaker_id": "7505",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.28688411024012,
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-      "real_speaker_id": "7839",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "position_frames": 90233
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054306.json b/conversations/conv_054306.json
deleted file mode 100644
index 62332fbdc7b12ac40d5776b5165b57448d621fb9..0000000000000000000000000000000000000000
--- a/conversations/conv_054306.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7777-106366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7777-106366.flac |",
-      "real_speaker_id": "7777",
-      "position_frames": 0
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-    {
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-      "utterance_id": "7802-104398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104398.flac |",
-      "real_speaker_id": "7802",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "2380-152158",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2380-152158.flac |",
-      "real_speaker_id": "2380",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104394.flac |",
-      "real_speaker_id": "7802",
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-    {
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-      "utterance_id": "7777-106367",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "7802-104391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104391.flac |",
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-  "foreground_events": [
-    {
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-      "event_class": "laugh",
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_054310.json b/conversations/conv_054310.json
deleted file mode 100644
index 2db413ec44f93f71f61dc4e2a14e26416666d778..0000000000000000000000000000000000000000
--- a/conversations/conv_054310.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.709540196217358,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1985-144468.flac |",
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-      "position_frames": 90341
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_054326.json b/conversations/conv_054326.json
deleted file mode 100644
index 133dd11360d7a7698819bb8f824fcc54d8d47eab..0000000000000000000000000000000000000000
--- a/conversations/conv_054326.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
-      "real_speaker_id": "7559",
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96247.flac |",
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-      "position_frames": 164039
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_054330.json b/conversations/conv_054330.json
deleted file mode 100644
index f84e3e4f1ac3f1e8e45083dd5227516bd4689757..0000000000000000000000000000000000000000
--- a/conversations/conv_054330.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2618-138042.flac |",
-      "real_speaker_id": "2618",
-      "position_frames": 191303
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140040.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 167360
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_054346.json b/conversations/conv_054346.json
deleted file mode 100644
index 4a48d43262fbd5ff43077d8f9ab6ca8a70863df8..0000000000000000000000000000000000000000
--- a/conversations/conv_054346.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "4415-16759",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4415-16759.flac |",
-      "real_speaker_id": "4415",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6548-39672.flac |",
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-      "position_frames": 0
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-      "position_frames": 55149
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "start_time": 30.84,
-      "speaker_id": "6548"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054347.json b/conversations/conv_054347.json
deleted file mode 100644
index 2e33c13dc7e0c53d51133ce020da6ffe0787a633..0000000000000000000000000000000000000000
--- a/conversations/conv_054347.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.17659050492327,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.34111522106704,
-      "duration": 4.34111522106704,
-      "start_frame": 0,
-      "duration_frames": 69457,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.106590027380921,
-      "end_time": 8.549273813109552,
-      "duration": 3.4426837857286308,
-      "start_frame": 81705,
-      "duration_frames": 55082,
-      "overlap": false,
-      "utterance_id": "4063-186231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4063-186231.flac |",
-      "real_speaker_id": "4063",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 9.183686491912013,
-      "end_time": 14.194601456054645,
-      "duration": 5.010914964142631,
-      "start_frame": 146938,
-      "duration_frames": 80174,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 69457
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.010673450499018,
-      "end_time": 20.902773754574135,
-      "duration": 5.892100304075116,
-      "start_frame": 240170,
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-      "overlap": false,
-      "utterance_id": "4063-186231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4063-186231.flac |",
-      "real_speaker_id": "4063",
-      "position_frames": 55082
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.208601834891557,
-      "end_time": 25.237516265258876,
-      "duration": 4.028914430367317,
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-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 149631
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.453184170019867,
-      "end_time": 30.545725697013115,
-      "duration": 5.092541526993248,
-      "start_frame": 407250,
-      "duration_frames": 81480,
-      "overlap": false,
-      "utterance_id": "1789-142896",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1789-142896.flac |",
-      "real_speaker_id": "1789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.110380260841602,
-      "end_time": 31.17659050492327,
-      "duration": 1.0662102440816668,
-      "start_frame": 481766,
-      "duration_frames": 17059,
-      "overlap": true,
-      "utterance_id": "4063-12915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4063-12915.flac |",
-      "real_speaker_id": "4063",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
-      "duration": 12.30750566893424,
-      "start_time": 12.421736327899666
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/417229.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3258/cough/0103.wav",
-      "duration": 1.24,
-      "start_time": 0,
-      "speaker_id": "3258"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4063/laugh/0045.wav",
-      "duration": 1.0,
-      "start_time": 21.073799111624496,
-      "speaker_id": "4063"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3258/laugh/0034.wav",
-      "duration": 0.6858711680535059,
-      "start_time": 24.46350963051154,
-      "speaker_id": "3258"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1789/cough/0043.wav",
-      "duration": 1.16,
-      "start_time": 30.623909498708493,
-      "speaker_id": "1789"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054351.json b/conversations/conv_054351.json
deleted file mode 100644
index 8f155c70c856d54a61f087149dc2411ed74a50f1..0000000000000000000000000000000000000000
--- a/conversations/conv_054351.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 3.9877625525031926,
-      "duration": 3.9877625525031926,
-      "start_frame": 0,
-      "duration_frames": 63804,
-      "overlap": false,
-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.94275106260982,
-      "end_time": 9.456567726851574,
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-      "overlap": false,
-      "utterance_id": "4546-16781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16781.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.276072873807152,
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-      "overlap": false,
-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 13.2766251054421,
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-      "duration": 3.9448072458497543,
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-      "overlap": true,
-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.773201705909678,
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-      "overlap": false,
-      "utterance_id": "4546-16812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16812.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 22.635315384450024,
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-      "duration": 5.091589160664892,
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-      "duration_frames": 81465,
-      "overlap": false,
-      "utterance_id": "7733-106800",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7733-106800.flac |",
-      "real_speaker_id": "7733",
-      "position_frames": 53778
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 27.918133145289527,
-      "end_time": 32.0,
-      "duration": 4.081866854710473,
-      "start_frame": 446690,
-      "duration_frames": 65309,
-      "overlap": false,
-      "utterance_id": "3082-165428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3082-165428.flac |",
-      "real_speaker_id": "3082",
-      "position_frames": 126920
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 19.101189517089843,
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_3.wav",
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-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3082/laugh/0004.wav",
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-      "speaker_id": "3082"
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-    {
-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054356.json b/conversations/conv_054356.json
deleted file mode 100644
index d65fb868ca358e5e052d5c6f44483bc663adecca..0000000000000000000000000000000000000000
--- a/conversations/conv_054356.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6159-58440.flac |",
-      "real_speaker_id": "6159",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "3654-171138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3654-171138.flac |",
-      "real_speaker_id": "3654",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3654",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6159-39642",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6159-39642.flac |",
-      "real_speaker_id": "6159",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 3.1325341958014334,
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-      "utterance_id": "8699-291107",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8699-291107.flac |",
-      "real_speaker_id": "8699",
-      "position_frames": 76479
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_054367.json b/conversations/conv_054367.json
deleted file mode 100644
index 13822f3f9e61fb5f022c88f74e978bf4acc45383..0000000000000000000000000000000000000000
--- a/conversations/conv_054367.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "5656-44576",
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-      "real_speaker_id": "5656",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5656",
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "459",
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-    {
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-      "utterance_id": "3272-167426",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3272-167426.flac |",
-      "real_speaker_id": "3272",
-      "position_frames": 74844
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
-      "duration": 0.4329251700680272,
-      "start_time": 19.885196048807146
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_054371.json b/conversations/conv_054371.json
deleted file mode 100644
index 22e0737023b3728b2d5a6f5840f56b5ed49f2757..0000000000000000000000000000000000000000
--- a/conversations/conv_054371.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.3438968074431,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.4448188719084225,
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-      "overlap": false,
-      "utterance_id": "228-121761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-121761.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.086254820666228,
-      "end_time": 9.923638296625235,
-      "duration": 4.837383475959007,
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-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.566395350016668,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-131212.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 17.074207739826992,
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-      "utterance_id": "228-121761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-121761.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 71117
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "228-121761",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/228-121761.flac |",
-      "real_speaker_id": "228",
-      "position_frames": 120790
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 70483,
-      "overlap": false,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 77398
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.512671090389727,
-      "end_time": 31.3438968074431,
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-      "overlap": true,
-      "utterance_id": "3258-169291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3258-169291.flac |",
-      "real_speaker_id": "3258",
-      "position_frames": 147881
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 0.88,
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-    {
-      "event_class": "cough",
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-      "duration": 0.6184369286837039,
-      "start_time": 31.381563071316297,
-      "speaker_id": "3258"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054383.json b/conversations/conv_054383.json
deleted file mode 100644
index 5689a4c019f4ef49417fc745aa62a7ab43a9ce3e..0000000000000000000000000000000000000000
--- a/conversations/conv_054383.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8500-258285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258285.flac |",
-      "real_speaker_id": "8500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.612135268906604,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122828.flac |",
-      "real_speaker_id": "16",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122828.flac |",
-      "real_speaker_id": "16",
-      "position_frames": 66543
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-123167.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.203968929905287,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8500-258285.flac |",
-      "real_speaker_id": "8500",
-      "position_frames": 110563
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "16-122827",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122827.flac |",
-      "real_speaker_id": "16",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
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-      "duration": 0.4581124534801795,
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-      "duration_frames": 7329,
-      "overlap": false,
-      "utterance_id": "192-128344",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/192-128344.flac |",
-      "real_speaker_id": "192",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054384.json b/conversations/conv_054384.json
deleted file mode 100644
index e75aa12be1d0673ba5c3588dbfe34b488b2a5a6f..0000000000000000000000000000000000000000
--- a/conversations/conv_054384.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3618-175932.flac |",
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-      "utterance_id": "3618-178097",
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-      "real_speaker_id": "16",
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-    {
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-      "real_speaker_id": "1513",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "3618",
-      "position_frames": 72248
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
-    {
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_054388.json b/conversations/conv_054388.json
deleted file mode 100644
index 4d842a7536ba8970bfbcb908057cfdc6894370d3..0000000000000000000000000000000000000000
--- a/conversations/conv_054388.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1685-146849",
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-      "real_speaker_id": "1685",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146849.flac |",
-      "real_speaker_id": "1685",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "start_time": 27.617453216891793,
-      "speaker_id": "1685"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054392.json b/conversations/conv_054392.json
deleted file mode 100644
index f9551156cf0a9c7c846e49d22cfb1f634af57479..0000000000000000000000000000000000000000
--- a/conversations/conv_054392.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8413-284515",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8413-284515.flac |",
-      "real_speaker_id": "8413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.910955806942545,
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-      "utterance_id": "7286-92930",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7286-92930.flac |",
-      "real_speaker_id": "7286",
-      "position_frames": 0
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-      "utterance_id": "8413-284521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8413-284521.flac |",
-      "real_speaker_id": "8413",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.333136584188626,
-      "end_time": 26.25014800285765,
-      "duration": 6.917011418669025,
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-      "duration_frames": 110672,
-      "overlap": false,
-      "utterance_id": "1621-141595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141595.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.360248666039773,
-      "end_time": 32.0,
-      "duration": 5.639751333960227,
-      "start_frame": 421763,
-      "duration_frames": 90236,
-      "overlap": false,
-      "utterance_id": "1621-141595",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1621-141595.flac |",
-      "real_speaker_id": "1621",
-      "position_frames": 110672
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/408348_1.wav",
-      "duration": 12.924511949598006,
-      "start_time": 4.19692265702579
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/71218_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8413/laugh/0062.wav",
-      "duration": 1.4,
-      "start_time": 2.793303064458864,
-      "speaker_id": "8413"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7286/laugh/0040.wav",
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-      "speaker_id": "7286"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054395.json b/conversations/conv_054395.json
deleted file mode 100644
index 13b1b5d4fdbc038560fa2fa73f33781963648d8a..0000000000000000000000000000000000000000
--- a/conversations/conv_054395.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "1773-145712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145712.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "start_time": 7.976297498960198,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 0
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-      "utterance_id": "1828-141203",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 52104
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1773-145716",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145716.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 112096
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.13783365252312,
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-      "utterance_id": "5983-39666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5983-39666.flac |",
-      "real_speaker_id": "5983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.98133287605929,
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-      "start_frame": 495701,
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-      "utterance_id": "1773-145712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1773-145712.flac |",
-      "real_speaker_id": "1773",
-      "position_frames": 108430
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
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-      "event_class": "Dishes",
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-      "event_class": "cough",
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-      "speaker_id": "1828"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1828/cough/0004.wav",
-      "duration": 0.7609112191518318,
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-      "speaker_id": "1828"
-    },
-    {
-      "event_class": "laugh",
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-      "duration": 1.68,
-      "start_time": 30.32,
-      "speaker_id": "1773"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054403.json b/conversations/conv_054403.json
deleted file mode 100644
index 6878bef245e47fbe241f395831415d7683459804..0000000000000000000000000000000000000000
--- a/conversations/conv_054403.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2792-152929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.420372701291915,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-144136.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "5883-59268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 12.401294480875029,
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-      "utterance_id": "2792-152929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 57234
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.880193937174603,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5883-59268.flac |",
-      "real_speaker_id": "5883",
-      "position_frames": 61543
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.836797816334958,
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-      "overlap": false,
-      "utterance_id": "3001-160984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3001-160984.flac |",
-      "real_speaker_id": "3001",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.058771447215562,
-      "end_time": 32.0,
-      "duration": 1.9412285527844375,
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-      "duration_frames": 31059,
-      "overlap": false,
-      "utterance_id": "2792-152929",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2792-152929.flac |",
-      "real_speaker_id": "2792",
-      "position_frames": 159025
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-  "foreground_events": [
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/56563_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2792/cough/0137.wav",
-      "duration": 1.14,
-      "start_time": 0,
-      "speaker_id": "2792"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2792/cough/0054.wav",
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-      "speaker_id": "2792"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054404.json b/conversations/conv_054404.json
deleted file mode 100644
index fcfc90f99f0f57d5ce23bad339e6cd9a6c70fb0c..0000000000000000000000000000000000000000
--- a/conversations/conv_054404.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.851844958250986,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1505-1303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1303.flac |",
-      "real_speaker_id": "1505",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.093545633412001,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6544-231862.flac |",
-      "real_speaker_id": "6544",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "real_speaker_id": "6544",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054408.json b/conversations/conv_054408.json
deleted file mode 100644
index ae936ae80e17f0cc35f7d6ec0db2ffc31cdf720f..0000000000000000000000000000000000000000
--- a/conversations/conv_054408.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.344791608321273,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1331-155890",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155890.flac |",
-      "real_speaker_id": "1331",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-204.flac |",
-      "real_speaker_id": "92",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "7802-104391",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104391.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.483918095554216,
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-      "utterance_id": "1331-155892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1331-155892.flac |",
-      "real_speaker_id": "1331",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-6488.flac |",
-      "real_speaker_id": "92",
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054412.json b/conversations/conv_054412.json
deleted file mode 100644
index e8d59e12746f8d2b692140d9ec2055a249188cbf..0000000000000000000000000000000000000000
--- a/conversations/conv_054412.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "421-128336",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-291500.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
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-      "real_speaker_id": "7255",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7255-291500.flac |",
-      "real_speaker_id": "7255",
-      "position_frames": 85301
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "position_frames": 63507
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-      "event_class": "Cat",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054415.json b/conversations/conv_054415.json
deleted file mode 100644
index fd54c3909c8c4c6e0b426cda75cf58aac3fc3ec6..0000000000000000000000000000000000000000
--- a/conversations/conv_054415.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6904-262305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262305.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "6773-76039",
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-      "real_speaker_id": "6773",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262305.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 53492
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3967-292604",
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-      "real_speaker_id": "3967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "6773",
-      "position_frames": 102014
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3967-292604.flac |",
-      "real_speaker_id": "3967",
-      "position_frames": 97911
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6904/laugh/0023.wav",
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-      "duration": 1.36,
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-      "speaker_id": "3967"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054424.json b/conversations/conv_054424.json
deleted file mode 100644
index 289c5b6db8eaf9276a3add65a9773622d326a33a..0000000000000000000000000000000000000000
--- a/conversations/conv_054424.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "8447-286257",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-286257.flac |",
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-      "position_frames": 0
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-    {
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-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "utterance_id": "5951-57348",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5951-57348.flac |",
-      "real_speaker_id": "5951",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.101569358674993,
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-      "duration": 2.8984306413250067,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/75-853.flac |",
-      "real_speaker_id": "75",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-      "duration": 1.64,
-      "start_time": 30.36,
-      "speaker_id": "75"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054428.json b/conversations/conv_054428.json
deleted file mode 100644
index b37992f77888de8698b396b2760e5dc7cc959f9e..0000000000000000000000000000000000000000
--- a/conversations/conv_054428.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8113-301693",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301693.flac |",
-      "real_speaker_id": "8113",
-      "position_frames": 0
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-      "real_speaker_id": "664",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4854-24732.flac |",
-      "real_speaker_id": "4854",
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\ No newline at end of file
diff --git a/conversations/conv_054432.json b/conversations/conv_054432.json
deleted file mode 100644
index 1251486847bfe7fb9a08ce75999e8a021d20f6ba..0000000000000000000000000000000000000000
--- a/conversations/conv_054432.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3003-12539.flac |",
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-      "position_frames": 179811
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_054442.json b/conversations/conv_054442.json
deleted file mode 100644
index 34122a0849462df5364ea92bbd27c34c19b03b1f..0000000000000000000000000000000000000000
--- a/conversations/conv_054442.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-    {
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-      "duration": 0.98418223365432,
-      "start_time": 26.22647041363094,
-      "speaker_id": "7525"
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-      "event_class": "laugh",
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-      "duration": 1.1924132635096076,
-      "start_time": 27.751868000828683,
-      "speaker_id": "4234"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054445.json b/conversations/conv_054445.json
deleted file mode 100644
index 9846b3d24af0e7b6159697442a30a7df9992c3e3..0000000000000000000000000000000000000000
--- a/conversations/conv_054445.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1868-145459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-145459.flac |",
-      "real_speaker_id": "1868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.220441973551406,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-155990.flac |",
-      "real_speaker_id": "233",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "6367-74004",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-74004.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.98087101816327,
-      "end_time": 22.535584193298924,
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-      "utterance_id": "1868-145473",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-145473.flac |",
-      "real_speaker_id": "1868",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "6367-65536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6367-65536.flac |",
-      "real_speaker_id": "6367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.304168589037083,
-      "end_time": 32.0,
-      "duration": 3.695831410962917,
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-      "duration_frames": 59133,
-      "overlap": false,
-      "utterance_id": "1868-2318",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-2318.flac |",
-      "real_speaker_id": "1868",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "duration": 1.32,
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-      "event_class": "laugh",
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-      "speaker_id": "6367"
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-}
\ No newline at end of file
diff --git a/conversations/conv_054449.json b/conversations/conv_054449.json
deleted file mode 100644
index f99751a46447f2ac5efa6503bc1830843ffea1f5..0000000000000000000000000000000000000000
--- a/conversations/conv_054449.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
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-      "real_speaker_id": "6685",
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-      "real_speaker_id": "254",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/254-12312.flac |",
-      "real_speaker_id": "254",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.198903140255993,
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-      "utterance_id": "6685-70976",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70976.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 75760
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.780042419327422,
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-      "duration": 5.2199575806725775,
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-      "overlap": false,
-      "utterance_id": "1384-130459",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1384-130459.flac |",
-      "real_speaker_id": "1384",
-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-      "event_class": "Cat",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054453.json b/conversations/conv_054453.json
deleted file mode 100644
index deaa8fa54488f2d58e539d9dac3ee9c98374769f..0000000000000000000000000000000000000000
--- a/conversations/conv_054453.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "830-130728",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/830-130728.flac |",
-      "real_speaker_id": "830",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/203-132069.flac |",
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-      "real_speaker_id": "830",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "830",
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-      "real_speaker_id": "203",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8148-286229",
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_054454.json b/conversations/conv_054454.json
deleted file mode 100644
index a488ed7f7743885d87dded15e1dfd0336057782b..0000000000000000000000000000000000000000
--- a/conversations/conv_054454.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2448-163521",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2448-163521.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
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-      "position_frames": 70048
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "duration": 0.92,
-      "start_time": 0,
-      "speaker_id": "2448"
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-      "event_class": "cough",
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-      "speaker_id": "2448"
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-}
\ No newline at end of file
diff --git a/conversations/conv_054465.json b/conversations/conv_054465.json
deleted file mode 100644
index d5810e7720a738e5971652a07e32daefadd9fbbf..0000000000000000000000000000000000000000
--- a/conversations/conv_054465.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.038298258912743,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "3681-111567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-111567.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.269362362992567,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1084-145077.flac |",
-      "real_speaker_id": "1084",
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-      "start_time": 11.029107176643457,
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3909-149794",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-149794.flac |",
-      "real_speaker_id": "3909",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.43914846658162,
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-      "utterance_id": "3681-111567",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3681-111567.flac |",
-      "real_speaker_id": "3681",
-      "position_frames": 103219
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3909-11695.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Running_water",
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\ No newline at end of file
diff --git a/conversations/conv_054468.json b/conversations/conv_054468.json
deleted file mode 100644
index 1a67e6f3ba45a3238c2a292aa0dc5f1b34191d58..0000000000000000000000000000000000000000
--- a/conversations/conv_054468.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134883.flac |",
-      "real_speaker_id": "128",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-121528.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2046-141204.flac |",
-      "real_speaker_id": "2046",
-      "position_frames": 66064
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-130878.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 95592
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "event_class": "Cat",
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-      "speaker_id": "2046"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054469.json b/conversations/conv_054469.json
deleted file mode 100644
index b7a0a7bf12ddfce5d5b54ca8feea2768faf7be5c..0000000000000000000000000000000000000000
--- a/conversations/conv_054469.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8772-295710.flac |",
-      "real_speaker_id": "8772",
-      "position_frames": 0
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-      "real_speaker_id": "6121",
-      "position_frames": 138563
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-    {
-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "speaker_id": "8772"
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-}
\ No newline at end of file
diff --git a/conversations/conv_054473.json b/conversations/conv_054473.json
deleted file mode 100644
index 68788b7f923b25f8fefeb8c38549f5e477c6c144..0000000000000000000000000000000000000000
--- a/conversations/conv_054473.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8180-274724.flac |",
-      "real_speaker_id": "8180",
-      "position_frames": 0
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-      "real_speaker_id": "8180",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/271399_0.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_054486.json b/conversations/conv_054486.json
deleted file mode 100644
index 0a457befb14d343dd251a264ecb8ce954f7f5c91..0000000000000000000000000000000000000000
--- a/conversations/conv_054486.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.62416404319859,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "5186-7793",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 11.816675306588241,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 82995
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.09588735726155,
-      "end_time": 22.48186478746486,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
-      "position_frames": 163482
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1784-142294.flac |",
-      "real_speaker_id": "1784",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5186-7793.flac |",
-      "real_speaker_id": "5186",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/71936.wav",
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\ No newline at end of file
diff --git a/conversations/conv_054487.json b/conversations/conv_054487.json
deleted file mode 100644
index ef49e8d784ec8c1fa1fe10fbffdb2dec4e75d1c7..0000000000000000000000000000000000000000
--- a/conversations/conv_054487.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6620-283138.flac |",
-      "real_speaker_id": "6620",
-      "position_frames": 49531
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "1545",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
-      "real_speaker_id": "2748",
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_054490.json b/conversations/conv_054490.json
deleted file mode 100644
index 43e6271dc6a916de943c3491a4bb572c488ff07b..0000000000000000000000000000000000000000
--- a/conversations/conv_054490.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
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-    },
-    {
-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "6512-72577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6512-72577.flac |",
-      "real_speaker_id": "6512",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6512-72577",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6512-72577.flac |",
-      "real_speaker_id": "6512",
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-      "segment_id": "seg0004",
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-      "segment_id": "seg0005",
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-      "utterance_id": "7644-104722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
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-      "position_frames": 142168
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "start_time": 30.76,
-      "speaker_id": "7644"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054500.json b/conversations/conv_054500.json
deleted file mode 100644
index 8caba64a4e0baf5c3f491419cdad60e72c7eedff..0000000000000000000000000000000000000000
--- a/conversations/conv_054500.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.849811657386603,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1446-122614",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3894-6553.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1446-122614.flac |",
-      "real_speaker_id": "1446",
-      "position_frames": 185235
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-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.153716225195501,
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054507.json b/conversations/conv_054507.json
deleted file mode 100644
index 6972fa8974ed430e0f477bc7bc703f646fbcfdc8..0000000000000000000000000000000000000000
--- a/conversations/conv_054507.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "1653-142374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142374.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.8618917400277635,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4848-28247.flac |",
-      "real_speaker_id": "4848",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "duration_frames": 102999,
-      "overlap": true,
-      "utterance_id": "1653-141272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-141272.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.99900541432295,
-      "end_time": 20.813747074010642,
-      "duration": 3.81474165968769,
-      "start_frame": 271984,
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-      "overlap": false,
-      "utterance_id": "1653-141272",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-141272.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 102999
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "1653-142374",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142374.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 57261
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
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\ No newline at end of file
diff --git a/conversations/conv_054511.json b/conversations/conv_054511.json
deleted file mode 100644
index 852899c0a7d74e4d1137fa040e70d105791327a6..0000000000000000000000000000000000000000
--- a/conversations/conv_054511.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 111764
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7239",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7962-110061.flac |",
-      "real_speaker_id": "7962",
-      "position_frames": 210019
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 37441,
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-      "utterance_id": "5198-204974",
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-      "real_speaker_id": "5198",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_054516.json b/conversations/conv_054516.json
deleted file mode 100644
index 58be887eee71828f7904d7e543989e7de7d8ff91..0000000000000000000000000000000000000000
--- a/conversations/conv_054516.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.467451162729194,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "utterance_id": "4535-279856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4535-279856.flac |",
-      "real_speaker_id": "4535",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "real_speaker_id": "4379",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173565.flac |",
-      "real_speaker_id": "3168",
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054520.json b/conversations/conv_054520.json
deleted file mode 100644
index 635579da903fcc12fb6c1e5ee5db85e669f7dbf1..0000000000000000000000000000000000000000
--- a/conversations/conv_054520.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1212-75242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-75242.flac |",
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-      "position_frames": 0
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-      "utterance_id": "240-160592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/240-160592.flac |",
-      "real_speaker_id": "240",
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-      "speaker_id": 0,
-      "start_time": 27.345491909253333,
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-      "utterance_id": "1212-14653",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1212-14653.flac |",
-      "real_speaker_id": "1212",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_054536.json b/conversations/conv_054536.json
deleted file mode 100644
index 0502425de9f9d6bc5d061aab64c8cb8c6516ae39..0000000000000000000000000000000000000000
--- a/conversations/conv_054536.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.958665805282,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "100-121669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.866909427713534,
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-      "utterance_id": "100-121669",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121669.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 54855
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.10876937852499,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301693.flac |",
-      "real_speaker_id": "8113",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "100-121674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/100-121674.flac |",
-      "real_speaker_id": "100",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8113-301694.flac |",
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-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_054541.json b/conversations/conv_054541.json
deleted file mode 100644
index d072ad2c2df710ff1e590aa568a174ff77bade6e..0000000000000000000000000000000000000000
--- a/conversations/conv_054541.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6395",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.13415147223179,
-      "end_time": 21.34666046445411,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6395-87997.flac |",
-      "real_speaker_id": "6395",
-      "position_frames": 139890
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "3180",
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\ No newline at end of file
diff --git a/conversations/conv_054546.json b/conversations/conv_054546.json
deleted file mode 100644
index 2732a051b7f5348bf180406a9230a06feeb4d282..0000000000000000000000000000000000000000
--- a/conversations/conv_054546.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6035-80463.flac |",
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-      "position_frames": 100060
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-    {
-      "segment_id": "seg0005",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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\ No newline at end of file
diff --git a/conversations/conv_054550.json b/conversations/conv_054550.json
deleted file mode 100644
index 720a59380a60d2f8bcd5a8a0f108ae9c5d051c60..0000000000000000000000000000000000000000
--- a/conversations/conv_054550.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "speaker_id": "2393"
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\ No newline at end of file
diff --git a/conversations/conv_054557.json b/conversations/conv_054557.json
deleted file mode 100644
index 138f5e531aa719df91496136370bf4c6452b3719..0000000000000000000000000000000000000000
--- a/conversations/conv_054557.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "6411",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6880-216547.flac |",
-      "real_speaker_id": "6880",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.31943296455392,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
-      "real_speaker_id": "7376",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.349613677350995,
-      "end_time": 32.0,
-      "duration": 6.650386322649005,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7376-96150.flac |",
-      "real_speaker_id": "7376",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_054561.json b/conversations/conv_054561.json
deleted file mode 100644
index d51624ac4d39f792b369129956fb1c25db21dd7a..0000000000000000000000000000000000000000
--- a/conversations/conv_054561.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5480-41791.flac |",
-      "real_speaker_id": "5480",
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "3835",
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\ No newline at end of file
diff --git a/conversations/conv_054577.json b/conversations/conv_054577.json
deleted file mode 100644
index fc6d7a7e779f2b9fd79da03fc3adecd260284aaa..0000000000000000000000000000000000000000
--- a/conversations/conv_054577.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/249-121331.flac |",
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-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_054582.json b/conversations/conv_054582.json
deleted file mode 100644
index 6b944dd1a3ec99eed4fa20aeff96cfe1b6698885..0000000000000000000000000000000000000000
--- a/conversations/conv_054582.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1498/laugh/0033.wav",
-      "duration": 1.6,
-      "start_time": 18.557073529491912,
-      "speaker_id": "1498"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7335/laugh/0085.wav",
-      "duration": 1.1154489947050672,
-      "start_time": 24.33233333061103,
-      "speaker_id": "7335"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.6,
-      "start_time": 30.4,
-      "speaker_id": "7335"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054594.json b/conversations/conv_054594.json
deleted file mode 100644
index 6c77de222feffdec8086e86ce3de3256d427e69c..0000000000000000000000000000000000000000
--- a/conversations/conv_054594.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.337206917696704,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6927-87732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6927-87732.flac |",
-      "real_speaker_id": "6927",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.194485420758397,
-      "end_time": 11.349718091062758,
-      "duration": 5.15523267030436,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7635-105409.flac |",
-      "real_speaker_id": "7635",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "utterance_id": "2407-7664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7664.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "7635-105409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7635-105409.flac |",
-      "real_speaker_id": "7635",
-      "position_frames": 82483
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.34386656513346,
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-      "overlap": false,
-      "utterance_id": "6927-87732",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6927-87732.flac |",
-      "real_speaker_id": "6927",
-      "position_frames": 85395
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.086914886619933,
-      "end_time": 32.0,
-      "duration": 0.9130851133800668,
-      "start_frame": 497390,
-      "duration_frames": 14609,
-      "overlap": false,
-      "utterance_id": "2407-7664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7664.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 104286
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
-      "duration": 25.14095609960372,
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-  ],
-  "foreground_events": [
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-      "event_class": "Cat",
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_1.wav",
-      "duration": 1.9414603465423759,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2407/laugh/0024.wav",
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7635/laugh/0047.wav",
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-      "speaker_id": "7635"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054595.json b/conversations/conv_054595.json
deleted file mode 100644
index 12b09e74b2e5b8fabb1496bbdc4211eca9a1fa65..0000000000000000000000000000000000000000
--- a/conversations/conv_054595.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.63762803068246,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5655-46267",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46267.flac |",
-      "real_speaker_id": "5655",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.993973830422943,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5655-46268.flac |",
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-      "position_frames": 0
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-      "utterance_id": "5007-31603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31603.flac |",
-      "real_speaker_id": "5007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.640299680803817,
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-      "utterance_id": "1349-135891",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135891.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.763261241217453,
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-      "duration_frames": 61273,
-      "overlap": false,
-      "utterance_id": "5007-31609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5007-31609.flac |",
-      "real_speaker_id": "5007",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.00283618277276,
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-      "duration_frames": 74156,
-      "overlap": false,
-      "utterance_id": "1349-135892",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1349-135892.flac |",
-      "real_speaker_id": "1349",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_2.wav",
-      "duration": 0.7175510204081633,
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-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5655/laugh/0034.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5007/laugh/0054.wav",
-      "duration": 0.9364871662122203,
-      "start_time": 15.146861596375736,
-      "speaker_id": "5007"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1349/cough/0028.wav",
-      "duration": 0.7196534665860719,
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-      "speaker_id": "1349"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054598.json b/conversations/conv_054598.json
deleted file mode 100644
index 72f930760a4900d87ae9ca45c8d0892e0647e4ac..0000000000000000000000000000000000000000
--- a/conversations/conv_054598.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "4116-13265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-13265.flac |",
-      "real_speaker_id": "4116",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.0774848964145205,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8631-283727.flac |",
-      "real_speaker_id": "8631",
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-      "utterance_id": "3083-7944",
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-      "real_speaker_id": "3083",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "utterance_id": "4116-13265",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4116-13265.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "3083",
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-      "segment_id": "seg0005",
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-      "utterance_id": "8631-281208",
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-      "real_speaker_id": "8631",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-    {
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "3083"
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-    {
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8631/cough/0048.wav",
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-      "speaker_id": "8631"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054599.json b/conversations/conv_054599.json
deleted file mode 100644
index 98f74adff6b8847986f17c6b5e69bd53924e147e..0000000000000000000000000000000000000000
--- a/conversations/conv_054599.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.145857368445785,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8138-293531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293531.flac |",
-      "real_speaker_id": "8138",
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-    {
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8138-293529",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3567",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.468780549865155,
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-      "overlap": false,
-      "utterance_id": "2351-151970",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2351-151970.flac |",
-      "real_speaker_id": "2351",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.50048043620006,
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-      "overlap": true,
-      "utterance_id": "8138-293529",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8138-293529.flac |",
-      "real_speaker_id": "8138",
-      "position_frames": 71221
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352273.wav",
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-    {
-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8138/laugh/0057.wav",
-      "duration": 1.44,
-      "start_time": 1.9913508507433213,
-      "speaker_id": "8138"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8138/cough/0084.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054605.json b/conversations/conv_054605.json
deleted file mode 100644
index 39874b54066eb07d0d60604bb8491e81ac626b32..0000000000000000000000000000000000000000
--- a/conversations/conv_054605.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.122248269855632,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.508815078788267,
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-      "utterance_id": "5389-41911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-41911.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.6512052536487465,
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-      "utterance_id": "1498-140040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140040.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.02984862474495,
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-      "duration_frames": 95920,
-      "overlap": false,
-      "utterance_id": "5389-41911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-41911.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 104141
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "1498-140041",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1498-140041.flac |",
-      "real_speaker_id": "1498",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.55025946608493,
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-      "overlap": false,
-      "utterance_id": "5389-41911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5389-41911.flac |",
-      "real_speaker_id": "5389",
-      "position_frames": 200061
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.87214065318706,
-      "end_time": 31.122248269855632,
-      "duration": 1.250107616668572,
-      "start_frame": 477954,
-      "duration_frames": 20001,
-      "overlap": true,
-      "utterance_id": "2374-155651",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2374-155651.flac |",
-      "real_speaker_id": "2374",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
-      "duration": 15.825188142577659,
-      "start_time": 6.012346916839332
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/325254_0.wav",
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-      "start_time": 11.055994418320877
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "start_time": 1.9954626318275732
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.3893512098976606,
-      "start_time": 21.66582526147202,
-      "speaker_id": "1498"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.56,
-      "start_time": 28.20754460593046,
-      "speaker_id": "2374"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054609.json b/conversations/conv_054609.json
deleted file mode 100644
index ee99bc28483801c1b68016363bbc9a2997aa7638..0000000000000000000000000000000000000000
--- a/conversations/conv_054609.json
+++ /dev/null
@@ -1,173 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.20888630203591,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "7059-77897",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-77897.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.061532614280185,
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-      "utterance_id": "1691-142296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "start_time": 12.02837355800064,
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-      "overlap": false,
-      "utterance_id": "7059-88364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7059-88364.flac |",
-      "real_speaker_id": "7059",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.47642607717152,
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-      "duration": 5.293801220225814,
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-      "overlap": false,
-      "utterance_id": "2085-147968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147968.flac |",
-      "real_speaker_id": "2085",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.309331257618886,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 93243
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-      "segment_id": "seg0005",
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-      "utterance_id": "1691-142296",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1691-142296.flac |",
-      "real_speaker_id": "1691",
-      "position_frames": 149210
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "2085-147968",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2085-147968.flac |",
-      "real_speaker_id": "2085",
-      "position_frames": 84700
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-  ],
-  "paralinguistic_events": [
-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7059/laugh/0017.wav",
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-    {
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-      "duration": 1.58,
-      "start_time": 3.4528857242266295,
-      "speaker_id": "1691"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7059/laugh/0066.wav",
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-      "speaker_id": "7059"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7059/cough/0072.wav",
-      "duration": 1.12,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2085/laugh/0092.wav",
-      "duration": 1.0,
-      "start_time": 16.890961218120754,
-      "speaker_id": "2085"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1691/cough/0059.wav",
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-      "speaker_id": "1691"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2085/laugh/0115.wav",
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-      "speaker_id": "2085"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054613.json b/conversations/conv_054613.json
deleted file mode 100644
index 0f249bafc1a74e4f84e98a565bdf59683e1aa928..0000000000000000000000000000000000000000
--- a/conversations/conv_054613.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "7139-75360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75360.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-283130.flac |",
-      "real_speaker_id": "8273",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-88748.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-283127.flac |",
-      "real_speaker_id": "8273",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.12269080372682,
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-      "overlap": false,
-      "utterance_id": "7139-75362",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75362.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.87803389413786,
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-      "duration": 1.121966105862139,
-      "start_frame": 494048,
-      "duration_frames": 17951,
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-      "utterance_id": "8273-283130",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8273-283130.flac |",
-      "real_speaker_id": "8273",
-      "position_frames": 70862
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8273/laugh/0065.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8273/laugh/0017.wav",
-      "duration": 1.0569760474136622,
-      "start_time": 30.940279304953222,
-      "speaker_id": "8273"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054625.json b/conversations/conv_054625.json
deleted file mode 100644
index b40be1ffeefb50a01a62b43d5ba18f4638863978..0000000000000000000000000000000000000000
--- a/conversations/conv_054625.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.390888243718337,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_054629.json b/conversations/conv_054629.json
deleted file mode 100644
index 41ab39cb2df3748af47bb31d6bc59eb36f661d98..0000000000000000000000000000000000000000
--- a/conversations/conv_054629.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.60776371212473,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "1403-135907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-135907.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
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-      "start_time": 4.312807974793364,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/92-204.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8441-120274.flac |",
-      "real_speaker_id": "8441",
-      "position_frames": 55839
-    },
-    {
-      "segment_id": "seg0006",
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\ No newline at end of file
diff --git a/conversations/conv_054633.json b/conversations/conv_054633.json
deleted file mode 100644
index 7fa34286abc7adf6161a91874f6bbf95a373f63b..0000000000000000000000000000000000000000
--- a/conversations/conv_054633.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
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-      "position_frames": 77441
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4959-28865.flac |",
-      "real_speaker_id": "4959",
-      "position_frames": 268240
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-  ],
-  "background_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 1.4,
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-      "speaker_id": "2577"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054638.json b/conversations/conv_054638.json
deleted file mode 100644
index 533a5b7a14d6ff6ead28309d437fea45ea6748e4..0000000000000000000000000000000000000000
--- a/conversations/conv_054638.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "922-132291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132291.flac |",
-      "real_speaker_id": "922",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/207-143321.flac |",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "5910",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "207",
-      "position_frames": 88480
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_054643.json b/conversations/conv_054643.json
deleted file mode 100644
index a996bed3643e92a40786ce69c0ccb2c4198a7590..0000000000000000000000000000000000000000
--- a/conversations/conv_054643.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
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-      "real_speaker_id": "2660",
-      "position_frames": 85092
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7491-110524.flac |",
-      "real_speaker_id": "7491",
-      "position_frames": 83848
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "2660"
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-      "event_class": "cough",
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-      "speaker_id": "7491"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054644.json b/conversations/conv_054644.json
deleted file mode 100644
index eb2b534bdbe0b6303fdf6b63d1a21905762e3763..0000000000000000000000000000000000000000
--- a/conversations/conv_054644.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2758-86040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86040.flac |",
-      "real_speaker_id": "2758",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "1225-129526",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129526.flac |",
-      "real_speaker_id": "1225",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86588.flac |",
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-      "position_frames": 56056
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3045-155991.flac |",
-      "real_speaker_id": "3045",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1225-129526.flac |",
-      "real_speaker_id": "1225",
-      "position_frames": 78191
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.713265169430777,
-      "end_time": 32.0,
-      "duration": 3.286734830569223,
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-      "utterance_id": "2758-86040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2758-86040.flac |",
-      "real_speaker_id": "2758",
-      "position_frames": 59704
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054648.json b/conversations/conv_054648.json
deleted file mode 100644
index 9fd8100ccf1e1f6a0bb91e68aafc6f836a60b1cf..0000000000000000000000000000000000000000
--- a/conversations/conv_054648.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7402-90848.flac |",
-      "real_speaker_id": "7402",
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-    {
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-      "position_frames": 59668
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 101927
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.863060417492036,
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-      "duration": 5.070736849684153,
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-      "duration_frames": 81131,
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-      "utterance_id": "2393-144496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2393-144496.flac |",
-      "real_speaker_id": "2393",
-      "position_frames": 133712
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6875/laugh/0087.wav",
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-      "speaker_id": "6875"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054652.json b/conversations/conv_054652.json
deleted file mode 100644
index caa064f513349569f2485cc17a62468d760444e9..0000000000000000000000000000000000000000
--- a/conversations/conv_054652.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-    {
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-      "utterance_id": "428-125877",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/428-125877.flac |",
-      "real_speaker_id": "428",
-      "position_frames": 100074
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
-      "duration": 16.143945578231293,
-      "start_time": 13.170133925841855
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/588_1.wav",
-      "duration": 4.540612076006371,
-      "start_time": 2.3804714515758683
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5233/laugh/0038.wav",
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-      "start_time": 4.646121291726808,
-      "speaker_id": "5233"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5233/cough/0052.wav",
-      "duration": 0.30364561622436115,
-      "start_time": 0,
-      "speaker_id": "5233"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/428/laugh/0009.wav",
-      "duration": 1.52,
-      "start_time": 18.0397597910858,
-      "speaker_id": "428"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/428/cough/0096.wav",
-      "duration": 0.5824556592906192,
-      "start_time": 16.551013866742906,
-      "speaker_id": "428"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5468/cough/0130.wav",
-      "duration": 1.3922403070227929,
-      "start_time": 22.481937936319824,
-      "speaker_id": "5468"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054653.json b/conversations/conv_054653.json
deleted file mode 100644
index 6b05a1d5b48a32104576e5eb4a8f8d55c73c6a1a..0000000000000000000000000000000000000000
--- a/conversations/conv_054653.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.73704782876746,
-      "duration": 4.73704782876746,
-      "start_frame": 0,
-      "duration_frames": 75792,
-      "overlap": false,
-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.200671953469919,
-      "end_time": 9.504484115684418,
-      "duration": 4.303812162214499,
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-      "duration_frames": 68860,
-      "overlap": false,
-      "utterance_id": "1571-141320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-141320.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.928384783200775,
-      "end_time": 14.098522690393525,
-      "duration": 4.17013790719275,
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-      "duration_frames": 66722,
-      "overlap": false,
-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 75792
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.261232123912503,
-      "end_time": 19.18821354583397,
-      "duration": 4.926981421921469,
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-      "duration_frames": 78831,
-      "overlap": false,
-      "utterance_id": "1571-141320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-141320.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 68860
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.771963408609714,
-      "end_time": 23.808179343369407,
-      "duration": 4.036215934759691,
-      "start_frame": 316351,
-      "duration_frames": 64579,
-      "overlap": false,
-      "utterance_id": "6178-86034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6178-86034.flac |",
-      "real_speaker_id": "6178",
-      "position_frames": 142514
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.03591338846124,
-      "end_time": 28.506372018392142,
-      "duration": 4.470458629930903,
-      "start_frame": 384574,
-      "duration_frames": 71527,
-      "overlap": false,
-      "utterance_id": "1571-141320",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1571-141320.flac |",
-      "real_speaker_id": "1571",
-      "position_frames": 147691
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.83900217117764,
-      "end_time": 32.0,
-      "duration": 3.16099782882236,
-      "start_frame": 461424,
-      "duration_frames": 50575,
-      "overlap": false,
-      "utterance_id": "572-96582",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/572-96582.flac |",
-      "real_speaker_id": "572",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_6.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6178/laugh/0032.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6178/laugh/0045.wav",
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-      "event_class": "cough",
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-      "speaker_id": "572"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054664.json b/conversations/conv_054664.json
deleted file mode 100644
index 394bea72541b32cee40d5b16533eb0430ea8a13e..0000000000000000000000000000000000000000
--- a/conversations/conv_054664.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.969600586981965,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.067848085481194,
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-      "overlap": false,
-      "utterance_id": "5781-52137",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5781-52137.flac |",
-      "real_speaker_id": "5781",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.850861749932867,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1259-27120.flac |",
-      "real_speaker_id": "1259",
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-      "segment_id": "seg0002",
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-      "overlap": true,
-      "utterance_id": "7995-276907",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-276907.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.574842377505007,
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-      "utterance_id": "1259-27120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1259-27120.flac |",
-      "real_speaker_id": "1259",
-      "position_frames": 84528
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.527569468872898,
-      "end_time": 26.29369989888295,
-      "duration": 5.766130430010053,
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-      "duration_frames": 92258,
-      "overlap": true,
-      "utterance_id": "7995-276908",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-276908.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.135255827538632,
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-      "duration_frames": 77349,
-      "overlap": false,
-      "utterance_id": "1259-27120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1259-27120.flac |",
-      "real_speaker_id": "1259",
-      "position_frames": 143956
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
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-  "paralinguistic_events": [
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-      "start_time": 0,
-      "speaker_id": "5781"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1259/laugh/0019.wav",
-      "duration": 1.6,
-      "start_time": 4.227908962427081,
-      "speaker_id": "1259"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7995/laugh/0054.wav",
-      "duration": 1.56,
-      "start_time": 13.323280645774457,
-      "speaker_id": "7995"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054668.json b/conversations/conv_054668.json
deleted file mode 100644
index 3f6df057804090a6ab5de535733ca23b4d6e3084..0000000000000000000000000000000000000000
--- a/conversations/conv_054668.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "789-153211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153211.flac |",
-      "real_speaker_id": "789",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.117086414897034,
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-      "duration": 3.524334650487164,
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-      "duration_frames": 56389,
-      "overlap": false,
-      "utterance_id": "3054-128242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.399860987259778,
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-      "duration_frames": 83746,
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-      "utterance_id": "789-153215",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153215.flac |",
-      "real_speaker_id": "789",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "3054-128244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128244.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.984794216397443,
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-      "overlap": false,
-      "utterance_id": "3054-128245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128245.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.018125790293848,
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-      "overlap": false,
-      "utterance_id": "789-153211",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/789-153211.flac |",
-      "real_speaker_id": "789",
-      "position_frames": 73015
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.099935092393483,
-      "end_time": 32.0,
-      "duration": 3.9000649076065166,
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-      "duration_frames": 62401,
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-      "utterance_id": "3054-128242",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3054-128242.flac |",
-      "real_speaker_id": "3054",
-      "position_frames": 56389
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64014.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/789/laugh/0071.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3054/laugh/0052.wav",
-      "duration": 1.16,
-      "start_time": 16.280367871853933,
-      "speaker_id": "3054"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3054/cough/0013.wav",
-      "duration": 0.94,
-      "start_time": 14.061374721198113,
-      "speaker_id": "3054"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3054/cough/0066.wav",
-      "duration": 0.96,
-      "start_time": 23.565482888046954,
-      "speaker_id": "3054"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054672.json b/conversations/conv_054672.json
deleted file mode 100644
index 4c79456acbe0275fd7c9638f1e44972797c7a828..0000000000000000000000000000000000000000
--- a/conversations/conv_054672.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.04692937218099,
-      "duration": 4.04692937218099,
-      "start_frame": 0,
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-      "utterance_id": "7766-275147",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7766-275147.flac |",
-      "real_speaker_id": "7766",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.075218397211379,
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-      "real_speaker_id": "8543",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054679.json b/conversations/conv_054679.json
deleted file mode 100644
index f53e59fe454090cdad12d4992fb4f2c493f61d38..0000000000000000000000000000000000000000
--- a/conversations/conv_054679.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.470991527882482,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2294-169656.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 133064
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 78261
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054680.json b/conversations/conv_054680.json
deleted file mode 100644
index 39abcea6d0c76baccf7b2359822e56d5e3addb3e..0000000000000000000000000000000000000000
--- a/conversations/conv_054680.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "4492",
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-      "real_speaker_id": "6724",
-      "position_frames": 85827
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "4492",
-      "position_frames": 172758
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-  ],
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "4492"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054687.json b/conversations/conv_054687.json
deleted file mode 100644
index efa8dc51316703297c5d0a466cabe86ae27b4017..0000000000000000000000000000000000000000
--- a/conversations/conv_054687.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1685-146845.flac |",
-      "real_speaker_id": "1685",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8242-279771.flac |",
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-    {
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_054691.json b/conversations/conv_054691.json
deleted file mode 100644
index 10a82cca1781f042de8b14a38b19ca57bb403ff6..0000000000000000000000000000000000000000
--- a/conversations/conv_054691.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.587237098412434,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1513-140221.flac |",
-      "real_speaker_id": "1513",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3368-170951.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_054696.json b/conversations/conv_054696.json
deleted file mode 100644
index 605dbcf850aabdb66583064aa5586a79dd94cc7c..0000000000000000000000000000000000000000
--- a/conversations/conv_054696.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3733-140718.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_054701.json b/conversations/conv_054701.json
deleted file mode 100644
index d5fc8311e894c7204a52663367dbad557afe3af1..0000000000000000000000000000000000000000
--- a/conversations/conv_054701.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_054706.json b/conversations/conv_054706.json
deleted file mode 100644
index 449e2fcc06ec5b4c0f40635c444f4362fb136898..0000000000000000000000000000000000000000
--- a/conversations/conv_054706.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "duration": 1.32,
-      "start_time": 26.050660161102954,
-      "speaker_id": "1079"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054716.json b/conversations/conv_054716.json
deleted file mode 100644
index 7e2ad3d73145f3ad8eb99cef313b043e9292086f..0000000000000000000000000000000000000000
--- a/conversations/conv_054716.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-140654.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-135654.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
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-      "speaker_id": 1,
-      "start_time": 17.66907867560709,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5271-34505.flac |",
-      "real_speaker_id": "5271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.157511721810238,
-      "end_time": 30.24132110068401,
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-      "utterance_id": "4402-3067",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4402-3067.flac |",
-      "real_speaker_id": "4402",
-      "position_frames": 71922
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 31.092997723495927,
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-      "duration": 0.9070022765040733,
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-      "utterance_id": "1392-128240",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1392-128240.flac |",
-      "real_speaker_id": "1392",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352266.wav",
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-      "event_class": "laugh",
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-      "start_time": 30.8,
-      "speaker_id": "1392"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054717.json b/conversations/conv_054717.json
deleted file mode 100644
index 7756f627c9a7547582ea1f19a3761eaa4f2201da..0000000000000000000000000000000000000000
--- a/conversations/conv_054717.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "1569-141082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141082.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 6.787194781843062,
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-      "utterance_id": "1569-141081",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3143-160993.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3143-160993.flac |",
-      "real_speaker_id": "3143",
-      "position_frames": 80220
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1569-141081.flac |",
-      "real_speaker_id": "1569",
-      "position_frames": 153341
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-      "speaker_id": "1569"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054721.json b/conversations/conv_054721.json
deleted file mode 100644
index 3d5b3c3384602a13b23f4367268d4e34735cffc7..0000000000000000000000000000000000000000
--- a/conversations/conv_054721.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8778-246974",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8778-246974.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6798-77737.flac |",
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-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_054737.json b/conversations/conv_054737.json
deleted file mode 100644
index cf50d07ea74d3c07df1dff2b0a1cafac7fafb328..0000000000000000000000000000000000000000
--- a/conversations/conv_054737.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/16-122827.flac |",
-      "real_speaker_id": "16",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/366069.wav",
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "start_time": 0,
-      "speaker_id": "4313"
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-      "event_class": "cough",
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-      "speaker_id": "4313"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054740.json b/conversations/conv_054740.json
deleted file mode 100644
index 83b5ff5e409291517cbc34677bd1ee1dad74877f..0000000000000000000000000000000000000000
--- a/conversations/conv_054740.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.709138464239029,
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-      "overlap": false,
-      "utterance_id": "1313-135022",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135022.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.8422857213505495,
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-      "duration": 3.117398260340817,
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-      "duration_frames": 49878,
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-      "utterance_id": "2827-170438",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 0
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-      "utterance_id": "2827-170440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170440.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135020.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.501392583353223,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2827-170438.flac |",
-      "real_speaker_id": "2827",
-      "position_frames": 49878
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.494763588643817,
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-      "start_frame": 471916,
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-      "utterance_id": "4846-18524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 52073
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/406230.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054756.json b/conversations/conv_054756.json
deleted file mode 100644
index 0d0d72e45f819b1fed9e3b1ce6ecd9d9f49f7c3f..0000000000000000000000000000000000000000
--- a/conversations/conv_054756.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "real_speaker_id": "6418",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5688-15787.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39655.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1563-137590.flac |",
-      "real_speaker_id": "1563",
-      "position_frames": 67003
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-    {
-      "segment_id": "seg0006",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-      "speaker_id": "5688"
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-}
\ No newline at end of file
diff --git a/conversations/conv_054760.json b/conversations/conv_054760.json
deleted file mode 100644
index f14cee29ae2c3c7498552537d32817cb52d54600..0000000000000000000000000000000000000000
--- a/conversations/conv_054760.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 95121
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_054776.json b/conversations/conv_054776.json
deleted file mode 100644
index e205606d18c96dc37812d6c0b5b443980a7c4fcb..0000000000000000000000000000000000000000
--- a/conversations/conv_054776.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
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-    {
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-      "segment_id": "seg0003",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 153449
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_0.wav",
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-      "start_time": 15.297111502974836
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_054783.json b/conversations/conv_054783.json
deleted file mode 100644
index f31a95e42a80d4991d1003b5a7f4e006d1d689dc..0000000000000000000000000000000000000000
--- a/conversations/conv_054783.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "2092-145709",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145709.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-302581.flac |",
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-      "speaker_id": 1,
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-      "utterance_id": "2553-163692",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163692.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.80200739202726,
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-      "utterance_id": "6248-298838",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6248-298838.flac |",
-      "real_speaker_id": "6248",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.578434057349448,
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-      "utterance_id": "2092-145709",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145709.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 57673
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.994105394861812,
-      "end_time": 32.0,
-      "duration": 4.005894605138188,
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-      "utterance_id": "2553-163730",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2553-163730.flac |",
-      "real_speaker_id": "2553",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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\ No newline at end of file
diff --git a/conversations/conv_054784.json b/conversations/conv_054784.json
deleted file mode 100644
index 0c6a830149a1e9e8347b5e9f9e785040b5a5d3db..0000000000000000000000000000000000000000
--- a/conversations/conv_054784.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8447-284436.flac |",
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3945-890.flac |",
-      "real_speaker_id": "3945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_054792.json b/conversations/conv_054792.json
deleted file mode 100644
index c09ec3fdb27785a5ab6393e68da9374bfc3ea8e1..0000000000000000000000000000000000000000
--- a/conversations/conv_054792.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
-      "real_speaker_id": "781",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/781-127518.flac |",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_054795.json b/conversations/conv_054795.json
deleted file mode 100644
index d745c58da06829a1073d1ed87e279d41c5edebb5..0000000000000000000000000000000000000000
--- a/conversations/conv_054795.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "4152",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "duration": 1.2,
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-      "event_class": "laugh",
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-      "duration": 1.0,
-      "start_time": 25.9512433203549,
-      "speaker_id": "4152"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054799.json b/conversations/conv_054799.json
deleted file mode 100644
index 52c678788d7de33fa55c6cd9f81c42375be6cbae..0000000000000000000000000000000000000000
--- a/conversations/conv_054799.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.602322990745524,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.000226245411107,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.889021756401446,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 96003
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-      "segment_id": "seg0002",
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-      "utterance_id": "7177-120275",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-120275.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.90451770935945,
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-      "utterance_id": "887-123289",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/887-123289.flac |",
-      "real_speaker_id": "887",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.12792990932261,
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-      "utterance_id": "5217-24510",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5217-24510.flac |",
-      "real_speaker_id": "5217",
-      "position_frames": 181098
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.5232923698517,
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-      "utterance_id": "7177-258977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7177-258977.flac |",
-      "real_speaker_id": "7177",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_054803.json b/conversations/conv_054803.json
deleted file mode 100644
index b4c968df8bbce9900059a50986cc45a14af3f2f5..0000000000000000000000000000000000000000
--- a/conversations/conv_054803.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "2104-75220",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-75220.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 0
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-      "position_frames": 0
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-      "real_speaker_id": "1161",
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-75220.flac |",
-      "real_speaker_id": "2104",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2104-78253.flac |",
-      "real_speaker_id": "2104",
-      "position_frames": 89785
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.01999104732051,
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-      "utterance_id": "3895-6855",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3895-6855.flac |",
-      "real_speaker_id": "3895",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/220018.wav",
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-      "speaker_id": "2104"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054804.json b/conversations/conv_054804.json
deleted file mode 100644
index 7ff5df00a7a52214211bc854d4b53fec16d44b92..0000000000000000000000000000000000000000
--- a/conversations/conv_054804.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.689715385575358,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "1261-127742",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1261-127742.flac |",
-      "real_speaker_id": "1261",
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-    },
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-      "real_speaker_id": "4490",
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-      "segment_id": "seg0003",
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-      "utterance_id": "4490-16003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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\ No newline at end of file
diff --git a/conversations/conv_054808.json b/conversations/conv_054808.json
deleted file mode 100644
index ca1f1390ebf9c62cc0d3d88f26cbd8a283cba869..0000000000000000000000000000000000000000
--- a/conversations/conv_054808.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.90148304938551,
-  "num_speakers": 2,
-  "overlap_rate": 0.4,
-  "segments": [
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-      "utterance_id": "6358-73329",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
-      "real_speaker_id": "6358",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6358-73329.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054812.json b/conversations/conv_054812.json
deleted file mode 100644
index a6f0db9b99b33117bf719e1576f6a3d055c4fc4a..0000000000000000000000000000000000000000
--- a/conversations/conv_054812.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
-    },
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-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7398-98880.flac |",
-      "real_speaker_id": "7398",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.186462045663756,
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-      "utterance_id": "2100-138911",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2100-138911.flac |",
-      "real_speaker_id": "2100",
-      "position_frames": 66786
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.677897741875515,
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-      "utterance_id": "7241-90852",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
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-  "background_events": [
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-      "speaker_id": "2100"
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-}
\ No newline at end of file
diff --git a/conversations/conv_054815.json b/conversations/conv_054815.json
deleted file mode 100644
index 721094703fc58f3302f33fd0552758b5f13875eb..0000000000000000000000000000000000000000
--- a/conversations/conv_054815.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4863-24734.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142374.flac |",
-      "real_speaker_id": "1653",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1653-142374.flac |",
-      "real_speaker_id": "1653",
-      "position_frames": 74065
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-      "real_speaker_id": "4863",
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-    },
-    {
-      "segment_id": "seg0006",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054824.json b/conversations/conv_054824.json
deleted file mode 100644
index 8b5b7297cd67fb98c67694d08d0ff718db0f934a..0000000000000000000000000000000000000000
--- a/conversations/conv_054824.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/176-123271.flac |",
-      "real_speaker_id": "176",
-      "position_frames": 0
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-      "real_speaker_id": "1230",
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-  "foreground_events": [
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_054828.json b/conversations/conv_054828.json
deleted file mode 100644
index aab5ca087416c9059d7f5e90074e4aca16c60c02..0000000000000000000000000000000000000000
--- a/conversations/conv_054828.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1455-138263.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1455-134435.flac |",
-      "real_speaker_id": "1455",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_054829.json b/conversations/conv_054829.json
deleted file mode 100644
index fe8e244cf4b076a8bfd7e86abcebe6381b0c985c..0000000000000000000000000000000000000000
--- a/conversations/conv_054829.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.454276433543114,
-  "num_speakers": 2,
-  "overlap_rate": 0.6666666666666666,
-  "segments": [
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132300.flac |",
-      "real_speaker_id": "922",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132300.flac |",
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-      "position_frames": 89156
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "441-128988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128988.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "922-132291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132291.flac |",
-      "real_speaker_id": "922",
-      "position_frames": 0
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-  "background_events": [
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-      "event_class": "Running_water",
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-      "start_time": 28.195045535171232,
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-}
\ No newline at end of file
diff --git a/conversations/conv_054832.json b/conversations/conv_054832.json
deleted file mode 100644
index 0beead97c7b70670558478236bfcac046e1ac532..0000000000000000000000000000000000000000
--- a/conversations/conv_054832.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "151-125753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
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-      "real_speaker_id": "7859",
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-      "real_speaker_id": "151",
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-    {
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-      "real_speaker_id": "4693",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/151-125753.flac |",
-      "real_speaker_id": "151",
-      "position_frames": 272397
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-    {
-      "event_class": "laugh",
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-      "start_time": 28.236572020764104,
-      "speaker_id": "151"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054842.json b/conversations/conv_054842.json
deleted file mode 100644
index 7ebb81f784ec033279e70f0647d9297f5a571234..0000000000000000000000000000000000000000
--- a/conversations/conv_054842.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "duration": 3.296397098185034,
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-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.243966243060145,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90850.flac |",
-      "real_speaker_id": "7241",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 52742
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-    {
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-      "utterance_id": "26-496",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 124479
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 26.110561648100635,
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-      "start_frame": 417768,
-      "duration_frames": 94231,
-      "overlap": false,
-      "utterance_id": "2735-160603",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2735-160603.flac |",
-      "real_speaker_id": "2735",
-      "position_frames": 218092
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2735/cough/0060.wav",
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-      "start_time": 31.050496647219187,
-      "speaker_id": "2735"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054845.json b/conversations/conv_054845.json
deleted file mode 100644
index 1a79a45d007f88ea3af706c87d93df456414d614..0000000000000000000000000000000000000000
--- a/conversations/conv_054845.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.572428525006103,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "5002",
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-      "segment_id": "seg0003",
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-      "utterance_id": "8394-96177",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 64460
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.806222533001822,
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-      "duration_frames": 76373,
-      "overlap": false,
-      "utterance_id": "8394-96177",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8394-96177.flac |",
-      "real_speaker_id": "8394",
-      "position_frames": 133766
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.844617003599282,
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-      "utterance_id": "8238-283452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8238-283452.flac |",
-      "real_speaker_id": "8238",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8394/laugh/0015.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/8238/laugh/0106.wav",
-      "duration": 1.4,
-      "start_time": 29.04625862582602,
-      "speaker_id": "8238"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "8238"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054849.json b/conversations/conv_054849.json
deleted file mode 100644
index 2c0583837ae5dc785daef89c2985eb5d5ce34ca4..0000000000000000000000000000000000000000
--- a/conversations/conv_054849.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.10054661221827,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.867589397991941,
-      "duration": 5.867589397991941,
-      "start_frame": 0,
-      "duration_frames": 93881,
-      "overlap": false,
-      "utterance_id": "716-129581",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.136444965452391,
-      "end_time": 11.205027180301837,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129581.flac |",
-      "real_speaker_id": "716",
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/716-129582.flac |",
-      "real_speaker_id": "716",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "7644-104722",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7644-104722.flac |",
-      "real_speaker_id": "7644",
-      "position_frames": 81097
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-  "background_events": [
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-      "event_class": "Blender",
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-    {
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-      "start_time": 26.4701248396122,
-      "speaker_id": "7644"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054852.json b/conversations/conv_054852.json
deleted file mode 100644
index e7a71ccc675ab4f3c3e3fabfc606fbdd893ff89a..0000000000000000000000000000000000000000
--- a/conversations/conv_054852.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "470-123366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-123366.flac |",
-      "real_speaker_id": "470",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6139-58868.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 110145
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 28.03874963478227,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/470-123366.flac |",
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-      "position_frames": 59265
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-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_0.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "cough",
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-      "speaker_id": "6139"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/470/laugh/0125.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "470"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054853.json b/conversations/conv_054853.json
deleted file mode 100644
index ce2e2718afb86a799d5619eac547d39ad4fe65a6..0000000000000000000000000000000000000000
--- a/conversations/conv_054853.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7011-66622",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7011-66622.flac |",
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-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "951-138582",
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-    {
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-    {
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-      "start_time": 9.75323286853535,
-      "speaker_id": "951"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054854.json b/conversations/conv_054854.json
deleted file mode 100644
index 85d68db1cc97e2146d8234d2807811cd9c311a6b..0000000000000000000000000000000000000000
--- a/conversations/conv_054854.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.7491573592902423,
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-      "overlap": false,
-      "utterance_id": "957-132568",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132568.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8786028295632007,
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-      "duration": 4.575398883752355,
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-      "overlap": false,
-      "utterance_id": "922-132291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132291.flac |",
-      "real_speaker_id": "922",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 7.958972612140382,
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-      "duration_frames": 59444,
-      "overlap": true,
-      "utterance_id": "957-132537",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132537.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 12.26103240716443,
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-      "overlap": true,
-      "utterance_id": "922-132300",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132300.flac |",
-      "real_speaker_id": "922",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.394321806945257,
-      "end_time": 25.966983362963376,
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-      "utterance_id": "957-132537",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/957-132537.flac |",
-      "real_speaker_id": "957",
-      "position_frames": 59444
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.769984445590843,
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-      "utterance_id": "922-132291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/922-132291.flac |",
-      "real_speaker_id": "922",
-      "position_frames": 73206
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
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-      "event_class": "Dog",
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-      "start_time": 1.2133747792972163
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_054865.json b/conversations/conv_054865.json
deleted file mode 100644
index a1345450788c36e968ee4f9dc939fbd84d5bd4d0..0000000000000000000000000000000000000000
--- a/conversations/conv_054865.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.72288914716005,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "3196-151981",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3196-151981.flac |",
-      "real_speaker_id": "3196",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105386.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-133279.flac |",
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-      "position_frames": 0
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-      "utterance_id": "3728-105386",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105386.flac |",
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-      "position_frames": 96843
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "1271-136861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1271-136861.flac |",
-      "real_speaker_id": "1271",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.583591539727912,
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-      "duration_frames": 18228,
-      "overlap": true,
-      "utterance_id": "3728-105398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3728-105398.flac |",
-      "real_speaker_id": "3728",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
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-      "event_class": "laugh",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1271/laugh/0054.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054869.json b/conversations/conv_054869.json
deleted file mode 100644
index 330c0dd7b736a35fd4a580a647bf53a730ab84b7..0000000000000000000000000000000000000000
--- a/conversations/conv_054869.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2093-143262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2093-143262.flac |",
-      "real_speaker_id": "2093",
-      "position_frames": 0
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-    {
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-      "utterance_id": "3021-121438",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_054873.json b/conversations/conv_054873.json
deleted file mode 100644
index e58d0e9a86d02358c2d0cb0749f015e0da08062b..0000000000000000000000000000000000000000
--- a/conversations/conv_054873.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.6871097130543,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-    {
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054886.json b/conversations/conv_054886.json
deleted file mode 100644
index cc82a125debed8b0c837fe54df6a4eeef4380b82..0000000000000000000000000000000000000000
--- a/conversations/conv_054886.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.655984874715376,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.392599995603328,
-      "duration": 6.392599995603328,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "1054-143005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
-      "real_speaker_id": "1054",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.01087724962033,
-      "end_time": 10.872420151132765,
-      "duration": 3.8615429015124336,
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-      "utterance_id": "2292-150689",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2292-150689.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1054-143005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1054-143005.flac |",
-      "real_speaker_id": "1054",
-      "position_frames": 102281
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.53679700192706,
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-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.48161815002633,
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-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 102077
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.973214653097568,
-      "end_time": 31.655984874715376,
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-      "overlap": true,
-      "utterance_id": "3500-134409",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3500-134409.flac |",
-      "real_speaker_id": "3500",
-      "position_frames": 166750
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3500/laugh/0050.wav",
-      "duration": 0.5615466769215609,
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-      "event_class": "laugh",
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-      "start_time": 30.84395373398443,
-      "speaker_id": "3500"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054890.json b/conversations/conv_054890.json
deleted file mode 100644
index ec495d1312fc71202beb374498e5626c312daeee..0000000000000000000000000000000000000000
--- a/conversations/conv_054890.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6828-68770",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-68770.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279239.flac |",
-      "real_speaker_id": "8075",
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-      "overlap": false,
-      "utterance_id": "1914-121449",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121449.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 20.281342566770448,
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-      "utterance_id": "6828-64738",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6828-64738.flac |",
-      "real_speaker_id": "6828",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 26.036705505407618,
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-      "utterance_id": "1914-121446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1914-121446.flac |",
-      "real_speaker_id": "1914",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.723884523070588,
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-      "duration": 1.2761154769294123,
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-      "utterance_id": "8075-279239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8075-279239.flac |",
-      "real_speaker_id": "8075",
-      "position_frames": 92911
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.16,
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-    },
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.12,
-      "start_time": 29.548675649552298,
-      "speaker_id": "8075"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054891.json b/conversations/conv_054891.json
deleted file mode 100644
index bbedcbcbdba946a06e1c3cd9aa84e41941d3b103..0000000000000000000000000000000000000000
--- a/conversations/conv_054891.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.085445537334138,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1970-28415.flac |",
-      "real_speaker_id": "1970",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
-      "position_frames": 81460
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2254-152825.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_054900.json b/conversations/conv_054900.json
deleted file mode 100644
index ea38c31cbed8970f53716129c1a62eb01779cf41..0000000000000000000000000000000000000000
--- a/conversations/conv_054900.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7732/cough/0079.wav",
-      "duration": 0.9014290113929673,
-      "start_time": 29.62362697962472,
-      "speaker_id": "7732"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054907.json b/conversations/conv_054907.json
deleted file mode 100644
index 7e35372e278e72e7b6cd87492a592c3908d7c760..0000000000000000000000000000000000000000
--- a/conversations/conv_054907.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.427294705582765,
-      "duration": 4.427294705582765,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.282866458657399,
-      "end_time": 9.324347343953361,
-      "duration": 5.041480885295963,
-      "start_frame": 68525,
-      "duration_frames": 80663,
-      "overlap": true,
-      "utterance_id": "2272-152264",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152264.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.536496232570624,
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-      "duration": 6.579172951097455,
-      "start_frame": 168583,
-      "duration_frames": 105266,
-      "overlap": false,
-      "utterance_id": "2272-150674",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-150674.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.403227837999424,
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-      "duration": 5.787857290639437,
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-      "duration_frames": 92605,
-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 70836
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.93215436053658,
-      "end_time": 28.828183156606936,
-      "duration": 5.8960287960703575,
-      "start_frame": 366914,
-      "duration_frames": 94336,
-      "overlap": true,
-      "utterance_id": "2272-152262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2272-152262.flac |",
-      "real_speaker_id": "2272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.403302432037762,
-      "end_time": 32.0,
-      "duration": 2.596697567962238,
-      "start_frame": 470452,
-      "duration_frames": 41547,
-      "overlap": false,
-      "utterance_id": "7078-271888",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7078-271888.flac |",
-      "real_speaker_id": "7078",
-      "position_frames": 163441
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7078/laugh/0074.wav",
-      "duration": 0.8661554952059407,
-      "start_time": 4.512626914900908,
-      "speaker_id": "7078"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2272/laugh/0122.wav",
-      "duration": 1.1942624041897045,
-      "start_time": 9.52732879409393,
-      "speaker_id": "2272"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2272/cough/0020.wav",
-      "duration": 0.4512301898868699,
-      "start_time": 6.380597122123557,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7078/laugh/0038.wav",
-      "duration": 1.1,
-      "start_time": 16.187180873062804,
-      "speaker_id": "7078"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054911.json b/conversations/conv_054911.json
deleted file mode 100644
index 48b7109c7846f5b7dadeabc8f3e9e96c5acb389e..0000000000000000000000000000000000000000
--- a/conversations/conv_054911.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.557617298869806,
-      "duration": 4.557617298869806,
-      "start_frame": 0,
-      "duration_frames": 72921,
-      "overlap": false,
-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.4019266491392095,
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-      "overlap": false,
-      "utterance_id": "6904-262291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "5375-40162",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5375-40162.flac |",
-      "real_speaker_id": "5375",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.18787166691188,
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-      "duration": 5.7694346468800255,
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-      "overlap": false,
-      "utterance_id": "6904-262305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262305.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.496452439458977,
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-      "duration": 6.803429253358795,
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-      "duration_frames": 108854,
-      "overlap": false,
-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 72921
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.916642948665192,
-      "end_time": 32.0,
-      "duration": 2.083357051334808,
-      "start_frame": 478666,
-      "duration_frames": 33333,
-      "overlap": false,
-      "utterance_id": "6904-262291",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6904-262291.flac |",
-      "real_speaker_id": "6904",
-      "position_frames": 50815
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
-      "duration": 27.78238095238095,
-      "start_time": 0.052330866009412946
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-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/371920_2.wav",
-      "duration": 0.6760544217687074,
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352268.wav",
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-      "start_time": 27.637143692221606
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6694/laugh/0059.wav",
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-      "start_time": 0.3446091155077706,
-      "speaker_id": "6694"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6904/cough/0026.wav",
-      "duration": 0.7947966567565046,
-      "start_time": 31.205203343243497,
-      "speaker_id": "6904"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054916.json b/conversations/conv_054916.json
deleted file mode 100644
index 7bdb335f760b0e4484f5b04d338c9b63ba522d74..0000000000000000000000000000000000000000
--- a/conversations/conv_054916.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8005-113331",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113331.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.3326137385967165,
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-      "overlap": false,
-      "utterance_id": "3780-177788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177788.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113331.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 70878
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "3780-177782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177782.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.12238852152709,
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-      "utterance_id": "8005-113330",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113330.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.037221880256887,
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-      "utterance_id": "3780-177782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3780-177782.flac |",
-      "real_speaker_id": "3780",
-      "position_frames": 71698
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.98355679165034,
-      "end_time": 32.0,
-      "duration": 1.01644320834966,
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-      "duration_frames": 16263,
-      "overlap": false,
-      "utterance_id": "8005-113328",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8005-113328.flac |",
-      "real_speaker_id": "8005",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3780/laugh/0058.wav",
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-      "start_time": 16.573381360742204,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3780/laugh/0046.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8005/laugh/0001.wav",
-      "duration": 0.5992883012835104,
-      "start_time": 30.110015468180592,
-      "speaker_id": "8005"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054917.json b/conversations/conv_054917.json
deleted file mode 100644
index dba34608db062d40288a12ea33a5232d237a03e7..0000000000000000000000000000000000000000
--- a/conversations/conv_054917.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
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-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.366068924097176,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-293469.flac |",
-      "real_speaker_id": "8419",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 87121
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26660.flac |",
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-      "speaker_id": "8419"
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-}
\ No newline at end of file
diff --git a/conversations/conv_054920.json b/conversations/conv_054920.json
deleted file mode 100644
index 215beab97b33eb21b9667c59ea737536d6b4446d..0000000000000000000000000000000000000000
--- a/conversations/conv_054920.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "utterance_id": "4263-16194",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4263-16194.flac |",
-      "real_speaker_id": "4263",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7475-232691.flac |",
-      "real_speaker_id": "7475",
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-      "utterance_id": "4263-16187",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4263-16187.flac |",
-      "real_speaker_id": "4263",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "start_time": 24.450213458584045,
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-      "utterance_id": "8846-305217",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305217.flac |",
-      "real_speaker_id": "8846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.062444838735807,
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-      "duration": 2.937555161264193,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8846-305217.flac |",
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_054936.json b/conversations/conv_054936.json
deleted file mode 100644
index 651bd42641d2d0feed998f42a280ce0cbfcabf48..0000000000000000000000000000000000000000
--- a/conversations/conv_054936.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4051-11217.flac |",
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-      "real_speaker_id": "7923",
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-      "real_speaker_id": "4051",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_054941.json b/conversations/conv_054941.json
deleted file mode 100644
index 5b2763fea803ee38a8eb90ef08872a207ec30d89..0000000000000000000000000000000000000000
--- a/conversations/conv_054941.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_054946.json b/conversations/conv_054946.json
deleted file mode 100644
index 69730a6d90793ea85d70e801b1a0ed2a6012b619..0000000000000000000000000000000000000000
--- a/conversations/conv_054946.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.990435042829013,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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\ No newline at end of file
diff --git a/conversations/conv_054950.json b/conversations/conv_054950.json
deleted file mode 100644
index 91959d34da88c7a630970ce21af9c752e0089b56..0000000000000000000000000000000000000000
--- a/conversations/conv_054950.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_054957.json b/conversations/conv_054957.json
deleted file mode 100644
index 5005511cddad24867b032688190273a630461fe2..0000000000000000000000000000000000000000
--- a/conversations/conv_054957.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
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-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_054961.json b/conversations/conv_054961.json
deleted file mode 100644
index 1bdcb53d435e5988c4ea71918c2308cb6c926497..0000000000000000000000000000000000000000
--- a/conversations/conv_054961.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
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-  "num_speakers": 3,
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-}
\ No newline at end of file
diff --git a/conversations/conv_054977.json b/conversations/conv_054977.json
deleted file mode 100644
index 283d7b5485a34934d8f289b9b1ce6fdfda4b1bc7..0000000000000000000000000000000000000000
--- a/conversations/conv_054977.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_054982.json b/conversations/conv_054982.json
deleted file mode 100644
index 3c16d04c01b7eb5328161b4754646e465b9bf565..0000000000000000000000000000000000000000
--- a/conversations/conv_054982.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5022-29411.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1168-134958.flac |",
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-      "real_speaker_id": "791",
-      "position_frames": 0
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_054983.json b/conversations/conv_054983.json
deleted file mode 100644
index e949a0bf8f9d2ec166ad9a02ef5c2c57634e3959..0000000000000000000000000000000000000000
--- a/conversations/conv_054983.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3728",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "3728",
-      "position_frames": 0
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-    {
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_054994.json b/conversations/conv_054994.json
deleted file mode 100644
index f981b930db4430b7c22ddbd9896100c7fb6b7359..0000000000000000000000000000000000000000
--- a/conversations/conv_054994.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "1246",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_054998.json b/conversations/conv_054998.json
deleted file mode 100644
index f749ffde300e03553ee2e897eb9d86740d20d4ba..0000000000000000000000000000000000000000
--- a/conversations/conv_054998.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_055002.json b/conversations/conv_055002.json
deleted file mode 100644
index c501507aae82dbafa79e7bafa2a05f1d9b023858..0000000000000000000000000000000000000000
--- a/conversations/conv_055002.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_055014.json b/conversations/conv_055014.json
deleted file mode 100644
index a85b534bcb0d394005afb677fd59afaca58c8660..0000000000000000000000000000000000000000
--- a/conversations/conv_055014.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.5,
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-      "utterance_id": "7713-106738",
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-      "utterance_id": "4899-32637",
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\ No newline at end of file
diff --git a/conversations/conv_055015.json b/conversations/conv_055015.json
deleted file mode 100644
index 64c9dee7e5ac60c976548379bf3ec2c98bc2e2ba..0000000000000000000000000000000000000000
--- a/conversations/conv_055015.json
+++ /dev/null
@@ -1,172 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "utterance_id": "1578-140045",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1578-140045.flac |",
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-    {
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_2.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1578/laugh/0058.wav",
-      "duration": 1.4,
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-      "duration": 1.64,
-      "start_time": 8.635605968058401,
-      "speaker_id": "1578"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1633/laugh/0103.wav",
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-      "start_time": 18.4122055305884,
-      "speaker_id": "1633"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3009/laugh/0077.wav",
-      "duration": 0.7755288193519042,
-      "start_time": 27.118955969559032,
-      "speaker_id": "3009"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1633/laugh/0025.wav",
-      "duration": 1.012950012687062,
-      "start_time": 27.84535382870961,
-      "speaker_id": "1633"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055018.json b/conversations/conv_055018.json
deleted file mode 100644
index af7cde4cbedac03f11bf35a8ccdd63db13886dc2..0000000000000000000000000000000000000000
--- a/conversations/conv_055018.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "4590-18005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18005.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.214735569044668,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3792-176660.flac |",
-      "real_speaker_id": "3792",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.315699001045001,
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-      "overlap": false,
-      "utterance_id": "4590-18006",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18006.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.361860609006094,
-      "end_time": 22.352716574307298,
-      "duration": 3.9908559653012032,
-      "start_frame": 293789,
-      "duration_frames": 63853,
-      "overlap": false,
-      "utterance_id": "4427-41933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-41933.flac |",
-      "real_speaker_id": "4427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.018670182361575,
-      "end_time": 28.432511603974962,
-      "duration": 5.4138414216133866,
-      "start_frame": 368298,
-      "duration_frames": 86621,
-      "overlap": false,
-      "utterance_id": "4590-18005",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4590-18005.flac |",
-      "real_speaker_id": "4590",
-      "position_frames": 92189
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.568324153199757,
-      "end_time": 32.0,
-      "duration": 3.4316758468002426,
-      "start_frame": 457093,
-      "duration_frames": 54906,
-      "overlap": false,
-      "utterance_id": "4427-41933",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-41933.flac |",
-      "real_speaker_id": "4427",
-      "position_frames": 63853
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/239639.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4590/laugh/0137.wav",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/4590/laugh/0059.wav",
-      "duration": 1.08,
-      "start_time": 28.574528666958127,
-      "speaker_id": "4590"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055022.json b/conversations/conv_055022.json
deleted file mode 100644
index c5d3efed2c52121fcd0fdd3884c624c49b970fac..0000000000000000000000000000000000000000
--- a/conversations/conv_055022.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6300-39661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 0
-    },
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-133227.flac |",
-      "real_speaker_id": "224",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "6300-39661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39661.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 69882
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.52455573077365,
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-      "duration_frames": 108360,
-      "overlap": false,
-      "utterance_id": "1230-139216",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1230-139216.flac |",
-      "real_speaker_id": "1230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.049558115979057,
-      "end_time": 29.528491079592428,
-      "duration": 4.478932963613369,
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-      "overlap": false,
-      "utterance_id": "224-129790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/224-129790.flac |",
-      "real_speaker_id": "224",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.815899568348737,
-      "end_time": 32.0,
-      "duration": 2.184100431651263,
-      "start_frame": 477054,
-      "duration_frames": 34945,
-      "overlap": false,
-      "utterance_id": "6300-39660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6300-39660.flac |",
-      "real_speaker_id": "6300",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/47000.wav",
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-    {
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6300/laugh/0087.wav",
-      "duration": 1.24,
-      "start_time": 28.323874833001902,
-      "speaker_id": "6300"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055029.json b/conversations/conv_055029.json
deleted file mode 100644
index 28b7a3056d97c9fe03c5f76d669428527d88fb6b..0000000000000000000000000000000000000000
--- a/conversations/conv_055029.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.472709599647892,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "1226-141279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141279.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.2872042532796115,
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-      "duration": 3.286121934735876,
-      "start_frame": 116595,
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-      "overlap": false,
-      "utterance_id": "1693-142302",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.435637703552134,
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-      "duration_frames": 49430,
-      "overlap": false,
-      "utterance_id": "1226-141268",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141268.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.7736666193603,
-      "end_time": 19.65869595707163,
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-      "overlap": false,
-      "utterance_id": "7832-114468",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7832-114468.flac |",
-      "real_speaker_id": "7832",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.15592858985095,
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-      "utterance_id": "1226-141270",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1226-141270.flac |",
-      "real_speaker_id": "1226",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1693-142302.flac |",
-      "real_speaker_id": "1693",
-      "position_frames": 52577
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.99631060284471,
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-      "duration": 0.47639899680318365,
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-      "overlap": true,
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-  ],
-  "background_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.84,
-      "start_time": 30.16,
-      "speaker_id": "1693"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055034.json b/conversations/conv_055034.json
deleted file mode 100644
index 05666d5ddb9394e4a967c469f9962cbb648a7e21..0000000000000000000000000000000000000000
--- a/conversations/conv_055034.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.97240925540029,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 3.4290747502091325,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "708-129393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 3.8783183188741326,
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-      "real_speaker_id": "7245",
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "708-129393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/708-129393.flac |",
-      "real_speaker_id": "708",
-      "position_frames": 54865
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7245-104890.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_055038.json b/conversations/conv_055038.json
deleted file mode 100644
index e7f29503194cb2bebeb6159f2d4a59cbc0576ba9..0000000000000000000000000000000000000000
--- a/conversations/conv_055038.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.2770449755447,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6895-92806",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-92806.flac |",
-      "real_speaker_id": "6895",
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-      "utterance_id": "6895-96175",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2002-139469.flac |",
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-      "utterance_id": "1116-132851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1116-132851.flac |",
-      "real_speaker_id": "1116",
-      "position_frames": 0
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-      "speaker_id": 0,
-      "start_time": 29.804236192060337,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6895-96175.flac |",
-      "real_speaker_id": "6895",
-      "position_frames": 65786
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-  "background_events": [
-    {
-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_055042.json b/conversations/conv_055042.json
deleted file mode 100644
index 7cc84f3f0d73d9bbefe7da39bcea5d5a4dcdca31..0000000000000000000000000000000000000000
--- a/conversations/conv_055042.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6993-83606.flac |",
-      "real_speaker_id": "6993",
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-      "real_speaker_id": "6993",
-      "position_frames": 154851
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-  "foreground_events": [
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-      "speaker_id": "6993"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055043.json b/conversations/conv_055043.json
deleted file mode 100644
index b72bbaa997a7d1e1d6b4cc537135e1dc6e152e2a..0000000000000000000000000000000000000000
--- a/conversations/conv_055043.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7538-100045.flac |",
-      "real_speaker_id": "7538",
-      "position_frames": 0
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-      "position_frames": 92787
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-    {
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-      "real_speaker_id": "7833",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_055052.json b/conversations/conv_055052.json
deleted file mode 100644
index 5c5d6a369cbeff4d735b2ea58968d09768b0be4c..0000000000000000000000000000000000000000
--- a/conversations/conv_055052.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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\ No newline at end of file
diff --git a/conversations/conv_055055.json b/conversations/conv_055055.json
deleted file mode 100644
index 5d4d30d114b4d645431cb683830a96c7a3895da0..0000000000000000000000000000000000000000
--- a/conversations/conv_055055.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.04984532107052,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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\ No newline at end of file
diff --git a/conversations/conv_055059.json b/conversations/conv_055059.json
deleted file mode 100644
index e320ab4a902aa202c874fbc8d094aabcc53ac6be..0000000000000000000000000000000000000000
--- a/conversations/conv_055059.json
+++ /dev/null
@@ -1,180 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_055063.json b/conversations/conv_055063.json
deleted file mode 100644
index 6741e95478fc502e9601607efbffdda10d1342e7..0000000000000000000000000000000000000000
--- a/conversations/conv_055063.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/953/laugh/0072.wav",
-      "duration": 1.12,
-      "start_time": 15.458598929721932,
-      "speaker_id": "953"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/953/cough/0041.wav",
-      "duration": 0.8816140802280588,
-      "start_time": 27.90210350776483,
-      "speaker_id": "953"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055068.json b/conversations/conv_055068.json
deleted file mode 100644
index 827a481a0e46c97870c038aeaad5f1a41200ac40..0000000000000000000000000000000000000000
--- a/conversations/conv_055068.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.406358266210287,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.575667304571125,
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-      "duration_frames": 105210,
-      "overlap": false,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.386333618357146,
-      "end_time": 12.128343920917082,
-      "duration": 4.742010302559935,
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-      "overlap": false,
-      "utterance_id": "6233-61741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61741.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.577228082864604,
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-      "duration": 6.304875087601322,
-      "start_frame": 201235,
-      "duration_frames": 100878,
-      "overlap": false,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 105210
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.24322083022232,
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-      "duration": 5.807814999863109,
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-      "duration_frames": 92925,
-      "overlap": true,
-      "utterance_id": "6233-61743",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6233-61743.flac |",
-      "real_speaker_id": "6233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.261042129682515,
-      "end_time": 30.856197924809052,
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-      "overlap": false,
-      "utterance_id": "7436-97462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7436-97462.flac |",
-      "real_speaker_id": "7436",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.70158234089485,
-      "end_time": 31.406358266210287,
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-      "start_frame": 491225,
-      "duration_frames": 11276,
-      "overlap": true,
-      "utterance_id": "5005-21379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5005-21379.flac |",
-      "real_speaker_id": "5005",
-      "position_frames": 206088
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/589_1.wav",
-      "duration": 10.690294784580498,
-      "start_time": 11.265747499255614
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59326.wav",
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/232915.wav",
-      "duration": 1.8957929867707422,
-      "start_time": 24.09653733476499
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-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_055075.json b/conversations/conv_055075.json
deleted file mode 100644
index 49bd9f0c6158e80a54c3f95eb5cf992dbfea30b3..0000000000000000000000000000000000000000
--- a/conversations/conv_055075.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.145916773055433,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.126431257556209,
-      "end_time": 12.606422781854343,
-      "duration": 6.479991524298134,
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-      "overlap": false,
-      "utterance_id": "2581-157857",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-157857.flac |",
-      "real_speaker_id": "2581",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 13.560699988575497,
-      "end_time": 19.116170516337174,
-      "duration": 5.555470527761678,
-      "start_frame": 216971,
-      "duration_frames": 88887,
-      "overlap": false,
-      "utterance_id": "6685-70977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6685-70977.flac |",
-      "real_speaker_id": "6685",
-      "position_frames": 91972
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.949728833279554,
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-      "duration": 5.000548348512618,
-      "start_frame": 319195,
-      "duration_frames": 80008,
-      "overlap": false,
-      "utterance_id": "886-123274",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/886-123274.flac |",
-      "real_speaker_id": "886",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 25.47268962652791,
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-      "utterance_id": "2581-155520",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2581-155520.flac |",
-      "real_speaker_id": "2581",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-  "foreground_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/340831.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6685/laugh/0022.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.0980929166091213,
-      "start_time": 0,
-      "speaker_id": "6685"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055079.json b/conversations/conv_055079.json
deleted file mode 100644
index d5d523cb7fd1b9dc8c1307f600d3992837e61253..0000000000000000000000000000000000000000
--- a/conversations/conv_055079.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5280-204996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5280-204996.flac |",
-      "real_speaker_id": "5280",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "834-130870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130870.flac |",
-      "real_speaker_id": "834",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "1421-8539",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1421-8539.flac |",
-      "real_speaker_id": "1421",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.108530343270306,
-      "end_time": 20.020932403422975,
-      "duration": 4.912402060152671,
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-      "duration_frames": 78598,
-      "overlap": false,
-      "utterance_id": "834-130871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130871.flac |",
-      "real_speaker_id": "834",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.57843917599572,
-      "end_time": 26.92479580207423,
-      "duration": 6.346356626078509,
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-      "duration_frames": 101541,
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-      "utterance_id": "5280-204996",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5280-204996.flac |",
-      "real_speaker_id": "5280",
-      "position_frames": 66108
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.21969743251252,
-      "end_time": 32.0,
-      "duration": 4.780302567487482,
-      "start_frame": 435515,
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-      "overlap": false,
-      "utterance_id": "834-130870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130870.flac |",
-      "real_speaker_id": "834",
-      "position_frames": 64016
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_3.wav",
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-      "start_time": 9.219363127430771
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/834/laugh/0096.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/834/laugh/0046.wav",
-      "duration": 0.8560447010282314,
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-      "speaker_id": "834"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055080.json b/conversations/conv_055080.json
deleted file mode 100644
index 871a8adfcc542917be6bdddc824dfde745760f0a..0000000000000000000000000000000000000000
--- a/conversations/conv_055080.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7802-104398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104398.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "utterance_id": "7802-104394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7802-104394.flac |",
-      "real_speaker_id": "7802",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 8.022736904999155,
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-      "utterance_id": "839-130898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/839-130898.flac |",
-      "real_speaker_id": "839",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.671876747833156,
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-      "utterance_id": "5104-33407",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33407.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.785972515633393,
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-      "real_speaker_id": "7802",
-      "position_frames": 62958
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "duration_frames": 82451,
-      "overlap": false,
-      "utterance_id": "5104-33406",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5104-33406.flac |",
-      "real_speaker_id": "5104",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.771815095087327,
-      "end_time": 32.0,
-      "duration": 2.2281849049126734,
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-      "utterance_id": "839-130898",
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
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-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055087.json b/conversations/conv_055087.json
deleted file mode 100644
index e9cbca8df81d564ccdc8100c7aad9b283a0b147c..0000000000000000000000000000000000000000
--- a/conversations/conv_055087.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.026465520045584,
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-      "real_speaker_id": "1455",
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-      "real_speaker_id": "625",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2674-155968.flac |",
-      "real_speaker_id": "2674",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 50005
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
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-      "duration": 1.4,
-      "start_time": 27.463180727672935,
-      "speaker_id": "625"
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-    {
-      "event_class": "cough",
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-      "duration": 1.2,
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-      "speaker_id": "625"
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-      "event_class": "laugh",
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-      "duration": 1.7,
-      "start_time": 30.3,
-      "speaker_id": "1455"
-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_055091.json b/conversations/conv_055091.json
deleted file mode 100644
index 3e6be1140ddc9388962cd51bb24e6297a08ec624..0000000000000000000000000000000000000000
--- a/conversations/conv_055091.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.0942509610031,
-  "num_speakers": 3,
-  "overlap_rate": 0.2,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
-      "start_time": 7.009408897054886,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/441-128988.flac |",
-      "real_speaker_id": "441",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132112.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
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-      "utterance_id": "5569-40540",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
-      "real_speaker_id": "5569",
-      "position_frames": 102914
-    },
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5569-40540.flac |",
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-  "foreground_events": [
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-      "event_class": "Cat",
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\ No newline at end of file
diff --git a/conversations/conv_055096.json b/conversations/conv_055096.json
deleted file mode 100644
index d0991547392a75606aa6ae5258b99fa016f05277..0000000000000000000000000000000000000000
--- a/conversations/conv_055096.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "373",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1304.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 99894
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "373-130977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/373-130977.flac |",
-      "real_speaker_id": "373",
-      "position_frames": 193988
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.31391685446894,
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-      "utterance_id": "1505-1303",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1505-1303.flac |",
-      "real_speaker_id": "1505",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-    {
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-      "duration": 1.12,
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-      "speaker_id": "1505"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055106.json b/conversations/conv_055106.json
deleted file mode 100644
index fe168f9e064972979f0ade4050f34bc4c576c70c..0000000000000000000000000000000000000000
--- a/conversations/conv_055106.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "458-126294",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126294.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.976063486733239,
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-      "utterance_id": "6038-56778",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "458-126290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126290.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "duration": 6.014952763207308,
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-      "overlap": false,
-      "utterance_id": "6038-56777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56777.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.4022325366006,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6038-56778.flac |",
-      "real_speaker_id": "6038",
-      "position_frames": 58294
-    },
-    {
-      "segment_id": "seg0005",
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-      "overlap": false,
-      "utterance_id": "458-126305",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/458-126305.flac |",
-      "real_speaker_id": "458",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-    {
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-    {
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-      "duration": 0.9768179042688627,
-      "start_time": 28.30380180453412,
-      "speaker_id": "458"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055107.json b/conversations/conv_055107.json
deleted file mode 100644
index 48b1dea89272849647d993ac82cdf6485e4bea28..0000000000000000000000000000000000000000
--- a/conversations/conv_055107.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.608257247873677,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.358630864532962,
-      "duration": 6.358630864532962,
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\ No newline at end of file
diff --git a/conversations/conv_055110.json b/conversations/conv_055110.json
deleted file mode 100644
index 2f5f3c01bbd7710b886278a1d391624008f15ae6..0000000000000000000000000000000000000000
--- a/conversations/conv_055110.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.37448009479631,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "2137-131748",
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-      "real_speaker_id": "2137",
-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_055117.json b/conversations/conv_055117.json
deleted file mode 100644
index 0e4ada755cb527006f0a7c4f1de3202fc7a1ced7..0000000000000000000000000000000000000000
--- a/conversations/conv_055117.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_055126.json b/conversations/conv_055126.json
deleted file mode 100644
index 768288577bfffa10d5625009d82a400260e02866..0000000000000000000000000000000000000000
--- a/conversations/conv_055126.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3285-121401.flac |",
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-    {
-      "segment_id": "seg0005",
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\ No newline at end of file
diff --git a/conversations/conv_055130.json b/conversations/conv_055130.json
deleted file mode 100644
index 98f22f870840f73c6d4acee266729c95fc0ae4d6..0000000000000000000000000000000000000000
--- a/conversations/conv_055130.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "3394-184333",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-184333.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
-      "real_speaker_id": "1494",
-      "position_frames": 0
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-      "utterance_id": "3699-19401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-19401.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.504593928845399,
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-      "utterance_id": "1494-138315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1494-138315.flac |",
-      "real_speaker_id": "1494",
-      "position_frames": 66401
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "3699-175950",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3699-175950.flac |",
-      "real_speaker_id": "3699",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.988196711387225,
-      "end_time": 32.0,
-      "duration": 6.011803288612775,
-      "start_frame": 415811,
-      "duration_frames": 96188,
-      "overlap": false,
-      "utterance_id": "3394-7597",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3394-7597.flac |",
-      "real_speaker_id": "3394",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1494/laugh/0023.wav",
-      "duration": 1.56,
-      "start_time": 5.671404647049542,
-      "speaker_id": "1494"
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3699/laugh/0023.wav",
-      "duration": 0.8646477711258086,
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-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3699/laugh/0101.wav",
-      "duration": 1.28,
-      "start_time": 19.5652144050216,
-      "speaker_id": "3699"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3394/cough/0115.wav",
-      "duration": 0.5303673090764538,
-      "start_time": 25.419236328816236,
-      "speaker_id": "3394"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055147.json b/conversations/conv_055147.json
deleted file mode 100644
index 696bd5c25e06d914376e38661c45e72faa5ac902..0000000000000000000000000000000000000000
--- a/conversations/conv_055147.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.290025961484157,
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-      "start_frame": 0,
-      "duration_frames": 52640,
-      "overlap": false,
-      "utterance_id": "6454-120342",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-120342.flac |",
-      "real_speaker_id": "6454",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.182286346010848,
-      "end_time": 10.058442599608846,
-      "duration": 5.8761562535979985,
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-      "utterance_id": "3807-4923",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4923.flac |",
-      "real_speaker_id": "3807",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3807-4923.flac |",
-      "real_speaker_id": "3807",
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-    },
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-      "real_speaker_id": "6454",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 18.972316634337172,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-130138.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.86670343761256,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6454-120342.flac |",
-      "real_speaker_id": "6454",
-      "position_frames": 52640
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 30.80833666941559,
-      "end_time": 32.0,
-      "duration": 1.1916633305844115,
-      "start_frame": 492933,
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-      "overlap": false,
-      "utterance_id": "2606-130138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2606-130138.flac |",
-      "real_speaker_id": "2606",
-      "position_frames": 73059
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "speaker_id": "2606"
-    }
-  ]
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\ No newline at end of file
diff --git a/conversations/conv_055151.json b/conversations/conv_055151.json
deleted file mode 100644
index 3e17a0d5e5c3fcf67fb67425f11f8d4dd543623f..0000000000000000000000000000000000000000
--- a/conversations/conv_055151.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.136248895008166,
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-      "utterance_id": "2496-156087",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156087.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "duration": 4.974402757894893,
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-      "duration_frames": 79590,
-      "overlap": false,
-      "utterance_id": "2496-156083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2496-156083.flac |",
-      "real_speaker_id": "2496",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.840471348273521,
-      "end_time": 21.201801915251338,
-      "duration": 6.361330566977818,
-      "start_frame": 237447,
-      "duration_frames": 101781,
-      "overlap": true,
-      "utterance_id": "90-130566",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-130566.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.587620224440172,
-      "end_time": 27.434082073998056,
-      "duration": 4.8464618495578815,
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-      "duration_frames": 77543,
-      "overlap": false,
-      "utterance_id": "7263-86687",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7263-86687.flac |",
-      "real_speaker_id": "7263",
-      "position_frames": 60112
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.583729227393356,
-      "end_time": 32.0,
-      "duration": 4.416270772606644,
-      "start_frame": 441339,
-      "duration_frames": 70660,
-      "overlap": false,
-      "utterance_id": "90-130566",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-130566.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 101781
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_6.wav",
-      "duration": 0.5768027210884353,
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 14.157350351913843,
-      "speaker_id": "2496"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/90/laugh/0065.wav",
-      "duration": 1.2591168072874903,
-      "start_time": 30.74088319271251,
-      "speaker_id": "90"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055167.json b/conversations/conv_055167.json
deleted file mode 100644
index 2cb3dd19028dd325b3adc69c6d3454886dd25359..0000000000000000000000000000000000000000
--- a/conversations/conv_055167.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.94384652345974,
-      "duration": 4.94384652345974,
-      "start_frame": 0,
-      "duration_frames": 79101,
-      "overlap": false,
-      "utterance_id": "243-12956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-12956.flac |",
-      "real_speaker_id": "243",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.525759134684408,
-      "end_time": 9.891122730476974,
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-      "duration_frames": 69845,
-      "overlap": false,
-      "utterance_id": "243-160870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-160870.flac |",
-      "real_speaker_id": "243",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.871769772121025,
-      "end_time": 16.817399184516034,
-      "duration": 5.945629412395008,
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-      "duration_frames": 95130,
-      "overlap": false,
-      "utterance_id": "208-126851",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126851.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.797967036538044,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/243-12956.flac |",
-      "real_speaker_id": "243",
-      "position_frames": 79101
-    },
-    {
-      "segment_id": "seg0004",
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-      "start_time": 22.388340400648666,
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-      "utterance_id": "208-126600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/208-126600.flac |",
-      "real_speaker_id": "208",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.863814383791514,
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-      "duration": 3.1361856162084862,
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-      "duration_frames": 50178,
-      "overlap": false,
-      "utterance_id": "6272-70168",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6272-70168.flac |",
-      "real_speaker_id": "6272",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/243/laugh/0014.wav",
-      "duration": 1.08,
-      "start_time": 18.8630356571882,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/208/laugh/0053.wav",
-      "duration": 0.76,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6272/laugh/0027.wav",
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-      "speaker_id": "6272"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055171.json b/conversations/conv_055171.json
deleted file mode 100644
index 44cb80c3c11bdba6f1eb54722e1ebc1dcdba4430..0000000000000000000000000000000000000000
--- a/conversations/conv_055171.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.561342554612945,
-      "duration": 4.561342554612945,
-      "start_frame": 0,
-      "duration_frames": 72981,
-      "overlap": false,
-      "utterance_id": "5448-19209",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19209.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.033159150768964,
-      "end_time": 8.438516646475744,
-      "duration": 3.4053574957067796,
-      "start_frame": 80530,
-      "duration_frames": 54485,
-      "overlap": false,
-      "utterance_id": "6209-34599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34599.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.702768492161848,
-      "end_time": 14.534383070739285,
-      "duration": 5.831614578577437,
-      "start_frame": 139244,
-      "duration_frames": 93305,
-      "overlap": false,
-      "utterance_id": "5448-19208",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5448-19208.flac |",
-      "real_speaker_id": "5448",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.3103249288273,
-      "end_time": 19.211615964715627,
-      "duration": 3.9012910358883275,
-      "start_frame": 244965,
-      "duration_frames": 62420,
-      "overlap": false,
-      "utterance_id": "6209-34599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34599.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 54485
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.441163313690538,
-      "end_time": 23.34978828270523,
-      "duration": 3.9086249690146913,
-      "start_frame": 311058,
-      "duration_frames": 62537,
-      "overlap": false,
-      "utterance_id": "6209-34601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34601.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 23.828112661264406,
-      "end_time": 28.150593953874814,
-      "duration": 4.322481292610409,
-      "start_frame": 381249,
-      "duration_frames": 69159,
-      "overlap": true,
-      "utterance_id": "6359-64713",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6359-64713.flac |",
-      "real_speaker_id": "6359",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.740199394158847,
-      "end_time": 32.0,
-      "duration": 2.2598006058411535,
-      "start_frame": 475843,
-      "duration_frames": 36156,
-      "overlap": false,
-      "utterance_id": "6209-34600",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6209-34600.flac |",
-      "real_speaker_id": "6209",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
-      "duration": 4.7008133726554835,
-      "start_time": 7.570184799681463
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-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_1.wav",
-      "duration": 2.236848072562358,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6209/laugh/0080.wav",
-      "duration": 1.6,
-      "start_time": 8.457598087093158,
-      "speaker_id": "6209"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6209/laugh/0080.wav",
-      "duration": 0.8468070394051692,
-      "start_time": 19.372451037663808,
-      "speaker_id": "6209"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/6209/laugh/0073.wav",
-      "duration": 0.724424381289503,
-      "start_time": 31.275575618710498,
-      "speaker_id": "6209"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055183.json b/conversations/conv_055183.json
deleted file mode 100644
index 35cc38e255aad1acdaff83b21864a53e4863c0aa..0000000000000000000000000000000000000000
--- a/conversations/conv_055183.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.767289176777133,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.170124149367352,
-      "duration": 4.170124149367352,
-      "start_frame": 0,
-      "duration_frames": 66721,
-      "overlap": false,
-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.491993032660962,
-      "end_time": 10.285356719771048,
-      "duration": 5.793363687110086,
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-      "duration_frames": 92693,
-      "overlap": false,
-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 66721
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.114879416409657,
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-      "duration": 6.807401689735172,
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-      "overlap": false,
-      "utterance_id": "8565-290398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290398.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.16262148632189,
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-      "duration_frames": 53031,
-      "overlap": false,
-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.400266521989497,
-      "end_time": 27.178611799314023,
-      "duration": 3.778345277324526,
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-      "duration_frames": 60453,
-      "overlap": false,
-      "utterance_id": "8565-290398",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8565-290398.flac |",
-      "real_speaker_id": "8565",
-      "position_frames": 108918
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.11997611376244,
-      "end_time": 31.767289176777133,
-      "duration": 3.6473130630146926,
-      "start_frame": 449919,
-      "duration_frames": 58357,
-      "overlap": true,
-      "utterance_id": "1595-132753",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1595-132753.flac |",
-      "real_speaker_id": "1595",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/239565.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.513697548646565,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/laugh/0061.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/cough/0110.wav",
-      "duration": 0.7464398556350789,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5970/laugh/0075.wav",
-      "duration": 0.8621944235145502,
-      "start_time": 18.15262211228885,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055184.json b/conversations/conv_055184.json
deleted file mode 100644
index f42cd9dc79d1d39a6ef9e69f35c88b60fb33a23e..0000000000000000000000000000000000000000
--- a/conversations/conv_055184.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "start_frame": 0,
-      "duration_frames": 55285,
-      "overlap": false,
-      "utterance_id": "6506-10073",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6506-10073.flac |",
-      "real_speaker_id": "6506",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.333418981667361,
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-      "utterance_id": "340-124368",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "6153-62535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-62535.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 59580
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "6153-59414",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6153-59414.flac |",
-      "real_speaker_id": "6153",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/340-124368.flac |",
-      "real_speaker_id": "340",
-      "position_frames": 163467
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/340/laugh/0098.wav",
-      "duration": 1.4,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/340/laugh/0036.wav",
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-      "start_time": 31.34131051402833,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055188.json b/conversations/conv_055188.json
deleted file mode 100644
index c3334866ffba25a2467c859e7407b770cdc5e161..0000000000000000000000000000000000000000
--- a/conversations/conv_055188.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "duration": 4.092119045258182,
-      "start_frame": 0,
-      "duration_frames": 65473,
-      "overlap": false,
-      "utterance_id": "7240-108066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7240-108066.flac |",
-      "real_speaker_id": "7240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "5918-46890",
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-      "real_speaker_id": "5918",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5278-40890.flac |",
-      "real_speaker_id": "5278",
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-    {
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-    {
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-    {
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5278/cough/0110.wav",
-      "duration": 0.7539984776830395,
-      "start_time": 21.613754043939412,
-      "speaker_id": "5278"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7240/laugh/0043.wav",
-      "duration": 1.48,
-      "start_time": 25.626866644171624,
-      "speaker_id": "7240"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7240/cough/0023.wav",
-      "duration": 0.5279665336116603,
-      "start_time": 31.47203346638834,
-      "speaker_id": "7240"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055192.json b/conversations/conv_055192.json
deleted file mode 100644
index aebcd6791ce297721c9ef2a89c07335fab082386..0000000000000000000000000000000000000000
--- a/conversations/conv_055192.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.86805815095704,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.2273544348218666,
-      "duration": 3.2273544348218666,
-      "start_frame": 0,
-      "duration_frames": 51637,
-      "overlap": false,
-      "utterance_id": "2276-149909",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2276-149909.flac |",
-      "real_speaker_id": "2276",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 3.2175020941547094,
-      "end_time": 8.576317514018115,
-      "duration": 5.358815419863406,
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-      "utterance_id": "2532-154838",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-154838.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.632443096155553,
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-      "overlap": false,
-      "utterance_id": "2660-154321",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-154321.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 13.560655279419048,
-      "end_time": 16.894412119891637,
-      "duration": 3.3337568404725895,
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-      "duration_frames": 53340,
-      "overlap": false,
-      "utterance_id": "2660-173260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-173260.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 17.848504651182626,
-      "end_time": 22.890302879144247,
-      "duration": 5.041798227961622,
-      "start_frame": 285576,
-      "duration_frames": 80668,
-      "overlap": false,
-      "utterance_id": "2532-154838",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2532-154838.flac |",
-      "real_speaker_id": "2532",
-      "position_frames": 85741
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.269858528073318,
-      "end_time": 30.86805815095704,
-      "duration": 6.5981996228837225,
-      "start_frame": 388317,
-      "duration_frames": 105571,
-      "overlap": false,
-      "utterance_id": "2660-173260",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2660-173260.flac |",
-      "real_speaker_id": "2660",
-      "position_frames": 53340
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/132472.wav",
-      "duration": 11.26843716560601,
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-  "foreground_events": [
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_0.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "start_time": 1.9655416957758005,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2532/laugh/0016.wav",
-      "duration": 1.04,
-      "start_time": 20.83713210948432,
-      "speaker_id": "2532"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2660/laugh/0004.wav",
-      "duration": 1.4,
-      "start_time": 22.787911902650226,
-      "speaker_id": "2660"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2660/cough/0042.wav",
-      "duration": 1.18,
-      "start_time": 22.89065417111475,
-      "speaker_id": "2660"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055195.json b/conversations/conv_055195.json
deleted file mode 100644
index 5d42fc34fae127cf8c867c1b39e1e73cbf011536..0000000000000000000000000000000000000000
--- a/conversations/conv_055195.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.73048375458733,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "7688-105390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-105390.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.821106998891616,
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-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 12.402451069646022,
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-      "overlap": false,
-      "utterance_id": "7688-109656",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7688-109656.flac |",
-      "real_speaker_id": "7688",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.289417171329927,
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-      "duration": 3.9454272467708495,
-      "start_frame": 276630,
-      "duration_frames": 63126,
-      "overlap": false,
-      "utterance_id": "8536-244441",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8536-244441.flac |",
-      "real_speaker_id": "8536",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.689180194353618,
-      "end_time": 26.596134263552337,
-      "duration": 4.906954069198717,
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-      "duration_frames": 78511,
-      "overlap": false,
-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 82724
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.708572796921015,
-      "end_time": 31.73048375458733,
-      "duration": 5.021910957666314,
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-      "duration_frames": 80350,
-      "overlap": true,
-      "utterance_id": "2334-150915",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150915.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "2334"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7688/laugh/0108.wav",
-      "duration": 1.2335250797256356,
-      "start_time": 11.019312022697203,
-      "speaker_id": "7688"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055203.json b/conversations/conv_055203.json
deleted file mode 100644
index 3791d106be5659302152b720146b104b5c78138a..0000000000000000000000000000000000000000
--- a/conversations/conv_055203.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1250-135782",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135782.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.2086958678760675,
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-      "start_frame": 99339,
-      "duration_frames": 81338,
-      "overlap": false,
-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.108508486192813,
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-      "duration_frames": 105610,
-      "overlap": false,
-      "utterance_id": "5266-41151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 19.446428729309567,
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-      "overlap": true,
-      "utterance_id": "90-121085",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/90-121085.flac |",
-      "real_speaker_id": "90",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 26.07709853402172,
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-      "duration_frames": 61851,
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-      "utterance_id": "5266-41151",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 105610
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "start_frame": 485901,
-      "duration_frames": 26098,
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-      "utterance_id": "1250-135777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 81338
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/271460.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
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-    {
-      "event_class": "Cat",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1250/laugh/0045.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5266/laugh/0078.wav",
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-      "start_time": 17.773728387319565,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5266/cough/0072.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5266/laugh/0082.wav",
-      "duration": 1.36,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/5266/cough/0037.wav",
-      "duration": 0.564246514032848,
-      "start_time": 25.4097448445968,
-      "speaker_id": "5266"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055204.json b/conversations/conv_055204.json
deleted file mode 100644
index d6acf72c76618924283944264b36ddea4a949a80..0000000000000000000000000000000000000000
--- a/conversations/conv_055204.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.261444213370265,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6609-111359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6609-111359.flac |",
-      "real_speaker_id": "6609",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "976-131541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/976-131541.flac |",
-      "real_speaker_id": "976",
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-    {
-      "segment_id": "seg0002",
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-      "duration_frames": 91411,
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-      "utterance_id": "976-131541",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/976-131541.flac |",
-      "real_speaker_id": "976",
-      "position_frames": 87480
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "utterance_id": "976-172189",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/976-172189.flac |",
-      "real_speaker_id": "976",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
-      "duration": 0.8380952380952381,
-      "start_time": 1.126449925859077
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6609/laugh/0011.wav",
-      "duration": 0.765847890389779,
-      "start_time": 3.87480450685188,
-      "speaker_id": "6609"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6609/cough/0120.wav",
-      "duration": 0.7630328043352137,
-      "start_time": 21.327640311865817,
-      "speaker_id": "6609"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055212.json b/conversations/conv_055212.json
deleted file mode 100644
index 135fc492293d4f22bb41e76db8e0a16685c5051e..0000000000000000000000000000000000000000
--- a/conversations/conv_055212.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.64805031078458,
-      "duration": 6.64805031078458,
-      "start_frame": 0,
-      "duration_frames": 106368,
-      "overlap": false,
-      "utterance_id": "1313-135020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135020.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.283108509505485,
-      "end_time": 13.529100061737413,
-      "duration": 6.245991552231929,
-      "start_frame": 116529,
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-      "overlap": false,
-      "utterance_id": "2297-174934",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2297-174934.flac |",
-      "real_speaker_id": "2297",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 14.116378000163749,
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-      "duration_frames": 69505,
-      "overlap": false,
-      "utterance_id": "6752-74796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74796.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.68053622858114,
-      "end_time": 24.062298245211952,
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-      "duration_frames": 86108,
-      "overlap": false,
-      "utterance_id": "1313-136054",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-136054.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.43417295318978,
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-      "utterance_id": "6752-74796",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6752-74796.flac |",
-      "real_speaker_id": "6752",
-      "position_frames": 69505
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.365166996630215,
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-      "duration": 2.634833003369785,
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-      "duration_frames": 42157,
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-      "utterance_id": "1313-135020",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1313-135020.flac |",
-      "real_speaker_id": "1313",
-      "position_frames": 106368
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/235566.wav",
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-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/59327.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1313/cough/0056.wav",
-      "duration": 1.12,
-      "start_time": 6.838111577844306,
-      "speaker_id": "1313"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1313/laugh/0073.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1313/cough/0027.wav",
-      "duration": 0.92,
-      "start_time": 31.08,
-      "speaker_id": "1313"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055215.json b/conversations/conv_055215.json
deleted file mode 100644
index a9781c5508d126bafbfbb3b8a72fb28f23425f9b..0000000000000000000000000000000000000000
--- a/conversations/conv_055215.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7945-112012.flac |",
-      "real_speaker_id": "7945",
-      "position_frames": 0
-    },
-    {
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-      "utterance_id": "4442-2868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
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-      "start_time": 11.281221048339415,
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-      "overlap": false,
-      "utterance_id": "4442-2868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 74176
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.69952582673222,
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-      "duration_frames": 103953,
-      "overlap": false,
-      "utterance_id": "7945-112011",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7945-112011.flac |",
-      "real_speaker_id": "7945",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.39553627853334,
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-      "utterance_id": "4442-2868",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4442-2868.flac |",
-      "real_speaker_id": "4442",
-      "position_frames": 151474
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "3665-8589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3665-8589.flac |",
-      "real_speaker_id": "3665",
-      "position_frames": 0
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-  ],
-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-  "paralinguistic_events": [
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-      "duration": 1.02,
-      "start_time": 30.84767276667864,
-      "speaker_id": "3665"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055219.json b/conversations/conv_055219.json
deleted file mode 100644
index 11f9d3fbfbfd2898dfbacbcb0e7ab4baed49809b..0000000000000000000000000000000000000000
--- a/conversations/conv_055219.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
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-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "utterance_id": "5304-55856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-55856.flac |",
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-      "position_frames": 0
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-      "utterance_id": "3691-178118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3691-178118.flac |",
-      "real_speaker_id": "3691",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "5304-55856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-55856.flac |",
-      "real_speaker_id": "5304",
-      "position_frames": 90898
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.635929696890297,
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-      "utterance_id": "3259-158083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3259-158083.flac |",
-      "real_speaker_id": "3259",
-      "position_frames": 67886
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "5304-55856",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5304-55856.flac |",
-      "real_speaker_id": "5304",
-      "position_frames": 171293
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_055222.json b/conversations/conv_055222.json
deleted file mode 100644
index e9fb79d243b613a9b2328bf96af07c0538e0f0ac..0000000000000000000000000000000000000000
--- a/conversations/conv_055222.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "3142-160977",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3142-160977.flac |",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "3142-160977",
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-      "utterance_id": "3135-166688",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3135-166688.flac |",
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-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/74723_4.wav",
-      "duration": 0.2651700680272109,
-      "start_time": 26.295661866427906
-    }
-  ],
-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_055223.json b/conversations/conv_055223.json
deleted file mode 100644
index 9493c73351df131b04455e6cad3909a7b31e695c..0000000000000000000000000000000000000000
--- a/conversations/conv_055223.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.3102600842713334,
-      "duration": 5.3102600842713334,
-      "start_frame": 0,
-      "duration_frames": 84964,
-      "overlap": false,
-      "utterance_id": "3647-180300",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-180300.flac |",
-      "real_speaker_id": "3647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.456039481018147,
-      "end_time": 12.011167306964197,
-      "duration": 6.55512782594605,
-      "start_frame": 87296,
-      "duration_frames": 104882,
-      "overlap": false,
-      "utterance_id": "4546-16813",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16813.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.78372173784895,
-      "end_time": 17.65801825105648,
-      "duration": 4.874296513207528,
-      "start_frame": 204539,
-      "duration_frames": 77988,
-      "overlap": false,
-      "utterance_id": "5412-39899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.31581703040906,
-      "end_time": 23.624777350638134,
-      "duration": 5.3089603202290725,
-      "start_frame": 293053,
-      "duration_frames": 84943,
-      "overlap": false,
-      "utterance_id": "4546-16812",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4546-16812.flac |",
-      "real_speaker_id": "4546",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.5754089608944,
-      "end_time": 27.767656065350096,
-      "duration": 3.192247104455695,
-      "start_frame": 393206,
-      "duration_frames": 51075,
-      "overlap": false,
-      "utterance_id": "5412-39899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5412-39899.flac |",
-      "real_speaker_id": "5412",
-      "position_frames": 77988
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.982745296979587,
-      "end_time": 32.0,
-      "duration": 4.017254703020413,
-      "start_frame": 447723,
-      "duration_frames": 64276,
-      "overlap": false,
-      "utterance_id": "3647-180300",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3647-180300.flac |",
-      "real_speaker_id": "3647",
-      "position_frames": 84964
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
-      "duration": 10.67328798185941,
-      "start_time": 0.25510719312744645
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_4.wav",
-      "duration": 0.31639455782312925,
-      "start_time": 23.1708729473384
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_2.wav",
-      "duration": 2.2330385487528344,
-      "start_time": 26.939198177872278
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4546/cough/0140.wav",
-      "duration": 0.7880675165414076,
-      "start_time": 4.640099607339501,
-      "speaker_id": "4546"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5412/laugh/0004.wav",
-      "duration": 1.1061986443664114,
-      "start_time": 17.802421296761693,
-      "speaker_id": "5412"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5412/cough/0055.wav",
-      "duration": 1.16,
-      "start_time": 11.48936465169114,
-      "speaker_id": "5412"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3647/cough/0112.wav",
-      "duration": 0.38017786324600644,
-      "start_time": 27.522248260315813,
-      "speaker_id": "3647"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055235.json b/conversations/conv_055235.json
deleted file mode 100644
index 94922011bec2bab33e1f9e6169e90b900e436734..0000000000000000000000000000000000000000
--- a/conversations/conv_055235.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.210036630760943,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.3891338415452354,
-      "duration": 5.3891338415452354,
-      "start_frame": 0,
-      "duration_frames": 86226,
-      "overlap": false,
-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.997932601918556,
-      "end_time": 10.221816989586543,
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-      "overlap": true,
-      "utterance_id": "27-123349",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-123349.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.516559388197908,
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-      "duration": 4.382678476951635,
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-      "duration_frames": 70122,
-      "overlap": false,
-      "utterance_id": "4015-63729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4015-63729.flac |",
-      "real_speaker_id": "4015",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.130080830172016,
-      "end_time": 22.13128226154347,
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-      "start_frame": 274081,
-      "duration_frames": 80019,
-      "overlap": false,
-      "utterance_id": "4088-158079",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158079.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 86226
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.884002777503735,
-      "end_time": 26.31503507955823,
-      "duration": 3.4310323020544917,
-      "start_frame": 366144,
-      "duration_frames": 54896,
-      "overlap": false,
-      "utterance_id": "4088-158077",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4088-158077.flac |",
-      "real_speaker_id": "4088",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.025090469931797,
-      "end_time": 30.210036630760943,
-      "duration": 4.1849461608291465,
-      "start_frame": 416401,
-      "duration_frames": 66959,
-      "overlap": true,
-      "utterance_id": "27-124992",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/27-124992.flac |",
-      "real_speaker_id": "27",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
-      "duration": 20.507437641723357,
-      "start_time": 7.104280916971757
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
-      "duration": 2.0470748299319728,
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4015/laugh/0115.wav",
-      "duration": 0.932066374811589,
-      "start_time": 16.033835404690596,
-      "speaker_id": "4015"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4088/laugh/0092.wav",
-      "duration": 1.1232753537059832,
-      "start_time": 22.366757660307382,
-      "speaker_id": "4088"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/27/cough/0043.wav",
-      "duration": 0.7846769164062125,
-      "start_time": 25.111748318770122,
-      "speaker_id": "27"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055239.json b/conversations/conv_055239.json
deleted file mode 100644
index 2733ab4b2f8655776fd50f9438dabf2fac451a5c..0000000000000000000000000000000000000000
--- a/conversations/conv_055239.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "duration": 3.5410906308348746,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "102-129232",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.138241347387065,
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-      "overlap": false,
-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.801776594869928,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/102-129232.flac |",
-      "real_speaker_id": "102",
-      "position_frames": 56657
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.709908125830745,
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-      "overlap": false,
-      "utterance_id": "5772-43315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43315.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 19.806477739263137,
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-      "real_speaker_id": "2625",
-      "position_frames": 48149
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.959649791471847,
-      "end_time": 31.13493346202862,
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-      "duration_frames": 82804,
-      "overlap": false,
-      "utterance_id": "5772-43315",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5772-43315.flac |",
-      "real_speaker_id": "5772",
-      "position_frames": 65866
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.27396022072784,
-      "end_time": 32.0,
-      "duration": 0.7260397792721598,
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-      "duration_frames": 11616,
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-      "utterance_id": "2625-127773",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2625-127773.flac |",
-      "real_speaker_id": "2625",
-      "position_frames": 144668
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2625/cough/0076.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/102/cough/0106.wav",
-      "duration": 0.96,
-      "start_time": 7.769882587864953,
-      "speaker_id": "102"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5772/laugh/0106.wav",
-      "duration": 0.96,
-      "start_time": 13.4871154175061,
-      "speaker_id": "5772"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5772/cough/0087.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055242.json b/conversations/conv_055242.json
deleted file mode 100644
index 700568e9b97fca4bee34c92dc72460b244decb3f..0000000000000000000000000000000000000000
--- a/conversations/conv_055242.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.2737974999639174,
-      "duration": 4.2737974999639174,
-      "start_frame": 0,
-      "duration_frames": 68380,
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-      "utterance_id": "7800-283478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283478.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.582948847830711,
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-      "utterance_id": "7559-96246",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7559-96246.flac |",
-      "real_speaker_id": "7559",
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-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "7800-283492",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7800-283492.flac |",
-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7800-283493",
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-      "real_speaker_id": "7800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-    {
-      "segment_id": "seg0005",
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-      "end_time": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "duration": 1.12,
-      "start_time": 10.726320393880078,
-      "speaker_id": "7800"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055245.json b/conversations/conv_055245.json
deleted file mode 100644
index 2c4bbf157aa0724ac4289d5ebf32e8c02503ab73..0000000000000000000000000000000000000000
--- a/conversations/conv_055245.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.3676531526839,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.652469859641631,
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-      "overlap": false,
-      "utterance_id": "8470-286666",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286666.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 6.431646095649185,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3334-171008.flac |",
-      "real_speaker_id": "3334",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "start_time": 13.51477793470523,
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-      "overlap": false,
-      "utterance_id": "7139-75360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7139-75360.flac |",
-      "real_speaker_id": "7139",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.9963375608698,
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-      "overlap": false,
-      "utterance_id": "8470-286675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286675.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.48729116684263,
-      "end_time": 31.3676531526839,
-      "duration": 6.880361985841267,
-      "start_frame": 391796,
-      "duration_frames": 110085,
-      "overlap": false,
-      "utterance_id": "8470-286675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8470-286675.flac |",
-      "real_speaker_id": "8470",
-      "position_frames": 82546
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_0.wav",
-      "duration": 1.83578231292517,
-      "start_time": 16.926863936873666
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8470/laugh/0080.wav",
-      "duration": 0.5889106283098542,
-      "start_time": 5.751809166373198,
-      "speaker_id": "8470"
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-    {
-      "event_class": "cough",
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-      "speaker_id": "3334"
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 12.154375439770662,
-      "speaker_id": "7139"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8470/laugh/0067.wav",
-      "duration": 1.2,
-      "start_time": 16.641656494274102,
-      "speaker_id": "8470"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055253.json b/conversations/conv_055253.json
deleted file mode 100644
index b6b5eb246568d0d178f4ead1677d42e192e392f8..0000000000000000000000000000000000000000
--- a/conversations/conv_055253.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "start_time": 0.0,
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-      "utterance_id": "730-360",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-360.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.714142099302422,
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-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 87562
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.13930911805314,
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-      "overlap": false,
-      "utterance_id": "730-358",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-358.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.85013088659776,
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-      "duration": 5.965268370313487,
-      "start_frame": 397602,
-      "duration_frames": 95444,
-      "overlap": false,
-      "utterance_id": "8678-280914",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8678-280914.flac |",
-      "real_speaker_id": "8678",
-      "position_frames": 188221
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 31.344121624602916,
-      "end_time": 32.0,
-      "duration": 0.6558783753970836,
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-      "duration_frames": 10494,
-      "overlap": false,
-      "utterance_id": "730-359",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/730-359.flac |",
-      "real_speaker_id": "730",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/116434_2.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8678/laugh/0034.wav",
-      "duration": 1.48,
-      "start_time": 15.892316178969057,
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-      "event_class": "cough",
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-      "speaker_id": "8678"
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-      "speaker_id": "730"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/730/cough/0101.wav",
-      "duration": 0.6885230767887551,
-      "start_time": 31.311476923211245,
-      "speaker_id": "730"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055254.json b/conversations/conv_055254.json
deleted file mode 100644
index 7233a3faeeb6b1be5a5a531b3b216466de4ba145..0000000000000000000000000000000000000000
--- a/conversations/conv_055254.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1639-132848",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-132848.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.010541760541747,
-      "end_time": 8.833708701108023,
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-      "utterance_id": "380-129066",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129066.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.629792391722457,
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-      "overlap": false,
-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.30390376251028,
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-      "utterance_id": "380-129064",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129064.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.143966262921932,
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-      "utterance_id": "1639-133290",
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-      "real_speaker_id": "1639",
-      "position_frames": 78860
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/380-129064.flac |",
-      "real_speaker_id": "380",
-      "position_frames": 66865
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.86724181989309,
-      "end_time": 32.0,
-      "duration": 1.1327581801069115,
-      "start_frame": 493875,
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-      "utterance_id": "1639-133290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1639-133290.flac |",
-      "real_speaker_id": "1639",
-      "position_frames": 166655
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/140454.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54057.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1639/laugh/0104.wav",
-      "duration": 1.24,
-      "start_time": 0.4653619702745601,
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-    },
-    {
-      "event_class": "cough",
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-      "duration": 0.4923910609437434,
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-    {
-      "event_class": "cough",
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-      "duration": 1.12,
-      "start_time": 15.933878627120356,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055255.json b/conversations/conv_055255.json
deleted file mode 100644
index a2cd6651e1b772a6a45127412ddee0b8fb145c2e..0000000000000000000000000000000000000000
--- a/conversations/conv_055255.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.745695171867272,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "6484-67787",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-67787.flac |",
-      "real_speaker_id": "6484",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/608-123155.flac |",
-      "real_speaker_id": "608",
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 13.678747944902753,
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-      "duration_frames": 96220,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69649.flac |",
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69655.flac |",
-      "real_speaker_id": "6484",
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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\ No newline at end of file
diff --git a/conversations/conv_055258.json b/conversations/conv_055258.json
deleted file mode 100644
index 1d509ef7723615126bbc6ddde85434355f662447..0000000000000000000000000000000000000000
--- a/conversations/conv_055258.json
+++ /dev/null
@@ -1,108 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.1738964845239,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.599423832420903,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19373.flac |",
-      "real_speaker_id": "5261",
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-      "utterance_id": "3187-168500",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168500.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.917958120599085,
-      "end_time": 21.734323914414652,
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-      "duration_frames": 61061,
-      "overlap": false,
-      "utterance_id": "5261-19371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5261-19371.flac |",
-      "real_speaker_id": "5261",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.902378819371904,
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-      "overlap": false,
-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.739598184432367,
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-      "duration": 4.434298300091534,
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-      "overlap": false,
-      "utterance_id": "5049-25947",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5049-25947.flac |",
-      "real_speaker_id": "5049",
-      "position_frames": 54710
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_055262.json b/conversations/conv_055262.json
deleted file mode 100644
index 4aaf2d2f06cb849ff5e58c2b0ee87fa340cc4853..0000000000000000000000000000000000000000
--- a/conversations/conv_055262.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
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-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 140207
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1958-144503.flac |",
-      "real_speaker_id": "1958",
-      "position_frames": 153922
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.583273639172067,
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-      "duration": 1.4167263608279335,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 203844
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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-      "start_time": 9.120013726058612
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8684/laugh/0025.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1958/laugh/0112.wav",
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-      "start_time": 8.207400667448036,
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8684/cough/0018.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1958/laugh/0011.wav",
-      "duration": 1.24,
-      "start_time": 12.858908559517795,
-      "speaker_id": "1958"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8684/laugh/0048.wav",
-      "duration": 1.2,
-      "start_time": 25.045168915646965,
-      "speaker_id": "8684"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1958/laugh/0090.wav",
-      "duration": 1.04,
-      "start_time": 23.74504125021896,
-      "speaker_id": "1958"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055274.json b/conversations/conv_055274.json
deleted file mode 100644
index 850742cb2102c5defc6f759a94e48f56bd6ee4b9..0000000000000000000000000000000000000000
--- a/conversations/conv_055274.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "5101-67854",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5101-67854.flac |",
-      "real_speaker_id": "5101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.612836518058551,
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-      "utterance_id": "5101-67853",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5101-67853.flac |",
-      "real_speaker_id": "5101",
-      "position_frames": 0
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-      "utterance_id": "3168-173565",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173565.flac |",
-      "real_speaker_id": "3168",
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "7376",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.31645661167782,
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-      "utterance_id": "5101-40462",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5101-40462.flac |",
-      "real_speaker_id": "5101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.64111343198348,
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-      "overlap": false,
-      "utterance_id": "3168-173564",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3168-173564.flac |",
-      "real_speaker_id": "3168",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/365519_0.wav",
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-      "duration": 4.4921401109720644,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3168/laugh/0021.wav",
-      "duration": 1.6,
-      "start_time": 9.932086858307631,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5101/laugh/0045.wav",
-      "duration": 0.5192669929807177,
-      "start_time": 26.539237995761823,
-      "speaker_id": "5101"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055278.json b/conversations/conv_055278.json
deleted file mode 100644
index b7e02abdd5899debef91dd4fb31d375dc4dc9907..0000000000000000000000000000000000000000
--- a/conversations/conv_055278.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "real_speaker_id": "107",
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-      "segment_id": "seg0005",
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-      "position_frames": 129803
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-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.238613460597087,
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_055279.json b/conversations/conv_055279.json
deleted file mode 100644
index e064c1804772c2455e8f2b5d4b6f19c8391b6dab..0000000000000000000000000000000000000000
--- a/conversations/conv_055279.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.44841606800022,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
-      "real_speaker_id": "128",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/128-134884.flac |",
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-      "position_frames": 241930
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-  "background_events": [
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\ No newline at end of file
diff --git a/conversations/conv_055281.json b/conversations/conv_055281.json
deleted file mode 100644
index e791c024cf27e3ef4a2bba5c62f597e1337af7ff..0000000000000000000000000000000000000000
--- a/conversations/conv_055281.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
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-  "num_speakers": 3,
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-      "utterance_id": "1383-130533",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130533.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055296.json b/conversations/conv_055296.json
deleted file mode 100644
index 9a95283ea0747eb6ea564006eafaf114c463faa9..0000000000000000000000000000000000000000
--- a/conversations/conv_055296.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "duration": 1.12,
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-      "speaker_id": "6754"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055297.json b/conversations/conv_055297.json
deleted file mode 100644
index b3e52eea63581b90b424d934d2912dddf1b69b76..0000000000000000000000000000000000000000
--- a/conversations/conv_055297.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.710952925027144,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "8328-280925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
-      "position_frames": 0
-    },
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-      "start_time": 6.973667833334992,
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-      "utterance_id": "8328-280925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
-      "position_frames": 101353
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-      "utterance_id": "3070-166423",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166423.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.243797400298213,
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-      "utterance_id": "8328-280925",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8328-280925.flac |",
-      "real_speaker_id": "8328",
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-    {
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-      "speaker_id": 2,
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-      "duration_frames": 60507,
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-      "utterance_id": "3070-166421",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3070-166421.flac |",
-      "real_speaker_id": "3070",
-      "position_frames": 74458
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/429494_2.wav",
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\ No newline at end of file
diff --git a/conversations/conv_055300.json b/conversations/conv_055300.json
deleted file mode 100644
index 0267e63c692ebed2cb63e93a3da862d382ebe7ca..0000000000000000000000000000000000000000
--- a/conversations/conv_055300.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.76577800557444,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-123882.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-157088.flac |",
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-      "start_time": 21.092549399327513,
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-      "utterance_id": "3983-5371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3983-5371.flac |",
-      "real_speaker_id": "3983",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.878274078481873,
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-      "duration_frames": 78200,
-      "overlap": false,
-      "utterance_id": "205-159056",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/205-159056.flac |",
-      "real_speaker_id": "205",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366512.wav",
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-      "start_time": 0,
-      "speaker_id": "205"
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-    {
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-      "start_time": 14.326171933963868,
-      "speaker_id": "679"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055307.json b/conversations/conv_055307.json
deleted file mode 100644
index f2caad30e0132421ddd6cddea196f357f75a1b0a..0000000000000000000000000000000000000000
--- a/conversations/conv_055307.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26950.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1166-14986.flac |",
-      "real_speaker_id": "1166",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5115-26947.flac |",
-      "real_speaker_id": "5115",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 17.982395330622477,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/409-124990.flac |",
-      "real_speaker_id": "409",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
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-    {
-      "segment_id": "seg0005",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.94,
-      "start_time": 31.06,
-      "speaker_id": "5115"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055310.json b/conversations/conv_055310.json
deleted file mode 100644
index c237e26ff4466800c78afc174df5714be7a56bc7..0000000000000000000000000000000000000000
--- a/conversations/conv_055310.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.22509296090805,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/54-121080.flac |",
-      "real_speaker_id": "54",
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-      "real_speaker_id": "1448",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/54-121080.flac |",
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-  "background_events": [
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-    }
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-}
\ No newline at end of file
diff --git a/conversations/conv_055311.json b/conversations/conv_055311.json
deleted file mode 100644
index 6a2d42370eb9398d3c323d87131556bf30baaa2b..0000000000000000000000000000000000000000
--- a/conversations/conv_055311.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.233860862736993,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-111797.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 0
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-      "start_time": 4.670519986532755,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282381.flac |",
-      "real_speaker_id": "9000",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-109178.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 0
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-      "utterance_id": "9000-282381",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282381.flac |",
-      "real_speaker_id": "9000",
-      "position_frames": 80894
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.2228340076689,
-      "end_time": 26.89719792083544,
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-      "utterance_id": "6065-111797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6065-111797.flac |",
-      "real_speaker_id": "6065",
-      "position_frames": 60364
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.785704439722938,
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-      "utterance_id": "9000-282380",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9000-282380.flac |",
-      "real_speaker_id": "9000",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055316.json b/conversations/conv_055316.json
deleted file mode 100644
index 5032a13c9359241497214b09ad087cab690788e3..0000000000000000000000000000000000000000
--- a/conversations/conv_055316.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
-      "real_speaker_id": "2391",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2391-145015.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6743-72306.flac |",
-      "real_speaker_id": "6743",
-      "position_frames": 89718
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "49-121052",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/49-121052.flac |",
-      "real_speaker_id": "49",
-      "position_frames": 68193
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/138048.wav",
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-      "event_class": "laugh",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055327.json b/conversations/conv_055327.json
deleted file mode 100644
index c6bcc6c7eaf2e7366e20461c8b4521f9bebef0d3..0000000000000000000000000000000000000000
--- a/conversations/conv_055327.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "1334-135589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1334-135589.flac |",
-      "real_speaker_id": "1334",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.8329746760296715,
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-      "utterance_id": "369-125882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
-      "real_speaker_id": "369",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1334-135589.flac |",
-      "real_speaker_id": "1334",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "1323-149236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1323-149236.flac |",
-      "real_speaker_id": "1323",
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-    {
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-      "real_speaker_id": "1334",
-      "position_frames": 131123
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
-      "real_speaker_id": "369",
-      "position_frames": 52372
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.03687223040485,
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-      "utterance_id": "1334-135589",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1334-135589.flac |",
-      "real_speaker_id": "1334",
-      "position_frames": 202167
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1334/cough/0100.wav",
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/369/cough/0049.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/1334/laugh/0065.wav",
-      "duration": 0.9,
-      "start_time": 31.1,
-      "speaker_id": "1334"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055331.json b/conversations/conv_055331.json
deleted file mode 100644
index 9e505afec3fe6246725e5400650056211a31bc2f..0000000000000000000000000000000000000000
--- a/conversations/conv_055331.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "5043-28396",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5043-28396.flac |",
-      "real_speaker_id": "5043",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-26564.flac |",
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-      "position_frames": 63506
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-      "segment_id": "seg0006",
-      "speaker_id": 1,
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-      "utterance_id": "5132-28304",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5132-28304.flac |",
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-      "position_frames": 72920
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-  ],
-  "background_events": [
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-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
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-      "start_time": 30.68,
-      "speaker_id": "5132"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055341.json b/conversations/conv_055341.json
deleted file mode 100644
index 1d5658967a77ddbf314ec6e581507937997c6b1f..0000000000000000000000000000000000000000
--- a/conversations/conv_055341.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "real_speaker_id": "807",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/807-124223.flac |",
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-      "real_speaker_id": "7238",
-      "position_frames": 77757
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6388-64974.flac |",
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-      "position_frames": 50699
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-  ],
-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055346.json b/conversations/conv_055346.json
deleted file mode 100644
index ef3bf5cd0dffb4d6cbe6461cce268be3609027be..0000000000000000000000000000000000000000
--- a/conversations/conv_055346.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
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-      "real_speaker_id": "2909",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "7337-89742",
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-      "real_speaker_id": "7337",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "7337-92819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7337-92819.flac |",
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-      "position_frames": 176735
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-  "foreground_events": [
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-    {
-      "event_class": "laugh",
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-      "duration": 1.02,
-      "start_time": 30.98,
-      "speaker_id": "7337"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055350.json b/conversations/conv_055350.json
deleted file mode 100644
index 188b1f737297c73f4ed75f08cc47c12636b654f1..0000000000000000000000000000000000000000
--- a/conversations/conv_055350.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "421-124401",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-124401.flac |",
-      "real_speaker_id": "421",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
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-    {
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-      "utterance_id": "7198-80654",
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-      "real_speaker_id": "7198",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "421",
-      "position_frames": 95451
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "7198",
-      "position_frames": 83242
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 27.38676280013307,
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-      "utterance_id": "201-127786",
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-      "real_speaker_id": "201",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
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-  "paralinguistic_events": [
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-      "duration": 1.02,
-      "start_time": 22.454553799644252,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055357.json b/conversations/conv_055357.json
deleted file mode 100644
index 4893a61258fae96ba2de0c3ce6360e62e2ac5e38..0000000000000000000000000000000000000000
--- a/conversations/conv_055357.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.604630165652101,
-      "duration": 3.604630165652101,
-      "start_frame": 0,
-      "duration_frames": 57674,
-      "overlap": false,
-      "utterance_id": "2090-149737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2090-149737.flac |",
-      "real_speaker_id": "2090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.266704460310379,
-      "end_time": 8.75007664457565,
-      "duration": 4.48337218426527,
-      "start_frame": 68267,
-      "duration_frames": 71733,
-      "overlap": true,
-      "utterance_id": "8587-295524",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295524.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 9.39581395565802,
-      "end_time": 13.422174916227393,
-      "duration": 4.026360960569372,
-      "start_frame": 150333,
-      "duration_frames": 64421,
-      "overlap": true,
-      "utterance_id": "1373-132103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.564959953518946,
-      "end_time": 18.286975147272948,
-      "duration": 3.722015193754001,
-      "start_frame": 233039,
-      "duration_frames": 59552,
-      "overlap": false,
-      "utterance_id": "2090-151646",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2090-151646.flac |",
-      "real_speaker_id": "2090",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 18.767188900960527,
-      "end_time": 25.145445808025272,
-      "duration": 6.378256907064747,
-      "start_frame": 300275,
-      "duration_frames": 102052,
-      "overlap": false,
-      "utterance_id": "1373-135029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.762794337555476,
-      "end_time": 29.55073762368047,
-      "duration": 3.787943286124992,
-      "start_frame": 412204,
-      "duration_frames": 60607,
-      "overlap": false,
-      "utterance_id": "8587-295525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8587-295525.flac |",
-      "real_speaker_id": "8587",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 30.67565031840853,
-      "end_time": 32.0,
-      "duration": 1.324349681591471,
-      "start_frame": 490810,
-      "duration_frames": 21189,
-      "overlap": false,
-      "utterance_id": "1373-135029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 102052
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
-      "duration": 1.1509000339246591,
-      "start_time": 14.877614277484449
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2090/laugh/0058.wav",
-      "duration": 0.6421394918300096,
-      "start_time": 3.88955769429022,
-      "speaker_id": "2090"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2090/cough/0020.wav",
-      "duration": 0.6004803985524982,
-      "start_time": 3.727706652190378,
-      "speaker_id": "2090"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8587/laugh/0066.wav",
-      "duration": 1.18,
-      "start_time": 9.007336927756592,
-      "speaker_id": "8587"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8587/cough/0114.wav",
-      "duration": 0.9629932831736903,
-      "start_time": 3.1235643169329723,
-      "speaker_id": "8587"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1373/laugh/0073.wav",
-      "duration": 0.8240956390699483,
-      "start_time": 8.370568248968038,
-      "speaker_id": "1373"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1373/laugh/0089.wav",
-      "duration": 1.4385458547655503,
-      "start_time": 17.248767229006997,
-      "speaker_id": "1373"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1373/laugh/0068.wav",
-      "duration": 0.6115627802588648,
-      "start_time": 31.234196592044405,
-      "speaker_id": "1373"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055366.json b/conversations/conv_055366.json
deleted file mode 100644
index 3c30717f160e10841ac6ea261640186e169b37a7..0000000000000000000000000000000000000000
--- a/conversations/conv_055366.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.419221750705712,
-      "duration": 3.419221750705712,
-      "start_frame": 0,
-      "duration_frames": 54707,
-      "overlap": false,
-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.335566264241198,
-      "end_time": 8.64269405514952,
-      "duration": 4.307127790908321,
-      "start_frame": 69369,
-      "duration_frames": 68914,
-      "overlap": false,
-      "utterance_id": "1241-121106",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1241-121106.flac |",
-      "real_speaker_id": "1241",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 8.83055563776803,
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-      "duration": 4.636194246112316,
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-      "duration_frames": 74179,
-      "overlap": false,
-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 54707
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 13.195142393746934,
-      "end_time": 19.057855247750172,
-      "duration": 5.862712854003238,
-      "start_frame": 211122,
-      "duration_frames": 93803,
-      "overlap": true,
-      "utterance_id": "1241-121103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1241-121103.flac |",
-      "real_speaker_id": "1241",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.178737306340626,
-      "end_time": 24.18499223288576,
-      "duration": 4.006254926545134,
-      "start_frame": 322859,
-      "duration_frames": 64100,
-      "overlap": false,
-      "utterance_id": "2237-152229",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2237-152229.flac |",
-      "real_speaker_id": "2237",
-      "position_frames": 128886
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 24.43781452182263,
-      "end_time": 29.12412309827447,
-      "duration": 4.686308576451839,
-      "start_frame": 391005,
-      "duration_frames": 74980,
-      "overlap": false,
-      "utterance_id": "1241-121103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1241-121103.flac |",
-      "real_speaker_id": "1241",
-      "position_frames": 93803
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 29.510850863780952,
-      "end_time": 32.0,
-      "duration": 2.489149136219048,
-      "start_frame": 472173,
-      "duration_frames": 39826,
-      "overlap": false,
-      "utterance_id": "834-130871",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/834-130871.flac |",
-      "real_speaker_id": "834",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/49538_1.wav",
-      "duration": 4.701275821121309,
-      "start_time": 3.5206287064369146
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-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/235566.wav",
-      "duration": 3.5709344343605203,
-      "start_time": 15.02319802201958
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2237/laugh/0017.wav",
-      "duration": 0.8629238486775945,
-      "start_time": 3.709261812958698,
-      "speaker_id": "2237"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1241/laugh/0097.wav",
-      "duration": 1.0530660491151018,
-      "start_time": 6.874425868747817,
-      "speaker_id": "1241"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2237/laugh/0004.wav",
-      "duration": 1.0824195594978403,
-      "start_time": 22.163615329036126,
-      "speaker_id": "2237"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1241/cough/0109.wav",
-      "duration": 1.094379701929832,
-      "start_time": 23.340083950571028,
-      "speaker_id": "1241"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/834/laugh/0062.wav",
-      "duration": 1.2,
-      "start_time": 30.384039719325347,
-      "speaker_id": "834"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055370.json b/conversations/conv_055370.json
deleted file mode 100644
index d527f6e5c6e3f1849f9d44fd6eb71060c007ad1c..0000000000000000000000000000000000000000
--- a/conversations/conv_055370.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.6333128350610835,
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-      "start_frame": 0,
-      "duration_frames": 90133,
-      "overlap": false,
-      "utterance_id": "7555-105394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-105394.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.716489241581572,
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-      "overlap": true,
-      "utterance_id": "2785-154284",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-154284.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.90809230733749,
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-      "duration": 4.052792766512053,
-      "start_frame": 174529,
-      "duration_frames": 64844,
-      "overlap": false,
-      "utterance_id": "7555-101283",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7555-101283.flac |",
-      "real_speaker_id": "7555",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.249840699514166,
-      "end_time": 20.309280423701058,
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-      "start_frame": 243997,
-      "duration_frames": 80951,
-      "overlap": false,
-      "utterance_id": "402-126843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-126843.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.2860513527223,
-      "end_time": 25.55777310897128,
-      "duration": 4.271721756248978,
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-      "duration_frames": 68347,
-      "overlap": false,
-      "utterance_id": "402-130001",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/402-130001.flac |",
-      "real_speaker_id": "402",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 26.184835957409547,
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-      "duration": 5.815164042590453,
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-      "duration_frames": 93042,
-      "overlap": false,
-      "utterance_id": "2785-163322",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2785-163322.flac |",
-      "real_speaker_id": "2785",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/417229.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/156110.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7555/laugh/0058.wav",
-      "duration": 1.28,
-      "start_time": 0,
-      "speaker_id": "7555"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7555/cough/0073.wav",
-      "duration": 1.42,
-      "start_time": 5.815601220862872,
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2785/laugh/0003.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2785/cough/0069.wav",
-      "duration": 0.6979904845930708,
-      "start_time": 9.537399144988234,
-      "speaker_id": "2785"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7555/laugh/0033.wav",
-      "duration": 1.4,
-      "start_time": 15.129668454954029,
-      "speaker_id": "7555"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/402/laugh/0097.wav",
-      "duration": 0.823459733116791,
-      "start_time": 20.165017139714845,
-      "speaker_id": "402"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/402/cough/0120.wav",
-      "duration": 0.9092158150300536,
-      "start_time": 21.954715412741848,
-      "speaker_id": "402"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055384.json b/conversations/conv_055384.json
deleted file mode 100644
index a5c78c846ae5d4a3158dfe9f73659a2723ada4dd..0000000000000000000000000000000000000000
--- a/conversations/conv_055384.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.489482363149646,
-      "duration": 5.489482363149646,
-      "start_frame": 0,
-      "duration_frames": 87831,
-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3356-132542.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "225",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-}
\ No newline at end of file
diff --git a/conversations/conv_055385.json b/conversations/conv_055385.json
deleted file mode 100644
index b8f7276e6ee072dc3803a39cbfe55cb348942832..0000000000000000000000000000000000000000
--- a/conversations/conv_055385.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "5636-41790",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5636-41790.flac |",
-      "real_speaker_id": "5636",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87791.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121770.flac |",
-      "real_speaker_id": "1274",
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-      "speaker_id": 0,
-      "start_time": 16.86484821286242,
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-      "real_speaker_id": "5636",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1274-121771.flac |",
-      "real_speaker_id": "1274",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "start_time": 29.386250009311592,
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-      "utterance_id": "5190-87791",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5190-87791.flac |",
-      "real_speaker_id": "5190",
-      "position_frames": 75380
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\ No newline at end of file
diff --git a/conversations/conv_055389.json b/conversations/conv_055389.json
deleted file mode 100644
index b5e757ad459bb64aefab26b43de1d27d87cb6616..0000000000000000000000000000000000000000
--- a/conversations/conv_055389.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "8825-292252",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "utterance_id": "949-134660",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055393.json b/conversations/conv_055393.json
deleted file mode 100644
index 005f7a9d02447d06d8b206af56ff815ab30a1b6d..0000000000000000000000000000000000000000
--- a/conversations/conv_055393.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.421736019236793,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055402.json b/conversations/conv_055402.json
deleted file mode 100644
index 640360198b3a796141d7f9dc55bbacd7c3f9ea56..0000000000000000000000000000000000000000
--- a/conversations/conv_055402.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.863753229625736,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 5.517069137591403,
-      "duration": 5.517069137591403,
-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.524597285983251,
-      "end_time": 10.01060973988079,
-      "duration": 3.486012453897539,
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-      "overlap": false,
-      "utterance_id": "7437-96153",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96153.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.38704153767761,
-      "end_time": 14.757981697864352,
-      "duration": 4.37094016018674,
-      "start_frame": 166192,
-      "duration_frames": 69935,
-      "overlap": false,
-      "utterance_id": "6529-62554",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62554.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 88273
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.09842422577331,
-      "end_time": 20.448035636686555,
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-      "overlap": false,
-      "utterance_id": "7437-96157",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7437-96157.flac |",
-      "real_speaker_id": "7437",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.01671902957209,
-      "end_time": 24.991977472850024,
-      "duration": 4.975258443277932,
-      "start_frame": 320267,
-      "duration_frames": 79604,
-      "overlap": true,
-      "utterance_id": "6529-62556",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6529-62556.flac |",
-      "real_speaker_id": "6529",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.44977441036668,
-      "end_time": 31.863753229625736,
-      "duration": 5.413978819259055,
-      "start_frame": 423196,
-      "duration_frames": 86623,
-      "overlap": false,
-      "utterance_id": "3346-7599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-7599.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_0.wav",
-      "duration": 2.348028093841436,
-      "start_time": 16.579516053829533
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 4.878370905432911,
-      "start_time": 17.85996695188841
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7437/cough/0117.wav",
-      "duration": 1.16,
-      "start_time": 10.141483266243913,
-      "speaker_id": "7437"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3346/laugh/0148.wav",
-      "duration": 1.0020835309029477,
-      "start_time": 25.216140943112865,
-      "speaker_id": "3346"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055405.json b/conversations/conv_055405.json
deleted file mode 100644
index 4aa7f5eae01b30b12b49ea4211ebb1300c9ea449..0000000000000000000000000000000000000000
--- a/conversations/conv_055405.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.388932643616851,
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-      "overlap": false,
-      "utterance_id": "7138-291943",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291943.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.084525844156421,
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-      "utterance_id": "3346-7599",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-7599.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.193489585055497,
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-      "overlap": false,
-      "utterance_id": "4894-7788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.424505794797511,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3346-158751.flac |",
-      "real_speaker_id": "3346",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.374092590265462,
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-      "duration_frames": 79416,
-      "overlap": false,
-      "utterance_id": "7138-291964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7138-291964.flac |",
-      "real_speaker_id": "7138",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 24.808061376706192,
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-      "overlap": false,
-      "utterance_id": "4894-7788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
-      "position_frames": 57952
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.69553041389761,
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-      "duration": 0.30446958610238894,
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-      "utterance_id": "4894-7788",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4894-7788.flac |",
-      "real_speaker_id": "4894",
-      "position_frames": 158350
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64005.wav",
-      "duration": 0.48210884353741496,
-      "start_time": 6.744874700446652
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_1.wav",
-      "duration": 1.0652834467120182,
-      "start_time": 27.45210199732768
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3346/laugh/0058.wav",
-      "duration": 1.32,
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-      "speaker_id": "3346"
-    },
-    {
-      "event_class": "cough",
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-      "duration": 0.8100658920986197,
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-      "speaker_id": "3346"
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-    {
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-      "duration": 1.08,
-      "start_time": 14.8422931594255,
-      "speaker_id": "4894"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7138/laugh/0016.wav",
-      "duration": 1.0117075877817134,
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-      "speaker_id": "7138"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4894/cough/0081.wav",
-      "duration": 1.17850393115533,
-      "start_time": 30.82149606884467,
-      "speaker_id": "4894"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055409.json b/conversations/conv_055409.json
deleted file mode 100644
index 5deb1e0e5b40202d2576fec6b6ea1b47e8e1126e..0000000000000000000000000000000000000000
--- a/conversations/conv_055409.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1614-141486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-141486.flac |",
-      "real_speaker_id": "1614",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.116248307897499,
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-      "overlap": false,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-1197.flac |",
-      "real_speaker_id": "5045",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 8.303090266895019,
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-      "utterance_id": "4629-19366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.855942177930267,
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-      "utterance_id": "1614-141486",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1614-141486.flac |",
-      "real_speaker_id": "1614",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 17.61834653987345,
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-      "utterance_id": "5045-1196",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-1196.flac |",
-      "real_speaker_id": "5045",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "duration_frames": 95250,
-      "overlap": false,
-      "utterance_id": "5045-23290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5045-23290.flac |",
-      "real_speaker_id": "5045",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.289759110889488,
-      "end_time": 32.0,
-      "duration": 0.7102408891105121,
-      "start_frame": 500636,
-      "duration_frames": 11363,
-      "overlap": false,
-      "utterance_id": "4629-19366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4629-19366.flac |",
-      "real_speaker_id": "4629",
-      "position_frames": 81314
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/87621.wav",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1614/cough/0008.wav",
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-      "start_time": 0,
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-    {
-      "event_class": "laugh",
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-      "start_time": 17.388865557396105,
-      "speaker_id": "1614"
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-    {
-      "event_class": "cough",
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-      "event_class": "laugh",
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-      "speaker_id": "5045"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055412.json b/conversations/conv_055412.json
deleted file mode 100644
index eb6bb41a8a1840572abec1db3cd30a7cdcb962cf..0000000000000000000000000000000000000000
--- a/conversations/conv_055412.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "7995-280250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-280250.flac |",
-      "real_speaker_id": "7995",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-121397.flac |",
-      "real_speaker_id": "1353",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7995-276907.flac |",
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-    {
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7540-101262.flac |",
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-    {
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-      "position_frames": 94460
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "1353-121397",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1353-121397.flac |",
-      "real_speaker_id": "1353",
-      "position_frames": 75425
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/432755.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/7995/laugh/0000.wav",
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-      "event_class": "laugh",
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-      "duration": 1.5,
-      "start_time": 20.395019615004276,
-      "speaker_id": "7540"
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-      "event_class": "cough",
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-      "duration": 0.5282955989150098,
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-      "speaker_id": "1353"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055413.json b/conversations/conv_055413.json
deleted file mode 100644
index dc755a87d305b093c4e7a4b90d76fa7a9e1bad65..0000000000000000000000000000000000000000
--- a/conversations/conv_055413.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.063006038559592,
-      "duration": 6.063006038559592,
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-      "duration_frames": 97008,
-      "overlap": false,
-      "utterance_id": "8272-279781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.058704009882719,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69655.flac |",
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-      "position_frames": 0
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-      "utterance_id": "101-126861",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126861.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.672475848988427,
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-      "duration": 3.8975076467447485,
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-      "overlap": false,
-      "utterance_id": "6484-69655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69655.flac |",
-      "real_speaker_id": "6484",
-      "position_frames": 78460
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.215336158221344,
-      "end_time": 27.290357318744114,
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-      "duration_frames": 81200,
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-      "utterance_id": "8272-279781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 97008
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.58318756164178,
-      "end_time": 30.757573688230192,
-      "duration": 3.174386126588414,
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-      "duration_frames": 50790,
-      "overlap": false,
-      "utterance_id": "6484-69655",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6484-69655.flac |",
-      "real_speaker_id": "6484",
-      "position_frames": 140820
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 31.679904715703636,
-      "end_time": 32.0,
-      "duration": 0.32009528429636447,
-      "start_frame": 506878,
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-      "overlap": false,
-      "utterance_id": "101-126859",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/101-126859.flac |",
-      "real_speaker_id": "101",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/101/laugh/0001.wav",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "101"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055425.json b/conversations/conv_055425.json
deleted file mode 100644
index 220d03d557d4049d48b3b059b2d974be5968567e..0000000000000000000000000000000000000000
--- a/conversations/conv_055425.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.852021907207819,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "806-123715",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-123715.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 60003
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.469488757189575,
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-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 90738
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.03038532970374,
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-      "overlap": false,
-      "utterance_id": "806-124221",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/806-124221.flac |",
-      "real_speaker_id": "806",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.138963609725877,
-      "end_time": 32.0,
-      "duration": 3.8610363902741227,
-      "start_frame": 450223,
-      "duration_frames": 61776,
-      "overlap": false,
-      "utterance_id": "2592-166433",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2592-166433.flac |",
-      "real_speaker_id": "2592",
-      "position_frames": 188699
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
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-      "event_class": "Running_water",
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-      "start_time": 17.458587086782714,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/806/laugh/0030.wav",
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-    {
-      "event_class": "cough",
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-      "duration": 1.005973809012117,
-      "start_time": 25.307662716098022,
-      "speaker_id": "806"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055429.json b/conversations/conv_055429.json
deleted file mode 100644
index ca5264c021635b94d2ade726d8126b080e62131e..0000000000000000000000000000000000000000
--- a/conversations/conv_055429.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.81674412916022,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "start_frame": 0,
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-      "utterance_id": "7170-281512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281512.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123506.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281512.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 99912
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.79830232432133,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/303-123507.flac |",
-      "real_speaker_id": "303",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.79974422870446,
-      "end_time": 25.534858306332673,
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-      "utterance_id": "8425-291444",
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-      "real_speaker_id": "8425",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "7170-281512",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7170-281512.flac |",
-      "real_speaker_id": "7170",
-      "position_frames": 175646
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_13.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7170/cough/0120.wav",
-      "duration": 1.0,
-      "start_time": 25.31842365143208,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055433.json b/conversations/conv_055433.json
deleted file mode 100644
index f99f13fb3cdc4c126556f89e5a1e7368c866f428..0000000000000000000000000000000000000000
--- a/conversations/conv_055433.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "1373-132103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "782",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_055438.json b/conversations/conv_055438.json
deleted file mode 100644
index a91edcfe94e8019ed48f348636ced1cfda08de52..0000000000000000000000000000000000000000
--- a/conversations/conv_055438.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-496.flac |",
-      "real_speaker_id": "26",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/369-125882.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/726-124445.flac |",
-      "real_speaker_id": "726",
-      "position_frames": 78807
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "26-495",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/26-495.flac |",
-      "real_speaker_id": "26",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_055444.json b/conversations/conv_055444.json
deleted file mode 100644
index f8ba2c388c03113ff774dbc0242bb8fc1c6c218e..0000000000000000000000000000000000000000
--- a/conversations/conv_055444.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "position_frames": 0
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\ No newline at end of file
diff --git a/conversations/conv_055445.json b/conversations/conv_055445.json
deleted file mode 100644
index 9d8a796f2854bfc7cc0e6718ef54af3514ec5c95..0000000000000000000000000000000000000000
--- a/conversations/conv_055445.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.62422619956833,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2967-4901.flac |",
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\ No newline at end of file
diff --git a/conversations/conv_055448.json b/conversations/conv_055448.json
deleted file mode 100644
index 9b56ea8dbfc1c9c56d7b91bbf01d6b2239d43fd8..0000000000000000000000000000000000000000
--- a/conversations/conv_055448.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 72371
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-      "segment_id": "seg0004",
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-      "start_time": 23.994839330539186,
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-      "utterance_id": "909-131044",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/909-131044.flac |",
-      "real_speaker_id": "909",
-      "position_frames": 165772
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.244464730846403,
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-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 164689
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
-      "duration": 3.656127695345397,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/909/laugh/0099.wav",
-      "duration": 0.5624601206308678,
-      "start_time": 23.166937287228173,
-      "speaker_id": "909"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2127/laugh/0001.wav",
-      "duration": 0.7902878064386452,
-      "start_time": 29.91528770095209,
-      "speaker_id": "2127"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055452.json b/conversations/conv_055452.json
deleted file mode 100644
index d75906f6e253e9bacee4745aa27f3c832d41fd4e..0000000000000000000000000000000000000000
--- a/conversations/conv_055452.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "44-201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.317192857545997,
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-      "utterance_id": "915-163372",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163372.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.493227442002386,
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-      "duration_frames": 83358,
-      "overlap": true,
-      "utterance_id": "6060-58090",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6060-58090.flac |",
-      "real_speaker_id": "6060",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.78771004636569,
-      "end_time": 23.348742164830263,
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-      "start_frame": 284603,
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-      "overlap": false,
-      "utterance_id": "44-207",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-207.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.232832077282687,
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-      "utterance_id": "915-163371",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/915-163371.flac |",
-      "real_speaker_id": "915",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.90362566081664,
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-      "duration": 4.09637433918336,
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-      "duration_frames": 65541,
-      "overlap": false,
-      "utterance_id": "44-201",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/44-201.flac |",
-      "real_speaker_id": "44",
-      "position_frames": 104732
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_7.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055464.json b/conversations/conv_055464.json
deleted file mode 100644
index a085c3d4eca54793226bbe6e88d376e15f79e80d..0000000000000000000000000000000000000000
--- a/conversations/conv_055464.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.655689199434157,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8718-295445",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295445.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.682045447173671,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295197.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 0
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-      "overlap": true,
-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 24.09933136439815,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1250-135777.flac |",
-      "real_speaker_id": "1250",
-      "position_frames": 106454
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.362308730129257,
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-      "utterance_id": "8718-295446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8718-295446.flac |",
-      "real_speaker_id": "8718",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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-      "event_class": "laugh",
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-      "event_class": "laugh",
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-      "speaker_id": "8718"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055468.json b/conversations/conv_055468.json
deleted file mode 100644
index 526d585e1bb0d216087578d635523dbcd92bb73f..0000000000000000000000000000000000000000
--- a/conversations/conv_055468.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "846-130984",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/846-130984.flac |",
-      "real_speaker_id": "846",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "8316-279798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
-      "real_speaker_id": "8316",
-      "position_frames": 91580
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/294-129973.flac |",
-      "real_speaker_id": "294",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 25.142260710537983,
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-      "real_speaker_id": "846",
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-    {
-      "segment_id": "seg0005",
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-      "utterance_id": "8316-279798",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8316-279798.flac |",
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-      "position_frames": 172309
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/341090_2.wav",
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-    {
-      "event_class": "Dog",
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-    {
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8316/cough/0071.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055472.json b/conversations/conv_055472.json
deleted file mode 100644
index afb341ead2146d8743bc91df4fa25aac4cf4bcac..0000000000000000000000000000000000000000
--- a/conversations/conv_055472.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.707262657084012,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.522327770496573,
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-      "utterance_id": "3592-173545",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3592-173545.flac |",
-      "real_speaker_id": "3592",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 6.394199442014941,
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3592-173545.flac |",
-      "real_speaker_id": "3592",
-      "position_frames": 156068
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_055479.json b/conversations/conv_055479.json
deleted file mode 100644
index b6892d2f2dff2cbfd92ea424333f453e491ff317..0000000000000000000000000000000000000000
--- a/conversations/conv_055479.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-132011.flac |",
-      "real_speaker_id": "252",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7051-259009.flac |",
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-      "real_speaker_id": "252",
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-      "position_frames": 63996
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-      "speaker_id": 0,
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-      "utterance_id": "252-128411",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/252-128411.flac |",
-      "real_speaker_id": "252",
-      "position_frames": 67597
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_055480.json b/conversations/conv_055480.json
deleted file mode 100644
index 86c4c3976feb67397289fb1617cf8872d63c0aad..0000000000000000000000000000000000000000
--- a/conversations/conv_055480.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "1161",
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-      "real_speaker_id": "6356",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
-      "start_time": 28.81205554604464,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/884-129800.flac |",
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-      "position_frames": 147433
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-  ],
-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055487.json b/conversations/conv_055487.json
deleted file mode 100644
index b1ae2c3bc85d975ba7bc5ed92b3f041cb2a98a41..0000000000000000000000000000000000000000
--- a/conversations/conv_055487.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-  "foreground_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/30/cough/0021.wav",
-      "duration": 1.0,
-      "start_time": 29.260942685972616,
-      "speaker_id": "30"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055491.json b/conversations/conv_055491.json
deleted file mode 100644
index 7efd94a50d11e1ce6fee91f9db12b28a6e6b08ed..0000000000000000000000000000000000000000
--- a/conversations/conv_055491.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "2628-153958",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153958.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.311674021317019,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
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-      "segment_id": "seg0002",
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-      "utterance_id": "2628-109663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-109663.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "start_time": 13.019005662610507,
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-      "position_frames": 57182
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "2628-153964",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2628-153964.flac |",
-      "real_speaker_id": "2628",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 21.395191903179068,
-      "end_time": 28.339398126865028,
-      "duration": 6.944206223685962,
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-      "duration_frames": 111107,
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-      "utterance_id": "2696-157636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2696-157636.flac |",
-      "real_speaker_id": "2696",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.353056435845552,
-      "end_time": 32.0,
-      "duration": 2.646943564154448,
-      "start_frame": 469648,
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-      "overlap": false,
-      "utterance_id": "1678-142279",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1678-142279.flac |",
-      "real_speaker_id": "1678",
-      "position_frames": 111491
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/87621.wav",
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-  "foreground_events": [
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-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_7.wav",
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-      "event_class": "Cat",
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-      "speaker_id": "1678"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055496.json b/conversations/conv_055496.json
deleted file mode 100644
index 6bcde56f02368c056a340d8e672da6d0064998f1..0000000000000000000000000000000000000000
--- a/conversations/conv_055496.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5230-4844.flac |",
-      "real_speaker_id": "5230",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.8561980722401,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/258-121528.flac |",
-      "real_speaker_id": "258",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.445173067053524,
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-      "overlap": false,
-      "utterance_id": "551-129024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.353607442652887,
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-      "utterance_id": "551-129024",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
-      "real_speaker_id": "551",
-      "position_frames": 100579
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/189735.wav",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055501.json b/conversations/conv_055501.json
deleted file mode 100644
index 8ba3361ed9f6f6d3acbeb75c068193e4d6b97293..0000000000000000000000000000000000000000
--- a/conversations/conv_055501.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6974-258420.flac |",
-      "real_speaker_id": "6974",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/55-121069.flac |",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_055517.json b/conversations/conv_055517.json
deleted file mode 100644
index 4758d91aa6f7cba02f2983413774262113eca810..0000000000000000000000000000000000000000
--- a/conversations/conv_055517.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.759850585671057,
-  "num_speakers": 3,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5280-204997.flac |",
-      "real_speaker_id": "5280",
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-    {
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-      "utterance_id": "5280-204997",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5280-204997.flac |",
-      "real_speaker_id": "5280",
-      "position_frames": 93674
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1051/laugh/0086.wav",
-      "duration": 1.26,
-      "start_time": 14.544935273018176,
-      "speaker_id": "1051"
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-      "event_class": "cough",
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-      "speaker_id": "1051"
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5280/cough/0120.wav",
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-      "start_time": 31.05836371423619,
-      "speaker_id": "5280"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055521.json b/conversations/conv_055521.json
deleted file mode 100644
index 69511f86566543772730d8005784847920db8e6a..0000000000000000000000000000000000000000
--- a/conversations/conv_055521.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "4289-21393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-21393.flac |",
-      "real_speaker_id": "4289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9604053293986077,
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-      "utterance_id": "2143-145731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2143-145731.flac |",
-      "real_speaker_id": "2143",
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-      "segment_id": "seg0002",
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-      "utterance_id": "7517-100437",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100437.flac |",
-      "real_speaker_id": "7517",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "utterance_id": "4289-12723",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-12723.flac |",
-      "real_speaker_id": "4289",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.47577851403549,
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-      "utterance_id": "7517-100442",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7517-100442.flac |",
-      "real_speaker_id": "7517",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.797333847741477,
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-      "utterance_id": "4289-21393",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4289-21393.flac |",
-      "real_speaker_id": "4289",
-      "position_frames": 72138
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.929066616901522,
-      "end_time": 32.0,
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-      "utterance_id": "2143-145731",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2143-145731.flac |",
-      "real_speaker_id": "2143",
-      "position_frames": 102231
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/2503.wav",
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-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "speaker_id": "7517"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055537.json b/conversations/conv_055537.json
deleted file mode 100644
index 1d2a0b60c09179d943a565d11f700fb6fe72522d..0000000000000000000000000000000000000000
--- a/conversations/conv_055537.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "4019-8895",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.112107409295977,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134819.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8895.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 102281
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173553.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 26.04019330540653,
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-      "utterance_id": "4019-8899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4019-8899.flac |",
-      "real_speaker_id": "4019",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "3571-173555",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3571-173555.flac |",
-      "real_speaker_id": "3571",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-    {
-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.68,
-      "start_time": 30.32,
-      "speaker_id": "3571"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055540.json b/conversations/conv_055540.json
deleted file mode 100644
index 84e9f0aafb4762fd34fb958fead4300826682026..0000000000000000000000000000000000000000
--- a/conversations/conv_055540.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "1311-134176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1311-134176.flac |",
-      "real_speaker_id": "1311",
-      "position_frames": 0
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-      "position_frames": 90996
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "real_speaker_id": "7926",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "7467",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055547.json b/conversations/conv_055547.json
deleted file mode 100644
index a3e828be3c22a4144e20add8964beb4935c6d309..0000000000000000000000000000000000000000
--- a/conversations/conv_055547.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.140628285209697,
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-      "utterance_id": "6221-6879",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6221-6879.flac |",
-      "real_speaker_id": "6221",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5993",
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-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5154-26558.flac |",
-      "real_speaker_id": "5154",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19685.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "duration": 1.4131551716425972,
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-      "speaker_id": "5993"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055556.json b/conversations/conv_055556.json
deleted file mode 100644
index 92180546ceb51545ef893d2d1e728a6ee63d437f..0000000000000000000000000000000000000000
--- a/conversations/conv_055556.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "6538-81843",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81843.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 1,
-      "start_time": 5.783866427892596,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121081.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/149-125750.flac |",
-      "real_speaker_id": "149",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
-      "real_speaker_id": "58",
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-      "speaker_id": 0,
-      "start_time": 20.6726313434814,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6538-81859.flac |",
-      "real_speaker_id": "6538",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "58",
-      "position_frames": 85677
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.176583820085728,
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-      "utterance_id": "58-121075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/58-121075.flac |",
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-  "background_events": [
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-      "event_class": "Vacuum_cleaner",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055557.json b/conversations/conv_055557.json
deleted file mode 100644
index f9d12bd74963a3990c324ecf8e311ded525bd86e..0000000000000000000000000000000000000000
--- a/conversations/conv_055557.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66121.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66121.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 103367
-    },
-    {
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-      "real_speaker_id": "2238",
-      "position_frames": 171571
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-  ],
-  "background_events": [
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-    {
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-      "duration": 1.24,
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-      "event_class": "cough",
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-      "duration": 0.88,
-      "start_time": 30.020781658189154,
-      "speaker_id": "2238"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055560.json b/conversations/conv_055560.json
deleted file mode 100644
index f5419c9f19abf661c796ddc0110aa868fbf67c9c..0000000000000000000000000000000000000000
--- a/conversations/conv_055560.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.375539095504884,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/233-134440.flac |",
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-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4549-39620.flac |",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_055576.json b/conversations/conv_055576.json
deleted file mode 100644
index accf4bdc0bfc910a77ade1a68b1a8d33acacc27e..0000000000000000000000000000000000000000
--- a/conversations/conv_055576.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1733-139046.flac |",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_055583.json b/conversations/conv_055583.json
deleted file mode 100644
index 21f337355c85600b5cb5d01a7abc4556483c0472..0000000000000000000000000000000000000000
--- a/conversations/conv_055583.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "position_frames": 107809
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\ No newline at end of file
diff --git a/conversations/conv_055584.json b/conversations/conv_055584.json
deleted file mode 100644
index a6ed1054e9d960bfb9aae6f0ed019bedda77054f..0000000000000000000000000000000000000000
--- a/conversations/conv_055584.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
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-}
\ No newline at end of file
diff --git a/conversations/conv_055592.json b/conversations/conv_055592.json
deleted file mode 100644
index 68c45e8b816ad25f3e15f32f7ca39309a653cd7f..0000000000000000000000000000000000000000
--- a/conversations/conv_055592.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2481-12731.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055595.json b/conversations/conv_055595.json
deleted file mode 100644
index 1e6ee9aa1a8098bd10908a02d8c09569fc9c3e7d..0000000000000000000000000000000000000000
--- a/conversations/conv_055595.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7633.flac |",
-      "real_speaker_id": "4235",
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-    },
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-      "start_time": 12.842791628625204,
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-      "utterance_id": "7511-102419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102419.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.358536536782985,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7631.flac |",
-      "real_speaker_id": "4235",
-      "position_frames": 0
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-      "segment_id": "seg0004",
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-      "start_time": 23.267228783850257,
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-      "utterance_id": "7511-102420",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102420.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 30.18994454472749,
-      "end_time": 32.0,
-      "duration": 1.8100554552725114,
-      "start_frame": 483039,
-      "duration_frames": 28960,
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-      "utterance_id": "7511-102419",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7511-102419.flac |",
-      "real_speaker_id": "7511",
-      "position_frames": 76494
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/366510.wav",
-      "duration": 4.810491202689274,
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-    {
-      "event_class": "Cat",
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-      "event_class": "cough",
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-      "speaker_id": "4235"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7511/cough/0030.wav",
-      "duration": 1.247270895343684,
-      "start_time": 14.096981286995506,
-      "speaker_id": "7511"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4235/cough/0080.wav",
-      "duration": 0.548456489466145,
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-      "speaker_id": "4235"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7511/laugh/0088.wav",
-      "duration": 1.12,
-      "start_time": 21.89776381950622,
-      "speaker_id": "7511"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055599.json b/conversations/conv_055599.json
deleted file mode 100644
index bb2afeef2b53bb879debeecf5cc28e8217f5a1d4..0000000000000000000000000000000000000000
--- a/conversations/conv_055599.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.719516858168573,
-      "duration": 4.719516858168573,
-      "start_frame": 0,
-      "duration_frames": 75512,
-      "overlap": false,
-      "utterance_id": "5393-19218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19218.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.0032898690412795,
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-      "duration_frames": 79225,
-      "overlap": false,
-      "utterance_id": "1469-163403",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-163403.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 10.463744743213104,
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-      "utterance_id": "5393-19218",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19218.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 75512
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.214686686507623,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5393-19219.flac |",
-      "real_speaker_id": "5393",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.410728590875838,
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-      "utterance_id": "1469-168608",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1469-168608.flac |",
-      "real_speaker_id": "1469",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.012978715732903,
-      "end_time": 32.0,
-      "duration": 2.9870212842670973,
-      "start_frame": 464207,
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-      "overlap": false,
-      "utterance_id": "3118-5912",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3118-5912.flac |",
-      "real_speaker_id": "3118",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-  "foreground_events": [
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-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Running_water/41634.wav",
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-  "paralinguistic_events": [
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-      "start_time": 15.961574796987163,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3118/laugh/0112.wav",
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-      "duration": 0.3155422994476402,
-      "start_time": 31.68445770055236,
-      "speaker_id": "3118"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055603.json b/conversations/conv_055603.json
deleted file mode 100644
index 20f98dcc357ec5868a88b78f007c79b76f79d530..0000000000000000000000000000000000000000
--- a/conversations/conv_055603.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "utterance_id": "2748-160985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/421-128336.flac |",
-      "real_speaker_id": "421",
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-      "overlap": false,
-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.690834834377387,
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-      "duration": 6.5694544449897005,
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-      "duration_frames": 105111,
-      "overlap": true,
-      "utterance_id": "2748-160985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160985.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 107062
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.237801252984852,
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-      "utterance_id": "2694-28858",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2694-28858.flac |",
-      "real_speaker_id": "2694",
-      "position_frames": 56698
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.63634668896688,
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-      "duration": 1.3636533110331186,
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-      "utterance_id": "2748-160959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2748-160959.flac |",
-      "real_speaker_id": "2748",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377500.wav",
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-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2748/laugh/0100.wav",
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-      "start_time": 4.569807985879493,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055604.json b/conversations/conv_055604.json
deleted file mode 100644
index 2e02f68e2b8072956dc8913a6147dd27014c172f..0000000000000000000000000000000000000000
--- a/conversations/conv_055604.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.99787841500952,
-      "duration": 4.99787841500952,
-      "start_frame": 0,
-      "duration_frames": 79966,
-      "overlap": false,
-      "utterance_id": "4800-73729",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4800-73729.flac |",
-      "real_speaker_id": "4800",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.540107604206542,
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-      "duration": 5.359975638668716,
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-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "4841-26659",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26659.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 85759
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.858998642653763,
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-      "duration_frames": 61847,
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-      "utterance_id": "4841-26660",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4841-26660.flac |",
-      "real_speaker_id": "4841",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.411103916446777,
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-      "utterance_id": "986-129388",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/986-129388.flac |",
-      "real_speaker_id": "986",
-      "position_frames": 72587
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/238753_1.wav",
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055605.json b/conversations/conv_055605.json
deleted file mode 100644
index ffe0b58c633cc3ee46d67bebbfd5aa54e63a349f..0000000000000000000000000000000000000000
--- a/conversations/conv_055605.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.068416626588863,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.23573047161638,
-      "duration": 5.23573047161638,
-      "start_frame": 0,
-      "duration_frames": 83771,
-      "overlap": false,
-      "utterance_id": "8605-292138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-292138.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.510688547597761,
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-      "duration": 6.767226098210586,
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-      "utterance_id": "7277-106404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7277-106404.flac |",
-      "real_speaker_id": "7277",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8605-276939.flac |",
-      "real_speaker_id": "8605",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.882328361219088,
-      "end_time": 31.068416626588863,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2712-3536.flac |",
-      "real_speaker_id": "2712",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20079_1.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "8605"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055608.json b/conversations/conv_055608.json
deleted file mode 100644
index 940bddecf7bf9ed5a7941a5bd1e48622480e1eed..0000000000000000000000000000000000000000
--- a/conversations/conv_055608.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6967-50150",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6967-50150.flac |",
-      "real_speaker_id": "6967",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.9343417124108,
-      "end_time": 10.60636575984523,
-      "duration": 4.67202404743443,
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-      "duration_frames": 74752,
-      "overlap": false,
-      "utterance_id": "1088-129236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1088-129236.flac |",
-      "real_speaker_id": "1088",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "3584-178748",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3584-178748.flac |",
-      "real_speaker_id": "3584",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "position_frames": 0
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6967-50150.flac |",
-      "real_speaker_id": "6967",
-      "position_frames": 81433
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-      "utterance_id": "3584-74477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3584-74477.flac |",
-      "real_speaker_id": "3584",
-      "position_frames": 86068
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/59513_0.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "3584"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055612.json b/conversations/conv_055612.json
deleted file mode 100644
index 17dc2114df1068086209a599e5619a6c3407359a..0000000000000000000000000000000000000000
--- a/conversations/conv_055612.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "start_time": 0.0,
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-      "utterance_id": "6627-67850",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 0
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-    {
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-      "real_speaker_id": "2518",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6627-67850.flac |",
-      "real_speaker_id": "6627",
-      "position_frames": 71332
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-    {
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-      "speaker_id": 1,
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-      "real_speaker_id": "2518",
-      "position_frames": 59014
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "real_speaker_id": "335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.174556515997057,
-      "end_time": 32.0,
-      "duration": 3.8254434840029425,
-      "start_frame": 450792,
-      "duration_frames": 61207,
-      "overlap": false,
-      "utterance_id": "335-125941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125941.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_2.wav",
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-  "paralinguistic_events": [
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/335/laugh/0026.wav",
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-    {
-      "event_class": "cough",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055615.json b/conversations/conv_055615.json
deleted file mode 100644
index 3390f8a41cacbfb99db3811a551099f27302bbd6..0000000000000000000000000000000000000000
--- a/conversations/conv_055615.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7959-109185.flac |",
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-    {
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-      "segment_id": "seg0006",
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-  "foreground_events": [
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-      "speaker_id": "1283"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055624.json b/conversations/conv_055624.json
deleted file mode 100644
index 6453ac0fe9995e1a5af44839945214c2373a1474..0000000000000000000000000000000000000000
--- a/conversations/conv_055624.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8164-279592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279592.flac |",
-      "real_speaker_id": "8164",
-      "position_frames": 0
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-      "start_time": 5.705343109943219,
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-      "utterance_id": "8164-279593",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8164-279593.flac |",
-      "real_speaker_id": "8164",
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "utterance_id": "3686-171133",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171133.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.14474889982414,
-      "end_time": 28.335622322423323,
-      "duration": 4.190873422599182,
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-      "overlap": false,
-      "utterance_id": "3686-171134",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3686-171134.flac |",
-      "real_speaker_id": "3686",
-      "position_frames": 87153
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 28.853885386987823,
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-      "utterance_id": "7585-96245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7585-96245.flac |",
-      "real_speaker_id": "7585",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055628.json b/conversations/conv_055628.json
deleted file mode 100644
index 9bc98a04bab5ebbcf4aefe3e2efbe9a1818246d7..0000000000000000000000000000000000000000
--- a/conversations/conv_055628.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "utterance_id": "7868-110706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110706.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110706.flac |",
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-      "segment_id": "seg0004",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7868-110705.flac |",
-      "real_speaker_id": "7868",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4236-8927.flac |",
-      "real_speaker_id": "4236",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 31.195349272826405,
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-  "background_events": [],
-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
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-    {
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-      "duration": 0.6722676550178954,
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-      "speaker_id": "7868"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055629.json b/conversations/conv_055629.json
deleted file mode 100644
index 214453ee81c766e5f1d6513727f4fb281aae96b1..0000000000000000000000000000000000000000
--- a/conversations/conv_055629.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "6111-59779",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6111-59779.flac |",
-      "real_speaker_id": "6111",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2909-34661.flac |",
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-      "real_speaker_id": "2909",
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "6323-10337",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
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-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "real_speaker_id": "2909",
-      "position_frames": 161800
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6323-10337.flac |",
-      "real_speaker_id": "6323",
-      "position_frames": 67730
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64009.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055632.json b/conversations/conv_055632.json
deleted file mode 100644
index 965b57f2997b7e0664c54f751c6a7843128755aa..0000000000000000000000000000000000000000
--- a/conversations/conv_055632.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1868-2318.flac |",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-      "duration": 1.28,
-      "start_time": 16.730777656542486,
-      "speaker_id": "1868"
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-    {
-      "event_class": "laugh",
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-      "duration": 0.96,
-      "start_time": 22.15711607193125,
-      "speaker_id": "6594"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055642.json b/conversations/conv_055642.json
deleted file mode 100644
index bb7fdffc9583925496c8eb16fd9ee3dcde31a882..0000000000000000000000000000000000000000
--- a/conversations/conv_055642.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "152-87733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-87733.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.0176161154621255,
-      "end_time": 9.721805875509265,
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-      "utterance_id": "4193-48169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4193-48169.flac |",
-      "real_speaker_id": "4193",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.488692474268156,
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-      "duration_frames": 85056,
-      "overlap": false,
-      "utterance_id": "487-129440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.45922818315927,
-      "end_time": 21.772400915932067,
-      "duration": 5.3131727327727996,
-      "start_frame": 263347,
-      "duration_frames": 85010,
-      "overlap": false,
-      "utterance_id": "152-87733",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/152-87733.flac |",
-      "real_speaker_id": "152",
-      "position_frames": 55103
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.21626306168538,
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-      "overlap": false,
-      "utterance_id": "4193-48169",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4193-48169.flac |",
-      "real_speaker_id": "4193",
-      "position_frames": 91267
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 28.29917763444258,
-      "end_time": 32.0,
-      "duration": 3.7008223655574213,
-      "start_frame": 452786,
-      "duration_frames": 59213,
-      "overlap": false,
-      "utterance_id": "487-129440",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/487-129440.flac |",
-      "real_speaker_id": "487",
-      "position_frames": 85056
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/265541.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "4193"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055645.json b/conversations/conv_055645.json
deleted file mode 100644
index edf5b689950c7195ea1b3a110e2da85ec131f233..0000000000000000000000000000000000000000
--- a/conversations/conv_055645.json
+++ /dev/null
@@ -1,165 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.398467020250262,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 5.408290300500916,
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-      "overlap": false,
-      "utterance_id": "666-11243",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11243.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7667.flac |",
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-      "position_frames": 0
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-      "start_time": 11.731132008253002,
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-      "utterance_id": "4427-12471",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-12471.flac |",
-      "real_speaker_id": "4427",
-      "position_frames": 0
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7667.flac |",
-      "real_speaker_id": "2407",
-      "position_frames": 87876
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "4427-20028",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4427-20028.flac |",
-      "real_speaker_id": "4427",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.316095878991167,
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-      "overlap": false,
-      "utterance_id": "666-11244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/666-11244.flac |",
-      "real_speaker_id": "666",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 29.52181753606278,
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-      "utterance_id": "2407-7664",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2407-7664.flac |",
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-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2407/laugh/0084.wav",
-      "duration": 1.64,
-      "start_time": 27.76886452659206,
-      "speaker_id": "2407"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055649.json b/conversations/conv_055649.json
deleted file mode 100644
index b22e91e04ea5cffe45508fbb2b3efc6bee332423..0000000000000000000000000000000000000000
--- a/conversations/conv_055649.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.648319509995716,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1383-130533.flac |",
-      "real_speaker_id": "1383",
-      "position_frames": 0
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-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3779-691.flac |",
-      "real_speaker_id": "3779",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055653.json b/conversations/conv_055653.json
deleted file mode 100644
index a64e3ea691e026a6555ea20b57dd2b4e997fea28..0000000000000000000000000000000000000000
--- a/conversations/conv_055653.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7732-107517.flac |",
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-      "speaker_id": "7732"
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-      "speaker_id": "7732"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055654.json b/conversations/conv_055654.json
deleted file mode 100644
index 8b623143df7d10de8cf4b7ba27f945f084c45c57..0000000000000000000000000000000000000000
--- a/conversations/conv_055654.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "4898-20016",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-20016.flac |",
-      "real_speaker_id": "4898",
-      "position_frames": 83337
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-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 13.891588770945212,
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-      "utterance_id": "1804-131525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-131525.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 19.894768681073973,
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-      "utterance_id": "7208-7768",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7208-7768.flac |",
-      "real_speaker_id": "7208",
-      "position_frames": 57230
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-      "speaker_id": 0,
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-      "utterance_id": "4898-28461",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4898-28461.flac |",
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055665.json b/conversations/conv_055665.json
deleted file mode 100644
index 538c4b902449d81f3b233af2404f363a11419fd4..0000000000000000000000000000000000000000
--- a/conversations/conv_055665.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.601545741966643,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8855-283242.flac |",
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-      "start_time": 17.32719774933909,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8855-302395.flac |",
-      "real_speaker_id": "8855",
-      "position_frames": 70270
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8855-302395",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8855-302395.flac |",
-      "real_speaker_id": "8855",
-      "position_frames": 142112
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": true,
-      "utterance_id": "6131-229040",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6131-229040.flac |",
-      "real_speaker_id": "6131",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_055669.json b/conversations/conv_055669.json
deleted file mode 100644
index 58aa36212fca9ac375f84ffb796bc6d7fd0a909d..0000000000000000000000000000000000000000
--- a/conversations/conv_055669.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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\ No newline at end of file
diff --git a/conversations/conv_055673.json b/conversations/conv_055673.json
deleted file mode 100644
index c81c59f6d633f3f21f8e0e3fc6ccc7d868fd98ec..0000000000000000000000000000000000000000
--- a/conversations/conv_055673.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
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-      "speaker_id": "3490"
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\ No newline at end of file
diff --git a/conversations/conv_055686.json b/conversations/conv_055686.json
deleted file mode 100644
index 775d68442d6c128bac49780771acad5912fcb675..0000000000000000000000000000000000000000
--- a/conversations/conv_055686.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1641-130503",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1641-130503.flac |",
-      "real_speaker_id": "1641",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7395-89880.flac |",
-      "real_speaker_id": "7395",
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-      "start_time": 17.533236405298233,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3867-173237.flac |",
-      "real_speaker_id": "3867",
-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.498628454344594,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7395-89880.flac |",
-      "real_speaker_id": "7395",
-      "position_frames": 70168
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.023440845913008,
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-      "duration": 4.976559154086992,
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-      "utterance_id": "7395-89882",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7395-89882.flac |",
-      "real_speaker_id": "7395",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_055690.json b/conversations/conv_055690.json
deleted file mode 100644
index 213555f678d73fee387f69a7a533b7bfe4a00102..0000000000000000000000000000000000000000
--- a/conversations/conv_055690.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.996737525919624,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7769-99395.flac |",
-      "real_speaker_id": "7769",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7769-99397.flac |",
-      "real_speaker_id": "7769",
-      "position_frames": 0
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-      "utterance_id": "2195-150894",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2195-150894.flac |",
-      "real_speaker_id": "2195",
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-      "start_time": 24.173100194293,
-      "speaker_id": "2195"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055691.json b/conversations/conv_055691.json
deleted file mode 100644
index 6d7b8ddb7f1ec4fadd3373b075527f865e29394e..0000000000000000000000000000000000000000
--- a/conversations/conv_055691.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.819587761290013,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "3554-163609",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3554-163609.flac |",
-      "real_speaker_id": "3554",
-      "position_frames": 0
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-    {
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-}
\ No newline at end of file
diff --git a/conversations/conv_055700.json b/conversations/conv_055700.json
deleted file mode 100644
index 0ac559b8d2801b2a9c2884333741ee17bb2f6b30..0000000000000000000000000000000000000000
--- a/conversations/conv_055700.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "position_frames": 0
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-      "real_speaker_id": "4719",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.1792377431752,
-      "end_time": 32.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6743-72306.flac |",
-      "real_speaker_id": "6743",
-      "position_frames": 63826
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
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-      "duration": 1.38,
-      "start_time": 28.7680613806204,
-      "speaker_id": "4719"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055707.json b/conversations/conv_055707.json
deleted file mode 100644
index 819f553d87e3dc15a5dae34e31811d0d848801dc..0000000000000000000000000000000000000000
--- a/conversations/conv_055707.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 2,
-      "start_time": 0.0,
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-      "utterance_id": "1901-147822",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1901-147822.flac |",
-      "real_speaker_id": "1901",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
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-      "overlap": false,
-      "utterance_id": "2289-152258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152258.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.544743623351597,
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-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 64429
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.758642513224196,
-      "end_time": 26.951377691311638,
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-      "utterance_id": "2289-152253",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2289-152253.flac |",
-      "real_speaker_id": "2289",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.054432488565123,
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-      "utterance_id": "7809-108638",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7809-108638.flac |",
-      "real_speaker_id": "7809",
-      "position_frames": 125790
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_055711.json b/conversations/conv_055711.json
deleted file mode 100644
index 5abb04d3b1e63624b8663cfb44d3d93e079f8306..0000000000000000000000000000000000000000
--- a/conversations/conv_055711.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5424-280358.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1826-139361.flac |",
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-      "real_speaker_id": "1826",
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-    {
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-      "real_speaker_id": "5424",
-      "position_frames": 0
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-}
\ No newline at end of file
diff --git a/conversations/conv_055716.json b/conversations/conv_055716.json
deleted file mode 100644
index 47c75b690a870a8c49b043b368405ca2321eb02b..0000000000000000000000000000000000000000
--- a/conversations/conv_055716.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5460-24509.flac |",
-      "real_speaker_id": "5460",
-      "position_frames": 0
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-      "position_frames": 0
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-      "utterance_id": "5671-24628",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5671-24628.flac |",
-      "real_speaker_id": "5671",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6104-58843.flac |",
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-      "position_frames": 58727
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-    {
-      "segment_id": "seg0005",
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-  "foreground_events": [
-    {
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-      "start_time": 30.72,
-      "speaker_id": "5671"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055720.json b/conversations/conv_055720.json
deleted file mode 100644
index 08c06ad0369597c92ea324c7e87cc3dedbfc8869..0000000000000000000000000000000000000000
--- a/conversations/conv_055720.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.435044674219025,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7967-104986.flac |",
-      "real_speaker_id": "7967",
-      "position_frames": 0
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_055736.json b/conversations/conv_055736.json
deleted file mode 100644
index 02b8ab712dfb7d773b484702d2e472fc13be2697..0000000000000000000000000000000000000000
--- a/conversations/conv_055736.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.67084887554899,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "3876",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3876-174953.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3171-68344.flac |",
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-      "position_frames": 0
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-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3906-184005.flac |",
-      "real_speaker_id": "3906",
-      "position_frames": 0
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-      "speaker_id": 0,
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\ No newline at end of file
diff --git a/conversations/conv_055740.json b/conversations/conv_055740.json
deleted file mode 100644
index 5b3e4991e940dd739c3b77fc07ff23f8d45663fa..0000000000000000000000000000000000000000
--- a/conversations/conv_055740.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "512",
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_055741.json b/conversations/conv_055741.json
deleted file mode 100644
index 0a97459338436110191366ceccb038a84a1c7ed4..0000000000000000000000000000000000000000
--- a/conversations/conv_055741.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/845-130982.flac |",
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-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_055746.json b/conversations/conv_055746.json
deleted file mode 100644
index 2adf9f2f536f510a6c449fb3ea9866ddddd0227b..0000000000000000000000000000000000000000
--- a/conversations/conv_055746.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "utterance_id": "3347-134425",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3347-134425.flac |",
-      "real_speaker_id": "3347",
-      "position_frames": 74254
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3347-134425.flac |",
-      "real_speaker_id": "3347",
-      "position_frames": 155230
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-      "event_class": "Running_water",
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055750.json b/conversations/conv_055750.json
deleted file mode 100644
index 4c5fefee9229c9be3574d08a00d115fdd26c5194..0000000000000000000000000000000000000000
--- a/conversations/conv_055750.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "4748-28399",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-28399.flac |",
-      "real_speaker_id": "4748",
-      "position_frames": 0
-    },
-    {
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-      "speaker_id": 2,
-      "start_time": 3.551661910889867,
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-      "duration": 3.3928750819152373,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-56165.flac |",
-      "real_speaker_id": "6064",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4748-25901.flac |",
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-      "real_speaker_id": "4748",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6064-300880.flac |",
-      "real_speaker_id": "6064",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
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-      "start_time": 27.546910222118417,
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\ No newline at end of file
diff --git a/conversations/conv_055757.json b/conversations/conv_055757.json
deleted file mode 100644
index 449d08ab788a27e0c07eabaf82b99b43346717b7..0000000000000000000000000000000000000000
--- a/conversations/conv_055757.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "3187-168497",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3187-168497.flac |",
-      "real_speaker_id": "3187",
-      "position_frames": 0
-    },
-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6081-41997.flac |",
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-      "position_frames": 99823
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055761.json b/conversations/conv_055761.json
deleted file mode 100644
index 97edb5846e52ed6010da3a7d11b7889351b49f29..0000000000000000000000000000000000000000
--- a/conversations/conv_055761.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055777.json b/conversations/conv_055777.json
deleted file mode 100644
index 3cbd5e1f5e0b9c3a56635f1fbe499d6bce5f517e..0000000000000000000000000000000000000000
--- a/conversations/conv_055777.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "6215-62347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-62347.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.767075478675228,
-      "end_time": 11.712119454005062,
-      "duration": 6.945043975329835,
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-      "overlap": false,
-      "utterance_id": "4235-7632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7632.flac |",
-      "real_speaker_id": "4235",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.309915251975019,
-      "end_time": 16.98532096382224,
-      "duration": 4.675405711847219,
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-      "duration_frames": 74806,
-      "overlap": false,
-      "utterance_id": "4379-18034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18034.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 17.336516641866737,
-      "end_time": 22.206038508989806,
-      "duration": 4.869521867123069,
-      "start_frame": 277384,
-      "duration_frames": 77912,
-      "overlap": false,
-      "utterance_id": "4235-7632",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4235-7632.flac |",
-      "real_speaker_id": "4235",
-      "position_frames": 111120
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 22.661151895108024,
-      "end_time": 26.592854701824056,
-      "duration": 3.931702806716033,
-      "start_frame": 362578,
-      "duration_frames": 62907,
-      "overlap": false,
-      "utterance_id": "4379-18034",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4379-18034.flac |",
-      "real_speaker_id": "4379",
-      "position_frames": 74806
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.25359770104029,
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-      "duration": 4.746402298959708,
-      "start_frame": 436057,
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-      "overlap": false,
-      "utterance_id": "6215-62347",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6215-62347.flac |",
-      "real_speaker_id": "6215",
-      "position_frames": 74448
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4379/laugh/0059.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.0498514336942741,
-      "start_time": 30.950148566305725,
-      "speaker_id": "6215"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055782.json b/conversations/conv_055782.json
deleted file mode 100644
index adbaa99458e6155d94756a1c4a401d65a4b83c8f..0000000000000000000000000000000000000000
--- a/conversations/conv_055782.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.534799659762072,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "5319-42637",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-42637.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 5.183382173625041,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-42637.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 77220
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1740-141148",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1740-141148.flac |",
-      "real_speaker_id": "1740",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.233035115372225,
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-      "duration": 3.364326579444938,
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-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.499652237423,
-      "end_time": 25.45451272854212,
-      "duration": 4.95486049111912,
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-      "overlap": false,
-      "utterance_id": "6694-70837",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6694-70837.flac |",
-      "real_speaker_id": "6694",
-      "position_frames": 53829
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.12350583478438,
-      "end_time": 31.534799659762072,
-      "duration": 5.411293824977695,
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-      "overlap": false,
-      "utterance_id": "5319-64075",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5319-64075.flac |",
-      "real_speaker_id": "5319",
-      "position_frames": 0
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 30.84,
-      "speaker_id": "5319"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055783.json b/conversations/conv_055783.json
deleted file mode 100644
index 939ef83a274c25324cf94215a5961b80aa6f5c60..0000000000000000000000000000000000000000
--- a/conversations/conv_055783.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/510-130560.flac |",
-      "real_speaker_id": "510",
-      "position_frames": 0
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-      "utterance_id": "510-130101",
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-      "position_frames": 0
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-    {
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-      "utterance_id": "510-130103",
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-      "event_class": "Blender",
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\ No newline at end of file
diff --git a/conversations/conv_055794.json b/conversations/conv_055794.json
deleted file mode 100644
index de88e3460c09212738e9124bad902de25cc179db..0000000000000000000000000000000000000000
--- a/conversations/conv_055794.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "utterance_id": "8015-112690",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8015-112690.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
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-    {
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-  "foreground_events": [
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-      "duration": 1.3576632210171506,
-      "start_time": 30.13875095232373,
-      "speaker_id": "2427"
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-      "event_class": "cough",
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-      "duration": 1.16,
-      "start_time": 30.442746463805875,
-      "speaker_id": "2427"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055798.json b/conversations/conv_055798.json
deleted file mode 100644
index 323b21038f27bd6535d4589aa4e41a7ee45dc6e8..0000000000000000000000000000000000000000
--- a/conversations/conv_055798.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7786-118675",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7786-118675.flac |",
-      "real_speaker_id": "7786",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.338676678790644,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128990.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 12.42421443111675,
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-      "overlap": false,
-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 19.769547145161702,
-      "end_time": 23.074510305323614,
-      "duration": 3.304963160161911,
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-      "duration_frames": 52879,
-      "overlap": false,
-      "utterance_id": "663-128991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128991.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.265892865168688,
-      "end_time": 28.491059949679066,
-      "duration": 5.225167084510377,
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-      "overlap": false,
-      "utterance_id": "60-121082",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/60-121082.flac |",
-      "real_speaker_id": "60",
-      "position_frames": 101923
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.992121171936834,
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-      "duration": 3.0078788280631663,
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-      "overlap": false,
-      "utterance_id": "663-128991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/663-128991.flac |",
-      "real_speaker_id": "663",
-      "position_frames": 52879
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/215143.wav",
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-  "foreground_events": [
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-      "start_time": 5.968601110060039,
-      "speaker_id": "663"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055804.json b/conversations/conv_055804.json
deleted file mode 100644
index 4fe28e90dccbfbe6583d5bdfb423218682f32c57..0000000000000000000000000000000000000000
--- a/conversations/conv_055804.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "8465-246940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246940.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.309963992350125,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-130575.flac |",
-      "real_speaker_id": "1403",
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "8465-246940",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8465-246940.flac |",
-      "real_speaker_id": "8465",
-      "position_frames": 78160
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "utterance_id": "1403-138552",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1403-138552.flac |",
-      "real_speaker_id": "1403",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.368389416953903,
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-      "utterance_id": "8465-246943",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055805.json b/conversations/conv_055805.json
deleted file mode 100644
index 33a9d8c23e17ad00470fd147dffdffde1e34ee85..0000000000000000000000000000000000000000
--- a/conversations/conv_055805.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "6167",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "5513-39476",
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\ No newline at end of file
diff --git a/conversations/conv_055809.json b/conversations/conv_055809.json
deleted file mode 100644
index dfd392990ddd18aa03e582cf4de55cc3e49b5532..0000000000000000000000000000000000000000
--- a/conversations/conv_055809.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-  "foreground_events": [
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-      "duration": 0.8954038350543307,
-      "start_time": 4.879170860427342,
-      "speaker_id": "7299"
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-    {
-      "event_class": "cough",
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-      "duration": 0.37723577752407483,
-      "start_time": 10.423065475416282,
-      "speaker_id": "7299"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055813.json b/conversations/conv_055813.json
deleted file mode 100644
index 63a2d2a73f50017042e7febb81ce9f07f56708b8..0000000000000000000000000000000000000000
--- a/conversations/conv_055813.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.15320343108116,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.937622335476325,
-      "duration": 6.937622335476325,
-      "start_frame": 0,
-      "duration_frames": 111001,
-      "overlap": false,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.735856652804309,
-      "end_time": 14.13519730812098,
-      "duration": 6.399340655316669,
-      "start_frame": 123773,
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-      "overlap": false,
-      "utterance_id": "2334-150916",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2334-150916.flac |",
-      "real_speaker_id": "2334",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.256611953678416,
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-      "overlap": false,
-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 18.898828397483904,
-      "end_time": 23.48525490206815,
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-      "duration_frames": 73382,
-      "overlap": true,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 111001
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.93608464596871,
-      "end_time": 27.702603324916076,
-      "duration": 3.7665186789473677,
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-      "duration_frames": 60264,
-      "overlap": false,
-      "utterance_id": "2577-157236",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2577-157236.flac |",
-      "real_speaker_id": "2577",
-      "position_frames": 70211
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 27.113815636369473,
-      "end_time": 31.15320343108116,
-      "duration": 4.039387794711686,
-      "start_frame": 433821,
-      "duration_frames": 64630,
-      "overlap": true,
-      "utterance_id": "332-128985",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/332-128985.flac |",
-      "real_speaker_id": "332",
-      "position_frames": 184383
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366511.wav",
-      "duration": 16.26648339185391,
-      "start_time": 1.1225353263826392
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-  ],
-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "duration": 0.92,
-      "start_time": 16.65587112541144,
-      "speaker_id": "2577"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/332/laugh/0022.wav",
-      "duration": 1.051500749535879,
-      "start_time": 21.134184380323855,
-      "speaker_id": "332"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2577/laugh/0065.wav",
-      "duration": 0.6868200486328563,
-      "start_time": 23.197888526248537,
-      "speaker_id": "2577"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055814.json b/conversations/conv_055814.json
deleted file mode 100644
index 837226c156f391a2e8b1343c8d96a2b112b59db8..0000000000000000000000000000000000000000
--- a/conversations/conv_055814.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.070570162430895,
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-      "duration_frames": 65129,
-      "overlap": false,
-      "utterance_id": "8163-116797",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8163-116797.flac |",
-      "real_speaker_id": "8163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.0322231281996945,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282383.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "overlap": false,
-      "utterance_id": "8163-274549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8163-274549.flac |",
-      "real_speaker_id": "8163",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 15.351517145006337,
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-      "utterance_id": "5700-51744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-51744.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 23.13050753400591,
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-      "duration_frames": 90342,
-      "overlap": false,
-      "utterance_id": "9022-282383",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/9022-282383.flac |",
-      "real_speaker_id": "9022",
-      "position_frames": 94026
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 29.449577173215832,
-      "end_time": 32.0,
-      "duration": 2.5504228267841675,
-      "start_frame": 471193,
-      "duration_frames": 40806,
-      "overlap": false,
-      "utterance_id": "8163-274549",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8163-274549.flac |",
-      "real_speaker_id": "8163",
-      "position_frames": 49470
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_1.wav",
-      "duration": 0.19419501133786848,
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-    {
-      "event_class": "Frying",
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-  "paralinguistic_events": [
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5700/laugh/0006.wav",
-      "duration": 1.24,
-      "start_time": 21.97470050312164,
-      "speaker_id": "5700"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/9022/laugh/0061.wav",
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-    {
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-    {
-      "event_class": "cough",
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-      "duration": 1.2,
-      "start_time": 30.8,
-      "speaker_id": "8163"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055825.json b/conversations/conv_055825.json
deleted file mode 100644
index 092140164ee411f11b34c58830796ef13e915f64..0000000000000000000000000000000000000000
--- a/conversations/conv_055825.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6235-36641",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6235-36641.flac |",
-      "real_speaker_id": "6235",
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-    {
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-    {
-      "segment_id": "seg0003",
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-    {
-      "segment_id": "seg0004",
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-      "real_speaker_id": "6235",
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
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-      "real_speaker_id": "2589",
-      "position_frames": 141798
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055829.json b/conversations/conv_055829.json
deleted file mode 100644
index aabcf664bab15aba054b4e5cccae69d3a941104b..0000000000000000000000000000000000000000
--- a/conversations/conv_055829.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "404-132013",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278197.flac |",
-      "real_speaker_id": "8200",
-      "position_frames": 48522
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8200-278238.flac |",
-      "real_speaker_id": "8200",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-}
\ No newline at end of file
diff --git a/conversations/conv_055833.json b/conversations/conv_055833.json
deleted file mode 100644
index 04f725ce82f40f7331e7217297c5586c65910ea8..0000000000000000000000000000000000000000
--- a/conversations/conv_055833.json
+++ /dev/null
@@ -1,102 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
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-      "utterance_id": "6476-96661",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-96661.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145709.flac |",
-      "real_speaker_id": "2092",
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-      "utterance_id": "6476-57446",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6476-57446.flac |",
-      "real_speaker_id": "6476",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "real_speaker_id": "6476",
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-    {
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-      "utterance_id": "2092-145706",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2092-145706.flac |",
-      "real_speaker_id": "2092",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
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-  "paralinguistic_events": []
-}
\ No newline at end of file
diff --git a/conversations/conv_055838.json b/conversations/conv_055838.json
deleted file mode 100644
index 71d01c84cc5481e1559ff76bb243a3fa3d89751f..0000000000000000000000000000000000000000
--- a/conversations/conv_055838.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "6106",
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\ No newline at end of file
diff --git a/conversations/conv_055844.json b/conversations/conv_055844.json
deleted file mode 100644
index 1965612d66cf03136c0a45e02803cb5723898238..0000000000000000000000000000000000000000
--- a/conversations/conv_055844.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-    {
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\ No newline at end of file
diff --git a/conversations/conv_055848.json b/conversations/conv_055848.json
deleted file mode 100644
index 10a80349027a43d78933a31f12d1c0c63c0cab89..0000000000000000000000000000000000000000
--- a/conversations/conv_055848.json
+++ /dev/null
@@ -1,145 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7189-77777.flac |",
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-      "position_frames": 83476
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-  "background_events": [
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-      "event_class": "Blender",
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-      "event_class": "laugh",
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-      "speaker_id": "7189"
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-      "event_class": "laugh",
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-      "speaker_id": "4779"
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-      "event_class": "cough",
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-      "duration": 0.96,
-      "start_time": 11.737093682972338,
-      "speaker_id": "6877"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.16,
-      "start_time": 16.234925104608944,
-      "speaker_id": "7189"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055852.json b/conversations/conv_055852.json
deleted file mode 100644
index 9404813273da6df60f8c0d14ed7832ac072ed56e..0000000000000000000000000000000000000000
--- a/conversations/conv_055852.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 30.870593853571922,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.173211906314204,
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-      "overlap": false,
-      "utterance_id": "3493-46712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.167330885659736,
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-      "duration": 6.369100560526435,
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-      "utterance_id": "3493-46712",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-46712.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 82771
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 12.86894416786451,
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-      "utterance_id": "1373-135029",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-135029.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.809295454109368,
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-      "utterance_id": "3493-17615",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3493-17615.flac |",
-      "real_speaker_id": "3493",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.230707602739958,
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-      "utterance_id": "1373-132103",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1373-132103.flac |",
-      "real_speaker_id": "1373",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/47000.wav",
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "speaker_id": "3493"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055864.json b/conversations/conv_055864.json
deleted file mode 100644
index 5715b2b0b8e0c3b1b40205872c9756832b88278d..0000000000000000000000000000000000000000
--- a/conversations/conv_055864.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282528.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
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-      "position_frames": 61226
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-    {
-      "segment_id": "seg0003",
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-      "utterance_id": "7510-282967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7510-282967.flac |",
-      "real_speaker_id": "7510",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "2676-143903",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2676-143903.flac |",
-      "real_speaker_id": "2676",
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-    {
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-      "utterance_id": "4652-27525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4652-27525.flac |",
-      "real_speaker_id": "4652",
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055868.json b/conversations/conv_055868.json
deleted file mode 100644
index 7d061f30a05e5eeb8051050839270e757de90d14..0000000000000000000000000000000000000000
--- a/conversations/conv_055868.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.091604392375405,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-80189.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4519-6171.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8494-244431.flac |",
-      "real_speaker_id": "8494",
-      "position_frames": 92682
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "real_speaker_id": "4519",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1252-134983.flac |",
-      "real_speaker_id": "1252",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055872.json b/conversations/conv_055872.json
deleted file mode 100644
index 69a66378b7400fcc1d3c606e8d9616140f9e1917..0000000000000000000000000000000000000000
--- a/conversations/conv_055872.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "8422-258258",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258258.flac |",
-      "real_speaker_id": "8422",
-      "position_frames": 0
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-    {
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8422-258259",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8422-258259.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": "8422"
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-      "duration": 1.16,
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-      "speaker_id": "8422"
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-      "event_class": "laugh",
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-      "duration": 1.48,
-      "start_time": 30.52,
-      "speaker_id": "8312"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055879.json b/conversations/conv_055879.json
deleted file mode 100644
index bf835a9db0cac5a5043a9df7eb8eae7dd2868d7f..0000000000000000000000000000000000000000
--- a/conversations/conv_055879.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "speaker_id": 2,
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-      "utterance_id": "7556-103536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-103536.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 3.682486748528059,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
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-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-1315.flac |",
-      "real_speaker_id": "6281",
-      "position_frames": 49214
-    },
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-      "speaker_id": 1,
-      "start_time": 21.006954472887156,
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-      "utterance_id": "7046-83701",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7046-83701.flac |",
-      "real_speaker_id": "7046",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.59132226290749,
-      "end_time": 29.088466108017514,
-      "duration": 3.4971438451100254,
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-      "overlap": false,
-      "utterance_id": "7556-103536",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7556-103536.flac |",
-      "real_speaker_id": "7556",
-      "position_frames": 58616
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 29.499185860165014,
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-      "utterance_id": "6281-65531",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6281-65531.flac |",
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-  "foreground_events": [
-    {
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\ No newline at end of file
diff --git a/conversations/conv_055880.json b/conversations/conv_055880.json
deleted file mode 100644
index 537850eb715097f34849f6b9eaa349a86843ca70..0000000000000000000000000000000000000000
--- a/conversations/conv_055880.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-48603.flac |",
-      "real_speaker_id": "5929",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39655.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 0
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-    {
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-      "start_time": 23.347923113779427,
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-      "utterance_id": "5929-57805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5929-57805.flac |",
-      "real_speaker_id": "5929",
-      "position_frames": 91718
-    },
-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6418-39655.flac |",
-      "real_speaker_id": "6418",
-      "position_frames": 50769
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
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-  "paralinguistic_events": [
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-      "duration": 1.24,
-      "start_time": 11.689484474771394,
-      "speaker_id": "6418"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055887.json b/conversations/conv_055887.json
deleted file mode 100644
index 912a7876aeeae6a71dd71693b73dc28561e8b970..0000000000000000000000000000000000000000
--- a/conversations/conv_055887.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.42857142857142855,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90852.flac |",
-      "real_speaker_id": "7241",
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-    {
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-      "real_speaker_id": "1859",
-      "position_frames": 0
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-    {
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7241-90850.flac |",
-      "real_speaker_id": "7241",
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-      "real_speaker_id": "1859",
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-    {
-      "segment_id": "seg0006",
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-  ],
-  "background_events": [
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6104/laugh/0010.wav",
-      "duration": 1.24,
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-      "duration": 1.24,
-      "start_time": 24.350439505173366,
-      "speaker_id": "1859"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055891.json b/conversations/conv_055891.json
deleted file mode 100644
index 85007f5fc13ef5eba87a6161a8fd44050c4d1cae..0000000000000000000000000000000000000000
--- a/conversations/conv_055891.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/551-129024.flac |",
-      "real_speaker_id": "551",
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-      "start_time": 25.65086896029462,
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-      "utterance_id": "2671-157948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2671-157948.flac |",
-      "real_speaker_id": "2671",
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-      "segment_id": "seg0006",
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/427113_0.wav",
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-      "event_class": "cough",
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-      "speaker_id": "2671"
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-}
\ No newline at end of file
diff --git a/conversations/conv_055896.json b/conversations/conv_055896.json
deleted file mode 100644
index 22c60736948c98e4fc5e7a5a5785d37c5ddd0a87..0000000000000000000000000000000000000000
--- a/conversations/conv_055896.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.483175567742816,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.859029399411006,
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-      "start_frame": 0,
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-      "overlap": false,
-      "utterance_id": "7008-34652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7008-34652.flac |",
-      "real_speaker_id": "7008",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6689-64264.flac |",
-      "real_speaker_id": "6689",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "utterance_id": "1804-131525",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1804-131525.flac |",
-      "real_speaker_id": "1804",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 19.1400111212308,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7008-34652.flac |",
-      "real_speaker_id": "7008",
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-      "segment_id": "seg0004",
-      "speaker_id": 0,
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-      "utterance_id": "1804-170447",
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-      "real_speaker_id": "1804",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 30.46076942803068,
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-      "utterance_id": "7008-34652",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7008-34652.flac |",
-      "real_speaker_id": "7008",
-      "position_frames": 174428
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-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055901.json b/conversations/conv_055901.json
deleted file mode 100644
index 749fad2f2edaf1c241c8141976ba4db2e51f1235..0000000000000000000000000000000000000000
--- a/conversations/conv_055901.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.091070695575432,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1485-121385.flac |",
-      "real_speaker_id": "1485",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/263-121311.flac |",
-      "real_speaker_id": "263",
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "1495-138027",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1495-138027.flac |",
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "263",
-      "position_frames": 0
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-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-      "duration": 0.92,
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-}
\ No newline at end of file
diff --git a/conversations/conv_055917.json b/conversations/conv_055917.json
deleted file mode 100644
index 46134e93bef9b2da87724dbbaa9ad889fbb86aa1..0000000000000000000000000000000000000000
--- a/conversations/conv_055917.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.3783831332949,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7609-39979",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7609-39979.flac |",
-      "real_speaker_id": "7609",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3448-5417.flac |",
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-      "segment_id": "seg0002",
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-    },
-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "3448",
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-    {
-      "segment_id": "seg0004",
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-    {
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-      "utterance_id": "3448-5416",
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-      "real_speaker_id": "3448",
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-  "foreground_events": [
-    {
-      "event_class": "Dog",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055921.json b/conversations/conv_055921.json
deleted file mode 100644
index c6646cbc212a768e805c6a8adf29c4902eb1752c..0000000000000000000000000000000000000000
--- a/conversations/conv_055921.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "335-125941",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125941.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "utterance_id": "4156-12159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12159.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 0
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-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 12.092462782219407,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/698-123197.flac |",
-      "real_speaker_id": "698",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12159.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 57137
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.11001204773355,
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-      "utterance_id": "335-125945",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/335-125945.flac |",
-      "real_speaker_id": "335",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.819425399330864,
-      "end_time": 32.0,
-      "duration": 1.1805746006691358,
-      "start_frame": 493110,
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-      "utterance_id": "4156-12159",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4156-12159.flac |",
-      "real_speaker_id": "4156",
-      "position_frames": 161401
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/366510.wav",
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-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/335/laugh/0065.wav",
-      "duration": 1.44,
-      "start_time": 6.47806725223382,
-      "speaker_id": "335"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/335/laugh/0019.wav",
-      "duration": 0.8560189303502272,
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-      "speaker_id": "335"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055937.json b/conversations/conv_055937.json
deleted file mode 100644
index d86ec127b4c9876709a9d1c96fd193c66ae86647..0000000000000000000000000000000000000000
--- a/conversations/conv_055937.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.290845359495506,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.3885101209724096,
-      "duration": 3.3885101209724096,
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-      "overlap": false,
-      "utterance_id": "1851-151817",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-151817.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 3.9348593506446807,
-      "end_time": 8.67473911855974,
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-      "start_frame": 62957,
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-      "overlap": false,
-      "utterance_id": "8419-286676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-286676.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 9.511055834919555,
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-      "overlap": false,
-      "utterance_id": "1851-148312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148312.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 14.901579783475674,
-      "end_time": 21.328696647689306,
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-      "utterance_id": "6965-291718",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-291718.flac |",
-      "real_speaker_id": "6965",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.60627191247019,
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-      "utterance_id": "1851-148312",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1851-148312.flac |",
-      "real_speaker_id": "1851",
-      "position_frames": 77462
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.09818802476535,
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-      "duration": 4.192657334730157,
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-      "utterance_id": "8419-286676",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8419-286676.flac |",
-      "real_speaker_id": "8419",
-      "position_frames": 75838
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/152533.wav",
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-  "paralinguistic_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055940.json b/conversations/conv_055940.json
deleted file mode 100644
index b4b4d971c74b32afc2b950048021e85b17f0d6e6..0000000000000000000000000000000000000000
--- a/conversations/conv_055940.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.301096244624592,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "7833-102239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 0
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-      "utterance_id": "263-121285",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/263-121285.flac |",
-      "real_speaker_id": "263",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.75936157964798,
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-      "utterance_id": "7833-102239",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102239.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 77927
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.37042032458892,
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-      "utterance_id": "7833-102238",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7833-102238.flac |",
-      "real_speaker_id": "7833",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/353-128309.flac |",
-      "real_speaker_id": "353",
-      "position_frames": 86437
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
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-      "duration": 1.16,
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055941.json b/conversations/conv_055941.json
deleted file mode 100644
index 8471444f402981d1f97614b2f29b4974cac0e91d..0000000000000000000000000000000000000000
--- a/conversations/conv_055941.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "5840-54188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54188.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
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-      "utterance_id": "6676-275138",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-275138.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.71231632554815,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4846-18524.flac |",
-      "real_speaker_id": "4846",
-      "position_frames": 72214
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.559860020235316,
-      "end_time": 27.161069875516173,
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-      "duration_frames": 73619,
-      "overlap": false,
-      "utterance_id": "5840-54193",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5840-54193.flac |",
-      "real_speaker_id": "5840",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6676-275138.flac |",
-      "real_speaker_id": "6676",
-      "position_frames": 76506
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/54062.wav",
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-}
\ No newline at end of file
diff --git a/conversations/conv_055951.json b/conversations/conv_055951.json
deleted file mode 100644
index 6026f112df07ffa0e31e7a85354f3abc3835e199..0000000000000000000000000000000000000000
--- a/conversations/conv_055951.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "overlap": false,
-      "utterance_id": "1756-134819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134819.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.819469761162832,
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-      "utterance_id": "8272-279781",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279781.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 9.915329949828594,
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-      "utterance_id": "1756-134819",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1756-134819.flac |",
-      "real_speaker_id": "1756",
-      "position_frames": 88951
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-    {
-      "segment_id": "seg0003",
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-      "position_frames": 140868
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-      "utterance_id": "1263-141777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1263-141777.flac |",
-      "real_speaker_id": "1263",
-      "position_frames": 0
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-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.118043107146068,
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-      "duration": 5.881956892853932,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8272-279789.flac |",
-      "real_speaker_id": "8272",
-      "position_frames": 0
-    }
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-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/189735.wav",
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-      "event_class": "Vacuum_cleaner",
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-      "speaker_id": "1756"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055956.json b/conversations/conv_055956.json
deleted file mode 100644
index 5315b6e701d6b81f2c270105b6b70a4d7923b507..0000000000000000000000000000000000000000
--- a/conversations/conv_055956.json
+++ /dev/null
@@ -1,144 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 1,
-      "start_time": 0.0,
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-      "utterance_id": "1579-128131",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128131.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.423780075192916,
-      "end_time": 11.938986360023641,
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-      "utterance_id": "753-150477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-150477.flac |",
-      "real_speaker_id": "753",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
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-      "utterance_id": "1579-128155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128155.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 18.56247330378845,
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-      "duration": 5.229394925217068,
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-      "overlap": false,
-      "utterance_id": "1579-128155",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1579-128155.flac |",
-      "real_speaker_id": "1579",
-      "position_frames": 78541
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 24.30501686873569,
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-      "duration": 4.035671586011378,
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-      "overlap": false,
-      "utterance_id": "3240-131231",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3240-131231.flac |",
-      "real_speaker_id": "3240",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.602102246751215,
-      "end_time": 32.0,
-      "duration": 3.3978977532487846,
-      "start_frame": 457633,
-      "duration_frames": 54366,
-      "overlap": false,
-      "utterance_id": "753-150477",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/753-150477.flac |",
-      "real_speaker_id": "753",
-      "position_frames": 72243
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/591.wav",
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-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
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-      "event_class": "Dishes",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/1579/laugh/0025.wav",
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-      "start_time": 6.0045496360985755,
-      "speaker_id": "753"
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-      "event_class": "cough",
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-      "start_time": 23.793128656100574,
-      "speaker_id": "1579"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055960.json b/conversations/conv_055960.json
deleted file mode 100644
index cac7411cfdbaa0d48206dc95abd722bf0061fac5..0000000000000000000000000000000000000000
--- a/conversations/conv_055960.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "6499-87508",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-87508.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2288-139949.flac |",
-      "real_speaker_id": "2288",
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
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-      "start_time": 18.89835275725121,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6499-57667.flac |",
-      "real_speaker_id": "6499",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 25.832254653039655,
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-      "utterance_id": "2288-155711",
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-      "real_speaker_id": "2288",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "duration": 2.6301110971349004,
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-      "duration_frames": 42081,
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-      "utterance_id": "6875-76999",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6875-76999.flac |",
-      "real_speaker_id": "6875",
-      "position_frames": 86830
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/213889_0.wav",
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-      "event_class": "Frying",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "cough",
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-      "speaker_id": "6875"
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-    {
-      "event_class": "laugh",
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-      "duration": 1.28,
-      "start_time": 17.35593312211785,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2288/laugh/0105.wav",
-      "duration": 1.08,
-      "start_time": 26.525924666553376,
-      "speaker_id": "2288"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055976.json b/conversations/conv_055976.json
deleted file mode 100644
index b20abe2bb95ee61191abb1c6e82ae7b51c65936b..0000000000000000000000000000000000000000
--- a/conversations/conv_055976.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 0,
-      "start_time": 0.0,
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-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "5506",
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-    {
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-      "utterance_id": "8684-293663",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8684-293663.flac |",
-      "real_speaker_id": "8684",
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-    {
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-      "real_speaker_id": "5506",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "start_time": 20.909325299537947,
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-      "real_speaker_id": "8684",
-      "position_frames": 133294
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "utterance_id": "4063-12915",
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-      "real_speaker_id": "4063",
-      "position_frames": 0
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-  ],
-  "background_events": [
-    {
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-  "paralinguistic_events": [
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-    {
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-      "duration": 1.52,
-      "start_time": 22.06671516824957,
-      "speaker_id": "8684"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055983.json b/conversations/conv_055983.json
deleted file mode 100644
index 1078e4c8fe0d3af09685fdaf999e7facc52b7350..0000000000000000000000000000000000000000
--- a/conversations/conv_055983.json
+++ /dev/null
@@ -1,186 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.59957796404366,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "1780-143478",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1780-143478.flac |",
-      "real_speaker_id": "1780",
-      "position_frames": 0
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-  "background_events": [
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-      "start_time": 0,
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\ No newline at end of file
diff --git a/conversations/conv_055984.json b/conversations/conv_055984.json
deleted file mode 100644
index 2a28321f0cdaffc40c5d651430e522fa015c9bd1..0000000000000000000000000000000000000000
--- a/conversations/conv_055984.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1430-139231.flac |",
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-      "real_speaker_id": "7131",
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\ No newline at end of file
diff --git a/conversations/conv_055992.json b/conversations/conv_055992.json
deleted file mode 100644
index 290337b1bdccfedfbb04c4e2025132c1ef68429e..0000000000000000000000000000000000000000
--- a/conversations/conv_055992.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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-      "real_speaker_id": "6032",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6032-56222.flac |",
-      "real_speaker_id": "6032",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
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-      "duration": 2.3744129394045075,
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-      "utterance_id": "7679-113325",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7679-113325.flac |",
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-      "position_frames": 0
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-  "background_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_055995.json b/conversations/conv_055995.json
deleted file mode 100644
index 6491ab065792f44d44ab6e64bbb0615ea491c4bb..0000000000000000000000000000000000000000
--- a/conversations/conv_055995.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.676285378550794,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "951-122301",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
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-    },
-    {
-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "utterance_id": "2437-153219",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/951-122301.flac |",
-      "real_speaker_id": "951",
-      "position_frames": 69516
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
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-      "event_class": "Blender",
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-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
-      "duration": 0.4961451247165533,
-      "start_time": 7.875740292291177
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/951/cough/0006.wav",
-      "duration": 1.309617351693297,
-      "start_time": 4.389502105099542,
-      "speaker_id": "951"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/951/cough/0022.wav",
-      "duration": 1.0,
-      "start_time": 21.294659530249515,
-      "speaker_id": "951"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_055999.json b/conversations/conv_055999.json
deleted file mode 100644
index 4deec96546d12e8af010c90b6b530c87645d9ac7..0000000000000000000000000000000000000000
--- a/conversations/conv_055999.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.5,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.626311834886655,
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-      "overlap": false,
-      "utterance_id": "1665-136991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 7.495442496098932,
-      "end_time": 10.654160654405239,
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-      "overlap": false,
-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.40446208425097,
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-      "duration_frames": 65610,
-      "overlap": true,
-      "utterance_id": "3638-696",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3638-696.flac |",
-      "real_speaker_id": "3638",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 15.42836569045629,
-      "end_time": 20.965987406586066,
-      "duration": 5.537621716129774,
-      "start_frame": 246853,
-      "duration_frames": 88601,
-      "overlap": true,
-      "utterance_id": "1665-132826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-132826.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 21.629352587313505,
-      "end_time": 26.900628174201096,
-      "duration": 5.271275586887592,
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-      "utterance_id": "7367-86737",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7367-86737.flac |",
-      "real_speaker_id": "7367",
-      "position_frames": 50539
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.875595749424082,
-      "end_time": 32.0,
-      "duration": 4.1244042505759175,
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-      "duration_frames": 65990,
-      "overlap": false,
-      "utterance_id": "1665-136991",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1665-136991.flac |",
-      "real_speaker_id": "1665",
-      "position_frames": 106020
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/165106.wav",
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-      "event_class": "Dog",
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3638/cough/0031.wav",
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-      "start_time": 14.539893996068281,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/7367/laugh/0057.wav",
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-      "event_class": "cough",
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-      "duration": 0.92,
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-      "speaker_id": "7367"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056004.json b/conversations/conv_056004.json
deleted file mode 100644
index 5ed0cb628b2904409d5212a096fafb11ba069d71..0000000000000000000000000000000000000000
--- a/conversations/conv_056004.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "7278-91083",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-91083.flac |",
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-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-134780.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2042-134780.flac |",
-      "real_speaker_id": "2042",
-      "position_frames": 63805
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.185818956144768,
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-      "overlap": false,
-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 22.42316069225704,
-      "end_time": 28.53101971569746,
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-      "duration_frames": 97725,
-      "overlap": false,
-      "utterance_id": "7278-246956",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7278-246956.flac |",
-      "real_speaker_id": "7278",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.391942178159393,
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-      "duration": 2.6080578218406067,
-      "start_frame": 470271,
-      "duration_frames": 41728,
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-      "utterance_id": "7647-102250",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7647-102250.flac |",
-      "real_speaker_id": "7647",
-      "position_frames": 95845
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Blender/158737_2.wav",
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-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_056005.json b/conversations/conv_056005.json
deleted file mode 100644
index d468b60f5abb0cae98dd4669c9418118f2a1eb3a..0000000000000000000000000000000000000000
--- a/conversations/conv_056005.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "utterance_id": "2910-131096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2910-131096.flac |",
-      "real_speaker_id": "2910",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 8.072060870649837,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171006.flac |",
-      "real_speaker_id": "3440",
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8580-287364",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8580-287364.flac |",
-      "real_speaker_id": "8580",
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3440-171009.flac |",
-      "real_speaker_id": "3440",
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-    {
-      "segment_id": "seg0004",
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-      "duration_frames": 60069,
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-      "utterance_id": "2910-131096",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2910-131096.flac |",
-      "real_speaker_id": "2910",
-      "position_frames": 111613
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
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-      "overlap": false,
-      "utterance_id": "3440-171006",
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-      "real_speaker_id": "3440",
-      "position_frames": 51080
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/3440/laugh/0101.wav",
-      "duration": 1.16,
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-}
\ No newline at end of file
diff --git a/conversations/conv_056008.json b/conversations/conv_056008.json
deleted file mode 100644
index 0dd9bb998f00763e7ea8328772f51f2950e61b7f..0000000000000000000000000000000000000000
--- a/conversations/conv_056008.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 4.329229046340956,
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-      "utterance_id": "6254-61725",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6254-61725.flac |",
-      "real_speaker_id": "6254",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 5.049610279667168,
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-      "utterance_id": "5712-48842",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5712-48842.flac |",
-      "real_speaker_id": "5712",
-      "position_frames": 0
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-      "segment_id": "seg0002",
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-      "position_frames": 78605
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-    {
-      "segment_id": "seg0003",
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-      "real_speaker_id": "229",
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-    {
-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6254-61739.flac |",
-      "real_speaker_id": "6254",
-      "position_frames": 0
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Electric_shaver_toothbrush",
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-      "speaker_id": "6254"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056012.json b/conversations/conv_056012.json
deleted file mode 100644
index c316981117cd6f4731be7e9a826c7df383d7d425..0000000000000000000000000000000000000000
--- a/conversations/conv_056012.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.0537229191276,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8825-292252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292252.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "start_time": 4.2643462256831315,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71402.flac |",
-      "real_speaker_id": "6701",
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-      "overlap": true,
-      "utterance_id": "3482-170452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3482-170452.flac |",
-      "real_speaker_id": "3482",
-      "position_frames": 0
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-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 14.880480563245222,
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-      "duration_frames": 69927,
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-      "utterance_id": "6701-71404",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6701-71404.flac |",
-      "real_speaker_id": "6701",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 19.511206149833832,
-      "end_time": 25.51056982592032,
-      "duration": 5.999363676086491,
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-      "overlap": false,
-      "utterance_id": "3482-170452",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3482-170452.flac |",
-      "real_speaker_id": "3482",
-      "position_frames": 91386
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 25.75839434914249,
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-      "duration": 5.295328569985114,
-      "start_frame": 412134,
-      "duration_frames": 84725,
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-      "utterance_id": "8825-292252",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8825-292252.flac |",
-      "real_speaker_id": "8825",
-      "position_frames": 65463
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_3.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/8825/laugh/0080.wav",
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-      "speaker_id": "8825"
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-}
\ No newline at end of file
diff --git a/conversations/conv_056024.json b/conversations/conv_056024.json
deleted file mode 100644
index 6a7a4b39449a95063f68afda43959db3de9e4ae9..0000000000000000000000000000000000000000
--- a/conversations/conv_056024.json
+++ /dev/null
@@ -1,179 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.60225869600572,
-  "num_speakers": 2,
-  "overlap_rate": 0.2857142857142857,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
-      "position_frames": 0
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-      "real_speaker_id": "8705",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
-      "real_speaker_id": "8322",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8322-276748.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8705-290363.flac |",
-      "real_speaker_id": "8705",
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-      "real_speaker_id": "8322",
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-      "segment_id": "seg0006",
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-  "paralinguistic_events": [
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-      "start_time": 0,
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-      "speaker_id": "8322"
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
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-      "speaker_id": "8705"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056028.json b/conversations/conv_056028.json
deleted file mode 100644
index 9b682ba14011cebf4423dd8c9cb36ad048e1ca39..0000000000000000000000000000000000000000
--- a/conversations/conv_056028.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "utterance_id": "7594-91192",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7594-91192.flac |",
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-      "position_frames": 0
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-      "real_speaker_id": "1828",
-      "position_frames": 80001
-    },
-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "7594-101832",
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-      "real_speaker_id": "7594",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "duration_frames": 52315,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1828-141203.flac |",
-      "real_speaker_id": "1828",
-      "position_frames": 162039
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-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
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-    {
-      "event_class": "cough",
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-    {
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-      "start_time": 15.338163416268323,
-      "speaker_id": "1828"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056032.json b/conversations/conv_056032.json
deleted file mode 100644
index bb7b338a53f64a8ee05a2d542ae93d8dd0ae7b8e..0000000000000000000000000000000000000000
--- a/conversations/conv_056032.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/70-121130.flac |",
-      "real_speaker_id": "70",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/667-158816.flac |",
-      "real_speaker_id": "667",
-      "position_frames": 0
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-      "segment_id": "seg0005",
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-      "event_class": "Blender",
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-      "speaker_id": "70"
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\ No newline at end of file
diff --git a/conversations/conv_056039.json b/conversations/conv_056039.json
deleted file mode 100644
index 2f72b1a7c765c01f0e60df765c122afd5c326a6e..0000000000000000000000000000000000000000
--- a/conversations/conv_056039.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.564422563958313,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "overlap": false,
-      "utterance_id": "6950-86823",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6950-86823.flac |",
-      "real_speaker_id": "6950",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 6.284159858417707,
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-      "real_speaker_id": "2182",
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\ No newline at end of file
diff --git a/conversations/conv_056045.json b/conversations/conv_056045.json
deleted file mode 100644
index 148ea335c53cb4ee808dd02b0ed702f69d17e260..0000000000000000000000000000000000000000
--- a/conversations/conv_056045.json
+++ /dev/null
@@ -1,116 +0,0 @@
-{
-  "num_segments": 6,
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-  "num_speakers": 3,
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-      "real_speaker_id": "3318",
-      "position_frames": 0
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-      "real_speaker_id": "3318",
-      "position_frames": 88476
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-  "background_events": [],
-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_056049.json b/conversations/conv_056049.json
deleted file mode 100644
index 7378b16c3e1bc41465c19627fde147de0879c0e5..0000000000000000000000000000000000000000
--- a/conversations/conv_056049.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.578863621147796,
-  "num_speakers": 3,
-  "overlap_rate": 0.2857142857142857,
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-      "real_speaker_id": "7046",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3215-5764.flac |",
-      "real_speaker_id": "3215",
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-}
\ No newline at end of file
diff --git a/conversations/conv_056052.json b/conversations/conv_056052.json
deleted file mode 100644
index 53f4218d7ee624cb9844147bab95a42ece0e5b37..0000000000000000000000000000000000000000
--- a/conversations/conv_056052.json
+++ /dev/null
@@ -1,152 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 4.455245194918115,
-      "duration": 4.455245194918115,
-      "start_frame": 0,
-      "duration_frames": 71283,
-      "overlap": false,
-      "utterance_id": "6965-277898",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-277898.flac |",
-      "real_speaker_id": "6965",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 5.389098765865051,
-      "end_time": 10.818603197650969,
-      "duration": 5.429504431785918,
-      "start_frame": 86225,
-      "duration_frames": 86872,
-      "overlap": false,
-      "utterance_id": "6127-53038",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-53038.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 11.95641350516944,
-      "end_time": 15.755091223881273,
-      "duration": 3.798677718711832,
-      "start_frame": 191302,
-      "duration_frames": 60778,
-      "overlap": false,
-      "utterance_id": "6965-277899",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6965-277899.flac |",
-      "real_speaker_id": "6965",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 16.202561389086135,
-      "end_time": 22.07876280570995,
-      "duration": 5.876201416623813,
-      "start_frame": 259240,
-      "duration_frames": 94019,
-      "overlap": false,
-      "utterance_id": "4955-28245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28245.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.15585796493614,
-      "end_time": 28.476998272141323,
-      "duration": 5.321140307205182,
-      "start_frame": 370493,
-      "duration_frames": 85138,
-      "overlap": false,
-      "utterance_id": "4955-28244",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4955-28244.flac |",
-      "real_speaker_id": "4955",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 29.3855704247163,
-      "end_time": 32.0,
-      "duration": 2.614429575283701,
-      "start_frame": 470169,
-      "duration_frames": 41830,
-      "overlap": false,
-      "utterance_id": "6127-14967",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6127-14967.flac |",
-      "real_speaker_id": "6127",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/588_1.wav",
-      "duration": 12.274421768707484,
-      "start_time": 7.9900166131302095
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/380156_3.wav",
-      "duration": 1.104937927195461,
-      "start_time": 22.250828727281394
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/laugh/0057.wav",
-      "duration": 0.6638058635208918,
-      "start_time": 6.240374223821877,
-      "speaker_id": "6127"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6965/cough/0021.wav",
-      "duration": 1.2,
-      "start_time": 11.967372216680266,
-      "speaker_id": "6965"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/cough/0036.wav",
-      "duration": 1.28,
-      "start_time": 22.163309211070377,
-      "speaker_id": "4955"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/laugh/0061.wav",
-      "duration": 1.016910586447614,
-      "start_time": 28.65658866836331,
-      "speaker_id": "4955"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4955/cough/0045.wav",
-      "duration": 0.7495940419239024,
-      "start_time": 28.50728506735922,
-      "speaker_id": "4955"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6127/cough/0000.wav",
-      "duration": 1.4147450790193157,
-      "start_time": 27.79620424762082,
-      "speaker_id": "6127"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056053.json b/conversations/conv_056053.json
deleted file mode 100644
index 6e89c15bdd3d50d95ae8c53b26f882bd37915ea3..0000000000000000000000000000000000000000
--- a/conversations/conv_056053.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 6.514460609815179,
-      "duration": 6.514460609815179,
-      "start_frame": 0,
-      "duration_frames": 104231,
-      "overlap": false,
-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 7.3683541692967625,
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-      "duration": 6.221268563826646,
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-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 14.04460189599622,
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-      "duration": 3.128360306192261,
-      "start_frame": 224713,
-      "duration_frames": 50053,
-      "overlap": false,
-      "utterance_id": "5653-46179",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46179.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 99540
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.59630954619014,
-      "end_time": 20.941876883407936,
-      "duration": 3.3455673372177923,
-      "start_frame": 281540,
-      "duration_frames": 53529,
-      "overlap": false,
-      "utterance_id": "3379-132601",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132601.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 21.644083760554828,
-      "end_time": 25.491158685443576,
-      "duration": 3.847074924888748,
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-      "duration_frames": 61553,
-      "overlap": false,
-      "utterance_id": "5653-46266",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5653-46266.flac |",
-      "real_speaker_id": "5653",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.31619986841132,
-      "end_time": 29.367305915991356,
-      "duration": 3.0511060475800362,
-      "start_frame": 421059,
-      "duration_frames": 48817,
-      "overlap": false,
-      "utterance_id": "3379-132592",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3379-132592.flac |",
-      "real_speaker_id": "3379",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 30.081150475117674,
-      "end_time": 32.0,
-      "duration": 1.9188495248823259,
-      "start_frame": 481298,
-      "duration_frames": 30701,
-      "overlap": false,
-      "utterance_id": "2654-158744",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2654-158744.flac |",
-      "real_speaker_id": "2654",
-      "position_frames": 104231
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/329896_3.wav",
-      "duration": 0.5554648526077097,
-      "start_time": 1.0561125024518856
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-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/352272.wav",
-      "duration": 3.929528560678508,
-      "start_time": 23.838368472412558
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5653/laugh/0022.wav",
-      "duration": 0.7468375996470404,
-      "start_time": 17.180093868493298,
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/3379/laugh/0066.wav",
-      "duration": 1.4597131863900015,
-      "start_time": 18.307627895683627,
-      "speaker_id": "3379"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056065.json b/conversations/conv_056065.json
deleted file mode 100644
index 3f174b27efc6cb224faf2a040d84c21d913a003d..0000000000000000000000000000000000000000
--- a/conversations/conv_056065.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "overlap": false,
-      "utterance_id": "8266-258262",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-258262.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
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-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "utterance_id": "8266-279363",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8266-279363.flac |",
-      "real_speaker_id": "8266",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
-      "start_time": 16.12019184621439,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2348-143895.flac |",
-      "real_speaker_id": "2348",
-      "position_frames": 78092
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "8266-258263",
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-      "real_speaker_id": "8266",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
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-      "overlap": false,
-      "utterance_id": "5993-19685",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5993-19685.flac |",
-      "real_speaker_id": "5993",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59326.wav",
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-  "foreground_events": [
-    {
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-  "paralinguistic_events": [
-    {
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-    {
-      "event_class": "laugh",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5993/laugh/0087.wav",
-      "duration": 1.1,
-      "start_time": 30.22416313553655,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5993/cough/0013.wav",
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-      "start_time": 31.16,
-      "speaker_id": "5993"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056069.json b/conversations/conv_056069.json
deleted file mode 100644
index c4c7878cc7b2de6b8f8a478219bfdd88f4b1b3b3..0000000000000000000000000000000000000000
--- a/conversations/conv_056069.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "6138-93188",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93188.flac |",
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-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
-      "real_speaker_id": "6138",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6138-93186.flac |",
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-    {
-      "segment_id": "seg0004",
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\ No newline at end of file
diff --git a/conversations/conv_056073.json b/conversations/conv_056073.json
deleted file mode 100644
index 9478e017f06b181fb22bef563644628736a4742f..0000000000000000000000000000000000000000
--- a/conversations/conv_056073.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.067624923951342,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "real_speaker_id": "8527",
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-      "position_frames": 0
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-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-  "foreground_events": [
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\ No newline at end of file
diff --git a/conversations/conv_056078.json b/conversations/conv_056078.json
deleted file mode 100644
index a826b9e5ebbb0edce900e4df20b5f6584b205bb0..0000000000000000000000000000000000000000
--- a/conversations/conv_056078.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_056081.json b/conversations/conv_056081.json
deleted file mode 100644
index baff4518735e76af866ce252009da9bd41e626fb..0000000000000000000000000000000000000000
--- a/conversations/conv_056081.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_056086.json b/conversations/conv_056086.json
deleted file mode 100644
index 1e9e19ccaf4435ac75747565baac21534eb399e0..0000000000000000000000000000000000000000
--- a/conversations/conv_056086.json
+++ /dev/null
@@ -1,166 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 167357
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-  "background_events": [],
-  "foreground_events": [
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-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Vacuum_cleaner/146200_1.wav",
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-  "paralinguistic_events": [
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-      "speaker_id": "4214"
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-}
\ No newline at end of file
diff --git a/conversations/conv_056090.json b/conversations/conv_056090.json
deleted file mode 100644
index 1c5f858a63d33045d4bd22612f8db2bfd089a019..0000000000000000000000000000000000000000
--- a/conversations/conv_056090.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.748342424135743,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "utterance_id": "5266-34501",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-34501.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 0
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-      "speaker_id": 2,
-      "start_time": 6.357863650765566,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258960.flac |",
-      "real_speaker_id": "7994",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
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-      "utterance_id": "705-167610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/705-167610.flac |",
-      "real_speaker_id": "705",
-      "position_frames": 0
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-      "speaker_id": 2,
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-      "utterance_id": "7994-258960",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258960.flac |",
-      "real_speaker_id": "7994",
-      "position_frames": 75213
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-      "segment_id": "seg0005",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5266-41151.flac |",
-      "real_speaker_id": "5266",
-      "position_frames": 72505
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 2,
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-      "utterance_id": "7994-258959",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7994-258959.flac |",
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-      "position_frames": 0
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-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/59327.wav",
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\ No newline at end of file
diff --git a/conversations/conv_056097.json b/conversations/conv_056097.json
deleted file mode 100644
index 90d2d6a2e5aba098129b1bb4292f7b16e3c51b50..0000000000000000000000000000000000000000
--- a/conversations/conv_056097.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.79907326475636,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "utterance_id": "6269-66176",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66176.flac |",
-      "real_speaker_id": "6269",
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-      "real_speaker_id": "5975",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0003",
-      "speaker_id": 1,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6269-66176.flac |",
-      "real_speaker_id": "6269",
-      "position_frames": 101706
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 22.373825087888648,
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-      "utterance_id": "5618-48831",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5618-48831.flac |",
-      "real_speaker_id": "5618",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 26.71029320306534,
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-      "duration_frames": 81420,
-      "overlap": true,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5975-54006.flac |",
-      "real_speaker_id": "5975",
-      "position_frames": 57591
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-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-    {
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-      "speaker_id": "5975"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056100.json b/conversations/conv_056100.json
deleted file mode 100644
index e0caee67221a3fb5ffd3ce3be3b8ab828b16afc7..0000000000000000000000000000000000000000
--- a/conversations/conv_056100.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
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-      "utterance_id": "3072-155948",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155948.flac |",
-      "real_speaker_id": "3072",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-187735.flac |",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3072-155948.flac |",
-      "real_speaker_id": "3072",
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-      "segment_id": "seg0003",
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-      "real_speaker_id": "1280",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0004",
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-      "utterance_id": "4234-187750",
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-      "real_speaker_id": "4234",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.68802738459154,
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-      "duration": 1.311972615408461,
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-      "utterance_id": "4234-187750",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4234-187750.flac |",
-      "real_speaker_id": "4234",
-      "position_frames": 88996
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-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Electric_shaver_toothbrush/35021_1.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/4234/laugh/0066.wav",
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-      "start_time": 5.19647028619406,
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-    {
-      "event_class": "cough",
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-}
\ No newline at end of file
diff --git a/conversations/conv_056116.json b/conversations/conv_056116.json
deleted file mode 100644
index 9d8725bf439f8845036ba5c63ad5b7e917e060b6..0000000000000000000000000000000000000000
--- a/conversations/conv_056116.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.550622999341645,
-  "num_speakers": 3,
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\ No newline at end of file
diff --git a/conversations/conv_056117.json b/conversations/conv_056117.json
deleted file mode 100644
index 871a9bbc5d4159d66bc32dceb5a45db3a7b1b981..0000000000000000000000000000000000000000
--- a/conversations/conv_056117.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.3996233950934,
-  "num_speakers": 3,
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-      "real_speaker_id": "4305",
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\ No newline at end of file
diff --git a/conversations/conv_056120.json b/conversations/conv_056120.json
deleted file mode 100644
index 4c3ad7f57d0b4f248cc1a244e1c028467daa8695..0000000000000000000000000000000000000000
--- a/conversations/conv_056120.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
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-    {
-      "segment_id": "seg0004",
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-      "position_frames": 76728
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\ No newline at end of file
diff --git a/conversations/conv_056136.json b/conversations/conv_056136.json
deleted file mode 100644
index c7789f509c273d22aa04ac012af51d3a8b854d2f..0000000000000000000000000000000000000000
--- a/conversations/conv_056136.json
+++ /dev/null
@@ -1,123 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-  "foreground_events": [
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-}
\ No newline at end of file
diff --git a/conversations/conv_056140.json b/conversations/conv_056140.json
deleted file mode 100644
index 97d331b2331cc9f4ce4284fb3516f0248fe21fe6..0000000000000000000000000000000000000000
--- a/conversations/conv_056140.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
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\ No newline at end of file
diff --git a/conversations/conv_056141.json b/conversations/conv_056141.json
deleted file mode 100644
index 150214d8a460b56ab0c0ac88b22c0eb008c7eb82..0000000000000000000000000000000000000000
--- a/conversations/conv_056141.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 7,
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\ No newline at end of file
diff --git a/conversations/conv_056157.json b/conversations/conv_056157.json
deleted file mode 100644
index baafe831d841151d1533342ea4ff28f338e51e15..0000000000000000000000000000000000000000
--- a/conversations/conv_056157.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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\ No newline at end of file
diff --git a/conversations/conv_056161.json b/conversations/conv_056161.json
deleted file mode 100644
index 0064f213f0d669798453922c2020457d4b69145f..0000000000000000000000000000000000000000
--- a/conversations/conv_056161.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2401-144485.flac |",
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-}
\ No newline at end of file
diff --git a/conversations/conv_056177.json b/conversations/conv_056177.json
deleted file mode 100644
index f2149fb889b29099f62ebdf9786db4d57baf4b18..0000000000000000000000000000000000000000
--- a/conversations/conv_056177.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 5,
-  "total_duration": 31.956590992130884,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 6.329536690846842,
-      "duration": 6.329536690846842,
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-      "overlap": false,
-      "utterance_id": "5463-39173",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5463-39173.flac |",
-      "real_speaker_id": "5463",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 7.023397118616355,
-      "end_time": 12.34941295001789,
-      "duration": 5.326015831401534,
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-      "duration_frames": 85216,
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-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 0
-    },
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-      "segment_id": "seg0002",
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-      "start_time": 13.865982137050716,
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-      "utterance_id": "5233-28390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28390.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
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-      "utterance_id": "6945-60535",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6945-60535.flac |",
-      "real_speaker_id": "6945",
-      "position_frames": 85216
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 27.346310790703896,
-      "end_time": 31.956590992130884,
-      "duration": 4.61028020142699,
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-      "duration_frames": 73764,
-      "overlap": false,
-      "utterance_id": "5233-28390",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5233-28390.flac |",
-      "real_speaker_id": "5233",
-      "position_frames": 92349
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Vacuum_cleaner",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Vacuum_cleaner/16845.wav",
-      "duration": 12.759365079365079,
-      "start_time": 7.690650116581916
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-  "foreground_events": [
-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/233645_7.wav",
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-      "start_time": 10.217146496472566
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-    {
-      "event_class": "Alarm_bell_ringing",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Alarm_bell_ringing/72558_6.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6945/laugh/0036.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/5233/laugh/0025.wav",
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-      "start_time": 14.403607830580865,
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-    {
-      "event_class": "cough",
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-      "duration": 1.2747969095655818,
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-      "duration": 0.7602468363664199,
-      "start_time": 26.540145501788015,
-      "speaker_id": "5233"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056182.json b/conversations/conv_056182.json
deleted file mode 100644
index 284f4de3758a5070b0a3f705f5f64ba5c49e3c8f..0000000000000000000000000000000000000000
--- a/conversations/conv_056182.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.6355075397295185,
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-      "overlap": false,
-      "utterance_id": "3100-142810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3100-142810.flac |",
-      "real_speaker_id": "3100",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 6.099763307395528,
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-      "utterance_id": "3100-142810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3100-142810.flac |",
-      "real_speaker_id": "3100",
-      "position_frames": 90168
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-    {
-      "segment_id": "seg0002",
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6054-41610.flac |",
-      "real_speaker_id": "6054",
-      "position_frames": 0
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3100-142810.flac |",
-      "real_speaker_id": "3100",
-      "position_frames": 153921
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 2,
-      "start_time": 23.288964269321955,
-      "end_time": 27.101919434671927,
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-      "utterance_id": "6054-41610",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6054-41610.flac |",
-      "real_speaker_id": "6054",
-      "position_frames": 101794
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 27.52993305649845,
-      "end_time": 32.0,
-      "duration": 4.47006694350155,
-      "start_frame": 440478,
-      "duration_frames": 71521,
-      "overlap": false,
-      "utterance_id": "3100-142810",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3100-142810.flac |",
-      "real_speaker_id": "3100",
-      "position_frames": 241546
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-  ],
-  "background_events": [
-    {
-      "event_class": "Electric_shaver_toothbrush",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Electric_shaver_toothbrush/331161.wav",
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-  "foreground_events": [
-    {
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-      "duration": 1.5647845804988663,
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 2.974012628011149,
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-      "duration": 1.2,
-      "start_time": 16.721836447757884,
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/3100/cough/0047.wav",
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-      "speaker_id": "3100"
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-}
\ No newline at end of file
diff --git a/conversations/conv_056185.json b/conversations/conv_056185.json
deleted file mode 100644
index f1a85d4e596913604fae9ea6afcc04187d7d8ad6..0000000000000000000000000000000000000000
--- a/conversations/conv_056185.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
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-      "utterance_id": "2787-157400",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2787-157400.flac |",
-      "real_speaker_id": "2787",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0001",
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-      "real_speaker_id": "8629",
-      "position_frames": 0
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2787-157400.flac |",
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-    {
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2787-157400.flac |",
-      "real_speaker_id": "2787",
-      "position_frames": 146379
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-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
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-      "utterance_id": "8629-261140",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8629-261140.flac |",
-      "real_speaker_id": "8629",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
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-      "real_speaker_id": "2787",
-      "position_frames": 244121
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-  "background_events": [
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-  "foreground_events": [
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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-    {
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-      "event_class": "laugh",
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-      "event_class": "cough",
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-    {
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-      "start_time": 30.68,
-      "speaker_id": "2787"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056193.json b/conversations/conv_056193.json
deleted file mode 100644
index ae92843f5b22e90e08842148019fa9df3eeece32..0000000000000000000000000000000000000000
--- a/conversations/conv_056193.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
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-      "utterance_id": "5700-44605",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5700-44605.flac |",
-      "real_speaker_id": "5700",
-      "position_frames": 0
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-    {
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-    {
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-      "event_class": "Cat",
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-      "duration": 0.96,
-      "start_time": 15.1620301117187,
-      "speaker_id": "5700"
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-      "event_class": "laugh",
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-      "duration": 1.1157766000356528,
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-      "speaker_id": "5700"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056194.json b/conversations/conv_056194.json
deleted file mode 100644
index 02c8ec6494207c1025ddf48cf0a16e277c51d664..0000000000000000000000000000000000000000
--- a/conversations/conv_056194.json
+++ /dev/null
@@ -1,110 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 2,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "speaker_id": 0,
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-      "utterance_id": "7320-287379",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-287379.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.854815904241677,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66120.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
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-    {
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-      "speaker_id": 0,
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-      "overlap": false,
-      "utterance_id": "7320-104988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-104988.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 18.268695137138288,
-      "end_time": 23.392463107484186,
-      "duration": 5.1237679703459,
-      "start_frame": 292299,
-      "duration_frames": 81980,
-      "overlap": false,
-      "utterance_id": "6488-66120",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66120.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 109266
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 23.882694252805795,
-      "end_time": 28.34416104775084,
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-      "duration_frames": 71383,
-      "overlap": false,
-      "utterance_id": "7320-104988",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7320-104988.flac |",
-      "real_speaker_id": "7320",
-      "position_frames": 79915
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 29.00459129367744,
-      "end_time": 32.0,
-      "duration": 2.9954087063225607,
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-      "duration_frames": 47926,
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-      "utterance_id": "6488-66121",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6488-66121.flac |",
-      "real_speaker_id": "6488",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
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-  "paralinguistic_events": [
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-      "event_class": "laugh",
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\ No newline at end of file
diff --git a/conversations/conv_056198.json b/conversations/conv_056198.json
deleted file mode 100644
index 5754b0ac9d9d533110bac877dda045a1554b6fe8..0000000000000000000000000000000000000000
--- a/conversations/conv_056198.json
+++ /dev/null
@@ -1,158 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
-  "segments": [
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-      "start_time": 0.0,
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-      "utterance_id": "8176-115047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8176-115047.flac |",
-      "real_speaker_id": "8176",
-      "position_frames": 0
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-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.1547360774888356,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8176-115046.flac |",
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-      "position_frames": 0
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-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0005",
-      "speaker_id": 1,
-      "start_time": 26.56636386319444,
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-      "overlap": true,
-      "utterance_id": "8176-115047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8176-115047.flac |",
-      "real_speaker_id": "8176",
-      "position_frames": 60778
-    },
-    {
-      "segment_id": "seg0006",
-      "speaker_id": 0,
-      "start_time": 31.02350014642468,
-      "end_time": 32.0,
-      "duration": 0.9764998535753193,
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-      "utterance_id": "625-132118",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/625-132118.flac |",
-      "real_speaker_id": "625",
-      "position_frames": 59798
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-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/71218_1.wav",
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-  "foreground_events": [
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-      "duration": 1.2,
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-      "speaker_id": "625"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056202.json b/conversations/conv_056202.json
deleted file mode 100644
index 520c4ff38c78265fbd8e105a14314cda60bef43b..0000000000000000000000000000000000000000
--- a/conversations/conv_056202.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.089203005327906,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2096-136868.flac |",
-      "real_speaker_id": "2096",
-      "position_frames": 0
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-      "segment_id": "seg0001",
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-      "segment_id": "seg0002",
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-      "position_frames": 70978
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-      "segment_id": "seg0003",
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-      "segment_id": "seg0004",
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-      "real_speaker_id": "3584",
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-    {
-      "segment_id": "seg0005",
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-  "background_events": [],
-  "foreground_events": [
-    {
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-    {
-      "event_class": "laugh",
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-}
\ No newline at end of file
diff --git a/conversations/conv_056205.json b/conversations/conv_056205.json
deleted file mode 100644
index a67ddde56886c001747b5dbf4643ab10cde6a3fc..0000000000000000000000000000000000000000
--- a/conversations/conv_056205.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 7,
-  "total_duration": 31.3856144301963,
-  "num_speakers": 3,
-  "overlap_rate": 0.14285714285714285,
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-      "real_speaker_id": "377",
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-      "utterance_id": "377-129292",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/377-129292.flac |",
-      "real_speaker_id": "377",
-      "position_frames": 51853
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-    {
-      "segment_id": "seg0006",
-      "speaker_id": 1,
-      "start_time": 28.121564083290014,
-      "end_time": 31.3856144301963,
-      "duration": 3.264050346906285,
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-      "utterance_id": "6378-61777",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6378-61777.flac |",
-      "real_speaker_id": "6378",
-      "position_frames": 97342
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Blender",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Blender/170745.wav",
-      "duration": 25.20655328798186,
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-  "foreground_events": [
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-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 4.0222932149547805,
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-  "paralinguistic_events": [
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-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/249/cough/0019.wav",
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-      "start_time": 7.097440433202447,
-      "speaker_id": "249"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6378/laugh/0049.wav",
-      "duration": 1.061705455284108,
-      "start_time": 13.98316361736058,
-      "speaker_id": "6378"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6378/laugh/0097.wav",
-      "duration": 1.28,
-      "start_time": 21.451119625404505,
-      "speaker_id": "6378"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/6378/cough/0029.wav",
-      "duration": 1.24,
-      "start_time": 20.728886679669856,
-      "speaker_id": "6378"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/377/cough/0087.wav",
-      "duration": 1.24,
-      "start_time": 26.363257108360457,
-      "speaker_id": "377"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056209.json b/conversations/conv_056209.json
deleted file mode 100644
index 3f4f511c62f825031b28bc964eb72257defa20ef..0000000000000000000000000000000000000000
--- a/conversations/conv_056209.json
+++ /dev/null
@@ -1,151 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 30.762493858977223,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "segment_id": "seg0000",
-      "speaker_id": 2,
-      "start_time": 0.0,
-      "end_time": 4.496798378357754,
-      "duration": 4.496798378357754,
-      "start_frame": 0,
-      "duration_frames": 71948,
-      "overlap": false,
-      "utterance_id": "4214-7146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.987360727753288,
-      "end_time": 8.212008675377211,
-      "duration": 3.2246479476239234,
-      "start_frame": 79797,
-      "duration_frames": 51594,
-      "overlap": false,
-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 8.707645622070032,
-      "end_time": 14.574709903855684,
-      "duration": 5.867064281785651,
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-      "duration_frames": 93873,
-      "overlap": false,
-      "utterance_id": "8404-282926",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8404-282926.flac |",
-      "real_speaker_id": "8404",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 14.936903371005851,
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-      "duration": 5.209140325705918,
-      "start_frame": 238990,
-      "duration_frames": 83346,
-      "overlap": false,
-      "utterance_id": "5970-54428",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54428.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 20.525120552946255,
-      "end_time": 25.540979297215543,
-      "duration": 5.015858744269289,
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-      "duration_frames": 80253,
-      "overlap": false,
-      "utterance_id": "5970-54413",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/5970-54413.flac |",
-      "real_speaker_id": "5970",
-      "position_frames": 51594
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.211552310401245,
-      "end_time": 30.762493858977223,
-      "duration": 5.550941548575978,
-      "start_frame": 403384,
-      "duration_frames": 88815,
-      "overlap": true,
-      "utterance_id": "4214-7146",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4214-7146.flac |",
-      "real_speaker_id": "4214",
-      "position_frames": 71948
-    }
-  ],
-  "background_events": [
-    {
-      "event_class": "Running_water",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Running_water/371913_1.wav",
-      "duration": 16.0385300118046,
-      "start_time": 0.7622988979397933
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-  ],
-  "foreground_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/417995.wav",
-      "duration": 2.385923850615635,
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-    {
-      "event_class": "Cat",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Cat/64017.wav",
-      "duration": 0.4961451247165533,
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-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4214/laugh/0050.wav",
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-    {
-      "event_class": "laugh",
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-      "duration": 1.24,
-      "start_time": 8.479236207455482,
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-      "event_class": "cough",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4214/laugh/0030.wav",
-      "duration": 1.68,
-      "start_time": 23.30457675850235,
-      "speaker_id": "4214"
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-100/4214/cough/0066.wav",
-      "duration": 0.9807698494505108,
-      "start_time": 24.040921097969445,
-      "speaker_id": "4214"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056213.json b/conversations/conv_056213.json
deleted file mode 100644
index 3f3c10c717235b5a05fb31878b637f9b48ae8c91..0000000000000000000000000000000000000000
--- a/conversations/conv_056213.json
+++ /dev/null
@@ -1,138 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.063526658462685,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
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-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 5.369730730177981,
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-      "overlap": false,
-      "utterance_id": "7764-106805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
-      "real_speaker_id": "7764",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 5.894010721968106,
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-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6758-72288.flac |",
-      "real_speaker_id": "6758",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
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-      "start_time": 11.020694060898071,
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-      "duration_frames": 60849,
-      "overlap": false,
-      "utterance_id": "7764-106805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
-      "real_speaker_id": "7764",
-      "position_frames": 85915
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 16.032944351308068,
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-      "duration_frames": 48911,
-      "overlap": false,
-      "utterance_id": "6758-72288",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6758-72288.flac |",
-      "real_speaker_id": "6758",
-      "position_frames": 71146
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 20.038617949307017,
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-      "overlap": false,
-      "utterance_id": "7764-106805",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7764-106805.flac |",
-      "real_speaker_id": "7764",
-      "position_frames": 146764
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.35646748296427,
-      "end_time": 31.063526658462685,
-      "duration": 5.707059175498415,
-      "start_frame": 405703,
-      "duration_frames": 91312,
-      "overlap": true,
-      "utterance_id": "7073-92170",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7073-92170.flac |",
-      "real_speaker_id": "7073",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/272022_0.wav",
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-  "paralinguistic_events": [
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-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6758/cough/0007.wav",
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-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7764/laugh/0029.wav",
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-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6758/cough/0047.wav",
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-      "start_time": 15.279911725475062,
-      "speaker_id": "6758"
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7764/laugh/0026.wav",
-      "duration": 0.6860005075861233,
-      "start_time": 25.57308139405027,
-      "speaker_id": "7764"
-    },
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/7073/cough/0054.wav",
-      "duration": 1.4757422134703087,
-      "start_time": 27.061563369377524,
-      "speaker_id": "7073"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056214.json b/conversations/conv_056214.json
deleted file mode 100644
index 60d5279a6db3e055a67174fda1fe95c245a56123..0000000000000000000000000000000000000000
--- a/conversations/conv_056214.json
+++ /dev/null
@@ -1,124 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
-  "segments": [
-    {
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-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.888395270821717,
-      "duration": 3.888395270821717,
-      "start_frame": 0,
-      "duration_frames": 62214,
-      "overlap": false,
-      "utterance_id": "3989-182394",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182394.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
-      "start_time": 4.333404976305165,
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-      "utterance_id": "8367-279367",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279367.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
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-    {
-      "segment_id": "seg0002",
-      "speaker_id": 0,
-      "start_time": 10.999964750025072,
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-      "overlap": true,
-      "utterance_id": "3989-182389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182389.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 2,
-      "start_time": 17.515577474974528,
-      "end_time": 22.506412383258084,
-      "duration": 4.990834908283556,
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-      "duration_frames": 79853,
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-      "utterance_id": "8367-279366",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/8367-279366.flac |",
-      "real_speaker_id": "8367",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.475073141539838,
-      "end_time": 30.349902906788458,
-      "duration": 5.874829765248618,
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-      "duration_frames": 93997,
-      "overlap": false,
-      "utterance_id": "1348-135826",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1348-135826.flac |",
-      "real_speaker_id": "1348",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 30.80659994905152,
-      "end_time": 32.0,
-      "duration": 1.1934000509484797,
-      "start_frame": 492905,
-      "duration_frames": 19094,
-      "overlap": false,
-      "utterance_id": "3989-182389",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/3989-182389.flac |",
-      "real_speaker_id": "3989",
-      "position_frames": 106911
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-  ],
-  "background_events": [
-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/background_long/Frying/417913.wav",
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-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/377501_1.wav",
-      "duration": 0.41732426303854875,
-      "start_time": 29.123649261793194
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-  "paralinguistic_events": [
-    {
-      "event_class": "cough",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/8367/cough/0082.wav",
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-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1348/laugh/0030.wav",
-      "duration": 1.06,
-      "start_time": 23.347283645380212,
-      "speaker_id": "1348"
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-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056225.json b/conversations/conv_056225.json
deleted file mode 100644
index 7012bb46fd39e640871739c8a066846002ba2067..0000000000000000000000000000000000000000
--- a/conversations/conv_056225.json
+++ /dev/null
@@ -1,137 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.245163161210716,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 6.102653750475236,
-      "duration": 6.102653750475236,
-      "start_frame": 0,
-      "duration_frames": 97642,
-      "overlap": false,
-      "utterance_id": "7552-87290",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/7552-87290.flac |",
-      "real_speaker_id": "7552",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 2,
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\ No newline at end of file
diff --git a/conversations/conv_056229.json b/conversations/conv_056229.json
deleted file mode 100644
index ff0eaed67869fd817a359a350ef2995f006a4bf9..0000000000000000000000000000000000000000
--- a/conversations/conv_056229.json
+++ /dev/null
@@ -1,159 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
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-      "real_speaker_id": "2361",
-      "position_frames": 0
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-      "event_class": "Vacuum_cleaner",
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\ No newline at end of file
diff --git a/conversations/conv_056233.json b/conversations/conv_056233.json
deleted file mode 100644
index 87cd9f04069826217208003ae05ba52394cf7d84..0000000000000000000000000000000000000000
--- a/conversations/conv_056233.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
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-  "paralinguistic_events": []
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\ No newline at end of file
diff --git a/conversations/conv_056243.json b/conversations/conv_056243.json
deleted file mode 100644
index 261d17ee2c723c7196a456299e5ffbcc658ad435..0000000000000000000000000000000000000000
--- a/conversations/conv_056243.json
+++ /dev/null
@@ -1,131 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.3333333333333333,
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-      "speaker_id": "7138"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056244.json b/conversations/conv_056244.json
deleted file mode 100644
index 723f77a393fc12fcfd58b7cc451156922a22b836..0000000000000000000000000000000000000000
--- a/conversations/conv_056244.json
+++ /dev/null
@@ -1,130 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 31.799731307829543,
-  "num_speakers": 3,
-  "overlap_rate": 0.16666666666666666,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 1,
-      "start_time": 0.0,
-      "end_time": 3.800545406978265,
-      "duration": 3.800545406978265,
-      "start_frame": 0,
-      "duration_frames": 60808,
-      "overlap": false,
-      "utterance_id": "1607-149245",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-149245.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 0,
-      "start_time": 4.498765415556611,
-      "end_time": 11.007727370426412,
-      "duration": 6.5089619548698,
-      "start_frame": 71980,
-      "duration_frames": 104143,
-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 2,
-      "start_time": 11.297716807259839,
-      "end_time": 16.816661030379638,
-      "duration": 5.518944223119799,
-      "start_frame": 180763,
-      "duration_frames": 88303,
-      "overlap": false,
-      "utterance_id": "1160-139727",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1160-139727.flac |",
-      "real_speaker_id": "1160",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 17.34749672756323,
-      "end_time": 23.901767118790026,
-      "duration": 6.554270391226796,
-      "start_frame": 277559,
-      "duration_frames": 104868,
-      "overlap": false,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 104143
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 1,
-      "start_time": 24.163431113403654,
-      "end_time": 28.039770575573687,
-      "duration": 3.8763394621700327,
-      "start_frame": 386614,
-      "duration_frames": 62021,
-      "overlap": false,
-      "utterance_id": "1607-134636",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/1607-134636.flac |",
-      "real_speaker_id": "1607",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 0,
-      "start_time": 28.368149930349098,
-      "end_time": 31.799731307829543,
-      "duration": 3.4315813774804447,
-      "start_frame": 453890,
-      "duration_frames": 54905,
-      "overlap": true,
-      "utterance_id": "2127-138047",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2127-138047.flac |",
-      "real_speaker_id": "2127",
-      "position_frames": 209011
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dog",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dog/18282.wav",
-      "duration": 0.6348979591836734,
-      "start_time": 5.574508088793281
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-    {
-      "event_class": "Frying",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Frying/347708.wav",
-      "duration": 3.204062551155339,
-      "start_time": 1.2864696437949203
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1607/laugh/0084.wav",
-      "duration": 0.92,
-      "start_time": 0.5677226168355292,
-      "speaker_id": "1607"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/2127/laugh/0056.wav",
-      "duration": 1.52,
-      "start_time": 15.663133916942309,
-      "speaker_id": "2127"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-clean-360/1607/laugh/0095.wav",
-      "duration": 1.0614977431408428,
-      "start_time": 24.80051030744459,
-      "speaker_id": "1607"
-    }
-  ]
-}
\ No newline at end of file
diff --git a/conversations/conv_056248.json b/conversations/conv_056248.json
deleted file mode 100644
index 4746929d0a495b91192a239166c43c71c97e5885..0000000000000000000000000000000000000000
--- a/conversations/conv_056248.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-  "num_segments": 6,
-  "total_duration": 32.0,
-  "num_speakers": 3,
-  "overlap_rate": 0.0,
-  "segments": [
-    {
-      "segment_id": "seg0000",
-      "speaker_id": 0,
-      "start_time": 0.0,
-      "end_time": 3.5065906858266214,
-      "duration": 3.5065906858266214,
-      "start_frame": 0,
-      "duration_frames": 56105,
-      "overlap": false,
-      "utterance_id": "4859-26870",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-26870.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0001",
-      "speaker_id": 1,
-      "start_time": 4.174416631654086,
-      "end_time": 9.430056744168255,
-      "duration": 5.255640112514167,
-      "start_frame": 66790,
-      "duration_frames": 84090,
-      "overlap": false,
-      "utterance_id": "2026-22756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0002",
-      "speaker_id": 1,
-      "start_time": 10.225177061055861,
-      "end_time": 15.550306072527949,
-      "duration": 5.325129011472089,
-      "start_frame": 163602,
-      "duration_frames": 85202,
-      "overlap": false,
-      "utterance_id": "2026-22756",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/2026-22756.flac |",
-      "real_speaker_id": "2026",
-      "position_frames": 84090
-    },
-    {
-      "segment_id": "seg0003",
-      "speaker_id": 0,
-      "start_time": 15.650774640867755,
-      "end_time": 20.65644801333375,
-      "duration": 5.005673372465994,
-      "start_frame": 250412,
-      "duration_frames": 80090,
-      "overlap": false,
-      "utterance_id": "4859-29340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-29340.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 0
-    },
-    {
-      "segment_id": "seg0004",
-      "speaker_id": 0,
-      "start_time": 21.645230688484943,
-      "end_time": 24.996825988769576,
-      "duration": 3.351595300284633,
-      "start_frame": 346323,
-      "duration_frames": 53625,
-      "overlap": false,
-      "utterance_id": "4859-29340",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/4859-29340.flac |",
-      "real_speaker_id": "4859",
-      "position_frames": 80090
-    },
-    {
-      "segment_id": "seg0005",
-      "speaker_id": 2,
-      "start_time": 25.78812856056203,
-      "end_time": 32.0,
-      "duration": 6.211871439437971,
-      "start_frame": 412610,
-      "duration_frames": 99389,
-      "overlap": false,
-      "utterance_id": "6364-66741",
-      "wav_path": "flac -c -d -s /home/zekun.lan/Udata/conversation_data/alltrain_persession_wav/6364-66741.flac |",
-      "real_speaker_id": "6364",
-      "position_frames": 0
-    }
-  ],
-  "background_events": [],
-  "foreground_events": [
-    {
-      "event_class": "Dishes",
-      "wav_path": "conversation_data/synthetic/audio/eval/soundbank/foreground/Dishes/20081_3.wav",
-      "duration": 0.2008390022675737,
-      "start_time": 18.375335551121257
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-  ],
-  "paralinguistic_events": [
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/2026/laugh/0046.wav",
-      "duration": 0.6823864958385145,
-      "start_time": 4.310976484326503,
-      "speaker_id": "2026"
-    },
-    {
-      "event_class": "laugh",
-      "wav_path": "./conversation_data/paralinguistic_filtered/train-other-500/6364/laugh/0131.wav",
-      "duration": 1.56,
-      "start_time": 30.44,
-      "speaker_id": "6364"
-    }
-  ]
-}
\ No newline at end of file